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netxen: minor suspend resume fixes
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / netxen / netxen_nic_main.c
blob41cb0af4b5566bde33174756bbc228732926f48d
1 /*
2 * Copyright (C) 2003 - 2009 NetXen, Inc.
3 * Copyright (C) 2009 - QLogic Corporation.
4 * All rights reserved.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
19 * MA 02111-1307, USA.
20 *
21 * The full GNU General Public License is included in this distribution
22 * in the file called LICENSE.
23 *
24 */
25
26 #include <linux/vmalloc.h>
27 #include <linux/interrupt.h>
28 #include "netxen_nic_hw.h"
29
30 #include "netxen_nic.h"
31
32 #include <linux/dma-mapping.h>
33 #include <linux/if_vlan.h>
34 #include <net/ip.h>
35 #include <linux/ipv6.h>
36 #include <linux/inetdevice.h>
37 #include <linux/sysfs.h>
38
39 MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Converged Ethernet Driver");
40 MODULE_LICENSE("GPL");
41 MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
42 MODULE_FIRMWARE(NX_P2_MN_ROMIMAGE_NAME);
43 MODULE_FIRMWARE(NX_P3_CT_ROMIMAGE_NAME);
44 MODULE_FIRMWARE(NX_P3_MN_ROMIMAGE_NAME);
45 MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
46
47 char netxen_nic_driver_name[] = "netxen_nic";
48 static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
49 NETXEN_NIC_LINUX_VERSIONID;
50
51 static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
52
53 /* Default to restricted 1G auto-neg mode */
54 static int wol_port_mode = 5;
55
56 static int use_msi = 1;
57
58 static int use_msi_x = 1;
59
60 static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
61 module_param(auto_fw_reset, int, 0644);
62 MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
63
64 static int __devinit netxen_nic_probe(struct pci_dev *pdev,
65 const struct pci_device_id *ent);
66 static void __devexit netxen_nic_remove(struct pci_dev *pdev);
67 static int netxen_nic_open(struct net_device *netdev);
68 static int netxen_nic_close(struct net_device *netdev);
69 static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
70 struct net_device *);
71 static void netxen_tx_timeout(struct net_device *netdev);
72 static void netxen_tx_timeout_task(struct work_struct *work);
73 static void netxen_fw_poll_work(struct work_struct *work);
74 static void netxen_schedule_work(struct netxen_adapter *adapter,
75 work_func_t func, int delay);
76 static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
77 static int netxen_nic_poll(struct napi_struct *napi, int budget);
78 #ifdef CONFIG_NET_POLL_CONTROLLER
79 static void netxen_nic_poll_controller(struct net_device *netdev);
80 #endif
81
82 static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
83 static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
84 static void netxen_create_diag_entries(struct netxen_adapter *adapter);
85 static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
86
87 static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
88 static int netxen_can_start_firmware(struct netxen_adapter *adapter);
89
90 static irqreturn_t netxen_intr(int irq, void *data);
91 static irqreturn_t netxen_msi_intr(int irq, void *data);
92 static irqreturn_t netxen_msix_intr(int irq, void *data);
93
94 static void netxen_config_indev_addr(struct net_device *dev, unsigned long);
95
96 /* PCI Device ID Table */
97 #define ENTRY(device) \
98 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
99 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
100
101 static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
102 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
103 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
104 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
105 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
106 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
107 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
108 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
109 ENTRY(PCI_DEVICE_ID_NX3031),
110 {0,}
111 };
112
113 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
114
115 static uint32_t crb_cmd_producer[4] = {
116 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
117 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
118 };
119
120 void
121 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
122 struct nx_host_tx_ring *tx_ring)
123 {
124 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
125
126 if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) {
127 netif_stop_queue(adapter->netdev);
128 smp_mb();
129 }
130 }
131
132 static uint32_t crb_cmd_consumer[4] = {
133 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
134 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
135 };
136
137 static inline void
138 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
139 struct nx_host_tx_ring *tx_ring)
140 {
141 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
142 }
143
144 static uint32_t msi_tgt_status[8] = {
145 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
146 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
147 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
148 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
149 };
150
151 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
152
153 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
154 {
155 struct netxen_adapter *adapter = sds_ring->adapter;
156
157 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
158 }
159
160 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
161 {
162 struct netxen_adapter *adapter = sds_ring->adapter;
163
164 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
165
166 if (!NETXEN_IS_MSI_FAMILY(adapter))
167 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
168 }
169
170 static int
171 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
172 {
173 int size = sizeof(struct nx_host_sds_ring) * count;
174
175 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
176
177 return (recv_ctx->sds_rings == NULL);
178 }
179
180 static void
181 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
182 {
183 if (recv_ctx->sds_rings != NULL)
184 kfree(recv_ctx->sds_rings);
185
186 recv_ctx->sds_rings = NULL;
187 }
188
189 static int
190 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
191 {
192 int ring;
193 struct nx_host_sds_ring *sds_ring;
194 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
195
196 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
197 return -ENOMEM;
198
199 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
200 sds_ring = &recv_ctx->sds_rings[ring];
201 netif_napi_add(netdev, &sds_ring->napi,
202 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
203 }
204
205 return 0;
206 }
207
208 static void
209 netxen_napi_del(struct netxen_adapter *adapter)
210 {
211 int ring;
212 struct nx_host_sds_ring *sds_ring;
213 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
214
215 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
216 sds_ring = &recv_ctx->sds_rings[ring];
217 netif_napi_del(&sds_ring->napi);
218 }
219
220 netxen_free_sds_rings(&adapter->recv_ctx);
221 }
222
223 static void
224 netxen_napi_enable(struct netxen_adapter *adapter)
225 {
226 int ring;
227 struct nx_host_sds_ring *sds_ring;
228 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
229
230 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
231 sds_ring = &recv_ctx->sds_rings[ring];
232 napi_enable(&sds_ring->napi);
233 netxen_nic_enable_int(sds_ring);
234 }
235 }
236
237 static void
238 netxen_napi_disable(struct netxen_adapter *adapter)
239 {
240 int ring;
241 struct nx_host_sds_ring *sds_ring;
242 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
243
244 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
245 sds_ring = &recv_ctx->sds_rings[ring];
246 netxen_nic_disable_int(sds_ring);
247 napi_synchronize(&sds_ring->napi);
248 napi_disable(&sds_ring->napi);
249 }
250 }
251
252 static int nx_set_dma_mask(struct netxen_adapter *adapter)
253 {
254 struct pci_dev *pdev = adapter->pdev;
255 uint64_t mask, cmask;
256
257 adapter->pci_using_dac = 0;
258
259 mask = DMA_BIT_MASK(32);
260 cmask = DMA_BIT_MASK(32);
261
262 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
263 #ifndef CONFIG_IA64
264 mask = DMA_BIT_MASK(35);
265 #endif
266 } else {
267 mask = DMA_BIT_MASK(39);
268 cmask = mask;
269 }
270
271 if (pci_set_dma_mask(pdev, mask) == 0 &&
272 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
273 adapter->pci_using_dac = 1;
274 return 0;
275 }
276
277 return -EIO;
278 }
279
280 /* Update addressable range if firmware supports it */
281 static int
282 nx_update_dma_mask(struct netxen_adapter *adapter)
283 {
284 int change, shift, err;
285 uint64_t mask, old_mask, old_cmask;
286 struct pci_dev *pdev = adapter->pdev;
287
288 change = 0;
289
290 shift = NXRD32(adapter, CRB_DMA_SHIFT);
291 if (shift > 32)
292 return 0;
293
294 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
295 change = 1;
296 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
297 change = 1;
298
299 if (change) {
300 old_mask = pdev->dma_mask;
301 old_cmask = pdev->dev.coherent_dma_mask;
302
303 mask = DMA_BIT_MASK(32+shift);
304
305 err = pci_set_dma_mask(pdev, mask);
306 if (err)
307 goto err_out;
308
309 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
310
311 err = pci_set_consistent_dma_mask(pdev, mask);
312 if (err)
313 goto err_out;
314 }
315 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
