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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit...
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / net / netxen / netxen_nic_main.c
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 "COPYING".
23 *
24 */
25
26 #include <linux/slab.h>
27 #include <linux/vmalloc.h>
28 #include <linux/interrupt.h>
29 #include "netxen_nic_hw.h"
30
31 #include "netxen_nic.h"
32
33 #include <linux/dma-mapping.h>
34 #include <linux/if_vlan.h>
35 #include <net/ip.h>
36 #include <linux/ipv6.h>
37 #include <linux/inetdevice.h>
38 #include <linux/sysfs.h>
39 #include <linux/aer.h>
40
41 MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Converged Ethernet Driver");
42 MODULE_LICENSE("GPL");
43 MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
44 MODULE_FIRMWARE(NX_P2_MN_ROMIMAGE_NAME);
45 MODULE_FIRMWARE(NX_P3_CT_ROMIMAGE_NAME);
46 MODULE_FIRMWARE(NX_P3_MN_ROMIMAGE_NAME);
47 MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
48
49 char netxen_nic_driver_name[] = "netxen_nic";
50 static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
51 NETXEN_NIC_LINUX_VERSIONID;
52
53 static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
54
55 /* Default to restricted 1G auto-neg mode */
56 static int wol_port_mode = 5;
57
58 static int use_msi = 1;
59
60 static int use_msi_x = 1;
61
62 static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
63 module_param(auto_fw_reset, int, 0644);
64 MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
65
66 static int __devinit netxen_nic_probe(struct pci_dev *pdev,
67 const struct pci_device_id *ent);
68 static void __devexit netxen_nic_remove(struct pci_dev *pdev);
69 static int netxen_nic_open(struct net_device *netdev);
70 static int netxen_nic_close(struct net_device *netdev);
71 static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
72 struct net_device *);
73 static void netxen_tx_timeout(struct net_device *netdev);
74 static void netxen_tx_timeout_task(struct work_struct *work);
75 static void netxen_fw_poll_work(struct work_struct *work);
76 static void netxen_schedule_work(struct netxen_adapter *adapter,
77 work_func_t func, int delay);
78 static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
79 static int netxen_nic_poll(struct napi_struct *napi, int budget);
80 #ifdef CONFIG_NET_POLL_CONTROLLER
81 static void netxen_nic_poll_controller(struct net_device *netdev);
82 #endif
83
84 static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
85 static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
86 static void netxen_create_diag_entries(struct netxen_adapter *adapter);
87 static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
88
89 static int nx_dev_request_aer(struct netxen_adapter *adapter);
90 static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
91 static int netxen_can_start_firmware(struct netxen_adapter *adapter);
92
93 static irqreturn_t netxen_intr(int irq, void *data);
94 static irqreturn_t netxen_msi_intr(int irq, void *data);
95 static irqreturn_t netxen_msix_intr(int irq, void *data);
96
97 static void netxen_config_indev_addr(struct net_device *dev, unsigned long);
98
99 /* PCI Device ID Table */
100 #define ENTRY(device) \
101 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
102 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
103
104 static DEFINE_PCI_DEVICE_TABLE(netxen_pci_tbl) = {
105 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
106 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
107 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
108 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
109 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
110 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
111 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
112 ENTRY(PCI_DEVICE_ID_NX3031),
113 {0,}
114 };
115
116 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
117
118 static uint32_t crb_cmd_producer[4] = {
119 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
120 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
121 };
122
123 void
124 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
125 struct nx_host_tx_ring *tx_ring)
126 {
127 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
128
129 if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) {
130 netif_stop_queue(adapter->netdev);
131 smp_mb();
132 }
133 }
134
135 static uint32_t crb_cmd_consumer[4] = {
136 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
137 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
138 };
139
140 static inline void
141 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
142 struct nx_host_tx_ring *tx_ring)
143 {
144 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
145 }
146
147 static uint32_t msi_tgt_status[8] = {
148 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
149 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
150 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
151 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
152 };
153
154 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
155
156 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
157 {
158 struct netxen_adapter *adapter = sds_ring->adapter;
159
160 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
161 }
162
163 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
164 {
165 struct netxen_adapter *adapter = sds_ring->adapter;
166
167 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
168
169 if (!NETXEN_IS_MSI_FAMILY(adapter))
170 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
171 }
172
173 static int
174 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
175 {
176 int size = sizeof(struct nx_host_sds_ring) * count;
177
178 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
179
180 return (recv_ctx->sds_rings == NULL);
181 }
182
183 static void
184 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
185 {
186 if (recv_ctx->sds_rings != NULL)
187 kfree(recv_ctx->sds_rings);
188
189 recv_ctx->sds_rings = NULL;
190 }
191
192 static int
193 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
194 {
195 int ring;
196 struct nx_host_sds_ring *sds_ring;
197 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
198
199 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
200 return -ENOMEM;
201
202 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
203 sds_ring = &recv_ctx->sds_rings[ring];
204 netif_napi_add(netdev, &sds_ring->napi,
205 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
206 }
207
208 return 0;
209 }
210
211 static void
212 netxen_napi_del(struct netxen_adapter *adapter)
213 {
214 int ring;
215 struct nx_host_sds_ring *sds_ring;
216 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
217
218 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
219 sds_ring = &recv_ctx->sds_rings[ring];
220 netif_napi_del(&sds_ring->napi);
221 }
222
223 netxen_free_sds_rings(&adapter->recv_ctx);
224 }
225
226 static void
227 netxen_napi_enable(struct netxen_adapter *adapter)
228 {
229 int ring;
230 struct nx_host_sds_ring *sds_ring;
231 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
232
233 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
234 sds_ring = &recv_ctx->sds_rings[ring];
235 napi_enable(&sds_ring->napi);
236 netxen_nic_enable_int(sds_ring);
237 }
238 }
239
240 static void
241 netxen_napi_disable(struct netxen_adapter *adapter)
242 {
243 int ring;
244 struct nx_host_sds_ring *sds_ring;
245 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
246
247 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
248 sds_ring = &recv_ctx->sds_rings[ring];
249 netxen_nic_disable_int(sds_ring);
250 napi_synchronize(&sds_ring->napi);
251 napi_disable(&sds_ring->napi);
252 }
253 }
254
255 static int nx_set_dma_mask(struct netxen_adapter *adapter)
256 {
257 struct pci_dev *pdev = adapter->pdev;
258 uint64_t mask, cmask;
259
260 adapter->pci_using_dac = 0;
261
262 mask = DMA_BIT_MASK(32);
263 cmask = DMA_BIT_MASK(32);
264
265 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
266 #ifndef CONFIG_IA64
267 mask = DMA_BIT_MASK(35);
268 #endif
269 } else {
270 mask = DMA_BIT_MASK(39);
271 cmask = mask;
272 }
273
274 if (pci_set_dma_mask(pdev, mask) == 0 &&
275 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
276 adapter->pci_using_dac = 1;
277 return 0;
278 }
279
280 return -EIO;
281 }
282
283 /* Update addressable range if firmware supports it */
284 static int
285 nx_update_dma_mask(struct netxen_adapter *adapter)
286 {
287 int change, shift, err;
288 uint64_t mask, old_mask, old_cmask;
289 struct pci_dev *pdev = adapter->pdev;
290
291 change = 0;
292
293 shift = NXRD32(adapter, CRB_DMA_SHIFT);
294 if (shift > 32)
295 return 0;
296
297 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
298 change = 1;
299 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
300 change = 1;
301
302 if (change) {
303 old_mask = pdev->dma_mask;
304 old_cmask = pdev->dev.coherent_dma_mask;
305
306 mask = DMA_BIT_MASK(32+shift);
307
308 err = pci_set_dma_mask(pdev, mask);
309 if (err)
310 goto err_out;
311
312 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
313
314 err = pci_set_consistent_dma_mask(pdev, mask);
315 if (err)
316 goto err_out;
317 }
318 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
319 }
320
321 return 0;
322
323 err_out:
324 pci_set_dma_mask(pdev, old_mask);
325 pci_set_consistent_dma_mask(pdev, old_cmask);
326 return err;
327 }
328
329 static int
330 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
331 {
332 u32 val, timeout;
333
334 if (first_boot == 0x55555555) {
335 /* This is the first boot after power up */
336 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
337
338 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
339 return 0;
340
341 /* PCI bus master workaround */
342 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
343 if (!(first_boot & 0x4)) {
344 first_boot |= 0x4;
345 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
346 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
347 }
348
349 /* This is the first boot after power up */
350 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
351 if (first_boot != 0x80000f) {
352 /* clear the register for future unloads/loads */
353 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
354 return -EIO;
355 }
356
357 /* Start P2 boot loader */
358 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
359 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
360 timeout = 0;
361 do {
362 msleep(1);
363 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
364
365 if (++timeout > 5000)
366 return -EIO;
367
368 } while (val == NETXEN_BDINFO_MAGIC);
369 }
370 return 0;
371 }
372
373 static void netxen_set_port_mode(struct netxen_adapter *adapter)
374 {
375 u32 val, data;
376
377 val = adapter->ahw.board_type;
378 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
379 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
380 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
381 data = NETXEN_PORT_MODE_802_3_AP;
382 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
383 } else if (port_mode == NETXEN_PORT_MODE_XG) {
384 data = NETXEN_PORT_MODE_XG;
385 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
386 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
387 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
388 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
389 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
390 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
391 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
392 } else {
393 data = NETXEN_PORT_MODE_AUTO_NEG;
394 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
395 }
396
397 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
398 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
399 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
400 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
401 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
402 }
403 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
404 }
405 }
406
407 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
408 {
409 u32 control;
410 int pos;
411
412 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
413 if (pos) {
414 pci_read_config_dword(pdev, pos, &control);
415 if (enable)
416 control |= PCI_MSIX_FLAGS_ENABLE;
417 else
418 control = 0;
419 pci_write_config_dword(pdev, pos, control);
420 }
421 }
422
423 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
424 {
425 int i;
426
427 for (i = 0; i < count; i++)
428 adapter->msix_entries[i].entry = i;
429 }
430
431 static int
432 netxen_read_mac_addr(struct netxen_adapter *adapter)
433 {
434 int i;
435 unsigned char *p;
436 u64 mac_addr;
