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pvrusb2: reduce stack usage pvr2_eeprom_analyze()
[linux/fpc-iii.git] / drivers / net / ethernet / qlogic / netxen / netxen_nic_main.c
blob7a0281a36c2818a002a8fc2bc00ceb6ae7221921
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, see <http://www.gnu.org/licenses/>.
18 *
19 * The full GNU General Public License is included in this distribution
20 * in the file called "COPYING".
21 *
22 */
23
24 #include <linux/slab.h>
25 #include <linux/vmalloc.h>
26 #include <linux/interrupt.h>
27 #include "netxen_nic_hw.h"
28
29 #include "netxen_nic.h"
30
31 #include <linux/dma-mapping.h>
32 #include <linux/if_vlan.h>
33 #include <net/ip.h>
34 #include <linux/ipv6.h>
35 #include <linux/inetdevice.h>
36 #include <linux/sysfs.h>
37 #include <linux/aer.h>
38
39 MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver");
40 MODULE_LICENSE("GPL");
41 MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
42 MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
43
44 char netxen_nic_driver_name[] = "netxen_nic";
45 static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
46 NETXEN_NIC_LINUX_VERSIONID;
47
48 static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
49
50 /* Default to restricted 1G auto-neg mode */
51 static int wol_port_mode = 5;
52
53 static int use_msi = 1;
54
55 static int use_msi_x = 1;
56
57 static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
58 module_param(auto_fw_reset, int, 0644);
59 MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
60
61 static int netxen_nic_probe(struct pci_dev *pdev,
62 const struct pci_device_id *ent);
63 static void netxen_nic_remove(struct pci_dev *pdev);
64 static int netxen_nic_open(struct net_device *netdev);
65 static int netxen_nic_close(struct net_device *netdev);
66 static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
67 struct net_device *);
68 static void netxen_tx_timeout(struct net_device *netdev);
69 static void netxen_tx_timeout_task(struct work_struct *work);
70 static void netxen_fw_poll_work(struct work_struct *work);
71 static void netxen_schedule_work(struct netxen_adapter *adapter,
72 work_func_t func, int delay);
73 static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
74 static int netxen_nic_poll(struct napi_struct *napi, int budget);
75 #ifdef CONFIG_NET_POLL_CONTROLLER
76 static void netxen_nic_poll_controller(struct net_device *netdev);
77 #endif
78
79 static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
80 static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
81 static void netxen_create_diag_entries(struct netxen_adapter *adapter);
82 static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
83 static int nx_dev_request_aer(struct netxen_adapter *adapter);
84 static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
85 static int netxen_can_start_firmware(struct netxen_adapter *adapter);
86
87 static irqreturn_t netxen_intr(int irq, void *data);
88 static irqreturn_t netxen_msi_intr(int irq, void *data);
89 static irqreturn_t netxen_msix_intr(int irq, void *data);
90
91 static void netxen_free_ip_list(struct netxen_adapter *, bool);
92 static void netxen_restore_indev_addr(struct net_device *dev, unsigned long);
93 static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *dev,
94 struct rtnl_link_stats64 *stats);
95 static int netxen_nic_set_mac(struct net_device *netdev, void *p);
96
97 /* PCI Device ID Table */
98 #define ENTRY(device) \
99 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
100 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
101
102 static const struct pci_device_id netxen_pci_tbl[] = {
103 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
104 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
105 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
106 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
107 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
108 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
109 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
110 ENTRY(PCI_DEVICE_ID_NX3031),
111 {0,}
112 };
113
114 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
115
116 static uint32_t crb_cmd_producer[4] = {
117 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
118 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
