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Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
[deliverable/linux.git] / drivers / net / netxen / netxen_nic_main.c
1 /*
2 * Copyright (C) 2003 - 2009 NetXen, Inc.
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 LICENSE.
22 *
23 * Contact Information:
24 * info@netxen.com
25 * NetXen Inc,
26 * 18922 Forge Drive
27 * Cupertino, CA 95014-0701
28 *
29 */
30
31 #include <linux/vmalloc.h>
32 #include <linux/interrupt.h>
33 #include "netxen_nic_hw.h"
34
35 #include "netxen_nic.h"
36 #include "netxen_nic_phan_reg.h"
37
38 #include <linux/dma-mapping.h>
39 #include <linux/if_vlan.h>
40 #include <net/ip.h>
41 #include <linux/ipv6.h>
42 #include <linux/inetdevice.h>
43
44 MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver");
45 MODULE_LICENSE("GPL");
46 MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
47
48 char netxen_nic_driver_name[] = "netxen_nic";
49 static char netxen_nic_driver_string[] = "NetXen Network Driver version "
50 NETXEN_NIC_LINUX_VERSIONID;
51
52 static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
53
54 /* Default to restricted 1G auto-neg mode */
55 static int wol_port_mode = 5;
56
57 static int use_msi = 1;
58
59 static int use_msi_x = 1;
60
61 /* Local functions to NetXen NIC driver */
62 static int __devinit netxen_nic_probe(struct pci_dev *pdev,
63 const struct pci_device_id *ent);
64 static void __devexit netxen_nic_remove(struct pci_dev *pdev);
65 static int netxen_nic_open(struct net_device *netdev);
66 static int netxen_nic_close(struct net_device *netdev);
67 static int netxen_nic_xmit_frame(struct sk_buff *, struct net_device *);
68 static void netxen_tx_timeout(struct net_device *netdev);
69 static void netxen_reset_task(struct work_struct *work);
70 static void netxen_watchdog(unsigned long);
71 static int netxen_nic_poll(struct napi_struct *napi, int budget);
72 #ifdef CONFIG_NET_POLL_CONTROLLER
73 static void netxen_nic_poll_controller(struct net_device *netdev);
74 #endif
75 static irqreturn_t netxen_intr(int irq, void *data);
76 static irqreturn_t netxen_msi_intr(int irq, void *data);
77 static irqreturn_t netxen_msix_intr(int irq, void *data);
78
79 /* PCI Device ID Table */
80 #define ENTRY(device) \
81 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
82 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
83
84 static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
85 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
86 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
87 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
88 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
89 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
90 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
91 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
92 ENTRY(PCI_DEVICE_ID_NX3031),
93 {0,}
94 };
95
96 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
97
98 static void netxen_watchdog(unsigned long);
99
100 static uint32_t crb_cmd_producer[4] = {
101 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
102 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
103 };
104
105 void
106 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
107 struct nx_host_tx_ring *tx_ring)
108 {
109 NXWR32(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
110
111 if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) {
112 netif_stop_queue(adapter->netdev);
113 smp_mb();
114 }
115 }
116
117 static uint32_t crb_cmd_consumer[4] = {
118 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
119 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
120 };
121
122 static inline void
123 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
124 struct nx_host_tx_ring *tx_ring)
125 {
126 NXWR32(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
127 }
128
129 static uint32_t msi_tgt_status[8] = {
130 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
131 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
132 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
133 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
134 };
135
136 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
137
138 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
139 {
140 struct netxen_adapter *adapter = sds_ring->adapter;
141
142 NXWR32(adapter, sds_ring->crb_intr_mask, 0);
143 }
144
145 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
146 {
147 struct netxen_adapter *adapter = sds_ring->adapter;
148
149 NXWR32(adapter, sds_ring->crb_intr_mask, 0x1);
150
151 if (!NETXEN_IS_MSI_FAMILY(adapter))
152 adapter->pci_write_immediate(adapter,
153 adapter->legacy_intr.tgt_mask_reg, 0xfbff);
154 }
155
156 static int
157 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
158 {
159 int size = sizeof(struct nx_host_sds_ring) * count;
160
161 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
162
163 return (recv_ctx->sds_rings == NULL);
164 }
165
166 static void
167 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
168 {
169 if (recv_ctx->sds_rings != NULL)
170 kfree(recv_ctx->sds_rings);
171
172 recv_ctx->sds_rings = NULL;
173 }
174
175 static int
176 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
177 {
178 int ring;
179 struct nx_host_sds_ring *sds_ring;
180 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
181
182 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
183 return -ENOMEM;
184
185 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
186 sds_ring = &recv_ctx->sds_rings[ring];
187 netif_napi_add(netdev, &sds_ring->napi,
188 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
189 }
190
191 return 0;
192 }
193
194 static void
195 netxen_napi_del(struct netxen_adapter *adapter)
196 {
197 int ring;
198 struct nx_host_sds_ring *sds_ring;
199 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
200
201 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
202 sds_ring = &recv_ctx->sds_rings[ring];
203 netif_napi_del(&sds_ring->napi);
204 }
205
206 netxen_free_sds_rings(&adapter->recv_ctx);
207 }
208
209 static void
210 netxen_napi_enable(struct netxen_adapter *adapter)
211 {
212 int ring;
213 struct nx_host_sds_ring *sds_ring;
214 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
215
216 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
217 sds_ring = &recv_ctx->sds_rings[ring];
218 napi_enable(&sds_ring->napi);
219 netxen_nic_enable_int(sds_ring);
220 }
221 }
222
223 static void
224 netxen_napi_disable(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 netxen_nic_disable_int(sds_ring);
233 napi_synchronize(&sds_ring->napi);
234 napi_disable(&sds_ring->napi);
235 }
236 }
237
238 static int nx_set_dma_mask(struct netxen_adapter *adapter)
239 {
240 struct pci_dev *pdev = adapter->pdev;
241 uint64_t mask, cmask;
242
243 adapter->pci_using_dac = 0;
244
245 mask = DMA_BIT_MASK(32);
246 cmask = DMA_BIT_MASK(32);
247
248 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
249 #ifndef CONFIG_IA64
250 mask = DMA_BIT_MASK(35);
251 #endif
252 } else {
253 mask = DMA_BIT_MASK(39);
254 cmask = mask;
255 }
256
257 if (pci_set_dma_mask(pdev, mask) == 0 &&
258 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
259 adapter->pci_using_dac = 1;
260 return 0;
261 }
262
263 return -EIO;
264 }
265
266 /* Update addressable range if firmware supports it */
267 static int
268 nx_update_dma_mask(struct netxen_adapter *adapter)
269 {
270 int change, shift, err;
271 uint64_t mask, old_mask, old_cmask;
272 struct pci_dev *pdev = adapter->pdev;
273
274 change = 0;
275
276 shift = NXRD32(adapter, CRB_DMA_SHIFT);
277 if (shift > 32)
278 return 0;
279
280 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
281 change = 1;
282 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
283 change = 1;
284
285 if (change) {
286 old_mask = pdev->dma_mask;
287 old_cmask = pdev->dev.coherent_dma_mask;
288
289 mask = DMA_BIT_MASK(32+shift);
290
291 err = pci_set_dma_mask(pdev, mask);
292 if (err)
293 goto err_out;
294
295 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
296
297 err = pci_set_consistent_dma_mask(pdev, mask);
298 if (err)
299 goto err_out;
300 }
301 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
302 }
303
304 return 0;
305
306 err_out:
307 pci_set_dma_mask(pdev, old_mask);
308 pci_set_consistent_dma_mask(pdev, old_cmask);
309 return err;
310 }
311
312 static void
313 netxen_check_options(struct netxen_adapter *adapter)
314 {
315 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
316 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
317 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
318 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
319 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
320 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
321 }
322
323 adapter->msix_supported = 0;
324 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
325 adapter->msix_supported = !!use_msi_x;
326 adapter->rss_supported = !!use_msi_x;
