1 /*
2  * Copyright (c) 2004, 2005 Topspin Communications.  All rights reserved.
3  * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
4  * Copyright (c) 2005, 2006, 2007 Cisco Systems.  All rights reserved.
5  * Copyright (c) 2005, 2006, 2007, 2008 Mellanox Technologies. All rights reserved.
6  * Copyright (c) 2004 Voltaire, Inc. All rights reserved.
7  *
8  * This software is available to you under a choice of one of two
9  * licenses.  You may choose to be licensed under the terms of the GNU
10  * General Public License (GPL) Version 2, available from the file
11  * COPYING in the main directory of this source tree, or the
12  * OpenIB.org BSD license below:
13  *
14  *     Redistribution and use in source and binary forms, with or
15  *     without modification, are permitted provided that the following
16  *     conditions are met:
17  *
18  *      - Redistributions of source code must retain the above
19  *        copyright notice, this list of conditions and the following
20  *        disclaimer.
21  *
22  *      - Redistributions in binary form must reproduce the above
23  *        copyright notice, this list of conditions and the following
24  *        disclaimer in the documentation and/or other materials
25  *        provided with the distribution.
26  *
27  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
28  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
29  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
30  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
31  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
32  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
33  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
34  * SOFTWARE.
35  */
36 
37 #ifndef MLX4_H
38 #define MLX4_H
39 
40 #include <linux/mutex.h>
41 #include <linux/radix-tree.h>
42 #include <linux/timer.h>
43 #include <linux/semaphore.h>
44 #include <linux/workqueue.h>
45 
46 #include <linux/mlx4/device.h>
47 #include <linux/mlx4/driver.h>
48 #include <linux/mlx4/doorbell.h>
49 #include <linux/mlx4/cmd.h>
50 
51 #define DRV_NAME	"mlx4_core"
52 #define PFX		DRV_NAME ": "
53 #define DRV_VERSION	"1.1"
54 #define DRV_RELDATE	"Dec, 2011"
55 
56 enum {
57 	MLX4_HCR_BASE		= 0x80680,
58 	MLX4_HCR_SIZE		= 0x0001c,
59 	MLX4_CLR_INT_SIZE	= 0x00008,
60 	MLX4_SLAVE_COMM_BASE	= 0x0,
61 	MLX4_COMM_PAGESIZE	= 0x1000
62 };
63 
64 enum {
65 	MLX4_MAX_MGM_ENTRY_SIZE = 0x1000,
66 	MLX4_MAX_QP_PER_MGM	= 4 * (MLX4_MAX_MGM_ENTRY_SIZE / 16 - 2),
67 	MLX4_MTT_ENTRY_PER_SEG	= 8,
68 };
69 
70 enum {
71 	MLX4_NUM_PDS		= 1 << 15
72 };
73 
74 enum {
75 	MLX4_CMPT_TYPE_QP	= 0,
76 	MLX4_CMPT_TYPE_SRQ	= 1,
77 	MLX4_CMPT_TYPE_CQ	= 2,
78 	MLX4_CMPT_TYPE_EQ	= 3,
79 	MLX4_CMPT_NUM_TYPE
80 };
81 
82 enum {
83 	MLX4_CMPT_SHIFT		= 24,
84 	MLX4_NUM_CMPTS		= MLX4_CMPT_NUM_TYPE << MLX4_CMPT_SHIFT
85 };
86 
87 enum mlx4_mr_state {
88 	MLX4_MR_DISABLED = 0,
89 	MLX4_MR_EN_HW,
90 	MLX4_MR_EN_SW
91 };
92 
93 #define MLX4_COMM_TIME		10000
94 enum {
95 	MLX4_COMM_CMD_RESET,
96 	MLX4_COMM_CMD_VHCR0,
97 	MLX4_COMM_CMD_VHCR1,
98 	MLX4_COMM_CMD_VHCR2,
99 	MLX4_COMM_CMD_VHCR_EN,
100 	MLX4_COMM_CMD_VHCR_POST,
101 	MLX4_COMM_CMD_FLR = 254
102 };
103 
104 /*The flag indicates that the slave should delay the RESET cmd*/
105 #define MLX4_DELAY_RESET_SLAVE 0xbbbbbbb
106 /*indicates how many retries will be done if we are in the middle of FLR*/
107 #define NUM_OF_RESET_RETRIES	10
108 #define SLEEP_TIME_IN_RESET	(2 * 1000)
109 enum mlx4_resource {
110 	RES_QP,
111 	RES_CQ,
112 	RES_SRQ,
113 	RES_XRCD,
114 	RES_MPT,
115 	RES_MTT,
116 	RES_MAC,
117 	RES_VLAN,
118 	RES_EQ,
119 	RES_COUNTER,
120 	MLX4_NUM_OF_RESOURCE_TYPE
121 };
122 
123 enum mlx4_alloc_mode {
124 	RES_OP_RESERVE,
125 	RES_OP_RESERVE_AND_MAP,
126 	RES_OP_MAP_ICM,
127 };
128 
129 
130 /*
131  *Virtual HCR structures.
132  * mlx4_vhcr is the sw representation, in machine endianess
133  *
134  * mlx4_vhcr_cmd is the formalized structure, the one that is passed
135  * to FW to go through communication channel.