316 }
317
318 return 0;
319
320 err_out:
321 pci_set_dma_mask(pdev, old_mask);
322 pci_set_consistent_dma_mask(pdev, old_cmask);
323 return err;
324 }
325
326 static int
327 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
328 {
329 u32 val, timeout;
330
331 if (first_boot == 0x55555555) {
332 /* This is the first boot after power up */
333 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
334
335 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
336 return 0;
337
338 /* PCI bus master workaround */
339 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
340 if (!(first_boot & 0x4)) {
341 first_boot |= 0x4;
342 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
343 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
344 }
345
346 /* This is the first boot after power up */
347 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
348 if (first_boot != 0x80000f) {
349 /* clear the register for future unloads/loads */
350 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
351 return -EIO;
352 }
353
354 /* Start P2 boot loader */
355 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
356 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
357 timeout = 0;
358 do {
359 msleep(1);
360 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
361
362 if (++timeout > 5000)
363 return -EIO;
364
365 } while (val == NETXEN_BDINFO_MAGIC);
366 }
367 return 0;
368 }
369
370 static void netxen_set_port_mode(struct netxen_adapter *adapter)
371 {
372 u32 val, data;
373
374 val = adapter->ahw.board_type;
375 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
376 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
377 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
378 data = NETXEN_PORT_MODE_802_3_AP;
379 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
380 } else if (port_mode == NETXEN_PORT_MODE_XG) {
381 data = NETXEN_PORT_MODE_XG;
382 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
383 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
384 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
385 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
386 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
387 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
388 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
389 } else {
390 data = NETXEN_PORT_MODE_AUTO_NEG;
391 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
392 }
393
394 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
395 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
396 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
397 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
398 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
399 }
400 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
401 }
402 }
403
404 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
405 {
406 u32 control;
407 int pos;
408
409 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
410 if (pos) {
411 pci_read_config_dword(pdev, pos, &control);
412 if (enable)
413 control |= PCI_MSIX_FLAGS_ENABLE;
414 else
415 control = 0;
416 pci_write_config_dword(pdev, pos, control);
417 }
418 }
419
420 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
421 {
422 int i;
423
424 for (i = 0; i < count; i++)
425 adapter->msix_entries[i].entry = i;
426 }
427
428 static int
429 netxen_read_mac_addr(struct netxen_adapter *adapter)
430 {
431 int i;
432 unsigned char *p;
433 __le64 mac_addr;
434 struct net_device *netdev = adapter->netdev;
435 struct pci_dev *pdev = adapter->pdev;
436
437 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
438 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
439 return -EIO;
440 } else {
441 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
442 return -EIO;
443 }
444
445 p = (unsigned char *)&mac_addr;
446 for (i = 0; i < 6; i++)
447 netdev->dev_addr[i] = *(p + 5 - i);
448
449 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
450 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
451
452 /* set station address */
453
454 if (!is_valid_ether_addr(netdev->perm_addr))
455 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
456
457 return 0;
458 }
459
460 int netxen_nic_set_mac(struct net_device *netdev, void *p)
461 {
462 struct netxen_adapter *adapter = netdev_priv(netdev);
463 struct sockaddr *addr = p;
464
465 if (!is_valid_ether_addr(addr->sa_data))
466 return -EINVAL;
467
468 if (netif_running(netdev)) {
469 netif_device_detach(netdev);
470 netxen_napi_disable(adapter);
471 }
472
473 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
474 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
475 adapter->macaddr_set(adapter, addr->sa_data);
476
477 if (netif_running(netdev)) {
478 netif_device_attach(netdev);
479 netxen_napi_enable(adapter);
480 }
481 return 0;
482 }
483
484 static void netxen_set_multicast_list(struct net_device *dev)
485 {
486 struct netxen_adapter *adapter = netdev_priv(dev);
487
488 adapter->set_multi(dev);
489 }
490
491 static const struct net_device_ops netxen_netdev_ops = {
492 .ndo_open = netxen_nic_open,
493 .ndo_stop = netxen_nic_close,
494 .ndo_start_xmit = netxen_nic_xmit_frame,
495 .ndo_get_stats = netxen_nic_get_stats,
496 .ndo_validate_addr = eth_validate_addr,
497 .ndo_set_multicast_list = netxen_set_multicast_list,
498 .ndo_set_mac_address = netxen_nic_set_mac,
499 .ndo_change_mtu = netxen_nic_change_mtu,
500 .ndo_tx_timeout = netxen_tx_timeout,
501 #ifdef CONFIG_NET_POLL_CONTROLLER
502 .ndo_poll_controller = netxen_nic_poll_controller,
503 #endif
504 };
505
506 static void
507 netxen_setup_intr(struct netxen_adapter *adapter)
508 {
509 struct netxen_legacy_intr_set *legacy_intrp;
510 struct pci_dev *pdev = adapter->pdev;
511 int err, num_msix;
512
513 if (adapter->rss_supported) {
514 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
515 MSIX_ENTRIES_PER_ADAPTER : 2;
516 } else
517 num_msix = 1;
518
519 adapter->max_sds_rings = 1;
520
521 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
522
523 if (adapter->ahw.revision_id >= NX_P3_B0)
524 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
525 else
526 legacy_intrp = &legacy_intr[0];
527
528 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
529 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
530 legacy_intrp->tgt_status_reg);
531 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
532 legacy_intrp->tgt_mask_reg);
533 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
534 legacy_intrp->pci_int_reg);
535 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
536
537 if (adapter->ahw.revision_id >= NX_P3_B1)
538 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
539 ISR_INT_STATE_REG);
540 else
541 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
542 CRB_INT_VECTOR);
543
544 netxen_set_msix_bit(pdev, 0);
545
546 if (adapter->msix_supported) {
547
548 netxen_init_msix_entries(adapter, num_msix);
549 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
550 if (err == 0) {
551 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
552 netxen_set_msix_bit(pdev, 1);
553
554 if (adapter->rss_supported)
555 adapter->max_sds_rings = num_msix;
556
557 dev_info(&pdev->dev, "using msi-x interrupts\n");
558 return;
559 }
560
561 if (err > 0)
562 pci_disable_msix(pdev);
563
564 /* fall through for msi */
565 }
566
567 if (use_msi && !pci_enable_msi(pdev)) {
568 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
569 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
570 msi_tgt_status[adapter->ahw.pci_func]);
571 dev_info(&pdev->dev, "using msi interrupts\n");
572 adapter->msix_entries[0].vector = pdev->irq;
573 return;
574 }
575
576 dev_info(&pdev->dev, "using legacy interrupts\n");
577 adapter->msix_entries[0].vector = pdev->irq;
578 }
579
580 static void
581 netxen_teardown_intr(struct netxen_adapter *adapter)
582 {
583 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
584 pci_disable_msix(adapter->pdev);
585 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
586 pci_disable_msi(adapter->pdev);
587 }
588
589 static void
590 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
591 {
592 if (adapter->ahw.db_base != NULL)
593 iounmap(adapter->ahw.db_base);
594 if (adapter->ahw.pci_base0 != NULL)
595 iounmap(adapter->ahw.pci_base0);
596 if (adapter->ahw.pci_base1 != NULL)
597 iounmap(adapter->ahw.pci_base1);
598 if (adapter->ahw.pci_base2 != NULL)
599 iounmap(adapter->ahw.pci_base2);
600 }
601
602 static int
603 netxen_setup_pci_map(struct netxen_adapter *adapter)
604 {
605 void __iomem *mem_ptr0 = NULL;
606 void __iomem *mem_ptr1 = NULL;
607 void __iomem *mem_ptr2 = NULL;
608 void __iomem *db_ptr = NULL;
609
610 resource_size_t mem_base, db_base;
611 unsigned long mem_len, db_len = 0, pci_len0 = 0;
612
613 struct pci_dev *pdev = adapter->pdev;
614 int pci_func = adapter->ahw.pci_func;
615
616 int err = 0;
617
618 /*
619 * Set the CRB window to invalid. If any register in window 0 is
620 * accessed it should set the window to 0 and then reset it to 1.
621 */
622 adapter->ahw.crb_win = -1;
623 adapter->ahw.ocm_win = -1;
624
625 /* remap phys address */
626 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
627 mem_len = pci_resource_len(pdev, 0);
628
629 /* 128 Meg of memory */
630 if (mem_len == NETXEN_PCI_128MB_SIZE) {
631 mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
632 mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
633 SECOND_PAGE_GROUP_SIZE);
634 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
