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-rw-r--r--drivers/net/qlcnic/qlcnic_main.c2720
1 files changed, 2720 insertions, 0 deletions
diff --git a/drivers/net/qlcnic/qlcnic_main.c b/drivers/net/qlcnic/qlcnic_main.c
new file mode 100644
index 00000000000..665e8e56b6a
--- /dev/null
+++ b/drivers/net/qlcnic/qlcnic_main.c
@@ -0,0 +1,2720 @@
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/vmalloc.h>
26#include <linux/interrupt.h>
27
28#include "qlcnic.h"
29
30#include <linux/dma-mapping.h>
31#include <linux/if_vlan.h>
32#include <net/ip.h>
33#include <linux/ipv6.h>
34#include <linux/inetdevice.h>
35#include <linux/sysfs.h>
36
37MODULE_DESCRIPTION("QLogic 10 GbE Converged Ethernet Driver");
38MODULE_LICENSE("GPL");
39MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
40MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
41
42char qlcnic_driver_name[] = "qlcnic";
43static const char qlcnic_driver_string[] = "QLogic Converged Ethernet Driver v"
44 QLCNIC_LINUX_VERSIONID;
45
46static int port_mode = QLCNIC_PORT_MODE_AUTO_NEG;
47
48/* Default to restricted 1G auto-neg mode */
49static int wol_port_mode = 5;
50
51static int use_msi = 1;
52module_param(use_msi, int, 0644);
53MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
54
55static int use_msi_x = 1;
56module_param(use_msi_x, int, 0644);
57MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
58
59static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
60module_param(auto_fw_reset, int, 0644);
61MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
62
63static int __devinit qlcnic_probe(struct pci_dev *pdev,
64 const struct pci_device_id *ent);
65static void __devexit qlcnic_remove(struct pci_dev *pdev);
66static int qlcnic_open(struct net_device *netdev);
67static int qlcnic_close(struct net_device *netdev);
68static void qlcnic_tx_timeout(struct net_device *netdev);
69static void qlcnic_tx_timeout_task(struct work_struct *work);
70static void qlcnic_attach_work(struct work_struct *work);
71static void qlcnic_fwinit_work(struct work_struct *work);
72static void qlcnic_fw_poll_work(struct work_struct *work);
73static void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
74 work_func_t func, int delay);
75static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter);
76static int qlcnic_poll(struct napi_struct *napi, int budget);
77#ifdef CONFIG_NET_POLL_CONTROLLER
78static void qlcnic_poll_controller(struct net_device *netdev);
79#endif
80
81static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter);
82static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter);
83static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter);
84static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter);
85
86static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter);
87static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
88
89static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
90static irqreturn_t qlcnic_intr(int irq, void *data);
91static irqreturn_t qlcnic_msi_intr(int irq, void *data);
92static irqreturn_t qlcnic_msix_intr(int irq, void *data);
93
94static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
95static void qlcnic_config_indev_addr(struct net_device *dev, unsigned long);
96
97/* PCI Device ID Table */
98#define ENTRY(device) \
99 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
100 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
101
102#define PCI_DEVICE_ID_QLOGIC_QLE824X 0x8020
103
104static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
105 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
106 {0,}
107};
108
109MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
110
111
112void
113qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
114 struct qlcnic_host_tx_ring *tx_ring)
115{
116 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
117
118 if (qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH) {
119 netif_stop_queue(adapter->netdev);
120 smp_mb();
121 }
122}
123
124static const u32 msi_tgt_status[8] = {
125 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
126 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
127 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
128 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
129};
130
131static const
132struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
133
134static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring)
135{
136 writel(0, sds_ring->crb_intr_mask);
137}
138
139static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
140{
141 struct qlcnic_adapter *adapter = sds_ring->adapter;
142
143 writel(0x1, sds_ring->crb_intr_mask);
144
145 if (!QLCNIC_IS_MSI_FAMILY(adapter))
146 writel(0xfbff, adapter->tgt_mask_reg);
147}
148
149static int
150qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
151{
152 int size = sizeof(struct qlcnic_host_sds_ring) * count;
153
154 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
155
156 return (recv_ctx->sds_rings == NULL);
157}
158
159static void
160qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
161{
162 if (recv_ctx->sds_rings != NULL)
163 kfree(recv_ctx->sds_rings);
164
165 recv_ctx->sds_rings = NULL;
166}
167
168static int
169qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev)
170{
171 int ring;
172 struct qlcnic_host_sds_ring *sds_ring;
173 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
174
175 if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
176 return -ENOMEM;
177
178 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
179 sds_ring = &recv_ctx->sds_rings[ring];
180 netif_napi_add(netdev, &sds_ring->napi,
181 qlcnic_poll, QLCNIC_NETDEV_WEIGHT);
182 }
183
184 return 0;
185}
186
187static void
188qlcnic_napi_del(struct qlcnic_adapter *adapter)
189{
190 int ring;
191 struct qlcnic_host_sds_ring *sds_ring;
192 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
193
194 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
195 sds_ring = &recv_ctx->sds_rings[ring];
196 netif_napi_del(&sds_ring->napi);
197 }
198
199 qlcnic_free_sds_rings(&adapter->recv_ctx);
200}
201
202static void
203qlcnic_napi_enable(struct qlcnic_adapter *adapter)
204{
205 int ring;
206 struct qlcnic_host_sds_ring *sds_ring;
207 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
208
209 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
210 sds_ring = &recv_ctx->sds_rings[ring];
211 napi_enable(&sds_ring->napi);
212 qlcnic_enable_int(sds_ring);
213 }
214}
215
216static void
217qlcnic_napi_disable(struct qlcnic_adapter *adapter)
218{
219 int ring;
220 struct qlcnic_host_sds_ring *sds_ring;
221 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
222
223 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
224 sds_ring = &recv_ctx->sds_rings[ring];
225 qlcnic_disable_int(sds_ring);
226 napi_synchronize(&sds_ring->napi);
227 napi_disable(&sds_ring->napi);
228 }
229}
230
231static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
232{
233 memset(&adapter->stats, 0, sizeof(adapter->stats));
234 return;
235}
236
237static int qlcnic_set_dma_mask(struct qlcnic_adapter *adapter)
238{
239 struct pci_dev *pdev = adapter->pdev;
240 u64 mask, cmask;
241
242 adapter->pci_using_dac = 0;
243
244 mask = DMA_BIT_MASK(39);
245 cmask = mask;
246
247 if (pci_set_dma_mask(pdev, mask) == 0 &&
248 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
249 adapter->pci_using_dac = 1;
250 return 0;
251 }
252
253 return -EIO;
254}
255
256/* Update addressable range if firmware supports it */
257static int
258qlcnic_update_dma_mask(struct qlcnic_adapter *adapter)
259{
260 int change, shift, err;
261 u64 mask, old_mask, old_cmask;
262 struct pci_dev *pdev = adapter->pdev;
263
264 change = 0;
265
266 shift = QLCRD32(adapter, CRB_DMA_SHIFT);
267 if (shift > 32)
268 return 0;
269
270 if (shift > 9)
271 change = 1;
272
273 if (change) {
274 old_mask = pdev->dma_mask;
275 old_cmask = pdev->dev.coherent_dma_mask;
276
277 mask = DMA_BIT_MASK(32+shift);
278
279 err = pci_set_dma_mask(pdev, mask);
280 if (err)
281 goto err_out;
282
283 err = pci_set_consistent_dma_mask(pdev, mask);
284 if (err)
285 goto err_out;
286 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
287 }
288
289 return 0;
290
291err_out:
292 pci_set_dma_mask(pdev, old_mask);
293 pci_set_consistent_dma_mask(pdev, old_cmask);
294 return err;
295}
296
297static void qlcnic_set_port_mode(struct qlcnic_adapter *adapter)
298{
299 u32 val, data;
300
301 val = adapter->ahw.board_type;
302 if ((val == QLCNIC_BRDTYPE_P3_HMEZ) ||
303 (val == QLCNIC_BRDTYPE_P3_XG_LOM)) {
304 if (port_mode == QLCNIC_PORT_MODE_802_3_AP) {
305 data = QLCNIC_PORT_MODE_802_3_AP;
306 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
307 } else if (port_mode == QLCNIC_PORT_MODE_XG) {
308 data = QLCNIC_PORT_MODE_XG;
309 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
