1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * QLogic qlcnic NIC Driver
4 * Copyright (c) 2009-2013 QLogic Corporation
5 */
6
7 #include <linux/vmalloc.h>
8 #include <linux/interrupt.h>
9 #include <linux/swab.h>
10 #include <linux/dma-mapping.h>
11 #include <linux/if_vlan.h>
12 #include <net/ip.h>
13 #include <linux/ipv6.h>
14 #include <linux/inetdevice.h>
15 #include <linux/log2.h>
16 #include <linux/pci.h>
17 #include <net/vxlan.h>
18
19 #include "qlcnic.h"
20 #include "qlcnic_sriov.h"
21 #include "qlcnic_hw.h"
22
23 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
24 MODULE_LICENSE("GPL");
25 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
26 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
27
28 char qlcnic_driver_name[] = "qlcnic";
29 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
30 "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
31
32 static int qlcnic_mac_learn;
33 module_param(qlcnic_mac_learn, int, 0444);
34 MODULE_PARM_DESC(qlcnic_mac_learn,
35 "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
36
37 int qlcnic_use_msi = 1;
38 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
39 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
40
41 int qlcnic_use_msi_x = 1;
42 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
43 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
44
45 int qlcnic_auto_fw_reset = 1;
46 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
47 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
48
49 int qlcnic_load_fw_file;
50 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file, 2=POST in fast mode, 3= POST in medium mode, 4=POST in slow mode)");
51 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
52
53 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
54 static void qlcnic_remove(struct pci_dev *pdev);
55 static int qlcnic_open(struct net_device *netdev);
56 static int qlcnic_close(struct net_device *netdev);
57 static void qlcnic_tx_timeout(struct net_device *netdev, unsigned int txqueue);
58 static void qlcnic_attach_work(struct work_struct *work);
59 static void qlcnic_fwinit_work(struct work_struct *work);
60
61 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
62 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
63
64 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
65 static irqreturn_t qlcnic_intr(int irq, void *data);
66 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
67 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
68 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
69
70 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
71 static int qlcnic_start_firmware(struct qlcnic_adapter *);
72
73 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
74 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
75 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
76 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
77 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
78
79 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *);
80 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *, u32);
81 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *);
82 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *);
83 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *);
84 static void qlcnic_82xx_io_resume(struct pci_dev *);
85 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
86 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *,
87 pci_channel_state_t);
qlcnic_vlan_tx_check(struct qlcnic_adapter * adapter)88 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
89 {
90 struct qlcnic_hardware_context *ahw = adapter->ahw;
91
92 if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
93 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
94 else
95 return 1;
96 }
97
98 /* PCI Device ID Table */
99 #define ENTRY(device) \
100 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
101 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
102
103 static const struct pci_device_id qlcnic_pci_tbl[] = {
104 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
105 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
106 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
107 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE8830),
108 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE8C30),
109 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
110 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
111 {0,}
112 };
113
114 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
115
116
qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring * tx_ring)117 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
118 {
119 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
120 }
121
122 static const u32 msi_tgt_status[8] = {
123 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
124 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
125 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
126 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
127 };
128
129 static const u32 qlcnic_reg_tbl[] = {
130 0x1B20A8, /* PEG_HALT_STAT1 */
131 0x1B20AC, /* PEG_HALT_STAT2 */
132 0x1B20B0, /* FW_HEARTBEAT */
133 0x1B2100, /* LOCK ID */
134 0x1B2128, /* FW_CAPABILITIES */
135 0x1B2138, /* drv active */
136 0x1B2140, /* dev state */
137 0x1B2144, /* drv state */
138 0x1B2148, /* drv scratch */
139 0x1B214C, /* dev partition info */
140 0x1B2174, /* drv idc ver */
141 0x1B2150, /* fw version major */
142 0x1B2154, /* fw version minor */
143 0x1B2158, /* fw version sub */
144 0x1B219C, /* npar state */
145 0x1B21FC, /* FW_IMG_VALID */
146 0x1B2250, /* CMD_PEG_STATE */
147 0x1B233C, /* RCV_PEG_STATE */
148 0x1B23B4, /* ASIC TEMP */
149 0x1B216C, /* FW api */
150 0x1B2170, /* drv op mode */
151 0x13C010, /* flash lock */
152 0x13C014, /* flash unlock */
153 };
154
155 static const struct qlcnic_board_info qlcnic_boards[] = {
156 { PCI_VENDOR_ID_QLOGIC,
157 PCI_DEVICE_ID_QLOGIC_QLE844X,
158 0x0,
159 0x0,
160 "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
161 { PCI_VENDOR_ID_QLOGIC,
162 PCI_DEVICE_ID_QLOGIC_QLE834X,
163 PCI_VENDOR_ID_QLOGIC,
164 0x24e,
165 "8300 Series Dual Port 10GbE Converged Network Adapter "
166 "(TCP/IP Networking)" },
167 { PCI_VENDOR_ID_QLOGIC,
168 PCI_DEVICE_ID_QLOGIC_QLE834X,
169 PCI_VENDOR_ID_QLOGIC,
170 0x243,
171 "8300 Series Single Port 10GbE Converged Network Adapter "
172 "(TCP/IP Networking)" },
173 { PCI_VENDOR_ID_QLOGIC,
174 PCI_DEVICE_ID_QLOGIC_QLE834X,
175 PCI_VENDOR_ID_QLOGIC,
176 0x24a,
177 "8300 Series Dual Port 10GbE Converged Network Adapter "
178 "(TCP/IP Networking)" },
179 { PCI_VENDOR_ID_QLOGIC,
180 PCI_DEVICE_ID_QLOGIC_QLE834X,
181 PCI_VENDOR_ID_QLOGIC,
182 0x246,
183 "8300 Series Dual Port 10GbE Converged Network Adapter "
184 "(TCP/IP Networking)" },
185 { PCI_VENDOR_ID_QLOGIC,
186 PCI_DEVICE_ID_QLOGIC_QLE834X,
187 PCI_VENDOR_ID_QLOGIC,
188 0x252,
189 "8300 Series Dual Port 10GbE Converged Network Adapter "
190 "(TCP/IP Networking)" },
191 { PCI_VENDOR_ID_QLOGIC,
192 PCI_DEVICE_ID_QLOGIC_QLE834X,
193 PCI_VENDOR_ID_QLOGIC,
194 0x26e,
195 "8300 Series Dual Port 10GbE Converged Network Adapter "
196 "(TCP/IP Networking)" },
197 { PCI_VENDOR_ID_QLOGIC,
198 PCI_DEVICE_ID_QLOGIC_QLE834X,
199 PCI_VENDOR_ID_QLOGIC,
200 0x260,
201 "8300 Series Dual Port 10GbE Converged Network Adapter "
202 "(TCP/IP Networking)" },
203 { PCI_VENDOR_ID_QLOGIC,
204 PCI_DEVICE_ID_QLOGIC_QLE834X,
205 PCI_VENDOR_ID_QLOGIC,
206 0x266,
207 "8300 Series Single Port 10GbE Converged Network Adapter "
208 "(TCP/IP Networking)" },
209 { PCI_VENDOR_ID_QLOGIC,
210 PCI_DEVICE_ID_QLOGIC_QLE834X,
211 PCI_VENDOR_ID_QLOGIC,
212 0x269,
213 "8300 Series Dual Port 10GbE Converged Network Adapter "
214 "(TCP/IP Networking)" },
215 { PCI_VENDOR_ID_QLOGIC,
216 PCI_DEVICE_ID_QLOGIC_QLE834X,
217 PCI_VENDOR_ID_QLOGIC,
218 0x271,
219 "8300 Series Dual Port 10GbE Converged Network Adapter "
220 "(TCP/IP Networking)" },
221 { PCI_VENDOR_ID_QLOGIC,
222 PCI_DEVICE_ID_QLOGIC_QLE834X,
223 0x0, 0x0, "8300 Series 1/10GbE Controller" },
224 { PCI_VENDOR_ID_QLOGIC,
225 PCI_DEVICE_ID_QLOGIC_QLE8830,
226 0x0,
227 0x0,
228 "8830 Series 1/10GbE Controller" },
229 { PCI_VENDOR_ID_QLOGIC,
230 PCI_DEVICE_ID_QLOGIC_QLE824X,
231 PCI_VENDOR_ID_QLOGIC,
232 0x203,
233 "8200 Series Single Port 10GbE Converged Network Adapter"
234 "(TCP/IP Networking)" },
235 { PCI_VENDOR_ID_QLOGIC,
236 PCI_DEVICE_ID_QLOGIC_QLE824X,
237 PCI_VENDOR_ID_QLOGIC,
238 0x207,
239 "8200 Series Dual Port 10GbE Converged Network Adapter"
240 "(TCP/IP Networking)" },
241 { PCI_VENDOR_ID_QLOGIC,
242 PCI_DEVICE_ID_QLOGIC_QLE824X,
243 PCI_VENDOR_ID_QLOGIC,
244 0x20b,
245 "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
246 { PCI_VENDOR_ID_QLOGIC,
247 PCI_DEVICE_ID_QLOGIC_QLE824X,
248 PCI_VENDOR_ID_QLOGIC,
249 0x20c,
250 "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
251 { PCI_VENDOR_ID_QLOGIC,
252 PCI_DEVICE_ID_QLOGIC_QLE824X,
253 PCI_VENDOR_ID_QLOGIC,
254 0x20f,
255 "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
256 { PCI_VENDOR_ID_QLOGIC,
257 PCI_DEVICE_ID_QLOGIC_QLE824X,
258 0x103c, 0x3733,
259 "NC523SFP 10Gb 2-port Server Adapter" },
260 { PCI_VENDOR_ID_QLOGIC,
261 PCI_DEVICE_ID_QLOGIC_QLE824X,
262 0x103c, 0x3346,
263 "CN1000Q Dual Port Converged Network Adapter" },
264 { PCI_VENDOR_ID_QLOGIC,
265 PCI_DEVICE_ID_QLOGIC_QLE824X,
266 PCI_VENDOR_ID_QLOGIC,
267 0x210,
268 "QME8242-k 10GbE Dual Port Mezzanine Card" },
269 { PCI_VENDOR_ID_QLOGIC,
270 PCI_DEVICE_ID_QLOGIC_QLE824X,
271 0x0, 0x0, "cLOM8214 1/10GbE Controller" },
272 };
273
274 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
275
276 static const
277 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
278
qlcnic_alloc_sds_rings(struct qlcnic_recv_context * recv_ctx,int count)279 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
280 {
281 int size = sizeof(struct qlcnic_host_sds_ring) * count;
282
283 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
284
285 return recv_ctx->sds_rings == NULL;
286 }
287
qlcnic_free_sds_rings(struct qlcnic_recv_context * recv_ctx)288 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
289 {
290 kfree(recv_ctx->sds_rings);
291 recv_ctx->sds_rings = NULL;
292 }
293
qlcnic_read_mac_addr(struct qlcnic_adapter * adapter)294 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
295 {
296 struct net_device *netdev = adapter->netdev;
297 struct pci_dev *pdev = adapter->pdev;
298 u8 mac_addr[ETH_ALEN];
299 int ret;
300
301 ret = qlcnic_get_mac_address(adapter, mac_addr,
302 adapter->ahw->pci_func);
303 if (ret)
304 return ret;
305
306 eth_hw_addr_set(netdev, mac_addr);
307 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
308
309 /* set station address */
310
311 if (!is_valid_ether_addr(netdev->dev_addr))
312 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
313 netdev->dev_addr);
314
315 return 0;
316 }
317
qlcnic_delete_adapter_mac(struct qlcnic_adapter * adapter)318 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
319 {
320 struct qlcnic_mac_vlan_list *cur;
321
322 list_for_each_entry(cur, &adapter->mac_list, list) {
323 if (ether_addr_equal_unaligned(adapter->mac_addr, cur->mac_addr)) {
324 qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
325 0, QLCNIC_MAC_DEL);
326 list_del(&cur->list);
327 kfree(cur);
328 return;
329 }
330 }
331 }
332
qlcnic_set_mac(struct net_device * netdev,void * p)333 static int qlcnic_set_mac(struct net_device *netdev, void *p)
334 {
335 struct qlcnic_adapter *adapter = netdev_priv(netdev);
336 struct sockaddr *addr = p;
337
338 if (qlcnic_sriov_vf_check(adapter))
339 return -EINVAL;
340
341 if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
342 return -EOPNOTSUPP;
343
344 if (!is_valid_ether_addr(addr->sa_data))
345 return -EINVAL;
346
347 if (ether_addr_equal_unaligned(adapter->mac_addr, addr->sa_data) &&
348 ether_addr_equal_unaligned(netdev->dev_addr, addr->sa_data))
349 return 0;
350
351 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
352 netif_device_detach(netdev);
353 qlcnic_napi_disable(adapter);
354 }
355
356 qlcnic_delete_adapter_mac(adapter);
357 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
358 eth_hw_addr_set(netdev, addr->sa_data);
359 qlcnic_set_multi(adapter->netdev);
360
361 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
362 netif_device_attach(netdev);
363 qlcnic_napi_enable(adapter);
364 }
365 return 0;
366 }
367
qlcnic_fdb_del(struct ndmsg * ndm,struct nlattr * tb[],struct net_device * netdev,const unsigned char * addr,u16 vid,bool * notified,struct netlink_ext_ack * extack)368 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
369 struct net_device *netdev,
370 const unsigned char *addr, u16 vid, bool *notified,
371 struct netlink_ext_ack *extack)
372 {
373 struct qlcnic_adapter *adapter = netdev_priv(netdev);
374 int err = -EOPNOTSUPP;
375
376 if (!adapter->fdb_mac_learn)
377 return ndo_dflt_fdb_del(ndm, tb, netdev, addr, vid);
378
379 if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
380 qlcnic_sriov_check(adapter)) {
381 if (is_unicast_ether_addr(addr)) {
382 err = dev_uc_del(netdev, addr);
383 if (!err)
384 err = qlcnic_nic_del_mac(adapter, addr);
385 } else if (is_multicast_ether_addr(addr)) {
386 err = dev_mc_del(netdev, addr);
387 } else {
388 err = -EINVAL;
389 }
390 }
391 return err;
392 }
393
qlcnic_fdb_add(struct ndmsg * ndm,struct nlattr * tb[],struct net_device * netdev,const unsigned char * addr,u16 vid,u16 flags,bool * notified,struct netlink_ext_ack * extack)394 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
395 struct net_device *netdev,
396 const unsigned char *addr, u16 vid, u16 flags,
397 bool *notified, struct netlink_ext_ack *extack)
398 {
399 struct qlcnic_adapter *adapter = netdev_priv(netdev);
400 int err = 0;
401
402 if (!adapter->fdb_mac_learn)
403 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, vid, flags);
404
405 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
406 !qlcnic_sriov_check(adapter)) {
407 pr_info("%s: FDB e-switch is not enabled\n", __func__);
408 return -EOPNOTSUPP;
409 }
410
411 if (ether_addr_equal(addr, adapter->mac_addr))
412 return err;
413
414 if (is_unicast_ether_addr(addr)) {
415 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
416 err = dev_uc_add_excl(netdev, addr);
417 else
418 err = -ENOMEM;
419 } else if (is_multicast_ether_addr(addr)) {
420 err = dev_mc_add_excl(netdev, addr);
421 } else {
422 err = -EINVAL;
423 }
424
425 return err;
426 }
427
qlcnic_fdb_dump(struct sk_buff * skb,struct netlink_callback * ncb,struct net_device * netdev,struct net_device * filter_dev,int * idx)428 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
429 struct net_device *netdev,
430 struct net_device *filter_dev, int *idx)
431 {
432 struct qlcnic_adapter *adapter = netdev_priv(netdev);
433 int err = 0;
434
435 if (!adapter->fdb_mac_learn)
436 return ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
437
438 if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
439 qlcnic_sriov_check(adapter))
440 err = ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
441
442 return err;
443 }
444
qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter * adapter)445 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
446 {
447 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
448 usleep_range(10000, 11000);
449
450 if (!adapter->fw_work.work.func)
451 return;
452
453 cancel_delayed_work_sync(&adapter->fw_work);
454 }
455
qlcnic_get_phys_port_id(struct net_device * netdev,struct netdev_phys_item_id * ppid)456 static int qlcnic_get_phys_port_id(struct net_device *netdev,
457 struct netdev_phys_item_id *ppid)
458 {
459 struct qlcnic_adapter *adapter = netdev_priv(netdev);
460 struct qlcnic_hardware_context *ahw = adapter->ahw;
461
462 if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
463 return -EOPNOTSUPP;
464
465 ppid->id_len = sizeof(ahw->phys_port_id);
466 memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
467
468 return 0;
469 }
470
qlcnic_udp_tunnel_sync(struct net_device * dev,unsigned int table)471 static int qlcnic_udp_tunnel_sync(struct net_device *dev, unsigned int table)
472 {
473 struct qlcnic_adapter *adapter = netdev_priv(dev);
474 struct udp_tunnel_info ti;
475 int err;
476
477 udp_tunnel_nic_get_port(dev, table, 0, &ti);
478 if (ti.port) {