136  * It is big endian, and has the same structure as the physical HCR
137  * used by command interface
138  */
139 struct mlx4_vhcr {
140 	u64	in_param;
141 	u64	out_param;
142 	u32	in_modifier;
143 	u32	errno;
144 	u16	op;
145 	u16	token;
146 	u8	op_modifier;
147 	u8	e_bit;
148 };
149 
150 struct mlx4_vhcr_cmd {
151 	__be64 in_param;
152 	__be32 in_modifier;
153 	__be64 out_param;
154 	__be16 token;
155 	u16 reserved;
156 	u8 status;
157 	u8 flags;
158 	__be16 opcode;
159 };
160 
161 struct mlx4_cmd_info {
162 	u16 opcode;
163 	bool has_inbox;
164 	bool has_outbox;
165 	bool out_is_imm;
166 	bool encode_slave_id;
167 	int (*verify)(struct mlx4_dev *dev, int slave, struct mlx4_vhcr *vhcr,
168 		      struct mlx4_cmd_mailbox *inbox);
169 	int (*wrapper)(struct mlx4_dev *dev, int slave, struct mlx4_vhcr *vhcr,
170 		       struct mlx4_cmd_mailbox *inbox,
171 		       struct mlx4_cmd_mailbox *outbox,
172 		       struct mlx4_cmd_info *cmd);
173 };
174 
175 #ifdef CONFIG_MLX4_DEBUG
176 extern int mlx4_debug_level;
177 #else /* CONFIG_MLX4_DEBUG */
178 #define mlx4_debug_level	(0)
179 #endif /* CONFIG_MLX4_DEBUG */
180 
181 #define mlx4_dbg(mdev, format, arg...)					\
182 do {									\
183 	if (mlx4_debug_level)						\
184 		dev_printk(KERN_DEBUG, &mdev->pdev->dev, format, ##arg); \
185 } while (0)
186 
187 #define mlx4_err(mdev, format, arg...) \
188 	dev_err(&mdev->pdev->dev, format, ##arg)
189 #define mlx4_info(mdev, format, arg...) \
190 	dev_info(&mdev->pdev->dev, format, ##arg)
191 #define mlx4_warn(mdev, format, arg...) \
192 	dev_warn(&mdev->pdev->dev, format, ##arg)
193 
194 extern int mlx4_log_num_mgm_entry_size;
195 extern int log_mtts_per_seg;
196 
197 #define MLX4_MAX_NUM_SLAVES	(MLX4_MAX_NUM_PF + MLX4_MAX_NUM_VF)
198 #define ALL_SLAVES 0xff
199 
200 struct mlx4_bitmap {
201 	u32			last;
202 	u32			top;
203 	u32			max;
204 	u32                     reserved_top;
205 	u32			mask;
206 	u32			avail;
207 	spinlock_t		lock;
208 	unsigned long	       *table;
209 };
210 
211 struct mlx4_buddy {
212 	unsigned long	      **bits;
213 	unsigned int	       *num_free;
214 	int			max_order;
215 	spinlock_t		lock;
216 };
217 
218 struct mlx4_icm;
219 
220 struct mlx4_icm_table {
221 	u64			virt;
222 	int			num_icm;
223 	int			num_obj;
224 	int			obj_size;
225 	int			lowmem;
226 	int			coherent;
227 	struct mutex		mutex;
228 	struct mlx4_icm	      **icm;
229 };
230 
231 /*
232  * Must be packed because mtt_seg is 64 bits but only aligned to 32 bits.
233  */
234 struct mlx4_mpt_entry {
235 	__be32 flags;
236 	__be32 qpn;
237 	__be32 key;
238 	__be32 pd_flags;
239 	__be64 start;
240 	__be64 length;
241 	__be32 lkey;
242 	__be32 win_cnt;
243 	u8	reserved1[3];
244 	u8	mtt_rep;
245 	__be64 mtt_addr;
246 	__be32 mtt_sz;
247 	__be32 entity_size;
248 	__be32 first_byte_offset;
249 } __packed;
250 
251 /*
252  * Must be packed because start is 64 bits but only aligned to 32 bits.
253  */
254 struct mlx4_eq_context {
255 	__be32			flags;
256 	u16			reserved1[3];
257 	__be16			page_offset;
258 	u8			log_eq_size;
259 	u8			reserved2[4];
260 	u8			eq_period;
261 	u8			reserved3;
262 	u8			eq_max_count;
263 	u8			reserved4[3];
264 	u8			intr;
265 	u8			log_page_size;
266 	u8			reserved5[2];
267 	u8			mtt_base_addr_h;
268 	__be32			mtt_base_addr_l;
269 	u32			reserved6[2];
270 	__be32			consumer_index;
271 	__be32			producer_index;
272 	u32			reserved7[4];
273 };
274 
275 struct mlx4_cq_context {
276 	__be32			flags;
277 	u16			reserved1[3];
278 	__be16			page_offset;
279 	__be32			logsize_usrpage;
280 	__be16			cq_period;
281 	__be16			cq_max_count;
282 	u8			reserved2[3];
283 	u8			comp_eqn;
284 	u8			log_page_size;
285 	u8			reserved3[2];
286 	u8			mtt_base_addr_h;
287 	__be32			mtt_base_addr_l;
288 	__be32			last_notified_index;
289 	__be32			solicit_producer_index;
290 	__be32			consumer_index;
291 	__be32			producer_index;
292 	u32			reserved4[2];
293 	__be64			db_rec_addr;
294 };
295 
296 struct mlx4_srq_context {
297 	__be32			state_logsize_srqn;
298 	u8			logstride;
299 	u8			reserved1;
300 	__be16			xrcd;
301 	__be32			pg_offset_cqn;
302 	u32			reserved2;
303 	u8			log_page_size;
304 	u8			reserved3[2];
305 	u8			mtt_base_addr_h;
306 	__be32			mtt_base_addr_l;
307 	__be32			pd;
308 	__be16			limit_watermark;
309 	__be16			wqe_cnt;
310 	u16			reserved4;
311 	__be16			wqe_counter;