119 };
120
121 void
122 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
123 struct nx_host_tx_ring *tx_ring)
124 {
125 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
126 }
127
128 static uint32_t crb_cmd_consumer[4] = {
129 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
130 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
131 };
132
133 static inline void
134 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
135 struct nx_host_tx_ring *tx_ring)
136 {
137 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
138 }
139
140 static uint32_t msi_tgt_status[8] = {
141 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
142 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
143 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
144 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
145 };
146
147 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
148
149 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
150 {
151 struct netxen_adapter *adapter = sds_ring->adapter;
152
153 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
154 }
155
156 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
157 {
158 struct netxen_adapter *adapter = sds_ring->adapter;
159
160 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
161
162 if (!NETXEN_IS_MSI_FAMILY(adapter))
163 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
164 }
165
166 static int
167 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
168 {
169 int size = sizeof(struct nx_host_sds_ring) * count;
170
171 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
172
173 return recv_ctx->sds_rings == NULL;
174 }
175
176 static void
177 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
178 {
179 kfree(recv_ctx->sds_rings);
180 recv_ctx->sds_rings = NULL;
181 }
182
183 static int
184 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
185 {
186 int ring;
187 struct nx_host_sds_ring *sds_ring;
188 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
189
190 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
191 return -ENOMEM;
192
193 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
194 sds_ring = &recv_ctx->sds_rings[ring];
195 netif_napi_add(netdev, &sds_ring->napi,
196 netxen_nic_poll, NAPI_POLL_WEIGHT);
197 }
198
199 return 0;
200 }
201
202 static void
203 netxen_napi_del(struct netxen_adapter *adapter)
204 {
205 int ring;
206 struct nx_host_sds_ring *sds_ring;
207 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
208
209 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
210 sds_ring = &recv_ctx->sds_rings[ring];
211 netif_napi_del(&sds_ring->napi);
212 }
213
214 netxen_free_sds_rings(&adapter->recv_ctx);
215 }
216
217 static void
218 netxen_napi_enable(struct netxen_adapter *adapter)
219 {
220 int ring;
221 struct nx_host_sds_ring *sds_ring;
222 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
223
224 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
225 sds_ring = &recv_ctx->sds_rings[ring];
226 napi_enable(&sds_ring->napi);
227 netxen_nic_enable_int(sds_ring);
228 }
229 }
230
231 static void
232 netxen_napi_disable(struct netxen_adapter *adapter)
233 {
234 int ring;
235 struct nx_host_sds_ring *sds_ring;
236 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
237
238 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
239 sds_ring = &recv_ctx->sds_rings[ring];
240 netxen_nic_disable_int(sds_ring);
241 napi_synchronize(&sds_ring->napi);
242 napi_disable(&sds_ring->napi);
243 }
244 }
245
246 static int nx_set_dma_mask(struct netxen_adapter *adapter)
247 {
248 struct pci_dev *pdev = adapter->pdev;
249 uint64_t mask, cmask;
250
251 adapter->pci_using_dac = 0;
252
253 mask = DMA_BIT_MASK(32);
254 cmask = DMA_BIT_MASK(32);
255
256 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
257 #ifndef CONFIG_IA64
258 mask = DMA_BIT_MASK(35);
259 #endif
260 } else {
261 mask = DMA_BIT_MASK(39);
262 cmask = mask;
263 }
264
265 if (pci_set_dma_mask(pdev, mask) == 0 &&
266 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
267 adapter->pci_using_dac = 1;
268 return 0;
269 }
270
271 return -EIO;
272 }
273
274 /* Update addressable range if firmware supports it */
275 static int
276 nx_update_dma_mask(struct netxen_adapter *adapter)
277 {
278 int change, shift, err;
