projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
net: ethernet: replace strict_strtoul() with kstrtoul()
[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 inline bool netxen_function_zero(struct pci_dev *pdev)
596 {
597 return (PCI_FUNC(pdev->devfn) == 0) ? true : false;
598 }
599
600 static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter,
601 u32 mode)
602 {
603 NXWR32(adapter, NETXEN_INTR_MODE_REG, mode);
604 }
605
606 static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter)
607 {
608 return NXRD32(adapter, NETXEN_INTR_MODE_REG);
609 }
610
611 static void
612 netxen_initialize_interrupt_registers(struct netxen_adapter *adapter)
613 {
614 struct netxen_legacy_intr_set *legacy_intrp;
615 u32 tgt_status_reg, int_state_reg;
616
617 if (adapter->ahw.revision_id >= NX_P3_B0)
618 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
619 else
620 legacy_intrp = &legacy_intr[0];
621
622 tgt_status_reg = legacy_intrp->tgt_status_reg;
623 int_state_reg = ISR_INT_STATE_REG;
624
625 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
626 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg);
627 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
628 legacy_intrp->tgt_mask_reg);
629 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
630 legacy_intrp->pci_int_reg);
631 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
632
633 if (adapter->ahw.revision_id >= NX_P3_B1)
634 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
635 int_state_reg);
636 else
637 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
638 CRB_INT_VECTOR);
639 }
640
641 static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter,
642 int num_msix)
643 {
644 struct pci_dev *pdev = adapter->pdev;
645 u32 value;
646 int err;
647
648 if (adapter->msix_supported) {
649 netxen_init_msix_entries(adapter, num_msix);
650 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
651 if (err == 0) {
652 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
653 netxen_set_msix_bit(pdev, 1);
654
655 if (adapter->rss_supported)
656 adapter->max_sds_rings = num_msix;
657
658 dev_info(&pdev->dev, "using msi-x interrupts\n");
659 return 0;
660 }
661 /* fall through for msi */
662 }
663
664 if (use_msi && !pci_enable_msi(pdev)) {
665 value = msi_tgt_status[adapter->ahw.pci_func];
666 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
667 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value);
668 adapter->msix_entries[0].vector = pdev->irq;
669 dev_info(&pdev->dev, "using msi interrupts\n");
670 return 0;
671 }
672
673 dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n");
674 return -EIO;
675 }
676
677 static int netxen_setup_intr(struct netxen_adapter *adapter)
678 {
679 struct pci_dev *pdev = adapter->pdev;
680 int num_msix;
681
682 if (adapter->rss_supported)
683 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
684 MSIX_ENTRIES_PER_ADAPTER : 2;
685 else
686 num_msix = 1;
687
688 adapter->max_sds_rings = 1;
689 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
690
691 netxen_initialize_interrupt_registers(adapter);
692 netxen_set_msix_bit(pdev, 0);
693
694 if (netxen_function_zero(pdev)) {
695 if (!netxen_setup_msi_interrupts(adapter, num_msix))
696 netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE);
697 else
698 netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE);
699 } else {
700 if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE &&
701 netxen_setup_msi_interrupts(adapter, num_msix)) {
702 dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n");
703 return -EIO;
704 }
705 }
706
707 if (!NETXEN_IS_MSI_FAMILY(adapter)) {
708 adapter->msix_entries[0].vector = pdev->irq;
709 dev_info(&pdev->dev, "using legacy interrupts\n");
710 }
711 return 0;
712 }
713
714 static void
715 netxen_teardown_intr(struct netxen_adapter *adapter)
716 {
717 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
718 pci_disable_msix(adapter->pdev);
719 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
720 pci_disable_msi(adapter->pdev);
721 }
722
723 static void
724 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
725 {
726 if (adapter->ahw.db_base != NULL)
727 iounmap(adapter->ahw.db_base);
728 if (adapter->ahw.pci_base0 != NULL)
729 iounmap(adapter->ahw.pci_base0);
730 if (adapter->ahw.pci_base1 != NULL)
731 iounmap(adapter->ahw.pci_base1);
732 if (adapter->ahw.pci_base2 != NULL)
733 iounmap(adapter->ahw.pci_base2);
734 }
735
736 static int
737 netxen_setup_pci_map(struct netxen_adapter *adapter)
738 {
739 void __iomem *db_ptr = NULL;
740
741 resource_size_t mem_base, db_base;
742 unsigned long mem_len, db_len = 0;
743
744 struct pci_dev *pdev = adapter->pdev;
745 int pci_func = adapter->ahw.pci_func;
746 struct netxen_hardware_context *ahw = &adapter->ahw;
747
748 int err = 0;
749
750 /*
751 * Set the CRB window to invalid. If any register in window 0 is
752 * accessed it should set the window to 0 and then reset it to 1.
753 */
754 adapter->ahw.crb_win = -1;
755 adapter->ahw.ocm_win = -1;
756
757 /* remap phys address */
758 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
759 mem_len = pci_resource_len(pdev, 0);
760
761 /* 128 Meg of memory */
762 if (mem_len == NETXEN_PCI_128MB_SIZE) {
763
764 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
765 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
766 SECOND_PAGE_GROUP_SIZE);
767 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
768 THIRD_PAGE_GROUP_SIZE);
769 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
770 ahw->pci_base2 == NULL) {
771 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
772 err = -EIO;
773 goto err_out;
774 }
775
776 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
777
778 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
779
780 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
781 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
782 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
783 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
784 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
785 err = -EIO;
786 goto err_out;
787 }
788
789 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
790
791 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
792 if (ahw->pci_base0 == NULL) {
793 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
794 return -EIO;
795 }
796 ahw->pci_len0 = mem_len;
797 } else {
798 return -EIO;
799 }
800
801 netxen_setup_hwops(adapter);
802
803 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
804
805 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
806 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
807 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
808
809 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
810 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
811 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
812 }
813
814 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
815 goto skip_doorbell;
816
817 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
818 db_len = pci_resource_len(pdev, 4);
819
820 if (db_len == 0) {
821 printk(KERN_ERR "%s: doorbell is disabled\n",
822 netxen_nic_driver_name);
823 err = -EIO;
824 goto err_out;
825 }
826
827 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
828 if (!db_ptr) {
829 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
830 netxen_nic_driver_name);
831 err = -EIO;
832 goto err_out;
833 }
834
835 skip_doorbell:
836 adapter->ahw.db_base = db_ptr;
837 adapter->ahw.db_len = db_len;
838 return 0;
839
840 err_out:
841 netxen_cleanup_pci_map(adapter);
842 return err;
843 }
844
845 static void
846 netxen_check_options(struct netxen_adapter *adapter)
847 {
848 u32 fw_major, fw_minor, fw_build, prev_fw_version;
849 char brd_name[NETXEN_MAX_SHORT_NAME];
850 char serial_num[32];
851 int i, offset, val, err;
852 __le32 *ptr32;
853 struct pci_dev *pdev = adapter->pdev;
854
855 adapter->driver_mismatch = 0;
856
857 ptr32 = (__le32 *)&serial_num;
858 offset = NX_FW_SERIAL_NUM_OFFSET;
859 for (i = 0; i < 8; i++) {
860 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
861 dev_err(&pdev->dev, "error reading board info\n");
862 adapter->driver_mismatch = 1;
863 return;
864 }
865 ptr32[i] = cpu_to_le32(val);
866 offset += sizeof(u32);
867 }
868
869 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
870 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
871 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
872 prev_fw_version = adapter->fw_version;
873 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
874
875 /* Get FW Mini Coredump template and store it */
876 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
877 if (adapter->mdump.md_template == NULL ||
878 adapter->fw_version > prev_fw_version) {
879 kfree(adapter->mdump.md_template);
880 adapter->mdump.md_template = NULL;
881 err = netxen_setup_minidump(adapter);
882 if (err)
883 dev_err(&adapter->pdev->dev,
884 "Failed to setup minidump rcode = %d\n", err);
885 }
886 }
887
888 if (adapter->portnum == 0) {
889 if (netxen_nic_get_brd_name_by_type(adapter->ahw.board_type,
890 brd_name))
891 strcpy(serial_num, "Unknown");
892
893 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
894 module_name(THIS_MODULE),
895 brd_name, serial_num, adapter->ahw.revision_id);
896 }
897
898 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
899 adapter->driver_mismatch = 1;
900 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
901 fw_major, fw_minor, fw_build);
902 return;
903 }
904
905 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
906 i = NXRD32(adapter, NETXEN_SRE_MISC);
907 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
908 }
909
910 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n",
911 NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build,
912 adapter->ahw.cut_through ? "cut-through" : "legacy");
913
914 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
915 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
916
917 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
918 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
919 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
920 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
921 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
922 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
923 }
924
925 adapter->msix_supported = 0;
926 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
927 adapter->msix_supported = !!use_msi_x;
928 adapter->rss_supported = !!use_msi_x;
929 } else {
930 u32 flashed_ver = 0;
931 netxen_rom_fast_read(adapter,
932 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
933 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
934
935 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
936 switch (adapter->ahw.board_type) {
937 case NETXEN_BRDTYPE_P2_SB31_10G:
938 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
939 adapter->msix_supported = !!use_msi_x;
940 adapter->rss_supported = !!use_msi_x;
941 break;
942 default:
943 break;
944 }
945 }
946 }
947
948 adapter->num_txd = MAX_CMD_DESCRIPTORS;
949
950 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
951 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
952 adapter->max_rds_rings = 3;
953 } else {
954 adapter->num_lro_rxd = 0;
955 adapter->max_rds_rings = 2;
956 }
957 }
958
959 static int
960 netxen_start_firmware(struct netxen_adapter *adapter)
961 {
962 int val, err, first_boot;
963 struct pci_dev *pdev = adapter->pdev;
964
965 /* required for NX2031 dummy dma */
966 err = nx_set_dma_mask(adapter);
967 if (err)
968 return err;
969
970 err = netxen_can_start_firmware(adapter);
971
972 if (err < 0)
973 return err;
974
975 if (!err)
976 goto wait_init;
977
978 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
979
980 err = netxen_check_hw_init(adapter, first_boot);
981 if (err) {
982 dev_err(&pdev->dev, "error in init HW init sequence\n");
983 return err;
984 }
985
986 netxen_request_firmware(adapter);
987
988 err = netxen_need_fw_reset(adapter);
989 if (err < 0)
990 goto err_out;
991 if (err == 0)
992 goto pcie_strap_init;
993
994 if (first_boot != 0x55555555) {
995 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
996 netxen_pinit_from_rom(adapter);
997 msleep(1);
998 }
999
1000 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
1001 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
1002 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
1003
1004 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1005 netxen_set_port_mode(adapter);
1006
1007 err = netxen_load_firmware(adapter);
1008 if (err)
1009 goto err_out;
1010
1011 netxen_release_firmware(adapter);
1012
1013 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1014
1015 /* Initialize multicast addr pool owners */
1016 val = 0x7654;
1017 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
1018 val |= 0x0f000000;
1019 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
1020
1021 }
1022
1023 err = netxen_init_dummy_dma(adapter);
1024 if (err)
1025 goto err_out;
1026
1027 /*
1028 * Tell the hardware our version number.