635 THIRD_PAGE_GROUP_SIZE);
636 pci_len0 = FIRST_PAGE_GROUP_SIZE;
637 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
638 mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
639 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
640 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
641 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
642
643 mem_ptr0 = pci_ioremap_bar(pdev, 0);
644 if (mem_ptr0 == NULL) {
645 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
646 return -EIO;
647 }
648 pci_len0 = mem_len;
649 } else {
650 return -EIO;
651 }
652
653 netxen_setup_hwops(adapter);
654
655 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
656
657 adapter->ahw.pci_base0 = mem_ptr0;
658 adapter->ahw.pci_len0 = pci_len0;
659 adapter->ahw.pci_base1 = mem_ptr1;
660 adapter->ahw.pci_base2 = mem_ptr2;
661
662 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
663 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
664 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
665
666 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
667 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
668 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
669 }
670
671 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
672 goto skip_doorbell;
673
674 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
675 db_len = pci_resource_len(pdev, 4);
676
677 if (db_len == 0) {
678 printk(KERN_ERR "%s: doorbell is disabled\n",
679 netxen_nic_driver_name);
680 err = -EIO;
681 goto err_out;
682 }
683
684 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
685 if (!db_ptr) {
686 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
687 netxen_nic_driver_name);
688 err = -EIO;
689 goto err_out;
690 }
691
692 skip_doorbell:
693 adapter->ahw.db_base = db_ptr;
694 adapter->ahw.db_len = db_len;
695 return 0;
696
697 err_out:
698 netxen_cleanup_pci_map(adapter);
699 return err;
700 }
701
702 static void
703 netxen_check_options(struct netxen_adapter *adapter)
704 {
705 u32 fw_major, fw_minor, fw_build;
706 char brd_name[NETXEN_MAX_SHORT_NAME];
707 char serial_num[32];
708 int i, offset, val;
709 int *ptr32;
710 struct pci_dev *pdev = adapter->pdev;
711
712 adapter->driver_mismatch = 0;
713
714 ptr32 = (int *)&serial_num;
715 offset = NX_FW_SERIAL_NUM_OFFSET;
716 for (i = 0; i < 8; i++) {
717 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
718 dev_err(&pdev->dev, "error reading board info\n");
719 adapter->driver_mismatch = 1;
720 return;
721 }
722 ptr32[i] = cpu_to_le32(val);
723 offset += sizeof(u32);
724 }
725
726 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
727 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
728 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
729
730 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
731
732 if (adapter->portnum == 0) {
733 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
734
735 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
736 module_name(THIS_MODULE),
737 brd_name, serial_num, adapter->ahw.revision_id);
738 }
739
740 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
741 adapter->driver_mismatch = 1;
742 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
743 fw_major, fw_minor, fw_build);
744 return;
745 }
746
747 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
748 i = NXRD32(adapter, NETXEN_SRE_MISC);
749 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
750 }
751
752 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
753 fw_major, fw_minor, fw_build,
754 adapter->ahw.cut_through ? "cut-through" : "legacy");
755
756 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
757 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
758
759 adapter->flags &= ~NETXEN_NIC_LRO_ENABLED;
760
761 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
762 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
763 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
764 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
765 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
766 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
767 }
768
769 adapter->msix_supported = 0;
770 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
771 adapter->msix_supported = !!use_msi_x;
772 adapter->rss_supported = !!use_msi_x;
773 } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) {
774 switch (adapter->ahw.board_type) {
775 case NETXEN_BRDTYPE_P2_SB31_10G:
776 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
777 adapter->msix_supported = !!use_msi_x;
778 adapter->rss_supported = !!use_msi_x;
779 break;
780 default:
781 break;
782 }
783 }
784
785 adapter->num_txd = MAX_CMD_DESCRIPTORS;
786
787 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
788 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
789 adapter->max_rds_rings = 3;
790 } else {
791 adapter->num_lro_rxd = 0;
792 adapter->max_rds_rings = 2;
793 }
794 }
795
796 static int
797 netxen_start_firmware(struct netxen_adapter *adapter)
798 {
799 int val, err, first_boot;
800 struct pci_dev *pdev = adapter->pdev;
801
802 /* required for NX2031 dummy dma */
803 err = nx_set_dma_mask(adapter);
804 if (err)
805 return err;
806
807 if (!netxen_can_start_firmware(adapter))
808 goto wait_init;
809
810 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
811
812 err = netxen_check_hw_init(adapter, first_boot);
813 if (err) {
814 dev_err(&pdev->dev, "error in init HW init sequence\n");
815 return err;
816 }
817
818 netxen_request_firmware(adapter);
819
820 err = netxen_need_fw_reset(adapter);
821 if (err < 0)
822 goto err_out;
823 if (err == 0)
824 goto wait_init;
825
826 if (first_boot != 0x55555555) {
827 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
828 netxen_pinit_from_rom(adapter);
829 msleep(1);
830 }
831
832 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
833 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
834 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
835
836 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
837 netxen_set_port_mode(adapter);
838
839 err = netxen_load_firmware(adapter);
840 if (err)
841 goto err_out;
842
843 netxen_release_firmware(adapter);
844
845 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
846
847 /* Initialize multicast addr pool owners */
848 val = 0x7654;
849 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
850 val |= 0x0f000000;
851 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
852
853 }
854
855 err = netxen_init_dummy_dma(adapter);
856 if (err)
857 goto err_out;
858
859 /*
860 * Tell the hardware our version number.
861 */
862 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
863 | ((_NETXEN_NIC_LINUX_MINOR << 8))
864 | (_NETXEN_NIC_LINUX_SUBVERSION);
865 NXWR32(adapter, CRB_DRIVER_VERSION, val);
866
867 wait_init:
868 /* Handshake with the card before we register the devices. */
869 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
870 if (err) {
871 netxen_free_dummy_dma(adapter);
872 goto err_out;
873 }
874
875 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
876
877 nx_update_dma_mask(adapter);
878
879 netxen_check_options(adapter);
880
881 adapter->need_fw_reset = 0;
882
883 /* fall through and release firmware */
884
885 err_out:
886 netxen_release_firmware(adapter);
887 return err;
888 }
889
890 static int
891 netxen_nic_request_irq(struct netxen_adapter *adapter)
892 {
893 irq_handler_t handler;
894 struct nx_host_sds_ring *sds_ring;
895 int err, ring;
896
897 unsigned long flags = IRQF_SAMPLE_RANDOM;
898 struct net_device *netdev = adapter->netdev;
899 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
900
901 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
902 handler = netxen_msix_intr;
903 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
904 handler = netxen_msi_intr;
905 else {
906 flags |= IRQF_SHARED;
907 handler = netxen_intr;
908 }
909 adapter->irq = netdev->irq;
910
911 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
912 sds_ring = &recv_ctx->sds_rings[ring];
913 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
914 err = request_irq(sds_ring->irq, handler,
915 flags, sds_ring->name, sds_ring);
916 if (err)
917 return err;
918 }
919
920 return 0;
921 }
922
923 static void
924 netxen_nic_free_irq(struct netxen_adapter *adapter)
925 {
926 int ring;
927 struct nx_host_sds_ring *sds_ring;
928
929 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
930
931 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
932 sds_ring = &recv_ctx->sds_rings[ring];
933 free_irq(sds_ring->irq, sds_ring);
934 }
935 }
936
937 static void
938 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
939 {
940 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
941 adapter->coal.normal.data.rx_time_us =
942 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
943 adapter->coal.normal.data.rx_packets =
944 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
945 adapter->coal.normal.data.tx_time_us =
946 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
947 adapter->coal.normal.data.tx_packets =
948 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
949 }
950
951 /* with rtnl_lock */
952 static int
953 __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
954 {
955 int err;
956
957 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
958 return -EIO;
959
960 err = adapter->init_port(adapter, adapter->physical_port);
961 if (err) {
962 printk(KERN_ERR "%s: Failed to initialize port %d\n",