279 uint64_t mask, old_mask, old_cmask;
280 struct pci_dev *pdev = adapter->pdev;
281
282 change = 0;
283
284 shift = NXRD32(adapter, CRB_DMA_SHIFT);
285 if (shift > 32)
286 return 0;
287
288 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
289 change = 1;
290 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
291 change = 1;
292
293 if (change) {
294 old_mask = pdev->dma_mask;
295 old_cmask = pdev->dev.coherent_dma_mask;
296
297 mask = DMA_BIT_MASK(32+shift);
298
299 err = pci_set_dma_mask(pdev, mask);
300 if (err)
301 goto err_out;
302
303 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
304
305 err = pci_set_consistent_dma_mask(pdev, mask);
306 if (err)
307 goto err_out;
308 }
309 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
310 }
311
312 return 0;
313
314 err_out:
315 pci_set_dma_mask(pdev, old_mask);
316 pci_set_consistent_dma_mask(pdev, old_cmask);
317 return err;
318 }
319
320 static int
321 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
322 {
323 u32 val, timeout;
324
325 if (first_boot == 0x55555555) {
326 /* This is the first boot after power up */
327 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
328
329 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
330 return 0;
331
332 /* PCI bus master workaround */
333 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
334 if (!(first_boot & 0x4)) {
335 first_boot |= 0x4;
336 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
337 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
338 }
339
340 /* This is the first boot after power up */
341 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
342 if (first_boot != 0x80000f) {
343 /* clear the register for future unloads/loads */
344 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
345 return -EIO;
346 }
347
348 /* Start P2 boot loader */
349 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
350 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
351 timeout = 0;
352 do {
353 msleep(1);
354 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
355
356 if (++timeout > 5000)
357 return -EIO;
358
359 } while (val == NETXEN_BDINFO_MAGIC);
360 }
361 return 0;
362 }
363
364 static void netxen_set_port_mode(struct netxen_adapter *adapter)
365 {
366 u32 val, data;
367
368 val = adapter->ahw.board_type;
369 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
370 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
371 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
372 data = NETXEN_PORT_MODE_802_3_AP;
373 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
374 } else if (port_mode == NETXEN_PORT_MODE_XG) {
375 data = NETXEN_PORT_MODE_XG;
376 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
377 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
378 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
379 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
380 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
381 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
382 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
383 } else {
384 data = NETXEN_PORT_MODE_AUTO_NEG;
385 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
386 }
387
388 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
389 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
390 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
391 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
392 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
393 }
394 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
395 }
396 }
397
398 #define PCI_CAP_ID_GEN 0x10
399
400 static void netxen_pcie_strap_init(struct netxen_adapter *adapter)
401 {
402 u32 pdevfuncsave;
403 u32 c8c9value = 0;
404 u32 chicken = 0;
405 u32 control = 0;
406 int i, pos;
407 struct pci_dev *pdev;
408
409 pdev = adapter->pdev;
410
411 chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3));
412 /* clear chicken3.25:24 */
413 chicken &= 0xFCFFFFFF;
414 /*
415 * if gen1 and B0, set F1020 - if gen 2, do nothing
416 * if gen2 set to F1000
417 */
418 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN);
419 if (pos == 0xC0) {
420 pci_read_config_dword(pdev, pos + 0x10, &control);
421 if ((control & 0x000F0000) != 0x00020000) {
422 /* set chicken3.24 if gen1 */
423 chicken |= 0x01000000;
424 }
