projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge tag 'batman-adv-for-davem' of git://git.open-mesh.org/linux-merge
[deliverable/linux.git] / drivers / net / ethernet / qlogic / 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 Intelligent Ethernet Driver");
42 MODULE_LICENSE("GPL");
43 MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
44 MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
45
46 char netxen_nic_driver_name[] = "netxen_nic";
47 static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
48 NETXEN_NIC_LINUX_VERSIONID;
49
50 static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
51
52 /* Default to restricted 1G auto-neg mode */
53 static int wol_port_mode = 5;
54
55 static int use_msi = 1;
56
57 static int use_msi_x = 1;
58
59 static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
60 module_param(auto_fw_reset, int, 0644);
61 MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
62
63 static int netxen_nic_probe(struct pci_dev *pdev,
64 const struct pci_device_id *ent);
65 static void netxen_nic_remove(struct pci_dev *pdev);
66 static int netxen_nic_open(struct net_device *netdev);
67 static int netxen_nic_close(struct net_device *netdev);
68 static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
69 struct net_device *);
70 static void netxen_tx_timeout(struct net_device *netdev);
71 static void netxen_tx_timeout_task(struct work_struct *work);
72 static void netxen_fw_poll_work(struct work_struct *work);
73 static void netxen_schedule_work(struct netxen_adapter *adapter,
74 work_func_t func, int delay);
75 static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
76 static int netxen_nic_poll(struct napi_struct *napi, int budget);
77 #ifdef CONFIG_NET_POLL_CONTROLLER
78 static void netxen_nic_poll_controller(struct net_device *netdev);
79 #endif
80
81 static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
82 static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
83 static void netxen_create_diag_entries(struct netxen_adapter *adapter);
84 static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
85 static int nx_dev_request_aer(struct netxen_adapter *adapter);
86 static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
87 static int netxen_can_start_firmware(struct netxen_adapter *adapter);
88
89 static irqreturn_t netxen_intr(int irq, void *data);
90 static irqreturn_t netxen_msi_intr(int irq, void *data);
91 static irqreturn_t netxen_msix_intr(int irq, void *data);
92
93 static void netxen_free_ip_list(struct netxen_adapter *, bool);
94 static void netxen_restore_indev_addr(struct net_device *dev, unsigned long);
95 static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *dev,
96 struct rtnl_link_stats64 *stats);
97 static int netxen_nic_set_mac(struct net_device *netdev, void *p);
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
130 static uint32_t crb_cmd_consumer[4] = {
131 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
132 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
133 };
134
135 static inline void
136 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
137 struct nx_host_tx_ring *tx_ring)
138 {
139 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
140 }
141
142 static uint32_t msi_tgt_status[8] = {
143 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
144 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
145 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
146 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
147 };
148
149 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
150
151 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
152 {
153 struct netxen_adapter *adapter = sds_ring->adapter;
154
155 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
156 }
157
158 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
159 {
160 struct netxen_adapter *adapter = sds_ring->adapter;
161
162 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
163
164 if (!NETXEN_IS_MSI_FAMILY(adapter))
165 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
166 }
167
168 static int
169 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
170 {
171 int size = sizeof(struct nx_host_sds_ring) * count;
172
173 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
174
175 return recv_ctx->sds_rings == NULL;
176 }
177
178 static void
179 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
180 {
181 if (recv_ctx->sds_rings != NULL)
182 kfree(recv_ctx->sds_rings);
183
184 recv_ctx->sds_rings = NULL;
185 }
186
187 static int
188 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
189 {
190 int ring;
191 struct nx_host_sds_ring *sds_ring;
192 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
193
194 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
195 return -ENOMEM;
196
197 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
198 sds_ring = &recv_ctx->sds_rings[ring];
199 netif_napi_add(netdev, &sds_ring->napi,
200 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
201 }
202
203 return 0;
204 }
205
206 static void
207 netxen_napi_del(struct netxen_adapter *adapter)
208 {
209 int ring;
210 struct nx_host_sds_ring *sds_ring;
211 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
212
213 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
214 sds_ring = &recv_ctx->sds_rings[ring];
215 netif_napi_del(&sds_ring->napi);
216 }
217
218 netxen_free_sds_rings(&adapter->recv_ctx);
219 }
220
221 static void
222 netxen_napi_enable(struct netxen_adapter *adapter)
223 {
224 int ring;
225 struct nx_host_sds_ring *sds_ring;
226 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
227
228 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
229 sds_ring = &recv_ctx->sds_rings[ring];
230 napi_enable(&sds_ring->napi);
231 netxen_nic_enable_int(sds_ring);
232 }
233 }
234
235 static void
236 netxen_napi_disable(struct netxen_adapter *adapter)
237 {
238 int ring;
239 struct nx_host_sds_ring *sds_ring;
240 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
241
242 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
243 sds_ring = &recv_ctx->sds_rings[ring];
244 netxen_nic_disable_int(sds_ring);
245 napi_synchronize(&sds_ring->napi);
246 napi_disable(&sds_ring->napi);
247 }
248 }
249
250 static int nx_set_dma_mask(struct netxen_adapter *adapter)
251 {
252 struct pci_dev *pdev = adapter->pdev;
253 uint64_t mask, cmask;
254
255 adapter->pci_using_dac = 0;
256
257 mask = DMA_BIT_MASK(32);
258 cmask = DMA_BIT_MASK(32);
259
260 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
261 #ifndef CONFIG_IA64
262 mask = DMA_BIT_MASK(35);
263 #endif
264 } else {
265 mask = DMA_BIT_MASK(39);
266 cmask = mask;
267 }
268
269 if (pci_set_dma_mask(pdev, mask) == 0 &&
270 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
271 adapter->pci_using_dac = 1;
272 return 0;
273 }
274
275 return -EIO;
276 }
277
278 /* Update addressable range if firmware supports it */
279 static int
280 nx_update_dma_mask(struct netxen_adapter *adapter)
281 {
282 int change, shift, err;
283 uint64_t mask, old_mask, old_cmask;
284 struct pci_dev *pdev = adapter->pdev;
285
286 change = 0;
287
288 shift = NXRD32(adapter, CRB_DMA_SHIFT);
289 if (shift > 32)
290 return 0;
291
292 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
293 change = 1;
294 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
295 change = 1;
296
297 if (change) {
298 old_mask = pdev->dma_mask;
299 old_cmask = pdev->dev.coherent_dma_mask;
300
301 mask = DMA_BIT_MASK(32+shift);
302
303 err = pci_set_dma_mask(pdev, mask);
304 if (err)
305 goto err_out;
306
307 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
308
309 err = pci_set_consistent_dma_mask(pdev, mask);
310 if (err)
311 goto err_out;
312 }
313 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
314 }
315
316 return 0;
317
318 err_out:
319 pci_set_dma_mask(pdev, old_mask);
320 pci_set_consistent_dma_mask(pdev, old_cmask);
321 return err;
322 }
323
324 static int
325 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
326 {
327 u32 val, timeout;
328
329 if (first_boot == 0x55555555) {
330 /* This is the first boot after power up */
331 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
332
333 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
334 return 0;
335
336 /* PCI bus master workaround */
337 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
338 if (!(first_boot & 0x4)) {
339 first_boot |= 0x4;
340 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
341 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
342 }
343
344 /* This is the first boot after power up */
345 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
346 if (first_boot != 0x80000f) {
347 /* clear the register for future unloads/loads */
348 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
349 return -EIO;
350 }
351
352 /* Start P2 boot loader */
353 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
354 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
355 timeout = 0;
356 do {
357 msleep(1);
358 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
359
360 if (++timeout > 5000)
361 return -EIO;
362
363 } while (val == NETXEN_BDINFO_MAGIC);
364 }
365 return 0;
366 }
367
368 static void netxen_set_port_mode(struct netxen_adapter *adapter)
369 {
370 u32 val, data;
371
372 val = adapter->ahw.board_type;
373 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
374 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
375 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
376 data = NETXEN_PORT_MODE_802_3_AP;
377 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
378 } else if (port_mode == NETXEN_PORT_MODE_XG) {
379 data = NETXEN_PORT_MODE_XG;
380 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
381 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
382 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
383 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
384 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
385 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
386 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
387 } else {
388 data = NETXEN_PORT_MODE_AUTO_NEG;
389 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
390 }
391
392 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
393 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
394 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
395 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
396 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
397 }
398 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
399 }
400 }
401
402 #define PCI_CAP_ID_GEN 0x10
403
404 static void netxen_pcie_strap_init(struct netxen_adapter *adapter)
405 {
406 u32 pdevfuncsave;
407 u32 c8c9value = 0;
408 u32 chicken = 0;
409 u32 control = 0;
410 int i, pos;
411 struct pci_dev *pdev;
412
413 pdev = adapter->pdev;
414
415 chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3));
416 /* clear chicken3.25:24 */
417 chicken &= 0xFCFFFFFF;
418 /*
419 * if gen1 and B0, set F1020 - if gen 2, do nothing
420 * if gen2 set to F1000
421 */
422 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN);
423 if (pos == 0xC0) {
424 pci_read_config_dword(pdev, pos + 0x10, &control);
425 if ((control & 0x000F0000) != 0x00020000) {
426 /* set chicken3.24 if gen1 */
427 chicken |= 0x01000000;
428 }
429 dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n");
430 c8c9value = 0xF1000;
431 } else {
432 /* set chicken3.24 if gen1 */
433 chicken |= 0x01000000;
434 dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n");
435 if (adapter->ahw.revision_id == NX_P3_B0)
436 c8c9value = 0xF1020;
437 else
438 c8c9value = 0;
439 }
440
441 NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken);
442
443 if (!c8c9value)
444 return;
445
446 pdevfuncsave = pdev->devfn;
447 if (pdevfuncsave & 0x07)
448 return;
449
450 for (i = 0; i < 8; i++) {
451 pci_read_config_dword(pdev, pos + 8, &control);
452 pci_read_config_dword(pdev, pos + 8, &control);
453 pci_write_config_dword(pdev, pos + 8, c8c9value);
454 pdev->devfn++;
455 }
456 pdev->devfn = pdevfuncsave;
457 }
458
459 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
460 {
461 u32 control;
462 int pos;
463
464 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
465 if (pos) {
466 pci_read_config_dword(pdev, pos, &control);
467 if (enable)
468 control |= PCI_MSIX_FLAGS_ENABLE;
469 else
470 control = 0;
471 pci_write_config_dword(pdev, pos, control);
472 }
473 }
474
475 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
476 {
477 int i;
478
479 for (i = 0; i < count; i++)
480 adapter->msix_entries[i].entry = i;
481 }
482
483 static int
484 netxen_read_mac_addr(struct netxen_adapter *adapter)
485 {
486 int i;
487 unsigned char *p;
488 u64 mac_addr;
489 struct net_device *netdev = adapter->netdev;
490 struct pci_dev *pdev = adapter->pdev;
491
492 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
493 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
494 return -EIO;
495 } else {
496 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
497 return -EIO;
498 }
499
500 p = (unsigned char *)&mac_addr;
501 for (i = 0; i < 6; i++)
502 netdev->dev_addr[i] = *(p + 5 - i);
503
504 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
505
506 /* set station address */
507
508 if (!is_valid_ether_addr(netdev->dev_addr))
509 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
510
511 return 0;
512 }
513
514 static int netxen_nic_set_mac(struct net_device *netdev, void *p)
515 {
516 struct netxen_adapter *adapter = netdev_priv(netdev);