327 } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) {
328 switch (adapter->ahw.board_type) {
329 case NETXEN_BRDTYPE_P2_SB31_10G:
330 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
331 adapter->msix_supported = !!use_msi_x;
332 adapter->rss_supported = !!use_msi_x;
333 break;
334 default:
335 break;
336 }
337 }
338
339 adapter->num_txd = MAX_CMD_DESCRIPTORS;
340
341 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
342 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
343 adapter->max_rds_rings = 3;
344 } else {
345 adapter->num_lro_rxd = 0;
346 adapter->max_rds_rings = 2;
347 }
348 }
349
350 static int
351 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
352 {
353 u32 val, timeout;
354
355 if (first_boot == 0x55555555) {
356 /* This is the first boot after power up */
357 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
358
359 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
360 return 0;
361
362 /* PCI bus master workaround */
363 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
364 if (!(first_boot & 0x4)) {
365 first_boot |= 0x4;
366 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
367 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
368 }
369
370 /* This is the first boot after power up */
371 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
372 if (first_boot != 0x80000f) {
373 /* clear the register for future unloads/loads */
374 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
375 return -EIO;
376 }
377
378 /* Start P2 boot loader */
379 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
380 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
381 timeout = 0;
382 do {
383 msleep(1);
384 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
385
386 if (++timeout > 5000)
387 return -EIO;
388
389 } while (val == NETXEN_BDINFO_MAGIC);
390 }
391 return 0;
392 }
393
394 static void netxen_set_port_mode(struct netxen_adapter *adapter)
395 {
396 u32 val, data;
397
398 val = adapter->ahw.board_type;
399 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
400 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
401 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
402 data = NETXEN_PORT_MODE_802_3_AP;
403 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
404 } else if (port_mode == NETXEN_PORT_MODE_XG) {
405 data = NETXEN_PORT_MODE_XG;
406 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
407 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
408 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
409 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
410 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
411 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
412 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
413 } else {
414 data = NETXEN_PORT_MODE_AUTO_NEG;
415 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
416 }
417
418 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
419 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
420 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
421 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
422 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
423 }
424 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
425 }
426 }
427
428 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
429 {
430 u32 control;
431 int pos;
432
433 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
434 if (pos) {
435 pci_read_config_dword(pdev, pos, &control);
436 if (enable)
437 control |= PCI_MSIX_FLAGS_ENABLE;
438 else
439 control = 0;
440 pci_write_config_dword(pdev, pos, control);
441 }
442 }
443
444 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
445 {
446 int i;
447
448 for (i = 0; i < count; i++)
449 adapter->msix_entries[i].entry = i;
450 }
451
452 static int
453 netxen_read_mac_addr(struct netxen_adapter *adapter)
454 {
455 int i;
456 unsigned char *p;
457 __le64 mac_addr;
458 struct net_device *netdev = adapter->netdev;
459 struct pci_dev *pdev = adapter->pdev;
460
461 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
462 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
463 return -EIO;
464 } else {
465 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
466 return -EIO;
467 }
468
469 p = (unsigned char *)&mac_addr;
470 for (i = 0; i < 6; i++)
471 netdev->dev_addr[i] = *(p + 5 - i);
472
473 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
474
475 /* set station address */
476
477 if (!is_valid_ether_addr(netdev->perm_addr))
478 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
479
480 return 0;
481 }
482
483 int netxen_nic_set_mac(struct net_device *netdev, void *p)
484 {
485 struct netxen_adapter *adapter = netdev_priv(netdev);
486 struct sockaddr *addr = p;
487
488 if (!is_valid_ether_addr(addr->sa_data))
489 return -EINVAL;
490
491 if (netif_running(netdev)) {
492 netif_device_detach(netdev);
493 netxen_napi_disable(adapter);
494 }
495
496 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
497 adapter->macaddr_set(adapter, addr->sa_data);
498
499 if (netif_running(netdev)) {
500 netif_device_attach(netdev);
501 netxen_napi_enable(adapter);
502 }
503 return 0;
504 }
505
506 static void netxen_set_multicast_list(struct net_device *dev)
507 {
508 struct netxen_adapter *adapter = netdev_priv(dev);
509
510 adapter->set_multi(dev);
511 }
512
513 static const struct net_device_ops netxen_netdev_ops = {
514 .ndo_open = netxen_nic_open,
515 .ndo_stop = netxen_nic_close,
516 .ndo_start_xmit = netxen_nic_xmit_frame,
517 .ndo_get_stats = netxen_nic_get_stats,
518 .ndo_validate_addr = eth_validate_addr,
519 .ndo_set_multicast_list = netxen_set_multicast_list,
520 .ndo_set_mac_address = netxen_nic_set_mac,
521 .ndo_change_mtu = netxen_nic_change_mtu,
522 .ndo_tx_timeout = netxen_tx_timeout,
523 #ifdef CONFIG_NET_POLL_CONTROLLER
524 .ndo_poll_controller = netxen_nic_poll_controller,
525 #endif
526 };
527
528 static void
529 netxen_setup_intr(struct netxen_adapter *adapter)
530 {
531 struct netxen_legacy_intr_set *legacy_intrp;
532 struct pci_dev *pdev = adapter->pdev;
533 int err, num_msix;
534
535 if (adapter->rss_supported) {
536 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
537 MSIX_ENTRIES_PER_ADAPTER : 2;
538 } else
539 num_msix = 1;
540
541 adapter->max_sds_rings = 1;
542
543 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
544
545 if (adapter->ahw.revision_id >= NX_P3_B0)
546 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
547 else
548 legacy_intrp = &legacy_intr[0];
549 adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit;
550 adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg;
551 adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg;
552 adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg;
553
554 netxen_set_msix_bit(pdev, 0);
555
556 if (adapter->msix_supported) {
557
558 netxen_init_msix_entries(adapter, num_msix);
559 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
560 if (err == 0) {
561 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
562 netxen_set_msix_bit(pdev, 1);
563
564 if (adapter->rss_supported)
565 adapter->max_sds_rings = num_msix;
566
567 dev_info(&pdev->dev, "using msi-x interrupts\n");
568 return;
569 }
570
571 if (err > 0)
572 pci_disable_msix(pdev);
573
574 /* fall through for msi */
575 }
576
577 if (use_msi && !pci_enable_msi(pdev)) {
578 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
579 adapter->msi_tgt_status =
580 msi_tgt_status[adapter->ahw.pci_func];
581 dev_info(&pdev->dev, "using msi interrupts\n");
582 adapter->msix_entries[0].vector = pdev->irq;
583 return;
584 }
585
586 dev_info(&pdev->dev, "using legacy interrupts\n");
587 adapter->msix_entries[0].vector = pdev->irq;
588 }
589
590 static void
591 netxen_teardown_intr(struct netxen_adapter *adapter)
592 {
593 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
594 pci_disable_msix(adapter->pdev);
595 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
596 pci_disable_msi(adapter->pdev);
597 }
598
599 static void
600 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
601 {
602 if (adapter->ahw.db_base != NULL)
603 iounmap(adapter->ahw.db_base);
604 if (adapter->ahw.pci_base0 != NULL)
605 iounmap(adapter->ahw.pci_base0);
606 if (adapter->ahw.pci_base1 != NULL)
607 iounmap(adapter->ahw.pci_base1);
608 if (adapter->ahw.pci_base2 != NULL)
609 iounmap(adapter->ahw.pci_base2);
610 }
611
612 static int
613 netxen_setup_pci_map(struct netxen_adapter *adapter)
614 {
615 void __iomem *mem_ptr0 = NULL;
616 void __iomem *mem_ptr1 = NULL;
617 void __iomem *mem_ptr2 = NULL;
618 void __iomem *db_ptr = NULL;
619
620 unsigned long mem_base, mem_len, db_base, db_len = 0, pci_len0 = 0;
621
622 struct pci_dev *pdev = adapter->pdev;
623 int pci_func = adapter->ahw.pci_func;
624
625 int err = 0;
626
627 /*
628 * Set the CRB window to invalid. If any register in window 0 is
629 * accessed it should set the window to 0 and then reset it to 1.
