1 /* Copyright 2008-2011 Broadcom Corporation
2  *
3  * Unless you and Broadcom execute a separate written software license
4  * agreement governing use of this software, this software is licensed to you
5  * under the terms of the GNU General Public License version 2, available
6  * at http://www.gnu.org/licenses/old-licenses/gpl-2.0.html (the "GPL").
7  *
8  * Notwithstanding the above, under no circumstances may you combine this
9  * software in any way with any other Broadcom software provided under a
10  * license other than the GPL, without Broadcom's express prior written
11  * consent.
12  *
13  * Written by Yaniv Rosner
14  *
15  */
16 
17 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
18 
19 #include <linux/kernel.h>
20 #include <linux/errno.h>
21 #include <linux/pci.h>
22 #include <linux/netdevice.h>
23 #include <linux/delay.h>
24 #include <linux/ethtool.h>
25 #include <linux/mutex.h>
26 
27 #include "bnx2x.h"
28 #include "bnx2x_cmn.h"
29 
30 /********************************************************/
31 #define ETH_HLEN			14
32 /* L2 header size + 2*VLANs (8 bytes) + LLC SNAP (8 bytes) */
33 #define ETH_OVREHEAD			(ETH_HLEN + 8 + 8)
34 #define ETH_MIN_PACKET_SIZE		60
35 #define ETH_MAX_PACKET_SIZE		1500
36 #define ETH_MAX_JUMBO_PACKET_SIZE	9600
37 #define MDIO_ACCESS_TIMEOUT		1000
38 #define BMAC_CONTROL_RX_ENABLE		2
39 #define WC_LANE_MAX			4
40 #define I2C_SWITCH_WIDTH		2
41 #define I2C_BSC0			0
42 #define I2C_BSC1			1
43 #define I2C_WA_RETRY_CNT		3
44 #define MCPR_IMC_COMMAND_READ_OP	1
45 #define MCPR_IMC_COMMAND_WRITE_OP	2
46 
47 /* LED Blink rate that will achieve ~15.9Hz */
48 #define LED_BLINK_RATE_VAL_E3		354
49 #define LED_BLINK_RATE_VAL_E1X_E2	480
50 /***********************************************************/
51 /*			Shortcut definitions		   */
52 /***********************************************************/
53 
54 #define NIG_LATCH_BC_ENABLE_MI_INT 0
55 
56 #define NIG_STATUS_EMAC0_MI_INT \
57 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_EMAC0_MISC_MI_INT
58 #define NIG_STATUS_XGXS0_LINK10G \
59 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_XGXS0_LINK10G
60 #define NIG_STATUS_XGXS0_LINK_STATUS \
61 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_XGXS0_LINK_STATUS
62 #define NIG_STATUS_XGXS0_LINK_STATUS_SIZE \
63 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_XGXS0_LINK_STATUS_SIZE
64 #define NIG_STATUS_SERDES0_LINK_STATUS \
65 		NIG_STATUS_INTERRUPT_PORT0_REG_STATUS_SERDES0_LINK_STATUS
66 #define NIG_MASK_MI_INT \
67 		NIG_MASK_INTERRUPT_PORT0_REG_MASK_EMAC0_MISC_MI_INT
68 #define NIG_MASK_XGXS0_LINK10G \
69 		NIG_MASK_INTERRUPT_PORT0_REG_MASK_XGXS0_LINK10G
70 #define NIG_MASK_XGXS0_LINK_STATUS \
71 		NIG_MASK_INTERRUPT_PORT0_REG_MASK_XGXS0_LINK_STATUS
72 #define NIG_MASK_SERDES0_LINK_STATUS \
73 		NIG_MASK_INTERRUPT_PORT0_REG_MASK_SERDES0_LINK_STATUS
74 
75 #define MDIO_AN_CL73_OR_37_COMPLETE \
76 		(MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_AUTONEG_COMPLETE | \
77 		 MDIO_GP_STATUS_TOP_AN_STATUS1_CL37_AUTONEG_COMPLETE)
78 
79 #define XGXS_RESET_BITS \
80 	(MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_RSTB_HW |   \
81 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_IDDQ |      \
82 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_PWRDWN |    \
83 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_PWRDWN_SD | \
84 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_XGXS0_TXD_FIFO_RSTB)
85 
86 #define SERDES_RESET_BITS \
87 	(MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_RSTB_HW | \
88 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_IDDQ |    \
89 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_PWRDWN |  \
90 	 MISC_REGISTERS_RESET_REG_3_MISC_NIG_MUX_SERDES0_PWRDWN_SD)
91 
92 #define AUTONEG_CL37		SHARED_HW_CFG_AN_ENABLE_CL37
93 #define AUTONEG_CL73		SHARED_HW_CFG_AN_ENABLE_CL73
94 #define AUTONEG_BAM		SHARED_HW_CFG_AN_ENABLE_BAM
95 #define AUTONEG_PARALLEL \
96 				SHARED_HW_CFG_AN_ENABLE_PARALLEL_DETECTION
97 #define AUTONEG_SGMII_FIBER_AUTODET \
98 				SHARED_HW_CFG_AN_EN_SGMII_FIBER_AUTO_DETECT
99 #define AUTONEG_REMOTE_PHY	SHARED_HW_CFG_AN_ENABLE_REMOTE_PHY
100 
101 #define GP_STATUS_PAUSE_RSOLUTION_TXSIDE \
102 			MDIO_GP_STATUS_TOP_AN_STATUS1_PAUSE_RSOLUTION_TXSIDE
103 #define GP_STATUS_PAUSE_RSOLUTION_RXSIDE \
104 			MDIO_GP_STATUS_TOP_AN_STATUS1_PAUSE_RSOLUTION_RXSIDE
105 #define GP_STATUS_SPEED_MASK \
106 			MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_MASK
107 #define GP_STATUS_10M	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10M
108 #define GP_STATUS_100M	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_100M
109 #define GP_STATUS_1G	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_1G
110 #define GP_STATUS_2_5G	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_2_5G
111 #define GP_STATUS_5G	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_5G
112 #define GP_STATUS_6G	MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_6G
113 #define GP_STATUS_10G_HIG \
114 			MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_HIG
115 #define GP_STATUS_10G_CX4 \
116 			MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_CX4
117 #define GP_STATUS_1G_KX MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_1G_KX
118 #define GP_STATUS_10G_KX4 \
119 			MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_KX4
120 #define	GP_STATUS_10G_KR MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_KR
121 #define	GP_STATUS_10G_XFI   MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_XFI
122 #define	GP_STATUS_20G_DXGXS MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_20G_DXGXS
123 #define	GP_STATUS_10G_SFI   MDIO_GP_STATUS_TOP_AN_STATUS1_ACTUAL_SPEED_10G_SFI
124 #define LINK_10THD		LINK_STATUS_SPEED_AND_DUPLEX_10THD
125 #define LINK_10TFD		LINK_STATUS_SPEED_AND_DUPLEX_10TFD
126 #define LINK_100TXHD		LINK_STATUS_SPEED_AND_DUPLEX_100TXHD
127 #define LINK_100T4		LINK_STATUS_SPEED_AND_DUPLEX_100T4
128 #define LINK_100TXFD		LINK_STATUS_SPEED_AND_DUPLEX_100TXFD
129 #define LINK_1000THD		LINK_STATUS_SPEED_AND_DUPLEX_1000THD
130 #define LINK_1000TFD		LINK_STATUS_SPEED_AND_DUPLEX_1000TFD
131 #define LINK_1000XFD		LINK_STATUS_SPEED_AND_DUPLEX_1000XFD
132 #define LINK_2500THD		LINK_STATUS_SPEED_AND_DUPLEX_2500THD
133 #define LINK_2500TFD		LINK_STATUS_SPEED_AND_DUPLEX_2500TFD
134 #define LINK_2500XFD		LINK_STATUS_SPEED_AND_DUPLEX_2500XFD
135 #define LINK_10GTFD		LINK_STATUS_SPEED_AND_DUPLEX_10GTFD
136 #define LINK_10GXFD		LINK_STATUS_SPEED_AND_DUPLEX_10GXFD
137 #define LINK_20GTFD		LINK_STATUS_SPEED_AND_DUPLEX_20GTFD
138 #define LINK_20GXFD		LINK_STATUS_SPEED_AND_DUPLEX_20GXFD
139 
140 
141 
142 /* */
143 #define SFP_EEPROM_CON_TYPE_ADDR		0x2
144 	#define SFP_EEPROM_CON_TYPE_VAL_LC	0x7
145 	#define SFP_EEPROM_CON_TYPE_VAL_COPPER	0x21
146 
147 
148 #define SFP_EEPROM_COMP_CODE_ADDR		0x3
149 	#define SFP_EEPROM_COMP_CODE_SR_MASK	(1<<4)
150 	#define SFP_EEPROM_COMP_CODE_LR_MASK	(1<<5)
151 	#define SFP_EEPROM_COMP_CODE_LRM_MASK	(1<<6)
152 
153 #define SFP_EEPROM_FC_TX_TECH_ADDR		0x8
154 	#define SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_PASSIVE 0x4
155 	#define SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_ACTIVE  0x8
156 
157 #define SFP_EEPROM_OPTIONS_ADDR			0x40
158 	#define SFP_EEPROM_OPTIONS_LINEAR_RX_OUT_MASK 0x1
159 #define SFP_EEPROM_OPTIONS_SIZE			2
160 
161 #define EDC_MODE_LINEAR				0x0022
162 #define EDC_MODE_LIMITING				0x0044
163 #define EDC_MODE_PASSIVE_DAC			0x0055
164 
165 /* BRB default for class 0 E2 */
166 #define DEFAULT0_E2_BRB_MAC_PAUSE_XOFF_THR	170
167 #define DEFAULT0_E2_BRB_MAC_PAUSE_XON_THR		250
168 #define DEFAULT0_E2_BRB_MAC_FULL_XOFF_THR		10
169 #define DEFAULT0_E2_BRB_MAC_FULL_XON_THR		50
170 
171 /* BRB thresholds for E2*/
172 #define PFC_E2_BRB_MAC_PAUSE_XOFF_THR_PAUSE		170
173 #define PFC_E2_BRB_MAC_PAUSE_XOFF_THR_NON_PAUSE		0
174 
175 #define PFC_E2_BRB_MAC_PAUSE_XON_THR_PAUSE		250
176 #define PFC_E2_BRB_MAC_PAUSE_XON_THR_NON_PAUSE		0
177 
178 #define PFC_E2_BRB_MAC_FULL_XOFF_THR_PAUSE		10
179 #define PFC_E2_BRB_MAC_FULL_XOFF_THR_NON_PAUSE		90
180 
181 #define PFC_E2_BRB_MAC_FULL_XON_THR_PAUSE			50
182 #define PFC_E2_BRB_MAC_FULL_XON_THR_NON_PAUSE		250
183 
184 /* BRB default for class 0 E3A0 */
185 #define DEFAULT0_E3A0_BRB_MAC_PAUSE_XOFF_THR	290
186 #define DEFAULT0_E3A0_BRB_MAC_PAUSE_XON_THR	410
187 #define DEFAULT0_E3A0_BRB_MAC_FULL_XOFF_THR	10
188 #define DEFAULT0_E3A0_BRB_MAC_FULL_XON_THR	50
189 
190 /* BRB thresholds for E3A0 */
191 #define PFC_E3A0_BRB_MAC_PAUSE_XOFF_THR_PAUSE		290
192 #define PFC_E3A0_BRB_MAC_PAUSE_XOFF_THR_NON_PAUSE		0
193 
194 #define PFC_E3A0_BRB_MAC_PAUSE_XON_THR_PAUSE		410
195 #define PFC_E3A0_BRB_MAC_PAUSE_XON_THR_NON_PAUSE		0
196 
197 #define PFC_E3A0_BRB_MAC_FULL_XOFF_THR_PAUSE		10
198 #define PFC_E3A0_BRB_MAC_FULL_XOFF_THR_NON_PAUSE		170
199 
200 #define PFC_E3A0_BRB_MAC_FULL_XON_THR_PAUSE		50
201 #define PFC_E3A0_BRB_MAC_FULL_XON_THR_NON_PAUSE		410
202 
203 /* BRB default for E3B0 */
204 #define DEFAULT0_E3B0_BRB_MAC_PAUSE_XOFF_THR	330
205 #define DEFAULT0_E3B0_BRB_MAC_PAUSE_XON_THR	490
206 #define DEFAULT0_E3B0_BRB_MAC_FULL_XOFF_THR	15
207 #define DEFAULT0_E3B0_BRB_MAC_FULL_XON_THR	55
208 
209 /* BRB thresholds for E3B0 2 port mode*/
210 #define PFC_E3B0_2P_BRB_MAC_PAUSE_XOFF_THR_PAUSE		1025
211 #define PFC_E3B0_2P_BRB_MAC_PAUSE_XOFF_THR_NON_PAUSE	0
212 
213 #define PFC_E3B0_2P_BRB_MAC_PAUSE_XON_THR_PAUSE		1025
214 #define PFC_E3B0_2P_BRB_MAC_PAUSE_XON_THR_NON_PAUSE	0
215 
216 #define PFC_E3B0_2P_BRB_MAC_FULL_XOFF_THR_PAUSE		10
217 #define PFC_E3B0_2P_BRB_MAC_FULL_XOFF_THR_NON_PAUSE	1025
218 
219 #define PFC_E3B0_2P_BRB_MAC_FULL_XON_THR_PAUSE		50
220 #define PFC_E3B0_2P_BRB_MAC_FULL_XON_THR_NON_PAUSE	1025
221 
222 /* only for E3B0*/
223 #define PFC_E3B0_2P_BRB_FULL_LB_XOFF_THR			1025
224 #define PFC_E3B0_2P_BRB_FULL_LB_XON_THR			1025
225 
226 /* Lossy +Lossless GUARANTIED == GUART */
227 #define PFC_E3B0_2P_MIX_PAUSE_LB_GUART			284
228 /* Lossless +Lossless*/
229 #define PFC_E3B0_2P_PAUSE_LB_GUART			236
230 /* Lossy +Lossy*/
231 #define PFC_E3B0_2P_NON_PAUSE_LB_GUART			342
232 
233 /* Lossy +Lossless*/
234 #define PFC_E3B0_2P_MIX_PAUSE_MAC_0_CLASS_T_GUART		284
235 /* Lossless +Lossless*/
236 #define PFC_E3B0_2P_PAUSE_MAC_0_CLASS_T_GUART		236
237 /* Lossy +Lossy*/
238 #define PFC_E3B0_2P_NON_PAUSE_MAC_0_CLASS_T_GUART		336
239 #define PFC_E3B0_2P_BRB_MAC_0_CLASS_T_GUART_HYST		80
240 
241 #define PFC_E3B0_2P_BRB_MAC_1_CLASS_T_GUART		0
242 #define PFC_E3B0_2P_BRB_MAC_1_CLASS_T_GUART_HYST		0
243 
244 /* BRB thresholds for E3B0 4 port mode */
245 #define PFC_E3B0_4P_BRB_MAC_PAUSE_XOFF_THR_PAUSE		304
246 #define PFC_E3B0_4P_BRB_MAC_PAUSE_XOFF_THR_NON_PAUSE	0
247 
248 #define PFC_E3B0_4P_BRB_MAC_PAUSE_XON_THR_PAUSE		384
249 #define PFC_E3B0_4P_BRB_MAC_PAUSE_XON_THR_NON_PAUSE	0
250 
251 #define PFC_E3B0_4P_BRB_MAC_FULL_XOFF_THR_PAUSE		10
252 #define PFC_E3B0_4P_BRB_MAC_FULL_XOFF_THR_NON_PAUSE	304
253 
254 #define PFC_E3B0_4P_BRB_MAC_FULL_XON_THR_PAUSE		50
255 #define PFC_E3B0_4P_BRB_MAC_FULL_XON_THR_NON_PAUSE	384
256 
257 /* only for E3B0*/
258 #define PFC_E3B0_4P_BRB_FULL_LB_XOFF_THR			304
259 #define PFC_E3B0_4P_BRB_FULL_LB_XON_THR			384
260 #define PFC_E3B0_4P_LB_GUART		120
261 
262 #define PFC_E3B0_4P_BRB_MAC_0_CLASS_T_GUART		120
263 #define PFC_E3B0_4P_BRB_MAC_0_CLASS_T_GUART_HYST	80
264 
265 #define PFC_E3B0_4P_BRB_MAC_1_CLASS_T_GUART		80
266 #define PFC_E3B0_4P_BRB_MAC_1_CLASS_T_GUART_HYST	120
267 
268 /* Pause defines*/
269 #define DEFAULT_E3B0_BRB_FULL_LB_XOFF_THR			330
270 #define DEFAULT_E3B0_BRB_FULL_LB_XON_THR			490
271 #define DEFAULT_E3B0_LB_GUART		40
272 
273 #define DEFAULT_E3B0_BRB_MAC_0_CLASS_T_GUART		40
274 #define DEFAULT_E3B0_BRB_MAC_0_CLASS_T_GUART_HYST	0
275 
276 #define DEFAULT_E3B0_BRB_MAC_1_CLASS_T_GUART		40
277 #define DEFAULT_E3B0_BRB_MAC_1_CLASS_T_GUART_HYST	0
278 
279 /* ETS defines*/
280 #define DCBX_INVALID_COS					(0xFF)
281 
282 #define ETS_BW_LIMIT_CREDIT_UPPER_BOUND		(0x5000)
283 #define ETS_BW_LIMIT_CREDIT_WEIGHT		(0x5000)
284 #define ETS_E3B0_NIG_MIN_W_VAL_UP_TO_10GBPS		(1360)
285 #define ETS_E3B0_NIG_MIN_W_VAL_20GBPS			(2720)
286 #define ETS_E3B0_PBF_MIN_W_VAL				(10000)
287 
288 #define MAX_PACKET_SIZE					(9700)
289 #define WC_UC_TIMEOUT					100
290 #define MAX_KR_LINK_RETRY				4
291 
292 /**********************************************************/
293 /*                     INTERFACE                          */
294 /**********************************************************/
295 
296 #define CL22_WR_OVER_CL45(_bp, _phy, _bank, _addr, _val) \
297 	bnx2x_cl45_write(_bp, _phy, \
298 		(_phy)->def_md_devad, \
299 		(_bank + (_addr & 0xf)), \
300 		_val)
301 
302 #define CL22_RD_OVER_CL45(_bp, _phy, _bank, _addr, _val) \
303 	bnx2x_cl45_read(_bp, _phy, \
304 		(_phy)->def_md_devad, \
305 		(_bank + (_addr & 0xf)), \
306 		_val)
307 
bnx2x_bits_en(struct bnx2x * bp,u32 reg,u32 bits)308 static u32 bnx2x_bits_en(struct bnx2x *bp, u32 reg, u32 bits)
309 {
310 	u32 val = REG_RD(bp, reg);
311 
312 	val |= bits;
313 	REG_WR(bp, reg, val);
314 	return val;
315 }
316 
bnx2x_bits_dis(struct bnx2x * bp,u32 reg,u32 bits)317 static u32 bnx2x_bits_dis(struct bnx2x *bp, u32 reg, u32 bits)
318 {
319 	u32 val = REG_RD(bp, reg);
320 
321 	val &= ~bits;
322 	REG_WR(bp, reg, val);
323 	return val;
324 }
325 
326 /******************************************************************/
327 /*			EPIO/GPIO section			  */
328 /******************************************************************/
bnx2x_get_epio(struct bnx2x * bp,u32 epio_pin,u32 * en)329 static void bnx2x_get_epio(struct bnx2x *bp, u32 epio_pin, u32 *en)
330 {
331 	u32 epio_mask, gp_oenable;
332 	*en = 0;
333 	/* Sanity check */
334 	if (epio_pin > 31) {
335 		DP(NETIF_MSG_LINK, "Invalid EPIO pin %d to get\n", epio_pin);
336 		return;
337 	}
338 
339 	epio_mask = 1 << epio_pin;
340 	/* Set this EPIO to output */
341 	gp_oenable = REG_RD(bp, MCP_REG_MCPR_GP_OENABLE);
342 	REG_WR(bp, MCP_REG_MCPR_GP_OENABLE, gp_oenable & ~epio_mask);
343 
344 	*en = (REG_RD(bp, MCP_REG_MCPR_GP_INPUTS) & epio_mask) >> epio_pin;
345 }
bnx2x_set_epio(struct bnx2x * bp,u32 epio_pin,u32 en)346 static void bnx2x_set_epio(struct bnx2x *bp, u32 epio_pin, u32 en)
347 {
348 	u32 epio_mask, gp_output, gp_oenable;
349 
350 	/* Sanity check */
351 	if (epio_pin > 31) {
352 		DP(NETIF_MSG_LINK, "Invalid EPIO pin %d to set\n", epio_pin);
353 		return;
354 	}
355 	DP(NETIF_MSG_LINK, "Setting EPIO pin %d to %d\n", epio_pin, en);
356 	epio_mask = 1 << epio_pin;
357 	/* Set this EPIO to output */
358 	gp_output = REG_RD(bp, MCP_REG_MCPR_GP_OUTPUTS);
359 	if (en)
360 		gp_output |= epio_mask;
361 	else
362 		gp_output &= ~epio_mask;
363 
364 	REG_WR(bp, MCP_REG_MCPR_GP_OUTPUTS, gp_output);
365 
366 	/* Set the value for this EPIO */
367 	gp_oenable = REG_RD(bp, MCP_REG_MCPR_GP_OENABLE);
368 	REG_WR(bp, MCP_REG_MCPR_GP_OENABLE, gp_oenable | epio_mask);
369 }
370 
bnx2x_set_cfg_pin(struct bnx2x * bp,u32 pin_cfg,u32 val)371 static void bnx2x_set_cfg_pin(struct bnx2x *bp, u32 pin_cfg, u32 val)
372 {
373 	if (pin_cfg == PIN_CFG_NA)
374 		return;
375 	if (pin_cfg >= PIN_CFG_EPIO0) {
376 		bnx2x_set_epio(bp, pin_cfg - PIN_CFG_EPIO0, val);
377 	} else {
378 		u8 gpio_num = (pin_cfg - PIN_CFG_GPIO0_P0) & 0x3;
379 		u8 gpio_port = (pin_cfg - PIN_CFG_GPIO0_P0) >> 2;
380 		bnx2x_set_gpio(bp, gpio_num, (u8)val, gpio_port);
381 	}
382 }
383 
bnx2x_get_cfg_pin(struct bnx2x * bp,u32 pin_cfg,u32 * val)384 static u32 bnx2x_get_cfg_pin(struct bnx2x *bp, u32 pin_cfg, u32 *val)
385 {
386 	if (pin_cfg == PIN_CFG_NA)
387 		return -EINVAL;
388 	if (pin_cfg >= PIN_CFG_EPIO0) {
389 		bnx2x_get_epio(bp, pin_cfg - PIN_CFG_EPIO0, val);
390 	} else {
391 		u8 gpio_num = (pin_cfg - PIN_CFG_GPIO0_P0) & 0x3;
392 		u8 gpio_port = (pin_cfg - PIN_CFG_GPIO0_P0) >> 2;
393 		*val = bnx2x_get_gpio(bp, gpio_num, gpio_port);
394 	}
395 	return 0;
396 
397 }
398 /******************************************************************/
399 /*				ETS section			  */
400 /******************************************************************/
bnx2x_ets_e2e3a0_disabled(struct link_params * params)401 static void bnx2x_ets_e2e3a0_disabled(struct link_params *params)
402 {
403 	/* ETS disabled configuration*/
404 	struct bnx2x *bp = params->bp;
405 
406 	DP(NETIF_MSG_LINK, "ETS E2E3 disabled configuration\n");
407 
408 	/*
409 	 * mapping between entry  priority to client number (0,1,2 -debug and
410 	 * management clients, 3 - COS0 client, 4 - COS client)(HIGHEST)
411 	 * 3bits client num.
412 	 *   PRI4    |    PRI3    |    PRI2    |    PRI1    |    PRI0
413 	 * cos1-100     cos0-011     dbg1-010     dbg0-001     MCP-000
414 	 */
415 
416 	REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT, 0x4688);
417 	/*
418 	 * Bitmap of 5bits length. Each bit specifies whether the entry behaves
419 	 * as strict.  Bits 0,1,2 - debug and management entries, 3 -
420 	 * COS0 entry, 4 - COS1 entry.
421 	 * COS1 | COS0 | DEBUG1 | DEBUG0 | MGMT
422 	 * bit4   bit3	  bit2   bit1	  bit0
423 	 * MCP and debug are strict
424 	 */
425 
426 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x7);
427 	/* defines which entries (clients) are subjected to WFQ arbitration */
428 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ, 0);
429 	/*
430 	 * For strict priority entries defines the number of consecutive
431 	 * slots for the highest priority.
432 	 */
433 	REG_WR(bp, NIG_REG_P0_TX_ARB_NUM_STRICT_ARB_SLOTS, 0x100);
434 	/*
435 	 * mapping between the CREDIT_WEIGHT registers and actual client
436 	 * numbers
437 	 */
438 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP, 0);
439 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0, 0);
440 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1, 0);
441 
442 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_0, 0);
443 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_1, 0);
444 	REG_WR(bp, PBF_REG_HIGH_PRIORITY_COS_NUM, 0);
445 	/* ETS mode disable */
446 	REG_WR(bp, PBF_REG_ETS_ENABLED, 0);
447 	/*
448 	 * If ETS mode is enabled (there is no strict priority) defines a WFQ
449 	 * weight for COS0/COS1.
450 	 */
451 	REG_WR(bp, PBF_REG_COS0_WEIGHT, 0x2710);
452 	REG_WR(bp, PBF_REG_COS1_WEIGHT, 0x2710);
453 	/* Upper bound that COS0_WEIGHT can reach in the WFQ arbiter */
454 	REG_WR(bp, PBF_REG_COS0_UPPER_BOUND, 0x989680);
455 	REG_WR(bp, PBF_REG_COS1_UPPER_BOUND, 0x989680);
456 	/* Defines the number of consecutive slots for the strict priority */
457 	REG_WR(bp, PBF_REG_NUM_STRICT_ARB_SLOTS, 0);
458 }
459 /******************************************************************************
460 * Description:
461 *	Getting min_w_val will be set according to line speed .
462 *.
463 ******************************************************************************/
bnx2x_ets_get_min_w_val_nig(const struct link_vars * vars)464 static u32 bnx2x_ets_get_min_w_val_nig(const struct link_vars *vars)
465 {
466 	u32 min_w_val = 0;
467 	/* Calculate min_w_val.*/
468 	if (vars->link_up) {
469 		if (vars->line_speed == SPEED_20000)
470 			min_w_val = ETS_E3B0_NIG_MIN_W_VAL_20GBPS;
471 		else
472 			min_w_val = ETS_E3B0_NIG_MIN_W_VAL_UP_TO_10GBPS;
473 	} else
474 		min_w_val = ETS_E3B0_NIG_MIN_W_VAL_20GBPS;
475 	/**
476 	 *  If the link isn't up (static configuration for example ) The
477 	 *  link will be according to 20GBPS.
478 	*/
479 	return min_w_val;
480 }
481 /******************************************************************************
482 * Description:
483 *	Getting credit upper bound form min_w_val.
484 *.
485 ******************************************************************************/
bnx2x_ets_get_credit_upper_bound(const u32 min_w_val)486 static u32 bnx2x_ets_get_credit_upper_bound(const u32 min_w_val)
487 {
488 	const u32 credit_upper_bound = (u32)MAXVAL((150 * min_w_val),
489 						MAX_PACKET_SIZE);
490 	return credit_upper_bound;
491 }
492 /******************************************************************************
493 * Description:
494 *	Set credit upper bound for NIG.
495 *.
496 ******************************************************************************/
bnx2x_ets_e3b0_set_credit_upper_bound_nig(const struct link_params * params,const u32 min_w_val)497 static void bnx2x_ets_e3b0_set_credit_upper_bound_nig(
498 	const struct link_params *params,
499 	const u32 min_w_val)
500 {
501 	struct bnx2x *bp = params->bp;
502 	const u8 port = params->port;
503 	const u32 credit_upper_bound =
504 	    bnx2x_ets_get_credit_upper_bound(min_w_val);
505 
506 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_0 :
507 		NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_0, credit_upper_bound);
508 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_1 :
509 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_1, credit_upper_bound);
510 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_2 :
511 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_2, credit_upper_bound);
512 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_3 :
513 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_3, credit_upper_bound);
514 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_4 :
515 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_4, credit_upper_bound);
516 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_UPPER_BOUND_5 :
517 		   NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_5, credit_upper_bound);
518 
519 	if (!port) {
520 		REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_6,
521 			credit_upper_bound);
522 		REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_7,
523 			credit_upper_bound);
524 		REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_8,
525 			credit_upper_bound);
526 	}
527 }
528 /******************************************************************************
529 * Description:
530 *	Will return the NIG ETS registers to init values.Except
531 *	credit_upper_bound.
532 *	That isn't used in this configuration (No WFQ is enabled) and will be
533 *	configured acording to spec
534 *.
535 ******************************************************************************/
bnx2x_ets_e3b0_nig_disabled(const struct link_params * params,const struct link_vars * vars)536 static void bnx2x_ets_e3b0_nig_disabled(const struct link_params *params,
537 					const struct link_vars *vars)
538 {
539 	struct bnx2x *bp = params->bp;
540 	const u8 port = params->port;
541 	const u32 min_w_val = bnx2x_ets_get_min_w_val_nig(vars);
542 	/**
543 	 * mapping between entry  priority to client number (0,1,2 -debug and
544 	 * management clients, 3 - COS0 client, 4 - COS1, ... 8 -
545 	 * COS5)(HIGHEST) 4bits client num.TODO_ETS - Should be done by
546 	 * reset value or init tool
547 	 */
548 	if (port) {
549 		REG_WR(bp, NIG_REG_P1_TX_ARB_PRIORITY_CLIENT2_LSB, 0x543210);
550 		REG_WR(bp, NIG_REG_P1_TX_ARB_PRIORITY_CLIENT2_MSB, 0x0);
551 	} else {
552 		REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_LSB, 0x76543210);
553 		REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_MSB, 0x8);
554 	}
555 	/**
556 	* For strict priority entries defines the number of consecutive
557 	* slots for the highest priority.
558 	*/
559 	/* TODO_ETS - Should be done by reset value or init tool */
560 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_NUM_STRICT_ARB_SLOTS :
561 		   NIG_REG_P1_TX_ARB_NUM_STRICT_ARB_SLOTS, 0x100);
562 	/**
563 	 * mapping between the CREDIT_WEIGHT registers and actual client
564 	 * numbers
565 	 */
566 	/* TODO_ETS - Should be done by reset value or init tool */
567 	if (port) {
568 		/*Port 1 has 6 COS*/
569 		REG_WR(bp, NIG_REG_P1_TX_ARB_CLIENT_CREDIT_MAP2_LSB, 0x210543);
570 		REG_WR(bp, NIG_REG_P1_TX_ARB_CLIENT_CREDIT_MAP2_MSB, 0x0);
571 	} else {
572 		/*Port 0 has 9 COS*/
573 		REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP2_LSB,
574 		       0x43210876);
575 		REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP2_MSB, 0x5);
576 	}
577 
578 	/**
579 	 * Bitmap of 5bits length. Each bit specifies whether the entry behaves
580 	 * as strict.  Bits 0,1,2 - debug and management entries, 3 -
581 	 * COS0 entry, 4 - COS1 entry.
582 	 * COS1 | COS0 | DEBUG1 | DEBUG0 | MGMT
583 	 * bit4   bit3	  bit2   bit1	  bit0
584 	 * MCP and debug are strict
585 	 */
586 	if (port)
587 		REG_WR(bp, NIG_REG_P1_TX_ARB_CLIENT_IS_STRICT, 0x3f);
588 	else
589 		REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x1ff);
590 	/* defines which entries (clients) are subjected to WFQ arbitration */
591 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CLIENT_IS_SUBJECT2WFQ :
592 		   NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ, 0);
593 
594 	/**
595 	* Please notice the register address are note continuous and a
596 	* for here is note appropriate.In 2 port mode port0 only COS0-5
597 	* can be used. DEBUG1,DEBUG1,MGMT are never used for WFQ* In 4
598 	* port mode port1 only COS0-2 can be used. DEBUG1,DEBUG1,MGMT
599 	* are never used for WFQ
600 	*/
601 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_0 :
602 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0, 0x0);
603 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_1 :
604 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1, 0x0);
605 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_2 :
606 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_2, 0x0);
607 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_3 :
608 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_3, 0x0);
609 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_4 :
610 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_4, 0x0);
611 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_5 :
612 		   NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_5, 0x0);
613 	if (!port) {
614 		REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_6, 0x0);
615 		REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_7, 0x0);
616 		REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_8, 0x0);
617 	}
618 
619 	bnx2x_ets_e3b0_set_credit_upper_bound_nig(params, min_w_val);
620 }
621 /******************************************************************************
622 * Description:
623 *	Set credit upper bound for PBF.
624 *.
625 ******************************************************************************/
bnx2x_ets_e3b0_set_credit_upper_bound_pbf(const struct link_params * params,const u32 min_w_val)626 static void bnx2x_ets_e3b0_set_credit_upper_bound_pbf(
627 	const struct link_params *params,
628 	const u32 min_w_val)
629 {
630 	struct bnx2x *bp = params->bp;
631 	const u32 credit_upper_bound =
632 	    bnx2x_ets_get_credit_upper_bound(min_w_val);
633 	const u8 port = params->port;
634 	u32 base_upper_bound = 0;
635 	u8 max_cos = 0;
636 	u8 i = 0;
637 	/**
638 	* In 2 port mode port0 has COS0-5 that can be used for WFQ.In 4
639 	* port mode port1 has COS0-2 that can be used for WFQ.
640 	*/
641 	if (!port) {
642 		base_upper_bound = PBF_REG_COS0_UPPER_BOUND_P0;
643 		max_cos = DCBX_E3B0_MAX_NUM_COS_PORT0;
644 	} else {
645 		base_upper_bound = PBF_REG_COS0_UPPER_BOUND_P1;
646 		max_cos = DCBX_E3B0_MAX_NUM_COS_PORT1;
647 	}
648 
649 	for (i = 0; i < max_cos; i++)
650 		REG_WR(bp, base_upper_bound + (i << 2), credit_upper_bound);
651 }
652 
653 /******************************************************************************
654 * Description:
655 *	Will return the PBF ETS registers to init values.Except
656 *	credit_upper_bound.
657 *	That isn't used in this configuration (No WFQ is enabled) and will be
658 *	configured acording to spec
659 *.
660 ******************************************************************************/
bnx2x_ets_e3b0_pbf_disabled(const struct link_params * params)661 static void bnx2x_ets_e3b0_pbf_disabled(const struct link_params *params)
662 {
663 	struct bnx2x *bp = params->bp;
664 	const u8 port = params->port;
665 	const u32 min_w_val_pbf = ETS_E3B0_PBF_MIN_W_VAL;
666 	u8 i = 0;
667 	u32 base_weight = 0;
668 	u8 max_cos = 0;
669 
670 	/**
671 	 * mapping between entry  priority to client number 0 - COS0
672 	 * client, 2 - COS1, ... 5 - COS5)(HIGHEST) 4bits client num.
673 	 * TODO_ETS - Should be done by reset value or init tool
674 	 */
675 	if (port)
676 		/*  0x688 (|011|0 10|00 1|000) */
677 		REG_WR(bp, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P1 , 0x688);
678 	else
679 		/*  (10 1|100 |011|0 10|00 1|000) */
680 		REG_WR(bp, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P0 , 0x2C688);
681 
682 	/* TODO_ETS - Should be done by reset value or init tool */
683 	if (port)
684 		/* 0x688 (|011|0 10|00 1|000)*/
685 		REG_WR(bp, PBF_REG_ETS_ARB_CLIENT_CREDIT_MAP_P1, 0x688);
686 	else
687 	/* 0x2C688 (10 1|100 |011|0 10|00 1|000) */
688 	REG_WR(bp, PBF_REG_ETS_ARB_CLIENT_CREDIT_MAP_P0, 0x2C688);
689 
690 	REG_WR(bp, (port) ? PBF_REG_ETS_ARB_NUM_STRICT_ARB_SLOTS_P1 :
691 		   PBF_REG_ETS_ARB_NUM_STRICT_ARB_SLOTS_P0 , 0x100);
692 
693 
694 	REG_WR(bp, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P1 :
695 		   PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P0 , 0);
696 
697 	REG_WR(bp, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P1 :
698 		   PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P0 , 0);
699 	/**
700 	* In 2 port mode port0 has COS0-5 that can be used for WFQ.
701 	* In 4 port mode port1 has COS0-2 that can be used for WFQ.
702 	*/
703 	if (!port) {
704 		base_weight = PBF_REG_COS0_WEIGHT_P0;
705 		max_cos = DCBX_E3B0_MAX_NUM_COS_PORT0;
706 	} else {
707 		base_weight = PBF_REG_COS0_WEIGHT_P1;
708 		max_cos = DCBX_E3B0_MAX_NUM_COS_PORT1;
709 	}
710 
711 	for (i = 0; i < max_cos; i++)
712 		REG_WR(bp, base_weight + (0x4 * i), 0);
713 
714 	bnx2x_ets_e3b0_set_credit_upper_bound_pbf(params, min_w_val_pbf);
715 }
716 /******************************************************************************
717 * Description:
718 *	E3B0 disable will return basicly the values to init values.
719 *.
720 ******************************************************************************/
bnx2x_ets_e3b0_disabled(const struct link_params * params,const struct link_vars * vars)721 static int bnx2x_ets_e3b0_disabled(const struct link_params *params,
722 				   const struct link_vars *vars)
723 {
724 	struct bnx2x *bp = params->bp;
725 
726 	if (!CHIP_IS_E3B0(bp)) {
727 		DP(NETIF_MSG_LINK,
728 		   "bnx2x_ets_e3b0_disabled the chip isn't E3B0\n");
729 		return -EINVAL;
730 	}
731 
732 	bnx2x_ets_e3b0_nig_disabled(params, vars);
733 
734 	bnx2x_ets_e3b0_pbf_disabled(params);
735 
736 	return 0;
737 }
738 
739 /******************************************************************************
740 * Description:
741 *	Disable will return basicly the values to init values.
742 *.
743 ******************************************************************************/
bnx2x_ets_disabled(struct link_params * params,struct link_vars * vars)744 int bnx2x_ets_disabled(struct link_params *params,
745 		      struct link_vars *vars)
746 {
747 	struct bnx2x *bp = params->bp;
748 	int bnx2x_status = 0;
749 
750 	if ((CHIP_IS_E2(bp)) || (CHIP_IS_E3A0(bp)))
751 		bnx2x_ets_e2e3a0_disabled(params);
752 	else if (CHIP_IS_E3B0(bp))
753 		bnx2x_status = bnx2x_ets_e3b0_disabled(params, vars);
754 	else {
755 		DP(NETIF_MSG_LINK, "bnx2x_ets_disabled - chip not supported\n");
756 		return -EINVAL;
757 	}
758 
759 	return bnx2x_status;
760 }
761 
762 /******************************************************************************
763 * Description
764 *	Set the COS mappimg to SP and BW until this point all the COS are not
765 *	set as SP or BW.
766 ******************************************************************************/
bnx2x_ets_e3b0_cli_map(const struct link_params * params,const struct bnx2x_ets_params * ets_params,const u8 cos_sp_bitmap,const u8 cos_bw_bitmap)767 static int bnx2x_ets_e3b0_cli_map(const struct link_params *params,
768 				  const struct bnx2x_ets_params *ets_params,
769 				  const u8 cos_sp_bitmap,
770 				  const u8 cos_bw_bitmap)
771 {
772 	struct bnx2x *bp = params->bp;
773 	const u8 port = params->port;
774 	const u8 nig_cli_sp_bitmap = 0x7 | (cos_sp_bitmap << 3);
775 	const u8 pbf_cli_sp_bitmap = cos_sp_bitmap;
776 	const u8 nig_cli_subject2wfq_bitmap = cos_bw_bitmap << 3;
777 	const u8 pbf_cli_subject2wfq_bitmap = cos_bw_bitmap;
778 
779 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CLIENT_IS_STRICT :
780 	       NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, nig_cli_sp_bitmap);
781 
782 	REG_WR(bp, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P1 :
783 	       PBF_REG_ETS_ARB_CLIENT_IS_STRICT_P0 , pbf_cli_sp_bitmap);
784 
785 	REG_WR(bp, (port) ? NIG_REG_P1_TX_ARB_CLIENT_IS_SUBJECT2WFQ :
786 	       NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ,
787 	       nig_cli_subject2wfq_bitmap);
788 
789 	REG_WR(bp, (port) ? PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P1 :
790 	       PBF_REG_ETS_ARB_CLIENT_IS_SUBJECT2WFQ_P0,
791 	       pbf_cli_subject2wfq_bitmap);
792 
793 	return 0;
794 }
795 
796 /******************************************************************************
797 * Description:
798 *	This function is needed because NIG ARB_CREDIT_WEIGHT_X are
799 *	not continues and ARB_CREDIT_WEIGHT_0 + offset is suitable.
800 ******************************************************************************/
bnx2x_ets_e3b0_set_cos_bw(struct bnx2x * bp,const u8 cos_entry,const u32 min_w_val_nig,const u32 min_w_val_pbf,const u16 total_bw,const u8 bw,const u8 port)801 static int bnx2x_ets_e3b0_set_cos_bw(struct bnx2x *bp,
802 				     const u8 cos_entry,
803 				     const u32 min_w_val_nig,
804 				     const u32 min_w_val_pbf,
805 				     const u16 total_bw,
806 				     const u8 bw,
807 				     const u8 port)
808 {
809 	u32 nig_reg_adress_crd_weight = 0;
810 	u32 pbf_reg_adress_crd_weight = 0;
811 	/* Calculate and set BW for this COS - use 1 instead of 0 for BW */
812 	const u32 cos_bw_nig = ((bw ? bw : 1) * min_w_val_nig) / total_bw;
813 	const u32 cos_bw_pbf = ((bw ? bw : 1) * min_w_val_pbf) / total_bw;
814 
815 	switch (cos_entry) {
816 	case 0:
817 	    nig_reg_adress_crd_weight =
818 		 (port) ? NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_0 :
819 		     NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0;
820 	     pbf_reg_adress_crd_weight = (port) ?
821 		 PBF_REG_COS0_WEIGHT_P1 : PBF_REG_COS0_WEIGHT_P0;
822 	     break;
823 	case 1:
824 	     nig_reg_adress_crd_weight = (port) ?
825 		 NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_1 :
826 		 NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1;
827 	     pbf_reg_adress_crd_weight = (port) ?
828 		 PBF_REG_COS1_WEIGHT_P1 : PBF_REG_COS1_WEIGHT_P0;
829 	     break;
830 	case 2:
831 	     nig_reg_adress_crd_weight = (port) ?
832 		 NIG_REG_P1_TX_ARB_CREDIT_WEIGHT_2 :
833 		 NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_2;
834 
835 		 pbf_reg_adress_crd_weight = (port) ?
836 		     PBF_REG_COS2_WEIGHT_P1 : PBF_REG_COS2_WEIGHT_P0;
837 	     break;
838 	case 3:
839 	    if (port)
840 			return -EINVAL;
841 	     nig_reg_adress_crd_weight =
842 		 NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_3;
843 	     pbf_reg_adress_crd_weight =
844 		 PBF_REG_COS3_WEIGHT_P0;
845 	     break;
846 	case 4:
847 	    if (port)
848 		return -EINVAL;
849 	     nig_reg_adress_crd_weight =
850 		 NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_4;
851 	     pbf_reg_adress_crd_weight = PBF_REG_COS4_WEIGHT_P0;
852 	     break;
853 	case 5:
854 	    if (port)
855 		return -EINVAL;
856 	     nig_reg_adress_crd_weight =
857 		 NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_5;
858 	     pbf_reg_adress_crd_weight = PBF_REG_COS5_WEIGHT_P0;
859 	     break;
860 	}
861 
862 	REG_WR(bp, nig_reg_adress_crd_weight, cos_bw_nig);
863 
864 	REG_WR(bp, pbf_reg_adress_crd_weight, cos_bw_pbf);
865 
866 	return 0;
867 }
868 /******************************************************************************
869 * Description:
870 *	Calculate the total BW.A value of 0 isn't legal.
871 *.
872 ******************************************************************************/
bnx2x_ets_e3b0_get_total_bw(const struct link_params * params,struct bnx2x_ets_params * ets_params,u16 * total_bw)873 static int bnx2x_ets_e3b0_get_total_bw(
874 	const struct link_params *params,
875 	struct bnx2x_ets_params *ets_params,
876 	u16 *total_bw)
877 {
878 	struct bnx2x *bp = params->bp;
879 	u8 cos_idx = 0;
880 	u8 is_bw_cos_exist = 0;
881 
882 	*total_bw = 0 ;
883 
884 	/* Calculate total BW requested */
885 	for (cos_idx = 0; cos_idx < ets_params->num_of_cos; cos_idx++) {
886 		if (ets_params->cos[cos_idx].state == bnx2x_cos_state_bw) {
887 			is_bw_cos_exist = 1;
888 			if (!ets_params->cos[cos_idx].params.bw_params.bw) {
889 				DP(NETIF_MSG_LINK, "bnx2x_ets_E3B0_config BW"
890 						   "was set to 0\n");
891 				/*
892 				 * This is to prevent a state when ramrods
893 				 * can't be sent
894 				*/
895 				ets_params->cos[cos_idx].params.bw_params.bw
896 					 = 1;
897 			}
898 			*total_bw +=
899 				ets_params->cos[cos_idx].params.bw_params.bw;
900 		}
901 	}
902 
903 	/* Check total BW is valid */
904 	if ((is_bw_cos_exist == 1) && (*total_bw != 100)) {
905 		if (*total_bw == 0) {
906 			DP(NETIF_MSG_LINK,
907 			   "bnx2x_ets_E3B0_config total BW shouldn't be 0\n");
908 			return -EINVAL;
909 		}
910 		DP(NETIF_MSG_LINK,
911 		   "bnx2x_ets_E3B0_config total BW should be 100\n");
912 		/*
913 		 * We can handle a case whre the BW isn't 100 this can happen
914 		 * if the TC are joined.
915 		 */
916 	}
917 	return 0;
918 }
919 
920 /******************************************************************************
921 * Description:
922 *	Invalidate all the sp_pri_to_cos.
923 *.
924 ******************************************************************************/
bnx2x_ets_e3b0_sp_pri_to_cos_init(u8 * sp_pri_to_cos)925 static void bnx2x_ets_e3b0_sp_pri_to_cos_init(u8 *sp_pri_to_cos)
926 {
927 	u8 pri = 0;
928 	for (pri = 0; pri < DCBX_MAX_NUM_COS; pri++)
929 		sp_pri_to_cos[pri] = DCBX_INVALID_COS;
930 }
931 /******************************************************************************
932 * Description:
933 *	Calculate and set the SP (ARB_PRIORITY_CLIENT) NIG and PBF registers
934 *	according to sp_pri_to_cos.
935 *.
936 ******************************************************************************/
bnx2x_ets_e3b0_sp_pri_to_cos_set(const struct link_params * params,u8 * sp_pri_to_cos,const u8 pri,const u8 cos_entry)937 static int bnx2x_ets_e3b0_sp_pri_to_cos_set(const struct link_params *params,
938 					    u8 *sp_pri_to_cos, const u8 pri,
939 					    const u8 cos_entry)
940 {
941 	struct bnx2x *bp = params->bp;
942 	const u8 port = params->port;
943 	const u8 max_num_of_cos = (port) ? DCBX_E3B0_MAX_NUM_COS_PORT1 :
944 		DCBX_E3B0_MAX_NUM_COS_PORT0;
945 
946 	if (sp_pri_to_cos[pri] != DCBX_INVALID_COS) {
947 		DP(NETIF_MSG_LINK, "bnx2x_ets_e3b0_sp_pri_to_cos_set invalid "
948 				   "parameter There can't be two COS's with "
949 				   "the same strict pri\n");
950 		return -EINVAL;
951 	}
952 
953 	if (pri > max_num_of_cos) {
954 		DP(NETIF_MSG_LINK, "bnx2x_ets_e3b0_sp_pri_to_cos_set invalid "
955 		   "parameter Illegal strict priority\n");
956 	    return -EINVAL;
957 	}
958 
959 	sp_pri_to_cos[pri] = cos_entry;
960 	return 0;
961 
962 }
963 
964 /******************************************************************************
965 * Description:
966 *	Returns the correct value according to COS and priority in
967 *	the sp_pri_cli register.
968 *.
969 ******************************************************************************/
bnx2x_e3b0_sp_get_pri_cli_reg(const u8 cos,const u8 cos_offset,const u8 pri_set,const u8 pri_offset,const u8 entry_size)970 static u64 bnx2x_e3b0_sp_get_pri_cli_reg(const u8 cos, const u8 cos_offset,
971 					 const u8 pri_set,
972 					 const u8 pri_offset,
973 					 const u8 entry_size)
974 {
975 	u64 pri_cli_nig = 0;
976 	pri_cli_nig = ((u64)(cos + cos_offset)) << (entry_size *
977 						    (pri_set + pri_offset));
978 
979 	return pri_cli_nig;
980 }
981 /******************************************************************************
982 * Description:
983 *	Returns the correct value according to COS and priority in the
984 *	sp_pri_cli register for NIG.
985 *.
986 ******************************************************************************/
bnx2x_e3b0_sp_get_pri_cli_reg_nig(const u8 cos,const u8 pri_set)987 static u64 bnx2x_e3b0_sp_get_pri_cli_reg_nig(const u8 cos, const u8 pri_set)
988 {
989 	/* MCP Dbg0 and dbg1 are always with higher strict pri*/
990 	const u8 nig_cos_offset = 3;
991 	const u8 nig_pri_offset = 3;
992 
993 	return bnx2x_e3b0_sp_get_pri_cli_reg(cos, nig_cos_offset, pri_set,
994 		nig_pri_offset, 4);
995 
996 }
997 /******************************************************************************
998 * Description:
999 *	Returns the correct value according to COS and priority in the
1000 *	sp_pri_cli register for PBF.
1001 *.
1002 ******************************************************************************/
bnx2x_e3b0_sp_get_pri_cli_reg_pbf(const u8 cos,const u8 pri_set)1003 static u64 bnx2x_e3b0_sp_get_pri_cli_reg_pbf(const u8 cos, const u8 pri_set)
1004 {
1005 	const u8 pbf_cos_offset = 0;
1006 	const u8 pbf_pri_offset = 0;
1007 
1008 	return bnx2x_e3b0_sp_get_pri_cli_reg(cos, pbf_cos_offset, pri_set,
1009 		pbf_pri_offset, 3);
1010 
1011 }
1012 
1013 /******************************************************************************
1014 * Description:
1015 *	Calculate and set the SP (ARB_PRIORITY_CLIENT) NIG and PBF registers
1016 *	according to sp_pri_to_cos.(which COS has higher priority)
1017 *.
1018 ******************************************************************************/
bnx2x_ets_e3b0_sp_set_pri_cli_reg(const struct link_params * params,u8 * sp_pri_to_cos)1019 static int bnx2x_ets_e3b0_sp_set_pri_cli_reg(const struct link_params *params,
1020 					     u8 *sp_pri_to_cos)
1021 {
1022 	struct bnx2x *bp = params->bp;
1023 	u8 i = 0;
1024 	const u8 port = params->port;
1025 	/* MCP Dbg0 and dbg1 are always with higher strict pri*/
1026 	u64 pri_cli_nig = 0x210;
1027 	u32 pri_cli_pbf = 0x0;
1028 	u8 pri_set = 0;
1029 	u8 pri_bitmask = 0;
1030 	const u8 max_num_of_cos = (port) ? DCBX_E3B0_MAX_NUM_COS_PORT1 :
1031 		DCBX_E3B0_MAX_NUM_COS_PORT0;
1032 
1033 	u8 cos_bit_to_set = (1 << max_num_of_cos) - 1;
1034 
1035 	/* Set all the strict priority first */
1036 	for (i = 0; i < max_num_of_cos; i++) {
1037 		if (sp_pri_to_cos[i] != DCBX_INVALID_COS) {
1038 			if (sp_pri_to_cos[i] >= DCBX_MAX_NUM_COS) {
1039 				DP(NETIF_MSG_LINK,
1040 					   "bnx2x_ets_e3b0_sp_set_pri_cli_reg "
1041 					   "invalid cos entry\n");
1042 				return -EINVAL;
1043 			}
1044 
1045 			pri_cli_nig |= bnx2x_e3b0_sp_get_pri_cli_reg_nig(
1046 			    sp_pri_to_cos[i], pri_set);
1047 
1048 			pri_cli_pbf |= bnx2x_e3b0_sp_get_pri_cli_reg_pbf(
1049 			    sp_pri_to_cos[i], pri_set);
1050 			pri_bitmask = 1 << sp_pri_to_cos[i];
1051 			/* COS is used remove it from bitmap.*/
1052 			if (!(pri_bitmask & cos_bit_to_set)) {
1053 				DP(NETIF_MSG_LINK,
1054 					"bnx2x_ets_e3b0_sp_set_pri_cli_reg "
1055 					"invalid There can't be two COS's with"
1056 					" the same strict pri\n");
1057 				return -EINVAL;
1058 			}
1059 			cos_bit_to_set &= ~pri_bitmask;
1060 			pri_set++;
1061 		}
1062 	}
1063 
1064 	/* Set all the Non strict priority i= COS*/
1065 	for (i = 0; i < max_num_of_cos; i++) {
1066 		pri_bitmask = 1 << i;
1067 		/* Check if COS was already used for SP */
1068 		if (pri_bitmask & cos_bit_to_set) {
1069 			/* COS wasn't used for SP */
1070 			pri_cli_nig |= bnx2x_e3b0_sp_get_pri_cli_reg_nig(
1071 			    i, pri_set);
1072 
1073 			pri_cli_pbf |= bnx2x_e3b0_sp_get_pri_cli_reg_pbf(
1074 			    i, pri_set);
1075 			/* COS is used remove it from bitmap.*/
1076 			cos_bit_to_set &= ~pri_bitmask;
1077 			pri_set++;
1078 		}
1079 	}
1080 
1081 	if (pri_set != max_num_of_cos) {
1082 		DP(NETIF_MSG_LINK, "bnx2x_ets_e3b0_sp_set_pri_cli_reg not all "
1083 				   "entries were set\n");
1084 		return -EINVAL;
1085 	}
1086 
1087 	if (port) {
1088 		/* Only 6 usable clients*/
1089 		REG_WR(bp, NIG_REG_P1_TX_ARB_PRIORITY_CLIENT2_LSB,
1090 		       (u32)pri_cli_nig);
1091 
1092 		REG_WR(bp, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P1 , pri_cli_pbf);
1093 	} else {
1094 		/* Only 9 usable clients*/
1095 		const u32 pri_cli_nig_lsb = (u32) (pri_cli_nig);
1096 		const u32 pri_cli_nig_msb = (u32) ((pri_cli_nig >> 32) & 0xF);
1097 
1098 		REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_LSB,
1099 		       pri_cli_nig_lsb);
1100 		REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT2_MSB,
1101 		       pri_cli_nig_msb);
1102 
1103 		REG_WR(bp, PBF_REG_ETS_ARB_PRIORITY_CLIENT_P0 , pri_cli_pbf);
1104 	}
1105 	return 0;
1106 }
1107 
1108 /******************************************************************************
1109 * Description:
1110 *	Configure the COS to ETS according to BW and SP settings.
1111 ******************************************************************************/
bnx2x_ets_e3b0_config(const struct link_params * params,const struct link_vars * vars,struct bnx2x_ets_params * ets_params)1112 int bnx2x_ets_e3b0_config(const struct link_params *params,
1113 			 const struct link_vars *vars,
1114 			 struct bnx2x_ets_params *ets_params)
1115 {
1116 	struct bnx2x *bp = params->bp;
1117 	int bnx2x_status = 0;
1118 	const u8 port = params->port;
1119 	u16 total_bw = 0;
1120 	const u32 min_w_val_nig = bnx2x_ets_get_min_w_val_nig(vars);
1121 	const u32 min_w_val_pbf = ETS_E3B0_PBF_MIN_W_VAL;
1122 	u8 cos_bw_bitmap = 0;
1123 	u8 cos_sp_bitmap = 0;
1124 	u8 sp_pri_to_cos[DCBX_MAX_NUM_COS] = {0};
1125 	const u8 max_num_of_cos = (port) ? DCBX_E3B0_MAX_NUM_COS_PORT1 :
1126 		DCBX_E3B0_MAX_NUM_COS_PORT0;
1127 	u8 cos_entry = 0;
1128 
1129 	if (!CHIP_IS_E3B0(bp)) {
1130 		DP(NETIF_MSG_LINK,
1131 		   "bnx2x_ets_e3b0_disabled the chip isn't E3B0\n");
1132 		return -EINVAL;
1133 	}
1134 
1135 	if ((ets_params->num_of_cos > max_num_of_cos)) {
1136 		DP(NETIF_MSG_LINK, "bnx2x_ets_E3B0_config the number of COS "
1137 				   "isn't supported\n");
1138 		return -EINVAL;
1139 	}
1140 
1141 	/* Prepare sp strict priority parameters*/
1142 	bnx2x_ets_e3b0_sp_pri_to_cos_init(sp_pri_to_cos);
1143 
1144 	/* Prepare BW parameters*/
1145 	bnx2x_status = bnx2x_ets_e3b0_get_total_bw(params, ets_params,
1146 						   &total_bw);
1147 	if (bnx2x_status) {
1148 		DP(NETIF_MSG_LINK,
1149 		   "bnx2x_ets_E3B0_config get_total_bw failed\n");
1150 		return -EINVAL;
1151 	}
1152 
1153 	/*
1154 	 * Upper bound is set according to current link speed (min_w_val
1155 	 * should be the same for upper bound and COS credit val).
1156 	 */
1157 	bnx2x_ets_e3b0_set_credit_upper_bound_nig(params, min_w_val_nig);
1158 	bnx2x_ets_e3b0_set_credit_upper_bound_pbf(params, min_w_val_pbf);
1159 
1160 
1161 	for (cos_entry = 0; cos_entry < ets_params->num_of_cos; cos_entry++) {
1162 		if (bnx2x_cos_state_bw == ets_params->cos[cos_entry].state) {
1163 			cos_bw_bitmap |= (1 << cos_entry);
1164 			/*
1165 			 * The function also sets the BW in HW(not the mappin
1166 			 * yet)
1167 			 */
1168 			bnx2x_status = bnx2x_ets_e3b0_set_cos_bw(
1169 				bp, cos_entry, min_w_val_nig, min_w_val_pbf,
1170 				total_bw,
1171 				ets_params->cos[cos_entry].params.bw_params.bw,
1172 				 port);
1173 		} else if (bnx2x_cos_state_strict ==
1174 			ets_params->cos[cos_entry].state){
1175 			cos_sp_bitmap |= (1 << cos_entry);
1176 
1177 			bnx2x_status = bnx2x_ets_e3b0_sp_pri_to_cos_set(
1178 				params,
1179 				sp_pri_to_cos,
1180 				ets_params->cos[cos_entry].params.sp_params.pri,
1181 				cos_entry);
1182 
1183 		} else {
1184 			DP(NETIF_MSG_LINK,
1185 			   "bnx2x_ets_e3b0_config cos state not valid\n");
1186 			return -EINVAL;
1187 		}
1188 		if (bnx2x_status) {
1189 			DP(NETIF_MSG_LINK,
1190 			   "bnx2x_ets_e3b0_config set cos bw failed\n");
1191 			return bnx2x_status;
1192 		}
1193 	}
1194 
1195 	/* Set SP register (which COS has higher priority) */
1196 	bnx2x_status = bnx2x_ets_e3b0_sp_set_pri_cli_reg(params,
1197 							 sp_pri_to_cos);
1198 
1199 	if (bnx2x_status) {
1200 		DP(NETIF_MSG_LINK,
1201 		   "bnx2x_ets_E3B0_config set_pri_cli_reg failed\n");
1202 		return bnx2x_status;
1203 	}
1204 
1205 	/* Set client mapping of BW and strict */
1206 	bnx2x_status = bnx2x_ets_e3b0_cli_map(params, ets_params,
1207 					      cos_sp_bitmap,
1208 					      cos_bw_bitmap);
1209 
1210 	if (bnx2x_status) {
1211 		DP(NETIF_MSG_LINK, "bnx2x_ets_E3B0_config SP failed\n");
1212 		return bnx2x_status;
1213 	}
1214 	return 0;
1215 }
bnx2x_ets_bw_limit_common(const struct link_params * params)1216 static void bnx2x_ets_bw_limit_common(const struct link_params *params)
1217 {
1218 	/* ETS disabled configuration */
1219 	struct bnx2x *bp = params->bp;
1220 	DP(NETIF_MSG_LINK, "ETS enabled BW limit configuration\n");
1221 	/*
1222 	 * defines which entries (clients) are subjected to WFQ arbitration
1223 	 * COS0 0x8
1224 	 * COS1 0x10
1225 	 */
1226 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_SUBJECT2WFQ, 0x18);
1227 	/*
1228 	 * mapping between the ARB_CREDIT_WEIGHT registers and actual
1229 	 * client numbers (WEIGHT_0 does not actually have to represent
1230 	 * client 0)
1231 	 *    PRI4    |    PRI3    |    PRI2    |    PRI1    |    PRI0
1232 	 *  cos1-001     cos0-000     dbg1-100     dbg0-011     MCP-010
1233 	 */
1234 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_CREDIT_MAP, 0x111A);
1235 
1236 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_0,
1237 	       ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
1238 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_UPPER_BOUND_1,
1239 	       ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
1240 
1241 	/* ETS mode enabled*/
1242 	REG_WR(bp, PBF_REG_ETS_ENABLED, 1);
1243 
1244 	/* Defines the number of consecutive slots for the strict priority */
1245 	REG_WR(bp, PBF_REG_NUM_STRICT_ARB_SLOTS, 0);
1246 	/*
1247 	 * Bitmap of 5bits length. Each bit specifies whether the entry behaves
1248 	 * as strict.  Bits 0,1,2 - debug and management entries, 3 - COS0
1249 	 * entry, 4 - COS1 entry.
1250 	 * COS1 | COS0 | DEBUG21 | DEBUG0 | MGMT
1251 	 * bit4   bit3	  bit2     bit1	   bit0
1252 	 * MCP and debug are strict
1253 	 */
1254 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x7);
1255 
1256 	/* Upper bound that COS0_WEIGHT can reach in the WFQ arbiter.*/
1257 	REG_WR(bp, PBF_REG_COS0_UPPER_BOUND,
1258 	       ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
1259 	REG_WR(bp, PBF_REG_COS1_UPPER_BOUND,
1260 	       ETS_BW_LIMIT_CREDIT_UPPER_BOUND);
1261 }
1262 
bnx2x_ets_bw_limit(const struct link_params * params,const u32 cos0_bw,const u32 cos1_bw)1263 void bnx2x_ets_bw_limit(const struct link_params *params, const u32 cos0_bw,
1264 			const u32 cos1_bw)
1265 {
1266 	/* ETS disabled configuration*/
1267 	struct bnx2x *bp = params->bp;
1268 	const u32 total_bw = cos0_bw + cos1_bw;
1269 	u32 cos0_credit_weight = 0;
1270 	u32 cos1_credit_weight = 0;
1271 
1272 	DP(NETIF_MSG_LINK, "ETS enabled BW limit configuration\n");
1273 
1274 	if ((!total_bw) ||
1275 	    (!cos0_bw) ||
1276 	    (!cos1_bw)) {
1277 		DP(NETIF_MSG_LINK, "Total BW can't be zero\n");
1278 		return;
1279 	}
1280 
1281 	cos0_credit_weight = (cos0_bw * ETS_BW_LIMIT_CREDIT_WEIGHT)/
1282 		total_bw;
1283 	cos1_credit_weight = (cos1_bw * ETS_BW_LIMIT_CREDIT_WEIGHT)/
1284 		total_bw;
1285 
1286 	bnx2x_ets_bw_limit_common(params);
1287 
1288 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_0, cos0_credit_weight);
1289 	REG_WR(bp, NIG_REG_P0_TX_ARB_CREDIT_WEIGHT_1, cos1_credit_weight);
1290 
1291 	REG_WR(bp, PBF_REG_COS0_WEIGHT, cos0_credit_weight);
1292 	REG_WR(bp, PBF_REG_COS1_WEIGHT, cos1_credit_weight);
1293 }
1294 
bnx2x_ets_strict(const struct link_params * params,const u8 strict_cos)1295 int bnx2x_ets_strict(const struct link_params *params, const u8 strict_cos)
1296 {
1297 	/* ETS disabled configuration*/
1298 	struct bnx2x *bp = params->bp;
1299 	u32 val	= 0;
1300 
1301 	DP(NETIF_MSG_LINK, "ETS enabled strict configuration\n");
1302 	/*
1303 	 * Bitmap of 5bits length. Each bit specifies whether the entry behaves
1304 	 * as strict.  Bits 0,1,2 - debug and management entries,
1305 	 * 3 - COS0 entry, 4 - COS1 entry.
1306 	 *  COS1 | COS0 | DEBUG21 | DEBUG0 | MGMT
1307 	 *  bit4   bit3	  bit2      bit1     bit0
1308 	 * MCP and debug are strict
1309 	 */
1310 	REG_WR(bp, NIG_REG_P0_TX_ARB_CLIENT_IS_STRICT, 0x1F);
1311 	/*
1312 	 * For strict priority entries defines the number of consecutive slots
1313 	 * for the highest priority.
1314 	 */
1315 	REG_WR(bp, NIG_REG_P0_TX_ARB_NUM_STRICT_ARB_SLOTS, 0x100);
1316 	/* ETS mode disable */
1317 	REG_WR(bp, PBF_REG_ETS_ENABLED, 0);
1318 	/* Defines the number of consecutive slots for the strict priority */
1319 	REG_WR(bp, PBF_REG_NUM_STRICT_ARB_SLOTS, 0x100);
1320 
1321 	/* Defines the number of consecutive slots for the strict priority */
1322 	REG_WR(bp, PBF_REG_HIGH_PRIORITY_COS_NUM, strict_cos);
1323 
1324 	/*
1325 	 * mapping between entry  priority to client number (0,1,2 -debug and
1326 	 * management clients, 3 - COS0 client, 4 - COS client)(HIGHEST)
1327 	 * 3bits client num.
1328 	 *   PRI4    |    PRI3    |    PRI2    |    PRI1    |    PRI0
1329 	 * dbg0-010     dbg1-001     cos1-100     cos0-011     MCP-000
1330 	 * dbg0-010     dbg1-001     cos0-011     cos1-100     MCP-000
1331 	 */
1332 	val = (!strict_cos) ? 0x2318 : 0x22E0;
1333 	REG_WR(bp, NIG_REG_P0_TX_ARB_PRIORITY_CLIENT, val);
1334 
1335 	return 0;
1336 }
1337 /******************************************************************/
1338 /*			PFC section				  */
1339 /******************************************************************/
bnx2x_update_pfc_xmac(struct link_params * params,struct link_vars * vars,u8 is_lb)1340 static void bnx2x_update_pfc_xmac(struct link_params *params,
1341 				  struct link_vars *vars,
1342 				  u8 is_lb)
1343 {
1344 	struct bnx2x *bp = params->bp;
1345 	u32 xmac_base;
1346 	u32 pause_val, pfc0_val, pfc1_val;
1347 
1348 	/* XMAC base adrr */
1349 	xmac_base = (params->port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
1350 
1351 	/* Initialize pause and pfc registers */
1352 	pause_val = 0x18000;
1353 	pfc0_val = 0xFFFF8000;
1354 	pfc1_val = 0x2;
1355 
1356 	/* No PFC support */
1357 	if (!(params->feature_config_flags &
1358 	      FEATURE_CONFIG_PFC_ENABLED)) {
1359 
1360 		/*
1361 		 * RX flow control - Process pause frame in receive direction
1362 		 */
1363 		if (vars->flow_ctrl & BNX2X_FLOW_CTRL_RX)
1364 			pause_val |= XMAC_PAUSE_CTRL_REG_RX_PAUSE_EN;
1365 
1366 		/*
1367 		 * TX flow control - Send pause packet when buffer is full
1368 		 */
1369 		if (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX)
1370 			pause_val |= XMAC_PAUSE_CTRL_REG_TX_PAUSE_EN;
1371 	} else {/* PFC support */
1372 		pfc1_val |= XMAC_PFC_CTRL_HI_REG_PFC_REFRESH_EN |
1373 			XMAC_PFC_CTRL_HI_REG_PFC_STATS_EN |
1374 			XMAC_PFC_CTRL_HI_REG_RX_PFC_EN |
1375 			XMAC_PFC_CTRL_HI_REG_TX_PFC_EN;
1376 	}
1377 
1378 	/* Write pause and PFC registers */
1379 	REG_WR(bp, xmac_base + XMAC_REG_PAUSE_CTRL, pause_val);
1380 	REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL, pfc0_val);
1381 	REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL_HI, pfc1_val);
1382 
1383 
1384 	/* Set MAC address for source TX Pause/PFC frames */
1385 	REG_WR(bp, xmac_base + XMAC_REG_CTRL_SA_LO,
1386 	       ((params->mac_addr[2] << 24) |
1387 		(params->mac_addr[3] << 16) |
1388 		(params->mac_addr[4] << 8) |
1389 		(params->mac_addr[5])));
1390 	REG_WR(bp, xmac_base + XMAC_REG_CTRL_SA_HI,
1391 	       ((params->mac_addr[0] << 8) |
1392 		(params->mac_addr[1])));
1393 
1394 	udelay(30);
1395 }
1396 
1397 
bnx2x_emac_get_pfc_stat(struct link_params * params,u32 pfc_frames_sent[2],u32 pfc_frames_received[2])1398 static void bnx2x_emac_get_pfc_stat(struct link_params *params,
1399 				    u32 pfc_frames_sent[2],
1400 				    u32 pfc_frames_received[2])
1401 {
1402 	/* Read pfc statistic */
1403 	struct bnx2x *bp = params->bp;
1404 	u32 emac_base = params->port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
1405 	u32 val_xon = 0;
1406 	u32 val_xoff = 0;
1407 
1408 	DP(NETIF_MSG_LINK, "pfc statistic read from EMAC\n");
1409 
1410 	/* PFC received frames */
1411 	val_xoff = REG_RD(bp, emac_base +
1412 				EMAC_REG_RX_PFC_STATS_XOFF_RCVD);
1413 	val_xoff &= EMAC_REG_RX_PFC_STATS_XOFF_RCVD_COUNT;
1414 	val_xon = REG_RD(bp, emac_base + EMAC_REG_RX_PFC_STATS_XON_RCVD);
1415 	val_xon &= EMAC_REG_RX_PFC_STATS_XON_RCVD_COUNT;
1416 
1417 	pfc_frames_received[0] = val_xon + val_xoff;
1418 
1419 	/* PFC received sent */
1420 	val_xoff = REG_RD(bp, emac_base +
1421 				EMAC_REG_RX_PFC_STATS_XOFF_SENT);
1422 	val_xoff &= EMAC_REG_RX_PFC_STATS_XOFF_SENT_COUNT;
1423 	val_xon = REG_RD(bp, emac_base + EMAC_REG_RX_PFC_STATS_XON_SENT);
1424 	val_xon &= EMAC_REG_RX_PFC_STATS_XON_SENT_COUNT;
1425 
1426 	pfc_frames_sent[0] = val_xon + val_xoff;
1427 }
1428 
1429 /* Read pfc statistic*/
bnx2x_pfc_statistic(struct link_params * params,struct link_vars * vars,u32 pfc_frames_sent[2],u32 pfc_frames_received[2])1430 void bnx2x_pfc_statistic(struct link_params *params, struct link_vars *vars,
1431 			 u32 pfc_frames_sent[2],
1432 			 u32 pfc_frames_received[2])
1433 {
1434 	/* Read pfc statistic */
1435 	struct bnx2x *bp = params->bp;
1436 
1437 	DP(NETIF_MSG_LINK, "pfc statistic\n");
1438 
1439 	if (!vars->link_up)
1440 		return;
1441 
1442 	if (vars->mac_type == MAC_TYPE_EMAC) {
1443 		DP(NETIF_MSG_LINK, "About to read PFC stats from EMAC\n");
1444 		bnx2x_emac_get_pfc_stat(params, pfc_frames_sent,
1445 					pfc_frames_received);
1446 	}
1447 }
1448 /******************************************************************/
1449 /*			MAC/PBF section				  */
1450 /******************************************************************/
bnx2x_set_mdio_clk(struct bnx2x * bp,u32 chip_id,u8 port)1451 static void bnx2x_set_mdio_clk(struct bnx2x *bp, u32 chip_id, u8 port)
1452 {
1453 	u32 mode, emac_base;
1454 	/**
1455 	 * Set clause 45 mode, slow down the MDIO clock to 2.5MHz
1456 	 * (a value of 49==0x31) and make sure that the AUTO poll is off
1457 	 */
1458 
1459 	if (CHIP_IS_E2(bp))
1460 		emac_base = GRCBASE_EMAC0;
1461 	else
1462 		emac_base = (port) ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
1463 	mode = REG_RD(bp, emac_base + EMAC_REG_EMAC_MDIO_MODE);
1464 	mode &= ~(EMAC_MDIO_MODE_AUTO_POLL |
1465 		  EMAC_MDIO_MODE_CLOCK_CNT);
1466 	if (USES_WARPCORE(bp))
1467 		mode |= (74L << EMAC_MDIO_MODE_CLOCK_CNT_BITSHIFT);
1468 	else
1469 		mode |= (49L << EMAC_MDIO_MODE_CLOCK_CNT_BITSHIFT);
1470 
1471 	mode |= (EMAC_MDIO_MODE_CLAUSE_45);
1472 	REG_WR(bp, emac_base + EMAC_REG_EMAC_MDIO_MODE, mode);
1473 
1474 	udelay(40);
1475 }
bnx2x_is_4_port_mode(struct bnx2x * bp)1476 static u8 bnx2x_is_4_port_mode(struct bnx2x *bp)
1477 {
1478 	u32 port4mode_ovwr_val;
1479 	/* Check 4-port override enabled */
1480 	port4mode_ovwr_val = REG_RD(bp, MISC_REG_PORT4MODE_EN_OVWR);
1481 	if (port4mode_ovwr_val & (1<<0)) {
1482 		/* Return 4-port mode override value */
1483 		return ((port4mode_ovwr_val & (1<<1)) == (1<<1));
1484 	}
1485 	/* Return 4-port mode from input pin */
1486 	return (u8)REG_RD(bp, MISC_REG_PORT4MODE_EN);
1487 }
1488 
bnx2x_emac_init(struct link_params * params,struct link_vars * vars)1489 static void bnx2x_emac_init(struct link_params *params,
1490 			    struct link_vars *vars)
1491 {
1492 	/* reset and unreset the emac core */
1493 	struct bnx2x *bp = params->bp;
1494 	u8 port = params->port;
1495 	u32 emac_base = port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
1496 	u32 val;
1497 	u16 timeout;
1498 
1499 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
1500 	       (MISC_REGISTERS_RESET_REG_2_RST_EMAC0_HARD_CORE << port));
1501 	udelay(5);
1502 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
1503 	       (MISC_REGISTERS_RESET_REG_2_RST_EMAC0_HARD_CORE << port));
1504 
1505 	/* init emac - use read-modify-write */
1506 	/* self clear reset */
1507 	val = REG_RD(bp, emac_base + EMAC_REG_EMAC_MODE);
1508 	EMAC_WR(bp, EMAC_REG_EMAC_MODE, (val | EMAC_MODE_RESET));
1509 
1510 	timeout = 200;
1511 	do {
1512 		val = REG_RD(bp, emac_base + EMAC_REG_EMAC_MODE);
1513 		DP(NETIF_MSG_LINK, "EMAC reset reg is %u\n", val);
1514 		if (!timeout) {
1515 			DP(NETIF_MSG_LINK, "EMAC timeout!\n");
1516 			return;
1517 		}
1518 		timeout--;
1519 	} while (val & EMAC_MODE_RESET);
1520 	bnx2x_set_mdio_clk(bp, params->chip_id, port);
1521 	/* Set mac address */
1522 	val = ((params->mac_addr[0] << 8) |
1523 		params->mac_addr[1]);
1524 	EMAC_WR(bp, EMAC_REG_EMAC_MAC_MATCH, val);
1525 
1526 	val = ((params->mac_addr[2] << 24) |
1527 	       (params->mac_addr[3] << 16) |
1528 	       (params->mac_addr[4] << 8) |
1529 		params->mac_addr[5]);
1530 	EMAC_WR(bp, EMAC_REG_EMAC_MAC_MATCH + 4, val);
1531 }
1532 
bnx2x_set_xumac_nig(struct link_params * params,u16 tx_pause_en,u8 enable)1533 static void bnx2x_set_xumac_nig(struct link_params *params,
1534 				u16 tx_pause_en,
1535 				u8 enable)
1536 {
1537 	struct bnx2x *bp = params->bp;
1538 
1539 	REG_WR(bp, params->port ? NIG_REG_P1_MAC_IN_EN : NIG_REG_P0_MAC_IN_EN,
1540 	       enable);
1541 	REG_WR(bp, params->port ? NIG_REG_P1_MAC_OUT_EN : NIG_REG_P0_MAC_OUT_EN,
1542 	       enable);
1543 	REG_WR(bp, params->port ? NIG_REG_P1_MAC_PAUSE_OUT_EN :
1544 	       NIG_REG_P0_MAC_PAUSE_OUT_EN, tx_pause_en);
1545 }
1546 
bnx2x_umac_disable(struct link_params * params)1547 static void bnx2x_umac_disable(struct link_params *params)
1548 {
1549 	u32 umac_base = params->port ? GRCBASE_UMAC1 : GRCBASE_UMAC0;
1550 	struct bnx2x *bp = params->bp;
1551 	if (!(REG_RD(bp, MISC_REG_RESET_REG_2) &
1552 		   (MISC_REGISTERS_RESET_REG_2_UMAC0 << params->port)))
1553 		return;
1554 
1555 	/* Disable RX and TX */
1556 	REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, 0);
1557 }
1558 
bnx2x_umac_enable(struct link_params * params,struct link_vars * vars,u8 lb)1559 static void bnx2x_umac_enable(struct link_params *params,
1560 			    struct link_vars *vars, u8 lb)
1561 {
1562 	u32 val;
1563 	u32 umac_base = params->port ? GRCBASE_UMAC1 : GRCBASE_UMAC0;
1564 	struct bnx2x *bp = params->bp;
1565 	/* Reset UMAC */
1566 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
1567 	       (MISC_REGISTERS_RESET_REG_2_UMAC0 << params->port));
1568 	usleep_range(1000, 1000);
1569 
1570 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
1571 	       (MISC_REGISTERS_RESET_REG_2_UMAC0 << params->port));
1572 
1573 	DP(NETIF_MSG_LINK, "enabling UMAC\n");
1574 
1575 	/**
1576 	 * This register determines on which events the MAC will assert
1577 	 * error on the i/f to the NIG along w/ EOP.