517 struct sockaddr *addr = p;
518
519 if (!is_valid_ether_addr(addr->sa_data))
520 return -EADDRNOTAVAIL;
521
522 if (netif_running(netdev)) {
523 netif_device_detach(netdev);
524 netxen_napi_disable(adapter);
525 }
526
527 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
528 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
529 adapter->macaddr_set(adapter, addr->sa_data);
530
531 if (netif_running(netdev)) {
532 netif_device_attach(netdev);
533 netxen_napi_enable(adapter);
534 }
535 return 0;
536 }
537
538 static void netxen_set_multicast_list(struct net_device *dev)
539 {
540 struct netxen_adapter *adapter = netdev_priv(dev);
541
542 adapter->set_multi(dev);
543 }
544
545 static netdev_features_t netxen_fix_features(struct net_device *dev,
546 netdev_features_t features)
547 {
548 if (!(features & NETIF_F_RXCSUM)) {
549 netdev_info(dev, "disabling LRO as RXCSUM is off\n");
550
551 features &= ~NETIF_F_LRO;
552 }
553
554 return features;
555 }
556
557 static int netxen_set_features(struct net_device *dev,
558 netdev_features_t features)
559 {
560 struct netxen_adapter *adapter = netdev_priv(dev);
561 int hw_lro;
562
563 if (!((dev->features ^ features) & NETIF_F_LRO))
564 return 0;
565
566 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED
567 : NETXEN_NIC_LRO_DISABLED;
568
569 if (netxen_config_hw_lro(adapter, hw_lro))
570 return -EIO;
571
572 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter))
573 return -EIO;
574
575 return 0;
576 }
577
578 static const struct net_device_ops netxen_netdev_ops = {
579 .ndo_open = netxen_nic_open,
580 .ndo_stop = netxen_nic_close,
581 .ndo_start_xmit = netxen_nic_xmit_frame,
582 .ndo_get_stats64 = netxen_nic_get_stats,
583 .ndo_validate_addr = eth_validate_addr,
584 .ndo_set_rx_mode = netxen_set_multicast_list,
585 .ndo_set_mac_address = netxen_nic_set_mac,
586 .ndo_change_mtu = netxen_nic_change_mtu,
587 .ndo_tx_timeout = netxen_tx_timeout,
588 .ndo_fix_features = netxen_fix_features,
589 .ndo_set_features = netxen_set_features,
590 #ifdef CONFIG_NET_POLL_CONTROLLER
591 .ndo_poll_controller = netxen_nic_poll_controller,
592 #endif
593 };
594
595 static void
596 netxen_setup_intr(struct netxen_adapter *adapter)
597 {
598 struct netxen_legacy_intr_set *legacy_intrp;
599 struct pci_dev *pdev = adapter->pdev;
600 int err, num_msix;
601
602 if (adapter->rss_supported) {
603 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
604 MSIX_ENTRIES_PER_ADAPTER : 2;
605 } else
606 num_msix = 1;
607
608 adapter->max_sds_rings = 1;
609
610 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
611
612 if (adapter->ahw.revision_id >= NX_P3_B0)
613 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
614 else
615 legacy_intrp = &legacy_intr[0];
616
617 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
618 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
619 legacy_intrp->tgt_status_reg);
620 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
621 legacy_intrp->tgt_mask_reg);
622 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
623 legacy_intrp->pci_int_reg);
624 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
625
626 if (adapter->ahw.revision_id >= NX_P3_B1)
627 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
628 ISR_INT_STATE_REG);
629 else
630 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
631 CRB_INT_VECTOR);
632
633 netxen_set_msix_bit(pdev, 0);
634
635 if (adapter->msix_supported) {
636
637 netxen_init_msix_entries(adapter, num_msix);
638 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
639 if (err == 0) {
640 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
641 netxen_set_msix_bit(pdev, 1);
642
643 if (adapter->rss_supported)
644 adapter->max_sds_rings = num_msix;
645
646 dev_info(&pdev->dev, "using msi-x interrupts\n");
647 return;
648 }
649
650 if (err > 0)
651 pci_disable_msix(pdev);
652
653 /* fall through for msi */
654 }
655
656 if (use_msi && !pci_enable_msi(pdev)) {
657 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
658 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
659 msi_tgt_status[adapter->ahw.pci_func]);
660 dev_info(&pdev->dev, "using msi interrupts\n");
661 adapter->msix_entries[0].vector = pdev->irq;
662 return;
663 }
664
665 dev_info(&pdev->dev, "using legacy interrupts\n");
666 adapter->msix_entries[0].vector = pdev->irq;
667 }
668
669 static void
670 netxen_teardown_intr(struct netxen_adapter *adapter)
671 {
672 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
673 pci_disable_msix(adapter->pdev);
674 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
675 pci_disable_msi(adapter->pdev);
676 }
677
678 static void
679 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
680 {
681 if (adapter->ahw.db_base != NULL)
682 iounmap(adapter->ahw.db_base);
683 if (adapter->ahw.pci_base0 != NULL)
684 iounmap(adapter->ahw.pci_base0);
685 if (adapter->ahw.pci_base1 != NULL)
686 iounmap(adapter->ahw.pci_base1);
687 if (adapter->ahw.pci_base2 != NULL)
688 iounmap(adapter->ahw.pci_base2);
689 }
690
691 static int
692 netxen_setup_pci_map(struct netxen_adapter *adapter)
693 {
694 void __iomem *db_ptr = NULL;
695
696 resource_size_t mem_base, db_base;
697 unsigned long mem_len, db_len = 0;
698
699 struct pci_dev *pdev = adapter->pdev;
700 int pci_func = adapter->ahw.pci_func;
701 struct netxen_hardware_context *ahw = &adapter->ahw;
702
703 int err = 0;
704
705 /*
706 * Set the CRB window to invalid. If any register in window 0 is
707 * accessed it should set the window to 0 and then reset it to 1.
708 */
709 adapter->ahw.crb_win = -1;
710 adapter->ahw.ocm_win = -1;
711
712 /* remap phys address */
713 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
714 mem_len = pci_resource_len(pdev, 0);
715
716 /* 128 Meg of memory */
717 if (mem_len == NETXEN_PCI_128MB_SIZE) {
718
719 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
720 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
721 SECOND_PAGE_GROUP_SIZE);
722 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
723 THIRD_PAGE_GROUP_SIZE);
724 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
725 ahw->pci_base2 == NULL) {
726 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
727 err = -EIO;
728 goto err_out;
729 }
730
731 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
732
733 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
734
735 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
736 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
737 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
738 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
739 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
740 err = -EIO;
741 goto err_out;
742 }
743
744 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
745
746 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
747 if (ahw->pci_base0 == NULL) {
748 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
749 return -EIO;
750 }
751 ahw->pci_len0 = mem_len;
752 } else {
753 return -EIO;
754 }
755
756 netxen_setup_hwops(adapter);
757
758 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
759
760 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
761 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
762 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
763
764 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
765 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
766 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
767 }
768
769 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
770 goto skip_doorbell;
771
772 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
773 db_len = pci_resource_len(pdev, 4);
774
775 if (db_len == 0) {
776 printk(KERN_ERR "%s: doorbell is disabled\n",
777 netxen_nic_driver_name);
778 err = -EIO;
779 goto err_out;
780 }
781
782 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
783 if (!db_ptr) {
784 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
785 netxen_nic_driver_name);
786 err = -EIO;
787 goto err_out;
788 }
789
790 skip_doorbell:
791 adapter->ahw.db_base = db_ptr;
792 adapter->ahw.db_len = db_len;
793 return 0;
794
795 err_out:
796 netxen_cleanup_pci_map(adapter);
797 return err;
798 }
799
800 static void
801 netxen_check_options(struct netxen_adapter *adapter)
802 {
803 u32 fw_major, fw_minor, fw_build, prev_fw_version;
804 char brd_name[NETXEN_MAX_SHORT_NAME];
805 char serial_num[32];
806 int i, offset, val, err;
807 __le32 *ptr32;
808 struct pci_dev *pdev = adapter->pdev;
809
810 adapter->driver_mismatch = 0;
811
812 ptr32 = (__le32 *)&serial_num;
813 offset = NX_FW_SERIAL_NUM_OFFSET;
814 for (i = 0; i < 8; i++) {
815 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
816 dev_err(&pdev->dev, "error reading board info\n");
817 adapter->driver_mismatch = 1;
818 return;
819 }
820 ptr32[i] = cpu_to_le32(val);
821 offset += sizeof(u32);
822 }
823
824 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
825 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
826 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
827 prev_fw_version = adapter->fw_version;
828 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
829
830 /* Get FW Mini Coredump template and store it */
831 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
832 if (adapter->mdump.md_template == NULL ||
833 adapter->fw_version > prev_fw_version) {
834 kfree(adapter->mdump.md_template);
835 adapter->mdump.md_template = NULL;
836 err = netxen_setup_minidump(adapter);
837 if (err)
838 dev_err(&adapter->pdev->dev,
839 "Failed to setup minidump rcode = %d\n", err);
840 }
841 }
842
843 if (adapter->portnum == 0) {
844 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
845
846 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
847 module_name(THIS_MODULE),
848 brd_name, serial_num, adapter->ahw.revision_id);
849 }
850
851 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
852 adapter->driver_mismatch = 1;
853 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
854 fw_major, fw_minor, fw_build);
855 return;
856 }
857
858 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
859 i = NXRD32(adapter, NETXEN_SRE_MISC);
860 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
861 }
862
863 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
864 fw_major, fw_minor, fw_build,
865 adapter->ahw.cut_through ? "cut-through" : "legacy");
866
867 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
868 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
869
870 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
871 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
872 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
873 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
874 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
875 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
876 }
877
878 adapter->msix_supported = 0;
879 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
880 adapter->msix_supported = !!use_msi_x;
881 adapter->rss_supported = !!use_msi_x;
882 } else {
883 u32 flashed_ver = 0;
884 netxen_rom_fast_read(adapter,
885 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
886 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
887
888 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
889 switch (adapter->ahw.board_type) {
890 case NETXEN_BRDTYPE_P2_SB31_10G:
891 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
892 adapter->msix_supported = !!use_msi_x;
893 adapter->rss_supported = !!use_msi_x;
894 break;
895 default:
896 break;
897 }
898 }
899 }
900
901 adapter->num_txd = MAX_CMD_DESCRIPTORS;
902
903 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
904 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
905 adapter->max_rds_rings = 3;
906 } else {
907 adapter->num_lro_rxd = 0;
908 adapter->max_rds_rings = 2;
909 }
910 }
911
912 static int
913 netxen_start_firmware(struct netxen_adapter *adapter)
914 {
915 int val, err, first_boot;
916 struct pci_dev *pdev = adapter->pdev;
917
918 /* required for NX2031 dummy dma */
919 err = nx_set_dma_mask(adapter);
920 if (err)
921 return err;
922
923 err = netxen_can_start_firmware(adapter);
924
925 if (err < 0)
926 return err;
927
928 if (!err)
929 goto wait_init;
930
931 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
932
933 err = netxen_check_hw_init(adapter, first_boot);
934 if (err) {
935 dev_err(&pdev->dev, "error in init HW init sequence\n");
936 return err;
937 }
938
939 netxen_request_firmware(adapter);
940
941 err = netxen_need_fw_reset(adapter);
942 if (err < 0)
943 goto err_out;
944 if (err == 0)
945 goto pcie_strap_init;
946
947 if (first_boot != 0x55555555) {
948 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
949 netxen_pinit_from_rom(adapter);
950 msleep(1);
951 }
952
953 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
954 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
955 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
956
957 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
958 netxen_set_port_mode(adapter);
959
960 err = netxen_load_firmware(adapter);
961 if (err)
962 goto err_out;
963
964 netxen_release_firmware(adapter);
965
966 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
967
968 /* Initialize multicast addr pool owners */
969 val = 0x7654;
970 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
971 val |= 0x0f000000;
972 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
973
974 }
975
976 err = netxen_init_dummy_dma(adapter);
977 if (err)
978 goto err_out;
979
980 /*
981 * Tell the hardware our version number.