963 netxen_nic_driver_name, adapter->portnum);
964 return err;
965 }
966 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
967 adapter->macaddr_set(adapter, adapter->mac_addr);
968
969 adapter->set_multi(netdev);
970 adapter->set_mtu(adapter, netdev->mtu);
971
972 adapter->ahw.linkup = 0;
973
974 if (adapter->max_sds_rings > 1)
975 netxen_config_rss(adapter, 1);
976
977 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
978 netxen_config_intr_coalesce(adapter);
979
980 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
981 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
982
983 netxen_napi_enable(adapter);
984
985 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
986 netxen_linkevent_request(adapter, 1);
987 else
988 netxen_nic_set_link_parameters(adapter);
989
990 set_bit(__NX_DEV_UP, &adapter->state);
991 return 0;
992 }
993
994 /* Usage: During resume and firmware recovery module.*/
995
996 static inline int
997 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
998 {
999 int err = 0;
1000
1001 rtnl_lock();
1002 if (netif_running(netdev))
1003 err = __netxen_nic_up(adapter, netdev);
1004 rtnl_unlock();
1005
1006 return err;
1007 }
1008
1009 /* with rtnl_lock */
1010 static void
1011 __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1012 {
1013 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1014 return;
1015
1016 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1017 return;
1018
1019 smp_mb();
1020 spin_lock(&adapter->tx_clean_lock);
1021 netif_carrier_off(netdev);
1022 netif_tx_disable(netdev);
1023
1024 if (adapter->stop_port)
1025 adapter->stop_port(adapter);
1026
1027 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1028 netxen_p3_free_mac_list(adapter);
1029
1030 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1031
1032 netxen_napi_disable(adapter);
1033
1034 netxen_release_tx_buffers(adapter);
1035 spin_unlock(&adapter->tx_clean_lock);
1036 }
1037
1038 /* Usage: During suspend and firmware recovery module */
1039
1040 static inline void
1041 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1042 {
1043 rtnl_lock();
1044 if (netif_running(netdev))
1045 __netxen_nic_down(adapter, netdev);
1046 rtnl_unlock();
1047
1048 }
1049
1050 static int
1051 netxen_nic_attach(struct netxen_adapter *adapter)
1052 {
1053 struct net_device *netdev = adapter->netdev;
1054 struct pci_dev *pdev = adapter->pdev;
1055 int err, ring;
1056 struct nx_host_rds_ring *rds_ring;
1057 struct nx_host_tx_ring *tx_ring;
1058
1059 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1060 return 0;
1061
1062 err = netxen_init_firmware(adapter);
1063 if (err)
1064 return err;
1065
1066 err = netxen_napi_add(adapter, netdev);
1067 if (err)
1068 return err;
1069
1070 err = netxen_alloc_sw_resources(adapter);
1071 if (err) {
1072 printk(KERN_ERR "%s: Error in setting sw resources\n",
1073 netdev->name);
1074 return err;
1075 }
1076
1077 err = netxen_alloc_hw_resources(adapter);
1078 if (err) {
1079 printk(KERN_ERR "%s: Error in setting hw resources\n",
1080 netdev->name);
1081 goto err_out_free_sw;
1082 }
1083
1084 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1085 tx_ring = adapter->tx_ring;
1086 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1087 crb_cmd_producer[adapter->portnum]);
1088 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1089 crb_cmd_consumer[adapter->portnum]);
1090
1091 tx_ring->producer = 0;
1092 tx_ring->sw_consumer = 0;
1093
1094 netxen_nic_update_cmd_producer(adapter, tx_ring);
1095 netxen_nic_update_cmd_consumer(adapter, tx_ring);
1096 }
1097
1098 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1099 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1100 netxen_post_rx_buffers(adapter, ring, rds_ring);
1101 }
1102
1103 err = netxen_nic_request_irq(adapter);
1104 if (err) {
1105 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1106 netdev->name);
1107 goto err_out_free_rxbuf;
1108 }
1109
1110 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1111 netxen_nic_init_coalesce_defaults(adapter);
1112
1113 netxen_create_sysfs_entries(adapter);
1114
1115 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1116 return 0;
1117
1118 err_out_free_rxbuf:
1119 netxen_release_rx_buffers(adapter);
1120 netxen_free_hw_resources(adapter);
1121 err_out_free_sw:
1122 netxen_free_sw_resources(adapter);
1123 return err;
1124 }
1125
1126 static void
1127 netxen_nic_detach(struct netxen_adapter *adapter)
1128 {
1129 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1130 return;
1131
1132 netxen_remove_sysfs_entries(adapter);
1133
1134 netxen_free_hw_resources(adapter);
1135 netxen_release_rx_buffers(adapter);
1136 netxen_nic_free_irq(adapter);
1137 netxen_napi_del(adapter);
1138 netxen_free_sw_resources(adapter);
1139
1140 adapter->is_up = 0;
1141 }
1142
1143 int
1144 netxen_nic_reset_context(struct netxen_adapter *adapter)
1145 {
1146 int err = 0;
1147 struct net_device *netdev = adapter->netdev;
1148
1149 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1150 return -EBUSY;
1151
1152 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1153
1154 netif_device_detach(netdev);
1155
1156 if (netif_running(netdev))
1157 __netxen_nic_down(adapter, netdev);
1158
1159 netxen_nic_detach(adapter);
1160
1161 if (netif_running(netdev)) {
1162 err = netxen_nic_attach(adapter);
1163 if (!err)
1164 err = __netxen_nic_up(adapter, netdev);
1165
1166 if (err)
1167 goto done;
1168 }
1169
1170 netif_device_attach(netdev);
1171 }
1172
1173 done:
1174 clear_bit(__NX_RESETTING, &adapter->state);
1175 return err;
1176 }
1177
1178 static int
1179 netxen_setup_netdev(struct netxen_adapter *adapter,
1180 struct net_device *netdev)
1181 {
1182 int err = 0;
1183 struct pci_dev *pdev = adapter->pdev;
1184
1185 adapter->rx_csum = 1;
1186 adapter->mc_enabled = 0;
1187 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1188 adapter->max_mc_count = 38;
1189 else
1190 adapter->max_mc_count = 16;
1191
1192 netdev->netdev_ops = &netxen_netdev_ops;
1193 netdev->watchdog_timeo = 2*HZ;
1194
1195 netxen_nic_change_mtu(netdev, netdev->mtu);
1196
1197 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1198
1199 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1200 netdev->features |= (NETIF_F_GRO);
1201 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1202
1203 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1204 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1205 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1206 }
1207
1208 if (adapter->pci_using_dac) {
1209 netdev->features |= NETIF_F_HIGHDMA;
1210 netdev->vlan_features |= NETIF_F_HIGHDMA;
1211 }
1212
1213 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1214 netdev->features |= (NETIF_F_HW_VLAN_TX);
1215
1216 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1217 netdev->features |= NETIF_F_LRO;
1218
1219 netdev->irq = adapter->msix_entries[0].vector;
1220
1221 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1222
1223 if (netxen_read_mac_addr(adapter))
1224 dev_warn(&pdev->dev, "failed to read mac addr\n");
1225
1226 netif_carrier_off(netdev);
1227 netif_stop_queue(netdev);
1228
1229 err = register_netdev(netdev);
1230 if (err) {
1231 dev_err(&pdev->dev, "failed to register net device\n");
1232 return err;
1233 }
1234
1235 return 0;
1236 }
1237
1238 static int __devinit
1239 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1240 {
1241 struct net_device *netdev = NULL;
1242 struct netxen_adapter *adapter = NULL;
1243 int i = 0, err;
1244 int pci_func_id = PCI_FUNC(pdev->devfn);
1245 uint8_t revision_id;
1246
1247 if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) {
1248 pr_warning("%s: chip revisions between 0x%x-0x%x"
1249 "will not be enabled.\n",
1250 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
1251 return -ENODEV;
1252 }
1253
1254 if ((err = pci_enable_device(pdev)))
1255 return err;
1256
1257 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1258 err = -ENODEV;
1259 goto err_out_disable_pdev;
1260 }
1261
1262 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1263 goto err_out_disable_pdev;
1264
1265 pci_set_master(pdev);
1266
1267 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1268 if(!netdev) {
1269 dev_err(&pdev->dev, "failed to allocate net_device\n");
1270 err = -ENOMEM;
1271 goto err_out_free_res;
1272 }
1273
1274 SET_NETDEV_DEV(netdev, &pdev->dev);
1275
1276 adapter = netdev_priv(netdev);
1277 adapter->netdev = netdev;
1278 adapter->pdev = pdev;
1279 adapter->ahw.pci_func = pci_func_id;
1280
1281 revision_id = pdev->revision;
1282 adapter->ahw.revision_id = revision_id;
1283
1284 rwlock_init(&adapter->ahw.crb_lock);
1285 spin_lock_init(&adapter->ahw.mem_lock);
1286
1287 spin_lock_init(&adapter->tx_clean_lock);
1288 INIT_LIST_HEAD(&adapter->mac_list);
1289
1290 err = netxen_setup_pci_map(adapter);
1291 if (err)
1292 goto err_out_free_netdev;
1293
1294 /* This will be reset for mezz cards */
1295 adapter->portnum = pci_func_id;
1296
1297 err = netxen_nic_get_board_info(adapter);
1298 if (err) {
1299 dev_err(&pdev->dev, "Error getting board config info.\n");
1300 goto err_out_iounmap;
1301 }
1302
1303 /* Mezz cards have PCI function 0,2,3 enabled */
1304 switch (adapter->ahw.board_type) {
1305 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1306 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1307 if (pci_func_id >= 2)
1308 adapter->portnum = pci_func_id - 2;
1309 break;
