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[mirror_ubuntu-bionic-kernel.git] / drivers / net / qlcnic / qlcnic_main.c
1 /*
2 * Copyright (C) 2009 - QLogic Corporation.
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
18 * MA 02111-1307, USA.
19 *
20 * The full GNU General Public License is included in this distribution
21 * in the file called "COPYING".
22 *
23 */
24
25 #include <linux/slab.h>
26 #include <linux/vmalloc.h>
27 #include <linux/interrupt.h>
28
29 #include "qlcnic.h"
30
31 #include <linux/dma-mapping.h>
32 #include <linux/if_vlan.h>
33 #include <net/ip.h>
34 #include <linux/ipv6.h>
35 #include <linux/inetdevice.h>
36 #include <linux/sysfs.h>
37
38 MODULE_DESCRIPTION("QLogic 10 GbE Converged Ethernet Driver");
39 MODULE_LICENSE("GPL");
40 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
41 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
42
43 char qlcnic_driver_name[] = "qlcnic";
44 static const char qlcnic_driver_string[] = "QLogic Converged Ethernet Driver v"
45 QLCNIC_LINUX_VERSIONID;
46
47 static int port_mode = QLCNIC_PORT_MODE_AUTO_NEG;
48
49 /* Default to restricted 1G auto-neg mode */
50 static int wol_port_mode = 5;
51
52 static int use_msi = 1;
53 module_param(use_msi, int, 0644);
54 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
55
56 static int use_msi_x = 1;
57 module_param(use_msi_x, int, 0644);
58 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
59
60 static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
61 module_param(auto_fw_reset, int, 0644);
62 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
63
64 static int __devinit qlcnic_probe(struct pci_dev *pdev,
65 const struct pci_device_id *ent);
66 static void __devexit qlcnic_remove(struct pci_dev *pdev);
67 static int qlcnic_open(struct net_device *netdev);
68 static int qlcnic_close(struct net_device *netdev);
69 static void qlcnic_tx_timeout(struct net_device *netdev);
70 static void qlcnic_tx_timeout_task(struct work_struct *work);
71 static void qlcnic_attach_work(struct work_struct *work);
72 static void qlcnic_fwinit_work(struct work_struct *work);
73 static void qlcnic_fw_poll_work(struct work_struct *work);
74 static void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
75 work_func_t func, int delay);
76 static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter);
77 static int qlcnic_poll(struct napi_struct *napi, int budget);
78 #ifdef CONFIG_NET_POLL_CONTROLLER
79 static void qlcnic_poll_controller(struct net_device *netdev);
80 #endif
81
82 static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter);
83 static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter);
84 static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter);
85 static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter);
86
87 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter);
88 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
89
90 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
91 static irqreturn_t qlcnic_intr(int irq, void *data);
92 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
93 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
94
95 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
96 static void qlcnic_config_indev_addr(struct net_device *dev, unsigned long);
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 #define PCI_DEVICE_ID_QLOGIC_QLE824X 0x8020
104
105 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
106 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
107 {0,}
108 };
109
110 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
111
112
113 void
114 qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
115 struct qlcnic_host_tx_ring *tx_ring)
116 {
117 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
118
119 if (qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH) {
120 netif_stop_queue(adapter->netdev);
121 smp_mb();
122 adapter->stats.xmit_off++;
123 }
124 }
125
126 static const u32 msi_tgt_status[8] = {
127 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
128 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
129 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
130 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
131 };
132
133 static const
134 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
135
136 static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring)
137 {
138 writel(0, sds_ring->crb_intr_mask);
139 }
140
141 static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
142 {
143 struct qlcnic_adapter *adapter = sds_ring->adapter;
144
145 writel(0x1, sds_ring->crb_intr_mask);
146
147 if (!QLCNIC_IS_MSI_FAMILY(adapter))
148 writel(0xfbff, adapter->tgt_mask_reg);
149 }
150
151 static int
152 qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
153 {
154 int size = sizeof(struct qlcnic_host_sds_ring) * count;
155
156 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
157
158 return (recv_ctx->sds_rings == NULL);
159 }
160
161 static void
162 qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
163 {
164 if (recv_ctx->sds_rings != NULL)
165 kfree(recv_ctx->sds_rings);
166
167 recv_ctx->sds_rings = NULL;
168 }
169
170 static int
171 qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev)
172 {
173 int ring;
174 struct qlcnic_host_sds_ring *sds_ring;
175 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
176
177 if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
178 return -ENOMEM;
179
180 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
181 sds_ring = &recv_ctx->sds_rings[ring];
182 netif_napi_add(netdev, &sds_ring->napi,
183 qlcnic_poll, QLCNIC_NETDEV_WEIGHT);
184 }
185
186 return 0;
187 }
188
189 static void
190 qlcnic_napi_del(struct qlcnic_adapter *adapter)
191 {
192 int ring;
193 struct qlcnic_host_sds_ring *sds_ring;
194 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
195
196 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
197 sds_ring = &recv_ctx->sds_rings[ring];
198 netif_napi_del(&sds_ring->napi);
199 }
200
201 qlcnic_free_sds_rings(&adapter->recv_ctx);
202 }
203
204 static void
205 qlcnic_napi_enable(struct qlcnic_adapter *adapter)
206 {
207 int ring;
208 struct qlcnic_host_sds_ring *sds_ring;
209 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
210
211 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
212 sds_ring = &recv_ctx->sds_rings[ring];
213 napi_enable(&sds_ring->napi);
214 qlcnic_enable_int(sds_ring);
215 }
216 }
217
218 static void
219 qlcnic_napi_disable(struct qlcnic_adapter *adapter)
220 {
221 int ring;
222 struct qlcnic_host_sds_ring *sds_ring;
223 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
224
225 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
226 sds_ring = &recv_ctx->sds_rings[ring];
227 qlcnic_disable_int(sds_ring);
228 napi_synchronize(&sds_ring->napi);
229 napi_disable(&sds_ring->napi);
230 }
231 }
232
233 static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
234 {
235 memset(&adapter->stats, 0, sizeof(adapter->stats));
236 return;
237 }
238
239 static int qlcnic_set_dma_mask(struct qlcnic_adapter *adapter)
240 {
241 struct pci_dev *pdev = adapter->pdev;
242 u64 mask, cmask;
243
244 adapter->pci_using_dac = 0;
245
246 mask = DMA_BIT_MASK(39);
247 cmask = mask;
248
249 if (pci_set_dma_mask(pdev, mask) == 0 &&
250 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
251 adapter->pci_using_dac = 1;
252 return 0;
253 }
254
255 return -EIO;
256 }
257
258 /* Update addressable range if firmware supports it */
259 static int
260 qlcnic_update_dma_mask(struct qlcnic_adapter *adapter)
261 {
262 int change, shift, err;
263 u64 mask, old_mask, old_cmask;
264 struct pci_dev *pdev = adapter->pdev;
265
266 change = 0;
267
268 shift = QLCRD32(adapter, CRB_DMA_SHIFT);
269 if (shift > 32)
270 return 0;
271
272 if (shift > 9)
273 change = 1;
274
275 if (change) {
276 old_mask = pdev->dma_mask;
277 old_cmask = pdev->dev.coherent_dma_mask;
278
279 mask = DMA_BIT_MASK(32+shift);
280
281 err = pci_set_dma_mask(pdev, mask);
282 if (err)
283 goto err_out;
284
285 err = pci_set_consistent_dma_mask(pdev, mask);
286 if (err)
287 goto err_out;
288 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
289 }
290
291 return 0;
292
293 err_out:
294 pci_set_dma_mask(pdev, old_mask);
295 pci_set_consistent_dma_mask(pdev, old_cmask);
296 return err;
297 }
298
299 static void qlcnic_set_port_mode(struct qlcnic_adapter *adapter)
300 {
301 u32 val, data;
302
303 val = adapter->ahw.board_type;
304 if ((val == QLCNIC_BRDTYPE_P3_HMEZ) ||
305 (val == QLCNIC_BRDTYPE_P3_XG_LOM)) {
306 if (port_mode == QLCNIC_PORT_MODE_802_3_AP) {
307 data = QLCNIC_PORT_MODE_802_3_AP;
308 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
309 } else if (port_mode == QLCNIC_PORT_MODE_XG) {
310 data = QLCNIC_PORT_MODE_XG;
311 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
312 } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_1G) {