437 struct net_device *netdev = adapter->netdev;
438 struct pci_dev *pdev = adapter->pdev;
439
440 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
441 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
442 return -EIO;
443 } else {
444 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
445 return -EIO;
446 }
447
448 p = (unsigned char *)&mac_addr;
449 for (i = 0; i < 6; i++)
450 netdev->dev_addr[i] = *(p + 5 - i);
451
452 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
453 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
454
455 /* set station address */
456
457 if (!is_valid_ether_addr(netdev->perm_addr))
458 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
459
460 return 0;
461 }
462
463 int netxen_nic_set_mac(struct net_device *netdev, void *p)
464 {
465 struct netxen_adapter *adapter = netdev_priv(netdev);
466 struct sockaddr *addr = p;
467
468 if (!is_valid_ether_addr(addr->sa_data))
469 return -EINVAL;
470
471 if (netif_running(netdev)) {
472 netif_device_detach(netdev);
473 netxen_napi_disable(adapter);
474 }
475
476 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
477 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
478 adapter->macaddr_set(adapter, addr->sa_data);
479
480 if (netif_running(netdev)) {
481 netif_device_attach(netdev);
482 netxen_napi_enable(adapter);
483 }
484 return 0;
485 }
486
487 static void netxen_set_multicast_list(struct net_device *dev)
488 {
489 struct netxen_adapter *adapter = netdev_priv(dev);
490
491 adapter->set_multi(dev);
492 }
493
494 static const struct net_device_ops netxen_netdev_ops = {
495 .ndo_open = netxen_nic_open,
496 .ndo_stop = netxen_nic_close,
497 .ndo_start_xmit = netxen_nic_xmit_frame,
498 .ndo_get_stats = netxen_nic_get_stats,
499 .ndo_validate_addr = eth_validate_addr,
500 .ndo_set_multicast_list = netxen_set_multicast_list,
501 .ndo_set_mac_address = netxen_nic_set_mac,
502 .ndo_change_mtu = netxen_nic_change_mtu,
503 .ndo_tx_timeout = netxen_tx_timeout,
504 #ifdef CONFIG_NET_POLL_CONTROLLER
505 .ndo_poll_controller = netxen_nic_poll_controller,
506 #endif
507 };
508
509 static void
510 netxen_setup_intr(struct netxen_adapter *adapter)
511 {
512 struct netxen_legacy_intr_set *legacy_intrp;
513 struct pci_dev *pdev = adapter->pdev;
514 int err, num_msix;
515
516 if (adapter->rss_supported) {
517 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
518 MSIX_ENTRIES_PER_ADAPTER : 2;
519 } else
520 num_msix = 1;
521
522 adapter->max_sds_rings = 1;
523
524 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
525
526 if (adapter->ahw.revision_id >= NX_P3_B0)
527 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
528 else
529 legacy_intrp = &legacy_intr[0];
530
531 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
532 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
533 legacy_intrp->tgt_status_reg);
534 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
535 legacy_intrp->tgt_mask_reg);
536 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
537 legacy_intrp->pci_int_reg);
538 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
539
540 if (adapter->ahw.revision_id >= NX_P3_B1)
541 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
542 ISR_INT_STATE_REG);
543 else
544 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
545 CRB_INT_VECTOR);
546
547 netxen_set_msix_bit(pdev, 0);
548
549 if (adapter->msix_supported) {
550
551 netxen_init_msix_entries(adapter, num_msix);
552 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
553 if (err == 0) {
554 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
555 netxen_set_msix_bit(pdev, 1);
556
557 if (adapter->rss_supported)
558 adapter->max_sds_rings = num_msix;
559
560 dev_info(&pdev->dev, "using msi-x interrupts\n");
561 return;
562 }
563
564 if (err > 0)
565 pci_disable_msix(pdev);
566
567 /* fall through for msi */
568 }
569
570 if (use_msi && !pci_enable_msi(pdev)) {
571 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
572 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
573 msi_tgt_status[adapter->ahw.pci_func]);
574 dev_info(&pdev->dev, "using msi interrupts\n");
575 adapter->msix_entries[0].vector = pdev->irq;
576 return;
577 }
578
579 dev_info(&pdev->dev, "using legacy interrupts\n");
580 adapter->msix_entries[0].vector = pdev->irq;
581 }
582
583 static void
584 netxen_teardown_intr(struct netxen_adapter *adapter)
585 {
586 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
587 pci_disable_msix(adapter->pdev);
588 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
589 pci_disable_msi(adapter->pdev);
590 }
591
592 static void
593 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
594 {
595 if (adapter->ahw.db_base != NULL)
596 iounmap(adapter->ahw.db_base);
597 if (adapter->ahw.pci_base0 != NULL)
598 iounmap(adapter->ahw.pci_base0);
599 if (adapter->ahw.pci_base1 != NULL)
600 iounmap(adapter->ahw.pci_base1);
601 if (adapter->ahw.pci_base2 != NULL)
602 iounmap(adapter->ahw.pci_base2);
603 }
604
605 static int
606 netxen_setup_pci_map(struct netxen_adapter *adapter)
607 {
608 void __iomem *db_ptr = NULL;
609
610 resource_size_t mem_base, db_base;
611 unsigned long mem_len, db_len = 0;
612
613 struct pci_dev *pdev = adapter->pdev;
614 int pci_func = adapter->ahw.pci_func;
615 struct netxen_hardware_context *ahw = &adapter->ahw;
616
617 int err = 0;
618
619 /*
620 * Set the CRB window to invalid. If any register in window 0 is
621 * accessed it should set the window to 0 and then reset it to 1.
622 */
623 adapter->ahw.crb_win = -1;
624 adapter->ahw.ocm_win = -1;
625
626 /* remap phys address */
627 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
628 mem_len = pci_resource_len(pdev, 0);
629
630 /* 128 Meg of memory */
631 if (mem_len == NETXEN_PCI_128MB_SIZE) {
632
633 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
634 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
635 SECOND_PAGE_GROUP_SIZE);
636 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
637 THIRD_PAGE_GROUP_SIZE);
638 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
639 ahw->pci_base2 == NULL) {
640 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
641 err = -EIO;
642 goto err_out;
643 }
644
645 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
646
647 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
648
649 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
650 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
651 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
652 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
653 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
654 err = -EIO;
655 goto err_out;
656 }
657
658 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
659
660 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
661 if (ahw->pci_base0 == NULL) {
662 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
663 return -EIO;
664 }
665 ahw->pci_len0 = mem_len;
666 } else {
667 return -EIO;
668 }
669
670 netxen_setup_hwops(adapter);
671
672 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
673
674 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
675 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
676 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
677
678 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
679 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
680 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
681 }
682
683 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
684 goto skip_doorbell;
685
686 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
687 db_len = pci_resource_len(pdev, 4);
688
689 if (db_len == 0) {
690 printk(KERN_ERR "%s: doorbell is disabled\n",
691 netxen_nic_driver_name);
692 err = -EIO;
693 goto err_out;
694 }
695
696 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
697 if (!db_ptr) {
698 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
699 netxen_nic_driver_name);
700 err = -EIO;
701 goto err_out;
702 }
703
704 skip_doorbell:
705 adapter->ahw.db_base = db_ptr;
706 adapter->ahw.db_len = db_len;
707 return 0;
708
709 err_out:
710 netxen_cleanup_pci_map(adapter);
711 return err;
712 }
713
714 static void
715 netxen_check_options(struct netxen_adapter *adapter)
716 {
717 u32 fw_major, fw_minor, fw_build;
718 char brd_name[NETXEN_MAX_SHORT_NAME];
719 char serial_num[32];
720 int i, offset, val;
721 int *ptr32;
722 struct pci_dev *pdev = adapter->pdev;
723
724 adapter->driver_mismatch = 0;
725
726 ptr32 = (int *)&serial_num;
727 offset = NX_FW_SERIAL_NUM_OFFSET;
728 for (i = 0; i < 8; i++) {
729 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
730 dev_err(&pdev->dev, "error reading board info\n");
731 adapter->driver_mismatch = 1;
732 return;
733 }
734 ptr32[i] = cpu_to_le32(val);
735 offset += sizeof(u32);
736 }
737
738 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
739 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
740 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
741
742 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
743
744 if (adapter->portnum == 0) {
745 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
746
747 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
748 module_name(THIS_MODULE),
749 brd_name, serial_num, adapter->ahw.revision_id);
750 }
751
752 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
753 adapter->driver_mismatch = 1;
754 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
755 fw_major, fw_minor, fw_build);
756 return;
757 }
758
759 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
760 i = NXRD32(adapter, NETXEN_SRE_MISC);
761 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
762 }
763
764 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
765 fw_major, fw_minor, fw_build,
766 adapter->ahw.cut_through ? "cut-through" : "legacy");
767
768 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
769 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
770
771 adapter->flags &= ~NETXEN_NIC_LRO_ENABLED;
772
773 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
774 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
775 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
776 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
777 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
778 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
779 }
780
781 adapter->msix_supported = 0;
782 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
783 adapter->msix_supported = !!use_msi_x;
784 adapter->rss_supported = !!use_msi_x;
785 } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) {
786 switch (adapter->ahw.board_type) {
787 case NETXEN_BRDTYPE_P2_SB31_10G:
788 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
789 adapter->msix_supported = !!use_msi_x;
790 adapter->rss_supported = !!use_msi_x;
791 break;
792 default:
793 break;
794 }
795 }
796
797 adapter->num_txd = MAX_CMD_DESCRIPTORS;
798
799 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
800 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
801 adapter->max_rds_rings = 3;
802 } else {
803 adapter->num_lro_rxd = 0;
804 adapter->max_rds_rings = 2;
805 }
806 }
807
808 static int
809 netxen_start_firmware(struct netxen_adapter *adapter)
810 {
811 int val, err, first_boot;
812 struct pci_dev *pdev = adapter->pdev;
813
814 /* required for NX2031 dummy dma */
815 err = nx_set_dma_mask(adapter);
816 if (err)
817 return err;
818
819 if (!netxen_can_start_firmware(adapter))
820 goto wait_init;
821
822 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
823
824 err = netxen_check_hw_init(adapter, first_boot);
825 if (err) {
826 dev_err(&pdev->dev, "error in init HW init sequence\n");
827 return err;
828 }
829
830 netxen_request_firmware(adapter);
831
832 err = netxen_need_fw_reset(adapter);
833 if (err < 0)
834 goto err_out;
835 if (err == 0)
836 goto wait_init;
837
838 if (first_boot != 0x55555555) {
839 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
840 netxen_pinit_from_rom(adapter);
841 msleep(1);
842 }
843
844 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
845 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
846 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
847
848 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
849 netxen_set_port_mode(adapter);
850
851 err = netxen_load_firmware(adapter);
852 if (err)
853 goto err_out;
854
855 netxen_release_firmware(adapter);
856
857 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
858
859 /* Initialize multicast addr pool owners */
860 val = 0x7654;
861 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
862 val |= 0x0f000000;
863 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
864
865 }
866
867 err = netxen_init_dummy_dma(adapter);
868 if (err)
869 goto err_out;
870
871 /*
872 * Tell the hardware our version number.