1310 default:
1311 break;
1312 }
1313
1314 err = netxen_start_firmware(adapter);
1315 if (err)
1316 goto err_out_decr_ref;
1317
1318 /*
1319 * See if the firmware gave us a virtual-physical port mapping.
1320 */
1321 adapter->physical_port = adapter->portnum;
1322 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1323 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1324 if (i != 0x55555555)
1325 adapter->physical_port = i;
1326 }
1327
1328 netxen_nic_clear_stats(adapter);
1329
1330 netxen_setup_intr(adapter);
1331
1332 err = netxen_setup_netdev(adapter, netdev);
1333 if (err)
1334 goto err_out_disable_msi;
1335
1336 pci_set_drvdata(pdev, adapter);
1337
1338 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1339
1340 switch (adapter->ahw.port_type) {
1341 case NETXEN_NIC_GBE:
1342 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1343 adapter->netdev->name);
1344 break;
1345 case NETXEN_NIC_XGBE:
1346 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1347 adapter->netdev->name);
1348 break;
1349 }
1350
1351 netxen_create_diag_entries(adapter);
1352
1353 return 0;
1354
1355 err_out_disable_msi:
1356 netxen_teardown_intr(adapter);
1357
1358 netxen_free_dummy_dma(adapter);
1359
1360 err_out_decr_ref:
1361 nx_decr_dev_ref_cnt(adapter);
1362
1363 err_out_iounmap:
1364 netxen_cleanup_pci_map(adapter);
1365
1366 err_out_free_netdev:
1367 free_netdev(netdev);
1368
1369 err_out_free_res:
1370 pci_release_regions(pdev);
1371
1372 err_out_disable_pdev:
1373 pci_set_drvdata(pdev, NULL);
1374 pci_disable_device(pdev);
1375 return err;
1376 }
1377
1378 static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1379 {
1380 struct netxen_adapter *adapter;
1381 struct net_device *netdev;
1382
1383 adapter = pci_get_drvdata(pdev);
1384 if (adapter == NULL)
1385 return;
1386
1387 netdev = adapter->netdev;
1388
1389 netxen_cancel_fw_work(adapter);
1390
1391 unregister_netdev(netdev);
1392
1393 cancel_work_sync(&adapter->tx_timeout_task);
1394
1395 netxen_nic_detach(adapter);
1396
1397 nx_decr_dev_ref_cnt(adapter);
1398
1399 if (adapter->portnum == 0)
1400 netxen_free_dummy_dma(adapter);
1401
1402 clear_bit(__NX_RESETTING, &adapter->state);
1403
1404 netxen_teardown_intr(adapter);
1405
1406 netxen_remove_diag_entries(adapter);
1407
1408 netxen_cleanup_pci_map(adapter);
1409
1410 netxen_release_firmware(adapter);
1411
1412 pci_release_regions(pdev);
1413 pci_disable_device(pdev);
1414 pci_set_drvdata(pdev, NULL);
1415
1416 free_netdev(netdev);
1417 }
1418 static int __netxen_nic_shutdown(struct pci_dev *pdev)
1419 {
1420 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1421 struct net_device *netdev = adapter->netdev;
1422 int retval;
1423
1424 netif_device_detach(netdev);
1425
1426 netxen_cancel_fw_work(adapter);
1427
1428 if (netif_running(netdev))
1429 netxen_nic_down(adapter, netdev);
1430
1431 cancel_work_sync(&adapter->tx_timeout_task);
1432
1433 netxen_nic_detach(adapter);
1434
1435 if (adapter->portnum == 0)
1436 netxen_free_dummy_dma(adapter);
1437
1438 nx_decr_dev_ref_cnt(adapter);
1439
1440 clear_bit(__NX_RESETTING, &adapter->state);
1441
1442 retval = pci_save_state(pdev);
1443 if (retval)
1444 return retval;
1445
1446 if (netxen_nic_wol_supported(adapter)) {
1447 pci_enable_wake(pdev, PCI_D3cold, 1);
1448 pci_enable_wake(pdev, PCI_D3hot, 1);
1449 }
1450
1451 return 0;
1452 }
1453 static void netxen_nic_shutdown(struct pci_dev *pdev)
1454 {
1455 if (__netxen_nic_shutdown(pdev))
1456 return;
1457
1458 pci_disable_device(pdev);
1459 }
1460 #ifdef CONFIG_PM
1461 static int
1462 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1463 {
1464 int retval;
1465
1466 retval = __netxen_nic_shutdown(pdev);
1467 if (retval)
1468 return retval;
1469
1470 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1471
1472 pci_disable_device(pdev);
1473 return 0;
1474 }
1475
1476 static int
1477 netxen_nic_resume(struct pci_dev *pdev)
1478 {
1479 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1480 struct net_device *netdev = adapter->netdev;
1481 int err;
1482
1483 err = pci_enable_device(pdev);
1484 if (err)
1485 return err;
1486
1487 pci_set_power_state(pdev, PCI_D0);
1488 pci_set_master(pdev);
1489 pci_restore_state(pdev);
1490
1491 adapter->ahw.crb_win = -1;
1492 adapter->ahw.ocm_win = -1;
1493
1494 err = netxen_start_firmware(adapter);
1495 if (err) {
1496 dev_err(&pdev->dev, "failed to start firmware\n");
1497 return err;
1498 }
1499
1500 if (netif_running(netdev)) {
1501 err = netxen_nic_attach(adapter);
1502 if (err)
1503 goto err_out;
1504
1505 err = netxen_nic_up(adapter, netdev);
1506 if (err)
1507 goto err_out_detach;
1508
1509 netxen_config_indev_addr(netdev, NETDEV_UP);
1510 }
1511
1512 netif_device_attach(netdev);
1513 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1514 return 0;
1515
1516 err_out_detach:
1517 netxen_nic_detach(adapter);
1518 err_out:
1519 nx_decr_dev_ref_cnt(adapter);
1520 return err;
1521 }
1522 #endif
1523
1524 static int netxen_nic_open(struct net_device *netdev)
1525 {
1526 struct netxen_adapter *adapter = netdev_priv(netdev);
1527 int err = 0;
1528
1529 if (adapter->driver_mismatch)
1530 return -EIO;
1531
1532 err = netxen_nic_attach(adapter);
1533 if (err)
1534 return err;
1535
1536 err = __netxen_nic_up(adapter, netdev);
1537 if (err)
1538 goto err_out;
1539
1540 netif_start_queue(netdev);
1541
1542 return 0;
1543
1544 err_out:
1545 netxen_nic_detach(adapter);
1546 return err;
1547 }
1548
1549 /*
1550 * netxen_nic_close - Disables a network interface entry point
1551 */
1552 static int netxen_nic_close(struct net_device *netdev)
1553 {
1554 struct netxen_adapter *adapter = netdev_priv(netdev);
1555
1556 __netxen_nic_down(adapter, netdev);
1557 return 0;
1558 }
1559
1560 static void
1561 netxen_tso_check(struct net_device *netdev,
1562 struct nx_host_tx_ring *tx_ring,
1563 struct cmd_desc_type0 *first_desc,
1564 struct sk_buff *skb)
1565 {
1566 u8 opcode = TX_ETHER_PKT;
1567 __be16 protocol = skb->protocol;
1568 u16 flags = 0, vid = 0;
1569 u32 producer;
1570 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1571 struct cmd_desc_type0 *hwdesc;
1572 struct vlan_ethhdr *vh;
1573
1574 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1575
1576 vh = (struct vlan_ethhdr *)skb->data;
1577 protocol = vh->h_vlan_encapsulated_proto;
1578 flags = FLAGS_VLAN_TAGGED;
1579
1580 } else if (vlan_tx_tag_present(skb)) {
1581
1582 flags = FLAGS_VLAN_OOB;
1583 vid = vlan_tx_tag_get(skb);
1584 netxen_set_tx_vlan_tci(first_desc, vid);
1585 vlan_oob = 1;
1586 }
1587
1588 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1589 skb_shinfo(skb)->gso_size > 0) {
1590
1591 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1592
1593 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1594 first_desc->total_hdr_length = hdr_len;
1595 if (vlan_oob) {
1596 first_desc->total_hdr_length += VLAN_HLEN;
1597 first_desc->tcp_hdr_offset = VLAN_HLEN;
1598 first_desc->ip_hdr_offset = VLAN_HLEN;
1599 /* Only in case of TSO on vlan device */
1600 flags |= FLAGS_VLAN_TAGGED;
1601 }
1602
1603 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1604 TX_TCP_LSO6 : TX_TCP_LSO;
1605 tso = 1;
1606
1607 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1608 u8 l4proto;
1609
1610 if (protocol == cpu_to_be16(ETH_P_IP)) {
1611 l4proto = ip_hdr(skb)->protocol;
1612
1613 if (l4proto == IPPROTO_TCP)
1614 opcode = TX_TCP_PKT;
1615 else if(l4proto == IPPROTO_UDP)
1616 opcode = TX_UDP_PKT;
1617 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1618 l4proto = ipv6_hdr(skb)->nexthdr;
1619
1620 if (l4proto == IPPROTO_TCP)
1621 opcode = TX_TCPV6_PKT;
1622 else if(l4proto == IPPROTO_UDP)
1623 opcode = TX_UDPV6_PKT;
1624 }
1625 }
1626
1627 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1628 first_desc->ip_hdr_offset += skb_network_offset(skb);
1629 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1630
1631 if (!tso)
1632 return;
1633
1634 /* For LSO, we need to copy the MAC/IP/TCP headers into
1635 * the descriptor ring
1636 */
1637 producer = tx_ring->producer;
1638 copied = 0;
1639 offset = 2;
1640
1641 if (vlan_oob) {
1642 /* Create a TSO vlan header template for firmware */
1643
1644 hwdesc = &tx_ring->desc_head[producer];
1645 tx_ring->cmd_buf_arr[producer].skb = NULL;
1646
1647 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1648 hdr_len + VLAN_HLEN);
1649
1650 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1651 skb_copy_from_linear_data(skb, vh, 12);
1652 vh->h_vlan_proto = htons(ETH_P_8021Q);
1653 vh->h_vlan_TCI = htons(vid);
1654 skb_copy_from_linear_data_offset(skb, 12,
1655 (char *)vh + 16, copy_len - 16);
1656
1657 copied = copy_len - VLAN_HLEN;
1658 offset = 0;
1659
1660 producer = get_next_index(producer, tx_ring->num_desc);
1661 }
1662
1663 while (copied < hdr_len) {
1664
1665 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1666 (hdr_len - copied));
1667
1668 hwdesc = &tx_ring->desc_head[producer];
1669 tx_ring->cmd_buf_arr[producer].skb = NULL;
1670
1671 skb_copy_from_linear_data_offset(skb, copied,
1672 (char *)hwdesc + offset, copy_len);
1673
1674 copied += copy_len;
1675 offset = 0;
1676
1677 producer = get_next_index(producer, tx_ring->num_desc);
1678 }
1679
1680 tx_ring->producer = producer;
1681 barrier();
1682 }
1683
1684 static int
1685 netxen_map_tx_skb(struct pci_dev *pdev,
1686 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1687 {
1688 struct netxen_skb_frag *nf;
1689 struct skb_frag_struct *frag;