479 err = qlcnic_set_vxlan_port(adapter, ntohs(ti.port));
480 if (err)
481 return err;
482 }
483
484 return qlcnic_set_vxlan_parsing(adapter, ntohs(ti.port));
485 }
486
487 static const struct udp_tunnel_nic_info qlcnic_udp_tunnels = {
488 .sync_table = qlcnic_udp_tunnel_sync,
489 .tables = {
490 { .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_VXLAN, },
491 },
492 };
493
qlcnic_features_check(struct sk_buff * skb,struct net_device * dev,netdev_features_t features)494 static netdev_features_t qlcnic_features_check(struct sk_buff *skb,
495 struct net_device *dev,
496 netdev_features_t features)
497 {
498 features = vlan_features_check(skb, features);
499 return vxlan_features_check(skb, features);
500 }
501
502 static const struct net_device_ops qlcnic_netdev_ops = {
503 .ndo_open = qlcnic_open,
504 .ndo_stop = qlcnic_close,
505 .ndo_start_xmit = qlcnic_xmit_frame,
506 .ndo_get_stats = qlcnic_get_stats,
507 .ndo_validate_addr = eth_validate_addr,
508 .ndo_set_rx_mode = qlcnic_set_multi,
509 .ndo_set_mac_address = qlcnic_set_mac,
510 .ndo_change_mtu = qlcnic_change_mtu,
511 .ndo_fix_features = qlcnic_fix_features,
512 .ndo_set_features = qlcnic_set_features,
513 .ndo_tx_timeout = qlcnic_tx_timeout,
514 .ndo_vlan_rx_add_vid = qlcnic_vlan_rx_add,
515 .ndo_vlan_rx_kill_vid = qlcnic_vlan_rx_del,
516 .ndo_fdb_add = qlcnic_fdb_add,
517 .ndo_fdb_del = qlcnic_fdb_del,
518 .ndo_fdb_dump = qlcnic_fdb_dump,
519 .ndo_get_phys_port_id = qlcnic_get_phys_port_id,
520 .ndo_features_check = qlcnic_features_check,
521 #ifdef CONFIG_QLCNIC_SRIOV
522 .ndo_set_vf_mac = qlcnic_sriov_set_vf_mac,
523 .ndo_set_vf_rate = qlcnic_sriov_set_vf_tx_rate,
524 .ndo_get_vf_config = qlcnic_sriov_get_vf_config,
525 .ndo_set_vf_vlan = qlcnic_sriov_set_vf_vlan,
526 .ndo_set_vf_spoofchk = qlcnic_sriov_set_vf_spoofchk,
527 #endif
528 };
529
530 static const struct net_device_ops qlcnic_netdev_failed_ops = {
531 .ndo_open = qlcnic_open,
532 };
533
534 static struct qlcnic_nic_template qlcnic_ops = {
535 .config_bridged_mode = qlcnic_config_bridged_mode,
536 .config_led = qlcnic_82xx_config_led,
537 .start_firmware = qlcnic_82xx_start_firmware,
538 .request_reset = qlcnic_82xx_dev_request_reset,
539 .cancel_idc_work = qlcnic_82xx_cancel_idc_work,
540 .napi_add = qlcnic_82xx_napi_add,
541 .napi_del = qlcnic_82xx_napi_del,
542 .config_ipaddr = qlcnic_82xx_config_ipaddr,
543 .shutdown = qlcnic_82xx_shutdown,
544 .resume = qlcnic_82xx_resume,
545 .clear_legacy_intr = qlcnic_82xx_clear_legacy_intr,
546 };
547
548 struct qlcnic_nic_template qlcnic_vf_ops = {
549 .config_bridged_mode = qlcnicvf_config_bridged_mode,
550 .config_led = qlcnicvf_config_led,
551 .start_firmware = qlcnicvf_start_firmware
552 };
553
554 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
555 .read_crb = qlcnic_82xx_read_crb,
556 .write_crb = qlcnic_82xx_write_crb,
557 .read_reg = qlcnic_82xx_hw_read_wx_2M,
558 .write_reg = qlcnic_82xx_hw_write_wx_2M,
559 .get_mac_address = qlcnic_82xx_get_mac_address,
560 .setup_intr = qlcnic_82xx_setup_intr,
561 .alloc_mbx_args = qlcnic_82xx_alloc_mbx_args,
562 .mbx_cmd = qlcnic_82xx_issue_cmd,
563 .get_func_no = qlcnic_82xx_get_func_no,
564 .api_lock = qlcnic_82xx_api_lock,
565 .api_unlock = qlcnic_82xx_api_unlock,
566 .add_sysfs = qlcnic_82xx_add_sysfs,
567 .remove_sysfs = qlcnic_82xx_remove_sysfs,
568 .process_lb_rcv_ring_diag = qlcnic_82xx_process_rcv_ring_diag,
569 .create_rx_ctx = qlcnic_82xx_fw_cmd_create_rx_ctx,
570 .create_tx_ctx = qlcnic_82xx_fw_cmd_create_tx_ctx,
571 .del_rx_ctx = qlcnic_82xx_fw_cmd_del_rx_ctx,
572 .del_tx_ctx = qlcnic_82xx_fw_cmd_del_tx_ctx,
573 .setup_link_event = qlcnic_82xx_linkevent_request,
574 .get_nic_info = qlcnic_82xx_get_nic_info,
575 .get_pci_info = qlcnic_82xx_get_pci_info,
576 .set_nic_info = qlcnic_82xx_set_nic_info,
577 .change_macvlan = qlcnic_82xx_sre_macaddr_change,
578 .napi_enable = qlcnic_82xx_napi_enable,
579 .napi_disable = qlcnic_82xx_napi_disable,
580 .config_intr_coal = qlcnic_82xx_config_intr_coalesce,
581 .config_rss = qlcnic_82xx_config_rss,
582 .config_hw_lro = qlcnic_82xx_config_hw_lro,
583 .config_loopback = qlcnic_82xx_set_lb_mode,
584 .clear_loopback = qlcnic_82xx_clear_lb_mode,
585 .config_promisc_mode = qlcnic_82xx_nic_set_promisc,
586 .change_l2_filter = qlcnic_82xx_change_filter,
587 .get_board_info = qlcnic_82xx_get_board_info,
588 .set_mac_filter_count = qlcnic_82xx_set_mac_filter_count,
589 .free_mac_list = qlcnic_82xx_free_mac_list,
590 .read_phys_port_id = qlcnic_82xx_read_phys_port_id,
591 .io_error_detected = qlcnic_82xx_io_error_detected,
592 .io_slot_reset = qlcnic_82xx_io_slot_reset,
593 .io_resume = qlcnic_82xx_io_resume,
594 .get_beacon_state = qlcnic_82xx_get_beacon_state,
595 .enable_sds_intr = qlcnic_82xx_enable_sds_intr,
596 .disable_sds_intr = qlcnic_82xx_disable_sds_intr,
597 .enable_tx_intr = qlcnic_82xx_enable_tx_intr,
598 .disable_tx_intr = qlcnic_82xx_disable_tx_intr,
599 .get_saved_state = qlcnic_82xx_get_saved_state,
600 .set_saved_state = qlcnic_82xx_set_saved_state,
601 .cache_tmpl_hdr_values = qlcnic_82xx_cache_tmpl_hdr_values,
602 .get_cap_size = qlcnic_82xx_get_cap_size,
603 .set_sys_info = qlcnic_82xx_set_sys_info,
604 .store_cap_mask = qlcnic_82xx_store_cap_mask,
605 .encap_rx_offload = qlcnic_82xx_encap_rx_offload,
606 .encap_tx_offload = qlcnic_82xx_encap_tx_offload,
607 };
608
qlcnic_check_multi_tx_capability(struct qlcnic_adapter * adapter)609 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
610 {
611 struct qlcnic_hardware_context *ahw = adapter->ahw;
612
613 if (qlcnic_82xx_check(adapter) &&
614 (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
615 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
616 return 0;
617 } else {
618 return 1;
619 }
620 }
621
qlcnic_max_rings(struct qlcnic_adapter * adapter,u8 ring_cnt,int queue_type)622 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
623 int queue_type)
624 {
625 int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
626
627 if (queue_type == QLCNIC_RX_QUEUE)
628 max_rings = adapter->max_sds_rings;
629 else if (queue_type == QLCNIC_TX_QUEUE)
630 max_rings = adapter->max_tx_rings;
631
632 num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
633 max_rings));
634
635 if (ring_cnt > num_rings)
636 return num_rings;
637 else
638 return ring_cnt;
639 }
640
qlcnic_set_tx_ring_count(struct qlcnic_adapter * adapter,u8 tx_cnt)641 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
642 {
643 /* 83xx adapter does not have max_tx_rings intialized in probe */
644 if (adapter->max_tx_rings)
645 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
646 QLCNIC_TX_QUEUE);
647 else
648 adapter->drv_tx_rings = tx_cnt;
649 }
650
qlcnic_set_sds_ring_count(struct qlcnic_adapter * adapter,u8 rx_cnt)651 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
652 {
653 /* 83xx adapter does not have max_sds_rings intialized in probe */
654 if (adapter->max_sds_rings)
655 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
656 QLCNIC_RX_QUEUE);
657 else
658 adapter->drv_sds_rings = rx_cnt;
659 }
660
qlcnic_setup_tss_rss_intr(struct qlcnic_adapter * adapter)661 int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
662 {
663 struct pci_dev *pdev = adapter->pdev;
664 int num_msix = 0, err = 0, vector;
665
666 adapter->flags &= ~QLCNIC_TSS_RSS;
667
668 if (adapter->drv_tss_rings > 0)
669 num_msix += adapter->drv_tss_rings;
670 else
671 num_msix += adapter->drv_tx_rings;
672
673 if (adapter->drv_rss_rings > 0)
674 num_msix += adapter->drv_rss_rings;
675 else
676 num_msix += adapter->drv_sds_rings;
677
678 if (qlcnic_83xx_check(adapter))
679 num_msix += 1;
680
681 if (!adapter->msix_entries) {
682 adapter->msix_entries = kzalloc_objs(struct msix_entry,
683 num_msix);
684 if (!adapter->msix_entries)
685 return -ENOMEM;
686 }
687
688 for (vector = 0; vector < num_msix; vector++)
689 adapter->msix_entries[vector].entry = vector;
690
691 restore:
692 err = pci_enable_msix_exact(pdev, adapter->msix_entries, num_msix);
693 if (err == -ENOSPC) {
694 if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
695 return err;
696
697 netdev_info(adapter->netdev,
698 "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
699 num_msix, err);
700
701 num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
702
703 /* Set rings to 0 so we can restore original TSS/RSS count */
704 adapter->drv_tss_rings = 0;
705 adapter->drv_rss_rings = 0;
706
707 if (qlcnic_83xx_check(adapter))
708 num_msix += 1;
709
710 netdev_info(adapter->netdev,
711 "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
712 adapter->drv_tx_rings, adapter->drv_sds_rings,
713 num_msix);
714
715 goto restore;
716 } else if (err < 0) {
717 return err;
718 }
719
720 adapter->ahw->num_msix = num_msix;
721 if (adapter->drv_tss_rings > 0)
722 adapter->drv_tx_rings = adapter->drv_tss_rings;
723
724 if (adapter->drv_rss_rings > 0)
725 adapter->drv_sds_rings = adapter->drv_rss_rings;
726
727 return 0;
728 }
729
qlcnic_enable_msix(struct qlcnic_adapter * adapter,u32 num_msix)730 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
731 {
732 struct pci_dev *pdev = adapter->pdev;
733 int err, vector;
734
735 if (!adapter->msix_entries) {
736 adapter->msix_entries = kzalloc_objs(struct msix_entry,
737 num_msix);
738 if (!adapter->msix_entries)
739 return -ENOMEM;
740 }
741
742 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
743
744 if (adapter->ahw->msix_supported) {
745 enable_msix:
746 for (vector = 0; vector < num_msix; vector++)
747 adapter->msix_entries[vector].entry = vector;
748
749 err = pci_enable_msix_range(pdev,
750 adapter->msix_entries, 1, num_msix);
751
752 if (err == num_msix) {
753 adapter->flags |= QLCNIC_MSIX_ENABLED;
754 adapter->ahw->num_msix = num_msix;
755 dev_info(&pdev->dev, "using msi-x interrupts\n");
756 return 0;
757 } else if (err > 0) {
758 pci_disable_msix(pdev);
759
760 dev_info(&pdev->dev,
761 "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
762 num_msix, err);
763
764 if (qlcnic_82xx_check(adapter)) {
765 num_msix = rounddown_pow_of_two(err);
766 if (err < QLCNIC_82XX_MINIMUM_VECTOR)
767 return -ENOSPC;
768 } else {
769 num_msix = rounddown_pow_of_two(err - 1);
770 num_msix += 1;
771 if (err < QLCNIC_83XX_MINIMUM_VECTOR)
772 return -ENOSPC;
773 }
774
775 if (qlcnic_82xx_check(adapter) &&
776 !qlcnic_check_multi_tx(adapter)) {
777 adapter->drv_sds_rings = num_msix;
778 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
779 } else {
780 /* Distribute vectors equally */
781 adapter->drv_tx_rings = num_msix / 2;
782 adapter->drv_sds_rings = adapter->drv_tx_rings;
783 }
784
785 if (num_msix) {
786 dev_info(&pdev->dev,
787 "Trying to allocate %d MSI-X interrupt vectors\n",
788 num_msix);
789 goto enable_msix;
790 }
791 } else {
792 dev_info(&pdev->dev,
793 "Unable to allocate %d MSI-X vectors, err=%d\n",
794 num_msix, err);
795 return err;
796 }
797 }
798
799 return -EIO;
800 }
801
qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter * adapter)802 static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
803 {
804 int num_msix;
805
806 num_msix = adapter->drv_sds_rings;
807
808 if (qlcnic_check_multi_tx(adapter))
809 num_msix += adapter->drv_tx_rings;
810 else
811 num_msix += QLCNIC_SINGLE_RING;
812
813 return num_msix;
814 }
815
qlcnic_enable_msi_legacy(struct qlcnic_adapter * adapter)816 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
817 {
818 int err = 0;
819 u32 offset, mask_reg;
820 const struct qlcnic_legacy_intr_set *legacy_intrp;
821 struct qlcnic_hardware_context *ahw = adapter->ahw;
822 struct pci_dev *pdev = adapter->pdev;
823
824 if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
825 adapter->flags |= QLCNIC_MSI_ENABLED;
826 offset = msi_tgt_status[adapter->ahw->pci_func];
827 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
828 offset);
829 dev_info(&pdev->dev, "using msi interrupts\n");
830 adapter->msix_entries[0].vector = pdev->irq;
831 return err;
832 }
833
834 if (qlcnic_use_msi || qlcnic_use_msi_x)
835 return -EOPNOTSUPP;
836
837 legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
838 adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
839 offset = legacy_intrp->tgt_status_reg;
840 adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
841 mask_reg = legacy_intrp->tgt_mask_reg;
842 adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
843 adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
844 adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
845 dev_info(&pdev->dev, "using legacy interrupts\n");
846 adapter->msix_entries[0].vector = pdev->irq;
847 return err;
848 }
849
qlcnic_82xx_setup_intr(struct qlcnic_adapter * adapter)850 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
851 {
852 int num_msix, err = 0;
853
854 if (adapter->flags & QLCNIC_TSS_RSS) {
855 err = qlcnic_setup_tss_rss_intr(adapter);
856 if (err < 0)
857 return err;
858 num_msix = adapter->ahw->num_msix;
859 } else {
860 num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
861
862 err = qlcnic_enable_msix(adapter, num_msix);
863 if (err == -ENOMEM)
864 return err;
865
866 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
867 qlcnic_disable_multi_tx(adapter);
868 adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
869
870 err = qlcnic_enable_msi_legacy(adapter);
871 if (err)
872 return err;
873 }
874 }
875
876 return 0;
877 }
878
qlcnic_82xx_mq_intrpt(struct qlcnic_adapter * adapter,int op_type)879 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
880 {
881 struct qlcnic_hardware_context *ahw = adapter->ahw;
882 int err, i;
883
884 if (qlcnic_check_multi_tx(adapter) &&
885 !ahw->diag_test &&
886 (adapter->flags & QLCNIC_MSIX_ENABLED)) {
887 ahw->intr_tbl =
888 vzalloc(array_size(sizeof(struct qlcnic_intrpt_config),
889 ahw->num_msix));
890 if (!ahw->intr_tbl)
891 return -ENOMEM;
892
893 for (i = 0; i < ahw->num_msix; i++) {
894 ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
895 ahw->intr_tbl[i].id = i;
896 ahw->intr_tbl[i].src = 0;
897 }
898
899 err = qlcnic_82xx_config_intrpt(adapter, 1);
900 if (err)
901 dev_err(&adapter->pdev->dev,
902 "Failed to configure Interrupt for %d vector\n",
903 ahw->num_msix);
904 return err;
905 }
906
907 return 0;
908 }
909
qlcnic_teardown_intr(struct qlcnic_adapter * adapter)910 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
911 {
912 if (adapter->flags & QLCNIC_MSIX_ENABLED)
913 pci_disable_msix(adapter->pdev);
914 if (adapter->flags & QLCNIC_MSI_ENABLED)
915 pci_disable_msi(adapter->pdev);
916
917 kfree(adapter->msix_entries);
918 adapter->msix_entries = NULL;
919
920 if (adapter->ahw->intr_tbl) {
921 vfree(adapter->ahw->intr_tbl);
922 adapter->ahw->intr_tbl = NULL;
923 }
924 }
925
qlcnic_cleanup_pci_map(struct qlcnic_hardware_context * ahw)926 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
927 {
928 if (ahw->pci_base0 != NULL)
929 iounmap(ahw->pci_base0);
930 }
931
qlcnic_get_act_pci_func(struct qlcnic_adapter * adapter)932 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
933 {
934 struct qlcnic_hardware_context *ahw = adapter->ahw;
935 struct qlcnic_pci_info *pci_info;
936 int ret;
937
938 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
939 switch (ahw->port_type) {
940 case QLCNIC_GBE:
941 ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
942 break;
943 case QLCNIC_XGBE:
944 ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
945 break;
946 }
947 return 0;
948 }
949
950 if (ahw->op_mode == QLCNIC_MGMT_FUNC)
951 return 0;
952
953 pci_info = kzalloc_objs(*pci_info, ahw->max_vnic_func);
954 if (!pci_info)
955 return -ENOMEM;
956
957 ret = qlcnic_get_pci_info(adapter, pci_info);
958 kfree(pci_info);
959 return ret;
960 }
961
qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter * adapter)962 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
963 {
964 bool ret = false;
965
966 if (qlcnic_84xx_check(adapter)) {
967 ret = true;
968 } else if (qlcnic_83xx_check(adapter)) {
969 if (adapter->ahw->extra_capability[0] &
970 QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
971 ret = true;
972 else
973 ret = false;
974 }
975
976 return ret;
977 }
978
qlcnic_init_pci_info(struct qlcnic_adapter * adapter)979 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
980 {
981 struct qlcnic_hardware_context *ahw = adapter->ahw;