312 	u32			reserved5;
313 	__be64			db_rec_addr;
314 };
315 
316 struct mlx4_eqe {
317 	u8			reserved1;
318 	u8			type;
319 	u8			reserved2;
320 	u8			subtype;
321 	union {
322 		u32		raw[6];
323 		struct {
324 			__be32	cqn;
325 		} __packed comp;
326 		struct {
327 			u16	reserved1;
328 			__be16	token;
329 			u32	reserved2;
330 			u8	reserved3[3];
331 			u8	status;
332 			__be64	out_param;
333 		} __packed cmd;
334 		struct {
335 			__be32	qpn;
336 		} __packed qp;
337 		struct {
338 			__be32	srqn;
339 		} __packed srq;
340 		struct {
341 			__be32	cqn;
342 			u32	reserved1;
343 			u8	reserved2[3];
344 			u8	syndrome;
345 		} __packed cq_err;
346 		struct {
347 			u32	reserved1[2];
348 			__be32	port;
349 		} __packed port_change;
350 		struct {
351 			#define COMM_CHANNEL_BIT_ARRAY_SIZE	4
352 			u32 reserved;
353 			u32 bit_vec[COMM_CHANNEL_BIT_ARRAY_SIZE];
354 		} __packed comm_channel_arm;
355 		struct {
356 			u8	port;
357 			u8	reserved[3];
358 			__be64	mac;
359 		} __packed mac_update;
360 		struct {
361 			u8	port;
362 		} __packed sw_event;
363 		struct {
364 			__be32	slave_id;
365 		} __packed flr_event;
366 	}			event;
367 	u8			slave_id;
368 	u8			reserved3[2];
369 	u8			owner;
370 } __packed;
371 
372 struct mlx4_eq {
373 	struct mlx4_dev	       *dev;
374 	void __iomem	       *doorbell;
375 	int			eqn;
376 	u32			cons_index;
377 	u16			irq;
378 	u16			have_irq;
379 	int			nent;
380 	struct mlx4_buf_list   *page_list;
381 	struct mlx4_mtt		mtt;
382 };
383 
384 struct mlx4_slave_eqe {
385 	u8 type;
386 	u8 port;
387 	u32 param;
388 };
389 
390 struct mlx4_slave_event_eq_info {
391 	int eqn;
392 	u16 token;
393 };
394 
395 struct mlx4_profile {
396 	int			num_qp;
397 	int			rdmarc_per_qp;
398 	int			num_srq;
399 	int			num_cq;
400 	int			num_mcg;
401 	int			num_mpt;
402 	int			num_mtt;
403 };
404 
405 struct mlx4_fw {
406 	u64			clr_int_base;
407 	u64			catas_offset;
408 	u64			comm_base;
409 	struct mlx4_icm	       *fw_icm;
410 	struct mlx4_icm	       *aux_icm;
411 	u32			catas_size;
412 	u16			fw_pages;
413 	u8			clr_int_bar;
414 	u8			catas_bar;
415 	u8			comm_bar;
416 };
417 
418 struct mlx4_comm {
419 	u32			slave_write;
420 	u32			slave_read;
421 };
422 
423 enum {
424 	MLX4_MCAST_CONFIG       = 0,
425 	MLX4_MCAST_DISABLE      = 1,
426 	MLX4_MCAST_ENABLE       = 2,
427 };
428 
429 #define VLAN_FLTR_SIZE	128
430 
431 struct mlx4_vlan_fltr {
432 	__be32 entry[VLAN_FLTR_SIZE];
433 };
434 
435 struct mlx4_mcast_entry {
436 	struct list_head list;
437 	u64 addr;
438 };
439 
440 struct mlx4_promisc_qp {
441 	struct list_head list;
442 	u32 qpn;
443 };
444 
445 struct mlx4_steer_index {
446 	struct list_head list;
447 	unsigned int index;
448 	struct list_head duplicates;
449 };
450 
451 #define MLX4_EVENT_TYPES_NUM 64
452 
453 struct mlx4_slave_state {
454 	u8 comm_toggle;
455 	u8 last_cmd;
456 	u8 init_port_mask;
457 	bool active;
458 	u8 function;
459 	dma_addr_t vhcr_dma;
460 	u16 mtu[MLX4_MAX_PORTS + 1];
461 	__be32 ib_cap_mask[MLX4_MAX_PORTS + 1];
462 	struct mlx4_slave_eqe eq[MLX4_MFUNC_MAX_EQES];
463 	struct list_head mcast_filters[MLX4_MAX_PORTS + 1];
464 	struct mlx4_vlan_fltr *vlan_filter[MLX4_MAX_PORTS + 1];
465 	/* event type to eq number lookup */
466 	struct mlx4_slave_event_eq_info event_eq[MLX4_EVENT_TYPES_NUM];
467 	u16 eq_pi;
468 	u16 eq_ci;
469 	spinlock_t lock;
470 	/*initialized via the kzalloc*/
471 	u8 is_slave_going_down;
472 	u32 cookie;
473 };
474 
475 struct slave_list {
476 	struct mutex mutex;
477 	struct list_head res_list[MLX4_NUM_OF_RESOURCE_TYPE];
478 };
479 
480 struct mlx4_resource_tracker {
481 	spinlock_t lock;
482 	/* tree for each resources */
483 	struct radix_tree_root res_tree[MLX4_NUM_OF_RESOURCE_TYPE];
484 	/* num_of_slave's lists, one per slave */
485 	struct slave_list *slave_list;
486 };
487 
488 #define SLAVE_EVENT_EQ_SIZE	128
489 struct mlx4_slave_event_eq {
490 	u32 eqn;
491 	u32 cons;
492 	u32 prod;
493 	struct mlx4_eqe event_eqe[SLAVE_EVENT_EQ_SIZE];
494 };
495 
496 struct mlx4_master_qp0_state {
497 	int proxy_qp0_active;
498 	int qp0_active;
499 	int port_active;
500 };
501 
502 struct mlx4_mfunc_master_ctx {
503 	struct mlx4_slave_state *slave_state;
504 	struct mlx4_master_qp0_state qp0_state[MLX4_MAX_PORTS + 1];
505 	int			init_port_ref[MLX4_MAX_PORTS + 1];
506 	u16			max_mtu[MLX4_MAX_PORTS + 1];
