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qlcnic: fix onchip memory access
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / net / qlcnic / qlcnic_main.c
CommitLineData
af19b491
AKS		 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);
af19b491
AKS		 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
7eb9855d 89static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
af19b491
AKS		 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
6a902881 104static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
af19b491
AKS		 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();
8bfe8b91 121 adapter->stats.xmit_off++;
af19b491
AKS		 122 }
123}
124
125static const u32 msi_tgt_status[8] = {
126 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
127 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
128 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
129 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
130};
131
132static const
133struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
134
135static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring)
136{
137 writel(0, sds_ring->crb_intr_mask);
138}
139
140static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
141{
142 struct qlcnic_adapter *adapter = sds_ring->adapter;
143
144 writel(0x1, sds_ring->crb_intr_mask);
145
146 if (!QLCNIC_IS_MSI_FAMILY(adapter))
147 writel(0xfbff, adapter->tgt_mask_reg);
148}
149
150static int
151qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
152{
153 int size = sizeof(struct qlcnic_host_sds_ring) * count;
154
155 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
156
157 return (recv_ctx->sds_rings == NULL);
158}
159
160static void
161qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
162{
163 if (recv_ctx->sds_rings != NULL)
164 kfree(recv_ctx->sds_rings);
165
166 recv_ctx->sds_rings = NULL;
167}
168
169static int
170qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev)
171{
172 int ring;
173 struct qlcnic_host_sds_ring *sds_ring;
174 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
175
176 if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
177 return -ENOMEM;
178
179 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
180 sds_ring = &recv_ctx->sds_rings[ring];
181 netif_napi_add(netdev, &sds_ring->napi,
182 qlcnic_poll, QLCNIC_NETDEV_WEIGHT);
183 }
184
185 return 0;
186}
187
188static void
189qlcnic_napi_del(struct qlcnic_adapter *adapter)
190{
191 int ring;
192 struct qlcnic_host_sds_ring *sds_ring;
193 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
194
195 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
196 sds_ring = &recv_ctx->sds_rings[ring];
197 netif_napi_del(&sds_ring->napi);
198 }
199
200 qlcnic_free_sds_rings(&adapter->recv_ctx);
201}
202
203static void
204qlcnic_napi_enable(struct qlcnic_adapter *adapter)
205{
206 int ring;
207 struct qlcnic_host_sds_ring *sds_ring;
208 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
209
210 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
211 sds_ring = &recv_ctx->sds_rings[ring];
212 napi_enable(&sds_ring->napi);
213 qlcnic_enable_int(sds_ring);
214 }
215}
216
217static void
218qlcnic_napi_disable(struct qlcnic_adapter *adapter)
219{
220 int ring;
221 struct qlcnic_host_sds_ring *sds_ring;
222 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
223
224 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
225 sds_ring = &recv_ctx->sds_rings[ring];
226 qlcnic_disable_int(sds_ring);
227 napi_synchronize(&sds_ring->napi);
228 napi_disable(&sds_ring->napi);
229 }
230}
231
232static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
233{
234 memset(&adapter->stats, 0, sizeof(adapter->stats));
235 return;
236}
237
238static int qlcnic_set_dma_mask(struct qlcnic_adapter *adapter)
239{
240 struct pci_dev *pdev = adapter->pdev;
241 u64 mask, cmask;
242
243 adapter->pci_using_dac = 0;
244
245 mask = DMA_BIT_MASK(39);
246 cmask = mask;
247
248 if (pci_set_dma_mask(pdev, mask) == 0 &&
249 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
250 adapter->pci_using_dac = 1;
251 return 0;
252 }
253
254 return -EIO;
255}
256
257/* Update addressable range if firmware supports it */
258static int
259qlcnic_update_dma_mask(struct qlcnic_adapter *adapter)
260{
261 int change, shift, err;
262 u64 mask, old_mask, old_cmask;
263 struct pci_dev *pdev = adapter->pdev;
264
265 change = 0;
266
267 shift = QLCRD32(adapter, CRB_DMA_SHIFT);
268 if (shift > 32)
269 return 0;
270
271 if (shift > 9)
272 change = 1;
273
274 if (change) {
275 old_mask = pdev->dma_mask;
276 old_cmask = pdev->dev.coherent_dma_mask;
277
278 mask = DMA_BIT_MASK(32+shift);
279
280 err = pci_set_dma_mask(pdev, mask);
281 if (err)
282 goto err_out;
283
284 err = pci_set_consistent_dma_mask(pdev, mask);
285 if (err)
286 goto err_out;
287 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
288 }
289
290 return 0;
291
292err_out:
293 pci_set_dma_mask(pdev, old_mask);
294 pci_set_consistent_dma_mask(pdev, old_cmask);
295 return err;
296}
297
298static void qlcnic_set_port_mode(struct qlcnic_adapter *adapter)
299{
300 u32 val, data;
301
302 val = adapter->ahw.board_type;
303 if ((val == QLCNIC_BRDTYPE_P3_HMEZ) ||
304 (val == QLCNIC_BRDTYPE_P3_XG_LOM)) {
305 if (port_mode == QLCNIC_PORT_MODE_802_3_AP) {
306 data = QLCNIC_PORT_MODE_802_3_AP;
307 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
308 } else if (port_mode == QLCNIC_PORT_MODE_XG) {
309 data = QLCNIC_PORT_MODE_XG;
310 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
311 } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_1G) {
312 data = QLCNIC_PORT_MODE_AUTO_NEG_1G;
313 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
314 } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_XG) {
315 data = QLCNIC_PORT_MODE_AUTO_NEG_XG;
316 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
317 } else {
318 data = QLCNIC_PORT_MODE_AUTO_NEG;
319 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
320 }
321
322 if ((wol_port_mode != QLCNIC_PORT_MODE_802_3_AP) &&
323 (wol_port_mode != QLCNIC_PORT_MODE_XG) &&
324 (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_1G) &&
325 (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_XG)) {
326 wol_port_mode = QLCNIC_PORT_MODE_AUTO_NEG;
327 }
328 QLCWR32(adapter, QLCNIC_WOL_PORT_MODE, wol_port_mode);
329 }
330}
331
332static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
333{
334 u32 control;
335 int pos;
336
337 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
338 if (pos) {
339 pci_read_config_dword(pdev, pos, &control);
340 if (enable)
341 control |= PCI_MSIX_FLAGS_ENABLE;
342 else
343 control = 0;
344 pci_write_config_dword(pdev, pos, control);
345 }
346}
347
348static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
349{
350 int i;
351
352 for (i = 0; i < count; i++)
353 adapter->msix_entries[i].entry = i;
354}
355
356static int
357qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
358{
359 int i;
360 unsigned char *p;
361 u64 mac_addr;
362 struct net_device *netdev = adapter->netdev;
363 struct pci_dev *pdev = adapter->pdev;
364
365 if (qlcnic_get_mac_addr(adapter, &mac_addr) != 0)
366 return -EIO;
367
368 p = (unsigned char *)&mac_addr;
369 for (i = 0; i < 6; i++)
370 netdev->dev_addr[i] = *(p + 5 - i);
371
372 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
373 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
374
375 /* set station address */
376
377 if (!is_valid_ether_addr(netdev->perm_addr))
378 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
379 netdev->dev_addr);
380
381 return 0;
382}
383
384static int qlcnic_set_mac(struct net_device *netdev, void *p)
385{
386 struct qlcnic_adapter *adapter = netdev_priv(netdev);
387 struct sockaddr *addr = p;
388
389 if (!is_valid_ether_addr(addr->sa_data))
390 return -EINVAL;
391
392 if (netif_running(netdev)) {
393 netif_device_detach(netdev);
394 qlcnic_napi_disable(adapter);
395 }
396
397 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
398 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
399 qlcnic_set_multi(adapter->netdev);
400
401 if (netif_running(netdev)) {
402 netif_device_attach(netdev);
403 qlcnic_napi_enable(adapter);
404 }
405 return 0;
406}
407
408static const struct net_device_ops qlcnic_netdev_ops = {
409 .ndo_open = qlcnic_open,
410 .ndo_stop = qlcnic_close,
411 .ndo_start_xmit = qlcnic_xmit_frame,
412 .ndo_get_stats = qlcnic_get_stats,
413 .ndo_validate_addr = eth_validate_addr,
414 .ndo_set_multicast_list = qlcnic_set_multi,
415 .ndo_set_mac_address = qlcnic_set_mac,
416 .ndo_change_mtu = qlcnic_change_mtu,
417 .ndo_tx_timeout = qlcnic_tx_timeout,
418#ifdef CONFIG_NET_POLL_CONTROLLER
419 .ndo_poll_controller = qlcnic_poll_controller,
420#endif
421};
422
423static void
424qlcnic_setup_intr(struct qlcnic_adapter *adapter)
425{
426 const struct qlcnic_legacy_intr_set *legacy_intrp;
427 struct pci_dev *pdev = adapter->pdev;
428 int err, num_msix;
429
430 if (adapter->rss_supported) {
431 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
432 MSIX_ENTRIES_PER_ADAPTER : 2;
433 } else
434 num_msix = 1;
435
436 adapter->max_sds_rings = 1;
437
438 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
439
440 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
441
442 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
443 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
444 legacy_intrp->tgt_status_reg);
445 adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
446 legacy_intrp->tgt_mask_reg);
447 adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
448
449 adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
450 ISR_INT_STATE_REG);
451
452 qlcnic_set_msix_bit(pdev, 0);
453
454 if (adapter->msix_supported) {
455
456 qlcnic_init_msix_entries(adapter, num_msix);
457 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
458 if (err == 0) {
459 adapter->flags |= QLCNIC_MSIX_ENABLED;
460 qlcnic_set_msix_bit(pdev, 1);
461
462 if (adapter->rss_supported)
463 adapter->max_sds_rings = num_msix;
464
465 dev_info(&pdev->dev, "using msi-x interrupts\n");
466 return;
467 }
468
469 if (err > 0)
470 pci_disable_msix(pdev);
471
472 /* fall through for msi */
473 }
474
475 if (use_msi && !pci_enable_msi(pdev)) {
476 adapter->flags |= QLCNIC_MSI_ENABLED;
477 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
478 msi_tgt_status[adapter->ahw.pci_func]);
479 dev_info(&pdev->dev, "using msi interrupts\n");
480 adapter->msix_entries[0].vector = pdev->irq;
481 return;
482 }
483
484 dev_info(&pdev->dev, "using legacy interrupts\n");
485 adapter->msix_entries[0].vector = pdev->irq;
486}
487
488static void
489qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
490{
491 if (adapter->flags & QLCNIC_MSIX_ENABLED)
492 pci_disable_msix(adapter->pdev);
493 if (adapter->flags & QLCNIC_MSI_ENABLED)
494 pci_disable_msi(adapter->pdev);
495}
496
497static void
498qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
499{
500 if (adapter->ahw.pci_base0 != NULL)
501 iounmap(adapter->ahw.pci_base0);
502}
503
504static int
505qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
506{
507 void __iomem *mem_ptr0 = NULL;
508 resource_size_t mem_base;
509 unsigned long mem_len, pci_len0 = 0;
510
511 struct pci_dev *pdev = adapter->pdev;
512 int pci_func = adapter->ahw.pci_func;
513
514 /*
515 * Set the CRB window to invalid. If any register in window 0 is
516 * accessed it should set the window to 0 and then reset it to 1.