425 dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n");
426 c8c9value = 0xF1000;
427 } else {
428 /* set chicken3.24 if gen1 */
429 chicken |= 0x01000000;
430 dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n");
431 if (adapter->ahw.revision_id == NX_P3_B0)
432 c8c9value = 0xF1020;
433 else
434 c8c9value = 0;
435 }
436
437 NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken);
438
439 if (!c8c9value)
440 return;
441
442 pdevfuncsave = pdev->devfn;
443 if (pdevfuncsave & 0x07)
444 return;
445
446 for (i = 0; i < 8; i++) {
447 pci_read_config_dword(pdev, pos + 8, &control);
448 pci_read_config_dword(pdev, pos + 8, &control);
449 pci_write_config_dword(pdev, pos + 8, c8c9value);
450 pdev->devfn++;
451 }
452 pdev->devfn = pdevfuncsave;
453 }
454
455 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
456 {
457 u32 control;
458
459 if (pdev->msix_cap) {
460 pci_read_config_dword(pdev, pdev->msix_cap, &control);
461 if (enable)
462 control |= PCI_MSIX_FLAGS_ENABLE;
463 else
464 control = 0;
465 pci_write_config_dword(pdev, pdev->msix_cap, control);
466 }
467 }
468
469 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
470 {
471 int i;
472
473 for (i = 0; i < count; i++)
474 adapter->msix_entries[i].entry = i;
475 }
476
477 static int
478 netxen_read_mac_addr(struct netxen_adapter *adapter)
479 {
480 int i;
481 unsigned char *p;
482 u64 mac_addr;
483 struct net_device *netdev = adapter->netdev;
484 struct pci_dev *pdev = adapter->pdev;
485
486 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
487 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
488 return -EIO;
489 } else {
490 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
491 return -EIO;
492 }
493
494 p = (unsigned char *)&mac_addr;
495 for (i = 0; i < 6; i++)
496 netdev->dev_addr[i] = *(p + 5 - i);
497
498 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
499
500 /* set station address */
501
502 if (!is_valid_ether_addr(netdev->dev_addr))
503 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
504
505 return 0;
506 }
507
508 static int netxen_nic_set_mac(struct net_device *netdev, void *p)
509 {
510 struct netxen_adapter *adapter = netdev_priv(netdev);
511 struct sockaddr *addr = p;
512
513 if (!is_valid_ether_addr(addr->sa_data))
514 return -EADDRNOTAVAIL;
515
516 if (netif_running(netdev)) {
517 netif_device_detach(netdev);
518 netxen_napi_disable(adapter);
519 }
520
521 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
522 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
523 adapter->macaddr_set(adapter, addr->sa_data);
524
525 if (netif_running(netdev)) {
526 netif_device_attach(netdev);
527 netxen_napi_enable(adapter);
528 }
529 return 0;
530 }
531
532 static void netxen_set_multicast_list(struct net_device *dev)
533 {
534 struct netxen_adapter *adapter = netdev_priv(dev);
535
536 adapter->set_multi(dev);
537 }
538
539 static netdev_features_t netxen_fix_features(struct net_device *dev,
540 netdev_features_t features)
541 {
542 if (!(features & NETIF_F_RXCSUM)) {
543 netdev_info(dev, "disabling LRO as RXCSUM is off\n");
544
545 features &= ~NETIF_F_LRO;
546 }
547
548 return features;
549 }
550
551 static int netxen_set_features(struct net_device *dev,
552 netdev_features_t features)
553 {
554 struct netxen_adapter *adapter = netdev_priv(dev);
555 int hw_lro;
556
557 if (!((dev->features ^ features) & NETIF_F_LRO))
558 return 0;
559
560 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED
561 : NETXEN_NIC_LRO_DISABLED;
562
563 if (netxen_config_hw_lro(adapter, hw_lro))
564 return -EIO;
565
566 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter))
567 return -EIO;
568
569 return 0;
570 }
571
572 static const struct net_device_ops netxen_netdev_ops = {
573 .ndo_open = netxen_nic_open,
574 .ndo_stop = netxen_nic_close,
575 .ndo_start_xmit = netxen_nic_xmit_frame,
576 .ndo_get_stats64 = netxen_nic_get_stats,
577 .ndo_validate_addr = eth_validate_addr,
578 .ndo_set_rx_mode = netxen_set_multicast_list,
579 .ndo_set_mac_address = netxen_nic_set_mac,
580 .ndo_change_mtu = netxen_nic_change_mtu,
581 .ndo_tx_timeout = netxen_tx_timeout,
582 .ndo_fix_features = netxen_fix_features,
583 .ndo_set_features = netxen_set_features,
584 #ifdef CONFIG_NET_POLL_CONTROLLER
585 .ndo_poll_controller = netxen_nic_poll_controller,
586 #endif
587 };