873 */
874 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
875 | ((_NETXEN_NIC_LINUX_MINOR << 8))
876 | (_NETXEN_NIC_LINUX_SUBVERSION);
877 NXWR32(adapter, CRB_DRIVER_VERSION, val);
878
879 wait_init:
880 /* Handshake with the card before we register the devices. */
881 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
882 if (err) {
883 netxen_free_dummy_dma(adapter);
884 goto err_out;
885 }
886
887 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
888
889 nx_update_dma_mask(adapter);
890
891 netxen_check_options(adapter);
892
893 adapter->need_fw_reset = 0;
894
895 /* fall through and release firmware */
896
897 err_out:
898 netxen_release_firmware(adapter);
899 return err;
900 }
901
902 static int
903 netxen_nic_request_irq(struct netxen_adapter *adapter)
904 {
905 irq_handler_t handler;
906 struct nx_host_sds_ring *sds_ring;
907 int err, ring;
908
909 unsigned long flags = IRQF_SAMPLE_RANDOM;
910 struct net_device *netdev = adapter->netdev;
911 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
912
913 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
914 handler = netxen_msix_intr;
915 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
916 handler = netxen_msi_intr;
917 else {
918 flags |= IRQF_SHARED;
919 handler = netxen_intr;
920 }
921 adapter->irq = netdev->irq;
922
923 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
924 sds_ring = &recv_ctx->sds_rings[ring];
925 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
926 err = request_irq(sds_ring->irq, handler,
927 flags, sds_ring->name, sds_ring);
928 if (err)
929 return err;
930 }
931
932 return 0;
933 }
934
935 static void
936 netxen_nic_free_irq(struct netxen_adapter *adapter)
937 {
938 int ring;
939 struct nx_host_sds_ring *sds_ring;
940
941 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
942
943 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
944 sds_ring = &recv_ctx->sds_rings[ring];
945 free_irq(sds_ring->irq, sds_ring);
946 }
947 }
948
949 static void
950 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
951 {
952 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
953 adapter->coal.normal.data.rx_time_us =
954 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
955 adapter->coal.normal.data.rx_packets =
956 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
957 adapter->coal.normal.data.tx_time_us =
958 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
959 adapter->coal.normal.data.tx_packets =
960 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
961 }
962
963 /* with rtnl_lock */
964 static int
965 __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
966 {
967 int err;
968
969 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
970 return -EIO;
971
972 err = adapter->init_port(adapter, adapter->physical_port);
973 if (err) {
974 printk(KERN_ERR "%s: Failed to initialize port %d\n",
975 netxen_nic_driver_name, adapter->portnum);
976 return err;
977 }
978 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
979 adapter->macaddr_set(adapter, adapter->mac_addr);
980
981 adapter->set_multi(netdev);
982 adapter->set_mtu(adapter, netdev->mtu);
983
984 adapter->ahw.linkup = 0;
985
986 if (adapter->max_sds_rings > 1)
987 netxen_config_rss(adapter, 1);
988
989 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
990 netxen_config_intr_coalesce(adapter);
991
992 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
993 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
994
995 netxen_napi_enable(adapter);
996
997 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
998 netxen_linkevent_request(adapter, 1);
999 else
1000 netxen_nic_set_link_parameters(adapter);
1001
1002 set_bit(__NX_DEV_UP, &adapter->state);
1003 return 0;
1004 }
1005
1006 /* Usage: During resume and firmware recovery module.*/
1007
1008 static inline int
1009 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1010 {
1011 int err = 0;
1012
1013 rtnl_lock();
1014 if (netif_running(netdev))
1015 err = __netxen_nic_up(adapter, netdev);
1016 rtnl_unlock();
1017
1018 return err;
1019 }
1020
1021 /* with rtnl_lock */
1022 static void
1023 __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1024 {
1025 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1026 return;
1027
1028 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1029 return;
1030
1031 smp_mb();
1032 spin_lock(&adapter->tx_clean_lock);
1033 netif_carrier_off(netdev);
1034 netif_tx_disable(netdev);
1035
1036 if (adapter->stop_port)
1037 adapter->stop_port(adapter);
1038
1039 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1040 netxen_p3_free_mac_list(adapter);
1041
1042 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1043
1044 netxen_napi_disable(adapter);
1045
1046 netxen_release_tx_buffers(adapter);
1047 spin_unlock(&adapter->tx_clean_lock);
1048 }
1049
1050 /* Usage: During suspend and firmware recovery module */
1051
1052 static inline void
1053 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1054 {
1055 rtnl_lock();
1056 if (netif_running(netdev))
1057 __netxen_nic_down(adapter, netdev);
1058 rtnl_unlock();
1059
1060 }
1061
1062 static int
1063 netxen_nic_attach(struct netxen_adapter *adapter)
1064 {
1065 struct net_device *netdev = adapter->netdev;
1066 struct pci_dev *pdev = adapter->pdev;
1067 int err, ring;
1068 struct nx_host_rds_ring *rds_ring;
1069 struct nx_host_tx_ring *tx_ring;
1070
1071 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1072 return 0;
1073
1074 err = netxen_init_firmware(adapter);
1075 if (err)
1076 return err;
1077
1078 err = netxen_napi_add(adapter, netdev);
1079 if (err)
1080 return err;
1081
1082 err = netxen_alloc_sw_resources(adapter);
1083 if (err) {
1084 printk(KERN_ERR "%s: Error in setting sw resources\n",
1085 netdev->name);
1086 return err;
1087 }
1088
1089 err = netxen_alloc_hw_resources(adapter);
1090 if (err) {
1091 printk(KERN_ERR "%s: Error in setting hw resources\n",
1092 netdev->name);
1093 goto err_out_free_sw;
1094 }
1095
1096 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1097 tx_ring = adapter->tx_ring;
1098 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1099 crb_cmd_producer[adapter->portnum]);
1100 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1101 crb_cmd_consumer[adapter->portnum]);
1102
1103 tx_ring->producer = 0;
1104 tx_ring->sw_consumer = 0;
1105
1106 netxen_nic_update_cmd_producer(adapter, tx_ring);
1107 netxen_nic_update_cmd_consumer(adapter, tx_ring);
1108 }
1109
1110 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1111 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1112 netxen_post_rx_buffers(adapter, ring, rds_ring);
1113 }
1114
1115 err = netxen_nic_request_irq(adapter);
1116 if (err) {
1117 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1118 netdev->name);
1119 goto err_out_free_rxbuf;
1120 }
1121
1122 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1123 netxen_nic_init_coalesce_defaults(adapter);
1124
1125 netxen_create_sysfs_entries(adapter);
1126
1127 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1128 return 0;
1129
1130 err_out_free_rxbuf:
1131 netxen_release_rx_buffers(adapter);
1132 netxen_free_hw_resources(adapter);
1133 err_out_free_sw:
1134 netxen_free_sw_resources(adapter);
1135 return err;
1136 }
1137
1138 static void
1139 netxen_nic_detach(struct netxen_adapter *adapter)
1140 {
1141 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1142 return;
1143
1144 netxen_remove_sysfs_entries(adapter);
1145
1146 netxen_free_hw_resources(adapter);
1147 netxen_release_rx_buffers(adapter);
1148 netxen_nic_free_irq(adapter);
1149 netxen_napi_del(adapter);
1150 netxen_free_sw_resources(adapter);
1151
1152 adapter->is_up = 0;
1153 }
1154
1155 int
1156 netxen_nic_reset_context(struct netxen_adapter *adapter)
1157 {
1158 int err = 0;
1159 struct net_device *netdev = adapter->netdev;
1160
1161 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1162 return -EBUSY;
1163
1164 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1165
1166 netif_device_detach(netdev);
1167
1168 if (netif_running(netdev))
1169 __netxen_nic_down(adapter, netdev);
1170
1171 netxen_nic_detach(adapter);
1172
1173 if (netif_running(netdev)) {
1174 err = netxen_nic_attach(adapter);
1175 if (!err)
1176 err = __netxen_nic_up(adapter, netdev);
1177
1178 if (err)
1179 goto done;
1180 }
1181
1182 netif_device_attach(netdev);
1183 }
1184
1185 done:
1186 clear_bit(__NX_RESETTING, &adapter->state);
1187 return err;
1188 }
1189
1190 static int
1191 netxen_setup_netdev(struct netxen_adapter *adapter,
1192 struct net_device *netdev)
1193 {
1194 int err = 0;
1195 struct pci_dev *pdev = adapter->pdev;
1196
1197 adapter->rx_csum = 1;
1198 adapter->mc_enabled = 0;
1199 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1200 adapter->max_mc_count = 38;
1201 else
1202 adapter->max_mc_count = 16;
1203
1204 netdev->netdev_ops = &netxen_netdev_ops;
1205 netdev->watchdog_timeo = 2*HZ;
1206
1207 netxen_nic_change_mtu(netdev, netdev->mtu);
1208
1209 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1210
1211 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1212 netdev->features |= (NETIF_F_GRO);