517 */
518 adapter->ahw.crb_win = -1;
519 adapter->ahw.ocm_win = -1;
520
521 /* remap phys address */
522 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
523 mem_len = pci_resource_len(pdev, 0);
524
525 if (mem_len == QLCNIC_PCI_2MB_SIZE) {
526
527 mem_ptr0 = pci_ioremap_bar(pdev, 0);
528 if (mem_ptr0 == NULL) {
529 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
530 return -EIO;
531 }
532 pci_len0 = mem_len;
533 } else {
534 return -EIO;
535 }
536
537 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
538
539 adapter->ahw.pci_base0 = mem_ptr0;
540 adapter->ahw.pci_len0 = pci_len0;
541
542 adapter->ahw.ocm_win_crb = qlcnic_get_ioaddr(adapter,
543 QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
544
545 return 0;
546}
547
548static void get_brd_name(struct qlcnic_adapter *adapter, char *name)
549{
550 struct pci_dev *pdev = adapter->pdev;
551 int i, found = 0;
552
553 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
554 if (qlcnic_boards[i].vendor == pdev->vendor &&
555 qlcnic_boards[i].device == pdev->device &&
556 qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
557 qlcnic_boards[i].sub_device == pdev->subsystem_device) {
558 strcpy(name, qlcnic_boards[i].short_name);
559 found = 1;
560 break;
561 }
562
563 }
564
565 if (!found)
566 name = "Unknown";
567}
568
569static void
570qlcnic_check_options(struct qlcnic_adapter *adapter)
571{
572 u32 fw_major, fw_minor, fw_build;
573 char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
574 char serial_num[32];
575 int i, offset, val;
576 int *ptr32;
577 struct pci_dev *pdev = adapter->pdev;
578
579 adapter->driver_mismatch = 0;
580
581 ptr32 = (int *)&serial_num;
582 offset = QLCNIC_FW_SERIAL_NUM_OFFSET;
583 for (i = 0; i < 8; i++) {
584 if (qlcnic_rom_fast_read(adapter, offset, &val) == -1) {
585 dev_err(&pdev->dev, "error reading board info\n");
586 adapter->driver_mismatch = 1;
587 return;
588 }
589 ptr32[i] = cpu_to_le32(val);
590 offset += sizeof(u32);
591 }
592
593 fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
594 fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
595 fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
596
597 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
598
599 if (adapter->portnum == 0) {
600 get_brd_name(adapter, brd_name);
601
602 pr_info("%s: %s Board Chip rev 0x%x\n",
603 module_name(THIS_MODULE),
604 brd_name, adapter->ahw.revision_id);
605 }
606
607 if (adapter->fw_version < QLCNIC_VERSION_CODE(3, 4, 216)) {
608 adapter->driver_mismatch = 1;
609 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
610 fw_major, fw_minor, fw_build);
611 return;
612 }
613
614 i = QLCRD32(adapter, QLCNIC_SRE_MISC);
615 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
616
617 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
618 fw_major, fw_minor, fw_build,
619 adapter->ahw.cut_through ? "cut-through" : "legacy");
620
621 if (adapter->fw_version >= QLCNIC_VERSION_CODE(4, 0, 222))
622 adapter->capabilities = QLCRD32(adapter, CRB_FW_CAPABILITIES_1);
623
624 adapter->flags &= ~QLCNIC_LRO_ENABLED;
625
626 if (adapter->ahw.port_type == QLCNIC_XGBE) {
627 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
628 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
629 } else if (adapter->ahw.port_type == QLCNIC_GBE) {
630 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
631 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
632 }
633
634 adapter->msix_supported = !!use_msi_x;
635 adapter->rss_supported = !!use_msi_x;
636
637 adapter->num_txd = MAX_CMD_DESCRIPTORS;
638
639 adapter->num_lro_rxd = 0;
640 adapter->max_rds_rings = 2;
641}
642
643static int
644qlcnic_start_firmware(struct qlcnic_adapter *adapter)
645{
646 int val, err, first_boot;
647
648 err = qlcnic_set_dma_mask(adapter);
649 if (err)
650 return err;
651
652 if (!qlcnic_can_start_firmware(adapter))
653 goto wait_init;
654
655 first_boot = QLCRD32(adapter, QLCNIC_CAM_RAM(0x1fc));
656 if (first_boot == 0x55555555)
657 /* This is the first boot after power up */
658 QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
659
660 qlcnic_request_firmware(adapter);
661
662 err = qlcnic_need_fw_reset(adapter);
663 if (err < 0)
664 goto err_out;
665 if (err == 0)
666 goto wait_init;
667
668 if (first_boot != 0x55555555) {
669 QLCWR32(adapter, CRB_CMDPEG_STATE, 0);
670 qlcnic_pinit_from_rom(adapter);
671 msleep(1);
672 }
673
674 QLCWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
675 QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0);
676 QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0);
677
678 qlcnic_set_port_mode(adapter);
679
680 err = qlcnic_load_firmware(adapter);
681 if (err)
682 goto err_out;
683
684 qlcnic_release_firmware(adapter);
685
686 val = (_QLCNIC_LINUX_MAJOR << 16)
687 | ((_QLCNIC_LINUX_MINOR << 8))
688 | (_QLCNIC_LINUX_SUBVERSION);
689 QLCWR32(adapter, CRB_DRIVER_VERSION, val);
690
691wait_init:
692 /* Handshake with the card before we register the devices. */
693 err = qlcnic_phantom_init(adapter);
694 if (err)
695 goto err_out;
696
697 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
698
699 qlcnic_update_dma_mask(adapter);
700
701 qlcnic_check_options(adapter);
702
703 adapter->need_fw_reset = 0;
704
705 /* fall through and release firmware */
706
707err_out:
708 qlcnic_release_firmware(adapter);
709 return err;
710}
711
712static int
713qlcnic_request_irq(struct qlcnic_adapter *adapter)
714{
715 irq_handler_t handler;
716 struct qlcnic_host_sds_ring *sds_ring;
717 int err, ring;
718
719 unsigned long flags = 0;
720 struct net_device *netdev = adapter->netdev;
721 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
722
7eb9855d
AKS		 723 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
724 handler = qlcnic_tmp_intr;
725 if (!QLCNIC_IS_MSI_FAMILY(adapter))
726 flags |= IRQF_SHARED;
727
728 } else {
729 if (adapter->flags & QLCNIC_MSIX_ENABLED)
730 handler = qlcnic_msix_intr;
731 else if (adapter->flags & QLCNIC_MSI_ENABLED)
732 handler = qlcnic_msi_intr;
733 else {
734 flags |= IRQF_SHARED;
735 handler = qlcnic_intr;
736 }
af19b491
AKS		 737 }
738 adapter->irq = netdev->irq;
739
740 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
741 sds_ring = &recv_ctx->sds_rings[ring];
742 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
743 err = request_irq(sds_ring->irq, handler,
744 flags, sds_ring->name, sds_ring);
745 if (err)
746 return err;
747 }
748
749 return 0;
750}
751
752static void
753qlcnic_free_irq(struct qlcnic_adapter *adapter)
754{
755 int ring;
756 struct qlcnic_host_sds_ring *sds_ring;
757
758 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
759
760 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
761 sds_ring = &recv_ctx->sds_rings[ring];
762 free_irq(sds_ring->irq, sds_ring);
763 }
764}
765
766static void
767qlcnic_init_coalesce_defaults(struct qlcnic_adapter *adapter)
768{
769 adapter->coal.flags = QLCNIC_INTR_DEFAULT;
770 adapter->coal.normal.data.rx_time_us =
771 QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
772 adapter->coal.normal.data.rx_packets =
773 QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
774 adapter->coal.normal.data.tx_time_us =
775 QLCNIC_DEFAULT_INTR_COALESCE_TX_TIME_US;
776 adapter->coal.normal.data.tx_packets =
777 QLCNIC_DEFAULT_INTR_COALESCE_TX_PACKETS;
778}
779
780static int
781__qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
782{
783 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
784 return -EIO;
785
786 qlcnic_set_multi(netdev);
787 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
788
789 adapter->ahw.linkup = 0;
790
791 if (adapter->max_sds_rings > 1)
792 qlcnic_config_rss(adapter, 1);
793
794 qlcnic_config_intr_coalesce(adapter);
795
796 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
797 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
798
799 qlcnic_napi_enable(adapter);
800
801 qlcnic_linkevent_request(adapter, 1);
802
803 set_bit(__QLCNIC_DEV_UP, &adapter->state);
804 return 0;
805}
806
807/* Usage: During resume and firmware recovery module.*/
808
809static int
810qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
811{
812 int err = 0;
813
814 rtnl_lock();
815 if (netif_running(netdev))
816 err = __qlcnic_up(adapter, netdev);
817 rtnl_unlock();
818