1578 	 */
1579 
1580 	/**
1581 	 * BD REG_WR(bp, NIG_REG_P0_MAC_RSV_ERR_MASK +
1582 	 * params->port*0x14,      0xfffff.
1583 	 */
1584 	/* This register opens the gate for the UMAC despite its name */
1585 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_PORT + params->port*4, 1);
1586 
1587 	val = UMAC_COMMAND_CONFIG_REG_PROMIS_EN |
1588 		UMAC_COMMAND_CONFIG_REG_PAD_EN |
1589 		UMAC_COMMAND_CONFIG_REG_SW_RESET |
1590 		UMAC_COMMAND_CONFIG_REG_NO_LGTH_CHECK;
1591 	switch (vars->line_speed) {
1592 	case SPEED_10:
1593 		val |= (0<<2);
1594 		break;
1595 	case SPEED_100:
1596 		val |= (1<<2);
1597 		break;
1598 	case SPEED_1000:
1599 		val |= (2<<2);
1600 		break;
1601 	case SPEED_2500:
1602 		val |= (3<<2);
1603 		break;
1604 	default:
1605 		DP(NETIF_MSG_LINK, "Invalid speed for UMAC %d\n",
1606 			       vars->line_speed);
1607 		break;
1608 	}
1609 	if (!(vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
1610 		val |= UMAC_COMMAND_CONFIG_REG_IGNORE_TX_PAUSE;
1611 
1612 	if (!(vars->flow_ctrl & BNX2X_FLOW_CTRL_RX))
1613 		val |= UMAC_COMMAND_CONFIG_REG_PAUSE_IGNORE;
1614 
1615 	REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, val);
1616 	udelay(50);
1617 
1618 	/* Set MAC address for source TX Pause/PFC frames (under SW reset) */
1619 	REG_WR(bp, umac_base + UMAC_REG_MAC_ADDR0,
1620 	       ((params->mac_addr[2] << 24) |
1621 		(params->mac_addr[3] << 16) |
1622 		(params->mac_addr[4] << 8) |
1623 		(params->mac_addr[5])));
1624 	REG_WR(bp, umac_base + UMAC_REG_MAC_ADDR1,
1625 	       ((params->mac_addr[0] << 8) |
1626 		(params->mac_addr[1])));
1627 
1628 	/* Enable RX and TX */
1629 	val &= ~UMAC_COMMAND_CONFIG_REG_PAD_EN;
1630 	val |= UMAC_COMMAND_CONFIG_REG_TX_ENA |
1631 		UMAC_COMMAND_CONFIG_REG_RX_ENA;
1632 	REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, val);
1633 	udelay(50);
1634 
1635 	/* Remove SW Reset */
1636 	val &= ~UMAC_COMMAND_CONFIG_REG_SW_RESET;
1637 
1638 	/* Check loopback mode */
1639 	if (lb)
1640 		val |= UMAC_COMMAND_CONFIG_REG_LOOP_ENA;
1641 	REG_WR(bp, umac_base + UMAC_REG_COMMAND_CONFIG, val);
1642 
1643 	/*
1644 	 * Maximum Frame Length (RW). Defines a 14-Bit maximum frame
1645 	 * length used by the MAC receive logic to check frames.
1646 	 */
1647 	REG_WR(bp, umac_base + UMAC_REG_MAXFR, 0x2710);
1648 	bnx2x_set_xumac_nig(params,
1649 			    ((vars->flow_ctrl & BNX2X_FLOW_CTRL_TX) != 0), 1);
1650 	vars->mac_type = MAC_TYPE_UMAC;
1651 
1652 }
1653 
1654 /* Define the XMAC mode */
bnx2x_xmac_init(struct link_params * params,u32 max_speed)1655 static void bnx2x_xmac_init(struct link_params *params, u32 max_speed)
1656 {
1657 	struct bnx2x *bp = params->bp;
1658 	u32 is_port4mode = bnx2x_is_4_port_mode(bp);
1659 
1660 	/*
1661 	 * In 4-port mode, need to set the mode only once, so if XMAC is
1662 	 * already out of reset, it means the mode has already been set,
1663 	 * and it must not* reset the XMAC again, since it controls both
1664 	 * ports of the path
1665 	 */
1666 
1667 	if ((CHIP_NUM(bp) == CHIP_NUM_57840) &&
1668 	    (REG_RD(bp, MISC_REG_RESET_REG_2) &
1669 	     MISC_REGISTERS_RESET_REG_2_XMAC)) {
1670 		DP(NETIF_MSG_LINK,
1671 		   "XMAC already out of reset in 4-port mode\n");
1672 		return;
1673 	}
1674 
1675 	/* Hard reset */
1676 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
1677 	       MISC_REGISTERS_RESET_REG_2_XMAC);
1678 	usleep_range(1000, 1000);
1679 
1680 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
1681 	       MISC_REGISTERS_RESET_REG_2_XMAC);
1682 	if (is_port4mode) {
1683 		DP(NETIF_MSG_LINK, "Init XMAC to 2 ports x 10G per path\n");
1684 
1685 		/*  Set the number of ports on the system side to up to 2 */
1686 		REG_WR(bp, MISC_REG_XMAC_CORE_PORT_MODE, 1);
1687 
1688 		/* Set the number of ports on the Warp Core to 10G */
1689 		REG_WR(bp, MISC_REG_XMAC_PHY_PORT_MODE, 3);
1690 	} else {
1691 		/*  Set the number of ports on the system side to 1 */
1692 		REG_WR(bp, MISC_REG_XMAC_CORE_PORT_MODE, 0);
1693 		if (max_speed == SPEED_10000) {
1694 			DP(NETIF_MSG_LINK,
1695 			   "Init XMAC to 10G x 1 port per path\n");
1696 			/* Set the number of ports on the Warp Core to 10G */
1697 			REG_WR(bp, MISC_REG_XMAC_PHY_PORT_MODE, 3);
1698 		} else {
1699 			DP(NETIF_MSG_LINK,
1700 			   "Init XMAC to 20G x 2 ports per path\n");
1701 			/* Set the number of ports on the Warp Core to 20G */
1702 			REG_WR(bp, MISC_REG_XMAC_PHY_PORT_MODE, 1);
1703 		}
1704 	}
1705 	/* Soft reset */
1706 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
1707 	       MISC_REGISTERS_RESET_REG_2_XMAC_SOFT);
1708 	usleep_range(1000, 1000);
1709 
1710 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
1711 	       MISC_REGISTERS_RESET_REG_2_XMAC_SOFT);
1712 
1713 }
1714 
bnx2x_xmac_disable(struct link_params * params)1715 static void bnx2x_xmac_disable(struct link_params *params)
1716 {
1717 	u8 port = params->port;
1718 	struct bnx2x *bp = params->bp;
1719 	u32 pfc_ctrl, xmac_base = (port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
1720 
1721 	if (REG_RD(bp, MISC_REG_RESET_REG_2) &
1722 	    MISC_REGISTERS_RESET_REG_2_XMAC) {
1723 		/*
1724 		 * Send an indication to change the state in the NIG back to XON
1725 		 * Clearing this bit enables the next set of this bit to get
1726 		 * rising edge
1727 		 */
1728 		pfc_ctrl = REG_RD(bp, xmac_base + XMAC_REG_PFC_CTRL_HI);
1729 		REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL_HI,
1730 		       (pfc_ctrl & ~(1<<1)));
1731 		REG_WR(bp, xmac_base + XMAC_REG_PFC_CTRL_HI,
1732 		       (pfc_ctrl | (1<<1)));
1733 		DP(NETIF_MSG_LINK, "Disable XMAC on port %x\n", port);
1734 		REG_WR(bp, xmac_base + XMAC_REG_CTRL, 0);
1735 	}
1736 }
1737 
bnx2x_xmac_enable(struct link_params * params,struct link_vars * vars,u8 lb)1738 static int bnx2x_xmac_enable(struct link_params *params,
1739 			     struct link_vars *vars, u8 lb)
1740 {
1741 	u32 val, xmac_base;
1742 	struct bnx2x *bp = params->bp;
1743 	DP(NETIF_MSG_LINK, "enabling XMAC\n");
1744 
1745 	xmac_base = (params->port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
1746 
1747 	bnx2x_xmac_init(params, vars->line_speed);
1748 
1749 	/*
1750 	 * This register determines on which events the MAC will assert
1751 	 * error on the i/f to the NIG along w/ EOP.
1752 	 */
1753 
1754 	/*
1755 	 * This register tells the NIG whether to send traffic to UMAC
1756 	 * or XMAC
1757 	 */
1758 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_PORT + params->port*4, 0);
1759 
1760 	/* Set Max packet size */
1761 	REG_WR(bp, xmac_base + XMAC_REG_RX_MAX_SIZE, 0x2710);
1762 
1763 	/* CRC append for Tx packets */
1764 	REG_WR(bp, xmac_base + XMAC_REG_TX_CTRL, 0xC800);
1765 
1766 	/* update PFC */
1767 	bnx2x_update_pfc_xmac(params, vars, 0);
1768 
1769 	/* Enable TX and RX */
1770 	val = XMAC_CTRL_REG_TX_EN | XMAC_CTRL_REG_RX_EN;
1771 
1772 	/* Check loopback mode */
1773 	if (lb)
1774 		val |= XMAC_CTRL_REG_LINE_LOCAL_LPBK;
1775 	REG_WR(bp, xmac_base + XMAC_REG_CTRL, val);
1776 	bnx2x_set_xumac_nig(params,
1777 			    ((vars->flow_ctrl & BNX2X_FLOW_CTRL_TX) != 0), 1);
1778 
1779 	vars->mac_type = MAC_TYPE_XMAC;
1780 
1781 	return 0;
1782 }
1783 
bnx2x_emac_enable(struct link_params * params,struct link_vars * vars,u8 lb)1784 static int bnx2x_emac_enable(struct link_params *params,
1785 			     struct link_vars *vars, u8 lb)
1786 {
1787 	struct bnx2x *bp = params->bp;
1788 	u8 port = params->port;
1789 	u32 emac_base = port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
1790 	u32 val;
1791 
1792 	DP(NETIF_MSG_LINK, "enabling EMAC\n");
1793 
1794 	/* Disable BMAC */
1795 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
1796 	       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
1797 
1798 	/* enable emac and not bmac */
1799 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_PORT + port*4, 1);
1800 
1801 	/* ASIC */
1802 	if (vars->phy_flags & PHY_XGXS_FLAG) {
1803 		u32 ser_lane = ((params->lane_config &
1804 				 PORT_HW_CFG_LANE_SWAP_CFG_MASTER_MASK) >>
1805 				PORT_HW_CFG_LANE_SWAP_CFG_MASTER_SHIFT);
1806 
1807 		DP(NETIF_MSG_LINK, "XGXS\n");
1808 		/* select the master lanes (out of 0-3) */
1809 		REG_WR(bp, NIG_REG_XGXS_LANE_SEL_P0 + port*4, ser_lane);
1810 		/* select XGXS */
1811 		REG_WR(bp, NIG_REG_XGXS_SERDES0_MODE_SEL + port*4, 1);
1812 
1813 	} else { /* SerDes */
1814 		DP(NETIF_MSG_LINK, "SerDes\n");
1815 		/* select SerDes */
1816 		REG_WR(bp, NIG_REG_XGXS_SERDES0_MODE_SEL + port*4, 0);
1817 	}
1818 
1819 	bnx2x_bits_en(bp, emac_base + EMAC_REG_EMAC_RX_MODE,
1820 		      EMAC_RX_MODE_RESET);
1821 	bnx2x_bits_en(bp, emac_base + EMAC_REG_EMAC_TX_MODE,
1822 		      EMAC_TX_MODE_RESET);
1823 
1824 	if (CHIP_REV_IS_SLOW(bp)) {
1825 		/* config GMII mode */
1826 		val = REG_RD(bp, emac_base + EMAC_REG_EMAC_MODE);
1827 		EMAC_WR(bp, EMAC_REG_EMAC_MODE, (val | EMAC_MODE_PORT_GMII));
1828 	} else { /* ASIC */
1829 		/* pause enable/disable */
1830 		bnx2x_bits_dis(bp, emac_base + EMAC_REG_EMAC_RX_MODE,
1831 			       EMAC_RX_MODE_FLOW_EN);
1832 
1833 		bnx2x_bits_dis(bp,  emac_base + EMAC_REG_EMAC_TX_MODE,
1834 			       (EMAC_TX_MODE_EXT_PAUSE_EN |
1835 				EMAC_TX_MODE_FLOW_EN));
1836 		if (!(params->feature_config_flags &
1837 		      FEATURE_CONFIG_PFC_ENABLED)) {
1838 			if (vars->flow_ctrl & BNX2X_FLOW_CTRL_RX)
1839 				bnx2x_bits_en(bp, emac_base +
1840 					      EMAC_REG_EMAC_RX_MODE,
1841 					      EMAC_RX_MODE_FLOW_EN);
1842 
1843 			if (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX)
1844 				bnx2x_bits_en(bp, emac_base +
1845 					      EMAC_REG_EMAC_TX_MODE,
1846 					      (EMAC_TX_MODE_EXT_PAUSE_EN |
1847 					       EMAC_TX_MODE_FLOW_EN));
1848 		} else
1849 			bnx2x_bits_en(bp, emac_base + EMAC_REG_EMAC_TX_MODE,
1850 				      EMAC_TX_MODE_FLOW_EN);
1851 	}
1852 
1853 	/* KEEP_VLAN_TAG, promiscuous */
1854 	val = REG_RD(bp, emac_base + EMAC_REG_EMAC_RX_MODE);
1855 	val |= EMAC_RX_MODE_KEEP_VLAN_TAG | EMAC_RX_MODE_PROMISCUOUS;
1856 
1857 	/*
1858 	 * Setting this bit causes MAC control frames (except for pause
1859 	 * frames) to be passed on for processing. This setting has no
1860 	 * affect on the operation of the pause frames. This bit effects
1861 	 * all packets regardless of RX Parser packet sorting logic.
1862 	 * Turn the PFC off to make sure we are in Xon state before
1863 	 * enabling it.
1864 	 */
1865 	EMAC_WR(bp, EMAC_REG_RX_PFC_MODE, 0);
1866 	if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED) {
1867 		DP(NETIF_MSG_LINK, "PFC is enabled\n");
1868 		/* Enable PFC again */
1869 		EMAC_WR(bp, EMAC_REG_RX_PFC_MODE,
1870 			EMAC_REG_RX_PFC_MODE_RX_EN |
1871 			EMAC_REG_RX_PFC_MODE_TX_EN |
1872 			EMAC_REG_RX_PFC_MODE_PRIORITIES);
1873 
1874 		EMAC_WR(bp, EMAC_REG_RX_PFC_PARAM,
1875 			((0x0101 <<
1876 			  EMAC_REG_RX_PFC_PARAM_OPCODE_BITSHIFT) |
1877 			 (0x00ff <<
1878 			  EMAC_REG_RX_PFC_PARAM_PRIORITY_EN_BITSHIFT)));
1879 		val |= EMAC_RX_MODE_KEEP_MAC_CONTROL;
1880 	}
1881 	EMAC_WR(bp, EMAC_REG_EMAC_RX_MODE, val);
1882 
1883 	/* Set Loopback */
1884 	val = REG_RD(bp, emac_base + EMAC_REG_EMAC_MODE);
1885 	if (lb)
1886 		val |= 0x810;
1887 	else
1888 		val &= ~0x810;
1889 	EMAC_WR(bp, EMAC_REG_EMAC_MODE, val);
1890 
1891 	/* enable emac */
1892 	REG_WR(bp, NIG_REG_NIG_EMAC0_EN + port*4, 1);
1893 
1894 	/* enable emac for jumbo packets */
1895 	EMAC_WR(bp, EMAC_REG_EMAC_RX_MTU_SIZE,
1896 		(EMAC_RX_MTU_SIZE_JUMBO_ENA |
1897 		 (ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVREHEAD)));
1898 
1899 	/* strip CRC */
1900 	REG_WR(bp, NIG_REG_NIG_INGRESS_EMAC0_NO_CRC + port*4, 0x1);
1901 
1902 	/* disable the NIG in/out to the bmac */
1903 	REG_WR(bp, NIG_REG_BMAC0_IN_EN + port*4, 0x0);
1904 	REG_WR(bp, NIG_REG_BMAC0_PAUSE_OUT_EN + port*4, 0x0);
1905 	REG_WR(bp, NIG_REG_BMAC0_OUT_EN + port*4, 0x0);
1906 
1907 	/* enable the NIG in/out to the emac */
1908 	REG_WR(bp, NIG_REG_EMAC0_IN_EN + port*4, 0x1);
1909 	val = 0;
1910 	if ((params->feature_config_flags &
1911 	      FEATURE_CONFIG_PFC_ENABLED) ||
1912 	    (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
1913 		val = 1;
1914 
1915 	REG_WR(bp, NIG_REG_EMAC0_PAUSE_OUT_EN + port*4, val);
1916 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_OUT_EN + port*4, 0x1);
1917 
1918 	REG_WR(bp, NIG_REG_BMAC0_REGS_OUT_EN + port*4, 0x0);
1919 
1920 	vars->mac_type = MAC_TYPE_EMAC;
1921 	return 0;
1922 }
1923 
bnx2x_update_pfc_bmac1(struct link_params * params,struct link_vars * vars)1924 static void bnx2x_update_pfc_bmac1(struct link_params *params,
1925 				   struct link_vars *vars)
1926 {
1927 	u32 wb_data[2];
1928 	struct bnx2x *bp = params->bp;
1929 	u32 bmac_addr =  params->port ? NIG_REG_INGRESS_BMAC1_MEM :
1930 		NIG_REG_INGRESS_BMAC0_MEM;
1931 
1932 	u32 val = 0x14;
1933 	if ((!(params->feature_config_flags &
1934 	      FEATURE_CONFIG_PFC_ENABLED)) &&
1935 		(vars->flow_ctrl & BNX2X_FLOW_CTRL_RX))
1936 		/* Enable BigMAC to react on received Pause packets */
1937 		val |= (1<<5);
1938 	wb_data[0] = val;
1939 	wb_data[1] = 0;
1940 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_RX_CONTROL, wb_data, 2);
1941 
1942 	/* tx control */
1943 	val = 0xc0;
1944 	if (!(params->feature_config_flags &
1945 	      FEATURE_CONFIG_PFC_ENABLED) &&
1946 		(vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
1947 		val |= 0x800000;
1948 	wb_data[0] = val;
1949 	wb_data[1] = 0;
1950 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_TX_CONTROL, wb_data, 2);
1951 }
1952 
bnx2x_update_pfc_bmac2(struct link_params * params,struct link_vars * vars,u8 is_lb)1953 static void bnx2x_update_pfc_bmac2(struct link_params *params,
1954 				   struct link_vars *vars,
1955 				   u8 is_lb)
1956 {
1957 	/*
1958 	 * Set rx control: Strip CRC and enable BigMAC to relay
1959 	 * control packets to the system as well
1960 	 */
1961 	u32 wb_data[2];
1962 	struct bnx2x *bp = params->bp;
1963 	u32 bmac_addr = params->port ? NIG_REG_INGRESS_BMAC1_MEM :
1964 		NIG_REG_INGRESS_BMAC0_MEM;
1965 	u32 val = 0x14;
1966 
1967 	if ((!(params->feature_config_flags &
1968 	      FEATURE_CONFIG_PFC_ENABLED)) &&
1969 		(vars->flow_ctrl & BNX2X_FLOW_CTRL_RX))
1970 		/* Enable BigMAC to react on received Pause packets */
1971 		val |= (1<<5);
1972 	wb_data[0] = val;
1973 	wb_data[1] = 0;
1974 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_RX_CONTROL, wb_data, 2);
1975 	udelay(30);
1976 
1977 	/* Tx control */
1978 	val = 0xc0;
1979 	if (!(params->feature_config_flags &
1980 				FEATURE_CONFIG_PFC_ENABLED) &&
1981 	    (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
1982 		val |= 0x800000;
1983 	wb_data[0] = val;
1984 	wb_data[1] = 0;
1985 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_TX_CONTROL, wb_data, 2);
1986 
1987 	if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED) {
1988 		DP(NETIF_MSG_LINK, "PFC is enabled\n");
1989 		/* Enable PFC RX & TX & STATS and set 8 COS  */
1990 		wb_data[0] = 0x0;
1991 		wb_data[0] |= (1<<0);  /* RX */
1992 		wb_data[0] |= (1<<1);  /* TX */
1993 		wb_data[0] |= (1<<2);  /* Force initial Xon */
1994 		wb_data[0] |= (1<<3);  /* 8 cos */
1995 		wb_data[0] |= (1<<5);  /* STATS */
1996 		wb_data[1] = 0;
1997 		REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_PFC_CONTROL,
1998 			    wb_data, 2);
1999 		/* Clear the force Xon */
2000 		wb_data[0] &= ~(1<<2);
2001 	} else {
2002 		DP(NETIF_MSG_LINK, "PFC is disabled\n");
2003 		/* disable PFC RX & TX & STATS and set 8 COS */
2004 		wb_data[0] = 0x8;
2005 		wb_data[1] = 0;
2006 	}
2007 
2008 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_PFC_CONTROL, wb_data, 2);
2009 
2010 	/*
2011 	 * Set Time (based unit is 512 bit time) between automatic
2012 	 * re-sending of PP packets amd enable automatic re-send of
2013 	 * Per-Priroity Packet as long as pp_gen is asserted and
2014 	 * pp_disable is low.
2015 	 */
2016 	val = 0x8000;
2017 	if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED)
2018 		val |= (1<<16); /* enable automatic re-send */
2019 
2020 	wb_data[0] = val;
2021 	wb_data[1] = 0;
2022 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_TX_PAUSE_CONTROL,
2023 		    wb_data, 2);
2024 
2025 	/* mac control */
2026 	val = 0x3; /* Enable RX and TX */
2027 	if (is_lb) {
2028 		val |= 0x4; /* Local loopback */
2029 		DP(NETIF_MSG_LINK, "enable bmac loopback\n");
2030 	}
2031 	/* When PFC enabled, Pass pause frames towards the NIG. */
2032 	if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED)
2033 		val |= ((1<<6)|(1<<5));
2034 
2035 	wb_data[0] = val;
2036 	wb_data[1] = 0;
2037 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_BMAC_CONTROL, wb_data, 2);
2038 }
2039 
2040 /* PFC BRB internal port configuration params */
2041 struct bnx2x_pfc_brb_threshold_val {
2042 	u32 pause_xoff;
2043 	u32 pause_xon;
2044 	u32 full_xoff;
2045 	u32 full_xon;
2046 };
2047 
2048 struct bnx2x_pfc_brb_e3b0_val {
2049 	u32 per_class_guaranty_mode;
2050 	u32 lb_guarantied_hyst;
2051 	u32 full_lb_xoff_th;
2052 	u32 full_lb_xon_threshold;
2053 	u32 lb_guarantied;
2054 	u32 mac_0_class_t_guarantied;
2055 	u32 mac_0_class_t_guarantied_hyst;
2056 	u32 mac_1_class_t_guarantied;
2057 	u32 mac_1_class_t_guarantied_hyst;
2058 };
2059 
2060 struct bnx2x_pfc_brb_th_val {
2061 	struct bnx2x_pfc_brb_threshold_val pauseable_th;
2062 	struct bnx2x_pfc_brb_threshold_val non_pauseable_th;
2063 	struct bnx2x_pfc_brb_threshold_val default_class0;
2064 	struct bnx2x_pfc_brb_threshold_val default_class1;
2065 
2066 };
bnx2x_pfc_brb_get_config_params(struct link_params * params,struct bnx2x_pfc_brb_th_val * config_val)2067 static int bnx2x_pfc_brb_get_config_params(
2068 				struct link_params *params,
2069 				struct bnx2x_pfc_brb_th_val *config_val)
2070 {
2071 	struct bnx2x *bp = params->bp;
2072 	DP(NETIF_MSG_LINK, "Setting PFC BRB configuration\n");
2073 
2074 	config_val->default_class1.pause_xoff = 0;
2075 	config_val->default_class1.pause_xon = 0;
2076 	config_val->default_class1.full_xoff = 0;
2077 	config_val->default_class1.full_xon = 0;
2078 
2079 	if (CHIP_IS_E2(bp)) {
2080 		/*  class0 defaults */
2081 		config_val->default_class0.pause_xoff =
2082 			DEFAULT0_E2_BRB_MAC_PAUSE_XOFF_THR;
2083 		config_val->default_class0.pause_xon =
2084 			DEFAULT0_E2_BRB_MAC_PAUSE_XON_THR;
2085 		config_val->default_class0.full_xoff =
2086 			DEFAULT0_E2_BRB_MAC_FULL_XOFF_THR;
2087 		config_val->default_class0.full_xon =
2088 			DEFAULT0_E2_BRB_MAC_FULL_XON_THR;
2089 		/*  pause able*/
2090 		config_val->pauseable_th.pause_xoff =
2091 			PFC_E2_BRB_MAC_PAUSE_XOFF_THR_PAUSE;
2092 		config_val->pauseable_th.pause_xon =
2093 			PFC_E2_BRB_MAC_PAUSE_XON_THR_PAUSE;
2094 		config_val->pauseable_th.full_xoff =
2095 			PFC_E2_BRB_MAC_FULL_XOFF_THR_PAUSE;
2096 		config_val->pauseable_th.full_xon =
2097 			PFC_E2_BRB_MAC_FULL_XON_THR_PAUSE;
2098 		/* non pause able*/
2099 		config_val->non_pauseable_th.pause_xoff =
2100 			PFC_E2_BRB_MAC_PAUSE_XOFF_THR_NON_PAUSE;
2101 		config_val->non_pauseable_th.pause_xon =
2102 			PFC_E2_BRB_MAC_PAUSE_XON_THR_NON_PAUSE;
2103 		config_val->non_pauseable_th.full_xoff =
2104 			PFC_E2_BRB_MAC_FULL_XOFF_THR_NON_PAUSE;
2105 		config_val->non_pauseable_th.full_xon =
2106 			PFC_E2_BRB_MAC_FULL_XON_THR_NON_PAUSE;
2107 	} else if (CHIP_IS_E3A0(bp)) {
2108 		/*  class0 defaults */
2109 		config_val->default_class0.pause_xoff =
2110 			DEFAULT0_E3A0_BRB_MAC_PAUSE_XOFF_THR;
2111 		config_val->default_class0.pause_xon =
2112 			DEFAULT0_E3A0_BRB_MAC_PAUSE_XON_THR;
2113 		config_val->default_class0.full_xoff =
2114 			DEFAULT0_E3A0_BRB_MAC_FULL_XOFF_THR;
2115 		config_val->default_class0.full_xon =
2116 			DEFAULT0_E3A0_BRB_MAC_FULL_XON_THR;
2117 		/*  pause able */
2118 		config_val->pauseable_th.pause_xoff =
2119 			PFC_E3A0_BRB_MAC_PAUSE_XOFF_THR_PAUSE;
2120 		config_val->pauseable_th.pause_xon =
2121 			PFC_E3A0_BRB_MAC_PAUSE_XON_THR_PAUSE;
2122 		config_val->pauseable_th.full_xoff =
2123 			PFC_E3A0_BRB_MAC_FULL_XOFF_THR_PAUSE;
2124 		config_val->pauseable_th.full_xon =
2125 			PFC_E3A0_BRB_MAC_FULL_XON_THR_PAUSE;
2126 		/* non pause able*/
2127 		config_val->non_pauseable_th.pause_xoff =
2128 			PFC_E3A0_BRB_MAC_PAUSE_XOFF_THR_NON_PAUSE;
2129 		config_val->non_pauseable_th.pause_xon =
2130 			PFC_E3A0_BRB_MAC_PAUSE_XON_THR_NON_PAUSE;
2131 		config_val->non_pauseable_th.full_xoff =
2132 			PFC_E3A0_BRB_MAC_FULL_XOFF_THR_NON_PAUSE;
2133 		config_val->non_pauseable_th.full_xon =
2134 			PFC_E3A0_BRB_MAC_FULL_XON_THR_NON_PAUSE;
2135 	} else if (CHIP_IS_E3B0(bp)) {
2136 		/*  class0 defaults */
2137 		config_val->default_class0.pause_xoff =
2138 			DEFAULT0_E3B0_BRB_MAC_PAUSE_XOFF_THR;
2139 		config_val->default_class0.pause_xon =
2140 		    DEFAULT0_E3B0_BRB_MAC_PAUSE_XON_THR;
2141 		config_val->default_class0.full_xoff =
2142 		    DEFAULT0_E3B0_BRB_MAC_FULL_XOFF_THR;
2143 		config_val->default_class0.full_xon =
2144 		    DEFAULT0_E3B0_BRB_MAC_FULL_XON_THR;
2145 
2146 		if (params->phy[INT_PHY].flags &
2147 		    FLAGS_4_PORT_MODE) {
2148 			config_val->pauseable_th.pause_xoff =
2149 				PFC_E3B0_4P_BRB_MAC_PAUSE_XOFF_THR_PAUSE;
2150 			config_val->pauseable_th.pause_xon =
2151 				PFC_E3B0_4P_BRB_MAC_PAUSE_XON_THR_PAUSE;
2152 			config_val->pauseable_th.full_xoff =
2153 				PFC_E3B0_4P_BRB_MAC_FULL_XOFF_THR_PAUSE;
2154 			config_val->pauseable_th.full_xon =
2155 				PFC_E3B0_4P_BRB_MAC_FULL_XON_THR_PAUSE;
2156 			/* non pause able*/
2157 			config_val->non_pauseable_th.pause_xoff =
2158 			PFC_E3B0_4P_BRB_MAC_PAUSE_XOFF_THR_NON_PAUSE;
2159 			config_val->non_pauseable_th.pause_xon =
2160 			PFC_E3B0_4P_BRB_MAC_PAUSE_XON_THR_NON_PAUSE;
2161 			config_val->non_pauseable_th.full_xoff =
2162 			PFC_E3B0_4P_BRB_MAC_FULL_XOFF_THR_NON_PAUSE;
2163 			config_val->non_pauseable_th.full_xon =
2164 			PFC_E3B0_4P_BRB_MAC_FULL_XON_THR_NON_PAUSE;
2165 		} else {
2166 			config_val->pauseable_th.pause_xoff =
2167 				PFC_E3B0_2P_BRB_MAC_PAUSE_XOFF_THR_PAUSE;
2168 			config_val->pauseable_th.pause_xon =
2169 				PFC_E3B0_2P_BRB_MAC_PAUSE_XON_THR_PAUSE;
2170 			config_val->pauseable_th.full_xoff =
2171 				PFC_E3B0_2P_BRB_MAC_FULL_XOFF_THR_PAUSE;
2172 			config_val->pauseable_th.full_xon =
2173 				PFC_E3B0_2P_BRB_MAC_FULL_XON_THR_PAUSE;
2174 			/* non pause able*/
2175 			config_val->non_pauseable_th.pause_xoff =
2176 				PFC_E3B0_2P_BRB_MAC_PAUSE_XOFF_THR_NON_PAUSE;
2177 			config_val->non_pauseable_th.pause_xon =
2178 				PFC_E3B0_2P_BRB_MAC_PAUSE_XON_THR_NON_PAUSE;
2179 			config_val->non_pauseable_th.full_xoff =
2180 				PFC_E3B0_2P_BRB_MAC_FULL_XOFF_THR_NON_PAUSE;
2181 			config_val->non_pauseable_th.full_xon =
2182 				PFC_E3B0_2P_BRB_MAC_FULL_XON_THR_NON_PAUSE;
2183 		}
2184 	} else
2185 	    return -EINVAL;
2186 
2187 	return 0;
2188 }
2189 
bnx2x_pfc_brb_get_e3b0_config_params(struct link_params * params,struct bnx2x_pfc_brb_e3b0_val * e3b0_val,struct bnx2x_nig_brb_pfc_port_params * pfc_params,const u8 pfc_enabled)2190 static void bnx2x_pfc_brb_get_e3b0_config_params(
2191 		struct link_params *params,
2192 		struct bnx2x_pfc_brb_e3b0_val
2193 		*e3b0_val,
2194 		struct bnx2x_nig_brb_pfc_port_params *pfc_params,
2195 		const u8 pfc_enabled)
2196 {
2197 	if (pfc_enabled && pfc_params) {
2198 		e3b0_val->per_class_guaranty_mode = 1;
2199 		e3b0_val->lb_guarantied_hyst = 80;
2200 
2201 		if (params->phy[INT_PHY].flags &
2202 		    FLAGS_4_PORT_MODE) {
2203 			e3b0_val->full_lb_xoff_th =
2204 				PFC_E3B0_4P_BRB_FULL_LB_XOFF_THR;
2205 			e3b0_val->full_lb_xon_threshold =
2206 				PFC_E3B0_4P_BRB_FULL_LB_XON_THR;
2207 			e3b0_val->lb_guarantied =
2208 				PFC_E3B0_4P_LB_GUART;
2209 			e3b0_val->mac_0_class_t_guarantied =
2210 				PFC_E3B0_4P_BRB_MAC_0_CLASS_T_GUART;
2211 			e3b0_val->mac_0_class_t_guarantied_hyst =
2212 				PFC_E3B0_4P_BRB_MAC_0_CLASS_T_GUART_HYST;
2213 			e3b0_val->mac_1_class_t_guarantied =
2214 				PFC_E3B0_4P_BRB_MAC_1_CLASS_T_GUART;
2215 			e3b0_val->mac_1_class_t_guarantied_hyst =
2216 				PFC_E3B0_4P_BRB_MAC_1_CLASS_T_GUART_HYST;
2217 		} else {
2218 			e3b0_val->full_lb_xoff_th =
2219 				PFC_E3B0_2P_BRB_FULL_LB_XOFF_THR;
2220 			e3b0_val->full_lb_xon_threshold =
2221 				PFC_E3B0_2P_BRB_FULL_LB_XON_THR;
2222 			e3b0_val->mac_0_class_t_guarantied_hyst =
2223 				PFC_E3B0_2P_BRB_MAC_0_CLASS_T_GUART_HYST;
2224 			e3b0_val->mac_1_class_t_guarantied =
2225 				PFC_E3B0_2P_BRB_MAC_1_CLASS_T_GUART;
2226 			e3b0_val->mac_1_class_t_guarantied_hyst =
2227 				PFC_E3B0_2P_BRB_MAC_1_CLASS_T_GUART_HYST;
2228 
2229 			if (pfc_params->cos0_pauseable !=
2230 				pfc_params->cos1_pauseable) {
2231 				/* nonpauseable= Lossy + pauseable = Lossless*/
2232 				e3b0_val->lb_guarantied =
2233 					PFC_E3B0_2P_MIX_PAUSE_LB_GUART;
2234 				e3b0_val->mac_0_class_t_guarantied =
2235 			       PFC_E3B0_2P_MIX_PAUSE_MAC_0_CLASS_T_GUART;
2236 			} else if (pfc_params->cos0_pauseable) {
2237 				/* Lossless +Lossless*/
2238 				e3b0_val->lb_guarantied =
2239 					PFC_E3B0_2P_PAUSE_LB_GUART;
2240 				e3b0_val->mac_0_class_t_guarantied =
2241 				   PFC_E3B0_2P_PAUSE_MAC_0_CLASS_T_GUART;
2242 			} else {
2243 				/* Lossy +Lossy*/
2244 				e3b0_val->lb_guarantied =
2245 					PFC_E3B0_2P_NON_PAUSE_LB_GUART;
2246 				e3b0_val->mac_0_class_t_guarantied =
2247 			       PFC_E3B0_2P_NON_PAUSE_MAC_0_CLASS_T_GUART;
2248 			}
2249 		}
2250 	} else {
2251 		e3b0_val->per_class_guaranty_mode = 0;
2252 		e3b0_val->lb_guarantied_hyst = 0;
2253 		e3b0_val->full_lb_xoff_th =
2254 			DEFAULT_E3B0_BRB_FULL_LB_XOFF_THR;
2255 		e3b0_val->full_lb_xon_threshold =
2256 			DEFAULT_E3B0_BRB_FULL_LB_XON_THR;
2257 		e3b0_val->lb_guarantied =
2258 			DEFAULT_E3B0_LB_GUART;
2259 		e3b0_val->mac_0_class_t_guarantied =
2260 			DEFAULT_E3B0_BRB_MAC_0_CLASS_T_GUART;
2261 		e3b0_val->mac_0_class_t_guarantied_hyst =
2262 			DEFAULT_E3B0_BRB_MAC_0_CLASS_T_GUART_HYST;
2263 		e3b0_val->mac_1_class_t_guarantied =
2264 			DEFAULT_E3B0_BRB_MAC_1_CLASS_T_GUART;
2265 		e3b0_val->mac_1_class_t_guarantied_hyst =
2266 			DEFAULT_E3B0_BRB_MAC_1_CLASS_T_GUART_HYST;
2267 	}
2268 }
bnx2x_update_pfc_brb(struct link_params * params,struct link_vars * vars,struct bnx2x_nig_brb_pfc_port_params * pfc_params)2269 static int bnx2x_update_pfc_brb(struct link_params *params,
2270 				struct link_vars *vars,
2271 				struct bnx2x_nig_brb_pfc_port_params
2272 				*pfc_params)
2273 {
2274 	struct bnx2x *bp = params->bp;
2275 	struct bnx2x_pfc_brb_th_val config_val = { {0} };
2276 	struct bnx2x_pfc_brb_threshold_val *reg_th_config =
2277 		&config_val.pauseable_th;
2278 	struct bnx2x_pfc_brb_e3b0_val e3b0_val = {0};
2279 	const int set_pfc = params->feature_config_flags &
2280 		FEATURE_CONFIG_PFC_ENABLED;
2281 	const u8 pfc_enabled = (set_pfc && pfc_params);
2282 	int bnx2x_status = 0;
2283 	u8 port = params->port;
2284 
2285 	/* default - pause configuration */
2286 	reg_th_config = &config_val.pauseable_th;
2287 	bnx2x_status = bnx2x_pfc_brb_get_config_params(params, &config_val);
2288 	if (bnx2x_status)
2289 		return bnx2x_status;
2290 
2291 	if (pfc_enabled) {
2292 		/* First COS */
2293 		if (pfc_params->cos0_pauseable)
2294 			reg_th_config = &config_val.pauseable_th;
2295 		else
2296 			reg_th_config = &config_val.non_pauseable_th;
2297 	} else
2298 		reg_th_config = &config_val.default_class0;
2299 	/*
2300 	 * The number of free blocks below which the pause signal to class 0
2301 	 * of MAC #n is asserted. n=0,1
2302 	 */
2303 	REG_WR(bp, (port) ? BRB1_REG_PAUSE_0_XOFF_THRESHOLD_1 :
2304 	       BRB1_REG_PAUSE_0_XOFF_THRESHOLD_0 ,
2305 	       reg_th_config->pause_xoff);
2306 	/*
2307 	 * The number of free blocks above which the pause signal to class 0
2308 	 * of MAC #n is de-asserted. n=0,1
2309 	 */
2310 	REG_WR(bp, (port) ? BRB1_REG_PAUSE_0_XON_THRESHOLD_1 :
2311 	       BRB1_REG_PAUSE_0_XON_THRESHOLD_0 , reg_th_config->pause_xon);
2312 	/*
2313 	 * The number of free blocks below which the full signal to class 0
2314 	 * of MAC #n is asserted. n=0,1
2315 	 */
2316 	REG_WR(bp, (port) ? BRB1_REG_FULL_0_XOFF_THRESHOLD_1 :
2317 	       BRB1_REG_FULL_0_XOFF_THRESHOLD_0 , reg_th_config->full_xoff);
2318 	/*
2319 	 * The number of free blocks above which the full signal to class 0
2320 	 * of MAC #n is de-asserted. n=0,1
2321 	 */
2322 	REG_WR(bp, (port) ? BRB1_REG_FULL_0_XON_THRESHOLD_1 :
2323 	       BRB1_REG_FULL_0_XON_THRESHOLD_0 , reg_th_config->full_xon);
2324 
2325 	if (pfc_enabled) {
2326 		/* Second COS */
2327 		if (pfc_params->cos1_pauseable)
2328 			reg_th_config = &config_val.pauseable_th;
2329 		else
2330 			reg_th_config = &config_val.non_pauseable_th;
2331 	} else
2332 		reg_th_config = &config_val.default_class1;
2333 	/*
2334 	 * The number of free blocks below which the pause signal to
2335 	 * class 1 of MAC #n is asserted. n=0,1
2336 	 */
2337 	REG_WR(bp, (port) ? BRB1_REG_PAUSE_1_XOFF_THRESHOLD_1 :
2338 	       BRB1_REG_PAUSE_1_XOFF_THRESHOLD_0,
2339 	       reg_th_config->pause_xoff);
2340 
2341 	/*
2342 	 * The number of free blocks above which the pause signal to
2343 	 * class 1 of MAC #n is de-asserted. n=0,1
2344 	 */
2345 	REG_WR(bp, (port) ? BRB1_REG_PAUSE_1_XON_THRESHOLD_1 :
2346 	       BRB1_REG_PAUSE_1_XON_THRESHOLD_0,
2347 	       reg_th_config->pause_xon);
2348 	/*
2349 	 * The number of free blocks below which the full signal to
2350 	 * class 1 of MAC #n is asserted. n=0,1
2351 	 */
2352 	REG_WR(bp, (port) ? BRB1_REG_FULL_1_XOFF_THRESHOLD_1 :
2353 	       BRB1_REG_FULL_1_XOFF_THRESHOLD_0,
2354 	       reg_th_config->full_xoff);
2355 	/*
2356 	 * The number of free blocks above which the full signal to
2357 	 * class 1 of MAC #n is de-asserted. n=0,1
2358 	 */
2359 	REG_WR(bp, (port) ? BRB1_REG_FULL_1_XON_THRESHOLD_1 :
2360 	       BRB1_REG_FULL_1_XON_THRESHOLD_0,
2361 	       reg_th_config->full_xon);
2362 
2363 	if (CHIP_IS_E3B0(bp)) {
2364 		bnx2x_pfc_brb_get_e3b0_config_params(
2365 			params,
2366 			&e3b0_val,
2367 			pfc_params,
2368 			pfc_enabled);
2369 
2370 		REG_WR(bp, BRB1_REG_PER_CLASS_GUARANTY_MODE,
2371 			   e3b0_val.per_class_guaranty_mode);
2372 
2373 		/*
2374 		 * The hysteresis on the guarantied buffer space for the Lb
2375 		 * port before signaling XON.
2376 		 */
2377 		REG_WR(bp, BRB1_REG_LB_GUARANTIED_HYST,
2378 			   e3b0_val.lb_guarantied_hyst);
2379 
2380 		/*
2381 		 * The number of free blocks below which the full signal to the
2382 		 * LB port is asserted.
2383 		 */
2384 		REG_WR(bp, BRB1_REG_FULL_LB_XOFF_THRESHOLD,
2385 		       e3b0_val.full_lb_xoff_th);
2386 		/*
2387 		 * The number of free blocks above which the full signal to the
2388 		 * LB port is de-asserted.
2389 		 */
2390 		REG_WR(bp, BRB1_REG_FULL_LB_XON_THRESHOLD,
2391 		       e3b0_val.full_lb_xon_threshold);
2392 		/*
2393 		 * The number of blocks guarantied for the MAC #n port. n=0,1
2394 		 */
2395 
2396 		/* The number of blocks guarantied for the LB port.*/
2397 		REG_WR(bp, BRB1_REG_LB_GUARANTIED,
2398 		       e3b0_val.lb_guarantied);
2399 
2400 		/*
2401 		 * The number of blocks guarantied for the MAC #n port.
2402 		 */
2403 		REG_WR(bp, BRB1_REG_MAC_GUARANTIED_0,
2404 		       2 * e3b0_val.mac_0_class_t_guarantied);
2405 		REG_WR(bp, BRB1_REG_MAC_GUARANTIED_1,
2406 		       2 * e3b0_val.mac_1_class_t_guarantied);
2407 		/*
2408 		 * The number of blocks guarantied for class #t in MAC0. t=0,1
2409 		 */
2410 		REG_WR(bp, BRB1_REG_MAC_0_CLASS_0_GUARANTIED,
2411 		       e3b0_val.mac_0_class_t_guarantied);
2412 		REG_WR(bp, BRB1_REG_MAC_0_CLASS_1_GUARANTIED,
2413 		       e3b0_val.mac_0_class_t_guarantied);
2414 		/*
2415 		 * The hysteresis on the guarantied buffer space for class in
2416 		 * MAC0.  t=0,1
2417 		 */
2418 		REG_WR(bp, BRB1_REG_MAC_0_CLASS_0_GUARANTIED_HYST,
2419 		       e3b0_val.mac_0_class_t_guarantied_hyst);
2420 		REG_WR(bp, BRB1_REG_MAC_0_CLASS_1_GUARANTIED_HYST,
2421 		       e3b0_val.mac_0_class_t_guarantied_hyst);
2422 
2423 		/*
2424 		 * The number of blocks guarantied for class #t in MAC1.t=0,1
2425 		 */
2426 		REG_WR(bp, BRB1_REG_MAC_1_CLASS_0_GUARANTIED,
2427 		       e3b0_val.mac_1_class_t_guarantied);
2428 		REG_WR(bp, BRB1_REG_MAC_1_CLASS_1_GUARANTIED,
2429 		       e3b0_val.mac_1_class_t_guarantied);
2430 		/*
2431 		 * The hysteresis on the guarantied buffer space for class #t
2432 		 * in MAC1.  t=0,1
2433 		 */
2434 		REG_WR(bp, BRB1_REG_MAC_1_CLASS_0_GUARANTIED_HYST,
2435 		       e3b0_val.mac_1_class_t_guarantied_hyst);
2436 		REG_WR(bp, BRB1_REG_MAC_1_CLASS_1_GUARANTIED_HYST,
2437 		       e3b0_val.mac_1_class_t_guarantied_hyst);
2438 	}
2439 
2440 	return bnx2x_status;
2441 }
2442 
2443 /******************************************************************************
2444 * Description:
2445 *  This function is needed because NIG ARB_CREDIT_WEIGHT_X are
2446 *  not continues and ARB_CREDIT_WEIGHT_0 + offset is suitable.
2447 ******************************************************************************/
bnx2x_pfc_nig_rx_priority_mask(struct bnx2x * bp,u8 cos_entry,u32 priority_mask,u8 port)2448 int bnx2x_pfc_nig_rx_priority_mask(struct bnx2x *bp,
2449 					      u8 cos_entry,
2450 					      u32 priority_mask, u8 port)
2451 {
2452 	u32 nig_reg_rx_priority_mask_add = 0;
2453 
2454 	switch (cos_entry) {
2455 	case 0:
2456 	     nig_reg_rx_priority_mask_add = (port) ?
2457 		 NIG_REG_P1_RX_COS0_PRIORITY_MASK :
2458 		 NIG_REG_P0_RX_COS0_PRIORITY_MASK;
2459 	     break;
2460 	case 1:
2461 	    nig_reg_rx_priority_mask_add = (port) ?
2462 		NIG_REG_P1_RX_COS1_PRIORITY_MASK :
2463 		NIG_REG_P0_RX_COS1_PRIORITY_MASK;
2464 	    break;
2465 	case 2:
2466 	    nig_reg_rx_priority_mask_add = (port) ?
2467 		NIG_REG_P1_RX_COS2_PRIORITY_MASK :
2468 		NIG_REG_P0_RX_COS2_PRIORITY_MASK;
2469 	    break;
2470 	case 3:
2471 	    if (port)
2472 		return -EINVAL;
2473 	    nig_reg_rx_priority_mask_add = NIG_REG_P0_RX_COS3_PRIORITY_MASK;
2474 	    break;
2475 	case 4:
2476 	    if (port)
2477 		return -EINVAL;
2478 	    nig_reg_rx_priority_mask_add = NIG_REG_P0_RX_COS4_PRIORITY_MASK;
2479 	    break;
2480 	case 5:
2481 	    if (port)
2482 		return -EINVAL;
2483 	    nig_reg_rx_priority_mask_add = NIG_REG_P0_RX_COS5_PRIORITY_MASK;
2484 	    break;
2485 	}
2486 
2487 	REG_WR(bp, nig_reg_rx_priority_mask_add, priority_mask);
2488 
2489 	return 0;
2490 }
bnx2x_update_mng(struct link_params * params,u32 link_status)2491 static void bnx2x_update_mng(struct link_params *params, u32 link_status)
2492 {
2493 	struct bnx2x *bp = params->bp;
2494 
2495 	REG_WR(bp, params->shmem_base +
2496 	       offsetof(struct shmem_region,
2497 			port_mb[params->port].link_status), link_status);
2498 }
2499 
bnx2x_update_pfc_nig(struct link_params * params,struct link_vars * vars,struct bnx2x_nig_brb_pfc_port_params * nig_params)2500 static void bnx2x_update_pfc_nig(struct link_params *params,
2501 		struct link_vars *vars,
2502 		struct bnx2x_nig_brb_pfc_port_params *nig_params)
2503 {
2504 	u32 xcm_mask = 0, ppp_enable = 0, pause_enable = 0, llfc_out_en = 0;
2505 	u32 llfc_enable = 0, xcm_out_en = 0, hwpfc_enable = 0;
2506 	u32 pkt_priority_to_cos = 0;
2507 	struct bnx2x *bp = params->bp;
2508 	u8 port = params->port;
2509 
2510 	int set_pfc = params->feature_config_flags &
2511 		FEATURE_CONFIG_PFC_ENABLED;
2512 	DP(NETIF_MSG_LINK, "updating pfc nig parameters\n");
2513 
2514 	/*
2515 	 * When NIG_LLH0_XCM_MASK_REG_LLHX_XCM_MASK_BCN bit is set
2516 	 * MAC control frames (that are not pause packets)
2517 	 * will be forwarded to the XCM.
2518 	 */
2519 	xcm_mask = REG_RD(bp, port ? NIG_REG_LLH1_XCM_MASK :
2520 			  NIG_REG_LLH0_XCM_MASK);
2521 	/*
2522 	 * nig params will override non PFC params, since it's possible to
2523 	 * do transition from PFC to SAFC
2524 	 */
2525 	if (set_pfc) {
2526 		pause_enable = 0;
2527 		llfc_out_en = 0;
2528 		llfc_enable = 0;
2529 		if (CHIP_IS_E3(bp))
2530 			ppp_enable = 0;
2531 		else
2532 		ppp_enable = 1;
2533 		xcm_mask &= ~(port ? NIG_LLH1_XCM_MASK_REG_LLH1_XCM_MASK_BCN :
2534 				     NIG_LLH0_XCM_MASK_REG_LLH0_XCM_MASK_BCN);
2535 		xcm_out_en = 0;
2536 		hwpfc_enable = 1;
2537 	} else  {
2538 		if (nig_params) {
2539 			llfc_out_en = nig_params->llfc_out_en;
2540 			llfc_enable = nig_params->llfc_enable;
2541 			pause_enable = nig_params->pause_enable;
2542 		} else  /*defaul non PFC mode - PAUSE */
2543 			pause_enable = 1;
2544 
2545 		xcm_mask |= (port ? NIG_LLH1_XCM_MASK_REG_LLH1_XCM_MASK_BCN :
2546 			NIG_LLH0_XCM_MASK_REG_LLH0_XCM_MASK_BCN);
2547 		xcm_out_en = 1;
2548 	}
2549 
2550 	if (CHIP_IS_E3(bp))
2551 		REG_WR(bp, port ? NIG_REG_BRB1_PAUSE_IN_EN :
2552 		       NIG_REG_BRB0_PAUSE_IN_EN, pause_enable);
2553 	REG_WR(bp, port ? NIG_REG_LLFC_OUT_EN_1 :
2554 	       NIG_REG_LLFC_OUT_EN_0, llfc_out_en);
2555 	REG_WR(bp, port ? NIG_REG_LLFC_ENABLE_1 :
2556 	       NIG_REG_LLFC_ENABLE_0, llfc_enable);
2557 	REG_WR(bp, port ? NIG_REG_PAUSE_ENABLE_1 :
2558 	       NIG_REG_PAUSE_ENABLE_0, pause_enable);
2559 
2560 	REG_WR(bp, port ? NIG_REG_PPP_ENABLE_1 :
2561 	       NIG_REG_PPP_ENABLE_0, ppp_enable);
2562 
2563 	REG_WR(bp, port ? NIG_REG_LLH1_XCM_MASK :
2564 	       NIG_REG_LLH0_XCM_MASK, xcm_mask);
2565 
2566 	REG_WR(bp, port ? NIG_REG_LLFC_EGRESS_SRC_ENABLE_1 :
2567 	       NIG_REG_LLFC_EGRESS_SRC_ENABLE_0, 0x7);
2568 
2569 	/* output enable for RX_XCM # IF */
2570 	REG_WR(bp, port ? NIG_REG_XCM1_OUT_EN :
2571 	       NIG_REG_XCM0_OUT_EN, xcm_out_en);
2572 
2573 	/* HW PFC TX enable */
2574 	REG_WR(bp, port ? NIG_REG_P1_HWPFC_ENABLE :
2575 	       NIG_REG_P0_HWPFC_ENABLE, hwpfc_enable);
2576 
2577 	if (nig_params) {
2578 		u8 i = 0;
2579 		pkt_priority_to_cos = nig_params->pkt_priority_to_cos;
2580 
2581 		for (i = 0; i < nig_params->num_of_rx_cos_priority_mask; i++)
2582 			bnx2x_pfc_nig_rx_priority_mask(bp, i,
2583 		nig_params->rx_cos_priority_mask[i], port);
2584 
2585 		REG_WR(bp, port ? NIG_REG_LLFC_HIGH_PRIORITY_CLASSES_1 :
2586 		       NIG_REG_LLFC_HIGH_PRIORITY_CLASSES_0,
2587 		       nig_params->llfc_high_priority_classes);
2588 
2589 		REG_WR(bp, port ? NIG_REG_LLFC_LOW_PRIORITY_CLASSES_1 :
2590 		       NIG_REG_LLFC_LOW_PRIORITY_CLASSES_0,
2591 		       nig_params->llfc_low_priority_classes);
2592 	}
2593 	REG_WR(bp, port ? NIG_REG_P1_PKT_PRIORITY_TO_COS :
2594 	       NIG_REG_P0_PKT_PRIORITY_TO_COS,
2595 	       pkt_priority_to_cos);
2596 }
2597 
bnx2x_update_pfc(struct link_params * params,struct link_vars * vars,struct bnx2x_nig_brb_pfc_port_params * pfc_params)2598 int bnx2x_update_pfc(struct link_params *params,
2599 		      struct link_vars *vars,
2600 		      struct bnx2x_nig_brb_pfc_port_params *pfc_params)
2601 {
2602 	/*
2603 	 * The PFC and pause are orthogonal to one another, meaning when
2604 	 * PFC is enabled, the pause are disabled, and when PFC is
2605 	 * disabled, pause are set according to the pause result.
2606 	 */
2607 	u32 val;
2608 	struct bnx2x *bp = params->bp;
2609 	int bnx2x_status = 0;
2610 	u8 bmac_loopback = (params->loopback_mode == LOOPBACK_BMAC);
2611 
2612 	if (params->feature_config_flags & FEATURE_CONFIG_PFC_ENABLED)
2613 		vars->link_status |= LINK_STATUS_PFC_ENABLED;
2614 	else
2615 		vars->link_status &= ~LINK_STATUS_PFC_ENABLED;
2616 
2617 	bnx2x_update_mng(params, vars->link_status);
2618 
2619 	/* update NIG params */
2620 	bnx2x_update_pfc_nig(params, vars, pfc_params);
2621 
2622 	/* update BRB params */
2623 	bnx2x_status = bnx2x_update_pfc_brb(params, vars, pfc_params);
2624 	if (bnx2x_status)
2625 		return bnx2x_status;
2626 
2627 	if (!vars->link_up)
2628 		return bnx2x_status;
2629 
2630 	DP(NETIF_MSG_LINK, "About to update PFC in BMAC\n");
2631 	if (CHIP_IS_E3(bp))
2632 		bnx2x_update_pfc_xmac(params, vars, 0);
2633 	else {
2634 		val = REG_RD(bp, MISC_REG_RESET_REG_2);
2635 		if ((val &
2636 		     (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << params->port))
2637 		    == 0) {
2638 			DP(NETIF_MSG_LINK, "About to update PFC in EMAC\n");
2639 			bnx2x_emac_enable(params, vars, 0);
2640 			return bnx2x_status;
2641 		}
2642 		if (CHIP_IS_E2(bp))
2643 			bnx2x_update_pfc_bmac2(params, vars, bmac_loopback);
2644 		else
2645 			bnx2x_update_pfc_bmac1(params, vars);
2646 
2647 		val = 0;
2648 		if ((params->feature_config_flags &
2649 		     FEATURE_CONFIG_PFC_ENABLED) ||
2650 		    (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
2651 			val = 1;
2652 		REG_WR(bp, NIG_REG_BMAC0_PAUSE_OUT_EN + params->port*4, val);
2653 	}
2654 	return bnx2x_status;
2655 }
2656 
2657 
bnx2x_bmac1_enable(struct link_params * params,struct link_vars * vars,u8 is_lb)2658 static int bnx2x_bmac1_enable(struct link_params *params,
2659 			      struct link_vars *vars,
2660 			      u8 is_lb)
2661 {
2662 	struct bnx2x *bp = params->bp;
2663 	u8 port = params->port;
2664 	u32 bmac_addr = port ? NIG_REG_INGRESS_BMAC1_MEM :
2665 			       NIG_REG_INGRESS_BMAC0_MEM;
2666 	u32 wb_data[2];
2667 	u32 val;
2668 
2669 	DP(NETIF_MSG_LINK, "Enabling BigMAC1\n");
2670 
2671 	/* XGXS control */
2672 	wb_data[0] = 0x3c;
2673 	wb_data[1] = 0;
2674 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_BMAC_XGXS_CONTROL,
2675 		    wb_data, 2);
2676 
2677 	/* tx MAC SA */
2678 	wb_data[0] = ((params->mac_addr[2] << 24) |
2679 		       (params->mac_addr[3] << 16) |
2680 		       (params->mac_addr[4] << 8) |
2681 			params->mac_addr[5]);
2682 	wb_data[1] = ((params->mac_addr[0] << 8) |
2683 			params->mac_addr[1]);
2684 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_TX_SOURCE_ADDR, wb_data, 2);
2685 
2686 	/* mac control */
2687 	val = 0x3;
2688 	if (is_lb) {
2689 		val |= 0x4;
2690 		DP(NETIF_MSG_LINK, "enable bmac loopback\n");
2691 	}
2692 	wb_data[0] = val;
2693 	wb_data[1] = 0;
2694 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_BMAC_CONTROL, wb_data, 2);
2695 
2696 	/* set rx mtu */
2697 	wb_data[0] = ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVREHEAD;
2698 	wb_data[1] = 0;
2699 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_RX_MAX_SIZE, wb_data, 2);
2700 
2701 	bnx2x_update_pfc_bmac1(params, vars);
2702 
2703 	/* set tx mtu */
2704 	wb_data[0] = ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVREHEAD;
2705 	wb_data[1] = 0;
2706 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_TX_MAX_SIZE, wb_data, 2);
2707 
2708 	/* set cnt max size */
2709 	wb_data[0] = ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVREHEAD;
2710 	wb_data[1] = 0;
2711 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_CNT_MAX_SIZE, wb_data, 2);
2712 
2713 	/* configure safc */
2714 	wb_data[0] = 0x1000200;
2715 	wb_data[1] = 0;
2716 	REG_WR_DMAE(bp, bmac_addr + BIGMAC_REGISTER_RX_LLFC_MSG_FLDS,
2717 		    wb_data, 2);
2718 
2719 	return 0;
2720 }
2721 
bnx2x_bmac2_enable(struct link_params * params,struct link_vars * vars,u8 is_lb)2722 static int bnx2x_bmac2_enable(struct link_params *params,
2723 			      struct link_vars *vars,
2724 			      u8 is_lb)
2725 {
2726 	struct bnx2x *bp = params->bp;
2727 	u8 port = params->port;
2728 	u32 bmac_addr = port ? NIG_REG_INGRESS_BMAC1_MEM :
2729 			       NIG_REG_INGRESS_BMAC0_MEM;
2730 	u32 wb_data[2];
2731 
2732 	DP(NETIF_MSG_LINK, "Enabling BigMAC2\n");
2733 
2734 	wb_data[0] = 0;
2735 	wb_data[1] = 0;
2736 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_BMAC_CONTROL, wb_data, 2);
2737 	udelay(30);
2738 
2739 	/* XGXS control: Reset phy HW, MDIO registers, PHY PLL and BMAC */
2740 	wb_data[0] = 0x3c;
2741 	wb_data[1] = 0;
2742 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_BMAC_XGXS_CONTROL,
2743 		    wb_data, 2);
2744 
2745 	udelay(30);
2746 
2747 	/* tx MAC SA */
2748 	wb_data[0] = ((params->mac_addr[2] << 24) |
2749 		       (params->mac_addr[3] << 16) |
2750 		       (params->mac_addr[4] << 8) |
2751 			params->mac_addr[5]);
2752 	wb_data[1] = ((params->mac_addr[0] << 8) |
2753 			params->mac_addr[1]);
2754 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_TX_SOURCE_ADDR,
2755 		    wb_data, 2);
2756 
2757 	udelay(30);
2758 
2759 	/* Configure SAFC */
2760 	wb_data[0] = 0x1000200;
2761 	wb_data[1] = 0;
2762 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_RX_LLFC_MSG_FLDS,
2763 		    wb_data, 2);
2764 	udelay(30);
2765 
2766 	/* set rx mtu */
2767 	wb_data[0] = ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVREHEAD;
2768 	wb_data[1] = 0;
2769 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_RX_MAX_SIZE, wb_data, 2);
2770 	udelay(30);
2771 
2772 	/* set tx mtu */
2773 	wb_data[0] = ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVREHEAD;
2774 	wb_data[1] = 0;
2775 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_TX_MAX_SIZE, wb_data, 2);
2776 	udelay(30);
2777 	/* set cnt max size */
2778 	wb_data[0] = ETH_MAX_JUMBO_PACKET_SIZE + ETH_OVREHEAD - 2;
2779 	wb_data[1] = 0;
2780 	REG_WR_DMAE(bp, bmac_addr + BIGMAC2_REGISTER_CNT_MAX_SIZE, wb_data, 2);
2781 	udelay(30);
2782 	bnx2x_update_pfc_bmac2(params, vars, is_lb);
2783 
2784 	return 0;
2785 }
2786 
bnx2x_bmac_enable(struct link_params * params,struct link_vars * vars,u8 is_lb)2787 static int bnx2x_bmac_enable(struct link_params *params,
2788 			     struct link_vars *vars,
2789 			     u8 is_lb)
2790 {
2791 	int rc = 0;
2792 	u8 port = params->port;
2793 	struct bnx2x *bp = params->bp;
2794 	u32 val;
2795 	/* reset and unreset the BigMac */
2796 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
2797 	       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
2798 	msleep(1);
2799 
2800 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_SET,
2801 	       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
2802 
2803 	/* enable access for bmac registers */
2804 	REG_WR(bp, NIG_REG_BMAC0_REGS_OUT_EN + port*4, 0x1);
2805 
2806 	/* Enable BMAC according to BMAC type*/
2807 	if (CHIP_IS_E2(bp))
2808 		rc = bnx2x_bmac2_enable(params, vars, is_lb);
2809 	else
2810 		rc = bnx2x_bmac1_enable(params, vars, is_lb);
2811 	REG_WR(bp, NIG_REG_XGXS_SERDES0_MODE_SEL + port*4, 0x1);
2812 	REG_WR(bp, NIG_REG_XGXS_LANE_SEL_P0 + port*4, 0x0);
2813 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_PORT + port*4, 0x0);
2814 	val = 0;
2815 	if ((params->feature_config_flags &
2816 	      FEATURE_CONFIG_PFC_ENABLED) ||
2817 	    (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX))
2818 		val = 1;
2819 	REG_WR(bp, NIG_REG_BMAC0_PAUSE_OUT_EN + port*4, val);
2820 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_OUT_EN + port*4, 0x0);
2821 	REG_WR(bp, NIG_REG_EMAC0_IN_EN + port*4, 0x0);
2822 	REG_WR(bp, NIG_REG_EMAC0_PAUSE_OUT_EN + port*4, 0x0);
2823 	REG_WR(bp, NIG_REG_BMAC0_IN_EN + port*4, 0x1);
2824 	REG_WR(bp, NIG_REG_BMAC0_OUT_EN + port*4, 0x1);
2825 
2826 	vars->mac_type = MAC_TYPE_BMAC;
2827 	return rc;
2828 }
2829 
bnx2x_bmac_rx_disable(struct bnx2x * bp,u8 port)2830 static void bnx2x_bmac_rx_disable(struct bnx2x *bp, u8 port)
2831 {
2832 	u32 bmac_addr = port ? NIG_REG_INGRESS_BMAC1_MEM :
2833 			NIG_REG_INGRESS_BMAC0_MEM;
2834 	u32 wb_data[2];
2835 	u32 nig_bmac_enable = REG_RD(bp, NIG_REG_BMAC0_REGS_OUT_EN + port*4);
2836 
2837 	/* Only if the bmac is out of reset */
2838 	if (REG_RD(bp, MISC_REG_RESET_REG_2) &
2839 			(MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port) &&
2840 	    nig_bmac_enable) {
2841 
2842 		if (CHIP_IS_E2(bp)) {
2843 			/* Clear Rx Enable bit in BMAC_CONTROL register */
2844 			REG_RD_DMAE(bp, bmac_addr +
2845 				    BIGMAC2_REGISTER_BMAC_CONTROL,
2846 				    wb_data, 2);
2847 			wb_data[0] &= ~BMAC_CONTROL_RX_ENABLE;
2848 			REG_WR_DMAE(bp, bmac_addr +
2849 				    BIGMAC2_REGISTER_BMAC_CONTROL,
2850 				    wb_data, 2);
2851 		} else {
2852 			/* Clear Rx Enable bit in BMAC_CONTROL register */
2853 			REG_RD_DMAE(bp, bmac_addr +
2854 					BIGMAC_REGISTER_BMAC_CONTROL,
2855 					wb_data, 2);
2856 			wb_data[0] &= ~BMAC_CONTROL_RX_ENABLE;
2857 			REG_WR_DMAE(bp, bmac_addr +
2858 					BIGMAC_REGISTER_BMAC_CONTROL,
2859 					wb_data, 2);
2860 		}
2861 		msleep(1);
2862 	}
2863 }
2864 
bnx2x_pbf_update(struct link_params * params,u32 flow_ctrl,u32 line_speed)2865 static int bnx2x_pbf_update(struct link_params *params, u32 flow_ctrl,
2866 			    u32 line_speed)
2867 {
2868 	struct bnx2x *bp = params->bp;
2869 	u8 port = params->port;
2870 	u32 init_crd, crd;
2871 	u32 count = 1000;
2872 
2873 	/* disable port */
2874 	REG_WR(bp, PBF_REG_DISABLE_NEW_TASK_PROC_P0 + port*4, 0x1);
2875 
2876 	/* wait for init credit */
2877 	init_crd = REG_RD(bp, PBF_REG_P0_INIT_CRD + port*4);
2878 	crd = REG_RD(bp, PBF_REG_P0_CREDIT + port*8);
2879 	DP(NETIF_MSG_LINK, "init_crd 0x%x  crd 0x%x\n", init_crd, crd);
2880 
2881 	while ((init_crd != crd) && count) {
2882 		msleep(5);
2883 
2884 		crd = REG_RD(bp, PBF_REG_P0_CREDIT + port*8);
2885 		count--;
2886 	}
2887 	crd = REG_RD(bp, PBF_REG_P0_CREDIT + port*8);
2888 	if (init_crd != crd) {
2889 		DP(NETIF_MSG_LINK, "BUG! init_crd 0x%x != crd 0x%x\n",
2890 			  init_crd, crd);
2891 		return -EINVAL;
2892 	}
2893 
2894 	if (flow_ctrl & BNX2X_FLOW_CTRL_RX ||
2895 	    line_speed == SPEED_10 ||
2896 	    line_speed == SPEED_100 ||
2897 	    line_speed == SPEED_1000 ||
2898 	    line_speed == SPEED_2500) {
2899 		REG_WR(bp, PBF_REG_P0_PAUSE_ENABLE + port*4, 1);
2900 		/* update threshold */
2901 		REG_WR(bp, PBF_REG_P0_ARB_THRSH + port*4, 0);
2902 		/* update init credit */
2903 		init_crd = 778;		/* (800-18-4) */
2904 
2905 	} else {
2906 		u32 thresh = (ETH_MAX_JUMBO_PACKET_SIZE +
2907 			      ETH_OVREHEAD)/16;
2908 		REG_WR(bp, PBF_REG_P0_PAUSE_ENABLE + port*4, 0);
2909 		/* update threshold */
2910 		REG_WR(bp, PBF_REG_P0_ARB_THRSH + port*4, thresh);
2911 		/* update init credit */
2912 		switch (line_speed) {
2913 		case SPEED_10000:
2914 			init_crd = thresh + 553 - 22;
2915 			break;
2916 		default:
2917 			DP(NETIF_MSG_LINK, "Invalid line_speed 0x%x\n",
2918 				  line_speed);
2919 			return -EINVAL;
2920 		}
2921 	}
2922 	REG_WR(bp, PBF_REG_P0_INIT_CRD + port*4, init_crd);
2923 	DP(NETIF_MSG_LINK, "PBF updated to speed %d credit %d\n",
2924 		 line_speed, init_crd);
2925 
2926 	/* probe the credit changes */
2927 	REG_WR(bp, PBF_REG_INIT_P0 + port*4, 0x1);
2928 	msleep(5);
2929 	REG_WR(bp, PBF_REG_INIT_P0 + port*4, 0x0);
2930 
2931 	/* enable port */
2932 	REG_WR(bp, PBF_REG_DISABLE_NEW_TASK_PROC_P0 + port*4, 0x0);
2933 	return 0;
2934 }
2935 
2936 /**
2937  * bnx2x_get_emac_base - retrive emac base address
2938  *
2939  * @bp:			driver handle
2940  * @mdc_mdio_access:	access type
2941  * @port:		port id
2942  *
2943  * This function selects the MDC/MDIO access (through emac0 or
2944  * emac1) depend on the mdc_mdio_access, port, port swapped. Each
2945  * phy has a default access mode, which could also be overridden
2946  * by nvram configuration. This parameter, whether this is the
2947  * default phy configuration, or the nvram overrun
2948  * configuration, is passed here as mdc_mdio_access and selects
2949  * the emac_base for the CL45 read/writes operations
2950  */
bnx2x_get_emac_base(struct bnx2x * bp,u32 mdc_mdio_access,u8 port)2951 static u32 bnx2x_get_emac_base(struct bnx2x *bp,
2952 			       u32 mdc_mdio_access, u8 port)
2953 {
2954 	u32 emac_base = 0;
2955 	switch (mdc_mdio_access) {
2956 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_PHY_TYPE:
2957 		break;
2958 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC0:
2959 		if (REG_RD(bp, NIG_REG_PORT_SWAP))
2960 			emac_base = GRCBASE_EMAC1;
2961 		else
2962 			emac_base = GRCBASE_EMAC0;
2963 		break;
2964 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC1:
2965 		if (REG_RD(bp, NIG_REG_PORT_SWAP))
2966 			emac_base = GRCBASE_EMAC0;
2967 		else
2968 			emac_base = GRCBASE_EMAC1;
2969 		break;
2970 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_BOTH:
2971 		emac_base = (port) ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
2972 		break;
2973 	case SHARED_HW_CFG_MDC_MDIO_ACCESS1_SWAPPED:
2974 		emac_base = (port) ? GRCBASE_EMAC0 : GRCBASE_EMAC1;
2975 		break;
2976 	default:
2977 		break;
2978 	}
2979 	return emac_base;
2980 
2981 }
2982 
2983 /******************************************************************/
2984 /*			CL22 access functions			  */
2985 /******************************************************************/
bnx2x_cl22_write(struct bnx2x * bp,struct bnx2x_phy * phy,u16 reg,u16 val)2986 static int bnx2x_cl22_write(struct bnx2x *bp,
2987 				       struct bnx2x_phy *phy,
2988 				       u16 reg, u16 val)
2989 {
2990 	u32 tmp, mode;
2991 	u8 i;
2992 	int rc = 0;
2993 	/* Switch to CL22 */
2994 	mode = REG_RD(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE);
2995 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE,
2996 	       mode & ~EMAC_MDIO_MODE_CLAUSE_45);
2997 
2998 	/* address */
2999 	tmp = ((phy->addr << 21) | (reg << 16) | val |
3000 	       EMAC_MDIO_COMM_COMMAND_WRITE_22 |
3001 	       EMAC_MDIO_COMM_START_BUSY);
3002 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, tmp);
3003 
3004 	for (i = 0; i < 50; i++) {
3005 		udelay(10);
3006 
3007 		tmp = REG_RD(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM);
3008 		if (!(tmp & EMAC_MDIO_COMM_START_BUSY)) {
3009 			udelay(5);
3010 			break;
3011 		}
3012 	}
3013 	if (tmp & EMAC_MDIO_COMM_START_BUSY) {
3014 		DP(NETIF_MSG_LINK, "write phy register failed\n");
3015 		rc = -EFAULT;
3016 	}
3017 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE, mode);
3018 	return rc;
3019 }
3020 
bnx2x_cl22_read(struct bnx2x * bp,struct bnx2x_phy * phy,u16 reg,u16 * ret_val)3021 static int bnx2x_cl22_read(struct bnx2x *bp,
3022 				      struct bnx2x_phy *phy,
3023 				      u16 reg, u16 *ret_val)
3024 {
3025 	u32 val, mode;
3026 	u16 i;
3027 	int rc = 0;
3028 
3029 	/* Switch to CL22 */
3030 	mode = REG_RD(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE);
3031 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE,
3032 	       mode & ~EMAC_MDIO_MODE_CLAUSE_45);
3033 
3034 	/* address */
3035 	val = ((phy->addr << 21) | (reg << 16) |
3036 	       EMAC_MDIO_COMM_COMMAND_READ_22 |
3037 	       EMAC_MDIO_COMM_START_BUSY);
3038 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, val);
3039 
3040 	for (i = 0; i < 50; i++) {
3041 		udelay(10);
3042 
3043 		val = REG_RD(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM);
3044 		if (!(val & EMAC_MDIO_COMM_START_BUSY)) {
3045 			*ret_val = (u16)(val & EMAC_MDIO_COMM_DATA);
3046 			udelay(5);
3047 			break;
3048 		}
3049 	}
3050 	if (val & EMAC_MDIO_COMM_START_BUSY) {
3051 		DP(NETIF_MSG_LINK, "read phy register failed\n");
3052 
3053 		*ret_val = 0;
3054 		rc = -EFAULT;
3055 	}
3056 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_MODE, mode);
3057 	return rc;
3058 }
3059 
3060 /******************************************************************/
3061 /*			CL45 access functions			  */
3062 /******************************************************************/
bnx2x_cl45_read(struct bnx2x * bp,struct bnx2x_phy * phy,u8 devad,u16 reg,u16 * ret_val)3063 static int bnx2x_cl45_read(struct bnx2x *bp, struct bnx2x_phy *phy,
3064 			   u8 devad, u16 reg, u16 *ret_val)
3065 {
3066 	u32 val;
3067 	u16 i;
3068 	int rc = 0;
3069 	if (phy->flags & FLAGS_MDC_MDIO_WA_B0)
3070 		bnx2x_bits_en(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
3071 			      EMAC_MDIO_STATUS_10MB);
3072 	/* address */
3073 	val = ((phy->addr << 21) | (devad << 16) | reg |
3074 	       EMAC_MDIO_COMM_COMMAND_ADDRESS |
3075 	       EMAC_MDIO_COMM_START_BUSY);
3076 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, val);
3077 
3078 	for (i = 0; i < 50; i++) {
3079 		udelay(10);
3080 
3081 		val = REG_RD(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM);
3082 		if (!(val & EMAC_MDIO_COMM_START_BUSY)) {
3083 			udelay(5);
3084 			break;
3085 		}
3086 	}
3087 	if (val & EMAC_MDIO_COMM_START_BUSY) {
3088 		DP(NETIF_MSG_LINK, "read phy register failed\n");
3089 		netdev_err(bp->dev,  "MDC/MDIO access timeout\n");
3090 		*ret_val = 0;
3091 		rc = -EFAULT;
3092 	} else {
3093 		/* data */
3094 		val = ((phy->addr << 21) | (devad << 16) |
3095 		       EMAC_MDIO_COMM_COMMAND_READ_45 |
3096 		       EMAC_MDIO_COMM_START_BUSY);
3097 		REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, val);
3098 
3099 		for (i = 0; i < 50; i++) {
3100 			udelay(10);
3101 
3102 			val = REG_RD(bp, phy->mdio_ctrl +
3103 				     EMAC_REG_EMAC_MDIO_COMM);
3104 			if (!(val & EMAC_MDIO_COMM_START_BUSY)) {
3105 				*ret_val = (u16)(val & EMAC_MDIO_COMM_DATA);
3106 				break;
3107 			}
3108 		}
3109 		if (val & EMAC_MDIO_COMM_START_BUSY) {
3110 			DP(NETIF_MSG_LINK, "read phy register failed\n");
3111 			netdev_err(bp->dev,  "MDC/MDIO access timeout\n");
3112 			*ret_val = 0;
3113 			rc = -EFAULT;
3114 		}
3115 	}
3116 	/* Work around for E3 A0 */
3117 	if (phy->flags & FLAGS_MDC_MDIO_WA) {
3118 		phy->flags ^= FLAGS_DUMMY_READ;
3119 		if (phy->flags & FLAGS_DUMMY_READ) {
3120 			u16 temp_val;
3121 			bnx2x_cl45_read(bp, phy, devad, 0xf, &temp_val);
3122 		}
3123 	}
3124 
3125 	if (phy->flags & FLAGS_MDC_MDIO_WA_B0)
3126 		bnx2x_bits_dis(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
3127 			       EMAC_MDIO_STATUS_10MB);
3128 	return rc;
3129 }
3130 
bnx2x_cl45_write(struct bnx2x * bp,struct bnx2x_phy * phy,u8 devad,u16 reg,u16 val)3131 static int bnx2x_cl45_write(struct bnx2x *bp, struct bnx2x_phy *phy,
3132 			    u8 devad, u16 reg, u16 val)
3133 {
3134 	u32 tmp;
3135 	u8 i;
3136 	int rc = 0;
3137 	if (phy->flags & FLAGS_MDC_MDIO_WA_B0)
3138 		bnx2x_bits_en(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
3139 			      EMAC_MDIO_STATUS_10MB);
3140 
3141 	/* address */
3142 
3143 	tmp = ((phy->addr << 21) | (devad << 16) | reg |
3144 	       EMAC_MDIO_COMM_COMMAND_ADDRESS |
3145 	       EMAC_MDIO_COMM_START_BUSY);
3146 	REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, tmp);
3147 
3148 	for (i = 0; i < 50; i++) {
3149 		udelay(10);
3150 
3151 		tmp = REG_RD(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM);
3152 		if (!(tmp & EMAC_MDIO_COMM_START_BUSY)) {
3153 			udelay(5);
3154 			break;
3155 		}
3156 	}
3157 	if (tmp & EMAC_MDIO_COMM_START_BUSY) {
3158 		DP(NETIF_MSG_LINK, "write phy register failed\n");
3159 		netdev_err(bp->dev,  "MDC/MDIO access timeout\n");
3160 		rc = -EFAULT;
3161 	} else {
3162 		/* data */
3163 		tmp = ((phy->addr << 21) | (devad << 16) | val |
3164 		       EMAC_MDIO_COMM_COMMAND_WRITE_45 |
3165 		       EMAC_MDIO_COMM_START_BUSY);
3166 		REG_WR(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_COMM, tmp);
3167 
3168 		for (i = 0; i < 50; i++) {
3169 			udelay(10);
3170 
3171 			tmp = REG_RD(bp, phy->mdio_ctrl +
3172 				     EMAC_REG_EMAC_MDIO_COMM);
3173 			if (!(tmp & EMAC_MDIO_COMM_START_BUSY)) {
3174 				udelay(5);
3175 				break;
3176 			}
3177 		}
3178 		if (tmp & EMAC_MDIO_COMM_START_BUSY) {
3179 			DP(NETIF_MSG_LINK, "write phy register failed\n");
3180 			netdev_err(bp->dev,  "MDC/MDIO access timeout\n");
3181 			rc = -EFAULT;
3182 		}
3183 	}
3184 	/* Work around for E3 A0 */
3185 	if (phy->flags & FLAGS_MDC_MDIO_WA) {
3186 		phy->flags ^= FLAGS_DUMMY_READ;
3187 		if (phy->flags & FLAGS_DUMMY_READ) {
3188 			u16 temp_val;
3189 			bnx2x_cl45_read(bp, phy, devad, 0xf, &temp_val);
3190 		}
3191 	}
3192 	if (phy->flags & FLAGS_MDC_MDIO_WA_B0)
3193 		bnx2x_bits_dis(bp, phy->mdio_ctrl + EMAC_REG_EMAC_MDIO_STATUS,
3194 			       EMAC_MDIO_STATUS_10MB);
3195 	return rc;
3196 }
3197 /******************************************************************/
3198 /*			BSC access functions from E3	          */
3199 /******************************************************************/
bnx2x_bsc_module_sel(struct link_params * params)3200 static void bnx2x_bsc_module_sel(struct link_params *params)
3201 {
3202 	int idx;
3203 	u32 board_cfg, sfp_ctrl;
3204 	u32 i2c_pins[I2C_SWITCH_WIDTH], i2c_val[I2C_SWITCH_WIDTH];
3205 	struct bnx2x *bp = params->bp;
3206 	u8 port = params->port;
3207 	/* Read I2C output PINs */
3208 	board_cfg = REG_RD(bp, params->shmem_base +
3209 			   offsetof(struct shmem_region,
3210 				    dev_info.shared_hw_config.board));
3211 	i2c_pins[I2C_BSC0] = board_cfg & SHARED_HW_CFG_E3_I2C_MUX0_MASK;
3212 	i2c_pins[I2C_BSC1] = (board_cfg & SHARED_HW_CFG_E3_I2C_MUX1_MASK) >>
3213 			SHARED_HW_CFG_E3_I2C_MUX1_SHIFT;
3214 
3215 	/* Read I2C output value */
3216 	sfp_ctrl = REG_RD(bp, params->shmem_base +
3217 			  offsetof(struct shmem_region,
3218 				 dev_info.port_hw_config[port].e3_cmn_pin_cfg));
3219 	i2c_val[I2C_BSC0] = (sfp_ctrl & PORT_HW_CFG_E3_I2C_MUX0_MASK) > 0;
3220 	i2c_val[I2C_BSC1] = (sfp_ctrl & PORT_HW_CFG_E3_I2C_MUX1_MASK) > 0;
3221 	DP(NETIF_MSG_LINK, "Setting BSC switch\n");
3222 	for (idx = 0; idx < I2C_SWITCH_WIDTH; idx++)
3223 		bnx2x_set_cfg_pin(bp, i2c_pins[idx], i2c_val[idx]);
3224 }
3225 
bnx2x_bsc_read(struct link_params * params,struct bnx2x_phy * phy,u8 sl_devid,u16 sl_addr,u8 lc_addr,u8 xfer_cnt,u32 * data_array)3226 static int bnx2x_bsc_read(struct link_params *params,
3227 			  struct bnx2x_phy *phy,
3228 			  u8 sl_devid,
3229 			  u16 sl_addr,
3230 			  u8 lc_addr,
3231 			  u8 xfer_cnt,
3232 			  u32 *data_array)
3233 {
3234 	u32 val, i;
3235 	int rc = 0;
3236 	struct bnx2x *bp = params->bp;
3237 
3238 	if ((sl_devid != 0xa0) && (sl_devid != 0xa2)) {
3239 		DP(NETIF_MSG_LINK, "invalid sl_devid 0x%x\n", sl_devid);
3240 		return -EINVAL;
3241 	}
3242 
3243 	if (xfer_cnt > 16) {
3244 		DP(NETIF_MSG_LINK, "invalid xfer_cnt %d. Max is 16 bytes\n",
3245 					xfer_cnt);
3246 		return -EINVAL;
3247 	}
3248 	bnx2x_bsc_module_sel(params);
3249 
3250 	xfer_cnt = 16 - lc_addr;
3251 
3252 	/* enable the engine */
3253 	val = REG_RD(bp, MCP_REG_MCPR_IMC_COMMAND);
3254 	val |= MCPR_IMC_COMMAND_ENABLE;
3255 	REG_WR(bp, MCP_REG_MCPR_IMC_COMMAND, val);
3256 
3257 	/* program slave device ID */
3258 	val = (sl_devid << 16) | sl_addr;
3259 	REG_WR(bp, MCP_REG_MCPR_IMC_SLAVE_CONTROL, val);
3260 
3261 	/* start xfer with 0 byte to update the address pointer ???*/
3262 	val = (MCPR_IMC_COMMAND_ENABLE) |
3263 	      (MCPR_IMC_COMMAND_WRITE_OP <<
3264 		MCPR_IMC_COMMAND_OPERATION_BITSHIFT) |
3265 		(lc_addr << MCPR_IMC_COMMAND_TRANSFER_ADDRESS_BITSHIFT) | (0);
3266 	REG_WR(bp, MCP_REG_MCPR_IMC_COMMAND, val);
3267 
3268 	/* poll for completion */
3269 	i = 0;
3270 	val = REG_RD(bp, MCP_REG_MCPR_IMC_COMMAND);
3271 	while (((val >> MCPR_IMC_COMMAND_IMC_STATUS_BITSHIFT) & 0x3) != 1) {
3272 		udelay(10);
3273 		val = REG_RD(bp, MCP_REG_MCPR_IMC_COMMAND);
3274 		if (i++ > 1000) {
3275 			DP(NETIF_MSG_LINK, "wr 0 byte timed out after %d try\n",
3276 								i);
3277 			rc = -EFAULT;
3278 			break;
3279 		}
3280 	}
3281 	if (rc == -EFAULT)
3282 		return rc;
3283 
3284 	/* start xfer with read op */
3285 	val = (MCPR_IMC_COMMAND_ENABLE) |
3286 		(MCPR_IMC_COMMAND_READ_OP <<
3287 		MCPR_IMC_COMMAND_OPERATION_BITSHIFT) |
3288 		(lc_addr << MCPR_IMC_COMMAND_TRANSFER_ADDRESS_BITSHIFT) |
3289 		  (xfer_cnt);
3290 	REG_WR(bp, MCP_REG_MCPR_IMC_COMMAND, val);
3291 
3292 	/* poll for completion */
3293 	i = 0;
3294 	val = REG_RD(bp, MCP_REG_MCPR_IMC_COMMAND);
3295 	while (((val >> MCPR_IMC_COMMAND_IMC_STATUS_BITSHIFT) & 0x3) != 1) {
3296 		udelay(10);
3297 		val = REG_RD(bp, MCP_REG_MCPR_IMC_COMMAND);
3298 		if (i++ > 1000) {
3299 			DP(NETIF_MSG_LINK, "rd op timed out after %d try\n", i);
3300 			rc = -EFAULT;
3301 			break;
3302 		}
3303 	}
3304 	if (rc == -EFAULT)
3305 		return rc;
3306 
3307 	for (i = (lc_addr >> 2); i < 4; i++) {
3308 		data_array[i] = REG_RD(bp, (MCP_REG_MCPR_IMC_DATAREG0 + i*4));
3309 #ifdef __BIG_ENDIAN
3310 		data_array[i] = ((data_array[i] & 0x000000ff) << 24) |
3311 				((data_array[i] & 0x0000ff00) << 8) |
3312 				((data_array[i] & 0x00ff0000) >> 8) |
3313 				((data_array[i] & 0xff000000) >> 24);
3314 #endif
3315 	}
3316 	return rc;
3317 }
3318 
bnx2x_cl45_read_or_write(struct bnx2x * bp,struct bnx2x_phy * phy,u8 devad,u16 reg,u16 or_val)3319 static void bnx2x_cl45_read_or_write(struct bnx2x *bp, struct bnx2x_phy *phy,
3320 				     u8 devad, u16 reg, u16 or_val)
3321 {
3322 	u16 val;
3323 	bnx2x_cl45_read(bp, phy, devad, reg, &val);
3324 	bnx2x_cl45_write(bp, phy, devad, reg, val | or_val);
3325 }
3326 
bnx2x_phy_read(struct link_params * params,u8 phy_addr,u8 devad,u16 reg,u16 * ret_val)3327 int bnx2x_phy_read(struct link_params *params, u8 phy_addr,
3328 		   u8 devad, u16 reg, u16 *ret_val)
3329 {
3330 	u8 phy_index;
3331 	/*
3332 	 * Probe for the phy according to the given phy_addr, and execute
3333 	 * the read request on it
3334 	 */
3335 	for (phy_index = 0; phy_index < params->num_phys; phy_index++) {
3336 		if (params->phy[phy_index].addr == phy_addr) {
3337 			return bnx2x_cl45_read(params->bp,
3338 					       &params->phy[phy_index], devad,
3339 					       reg, ret_val);
3340 		}
3341 	}
3342 	return -EINVAL;
3343 }
3344 
bnx2x_phy_write(struct link_params * params,u8 phy_addr,u8 devad,u16 reg,u16 val)3345 int bnx2x_phy_write(struct link_params *params, u8 phy_addr,
3346 		    u8 devad, u16 reg, u16 val)
3347 {
3348 	u8 phy_index;
3349 	/*
3350 	 * Probe for the phy according to the given phy_addr, and execute
3351 	 * the write request on it
3352 	 */
3353 	for (phy_index = 0; phy_index < params->num_phys; phy_index++) {
3354 		if (params->phy[phy_index].addr == phy_addr) {
3355 			return bnx2x_cl45_write(params->bp,
3356 						&params->phy[phy_index], devad,
3357 						reg, val);
3358 		}
3359 	}
3360 	return -EINVAL;
3361 }
bnx2x_get_warpcore_lane(struct bnx2x_phy * phy,struct link_params * params)3362 static u8 bnx2x_get_warpcore_lane(struct bnx2x_phy *phy,
3363 				  struct link_params *params)
3364 {
3365 	u8 lane = 0;
3366 	struct bnx2x *bp = params->bp;
3367 	u32 path_swap, path_swap_ovr;
3368 	u8 path, port;
3369 
3370 	path = BP_PATH(bp);
3371 	port = params->port;
3372 
3373 	if (bnx2x_is_4_port_mode(bp)) {
3374 		u32 port_swap, port_swap_ovr;
3375 
3376 		/*figure out path swap value */
3377 		path_swap_ovr = REG_RD(bp, MISC_REG_FOUR_PORT_PATH_SWAP_OVWR);
3378 		if (path_swap_ovr & 0x1)
3379 			path_swap = (path_swap_ovr & 0x2);
3380 		else
3381 			path_swap = REG_RD(bp, MISC_REG_FOUR_PORT_PATH_SWAP);
3382 
3383 		if (path_swap)
3384 			path = path ^ 1;
3385 
3386 		/*figure out port swap value */
3387 		port_swap_ovr = REG_RD(bp, MISC_REG_FOUR_PORT_PORT_SWAP_OVWR);
3388 		if (port_swap_ovr & 0x1)
3389 			port_swap = (port_swap_ovr & 0x2);
3390 		else
3391 			port_swap = REG_RD(bp, MISC_REG_FOUR_PORT_PORT_SWAP);
3392 
3393 		if (port_swap)
3394 			port = port ^ 1;
3395 
3396 		lane = (port<<1) + path;
3397 	} else { /* two port mode - no port swap */
3398 
3399 		/*figure out path swap value */
3400 		path_swap_ovr =
3401 			REG_RD(bp, MISC_REG_TWO_PORT_PATH_SWAP_OVWR);
3402 		if (path_swap_ovr & 0x1) {
3403 			path_swap = (path_swap_ovr & 0x2);
3404 		} else {
3405 			path_swap =
3406 				REG_RD(bp, MISC_REG_TWO_PORT_PATH_SWAP);
3407 		}
3408 		if (path_swap)
3409 			path = path ^ 1;
3410 
3411 		lane = path << 1 ;
3412 	}
3413 	return lane;
3414 }
3415 
bnx2x_set_aer_mmd(struct link_params * params,struct bnx2x_phy * phy)3416 static void bnx2x_set_aer_mmd(struct link_params *params,
3417 			      struct bnx2x_phy *phy)
3418 {
3419 	u32 ser_lane;
3420 	u16 offset, aer_val;
3421 	struct bnx2x *bp = params->bp;
3422 	ser_lane = ((params->lane_config &
3423 		     PORT_HW_CFG_LANE_SWAP_CFG_MASTER_MASK) >>
3424 		     PORT_HW_CFG_LANE_SWAP_CFG_MASTER_SHIFT);
3425 
3426 	offset = (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) ?