1213 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1214
1215 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1216 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1217 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1218 }
1219
1220 if (adapter->pci_using_dac) {
1221 netdev->features |= NETIF_F_HIGHDMA;
1222 netdev->vlan_features |= NETIF_F_HIGHDMA;
1223 }
1224
1225 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1226 netdev->features |= (NETIF_F_HW_VLAN_TX);
1227
1228 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1229 netdev->features |= NETIF_F_LRO;
1230
1231 netdev->irq = adapter->msix_entries[0].vector;
1232
1233 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1234
1235 if (netxen_read_mac_addr(adapter))
1236 dev_warn(&pdev->dev, "failed to read mac addr\n");
1237
1238 netif_carrier_off(netdev);
1239 netif_stop_queue(netdev);
1240
1241 err = register_netdev(netdev);
1242 if (err) {
1243 dev_err(&pdev->dev, "failed to register net device\n");
1244 return err;
1245 }
1246
1247 return 0;
1248 }
1249
1250 static int __devinit
1251 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1252 {
1253 struct net_device *netdev = NULL;
1254 struct netxen_adapter *adapter = NULL;
1255 int i = 0, err;
1256 int pci_func_id = PCI_FUNC(pdev->devfn);
1257 uint8_t revision_id;
1258
1259 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1260 pr_warning("%s: chip revisions between 0x%x-0x%x "
1261 "will not be enabled.\n",
1262 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
1263 return -ENODEV;
1264 }
1265
1266 if ((err = pci_enable_device(pdev)))
1267 return err;
1268
1269 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1270 err = -ENODEV;
1271 goto err_out_disable_pdev;
1272 }
1273
1274 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1275 goto err_out_disable_pdev;
1276
1277 if (NX_IS_REVISION_P3(pdev->revision))
1278 pci_enable_pcie_error_reporting(pdev);
1279
1280 pci_set_master(pdev);
1281
1282 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1283 if(!netdev) {
1284 dev_err(&pdev->dev, "failed to allocate net_device\n");
1285 err = -ENOMEM;
1286 goto err_out_free_res;
1287 }
1288
1289 SET_NETDEV_DEV(netdev, &pdev->dev);
1290
1291 adapter = netdev_priv(netdev);
1292 adapter->netdev = netdev;
1293 adapter->pdev = pdev;
1294 adapter->ahw.pci_func = pci_func_id;
1295
1296 revision_id = pdev->revision;
1297 adapter->ahw.revision_id = revision_id;
1298
1299 rwlock_init(&adapter->ahw.crb_lock);
1300 spin_lock_init(&adapter->ahw.mem_lock);
1301
1302 spin_lock_init(&adapter->tx_clean_lock);
1303 INIT_LIST_HEAD(&adapter->mac_list);
1304
1305 err = netxen_setup_pci_map(adapter);
1306 if (err)
1307 goto err_out_free_netdev;
1308
1309 /* This will be reset for mezz cards */
1310 adapter->portnum = pci_func_id;
1311
1312 err = netxen_nic_get_board_info(adapter);
1313 if (err) {
1314 dev_err(&pdev->dev, "Error getting board config info.\n");
1315 goto err_out_iounmap;
1316 }
1317
1318 /* Mezz cards have PCI function 0,2,3 enabled */
1319 switch (adapter->ahw.board_type) {
1320 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1321 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1322 if (pci_func_id >= 2)
1323 adapter->portnum = pci_func_id - 2;
1324 break;
1325 default:
1326 break;
1327 }
1328
1329 err = netxen_start_firmware(adapter);
1330 if (err)
1331 goto err_out_decr_ref;
1332
1333 /*
1334 * See if the firmware gave us a virtual-physical port mapping.
1335 */
1336 adapter->physical_port = adapter->portnum;
1337 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1338 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1339 if (i != 0x55555555)
1340 adapter->physical_port = i;
1341 }
1342
1343 netxen_nic_clear_stats(adapter);
1344
1345 netxen_setup_intr(adapter);
1346
1347 err = netxen_setup_netdev(adapter, netdev);
1348 if (err)
1349 goto err_out_disable_msi;
1350
1351 pci_set_drvdata(pdev, adapter);
1352
1353 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1354
1355 switch (adapter->ahw.port_type) {
1356 case NETXEN_NIC_GBE:
1357 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1358 adapter->netdev->name);
1359 break;
1360 case NETXEN_NIC_XGBE:
1361 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1362 adapter->netdev->name);
1363 break;
1364 }
1365
1366 netxen_create_diag_entries(adapter);
1367
1368 return 0;
1369
1370 err_out_disable_msi:
1371 netxen_teardown_intr(adapter);
1372
1373 netxen_free_dummy_dma(adapter);
1374
1375 err_out_decr_ref:
1376 nx_decr_dev_ref_cnt(adapter);
1377
1378 err_out_iounmap:
1379 netxen_cleanup_pci_map(adapter);
1380
1381 err_out_free_netdev:
1382 free_netdev(netdev);
1383
1384 err_out_free_res:
1385 pci_release_regions(pdev);
1386
1387 err_out_disable_pdev:
1388 pci_set_drvdata(pdev, NULL);
1389 pci_disable_device(pdev);
1390 return err;
1391 }
1392
1393 static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1394 {
1395 struct netxen_adapter *adapter;
1396 struct net_device *netdev;
1397
1398 adapter = pci_get_drvdata(pdev);
1399 if (adapter == NULL)
1400 return;
1401
1402 netdev = adapter->netdev;
1403
1404 netxen_cancel_fw_work(adapter);
1405
1406 unregister_netdev(netdev);
1407
1408 cancel_work_sync(&adapter->tx_timeout_task);
1409
1410 netxen_nic_detach(adapter);
1411
1412 nx_decr_dev_ref_cnt(adapter);
1413
1414 if (adapter->portnum == 0)
1415 netxen_free_dummy_dma(adapter);
1416
1417 clear_bit(__NX_RESETTING, &adapter->state);
1418
1419 netxen_teardown_intr(adapter);
1420
1421 netxen_remove_diag_entries(adapter);
1422
1423 netxen_cleanup_pci_map(adapter);
1424
1425 netxen_release_firmware(adapter);
1426
1427 if (NX_IS_REVISION_P3(pdev->revision))
1428 pci_disable_pcie_error_reporting(pdev);
1429
1430 pci_release_regions(pdev);
1431 pci_disable_device(pdev);
1432 pci_set_drvdata(pdev, NULL);
1433
1434 free_netdev(netdev);
1435 }
1436
1437 static void netxen_nic_detach_func(struct netxen_adapter *adapter)
1438 {
1439 struct net_device *netdev = adapter->netdev;
1440
1441 netif_device_detach(netdev);
1442
1443 netxen_cancel_fw_work(adapter);
1444
1445 if (netif_running(netdev))
1446 netxen_nic_down(adapter, netdev);
1447
1448 cancel_work_sync(&adapter->tx_timeout_task);
1449
1450 netxen_nic_detach(adapter);
1451
1452 if (adapter->portnum == 0)
1453 netxen_free_dummy_dma(adapter);
1454
1455 nx_decr_dev_ref_cnt(adapter);
1456
1457 clear_bit(__NX_RESETTING, &adapter->state);
1458 }
1459
1460 static int netxen_nic_attach_func(struct pci_dev *pdev)
1461 {
1462 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1463 struct net_device *netdev = adapter->netdev;
1464 int err;
1465
1466 err = pci_enable_device(pdev);
1467 if (err)
1468 return err;
1469
1470 pci_set_power_state(pdev, PCI_D0);
1471 pci_set_master(pdev);
1472 pci_restore_state(pdev);
1473
1474 adapter->ahw.crb_win = -1;
1475 adapter->ahw.ocm_win = -1;
1476
1477 err = netxen_start_firmware(adapter);
1478 if (err) {
1479 dev_err(&pdev->dev, "failed to start firmware\n");
1480 return err;
1481 }
1482
1483 if (netif_running(netdev)) {
1484 err = netxen_nic_attach(adapter);
1485 if (err)
1486 goto err_out;
1487
1488 err = netxen_nic_up(adapter, netdev);
1489 if (err)
1490 goto err_out_detach;
1491
1492 netxen_config_indev_addr(netdev, NETDEV_UP);
1493 }
1494
1495 netif_device_attach(netdev);
1496 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1497 return 0;
1498
1499 err_out_detach:
1500 netxen_nic_detach(adapter);
1501 err_out:
1502 nx_decr_dev_ref_cnt(adapter);
1503 return err;
1504 }
1505
1506 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1507 pci_channel_state_t state)
1508 {
1509 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1510
1511 if (state == pci_channel_io_perm_failure)
1512 return PCI_ERS_RESULT_DISCONNECT;
1513
1514 if (nx_dev_request_aer(adapter))
1515 return PCI_ERS_RESULT_RECOVERED;
1516
1517 netxen_nic_detach_func(adapter);
1518
1519 pci_disable_device(pdev);
1520
1521 return PCI_ERS_RESULT_NEED_RESET;
1522 }
1523
1524 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1525 {
1526 int err = 0;
1527
1528 err = netxen_nic_attach_func(pdev);
1529
1530 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1531 }
1532
1533 static void netxen_io_resume(struct pci_dev *pdev)
1534 {
1535 pci_cleanup_aer_uncorrect_error_status(pdev);
1536 }
1537
1538 static void netxen_nic_shutdown(struct pci_dev *pdev)
1539 {
1540 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1541
1542 netxen_nic_detach_func(adapter);
1543
1544 if (pci_save_state(pdev))
1545 return;
1546
1547 if (netxen_nic_wol_supported(adapter)) {
1548 pci_enable_wake(pdev, PCI_D3cold, 1);
1549 pci_enable_wake(pdev, PCI_D3hot, 1);
1550 }
1551
1552 pci_disable_device(pdev);
1553 }
1554
1555 #ifdef CONFIG_PM
1556 static int
1557 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1558 {
1559 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1560 int retval;
1561
1562 netxen_nic_detach_func(adapter);
1563
1564 retval = pci_save_state(pdev);
1565 if (retval)
1566 return retval;
1567
1568 if (netxen_nic_wol_supported(adapter)) {