982 struct qlcnic_pci_info *pci_info;
983 int i, id = 0, ret = 0, j = 0;
984 u16 act_pci_func;
985 u8 pfn;
986
987 pci_info = kzalloc_objs(*pci_info, ahw->max_vnic_func);
988 if (!pci_info)
989 return -ENOMEM;
990
991 ret = qlcnic_get_pci_info(adapter, pci_info);
992 if (ret)
993 goto err_pci_info;
994
995 act_pci_func = ahw->total_nic_func;
996
997 adapter->npars = kzalloc_objs(struct qlcnic_npar_info, act_pci_func);
998 if (!adapter->npars) {
999 ret = -ENOMEM;
1000 goto err_pci_info;
1001 }
1002
1003 adapter->eswitch = kzalloc_objs(struct qlcnic_eswitch,
1004 QLCNIC_NIU_MAX_XG_PORTS);
1005 if (!adapter->eswitch) {
1006 ret = -ENOMEM;
1007 goto err_npars;
1008 }
1009
1010 for (i = 0; i < ahw->max_vnic_func; i++) {
1011 pfn = pci_info[i].id;
1012
1013 if (pfn >= ahw->max_vnic_func) {
1014 ret = -EINVAL;
1015 dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
1016 __func__, pfn, ahw->max_vnic_func);
1017 goto err_eswitch;
1018 }
1019
1020 if (!pci_info[i].active ||
1021 (pci_info[i].type != QLCNIC_TYPE_NIC))
1022 continue;
1023
1024 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1025 if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1026 &id))
1027 adapter->npars[j].eswitch_status = true;
1028 else
1029 continue;
1030 } else {
1031 adapter->npars[j].eswitch_status = true;
1032 }
1033
1034 adapter->npars[j].pci_func = pfn;
1035 adapter->npars[j].active = (u8)pci_info[i].active;
1036 adapter->npars[j].type = (u8)pci_info[i].type;
1037 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1038 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1039 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1040
1041 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1042 j++;
1043 }
1044
1045 /* Update eSwitch status for adapters without per port eSwitch
1046 * configuration capability
1047 */
1048 if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1049 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1050 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1051 }
1052
1053 kfree(pci_info);
1054 return 0;
1055
1056 err_eswitch:
1057 kfree(adapter->eswitch);
1058 adapter->eswitch = NULL;
1059 err_npars:
1060 kfree(adapter->npars);
1061 adapter->npars = NULL;
1062 err_pci_info:
1063 kfree(pci_info);
1064
1065 return ret;
1066 }
1067
1068 static int
qlcnic_set_function_modes(struct qlcnic_adapter * adapter)1069 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1070 {
1071 u8 id;
1072 int ret;
1073 u32 data = QLCNIC_MGMT_FUNC;
1074 struct qlcnic_hardware_context *ahw = adapter->ahw;
1075
1076 ret = qlcnic_api_lock(adapter);
1077 if (ret)
1078 goto err_lock;
1079
1080 id = ahw->pci_func;
1081 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1082 data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1083 QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1084 QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1085 qlcnic_api_unlock(adapter);
1086 err_lock:
1087 return ret;
1088 }
1089
qlcnic_check_vf(struct qlcnic_adapter * adapter,const struct pci_device_id * ent)1090 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1091 const struct pci_device_id *ent)
1092 {
1093 u32 op_mode, priv_level;
1094
1095 /* Determine FW API version */
1096 adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1097 QLCNIC_FW_API);
1098
1099 /* Find PCI function number */
1100 qlcnic_get_func_no(adapter);
1101
1102 /* Determine function privilege level */
1103 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1104 if (op_mode == QLC_DEV_DRV_DEFAULT)
1105 priv_level = QLCNIC_MGMT_FUNC;
1106 else
1107 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1108
1109 if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1110 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1111 dev_info(&adapter->pdev->dev,
1112 "HAL Version: %d Non Privileged function\n",
1113 adapter->ahw->fw_hal_version);
1114 adapter->nic_ops = &qlcnic_vf_ops;
1115 } else
1116 adapter->nic_ops = &qlcnic_ops;
1117 }
1118
1119 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1120 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
qlcnic_get_bar_length(u32 dev_id,ulong * bar)1121 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1122 {
1123 switch (dev_id) {
1124 case PCI_DEVICE_ID_QLOGIC_QLE824X:
1125 *bar = QLCNIC_82XX_BAR0_LENGTH;
1126 break;
1127 case PCI_DEVICE_ID_QLOGIC_QLE834X:
1128 case PCI_DEVICE_ID_QLOGIC_QLE8830:
1129 case PCI_DEVICE_ID_QLOGIC_QLE844X:
1130 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1131 case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1132 case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
1133 *bar = QLCNIC_83XX_BAR0_LENGTH;
1134 break;
1135 default:
1136 *bar = 0;
1137 }
1138 }
1139
qlcnic_setup_pci_map(struct pci_dev * pdev,struct qlcnic_hardware_context * ahw)1140 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1141 struct qlcnic_hardware_context *ahw)
1142 {
1143 u32 offset;
1144 void __iomem *mem_ptr0 = NULL;
1145 unsigned long mem_len, pci_len0 = 0, bar0_len;
1146
1147 /* remap phys address */
1148 mem_len = pci_resource_len(pdev, 0);
1149
1150 qlcnic_get_bar_length(pdev->device, &bar0_len);
1151 if (mem_len >= bar0_len) {
1152
1153 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1154 if (mem_ptr0 == NULL) {
1155 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1156 return -EIO;
1157 }
1158 pci_len0 = mem_len;
1159 } else {
1160 return -EIO;
1161 }
1162
1163 dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1164
1165 ahw->pci_base0 = mem_ptr0;
1166 ahw->pci_len0 = pci_len0;
1167 offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1168 qlcnic_get_ioaddr(ahw, offset);
1169
1170 return 0;
1171 }
1172
qlcnic_validate_subsystem_id(struct qlcnic_adapter * adapter,int index)1173 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1174 int index)
1175 {
1176 struct pci_dev *pdev = adapter->pdev;
1177 unsigned short subsystem_vendor;
1178 bool ret = true;
1179
1180 subsystem_vendor = pdev->subsystem_vendor;
1181
1182 if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1183 pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1184 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1185 qlcnic_boards[index].sub_device == pdev->subsystem_device)
1186 ret = true;
1187 else
1188 ret = false;
1189 }
1190
1191 return ret;
1192 }
1193
qlcnic_get_board_name(struct qlcnic_adapter * adapter,char * name)1194 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1195 {
1196 struct pci_dev *pdev = adapter->pdev;
1197 int i, found = 0;
1198
1199 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1200 if (qlcnic_boards[i].vendor == pdev->vendor &&
1201 qlcnic_boards[i].device == pdev->device &&
1202 qlcnic_validate_subsystem_id(adapter, i)) {
1203 found = 1;
1204 break;
1205 }
1206 }
1207
1208 if (!found)
1209 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1210 else
1211 sprintf(name, "%pM: %s" , adapter->mac_addr,
1212 qlcnic_boards[i].short_name);
1213 }
1214
1215 static void
qlcnic_check_options(struct qlcnic_adapter * adapter)1216 qlcnic_check_options(struct qlcnic_adapter *adapter)
1217 {
1218 int err;
1219 u32 fw_major, fw_minor, fw_build, prev_fw_version;
1220 struct pci_dev *pdev = adapter->pdev;
1221 struct qlcnic_hardware_context *ahw = adapter->ahw;
1222 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1223
1224 prev_fw_version = adapter->fw_version;
1225
1226 fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1227 fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1228 fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1229
1230 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1231
1232 err = qlcnic_get_board_info(adapter);
1233 if (err) {
1234 dev_err(&pdev->dev, "Error getting board config info.\n");
1235 return;
1236 }
1237 if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1238 if (fw_dump->tmpl_hdr == NULL ||
1239 adapter->fw_version > prev_fw_version) {
1240 vfree(fw_dump->tmpl_hdr);
1241 if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1242 dev_info(&pdev->dev,
1243 "Supports FW dump capability\n");
1244 }
1245 }
1246
1247 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1248 QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1249
1250 if (adapter->ahw->port_type == QLCNIC_XGBE) {
1251 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1252 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1253 adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1254 } else {
1255 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1256 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1257 }
1258
1259 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1260 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1261
1262 } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1263 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1264 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1265 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1266 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1267 }
1268
1269 adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1270
1271 adapter->num_txd = MAX_CMD_DESCRIPTORS;
1272
1273 adapter->max_rds_rings = MAX_RDS_RINGS;
1274 }
1275
1276 static int
qlcnic_initialize_nic(struct qlcnic_adapter * adapter)1277 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1278 {
1279 struct qlcnic_info nic_info;
1280 int err = 0;
1281
1282 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1283 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1284 if (err)
1285 return err;
1286
1287 adapter->ahw->physical_port = (u8)nic_info.phys_port;
1288 adapter->ahw->switch_mode = nic_info.switch_mode;
1289 adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1290 adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1291 adapter->ahw->capabilities = nic_info.capabilities;
1292
1293 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1294 u32 temp;
1295 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1296 if (err == -EIO)
1297 return err;
1298 adapter->ahw->extra_capability[0] = temp;
1299 } else {
1300 adapter->ahw->extra_capability[0] = 0;
1301 }
1302
1303 adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1304 adapter->ahw->max_mtu = nic_info.max_mtu;
1305
1306 if (adapter->ahw->capabilities & BIT_6) {
1307 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1308 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1309 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1310 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1311
1312 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1313 } else {
1314 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1315 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1316 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1317 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1318 }
1319
1320 return err;
1321 }
1322
qlcnic_set_vlan_config(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1323 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1324 struct qlcnic_esw_func_cfg *esw_cfg)
1325 {
1326 if (esw_cfg->discard_tagged)
1327 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1328 else
1329 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1330
1331 if (esw_cfg->vlan_id) {
1332 adapter->rx_pvid = esw_cfg->vlan_id;
1333 adapter->tx_pvid = esw_cfg->vlan_id;
1334 } else {
1335 adapter->rx_pvid = 0;
1336 adapter->tx_pvid = 0;
1337 }
1338 }
1339
1340 static int
qlcnic_vlan_rx_add(struct net_device * netdev,__be16 proto,u16 vid)1341 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1342 {
1343 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1344 int err;
1345
1346 if (qlcnic_sriov_vf_check(adapter)) {
1347 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1348 if (err) {
1349 netdev_err(netdev,
1350 "Cannot add VLAN filter for VLAN id %d, err=%d",
1351 vid, err);
1352 return err;
1353 }
1354 }
1355
1356 set_bit(vid, adapter->vlans);
1357 return 0;
1358 }
1359
1360 static int
qlcnic_vlan_rx_del(struct net_device * netdev,__be16 proto,u16 vid)1361 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1362 {
1363 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1364 int err;
1365
1366 if (qlcnic_sriov_vf_check(adapter)) {
1367 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1368 if (err) {
1369 netdev_err(netdev,
1370 "Cannot delete VLAN filter for VLAN id %d, err=%d",
1371 vid, err);
1372 return err;
1373 }
1374 }
1375
1376 qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1377 clear_bit(vid, adapter->vlans);
1378 return 0;
1379 }
1380
qlcnic_set_eswitch_port_features(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1381 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1382 struct qlcnic_esw_func_cfg *esw_cfg)
1383 {
1384 adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1385 QLCNIC_PROMISC_DISABLED);
1386
1387 if (esw_cfg->mac_anti_spoof)
1388 adapter->flags |= QLCNIC_MACSPOOF;
1389
1390 if (!esw_cfg->mac_override)
1391 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1392
1393 if (!esw_cfg->promisc_mode)
1394 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1395 }
1396
qlcnic_set_eswitch_port_config(struct qlcnic_adapter * adapter)1397 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1398 {
1399 struct qlcnic_esw_func_cfg esw_cfg;
1400
1401 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1402 return 0;
1403
1404 esw_cfg.pci_func = adapter->ahw->pci_func;
1405 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1406 return -EIO;
1407 qlcnic_set_vlan_config(adapter, &esw_cfg);
1408 qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1409 qlcnic_set_netdev_features(adapter, &esw_cfg);
1410
1411 return 0;
1412 }
1413
qlcnic_set_netdev_features(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1414 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1415 struct qlcnic_esw_func_cfg *esw_cfg)
1416 {
1417 struct net_device *netdev = adapter->netdev;
1418
1419 if (qlcnic_83xx_check(adapter))
1420 return;
1421
1422 adapter->offload_flags = esw_cfg->offload_flags;
1423 adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1424 netdev_update_features(netdev);
1425 adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1426 }
1427
1428 static int
qlcnic_check_eswitch_mode(struct qlcnic_adapter * adapter)1429 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1430 {
1431 u32 op_mode, priv_level;
1432 int err = 0;
1433
1434 err = qlcnic_initialize_nic(adapter);
1435 if (err)
1436 return err;
1437
1438 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1439 return 0;
1440
1441 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1442 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1443
1444 if (op_mode == QLC_DEV_DRV_DEFAULT)
1445 priv_level = QLCNIC_MGMT_FUNC;
1446 else
1447 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1448
1449 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1450 if (priv_level == QLCNIC_MGMT_FUNC) {
1451 adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1452 err = qlcnic_init_pci_info(adapter);
1453 if (err)
1454 return err;
1455 /* Set privilege level for other functions */
1456 qlcnic_set_function_modes(adapter);
1457 dev_info(&adapter->pdev->dev,
1458 "HAL Version: %d, Management function\n",
1459 adapter->ahw->fw_hal_version);
1460 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1461 adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1462 dev_info(&adapter->pdev->dev,
1463 "HAL Version: %d, Privileged function\n",
1464 adapter->ahw->fw_hal_version);
1465 }
1466 } else {
1467 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1468 }
1469
1470 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1471
1472 return err;
1473 }
1474
qlcnic_set_default_offload_settings(struct qlcnic_adapter * adapter)1475 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1476 {
1477 struct qlcnic_esw_func_cfg esw_cfg;
1478 struct qlcnic_npar_info *npar;
1479 u8 i;
1480
1481 if (adapter->need_fw_reset)
1482 return 0;
1483
1484 for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1485 if (!adapter->npars[i].eswitch_status)
1486 continue;
1487
1488 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1489 esw_cfg.pci_func = adapter->npars[i].pci_func;
1490 esw_cfg.mac_override = BIT_0;
1491 esw_cfg.promisc_mode = BIT_0;
1492 if (qlcnic_82xx_check(adapter)) {