3427 		(phy->addr + ser_lane) : 0;
3428 
3429 	if (USES_WARPCORE(bp)) {
3430 		aer_val = bnx2x_get_warpcore_lane(phy, params);
3431 		/*
3432 		 * In Dual-lane mode, two lanes are joined together,
3433 		 * so in order to configure them, the AER broadcast method is
3434 		 * used here.
3435 		 * 0x200 is the broadcast address for lanes 0,1
3436 		 * 0x201 is the broadcast address for lanes 2,3
3437 		 */
3438 		if (phy->flags & FLAGS_WC_DUAL_MODE)
3439 			aer_val = (aer_val >> 1) | 0x200;
3440 	} else if (CHIP_IS_E2(bp))
3441 		aer_val = 0x3800 + offset - 1;
3442 	else
3443 		aer_val = 0x3800 + offset;
3444 
3445 	CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
3446 			  MDIO_AER_BLOCK_AER_REG, aer_val);
3447 
3448 }
3449 
3450 /******************************************************************/
3451 /*			Internal phy section			  */
3452 /******************************************************************/
3453 
bnx2x_set_serdes_access(struct bnx2x * bp,u8 port)3454 static void bnx2x_set_serdes_access(struct bnx2x *bp, u8 port)
3455 {
3456 	u32 emac_base = (port) ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
3457 
3458 	/* Set Clause 22 */
3459 	REG_WR(bp, NIG_REG_SERDES0_CTRL_MD_ST + port*0x10, 1);
3460 	REG_WR(bp, emac_base + EMAC_REG_EMAC_MDIO_COMM, 0x245f8000);
3461 	udelay(500);
3462 	REG_WR(bp, emac_base + EMAC_REG_EMAC_MDIO_COMM, 0x245d000f);
3463 	udelay(500);
3464 	 /* Set Clause 45 */
3465 	REG_WR(bp, NIG_REG_SERDES0_CTRL_MD_ST + port*0x10, 0);
3466 }
3467 
bnx2x_serdes_deassert(struct bnx2x * bp,u8 port)3468 static void bnx2x_serdes_deassert(struct bnx2x *bp, u8 port)
3469 {
3470 	u32 val;
3471 
3472 	DP(NETIF_MSG_LINK, "bnx2x_serdes_deassert\n");
3473 
3474 	val = SERDES_RESET_BITS << (port*16);
3475 
3476 	/* reset and unreset the SerDes/XGXS */
3477 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_CLEAR, val);
3478 	udelay(500);
3479 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_SET, val);
3480 
3481 	bnx2x_set_serdes_access(bp, port);
3482 
3483 	REG_WR(bp, NIG_REG_SERDES0_CTRL_MD_DEVAD + port*0x10,
3484 	       DEFAULT_PHY_DEV_ADDR);
3485 }
3486 
bnx2x_xgxs_deassert(struct link_params * params)3487 static void bnx2x_xgxs_deassert(struct link_params *params)
3488 {
3489 	struct bnx2x *bp = params->bp;
3490 	u8 port;
3491 	u32 val;
3492 	DP(NETIF_MSG_LINK, "bnx2x_xgxs_deassert\n");
3493 	port = params->port;
3494 
3495 	val = XGXS_RESET_BITS << (port*16);
3496 
3497 	/* reset and unreset the SerDes/XGXS */
3498 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_CLEAR, val);
3499 	udelay(500);
3500 	REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_SET, val);
3501 
3502 	REG_WR(bp, NIG_REG_XGXS0_CTRL_MD_ST + port*0x18, 0);
3503 	REG_WR(bp, NIG_REG_XGXS0_CTRL_MD_DEVAD + port*0x18,
3504 	       params->phy[INT_PHY].def_md_devad);
3505 }
3506 
bnx2x_calc_ieee_aneg_adv(struct bnx2x_phy * phy,struct link_params * params,u16 * ieee_fc)3507 static void bnx2x_calc_ieee_aneg_adv(struct bnx2x_phy *phy,
3508 				     struct link_params *params, u16 *ieee_fc)
3509 {
3510 	struct bnx2x *bp = params->bp;
3511 	*ieee_fc = MDIO_COMBO_IEEE0_AUTO_NEG_ADV_FULL_DUPLEX;
3512 	/**
3513 	 * resolve pause mode and advertisement Please refer to Table
3514 	 * 28B-3 of the 802.3ab-1999 spec
3515 	 */
3516 
3517 	switch (phy->req_flow_ctrl) {
3518 	case BNX2X_FLOW_CTRL_AUTO:
3519 		if (params->req_fc_auto_adv == BNX2X_FLOW_CTRL_BOTH)
3520 			*ieee_fc |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH;
3521 		else
3522 			*ieee_fc |=
3523 			MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC;
3524 		break;
3525 
3526 	case BNX2X_FLOW_CTRL_TX:
3527 		*ieee_fc |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC;
3528 		break;
3529 
3530 	case BNX2X_FLOW_CTRL_RX:
3531 	case BNX2X_FLOW_CTRL_BOTH:
3532 		*ieee_fc |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH;
3533 		break;
3534 
3535 	case BNX2X_FLOW_CTRL_NONE:
3536 	default:
3537 		*ieee_fc |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_NONE;
3538 		break;
3539 	}
3540 	DP(NETIF_MSG_LINK, "ieee_fc = 0x%x\n", *ieee_fc);
3541 }
3542 
set_phy_vars(struct link_params * params,struct link_vars * vars)3543 static void set_phy_vars(struct link_params *params,
3544 			 struct link_vars *vars)
3545 {
3546 	struct bnx2x *bp = params->bp;
3547 	u8 actual_phy_idx, phy_index, link_cfg_idx;
3548 	u8 phy_config_swapped = params->multi_phy_config &
3549 			PORT_HW_CFG_PHY_SWAPPED_ENABLED;
3550 	for (phy_index = INT_PHY; phy_index < params->num_phys;
3551 	      phy_index++) {
3552 		link_cfg_idx = LINK_CONFIG_IDX(phy_index);
3553 		actual_phy_idx = phy_index;
3554 		if (phy_config_swapped) {
3555 			if (phy_index == EXT_PHY1)
3556 				actual_phy_idx = EXT_PHY2;
3557 			else if (phy_index == EXT_PHY2)
3558 				actual_phy_idx = EXT_PHY1;
3559 		}
3560 		params->phy[actual_phy_idx].req_flow_ctrl =
3561 			params->req_flow_ctrl[link_cfg_idx];
3562 
3563 		params->phy[actual_phy_idx].req_line_speed =
3564 			params->req_line_speed[link_cfg_idx];
3565 
3566 		params->phy[actual_phy_idx].speed_cap_mask =
3567 			params->speed_cap_mask[link_cfg_idx];
3568 
3569 		params->phy[actual_phy_idx].req_duplex =
3570 			params->req_duplex[link_cfg_idx];
3571 
3572 		if (params->req_line_speed[link_cfg_idx] ==
3573 		    SPEED_AUTO_NEG)
3574 			vars->link_status |= LINK_STATUS_AUTO_NEGOTIATE_ENABLED;
3575 
3576 		DP(NETIF_MSG_LINK, "req_flow_ctrl %x, req_line_speed %x,"
3577 			   " speed_cap_mask %x\n",
3578 			   params->phy[actual_phy_idx].req_flow_ctrl,
3579 			   params->phy[actual_phy_idx].req_line_speed,
3580 			   params->phy[actual_phy_idx].speed_cap_mask);
3581 	}
3582 }
3583 
bnx2x_ext_phy_set_pause(struct link_params * params,struct bnx2x_phy * phy,struct link_vars * vars)3584 static void bnx2x_ext_phy_set_pause(struct link_params *params,
3585 				    struct bnx2x_phy *phy,
3586 				    struct link_vars *vars)
3587 {
3588 	u16 val;
3589 	struct bnx2x *bp = params->bp;
3590 	/* read modify write pause advertizing */
3591 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV_PAUSE, &val);
3592 
3593 	val &= ~MDIO_AN_REG_ADV_PAUSE_BOTH;
3594 
3595 	/* Please refer to Table 28B-3 of 802.3ab-1999 spec. */
3596 	bnx2x_calc_ieee_aneg_adv(phy, params, &vars->ieee_fc);
3597 	if ((vars->ieee_fc &
3598 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) ==
3599 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) {
3600 		val |= MDIO_AN_REG_ADV_PAUSE_ASYMMETRIC;
3601 	}
3602 	if ((vars->ieee_fc &
3603 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) ==
3604 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) {
3605 		val |= MDIO_AN_REG_ADV_PAUSE_PAUSE;
3606 	}
3607 	DP(NETIF_MSG_LINK, "Ext phy AN advertize 0x%x\n", val);
3608 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV_PAUSE, val);
3609 }
3610 
bnx2x_pause_resolve(struct link_vars * vars,u32 pause_result)3611 static void bnx2x_pause_resolve(struct link_vars *vars, u32 pause_result)
3612 {						/*  LD	    LP	 */
3613 	switch (pause_result) {			/* ASYM P ASYM P */
3614 	case 0xb:				/*   1  0   1  1 */
3615 		vars->flow_ctrl = BNX2X_FLOW_CTRL_TX;
3616 		break;
3617 
3618 	case 0xe:				/*   1  1   1  0 */
3619 		vars->flow_ctrl = BNX2X_FLOW_CTRL_RX;
3620 		break;
3621 
3622 	case 0x5:				/*   0  1   0  1 */
3623 	case 0x7:				/*   0  1   1  1 */
3624 	case 0xd:				/*   1  1   0  1 */
3625 	case 0xf:				/*   1  1   1  1 */
3626 		vars->flow_ctrl = BNX2X_FLOW_CTRL_BOTH;
3627 		break;
3628 
3629 	default:
3630 		break;
3631 	}
3632 	if (pause_result & (1<<0))
3633 		vars->link_status |= LINK_STATUS_LINK_PARTNER_SYMMETRIC_PAUSE;
3634 	if (pause_result & (1<<1))
3635 		vars->link_status |= LINK_STATUS_LINK_PARTNER_ASYMMETRIC_PAUSE;
3636 }
3637 
bnx2x_ext_phy_resolve_fc(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)3638 static u8 bnx2x_ext_phy_resolve_fc(struct bnx2x_phy *phy,
3639 				   struct link_params *params,
3640 				   struct link_vars *vars)
3641 {
3642 	struct bnx2x *bp = params->bp;
3643 	u16 ld_pause;		/* local */
3644 	u16 lp_pause;		/* link partner */
3645 	u16 pause_result;
3646 	u8 ret = 0;
3647 	/* read twice */
3648 
3649 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
3650 
3651 	if (phy->req_flow_ctrl != BNX2X_FLOW_CTRL_AUTO)
3652 		vars->flow_ctrl = phy->req_flow_ctrl;
3653 	else if (phy->req_line_speed != SPEED_AUTO_NEG)
3654 		vars->flow_ctrl = params->req_fc_auto_adv;
3655 	else if (vars->link_status & LINK_STATUS_AUTO_NEGOTIATE_COMPLETE) {
3656 		ret = 1;
3657 		if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE) {
3658 			bnx2x_cl22_read(bp, phy,
3659 					0x4, &ld_pause);
3660 			bnx2x_cl22_read(bp, phy,
3661 					0x5, &lp_pause);
3662 		} else {
3663 			bnx2x_cl45_read(bp, phy,
3664 					MDIO_AN_DEVAD,
3665 					MDIO_AN_REG_ADV_PAUSE, &ld_pause);
3666 			bnx2x_cl45_read(bp, phy,
3667 					MDIO_AN_DEVAD,
3668 					MDIO_AN_REG_LP_AUTO_NEG, &lp_pause);
3669 		}
3670 		pause_result = (ld_pause &
3671 				MDIO_AN_REG_ADV_PAUSE_MASK) >> 8;
3672 		pause_result |= (lp_pause &
3673 				 MDIO_AN_REG_ADV_PAUSE_MASK) >> 10;
3674 		DP(NETIF_MSG_LINK, "Ext PHY pause result 0x%x\n",
3675 		   pause_result);
3676 		bnx2x_pause_resolve(vars, pause_result);
3677 	}
3678 	return ret;
3679 }
3680 /******************************************************************/
3681 /*			Warpcore section			  */
3682 /******************************************************************/
3683 /* The init_internal_warpcore should mirror the xgxs,
3684  * i.e. reset the lane (if needed), set aer for the
3685  * init configuration, and set/clear SGMII flag. Internal
3686  * phy init is done purely in phy_init stage.
3687  */
bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)3688 static void bnx2x_warpcore_enable_AN_KR(struct bnx2x_phy *phy,
3689 					struct link_params *params,
3690 					struct link_vars *vars) {
3691 	u16 val16 = 0, lane, bam37 = 0;
3692 	struct bnx2x *bp = params->bp;
3693 	DP(NETIF_MSG_LINK, "Enable Auto Negotiation for KR\n");
3694 
3695 	/* Disable Autoneg: re-enable it after adv is done. */
3696 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
3697 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0);
3698 
3699 	/* Check adding advertisement for 1G KX */
3700 	if (((vars->line_speed == SPEED_AUTO_NEG) &&
3701 	     (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) ||
3702 	    (vars->line_speed == SPEED_1000)) {
3703 		u16 sd_digital;
3704 		val16 |= (1<<5);
3705 
3706 		/* Enable CL37 1G Parallel Detect */
3707 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3708 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, &sd_digital);
3709 		bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3710 			 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2,
3711 				 (sd_digital | 0x1));
3712 
3713 		DP(NETIF_MSG_LINK, "Advertize 1G\n");
3714 	}
3715 	if (((vars->line_speed == SPEED_AUTO_NEG) &&
3716 	     (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) ||
3717 	    (vars->line_speed ==  SPEED_10000)) {
3718 		/* Check adding advertisement for 10G KR */
3719 		val16 |= (1<<7);
3720 		/* Enable 10G Parallel Detect */
3721 		bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
3722 				MDIO_WC_REG_PAR_DET_10G_CTRL, 1);
3723 
3724 		DP(NETIF_MSG_LINK, "Advertize 10G\n");
3725 	}
3726 
3727 	/* Set Transmit PMD settings */
3728 	lane = bnx2x_get_warpcore_lane(phy, params);
3729 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3730 		      MDIO_WC_REG_TX0_TX_DRIVER + 0x10*lane,
3731 		     ((0x02 << MDIO_WC_REG_TX0_TX_DRIVER_POST2_COEFF_OFFSET) |
3732 		      (0x06 << MDIO_WC_REG_TX0_TX_DRIVER_IDRIVER_OFFSET) |
3733 		      (0x09 << MDIO_WC_REG_TX0_TX_DRIVER_IPRE_DRIVER_OFFSET)));
3734 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3735 			 MDIO_WC_REG_CL72_USERB0_CL72_OS_DEF_CTRL,
3736 			 0x03f0);
3737 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3738 			 MDIO_WC_REG_CL72_USERB0_CL72_2P5_DEF_CTRL,
3739 			 0x03f0);
3740 
3741 	/* Advertised speeds */
3742 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
3743 			 MDIO_WC_REG_AN_IEEE1BLK_AN_ADVERTISEMENT1, val16);
3744 
3745 	/* Advertised and set FEC (Forward Error Correction) */
3746 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
3747 			 MDIO_WC_REG_AN_IEEE1BLK_AN_ADVERTISEMENT2,
3748 			 (MDIO_WC_REG_AN_IEEE1BLK_AN_ADV2_FEC_ABILITY |
3749 			  MDIO_WC_REG_AN_IEEE1BLK_AN_ADV2_FEC_REQ));
3750 
3751 	/* Enable CL37 BAM */
3752 	if (REG_RD(bp, params->shmem_base +
3753 		   offsetof(struct shmem_region, dev_info.
3754 			    port_hw_config[params->port].default_cfg)) &
3755 	    PORT_HW_CFG_ENABLE_BAM_ON_KR_ENABLED) {
3756 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3757 				MDIO_WC_REG_DIGITAL6_MP5_NEXTPAGECTRL, &bam37);
3758 		bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3759 			MDIO_WC_REG_DIGITAL6_MP5_NEXTPAGECTRL, bam37 | 1);
3760 		DP(NETIF_MSG_LINK, "Enable CL37 BAM on KR\n");
3761 	}
3762 
3763 	/* Advertise pause */
3764 	bnx2x_ext_phy_set_pause(params, phy, vars);
3765 
3766 	/*
3767 	 * Set KR Autoneg Work-Around flag for Warpcore version older than D108
3768 	 */
3769 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3770 			MDIO_WC_REG_UC_INFO_B1_VERSION, &val16);
3771 	if (val16 < 0xd108) {
3772 		DP(NETIF_MSG_LINK, "Enable AN KR work-around\n");
3773 		vars->rx_tx_asic_rst = MAX_KR_LINK_RETRY;
3774 	}
3775 
3776 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3777 			MDIO_WC_REG_DIGITAL5_MISC7, &val16);
3778 
3779 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3780 			 MDIO_WC_REG_DIGITAL5_MISC7, val16 | 0x100);
3781 
3782 	/* Over 1G - AN local device user page 1 */
3783 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3784 			MDIO_WC_REG_DIGITAL3_UP1, 0x1f);
3785 
3786 	/* Enable Autoneg */
3787 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
3788 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x1000);
3789 
3790 }
3791 
bnx2x_warpcore_set_10G_KR(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)3792 static void bnx2x_warpcore_set_10G_KR(struct bnx2x_phy *phy,
3793 				      struct link_params *params,
3794 				      struct link_vars *vars)
3795 {
3796 	struct bnx2x *bp = params->bp;
3797 	u16 val;
3798 
3799 	/* Disable Autoneg */
3800 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3801 			 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, 0x7);
3802 
3803 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
3804 			 MDIO_WC_REG_PAR_DET_10G_CTRL, 0);
3805 
3806 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3807 			 MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL, 0x3f00);
3808 
3809 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
3810 			 MDIO_WC_REG_AN_IEEE1BLK_AN_ADVERTISEMENT1, 0);
3811 
3812 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
3813 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x0);
3814 
3815 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3816 			MDIO_WC_REG_DIGITAL3_UP1, 0x1);
3817 
3818 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3819 			 MDIO_WC_REG_DIGITAL5_MISC7, 0xa);
3820 
3821 	/* Disable CL36 PCS Tx */
3822 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3823 			MDIO_WC_REG_XGXSBLK1_LANECTRL0, 0x0);
3824 
3825 	/* Double Wide Single Data Rate @ pll rate */
3826 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3827 			MDIO_WC_REG_XGXSBLK1_LANECTRL1, 0xFFFF);
3828 
3829 	/* Leave cl72 training enable, needed for KR */
3830 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD,
3831 		MDIO_WC_REG_PMD_IEEE9BLK_TENGBASE_KR_PMD_CONTROL_REGISTER_150,
3832 		0x2);
3833 
3834 	/* Leave CL72 enabled */
3835 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3836 			 MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL,
3837 			 &val);
3838 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3839 			 MDIO_WC_REG_CL72_USERB0_CL72_MISC1_CONTROL,
3840 			 val | 0x3800);
3841 
3842 	/* Set speed via PMA/PMD register */
3843 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD,
3844 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x2040);
3845 
3846 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD,
3847 			 MDIO_WC_REG_IEEE0BLK_AUTONEGNP, 0xB);
3848 
3849 	/*Enable encoded forced speed */
3850 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3851 			 MDIO_WC_REG_SERDESDIGITAL_MISC2, 0x30);
3852 
3853 	/* Turn TX scramble payload only the 64/66 scrambler */
3854 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3855 			 MDIO_WC_REG_TX66_CONTROL, 0x9);
3856 
3857 	/* Turn RX scramble payload only the 64/66 scrambler */
3858 	bnx2x_cl45_read_or_write(bp, phy, MDIO_WC_DEVAD,
3859 				 MDIO_WC_REG_RX66_CONTROL, 0xF9);
3860 
3861 	/* set and clear loopback to cause a reset to 64/66 decoder */
3862 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3863 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x4000);
3864 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3865 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x0);
3866 
3867 }
3868 
bnx2x_warpcore_set_10G_XFI(struct bnx2x_phy * phy,struct link_params * params,u8 is_xfi)3869 static void bnx2x_warpcore_set_10G_XFI(struct bnx2x_phy *phy,
3870 				       struct link_params *params,
3871 				       u8 is_xfi)
3872 {
3873 	struct bnx2x *bp = params->bp;
3874 	u16 misc1_val, tap_val, tx_driver_val, lane, val;
3875 	/* Hold rxSeqStart */
3876 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3877 			MDIO_WC_REG_DSC2B0_DSC_MISC_CTRL0, &val);
3878 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3879 			 MDIO_WC_REG_DSC2B0_DSC_MISC_CTRL0, (val | 0x8000));
3880 
3881 	/* Hold tx_fifo_reset */
3882 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3883 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X3, &val);
3884 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3885 			 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X3, (val | 0x1));
3886 
3887 	/* Disable CL73 AN */
3888 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0);
3889 
3890 	/* Disable 100FX Enable and Auto-Detect */
3891 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3892 			MDIO_WC_REG_FX100_CTRL1, &val);
3893 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3894 			 MDIO_WC_REG_FX100_CTRL1, (val & 0xFFFA));
3895 
3896 	/* Disable 100FX Idle detect */
3897 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3898 			MDIO_WC_REG_FX100_CTRL3, &val);
3899 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3900 			 MDIO_WC_REG_FX100_CTRL3, (val | 0x0080));
3901 
3902 	/* Set Block address to Remote PHY & Clear forced_speed[5] */
3903 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3904 			MDIO_WC_REG_DIGITAL4_MISC3, &val);
3905 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3906 			 MDIO_WC_REG_DIGITAL4_MISC3, (val & 0xFF7F));
3907 
3908 	/* Turn off auto-detect & fiber mode */
3909 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3910 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1, &val);
3911 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3912 			 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1,
3913 			 (val & 0xFFEE));
3914 
3915 	/* Set filter_force_link, disable_false_link and parallel_detect */
3916 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3917 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, &val);
3918 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3919 			 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2,
3920 			 ((val | 0x0006) & 0xFFFE));
3921 
3922 	/* Set XFI / SFI */
3923 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3924 			MDIO_WC_REG_SERDESDIGITAL_MISC1, &misc1_val);
3925 
3926 	misc1_val &= ~(0x1f);
3927 
3928 	if (is_xfi) {
3929 		misc1_val |= 0x5;
3930 		tap_val = ((0x08 << MDIO_WC_REG_TX_FIR_TAP_POST_TAP_OFFSET) |
3931 			   (0x37 << MDIO_WC_REG_TX_FIR_TAP_MAIN_TAP_OFFSET) |
3932 			   (0x00 << MDIO_WC_REG_TX_FIR_TAP_PRE_TAP_OFFSET));
3933 		tx_driver_val =
3934 		      ((0x00 << MDIO_WC_REG_TX0_TX_DRIVER_POST2_COEFF_OFFSET) |
3935 		       (0x02 << MDIO_WC_REG_TX0_TX_DRIVER_IDRIVER_OFFSET) |
3936 		       (0x03 << MDIO_WC_REG_TX0_TX_DRIVER_IPRE_DRIVER_OFFSET));
3937 
3938 	} else {
3939 		misc1_val |= 0x9;
3940 		tap_val = ((0x12 << MDIO_WC_REG_TX_FIR_TAP_POST_TAP_OFFSET) |
3941 			   (0x2d << MDIO_WC_REG_TX_FIR_TAP_MAIN_TAP_OFFSET) |
3942 			   (0x00 << MDIO_WC_REG_TX_FIR_TAP_PRE_TAP_OFFSET));
3943 		tx_driver_val =
3944 		      ((0x02 << MDIO_WC_REG_TX0_TX_DRIVER_POST2_COEFF_OFFSET) |
3945 		       (0x02 << MDIO_WC_REG_TX0_TX_DRIVER_IDRIVER_OFFSET) |
3946 		       (0x02 << MDIO_WC_REG_TX0_TX_DRIVER_IPRE_DRIVER_OFFSET));
3947 	}
3948 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3949 			 MDIO_WC_REG_SERDESDIGITAL_MISC1, misc1_val);
3950 
3951 	/* Set Transmit PMD settings */
3952 	lane = bnx2x_get_warpcore_lane(phy, params);
3953 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3954 			 MDIO_WC_REG_TX_FIR_TAP,
3955 			 tap_val | MDIO_WC_REG_TX_FIR_TAP_ENABLE);
3956 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3957 			 MDIO_WC_REG_TX0_TX_DRIVER + 0x10*lane,
3958 			 tx_driver_val);
3959 
3960 	/* Enable fiber mode, enable and invert sig_det */
3961 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3962 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1, &val);
3963 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3964 			 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1, val | 0xd);
3965 
3966 	/* Set Block address to Remote PHY & Set forced_speed[5], 40bit mode */
3967 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3968 			MDIO_WC_REG_DIGITAL4_MISC3, &val);
3969 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3970 			 MDIO_WC_REG_DIGITAL4_MISC3, val | 0x8080);
3971 
3972 	/* 10G XFI Full Duplex */
3973 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3974 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x100);
3975 
3976 	/* Release tx_fifo_reset */
3977 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3978 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X3, &val);
3979 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3980 			 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X3, val & 0xFFFE);
3981 
3982 	/* Release rxSeqStart */
3983 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
3984 			MDIO_WC_REG_DSC2B0_DSC_MISC_CTRL0, &val);
3985 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
3986 			 MDIO_WC_REG_DSC2B0_DSC_MISC_CTRL0, (val & 0x7FFF));
3987 }
3988 
bnx2x_warpcore_set_20G_KR2(struct bnx2x * bp,struct bnx2x_phy * phy)3989 static void bnx2x_warpcore_set_20G_KR2(struct bnx2x *bp,
3990 				       struct bnx2x_phy *phy)
3991 {
3992 	DP(NETIF_MSG_LINK, "KR2 still not supported !!!\n");
3993 }
3994 
bnx2x_warpcore_set_20G_DXGXS(struct bnx2x * bp,struct bnx2x_phy * phy,u16 lane)3995 static void bnx2x_warpcore_set_20G_DXGXS(struct bnx2x *bp,
3996 					 struct bnx2x_phy *phy,
3997 					 u16 lane)
3998 {
3999 	/* Rx0 anaRxControl1G */
4000 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4001 			 MDIO_WC_REG_RX0_ANARXCONTROL1G, 0x90);
4002 
4003 	/* Rx2 anaRxControl1G */
4004 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4005 			 MDIO_WC_REG_RX2_ANARXCONTROL1G, 0x90);
4006 
4007 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4008 			 MDIO_WC_REG_RX66_SCW0, 0xE070);
4009 
4010 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4011 			 MDIO_WC_REG_RX66_SCW1, 0xC0D0);
4012 
4013 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4014 			 MDIO_WC_REG_RX66_SCW2, 0xA0B0);
4015 
4016 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4017 			 MDIO_WC_REG_RX66_SCW3, 0x8090);
4018 
4019 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4020 			 MDIO_WC_REG_RX66_SCW0_MASK, 0xF0F0);
4021 
4022 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4023 			 MDIO_WC_REG_RX66_SCW1_MASK, 0xF0F0);
4024 
4025 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4026 			 MDIO_WC_REG_RX66_SCW2_MASK, 0xF0F0);
4027 
4028 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4029 			 MDIO_WC_REG_RX66_SCW3_MASK, 0xF0F0);
4030 
4031 	/* Serdes Digital Misc1 */
4032 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4033 			 MDIO_WC_REG_SERDESDIGITAL_MISC1, 0x6008);
4034 
4035 	/* Serdes Digital4 Misc3 */
4036 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4037 			 MDIO_WC_REG_DIGITAL4_MISC3, 0x8088);
4038 
4039 	/* Set Transmit PMD settings */
4040 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4041 			 MDIO_WC_REG_TX_FIR_TAP,
4042 			((0x12 << MDIO_WC_REG_TX_FIR_TAP_POST_TAP_OFFSET) |
4043 			 (0x2d << MDIO_WC_REG_TX_FIR_TAP_MAIN_TAP_OFFSET) |
4044 			 (0x00 << MDIO_WC_REG_TX_FIR_TAP_PRE_TAP_OFFSET) |
4045 			 MDIO_WC_REG_TX_FIR_TAP_ENABLE));
4046 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4047 		      MDIO_WC_REG_TX0_TX_DRIVER + 0x10*lane,
4048 		     ((0x02 << MDIO_WC_REG_TX0_TX_DRIVER_POST2_COEFF_OFFSET) |
4049 		      (0x02 << MDIO_WC_REG_TX0_TX_DRIVER_IDRIVER_OFFSET) |
4050 		      (0x02 << MDIO_WC_REG_TX0_TX_DRIVER_IPRE_DRIVER_OFFSET)));
4051 }
4052 
bnx2x_warpcore_set_sgmii_speed(struct bnx2x_phy * phy,struct link_params * params,u8 fiber_mode,u8 always_autoneg)4053 static void bnx2x_warpcore_set_sgmii_speed(struct bnx2x_phy *phy,
4054 					   struct link_params *params,
4055 					   u8 fiber_mode,
4056 					   u8 always_autoneg)
4057 {
4058 	struct bnx2x *bp = params->bp;
4059 	u16 val16, digctrl_kx1, digctrl_kx2;
4060 
4061 	/* Clear XFI clock comp in non-10G single lane mode. */
4062 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4063 			MDIO_WC_REG_RX66_CONTROL, &val16);
4064 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4065 			 MDIO_WC_REG_RX66_CONTROL, val16 & ~(3<<13));
4066 
4067 	if (always_autoneg || phy->req_line_speed == SPEED_AUTO_NEG) {
4068 		/* SGMII Autoneg */
4069 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4070 				MDIO_WC_REG_COMBO_IEEE0_MIICTRL, &val16);
4071 		bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4072 				 MDIO_WC_REG_COMBO_IEEE0_MIICTRL,
4073 				 val16 | 0x1000);
4074 		DP(NETIF_MSG_LINK, "set SGMII AUTONEG\n");
4075 	} else {
4076 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4077 				MDIO_WC_REG_COMBO_IEEE0_MIICTRL, &val16);
4078 		val16 &= 0xcebf;
4079 		switch (phy->req_line_speed) {
4080 		case SPEED_10:
4081 			break;
4082 		case SPEED_100:
4083 			val16 |= 0x2000;
4084 			break;
4085 		case SPEED_1000:
4086 			val16 |= 0x0040;
4087 			break;
4088 		default:
4089 			DP(NETIF_MSG_LINK,
4090 			   "Speed not supported: 0x%x\n", phy->req_line_speed);
4091 			return;
4092 		}
4093 
4094 		if (phy->req_duplex == DUPLEX_FULL)
4095 			val16 |= 0x0100;
4096 
4097 		bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4098 				MDIO_WC_REG_COMBO_IEEE0_MIICTRL, val16);
4099 
4100 		DP(NETIF_MSG_LINK, "set SGMII force speed %d\n",
4101 			       phy->req_line_speed);
4102 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4103 				MDIO_WC_REG_COMBO_IEEE0_MIICTRL, &val16);
4104 		DP(NETIF_MSG_LINK, "  (readback) %x\n", val16);
4105 	}
4106 
4107 	/* SGMII Slave mode and disable signal detect */
4108 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4109 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1, &digctrl_kx1);
4110 	if (fiber_mode)
4111 		digctrl_kx1 = 1;
4112 	else
4113 		digctrl_kx1 &= 0xff4a;
4114 
4115 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4116 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1,
4117 			digctrl_kx1);
4118 
4119 	/* Turn off parallel detect */
4120 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4121 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, &digctrl_kx2);
4122 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4123 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2,
4124 			(digctrl_kx2 & ~(1<<2)));
4125 
4126 	/* Re-enable parallel detect */
4127 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4128 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2,
4129 			(digctrl_kx2 | (1<<2)));
4130 
4131 	/* Enable autodet */
4132 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4133 			MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1,
4134 			(digctrl_kx1 | 0x10));
4135 }
4136 
bnx2x_warpcore_reset_lane(struct bnx2x * bp,struct bnx2x_phy * phy,u8 reset)4137 static void bnx2x_warpcore_reset_lane(struct bnx2x *bp,
4138 				      struct bnx2x_phy *phy,
4139 				      u8 reset)
4140 {
4141 	u16 val;
4142 	/* Take lane out of reset after configuration is finished */
4143 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4144 			MDIO_WC_REG_DIGITAL5_MISC6, &val);
4145 	if (reset)
4146 		val |= 0xC000;
4147 	else
4148 		val &= 0x3FFF;
4149 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4150 			 MDIO_WC_REG_DIGITAL5_MISC6, val);
4151 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4152 			 MDIO_WC_REG_DIGITAL5_MISC6, &val);
4153 }
4154 /* Clear SFI/XFI link settings registers */
bnx2x_warpcore_clear_regs(struct bnx2x_phy * phy,struct link_params * params,u16 lane)4155 static void bnx2x_warpcore_clear_regs(struct bnx2x_phy *phy,
4156 				      struct link_params *params,
4157 				      u16 lane)
4158 {
4159 	struct bnx2x *bp = params->bp;
4160 	u16 val16;
4161 
4162 	/* Set XFI clock comp as default. */
4163 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4164 			MDIO_WC_REG_RX66_CONTROL, &val16);
4165 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4166 			 MDIO_WC_REG_RX66_CONTROL, val16 | (3<<13));
4167 
4168 	bnx2x_warpcore_reset_lane(bp, phy, 1);
4169 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0);
4170 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4171 			 MDIO_WC_REG_FX100_CTRL1, 0x014a);
4172 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4173 			 MDIO_WC_REG_FX100_CTRL3, 0x0800);
4174 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4175 			 MDIO_WC_REG_DIGITAL4_MISC3, 0x8008);
4176 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4177 			 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X1, 0x0195);
4178 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4179 			 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X2, 0x0007);
4180 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4181 			 MDIO_WC_REG_SERDESDIGITAL_CONTROL1000X3, 0x0002);
4182 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4183 			 MDIO_WC_REG_SERDESDIGITAL_MISC1, 0x6000);
4184 	lane = bnx2x_get_warpcore_lane(phy, params);
4185 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4186 			 MDIO_WC_REG_TX_FIR_TAP, 0x0000);
4187 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4188 			 MDIO_WC_REG_TX0_TX_DRIVER + 0x10*lane, 0x0990);
4189 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4190 			 MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x2040);
4191 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4192 			 MDIO_WC_REG_COMBO_IEEE0_MIICTRL, 0x0140);
4193 	bnx2x_warpcore_reset_lane(bp, phy, 0);
4194 }
4195 
bnx2x_get_mod_abs_int_cfg(struct bnx2x * bp,u32 chip_id,u32 shmem_base,u8 port,u8 * gpio_num,u8 * gpio_port)4196 static int bnx2x_get_mod_abs_int_cfg(struct bnx2x *bp,
4197 						u32 chip_id,
4198 						u32 shmem_base, u8 port,
4199 						u8 *gpio_num, u8 *gpio_port)
4200 {
4201 	u32 cfg_pin;
4202 	*gpio_num = 0;
4203 	*gpio_port = 0;
4204 	if (CHIP_IS_E3(bp)) {
4205 		cfg_pin = (REG_RD(bp, shmem_base +
4206 				offsetof(struct shmem_region,
4207 				dev_info.port_hw_config[port].e3_sfp_ctrl)) &
4208 				PORT_HW_CFG_E3_MOD_ABS_MASK) >>
4209 				PORT_HW_CFG_E3_MOD_ABS_SHIFT;
4210 
4211 		/*
4212 		 * Should not happen. This function called upon interrupt
4213 		 * triggered by GPIO ( since EPIO can only generate interrupts
4214 		 * to MCP).
4215 		 * So if this function was called and none of the GPIOs was set,
4216 		 * it means the shit hit the fan.
4217 		 */
4218 		if ((cfg_pin < PIN_CFG_GPIO0_P0) ||
4219 		    (cfg_pin > PIN_CFG_GPIO3_P1)) {
4220 			DP(NETIF_MSG_LINK,
4221 			   "ERROR: Invalid cfg pin %x for module detect indication\n",
4222 			   cfg_pin);
4223 			return -EINVAL;
4224 		}
4225 
4226 		*gpio_num = (cfg_pin - PIN_CFG_GPIO0_P0) & 0x3;
4227 		*gpio_port = (cfg_pin - PIN_CFG_GPIO0_P0) >> 2;
4228 	} else {
4229 		*gpio_num = MISC_REGISTERS_GPIO_3;
4230 		*gpio_port = port;
4231 	}
4232 	DP(NETIF_MSG_LINK, "MOD_ABS int GPIO%d_P%d\n", *gpio_num, *gpio_port);
4233 	return 0;
4234 }
4235 
bnx2x_is_sfp_module_plugged(struct bnx2x_phy * phy,struct link_params * params)4236 static int bnx2x_is_sfp_module_plugged(struct bnx2x_phy *phy,
4237 				       struct link_params *params)
4238 {
4239 	struct bnx2x *bp = params->bp;
4240 	u8 gpio_num, gpio_port;
4241 	u32 gpio_val;
4242 	if (bnx2x_get_mod_abs_int_cfg(bp, params->chip_id,
4243 				      params->shmem_base, params->port,
4244 				      &gpio_num, &gpio_port) != 0)
4245 		return 0;
4246 	gpio_val = bnx2x_get_gpio(bp, gpio_num, gpio_port);
4247 
4248 	/* Call the handling function in case module is detected */
4249 	if (gpio_val == 0)
4250 		return 1;
4251 	else
4252 		return 0;
4253 }
bnx2x_warpcore_get_sigdet(struct bnx2x_phy * phy,struct link_params * params)4254 static int bnx2x_warpcore_get_sigdet(struct bnx2x_phy *phy,
4255 					struct link_params *params)
4256 {
4257 	u16 gp2_status_reg0, lane;
4258 	struct bnx2x *bp = params->bp;
4259 
4260 	lane = bnx2x_get_warpcore_lane(phy, params);
4261 
4262 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD, MDIO_WC_REG_GP2_STATUS_GP_2_0,
4263 				 &gp2_status_reg0);
4264 
4265 	return (gp2_status_reg0 >> (8+lane)) & 0x1;
4266 }
4267 
bnx2x_warpcore_config_runtime(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)4268 static void bnx2x_warpcore_config_runtime(struct bnx2x_phy *phy,
4269 				       struct link_params *params,
4270 				       struct link_vars *vars)
4271 {
4272 	struct bnx2x *bp = params->bp;
4273 	u32 serdes_net_if;
4274 	u16 gp_status1 = 0, lnkup = 0, lnkup_kr = 0;
4275 	u16 lane = bnx2x_get_warpcore_lane(phy, params);
4276 
4277 	vars->turn_to_run_wc_rt = vars->turn_to_run_wc_rt ? 0 : 1;
4278 
4279 	if (!vars->turn_to_run_wc_rt)
4280 		return;
4281 
4282 	/* return if there is no link partner */
4283 	if (!(bnx2x_warpcore_get_sigdet(phy, params))) {
4284 		DP(NETIF_MSG_LINK, "bnx2x_warpcore_get_sigdet false\n");
4285 		return;
4286 	}
4287 
4288 	if (vars->rx_tx_asic_rst) {
4289 		serdes_net_if = (REG_RD(bp, params->shmem_base +
4290 				offsetof(struct shmem_region, dev_info.
4291 				port_hw_config[params->port].default_cfg)) &
4292 				PORT_HW_CFG_NET_SERDES_IF_MASK);
4293 
4294 		switch (serdes_net_if) {
4295 		case PORT_HW_CFG_NET_SERDES_IF_KR:
4296 			/* Do we get link yet? */
4297 			bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD, 0x81d1,
4298 								&gp_status1);
4299 			lnkup = (gp_status1 >> (8+lane)) & 0x1;/* 1G */
4300 				/*10G KR*/
4301 			lnkup_kr = (gp_status1 >> (12+lane)) & 0x1;
4302 
4303 			DP(NETIF_MSG_LINK,
4304 				"gp_status1 0x%x\n", gp_status1);
4305 
4306 			if (lnkup_kr || lnkup) {
4307 					vars->rx_tx_asic_rst = 0;
4308 					DP(NETIF_MSG_LINK,
4309 					"link up, rx_tx_asic_rst 0x%x\n",
4310 					vars->rx_tx_asic_rst);
4311 			} else {
4312 				/*reset the lane to see if link comes up.*/
4313 				bnx2x_warpcore_reset_lane(bp, phy, 1);
4314 				bnx2x_warpcore_reset_lane(bp, phy, 0);
4315 
4316 				/* restart Autoneg */
4317 				bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD,
4318 					MDIO_WC_REG_IEEE0BLK_MIICNTL, 0x1200);
4319 
4320 				vars->rx_tx_asic_rst--;
4321 				DP(NETIF_MSG_LINK, "0x%x retry left\n",
4322 				vars->rx_tx_asic_rst);
4323 			}
4324 			break;
4325 
4326 		default:
4327 			break;
4328 		}
4329 
4330 	} /*params->rx_tx_asic_rst*/
4331 
4332 }
4333 
bnx2x_warpcore_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)4334 static void bnx2x_warpcore_config_init(struct bnx2x_phy *phy,
4335 				       struct link_params *params,
4336 				       struct link_vars *vars)
4337 {
4338 	struct bnx2x *bp = params->bp;
4339 	u32 serdes_net_if;
4340 	u8 fiber_mode;
4341 	u16 lane = bnx2x_get_warpcore_lane(phy, params);
4342 	serdes_net_if = (REG_RD(bp, params->shmem_base +
4343 			 offsetof(struct shmem_region, dev_info.