630 */
631 adapter->curr_window = 255;
632 adapter->ahw.qdr_sn_window = -1;
633 adapter->ahw.ddr_mn_window = -1;
634
635 /* remap phys address */
636 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
637 mem_len = pci_resource_len(pdev, 0);
638 pci_len0 = 0;
639
640 adapter->hw_write_wx = netxen_nic_hw_write_wx_128M;
641 adapter->hw_read_wx = netxen_nic_hw_read_wx_128M;
642 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M;
643 adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M;
644 adapter->pci_set_window = netxen_nic_pci_set_window_128M;
645 adapter->pci_mem_read = netxen_nic_pci_mem_read_128M;
646 adapter->pci_mem_write = netxen_nic_pci_mem_write_128M;
647
648 /* 128 Meg of memory */
649 if (mem_len == NETXEN_PCI_128MB_SIZE) {
650 mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
651 mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
652 SECOND_PAGE_GROUP_SIZE);
653 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
654 THIRD_PAGE_GROUP_SIZE);
655 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
656 mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
657 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
658 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
659 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
660 adapter->hw_write_wx = netxen_nic_hw_write_wx_2M;
661 adapter->hw_read_wx = netxen_nic_hw_read_wx_2M;
662 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M;
663 adapter->pci_write_immediate =
664 netxen_nic_pci_write_immediate_2M;
665 adapter->pci_set_window = netxen_nic_pci_set_window_2M;
666 adapter->pci_mem_read = netxen_nic_pci_mem_read_2M;
667 adapter->pci_mem_write = netxen_nic_pci_mem_write_2M;
668
669 mem_ptr0 = pci_ioremap_bar(pdev, 0);
670 if (mem_ptr0 == NULL) {
671 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
672 return -EIO;
673 }
674 pci_len0 = mem_len;
675
676 adapter->ahw.ddr_mn_window = 0;
677 adapter->ahw.qdr_sn_window = 0;
678
679 adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW +
680 (pci_func * 0x20);
681 adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW;
682 if (pci_func < 4)
683 adapter->ahw.ms_win_crb += (pci_func * 0x20);
684 else
685 adapter->ahw.ms_win_crb +=
686 0xA0 + ((pci_func - 4) * 0x10);
687 } else {
688 return -EIO;
689 }
690
691 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
692
693 adapter->ahw.pci_base0 = mem_ptr0;
694 adapter->ahw.pci_len0 = pci_len0;
695 adapter->ahw.pci_base1 = mem_ptr1;
696 adapter->ahw.pci_base2 = mem_ptr2;
697
698 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
699 goto skip_doorbell;
700
701 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
702 db_len = pci_resource_len(pdev, 4);
703
704 if (db_len == 0) {
705 printk(KERN_ERR "%s: doorbell is disabled\n",
706 netxen_nic_driver_name);
707 err = -EIO;
708 goto err_out;
709 }
710
711 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
712 if (!db_ptr) {
713 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
714 netxen_nic_driver_name);
715 err = -EIO;
716 goto err_out;
717 }
718
719 skip_doorbell:
720 adapter->ahw.db_base = db_ptr;
721 adapter->ahw.db_len = db_len;
722 return 0;
723
724 err_out:
725 netxen_cleanup_pci_map(adapter);
726 return err;
727 }
728
729 static int
730 netxen_start_firmware(struct netxen_adapter *adapter, int request_fw)
731 {
732 int val, err, first_boot;
733 struct pci_dev *pdev = adapter->pdev;
734
735 int first_driver = 0;
736
737 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
738 first_driver = (adapter->portnum == 0);
739 else
740 first_driver = (adapter->ahw.pci_func == 0);
741
742 if (!first_driver)
743 goto wait_init;
744
745 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
746
747 err = netxen_check_hw_init(adapter, first_boot);
748 if (err) {
749 dev_err(&pdev->dev, "error in init HW init sequence\n");
750 return err;
751 }
752
753 if (request_fw)
754 netxen_request_firmware(adapter);
755
756 err = netxen_need_fw_reset(adapter);
757 if (err <= 0)
758 return err;
759
760 if (first_boot != 0x55555555) {
761 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
762 netxen_pinit_from_rom(adapter, 0);
763 msleep(1);
764 }
765
766 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
767 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
768 netxen_set_port_mode(adapter);
769
770 netxen_load_firmware(adapter);
771
772 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
773
774 /* Initialize multicast addr pool owners */
775 val = 0x7654;
776 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
777 val |= 0x0f000000;
778 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
779
780 }
781
782 err = netxen_init_dummy_dma(adapter);
783 if (err)
784 return err;
785
786 /*
787 * Tell the hardware our version number.