1493 esw_cfg.offload_flags = BIT_0;
1494 if (QLCNIC_IS_TSO_CAPABLE(adapter))
1495 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1496 }
1497 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1498 return -EIO;
1499 npar = &adapter->npars[i];
1500 npar->pvid = esw_cfg.vlan_id;
1501 npar->mac_override = esw_cfg.mac_override;
1502 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1503 npar->discard_tagged = esw_cfg.discard_tagged;
1504 npar->promisc_mode = esw_cfg.promisc_mode;
1505 npar->offload_flags = esw_cfg.offload_flags;
1506 }
1507
1508 return 0;
1509 }
1510
1511
1512 static int
qlcnic_reset_eswitch_config(struct qlcnic_adapter * adapter,struct qlcnic_npar_info * npar,int pci_func)1513 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1514 struct qlcnic_npar_info *npar, int pci_func)
1515 {
1516 struct qlcnic_esw_func_cfg esw_cfg;
1517 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1518 esw_cfg.pci_func = pci_func;
1519 esw_cfg.vlan_id = npar->pvid;
1520 esw_cfg.mac_override = npar->mac_override;
1521 esw_cfg.discard_tagged = npar->discard_tagged;
1522 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1523 esw_cfg.offload_flags = npar->offload_flags;
1524 esw_cfg.promisc_mode = npar->promisc_mode;
1525 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1526 return -EIO;
1527
1528 esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1529 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1530 return -EIO;
1531
1532 return 0;
1533 }
1534
qlcnic_reset_npar_config(struct qlcnic_adapter * adapter)1535 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1536 {
1537 int i, err;
1538 struct qlcnic_npar_info *npar;
1539 struct qlcnic_info nic_info;
1540 u8 pci_func;
1541
1542 if (qlcnic_82xx_check(adapter))
1543 if (!adapter->need_fw_reset)
1544 return 0;
1545
1546 /* Set the NPAR config data after FW reset */
1547 for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1548 npar = &adapter->npars[i];
1549 pci_func = npar->pci_func;
1550 if (!adapter->npars[i].eswitch_status)
1551 continue;
1552
1553 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1554 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1555 if (err)
1556 return err;
1557 nic_info.min_tx_bw = npar->min_bw;
1558 nic_info.max_tx_bw = npar->max_bw;
1559 err = qlcnic_set_nic_info(adapter, &nic_info);
1560 if (err)
1561 return err;
1562
1563 if (npar->enable_pm) {
1564 err = qlcnic_config_port_mirroring(adapter,
1565 npar->dest_npar, 1,
1566 pci_func);
1567 if (err)
1568 return err;
1569 }
1570 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1571 if (err)
1572 return err;
1573 }
1574 return 0;
1575 }
1576
qlcnic_check_npar_opertional(struct qlcnic_adapter * adapter)1577 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1578 {
1579 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1580 u32 npar_state;
1581
1582 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1583 return 0;
1584
1585 npar_state = QLC_SHARED_REG_RD32(adapter,
1586 QLCNIC_CRB_DEV_NPAR_STATE);
1587 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1588 msleep(1000);
1589 npar_state = QLC_SHARED_REG_RD32(adapter,
1590 QLCNIC_CRB_DEV_NPAR_STATE);
1591 }
1592 if (!npar_opt_timeo) {
1593 dev_err(&adapter->pdev->dev,
1594 "Waiting for NPAR state to operational timeout\n");
1595 return -EIO;
1596 }
1597 return 0;
1598 }
1599
1600 static int
qlcnic_set_mgmt_operations(struct qlcnic_adapter * adapter)1601 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1602 {
1603 int err;
1604
1605 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1606 adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1607 return 0;
1608
1609 err = qlcnic_set_default_offload_settings(adapter);
1610 if (err)
1611 return err;
1612
1613 err = qlcnic_reset_npar_config(adapter);
1614 if (err)
1615 return err;
1616
1617 qlcnic_dev_set_npar_ready(adapter);
1618
1619 return err;
1620 }
1621
qlcnic_82xx_start_firmware(struct qlcnic_adapter * adapter)1622 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1623 {
1624 int err;
1625
1626 err = qlcnic_can_start_firmware(adapter);
1627 if (err < 0)
1628 return err;
1629 else if (!err)
1630 goto check_fw_status;
1631
1632 if (qlcnic_load_fw_file)
1633 qlcnic_request_firmware(adapter);
1634 else {
1635 err = qlcnic_check_flash_fw_ver(adapter);
1636 if (err)
1637 goto err_out;
1638
1639 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1640 }
1641
1642 err = qlcnic_need_fw_reset(adapter);
1643 if (err == 0)
1644 goto check_fw_status;
1645
1646 err = qlcnic_pinit_from_rom(adapter);
1647 if (err)
1648 goto err_out;
1649
1650 err = qlcnic_load_firmware(adapter);
1651 if (err)
1652 goto err_out;
1653
1654 qlcnic_release_firmware(adapter);
1655 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1656
1657 check_fw_status:
1658 err = qlcnic_check_fw_status(adapter);
1659 if (err)
1660 goto err_out;
1661
1662 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1663 qlcnic_idc_debug_info(adapter, 1);
1664 err = qlcnic_check_eswitch_mode(adapter);
1665 if (err) {
1666 dev_err(&adapter->pdev->dev,
1667 "Memory allocation failed for eswitch\n");
1668 goto err_out;
1669 }
1670 err = qlcnic_set_mgmt_operations(adapter);
1671 if (err)
1672 goto err_out;
1673
1674 qlcnic_check_options(adapter);
1675 adapter->need_fw_reset = 0;
1676
1677 qlcnic_release_firmware(adapter);
1678 return 0;
1679
1680 err_out:
1681 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1682 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1683
1684 qlcnic_release_firmware(adapter);
1685 return err;
1686 }
1687
1688 static int
qlcnic_request_irq(struct qlcnic_adapter * adapter)1689 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1690 {
1691 irq_handler_t handler;
1692 struct qlcnic_host_sds_ring *sds_ring;
1693 struct qlcnic_host_tx_ring *tx_ring;
1694 int err, ring, num_sds_rings;
1695
1696 unsigned long flags = 0;
1697 struct net_device *netdev = adapter->netdev;
1698 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1699
1700 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1701 if (qlcnic_82xx_check(adapter))
1702 handler = qlcnic_tmp_intr;
1703 else
1704 handler = qlcnic_83xx_tmp_intr;
1705 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1706 flags |= IRQF_SHARED;
1707
1708 } else {
1709 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1710 handler = qlcnic_msix_intr;
1711 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1712 handler = qlcnic_msi_intr;
1713 else {
1714 flags |= IRQF_SHARED;
1715 if (qlcnic_82xx_check(adapter))
1716 handler = qlcnic_intr;
1717 else
1718 handler = qlcnic_83xx_intr;
1719 }
1720 }
1721 adapter->irq = netdev->irq;
1722
1723 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1724 if (qlcnic_82xx_check(adapter) ||
1725 (qlcnic_83xx_check(adapter) &&
1726 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1727 num_sds_rings = adapter->drv_sds_rings;
1728 for (ring = 0; ring < num_sds_rings; ring++) {
1729 sds_ring = &recv_ctx->sds_rings[ring];
1730 if (qlcnic_82xx_check(adapter) &&
1731 !qlcnic_check_multi_tx(adapter) &&
1732 (ring == (num_sds_rings - 1))) {
1733 if (!(adapter->flags &
1734 QLCNIC_MSIX_ENABLED))
1735 snprintf(sds_ring->name,
1736 sizeof(sds_ring->name),
1737 "qlcnic");
1738 else
1739 snprintf(sds_ring->name,
1740 sizeof(sds_ring->name),
1741 "%s-tx-0-rx-%d",
1742 netdev->name, ring);
1743 } else {
1744 snprintf(sds_ring->name,
1745 sizeof(sds_ring->name),
1746 "%s-rx-%d",
1747 netdev->name, ring);
1748 }
1749 err = request_irq(sds_ring->irq, handler, flags,
1750 sds_ring->name, sds_ring);
1751 if (err)
1752 return err;
1753 }
1754 }
1755 if ((qlcnic_82xx_check(adapter) &&
1756 qlcnic_check_multi_tx(adapter)) ||
1757 (qlcnic_83xx_check(adapter) &&
1758 (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1759 !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1760 handler = qlcnic_msix_tx_intr;
1761 for (ring = 0; ring < adapter->drv_tx_rings;
1762 ring++) {
1763 tx_ring = &adapter->tx_ring[ring];
1764 snprintf(tx_ring->name, sizeof(tx_ring->name),
1765 "%s-tx-%d", netdev->name, ring);
1766 err = request_irq(tx_ring->irq, handler, flags,
1767 tx_ring->name, tx_ring);
1768 if (err)
1769 return err;
1770 }
1771 }
1772 }
1773 return 0;
1774 }
1775
1776 static void
qlcnic_free_irq(struct qlcnic_adapter * adapter)1777 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1778 {
1779 int ring;
1780 struct qlcnic_host_sds_ring *sds_ring;
1781 struct qlcnic_host_tx_ring *tx_ring;
1782
1783 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1784
1785 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1786 if (qlcnic_82xx_check(adapter) ||
1787 (qlcnic_83xx_check(adapter) &&
1788 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1789 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1790 sds_ring = &recv_ctx->sds_rings[ring];
1791 free_irq(sds_ring->irq, sds_ring);
1792 }
1793 }
1794 if ((qlcnic_83xx_check(adapter) &&
1795 !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1796 (qlcnic_82xx_check(adapter) &&
1797 qlcnic_check_multi_tx(adapter))) {
1798 for (ring = 0; ring < adapter->drv_tx_rings;
1799 ring++) {
1800 tx_ring = &adapter->tx_ring[ring];
1801 if (tx_ring->irq)
1802 free_irq(tx_ring->irq, tx_ring);
1803 }
1804 }
1805 }
1806 }
1807
qlcnic_get_lro_mss_capability(struct qlcnic_adapter * adapter)1808 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1809 {
1810 u32 capab = 0;
1811
1812 if (qlcnic_82xx_check(adapter)) {
1813 if (adapter->ahw->extra_capability[0] &
1814 QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1815 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1816 } else {
1817 capab = adapter->ahw->capabilities;
1818 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1819 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1820 }
1821 }
1822
qlcnic_config_def_intr_coalesce(struct qlcnic_adapter * adapter)1823 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1824 {
1825 struct qlcnic_hardware_context *ahw = adapter->ahw;
1826 int err;
1827
1828 /* Initialize interrupt coalesce parameters */
1829 ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1830
1831 if (qlcnic_83xx_check(adapter)) {
1832 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1833 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1834 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1835 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1836 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1837
1838 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1839 } else {
1840 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1841 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1842 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1843
1844 err = qlcnic_82xx_set_rx_coalesce(adapter);
1845 }
1846
1847 return err;
1848 }
1849
__qlcnic_up(struct qlcnic_adapter * adapter,struct net_device * netdev)1850 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1851 {
1852 int ring;
1853 struct qlcnic_host_rds_ring *rds_ring;
1854
1855 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1856 return -EIO;
1857
1858 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1859 return 0;
1860
1861 if (qlcnic_set_eswitch_port_config(adapter))
1862 return -EIO;
1863
1864 qlcnic_get_lro_mss_capability(adapter);
1865
1866 if (qlcnic_fw_create_ctx(adapter))
1867 return -EIO;
1868
1869 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1870 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1871 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1872 }
1873
1874 qlcnic_set_multi(netdev);
1875 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1876
1877 adapter->ahw->linkup = 0;
1878
1879 if (adapter->drv_sds_rings > 1)
1880 qlcnic_config_rss(adapter, 1);
1881
1882 qlcnic_config_def_intr_coalesce(adapter);
1883
1884 if (netdev->features & NETIF_F_LRO)
1885 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1886
1887 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1888 qlcnic_napi_enable(adapter);
1889
1890 qlcnic_linkevent_request(adapter, 1);
1891
1892 adapter->ahw->reset_context = 0;
1893 netif_tx_start_all_queues(netdev);
1894 return 0;
1895 }
1896
qlcnic_up(struct qlcnic_adapter * adapter,struct net_device * netdev)1897 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1898 {
1899 int err = 0;
1900
1901 rtnl_lock();
1902 if (netif_running(netdev))
1903 err = __qlcnic_up(adapter, netdev);
1904 rtnl_unlock();
1905
1906 return err;
1907 }
1908
__qlcnic_down(struct qlcnic_adapter * adapter,struct net_device * netdev)1909 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1910 {
1911 int ring;
1912
1913 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1914 return;
1915
1916 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1917 return;
1918
1919 smp_mb();
1920 netif_carrier_off(netdev);
1921 adapter->ahw->linkup = 0;
1922 netif_tx_disable(netdev);
1923
1924 qlcnic_free_mac_list(adapter);
1925
1926 if (adapter->fhash.fnum)
1927 qlcnic_delete_lb_filters(adapter);
1928
1929 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1930 if (qlcnic_sriov_vf_check(adapter))
1931 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1932
1933 qlcnic_napi_disable(adapter);
1934
1935 qlcnic_fw_destroy_ctx(adapter);
1936 adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1937
1938 qlcnic_reset_rx_buffers_list(adapter);
1939
1940 for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1941 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1942 }
1943
1944 /* Usage: During suspend and firmware recovery module */
1945
qlcnic_down(struct qlcnic_adapter * adapter,struct net_device * netdev)1946 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1947 {
1948 rtnl_lock();
1949 if (netif_running(netdev))
1950 __qlcnic_down(adapter, netdev);
1951 rtnl_unlock();
1952
1953 }
1954
1955 int
qlcnic_attach(struct qlcnic_adapter * adapter)1956 qlcnic_attach(struct qlcnic_adapter *adapter)
1957 {
1958 struct net_device *netdev = adapter->netdev;
1959 struct pci_dev *pdev = adapter->pdev;
1960 int err;
1961
1962 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1963 return 0;
1964
1965 err = qlcnic_napi_add(adapter, netdev);
1966 if (err)
1967 return err;
1968
1969 err = qlcnic_alloc_sw_resources(adapter);
1970 if (err) {
1971 dev_err(&pdev->dev, "Error in setting sw resources\n");
1972 goto err_out_napi_del;
1973 }
1974
1975 err = qlcnic_alloc_hw_resources(adapter);
1976 if (err) {
1977 dev_err(&pdev->dev, "Error in setting hw resources\n");
1978 goto err_out_free_sw;
1979 }
1980
1981 err = qlcnic_request_irq(adapter);
1982 if (err) {
1983 dev_err(&pdev->dev, "failed to setup interrupt\n");
1984 goto err_out_free_hw;
1985 }
1986
1987 qlcnic_create_sysfs_entries(adapter);
1988
1989 if (qlcnic_encap_rx_offload(adapter))
1990 udp_tunnel_nic_reset_ntf(netdev);
1991
1992 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1993 return 0;
1994
1995 err_out_free_hw:
1996 qlcnic_free_hw_resources(adapter);
1997 err_out_free_sw:
1998 qlcnic_free_sw_resources(adapter);
1999 err_out_napi_del:
2000 qlcnic_napi_del(adapter);
2001 return err;
2002 }
2003
qlcnic_detach(struct qlcnic_adapter * adapter)2004 void qlcnic_detach(struct qlcnic_adapter *adapter)
2005 {
2006 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2007 return;
2008
2009 qlcnic_remove_sysfs_entries(adapter);
2010
2011 qlcnic_free_hw_resources(adapter);
2012 qlcnic_release_rx_buffers(adapter);
2013 qlcnic_free_irq(adapter);
2014 qlcnic_napi_del(adapter);
2015 qlcnic_free_sw_resources(adapter);
2016
2017 adapter->is_up = 0;
2018 }
2019
qlcnic_diag_free_res(struct net_device * netdev,int drv_sds_rings)2020 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2021 {
2022 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2023 struct qlcnic_host_sds_ring *sds_ring;
2024 int drv_tx_rings = adapter->drv_tx_rings;
2025 int ring;
2026
2027 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2028 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2029 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2030 sds_ring = &adapter->recv_ctx->sds_rings[ring];
2031 qlcnic_disable_sds_intr(adapter, sds_ring);
2032 }
2033 }
2034
2035 qlcnic_fw_destroy_ctx(adapter);
2036
2037 qlcnic_detach(adapter);
2038
2039 adapter->ahw->diag_test = 0;
2040 adapter->drv_sds_rings = drv_sds_rings;