982 */
983 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
984 | ((_NETXEN_NIC_LINUX_MINOR << 8))
985 | (_NETXEN_NIC_LINUX_SUBVERSION);
986 NXWR32(adapter, CRB_DRIVER_VERSION, val);
987
988 pcie_strap_init:
989 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
990 netxen_pcie_strap_init(adapter);
991
992 wait_init:
993 /* Handshake with the card before we register the devices. */
994 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
995 if (err) {
996 netxen_free_dummy_dma(adapter);
997 goto err_out;
998 }
999
1000 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
1001
1002 nx_update_dma_mask(adapter);
1003
1004 netxen_check_options(adapter);
1005
1006 adapter->need_fw_reset = 0;
1007
1008 /* fall through and release firmware */
1009
1010 err_out:
1011 netxen_release_firmware(adapter);
1012 return err;
1013 }
1014
1015 static int
1016 netxen_nic_request_irq(struct netxen_adapter *adapter)
1017 {
1018 irq_handler_t handler;
1019 struct nx_host_sds_ring *sds_ring;
1020 int err, ring;
1021
1022 unsigned long flags = 0;
1023 struct net_device *netdev = adapter->netdev;
1024 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1025
1026 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
1027 handler = netxen_msix_intr;
1028 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
1029 handler = netxen_msi_intr;
1030 else {
1031 flags |= IRQF_SHARED;
1032 handler = netxen_intr;
1033 }
1034 adapter->irq = netdev->irq;
1035
1036 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1037 sds_ring = &recv_ctx->sds_rings[ring];
1038 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1039 err = request_irq(sds_ring->irq, handler,
1040 flags, sds_ring->name, sds_ring);
1041 if (err)
1042 return err;
1043 }
1044
1045 return 0;
1046 }
1047
1048 static void
1049 netxen_nic_free_irq(struct netxen_adapter *adapter)
1050 {
1051 int ring;
1052 struct nx_host_sds_ring *sds_ring;
1053
1054 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1055
1056 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1057 sds_ring = &recv_ctx->sds_rings[ring];
1058 free_irq(sds_ring->irq, sds_ring);
1059 }
1060 }
1061
1062 static void
1063 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
1064 {
1065 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
1066 adapter->coal.normal.data.rx_time_us =
1067 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
1068 adapter->coal.normal.data.rx_packets =
1069 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
1070 adapter->coal.normal.data.tx_time_us =
1071 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
1072 adapter->coal.normal.data.tx_packets =
1073 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
1074 }
1075
1076 /* with rtnl_lock */
1077 static int
1078 __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1079 {
1080 int err;
1081
1082 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1083 return -EIO;
1084
1085 err = adapter->init_port(adapter, adapter->physical_port);
1086 if (err) {
1087 printk(KERN_ERR "%s: Failed to initialize port %d\n",
1088 netxen_nic_driver_name, adapter->portnum);
1089 return err;
1090 }
1091 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1092 adapter->macaddr_set(adapter, adapter->mac_addr);
1093
1094 adapter->set_multi(netdev);
1095 adapter->set_mtu(adapter, netdev->mtu);
1096
1097 adapter->ahw.linkup = 0;
1098
1099 if (adapter->max_sds_rings > 1)
1100 netxen_config_rss(adapter, 1);
1101
1102 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1103 netxen_config_intr_coalesce(adapter);
1104
1105 if (netdev->features & NETIF_F_LRO)
1106 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
1107
1108 netxen_napi_enable(adapter);
1109
1110 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1111 netxen_linkevent_request(adapter, 1);
1112 else
1113 netxen_nic_set_link_parameters(adapter);
1114
1115 set_bit(__NX_DEV_UP, &adapter->state);
1116 return 0;
1117 }
1118
1119 /* Usage: During resume and firmware recovery module.*/
1120
1121 static inline int
1122 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1123 {
1124 int err = 0;
1125
1126 rtnl_lock();
1127 if (netif_running(netdev))
1128 err = __netxen_nic_up(adapter, netdev);
1129 rtnl_unlock();
1130
1131 return err;
1132 }
1133
1134 /* with rtnl_lock */
1135 static void
1136 __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1137 {
1138 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1139 return;
1140
1141 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1142 return;
1143
1144 smp_mb();
1145 spin_lock(&adapter->tx_clean_lock);
1146 netif_carrier_off(netdev);
1147 netif_tx_disable(netdev);
1148
1149 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1150 netxen_linkevent_request(adapter, 0);
1151
1152 if (adapter->stop_port)
1153 adapter->stop_port(adapter);
1154
1155 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1156 netxen_p3_free_mac_list(adapter);
1157
1158 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1159
1160 netxen_napi_disable(adapter);
1161
1162 netxen_release_tx_buffers(adapter);
1163 spin_unlock(&adapter->tx_clean_lock);
1164 }
1165
1166 /* Usage: During suspend and firmware recovery module */
1167
1168 static inline void
1169 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1170 {
1171 rtnl_lock();
1172 if (netif_running(netdev))
1173 __netxen_nic_down(adapter, netdev);
1174 rtnl_unlock();
1175
1176 }
1177
1178 static int
1179 netxen_nic_attach(struct netxen_adapter *adapter)
1180 {
1181 struct net_device *netdev = adapter->netdev;
1182 struct pci_dev *pdev = adapter->pdev;
1183 int err, ring;
1184 struct nx_host_rds_ring *rds_ring;
1185 struct nx_host_tx_ring *tx_ring;
1186 u32 capab2;
1187
1188 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1189 return 0;
1190
1191 err = netxen_init_firmware(adapter);
1192 if (err)
1193 return err;
1194
1195 adapter->flags &= ~NETXEN_FW_MSS_CAP;
1196 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) {
1197 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2);
1198 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1199 adapter->flags |= NETXEN_FW_MSS_CAP;
1200 }
1201
1202 err = netxen_napi_add(adapter, netdev);
1203 if (err)
1204 return err;
1205
1206 err = netxen_alloc_sw_resources(adapter);
1207 if (err) {
1208 printk(KERN_ERR "%s: Error in setting sw resources\n",
1209 netdev->name);
1210 return err;
1211 }
1212
1213 err = netxen_alloc_hw_resources(adapter);
1214 if (err) {
1215 printk(KERN_ERR "%s: Error in setting hw resources\n",
1216 netdev->name);
1217 goto err_out_free_sw;
1218 }
1219
1220 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1221 tx_ring = adapter->tx_ring;
1222 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1223 crb_cmd_producer[adapter->portnum]);
1224 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1225 crb_cmd_consumer[adapter->portnum]);
1226
1227 tx_ring->producer = 0;
1228 tx_ring->sw_consumer = 0;
1229
1230 netxen_nic_update_cmd_producer(adapter, tx_ring);
1231 netxen_nic_update_cmd_consumer(adapter, tx_ring);
1232 }
1233
1234 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1235 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1236 netxen_post_rx_buffers(adapter, ring, rds_ring);
1237 }
1238
1239 err = netxen_nic_request_irq(adapter);
1240 if (err) {
1241 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1242 netdev->name);
1243 goto err_out_free_rxbuf;
1244 }
1245
1246 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1247 netxen_nic_init_coalesce_defaults(adapter);
1248
1249 netxen_create_sysfs_entries(adapter);
1250
1251 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1252 return 0;
1253
1254 err_out_free_rxbuf:
1255 netxen_release_rx_buffers(adapter);
1256 netxen_free_hw_resources(adapter);
1257 err_out_free_sw:
1258 netxen_free_sw_resources(adapter);
1259 return err;
1260 }
1261
1262 static void
1263 netxen_nic_detach(struct netxen_adapter *adapter)
1264 {
1265 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1266 return;
1267
1268 netxen_remove_sysfs_entries(adapter);
1269
1270 netxen_free_hw_resources(adapter);
1271 netxen_release_rx_buffers(adapter);
1272 netxen_nic_free_irq(adapter);
1273 netxen_napi_del(adapter);
1274 netxen_free_sw_resources(adapter);
1275
1276 adapter->is_up = 0;
1277 }
1278
1279 int
1280 netxen_nic_reset_context(struct netxen_adapter *adapter)
1281 {
1282 int err = 0;
1283 struct net_device *netdev = adapter->netdev;
1284
1285 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1286 return -EBUSY;
1287
1288 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1289
1290 netif_device_detach(netdev);
1291
1292 if (netif_running(netdev))
1293 __netxen_nic_down(adapter, netdev);
1294
1295 netxen_nic_detach(adapter);
1296
1297 if (netif_running(netdev)) {
1298 err = netxen_nic_attach(adapter);
1299 if (!err)
1300 err = __netxen_nic_up(adapter, netdev);
1301
1302 if (err)
1303 goto done;
1304 }
1305
1306 netif_device_attach(netdev);
1307 }
1308
1309 done:
1310 clear_bit(__NX_RESETTING, &adapter->state);
1311 return err;
1312 }
1313
1314 static int
1315 netxen_setup_netdev(struct netxen_adapter *adapter,
1316 struct net_device *netdev)
1317 {
1318 int err = 0;
1319 struct pci_dev *pdev = adapter->pdev;
1320
1321 adapter->mc_enabled = 0;
1322 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1323 adapter->max_mc_count = 38;
1324 else
1325 adapter->max_mc_count = 16;
1326
1327 netdev->netdev_ops = &netxen_netdev_ops;
1328 netdev->watchdog_timeo = 5*HZ;
1329
1330 netxen_nic_change_mtu(netdev, netdev->mtu);
1331
1332 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1333
1334 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
1335 NETIF_F_RXCSUM;
1336
1337 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1338 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1339
1340 netdev->vlan_features |= netdev->hw_features;
1341
1342 if (adapter->pci_using_dac) {
1343 netdev->features |= NETIF_F_HIGHDMA;
1344 netdev->vlan_features |= NETIF_F_HIGHDMA;
1345 }
1346
1347 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1348 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
1349
1350 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1351 netdev->hw_features |= NETIF_F_LRO;
1352
1353 netdev->features |= netdev->hw_features;
1354
1355 netdev->irq = adapter->msix_entries[0].vector;
1356
1357 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1358
1359 if (netxen_read_mac_addr(adapter))
1360 dev_warn(&pdev->dev, "failed to read mac addr\n");
1361
1362 netif_carrier_off(netdev);
1363
1364 err = register_netdev(netdev);
1365 if (err) {
1366 dev_err(&pdev->dev, "failed to register net device\n");
1367 return err;
1368 }
1369
1370 return 0;
1371 }
1372
1373 #ifdef CONFIG_PCIEAER
1374 static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1375 {
1376 struct pci_dev *pdev = adapter->pdev;
1377 struct pci_dev *root = pdev->bus->self;
1378 u32 aer_pos;
1379
1380 /* root bus? */
1381 if (!root)
1382 return;
1383
1384 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1385 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1386 return;
1387
1388 if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT)
1389 return;
1390
1391 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1392 if (!aer_pos)
1393 return;
1394
1395 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1396 }
1397 #endif
1398
1399 static int
1400 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1401 {
1402 struct net_device *netdev = NULL;
1403 struct netxen_adapter *adapter = NULL;
1404 int i = 0, err;
1405 int pci_func_id = PCI_FUNC(pdev->devfn);
1406 uint8_t revision_id;
1407 u32 val;
1408
1409 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1410 pr_warning("%s: chip revisions between 0x%x-0x%x "
1411 "will not be enabled.\n",
1412 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
1413 return -ENODEV;
1414 }
1415
1416 if ((err = pci_enable_device(pdev)))
1417 return err;
1418
1419 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1420 err = -ENODEV;
1421 goto err_out_disable_pdev;
1422 }
1423
1424 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1425 goto err_out_disable_pdev;
1426
1427 if (NX_IS_REVISION_P3(pdev->revision))
1428 pci_enable_pcie_error_reporting(pdev);
1429
1430 pci_set_master(pdev);
1431
1432 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1433 if(!netdev) {
1434 err = -ENOMEM;
1435 goto err_out_free_res;
1436 }
1437
1438 SET_NETDEV_DEV(netdev, &pdev->dev);
1439
1440 adapter = netdev_priv(netdev);
1441 adapter->netdev = netdev;
1442 adapter->pdev = pdev;
1443 adapter->ahw.pci_func = pci_func_id;
1444
1445 revision_id = pdev->revision;
1446 adapter->ahw.revision_id = revision_id;
1447
1448 rwlock_init(&adapter->ahw.crb_lock);
1449 spin_lock_init(&adapter->ahw.mem_lock);
1450
1451 spin_lock_init(&adapter->tx_clean_lock);
1452 INIT_LIST_HEAD(&adapter->mac_list);
1453 INIT_LIST_HEAD(&adapter->ip_list);
1454
1455 err = netxen_setup_pci_map(adapter);
1456 if (err)
1457 goto err_out_free_netdev;
1458
1459 /* This will be reset for mezz cards */
1460 adapter->portnum = pci_func_id;
1461
1462 err = netxen_nic_get_board_info(adapter);
1463 if (err) {
1464 dev_err(&pdev->dev, "Error getting board config info.\n");
1465 goto err_out_iounmap;
1466 }
1467
1468 #ifdef CONFIG_PCIEAER
1469 netxen_mask_aer_correctable(adapter);
1470 #endif
1471
1472 /* Mezz cards have PCI function 0,2,3 enabled */
1473 switch (adapter->ahw.board_type) {
1474 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1475 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1476 if (pci_func_id >= 2)
1477 adapter->portnum = pci_func_id - 2;
1478 break;
1479 default:
1480 break;
1481 }
1482
1483 err = netxen_check_flash_fw_compatibility(adapter);
1484 if (err)
1485 goto err_out_iounmap;
1486
1487 if (adapter->portnum == 0) {
1488 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1489 if (val != 0xffffffff && val != 0) {
1490 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1491 adapter->need_fw_reset = 1;
1492 }
1493 }
1494
1495 err = netxen_start_firmware(adapter);
1496 if (err)
1497 goto err_out_decr_ref;
1498
1499 /*
1500 * See if the firmware gave us a virtual-physical port mapping.
1501 */
1502 adapter->physical_port = adapter->portnum;
1503 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1504 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1505 if (i != 0x55555555)
1506 adapter->physical_port = i;
1507 }
1508
1509 netxen_nic_clear_stats(adapter);
1510
1511 netxen_setup_intr(adapter);
1512
1513 err = netxen_setup_netdev(adapter, netdev);
1514 if (err)
1515 goto err_out_disable_msi;
1516
1517 pci_set_drvdata(pdev, adapter);
1518
1519 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1520
1521 switch (adapter->ahw.port_type) {
1522 case NETXEN_NIC_GBE:
1523 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1524 adapter->netdev->name);
1525 break;
1526 case NETXEN_NIC_XGBE:
1527 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1528 adapter->netdev->name);
1529 break;
1530 }
1531
1532 netxen_create_diag_entries(adapter);
1533
1534 return 0;
1535
1536 err_out_disable_msi:
1537 netxen_teardown_intr(adapter);
1538
1539 netxen_free_dummy_dma(adapter);
1540
1541 err_out_decr_ref:
1542 nx_decr_dev_ref_cnt(adapter);
1543
1544 err_out_iounmap:
1545 netxen_cleanup_pci_map(adapter);
1546
1547 err_out_free_netdev:
1548 free_netdev(netdev);
1549
1550 err_out_free_res:
1551 pci_release_regions(pdev);
1552
1553 err_out_disable_pdev:
1554 pci_set_drvdata(pdev, NULL);
1555 pci_disable_device(pdev);
1556 return err;
1557 }
1558
1559 static
1560 void netxen_cleanup_minidump(struct netxen_adapter *adapter)
1561 {
1562 kfree(adapter->mdump.md_template);
1563 adapter->mdump.md_template = NULL;
1564
1565 if (adapter->mdump.md_capture_buff) {
1566 vfree(adapter->mdump.md_capture_buff);
1567 adapter->mdump.md_capture_buff = NULL;
1568 }
1569 }
1570
1571 static void netxen_nic_remove(struct pci_dev *pdev)
1572 {
1573 struct netxen_adapter *adapter;
1574 struct net_device *netdev;
1575
1576 adapter = pci_get_drvdata(pdev);
1577 if (adapter == NULL)
1578 return;
1579
1580 netdev = adapter->netdev;
1581
1582 netxen_cancel_fw_work(adapter);
1583
1584 unregister_netdev(netdev);
1585
1586 cancel_work_sync(&adapter->tx_timeout_task);
1587
1588 netxen_free_ip_list(adapter, false);
1589 netxen_nic_detach(adapter);
1590
1591 nx_decr_dev_ref_cnt(adapter);
1592
1593 if (adapter->portnum == 0)
1594 netxen_free_dummy_dma(adapter);
1595
1596 clear_bit(__NX_RESETTING, &adapter->state);
1597
1598 netxen_teardown_intr(adapter);
1599
1600 netxen_remove_diag_entries(adapter);
1601
1602 netxen_cleanup_pci_map(adapter);
1603
1604 netxen_release_firmware(adapter);
1605
1606 if (NX_IS_REVISION_P3(pdev->revision)) {
1607 netxen_cleanup_minidump(adapter);
1608 pci_disable_pcie_error_reporting(pdev);
1609 }
1610
1611 pci_release_regions(pdev);
1612 pci_disable_device(pdev);
1613 pci_set_drvdata(pdev, NULL);
1614
1615 free_netdev(netdev);
1616 }
1617
1618 static void netxen_nic_detach_func(struct netxen_adapter *adapter)
1619 {
1620 struct net_device *netdev = adapter->netdev;
1621
1622 netif_device_detach(netdev);
1623
1624 netxen_cancel_fw_work(adapter);
1625
1626 if (netif_running(netdev))
1627 netxen_nic_down(adapter, netdev);
1628
1629 cancel_work_sync(&adapter->tx_timeout_task);
1630
1631 netxen_nic_detach(adapter);
1632
1633 if (adapter->portnum == 0)
1634 netxen_free_dummy_dma(adapter);
1635
1636 nx_decr_dev_ref_cnt(adapter);
1637
1638 clear_bit(__NX_RESETTING, &adapter->state);
1639 }
1640
1641 static int netxen_nic_attach_func(struct pci_dev *pdev)
1642 {
1643 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1644 struct net_device *netdev = adapter->netdev;
1645 int err;
1646
1647 err = pci_enable_device(pdev);
1648 if (err)
1649 return err;
1650
1651 pci_set_power_state(pdev, PCI_D0);
1652 pci_set_master(pdev);
1653 pci_restore_state(pdev);
1654
1655 adapter->ahw.crb_win = -1;
1656 adapter->ahw.ocm_win = -1;
1657
1658 err = netxen_start_firmware(adapter);
1659 if (err) {
1660 dev_err(&pdev->dev, "failed to start firmware\n");
1661 return err;
1662 }
1663
1664 if (netif_running(netdev)) {
1665 err = netxen_nic_attach(adapter);
1666 if (err)
1667 goto err_out;
1668
1669 err = netxen_nic_up(adapter, netdev);
1670 if (err)
1671 goto err_out_detach;
1672
1673 netxen_restore_indev_addr(netdev, NETDEV_UP);
1674 }
1675
1676 netif_device_attach(netdev);
1677 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1678 return 0;
1679
1680 err_out_detach:
1681 netxen_nic_detach(adapter);
1682 err_out:
1683 nx_decr_dev_ref_cnt(adapter);
1684 return err;
1685 }
1686
1687 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1688 pci_channel_state_t state)
1689 {
1690 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1691
1692 if (state == pci_channel_io_perm_failure)
1693 return PCI_ERS_RESULT_DISCONNECT;
1694
1695 if (nx_dev_request_aer(adapter))
1696 return PCI_ERS_RESULT_RECOVERED;
1697
1698 netxen_nic_detach_func(adapter);
1699
1700 pci_disable_device(pdev);
1701
1702 return PCI_ERS_RESULT_NEED_RESET;
1703 }
1704
1705 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1706 {
1707 int err = 0;
1708
1709 err = netxen_nic_attach_func(pdev);
1710
1711 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1712 }
1713
1714 static void netxen_io_resume(struct pci_dev *pdev)
1715 {
1716 pci_cleanup_aer_uncorrect_error_status(pdev);
1717 }
1718
1719 static void netxen_nic_shutdown(struct pci_dev *pdev)
1720 {
1721 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1722
1723 netxen_nic_detach_func(adapter);
1724
1725 if (pci_save_state(pdev))
1726 return;
1727
1728 if (netxen_nic_wol_supported(adapter)) {
1729 pci_enable_wake(pdev, PCI_D3cold, 1);
1730 pci_enable_wake(pdev, PCI_D3hot, 1);
1731 }
1732
1733 pci_disable_device(pdev);
1734 }
1735
1736 #ifdef CONFIG_PM
1737 static int
1738 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1739 {
1740 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1741 int retval;
1742
1743 netxen_nic_detach_func(adapter);
1744
1745 retval = pci_save_state(pdev);
1746 if (retval)
1747 return retval;
1748
1749 if (netxen_nic_wol_supported(adapter)) {
1750 pci_enable_wake(pdev, PCI_D3cold, 1);
1751 pci_enable_wake(pdev, PCI_D3hot, 1);
1752 }
1753
1754 pci_disable_device(pdev);
1755 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1756
1757 return 0;
1758 }
1759
1760 static int
1761 netxen_nic_resume(struct pci_dev *pdev)
1762 {
1763 return netxen_nic_attach_func(pdev);
1764 }
1765 #endif
1766
1767 static int netxen_nic_open(struct net_device *netdev)
1768 {
1769 struct netxen_adapter *adapter = netdev_priv(netdev);
1770 int err = 0;
1771
1772 if (adapter->driver_mismatch)
1773 return -EIO;
1774
1775 err = netxen_nic_attach(adapter);
1776 if (err)
1777 return err;
1778
1779 err = __netxen_nic_up(adapter, netdev);
1780 if (err)
1781 goto err_out;
1782
1783 netif_start_queue(netdev);
1784
1785 return 0;
1786
1787 err_out:
1788 netxen_nic_detach(adapter);
1789 return err;
1790 }
1791
1792 /*
1793 * netxen_nic_close - Disables a network interface entry point
1794 */
1795 static int netxen_nic_close(struct net_device *netdev)
1796 {
1797 struct netxen_adapter *adapter = netdev_priv(netdev);
1798
1799 __netxen_nic_down(adapter, netdev);
1800 return 0;
1801 }
1802
1803 static void
1804 netxen_tso_check(struct net_device *netdev,
1805 struct nx_host_tx_ring *tx_ring,
1806 struct cmd_desc_type0 *first_desc,
1807 struct sk_buff *skb)
1808 {
1809 u8 opcode = TX_ETHER_PKT;
1810 __be16 protocol = skb->protocol;
1811 u16 flags = 0, vid = 0;
1812 u32 producer;
1813 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1814 struct cmd_desc_type0 *hwdesc;
1815 struct vlan_ethhdr *vh;
1816
1817 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1818
1819 vh = (struct vlan_ethhdr *)skb->data;
1820 protocol = vh->h_vlan_encapsulated_proto;
1821 flags = FLAGS_VLAN_TAGGED;
1822
1823 } else if (vlan_tx_tag_present(skb)) {
1824 flags = FLAGS_VLAN_OOB;
1825 vid = vlan_tx_tag_get(skb);
1826 netxen_set_tx_vlan_tci(first_desc, vid);
1827 vlan_oob = 1;
1828 }
1829
1830 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1831 skb_shinfo(skb)->gso_size > 0) {
1832
1833 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1834
1835 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1836 first_desc->total_hdr_length = hdr_len;
1837 if (vlan_oob) {
1838 first_desc->total_hdr_length += VLAN_HLEN;
1839 first_desc->tcp_hdr_offset = VLAN_HLEN;
1840 first_desc->ip_hdr_offset = VLAN_HLEN;
1841 /* Only in case of TSO on vlan device */
1842 flags |= FLAGS_VLAN_TAGGED;
1843 }
1844
1845 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1846 TX_TCP_LSO6 : TX_TCP_LSO;
1847 tso = 1;
1848
1849 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1850 u8 l4proto;
1851
1852 if (protocol == cpu_to_be16(ETH_P_IP)) {
1853 l4proto = ip_hdr(skb)->protocol;
1854
1855 if (l4proto == IPPROTO_TCP)
1856 opcode = TX_TCP_PKT;
1857 else if(l4proto == IPPROTO_UDP)
1858 opcode = TX_UDP_PKT;
1859 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1860 l4proto = ipv6_hdr(skb)->nexthdr;
1861
1862 if (l4proto == IPPROTO_TCP)
1863 opcode = TX_TCPV6_PKT;
1864 else if(l4proto == IPPROTO_UDP)
1865 opcode = TX_UDPV6_PKT;
1866 }
1867 }
1868
1869 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1870 first_desc->ip_hdr_offset += skb_network_offset(skb);
1871 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1872
1873 if (!tso)
1874 return;
1875
1876 /* For LSO, we need to copy the MAC/IP/TCP headers into
1877 * the descriptor ring
1878 */
1879 producer = tx_ring->producer;
1880 copied = 0;
1881 offset = 2;
1882
1883 if (vlan_oob) {
1884 /* Create a TSO vlan header template for firmware */
1885
1886 hwdesc = &tx_ring->desc_head[producer];
1887 tx_ring->cmd_buf_arr[producer].skb = NULL;
1888
1889 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1890 hdr_len + VLAN_HLEN);
1891
1892 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1893 skb_copy_from_linear_data(skb, vh, 12);
1894 vh->h_vlan_proto = htons(ETH_P_8021Q);
1895 vh->h_vlan_TCI = htons(vid);
1896 skb_copy_from_linear_data_offset(skb, 12,
1897 (char *)vh + 16, copy_len - 16);
1898
1899 copied = copy_len - VLAN_HLEN;
1900 offset = 0;
1901
1902 producer = get_next_index(producer, tx_ring->num_desc);
1903 }
1904
1905 while (copied < hdr_len) {
1906
1907 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1908 (hdr_len - copied));
1909
1910 hwdesc = &tx_ring->desc_head[producer];
1911 tx_ring->cmd_buf_arr[producer].skb = NULL;
1912
1913 skb_copy_from_linear_data_offset(skb, copied,
1914 (char *)hwdesc + offset, copy_len);
1915
1916 copied += copy_len;
1917 offset = 0;
1918
1919 producer = get_next_index(producer, tx_ring->num_desc);
1920 }
1921
1922 tx_ring->producer = producer;
1923 barrier();
1924 }
1925
1926 static int
1927 netxen_map_tx_skb(struct pci_dev *pdev,
1928 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1929 {
1930 struct netxen_skb_frag *nf;
1931 struct skb_frag_struct *frag;
1932 int i, nr_frags;
1933 dma_addr_t map;
1934
1935 nr_frags = skb_shinfo(skb)->nr_frags;
1936 nf = &pbuf->frag_array[0];
1937
1938 map = pci_map_single(pdev, skb->data,
1939 skb_headlen(skb), PCI_DMA_TODEVICE);
1940 if (pci_dma_mapping_error(pdev, map))
1941 goto out_err;
1942
1943 nf->dma = map;
1944 nf->length = skb_headlen(skb);
1945
1946 for (i = 0; i < nr_frags; i++) {
1947 frag = &skb_shinfo(skb)->frags[i];
1948 nf = &pbuf->frag_array[i+1];
1949
1950 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
1951 DMA_TO_DEVICE);
1952 if (dma_mapping_error(&pdev->dev, map))
1953 goto unwind;
1954
1955 nf->dma = map;
1956 nf->length = skb_frag_size(frag);
1957 }
1958
1959 return 0;
1960
1961 unwind:
1962 while (--i >= 0) {
1963 nf = &pbuf->frag_array[i+1];
1964 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1965 nf->dma = 0ULL;
1966 }
1967
1968 nf = &pbuf->frag_array[0];
1969 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1970 nf->dma = 0ULL;
1971
1972 out_err:
1973 return -ENOMEM;
1974 }
1975
1976 static inline void
1977 netxen_clear_cmddesc(u64 *desc)
1978 {
1979 desc[0] = 0ULL;
1980 desc[2] = 0ULL;
1981 }
1982
1983 static netdev_tx_t
1984 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1985 {
1986 struct netxen_adapter *adapter = netdev_priv(netdev);
1987 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1988 struct netxen_cmd_buffer *pbuf;
1989 struct netxen_skb_frag *buffrag;
1990 struct cmd_desc_type0 *hwdesc, *first_desc;
1991 struct pci_dev *pdev;
1992 int i, k;
1993 int delta = 0;
1994 struct skb_frag_struct *frag;
1995
1996 u32 producer;
1997 int frag_count, no_of_desc;
1998 u32 num_txd = tx_ring->num_desc;
1999
2000 frag_count = skb_shinfo(skb)->nr_frags + 1;
2001
2002 /* 14 frags supported for normal packet and
2003 * 32 frags supported for TSO packet
2004 */
2005 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
2006
2007 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
2008 frag = &skb_shinfo(skb)->frags[i];
2009 delta += skb_frag_size(frag);
2010 }
2011
2012 if (!__pskb_pull_tail(skb, delta))
2013 goto drop_packet;
2014
2015 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2016 }
2017 /* 4 fragments per cmd des */
2018 no_of_desc = (frag_count + 3) >> 2;
2019
2020 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2021 netif_stop_queue(netdev);
2022 smp_mb();
2023 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
2024 netif_start_queue(netdev);
2025 else
2026 return NETDEV_TX_BUSY;
2027 }
2028
2029 producer = tx_ring->producer;
2030 pbuf = &tx_ring->cmd_buf_arr[producer];
2031
2032 pdev = adapter->pdev;
2033
2034 if (netxen_map_tx_skb(pdev, skb, pbuf))
2035 goto drop_packet;
2036
2037 pbuf->skb = skb;
2038 pbuf->frag_count = frag_count;
2039
2040 first_desc = hwdesc = &tx_ring->desc_head[producer];
2041 netxen_clear_cmddesc((u64 *)hwdesc);
2042
2043 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
2044 netxen_set_tx_port(first_desc, adapter->portnum);
2045
2046 for (i = 0; i < frag_count; i++) {
2047
2048 k = i % 4;
2049
2050 if ((k == 0) && (i > 0)) {
2051 /* move to next desc.*/
2052 producer = get_next_index(producer, num_txd);
2053 hwdesc = &tx_ring->desc_head[producer];
2054 netxen_clear_cmddesc((u64 *)hwdesc);
2055 tx_ring->cmd_buf_arr[producer].skb = NULL;
2056 }
2057
2058 buffrag = &pbuf->frag_array[i];
2059
2060 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2061 switch (k) {
2062 case 0:
2063 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2064 break;
2065 case 1:
2066 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2067 break;
2068 case 2:
2069 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2070 break;
2071 case 3:
2072 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2073 break;
2074 }
2075 }
2076
2077 tx_ring->producer = get_next_index(producer, num_txd);
2078
2079 netxen_tso_check(netdev, tx_ring, first_desc, skb);
2080
2081 adapter->stats.txbytes += skb->len;
2082 adapter->stats.xmitcalled++;
2083
2084 netxen_nic_update_cmd_producer(adapter, tx_ring);
2085
2086 return NETDEV_TX_OK;
2087
2088 drop_packet:
2089 adapter->stats.txdropped++;
2090 dev_kfree_skb_any(skb);
2091 return NETDEV_TX_OK;
2092 }
2093
2094 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
2095 {
2096 struct net_device *netdev = adapter->netdev;
2097 uint32_t temp, temp_state, temp_val;
2098 int rv = 0;
2099
2100 temp = NXRD32(adapter, CRB_TEMP_STATE);
2101
2102 temp_state = nx_get_temp_state(temp);
2103 temp_val = nx_get_temp_val(temp);
2104
2105 if (temp_state == NX_TEMP_PANIC) {
2106 printk(KERN_ALERT
2107 "%s: Device temperature %d degrees C exceeds"
2108 " maximum allowed. Hardware has been shut down.\n",
2109 netdev->name, temp_val);
2110 rv = 1;
2111 } else if (temp_state == NX_TEMP_WARN) {
2112 if (adapter->temp == NX_TEMP_NORMAL) {
2113 printk(KERN_ALERT
2114 "%s: Device temperature %d degrees C "
2115 "exceeds operating range."
2116 " Immediate action needed.\n",
2117 netdev->name, temp_val);
2118 }
2119 } else {
2120 if (adapter->temp == NX_TEMP_WARN) {
2121 printk(KERN_INFO
2122 "%s: Device temperature is now %d degrees C"
2123 " in normal range.\n", netdev->name,
2124 temp_val);
2125 }
2126 }
2127 adapter->temp = temp_state;
2128 return rv;
2129 }
2130
2131 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
2132 {
2133 struct net_device *netdev = adapter->netdev;
2134
2135 if (adapter->ahw.linkup && !linkup) {
2136 printk(KERN_INFO "%s: %s NIC Link is down\n",
2137 netxen_nic_driver_name, netdev->name);
2138 adapter->ahw.linkup = 0;
2139 if (netif_running(netdev)) {
2140 netif_carrier_off(netdev);
2141 netif_stop_queue(netdev);
2142 }
2143 adapter->link_changed = !adapter->has_link_events;
2144 } else if (!adapter->ahw.linkup && linkup) {
2145 printk(KERN_INFO "%s: %s NIC Link is up\n",
2146 netxen_nic_driver_name, netdev->name);
2147 adapter->ahw.linkup = 1;
2148 if (netif_running(netdev)) {
2149 netif_carrier_on(netdev);
2150 netif_wake_queue(netdev);
2151 }
2152 adapter->link_changed = !adapter->has_link_events;
2153 }
2154 }
2155
2156 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2157 {
2158 u32 val, port, linkup;
2159
2160 port = adapter->physical_port;
2161
2162 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2163 val = NXRD32(adapter, CRB_XG_STATE_P3);
2164 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2165 linkup = (val == XG_LINK_UP_P3);
2166 } else {
2167 val = NXRD32(adapter, CRB_XG_STATE);
2168 val = (val >> port*8) & 0xff;
2169 linkup = (val == XG_LINK_UP);
2170 }
2171
2172 netxen_advert_link_change(adapter, linkup);
2173 }
2174
2175 static void netxen_tx_timeout(struct net_device *netdev)
2176 {
2177 struct netxen_adapter *adapter = netdev_priv(netdev);
2178
2179 if (test_bit(__NX_RESETTING, &adapter->state))
2180 return;
2181
2182 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2183 schedule_work(&adapter->tx_timeout_task);
2184 }
2185
2186 static void netxen_tx_timeout_task(struct work_struct *work)
2187 {
2188 struct netxen_adapter *adapter =
2189 container_of(work, struct netxen_adapter, tx_timeout_task);
2190
2191 if (!netif_running(adapter->netdev))
2192 return;
2193
2194 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
2195 return;
2196
2197 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2198 goto request_reset;
2199
2200 rtnl_lock();
2201 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2202 /* try to scrub interrupt */
2203 netxen_napi_disable(adapter);
2204
2205 netxen_napi_enable(adapter);
2206
2207 netif_wake_queue(adapter->netdev);
2208
2209 clear_bit(__NX_RESETTING, &adapter->state);
2210 } else {
2211 clear_bit(__NX_RESETTING, &adapter->state);
2212 if (netxen_nic_reset_context(adapter)) {
2213 rtnl_unlock();
2214 goto request_reset;
2215 }
2216 }
2217 adapter->netdev->trans_start = jiffies;
2218 rtnl_unlock();
2219 return;
2220
2221 request_reset:
2222 adapter->need_fw_reset = 1;
2223 clear_bit(__NX_RESETTING, &adapter->state);
2224 }
2225
2226 static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev,
2227 struct rtnl_link_stats64 *stats)
2228 {
2229 struct netxen_adapter *adapter = netdev_priv(netdev);
2230
2231 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2232 stats->tx_packets = adapter->stats.xmitfinished;
2233 stats->rx_bytes = adapter->stats.rxbytes;
2234 stats->tx_bytes = adapter->stats.txbytes;
2235 stats->rx_dropped = adapter->stats.rxdropped;
2236 stats->tx_dropped = adapter->stats.txdropped;
2237
2238 return stats;
2239 }
2240
2241 static irqreturn_t netxen_intr(int irq, void *data)
2242 {
2243 struct nx_host_sds_ring *sds_ring = data;
2244 struct netxen_adapter *adapter = sds_ring->adapter;
2245 u32 status = 0;
2246
2247 status = readl(adapter->isr_int_vec);
2248
2249 if (!(status & adapter->int_vec_bit))
2250 return IRQ_NONE;
2251
2252 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2253 /* check interrupt state machine, to be sure */
2254 status = readl(adapter->crb_int_state_reg);
2255 if (!ISR_LEGACY_INT_TRIGGERED(status))
2256 return IRQ_NONE;
2257
2258 } else {
2259 unsigned long our_int = 0;
2260
2261 our_int = readl(adapter->crb_int_state_reg);
2262
2263 /* not our interrupt */
2264 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2265 return IRQ_NONE;
2266
2267 /* claim interrupt */
2268 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2269
2270 /* clear interrupt */
2271 netxen_nic_disable_int(sds_ring);
2272 }
2273
2274 writel(0xffffffff, adapter->tgt_status_reg);
2275 /* read twice to ensure write is flushed */
2276 readl(adapter->isr_int_vec);
2277 readl(adapter->isr_int_vec);
2278
2279 napi_schedule(&sds_ring->napi);
2280
2281 return IRQ_HANDLED;
2282 }
2283
2284 static irqreturn_t netxen_msi_intr(int irq, void *data)
2285 {
2286 struct nx_host_sds_ring *sds_ring = data;
2287 struct netxen_adapter *adapter = sds_ring->adapter;
2288
2289 /* clear interrupt */
2290 writel(0xffffffff, adapter->tgt_status_reg);
2291
2292 napi_schedule(&sds_ring->napi);
2293 return IRQ_HANDLED;
2294 }
2295
2296 static irqreturn_t netxen_msix_intr(int irq, void *data)
2297 {
2298 struct nx_host_sds_ring *sds_ring = data;
2299
2300 napi_schedule(&sds_ring->napi);
2301 return IRQ_HANDLED;
2302 }
2303
2304 static int netxen_nic_poll(struct napi_struct *napi, int budget)
2305 {
2306 struct nx_host_sds_ring *sds_ring =
2307 container_of(napi, struct nx_host_sds_ring, napi);
2308
2309 struct netxen_adapter *adapter = sds_ring->adapter;
2310
2311 int tx_complete;
2312 int work_done;
2313
2314 tx_complete = netxen_process_cmd_ring(adapter);
2315
2316 work_done = netxen_process_rcv_ring(sds_ring, budget);
2317
2318 if ((work_done < budget) && tx_complete) {
2319 napi_complete(&sds_ring->napi);
2320 if (test_bit(__NX_DEV_UP, &adapter->state))
2321 netxen_nic_enable_int(sds_ring);
2322 }
2323
2324 return work_done;
2325 }
2326
2327 #ifdef CONFIG_NET_POLL_CONTROLLER
2328 static void netxen_nic_poll_controller(struct net_device *netdev)
2329 {
2330 int ring;
2331 struct nx_host_sds_ring *sds_ring;
2332 struct netxen_adapter *adapter = netdev_priv(netdev);
2333 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2334
2335 disable_irq(adapter->irq);
2336 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2337 sds_ring = &recv_ctx->sds_rings[ring];
2338 netxen_intr(adapter->irq, sds_ring);
2339 }
2340 enable_irq(adapter->irq);
2341 }
2342 #endif
2343
2344 static int
2345 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2346 {
2347 int count;
2348 if (netxen_api_lock(adapter))
2349 return -EIO;
2350
2351 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2352
2353 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2354
2355 netxen_api_unlock(adapter);
2356 return count;
2357 }
2358
2359 static int
2360 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2361 {
2362 int count, state;
2363 if (netxen_api_lock(adapter))
2364 return -EIO;
2365
2366 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2367 WARN_ON(count == 0);
2368
2369 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2370 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2371
2372 if (count == 0 && state != NX_DEV_FAILED)
2373 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2374
2375 netxen_api_unlock(adapter);
2376 return count;
2377 }
2378
2379 static int
2380 nx_dev_request_aer(struct netxen_adapter *adapter)
2381 {
2382 u32 state;
2383 int ret = -EINVAL;
2384
2385 if (netxen_api_lock(adapter))
2386 return ret;
2387
2388 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2389
2390 if (state == NX_DEV_NEED_AER)
2391 ret = 0;
2392 else if (state == NX_DEV_READY) {
2393 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2394 ret = 0;
2395 }
2396
2397 netxen_api_unlock(adapter);
2398 return ret;
2399 }
2400
2401 int
2402 nx_dev_request_reset(struct netxen_adapter *adapter)
2403 {
2404 u32 state;
2405 int ret = -EINVAL;
2406
2407 if (netxen_api_lock(adapter))
2408 return ret;
2409
2410 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2411
2412 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED)
2413 ret = 0;
2414 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
2415 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2416 adapter->flags |= NETXEN_FW_RESET_OWNER;
2417 ret = 0;
2418 }
2419
2420 netxen_api_unlock(adapter);
2421
2422 return ret;
2423 }
2424
2425 static int
2426 netxen_can_start_firmware(struct netxen_adapter *adapter)
2427 {
2428 int count;
2429 int can_start = 0;
2430
2431 if (netxen_api_lock(adapter)) {
2432 nx_incr_dev_ref_cnt(adapter);
2433 return -1;
2434 }
2435
2436 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2437
2438 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2439 count = 0;
2440
2441 if (count == 0) {
2442 can_start = 1;
2443 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2444 }
2445
2446 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2447
2448 netxen_api_unlock(adapter);
2449
2450 return can_start;
2451 }
2452
2453 static void
2454 netxen_schedule_work(struct netxen_adapter *adapter,
2455 work_func_t func, int delay)
2456 {
2457 INIT_DELAYED_WORK(&adapter->fw_work, func);
2458 schedule_delayed_work(&adapter->fw_work, delay);
2459 }
2460
2461 static void
2462 netxen_cancel_fw_work(struct netxen_adapter *adapter)
2463 {
2464 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2465 msleep(10);
2466
2467 cancel_delayed_work_sync(&adapter->fw_work);
2468 }
2469
2470 static void
2471 netxen_attach_work(struct work_struct *work)
2472 {
2473 struct netxen_adapter *adapter = container_of(work,
2474 struct netxen_adapter, fw_work.work);
2475 struct net_device *netdev = adapter->netdev;
2476 int err = 0;
2477
2478 if (netif_running(netdev)) {
2479 err = netxen_nic_attach(adapter);
2480 if (err)
2481 goto done;
2482
2483 err = netxen_nic_up(adapter, netdev);
2484 if (err) {
2485 netxen_nic_detach(adapter);
2486 goto done;
2487 }
2488
2489 netxen_restore_indev_addr(netdev, NETDEV_UP);
2490 }
2491
2492 netif_device_attach(netdev);
2493
2494 done:
2495 adapter->fw_fail_cnt = 0;
2496 clear_bit(__NX_RESETTING, &adapter->state);
2497 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2498 }
2499
2500 static void
2501 netxen_fwinit_work(struct work_struct *work)
2502 {
2503 struct netxen_adapter *adapter = container_of(work,
2504 struct netxen_adapter, fw_work.work);
2505 int dev_state;
2506 int count;
2507 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2508 if (adapter->flags & NETXEN_FW_RESET_OWNER) {
2509 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2510 WARN_ON(count == 0);
2511 if (count == 1) {
2512 if (adapter->mdump.md_enabled) {
2513 rtnl_lock();
2514 netxen_dump_fw(adapter);
2515 rtnl_unlock();
2516 }
2517 adapter->flags &= ~NETXEN_FW_RESET_OWNER;
2518 if (netxen_api_lock(adapter)) {
2519 clear_bit(__NX_RESETTING, &adapter->state);
2520 NXWR32(adapter, NX_CRB_DEV_STATE,
2521 NX_DEV_FAILED);
2522 return;
2523 }
2524 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2525 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2526 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2527 dev_state = NX_DEV_COLD;
2528 netxen_api_unlock(adapter);
2529 }
2530 }
2531
2532 switch (dev_state) {
2533 case NX_DEV_COLD:
2534 case NX_DEV_READY:
2535 if (!netxen_start_firmware(adapter)) {
2536 netxen_schedule_work(adapter, netxen_attach_work, 0);
2537 return;
2538 }
2539 break;
2540
2541 case NX_DEV_NEED_RESET:
2542 case NX_DEV_INITALIZING:
2543 netxen_schedule_work(adapter,
2544 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2545 return;
2546
2547 case NX_DEV_FAILED:
2548 default:
2549 nx_incr_dev_ref_cnt(adapter);
2550 break;
2551 }
2552
2553 if (netxen_api_lock(adapter)) {
2554 clear_bit(__NX_RESETTING, &adapter->state);
2555 return;
2556 }
2557 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED);
2558 netxen_api_unlock(adapter);
2559 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n",
2560 adapter->netdev->name);
2561
2562 clear_bit(__NX_RESETTING, &adapter->state);
2563 }
2564
2565 static void
2566 netxen_detach_work(struct work_struct *work)
2567 {
2568 struct netxen_adapter *adapter = container_of(work,
2569 struct netxen_adapter, fw_work.work);
2570 struct net_device *netdev = adapter->netdev;
2571 int ref_cnt = 0, delay;
2572 u32 status;
2573
2574 netif_device_detach(netdev);
2575
2576 netxen_nic_down(adapter, netdev);
2577
2578 rtnl_lock();
2579 netxen_nic_detach(adapter);
2580 rtnl_unlock();
2581
2582 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2583
2584 if (status & NX_RCODE_FATAL_ERROR)
2585 goto err_ret;
2586
2587 if (adapter->temp == NX_TEMP_PANIC)
2588 goto err_ret;
2589
2590 if (!(adapter->flags & NETXEN_FW_RESET_OWNER))
2591 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2592
2593 if (ref_cnt == -EIO)
2594 goto err_ret;
2595
2596 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2597
2598 adapter->fw_wait_cnt = 0;
2599 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2600
2601 return;
2602
2603 err_ret:
2604 clear_bit(__NX_RESETTING, &adapter->state);
2605 }
2606
2607 static int
2608 netxen_check_health(struct netxen_adapter *adapter)
2609 {
2610 u32 state, heartbit;
2611 u32 peg_status;
2612 struct net_device *netdev = adapter->netdev;
2613
2614 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2615 if (state == NX_DEV_NEED_AER)
2616 return 0;
2617
2618 if (netxen_nic_check_temp(adapter))
2619 goto detach;
2620
2621 if (adapter->need_fw_reset) {
2622 if (nx_dev_request_reset(adapter))
2623 return 0;
2624 goto detach;
2625 }
2626
2627 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2628 * 1. Tx timeout 2. Fw hang
2629 * Send request to destroy context in case of tx timeout only
2630 * and doesn't required in case of Fw hang
2631 */
2632 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) {
2633 adapter->need_fw_reset = 1;
2634 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2635 goto detach;
2636 }
2637
2638 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2639 return 0;
2640
2641 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2642 if (heartbit != adapter->heartbit) {
2643 adapter->heartbit = heartbit;
2644 adapter->fw_fail_cnt = 0;
2645 if (adapter->need_fw_reset)
2646 goto detach;
2647 return 0;
2648 }
2649
2650 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2651 return 0;
2652
2653 if (nx_dev_request_reset(adapter))
2654 return 0;
2655
2656 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2657
2658 dev_err(&netdev->dev, "firmware hang detected\n");
2659 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2660 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2661 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2662 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2663 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2664 "PEG_NET_4_PC: 0x%x\n",
2665 peg_status,
2666 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2),
2667 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c),
2668 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c),
2669 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c),
2670 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c),
2671 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c));
2672 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67)
2673 dev_err(&adapter->pdev->dev,
2674 "Firmware aborted with error code 0x00006700. "
2675 "Device is being reset.\n");
2676 detach:
2677 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2678 !test_and_set_bit(__NX_RESETTING, &adapter->state))
2679 netxen_schedule_work(adapter, netxen_detach_work, 0);
2680 return 1;
2681 }
2682
2683 static void
2684 netxen_fw_poll_work(struct work_struct *work)
2685 {
2686 struct netxen_adapter *adapter = container_of(work,
2687 struct netxen_adapter, fw_work.work);
2688
2689 if (test_bit(__NX_RESETTING, &adapter->state))
2690 goto reschedule;
2691
2692 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2693 if (!adapter->has_link_events) {
2694
2695 netxen_nic_handle_phy_intr(adapter);
2696
2697 if (adapter->link_changed)
2698 netxen_nic_set_link_parameters(adapter);
2699 }
2700 }
2701
2702 if (netxen_check_health(adapter))
2703 return;
2704
2705 reschedule:
2706 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2707 }
2708
2709 static ssize_t
2710 netxen_store_bridged_mode(struct device *dev,
2711 struct device_attribute *attr, const char *buf, size_t len)
2712 {
2713 struct net_device *net = to_net_dev(dev);
2714 struct netxen_adapter *adapter = netdev_priv(net);
2715 unsigned long new;
2716 int ret = -EINVAL;
2717
2718 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2719 goto err_out;
2720
2721 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2722 goto err_out;
2723
2724 if (strict_strtoul(buf, 2, &new))
2725 goto err_out;
2726
2727 if (!netxen_config_bridged_mode(adapter, !!new))
2728 ret = len;
2729
2730 err_out:
2731 return ret;
2732 }
2733
2734 static ssize_t
2735 netxen_show_bridged_mode(struct device *dev,
2736 struct device_attribute *attr, char *buf)
2737 {
2738 struct net_device *net = to_net_dev(dev);
2739 struct netxen_adapter *adapter;
2740 int bridged_mode = 0;
2741
2742 adapter = netdev_priv(net);
2743
2744 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2745 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2746
2747 return sprintf(buf, "%d\n", bridged_mode);
2748 }
2749
2750 static struct device_attribute dev_attr_bridged_mode = {
2751 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2752 .show = netxen_show_bridged_mode,
2753 .store = netxen_store_bridged_mode,
2754 };
2755
2756 static ssize_t
2757 netxen_store_diag_mode(struct device *dev,
2758 struct device_attribute *attr, const char *buf, size_t len)
2759 {
2760 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2761 unsigned long new;
2762
2763 if (strict_strtoul(buf, 2, &new))
2764 return -EINVAL;
2765
2766 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2767 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2768
2769 return len;
2770 }
2771
2772 static ssize_t
2773 netxen_show_diag_mode(struct device *dev,
2774 struct device_attribute *attr, char *buf)
2775 {
2776 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2777
2778 return sprintf(buf, "%d\n",
2779 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2780 }
2781
2782 static struct device_attribute dev_attr_diag_mode = {
2783 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2784 .show = netxen_show_diag_mode,
2785 .store = netxen_store_diag_mode,
2786 };
2787
2788 static int
2789 netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2790 loff_t offset, size_t size)
2791 {
2792 size_t crb_size = 4;
2793
2794 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2795 return -EIO;
2796
2797 if (offset < NETXEN_PCI_CRBSPACE) {
2798 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2799 return -EINVAL;
2800
2801 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2802 NETXEN_PCI_CAMQM_2M_END))
2803 crb_size = 8;
2804 else
2805 return -EINVAL;
2806 }
2807
2808 if ((size != crb_size) || (offset & (crb_size-1)))
2809 return -EINVAL;
2810
2811 return 0;
2812 }
2813
2814 static ssize_t
2815 netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2816 struct bin_attribute *attr,
2817 char *buf, loff_t offset, size_t size)
2818 {
2819 struct device *dev = container_of(kobj, struct device, kobj);
2820 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2821 u32 data;
2822 u64 qmdata;
2823 int ret;
2824
2825 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2826 if (ret != 0)
2827 return ret;
2828
2829 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2830 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2831 NETXEN_PCI_CAMQM_2M_END)) {
2832 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2833 memcpy(buf, &qmdata, size);
2834 } else {
2835 data = NXRD32(adapter, offset);
2836 memcpy(buf, &data, size);
2837 }
2838
2839 return size;
2840 }
2841
2842 static ssize_t
2843 netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2844 struct bin_attribute *attr,
2845 char *buf, loff_t offset, size_t size)
2846 {
2847 struct device *dev = container_of(kobj, struct device, kobj);
2848 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2849 u32 data;
2850 u64 qmdata;
2851 int ret;
2852
2853 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2854 if (ret != 0)
2855 return ret;
2856
2857 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2858 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2859 NETXEN_PCI_CAMQM_2M_END)) {
2860 memcpy(&qmdata, buf, size);
2861 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2862 } else {
2863 memcpy(&data, buf, size);
2864 NXWR32(adapter, offset, data);
2865 }
2866
2867 return size;
2868 }
2869
2870 static int
2871 netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2872 loff_t offset, size_t size)
2873 {
2874 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2875 return -EIO;
2876
2877 if ((size != 8) || (offset & 0x7))
2878 return -EIO;
2879
2880 return 0;
2881 }
2882
2883 static ssize_t
2884 netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2885 struct bin_attribute *attr,
2886 char *buf, loff_t offset, size_t size)
2887 {
2888 struct device *dev = container_of(kobj, struct device, kobj);
2889 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2890 u64 data;
2891 int ret;
2892
2893 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2894 if (ret != 0)
2895 return ret;
2896
2897 if (adapter->pci_mem_read(adapter, offset, &data))
2898 return -EIO;
2899
2900 memcpy(buf, &data, size);
2901
2902 return size;
2903 }
2904
2905 static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
2906 struct bin_attribute *attr, char *buf,
2907 loff_t offset, size_t size)
2908 {
2909 struct device *dev = container_of(kobj, struct device, kobj);
2910 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2911 u64 data;
2912 int ret;
2913
2914 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2915 if (ret != 0)
2916 return ret;
2917
2918 memcpy(&data, buf, size);
2919
2920 if (adapter->pci_mem_write(adapter, offset, data))
2921 return -EIO;
2922
2923 return size;
2924 }
2925
2926
2927 static struct bin_attribute bin_attr_crb = {
2928 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2929 .size = 0,
2930 .read = netxen_sysfs_read_crb,
2931 .write = netxen_sysfs_write_crb,
2932 };
2933
2934 static struct bin_attribute bin_attr_mem = {
2935 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2936 .size = 0,
2937 .read = netxen_sysfs_read_mem,
2938 .write = netxen_sysfs_write_mem,
2939 };
2940
2941 static ssize_t
2942 netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj,
2943 struct bin_attribute *attr,
2944 char *buf, loff_t offset, size_t size)
2945 {
2946 struct device *dev = container_of(kobj, struct device, kobj);
2947 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2948 struct net_device *netdev = adapter->netdev;
2949 struct netxen_dimm_cfg dimm;
2950 u8 dw, rows, cols, banks, ranks;
2951 u32 val;
2952
2953 if (size != sizeof(struct netxen_dimm_cfg)) {
2954 netdev_err(netdev, "Invalid size\n");
2955 return -1;
2956 }
2957
2958 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg));
2959 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY);
2960
2961 /* Checks if DIMM info is valid. */
2962 if (val & NETXEN_DIMM_VALID_FLAG) {
2963 netdev_err(netdev, "Invalid DIMM flag\n");
2964 dimm.presence = 0xff;
2965 goto out;
2966 }
2967
2968 rows = NETXEN_DIMM_NUMROWS(val);
2969 cols = NETXEN_DIMM_NUMCOLS(val);
2970 ranks = NETXEN_DIMM_NUMRANKS(val);
2971 banks = NETXEN_DIMM_NUMBANKS(val);
2972 dw = NETXEN_DIMM_DATAWIDTH(val);
2973
2974 dimm.presence = (val & NETXEN_DIMM_PRESENT);
2975
2976 /* Checks if DIMM info is present. */
2977 if (!dimm.presence) {
2978 netdev_err(netdev, "DIMM not present\n");
2979 goto out;
2980 }
2981
2982 dimm.dimm_type = NETXEN_DIMM_TYPE(val);
2983
2984 switch (dimm.dimm_type) {
2985 case NETXEN_DIMM_TYPE_RDIMM:
2986 case NETXEN_DIMM_TYPE_UDIMM:
2987 case NETXEN_DIMM_TYPE_SO_DIMM:
2988 case NETXEN_DIMM_TYPE_Micro_DIMM:
2989 case NETXEN_DIMM_TYPE_Mini_RDIMM:
2990 case NETXEN_DIMM_TYPE_Mini_UDIMM:
2991 break;
2992 default:
2993 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type);
2994 goto out;
2995 }
2996
2997 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM)
2998 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM;
2999 else
3000 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val);
3001
3002 if (val & NETXEN_DIMM_SIZE) {
3003 dimm.size = NETXEN_DIMM_STD_MEM_SIZE;
3004 goto out;
3005 }
3006
3007 if (!rows) {
3008 netdev_err(netdev, "Invalid no of rows %x\n", rows);
3009 goto out;
3010 }
3011
3012 if (!cols) {
3013 netdev_err(netdev, "Invalid no of columns %x\n", cols);
3014 goto out;
3015 }
3016
3017 if (!banks) {
3018 netdev_err(netdev, "Invalid no of banks %x\n", banks);
3019 goto out;
3020 }
3021
3022 ranks += 1;
3023
3024 switch (dw) {
3025 case 0x0:
3026 dw = 32;
3027 break;
3028 case 0x1:
3029 dw = 33;
3030 break;
3031 case 0x2:
3032 dw = 36;
3033 break;
3034 case 0x3:
3035 dw = 64;
3036 break;
3037 case 0x4:
3038 dw = 72;
3039 break;
3040 case 0x5:
3041 dw = 80;
3042 break;
3043 case 0x6:
3044 dw = 128;
3045 break;
3046 case 0x7:
3047 dw = 144;
3048 break;
3049 default:
3050 netdev_err(netdev, "Invalid data-width %x\n", dw);
3051 goto out;
3052 }
3053
3054 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8;
3055 /* Size returned in MB. */
3056 dimm.size = (dimm.size) / 0x100000;
3057 out:
3058 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg));
3059 return sizeof(struct netxen_dimm_cfg);
3060
3061 }
3062
3063 static struct bin_attribute bin_attr_dimm = {
3064 .attr = { .name = "dimm", .mode = (S_IRUGO | S_IWUSR) },
3065 .size = 0,
3066 .read = netxen_sysfs_read_dimm,
3067 };
3068
3069
3070 static void
3071 netxen_create_sysfs_entries(struct netxen_adapter *adapter)
3072 {
3073 struct device *dev = &adapter->pdev->dev;
3074
3075 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
3076 /* bridged_mode control */
3077 if (device_create_file(dev, &dev_attr_bridged_mode)) {
3078 dev_warn(dev,
3079 "failed to create bridged_mode sysfs entry\n");
3080 }
3081 }
3082 }
3083
3084 static void
3085 netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
3086 {
3087 struct device *dev = &adapter->pdev->dev;
3088
3089 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
3090 device_remove_file(dev, &dev_attr_bridged_mode);
3091 }
3092
3093 static void
3094 netxen_create_diag_entries(struct netxen_adapter *adapter)
3095 {
3096 struct pci_dev *pdev = adapter->pdev;
3097 struct device *dev;
3098
3099 dev = &pdev->dev;
3100 if (device_create_file(dev, &dev_attr_diag_mode))
3101 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3102 if (device_create_bin_file(dev, &bin_attr_crb))
3103 dev_info(dev, "failed to create crb sysfs entry\n");
3104 if (device_create_bin_file(dev, &bin_attr_mem))
3105 dev_info(dev, "failed to create mem sysfs entry\n");
3106 if (device_create_bin_file(dev, &bin_attr_dimm))
3107 dev_info(dev, "failed to create dimm sysfs entry\n");
3108 }
3109
3110
3111 static void
3112 netxen_remove_diag_entries(struct netxen_adapter *adapter)
3113 {
3114 struct pci_dev *pdev = adapter->pdev;
3115 struct device *dev = &pdev->dev;
3116
3117 device_remove_file(dev, &dev_attr_diag_mode);
3118 device_remove_bin_file(dev, &bin_attr_crb);
3119 device_remove_bin_file(dev, &bin_attr_mem);
3120 device_remove_bin_file(dev, &bin_attr_dimm);
3121 }
3122
3123 #ifdef CONFIG_INET
3124
3125 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
3126
3127 static int
3128 netxen_destip_supported(struct netxen_adapter *adapter)
3129 {
3130 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
3131 return 0;
3132
3133 if (adapter->ahw.cut_through)
3134 return 0;
3135
3136 return 1;
3137 }
3138
3139 static void
3140 netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
3141 {
3142 struct nx_ip_list *cur, *tmp_cur;
3143
3144 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) {
3145 if (master) {
3146 if (cur->master) {
3147 netxen_config_ipaddr(adapter, cur->ip_addr,
3148 NX_IP_DOWN);
3149 list_del(&cur->list);
3150 kfree(cur);
3151 }
3152 } else {
3153 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
3154 list_del(&cur->list);
3155 kfree(cur);
3156 }
3157 }
3158 }
3159
3160 static bool
3161 netxen_list_config_ip(struct netxen_adapter *adapter,
3162 struct in_ifaddr *ifa, unsigned long event)
3163 {
3164 struct net_device *dev;
3165 struct nx_ip_list *cur, *tmp_cur;
3166 struct list_head *head;
3167 bool ret = false;
3168
3169 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3170
3171 if (dev == NULL)
3172 goto out;
3173
3174 switch (event) {
3175 case NX_IP_UP:
3176 list_for_each(head, &adapter->ip_list) {
3177 cur = list_entry(head, struct nx_ip_list, list);
3178
3179 if (cur->ip_addr == ifa->ifa_address)
3180 goto out;
3181 }
3182
3183 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC);
3184 if (cur == NULL)
3185 goto out;
3186 if (dev->priv_flags & IFF_802_1Q_VLAN)
3187 dev = vlan_dev_real_dev(dev);
3188 cur->master = !!netif_is_bond_master(dev);
3189 cur->ip_addr = ifa->ifa_address;
3190 list_add_tail(&cur->list, &adapter->ip_list);
3191 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
3192 ret = true;
3193 break;
3194 case NX_IP_DOWN:
3195 list_for_each_entry_safe(cur, tmp_cur,
3196 &adapter->ip_list, list) {
3197 if (cur->ip_addr == ifa->ifa_address) {
3198 list_del(&cur->list);
3199 kfree(cur);
3200 netxen_config_ipaddr(adapter, ifa->ifa_address,
3201 NX_IP_DOWN);
3202 ret = true;
3203 break;
3204 }
3205 }
3206 }
3207 out:
3208 return ret;
3209 }
3210
3211 static void
3212 netxen_config_indev_addr(struct netxen_adapter *adapter,
3213 struct net_device *dev, unsigned long event)
3214 {
3215 struct in_device *indev;
3216
3217 if (!netxen_destip_supported(adapter))
3218 return;
3219
3220 indev = in_dev_get(dev);
3221 if (!indev)
3222 return;
3223
3224 for_ifa(indev) {
3225 switch (event) {
3226 case NETDEV_UP:
3227 netxen_list_config_ip(adapter, ifa, NX_IP_UP);
3228 break;
3229 case NETDEV_DOWN:
3230 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN);
3231 break;
3232 default:
3233 break;
3234 }
3235 } endfor_ifa(indev);
3236
3237 in_dev_put(indev);
3238 }
3239
3240 static void
3241 netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)
3242
3243 {
3244 struct netxen_adapter *adapter = netdev_priv(netdev);
3245 struct nx_ip_list *pos, *tmp_pos;
3246 unsigned long ip_event;
3247
3248 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3249 netxen_config_indev_addr(adapter, netdev, event);
3250
3251 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) {
3252 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
3253 }
3254 }
3255
3256 static inline bool
3257 netxen_config_checkdev(struct net_device *dev)
3258 {
3259 struct netxen_adapter *adapter;
3260
3261 if (!is_netxen_netdev(dev))
3262 return false;
3263 adapter = netdev_priv(dev);
3264 if (!adapter)
3265 return false;
3266 if (!netxen_destip_supported(adapter))
3267 return false;
3268 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3269 return false;
3270
3271 return true;
3272 }
3273
3274 /**
3275 * netxen_config_master - configure addresses based on master
3276 * @dev: netxen device
3277 * @event: netdev event
3278 */
3279 static void netxen_config_master(struct net_device *dev, unsigned long event)
3280 {
3281 struct net_device *master, *slave;
3282 struct netxen_adapter *adapter = netdev_priv(dev);
3283
3284 rcu_read_lock();
3285 master = netdev_master_upper_dev_get_rcu(dev);
3286 /*
3287 * This is the case where the netxen nic is being
3288 * enslaved and is dev_open()ed in bond_enslave()
3289 * Now we should program the bond's (and its vlans')
3290 * addresses in the netxen NIC.
3291 */
3292 if (master && netif_is_bond_master(master) &&
3293 !netif_is_bond_slave(dev)) {
3294 netxen_config_indev_addr(adapter, master, event);
3295 for_each_netdev_rcu(&init_net, slave)
3296 if (slave->priv_flags & IFF_802_1Q_VLAN &&
3297 vlan_dev_real_dev(slave) == master)
3298 netxen_config_indev_addr(adapter, slave, event);
3299 }
3300 rcu_read_unlock();
3301 /*
3302 * This is the case where the netxen nic is being
3303 * released and is dev_close()ed in bond_release()
3304 * just before IFF_BONDING is stripped.
3305 */
3306 if (!master && dev->priv_flags & IFF_BONDING)
3307 netxen_free_ip_list(adapter, true);
3308 }
3309
3310 static int netxen_netdev_event(struct notifier_block *this,
3311 unsigned long event, void *ptr)
3312 {
3313 struct netxen_adapter *adapter;
3314 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3315 struct net_device *orig_dev = dev;
3316 struct net_device *slave;
3317
3318 recheck:
3319 if (dev == NULL)
3320 goto done;
3321
3322 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3323 dev = vlan_dev_real_dev(dev);
3324 goto recheck;
3325 }
3326 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3327 /* If this is a bonding device, look for netxen-based slaves*/
3328 if (netif_is_bond_master(dev)) {
3329 rcu_read_lock();
3330 for_each_netdev_in_bond_rcu(dev, slave) {
3331 if (!netxen_config_checkdev(slave))
3332 continue;
3333 adapter = netdev_priv(slave);
3334 netxen_config_indev_addr(adapter,
3335 orig_dev, event);
3336 }
3337 rcu_read_unlock();
3338 } else {
3339 if (!netxen_config_checkdev(dev))
3340 goto done;
3341 adapter = netdev_priv(dev);
3342 /* Act only if the actual netxen is the target */
3343 if (orig_dev == dev)
3344 netxen_config_master(dev, event);
3345 netxen_config_indev_addr(adapter, orig_dev, event);
3346 }
3347 }
3348 done:
3349 return NOTIFY_DONE;
3350 }
3351
3352 static int
3353 netxen_inetaddr_event(struct notifier_block *this,
3354 unsigned long event, void *ptr)
3355 {
3356 struct netxen_adapter *adapter;
3357 struct net_device *dev, *slave;
3358 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3359 unsigned long ip_event;
3360
3361 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3362 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3363 recheck:
3364 if (dev == NULL)
3365 goto done;
3366
3367 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3368 dev = vlan_dev_real_dev(dev);
3369 goto recheck;
3370 }
3371 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3372 /* If this is a bonding device, look for netxen-based slaves*/
3373 if (netif_is_bond_master(dev)) {
3374 rcu_read_lock();
3375 for_each_netdev_in_bond_rcu(dev, slave) {
3376 if (!netxen_config_checkdev(slave))
3377 continue;
3378 adapter = netdev_priv(slave);
3379 netxen_list_config_ip(adapter, ifa, ip_event);
3380 }
3381 rcu_read_unlock();
3382 } else {
3383 if (!netxen_config_checkdev(dev))
3384 goto done;
3385 adapter = netdev_priv(dev);
3386 netxen_list_config_ip(adapter, ifa, ip_event);
3387 }
3388 }
3389 done:
3390 return NOTIFY_DONE;
3391 }
3392
3393 static struct notifier_block netxen_netdev_cb = {
3394 .notifier_call = netxen_netdev_event,
3395 };
3396
3397 static struct notifier_block netxen_inetaddr_cb = {
3398 .notifier_call = netxen_inetaddr_event,
3399 };
3400 #else
3401 static void
3402 netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
3403 { }
3404 static void
3405 netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
3406 { }
3407 #endif
3408
3409 static const struct pci_error_handlers netxen_err_handler = {
3410 .error_detected = netxen_io_error_detected,
3411 .slot_reset = netxen_io_slot_reset,
3412 .resume = netxen_io_resume,
3413 };
3414
3415 static struct pci_driver netxen_driver = {
3416 .name = netxen_nic_driver_name,
3417 .id_table = netxen_pci_tbl,
3418 .probe = netxen_nic_probe,
3419 .remove = netxen_nic_remove,
3420 #ifdef CONFIG_PM
3421 .suspend = netxen_nic_suspend,
3422 .resume = netxen_nic_resume,
3423 #endif
3424 .shutdown = netxen_nic_shutdown,
3425 .err_handler = &netxen_err_handler
3426 };
3427
3428 static int __init netxen_init_module(void)
3429 {
3430 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
3431
3432 #ifdef CONFIG_INET
3433 register_netdevice_notifier(&netxen_netdev_cb);
3434 register_inetaddr_notifier(&netxen_inetaddr_cb);
3435 #endif
3436 return pci_register_driver(&netxen_driver);
3437 }
3438
3439 module_init(netxen_init_module);
3440
3441 static void __exit netxen_exit_module(void)
3442 {
3443 pci_unregister_driver(&netxen_driver);
3444
3445 #ifdef CONFIG_INET
3446 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
3447 unregister_netdevice_notifier(&netxen_netdev_cb);
3448 #endif
3449 }
3450
3451 module_exit(netxen_exit_module);
Linux kernel - Deliverables
This page took 0.102982 seconds and 5 git commands to generate.