788 */
789 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
790 | ((_NETXEN_NIC_LINUX_MINOR << 8))
791 | (_NETXEN_NIC_LINUX_SUBVERSION);
792 NXWR32(adapter, CRB_DRIVER_VERSION, val);
793
794 wait_init:
795 /* Handshake with the card before we register the devices. */
796 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
797 if (err) {
798 netxen_free_dummy_dma(adapter);
799 return err;
800 }
801
802 nx_update_dma_mask(adapter);
803
804 netxen_nic_get_firmware_info(adapter);
805
806 return 0;
807 }
808
809 static int
810 netxen_nic_request_irq(struct netxen_adapter *adapter)
811 {
812 irq_handler_t handler;
813 struct nx_host_sds_ring *sds_ring;
814 int err, ring;
815
816 unsigned long flags = IRQF_SAMPLE_RANDOM;
817 struct net_device *netdev = adapter->netdev;
818 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
819
820 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
821 handler = netxen_msix_intr;
822 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
823 handler = netxen_msi_intr;
824 else {
825 flags |= IRQF_SHARED;
826 handler = netxen_intr;
827 }
828 adapter->irq = netdev->irq;
829
830 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
831 sds_ring = &recv_ctx->sds_rings[ring];
832 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
833 err = request_irq(sds_ring->irq, handler,
834 flags, sds_ring->name, sds_ring);
835 if (err)
836 return err;
837 }
838
839 return 0;
840 }
841
842 static void
843 netxen_nic_free_irq(struct netxen_adapter *adapter)
844 {
845 int ring;
846 struct nx_host_sds_ring *sds_ring;
847
848 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
849
850 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
851 sds_ring = &recv_ctx->sds_rings[ring];
852 free_irq(sds_ring->irq, sds_ring);
853 }
854 }
855
856 static void
857 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
858 {
859 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
860 adapter->coal.normal.data.rx_time_us =
861 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
862 adapter->coal.normal.data.rx_packets =
863 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
864 adapter->coal.normal.data.tx_time_us =
865 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
866 adapter->coal.normal.data.tx_packets =
867 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
868 }
869
870 static int
871 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
872 {
873 int err;
874
875 err = adapter->init_port(adapter, adapter->physical_port);
876 if (err) {
877 printk(KERN_ERR "%s: Failed to initialize port %d\n",
878 netxen_nic_driver_name, adapter->portnum);
879 return err;
880 }
881 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
882 adapter->macaddr_set(adapter, netdev->dev_addr);
883
884 adapter->set_multi(netdev);
885 adapter->set_mtu(adapter, netdev->mtu);
886
887 adapter->ahw.linkup = 0;
888
889 if (adapter->max_sds_rings > 1)
890 netxen_config_rss(adapter, 1);
891
892 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
893 netxen_config_intr_coalesce(adapter);
894
895 netxen_napi_enable(adapter);
896
897 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
898 netxen_linkevent_request(adapter, 1);
899 else
900 netxen_nic_set_link_parameters(adapter);
901
902 mod_timer(&adapter->watchdog_timer, jiffies);
903
904 return 0;
905 }
906
907 static void
908 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
909 {
910 spin_lock(&adapter->tx_clean_lock);
911 netif_carrier_off(netdev);
912 netif_tx_disable(netdev);
913
914 if (adapter->stop_port)
915 adapter->stop_port(adapter);
916
917 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
918 netxen_p3_free_mac_list(adapter);
919
920 netxen_napi_disable(adapter);
921
922 netxen_release_tx_buffers(adapter);
923 spin_unlock(&adapter->tx_clean_lock);
924
925 del_timer_sync(&adapter->watchdog_timer);
926 }
927
928
929 static int
930 netxen_nic_attach(struct netxen_adapter *adapter)
931 {
932 struct net_device *netdev = adapter->netdev;
933 struct pci_dev *pdev = adapter->pdev;
934 int err, ring;
935 struct nx_host_rds_ring *rds_ring;
936 struct nx_host_tx_ring *tx_ring;
937
938 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
939 return 0;
940
941 err = netxen_init_firmware(adapter);
942 if (err)
943 return err;
944
945 err = netxen_napi_add(adapter, netdev);
946 if (err)
947 return err;
948
949 err = netxen_alloc_sw_resources(adapter);
950 if (err) {
951 printk(KERN_ERR "%s: Error in setting sw resources\n",
952 netdev->name);
953 return err;
954 }
955
956 netxen_nic_clear_stats(adapter);
957
958 err = netxen_alloc_hw_resources(adapter);
959 if (err) {
960 printk(KERN_ERR "%s: Error in setting hw resources\n",
961 netdev->name);
962 goto err_out_free_sw;
963 }
964
965 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
966 tx_ring = adapter->tx_ring;
967 tx_ring->crb_cmd_producer = crb_cmd_producer[adapter->portnum];
968 tx_ring->crb_cmd_consumer = crb_cmd_consumer[adapter->portnum];
969
970 tx_ring->producer = 0;
971 tx_ring->sw_consumer = 0;
972
973 netxen_nic_update_cmd_producer(adapter, tx_ring);
974 netxen_nic_update_cmd_consumer(adapter, tx_ring);
975 }
976
977 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
978 rds_ring = &adapter->recv_ctx.rds_rings[ring];
979 netxen_post_rx_buffers(adapter, ring, rds_ring);
980 }
981
982 err = netxen_nic_request_irq(adapter);
983 if (err) {
984 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
985 netdev->name);
986 goto err_out_free_rxbuf;
987 }
988
989 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
990 netxen_nic_init_coalesce_defaults(adapter);
991
992 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
993 return 0;
994
995 err_out_free_rxbuf:
996 netxen_release_rx_buffers(adapter);
997 netxen_free_hw_resources(adapter);
998 err_out_free_sw:
999 netxen_free_sw_resources(adapter);
1000 return err;
1001 }
1002
1003 static void
1004 netxen_nic_detach(struct netxen_adapter *adapter)
1005 {
1006 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1007 return;
1008
1009 netxen_free_hw_resources(adapter);
1010 netxen_release_rx_buffers(adapter);
1011 netxen_nic_free_irq(adapter);
1012 netxen_napi_del(adapter);
1013 netxen_free_sw_resources(adapter);
1014
1015 adapter->is_up = 0;
1016 }
1017
1018 int
1019 netxen_nic_reset_context(struct netxen_adapter *adapter)
1020 {
1021 int err = 0;
1022 struct net_device *netdev = adapter->netdev;
1023
1024 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1025
1026 if (netif_running(netdev))
1027 netxen_nic_down(adapter, netdev);
1028
1029 netxen_nic_detach(adapter);
1030
1031 err = netxen_nic_attach(adapter);
1032 if (err)
1033 goto done;
1034
1035 if (netif_running(netdev))
1036 err = netxen_nic_up(adapter, netdev);
1037 }
1038 done:
1039 return err;
1040 }
1041
1042 static int
1043 netxen_setup_netdev(struct netxen_adapter *adapter,
1044 struct net_device *netdev)
1045 {
1046 int err = 0;
1047 struct pci_dev *pdev = adapter->pdev;
1048
1049 adapter->rx_csum = 1;
1050 adapter->mc_enabled = 0;
1051 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1052 adapter->max_mc_count = 38;
1053 else
1054 adapter->max_mc_count = 16;
1055
1056 netdev->netdev_ops = &netxen_netdev_ops;
1057 netdev->watchdog_timeo = 2*HZ;
1058
1059 netxen_nic_change_mtu(netdev, netdev->mtu);
1060
1061 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1062
1063 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1064 netdev->features |= (NETIF_F_GRO);
1065 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1066
1067 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1068 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1069 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1070 }
1071
1072 if (adapter->pci_using_dac) {
1073 netdev->features |= NETIF_F_HIGHDMA;
1074 netdev->vlan_features |= NETIF_F_HIGHDMA;
1075 }
1076
1077 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1078 netdev->features |= (NETIF_F_HW_VLAN_TX);
1079
1080 netdev->irq = adapter->msix_entries[0].vector;
1081
1082 err = netxen_napi_add(adapter, netdev);
1083 if (err)
1084 return err;
1085
1086 init_timer(&adapter->watchdog_timer);
1087 adapter->watchdog_timer.function = &netxen_watchdog;
1088 adapter->watchdog_timer.data = (unsigned long)adapter;
1089 INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task);
1090 INIT_WORK(&adapter->tx_timeout_task, netxen_reset_task);
1091
1092 if (netxen_read_mac_addr(adapter))
1093 dev_warn(&pdev->dev, "failed to read mac addr\n");
1094
1095 netif_carrier_off(netdev);
1096 netif_stop_queue(netdev);
1097
1098 err = register_netdev(netdev);
1099 if (err) {
1100 dev_err(&pdev->dev, "failed to register net device\n");
1101 return err;
1102 }
1103
1104 return 0;
1105 }
1106
1107 static int __devinit
1108 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1109 {
1110 struct net_device *netdev = NULL;
1111 struct netxen_adapter *adapter = NULL;
1112 int i = 0, err;
1113 int pci_func_id = PCI_FUNC(pdev->devfn);
1114 uint8_t revision_id;
1115
1116 if (pdev->class != 0x020000) {
1117 printk(KERN_DEBUG "NetXen function %d, class %x will not "
1118 "be enabled.\n",pci_func_id, pdev->class);
1119 return -ENODEV;
1120 }
1121
1122 if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) {
1123 printk(KERN_WARNING "NetXen chip revisions between 0x%x-0x%x"
1124 "will not be enabled.\n",
1125 NX_P3_A0, NX_P3_B1);
1126 return -ENODEV;
1127 }
1128
1129 if ((err = pci_enable_device(pdev)))
1130 return err;
1131
1132 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1133 err = -ENODEV;
1134 goto err_out_disable_pdev;
1135 }
1136
1137 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1138 goto err_out_disable_pdev;
1139
1140 pci_set_master(pdev);
1141
1142 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1143 if(!netdev) {
1144 dev_err(&pdev->dev, "failed to allocate net_device\n");
1145 err = -ENOMEM;
1146 goto err_out_free_res;
1147 }
1148
1149 SET_NETDEV_DEV(netdev, &pdev->dev);
1150
1151 adapter = netdev_priv(netdev);
1152 adapter->netdev = netdev;
1153 adapter->pdev = pdev;
1154 adapter->ahw.pci_func = pci_func_id;
1155
1156 revision_id = pdev->revision;
1157 adapter->ahw.revision_id = revision_id;
1158
1159 err = nx_set_dma_mask(adapter);
1160 if (err)
1161 goto err_out_free_netdev;
1162
1163 rwlock_init(&adapter->adapter_lock);
1164 spin_lock_init(&adapter->tx_clean_lock);
1165 INIT_LIST_HEAD(&adapter->mac_list);
1166
1167 err = netxen_setup_pci_map(adapter);
1168 if (err)
1169 goto err_out_free_netdev;
1170
1171 /* This will be reset for mezz cards */
1172 adapter->portnum = pci_func_id;
1173
1174 err = netxen_nic_get_board_info(adapter);
1175 if (err) {
1176 dev_err(&pdev->dev, "Error getting board config info.\n");
1177 goto err_out_iounmap;
1178 }
1179
1180 netxen_initialize_adapter_ops(adapter);
1181
1182 /* Mezz cards have PCI function 0,2,3 enabled */
1183 switch (adapter->ahw.board_type) {
1184 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1185 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1186 if (pci_func_id >= 2)
1187 adapter->portnum = pci_func_id - 2;
1188 break;
1189 default:
1190 break;
1191 }
1192
1193 err = netxen_start_firmware(adapter, 1);
1194 if (err)
1195 goto err_out_iounmap;
1196
1197 /*
1198 * See if the firmware gave us a virtual-physical port mapping.