819 return err;
820}
821
822static void
823__qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
824{
825 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
826 return;
827
828 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
829 return;
830
831 smp_mb();
832 spin_lock(&adapter->tx_clean_lock);
833 netif_carrier_off(netdev);
834 netif_tx_disable(netdev);
835
836 qlcnic_free_mac_list(adapter);
837
838 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
839
840 qlcnic_napi_disable(adapter);
841
842 qlcnic_release_tx_buffers(adapter);
843 spin_unlock(&adapter->tx_clean_lock);
844}
845
846/* Usage: During suspend and firmware recovery module */
847
848static void
849qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
850{
851 rtnl_lock();
852 if (netif_running(netdev))
853 __qlcnic_down(adapter, netdev);
854 rtnl_unlock();
855
856}
857
858static int
859qlcnic_attach(struct qlcnic_adapter *adapter)
860{
861 struct net_device *netdev = adapter->netdev;
862 struct pci_dev *pdev = adapter->pdev;
863 int err, ring;
864 struct qlcnic_host_rds_ring *rds_ring;
865
866 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
867 return 0;
868
869 err = qlcnic_init_firmware(adapter);
870 if (err)
871 return err;
872
873 err = qlcnic_napi_add(adapter, netdev);
874 if (err)
875 return err;
876
877 err = qlcnic_alloc_sw_resources(adapter);
878 if (err) {
879 dev_err(&pdev->dev, "Error in setting sw resources\n");
880 return err;
881 }
882
883 err = qlcnic_alloc_hw_resources(adapter);
884 if (err) {
885 dev_err(&pdev->dev, "Error in setting hw resources\n");
886 goto err_out_free_sw;
887 }
888
889
890 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
891 rds_ring = &adapter->recv_ctx.rds_rings[ring];
892 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
893 }
894
895 err = qlcnic_request_irq(adapter);
896 if (err) {
897 dev_err(&pdev->dev, "failed to setup interrupt\n");
898 goto err_out_free_rxbuf;
899 }
900
901 qlcnic_init_coalesce_defaults(adapter);
902
903 qlcnic_create_sysfs_entries(adapter);
904
905 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
906 return 0;
907
908err_out_free_rxbuf:
909 qlcnic_release_rx_buffers(adapter);
910 qlcnic_free_hw_resources(adapter);
911err_out_free_sw:
912 qlcnic_free_sw_resources(adapter);
913 return err;
914}
915
916static void
917qlcnic_detach(struct qlcnic_adapter *adapter)
918{
919 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
920 return;
921
922 qlcnic_remove_sysfs_entries(adapter);
923
924 qlcnic_free_hw_resources(adapter);
925 qlcnic_release_rx_buffers(adapter);
926 qlcnic_free_irq(adapter);
927 qlcnic_napi_del(adapter);
928 qlcnic_free_sw_resources(adapter);
929
930 adapter->is_up = 0;
931}
932
7eb9855d
AKS		 933void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
934{
935 struct qlcnic_adapter *adapter = netdev_priv(netdev);
936 struct qlcnic_host_sds_ring *sds_ring;
937 int ring;
938
cdaff185
AKS		 939 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
940 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
941 sds_ring = &adapter->recv_ctx.sds_rings[ring];
942 qlcnic_disable_int(sds_ring);
943 }
7eb9855d
AKS		 944 }
945
946 qlcnic_detach(adapter);
947
948 adapter->diag_test = 0;
949 adapter->max_sds_rings = max_sds_rings;
950
951 if (qlcnic_attach(adapter))
952 return;
953
954 if (netif_running(netdev))
955 __qlcnic_up(adapter, netdev);
956
957 netif_device_attach(netdev);
958}
959
960int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
961{
962 struct qlcnic_adapter *adapter = netdev_priv(netdev);
963 struct qlcnic_host_sds_ring *sds_ring;
964 int ring;
965 int ret;
966
967 netif_device_detach(netdev);
968
969 if (netif_running(netdev))
970 __qlcnic_down(adapter, netdev);
971
972 qlcnic_detach(adapter);
973
974 adapter->max_sds_rings = 1;
975 adapter->diag_test = test;
976
977 ret = qlcnic_attach(adapter);
978 if (ret)
979 return ret;
980
cdaff185
AKS		 981 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
982 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
983 sds_ring = &adapter->recv_ctx.sds_rings[ring];
984 qlcnic_enable_int(sds_ring);
985 }
7eb9855d
AKS		 986 }
987
988 return 0;
989}
990
af19b491
AKS		 991int
992qlcnic_reset_context(struct qlcnic_adapter *adapter)
993{
994 int err = 0;
995 struct net_device *netdev = adapter->netdev;
996
997 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
998 return -EBUSY;
999
1000 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1001
1002 netif_device_detach(netdev);
1003
1004 if (netif_running(netdev))
1005 __qlcnic_down(adapter, netdev);
1006
1007 qlcnic_detach(adapter);
1008
1009 if (netif_running(netdev)) {
1010 err = qlcnic_attach(adapter);
1011 if (!err)
1012 err = __qlcnic_up(adapter, netdev);
1013
1014 if (err)
1015 goto done;
1016 }
1017
1018 netif_device_attach(netdev);
1019 }
1020
1021done:
1022 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1023 return err;
1024}
1025
1026static int
1027qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
1028 struct net_device *netdev)
1029{
1030 int err;
1031 struct pci_dev *pdev = adapter->pdev;
1032
1033 adapter->rx_csum = 1;
1034 adapter->mc_enabled = 0;
1035 adapter->max_mc_count = 38;
1036
1037 netdev->netdev_ops = &qlcnic_netdev_ops;
1038 netdev->watchdog_timeo = 2*HZ;
1039
1040 qlcnic_change_mtu(netdev, netdev->mtu);
1041
1042 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1043
1044 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1045 netdev->features |= (NETIF_F_GRO);
1046 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1047
1048 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1049 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1050
1051 if (adapter->pci_using_dac) {
1052 netdev->features |= NETIF_F_HIGHDMA;
1053 netdev->vlan_features |= NETIF_F_HIGHDMA;
1054 }
1055
1056 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
1057 netdev->features |= (NETIF_F_HW_VLAN_TX);
1058
1059 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1060 netdev->features |= NETIF_F_LRO;
1061
1062 netdev->irq = adapter->msix_entries[0].vector;
1063
1064 INIT_WORK(&adapter->tx_timeout_task, qlcnic_tx_timeout_task);
1065
1066 if (qlcnic_read_mac_addr(adapter))
1067 dev_warn(&pdev->dev, "failed to read mac addr\n");
1068
1069 netif_carrier_off(netdev);
1070 netif_stop_queue(netdev);
1071
1072 err = register_netdev(netdev);
1073 if (err) {
1074 dev_err(&pdev->dev, "failed to register net device\n");
1075 return err;
1076 }
1077
1078 return 0;
1079}
1080
1081static int __devinit
1082qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1083{
1084 struct net_device *netdev = NULL;
1085 struct qlcnic_adapter *adapter = NULL;
1086 int err;
1087 int pci_func_id = PCI_FUNC(pdev->devfn);
1088 uint8_t revision_id;
1089
1090 err = pci_enable_device(pdev);
1091 if (err)
1092 return err;
1093
1094 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1095 err = -ENODEV;
1096 goto err_out_disable_pdev;
1097 }
1098
1099 err = pci_request_regions(pdev, qlcnic_driver_name);
1100 if (err)
1101 goto err_out_disable_pdev;
1102
1103 pci_set_master(pdev);
1104
1105 netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1106 if (!netdev) {
1107 dev_err(&pdev->dev, "failed to allocate net_device\n");
1108 err = -ENOMEM;
1109 goto err_out_free_res;
1110 }
1111
1112 SET_NETDEV_DEV(netdev, &pdev->dev);
1113
1114 adapter = netdev_priv(netdev);
1115 adapter->netdev = netdev;
1116 adapter->pdev = pdev;
1117 adapter->ahw.pci_func = pci_func_id;
1118
1119 revision_id = pdev->revision;
1120 adapter->ahw.revision_id = revision_id;
1121
1122 rwlock_init(&adapter->ahw.crb_lock);
1123 mutex_init(&adapter->ahw.mem_lock);
1124
1125 spin_lock_init(&adapter->tx_clean_lock);
1126 INIT_LIST_HEAD(&adapter->mac_list);
1127
1128 err = qlcnic_setup_pci_map(adapter);
1129 if (err)
1130 goto err_out_free_netdev;
1131
1132 /* This will be reset for mezz cards */
1133 adapter->portnum = pci_func_id;
1134
1135 err = qlcnic_get_board_info(adapter);
1136 if (err) {
1137 dev_err(&pdev->dev, "Error getting board config info.\n");
1138 goto err_out_iounmap;
1139 }
1140
1141
1142 err = qlcnic_start_firmware(adapter);
1143 if (err)
1144 goto err_out_decr_ref;
1145
1146 /*
1147 * See if the firmware gave us a virtual-physical port mapping.