313 data = QLCNIC_PORT_MODE_AUTO_NEG_1G;
314 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
315 } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_XG) {
316 data = QLCNIC_PORT_MODE_AUTO_NEG_XG;
317 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
318 } else {
319 data = QLCNIC_PORT_MODE_AUTO_NEG;
320 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
321 }
322
323 if ((wol_port_mode != QLCNIC_PORT_MODE_802_3_AP) &&
324 (wol_port_mode != QLCNIC_PORT_MODE_XG) &&
325 (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_1G) &&
326 (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_XG)) {
327 wol_port_mode = QLCNIC_PORT_MODE_AUTO_NEG;
328 }
329 QLCWR32(adapter, QLCNIC_WOL_PORT_MODE, wol_port_mode);
330 }
331 }
332
333 static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
334 {
335 u32 control;
336 int pos;
337
338 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
339 if (pos) {
340 pci_read_config_dword(pdev, pos, &control);
341 if (enable)
342 control |= PCI_MSIX_FLAGS_ENABLE;
343 else
344 control = 0;
345 pci_write_config_dword(pdev, pos, control);
346 }
347 }
348
349 static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
350 {
351 int i;
352
353 for (i = 0; i < count; i++)
354 adapter->msix_entries[i].entry = i;
355 }
356
357 static int
358 qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
359 {
360 int i;
361 unsigned char *p;
362 u64 mac_addr;
363 struct net_device *netdev = adapter->netdev;
364 struct pci_dev *pdev = adapter->pdev;
365
366 if (qlcnic_get_mac_addr(adapter, &mac_addr) != 0)
367 return -EIO;
368
369 p = (unsigned char *)&mac_addr;
370 for (i = 0; i < 6; i++)
371 netdev->dev_addr[i] = *(p + 5 - i);
372
373 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
374 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
375
376 /* set station address */
377
378 if (!is_valid_ether_addr(netdev->perm_addr))
379 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
380 netdev->dev_addr);
381
382 return 0;
383 }
384
385 static int qlcnic_set_mac(struct net_device *netdev, void *p)
386 {
387 struct qlcnic_adapter *adapter = netdev_priv(netdev);
388 struct sockaddr *addr = p;
389
390 if (!is_valid_ether_addr(addr->sa_data))
391 return -EINVAL;
392
393 if (netif_running(netdev)) {
394 netif_device_detach(netdev);
395 qlcnic_napi_disable(adapter);
396 }
397
398 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
399 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
400 qlcnic_set_multi(adapter->netdev);
401
402 if (netif_running(netdev)) {
403 netif_device_attach(netdev);
404 qlcnic_napi_enable(adapter);
405 }
406 return 0;
407 }
408
409 static const struct net_device_ops qlcnic_netdev_ops = {
410 .ndo_open = qlcnic_open,
411 .ndo_stop = qlcnic_close,
412 .ndo_start_xmit = qlcnic_xmit_frame,
413 .ndo_get_stats = qlcnic_get_stats,
414 .ndo_validate_addr = eth_validate_addr,
415 .ndo_set_multicast_list = qlcnic_set_multi,
416 .ndo_set_mac_address = qlcnic_set_mac,
417 .ndo_change_mtu = qlcnic_change_mtu,
418 .ndo_tx_timeout = qlcnic_tx_timeout,
419 #ifdef CONFIG_NET_POLL_CONTROLLER
420 .ndo_poll_controller = qlcnic_poll_controller,
421 #endif
422 };
423
424 static void
425 qlcnic_setup_intr(struct qlcnic_adapter *adapter)
426 {
427 const struct qlcnic_legacy_intr_set *legacy_intrp;
428 struct pci_dev *pdev = adapter->pdev;
429 int err, num_msix;
430
431 if (adapter->rss_supported) {
432 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
433 MSIX_ENTRIES_PER_ADAPTER : 2;
434 } else
435 num_msix = 1;
436
437 adapter->max_sds_rings = 1;
438
439 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
440
441 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
442
443 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
444 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
445 legacy_intrp->tgt_status_reg);
446 adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
447 legacy_intrp->tgt_mask_reg);
448 adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
449
450 adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
451 ISR_INT_STATE_REG);
452
453 qlcnic_set_msix_bit(pdev, 0);
454
455 if (adapter->msix_supported) {
456
457 qlcnic_init_msix_entries(adapter, num_msix);
458 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
459 if (err == 0) {
460 adapter->flags |= QLCNIC_MSIX_ENABLED;
461 qlcnic_set_msix_bit(pdev, 1);
462
463 if (adapter->rss_supported)
464 adapter->max_sds_rings = num_msix;
465
466 dev_info(&pdev->dev, "using msi-x interrupts\n");
467 return;
468 }
469
470 if (err > 0)
471 pci_disable_msix(pdev);
472
473 /* fall through for msi */
474 }
475
476 if (use_msi && !pci_enable_msi(pdev)) {
477 adapter->flags |= QLCNIC_MSI_ENABLED;
478 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
479 msi_tgt_status[adapter->ahw.pci_func]);
480 dev_info(&pdev->dev, "using msi interrupts\n");
481 adapter->msix_entries[0].vector = pdev->irq;
482 return;
483 }
484
485 dev_info(&pdev->dev, "using legacy interrupts\n");
486 adapter->msix_entries[0].vector = pdev->irq;
487 }
488
489 static void
490 qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
491 {
492 if (adapter->flags & QLCNIC_MSIX_ENABLED)
493 pci_disable_msix(adapter->pdev);
494 if (adapter->flags & QLCNIC_MSI_ENABLED)
495 pci_disable_msi(adapter->pdev);
496 }
497
498 static void
499 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
500 {
501 if (adapter->ahw.pci_base0 != NULL)
502 iounmap(adapter->ahw.pci_base0);
503 }
504
505 static int
506 qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
507 {
508 void __iomem *mem_ptr0 = NULL;
509 resource_size_t mem_base;
510 unsigned long mem_len, pci_len0 = 0;
511
512 struct pci_dev *pdev = adapter->pdev;
513 int pci_func = adapter->ahw.pci_func;
514
515 /*
516 * Set the CRB window to invalid. If any register in window 0 is
517 * accessed it should set the window to 0 and then reset it to 1.
518 */
519 adapter->ahw.crb_win = -1;
520 adapter->ahw.ocm_win = -1;
521
522 /* remap phys address */
523 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
524 mem_len = pci_resource_len(pdev, 0);
525
526 if (mem_len == QLCNIC_PCI_2MB_SIZE) {
527
528 mem_ptr0 = pci_ioremap_bar(pdev, 0);
529 if (mem_ptr0 == NULL) {
530 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
531 return -EIO;
532 }
533 pci_len0 = mem_len;
534 } else {
535 return -EIO;
536 }
537
538 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
539
540 adapter->ahw.pci_base0 = mem_ptr0;
541 adapter->ahw.pci_len0 = pci_len0;
542
543 adapter->ahw.ocm_win_crb = qlcnic_get_ioaddr(adapter,
544 QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
545
546 return 0;
547 }
548
549 static void get_brd_name(struct qlcnic_adapter *adapter, char *name)
550 {
551 struct pci_dev *pdev = adapter->pdev;
552 int i, found = 0;
553
554 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
555 if (qlcnic_boards[i].vendor == pdev->vendor &&
556 qlcnic_boards[i].device == pdev->device &&
557 qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
558 qlcnic_boards[i].sub_device == pdev->subsystem_device) {
559 strcpy(name, qlcnic_boards[i].short_name);
560 found = 1;
561 break;
562 }
563
564 }
565
566 if (!found)
567 name = "Unknown";
568 }
569
570 static void
571 qlcnic_check_options(struct qlcnic_adapter *adapter)
572 {
573 u32 fw_major, fw_minor, fw_build;
574 char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
575 char serial_num[32];
576 int i, offset, val;
577 int *ptr32;
578 struct pci_dev *pdev = adapter->pdev;
579
580 adapter->driver_mismatch = 0;
581
582 ptr32 = (int *)&serial_num;
583 offset = QLCNIC_FW_SERIAL_NUM_OFFSET;
584 for (i = 0; i < 8; i++) {
585 if (qlcnic_rom_fast_read(adapter, offset, &val) == -1) {
586 dev_err(&pdev->dev, "error reading board info\n");
587 adapter->driver_mismatch = 1;
588 return;
589 }
590 ptr32[i] = cpu_to_le32(val);
591 offset += sizeof(u32);
592 }
593
594 fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
595 fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
596 fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
597
598 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
599
600 if (adapter->portnum == 0) {
601 get_brd_name(adapter, brd_name);
602
603 pr_info("%s: %s Board Chip rev 0x%x\n",
604 module_name(THIS_MODULE),
605 brd_name, adapter->ahw.revision_id);
606 }
607
608 if (adapter->fw_version < QLCNIC_VERSION_CODE(3, 4, 216)) {
609 adapter->driver_mismatch = 1;
610 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
611 fw_major, fw_minor, fw_build);
612 return;
613 }
614
615 i = QLCRD32(adapter, QLCNIC_SRE_MISC);
616 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
617
618 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
619 fw_major, fw_minor, fw_build,
620 adapter->ahw.cut_through ? "cut-through" : "legacy");
621
622 if (adapter->fw_version >= QLCNIC_VERSION_CODE(4, 0, 222))