310 } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_1G) {
311 data = QLCNIC_PORT_MODE_AUTO_NEG_1G;
312 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
313 } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_XG) {
314 data = QLCNIC_PORT_MODE_AUTO_NEG_XG;
315 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
316 } else {
317 data = QLCNIC_PORT_MODE_AUTO_NEG;
318 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
319 }
320
321 if ((wol_port_mode != QLCNIC_PORT_MODE_802_3_AP) &&
322 (wol_port_mode != QLCNIC_PORT_MODE_XG) &&
323 (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_1G) &&
324 (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_XG)) {
325 wol_port_mode = QLCNIC_PORT_MODE_AUTO_NEG;
326 }
327 QLCWR32(adapter, QLCNIC_WOL_PORT_MODE, wol_port_mode);
328 }
329}
330
331static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
332{
333 u32 control;
334 int pos;
335
336 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
337 if (pos) {
338 pci_read_config_dword(pdev, pos, &control);
339 if (enable)
340 control |= PCI_MSIX_FLAGS_ENABLE;
341 else
342 control = 0;
343 pci_write_config_dword(pdev, pos, control);
344 }
345}
346
347static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
348{
349 int i;
350
351 for (i = 0; i < count; i++)
352 adapter->msix_entries[i].entry = i;
353}
354
355static int
356qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
357{
358 int i;
359 unsigned char *p;
360 u64 mac_addr;
361 struct net_device *netdev = adapter->netdev;
362 struct pci_dev *pdev = adapter->pdev;
363
364 if (qlcnic_get_mac_addr(adapter, &mac_addr) != 0)
365 return -EIO;
366
367 p = (unsigned char *)&mac_addr;
368 for (i = 0; i < 6; i++)
369 netdev->dev_addr[i] = *(p + 5 - i);
370
371 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
372 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
373
374 /* set station address */
375
376 if (!is_valid_ether_addr(netdev->perm_addr))
377 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
378 netdev->dev_addr);
379
380 return 0;
381}
382
383static int qlcnic_set_mac(struct net_device *netdev, void *p)
384{
385 struct qlcnic_adapter *adapter = netdev_priv(netdev);
386 struct sockaddr *addr = p;
387
388 if (!is_valid_ether_addr(addr->sa_data))
389 return -EINVAL;
390
391 if (netif_running(netdev)) {
392 netif_device_detach(netdev);
393 qlcnic_napi_disable(adapter);
394 }
395
396 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
397 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
398 qlcnic_set_multi(adapter->netdev);
399
400 if (netif_running(netdev)) {
401 netif_device_attach(netdev);
402 qlcnic_napi_enable(adapter);
403 }
404 return 0;
405}
406
407static const struct net_device_ops qlcnic_netdev_ops = {
408 .ndo_open = qlcnic_open,
409 .ndo_stop = qlcnic_close,
410 .ndo_start_xmit = qlcnic_xmit_frame,
411 .ndo_get_stats = qlcnic_get_stats,
412 .ndo_validate_addr = eth_validate_addr,
413 .ndo_set_multicast_list = qlcnic_set_multi,
414 .ndo_set_mac_address = qlcnic_set_mac,
415 .ndo_change_mtu = qlcnic_change_mtu,
416 .ndo_tx_timeout = qlcnic_tx_timeout,
417#ifdef CONFIG_NET_POLL_CONTROLLER
418 .ndo_poll_controller = qlcnic_poll_controller,
419#endif
420};
421
422static void
423qlcnic_setup_intr(struct qlcnic_adapter *adapter)
424{
425 const struct qlcnic_legacy_intr_set *legacy_intrp;
426 struct pci_dev *pdev = adapter->pdev;
427 int err, num_msix;
428
429 if (adapter->rss_supported) {
430 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
431 MSIX_ENTRIES_PER_ADAPTER : 2;
432 } else
433 num_msix = 1;
434
435 adapter->max_sds_rings = 1;
436
437 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
438
439 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
440
441 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
442 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
443 legacy_intrp->tgt_status_reg);
444 adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
445 legacy_intrp->tgt_mask_reg);
446 adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
447
448 adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
449 ISR_INT_STATE_REG);
450
451 qlcnic_set_msix_bit(pdev, 0);
452
453 if (adapter->msix_supported) {
454
455 qlcnic_init_msix_entries(adapter, num_msix);
456 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
457 if (err == 0) {
458 adapter->flags |= QLCNIC_MSIX_ENABLED;
459 qlcnic_set_msix_bit(pdev, 1);
460
461 if (adapter->rss_supported)
462 adapter->max_sds_rings = num_msix;
463
464 dev_info(&pdev->dev, "using msi-x interrupts\n");
465 return;
466 }
467
468 if (err > 0)
469 pci_disable_msix(pdev);
470
471 /* fall through for msi */
472 }
473
474 if (use_msi && !pci_enable_msi(pdev)) {
475 adapter->flags |= QLCNIC_MSI_ENABLED;
476 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
477 msi_tgt_status[adapter->ahw.pci_func]);
478 dev_info(&pdev->dev, "using msi interrupts\n");
479 adapter->msix_entries[0].vector = pdev->irq;
480 return;
481 }
482
483 dev_info(&pdev->dev, "using legacy interrupts\n");
484 adapter->msix_entries[0].vector = pdev->irq;
485}
486
487static void
488qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
489{
490 if (adapter->flags & QLCNIC_MSIX_ENABLED)
491 pci_disable_msix(adapter->pdev);
492 if (adapter->flags & QLCNIC_MSI_ENABLED)
493 pci_disable_msi(adapter->pdev);
494}
495
496static void
497qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
498{
499 if (adapter->ahw.pci_base0 != NULL)
500 iounmap(adapter->ahw.pci_base0);
501}
502
503static int
504qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
505{
506 void __iomem *mem_ptr0 = NULL;
507 resource_size_t mem_base;
508 unsigned long mem_len, pci_len0 = 0;
509
510 struct pci_dev *pdev = adapter->pdev;
511 int pci_func = adapter->ahw.pci_func;
512
513 /*
514 * Set the CRB window to invalid. If any register in window 0 is
515 * accessed it should set the window to 0 and then reset it to 1.
516 */
517 adapter->ahw.crb_win = -1;
518 adapter->ahw.ocm_win = -1;
519
520 /* remap phys address */
521 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
522 mem_len = pci_resource_len(pdev, 0);
523
524 if (mem_len == QLCNIC_PCI_2MB_SIZE) {
525
526 mem_ptr0 = pci_ioremap_bar(pdev, 0);
527 if (mem_ptr0 == NULL) {
528 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
529 return -EIO;
530 }
531 pci_len0 = mem_len;
532 } else {
533 return -EIO;
534 }
535
536 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
537
538 adapter->ahw.pci_base0 = mem_ptr0;
539 adapter->ahw.pci_len0 = pci_len0;
540
541 adapter->ahw.ocm_win_crb = qlcnic_get_ioaddr(adapter,
542 QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
543
544 return 0;
545}
546
547static void get_brd_name(struct qlcnic_adapter *adapter, char *name)
548{
549 struct pci_dev *pdev = adapter->pdev;
550 int i, found = 0;
551
552 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
553 if (qlcnic_boards[i].vendor == pdev->vendor &&
554 qlcnic_boards[i].device == pdev->device &&
555 qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
556 qlcnic_boards[i].sub_device == pdev->subsystem_device) {
557 strcpy(name, qlcnic_boards[i].short_name);
558 found = 1;
559 break;
560 }
561
562 }
563
564 if (!found)
565 name = "Unknown";
566}
567
568static void
569qlcnic_check_options(struct qlcnic_adapter *adapter)
570{
571 u32 fw_major, fw_minor, fw_build;
572 char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
573 char serial_num[32];
574 int i, offset, val;
575 int *ptr32;
576 struct pci_dev *pdev = adapter->pdev;
577
578 adapter->driver_mismatch = 0;
579
580 ptr32 = (int *)&serial_num;
581 offset = QLCNIC_FW_SERIAL_NUM_OFFSET;
582 for (i = 0; i < 8; i++) {
583 if (qlcnic_rom_fast_read(adapter, offset, &val) == -1) {
584 dev_err(&pdev->dev, "error reading board info\n");
585 adapter->driver_mismatch = 1;
586 return;
587 }
588 ptr32[i] = cpu_to_le32(val);
589 offset += sizeof(u32);
590 }
591
592 fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
593 fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
594 fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
595
596 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
597
598 if (adapter->portnum == 0) {
599 get_brd_name(adapter, brd_name);
600
601 pr_info("%s: %s Board Chip rev 0x%x\n",
602 module_name(THIS_MODULE),
603 brd_name, adapter->ahw.revision_id);
604 }
605
606 if (adapter->fw_version < QLCNIC_VERSION_CODE(3, 4, 216)) {
607 adapter->driver_mismatch = 1;
608 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
609 fw_major, fw_minor, fw_build);
610 return;
611 }
612
613 i = QLCRD32(adapter, QLCNIC_SRE_MISC);
614 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
615
616 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
617 fw_major, fw_minor, fw_build,
618 adapter->ahw.cut_through ? "cut-through" : "legacy");
619