1148 */
1149 adapter->physical_port = adapter->portnum;
1150
1151 qlcnic_clear_stats(adapter);
1152
1153 qlcnic_setup_intr(adapter);
1154
1155 err = qlcnic_setup_netdev(adapter, netdev);
1156 if (err)
1157 goto err_out_disable_msi;
1158
1159 pci_set_drvdata(pdev, adapter);
1160
1161 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1162
1163 switch (adapter->ahw.port_type) {
1164 case QLCNIC_GBE:
1165 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1166 adapter->netdev->name);
1167 break;
1168 case QLCNIC_XGBE:
1169 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1170 adapter->netdev->name);
1171 break;
1172 }
1173
1174 qlcnic_create_diag_entries(adapter);
1175
1176 return 0;
1177
1178err_out_disable_msi:
1179 qlcnic_teardown_intr(adapter);
1180
1181err_out_decr_ref:
1182 qlcnic_clr_all_drv_state(adapter);
1183
1184err_out_iounmap:
1185 qlcnic_cleanup_pci_map(adapter);
1186
1187err_out_free_netdev:
1188 free_netdev(netdev);
1189
1190err_out_free_res:
1191 pci_release_regions(pdev);
1192
1193err_out_disable_pdev:
1194 pci_set_drvdata(pdev, NULL);
1195 pci_disable_device(pdev);
1196 return err;
1197}
1198
1199static void __devexit qlcnic_remove(struct pci_dev *pdev)
1200{
1201 struct qlcnic_adapter *adapter;
1202 struct net_device *netdev;
1203
1204 adapter = pci_get_drvdata(pdev);
1205 if (adapter == NULL)
1206 return;
1207
1208 netdev = adapter->netdev;
1209
1210 qlcnic_cancel_fw_work(adapter);
1211
1212 unregister_netdev(netdev);
1213
1214 cancel_work_sync(&adapter->tx_timeout_task);
1215
1216 qlcnic_detach(adapter);
1217
1218 qlcnic_clr_all_drv_state(adapter);
1219
1220 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1221
1222 qlcnic_teardown_intr(adapter);
1223
1224 qlcnic_remove_diag_entries(adapter);
1225
1226 qlcnic_cleanup_pci_map(adapter);
1227
1228 qlcnic_release_firmware(adapter);
1229
1230 pci_release_regions(pdev);
1231 pci_disable_device(pdev);
1232 pci_set_drvdata(pdev, NULL);
1233
1234 free_netdev(netdev);
1235}
1236static int __qlcnic_shutdown(struct pci_dev *pdev)
1237{
1238 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1239 struct net_device *netdev = adapter->netdev;
1240 int retval;
1241
1242 netif_device_detach(netdev);
1243
1244 qlcnic_cancel_fw_work(adapter);
1245
1246 if (netif_running(netdev))
1247 qlcnic_down(adapter, netdev);
1248
1249 cancel_work_sync(&adapter->tx_timeout_task);
1250
1251 qlcnic_detach(adapter);
1252
1253 qlcnic_clr_all_drv_state(adapter);
1254
1255 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1256
1257 retval = pci_save_state(pdev);
1258 if (retval)
1259 return retval;
1260
1261 if (qlcnic_wol_supported(adapter)) {
1262 pci_enable_wake(pdev, PCI_D3cold, 1);
1263 pci_enable_wake(pdev, PCI_D3hot, 1);
1264 }
1265
1266 return 0;
1267}
1268
1269static void qlcnic_shutdown(struct pci_dev *pdev)
1270{
1271 if (__qlcnic_shutdown(pdev))
1272 return;
1273
1274 pci_disable_device(pdev);
1275}
1276
1277#ifdef CONFIG_PM
1278static int
1279qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1280{
1281 int retval;
1282
1283 retval = __qlcnic_shutdown(pdev);
1284 if (retval)
1285 return retval;
1286
1287 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1288 return 0;
1289}
1290
1291static int
1292qlcnic_resume(struct pci_dev *pdev)
1293{
1294 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1295 struct net_device *netdev = adapter->netdev;
1296 int err;
1297
1298 err = pci_enable_device(pdev);
1299 if (err)
1300 return err;
1301
1302 pci_set_power_state(pdev, PCI_D0);
1303 pci_set_master(pdev);
1304 pci_restore_state(pdev);
1305
1306 adapter->ahw.crb_win = -1;
1307 adapter->ahw.ocm_win = -1;
1308
1309 err = qlcnic_start_firmware(adapter);
1310 if (err) {
1311 dev_err(&pdev->dev, "failed to start firmware\n");
1312 return err;
1313 }
1314
1315 if (netif_running(netdev)) {
1316 err = qlcnic_attach(adapter);
1317 if (err)
1318 goto err_out;
1319
1320 err = qlcnic_up(adapter, netdev);
1321 if (err)
1322 goto err_out_detach;
1323
1324
1325 qlcnic_config_indev_addr(netdev, NETDEV_UP);
1326 }
1327
1328 netif_device_attach(netdev);
1329 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1330 return 0;
1331
1332err_out_detach:
1333 qlcnic_detach(adapter);
1334err_out:
1335 qlcnic_clr_all_drv_state(adapter);
1336 return err;
1337}
1338#endif
1339
1340static int qlcnic_open(struct net_device *netdev)
1341{
1342 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1343 int err;
1344
1345 if (adapter->driver_mismatch)
1346 return -EIO;
1347
1348 err = qlcnic_attach(adapter);
1349 if (err)
1350 return err;
1351
1352 err = __qlcnic_up(adapter, netdev);
1353 if (err)
1354 goto err_out;
1355
1356 netif_start_queue(netdev);
1357
1358 return 0;
1359
1360err_out:
1361 qlcnic_detach(adapter);
1362 return err;
1363}
1364
1365/*
1366 * qlcnic_close - Disables a network interface entry point
1367 */
1368static int qlcnic_close(struct net_device *netdev)
1369{
1370 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1371
1372 __qlcnic_down(adapter, netdev);
1373 return 0;
1374}
1375
1376static void
1377qlcnic_tso_check(struct net_device *netdev,
1378 struct qlcnic_host_tx_ring *tx_ring,
1379 struct cmd_desc_type0 *first_desc,
1380 struct sk_buff *skb)
1381{
1382 u8 opcode = TX_ETHER_PKT;
1383 __be16 protocol = skb->protocol;
1384 u16 flags = 0, vid = 0;
1385 u32 producer;
1386 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1387 struct cmd_desc_type0 *hwdesc;
1388 struct vlan_ethhdr *vh;
8bfe8b91 1389 struct qlcnic_adapter *adapter = netdev_priv(netdev);
af19b491
AKS		 1390
1391 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1392
1393 vh = (struct vlan_ethhdr *)skb->data;
1394 protocol = vh->h_vlan_encapsulated_proto;
1395 flags = FLAGS_VLAN_TAGGED;
1396
1397 } else if (vlan_tx_tag_present(skb)) {
1398
1399 flags = FLAGS_VLAN_OOB;
1400 vid = vlan_tx_tag_get(skb);
1401 qlcnic_set_tx_vlan_tci(first_desc, vid);
1402 vlan_oob = 1;
1403 }
1404
1405 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1406 skb_shinfo(skb)->gso_size > 0) {
1407
1408 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1409
1410 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1411 first_desc->total_hdr_length = hdr_len;
1412 if (vlan_oob) {
1413 first_desc->total_hdr_length += VLAN_HLEN;
1414 first_desc->tcp_hdr_offset = VLAN_HLEN;
1415 first_desc->ip_hdr_offset = VLAN_HLEN;
1416 /* Only in case of TSO on vlan device */
1417 flags |= FLAGS_VLAN_TAGGED;
1418 }
1419
1420 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1421 TX_TCP_LSO6 : TX_TCP_LSO;
1422 tso = 1;
1423
1424 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1425 u8 l4proto;