623 adapter->capabilities = QLCRD32(adapter, CRB_FW_CAPABILITIES_1);
624
625 adapter->flags &= ~QLCNIC_LRO_ENABLED;
626
627 if (adapter->ahw.port_type == QLCNIC_XGBE) {
628 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
629 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
630 } else if (adapter->ahw.port_type == QLCNIC_GBE) {
631 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
632 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
633 }
634
635 adapter->msix_supported = !!use_msi_x;
636 adapter->rss_supported = !!use_msi_x;
637
638 adapter->num_txd = MAX_CMD_DESCRIPTORS;
639
640 adapter->num_lro_rxd = 0;
641 adapter->max_rds_rings = 2;
642 }
643
644 static int
645 qlcnic_start_firmware(struct qlcnic_adapter *adapter)
646 {
647 int val, err, first_boot;
648
649 err = qlcnic_set_dma_mask(adapter);
650 if (err)
651 return err;
652
653 if (!qlcnic_can_start_firmware(adapter))
654 goto wait_init;
655
656 first_boot = QLCRD32(adapter, QLCNIC_CAM_RAM(0x1fc));
657 if (first_boot == 0x55555555)
658 /* This is the first boot after power up */
659 QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
660
661 qlcnic_request_firmware(adapter);
662
663 err = qlcnic_need_fw_reset(adapter);
664 if (err < 0)
665 goto err_out;
666 if (err == 0)
667 goto wait_init;
668
669 if (first_boot != 0x55555555) {
670 QLCWR32(adapter, CRB_CMDPEG_STATE, 0);
671 qlcnic_pinit_from_rom(adapter);
672 msleep(1);
673 }
674
675 QLCWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
676 QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0);
677 QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0);
678
679 qlcnic_set_port_mode(adapter);
680
681 err = qlcnic_load_firmware(adapter);
682 if (err)
683 goto err_out;
684
685 qlcnic_release_firmware(adapter);
686
687 val = (_QLCNIC_LINUX_MAJOR << 16)
688 | ((_QLCNIC_LINUX_MINOR << 8))
689 | (_QLCNIC_LINUX_SUBVERSION);
690 QLCWR32(adapter, CRB_DRIVER_VERSION, val);
691
692 wait_init:
693 /* Handshake with the card before we register the devices. */
694 err = qlcnic_phantom_init(adapter);
695 if (err)
696 goto err_out;
697
698 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
699
700 qlcnic_update_dma_mask(adapter);
701
702 qlcnic_check_options(adapter);
703
704 adapter->need_fw_reset = 0;
705
706 /* fall through and release firmware */
707
708 err_out:
709 qlcnic_release_firmware(adapter);
710 return err;
711 }
712
713 static int
714 qlcnic_request_irq(struct qlcnic_adapter *adapter)
715 {
716 irq_handler_t handler;
717 struct qlcnic_host_sds_ring *sds_ring;
718 int err, ring;
719
720 unsigned long flags = 0;
721 struct net_device *netdev = adapter->netdev;
722 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
723
724 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
725 handler = qlcnic_tmp_intr;
726 if (!QLCNIC_IS_MSI_FAMILY(adapter))
727 flags |= IRQF_SHARED;
728
729 } else {
730 if (adapter->flags & QLCNIC_MSIX_ENABLED)
731 handler = qlcnic_msix_intr;
732 else if (adapter->flags & QLCNIC_MSI_ENABLED)
733 handler = qlcnic_msi_intr;
734 else {
735 flags |= IRQF_SHARED;
736 handler = qlcnic_intr;
737 }
738 }
739 adapter->irq = netdev->irq;
740
741 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
742 sds_ring = &recv_ctx->sds_rings[ring];
743 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
744 err = request_irq(sds_ring->irq, handler,
745 flags, sds_ring->name, sds_ring);
746 if (err)
747 return err;
748 }
749
750 return 0;
751 }
752
753 static void
754 qlcnic_free_irq(struct qlcnic_adapter *adapter)
755 {
756 int ring;
757 struct qlcnic_host_sds_ring *sds_ring;
758
759 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
760
761 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
762 sds_ring = &recv_ctx->sds_rings[ring];
763 free_irq(sds_ring->irq, sds_ring);
764 }
765 }
766
767 static void
768 qlcnic_init_coalesce_defaults(struct qlcnic_adapter *adapter)
769 {
770 adapter->coal.flags = QLCNIC_INTR_DEFAULT;
771 adapter->coal.normal.data.rx_time_us =
772 QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
773 adapter->coal.normal.data.rx_packets =
774 QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
775 adapter->coal.normal.data.tx_time_us =
776 QLCNIC_DEFAULT_INTR_COALESCE_TX_TIME_US;
777 adapter->coal.normal.data.tx_packets =
778 QLCNIC_DEFAULT_INTR_COALESCE_TX_PACKETS;
779 }
780
781 static int
782 __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
783 {
784 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
785 return -EIO;
786
787 qlcnic_set_multi(netdev);
788 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
789
790 adapter->ahw.linkup = 0;
791
792 if (adapter->max_sds_rings > 1)
793 qlcnic_config_rss(adapter, 1);
794
795 qlcnic_config_intr_coalesce(adapter);
796
797 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
798 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
799
800 qlcnic_napi_enable(adapter);
801
802 qlcnic_linkevent_request(adapter, 1);
803
804 set_bit(__QLCNIC_DEV_UP, &adapter->state);
805 return 0;
806 }
807
808 /* Usage: During resume and firmware recovery module.*/
809
810 static int
811 qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
812 {
813 int err = 0;
814
815 rtnl_lock();
816 if (netif_running(netdev))
817 err = __qlcnic_up(adapter, netdev);
818 rtnl_unlock();
819
820 return err;
821 }
822
823 static void
824 __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
825 {
826 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
827 return;
828
829 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
830 return;
831
832 smp_mb();
833 spin_lock(&adapter->tx_clean_lock);
834 netif_carrier_off(netdev);
835 netif_tx_disable(netdev);
836
837 qlcnic_free_mac_list(adapter);
838
839 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
840
841 qlcnic_napi_disable(adapter);
842
843 qlcnic_release_tx_buffers(adapter);
844 spin_unlock(&adapter->tx_clean_lock);
845 }
846
847 /* Usage: During suspend and firmware recovery module */
848
849 static void
850 qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
851 {
852 rtnl_lock();
853 if (netif_running(netdev))
854 __qlcnic_down(adapter, netdev);
855 rtnl_unlock();
856
857 }
858
859 static int
860 qlcnic_attach(struct qlcnic_adapter *adapter)
861 {
862 struct net_device *netdev = adapter->netdev;
863 struct pci_dev *pdev = adapter->pdev;
864 int err, ring;
865 struct qlcnic_host_rds_ring *rds_ring;
866
867 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
868 return 0;
869
870 err = qlcnic_init_firmware(adapter);
871 if (err)
872 return err;
873
874 err = qlcnic_napi_add(adapter, netdev);
875 if (err)
876 return err;
877
878 err = qlcnic_alloc_sw_resources(adapter);
879 if (err) {
880 dev_err(&pdev->dev, "Error in setting sw resources\n");
881 return err;
882 }
883
884 err = qlcnic_alloc_hw_resources(adapter);
885 if (err) {
886 dev_err(&pdev->dev, "Error in setting hw resources\n");
887 goto err_out_free_sw;
888 }
889
890
891 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
892 rds_ring = &adapter->recv_ctx.rds_rings[ring];
893 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
894 }
895
896 err = qlcnic_request_irq(adapter);
897 if (err) {
898 dev_err(&pdev->dev, "failed to setup interrupt\n");
899 goto err_out_free_rxbuf;
900 }
901
902 qlcnic_init_coalesce_defaults(adapter);
903
904 qlcnic_create_sysfs_entries(adapter);
905
906 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
907 return 0;
908
909 err_out_free_rxbuf:
910 qlcnic_release_rx_buffers(adapter);
911 qlcnic_free_hw_resources(adapter);
912 err_out_free_sw:
913 qlcnic_free_sw_resources(adapter);
914 return err;
915 }
916
917 static void
918 qlcnic_detach(struct qlcnic_adapter *adapter)
919 {
920 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
921 return;
922
923 qlcnic_remove_sysfs_entries(adapter);
924
925 qlcnic_free_hw_resources(adapter);
926 qlcnic_release_rx_buffers(adapter);
927 qlcnic_free_irq(adapter);
928 qlcnic_napi_del(adapter);
929 qlcnic_free_sw_resources(adapter);
930
931 adapter->is_up = 0;
932 }
933
934 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
935 {
936 struct qlcnic_adapter *adapter = netdev_priv(netdev);
937 struct qlcnic_host_sds_ring *sds_ring;
938 int ring;
939
940 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
941 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
942 sds_ring = &adapter->recv_ctx.sds_rings[ring];
943 qlcnic_disable_int(sds_ring);
944 }
945 }
946
947 qlcnic_detach(adapter);
948
949 adapter->diag_test = 0;
950 adapter->max_sds_rings = max_sds_rings;
951
952 if (qlcnic_attach(adapter))
953 return;
954
955 if (netif_running(netdev))
956 __qlcnic_up(adapter, netdev);
957
958 netif_device_attach(netdev);
959 }
960
961 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
962 {
963 struct qlcnic_adapter *adapter = netdev_priv(netdev);
964 struct qlcnic_host_sds_ring *sds_ring;
965 int ring;
966 int ret;
967
968 netif_device_detach(netdev);