1690 int i, nr_frags;
1691 dma_addr_t map;
1692
1693 nr_frags = skb_shinfo(skb)->nr_frags;
1694 nf = &pbuf->frag_array[0];
1695
1696 map = pci_map_single(pdev, skb->data,
1697 skb_headlen(skb), PCI_DMA_TODEVICE);
1698 if (pci_dma_mapping_error(pdev, map))
1699 goto out_err;
1700
1701 nf->dma = map;
1702 nf->length = skb_headlen(skb);
1703
1704 for (i = 0; i < nr_frags; i++) {
1705 frag = &skb_shinfo(skb)->frags[i];
1706 nf = &pbuf->frag_array[i+1];
1707
1708 map = pci_map_page(pdev, frag->page, frag->page_offset,
1709 frag->size, PCI_DMA_TODEVICE);
1710 if (pci_dma_mapping_error(pdev, map))
1711 goto unwind;
1712
1713 nf->dma = map;
1714 nf->length = frag->size;
1715 }
1716
1717 return 0;
1718
1719 unwind:
1720 while (--i >= 0) {
1721 nf = &pbuf->frag_array[i+1];
1722 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1723 }
1724
1725 nf = &pbuf->frag_array[0];
1726 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1727
1728 out_err:
1729 return -ENOMEM;
1730 }
1731
1732 static inline void
1733 netxen_clear_cmddesc(u64 *desc)
1734 {
1735 desc[0] = 0ULL;
1736 desc[2] = 0ULL;
1737 }
1738
1739 static netdev_tx_t
1740 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1741 {
1742 struct netxen_adapter *adapter = netdev_priv(netdev);
1743 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1744 struct netxen_cmd_buffer *pbuf;
1745 struct netxen_skb_frag *buffrag;
1746 struct cmd_desc_type0 *hwdesc, *first_desc;
1747 struct pci_dev *pdev;
1748 int i, k;
1749
1750 u32 producer;
1751 int frag_count, no_of_desc;
1752 u32 num_txd = tx_ring->num_desc;
1753
1754 frag_count = skb_shinfo(skb)->nr_frags + 1;
1755
1756 /* 4 fragments per cmd des */
1757 no_of_desc = (frag_count + 3) >> 2;
1758
1759 if (unlikely(no_of_desc + 2 > netxen_tx_avail(tx_ring))) {
1760 netif_stop_queue(netdev);
1761 return NETDEV_TX_BUSY;
1762 }
1763
1764 producer = tx_ring->producer;
1765 pbuf = &tx_ring->cmd_buf_arr[producer];
1766
1767 pdev = adapter->pdev;
1768
1769 if (netxen_map_tx_skb(pdev, skb, pbuf))
1770 goto drop_packet;
1771
1772 pbuf->skb = skb;
1773 pbuf->frag_count = frag_count;
1774
1775 first_desc = hwdesc = &tx_ring->desc_head[producer];
1776 netxen_clear_cmddesc((u64 *)hwdesc);
1777
1778 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1779 netxen_set_tx_port(first_desc, adapter->portnum);
1780
1781 for (i = 0; i < frag_count; i++) {
1782
1783 k = i % 4;
1784
1785 if ((k == 0) && (i > 0)) {
1786 /* move to next desc.*/
1787 producer = get_next_index(producer, num_txd);
1788 hwdesc = &tx_ring->desc_head[producer];
1789 netxen_clear_cmddesc((u64 *)hwdesc);
1790 tx_ring->cmd_buf_arr[producer].skb = NULL;
1791 }
1792
1793 buffrag = &pbuf->frag_array[i];
1794
1795 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
1796 switch (k) {
1797 case 0:
1798 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1799 break;
1800 case 1:
1801 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
1802 break;
1803 case 2:
1804 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
1805 break;
1806 case 3:
1807 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
1808 break;
1809 }
1810 }
1811
1812 tx_ring->producer = get_next_index(producer, num_txd);
1813
1814 netxen_tso_check(netdev, tx_ring, first_desc, skb);
1815
1816 netxen_nic_update_cmd_producer(adapter, tx_ring);
1817
1818 adapter->stats.txbytes += skb->len;
1819 adapter->stats.xmitcalled++;
1820
1821 return NETDEV_TX_OK;
1822
1823 drop_packet:
1824 adapter->stats.txdropped++;
1825 dev_kfree_skb_any(skb);
1826 return NETDEV_TX_OK;
1827 }
1828
1829 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1830 {
1831 struct net_device *netdev = adapter->netdev;
1832 uint32_t temp, temp_state, temp_val;
1833 int rv = 0;
1834
1835 temp = NXRD32(adapter, CRB_TEMP_STATE);
1836
1837 temp_state = nx_get_temp_state(temp);
1838 temp_val = nx_get_temp_val(temp);
1839
1840 if (temp_state == NX_TEMP_PANIC) {
1841 printk(KERN_ALERT
1842 "%s: Device temperature %d degrees C exceeds"
1843 " maximum allowed. Hardware has been shut down.\n",
1844 netdev->name, temp_val);
1845 rv = 1;
1846 } else if (temp_state == NX_TEMP_WARN) {
1847 if (adapter->temp == NX_TEMP_NORMAL) {
1848 printk(KERN_ALERT
1849 "%s: Device temperature %d degrees C "
1850 "exceeds operating range."
1851 " Immediate action needed.\n",
1852 netdev->name, temp_val);
1853 }
1854 } else {
1855 if (adapter->temp == NX_TEMP_WARN) {
1856 printk(KERN_INFO
1857 "%s: Device temperature is now %d degrees C"
1858 " in normal range.\n", netdev->name,
1859 temp_val);
1860 }
1861 }
1862 adapter->temp = temp_state;
1863 return rv;
1864 }
1865
1866 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
1867 {
1868 struct net_device *netdev = adapter->netdev;
1869
1870 if (adapter->ahw.linkup && !linkup) {
1871 printk(KERN_INFO "%s: %s NIC Link is down\n",
1872 netxen_nic_driver_name, netdev->name);
1873 adapter->ahw.linkup = 0;
1874 if (netif_running(netdev)) {
1875 netif_carrier_off(netdev);
1876 netif_stop_queue(netdev);
1877 }
1878 adapter->link_changed = !adapter->has_link_events;
1879 } else if (!adapter->ahw.linkup && linkup) {
1880 printk(KERN_INFO "%s: %s NIC Link is up\n",
1881 netxen_nic_driver_name, netdev->name);
1882 adapter->ahw.linkup = 1;
1883 if (netif_running(netdev)) {
1884 netif_carrier_on(netdev);
1885 netif_wake_queue(netdev);
1886 }
1887 adapter->link_changed = !adapter->has_link_events;
1888 }
1889 }
1890
1891 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1892 {
1893 u32 val, port, linkup;
1894
1895 port = adapter->physical_port;
1896
1897 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1898 val = NXRD32(adapter, CRB_XG_STATE_P3);
1899 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1900 linkup = (val == XG_LINK_UP_P3);
1901 } else {
1902 val = NXRD32(adapter, CRB_XG_STATE);
1903 if (adapter->ahw.port_type == NETXEN_NIC_GBE)
1904 linkup = (val >> port) & 1;
1905 else {
1906 val = (val >> port*8) & 0xff;
1907 linkup = (val == XG_LINK_UP);
1908 }
1909 }
1910
1911 netxen_advert_link_change(adapter, linkup);
1912 }
1913
1914 static void netxen_tx_timeout(struct net_device *netdev)
1915 {
1916 struct netxen_adapter *adapter = netdev_priv(netdev);
1917
1918 if (test_bit(__NX_RESETTING, &adapter->state))
1919 return;
1920
1921 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
1922 schedule_work(&adapter->tx_timeout_task);
1923 }
1924
1925 static void netxen_tx_timeout_task(struct work_struct *work)
1926 {
1927 struct netxen_adapter *adapter =
1928 container_of(work, struct netxen_adapter, tx_timeout_task);
1929
1930 if (!netif_running(adapter->netdev))
1931 return;
1932
1933 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1934 return;
1935
1936 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
1937 goto request_reset;
1938
1939 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1940 /* try to scrub interrupt */
1941 netxen_napi_disable(adapter);
1942
1943 adapter->netdev->trans_start = jiffies;
1944
1945 netxen_napi_enable(adapter);
1946
1947 netif_wake_queue(adapter->netdev);
1948
1949 clear_bit(__NX_RESETTING, &adapter->state);
1950
1951 } else {
1952 clear_bit(__NX_RESETTING, &adapter->state);
1953 if (!netxen_nic_reset_context(adapter)) {
1954 adapter->netdev->trans_start = jiffies;
1955 return;
1956 }
1957
1958 /* context reset failed, fall through for fw reset */
1959 }
1960
1961 request_reset:
1962 adapter->need_fw_reset = 1;
1963 clear_bit(__NX_RESETTING, &adapter->state);
1964 }
1965
1966 struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
1967 {
1968 struct netxen_adapter *adapter = netdev_priv(netdev);
1969 struct net_device_stats *stats = &netdev->stats;
1970
1971 memset(stats, 0, sizeof(*stats));
1972
1973 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
1974 stats->tx_packets = adapter->stats.xmitfinished;
1975 stats->rx_bytes = adapter->stats.rxbytes;
1976 stats->tx_bytes = adapter->stats.txbytes;
1977 stats->rx_dropped = adapter->stats.rxdropped;
1978 stats->tx_dropped = adapter->stats.txdropped;
1979
1980 return stats;
1981 }
1982
1983 static irqreturn_t netxen_intr(int irq, void *data)
1984 {
1985 struct nx_host_sds_ring *sds_ring = data;
1986 struct netxen_adapter *adapter = sds_ring->adapter;
1987 u32 status = 0;
1988
1989 status = readl(adapter->isr_int_vec);
1990
1991 if (!(status & adapter->int_vec_bit))
1992 return IRQ_NONE;
1993
1994 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1995 /* check interrupt state machine, to be sure */
1996 status = readl(adapter->crb_int_state_reg);
1997 if (!ISR_LEGACY_INT_TRIGGERED(status))
1998 return IRQ_NONE;
1999
2000 } else {
2001 unsigned long our_int = 0;
2002
2003 our_int = readl(adapter->crb_int_state_reg);
2004
2005 /* not our interrupt */
2006 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2007 return IRQ_NONE;
2008
2009 /* claim interrupt */
2010 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2011
2012 /* clear interrupt */
2013 netxen_nic_disable_int(sds_ring);
2014 }
2015
2016 writel(0xffffffff, adapter->tgt_status_reg);
2017 /* read twice to ensure write is flushed */
2018 readl(adapter->isr_int_vec);
2019 readl(adapter->isr_int_vec);
2020
2021 napi_schedule(&sds_ring->napi);
2022
2023 return IRQ_HANDLED;
2024 }
2025
2026 static irqreturn_t netxen_msi_intr(int irq, void *data)
2027 {
2028 struct nx_host_sds_ring *sds_ring = data;
2029 struct netxen_adapter *adapter = sds_ring->adapter;
2030
2031 /* clear interrupt */
2032 writel(0xffffffff, adapter->tgt_status_reg);