1199 */
1200 adapter->physical_port = adapter->portnum;
1201 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1202 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1203 if (i != 0x55555555)
1204 adapter->physical_port = i;
1205 }
1206
1207 netxen_check_options(adapter);
1208
1209 netxen_setup_intr(adapter);
1210
1211 err = netxen_setup_netdev(adapter, netdev);
1212 if (err)
1213 goto err_out_disable_msi;
1214
1215 pci_set_drvdata(pdev, adapter);
1216
1217 switch (adapter->ahw.port_type) {
1218 case NETXEN_NIC_GBE:
1219 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1220 adapter->netdev->name);
1221 break;
1222 case NETXEN_NIC_XGBE:
1223 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1224 adapter->netdev->name);
1225 break;
1226 }
1227
1228 return 0;
1229
1230 err_out_disable_msi:
1231 netxen_teardown_intr(adapter);
1232
1233 netxen_free_dummy_dma(adapter);
1234
1235 err_out_iounmap:
1236 netxen_cleanup_pci_map(adapter);
1237
1238 err_out_free_netdev:
1239 free_netdev(netdev);
1240
1241 err_out_free_res:
1242 pci_release_regions(pdev);
1243
1244 err_out_disable_pdev:
1245 pci_set_drvdata(pdev, NULL);
1246 pci_disable_device(pdev);
1247 return err;
1248 }
1249
1250 static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1251 {
1252 struct netxen_adapter *adapter;
1253 struct net_device *netdev;
1254
1255 adapter = pci_get_drvdata(pdev);
1256 if (adapter == NULL)
1257 return;
1258
1259 netdev = adapter->netdev;
1260
1261 unregister_netdev(netdev);
1262
1263 cancel_work_sync(&adapter->watchdog_task);
1264 cancel_work_sync(&adapter->tx_timeout_task);
1265
1266 netxen_nic_detach(adapter);
1267
1268 if (adapter->portnum == 0)
1269 netxen_free_dummy_dma(adapter);
1270
1271 netxen_teardown_intr(adapter);
1272
1273 netxen_cleanup_pci_map(adapter);
1274
1275 netxen_release_firmware(adapter);
1276
1277 pci_release_regions(pdev);
1278 pci_disable_device(pdev);
1279 pci_set_drvdata(pdev, NULL);
1280
1281 free_netdev(netdev);
1282 }
1283
1284 #ifdef CONFIG_PM
1285 static int
1286 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1287 {
1288
1289 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1290 struct net_device *netdev = adapter->netdev;
1291
1292 netif_device_detach(netdev);
1293
1294 if (netif_running(netdev))
1295 netxen_nic_down(adapter, netdev);
1296
1297 cancel_work_sync(&adapter->watchdog_task);
1298 cancel_work_sync(&adapter->tx_timeout_task);
1299
1300 netxen_nic_detach(adapter);
1301
1302 pci_save_state(pdev);
1303
1304 if (netxen_nic_wol_supported(adapter)) {
1305 pci_enable_wake(pdev, PCI_D3cold, 1);
1306 pci_enable_wake(pdev, PCI_D3hot, 1);
1307 }
1308
1309 pci_disable_device(pdev);
1310 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1311
1312 return 0;
1313 }
1314
1315 static int
1316 netxen_nic_resume(struct pci_dev *pdev)
1317 {
1318 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1319 struct net_device *netdev = adapter->netdev;
1320 int err;
1321
1322 pci_set_power_state(pdev, PCI_D0);
1323 pci_restore_state(pdev);
1324
1325 err = pci_enable_device(pdev);
1326 if (err)
1327 return err;
1328
1329 adapter->curr_window = 255;
1330
1331 err = netxen_start_firmware(adapter, 0);
1332 if (err) {
1333 dev_err(&pdev->dev, "failed to start firmware\n");
1334 return err;
1335 }
1336
1337 if (netif_running(netdev)) {
1338 err = netxen_nic_attach(adapter);
1339 if (err)
1340 return err;
1341
1342 err = netxen_nic_up(adapter, netdev);
1343 if (err)
1344 return err;
1345
1346 netif_device_attach(netdev);
1347 }
1348
1349 return 0;
1350 }
1351 #endif
1352
1353 static int netxen_nic_open(struct net_device *netdev)
1354 {
1355 struct netxen_adapter *adapter = netdev_priv(netdev);
1356 int err = 0;
1357
1358 if (adapter->driver_mismatch)
1359 return -EIO;
1360
1361 err = netxen_nic_attach(adapter);
1362 if (err)
1363 return err;
1364
1365 err = netxen_nic_up(adapter, netdev);
1366 if (err)
1367 goto err_out;
1368
1369 netif_start_queue(netdev);
1370
1371 return 0;
1372
1373 err_out:
1374 netxen_nic_detach(adapter);
1375 return err;
1376 }
1377
1378 /*
1379 * netxen_nic_close - Disables a network interface entry point
1380 */
1381 static int netxen_nic_close(struct net_device *netdev)
1382 {
1383 struct netxen_adapter *adapter = netdev_priv(netdev);
1384
1385 netxen_nic_down(adapter, netdev);
1386 return 0;
1387 }
1388
1389 static void
1390 netxen_tso_check(struct net_device *netdev,
1391 struct nx_host_tx_ring *tx_ring,
1392 struct cmd_desc_type0 *first_desc,
1393 struct sk_buff *skb)
1394 {
1395 u8 opcode = TX_ETHER_PKT;
1396 __be16 protocol = skb->protocol;
1397 u16 flags = 0, vid = 0;
1398 u32 producer;
1399 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1400 struct cmd_desc_type0 *hwdesc;
1401 struct vlan_ethhdr *vh;
1402
1403 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1404
1405 vh = (struct vlan_ethhdr *)skb->data;
1406 protocol = vh->h_vlan_encapsulated_proto;
1407 flags = FLAGS_VLAN_TAGGED;
1408
1409 } else if (vlan_tx_tag_present(skb)) {
1410
1411 flags = FLAGS_VLAN_OOB;
1412 vid = vlan_tx_tag_get(skb);
1413 netxen_set_tx_vlan_tci(first_desc, vid);
1414 vlan_oob = 1;
1415 }
1416
1417 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1418 skb_shinfo(skb)->gso_size > 0) {
1419
1420 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1421
1422 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1423 first_desc->total_hdr_length = hdr_len;
1424 if (vlan_oob) {
1425 first_desc->total_hdr_length += VLAN_HLEN;
1426 first_desc->tcp_hdr_offset = VLAN_HLEN;
1427 first_desc->ip_hdr_offset = VLAN_HLEN;
1428 /* Only in case of TSO on vlan device */
1429 flags |= FLAGS_VLAN_TAGGED;
1430 }
1431
1432 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1433 TX_TCP_LSO6 : TX_TCP_LSO;
1434 tso = 1;
1435
1436 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1437 u8 l4proto;
1438