969
970 if (netif_running(netdev))
971 __qlcnic_down(adapter, netdev);
972
973 qlcnic_detach(adapter);
974
975 adapter->max_sds_rings = 1;
976 adapter->diag_test = test;
977
978 ret = qlcnic_attach(adapter);
979 if (ret)
980 return ret;
981
982 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
983 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
984 sds_ring = &adapter->recv_ctx.sds_rings[ring];
985 qlcnic_enable_int(sds_ring);
986 }
987 }
988
989 return 0;
990 }
991
992 int
993 qlcnic_reset_context(struct qlcnic_adapter *adapter)
994 {
995 int err = 0;
996 struct net_device *netdev = adapter->netdev;
997
998 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
999 return -EBUSY;
1000
1001 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1002
1003 netif_device_detach(netdev);
1004
1005 if (netif_running(netdev))
1006 __qlcnic_down(adapter, netdev);
1007
1008 qlcnic_detach(adapter);
1009
1010 if (netif_running(netdev)) {
1011 err = qlcnic_attach(adapter);
1012 if (!err)
1013 err = __qlcnic_up(adapter, netdev);
1014
1015 if (err)
1016 goto done;
1017 }
1018
1019 netif_device_attach(netdev);
1020 }
1021
1022 done:
1023 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1024 return err;
1025 }
1026
1027 static int
1028 qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
1029 struct net_device *netdev)
1030 {
1031 int err;
1032 struct pci_dev *pdev = adapter->pdev;
1033
1034 adapter->rx_csum = 1;
1035 adapter->mc_enabled = 0;
1036 adapter->max_mc_count = 38;
1037
1038 netdev->netdev_ops = &qlcnic_netdev_ops;
1039 netdev->watchdog_timeo = 2*HZ;
1040
1041 qlcnic_change_mtu(netdev, netdev->mtu);
1042
1043 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1044
1045 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1046 netdev->features |= (NETIF_F_GRO);
1047 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1048
1049 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1050 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1051
1052 if (adapter->pci_using_dac) {
1053 netdev->features |= NETIF_F_HIGHDMA;
1054 netdev->vlan_features |= NETIF_F_HIGHDMA;
1055 }
1056
1057 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
1058 netdev->features |= (NETIF_F_HW_VLAN_TX);
1059
1060 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1061 netdev->features |= NETIF_F_LRO;
1062
1063 netdev->irq = adapter->msix_entries[0].vector;
1064
1065 INIT_WORK(&adapter->tx_timeout_task, qlcnic_tx_timeout_task);
1066
1067 if (qlcnic_read_mac_addr(adapter))
1068 dev_warn(&pdev->dev, "failed to read mac addr\n");
1069
1070 netif_carrier_off(netdev);
1071 netif_stop_queue(netdev);
1072
1073 err = register_netdev(netdev);
1074 if (err) {
1075 dev_err(&pdev->dev, "failed to register net device\n");
1076 return err;
1077 }
1078
1079 return 0;
1080 }
1081
1082 static int __devinit
1083 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1084 {
1085 struct net_device *netdev = NULL;
1086 struct qlcnic_adapter *adapter = NULL;
1087 int err;
1088 int pci_func_id = PCI_FUNC(pdev->devfn);
1089 uint8_t revision_id;
1090
1091 err = pci_enable_device(pdev);
1092 if (err)
1093 return err;
1094
1095 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1096 err = -ENODEV;
1097 goto err_out_disable_pdev;
1098 }
1099
1100 err = pci_request_regions(pdev, qlcnic_driver_name);
1101 if (err)
1102 goto err_out_disable_pdev;
1103
1104 pci_set_master(pdev);
1105
1106 netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1107 if (!netdev) {
1108 dev_err(&pdev->dev, "failed to allocate net_device\n");
1109 err = -ENOMEM;
1110 goto err_out_free_res;
1111 }
1112
1113 SET_NETDEV_DEV(netdev, &pdev->dev);
1114
1115 adapter = netdev_priv(netdev);
1116 adapter->netdev = netdev;
1117 adapter->pdev = pdev;
1118 adapter->ahw.pci_func = pci_func_id;
1119
1120 revision_id = pdev->revision;
1121 adapter->ahw.revision_id = revision_id;
1122
1123 rwlock_init(&adapter->ahw.crb_lock);
1124 mutex_init(&adapter->ahw.mem_lock);
1125
1126 spin_lock_init(&adapter->tx_clean_lock);
1127 INIT_LIST_HEAD(&adapter->mac_list);
1128
1129 err = qlcnic_setup_pci_map(adapter);
1130 if (err)
1131 goto err_out_free_netdev;
1132
1133 /* This will be reset for mezz cards */
1134 adapter->portnum = pci_func_id;
1135
1136 err = qlcnic_get_board_info(adapter);
1137 if (err) {
1138 dev_err(&pdev->dev, "Error getting board config info.\n");
1139 goto err_out_iounmap;
1140 }
1141
1142
1143 err = qlcnic_start_firmware(adapter);
1144 if (err)
1145 goto err_out_decr_ref;
1146
1147 /*
1148 * See if the firmware gave us a virtual-physical port mapping.
1149 */
1150 adapter->physical_port = adapter->portnum;
1151
1152 qlcnic_clear_stats(adapter);
1153
1154 qlcnic_setup_intr(adapter);
1155
1156 err = qlcnic_setup_netdev(adapter, netdev);
1157 if (err)
1158 goto err_out_disable_msi;
1159
1160 pci_set_drvdata(pdev, adapter);
1161
1162 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1163
1164 switch (adapter->ahw.port_type) {
1165 case QLCNIC_GBE:
1166 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1167 adapter->netdev->name);
1168 break;
1169 case QLCNIC_XGBE:
1170 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1171 adapter->netdev->name);
1172 break;
1173 }
1174
1175 qlcnic_create_diag_entries(adapter);
1176
1177 return 0;
1178
1179 err_out_disable_msi:
1180 qlcnic_teardown_intr(adapter);
1181
1182 err_out_decr_ref:
1183 qlcnic_clr_all_drv_state(adapter);
1184
1185 err_out_iounmap:
1186 qlcnic_cleanup_pci_map(adapter);
1187
1188 err_out_free_netdev:
1189 free_netdev(netdev);
1190
1191 err_out_free_res:
1192 pci_release_regions(pdev);
1193
1194 err_out_disable_pdev:
1195 pci_set_drvdata(pdev, NULL);
1196 pci_disable_device(pdev);
1197 return err;
1198 }
1199
1200 static void __devexit qlcnic_remove(struct pci_dev *pdev)
1201 {
1202 struct qlcnic_adapter *adapter;
1203 struct net_device *netdev;
1204
1205 adapter = pci_get_drvdata(pdev);
1206 if (adapter == NULL)
1207 return;
1208
1209 netdev = adapter->netdev;
1210
1211 qlcnic_cancel_fw_work(adapter);
1212
1213 unregister_netdev(netdev);
1214
1215 cancel_work_sync(&adapter->tx_timeout_task);
1216
1217 qlcnic_detach(adapter);
1218
1219 qlcnic_clr_all_drv_state(adapter);
1220
1221 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1222
1223 qlcnic_teardown_intr(adapter);
1224
1225 qlcnic_remove_diag_entries(adapter);
1226
1227 qlcnic_cleanup_pci_map(adapter);
1228
1229 qlcnic_release_firmware(adapter);
1230
1231 pci_release_regions(pdev);
1232 pci_disable_device(pdev);
1233 pci_set_drvdata(pdev, NULL);
1234
1235 free_netdev(netdev);
1236 }
1237 static int __qlcnic_shutdown(struct pci_dev *pdev)
1238 {
1239 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1240 struct net_device *netdev = adapter->netdev;
1241 int retval;
1242
1243 netif_device_detach(netdev);
1244
1245 qlcnic_cancel_fw_work(adapter);
1246
1247 if (netif_running(netdev))
1248 qlcnic_down(adapter, netdev);
1249
1250 cancel_work_sync(&adapter->tx_timeout_task);
1251
1252 qlcnic_detach(adapter);
1253
1254 qlcnic_clr_all_drv_state(adapter);
1255
1256 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1257
1258 retval = pci_save_state(pdev);
1259 if (retval)
1260 return retval;
1261
1262 if (qlcnic_wol_supported(adapter)) {
1263 pci_enable_wake(pdev, PCI_D3cold, 1);
1264 pci_enable_wake(pdev, PCI_D3hot, 1);
1265 }
1266
1267 return 0;
1268 }
1269
1270 static void qlcnic_shutdown(struct pci_dev *pdev)
1271 {
1272 if (__qlcnic_shutdown(pdev))
1273 return;
1274
1275 pci_disable_device(pdev);
1276 }
1277
1278 #ifdef CONFIG_PM
1279 static int
1280 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1281 {
1282 int retval;
1283
1284 retval = __qlcnic_shutdown(pdev);
1285 if (retval)
1286 return retval;
1287
1288 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1289 return 0;
1290 }
1291
1292 static int
1293 qlcnic_resume(struct pci_dev *pdev)
1294 {
1295 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1296 struct net_device *netdev = adapter->netdev;
1297 int err;
1298
1299 err = pci_enable_device(pdev);
1300 if (err)
1301 return err;
1302
1303 pci_set_power_state(pdev, PCI_D0);
1304 pci_set_master(pdev);
1305 pci_restore_state(pdev);
1306
1307 adapter->ahw.crb_win = -1;
1308 adapter->ahw.ocm_win = -1;
1309
1310 err = qlcnic_start_firmware(adapter);
1311 if (err) {
1312 dev_err(&pdev->dev, "failed to start firmware\n");
1313 return err;
1314 }
1315
1316 if (netif_running(netdev)) {
1317 err = qlcnic_attach(adapter);
1318 if (err)
1319 goto err_out;
1320
1321 err = qlcnic_up(adapter, netdev);
1322 if (err)
1323 goto err_out_detach;
1324
1325
1326 qlcnic_config_indev_addr(netdev, NETDEV_UP);
1327 }
1328
1329 netif_device_attach(netdev);
1330 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1331 return 0;
1332
1333 err_out_detach:
1334 qlcnic_detach(adapter);
1335 err_out:
1336 qlcnic_clr_all_drv_state(adapter);
1337 return err;
1338 }
1339 #endif