507 	int			disable_mcast_ref[MLX4_MAX_PORTS + 1];
508 	struct mlx4_resource_tracker res_tracker;
509 	struct workqueue_struct *comm_wq;
510 	struct work_struct	comm_work;
511 	struct work_struct	slave_event_work;
512 	struct work_struct	slave_flr_event_work;
513 	spinlock_t		slave_state_lock;
514 	__be32			comm_arm_bit_vector[4];
515 	struct mlx4_eqe		cmd_eqe;
516 	struct mlx4_slave_event_eq slave_eq;
517 	struct mutex		gen_eqe_mutex[MLX4_MFUNC_MAX];
518 };
519 
520 struct mlx4_mfunc {
521 	struct mlx4_comm __iomem       *comm;
522 	struct mlx4_vhcr_cmd	       *vhcr;
523 	dma_addr_t			vhcr_dma;
524 
525 	struct mlx4_mfunc_master_ctx	master;
526 };
527 
528 struct mlx4_cmd {
529 	struct pci_pool	       *pool;
530 	void __iomem	       *hcr;
531 	struct mutex		hcr_mutex;
532 	struct semaphore	poll_sem;
533 	struct semaphore	event_sem;
534 	struct semaphore	slave_sem;
535 	int			max_cmds;
536 	spinlock_t		context_lock;
537 	int			free_head;
538 	struct mlx4_cmd_context *context;
539 	u16			token_mask;
540 	u8			use_events;
541 	u8			toggle;
542 	u8			comm_toggle;
543 };
544 
545 struct mlx4_uar_table {
546 	struct mlx4_bitmap	bitmap;
547 };
548 
549 struct mlx4_mr_table {
550 	struct mlx4_bitmap	mpt_bitmap;
551 	struct mlx4_buddy	mtt_buddy;
552 	u64			mtt_base;
553 	u64			mpt_base;
554 	struct mlx4_icm_table	mtt_table;
555 	struct mlx4_icm_table	dmpt_table;
556 };
557 
558 struct mlx4_cq_table {
559 	struct mlx4_bitmap	bitmap;
560 	spinlock_t		lock;
561 	struct radix_tree_root	tree;
562 	struct mlx4_icm_table	table;
563 	struct mlx4_icm_table	cmpt_table;
564 };
565 
566 struct mlx4_eq_table {
567 	struct mlx4_bitmap	bitmap;
568 	char		       *irq_names;
569 	void __iomem	       *clr_int;
570 	void __iomem	      **uar_map;
571 	u32			clr_mask;
572 	struct mlx4_eq	       *eq;
573 	struct mlx4_icm_table	table;
574 	struct mlx4_icm_table	cmpt_table;
575 	int			have_irq;
576 	u8			inta_pin;
577 };
578 
579 struct mlx4_srq_table {
580 	struct mlx4_bitmap	bitmap;
581 	spinlock_t		lock;
582 	struct radix_tree_root	tree;
583 	struct mlx4_icm_table	table;
584 	struct mlx4_icm_table	cmpt_table;
585 };
586 
587 struct mlx4_qp_table {
588 	struct mlx4_bitmap	bitmap;
589 	u32			rdmarc_base;
590 	int			rdmarc_shift;
591 	spinlock_t		lock;
592 	struct mlx4_icm_table	qp_table;
593 	struct mlx4_icm_table	auxc_table;
594 	struct mlx4_icm_table	altc_table;
595 	struct mlx4_icm_table	rdmarc_table;
596 	struct mlx4_icm_table	cmpt_table;
597 };
598 
599 struct mlx4_mcg_table {
600 	struct mutex		mutex;
601 	struct mlx4_bitmap	bitmap;
602 	struct mlx4_icm_table	table;
603 };
604 
605 struct mlx4_catas_err {
606 	u32 __iomem	       *map;
607 	struct timer_list	timer;
608 	struct list_head	list;
609 };
610 
611 #define MLX4_MAX_MAC_NUM	128
612 #define MLX4_MAC_TABLE_SIZE	(MLX4_MAX_MAC_NUM << 3)
613 
614 struct mlx4_mac_table {
615 	__be64			entries[MLX4_MAX_MAC_NUM];
616 	int			refs[MLX4_MAX_MAC_NUM];
617 	struct mutex		mutex;
618 	int			total;
619 	int			max;
620 };
621 
622 #define MLX4_MAX_VLAN_NUM	128
623 #define MLX4_VLAN_TABLE_SIZE	(MLX4_MAX_VLAN_NUM << 2)
624 
625 struct mlx4_vlan_table {
626 	__be32			entries[MLX4_MAX_VLAN_NUM];
627 	int			refs[MLX4_MAX_VLAN_NUM];
628 	struct mutex		mutex;
629 	int			total;
630 	int			max;
631 };
632 
633 #define SET_PORT_GEN_ALL_VALID		0x7
634 #define SET_PORT_PROMISC_SHIFT		31
635 #define SET_PORT_MC_PROMISC_SHIFT	30
636 
637 enum {
638 	MCAST_DIRECT_ONLY	= 0,
639 	MCAST_DIRECT		= 1,
640 	MCAST_DEFAULT		= 2
641 };
642 
643 
644 struct mlx4_set_port_general_context {
645 	u8 reserved[3];
646 	u8 flags;
647 	u16 reserved2;
648 	__be16 mtu;
649 	u8 pptx;
650 	u8 pfctx;
651 	u16 reserved3;
652 	u8 pprx;
653 	u8 pfcrx;
654 	u16 reserved4;
655 };
656 
657 struct mlx4_set_port_rqp_calc_context {
658 	__be32 base_qpn;
659 	u8 rererved;
660 	u8 n_mac;
661 	u8 n_vlan;
662 	u8 n_prio;
663 	u8 reserved2[3];
664 	u8 mac_miss;
665 	u8 intra_no_vlan;
666 	u8 no_vlan;
667 	u8 intra_vlan_miss;
668 	u8 vlan_miss;
669 	u8 reserved3[3];
670 	u8 no_vlan_prio;
671 	__be32 promisc;
672 	__be32 mcast;
673 };
674 
675 struct mlx4_mac_entry {
676 	u64 mac;
677 };
678 
679 struct mlx4_port_info {
680 	struct mlx4_dev	       *dev;
681 	int			port;
682 	char			dev_name[16];
683 	struct device_attribute port_attr;
684 	enum mlx4_port_type	tmp_type;
685 	struct mlx4_mac_table	mac_table;