2033
2034 napi_schedule(&sds_ring->napi);
2035 return IRQ_HANDLED;
2036 }
2037
2038 static irqreturn_t netxen_msix_intr(int irq, void *data)
2039 {
2040 struct nx_host_sds_ring *sds_ring = data;
2041
2042 napi_schedule(&sds_ring->napi);
2043 return IRQ_HANDLED;
2044 }
2045
2046 static int netxen_nic_poll(struct napi_struct *napi, int budget)
2047 {
2048 struct nx_host_sds_ring *sds_ring =
2049 container_of(napi, struct nx_host_sds_ring, napi);
2050
2051 struct netxen_adapter *adapter = sds_ring->adapter;
2052
2053 int tx_complete;
2054 int work_done;
2055
2056 tx_complete = netxen_process_cmd_ring(adapter);
2057
2058 work_done = netxen_process_rcv_ring(sds_ring, budget);
2059
2060 if ((work_done < budget) && tx_complete) {
2061 napi_complete(&sds_ring->napi);
2062 if (test_bit(__NX_DEV_UP, &adapter->state))
2063 netxen_nic_enable_int(sds_ring);
2064 }
2065
2066 return work_done;
2067 }
2068
2069 #ifdef CONFIG_NET_POLL_CONTROLLER
2070 static void netxen_nic_poll_controller(struct net_device *netdev)
2071 {
2072 struct netxen_adapter *adapter = netdev_priv(netdev);
2073 disable_irq(adapter->irq);
2074 netxen_intr(adapter->irq, adapter);
2075 enable_irq(adapter->irq);
2076 }
2077 #endif
2078
2079 static int
2080 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2081 {
2082 int count;
2083 if (netxen_api_lock(adapter))
2084 return -EIO;
2085
2086 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2087
2088 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2089
2090 netxen_api_unlock(adapter);
2091 return count;
2092 }
2093
2094 static int
2095 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2096 {
2097 int count;
2098 if (netxen_api_lock(adapter))
2099 return -EIO;
2100
2101 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2102 WARN_ON(count == 0);
2103
2104 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2105
2106 if (count == 0)
2107 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2108
2109 netxen_api_unlock(adapter);
2110 return count;
2111 }
2112
2113 static void
2114 nx_dev_request_reset(struct netxen_adapter *adapter)
2115 {
2116 u32 state;
2117
2118 if (netxen_api_lock(adapter))
2119 return;
2120
2121 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2122
2123 if (state != NX_DEV_INITALIZING)
2124 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2125
2126 netxen_api_unlock(adapter);
2127 }
2128
2129 static int
2130 netxen_can_start_firmware(struct netxen_adapter *adapter)
2131 {
2132 int count;
2133 int can_start = 0;
2134
2135 if (netxen_api_lock(adapter))
2136 return 0;
2137
2138 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2139
2140 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2141 count = 0;
2142
2143 if (count == 0) {
2144 can_start = 1;
2145 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2146 }
2147
2148 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2149
2150 netxen_api_unlock(adapter);
2151
2152 return can_start;
2153 }
2154
2155 static void
2156 netxen_schedule_work(struct netxen_adapter *adapter,
2157 work_func_t func, int delay)
2158 {
2159 INIT_DELAYED_WORK(&adapter->fw_work, func);
2160 schedule_delayed_work(&adapter->fw_work, delay);
2161 }
2162
2163 static void
2164 netxen_cancel_fw_work(struct netxen_adapter *adapter)
2165 {
2166 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2167 msleep(10);
2168
2169 cancel_delayed_work_sync(&adapter->fw_work);
2170 }
2171
2172 static void
2173 netxen_attach_work(struct work_struct *work)
2174 {
2175 struct netxen_adapter *adapter = container_of(work,
2176 struct netxen_adapter, fw_work.work);
2177 struct net_device *netdev = adapter->netdev;
2178 int err = 0;
2179
2180 if (netif_running(netdev)) {
2181 err = netxen_nic_attach(adapter);
2182 if (err)
2183 goto done;
2184
2185 err = netxen_nic_up(adapter, netdev);
2186 if (err) {
2187 netxen_nic_detach(adapter);
2188 goto done;
2189 }
2190
2191 netxen_config_indev_addr(netdev, NETDEV_UP);
2192 }
2193
2194 netif_device_attach(netdev);
2195
2196 done:
2197 adapter->fw_fail_cnt = 0;
2198 clear_bit(__NX_RESETTING, &adapter->state);
2199 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2200 }
2201
2202 static void
2203 netxen_fwinit_work(struct work_struct *work)
2204 {
2205 struct netxen_adapter *adapter = container_of(work,
2206 struct netxen_adapter, fw_work.work);
2207 int dev_state;
2208
2209 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2210
2211 switch (dev_state) {
2212 case NX_DEV_COLD:
2213 case NX_DEV_READY:
2214 if (!netxen_start_firmware(adapter)) {
2215 netxen_schedule_work(adapter, netxen_attach_work, 0);
2216 return;
2217 }
2218 break;
2219
2220 case NX_DEV_INITALIZING:
2221 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2222 netxen_schedule_work(adapter,
2223 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2224 return;
2225 }
2226
2227 case NX_DEV_FAILED:
2228 default:
2229 nx_incr_dev_ref_cnt(adapter);
2230 break;
2231 }
2232
2233 clear_bit(__NX_RESETTING, &adapter->state);
2234 }
2235
2236 static void
2237 netxen_detach_work(struct work_struct *work)
2238 {
2239 struct netxen_adapter *adapter = container_of(work,
2240 struct netxen_adapter, fw_work.work);
2241 struct net_device *netdev = adapter->netdev;
2242 int ref_cnt, delay;
2243 u32 status;
2244
2245 netif_device_detach(netdev);
2246
2247 netxen_nic_down(adapter, netdev);
2248
2249 netxen_nic_detach(adapter);
2250
2251 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2252
2253 if (status & NX_RCODE_FATAL_ERROR)
2254 goto err_ret;
2255
2256 if (adapter->temp == NX_TEMP_PANIC)
2257 goto err_ret;
2258
2259 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2260
2261 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2262
2263 adapter->fw_wait_cnt = 0;
2264 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2265
2266 return;
2267
2268 err_ret:
2269 clear_bit(__NX_RESETTING, &adapter->state);
2270 }
2271
2272 static int
2273 netxen_check_health(struct netxen_adapter *adapter)
2274 {
2275 u32 state, heartbit;
2276 struct net_device *netdev = adapter->netdev;
2277
2278 if (netxen_nic_check_temp(adapter))
2279 goto detach;
2280
2281 if (adapter->need_fw_reset) {
2282 nx_dev_request_reset(adapter);
2283 goto detach;
2284 }
2285
2286 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2287 if (state == NX_DEV_NEED_RESET)
2288 goto detach;
2289
2290 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2291 return 0;
2292
2293 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2294 if (heartbit != adapter->heartbit) {
2295 adapter->heartbit = heartbit;
2296 adapter->fw_fail_cnt = 0;
2297 return 0;
2298 }
2299
2300 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2301 return 0;
2302
2303 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2304
2305 dev_info(&netdev->dev, "firmware hang detected\n");
2306
2307 detach:
2308 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2309 !test_and_set_bit(__NX_RESETTING, &adapter->state))
2310 netxen_schedule_work(adapter, netxen_detach_work, 0);
2311 return 1;
2312 }
2313
2314 static void
2315 netxen_fw_poll_work(struct work_struct *work)
2316 {
2317 struct netxen_adapter *adapter = container_of(work,
2318 struct netxen_adapter, fw_work.work);
2319
2320 if (test_bit(__NX_RESETTING, &adapter->state))
2321 goto reschedule;
2322
2323 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2324 if (!adapter->has_link_events) {
2325
2326 netxen_nic_handle_phy_intr(adapter);
2327
2328 if (adapter->link_changed)
2329 netxen_nic_set_link_parameters(adapter);
2330 }
2331 }
2332
2333 if (netxen_check_health(adapter))
2334 return;
2335
2336 reschedule:
2337 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2338 }
2339
2340 static ssize_t
2341 netxen_store_bridged_mode(struct device *dev,
2342 struct device_attribute *attr, const char *buf, size_t len)
2343 {
2344 struct net_device *net = to_net_dev(dev);
2345 struct netxen_adapter *adapter = netdev_priv(net);
2346 unsigned long new;
2347 int ret = -EINVAL;
2348
2349 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2350 goto err_out;
2351
2352 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2353 goto err_out;
2354
2355 if (strict_strtoul(buf, 2, &new))
2356 goto err_out;
2357
2358 if (!netxen_config_bridged_mode(adapter, !!new))
2359 ret = len;
2360
2361 err_out:
2362 return ret;
2363 }
2364
2365 static ssize_t
2366 netxen_show_bridged_mode(struct device *dev,
2367 struct device_attribute *attr, char *buf)
2368 {
2369 struct net_device *net = to_net_dev(dev);
2370 struct netxen_adapter *adapter;
2371 int bridged_mode = 0;
2372
2373 adapter = netdev_priv(net);
2374
2375 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2376 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2377
2378 return sprintf(buf, "%d\n", bridged_mode);
2379 }
2380
2381 static struct device_attribute dev_attr_bridged_mode = {
2382 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2383 .show = netxen_show_bridged_mode,
2384 .store = netxen_store_bridged_mode,
2385 };
2386
2387 static ssize_t
2388 netxen_store_diag_mode(struct device *dev,
2389 struct device_attribute *attr, const char *buf, size_t len)
2390 {
2391 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2392 unsigned long new;
2393
2394 if (strict_strtoul(buf, 2, &new))
2395 return -EINVAL;
2396
2397 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2398 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2399
2400 return len;
2401 }
2402