4344 				  port_hw_config[params->port].default_cfg)) &
4345 			 PORT_HW_CFG_NET_SERDES_IF_MASK);
4346 	DP(NETIF_MSG_LINK, "Begin Warpcore init, link_speed %d, "
4347 			   "serdes_net_if = 0x%x\n",
4348 		       vars->line_speed, serdes_net_if);
4349 	bnx2x_set_aer_mmd(params, phy);
4350 
4351 	vars->phy_flags |= PHY_XGXS_FLAG;
4352 	if ((serdes_net_if == PORT_HW_CFG_NET_SERDES_IF_SGMII) ||
4353 	    (phy->req_line_speed &&
4354 	     ((phy->req_line_speed == SPEED_100) ||
4355 	      (phy->req_line_speed == SPEED_10)))) {
4356 		vars->phy_flags |= PHY_SGMII_FLAG;
4357 		DP(NETIF_MSG_LINK, "Setting SGMII mode\n");
4358 		bnx2x_warpcore_clear_regs(phy, params, lane);
4359 		bnx2x_warpcore_set_sgmii_speed(phy, params, 0, 1);
4360 	} else {
4361 		switch (serdes_net_if) {
4362 		case PORT_HW_CFG_NET_SERDES_IF_KR:
4363 			/* Enable KR Auto Neg */
4364 			if (params->loopback_mode == LOOPBACK_NONE)
4365 				bnx2x_warpcore_enable_AN_KR(phy, params, vars);
4366 			else {
4367 				DP(NETIF_MSG_LINK, "Setting KR 10G-Force\n");
4368 				bnx2x_warpcore_set_10G_KR(phy, params, vars);
4369 			}
4370 			break;
4371 
4372 		case PORT_HW_CFG_NET_SERDES_IF_XFI:
4373 			bnx2x_warpcore_clear_regs(phy, params, lane);
4374 			if (vars->line_speed == SPEED_10000) {
4375 				DP(NETIF_MSG_LINK, "Setting 10G XFI\n");
4376 				bnx2x_warpcore_set_10G_XFI(phy, params, 1);
4377 			} else {
4378 				if (SINGLE_MEDIA_DIRECT(params)) {
4379 					DP(NETIF_MSG_LINK, "1G Fiber\n");
4380 					fiber_mode = 1;
4381 				} else {
4382 					DP(NETIF_MSG_LINK, "10/100/1G SGMII\n");
4383 					fiber_mode = 0;
4384 				}
4385 				bnx2x_warpcore_set_sgmii_speed(phy,
4386 								params,
4387 								fiber_mode,
4388 								0);
4389 			}
4390 
4391 			break;
4392 
4393 		case PORT_HW_CFG_NET_SERDES_IF_SFI:
4394 
4395 			bnx2x_warpcore_clear_regs(phy, params, lane);
4396 			if (vars->line_speed == SPEED_10000) {
4397 				DP(NETIF_MSG_LINK, "Setting 10G SFI\n");
4398 				bnx2x_warpcore_set_10G_XFI(phy, params, 0);
4399 			} else if (vars->line_speed == SPEED_1000) {
4400 				DP(NETIF_MSG_LINK, "Setting 1G Fiber\n");
4401 				bnx2x_warpcore_set_sgmii_speed(
4402 						phy, params, 1, 0);
4403 			}
4404 			/* Issue Module detection */
4405 			if (bnx2x_is_sfp_module_plugged(phy, params))
4406 				bnx2x_sfp_module_detection(phy, params);
4407 			break;
4408 
4409 		case PORT_HW_CFG_NET_SERDES_IF_DXGXS:
4410 			if (vars->line_speed != SPEED_20000) {
4411 				DP(NETIF_MSG_LINK, "Speed not supported yet\n");
4412 				return;
4413 			}
4414 			DP(NETIF_MSG_LINK, "Setting 20G DXGXS\n");
4415 			bnx2x_warpcore_set_20G_DXGXS(bp, phy, lane);
4416 			/* Issue Module detection */
4417 
4418 			bnx2x_sfp_module_detection(phy, params);
4419 			break;
4420 
4421 		case PORT_HW_CFG_NET_SERDES_IF_KR2:
4422 			if (vars->line_speed != SPEED_20000) {
4423 				DP(NETIF_MSG_LINK, "Speed not supported yet\n");
4424 				return;
4425 			}
4426 			DP(NETIF_MSG_LINK, "Setting 20G KR2\n");
4427 			bnx2x_warpcore_set_20G_KR2(bp, phy);
4428 			break;
4429 
4430 		default:
4431 			DP(NETIF_MSG_LINK,
4432 			   "Unsupported Serdes Net Interface 0x%x\n",
4433 			   serdes_net_if);
4434 			return;
4435 		}
4436 	}
4437 
4438 	/* Take lane out of reset after configuration is finished */
4439 	bnx2x_warpcore_reset_lane(bp, phy, 0);
4440 	DP(NETIF_MSG_LINK, "Exit config init\n");
4441 }
4442 
bnx2x_sfp_e3_set_transmitter(struct link_params * params,struct bnx2x_phy * phy,u8 tx_en)4443 static void bnx2x_sfp_e3_set_transmitter(struct link_params *params,
4444 					 struct bnx2x_phy *phy,
4445 					 u8 tx_en)
4446 {
4447 	struct bnx2x *bp = params->bp;
4448 	u32 cfg_pin;
4449 	u8 port = params->port;
4450 
4451 	cfg_pin = REG_RD(bp, params->shmem_base +
4452 				offsetof(struct shmem_region,
4453 				dev_info.port_hw_config[port].e3_sfp_ctrl)) &
4454 				PORT_HW_CFG_TX_LASER_MASK;
4455 	/* Set the !tx_en since this pin is DISABLE_TX_LASER */
4456 	DP(NETIF_MSG_LINK, "Setting WC TX to %d\n", tx_en);
4457 	/* For 20G, the expected pin to be used is 3 pins after the current */
4458 
4459 	bnx2x_set_cfg_pin(bp, cfg_pin, tx_en ^ 1);
4460 	if (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_20G)
4461 		bnx2x_set_cfg_pin(bp, cfg_pin + 3, tx_en ^ 1);
4462 }
4463 
bnx2x_warpcore_link_reset(struct bnx2x_phy * phy,struct link_params * params)4464 static void bnx2x_warpcore_link_reset(struct bnx2x_phy *phy,
4465 				      struct link_params *params)
4466 {
4467 	struct bnx2x *bp = params->bp;
4468 	u16 val16;
4469 	bnx2x_sfp_e3_set_transmitter(params, phy, 0);
4470 	bnx2x_set_mdio_clk(bp, params->chip_id, params->port);
4471 	bnx2x_set_aer_mmd(params, phy);
4472 	/* Global register */
4473 	bnx2x_warpcore_reset_lane(bp, phy, 1);
4474 
4475 	/* Clear loopback settings (if any) */
4476 	/* 10G & 20G */
4477 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4478 			MDIO_WC_REG_COMBO_IEEE0_MIICTRL, &val16);
4479 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4480 			 MDIO_WC_REG_COMBO_IEEE0_MIICTRL, val16 &
4481 			 0xBFFF);
4482 
4483 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4484 			MDIO_WC_REG_IEEE0BLK_MIICNTL, &val16);
4485 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4486 			MDIO_WC_REG_IEEE0BLK_MIICNTL, val16 & 0xfffe);
4487 
4488 	/* Update those 1-copy registers */
4489 	CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
4490 			  MDIO_AER_BLOCK_AER_REG, 0);
4491 		/* Enable 1G MDIO (1-copy) */
4492 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4493 			MDIO_WC_REG_XGXSBLK0_XGXSCONTROL,
4494 			&val16);
4495 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4496 			 MDIO_WC_REG_XGXSBLK0_XGXSCONTROL,
4497 			 val16 & ~0x10);
4498 
4499 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4500 			MDIO_WC_REG_XGXSBLK1_LANECTRL2, &val16);
4501 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4502 			 MDIO_WC_REG_XGXSBLK1_LANECTRL2,
4503 			 val16 & 0xff00);
4504 
4505 }
4506 
bnx2x_set_warpcore_loopback(struct bnx2x_phy * phy,struct link_params * params)4507 static void bnx2x_set_warpcore_loopback(struct bnx2x_phy *phy,
4508 					struct link_params *params)
4509 {
4510 	struct bnx2x *bp = params->bp;
4511 	u16 val16;
4512 	u32 lane;
4513 	DP(NETIF_MSG_LINK, "Setting Warpcore loopback type %x, speed %d\n",
4514 		       params->loopback_mode, phy->req_line_speed);
4515 
4516 	if (phy->req_line_speed < SPEED_10000) {
4517 		/* 10/100/1000 */
4518 
4519 		/* Update those 1-copy registers */
4520 		CL22_WR_OVER_CL45(bp, phy, MDIO_REG_BANK_AER_BLOCK,
4521 				  MDIO_AER_BLOCK_AER_REG, 0);
4522 		/* Enable 1G MDIO (1-copy) */
4523 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4524 				MDIO_WC_REG_XGXSBLK0_XGXSCONTROL,
4525 				&val16);
4526 		bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4527 				MDIO_WC_REG_XGXSBLK0_XGXSCONTROL,
4528 				val16 | 0x10);
4529 		/* Set 1G loopback based on lane (1-copy) */
4530 		lane = bnx2x_get_warpcore_lane(phy, params);
4531 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4532 				MDIO_WC_REG_XGXSBLK1_LANECTRL2, &val16);
4533 		bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4534 				MDIO_WC_REG_XGXSBLK1_LANECTRL2,
4535 				val16 | (1<<lane));
4536 
4537 		/* Switch back to 4-copy registers */
4538 		bnx2x_set_aer_mmd(params, phy);
4539 	} else {
4540 		/* 10G & 20G */
4541 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4542 				MDIO_WC_REG_COMBO_IEEE0_MIICTRL, &val16);
4543 		bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4544 				MDIO_WC_REG_COMBO_IEEE0_MIICTRL, val16 |
4545 				 0x4000);
4546 
4547 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
4548 				MDIO_WC_REG_IEEE0BLK_MIICNTL, &val16);
4549 		bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
4550 				MDIO_WC_REG_IEEE0BLK_MIICNTL, val16 | 0x1);
4551 	}
4552 }
4553 
4554 
bnx2x_sync_link(struct link_params * params,struct link_vars * vars)4555 void bnx2x_sync_link(struct link_params *params,
4556 			   struct link_vars *vars)
4557 {
4558 	struct bnx2x *bp = params->bp;
4559 	u8 link_10g_plus;
4560 	if (vars->link_status & LINK_STATUS_PHYSICAL_LINK_FLAG)
4561 		vars->phy_flags |= PHY_PHYSICAL_LINK_FLAG;
4562 	vars->link_up = (vars->link_status & LINK_STATUS_LINK_UP);
4563 	if (vars->link_up) {
4564 		DP(NETIF_MSG_LINK, "phy link up\n");
4565 
4566 		vars->phy_link_up = 1;
4567 		vars->duplex = DUPLEX_FULL;
4568 		switch (vars->link_status &
4569 			LINK_STATUS_SPEED_AND_DUPLEX_MASK) {
4570 			case LINK_10THD:
4571 				vars->duplex = DUPLEX_HALF;
4572 				/* fall thru */
4573 			case LINK_10TFD:
4574 				vars->line_speed = SPEED_10;
4575 				break;
4576 
4577 			case LINK_100TXHD:
4578 				vars->duplex = DUPLEX_HALF;
4579 				/* fall thru */
4580 			case LINK_100T4:
4581 			case LINK_100TXFD:
4582 				vars->line_speed = SPEED_100;
4583 				break;
4584 
4585 			case LINK_1000THD:
4586 				vars->duplex = DUPLEX_HALF;
4587 				/* fall thru */
4588 			case LINK_1000TFD:
4589 				vars->line_speed = SPEED_1000;
4590 				break;
4591 
4592 			case LINK_2500THD:
4593 				vars->duplex = DUPLEX_HALF;
4594 				/* fall thru */
4595 			case LINK_2500TFD:
4596 				vars->line_speed = SPEED_2500;
4597 				break;
4598 
4599 			case LINK_10GTFD:
4600 				vars->line_speed = SPEED_10000;
4601 				break;
4602 			case LINK_20GTFD:
4603 				vars->line_speed = SPEED_20000;
4604 				break;
4605 			default:
4606 				break;
4607 		}
4608 		vars->flow_ctrl = 0;
4609 		if (vars->link_status & LINK_STATUS_TX_FLOW_CONTROL_ENABLED)
4610 			vars->flow_ctrl |= BNX2X_FLOW_CTRL_TX;
4611 
4612 		if (vars->link_status & LINK_STATUS_RX_FLOW_CONTROL_ENABLED)
4613 			vars->flow_ctrl |= BNX2X_FLOW_CTRL_RX;
4614 
4615 		if (!vars->flow_ctrl)
4616 			vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
4617 
4618 		if (vars->line_speed &&
4619 		    ((vars->line_speed == SPEED_10) ||
4620 		     (vars->line_speed == SPEED_100))) {
4621 			vars->phy_flags |= PHY_SGMII_FLAG;
4622 		} else {
4623 			vars->phy_flags &= ~PHY_SGMII_FLAG;
4624 		}
4625 		if (vars->line_speed &&
4626 		    USES_WARPCORE(bp) &&
4627 		    (vars->line_speed == SPEED_1000))
4628 			vars->phy_flags |= PHY_SGMII_FLAG;
4629 		/* anything 10 and over uses the bmac */
4630 		link_10g_plus = (vars->line_speed >= SPEED_10000);
4631 
4632 		if (link_10g_plus) {
4633 			if (USES_WARPCORE(bp))
4634 				vars->mac_type = MAC_TYPE_XMAC;
4635 			else
4636 				vars->mac_type = MAC_TYPE_BMAC;
4637 		} else {
4638 			if (USES_WARPCORE(bp))
4639 				vars->mac_type = MAC_TYPE_UMAC;
4640 			else
4641 				vars->mac_type = MAC_TYPE_EMAC;
4642 		}
4643 	} else { /* link down */
4644 		DP(NETIF_MSG_LINK, "phy link down\n");
4645 
4646 		vars->phy_link_up = 0;
4647 
4648 		vars->line_speed = 0;
4649 		vars->duplex = DUPLEX_FULL;
4650 		vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
4651 
4652 		/* indicate no mac active */
4653 		vars->mac_type = MAC_TYPE_NONE;
4654 		if (vars->link_status & LINK_STATUS_PHYSICAL_LINK_FLAG)
4655 			vars->phy_flags |= PHY_HALF_OPEN_CONN_FLAG;
4656 	}
4657 }
4658 
bnx2x_link_status_update(struct link_params * params,struct link_vars * vars)4659 void bnx2x_link_status_update(struct link_params *params,
4660 			      struct link_vars *vars)
4661 {
4662 	struct bnx2x *bp = params->bp;
4663 	u8 port = params->port;
4664 	u32 sync_offset, media_types;
4665 	/* Update PHY configuration */
4666 	set_phy_vars(params, vars);
4667 
4668 	vars->link_status = REG_RD(bp, params->shmem_base +
4669 				   offsetof(struct shmem_region,
4670 					    port_mb[port].link_status));
4671 
4672 	vars->phy_flags = PHY_XGXS_FLAG;
4673 	bnx2x_sync_link(params, vars);
4674 	/* Sync media type */
4675 	sync_offset = params->shmem_base +
4676 			offsetof(struct shmem_region,
4677 				 dev_info.port_hw_config[port].media_type);
4678 	media_types = REG_RD(bp, sync_offset);
4679 
4680 	params->phy[INT_PHY].media_type =
4681 		(media_types & PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK) >>
4682 		PORT_HW_CFG_MEDIA_TYPE_PHY0_SHIFT;
4683 	params->phy[EXT_PHY1].media_type =
4684 		(media_types & PORT_HW_CFG_MEDIA_TYPE_PHY1_MASK) >>
4685 		PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT;
4686 	params->phy[EXT_PHY2].media_type =
4687 		(media_types & PORT_HW_CFG_MEDIA_TYPE_PHY2_MASK) >>
4688 		PORT_HW_CFG_MEDIA_TYPE_PHY2_SHIFT;
4689 	DP(NETIF_MSG_LINK, "media_types = 0x%x\n", media_types);
4690 
4691 	/* Sync AEU offset */
4692 	sync_offset = params->shmem_base +
4693 			offsetof(struct shmem_region,
4694 				 dev_info.port_hw_config[port].aeu_int_mask);
4695 
4696 	vars->aeu_int_mask = REG_RD(bp, sync_offset);
4697 
4698 	/* Sync PFC status */
4699 	if (vars->link_status & LINK_STATUS_PFC_ENABLED)
4700 		params->feature_config_flags |=
4701 					FEATURE_CONFIG_PFC_ENABLED;
4702 	else
4703 		params->feature_config_flags &=
4704 					~FEATURE_CONFIG_PFC_ENABLED;
4705 
4706 	DP(NETIF_MSG_LINK, "link_status 0x%x  phy_link_up %x int_mask 0x%x\n",
4707 		 vars->link_status, vars->phy_link_up, vars->aeu_int_mask);
4708 	DP(NETIF_MSG_LINK, "line_speed %x  duplex %x  flow_ctrl 0x%x\n",
4709 		 vars->line_speed, vars->duplex, vars->flow_ctrl);
4710 }
4711 
bnx2x_set_master_ln(struct link_params * params,struct bnx2x_phy * phy)4712 static void bnx2x_set_master_ln(struct link_params *params,
4713 				struct bnx2x_phy *phy)
4714 {
4715 	struct bnx2x *bp = params->bp;
4716 	u16 new_master_ln, ser_lane;
4717 	ser_lane = ((params->lane_config &
4718 		     PORT_HW_CFG_LANE_SWAP_CFG_MASTER_MASK) >>
4719 		    PORT_HW_CFG_LANE_SWAP_CFG_MASTER_SHIFT);
4720 
4721 	/* set the master_ln for AN */
4722 	CL22_RD_OVER_CL45(bp, phy,
4723 			  MDIO_REG_BANK_XGXS_BLOCK2,
4724 			  MDIO_XGXS_BLOCK2_TEST_MODE_LANE,
4725 			  &new_master_ln);
4726 
4727 	CL22_WR_OVER_CL45(bp, phy,
4728 			  MDIO_REG_BANK_XGXS_BLOCK2 ,
4729 			  MDIO_XGXS_BLOCK2_TEST_MODE_LANE,
4730 			  (new_master_ln | ser_lane));
4731 }
4732 
bnx2x_reset_unicore(struct link_params * params,struct bnx2x_phy * phy,u8 set_serdes)4733 static int bnx2x_reset_unicore(struct link_params *params,
4734 			       struct bnx2x_phy *phy,
4735 			       u8 set_serdes)
4736 {
4737 	struct bnx2x *bp = params->bp;
4738 	u16 mii_control;
4739 	u16 i;
4740 	CL22_RD_OVER_CL45(bp, phy,
4741 			  MDIO_REG_BANK_COMBO_IEEE0,
4742 			  MDIO_COMBO_IEEE0_MII_CONTROL, &mii_control);
4743 
4744 	/* reset the unicore */
4745 	CL22_WR_OVER_CL45(bp, phy,
4746 			  MDIO_REG_BANK_COMBO_IEEE0,
4747 			  MDIO_COMBO_IEEE0_MII_CONTROL,
4748 			  (mii_control |
4749 			   MDIO_COMBO_IEEO_MII_CONTROL_RESET));
4750 	if (set_serdes)
4751 		bnx2x_set_serdes_access(bp, params->port);
4752 
4753 	/* wait for the reset to self clear */
4754 	for (i = 0; i < MDIO_ACCESS_TIMEOUT; i++) {
4755 		udelay(5);
4756 
4757 		/* the reset erased the previous bank value */
4758 		CL22_RD_OVER_CL45(bp, phy,
4759 				  MDIO_REG_BANK_COMBO_IEEE0,
4760 				  MDIO_COMBO_IEEE0_MII_CONTROL,
4761 				  &mii_control);
4762 
4763 		if (!(mii_control & MDIO_COMBO_IEEO_MII_CONTROL_RESET)) {
4764 			udelay(5);
4765 			return 0;
4766 		}
4767 	}
4768 
4769 	netdev_err(bp->dev,  "Warning: PHY was not initialized,"
4770 			      " Port %d\n",
4771 			 params->port);
4772 	DP(NETIF_MSG_LINK, "BUG! XGXS is still in reset!\n");
4773 	return -EINVAL;
4774 
4775 }
4776 
bnx2x_set_swap_lanes(struct link_params * params,struct bnx2x_phy * phy)4777 static void bnx2x_set_swap_lanes(struct link_params *params,
4778 				 struct bnx2x_phy *phy)
4779 {
4780 	struct bnx2x *bp = params->bp;
4781 	/*
4782 	 *  Each two bits represents a lane number:
4783 	 *  No swap is 0123 => 0x1b no need to enable the swap
4784 	 */
4785 	u16 rx_lane_swap, tx_lane_swap;
4786 
4787 	rx_lane_swap = ((params->lane_config &
4788 			 PORT_HW_CFG_LANE_SWAP_CFG_RX_MASK) >>
4789 			PORT_HW_CFG_LANE_SWAP_CFG_RX_SHIFT);
4790 	tx_lane_swap = ((params->lane_config &
4791 			 PORT_HW_CFG_LANE_SWAP_CFG_TX_MASK) >>
4792 			PORT_HW_CFG_LANE_SWAP_CFG_TX_SHIFT);
4793 
4794 	if (rx_lane_swap != 0x1b) {
4795 		CL22_WR_OVER_CL45(bp, phy,
4796 				  MDIO_REG_BANK_XGXS_BLOCK2,
4797 				  MDIO_XGXS_BLOCK2_RX_LN_SWAP,
4798 				  (rx_lane_swap |
4799 				   MDIO_XGXS_BLOCK2_RX_LN_SWAP_ENABLE |
4800 				   MDIO_XGXS_BLOCK2_RX_LN_SWAP_FORCE_ENABLE));
4801 	} else {
4802 		CL22_WR_OVER_CL45(bp, phy,
4803 				  MDIO_REG_BANK_XGXS_BLOCK2,
4804 				  MDIO_XGXS_BLOCK2_RX_LN_SWAP, 0);
4805 	}
4806 
4807 	if (tx_lane_swap != 0x1b) {
4808 		CL22_WR_OVER_CL45(bp, phy,
4809 				  MDIO_REG_BANK_XGXS_BLOCK2,
4810 				  MDIO_XGXS_BLOCK2_TX_LN_SWAP,
4811 				  (tx_lane_swap |
4812 				   MDIO_XGXS_BLOCK2_TX_LN_SWAP_ENABLE));
4813 	} else {
4814 		CL22_WR_OVER_CL45(bp, phy,
4815 				  MDIO_REG_BANK_XGXS_BLOCK2,
4816 				  MDIO_XGXS_BLOCK2_TX_LN_SWAP, 0);
4817 	}
4818 }
4819 
bnx2x_set_parallel_detection(struct bnx2x_phy * phy,struct link_params * params)4820 static void bnx2x_set_parallel_detection(struct bnx2x_phy *phy,
4821 					 struct link_params *params)
4822 {
4823 	struct bnx2x *bp = params->bp;
4824 	u16 control2;
4825 	CL22_RD_OVER_CL45(bp, phy,
4826 			  MDIO_REG_BANK_SERDES_DIGITAL,
4827 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL2,
4828 			  &control2);
4829 	if (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)
4830 		control2 |= MDIO_SERDES_DIGITAL_A_1000X_CONTROL2_PRL_DT_EN;
4831 	else
4832 		control2 &= ~MDIO_SERDES_DIGITAL_A_1000X_CONTROL2_PRL_DT_EN;
4833 	DP(NETIF_MSG_LINK, "phy->speed_cap_mask = 0x%x, control2 = 0x%x\n",
4834 		phy->speed_cap_mask, control2);
4835 	CL22_WR_OVER_CL45(bp, phy,
4836 			  MDIO_REG_BANK_SERDES_DIGITAL,
4837 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL2,
4838 			  control2);
4839 
4840 	if ((phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) &&
4841 	     (phy->speed_cap_mask &
4842 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) {
4843 		DP(NETIF_MSG_LINK, "XGXS\n");
4844 
4845 		CL22_WR_OVER_CL45(bp, phy,
4846 				 MDIO_REG_BANK_10G_PARALLEL_DETECT,
4847 				 MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_LINK,
4848 				 MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_LINK_CNT);
4849 
4850 		CL22_RD_OVER_CL45(bp, phy,
4851 				  MDIO_REG_BANK_10G_PARALLEL_DETECT,
4852 				  MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_CONTROL,
4853 				  &control2);
4854 
4855 
4856 		control2 |=
4857 		    MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_CONTROL_PARDET10G_EN;
4858 
4859 		CL22_WR_OVER_CL45(bp, phy,
4860 				  MDIO_REG_BANK_10G_PARALLEL_DETECT,
4861 				  MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_CONTROL,
4862 				  control2);
4863 
4864 		/* Disable parallel detection of HiG */
4865 		CL22_WR_OVER_CL45(bp, phy,
4866 				  MDIO_REG_BANK_XGXS_BLOCK2,
4867 				  MDIO_XGXS_BLOCK2_UNICORE_MODE_10G,
4868 				  MDIO_XGXS_BLOCK2_UNICORE_MODE_10G_CX4_XGXS |
4869 				  MDIO_XGXS_BLOCK2_UNICORE_MODE_10G_HIGIG_XGXS);
4870 	}
4871 }
4872 
bnx2x_set_autoneg(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars,u8 enable_cl73)4873 static void bnx2x_set_autoneg(struct bnx2x_phy *phy,
4874 			      struct link_params *params,
4875 			      struct link_vars *vars,
4876 			      u8 enable_cl73)
4877 {
4878 	struct bnx2x *bp = params->bp;
4879 	u16 reg_val;
4880 
4881 	/* CL37 Autoneg */
4882 	CL22_RD_OVER_CL45(bp, phy,
4883 			  MDIO_REG_BANK_COMBO_IEEE0,
4884 			  MDIO_COMBO_IEEE0_MII_CONTROL, &reg_val);
4885 
4886 	/* CL37 Autoneg Enabled */
4887 	if (vars->line_speed == SPEED_AUTO_NEG)
4888 		reg_val |= MDIO_COMBO_IEEO_MII_CONTROL_AN_EN;
4889 	else /* CL37 Autoneg Disabled */
4890 		reg_val &= ~(MDIO_COMBO_IEEO_MII_CONTROL_AN_EN |
4891 			     MDIO_COMBO_IEEO_MII_CONTROL_RESTART_AN);
4892 
4893 	CL22_WR_OVER_CL45(bp, phy,
4894 			  MDIO_REG_BANK_COMBO_IEEE0,
4895 			  MDIO_COMBO_IEEE0_MII_CONTROL, reg_val);
4896 
4897 	/* Enable/Disable Autodetection */
4898 
4899 	CL22_RD_OVER_CL45(bp, phy,
4900 			  MDIO_REG_BANK_SERDES_DIGITAL,
4901 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL1, &reg_val);
4902 	reg_val &= ~(MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_SIGNAL_DETECT_EN |
4903 		    MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_INVERT_SIGNAL_DETECT);
4904 	reg_val |= MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_FIBER_MODE;
4905 	if (vars->line_speed == SPEED_AUTO_NEG)
4906 		reg_val |= MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_AUTODET;
4907 	else
4908 		reg_val &= ~MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_AUTODET;
4909 
4910 	CL22_WR_OVER_CL45(bp, phy,
4911 			  MDIO_REG_BANK_SERDES_DIGITAL,
4912 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL1, reg_val);
4913 
4914 	/* Enable TetonII and BAM autoneg */
4915 	CL22_RD_OVER_CL45(bp, phy,
4916 			  MDIO_REG_BANK_BAM_NEXT_PAGE,
4917 			  MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL,
4918 			  &reg_val);
4919 	if (vars->line_speed == SPEED_AUTO_NEG) {
4920 		/* Enable BAM aneg Mode and TetonII aneg Mode */
4921 		reg_val |= (MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL_BAM_MODE |
4922 			    MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL_TETON_AN);
4923 	} else {
4924 		/* TetonII and BAM Autoneg Disabled */
4925 		reg_val &= ~(MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL_BAM_MODE |
4926 			     MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL_TETON_AN);
4927 	}
4928 	CL22_WR_OVER_CL45(bp, phy,
4929 			  MDIO_REG_BANK_BAM_NEXT_PAGE,
4930 			  MDIO_BAM_NEXT_PAGE_MP5_NEXT_PAGE_CTRL,
4931 			  reg_val);
4932 
4933 	if (enable_cl73) {
4934 		/* Enable Cl73 FSM status bits */
4935 		CL22_WR_OVER_CL45(bp, phy,
4936 				  MDIO_REG_BANK_CL73_USERB0,
4937 				  MDIO_CL73_USERB0_CL73_UCTRL,
4938 				  0xe);
4939 
4940 		/* Enable BAM Station Manager*/
4941 		CL22_WR_OVER_CL45(bp, phy,
4942 			MDIO_REG_BANK_CL73_USERB0,
4943 			MDIO_CL73_USERB0_CL73_BAM_CTRL1,
4944 			MDIO_CL73_USERB0_CL73_BAM_CTRL1_BAM_EN |
4945 			MDIO_CL73_USERB0_CL73_BAM_CTRL1_BAM_STATION_MNGR_EN |
4946 			MDIO_CL73_USERB0_CL73_BAM_CTRL1_BAM_NP_AFTER_BP_EN);
4947 
4948 		/* Advertise CL73 link speeds */
4949 		CL22_RD_OVER_CL45(bp, phy,
4950 				  MDIO_REG_BANK_CL73_IEEEB1,
4951 				  MDIO_CL73_IEEEB1_AN_ADV2,
4952 				  &reg_val);
4953 		if (phy->speed_cap_mask &
4954 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)
4955 			reg_val |= MDIO_CL73_IEEEB1_AN_ADV2_ADVR_10G_KX4;
4956 		if (phy->speed_cap_mask &
4957 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)
4958 			reg_val |= MDIO_CL73_IEEEB1_AN_ADV2_ADVR_1000M_KX;
4959 
4960 		CL22_WR_OVER_CL45(bp, phy,
4961 				  MDIO_REG_BANK_CL73_IEEEB1,
4962 				  MDIO_CL73_IEEEB1_AN_ADV2,
4963 				  reg_val);
4964 
4965 		/* CL73 Autoneg Enabled */
4966 		reg_val = MDIO_CL73_IEEEB0_CL73_AN_CONTROL_AN_EN;
4967 
4968 	} else /* CL73 Autoneg Disabled */
4969 		reg_val = 0;
4970 
4971 	CL22_WR_OVER_CL45(bp, phy,
4972 			  MDIO_REG_BANK_CL73_IEEEB0,
4973 			  MDIO_CL73_IEEEB0_CL73_AN_CONTROL, reg_val);
4974 }
4975 
4976 /* program SerDes, forced speed */
bnx2x_program_serdes(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)4977 static void bnx2x_program_serdes(struct bnx2x_phy *phy,
4978 				 struct link_params *params,
4979 				 struct link_vars *vars)
4980 {
4981 	struct bnx2x *bp = params->bp;
4982 	u16 reg_val;
4983 
4984 	/* program duplex, disable autoneg and sgmii*/
4985 	CL22_RD_OVER_CL45(bp, phy,
4986 			  MDIO_REG_BANK_COMBO_IEEE0,
4987 			  MDIO_COMBO_IEEE0_MII_CONTROL, &reg_val);
4988 	reg_val &= ~(MDIO_COMBO_IEEO_MII_CONTROL_FULL_DUPLEX |
4989 		     MDIO_COMBO_IEEO_MII_CONTROL_AN_EN |
4990 		     MDIO_COMBO_IEEO_MII_CONTROL_MAN_SGMII_SP_MASK);
4991 	if (phy->req_duplex == DUPLEX_FULL)
4992 		reg_val |= MDIO_COMBO_IEEO_MII_CONTROL_FULL_DUPLEX;
4993 	CL22_WR_OVER_CL45(bp, phy,
4994 			  MDIO_REG_BANK_COMBO_IEEE0,
4995 			  MDIO_COMBO_IEEE0_MII_CONTROL, reg_val);
4996 
4997 	/*
4998 	 * program speed
4999 	 *  - needed only if the speed is greater than 1G (2.5G or 10G)
5000 	 */
5001 	CL22_RD_OVER_CL45(bp, phy,
5002 			  MDIO_REG_BANK_SERDES_DIGITAL,
5003 			  MDIO_SERDES_DIGITAL_MISC1, &reg_val);
5004 	/* clearing the speed value before setting the right speed */
5005 	DP(NETIF_MSG_LINK, "MDIO_REG_BANK_SERDES_DIGITAL = 0x%x\n", reg_val);
5006 
5007 	reg_val &= ~(MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_MASK |
5008 		     MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_SEL);
5009 
5010 	if (!((vars->line_speed == SPEED_1000) ||
5011 	      (vars->line_speed == SPEED_100) ||
5012 	      (vars->line_speed == SPEED_10))) {
5013 
5014 		reg_val |= (MDIO_SERDES_DIGITAL_MISC1_REFCLK_SEL_156_25M |
5015 			    MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_SEL);
5016 		if (vars->line_speed == SPEED_10000)
5017 			reg_val |=
5018 				MDIO_SERDES_DIGITAL_MISC1_FORCE_SPEED_10G_CX4;
5019 	}
5020 
5021 	CL22_WR_OVER_CL45(bp, phy,
5022 			  MDIO_REG_BANK_SERDES_DIGITAL,
5023 			  MDIO_SERDES_DIGITAL_MISC1, reg_val);
5024 
5025 }
5026 
bnx2x_set_brcm_cl37_advertisement(struct bnx2x_phy * phy,struct link_params * params)5027 static void bnx2x_set_brcm_cl37_advertisement(struct bnx2x_phy *phy,
5028 					      struct link_params *params)
5029 {
5030 	struct bnx2x *bp = params->bp;
5031 	u16 val = 0;
5032 
5033 	/* configure the 48 bits for BAM AN */
5034 
5035 	/* set extended capabilities */
5036 	if (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_2_5G)
5037 		val |= MDIO_OVER_1G_UP1_2_5G;
5038 	if (phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)
5039 		val |= MDIO_OVER_1G_UP1_10G;
5040 	CL22_WR_OVER_CL45(bp, phy,
5041 			  MDIO_REG_BANK_OVER_1G,
5042 			  MDIO_OVER_1G_UP1, val);
5043 
5044 	CL22_WR_OVER_CL45(bp, phy,
5045 			  MDIO_REG_BANK_OVER_1G,
5046 			  MDIO_OVER_1G_UP3, 0x400);
5047 }
5048 
bnx2x_set_ieee_aneg_advertisement(struct bnx2x_phy * phy,struct link_params * params,u16 ieee_fc)5049 static void bnx2x_set_ieee_aneg_advertisement(struct bnx2x_phy *phy,
5050 					      struct link_params *params,
5051 					      u16 ieee_fc)
5052 {
5053 	struct bnx2x *bp = params->bp;
5054 	u16 val;
5055 	/* for AN, we are always publishing full duplex */
5056 
5057 	CL22_WR_OVER_CL45(bp, phy,
5058 			  MDIO_REG_BANK_COMBO_IEEE0,
5059 			  MDIO_COMBO_IEEE0_AUTO_NEG_ADV, ieee_fc);
5060 	CL22_RD_OVER_CL45(bp, phy,
5061 			  MDIO_REG_BANK_CL73_IEEEB1,
5062 			  MDIO_CL73_IEEEB1_AN_ADV1, &val);
5063 	val &= ~MDIO_CL73_IEEEB1_AN_ADV1_PAUSE_BOTH;
5064 	val |= ((ieee_fc<<3) & MDIO_CL73_IEEEB1_AN_ADV1_PAUSE_MASK);
5065 	CL22_WR_OVER_CL45(bp, phy,
5066 			  MDIO_REG_BANK_CL73_IEEEB1,
5067 			  MDIO_CL73_IEEEB1_AN_ADV1, val);
5068 }
5069 
bnx2x_restart_autoneg(struct bnx2x_phy * phy,struct link_params * params,u8 enable_cl73)5070 static void bnx2x_restart_autoneg(struct bnx2x_phy *phy,
5071 				  struct link_params *params,
5072 				  u8 enable_cl73)
5073 {
5074 	struct bnx2x *bp = params->bp;
5075 	u16 mii_control;
5076 
5077 	DP(NETIF_MSG_LINK, "bnx2x_restart_autoneg\n");
5078 	/* Enable and restart BAM/CL37 aneg */
5079 
5080 	if (enable_cl73) {
5081 		CL22_RD_OVER_CL45(bp, phy,
5082 				  MDIO_REG_BANK_CL73_IEEEB0,
5083 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL,
5084 				  &mii_control);
5085 
5086 		CL22_WR_OVER_CL45(bp, phy,
5087 				  MDIO_REG_BANK_CL73_IEEEB0,
5088 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL,
5089 				  (mii_control |
5090 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL_AN_EN |
5091 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL_RESTART_AN));
5092 	} else {
5093 
5094 		CL22_RD_OVER_CL45(bp, phy,
5095 				  MDIO_REG_BANK_COMBO_IEEE0,
5096 				  MDIO_COMBO_IEEE0_MII_CONTROL,
5097 				  &mii_control);
5098 		DP(NETIF_MSG_LINK,
5099 			 "bnx2x_restart_autoneg mii_control before = 0x%x\n",
5100 			 mii_control);
5101 		CL22_WR_OVER_CL45(bp, phy,
5102 				  MDIO_REG_BANK_COMBO_IEEE0,
5103 				  MDIO_COMBO_IEEE0_MII_CONTROL,
5104 				  (mii_control |
5105 				   MDIO_COMBO_IEEO_MII_CONTROL_AN_EN |
5106 				   MDIO_COMBO_IEEO_MII_CONTROL_RESTART_AN));
5107 	}
5108 }
5109 
bnx2x_initialize_sgmii_process(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)5110 static void bnx2x_initialize_sgmii_process(struct bnx2x_phy *phy,
5111 					   struct link_params *params,
5112 					   struct link_vars *vars)
5113 {
5114 	struct bnx2x *bp = params->bp;
5115 	u16 control1;
5116 
5117 	/* in SGMII mode, the unicore is always slave */
5118 
5119 	CL22_RD_OVER_CL45(bp, phy,
5120 			  MDIO_REG_BANK_SERDES_DIGITAL,
5121 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL1,
5122 			  &control1);
5123 	control1 |= MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_INVERT_SIGNAL_DETECT;
5124 	/* set sgmii mode (and not fiber) */
5125 	control1 &= ~(MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_FIBER_MODE |
5126 		      MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_AUTODET |
5127 		      MDIO_SERDES_DIGITAL_A_1000X_CONTROL1_MSTR_MODE);
5128 	CL22_WR_OVER_CL45(bp, phy,
5129 			  MDIO_REG_BANK_SERDES_DIGITAL,
5130 			  MDIO_SERDES_DIGITAL_A_1000X_CONTROL1,
5131 			  control1);
5132 
5133 	/* if forced speed */
5134 	if (!(vars->line_speed == SPEED_AUTO_NEG)) {
5135 		/* set speed, disable autoneg */
5136 		u16 mii_control;
5137 
5138 		CL22_RD_OVER_CL45(bp, phy,
5139 				  MDIO_REG_BANK_COMBO_IEEE0,
5140 				  MDIO_COMBO_IEEE0_MII_CONTROL,
5141 				  &mii_control);
5142 		mii_control &= ~(MDIO_COMBO_IEEO_MII_CONTROL_AN_EN |
5143 				 MDIO_COMBO_IEEO_MII_CONTROL_MAN_SGMII_SP_MASK|
5144 				 MDIO_COMBO_IEEO_MII_CONTROL_FULL_DUPLEX);
5145 
5146 		switch (vars->line_speed) {
5147 		case SPEED_100:
5148 			mii_control |=
5149 				MDIO_COMBO_IEEO_MII_CONTROL_MAN_SGMII_SP_100;
5150 			break;
5151 		case SPEED_1000:
5152 			mii_control |=
5153 				MDIO_COMBO_IEEO_MII_CONTROL_MAN_SGMII_SP_1000;
5154 			break;
5155 		case SPEED_10:
5156 			/* there is nothing to set for 10M */
5157 			break;
5158 		default:
5159 			/* invalid speed for SGMII */
5160 			DP(NETIF_MSG_LINK, "Invalid line_speed 0x%x\n",
5161 				  vars->line_speed);
5162 			break;
5163 		}
5164 
5165 		/* setting the full duplex */
5166 		if (phy->req_duplex == DUPLEX_FULL)
5167 			mii_control |=
5168 				MDIO_COMBO_IEEO_MII_CONTROL_FULL_DUPLEX;
5169 		CL22_WR_OVER_CL45(bp, phy,
5170 				  MDIO_REG_BANK_COMBO_IEEE0,
5171 				  MDIO_COMBO_IEEE0_MII_CONTROL,
5172 				  mii_control);
5173 
5174 	} else { /* AN mode */
5175 		/* enable and restart AN */
5176 		bnx2x_restart_autoneg(phy, params, 0);
5177 	}
5178 }
5179 
5180 
5181 /*
5182  * link management
5183  */
5184 
bnx2x_direct_parallel_detect_used(struct bnx2x_phy * phy,struct link_params * params)5185 static int bnx2x_direct_parallel_detect_used(struct bnx2x_phy *phy,
5186 					     struct link_params *params)
5187 {
5188 	struct bnx2x *bp = params->bp;
5189 	u16 pd_10g, status2_1000x;
5190 	if (phy->req_line_speed != SPEED_AUTO_NEG)
5191 		return 0;
5192 	CL22_RD_OVER_CL45(bp, phy,
5193 			  MDIO_REG_BANK_SERDES_DIGITAL,
5194 			  MDIO_SERDES_DIGITAL_A_1000X_STATUS2,
5195 			  &status2_1000x);
5196 	CL22_RD_OVER_CL45(bp, phy,
5197 			  MDIO_REG_BANK_SERDES_DIGITAL,
5198 			  MDIO_SERDES_DIGITAL_A_1000X_STATUS2,
5199 			  &status2_1000x);
5200 	if (status2_1000x & MDIO_SERDES_DIGITAL_A_1000X_STATUS2_AN_DISABLED) {
5201 		DP(NETIF_MSG_LINK, "1G parallel detect link on port %d\n",
5202 			 params->port);
5203 		return 1;
5204 	}
5205 
5206 	CL22_RD_OVER_CL45(bp, phy,
5207 			  MDIO_REG_BANK_10G_PARALLEL_DETECT,
5208 			  MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_STATUS,
5209 			  &pd_10g);
5210 
5211 	if (pd_10g & MDIO_10G_PARALLEL_DETECT_PAR_DET_10G_STATUS_PD_LINK) {
5212 		DP(NETIF_MSG_LINK, "10G parallel detect link on port %d\n",
5213 			 params->port);
5214 		return 1;
5215 	}
5216 	return 0;
5217 }
5218 
bnx2x_flow_ctrl_resolve(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars,u32 gp_status)5219 static void bnx2x_flow_ctrl_resolve(struct bnx2x_phy *phy,
5220 				    struct link_params *params,
5221 				    struct link_vars *vars,
5222 				    u32 gp_status)
5223 {
5224 	struct bnx2x *bp = params->bp;
5225 	u16 ld_pause;   /* local driver */
5226 	u16 lp_pause;   /* link partner */
5227 	u16 pause_result;
5228 
5229 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
5230 
5231 	/* resolve from gp_status in case of AN complete and not sgmii */
5232 	if (phy->req_flow_ctrl != BNX2X_FLOW_CTRL_AUTO)
5233 		vars->flow_ctrl = phy->req_flow_ctrl;
5234 	else if (phy->req_line_speed != SPEED_AUTO_NEG)
5235 		vars->flow_ctrl = params->req_fc_auto_adv;
5236 	else if ((gp_status & MDIO_AN_CL73_OR_37_COMPLETE) &&
5237 		 (!(vars->phy_flags & PHY_SGMII_FLAG))) {
5238 		if (bnx2x_direct_parallel_detect_used(phy, params)) {
5239 			vars->flow_ctrl = params->req_fc_auto_adv;
5240 			return;
5241 		}
5242 		if ((gp_status &
5243 		    (MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_AUTONEG_COMPLETE |
5244 		     MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_MR_LP_NP_AN_ABLE)) ==
5245 		    (MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_AUTONEG_COMPLETE |
5246 		     MDIO_GP_STATUS_TOP_AN_STATUS1_CL73_MR_LP_NP_AN_ABLE)) {
5247 
5248 			CL22_RD_OVER_CL45(bp, phy,
5249 					  MDIO_REG_BANK_CL73_IEEEB1,
5250 					  MDIO_CL73_IEEEB1_AN_ADV1,
5251 					  &ld_pause);
5252 			CL22_RD_OVER_CL45(bp, phy,
5253 					  MDIO_REG_BANK_CL73_IEEEB1,
5254 					  MDIO_CL73_IEEEB1_AN_LP_ADV1,
5255 					  &lp_pause);
5256 			pause_result = (ld_pause &
5257 					MDIO_CL73_IEEEB1_AN_ADV1_PAUSE_MASK)
5258 					>> 8;
5259 			pause_result |= (lp_pause &
5260 					MDIO_CL73_IEEEB1_AN_LP_ADV1_PAUSE_MASK)
5261 					>> 10;
5262 			DP(NETIF_MSG_LINK, "pause_result CL73 0x%x\n",
5263 				 pause_result);
5264 		} else {
5265 			CL22_RD_OVER_CL45(bp, phy,
5266 					  MDIO_REG_BANK_COMBO_IEEE0,
5267 					  MDIO_COMBO_IEEE0_AUTO_NEG_ADV,
5268 					  &ld_pause);
5269 			CL22_RD_OVER_CL45(bp, phy,
5270 				MDIO_REG_BANK_COMBO_IEEE0,
5271 				MDIO_COMBO_IEEE0_AUTO_NEG_LINK_PARTNER_ABILITY1,
5272 				&lp_pause);
5273 			pause_result = (ld_pause &
5274 				MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_MASK)>>5;
5275 			pause_result |= (lp_pause &
5276 				MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_MASK)>>7;
5277 			DP(NETIF_MSG_LINK, "pause_result CL37 0x%x\n",
5278 				 pause_result);
5279 		}
5280 		bnx2x_pause_resolve(vars, pause_result);
5281 	}
5282 	DP(NETIF_MSG_LINK, "flow_ctrl 0x%x\n", vars->flow_ctrl);
5283 }
5284 
bnx2x_check_fallback_to_cl37(struct bnx2x_phy * phy,struct link_params * params)5285 static void bnx2x_check_fallback_to_cl37(struct bnx2x_phy *phy,
5286 					 struct link_params *params)
5287 {
5288 	struct bnx2x *bp = params->bp;
5289 	u16 rx_status, ustat_val, cl37_fsm_received;
5290 	DP(NETIF_MSG_LINK, "bnx2x_check_fallback_to_cl37\n");
5291 	/* Step 1: Make sure signal is detected */
5292 	CL22_RD_OVER_CL45(bp, phy,
5293 			  MDIO_REG_BANK_RX0,
5294 			  MDIO_RX0_RX_STATUS,
5295 			  &rx_status);
5296 	if ((rx_status & MDIO_RX0_RX_STATUS_SIGDET) !=
5297 	    (MDIO_RX0_RX_STATUS_SIGDET)) {
5298 		DP(NETIF_MSG_LINK, "Signal is not detected. Restoring CL73."
5299 			     "rx_status(0x80b0) = 0x%x\n", rx_status);
5300 		CL22_WR_OVER_CL45(bp, phy,
5301 				  MDIO_REG_BANK_CL73_IEEEB0,
5302 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL,
5303 				  MDIO_CL73_IEEEB0_CL73_AN_CONTROL_AN_EN);
5304 		return;
5305 	}
5306 	/* Step 2: Check CL73 state machine */
5307 	CL22_RD_OVER_CL45(bp, phy,
5308 			  MDIO_REG_BANK_CL73_USERB0,
5309 			  MDIO_CL73_USERB0_CL73_USTAT1,
5310 			  &ustat_val);
5311 	if ((ustat_val &
5312 	     (MDIO_CL73_USERB0_CL73_USTAT1_LINK_STATUS_CHECK |
5313 	      MDIO_CL73_USERB0_CL73_USTAT1_AN_GOOD_CHECK_BAM37)) !=
5314 	    (MDIO_CL73_USERB0_CL73_USTAT1_LINK_STATUS_CHECK |
5315 	      MDIO_CL73_USERB0_CL73_USTAT1_AN_GOOD_CHECK_BAM37)) {
5316 		DP(NETIF_MSG_LINK, "CL73 state-machine is not stable. "
5317 			     "ustat_val(0x8371) = 0x%x\n", ustat_val);
5318 		return;
5319 	}
5320 	/*
5321 	 * Step 3: Check CL37 Message Pages received to indicate LP
5322 	 * supports only CL37
5323 	 */
5324 	CL22_RD_OVER_CL45(bp, phy,
5325 			  MDIO_REG_BANK_REMOTE_PHY,
5326 			  MDIO_REMOTE_PHY_MISC_RX_STATUS,
5327 			  &cl37_fsm_received);
5328 	if ((cl37_fsm_received &
5329 	     (MDIO_REMOTE_PHY_MISC_RX_STATUS_CL37_FSM_RECEIVED_OVER1G_MSG |
5330 	     MDIO_REMOTE_PHY_MISC_RX_STATUS_CL37_FSM_RECEIVED_BRCM_OUI_MSG)) !=
5331 	    (MDIO_REMOTE_PHY_MISC_RX_STATUS_CL37_FSM_RECEIVED_OVER1G_MSG |
5332 	      MDIO_REMOTE_PHY_MISC_RX_STATUS_CL37_FSM_RECEIVED_BRCM_OUI_MSG)) {
5333 		DP(NETIF_MSG_LINK, "No CL37 FSM were received. "
5334 			     "misc_rx_status(0x8330) = 0x%x\n",
5335 			 cl37_fsm_received);
5336 		return;
5337 	}
5338 	/*
5339 	 * The combined cl37/cl73 fsm state information indicating that
5340 	 * we are connected to a device which does not support cl73, but
5341 	 * does support cl37 BAM. In this case we disable cl73 and
5342 	 * restart cl37 auto-neg
5343 	 */
5344 
5345 	/* Disable CL73 */
5346 	CL22_WR_OVER_CL45(bp, phy,
5347 			  MDIO_REG_BANK_CL73_IEEEB0,
5348 			  MDIO_CL73_IEEEB0_CL73_AN_CONTROL,
5349 			  0);
5350 	/* Restart CL37 autoneg */
5351 	bnx2x_restart_autoneg(phy, params, 0);
5352 	DP(NETIF_MSG_LINK, "Disabling CL73, and restarting CL37 autoneg\n");
5353 }
5354 
bnx2x_xgxs_an_resolve(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars,u32 gp_status)5355 static void bnx2x_xgxs_an_resolve(struct bnx2x_phy *phy,
5356 				  struct link_params *params,
5357 				  struct link_vars *vars,
5358 				  u32 gp_status)
5359 {
5360 	if (gp_status & MDIO_AN_CL73_OR_37_COMPLETE)
5361 		vars->link_status |=
5362 			LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
5363 
5364 	if (bnx2x_direct_parallel_detect_used(phy, params))
5365 		vars->link_status |=
5366 			LINK_STATUS_PARALLEL_DETECTION_USED;
5367 }
bnx2x_get_link_speed_duplex(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars,u16 is_link_up,u16 speed_mask,u16 is_duplex)5368 static int bnx2x_get_link_speed_duplex(struct bnx2x_phy *phy,
5369 				     struct link_params *params,
5370 				      struct link_vars *vars,
5371 				      u16 is_link_up,
5372 				      u16 speed_mask,
5373 				      u16 is_duplex)
5374 {
5375 	struct bnx2x *bp = params->bp;
5376 	if (phy->req_line_speed == SPEED_AUTO_NEG)
5377 		vars->link_status |= LINK_STATUS_AUTO_NEGOTIATE_ENABLED;
5378 	if (is_link_up) {
5379 		DP(NETIF_MSG_LINK, "phy link up\n");
5380 
5381 		vars->phy_link_up = 1;
5382 		vars->link_status |= LINK_STATUS_LINK_UP;
5383 
5384 		switch (speed_mask) {
5385 		case GP_STATUS_10M:
5386 			vars->line_speed = SPEED_10;
5387 			if (vars->duplex == DUPLEX_FULL)
5388 				vars->link_status |= LINK_10TFD;
5389 			else
5390 				vars->link_status |= LINK_10THD;
5391 			break;
5392 
5393 		case GP_STATUS_100M:
5394 			vars->line_speed = SPEED_100;
5395 			if (vars->duplex == DUPLEX_FULL)
5396 				vars->link_status |= LINK_100TXFD;
5397 			else
5398 				vars->link_status |= LINK_100TXHD;
5399 			break;
5400 
5401 		case GP_STATUS_1G:
5402 		case GP_STATUS_1G_KX:
5403 			vars->line_speed = SPEED_1000;
5404 			if (vars->duplex == DUPLEX_FULL)
5405 				vars->link_status |= LINK_1000TFD;
5406 			else
5407 				vars->link_status |= LINK_1000THD;
5408 			break;
5409 
5410 		case GP_STATUS_2_5G:
5411 			vars->line_speed = SPEED_2500;
5412 			if (vars->duplex == DUPLEX_FULL)
5413 				vars->link_status |= LINK_2500TFD;
5414 			else
5415 				vars->link_status |= LINK_2500THD;
5416 			break;
5417 
5418 		case GP_STATUS_5G:
5419 		case GP_STATUS_6G:
5420 			DP(NETIF_MSG_LINK,
5421 				 "link speed unsupported  gp_status 0x%x\n",
5422 				  speed_mask);
5423 			return -EINVAL;
5424 
5425 		case GP_STATUS_10G_KX4:
5426 		case GP_STATUS_10G_HIG:
5427 		case GP_STATUS_10G_CX4:
5428 		case GP_STATUS_10G_KR:
5429 		case GP_STATUS_10G_SFI:
5430 		case GP_STATUS_10G_XFI:
5431 			vars->line_speed = SPEED_10000;
5432 			vars->link_status |= LINK_10GTFD;
5433 			break;
5434 		case GP_STATUS_20G_DXGXS:
5435 			vars->line_speed = SPEED_20000;
5436 			vars->link_status |= LINK_20GTFD;
5437 			break;
5438 		default:
5439 			DP(NETIF_MSG_LINK,
5440 				  "link speed unsupported gp_status 0x%x\n",
5441 				  speed_mask);
5442 			return -EINVAL;
5443 		}
5444 	} else { /* link_down */
5445 		DP(NETIF_MSG_LINK, "phy link down\n");
5446 
5447 		vars->phy_link_up = 0;
5448 
5449 		vars->duplex = DUPLEX_FULL;
5450 		vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
5451 		vars->mac_type = MAC_TYPE_NONE;
5452 	}
5453 	DP(NETIF_MSG_LINK, " phy_link_up %x line_speed %d\n",
5454 		    vars->phy_link_up, vars->line_speed);
5455 	return 0;
5456 }
5457 
bnx2x_link_settings_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)5458 static int bnx2x_link_settings_status(struct bnx2x_phy *phy,
5459 				      struct link_params *params,
5460 				      struct link_vars *vars)
5461 {
5462 	struct bnx2x *bp = params->bp;
5463 
5464 	u16 gp_status, duplex = DUPLEX_HALF, link_up = 0, speed_mask;
5465 	int rc = 0;
5466 
5467 	/* Read gp_status */
5468 	CL22_RD_OVER_CL45(bp, phy,
5469 			  MDIO_REG_BANK_GP_STATUS,
5470 			  MDIO_GP_STATUS_TOP_AN_STATUS1,
5471 			  &gp_status);
5472 	if (gp_status & MDIO_GP_STATUS_TOP_AN_STATUS1_DUPLEX_STATUS)
5473 		duplex = DUPLEX_FULL;
5474 	if (gp_status & MDIO_GP_STATUS_TOP_AN_STATUS1_LINK_STATUS)
5475 		link_up = 1;
5476 	speed_mask = gp_status & GP_STATUS_SPEED_MASK;
5477 	DP(NETIF_MSG_LINK, "gp_status 0x%x, is_link_up %d, speed_mask 0x%x\n",
5478 		       gp_status, link_up, speed_mask);
5479 	rc = bnx2x_get_link_speed_duplex(phy, params, vars, link_up, speed_mask,
5480 					 duplex);
5481 	if (rc == -EINVAL)
5482 		return rc;
5483 
5484 	if (gp_status & MDIO_GP_STATUS_TOP_AN_STATUS1_LINK_STATUS) {
5485 		if (SINGLE_MEDIA_DIRECT(params)) {
5486 			bnx2x_flow_ctrl_resolve(phy, params, vars, gp_status);
5487 			if (phy->req_line_speed == SPEED_AUTO_NEG)
5488 				bnx2x_xgxs_an_resolve(phy, params, vars,
5489 						      gp_status);
5490 		}
5491 	} else { /* link_down */
5492 		if ((phy->req_line_speed == SPEED_AUTO_NEG) &&
5493 		    SINGLE_MEDIA_DIRECT(params)) {
5494 			/* Check signal is detected */
5495 			bnx2x_check_fallback_to_cl37(phy, params);
5496 		}
5497 	}
5498 
5499 	DP(NETIF_MSG_LINK, "duplex %x  flow_ctrl 0x%x link_status 0x%x\n",
5500 		   vars->duplex, vars->flow_ctrl, vars->link_status);
5501 	return rc;
5502 }
5503 
bnx2x_warpcore_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)5504 static int bnx2x_warpcore_read_status(struct bnx2x_phy *phy,
5505 				     struct link_params *params,
5506 				     struct link_vars *vars)
5507 {
5508 	struct bnx2x *bp = params->bp;
5509 	u8 lane;
5510 	u16 gp_status1, gp_speed, link_up, duplex = DUPLEX_FULL;
5511 	int rc = 0;
5512 	lane = bnx2x_get_warpcore_lane(phy, params);
5513 	/* Read gp_status */
5514 	if (phy->req_line_speed > SPEED_10000) {
5515 		u16 temp_link_up;
5516 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5517 				1, &temp_link_up);
5518 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5519 				1, &link_up);
5520 		DP(NETIF_MSG_LINK, "PCS RX link status = 0x%x-->0x%x\n",
5521 			       temp_link_up, link_up);
5522 		link_up &= (1<<2);
5523 		if (link_up)
5524 			bnx2x_ext_phy_resolve_fc(phy, params, vars);
5525 	} else {
5526 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5527 				MDIO_WC_REG_GP2_STATUS_GP_2_1, &gp_status1);
5528 		DP(NETIF_MSG_LINK, "0x81d1 = 0x%x\n", gp_status1);
5529 		/* Check for either KR or generic link up. */
5530 		gp_status1 = ((gp_status1 >> 8) & 0xf) |
5531 			((gp_status1 >> 12) & 0xf);
5532 		link_up = gp_status1 & (1 << lane);
5533 		if (link_up && SINGLE_MEDIA_DIRECT(params)) {
5534 			u16 pd, gp_status4;
5535 			if (phy->req_line_speed == SPEED_AUTO_NEG) {
5536 				/* Check Autoneg complete */
5537 				bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5538 						MDIO_WC_REG_GP2_STATUS_GP_2_4,
5539 						&gp_status4);
5540 				if (gp_status4 & ((1<<12)<<lane))
5541 					vars->link_status |=
5542 					LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
5543 
5544 				/* Check parallel detect used */
5545 				bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5546 						MDIO_WC_REG_PAR_DET_10G_STATUS,
5547 						&pd);
5548 				if (pd & (1<<15))
5549 					vars->link_status |=
5550 					LINK_STATUS_PARALLEL_DETECTION_USED;
5551 			}
5552 			bnx2x_ext_phy_resolve_fc(phy, params, vars);
5553 		}
5554 	}
5555 
5556 	if (lane < 2) {
5557 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5558 				MDIO_WC_REG_GP2_STATUS_GP_2_2, &gp_speed);
5559 	} else {
5560 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
5561 				MDIO_WC_REG_GP2_STATUS_GP_2_3, &gp_speed);
5562 	}
5563 	DP(NETIF_MSG_LINK, "lane %d gp_speed 0x%x\n", lane, gp_speed);
5564 
5565 	if ((lane & 1) == 0)
5566 		gp_speed <<= 8;
5567 	gp_speed &= 0x3f00;
5568 
5569 
5570 	rc = bnx2x_get_link_speed_duplex(phy, params, vars, link_up, gp_speed,
5571 					 duplex);
5572 
5573 	DP(NETIF_MSG_LINK, "duplex %x  flow_ctrl 0x%x link_status 0x%x\n",
5574 		   vars->duplex, vars->flow_ctrl, vars->link_status);
5575 	return rc;
5576 }
bnx2x_set_gmii_tx_driver(struct link_params * params)5577 static void bnx2x_set_gmii_tx_driver(struct link_params *params)
5578 {
5579 	struct bnx2x *bp = params->bp;
5580 	struct bnx2x_phy *phy = &params->phy[INT_PHY];
5581 	u16 lp_up2;
5582 	u16 tx_driver;
5583 	u16 bank;
5584 
5585 	/* read precomp */
5586 	CL22_RD_OVER_CL45(bp, phy,
5587 			  MDIO_REG_BANK_OVER_1G,
5588 			  MDIO_OVER_1G_LP_UP2, &lp_up2);
5589 
5590 	/* bits [10:7] at lp_up2, positioned at [15:12] */
5591 	lp_up2 = (((lp_up2 & MDIO_OVER_1G_LP_UP2_PREEMPHASIS_MASK) >>
5592 		   MDIO_OVER_1G_LP_UP2_PREEMPHASIS_SHIFT) <<
5593 		  MDIO_TX0_TX_DRIVER_PREEMPHASIS_SHIFT);
5594 
5595 	if (lp_up2 == 0)
5596 		return;
5597 
5598 	for (bank = MDIO_REG_BANK_TX0; bank <= MDIO_REG_BANK_TX3;
5599 	      bank += (MDIO_REG_BANK_TX1 - MDIO_REG_BANK_TX0)) {
5600 		CL22_RD_OVER_CL45(bp, phy,
5601 				  bank,
5602 				  MDIO_TX0_TX_DRIVER, &tx_driver);
5603 
5604 		/* replace tx_driver bits [15:12] */
5605 		if (lp_up2 !=
5606 		    (tx_driver & MDIO_TX0_TX_DRIVER_PREEMPHASIS_MASK)) {
5607 			tx_driver &= ~MDIO_TX0_TX_DRIVER_PREEMPHASIS_MASK;
5608 			tx_driver |= lp_up2;
5609 			CL22_WR_OVER_CL45(bp, phy,
5610 					  bank,
5611 					  MDIO_TX0_TX_DRIVER, tx_driver);
5612 		}
5613 	}
5614 }
5615 
bnx2x_emac_program(struct link_params * params,struct link_vars * vars)5616 static int bnx2x_emac_program(struct link_params *params,
5617 			      struct link_vars *vars)
5618 {
5619 	struct bnx2x *bp = params->bp;
5620 	u8 port = params->port;
5621 	u16 mode = 0;
5622 
5623 	DP(NETIF_MSG_LINK, "setting link speed & duplex\n");
5624 	bnx2x_bits_dis(bp, GRCBASE_EMAC0 + port*0x400 +
5625 		       EMAC_REG_EMAC_MODE,
5626 		       (EMAC_MODE_25G_MODE |
5627 			EMAC_MODE_PORT_MII_10M |
5628 			EMAC_MODE_HALF_DUPLEX));
5629 	switch (vars->line_speed) {
5630 	case SPEED_10:
5631 		mode |= EMAC_MODE_PORT_MII_10M;
5632 		break;
5633 
5634 	case SPEED_100:
5635 		mode |= EMAC_MODE_PORT_MII;
5636 		break;
5637 
5638 	case SPEED_1000:
5639 		mode |= EMAC_MODE_PORT_GMII;
5640 		break;
5641 
5642 	case SPEED_2500:
5643 		mode |= (EMAC_MODE_25G_MODE | EMAC_MODE_PORT_GMII);
5644 		break;
5645 
5646 	default:
5647 		/* 10G not valid for EMAC */
5648 		DP(NETIF_MSG_LINK, "Invalid line_speed 0x%x\n",
5649 			   vars->line_speed);
5650 		return -EINVAL;
5651 	}
5652 
5653 	if (vars->duplex == DUPLEX_HALF)
5654 		mode |= EMAC_MODE_HALF_DUPLEX;
5655 	bnx2x_bits_en(bp,
5656 		      GRCBASE_EMAC0 + port*0x400 + EMAC_REG_EMAC_MODE,
5657 		      mode);
5658 
5659 	bnx2x_set_led(params, vars, LED_MODE_OPER, vars->line_speed);
5660 	return 0;
5661 }
5662 
bnx2x_set_preemphasis(struct bnx2x_phy * phy,struct link_params * params)5663 static void bnx2x_set_preemphasis(struct bnx2x_phy *phy,
5664 				  struct link_params *params)
5665 {
5666 
5667 	u16 bank, i = 0;
5668 	struct bnx2x *bp = params->bp;
5669 
5670 	for (bank = MDIO_REG_BANK_RX0, i = 0; bank <= MDIO_REG_BANK_RX3;
5671 	      bank += (MDIO_REG_BANK_RX1-MDIO_REG_BANK_RX0), i++) {
5672 			CL22_WR_OVER_CL45(bp, phy,
5673 					  bank,
5674 					  MDIO_RX0_RX_EQ_BOOST,
5675 					  phy->rx_preemphasis[i]);
5676 	}
5677 
5678 	for (bank = MDIO_REG_BANK_TX0, i = 0; bank <= MDIO_REG_BANK_TX3;
5679 		      bank += (MDIO_REG_BANK_TX1 - MDIO_REG_BANK_TX0), i++) {
5680 			CL22_WR_OVER_CL45(bp, phy,
5681 					  bank,
5682 					  MDIO_TX0_TX_DRIVER,
5683 					  phy->tx_preemphasis[i]);
5684 	}
5685 }
5686 
bnx2x_xgxs_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)5687 static void bnx2x_xgxs_config_init(struct bnx2x_phy *phy,
5688 				   struct link_params *params,
5689 				   struct link_vars *vars)
5690 {
5691 	struct bnx2x *bp = params->bp;
5692 	u8 enable_cl73 = (SINGLE_MEDIA_DIRECT(params) ||
5693 			  (params->loopback_mode == LOOPBACK_XGXS));
5694 	if (!(vars->phy_flags & PHY_SGMII_FLAG)) {
5695 		if (SINGLE_MEDIA_DIRECT(params) &&
5696 		    (params->feature_config_flags &
5697 		     FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED))
5698 			bnx2x_set_preemphasis(phy, params);
5699 
5700 		/* forced speed requested? */
5701 		if (vars->line_speed != SPEED_AUTO_NEG ||
5702 		    (SINGLE_MEDIA_DIRECT(params) &&
5703 		     params->loopback_mode == LOOPBACK_EXT)) {
5704 			DP(NETIF_MSG_LINK, "not SGMII, no AN\n");
5705 
5706 			/* disable autoneg */
5707 			bnx2x_set_autoneg(phy, params, vars, 0);
5708 
5709 			/* program speed and duplex */
5710 			bnx2x_program_serdes(phy, params, vars);
5711 
5712 		} else { /* AN_mode */
5713 			DP(NETIF_MSG_LINK, "not SGMII, AN\n");
5714 
5715 			/* AN enabled */
5716 			bnx2x_set_brcm_cl37_advertisement(phy, params);
5717 
5718 			/* program duplex & pause advertisement (for aneg) */
5719 			bnx2x_set_ieee_aneg_advertisement(phy, params,
5720 							  vars->ieee_fc);
5721 
5722 			/* enable autoneg */
5723 			bnx2x_set_autoneg(phy, params, vars, enable_cl73);
5724 
5725 			/* enable and restart AN */
5726 			bnx2x_restart_autoneg(phy, params, enable_cl73);
5727 		}
5728 
5729 	} else { /* SGMII mode */
5730 		DP(NETIF_MSG_LINK, "SGMII\n");
5731 
5732 		bnx2x_initialize_sgmii_process(phy, params, vars);
5733 	}
5734 }
5735 
bnx2x_prepare_xgxs(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)5736 static int bnx2x_prepare_xgxs(struct bnx2x_phy *phy,
5737 			  struct link_params *params,
5738 			  struct link_vars *vars)
5739 {
5740 	int rc;
5741 	vars->phy_flags |= PHY_XGXS_FLAG;
5742 	if ((phy->req_line_speed &&
5743 	     ((phy->req_line_speed == SPEED_100) ||
5744 	      (phy->req_line_speed == SPEED_10))) ||
5745 	    (!phy->req_line_speed &&
5746 	     (phy->speed_cap_mask >=
5747 	      PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL) &&
5748 	     (phy->speed_cap_mask <
5749 	      PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) ||
5750 	    (phy->type == PORT_HW_CFG_SERDES_EXT_PHY_TYPE_DIRECT_SD))
5751 		vars->phy_flags |= PHY_SGMII_FLAG;
5752 	else
5753 		vars->phy_flags &= ~PHY_SGMII_FLAG;
5754 
5755 	bnx2x_calc_ieee_aneg_adv(phy, params, &vars->ieee_fc);
5756 	bnx2x_set_aer_mmd(params, phy);
5757 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT)
5758 		bnx2x_set_master_ln(params, phy);
5759 
5760 	rc = bnx2x_reset_unicore(params, phy, 0);
5761 	/* reset the SerDes and wait for reset bit return low */
5762 	if (rc != 0)
5763 		return rc;
5764 
5765 	bnx2x_set_aer_mmd(params, phy);
5766 	/* setting the masterLn_def again after the reset */
5767 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) {
5768 		bnx2x_set_master_ln(params, phy);
5769 		bnx2x_set_swap_lanes(params, phy);
5770 	}
5771 
5772 	return rc;
5773 }
5774 
bnx2x_wait_reset_complete(struct bnx2x * bp,struct bnx2x_phy * phy,struct link_params * params)5775 static u16 bnx2x_wait_reset_complete(struct bnx2x *bp,
5776 				     struct bnx2x_phy *phy,
5777 				     struct link_params *params)
5778 {
5779 	u16 cnt, ctrl;
5780 	/* Wait for soft reset to get cleared up to 1 sec */
5781 	for (cnt = 0; cnt < 1000; cnt++) {
5782 		if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE)
5783 			bnx2x_cl22_read(bp, phy,
5784 				MDIO_PMA_REG_CTRL, &ctrl);
5785 		else
5786 			bnx2x_cl45_read(bp, phy,
5787 				MDIO_PMA_DEVAD,
5788 				MDIO_PMA_REG_CTRL, &ctrl);
5789 		if (!(ctrl & (1<<15)))
5790 			break;
5791 		msleep(1);
5792 	}
5793 
5794 	if (cnt == 1000)
5795 		netdev_err(bp->dev,  "Warning: PHY was not initialized,"
5796 				      " Port %d\n",
5797 			 params->port);
5798 	DP(NETIF_MSG_LINK, "control reg 0x%x (after %d ms)\n", ctrl, cnt);
5799 	return cnt;
5800 }
5801 
bnx2x_link_int_enable(struct link_params * params)5802 static void bnx2x_link_int_enable(struct link_params *params)
5803 {
5804 	u8 port = params->port;
5805 	u32 mask;
5806 	struct bnx2x *bp = params->bp;
5807 
5808 	/* Setting the status to report on link up for either XGXS or SerDes */
5809 	if (CHIP_IS_E3(bp)) {
5810 		mask = NIG_MASK_XGXS0_LINK_STATUS;
5811 		if (!(SINGLE_MEDIA_DIRECT(params)))
5812 			mask |= NIG_MASK_MI_INT;
5813 	} else if (params->switch_cfg == SWITCH_CFG_10G) {
5814 		mask = (NIG_MASK_XGXS0_LINK10G |
5815 			NIG_MASK_XGXS0_LINK_STATUS);
5816 		DP(NETIF_MSG_LINK, "enabled XGXS interrupt\n");
5817 		if (!(SINGLE_MEDIA_DIRECT(params)) &&
5818 			params->phy[INT_PHY].type !=
5819 				PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE) {
5820 			mask |= NIG_MASK_MI_INT;
5821 			DP(NETIF_MSG_LINK, "enabled external phy int\n");
5822 		}
5823 
5824 	} else { /* SerDes */
5825 		mask = NIG_MASK_SERDES0_LINK_STATUS;
5826 		DP(NETIF_MSG_LINK, "enabled SerDes interrupt\n");
5827 		if (!(SINGLE_MEDIA_DIRECT(params)) &&
5828 			params->phy[INT_PHY].type !=
5829 				PORT_HW_CFG_SERDES_EXT_PHY_TYPE_NOT_CONN) {
5830 			mask |= NIG_MASK_MI_INT;
5831 			DP(NETIF_MSG_LINK, "enabled external phy int\n");
5832 		}
5833 	}
5834 	bnx2x_bits_en(bp,
5835 		      NIG_REG_MASK_INTERRUPT_PORT0 + port*4,
5836 		      mask);
5837 
5838 	DP(NETIF_MSG_LINK, "port %x, is_xgxs %x, int_status 0x%x\n", port,
5839 		 (params->switch_cfg == SWITCH_CFG_10G),
5840 		 REG_RD(bp, NIG_REG_STATUS_INTERRUPT_PORT0 + port*4));
5841 	DP(NETIF_MSG_LINK, " int_mask 0x%x, MI_INT %x, SERDES_LINK %x\n",
5842 		 REG_RD(bp, NIG_REG_MASK_INTERRUPT_PORT0 + port*4),
5843 		 REG_RD(bp, NIG_REG_EMAC0_STATUS_MISC_MI_INT + port*0x18),
5844 		 REG_RD(bp, NIG_REG_SERDES0_STATUS_LINK_STATUS+port*0x3c));
5845 	DP(NETIF_MSG_LINK, " 10G %x, XGXS_LINK %x\n",
5846 	   REG_RD(bp, NIG_REG_XGXS0_STATUS_LINK10G + port*0x68),
5847 	   REG_RD(bp, NIG_REG_XGXS0_STATUS_LINK_STATUS + port*0x68));
5848 }
5849 
bnx2x_rearm_latch_signal(struct bnx2x * bp,u8 port,u8 exp_mi_int)5850 static void bnx2x_rearm_latch_signal(struct bnx2x *bp, u8 port,
5851 				     u8 exp_mi_int)
5852 {
5853 	u32 latch_status = 0;
5854 
5855 	/*
5856 	 * Disable the MI INT ( external phy int ) by writing 1 to the
5857 	 * status register. Link down indication is high-active-signal,
5858 	 * so in this case we need to write the status to clear the XOR
5859 	 */
5860 	/* Read Latched signals */
5861 	latch_status = REG_RD(bp,
5862 				    NIG_REG_LATCH_STATUS_0 + port*8);
5863 	DP(NETIF_MSG_LINK, "latch_status = 0x%x\n", latch_status);
5864 	/* Handle only those with latched-signal=up.*/
5865 	if (exp_mi_int)
5866 		bnx2x_bits_en(bp,
5867 			      NIG_REG_STATUS_INTERRUPT_PORT0
5868 			      + port*4,
5869 			      NIG_STATUS_EMAC0_MI_INT);
5870 	else
5871 		bnx2x_bits_dis(bp,
5872 			       NIG_REG_STATUS_INTERRUPT_PORT0
5873 			       + port*4,
5874 			       NIG_STATUS_EMAC0_MI_INT);
5875 
5876 	if (latch_status & 1) {
5877 
5878 		/* For all latched-signal=up : Re-Arm Latch signals */
5879 		REG_WR(bp, NIG_REG_LATCH_STATUS_0 + port*8,
5880 		       (latch_status & 0xfffe) | (latch_status & 1));
5881 	}
5882 	/* For all latched-signal=up,Write original_signal to status */
5883 }
5884 
bnx2x_link_int_ack(struct link_params * params,struct link_vars * vars,u8 is_10g_plus)5885 static void bnx2x_link_int_ack(struct link_params *params,
5886 			       struct link_vars *vars, u8 is_10g_plus)
5887 {
5888 	struct bnx2x *bp = params->bp;
5889 	u8 port = params->port;
5890 	u32 mask;
5891 	/*
5892 	 * First reset all status we assume only one line will be
5893 	 * change at a time
5894 	 */
5895 	bnx2x_bits_dis(bp, NIG_REG_STATUS_INTERRUPT_PORT0 + port*4,
5896 		       (NIG_STATUS_XGXS0_LINK10G |
5897 			NIG_STATUS_XGXS0_LINK_STATUS |
5898 			NIG_STATUS_SERDES0_LINK_STATUS));
5899 	if (vars->phy_link_up) {
5900 		if (USES_WARPCORE(bp))
5901 			mask = NIG_STATUS_XGXS0_LINK_STATUS;
5902 		else {
5903 			if (is_10g_plus)
5904 				mask = NIG_STATUS_XGXS0_LINK10G;
5905 			else if (params->switch_cfg == SWITCH_CFG_10G) {
5906 				/*
5907 				 * Disable the link interrupt by writing 1 to
5908 				 * the relevant lane in the status register
5909 				 */
5910 				u32 ser_lane =
5911 					((params->lane_config &
5912 				    PORT_HW_CFG_LANE_SWAP_CFG_MASTER_MASK) >>
5913 				    PORT_HW_CFG_LANE_SWAP_CFG_MASTER_SHIFT);
5914 				mask = ((1 << ser_lane) <<
5915 				       NIG_STATUS_XGXS0_LINK_STATUS_SIZE);
5916 			} else
5917 				mask = NIG_STATUS_SERDES0_LINK_STATUS;
5918 		}
5919 		DP(NETIF_MSG_LINK, "Ack link up interrupt with mask 0x%x\n",
5920 			       mask);
5921 		bnx2x_bits_en(bp,
5922 			      NIG_REG_STATUS_INTERRUPT_PORT0 + port*4,
5923 			      mask);
5924 	}
5925 }
5926 
bnx2x_format_ver(u32 num,u8 * str,u16 * len)5927 static int bnx2x_format_ver(u32 num, u8 *str, u16 *len)
5928 {
5929 	u8 *str_ptr = str;
5930 	u32 mask = 0xf0000000;
5931 	u8 shift = 8*4;
5932 	u8 digit;
5933 	u8 remove_leading_zeros = 1;
5934 	if (*len < 10) {
5935 		/* Need more than 10chars for this format */
5936 		*str_ptr = '\0';
5937 		(*len)--;
5938 		return -EINVAL;
5939 	}
5940 	while (shift > 0) {
5941 
5942 		shift -= 4;
5943 		digit = ((num & mask) >> shift);
5944 		if (digit == 0 && remove_leading_zeros) {
5945 			mask = mask >> 4;
5946 			continue;
5947 		} else if (digit < 0xa)
5948 			*str_ptr = digit + '0';
5949 		else
5950 			*str_ptr = digit - 0xa + 'a';
5951 		remove_leading_zeros = 0;
5952 		str_ptr++;
5953 		(*len)--;
5954 		mask = mask >> 4;
5955 		if (shift == 4*4) {
5956 			*str_ptr = '.';
5957 			str_ptr++;
5958 			(*len)--;
5959 			remove_leading_zeros = 1;
5960 		}
5961 	}
5962 	return 0;
5963 }
5964 
5965 
bnx2x_null_format_ver(u32 spirom_ver,u8 * str,u16 * len)5966 static int bnx2x_null_format_ver(u32 spirom_ver, u8 *str, u16 *len)
5967 {
5968 	str[0] = '\0';
5969 	(*len)--;
5970 	return 0;
5971 }
5972 
bnx2x_get_ext_phy_fw_version(struct link_params * params,u8 driver_loaded,u8 * version,u16 len)5973 int bnx2x_get_ext_phy_fw_version(struct link_params *params, u8 driver_loaded,
5974 				 u8 *version, u16 len)
5975 {
5976 	struct bnx2x *bp;
5977 	u32 spirom_ver = 0;
5978 	int status = 0;
5979 	u8 *ver_p = version;
5980 	u16 remain_len = len;
5981 	if (version == NULL || params == NULL)
5982 		return -EINVAL;
5983 	bp = params->bp;
5984 
5985 	/* Extract first external phy*/
5986 	version[0] = '\0';
5987 	spirom_ver = REG_RD(bp, params->phy[EXT_PHY1].ver_addr);
5988 
5989 	if (params->phy[EXT_PHY1].format_fw_ver) {
5990 		status |= params->phy[EXT_PHY1].format_fw_ver(spirom_ver,
5991 							      ver_p,
5992 							      &remain_len);
5993 		ver_p += (len - remain_len);
5994 	}
5995 	if ((params->num_phys == MAX_PHYS) &&
5996 	    (params->phy[EXT_PHY2].ver_addr != 0)) {
5997 		spirom_ver = REG_RD(bp, params->phy[EXT_PHY2].ver_addr);
5998 		if (params->phy[EXT_PHY2].format_fw_ver) {
5999 			*ver_p = '/';
6000 			ver_p++;
6001 			remain_len--;
6002 			status |= params->phy[EXT_PHY2].format_fw_ver(
6003 				spirom_ver,
6004 				ver_p,
6005 				&remain_len);
6006 			ver_p = version + (len - remain_len);
6007 		}
6008 	}
6009 	*ver_p = '\0';
6010 	return status;
6011 }
6012 
bnx2x_set_xgxs_loopback(struct bnx2x_phy * phy,struct link_params * params)6013 static void bnx2x_set_xgxs_loopback(struct bnx2x_phy *phy,
6014 				    struct link_params *params)
6015 {
6016 	u8 port = params->port;
6017 	struct bnx2x *bp = params->bp;
6018 
6019 	if (phy->req_line_speed != SPEED_1000) {
6020 		u32 md_devad = 0;
6021 
6022 		DP(NETIF_MSG_LINK, "XGXS 10G loopback enable\n");
6023 
6024 		if (!CHIP_IS_E3(bp)) {
6025 			/* change the uni_phy_addr in the nig */
6026 			md_devad = REG_RD(bp, (NIG_REG_XGXS0_CTRL_MD_DEVAD +
6027 					       port*0x18));
6028 
6029 			REG_WR(bp, NIG_REG_XGXS0_CTRL_MD_DEVAD + port*0x18,
6030 			       0x5);
6031 		}
6032 
6033 		bnx2x_cl45_write(bp, phy,
6034 				 5,
6035 				 (MDIO_REG_BANK_AER_BLOCK +
6036 				  (MDIO_AER_BLOCK_AER_REG & 0xf)),
6037 				 0x2800);
6038 
6039 		bnx2x_cl45_write(bp, phy,
6040 				 5,
6041 				 (MDIO_REG_BANK_CL73_IEEEB0 +
6042 				  (MDIO_CL73_IEEEB0_CL73_AN_CONTROL & 0xf)),
6043 				 0x6041);
6044 		msleep(200);
6045 		/* set aer mmd back */
6046 		bnx2x_set_aer_mmd(params, phy);
6047 
6048 		if (!CHIP_IS_E3(bp)) {
6049 			/* and md_devad */
6050 			REG_WR(bp, NIG_REG_XGXS0_CTRL_MD_DEVAD + port*0x18,
6051 			       md_devad);
6052 		}
6053 	} else {
6054 		u16 mii_ctrl;
6055 		DP(NETIF_MSG_LINK, "XGXS 1G loopback enable\n");
6056 		bnx2x_cl45_read(bp, phy, 5,
6057 				(MDIO_REG_BANK_COMBO_IEEE0 +
6058 				(MDIO_COMBO_IEEE0_MII_CONTROL & 0xf)),
6059 				&mii_ctrl);
6060 		bnx2x_cl45_write(bp, phy, 5,
6061 				 (MDIO_REG_BANK_COMBO_IEEE0 +
6062 				 (MDIO_COMBO_IEEE0_MII_CONTROL & 0xf)),
6063 				 mii_ctrl |
6064 				 MDIO_COMBO_IEEO_MII_CONTROL_LOOPBACK);
6065 	}
6066 }
6067 
bnx2x_set_led(struct link_params * params,struct link_vars * vars,u8 mode,u32 speed)6068 int bnx2x_set_led(struct link_params *params,
6069 		  struct link_vars *vars, u8 mode, u32 speed)
6070 {
6071 	u8 port = params->port;
6072 	u16 hw_led_mode = params->hw_led_mode;
6073 	int rc = 0;
6074 	u8 phy_idx;
6075 	u32 tmp;
6076 	u32 emac_base = port ? GRCBASE_EMAC1 : GRCBASE_EMAC0;
6077 	struct bnx2x *bp = params->bp;
6078 	DP(NETIF_MSG_LINK, "bnx2x_set_led: port %x, mode %d\n", port, mode);
6079 	DP(NETIF_MSG_LINK, "speed 0x%x, hw_led_mode 0x%x\n",
6080 		 speed, hw_led_mode);
6081 	/* In case */
6082 	for (phy_idx = EXT_PHY1; phy_idx < MAX_PHYS; phy_idx++) {
6083 		if (params->phy[phy_idx].set_link_led) {
6084 			params->phy[phy_idx].set_link_led(
6085 				&params->phy[phy_idx], params, mode);
6086 		}
6087 	}
6088 
6089 	switch (mode) {
6090 	case LED_MODE_FRONT_PANEL_OFF:
6091 	case LED_MODE_OFF:
6092 		REG_WR(bp, NIG_REG_LED_10G_P0 + port*4, 0);
6093 		REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4,
6094 		       SHARED_HW_CFG_LED_MAC1);
6095 
6096 		tmp = EMAC_RD(bp, EMAC_REG_EMAC_LED);
6097 		if (params->phy[EXT_PHY1].type ==
6098 			  PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE)
6099 			EMAC_WR(bp, EMAC_REG_EMAC_LED, tmp & 0xfff1);
6100 		else {
6101 			EMAC_WR(bp, EMAC_REG_EMAC_LED,
6102 				(tmp | EMAC_LED_OVERRIDE));
6103 		}
6104 		break;
6105 
6106 	case LED_MODE_OPER:
6107 		/*
6108 		 * For all other phys, OPER mode is same as ON, so in case
6109 		 * link is down, do nothing
6110 		 */
6111 		if (!vars->link_up)
6112 			break;
6113 	case LED_MODE_ON:
6114 		if (((params->phy[EXT_PHY1].type ==
6115 			  PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727) ||
6116 			 (params->phy[EXT_PHY1].type ==
6117 			  PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722)) &&
6118 		    CHIP_IS_E2(bp) && params->num_phys == 2) {
6119 			/*
6120 			 * This is a work-around for E2+8727 Configurations
6121 			 */
6122 			if (mode == LED_MODE_ON ||
6123 				speed == SPEED_10000){
6124 				REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4, 0);
6125 				REG_WR(bp, NIG_REG_LED_10G_P0 + port*4, 1);
6126 
6127 				tmp = EMAC_RD(bp, EMAC_REG_EMAC_LED);
6128 				EMAC_WR(bp, EMAC_REG_EMAC_LED,
6129 					(tmp | EMAC_LED_OVERRIDE));
6130 				/*
6131 				 * return here without enabling traffic
6132 				 * LED blink and setting rate in ON mode.
6133 				 * In oper mode, enabling LED blink
6134 				 * and setting rate is needed.
6135 				 */
6136 				if (mode == LED_MODE_ON)
6137 					return rc;
6138 			}
6139 		} else if (SINGLE_MEDIA_DIRECT(params)) {
6140 			/*
6141 			 * This is a work-around for HW issue found when link
6142 			 * is up in CL73
6143 			 */
6144 			if ((!CHIP_IS_E3(bp)) ||
6145 			    (CHIP_IS_E3(bp) &&
6146 			     mode == LED_MODE_ON))
6147 				REG_WR(bp, NIG_REG_LED_10G_P0 + port*4, 1);
6148 
6149 			if (CHIP_IS_E1x(bp) ||
6150 			    CHIP_IS_E2(bp) ||
6151 			    (mode == LED_MODE_ON))
6152 				REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4, 0);
6153 			else
6154 				REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4,
6155 				       hw_led_mode);
6156 		} else if ((params->phy[EXT_PHY1].type ==
6157 			    PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE) &&
6158 			   (mode != LED_MODE_OPER)) {
6159 			REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4, 0);
6160 			tmp = EMAC_RD(bp, EMAC_REG_EMAC_LED);
6161 			EMAC_WR(bp, EMAC_REG_EMAC_LED, tmp | 0x3);
6162 		} else
6163 			REG_WR(bp, NIG_REG_LED_MODE_P0 + port*4,
6164 			       hw_led_mode);
6165 
6166 		REG_WR(bp, NIG_REG_LED_CONTROL_OVERRIDE_TRAFFIC_P0 + port*4, 0);
6167 		/* Set blinking rate to ~15.9Hz */
6168 		if (CHIP_IS_E3(bp))
6169 			REG_WR(bp, NIG_REG_LED_CONTROL_BLINK_RATE_P0 + port*4,
6170 			       LED_BLINK_RATE_VAL_E3);
6171 		else
6172 			REG_WR(bp, NIG_REG_LED_CONTROL_BLINK_RATE_P0 + port*4,
6173 			       LED_BLINK_RATE_VAL_E1X_E2);
6174 		REG_WR(bp, NIG_REG_LED_CONTROL_BLINK_RATE_ENA_P0 +
6175 		       port*4, 1);
6176 		if ((params->phy[EXT_PHY1].type !=
6177 		     PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE) &&
6178 		    (mode != LED_MODE_OPER)) {
6179 			tmp = EMAC_RD(bp, EMAC_REG_EMAC_LED);
6180 			EMAC_WR(bp, EMAC_REG_EMAC_LED,
6181 				(tmp & (~EMAC_LED_OVERRIDE)));
6182 		}
6183 
6184 		if (CHIP_IS_E1(bp) &&
6185 		    ((speed == SPEED_2500) ||
6186 		     (speed == SPEED_1000) ||
6187 		     (speed == SPEED_100) ||
6188 		     (speed == SPEED_10))) {
6189 			/*
6190 			 * On Everest 1 Ax chip versions for speeds less than
6191 			 * 10G LED scheme is different
6192 			 */
6193 			REG_WR(bp, NIG_REG_LED_CONTROL_OVERRIDE_TRAFFIC_P0
6194 			       + port*4, 1);
6195 			REG_WR(bp, NIG_REG_LED_CONTROL_TRAFFIC_P0 +
6196 			       port*4, 0);
6197 			REG_WR(bp, NIG_REG_LED_CONTROL_BLINK_TRAFFIC_P0 +
6198 			       port*4, 1);
6199 		}
6200 		break;
6201 
6202 	default:
6203 		rc = -EINVAL;
6204 		DP(NETIF_MSG_LINK, "bnx2x_set_led: Invalid led mode %d\n",
6205 			 mode);
6206 		break;
6207 	}
6208 	return rc;
6209 
6210 }
6211 
6212 /*
6213  * This function comes to reflect the actual link state read DIRECTLY from the
6214  * HW
6215  */
bnx2x_test_link(struct link_params * params,struct link_vars * vars,u8 is_serdes)6216 int bnx2x_test_link(struct link_params *params, struct link_vars *vars,
6217 		    u8 is_serdes)
6218 {
6219 	struct bnx2x *bp = params->bp;
6220 	u16 gp_status = 0, phy_index = 0;
6221 	u8 ext_phy_link_up = 0, serdes_phy_type;
6222 	struct link_vars temp_vars;
6223 	struct bnx2x_phy *int_phy = &params->phy[INT_PHY];
6224 
6225 	if (CHIP_IS_E3(bp)) {
6226 		u16 link_up;
6227 		if (params->req_line_speed[LINK_CONFIG_IDX(INT_PHY)]
6228 		    > SPEED_10000) {
6229 			/* Check 20G link */
6230 			bnx2x_cl45_read(bp, int_phy, MDIO_WC_DEVAD,
6231 					1, &link_up);
6232 			bnx2x_cl45_read(bp, int_phy, MDIO_WC_DEVAD,
6233 					1, &link_up);
6234 			link_up &= (1<<2);
6235 		} else {
6236 			/* Check 10G link and below*/
6237 			u8 lane = bnx2x_get_warpcore_lane(int_phy, params);
6238 			bnx2x_cl45_read(bp, int_phy, MDIO_WC_DEVAD,
6239 					MDIO_WC_REG_GP2_STATUS_GP_2_1,
6240 					&gp_status);
6241 			gp_status = ((gp_status >> 8) & 0xf) |
6242 				((gp_status >> 12) & 0xf);
6243 			link_up = gp_status & (1 << lane);
6244 		}
6245 		if (!link_up)
6246 			return -ESRCH;
6247 	} else {
6248 		CL22_RD_OVER_CL45(bp, int_phy,
6249 			  MDIO_REG_BANK_GP_STATUS,
6250 			  MDIO_GP_STATUS_TOP_AN_STATUS1,
6251 			  &gp_status);
6252 	/* link is up only if both local phy and external phy are up */
6253 	if (!(gp_status & MDIO_GP_STATUS_TOP_AN_STATUS1_LINK_STATUS))
6254 		return -ESRCH;
6255 	}
6256 	/* In XGXS loopback mode, do not check external PHY */
6257 	if (params->loopback_mode == LOOPBACK_XGXS)
6258 		return 0;
6259 
6260 	switch (params->num_phys) {
6261 	case 1:
6262 		/* No external PHY */
6263 		return 0;
6264 	case 2:
6265 		ext_phy_link_up = params->phy[EXT_PHY1].read_status(
6266 			&params->phy[EXT_PHY1],
6267 			params, &temp_vars);
6268 		break;
6269 	case 3: /* Dual Media */
6270 		for (phy_index = EXT_PHY1; phy_index < params->num_phys;
6271 		      phy_index++) {
6272 			serdes_phy_type = ((params->phy[phy_index].media_type ==
6273 					    ETH_PHY_SFP_FIBER) ||
6274 					   (params->phy[phy_index].media_type ==
6275 					    ETH_PHY_XFP_FIBER) ||
6276 					   (params->phy[phy_index].media_type ==
6277 					    ETH_PHY_DA_TWINAX));
6278 
6279 			if (is_serdes != serdes_phy_type)
6280 				continue;
6281 			if (params->phy[phy_index].read_status) {
6282 				ext_phy_link_up |=
6283 					params->phy[phy_index].read_status(
6284 						&params->phy[phy_index],
6285 						params, &temp_vars);
6286 			}
6287 		}
6288 		break;
6289 	}
6290 	if (ext_phy_link_up)
6291 		return 0;
6292 	return -ESRCH;
6293 }
6294 
bnx2x_link_initialize(struct link_params * params,struct link_vars * vars)6295 static int bnx2x_link_initialize(struct link_params *params,
6296 				 struct link_vars *vars)
6297 {
6298 	int rc = 0;
6299 	u8 phy_index, non_ext_phy;
6300 	struct bnx2x *bp = params->bp;
6301 	/*
6302 	 * In case of external phy existence, the line speed would be the
6303 	 * line speed linked up by the external phy. In case it is direct
6304 	 * only, then the line_speed during initialization will be
6305 	 * equal to the req_line_speed
6306 	 */
6307 	vars->line_speed = params->phy[INT_PHY].req_line_speed;
6308 
6309 	/*
6310 	 * Initialize the internal phy in case this is a direct board
6311 	 * (no external phys), or this board has external phy which requires
6312 	 * to first.