2041 adapter->drv_tx_rings = drv_tx_rings;
2042
2043 if (qlcnic_attach(adapter))
2044 goto out;
2045
2046 if (netif_running(netdev))
2047 __qlcnic_up(adapter, netdev);
2048 out:
2049 netif_device_attach(netdev);
2050 }
2051
qlcnic_alloc_adapter_resources(struct qlcnic_adapter * adapter)2052 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2053 {
2054 struct qlcnic_hardware_context *ahw = adapter->ahw;
2055 int err = 0;
2056
2057 adapter->recv_ctx = kzalloc_obj(struct qlcnic_recv_context);
2058 if (!adapter->recv_ctx) {
2059 err = -ENOMEM;
2060 goto err_out;
2061 }
2062
2063 if (qlcnic_83xx_check(adapter)) {
2064 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2065 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
2066 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
2067 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2068 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2069 } else {
2070 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
2071 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2072 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2073 }
2074
2075 /* clear stats */
2076 memset(&adapter->stats, 0, sizeof(adapter->stats));
2077 err_out:
2078 return err;
2079 }
2080
qlcnic_free_adapter_resources(struct qlcnic_adapter * adapter)2081 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2082 {
2083 struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
2084
2085 kfree(adapter->recv_ctx);
2086 adapter->recv_ctx = NULL;
2087
2088 if (fw_dump->tmpl_hdr) {
2089 vfree(fw_dump->tmpl_hdr);
2090 fw_dump->tmpl_hdr = NULL;
2091 }
2092
2093 if (fw_dump->dma_buffer) {
2094 dma_free_coherent(&adapter->pdev->dev, QLC_PEX_DMA_READ_SIZE,
2095 fw_dump->dma_buffer, fw_dump->phys_addr);
2096 fw_dump->dma_buffer = NULL;
2097 }
2098
2099 kfree(adapter->ahw->reset.buff);
2100 adapter->ahw->fw_dump.tmpl_hdr = NULL;
2101 }
2102
qlcnic_diag_alloc_res(struct net_device * netdev,int test)2103 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2104 {
2105 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2106 struct qlcnic_host_sds_ring *sds_ring;
2107 struct qlcnic_host_rds_ring *rds_ring;
2108 int ring;
2109 int ret;
2110
2111 netif_device_detach(netdev);
2112
2113 if (netif_running(netdev))
2114 __qlcnic_down(adapter, netdev);
2115
2116 qlcnic_detach(adapter);
2117
2118 adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2119 adapter->ahw->diag_test = test;
2120 adapter->ahw->linkup = 0;
2121
2122 ret = qlcnic_attach(adapter);
2123 if (ret) {
2124 netif_device_attach(netdev);
2125 return ret;
2126 }
2127
2128 ret = qlcnic_fw_create_ctx(adapter);
2129 if (ret) {
2130 qlcnic_detach(adapter);
2131 netif_device_attach(netdev);
2132 return ret;
2133 }
2134
2135 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2136 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2137 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2138 }
2139
2140 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2141 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2142 sds_ring = &adapter->recv_ctx->sds_rings[ring];
2143 qlcnic_enable_sds_intr(adapter, sds_ring);
2144 }
2145 }
2146
2147 if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2148 adapter->ahw->loopback_state = 0;
2149 qlcnic_linkevent_request(adapter, 1);
2150 }
2151
2152 set_bit(__QLCNIC_DEV_UP, &adapter->state);
2153
2154 return 0;
2155 }
2156
2157 /* Reset context in hardware only */
2158 static int
qlcnic_reset_hw_context(struct qlcnic_adapter * adapter)2159 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2160 {
2161 struct net_device *netdev = adapter->netdev;
2162
2163 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2164 return -EBUSY;
2165
2166 netif_device_detach(netdev);
2167
2168 qlcnic_down(adapter, netdev);
2169
2170 qlcnic_up(adapter, netdev);
2171
2172 netif_device_attach(netdev);
2173
2174 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2175 netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2176 return 0;
2177 }
2178
2179 int
qlcnic_reset_context(struct qlcnic_adapter * adapter)2180 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2181 {
2182 int err = 0;
2183 struct net_device *netdev = adapter->netdev;
2184
2185 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2186 return -EBUSY;
2187
2188 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2189
2190 netif_device_detach(netdev);
2191
2192 if (netif_running(netdev))
2193 __qlcnic_down(adapter, netdev);
2194
2195 qlcnic_detach(adapter);
2196
2197 if (netif_running(netdev)) {
2198 err = qlcnic_attach(adapter);
2199 if (!err) {
2200 __qlcnic_up(adapter, netdev);
2201 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2202 }
2203 }
2204
2205 netif_device_attach(netdev);
2206 }
2207
2208 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2209 return err;
2210 }
2211
qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter * adapter)2212 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2213 {
2214 struct qlcnic_hardware_context *ahw = adapter->ahw;
2215 u16 act_pci_fn = ahw->total_nic_func;
2216 u16 count;
2217
2218 ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2219 if (act_pci_fn <= 2)
2220 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2221 act_pci_fn;
2222 else
2223 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2224 act_pci_fn;
2225 ahw->max_uc_count = count;
2226 }
2227
qlcnic_set_real_num_queues(struct qlcnic_adapter * adapter,u8 tx_queues,u8 rx_queues)2228 static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
2229 u8 tx_queues, u8 rx_queues)
2230 {
2231 struct net_device *netdev = adapter->netdev;
2232 int err = 0;
2233
2234 if (tx_queues) {
2235 err = netif_set_real_num_tx_queues(netdev, tx_queues);
2236 if (err) {
2237 netdev_err(netdev, "failed to set %d Tx queues\n",
2238 tx_queues);
2239 return err;
2240 }
2241 }
2242
2243 if (rx_queues) {
2244 err = netif_set_real_num_rx_queues(netdev, rx_queues);
2245 if (err)
2246 netdev_err(netdev, "failed to set %d Rx queues\n",
2247 rx_queues);
2248 }
2249
2250 return err;
2251 }
2252
2253 int
qlcnic_setup_netdev(struct qlcnic_adapter * adapter,struct net_device * netdev)2254 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev)
2255 {
2256 int err;
2257 struct pci_dev *pdev = adapter->pdev;
2258
2259 adapter->rx_csum = 1;
2260 adapter->ahw->mc_enabled = 0;
2261 qlcnic_set_mac_filter_count(adapter);
2262
2263 netdev->netdev_ops = &qlcnic_netdev_ops;
2264 netdev->watchdog_timeo = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2265
2266 qlcnic_change_mtu(netdev, netdev->mtu);
2267
2268 netdev->ethtool_ops = (qlcnic_sriov_vf_check(adapter)) ?
2269 &qlcnic_sriov_vf_ethtool_ops : &qlcnic_ethtool_ops;
2270
2271 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2272 NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2273 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HIGHDMA);
2274 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2275 NETIF_F_IPV6_CSUM | NETIF_F_HIGHDMA);
2276
2277 if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2278 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2279 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2280 }
2281
2282 if (qlcnic_vlan_tx_check(adapter))
2283 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2284
2285 if (qlcnic_sriov_vf_check(adapter))
2286 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2287
2288 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2289 netdev->features |= NETIF_F_LRO;
2290
2291 if (qlcnic_encap_tx_offload(adapter)) {
2292 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2293
2294 /* encapsulation Tx offload supported by Adapter */
2295 netdev->hw_enc_features = NETIF_F_IP_CSUM |
2296 NETIF_F_GSO_UDP_TUNNEL |
2297 NETIF_F_TSO |
2298 NETIF_F_TSO6;
2299 }
2300
2301 if (qlcnic_encap_rx_offload(adapter)) {
2302 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2303
2304 netdev->udp_tunnel_nic_info = &qlcnic_udp_tunnels;
2305 }
2306
2307 netdev->hw_features = netdev->features;
2308 netdev->priv_flags |= IFF_UNICAST_FLT;
2309 netdev->irq = adapter->msix_entries[0].vector;
2310
2311 /* MTU range: 68 - 9600 */
2312 netdev->min_mtu = P3P_MIN_MTU;
2313 netdev->max_mtu = P3P_MAX_MTU;
2314
2315 err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings,
2316 adapter->drv_sds_rings);
2317 if (err)
2318 return err;
2319
2320 qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2321
2322 err = register_netdev(netdev);
2323 if (err) {
2324 dev_err(&pdev->dev, "failed to register net device\n");
2325 return err;
2326 }
2327
2328 return 0;
2329 }
2330
qlcnic_free_tx_rings(struct qlcnic_adapter * adapter)2331 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2332 {
2333 int ring;
2334 struct qlcnic_host_tx_ring *tx_ring;
2335
2336 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2337 tx_ring = &adapter->tx_ring[ring];
2338 if (tx_ring) {
2339 vfree(tx_ring->cmd_buf_arr);
2340 tx_ring->cmd_buf_arr = NULL;
2341 }
2342 }
2343 kfree(adapter->tx_ring);
2344 }
2345
qlcnic_alloc_tx_rings(struct qlcnic_adapter * adapter,struct net_device * netdev)2346 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2347 struct net_device *netdev)
2348 {
2349 int ring, vector, index;
2350 struct qlcnic_host_tx_ring *tx_ring;
2351 struct qlcnic_cmd_buffer *cmd_buf_arr;
2352
2353 tx_ring = kzalloc_objs(struct qlcnic_host_tx_ring,
2354 adapter->drv_tx_rings);
2355 if (tx_ring == NULL)
2356 return -ENOMEM;
2357
2358 adapter->tx_ring = tx_ring;
2359
2360 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2361 tx_ring = &adapter->tx_ring[ring];
2362 tx_ring->num_desc = adapter->num_txd;
2363 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2364 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2365 if (cmd_buf_arr == NULL) {
2366 qlcnic_free_tx_rings(adapter);
2367 return -ENOMEM;
2368 }
2369 tx_ring->cmd_buf_arr = cmd_buf_arr;
2370 spin_lock_init(&tx_ring->tx_clean_lock);
2371 }
2372
2373 if (qlcnic_83xx_check(adapter) ||
2374 (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2375 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2376 tx_ring = &adapter->tx_ring[ring];
2377 tx_ring->adapter = adapter;
2378 if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2379 index = adapter->drv_sds_rings + ring;
2380 vector = adapter->msix_entries[index].vector;
2381 tx_ring->irq = vector;
2382 }
2383 }
2384 }
2385
2386 return 0;
2387 }
2388
qlcnic_set_drv_version(struct qlcnic_adapter * adapter)2389 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2390 {
2391 struct qlcnic_hardware_context *ahw = adapter->ahw;
2392 u32 fw_cmd = 0;
2393
2394 if (qlcnic_82xx_check(adapter))
2395 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2396 else if (qlcnic_83xx_check(adapter))
2397 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2398
2399 if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2400 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2401 }
2402
2403 /* Reset firmware API lock */
qlcnic_reset_api_lock(struct qlcnic_adapter * adapter)2404 static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2405 {
2406 qlcnic_api_lock(adapter);
2407 qlcnic_api_unlock(adapter);
2408 }
2409
2410
2411 static int
qlcnic_probe(struct pci_dev * pdev,const struct pci_device_id * ent)2412 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2413 {
2414 struct net_device *netdev = NULL;
2415 struct qlcnic_adapter *adapter = NULL;
2416 struct qlcnic_hardware_context *ahw;
2417 char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2418 int err;
2419
2420 err = pci_enable_device(pdev);
2421 if (err)
2422 return err;
2423
2424 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2425 err = -ENODEV;
2426 goto err_out_disable_pdev;
2427 }
2428
2429 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
2430 if (err) {
2431 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2432 goto err_out_disable_pdev;
2433 }
2434
2435 err = pci_request_regions(pdev, qlcnic_driver_name);
2436 if (err)
2437 goto err_out_disable_pdev;
2438
2439 pci_set_master(pdev);
2440
2441 ahw = kzalloc_obj(struct qlcnic_hardware_context);
2442 if (!ahw) {
2443 err = -ENOMEM;
2444 goto err_out_free_res;
2445 }
2446
2447 switch (ent->device) {
2448 case PCI_DEVICE_ID_QLOGIC_QLE824X:
2449 ahw->hw_ops = &qlcnic_hw_ops;
2450 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2451 break;
2452 case PCI_DEVICE_ID_QLOGIC_QLE834X:
2453 case PCI_DEVICE_ID_QLOGIC_QLE8830:
2454 case PCI_DEVICE_ID_QLOGIC_QLE844X:
2455 qlcnic_83xx_register_map(ahw);
2456 break;
2457 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2458 case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
2459 case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2460 qlcnic_sriov_vf_register_map(ahw);
2461 break;
2462 default:
2463 err = -EINVAL;
2464 goto err_out_free_hw_res;
2465 }
2466
2467 err = qlcnic_setup_pci_map(pdev, ahw);
2468 if (err)
2469 goto err_out_free_hw_res;
2470
2471 netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2472 QLCNIC_MAX_TX_RINGS);
2473 if (!netdev) {
2474 err = -ENOMEM;
2475 goto err_out_iounmap;
2476 }
2477
2478 SET_NETDEV_DEV(netdev, &pdev->dev);
2479
2480 adapter = netdev_priv(netdev);
2481 adapter->netdev = netdev;
2482 adapter->pdev = pdev;
2483 adapter->ahw = ahw;
2484
2485 adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2486 if (adapter->qlcnic_wq == NULL) {
2487 err = -ENOMEM;
2488 dev_err(&pdev->dev, "Failed to create workqueue\n");
2489 goto err_out_free_netdev;
2490 }
2491
2492 err = qlcnic_alloc_adapter_resources(adapter);
2493 if (err)
2494 goto err_out_free_wq;
2495
2496 adapter->dev_rst_time = jiffies;
2497 ahw->revision_id = pdev->revision;
2498 ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2499 if (qlcnic_mac_learn == FDB_MAC_LEARN)
2500 adapter->fdb_mac_learn = true;
2501 else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2502 adapter->drv_mac_learn = true;
2503
2504 rwlock_init(&adapter->ahw->crb_lock);
2505 mutex_init(&adapter->ahw->mem_lock);
2506
2507 INIT_LIST_HEAD(&adapter->mac_list);
2508
2509 qlcnic_register_dcb(adapter);
2510
2511 if (qlcnic_82xx_check(adapter)) {
2512 qlcnic_check_vf(adapter, ent);
2513 adapter->portnum = adapter->ahw->pci_func;
2514 qlcnic_reset_api_lock(adapter);
2515 err = qlcnic_start_firmware(adapter);
2516 if (err) {
2517 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2518 "\t\tIf reboot doesn't help, try flashing the card\n");
2519 goto err_out_maintenance_mode;
2520 }
2521
2522 /* compute and set default and max tx/sds rings */
2523 if (adapter->ahw->msix_supported) {
2524 if (qlcnic_check_multi_tx_capability(adapter) == 1)
2525 qlcnic_set_tx_ring_count(adapter,
2526 QLCNIC_SINGLE_RING);
2527 else
2528 qlcnic_set_tx_ring_count(adapter,
2529 QLCNIC_DEF_TX_RINGS);
2530 qlcnic_set_sds_ring_count(adapter,
2531 QLCNIC_DEF_SDS_RINGS);
2532 } else {
2533 qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2534 qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2535 }
2536
2537 err = qlcnic_setup_idc_param(adapter);
2538 if (err)
2539 goto err_out_free_hw;
2540
2541 adapter->flags |= QLCNIC_NEED_FLR;
2542
2543 } else if (qlcnic_83xx_check(adapter)) {
2544 qlcnic_83xx_check_vf(adapter, ent);
2545 adapter->portnum = adapter->ahw->pci_func;
2546 err = qlcnic_83xx_init(adapter);
2547 if (err) {
2548 switch (err) {
2549 case -ENOTRECOVERABLE:
2550 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2551 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2552 goto err_out_free_hw;
2553 case -ENOMEM:
2554 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2555 goto err_out_free_hw;
2556 case -EOPNOTSUPP:
2557 dev_err(&pdev->dev, "Adapter initialization failed\n");
2558 goto err_out_free_hw;
2559 default:
2560 dev_err(&pdev->dev, "Adapter initialization failed. Driver will load in maintenance mode to recover the adapter using the application\n");
2561 goto err_out_maintenance_mode;
2562 }
2563 }
2564
2565 if (qlcnic_sriov_vf_check(adapter))
2566 return 0;
2567 } else {
2568 dev_err(&pdev->dev,
2569 "%s: failed. Please Reboot\n", __func__);
2570 err = -ENODEV;
2571 goto err_out_free_hw;
2572 }
2573
2574 if (qlcnic_read_mac_addr(adapter))
2575 dev_warn(&pdev->dev, "failed to read mac addr\n");
2576
2577 qlcnic_read_phys_port_id(adapter);
2578
2579 if (adapter->portnum == 0) {