686 	struct radix_tree_root	mac_tree;
687 	struct mlx4_vlan_table	vlan_table;
688 	int			base_qpn;
689 };
690 
691 struct mlx4_sense {
692 	struct mlx4_dev		*dev;
693 	u8			do_sense_port[MLX4_MAX_PORTS + 1];
694 	u8			sense_allowed[MLX4_MAX_PORTS + 1];
695 	struct delayed_work	sense_poll;
696 };
697 
698 struct mlx4_msix_ctl {
699 	u64		pool_bm;
700 	struct mutex	pool_lock;
701 };
702 
703 struct mlx4_steer {
704 	struct list_head promisc_qps[MLX4_NUM_STEERS];
705 	struct list_head steer_entries[MLX4_NUM_STEERS];
706 	struct list_head high_prios;
707 };
708 
709 struct mlx4_priv {
710 	struct mlx4_dev		dev;
711 
712 	struct list_head	dev_list;
713 	struct list_head	ctx_list;
714 	spinlock_t		ctx_lock;
715 
716 	struct list_head        pgdir_list;
717 	struct mutex            pgdir_mutex;
718 
719 	struct mlx4_fw		fw;
720 	struct mlx4_cmd		cmd;
721 	struct mlx4_mfunc	mfunc;
722 
723 	struct mlx4_bitmap	pd_bitmap;
724 	struct mlx4_bitmap	xrcd_bitmap;
725 	struct mlx4_uar_table	uar_table;
726 	struct mlx4_mr_table	mr_table;
727 	struct mlx4_cq_table	cq_table;
728 	struct mlx4_eq_table	eq_table;
729 	struct mlx4_srq_table	srq_table;
730 	struct mlx4_qp_table	qp_table;
731 	struct mlx4_mcg_table	mcg_table;
732 	struct mlx4_bitmap	counters_bitmap;
733 
734 	struct mlx4_catas_err	catas_err;
735 
736 	void __iomem	       *clr_base;
737 
738 	struct mlx4_uar		driver_uar;
739 	void __iomem	       *kar;
740 	struct mlx4_port_info	port[MLX4_MAX_PORTS + 1];
741 	struct mlx4_sense       sense;
742 	struct mutex		port_mutex;
743 	struct mlx4_msix_ctl	msix_ctl;
744 	struct mlx4_steer	*steer;
745 	struct list_head	bf_list;
746 	struct mutex		bf_mutex;
747 	struct io_mapping	*bf_mapping;
748 	int			reserved_mtts;
749 };
750 
mlx4_priv(struct mlx4_dev * dev)751 static inline struct mlx4_priv *mlx4_priv(struct mlx4_dev *dev)
752 {
753 	return container_of(dev, struct mlx4_priv, dev);
754 }
755 
756 #define MLX4_SENSE_RANGE	(HZ * 3)
757 
758 extern struct workqueue_struct *mlx4_wq;
759 
760 u32 mlx4_bitmap_alloc(struct mlx4_bitmap *bitmap);
761 void mlx4_bitmap_free(struct mlx4_bitmap *bitmap, u32 obj);
762 u32 mlx4_bitmap_alloc_range(struct mlx4_bitmap *bitmap, int cnt, int align);
763 void mlx4_bitmap_free_range(struct mlx4_bitmap *bitmap, u32 obj, int cnt);
764 u32 mlx4_bitmap_avail(struct mlx4_bitmap *bitmap);
765 int mlx4_bitmap_init(struct mlx4_bitmap *bitmap, u32 num, u32 mask,
766 		     u32 reserved_bot, u32 resetrved_top);
767 void mlx4_bitmap_cleanup(struct mlx4_bitmap *bitmap);
768 
769 int mlx4_reset(struct mlx4_dev *dev);
770 
771 int mlx4_alloc_eq_table(struct mlx4_dev *dev);
772 void mlx4_free_eq_table(struct mlx4_dev *dev);
773 
774 int mlx4_init_pd_table(struct mlx4_dev *dev);
775 int mlx4_init_xrcd_table(struct mlx4_dev *dev);
776 int mlx4_init_uar_table(struct mlx4_dev *dev);
777 int mlx4_init_mr_table(struct mlx4_dev *dev);
778 int mlx4_init_eq_table(struct mlx4_dev *dev);
779 int mlx4_init_cq_table(struct mlx4_dev *dev);
780 int mlx4_init_qp_table(struct mlx4_dev *dev);
781 int mlx4_init_srq_table(struct mlx4_dev *dev);
782 int mlx4_init_mcg_table(struct mlx4_dev *dev);
783 
784 void mlx4_cleanup_pd_table(struct mlx4_dev *dev);
785 void mlx4_cleanup_xrcd_table(struct mlx4_dev *dev);
786 void mlx4_cleanup_uar_table(struct mlx4_dev *dev);
787 void mlx4_cleanup_mr_table(struct mlx4_dev *dev);
788 void mlx4_cleanup_eq_table(struct mlx4_dev *dev);
789 void mlx4_cleanup_cq_table(struct mlx4_dev *dev);
790 void mlx4_cleanup_qp_table(struct mlx4_dev *dev);
791 void mlx4_cleanup_srq_table(struct mlx4_dev *dev);
792 void mlx4_cleanup_mcg_table(struct mlx4_dev *dev);
793 int __mlx4_qp_alloc_icm(struct mlx4_dev *dev, int qpn);
794 void __mlx4_qp_free_icm(struct mlx4_dev *dev, int qpn);
795 int __mlx4_cq_alloc_icm(struct mlx4_dev *dev, int *cqn);
796 void __mlx4_cq_free_icm(struct mlx4_dev *dev, int cqn);
797 int __mlx4_srq_alloc_icm(struct mlx4_dev *dev, int *srqn);
798 void __mlx4_srq_free_icm(struct mlx4_dev *dev, int srqn);
799 int __mlx4_mr_reserve(struct mlx4_dev *dev);
800 void __mlx4_mr_release(struct mlx4_dev *dev, u32 index);
801 int __mlx4_mr_alloc_icm(struct mlx4_dev *dev, u32 index);
802 void __mlx4_mr_free_icm(struct mlx4_dev *dev, u32 index);
803 u32 __mlx4_alloc_mtt_range(struct mlx4_dev *dev, int order);
804 void __mlx4_free_mtt_range(struct mlx4_dev *dev, u32 first_seg, int order);