6313 	 */
6314 	if (!USES_WARPCORE(bp))
6315 		bnx2x_prepare_xgxs(&params->phy[INT_PHY], params, vars);
6316 	/* init ext phy and enable link state int */
6317 	non_ext_phy = (SINGLE_MEDIA_DIRECT(params) ||
6318 		       (params->loopback_mode == LOOPBACK_XGXS));
6319 
6320 	if (non_ext_phy ||
6321 	    (params->phy[EXT_PHY1].flags & FLAGS_INIT_XGXS_FIRST) ||
6322 	    (params->loopback_mode == LOOPBACK_EXT_PHY)) {
6323 		struct bnx2x_phy *phy = &params->phy[INT_PHY];
6324 		if (vars->line_speed == SPEED_AUTO_NEG &&
6325 		    (CHIP_IS_E1x(bp) ||
6326 		     CHIP_IS_E2(bp)))
6327 			bnx2x_set_parallel_detection(phy, params);
6328 			if (params->phy[INT_PHY].config_init)
6329 				params->phy[INT_PHY].config_init(phy,
6330 								 params,
6331 								 vars);
6332 	}
6333 
6334 	/* Init external phy*/
6335 	if (non_ext_phy) {
6336 		if (params->phy[INT_PHY].supported &
6337 		    SUPPORTED_FIBRE)
6338 			vars->link_status |= LINK_STATUS_SERDES_LINK;
6339 	} else {
6340 		for (phy_index = EXT_PHY1; phy_index < params->num_phys;
6341 		      phy_index++) {
6342 			/*
6343 			 * No need to initialize second phy in case of first
6344 			 * phy only selection. In case of second phy, we do
6345 			 * need to initialize the first phy, since they are
6346 			 * connected.
6347 			 */
6348 			if (params->phy[phy_index].supported &
6349 			    SUPPORTED_FIBRE)
6350 				vars->link_status |= LINK_STATUS_SERDES_LINK;
6351 
6352 			if (phy_index == EXT_PHY2 &&
6353 			    (bnx2x_phy_selection(params) ==
6354 			     PORT_HW_CFG_PHY_SELECTION_FIRST_PHY)) {
6355 				DP(NETIF_MSG_LINK,
6356 				   "Not initializing second phy\n");
6357 				continue;
6358 			}
6359 			params->phy[phy_index].config_init(
6360 				&params->phy[phy_index],
6361 				params, vars);
6362 		}
6363 	}
6364 	/* Reset the interrupt indication after phy was initialized */
6365 	bnx2x_bits_dis(bp, NIG_REG_STATUS_INTERRUPT_PORT0 +
6366 		       params->port*4,
6367 		       (NIG_STATUS_XGXS0_LINK10G |
6368 			NIG_STATUS_XGXS0_LINK_STATUS |
6369 			NIG_STATUS_SERDES0_LINK_STATUS |
6370 			NIG_MASK_MI_INT));
6371 	bnx2x_update_mng(params, vars->link_status);
6372 	return rc;
6373 }
6374 
bnx2x_int_link_reset(struct bnx2x_phy * phy,struct link_params * params)6375 static void bnx2x_int_link_reset(struct bnx2x_phy *phy,
6376 				 struct link_params *params)
6377 {
6378 	/* reset the SerDes/XGXS */
6379 	REG_WR(params->bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_3_CLEAR,
6380 	       (0x1ff << (params->port*16)));
6381 }
6382 
bnx2x_common_ext_link_reset(struct bnx2x_phy * phy,struct link_params * params)6383 static void bnx2x_common_ext_link_reset(struct bnx2x_phy *phy,
6384 					struct link_params *params)
6385 {
6386 	struct bnx2x *bp = params->bp;
6387 	u8 gpio_port;
6388 	/* HW reset */
6389 	if (CHIP_IS_E2(bp))
6390 		gpio_port = BP_PATH(bp);
6391 	else
6392 		gpio_port = params->port;
6393 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1,
6394 		       MISC_REGISTERS_GPIO_OUTPUT_LOW,
6395 		       gpio_port);
6396 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
6397 		       MISC_REGISTERS_GPIO_OUTPUT_LOW,
6398 		       gpio_port);
6399 	DP(NETIF_MSG_LINK, "reset external PHY\n");
6400 }
6401 
bnx2x_update_link_down(struct link_params * params,struct link_vars * vars)6402 static int bnx2x_update_link_down(struct link_params *params,
6403 				  struct link_vars *vars)
6404 {
6405 	struct bnx2x *bp = params->bp;
6406 	u8 port = params->port;
6407 
6408 	DP(NETIF_MSG_LINK, "Port %x: Link is down\n", port);
6409 	bnx2x_set_led(params, vars, LED_MODE_OFF, 0);
6410 	vars->phy_flags &= ~PHY_PHYSICAL_LINK_FLAG;
6411 	/* indicate no mac active */
6412 	vars->mac_type = MAC_TYPE_NONE;
6413 
6414 	/* update shared memory */
6415 	vars->link_status &= ~(LINK_STATUS_SPEED_AND_DUPLEX_MASK |
6416 			       LINK_STATUS_LINK_UP |
6417 			       LINK_STATUS_PHYSICAL_LINK_FLAG |
6418 			       LINK_STATUS_AUTO_NEGOTIATE_COMPLETE |
6419 			       LINK_STATUS_RX_FLOW_CONTROL_FLAG_MASK |
6420 			       LINK_STATUS_TX_FLOW_CONTROL_FLAG_MASK |
6421 			       LINK_STATUS_PARALLEL_DETECTION_FLAG_MASK);
6422 	vars->line_speed = 0;
6423 	bnx2x_update_mng(params, vars->link_status);
6424 
6425 	/* activate nig drain */
6426 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + port*4, 1);
6427 
6428 	/* disable emac */
6429 	if (!CHIP_IS_E3(bp))
6430 		REG_WR(bp, NIG_REG_NIG_EMAC0_EN + port*4, 0);
6431 
6432 	msleep(10);
6433 	/* reset BigMac/Xmac */
6434 	if (CHIP_IS_E1x(bp) ||
6435 	    CHIP_IS_E2(bp)) {
6436 		bnx2x_bmac_rx_disable(bp, params->port);
6437 		REG_WR(bp, GRCBASE_MISC +
6438 		       MISC_REGISTERS_RESET_REG_2_CLEAR,
6439 	       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
6440 	}
6441 	if (CHIP_IS_E3(bp)) {
6442 		bnx2x_xmac_disable(params);
6443 		bnx2x_umac_disable(params);
6444 	}
6445 
6446 	return 0;
6447 }
6448 
bnx2x_update_link_up(struct link_params * params,struct link_vars * vars,u8 link_10g)6449 static int bnx2x_update_link_up(struct link_params *params,
6450 				struct link_vars *vars,
6451 				u8 link_10g)
6452 {
6453 	struct bnx2x *bp = params->bp;
6454 	u8 port = params->port;
6455 	int rc = 0;
6456 
6457 	vars->link_status |= (LINK_STATUS_LINK_UP |
6458 			      LINK_STATUS_PHYSICAL_LINK_FLAG);
6459 	vars->phy_flags |= PHY_PHYSICAL_LINK_FLAG;
6460 
6461 	if (vars->flow_ctrl & BNX2X_FLOW_CTRL_TX)
6462 		vars->link_status |=
6463 			LINK_STATUS_TX_FLOW_CONTROL_ENABLED;
6464 
6465 	if (vars->flow_ctrl & BNX2X_FLOW_CTRL_RX)
6466 		vars->link_status |=
6467 			LINK_STATUS_RX_FLOW_CONTROL_ENABLED;
6468 	if (USES_WARPCORE(bp)) {
6469 		if (link_10g) {
6470 			if (bnx2x_xmac_enable(params, vars, 0) ==
6471 			    -ESRCH) {
6472 				DP(NETIF_MSG_LINK, "Found errors on XMAC\n");
6473 				vars->link_up = 0;
6474 				vars->phy_flags |= PHY_HALF_OPEN_CONN_FLAG;
6475 				vars->link_status &= ~LINK_STATUS_LINK_UP;
6476 			}
6477 		} else
6478 			bnx2x_umac_enable(params, vars, 0);
6479 		bnx2x_set_led(params, vars,
6480 			      LED_MODE_OPER, vars->line_speed);
6481 	}
6482 	if ((CHIP_IS_E1x(bp) ||
6483 	     CHIP_IS_E2(bp))) {
6484 		if (link_10g) {
6485 			if (bnx2x_bmac_enable(params, vars, 0) ==
6486 			    -ESRCH) {
6487 				DP(NETIF_MSG_LINK, "Found errors on BMAC\n");
6488 				vars->link_up = 0;
6489 				vars->phy_flags |= PHY_HALF_OPEN_CONN_FLAG;
6490 				vars->link_status &= ~LINK_STATUS_LINK_UP;
6491 			}
6492 
6493 			bnx2x_set_led(params, vars,
6494 				      LED_MODE_OPER, SPEED_10000);
6495 		} else {
6496 			rc = bnx2x_emac_program(params, vars);
6497 			bnx2x_emac_enable(params, vars, 0);
6498 
6499 			/* AN complete? */
6500 			if ((vars->link_status &
6501 			     LINK_STATUS_AUTO_NEGOTIATE_COMPLETE)
6502 			    && (!(vars->phy_flags & PHY_SGMII_FLAG)) &&
6503 			    SINGLE_MEDIA_DIRECT(params))
6504 				bnx2x_set_gmii_tx_driver(params);
6505 		}
6506 	}
6507 
6508 	/* PBF - link up */
6509 	if (CHIP_IS_E1x(bp))
6510 		rc |= bnx2x_pbf_update(params, vars->flow_ctrl,
6511 				       vars->line_speed);
6512 
6513 	/* disable drain */
6514 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + port*4, 0);
6515 
6516 	/* update shared memory */
6517 	bnx2x_update_mng(params, vars->link_status);
6518 	msleep(20);
6519 	return rc;
6520 }
6521 /*
6522  * The bnx2x_link_update function should be called upon link
6523  * interrupt.
6524  * Link is considered up as follows:
6525  * - DIRECT_SINGLE_MEDIA - Only XGXS link (internal link) needs
6526  *   to be up
6527  * - SINGLE_MEDIA - The link between the 577xx and the external
6528  *   phy (XGXS) need to up as well as the external link of the
6529  *   phy (PHY_EXT1)
6530  * - DUAL_MEDIA - The link between the 577xx and the first
6531  *   external phy needs to be up, and at least one of the 2
6532  *   external phy link must be up.
6533  */
bnx2x_link_update(struct link_params * params,struct link_vars * vars)6534 int bnx2x_link_update(struct link_params *params, struct link_vars *vars)
6535 {
6536 	struct bnx2x *bp = params->bp;
6537 	struct link_vars phy_vars[MAX_PHYS];
6538 	u8 port = params->port;
6539 	u8 link_10g_plus, phy_index;
6540 	u8 ext_phy_link_up = 0, cur_link_up;
6541 	int rc = 0;
6542 	u8 is_mi_int = 0;
6543 	u16 ext_phy_line_speed = 0, prev_line_speed = vars->line_speed;
6544 	u8 active_external_phy = INT_PHY;
6545 	vars->phy_flags &= ~PHY_HALF_OPEN_CONN_FLAG;
6546 	for (phy_index = INT_PHY; phy_index < params->num_phys;
6547 	      phy_index++) {
6548 		phy_vars[phy_index].flow_ctrl = 0;
6549 		phy_vars[phy_index].link_status = 0;
6550 		phy_vars[phy_index].line_speed = 0;
6551 		phy_vars[phy_index].duplex = DUPLEX_FULL;
6552 		phy_vars[phy_index].phy_link_up = 0;
6553 		phy_vars[phy_index].link_up = 0;
6554 		phy_vars[phy_index].fault_detected = 0;
6555 	}
6556 
6557 	if (USES_WARPCORE(bp))
6558 		bnx2x_set_aer_mmd(params, &params->phy[INT_PHY]);
6559 
6560 	DP(NETIF_MSG_LINK, "port %x, XGXS?%x, int_status 0x%x\n",
6561 		 port, (vars->phy_flags & PHY_XGXS_FLAG),
6562 		 REG_RD(bp, NIG_REG_STATUS_INTERRUPT_PORT0 + port*4));
6563 
6564 	is_mi_int = (u8)(REG_RD(bp, NIG_REG_EMAC0_STATUS_MISC_MI_INT +
6565 				port*0x18) > 0);
6566 	DP(NETIF_MSG_LINK, "int_mask 0x%x MI_INT %x, SERDES_LINK %x\n",
6567 		 REG_RD(bp, NIG_REG_MASK_INTERRUPT_PORT0 + port*4),
6568 		 is_mi_int,
6569 		 REG_RD(bp, NIG_REG_SERDES0_STATUS_LINK_STATUS + port*0x3c));
6570 
6571 	DP(NETIF_MSG_LINK, " 10G %x, XGXS_LINK %x\n",
6572 	  REG_RD(bp, NIG_REG_XGXS0_STATUS_LINK10G + port*0x68),
6573 	  REG_RD(bp, NIG_REG_XGXS0_STATUS_LINK_STATUS + port*0x68));
6574 
6575 	/* disable emac */
6576 	if (!CHIP_IS_E3(bp))
6577 		REG_WR(bp, NIG_REG_NIG_EMAC0_EN + port*4, 0);
6578 
6579 	/*
6580 	 * Step 1:
6581 	 * Check external link change only for external phys, and apply
6582 	 * priority selection between them in case the link on both phys
6583 	 * is up. Note that instead of the common vars, a temporary
6584 	 * vars argument is used since each phy may have different link/
6585 	 * speed/duplex result
6586 	 */
6587 	for (phy_index = EXT_PHY1; phy_index < params->num_phys;
6588 	      phy_index++) {
6589 		struct bnx2x_phy *phy = &params->phy[phy_index];
6590 		if (!phy->read_status)
6591 			continue;
6592 		/* Read link status and params of this ext phy */
6593 		cur_link_up = phy->read_status(phy, params,
6594 					       &phy_vars[phy_index]);
6595 		if (cur_link_up) {
6596 			DP(NETIF_MSG_LINK, "phy in index %d link is up\n",
6597 				   phy_index);
6598 		} else {
6599 			DP(NETIF_MSG_LINK, "phy in index %d link is down\n",
6600 				   phy_index);
6601 			continue;
6602 		}
6603 
6604 		if (!ext_phy_link_up) {
6605 			ext_phy_link_up = 1;
6606 			active_external_phy = phy_index;
6607 		} else {
6608 			switch (bnx2x_phy_selection(params)) {
6609 			case PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT:
6610 			case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY:
6611 			/*
6612 			 * In this option, the first PHY makes sure to pass the
6613 			 * traffic through itself only.
6614 			 * Its not clear how to reset the link on the second phy
6615 			 */
6616 				active_external_phy = EXT_PHY1;
6617 				break;
6618 			case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY:
6619 			/*
6620 			 * In this option, the first PHY makes sure to pass the
6621 			 * traffic through the second PHY.
6622 			 */
6623 				active_external_phy = EXT_PHY2;
6624 				break;
6625 			default:
6626 			/*
6627 			 * Link indication on both PHYs with the following cases
6628 			 * is invalid:
6629 			 * - FIRST_PHY means that second phy wasn't initialized,
6630 			 * hence its link is expected to be down
6631 			 * - SECOND_PHY means that first phy should not be able
6632 			 * to link up by itself (using configuration)
6633 			 * - DEFAULT should be overriden during initialiazation
6634 			 */
6635 				DP(NETIF_MSG_LINK, "Invalid link indication"
6636 					   "mpc=0x%x. DISABLING LINK !!!\n",
6637 					   params->multi_phy_config);
6638 				ext_phy_link_up = 0;
6639 				break;
6640 			}
6641 		}
6642 	}
6643 	prev_line_speed = vars->line_speed;
6644 	/*
6645 	 * Step 2:
6646 	 * Read the status of the internal phy. In case of
6647 	 * DIRECT_SINGLE_MEDIA board, this link is the external link,
6648 	 * otherwise this is the link between the 577xx and the first
6649 	 * external phy
6650 	 */
6651 	if (params->phy[INT_PHY].read_status)
6652 		params->phy[INT_PHY].read_status(
6653 			&params->phy[INT_PHY],
6654 			params, vars);
6655 	/*
6656 	 * The INT_PHY flow control reside in the vars. This include the
6657 	 * case where the speed or flow control are not set to AUTO.
6658 	 * Otherwise, the active external phy flow control result is set
6659 	 * to the vars. The ext_phy_line_speed is needed to check if the
6660 	 * speed is different between the internal phy and external phy.
6661 	 * This case may be result of intermediate link speed change.
6662 	 */
6663 	if (active_external_phy > INT_PHY) {
6664 		vars->flow_ctrl = phy_vars[active_external_phy].flow_ctrl;
6665 		/*
6666 		 * Link speed is taken from the XGXS. AN and FC result from
6667 		 * the external phy.
6668 		 */
6669 		vars->link_status |= phy_vars[active_external_phy].link_status;
6670 
6671 		/*
6672 		 * if active_external_phy is first PHY and link is up - disable
6673 		 * disable TX on second external PHY
6674 		 */
6675 		if (active_external_phy == EXT_PHY1) {
6676 			if (params->phy[EXT_PHY2].phy_specific_func) {
6677 				DP(NETIF_MSG_LINK,
6678 				   "Disabling TX on EXT_PHY2\n");
6679 				params->phy[EXT_PHY2].phy_specific_func(
6680 					&params->phy[EXT_PHY2],
6681 					params, DISABLE_TX);
6682 			}
6683 		}
6684 
6685 		ext_phy_line_speed = phy_vars[active_external_phy].line_speed;
6686 		vars->duplex = phy_vars[active_external_phy].duplex;
6687 		if (params->phy[active_external_phy].supported &
6688 		    SUPPORTED_FIBRE)
6689 			vars->link_status |= LINK_STATUS_SERDES_LINK;
6690 		else
6691 			vars->link_status &= ~LINK_STATUS_SERDES_LINK;
6692 		DP(NETIF_MSG_LINK, "Active external phy selected: %x\n",
6693 			   active_external_phy);
6694 	}
6695 
6696 	for (phy_index = EXT_PHY1; phy_index < params->num_phys;
6697 	      phy_index++) {
6698 		if (params->phy[phy_index].flags &
6699 		    FLAGS_REARM_LATCH_SIGNAL) {
6700 			bnx2x_rearm_latch_signal(bp, port,
6701 						 phy_index ==
6702 						 active_external_phy);
6703 			break;
6704 		}
6705 	}
6706 	DP(NETIF_MSG_LINK, "vars->flow_ctrl = 0x%x, vars->link_status = 0x%x,"
6707 		   " ext_phy_line_speed = %d\n", vars->flow_ctrl,
6708 		   vars->link_status, ext_phy_line_speed);
6709 	/*
6710 	 * Upon link speed change set the NIG into drain mode. Comes to
6711 	 * deals with possible FIFO glitch due to clk change when speed
6712 	 * is decreased without link down indicator
6713 	 */
6714 
6715 	if (vars->phy_link_up) {
6716 		if (!(SINGLE_MEDIA_DIRECT(params)) && ext_phy_link_up &&
6717 		    (ext_phy_line_speed != vars->line_speed)) {
6718 			DP(NETIF_MSG_LINK, "Internal link speed %d is"
6719 				   " different than the external"
6720 				   " link speed %d\n", vars->line_speed,
6721 				   ext_phy_line_speed);
6722 			vars->phy_link_up = 0;
6723 		} else if (prev_line_speed != vars->line_speed) {
6724 			REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4,
6725 			       0);
6726 			msleep(1);
6727 		}
6728 	}
6729 
6730 	/* anything 10 and over uses the bmac */
6731 	link_10g_plus = (vars->line_speed >= SPEED_10000);
6732 
6733 	bnx2x_link_int_ack(params, vars, link_10g_plus);
6734 
6735 	/*
6736 	 * In case external phy link is up, and internal link is down
6737 	 * (not initialized yet probably after link initialization, it
6738 	 * needs to be initialized.
6739 	 * Note that after link down-up as result of cable plug, the xgxs
6740 	 * link would probably become up again without the need
6741 	 * initialize it
6742 	 */
6743 	if (!(SINGLE_MEDIA_DIRECT(params))) {
6744 		DP(NETIF_MSG_LINK, "ext_phy_link_up = %d, int_link_up = %d,"
6745 			   " init_preceding = %d\n", ext_phy_link_up,
6746 			   vars->phy_link_up,
6747 			   params->phy[EXT_PHY1].flags &
6748 			   FLAGS_INIT_XGXS_FIRST);
6749 		if (!(params->phy[EXT_PHY1].flags &
6750 		      FLAGS_INIT_XGXS_FIRST)
6751 		    && ext_phy_link_up && !vars->phy_link_up) {
6752 			vars->line_speed = ext_phy_line_speed;
6753 			if (vars->line_speed < SPEED_1000)
6754 				vars->phy_flags |= PHY_SGMII_FLAG;
6755 			else
6756 				vars->phy_flags &= ~PHY_SGMII_FLAG;
6757 
6758 			if (params->phy[INT_PHY].config_init)
6759 				params->phy[INT_PHY].config_init(
6760 					&params->phy[INT_PHY], params,
6761 						vars);
6762 		}
6763 	}
6764 	/*
6765 	 * Link is up only if both local phy and external phy (in case of
6766 	 * non-direct board) are up and no fault detected on active PHY.
6767 	 */
6768 	vars->link_up = (vars->phy_link_up &&
6769 			 (ext_phy_link_up ||
6770 			  SINGLE_MEDIA_DIRECT(params)) &&
6771 			 (phy_vars[active_external_phy].fault_detected == 0));
6772 
6773 	if (vars->link_up)
6774 		rc = bnx2x_update_link_up(params, vars, link_10g_plus);
6775 	else
6776 		rc = bnx2x_update_link_down(params, vars);
6777 
6778 	return rc;
6779 }
6780 
6781 /*****************************************************************************/
6782 /*			    External Phy section			     */
6783 /*****************************************************************************/
bnx2x_ext_phy_hw_reset(struct bnx2x * bp,u8 port)6784 void bnx2x_ext_phy_hw_reset(struct bnx2x *bp, u8 port)
6785 {
6786 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1,
6787 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, port);
6788 	msleep(1);
6789 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1,
6790 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, port);
6791 }
6792 
bnx2x_save_spirom_version(struct bnx2x * bp,u8 port,u32 spirom_ver,u32 ver_addr)6793 static void bnx2x_save_spirom_version(struct bnx2x *bp, u8 port,
6794 				      u32 spirom_ver, u32 ver_addr)
6795 {
6796 	DP(NETIF_MSG_LINK, "FW version 0x%x:0x%x for port %d\n",
6797 		 (u16)(spirom_ver>>16), (u16)spirom_ver, port);
6798 
6799 	if (ver_addr)
6800 		REG_WR(bp, ver_addr, spirom_ver);
6801 }
6802 
bnx2x_save_bcm_spirom_ver(struct bnx2x * bp,struct bnx2x_phy * phy,u8 port)6803 static void bnx2x_save_bcm_spirom_ver(struct bnx2x *bp,
6804 				      struct bnx2x_phy *phy,
6805 				      u8 port)
6806 {
6807 	u16 fw_ver1, fw_ver2;
6808 
6809 	bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
6810 			MDIO_PMA_REG_ROM_VER1, &fw_ver1);
6811 	bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
6812 			MDIO_PMA_REG_ROM_VER2, &fw_ver2);
6813 	bnx2x_save_spirom_version(bp, port, (u32)(fw_ver1<<16 | fw_ver2),
6814 				  phy->ver_addr);
6815 }
6816 
bnx2x_ext_phy_10G_an_resolve(struct bnx2x * bp,struct bnx2x_phy * phy,struct link_vars * vars)6817 static void bnx2x_ext_phy_10G_an_resolve(struct bnx2x *bp,
6818 				       struct bnx2x_phy *phy,
6819 				       struct link_vars *vars)
6820 {
6821 	u16 val;
6822 	bnx2x_cl45_read(bp, phy,
6823 			MDIO_AN_DEVAD,
6824 			MDIO_AN_REG_STATUS, &val);
6825 	bnx2x_cl45_read(bp, phy,
6826 			MDIO_AN_DEVAD,
6827 			MDIO_AN_REG_STATUS, &val);
6828 	if (val & (1<<5))
6829 		vars->link_status |= LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
6830 	if ((val & (1<<0)) == 0)
6831 		vars->link_status |= LINK_STATUS_PARALLEL_DETECTION_USED;
6832 }
6833 
6834 /******************************************************************/
6835 /*		common BCM8073/BCM8727 PHY SECTION		  */
6836 /******************************************************************/
bnx2x_8073_resolve_fc(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)6837 static void bnx2x_8073_resolve_fc(struct bnx2x_phy *phy,
6838 				  struct link_params *params,
6839 				  struct link_vars *vars)
6840 {
6841 	struct bnx2x *bp = params->bp;
6842 	if (phy->req_line_speed == SPEED_10 ||
6843 	    phy->req_line_speed == SPEED_100) {
6844 		vars->flow_ctrl = phy->req_flow_ctrl;
6845 		return;
6846 	}
6847 
6848 	if (bnx2x_ext_phy_resolve_fc(phy, params, vars) &&
6849 	    (vars->flow_ctrl == BNX2X_FLOW_CTRL_NONE)) {
6850 		u16 pause_result;
6851 		u16 ld_pause;		/* local */
6852 		u16 lp_pause;		/* link partner */
6853 		bnx2x_cl45_read(bp, phy,
6854 				MDIO_AN_DEVAD,
6855 				MDIO_AN_REG_CL37_FC_LD, &ld_pause);
6856 
6857 		bnx2x_cl45_read(bp, phy,
6858 				MDIO_AN_DEVAD,
6859 				MDIO_AN_REG_CL37_FC_LP, &lp_pause);
6860 		pause_result = (ld_pause &
6861 				MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) >> 5;
6862 		pause_result |= (lp_pause &
6863 				 MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) >> 7;
6864 
6865 		bnx2x_pause_resolve(vars, pause_result);
6866 		DP(NETIF_MSG_LINK, "Ext PHY CL37 pause result 0x%x\n",
6867 			   pause_result);
6868 	}
6869 }
bnx2x_8073_8727_external_rom_boot(struct bnx2x * bp,struct bnx2x_phy * phy,u8 port)6870 static int bnx2x_8073_8727_external_rom_boot(struct bnx2x *bp,
6871 					     struct bnx2x_phy *phy,
6872 					     u8 port)
6873 {
6874 	u32 count = 0;
6875 	u16 fw_ver1, fw_msgout;
6876 	int rc = 0;
6877 
6878 	/* Boot port from external ROM  */
6879 	/* EDC grst */
6880 	bnx2x_cl45_write(bp, phy,
6881 			 MDIO_PMA_DEVAD,
6882 			 MDIO_PMA_REG_GEN_CTRL,
6883 			 0x0001);
6884 
6885 	/* ucode reboot and rst */
6886 	bnx2x_cl45_write(bp, phy,
6887 			 MDIO_PMA_DEVAD,
6888 			 MDIO_PMA_REG_GEN_CTRL,
6889 			 0x008c);
6890 
6891 	bnx2x_cl45_write(bp, phy,
6892 			 MDIO_PMA_DEVAD,
6893 			 MDIO_PMA_REG_MISC_CTRL1, 0x0001);
6894 
6895 	/* Reset internal microprocessor */
6896 	bnx2x_cl45_write(bp, phy,
6897 			 MDIO_PMA_DEVAD,
6898 			 MDIO_PMA_REG_GEN_CTRL,
6899 			 MDIO_PMA_REG_GEN_CTRL_ROM_MICRO_RESET);
6900 
6901 	/* Release srst bit */
6902 	bnx2x_cl45_write(bp, phy,
6903 			 MDIO_PMA_DEVAD,
6904 			 MDIO_PMA_REG_GEN_CTRL,
6905 			 MDIO_PMA_REG_GEN_CTRL_ROM_RESET_INTERNAL_MP);
6906 
6907 	/* Delay 100ms per the PHY specifications */
6908 	msleep(100);
6909 
6910 	/* 8073 sometimes taking longer to download */
6911 	do {
6912 		count++;
6913 		if (count > 300) {
6914 			DP(NETIF_MSG_LINK,
6915 				 "bnx2x_8073_8727_external_rom_boot port %x:"
6916 				 "Download failed. fw version = 0x%x\n",
6917 				 port, fw_ver1);
6918 			rc = -EINVAL;
6919 			break;
6920 		}
6921 
6922 		bnx2x_cl45_read(bp, phy,
6923 				MDIO_PMA_DEVAD,
6924 				MDIO_PMA_REG_ROM_VER1, &fw_ver1);
6925 		bnx2x_cl45_read(bp, phy,
6926 				MDIO_PMA_DEVAD,
6927 				MDIO_PMA_REG_M8051_MSGOUT_REG, &fw_msgout);
6928 
6929 		msleep(1);
6930 	} while (fw_ver1 == 0 || fw_ver1 == 0x4321 ||
6931 			((fw_msgout & 0xff) != 0x03 && (phy->type ==
6932 			PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073)));
6933 
6934 	/* Clear ser_boot_ctl bit */
6935 	bnx2x_cl45_write(bp, phy,
6936 			 MDIO_PMA_DEVAD,
6937 			 MDIO_PMA_REG_MISC_CTRL1, 0x0000);
6938 	bnx2x_save_bcm_spirom_ver(bp, phy, port);
6939 
6940 	DP(NETIF_MSG_LINK,
6941 		 "bnx2x_8073_8727_external_rom_boot port %x:"
6942 		 "Download complete. fw version = 0x%x\n",
6943 		 port, fw_ver1);
6944 
6945 	return rc;
6946 }
6947 
6948 /******************************************************************/
6949 /*			BCM8073 PHY SECTION			  */
6950 /******************************************************************/
bnx2x_8073_is_snr_needed(struct bnx2x * bp,struct bnx2x_phy * phy)6951 static int bnx2x_8073_is_snr_needed(struct bnx2x *bp, struct bnx2x_phy *phy)
6952 {
6953 	/* This is only required for 8073A1, version 102 only */
6954 	u16 val;
6955 
6956 	/* Read 8073 HW revision*/
6957 	bnx2x_cl45_read(bp, phy,
6958 			MDIO_PMA_DEVAD,
6959 			MDIO_PMA_REG_8073_CHIP_REV, &val);
6960 
6961 	if (val != 1) {
6962 		/* No need to workaround in 8073 A1 */
6963 		return 0;
6964 	}
6965 
6966 	bnx2x_cl45_read(bp, phy,
6967 			MDIO_PMA_DEVAD,
6968 			MDIO_PMA_REG_ROM_VER2, &val);
6969 
6970 	/* SNR should be applied only for version 0x102 */
6971 	if (val != 0x102)
6972 		return 0;
6973 
6974 	return 1;
6975 }
6976 
bnx2x_8073_xaui_wa(struct bnx2x * bp,struct bnx2x_phy * phy)6977 static int bnx2x_8073_xaui_wa(struct bnx2x *bp, struct bnx2x_phy *phy)
6978 {
6979 	u16 val, cnt, cnt1 ;
6980 
6981 	bnx2x_cl45_read(bp, phy,
6982 			MDIO_PMA_DEVAD,
6983 			MDIO_PMA_REG_8073_CHIP_REV, &val);
6984 
6985 	if (val > 0) {
6986 		/* No need to workaround in 8073 A1 */
6987 		return 0;
6988 	}
6989 	/* XAUI workaround in 8073 A0: */
6990 
6991 	/*
6992 	 * After loading the boot ROM and restarting Autoneg, poll
6993 	 * Dev1, Reg $C820:
6994 	 */
6995 
6996 	for (cnt = 0; cnt < 1000; cnt++) {
6997 		bnx2x_cl45_read(bp, phy,
6998 				MDIO_PMA_DEVAD,
6999 				MDIO_PMA_REG_8073_SPEED_LINK_STATUS,
7000 				&val);
7001 		  /*
7002 		   * If bit [14] = 0 or bit [13] = 0, continue on with
7003 		   * system initialization (XAUI work-around not required, as
7004 		   * these bits indicate 2.5G or 1G link up).
7005 		   */
7006 		if (!(val & (1<<14)) || !(val & (1<<13))) {
7007 			DP(NETIF_MSG_LINK, "XAUI work-around not required\n");
7008 			return 0;
7009 		} else if (!(val & (1<<15))) {
7010 			DP(NETIF_MSG_LINK, "bit 15 went off\n");
7011 			/*
7012 			 * If bit 15 is 0, then poll Dev1, Reg $C841 until it's
7013 			 * MSB (bit15) goes to 1 (indicating that the XAUI
7014 			 * workaround has completed), then continue on with
7015 			 * system initialization.
7016 			 */
7017 			for (cnt1 = 0; cnt1 < 1000; cnt1++) {
7018 				bnx2x_cl45_read(bp, phy,
7019 					MDIO_PMA_DEVAD,
7020 					MDIO_PMA_REG_8073_XAUI_WA, &val);
7021 				if (val & (1<<15)) {
7022 					DP(NETIF_MSG_LINK,
7023 					  "XAUI workaround has completed\n");
7024 					return 0;
7025 				 }
7026 				 msleep(3);
7027 			}
7028 			break;
7029 		}
7030 		msleep(3);
7031 	}
7032 	DP(NETIF_MSG_LINK, "Warning: XAUI work-around timeout !!!\n");
7033 	return -EINVAL;
7034 }
7035 
bnx2x_807x_force_10G(struct bnx2x * bp,struct bnx2x_phy * phy)7036 static void bnx2x_807x_force_10G(struct bnx2x *bp, struct bnx2x_phy *phy)
7037 {
7038 	/* Force KR or KX */
7039 	bnx2x_cl45_write(bp, phy,
7040 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x2040);
7041 	bnx2x_cl45_write(bp, phy,
7042 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2, 0x000b);
7043 	bnx2x_cl45_write(bp, phy,
7044 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_BCM_CTRL, 0x0000);
7045 	bnx2x_cl45_write(bp, phy,
7046 			 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x0000);
7047 }
7048 
bnx2x_8073_set_pause_cl37(struct link_params * params,struct bnx2x_phy * phy,struct link_vars * vars)7049 static void bnx2x_8073_set_pause_cl37(struct link_params *params,
7050 				      struct bnx2x_phy *phy,
7051 				      struct link_vars *vars)
7052 {
7053 	u16 cl37_val;
7054 	struct bnx2x *bp = params->bp;
7055 	bnx2x_cl45_read(bp, phy,
7056 			MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD, &cl37_val);
7057 
7058 	cl37_val &= ~MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH;
7059 	/* Please refer to Table 28B-3 of 802.3ab-1999 spec. */
7060 	bnx2x_calc_ieee_aneg_adv(phy, params, &vars->ieee_fc);
7061 	if ((vars->ieee_fc &
7062 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_SYMMETRIC) ==
7063 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_SYMMETRIC) {
7064 		cl37_val |=  MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_SYMMETRIC;
7065 	}
7066 	if ((vars->ieee_fc &
7067 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) ==
7068 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) {
7069 		cl37_val |=  MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC;
7070 	}
7071 	if ((vars->ieee_fc &
7072 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) ==
7073 	    MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) {
7074 		cl37_val |= MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH;
7075 	}
7076 	DP(NETIF_MSG_LINK,
7077 		 "Ext phy AN advertize cl37 0x%x\n", cl37_val);
7078 
7079 	bnx2x_cl45_write(bp, phy,
7080 			 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD, cl37_val);
7081 	msleep(500);
7082 }
7083 
bnx2x_8073_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)7084 static int bnx2x_8073_config_init(struct bnx2x_phy *phy,
7085 				  struct link_params *params,
7086 				  struct link_vars *vars)
7087 {
7088 	struct bnx2x *bp = params->bp;
7089 	u16 val = 0, tmp1;
7090 	u8 gpio_port;
7091 	DP(NETIF_MSG_LINK, "Init 8073\n");
7092 
7093 	if (CHIP_IS_E2(bp))
7094 		gpio_port = BP_PATH(bp);
7095 	else
7096 		gpio_port = params->port;
7097 	/* Restore normal power mode*/
7098 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
7099 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, gpio_port);
7100 
7101 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1,
7102 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, gpio_port);
7103 
7104 	/* enable LASI */
7105 	bnx2x_cl45_write(bp, phy,
7106 			 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL, (1<<2));
7107 	bnx2x_cl45_write(bp, phy,
7108 			 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL,  0x0004);
7109 
7110 	bnx2x_8073_set_pause_cl37(params, phy, vars);
7111 
7112 	bnx2x_cl45_read(bp, phy,
7113 			MDIO_PMA_DEVAD, MDIO_PMA_REG_M8051_MSGOUT_REG, &tmp1);
7114 
7115 	bnx2x_cl45_read(bp, phy,
7116 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT, &tmp1);
7117 
7118 	DP(NETIF_MSG_LINK, "Before rom RX_ALARM(port1): 0x%x\n", tmp1);
7119 
7120 	/* Swap polarity if required - Must be done only in non-1G mode */
7121 	if (params->lane_config & PORT_HW_CFG_SWAP_PHY_POLARITY_ENABLED) {
7122 		/* Configure the 8073 to swap _P and _N of the KR lines */
7123 		DP(NETIF_MSG_LINK, "Swapping polarity for the 8073\n");
7124 		/* 10G Rx/Tx and 1G Tx signal polarity swap */
7125 		bnx2x_cl45_read(bp, phy,
7126 				MDIO_PMA_DEVAD,
7127 				MDIO_PMA_REG_8073_OPT_DIGITAL_CTRL, &val);
7128 		bnx2x_cl45_write(bp, phy,
7129 				 MDIO_PMA_DEVAD,
7130 				 MDIO_PMA_REG_8073_OPT_DIGITAL_CTRL,
7131 				 (val | (3<<9)));
7132 	}
7133 
7134 
7135 	/* Enable CL37 BAM */
7136 	if (REG_RD(bp, params->shmem_base +
7137 			 offsetof(struct shmem_region, dev_info.
7138 				  port_hw_config[params->port].default_cfg)) &
7139 	    PORT_HW_CFG_ENABLE_BAM_ON_KR_ENABLED) {
7140 
7141 		bnx2x_cl45_read(bp, phy,
7142 				MDIO_AN_DEVAD,
7143 				MDIO_AN_REG_8073_BAM, &val);
7144 		bnx2x_cl45_write(bp, phy,
7145 				 MDIO_AN_DEVAD,
7146 				 MDIO_AN_REG_8073_BAM, val | 1);
7147 		DP(NETIF_MSG_LINK, "Enable CL37 BAM on KR\n");
7148 	}
7149 	if (params->loopback_mode == LOOPBACK_EXT) {
7150 		bnx2x_807x_force_10G(bp, phy);
7151 		DP(NETIF_MSG_LINK, "Forced speed 10G on 807X\n");
7152 		return 0;
7153 	} else {
7154 		bnx2x_cl45_write(bp, phy,
7155 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_BCM_CTRL, 0x0002);
7156 	}
7157 	if (phy->req_line_speed != SPEED_AUTO_NEG) {
7158 		if (phy->req_line_speed == SPEED_10000) {
7159 			val = (1<<7);
7160 		} else if (phy->req_line_speed ==  SPEED_2500) {
7161 			val = (1<<5);
7162 			/*
7163 			 * Note that 2.5G works only when used with 1G
7164 			 * advertisement
7165 			 */
7166 		} else
7167 			val = (1<<5);
7168 	} else {
7169 		val = 0;
7170 		if (phy->speed_cap_mask &
7171 			PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)
7172 			val |= (1<<7);
7173 
7174 		/* Note that 2.5G works only when used with 1G advertisement */
7175 		if (phy->speed_cap_mask &
7176 			(PORT_HW_CFG_SPEED_CAPABILITY_D0_1G |
7177 			 PORT_HW_CFG_SPEED_CAPABILITY_D0_2_5G))
7178 			val |= (1<<5);
7179 		DP(NETIF_MSG_LINK, "807x autoneg val = 0x%x\n", val);
7180 	}
7181 
7182 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV, val);
7183 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_8073_2_5G, &tmp1);
7184 
7185 	if (((phy->speed_cap_mask & PORT_HW_CFG_SPEED_CAPABILITY_D0_2_5G) &&
7186 	     (phy->req_line_speed == SPEED_AUTO_NEG)) ||
7187 	    (phy->req_line_speed == SPEED_2500)) {
7188 		u16 phy_ver;
7189 		/* Allow 2.5G for A1 and above */
7190 		bnx2x_cl45_read(bp, phy,
7191 				MDIO_PMA_DEVAD, MDIO_PMA_REG_8073_CHIP_REV,
7192 				&phy_ver);
7193 		DP(NETIF_MSG_LINK, "Add 2.5G\n");
7194 		if (phy_ver > 0)
7195 			tmp1 |= 1;
7196 		else
7197 			tmp1 &= 0xfffe;
7198 	} else {
7199 		DP(NETIF_MSG_LINK, "Disable 2.5G\n");
7200 		tmp1 &= 0xfffe;
7201 	}
7202 
7203 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_8073_2_5G, tmp1);
7204 	/* Add support for CL37 (passive mode) II */
7205 
7206 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD, &tmp1);
7207 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD,
7208 			 (tmp1 | ((phy->req_duplex == DUPLEX_FULL) ?
7209 				  0x20 : 0x40)));
7210 
7211 	/* Add support for CL37 (passive mode) III */
7212 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x1000);
7213 
7214 	/*
7215 	 * The SNR will improve about 2db by changing BW and FEE main
7216 	 * tap. Rest commands are executed after link is up
7217 	 * Change FFE main cursor to 5 in EDC register
7218 	 */
7219 	if (bnx2x_8073_is_snr_needed(bp, phy))
7220 		bnx2x_cl45_write(bp, phy,
7221 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_EDC_FFE_MAIN,
7222 				 0xFB0C);
7223 
7224 	/* Enable FEC (Forware Error Correction) Request in the AN */
7225 	bnx2x_cl45_read(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV2, &tmp1);
7226 	tmp1 |= (1<<15);
7227 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_ADV2, tmp1);
7228 
7229 	bnx2x_ext_phy_set_pause(params, phy, vars);
7230 
7231 	/* Restart autoneg */
7232 	msleep(500);
7233 	bnx2x_cl45_write(bp, phy, MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x1200);
7234 	DP(NETIF_MSG_LINK, "807x Autoneg Restart: Advertise 1G=%x, 10G=%x\n",
7235 		   ((val & (1<<5)) > 0), ((val & (1<<7)) > 0));
7236 	return 0;
7237 }
7238 
bnx2x_8073_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)7239 static u8 bnx2x_8073_read_status(struct bnx2x_phy *phy,
7240 				 struct link_params *params,
7241 				 struct link_vars *vars)
7242 {
7243 	struct bnx2x *bp = params->bp;
7244 	u8 link_up = 0;
7245 	u16 val1, val2;
7246 	u16 link_status = 0;
7247 	u16 an1000_status = 0;
7248 
7249 	bnx2x_cl45_read(bp, phy,
7250 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val1);
7251 
7252 	DP(NETIF_MSG_LINK, "8703 LASI status 0x%x\n", val1);
7253 
7254 	/* clear the interrupt LASI status register */
7255 	bnx2x_cl45_read(bp, phy,
7256 			MDIO_PCS_DEVAD, MDIO_PCS_REG_STATUS, &val2);
7257 	bnx2x_cl45_read(bp, phy,
7258 			MDIO_PCS_DEVAD, MDIO_PCS_REG_STATUS, &val1);
7259 	DP(NETIF_MSG_LINK, "807x PCS status 0x%x->0x%x\n", val2, val1);
7260 	/* Clear MSG-OUT */
7261 	bnx2x_cl45_read(bp, phy,
7262 			MDIO_PMA_DEVAD, MDIO_PMA_REG_M8051_MSGOUT_REG, &val1);
7263 
7264 	/* Check the LASI */
7265 	bnx2x_cl45_read(bp, phy,
7266 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT, &val2);
7267 
7268 	DP(NETIF_MSG_LINK, "KR 0x9003 0x%x\n", val2);
7269 
7270 	/* Check the link status */
7271 	bnx2x_cl45_read(bp, phy,
7272 			MDIO_PCS_DEVAD, MDIO_PCS_REG_STATUS, &val2);
7273 	DP(NETIF_MSG_LINK, "KR PCS status 0x%x\n", val2);
7274 
7275 	bnx2x_cl45_read(bp, phy,
7276 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val2);
7277 	bnx2x_cl45_read(bp, phy,
7278 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val1);
7279 	link_up = ((val1 & 4) == 4);
7280 	DP(NETIF_MSG_LINK, "PMA_REG_STATUS=0x%x\n", val1);
7281 
7282 	if (link_up &&
7283 	     ((phy->req_line_speed != SPEED_10000))) {
7284 		if (bnx2x_8073_xaui_wa(bp, phy) != 0)
7285 			return 0;
7286 	}
7287 	bnx2x_cl45_read(bp, phy,
7288 			MDIO_AN_DEVAD, MDIO_AN_REG_LINK_STATUS, &an1000_status);
7289 	bnx2x_cl45_read(bp, phy,
7290 			MDIO_AN_DEVAD, MDIO_AN_REG_LINK_STATUS, &an1000_status);
7291 
7292 	/* Check the link status on 1.1.2 */
7293 	bnx2x_cl45_read(bp, phy,
7294 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val2);
7295 	bnx2x_cl45_read(bp, phy,
7296 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val1);
7297 	DP(NETIF_MSG_LINK, "KR PMA status 0x%x->0x%x,"
7298 		   "an_link_status=0x%x\n", val2, val1, an1000_status);
7299 
7300 	link_up = (((val1 & 4) == 4) || (an1000_status & (1<<1)));
7301 	if (link_up && bnx2x_8073_is_snr_needed(bp, phy)) {
7302 		/*
7303 		 * The SNR will improve about 2dbby changing the BW and FEE main
7304 		 * tap. The 1st write to change FFE main tap is set before
7305 		 * restart AN. Change PLL Bandwidth in EDC register
7306 		 */
7307 		bnx2x_cl45_write(bp, phy,
7308 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_PLL_BANDWIDTH,
7309 				 0x26BC);
7310 
7311 		/* Change CDR Bandwidth in EDC register */
7312 		bnx2x_cl45_write(bp, phy,
7313 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CDR_BANDWIDTH,
7314 				 0x0333);
7315 	}
7316 	bnx2x_cl45_read(bp, phy,
7317 			MDIO_PMA_DEVAD, MDIO_PMA_REG_8073_SPEED_LINK_STATUS,
7318 			&link_status);
7319 
7320 	/* Bits 0..2 --> speed detected, bits 13..15--> link is down */
7321 	if ((link_status & (1<<2)) && (!(link_status & (1<<15)))) {
7322 		link_up = 1;
7323 		vars->line_speed = SPEED_10000;
7324 		DP(NETIF_MSG_LINK, "port %x: External link up in 10G\n",
7325 			   params->port);
7326 	} else if ((link_status & (1<<1)) && (!(link_status & (1<<14)))) {
7327 		link_up = 1;
7328 		vars->line_speed = SPEED_2500;
7329 		DP(NETIF_MSG_LINK, "port %x: External link up in 2.5G\n",
7330 			   params->port);
7331 	} else if ((link_status & (1<<0)) && (!(link_status & (1<<13)))) {
7332 		link_up = 1;
7333 		vars->line_speed = SPEED_1000;
7334 		DP(NETIF_MSG_LINK, "port %x: External link up in 1G\n",
7335 			   params->port);
7336 	} else {
7337 		link_up = 0;
7338 		DP(NETIF_MSG_LINK, "port %x: External link is down\n",
7339 			   params->port);
7340 	}
7341 
7342 	if (link_up) {
7343 		/* Swap polarity if required */
7344 		if (params->lane_config &
7345 		    PORT_HW_CFG_SWAP_PHY_POLARITY_ENABLED) {
7346 			/* Configure the 8073 to swap P and N of the KR lines */
7347 			bnx2x_cl45_read(bp, phy,
7348 					MDIO_XS_DEVAD,
7349 					MDIO_XS_REG_8073_RX_CTRL_PCIE, &val1);
7350 			/*
7351 			 * Set bit 3 to invert Rx in 1G mode and clear this bit
7352 			 * when it`s in 10G mode.
7353 			 */
7354 			if (vars->line_speed == SPEED_1000) {
7355 				DP(NETIF_MSG_LINK, "Swapping 1G polarity for"
7356 					      "the 8073\n");
7357 				val1 |= (1<<3);
7358 			} else
7359 				val1 &= ~(1<<3);
7360 
7361 			bnx2x_cl45_write(bp, phy,
7362 					 MDIO_XS_DEVAD,
7363 					 MDIO_XS_REG_8073_RX_CTRL_PCIE,
7364 					 val1);
7365 		}
7366 		bnx2x_ext_phy_10G_an_resolve(bp, phy, vars);
7367 		bnx2x_8073_resolve_fc(phy, params, vars);
7368 		vars->duplex = DUPLEX_FULL;
7369 	}
7370 	return link_up;
7371 }
7372 
bnx2x_8073_link_reset(struct bnx2x_phy * phy,struct link_params * params)7373 static void bnx2x_8073_link_reset(struct bnx2x_phy *phy,
7374 				  struct link_params *params)
7375 {
7376 	struct bnx2x *bp = params->bp;
7377 	u8 gpio_port;
7378 	if (CHIP_IS_E2(bp))
7379 		gpio_port = BP_PATH(bp);
7380 	else
7381 		gpio_port = params->port;
7382 	DP(NETIF_MSG_LINK, "Setting 8073 port %d into low power mode\n",
7383 	   gpio_port);
7384 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
7385 		       MISC_REGISTERS_GPIO_OUTPUT_LOW,
7386 		       gpio_port);
7387 }
7388 
7389 /******************************************************************/
7390 /*			BCM8705 PHY SECTION			  */
7391 /******************************************************************/
bnx2x_8705_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)7392 static int bnx2x_8705_config_init(struct bnx2x_phy *phy,
7393 				  struct link_params *params,
7394 				  struct link_vars *vars)
7395 {
7396 	struct bnx2x *bp = params->bp;
7397 	DP(NETIF_MSG_LINK, "init 8705\n");
7398 	/* Restore normal power mode*/
7399 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
7400 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, params->port);
7401 	/* HW reset */
7402 	bnx2x_ext_phy_hw_reset(bp, params->port);
7403 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0xa040);
7404 	bnx2x_wait_reset_complete(bp, phy, params);
7405 
7406 	bnx2x_cl45_write(bp, phy,
7407 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_MISC_CTRL, 0x8288);
7408 	bnx2x_cl45_write(bp, phy,
7409 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER, 0x7fbf);
7410 	bnx2x_cl45_write(bp, phy,
7411 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_CMU_PLL_BYPASS, 0x0100);
7412 	bnx2x_cl45_write(bp, phy,
7413 			 MDIO_WIS_DEVAD, MDIO_WIS_REG_LASI_CNTL, 0x1);
7414 	/* BCM8705 doesn't have microcode, hence the 0 */
7415 	bnx2x_save_spirom_version(bp, params->port, params->shmem_base, 0);
7416 	return 0;
7417 }
7418 
bnx2x_8705_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)7419 static u8 bnx2x_8705_read_status(struct bnx2x_phy *phy,
7420 				 struct link_params *params,
7421 				 struct link_vars *vars)
7422 {
7423 	u8 link_up = 0;
7424 	u16 val1, rx_sd;
7425 	struct bnx2x *bp = params->bp;
7426 	DP(NETIF_MSG_LINK, "read status 8705\n");
7427 	bnx2x_cl45_read(bp, phy,
7428 		      MDIO_WIS_DEVAD, MDIO_WIS_REG_LASI_STATUS, &val1);
7429 	DP(NETIF_MSG_LINK, "8705 LASI status 0x%x\n", val1);
7430 
7431 	bnx2x_cl45_read(bp, phy,
7432 		      MDIO_WIS_DEVAD, MDIO_WIS_REG_LASI_STATUS, &val1);
7433 	DP(NETIF_MSG_LINK, "8705 LASI status 0x%x\n", val1);
7434 
7435 	bnx2x_cl45_read(bp, phy,
7436 		      MDIO_PMA_DEVAD, MDIO_PMA_REG_RX_SD, &rx_sd);
7437 
7438 	bnx2x_cl45_read(bp, phy,
7439 		      MDIO_PMA_DEVAD, 0xc809, &val1);
7440 	bnx2x_cl45_read(bp, phy,
7441 		      MDIO_PMA_DEVAD, 0xc809, &val1);
7442 
7443 	DP(NETIF_MSG_LINK, "8705 1.c809 val=0x%x\n", val1);
7444 	link_up = ((rx_sd & 0x1) && (val1 & (1<<9)) && ((val1 & (1<<8)) == 0));
7445 	if (link_up) {
7446 		vars->line_speed = SPEED_10000;
7447 		bnx2x_ext_phy_resolve_fc(phy, params, vars);
7448 	}
7449 	return link_up;
7450 }
7451 
7452 /******************************************************************/
7453 /*			SFP+ module Section			  */
7454 /******************************************************************/
bnx2x_set_disable_pmd_transmit(struct link_params * params,struct bnx2x_phy * phy,u8 pmd_dis)7455 static void bnx2x_set_disable_pmd_transmit(struct link_params *params,
7456 					   struct bnx2x_phy *phy,
7457 					   u8 pmd_dis)
7458 {
7459 	struct bnx2x *bp = params->bp;
7460 	/*
7461 	 * Disable transmitter only for bootcodes which can enable it afterwards
7462 	 * (for D3 link)
7463 	 */
7464 	if (pmd_dis) {
7465 		if (params->feature_config_flags &
7466 		     FEATURE_CONFIG_BC_SUPPORTS_SFP_TX_DISABLED)
7467 			DP(NETIF_MSG_LINK, "Disabling PMD transmitter\n");
7468 		else {
7469 			DP(NETIF_MSG_LINK, "NOT disabling PMD transmitter\n");
7470 			return;
7471 		}
7472 	} else
7473 		DP(NETIF_MSG_LINK, "Enabling PMD transmitter\n");
7474 	bnx2x_cl45_write(bp, phy,
7475 			 MDIO_PMA_DEVAD,
7476 			 MDIO_PMA_REG_TX_DISABLE, pmd_dis);
7477 }
7478 
bnx2x_get_gpio_port(struct link_params * params)7479 static u8 bnx2x_get_gpio_port(struct link_params *params)
7480 {
7481 	u8 gpio_port;
7482 	u32 swap_val, swap_override;
7483 	struct bnx2x *bp = params->bp;
7484 	if (CHIP_IS_E2(bp))
7485 		gpio_port = BP_PATH(bp);
7486 	else
7487 		gpio_port = params->port;
7488 	swap_val = REG_RD(bp, NIG_REG_PORT_SWAP);
7489 	swap_override = REG_RD(bp, NIG_REG_STRAP_OVERRIDE);
7490 	return gpio_port ^ (swap_val && swap_override);
7491 }
7492 
bnx2x_sfp_e1e2_set_transmitter(struct link_params * params,struct bnx2x_phy * phy,u8 tx_en)7493 static void bnx2x_sfp_e1e2_set_transmitter(struct link_params *params,
7494 					   struct bnx2x_phy *phy,
7495 					   u8 tx_en)
7496 {
7497 	u16 val;
7498 	u8 port = params->port;
7499 	struct bnx2x *bp = params->bp;
7500 	u32 tx_en_mode;
7501 
7502 	/* Disable/Enable transmitter ( TX laser of the SFP+ module.)*/
7503 	tx_en_mode = REG_RD(bp, params->shmem_base +
7504 			    offsetof(struct shmem_region,
7505 				     dev_info.port_hw_config[port].sfp_ctrl)) &
7506 		PORT_HW_CFG_TX_LASER_MASK;
7507 	DP(NETIF_MSG_LINK, "Setting transmitter tx_en=%x for port %x "
7508 			   "mode = %x\n", tx_en, port, tx_en_mode);
7509 	switch (tx_en_mode) {
7510 	case PORT_HW_CFG_TX_LASER_MDIO:
7511 
7512 		bnx2x_cl45_read(bp, phy,
7513 				MDIO_PMA_DEVAD,
7514 				MDIO_PMA_REG_PHY_IDENTIFIER,
7515 				&val);
7516 
7517 		if (tx_en)
7518 			val &= ~(1<<15);
7519 		else
7520 			val |= (1<<15);
7521 
7522 		bnx2x_cl45_write(bp, phy,
7523 				 MDIO_PMA_DEVAD,
7524 				 MDIO_PMA_REG_PHY_IDENTIFIER,
7525 				 val);
7526 	break;
7527 	case PORT_HW_CFG_TX_LASER_GPIO0:
7528 	case PORT_HW_CFG_TX_LASER_GPIO1:
7529 	case PORT_HW_CFG_TX_LASER_GPIO2:
7530 	case PORT_HW_CFG_TX_LASER_GPIO3:
7531 	{
7532 		u16 gpio_pin;
7533 		u8 gpio_port, gpio_mode;
7534 		if (tx_en)
7535 			gpio_mode = MISC_REGISTERS_GPIO_OUTPUT_HIGH;
7536 		else
7537 			gpio_mode = MISC_REGISTERS_GPIO_OUTPUT_LOW;
7538 
7539 		gpio_pin = tx_en_mode - PORT_HW_CFG_TX_LASER_GPIO0;
7540 		gpio_port = bnx2x_get_gpio_port(params);
7541 		bnx2x_set_gpio(bp, gpio_pin, gpio_mode, gpio_port);
7542 		break;
7543 	}
7544 	default:
7545 		DP(NETIF_MSG_LINK, "Invalid TX_LASER_MDIO 0x%x\n", tx_en_mode);
7546 		break;
7547 	}
7548 }
7549 
bnx2x_sfp_set_transmitter(struct link_params * params,struct bnx2x_phy * phy,u8 tx_en)7550 static void bnx2x_sfp_set_transmitter(struct link_params *params,
7551 				      struct bnx2x_phy *phy,
7552 				      u8 tx_en)
7553 {
7554 	struct bnx2x *bp = params->bp;
7555 	DP(NETIF_MSG_LINK, "Setting SFP+ transmitter to %d\n", tx_en);
7556 	if (CHIP_IS_E3(bp))
7557 		bnx2x_sfp_e3_set_transmitter(params, phy, tx_en);
7558 	else
7559 		bnx2x_sfp_e1e2_set_transmitter(params, phy, tx_en);
7560 }
7561 
bnx2x_8726_read_sfp_module_eeprom(struct bnx2x_phy * phy,struct link_params * params,u16 addr,u8 byte_cnt,u8 * o_buf)7562 static int bnx2x_8726_read_sfp_module_eeprom(struct bnx2x_phy *phy,
7563 					     struct link_params *params,
7564 					     u16 addr, u8 byte_cnt, u8 *o_buf)
7565 {
7566 	struct bnx2x *bp = params->bp;
7567 	u16 val = 0;
7568 	u16 i;
7569 	if (byte_cnt > 16) {
7570 		DP(NETIF_MSG_LINK,
7571 		   "Reading from eeprom is limited to 0xf\n");
7572 		return -EINVAL;
7573 	}
7574 	/* Set the read command byte count */
7575 	bnx2x_cl45_write(bp, phy,
7576 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_SFP_TWO_WIRE_BYTE_CNT,
7577 			 (byte_cnt | 0xa000));
7578 
7579 	/* Set the read command address */
7580 	bnx2x_cl45_write(bp, phy,
7581 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_SFP_TWO_WIRE_MEM_ADDR,
7582 			 addr);
7583 
7584 	/* Activate read command */
7585 	bnx2x_cl45_write(bp, phy,
7586 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_SFP_TWO_WIRE_CTRL,
7587 			 0x2c0f);
7588 
7589 	/* Wait up to 500us for command complete status */
7590 	for (i = 0; i < 100; i++) {
7591 		bnx2x_cl45_read(bp, phy,
7592 				MDIO_PMA_DEVAD,
7593 				MDIO_PMA_REG_SFP_TWO_WIRE_CTRL, &val);
7594 		if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) ==
7595 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_COMPLETE)
7596 			break;
7597 		udelay(5);
7598 	}
7599 
7600 	if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) !=
7601 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_COMPLETE) {
7602 		DP(NETIF_MSG_LINK,
7603 			 "Got bad status 0x%x when reading from SFP+ EEPROM\n",
7604 			 (val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK));
7605 		return -EINVAL;
7606 	}
7607 
7608 	/* Read the buffer */
7609 	for (i = 0; i < byte_cnt; i++) {
7610 		bnx2x_cl45_read(bp, phy,
7611 				MDIO_PMA_DEVAD,
7612 				MDIO_PMA_REG_8726_TWO_WIRE_DATA_BUF + i, &val);
7613 		o_buf[i] = (u8)(val & MDIO_PMA_REG_8726_TWO_WIRE_DATA_MASK);
7614 	}
7615 
7616 	for (i = 0; i < 100; i++) {
7617 		bnx2x_cl45_read(bp, phy,
7618 				MDIO_PMA_DEVAD,
7619 				MDIO_PMA_REG_SFP_TWO_WIRE_CTRL, &val);
7620 		if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) ==
7621 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_IDLE)
7622 			return 0;
7623 		msleep(1);
7624 	}
7625 	return -EINVAL;
7626 }
7627 
bnx2x_warpcore_read_sfp_module_eeprom(struct bnx2x_phy * phy,struct link_params * params,u16 addr,u8 byte_cnt,u8 * o_buf)7628 static int bnx2x_warpcore_read_sfp_module_eeprom(struct bnx2x_phy *phy,
7629 						 struct link_params *params,
7630 						 u16 addr, u8 byte_cnt,
7631 						 u8 *o_buf)
7632 {
7633 	int rc = 0;
7634 	u8 i, j = 0, cnt = 0;
7635 	u32 data_array[4];
7636 	u16 addr32;
7637 	struct bnx2x *bp = params->bp;
7638 	/*DP(NETIF_MSG_LINK, "bnx2x_direct_read_sfp_module_eeprom:"
7639 					" addr %d, cnt %d\n",
7640 					addr, byte_cnt);*/
7641 	if (byte_cnt > 16) {
7642 		DP(NETIF_MSG_LINK,
7643 		   "Reading from eeprom is limited to 16 bytes\n");
7644 		return -EINVAL;
7645 	}
7646 
7647 	/* 4 byte aligned address */
7648 	addr32 = addr & (~0x3);
7649 	do {
7650 		rc = bnx2x_bsc_read(params, phy, 0xa0, addr32, 0, byte_cnt,
7651 				    data_array);
7652 	} while ((rc != 0) && (++cnt < I2C_WA_RETRY_CNT));
7653 
7654 	if (rc == 0) {
7655 		for (i = (addr - addr32); i < byte_cnt + (addr - addr32); i++) {
7656 			o_buf[j] = *((u8 *)data_array + i);
7657 			j++;
7658 		}
7659 	}
7660 
7661 	return rc;
7662 }
7663 
bnx2x_8727_read_sfp_module_eeprom(struct bnx2x_phy * phy,struct link_params * params,u16 addr,u8 byte_cnt,u8 * o_buf)7664 static int bnx2x_8727_read_sfp_module_eeprom(struct bnx2x_phy *phy,
7665 					     struct link_params *params,
7666 					     u16 addr, u8 byte_cnt, u8 *o_buf)
7667 {
7668 	struct bnx2x *bp = params->bp;
7669 	u16 val, i;
7670 
7671 	if (byte_cnt > 16) {
7672 		DP(NETIF_MSG_LINK,
7673 		   "Reading from eeprom is limited to 0xf\n");
7674 		return -EINVAL;
7675 	}
7676 
7677 	/* Need to read from 1.8000 to clear it */
7678 	bnx2x_cl45_read(bp, phy,
7679 			MDIO_PMA_DEVAD,
7680 			MDIO_PMA_REG_SFP_TWO_WIRE_CTRL,
7681 			&val);
7682 
7683 	/* Set the read command byte count */
7684 	bnx2x_cl45_write(bp, phy,
7685 			 MDIO_PMA_DEVAD,
7686 			 MDIO_PMA_REG_SFP_TWO_WIRE_BYTE_CNT,
7687 			 ((byte_cnt < 2) ? 2 : byte_cnt));
7688 
7689 	/* Set the read command address */
7690 	bnx2x_cl45_write(bp, phy,
7691 			 MDIO_PMA_DEVAD,
7692 			 MDIO_PMA_REG_SFP_TWO_WIRE_MEM_ADDR,
7693 			 addr);
7694 	/* Set the destination address */
7695 	bnx2x_cl45_write(bp, phy,
7696 			 MDIO_PMA_DEVAD,
7697 			 0x8004,
7698 			 MDIO_PMA_REG_8727_TWO_WIRE_DATA_BUF);
7699 
7700 	/* Activate read command */
7701 	bnx2x_cl45_write(bp, phy,
7702 			 MDIO_PMA_DEVAD,
7703 			 MDIO_PMA_REG_SFP_TWO_WIRE_CTRL,
7704 			 0x8002);
7705 	/*
7706 	 * Wait appropriate time for two-wire command to finish before
7707 	 * polling the status register
7708 	 */
7709 	msleep(1);
7710 
7711 	/* Wait up to 500us for command complete status */
7712 	for (i = 0; i < 100; i++) {
7713 		bnx2x_cl45_read(bp, phy,
7714 				MDIO_PMA_DEVAD,
7715 				MDIO_PMA_REG_SFP_TWO_WIRE_CTRL, &val);
7716 		if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) ==
7717 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_COMPLETE)
7718 			break;
7719 		udelay(5);
7720 	}
7721 
7722 	if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) !=
7723 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_COMPLETE) {
7724 		DP(NETIF_MSG_LINK,
7725 			 "Got bad status 0x%x when reading from SFP+ EEPROM\n",
7726 			 (val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK));
7727 		return -EFAULT;
7728 	}
7729 
7730 	/* Read the buffer */
7731 	for (i = 0; i < byte_cnt; i++) {
7732 		bnx2x_cl45_read(bp, phy,
7733 				MDIO_PMA_DEVAD,
7734 				MDIO_PMA_REG_8727_TWO_WIRE_DATA_BUF + i, &val);
7735 		o_buf[i] = (u8)(val & MDIO_PMA_REG_8727_TWO_WIRE_DATA_MASK);
7736 	}
7737 
7738 	for (i = 0; i < 100; i++) {
7739 		bnx2x_cl45_read(bp, phy,
7740 				MDIO_PMA_DEVAD,
7741 				MDIO_PMA_REG_SFP_TWO_WIRE_CTRL, &val);
7742 		if ((val & MDIO_PMA_REG_SFP_TWO_WIRE_CTRL_STATUS_MASK) ==
7743 		    MDIO_PMA_REG_SFP_TWO_WIRE_STATUS_IDLE)
7744 			return 0;
7745 		msleep(1);
7746 	}
7747 
7748 	return -EINVAL;
7749 }
7750 
bnx2x_read_sfp_module_eeprom(struct bnx2x_phy * phy,struct link_params * params,u16 addr,u8 byte_cnt,u8 * o_buf)7751 int bnx2x_read_sfp_module_eeprom(struct bnx2x_phy *phy,
7752 				 struct link_params *params, u16 addr,
7753 				 u8 byte_cnt, u8 *o_buf)
7754 {
7755 	int rc = -EINVAL;
7756 	switch (phy->type) {
7757 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726:
7758 		rc = bnx2x_8726_read_sfp_module_eeprom(phy, params, addr,
7759 						       byte_cnt, o_buf);
7760 	break;
7761 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
7762 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
7763 		rc = bnx2x_8727_read_sfp_module_eeprom(phy, params, addr,
7764 						       byte_cnt, o_buf);
7765 	break;
7766 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT:
7767 		rc = bnx2x_warpcore_read_sfp_module_eeprom(phy, params, addr,
7768 							   byte_cnt, o_buf);
7769 	break;
7770 	}
7771 	return rc;
7772 }
7773 
bnx2x_get_edc_mode(struct bnx2x_phy * phy,struct link_params * params,u16 * edc_mode)7774 static int bnx2x_get_edc_mode(struct bnx2x_phy *phy,
7775 			      struct link_params *params,
7776 			      u16 *edc_mode)
7777 {
7778 	struct bnx2x *bp = params->bp;
7779 	u32 sync_offset = 0, phy_idx, media_types;
7780 	u8 val, check_limiting_mode = 0;
7781 	*edc_mode = EDC_MODE_LIMITING;
7782 
7783 	phy->media_type = ETH_PHY_UNSPECIFIED;
7784 	/* First check for copper cable */
7785 	if (bnx2x_read_sfp_module_eeprom(phy,
7786 					 params,
7787 					 SFP_EEPROM_CON_TYPE_ADDR,
7788 					 1,
7789 					 &val) != 0) {
7790 		DP(NETIF_MSG_LINK, "Failed to read from SFP+ module EEPROM\n");
7791 		return -EINVAL;
7792 	}
7793 
7794 	switch (val) {
7795 	case SFP_EEPROM_CON_TYPE_VAL_COPPER:
7796 	{
7797 		u8 copper_module_type;
7798 		phy->media_type = ETH_PHY_DA_TWINAX;
7799 		/*
7800 		 * Check if its active cable (includes SFP+ module)
7801 		 * of passive cable
7802 		 */
7803 		if (bnx2x_read_sfp_module_eeprom(phy,
7804 					       params,
7805 					       SFP_EEPROM_FC_TX_TECH_ADDR,
7806 					       1,
7807 					       &copper_module_type) != 0) {
7808 			DP(NETIF_MSG_LINK,
7809 				"Failed to read copper-cable-type"
7810 				" from SFP+ EEPROM\n");
7811 			return -EINVAL;
7812 		}
7813 
7814 		if (copper_module_type &
7815 		    SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_ACTIVE) {
7816 			DP(NETIF_MSG_LINK, "Active Copper cable detected\n");
7817 			check_limiting_mode = 1;
7818 		} else if (copper_module_type &
7819 			SFP_EEPROM_FC_TX_TECH_BITMASK_COPPER_PASSIVE) {
7820 				DP(NETIF_MSG_LINK,
7821 				   "Passive Copper cable detected\n");
7822 				*edc_mode =
7823 				      EDC_MODE_PASSIVE_DAC;
7824 		} else {
7825 			DP(NETIF_MSG_LINK,
7826 			   "Unknown copper-cable-type 0x%x !!!\n",
7827 			   copper_module_type);
7828 			return -EINVAL;
7829 		}
7830 		break;
7831 	}
7832 	case SFP_EEPROM_CON_TYPE_VAL_LC:
7833 		phy->media_type = ETH_PHY_SFP_FIBER;
7834 		DP(NETIF_MSG_LINK, "Optic module detected\n");
7835 		check_limiting_mode = 1;
7836 		break;
7837 	default:
7838 		DP(NETIF_MSG_LINK, "Unable to determine module type 0x%x !!!\n",
7839 			 val);
7840 		return -EINVAL;
7841 	}
7842 	sync_offset = params->shmem_base +
7843 		offsetof(struct shmem_region,
7844 			 dev_info.port_hw_config[params->port].media_type);
7845 	media_types = REG_RD(bp, sync_offset);
7846 	/* Update media type for non-PMF sync */
7847 	for (phy_idx = INT_PHY; phy_idx < MAX_PHYS; phy_idx++) {
7848 		if (&(params->phy[phy_idx]) == phy) {
7849 			media_types &= ~(PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK <<
7850 				(PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT * phy_idx));
7851 			media_types |= ((phy->media_type &
7852 					PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK) <<
7853 				(PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT * phy_idx));
7854 			break;
7855 		}
7856 	}
7857 	REG_WR(bp, sync_offset, media_types);
7858 	if (check_limiting_mode) {
7859 		u8 options[SFP_EEPROM_OPTIONS_SIZE];
7860 		if (bnx2x_read_sfp_module_eeprom(phy,
7861 						 params,
7862 						 SFP_EEPROM_OPTIONS_ADDR,
7863 						 SFP_EEPROM_OPTIONS_SIZE,
7864 						 options) != 0) {
7865 			DP(NETIF_MSG_LINK,
7866 			   "Failed to read Option field from module EEPROM\n");
7867 			return -EINVAL;
7868 		}
7869 		if ((options[0] & SFP_EEPROM_OPTIONS_LINEAR_RX_OUT_MASK))
7870 			*edc_mode = EDC_MODE_LINEAR;
7871 		else
7872 			*edc_mode = EDC_MODE_LIMITING;
7873 	}
7874 	DP(NETIF_MSG_LINK, "EDC mode is set to 0x%x\n", *edc_mode);
7875 	return 0;
7876 }
7877 /*
7878  * This function read the relevant field from the module (SFP+), and verify it
7879  * is compliant with this board
7880  */
bnx2x_verify_sfp_module(struct bnx2x_phy * phy,struct link_params * params)7881 static int bnx2x_verify_sfp_module(struct bnx2x_phy *phy,
7882 				   struct link_params *params)
7883 {
7884 	struct bnx2x *bp = params->bp;
7885 	u32 val, cmd;
7886 	u32 fw_resp, fw_cmd_param;
7887 	char vendor_name[SFP_EEPROM_VENDOR_NAME_SIZE+1];
7888 	char vendor_pn[SFP_EEPROM_PART_NO_SIZE+1];
7889 	phy->flags &= ~FLAGS_SFP_NOT_APPROVED;
7890 	val = REG_RD(bp, params->shmem_base +
7891 			 offsetof(struct shmem_region, dev_info.