2580 qlcnic_get_board_name(adapter, board_name);
2581
2582 pr_info("%s: %s Board Chip rev 0x%x\n",
2583 module_name(THIS_MODULE),
2584 board_name, adapter->ahw->revision_id);
2585 }
2586
2587 if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2588 !!qlcnic_use_msi)
2589 dev_warn(&pdev->dev,
2590 "Device does not support MSI interrupts\n");
2591
2592 if (qlcnic_82xx_check(adapter)) {
2593 err = qlcnic_dcb_enable(adapter->dcb);
2594 if (err) {
2595 qlcnic_dcb_free(adapter->dcb);
2596 dev_err(&pdev->dev, "Failed to enable DCB\n");
2597 goto err_out_free_hw;
2598 }
2599
2600 qlcnic_dcb_get_info(adapter->dcb);
2601 err = qlcnic_setup_intr(adapter);
2602
2603 if (err) {
2604 dev_err(&pdev->dev, "Failed to setup interrupt\n");
2605 goto err_out_disable_msi;
2606 }
2607 }
2608
2609 err = qlcnic_get_act_pci_func(adapter);
2610 if (err)
2611 goto err_out_disable_mbx_intr;
2612
2613 if (adapter->portnum == 0)
2614 qlcnic_set_drv_version(adapter);
2615
2616 err = qlcnic_setup_netdev(adapter, netdev);
2617 if (err)
2618 goto err_out_disable_mbx_intr;
2619
2620 pci_set_drvdata(pdev, adapter);
2621
2622 if (qlcnic_82xx_check(adapter))
2623 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2624 FW_POLL_DELAY);
2625
2626 switch (adapter->ahw->port_type) {
2627 case QLCNIC_GBE:
2628 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2629 adapter->netdev->name);
2630 break;
2631 case QLCNIC_XGBE:
2632 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2633 adapter->netdev->name);
2634 break;
2635 }
2636
2637 if (adapter->drv_mac_learn)
2638 qlcnic_alloc_lb_filters_mem(adapter);
2639
2640 qlcnic_add_sysfs(adapter);
2641 qlcnic_register_hwmon_dev(adapter);
2642 return 0;
2643
2644 err_out_disable_mbx_intr:
2645 if (qlcnic_83xx_check(adapter))
2646 qlcnic_83xx_free_mbx_intr(adapter);
2647
2648 err_out_disable_msi:
2649 qlcnic_teardown_intr(adapter);
2650 qlcnic_cancel_idc_work(adapter);
2651 qlcnic_clr_all_drv_state(adapter, 0);
2652
2653 err_out_free_hw:
2654 qlcnic_free_adapter_resources(adapter);
2655
2656 err_out_free_wq:
2657 destroy_workqueue(adapter->qlcnic_wq);
2658
2659 err_out_free_netdev:
2660 free_netdev(netdev);
2661
2662 err_out_iounmap:
2663 qlcnic_cleanup_pci_map(ahw);
2664
2665 err_out_free_hw_res:
2666 kfree(ahw);
2667
2668 err_out_free_res:
2669 pci_release_regions(pdev);
2670
2671 err_out_disable_pdev:
2672 pci_disable_device(pdev);
2673 return err;
2674
2675 err_out_maintenance_mode:
2676 set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2677 netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2678 netdev->ethtool_ops = &qlcnic_ethtool_failed_ops;
2679 ahw->port_type = QLCNIC_XGBE;
2680
2681 if (qlcnic_83xx_check(adapter))
2682 adapter->tgt_status_reg = NULL;
2683 else
2684 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2685
2686 err = register_netdev(netdev);
2687
2688 if (err) {
2689 dev_err(&pdev->dev, "Failed to register net device\n");
2690 qlcnic_clr_all_drv_state(adapter, 0);
2691 goto err_out_free_hw;
2692 }
2693
2694 pci_set_drvdata(pdev, adapter);
2695 qlcnic_add_sysfs(adapter);
2696
2697 return 0;
2698 }
2699
qlcnic_remove(struct pci_dev * pdev)2700 static void qlcnic_remove(struct pci_dev *pdev)
2701 {
2702 struct qlcnic_adapter *adapter;
2703 struct net_device *netdev;
2704 struct qlcnic_hardware_context *ahw;
2705
2706 adapter = pci_get_drvdata(pdev);
2707 if (adapter == NULL)
2708 return;
2709
2710 netdev = adapter->netdev;
2711
2712 qlcnic_cancel_idc_work(adapter);
2713 qlcnic_sriov_pf_disable(adapter);
2714 ahw = adapter->ahw;
2715
2716 unregister_netdev(netdev);
2717 qlcnic_sriov_cleanup(adapter);
2718
2719 if (qlcnic_83xx_check(adapter)) {
2720 qlcnic_83xx_initialize_nic(adapter, 0);
2721 cancel_delayed_work_sync(&adapter->idc_aen_work);
2722 qlcnic_83xx_free_mbx_intr(adapter);
2723 qlcnic_83xx_detach_mailbox_work(adapter);
2724 qlcnic_83xx_free_mailbox(ahw->mailbox);
2725 kfree(ahw->fw_info);
2726 }
2727
2728 qlcnic_dcb_free(adapter->dcb);
2729 qlcnic_detach(adapter);
2730 kfree(adapter->npars);
2731 kfree(adapter->eswitch);
2732
2733 if (qlcnic_82xx_check(adapter))
2734 qlcnic_clr_all_drv_state(adapter, 0);
2735
2736 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2737
2738 qlcnic_free_lb_filters_mem(adapter);
2739
2740 qlcnic_teardown_intr(adapter);
2741
2742 qlcnic_remove_sysfs(adapter);
2743
2744 qlcnic_unregister_hwmon_dev(adapter);
2745
2746 qlcnic_cleanup_pci_map(adapter->ahw);
2747
2748 qlcnic_release_firmware(adapter);
2749
2750 pci_release_regions(pdev);
2751 pci_disable_device(pdev);
2752
2753 if (adapter->qlcnic_wq) {
2754 destroy_workqueue(adapter->qlcnic_wq);
2755 adapter->qlcnic_wq = NULL;
2756 }
2757
2758 qlcnic_free_adapter_resources(adapter);
2759 kfree(ahw);
2760 free_netdev(netdev);
2761 }
2762
qlcnic_shutdown(struct pci_dev * pdev)2763 static void qlcnic_shutdown(struct pci_dev *pdev)
2764 {
2765 if (__qlcnic_shutdown(pdev))
2766 return;
2767
2768 pci_disable_device(pdev);
2769 }
2770
qlcnic_suspend(struct device * dev_d)2771 static int __maybe_unused qlcnic_suspend(struct device *dev_d)
2772 {
2773 return __qlcnic_shutdown(to_pci_dev(dev_d));
2774 }
2775
qlcnic_resume(struct device * dev_d)2776 static int __maybe_unused qlcnic_resume(struct device *dev_d)
2777 {
2778 struct qlcnic_adapter *adapter = dev_get_drvdata(dev_d);
2779
2780 return __qlcnic_resume(adapter);
2781 }
2782
qlcnic_open(struct net_device * netdev)2783 static int qlcnic_open(struct net_device *netdev)
2784 {
2785 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2786 int err;
2787
2788 if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2789 netdev_err(netdev, "%s: Device is in non-operational state\n",
2790 __func__);
2791
2792 return -EIO;
2793 }
2794
2795 netif_carrier_off(netdev);
2796
2797 err = qlcnic_attach(adapter);
2798 if (err)
2799 return err;
2800
2801 err = __qlcnic_up(adapter, netdev);
2802 if (err)
2803 qlcnic_detach(adapter);
2804
2805 return err;
2806 }
2807
2808 /*
2809 * qlcnic_close - Disables a network interface entry point
2810 */
qlcnic_close(struct net_device * netdev)2811 static int qlcnic_close(struct net_device *netdev)
2812 {
2813 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2814
2815 __qlcnic_down(adapter, netdev);
2816
2817 return 0;
2818 }
2819
2820 #define QLCNIC_VF_LB_BUCKET_SIZE 1
2821
qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter * adapter)2822 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2823 {
2824 void *head;
2825 int i;
2826 struct net_device *netdev = adapter->netdev;
2827 u32 filter_size = 0;
2828 u16 act_pci_func = 0;
2829
2830 if (adapter->fhash.fmax && adapter->fhash.fhead)
2831 return;
2832
2833 act_pci_func = adapter->ahw->total_nic_func;
2834 spin_lock_init(&adapter->mac_learn_lock);
2835 spin_lock_init(&adapter->rx_mac_learn_lock);
2836
2837 if (qlcnic_sriov_vf_check(adapter)) {
2838 filter_size = QLCNIC_83XX_SRIOV_VF_MAX_MAC - 1;
2839 adapter->fhash.fbucket_size = QLCNIC_VF_LB_BUCKET_SIZE;
2840 } else if (qlcnic_82xx_check(adapter)) {
2841 filter_size = QLCNIC_LB_MAX_FILTERS;
2842 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2843 } else {
2844 filter_size = QLC_83XX_LB_MAX_FILTERS;
2845 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2846 }
2847
2848 head = kzalloc_objs(struct hlist_head, adapter->fhash.fbucket_size,
2849 GFP_ATOMIC);
2850
2851 if (!head)
2852 return;
2853
2854 adapter->fhash.fmax = (filter_size / act_pci_func);
2855 adapter->fhash.fhead = head;
2856
2857 netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2858 act_pci_func, adapter->fhash.fmax);
2859
2860 for (i = 0; i < adapter->fhash.fbucket_size; i++)
2861 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2862
2863 adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2864
2865 head = kzalloc_objs(struct hlist_head, adapter->rx_fhash.fbucket_size,
2866 GFP_ATOMIC);
2867
2868 if (!head)
2869 return;
2870
2871 adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2872 adapter->rx_fhash.fhead = head;
2873
2874 for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2875 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2876 }
2877
qlcnic_free_lb_filters_mem(struct qlcnic_adapter * adapter)2878 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2879 {
2880 if (adapter->fhash.fmax)
2881 kfree(adapter->fhash.fhead);
2882
2883 adapter->fhash.fhead = NULL;
2884 adapter->fhash.fmax = 0;
2885
2886 if (adapter->rx_fhash.fmax)
2887 kfree(adapter->rx_fhash.fhead);
2888
2889 adapter->rx_fhash.fmax = 0;
2890 adapter->rx_fhash.fhead = NULL;
2891 }
2892
qlcnic_check_temp(struct qlcnic_adapter * adapter)2893 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2894 {
2895 struct net_device *netdev = adapter->netdev;
2896 u32 temp_state, temp_val, temp = 0;
2897 int rv = 0;
2898
2899 if (qlcnic_83xx_check(adapter))
2900 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2901
2902 if (qlcnic_82xx_check(adapter))
2903 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2904
2905 temp_state = qlcnic_get_temp_state(temp);
2906 temp_val = qlcnic_get_temp_val(temp);
2907
2908 if (temp_state == QLCNIC_TEMP_PANIC) {
2909 dev_err(&netdev->dev,
2910 "Device temperature %d degrees C exceeds"
2911 " maximum allowed. Hardware has been shut down.\n",
2912 temp_val);
2913 rv = 1;
2914 } else if (temp_state == QLCNIC_TEMP_WARN) {
2915 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2916 dev_err(&netdev->dev,
2917 "Device temperature %d degrees C "
2918 "exceeds operating range."
2919 " Immediate action needed.\n",
2920 temp_val);
2921 }
2922 } else {
2923 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2924 dev_info(&netdev->dev,
2925 "Device temperature is now %d degrees C"
2926 " in normal range.\n", temp_val);
2927 }
2928 }
2929 adapter->ahw->temp = temp_state;
2930 return rv;
2931 }
2932
dump_tx_ring_desc(struct qlcnic_host_tx_ring * tx_ring)2933 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2934 {
2935 int i;
2936
2937 for (i = 0; i < tx_ring->num_desc; i++) {
2938 pr_info("TX Desc: %d\n", i);
2939 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
2940 &tx_ring->desc_head[i],
2941 sizeof(struct cmd_desc_type0), true);
2942 }
2943 }
2944
qlcnic_dump_rings(struct qlcnic_adapter * adapter)2945 static void qlcnic_dump_rings(struct qlcnic_adapter *adapter)
2946 {
2947 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2948 struct net_device *netdev = adapter->netdev;
2949 struct qlcnic_host_rds_ring *rds_ring;
2950 struct qlcnic_host_sds_ring *sds_ring;
2951 struct qlcnic_host_tx_ring *tx_ring;
2952 int ring;
2953
2954 if (!netdev || !netif_running(netdev))
2955 return;
2956
2957 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2958 rds_ring = &recv_ctx->rds_rings[ring];
2959 if (!rds_ring)
2960 continue;
2961 netdev_info(netdev,
2962 "rds_ring=%d crb_rcv_producer=%d producer=%u num_desc=%u\n",
2963 ring, readl(rds_ring->crb_rcv_producer),
2964 rds_ring->producer, rds_ring->num_desc);
2965 }
2966
2967 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2968 sds_ring = &(recv_ctx->sds_rings[ring]);
2969 if (!sds_ring)
2970 continue;
2971 netdev_info(netdev,
2972 "sds_ring=%d crb_sts_consumer=%d consumer=%u crb_intr_mask=%d num_desc=%u\n",
2973 ring, readl(sds_ring->crb_sts_consumer),
2974 sds_ring->consumer, readl(sds_ring->crb_intr_mask),
2975 sds_ring->num_desc);
2976 }
2977
2978 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2979 tx_ring = &adapter->tx_ring[ring];
2980 if (!tx_ring)
2981 continue;
2982 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
2983 ring, tx_ring->ctx_id);
2984 netdev_info(netdev,
2985 "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
2986 tx_ring->tx_stats.xmit_finished,
2987 tx_ring->tx_stats.xmit_called,
2988 tx_ring->tx_stats.xmit_on,
2989 tx_ring->tx_stats.xmit_off);
2990
2991 if (tx_ring->crb_intr_mask)
2992 netdev_info(netdev, "crb_intr_mask=%d\n",
2993 readl(tx_ring->crb_intr_mask));
2994
2995 netdev_info(netdev,
2996 "hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
2997 readl(tx_ring->crb_cmd_producer),
2998 tx_ring->producer, tx_ring->sw_consumer,
2999 le32_to_cpu(*(tx_ring->hw_consumer)));
3000
3001 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
3002 tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
3003
3004 if (netif_msg_tx_err(adapter->ahw))
3005 dump_tx_ring_desc(tx_ring);
3006 }
3007
3008 }
3009
qlcnic_tx_timeout(struct net_device * netdev,unsigned int txqueue)3010 static void qlcnic_tx_timeout(struct net_device *netdev, unsigned int txqueue)
3011 {
3012 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3013
3014 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3015 return;
3016
3017 qlcnic_dump_rings(adapter);
3018
3019 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS ||
3020 netif_msg_tx_err(adapter->ahw)) {
3021 netdev_err(netdev, "Tx timeout, reset the adapter.\n");
3022 if (qlcnic_82xx_check(adapter))
3023 adapter->need_fw_reset = 1;
3024 else if (qlcnic_83xx_check(adapter))
3025 qlcnic_83xx_idc_request_reset(adapter,
3026 QLCNIC_FORCE_FW_DUMP_KEY);
3027 } else {
3028 netdev_err(netdev, "Tx timeout, reset adapter context.\n");
3029 adapter->ahw->reset_context = 1;
3030 }
3031 }
3032
qlcnic_get_stats(struct net_device * netdev)3033 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3034 {
3035 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3036 struct net_device_stats *stats = &netdev->stats;
3037
3038 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3039 qlcnic_update_stats(adapter);
3040
3041 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3042 stats->tx_packets = adapter->stats.xmitfinished;
3043 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3044 stats->tx_bytes = adapter->stats.txbytes;
3045 stats->rx_dropped = adapter->stats.rxdropped;
3046 stats->tx_dropped = adapter->stats.txdropped;
3047
3048 return stats;
3049 }
3050
qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter * adapter)3051 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3052 {
3053 u32 status;
3054
3055 status = readl(adapter->isr_int_vec);
3056
3057 if (!(status & adapter->ahw->int_vec_bit))
3058 return IRQ_NONE;
3059
3060 /* check interrupt state machine, to be sure */
3061 status = readl(adapter->crb_int_state_reg);
3062 if (!ISR_LEGACY_INT_TRIGGERED(status))
3063 return IRQ_NONE;
3064
3065 writel(0xffffffff, adapter->tgt_status_reg);
3066 /* read twice to ensure write is flushed */
3067 readl(adapter->isr_int_vec);
3068 readl(adapter->isr_int_vec);
3069
3070 return IRQ_HANDLED;
3071 }
3072
qlcnic_tmp_intr(int irq,void * data)3073 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3074 {
3075 struct qlcnic_host_sds_ring *sds_ring = data;
3076 struct qlcnic_adapter *adapter = sds_ring->adapter;
3077
3078 if (adapter->flags & QLCNIC_MSIX_ENABLED)
3079 goto done;
3080 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3081 writel(0xffffffff, adapter->tgt_status_reg);
3082 goto done;
3083 }
3084
3085 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3086 return IRQ_NONE;
3087
3088 done:
3089 adapter->ahw->diag_cnt++;
3090 qlcnic_enable_sds_intr(adapter, sds_ring);
3091 return IRQ_HANDLED;
3092 }
3093
qlcnic_intr(int irq,void * data)3094 static irqreturn_t qlcnic_intr(int irq, void *data)
3095 {
3096 struct qlcnic_host_sds_ring *sds_ring = data;
3097 struct qlcnic_adapter *adapter = sds_ring->adapter;
3098
3099 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3100 return IRQ_NONE;
3101
3102 napi_schedule(&sds_ring->napi);
3103
3104 return IRQ_HANDLED;
3105 }
3106
qlcnic_msi_intr(int irq,void * data)3107 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3108 {
3109 struct qlcnic_host_sds_ring *sds_ring = data;
3110 struct qlcnic_adapter *adapter = sds_ring->adapter;
3111
3112 /* clear interrupt */
3113 writel(0xffffffff, adapter->tgt_status_reg);
3114
3115 napi_schedule(&sds_ring->napi);
3116 return IRQ_HANDLED;
3117 }
3118
qlcnic_msix_intr(int irq,void * data)3119 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3120 {
3121 struct qlcnic_host_sds_ring *sds_ring = data;
3122
3123 napi_schedule(&sds_ring->napi);
3124 return IRQ_HANDLED;
3125 }
3126
qlcnic_msix_tx_intr(int irq,void * data)3127 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3128 {
3129 struct qlcnic_host_tx_ring *tx_ring = data;
3130
3131 napi_schedule(&tx_ring->napi);