620 if (adapter->fw_version >= QLCNIC_VERSION_CODE(4, 0, 222))
621 adapter->capabilities = QLCRD32(adapter, CRB_FW_CAPABILITIES_1);
622
623 adapter->flags &= ~QLCNIC_LRO_ENABLED;
624
625 if (adapter->ahw.port_type == QLCNIC_XGBE) {
626 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
627 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
628 } else if (adapter->ahw.port_type == QLCNIC_GBE) {
629 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
630 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
631 }
632
633 adapter->msix_supported = !!use_msi_x;
634 adapter->rss_supported = !!use_msi_x;
635
636 adapter->num_txd = MAX_CMD_DESCRIPTORS;
637
638 adapter->num_lro_rxd = 0;
639 adapter->max_rds_rings = 2;
640}
641
642static int
643qlcnic_start_firmware(struct qlcnic_adapter *adapter)
644{
645 int val, err, first_boot;
646
647 err = qlcnic_set_dma_mask(adapter);
648 if (err)
649 return err;
650
651 if (!qlcnic_can_start_firmware(adapter))
652 goto wait_init;
653
654 first_boot = QLCRD32(adapter, QLCNIC_CAM_RAM(0x1fc));
655 if (first_boot == 0x55555555)
656 /* This is the first boot after power up */
657 QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
658
659 qlcnic_request_firmware(adapter);
660
661 err = qlcnic_need_fw_reset(adapter);
662 if (err < 0)
663 goto err_out;
664 if (err == 0)
665 goto wait_init;
666
667 if (first_boot != 0x55555555) {
668 QLCWR32(adapter, CRB_CMDPEG_STATE, 0);
669 qlcnic_pinit_from_rom(adapter);
670 msleep(1);
671 }
672
673 QLCWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
674 QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0);
675 QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0);
676
677 qlcnic_set_port_mode(adapter);
678
679 err = qlcnic_load_firmware(adapter);
680 if (err)
681 goto err_out;
682
683 qlcnic_release_firmware(adapter);
684
685 val = (_QLCNIC_LINUX_MAJOR << 16)
686 | ((_QLCNIC_LINUX_MINOR << 8))
687 | (_QLCNIC_LINUX_SUBVERSION);
688 QLCWR32(adapter, CRB_DRIVER_VERSION, val);
689
690wait_init:
691 /* Handshake with the card before we register the devices. */
692 err = qlcnic_phantom_init(adapter);
693 if (err)
694 goto err_out;
695
696 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
697
698 qlcnic_update_dma_mask(adapter);
699
700 qlcnic_check_options(adapter);
701
702 adapter->need_fw_reset = 0;
703
704 /* fall through and release firmware */
705
706err_out:
707 qlcnic_release_firmware(adapter);
708 return err;
709}
710
711static int
712qlcnic_request_irq(struct qlcnic_adapter *adapter)
713{
714 irq_handler_t handler;
715 struct qlcnic_host_sds_ring *sds_ring;
716 int err, ring;
717
718 unsigned long flags = 0;
719 struct net_device *netdev = adapter->netdev;
720 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
721
722 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
723 handler = qlcnic_tmp_intr;
724 if (!QLCNIC_IS_MSI_FAMILY(adapter))
725 flags |= IRQF_SHARED;
726
727 } else {
728 if (adapter->flags & QLCNIC_MSIX_ENABLED)
729 handler = qlcnic_msix_intr;
730 else if (adapter->flags & QLCNIC_MSI_ENABLED)
731 handler = qlcnic_msi_intr;
732 else {
733 flags |= IRQF_SHARED;
734 handler = qlcnic_intr;
735 }
736 }
737 adapter->irq = netdev->irq;
738
739 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
740 sds_ring = &recv_ctx->sds_rings[ring];
741 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
742 err = request_irq(sds_ring->irq, handler,
743 flags, sds_ring->name, sds_ring);
744 if (err)
745 return err;
746 }
747
748 return 0;
749}
750
751static void
752qlcnic_free_irq(struct qlcnic_adapter *adapter)
753{
754 int ring;
755 struct qlcnic_host_sds_ring *sds_ring;
756
757 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
758
759 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
760 sds_ring = &recv_ctx->sds_rings[ring];
761 free_irq(sds_ring->irq, sds_ring);
762 }
763}
764
765static void
766qlcnic_init_coalesce_defaults(struct qlcnic_adapter *adapter)
767{
768 adapter->coal.flags = QLCNIC_INTR_DEFAULT;
769 adapter->coal.normal.data.rx_time_us =
770 QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
771 adapter->coal.normal.data.rx_packets =
772 QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
773 adapter->coal.normal.data.tx_time_us =
774 QLCNIC_DEFAULT_INTR_COALESCE_TX_TIME_US;
775 adapter->coal.normal.data.tx_packets =
776 QLCNIC_DEFAULT_INTR_COALESCE_TX_PACKETS;
777}
778
779static int
780__qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
781{
782 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
783 return -EIO;
784
785 qlcnic_set_multi(netdev);
786 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
787
788 adapter->ahw.linkup = 0;
789
790 if (adapter->max_sds_rings > 1)
791 qlcnic_config_rss(adapter, 1);
792
793 qlcnic_config_intr_coalesce(adapter);
794
795 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
796 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
797
798 qlcnic_napi_enable(adapter);
799
800 qlcnic_linkevent_request(adapter, 1);
801
802 set_bit(__QLCNIC_DEV_UP, &adapter->state);
803 return 0;
804}
805
806/* Usage: During resume and firmware recovery module.*/
807
808static int
809qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
810{
811 int err = 0;
812
813 rtnl_lock();
814 if (netif_running(netdev))
815 err = __qlcnic_up(adapter, netdev);
816 rtnl_unlock();
817
818 return err;
819}
820
821static void
822__qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
823{
824 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
825 return;
826
827 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
828 return;
829
830 smp_mb();
831 spin_lock(&adapter->tx_clean_lock);
832 netif_carrier_off(netdev);
833 netif_tx_disable(netdev);
834
835 qlcnic_free_mac_list(adapter);
836
837 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
838
839 qlcnic_napi_disable(adapter);
840
841 qlcnic_release_tx_buffers(adapter);
842 spin_unlock(&adapter->tx_clean_lock);
843}
844
845/* Usage: During suspend and firmware recovery module */
846
847static void
848qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
849{
850 rtnl_lock();
851 if (netif_running(netdev))
852 __qlcnic_down(adapter, netdev);
853 rtnl_unlock();
854
855}
856
857static int
858qlcnic_attach(struct qlcnic_adapter *adapter)
859{
860 struct net_device *netdev = adapter->netdev;
861 struct pci_dev *pdev = adapter->pdev;
862 int err, ring;
863 struct qlcnic_host_rds_ring *rds_ring;
864
865 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
866 return 0;
867
868 err = qlcnic_init_firmware(adapter);
869 if (err)
870 return err;
871
872 err = qlcnic_napi_add(adapter, netdev);
873 if (err)
874 return err;
875
876 err = qlcnic_alloc_sw_resources(adapter);
877 if (err) {
878 dev_err(&pdev->dev, "Error in setting sw resources\n");
879 return err;
880 }
881
882 err = qlcnic_alloc_hw_resources(adapter);
883 if (err) {
884 dev_err(&pdev->dev, "Error in setting hw resources\n");
885 goto err_out_free_sw;
886 }
887
888
889 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
890 rds_ring = &adapter->recv_ctx.rds_rings[ring];
891 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
892 }
893
894 err = qlcnic_request_irq(adapter);
895 if (err) {
896 dev_err(&pdev->dev, "failed to setup interrupt\n");
897 goto err_out_free_rxbuf;
898 }
899
900 qlcnic_init_coalesce_defaults(adapter);
901
902 qlcnic_create_sysfs_entries(adapter);
903
904 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
905 return 0;
906
907err_out_free_rxbuf:
908 qlcnic_release_rx_buffers(adapter);
909 qlcnic_free_hw_resources(adapter);
910err_out_free_sw:
911 qlcnic_free_sw_resources(adapter);
912 return err;
913}
914
915static void
916qlcnic_detach(struct qlcnic_adapter *adapter)
917{
918 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
919 return;
920
921 qlcnic_remove_sysfs_entries(adapter);
922
923 qlcnic_free_hw_resources(adapter);
924 qlcnic_release_rx_buffers(adapter);
925 qlcnic_free_irq(adapter);
926 qlcnic_napi_del(adapter);
927 qlcnic_free_sw_resources(adapter);
928
929 adapter->is_up = 0;
930}
931
932void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
933{
934 struct qlcnic_adapter *adapter = netdev_priv(netdev);
935 struct qlcnic_host_sds_ring *sds_ring;
936 int ring;
937
938 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
939 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
940 sds_ring = &adapter->recv_ctx.sds_rings[ring];
941 qlcnic_disable_int(sds_ring);
942 }
943 }
944
945 qlcnic_detach(adapter);
946
947 adapter->diag_test = 0;
948 adapter->max_sds_rings = max_sds_rings;
949
950 if (qlcnic_attach(adapter))
951 return;
952
953 if (netif_running(netdev))
954 __qlcnic_up(adapter, netdev);
955
956 netif_device_attach(netdev);
957}
958
959int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
960{
961 struct qlcnic_adapter *adapter = netdev_priv(netdev);