1340
1341 static int qlcnic_open(struct net_device *netdev)
1342 {
1343 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1344 int err;
1345
1346 if (adapter->driver_mismatch)
1347 return -EIO;
1348
1349 err = qlcnic_attach(adapter);
1350 if (err)
1351 return err;
1352
1353 err = __qlcnic_up(adapter, netdev);
1354 if (err)
1355 goto err_out;
1356
1357 netif_start_queue(netdev);
1358
1359 return 0;
1360
1361 err_out:
1362 qlcnic_detach(adapter);
1363 return err;
1364 }
1365
1366 /*
1367 * qlcnic_close - Disables a network interface entry point
1368 */
1369 static int qlcnic_close(struct net_device *netdev)
1370 {
1371 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1372
1373 __qlcnic_down(adapter, netdev);
1374 return 0;
1375 }
1376
1377 static void
1378 qlcnic_tso_check(struct net_device *netdev,
1379 struct qlcnic_host_tx_ring *tx_ring,
1380 struct cmd_desc_type0 *first_desc,
1381 struct sk_buff *skb)
1382 {
1383 u8 opcode = TX_ETHER_PKT;
1384 __be16 protocol = skb->protocol;
1385 u16 flags = 0, vid = 0;
1386 u32 producer;
1387 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1388 struct cmd_desc_type0 *hwdesc;
1389 struct vlan_ethhdr *vh;
1390 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1391
1392 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1393
1394 vh = (struct vlan_ethhdr *)skb->data;
1395 protocol = vh->h_vlan_encapsulated_proto;
1396 flags = FLAGS_VLAN_TAGGED;
1397
1398 } else if (vlan_tx_tag_present(skb)) {
1399
1400 flags = FLAGS_VLAN_OOB;
1401 vid = vlan_tx_tag_get(skb);
1402 qlcnic_set_tx_vlan_tci(first_desc, vid);
1403 vlan_oob = 1;
1404 }
1405
1406 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1407 skb_shinfo(skb)->gso_size > 0) {
1408
1409 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1410
1411 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1412 first_desc->total_hdr_length = hdr_len;
1413 if (vlan_oob) {
1414 first_desc->total_hdr_length += VLAN_HLEN;
1415 first_desc->tcp_hdr_offset = VLAN_HLEN;
1416 first_desc->ip_hdr_offset = VLAN_HLEN;
1417 /* Only in case of TSO on vlan device */
1418 flags |= FLAGS_VLAN_TAGGED;
1419 }
1420
1421 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1422 TX_TCP_LSO6 : TX_TCP_LSO;
1423 tso = 1;
1424
1425 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1426 u8 l4proto;
1427
1428 if (protocol == cpu_to_be16(ETH_P_IP)) {
1429 l4proto = ip_hdr(skb)->protocol;
1430
1431 if (l4proto == IPPROTO_TCP)
1432 opcode = TX_TCP_PKT;
1433 else if (l4proto == IPPROTO_UDP)
1434 opcode = TX_UDP_PKT;
1435 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1436 l4proto = ipv6_hdr(skb)->nexthdr;
1437
1438 if (l4proto == IPPROTO_TCP)
1439 opcode = TX_TCPV6_PKT;
1440 else if (l4proto == IPPROTO_UDP)
1441 opcode = TX_UDPV6_PKT;
1442 }
1443 }
1444
1445 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1446 first_desc->ip_hdr_offset += skb_network_offset(skb);
1447 qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
1448
1449 if (!tso)
1450 return;
1451
1452 /* For LSO, we need to copy the MAC/IP/TCP headers into
1453 * the descriptor ring
1454 */
1455 producer = tx_ring->producer;
1456 copied = 0;
1457 offset = 2;
1458
1459 if (vlan_oob) {
1460 /* Create a TSO vlan header template for firmware */
1461
1462 hwdesc = &tx_ring->desc_head[producer];
1463 tx_ring->cmd_buf_arr[producer].skb = NULL;
1464
1465 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1466 hdr_len + VLAN_HLEN);
1467
1468 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1469 skb_copy_from_linear_data(skb, vh, 12);
1470 vh->h_vlan_proto = htons(ETH_P_8021Q);
1471 vh->h_vlan_TCI = htons(vid);
1472 skb_copy_from_linear_data_offset(skb, 12,
1473 (char *)vh + 16, copy_len - 16);
1474
1475 copied = copy_len - VLAN_HLEN;
1476 offset = 0;
1477
1478 producer = get_next_index(producer, tx_ring->num_desc);
1479 }
1480
1481 while (copied < hdr_len) {
1482
1483 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1484 (hdr_len - copied));
1485
1486 hwdesc = &tx_ring->desc_head[producer];
1487 tx_ring->cmd_buf_arr[producer].skb = NULL;
1488
1489 skb_copy_from_linear_data_offset(skb, copied,
1490 (char *)hwdesc + offset, copy_len);
1491
1492 copied += copy_len;
1493 offset = 0;
1494
1495 producer = get_next_index(producer, tx_ring->num_desc);
1496 }
1497
1498 tx_ring->producer = producer;
1499 barrier();
1500 adapter->stats.lso_frames++;
1501 }
1502
1503 static int
1504 qlcnic_map_tx_skb(struct pci_dev *pdev,
1505 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
1506 {
1507 struct qlcnic_skb_frag *nf;
1508 struct skb_frag_struct *frag;
1509 int i, nr_frags;
1510 dma_addr_t map;
1511
1512 nr_frags = skb_shinfo(skb)->nr_frags;
1513 nf = &pbuf->frag_array[0];
1514
1515 map = pci_map_single(pdev, skb->data,
1516 skb_headlen(skb), PCI_DMA_TODEVICE);
1517 if (pci_dma_mapping_error(pdev, map))
1518 goto out_err;
1519
1520 nf->dma = map;
1521 nf->length = skb_headlen(skb);
1522
1523 for (i = 0; i < nr_frags; i++) {
1524 frag = &skb_shinfo(skb)->frags[i];
1525 nf = &pbuf->frag_array[i+1];
1526
1527 map = pci_map_page(pdev, frag->page, frag->page_offset,
1528 frag->size, PCI_DMA_TODEVICE);
1529 if (pci_dma_mapping_error(pdev, map))
1530 goto unwind;
1531
1532 nf->dma = map;
1533 nf->length = frag->size;
1534 }
1535
1536 return 0;
1537
1538 unwind:
1539 while (--i >= 0) {
1540 nf = &pbuf->frag_array[i+1];
1541 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1542 }
1543
1544 nf = &pbuf->frag_array[0];
1545 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1546
1547 out_err:
1548 return -ENOMEM;
1549 }
1550
1551 static inline void
1552 qlcnic_clear_cmddesc(u64 *desc)
1553 {
1554 desc[0] = 0ULL;
1555 desc[2] = 0ULL;
1556 }
1557
1558 netdev_tx_t
1559 qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1560 {
1561 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1562 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
1563 struct qlcnic_cmd_buffer *pbuf;
1564 struct qlcnic_skb_frag *buffrag;
1565 struct cmd_desc_type0 *hwdesc, *first_desc;
1566 struct pci_dev *pdev;
1567 int i, k;
1568
1569 u32 producer;
1570 int frag_count, no_of_desc;
1571 u32 num_txd = tx_ring->num_desc;
1572
1573 frag_count = skb_shinfo(skb)->nr_frags + 1;
1574
1575 /* 4 fragments per cmd des */
1576 no_of_desc = (frag_count + 3) >> 2;
1577
1578 if (unlikely(no_of_desc + 2 > qlcnic_tx_avail(tx_ring))) {
1579 netif_stop_queue(netdev);
1580 adapter->stats.xmit_off++;
1581 return NETDEV_TX_BUSY;
1582 }
1583
1584 producer = tx_ring->producer;
1585 pbuf = &tx_ring->cmd_buf_arr[producer];
1586
1587 pdev = adapter->pdev;
1588
1589 if (qlcnic_map_tx_skb(pdev, skb, pbuf))
1590 goto drop_packet;
1591
1592 pbuf->skb = skb;
1593 pbuf->frag_count = frag_count;
1594
1595 first_desc = hwdesc = &tx_ring->desc_head[producer];
1596 qlcnic_clear_cmddesc((u64 *)hwdesc);
1597
1598 qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
1599 qlcnic_set_tx_port(first_desc, adapter->portnum);
1600
1601 for (i = 0; i < frag_count; i++) {
1602
1603 k = i % 4;
1604
1605 if ((k == 0) && (i > 0)) {
1606 /* move to next desc.*/
1607 producer = get_next_index(producer, num_txd);
1608 hwdesc = &tx_ring->desc_head[producer];
1609 qlcnic_clear_cmddesc((u64 *)hwdesc);
1610 tx_ring->cmd_buf_arr[producer].skb = NULL;
1611 }
1612
1613 buffrag = &pbuf->frag_array[i];
1614
1615 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
1616 switch (k) {
1617 case 0:
1618 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1619 break;
1620 case 1:
1621 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
1622 break;
1623 case 2:
1624 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
1625 break;
1626 case 3:
1627 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
1628 break;
1629 }
1630 }
1631
1632 tx_ring->producer = get_next_index(producer, num_txd);
1633
1634 qlcnic_tso_check(netdev, tx_ring, first_desc, skb);
1635
1636 qlcnic_update_cmd_producer(adapter, tx_ring);
1637
1638 adapter->stats.txbytes += skb->len;
1639 adapter->stats.xmitcalled++;
1640
1641 return NETDEV_TX_OK;
1642
1643 drop_packet:
1644 adapter->stats.txdropped++;
1645 dev_kfree_skb_any(skb);
1646 return NETDEV_TX_OK;
1647 }
1648
1649 static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
1650 {
1651 struct net_device *netdev = adapter->netdev;
1652 u32 temp, temp_state, temp_val;
1653 int rv = 0;
1654
1655 temp = QLCRD32(adapter, CRB_TEMP_STATE);
1656
1657 temp_state = qlcnic_get_temp_state(temp);
1658 temp_val = qlcnic_get_temp_val(temp);
1659
1660 if (temp_state == QLCNIC_TEMP_PANIC) {
1661 dev_err(&netdev->dev,
1662 "Device temperature %d degrees C exceeds"
1663 " maximum allowed. Hardware has been shut down.\n",
1664 temp_val);
1665 rv = 1;
1666 } else if (temp_state == QLCNIC_TEMP_WARN) {
1667 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
1668 dev_err(&netdev->dev,
1669 "Device temperature %d degrees C "
1670 "exceeds operating range."