7892 				  port_feature_config[params->port].config));
7893 	if ((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) ==
7894 	    PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_NO_ENFORCEMENT) {
7895 		DP(NETIF_MSG_LINK, "NOT enforcing module verification\n");
7896 		return 0;
7897 	}
7898 
7899 	if (params->feature_config_flags &
7900 	    FEATURE_CONFIG_BC_SUPPORTS_DUAL_PHY_OPT_MDL_VRFY) {
7901 		/* Use specific phy request */
7902 		cmd = DRV_MSG_CODE_VRFY_SPECIFIC_PHY_OPT_MDL;
7903 	} else if (params->feature_config_flags &
7904 		   FEATURE_CONFIG_BC_SUPPORTS_OPT_MDL_VRFY) {
7905 		/* Use first phy request only in case of non-dual media*/
7906 		if (DUAL_MEDIA(params)) {
7907 			DP(NETIF_MSG_LINK,
7908 			   "FW does not support OPT MDL verification\n");
7909 			return -EINVAL;
7910 		}
7911 		cmd = DRV_MSG_CODE_VRFY_FIRST_PHY_OPT_MDL;
7912 	} else {
7913 		/* No support in OPT MDL detection */
7914 		DP(NETIF_MSG_LINK,
7915 		   "FW does not support OPT MDL verification\n");
7916 		return -EINVAL;
7917 	}
7918 
7919 	fw_cmd_param = FW_PARAM_SET(phy->addr, phy->type, phy->mdio_ctrl);
7920 	fw_resp = bnx2x_fw_command(bp, cmd, fw_cmd_param);
7921 	if (fw_resp == FW_MSG_CODE_VRFY_OPT_MDL_SUCCESS) {
7922 		DP(NETIF_MSG_LINK, "Approved module\n");
7923 		return 0;
7924 	}
7925 
7926 	/* format the warning message */
7927 	if (bnx2x_read_sfp_module_eeprom(phy,
7928 					 params,
7929 					 SFP_EEPROM_VENDOR_NAME_ADDR,
7930 					 SFP_EEPROM_VENDOR_NAME_SIZE,
7931 					 (u8 *)vendor_name))
7932 		vendor_name[0] = '\0';
7933 	else
7934 		vendor_name[SFP_EEPROM_VENDOR_NAME_SIZE] = '\0';
7935 	if (bnx2x_read_sfp_module_eeprom(phy,
7936 					 params,
7937 					 SFP_EEPROM_PART_NO_ADDR,
7938 					 SFP_EEPROM_PART_NO_SIZE,
7939 					 (u8 *)vendor_pn))
7940 		vendor_pn[0] = '\0';
7941 	else
7942 		vendor_pn[SFP_EEPROM_PART_NO_SIZE] = '\0';
7943 
7944 	netdev_err(bp->dev,  "Warning: Unqualified SFP+ module detected,"
7945 			      " Port %d from %s part number %s\n",
7946 			 params->port, vendor_name, vendor_pn);
7947 	phy->flags |= FLAGS_SFP_NOT_APPROVED;
7948 	return -EINVAL;
7949 }
7950 
bnx2x_wait_for_sfp_module_initialized(struct bnx2x_phy * phy,struct link_params * params)7951 static int bnx2x_wait_for_sfp_module_initialized(struct bnx2x_phy *phy,
7952 						 struct link_params *params)
7953 
7954 {
7955 	u8 val;
7956 	struct bnx2x *bp = params->bp;
7957 	u16 timeout;
7958 	/*
7959 	 * Initialization time after hot-plug may take up to 300ms for
7960 	 * some phys type ( e.g. JDSU )
7961 	 */
7962 
7963 	for (timeout = 0; timeout < 60; timeout++) {
7964 		if (bnx2x_read_sfp_module_eeprom(phy, params, 1, 1, &val)
7965 		    == 0) {
7966 			DP(NETIF_MSG_LINK,
7967 			   "SFP+ module initialization took %d ms\n",
7968 			   timeout * 5);
7969 			return 0;
7970 		}
7971 		msleep(5);
7972 	}
7973 	return -EINVAL;
7974 }
7975 
bnx2x_8727_power_module(struct bnx2x * bp,struct bnx2x_phy * phy,u8 is_power_up)7976 static void bnx2x_8727_power_module(struct bnx2x *bp,
7977 				    struct bnx2x_phy *phy,
7978 				    u8 is_power_up) {
7979 	/* Make sure GPIOs are not using for LED mode */
7980 	u16 val;
7981 	/*
7982 	 * In the GPIO register, bit 4 is use to determine if the GPIOs are
7983 	 * operating as INPUT or as OUTPUT. Bit 1 is for input, and 0 for
7984 	 * output
7985 	 * Bits 0-1 determine the GPIOs value for OUTPUT in case bit 4 val is 0
7986 	 * Bits 8-9 determine the GPIOs value for INPUT in case bit 4 val is 1
7987 	 * where the 1st bit is the over-current(only input), and 2nd bit is
7988 	 * for power( only output )
7989 	 *
7990 	 * In case of NOC feature is disabled and power is up, set GPIO control
7991 	 *  as input to enable listening of over-current indication
7992 	 */
7993 	if (phy->flags & FLAGS_NOC)
7994 		return;
7995 	if (is_power_up)
7996 		val = (1<<4);
7997 	else
7998 		/*
7999 		 * Set GPIO control to OUTPUT, and set the power bit
8000 		 * to according to the is_power_up
8001 		 */
8002 		val = (1<<1);
8003 
8004 	bnx2x_cl45_write(bp, phy,
8005 			 MDIO_PMA_DEVAD,
8006 			 MDIO_PMA_REG_8727_GPIO_CTRL,
8007 			 val);
8008 }
8009 
bnx2x_8726_set_limiting_mode(struct bnx2x * bp,struct bnx2x_phy * phy,u16 edc_mode)8010 static int bnx2x_8726_set_limiting_mode(struct bnx2x *bp,
8011 					struct bnx2x_phy *phy,
8012 					u16 edc_mode)
8013 {
8014 	u16 cur_limiting_mode;
8015 
8016 	bnx2x_cl45_read(bp, phy,
8017 			MDIO_PMA_DEVAD,
8018 			MDIO_PMA_REG_ROM_VER2,
8019 			&cur_limiting_mode);
8020 	DP(NETIF_MSG_LINK, "Current Limiting mode is 0x%x\n",
8021 		 cur_limiting_mode);
8022 
8023 	if (edc_mode == EDC_MODE_LIMITING) {
8024 		DP(NETIF_MSG_LINK, "Setting LIMITING MODE\n");
8025 		bnx2x_cl45_write(bp, phy,
8026 				 MDIO_PMA_DEVAD,
8027 				 MDIO_PMA_REG_ROM_VER2,
8028 				 EDC_MODE_LIMITING);
8029 	} else { /* LRM mode ( default )*/
8030 
8031 		DP(NETIF_MSG_LINK, "Setting LRM MODE\n");
8032 
8033 		/*
8034 		 * Changing to LRM mode takes quite few seconds. So do it only
8035 		 * if current mode is limiting (default is LRM)
8036 		 */
8037 		if (cur_limiting_mode != EDC_MODE_LIMITING)
8038 			return 0;
8039 
8040 		bnx2x_cl45_write(bp, phy,
8041 				 MDIO_PMA_DEVAD,
8042 				 MDIO_PMA_REG_LRM_MODE,
8043 				 0);
8044 		bnx2x_cl45_write(bp, phy,
8045 				 MDIO_PMA_DEVAD,
8046 				 MDIO_PMA_REG_ROM_VER2,
8047 				 0x128);
8048 		bnx2x_cl45_write(bp, phy,
8049 				 MDIO_PMA_DEVAD,
8050 				 MDIO_PMA_REG_MISC_CTRL0,
8051 				 0x4008);
8052 		bnx2x_cl45_write(bp, phy,
8053 				 MDIO_PMA_DEVAD,
8054 				 MDIO_PMA_REG_LRM_MODE,
8055 				 0xaaaa);
8056 	}
8057 	return 0;
8058 }
8059 
bnx2x_8727_set_limiting_mode(struct bnx2x * bp,struct bnx2x_phy * phy,u16 edc_mode)8060 static int bnx2x_8727_set_limiting_mode(struct bnx2x *bp,
8061 					struct bnx2x_phy *phy,
8062 					u16 edc_mode)
8063 {
8064 	u16 phy_identifier;
8065 	u16 rom_ver2_val;
8066 	bnx2x_cl45_read(bp, phy,
8067 			MDIO_PMA_DEVAD,
8068 			MDIO_PMA_REG_PHY_IDENTIFIER,
8069 			&phy_identifier);
8070 
8071 	bnx2x_cl45_write(bp, phy,
8072 			 MDIO_PMA_DEVAD,
8073 			 MDIO_PMA_REG_PHY_IDENTIFIER,
8074 			 (phy_identifier & ~(1<<9)));
8075 
8076 	bnx2x_cl45_read(bp, phy,
8077 			MDIO_PMA_DEVAD,
8078 			MDIO_PMA_REG_ROM_VER2,
8079 			&rom_ver2_val);
8080 	/* Keep the MSB 8-bits, and set the LSB 8-bits with the edc_mode */
8081 	bnx2x_cl45_write(bp, phy,
8082 			 MDIO_PMA_DEVAD,
8083 			 MDIO_PMA_REG_ROM_VER2,
8084 			 (rom_ver2_val & 0xff00) | (edc_mode & 0x00ff));
8085 
8086 	bnx2x_cl45_write(bp, phy,
8087 			 MDIO_PMA_DEVAD,
8088 			 MDIO_PMA_REG_PHY_IDENTIFIER,
8089 			 (phy_identifier | (1<<9)));
8090 
8091 	return 0;
8092 }
8093 
bnx2x_8727_specific_func(struct bnx2x_phy * phy,struct link_params * params,u32 action)8094 static void bnx2x_8727_specific_func(struct bnx2x_phy *phy,
8095 				     struct link_params *params,
8096 				     u32 action)
8097 {
8098 	struct bnx2x *bp = params->bp;
8099 
8100 	switch (action) {
8101 	case DISABLE_TX:
8102 		bnx2x_sfp_set_transmitter(params, phy, 0);
8103 		break;
8104 	case ENABLE_TX:
8105 		if (!(phy->flags & FLAGS_SFP_NOT_APPROVED))
8106 			bnx2x_sfp_set_transmitter(params, phy, 1);
8107 		break;
8108 	default:
8109 		DP(NETIF_MSG_LINK, "Function 0x%x not supported by 8727\n",
8110 		   action);
8111 		return;
8112 	}
8113 }
8114 
bnx2x_set_e1e2_module_fault_led(struct link_params * params,u8 gpio_mode)8115 static void bnx2x_set_e1e2_module_fault_led(struct link_params *params,
8116 					   u8 gpio_mode)
8117 {
8118 	struct bnx2x *bp = params->bp;
8119 
8120 	u32 fault_led_gpio = REG_RD(bp, params->shmem_base +
8121 			    offsetof(struct shmem_region,
8122 			dev_info.port_hw_config[params->port].sfp_ctrl)) &
8123 		PORT_HW_CFG_FAULT_MODULE_LED_MASK;
8124 	switch (fault_led_gpio) {
8125 	case PORT_HW_CFG_FAULT_MODULE_LED_DISABLED:
8126 		return;
8127 	case PORT_HW_CFG_FAULT_MODULE_LED_GPIO0:
8128 	case PORT_HW_CFG_FAULT_MODULE_LED_GPIO1:
8129 	case PORT_HW_CFG_FAULT_MODULE_LED_GPIO2:
8130 	case PORT_HW_CFG_FAULT_MODULE_LED_GPIO3:
8131 	{
8132 		u8 gpio_port = bnx2x_get_gpio_port(params);
8133 		u16 gpio_pin = fault_led_gpio -
8134 			PORT_HW_CFG_FAULT_MODULE_LED_GPIO0;
8135 		DP(NETIF_MSG_LINK, "Set fault module-detected led "
8136 				   "pin %x port %x mode %x\n",
8137 			       gpio_pin, gpio_port, gpio_mode);
8138 		bnx2x_set_gpio(bp, gpio_pin, gpio_mode, gpio_port);
8139 	}
8140 	break;
8141 	default:
8142 		DP(NETIF_MSG_LINK, "Error: Invalid fault led mode 0x%x\n",
8143 			       fault_led_gpio);
8144 	}
8145 }
8146 
bnx2x_set_e3_module_fault_led(struct link_params * params,u8 gpio_mode)8147 static void bnx2x_set_e3_module_fault_led(struct link_params *params,
8148 					  u8 gpio_mode)
8149 {
8150 	u32 pin_cfg;
8151 	u8 port = params->port;
8152 	struct bnx2x *bp = params->bp;
8153 	pin_cfg = (REG_RD(bp, params->shmem_base +
8154 			 offsetof(struct shmem_region,
8155 				  dev_info.port_hw_config[port].e3_sfp_ctrl)) &
8156 		PORT_HW_CFG_E3_FAULT_MDL_LED_MASK) >>
8157 		PORT_HW_CFG_E3_FAULT_MDL_LED_SHIFT;
8158 	DP(NETIF_MSG_LINK, "Setting Fault LED to %d using pin cfg %d\n",
8159 		       gpio_mode, pin_cfg);
8160 	bnx2x_set_cfg_pin(bp, pin_cfg, gpio_mode);
8161 }
8162 
bnx2x_set_sfp_module_fault_led(struct link_params * params,u8 gpio_mode)8163 static void bnx2x_set_sfp_module_fault_led(struct link_params *params,
8164 					   u8 gpio_mode)
8165 {
8166 	struct bnx2x *bp = params->bp;
8167 	DP(NETIF_MSG_LINK, "Setting SFP+ module fault LED to %d\n", gpio_mode);
8168 	if (CHIP_IS_E3(bp)) {
8169 		/*
8170 		 * Low ==> if SFP+ module is supported otherwise
8171 		 * High ==> if SFP+ module is not on the approved vendor list
8172 		 */
8173 		bnx2x_set_e3_module_fault_led(params, gpio_mode);
8174 	} else
8175 		bnx2x_set_e1e2_module_fault_led(params, gpio_mode);
8176 }
8177 
bnx2x_warpcore_power_module(struct link_params * params,struct bnx2x_phy * phy,u8 power)8178 static void bnx2x_warpcore_power_module(struct link_params *params,
8179 					struct bnx2x_phy *phy,
8180 					u8 power)
8181 {
8182 	u32 pin_cfg;
8183 	struct bnx2x *bp = params->bp;
8184 
8185 	pin_cfg = (REG_RD(bp, params->shmem_base +
8186 			  offsetof(struct shmem_region,
8187 			dev_info.port_hw_config[params->port].e3_sfp_ctrl)) &
8188 			PORT_HW_CFG_E3_PWR_DIS_MASK) >>
8189 			PORT_HW_CFG_E3_PWR_DIS_SHIFT;
8190 
8191 	if (pin_cfg == PIN_CFG_NA)
8192 		return;
8193 	DP(NETIF_MSG_LINK, "Setting SFP+ module power to %d using pin cfg %d\n",
8194 		       power, pin_cfg);
8195 	/*
8196 	 * Low ==> corresponding SFP+ module is powered
8197 	 * high ==> the SFP+ module is powered down
8198 	 */
8199 	bnx2x_set_cfg_pin(bp, pin_cfg, power ^ 1);
8200 }
8201 
bnx2x_warpcore_hw_reset(struct bnx2x_phy * phy,struct link_params * params)8202 static void bnx2x_warpcore_hw_reset(struct bnx2x_phy *phy,
8203 				    struct link_params *params)
8204 {
8205 	struct bnx2x *bp = params->bp;
8206 	bnx2x_warpcore_power_module(params, phy, 0);
8207 	/* Put Warpcore in low power mode */
8208 	REG_WR(bp, MISC_REG_WC0_RESET, 0x0c0e);
8209 
8210 	/* Put LCPLL in low power mode */
8211 	REG_WR(bp, MISC_REG_LCPLL_E40_PWRDWN, 1);
8212 	REG_WR(bp, MISC_REG_LCPLL_E40_RESETB_ANA, 0);
8213 	REG_WR(bp, MISC_REG_LCPLL_E40_RESETB_DIG, 0);
8214 }
8215 
bnx2x_power_sfp_module(struct link_params * params,struct bnx2x_phy * phy,u8 power)8216 static void bnx2x_power_sfp_module(struct link_params *params,
8217 				   struct bnx2x_phy *phy,
8218 				   u8 power)
8219 {
8220 	struct bnx2x *bp = params->bp;
8221 	DP(NETIF_MSG_LINK, "Setting SFP+ power to %x\n", power);
8222 
8223 	switch (phy->type) {
8224 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
8225 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
8226 		bnx2x_8727_power_module(params->bp, phy, power);
8227 		break;
8228 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT:
8229 		bnx2x_warpcore_power_module(params, phy, power);
8230 		break;
8231 	default:
8232 		break;
8233 	}
8234 }
bnx2x_warpcore_set_limiting_mode(struct link_params * params,struct bnx2x_phy * phy,u16 edc_mode)8235 static void bnx2x_warpcore_set_limiting_mode(struct link_params *params,
8236 					     struct bnx2x_phy *phy,
8237 					     u16 edc_mode)
8238 {
8239 	u16 val = 0;
8240 	u16 mode = MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE_DEFAULT;
8241 	struct bnx2x *bp = params->bp;
8242 
8243 	u8 lane = bnx2x_get_warpcore_lane(phy, params);
8244 	/* This is a global register which controls all lanes */
8245 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
8246 			MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE, &val);
8247 	val &= ~(0xf << (lane << 2));
8248 
8249 	switch (edc_mode) {
8250 	case EDC_MODE_LINEAR:
8251 	case EDC_MODE_LIMITING:
8252 		mode = MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE_DEFAULT;
8253 		break;
8254 	case EDC_MODE_PASSIVE_DAC:
8255 		mode = MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE_SFP_DAC;
8256 		break;
8257 	default:
8258 		break;
8259 	}
8260 
8261 	val |= (mode << (lane << 2));
8262 	bnx2x_cl45_write(bp, phy, MDIO_WC_DEVAD,
8263 			 MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE, val);
8264 	/* A must read */
8265 	bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
8266 			MDIO_WC_REG_UC_INFO_B1_FIRMWARE_MODE, &val);
8267 
8268 	/* Restart microcode to re-read the new mode */
8269 	bnx2x_warpcore_reset_lane(bp, phy, 1);
8270 	bnx2x_warpcore_reset_lane(bp, phy, 0);
8271 
8272 }
8273 
bnx2x_set_limiting_mode(struct link_params * params,struct bnx2x_phy * phy,u16 edc_mode)8274 static void bnx2x_set_limiting_mode(struct link_params *params,
8275 				    struct bnx2x_phy *phy,
8276 				    u16 edc_mode)
8277 {
8278 	switch (phy->type) {
8279 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726:
8280 		bnx2x_8726_set_limiting_mode(params->bp, phy, edc_mode);
8281 		break;
8282 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
8283 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
8284 		bnx2x_8727_set_limiting_mode(params->bp, phy, edc_mode);
8285 		break;
8286 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT:
8287 		bnx2x_warpcore_set_limiting_mode(params, phy, edc_mode);
8288 		break;
8289 	}
8290 }
8291 
bnx2x_sfp_module_detection(struct bnx2x_phy * phy,struct link_params * params)8292 int bnx2x_sfp_module_detection(struct bnx2x_phy *phy,
8293 			       struct link_params *params)
8294 {
8295 	struct bnx2x *bp = params->bp;
8296 	u16 edc_mode;
8297 	int rc = 0;
8298 
8299 	u32 val = REG_RD(bp, params->shmem_base +
8300 			     offsetof(struct shmem_region, dev_info.
8301 				     port_feature_config[params->port].config));
8302 
8303 	DP(NETIF_MSG_LINK, "SFP+ module plugged in/out detected on port %d\n",
8304 		 params->port);
8305 	/* Power up module */
8306 	bnx2x_power_sfp_module(params, phy, 1);
8307 	if (bnx2x_get_edc_mode(phy, params, &edc_mode) != 0) {
8308 		DP(NETIF_MSG_LINK, "Failed to get valid module type\n");
8309 		return -EINVAL;
8310 	} else if (bnx2x_verify_sfp_module(phy, params) != 0) {
8311 		/* check SFP+ module compatibility */
8312 		DP(NETIF_MSG_LINK, "Module verification failed!!\n");
8313 		rc = -EINVAL;
8314 		/* Turn on fault module-detected led */
8315 		bnx2x_set_sfp_module_fault_led(params,
8316 					       MISC_REGISTERS_GPIO_HIGH);
8317 
8318 		/* Check if need to power down the SFP+ module */
8319 		if ((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) ==
8320 		     PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_POWER_DOWN) {
8321 			DP(NETIF_MSG_LINK, "Shutdown SFP+ module!!\n");
8322 			bnx2x_power_sfp_module(params, phy, 0);
8323 			return rc;
8324 		}
8325 	} else {
8326 		/* Turn off fault module-detected led */
8327 		bnx2x_set_sfp_module_fault_led(params, MISC_REGISTERS_GPIO_LOW);
8328 	}
8329 
8330 	/*
8331 	 * Check and set limiting mode / LRM mode on 8726. On 8727 it
8332 	 * is done automatically
8333 	 */
8334 	bnx2x_set_limiting_mode(params, phy, edc_mode);
8335 
8336 	/*
8337 	 * Enable transmit for this module if the module is approved, or
8338 	 * if unapproved modules should also enable the Tx laser
8339 	 */
8340 	if (rc == 0 ||
8341 	    (val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) !=
8342 	    PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_DISABLE_TX_LASER)
8343 		bnx2x_sfp_set_transmitter(params, phy, 1);
8344 	else
8345 		bnx2x_sfp_set_transmitter(params, phy, 0);
8346 
8347 	return rc;
8348 }
8349 
bnx2x_handle_module_detect_int(struct link_params * params)8350 void bnx2x_handle_module_detect_int(struct link_params *params)
8351 {
8352 	struct bnx2x *bp = params->bp;
8353 	struct bnx2x_phy *phy;
8354 	u32 gpio_val;
8355 	u8 gpio_num, gpio_port;
8356 	if (CHIP_IS_E3(bp))
8357 		phy = &params->phy[INT_PHY];
8358 	else
8359 		phy = &params->phy[EXT_PHY1];
8360 
8361 	if (bnx2x_get_mod_abs_int_cfg(bp, params->chip_id, params->shmem_base,
8362 				      params->port, &gpio_num, &gpio_port) ==
8363 	    -EINVAL) {
8364 		DP(NETIF_MSG_LINK, "Failed to get MOD_ABS interrupt config\n");
8365 		return;
8366 	}
8367 
8368 	/* Set valid module led off */
8369 	bnx2x_set_sfp_module_fault_led(params, MISC_REGISTERS_GPIO_HIGH);
8370 
8371 	/* Get current gpio val reflecting module plugged in / out*/
8372 	gpio_val = bnx2x_get_gpio(bp, gpio_num, gpio_port);
8373 
8374 	/* Call the handling function in case module is detected */
8375 	if (gpio_val == 0) {
8376 		bnx2x_power_sfp_module(params, phy, 1);
8377 		bnx2x_set_gpio_int(bp, gpio_num,
8378 				   MISC_REGISTERS_GPIO_INT_OUTPUT_CLR,
8379 				   gpio_port);
8380 		if (bnx2x_wait_for_sfp_module_initialized(phy, params) == 0)
8381 			bnx2x_sfp_module_detection(phy, params);
8382 		else
8383 			DP(NETIF_MSG_LINK, "SFP+ module is not initialized\n");
8384 	} else {
8385 		u32 val = REG_RD(bp, params->shmem_base +
8386 				 offsetof(struct shmem_region, dev_info.
8387 					  port_feature_config[params->port].
8388 					  config));
8389 		bnx2x_set_gpio_int(bp, gpio_num,
8390 				   MISC_REGISTERS_GPIO_INT_OUTPUT_SET,
8391 				   gpio_port);
8392 		/*
8393 		 * Module was plugged out.
8394 		 * Disable transmit for this module
8395 		 */
8396 		phy->media_type = ETH_PHY_NOT_PRESENT;
8397 		if (((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) ==
8398 		     PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_DISABLE_TX_LASER) ||
8399 		    CHIP_IS_E3(bp))
8400 			bnx2x_sfp_set_transmitter(params, phy, 0);
8401 	}
8402 }
8403 
8404 /******************************************************************/
8405 /*		Used by 8706 and 8727                             */
8406 /******************************************************************/
bnx2x_sfp_mask_fault(struct bnx2x * bp,struct bnx2x_phy * phy,u16 alarm_status_offset,u16 alarm_ctrl_offset)8407 static void bnx2x_sfp_mask_fault(struct bnx2x *bp,
8408 				 struct bnx2x_phy *phy,
8409 				 u16 alarm_status_offset,
8410 				 u16 alarm_ctrl_offset)
8411 {
8412 	u16 alarm_status, val;
8413 	bnx2x_cl45_read(bp, phy,
8414 			MDIO_PMA_DEVAD, alarm_status_offset,
8415 			&alarm_status);
8416 	bnx2x_cl45_read(bp, phy,
8417 			MDIO_PMA_DEVAD, alarm_status_offset,
8418 			&alarm_status);
8419 	/* Mask or enable the fault event. */
8420 	bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD, alarm_ctrl_offset, &val);
8421 	if (alarm_status & (1<<0))
8422 		val &= ~(1<<0);
8423 	else
8424 		val |= (1<<0);
8425 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, alarm_ctrl_offset, val);
8426 }
8427 /******************************************************************/
8428 /*		common BCM8706/BCM8726 PHY SECTION		  */
8429 /******************************************************************/
bnx2x_8706_8726_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)8430 static u8 bnx2x_8706_8726_read_status(struct bnx2x_phy *phy,
8431 				      struct link_params *params,
8432 				      struct link_vars *vars)
8433 {
8434 	u8 link_up = 0;
8435 	u16 val1, val2, rx_sd, pcs_status;
8436 	struct bnx2x *bp = params->bp;
8437 	DP(NETIF_MSG_LINK, "XGXS 8706/8726\n");
8438 	/* Clear RX Alarm*/
8439 	bnx2x_cl45_read(bp, phy,
8440 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT, &val2);
8441 
8442 	bnx2x_sfp_mask_fault(bp, phy, MDIO_PMA_LASI_TXSTAT,
8443 			     MDIO_PMA_LASI_TXCTRL);
8444 
8445 	/* clear LASI indication*/
8446 	bnx2x_cl45_read(bp, phy,
8447 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val1);
8448 	bnx2x_cl45_read(bp, phy,
8449 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val2);
8450 	DP(NETIF_MSG_LINK, "8706/8726 LASI status 0x%x--> 0x%x\n", val1, val2);
8451 
8452 	bnx2x_cl45_read(bp, phy,
8453 			MDIO_PMA_DEVAD, MDIO_PMA_REG_RX_SD, &rx_sd);
8454 	bnx2x_cl45_read(bp, phy,
8455 			MDIO_PCS_DEVAD, MDIO_PCS_REG_STATUS, &pcs_status);
8456 	bnx2x_cl45_read(bp, phy,
8457 			MDIO_AN_DEVAD, MDIO_AN_REG_LINK_STATUS, &val2);
8458 	bnx2x_cl45_read(bp, phy,
8459 			MDIO_AN_DEVAD, MDIO_AN_REG_LINK_STATUS, &val2);
8460 
8461 	DP(NETIF_MSG_LINK, "8706/8726 rx_sd 0x%x pcs_status 0x%x 1Gbps"
8462 			" link_status 0x%x\n", rx_sd, pcs_status, val2);
8463 	/*
8464 	 * link is up if both bit 0 of pmd_rx_sd and bit 0 of pcs_status
8465 	 * are set, or if the autoneg bit 1 is set
8466 	 */
8467 	link_up = ((rx_sd & pcs_status & 0x1) || (val2 & (1<<1)));
8468 	if (link_up) {
8469 		if (val2 & (1<<1))
8470 			vars->line_speed = SPEED_1000;
8471 		else
8472 			vars->line_speed = SPEED_10000;
8473 		bnx2x_ext_phy_resolve_fc(phy, params, vars);
8474 		vars->duplex = DUPLEX_FULL;
8475 	}
8476 
8477 	/* Capture 10G link fault. Read twice to clear stale value. */
8478 	if (vars->line_speed == SPEED_10000) {
8479 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
8480 			    MDIO_PMA_LASI_TXSTAT, &val1);
8481 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
8482 			    MDIO_PMA_LASI_TXSTAT, &val1);
8483 		if (val1 & (1<<0))
8484 			vars->fault_detected = 1;
8485 	}
8486 
8487 	return link_up;
8488 }
8489 
8490 /******************************************************************/
8491 /*			BCM8706 PHY SECTION			  */
8492 /******************************************************************/
bnx2x_8706_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)8493 static u8 bnx2x_8706_config_init(struct bnx2x_phy *phy,
8494 				 struct link_params *params,
8495 				 struct link_vars *vars)
8496 {
8497 	u32 tx_en_mode;
8498 	u16 cnt, val, tmp1;
8499 	struct bnx2x *bp = params->bp;
8500 
8501 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
8502 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, params->port);
8503 	/* HW reset */
8504 	bnx2x_ext_phy_hw_reset(bp, params->port);
8505 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0xa040);
8506 	bnx2x_wait_reset_complete(bp, phy, params);
8507 
8508 	/* Wait until fw is loaded */
8509 	for (cnt = 0; cnt < 100; cnt++) {
8510 		bnx2x_cl45_read(bp, phy,
8511 				MDIO_PMA_DEVAD, MDIO_PMA_REG_ROM_VER1, &val);
8512 		if (val)
8513 			break;
8514 		msleep(10);
8515 	}
8516 	DP(NETIF_MSG_LINK, "XGXS 8706 is initialized after %d ms\n", cnt);
8517 	if ((params->feature_config_flags &
8518 	     FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED)) {
8519 		u8 i;
8520 		u16 reg;
8521 		for (i = 0; i < 4; i++) {
8522 			reg = MDIO_XS_8706_REG_BANK_RX0 +
8523 				i*(MDIO_XS_8706_REG_BANK_RX1 -
8524 				   MDIO_XS_8706_REG_BANK_RX0);
8525 			bnx2x_cl45_read(bp, phy, MDIO_XS_DEVAD, reg, &val);
8526 			/* Clear first 3 bits of the control */
8527 			val &= ~0x7;
8528 			/* Set control bits according to configuration */
8529 			val |= (phy->rx_preemphasis[i] & 0x7);
8530 			DP(NETIF_MSG_LINK, "Setting RX Equalizer to BCM8706"
8531 				   " reg 0x%x <-- val 0x%x\n", reg, val);
8532 			bnx2x_cl45_write(bp, phy, MDIO_XS_DEVAD, reg, val);
8533 		}
8534 	}
8535 	/* Force speed */
8536 	if (phy->req_line_speed == SPEED_10000) {
8537 		DP(NETIF_MSG_LINK, "XGXS 8706 force 10Gbps\n");
8538 
8539 		bnx2x_cl45_write(bp, phy,
8540 				 MDIO_PMA_DEVAD,
8541 				 MDIO_PMA_REG_DIGITAL_CTRL, 0x400);
8542 		bnx2x_cl45_write(bp, phy,
8543 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_TXCTRL,
8544 				 0);
8545 		/* Arm LASI for link and Tx fault. */
8546 		bnx2x_cl45_write(bp, phy,
8547 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 3);
8548 	} else {
8549 		/* Force 1Gbps using autoneg with 1G advertisement */
8550 
8551 		/* Allow CL37 through CL73 */
8552 		DP(NETIF_MSG_LINK, "XGXS 8706 AutoNeg\n");
8553 		bnx2x_cl45_write(bp, phy,
8554 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_CL73, 0x040c);
8555 
8556 		/* Enable Full-Duplex advertisement on CL37 */
8557 		bnx2x_cl45_write(bp, phy,
8558 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LP, 0x0020);
8559 		/* Enable CL37 AN */
8560 		bnx2x_cl45_write(bp, phy,
8561 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x1000);
8562 		/* 1G support */
8563 		bnx2x_cl45_write(bp, phy,
8564 				 MDIO_AN_DEVAD, MDIO_AN_REG_ADV, (1<<5));
8565 
8566 		/* Enable clause 73 AN */
8567 		bnx2x_cl45_write(bp, phy,
8568 				 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x1200);
8569 		bnx2x_cl45_write(bp, phy,
8570 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
8571 				 0x0400);
8572 		bnx2x_cl45_write(bp, phy,
8573 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL,
8574 				 0x0004);
8575 	}
8576 	bnx2x_save_bcm_spirom_ver(bp, phy, params->port);
8577 
8578 	/*
8579 	 * If TX Laser is controlled by GPIO_0, do not let PHY go into low
8580 	 * power mode, if TX Laser is disabled
8581 	 */
8582 
8583 	tx_en_mode = REG_RD(bp, params->shmem_base +
8584 			    offsetof(struct shmem_region,
8585 				dev_info.port_hw_config[params->port].sfp_ctrl))
8586 			& PORT_HW_CFG_TX_LASER_MASK;
8587 
8588 	if (tx_en_mode == PORT_HW_CFG_TX_LASER_GPIO0) {
8589 		DP(NETIF_MSG_LINK, "Enabling TXONOFF_PWRDN_DIS\n");
8590 		bnx2x_cl45_read(bp, phy,
8591 			MDIO_PMA_DEVAD, MDIO_PMA_REG_DIGITAL_CTRL, &tmp1);
8592 		tmp1 |= 0x1;
8593 		bnx2x_cl45_write(bp, phy,
8594 			MDIO_PMA_DEVAD, MDIO_PMA_REG_DIGITAL_CTRL, tmp1);
8595 	}
8596 
8597 	return 0;
8598 }
8599 
bnx2x_8706_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)8600 static int bnx2x_8706_read_status(struct bnx2x_phy *phy,
8601 				  struct link_params *params,
8602 				  struct link_vars *vars)
8603 {
8604 	return bnx2x_8706_8726_read_status(phy, params, vars);
8605 }
8606 
8607 /******************************************************************/
8608 /*			BCM8726 PHY SECTION			  */
8609 /******************************************************************/
bnx2x_8726_config_loopback(struct bnx2x_phy * phy,struct link_params * params)8610 static void bnx2x_8726_config_loopback(struct bnx2x_phy *phy,
8611 				       struct link_params *params)
8612 {
8613 	struct bnx2x *bp = params->bp;
8614 	DP(NETIF_MSG_LINK, "PMA/PMD ext_phy_loopback: 8726\n");
8615 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x0001);
8616 }
8617 
bnx2x_8726_external_rom_boot(struct bnx2x_phy * phy,struct link_params * params)8618 static void bnx2x_8726_external_rom_boot(struct bnx2x_phy *phy,
8619 					 struct link_params *params)
8620 {
8621 	struct bnx2x *bp = params->bp;
8622 	/* Need to wait 100ms after reset */
8623 	msleep(100);
8624 
8625 	/* Micro controller re-boot */
8626 	bnx2x_cl45_write(bp, phy,
8627 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_GEN_CTRL, 0x018B);
8628 
8629 	/* Set soft reset */
8630 	bnx2x_cl45_write(bp, phy,
8631 			 MDIO_PMA_DEVAD,
8632 			 MDIO_PMA_REG_GEN_CTRL,
8633 			 MDIO_PMA_REG_GEN_CTRL_ROM_MICRO_RESET);
8634 
8635 	bnx2x_cl45_write(bp, phy,
8636 			 MDIO_PMA_DEVAD,
8637 			 MDIO_PMA_REG_MISC_CTRL1, 0x0001);
8638 
8639 	bnx2x_cl45_write(bp, phy,
8640 			 MDIO_PMA_DEVAD,
8641 			 MDIO_PMA_REG_GEN_CTRL,
8642 			 MDIO_PMA_REG_GEN_CTRL_ROM_RESET_INTERNAL_MP);
8643 
8644 	/* wait for 150ms for microcode load */
8645 	msleep(150);
8646 
8647 	/* Disable serial boot control, tristates pins SS_N, SCK, MOSI, MISO */
8648 	bnx2x_cl45_write(bp, phy,
8649 			 MDIO_PMA_DEVAD,
8650 			 MDIO_PMA_REG_MISC_CTRL1, 0x0000);
8651 
8652 	msleep(200);
8653 	bnx2x_save_bcm_spirom_ver(bp, phy, params->port);
8654 }
8655 
bnx2x_8726_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)8656 static u8 bnx2x_8726_read_status(struct bnx2x_phy *phy,
8657 				 struct link_params *params,
8658 				 struct link_vars *vars)
8659 {
8660 	struct bnx2x *bp = params->bp;
8661 	u16 val1;
8662 	u8 link_up = bnx2x_8706_8726_read_status(phy, params, vars);
8663 	if (link_up) {
8664 		bnx2x_cl45_read(bp, phy,
8665 				MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER,
8666 				&val1);
8667 		if (val1 & (1<<15)) {
8668 			DP(NETIF_MSG_LINK, "Tx is disabled\n");
8669 			link_up = 0;
8670 			vars->line_speed = 0;
8671 		}
8672 	}
8673 	return link_up;
8674 }
8675 
8676 
bnx2x_8726_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)8677 static int bnx2x_8726_config_init(struct bnx2x_phy *phy,
8678 				  struct link_params *params,
8679 				  struct link_vars *vars)
8680 {
8681 	struct bnx2x *bp = params->bp;
8682 	DP(NETIF_MSG_LINK, "Initializing BCM8726\n");
8683 
8684 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 1<<15);
8685 	bnx2x_wait_reset_complete(bp, phy, params);
8686 
8687 	bnx2x_8726_external_rom_boot(phy, params);
8688 
8689 	/*
8690 	 * Need to call module detected on initialization since the module
8691 	 * detection triggered by actual module insertion might occur before
8692 	 * driver is loaded, and when driver is loaded, it reset all
8693 	 * registers, including the transmitter
8694 	 */
8695 	bnx2x_sfp_module_detection(phy, params);
8696 
8697 	if (phy->req_line_speed == SPEED_1000) {
8698 		DP(NETIF_MSG_LINK, "Setting 1G force\n");
8699 		bnx2x_cl45_write(bp, phy,
8700 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x40);
8701 		bnx2x_cl45_write(bp, phy,
8702 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2, 0xD);
8703 		bnx2x_cl45_write(bp, phy,
8704 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0x5);
8705 		bnx2x_cl45_write(bp, phy,
8706 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
8707 				 0x400);
8708 	} else if ((phy->req_line_speed == SPEED_AUTO_NEG) &&
8709 		   (phy->speed_cap_mask &
8710 		      PORT_HW_CFG_SPEED_CAPABILITY_D0_1G) &&
8711 		   ((phy->speed_cap_mask &
8712 		      PORT_HW_CFG_SPEED_CAPABILITY_D0_10G) !=
8713 		    PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) {
8714 		DP(NETIF_MSG_LINK, "Setting 1G clause37\n");
8715 		/* Set Flow control */
8716 		bnx2x_ext_phy_set_pause(params, phy, vars);
8717 		bnx2x_cl45_write(bp, phy,
8718 				 MDIO_AN_DEVAD, MDIO_AN_REG_ADV, 0x20);
8719 		bnx2x_cl45_write(bp, phy,
8720 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_CL73, 0x040c);
8721 		bnx2x_cl45_write(bp, phy,
8722 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_FC_LD, 0x0020);
8723 		bnx2x_cl45_write(bp, phy,
8724 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x1000);
8725 		bnx2x_cl45_write(bp, phy,
8726 				MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x1200);
8727 		/*
8728 		 * Enable RX-ALARM control to receive interrupt for 1G speed
8729 		 * change
8730 		 */
8731 		bnx2x_cl45_write(bp, phy,
8732 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0x4);
8733 		bnx2x_cl45_write(bp, phy,
8734 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
8735 				 0x400);
8736 
8737 	} else { /* Default 10G. Set only LASI control */
8738 		bnx2x_cl45_write(bp, phy,
8739 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 1);
8740 	}
8741 
8742 	/* Set TX PreEmphasis if needed */
8743 	if ((params->feature_config_flags &
8744 	     FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED)) {
8745 		DP(NETIF_MSG_LINK,
8746 		   "Setting TX_CTRL1 0x%x, TX_CTRL2 0x%x\n",
8747 			 phy->tx_preemphasis[0],
8748 			 phy->tx_preemphasis[1]);
8749 		bnx2x_cl45_write(bp, phy,
8750 				 MDIO_PMA_DEVAD,
8751 				 MDIO_PMA_REG_8726_TX_CTRL1,
8752 				 phy->tx_preemphasis[0]);
8753 
8754 		bnx2x_cl45_write(bp, phy,
8755 				 MDIO_PMA_DEVAD,
8756 				 MDIO_PMA_REG_8726_TX_CTRL2,
8757 				 phy->tx_preemphasis[1]);
8758 	}
8759 
8760 	return 0;
8761 
8762 }
8763 
bnx2x_8726_link_reset(struct bnx2x_phy * phy,struct link_params * params)8764 static void bnx2x_8726_link_reset(struct bnx2x_phy *phy,
8765 				  struct link_params *params)
8766 {
8767 	struct bnx2x *bp = params->bp;
8768 	DP(NETIF_MSG_LINK, "bnx2x_8726_link_reset port %d\n", params->port);
8769 	/* Set serial boot control for external load */
8770 	bnx2x_cl45_write(bp, phy,
8771 			 MDIO_PMA_DEVAD,
8772 			 MDIO_PMA_REG_GEN_CTRL, 0x0001);
8773 }
8774 
8775 /******************************************************************/
8776 /*			BCM8727 PHY SECTION			  */
8777 /******************************************************************/
8778 
bnx2x_8727_set_link_led(struct bnx2x_phy * phy,struct link_params * params,u8 mode)8779 static void bnx2x_8727_set_link_led(struct bnx2x_phy *phy,
8780 				    struct link_params *params, u8 mode)
8781 {
8782 	struct bnx2x *bp = params->bp;
8783 	u16 led_mode_bitmask = 0;
8784 	u16 gpio_pins_bitmask = 0;
8785 	u16 val;
8786 	/* Only NOC flavor requires to set the LED specifically */
8787 	if (!(phy->flags & FLAGS_NOC))
8788 		return;
8789 	switch (mode) {
8790 	case LED_MODE_FRONT_PANEL_OFF:
8791 	case LED_MODE_OFF:
8792 		led_mode_bitmask = 0;
8793 		gpio_pins_bitmask = 0x03;
8794 		break;
8795 	case LED_MODE_ON:
8796 		led_mode_bitmask = 0;
8797 		gpio_pins_bitmask = 0x02;
8798 		break;
8799 	case LED_MODE_OPER:
8800 		led_mode_bitmask = 0x60;
8801 		gpio_pins_bitmask = 0x11;
8802 		break;
8803 	}
8804 	bnx2x_cl45_read(bp, phy,
8805 			MDIO_PMA_DEVAD,
8806 			MDIO_PMA_REG_8727_PCS_OPT_CTRL,
8807 			&val);
8808 	val &= 0xff8f;
8809 	val |= led_mode_bitmask;
8810 	bnx2x_cl45_write(bp, phy,
8811 			 MDIO_PMA_DEVAD,
8812 			 MDIO_PMA_REG_8727_PCS_OPT_CTRL,
8813 			 val);
8814 	bnx2x_cl45_read(bp, phy,
8815 			MDIO_PMA_DEVAD,
8816 			MDIO_PMA_REG_8727_GPIO_CTRL,
8817 			&val);
8818 	val &= 0xffe0;
8819 	val |= gpio_pins_bitmask;
8820 	bnx2x_cl45_write(bp, phy,
8821 			 MDIO_PMA_DEVAD,
8822 			 MDIO_PMA_REG_8727_GPIO_CTRL,
8823 			 val);
8824 }
bnx2x_8727_hw_reset(struct bnx2x_phy * phy,struct link_params * params)8825 static void bnx2x_8727_hw_reset(struct bnx2x_phy *phy,
8826 				struct link_params *params) {
8827 	u32 swap_val, swap_override;
8828 	u8 port;
8829 	/*
8830 	 * The PHY reset is controlled by GPIO 1. Fake the port number
8831 	 * to cancel the swap done in set_gpio()
8832 	 */
8833 	struct bnx2x *bp = params->bp;
8834 	swap_val = REG_RD(bp, NIG_REG_PORT_SWAP);
8835 	swap_override = REG_RD(bp, NIG_REG_STRAP_OVERRIDE);
8836 	port = (swap_val && swap_override) ^ 1;
8837 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1,
8838 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, port);
8839 }
8840 
bnx2x_8727_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)8841 static int bnx2x_8727_config_init(struct bnx2x_phy *phy,
8842 				  struct link_params *params,
8843 				  struct link_vars *vars)
8844 {
8845 	u32 tx_en_mode;
8846 	u16 tmp1, val, mod_abs, tmp2;
8847 	u16 rx_alarm_ctrl_val;
8848 	u16 lasi_ctrl_val;
8849 	struct bnx2x *bp = params->bp;
8850 	/* Enable PMD link, MOD_ABS_FLT, and 1G link alarm */
8851 
8852 	bnx2x_wait_reset_complete(bp, phy, params);
8853 	rx_alarm_ctrl_val = (1<<2) | (1<<5) ;
8854 	/* Should be 0x6 to enable XS on Tx side. */
8855 	lasi_ctrl_val = 0x0006;
8856 
8857 	DP(NETIF_MSG_LINK, "Initializing BCM8727\n");
8858 	/* enable LASI */
8859 	bnx2x_cl45_write(bp, phy,
8860 			 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
8861 			 rx_alarm_ctrl_val);
8862 	bnx2x_cl45_write(bp, phy,
8863 			 MDIO_PMA_DEVAD, MDIO_PMA_LASI_TXCTRL,
8864 			 0);
8865 	bnx2x_cl45_write(bp, phy,
8866 			 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, lasi_ctrl_val);
8867 
8868 	/*
8869 	 * Initially configure MOD_ABS to interrupt when module is
8870 	 * presence( bit 8)
8871 	 */
8872 	bnx2x_cl45_read(bp, phy,
8873 			MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER, &mod_abs);
8874 	/*
8875 	 * Set EDC off by setting OPTXLOS signal input to low (bit 9).
8876 	 * When the EDC is off it locks onto a reference clock and avoids
8877 	 * becoming 'lost'
8878 	 */
8879 	mod_abs &= ~(1<<8);
8880 	if (!(phy->flags & FLAGS_NOC))
8881 		mod_abs &= ~(1<<9);
8882 	bnx2x_cl45_write(bp, phy,
8883 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER, mod_abs);
8884 
8885 
8886 	/* Enable/Disable PHY transmitter output */
8887 	bnx2x_set_disable_pmd_transmit(params, phy, 0);
8888 
8889 	/* Make MOD_ABS give interrupt on change */
8890 	bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_PCS_OPT_CTRL,
8891 			&val);
8892 	val |= (1<<12);
8893 	if (phy->flags & FLAGS_NOC)
8894 		val |= (3<<5);
8895 
8896 	/*
8897 	 * Set 8727 GPIOs to input to allow reading from the 8727 GPIO0
8898 	 * status which reflect SFP+ module over-current
8899 	 */
8900 	if (!(phy->flags & FLAGS_NOC))
8901 		val &= 0xff8f; /* Reset bits 4-6 */
8902 	bnx2x_cl45_write(bp, phy,
8903 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_PCS_OPT_CTRL, val);
8904 
8905 	bnx2x_8727_power_module(bp, phy, 1);
8906 
8907 	bnx2x_cl45_read(bp, phy,
8908 			MDIO_PMA_DEVAD, MDIO_PMA_REG_M8051_MSGOUT_REG, &tmp1);
8909 
8910 	bnx2x_cl45_read(bp, phy,
8911 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT, &tmp1);
8912 
8913 	/* Set option 1G speed */
8914 	if (phy->req_line_speed == SPEED_1000) {
8915 		DP(NETIF_MSG_LINK, "Setting 1G force\n");
8916 		bnx2x_cl45_write(bp, phy,
8917 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x40);
8918 		bnx2x_cl45_write(bp, phy,
8919 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2, 0xD);
8920 		bnx2x_cl45_read(bp, phy,
8921 				MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2, &tmp1);
8922 		DP(NETIF_MSG_LINK, "1.7 = 0x%x\n", tmp1);
8923 		/*
8924 		 * Power down the XAUI until link is up in case of dual-media
8925 		 * and 1G
8926 		 */
8927 		if (DUAL_MEDIA(params)) {
8928 			bnx2x_cl45_read(bp, phy,
8929 					MDIO_PMA_DEVAD,
8930 					MDIO_PMA_REG_8727_PCS_GP, &val);
8931 			val |= (3<<10);
8932 			bnx2x_cl45_write(bp, phy,
8933 					 MDIO_PMA_DEVAD,
8934 					 MDIO_PMA_REG_8727_PCS_GP, val);
8935 		}
8936 	} else if ((phy->req_line_speed == SPEED_AUTO_NEG) &&
8937 		   ((phy->speed_cap_mask &
8938 		     PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) &&
8939 		   ((phy->speed_cap_mask &
8940 		      PORT_HW_CFG_SPEED_CAPABILITY_D0_10G) !=
8941 		   PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) {
8942 
8943 		DP(NETIF_MSG_LINK, "Setting 1G clause37\n");
8944 		bnx2x_cl45_write(bp, phy,
8945 				 MDIO_AN_DEVAD, MDIO_AN_REG_8727_MISC_CTRL, 0);
8946 		bnx2x_cl45_write(bp, phy,
8947 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x1300);
8948 	} else {
8949 		/*
8950 		 * Since the 8727 has only single reset pin, need to set the 10G
8951 		 * registers although it is default
8952 		 */
8953 		bnx2x_cl45_write(bp, phy,
8954 				 MDIO_AN_DEVAD, MDIO_AN_REG_8727_MISC_CTRL,
8955 				 0x0020);
8956 		bnx2x_cl45_write(bp, phy,
8957 				 MDIO_AN_DEVAD, MDIO_AN_REG_CL37_AN, 0x0100);
8958 		bnx2x_cl45_write(bp, phy,
8959 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x2040);
8960 		bnx2x_cl45_write(bp, phy,
8961 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_10G_CTRL2,
8962 				 0x0008);
8963 	}
8964 
8965 	/*
8966 	 * Set 2-wire transfer rate of SFP+ module EEPROM
8967 	 * to 100Khz since some DACs(direct attached cables) do
8968 	 * not work at 400Khz.
8969 	 */
8970 	bnx2x_cl45_write(bp, phy,
8971 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_TWO_WIRE_SLAVE_ADDR,
8972 			 0xa001);
8973 
8974 	/* Set TX PreEmphasis if needed */
8975 	if ((params->feature_config_flags &
8976 	     FEATURE_CONFIG_OVERRIDE_PREEMPHASIS_ENABLED)) {
8977 		DP(NETIF_MSG_LINK, "Setting TX_CTRL1 0x%x, TX_CTRL2 0x%x\n",
8978 			   phy->tx_preemphasis[0],
8979 			   phy->tx_preemphasis[1]);
8980 		bnx2x_cl45_write(bp, phy,
8981 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_TX_CTRL1,
8982 				 phy->tx_preemphasis[0]);
8983 
8984 		bnx2x_cl45_write(bp, phy,
8985 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_TX_CTRL2,
8986 				 phy->tx_preemphasis[1]);
8987 	}
8988 
8989 	/*
8990 	 * If TX Laser is controlled by GPIO_0, do not let PHY go into low
8991 	 * power mode, if TX Laser is disabled
8992 	 */
8993 	tx_en_mode = REG_RD(bp, params->shmem_base +
8994 			    offsetof(struct shmem_region,
8995 				dev_info.port_hw_config[params->port].sfp_ctrl))
8996 			& PORT_HW_CFG_TX_LASER_MASK;
8997 
8998 	if (tx_en_mode == PORT_HW_CFG_TX_LASER_GPIO0) {
8999 
9000 		DP(NETIF_MSG_LINK, "Enabling TXONOFF_PWRDN_DIS\n");
9001 		bnx2x_cl45_read(bp, phy,
9002 			MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_OPT_CFG_REG, &tmp2);
9003 		tmp2 |= 0x1000;
9004 		tmp2 &= 0xFFEF;
9005 		bnx2x_cl45_write(bp, phy,
9006 			MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_OPT_CFG_REG, tmp2);
9007 	}
9008 
9009 	return 0;
9010 }
9011 
bnx2x_8727_handle_mod_abs(struct bnx2x_phy * phy,struct link_params * params)9012 static void bnx2x_8727_handle_mod_abs(struct bnx2x_phy *phy,
9013 				      struct link_params *params)
9014 {
9015 	struct bnx2x *bp = params->bp;
9016 	u16 mod_abs, rx_alarm_status;
9017 	u32 val = REG_RD(bp, params->shmem_base +
9018 			     offsetof(struct shmem_region, dev_info.
9019 				      port_feature_config[params->port].
9020 				      config));
9021 	bnx2x_cl45_read(bp, phy,
9022 			MDIO_PMA_DEVAD,
9023 			MDIO_PMA_REG_PHY_IDENTIFIER, &mod_abs);
9024 	if (mod_abs & (1<<8)) {
9025 
9026 		/* Module is absent */
9027 		DP(NETIF_MSG_LINK,
9028 		   "MOD_ABS indication show module is absent\n");
9029 		phy->media_type = ETH_PHY_NOT_PRESENT;
9030 		/*
9031 		 * 1. Set mod_abs to detect next module
9032 		 *    presence event
9033 		 * 2. Set EDC off by setting OPTXLOS signal input to low
9034 		 *    (bit 9).
9035 		 *    When the EDC is off it locks onto a reference clock and
9036 		 *    avoids becoming 'lost'.
9037 		 */
9038 		mod_abs &= ~(1<<8);
9039 		if (!(phy->flags & FLAGS_NOC))
9040 			mod_abs &= ~(1<<9);
9041 		bnx2x_cl45_write(bp, phy,
9042 				 MDIO_PMA_DEVAD,
9043 				 MDIO_PMA_REG_PHY_IDENTIFIER, mod_abs);
9044 
9045 		/*
9046 		 * Clear RX alarm since it stays up as long as
9047 		 * the mod_abs wasn't changed
9048 		 */
9049 		bnx2x_cl45_read(bp, phy,
9050 				MDIO_PMA_DEVAD,
9051 				MDIO_PMA_LASI_RXSTAT, &rx_alarm_status);
9052 
9053 	} else {
9054 		/* Module is present */
9055 		DP(NETIF_MSG_LINK,
9056 		   "MOD_ABS indication show module is present\n");
9057 		/*
9058 		 * First disable transmitter, and if the module is ok, the
9059 		 * module_detection will enable it
9060 		 * 1. Set mod_abs to detect next module absent event ( bit 8)
9061 		 * 2. Restore the default polarity of the OPRXLOS signal and
9062 		 * this signal will then correctly indicate the presence or
9063 		 * absence of the Rx signal. (bit 9)
9064 		 */
9065 		mod_abs |= (1<<8);
9066 		if (!(phy->flags & FLAGS_NOC))
9067 			mod_abs |= (1<<9);
9068 		bnx2x_cl45_write(bp, phy,
9069 				 MDIO_PMA_DEVAD,
9070 				 MDIO_PMA_REG_PHY_IDENTIFIER, mod_abs);
9071 
9072 		/*
9073 		 * Clear RX alarm since it stays up as long as the mod_abs
9074 		 * wasn't changed. This is need to be done before calling the
9075 		 * module detection, otherwise it will clear* the link update
9076 		 * alarm
9077 		 */
9078 		bnx2x_cl45_read(bp, phy,
9079 				MDIO_PMA_DEVAD,
9080 				MDIO_PMA_LASI_RXSTAT, &rx_alarm_status);
9081 
9082 
9083 		if ((val & PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_MASK) ==
9084 		    PORT_FEAT_CFG_OPT_MDL_ENFRCMNT_DISABLE_TX_LASER)
9085 			bnx2x_sfp_set_transmitter(params, phy, 0);
9086 
9087 		if (bnx2x_wait_for_sfp_module_initialized(phy, params) == 0)
9088 			bnx2x_sfp_module_detection(phy, params);
9089 		else
9090 			DP(NETIF_MSG_LINK, "SFP+ module is not initialized\n");
9091 	}
9092 
9093 	DP(NETIF_MSG_LINK, "8727 RX_ALARM_STATUS 0x%x\n",
9094 		   rx_alarm_status);
9095 	/* No need to check link status in case of module plugged in/out */
9096 }
9097 
bnx2x_8727_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)9098 static u8 bnx2x_8727_read_status(struct bnx2x_phy *phy,
9099 				 struct link_params *params,
9100 				 struct link_vars *vars)
9101 
9102 {
9103 	struct bnx2x *bp = params->bp;
9104 	u8 link_up = 0, oc_port = params->port;
9105 	u16 link_status = 0;
9106 	u16 rx_alarm_status, lasi_ctrl, val1;
9107 
9108 	/* If PHY is not initialized, do not check link status */
9109 	bnx2x_cl45_read(bp, phy,
9110 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL,
9111 			&lasi_ctrl);
9112 	if (!lasi_ctrl)
9113 		return 0;
9114 
9115 	/* Check the LASI on Rx */
9116 	bnx2x_cl45_read(bp, phy,
9117 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXSTAT,
9118 			&rx_alarm_status);
9119 	vars->line_speed = 0;
9120 	DP(NETIF_MSG_LINK, "8727 RX_ALARM_STATUS  0x%x\n", rx_alarm_status);
9121 
9122 	bnx2x_sfp_mask_fault(bp, phy, MDIO_PMA_LASI_TXSTAT,
9123 			     MDIO_PMA_LASI_TXCTRL);
9124 
9125 	bnx2x_cl45_read(bp, phy,
9126 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val1);
9127 
9128 	DP(NETIF_MSG_LINK, "8727 LASI status 0x%x\n", val1);
9129 
9130 	/* Clear MSG-OUT */
9131 	bnx2x_cl45_read(bp, phy,
9132 			MDIO_PMA_DEVAD, MDIO_PMA_REG_M8051_MSGOUT_REG, &val1);
9133 
9134 	/*
9135 	 * If a module is present and there is need to check
9136 	 * for over current
9137 	 */
9138 	if (!(phy->flags & FLAGS_NOC) && !(rx_alarm_status & (1<<5))) {
9139 		/* Check over-current using 8727 GPIO0 input*/
9140 		bnx2x_cl45_read(bp, phy,
9141 				MDIO_PMA_DEVAD, MDIO_PMA_REG_8727_GPIO_CTRL,
9142 				&val1);
9143 
9144 		if ((val1 & (1<<8)) == 0) {
9145 			if (!CHIP_IS_E1x(bp))
9146 				oc_port = BP_PATH(bp) + (params->port << 1);
9147 			DP(NETIF_MSG_LINK,
9148 			   "8727 Power fault has been detected on port %d\n",
9149 			   oc_port);
9150 			netdev_err(bp->dev, "Error: Power fault on Port %d has "
9151 					    "been detected and the power to "
9152 					    "that SFP+ module has been removed "
9153 					    "to prevent failure of the card. "
9154 					    "Please remove the SFP+ module and "
9155 					    "restart the system to clear this "
9156 					    "error.\n",
9157 			 oc_port);
9158 			/* Disable all RX_ALARMs except for mod_abs */
9159 			bnx2x_cl45_write(bp, phy,
9160 					 MDIO_PMA_DEVAD,
9161 					 MDIO_PMA_LASI_RXCTRL, (1<<5));
9162 
9163 			bnx2x_cl45_read(bp, phy,
9164 					MDIO_PMA_DEVAD,
9165 					MDIO_PMA_REG_PHY_IDENTIFIER, &val1);
9166 			/* Wait for module_absent_event */
9167 			val1 |= (1<<8);
9168 			bnx2x_cl45_write(bp, phy,
9169 					 MDIO_PMA_DEVAD,
9170 					 MDIO_PMA_REG_PHY_IDENTIFIER, val1);
9171 			/* Clear RX alarm */
9172 			bnx2x_cl45_read(bp, phy,
9173 				MDIO_PMA_DEVAD,
9174 				MDIO_PMA_LASI_RXSTAT, &rx_alarm_status);
9175 			return 0;
9176 		}
9177 	} /* Over current check */
9178 
9179 	/* When module absent bit is set, check module */
9180 	if (rx_alarm_status & (1<<5)) {
9181 		bnx2x_8727_handle_mod_abs(phy, params);
9182 		/* Enable all mod_abs and link detection bits */
9183 		bnx2x_cl45_write(bp, phy,
9184 				 MDIO_PMA_DEVAD, MDIO_PMA_LASI_RXCTRL,
9185 				 ((1<<5) | (1<<2)));
9186 	}
9187 	DP(NETIF_MSG_LINK, "Enabling 8727 TX laser if SFP is approved\n");
9188 	bnx2x_8727_specific_func(phy, params, ENABLE_TX);
9189 	/* If transmitter is disabled, ignore false link up indication */
9190 	bnx2x_cl45_read(bp, phy,
9191 			MDIO_PMA_DEVAD, MDIO_PMA_REG_PHY_IDENTIFIER, &val1);
9192 	if (val1 & (1<<15)) {
9193 		DP(NETIF_MSG_LINK, "Tx is disabled\n");
9194 		return 0;
9195 	}
9196 
9197 	bnx2x_cl45_read(bp, phy,
9198 			MDIO_PMA_DEVAD,
9199 			MDIO_PMA_REG_8073_SPEED_LINK_STATUS, &link_status);
9200 
9201 	/*
9202 	 * Bits 0..2 --> speed detected,
9203 	 * Bits 13..15--> link is down
9204 	 */
9205 	if ((link_status & (1<<2)) && (!(link_status & (1<<15)))) {
9206 		link_up = 1;
9207 		vars->line_speed = SPEED_10000;
9208 		DP(NETIF_MSG_LINK, "port %x: External link up in 10G\n",
9209 			   params->port);
9210 	} else if ((link_status & (1<<0)) && (!(link_status & (1<<13)))) {
9211 		link_up = 1;
9212 		vars->line_speed = SPEED_1000;
9213 		DP(NETIF_MSG_LINK, "port %x: External link up in 1G\n",
9214 			   params->port);
9215 	} else {
9216 		link_up = 0;
9217 		DP(NETIF_MSG_LINK, "port %x: External link is down\n",
9218 			   params->port);
9219 	}
9220 
9221 	/* Capture 10G link fault. */
9222 	if (vars->line_speed == SPEED_10000) {
9223 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
9224 			    MDIO_PMA_LASI_TXSTAT, &val1);
9225 
9226 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD,
9227 			    MDIO_PMA_LASI_TXSTAT, &val1);
9228 
9229 		if (val1 & (1<<0)) {
9230 			vars->fault_detected = 1;
9231 		}
9232 	}
9233 
9234 	if (link_up) {
9235 		bnx2x_ext_phy_resolve_fc(phy, params, vars);
9236 		vars->duplex = DUPLEX_FULL;
9237 		DP(NETIF_MSG_LINK, "duplex = 0x%x\n", vars->duplex);
9238 	}
9239 
9240 	if ((DUAL_MEDIA(params)) &&
9241 	    (phy->req_line_speed == SPEED_1000)) {
9242 		bnx2x_cl45_read(bp, phy,
9243 				MDIO_PMA_DEVAD,
9244 				MDIO_PMA_REG_8727_PCS_GP, &val1);
9245 		/*
9246 		 * In case of dual-media board and 1G, power up the XAUI side,
9247 		 * otherwise power it down. For 10G it is done automatically
9248 		 */
9249 		if (link_up)
9250 			val1 &= ~(3<<10);
9251 		else
9252 			val1 |= (3<<10);
9253 		bnx2x_cl45_write(bp, phy,
9254 				 MDIO_PMA_DEVAD,
9255 				 MDIO_PMA_REG_8727_PCS_GP, val1);
9256 	}
9257 	return link_up;
9258 }
9259 
bnx2x_8727_link_reset(struct bnx2x_phy * phy,struct link_params * params)9260 static void bnx2x_8727_link_reset(struct bnx2x_phy *phy,
9261 				  struct link_params *params)
9262 {
9263 	struct bnx2x *bp = params->bp;
9264 
9265 	/* Enable/Disable PHY transmitter output */
9266 	bnx2x_set_disable_pmd_transmit(params, phy, 1);
9267 
9268 	/* Disable Transmitter */
9269 	bnx2x_sfp_set_transmitter(params, phy, 0);
9270 	/* Clear LASI */
9271 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0);
9272 
9273 }
9274 
9275 /******************************************************************/
9276 /*		BCM8481/BCM84823/BCM84833 PHY SECTION	          */
9277 /******************************************************************/
bnx2x_save_848xx_spirom_version(struct bnx2x_phy * phy,struct bnx2x * bp,u8 port)9278 static void bnx2x_save_848xx_spirom_version(struct bnx2x_phy *phy,
9279 					    struct bnx2x *bp,
9280 					    u8 port)
9281 {
9282 	u16 val, fw_ver1, fw_ver2, cnt;
9283 
9284 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) {
9285 		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD, 0x400f, &fw_ver1);
9286 		bnx2x_save_spirom_version(bp, port,
9287 				((fw_ver1 & 0xf000)>>5) | (fw_ver1 & 0x7f),
9288 				phy->ver_addr);
9289 	} else {
9290 		/* For 32-bit registers in 848xx, access via MDIO2ARM i/f. */
9291 		/* (1) set reg 0xc200_0014(SPI_BRIDGE_CTRL_2) to 0x03000000 */
9292 		bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, 0xA819, 0x0014);
9293 		bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, 0xA81A, 0xc200);
9294 		bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, 0xA81B, 0x0000);
9295 		bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, 0xA81C, 0x0300);
9296 		bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, 0xA817, 0x0009);
9297 
9298 		for (cnt = 0; cnt < 100; cnt++) {
9299 			bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD, 0xA818, &val);
9300 			if (val & 1)
9301 				break;
9302 			udelay(5);
9303 		}
9304 		if (cnt == 100) {
9305 			DP(NETIF_MSG_LINK, "Unable to read 848xx "
9306 					"phy fw version(1)\n");
9307 			bnx2x_save_spirom_version(bp, port, 0,
9308 						  phy->ver_addr);
9309 			return;
9310 		}
9311 
9312 
9313 		/* 2) read register 0xc200_0000 (SPI_FW_STATUS) */
9314 		bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, 0xA819, 0x0000);
9315 		bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, 0xA81A, 0xc200);
9316 		bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, 0xA817, 0x000A);
9317 		for (cnt = 0; cnt < 100; cnt++) {
9318 			bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD, 0xA818, &val);
9319 			if (val & 1)
9320 				break;
9321 			udelay(5);
9322 		}
9323 		if (cnt == 100) {
9324 			DP(NETIF_MSG_LINK, "Unable to read 848xx phy fw "
9325 					"version(2)\n");
9326 			bnx2x_save_spirom_version(bp, port, 0,
9327 						  phy->ver_addr);
9328 			return;
9329 		}
9330 
9331 		/* lower 16 bits of the register SPI_FW_STATUS */
9332 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD, 0xA81B, &fw_ver1);
9333 		/* upper 16 bits of register SPI_FW_STATUS */
9334 		bnx2x_cl45_read(bp, phy, MDIO_PMA_DEVAD, 0xA81C, &fw_ver2);
9335 
9336 		bnx2x_save_spirom_version(bp, port, (fw_ver2<<16) | fw_ver1,
9337 					  phy->ver_addr);
9338 	}
9339 
9340 }
bnx2x_848xx_set_led(struct bnx2x * bp,struct bnx2x_phy * phy)9341 static void bnx2x_848xx_set_led(struct bnx2x *bp,
9342 				struct bnx2x_phy *phy)
9343 {
9344 	u16 val, offset;
9345 
9346 	/* PHYC_CTL_LED_CTL */
9347 	bnx2x_cl45_read(bp, phy,
9348 			MDIO_PMA_DEVAD,
9349 			MDIO_PMA_REG_8481_LINK_SIGNAL, &val);
9350 	val &= 0xFE00;
9351 	val |= 0x0092;
9352 
9353 	bnx2x_cl45_write(bp, phy,
9354 			 MDIO_PMA_DEVAD,
9355 			 MDIO_PMA_REG_8481_LINK_SIGNAL, val);
9356 
9357 	bnx2x_cl45_write(bp, phy,
9358 			 MDIO_PMA_DEVAD,
9359 			 MDIO_PMA_REG_8481_LED1_MASK,
9360 			 0x80);
9361 
9362 	bnx2x_cl45_write(bp, phy,
9363 			 MDIO_PMA_DEVAD,
9364 			 MDIO_PMA_REG_8481_LED2_MASK,
9365 			 0x18);
9366 
9367 	/* Select activity source by Tx and Rx, as suggested by PHY AE */
9368 	bnx2x_cl45_write(bp, phy,
9369 			 MDIO_PMA_DEVAD,
9370 			 MDIO_PMA_REG_8481_LED3_MASK,
9371 			 0x0006);
9372 
9373 	/* Select the closest activity blink rate to that in 10/100/1000 */
9374 	bnx2x_cl45_write(bp, phy,
9375 			MDIO_PMA_DEVAD,
9376 			MDIO_PMA_REG_8481_LED3_BLINK,
9377 			0);
9378 
9379 	/* Configure the blink rate to ~15.9 Hz */
9380 	bnx2x_cl45_write(bp, phy,
9381 			MDIO_PMA_DEVAD,
9382 			MDIO_PMA_REG_84823_CTL_SLOW_CLK_CNT_HIGH,
9383 			MDIO_PMA_REG_84823_BLINK_RATE_VAL_15P9HZ);
9384 
9385 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833)
9386 		offset = MDIO_PMA_REG_84833_CTL_LED_CTL_1;
9387 	else
9388 		offset = MDIO_PMA_REG_84823_CTL_LED_CTL_1;
9389 
9390 	bnx2x_cl45_read(bp, phy,
9391 			MDIO_PMA_DEVAD, offset, &val);
9392 	val |= MDIO_PMA_REG_84823_LED3_STRETCH_EN; /* stretch_en for LED3*/
9393 	bnx2x_cl45_write(bp, phy,
9394 			 MDIO_PMA_DEVAD, offset, val);
9395 
9396 	/* 'Interrupt Mask' */
9397 	bnx2x_cl45_write(bp, phy,
9398 			 MDIO_AN_DEVAD,
9399 			 0xFFFB, 0xFFFD);
9400 }
9401 
bnx2x_848xx_cmn_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)9402 static int bnx2x_848xx_cmn_config_init(struct bnx2x_phy *phy,
9403 				       struct link_params *params,
9404 				       struct link_vars *vars)
9405 {
9406 	struct bnx2x *bp = params->bp;
9407 	u16 autoneg_val, an_1000_val, an_10_100_val, an_10g_val;
9408 	u16 tmp_req_line_speed;
9409 
9410 	tmp_req_line_speed = phy->req_line_speed;
9411 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) {
9412 		if (phy->req_line_speed == SPEED_10000)
9413 			phy->req_line_speed = SPEED_AUTO_NEG;
9414 	} else {
9415 		/* Save spirom version */
9416 		bnx2x_save_848xx_spirom_version(phy, bp, params->port);
9417 	}
9418 	/*
9419 	 * This phy uses the NIG latch mechanism since link indication
9420 	 * arrives through its LED4 and not via its LASI signal, so we
9421 	 * get steady signal instead of clear on read
9422 	 */
9423 	bnx2x_bits_en(bp, NIG_REG_LATCH_BC_0 + params->port*4,
9424 		      1 << NIG_LATCH_BC_ENABLE_MI_INT);
9425 
9426 	bnx2x_cl45_write(bp, phy,
9427 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 0x0000);
9428 
9429 	bnx2x_848xx_set_led(bp, phy);
9430 
9431 	/* set 1000 speed advertisement */
9432 	bnx2x_cl45_read(bp, phy,
9433 			MDIO_AN_DEVAD, MDIO_AN_REG_8481_1000T_CTRL,
9434 			&an_1000_val);
9435 
9436 	bnx2x_ext_phy_set_pause(params, phy, vars);
9437 	bnx2x_cl45_read(bp, phy,
9438 			MDIO_AN_DEVAD,
9439 			MDIO_AN_REG_8481_LEGACY_AN_ADV,
9440 			&an_10_100_val);
9441 	bnx2x_cl45_read(bp, phy,
9442 			MDIO_AN_DEVAD, MDIO_AN_REG_8481_LEGACY_MII_CTRL,
9443 			&autoneg_val);
9444 	/* Disable forced speed */
9445 	autoneg_val &= ~((1<<6) | (1<<8) | (1<<9) | (1<<12) | (1<<13));
9446 	an_10_100_val &= ~((1<<5) | (1<<6) | (1<<7) | (1<<8));
9447 
9448 	if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
9449 	     (phy->speed_cap_mask &
9450 	     PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) ||
9451 	    (phy->req_line_speed == SPEED_1000)) {
9452 		an_1000_val |= (1<<8);
9453 		autoneg_val |= (1<<9 | 1<<12);
9454 		if (phy->req_duplex == DUPLEX_FULL)
9455 			an_1000_val |= (1<<9);
9456 		DP(NETIF_MSG_LINK, "Advertising 1G\n");
9457 	} else
9458 		an_1000_val &= ~((1<<8) | (1<<9));
9459 
9460 	bnx2x_cl45_write(bp, phy,
9461 			 MDIO_AN_DEVAD, MDIO_AN_REG_8481_1000T_CTRL,
9462 			 an_1000_val);
9463 
9464 	/* set 100 speed advertisement */
9465 	if ((phy->req_line_speed == SPEED_AUTO_NEG) &&
9466 	     (phy->speed_cap_mask &
9467 	      (PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_FULL |
9468 	       PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_HALF))) {
9469 		an_10_100_val |= (1<<7);
9470 		/* Enable autoneg and restart autoneg for legacy speeds */
9471 		autoneg_val |= (1<<9 | 1<<12);
9472 
9473 		if (phy->req_duplex == DUPLEX_FULL)
9474 			an_10_100_val |= (1<<8);
9475 		DP(NETIF_MSG_LINK, "Advertising 100M\n");
9476 	}
9477 	/* set 10 speed advertisement */
9478 	if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
9479 	     (phy->speed_cap_mask &
9480 	      (PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL |
9481 	       PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_HALF)) &&
9482 	     (phy->supported &
9483 	      (SUPPORTED_10baseT_Half |
9484 	       SUPPORTED_10baseT_Full)))) {
9485 		an_10_100_val |= (1<<5);
9486 		autoneg_val |= (1<<9 | 1<<12);
9487 		if (phy->req_duplex == DUPLEX_FULL)
9488 			an_10_100_val |= (1<<6);
9489 		DP(NETIF_MSG_LINK, "Advertising 10M\n");
9490 	}
9491 
9492 	/* Only 10/100 are allowed to work in FORCE mode */
9493 	if ((phy->req_line_speed == SPEED_100) &&
9494 	    (phy->supported &
9495 	     (SUPPORTED_100baseT_Half |
9496 	      SUPPORTED_100baseT_Full))) {
9497 		autoneg_val |= (1<<13);
9498 		/* Enabled AUTO-MDIX when autoneg is disabled */
9499 		bnx2x_cl45_write(bp, phy,
9500 				 MDIO_AN_DEVAD, MDIO_AN_REG_8481_AUX_CTRL,
9501 				 (1<<15 | 1<<9 | 7<<0));
9502 		/* The PHY needs this set even for forced link. */
9503 		an_10_100_val |= (1<<8) | (1<<7);
9504 		DP(NETIF_MSG_LINK, "Setting 100M force\n");
9505 	}
9506 	if ((phy->req_line_speed == SPEED_10) &&
9507 	    (phy->supported &
9508 	     (SUPPORTED_10baseT_Half |
9509 	      SUPPORTED_10baseT_Full))) {
9510 		/* Enabled AUTO-MDIX when autoneg is disabled */
9511 		bnx2x_cl45_write(bp, phy,
9512 				 MDIO_AN_DEVAD, MDIO_AN_REG_8481_AUX_CTRL,
9513 				 (1<<15 | 1<<9 | 7<<0));
9514 		DP(NETIF_MSG_LINK, "Setting 10M force\n");
9515 	}
9516 
9517 	bnx2x_cl45_write(bp, phy,
9518 			 MDIO_AN_DEVAD, MDIO_AN_REG_8481_LEGACY_AN_ADV,
9519 			 an_10_100_val);
9520 
9521 	if (phy->req_duplex == DUPLEX_FULL)
9522 		autoneg_val |= (1<<8);
9523 
9524 	/*
9525 	 * Always write this if this is not 84833.
9526 	 * For 84833, write it only when it's a forced speed.