962 struct qlcnic_host_sds_ring *sds_ring;
963 int ring;
964 int ret;
965
966 netif_device_detach(netdev);
967
968 if (netif_running(netdev))
969 __qlcnic_down(adapter, netdev);
970
971 qlcnic_detach(adapter);
972
973 adapter->max_sds_rings = 1;
974 adapter->diag_test = test;
975
976 ret = qlcnic_attach(adapter);
977 if (ret)
978 return ret;
979
980 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
981 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
982 sds_ring = &adapter->recv_ctx.sds_rings[ring];
983 qlcnic_enable_int(sds_ring);
984 }
985 }
986
987 return 0;
988}
989
990int
991qlcnic_reset_context(struct qlcnic_adapter *adapter)
992{
993 int err = 0;
994 struct net_device *netdev = adapter->netdev;
995
996 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
997 return -EBUSY;
998
999 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1000
1001 netif_device_detach(netdev);
1002
1003 if (netif_running(netdev))
1004 __qlcnic_down(adapter, netdev);
1005
1006 qlcnic_detach(adapter);
1007
1008 if (netif_running(netdev)) {
1009 err = qlcnic_attach(adapter);
1010 if (!err)
1011 err = __qlcnic_up(adapter, netdev);
1012
1013 if (err)
1014 goto done;
1015 }
1016
1017 netif_device_attach(netdev);
1018 }
1019
1020done:
1021 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1022 return err;
1023}
1024
1025static int
1026qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
1027 struct net_device *netdev)
1028{
1029 int err;
1030 struct pci_dev *pdev = adapter->pdev;
1031
1032 adapter->rx_csum = 1;
1033 adapter->mc_enabled = 0;
1034 adapter->max_mc_count = 38;
1035
1036 netdev->netdev_ops = &qlcnic_netdev_ops;
1037 netdev->watchdog_timeo = 2*HZ;
1038
1039 qlcnic_change_mtu(netdev, netdev->mtu);
1040
1041 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1042
1043 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1044 netdev->features |= (NETIF_F_GRO);
1045 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1046
1047 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1048 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1049
1050 if (adapter->pci_using_dac) {
1051 netdev->features |= NETIF_F_HIGHDMA;
1052 netdev->vlan_features |= NETIF_F_HIGHDMA;
1053 }
1054
1055 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
1056 netdev->features |= (NETIF_F_HW_VLAN_TX);
1057
1058 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1059 netdev->features |= NETIF_F_LRO;
1060
1061 netdev->irq = adapter->msix_entries[0].vector;
1062
1063 INIT_WORK(&adapter->tx_timeout_task, qlcnic_tx_timeout_task);
1064
1065 if (qlcnic_read_mac_addr(adapter))
1066 dev_warn(&pdev->dev, "failed to read mac addr\n");
1067
1068 netif_carrier_off(netdev);
1069 netif_stop_queue(netdev);
1070
1071 err = register_netdev(netdev);
1072 if (err) {
1073 dev_err(&pdev->dev, "failed to register net device\n");
1074 return err;
1075 }
1076
1077 return 0;
1078}
1079
1080static int __devinit
1081qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1082{
1083 struct net_device *netdev = NULL;
1084 struct qlcnic_adapter *adapter = NULL;
1085 int err;
1086 int pci_func_id = PCI_FUNC(pdev->devfn);
1087 uint8_t revision_id;
1088
1089 err = pci_enable_device(pdev);
1090 if (err)
1091 return err;
1092
1093 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1094 err = -ENODEV;
1095 goto err_out_disable_pdev;
1096 }
1097
1098 err = pci_request_regions(pdev, qlcnic_driver_name);
1099 if (err)
1100 goto err_out_disable_pdev;
1101
1102 pci_set_master(pdev);
1103
1104 netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1105 if (!netdev) {
1106 dev_err(&pdev->dev, "failed to allocate net_device\n");
1107 err = -ENOMEM;
1108 goto err_out_free_res;
1109 }
1110
1111 SET_NETDEV_DEV(netdev, &pdev->dev);
1112
1113 adapter = netdev_priv(netdev);
1114 adapter->netdev = netdev;
1115 adapter->pdev = pdev;
1116 adapter->ahw.pci_func = pci_func_id;
1117
1118 revision_id = pdev->revision;
1119 adapter->ahw.revision_id = revision_id;
1120
1121 rwlock_init(&adapter->ahw.crb_lock);
1122 mutex_init(&adapter->ahw.mem_lock);
1123
1124 spin_lock_init(&adapter->tx_clean_lock);
1125 INIT_LIST_HEAD(&adapter->mac_list);
1126
1127 err = qlcnic_setup_pci_map(adapter);
1128 if (err)
1129 goto err_out_free_netdev;
1130
1131 /* This will be reset for mezz cards */
1132 adapter->portnum = pci_func_id;
1133
1134 err = qlcnic_get_board_info(adapter);
1135 if (err) {
1136 dev_err(&pdev->dev, "Error getting board config info.\n");
1137 goto err_out_iounmap;
1138 }
1139
1140
1141 err = qlcnic_start_firmware(adapter);
1142 if (err)
1143 goto err_out_decr_ref;
1144
1145 /*
1146 * See if the firmware gave us a virtual-physical port mapping.
1147 */
1148 adapter->physical_port = adapter->portnum;
1149
1150 qlcnic_clear_stats(adapter);
1151
1152 qlcnic_setup_intr(adapter);
1153
1154 err = qlcnic_setup_netdev(adapter, netdev);
1155 if (err)
1156 goto err_out_disable_msi;
1157
1158 pci_set_drvdata(pdev, adapter);
1159
1160 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1161
1162 switch (adapter->ahw.port_type) {
1163 case QLCNIC_GBE:
1164 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1165 adapter->netdev->name);
1166 break;
1167 case QLCNIC_XGBE:
1168 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1169 adapter->netdev->name);
1170 break;
1171 }
1172
1173 qlcnic_create_diag_entries(adapter);
1174
1175 return 0;
1176
1177err_out_disable_msi:
1178 qlcnic_teardown_intr(adapter);
1179
1180err_out_decr_ref:
1181 qlcnic_clr_all_drv_state(adapter);
1182
1183err_out_iounmap:
1184 qlcnic_cleanup_pci_map(adapter);
1185
1186err_out_free_netdev:
1187 free_netdev(netdev);
1188
1189err_out_free_res:
1190 pci_release_regions(pdev);
1191
1192err_out_disable_pdev:
1193 pci_set_drvdata(pdev, NULL);
1194 pci_disable_device(pdev);
1195 return err;
1196}
1197
1198static void __devexit qlcnic_remove(struct pci_dev *pdev)
1199{
1200 struct qlcnic_adapter *adapter;
1201 struct net_device *netdev;
1202
1203 adapter = pci_get_drvdata(pdev);
1204 if (adapter == NULL)
1205 return;
1206
1207 netdev = adapter->netdev;
1208
1209 qlcnic_cancel_fw_work(adapter);
1210
1211 unregister_netdev(netdev);
1212
1213 cancel_work_sync(&adapter->tx_timeout_task);
1214
1215 qlcnic_detach(adapter);
1216
1217 qlcnic_clr_all_drv_state(adapter);
1218
1219 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1220
1221 qlcnic_teardown_intr(adapter);
1222
1223 qlcnic_remove_diag_entries(adapter);
1224
1225 qlcnic_cleanup_pci_map(adapter);
1226
1227 qlcnic_release_firmware(adapter);
1228
1229 pci_release_regions(pdev);
1230 pci_disable_device(pdev);
1231 pci_set_drvdata(pdev, NULL);
1232
1233 free_netdev(netdev);
1234}
1235static int __qlcnic_shutdown(struct pci_dev *pdev)
1236{
1237 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1238 struct net_device *netdev = adapter->netdev;
1239 int retval;
1240
1241 netif_device_detach(netdev);
1242
1243 qlcnic_cancel_fw_work(adapter);
1244
1245 if (netif_running(netdev))
1246 qlcnic_down(adapter, netdev);
1247
1248 cancel_work_sync(&adapter->tx_timeout_task);
1249
1250 qlcnic_detach(adapter);
1251
1252 qlcnic_clr_all_drv_state(adapter);
1253
1254 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1255
1256 retval = pci_save_state(pdev);
1257 if (retval)
1258 return retval;
1259
1260 if (qlcnic_wol_supported(adapter)) {
1261 pci_enable_wake(pdev, PCI_D3cold, 1);
1262 pci_enable_wake(pdev, PCI_D3hot, 1);
1263 }
1264
1265 return 0;
1266}
1267
1268static void qlcnic_shutdown(struct pci_dev *pdev)
1269{
1270 if (__qlcnic_shutdown(pdev))
1271 return;
1272
1273 pci_disable_device(pdev);
1274}
1275
1276#ifdef CONFIG_PM
1277static int
1278qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1279{
1280 int retval;
1281
1282 retval = __qlcnic_shutdown(pdev);
1283 if (retval)
1284 return retval;
1285
1286 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1287 return 0;
1288}
1289
1290static int
1291qlcnic_resume(struct pci_dev *pdev)
1292{
1293 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1294 struct net_device *netdev = adapter->netdev;
1295 int err;
1296
1297 err = pci_enable_device(pdev);
1298 if (err)
1299 return err;
1300
1301 pci_set_power_state(pdev, PCI_D0);
1302 pci_set_master(pdev);
1303 pci_restore_state(pdev);
1304
1305 adapter->ahw.crb_win = -1;
1306 adapter->ahw.ocm_win = -1;
1307
1308 err = qlcnic_start_firmware(adapter);
1309 if (err) {
1310 dev_err(&pdev->dev, "failed to start firmware\n");
1311 return err;
1312 }
1313
1314 if (netif_running(netdev)) {
1315 err = qlcnic_attach(adapter);
1316 if (err)
1317 goto err_out;
1318
1319 err = qlcnic_up(adapter, netdev);
1320 if (err)
1321 goto err_out_detach;
1322
1323
1324 qlcnic_config_indev_addr(netdev, NETDEV_UP);
1325 }
1326
1327 netif_device_attach(netdev);
1328 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1329 return 0;
1330
1331err_out_detach:
1332 qlcnic_detach(adapter);
1333err_out:
1334 qlcnic_clr_all_drv_state(adapter);
1335 return err;
1336}
1337#endif
1338
1339static int qlcnic_open(struct net_device *netdev)
1340{
1341 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1342 int err;
1343
1344 if (adapter->driver_mismatch)
1345 return -EIO;
1346
1347 err = qlcnic_attach(adapter);
1348 if (err)
1349 return err;
1350
1351 err = __qlcnic_up(adapter, netdev);
1352 if (err)
1353 goto err_out;
1354
1355 netif_start_queue(netdev);
1356
1357 return 0;
1358
1359err_out:
1360 qlcnic_detach(adapter);
1361 return err;
1362}
1363
1364/*
1365 * qlcnic_close - Disables a network interface entry point
1366 */
1367static int qlcnic_close(struct net_device *netdev)
1368{
1369 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1370
1371 __qlcnic_down(adapter, netdev);
1372 return 0;
1373}
1374
1375static void
1376qlcnic_tso_check(struct net_device *netdev,
1377 struct qlcnic_host_tx_ring *tx_ring,
1378 struct cmd_desc_type0 *first_desc,
1379 struct sk_buff *skb)
1380{
1381 u8 opcode = TX_ETHER_PKT;
1382 __be16 protocol = skb->protocol;
1383 u16 flags = 0, vid = 0;
1384 u32 producer;
1385 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1386 struct cmd_desc_type0 *hwdesc;
1387 struct vlan_ethhdr *vh;
1388
1389 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1390
1391 vh = (struct vlan_ethhdr *)skb->data;
1392 protocol = vh->h_vlan_encapsulated_proto;
1393 flags = FLAGS_VLAN_TAGGED;
1394
1395 } else if (vlan_tx_tag_present(skb)) {
1396
1397 flags = FLAGS_VLAN_OOB;
1398 vid = vlan_tx_tag_get(skb);
1399 qlcnic_set_tx_vlan_tci(first_desc, vid);
1400 vlan_oob = 1;
1401 }
1402
1403 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1404 skb_shinfo(skb)->gso_size > 0) {
1405
1406 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1407
1408 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1409 first_desc->total_hdr_length = hdr_len;
1410 if (vlan_oob) {
1411 first_desc->total_hdr_length += VLAN_HLEN;
1412 first_desc->tcp_hdr_offset = VLAN_HLEN;
1413 first_desc->ip_hdr_offset = VLAN_HLEN;
1414 /* Only in case of TSO on vlan device */
1415 flags |= FLAGS_VLAN_TAGGED;
1416 }
1417
1418 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1419 TX_TCP_LSO6 : TX_TCP_LSO;
1420 tso = 1;
1421
1422 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1423 u8 l4proto;
1424
1425 if (protocol == cpu_to_be16(ETH_P_IP)) {
1426 l4proto = ip_hdr(skb)->protocol;
1427
1428 if (l4proto == IPPROTO_TCP)
1429 opcode = TX_TCP_PKT;
1430 else if (l4proto == IPPROTO_UDP)
1431 opcode = TX_UDP_PKT;
1432 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1433 l4proto = ipv6_hdr(skb)->nexthdr;
1434
1435 if (l4proto == IPPROTO_TCP)
1436 opcode = TX_TCPV6_PKT;
1437 else if (l4proto == IPPROTO_UDP)
1438 opcode = TX_UDPV6_PKT;
1439 }
1440 }
1441
1442 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1443 first_desc->ip_hdr_offset += skb_network_offset(skb);
1444 qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
1445
1446 if (!tso)
1447 return;
1448
1449 /* For LSO, we need to copy the MAC/IP/TCP headers into
1450 * the descriptor ring
1451 */
1452 producer = tx_ring->producer;
1453 copied = 0;
1454 offset = 2;
1455
1456 if (vlan_oob) {
1457 /* Create a TSO vlan header template for firmware */
1458
1459 hwdesc = &tx_ring->desc_head[producer];
1460 tx_ring->cmd_buf_arr[producer].skb = NULL;
1461
1462 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1463 hdr_len + VLAN_HLEN);
1464
1465 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1466 skb_copy_from_linear_data(skb, vh, 12);
1467 vh->h_vlan_proto = htons(ETH_P_8021Q);
1468 vh->h_vlan_TCI = htons(vid);
1469 skb_copy_from_linear_data_offset(skb, 12,
1470 (char *)vh + 16, copy_len - 16);
1471
1472 copied = copy_len - VLAN_HLEN;
1473 offset = 0;
1474
1475 producer = get_next_index(producer, tx_ring->num_desc);
1476 }
1477
1478 while (copied < hdr_len) {
1479
1480 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1481 (hdr_len - copied));
1482
1483 hwdesc = &tx_ring->desc_head[producer];
1484 tx_ring->cmd_buf_arr[producer].skb = NULL;
1485
1486 skb_copy_from_linear_data_offset(skb, copied,
1487 (char *)hwdesc + offset, copy_len);
1488
1489 copied += copy_len;
1490 offset = 0;
1491
1492 producer = get_next_index(producer, tx_ring->num_desc);
1493 }
1494
1495 tx_ring->producer = producer;
1496 barrier();
1497}
1498
1499static int
1500qlcnic_map_tx_skb(struct pci_dev *pdev,
1501 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
1502{
1503 struct qlcnic_skb_frag *nf;
1504 struct skb_frag_struct *frag;
1505 int i, nr_frags;
1506 dma_addr_t map;
1507
1508 nr_frags = skb_shinfo(skb)->nr_frags;
1509 nf = &pbuf->frag_array[0];
1510
1511 map = pci_map_single(pdev, skb->data,
1512 skb_headlen(skb), PCI_DMA_TODEVICE);
1513 if (pci_dma_mapping_error(pdev, map))
1514 goto out_err;
1515
1516 nf->dma = map;
1517 nf->length = skb_headlen(skb);
1518
1519 for (i = 0; i < nr_frags; i++) {
1520 frag = &skb_shinfo(skb)->frags[i];
1521 nf = &pbuf->frag_array[i+1];
1522
1523 map = pci_map_page(pdev, frag->page, frag->page_offset,
1524 frag->size, PCI_DMA_TODEVICE);
1525 if (pci_dma_mapping_error(pdev, map))
1526 goto unwind;
1527
1528 nf->dma = map;
1529 nf->length = frag->size;
1530 }
1531
1532 return 0;
1533
1534unwind:
1535 while (--i >= 0) {
1536 nf = &pbuf->frag_array[i+1];
1537 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1538 }
1539
1540 nf = &pbuf->frag_array[0];
1541 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1542
1543out_err:
1544 return -ENOMEM;
1545}
1546
1547static inline void
1548qlcnic_clear_cmddesc(u64 *desc)
1549{
1550 desc[0] = 0ULL;
1551 desc[2] = 0ULL;
1552}
1553
1554netdev_tx_t
1555qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1556{
1557 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1558 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
1559 struct qlcnic_cmd_buffer *pbuf;
1560 struct qlcnic_skb_frag *buffrag;
1561 struct cmd_desc_type0 *hwdesc, *first_desc;
1562 struct pci_dev *pdev;
1563 int i, k;
1564
1565 u32 producer;
1566 int frag_count, no_of_desc;
1567 u32 num_txd = tx_ring->num_desc;
1568
1569 frag_count = skb_shinfo(skb)->nr_frags + 1;
1570
1571 /* 4 fragments per cmd des */
1572 no_of_desc = (frag_count + 3) >> 2;
1573
1574 if (unlikely(no_of_desc + 2 > qlcnic_tx_avail(tx_ring))) {
1575 netif_stop_queue(netdev);
1576 return NETDEV_TX_BUSY;
1577 }
1578
1579 producer = tx_ring->producer;
1580 pbuf = &tx_ring->cmd_buf_arr[producer];
1581
1582 pdev = adapter->pdev;
1583
1584 if (qlcnic_map_tx_skb(pdev, skb, pbuf))
1585 goto drop_packet;
1586
1587 pbuf->skb = skb;
1588 pbuf->frag_count = frag_count;
1589
1590 first_desc = hwdesc = &tx_ring->desc_head[producer];
1591 qlcnic_clear_cmddesc((u64 *)hwdesc);
1592
1593 qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
1594 qlcnic_set_tx_port(first_desc, adapter->portnum);
1595
1596 for (i = 0; i < frag_count; i++) {
1597
1598 k = i % 4;
1599
1600 if ((k == 0) && (i > 0)) {
1601 /* move to next desc.*/
1602 producer = get_next_index(producer, num_txd);
1603 hwdesc = &tx_ring->desc_head[producer];
1604 qlcnic_clear_cmddesc((u64 *)hwdesc);
1605 tx_ring->cmd_buf_arr[producer].skb = NULL;
1606 }
1607
1608 buffrag = &pbuf->frag_array[i];
1609
1610 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
1611 switch (k) {
1612 case 0:
1613 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1614 break;
1615 case 1:
1616 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
1617 break;
1618 case 2:
1619 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
1620 break;
1621 case 3:
1622 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
1623 break;
1624 }
1625 }
1626
1627 tx_ring->producer = get_next_index(producer, num_txd);
1628
1629 qlcnic_tso_check(netdev, tx_ring, first_desc, skb);
1630
1631 qlcnic_update_cmd_producer(adapter, tx_ring);
1632
1633 adapter->stats.txbytes += skb->len;
1634 adapter->stats.xmitcalled++;
1635
1636 return NETDEV_TX_OK;
1637
1638drop_packet:
1639 adapter->stats.txdropped++;
1640 dev_kfree_skb_any(skb);
1641 return NETDEV_TX_OK;
1642}
1643
1644static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
1645{
1646 struct net_device *netdev = adapter->netdev;
1647 u32 temp, temp_state, temp_val;
1648 int rv = 0;
1649
1650 temp = QLCRD32(adapter, CRB_TEMP_STATE);
1651
1652 temp_state = qlcnic_get_temp_state(temp);
1653 temp_val = qlcnic_get_temp_val(temp);
1654
1655 if (temp_state == QLCNIC_TEMP_PANIC) {
1656 dev_err(&netdev->dev,
1657 "Device temperature %d degrees C exceeds"
1658 " maximum allowed. Hardware has been shut down.\n",
1659 temp_val);
1660 rv = 1;
1661 } else if (temp_state == QLCNIC_TEMP_WARN) {
1662 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
1663 dev_err(&netdev->dev,
1664 "Device temperature %d degrees C "
1665 "exceeds operating range."