1569 pci_enable_wake(pdev, PCI_D3cold, 1);
1570 pci_enable_wake(pdev, PCI_D3hot, 1);
1571 }
1572
1573 pci_disable_device(pdev);
1574 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1575
1576 return 0;
1577 }
1578
1579 static int
1580 netxen_nic_resume(struct pci_dev *pdev)
1581 {
1582 return netxen_nic_attach_func(pdev);
1583 }
1584 #endif
1585
1586 static int netxen_nic_open(struct net_device *netdev)
1587 {
1588 struct netxen_adapter *adapter = netdev_priv(netdev);
1589 int err = 0;
1590
1591 if (adapter->driver_mismatch)
1592 return -EIO;
1593
1594 err = netxen_nic_attach(adapter);
1595 if (err)
1596 return err;
1597
1598 err = __netxen_nic_up(adapter, netdev);
1599 if (err)
1600 goto err_out;
1601
1602 netif_start_queue(netdev);
1603
1604 return 0;
1605
1606 err_out:
1607 netxen_nic_detach(adapter);
1608 return err;
1609 }
1610
1611 /*
1612 * netxen_nic_close - Disables a network interface entry point
1613 */
1614 static int netxen_nic_close(struct net_device *netdev)
1615 {
1616 struct netxen_adapter *adapter = netdev_priv(netdev);
1617
1618 __netxen_nic_down(adapter, netdev);
1619 return 0;
1620 }
1621
1622 static void
1623 netxen_tso_check(struct net_device *netdev,
1624 struct nx_host_tx_ring *tx_ring,
1625 struct cmd_desc_type0 *first_desc,
1626 struct sk_buff *skb)
1627 {
1628 u8 opcode = TX_ETHER_PKT;
1629 __be16 protocol = skb->protocol;
1630 u16 flags = 0, vid = 0;
1631 u32 producer;
1632 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1633 struct cmd_desc_type0 *hwdesc;
1634 struct vlan_ethhdr *vh;
1635
1636 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1637
1638 vh = (struct vlan_ethhdr *)skb->data;
1639 protocol = vh->h_vlan_encapsulated_proto;
1640 flags = FLAGS_VLAN_TAGGED;
1641
1642 } else if (vlan_tx_tag_present(skb)) {
1643
1644 flags = FLAGS_VLAN_OOB;
1645 vid = vlan_tx_tag_get(skb);
1646 netxen_set_tx_vlan_tci(first_desc, vid);
1647 vlan_oob = 1;
1648 }
1649
1650 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1651 skb_shinfo(skb)->gso_size > 0) {
1652
1653 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1654
1655 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1656 first_desc->total_hdr_length = hdr_len;
1657 if (vlan_oob) {
1658 first_desc->total_hdr_length += VLAN_HLEN;
1659 first_desc->tcp_hdr_offset = VLAN_HLEN;
1660 first_desc->ip_hdr_offset = VLAN_HLEN;
1661 /* Only in case of TSO on vlan device */
1662 flags |= FLAGS_VLAN_TAGGED;
1663 }
1664
1665 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1666 TX_TCP_LSO6 : TX_TCP_LSO;
1667 tso = 1;
1668
1669 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1670 u8 l4proto;
1671
1672 if (protocol == cpu_to_be16(ETH_P_IP)) {
1673 l4proto = ip_hdr(skb)->protocol;
1674
1675 if (l4proto == IPPROTO_TCP)
1676 opcode = TX_TCP_PKT;
1677 else if(l4proto == IPPROTO_UDP)
1678 opcode = TX_UDP_PKT;
1679 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1680 l4proto = ipv6_hdr(skb)->nexthdr;
1681
1682 if (l4proto == IPPROTO_TCP)
1683 opcode = TX_TCPV6_PKT;
1684 else if(l4proto == IPPROTO_UDP)
1685 opcode = TX_UDPV6_PKT;
1686 }
1687 }
1688
1689 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1690 first_desc->ip_hdr_offset += skb_network_offset(skb);
1691 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1692
1693 if (!tso)
1694 return;
1695
1696 /* For LSO, we need to copy the MAC/IP/TCP headers into
1697 * the descriptor ring
1698 */
1699 producer = tx_ring->producer;
1700 copied = 0;
1701 offset = 2;
1702
1703 if (vlan_oob) {
1704 /* Create a TSO vlan header template for firmware */
1705
1706 hwdesc = &tx_ring->desc_head[producer];
1707 tx_ring->cmd_buf_arr[producer].skb = NULL;
1708
1709 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1710 hdr_len + VLAN_HLEN);
1711
1712 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1713 skb_copy_from_linear_data(skb, vh, 12);
1714 vh->h_vlan_proto = htons(ETH_P_8021Q);
1715 vh->h_vlan_TCI = htons(vid);
1716 skb_copy_from_linear_data_offset(skb, 12,
1717 (char *)vh + 16, copy_len - 16);
1718
1719 copied = copy_len - VLAN_HLEN;
1720 offset = 0;
1721
1722 producer = get_next_index(producer, tx_ring->num_desc);
1723 }
1724
1725 while (copied < hdr_len) {
1726
1727 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1728 (hdr_len - copied));
1729
1730 hwdesc = &tx_ring->desc_head[producer];
1731 tx_ring->cmd_buf_arr[producer].skb = NULL;
1732
1733 skb_copy_from_linear_data_offset(skb, copied,
1734 (char *)hwdesc + offset, copy_len);
1735
1736 copied += copy_len;
1737 offset = 0;
1738
1739 producer = get_next_index(producer, tx_ring->num_desc);
1740 }
1741
1742 tx_ring->producer = producer;
1743 barrier();
1744 }
1745
1746 static int
1747 netxen_map_tx_skb(struct pci_dev *pdev,
1748 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1749 {
1750 struct netxen_skb_frag *nf;
1751 struct skb_frag_struct *frag;
1752 int i, nr_frags;
1753 dma_addr_t map;
1754
1755 nr_frags = skb_shinfo(skb)->nr_frags;
1756 nf = &pbuf->frag_array[0];
1757
1758 map = pci_map_single(pdev, skb->data,
1759 skb_headlen(skb), PCI_DMA_TODEVICE);
1760 if (pci_dma_mapping_error(pdev, map))
1761 goto out_err;
1762
1763 nf->dma = map;
1764 nf->length = skb_headlen(skb);
1765
1766 for (i = 0; i < nr_frags; i++) {
1767 frag = &skb_shinfo(skb)->frags[i];
1768 nf = &pbuf->frag_array[i+1];
1769
1770 map = pci_map_page(pdev, frag->page, frag->page_offset,
1771 frag->size, PCI_DMA_TODEVICE);
1772 if (pci_dma_mapping_error(pdev, map))
1773 goto unwind;
1774
1775 nf->dma = map;
1776 nf->length = frag->size;
1777 }
1778
1779 return 0;
1780
1781 unwind:
1782 while (--i >= 0) {
1783 nf = &pbuf->frag_array[i+1];
1784 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1785 }
1786
1787 nf = &pbuf->frag_array[0];
1788 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1789
1790 out_err:
1791 return -ENOMEM;
1792 }
1793
1794 static inline void
1795 netxen_clear_cmddesc(u64 *desc)
1796 {
1797 desc[0] = 0ULL;
1798 desc[2] = 0ULL;
1799 }
1800
1801 static netdev_tx_t
1802 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1803 {
1804 struct netxen_adapter *adapter = netdev_priv(netdev);
1805 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1806 struct netxen_cmd_buffer *pbuf;
1807 struct netxen_skb_frag *buffrag;
1808 struct cmd_desc_type0 *hwdesc, *first_desc;
1809 struct pci_dev *pdev;
1810 int i, k;
1811
1812 u32 producer;
1813 int frag_count, no_of_desc;
1814 u32 num_txd = tx_ring->num_desc;
1815
1816 frag_count = skb_shinfo(skb)->nr_frags + 1;
1817
1818 /* 4 fragments per cmd des */
1819 no_of_desc = (frag_count + 3) >> 2;
1820
1821 if (unlikely(no_of_desc + 2 > netxen_tx_avail(tx_ring))) {
1822 netif_stop_queue(netdev);
1823 return NETDEV_TX_BUSY;
1824 }
1825
1826 producer = tx_ring->producer;
1827 pbuf = &tx_ring->cmd_buf_arr[producer];
1828
1829 pdev = adapter->pdev;
1830
1831 if (netxen_map_tx_skb(pdev, skb, pbuf))
1832 goto drop_packet;
1833
1834 pbuf->skb = skb;
1835 pbuf->frag_count = frag_count;
1836
1837 first_desc = hwdesc = &tx_ring->desc_head[producer];
1838 netxen_clear_cmddesc((u64 *)hwdesc);
1839
1840 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1841 netxen_set_tx_port(first_desc, adapter->portnum);
1842
1843 for (i = 0; i < frag_count; i++) {
1844
1845 k = i % 4;
1846
1847 if ((k == 0) && (i > 0)) {
1848 /* move to next desc.*/
1849 producer = get_next_index(producer, num_txd);
1850 hwdesc = &tx_ring->desc_head[producer];
1851 netxen_clear_cmddesc((u64 *)hwdesc);
1852 tx_ring->cmd_buf_arr[producer].skb = NULL;
1853 }
1854
1855 buffrag = &pbuf->frag_array[i];
1856
1857 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
1858 switch (k) {
1859 case 0:
1860 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1861 break;
1862 case 1:
1863 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
1864 break;
1865 case 2:
1866 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
1867 break;
1868 case 3:
1869 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
1870 break;
1871 }
1872 }
1873
1874 tx_ring->producer = get_next_index(producer, num_txd);
1875
1876 netxen_tso_check(netdev, tx_ring, first_desc, skb);
1877
1878 netxen_nic_update_cmd_producer(adapter, tx_ring);
1879
1880 adapter->stats.txbytes += skb->len;
1881 adapter->stats.xmitcalled++;
1882
1883 return NETDEV_TX_OK;
1884
1885 drop_packet:
1886 adapter->stats.txdropped++;
1887 dev_kfree_skb_any(skb);
1888 return NETDEV_TX_OK;
1889 }
1890
1891 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1892 {
1893 struct net_device *netdev = adapter->netdev;
1894 uint32_t temp, temp_state, temp_val;
1895 int rv = 0;
1896
1897 temp = NXRD32(adapter, CRB_TEMP_STATE);
1898
1899 temp_state = nx_get_temp_state(temp);
1900 temp_val = nx_get_temp_val(temp);
1901
1902 if (temp_state == NX_TEMP_PANIC) {
1903 printk(KERN_ALERT
1904 "%s: Device temperature %d degrees C exceeds"
1905 " maximum allowed. Hardware has been shut down.\n",
1906 netdev->name, temp_val);
1907 rv = 1;
1908 } else if (temp_state == NX_TEMP_WARN) {
1909 if (adapter->temp == NX_TEMP_NORMAL) {
1910 printk(KERN_ALERT
1911 "%s: Device temperature %d degrees C "
1912 "exceeds operating range."
1913 " Immediate action needed.\n",
1914 netdev->name, temp_val);
1915 }
1916 } else {
1917 if (adapter->temp == NX_TEMP_WARN) {
1918 printk(KERN_INFO
1919 "%s: Device temperature is now %d degrees C"
1920 " in normal range.\n", netdev->name,
1921 temp_val);
1922 }
1923 }
1924 adapter->temp = temp_state;
1925 return rv;
1926 }
1927
1928 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
1929 {
1930 struct net_device *netdev = adapter->netdev;
1931
1932 if (adapter->ahw.linkup && !linkup) {
1933 printk(KERN_INFO "%s: %s NIC Link is down\n",
1934 netxen_nic_driver_name, netdev->name);
1935 adapter->ahw.linkup = 0;
1936 if (netif_running(netdev)) {
1937 netif_carrier_off(netdev);
1938 netif_stop_queue(netdev);
1939 }
1940 adapter->link_changed = !adapter->has_link_events;
1941 } else if (!adapter->ahw.linkup && linkup) {
1942 printk(KERN_INFO "%s: %s NIC Link is up\n",
1943 netxen_nic_driver_name, netdev->name);
1944 adapter->ahw.linkup = 1;
1945 if (netif_running(netdev)) {
1946 netif_carrier_on(netdev);
1947 netif_wake_queue(netdev);
1948 }
1949 adapter->link_changed = !adapter->has_link_events;
1950 }
1951 }
1952
1953 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1954 {
1955 u32 val, port, linkup;
1956
1957 port = adapter->physical_port;
1958
1959 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1960 val = NXRD32(adapter, CRB_XG_STATE_P3);
1961 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1962 linkup = (val == XG_LINK_UP_P3);
1963 } else {
1964 val = NXRD32(adapter, CRB_XG_STATE);
1965 val = (val >> port*8) & 0xff;
1966 linkup = (val == XG_LINK_UP);
1967 }
1968
1969 netxen_advert_link_change(adapter, linkup);
1970 }
1971
1972 static void netxen_tx_timeout(struct net_device *netdev)
1973 {
1974 struct netxen_adapter *adapter = netdev_priv(netdev);
1975
1976 if (test_bit(__NX_RESETTING, &adapter->state))
1977 return;
1978
1979 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
1980 schedule_work(&adapter->tx_timeout_task);
1981 }
1982
1983 static void netxen_tx_timeout_task(struct work_struct *work)
1984 {
1985 struct netxen_adapter *adapter =
1986 container_of(work, struct netxen_adapter, tx_timeout_task);
1987
1988 if (!netif_running(adapter->netdev))
1989 return;
1990
1991 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1992 return;
1993
1994 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
1995 goto request_reset;
1996
1997 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1998 /* try to scrub interrupt */
1999 netxen_napi_disable(adapter);
2000
2001 adapter->netdev->trans_start = jiffies;
2002
2003 netxen_napi_enable(adapter);
2004
2005 netif_wake_queue(adapter->netdev);
2006
2007 clear_bit(__NX_RESETTING, &adapter->state);
2008 return;
2009 } else {
2010 clear_bit(__NX_RESETTING, &adapter->state);
2011 if (!netxen_nic_reset_context(adapter)) {
2012 adapter->netdev->trans_start = jiffies;
2013 return;
2014 }
2015
2016 /* context reset failed, fall through for fw reset */
2017 }
2018
2019 request_reset:
2020 adapter->need_fw_reset = 1;
2021 clear_bit(__NX_RESETTING, &adapter->state);
2022 }
2023
2024 struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
2025 {
2026 struct netxen_adapter *adapter = netdev_priv(netdev);
2027 struct net_device_stats *stats = &netdev->stats;
2028
2029 memset(stats, 0, sizeof(*stats));
2030
2031 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2032 stats->tx_packets = adapter->stats.xmitfinished;
2033 stats->rx_bytes = adapter->stats.rxbytes;
2034 stats->tx_bytes = adapter->stats.txbytes;
2035 stats->rx_dropped = adapter->stats.rxdropped;
2036 stats->tx_dropped = adapter->stats.txdropped;
2037
2038 return stats;
2039 }
2040
2041 static irqreturn_t netxen_intr(int irq, void *data)
2042 {
2043 struct nx_host_sds_ring *sds_ring = data;
2044 struct netxen_adapter *adapter = sds_ring->adapter;
2045 u32 status = 0;
2046
2047 status = readl(adapter->isr_int_vec);
2048
2049 if (!(status & adapter->int_vec_bit))
2050 return IRQ_NONE;
2051
2052 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2053 /* check interrupt state machine, to be sure */
2054 status = readl(adapter->crb_int_state_reg);
2055 if (!ISR_LEGACY_INT_TRIGGERED(status))
2056 return IRQ_NONE;
2057
2058 } else {
2059 unsigned long our_int = 0;
2060
2061 our_int = readl(adapter->crb_int_state_reg);
2062
2063 /* not our interrupt */
2064 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2065 return IRQ_NONE;
2066
2067 /* claim interrupt */
2068 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2069
2070 /* clear interrupt */
2071 netxen_nic_disable_int(sds_ring);
2072 }
2073
2074 writel(0xffffffff, adapter->tgt_status_reg);
2075 /* read twice to ensure write is flushed */
2076 readl(adapter->isr_int_vec);
2077 readl(adapter->isr_int_vec);
2078
2079 napi_schedule(&sds_ring->napi);
2080
2081 return IRQ_HANDLED;
2082 }
2083
2084 static irqreturn_t netxen_msi_intr(int irq, void *data)
2085 {
2086 struct nx_host_sds_ring *sds_ring = data;
2087 struct netxen_adapter *adapter = sds_ring->adapter;
2088
2089 /* clear interrupt */
2090 writel(0xffffffff, adapter->tgt_status_reg);
2091
2092 napi_schedule(&sds_ring->napi);
2093 return IRQ_HANDLED;
2094 }
2095
2096 static irqreturn_t netxen_msix_intr(int irq, void *data)
2097 {
2098 struct nx_host_sds_ring *sds_ring = data;
2099
2100 napi_schedule(&sds_ring->napi);
2101 return IRQ_HANDLED;
2102 }
2103
2104 static int netxen_nic_poll(struct napi_struct *napi, int budget)
2105 {
2106 struct nx_host_sds_ring *sds_ring =
2107 container_of(napi, struct nx_host_sds_ring, napi);
2108
2109 struct netxen_adapter *adapter = sds_ring->adapter;
2110
2111 int tx_complete;
2112 int work_done;
2113
2114 tx_complete = netxen_process_cmd_ring(adapter);
2115
2116 work_done = netxen_process_rcv_ring(sds_ring, budget);
2117
2118 if ((work_done < budget) && tx_complete) {
2119 napi_complete(&sds_ring->napi);
2120 if (test_bit(__NX_DEV_UP, &adapter->state))
2121 netxen_nic_enable_int(sds_ring);
2122 }
2123
2124 return work_done;
2125 }
2126
2127 #ifdef CONFIG_NET_POLL_CONTROLLER
2128 static void netxen_nic_poll_controller(struct net_device *netdev)
2129 {
2130 struct netxen_adapter *adapter = netdev_priv(netdev);
2131 disable_irq(adapter->irq);
2132 netxen_intr(adapter->irq, adapter);
2133 enable_irq(adapter->irq);
2134 }
2135 #endif
2136
2137 static int
2138 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2139 {
2140 int count;
2141 if (netxen_api_lock(adapter))
2142 return -EIO;
2143
2144 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2145
2146 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2147
2148 netxen_api_unlock(adapter);
2149 return count;
2150 }
2151
2152 static int
2153 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2154 {
2155 int count;
2156 if (netxen_api_lock(adapter))
2157 return -EIO;
2158
2159 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2160 WARN_ON(count == 0);
2161
2162 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2163
2164 if (count == 0)
2165 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2166
2167 netxen_api_unlock(adapter);
2168 return count;
2169 }
2170
2171 static int
2172 nx_dev_request_aer(struct netxen_adapter *adapter)
2173 {
2174 u32 state;
2175 int ret = -EINVAL;
2176
2177 if (netxen_api_lock(adapter))
2178 return ret;
2179
2180 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2181
2182 if (state == NX_DEV_NEED_AER)
2183 ret = 0;
2184 else if (state == NX_DEV_READY) {
2185 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2186 ret = 0;
2187 }
2188
2189 netxen_api_unlock(adapter);
2190 return ret;
2191 }
2192
2193 static int
2194 nx_dev_request_reset(struct netxen_adapter *adapter)
2195 {
2196 u32 state;
2197 int ret = -EINVAL;
2198
2199 if (netxen_api_lock(adapter))
2200 return ret;
2201
2202 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2203
2204 if (state == NX_DEV_NEED_RESET)
2205 ret = 0;
2206 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
2207 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2208 ret = 0;
2209 }
2210
2211 netxen_api_unlock(adapter);
2212
2213 return ret;
2214 }
2215
2216 static int
2217 netxen_can_start_firmware(struct netxen_adapter *adapter)
2218 {
2219 int count;
2220 int can_start = 0;
2221
2222 if (netxen_api_lock(adapter))
2223 return 0;
2224
2225 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2226
2227 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2228 count = 0;
2229
2230 if (count == 0) {
2231 can_start = 1;
2232 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2233 }
2234
2235 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2236
2237 netxen_api_unlock(adapter);
2238
2239 return can_start;
2240 }
2241
2242 static void
2243 netxen_schedule_work(struct netxen_adapter *adapter,
2244 work_func_t func, int delay)
2245 {
2246 INIT_DELAYED_WORK(&adapter->fw_work, func);
2247 schedule_delayed_work(&adapter->fw_work, delay);
2248 }
2249
2250 static void
2251 netxen_cancel_fw_work(struct netxen_adapter *adapter)
2252 {
2253 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2254 msleep(10);
2255
2256 cancel_delayed_work_sync(&adapter->fw_work);
2257 }
2258
2259 static void
2260 netxen_attach_work(struct work_struct *work)
2261 {
2262 struct netxen_adapter *adapter = container_of(work,
2263 struct netxen_adapter, fw_work.work);
2264 struct net_device *netdev = adapter->netdev;
2265 int err = 0;
2266
2267 if (netif_running(netdev)) {
2268 err = netxen_nic_attach(adapter);
2269 if (err)
2270 goto done;
2271
2272 err = netxen_nic_up(adapter, netdev);
2273 if (err) {
2274 netxen_nic_detach(adapter);
2275 goto done;
2276 }
2277
2278 netxen_config_indev_addr(netdev, NETDEV_UP);
2279 }
2280
2281 netif_device_attach(netdev);
2282
2283 done:
2284 adapter->fw_fail_cnt = 0;
2285 clear_bit(__NX_RESETTING, &adapter->state);
2286 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2287 }
2288
2289 static void
2290 netxen_fwinit_work(struct work_struct *work)
2291 {
2292 struct netxen_adapter *adapter = container_of(work,
2293 struct netxen_adapter, fw_work.work);
2294 int dev_state;
2295
2296 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2297
2298 switch (dev_state) {
2299 case NX_DEV_COLD:
2300 case NX_DEV_READY:
2301 if (!netxen_start_firmware(adapter)) {
2302 netxen_schedule_work(adapter, netxen_attach_work, 0);
2303 return;
2304 }
2305 break;
2306
2307 case NX_DEV_INITALIZING:
2308 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2309 netxen_schedule_work(adapter,
2310 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2311 return;
2312 }
2313
2314 case NX_DEV_FAILED:
2315 default:
2316 nx_incr_dev_ref_cnt(adapter);
2317 break;
2318 }
2319
2320 clear_bit(__NX_RESETTING, &adapter->state);
2321 }
2322
2323 static void
2324 netxen_detach_work(struct work_struct *work)
2325 {
2326 struct netxen_adapter *adapter = container_of(work,
2327 struct netxen_adapter, fw_work.work);
2328 struct net_device *netdev = adapter->netdev;
2329 int ref_cnt, delay;
2330 u32 status;
2331
2332 netif_device_detach(netdev);
2333
2334 netxen_nic_down(adapter, netdev);
2335
2336 rtnl_lock();
2337 netxen_nic_detach(adapter);
2338 rtnl_unlock();
2339
2340 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2341
2342 if (status & NX_RCODE_FATAL_ERROR)
2343 goto err_ret;
2344
2345 if (adapter->temp == NX_TEMP_PANIC)
2346 goto err_ret;
2347
2348 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2349
2350 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2351
2352 adapter->fw_wait_cnt = 0;
2353 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2354
2355 return;
2356
2357 err_ret:
2358 clear_bit(__NX_RESETTING, &adapter->state);
2359 }
2360
2361 static int
2362 netxen_check_health(struct netxen_adapter *adapter)
2363 {
2364 u32 state, heartbit;
2365 struct net_device *netdev = adapter->netdev;
2366
2367 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2368 if (state == NX_DEV_NEED_AER)
2369 return 0;
2370
2371 if (netxen_nic_check_temp(adapter))
2372 goto detach;
2373
2374 if (adapter->need_fw_reset) {
2375 if (nx_dev_request_reset(adapter))
2376 return 0;
2377 goto detach;
2378 }
2379
2380 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2381 * 1. Tx timeout 2. Fw hang
2382 * Send request to destroy context in case of tx timeout only
2383 * and doesn't required in case of Fw hang
2384 */
2385 if (state == NX_DEV_NEED_RESET) {
2386 adapter->need_fw_reset = 1;
2387 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2388 goto detach;
2389 }
2390
2391 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2392 return 0;
2393
2394 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2395 if (heartbit != adapter->heartbit) {
2396 adapter->heartbit = heartbit;
2397 adapter->fw_fail_cnt = 0;
2398 if (adapter->need_fw_reset)
2399 goto detach;
2400 return 0;
2401 }
2402
2403 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2404 return 0;
2405
2406 if (nx_dev_request_reset(adapter))
2407 return 0;
2408
2409 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2410
2411 dev_info(&netdev->dev, "firmware hang detected\n");
2412
2413 detach:
2414 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2415 !test_and_set_bit(__NX_RESETTING, &adapter->state))
2416 netxen_schedule_work(adapter, netxen_detach_work, 0);
2417 return 1;
2418 }
2419
2420 static void
2421 netxen_fw_poll_work(struct work_struct *work)
2422 {
2423 struct netxen_adapter *adapter = container_of(work,
2424 struct netxen_adapter, fw_work.work);
2425
2426 if (test_bit(__NX_RESETTING, &adapter->state))
2427 goto reschedule;
2428
2429 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2430 if (!adapter->has_link_events) {
2431
2432 netxen_nic_handle_phy_intr(adapter);
2433
2434 if (adapter->link_changed)
2435 netxen_nic_set_link_parameters(adapter);
2436 }
2437 }
2438
2439 if (netxen_check_health(adapter))
2440 return;
2441
2442 reschedule:
2443 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2444 }
2445
2446 static ssize_t
2447 netxen_store_bridged_mode(struct device *dev,
2448 struct device_attribute *attr, const char *buf, size_t len)
2449 {
2450 struct net_device *net = to_net_dev(dev);
2451 struct netxen_adapter *adapter = netdev_priv(net);
2452 unsigned long new;
2453 int ret = -EINVAL;
2454
2455 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2456 goto err_out;
2457
2458 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2459 goto err_out;
2460
2461 if (strict_strtoul(buf, 2, &new))
2462 goto err_out;
2463
2464 if (!netxen_config_bridged_mode(adapter, !!new))
2465 ret = len;
2466
2467 err_out:
2468 return ret;
2469 }
2470
2471 static ssize_t
2472 netxen_show_bridged_mode(struct device *dev,
2473 struct device_attribute *attr, char *buf)
2474 {
2475 struct net_device *net = to_net_dev(dev);
2476 struct netxen_adapter *adapter;
2477 int bridged_mode = 0;
2478
2479 adapter = netdev_priv(net);
2480
2481 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2482 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2483
2484 return sprintf(buf, "%d\n", bridged_mode);
2485 }
2486
2487 static struct device_attribute dev_attr_bridged_mode = {
2488 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2489 .show = netxen_show_bridged_mode,
2490 .store = netxen_store_bridged_mode,
2491 };
2492
2493 static ssize_t
2494 netxen_store_diag_mode(struct device *dev,
2495 struct device_attribute *attr, const char *buf, size_t len)
2496 {
2497 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2498 unsigned long new;
2499
2500 if (strict_strtoul(buf, 2, &new))
2501 return -EINVAL;
2502
2503 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2504 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2505
2506 return len;
2507 }
2508
2509 static ssize_t
2510 netxen_show_diag_mode(struct device *dev,
2511 struct device_attribute *attr, char *buf)
2512 {
2513 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2514
2515 return sprintf(buf, "%d\n",
2516 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2517 }
2518
2519 static struct device_attribute dev_attr_diag_mode = {
2520 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2521 .show = netxen_show_diag_mode,
2522 .store = netxen_store_diag_mode,
2523 };
2524
2525 static int
2526 netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2527 loff_t offset, size_t size)
2528 {
2529 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2530 return -EIO;
2531
2532 if ((size != 4) || (offset & 0x3))
2533 return -EINVAL;
2534
2535 if (offset < NETXEN_PCI_CRBSPACE)
2536 return -EINVAL;
2537
2538 return 0;
2539 }
2540
2541 static ssize_t
2542 netxen_sysfs_read_crb(struct kobject *kobj, struct bin_attribute *attr,
2543 char *buf, loff_t offset, size_t size)
2544 {
2545 struct device *dev = container_of(kobj, struct device, kobj);
2546 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2547 u32 data;
2548 int ret;
2549
2550 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2551 if (ret != 0)