805 
806 int mlx4_WRITE_MTT_wrapper(struct mlx4_dev *dev, int slave,
807 			   struct mlx4_vhcr *vhcr,
808 			   struct mlx4_cmd_mailbox *inbox,
809 			   struct mlx4_cmd_mailbox *outbox,
810 			   struct mlx4_cmd_info *cmd);
811 int mlx4_SYNC_TPT_wrapper(struct mlx4_dev *dev, int slave,
812 			   struct mlx4_vhcr *vhcr,
813 			   struct mlx4_cmd_mailbox *inbox,
814 			   struct mlx4_cmd_mailbox *outbox,
815 			   struct mlx4_cmd_info *cmd);
816 int mlx4_SW2HW_MPT_wrapper(struct mlx4_dev *dev, int slave,
817 			   struct mlx4_vhcr *vhcr,
818 			   struct mlx4_cmd_mailbox *inbox,
819 			   struct mlx4_cmd_mailbox *outbox,
820 			   struct mlx4_cmd_info *cmd);
821 int mlx4_HW2SW_MPT_wrapper(struct mlx4_dev *dev, int slave,
822 			   struct mlx4_vhcr *vhcr,
823 			   struct mlx4_cmd_mailbox *inbox,
824 			   struct mlx4_cmd_mailbox *outbox,
825 			   struct mlx4_cmd_info *cmd);
826 int mlx4_QUERY_MPT_wrapper(struct mlx4_dev *dev, int slave,
827 			   struct mlx4_vhcr *vhcr,
828 			   struct mlx4_cmd_mailbox *inbox,
829 			   struct mlx4_cmd_mailbox *outbox,
830 			   struct mlx4_cmd_info *cmd);
831 int mlx4_SW2HW_EQ_wrapper(struct mlx4_dev *dev, int slave,
832 			  struct mlx4_vhcr *vhcr,
833 			  struct mlx4_cmd_mailbox *inbox,
834 			  struct mlx4_cmd_mailbox *outbox,
835 			  struct mlx4_cmd_info *cmd);
836 int mlx4_DMA_wrapper(struct mlx4_dev *dev, int slave,
837 		     struct mlx4_vhcr *vhcr,
838 		     struct mlx4_cmd_mailbox *inbox,
839 		     struct mlx4_cmd_mailbox *outbox,
840 		     struct mlx4_cmd_info *cmd);
841 int __mlx4_qp_reserve_range(struct mlx4_dev *dev, int cnt, int align,
842 			    int *base);
843 void __mlx4_qp_release_range(struct mlx4_dev *dev, int base_qpn, int cnt);
844 int __mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac);
845 void __mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, u64 mac);
846 int __mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac);
847 int __mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt,
848 		     int start_index, int npages, u64 *page_list);
849 
850 void mlx4_start_catas_poll(struct mlx4_dev *dev);
851 void mlx4_stop_catas_poll(struct mlx4_dev *dev);
852 void mlx4_catas_init(void);
853 int mlx4_restart_one(struct pci_dev *pdev);
854 int mlx4_register_device(struct mlx4_dev *dev);
855 void mlx4_unregister_device(struct mlx4_dev *dev);
856 void mlx4_dispatch_event(struct mlx4_dev *dev, enum mlx4_dev_event type, int port);
857 
858 struct mlx4_dev_cap;
859 struct mlx4_init_hca_param;
860 
861 u64 mlx4_make_profile(struct mlx4_dev *dev,
862 		      struct mlx4_profile *request,
863 		      struct mlx4_dev_cap *dev_cap,
864 		      struct mlx4_init_hca_param *init_hca);
865 void mlx4_master_comm_channel(struct work_struct *work);
866 void mlx4_gen_slave_eqe(struct work_struct *work);
867 void mlx4_master_handle_slave_flr(struct work_struct *work);
868 
869 int mlx4_ALLOC_RES_wrapper(struct mlx4_dev *dev, int slave,
870 			   struct mlx4_vhcr *vhcr,
871 			   struct mlx4_cmd_mailbox *inbox,
872 			   struct mlx4_cmd_mailbox *outbox,
873 			   struct mlx4_cmd_info *cmd);
874 int mlx4_FREE_RES_wrapper(struct mlx4_dev *dev, int slave,
875 			  struct mlx4_vhcr *vhcr,
876 			  struct mlx4_cmd_mailbox *inbox,
877 			  struct mlx4_cmd_mailbox *outbox,
878 			  struct mlx4_cmd_info *cmd);
879 int mlx4_MAP_EQ_wrapper(struct mlx4_dev *dev, int slave,
880 			struct mlx4_vhcr *vhcr, struct mlx4_cmd_mailbox *inbox,
881 			struct mlx4_cmd_mailbox *outbox,
882 			struct mlx4_cmd_info *cmd);
883 int mlx4_COMM_INT_wrapper(struct mlx4_dev *dev, int slave,
884 			  struct mlx4_vhcr *vhcr,
885 			  struct mlx4_cmd_mailbox *inbox,
886 			  struct mlx4_cmd_mailbox *outbox,
887 			  struct mlx4_cmd_info *cmd);
888 int mlx4_HW2SW_EQ_wrapper(struct mlx4_dev *dev, int slave,
889 			    struct mlx4_vhcr *vhcr,
890 			    struct mlx4_cmd_mailbox *inbox,
891 			    struct mlx4_cmd_mailbox *outbox,
892 			  struct mlx4_cmd_info *cmd);
893 int mlx4_QUERY_EQ_wrapper(struct mlx4_dev *dev, int slave,
894 			  struct mlx4_vhcr *vhcr,
895 			  struct mlx4_cmd_mailbox *inbox,
896 			  struct mlx4_cmd_mailbox *outbox,
897 			  struct mlx4_cmd_info *cmd);
898 int mlx4_SW2HW_CQ_wrapper(struct mlx4_dev *dev, int slave,
899 			  struct mlx4_vhcr *vhcr,
900 			  struct mlx4_cmd_mailbox *inbox,
901 			  struct mlx4_cmd_mailbox *outbox,