1426
1427 if (protocol == cpu_to_be16(ETH_P_IP)) {
1428 l4proto = ip_hdr(skb)->protocol;
1429
1430 if (l4proto == IPPROTO_TCP)
1431 opcode = TX_TCP_PKT;
1432 else if (l4proto == IPPROTO_UDP)
1433 opcode = TX_UDP_PKT;
1434 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1435 l4proto = ipv6_hdr(skb)->nexthdr;
1436
1437 if (l4proto == IPPROTO_TCP)
1438 opcode = TX_TCPV6_PKT;
1439 else if (l4proto == IPPROTO_UDP)
1440 opcode = TX_UDPV6_PKT;
1441 }
1442 }
1443
1444 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1445 first_desc->ip_hdr_offset += skb_network_offset(skb);
1446 qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
1447
1448 if (!tso)
1449 return;
1450
1451 /* For LSO, we need to copy the MAC/IP/TCP headers into
1452 * the descriptor ring
1453 */
1454 producer = tx_ring->producer;
1455 copied = 0;
1456 offset = 2;
1457
1458 if (vlan_oob) {
1459 /* Create a TSO vlan header template for firmware */
1460
1461 hwdesc = &tx_ring->desc_head[producer];
1462 tx_ring->cmd_buf_arr[producer].skb = NULL;
1463
1464 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1465 hdr_len + VLAN_HLEN);
1466
1467 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1468 skb_copy_from_linear_data(skb, vh, 12);
1469 vh->h_vlan_proto = htons(ETH_P_8021Q);
1470 vh->h_vlan_TCI = htons(vid);
1471 skb_copy_from_linear_data_offset(skb, 12,
1472 (char *)vh + 16, copy_len - 16);
1473
1474 copied = copy_len - VLAN_HLEN;
1475 offset = 0;
1476
1477 producer = get_next_index(producer, tx_ring->num_desc);
1478 }
1479
1480 while (copied < hdr_len) {
1481
1482 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1483 (hdr_len - copied));
1484
1485 hwdesc = &tx_ring->desc_head[producer];
1486 tx_ring->cmd_buf_arr[producer].skb = NULL;
1487
1488 skb_copy_from_linear_data_offset(skb, copied,
1489 (char *)hwdesc + offset, copy_len);
1490
1491 copied += copy_len;
1492 offset = 0;
1493
1494 producer = get_next_index(producer, tx_ring->num_desc);
1495 }
1496
1497 tx_ring->producer = producer;
1498 barrier();
8bfe8b91 1499 adapter->stats.lso_frames++;
af19b491
AKS		 1500}
1501
1502static int
1503qlcnic_map_tx_skb(struct pci_dev *pdev,
1504 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
1505{
1506 struct qlcnic_skb_frag *nf;
1507 struct skb_frag_struct *frag;
1508 int i, nr_frags;
1509 dma_addr_t map;
1510
1511 nr_frags = skb_shinfo(skb)->nr_frags;
1512 nf = &pbuf->frag_array[0];
1513
1514 map = pci_map_single(pdev, skb->data,
1515 skb_headlen(skb), PCI_DMA_TODEVICE);
1516 if (pci_dma_mapping_error(pdev, map))
1517 goto out_err;
1518
1519 nf->dma = map;
1520 nf->length = skb_headlen(skb);
1521
1522 for (i = 0; i < nr_frags; i++) {
1523 frag = &skb_shinfo(skb)->frags[i];
1524 nf = &pbuf->frag_array[i+1];
1525
1526 map = pci_map_page(pdev, frag->page, frag->page_offset,
1527 frag->size, PCI_DMA_TODEVICE);
1528 if (pci_dma_mapping_error(pdev, map))
1529 goto unwind;
1530
1531 nf->dma = map;
1532 nf->length = frag->size;
1533 }
1534
1535 return 0;
1536
1537unwind:
1538 while (--i >= 0) {
1539 nf = &pbuf->frag_array[i+1];
1540 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1541 }
1542
1543 nf = &pbuf->frag_array[0];
1544 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1545
1546out_err:
1547 return -ENOMEM;
1548}
1549
1550static inline void
1551qlcnic_clear_cmddesc(u64 *desc)
1552{
1553 desc[0] = 0ULL;
1554 desc[2] = 0ULL;
1555}
1556
cdaff185 1557netdev_tx_t
af19b491
AKS		 1558qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1559{
1560 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1561 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
1562 struct qlcnic_cmd_buffer *pbuf;
1563 struct qlcnic_skb_frag *buffrag;
1564 struct cmd_desc_type0 *hwdesc, *first_desc;
1565 struct pci_dev *pdev;
1566 int i, k;
1567
1568 u32 producer;
1569 int frag_count, no_of_desc;
1570 u32 num_txd = tx_ring->num_desc;
1571
1572 frag_count = skb_shinfo(skb)->nr_frags + 1;
1573
1574 /* 4 fragments per cmd des */
1575 no_of_desc = (frag_count + 3) >> 2;
1576
1577 if (unlikely(no_of_desc + 2 > qlcnic_tx_avail(tx_ring))) {
1578 netif_stop_queue(netdev);
8bfe8b91 1579 adapter->stats.xmit_off++;
af19b491
AKS		 1580 return NETDEV_TX_BUSY;
1581 }
1582
1583 producer = tx_ring->producer;
1584 pbuf = &tx_ring->cmd_buf_arr[producer];
1585
1586 pdev = adapter->pdev;
1587
1588 if (qlcnic_map_tx_skb(pdev, skb, pbuf))
1589 goto drop_packet;
1590
1591 pbuf->skb = skb;
1592 pbuf->frag_count = frag_count;
1593
1594 first_desc = hwdesc = &tx_ring->desc_head[producer];
1595 qlcnic_clear_cmddesc((u64 *)hwdesc);
1596
1597 qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
1598 qlcnic_set_tx_port(first_desc, adapter->portnum);
1599
1600 for (i = 0; i < frag_count; i++) {
1601
1602 k = i % 4;
1603
1604 if ((k == 0) && (i > 0)) {
1605 /* move to next desc.*/
1606 producer = get_next_index(producer, num_txd);
1607 hwdesc = &tx_ring->desc_head[producer];
1608 qlcnic_clear_cmddesc((u64 *)hwdesc);
1609 tx_ring->cmd_buf_arr[producer].skb = NULL;
1610 }
1611
1612 buffrag = &pbuf->frag_array[i];
1613
1614 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
1615 switch (k) {
1616 case 0:
1617 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1618 break;
1619 case 1:
1620 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
1621 break;
1622 case 2:
1623 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
1624 break;
1625 case 3:
1626 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
1627 break;
1628 }
1629 }
1630
1631 tx_ring->producer = get_next_index(producer, num_txd);
1632
1633 qlcnic_tso_check(netdev, tx_ring, first_desc, skb);
1634
1635 qlcnic_update_cmd_producer(adapter, tx_ring);
1636
1637 adapter->stats.txbytes += skb->len;
1638 adapter->stats.xmitcalled++;
1639
1640 return NETDEV_TX_OK;
1641
1642drop_packet:
1643 adapter->stats.txdropped++;
1644 dev_kfree_skb_any(skb);
1645 return NETDEV_TX_OK;
1646}
1647
1648static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
1649{
1650 struct net_device *netdev = adapter->netdev;
1651 u32 temp, temp_state, temp_val;
1652 int rv = 0;
1653
1654 temp = QLCRD32(adapter, CRB_TEMP_STATE);
1655
1656 temp_state = qlcnic_get_temp_state(temp);
1657 temp_val = qlcnic_get_temp_val(temp);
1658
1659 if (temp_state == QLCNIC_TEMP_PANIC) {
1660 dev_err(&netdev->dev,
1661 "Device temperature %d degrees C exceeds"
1662 " maximum allowed. Hardware has been shut down.\n",
1663 temp_val);
1664 rv = 1;
1665 } else if (temp_state == QLCNIC_TEMP_WARN) {
1666 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
1667 dev_err(&netdev->dev,
1668 "Device temperature %d degrees C "
1669 "exceeds operating range."