1439 if (protocol == cpu_to_be16(ETH_P_IP)) {
1440 l4proto = ip_hdr(skb)->protocol;
1441
1442 if (l4proto == IPPROTO_TCP)
1443 opcode = TX_TCP_PKT;
1444 else if(l4proto == IPPROTO_UDP)
1445 opcode = TX_UDP_PKT;
1446 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1447 l4proto = ipv6_hdr(skb)->nexthdr;
1448
1449 if (l4proto == IPPROTO_TCP)
1450 opcode = TX_TCPV6_PKT;
1451 else if(l4proto == IPPROTO_UDP)
1452 opcode = TX_UDPV6_PKT;
1453 }
1454 }
1455
1456 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1457 first_desc->ip_hdr_offset += skb_network_offset(skb);
1458 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1459
1460 if (!tso)
1461 return;
1462
1463 /* For LSO, we need to copy the MAC/IP/TCP headers into
1464 * the descriptor ring
1465 */
1466 producer = tx_ring->producer;
1467 copied = 0;
1468 offset = 2;
1469
1470 if (vlan_oob) {
1471 /* Create a TSO vlan header template for firmware */
1472
1473 hwdesc = &tx_ring->desc_head[producer];
1474 tx_ring->cmd_buf_arr[producer].skb = NULL;
1475
1476 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1477 hdr_len + VLAN_HLEN);
1478
1479 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1480 skb_copy_from_linear_data(skb, vh, 12);
1481 vh->h_vlan_proto = htons(ETH_P_8021Q);
1482 vh->h_vlan_TCI = htons(vid);
1483 skb_copy_from_linear_data_offset(skb, 12,
1484 (char *)vh + 16, copy_len - 16);
1485
1486 copied = copy_len - VLAN_HLEN;
1487 offset = 0;
1488
1489 producer = get_next_index(producer, tx_ring->num_desc);
1490 }
1491
1492 while (copied < hdr_len) {
1493
1494 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1495 (hdr_len - copied));
1496
1497 hwdesc = &tx_ring->desc_head[producer];
1498 tx_ring->cmd_buf_arr[producer].skb = NULL;
1499
1500 skb_copy_from_linear_data_offset(skb, copied,
1501 (char *)hwdesc + offset, copy_len);
1502
1503 copied += copy_len;
1504 offset = 0;
1505
1506 producer = get_next_index(producer, tx_ring->num_desc);
1507 }
1508
1509 tx_ring->producer = producer;
1510 barrier();
1511 }
1512
1513 static void
1514 netxen_clean_tx_dma_mapping(struct pci_dev *pdev,
1515 struct netxen_cmd_buffer *pbuf, int last)
1516 {
1517 int k;
1518 struct netxen_skb_frag *buffrag;
1519
1520 buffrag = &pbuf->frag_array[0];
1521 pci_unmap_single(pdev, buffrag->dma,
1522 buffrag->length, PCI_DMA_TODEVICE);
1523
1524 for (k = 1; k < last; k++) {
1525 buffrag = &pbuf->frag_array[k];
1526 pci_unmap_page(pdev, buffrag->dma,
1527 buffrag->length, PCI_DMA_TODEVICE);
1528 }
1529 }
1530
1531 static inline void
1532 netxen_clear_cmddesc(u64 *desc)
1533 {
1534 desc[0] = 0ULL;
1535 desc[2] = 0ULL;
1536 }
1537
1538 static int
1539 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1540 {
1541 struct netxen_adapter *adapter = netdev_priv(netdev);
1542 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1543 struct skb_frag_struct *frag;
1544 struct netxen_cmd_buffer *pbuf;
1545 struct netxen_skb_frag *buffrag;
1546 struct cmd_desc_type0 *hwdesc, *first_desc;
1547 struct pci_dev *pdev;
1548 dma_addr_t temp_dma;
1549 int i, k;
1550 unsigned long offset;
1551
1552 u32 producer;
1553 int len, frag_count, no_of_desc;
1554 u32 num_txd = tx_ring->num_desc;
1555
1556 frag_count = skb_shinfo(skb)->nr_frags + 1;
1557
1558 /* 4 fragments per cmd des */
1559 no_of_desc = (frag_count + 3) >> 2;
1560
1561 if (unlikely(no_of_desc + 2) > netxen_tx_avail(tx_ring)) {
1562 netif_stop_queue(netdev);
1563 return NETDEV_TX_BUSY;
1564 }
1565
1566 producer = tx_ring->producer;
1567
1568 pdev = adapter->pdev;
1569 len = skb->len - skb->data_len;
1570
1571 temp_dma = pci_map_single(pdev, skb->data, len, PCI_DMA_TODEVICE);
1572 if (pci_dma_mapping_error(pdev, temp_dma))
1573 goto drop_packet;
1574
1575 pbuf = &tx_ring->cmd_buf_arr[producer];
1576 pbuf->skb = skb;
1577 pbuf->frag_count = frag_count;
1578
1579 buffrag = &pbuf->frag_array[0];
1580 buffrag->dma = temp_dma;
1581 buffrag->length = len;
1582
1583 first_desc = hwdesc = &tx_ring->desc_head[producer];
1584 netxen_clear_cmddesc((u64 *)hwdesc);
1585 netxen_set_tx_frags_len(hwdesc, frag_count, skb->len);
1586 netxen_set_tx_port(hwdesc, adapter->portnum);
1587
1588 hwdesc->buffer_length[0] = cpu_to_le16(len);
1589 hwdesc->addr_buffer1 = cpu_to_le64(temp_dma);
1590
1591 for (i = 1, k = 1; i < frag_count; i++, k++) {
1592
1593 /* move to next desc. if there is a need */
1594 if ((i & 0x3) == 0) {
1595 k = 0;
1596 producer = get_next_index(producer, num_txd);
1597 hwdesc = &tx_ring->desc_head[producer];
1598 netxen_clear_cmddesc((u64 *)hwdesc);
1599 pbuf = &tx_ring->cmd_buf_arr[producer];
1600 pbuf->skb = NULL;
1601 }
1602 buffrag = &pbuf->frag_array[i];
1603 frag = &skb_shinfo(skb)->frags[i - 1];
1604 len = frag->size;
1605 offset = frag->page_offset;
1606
1607 temp_dma = pci_map_page(pdev, frag->page, offset,
1608 len, PCI_DMA_TODEVICE);
1609 if (pci_dma_mapping_error(pdev, temp_dma)) {
1610 netxen_clean_tx_dma_mapping(pdev, pbuf, i);
1611 goto drop_packet;
1612 }
1613
1614 buffrag->dma = temp_dma;
1615 buffrag->length = len;
1616
1617 hwdesc->buffer_length[k] = cpu_to_le16(len);
1618 switch (k) {
1619 case 0:
1620 hwdesc->addr_buffer1 = cpu_to_le64(temp_dma);
1621 break;
1622 case 1:
1623 hwdesc->addr_buffer2 = cpu_to_le64(temp_dma);
1624 break;
1625 case 2:
1626 hwdesc->addr_buffer3 = cpu_to_le64(temp_dma);
1627 break;
1628 case 3:
1629 hwdesc->addr_buffer4 = cpu_to_le64(temp_dma);
1630 break;
1631 }
1632 }
1633 tx_ring->producer = get_next_index(producer, num_txd);
1634
1635 netxen_tso_check(netdev, tx_ring, first_desc, skb);
1636
1637 netxen_nic_update_cmd_producer(adapter, tx_ring);
1638
1639 adapter->stats.txbytes += skb->len;
1640 adapter->stats.xmitcalled++;
1641
1642 return NETDEV_TX_OK;
1643
1644 drop_packet:
1645 adapter->stats.txdropped++;
1646 dev_kfree_skb_any(skb);
1647 return NETDEV_TX_OK;
1648 }
1649