902 			  struct mlx4_cmd_info *cmd);
903 int mlx4_HW2SW_CQ_wrapper(struct mlx4_dev *dev, int slave,
904 			  struct mlx4_vhcr *vhcr,
905 			  struct mlx4_cmd_mailbox *inbox,
906 			  struct mlx4_cmd_mailbox *outbox,
907 			  struct mlx4_cmd_info *cmd);
908 int mlx4_QUERY_CQ_wrapper(struct mlx4_dev *dev, int slave,
909 			  struct mlx4_vhcr *vhcr,
910 			  struct mlx4_cmd_mailbox *inbox,
911 			  struct mlx4_cmd_mailbox *outbox,
912 			  struct mlx4_cmd_info *cmd);
913 int mlx4_MODIFY_CQ_wrapper(struct mlx4_dev *dev, int slave,
914 			  struct mlx4_vhcr *vhcr,
915 			  struct mlx4_cmd_mailbox *inbox,
916 			  struct mlx4_cmd_mailbox *outbox,
917 			   struct mlx4_cmd_info *cmd);
918 int mlx4_SW2HW_SRQ_wrapper(struct mlx4_dev *dev, int slave,
919 			   struct mlx4_vhcr *vhcr,
920 			   struct mlx4_cmd_mailbox *inbox,
921 			   struct mlx4_cmd_mailbox *outbox,
922 			   struct mlx4_cmd_info *cmd);
923 int mlx4_HW2SW_SRQ_wrapper(struct mlx4_dev *dev, int slave,
924 			   struct mlx4_vhcr *vhcr,
925 			   struct mlx4_cmd_mailbox *inbox,
926 			   struct mlx4_cmd_mailbox *outbox,
927 			   struct mlx4_cmd_info *cmd);
928 int mlx4_QUERY_SRQ_wrapper(struct mlx4_dev *dev, int slave,
929 			   struct mlx4_vhcr *vhcr,
930 			   struct mlx4_cmd_mailbox *inbox,
931 			   struct mlx4_cmd_mailbox *outbox,
932 			   struct mlx4_cmd_info *cmd);
933 int mlx4_ARM_SRQ_wrapper(struct mlx4_dev *dev, int slave,
934 			 struct mlx4_vhcr *vhcr,
935 			 struct mlx4_cmd_mailbox *inbox,
936 			 struct mlx4_cmd_mailbox *outbox,
937 			 struct mlx4_cmd_info *cmd);
938 int mlx4_GEN_QP_wrapper(struct mlx4_dev *dev, int slave,
939 			struct mlx4_vhcr *vhcr,
940 			struct mlx4_cmd_mailbox *inbox,
941 			struct mlx4_cmd_mailbox *outbox,
942 			struct mlx4_cmd_info *cmd);
943 int mlx4_RST2INIT_QP_wrapper(struct mlx4_dev *dev, int slave,
944 			     struct mlx4_vhcr *vhcr,
945 			     struct mlx4_cmd_mailbox *inbox,
946 			     struct mlx4_cmd_mailbox *outbox,
947 			     struct mlx4_cmd_info *cmd);
948 int mlx4_INIT2RTR_QP_wrapper(struct mlx4_dev *dev, int slave,
949 			     struct mlx4_vhcr *vhcr,
950 			     struct mlx4_cmd_mailbox *inbox,
951 			     struct mlx4_cmd_mailbox *outbox,
952 			     struct mlx4_cmd_info *cmd);
953 int mlx4_2RST_QP_wrapper(struct mlx4_dev *dev, int slave,
954 			 struct mlx4_vhcr *vhcr,
955 			 struct mlx4_cmd_mailbox *inbox,
956 			 struct mlx4_cmd_mailbox *outbox,
957 			 struct mlx4_cmd_info *cmd);
958 
959 int mlx4_GEN_EQE(struct mlx4_dev *dev, int slave, struct mlx4_eqe *eqe);
960 
961 int mlx4_cmd_init(struct mlx4_dev *dev);
962 void mlx4_cmd_cleanup(struct mlx4_dev *dev);
963 int mlx4_multi_func_init(struct mlx4_dev *dev);
964 void mlx4_multi_func_cleanup(struct mlx4_dev *dev);
965 void mlx4_cmd_event(struct mlx4_dev *dev, u16 token, u8 status, u64 out_param);
966 int mlx4_cmd_use_events(struct mlx4_dev *dev);
967 void mlx4_cmd_use_polling(struct mlx4_dev *dev);
968 
969 int mlx4_comm_cmd(struct mlx4_dev *dev, u8 cmd, u16 param,
970 		  unsigned long timeout);
971 
972 void mlx4_cq_completion(struct mlx4_dev *dev, u32 cqn);
973 void mlx4_cq_event(struct mlx4_dev *dev, u32 cqn, int event_type);
974 
975 void mlx4_qp_event(struct mlx4_dev *dev, u32 qpn, int event_type);
976 
977 void mlx4_srq_event(struct mlx4_dev *dev, u32 srqn, int event_type);
978 
979 void mlx4_handle_catas_err(struct mlx4_dev *dev);
980 
981 int mlx4_SENSE_PORT(struct mlx4_dev *dev, int port,
982 		    enum mlx4_port_type *type);
983 void mlx4_do_sense_ports(struct mlx4_dev *dev,
984 			 enum mlx4_port_type *stype,
985 			 enum mlx4_port_type *defaults);
986 void mlx4_start_sense(struct mlx4_dev *dev);
987 void mlx4_stop_sense(struct mlx4_dev *dev);
988 void mlx4_sense_init(struct mlx4_dev *dev);
989 int mlx4_check_port_params(struct mlx4_dev *dev,
990 			   enum mlx4_port_type *port_type);
991 int mlx4_change_port_types(struct mlx4_dev *dev,
992 			   enum mlx4_port_type *port_types);
993 
994 void mlx4_init_mac_table(struct mlx4_dev *dev, struct mlx4_mac_table *table);
995 void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table);
996 
997 int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port);
998 /* resource tracker functions*/
999 int mlx4_get_slave_from_resource_id(struct mlx4_dev *dev,
1000 				    enum mlx4_resource resource_type,
1001 				    int resource_id, int *slave);