1671 " Immediate action needed.\n",
1672 temp_val);
1673 }
1674 } else {
1675 if (adapter->temp == QLCNIC_TEMP_WARN) {
1676 dev_info(&netdev->dev,
1677 "Device temperature is now %d degrees C"
1678 " in normal range.\n", temp_val);
1679 }
1680 }
1681 adapter->temp = temp_state;
1682 return rv;
1683 }
1684
1685 void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
1686 {
1687 struct net_device *netdev = adapter->netdev;
1688
1689 if (adapter->ahw.linkup && !linkup) {
1690 dev_info(&netdev->dev, "NIC Link is down\n");
1691 adapter->ahw.linkup = 0;
1692 if (netif_running(netdev)) {
1693 netif_carrier_off(netdev);
1694 netif_stop_queue(netdev);
1695 }
1696 } else if (!adapter->ahw.linkup && linkup) {
1697 dev_info(&netdev->dev, "NIC Link is up\n");
1698 adapter->ahw.linkup = 1;
1699 if (netif_running(netdev)) {
1700 netif_carrier_on(netdev);
1701 netif_wake_queue(netdev);
1702 }
1703 }
1704 }
1705
1706 static void qlcnic_tx_timeout(struct net_device *netdev)
1707 {
1708 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1709
1710 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
1711 return;
1712
1713 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
1714 schedule_work(&adapter->tx_timeout_task);
1715 }
1716
1717 static void qlcnic_tx_timeout_task(struct work_struct *work)
1718 {
1719 struct qlcnic_adapter *adapter =
1720 container_of(work, struct qlcnic_adapter, tx_timeout_task);
1721
1722 if (!netif_running(adapter->netdev))
1723 return;
1724
1725 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1726 return;
1727
1728 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
1729 goto request_reset;
1730
1731 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1732 if (!qlcnic_reset_context(adapter)) {
1733 adapter->netdev->trans_start = jiffies;
1734 return;
1735
1736 /* context reset failed, fall through for fw reset */
1737 }
1738
1739 request_reset:
1740 adapter->need_fw_reset = 1;
1741 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1742 }
1743
1744 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
1745 {
1746 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1747 struct net_device_stats *stats = &netdev->stats;
1748
1749 memset(stats, 0, sizeof(*stats));
1750
1751 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
1752 stats->tx_packets = adapter->stats.xmitfinished;
1753 stats->rx_bytes = adapter->stats.rxbytes;
1754 stats->tx_bytes = adapter->stats.txbytes;
1755 stats->rx_dropped = adapter->stats.rxdropped;
1756 stats->tx_dropped = adapter->stats.txdropped;
1757
1758 return stats;
1759 }
1760
1761 static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
1762 {
1763 u32 status;
1764
1765 status = readl(adapter->isr_int_vec);
1766
1767 if (!(status & adapter->int_vec_bit))
1768 return IRQ_NONE;
1769
1770 /* check interrupt state machine, to be sure */
1771 status = readl(adapter->crb_int_state_reg);
1772 if (!ISR_LEGACY_INT_TRIGGERED(status))
1773 return IRQ_NONE;
1774
1775 writel(0xffffffff, adapter->tgt_status_reg);
1776 /* read twice to ensure write is flushed */
1777 readl(adapter->isr_int_vec);
1778 readl(adapter->isr_int_vec);
1779
1780 return IRQ_HANDLED;
1781 }
1782
1783 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
1784 {
1785 struct qlcnic_host_sds_ring *sds_ring = data;
1786 struct qlcnic_adapter *adapter = sds_ring->adapter;
1787
1788 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1789 goto done;
1790 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
1791 writel(0xffffffff, adapter->tgt_status_reg);
1792 goto done;
1793 }
1794
1795 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
1796 return IRQ_NONE;
1797
1798 done:
1799 adapter->diag_cnt++;
1800 qlcnic_enable_int(sds_ring);
1801 return IRQ_HANDLED;
1802 }
1803
1804 static irqreturn_t qlcnic_intr(int irq, void *data)
1805 {
1806 struct qlcnic_host_sds_ring *sds_ring = data;
1807 struct qlcnic_adapter *adapter = sds_ring->adapter;
1808
1809 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
1810 return IRQ_NONE;
1811
1812 napi_schedule(&sds_ring->napi);
1813
1814 return IRQ_HANDLED;
1815 }
1816
1817 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
1818 {
1819 struct qlcnic_host_sds_ring *sds_ring = data;
1820 struct qlcnic_adapter *adapter = sds_ring->adapter;
1821
1822 /* clear interrupt */
1823 writel(0xffffffff, adapter->tgt_status_reg);
1824
1825 napi_schedule(&sds_ring->napi);
1826 return IRQ_HANDLED;
1827 }
1828
1829 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
1830 {
1831 struct qlcnic_host_sds_ring *sds_ring = data;
1832
1833 napi_schedule(&sds_ring->napi);
1834 return IRQ_HANDLED;
1835 }
1836
1837 static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
1838 {
1839 u32 sw_consumer, hw_consumer;
1840 int count = 0, i;
1841 struct qlcnic_cmd_buffer *buffer;
1842 struct pci_dev *pdev = adapter->pdev;
1843 struct net_device *netdev = adapter->netdev;
1844 struct qlcnic_skb_frag *frag;
1845 int done;
1846 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
1847
1848 if (!spin_trylock(&adapter->tx_clean_lock))
1849 return 1;
1850
1851 sw_consumer = tx_ring->sw_consumer;
1852 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1853
1854 while (sw_consumer != hw_consumer) {
1855 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
1856 if (buffer->skb) {
1857 frag = &buffer->frag_array[0];
1858 pci_unmap_single(pdev, frag->dma, frag->length,
1859 PCI_DMA_TODEVICE);
1860 frag->dma = 0ULL;
1861 for (i = 1; i < buffer->frag_count; i++) {
1862 frag++;
1863 pci_unmap_page(pdev, frag->dma, frag->length,
1864 PCI_DMA_TODEVICE);
1865 frag->dma = 0ULL;
1866 }
1867
1868 adapter->stats.xmitfinished++;
1869 dev_kfree_skb_any(buffer->skb);
1870 buffer->skb = NULL;
1871 }
1872
1873 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
1874 if (++count >= MAX_STATUS_HANDLE)
1875 break;
1876 }
1877
1878 if (count && netif_running(netdev)) {
1879 tx_ring->sw_consumer = sw_consumer;
1880
1881 smp_mb();
1882
1883 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
1884 __netif_tx_lock(tx_ring->txq, smp_processor_id());
1885 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
1886 netif_wake_queue(netdev);
1887 adapter->tx_timeo_cnt = 0;
1888 adapter->stats.xmit_on++;
1889 }
1890 __netif_tx_unlock(tx_ring->txq);
1891 }
1892 }
1893 /*
1894 * If everything is freed up to consumer then check if the ring is full
1895 * If the ring is full then check if more needs to be freed and
1896 * schedule the call back again.
1897 *
1898 * This happens when there are 2 CPUs. One could be freeing and the
1899 * other filling it. If the ring is full when we get out of here and
1900 * the card has already interrupted the host then the host can miss the
1901 * interrupt.
1902 *
1903 * There is still a possible race condition and the host could miss an
1904 * interrupt. The card has to take care of this.
1905 */
1906 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1907 done = (sw_consumer == hw_consumer);
1908 spin_unlock(&adapter->tx_clean_lock);
1909
1910 return done;
1911 }
1912
1913 static int qlcnic_poll(struct napi_struct *napi, int budget)
1914 {
1915 struct qlcnic_host_sds_ring *sds_ring =
1916 container_of(napi, struct qlcnic_host_sds_ring, napi);
1917
1918 struct qlcnic_adapter *adapter = sds_ring->adapter;
1919
1920 int tx_complete;
1921 int work_done;
1922
1923 tx_complete = qlcnic_process_cmd_ring(adapter);
1924
1925 work_done = qlcnic_process_rcv_ring(sds_ring, budget);
1926
1927 if ((work_done < budget) && tx_complete) {
1928 napi_complete(&sds_ring->napi);
1929 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1930 qlcnic_enable_int(sds_ring);
1931 }
1932
1933 return work_done;
1934 }
1935
1936 #ifdef CONFIG_NET_POLL_CONTROLLER
1937 static void qlcnic_poll_controller(struct net_device *netdev)
1938 {
1939 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1940 disable_irq(adapter->irq);
1941 qlcnic_intr(adapter->irq, adapter);
1942 enable_irq(adapter->irq);
1943 }
1944 #endif
1945
1946 static void
1947 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, int state)
1948 {
1949 u32 val;
1950
1951 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
1952 state != QLCNIC_DEV_NEED_QUISCENT);
1953
1954 if (qlcnic_api_lock(adapter))
1955 return ;
1956
1957 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
1958
1959 if (state == QLCNIC_DEV_NEED_RESET)
1960 val |= ((u32)0x1 << (adapter->portnum * 4));
1961 else if (state == QLCNIC_DEV_NEED_QUISCENT)
1962 val |= ((u32)0x1 << ((adapter->portnum * 4) + 1));
1963
1964 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
1965
1966 qlcnic_api_unlock(adapter);
1967 }
1968
1969 static int
1970 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
1971 {
1972 u32 val;
1973
1974 if (qlcnic_api_lock(adapter))
1975 return -EBUSY;
1976
1977 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
1978 val &= ~((u32)0x3 << (adapter->portnum * 4));
1979 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
1980
1981 qlcnic_api_unlock(adapter);
1982
1983 return 0;
1984 }
1985
1986 static void
1987 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter)
1988 {
1989 u32 val;
1990
1991 if (qlcnic_api_lock(adapter))
1992 goto err;
1993
1994 val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
1995 val &= ~((u32)0x1 << (adapter->portnum * 4));
1996 QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val);
1997
1998 if (!(val & 0x11111111))
1999 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
2000