1650 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1651 {
1652 struct net_device *netdev = adapter->netdev;
1653 uint32_t temp, temp_state, temp_val;
1654 int rv = 0;
1655
1656 temp = NXRD32(adapter, CRB_TEMP_STATE);
1657
1658 temp_state = nx_get_temp_state(temp);
1659 temp_val = nx_get_temp_val(temp);
1660
1661 if (temp_state == NX_TEMP_PANIC) {
1662 printk(KERN_ALERT
1663 "%s: Device temperature %d degrees C exceeds"
1664 " maximum allowed. Hardware has been shut down.\n",
1665 netdev->name, temp_val);
1666 rv = 1;
1667 } else if (temp_state == NX_TEMP_WARN) {
1668 if (adapter->temp == NX_TEMP_NORMAL) {
1669 printk(KERN_ALERT
1670 "%s: Device temperature %d degrees C "
1671 "exceeds operating range."
1672 " Immediate action needed.\n",
1673 netdev->name, temp_val);
1674 }
1675 } else {
1676 if (adapter->temp == NX_TEMP_WARN) {
1677 printk(KERN_INFO
1678 "%s: Device temperature is now %d degrees C"
1679 " in normal range.\n", netdev->name,
1680 temp_val);
1681 }
1682 }
1683 adapter->temp = temp_state;
1684 return rv;
1685 }
1686
1687 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
1688 {
1689 struct net_device *netdev = adapter->netdev;
1690
1691 if (adapter->ahw.linkup && !linkup) {
1692 printk(KERN_INFO "%s: %s NIC Link is down\n",
1693 netxen_nic_driver_name, netdev->name);
1694 adapter->ahw.linkup = 0;
1695 if (netif_running(netdev)) {
1696 netif_carrier_off(netdev);
1697 netif_stop_queue(netdev);
1698 }
1699 adapter->link_changed = !adapter->has_link_events;
1700 } else if (!adapter->ahw.linkup && linkup) {
1701 printk(KERN_INFO "%s: %s NIC Link is up\n",
1702 netxen_nic_driver_name, netdev->name);
1703 adapter->ahw.linkup = 1;
1704 if (netif_running(netdev)) {
1705 netif_carrier_on(netdev);
1706 netif_wake_queue(netdev);
1707 }
1708 adapter->link_changed = !adapter->has_link_events;
1709 }
1710 }
1711
1712 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1713 {
1714 u32 val, port, linkup;
1715
1716 port = adapter->physical_port;
1717
1718 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1719 val = NXRD32(adapter, CRB_XG_STATE_P3);
1720 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1721 linkup = (val == XG_LINK_UP_P3);
1722 } else {
1723 val = NXRD32(adapter, CRB_XG_STATE);
1724 if (adapter->ahw.port_type == NETXEN_NIC_GBE)
1725 linkup = (val >> port) & 1;
1726 else {
1727 val = (val >> port*8) & 0xff;
1728 linkup = (val == XG_LINK_UP);
1729 }
1730 }
1731
1732 netxen_advert_link_change(adapter, linkup);
1733 }
1734
1735 static void netxen_nic_thermal_shutdown(struct netxen_adapter *adapter)
1736 {
1737 struct net_device *netdev = adapter->netdev;
1738
1739 netif_device_detach(netdev);
1740 netxen_nic_down(adapter, netdev);
1741 netxen_nic_detach(adapter);
1742 }
1743
1744 static void netxen_watchdog(unsigned long v)
1745 {
1746 struct netxen_adapter *adapter = (struct netxen_adapter *)v;
1747
1748 if (netxen_nic_check_temp(adapter))
1749 goto do_sched;
1750
1751 if (!adapter->has_link_events) {
1752 netxen_nic_handle_phy_intr(adapter);
1753
1754 if (adapter->link_changed)
1755 goto do_sched;
1756 }
1757
1758 if (netif_running(adapter->netdev))
1759 mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
1760
1761 return;
1762
1763 do_sched:
1764 schedule_work(&adapter->watchdog_task);
1765 }
1766
1767 void netxen_watchdog_task(struct work_struct *work)
1768 {
1769 struct netxen_adapter *adapter =
1770 container_of(work, struct netxen_adapter, watchdog_task);
1771
1772 if (adapter->temp == NX_TEMP_PANIC) {
1773 netxen_nic_thermal_shutdown(adapter);
1774 return;
1775 }
1776
1777 if (adapter->link_changed)
1778 netxen_nic_set_link_parameters(adapter);
1779
1780 if (netif_running(adapter->netdev))
1781 mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
1782 }
1783
1784 static void netxen_tx_timeout(struct net_device *netdev)
1785 {
1786 struct netxen_adapter *adapter = netdev_priv(netdev);
1787
1788 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
1789 schedule_work(&adapter->tx_timeout_task);
1790 }
1791
1792 static void netxen_reset_task(struct work_struct *work)
1793 {
1794 struct netxen_adapter *adapter =
1795 container_of(work, struct netxen_adapter, tx_timeout_task);
1796
1797 if (!netif_running(adapter->netdev))
1798 return;
1799
1800 netxen_napi_disable(adapter);
1801
1802 adapter->netdev->trans_start = jiffies;
1803
1804 netxen_napi_enable(adapter);
1805 netif_wake_queue(adapter->netdev);
1806 }
1807
1808 struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
1809 {
1810 struct netxen_adapter *adapter = netdev_priv(netdev);
1811 struct net_device_stats *stats = &adapter->net_stats;
1812
1813 memset(stats, 0, sizeof(*stats));
1814
1815 stats->rx_packets = adapter->stats.no_rcv;
1816 stats->tx_packets = adapter->stats.xmitfinished;
1817 stats->rx_bytes = adapter->stats.rxbytes;
1818 stats->tx_bytes = adapter->stats.txbytes;
1819 stats->rx_dropped = adapter->stats.rxdropped;
1820 stats->tx_dropped = adapter->stats.txdropped;
1821
1822 return stats;
1823 }
1824
1825 static irqreturn_t netxen_intr(int irq, void *data)
1826 {
1827 struct nx_host_sds_ring *sds_ring = data;
1828 struct netxen_adapter *adapter = sds_ring->adapter;
1829 u32 status = 0;
1830
1831 status = adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1832
1833 if (!(status & adapter->legacy_intr.int_vec_bit))
1834 return IRQ_NONE;
1835
1836 if (adapter->ahw.revision_id >= NX_P3_B1) {
1837 /* check interrupt state machine, to be sure */
1838 status = adapter->pci_read_immediate(adapter,
1839 ISR_INT_STATE_REG);
1840 if (!ISR_LEGACY_INT_TRIGGERED(status))
1841 return IRQ_NONE;
1842
1843 } else {
1844 unsigned long our_int = 0;
1845
1846 our_int = NXRD32(adapter, CRB_INT_VECTOR);
1847
1848 /* not our interrupt */
1849 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
1850 return IRQ_NONE;
1851
1852 /* claim interrupt */