9527 	 */
9528 	if ((phy->type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) ||
9529 		((autoneg_val & (1<<12)) == 0))
9530 		bnx2x_cl45_write(bp, phy,
9531 			 MDIO_AN_DEVAD,
9532 			 MDIO_AN_REG_8481_LEGACY_MII_CTRL, autoneg_val);
9533 
9534 	if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
9535 	    (phy->speed_cap_mask &
9536 	     PORT_HW_CFG_SPEED_CAPABILITY_D0_10G)) ||
9537 		(phy->req_line_speed == SPEED_10000)) {
9538 			DP(NETIF_MSG_LINK, "Advertising 10G\n");
9539 			/* Restart autoneg for 10G*/
9540 
9541 			bnx2x_cl45_read(bp, phy,
9542 					MDIO_AN_DEVAD,
9543 					MDIO_AN_REG_8481_10GBASE_T_AN_CTRL,
9544 					&an_10g_val);
9545 			bnx2x_cl45_write(bp, phy,
9546 					 MDIO_AN_DEVAD,
9547 					 MDIO_AN_REG_8481_10GBASE_T_AN_CTRL,
9548 					 an_10g_val | 0x1000);
9549 			bnx2x_cl45_write(bp, phy,
9550 					 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL,
9551 					 0x3200);
9552 	} else
9553 		bnx2x_cl45_write(bp, phy,
9554 				 MDIO_AN_DEVAD,
9555 				 MDIO_AN_REG_8481_10GBASE_T_AN_CTRL,
9556 				 1);
9557 
9558 	phy->req_line_speed = tmp_req_line_speed;
9559 
9560 	return 0;
9561 }
9562 
bnx2x_8481_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)9563 static int bnx2x_8481_config_init(struct bnx2x_phy *phy,
9564 				  struct link_params *params,
9565 				  struct link_vars *vars)
9566 {
9567 	struct bnx2x *bp = params->bp;
9568 	/* Restore normal power mode*/
9569 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
9570 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, params->port);
9571 
9572 	/* HW reset */
9573 	bnx2x_ext_phy_hw_reset(bp, params->port);
9574 	bnx2x_wait_reset_complete(bp, phy, params);
9575 
9576 	bnx2x_cl45_write(bp, phy, MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 1<<15);
9577 	return bnx2x_848xx_cmn_config_init(phy, params, vars);
9578 }
9579 
9580 #define PHY84833_CMDHDLR_WAIT 300
9581 #define PHY84833_CMDHDLR_MAX_ARGS 5
bnx2x_84833_cmd_hdlr(struct bnx2x_phy * phy,struct link_params * params,u16 fw_cmd,u16 cmd_args[])9582 static int bnx2x_84833_cmd_hdlr(struct bnx2x_phy *phy,
9583 				   struct link_params *params,
9584 		   u16 fw_cmd,
9585 		   u16 cmd_args[])
9586 {
9587 	u32 idx;
9588 	u16 val;
9589 	struct bnx2x *bp = params->bp;
9590 	/* Write CMD_OPEN_OVERRIDE to STATUS reg */
9591 	bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
9592 			MDIO_84833_CMD_HDLR_STATUS,
9593 			PHY84833_STATUS_CMD_OPEN_OVERRIDE);
9594 	for (idx = 0; idx < PHY84833_CMDHDLR_WAIT; idx++) {
9595 		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
9596 				MDIO_84833_CMD_HDLR_STATUS, &val);
9597 		if (val == PHY84833_STATUS_CMD_OPEN_FOR_CMDS)
9598 			break;
9599 		msleep(1);
9600 	}
9601 	if (idx >= PHY84833_CMDHDLR_WAIT) {
9602 		DP(NETIF_MSG_LINK, "FW cmd: FW not ready.\n");
9603 		return -EINVAL;
9604 	}
9605 
9606 	/* Prepare argument(s) and issue command */
9607 	for (idx = 0; idx < PHY84833_CMDHDLR_MAX_ARGS; idx++) {
9608 		bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
9609 				MDIO_84833_CMD_HDLR_DATA1 + idx,
9610 				cmd_args[idx]);
9611 	}
9612 	bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
9613 			MDIO_84833_CMD_HDLR_COMMAND, fw_cmd);
9614 	for (idx = 0; idx < PHY84833_CMDHDLR_WAIT; idx++) {
9615 		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
9616 				MDIO_84833_CMD_HDLR_STATUS, &val);
9617 		if ((val == PHY84833_STATUS_CMD_COMPLETE_PASS) ||
9618 			(val == PHY84833_STATUS_CMD_COMPLETE_ERROR))
9619 			break;
9620 		msleep(1);
9621 	}
9622 	if ((idx >= PHY84833_CMDHDLR_WAIT) ||
9623 		(val == PHY84833_STATUS_CMD_COMPLETE_ERROR)) {
9624 		DP(NETIF_MSG_LINK, "FW cmd failed.\n");
9625 		return -EINVAL;
9626 	}
9627 	/* Gather returning data */
9628 	for (idx = 0; idx < PHY84833_CMDHDLR_MAX_ARGS; idx++) {
9629 		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
9630 				MDIO_84833_CMD_HDLR_DATA1 + idx,
9631 				&cmd_args[idx]);
9632 	}
9633 	bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
9634 			MDIO_84833_CMD_HDLR_STATUS,
9635 			PHY84833_STATUS_CMD_CLEAR_COMPLETE);
9636 	return 0;
9637 }
9638 
9639 
bnx2x_84833_pair_swap_cfg(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)9640 static int bnx2x_84833_pair_swap_cfg(struct bnx2x_phy *phy,
9641 				   struct link_params *params,
9642 				   struct link_vars *vars)
9643 {
9644 	u32 pair_swap;
9645 	u16 data[PHY84833_CMDHDLR_MAX_ARGS];
9646 	int status;
9647 	struct bnx2x *bp = params->bp;
9648 
9649 	/* Check for configuration. */
9650 	pair_swap = REG_RD(bp, params->shmem_base +
9651 			   offsetof(struct shmem_region,
9652 			dev_info.port_hw_config[params->port].xgbt_phy_cfg)) &
9653 		PORT_HW_CFG_RJ45_PAIR_SWAP_MASK;
9654 
9655 	if (pair_swap == 0)
9656 		return 0;
9657 
9658 	/* Only the second argument is used for this command */
9659 	data[1] = (u16)pair_swap;
9660 
9661 	status = bnx2x_84833_cmd_hdlr(phy, params,
9662 		PHY84833_CMD_SET_PAIR_SWAP, data);
9663 	if (status == 0)
9664 		DP(NETIF_MSG_LINK, "Pairswap OK, val=0x%x\n", data[1]);
9665 
9666 	return status;
9667 }
9668 
bnx2x_84833_get_reset_gpios(struct bnx2x * bp,u32 shmem_base_path[],u32 chip_id)9669 static u8 bnx2x_84833_get_reset_gpios(struct bnx2x *bp,
9670 				      u32 shmem_base_path[],
9671 				      u32 chip_id)
9672 {
9673 	u32 reset_pin[2];
9674 	u32 idx;
9675 	u8 reset_gpios;
9676 	if (CHIP_IS_E3(bp)) {
9677 		/* Assume that these will be GPIOs, not EPIOs. */
9678 		for (idx = 0; idx < 2; idx++) {
9679 			/* Map config param to register bit. */
9680 			reset_pin[idx] = REG_RD(bp, shmem_base_path[idx] +
9681 				offsetof(struct shmem_region,
9682 				dev_info.port_hw_config[0].e3_cmn_pin_cfg));
9683 			reset_pin[idx] = (reset_pin[idx] &
9684 				PORT_HW_CFG_E3_PHY_RESET_MASK) >>
9685 				PORT_HW_CFG_E3_PHY_RESET_SHIFT;
9686 			reset_pin[idx] -= PIN_CFG_GPIO0_P0;
9687 			reset_pin[idx] = (1 << reset_pin[idx]);
9688 		}
9689 		reset_gpios = (u8)(reset_pin[0] | reset_pin[1]);
9690 	} else {
9691 		/* E2, look from diff place of shmem. */
9692 		for (idx = 0; idx < 2; idx++) {
9693 			reset_pin[idx] = REG_RD(bp, shmem_base_path[idx] +
9694 				offsetof(struct shmem_region,
9695 				dev_info.port_hw_config[0].default_cfg));
9696 			reset_pin[idx] &= PORT_HW_CFG_EXT_PHY_GPIO_RST_MASK;
9697 			reset_pin[idx] -= PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO0_P0;
9698 			reset_pin[idx] >>= PORT_HW_CFG_EXT_PHY_GPIO_RST_SHIFT;
9699 			reset_pin[idx] = (1 << reset_pin[idx]);
9700 		}
9701 		reset_gpios = (u8)(reset_pin[0] | reset_pin[1]);
9702 	}
9703 
9704 	return reset_gpios;
9705 }
9706 
bnx2x_84833_hw_reset_phy(struct bnx2x_phy * phy,struct link_params * params)9707 static int bnx2x_84833_hw_reset_phy(struct bnx2x_phy *phy,
9708 				struct link_params *params)
9709 {
9710 	struct bnx2x *bp = params->bp;
9711 	u8 reset_gpios;
9712 	u32 other_shmem_base_addr = REG_RD(bp, params->shmem2_base +
9713 				offsetof(struct shmem2_region,
9714 				other_shmem_base_addr));
9715 
9716 	u32 shmem_base_path[2];
9717 	shmem_base_path[0] = params->shmem_base;
9718 	shmem_base_path[1] = other_shmem_base_addr;
9719 
9720 	reset_gpios = bnx2x_84833_get_reset_gpios(bp, shmem_base_path,
9721 						  params->chip_id);
9722 
9723 	bnx2x_set_mult_gpio(bp, reset_gpios, MISC_REGISTERS_GPIO_OUTPUT_LOW);
9724 	udelay(10);
9725 	DP(NETIF_MSG_LINK, "84833 hw reset on pin values 0x%x\n",
9726 		reset_gpios);
9727 
9728 	return 0;
9729 }
9730 
9731 #define PHY84833_CONSTANT_LATENCY 1193
bnx2x_848x3_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)9732 static int bnx2x_848x3_config_init(struct bnx2x_phy *phy,
9733 				   struct link_params *params,
9734 				   struct link_vars *vars)
9735 {
9736 	struct bnx2x *bp = params->bp;
9737 	u8 port, initialize = 1;
9738 	u16 val;
9739 	u32 actual_phy_selection, cms_enable;
9740 	u16 cmd_args[PHY84833_CMDHDLR_MAX_ARGS];
9741 	int rc = 0;
9742 
9743 	msleep(1);
9744 
9745 	if (!(CHIP_IS_E1(bp)))
9746 		port = BP_PATH(bp);
9747 	else
9748 		port = params->port;
9749 
9750 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823) {
9751 		bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_3,
9752 			       MISC_REGISTERS_GPIO_OUTPUT_HIGH,
9753 			       port);
9754 	} else {
9755 		/* MDIO reset */
9756 		bnx2x_cl45_write(bp, phy,
9757 				MDIO_PMA_DEVAD,
9758 				MDIO_PMA_REG_CTRL, 0x8000);
9759 	}
9760 
9761 	bnx2x_wait_reset_complete(bp, phy, params);
9762 
9763 	/* Wait for GPHY to come out of reset */
9764 	msleep(50);
9765 	if (phy->type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) {
9766 		/*
9767 		 * BCM84823 requires that XGXS links up first @ 10G for normal
9768 		 * behavior.
9769 		 */
9770 		u16 temp;
9771 		temp = vars->line_speed;
9772 		vars->line_speed = SPEED_10000;
9773 		bnx2x_set_autoneg(&params->phy[INT_PHY], params, vars, 0);
9774 		bnx2x_program_serdes(&params->phy[INT_PHY], params, vars);
9775 		vars->line_speed = temp;
9776 	}
9777 
9778 	bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
9779 			MDIO_CTL_REG_84823_MEDIA, &val);
9780 	val &= ~(MDIO_CTL_REG_84823_MEDIA_MAC_MASK |
9781 		 MDIO_CTL_REG_84823_MEDIA_LINE_MASK |
9782 		 MDIO_CTL_REG_84823_MEDIA_COPPER_CORE_DOWN |
9783 		 MDIO_CTL_REG_84823_MEDIA_PRIORITY_MASK |
9784 		 MDIO_CTL_REG_84823_MEDIA_FIBER_1G);
9785 
9786 	if (CHIP_IS_E3(bp)) {
9787 		val &= ~(MDIO_CTL_REG_84823_MEDIA_MAC_MASK |
9788 			 MDIO_CTL_REG_84823_MEDIA_LINE_MASK);
9789 	} else {
9790 		val |= (MDIO_CTL_REG_84823_CTRL_MAC_XFI |
9791 			MDIO_CTL_REG_84823_MEDIA_LINE_XAUI_L);
9792 	}
9793 
9794 	actual_phy_selection = bnx2x_phy_selection(params);
9795 
9796 	switch (actual_phy_selection) {
9797 	case PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT:
9798 		/* Do nothing. Essentially this is like the priority copper */
9799 		break;
9800 	case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY:
9801 		val |= MDIO_CTL_REG_84823_MEDIA_PRIORITY_COPPER;
9802 		break;
9803 	case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY:
9804 		val |= MDIO_CTL_REG_84823_MEDIA_PRIORITY_FIBER;
9805 		break;
9806 	case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY:
9807 		/* Do nothing here. The first PHY won't be initialized at all */
9808 		break;
9809 	case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY:
9810 		val |= MDIO_CTL_REG_84823_MEDIA_COPPER_CORE_DOWN;
9811 		initialize = 0;
9812 		break;
9813 	}
9814 	if (params->phy[EXT_PHY2].req_line_speed == SPEED_1000)
9815 		val |= MDIO_CTL_REG_84823_MEDIA_FIBER_1G;
9816 
9817 	bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
9818 			 MDIO_CTL_REG_84823_MEDIA, val);
9819 	DP(NETIF_MSG_LINK, "Multi_phy config = 0x%x, Media control = 0x%x\n",
9820 		   params->multi_phy_config, val);
9821 
9822 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) {
9823 		bnx2x_84833_pair_swap_cfg(phy, params, vars);
9824 
9825 		/* Keep AutogrEEEn disabled. */
9826 		cmd_args[0] = 0x0;
9827 		cmd_args[1] = 0x0;
9828 		cmd_args[2] = PHY84833_CONSTANT_LATENCY + 1;
9829 		cmd_args[3] = PHY84833_CONSTANT_LATENCY;
9830 		rc = bnx2x_84833_cmd_hdlr(phy, params,
9831 			PHY84833_CMD_SET_EEE_MODE, cmd_args);
9832 		if (rc != 0)
9833 			DP(NETIF_MSG_LINK, "Cfg AutogrEEEn failed.\n");
9834 	}
9835 	if (initialize)
9836 		rc = bnx2x_848xx_cmn_config_init(phy, params, vars);
9837 	else
9838 		bnx2x_save_848xx_spirom_version(phy, bp, params->port);
9839 	/* 84833 PHY has a better feature and doesn't need to support this. */
9840 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823) {
9841 		cms_enable = REG_RD(bp, params->shmem_base +
9842 			offsetof(struct shmem_region,
9843 			dev_info.port_hw_config[params->port].default_cfg)) &
9844 			PORT_HW_CFG_ENABLE_CMS_MASK;
9845 
9846 		bnx2x_cl45_read(bp, phy, MDIO_CTL_DEVAD,
9847 				MDIO_CTL_REG_84823_USER_CTRL_REG, &val);
9848 		if (cms_enable)
9849 			val |= MDIO_CTL_REG_84823_USER_CTRL_CMS;
9850 		else
9851 			val &= ~MDIO_CTL_REG_84823_USER_CTRL_CMS;
9852 		bnx2x_cl45_write(bp, phy, MDIO_CTL_DEVAD,
9853 				 MDIO_CTL_REG_84823_USER_CTRL_REG, val);
9854 	}
9855 
9856 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) {
9857 		/* Bring PHY out of super isolate mode as the final step. */
9858 		bnx2x_cl45_read(bp, phy,
9859 				MDIO_CTL_DEVAD,
9860 				MDIO_84833_TOP_CFG_XGPHY_STRAP1, &val);
9861 		val &= ~MDIO_84833_SUPER_ISOLATE;
9862 		bnx2x_cl45_write(bp, phy,
9863 				MDIO_CTL_DEVAD,
9864 				MDIO_84833_TOP_CFG_XGPHY_STRAP1, val);
9865 	}
9866 	return rc;
9867 }
9868 
bnx2x_848xx_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)9869 static u8 bnx2x_848xx_read_status(struct bnx2x_phy *phy,
9870 				  struct link_params *params,
9871 				  struct link_vars *vars)
9872 {
9873 	struct bnx2x *bp = params->bp;
9874 	u16 val, val1, val2;
9875 	u8 link_up = 0;
9876 
9877 
9878 	/* Check 10G-BaseT link status */
9879 	/* Check PMD signal ok */
9880 	bnx2x_cl45_read(bp, phy,
9881 			MDIO_AN_DEVAD, 0xFFFA, &val1);
9882 	bnx2x_cl45_read(bp, phy,
9883 			MDIO_PMA_DEVAD, MDIO_PMA_REG_8481_PMD_SIGNAL,
9884 			&val2);
9885 	DP(NETIF_MSG_LINK, "BCM848xx: PMD_SIGNAL 1.a811 = 0x%x\n", val2);
9886 
9887 	/* Check link 10G */
9888 	if (val2 & (1<<11)) {
9889 		vars->line_speed = SPEED_10000;
9890 		vars->duplex = DUPLEX_FULL;
9891 		link_up = 1;
9892 		bnx2x_ext_phy_10G_an_resolve(bp, phy, vars);
9893 	} else { /* Check Legacy speed link */
9894 		u16 legacy_status, legacy_speed;
9895 
9896 		/* Enable expansion register 0x42 (Operation mode status) */
9897 		bnx2x_cl45_write(bp, phy,
9898 				 MDIO_AN_DEVAD,
9899 				 MDIO_AN_REG_8481_EXPANSION_REG_ACCESS, 0xf42);
9900 
9901 		/* Get legacy speed operation status */
9902 		bnx2x_cl45_read(bp, phy,
9903 				MDIO_AN_DEVAD,
9904 				MDIO_AN_REG_8481_EXPANSION_REG_RD_RW,
9905 				&legacy_status);
9906 
9907 		DP(NETIF_MSG_LINK, "Legacy speed status = 0x%x\n",
9908 		   legacy_status);
9909 		link_up = ((legacy_status & (1<<11)) == (1<<11));
9910 		if (link_up) {
9911 			legacy_speed = (legacy_status & (3<<9));
9912 			if (legacy_speed == (0<<9))
9913 				vars->line_speed = SPEED_10;
9914 			else if (legacy_speed == (1<<9))
9915 				vars->line_speed = SPEED_100;
9916 			else if (legacy_speed == (2<<9))
9917 				vars->line_speed = SPEED_1000;
9918 			else /* Should not happen */
9919 				vars->line_speed = 0;
9920 
9921 			if (legacy_status & (1<<8))
9922 				vars->duplex = DUPLEX_FULL;
9923 			else
9924 				vars->duplex = DUPLEX_HALF;
9925 
9926 			DP(NETIF_MSG_LINK,
9927 			   "Link is up in %dMbps, is_duplex_full= %d\n",
9928 			   vars->line_speed,
9929 			   (vars->duplex == DUPLEX_FULL));
9930 			/* Check legacy speed AN resolution */
9931 			bnx2x_cl45_read(bp, phy,
9932 					MDIO_AN_DEVAD,
9933 					MDIO_AN_REG_8481_LEGACY_MII_STATUS,
9934 					&val);
9935 			if (val & (1<<5))
9936 				vars->link_status |=
9937 					LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
9938 			bnx2x_cl45_read(bp, phy,
9939 					MDIO_AN_DEVAD,
9940 					MDIO_AN_REG_8481_LEGACY_AN_EXPANSION,
9941 					&val);
9942 			if ((val & (1<<0)) == 0)
9943 				vars->link_status |=
9944 					LINK_STATUS_PARALLEL_DETECTION_USED;
9945 		}
9946 	}
9947 	if (link_up) {
9948 		DP(NETIF_MSG_LINK, "BCM84823: link speed is %d\n",
9949 			   vars->line_speed);
9950 		bnx2x_ext_phy_resolve_fc(phy, params, vars);
9951 	}
9952 
9953 	return link_up;
9954 }
9955 
9956 
bnx2x_848xx_format_ver(u32 raw_ver,u8 * str,u16 * len)9957 static int bnx2x_848xx_format_ver(u32 raw_ver, u8 *str, u16 *len)
9958 {
9959 	int status = 0;
9960 	u32 spirom_ver;
9961 	spirom_ver = ((raw_ver & 0xF80) >> 7) << 16 | (raw_ver & 0x7F);
9962 	status = bnx2x_format_ver(spirom_ver, str, len);
9963 	return status;
9964 }
9965 
bnx2x_8481_hw_reset(struct bnx2x_phy * phy,struct link_params * params)9966 static void bnx2x_8481_hw_reset(struct bnx2x_phy *phy,
9967 				struct link_params *params)
9968 {
9969 	bnx2x_set_gpio(params->bp, MISC_REGISTERS_GPIO_1,
9970 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, 0);
9971 	bnx2x_set_gpio(params->bp, MISC_REGISTERS_GPIO_1,
9972 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, 1);
9973 }
9974 
bnx2x_8481_link_reset(struct bnx2x_phy * phy,struct link_params * params)9975 static void bnx2x_8481_link_reset(struct bnx2x_phy *phy,
9976 					struct link_params *params)
9977 {
9978 	bnx2x_cl45_write(params->bp, phy,
9979 			 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, 0x0000);
9980 	bnx2x_cl45_write(params->bp, phy,
9981 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 1);
9982 }
9983 
bnx2x_848x3_link_reset(struct bnx2x_phy * phy,struct link_params * params)9984 static void bnx2x_848x3_link_reset(struct bnx2x_phy *phy,
9985 				   struct link_params *params)
9986 {
9987 	struct bnx2x *bp = params->bp;
9988 	u8 port;
9989 	u16 val16;
9990 
9991 	if (!(CHIP_IS_E1(bp)))
9992 		port = BP_PATH(bp);
9993 	else
9994 		port = params->port;
9995 
9996 	if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823) {
9997 		bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_3,
9998 			       MISC_REGISTERS_GPIO_OUTPUT_LOW,
9999 			       port);
10000 	} else {
10001 		bnx2x_cl45_read(bp, phy,
10002 				MDIO_CTL_DEVAD,
10003 				MDIO_84833_TOP_CFG_XGPHY_STRAP1, &val16);
10004 		val16 |= MDIO_84833_SUPER_ISOLATE;
10005 		bnx2x_cl45_write(bp, phy,
10006 				 MDIO_CTL_DEVAD,
10007 				 MDIO_84833_TOP_CFG_XGPHY_STRAP1, val16);
10008 	}
10009 }
10010 
bnx2x_848xx_set_link_led(struct bnx2x_phy * phy,struct link_params * params,u8 mode)10011 static void bnx2x_848xx_set_link_led(struct bnx2x_phy *phy,
10012 				     struct link_params *params, u8 mode)
10013 {
10014 	struct bnx2x *bp = params->bp;
10015 	u16 val;
10016 	u8 port;
10017 
10018 	if (!(CHIP_IS_E1(bp)))
10019 		port = BP_PATH(bp);
10020 	else
10021 		port = params->port;
10022 
10023 	switch (mode) {
10024 	case LED_MODE_OFF:
10025 
10026 		DP(NETIF_MSG_LINK, "Port 0x%x: LED MODE OFF\n", port);
10027 
10028 		if ((params->hw_led_mode << SHARED_HW_CFG_LED_MODE_SHIFT) ==
10029 		    SHARED_HW_CFG_LED_EXTPHY1) {
10030 
10031 			/* Set LED masks */
10032 			bnx2x_cl45_write(bp, phy,
10033 					MDIO_PMA_DEVAD,
10034 					MDIO_PMA_REG_8481_LED1_MASK,
10035 					0x0);
10036 
10037 			bnx2x_cl45_write(bp, phy,
10038 					MDIO_PMA_DEVAD,
10039 					MDIO_PMA_REG_8481_LED2_MASK,
10040 					0x0);
10041 
10042 			bnx2x_cl45_write(bp, phy,
10043 					MDIO_PMA_DEVAD,
10044 					MDIO_PMA_REG_8481_LED3_MASK,
10045 					0x0);
10046 
10047 			bnx2x_cl45_write(bp, phy,
10048 					MDIO_PMA_DEVAD,
10049 					MDIO_PMA_REG_8481_LED5_MASK,
10050 					0x0);
10051 
10052 		} else {
10053 			bnx2x_cl45_write(bp, phy,
10054 					 MDIO_PMA_DEVAD,
10055 					 MDIO_PMA_REG_8481_LED1_MASK,
10056 					 0x0);
10057 		}
10058 		break;
10059 	case LED_MODE_FRONT_PANEL_OFF:
10060 
10061 		DP(NETIF_MSG_LINK, "Port 0x%x: LED MODE FRONT PANEL OFF\n",
10062 		   port);
10063 
10064 		if ((params->hw_led_mode << SHARED_HW_CFG_LED_MODE_SHIFT) ==
10065 		    SHARED_HW_CFG_LED_EXTPHY1) {
10066 
10067 			/* Set LED masks */
10068 			bnx2x_cl45_write(bp, phy,
10069 					 MDIO_PMA_DEVAD,
10070 					 MDIO_PMA_REG_8481_LED1_MASK,
10071 					 0x0);
10072 
10073 			bnx2x_cl45_write(bp, phy,
10074 					 MDIO_PMA_DEVAD,
10075 					 MDIO_PMA_REG_8481_LED2_MASK,
10076 					 0x0);
10077 
10078 			bnx2x_cl45_write(bp, phy,
10079 					 MDIO_PMA_DEVAD,
10080 					 MDIO_PMA_REG_8481_LED3_MASK,
10081 					 0x0);
10082 
10083 			bnx2x_cl45_write(bp, phy,
10084 					 MDIO_PMA_DEVAD,
10085 					 MDIO_PMA_REG_8481_LED5_MASK,
10086 					 0x20);
10087 
10088 		} else {
10089 			bnx2x_cl45_write(bp, phy,
10090 					 MDIO_PMA_DEVAD,
10091 					 MDIO_PMA_REG_8481_LED1_MASK,
10092 					 0x0);
10093 		}
10094 		break;
10095 	case LED_MODE_ON:
10096 
10097 		DP(NETIF_MSG_LINK, "Port 0x%x: LED MODE ON\n", port);
10098 
10099 		if ((params->hw_led_mode << SHARED_HW_CFG_LED_MODE_SHIFT) ==
10100 		    SHARED_HW_CFG_LED_EXTPHY1) {
10101 			/* Set control reg */
10102 			bnx2x_cl45_read(bp, phy,
10103 					MDIO_PMA_DEVAD,
10104 					MDIO_PMA_REG_8481_LINK_SIGNAL,
10105 					&val);
10106 			val &= 0x8000;
10107 			val |= 0x2492;
10108 
10109 			bnx2x_cl45_write(bp, phy,
10110 					 MDIO_PMA_DEVAD,
10111 					 MDIO_PMA_REG_8481_LINK_SIGNAL,
10112 					 val);
10113 
10114 			/* Set LED masks */
10115 			bnx2x_cl45_write(bp, phy,
10116 					 MDIO_PMA_DEVAD,
10117 					 MDIO_PMA_REG_8481_LED1_MASK,
10118 					 0x0);
10119 
10120 			bnx2x_cl45_write(bp, phy,
10121 					 MDIO_PMA_DEVAD,
10122 					 MDIO_PMA_REG_8481_LED2_MASK,
10123 					 0x20);
10124 
10125 			bnx2x_cl45_write(bp, phy,
10126 					 MDIO_PMA_DEVAD,
10127 					 MDIO_PMA_REG_8481_LED3_MASK,
10128 					 0x20);
10129 
10130 			bnx2x_cl45_write(bp, phy,
10131 					 MDIO_PMA_DEVAD,
10132 					 MDIO_PMA_REG_8481_LED5_MASK,
10133 					 0x0);
10134 		} else {
10135 			bnx2x_cl45_write(bp, phy,
10136 					 MDIO_PMA_DEVAD,
10137 					 MDIO_PMA_REG_8481_LED1_MASK,
10138 					 0x20);
10139 		}
10140 		break;
10141 
10142 	case LED_MODE_OPER:
10143 
10144 		DP(NETIF_MSG_LINK, "Port 0x%x: LED MODE OPER\n", port);
10145 
10146 		if ((params->hw_led_mode << SHARED_HW_CFG_LED_MODE_SHIFT) ==
10147 		    SHARED_HW_CFG_LED_EXTPHY1) {
10148 
10149 			/* Set control reg */
10150 			bnx2x_cl45_read(bp, phy,
10151 					MDIO_PMA_DEVAD,
10152 					MDIO_PMA_REG_8481_LINK_SIGNAL,
10153 					&val);
10154 
10155 			if (!((val &
10156 			       MDIO_PMA_REG_8481_LINK_SIGNAL_LED4_ENABLE_MASK)
10157 			  >> MDIO_PMA_REG_8481_LINK_SIGNAL_LED4_ENABLE_SHIFT)) {
10158 				DP(NETIF_MSG_LINK, "Setting LINK_SIGNAL\n");
10159 				bnx2x_cl45_write(bp, phy,
10160 						 MDIO_PMA_DEVAD,
10161 						 MDIO_PMA_REG_8481_LINK_SIGNAL,
10162 						 0xa492);
10163 			}
10164 
10165 			/* Set LED masks */
10166 			bnx2x_cl45_write(bp, phy,
10167 					 MDIO_PMA_DEVAD,
10168 					 MDIO_PMA_REG_8481_LED1_MASK,
10169 					 0x10);
10170 
10171 			bnx2x_cl45_write(bp, phy,
10172 					 MDIO_PMA_DEVAD,
10173 					 MDIO_PMA_REG_8481_LED2_MASK,
10174 					 0x80);
10175 
10176 			bnx2x_cl45_write(bp, phy,
10177 					 MDIO_PMA_DEVAD,
10178 					 MDIO_PMA_REG_8481_LED3_MASK,
10179 					 0x98);
10180 
10181 			bnx2x_cl45_write(bp, phy,
10182 					 MDIO_PMA_DEVAD,
10183 					 MDIO_PMA_REG_8481_LED5_MASK,
10184 					 0x40);
10185 
10186 		} else {
10187 			bnx2x_cl45_write(bp, phy,
10188 					 MDIO_PMA_DEVAD,
10189 					 MDIO_PMA_REG_8481_LED1_MASK,
10190 					 0x80);
10191 
10192 			/* Tell LED3 to blink on source */
10193 			bnx2x_cl45_read(bp, phy,
10194 					MDIO_PMA_DEVAD,
10195 					MDIO_PMA_REG_8481_LINK_SIGNAL,
10196 					&val);
10197 			val &= ~(7<<6);
10198 			val |= (1<<6); /* A83B[8:6]= 1 */
10199 			bnx2x_cl45_write(bp, phy,
10200 					 MDIO_PMA_DEVAD,
10201 					 MDIO_PMA_REG_8481_LINK_SIGNAL,
10202 					 val);
10203 		}
10204 		break;
10205 	}
10206 
10207 	/*
10208 	 * This is a workaround for E3+84833 until autoneg
10209 	 * restart is fixed in f/w
10210 	 */
10211 	if (CHIP_IS_E3(bp)) {
10212 		bnx2x_cl45_read(bp, phy, MDIO_WC_DEVAD,
10213 				MDIO_WC_REG_GP2_STATUS_GP_2_1, &val);
10214 	}
10215 }
10216 
10217 /******************************************************************/
10218 /*			54618SE PHY SECTION			  */
10219 /******************************************************************/
bnx2x_54618se_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)10220 static int bnx2x_54618se_config_init(struct bnx2x_phy *phy,
10221 					       struct link_params *params,
10222 					       struct link_vars *vars)
10223 {
10224 	struct bnx2x *bp = params->bp;
10225 	u8 port;
10226 	u16 autoneg_val, an_1000_val, an_10_100_val, fc_val, temp;
10227 	u32 cfg_pin;
10228 
10229 	DP(NETIF_MSG_LINK, "54618SE cfg init\n");
10230 	usleep_range(1000, 1000);
10231 
10232 	/*
10233 	 * This works with E3 only, no need to check the chip
10234 	 * before determining the port.
10235 	 */
10236 	port = params->port;
10237 
10238 	cfg_pin = (REG_RD(bp, params->shmem_base +
10239 			offsetof(struct shmem_region,
10240 			dev_info.port_hw_config[port].e3_cmn_pin_cfg)) &
10241 			PORT_HW_CFG_E3_PHY_RESET_MASK) >>
10242 			PORT_HW_CFG_E3_PHY_RESET_SHIFT;
10243 
10244 	/* Drive pin high to bring the GPHY out of reset. */
10245 	bnx2x_set_cfg_pin(bp, cfg_pin, 1);
10246 
10247 	/* wait for GPHY to reset */
10248 	msleep(50);
10249 
10250 	/* reset phy */
10251 	bnx2x_cl22_write(bp, phy,
10252 			 MDIO_PMA_REG_CTRL, 0x8000);
10253 	bnx2x_wait_reset_complete(bp, phy, params);
10254 
10255 	/*wait for GPHY to reset */
10256 	msleep(50);
10257 
10258 	/* Configure LED4: set to INTR (0x6). */
10259 	/* Accessing shadow register 0xe. */
10260 	bnx2x_cl22_write(bp, phy,
10261 			MDIO_REG_GPHY_SHADOW,
10262 			MDIO_REG_GPHY_SHADOW_LED_SEL2);
10263 	bnx2x_cl22_read(bp, phy,
10264 			MDIO_REG_GPHY_SHADOW,
10265 			&temp);
10266 	temp &= ~(0xf << 4);
10267 	temp |= (0x6 << 4);
10268 	bnx2x_cl22_write(bp, phy,
10269 			MDIO_REG_GPHY_SHADOW,
10270 			MDIO_REG_GPHY_SHADOW_WR_ENA | temp);
10271 	/* Configure INTR based on link status change. */
10272 	bnx2x_cl22_write(bp, phy,
10273 			MDIO_REG_INTR_MASK,
10274 			~MDIO_REG_INTR_MASK_LINK_STATUS);
10275 
10276 	/* Flip the signal detect polarity (set 0x1c.0x1e[8]). */
10277 	bnx2x_cl22_write(bp, phy,
10278 			MDIO_REG_GPHY_SHADOW,
10279 			MDIO_REG_GPHY_SHADOW_AUTO_DET_MED);
10280 	bnx2x_cl22_read(bp, phy,
10281 			MDIO_REG_GPHY_SHADOW,
10282 			&temp);
10283 	temp |= MDIO_REG_GPHY_SHADOW_INVERT_FIB_SD;
10284 	bnx2x_cl22_write(bp, phy,
10285 			MDIO_REG_GPHY_SHADOW,
10286 			MDIO_REG_GPHY_SHADOW_WR_ENA | temp);
10287 
10288 	/* Set up fc */
10289 	/* Please refer to Table 28B-3 of 802.3ab-1999 spec. */
10290 	bnx2x_calc_ieee_aneg_adv(phy, params, &vars->ieee_fc);
10291 	fc_val = 0;
10292 	if ((vars->ieee_fc & MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC) ==
10293 			MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_ASYMMETRIC)
10294 		fc_val |= MDIO_AN_REG_ADV_PAUSE_ASYMMETRIC;
10295 
10296 	if ((vars->ieee_fc & MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH) ==
10297 			MDIO_COMBO_IEEE0_AUTO_NEG_ADV_PAUSE_BOTH)
10298 		fc_val |= MDIO_AN_REG_ADV_PAUSE_PAUSE;
10299 
10300 	/* read all advertisement */
10301 	bnx2x_cl22_read(bp, phy,
10302 			0x09,
10303 			&an_1000_val);
10304 
10305 	bnx2x_cl22_read(bp, phy,
10306 			0x04,
10307 			&an_10_100_val);
10308 
10309 	bnx2x_cl22_read(bp, phy,
10310 			MDIO_PMA_REG_CTRL,
10311 			&autoneg_val);
10312 
10313 	/* Disable forced speed */
10314 	autoneg_val &= ~((1<<6) | (1<<8) | (1<<9) | (1<<12) | (1<<13));
10315 	an_10_100_val &= ~((1<<5) | (1<<6) | (1<<7) | (1<<8) | (1<<10) |
10316 			   (1<<11));
10317 
10318 	if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
10319 			(phy->speed_cap_mask &
10320 			PORT_HW_CFG_SPEED_CAPABILITY_D0_1G)) ||
10321 			(phy->req_line_speed == SPEED_1000)) {
10322 		an_1000_val |= (1<<8);
10323 		autoneg_val |= (1<<9 | 1<<12);
10324 		if (phy->req_duplex == DUPLEX_FULL)
10325 			an_1000_val |= (1<<9);
10326 		DP(NETIF_MSG_LINK, "Advertising 1G\n");
10327 	} else
10328 		an_1000_val &= ~((1<<8) | (1<<9));
10329 
10330 	bnx2x_cl22_write(bp, phy,
10331 			0x09,
10332 			an_1000_val);
10333 	bnx2x_cl22_read(bp, phy,
10334 			0x09,
10335 			&an_1000_val);
10336 
10337 	/* set 100 speed advertisement */
10338 	if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
10339 			(phy->speed_cap_mask &
10340 			(PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_FULL |
10341 			PORT_HW_CFG_SPEED_CAPABILITY_D0_100M_HALF)))) {
10342 		an_10_100_val |= (1<<7);
10343 		/* Enable autoneg and restart autoneg for legacy speeds */
10344 		autoneg_val |= (1<<9 | 1<<12);
10345 
10346 		if (phy->req_duplex == DUPLEX_FULL)
10347 			an_10_100_val |= (1<<8);
10348 		DP(NETIF_MSG_LINK, "Advertising 100M\n");
10349 	}
10350 
10351 	/* set 10 speed advertisement */
10352 	if (((phy->req_line_speed == SPEED_AUTO_NEG) &&
10353 			(phy->speed_cap_mask &
10354 			(PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_FULL |
10355 			PORT_HW_CFG_SPEED_CAPABILITY_D0_10M_HALF)))) {
10356 		an_10_100_val |= (1<<5);
10357 		autoneg_val |= (1<<9 | 1<<12);
10358 		if (phy->req_duplex == DUPLEX_FULL)
10359 			an_10_100_val |= (1<<6);
10360 		DP(NETIF_MSG_LINK, "Advertising 10M\n");
10361 	}
10362 
10363 	/* Only 10/100 are allowed to work in FORCE mode */
10364 	if (phy->req_line_speed == SPEED_100) {
10365 		autoneg_val |= (1<<13);
10366 		/* Enabled AUTO-MDIX when autoneg is disabled */
10367 		bnx2x_cl22_write(bp, phy,
10368 				0x18,
10369 				(1<<15 | 1<<9 | 7<<0));
10370 		DP(NETIF_MSG_LINK, "Setting 100M force\n");
10371 	}
10372 	if (phy->req_line_speed == SPEED_10) {
10373 		/* Enabled AUTO-MDIX when autoneg is disabled */
10374 		bnx2x_cl22_write(bp, phy,
10375 				0x18,
10376 				(1<<15 | 1<<9 | 7<<0));
10377 		DP(NETIF_MSG_LINK, "Setting 10M force\n");
10378 	}
10379 
10380 	/* Check if we should turn on Auto-GrEEEn */
10381 	bnx2x_cl22_read(bp, phy, MDIO_REG_GPHY_PHYID_LSB, &temp);
10382 	if (temp == MDIO_REG_GPHY_ID_54618SE) {
10383 		if (params->feature_config_flags &
10384 		    FEATURE_CONFIG_AUTOGREEEN_ENABLED) {
10385 			temp = 6;
10386 			DP(NETIF_MSG_LINK, "Enabling Auto-GrEEEn\n");
10387 		} else {
10388 			temp = 0;
10389 			DP(NETIF_MSG_LINK, "Disabling Auto-GrEEEn\n");
10390 		}
10391 		bnx2x_cl22_write(bp, phy,
10392 				 MDIO_REG_GPHY_CL45_ADDR_REG, MDIO_AN_DEVAD);
10393 		bnx2x_cl22_write(bp, phy,
10394 				 MDIO_REG_GPHY_CL45_DATA_REG,
10395 				 MDIO_REG_GPHY_EEE_ADV);
10396 		bnx2x_cl22_write(bp, phy,
10397 				 MDIO_REG_GPHY_CL45_ADDR_REG,
10398 				 (0x1 << 14) | MDIO_AN_DEVAD);
10399 		bnx2x_cl22_write(bp, phy,
10400 				 MDIO_REG_GPHY_CL45_DATA_REG,
10401 				 temp);
10402 	}
10403 
10404 	bnx2x_cl22_write(bp, phy,
10405 			0x04,
10406 			an_10_100_val | fc_val);
10407 
10408 	if (phy->req_duplex == DUPLEX_FULL)
10409 		autoneg_val |= (1<<8);
10410 
10411 	bnx2x_cl22_write(bp, phy,
10412 			MDIO_PMA_REG_CTRL, autoneg_val);
10413 
10414 	return 0;
10415 }
10416 
10417 
bnx2x_5461x_set_link_led(struct bnx2x_phy * phy,struct link_params * params,u8 mode)10418 static void bnx2x_5461x_set_link_led(struct bnx2x_phy *phy,
10419 				       struct link_params *params, u8 mode)
10420 {
10421 	struct bnx2x *bp = params->bp;
10422 	u16 temp;
10423 
10424 	bnx2x_cl22_write(bp, phy,
10425 		MDIO_REG_GPHY_SHADOW,
10426 		MDIO_REG_GPHY_SHADOW_LED_SEL1);
10427 	bnx2x_cl22_read(bp, phy,
10428 		MDIO_REG_GPHY_SHADOW,
10429 		&temp);
10430 	temp &= 0xff00;
10431 
10432 	DP(NETIF_MSG_LINK, "54618x set link led (mode=%x)\n", mode);
10433 	switch (mode) {
10434 	case LED_MODE_FRONT_PANEL_OFF:
10435 	case LED_MODE_OFF:
10436 		temp |= 0x00ee;
10437 		break;
10438 	case LED_MODE_OPER:
10439 		temp |= 0x0001;
10440 		break;
10441 	case LED_MODE_ON:
10442 		temp |= 0x00ff;
10443 		break;
10444 	default:
10445 		break;
10446 	}
10447 	bnx2x_cl22_write(bp, phy,
10448 		MDIO_REG_GPHY_SHADOW,
10449 		MDIO_REG_GPHY_SHADOW_WR_ENA | temp);
10450 	return;
10451 }
10452 
10453 
bnx2x_54618se_link_reset(struct bnx2x_phy * phy,struct link_params * params)10454 static void bnx2x_54618se_link_reset(struct bnx2x_phy *phy,
10455 				     struct link_params *params)
10456 {
10457 	struct bnx2x *bp = params->bp;
10458 	u32 cfg_pin;
10459 	u8 port;
10460 
10461 	/*
10462 	 * In case of no EPIO routed to reset the GPHY, put it
10463 	 * in low power mode.
10464 	 */
10465 	bnx2x_cl22_write(bp, phy, MDIO_PMA_REG_CTRL, 0x800);
10466 	/*
10467 	 * This works with E3 only, no need to check the chip
10468 	 * before determining the port.
10469 	 */
10470 	port = params->port;
10471 	cfg_pin = (REG_RD(bp, params->shmem_base +
10472 			offsetof(struct shmem_region,
10473 			dev_info.port_hw_config[port].e3_cmn_pin_cfg)) &
10474 			PORT_HW_CFG_E3_PHY_RESET_MASK) >>
10475 			PORT_HW_CFG_E3_PHY_RESET_SHIFT;
10476 
10477 	/* Drive pin low to put GPHY in reset. */
10478 	bnx2x_set_cfg_pin(bp, cfg_pin, 0);
10479 }
10480 
bnx2x_54618se_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)10481 static u8 bnx2x_54618se_read_status(struct bnx2x_phy *phy,
10482 				    struct link_params *params,
10483 				    struct link_vars *vars)
10484 {
10485 	struct bnx2x *bp = params->bp;
10486 	u16 val;
10487 	u8 link_up = 0;
10488 	u16 legacy_status, legacy_speed;
10489 
10490 	/* Get speed operation status */
10491 	bnx2x_cl22_read(bp, phy,
10492 			0x19,
10493 			&legacy_status);
10494 	DP(NETIF_MSG_LINK, "54618SE read_status: 0x%x\n", legacy_status);
10495 
10496 	/* Read status to clear the PHY interrupt. */
10497 	bnx2x_cl22_read(bp, phy,
10498 			MDIO_REG_INTR_STATUS,
10499 			&val);
10500 
10501 	link_up = ((legacy_status & (1<<2)) == (1<<2));
10502 
10503 	if (link_up) {
10504 		legacy_speed = (legacy_status & (7<<8));
10505 		if (legacy_speed == (7<<8)) {
10506 			vars->line_speed = SPEED_1000;
10507 			vars->duplex = DUPLEX_FULL;
10508 		} else if (legacy_speed == (6<<8)) {
10509 			vars->line_speed = SPEED_1000;
10510 			vars->duplex = DUPLEX_HALF;
10511 		} else if (legacy_speed == (5<<8)) {
10512 			vars->line_speed = SPEED_100;
10513 			vars->duplex = DUPLEX_FULL;
10514 		}
10515 		/* Omitting 100Base-T4 for now */
10516 		else if (legacy_speed == (3<<8)) {
10517 			vars->line_speed = SPEED_100;
10518 			vars->duplex = DUPLEX_HALF;
10519 		} else if (legacy_speed == (2<<8)) {
10520 			vars->line_speed = SPEED_10;
10521 			vars->duplex = DUPLEX_FULL;
10522 		} else if (legacy_speed == (1<<8)) {
10523 			vars->line_speed = SPEED_10;
10524 			vars->duplex = DUPLEX_HALF;
10525 		} else /* Should not happen */
10526 			vars->line_speed = 0;
10527 
10528 		DP(NETIF_MSG_LINK,
10529 		   "Link is up in %dMbps, is_duplex_full= %d\n",
10530 		   vars->line_speed,
10531 		   (vars->duplex == DUPLEX_FULL));
10532 
10533 		/* Check legacy speed AN resolution */
10534 		bnx2x_cl22_read(bp, phy,
10535 				0x01,
10536 				&val);
10537 		if (val & (1<<5))
10538 			vars->link_status |=
10539 				LINK_STATUS_AUTO_NEGOTIATE_COMPLETE;
10540 		bnx2x_cl22_read(bp, phy,
10541 				0x06,
10542 				&val);
10543 		if ((val & (1<<0)) == 0)
10544 			vars->link_status |=
10545 				LINK_STATUS_PARALLEL_DETECTION_USED;
10546 
10547 		DP(NETIF_MSG_LINK, "BCM54618SE: link speed is %d\n",
10548 			   vars->line_speed);
10549 
10550 		/* Report whether EEE is resolved. */
10551 		bnx2x_cl22_read(bp, phy, MDIO_REG_GPHY_PHYID_LSB, &val);
10552 		if (val == MDIO_REG_GPHY_ID_54618SE) {
10553 			if (vars->link_status &
10554 			    LINK_STATUS_AUTO_NEGOTIATE_COMPLETE)
10555 				val = 0;
10556 			else {
10557 				bnx2x_cl22_write(bp, phy,
10558 					MDIO_REG_GPHY_CL45_ADDR_REG,
10559 					MDIO_AN_DEVAD);
10560 				bnx2x_cl22_write(bp, phy,
10561 					MDIO_REG_GPHY_CL45_DATA_REG,
10562 					MDIO_REG_GPHY_EEE_RESOLVED);
10563 				bnx2x_cl22_write(bp, phy,
10564 					MDIO_REG_GPHY_CL45_ADDR_REG,
10565 					(0x1 << 14) | MDIO_AN_DEVAD);
10566 				bnx2x_cl22_read(bp, phy,
10567 					MDIO_REG_GPHY_CL45_DATA_REG,
10568 					&val);
10569 			}
10570 			DP(NETIF_MSG_LINK, "EEE resolution: 0x%x\n", val);
10571 		}
10572 
10573 		bnx2x_ext_phy_resolve_fc(phy, params, vars);
10574 	}
10575 	return link_up;
10576 }
10577 
bnx2x_54618se_config_loopback(struct bnx2x_phy * phy,struct link_params * params)10578 static void bnx2x_54618se_config_loopback(struct bnx2x_phy *phy,
10579 					  struct link_params *params)
10580 {
10581 	struct bnx2x *bp = params->bp;
10582 	u16 val;
10583 	u32 umac_base = params->port ? GRCBASE_UMAC1 : GRCBASE_UMAC0;
10584 
10585 	DP(NETIF_MSG_LINK, "2PMA/PMD ext_phy_loopback: 54618se\n");
10586 
10587 	/* Enable master/slave manual mmode and set to master */
10588 	/* mii write 9 [bits set 11 12] */
10589 	bnx2x_cl22_write(bp, phy, 0x09, 3<<11);
10590 
10591 	/* forced 1G and disable autoneg */
10592 	/* set val [mii read 0] */
10593 	/* set val [expr $val & [bits clear 6 12 13]] */
10594 	/* set val [expr $val | [bits set 6 8]] */
10595 	/* mii write 0 $val */
10596 	bnx2x_cl22_read(bp, phy, 0x00, &val);
10597 	val &= ~((1<<6) | (1<<12) | (1<<13));
10598 	val |= (1<<6) | (1<<8);
10599 	bnx2x_cl22_write(bp, phy, 0x00, val);
10600 
10601 	/* Set external loopback and Tx using 6dB coding */
10602 	/* mii write 0x18 7 */
10603 	/* set val [mii read 0x18] */
10604 	/* mii write 0x18 [expr $val | [bits set 10 15]] */
10605 	bnx2x_cl22_write(bp, phy, 0x18, 7);
10606 	bnx2x_cl22_read(bp, phy, 0x18, &val);
10607 	bnx2x_cl22_write(bp, phy, 0x18, val | (1<<10) | (1<<15));
10608 
10609 	/* This register opens the gate for the UMAC despite its name */
10610 	REG_WR(bp, NIG_REG_EGRESS_EMAC0_PORT + params->port*4, 1);
10611 
10612 	/*
10613 	 * Maximum Frame Length (RW). Defines a 14-Bit maximum frame
10614 	 * length used by the MAC receive logic to check frames.
10615 	 */
10616 	REG_WR(bp, umac_base + UMAC_REG_MAXFR, 0x2710);
10617 }
10618 
10619 /******************************************************************/
10620 /*			SFX7101 PHY SECTION			  */
10621 /******************************************************************/
bnx2x_7101_config_loopback(struct bnx2x_phy * phy,struct link_params * params)10622 static void bnx2x_7101_config_loopback(struct bnx2x_phy *phy,
10623 				       struct link_params *params)
10624 {
10625 	struct bnx2x *bp = params->bp;
10626 	/* SFX7101_XGXS_TEST1 */
10627 	bnx2x_cl45_write(bp, phy,
10628 			 MDIO_XS_DEVAD, MDIO_XS_SFX7101_XGXS_TEST1, 0x100);
10629 }
10630 
bnx2x_7101_config_init(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)10631 static int bnx2x_7101_config_init(struct bnx2x_phy *phy,
10632 				  struct link_params *params,
10633 				  struct link_vars *vars)
10634 {
10635 	u16 fw_ver1, fw_ver2, val;
10636 	struct bnx2x *bp = params->bp;
10637 	DP(NETIF_MSG_LINK, "Setting the SFX7101 LASI indication\n");
10638 
10639 	/* Restore normal power mode*/
10640 	bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
10641 		       MISC_REGISTERS_GPIO_OUTPUT_HIGH, params->port);
10642 	/* HW reset */
10643 	bnx2x_ext_phy_hw_reset(bp, params->port);
10644 	bnx2x_wait_reset_complete(bp, phy, params);
10645 
10646 	bnx2x_cl45_write(bp, phy,
10647 			 MDIO_PMA_DEVAD, MDIO_PMA_LASI_CTRL, 0x1);
10648 	DP(NETIF_MSG_LINK, "Setting the SFX7101 LED to blink on traffic\n");
10649 	bnx2x_cl45_write(bp, phy,
10650 			 MDIO_PMA_DEVAD, MDIO_PMA_REG_7107_LED_CNTL, (1<<3));
10651 
10652 	bnx2x_ext_phy_set_pause(params, phy, vars);
10653 	/* Restart autoneg */
10654 	bnx2x_cl45_read(bp, phy,
10655 			MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, &val);
10656 	val |= 0x200;
10657 	bnx2x_cl45_write(bp, phy,
10658 			 MDIO_AN_DEVAD, MDIO_AN_REG_CTRL, val);
10659 
10660 	/* Save spirom version */
10661 	bnx2x_cl45_read(bp, phy,
10662 			MDIO_PMA_DEVAD, MDIO_PMA_REG_7101_VER1, &fw_ver1);
10663 
10664 	bnx2x_cl45_read(bp, phy,
10665 			MDIO_PMA_DEVAD, MDIO_PMA_REG_7101_VER2, &fw_ver2);
10666 	bnx2x_save_spirom_version(bp, params->port,
10667 				  (u32)(fw_ver1<<16 | fw_ver2), phy->ver_addr);
10668 	return 0;
10669 }
10670 
bnx2x_7101_read_status(struct bnx2x_phy * phy,struct link_params * params,struct link_vars * vars)10671 static u8 bnx2x_7101_read_status(struct bnx2x_phy *phy,
10672 				 struct link_params *params,
10673 				 struct link_vars *vars)
10674 {
10675 	struct bnx2x *bp = params->bp;
10676 	u8 link_up;
10677 	u16 val1, val2;
10678 	bnx2x_cl45_read(bp, phy,
10679 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val2);
10680 	bnx2x_cl45_read(bp, phy,
10681 			MDIO_PMA_DEVAD, MDIO_PMA_LASI_STAT, &val1);
10682 	DP(NETIF_MSG_LINK, "10G-base-T LASI status 0x%x->0x%x\n",
10683 		   val2, val1);
10684 	bnx2x_cl45_read(bp, phy,
10685 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val2);
10686 	bnx2x_cl45_read(bp, phy,
10687 			MDIO_PMA_DEVAD, MDIO_PMA_REG_STATUS, &val1);
10688 	DP(NETIF_MSG_LINK, "10G-base-T PMA status 0x%x->0x%x\n",
10689 		   val2, val1);
10690 	link_up = ((val1 & 4) == 4);
10691 	/* if link is up print the AN outcome of the SFX7101 PHY */
10692 	if (link_up) {
10693 		bnx2x_cl45_read(bp, phy,
10694 				MDIO_AN_DEVAD, MDIO_AN_REG_MASTER_STATUS,
10695 				&val2);
10696 		vars->line_speed = SPEED_10000;
10697 		vars->duplex = DUPLEX_FULL;
10698 		DP(NETIF_MSG_LINK, "SFX7101 AN status 0x%x->Master=%x\n",
10699 			   val2, (val2 & (1<<14)));
10700 		bnx2x_ext_phy_10G_an_resolve(bp, phy, vars);
10701 		bnx2x_ext_phy_resolve_fc(phy, params, vars);
10702 	}
10703 	return link_up;
10704 }
10705 
bnx2x_7101_format_ver(u32 spirom_ver,u8 * str,u16 * len)10706 static int bnx2x_7101_format_ver(u32 spirom_ver, u8 *str, u16 *len)
10707 {
10708 	if (*len < 5)
10709 		return -EINVAL;
10710 	str[0] = (spirom_ver & 0xFF);
10711 	str[1] = (spirom_ver & 0xFF00) >> 8;
10712 	str[2] = (spirom_ver & 0xFF0000) >> 16;
10713 	str[3] = (spirom_ver & 0xFF000000) >> 24;
10714 	str[4] = '\0';
10715 	*len -= 5;
10716 	return 0;
10717 }
10718 
bnx2x_sfx7101_sp_sw_reset(struct bnx2x * bp,struct bnx2x_phy * phy)10719 void bnx2x_sfx7101_sp_sw_reset(struct bnx2x *bp, struct bnx2x_phy *phy)
10720 {
10721 	u16 val, cnt;
10722 
10723 	bnx2x_cl45_read(bp, phy,
10724 			MDIO_PMA_DEVAD,
10725 			MDIO_PMA_REG_7101_RESET, &val);
10726 
10727 	for (cnt = 0; cnt < 10; cnt++) {
10728 		msleep(50);
10729 		/* Writes a self-clearing reset */
10730 		bnx2x_cl45_write(bp, phy,
10731 				 MDIO_PMA_DEVAD,
10732 				 MDIO_PMA_REG_7101_RESET,
10733 				 (val | (1<<15)));
10734 		/* Wait for clear */
10735 		bnx2x_cl45_read(bp, phy,
10736 				MDIO_PMA_DEVAD,
10737 				MDIO_PMA_REG_7101_RESET, &val);
10738 
10739 		if ((val & (1<<15)) == 0)
10740 			break;
10741 	}
10742 }
10743 
bnx2x_7101_hw_reset(struct bnx2x_phy * phy,struct link_params * params)10744 static void bnx2x_7101_hw_reset(struct bnx2x_phy *phy,
10745 				struct link_params *params) {
10746 	/* Low power mode is controlled by GPIO 2 */
10747 	bnx2x_set_gpio(params->bp, MISC_REGISTERS_GPIO_2,
10748 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, params->port);
10749 	/* The PHY reset is controlled by GPIO 1 */
10750 	bnx2x_set_gpio(params->bp, MISC_REGISTERS_GPIO_1,
10751 		       MISC_REGISTERS_GPIO_OUTPUT_LOW, params->port);
10752 }
10753 
bnx2x_7101_set_link_led(struct bnx2x_phy * phy,struct link_params * params,u8 mode)10754 static void bnx2x_7101_set_link_led(struct bnx2x_phy *phy,
10755 				    struct link_params *params, u8 mode)
10756 {
10757 	u16 val = 0;
10758 	struct bnx2x *bp = params->bp;
10759 	switch (mode) {
10760 	case LED_MODE_FRONT_PANEL_OFF:
10761 	case LED_MODE_OFF:
10762 		val = 2;
10763 		break;
10764 	case LED_MODE_ON:
10765 		val = 1;
10766 		break;
10767 	case LED_MODE_OPER:
10768 		val = 0;
10769 		break;
10770 	}
10771 	bnx2x_cl45_write(bp, phy,
10772 			 MDIO_PMA_DEVAD,
10773 			 MDIO_PMA_REG_7107_LINK_LED_CNTL,
10774 			 val);
10775 }
10776 
10777 /******************************************************************/
10778 /*			STATIC PHY DECLARATION			  */
10779 /******************************************************************/
10780 
10781 static struct bnx2x_phy phy_null = {
10782 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN,
10783 	.addr		= 0,
10784 	.def_md_devad	= 0,
10785 	.flags		= FLAGS_INIT_XGXS_FIRST,
10786 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
10787 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
10788 	.mdio_ctrl	= 0,
10789 	.supported	= 0,
10790 	.media_type	= ETH_PHY_NOT_PRESENT,
10791 	.ver_addr	= 0,
10792 	.req_flow_ctrl	= 0,
10793 	.req_line_speed	= 0,
10794 	.speed_cap_mask	= 0,
10795 	.req_duplex	= 0,
10796 	.rsrv		= 0,
10797 	.config_init	= (config_init_t)NULL,
10798 	.read_status	= (read_status_t)NULL,
10799 	.link_reset	= (link_reset_t)NULL,
10800 	.config_loopback = (config_loopback_t)NULL,
10801 	.format_fw_ver	= (format_fw_ver_t)NULL,
10802 	.hw_reset	= (hw_reset_t)NULL,
10803 	.set_link_led	= (set_link_led_t)NULL,
10804 	.phy_specific_func = (phy_specific_func_t)NULL
10805 };
10806 
10807 static struct bnx2x_phy phy_serdes = {
10808 	.type		= PORT_HW_CFG_SERDES_EXT_PHY_TYPE_DIRECT,
10809 	.addr		= 0xff,
10810 	.def_md_devad	= 0,
10811 	.flags		= 0,
10812 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
10813 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
10814 	.mdio_ctrl	= 0,
10815 	.supported	= (SUPPORTED_10baseT_Half |
10816 			   SUPPORTED_10baseT_Full |
10817 			   SUPPORTED_100baseT_Half |
10818 			   SUPPORTED_100baseT_Full |
10819 			   SUPPORTED_1000baseT_Full |
10820 			   SUPPORTED_2500baseX_Full |
10821 			   SUPPORTED_TP |
10822 			   SUPPORTED_Autoneg |
10823 			   SUPPORTED_Pause |
10824 			   SUPPORTED_Asym_Pause),
10825 	.media_type	= ETH_PHY_BASE_T,
10826 	.ver_addr	= 0,
10827 	.req_flow_ctrl	= 0,
10828 	.req_line_speed	= 0,
10829 	.speed_cap_mask	= 0,
10830 	.req_duplex	= 0,
10831 	.rsrv		= 0,
10832 	.config_init	= (config_init_t)bnx2x_xgxs_config_init,
10833 	.read_status	= (read_status_t)bnx2x_link_settings_status,
10834 	.link_reset	= (link_reset_t)bnx2x_int_link_reset,
10835 	.config_loopback = (config_loopback_t)NULL,
10836 	.format_fw_ver	= (format_fw_ver_t)NULL,
10837 	.hw_reset	= (hw_reset_t)NULL,
10838 	.set_link_led	= (set_link_led_t)NULL,
10839 	.phy_specific_func = (phy_specific_func_t)NULL
10840 };
10841 
10842 static struct bnx2x_phy phy_xgxs = {
10843 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT,
10844 	.addr		= 0xff,
10845 	.def_md_devad	= 0,
10846 	.flags		= 0,
10847 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
10848 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
10849 	.mdio_ctrl	= 0,
10850 	.supported	= (SUPPORTED_10baseT_Half |
10851 			   SUPPORTED_10baseT_Full |
10852 			   SUPPORTED_100baseT_Half |
10853 			   SUPPORTED_100baseT_Full |
10854 			   SUPPORTED_1000baseT_Full |
10855 			   SUPPORTED_2500baseX_Full |
10856 			   SUPPORTED_10000baseT_Full |
10857 			   SUPPORTED_FIBRE |
10858 			   SUPPORTED_Autoneg |
10859 			   SUPPORTED_Pause |
10860 			   SUPPORTED_Asym_Pause),
10861 	.media_type	= ETH_PHY_CX4,
10862 	.ver_addr	= 0,
10863 	.req_flow_ctrl	= 0,
10864 	.req_line_speed	= 0,
10865 	.speed_cap_mask	= 0,
10866 	.req_duplex	= 0,
10867 	.rsrv		= 0,
10868 	.config_init	= (config_init_t)bnx2x_xgxs_config_init,
10869 	.read_status	= (read_status_t)bnx2x_link_settings_status,
10870 	.link_reset	= (link_reset_t)bnx2x_int_link_reset,
10871 	.config_loopback = (config_loopback_t)bnx2x_set_xgxs_loopback,
10872 	.format_fw_ver	= (format_fw_ver_t)NULL,
10873 	.hw_reset	= (hw_reset_t)NULL,
10874 	.set_link_led	= (set_link_led_t)NULL,
10875 	.phy_specific_func = (phy_specific_func_t)NULL
10876 };
10877 static struct bnx2x_phy phy_warpcore = {
10878 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT,
10879 	.addr		= 0xff,
10880 	.def_md_devad	= 0,
10881 	.flags		= FLAGS_HW_LOCK_REQUIRED,
10882 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
10883 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
10884 	.mdio_ctrl	= 0,
10885 	.supported	= (SUPPORTED_10baseT_Half |
10886 			     SUPPORTED_10baseT_Full |
10887 			     SUPPORTED_100baseT_Half |
10888 			     SUPPORTED_100baseT_Full |
10889 			     SUPPORTED_1000baseT_Full |
10890 			     SUPPORTED_10000baseT_Full |
10891 			     SUPPORTED_20000baseKR2_Full |
10892 			     SUPPORTED_20000baseMLD2_Full |
10893 			     SUPPORTED_FIBRE |
10894 			     SUPPORTED_Autoneg |
10895 			     SUPPORTED_Pause |
10896 			     SUPPORTED_Asym_Pause),
10897 	.media_type	= ETH_PHY_UNSPECIFIED,
10898 	.ver_addr	= 0,
10899 	.req_flow_ctrl	= 0,
10900 	.req_line_speed	= 0,
10901 	.speed_cap_mask	= 0,
10902 	/* req_duplex = */0,
10903 	/* rsrv = */0,
10904 	.config_init	= (config_init_t)bnx2x_warpcore_config_init,
10905 	.read_status	= (read_status_t)bnx2x_warpcore_read_status,
10906 	.link_reset	= (link_reset_t)bnx2x_warpcore_link_reset,
10907 	.config_loopback = (config_loopback_t)bnx2x_set_warpcore_loopback,
10908 	.format_fw_ver	= (format_fw_ver_t)NULL,
10909 	.hw_reset	= (hw_reset_t)bnx2x_warpcore_hw_reset,
10910 	.set_link_led	= (set_link_led_t)NULL,
10911 	.phy_specific_func = (phy_specific_func_t)NULL
10912 };
10913 
10914 
10915 static struct bnx2x_phy phy_7101 = {
10916 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_SFX7101,
10917 	.addr		= 0xff,
10918 	.def_md_devad	= 0,
10919 	.flags		= FLAGS_FAN_FAILURE_DET_REQ,
10920 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
10921 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
10922 	.mdio_ctrl	= 0,
10923 	.supported	= (SUPPORTED_10000baseT_Full |
10924 			   SUPPORTED_TP |
10925 			   SUPPORTED_Autoneg |
10926 			   SUPPORTED_Pause |
10927 			   SUPPORTED_Asym_Pause),
10928 	.media_type	= ETH_PHY_BASE_T,
10929 	.ver_addr	= 0,
10930 	.req_flow_ctrl	= 0,
10931 	.req_line_speed	= 0,
10932 	.speed_cap_mask	= 0,
10933 	.req_duplex	= 0,
10934 	.rsrv		= 0,
10935 	.config_init	= (config_init_t)bnx2x_7101_config_init,
10936 	.read_status	= (read_status_t)bnx2x_7101_read_status,
10937 	.link_reset	= (link_reset_t)bnx2x_common_ext_link_reset,
10938 	.config_loopback = (config_loopback_t)bnx2x_7101_config_loopback,
10939 	.format_fw_ver	= (format_fw_ver_t)bnx2x_7101_format_ver,
10940 	.hw_reset	= (hw_reset_t)bnx2x_7101_hw_reset,
10941 	.set_link_led	= (set_link_led_t)bnx2x_7101_set_link_led,
10942 	.phy_specific_func = (phy_specific_func_t)NULL
10943 };
10944 static struct bnx2x_phy phy_8073 = {
10945 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073,
10946 	.addr		= 0xff,
10947 	.def_md_devad	= 0,
10948 	.flags		= FLAGS_HW_LOCK_REQUIRED,
10949 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
10950 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
10951 	.mdio_ctrl	= 0,
10952 	.supported	= (SUPPORTED_10000baseT_Full |
10953 			   SUPPORTED_2500baseX_Full |
10954 			   SUPPORTED_1000baseT_Full |
10955 			   SUPPORTED_FIBRE |
10956 			   SUPPORTED_Autoneg |
10957 			   SUPPORTED_Pause |
10958 			   SUPPORTED_Asym_Pause),
10959 	.media_type	= ETH_PHY_KR,
10960 	.ver_addr	= 0,
10961 	.req_flow_ctrl	= 0,
10962 	.req_line_speed	= 0,
10963 	.speed_cap_mask	= 0,
10964 	.req_duplex	= 0,
10965 	.rsrv		= 0,
10966 	.config_init	= (config_init_t)bnx2x_8073_config_init,
10967 	.read_status	= (read_status_t)bnx2x_8073_read_status,
10968 	.link_reset	= (link_reset_t)bnx2x_8073_link_reset,
10969 	.config_loopback = (config_loopback_t)NULL,
10970 	.format_fw_ver	= (format_fw_ver_t)bnx2x_format_ver,
10971 	.hw_reset	= (hw_reset_t)NULL,
10972 	.set_link_led	= (set_link_led_t)NULL,
10973 	.phy_specific_func = (phy_specific_func_t)NULL
10974 };
10975 static struct bnx2x_phy phy_8705 = {
10976 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8705,
10977 	.addr		= 0xff,
10978 	.def_md_devad	= 0,
10979 	.flags		= FLAGS_INIT_XGXS_FIRST,
10980 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
10981 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
10982 	.mdio_ctrl	= 0,
10983 	.supported	= (SUPPORTED_10000baseT_Full |
10984 			   SUPPORTED_FIBRE |
10985 			   SUPPORTED_Pause |
10986 			   SUPPORTED_Asym_Pause),
10987 	.media_type	= ETH_PHY_XFP_FIBER,
10988 	.ver_addr	= 0,
10989 	.req_flow_ctrl	= 0,
10990 	.req_line_speed	= 0,
10991 	.speed_cap_mask	= 0,
10992 	.req_duplex	= 0,
10993 	.rsrv		= 0,
10994 	.config_init	= (config_init_t)bnx2x_8705_config_init,
10995 	.read_status	= (read_status_t)bnx2x_8705_read_status,
10996 	.link_reset	= (link_reset_t)bnx2x_common_ext_link_reset,
10997 	.config_loopback = (config_loopback_t)NULL,
10998 	.format_fw_ver	= (format_fw_ver_t)bnx2x_null_format_ver,
10999 	.hw_reset	= (hw_reset_t)NULL,
11000 	.set_link_led	= (set_link_led_t)NULL,
11001 	.phy_specific_func = (phy_specific_func_t)NULL
11002 };
11003 static struct bnx2x_phy phy_8706 = {
11004 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8706,
11005 	.addr		= 0xff,
11006 	.def_md_devad	= 0,
11007 	.flags		= FLAGS_INIT_XGXS_FIRST,
11008 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11009 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11010 	.mdio_ctrl	= 0,
11011 	.supported	= (SUPPORTED_10000baseT_Full |
11012 			   SUPPORTED_1000baseT_Full |
11013 			   SUPPORTED_FIBRE |
11014 			   SUPPORTED_Pause |
11015 			   SUPPORTED_Asym_Pause),
11016 	.media_type	= ETH_PHY_SFP_FIBER,
11017 	.ver_addr	= 0,
11018 	.req_flow_ctrl	= 0,
11019 	.req_line_speed	= 0,
11020 	.speed_cap_mask	= 0,
11021 	.req_duplex	= 0,
11022 	.rsrv		= 0,
11023 	.config_init	= (config_init_t)bnx2x_8706_config_init,
11024 	.read_status	= (read_status_t)bnx2x_8706_read_status,
11025 	.link_reset	= (link_reset_t)bnx2x_common_ext_link_reset,
11026 	.config_loopback = (config_loopback_t)NULL,
11027 	.format_fw_ver	= (format_fw_ver_t)bnx2x_format_ver,
11028 	.hw_reset	= (hw_reset_t)NULL,
11029 	.set_link_led	= (set_link_led_t)NULL,
11030 	.phy_specific_func = (phy_specific_func_t)NULL
11031 };
11032 
11033 static struct bnx2x_phy phy_8726 = {
11034 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726,
11035 	.addr		= 0xff,
11036 	.def_md_devad	= 0,
11037 	.flags		= (FLAGS_HW_LOCK_REQUIRED |
11038 			   FLAGS_INIT_XGXS_FIRST),
11039 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11040 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11041 	.mdio_ctrl	= 0,
11042 	.supported	= (SUPPORTED_10000baseT_Full |
11043 			   SUPPORTED_1000baseT_Full |
11044 			   SUPPORTED_Autoneg |
11045 			   SUPPORTED_FIBRE |
11046 			   SUPPORTED_Pause |
11047 			   SUPPORTED_Asym_Pause),
11048 	.media_type	= ETH_PHY_NOT_PRESENT,
11049 	.ver_addr	= 0,
11050 	.req_flow_ctrl	= 0,
11051 	.req_line_speed	= 0,
11052 	.speed_cap_mask	= 0,
11053 	.req_duplex	= 0,
11054 	.rsrv		= 0,
11055 	.config_init	= (config_init_t)bnx2x_8726_config_init,
11056 	.read_status	= (read_status_t)bnx2x_8726_read_status,
11057 	.link_reset	= (link_reset_t)bnx2x_8726_link_reset,
11058 	.config_loopback = (config_loopback_t)bnx2x_8726_config_loopback,
11059 	.format_fw_ver	= (format_fw_ver_t)bnx2x_format_ver,
11060 	.hw_reset	= (hw_reset_t)NULL,
11061 	.set_link_led	= (set_link_led_t)NULL,
11062 	.phy_specific_func = (phy_specific_func_t)NULL
11063 };
11064 
11065 static struct bnx2x_phy phy_8727 = {
11066 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727,
11067 	.addr		= 0xff,
11068 	.def_md_devad	= 0,
11069 	.flags		= FLAGS_FAN_FAILURE_DET_REQ,
11070 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11071 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11072 	.mdio_ctrl	= 0,
11073 	.supported	= (SUPPORTED_10000baseT_Full |
11074 			   SUPPORTED_1000baseT_Full |
11075 			   SUPPORTED_FIBRE |
11076 			   SUPPORTED_Pause |
11077 			   SUPPORTED_Asym_Pause),
11078 	.media_type	= ETH_PHY_NOT_PRESENT,
11079 	.ver_addr	= 0,
11080 	.req_flow_ctrl	= 0,
11081 	.req_line_speed	= 0,
11082 	.speed_cap_mask	= 0,
11083 	.req_duplex	= 0,
11084 	.rsrv		= 0,
11085 	.config_init	= (config_init_t)bnx2x_8727_config_init,
11086 	.read_status	= (read_status_t)bnx2x_8727_read_status,
11087 	.link_reset	= (link_reset_t)bnx2x_8727_link_reset,
11088 	.config_loopback = (config_loopback_t)NULL,
11089 	.format_fw_ver	= (format_fw_ver_t)bnx2x_format_ver,
11090 	.hw_reset	= (hw_reset_t)bnx2x_8727_hw_reset,
11091 	.set_link_led	= (set_link_led_t)bnx2x_8727_set_link_led,
11092 	.phy_specific_func = (phy_specific_func_t)bnx2x_8727_specific_func
11093 };
11094 static struct bnx2x_phy phy_8481 = {
11095 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481,
11096 	.addr		= 0xff,
11097 	.def_md_devad	= 0,
11098 	.flags		= FLAGS_FAN_FAILURE_DET_REQ |
11099 			  FLAGS_REARM_LATCH_SIGNAL,
11100 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11101 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11102 	.mdio_ctrl	= 0,
11103 	.supported	= (SUPPORTED_10baseT_Half |
11104 			   SUPPORTED_10baseT_Full |
11105 			   SUPPORTED_100baseT_Half |
11106 			   SUPPORTED_100baseT_Full |
11107 			   SUPPORTED_1000baseT_Full |
11108 			   SUPPORTED_10000baseT_Full |
11109 			   SUPPORTED_TP |
11110 			   SUPPORTED_Autoneg |
11111 			   SUPPORTED_Pause |
11112 			   SUPPORTED_Asym_Pause),
11113 	.media_type	= ETH_PHY_BASE_T,
11114 	.ver_addr	= 0,
11115 	.req_flow_ctrl	= 0,
11116 	.req_line_speed	= 0,
11117 	.speed_cap_mask	= 0,
11118 	.req_duplex	= 0,
11119 	.rsrv		= 0,
11120 	.config_init	= (config_init_t)bnx2x_8481_config_init,
11121 	.read_status	= (read_status_t)bnx2x_848xx_read_status,
11122 	.link_reset	= (link_reset_t)bnx2x_8481_link_reset,
11123 	.config_loopback = (config_loopback_t)NULL,
11124 	.format_fw_ver	= (format_fw_ver_t)bnx2x_848xx_format_ver,
11125 	.hw_reset	= (hw_reset_t)bnx2x_8481_hw_reset,
11126 	.set_link_led	= (set_link_led_t)bnx2x_848xx_set_link_led,
11127 	.phy_specific_func = (phy_specific_func_t)NULL
11128 };
11129 
11130 static struct bnx2x_phy phy_84823 = {
11131 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823,
11132 	.addr		= 0xff,
11133 	.def_md_devad	= 0,
11134 	.flags		= FLAGS_FAN_FAILURE_DET_REQ |
11135 			  FLAGS_REARM_LATCH_SIGNAL,
11136 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11137 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11138 	.mdio_ctrl	= 0,
11139 	.supported	= (SUPPORTED_10baseT_Half |
11140 			   SUPPORTED_10baseT_Full |
11141 			   SUPPORTED_100baseT_Half |
11142 			   SUPPORTED_100baseT_Full |
11143 			   SUPPORTED_1000baseT_Full |
11144 			   SUPPORTED_10000baseT_Full |
11145 			   SUPPORTED_TP |
11146 			   SUPPORTED_Autoneg |
11147 			   SUPPORTED_Pause |
11148 			   SUPPORTED_Asym_Pause),
11149 	.media_type	= ETH_PHY_BASE_T,
11150 	.ver_addr	= 0,
11151 	.req_flow_ctrl	= 0,
11152 	.req_line_speed	= 0,
11153 	.speed_cap_mask	= 0,
11154 	.req_duplex	= 0,
11155 	.rsrv		= 0,
11156 	.config_init	= (config_init_t)bnx2x_848x3_config_init,
11157 	.read_status	= (read_status_t)bnx2x_848xx_read_status,
11158 	.link_reset	= (link_reset_t)bnx2x_848x3_link_reset,
11159 	.config_loopback = (config_loopback_t)NULL,
11160 	.format_fw_ver	= (format_fw_ver_t)bnx2x_848xx_format_ver,
11161 	.hw_reset	= (hw_reset_t)NULL,
11162 	.set_link_led	= (set_link_led_t)bnx2x_848xx_set_link_led,
11163 	.phy_specific_func = (phy_specific_func_t)NULL
11164 };
11165 
11166 static struct bnx2x_phy phy_84833 = {
11167 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833,
11168 	.addr		= 0xff,
11169 	.def_md_devad	= 0,
11170 	.flags		= FLAGS_FAN_FAILURE_DET_REQ |
11171 			    FLAGS_REARM_LATCH_SIGNAL,
11172 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11173 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11174 	.mdio_ctrl	= 0,
11175 	.supported	= (SUPPORTED_100baseT_Half |
11176 			   SUPPORTED_100baseT_Full |
11177 			   SUPPORTED_1000baseT_Full |
11178 			   SUPPORTED_10000baseT_Full |
11179 			   SUPPORTED_TP |
11180 			   SUPPORTED_Autoneg |
11181 			   SUPPORTED_Pause |
11182 			   SUPPORTED_Asym_Pause),
11183 	.media_type	= ETH_PHY_BASE_T,
11184 	.ver_addr	= 0,
11185 	.req_flow_ctrl	= 0,
11186 	.req_line_speed	= 0,
11187 	.speed_cap_mask	= 0,
11188 	.req_duplex	= 0,
11189 	.rsrv		= 0,
11190 	.config_init	= (config_init_t)bnx2x_848x3_config_init,
11191 	.read_status	= (read_status_t)bnx2x_848xx_read_status,
11192 	.link_reset	= (link_reset_t)bnx2x_848x3_link_reset,
11193 	.config_loopback = (config_loopback_t)NULL,
11194 	.format_fw_ver	= (format_fw_ver_t)bnx2x_848xx_format_ver,
11195 	.hw_reset	= (hw_reset_t)bnx2x_84833_hw_reset_phy,
11196 	.set_link_led	= (set_link_led_t)bnx2x_848xx_set_link_led,
11197 	.phy_specific_func = (phy_specific_func_t)NULL
11198 };
11199 
11200 static struct bnx2x_phy phy_54618se = {
11201 	.type		= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE,
11202 	.addr		= 0xff,
11203 	.def_md_devad	= 0,
11204 	.flags		= FLAGS_INIT_XGXS_FIRST,
11205 	.rx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11206 	.tx_preemphasis	= {0xffff, 0xffff, 0xffff, 0xffff},
11207 	.mdio_ctrl	= 0,
11208 	.supported	= (SUPPORTED_10baseT_Half |
11209 			   SUPPORTED_10baseT_Full |
11210 			   SUPPORTED_100baseT_Half |
11211 			   SUPPORTED_100baseT_Full |
11212 			   SUPPORTED_1000baseT_Full |
11213 			   SUPPORTED_TP |
11214 			   SUPPORTED_Autoneg |
11215 			   SUPPORTED_Pause |
11216 			   SUPPORTED_Asym_Pause),
11217 	.media_type	= ETH_PHY_BASE_T,
11218 	.ver_addr	= 0,
11219 	.req_flow_ctrl	= 0,
11220 	.req_line_speed	= 0,
11221 	.speed_cap_mask	= 0,
11222 	/* req_duplex = */0,
11223 	/* rsrv = */0,
11224 	.config_init	= (config_init_t)bnx2x_54618se_config_init,
11225 	.read_status	= (read_status_t)bnx2x_54618se_read_status,
11226 	.link_reset	= (link_reset_t)bnx2x_54618se_link_reset,
11227 	.config_loopback = (config_loopback_t)bnx2x_54618se_config_loopback,
11228 	.format_fw_ver	= (format_fw_ver_t)NULL,
11229 	.hw_reset	= (hw_reset_t)NULL,
11230 	.set_link_led	= (set_link_led_t)bnx2x_5461x_set_link_led,
11231 	.phy_specific_func = (phy_specific_func_t)NULL
11232 };
11233 /*****************************************************************/
11234 /*                                                               */
11235 /* Populate the phy according. Main function: bnx2x_populate_phy   */
11236 /*                                                               */
11237 /*****************************************************************/
11238 
bnx2x_populate_preemphasis(struct bnx2x * bp,u32 shmem_base,struct bnx2x_phy * phy,u8 port,u8 phy_index)11239 static void bnx2x_populate_preemphasis(struct bnx2x *bp, u32 shmem_base,
11240 				     struct bnx2x_phy *phy, u8 port,
11241 				     u8 phy_index)
11242 {
11243 	/* Get the 4 lanes xgxs config rx and tx */
11244 	u32 rx = 0, tx = 0, i;
11245 	for (i = 0; i < 2; i++) {
11246 		/*
11247 		 * INT_PHY and EXT_PHY1 share the same value location in the
11248 		 * shmem. When num_phys is greater than 1, than this value
11249 		 * applies only to EXT_PHY1
11250 		 */
11251 		if (phy_index == INT_PHY || phy_index == EXT_PHY1) {
11252 			rx = REG_RD(bp, shmem_base +
11253 				    offsetof(struct shmem_region,
11254 			  dev_info.port_hw_config[port].xgxs_config_rx[i<<1]));
11255 
11256 			tx = REG_RD(bp, shmem_base +
11257 				    offsetof(struct shmem_region,
11258 			  dev_info.port_hw_config[port].xgxs_config_tx[i<<1]));
11259 		} else {
11260 			rx = REG_RD(bp, shmem_base +
11261 				    offsetof(struct shmem_region,
11262 			 dev_info.port_hw_config[port].xgxs_config2_rx[i<<1]));
11263 
11264 			tx = REG_RD(bp, shmem_base +
11265 				    offsetof(struct shmem_region,
11266 			 dev_info.port_hw_config[port].xgxs_config2_rx[i<<1]));
11267 		}
11268 
11269 		phy->rx_preemphasis[i << 1] = ((rx>>16) & 0xffff);
11270 		phy->rx_preemphasis[(i << 1) + 1] = (rx & 0xffff);
11271 
11272 		phy->tx_preemphasis[i << 1] = ((tx>>16) & 0xffff);
11273 		phy->tx_preemphasis[(i << 1) + 1] = (tx & 0xffff);
11274 	}
11275 }
11276 
bnx2x_get_ext_phy_config(struct bnx2x * bp,u32 shmem_base,u8 phy_index,u8 port)11277 static u32 bnx2x_get_ext_phy_config(struct bnx2x *bp, u32 shmem_base,
11278 				    u8 phy_index, u8 port)
11279 {
11280 	u32 ext_phy_config = 0;
11281 	switch (phy_index) {
11282 	case EXT_PHY1:
11283 		ext_phy_config = REG_RD(bp, shmem_base +
11284 					      offsetof(struct shmem_region,
11285 			dev_info.port_hw_config[port].external_phy_config));
11286 		break;
11287 	case EXT_PHY2:
11288 		ext_phy_config = REG_RD(bp, shmem_base +
11289 					      offsetof(struct shmem_region,
11290 			dev_info.port_hw_config[port].external_phy_config2));
11291 		break;
11292 	default:
11293 		DP(NETIF_MSG_LINK, "Invalid phy_index %d\n", phy_index);
11294 		return -EINVAL;
11295 	}
11296 
11297 	return ext_phy_config;
11298 }
bnx2x_populate_int_phy(struct bnx2x * bp,u32 shmem_base,u8 port,struct bnx2x_phy * phy)11299 static int bnx2x_populate_int_phy(struct bnx2x *bp, u32 shmem_base, u8 port,
11300 				  struct bnx2x_phy *phy)
11301 {
11302 	u32 phy_addr;
11303 	u32 chip_id;
11304 	u32 switch_cfg = (REG_RD(bp, shmem_base +
11305 				       offsetof(struct shmem_region,
11306 			dev_info.port_feature_config[port].link_config)) &
11307 			  PORT_FEATURE_CONNECTED_SWITCH_MASK);
11308 	chip_id = (REG_RD(bp, MISC_REG_CHIP_NUM) << 16) |
11309 		((REG_RD(bp, MISC_REG_CHIP_REV) & 0xf) << 12);
11310 
11311 	DP(NETIF_MSG_LINK, ":chip_id = 0x%x\n", chip_id);
11312 	if (USES_WARPCORE(bp)) {
11313 		u32 serdes_net_if;
11314 		phy_addr = REG_RD(bp,
11315 				  MISC_REG_WC0_CTRL_PHY_ADDR);
11316 		*phy = phy_warpcore;
11317 		if (REG_RD(bp, MISC_REG_PORT4MODE_EN_OVWR) == 0x3)
11318 			phy->flags |= FLAGS_4_PORT_MODE;
11319 		else
11320 			phy->flags &= ~FLAGS_4_PORT_MODE;
11321 			/* Check Dual mode */
11322 		serdes_net_if = (REG_RD(bp, shmem_base +
11323 					offsetof(struct shmem_region, dev_info.