2001 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2002 val &= ~((u32)0x3 << (adapter->portnum * 4));
2003 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2004
2005 qlcnic_api_unlock(adapter);
2006 err:
2007 adapter->fw_fail_cnt = 0;
2008 clear_bit(__QLCNIC_START_FW, &adapter->state);
2009 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2010 }
2011
2012 static int
2013 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2014 {
2015 int act, state;
2016
2017 state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2018 act = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
2019
2020 if (((state & 0x11111111) == (act & 0x11111111)) ||
2021 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2022 return 0;
2023 else
2024 return 1;
2025 }
2026
2027 static int
2028 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2029 {
2030 u32 val, prev_state;
2031 int cnt = 0;
2032 int portnum = adapter->portnum;
2033
2034 if (qlcnic_api_lock(adapter))
2035 return -1;
2036
2037 val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
2038 if (!(val & ((int)0x1 << (portnum * 4)))) {
2039 val |= ((u32)0x1 << (portnum * 4));
2040 QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val);
2041 } else if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state)) {
2042 goto start_fw;
2043 }
2044
2045 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2046
2047 switch (prev_state) {
2048 case QLCNIC_DEV_COLD:
2049 start_fw:
2050 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITALIZING);
2051 qlcnic_api_unlock(adapter);
2052 return 1;
2053
2054 case QLCNIC_DEV_READY:
2055 qlcnic_api_unlock(adapter);
2056 return 0;
2057
2058 case QLCNIC_DEV_NEED_RESET:
2059 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2060 val |= ((u32)0x1 << (portnum * 4));
2061 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2062 break;
2063
2064 case QLCNIC_DEV_NEED_QUISCENT:
2065 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2066 val |= ((u32)0x1 << ((portnum * 4) + 1));
2067 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2068 break;
2069
2070 case QLCNIC_DEV_FAILED:
2071 qlcnic_api_unlock(adapter);
2072 return -1;
2073 }
2074
2075 qlcnic_api_unlock(adapter);
2076 msleep(1000);
2077 while ((QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) != QLCNIC_DEV_READY) &&
2078 ++cnt < 20)
2079 msleep(1000);
2080
2081 if (cnt >= 20)
2082 return -1;
2083
2084 if (qlcnic_api_lock(adapter))
2085 return -1;
2086
2087 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2088 val &= ~((u32)0x3 << (portnum * 4));
2089 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2090
2091 qlcnic_api_unlock(adapter);
2092
2093 return 0;
2094 }
2095
2096 static void
2097 qlcnic_fwinit_work(struct work_struct *work)
2098 {
2099 struct qlcnic_adapter *adapter = container_of(work,
2100 struct qlcnic_adapter, fw_work.work);
2101 int dev_state;
2102
2103 if (++adapter->fw_wait_cnt > FW_POLL_THRESH)
2104 goto err_ret;
2105
2106 if (test_bit(__QLCNIC_START_FW, &adapter->state)) {
2107
2108 if (qlcnic_check_drv_state(adapter)) {
2109 qlcnic_schedule_work(adapter,
2110 qlcnic_fwinit_work, FW_POLL_DELAY);
2111 return;
2112 }
2113
2114 if (!qlcnic_start_firmware(adapter)) {
2115 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2116 return;
2117 }
2118
2119 goto err_ret;
2120 }
2121
2122 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2123 switch (dev_state) {
2124 case QLCNIC_DEV_READY:
2125 if (!qlcnic_start_firmware(adapter)) {
2126 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2127 return;
2128 }
2129 case QLCNIC_DEV_FAILED:
2130 break;
2131
2132 default:
2133 qlcnic_schedule_work(adapter,
2134 qlcnic_fwinit_work, 2 * FW_POLL_DELAY);
2135 return;
2136 }
2137
2138 err_ret:
2139 qlcnic_clr_all_drv_state(adapter);
2140 }
2141
2142 static void
2143 qlcnic_detach_work(struct work_struct *work)
2144 {
2145 struct qlcnic_adapter *adapter = container_of(work,
2146 struct qlcnic_adapter, fw_work.work);
2147 struct net_device *netdev = adapter->netdev;
2148 u32 status;
2149
2150 netif_device_detach(netdev);
2151
2152 qlcnic_down(adapter, netdev);
2153
2154 rtnl_lock();
2155 qlcnic_detach(adapter);
2156 rtnl_unlock();
2157
2158 status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2159
2160 if (status & QLCNIC_RCODE_FATAL_ERROR)
2161 goto err_ret;
2162
2163 if (adapter->temp == QLCNIC_TEMP_PANIC)
2164 goto err_ret;
2165
2166 qlcnic_set_drv_state(adapter, adapter->dev_state);
2167
2168 adapter->fw_wait_cnt = 0;
2169
2170 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2171
2172 return;
2173
2174 err_ret:
2175 qlcnic_clr_all_drv_state(adapter);
2176
2177 }
2178
2179 static void
2180 qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
2181 {
2182 u32 state;
2183
2184 if (qlcnic_api_lock(adapter))
2185 return;
2186
2187 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2188
2189 if (state != QLCNIC_DEV_INITALIZING && state != QLCNIC_DEV_NEED_RESET) {
2190 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
2191 set_bit(__QLCNIC_START_FW, &adapter->state);
2192 }
2193
2194 qlcnic_api_unlock(adapter);
2195 }
2196
2197 static void
2198 qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2199 work_func_t func, int delay)
2200 {
2201 INIT_DELAYED_WORK(&adapter->fw_work, func);
2202 schedule_delayed_work(&adapter->fw_work, round_jiffies_relative(delay));
2203 }
2204
2205 static void
2206 qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
2207 {
2208 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2209 msleep(10);
2210
2211 cancel_delayed_work_sync(&adapter->fw_work);
2212 }
2213
2214 static void
2215 qlcnic_attach_work(struct work_struct *work)
2216 {
2217 struct qlcnic_adapter *adapter = container_of(work,
2218 struct qlcnic_adapter, fw_work.work);
2219 struct net_device *netdev = adapter->netdev;
2220 int err;
2221
2222 if (netif_running(netdev)) {
2223 err = qlcnic_attach(adapter);
2224 if (err)
2225 goto done;
2226
2227 err = qlcnic_up(adapter, netdev);
2228 if (err) {
2229 qlcnic_detach(adapter);
2230 goto done;
2231 }
2232
2233 qlcnic_config_indev_addr(netdev, NETDEV_UP);
2234 }
2235
2236 netif_device_attach(netdev);
2237
2238 done:
2239 adapter->fw_fail_cnt = 0;
2240 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2241
2242 if (!qlcnic_clr_drv_state(adapter))
2243 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2244 FW_POLL_DELAY);
2245 }
2246
2247 static int
2248 qlcnic_check_health(struct qlcnic_adapter *adapter)
2249 {
2250 u32 state = 0, heartbit;
2251 struct net_device *netdev = adapter->netdev;
2252
2253 if (qlcnic_check_temp(adapter))
2254 goto detach;
2255
2256 if (adapter->need_fw_reset) {
2257 qlcnic_dev_request_reset(adapter);
2258 goto detach;
2259 }
2260
2261 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2262 if (state == QLCNIC_DEV_NEED_RESET || state == QLCNIC_DEV_NEED_QUISCENT)
2263 adapter->need_fw_reset = 1;
2264
2265 heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2266 if (heartbit != adapter->heartbit) {
2267 adapter->heartbit = heartbit;
2268 adapter->fw_fail_cnt = 0;
2269 if (adapter->need_fw_reset)
2270 goto detach;
2271 return 0;
2272 }
2273
2274 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2275 return 0;
2276
2277 qlcnic_dev_request_reset(adapter);
2278
2279 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2280
2281 dev_info(&netdev->dev, "firmware hang detected\n");
2282
2283 detach:
2284 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
2285 QLCNIC_DEV_NEED_RESET;
2286
2287 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2288 !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2289 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
2290
2291 return 1;
2292 }
2293
2294 static void
2295 qlcnic_fw_poll_work(struct work_struct *work)
2296 {
2297 struct qlcnic_adapter *adapter = container_of(work,
2298 struct qlcnic_adapter, fw_work.work);
2299
2300 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2301 goto reschedule;
2302
2303
2304 if (qlcnic_check_health(adapter))
2305 return;
2306
2307 reschedule:
2308 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2309 }
2310
2311 static ssize_t
2312 qlcnic_store_bridged_mode(struct device *dev,
2313 struct device_attribute *attr, const char *buf, size_t len)
2314 {
2315 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2316 unsigned long new;
2317 int ret = -EINVAL;
2318
2319 if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
2320 goto err_out;
2321
2322 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2323 goto err_out;
2324
2325 if (strict_strtoul(buf, 2, &new))
2326 goto err_out;
2327
2328 if (!qlcnic_config_bridged_mode(adapter, !!new))
2329 ret = len;
2330
2331 err_out:
2332 return ret;
2333 }
2334
2335 static ssize_t
2336 qlcnic_show_bridged_mode(struct device *dev,
2337 struct device_attribute *attr, char *buf)
2338 {
2339 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2340 int bridged_mode = 0;
2341
2342 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
2343 bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
2344
2345 return sprintf(buf, "%d\n", bridged_mode);
2346 }
2347
2348 static struct device_attribute dev_attr_bridged_mode = {
2349 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2350 .show = qlcnic_show_bridged_mode,
2351 .store = qlcnic_store_bridged_mode,
2352 };
2353
2354 static ssize_t
2355 qlcnic_store_diag_mode(struct device *dev,
2356 struct device_attribute *attr, const char *buf, size_t len)
2357 {