1853 NXWR32(adapter, CRB_INT_VECTOR, (our_int & 0xffffffff));
1854 }
1855
1856 /* clear interrupt */
1857 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1858 netxen_nic_disable_int(sds_ring);
1859
1860 adapter->pci_write_immediate(adapter,
1861 adapter->legacy_intr.tgt_status_reg,
1862 0xffffffff);
1863 /* read twice to ensure write is flushed */
1864 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1865 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1866
1867 napi_schedule(&sds_ring->napi);
1868
1869 return IRQ_HANDLED;
1870 }
1871
1872 static irqreturn_t netxen_msi_intr(int irq, void *data)
1873 {
1874 struct nx_host_sds_ring *sds_ring = data;
1875 struct netxen_adapter *adapter = sds_ring->adapter;
1876
1877 /* clear interrupt */
1878 adapter->pci_write_immediate(adapter,
1879 adapter->msi_tgt_status, 0xffffffff);
1880
1881 napi_schedule(&sds_ring->napi);
1882 return IRQ_HANDLED;
1883 }
1884
1885 static irqreturn_t netxen_msix_intr(int irq, void *data)
1886 {
1887 struct nx_host_sds_ring *sds_ring = data;
1888
1889 napi_schedule(&sds_ring->napi);
1890 return IRQ_HANDLED;
1891 }
1892
1893 static int netxen_nic_poll(struct napi_struct *napi, int budget)
1894 {
1895 struct nx_host_sds_ring *sds_ring =
1896 container_of(napi, struct nx_host_sds_ring, napi);
1897
1898 struct netxen_adapter *adapter = sds_ring->adapter;
1899
1900 int tx_complete;
1901 int work_done;
1902
1903 tx_complete = netxen_process_cmd_ring(adapter);
1904
1905 work_done = netxen_process_rcv_ring(sds_ring, budget);
1906
1907 if ((work_done < budget) && tx_complete) {
1908 napi_complete(&sds_ring->napi);
1909 if (netif_running(adapter->netdev))
1910 netxen_nic_enable_int(sds_ring);
1911 }
1912
1913 return work_done;
1914 }
1915
1916 #ifdef CONFIG_NET_POLL_CONTROLLER
1917 static void netxen_nic_poll_controller(struct net_device *netdev)
1918 {
1919 struct netxen_adapter *adapter = netdev_priv(netdev);
1920 disable_irq(adapter->irq);
1921 netxen_intr(adapter->irq, adapter);
1922 enable_irq(adapter->irq);
1923 }
1924 #endif
1925
1926 #ifdef CONFIG_INET
1927
1928 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
1929
1930 static int
1931 netxen_destip_supported(struct netxen_adapter *adapter)
1932 {
1933 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1934 return 0;
1935
1936 if (adapter->ahw.cut_through)
1937 return 0;
1938
1939 return 1;
1940 }
1941
1942 static int netxen_netdev_event(struct notifier_block *this,
1943 unsigned long event, void *ptr)
1944 {
1945 struct netxen_adapter *adapter;
1946 struct net_device *dev = (struct net_device *)ptr;
1947 struct in_device *indev;
1948
1949 recheck:
1950 if (dev == NULL)
1951 goto done;
1952
1953 if (dev->priv_flags & IFF_802_1Q_VLAN) {
1954 dev = vlan_dev_real_dev(dev);
1955 goto recheck;
1956 }
1957
1958 if (!is_netxen_netdev(dev))
1959 goto done;
1960
1961 adapter = netdev_priv(dev);
1962
1963 if (!adapter || !netxen_destip_supported(adapter))
1964 goto done;
1965
1966 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1967 goto done;
1968
1969 indev = in_dev_get(dev);
1970 if (!indev)
1971 goto done;
1972
1973 for_ifa(indev) {
1974 switch (event) {
1975 case NETDEV_UP:
1976 netxen_config_ipaddr(adapter,
1977 ifa->ifa_address, NX_IP_UP);
1978 break;
1979 case NETDEV_DOWN:
1980 netxen_config_ipaddr(adapter,
1981 ifa->ifa_address, NX_IP_DOWN);
1982 break;
1983 default:
1984 break;
1985 }
1986 } endfor_ifa(indev);
1987
1988 in_dev_put(indev);
1989 done:
1990 return NOTIFY_DONE;
1991 }
1992
1993 static int
1994 netxen_inetaddr_event(struct notifier_block *this,
1995 unsigned long event, void *ptr)
1996 {
1997 struct netxen_adapter *adapter;
1998 struct net_device *dev;
1999
2000 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2001
2002 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2003
2004 recheck:
2005 if (dev == NULL || !netif_running(dev))
2006 goto done;
2007
2008 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2009 dev = vlan_dev_real_dev(dev);
2010 goto recheck;
2011 }
2012
2013 if (!is_netxen_netdev(dev))
2014 goto done;
2015
2016 adapter = netdev_priv(dev);
2017
2018 if (!adapter || !netxen_destip_supported(adapter))
2019 goto done;
2020
2021 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2022 goto done;
2023
2024 switch (event) {
2025 case NETDEV_UP:
2026 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2027 break;
2028 case NETDEV_DOWN:
2029 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2030 break;
2031 default:
2032 break;
2033 }
2034
2035 done:
2036 return NOTIFY_DONE;
2037 }
2038
2039 static struct notifier_block netxen_netdev_cb = {
2040 .notifier_call = netxen_netdev_event,
2041 };
2042
2043 static struct notifier_block netxen_inetaddr_cb = {
2044 .notifier_call = netxen_inetaddr_event,
2045 };
2046 #endif
2047
2048 static struct pci_driver netxen_driver = {
2049 .name = netxen_nic_driver_name,
2050 .id_table = netxen_pci_tbl,
2051 .probe = netxen_nic_probe,
2052 .remove = __devexit_p(netxen_nic_remove),
2053 #ifdef CONFIG_PM
2054 .suspend = netxen_nic_suspend,
2055 .resume = netxen_nic_resume
2056 #endif
2057 };
2058
2059 static int __init netxen_init_module(void)
2060 {
2061 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2062
2063 #ifdef CONFIG_INET
2064 register_netdevice_notifier(&netxen_netdev_cb);
2065 register_inetaddr_notifier(&netxen_inetaddr_cb);
2066 #endif
2067
2068 return pci_register_driver(&netxen_driver);
2069 }
2070
2071 module_init(netxen_init_module);
2072
2073 static void __exit netxen_exit_module(void)
2074 {
2075 pci_unregister_driver(&netxen_driver);
2076
2077 #ifdef CONFIG_INET
2078 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2079 unregister_netdevice_notifier(&netxen_netdev_cb);
2080 #endif
2081 }
2082
2083 module_exit(netxen_exit_module);
Linux kernel - Deliverables
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