1666 " Immediate action needed.\n",
1667 temp_val);
1668 }
1669 } else {
1670 if (adapter->temp == QLCNIC_TEMP_WARN) {
1671 dev_info(&netdev->dev,
1672 "Device temperature is now %d degrees C"
1673 " in normal range.\n", temp_val);
1674 }
1675 }
1676 adapter->temp = temp_state;
1677 return rv;
1678}
1679
1680void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
1681{
1682 struct net_device *netdev = adapter->netdev;
1683
1684 if (adapter->ahw.linkup && !linkup) {
1685 dev_info(&netdev->dev, "NIC Link is down\n");
1686 adapter->ahw.linkup = 0;
1687 if (netif_running(netdev)) {
1688 netif_carrier_off(netdev);
1689 netif_stop_queue(netdev);
1690 }
1691 } else if (!adapter->ahw.linkup && linkup) {
1692 dev_info(&netdev->dev, "NIC Link is up\n");
1693 adapter->ahw.linkup = 1;
1694 if (netif_running(netdev)) {
1695 netif_carrier_on(netdev);
1696 netif_wake_queue(netdev);
1697 }
1698 }
1699}
1700
1701static void qlcnic_tx_timeout(struct net_device *netdev)
1702{
1703 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1704
1705 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
1706 return;
1707
1708 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
1709 schedule_work(&adapter->tx_timeout_task);
1710}
1711
1712static void qlcnic_tx_timeout_task(struct work_struct *work)
1713{
1714 struct qlcnic_adapter *adapter =
1715 container_of(work, struct qlcnic_adapter, tx_timeout_task);
1716
1717 if (!netif_running(adapter->netdev))
1718 return;
1719
1720 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1721 return;
1722
1723 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
1724 goto request_reset;
1725
1726 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1727 if (!qlcnic_reset_context(adapter)) {
1728 adapter->netdev->trans_start = jiffies;
1729 return;
1730
1731 /* context reset failed, fall through for fw reset */
1732 }
1733
1734request_reset:
1735 adapter->need_fw_reset = 1;
1736 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1737}
1738
1739static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
1740{
1741 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1742 struct net_device_stats *stats = &netdev->stats;
1743
1744 memset(stats, 0, sizeof(*stats));
1745
1746 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
1747 stats->tx_packets = adapter->stats.xmitfinished;
1748 stats->rx_bytes = adapter->stats.rxbytes;
1749 stats->tx_bytes = adapter->stats.txbytes;
1750 stats->rx_dropped = adapter->stats.rxdropped;
1751 stats->tx_dropped = adapter->stats.txdropped;
1752
1753 return stats;
1754}
1755
1756static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
1757{
1758 u32 status;
1759
1760 status = readl(adapter->isr_int_vec);
1761
1762 if (!(status & adapter->int_vec_bit))
1763 return IRQ_NONE;
1764
1765 /* check interrupt state machine, to be sure */
1766 status = readl(adapter->crb_int_state_reg);
1767 if (!ISR_LEGACY_INT_TRIGGERED(status))
1768 return IRQ_NONE;
1769
1770 writel(0xffffffff, adapter->tgt_status_reg);
1771 /* read twice to ensure write is flushed */
1772 readl(adapter->isr_int_vec);
1773 readl(adapter->isr_int_vec);
1774
1775 return IRQ_HANDLED;
1776}
1777
1778static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
1779{
1780 struct qlcnic_host_sds_ring *sds_ring = data;
1781 struct qlcnic_adapter *adapter = sds_ring->adapter;
1782
1783 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1784 goto done;
1785 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
1786 writel(0xffffffff, adapter->tgt_status_reg);
1787 goto done;
1788 }
1789
1790 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
1791 return IRQ_NONE;
1792
1793done:
1794 adapter->diag_cnt++;
1795 qlcnic_enable_int(sds_ring);
1796 return IRQ_HANDLED;
1797}
1798
1799static irqreturn_t qlcnic_intr(int irq, void *data)
1800{
1801 struct qlcnic_host_sds_ring *sds_ring = data;
1802 struct qlcnic_adapter *adapter = sds_ring->adapter;
1803
1804 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
1805 return IRQ_NONE;
1806
1807 napi_schedule(&sds_ring->napi);
1808
1809 return IRQ_HANDLED;
1810}
1811
1812static irqreturn_t qlcnic_msi_intr(int irq, void *data)
1813{
1814 struct qlcnic_host_sds_ring *sds_ring = data;
1815 struct qlcnic_adapter *adapter = sds_ring->adapter;
1816
1817 /* clear interrupt */
1818 writel(0xffffffff, adapter->tgt_status_reg);
1819
1820 napi_schedule(&sds_ring->napi);
1821 return IRQ_HANDLED;
1822}
1823
1824static irqreturn_t qlcnic_msix_intr(int irq, void *data)
1825{
1826 struct qlcnic_host_sds_ring *sds_ring = data;
1827
1828 napi_schedule(&sds_ring->napi);
1829 return IRQ_HANDLED;
1830}
1831
1832static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
1833{
1834 u32 sw_consumer, hw_consumer;
1835 int count = 0, i;
1836 struct qlcnic_cmd_buffer *buffer;
1837 struct pci_dev *pdev = adapter->pdev;
1838 struct net_device *netdev = adapter->netdev;
1839 struct qlcnic_skb_frag *frag;
1840 int done;
1841 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
1842
1843 if (!spin_trylock(&adapter->tx_clean_lock))
1844 return 1;
1845
1846 sw_consumer = tx_ring->sw_consumer;
1847 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1848
1849 while (sw_consumer != hw_consumer) {
1850 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
1851 if (buffer->skb) {
1852 frag = &buffer->frag_array[0];
1853 pci_unmap_single(pdev, frag->dma, frag->length,
1854 PCI_DMA_TODEVICE);
1855 frag->dma = 0ULL;
1856 for (i = 1; i < buffer->frag_count; i++) {
1857 frag++;
1858 pci_unmap_page(pdev, frag->dma, frag->length,
1859 PCI_DMA_TODEVICE);
1860 frag->dma = 0ULL;
1861 }
1862
1863 adapter->stats.xmitfinished++;
1864 dev_kfree_skb_any(buffer->skb);
1865 buffer->skb = NULL;
1866 }
1867
1868 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
1869 if (++count >= MAX_STATUS_HANDLE)
1870 break;
1871 }
1872
1873 if (count && netif_running(netdev)) {
1874 tx_ring->sw_consumer = sw_consumer;
1875
1876 smp_mb();
1877
1878 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
1879 __netif_tx_lock(tx_ring->txq, smp_processor_id());
1880 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
1881 netif_wake_queue(netdev);
1882 adapter->tx_timeo_cnt = 0;
1883 }
1884 __netif_tx_unlock(tx_ring->txq);
1885 }
1886 }
1887 /*
1888 * If everything is freed up to consumer then check if the ring is full
1889 * If the ring is full then check if more needs to be freed and
1890 * schedule the call back again.
1891 *
1892 * This happens when there are 2 CPUs. One could be freeing and the
1893 * other filling it. If the ring is full when we get out of here and
1894 * the card has already interrupted the host then the host can miss the
1895 * interrupt.
1896 *
1897 * There is still a possible race condition and the host could miss an
1898 * interrupt. The card has to take care of this.