11324 					port_hw_config[port].default_cfg)) &
11325 				 PORT_HW_CFG_NET_SERDES_IF_MASK);
11326 		/*
11327 		 * Set the appropriate supported and flags indications per
11328 		 * interface type of the chip
11329 		 */
11330 		switch (serdes_net_if) {
11331 		case PORT_HW_CFG_NET_SERDES_IF_SGMII:
11332 			phy->supported &= (SUPPORTED_10baseT_Half |
11333 					   SUPPORTED_10baseT_Full |
11334 					   SUPPORTED_100baseT_Half |
11335 					   SUPPORTED_100baseT_Full |
11336 					   SUPPORTED_1000baseT_Full |
11337 					   SUPPORTED_FIBRE |
11338 					   SUPPORTED_Autoneg |
11339 					   SUPPORTED_Pause |
11340 					   SUPPORTED_Asym_Pause);
11341 			phy->media_type = ETH_PHY_BASE_T;
11342 			break;
11343 		case PORT_HW_CFG_NET_SERDES_IF_XFI:
11344 			phy->media_type = ETH_PHY_XFP_FIBER;
11345 			break;
11346 		case PORT_HW_CFG_NET_SERDES_IF_SFI:
11347 			phy->supported &= (SUPPORTED_1000baseT_Full |
11348 					   SUPPORTED_10000baseT_Full |
11349 					   SUPPORTED_FIBRE |
11350 					   SUPPORTED_Pause |
11351 					   SUPPORTED_Asym_Pause);
11352 			phy->media_type = ETH_PHY_SFP_FIBER;
11353 			break;
11354 		case PORT_HW_CFG_NET_SERDES_IF_KR:
11355 			phy->media_type = ETH_PHY_KR;
11356 			phy->supported &= (SUPPORTED_1000baseT_Full |
11357 					   SUPPORTED_10000baseT_Full |
11358 					   SUPPORTED_FIBRE |
11359 					   SUPPORTED_Autoneg |
11360 					   SUPPORTED_Pause |
11361 					   SUPPORTED_Asym_Pause);
11362 			break;
11363 		case PORT_HW_CFG_NET_SERDES_IF_DXGXS:
11364 			phy->media_type = ETH_PHY_KR;
11365 			phy->flags |= FLAGS_WC_DUAL_MODE;
11366 			phy->supported &= (SUPPORTED_20000baseMLD2_Full |
11367 					   SUPPORTED_FIBRE |
11368 					   SUPPORTED_Pause |
11369 					   SUPPORTED_Asym_Pause);
11370 			break;
11371 		case PORT_HW_CFG_NET_SERDES_IF_KR2:
11372 			phy->media_type = ETH_PHY_KR;
11373 			phy->flags |= FLAGS_WC_DUAL_MODE;
11374 			phy->supported &= (SUPPORTED_20000baseKR2_Full |
11375 					   SUPPORTED_FIBRE |
11376 					   SUPPORTED_Pause |
11377 					   SUPPORTED_Asym_Pause);
11378 			break;
11379 		default:
11380 			DP(NETIF_MSG_LINK, "Unknown WC interface type 0x%x\n",
11381 				       serdes_net_if);
11382 			break;
11383 		}
11384 
11385 		/*
11386 		 * Enable MDC/MDIO work-around for E3 A0 since free running MDC
11387 		 * was not set as expected. For B0, ECO will be enabled so there
11388 		 * won't be an issue there
11389 		 */
11390 		if (CHIP_REV(bp) == CHIP_REV_Ax)
11391 			phy->flags |= FLAGS_MDC_MDIO_WA;
11392 		else
11393 			phy->flags |= FLAGS_MDC_MDIO_WA_B0;
11394 	} else {
11395 		switch (switch_cfg) {
11396 		case SWITCH_CFG_1G:
11397 			phy_addr = REG_RD(bp,
11398 					  NIG_REG_SERDES0_CTRL_PHY_ADDR +
11399 					  port * 0x10);
11400 			*phy = phy_serdes;
11401 			break;
11402 		case SWITCH_CFG_10G:
11403 			phy_addr = REG_RD(bp,
11404 					  NIG_REG_XGXS0_CTRL_PHY_ADDR +
11405 					  port * 0x18);
11406 			*phy = phy_xgxs;
11407 			break;
11408 		default:
11409 			DP(NETIF_MSG_LINK, "Invalid switch_cfg\n");
11410 			return -EINVAL;
11411 		}
11412 	}
11413 	phy->addr = (u8)phy_addr;
11414 	phy->mdio_ctrl = bnx2x_get_emac_base(bp,
11415 					    SHARED_HW_CFG_MDC_MDIO_ACCESS1_BOTH,
11416 					    port);
11417 	if (CHIP_IS_E2(bp))
11418 		phy->def_md_devad = E2_DEFAULT_PHY_DEV_ADDR;
11419 	else
11420 		phy->def_md_devad = DEFAULT_PHY_DEV_ADDR;
11421 
11422 	DP(NETIF_MSG_LINK, "Internal phy port=%d, addr=0x%x, mdio_ctl=0x%x\n",
11423 		   port, phy->addr, phy->mdio_ctrl);
11424 
11425 	bnx2x_populate_preemphasis(bp, shmem_base, phy, port, INT_PHY);
11426 	return 0;
11427 }
11428 
bnx2x_populate_ext_phy(struct bnx2x * bp,u8 phy_index,u32 shmem_base,u32 shmem2_base,u8 port,struct bnx2x_phy * phy)11429 static int bnx2x_populate_ext_phy(struct bnx2x *bp,
11430 				  u8 phy_index,
11431 				  u32 shmem_base,
11432 				  u32 shmem2_base,
11433 				  u8 port,
11434 				  struct bnx2x_phy *phy)
11435 {
11436 	u32 ext_phy_config, phy_type, config2;
11437 	u32 mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_BOTH;
11438 	ext_phy_config = bnx2x_get_ext_phy_config(bp, shmem_base,
11439 						  phy_index, port);
11440 	phy_type = XGXS_EXT_PHY_TYPE(ext_phy_config);
11441 	/* Select the phy type */
11442 	switch (phy_type) {
11443 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073:
11444 		mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_SWAPPED;
11445 		*phy = phy_8073;
11446 		break;
11447 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8705:
11448 		*phy = phy_8705;
11449 		break;
11450 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8706:
11451 		*phy = phy_8706;
11452 		break;
11453 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726:
11454 		mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC1;
11455 		*phy = phy_8726;
11456 		break;
11457 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727_NOC:
11458 		/* BCM8727_NOC => BCM8727 no over current */
11459 		mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC1;
11460 		*phy = phy_8727;
11461 		phy->flags |= FLAGS_NOC;
11462 		break;
11463 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
11464 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
11465 		mdc_mdio_access = SHARED_HW_CFG_MDC_MDIO_ACCESS1_EMAC1;
11466 		*phy = phy_8727;
11467 		break;
11468 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481:
11469 		*phy = phy_8481;
11470 		break;
11471 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84823:
11472 		*phy = phy_84823;
11473 		break;
11474 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833:
11475 		*phy = phy_84833;
11476 		break;
11477 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54616:
11478 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM54618SE:
11479 		*phy = phy_54618se;
11480 		break;
11481 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_SFX7101:
11482 		*phy = phy_7101;
11483 		break;
11484 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE:
11485 		*phy = phy_null;
11486 		return -EINVAL;
11487 	default:
11488 		*phy = phy_null;
11489 		/* In case external PHY wasn't found */
11490 		if ((phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_DIRECT) &&
11491 		    (phy_type != PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN))
11492 			return -EINVAL;
11493 		return 0;
11494 	}
11495 
11496 	phy->addr = XGXS_EXT_PHY_ADDR(ext_phy_config);
11497 	bnx2x_populate_preemphasis(bp, shmem_base, phy, port, phy_index);
11498 
11499 	/*
11500 	 * The shmem address of the phy version is located on different
11501 	 * structures. In case this structure is too old, do not set
11502 	 * the address
11503 	 */
11504 	config2 = REG_RD(bp, shmem_base + offsetof(struct shmem_region,
11505 					dev_info.shared_hw_config.config2));
11506 	if (phy_index == EXT_PHY1) {
11507 		phy->ver_addr = shmem_base + offsetof(struct shmem_region,
11508 				port_mb[port].ext_phy_fw_version);
11509 
11510 		/* Check specific mdc mdio settings */
11511 		if (config2 & SHARED_HW_CFG_MDC_MDIO_ACCESS1_MASK)
11512 			mdc_mdio_access = config2 &
11513 			SHARED_HW_CFG_MDC_MDIO_ACCESS1_MASK;
11514 	} else {
11515 		u32 size = REG_RD(bp, shmem2_base);
11516 
11517 		if (size >
11518 		    offsetof(struct shmem2_region, ext_phy_fw_version2)) {
11519 			phy->ver_addr = shmem2_base +
11520 			    offsetof(struct shmem2_region,
11521 				     ext_phy_fw_version2[port]);
11522 		}
11523 		/* Check specific mdc mdio settings */
11524 		if (config2 & SHARED_HW_CFG_MDC_MDIO_ACCESS2_MASK)
11525 			mdc_mdio_access = (config2 &
11526 			SHARED_HW_CFG_MDC_MDIO_ACCESS2_MASK) >>
11527 			(SHARED_HW_CFG_MDC_MDIO_ACCESS2_SHIFT -
11528 			 SHARED_HW_CFG_MDC_MDIO_ACCESS1_SHIFT);
11529 	}
11530 	phy->mdio_ctrl = bnx2x_get_emac_base(bp, mdc_mdio_access, port);
11531 
11532 	if ((phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833) &&
11533 	    (phy->ver_addr)) {
11534 		/*
11535 		 * Remove 100Mb link supported for BCM84833 when phy fw
11536 		 * version lower than or equal to 1.39
11537 		 */
11538 		u32 raw_ver = REG_RD(bp, phy->ver_addr);
11539 		if (((raw_ver & 0x7F) <= 39) &&
11540 		    (((raw_ver & 0xF80) >> 7) <= 1))
11541 			phy->supported &= ~(SUPPORTED_100baseT_Half |
11542 					    SUPPORTED_100baseT_Full);
11543 	}
11544 
11545 	/*
11546 	 * In case mdc/mdio_access of the external phy is different than the
11547 	 * mdc/mdio access of the XGXS, a HW lock must be taken in each access
11548 	 * to prevent one port interfere with another port's CL45 operations.
11549 	 */
11550 	if (mdc_mdio_access != SHARED_HW_CFG_MDC_MDIO_ACCESS1_BOTH)
11551 		phy->flags |= FLAGS_HW_LOCK_REQUIRED;
11552 	DP(NETIF_MSG_LINK, "phy_type 0x%x port %d found in index %d\n",
11553 		   phy_type, port, phy_index);
11554 	DP(NETIF_MSG_LINK, "             addr=0x%x, mdio_ctl=0x%x\n",
11555 		   phy->addr, phy->mdio_ctrl);
11556 	return 0;
11557 }
11558 
bnx2x_populate_phy(struct bnx2x * bp,u8 phy_index,u32 shmem_base,u32 shmem2_base,u8 port,struct bnx2x_phy * phy)11559 static int bnx2x_populate_phy(struct bnx2x *bp, u8 phy_index, u32 shmem_base,
11560 			      u32 shmem2_base, u8 port, struct bnx2x_phy *phy)
11561 {
11562 	int status = 0;
11563 	phy->type = PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN;
11564 	if (phy_index == INT_PHY)
11565 		return bnx2x_populate_int_phy(bp, shmem_base, port, phy);
11566 	status = bnx2x_populate_ext_phy(bp, phy_index, shmem_base, shmem2_base,
11567 					port, phy);
11568 	return status;
11569 }
11570 
bnx2x_phy_def_cfg(struct link_params * params,struct bnx2x_phy * phy,u8 phy_index)11571 static void bnx2x_phy_def_cfg(struct link_params *params,
11572 			      struct bnx2x_phy *phy,
11573 			      u8 phy_index)
11574 {
11575 	struct bnx2x *bp = params->bp;
11576 	u32 link_config;
11577 	/* Populate the default phy configuration for MF mode */
11578 	if (phy_index == EXT_PHY2) {
11579 		link_config = REG_RD(bp, params->shmem_base +
11580 				     offsetof(struct shmem_region, dev_info.
11581 			port_feature_config[params->port].link_config2));
11582 		phy->speed_cap_mask = REG_RD(bp, params->shmem_base +
11583 					     offsetof(struct shmem_region,
11584 						      dev_info.
11585 			port_hw_config[params->port].speed_capability_mask2));
11586 	} else {
11587 		link_config = REG_RD(bp, params->shmem_base +
11588 				     offsetof(struct shmem_region, dev_info.
11589 				port_feature_config[params->port].link_config));
11590 		phy->speed_cap_mask = REG_RD(bp, params->shmem_base +
11591 					     offsetof(struct shmem_region,
11592 						      dev_info.
11593 			port_hw_config[params->port].speed_capability_mask));
11594 	}
11595 	DP(NETIF_MSG_LINK,
11596 	   "Default config phy idx %x cfg 0x%x speed_cap_mask 0x%x\n",
11597 	   phy_index, link_config, phy->speed_cap_mask);
11598 
11599 	phy->req_duplex = DUPLEX_FULL;
11600 	switch (link_config  & PORT_FEATURE_LINK_SPEED_MASK) {
11601 	case PORT_FEATURE_LINK_SPEED_10M_HALF:
11602 		phy->req_duplex = DUPLEX_HALF;
11603 	case PORT_FEATURE_LINK_SPEED_10M_FULL:
11604 		phy->req_line_speed = SPEED_10;
11605 		break;
11606 	case PORT_FEATURE_LINK_SPEED_100M_HALF:
11607 		phy->req_duplex = DUPLEX_HALF;
11608 	case PORT_FEATURE_LINK_SPEED_100M_FULL:
11609 		phy->req_line_speed = SPEED_100;
11610 		break;
11611 	case PORT_FEATURE_LINK_SPEED_1G:
11612 		phy->req_line_speed = SPEED_1000;
11613 		break;
11614 	case PORT_FEATURE_LINK_SPEED_2_5G:
11615 		phy->req_line_speed = SPEED_2500;
11616 		break;
11617 	case PORT_FEATURE_LINK_SPEED_10G_CX4:
11618 		phy->req_line_speed = SPEED_10000;
11619 		break;
11620 	default:
11621 		phy->req_line_speed = SPEED_AUTO_NEG;
11622 		break;
11623 	}
11624 
11625 	switch (link_config  & PORT_FEATURE_FLOW_CONTROL_MASK) {
11626 	case PORT_FEATURE_FLOW_CONTROL_AUTO:
11627 		phy->req_flow_ctrl = BNX2X_FLOW_CTRL_AUTO;
11628 		break;
11629 	case PORT_FEATURE_FLOW_CONTROL_TX:
11630 		phy->req_flow_ctrl = BNX2X_FLOW_CTRL_TX;
11631 		break;
11632 	case PORT_FEATURE_FLOW_CONTROL_RX:
11633 		phy->req_flow_ctrl = BNX2X_FLOW_CTRL_RX;
11634 		break;
11635 	case PORT_FEATURE_FLOW_CONTROL_BOTH:
11636 		phy->req_flow_ctrl = BNX2X_FLOW_CTRL_BOTH;
11637 		break;
11638 	default:
11639 		phy->req_flow_ctrl = BNX2X_FLOW_CTRL_NONE;
11640 		break;
11641 	}
11642 }
11643 
bnx2x_phy_selection(struct link_params * params)11644 u32 bnx2x_phy_selection(struct link_params *params)
11645 {
11646 	u32 phy_config_swapped, prio_cfg;
11647 	u32 return_cfg = PORT_HW_CFG_PHY_SELECTION_HARDWARE_DEFAULT;
11648 
11649 	phy_config_swapped = params->multi_phy_config &
11650 		PORT_HW_CFG_PHY_SWAPPED_ENABLED;
11651 
11652 	prio_cfg = params->multi_phy_config &
11653 			PORT_HW_CFG_PHY_SELECTION_MASK;
11654 
11655 	if (phy_config_swapped) {
11656 		switch (prio_cfg) {
11657 		case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY:
11658 		     return_cfg = PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY;
11659 		     break;
11660 		case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY_PRIORITY:
11661 		     return_cfg = PORT_HW_CFG_PHY_SELECTION_FIRST_PHY_PRIORITY;
11662 		     break;
11663 		case PORT_HW_CFG_PHY_SELECTION_SECOND_PHY:
11664 		     return_cfg = PORT_HW_CFG_PHY_SELECTION_FIRST_PHY;
11665 		     break;
11666 		case PORT_HW_CFG_PHY_SELECTION_FIRST_PHY:
11667 		     return_cfg = PORT_HW_CFG_PHY_SELECTION_SECOND_PHY;
11668 		     break;
11669 		}
11670 	} else
11671 		return_cfg = prio_cfg;
11672 
11673 	return return_cfg;
11674 }
11675 
11676 
bnx2x_phy_probe(struct link_params * params)11677 int bnx2x_phy_probe(struct link_params *params)
11678 {
11679 	u8 phy_index, actual_phy_idx;
11680 	u32 phy_config_swapped, sync_offset, media_types;
11681 	struct bnx2x *bp = params->bp;
11682 	struct bnx2x_phy *phy;
11683 	params->num_phys = 0;
11684 	DP(NETIF_MSG_LINK, "Begin phy probe\n");
11685 	phy_config_swapped = params->multi_phy_config &
11686 		PORT_HW_CFG_PHY_SWAPPED_ENABLED;
11687 
11688 	for (phy_index = INT_PHY; phy_index < MAX_PHYS;
11689 	      phy_index++) {
11690 		actual_phy_idx = phy_index;
11691 		if (phy_config_swapped) {
11692 			if (phy_index == EXT_PHY1)
11693 				actual_phy_idx = EXT_PHY2;
11694 			else if (phy_index == EXT_PHY2)
11695 				actual_phy_idx = EXT_PHY1;
11696 		}
11697 		DP(NETIF_MSG_LINK, "phy_config_swapped %x, phy_index %x,"
11698 			       " actual_phy_idx %x\n", phy_config_swapped,
11699 			   phy_index, actual_phy_idx);
11700 		phy = &params->phy[actual_phy_idx];
11701 		if (bnx2x_populate_phy(bp, phy_index, params->shmem_base,
11702 				       params->shmem2_base, params->port,
11703 				       phy) != 0) {
11704 			params->num_phys = 0;
11705 			DP(NETIF_MSG_LINK, "phy probe failed in phy index %d\n",
11706 				   phy_index);
11707 			for (phy_index = INT_PHY;
11708 			      phy_index < MAX_PHYS;
11709 			      phy_index++)
11710 				*phy = phy_null;
11711 			return -EINVAL;
11712 		}
11713 		if (phy->type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_NOT_CONN)
11714 			break;
11715 
11716 		sync_offset = params->shmem_base +
11717 			offsetof(struct shmem_region,
11718 			dev_info.port_hw_config[params->port].media_type);
11719 		media_types = REG_RD(bp, sync_offset);
11720 
11721 		/*
11722 		 * Update media type for non-PMF sync only for the first time
11723 		 * In case the media type changes afterwards, it will be updated
11724 		 * using the update_status function
11725 		 */
11726 		if ((media_types & (PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK <<
11727 				    (PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT *
11728 				     actual_phy_idx))) == 0) {
11729 			media_types |= ((phy->media_type &
11730 					PORT_HW_CFG_MEDIA_TYPE_PHY0_MASK) <<
11731 				(PORT_HW_CFG_MEDIA_TYPE_PHY1_SHIFT *
11732 				 actual_phy_idx));
11733 		}
11734 		REG_WR(bp, sync_offset, media_types);
11735 
11736 		bnx2x_phy_def_cfg(params, phy, phy_index);
11737 		params->num_phys++;
11738 	}
11739 
11740 	DP(NETIF_MSG_LINK, "End phy probe. #phys found %x\n", params->num_phys);
11741 	return 0;
11742 }
11743 
bnx2x_init_bmac_loopback(struct link_params * params,struct link_vars * vars)11744 void bnx2x_init_bmac_loopback(struct link_params *params,
11745 			      struct link_vars *vars)
11746 {
11747 	struct bnx2x *bp = params->bp;
11748 		vars->link_up = 1;
11749 		vars->line_speed = SPEED_10000;
11750 		vars->duplex = DUPLEX_FULL;
11751 		vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
11752 		vars->mac_type = MAC_TYPE_BMAC;
11753 
11754 		vars->phy_flags = PHY_XGXS_FLAG;
11755 
11756 		bnx2x_xgxs_deassert(params);
11757 
11758 		/* set bmac loopback */
11759 		bnx2x_bmac_enable(params, vars, 1);
11760 
11761 		REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
11762 }
11763 
bnx2x_init_emac_loopback(struct link_params * params,struct link_vars * vars)11764 void bnx2x_init_emac_loopback(struct link_params *params,
11765 			      struct link_vars *vars)
11766 {
11767 	struct bnx2x *bp = params->bp;
11768 		vars->link_up = 1;
11769 		vars->line_speed = SPEED_1000;
11770 		vars->duplex = DUPLEX_FULL;
11771 		vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
11772 		vars->mac_type = MAC_TYPE_EMAC;
11773 
11774 		vars->phy_flags = PHY_XGXS_FLAG;
11775 
11776 		bnx2x_xgxs_deassert(params);
11777 		/* set bmac loopback */
11778 		bnx2x_emac_enable(params, vars, 1);
11779 		bnx2x_emac_program(params, vars);
11780 		REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
11781 }
11782 
bnx2x_init_xmac_loopback(struct link_params * params,struct link_vars * vars)11783 void bnx2x_init_xmac_loopback(struct link_params *params,
11784 			      struct link_vars *vars)
11785 {
11786 	struct bnx2x *bp = params->bp;
11787 	vars->link_up = 1;
11788 	if (!params->req_line_speed[0])
11789 		vars->line_speed = SPEED_10000;
11790 	else
11791 		vars->line_speed = params->req_line_speed[0];
11792 	vars->duplex = DUPLEX_FULL;
11793 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
11794 	vars->mac_type = MAC_TYPE_XMAC;
11795 	vars->phy_flags = PHY_XGXS_FLAG;
11796 	/*
11797 	 * Set WC to loopback mode since link is required to provide clock
11798 	 * to the XMAC in 20G mode
11799 	 */
11800 	bnx2x_set_aer_mmd(params, &params->phy[0]);
11801 	bnx2x_warpcore_reset_lane(bp, &params->phy[0], 0);
11802 	params->phy[INT_PHY].config_loopback(
11803 			&params->phy[INT_PHY],
11804 			params);
11805 
11806 	bnx2x_xmac_enable(params, vars, 1);
11807 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
11808 }
11809 
bnx2x_init_umac_loopback(struct link_params * params,struct link_vars * vars)11810 void bnx2x_init_umac_loopback(struct link_params *params,
11811 			      struct link_vars *vars)
11812 {
11813 	struct bnx2x *bp = params->bp;
11814 	vars->link_up = 1;
11815 	vars->line_speed = SPEED_1000;
11816 	vars->duplex = DUPLEX_FULL;
11817 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
11818 	vars->mac_type = MAC_TYPE_UMAC;
11819 	vars->phy_flags = PHY_XGXS_FLAG;
11820 	bnx2x_umac_enable(params, vars, 1);
11821 
11822 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
11823 }
11824 
bnx2x_init_xgxs_loopback(struct link_params * params,struct link_vars * vars)11825 void bnx2x_init_xgxs_loopback(struct link_params *params,
11826 			      struct link_vars *vars)
11827 {
11828 	struct bnx2x *bp = params->bp;
11829 		vars->link_up = 1;
11830 		vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
11831 		vars->duplex = DUPLEX_FULL;
11832 	if (params->req_line_speed[0] == SPEED_1000)
11833 			vars->line_speed = SPEED_1000;
11834 	else
11835 			vars->line_speed = SPEED_10000;
11836 
11837 	if (!USES_WARPCORE(bp))
11838 		bnx2x_xgxs_deassert(params);
11839 	bnx2x_link_initialize(params, vars);
11840 
11841 	if (params->req_line_speed[0] == SPEED_1000) {
11842 		if (USES_WARPCORE(bp))
11843 			bnx2x_umac_enable(params, vars, 0);
11844 		else {
11845 			bnx2x_emac_program(params, vars);
11846 			bnx2x_emac_enable(params, vars, 0);
11847 		}
11848 	} else {
11849 		if (USES_WARPCORE(bp))
11850 			bnx2x_xmac_enable(params, vars, 0);
11851 		else
11852 			bnx2x_bmac_enable(params, vars, 0);
11853 	}
11854 
11855 		if (params->loopback_mode == LOOPBACK_XGXS) {
11856 			/* set 10G XGXS loopback */
11857 			params->phy[INT_PHY].config_loopback(
11858 				&params->phy[INT_PHY],
11859 				params);
11860 
11861 		} else {
11862 			/* set external phy loopback */
11863 			u8 phy_index;
11864 			for (phy_index = EXT_PHY1;
11865 			      phy_index < params->num_phys; phy_index++) {
11866 				if (params->phy[phy_index].config_loopback)
11867 					params->phy[phy_index].config_loopback(
11868 						&params->phy[phy_index],
11869 						params);
11870 			}
11871 		}
11872 		REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + params->port*4, 0);
11873 
11874 	bnx2x_set_led(params, vars, LED_MODE_OPER, vars->line_speed);
11875 }
11876 
bnx2x_phy_init(struct link_params * params,struct link_vars * vars)11877 int bnx2x_phy_init(struct link_params *params, struct link_vars *vars)
11878 {
11879 	struct bnx2x *bp = params->bp;
11880 	DP(NETIF_MSG_LINK, "Phy Initialization started\n");
11881 	DP(NETIF_MSG_LINK, "(1) req_speed %d, req_flowctrl %d\n",
11882 		   params->req_line_speed[0], params->req_flow_ctrl[0]);
11883 	DP(NETIF_MSG_LINK, "(2) req_speed %d, req_flowctrl %d\n",
11884 		   params->req_line_speed[1], params->req_flow_ctrl[1]);
11885 	vars->link_status = 0;
11886 	vars->phy_link_up = 0;
11887 	vars->link_up = 0;
11888 	vars->line_speed = 0;
11889 	vars->duplex = DUPLEX_FULL;
11890 	vars->flow_ctrl = BNX2X_FLOW_CTRL_NONE;
11891 	vars->mac_type = MAC_TYPE_NONE;
11892 	vars->phy_flags = 0;
11893 
11894 	/* disable attentions */
11895 	bnx2x_bits_dis(bp, NIG_REG_MASK_INTERRUPT_PORT0 + params->port*4,
11896 		       (NIG_MASK_XGXS0_LINK_STATUS |
11897 			NIG_MASK_XGXS0_LINK10G |
11898 			NIG_MASK_SERDES0_LINK_STATUS |
11899 			NIG_MASK_MI_INT));
11900 
11901 	bnx2x_emac_init(params, vars);
11902 
11903 	if (params->num_phys == 0) {
11904 		DP(NETIF_MSG_LINK, "No phy found for initialization !!\n");
11905 		return -EINVAL;
11906 	}
11907 	set_phy_vars(params, vars);
11908 
11909 	DP(NETIF_MSG_LINK, "Num of phys on board: %d\n", params->num_phys);
11910 	switch (params->loopback_mode) {
11911 	case LOOPBACK_BMAC:
11912 		bnx2x_init_bmac_loopback(params, vars);
11913 		break;
11914 	case LOOPBACK_EMAC:
11915 		bnx2x_init_emac_loopback(params, vars);
11916 		break;
11917 	case LOOPBACK_XMAC:
11918 		bnx2x_init_xmac_loopback(params, vars);
11919 		break;
11920 	case LOOPBACK_UMAC:
11921 		bnx2x_init_umac_loopback(params, vars);
11922 		break;
11923 	case LOOPBACK_XGXS:
11924 	case LOOPBACK_EXT_PHY:
11925 		bnx2x_init_xgxs_loopback(params, vars);
11926 		break;
11927 	default:
11928 		if (!CHIP_IS_E3(bp)) {
11929 			if (params->switch_cfg == SWITCH_CFG_10G)
11930 				bnx2x_xgxs_deassert(params);
11931 			else
11932 				bnx2x_serdes_deassert(bp, params->port);
11933 		}
11934 		bnx2x_link_initialize(params, vars);
11935 		msleep(30);
11936 		bnx2x_link_int_enable(params);
11937 		break;
11938 	}
11939 	return 0;
11940 }
11941 
bnx2x_link_reset(struct link_params * params,struct link_vars * vars,u8 reset_ext_phy)11942 int bnx2x_link_reset(struct link_params *params, struct link_vars *vars,
11943 		     u8 reset_ext_phy)
11944 {
11945 	struct bnx2x *bp = params->bp;
11946 	u8 phy_index, port = params->port, clear_latch_ind = 0;
11947 	DP(NETIF_MSG_LINK, "Resetting the link of port %d\n", port);
11948 	/* disable attentions */
11949 	vars->link_status = 0;
11950 	bnx2x_update_mng(params, vars->link_status);
11951 	bnx2x_bits_dis(bp, NIG_REG_MASK_INTERRUPT_PORT0 + port*4,
11952 		       (NIG_MASK_XGXS0_LINK_STATUS |
11953 			NIG_MASK_XGXS0_LINK10G |
11954 			NIG_MASK_SERDES0_LINK_STATUS |
11955 			NIG_MASK_MI_INT));
11956 
11957 	/* activate nig drain */
11958 	REG_WR(bp, NIG_REG_EGRESS_DRAIN0_MODE + port*4, 1);
11959 
11960 	/* disable nig egress interface */
11961 	if (!CHIP_IS_E3(bp)) {
11962 		REG_WR(bp, NIG_REG_BMAC0_OUT_EN + port*4, 0);
11963 		REG_WR(bp, NIG_REG_EGRESS_EMAC0_OUT_EN + port*4, 0);
11964 	}
11965 
11966 	/* Stop BigMac rx */
11967 	if (!CHIP_IS_E3(bp))
11968 		bnx2x_bmac_rx_disable(bp, port);
11969 	else {
11970 		bnx2x_xmac_disable(params);
11971 		bnx2x_umac_disable(params);
11972 	}
11973 	/* disable emac */
11974 	if (!CHIP_IS_E3(bp))
11975 		REG_WR(bp, NIG_REG_NIG_EMAC0_EN + port*4, 0);
11976 
11977 	msleep(10);
11978 	/* The PHY reset is controlled by GPIO 1
11979 	 * Hold it as vars low
11980 	 */
11981 	 /* clear link led */
11982 	bnx2x_set_led(params, vars, LED_MODE_OFF, 0);
11983 
11984 	if (reset_ext_phy) {
11985 		bnx2x_set_mdio_clk(bp, params->chip_id, port);
11986 		for (phy_index = EXT_PHY1; phy_index < params->num_phys;
11987 		      phy_index++) {
11988 			if (params->phy[phy_index].link_reset) {
11989 				bnx2x_set_aer_mmd(params,
11990 						  &params->phy[phy_index]);
11991 				params->phy[phy_index].link_reset(
11992 					&params->phy[phy_index],
11993 					params);
11994 			}
11995 			if (params->phy[phy_index].flags &
11996 			    FLAGS_REARM_LATCH_SIGNAL)
11997 				clear_latch_ind = 1;
11998 		}
11999 	}
12000 
12001 	if (clear_latch_ind) {
12002 		/* Clear latching indication */
12003 		bnx2x_rearm_latch_signal(bp, port, 0);
12004 		bnx2x_bits_dis(bp, NIG_REG_LATCH_BC_0 + port*4,
12005 			       1 << NIG_LATCH_BC_ENABLE_MI_INT);
12006 	}
12007 	if (params->phy[INT_PHY].link_reset)
12008 		params->phy[INT_PHY].link_reset(
12009 			&params->phy[INT_PHY], params);
12010 
12011 	/* disable nig ingress interface */
12012 	if (!CHIP_IS_E3(bp)) {
12013 		/* reset BigMac */
12014 		REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR,
12015 		       (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << port));
12016 		REG_WR(bp, NIG_REG_BMAC0_IN_EN + port*4, 0);
12017 		REG_WR(bp, NIG_REG_EMAC0_IN_EN + port*4, 0);
12018 	} else {
12019 		u32 xmac_base = (params->port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
12020 		bnx2x_set_xumac_nig(params, 0, 0);
12021 		if (REG_RD(bp, MISC_REG_RESET_REG_2) &
12022 		    MISC_REGISTERS_RESET_REG_2_XMAC)
12023 			REG_WR(bp, xmac_base + XMAC_REG_CTRL,
12024 			       XMAC_CTRL_REG_SOFT_RESET);
12025 	}
12026 	vars->link_up = 0;
12027 	vars->phy_flags = 0;
12028 	return 0;
12029 }
12030 
12031 /****************************************************************************/
12032 /*				Common function				    */
12033 /****************************************************************************/
bnx2x_8073_common_init_phy(struct bnx2x * bp,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 chip_id)12034 static int bnx2x_8073_common_init_phy(struct bnx2x *bp,
12035 				      u32 shmem_base_path[],
12036 				      u32 shmem2_base_path[], u8 phy_index,
12037 				      u32 chip_id)
12038 {
12039 	struct bnx2x_phy phy[PORT_MAX];
12040 	struct bnx2x_phy *phy_blk[PORT_MAX];
12041 	u16 val;
12042 	s8 port = 0;
12043 	s8 port_of_path = 0;
12044 	u32 swap_val, swap_override;
12045 	swap_val = REG_RD(bp,  NIG_REG_PORT_SWAP);
12046 	swap_override = REG_RD(bp,  NIG_REG_STRAP_OVERRIDE);
12047 	port ^= (swap_val && swap_override);
12048 	bnx2x_ext_phy_hw_reset(bp, port);
12049 	/* PART1 - Reset both phys */
12050 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
12051 		u32 shmem_base, shmem2_base;
12052 		/* In E2, same phy is using for port0 of the two paths */
12053 		if (CHIP_IS_E1x(bp)) {
12054 			shmem_base = shmem_base_path[0];
12055 			shmem2_base = shmem2_base_path[0];
12056 			port_of_path = port;
12057 		} else {
12058 			shmem_base = shmem_base_path[port];
12059 			shmem2_base = shmem2_base_path[port];
12060 			port_of_path = 0;
12061 		}
12062 
12063 		/* Extract the ext phy address for the port */
12064 		if (bnx2x_populate_phy(bp, phy_index, shmem_base, shmem2_base,
12065 				       port_of_path, &phy[port]) !=
12066 		    0) {
12067 			DP(NETIF_MSG_LINK, "populate_phy failed\n");
12068 			return -EINVAL;
12069 		}
12070 		/* disable attentions */
12071 		bnx2x_bits_dis(bp, NIG_REG_MASK_INTERRUPT_PORT0 +
12072 			       port_of_path*4,
12073 			       (NIG_MASK_XGXS0_LINK_STATUS |
12074 				NIG_MASK_XGXS0_LINK10G |
12075 				NIG_MASK_SERDES0_LINK_STATUS |
12076 				NIG_MASK_MI_INT));
12077 
12078 		/* Need to take the phy out of low power mode in order
12079 			to write to access its registers */
12080 		bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
12081 			       MISC_REGISTERS_GPIO_OUTPUT_HIGH,
12082 			       port);
12083 
12084 		/* Reset the phy */
12085 		bnx2x_cl45_write(bp, &phy[port],
12086 				 MDIO_PMA_DEVAD,
12087 				 MDIO_PMA_REG_CTRL,
12088 				 1<<15);
12089 	}
12090 
12091 	/* Add delay of 150ms after reset */
12092 	msleep(150);
12093 
12094 	if (phy[PORT_0].addr & 0x1) {
12095 		phy_blk[PORT_0] = &(phy[PORT_1]);
12096 		phy_blk[PORT_1] = &(phy[PORT_0]);
12097 	} else {
12098 		phy_blk[PORT_0] = &(phy[PORT_0]);
12099 		phy_blk[PORT_1] = &(phy[PORT_1]);
12100 	}
12101 
12102 	/* PART2 - Download firmware to both phys */
12103 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
12104 		if (CHIP_IS_E1x(bp))
12105 			port_of_path = port;
12106 		else
12107 			port_of_path = 0;
12108 
12109 		DP(NETIF_MSG_LINK, "Loading spirom for phy address 0x%x\n",
12110 			   phy_blk[port]->addr);
12111 		if (bnx2x_8073_8727_external_rom_boot(bp, phy_blk[port],
12112 						      port_of_path))
12113 			return -EINVAL;
12114 
12115 		/* Only set bit 10 = 1 (Tx power down) */
12116 		bnx2x_cl45_read(bp, phy_blk[port],
12117 				MDIO_PMA_DEVAD,
12118 				MDIO_PMA_REG_TX_POWER_DOWN, &val);
12119 
12120 		/* Phase1 of TX_POWER_DOWN reset */
12121 		bnx2x_cl45_write(bp, phy_blk[port],
12122 				 MDIO_PMA_DEVAD,
12123 				 MDIO_PMA_REG_TX_POWER_DOWN,
12124 				 (val | 1<<10));
12125 	}
12126 
12127 	/*
12128 	 * Toggle Transmitter: Power down and then up with 600ms delay
12129 	 * between
12130 	 */
12131 	msleep(600);
12132 
12133 	/* PART3 - complete TX_POWER_DOWN process, and set GPIO2 back to low */
12134 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
12135 		/* Phase2 of POWER_DOWN_RESET */
12136 		/* Release bit 10 (Release Tx power down) */
12137 		bnx2x_cl45_read(bp, phy_blk[port],
12138 				MDIO_PMA_DEVAD,
12139 				MDIO_PMA_REG_TX_POWER_DOWN, &val);
12140 
12141 		bnx2x_cl45_write(bp, phy_blk[port],
12142 				MDIO_PMA_DEVAD,
12143 				MDIO_PMA_REG_TX_POWER_DOWN, (val & (~(1<<10))));
12144 		msleep(15);
12145 
12146 		/* Read modify write the SPI-ROM version select register */
12147 		bnx2x_cl45_read(bp, phy_blk[port],
12148 				MDIO_PMA_DEVAD,
12149 				MDIO_PMA_REG_EDC_FFE_MAIN, &val);
12150 		bnx2x_cl45_write(bp, phy_blk[port],
12151 				 MDIO_PMA_DEVAD,
12152 				 MDIO_PMA_REG_EDC_FFE_MAIN, (val | (1<<12)));
12153 
12154 		/* set GPIO2 back to LOW */
12155 		bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
12156 			       MISC_REGISTERS_GPIO_OUTPUT_LOW, port);
12157 	}
12158 	return 0;
12159 }
bnx2x_8726_common_init_phy(struct bnx2x * bp,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 chip_id)12160 static int bnx2x_8726_common_init_phy(struct bnx2x *bp,
12161 				      u32 shmem_base_path[],
12162 				      u32 shmem2_base_path[], u8 phy_index,
12163 				      u32 chip_id)
12164 {
12165 	u32 val;
12166 	s8 port;
12167 	struct bnx2x_phy phy;
12168 	/* Use port1 because of the static port-swap */
12169 	/* Enable the module detection interrupt */
12170 	val = REG_RD(bp, MISC_REG_GPIO_EVENT_EN);
12171 	val |= ((1<<MISC_REGISTERS_GPIO_3)|
12172 		(1<<(MISC_REGISTERS_GPIO_3 + MISC_REGISTERS_GPIO_PORT_SHIFT)));
12173 	REG_WR(bp, MISC_REG_GPIO_EVENT_EN, val);
12174 
12175 	bnx2x_ext_phy_hw_reset(bp, 0);
12176 	msleep(5);
12177 	for (port = 0; port < PORT_MAX; port++) {
12178 		u32 shmem_base, shmem2_base;
12179 
12180 		/* In E2, same phy is using for port0 of the two paths */
12181 		if (CHIP_IS_E1x(bp)) {
12182 			shmem_base = shmem_base_path[0];
12183 			shmem2_base = shmem2_base_path[0];
12184 		} else {
12185 			shmem_base = shmem_base_path[port];
12186 			shmem2_base = shmem2_base_path[port];
12187 		}
12188 		/* Extract the ext phy address for the port */
12189 		if (bnx2x_populate_phy(bp, phy_index, shmem_base, shmem2_base,
12190 				       port, &phy) !=
12191 		    0) {
12192 			DP(NETIF_MSG_LINK, "populate phy failed\n");
12193 			return -EINVAL;
12194 		}
12195 
12196 		/* Reset phy*/
12197 		bnx2x_cl45_write(bp, &phy,
12198 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_GEN_CTRL, 0x0001);
12199 
12200 
12201 		/* Set fault module detected LED on */
12202 		bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_0,
12203 			       MISC_REGISTERS_GPIO_HIGH,
12204 			       port);
12205 	}
12206 
12207 	return 0;
12208 }
bnx2x_get_ext_phy_reset_gpio(struct bnx2x * bp,u32 shmem_base,u8 * io_gpio,u8 * io_port)12209 static void bnx2x_get_ext_phy_reset_gpio(struct bnx2x *bp, u32 shmem_base,
12210 					 u8 *io_gpio, u8 *io_port)
12211 {
12212 
12213 	u32 phy_gpio_reset = REG_RD(bp, shmem_base +
12214 					  offsetof(struct shmem_region,
12215 				dev_info.port_hw_config[PORT_0].default_cfg));
12216 	switch (phy_gpio_reset) {
12217 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO0_P0:
12218 		*io_gpio = 0;
12219 		*io_port = 0;
12220 		break;
12221 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO1_P0:
12222 		*io_gpio = 1;
12223 		*io_port = 0;
12224 		break;
12225 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO2_P0:
12226 		*io_gpio = 2;
12227 		*io_port = 0;
12228 		break;
12229 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO3_P0:
12230 		*io_gpio = 3;
12231 		*io_port = 0;
12232 		break;
12233 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO0_P1:
12234 		*io_gpio = 0;
12235 		*io_port = 1;
12236 		break;
12237 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO1_P1:
12238 		*io_gpio = 1;
12239 		*io_port = 1;
12240 		break;
12241 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO2_P1:
12242 		*io_gpio = 2;
12243 		*io_port = 1;
12244 		break;
12245 	case PORT_HW_CFG_EXT_PHY_GPIO_RST_GPIO3_P1:
12246 		*io_gpio = 3;
12247 		*io_port = 1;
12248 		break;
12249 	default:
12250 		/* Don't override the io_gpio and io_port */
12251 		break;
12252 	}
12253 }
12254 
bnx2x_8727_common_init_phy(struct bnx2x * bp,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 chip_id)12255 static int bnx2x_8727_common_init_phy(struct bnx2x *bp,
12256 				      u32 shmem_base_path[],
12257 				      u32 shmem2_base_path[], u8 phy_index,
12258 				      u32 chip_id)
12259 {
12260 	s8 port, reset_gpio;
12261 	u32 swap_val, swap_override;
12262 	struct bnx2x_phy phy[PORT_MAX];
12263 	struct bnx2x_phy *phy_blk[PORT_MAX];
12264 	s8 port_of_path;
12265 	swap_val = REG_RD(bp, NIG_REG_PORT_SWAP);
12266 	swap_override = REG_RD(bp, NIG_REG_STRAP_OVERRIDE);
12267 
12268 	reset_gpio = MISC_REGISTERS_GPIO_1;
12269 	port = 1;
12270 
12271 	/*
12272 	 * Retrieve the reset gpio/port which control the reset.
12273 	 * Default is GPIO1, PORT1
12274 	 */
12275 	bnx2x_get_ext_phy_reset_gpio(bp, shmem_base_path[0],
12276 				     (u8 *)&reset_gpio, (u8 *)&port);
12277 
12278 	/* Calculate the port based on port swap */
12279 	port ^= (swap_val && swap_override);
12280 
12281 	/* Initiate PHY reset*/
12282 	bnx2x_set_gpio(bp, reset_gpio, MISC_REGISTERS_GPIO_OUTPUT_LOW,
12283 		       port);
12284 	msleep(1);
12285 	bnx2x_set_gpio(bp, reset_gpio, MISC_REGISTERS_GPIO_OUTPUT_HIGH,
12286 		       port);
12287 
12288 	msleep(5);
12289 
12290 	/* PART1 - Reset both phys */
12291 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
12292 		u32 shmem_base, shmem2_base;
12293 
12294 		/* In E2, same phy is using for port0 of the two paths */
12295 		if (CHIP_IS_E1x(bp)) {
12296 			shmem_base = shmem_base_path[0];
12297 			shmem2_base = shmem2_base_path[0];
12298 			port_of_path = port;
12299 		} else {
12300 			shmem_base = shmem_base_path[port];
12301 			shmem2_base = shmem2_base_path[port];
12302 			port_of_path = 0;
12303 		}
12304 
12305 		/* Extract the ext phy address for the port */
12306 		if (bnx2x_populate_phy(bp, phy_index, shmem_base, shmem2_base,
12307 				       port_of_path, &phy[port]) !=
12308 				       0) {
12309 			DP(NETIF_MSG_LINK, "populate phy failed\n");
12310 			return -EINVAL;
12311 		}
12312 		/* disable attentions */
12313 		bnx2x_bits_dis(bp, NIG_REG_MASK_INTERRUPT_PORT0 +
12314 			       port_of_path*4,
12315 			       (NIG_MASK_XGXS0_LINK_STATUS |
12316 				NIG_MASK_XGXS0_LINK10G |
12317 				NIG_MASK_SERDES0_LINK_STATUS |
12318 				NIG_MASK_MI_INT));
12319 
12320 
12321 		/* Reset the phy */
12322 		bnx2x_cl45_write(bp, &phy[port],
12323 				 MDIO_PMA_DEVAD, MDIO_PMA_REG_CTRL, 1<<15);
12324 	}
12325 
12326 	/* Add delay of 150ms after reset */
12327 	msleep(150);
12328 	if (phy[PORT_0].addr & 0x1) {
12329 		phy_blk[PORT_0] = &(phy[PORT_1]);
12330 		phy_blk[PORT_1] = &(phy[PORT_0]);
12331 	} else {
12332 		phy_blk[PORT_0] = &(phy[PORT_0]);
12333 		phy_blk[PORT_1] = &(phy[PORT_1]);
12334 	}
12335 	/* PART2 - Download firmware to both phys */
12336 	for (port = PORT_MAX - 1; port >= PORT_0; port--) {
12337 		if (CHIP_IS_E1x(bp))
12338 			port_of_path = port;
12339 		else
12340 			port_of_path = 0;
12341 		DP(NETIF_MSG_LINK, "Loading spirom for phy address 0x%x\n",
12342 			   phy_blk[port]->addr);
12343 		if (bnx2x_8073_8727_external_rom_boot(bp, phy_blk[port],
12344 						      port_of_path))
12345 			return -EINVAL;
12346 		/* Disable PHY transmitter output */
12347 		bnx2x_cl45_write(bp, phy_blk[port],
12348 				 MDIO_PMA_DEVAD,
12349 				 MDIO_PMA_REG_TX_DISABLE, 1);
12350 
12351 	}
12352 	return 0;
12353 }
12354 
bnx2x_84833_common_init_phy(struct bnx2x * bp,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 chip_id)12355 static int bnx2x_84833_common_init_phy(struct bnx2x *bp,
12356 						u32 shmem_base_path[],
12357 						u32 shmem2_base_path[],
12358 						u8 phy_index,
12359 						u32 chip_id)
12360 {
12361 	u8 reset_gpios;
12362 	reset_gpios = bnx2x_84833_get_reset_gpios(bp, shmem_base_path, chip_id);
12363 	bnx2x_set_mult_gpio(bp, reset_gpios, MISC_REGISTERS_GPIO_OUTPUT_LOW);
12364 	udelay(10);
12365 	bnx2x_set_mult_gpio(bp, reset_gpios, MISC_REGISTERS_GPIO_OUTPUT_HIGH);
12366 	DP(NETIF_MSG_LINK, "84833 reset pulse on pin values 0x%x\n",
12367 		reset_gpios);
12368 	return 0;
12369 }
12370 
bnx2x_84833_pre_init_phy(struct bnx2x * bp,struct bnx2x_phy * phy)12371 static int bnx2x_84833_pre_init_phy(struct bnx2x *bp,
12372 					       struct bnx2x_phy *phy)
12373 {
12374 	u16 val, cnt;
12375 	/* Wait for FW completing its initialization. */
12376 	for (cnt = 0; cnt < 1500; cnt++) {
12377 		bnx2x_cl45_read(bp, phy,
12378 				MDIO_PMA_DEVAD,
12379 				MDIO_PMA_REG_CTRL, &val);
12380 		if (!(val & (1<<15)))
12381 			break;
12382 		msleep(1);
12383 	}
12384 	if (cnt >= 1500) {
12385 		DP(NETIF_MSG_LINK, "84833 reset timeout\n");
12386 		return -EINVAL;
12387 	}
12388 
12389 	/* Put the port in super isolate mode. */
12390 	bnx2x_cl45_read(bp, phy,
12391 			MDIO_CTL_DEVAD,
12392 			MDIO_84833_TOP_CFG_XGPHY_STRAP1, &val);
12393 	val |= MDIO_84833_SUPER_ISOLATE;
12394 	bnx2x_cl45_write(bp, phy,
12395 			 MDIO_CTL_DEVAD,
12396 			 MDIO_84833_TOP_CFG_XGPHY_STRAP1, val);
12397 
12398 	/* Save spirom version */
12399 	bnx2x_save_848xx_spirom_version(phy, bp, PORT_0);
12400 	return 0;
12401 }
12402 
bnx2x_pre_init_phy(struct bnx2x * bp,u32 shmem_base,u32 shmem2_base,u32 chip_id)12403 int bnx2x_pre_init_phy(struct bnx2x *bp,
12404 				  u32 shmem_base,
12405 				  u32 shmem2_base,
12406 				  u32 chip_id)
12407 {
12408 	int rc = 0;
12409 	struct bnx2x_phy phy;
12410 	bnx2x_set_mdio_clk(bp, chip_id, PORT_0);
12411 	if (bnx2x_populate_phy(bp, EXT_PHY1, shmem_base, shmem2_base,
12412 			       PORT_0, &phy)) {
12413 		DP(NETIF_MSG_LINK, "populate_phy failed\n");
12414 		return -EINVAL;
12415 	}
12416 	switch (phy.type) {
12417 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833:
12418 		rc = bnx2x_84833_pre_init_phy(bp, &phy);
12419 		break;
12420 	default:
12421 		break;
12422 	}
12423 	return rc;
12424 }
12425 
bnx2x_ext_phy_common_init(struct bnx2x * bp,u32 shmem_base_path[],u32 shmem2_base_path[],u8 phy_index,u32 ext_phy_type,u32 chip_id)12426 static int bnx2x_ext_phy_common_init(struct bnx2x *bp, u32 shmem_base_path[],
12427 				     u32 shmem2_base_path[], u8 phy_index,
12428 				     u32 ext_phy_type, u32 chip_id)
12429 {
12430 	int rc = 0;
12431 
12432 	switch (ext_phy_type) {
12433 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8073:
12434 		rc = bnx2x_8073_common_init_phy(bp, shmem_base_path,
12435 						shmem2_base_path,
12436 						phy_index, chip_id);
12437 		break;
12438 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8722:
12439 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727:
12440 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8727_NOC:
12441 		rc = bnx2x_8727_common_init_phy(bp, shmem_base_path,
12442 						shmem2_base_path,
12443 						phy_index, chip_id);
12444 		break;
12445 
12446 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726:
12447 		/*
12448 		 * GPIO1 affects both ports, so there's need to pull
12449 		 * it for single port alone
12450 		 */
12451 		rc = bnx2x_8726_common_init_phy(bp, shmem_base_path,
12452 						shmem2_base_path,
12453 						phy_index, chip_id);
12454 		break;
12455 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM84833:
12456 		/*
12457 		 * GPIO3's are linked, and so both need to be toggled
12458 		 * to obtain required 2us pulse.
12459 		 */
12460 		rc = bnx2x_84833_common_init_phy(bp, shmem_base_path,
12461 						shmem2_base_path,
12462 						phy_index, chip_id);
12463 		break;
12464 	case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE:
12465 		rc = -EINVAL;
12466 		break;
12467 	default:
12468 		DP(NETIF_MSG_LINK,
12469 			   "ext_phy 0x%x common init not required\n",
12470 			   ext_phy_type);
12471 		break;
12472 	}
12473 
12474 	if (rc != 0)
12475 		netdev_err(bp->dev,  "Warning: PHY was not initialized,"
12476 				      " Port %d\n",
12477 			 0);
12478 	return rc;
12479 }
12480 
bnx2x_common_init_phy(struct bnx2x * bp,u32 shmem_base_path[],u32 shmem2_base_path[],u32 chip_id)12481 int bnx2x_common_init_phy(struct bnx2x *bp, u32 shmem_base_path[],
12482 			  u32 shmem2_base_path[], u32 chip_id)
12483 {
12484 	int rc = 0;
12485 	u32 phy_ver, val;
12486 	u8 phy_index = 0;
12487 	u32 ext_phy_type, ext_phy_config;
12488 	bnx2x_set_mdio_clk(bp, chip_id, PORT_0);
12489 	bnx2x_set_mdio_clk(bp, chip_id, PORT_1);
12490 	DP(NETIF_MSG_LINK, "Begin common phy init\n");
12491 	if (CHIP_IS_E3(bp)) {
12492 		/* Enable EPIO */
12493 		val = REG_RD(bp, MISC_REG_GEN_PURP_HWG);
12494 		REG_WR(bp, MISC_REG_GEN_PURP_HWG, val | 1);
12495 	}
12496 	/* Check if common init was already done */
12497 	phy_ver = REG_RD(bp, shmem_base_path[0] +
12498 			 offsetof(struct shmem_region,
12499 				  port_mb[PORT_0].ext_phy_fw_version));
12500 	if (phy_ver) {
12501 		DP(NETIF_MSG_LINK, "Not doing common init; phy ver is 0x%x\n",
12502 			       phy_ver);
12503 		return 0;
12504 	}
12505 
12506 	/* Read the ext_phy_type for arbitrary port(0) */
12507 	for (phy_index = EXT_PHY1; phy_index < MAX_PHYS;
12508 	      phy_index++) {
12509 		ext_phy_config = bnx2x_get_ext_phy_config(bp,
12510 							  shmem_base_path[0],
12511 							  phy_index, 0);
12512 		ext_phy_type = XGXS_EXT_PHY_TYPE(ext_phy_config);
12513 		rc |= bnx2x_ext_phy_common_init(bp, shmem_base_path,
12514 						shmem2_base_path,
12515 						phy_index, ext_phy_type,
12516 						chip_id);
12517 	}
12518 	return rc;
12519 }
12520 
bnx2x_check_over_curr(struct link_params * params,struct link_vars * vars)12521 static void bnx2x_check_over_curr(struct link_params *params,
12522 				  struct link_vars *vars)
12523 {
12524 	struct bnx2x *bp = params->bp;
12525 	u32 cfg_pin;
12526 	u8 port = params->port;
12527 	u32 pin_val;
12528 
12529 	cfg_pin = (REG_RD(bp, params->shmem_base +
12530 			  offsetof(struct shmem_region,
12531 			       dev_info.port_hw_config[port].e3_cmn_pin_cfg1)) &
12532 		   PORT_HW_CFG_E3_OVER_CURRENT_MASK) >>
12533 		PORT_HW_CFG_E3_OVER_CURRENT_SHIFT;
12534 
12535 	/* Ignore check if no external input PIN available */
12536 	if (bnx2x_get_cfg_pin(bp, cfg_pin, &pin_val) != 0)
12537 		return;
12538 
12539 	if (!pin_val) {
12540 		if ((vars->phy_flags & PHY_OVER_CURRENT_FLAG) == 0) {
12541 			netdev_err(bp->dev, "Error:  Power fault on Port %d has"
12542 					    " been detected and the power to "
12543 					    "that SFP+ module has been removed"
12544 					    " to prevent failure of the card."
12545 					    " Please remove the SFP+ module and"
12546 					    " restart the system to clear this"
12547 					    " error.\n",
12548 			 params->port);
12549 			vars->phy_flags |= PHY_OVER_CURRENT_FLAG;
12550 		}
12551 	} else
12552 		vars->phy_flags &= ~PHY_OVER_CURRENT_FLAG;
12553 }
12554 
bnx2x_analyze_link_error(struct link_params * params,struct link_vars * vars,u32 lss_status)12555 static void bnx2x_analyze_link_error(struct link_params *params,
12556 				     struct link_vars *vars, u32 lss_status)
12557 {
12558 	struct bnx2x *bp = params->bp;
12559 	/* Compare new value with previous value */
12560 	u8 led_mode;
12561 	u32 half_open_conn = (vars->phy_flags & PHY_HALF_OPEN_CONN_FLAG) > 0;
12562 
12563 	if ((lss_status ^ half_open_conn) == 0)
12564 		return;
12565 
12566 	/* If values differ */
12567 	DP(NETIF_MSG_LINK, "Link changed:%x %x->%x\n", vars->link_up,
12568 		       half_open_conn, lss_status);
12569 
12570 	/*
12571 	 * a. Update shmem->link_status accordingly
12572 	 * b. Update link_vars->link_up
12573 	 */
12574 	if (lss_status) {
12575 		DP(NETIF_MSG_LINK, "Remote Fault detected !!!\n");
12576 		vars->link_status &= ~LINK_STATUS_LINK_UP;
12577 		vars->link_up = 0;
12578 		vars->phy_flags |= PHY_HALF_OPEN_CONN_FLAG;
12579 		/*
12580 		 * Set LED mode to off since the PHY doesn't know about these
12581 		 * errors
12582 		 */
12583 		led_mode = LED_MODE_OFF;
12584 	} else {
12585 		DP(NETIF_MSG_LINK, "Remote Fault cleared\n");
12586 		vars->link_status |= LINK_STATUS_LINK_UP;
12587 		vars->link_up = 1;
12588 		vars->phy_flags &= ~PHY_HALF_OPEN_CONN_FLAG;
12589 		led_mode = LED_MODE_OPER;
12590 	}
12591 	/* Update the LED according to the link state */
12592 	bnx2x_set_led(params, vars, led_mode, SPEED_10000);
12593 
12594 	/* Update link status in the shared memory */
12595 	bnx2x_update_mng(params, vars->link_status);
12596 
12597 	/* C. Trigger General Attention */
12598 	vars->periodic_flags |= PERIODIC_FLAGS_LINK_EVENT;
12599 	bnx2x_notify_link_changed(bp);
12600 }
12601 
12602 /******************************************************************************
12603 * Description:
12604 *	This function checks for half opened connection change indication.
12605 *	When such change occurs, it calls the bnx2x_analyze_link_error
12606 *	to check if Remote Fault is set or cleared. Reception of remote fault
12607 *	status message in the MAC indicates that the peer's MAC has detected
12608 *	a fault, for example, due to break in the TX side of fiber.
12609 *
12610 ******************************************************************************/
bnx2x_check_half_open_conn(struct link_params * params,struct link_vars * vars)12611 static void bnx2x_check_half_open_conn(struct link_params *params,
12612 				       struct link_vars *vars)
12613 {
12614 	struct bnx2x *bp = params->bp;
12615 	u32 lss_status = 0;
12616 	u32 mac_base;
12617 	/* In case link status is physically up @ 10G do */
12618 	if ((vars->phy_flags & PHY_PHYSICAL_LINK_FLAG) == 0)
12619 		return;
12620 
12621 	if (CHIP_IS_E3(bp) &&
12622 	    (REG_RD(bp, MISC_REG_RESET_REG_2) &
12623 	      (MISC_REGISTERS_RESET_REG_2_XMAC))) {
12624 		/* Check E3 XMAC */
12625 		/*
12626 		 * Note that link speed cannot be queried here, since it may be
12627 		 * zero while link is down. In case UMAC is active, LSS will
12628 		 * simply not be set
12629 		 */
12630 		mac_base = (params->port) ? GRCBASE_XMAC1 : GRCBASE_XMAC0;
12631 
12632 		/* Clear stick bits (Requires rising edge) */
12633 		REG_WR(bp, mac_base + XMAC_REG_CLEAR_RX_LSS_STATUS, 0);
12634 		REG_WR(bp, mac_base + XMAC_REG_CLEAR_RX_LSS_STATUS,
12635 		       XMAC_CLEAR_RX_LSS_STATUS_REG_CLEAR_LOCAL_FAULT_STATUS |
12636 		       XMAC_CLEAR_RX_LSS_STATUS_REG_CLEAR_REMOTE_FAULT_STATUS);
12637 		if (REG_RD(bp, mac_base + XMAC_REG_RX_LSS_STATUS))
12638 			lss_status = 1;
12639 
12640 		bnx2x_analyze_link_error(params, vars, lss_status);
12641 	} else if (REG_RD(bp, MISC_REG_RESET_REG_2) &
12642 		   (MISC_REGISTERS_RESET_REG_2_RST_BMAC0 << params->port)) {
12643 		/* Check E1X / E2 BMAC */
12644 		u32 lss_status_reg;
12645 		u32 wb_data[2];
12646 		mac_base = params->port ? NIG_REG_INGRESS_BMAC1_MEM :
12647 			NIG_REG_INGRESS_BMAC0_MEM;
12648 		/*  Read BIGMAC_REGISTER_RX_LSS_STATUS */
12649 		if (CHIP_IS_E2(bp))
12650 			lss_status_reg = BIGMAC2_REGISTER_RX_LSS_STAT;
12651 		else
12652 			lss_status_reg = BIGMAC_REGISTER_RX_LSS_STATUS;
12653 
12654 		REG_RD_DMAE(bp, mac_base + lss_status_reg, wb_data, 2);
12655 		lss_status = (wb_data[0] > 0);
12656 
12657 		bnx2x_analyze_link_error(params, vars, lss_status);
12658 	}
12659 }
12660 
bnx2x_period_func(struct link_params * params,struct link_vars * vars)12661 void bnx2x_period_func(struct link_params *params, struct link_vars *vars)
12662 {
12663 	struct bnx2x *bp = params->bp;
12664 	u16 phy_idx;
12665 	for (phy_idx = INT_PHY; phy_idx < MAX_PHYS; phy_idx++) {
12666 		if (params->phy[phy_idx].flags & FLAGS_TX_ERROR_CHECK) {
12667 			bnx2x_set_aer_mmd(params, &params->phy[phy_idx]);
12668 			bnx2x_check_half_open_conn(params, vars);
12669 			break;
12670 		}
12671 	}
12672 
12673 	if (CHIP_IS_E3(bp)) {
12674 		struct bnx2x_phy *phy = &params->phy[INT_PHY];
12675 		bnx2x_set_aer_mmd(params, phy);
12676 		bnx2x_check_over_curr(params, vars);
12677 		bnx2x_warpcore_config_runtime(phy, params, vars);
12678 	}
12679 
12680 }
12681 
bnx2x_hw_lock_required(struct bnx2x * bp,u32 shmem_base,u32 shmem2_base)12682 u8 bnx2x_hw_lock_required(struct bnx2x *bp, u32 shmem_base, u32 shmem2_base)
12683 {
12684 	u8 phy_index;
12685 	struct bnx2x_phy phy;
12686 	for (phy_index = INT_PHY; phy_index < MAX_PHYS;
12687 	      phy_index++) {
12688 		if (bnx2x_populate_phy(bp, phy_index, shmem_base, shmem2_base,
12689 				       0, &phy) != 0) {
12690 			DP(NETIF_MSG_LINK, "populate phy failed\n");
12691 			return 0;
12692 		}
12693 
12694 		if (phy.flags & FLAGS_HW_LOCK_REQUIRED)
12695 			return 1;
12696 	}
12697 	return 0;
12698 }
12699 
bnx2x_fan_failure_det_req(struct bnx2x * bp,u32 shmem_base,u32 shmem2_base,u8 port)12700 u8 bnx2x_fan_failure_det_req(struct bnx2x *bp,
12701 			     u32 shmem_base,
12702 			     u32 shmem2_base,
12703 			     u8 port)
12704 {
12705 	u8 phy_index, fan_failure_det_req = 0;
12706 	struct bnx2x_phy phy;
12707 	for (phy_index = EXT_PHY1; phy_index < MAX_PHYS;
12708 	      phy_index++) {
12709 		if (bnx2x_populate_phy(bp, phy_index, shmem_base, shmem2_base,
12710 				       port, &phy)
12711 		    != 0) {
12712 			DP(NETIF_MSG_LINK, "populate phy failed\n");
12713 			return 0;
12714 		}
12715 		fan_failure_det_req |= (phy.flags &
12716 					FLAGS_FAN_FAILURE_DET_REQ);
12717 	}
12718 	return fan_failure_det_req;
12719 }
12720 
bnx2x_hw_reset_phy(struct link_params * params)12721 void bnx2x_hw_reset_phy(struct link_params *params)
12722 {
12723 	u8 phy_index;
12724 	struct bnx2x *bp = params->bp;
12725 	bnx2x_update_mng(params, 0);
12726 	bnx2x_bits_dis(bp, NIG_REG_MASK_INTERRUPT_PORT0 + params->port*4,
12727 		       (NIG_MASK_XGXS0_LINK_STATUS |
12728 			NIG_MASK_XGXS0_LINK10G |
12729 			NIG_MASK_SERDES0_LINK_STATUS |
12730 			NIG_MASK_MI_INT));
12731 
12732 	for (phy_index = INT_PHY; phy_index < MAX_PHYS;
12733 	      phy_index++) {
12734 		if (params->phy[phy_index].hw_reset) {
12735 			params->phy[phy_index].hw_reset(
12736 				&params->phy[phy_index],
12737 				params);
12738 			params->phy[phy_index] = phy_null;
12739 		}
12740 	}
12741 }
12742 
bnx2x_init_mod_abs_int(struct bnx2x * bp,struct link_vars * vars,u32 chip_id,u32 shmem_base,u32 shmem2_base,u8 port)12743 void bnx2x_init_mod_abs_int(struct bnx2x *bp, struct link_vars *vars,
12744 			    u32 chip_id, u32 shmem_base, u32 shmem2_base,
12745 			    u8 port)
12746 {
12747 	u8 gpio_num = 0xff, gpio_port = 0xff, phy_index;
12748 	u32 val;
12749 	u32 offset, aeu_mask, swap_val, swap_override, sync_offset;
12750 	if (CHIP_IS_E3(bp)) {
12751 		if (bnx2x_get_mod_abs_int_cfg(bp, chip_id,
12752 					      shmem_base,
12753 					      port,
12754 					      &gpio_num,
12755 					      &gpio_port) != 0)
12756 			return;
12757 	} else {
12758 		struct bnx2x_phy phy;
12759 		for (phy_index = EXT_PHY1; phy_index < MAX_PHYS;
12760 		      phy_index++) {
12761 			if (bnx2x_populate_phy(bp, phy_index, shmem_base,
12762 					       shmem2_base, port, &phy)
12763 			    != 0) {
12764 				DP(NETIF_MSG_LINK, "populate phy failed\n");
12765 				return;
12766 			}
12767 			if (phy.type == PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8726) {
12768 				gpio_num = MISC_REGISTERS_GPIO_3;
12769 				gpio_port = port;
12770 				break;
12771 			}
12772 		}
12773 	}
12774 
12775 	if (gpio_num == 0xff)
12776 		return;
12777 
12778 	/* Set GPIO3 to trigger SFP+ module insertion/removal */
12779 	bnx2x_set_gpio(bp, gpio_num, MISC_REGISTERS_GPIO_INPUT_HI_Z, gpio_port);
12780 
12781 	swap_val = REG_RD(bp, NIG_REG_PORT_SWAP);
12782 	swap_override = REG_RD(bp, NIG_REG_STRAP_OVERRIDE);
12783 	gpio_port ^= (swap_val && swap_override);
12784 
12785 	vars->aeu_int_mask = AEU_INPUTS_ATTN_BITS_GPIO0_FUNCTION_0 <<
12786 		(gpio_num + (gpio_port << 2));
12787 
12788 	sync_offset = shmem_base +
12789 		offsetof(struct shmem_region,
12790 			 dev_info.port_hw_config[port].aeu_int_mask);
12791 	REG_WR(bp, sync_offset, vars->aeu_int_mask);
12792 
12793 	DP(NETIF_MSG_LINK, "Setting MOD_ABS (GPIO%d_P%d) AEU to 0x%x\n",
12794 		       gpio_num, gpio_port, vars->aeu_int_mask);
12795 
12796 	if (port == 0)
12797 		offset = MISC_REG_AEU_ENABLE1_FUNC_0_OUT_0;
12798 	else
12799 		offset = MISC_REG_AEU_ENABLE1_FUNC_1_OUT_0;
12800 
12801 	/* Open appropriate AEU for interrupts */
12802 	aeu_mask = REG_RD(bp, offset);
12803 	aeu_mask |= vars->aeu_int_mask;
12804 	REG_WR(bp, offset, aeu_mask);
12805 
12806 	/* Enable the GPIO to trigger interrupt */
12807 	val = REG_RD(bp, MISC_REG_GPIO_EVENT_EN);
12808 	val |= 1 << (gpio_num + (gpio_port << 2));
12809 	REG_WR(bp, MISC_REG_GPIO_EVENT_EN, val);
12810 }
12811