2358 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2359 unsigned long new;
2360
2361 if (strict_strtoul(buf, 2, &new))
2362 return -EINVAL;
2363
2364 if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
2365 adapter->flags ^= QLCNIC_DIAG_ENABLED;
2366
2367 return len;
2368 }
2369
2370 static ssize_t
2371 qlcnic_show_diag_mode(struct device *dev,
2372 struct device_attribute *attr, char *buf)
2373 {
2374 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2375
2376 return sprintf(buf, "%d\n",
2377 !!(adapter->flags & QLCNIC_DIAG_ENABLED));
2378 }
2379
2380 static struct device_attribute dev_attr_diag_mode = {
2381 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2382 .show = qlcnic_show_diag_mode,
2383 .store = qlcnic_store_diag_mode,
2384 };
2385
2386 static int
2387 qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
2388 loff_t offset, size_t size)
2389 {
2390 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
2391 return -EIO;
2392
2393 if ((size != 4) || (offset & 0x3))
2394 return -EINVAL;
2395
2396 if (offset < QLCNIC_PCI_CRBSPACE)
2397 return -EINVAL;
2398
2399 return 0;
2400 }
2401
2402 static ssize_t
2403 qlcnic_sysfs_read_crb(struct kobject *kobj, struct bin_attribute *attr,
2404 char *buf, loff_t offset, size_t size)
2405 {
2406 struct device *dev = container_of(kobj, struct device, kobj);
2407 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2408 u32 data;
2409 int ret;
2410
2411 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
2412 if (ret != 0)
2413 return ret;
2414
2415 data = QLCRD32(adapter, offset);
2416 memcpy(buf, &data, size);
2417 return size;
2418 }
2419
2420 static ssize_t
2421 qlcnic_sysfs_write_crb(struct kobject *kobj, struct bin_attribute *attr,
2422 char *buf, loff_t offset, size_t size)
2423 {
2424 struct device *dev = container_of(kobj, struct device, kobj);
2425 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2426 u32 data;
2427 int ret;
2428
2429 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
2430 if (ret != 0)
2431 return ret;
2432
2433 memcpy(&data, buf, size);
2434 QLCWR32(adapter, offset, data);
2435 return size;
2436 }
2437
2438 static int
2439 qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
2440 loff_t offset, size_t size)
2441 {
2442 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
2443 return -EIO;
2444
2445 if ((size != 8) || (offset & 0x7))
2446 return -EIO;
2447
2448 return 0;
2449 }
2450
2451 static ssize_t
2452 qlcnic_sysfs_read_mem(struct kobject *kobj, struct bin_attribute *attr,
2453 char *buf, loff_t offset, size_t size)
2454 {
2455 struct device *dev = container_of(kobj, struct device, kobj);
2456 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2457 u64 data;
2458 int ret;
2459
2460 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
2461 if (ret != 0)
2462 return ret;
2463
2464 if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
2465 return -EIO;
2466
2467 memcpy(buf, &data, size);
2468
2469 return size;
2470 }
2471
2472 static ssize_t
2473 qlcnic_sysfs_write_mem(struct kobject *kobj, struct bin_attribute *attr,
2474 char *buf, loff_t offset, size_t size)
2475 {
2476 struct device *dev = container_of(kobj, struct device, kobj);
2477 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2478 u64 data;
2479 int ret;
2480
2481 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
2482 if (ret != 0)
2483 return ret;
2484
2485 memcpy(&data, buf, size);
2486
2487 if (qlcnic_pci_mem_write_2M(adapter, offset, data))
2488 return -EIO;
2489
2490 return size;
2491 }
2492
2493
2494 static struct bin_attribute bin_attr_crb = {
2495 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2496 .size = 0,
2497 .read = qlcnic_sysfs_read_crb,
2498 .write = qlcnic_sysfs_write_crb,
2499 };
2500
2501 static struct bin_attribute bin_attr_mem = {
2502 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2503 .size = 0,
2504 .read = qlcnic_sysfs_read_mem,
2505 .write = qlcnic_sysfs_write_mem,
2506 };
2507
2508 static void
2509 qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
2510 {
2511 struct device *dev = &adapter->pdev->dev;
2512
2513 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
2514 if (device_create_file(dev, &dev_attr_bridged_mode))
2515 dev_warn(dev,
2516 "failed to create bridged_mode sysfs entry\n");
2517 }
2518
2519 static void
2520 qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
2521 {
2522 struct device *dev = &adapter->pdev->dev;
2523
2524 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
2525 device_remove_file(dev, &dev_attr_bridged_mode);
2526 }
2527
2528 static void
2529 qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
2530 {
2531 struct device *dev = &adapter->pdev->dev;
2532
2533 if (device_create_file(dev, &dev_attr_diag_mode))
2534 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2535 if (device_create_bin_file(dev, &bin_attr_crb))
2536 dev_info(dev, "failed to create crb sysfs entry\n");
2537 if (device_create_bin_file(dev, &bin_attr_mem))
2538 dev_info(dev, "failed to create mem sysfs entry\n");
2539 }
2540
2541
2542 static void
2543 qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
2544 {
2545 struct device *dev = &adapter->pdev->dev;
2546
2547 device_remove_file(dev, &dev_attr_diag_mode);
2548 device_remove_bin_file(dev, &bin_attr_crb);
2549 device_remove_bin_file(dev, &bin_attr_mem);
2550 }
2551
2552 #ifdef CONFIG_INET
2553
2554 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
2555
2556 static int
2557 qlcnic_destip_supported(struct qlcnic_adapter *adapter)
2558 {
2559 if (adapter->ahw.cut_through)
2560 return 0;
2561
2562 return 1;
2563 }
2564
2565 static void
2566 qlcnic_config_indev_addr(struct net_device *dev, unsigned long event)
2567 {
2568 struct in_device *indev;
2569 struct qlcnic_adapter *adapter = netdev_priv(dev);
2570
2571 if (!qlcnic_destip_supported(adapter))
2572 return;
2573
2574 indev = in_dev_get(dev);
2575 if (!indev)
2576 return;
2577
2578 for_ifa(indev) {
2579 switch (event) {
2580 case NETDEV_UP:
2581 qlcnic_config_ipaddr(adapter,
2582 ifa->ifa_address, QLCNIC_IP_UP);
2583 break;
2584 case NETDEV_DOWN:
2585 qlcnic_config_ipaddr(adapter,
2586 ifa->ifa_address, QLCNIC_IP_DOWN);
2587 break;
2588 default:
2589 break;
2590 }
2591 } endfor_ifa(indev);
2592
2593 in_dev_put(indev);
2594 return;
2595 }
2596
2597 static int qlcnic_netdev_event(struct notifier_block *this,
2598 unsigned long event, void *ptr)
2599 {
2600 struct qlcnic_adapter *adapter;
2601 struct net_device *dev = (struct net_device *)ptr;
2602
2603 recheck:
2604 if (dev == NULL)
2605 goto done;
2606
2607 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2608 dev = vlan_dev_real_dev(dev);
2609 goto recheck;
2610 }
2611
2612 if (!is_qlcnic_netdev(dev))
2613 goto done;
2614
2615 adapter = netdev_priv(dev);
2616
2617 if (!adapter)
2618 goto done;
2619
2620 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2621 goto done;
2622
2623 qlcnic_config_indev_addr(dev, event);
2624 done:
2625 return NOTIFY_DONE;
2626 }
2627
2628 static int
2629 qlcnic_inetaddr_event(struct notifier_block *this,
2630 unsigned long event, void *ptr)
2631 {
2632 struct qlcnic_adapter *adapter;
2633 struct net_device *dev;
2634
2635 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2636
2637 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2638
2639 recheck:
2640 if (dev == NULL || !netif_running(dev))
2641 goto done;
2642
2643 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2644 dev = vlan_dev_real_dev(dev);
2645 goto recheck;
2646 }
2647
2648 if (!is_qlcnic_netdev(dev))
2649 goto done;
2650
2651 adapter = netdev_priv(dev);
2652
2653 if (!adapter || !qlcnic_destip_supported(adapter))
2654 goto done;
2655
2656 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2657 goto done;
2658
2659 switch (event) {
2660 case NETDEV_UP:
2661 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
2662 break;
2663 case NETDEV_DOWN:
2664 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
2665 break;
2666 default:
2667 break;
2668 }
2669
2670 done:
2671 return NOTIFY_DONE;
2672 }
2673
2674 static struct notifier_block qlcnic_netdev_cb = {
2675 .notifier_call = qlcnic_netdev_event,
2676 };
2677
2678 static struct notifier_block qlcnic_inetaddr_cb = {
2679 .notifier_call = qlcnic_inetaddr_event,
2680 };
2681 #else
2682 static void
2683 qlcnic_config_indev_addr(struct net_device *dev, unsigned long event)
2684 { }
2685 #endif
2686
2687 static struct pci_driver qlcnic_driver = {
2688 .name = qlcnic_driver_name,
2689 .id_table = qlcnic_pci_tbl,
2690 .probe = qlcnic_probe,
2691 .remove = __devexit_p(qlcnic_remove),
2692 #ifdef CONFIG_PM
2693 .suspend = qlcnic_suspend,
2694 .resume = qlcnic_resume,
2695 #endif
2696 .shutdown = qlcnic_shutdown
2697 };
2698
2699 static int __init qlcnic_init_module(void)
2700 {
2701
2702 printk(KERN_INFO "%s\n", qlcnic_driver_string);
2703
2704 #ifdef CONFIG_INET
2705 register_netdevice_notifier(&qlcnic_netdev_cb);
2706 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
2707 #endif
2708
2709
2710 return pci_register_driver(&qlcnic_driver);
2711 }
2712
2713 module_init(qlcnic_init_module);
2714
2715 static void __exit qlcnic_exit_module(void)
2716 {
2717
2718 pci_unregister_driver(&qlcnic_driver);
2719
2720 #ifdef CONFIG_INET
2721 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
2722 unregister_netdevice_notifier(&qlcnic_netdev_cb);
2723 #endif
2724 }
2725
2726 module_exit(qlcnic_exit_module);
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