1899 */
1900 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1901 done = (sw_consumer == hw_consumer);
1902 spin_unlock(&adapter->tx_clean_lock);
1903
1904 return done;
1905}
1906
1907static int qlcnic_poll(struct napi_struct *napi, int budget)
1908{
1909 struct qlcnic_host_sds_ring *sds_ring =
1910 container_of(napi, struct qlcnic_host_sds_ring, napi);
1911
1912 struct qlcnic_adapter *adapter = sds_ring->adapter;
1913
1914 int tx_complete;
1915 int work_done;
1916
1917 tx_complete = qlcnic_process_cmd_ring(adapter);
1918
1919 work_done = qlcnic_process_rcv_ring(sds_ring, budget);
1920
1921 if ((work_done < budget) && tx_complete) {
1922 napi_complete(&sds_ring->napi);
1923 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1924 qlcnic_enable_int(sds_ring);
1925 }
1926
1927 return work_done;
1928}
1929
1930#ifdef CONFIG_NET_POLL_CONTROLLER
1931static void qlcnic_poll_controller(struct net_device *netdev)
1932{
1933 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1934 disable_irq(adapter->irq);
1935 qlcnic_intr(adapter->irq, adapter);
1936 enable_irq(adapter->irq);
1937}
1938#endif
1939
1940static void
1941qlcnic_set_drv_state(struct qlcnic_adapter *adapter, int state)
1942{
1943 u32 val;
1944
1945 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
1946 state != QLCNIC_DEV_NEED_QUISCENT);
1947
1948 if (qlcnic_api_lock(adapter))
1949 return ;
1950
1951 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
1952
1953 if (state == QLCNIC_DEV_NEED_RESET)
1954 val |= ((u32)0x1 << (adapter->portnum * 4));
1955 else if (state == QLCNIC_DEV_NEED_QUISCENT)
1956 val |= ((u32)0x1 << ((adapter->portnum * 4) + 1));
1957
1958 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
1959
1960 qlcnic_api_unlock(adapter);
1961}
1962
1963static int
1964qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
1965{
1966 u32 val;
1967
1968 if (qlcnic_api_lock(adapter))
1969 return -EBUSY;
1970
1971 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
1972 val &= ~((u32)0x3 << (adapter->portnum * 4));
1973 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
1974
1975 qlcnic_api_unlock(adapter);
1976
1977 return 0;
1978}
1979
1980static void
1981qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter)
1982{
1983 u32 val;
1984
1985 if (qlcnic_api_lock(adapter))
1986 goto err;
1987
1988 val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
1989 val &= ~((u32)0x1 << (adapter->portnum * 4));
1990 QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val);
1991
1992 if (!(val & 0x11111111))
1993 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
1994
1995 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
1996 val &= ~((u32)0x3 << (adapter->portnum * 4));
1997 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
1998
1999 qlcnic_api_unlock(adapter);
2000err:
2001 adapter->fw_fail_cnt = 0;
2002 clear_bit(__QLCNIC_START_FW, &adapter->state);
2003 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2004}
2005
2006static int
2007qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2008{
2009 int act, state;
2010
2011 state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2012 act = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
2013
2014 if (((state & 0x11111111) == (act & 0x11111111)) ||
2015 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2016 return 0;
2017 else
2018 return 1;
2019}
2020
2021static int
2022qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2023{
2024 u32 val, prev_state;
2025 int cnt = 0;
2026 int portnum = adapter->portnum;
2027
2028 if (qlcnic_api_lock(adapter))
2029 return -1;
2030
2031 val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
2032 if (!(val & ((int)0x1 << (portnum * 4)))) {
2033 val |= ((u32)0x1 << (portnum * 4));
2034 QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val);
2035 } else if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state)) {
2036 goto start_fw;
2037 }
2038
2039 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2040
2041 switch (prev_state) {
2042 case QLCNIC_DEV_COLD:
2043start_fw:
2044 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITALIZING);
2045 qlcnic_api_unlock(adapter);
2046 return 1;
2047
2048 case QLCNIC_DEV_READY:
2049 qlcnic_api_unlock(adapter);
2050 return 0;
2051
2052 case QLCNIC_DEV_NEED_RESET:
2053 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2054 val |= ((u32)0x1 << (portnum * 4));
2055 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2056 break;
2057
2058 case QLCNIC_DEV_NEED_QUISCENT:
2059 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2060 val |= ((u32)0x1 << ((portnum * 4) + 1));
2061 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2062 break;
2063
2064 case QLCNIC_DEV_FAILED:
2065 qlcnic_api_unlock(adapter);
2066 return -1;
2067 }
2068
2069 qlcnic_api_unlock(adapter);
2070 msleep(1000);
2071 while ((QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) != QLCNIC_DEV_READY) &&
2072 ++cnt < 20)
2073 msleep(1000);
2074
2075 if (cnt >= 20)
2076 return -1;
2077
2078 if (qlcnic_api_lock(adapter))
2079 return -1;
2080
2081 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2082 val &= ~((u32)0x3 << (portnum * 4));
2083 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2084
2085 qlcnic_api_unlock(adapter);
2086
2087 return 0;
2088}
2089
2090static void
2091qlcnic_fwinit_work(struct work_struct *work)
2092{
2093 struct qlcnic_adapter *adapter = container_of(work,
2094 struct qlcnic_adapter, fw_work.work);
2095 int dev_state;
2096
2097 if (++adapter->fw_wait_cnt > FW_POLL_THRESH)
2098 goto err_ret;
2099
2100 if (test_bit(__QLCNIC_START_FW, &adapter->state)) {
2101
2102 if (qlcnic_check_drv_state(adapter)) {
2103 qlcnic_schedule_work(adapter,
2104 qlcnic_fwinit_work, FW_POLL_DELAY);
2105 return;
2106 }
2107
2108 if (!qlcnic_start_firmware(adapter)) {
2109 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2110 return;
2111 }
2112
2113 goto err_ret;
2114 }
2115
2116 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2117 switch (dev_state) {
2118 case QLCNIC_DEV_READY:
2119 if (!qlcnic_start_firmware(adapter)) {
2120 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2121 return;
2122 }
2123 case QLCNIC_DEV_FAILED:
2124 break;
2125
2126 default:
2127 qlcnic_schedule_work(adapter,
2128 qlcnic_fwinit_work, 2 * FW_POLL_DELAY);
2129 return;
2130 }
2131
2132err_ret:
2133 qlcnic_clr_all_drv_state(adapter);
2134}
2135
2136static void
2137qlcnic_detach_work(struct work_struct *work)
2138{
2139 struct qlcnic_adapter *adapter = container_of(work,
2140 struct qlcnic_adapter, fw_work.work);
2141 struct net_device *netdev = adapter->netdev;
2142 u32 status;
2143
2144 netif_device_detach(netdev);
2145
2146 qlcnic_down(adapter, netdev);
2147
2148 rtnl_lock();
2149 qlcnic_detach(adapter);
2150 rtnl_unlock();
2151
2152 status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2153
2154 if (status & QLCNIC_RCODE_FATAL_ERROR)
2155 goto err_ret;
2156
2157 if (adapter->temp == QLCNIC_TEMP_PANIC)
2158 goto err_ret;
2159
2160 qlcnic_set_drv_state(adapter, adapter->dev_state);
2161
2162 adapter->fw_wait_cnt = 0;
2163
2164 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2165
2166 return;
2167
2168err_ret:
2169 qlcnic_clr_all_drv_state(adapter);
2170
2171}
2172
2173static void
2174qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
2175{
2176 u32 state;
2177
2178 if (qlcnic_api_lock(adapter))
2179 return;
2180
2181 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2182
2183 if (state != QLCNIC_DEV_INITALIZING && state != QLCNIC_DEV_NEED_RESET) {
2184 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
2185 set_bit(__QLCNIC_START_FW, &adapter->state);
2186 }
2187
2188 qlcnic_api_unlock(adapter);
2189}
2190
2191static void
2192qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2193 work_func_t func, int delay)
2194{
2195 INIT_DELAYED_WORK(&adapter->fw_work, func);
2196 schedule_delayed_work(&adapter->fw_work, round_jiffies_relative(delay));
2197}
2198
2199static void
2200qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
2201{
2202 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2203 msleep(10);
2204
2205 cancel_delayed_work_sync(&adapter->fw_work);
2206}
2207
2208static void
2209qlcnic_attach_work(struct work_struct *work)
2210{
2211 struct qlcnic_adapter *adapter = container_of(work,
2212 struct qlcnic_adapter, fw_work.work);
2213 struct net_device *netdev = adapter->netdev;
2214 int err;
2215
2216 if (netif_running(netdev)) {
2217 err = qlcnic_attach(adapter);
2218 if (err)
2219 goto done;
2220
2221 err = qlcnic_up(adapter, netdev);
2222 if (err) {
2223 qlcnic_detach(adapter);
2224 goto done;
2225 }
2226
2227 qlcnic_config_indev_addr(netdev, NETDEV_UP);
2228 }
2229
2230 netif_device_attach(netdev);
2231
2232done:
2233 adapter->fw_fail_cnt = 0;
2234 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2235
2236 if (!qlcnic_clr_drv_state(adapter))
2237 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2238 FW_POLL_DELAY);
2239}
2240
2241static int
2242qlcnic_check_health(struct qlcnic_adapter *adapter)
2243{
2244 u32 state = 0, heartbit;
2245 struct net_device *netdev = adapter->netdev;
2246
2247 if (qlcnic_check_temp(adapter))
2248 goto detach;
2249
2250 if (adapter->need_fw_reset) {
2251 qlcnic_dev_request_reset(adapter);
2252 goto detach;
2253 }
2254
2255 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2256 if (state == QLCNIC_DEV_NEED_RESET || state == QLCNIC_DEV_NEED_QUISCENT)
2257 adapter->need_fw_reset = 1;
2258
2259 heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2260 if (heartbit != adapter->heartbit) {
2261 adapter->heartbit = heartbit;
2262 adapter->fw_fail_cnt = 0;
2263 if (adapter->need_fw_reset)
2264 goto detach;
2265 return 0;
2266 }
2267
2268 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2269 return 0;
2270
2271 qlcnic_dev_request_reset(adapter);
2272
2273 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2274
2275 dev_info(&netdev->dev, "firmware hang detected\n");
2276
2277detach:
2278 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
2279 QLCNIC_DEV_NEED_RESET;
2280
2281 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2282 !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2283 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
2284
2285 return 1;
2286}
2287
2288static void
2289qlcnic_fw_poll_work(struct work_struct *work)
2290{
2291 struct qlcnic_adapter *adapter = container_of(work,
2292 struct qlcnic_adapter, fw_work.work);
2293
2294 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2295 goto reschedule;
2296
2297
2298 if (qlcnic_check_health(adapter))
2299 return;
2300
2301reschedule:
2302 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2303}
2304
2305static ssize_t