1670 " Immediate action needed.\n",
1671 temp_val);
1672 }
1673 } else {
1674 if (adapter->temp == QLCNIC_TEMP_WARN) {
1675 dev_info(&netdev->dev,
1676 "Device temperature is now %d degrees C"
1677 " in normal range.\n", temp_val);
1678 }
1679 }
1680 adapter->temp = temp_state;
1681 return rv;
1682}
1683
1684void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
1685{
1686 struct net_device *netdev = adapter->netdev;
1687
1688 if (adapter->ahw.linkup && !linkup) {
1689 dev_info(&netdev->dev, "NIC Link is down\n");
1690 adapter->ahw.linkup = 0;
1691 if (netif_running(netdev)) {
1692 netif_carrier_off(netdev);
1693 netif_stop_queue(netdev);
1694 }
1695 } else if (!adapter->ahw.linkup && linkup) {
1696 dev_info(&netdev->dev, "NIC Link is up\n");
1697 adapter->ahw.linkup = 1;
1698 if (netif_running(netdev)) {
1699 netif_carrier_on(netdev);
1700 netif_wake_queue(netdev);
1701 }
1702 }
1703}
1704
1705static void qlcnic_tx_timeout(struct net_device *netdev)
1706{
1707 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1708
1709 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
1710 return;
1711
1712 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
1713 schedule_work(&adapter->tx_timeout_task);
1714}
1715
1716static void qlcnic_tx_timeout_task(struct work_struct *work)
1717{
1718 struct qlcnic_adapter *adapter =
1719 container_of(work, struct qlcnic_adapter, tx_timeout_task);
1720
1721 if (!netif_running(adapter->netdev))
1722 return;
1723
1724 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1725 return;
1726
1727 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
1728 goto request_reset;
1729
1730 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1731 if (!qlcnic_reset_context(adapter)) {
1732 adapter->netdev->trans_start = jiffies;
1733 return;
1734
1735 /* context reset failed, fall through for fw reset */
1736 }
1737
1738request_reset:
1739 adapter->need_fw_reset = 1;
1740 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1741}
1742
1743static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
1744{
1745 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1746 struct net_device_stats *stats = &netdev->stats;
1747
1748 memset(stats, 0, sizeof(*stats));
1749
1750 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
1751 stats->tx_packets = adapter->stats.xmitfinished;
1752 stats->rx_bytes = adapter->stats.rxbytes;
1753 stats->tx_bytes = adapter->stats.txbytes;
1754 stats->rx_dropped = adapter->stats.rxdropped;
1755 stats->tx_dropped = adapter->stats.txdropped;
1756
1757 return stats;
1758}
1759
7eb9855d 1760static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
af19b491 1761{
af19b491
AKS		 1762 u32 status;
1763
1764 status = readl(adapter->isr_int_vec);
1765
1766 if (!(status & adapter->int_vec_bit))
1767 return IRQ_NONE;
1768
1769 /* check interrupt state machine, to be sure */
1770 status = readl(adapter->crb_int_state_reg);
1771 if (!ISR_LEGACY_INT_TRIGGERED(status))
1772 return IRQ_NONE;
1773
1774 writel(0xffffffff, adapter->tgt_status_reg);
1775 /* read twice to ensure write is flushed */
1776 readl(adapter->isr_int_vec);
1777 readl(adapter->isr_int_vec);
1778
7eb9855d
AKS		 1779 return IRQ_HANDLED;
1780}
1781
1782static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
1783{
1784 struct qlcnic_host_sds_ring *sds_ring = data;
1785 struct qlcnic_adapter *adapter = sds_ring->adapter;
1786
1787 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1788 goto done;
1789 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
1790 writel(0xffffffff, adapter->tgt_status_reg);
1791 goto done;
1792 }
1793
1794 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
1795 return IRQ_NONE;
1796
1797done:
1798 adapter->diag_cnt++;
1799 qlcnic_enable_int(sds_ring);
1800 return IRQ_HANDLED;
1801}
1802
1803static irqreturn_t qlcnic_intr(int irq, void *data)
1804{
1805 struct qlcnic_host_sds_ring *sds_ring = data;
1806 struct qlcnic_adapter *adapter = sds_ring->adapter;
1807
1808 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
1809 return IRQ_NONE;
1810
af19b491
AKS		 1811 napi_schedule(&sds_ring->napi);
1812
1813 return IRQ_HANDLED;
1814}
1815
1816static irqreturn_t qlcnic_msi_intr(int irq, void *data)
1817{
1818 struct qlcnic_host_sds_ring *sds_ring = data;
1819 struct qlcnic_adapter *adapter = sds_ring->adapter;
1820
1821 /* clear interrupt */
1822 writel(0xffffffff, adapter->tgt_status_reg);
1823
1824 napi_schedule(&sds_ring->napi);
1825 return IRQ_HANDLED;
1826}
1827
1828static irqreturn_t qlcnic_msix_intr(int irq, void *data)
1829{
1830 struct qlcnic_host_sds_ring *sds_ring = data;
1831
1832 napi_schedule(&sds_ring->napi);
1833 return IRQ_HANDLED;
1834}
1835
1836static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
1837{
1838 u32 sw_consumer, hw_consumer;
1839 int count = 0, i;
1840 struct qlcnic_cmd_buffer *buffer;
1841 struct pci_dev *pdev = adapter->pdev;
1842 struct net_device *netdev = adapter->netdev;
1843 struct qlcnic_skb_frag *frag;
1844 int done;
1845 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
1846
1847 if (!spin_trylock(&adapter->tx_clean_lock))
1848 return 1;
1849
1850 sw_consumer = tx_ring->sw_consumer;
1851 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1852
1853 while (sw_consumer != hw_consumer) {
1854 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
1855 if (buffer->skb) {
1856 frag = &buffer->frag_array[0];
1857 pci_unmap_single(pdev, frag->dma, frag->length,
1858 PCI_DMA_TODEVICE);
1859 frag->dma = 0ULL;
1860 for (i = 1; i < buffer->frag_count; i++) {
1861 frag++;
1862 pci_unmap_page(pdev, frag->dma, frag->length,
1863 PCI_DMA_TODEVICE);
1864 frag->dma = 0ULL;
1865 }
1866
1867 adapter->stats.xmitfinished++;
1868 dev_kfree_skb_any(buffer->skb);
1869 buffer->skb = NULL;
1870 }
1871
1872 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
1873 if (++count >= MAX_STATUS_HANDLE)
1874 break;
1875 }
1876
1877 if (count && netif_running(netdev)) {
1878 tx_ring->sw_consumer = sw_consumer;
1879
1880 smp_mb();
1881
1882 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
1883 __netif_tx_lock(tx_ring->txq, smp_processor_id());
1884 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
1885 netif_wake_queue(netdev);
1886 adapter->tx_timeo_cnt = 0;
8bfe8b91 1887 adapter->stats.xmit_on++;
af19b491
AKS		 1888 }
1889 __netif_tx_unlock(tx_ring->txq);
1890 }
1891 }
1892 /*
1893 * If everything is freed up to consumer then check if the ring is full
1894 * If the ring is full then check if more needs to be freed and
1895 * schedule the call back again.
1896 *
1897 * This happens when there are 2 CPUs. One could be freeing and the
1898 * other filling it. If the ring is full when we get out of here and
1899 * the card has already interrupted the host then the host can miss the
1900 * interrupt.
1901 *
1902 * There is still a possible race condition and the host could miss an
1903 * interrupt. The card has to take care of this.
1904 */
1905 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1906 done = (sw_consumer == hw_consumer);
1907 spin_unlock(&adapter->tx_clean_lock);
1908
1909 return done;
1910}
1911
1912static int qlcnic_poll(struct napi_struct *napi, int budget)
1913{
1914 struct qlcnic_host_sds_ring *sds_ring =
1915 container_of(napi, struct qlcnic_host_sds_ring, napi);
1916
1917 struct qlcnic_adapter *adapter = sds_ring->adapter;
1918
1919 int tx_complete;
1920 int work_done;
1921
1922 tx_complete = qlcnic_process_cmd_ring(adapter);
1923
1924 work_done = qlcnic_process_rcv_ring(sds_ring, budget);
1925
1926 if ((work_done < budget) && tx_complete) {
1927 napi_complete(&sds_ring->napi);
1928 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1929 qlcnic_enable_int(sds_ring);
1930 }
1931
1932 return work_done;
1933}
1934
1935#ifdef CONFIG_NET_POLL_CONTROLLER
1936static void qlcnic_poll_controller(struct net_device *netdev)
1937{
1938 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1939 disable_irq(adapter->irq);
1940 qlcnic_intr(adapter->irq, adapter);
1941 enable_irq(adapter->irq);
1942}
1943#endif
1944
1945static void
1946qlcnic_set_drv_state(struct qlcnic_adapter *adapter, int state)
1947{
1948 u32 val;
1949
1950 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
1951 state != QLCNIC_DEV_NEED_QUISCENT);
1952
1953 if (qlcnic_api_lock(adapter))
1954 return ;
1955
1956 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
1957
1958 if (state == QLCNIC_DEV_NEED_RESET)
1959 val |= ((u32)0x1 << (adapter->portnum * 4));
1960 else if (state == QLCNIC_DEV_NEED_QUISCENT)
1961 val |= ((u32)0x1 << ((adapter->portnum * 4) + 1));
1962
1963 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
1964
1965 qlcnic_api_unlock(adapter);
1966}
1967
1b95a839
AKS		 1968static int
1969qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
1970{
1971 u32 val;
1972
1973 if (qlcnic_api_lock(adapter))
1974 return -EBUSY;
1975
1976 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
1977 val &= ~((u32)0x3 << (adapter->portnum * 4));
1978 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
1979
1980 qlcnic_api_unlock(adapter);
1981
1982 return 0;
1983}
1984
af19b491
AKS		 1985static void
1986qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter)
1987{
1988 u32 val;
1989
1990 if (qlcnic_api_lock(adapter))
1991 goto err;
1992
1993 val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
1994 val &= ~((u32)0x1 << (adapter->portnum * 4));
1995 QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val);
1996
1997 if (!(val & 0x11111111))
1998 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
1999
2000 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2001 val &= ~((u32)0x3 << (adapter->portnum * 4));
2002 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2003