1002 void mlx4_delete_all_resources_for_slave(struct mlx4_dev *dev, int slave_id);
1003 int mlx4_init_resource_tracker(struct mlx4_dev *dev);
1004 
1005 void mlx4_free_resource_tracker(struct mlx4_dev *dev);
1006 
1007 int mlx4_SET_PORT_wrapper(struct mlx4_dev *dev, int slave,
1008 			  struct mlx4_vhcr *vhcr,
1009 			  struct mlx4_cmd_mailbox *inbox,
1010 			  struct mlx4_cmd_mailbox *outbox,
1011 			  struct mlx4_cmd_info *cmd);
1012 int mlx4_INIT_PORT_wrapper(struct mlx4_dev *dev, int slave,
1013 			   struct mlx4_vhcr *vhcr,
1014 			   struct mlx4_cmd_mailbox *inbox,
1015 			   struct mlx4_cmd_mailbox *outbox,
1016 			   struct mlx4_cmd_info *cmd);
1017 int mlx4_CLOSE_PORT_wrapper(struct mlx4_dev *dev, int slave,
1018 			    struct mlx4_vhcr *vhcr,
1019 			    struct mlx4_cmd_mailbox *inbox,
1020 			    struct mlx4_cmd_mailbox *outbox,
1021 			    struct mlx4_cmd_info *cmd);
1022 int mlx4_QUERY_PORT_wrapper(struct mlx4_dev *dev, int slave,
1023 			    struct mlx4_vhcr *vhcr,
1024 			    struct mlx4_cmd_mailbox *inbox,
1025 			    struct mlx4_cmd_mailbox *outbox,
1026 			    struct mlx4_cmd_info *cmd);
1027 int mlx4_get_port_ib_caps(struct mlx4_dev *dev, u8 port, __be32 *caps);
1028 int mlx4_check_ext_port_caps(struct mlx4_dev *dev, u8 port);
1029 
1030 
1031 int mlx4_QP_ATTACH_wrapper(struct mlx4_dev *dev, int slave,
1032 			   struct mlx4_vhcr *vhcr,
1033 			   struct mlx4_cmd_mailbox *inbox,
1034 			   struct mlx4_cmd_mailbox *outbox,
1035 			   struct mlx4_cmd_info *cmd);
1036 
1037 int mlx4_PROMISC_wrapper(struct mlx4_dev *dev, int slave,
1038 			 struct mlx4_vhcr *vhcr,
1039 			 struct mlx4_cmd_mailbox *inbox,
1040 			 struct mlx4_cmd_mailbox *outbox,
1041 			 struct mlx4_cmd_info *cmd);
1042 int mlx4_qp_detach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
1043 			  enum mlx4_protocol prot, enum mlx4_steer_type steer);
1044 int mlx4_qp_attach_common(struct mlx4_dev *dev, struct mlx4_qp *qp, u8 gid[16],
1045 			  int block_mcast_loopback, enum mlx4_protocol prot,
1046 			  enum mlx4_steer_type steer);
1047 int mlx4_SET_MCAST_FLTR_wrapper(struct mlx4_dev *dev, int slave,
1048 				struct mlx4_vhcr *vhcr,
1049 				struct mlx4_cmd_mailbox *inbox,
1050 				struct mlx4_cmd_mailbox *outbox,
1051 				struct mlx4_cmd_info *cmd);
1052 int mlx4_SET_VLAN_FLTR_wrapper(struct mlx4_dev *dev, int slave,
1053 			       struct mlx4_vhcr *vhcr,
1054 			       struct mlx4_cmd_mailbox *inbox,
1055 			       struct mlx4_cmd_mailbox *outbox,
1056 			       struct mlx4_cmd_info *cmd);
1057 int mlx4_common_set_vlan_fltr(struct mlx4_dev *dev, int function,
1058 				     int port, void *buf);
1059 int mlx4_common_dump_eth_stats(struct mlx4_dev *dev, int slave, u32 in_mod,
1060 				struct mlx4_cmd_mailbox *outbox);
1061 int mlx4_DUMP_ETH_STATS_wrapper(struct mlx4_dev *dev, int slave,
1062 				   struct mlx4_vhcr *vhcr,
1063 				   struct mlx4_cmd_mailbox *inbox,
1064 				   struct mlx4_cmd_mailbox *outbox,
1065 				struct mlx4_cmd_info *cmd);
1066 int mlx4_PKEY_TABLE_wrapper(struct mlx4_dev *dev, int slave,
1067 			    struct mlx4_vhcr *vhcr,
1068 			    struct mlx4_cmd_mailbox *inbox,
1069 			    struct mlx4_cmd_mailbox *outbox,
1070 			    struct mlx4_cmd_info *cmd);
1071 int mlx4_QUERY_IF_STAT_wrapper(struct mlx4_dev *dev, int slave,
1072 			       struct mlx4_vhcr *vhcr,
1073 			       struct mlx4_cmd_mailbox *inbox,
1074 			       struct mlx4_cmd_mailbox *outbox,
1075 			       struct mlx4_cmd_info *cmd);
1076 
1077 int mlx4_get_mgm_entry_size(struct mlx4_dev *dev);
1078 int mlx4_get_qp_per_mgm(struct mlx4_dev *dev);
1079 
set_param_l(u64 * arg,u32 val)1080 static inline void set_param_l(u64 *arg, u32 val)
1081 {
1082 	*((u32 *)arg) = val;
1083 }
1084 
set_param_h(u64 * arg,u32 val)1085 static inline void set_param_h(u64 *arg, u32 val)
1086 {
1087 	*arg = (*arg & 0xffffffff) | ((u64) val << 32);
1088 }
1089 
get_param_l(u64 * arg)1090 static inline u32 get_param_l(u64 *arg)
1091 {
1092 	return (u32) (*arg & 0xffffffff);
1093 }
1094 
get_param_h(u64 * arg)1095 static inline u32 get_param_h(u64 *arg)
1096 {
1097 	return (u32)(*arg >> 32);
1098 }
1099 
mlx4_tlock(struct mlx4_dev * dev)1100 static inline spinlock_t *mlx4_tlock(struct mlx4_dev *dev)
1101 {
1102 	return &mlx4_priv(dev)->mfunc.master.res_tracker.lock;
1103 }
1104 
1105 #define NOT_MASKED_PD_BITS 17
1106 
1107 #endif /* MLX4_H */
1108