3132 return IRQ_HANDLED;
3133 }
3134
3135 static void
qlcnic_idc_debug_info(struct qlcnic_adapter * adapter,u8 encoding)3136 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3137 {
3138 u32 val;
3139
3140 val = adapter->portnum & 0xf;
3141 val |= encoding << 7;
3142 val |= (jiffies - adapter->dev_rst_time) << 8;
3143
3144 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3145 adapter->dev_rst_time = jiffies;
3146 }
3147
3148 static int
qlcnic_set_drv_state(struct qlcnic_adapter * adapter,u8 state)3149 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3150 {
3151 u32 val;
3152
3153 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3154 state != QLCNIC_DEV_NEED_QUISCENT);
3155
3156 if (qlcnic_api_lock(adapter))
3157 return -EIO;
3158
3159 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3160
3161 if (state == QLCNIC_DEV_NEED_RESET)
3162 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3163 else if (state == QLCNIC_DEV_NEED_QUISCENT)
3164 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3165
3166 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3167
3168 qlcnic_api_unlock(adapter);
3169
3170 return 0;
3171 }
3172
3173 static int
qlcnic_clr_drv_state(struct qlcnic_adapter * adapter)3174 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3175 {
3176 u32 val;
3177
3178 if (qlcnic_api_lock(adapter))
3179 return -EBUSY;
3180
3181 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3182 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3183 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3184
3185 qlcnic_api_unlock(adapter);
3186
3187 return 0;
3188 }
3189
qlcnic_clr_all_drv_state(struct qlcnic_adapter * adapter,u8 failed)3190 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3191 {
3192 u32 val;
3193
3194 if (qlcnic_api_lock(adapter))
3195 goto err;
3196
3197 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3198 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3199 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3200
3201 if (failed) {
3202 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3203 QLCNIC_DEV_FAILED);
3204 dev_info(&adapter->pdev->dev,
3205 "Device state set to Failed. Please Reboot\n");
3206 } else if (!(val & 0x11111111))
3207 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3208 QLCNIC_DEV_COLD);
3209
3210 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3211 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3212 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3213
3214 qlcnic_api_unlock(adapter);
3215 err:
3216 adapter->fw_fail_cnt = 0;
3217 adapter->flags &= ~QLCNIC_FW_HANG;
3218 clear_bit(__QLCNIC_START_FW, &adapter->state);
3219 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3220 }
3221
3222 /* Grab api lock, before checking state */
3223 static int
qlcnic_check_drv_state(struct qlcnic_adapter * adapter)3224 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3225 {
3226 int act, state, active_mask;
3227 struct qlcnic_hardware_context *ahw = adapter->ahw;
3228
3229 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3230 act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3231
3232 if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3233 active_mask = (~(1 << (ahw->pci_func * 4)));
3234 act = act & active_mask;
3235 }
3236
3237 if (((state & 0x11111111) == (act & 0x11111111)) ||
3238 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3239 return 0;
3240 else
3241 return 1;
3242 }
3243
qlcnic_check_idc_ver(struct qlcnic_adapter * adapter)3244 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3245 {
3246 u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3247
3248 if (val != QLCNIC_DRV_IDC_VER) {
3249 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3250 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3251 }
3252
3253 return 0;
3254 }
3255
3256 static int
qlcnic_can_start_firmware(struct qlcnic_adapter * adapter)3257 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3258 {
3259 u32 val, prev_state;
3260 u8 dev_init_timeo = adapter->dev_init_timeo;
3261 u8 portnum = adapter->portnum;
3262 u8 ret;
3263
3264 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3265 return 1;
3266
3267 if (qlcnic_api_lock(adapter))
3268 return -1;
3269
3270 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3271 if (!(val & (1 << (portnum * 4)))) {
3272 QLC_DEV_SET_REF_CNT(val, portnum);
3273 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3274 }
3275
3276 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3277 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3278
3279 switch (prev_state) {
3280 case QLCNIC_DEV_COLD:
3281 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3282 QLCNIC_DEV_INITIALIZING);
3283 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3284 QLCNIC_DRV_IDC_VER);
3285 qlcnic_idc_debug_info(adapter, 0);
3286 qlcnic_api_unlock(adapter);
3287 return 1;
3288
3289 case QLCNIC_DEV_READY:
3290 ret = qlcnic_check_idc_ver(adapter);
3291 qlcnic_api_unlock(adapter);
3292 return ret;
3293
3294 case QLCNIC_DEV_NEED_RESET:
3295 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3296 QLC_DEV_SET_RST_RDY(val, portnum);
3297 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3298 break;
3299
3300 case QLCNIC_DEV_NEED_QUISCENT:
3301 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3302 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3303 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3304 break;
3305
3306 case QLCNIC_DEV_FAILED:
3307 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3308 qlcnic_api_unlock(adapter);
3309 return -1;
3310
3311 case QLCNIC_DEV_INITIALIZING:
3312 case QLCNIC_DEV_QUISCENT:
3313 break;
3314 }
3315
3316 qlcnic_api_unlock(adapter);
3317
3318 do {
3319 msleep(1000);
3320 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3321 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3322
3323 if (!dev_init_timeo) {
3324 dev_err(&adapter->pdev->dev,
3325 "Waiting for device to initialize timeout\n");
3326 return -1;
3327 }
3328
3329 if (qlcnic_api_lock(adapter))
3330 return -1;
3331
3332 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3333 QLC_DEV_CLR_RST_QSCNT(val, portnum);
3334 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3335
3336 ret = qlcnic_check_idc_ver(adapter);
3337 qlcnic_api_unlock(adapter);
3338
3339 return ret;
3340 }
3341
3342 static void
qlcnic_fwinit_work(struct work_struct * work)3343 qlcnic_fwinit_work(struct work_struct *work)
3344 {
3345 struct qlcnic_adapter *adapter = container_of(work,
3346 struct qlcnic_adapter, fw_work.work);
3347 u32 dev_state = 0xf;
3348 u32 val;
3349
3350 if (qlcnic_api_lock(adapter))
3351 goto err_ret;
3352
3353 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3354 if (dev_state == QLCNIC_DEV_QUISCENT ||
3355 dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3356 qlcnic_api_unlock(adapter);
3357 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3358 FW_POLL_DELAY * 2);
3359 return;
3360 }
3361
3362 if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3363 qlcnic_api_unlock(adapter);
3364 goto wait_npar;
3365 }
3366
3367 if (dev_state == QLCNIC_DEV_INITIALIZING ||
3368 dev_state == QLCNIC_DEV_READY) {
3369 dev_info(&adapter->pdev->dev, "Detected state change from "
3370 "DEV_NEED_RESET, skipping ack check\n");
3371 goto skip_ack_check;
3372 }
3373
3374 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3375 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3376 adapter->reset_ack_timeo);
3377 goto skip_ack_check;
3378 }
3379
3380 if (!qlcnic_check_drv_state(adapter)) {
3381 skip_ack_check:
3382 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3383
3384 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3385 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3386 QLCNIC_DEV_INITIALIZING);
3387 set_bit(__QLCNIC_START_FW, &adapter->state);
3388 QLCDB(adapter, DRV, "Restarting fw\n");
3389 qlcnic_idc_debug_info(adapter, 0);
3390 val = QLC_SHARED_REG_RD32(adapter,
3391 QLCNIC_CRB_DRV_STATE);
3392 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3393 QLC_SHARED_REG_WR32(adapter,
3394 QLCNIC_CRB_DRV_STATE, val);
3395 }
3396
3397 qlcnic_api_unlock(adapter);
3398
3399 rtnl_lock();
3400 if (qlcnic_check_fw_dump_state(adapter) &&
3401 (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3402 QLCDB(adapter, DRV, "Take FW dump\n");
3403 qlcnic_dump_fw(adapter);
3404 adapter->flags |= QLCNIC_FW_HANG;
3405 }
3406 rtnl_unlock();
3407
3408 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3409 if (!adapter->nic_ops->start_firmware(adapter)) {
3410 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3411 adapter->fw_wait_cnt = 0;
3412 return;
3413 }
3414 goto err_ret;
3415 }
3416
3417 qlcnic_api_unlock(adapter);
3418
3419 wait_npar:
3420 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3421 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3422
3423 switch (dev_state) {
3424 case QLCNIC_DEV_READY:
3425 if (!qlcnic_start_firmware(adapter)) {
3426 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3427 adapter->fw_wait_cnt = 0;
3428 return;
3429 }
3430 break;
3431 case QLCNIC_DEV_FAILED:
3432 break;
3433 default:
3434 qlcnic_schedule_work(adapter,
3435 qlcnic_fwinit_work, FW_POLL_DELAY);
3436 return;
3437 }
3438
3439 err_ret:
3440 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3441 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3442 netif_device_attach(adapter->netdev);
3443 qlcnic_clr_all_drv_state(adapter, 0);
3444 }
3445
3446 static void
qlcnic_detach_work(struct work_struct * work)3447 qlcnic_detach_work(struct work_struct *work)
3448 {
3449 struct qlcnic_adapter *adapter = container_of(work,
3450 struct qlcnic_adapter, fw_work.work);
3451 struct net_device *netdev = adapter->netdev;
3452 u32 status;
3453
3454 netif_device_detach(netdev);
3455
3456 /* Dont grab rtnl lock during Quiscent mode */
3457 if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3458 if (netif_running(netdev))
3459 __qlcnic_down(adapter, netdev);
3460 } else
3461 qlcnic_down(adapter, netdev);
3462
3463 status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3464
3465 if (status & QLCNIC_RCODE_FATAL_ERROR) {
3466 dev_err(&adapter->pdev->dev,
3467 "Detaching the device: peg halt status1=0x%x\n",
3468 status);
3469
3470 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3471 dev_err(&adapter->pdev->dev,
3472 "On board active cooling fan failed. "
3473 "Device has been halted.\n");
3474 dev_err(&adapter->pdev->dev,
3475 "Replace the adapter.\n");
3476 }
3477
3478 goto err_ret;
3479 }
3480
3481 if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3482 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3483 adapter->ahw->temp);
3484 goto err_ret;
3485 }
3486
3487 /* Dont ack if this instance is the reset owner */
3488 if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3489 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3490 dev_err(&adapter->pdev->dev,
3491 "Failed to set driver state,"
3492 "detaching the device.\n");
3493 goto err_ret;
3494 }
3495 }
3496
3497 adapter->fw_wait_cnt = 0;
3498
3499 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3500
3501 return;
3502
3503 err_ret:
3504 netif_device_attach(netdev);
3505 qlcnic_clr_all_drv_state(adapter, 1);
3506 }
3507
3508 /*Transit NPAR state to NON Operational */
3509 static void
qlcnic_set_npar_non_operational(struct qlcnic_adapter * adapter)3510 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3511 {
3512 u32 state;
3513
3514 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3515 if (state == QLCNIC_DEV_NPAR_NON_OPER)
3516 return;
3517
3518 if (qlcnic_api_lock(adapter))
3519 return;
3520 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3521 QLCNIC_DEV_NPAR_NON_OPER);
3522 qlcnic_api_unlock(adapter);
3523 }
3524
qlcnic_82xx_dev_request_reset(struct qlcnic_adapter * adapter,u32 key)3525 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3526 u32 key)
3527 {
3528 u32 state, xg_val = 0, gb_val = 0;
3529
3530 qlcnic_xg_set_xg0_mask(xg_val);
3531 qlcnic_xg_set_xg1_mask(xg_val);
3532 QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3533 qlcnic_gb_set_gb0_mask(gb_val);
3534 qlcnic_gb_set_gb1_mask(gb_val);
3535 qlcnic_gb_set_gb2_mask(gb_val);
3536 qlcnic_gb_set_gb3_mask(gb_val);
3537 QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3538 dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3539 " on all ports\n");
3540 adapter->need_fw_reset = 1;
3541
3542 if (qlcnic_api_lock(adapter))
3543 return;
3544
3545 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3546
3547 if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3548 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3549 __func__);
3550 qlcnic_api_unlock(adapter);
3551
3552 return;
3553 }
3554
3555 if (state == QLCNIC_DEV_READY) {
3556 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3557 QLCNIC_DEV_NEED_RESET);
3558 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3559 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3560 qlcnic_idc_debug_info(adapter, 0);
3561 }
3562
3563 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3564 QLCNIC_DEV_NPAR_NON_OPER);
3565 qlcnic_api_unlock(adapter);
3566 }
3567
3568 /* Transit to NPAR READY state from NPAR NOT READY state */
3569 static void
qlcnic_dev_set_npar_ready(struct qlcnic_adapter * adapter)3570 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3571 {
3572 if (qlcnic_api_lock(adapter))
3573 return;
3574
3575 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3576 QLCNIC_DEV_NPAR_OPER);
3577 QLCDB(adapter, DRV, "NPAR operational state set\n");
3578
3579 qlcnic_api_unlock(adapter);
3580 }
3581
qlcnic_schedule_work(struct qlcnic_adapter * adapter,work_func_t func,int delay)3582 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3583 work_func_t func, int delay)
3584 {
3585 if (test_bit(__QLCNIC_AER, &adapter->state))
3586 return;
3587
3588 INIT_DELAYED_WORK(&adapter->fw_work, func);
3589 queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3590 round_jiffies_relative(delay));
3591 }
3592
3593 static void
qlcnic_attach_work(struct work_struct * work)3594 qlcnic_attach_work(struct work_struct *work)
3595 {
3596 struct qlcnic_adapter *adapter = container_of(work,
3597 struct qlcnic_adapter, fw_work.work);
3598 struct net_device *netdev = adapter->netdev;
3599 u32 npar_state;
3600
3601 if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3602 npar_state = QLC_SHARED_REG_RD32(adapter,
3603 QLCNIC_CRB_DEV_NPAR_STATE);
3604 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3605 qlcnic_clr_all_drv_state(adapter, 0);
3606 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3607 qlcnic_schedule_work(adapter, qlcnic_attach_work,
3608 FW_POLL_DELAY);
3609 else
3610 goto attach;
3611 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3612 return;
3613 }
3614 attach:
3615 qlcnic_dcb_get_info(adapter->dcb);
3616
3617 if (netif_running(netdev)) {
3618 if (qlcnic_up(adapter, netdev))
3619 goto done;
3620
3621 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3622 }
3623
3624 done:
3625 netif_device_attach(netdev);
3626 adapter->fw_fail_cnt = 0;
3627 adapter->flags &= ~QLCNIC_FW_HANG;
3628 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3629 if (adapter->portnum == 0)
3630 qlcnic_set_drv_version(adapter);
3631
3632 if (!qlcnic_clr_drv_state(adapter))
3633 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3634 FW_POLL_DELAY);
3635 }
3636
3637 static int
qlcnic_check_health(struct qlcnic_adapter * adapter)3638 qlcnic_check_health(struct qlcnic_adapter *adapter)
3639 {
3640 struct qlcnic_hardware_context *ahw = adapter->ahw;
3641 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3642 u32 state = 0, heartbeat;
3643 u32 peg_status;
3644 int err = 0;
3645
3646 if (qlcnic_check_temp(adapter))
3647 goto detach;
3648
3649 if (adapter->need_fw_reset)
3650 qlcnic_dev_request_reset(adapter, 0);
3651
3652 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3653 if (state == QLCNIC_DEV_NEED_RESET) {
3654 qlcnic_set_npar_non_operational(adapter);
3655 adapter->need_fw_reset = 1;
3656 } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3657 goto detach;
3658
3659 heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3660 if (heartbeat != adapter->heartbeat) {
3661 adapter->heartbeat = heartbeat;