2403 static ssize_t
2404 netxen_show_diag_mode(struct device *dev,
2405 struct device_attribute *attr, char *buf)
2406 {
2407 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2408
2409 return sprintf(buf, "%d\n",
2410 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2411 }
2412
2413 static struct device_attribute dev_attr_diag_mode = {
2414 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2415 .show = netxen_show_diag_mode,
2416 .store = netxen_store_diag_mode,
2417 };
2418
2419 static int
2420 netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2421 loff_t offset, size_t size)
2422 {
2423 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2424 return -EIO;
2425
2426 if ((size != 4) || (offset & 0x3))
2427 return -EINVAL;
2428
2429 if (offset < NETXEN_PCI_CRBSPACE)
2430 return -EINVAL;
2431
2432 return 0;
2433 }
2434
2435 static ssize_t
2436 netxen_sysfs_read_crb(struct kobject *kobj, struct bin_attribute *attr,
2437 char *buf, loff_t offset, size_t size)
2438 {
2439 struct device *dev = container_of(kobj, struct device, kobj);
2440 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2441 u32 data;
2442 int ret;
2443
2444 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2445 if (ret != 0)
2446 return ret;
2447
2448 data = NXRD32(adapter, offset);
2449 memcpy(buf, &data, size);
2450 return size;
2451 }
2452
2453 static ssize_t
2454 netxen_sysfs_write_crb(struct kobject *kobj, struct bin_attribute *attr,
2455 char *buf, loff_t offset, size_t size)
2456 {
2457 struct device *dev = container_of(kobj, struct device, kobj);
2458 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2459 u32 data;
2460 int ret;
2461
2462 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2463 if (ret != 0)
2464 return ret;
2465
2466 memcpy(&data, buf, size);
2467 NXWR32(adapter, offset, data);
2468 return size;
2469 }
2470
2471 static int
2472 netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2473 loff_t offset, size_t size)
2474 {
2475 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2476 return -EIO;
2477
2478 if ((size != 8) || (offset & 0x7))
2479 return -EIO;
2480
2481 return 0;
2482 }
2483
2484 static ssize_t
2485 netxen_sysfs_read_mem(struct kobject *kobj, struct bin_attribute *attr,
2486 char *buf, loff_t offset, size_t size)
2487 {
2488 struct device *dev = container_of(kobj, struct device, kobj);
2489 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2490 u64 data;
2491 int ret;
2492
2493 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2494 if (ret != 0)
2495 return ret;
2496
2497 if (adapter->pci_mem_read(adapter, offset, &data))
2498 return -EIO;
2499
2500 memcpy(buf, &data, size);
2501
2502 return size;
2503 }
2504
2505 ssize_t netxen_sysfs_write_mem(struct kobject *kobj,
2506 struct bin_attribute *attr, char *buf,
2507 loff_t offset, size_t size)
2508 {
2509 struct device *dev = container_of(kobj, struct device, kobj);
2510 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2511 u64 data;
2512 int ret;
2513
2514 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2515 if (ret != 0)
2516 return ret;
2517
2518 memcpy(&data, buf, size);
2519
2520 if (adapter->pci_mem_write(adapter, offset, data))
2521 return -EIO;
2522
2523 return size;
2524 }
2525
2526
2527 static struct bin_attribute bin_attr_crb = {
2528 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2529 .size = 0,
2530 .read = netxen_sysfs_read_crb,
2531 .write = netxen_sysfs_write_crb,
2532 };
2533
2534 static struct bin_attribute bin_attr_mem = {
2535 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2536 .size = 0,
2537 .read = netxen_sysfs_read_mem,
2538 .write = netxen_sysfs_write_mem,
2539 };
2540
2541
2542 static void
2543 netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2544 {
2545 struct net_device *netdev = adapter->netdev;
2546 struct device *dev = &netdev->dev;
2547
2548 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2549 /* bridged_mode control */
2550 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2551 dev_warn(&netdev->dev,
2552 "failed to create bridged_mode sysfs entry\n");
2553 }
2554 }
2555 }
2556
2557 static void
2558 netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2559 {
2560 struct net_device *netdev = adapter->netdev;
2561 struct device *dev = &netdev->dev;
2562
2563 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2564 device_remove_file(dev, &dev_attr_bridged_mode);
2565 }
2566
2567 static void
2568 netxen_create_diag_entries(struct netxen_adapter *adapter)
2569 {
2570 struct pci_dev *pdev = adapter->pdev;
2571 struct device *dev;
2572
2573 dev = &pdev->dev;
2574 if (device_create_file(dev, &dev_attr_diag_mode))
2575 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2576 if (device_create_bin_file(dev, &bin_attr_crb))
2577 dev_info(dev, "failed to create crb sysfs entry\n");
2578 if (device_create_bin_file(dev, &bin_attr_mem))
2579 dev_info(dev, "failed to create mem sysfs entry\n");
2580 }
2581
2582
2583 static void
2584 netxen_remove_diag_entries(struct netxen_adapter *adapter)
2585 {
2586 struct pci_dev *pdev = adapter->pdev;
2587 struct device *dev = &pdev->dev;
2588
2589 device_remove_file(dev, &dev_attr_diag_mode);
2590 device_remove_bin_file(dev, &bin_attr_crb);
2591 device_remove_bin_file(dev, &bin_attr_mem);
2592 }
2593
2594 #ifdef CONFIG_INET
2595
2596 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2597
2598 static int
2599 netxen_destip_supported(struct netxen_adapter *adapter)
2600 {
2601 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2602 return 0;
2603
2604 if (adapter->ahw.cut_through)
2605 return 0;
2606
2607 return 1;
2608 }
2609
2610 static void
2611 netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2612 {
2613 struct in_device *indev;
2614 struct netxen_adapter *adapter = netdev_priv(dev);
2615
2616 if (!netxen_destip_supported(adapter))
2617 return;
2618
2619 indev = in_dev_get(dev);
2620 if (!indev)
2621 return;
2622
2623 for_ifa(indev) {
2624 switch (event) {
2625 case NETDEV_UP:
2626 netxen_config_ipaddr(adapter,
2627 ifa->ifa_address, NX_IP_UP);
2628 break;
2629 case NETDEV_DOWN:
2630 netxen_config_ipaddr(adapter,
2631 ifa->ifa_address, NX_IP_DOWN);
2632 break;
2633 default:
2634 break;
2635 }
2636 } endfor_ifa(indev);
2637
2638 in_dev_put(indev);
2639 return;
2640 }
2641
2642 static int netxen_netdev_event(struct notifier_block *this,
2643 unsigned long event, void *ptr)
2644 {
2645 struct netxen_adapter *adapter;
2646 struct net_device *dev = (struct net_device *)ptr;
2647
2648 recheck:
2649 if (dev == NULL)
2650 goto done;
2651
2652 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2653 dev = vlan_dev_real_dev(dev);
2654 goto recheck;
2655 }
2656
2657 if (!is_netxen_netdev(dev))
2658 goto done;
2659
2660 adapter = netdev_priv(dev);
2661
2662 if (!adapter)
2663 goto done;
2664
2665 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2666 goto done;
2667
2668 netxen_config_indev_addr(dev, event);
2669 done:
2670 return NOTIFY_DONE;
2671 }
2672
2673 static int
2674 netxen_inetaddr_event(struct notifier_block *this,
2675 unsigned long event, void *ptr)
2676 {
2677 struct netxen_adapter *adapter;
2678 struct net_device *dev;
2679
2680 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2681
2682 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2683
2684 recheck:
2685 if (dev == NULL || !netif_running(dev))
2686 goto done;
2687
2688 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2689 dev = vlan_dev_real_dev(dev);
2690 goto recheck;
2691 }
2692
2693 if (!is_netxen_netdev(dev))
2694 goto done;
2695
2696 adapter = netdev_priv(dev);
2697
2698 if (!adapter || !netxen_destip_supported(adapter))
2699 goto done;
2700
2701 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2702 goto done;
2703
2704 switch (event) {
2705 case NETDEV_UP:
2706 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2707 break;
2708 case NETDEV_DOWN:
2709 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2710 break;
2711 default:
2712 break;
2713 }
2714
2715 done:
2716 return NOTIFY_DONE;
2717 }
2718
2719 static struct notifier_block netxen_netdev_cb = {
2720 .notifier_call = netxen_netdev_event,
2721 };
2722
2723 static struct notifier_block netxen_inetaddr_cb = {
2724 .notifier_call = netxen_inetaddr_event,
2725 };
2726 #else
2727 static void
2728 netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2729 { }
2730 #endif
2731
2732 static struct pci_driver netxen_driver = {
2733 .name = netxen_nic_driver_name,
2734 .id_table = netxen_pci_tbl,
2735 .probe = netxen_nic_probe,
2736 .remove = __devexit_p(netxen_nic_remove),
2737 #ifdef CONFIG_PM
2738 .suspend = netxen_nic_suspend,
2739 .resume = netxen_nic_resume,
2740 #endif
2741 .shutdown = netxen_nic_shutdown
2742 };
2743
2744 static int __init netxen_init_module(void)
2745 {
2746 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2747
2748 #ifdef CONFIG_INET
2749 register_netdevice_notifier(&netxen_netdev_cb);
2750 register_inetaddr_notifier(&netxen_inetaddr_cb);
2751 #endif
2752 return pci_register_driver(&netxen_driver);
2753 }
2754
2755 module_init(netxen_init_module);
2756
2757 static void __exit netxen_exit_module(void)
2758 {
2759 pci_unregister_driver(&netxen_driver);
2760
2761 #ifdef CONFIG_INET
2762 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2763 unregister_netdevice_notifier(&netxen_netdev_cb);
2764 #endif
2765 }
2766
2767 module_exit(netxen_exit_module);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree