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GUI: Fix Tomato RAF theme for all builds. Compilation typo.
[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / drivers / net / netxen / netxen_nic_main.c
blob9c364b1ed6387be494dab9c8774e5f6f6894d2a6
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 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
342 if (!(first_boot & 0x4)) {
343 first_boot |= 0x4;
344 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
345 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
346 }
347
348 /* This is the first boot after power up */
349 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
350 if (first_boot != 0x80000f) {
351 /* clear the register for future unloads/loads */
352 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
353 return -EIO;
354 }
355
356 /* Start P2 boot loader */
357 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
358 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
359 timeout = 0;
360 do {
361 msleep(1);
362 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
363
364 if (++timeout > 5000)
365 return -EIO;
366
367 } while (val == NETXEN_BDINFO_MAGIC);
368 }
369 return 0;
370 }
371
372 static void netxen_set_port_mode(struct netxen_adapter *adapter)
373 {
374 u32 val, data;
375
376 val = adapter->ahw.board_type;
377 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
378 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
379 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
380 data = NETXEN_PORT_MODE_802_3_AP;
381 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
382 } else if (port_mode == NETXEN_PORT_MODE_XG) {
383 data = NETXEN_PORT_MODE_XG;
384 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
385 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
386 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
387 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
388 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
389 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
390 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
391 } else {
392 data = NETXEN_PORT_MODE_AUTO_NEG;
393 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
394 }
395
396 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
397 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
398 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
399 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
400 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
401 }
402 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
403 }
404 }
405
406 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
407 {
408 u32 control;
409 int pos;
410
411 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
412 if (pos) {
413 pci_read_config_dword(pdev, pos, &control);
414 if (enable)
415 control |= PCI_MSIX_FLAGS_ENABLE;
416 else
417 control = 0;
418 pci_write_config_dword(pdev, pos, control);
419 }
420 }
421
422 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
423 {
424 int i;
425
426 for (i = 0; i < count; i++)
427 adapter->msix_entries[i].entry = i;
428 }
429
430 static int
431 netxen_read_mac_addr(struct netxen_adapter *adapter)
432 {
433 int i;
434 unsigned char *p;
435 u64 mac_addr;
436 struct net_device *netdev = adapter->netdev;
437 struct pci_dev *pdev = adapter->pdev;
438
439 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
440 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
441 return -EIO;
442 } else {
443 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
444 return -EIO;
445 }
446
447 p = (unsigned char *)&mac_addr;
448 for (i = 0; i < 6; i++)
449 netdev->dev_addr[i] = *(p + 5 - i);
450
451 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
452 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
453
454 /* set station address */
455
456 if (!is_valid_ether_addr(netdev->perm_addr))
457 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
458
459 return 0;
460 }
461
462 int netxen_nic_set_mac(struct net_device *netdev, void *p)
463 {
464 struct netxen_adapter *adapter = netdev_priv(netdev);
465 struct sockaddr *addr = p;
466
467 if (!is_valid_ether_addr(addr->sa_data))
468 return -EINVAL;
469
470 if (netif_running(netdev)) {
471 netif_device_detach(netdev);
472 netxen_napi_disable(adapter);
473 }
474
475 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
476 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
477 adapter->macaddr_set(adapter, addr->sa_data);
478
479 if (netif_running(netdev)) {
480 netif_device_attach(netdev);
481 netxen_napi_enable(adapter);
482 }
483 return 0;
484 }
485
486 static void netxen_set_multicast_list(struct net_device *dev)
487 {
488 struct netxen_adapter *adapter = netdev_priv(dev);
489
490 adapter->set_multi(dev);
491 }
492
493 static const struct net_device_ops netxen_netdev_ops = {
494 .ndo_open = netxen_nic_open,
495 .ndo_stop = netxen_nic_close,
496 .ndo_start_xmit = netxen_nic_xmit_frame,
497 .ndo_get_stats = netxen_nic_get_stats,
498 .ndo_validate_addr = eth_validate_addr,
499 .ndo_set_multicast_list = netxen_set_multicast_list,
500 .ndo_set_mac_address = netxen_nic_set_mac,
501 .ndo_change_mtu = netxen_nic_change_mtu,
502 .ndo_tx_timeout = netxen_tx_timeout,
503 #ifdef CONFIG_NET_POLL_CONTROLLER
504 .ndo_poll_controller = netxen_nic_poll_controller,
505 #endif
506 };
507
508 static void
509 netxen_setup_intr(struct netxen_adapter *adapter)
510 {
511 struct netxen_legacy_intr_set *legacy_intrp;
512 struct pci_dev *pdev = adapter->pdev;
513 int err, num_msix;
514
515 if (adapter->rss_supported) {
516 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
517 MSIX_ENTRIES_PER_ADAPTER : 2;
518 } else
519 num_msix = 1;
520
521 adapter->max_sds_rings = 1;
522
523 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
524
525 if (adapter->ahw.revision_id >= NX_P3_B0)
526 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
527 else
528 legacy_intrp = &legacy_intr[0];
529
530 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
531 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
532 legacy_intrp->tgt_status_reg);
533 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
534 legacy_intrp->tgt_mask_reg);
535 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
536 legacy_intrp->pci_int_reg);
537 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
538
539 if (adapter->ahw.revision_id >= NX_P3_B1)
540 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
541 ISR_INT_STATE_REG);
542 else
543 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
544 CRB_INT_VECTOR);
545
546 netxen_set_msix_bit(pdev, 0);
547
548 if (adapter->msix_supported) {
549
550 netxen_init_msix_entries(adapter, num_msix);
551 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
552 if (err == 0) {
553 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
554 netxen_set_msix_bit(pdev, 1);
555
556 if (adapter->rss_supported)
557 adapter->max_sds_rings = num_msix;
558
559 dev_info(&pdev->dev, "using msi-x interrupts\n");
560 return;
561 }
562
563 if (err > 0)
564 pci_disable_msix(pdev);
565
566 /* fall through for msi */
567 }
568
569 if (use_msi && !pci_enable_msi(pdev)) {
570 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
571 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
572 msi_tgt_status[adapter->ahw.pci_func]);
573 dev_info(&pdev->dev, "using msi interrupts\n");
574 adapter->msix_entries[0].vector = pdev->irq;
575 return;
576 }
577
578 dev_info(&pdev->dev, "using legacy interrupts\n");
579 adapter->msix_entries[0].vector = pdev->irq;
580 }
581
582 static void
583 netxen_teardown_intr(struct netxen_adapter *adapter)
584 {
585 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
586 pci_disable_msix(adapter->pdev);
587 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
588 pci_disable_msi(adapter->pdev);
589 }
590
591 static void
592 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
593 {
594 if (adapter->ahw.db_base != NULL)
595 iounmap(adapter->ahw.db_base);
596 if (adapter->ahw.pci_base0 != NULL)
597 iounmap(adapter->ahw.pci_base0);
598 if (adapter->ahw.pci_base1 != NULL)
599 iounmap(adapter->ahw.pci_base1);
600 if (adapter->ahw.pci_base2 != NULL)
601 iounmap(adapter->ahw.pci_base2);
602 }
603
604 static int
605 netxen_setup_pci_map(struct netxen_adapter *adapter)
606 {
607 void __iomem *db_ptr = NULL;
608
609 resource_size_t mem_base, db_base;
610 unsigned long mem_len, db_len = 0;
611
612 struct pci_dev *pdev = adapter->pdev;
613 int pci_func = adapter->ahw.pci_func;
614 struct netxen_hardware_context *ahw = &adapter->ahw;
615
616 int err = 0;
617
618 /*
619 * Set the CRB window to invalid. If any register in window 0 is
620 * accessed it should set the window to 0 and then reset it to 1.
621 */
622 adapter->ahw.crb_win = -1;
623 adapter->ahw.ocm_win = -1;
624
625 /* remap phys address */
626 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
627 mem_len = pci_resource_len(pdev, 0);
628
629 /* 128 Meg of memory */
630 if (mem_len == NETXEN_PCI_128MB_SIZE) {
631
632 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
633 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
634 SECOND_PAGE_GROUP_SIZE);
635 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
636 THIRD_PAGE_GROUP_SIZE);
637 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
638 ahw->pci_base2 == NULL) {
639 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
640 err = -EIO;
641 goto err_out;
642 }
643
644 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
645
646 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
647
648 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
649 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
650 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
651 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
652 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
653 err = -EIO;
654 goto err_out;
655 }
656
657 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
658
659 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
660 if (ahw->pci_base0 == NULL) {
661 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
662 return -EIO;
663 }
664 ahw->pci_len0 = mem_len;
665 } else {
666 return -EIO;
667 }
668
669 netxen_setup_hwops(adapter);
670
671 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
672
673 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
674 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
675 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
676
677 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
678 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
679 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
680 }
681
682 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
683 goto skip_doorbell;
684
685 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
686 db_len = pci_resource_len(pdev, 4);
687
688 if (db_len == 0) {
689 printk(KERN_ERR "%s: doorbell is disabled\n",
690 netxen_nic_driver_name);
691 err = -EIO;
692 goto err_out;
693 }
694
695 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
696 if (!db_ptr) {
697 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
698 netxen_nic_driver_name);
699 err = -EIO;
700 goto err_out;
701 }
702
703 skip_doorbell:
704 adapter->ahw.db_base = db_ptr;
705 adapter->ahw.db_len = db_len;
706 return 0;
707
708 err_out:
709 netxen_cleanup_pci_map(adapter);
710 return err;
711 }
712
713 static void
714 netxen_check_options(struct netxen_adapter *adapter)
715 {
716 u32 fw_major, fw_minor, fw_build;
717 char brd_name[NETXEN_MAX_SHORT_NAME];
718 char serial_num[32];
719 int i, offset, val;
720 int *ptr32;
721 struct pci_dev *pdev = adapter->pdev;
722
723 adapter->driver_mismatch = 0;
724
725 ptr32 = (int *)&serial_num;
726 offset = NX_FW_SERIAL_NUM_OFFSET;
727 for (i = 0; i < 8; i++) {
728 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
729 dev_err(&pdev->dev, "error reading board info\n");
730 adapter->driver_mismatch = 1;
731 return;
732 }
733 ptr32[i] = cpu_to_le32(val);
734 offset += sizeof(u32);
735 }
736
737 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
738 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
739 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
740
741 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
742
743 if (adapter->portnum == 0) {
744 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
745
746 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
747 module_name(THIS_MODULE),
748 brd_name, serial_num, adapter->ahw.revision_id);
749 }
750
751 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
752 adapter->driver_mismatch = 1;
753 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
754 fw_major, fw_minor, fw_build);
755 return;
756 }
757
758 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
759 i = NXRD32(adapter, NETXEN_SRE_MISC);
760 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
761 }
762
763 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
764 fw_major, fw_minor, fw_build,
765 adapter->ahw.cut_through ? "cut-through" : "legacy");
766
767 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
768 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
769
770 adapter->flags &= ~NETXEN_NIC_LRO_ENABLED;
771
772 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
773 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
774 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
775 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
776 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
777 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
778 }
779
780 adapter->msix_supported = 0;
781 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
782 adapter->msix_supported = !!use_msi_x;
783 adapter->rss_supported = !!use_msi_x;
784 } else {
785 u32 flashed_ver = 0;
786 netxen_rom_fast_read(adapter,
787 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
788 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
789
790 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
791 switch (adapter->ahw.board_type) {
792 case NETXEN_BRDTYPE_P2_SB31_10G:
793 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
794 adapter->msix_supported = !!use_msi_x;
795 adapter->rss_supported = !!use_msi_x;
796 break;
797 default:
798 break;
799 }
800 }
801 }
802
803 adapter->num_txd = MAX_CMD_DESCRIPTORS;
804
805 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
806 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
807 adapter->max_rds_rings = 3;
808 } else {
809 adapter->num_lro_rxd = 0;
810 adapter->max_rds_rings = 2;
811 }
812 }
813
814 static int
815 netxen_start_firmware(struct netxen_adapter *adapter)
816 {
817 int val, err, first_boot;
818 struct pci_dev *pdev = adapter->pdev;
819
820 /* required for NX2031 dummy dma */
821 err = nx_set_dma_mask(adapter);
822 if (err)
823 return err;
824
825 if (!netxen_can_start_firmware(adapter))
826 goto wait_init;
827
828 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
829
830 err = netxen_check_hw_init(adapter, first_boot);
831 if (err) {
832 dev_err(&pdev->dev, "error in init HW init sequence\n");
833 return err;
834 }
835
836 netxen_request_firmware(adapter);
837
838 err = netxen_need_fw_reset(adapter);
839 if (err < 0)
840 goto err_out;
841 if (err == 0)
842 goto wait_init;
843
844 if (first_boot != 0x55555555) {
845 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
846 netxen_pinit_from_rom(adapter);
847 msleep(1);
848 }
849
850 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
851 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
852 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
853
854 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
855 netxen_set_port_mode(adapter);
856
857 err = netxen_load_firmware(adapter);
858 if (err)
859 goto err_out;
860
861 netxen_release_firmware(adapter);
862
863 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
864
865 /* Initialize multicast addr pool owners */
866 val = 0x7654;
867 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
868 val |= 0x0f000000;
869 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
870
871 }
872
873 err = netxen_init_dummy_dma(adapter);
874 if (err)
875 goto err_out;
876
877 /*
878 * Tell the hardware our version number.
879 */
880 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
881 | ((_NETXEN_NIC_LINUX_MINOR << 8))
882 | (_NETXEN_NIC_LINUX_SUBVERSION);
883 NXWR32(adapter, CRB_DRIVER_VERSION, val);
884
885 wait_init:
886 /* Handshake with the card before we register the devices. */
887 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
888 if (err) {
889 netxen_free_dummy_dma(adapter);
890 goto err_out;
891 }
892
893 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
894
895 nx_update_dma_mask(adapter);
896
897 netxen_check_options(adapter);
898
899 adapter->need_fw_reset = 0;
900
901 /* fall through and release firmware */
902
903 err_out:
904 netxen_release_firmware(adapter);
905 return err;
906 }
907
908 static int
909 netxen_nic_request_irq(struct netxen_adapter *adapter)
910 {
911 irq_handler_t handler;
912 struct nx_host_sds_ring *sds_ring;
913 int err, ring;
914
915 unsigned long flags = IRQF_SAMPLE_RANDOM;
916 struct net_device *netdev = adapter->netdev;
917 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
918
919 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
920 handler = netxen_msix_intr;
921 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
922 handler = netxen_msi_intr;
923 else {
924 flags |= IRQF_SHARED;
925 handler = netxen_intr;
926 }
927 adapter->irq = netdev->irq;
928
929 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
930 sds_ring = &recv_ctx->sds_rings[ring];
931 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
932 err = request_irq(sds_ring->irq, handler,
933 flags, sds_ring->name, sds_ring);
934 if (err)
935 return err;
936 }
937
938 return 0;
939 }
940
941 static void
942 netxen_nic_free_irq(struct netxen_adapter *adapter)
943 {
944 int ring;
945 struct nx_host_sds_ring *sds_ring;
946
947 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
948
949 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
950 sds_ring = &recv_ctx->sds_rings[ring];
951 free_irq(sds_ring->irq, sds_ring);
952 }
953 }
954
955 static void
956 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
957 {
958 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
959 adapter->coal.normal.data.rx_time_us =
960 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
961 adapter->coal.normal.data.rx_packets =
962 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
963 adapter->coal.normal.data.tx_time_us =
964 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
965 adapter->coal.normal.data.tx_packets =
966 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
967 }
968
969 /* with rtnl_lock */
970 static int
971 __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
972 {
973 int err;
974
975 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
976 return -EIO;
977
978 err = adapter->init_port(adapter, adapter->physical_port);
979 if (err) {
980 printk(KERN_ERR "%s: Failed to initialize port %d\n",
981 netxen_nic_driver_name, adapter->portnum);
982 return err;
983 }
984 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
985 adapter->macaddr_set(adapter, adapter->mac_addr);
986
987 adapter->set_multi(netdev);
988 adapter->set_mtu(adapter, netdev->mtu);
989
990 adapter->ahw.linkup = 0;
991
992 if (adapter->max_sds_rings > 1)
993 netxen_config_rss(adapter, 1);
994
995 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
996 netxen_config_intr_coalesce(adapter);
997
998 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
999 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
1000
1001 netxen_napi_enable(adapter);
1002
1003 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1004 netxen_linkevent_request(adapter, 1);
1005 else
1006 netxen_nic_set_link_parameters(adapter);
1007
1008 set_bit(__NX_DEV_UP, &adapter->state);
1009 return 0;
1010 }
1011
1012 /* Usage: During resume and firmware recovery module.*/
1013
1014 static inline int
1015 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1016 {
1017 int err = 0;
1018
1019 rtnl_lock();
1020 if (netif_running(netdev))
1021 err = __netxen_nic_up(adapter, netdev);
1022 rtnl_unlock();
1023
1024 return err;
1025 }
1026
1027 /* with rtnl_lock */
1028 static void
1029 __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1030 {
1031 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1032 return;
1033
1034 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1035 return;
1036
1037 smp_mb();
1038 spin_lock(&adapter->tx_clean_lock);
1039 netif_carrier_off(netdev);
1040 netif_tx_disable(netdev);
1041
1042 if (adapter->stop_port)
1043 adapter->stop_port(adapter);
1044
1045 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1046 netxen_p3_free_mac_list(adapter);
1047
1048 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1049
1050 netxen_napi_disable(adapter);
1051
1052 netxen_release_tx_buffers(adapter);
1053 spin_unlock(&adapter->tx_clean_lock);
1054 }
1055
1056 /* Usage: During suspend and firmware recovery module */
1057
1058 static inline void
1059 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1060 {
1061 rtnl_lock();
1062 if (netif_running(netdev))
1063 __netxen_nic_down(adapter, netdev);
1064 rtnl_unlock();
1065
1066 }
1067
1068 static int
1069 netxen_nic_attach(struct netxen_adapter *adapter)
1070 {
1071 struct net_device *netdev = adapter->netdev;
1072 struct pci_dev *pdev = adapter->pdev;
1073 int err, ring;
1074 struct nx_host_rds_ring *rds_ring;
1075 struct nx_host_tx_ring *tx_ring;
1076
1077 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1078 return 0;
1079
1080 err = netxen_init_firmware(adapter);
1081 if (err)
1082 return err;
1083
1084 err = netxen_napi_add(adapter, netdev);
1085 if (err)
1086 return err;
1087
1088 err = netxen_alloc_sw_resources(adapter);
1089 if (err) {
1090 printk(KERN_ERR "%s: Error in setting sw resources\n",
1091 netdev->name);
1092 return err;
1093 }
1094
1095 err = netxen_alloc_hw_resources(adapter);
1096 if (err) {
1097 printk(KERN_ERR "%s: Error in setting hw resources\n",
1098 netdev->name);
1099 goto err_out_free_sw;
1100 }
1101
1102 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1103 tx_ring = adapter->tx_ring;
1104 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1105 crb_cmd_producer[adapter->portnum]);
1106 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1107 crb_cmd_consumer[adapter->portnum]);
1108
1109 tx_ring->producer = 0;
1110 tx_ring->sw_consumer = 0;
1111
1112 netxen_nic_update_cmd_producer(adapter, tx_ring);
1113 netxen_nic_update_cmd_consumer(adapter, tx_ring);
1114 }
1115
1116 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1117 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1118 netxen_post_rx_buffers(adapter, ring, rds_ring);
1119 }
1120
1121 err = netxen_nic_request_irq(adapter);
1122 if (err) {
1123 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1124 netdev->name);
1125 goto err_out_free_rxbuf;
1126 }
1127
1128 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1129 netxen_nic_init_coalesce_defaults(adapter);
1130
1131 netxen_create_sysfs_entries(adapter);
1132
1133 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1134 return 0;
1135
1136 err_out_free_rxbuf:
1137 netxen_release_rx_buffers(adapter);
1138 netxen_free_hw_resources(adapter);
1139 err_out_free_sw:
1140 netxen_free_sw_resources(adapter);
1141 return err;
1142 }
1143
1144 static void
1145 netxen_nic_detach(struct netxen_adapter *adapter)
1146 {
1147 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1148 return;
1149
1150 netxen_remove_sysfs_entries(adapter);
1151
1152 netxen_free_hw_resources(adapter);
1153 netxen_release_rx_buffers(adapter);
1154 netxen_nic_free_irq(adapter);
1155 netxen_napi_del(adapter);
1156 netxen_free_sw_resources(adapter);
1157
1158 adapter->is_up = 0;
1159 }
1160
1161 int
1162 netxen_nic_reset_context(struct netxen_adapter *adapter)
1163 {
1164 int err = 0;
1165 struct net_device *netdev = adapter->netdev;
1166
1167 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1168 return -EBUSY;
1169
1170 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1171
1172 netif_device_detach(netdev);
1173
1174 if (netif_running(netdev))
1175 __netxen_nic_down(adapter, netdev);
1176
1177 netxen_nic_detach(adapter);
1178
1179 if (netif_running(netdev)) {
1180 err = netxen_nic_attach(adapter);
1181 if (!err)
1182 err = __netxen_nic_up(adapter, netdev);
1183
1184 if (err)
1185 goto done;
1186 }
1187
1188 netif_device_attach(netdev);
1189 }
1190
1191 done:
1192 clear_bit(__NX_RESETTING, &adapter->state);
1193 return err;
1194 }
1195
1196 static int
1197 netxen_setup_netdev(struct netxen_adapter *adapter,
1198 struct net_device *netdev)
1199 {
1200 int err = 0;
1201 struct pci_dev *pdev = adapter->pdev;
1202
1203 adapter->rx_csum = 1;
1204 adapter->mc_enabled = 0;
1205 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1206 adapter->max_mc_count = 38;
1207 else
1208 adapter->max_mc_count = 16;
1209
1210 netdev->netdev_ops = &netxen_netdev_ops;
1211 netdev->watchdog_timeo = 2*HZ;
1212
1213 netxen_nic_change_mtu(netdev, netdev->mtu);
1214
1215 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1216
1217 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1218 netdev->features |= (NETIF_F_GRO);
1219 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1220
1221 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1222 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1223 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1224 }
1225
1226 if (adapter->pci_using_dac) {
1227 netdev->features |= NETIF_F_HIGHDMA;
1228 netdev->vlan_features |= NETIF_F_HIGHDMA;
1229 }
1230
1231 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1232 netdev->features |= (NETIF_F_HW_VLAN_TX);
1233
1234 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1235 netdev->features |= NETIF_F_LRO;
1236
1237 netdev->irq = adapter->msix_entries[0].vector;
1238
1239 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1240
1241 if (netxen_read_mac_addr(adapter))
1242 dev_warn(&pdev->dev, "failed to read mac addr\n");
1243
1244 netif_carrier_off(netdev);
1245 netif_stop_queue(netdev);
1246
1247 err = register_netdev(netdev);
1248 if (err) {
1249 dev_err(&pdev->dev, "failed to register net device\n");
1250 return err;
1251 }
1252
1253 return 0;
1254 }
1255
1256 static int __devinit
1257 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1258 {
1259 struct net_device *netdev = NULL;
1260 struct netxen_adapter *adapter = NULL;
1261 int i = 0, err;
1262 int pci_func_id = PCI_FUNC(pdev->devfn);
1263 uint8_t revision_id;
1264
1265 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1266 pr_warning("%s: chip revisions between 0x%x-0x%x "
1267 "will not be enabled.\n",
1268 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
1269 return -ENODEV;
1270 }
1271
1272 if ((err = pci_enable_device(pdev)))
1273 return err;
1274
1275 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1276 err = -ENODEV;
1277 goto err_out_disable_pdev;
1278 }
1279
1280 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1281 goto err_out_disable_pdev;
1282
1283 if (NX_IS_REVISION_P3(pdev->revision))
1284 pci_enable_pcie_error_reporting(pdev);
1285
1286 pci_set_master(pdev);
1287
1288 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1289 if(!netdev) {
1290 dev_err(&pdev->dev, "failed to allocate net_device\n");
1291 err = -ENOMEM;
1292 goto err_out_free_res;
1293 }
1294
1295 SET_NETDEV_DEV(netdev, &pdev->dev);
1296
1297 adapter = netdev_priv(netdev);
1298 adapter->netdev = netdev;
1299 adapter->pdev = pdev;
1300 adapter->ahw.pci_func = pci_func_id;
1301
1302 revision_id = pdev->revision;
1303 adapter->ahw.revision_id = revision_id;
1304
1305 rwlock_init(&adapter->ahw.crb_lock);
1306 spin_lock_init(&adapter->ahw.mem_lock);
1307
1308 spin_lock_init(&adapter->tx_clean_lock);
1309 INIT_LIST_HEAD(&adapter->mac_list);
1310
1311 err = netxen_setup_pci_map(adapter);
1312 if (err)
1313 goto err_out_free_netdev;
1314
1315 /* This will be reset for mezz cards */
1316 adapter->portnum = pci_func_id;
1317
1318 err = netxen_nic_get_board_info(adapter);
1319 if (err) {
1320 dev_err(&pdev->dev, "Error getting board config info.\n");
1321 goto err_out_iounmap;
1322 }
1323
1324 /* Mezz cards have PCI function 0,2,3 enabled */
1325 switch (adapter->ahw.board_type) {
1326 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1327 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1328 if (pci_func_id >= 2)
1329 adapter->portnum = pci_func_id - 2;
1330 break;
1331 default:
1332 break;
1333 }
1334
1335 err = netxen_start_firmware(adapter);
1336 if (err)
1337 goto err_out_decr_ref;
1338
1339 /*
1340 * See if the firmware gave us a virtual-physical port mapping.
1341 */
1342 adapter->physical_port = adapter->portnum;
1343 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1344 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1345 if (i != 0x55555555)
1346 adapter->physical_port = i;
1347 }
1348
1349 netxen_nic_clear_stats(adapter);
1350
1351 netxen_setup_intr(adapter);
1352
1353 err = netxen_setup_netdev(adapter, netdev);
1354 if (err)
1355 goto err_out_disable_msi;
1356
1357 pci_set_drvdata(pdev, adapter);
1358
1359 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1360
1361 switch (adapter->ahw.port_type) {
1362 case NETXEN_NIC_GBE:
1363 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1364 adapter->netdev->name);
1365 break;
1366 case NETXEN_NIC_XGBE:
1367 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1368 adapter->netdev->name);
1369 break;
1370 }
1371
1372 netxen_create_diag_entries(adapter);
1373
1374 return 0;
1375
1376 err_out_disable_msi:
1377 netxen_teardown_intr(adapter);
1378
1379 netxen_free_dummy_dma(adapter);
1380
1381 err_out_decr_ref:
1382 nx_decr_dev_ref_cnt(adapter);
1383
1384 err_out_iounmap:
1385 netxen_cleanup_pci_map(adapter);
1386
1387 err_out_free_netdev:
1388 free_netdev(netdev);
1389
1390 err_out_free_res:
1391 pci_release_regions(pdev);
1392
1393 err_out_disable_pdev:
1394 pci_set_drvdata(pdev, NULL);
1395 pci_disable_device(pdev);
1396 return err;
1397 }
1398
1399 static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1400 {
1401 struct netxen_adapter *adapter;
1402 struct net_device *netdev;
1403
1404 adapter = pci_get_drvdata(pdev);
1405 if (adapter == NULL)
1406 return;
1407
1408 netdev = adapter->netdev;
1409
1410 netxen_cancel_fw_work(adapter);
1411
1412 unregister_netdev(netdev);
1413
1414 cancel_work_sync(&adapter->tx_timeout_task);
1415
1416 netxen_nic_detach(adapter);
1417
1418 nx_decr_dev_ref_cnt(adapter);
1419
1420 if (adapter->portnum == 0)
1421 netxen_free_dummy_dma(adapter);
1422
1423 clear_bit(__NX_RESETTING, &adapter->state);
1424
1425 netxen_teardown_intr(adapter);
1426
1427 netxen_remove_diag_entries(adapter);
1428
1429 netxen_cleanup_pci_map(adapter);
1430
1431 netxen_release_firmware(adapter);
1432
1433 if (NX_IS_REVISION_P3(pdev->revision))
1434 pci_disable_pcie_error_reporting(pdev);
1435
1436 pci_release_regions(pdev);
1437 pci_disable_device(pdev);
1438 pci_set_drvdata(pdev, NULL);
1439
1440 free_netdev(netdev);
1441 }
1442
1443 static void netxen_nic_detach_func(struct netxen_adapter *adapter)
1444 {
1445 struct net_device *netdev = adapter->netdev;
1446
1447 netif_device_detach(netdev);
1448
1449 netxen_cancel_fw_work(adapter);
1450
1451 if (netif_running(netdev))
1452 netxen_nic_down(adapter, netdev);
1453
1454 cancel_work_sync(&adapter->tx_timeout_task);
1455
1456 netxen_nic_detach(adapter);
1457
1458 if (adapter->portnum == 0)
1459 netxen_free_dummy_dma(adapter);
1460
1461 nx_decr_dev_ref_cnt(adapter);
1462
1463 clear_bit(__NX_RESETTING, &adapter->state);
1464 }
1465
1466 static int netxen_nic_attach_func(struct pci_dev *pdev)
1467 {
1468 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1469 struct net_device *netdev = adapter->netdev;
1470 int err;
1471
1472 err = pci_enable_device(pdev);
1473 if (err)
1474 return err;
1475
1476 pci_set_power_state(pdev, PCI_D0);
1477 pci_set_master(pdev);
1478 pci_restore_state(pdev);
1479
1480 adapter->ahw.crb_win = -1;
1481 adapter->ahw.ocm_win = -1;
1482
1483 err = netxen_start_firmware(adapter);
1484 if (err) {
1485 dev_err(&pdev->dev, "failed to start firmware\n");
1486 return err;
1487 }
1488
1489 if (netif_running(netdev)) {
1490 err = netxen_nic_attach(adapter);
1491 if (err)
1492 goto err_out;
1493
1494 err = netxen_nic_up(adapter, netdev);
1495 if (err)
1496 goto err_out_detach;
1497
1498 netxen_config_indev_addr(netdev, NETDEV_UP);
1499 }
1500
1501 netif_device_attach(netdev);
1502 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1503 return 0;
1504
1505 err_out_detach:
1506 netxen_nic_detach(adapter);
1507 err_out:
1508 nx_decr_dev_ref_cnt(adapter);
1509 return err;
1510 }
1511
1512 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1513 pci_channel_state_t state)
1514 {
1515 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1516
1517 if (state == pci_channel_io_perm_failure)
1518 return PCI_ERS_RESULT_DISCONNECT;
1519
1520 if (nx_dev_request_aer(adapter))
1521 return PCI_ERS_RESULT_RECOVERED;
1522
1523 netxen_nic_detach_func(adapter);
1524
1525 pci_disable_device(pdev);
1526
1527 return PCI_ERS_RESULT_NEED_RESET;
1528 }
1529
1530 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1531 {
1532 int err = 0;
1533
1534 err = netxen_nic_attach_func(pdev);
1535
1536 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1537 }
1538
1539 static void netxen_io_resume(struct pci_dev *pdev)
1540 {
1541 pci_cleanup_aer_uncorrect_error_status(pdev);
1542 }
1543
1544 static void netxen_nic_shutdown(struct pci_dev *pdev)
1545 {
1546 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1547
1548 netxen_nic_detach_func(adapter);
1549
1550 if (pci_save_state(pdev))
1551 return;
1552
1553 if (netxen_nic_wol_supported(adapter)) {
1554 pci_enable_wake(pdev, PCI_D3cold, 1);
1555 pci_enable_wake(pdev, PCI_D3hot, 1);
1556 }
1557
1558 pci_disable_device(pdev);
1559 }
1560
1561 #ifdef CONFIG_PM
1562 static int
1563 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1564 {
1565 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1566 int retval;
1567
1568 netxen_nic_detach_func(adapter);
1569
1570 retval = pci_save_state(pdev);
1571 if (retval)
1572 return retval;
1573
1574 if (netxen_nic_wol_supported(adapter)) {
1575 pci_enable_wake(pdev, PCI_D3cold, 1);
1576 pci_enable_wake(pdev, PCI_D3hot, 1);
1577 }
1578
1579 pci_disable_device(pdev);
1580 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1581
1582 return 0;
1583 }
1584
1585 static int
1586 netxen_nic_resume(struct pci_dev *pdev)
1587 {
1588 return netxen_nic_attach_func(pdev);
1589 }
1590 #endif
1591
1592 static int netxen_nic_open(struct net_device *netdev)
1593 {
1594 struct netxen_adapter *adapter = netdev_priv(netdev);
1595 int err = 0;
1596
1597 if (adapter->driver_mismatch)
1598 return -EIO;
1599
1600 err = netxen_nic_attach(adapter);
1601 if (err)
1602 return err;
1603
1604 err = __netxen_nic_up(adapter, netdev);
1605 if (err)
1606 goto err_out;
1607
1608 netif_start_queue(netdev);
1609
1610 return 0;
1611
1612 err_out:
1613 netxen_nic_detach(adapter);
1614 return err;
1615 }
1616
1617 /*
1618 * netxen_nic_close - Disables a network interface entry point
1619 */
1620 static int netxen_nic_close(struct net_device *netdev)
1621 {
1622 struct netxen_adapter *adapter = netdev_priv(netdev);
1623
1624 __netxen_nic_down(adapter, netdev);
1625 return 0;
1626 }
1627
1628 static void
1629 netxen_tso_check(struct net_device *netdev,
1630 struct nx_host_tx_ring *tx_ring,
1631 struct cmd_desc_type0 *first_desc,
1632 struct sk_buff *skb)
1633 {
1634 u8 opcode = TX_ETHER_PKT;
1635 __be16 protocol = skb->protocol;
1636 u16 flags = 0, vid = 0;
1637 u32 producer;
1638 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1639 struct cmd_desc_type0 *hwdesc;
1640 struct vlan_ethhdr *vh;
1641
1642 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1643
1644 vh = (struct vlan_ethhdr *)skb->data;
1645 protocol = vh->h_vlan_encapsulated_proto;
1646 flags = FLAGS_VLAN_TAGGED;
1647
1648 } else if (vlan_tx_tag_present(skb)) {
1649
1650 flags = FLAGS_VLAN_OOB;
1651 vid = vlan_tx_tag_get(skb);
1652 netxen_set_tx_vlan_tci(first_desc, vid);
1653 vlan_oob = 1;
1654 }
1655
1656 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1657 skb_shinfo(skb)->gso_size > 0) {
1658
1659 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1660
1661 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1662 first_desc->total_hdr_length = hdr_len;
1663 if (vlan_oob) {
1664 first_desc->total_hdr_length += VLAN_HLEN;
1665 first_desc->tcp_hdr_offset = VLAN_HLEN;
1666 first_desc->ip_hdr_offset = VLAN_HLEN;
1667 /* Only in case of TSO on vlan device */
1668 flags |= FLAGS_VLAN_TAGGED;
1669 }
1670
1671 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1672 TX_TCP_LSO6 : TX_TCP_LSO;
1673 tso = 1;
1674
1675 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1676 u8 l4proto;
1677
1678 if (protocol == cpu_to_be16(ETH_P_IP)) {
1679 l4proto = ip_hdr(skb)->protocol;
1680
1681 if (l4proto == IPPROTO_TCP)
1682 opcode = TX_TCP_PKT;
1683 else if(l4proto == IPPROTO_UDP)
1684 opcode = TX_UDP_PKT;
1685 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1686 l4proto = ipv6_hdr(skb)->nexthdr;
1687
1688 if (l4proto == IPPROTO_TCP)
1689 opcode = TX_TCPV6_PKT;
1690 else if(l4proto == IPPROTO_UDP)
1691 opcode = TX_UDPV6_PKT;
1692 }
1693 }
1694
1695 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1696 first_desc->ip_hdr_offset += skb_network_offset(skb);
1697 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1698
1699 if (!tso)
1700 return;
1701
1702 /* For LSO, we need to copy the MAC/IP/TCP headers into
1703 * the descriptor ring
1704 */
1705 producer = tx_ring->producer;
1706 copied = 0;
1707 offset = 2;
1708
1709 if (vlan_oob) {
1710 /* Create a TSO vlan header template for firmware */
1711
1712 hwdesc = &tx_ring->desc_head[producer];
1713 tx_ring->cmd_buf_arr[producer].skb = NULL;
1714
1715 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1716 hdr_len + VLAN_HLEN);
1717
1718 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1719 skb_copy_from_linear_data(skb, vh, 12);
1720 vh->h_vlan_proto = htons(ETH_P_8021Q);
1721 vh->h_vlan_TCI = htons(vid);
1722 skb_copy_from_linear_data_offset(skb, 12,
1723 (char *)vh + 16, copy_len - 16);
1724
1725 copied = copy_len - VLAN_HLEN;
1726 offset = 0;
1727
1728 producer = get_next_index(producer, tx_ring->num_desc);
1729 }
1730
1731 while (copied < hdr_len) {
1732
1733 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1734 (hdr_len - copied));
1735
1736 hwdesc = &tx_ring->desc_head[producer];
1737 tx_ring->cmd_buf_arr[producer].skb = NULL;
1738
1739 skb_copy_from_linear_data_offset(skb, copied,
1740 (char *)hwdesc + offset, copy_len);
1741
1742 copied += copy_len;
1743 offset = 0;
1744
1745 producer = get_next_index(producer, tx_ring->num_desc);
1746 }
1747
1748 tx_ring->producer = producer;
1749 barrier();
1750 }
1751
1752 static int
1753 netxen_map_tx_skb(struct pci_dev *pdev,
1754 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1755 {
1756 struct netxen_skb_frag *nf;
1757 struct skb_frag_struct *frag;
1758 int i, nr_frags;
1759 dma_addr_t map;
1760
1761 nr_frags = skb_shinfo(skb)->nr_frags;
1762 nf = &pbuf->frag_array[0];
1763
1764 map = pci_map_single(pdev, skb->data,
1765 skb_headlen(skb), PCI_DMA_TODEVICE);
1766 if (pci_dma_mapping_error(pdev, map))
1767 goto out_err;
1768
1769 nf->dma = map;
1770 nf->length = skb_headlen(skb);
1771
1772 for (i = 0; i < nr_frags; i++) {
1773 frag = &skb_shinfo(skb)->frags[i];
1774 nf = &pbuf->frag_array[i+1];
1775
1776 map = pci_map_page(pdev, frag->page, frag->page_offset,
1777 frag->size, PCI_DMA_TODEVICE);
1778 if (pci_dma_mapping_error(pdev, map))
1779 goto unwind;
1780
1781 nf->dma = map;
1782 nf->length = frag->size;
1783 }
1784
1785 return 0;
1786
1787 unwind:
1788 while (--i >= 0) {
1789 nf = &pbuf->frag_array[i+1];
1790 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1791 }
1792
1793 nf = &pbuf->frag_array[0];
1794 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1795
1796 out_err:
1797 return -ENOMEM;
1798 }
1799
1800 static inline void
1801 netxen_clear_cmddesc(u64 *desc)
1802 {
1803 desc[0] = 0ULL;
1804 desc[2] = 0ULL;
1805 }
1806
1807 static netdev_tx_t
1808 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1809 {
1810 struct netxen_adapter *adapter = netdev_priv(netdev);
1811 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1812 struct netxen_cmd_buffer *pbuf;
1813 struct netxen_skb_frag *buffrag;
1814 struct cmd_desc_type0 *hwdesc, *first_desc;
1815 struct pci_dev *pdev;
1816 int i, k;
1817
1818 u32 producer;
1819 int frag_count, no_of_desc;
1820 u32 num_txd = tx_ring->num_desc;
1821
1822 frag_count = skb_shinfo(skb)->nr_frags + 1;
1823
1824 /* 4 fragments per cmd des */
1825 no_of_desc = (frag_count + 3) >> 2;
1826
1827 if (unlikely(no_of_desc + 2 > netxen_tx_avail(tx_ring))) {
1828 netif_stop_queue(netdev);
1829 return NETDEV_TX_BUSY;
1830 }
1831
1832 producer = tx_ring->producer;
1833 pbuf = &tx_ring->cmd_buf_arr[producer];
1834
1835 pdev = adapter->pdev;
1836
1837 if (netxen_map_tx_skb(pdev, skb, pbuf))
1838 goto drop_packet;
1839
1840 pbuf->skb = skb;
1841 pbuf->frag_count = frag_count;
1842
1843 first_desc = hwdesc = &tx_ring->desc_head[producer];
1844 netxen_clear_cmddesc((u64 *)hwdesc);
1845
1846 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1847 netxen_set_tx_port(first_desc, adapter->portnum);
1848
1849 for (i = 0; i < frag_count; i++) {
1850
1851 k = i % 4;
1852
1853 if ((k == 0) && (i > 0)) {
1854 /* move to next desc.*/
1855 producer = get_next_index(producer, num_txd);
1856 hwdesc = &tx_ring->desc_head[producer];
1857 netxen_clear_cmddesc((u64 *)hwdesc);
1858 tx_ring->cmd_buf_arr[producer].skb = NULL;
1859 }
1860
1861 buffrag = &pbuf->frag_array[i];
1862
1863 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
1864 switch (k) {
1865 case 0:
1866 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1867 break;
1868 case 1:
1869 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
1870 break;
1871 case 2:
1872 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
1873 break;
1874 case 3:
1875 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
1876 break;
1877 }
1878 }
1879
1880 tx_ring->producer = get_next_index(producer, num_txd);
1881
1882 netxen_tso_check(netdev, tx_ring, first_desc, skb);
1883
1884 netxen_nic_update_cmd_producer(adapter, tx_ring);
1885
1886 adapter->stats.txbytes += skb->len;
1887 adapter->stats.xmitcalled++;
1888
1889 return NETDEV_TX_OK;
1890
1891 drop_packet:
1892 adapter->stats.txdropped++;
1893 dev_kfree_skb_any(skb);
1894 return NETDEV_TX_OK;
1895 }
1896
1897 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1898 {
1899 struct net_device *netdev = adapter->netdev;
1900 uint32_t temp, temp_state, temp_val;
1901 int rv = 0;
1902
1903 temp = NXRD32(adapter, CRB_TEMP_STATE);
1904
1905 temp_state = nx_get_temp_state(temp);
1906 temp_val = nx_get_temp_val(temp);
1907
1908 if (temp_state == NX_TEMP_PANIC) {
1909 printk(KERN_ALERT
1910 "%s: Device temperature %d degrees C exceeds"
1911 " maximum allowed. Hardware has been shut down.\n",
1912 netdev->name, temp_val);
1913 rv = 1;
1914 } else if (temp_state == NX_TEMP_WARN) {
1915 if (adapter->temp == NX_TEMP_NORMAL) {
1916 printk(KERN_ALERT
1917 "%s: Device temperature %d degrees C "
1918 "exceeds operating range."
1919 " Immediate action needed.\n",
1920 netdev->name, temp_val);
1921 }
1922 } else {
1923 if (adapter->temp == NX_TEMP_WARN) {
1924 printk(KERN_INFO
1925 "%s: Device temperature is now %d degrees C"
1926 " in normal range.\n", netdev->name,
1927 temp_val);
1928 }
1929 }
1930 adapter->temp = temp_state;
1931 return rv;
1932 }
1933
1934 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
1935 {
1936 struct net_device *netdev = adapter->netdev;
1937
1938 if (adapter->ahw.linkup && !linkup) {
1939 printk(KERN_INFO "%s: %s NIC Link is down\n",
1940 netxen_nic_driver_name, netdev->name);
1941 adapter->ahw.linkup = 0;
1942 if (netif_running(netdev)) {
1943 netif_carrier_off(netdev);
1944 netif_stop_queue(netdev);
1945 }
1946 adapter->link_changed = !adapter->has_link_events;
1947 } else if (!adapter->ahw.linkup && linkup) {
1948 printk(KERN_INFO "%s: %s NIC Link is up\n",
1949 netxen_nic_driver_name, netdev->name);
1950 adapter->ahw.linkup = 1;
1951 if (netif_running(netdev)) {
1952 netif_carrier_on(netdev);
1953 netif_wake_queue(netdev);
1954 }
1955 adapter->link_changed = !adapter->has_link_events;
1956 }
1957 }
1958
1959 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1960 {
1961 u32 val, port, linkup;
1962
1963 port = adapter->physical_port;
1964
1965 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1966 val = NXRD32(adapter, CRB_XG_STATE_P3);
1967 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1968 linkup = (val == XG_LINK_UP_P3);
1969 } else {
1970 val = NXRD32(adapter, CRB_XG_STATE);
1971 val = (val >> port*8) & 0xff;
1972 linkup = (val == XG_LINK_UP);
1973 }
1974
1975 netxen_advert_link_change(adapter, linkup);
1976 }
1977
1978 static void netxen_tx_timeout(struct net_device *netdev)
1979 {
1980 struct netxen_adapter *adapter = netdev_priv(netdev);
1981
1982 if (test_bit(__NX_RESETTING, &adapter->state))
1983 return;
1984
1985 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
1986 schedule_work(&adapter->tx_timeout_task);
1987 }
1988
1989 static void netxen_tx_timeout_task(struct work_struct *work)
1990 {
1991 struct netxen_adapter *adapter =
1992 container_of(work, struct netxen_adapter, tx_timeout_task);
1993
1994 if (!netif_running(adapter->netdev))
1995 return;
1996
1997 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1998 return;
1999
2000 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2001 goto request_reset;
2002
2003 rtnl_lock();
2004 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2005 /* try to scrub interrupt */
2006 netxen_napi_disable(adapter);
2007
2008 netxen_napi_enable(adapter);
2009
2010 netif_wake_queue(adapter->netdev);
2011
2012 clear_bit(__NX_RESETTING, &adapter->state);
2013 } else {
2014 clear_bit(__NX_RESETTING, &adapter->state);
2015 if (netxen_nic_reset_context(adapter)) {
2016 rtnl_unlock();
2017 goto request_reset;
2018 }
2019 }
2020 adapter->netdev->trans_start = jiffies;
2021 rtnl_unlock();
2022 return;
2023
2024 request_reset:
2025 adapter->need_fw_reset = 1;
2026 clear_bit(__NX_RESETTING, &adapter->state);
2027 }
2028
2029 struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
2030 {
2031 struct netxen_adapter *adapter = netdev_priv(netdev);
2032 struct net_device_stats *stats = &netdev->stats;
2033
2034 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2035 stats->tx_packets = adapter->stats.xmitfinished;
2036 stats->rx_bytes = adapter->stats.rxbytes;
2037 stats->tx_bytes = adapter->stats.txbytes;
2038 stats->rx_dropped = adapter->stats.rxdropped;
2039 stats->tx_dropped = adapter->stats.txdropped;
2040
2041 return stats;
2042 }
2043
2044 static irqreturn_t netxen_intr(int irq, void *data)
2045 {
2046 struct nx_host_sds_ring *sds_ring = data;
2047 struct netxen_adapter *adapter = sds_ring->adapter;
2048 u32 status = 0;
2049
2050 status = readl(adapter->isr_int_vec);
2051
2052 if (!(status & adapter->int_vec_bit))
2053 return IRQ_NONE;
2054
2055 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2056 /* check interrupt state machine, to be sure */
2057 status = readl(adapter->crb_int_state_reg);
2058 if (!ISR_LEGACY_INT_TRIGGERED(status))
2059 return IRQ_NONE;
2060
2061 } else {
2062 unsigned long our_int = 0;
2063
2064 our_int = readl(adapter->crb_int_state_reg);
2065
2066 /* not our interrupt */
2067 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2068 return IRQ_NONE;
2069
2070 /* claim interrupt */
2071 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2072
2073 /* clear interrupt */
2074 netxen_nic_disable_int(sds_ring);
2075 }
2076
2077 writel(0xffffffff, adapter->tgt_status_reg);
2078 /* read twice to ensure write is flushed */
2079 readl(adapter->isr_int_vec);
2080 readl(adapter->isr_int_vec);
2081
2082 napi_schedule(&sds_ring->napi);
2083
2084 return IRQ_HANDLED;
2085 }
2086
2087 static irqreturn_t netxen_msi_intr(int irq, void *data)
2088 {
2089 struct nx_host_sds_ring *sds_ring = data;
2090 struct netxen_adapter *adapter = sds_ring->adapter;
2091
2092 /* clear interrupt */
2093 writel(0xffffffff, adapter->tgt_status_reg);
2094
2095 napi_schedule(&sds_ring->napi);
2096 return IRQ_HANDLED;
2097 }
2098
2099 static irqreturn_t netxen_msix_intr(int irq, void *data)
2100 {
2101 struct nx_host_sds_ring *sds_ring = data;
2102
2103 napi_schedule(&sds_ring->napi);
2104 return IRQ_HANDLED;
2105 }
2106
2107 static int netxen_nic_poll(struct napi_struct *napi, int budget)
2108 {
2109 struct nx_host_sds_ring *sds_ring =
2110 container_of(napi, struct nx_host_sds_ring, napi);
2111
2112 struct netxen_adapter *adapter = sds_ring->adapter;
2113
2114 int tx_complete;
2115 int work_done;
2116
2117 tx_complete = netxen_process_cmd_ring(adapter);
2118
2119 work_done = netxen_process_rcv_ring(sds_ring, budget);
2120
2121 if ((work_done < budget) && tx_complete) {
2122 napi_complete(&sds_ring->napi);
2123 if (test_bit(__NX_DEV_UP, &adapter->state))
2124 netxen_nic_enable_int(sds_ring);
2125 }
2126
2127 return work_done;
2128 }
2129
2130 #ifdef CONFIG_NET_POLL_CONTROLLER
2131 static void netxen_nic_poll_controller(struct net_device *netdev)
2132 {
2133 int ring;
2134 struct nx_host_sds_ring *sds_ring;
2135 struct netxen_adapter *adapter = netdev_priv(netdev);
2136 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2137
2138 disable_irq(adapter->irq);
2139 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2140 sds_ring = &recv_ctx->sds_rings[ring];
2141 netxen_intr(adapter->irq, sds_ring);
2142 }
2143 enable_irq(adapter->irq);
2144 }
2145 #endif
2146
2147 static int
2148 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2149 {
2150 int count;
2151 if (netxen_api_lock(adapter))
2152 return -EIO;
2153
2154 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2155
2156 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2157
2158 netxen_api_unlock(adapter);
2159 return count;
2160 }
2161
2162 static int
2163 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2164 {
2165 int count;
2166 if (netxen_api_lock(adapter))
2167 return -EIO;
2168
2169 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2170 WARN_ON(count == 0);
2171
2172 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2173
2174 if (count == 0)
2175 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2176
2177 netxen_api_unlock(adapter);
2178 return count;
2179 }
2180
2181 static int
2182 nx_dev_request_aer(struct netxen_adapter *adapter)
2183 {
2184 u32 state;
2185 int ret = -EINVAL;
2186
2187 if (netxen_api_lock(adapter))
2188 return ret;
2189
2190 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2191
2192 if (state == NX_DEV_NEED_AER)
2193 ret = 0;
2194 else if (state == NX_DEV_READY) {
2195 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2196 ret = 0;
2197 }
2198
2199 netxen_api_unlock(adapter);
2200 return ret;
2201 }
2202
2203 static int
2204 nx_dev_request_reset(struct netxen_adapter *adapter)
2205 {
2206 u32 state;
2207 int ret = -EINVAL;
2208
2209 if (netxen_api_lock(adapter))
2210 return ret;
2211
2212 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2213
2214 if (state == NX_DEV_NEED_RESET)
2215 ret = 0;
2216 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
2217 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2218 ret = 0;
2219 }
2220
2221 netxen_api_unlock(adapter);
2222
2223 return ret;
2224 }
2225
2226 static int
2227 netxen_can_start_firmware(struct netxen_adapter *adapter)
2228 {
2229 int count;
2230 int can_start = 0;
2231
2232 if (netxen_api_lock(adapter))
2233 return 0;
2234
2235 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2236
2237 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2238 count = 0;
2239
2240 if (count == 0) {
2241 can_start = 1;
2242 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2243 }
2244
2245 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2246
2247 netxen_api_unlock(adapter);
2248
2249 return can_start;
2250 }
2251
2252 static void
2253 netxen_schedule_work(struct netxen_adapter *adapter,
2254 work_func_t func, int delay)
2255 {
2256 INIT_DELAYED_WORK(&adapter->fw_work, func);
2257 schedule_delayed_work(&adapter->fw_work, delay);
2258 }
2259
2260 static void
2261 netxen_cancel_fw_work(struct netxen_adapter *adapter)
2262 {
2263 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2264 msleep(10);
2265
2266 cancel_delayed_work_sync(&adapter->fw_work);
2267 }
2268
2269 static void
2270 netxen_attach_work(struct work_struct *work)
2271 {
2272 struct netxen_adapter *adapter = container_of(work,
2273 struct netxen_adapter, fw_work.work);
2274 struct net_device *netdev = adapter->netdev;
2275 int err = 0;
2276
2277 if (netif_running(netdev)) {
2278 err = netxen_nic_attach(adapter);
2279 if (err)
2280 goto done;
2281
2282 err = netxen_nic_up(adapter, netdev);
2283 if (err) {
2284 netxen_nic_detach(adapter);
2285 goto done;
2286 }
2287
2288 netxen_config_indev_addr(netdev, NETDEV_UP);
2289 }
2290
2291 netif_device_attach(netdev);
2292
2293 done:
2294 adapter->fw_fail_cnt = 0;
2295 clear_bit(__NX_RESETTING, &adapter->state);
2296 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2297 }
2298
2299 static void
2300 netxen_fwinit_work(struct work_struct *work)
2301 {
2302 struct netxen_adapter *adapter = container_of(work,
2303 struct netxen_adapter, fw_work.work);
2304 int dev_state;
2305
2306 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2307
2308 switch (dev_state) {
2309 case NX_DEV_COLD:
2310 case NX_DEV_READY:
2311 if (!netxen_start_firmware(adapter)) {
2312 netxen_schedule_work(adapter, netxen_attach_work, 0);
2313 return;
2314 }
2315 break;
2316
2317 case NX_DEV_NEED_RESET:
2318 case NX_DEV_INITALIZING:
2319 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2320 netxen_schedule_work(adapter,
2321 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2322 return;
2323 }
2324
2325 case NX_DEV_FAILED:
2326 default:
2327 nx_incr_dev_ref_cnt(adapter);
2328 break;
2329 }
2330
2331 clear_bit(__NX_RESETTING, &adapter->state);
2332 }
2333
2334 static void
2335 netxen_detach_work(struct work_struct *work)
2336 {
2337 struct netxen_adapter *adapter = container_of(work,
2338 struct netxen_adapter, fw_work.work);
2339 struct net_device *netdev = adapter->netdev;
2340 int ref_cnt, delay;
2341 u32 status;
2342
2343 netif_device_detach(netdev);
2344
2345 netxen_nic_down(adapter, netdev);
2346
2347 rtnl_lock();
2348 netxen_nic_detach(adapter);
2349 rtnl_unlock();
2350
2351 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2352
2353 if (status & NX_RCODE_FATAL_ERROR)
2354 goto err_ret;
2355
2356 if (adapter->temp == NX_TEMP_PANIC)
2357 goto err_ret;
2358
2359 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2360
2361 if (ref_cnt == -EIO)
2362 goto err_ret;
2363
2364 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2365
2366 adapter->fw_wait_cnt = 0;
2367 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2368
2369 return;
2370
2371 err_ret:
2372 clear_bit(__NX_RESETTING, &adapter->state);
2373 }
2374
2375 static int
2376 netxen_check_health(struct netxen_adapter *adapter)
2377 {
2378 u32 state, heartbit;
2379 struct net_device *netdev = adapter->netdev;
2380
2381 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2382 if (state == NX_DEV_NEED_AER)
2383 return 0;
2384
2385 if (netxen_nic_check_temp(adapter))
2386 goto detach;
2387
2388 if (adapter->need_fw_reset) {
2389 if (nx_dev_request_reset(adapter))
2390 return 0;
2391 goto detach;
2392 }
2393
2394 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2395 * 1. Tx timeout 2. Fw hang
2396 * Send request to destroy context in case of tx timeout only
2397 * and doesn't required in case of Fw hang
2398 */
2399 if (state == NX_DEV_NEED_RESET) {
2400 adapter->need_fw_reset = 1;
2401 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2402 goto detach;
2403 }
2404
2405 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2406 return 0;
2407
2408 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2409 if (heartbit != adapter->heartbit) {
2410 adapter->heartbit = heartbit;
2411 adapter->fw_fail_cnt = 0;
2412 if (adapter->need_fw_reset)
2413 goto detach;
2414 return 0;
2415 }
2416
2417 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2418 return 0;
2419
2420 if (nx_dev_request_reset(adapter))
2421 return 0;
2422
2423 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2424
2425 dev_info(&netdev->dev, "firmware hang detected\n");
2426
2427 detach:
2428 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2429 !test_and_set_bit(__NX_RESETTING, &adapter->state))
2430 netxen_schedule_work(adapter, netxen_detach_work, 0);
2431 return 1;
2432 }
2433
2434 static void
2435 netxen_fw_poll_work(struct work_struct *work)
2436 {
2437 struct netxen_adapter *adapter = container_of(work,
2438 struct netxen_adapter, fw_work.work);
2439
2440 if (test_bit(__NX_RESETTING, &adapter->state))
2441 goto reschedule;
2442
2443 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2444 if (!adapter->has_link_events) {
2445
2446 netxen_nic_handle_phy_intr(adapter);
2447
2448 if (adapter->link_changed)
2449 netxen_nic_set_link_parameters(adapter);
2450 }
2451 }
2452
2453 if (netxen_check_health(adapter))
2454 return;
2455
2456 reschedule:
2457 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2458 }
2459
2460 static ssize_t
2461 netxen_store_bridged_mode(struct device *dev,
2462 struct device_attribute *attr, const char *buf, size_t len)
2463 {
2464 struct net_device *net = to_net_dev(dev);
2465 struct netxen_adapter *adapter = netdev_priv(net);
2466 unsigned long new;
2467 int ret = -EINVAL;
2468
2469 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2470 goto err_out;
2471
2472 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2473 goto err_out;
2474
2475 if (strict_strtoul(buf, 2, &new))
2476 goto err_out;
2477
2478 if (!netxen_config_bridged_mode(adapter, !!new))
2479 ret = len;
2480
2481 err_out:
2482 return ret;
2483 }
2484
2485 static ssize_t
2486 netxen_show_bridged_mode(struct device *dev,
2487 struct device_attribute *attr, char *buf)
2488 {
2489 struct net_device *net = to_net_dev(dev);
2490 struct netxen_adapter *adapter;
2491 int bridged_mode = 0;
2492
2493 adapter = netdev_priv(net);
2494
2495 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2496 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2497
2498 return sprintf(buf, "%d\n", bridged_mode);
2499 }
2500
2501 static struct device_attribute dev_attr_bridged_mode = {
2502 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2503 .show = netxen_show_bridged_mode,
2504 .store = netxen_store_bridged_mode,
2505 };
2506
2507 static ssize_t
2508 netxen_store_diag_mode(struct device *dev,
2509 struct device_attribute *attr, const char *buf, size_t len)
2510 {
2511 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2512 unsigned long new;
2513
2514 if (strict_strtoul(buf, 2, &new))
2515 return -EINVAL;
2516
2517 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2518 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2519
2520 return len;
2521 }
2522
2523 static ssize_t
2524 netxen_show_diag_mode(struct device *dev,
2525 struct device_attribute *attr, char *buf)
2526 {
2527 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2528
2529 return sprintf(buf, "%d\n",
2530 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2531 }
2532
2533 static struct device_attribute dev_attr_diag_mode = {
2534 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2535 .show = netxen_show_diag_mode,
2536 .store = netxen_store_diag_mode,
2537 };
2538
2539 static int
2540 netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2541 loff_t offset, size_t size)
2542 {
2543 size_t crb_size = 4;
2544
2545 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2546 return -EIO;
2547
2548 if (offset < NETXEN_PCI_CRBSPACE) {
2549 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2550 return -EINVAL;
2551
2552 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2553 NETXEN_PCI_CAMQM_2M_END))
2554 crb_size = 8;
2555 else
2556 return -EINVAL;
2557 }
2558
2559 if ((size != crb_size) || (offset & (crb_size-1)))
2560 return -EINVAL;
2561
2562 return 0;
2563 }
2564
2565 static ssize_t
2566 netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2567 struct bin_attribute *attr,
2568 char *buf, loff_t offset, size_t size)
2569 {
2570 struct device *dev = container_of(kobj, struct device, kobj);
2571 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2572 u32 data;
2573 u64 qmdata;
2574 int ret;
2575
2576 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2577 if (ret != 0)
2578 return ret;
2579
2580 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2581 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2582 NETXEN_PCI_CAMQM_2M_END)) {
2583 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2584 memcpy(buf, &qmdata, size);
2585 } else {
2586 data = NXRD32(adapter, offset);
2587 memcpy(buf, &data, size);
2588 }
2589
2590 return size;
2591 }
2592
2593 static ssize_t
2594 netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2595 struct bin_attribute *attr,
2596 char *buf, loff_t offset, size_t size)
2597 {
2598 struct device *dev = container_of(kobj, struct device, kobj);
2599 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2600 u32 data;
2601 u64 qmdata;
2602 int ret;
2603
2604 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2605 if (ret != 0)
2606 return ret;
2607
2608 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2609 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2610 NETXEN_PCI_CAMQM_2M_END)) {
2611 memcpy(&qmdata, buf, size);
2612 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2613 } else {
2614 memcpy(&data, buf, size);
2615 NXWR32(adapter, offset, data);
2616 }
2617
2618 return size;
2619 }
2620
2621 static int
2622 netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2623 loff_t offset, size_t size)
2624 {
2625 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2626 return -EIO;
2627
2628 if ((size != 8) || (offset & 0x7))
2629 return -EIO;
2630
2631 return 0;
2632 }
2633
2634 static ssize_t
2635 netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2636 struct bin_attribute *attr,
2637 char *buf, loff_t offset, size_t size)
2638 {
2639 struct device *dev = container_of(kobj, struct device, kobj);
2640 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2641 u64 data;
2642 int ret;
2643
2644 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2645 if (ret != 0)
2646 return ret;
2647
2648 if (adapter->pci_mem_read(adapter, offset, &data))
2649 return -EIO;
2650
2651 memcpy(buf, &data, size);
2652
2653 return size;
2654 }
2655
2656 static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
2657 struct bin_attribute *attr, char *buf,
2658 loff_t offset, size_t size)
2659 {
2660 struct device *dev = container_of(kobj, struct device, kobj);
2661 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2662 u64 data;
2663 int ret;
2664
2665 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2666 if (ret != 0)
2667 return ret;
2668
2669 memcpy(&data, buf, size);
2670
2671 if (adapter->pci_mem_write(adapter, offset, data))
2672 return -EIO;
2673
2674 return size;
2675 }
2676
2677
2678 static struct bin_attribute bin_attr_crb = {
2679 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2680 .size = 0,
2681 .read = netxen_sysfs_read_crb,
2682 .write = netxen_sysfs_write_crb,
2683 };
2684
2685 static struct bin_attribute bin_attr_mem = {
2686 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2687 .size = 0,
2688 .read = netxen_sysfs_read_mem,
2689 .write = netxen_sysfs_write_mem,
2690 };
2691
2692
2693 static void
2694 netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2695 {
2696 struct net_device *netdev = adapter->netdev;
2697 struct device *dev = &netdev->dev;
2698
2699 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2700 /* bridged_mode control */
2701 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2702 dev_warn(&netdev->dev,
2703 "failed to create bridged_mode sysfs entry\n");
2704 }
2705 }
2706 }
2707
2708 static void
2709 netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2710 {
2711 struct net_device *netdev = adapter->netdev;
2712 struct device *dev = &netdev->dev;
2713
2714 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2715 device_remove_file(dev, &dev_attr_bridged_mode);
2716 }
2717
2718 static void
2719 netxen_create_diag_entries(struct netxen_adapter *adapter)
2720 {
2721 struct pci_dev *pdev = adapter->pdev;
2722 struct device *dev;
2723
2724 dev = &pdev->dev;
2725 if (device_create_file(dev, &dev_attr_diag_mode))
2726 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2727 if (device_create_bin_file(dev, &bin_attr_crb))
2728 dev_info(dev, "failed to create crb sysfs entry\n");
2729 if (device_create_bin_file(dev, &bin_attr_mem))
2730 dev_info(dev, "failed to create mem sysfs entry\n");
2731 }
2732
2733
2734 static void
2735 netxen_remove_diag_entries(struct netxen_adapter *adapter)
2736 {
2737 struct pci_dev *pdev = adapter->pdev;
2738 struct device *dev = &pdev->dev;
2739
2740 device_remove_file(dev, &dev_attr_diag_mode);
2741 device_remove_bin_file(dev, &bin_attr_crb);
2742 device_remove_bin_file(dev, &bin_attr_mem);
2743 }
2744
2745 #ifdef CONFIG_INET
2746
2747 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2748
2749 static int
2750 netxen_destip_supported(struct netxen_adapter *adapter)
2751 {
2752 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2753 return 0;
2754
2755 if (adapter->ahw.cut_through)
2756 return 0;
2757
2758 return 1;
2759 }
2760
2761 static void
2762 netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2763 {
2764 struct in_device *indev;
2765 struct netxen_adapter *adapter = netdev_priv(dev);
2766
2767 if (!netxen_destip_supported(adapter))
2768 return;
2769
2770 indev = in_dev_get(dev);
2771 if (!indev)
2772 return;
2773
2774 for_ifa(indev) {
2775 switch (event) {
2776 case NETDEV_UP:
2777 netxen_config_ipaddr(adapter,
2778 ifa->ifa_address, NX_IP_UP);
2779 break;
2780 case NETDEV_DOWN:
2781 netxen_config_ipaddr(adapter,
2782 ifa->ifa_address, NX_IP_DOWN);
2783 break;
2784 default:
2785 break;
2786 }
2787 } endfor_ifa(indev);
2788
2789 in_dev_put(indev);
2790 }
2791
2792 static int netxen_netdev_event(struct notifier_block *this,
2793 unsigned long event, void *ptr)
2794 {
2795 struct netxen_adapter *adapter;
2796 struct net_device *dev = (struct net_device *)ptr;
2797
2798 recheck:
2799 if (dev == NULL)
2800 goto done;
2801
2802 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2803 dev = vlan_dev_real_dev(dev);
2804 goto recheck;
2805 }
2806
2807 if (!is_netxen_netdev(dev))
2808 goto done;
2809
2810 adapter = netdev_priv(dev);
2811
2812 if (!adapter)
2813 goto done;
2814
2815 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2816 goto done;
2817
2818 netxen_config_indev_addr(dev, event);
2819 done:
2820 return NOTIFY_DONE;
2821 }
2822
2823 static int
2824 netxen_inetaddr_event(struct notifier_block *this,
2825 unsigned long event, void *ptr)
2826 {
2827 struct netxen_adapter *adapter;
2828 struct net_device *dev;
2829
2830 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2831
2832 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2833
2834 recheck:
2835 if (dev == NULL || !netif_running(dev))
2836 goto done;
2837
2838 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2839 dev = vlan_dev_real_dev(dev);
2840 goto recheck;
2841 }
2842
2843 if (!is_netxen_netdev(dev))
2844 goto done;
2845
2846 adapter = netdev_priv(dev);
2847
2848 if (!adapter || !netxen_destip_supported(adapter))
2849 goto done;
2850
2851 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2852 goto done;
2853
2854 switch (event) {
2855 case NETDEV_UP:
2856 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2857 break;
2858 case NETDEV_DOWN:
2859 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2860 break;
2861 default:
2862 break;
2863 }
2864
2865 done:
2866 return NOTIFY_DONE;
2867 }
2868
2869 static struct notifier_block netxen_netdev_cb = {
2870 .notifier_call = netxen_netdev_event,
2871 };
2872
2873 static struct notifier_block netxen_inetaddr_cb = {
2874 .notifier_call = netxen_inetaddr_event,
2875 };
2876 #else
2877 static void
2878 netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2879 { }
2880 #endif
2881
2882 static struct pci_error_handlers netxen_err_handler = {
2883 .error_detected = netxen_io_error_detected,
2884 .slot_reset = netxen_io_slot_reset,
2885 .resume = netxen_io_resume,
2886 };
2887
2888 static struct pci_driver netxen_driver = {
2889 .name = netxen_nic_driver_name,
2890 .id_table = netxen_pci_tbl,
2891 .probe = netxen_nic_probe,
2892 .remove = __devexit_p(netxen_nic_remove),
2893 #ifdef CONFIG_PM
2894 .suspend = netxen_nic_suspend,
2895 .resume = netxen_nic_resume,
2896 #endif
2897 .shutdown = netxen_nic_shutdown,
2898 .err_handler = &netxen_err_handler
2899 };
2900
2901 static int __init netxen_init_module(void)
2902 {
2903 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2904
2905 #ifdef CONFIG_INET
2906 register_netdevice_notifier(&netxen_netdev_cb);
2907 register_inetaddr_notifier(&netxen_inetaddr_cb);
2908 #endif
2909 return pci_register_driver(&netxen_driver);
2910 }
2911
2912 module_init(netxen_init_module);
2913
2914 static void __exit netxen_exit_module(void)
2915 {
2916 pci_unregister_driver(&netxen_driver);
2917
2918 #ifdef CONFIG_INET
2919 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2920 unregister_netdevice_notifier(&netxen_netdev_cb);
2921 #endif
2922 }
2923
2924 module_exit(netxen_exit_module);
Tomato firmware and modifications.