2306qlcnic_store_bridged_mode(struct device *dev,
2307 struct device_attribute *attr, const char *buf, size_t len)
2308{
2309 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2310 unsigned long new;
2311 int ret = -EINVAL;
2312
2313 if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
2314 goto err_out;
2315
2316 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2317 goto err_out;
2318
2319 if (strict_strtoul(buf, 2, &new))
2320 goto err_out;
2321
2322 if (!qlcnic_config_bridged_mode(adapter, !!new))
2323 ret = len;
2324
2325err_out:
2326 return ret;
2327}
2328
2329static ssize_t
2330qlcnic_show_bridged_mode(struct device *dev,
2331 struct device_attribute *attr, char *buf)
2332{
2333 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2334 int bridged_mode = 0;
2335
2336 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
2337 bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
2338
2339 return sprintf(buf, "%d\n", bridged_mode);
2340}
2341
2342static struct device_attribute dev_attr_bridged_mode = {
2343 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2344 .show = qlcnic_show_bridged_mode,
2345 .store = qlcnic_store_bridged_mode,
2346};
2347
2348static ssize_t
2349qlcnic_store_diag_mode(struct device *dev,
2350 struct device_attribute *attr, const char *buf, size_t len)
2351{
2352 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2353 unsigned long new;
2354
2355 if (strict_strtoul(buf, 2, &new))
2356 return -EINVAL;
2357
2358 if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
2359 adapter->flags ^= QLCNIC_DIAG_ENABLED;
2360
2361 return len;
2362}
2363
2364static ssize_t
2365qlcnic_show_diag_mode(struct device *dev,
2366 struct device_attribute *attr, char *buf)
2367{
2368 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2369
2370 return sprintf(buf, "%d\n",
2371 !!(adapter->flags & QLCNIC_DIAG_ENABLED));
2372}
2373
2374static struct device_attribute dev_attr_diag_mode = {
2375 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2376 .show = qlcnic_show_diag_mode,
2377 .store = qlcnic_store_diag_mode,
2378};
2379
2380static int
2381qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
2382 loff_t offset, size_t size)
2383{
2384 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
2385 return -EIO;
2386
2387 if ((size != 4) || (offset & 0x3))
2388 return -EINVAL;
2389
2390 if (offset < QLCNIC_PCI_CRBSPACE)
2391 return -EINVAL;
2392
2393 return 0;
2394}
2395
2396static ssize_t
2397qlcnic_sysfs_read_crb(struct kobject *kobj, struct bin_attribute *attr,
2398 char *buf, loff_t offset, size_t size)
2399{
2400 struct device *dev = container_of(kobj, struct device, kobj);
2401 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2402 u32 data;
2403 int ret;
2404
2405 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
2406 if (ret != 0)
2407 return ret;
2408
2409 data = QLCRD32(adapter, offset);
2410 memcpy(buf, &data, size);
2411 return size;
2412}
2413
2414static ssize_t
2415qlcnic_sysfs_write_crb(struct kobject *kobj, struct bin_attribute *attr,
2416 char *buf, loff_t offset, size_t size)
2417{
2418 struct device *dev = container_of(kobj, struct device, kobj);
2419 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2420 u32 data;
2421 int ret;
2422
2423 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
2424 if (ret != 0)
2425 return ret;
2426
2427 memcpy(&data, buf, size);
2428 QLCWR32(adapter, offset, data);
2429 return size;
2430}
2431
2432static int
2433qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
2434 loff_t offset, size_t size)
2435{
2436 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
2437 return -EIO;
2438
2439 if ((size != 8) || (offset & 0x7))
2440 return -EIO;
2441
2442 return 0;
2443}
2444
2445static ssize_t
2446qlcnic_sysfs_read_mem(struct kobject *kobj, struct bin_attribute *attr,
2447 char *buf, loff_t offset, size_t size)
2448{
2449 struct device *dev = container_of(kobj, struct device, kobj);
2450 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2451 u64 data;
2452 int ret;
2453
2454 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
2455 if (ret != 0)
2456 return ret;
2457
2458 if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
2459 return -EIO;
2460
2461 memcpy(buf, &data, size);
2462
2463 return size;
2464}
2465
2466static ssize_t
2467qlcnic_sysfs_write_mem(struct kobject *kobj, struct bin_attribute *attr,
2468 char *buf, loff_t offset, size_t size)
2469{
2470 struct device *dev = container_of(kobj, struct device, kobj);
2471 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2472 u64 data;
2473 int ret;
2474
2475 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
2476 if (ret != 0)
2477 return ret;
2478
2479 memcpy(&data, buf, size);
2480
2481 if (qlcnic_pci_mem_write_2M(adapter, offset, data))
2482 return -EIO;
2483
2484 return size;
2485}
2486
2487
2488static struct bin_attribute bin_attr_crb = {
2489 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2490 .size = 0,
2491 .read = qlcnic_sysfs_read_crb,
2492 .write = qlcnic_sysfs_write_crb,
2493};
2494
2495static struct bin_attribute bin_attr_mem = {
2496 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2497 .size = 0,
2498 .read = qlcnic_sysfs_read_mem,
2499 .write = qlcnic_sysfs_write_mem,
2500};
2501
2502static void
2503qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
2504{
2505 struct device *dev = &adapter->pdev->dev;
2506
2507 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
2508 if (device_create_file(dev, &dev_attr_bridged_mode))
2509 dev_warn(dev,
2510 "failed to create bridged_mode sysfs entry\n");
2511}
2512
2513static void
2514qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
2515{
2516 struct device *dev = &adapter->pdev->dev;
2517
2518 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
2519 device_remove_file(dev, &dev_attr_bridged_mode);
2520}
2521
2522static void
2523qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
2524{
2525 struct device *dev = &adapter->pdev->dev;
2526
2527 if (device_create_file(dev, &dev_attr_diag_mode))
2528 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2529 if (device_create_bin_file(dev, &bin_attr_crb))
2530 dev_info(dev, "failed to create crb sysfs entry\n");
2531 if (device_create_bin_file(dev, &bin_attr_mem))
2532 dev_info(dev, "failed to create mem sysfs entry\n");
2533}
2534
2535
2536static void
2537qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
2538{
2539 struct device *dev = &adapter->pdev->dev;
2540
2541 device_remove_file(dev, &dev_attr_diag_mode);
2542 device_remove_bin_file(dev, &bin_attr_crb);
2543 device_remove_bin_file(dev, &bin_attr_mem);
2544}
2545
2546#ifdef CONFIG_INET
2547
2548#define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
2549
2550static int
2551qlcnic_destip_supported(struct qlcnic_adapter *adapter)
2552{
2553 if (adapter->ahw.cut_through)
2554 return 0;
2555
2556 return 1;
2557}
2558
2559static void
2560qlcnic_config_indev_addr(struct net_device *dev, unsigned long event)
2561{
2562 struct in_device *indev;
2563 struct qlcnic_adapter *adapter = netdev_priv(dev);
2564
2565 if (!qlcnic_destip_supported(adapter))
2566 return;
2567
2568 indev = in_dev_get(dev);
2569 if (!indev)
2570 return;
2571
2572 for_ifa(indev) {
2573 switch (event) {
2574 case NETDEV_UP:
2575 qlcnic_config_ipaddr(adapter,
2576 ifa->ifa_address, QLCNIC_IP_UP);
2577 break;
2578 case NETDEV_DOWN:
2579 qlcnic_config_ipaddr(adapter,
2580 ifa->ifa_address, QLCNIC_IP_DOWN);
2581 break;
2582 default:
2583 break;
2584 }
2585 } endfor_ifa(indev);
2586
2587 in_dev_put(indev);
2588 return;
2589}
2590
2591static int qlcnic_netdev_event(struct notifier_block *this,
2592 unsigned long event, void *ptr)
2593{
2594 struct qlcnic_adapter *adapter;
2595 struct net_device *dev = (struct net_device *)ptr;
2596
2597recheck:
2598 if (dev == NULL)
2599 goto done;
2600
2601 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2602 dev = vlan_dev_real_dev(dev);
2603 goto recheck;
2604 }
2605
2606 if (!is_qlcnic_netdev(dev))
2607 goto done;
2608
2609 adapter = netdev_priv(dev);
2610
2611 if (!adapter)
2612 goto done;
2613
2614 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2615 goto done;
2616
2617 qlcnic_config_indev_addr(dev, event);
2618done:
2619 return NOTIFY_DONE;
2620}
2621
2622static int
2623qlcnic_inetaddr_event(struct notifier_block *this,
2624 unsigned long event, void *ptr)
2625{
2626 struct qlcnic_adapter *adapter;
2627 struct net_device *dev;
2628
2629 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2630
2631 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2632
2633recheck:
2634 if (dev == NULL || !netif_running(dev))
2635 goto done;
2636
2637 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2638 dev = vlan_dev_real_dev(dev);
2639 goto recheck;
2640 }
2641
2642 if (!is_qlcnic_netdev(dev))
2643 goto done;
2644
2645 adapter = netdev_priv(dev);
2646
2647 if (!adapter || !qlcnic_destip_supported(adapter))
2648 goto done;
2649
2650 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2651 goto done;
2652
2653 switch (event) {
2654 case NETDEV_UP:
2655 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
2656 break;
2657 case NETDEV_DOWN:
2658 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
2659 break;
2660 default:
2661 break;
2662 }
2663
2664done:
2665 return NOTIFY_DONE;
2666}
2667
2668static struct notifier_block qlcnic_netdev_cb = {
2669 .notifier_call = qlcnic_netdev_event,
2670};
2671
2672static struct notifier_block qlcnic_inetaddr_cb = {
2673 .notifier_call = qlcnic_inetaddr_event,
2674};
2675#else
2676static void
2677qlcnic_config_indev_addr(struct net_device *dev, unsigned long event)
2678{ }
2679#endif
2680
2681static struct pci_driver qlcnic_driver = {
2682 .name = qlcnic_driver_name,
2683 .id_table = qlcnic_pci_tbl,
2684 .probe = qlcnic_probe,
2685 .remove = __devexit_p(qlcnic_remove),
2686#ifdef CONFIG_PM
2687 .suspend = qlcnic_suspend,
2688 .resume = qlcnic_resume,
2689#endif
2690 .shutdown = qlcnic_shutdown
2691};
2692
2693static int __init qlcnic_init_module(void)
2694{
2695
2696 printk(KERN_INFO "%s\n", qlcnic_driver_string);
2697
2698#ifdef CONFIG_INET
2699 register_netdevice_notifier(&qlcnic_netdev_cb);
2700 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
2701#endif
2702
2703
2704 return pci_register_driver(&qlcnic_driver);
2705}
2706
2707module_init(qlcnic_init_module);
2708
2709static void __exit qlcnic_exit_module(void)
2710{
2711
2712 pci_unregister_driver(&qlcnic_driver);
2713
2714#ifdef CONFIG_INET
2715 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
2716 unregister_netdevice_notifier(&qlcnic_netdev_cb);
2717#endif
2718}
2719
2720module_exit(qlcnic_exit_module);
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-06 10:22:27 -0500