3662 adapter->fw_fail_cnt = 0;
3663 if (adapter->need_fw_reset)
3664 goto detach;
3665
3666 if (ahw->reset_context && qlcnic_auto_fw_reset)
3667 qlcnic_reset_hw_context(adapter);
3668
3669 return 0;
3670 }
3671
3672 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3673 return 0;
3674
3675 adapter->flags |= QLCNIC_FW_HANG;
3676
3677 qlcnic_dev_request_reset(adapter, 0);
3678
3679 if (qlcnic_auto_fw_reset)
3680 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3681
3682 dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3683 peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3684 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3685 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3686 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3687 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3688 "PEG_NET_4_PC: 0x%x\n",
3689 peg_status,
3690 QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3691 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3692 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3693 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3694 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3695 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3696 if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3697 dev_err(&adapter->pdev->dev,
3698 "Firmware aborted with error code 0x00006700. "
3699 "Device is being reset.\n");
3700 detach:
3701 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3702 QLCNIC_DEV_NEED_RESET;
3703
3704 if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3705 &adapter->state)) {
3706
3707 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3708 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3709 } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3710 adapter->flags & QLCNIC_FW_RESET_OWNER) {
3711 qlcnic_dump_fw(adapter);
3712 }
3713
3714 return 1;
3715 }
3716
qlcnic_fw_poll_work(struct work_struct * work)3717 void qlcnic_fw_poll_work(struct work_struct *work)
3718 {
3719 struct qlcnic_adapter *adapter = container_of(work,
3720 struct qlcnic_adapter, fw_work.work);
3721
3722 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3723 goto reschedule;
3724
3725
3726 if (qlcnic_check_health(adapter))
3727 return;
3728
3729 if (adapter->fhash.fnum)
3730 qlcnic_prune_lb_filters(adapter);
3731
3732 reschedule:
3733 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3734 }
3735
qlcnic_is_first_func(struct pci_dev * pdev)3736 static int qlcnic_is_first_func(struct pci_dev *pdev)
3737 {
3738 struct pci_dev *oth_pdev;
3739 int val = pdev->devfn;
3740
3741 while (val-- > 0) {
3742 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3743 (pdev->bus), pdev->bus->number,
3744 PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3745 if (!oth_pdev)
3746 continue;
3747
3748 if (oth_pdev->current_state != PCI_D3cold) {
3749 pci_dev_put(oth_pdev);
3750 return 0;
3751 }
3752 pci_dev_put(oth_pdev);
3753 }
3754 return 1;
3755 }
3756
qlcnic_attach_func(struct pci_dev * pdev)3757 static int qlcnic_attach_func(struct pci_dev *pdev)
3758 {
3759 int err, first_func;
3760 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3761 struct net_device *netdev = adapter->netdev;
3762
3763 err = pci_enable_device(pdev);
3764 if (err)
3765 return err;
3766
3767 pci_set_master(pdev);
3768 pci_restore_state(pdev);
3769
3770 first_func = qlcnic_is_first_func(pdev);
3771
3772 if (qlcnic_api_lock(adapter))
3773 return -EINVAL;
3774
3775 if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3776 adapter->need_fw_reset = 1;
3777 set_bit(__QLCNIC_START_FW, &adapter->state);
3778 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3779 QLCNIC_DEV_INITIALIZING);
3780 QLCDB(adapter, DRV, "Restarting fw\n");
3781 }
3782 qlcnic_api_unlock(adapter);
3783
3784 err = qlcnic_start_firmware(adapter);
3785 if (err)
3786 return err;
3787
3788 qlcnic_clr_drv_state(adapter);
3789 kfree(adapter->msix_entries);
3790 adapter->msix_entries = NULL;
3791 err = qlcnic_setup_intr(adapter);
3792
3793 if (err) {
3794 kfree(adapter->msix_entries);
3795 netdev_err(netdev, "failed to setup interrupt\n");
3796 return err;
3797 }
3798
3799 if (netif_running(netdev)) {
3800 err = qlcnic_attach(adapter);
3801 if (err) {
3802 qlcnic_clr_all_drv_state(adapter, 1);
3803 clear_bit(__QLCNIC_AER, &adapter->state);
3804 netif_device_attach(netdev);
3805 return err;
3806 }
3807
3808 err = qlcnic_up(adapter, netdev);
3809 if (err)
3810 goto done;
3811
3812 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3813 }
3814 done:
3815 netif_device_attach(netdev);
3816 return err;
3817 }
3818
qlcnic_82xx_io_error_detected(struct pci_dev * pdev,pci_channel_state_t state)3819 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3820 pci_channel_state_t state)
3821 {
3822 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3823 struct net_device *netdev = adapter->netdev;
3824
3825 if (state == pci_channel_io_perm_failure)
3826 return PCI_ERS_RESULT_DISCONNECT;
3827
3828 if (state == pci_channel_io_normal)
3829 return PCI_ERS_RESULT_RECOVERED;
3830
3831 set_bit(__QLCNIC_AER, &adapter->state);
3832 netif_device_detach(netdev);
3833
3834 cancel_delayed_work_sync(&adapter->fw_work);
3835
3836 if (netif_running(netdev))
3837 qlcnic_down(adapter, netdev);
3838
3839 qlcnic_detach(adapter);
3840 qlcnic_teardown_intr(adapter);
3841
3842 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3843
3844 pci_save_state(pdev);
3845 pci_disable_device(pdev);
3846
3847 return PCI_ERS_RESULT_NEED_RESET;
3848 }
3849
qlcnic_82xx_io_slot_reset(struct pci_dev * pdev)3850 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3851 {
3852 pci_ers_result_t res;
3853
3854 rtnl_lock();
3855 res = qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3856 PCI_ERS_RESULT_RECOVERED;
3857 rtnl_unlock();
3858
3859 return res;
3860 }
3861
qlcnic_82xx_io_resume(struct pci_dev * pdev)3862 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3863 {
3864 u32 state;
3865 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3866
3867 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3868 if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3869 &adapter->state))
3870 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3871 FW_POLL_DELAY);
3872 }
3873
qlcnic_io_error_detected(struct pci_dev * pdev,pci_channel_state_t state)3874 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3875 pci_channel_state_t state)
3876 {
3877 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3878 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3879
3880 if (hw_ops->io_error_detected) {
3881 return hw_ops->io_error_detected(pdev, state);
3882 } else {
3883 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3884 return PCI_ERS_RESULT_DISCONNECT;
3885 }
3886 }
3887
qlcnic_io_slot_reset(struct pci_dev * pdev)3888 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3889 {
3890 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3891 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3892
3893 if (hw_ops->io_slot_reset) {
3894 return hw_ops->io_slot_reset(pdev);
3895 } else {
3896 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3897 return PCI_ERS_RESULT_DISCONNECT;
3898 }
3899 }
3900
qlcnic_io_resume(struct pci_dev * pdev)3901 static void qlcnic_io_resume(struct pci_dev *pdev)
3902 {
3903 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3904 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3905
3906 if (hw_ops->io_resume)
3907 hw_ops->io_resume(pdev);
3908 else
3909 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3910 }
3911
3912
3913 static int
qlcnicvf_start_firmware(struct qlcnic_adapter * adapter)3914 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3915 {
3916 int err;
3917
3918 err = qlcnic_can_start_firmware(adapter);
3919 if (err)
3920 return err;
3921
3922 err = qlcnic_check_npar_opertional(adapter);
3923 if (err)
3924 return err;
3925
3926 err = qlcnic_initialize_nic(adapter);
3927 if (err)
3928 return err;
3929
3930 qlcnic_check_options(adapter);
3931
3932 err = qlcnic_set_eswitch_port_config(adapter);
3933 if (err)
3934 return err;
3935
3936 adapter->need_fw_reset = 0;
3937
3938 return err;
3939 }
3940
qlcnic_validate_rings(struct qlcnic_adapter * adapter,__u32 ring_cnt,int queue_type)3941 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
3942 int queue_type)
3943 {
3944 struct net_device *netdev = adapter->netdev;
3945 char buf[8];
3946
3947 if (queue_type == QLCNIC_RX_QUEUE)
3948 strcpy(buf, "SDS");
3949 else
3950 strcpy(buf, "Tx");
3951
3952 if (!is_power_of_2(ring_cnt)) {
3953 netdev_err(netdev, "%s rings value should be a power of 2\n",
3954 buf);
3955 return -EINVAL;
3956 }
3957
3958 if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
3959 !qlcnic_check_multi_tx(adapter)) {
3960 netdev_err(netdev, "No Multi Tx queue support\n");
3961 return -EINVAL;
3962 }
3963
3964 if (ring_cnt > num_online_cpus()) {
3965 netdev_err(netdev,
3966 "%s value[%u] should not be higher than, number of online CPUs\n",
3967 buf, num_online_cpus());
3968 return -EINVAL;
3969 }
3970
3971 return 0;
3972 }
3973
qlcnic_setup_rings(struct qlcnic_adapter * adapter)3974 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
3975 {
3976 struct net_device *netdev = adapter->netdev;
3977 u8 tx_rings, rx_rings;
3978 int err;
3979
3980 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3981 return -EBUSY;
3982
3983 tx_rings = adapter->drv_tss_rings;
3984 rx_rings = adapter->drv_rss_rings;
3985
3986 netif_device_detach(netdev);
3987
3988 err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings);
3989 if (err)
3990 goto done;
3991
3992 if (netif_running(netdev))
3993 __qlcnic_down(adapter, netdev);
3994
3995 qlcnic_detach(adapter);
3996
3997 if (qlcnic_83xx_check(adapter)) {
3998 qlcnic_83xx_free_mbx_intr(adapter);
3999 qlcnic_83xx_enable_mbx_poll(adapter);
4000 }
4001
4002 qlcnic_teardown_intr(adapter);
4003
4004 err = qlcnic_setup_intr(adapter);
4005 if (err) {
4006 kfree(adapter->msix_entries);
4007 netdev_err(netdev, "failed to setup interrupt\n");
4008 return err;
4009 }
4010
4011 /* Check if we need to update real_num_{tx|rx}_queues because
4012 * qlcnic_setup_intr() may change Tx/Rx rings size
4013 */
4014 if ((tx_rings != adapter->drv_tx_rings) ||
4015 (rx_rings != adapter->drv_sds_rings)) {
4016 err = qlcnic_set_real_num_queues(adapter,
4017 adapter->drv_tx_rings,
4018 adapter->drv_sds_rings);
4019 if (err)
4020 goto done;
4021 }
4022
4023 if (qlcnic_83xx_check(adapter)) {
4024 qlcnic_83xx_initialize_nic(adapter, 1);
4025 err = qlcnic_83xx_setup_mbx_intr(adapter);
4026 qlcnic_83xx_disable_mbx_poll(adapter);
4027 if (err) {
4028 dev_err(&adapter->pdev->dev,
4029 "failed to setup mbx interrupt\n");
4030 goto done;
4031 }
4032 }
4033
4034 if (netif_running(netdev)) {
4035 err = qlcnic_attach(adapter);
4036 if (err)
4037 goto done;
4038 err = __qlcnic_up(adapter, netdev);
4039 if (err)
4040 goto done;
4041 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4042 }
4043 done:
4044 netif_device_attach(netdev);
4045 clear_bit(__QLCNIC_RESETTING, &adapter->state);
4046 return err;
4047 }
4048
4049 #ifdef CONFIG_INET
4050
4051 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4052
4053 static void
qlcnic_config_indev_addr(struct qlcnic_adapter * adapter,struct net_device * dev,unsigned long event)4054 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4055 struct net_device *dev, unsigned long event)
4056 {
4057 const struct in_ifaddr *ifa;
4058 struct in_device *indev;
4059
4060 indev = in_dev_get(dev);
4061 if (!indev)
4062 return;
4063
4064 in_dev_for_each_ifa_rtnl(ifa, indev) {
4065 switch (event) {
4066 case NETDEV_UP:
4067 qlcnic_config_ipaddr(adapter,
4068 ifa->ifa_address, QLCNIC_IP_UP);
4069 break;
4070 case NETDEV_DOWN:
4071 qlcnic_config_ipaddr(adapter,
4072 ifa->ifa_address, QLCNIC_IP_DOWN);
4073 break;
4074 default:
4075 break;
4076 }
4077 }
4078
4079 in_dev_put(indev);
4080 }
4081
qlcnic_restore_indev_addr(struct net_device * netdev,unsigned long event)4082 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4083 {
4084 struct qlcnic_adapter *adapter = netdev_priv(netdev);
4085 struct net_device *dev;
4086 u16 vid;
4087
4088 qlcnic_config_indev_addr(adapter, netdev, event);
4089
4090 rcu_read_lock();
4091 for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4092 dev = __vlan_find_dev_deep_rcu(netdev, htons(ETH_P_8021Q), vid);
4093 if (!dev)
4094 continue;
4095 qlcnic_config_indev_addr(adapter, dev, event);
4096 }
4097 rcu_read_unlock();
4098 }
4099
qlcnic_netdev_event(struct notifier_block * this,unsigned long event,void * ptr)4100 static int qlcnic_netdev_event(struct notifier_block *this,
4101 unsigned long event, void *ptr)
4102 {
4103 struct qlcnic_adapter *adapter;
4104 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4105
4106 recheck:
4107 if (dev == NULL)
4108 goto done;
4109
4110 if (is_vlan_dev(dev)) {
4111 dev = vlan_dev_real_dev(dev);
4112 goto recheck;
4113 }
4114
4115 if (!is_qlcnic_netdev(dev))
4116 goto done;
4117
4118 adapter = netdev_priv(dev);
4119
4120 if (!adapter)
4121 goto done;
4122
4123 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4124 goto done;
4125
4126 qlcnic_config_indev_addr(adapter, dev, event);
4127 done:
4128 return NOTIFY_DONE;
4129 }
4130
4131 static int
qlcnic_inetaddr_event(struct notifier_block * this,unsigned long event,void * ptr)4132 qlcnic_inetaddr_event(struct notifier_block *this,
4133 unsigned long event, void *ptr)
4134 {
4135 struct qlcnic_adapter *adapter;
4136 struct net_device *dev;
4137
4138 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4139
4140 dev = ifa->ifa_dev->dev;
4141
4142 recheck:
4143 if (dev == NULL)
4144 goto done;
4145
4146 if (is_vlan_dev(dev)) {
4147 dev = vlan_dev_real_dev(dev);
4148 goto recheck;
4149 }
4150
4151 if (!is_qlcnic_netdev(dev))
4152 goto done;
4153
4154 adapter = netdev_priv(dev);
4155
4156 if (!adapter)
4157 goto done;
4158
4159 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4160 goto done;
4161
4162 switch (event) {
4163 case NETDEV_UP:
4164 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4165
4166 break;
4167 case NETDEV_DOWN:
4168 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4169
4170 break;
4171 default:
4172 break;
4173 }
4174
4175 done:
4176 return NOTIFY_DONE;
4177 }
4178
4179 static struct notifier_block qlcnic_netdev_cb = {
4180 .notifier_call = qlcnic_netdev_event,
4181 };
4182
4183 static struct notifier_block qlcnic_inetaddr_cb = {
4184 .notifier_call = qlcnic_inetaddr_event,
4185 };
4186 #else
qlcnic_restore_indev_addr(struct net_device * dev,unsigned long event)4187 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4188 { }
4189 #endif
4190 static const struct pci_error_handlers qlcnic_err_handler = {
4191 .error_detected = qlcnic_io_error_detected,
4192 .slot_reset = qlcnic_io_slot_reset,
4193 .resume = qlcnic_io_resume,
4194 };
4195
4196 static SIMPLE_DEV_PM_OPS(qlcnic_pm_ops, qlcnic_suspend, qlcnic_resume);
4197
4198 static struct pci_driver qlcnic_driver = {
4199 .name = qlcnic_driver_name,
4200 .id_table = qlcnic_pci_tbl,
4201 .probe = qlcnic_probe,
4202 .remove = qlcnic_remove,
4203 .driver.pm = &qlcnic_pm_ops,
4204 .shutdown = qlcnic_shutdown,
4205 .err_handler = &qlcnic_err_handler,
4206 #ifdef CONFIG_QLCNIC_SRIOV
4207 .sriov_configure = qlcnic_pci_sriov_configure,
4208 #endif
4209
4210 };
4211
qlcnic_init_module(void)4212 static int __init qlcnic_init_module(void)
4213 {
4214 int ret;
4215
4216 printk(KERN_INFO "%s\n", qlcnic_driver_string);
4217
4218 #ifdef CONFIG_INET
4219 register_netdevice_notifier(&qlcnic_netdev_cb);
4220 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4221 #endif
4222
4223 ret = pci_register_driver(&qlcnic_driver);
4224 if (ret) {
4225 #ifdef CONFIG_INET
4226 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4227 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4228 #endif
4229 }
4230
4231 return ret;
4232 }
4233
4234 module_init(qlcnic_init_module);
4235
qlcnic_exit_module(void)4236 static void __exit qlcnic_exit_module(void)
4237 {
4238 pci_unregister_driver(&qlcnic_driver);
4239
4240 #ifdef CONFIG_INET
4241 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4242 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4243 #endif
4244 }
4245
4246 module_exit(qlcnic_exit_module);
4247