2004 qlcnic_api_unlock(adapter);
2005err:
2006 adapter->fw_fail_cnt = 0;
2007 clear_bit(__QLCNIC_START_FW, &adapter->state);
2008 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2009}
2010
2011static int
2012qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2013{
2014 int act, state;
2015
2016 state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2017 act = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
2018
2019 if (((state & 0x11111111) == (act & 0x11111111)) ||
2020 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2021 return 0;
2022 else
2023 return 1;
2024}
2025
2026static int
2027qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2028{
2029 u32 val, prev_state;
2030 int cnt = 0;
2031 int portnum = adapter->portnum;
2032
2033 if (qlcnic_api_lock(adapter))
2034 return -1;
2035
2036 val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
2037 if (!(val & ((int)0x1 << (portnum * 4)))) {
2038 val |= ((u32)0x1 << (portnum * 4));
2039 QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val);
2040 } else if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state)) {
2041 goto start_fw;
2042 }
2043
2044 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2045
2046 switch (prev_state) {
2047 case QLCNIC_DEV_COLD:
2048start_fw:
2049 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITALIZING);
2050 qlcnic_api_unlock(adapter);
2051 return 1;
2052
2053 case QLCNIC_DEV_READY:
2054 qlcnic_api_unlock(adapter);
2055 return 0;
2056
2057 case QLCNIC_DEV_NEED_RESET:
2058 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2059 val |= ((u32)0x1 << (portnum * 4));
2060 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2061 break;
2062
2063 case QLCNIC_DEV_NEED_QUISCENT:
2064 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2065 val |= ((u32)0x1 << ((portnum * 4) + 1));
2066 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2067 break;
2068
2069 case QLCNIC_DEV_FAILED:
2070 qlcnic_api_unlock(adapter);
2071 return -1;
2072 }
2073
2074 qlcnic_api_unlock(adapter);
2075 msleep(1000);
2076 while ((QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) != QLCNIC_DEV_READY) &&
2077 ++cnt < 20)
2078 msleep(1000);
2079
2080 if (cnt >= 20)
2081 return -1;
2082
2083 if (qlcnic_api_lock(adapter))
2084 return -1;
2085
2086 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2087 val &= ~((u32)0x3 << (portnum * 4));
2088 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2089
2090 qlcnic_api_unlock(adapter);
2091
2092 return 0;
2093}
2094
2095static void
2096qlcnic_fwinit_work(struct work_struct *work)
2097{
2098 struct qlcnic_adapter *adapter = container_of(work,
2099 struct qlcnic_adapter, fw_work.work);
2100 int dev_state;
2101
2102 if (++adapter->fw_wait_cnt > FW_POLL_THRESH)
2103 goto err_ret;
2104
2105 if (test_bit(__QLCNIC_START_FW, &adapter->state)) {
2106
2107 if (qlcnic_check_drv_state(adapter)) {
2108 qlcnic_schedule_work(adapter,
2109 qlcnic_fwinit_work, FW_POLL_DELAY);
2110 return;
2111 }
2112
2113 if (!qlcnic_start_firmware(adapter)) {
2114 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2115 return;
2116 }
2117
2118 goto err_ret;
2119 }
2120
2121 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2122 switch (dev_state) {
2123 case QLCNIC_DEV_READY:
2124 if (!qlcnic_start_firmware(adapter)) {
2125 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2126 return;
2127 }
2128 case QLCNIC_DEV_FAILED:
2129 break;
2130
2131 default:
2132 qlcnic_schedule_work(adapter,
2133 qlcnic_fwinit_work, 2 * FW_POLL_DELAY);
2134 return;
2135 }
2136
2137err_ret:
2138 qlcnic_clr_all_drv_state(adapter);
2139}
2140
2141static void
2142qlcnic_detach_work(struct work_struct *work)
2143{
2144 struct qlcnic_adapter *adapter = container_of(work,
2145 struct qlcnic_adapter, fw_work.work);
2146 struct net_device *netdev = adapter->netdev;
2147 u32 status;
2148
2149 netif_device_detach(netdev);
2150
2151 qlcnic_down(adapter, netdev);
2152
ce668443 2153 rtnl_lock();
af19b491 2154 qlcnic_detach(adapter);
ce668443 2155 rtnl_unlock();
af19b491
AKS		 2156
2157 status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2158
2159 if (status & QLCNIC_RCODE_FATAL_ERROR)
2160 goto err_ret;
2161
2162 if (adapter->temp == QLCNIC_TEMP_PANIC)
2163 goto err_ret;
2164
2165 qlcnic_set_drv_state(adapter, adapter->dev_state);
2166
2167 adapter->fw_wait_cnt = 0;
2168
2169 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2170
2171 return;
2172
2173err_ret:
2174 qlcnic_clr_all_drv_state(adapter);
2175
2176}
2177
2178static void
2179qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
2180{
2181 u32 state;
2182
2183 if (qlcnic_api_lock(adapter))
2184 return;
2185
2186 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2187
2188 if (state != QLCNIC_DEV_INITALIZING && state != QLCNIC_DEV_NEED_RESET) {
2189 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
2190 set_bit(__QLCNIC_START_FW, &adapter->state);
2191 }
2192
2193 qlcnic_api_unlock(adapter);
2194}
2195
2196static void
2197qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2198 work_func_t func, int delay)
2199{
2200 INIT_DELAYED_WORK(&adapter->fw_work, func);
2201 schedule_delayed_work(&adapter->fw_work, round_jiffies_relative(delay));
2202}
2203
2204static void
2205qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
2206{
2207 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2208 msleep(10);
2209
2210 cancel_delayed_work_sync(&adapter->fw_work);
2211}
2212
2213static void
2214qlcnic_attach_work(struct work_struct *work)
2215{
2216 struct qlcnic_adapter *adapter = container_of(work,
2217 struct qlcnic_adapter, fw_work.work);
2218 struct net_device *netdev = adapter->netdev;
2219 int err;
2220
2221 if (netif_running(netdev)) {
2222 err = qlcnic_attach(adapter);
2223 if (err)
2224 goto done;
2225
2226 err = qlcnic_up(adapter, netdev);
2227 if (err) {
2228 qlcnic_detach(adapter);
2229 goto done;
2230 }
2231
2232 qlcnic_config_indev_addr(netdev, NETDEV_UP);
2233 }
2234
2235 netif_device_attach(netdev);
2236
2237done:
2238 adapter->fw_fail_cnt = 0;
2239 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1b95a839
AKS		 2240
2241 if (!qlcnic_clr_drv_state(adapter))
2242 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2243 FW_POLL_DELAY);
af19b491
AKS		 2244}
2245
2246static int
2247qlcnic_check_health(struct qlcnic_adapter *adapter)
2248{
2249 u32 state = 0, heartbit;
2250 struct net_device *netdev = adapter->netdev;
2251
2252 if (qlcnic_check_temp(adapter))
2253 goto detach;
2254
2255 if (adapter->need_fw_reset) {
2256 qlcnic_dev_request_reset(adapter);
2257 goto detach;
2258 }
2259
2260 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2261 if (state == QLCNIC_DEV_NEED_RESET || state == QLCNIC_DEV_NEED_QUISCENT)
2262 adapter->need_fw_reset = 1;
2263
2264 heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2265 if (heartbit != adapter->heartbit) {
2266 adapter->heartbit = heartbit;
2267 adapter->fw_fail_cnt = 0;
2268 if (adapter->need_fw_reset)
2269 goto detach;
2270 return 0;
2271 }
2272
2273 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2274 return 0;
2275
2276 qlcnic_dev_request_reset(adapter);
2277
2278 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2279
2280 dev_info(&netdev->dev, "firmware hang detected\n");
2281
2282detach:
2283 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
2284 QLCNIC_DEV_NEED_RESET;
2285
2286 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2287 !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2288 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
2289
2290 return 1;
2291}
2292
2293static void
2294qlcnic_fw_poll_work(struct work_struct *work)
2295{
2296 struct qlcnic_adapter *adapter = container_of(work,
2297 struct qlcnic_adapter, fw_work.work);
2298
2299 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2300 goto reschedule;
2301
2302
2303 if (qlcnic_check_health(adapter))
2304 return;
2305
2306reschedule:
2307 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2308}
2309
2310static ssize_t
2311qlcnic_store_bridged_mode(struct device *dev,
2312 struct device_attribute *attr, const char *buf, size_t len)
2313{
2314 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2315 unsigned long new;
2316 int ret = -EINVAL;
2317
2318 if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
2319 goto err_out;
2320
2321 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2322 goto err_out;
2323
2324 if (strict_strtoul(buf, 2, &new))
2325 goto err_out;
2326
2327 if (!qlcnic_config_bridged_mode(adapter, !!new))
2328 ret = len;
2329
2330err_out:
2331 return ret;
2332}
2333
2334static ssize_t
2335qlcnic_show_bridged_mode(struct device *dev,
2336 struct device_attribute *attr, char *buf)
2337{
2338 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2339 int bridged_mode = 0;
2340
2341 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
2342 bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
2343
2344 return sprintf(buf, "%d\n", bridged_mode);
2345}
2346
2347static struct device_attribute dev_attr_bridged_mode = {
2348 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2349 .show = qlcnic_show_bridged_mode,
2350 .store = qlcnic_store_bridged_mode,
2351};
2352
2353static ssize_t
2354qlcnic_store_diag_mode(struct device *dev,
2355 struct device_attribute *attr, const char *buf, size_t len)
2356{
2357 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2358 unsigned long new;
2359
2360 if (strict_strtoul(buf, 2, &new))
2361 return -EINVAL;
2362
2363 if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
2364 adapter->flags ^= QLCNIC_DIAG_ENABLED;
2365
2366 return len;
2367}
2368
2369static ssize_t
2370qlcnic_show_diag_mode(struct device *dev,
2371 struct device_attribute *attr, char *buf)
2372{