2552 return ret;
2553
2554 data = NXRD32(adapter, offset);
2555 memcpy(buf, &data, size);
2556 return size;
2557 }
2558
2559 static ssize_t
2560 netxen_sysfs_write_crb(struct kobject *kobj, struct bin_attribute *attr,
2561 char *buf, loff_t offset, size_t size)
2562 {
2563 struct device *dev = container_of(kobj, struct device, kobj);
2564 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2565 u32 data;
2566 int ret;
2567
2568 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2569 if (ret != 0)
2570 return ret;
2571
2572 memcpy(&data, buf, size);
2573 NXWR32(adapter, offset, data);
2574 return size;
2575 }
2576
2577 static int
2578 netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2579 loff_t offset, size_t size)
2580 {
2581 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2582 return -EIO;
2583
2584 if ((size != 8) || (offset & 0x7))
2585 return -EIO;
2586
2587 return 0;
2588 }
2589
2590 static ssize_t
2591 netxen_sysfs_read_mem(struct kobject *kobj, struct bin_attribute *attr,
2592 char *buf, loff_t offset, size_t size)
2593 {
2594 struct device *dev = container_of(kobj, struct device, kobj);
2595 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2596 u64 data;
2597 int ret;
2598
2599 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2600 if (ret != 0)
2601 return ret;
2602
2603 if (adapter->pci_mem_read(adapter, offset, &data))
2604 return -EIO;
2605
2606 memcpy(buf, &data, size);
2607
2608 return size;
2609 }
2610
2611 static ssize_t netxen_sysfs_write_mem(struct kobject *kobj,
2612 struct bin_attribute *attr, char *buf,
2613 loff_t offset, size_t size)
2614 {
2615 struct device *dev = container_of(kobj, struct device, kobj);
2616 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2617 u64 data;
2618 int ret;
2619
2620 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2621 if (ret != 0)
2622 return ret;
2623
2624 memcpy(&data, buf, size);
2625
2626 if (adapter->pci_mem_write(adapter, offset, data))
2627 return -EIO;
2628
2629 return size;
2630 }
2631
2632
2633 static struct bin_attribute bin_attr_crb = {
2634 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2635 .size = 0,
2636 .read = netxen_sysfs_read_crb,
2637 .write = netxen_sysfs_write_crb,
2638 };
2639
2640 static struct bin_attribute bin_attr_mem = {
2641 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2642 .size = 0,
2643 .read = netxen_sysfs_read_mem,
2644 .write = netxen_sysfs_write_mem,
2645 };
2646
2647
2648 static void
2649 netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2650 {
2651 struct net_device *netdev = adapter->netdev;
2652 struct device *dev = &netdev->dev;
2653
2654 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2655 /* bridged_mode control */
2656 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2657 dev_warn(&netdev->dev,
2658 "failed to create bridged_mode sysfs entry\n");
2659 }
2660 }
2661 }
2662
2663 static void
2664 netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2665 {
2666 struct net_device *netdev = adapter->netdev;
2667 struct device *dev = &netdev->dev;
2668
2669 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2670 device_remove_file(dev, &dev_attr_bridged_mode);
2671 }
2672
2673 static void
2674 netxen_create_diag_entries(struct netxen_adapter *adapter)
2675 {
2676 struct pci_dev *pdev = adapter->pdev;
2677 struct device *dev;
2678
2679 dev = &pdev->dev;
2680 if (device_create_file(dev, &dev_attr_diag_mode))
2681 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2682 if (device_create_bin_file(dev, &bin_attr_crb))
2683 dev_info(dev, "failed to create crb sysfs entry\n");
2684 if (device_create_bin_file(dev, &bin_attr_mem))
2685 dev_info(dev, "failed to create mem sysfs entry\n");
2686 }
2687
2688
2689 static void
2690 netxen_remove_diag_entries(struct netxen_adapter *adapter)
2691 {
2692 struct pci_dev *pdev = adapter->pdev;
2693 struct device *dev = &pdev->dev;
2694
2695 device_remove_file(dev, &dev_attr_diag_mode);
2696 device_remove_bin_file(dev, &bin_attr_crb);
2697 device_remove_bin_file(dev, &bin_attr_mem);
2698 }
2699
2700 #ifdef CONFIG_INET
2701
2702 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2703
2704 static int
2705 netxen_destip_supported(struct netxen_adapter *adapter)
2706 {
2707 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2708 return 0;
2709
2710 if (adapter->ahw.cut_through)
2711 return 0;
2712
2713 return 1;
2714 }
2715
2716 static void
2717 netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2718 {
2719 struct in_device *indev;
2720 struct netxen_adapter *adapter = netdev_priv(dev);
2721
2722 if (!netxen_destip_supported(adapter))
2723 return;
2724
2725 indev = in_dev_get(dev);
2726 if (!indev)
2727 return;
2728
2729 for_ifa(indev) {
2730 switch (event) {
2731 case NETDEV_UP:
2732 netxen_config_ipaddr(adapter,
2733 ifa->ifa_address, NX_IP_UP);
2734 break;
2735 case NETDEV_DOWN:
2736 netxen_config_ipaddr(adapter,
2737 ifa->ifa_address, NX_IP_DOWN);
2738 break;
2739 default:
2740 break;
2741 }
2742 } endfor_ifa(indev);
2743
2744 in_dev_put(indev);
2745 return;
2746 }
2747
2748 static int netxen_netdev_event(struct notifier_block *this,
2749 unsigned long event, void *ptr)
2750 {
2751 struct netxen_adapter *adapter;
2752 struct net_device *dev = (struct net_device *)ptr;
2753
2754 recheck:
2755 if (dev == NULL)
2756 goto done;
2757
2758 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2759 dev = vlan_dev_real_dev(dev);
2760 goto recheck;
2761 }
2762
2763 if (!is_netxen_netdev(dev))
2764 goto done;
2765
2766 adapter = netdev_priv(dev);
2767
2768 if (!adapter)
2769 goto done;
2770
2771 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2772 goto done;
2773
2774 netxen_config_indev_addr(dev, event);
2775 done:
2776 return NOTIFY_DONE;
2777 }
2778
2779 static int
2780 netxen_inetaddr_event(struct notifier_block *this,
2781 unsigned long event, void *ptr)
2782 {
2783 struct netxen_adapter *adapter;
2784 struct net_device *dev;
2785
2786 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2787
2788 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2789
2790 recheck:
2791 if (dev == NULL || !netif_running(dev))
2792 goto done;
2793
2794 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2795 dev = vlan_dev_real_dev(dev);
2796 goto recheck;
2797 }
2798
2799 if (!is_netxen_netdev(dev))
2800 goto done;
2801
2802 adapter = netdev_priv(dev);
2803
2804 if (!adapter || !netxen_destip_supported(adapter))
2805 goto done;
2806
2807 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2808 goto done;
2809
2810 switch (event) {
2811 case NETDEV_UP:
2812 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2813 break;
2814 case NETDEV_DOWN:
2815 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2816 break;
2817 default:
2818 break;
2819 }
2820
2821 done:
2822 return NOTIFY_DONE;
2823 }
2824
2825 static struct notifier_block netxen_netdev_cb = {
2826 .notifier_call = netxen_netdev_event,
2827 };
2828
2829 static struct notifier_block netxen_inetaddr_cb = {
2830 .notifier_call = netxen_inetaddr_event,
2831 };
2832 #else
2833 static void
2834 netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2835 { }
2836 #endif
2837
2838 static struct pci_error_handlers netxen_err_handler = {
2839 .error_detected = netxen_io_error_detected,
2840 .slot_reset = netxen_io_slot_reset,
2841 .resume = netxen_io_resume,
2842 };
2843
2844 static struct pci_driver netxen_driver = {
2845 .name = netxen_nic_driver_name,
2846 .id_table = netxen_pci_tbl,
2847 .probe = netxen_nic_probe,
2848 .remove = __devexit_p(netxen_nic_remove),
2849 #ifdef CONFIG_PM
2850 .suspend = netxen_nic_suspend,
2851 .resume = netxen_nic_resume,
2852 #endif
2853 .shutdown = netxen_nic_shutdown,
2854 .err_handler = &netxen_err_handler
2855 };
2856
2857 static int __init netxen_init_module(void)
2858 {
2859 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2860
2861 #ifdef CONFIG_INET
2862 register_netdevice_notifier(&netxen_netdev_cb);
2863 register_inetaddr_notifier(&netxen_inetaddr_cb);
2864 #endif
2865 return pci_register_driver(&netxen_driver);
2866 }
2867
2868 module_init(netxen_init_module);
2869
2870 static void __exit netxen_exit_module(void)
2871 {
2872 pci_unregister_driver(&netxen_driver);
2873
2874 #ifdef CONFIG_INET
2875 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2876 unregister_netdevice_notifier(&netxen_netdev_cb);
2877 #endif
2878 }
2879
2880 module_exit(netxen_exit_module);
kernel source for telekom puls (alcatel/mediatek)