1029 */
1030 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
1031 | ((_NETXEN_NIC_LINUX_MINOR << 8))
1032 | (_NETXEN_NIC_LINUX_SUBVERSION);
1033 NXWR32(adapter, CRB_DRIVER_VERSION, val);
1034
1035 pcie_strap_init:
1036 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1037 netxen_pcie_strap_init(adapter);
1038
1039 wait_init:
1040 /* Handshake with the card before we register the devices. */
1041 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
1042 if (err) {
1043 netxen_free_dummy_dma(adapter);
1044 goto err_out;
1045 }
1046
1047 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
1048
1049 nx_update_dma_mask(adapter);
1050
1051 netxen_check_options(adapter);
1052
1053 adapter->need_fw_reset = 0;
1054
1055 /* fall through and release firmware */
1056
1057 err_out:
1058 netxen_release_firmware(adapter);
1059 return err;
1060 }
1061
1062 static int
1063 netxen_nic_request_irq(struct netxen_adapter *adapter)
1064 {
1065 irq_handler_t handler;
1066 struct nx_host_sds_ring *sds_ring;
1067 int err, ring;
1068
1069 unsigned long flags = 0;
1070 struct net_device *netdev = adapter->netdev;
1071 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1072
1073 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
1074 handler = netxen_msix_intr;
1075 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
1076 handler = netxen_msi_intr;
1077 else {
1078 flags |= IRQF_SHARED;
1079 handler = netxen_intr;
1080 }
1081 adapter->irq = netdev->irq;
1082
1083 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1084 sds_ring = &recv_ctx->sds_rings[ring];
1085 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1086 err = request_irq(sds_ring->irq, handler,
1087 flags, sds_ring->name, sds_ring);
1088 if (err)
1089 return err;
1090 }
1091
1092 return 0;
1093 }
1094
1095 static void
1096 netxen_nic_free_irq(struct netxen_adapter *adapter)
1097 {
1098 int ring;
1099 struct nx_host_sds_ring *sds_ring;
1100
1101 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1102
1103 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1104 sds_ring = &recv_ctx->sds_rings[ring];
1105 free_irq(sds_ring->irq, sds_ring);
1106 }
1107 }
1108
1109 static void
1110 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
1111 {
1112 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
1113 adapter->coal.normal.data.rx_time_us =
1114 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
1115 adapter->coal.normal.data.rx_packets =
1116 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
1117 adapter->coal.normal.data.tx_time_us =
1118 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
1119 adapter->coal.normal.data.tx_packets =
1120 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
1121 }
1122
1123 /* with rtnl_lock */
1124 static int
1125 __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1126 {
1127 int err;
1128
1129 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1130 return -EIO;
1131
1132 err = adapter->init_port(adapter, adapter->physical_port);
1133 if (err) {
1134 printk(KERN_ERR "%s: Failed to initialize port %d\n",
1135 netxen_nic_driver_name, adapter->portnum);
1136 return err;
1137 }
1138 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1139 adapter->macaddr_set(adapter, adapter->mac_addr);
1140
1141 adapter->set_multi(netdev);
1142 adapter->set_mtu(adapter, netdev->mtu);
1143
1144 adapter->ahw.linkup = 0;
1145
1146 if (adapter->max_sds_rings > 1)
1147 netxen_config_rss(adapter, 1);
1148
1149 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1150 netxen_config_intr_coalesce(adapter);
1151
1152 if (netdev->features & NETIF_F_LRO)
1153 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
1154
1155 netxen_napi_enable(adapter);
1156
1157 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1158 netxen_linkevent_request(adapter, 1);
1159 else
1160 netxen_nic_set_link_parameters(adapter);
1161
1162 set_bit(__NX_DEV_UP, &adapter->state);
1163 return 0;
1164 }
1165
1166 /* Usage: During resume and firmware recovery module.*/
1167
1168 static inline int
1169 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1170 {
1171 int err = 0;
1172
1173 rtnl_lock();
1174 if (netif_running(netdev))
1175 err = __netxen_nic_up(adapter, netdev);
1176 rtnl_unlock();
1177
1178 return err;
1179 }
1180
1181 /* with rtnl_lock */
1182 static void
1183 __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1184 {
1185 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1186 return;
1187
1188 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1189 return;
1190
1191 smp_mb();
1192 spin_lock(&adapter->tx_clean_lock);
1193 netif_carrier_off(netdev);
1194 netif_tx_disable(netdev);
1195
1196 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1197 netxen_linkevent_request(adapter, 0);
1198
1199 if (adapter->stop_port)
1200 adapter->stop_port(adapter);
1201
1202 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1203 netxen_p3_free_mac_list(adapter);
1204
1205 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1206
1207 netxen_napi_disable(adapter);
1208
1209 netxen_release_tx_buffers(adapter);
1210 spin_unlock(&adapter->tx_clean_lock);
1211 }
1212
1213 /* Usage: During suspend and firmware recovery module */
1214
1215 static inline void
1216 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1217 {
1218 rtnl_lock();
1219 if (netif_running(netdev))
1220 __netxen_nic_down(adapter, netdev);
1221 rtnl_unlock();
1222
1223 }
1224
1225 static int
1226 netxen_nic_attach(struct netxen_adapter *adapter)
1227 {
1228 struct net_device *netdev = adapter->netdev;
1229 struct pci_dev *pdev = adapter->pdev;
1230 int err, ring;
1231 struct nx_host_rds_ring *rds_ring;
1232 struct nx_host_tx_ring *tx_ring;
1233 u32 capab2;
1234
1235 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1236 return 0;
1237
1238 err = netxen_init_firmware(adapter);
1239 if (err)
1240 return err;
1241
1242 adapter->flags &= ~NETXEN_FW_MSS_CAP;
1243 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) {
1244 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2);
1245 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1246 adapter->flags |= NETXEN_FW_MSS_CAP;
1247 }
1248
1249 err = netxen_napi_add(adapter, netdev);
1250 if (err)
1251 return err;
1252
1253 err = netxen_alloc_sw_resources(adapter);
1254 if (err) {
1255 printk(KERN_ERR "%s: Error in setting sw resources\n",
1256 netdev->name);
1257 return err;
1258 }
1259
1260 err = netxen_alloc_hw_resources(adapter);
1261 if (err) {
1262 printk(KERN_ERR "%s: Error in setting hw resources\n",
1263 netdev->name);
1264 goto err_out_free_sw;
1265 }
1266
1267 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1268 tx_ring = adapter->tx_ring;
1269 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1270 crb_cmd_producer[adapter->portnum]);
1271 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1272 crb_cmd_consumer[adapter->portnum]);
1273
1274 tx_ring->producer = 0;
1275 tx_ring->sw_consumer = 0;
1276
1277 netxen_nic_update_cmd_producer(adapter, tx_ring);
1278 netxen_nic_update_cmd_consumer(adapter, tx_ring);
1279 }
1280
1281 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1282 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1283 netxen_post_rx_buffers(adapter, ring, rds_ring);
1284 }
1285
1286 err = netxen_nic_request_irq(adapter);
1287 if (err) {
1288 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1289 netdev->name);
1290 goto err_out_free_rxbuf;
1291 }
1292
1293 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1294 netxen_nic_init_coalesce_defaults(adapter);
1295
1296 netxen_create_sysfs_entries(adapter);
1297
1298 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1299 return 0;
1300
1301 err_out_free_rxbuf:
1302 netxen_release_rx_buffers(adapter);
1303 netxen_free_hw_resources(adapter);
1304 err_out_free_sw:
1305 netxen_free_sw_resources(adapter);
1306 return err;
1307 }
1308
1309 static void
1310 netxen_nic_detach(struct netxen_adapter *adapter)
1311 {
1312 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1313 return;
1314
1315 netxen_remove_sysfs_entries(adapter);
1316
1317 netxen_free_hw_resources(adapter);
1318 netxen_release_rx_buffers(adapter);
1319 netxen_nic_free_irq(adapter);
1320 netxen_napi_del(adapter);
1321 netxen_free_sw_resources(adapter);
1322
1323 adapter->is_up = 0;
1324 }
1325
1326 int
1327 netxen_nic_reset_context(struct netxen_adapter *adapter)
1328 {
1329 int err = 0;
1330 struct net_device *netdev = adapter->netdev;
1331
1332 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1333 return -EBUSY;
1334
1335 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1336
1337 netif_device_detach(netdev);
1338
1339 if (netif_running(netdev))
1340 __netxen_nic_down(adapter, netdev);
1341
1342 netxen_nic_detach(adapter);
1343
1344 if (netif_running(netdev)) {
1345 err = netxen_nic_attach(adapter);
1346 if (!err)
1347 err = __netxen_nic_up(adapter, netdev);
1348
1349 if (err)
1350 goto done;
1351 }
1352
1353 netif_device_attach(netdev);
1354 }
1355
1356 done:
1357 clear_bit(__NX_RESETTING, &adapter->state);
1358 return err;
1359 }
1360
1361 static int
1362 netxen_setup_netdev(struct netxen_adapter *adapter,
1363 struct net_device *netdev)
1364 {
1365 int err = 0;
1366 struct pci_dev *pdev = adapter->pdev;
1367
1368 adapter->mc_enabled = 0;
1369 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1370 adapter->max_mc_count = 38;
1371 else
1372 adapter->max_mc_count = 16;
1373
1374 netdev->netdev_ops = &netxen_netdev_ops;
1375 netdev->watchdog_timeo = 5*HZ;
1376
1377 netxen_nic_change_mtu(netdev, netdev->mtu);
1378
1379 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1380
1381 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
1382 NETIF_F_RXCSUM;
1383
1384 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1385 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1386
1387 netdev->vlan_features |= netdev->hw_features;
1388
1389 if (adapter->pci_using_dac) {
1390 netdev->features |= NETIF_F_HIGHDMA;
1391 netdev->vlan_features |= NETIF_F_HIGHDMA;
1392 }
1393
1394 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1395 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
1396
1397 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1398 netdev->hw_features |= NETIF_F_LRO;
1399
1400 netdev->features |= netdev->hw_features;
1401
1402 netdev->irq = adapter->msix_entries[0].vector;
1403
1404 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1405
1406 if (netxen_read_mac_addr(adapter))
1407 dev_warn(&pdev->dev, "failed to read mac addr\n");
1408
1409 netif_carrier_off(netdev);
1410
1411 err = register_netdev(netdev);
1412 if (err) {
1413 dev_err(&pdev->dev, "failed to register net device\n");
1414 return err;
1415 }
1416
1417 return 0;
1418 }
1419
1420 #ifdef CONFIG_PCIEAER
1421 static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1422 {
1423 struct pci_dev *pdev = adapter->pdev;
1424 struct pci_dev *root = pdev->bus->self;
1425 u32 aer_pos;
1426
1427 /* root bus? */
1428 if (!root)
1429 return;
1430
1431 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1432 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1433 return;
1434
1435 if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT)
1436 return;
1437
1438 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1439 if (!aer_pos)
1440 return;
1441
1442 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1443 }
1444 #endif
1445
1446 static int
1447 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1448 {
1449 struct net_device *netdev = NULL;
1450 struct netxen_adapter *adapter = NULL;
1451 int i = 0, err;
1452 int pci_func_id = PCI_FUNC(pdev->devfn);
1453 uint8_t revision_id;
1454 u32 val;
1455
1456 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1457 pr_warning("%s: chip revisions between 0x%x-0x%x "
1458 "will not be enabled.\n",
1459 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
1460 return -ENODEV;
1461 }
1462
1463 if ((err = pci_enable_device(pdev)))
1464 return err;
1465
1466 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1467 err = -ENODEV;
1468 goto err_out_disable_pdev;
1469 }
1470
1471 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1472 goto err_out_disable_pdev;
1473
1474 if (NX_IS_REVISION_P3(pdev->revision))
1475 pci_enable_pcie_error_reporting(pdev);
1476
1477 pci_set_master(pdev);
1478
1479 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1480 if(!netdev) {
1481 err = -ENOMEM;
1482 goto err_out_free_res;
1483 }
1484
1485 SET_NETDEV_DEV(netdev, &pdev->dev);
1486
1487 adapter = netdev_priv(netdev);
1488 adapter->netdev = netdev;
1489 adapter->pdev = pdev;
1490 adapter->ahw.pci_func = pci_func_id;
1491
1492 revision_id = pdev->revision;
1493 adapter->ahw.revision_id = revision_id;
1494
1495 rwlock_init(&adapter->ahw.crb_lock);
1496 spin_lock_init(&adapter->ahw.mem_lock);
1497
1498 spin_lock_init(&adapter->tx_clean_lock);
1499 INIT_LIST_HEAD(&adapter->mac_list);
1500 INIT_LIST_HEAD(&adapter->ip_list);
1501
1502 err = netxen_setup_pci_map(adapter);
1503 if (err)
1504 goto err_out_free_netdev;
1505
1506 /* This will be reset for mezz cards */
1507 adapter->portnum = pci_func_id;
1508
1509 err = netxen_nic_get_board_info(adapter);
1510 if (err) {
1511 dev_err(&pdev->dev, "Error getting board config info.\n");
1512 goto err_out_iounmap;
1513 }
1514
1515 #ifdef CONFIG_PCIEAER
1516 netxen_mask_aer_correctable(adapter);
1517 #endif
1518
1519 /* Mezz cards have PCI function 0,2,3 enabled */
1520 switch (adapter->ahw.board_type) {
1521 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1522 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1523 if (pci_func_id >= 2)
1524 adapter->portnum = pci_func_id - 2;
1525 break;
1526 default:
1527 break;
1528 }
1529
1530 err = netxen_check_flash_fw_compatibility(adapter);
1531 if (err)
1532 goto err_out_iounmap;
1533
1534 if (adapter->portnum == 0) {
1535 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1536 if (val != 0xffffffff && val != 0) {
1537 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1538 adapter->need_fw_reset = 1;
1539 }
1540 }
1541
1542 err = netxen_start_firmware(adapter);
1543 if (err)
1544 goto err_out_decr_ref;
1545
1546 /*
1547 * See if the firmware gave us a virtual-physical port mapping.
1548 */
1549 adapter->physical_port = adapter->portnum;
1550 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1551 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1552 if (i != 0x55555555)
1553 adapter->physical_port = i;
1554 }
1555
1556 netxen_nic_clear_stats(adapter);
1557
1558 err = netxen_setup_intr(adapter);
1559
1560 if (err) {
1561 dev_err(&adapter->pdev->dev,
1562 "Failed to setup interrupts, error = %d\n", err);
1563 goto err_out_disable_msi;
1564 }
1565
1566 err = netxen_setup_netdev(adapter, netdev);
1567 if (err)
1568 goto err_out_disable_msi;
1569
1570 pci_set_drvdata(pdev, adapter);
1571
1572 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1573
1574 switch (adapter->ahw.port_type) {
1575 case NETXEN_NIC_GBE:
1576 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1577 adapter->netdev->name);
1578 break;
1579 case NETXEN_NIC_XGBE:
1580 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1581 adapter->netdev->name);
1582 break;
1583 }
1584
1585 netxen_create_diag_entries(adapter);
1586
1587 return 0;
1588
1589 err_out_disable_msi:
1590 netxen_teardown_intr(adapter);
1591
1592 netxen_free_dummy_dma(adapter);
1593
1594 err_out_decr_ref:
1595 nx_decr_dev_ref_cnt(adapter);
1596
1597 err_out_iounmap:
1598 netxen_cleanup_pci_map(adapter);
1599
1600 err_out_free_netdev:
1601 free_netdev(netdev);
1602
1603 err_out_free_res:
1604 pci_release_regions(pdev);
1605
1606 err_out_disable_pdev:
1607 pci_set_drvdata(pdev, NULL);
1608 pci_disable_device(pdev);
1609 return err;
1610 }
1611
1612 static
1613 void netxen_cleanup_minidump(struct netxen_adapter *adapter)
1614 {
1615 kfree(adapter->mdump.md_template);
1616 adapter->mdump.md_template = NULL;
1617
1618 if (adapter->mdump.md_capture_buff) {
1619 vfree(adapter->mdump.md_capture_buff);
1620 adapter->mdump.md_capture_buff = NULL;
1621 }
1622 }
1623
1624 static void netxen_nic_remove(struct pci_dev *pdev)
1625 {
1626 struct netxen_adapter *adapter;
1627 struct net_device *netdev;
1628
1629 adapter = pci_get_drvdata(pdev);
1630 if (adapter == NULL)
1631 return;
1632
1633 netdev = adapter->netdev;
1634
1635 netxen_cancel_fw_work(adapter);
1636
1637 unregister_netdev(netdev);
1638
1639 cancel_work_sync(&adapter->tx_timeout_task);
1640
1641 netxen_free_ip_list(adapter, false);
1642 netxen_nic_detach(adapter);
1643
1644 nx_decr_dev_ref_cnt(adapter);
1645
1646 if (adapter->portnum == 0)
1647 netxen_free_dummy_dma(adapter);
1648
1649 clear_bit(__NX_RESETTING, &adapter->state);
1650
1651 netxen_teardown_intr(adapter);
1652 netxen_set_interrupt_mode(adapter, 0);
1653 netxen_remove_diag_entries(adapter);
1654
1655 netxen_cleanup_pci_map(adapter);
1656
1657 netxen_release_firmware(adapter);
1658
1659 if (NX_IS_REVISION_P3(pdev->revision)) {
1660 netxen_cleanup_minidump(adapter);
1661 pci_disable_pcie_error_reporting(pdev);
1662 }
1663
1664 pci_release_regions(pdev);
1665 pci_disable_device(pdev);
1666 pci_set_drvdata(pdev, NULL);
1667
1668 free_netdev(netdev);
1669 }
1670
1671 static void netxen_nic_detach_func(struct netxen_adapter *adapter)
1672 {
1673 struct net_device *netdev = adapter->netdev;
1674
1675 netif_device_detach(netdev);
1676
1677 netxen_cancel_fw_work(adapter);
1678
1679 if (netif_running(netdev))
1680 netxen_nic_down(adapter, netdev);
1681
1682 cancel_work_sync(&adapter->tx_timeout_task);
1683
1684 netxen_nic_detach(adapter);
1685
1686 if (adapter->portnum == 0)
1687 netxen_free_dummy_dma(adapter);
1688
1689 nx_decr_dev_ref_cnt(adapter);
1690
1691 clear_bit(__NX_RESETTING, &adapter->state);
1692 }
1693
1694 static int netxen_nic_attach_func(struct pci_dev *pdev)
1695 {
1696 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1697 struct net_device *netdev = adapter->netdev;
1698 int err;
1699
1700 err = pci_enable_device(pdev);
1701 if (err)
1702 return err;
1703
1704 pci_set_power_state(pdev, PCI_D0);
1705 pci_set_master(pdev);
1706 pci_restore_state(pdev);
1707
1708 adapter->ahw.crb_win = -1;
1709 adapter->ahw.ocm_win = -1;
1710
1711 err = netxen_start_firmware(adapter);
1712 if (err) {
1713 dev_err(&pdev->dev, "failed to start firmware\n");
1714 return err;
1715 }
1716
1717 if (netif_running(netdev)) {
1718 err = netxen_nic_attach(adapter);
1719 if (err)
1720 goto err_out;
1721
1722 err = netxen_nic_up(adapter, netdev);
1723 if (err)
1724 goto err_out_detach;
1725
1726 netxen_restore_indev_addr(netdev, NETDEV_UP);
1727 }
1728
1729 netif_device_attach(netdev);
1730 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1731 return 0;
1732
1733 err_out_detach:
1734 netxen_nic_detach(adapter);
1735 err_out:
1736 nx_decr_dev_ref_cnt(adapter);
1737 return err;
1738 }
1739
1740 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1741 pci_channel_state_t state)
1742 {
1743 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1744
1745 if (state == pci_channel_io_perm_failure)
1746 return PCI_ERS_RESULT_DISCONNECT;
1747
1748 if (nx_dev_request_aer(adapter))
1749 return PCI_ERS_RESULT_RECOVERED;
1750
1751 netxen_nic_detach_func(adapter);
1752
1753 pci_disable_device(pdev);
1754
1755 return PCI_ERS_RESULT_NEED_RESET;
1756 }
1757
1758 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1759 {
1760 int err = 0;
1761
1762 err = netxen_nic_attach_func(pdev);
1763
1764 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1765 }
1766
1767 static void netxen_io_resume(struct pci_dev *pdev)
1768 {
1769 pci_cleanup_aer_uncorrect_error_status(pdev);
1770 }
1771
1772 static void netxen_nic_shutdown(struct pci_dev *pdev)
1773 {
1774 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1775
1776 netxen_nic_detach_func(adapter);
1777
1778 if (pci_save_state(pdev))
1779 return;
1780
1781 if (netxen_nic_wol_supported(adapter)) {
1782 pci_enable_wake(pdev, PCI_D3cold, 1);
1783 pci_enable_wake(pdev, PCI_D3hot, 1);
1784 }
1785
1786 pci_disable_device(pdev);
1787 }
1788
1789 #ifdef CONFIG_PM
1790 static int
1791 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1792 {
1793 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1794 int retval;
1795
1796 netxen_nic_detach_func(adapter);
1797
1798 retval = pci_save_state(pdev);
1799 if (retval)
1800 return retval;
1801
1802 if (netxen_nic_wol_supported(adapter)) {
1803 pci_enable_wake(pdev, PCI_D3cold, 1);
1804 pci_enable_wake(pdev, PCI_D3hot, 1);
1805 }
1806
1807 pci_disable_device(pdev);
1808 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1809
1810 return 0;
1811 }
1812
1813 static int
1814 netxen_nic_resume(struct pci_dev *pdev)
1815 {
1816 return netxen_nic_attach_func(pdev);
1817 }
1818 #endif
1819
1820 static int netxen_nic_open(struct net_device *netdev)
1821 {
1822 struct netxen_adapter *adapter = netdev_priv(netdev);
1823 int err = 0;
1824
1825 if (adapter->driver_mismatch)
1826 return -EIO;
1827
1828 err = netxen_nic_attach(adapter);
1829 if (err)
1830 return err;
1831
1832 err = __netxen_nic_up(adapter, netdev);
1833 if (err)
1834 goto err_out;
1835
1836 netif_start_queue(netdev);
1837
1838 return 0;
1839
1840 err_out:
1841 netxen_nic_detach(adapter);
1842 return err;
1843 }
1844
1845 /*
1846 * netxen_nic_close - Disables a network interface entry point
1847 */
1848 static int netxen_nic_close(struct net_device *netdev)
1849 {
1850 struct netxen_adapter *adapter = netdev_priv(netdev);
1851
1852 __netxen_nic_down(adapter, netdev);
1853 return 0;
1854 }
1855
1856 static void
1857 netxen_tso_check(struct net_device *netdev,
1858 struct nx_host_tx_ring *tx_ring,
1859 struct cmd_desc_type0 *first_desc,
1860 struct sk_buff *skb)
1861 {
1862 u8 opcode = TX_ETHER_PKT;
1863 __be16 protocol = skb->protocol;
1864 u16 flags = 0, vid = 0;
1865 u32 producer;
1866 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1867 struct cmd_desc_type0 *hwdesc;
1868 struct vlan_ethhdr *vh;
1869
1870 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1871
1872 vh = (struct vlan_ethhdr *)skb->data;
1873 protocol = vh->h_vlan_encapsulated_proto;
1874 flags = FLAGS_VLAN_TAGGED;
1875
1876 } else if (vlan_tx_tag_present(skb)) {
1877 flags = FLAGS_VLAN_OOB;
1878 vid = vlan_tx_tag_get(skb);
1879 netxen_set_tx_vlan_tci(first_desc, vid);
1880 vlan_oob = 1;
1881 }
1882
1883 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1884 skb_shinfo(skb)->gso_size > 0) {
1885
1886 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1887
1888 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1889 first_desc->total_hdr_length = hdr_len;
1890 if (vlan_oob) {
1891 first_desc->total_hdr_length += VLAN_HLEN;
1892 first_desc->tcp_hdr_offset = VLAN_HLEN;
1893 first_desc->ip_hdr_offset = VLAN_HLEN;
1894 /* Only in case of TSO on vlan device */
1895 flags |= FLAGS_VLAN_TAGGED;
1896 }
1897
1898 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1899 TX_TCP_LSO6 : TX_TCP_LSO;
1900 tso = 1;
1901
1902 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1903 u8 l4proto;
1904
1905 if (protocol == cpu_to_be16(ETH_P_IP)) {
1906 l4proto = ip_hdr(skb)->protocol;
1907
1908 if (l4proto == IPPROTO_TCP)
1909 opcode = TX_TCP_PKT;
1910 else if(l4proto == IPPROTO_UDP)
1911 opcode = TX_UDP_PKT;
1912 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1913 l4proto = ipv6_hdr(skb)->nexthdr;
1914
1915 if (l4proto == IPPROTO_TCP)
1916 opcode = TX_TCPV6_PKT;
1917 else if(l4proto == IPPROTO_UDP)
1918 opcode = TX_UDPV6_PKT;
1919 }
1920 }
1921
1922 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1923 first_desc->ip_hdr_offset += skb_network_offset(skb);
1924 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1925
1926 if (!tso)
1927 return;
1928
1929 /* For LSO, we need to copy the MAC/IP/TCP headers into
1930 * the descriptor ring
1931 */
1932 producer = tx_ring->producer;
1933 copied = 0;
1934 offset = 2;
1935
1936 if (vlan_oob) {
1937 /* Create a TSO vlan header template for firmware */
1938
1939 hwdesc = &tx_ring->desc_head[producer];
1940 tx_ring->cmd_buf_arr[producer].skb = NULL;
1941
1942 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1943 hdr_len + VLAN_HLEN);
1944
1945 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1946 skb_copy_from_linear_data(skb, vh, 12);
1947 vh->h_vlan_proto = htons(ETH_P_8021Q);
1948 vh->h_vlan_TCI = htons(vid);
1949 skb_copy_from_linear_data_offset(skb, 12,
1950 (char *)vh + 16, copy_len - 16);
1951
1952 copied = copy_len - VLAN_HLEN;
1953 offset = 0;
1954
1955 producer = get_next_index(producer, tx_ring->num_desc);
1956 }
1957
1958 while (copied < hdr_len) {
1959
1960 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1961 (hdr_len - copied));
1962
1963 hwdesc = &tx_ring->desc_head[producer];
1964 tx_ring->cmd_buf_arr[producer].skb = NULL;
1965
1966 skb_copy_from_linear_data_offset(skb, copied,
1967 (char *)hwdesc + offset, copy_len);
1968
1969 copied += copy_len;
1970 offset = 0;
1971
1972 producer = get_next_index(producer, tx_ring->num_desc);
1973 }
1974
1975 tx_ring->producer = producer;
1976 barrier();
1977 }
1978
1979 static int
1980 netxen_map_tx_skb(struct pci_dev *pdev,
1981 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1982 {
1983 struct netxen_skb_frag *nf;
1984 struct skb_frag_struct *frag;
1985 int i, nr_frags;
1986 dma_addr_t map;
1987
1988 nr_frags = skb_shinfo(skb)->nr_frags;
1989 nf = &pbuf->frag_array[0];
1990
1991 map = pci_map_single(pdev, skb->data,
1992 skb_headlen(skb), PCI_DMA_TODEVICE);
1993 if (pci_dma_mapping_error(pdev, map))
1994 goto out_err;
1995
1996 nf->dma = map;
1997 nf->length = skb_headlen(skb);
1998
1999 for (i = 0; i < nr_frags; i++) {
2000 frag = &skb_shinfo(skb)->frags[i];
2001 nf = &pbuf->frag_array[i+1];
2002
2003 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
2004 DMA_TO_DEVICE);
2005 if (dma_mapping_error(&pdev->dev, map))
2006 goto unwind;
2007
2008 nf->dma = map;
2009 nf->length = skb_frag_size(frag);
2010 }
2011
2012 return 0;
2013
2014 unwind:
2015 while (--i >= 0) {
2016 nf = &pbuf->frag_array[i+1];
2017 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2018 nf->dma = 0ULL;
2019 }
2020
2021 nf = &pbuf->frag_array[0];
2022 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2023 nf->dma = 0ULL;
2024
2025 out_err:
2026 return -ENOMEM;
2027 }
2028
2029 static inline void
2030 netxen_clear_cmddesc(u64 *desc)
2031 {
2032 desc[0] = 0ULL;
2033 desc[2] = 0ULL;
2034 }
2035
2036 static netdev_tx_t
2037 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2038 {
2039 struct netxen_adapter *adapter = netdev_priv(netdev);
2040 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
2041 struct netxen_cmd_buffer *pbuf;
2042 struct netxen_skb_frag *buffrag;
2043 struct cmd_desc_type0 *hwdesc, *first_desc;
2044 struct pci_dev *pdev;
2045 int i, k;
2046 int delta = 0;
2047 struct skb_frag_struct *frag;
2048
2049 u32 producer;
2050 int frag_count, no_of_desc;
2051 u32 num_txd = tx_ring->num_desc;
2052
2053 frag_count = skb_shinfo(skb)->nr_frags + 1;
2054
2055 /* 14 frags supported for normal packet and
2056 * 32 frags supported for TSO packet
2057 */
2058 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
2059
2060 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
2061 frag = &skb_shinfo(skb)->frags[i];
2062 delta += skb_frag_size(frag);
2063 }
2064
2065 if (!__pskb_pull_tail(skb, delta))
2066 goto drop_packet;
2067
2068 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2069 }
2070 /* 4 fragments per cmd des */
2071 no_of_desc = (frag_count + 3) >> 2;
2072
2073 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2074 netif_stop_queue(netdev);
2075 smp_mb();
2076 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
2077 netif_start_queue(netdev);
2078 else
2079 return NETDEV_TX_BUSY;
2080 }
2081
2082 producer = tx_ring->producer;
2083 pbuf = &tx_ring->cmd_buf_arr[producer];
2084
2085 pdev = adapter->pdev;
2086
2087 if (netxen_map_tx_skb(pdev, skb, pbuf))
2088 goto drop_packet;
2089
2090 pbuf->skb = skb;
2091 pbuf->frag_count = frag_count;
2092
2093 first_desc = hwdesc = &tx_ring->desc_head[producer];
2094 netxen_clear_cmddesc((u64 *)hwdesc);
2095
2096 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
2097 netxen_set_tx_port(first_desc, adapter->portnum);
2098
2099 for (i = 0; i < frag_count; i++) {
2100
2101 k = i % 4;
2102
2103 if ((k == 0) && (i > 0)) {
2104 /* move to next desc.*/
2105 producer = get_next_index(producer, num_txd);
2106 hwdesc = &tx_ring->desc_head[producer];
2107 netxen_clear_cmddesc((u64 *)hwdesc);
2108 tx_ring->cmd_buf_arr[producer].skb = NULL;
2109 }
2110
2111 buffrag = &pbuf->frag_array[i];
2112
2113 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2114 switch (k) {
2115 case 0:
2116 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2117 break;
2118 case 1:
2119 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2120 break;
2121 case 2:
2122 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2123 break;
2124 case 3:
2125 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2126 break;
2127 }
2128 }
2129
2130 tx_ring->producer = get_next_index(producer, num_txd);
2131
2132 netxen_tso_check(netdev, tx_ring, first_desc, skb);
2133
2134 adapter->stats.txbytes += skb->len;
2135 adapter->stats.xmitcalled++;
2136
2137 netxen_nic_update_cmd_producer(adapter, tx_ring);
2138
2139 return NETDEV_TX_OK;
2140
2141 drop_packet:
2142 adapter->stats.txdropped++;
2143 dev_kfree_skb_any(skb);
2144 return NETDEV_TX_OK;
2145 }
2146
2147 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
2148 {
2149 struct net_device *netdev = adapter->netdev;
2150 uint32_t temp, temp_state, temp_val;
2151 int rv = 0;
2152
2153 temp = NXRD32(adapter, CRB_TEMP_STATE);
2154
2155 temp_state = nx_get_temp_state(temp);
2156 temp_val = nx_get_temp_val(temp);
2157
2158 if (temp_state == NX_TEMP_PANIC) {
2159 printk(KERN_ALERT
2160 "%s: Device temperature %d degrees C exceeds"
2161 " maximum allowed. Hardware has been shut down.\n",
2162 netdev->name, temp_val);
2163 rv = 1;
2164 } else if (temp_state == NX_TEMP_WARN) {
2165 if (adapter->temp == NX_TEMP_NORMAL) {
2166 printk(KERN_ALERT
2167 "%s: Device temperature %d degrees C "
2168 "exceeds operating range."
2169 " Immediate action needed.\n",
2170 netdev->name, temp_val);
2171 }
2172 } else {
2173 if (adapter->temp == NX_TEMP_WARN) {
2174 printk(KERN_INFO
2175 "%s: Device temperature is now %d degrees C"
2176 " in normal range.\n", netdev->name,
2177 temp_val);
2178 }
2179 }
2180 adapter->temp = temp_state;
2181 return rv;
2182 }
2183
2184 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
2185 {
2186 struct net_device *netdev = adapter->netdev;
2187
2188 if (adapter->ahw.linkup && !linkup) {
2189 printk(KERN_INFO "%s: %s NIC Link is down\n",
2190 netxen_nic_driver_name, netdev->name);
2191 adapter->ahw.linkup = 0;
2192 if (netif_running(netdev)) {
2193 netif_carrier_off(netdev);
2194 netif_stop_queue(netdev);
2195 }
2196 adapter->link_changed = !adapter->has_link_events;
2197 } else if (!adapter->ahw.linkup && linkup) {
2198 printk(KERN_INFO "%s: %s NIC Link is up\n",
2199 netxen_nic_driver_name, netdev->name);
2200 adapter->ahw.linkup = 1;
2201 if (netif_running(netdev)) {
2202 netif_carrier_on(netdev);
2203 netif_wake_queue(netdev);
2204 }
2205 adapter->link_changed = !adapter->has_link_events;
2206 }
2207 }
2208
2209 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2210 {
2211 u32 val, port, linkup;
2212
2213 port = adapter->physical_port;
2214
2215 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2216 val = NXRD32(adapter, CRB_XG_STATE_P3);
2217 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2218 linkup = (val == XG_LINK_UP_P3);
2219 } else {
2220 val = NXRD32(adapter, CRB_XG_STATE);
2221 val = (val >> port*8) & 0xff;
2222 linkup = (val == XG_LINK_UP);
2223 }
2224
2225 netxen_advert_link_change(adapter, linkup);
2226 }
2227
2228 static void netxen_tx_timeout(struct net_device *netdev)
2229 {
2230 struct netxen_adapter *adapter = netdev_priv(netdev);
2231
2232 if (test_bit(__NX_RESETTING, &adapter->state))
2233 return;
2234
2235 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2236 schedule_work(&adapter->tx_timeout_task);
2237 }
2238
2239 static void netxen_tx_timeout_task(struct work_struct *work)
2240 {
2241 struct netxen_adapter *adapter =
2242 container_of(work, struct netxen_adapter, tx_timeout_task);
2243
2244 if (!netif_running(adapter->netdev))
2245 return;
2246
2247 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
2248 return;
2249
2250 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2251 goto request_reset;
2252
2253 rtnl_lock();
2254 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2255 /* try to scrub interrupt */
2256 netxen_napi_disable(adapter);
2257
2258 netxen_napi_enable(adapter);
2259
2260 netif_wake_queue(adapter->netdev);
2261
2262 clear_bit(__NX_RESETTING, &adapter->state);
2263 } else {
2264 clear_bit(__NX_RESETTING, &adapter->state);
2265 if (netxen_nic_reset_context(adapter)) {
2266 rtnl_unlock();
2267 goto request_reset;
2268 }
2269 }
2270 adapter->netdev->trans_start = jiffies;
2271 rtnl_unlock();
2272 return;
2273
2274 request_reset:
2275 adapter->need_fw_reset = 1;
2276 clear_bit(__NX_RESETTING, &adapter->state);
2277 }
2278
2279 static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev,
2280 struct rtnl_link_stats64 *stats)
2281 {
2282 struct netxen_adapter *adapter = netdev_priv(netdev);
2283
2284 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2285 stats->tx_packets = adapter->stats.xmitfinished;
2286 stats->rx_bytes = adapter->stats.rxbytes;
2287 stats->tx_bytes = adapter->stats.txbytes;
2288 stats->rx_dropped = adapter->stats.rxdropped;
2289 stats->tx_dropped = adapter->stats.txdropped;
2290
2291 return stats;
2292 }
2293
2294 static irqreturn_t netxen_intr(int irq, void *data)
2295 {
2296 struct nx_host_sds_ring *sds_ring = data;
2297 struct netxen_adapter *adapter = sds_ring->adapter;
2298 u32 status = 0;
2299
2300 status = readl(adapter->isr_int_vec);
2301
2302 if (!(status & adapter->int_vec_bit))
2303 return IRQ_NONE;
2304
2305 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2306 /* check interrupt state machine, to be sure */
2307 status = readl(adapter->crb_int_state_reg);
2308 if (!ISR_LEGACY_INT_TRIGGERED(status))
2309 return IRQ_NONE;
2310
2311 } else {
2312 unsigned long our_int = 0;
2313
2314 our_int = readl(adapter->crb_int_state_reg);
2315
2316 /* not our interrupt */
2317 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2318 return IRQ_NONE;
2319
2320 /* claim interrupt */
2321 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2322
2323 /* clear interrupt */
2324 netxen_nic_disable_int(sds_ring);
2325 }
2326
2327 writel(0xffffffff, adapter->tgt_status_reg);
2328 /* read twice to ensure write is flushed */
2329 readl(adapter->isr_int_vec);
2330 readl(adapter->isr_int_vec);
2331
2332 napi_schedule(&sds_ring->napi);
2333
2334 return IRQ_HANDLED;
2335 }
2336
2337 static irqreturn_t netxen_msi_intr(int irq, void *data)
2338 {
2339 struct nx_host_sds_ring *sds_ring = data;
2340 struct netxen_adapter *adapter = sds_ring->adapter;
2341
2342 /* clear interrupt */
2343 writel(0xffffffff, adapter->tgt_status_reg);
2344
2345 napi_schedule(&sds_ring->napi);
2346 return IRQ_HANDLED;
2347 }
2348
2349 static irqreturn_t netxen_msix_intr(int irq, void *data)
2350 {
2351 struct nx_host_sds_ring *sds_ring = data;
2352
2353 napi_schedule(&sds_ring->napi);
2354 return IRQ_HANDLED;
2355 }
2356
2357 static int netxen_nic_poll(struct napi_struct *napi, int budget)
2358 {
2359 struct nx_host_sds_ring *sds_ring =
2360 container_of(napi, struct nx_host_sds_ring, napi);
2361
2362 struct netxen_adapter *adapter = sds_ring->adapter;
2363
2364 int tx_complete;
2365 int work_done;
2366
2367 tx_complete = netxen_process_cmd_ring(adapter);
2368
2369 work_done = netxen_process_rcv_ring(sds_ring, budget);
2370
2371 if ((work_done < budget) && tx_complete) {
2372 napi_complete(&sds_ring->napi);
2373 if (test_bit(__NX_DEV_UP, &adapter->state))
2374 netxen_nic_enable_int(sds_ring);
2375 }
2376
2377 return work_done;
2378 }
2379
2380 #ifdef CONFIG_NET_POLL_CONTROLLER
2381 static void netxen_nic_poll_controller(struct net_device *netdev)
2382 {
2383 int ring;
2384 struct nx_host_sds_ring *sds_ring;
2385 struct netxen_adapter *adapter = netdev_priv(netdev);
2386 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2387
2388 disable_irq(adapter->irq);
2389 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2390 sds_ring = &recv_ctx->sds_rings[ring];
2391 netxen_intr(adapter->irq, sds_ring);
2392 }
2393 enable_irq(adapter->irq);
2394 }
2395 #endif
2396
2397 static int
2398 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2399 {
2400 int count;
2401 if (netxen_api_lock(adapter))
2402 return -EIO;
2403
2404 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2405
2406 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2407
2408 netxen_api_unlock(adapter);
2409 return count;
2410 }
2411
2412 static int
2413 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2414 {
2415 int count, state;
2416 if (netxen_api_lock(adapter))
2417 return -EIO;
2418
2419 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2420 WARN_ON(count == 0);
2421
2422 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2423 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2424
2425 if (count == 0 && state != NX_DEV_FAILED)
2426 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2427
2428 netxen_api_unlock(adapter);
2429 return count;
2430 }
2431
2432 static int
2433 nx_dev_request_aer(struct netxen_adapter *adapter)
2434 {
2435 u32 state;
2436 int ret = -EINVAL;
2437
2438 if (netxen_api_lock(adapter))
2439 return ret;
2440
2441 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2442
2443 if (state == NX_DEV_NEED_AER)
2444 ret = 0;
2445 else if (state == NX_DEV_READY) {
2446 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2447 ret = 0;
2448 }
2449
2450 netxen_api_unlock(adapter);
2451 return ret;
2452 }
2453
2454 int
2455 nx_dev_request_reset(struct netxen_adapter *adapter)
2456 {
2457 u32 state;
2458 int ret = -EINVAL;
2459
2460 if (netxen_api_lock(adapter))
2461 return ret;
2462
2463 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2464
2465 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED)
2466 ret = 0;
2467 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
2468 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2469 adapter->flags |= NETXEN_FW_RESET_OWNER;
2470 ret = 0;
2471 }
2472
2473 netxen_api_unlock(adapter);
2474
2475 return ret;
2476 }
2477
2478 static int
2479 netxen_can_start_firmware(struct netxen_adapter *adapter)
2480 {
2481 int count;
2482 int can_start = 0;
2483
2484 if (netxen_api_lock(adapter)) {
2485 nx_incr_dev_ref_cnt(adapter);
2486 return -1;
2487 }
2488
2489 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2490
2491 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2492 count = 0;
2493
2494 if (count == 0) {
2495 can_start = 1;
2496 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2497 }
2498
2499 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2500
2501 netxen_api_unlock(adapter);
2502
2503 return can_start;
2504 }
2505
2506 static void
2507 netxen_schedule_work(struct netxen_adapter *adapter,
2508 work_func_t func, int delay)
2509 {
2510 INIT_DELAYED_WORK(&adapter->fw_work, func);
2511 schedule_delayed_work(&adapter->fw_work, delay);
2512 }
2513
2514 static void
2515 netxen_cancel_fw_work(struct netxen_adapter *adapter)
2516 {
2517 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2518 msleep(10);
2519
2520 cancel_delayed_work_sync(&adapter->fw_work);
2521 }
2522
2523 static void
2524 netxen_attach_work(struct work_struct *work)
2525 {
2526 struct netxen_adapter *adapter = container_of(work,
2527 struct netxen_adapter, fw_work.work);
2528 struct net_device *netdev = adapter->netdev;
2529 int err = 0;
2530
2531 if (netif_running(netdev)) {
2532 err = netxen_nic_attach(adapter);
2533 if (err)
2534 goto done;
2535
2536 err = netxen_nic_up(adapter, netdev);
2537 if (err) {
2538 netxen_nic_detach(adapter);
2539 goto done;
2540 }
2541
2542 netxen_restore_indev_addr(netdev, NETDEV_UP);
2543 }
2544
2545 netif_device_attach(netdev);
2546
2547 done:
2548 adapter->fw_fail_cnt = 0;
2549 clear_bit(__NX_RESETTING, &adapter->state);
2550 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2551 }
2552
2553 static void
2554 netxen_fwinit_work(struct work_struct *work)
2555 {
2556 struct netxen_adapter *adapter = container_of(work,
2557 struct netxen_adapter, fw_work.work);
2558 int dev_state;
2559 int count;
2560 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2561 if (adapter->flags & NETXEN_FW_RESET_OWNER) {
2562 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2563 WARN_ON(count == 0);
2564 if (count == 1) {
2565 if (adapter->mdump.md_enabled) {
2566 rtnl_lock();
2567 netxen_dump_fw(adapter);
2568 rtnl_unlock();
2569 }
2570 adapter->flags &= ~NETXEN_FW_RESET_OWNER;
2571 if (netxen_api_lock(adapter)) {
2572 clear_bit(__NX_RESETTING, &adapter->state);
2573 NXWR32(adapter, NX_CRB_DEV_STATE,
2574 NX_DEV_FAILED);
2575 return;
2576 }
2577 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2578 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2579 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2580 dev_state = NX_DEV_COLD;
2581 netxen_api_unlock(adapter);
2582 }
2583 }
2584
2585 switch (dev_state) {
2586 case NX_DEV_COLD:
2587 case NX_DEV_READY:
2588 if (!netxen_start_firmware(adapter)) {
2589 netxen_schedule_work(adapter, netxen_attach_work, 0);
2590 return;
2591 }
2592 break;
2593
2594 case NX_DEV_NEED_RESET:
2595 case NX_DEV_INITALIZING:
2596 netxen_schedule_work(adapter,
2597 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2598 return;
2599
2600 case NX_DEV_FAILED:
2601 default:
2602 nx_incr_dev_ref_cnt(adapter);
2603 break;
2604 }
2605
2606 if (netxen_api_lock(adapter)) {
2607 clear_bit(__NX_RESETTING, &adapter->state);
2608 return;
2609 }
2610 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED);
2611 netxen_api_unlock(adapter);
2612 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n",
2613 adapter->netdev->name);
2614
2615 clear_bit(__NX_RESETTING, &adapter->state);
2616 }
2617
2618 static void
2619 netxen_detach_work(struct work_struct *work)
2620 {
2621 struct netxen_adapter *adapter = container_of(work,
2622 struct netxen_adapter, fw_work.work);
2623 struct net_device *netdev = adapter->netdev;
2624 int ref_cnt = 0, delay;
2625 u32 status;
2626
2627 netif_device_detach(netdev);
2628
2629 netxen_nic_down(adapter, netdev);
2630
2631 rtnl_lock();
2632 netxen_nic_detach(adapter);
2633 rtnl_unlock();
2634
2635 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2636
2637 if (status & NX_RCODE_FATAL_ERROR)
2638 goto err_ret;
2639
2640 if (adapter->temp == NX_TEMP_PANIC)
2641 goto err_ret;
2642
2643 if (!(adapter->flags & NETXEN_FW_RESET_OWNER))
2644 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2645
2646 if (ref_cnt == -EIO)
2647 goto err_ret;
2648
2649 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2650
2651 adapter->fw_wait_cnt = 0;
2652 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2653
2654 return;
2655
2656 err_ret:
2657 clear_bit(__NX_RESETTING, &adapter->state);
2658 }
2659
2660 static int
2661 netxen_check_health(struct netxen_adapter *adapter)
2662 {
2663 u32 state, heartbit;
2664 u32 peg_status;
2665 struct net_device *netdev = adapter->netdev;
2666
2667 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2668 if (state == NX_DEV_NEED_AER)
2669 return 0;
2670
2671 if (netxen_nic_check_temp(adapter))
2672 goto detach;
2673
2674 if (adapter->need_fw_reset) {
2675 if (nx_dev_request_reset(adapter))
2676 return 0;
2677 goto detach;
2678 }
2679
2680 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2681 * 1. Tx timeout 2. Fw hang
2682 * Send request to destroy context in case of tx timeout only
2683 * and doesn't required in case of Fw hang
2684 */
2685 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) {
2686 adapter->need_fw_reset = 1;
2687 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2688 goto detach;
2689 }
2690
2691 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2692 return 0;
2693
2694 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2695 if (heartbit != adapter->heartbit) {
2696 adapter->heartbit = heartbit;
2697 adapter->fw_fail_cnt = 0;
2698 if (adapter->need_fw_reset)
2699 goto detach;
2700 return 0;
2701 }
2702
2703 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2704 return 0;
2705
2706 if (nx_dev_request_reset(adapter))
2707 return 0;
2708
2709 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2710
2711 dev_err(&netdev->dev, "firmware hang detected\n");
2712 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2713 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2714 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2715 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2716 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2717 "PEG_NET_4_PC: 0x%x\n",
2718 peg_status,
2719 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2),
2720 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c),
2721 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c),
2722 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c),
2723 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c),
2724 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c));
2725 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67)
2726 dev_err(&adapter->pdev->dev,
2727 "Firmware aborted with error code 0x00006700. "
2728 "Device is being reset.\n");
2729 detach:
2730 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2731 !test_and_set_bit(__NX_RESETTING, &adapter->state))
2732 netxen_schedule_work(adapter, netxen_detach_work, 0);
2733 return 1;
2734 }
2735
2736 static void
2737 netxen_fw_poll_work(struct work_struct *work)
2738 {
2739 struct netxen_adapter *adapter = container_of(work,
2740 struct netxen_adapter, fw_work.work);
2741
2742 if (test_bit(__NX_RESETTING, &adapter->state))
2743 goto reschedule;
2744
2745 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2746 if (!adapter->has_link_events) {
2747
2748 netxen_nic_handle_phy_intr(adapter);
2749
2750 if (adapter->link_changed)
2751 netxen_nic_set_link_parameters(adapter);
2752 }
2753 }
2754
2755 if (netxen_check_health(adapter))
2756 return;
2757
2758 reschedule:
2759 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2760 }
2761
2762 static ssize_t
2763 netxen_store_bridged_mode(struct device *dev,
2764 struct device_attribute *attr, const char *buf, size_t len)
2765 {
2766 struct net_device *net = to_net_dev(dev);
2767 struct netxen_adapter *adapter = netdev_priv(net);
2768 unsigned long new;
2769 int ret = -EINVAL;
2770
2771 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2772 goto err_out;
2773
2774 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2775 goto err_out;
2776
2777 if (kstrtoul(buf, 2, &new))
2778 goto err_out;
2779
2780 if (!netxen_config_bridged_mode(adapter, !!new))
2781 ret = len;
2782
2783 err_out:
2784 return ret;
2785 }
2786
2787 static ssize_t
2788 netxen_show_bridged_mode(struct device *dev,
2789 struct device_attribute *attr, char *buf)
2790 {
2791 struct net_device *net = to_net_dev(dev);
2792 struct netxen_adapter *adapter;
2793 int bridged_mode = 0;
2794
2795 adapter = netdev_priv(net);
2796
2797 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2798 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2799
2800 return sprintf(buf, "%d\n", bridged_mode);
2801 }
2802
2803 static struct device_attribute dev_attr_bridged_mode = {
2804 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2805 .show = netxen_show_bridged_mode,
2806 .store = netxen_store_bridged_mode,
2807 };
2808
2809 static ssize_t
2810 netxen_store_diag_mode(struct device *dev,
2811 struct device_attribute *attr, const char *buf, size_t len)
2812 {
2813 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2814 unsigned long new;
2815
2816 if (kstrtoul(buf, 2, &new))
2817 return -EINVAL;
2818
2819 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2820 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2821
2822 return len;
2823 }
2824
2825 static ssize_t
2826 netxen_show_diag_mode(struct device *dev,
2827 struct device_attribute *attr, char *buf)
2828 {
2829 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2830
2831 return sprintf(buf, "%d\n",
2832 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2833 }
2834
2835 static struct device_attribute dev_attr_diag_mode = {
2836 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2837 .show = netxen_show_diag_mode,
2838 .store = netxen_store_diag_mode,
2839 };
2840
2841 static int
2842 netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2843 loff_t offset, size_t size)
2844 {
2845 size_t crb_size = 4;
2846
2847 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2848 return -EIO;
2849
2850 if (offset < NETXEN_PCI_CRBSPACE) {
2851 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2852 return -EINVAL;
2853
2854 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2855 NETXEN_PCI_CAMQM_2M_END))
2856 crb_size = 8;
2857 else
2858 return -EINVAL;
2859 }
2860
2861 if ((size != crb_size) || (offset & (crb_size-1)))
2862 return -EINVAL;
2863
2864 return 0;
2865 }
2866
2867 static ssize_t
2868 netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2869 struct bin_attribute *attr,
2870 char *buf, loff_t offset, size_t size)
2871 {
2872 struct device *dev = container_of(kobj, struct device, kobj);
2873 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2874 u32 data;
2875 u64 qmdata;
2876 int ret;
2877
2878 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2879 if (ret != 0)
2880 return ret;
2881
2882 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2883 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2884 NETXEN_PCI_CAMQM_2M_END)) {
2885 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2886 memcpy(buf, &qmdata, size);
2887 } else {
2888 data = NXRD32(adapter, offset);
2889 memcpy(buf, &data, size);
2890 }
2891
2892 return size;
2893 }
2894
2895 static ssize_t
2896 netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2897 struct bin_attribute *attr,
2898 char *buf, loff_t offset, size_t size)
2899 {
2900 struct device *dev = container_of(kobj, struct device, kobj);
2901 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2902 u32 data;
2903 u64 qmdata;
2904 int ret;
2905
2906 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2907 if (ret != 0)
2908 return ret;
2909
2910 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2911 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2912 NETXEN_PCI_CAMQM_2M_END)) {
2913 memcpy(&qmdata, buf, size);
2914 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2915 } else {
2916 memcpy(&data, buf, size);
2917 NXWR32(adapter, offset, data);
2918 }
2919
2920 return size;
2921 }
2922
2923 static int
2924 netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2925 loff_t offset, size_t size)
2926 {
2927 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2928 return -EIO;
2929
2930 if ((size != 8) || (offset & 0x7))
2931 return -EIO;
2932
2933 return 0;
2934 }
2935
2936 static ssize_t
2937 netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2938 struct bin_attribute *attr,
2939 char *buf, loff_t offset, size_t size)
2940 {
2941 struct device *dev = container_of(kobj, struct device, kobj);
2942 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2943 u64 data;
2944 int ret;
2945
2946 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2947 if (ret != 0)
2948 return ret;
2949
2950 if (adapter->pci_mem_read(adapter, offset, &data))
2951 return -EIO;
2952
2953 memcpy(buf, &data, size);
2954
2955 return size;
2956 }
2957
2958 static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
2959 struct bin_attribute *attr, char *buf,
2960 loff_t offset, size_t size)
2961 {
2962 struct device *dev = container_of(kobj, struct device, kobj);
2963 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2964 u64 data;
2965 int ret;
2966
2967 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2968 if (ret != 0)
2969 return ret;
2970
2971 memcpy(&data, buf, size);
2972
2973 if (adapter->pci_mem_write(adapter, offset, data))
2974 return -EIO;
2975
2976 return size;
2977 }
2978
2979
2980 static struct bin_attribute bin_attr_crb = {
2981 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2982 .size = 0,
2983 .read = netxen_sysfs_read_crb,
2984 .write = netxen_sysfs_write_crb,
2985 };
2986
2987 static struct bin_attribute bin_attr_mem = {
2988 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2989 .size = 0,
2990 .read = netxen_sysfs_read_mem,
2991 .write = netxen_sysfs_write_mem,
2992 };
2993
2994 static ssize_t
2995 netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj,
2996 struct bin_attribute *attr,
2997 char *buf, loff_t offset, size_t size)
2998 {
2999 struct device *dev = container_of(kobj, struct device, kobj);
3000 struct netxen_adapter *adapter = dev_get_drvdata(dev);
3001 struct net_device *netdev = adapter->netdev;
3002 struct netxen_dimm_cfg dimm;
3003 u8 dw, rows, cols, banks, ranks;
3004 u32 val;
3005
3006 if (size != sizeof(struct netxen_dimm_cfg)) {
3007 netdev_err(netdev, "Invalid size\n");
3008 return -1;
3009 }
3010
3011 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg));
3012 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY);
3013
3014 /* Checks if DIMM info is valid. */
3015 if (val & NETXEN_DIMM_VALID_FLAG) {
3016 netdev_err(netdev, "Invalid DIMM flag\n");
3017 dimm.presence = 0xff;
3018 goto out;
3019 }
3020
3021 rows = NETXEN_DIMM_NUMROWS(val);
3022 cols = NETXEN_DIMM_NUMCOLS(val);
3023 ranks = NETXEN_DIMM_NUMRANKS(val);
3024 banks = NETXEN_DIMM_NUMBANKS(val);
3025 dw = NETXEN_DIMM_DATAWIDTH(val);
3026
3027 dimm.presence = (val & NETXEN_DIMM_PRESENT);
3028
3029 /* Checks if DIMM info is present. */
3030 if (!dimm.presence) {
3031 netdev_err(netdev, "DIMM not present\n");
3032 goto out;
3033 }
3034
3035 dimm.dimm_type = NETXEN_DIMM_TYPE(val);
3036
3037 switch (dimm.dimm_type) {
3038 case NETXEN_DIMM_TYPE_RDIMM:
3039 case NETXEN_DIMM_TYPE_UDIMM:
3040 case NETXEN_DIMM_TYPE_SO_DIMM:
3041 case NETXEN_DIMM_TYPE_Micro_DIMM:
3042 case NETXEN_DIMM_TYPE_Mini_RDIMM:
3043 case NETXEN_DIMM_TYPE_Mini_UDIMM:
3044 break;
3045 default:
3046 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type);
3047 goto out;
3048 }
3049
3050 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM)
3051 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM;
3052 else
3053 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val);
3054
3055 if (val & NETXEN_DIMM_SIZE) {
3056 dimm.size = NETXEN_DIMM_STD_MEM_SIZE;
3057 goto out;
3058 }
3059
3060 if (!rows) {
3061 netdev_err(netdev, "Invalid no of rows %x\n", rows);
3062 goto out;
3063 }
3064
3065 if (!cols) {
3066 netdev_err(netdev, "Invalid no of columns %x\n", cols);
3067 goto out;
3068 }
3069
3070 if (!banks) {
3071 netdev_err(netdev, "Invalid no of banks %x\n", banks);
3072 goto out;
3073 }
3074
3075 ranks += 1;
3076
3077 switch (dw) {
3078 case 0x0:
3079 dw = 32;
3080 break;
3081 case 0x1:
3082 dw = 33;
3083 break;
3084 case 0x2:
3085 dw = 36;
3086 break;
3087 case 0x3:
3088 dw = 64;
3089 break;
3090 case 0x4:
3091 dw = 72;
3092 break;
3093 case 0x5:
3094 dw = 80;
3095 break;
3096 case 0x6:
3097 dw = 128;
3098 break;
3099 case 0x7:
3100 dw = 144;
3101 break;
3102 default:
3103 netdev_err(netdev, "Invalid data-width %x\n", dw);
3104 goto out;
3105 }
3106
3107 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8;
3108 /* Size returned in MB. */
3109 dimm.size = (dimm.size) / 0x100000;
3110 out:
3111 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg));
3112 return sizeof(struct netxen_dimm_cfg);
3113
3114 }
3115
3116 static struct bin_attribute bin_attr_dimm = {
3117 .attr = { .name = "dimm", .mode = (S_IRUGO | S_IWUSR) },
3118 .size = 0,
3119 .read = netxen_sysfs_read_dimm,
3120 };
3121
3122
3123 static void
3124 netxen_create_sysfs_entries(struct netxen_adapter *adapter)
3125 {
3126 struct device *dev = &adapter->pdev->dev;
3127
3128 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
3129 /* bridged_mode control */
3130 if (device_create_file(dev, &dev_attr_bridged_mode)) {
3131 dev_warn(dev,
3132 "failed to create bridged_mode sysfs entry\n");
3133 }
3134 }
3135 }
3136
3137 static void
3138 netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
3139 {
3140 struct device *dev = &adapter->pdev->dev;
3141
3142 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
3143 device_remove_file(dev, &dev_attr_bridged_mode);
3144 }
3145
3146 static void
3147 netxen_create_diag_entries(struct netxen_adapter *adapter)
3148 {
3149 struct pci_dev *pdev = adapter->pdev;
3150 struct device *dev;
3151
3152 dev = &pdev->dev;
3153 if (device_create_file(dev, &dev_attr_diag_mode))
3154 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3155 if (device_create_bin_file(dev, &bin_attr_crb))
3156 dev_info(dev, "failed to create crb sysfs entry\n");
3157 if (device_create_bin_file(dev, &bin_attr_mem))
3158 dev_info(dev, "failed to create mem sysfs entry\n");
3159 if (device_create_bin_file(dev, &bin_attr_dimm))
3160 dev_info(dev, "failed to create dimm sysfs entry\n");
3161 }
3162
3163
3164 static void
3165 netxen_remove_diag_entries(struct netxen_adapter *adapter)
3166 {
3167 struct pci_dev *pdev = adapter->pdev;
3168 struct device *dev = &pdev->dev;
3169
3170 device_remove_file(dev, &dev_attr_diag_mode);
3171 device_remove_bin_file(dev, &bin_attr_crb);
3172 device_remove_bin_file(dev, &bin_attr_mem);
3173 device_remove_bin_file(dev, &bin_attr_dimm);
3174 }
3175
3176 #ifdef CONFIG_INET
3177
3178 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
3179
3180 static int
3181 netxen_destip_supported(struct netxen_adapter *adapter)
3182 {
3183 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
3184 return 0;
3185
3186 if (adapter->ahw.cut_through)
3187 return 0;
3188
3189 return 1;
3190 }
3191
3192 static void
3193 netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
3194 {
3195 struct nx_ip_list *cur, *tmp_cur;
3196
3197 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) {
3198 if (master) {
3199 if (cur->master) {
3200 netxen_config_ipaddr(adapter, cur->ip_addr,
3201 NX_IP_DOWN);
3202 list_del(&cur->list);
3203 kfree(cur);
3204 }
3205 } else {
3206 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
3207 list_del(&cur->list);
3208 kfree(cur);
3209 }
3210 }
3211 }
3212
3213 static bool
3214 netxen_list_config_ip(struct netxen_adapter *adapter,
3215 struct in_ifaddr *ifa, unsigned long event)
3216 {
3217 struct net_device *dev;
3218 struct nx_ip_list *cur, *tmp_cur;
3219 struct list_head *head;
3220 bool ret = false;
3221
3222 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3223
3224 if (dev == NULL)
3225 goto out;
3226
3227 switch (event) {
3228 case NX_IP_UP:
3229 list_for_each(head, &adapter->ip_list) {
3230 cur = list_entry(head, struct nx_ip_list, list);
3231
3232 if (cur->ip_addr == ifa->ifa_address)
3233 goto out;
3234 }
3235
3236 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC);
3237 if (cur == NULL)
3238 goto out;
3239 if (dev->priv_flags & IFF_802_1Q_VLAN)
3240 dev = vlan_dev_real_dev(dev);
3241 cur->master = !!netif_is_bond_master(dev);
3242 cur->ip_addr = ifa->ifa_address;
3243 list_add_tail(&cur->list, &adapter->ip_list);
3244 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
3245 ret = true;
3246 break;
3247 case NX_IP_DOWN:
3248 list_for_each_entry_safe(cur, tmp_cur,
3249 &adapter->ip_list, list) {
3250 if (cur->ip_addr == ifa->ifa_address) {
3251 list_del(&cur->list);
3252 kfree(cur);
3253 netxen_config_ipaddr(adapter, ifa->ifa_address,
3254 NX_IP_DOWN);
3255 ret = true;
3256 break;
3257 }
3258 }
3259 }
3260 out:
3261 return ret;
3262 }
3263
3264 static void
3265 netxen_config_indev_addr(struct netxen_adapter *adapter,
3266 struct net_device *dev, unsigned long event)
3267 {
3268 struct in_device *indev;
3269
3270 if (!netxen_destip_supported(adapter))
3271 return;
3272
3273 indev = in_dev_get(dev);
3274 if (!indev)
3275 return;
3276
3277 for_ifa(indev) {
3278 switch (event) {
3279 case NETDEV_UP:
3280 netxen_list_config_ip(adapter, ifa, NX_IP_UP);
3281 break;
3282 case NETDEV_DOWN:
3283 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN);
3284 break;
3285 default:
3286 break;
3287 }
3288 } endfor_ifa(indev);
3289
3290 in_dev_put(indev);
3291 }
3292
3293 static void
3294 netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)
3295
3296 {
3297 struct netxen_adapter *adapter = netdev_priv(netdev);
3298 struct nx_ip_list *pos, *tmp_pos;
3299 unsigned long ip_event;
3300
3301 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3302 netxen_config_indev_addr(adapter, netdev, event);
3303
3304 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) {
3305 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
3306 }
3307 }
3308
3309 static inline bool
3310 netxen_config_checkdev(struct net_device *dev)
3311 {
3312 struct netxen_adapter *adapter;
3313
3314 if (!is_netxen_netdev(dev))
3315 return false;
3316 adapter = netdev_priv(dev);
3317 if (!adapter)
3318 return false;
3319 if (!netxen_destip_supported(adapter))
3320 return false;
3321 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3322 return false;
3323
3324 return true;
3325 }
3326
3327 /**
3328 * netxen_config_master - configure addresses based on master
3329 * @dev: netxen device
3330 * @event: netdev event
3331 */
3332 static void netxen_config_master(struct net_device *dev, unsigned long event)
3333 {
3334 struct net_device *master, *slave;
3335 struct netxen_adapter *adapter = netdev_priv(dev);
3336
3337 rcu_read_lock();
3338 master = netdev_master_upper_dev_get_rcu(dev);
3339 /*
3340 * This is the case where the netxen nic is being
3341 * enslaved and is dev_open()ed in bond_enslave()
3342 * Now we should program the bond's (and its vlans')
3343 * addresses in the netxen NIC.
3344 */
3345 if (master && netif_is_bond_master(master) &&
3346 !netif_is_bond_slave(dev)) {
3347 netxen_config_indev_addr(adapter, master, event);
3348 for_each_netdev_rcu(&init_net, slave)
3349 if (slave->priv_flags & IFF_802_1Q_VLAN &&
3350 vlan_dev_real_dev(slave) == master)
3351 netxen_config_indev_addr(adapter, slave, event);
3352 }
3353 rcu_read_unlock();
3354 /*
3355 * This is the case where the netxen nic is being
3356 * released and is dev_close()ed in bond_release()
3357 * just before IFF_BONDING is stripped.
3358 */
3359 if (!master && dev->priv_flags & IFF_BONDING)
3360 netxen_free_ip_list(adapter, true);
3361 }
3362
3363 static int netxen_netdev_event(struct notifier_block *this,
3364 unsigned long event, void *ptr)
3365 {
3366 struct netxen_adapter *adapter;
3367 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3368 struct net_device *orig_dev = dev;
3369 struct net_device *slave;
3370
3371 recheck:
3372 if (dev == NULL)
3373 goto done;
3374
3375 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3376 dev = vlan_dev_real_dev(dev);
3377 goto recheck;
3378 }
3379 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3380 /* If this is a bonding device, look for netxen-based slaves*/
3381 if (netif_is_bond_master(dev)) {
3382 rcu_read_lock();
3383 for_each_netdev_in_bond_rcu(dev, slave) {
3384 if (!netxen_config_checkdev(slave))
3385 continue;
3386 adapter = netdev_priv(slave);
3387 netxen_config_indev_addr(adapter,
3388 orig_dev, event);
3389 }
3390 rcu_read_unlock();
3391 } else {
3392 if (!netxen_config_checkdev(dev))
3393 goto done;
3394 adapter = netdev_priv(dev);
3395 /* Act only if the actual netxen is the target */
3396 if (orig_dev == dev)
3397 netxen_config_master(dev, event);
3398 netxen_config_indev_addr(adapter, orig_dev, event);
3399 }
3400 }
3401 done:
3402 return NOTIFY_DONE;
3403 }
3404
3405 static int
3406 netxen_inetaddr_event(struct notifier_block *this,
3407 unsigned long event, void *ptr)
3408 {
3409 struct netxen_adapter *adapter;
3410 struct net_device *dev, *slave;
3411 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3412 unsigned long ip_event;
3413
3414 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3415 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3416 recheck:
3417 if (dev == NULL)
3418 goto done;
3419
3420 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3421 dev = vlan_dev_real_dev(dev);
3422 goto recheck;
3423 }
3424 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3425 /* If this is a bonding device, look for netxen-based slaves*/
3426 if (netif_is_bond_master(dev)) {
3427 rcu_read_lock();
3428 for_each_netdev_in_bond_rcu(dev, slave) {
3429 if (!netxen_config_checkdev(slave))
3430 continue;
3431 adapter = netdev_priv(slave);
3432 netxen_list_config_ip(adapter, ifa, ip_event);
3433 }
3434 rcu_read_unlock();
3435 } else {
3436 if (!netxen_config_checkdev(dev))
3437 goto done;
3438 adapter = netdev_priv(dev);
3439 netxen_list_config_ip(adapter, ifa, ip_event);
3440 }
3441 }
3442 done:
3443 return NOTIFY_DONE;
3444 }
3445
3446 static struct notifier_block netxen_netdev_cb = {
3447 .notifier_call = netxen_netdev_event,
3448 };
3449
3450 static struct notifier_block netxen_inetaddr_cb = {
3451 .notifier_call = netxen_inetaddr_event,
3452 };
3453 #else
3454 static void
3455 netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
3456 { }
3457 static void
3458 netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
3459 { }
3460 #endif
3461
3462 static const struct pci_error_handlers netxen_err_handler = {
3463 .error_detected = netxen_io_error_detected,
3464 .slot_reset = netxen_io_slot_reset,
3465 .resume = netxen_io_resume,
3466 };
3467
3468 static struct pci_driver netxen_driver = {
3469 .name = netxen_nic_driver_name,
3470 .id_table = netxen_pci_tbl,
3471 .probe = netxen_nic_probe,
3472 .remove = netxen_nic_remove,
3473 #ifdef CONFIG_PM
3474 .suspend = netxen_nic_suspend,
3475 .resume = netxen_nic_resume,
3476 #endif
3477 .shutdown = netxen_nic_shutdown,
3478 .err_handler = &netxen_err_handler
3479 };
3480
3481 static int __init netxen_init_module(void)
3482 {
3483 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
3484
3485 #ifdef CONFIG_INET
3486 register_netdevice_notifier(&netxen_netdev_cb);
3487 register_inetaddr_notifier(&netxen_inetaddr_cb);
3488 #endif
3489 return pci_register_driver(&netxen_driver);
3490 }
3491
3492 module_init(netxen_init_module);
3493
3494 static void __exit netxen_exit_module(void)
3495 {
3496 pci_unregister_driver(&netxen_driver);
3497
3498 #ifdef CONFIG_INET
3499 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
3500 unregister_netdevice_notifier(&netxen_netdev_cb);
3501 #endif
3502 }
3503
3504 module_exit(netxen_exit_module);
Linux kernel - Deliverables
This page took 0.122662 seconds and 5 git commands to generate.