2373 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2374
2375 return sprintf(buf, "%d\n",
2376 !!(adapter->flags & QLCNIC_DIAG_ENABLED));
2377}
2378
2379static struct device_attribute dev_attr_diag_mode = {
2380 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2381 .show = qlcnic_show_diag_mode,
2382 .store = qlcnic_store_diag_mode,
2383};
2384
2385static int
2386qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
2387 loff_t offset, size_t size)
2388{
897e8c7c
DP		 2389 size_t crb_size = 4;
2390
af19b491
AKS		 2391 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
2392 return -EIO;
2393
897e8c7c
DP		 2394 if (offset < QLCNIC_PCI_CRBSPACE) {
2395 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM,
2396 QLCNIC_PCI_CAMQM_END))
2397 crb_size = 8;
2398 else
2399 return -EINVAL;
2400 }
af19b491 2401
897e8c7c
DP		 2402 if ((size != crb_size) || (offset & (crb_size-1)))
2403 return -EINVAL;
af19b491
AKS		 2404
2405 return 0;
2406}
2407
2408static ssize_t
2409qlcnic_sysfs_read_crb(struct kobject *kobj, struct bin_attribute *attr,
2410 char *buf, loff_t offset, size_t size)
2411{
2412 struct device *dev = container_of(kobj, struct device, kobj);
2413 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2414 u32 data;
897e8c7c 2415 u64 qmdata;
af19b491
AKS		 2416 int ret;
2417
2418 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
2419 if (ret != 0)
2420 return ret;
2421
897e8c7c
DP		 2422 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
2423 qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
2424 memcpy(buf, &qmdata, size);
2425 } else {
2426 data = QLCRD32(adapter, offset);
2427 memcpy(buf, &data, size);
2428 }
af19b491
AKS		 2429 return size;
2430}
2431
2432static ssize_t
2433qlcnic_sysfs_write_crb(struct kobject *kobj, struct bin_attribute *attr,
2434 char *buf, loff_t offset, size_t size)
2435{
2436 struct device *dev = container_of(kobj, struct device, kobj);
2437 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2438 u32 data;
897e8c7c 2439 u64 qmdata;
af19b491
AKS		 2440 int ret;
2441
2442 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
2443 if (ret != 0)
2444 return ret;
2445
897e8c7c
DP		 2446 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
2447 memcpy(&qmdata, buf, size);
2448 qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
2449 } else {
2450 memcpy(&data, buf, size);
2451 QLCWR32(adapter, offset, data);
2452 }
af19b491
AKS		 2453 return size;
2454}
2455
2456static int
2457qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
2458 loff_t offset, size_t size)
2459{
2460 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
2461 return -EIO;
2462
2463 if ((size != 8) || (offset & 0x7))
2464 return -EIO;
2465
2466 return 0;
2467}
2468
2469static ssize_t
2470qlcnic_sysfs_read_mem(struct kobject *kobj, struct bin_attribute *attr,
2471 char *buf, loff_t offset, size_t size)
2472{
2473 struct device *dev = container_of(kobj, struct device, kobj);
2474 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2475 u64 data;
2476 int ret;
2477
2478 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
2479 if (ret != 0)
2480 return ret;
2481
2482 if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
2483 return -EIO;
2484
2485 memcpy(buf, &data, size);
2486
2487 return size;
2488}
2489
2490static ssize_t
2491qlcnic_sysfs_write_mem(struct kobject *kobj, struct bin_attribute *attr,
2492 char *buf, loff_t offset, size_t size)
2493{
2494 struct device *dev = container_of(kobj, struct device, kobj);
2495 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2496 u64 data;
2497 int ret;
2498
2499 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
2500 if (ret != 0)
2501 return ret;
2502
2503 memcpy(&data, buf, size);
2504
2505 if (qlcnic_pci_mem_write_2M(adapter, offset, data))
2506 return -EIO;
2507
2508 return size;
2509}
2510
2511
2512static struct bin_attribute bin_attr_crb = {
2513 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2514 .size = 0,
2515 .read = qlcnic_sysfs_read_crb,
2516 .write = qlcnic_sysfs_write_crb,
2517};
2518
2519static struct bin_attribute bin_attr_mem = {
2520 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2521 .size = 0,
2522 .read = qlcnic_sysfs_read_mem,
2523 .write = qlcnic_sysfs_write_mem,
2524};
2525
2526static void
2527qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
2528{
2529 struct device *dev = &adapter->pdev->dev;
2530
2531 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
2532 if (device_create_file(dev, &dev_attr_bridged_mode))
2533 dev_warn(dev,
2534 "failed to create bridged_mode sysfs entry\n");
2535}
2536
2537static void
2538qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
2539{
2540 struct device *dev = &adapter->pdev->dev;
2541
2542 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
2543 device_remove_file(dev, &dev_attr_bridged_mode);
2544}
2545
2546static void
2547qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
2548{
2549 struct device *dev = &adapter->pdev->dev;
2550
2551 if (device_create_file(dev, &dev_attr_diag_mode))
2552 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2553 if (device_create_bin_file(dev, &bin_attr_crb))
2554 dev_info(dev, "failed to create crb sysfs entry\n");
2555 if (device_create_bin_file(dev, &bin_attr_mem))
2556 dev_info(dev, "failed to create mem sysfs entry\n");
2557}
2558
2559
2560static void
2561qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
2562{
2563 struct device *dev = &adapter->pdev->dev;
2564
2565 device_remove_file(dev, &dev_attr_diag_mode);
2566 device_remove_bin_file(dev, &bin_attr_crb);
2567 device_remove_bin_file(dev, &bin_attr_mem);
2568}
2569
2570#ifdef CONFIG_INET
2571
2572#define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
2573
2574static int
2575qlcnic_destip_supported(struct qlcnic_adapter *adapter)
2576{
2577 if (adapter->ahw.cut_through)
2578 return 0;
2579
2580 return 1;
2581}
2582
2583static void
2584qlcnic_config_indev_addr(struct net_device *dev, unsigned long event)
2585{
2586 struct in_device *indev;
2587 struct qlcnic_adapter *adapter = netdev_priv(dev);
2588
2589 if (!qlcnic_destip_supported(adapter))
2590 return;
2591
2592 indev = in_dev_get(dev);
2593 if (!indev)
2594 return;
2595
2596 for_ifa(indev) {
2597 switch (event) {
2598 case NETDEV_UP:
2599 qlcnic_config_ipaddr(adapter,
2600 ifa->ifa_address, QLCNIC_IP_UP);
2601 break;
2602 case NETDEV_DOWN:
2603 qlcnic_config_ipaddr(adapter,
2604 ifa->ifa_address, QLCNIC_IP_DOWN);
2605 break;
2606 default:
2607 break;
2608 }
2609 } endfor_ifa(indev);
2610
2611 in_dev_put(indev);
2612 return;
2613}
2614
2615static int qlcnic_netdev_event(struct notifier_block *this,
2616 unsigned long event, void *ptr)
2617{
2618 struct qlcnic_adapter *adapter;
2619 struct net_device *dev = (struct net_device *)ptr;
2620
2621recheck:
2622 if (dev == NULL)
2623 goto done;
2624
2625 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2626 dev = vlan_dev_real_dev(dev);
2627 goto recheck;
2628 }
2629
2630 if (!is_qlcnic_netdev(dev))
2631 goto done;
2632
2633 adapter = netdev_priv(dev);
2634
2635 if (!adapter)
2636 goto done;
2637
2638 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2639 goto done;
2640
2641 qlcnic_config_indev_addr(dev, event);
2642done:
2643 return NOTIFY_DONE;
2644}
2645
2646static int
2647qlcnic_inetaddr_event(struct notifier_block *this,
2648 unsigned long event, void *ptr)
2649{
2650 struct qlcnic_adapter *adapter;
2651 struct net_device *dev;
2652
2653 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2654
2655 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2656
2657recheck:
2658 if (dev == NULL || !netif_running(dev))
2659 goto done;
2660
2661 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2662 dev = vlan_dev_real_dev(dev);
2663 goto recheck;
2664 }
2665
2666 if (!is_qlcnic_netdev(dev))
2667 goto done;
2668
2669 adapter = netdev_priv(dev);
2670
2671 if (!adapter || !qlcnic_destip_supported(adapter))
2672 goto done;
2673
2674 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2675 goto done;
2676
2677 switch (event) {
2678 case NETDEV_UP:
2679 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
2680 break;
2681 case NETDEV_DOWN:
2682 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
2683 break;
2684 default:
2685 break;
2686 }
2687
2688done:
2689 return NOTIFY_DONE;
2690}
2691
2692static struct notifier_block qlcnic_netdev_cb = {
2693 .notifier_call = qlcnic_netdev_event,
2694};
2695
2696static struct notifier_block qlcnic_inetaddr_cb = {
2697 .notifier_call = qlcnic_inetaddr_event,
2698};
2699#else
2700static void
2701qlcnic_config_indev_addr(struct net_device *dev, unsigned long event)
2702{ }
2703#endif
2704
2705static struct pci_driver qlcnic_driver = {
2706 .name = qlcnic_driver_name,
2707 .id_table = qlcnic_pci_tbl,
2708 .probe = qlcnic_probe,
2709 .remove = __devexit_p(qlcnic_remove),
2710#ifdef CONFIG_PM
2711 .suspend = qlcnic_suspend,
2712 .resume = qlcnic_resume,
2713#endif
2714 .shutdown = qlcnic_shutdown
2715};
2716
2717static int __init qlcnic_init_module(void)
2718{
2719
2720 printk(KERN_INFO "%s\n", qlcnic_driver_string);
2721
2722#ifdef CONFIG_INET
2723 register_netdevice_notifier(&qlcnic_netdev_cb);
2724 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
2725#endif
2726
2727
2728 return pci_register_driver(&qlcnic_driver);
2729}
2730
2731module_init(qlcnic_init_module);
2732
2733static void __exit qlcnic_exit_module(void)
2734{
2735
2736 pci_unregister_driver(&qlcnic_driver);
2737
2738#ifdef CONFIG_INET
2739 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
2740 unregister_netdevice_notifier(&qlcnic_netdev_cb);
2741#endif
2742}
2743
2744module_exit(qlcnic_exit_module);
kernel source for telekom puls (alcatel/mediatek)