588
589 static inline bool netxen_function_zero(struct pci_dev *pdev)
590 {
591 return (PCI_FUNC(pdev->devfn) == 0) ? true : false;
592 }
593
594 static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter,
595 u32 mode)
596 {
597 NXWR32(adapter, NETXEN_INTR_MODE_REG, mode);
598 }
599
600 static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter)
601 {
602 return NXRD32(adapter, NETXEN_INTR_MODE_REG);
603 }
604
605 static void
606 netxen_initialize_interrupt_registers(struct netxen_adapter *adapter)
607 {
608 struct netxen_legacy_intr_set *legacy_intrp;
609 u32 tgt_status_reg, int_state_reg;
610
611 if (adapter->ahw.revision_id >= NX_P3_B0)
612 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
613 else
614 legacy_intrp = &legacy_intr[0];
615
616 tgt_status_reg = legacy_intrp->tgt_status_reg;
617 int_state_reg = ISR_INT_STATE_REG;
618
619 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
620 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg);
621 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
622 legacy_intrp->tgt_mask_reg);
623 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
624 legacy_intrp->pci_int_reg);
625 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
626
627 if (adapter->ahw.revision_id >= NX_P3_B1)
628 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
629 int_state_reg);
630 else
631 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
632 CRB_INT_VECTOR);
633 }
634
635 static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter,
636 int num_msix)
637 {
638 struct pci_dev *pdev = adapter->pdev;
639 u32 value;
640 int err;
641
642 if (adapter->msix_supported) {
643 netxen_init_msix_entries(adapter, num_msix);
644 err = pci_enable_msix_range(pdev, adapter->msix_entries,
645 num_msix, num_msix);
646 if (err > 0) {
647 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
648 netxen_set_msix_bit(pdev, 1);
649
650 if (adapter->rss_supported)
651 adapter->max_sds_rings = num_msix;
652
653 dev_info(&pdev->dev, "using msi-x interrupts\n");
654 return 0;
655 }
656 /* fall through for msi */
657 }
658
659 if (use_msi && !pci_enable_msi(pdev)) {
660 value = msi_tgt_status[adapter->ahw.pci_func];
661 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
662 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value);
663 adapter->msix_entries[0].vector = pdev->irq;
664 dev_info(&pdev->dev, "using msi interrupts\n");
665 return 0;
666 }
667
668 dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n");
669 return -EIO;
670 }
671
672 static int netxen_setup_intr(struct netxen_adapter *adapter)
673 {
674 struct pci_dev *pdev = adapter->pdev;
675 int num_msix;
676
677 if (adapter->rss_supported)
678 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
679 MSIX_ENTRIES_PER_ADAPTER : 2;
680 else
681 num_msix = 1;
682
683 adapter->max_sds_rings = 1;
684 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
685
686 netxen_initialize_interrupt_registers(adapter);
687 netxen_set_msix_bit(pdev, 0);
688
689 if (netxen_function_zero(pdev)) {
690 if (!netxen_setup_msi_interrupts(adapter, num_msix))
691 netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE);
692 else
693 netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE);
694 } else {
695 if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE &&
696 netxen_setup_msi_interrupts(adapter, num_msix)) {
697 dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n");
698 return -EIO;
699 }
700 }
701
702 if (!NETXEN_IS_MSI_FAMILY(adapter)) {
703 adapter->msix_entries[0].vector = pdev->irq;
704 dev_info(&pdev->dev, "using legacy interrupts\n");
705 }
706 return 0;
707 }
708
709 static void
710 netxen_teardown_intr(struct netxen_adapter *adapter)
711 {
712 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
713 pci_disable_msix(adapter->pdev);
714 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
715 pci_disable_msi(adapter->pdev);
716 }
717
718 static void
719 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
720 {
721 if (adapter->ahw.db_base != NULL)
722 iounmap(adapter->ahw.db_base);
723 if (adapter->ahw.pci_base0 != NULL)
724 iounmap(adapter->ahw.pci_base0);
725 if (adapter->ahw.pci_base1 != NULL)
726 iounmap(adapter->ahw.pci_base1);
727 if (adapter->ahw.pci_base2 != NULL)
728 iounmap(adapter->ahw.pci_base2);
729 }
730
731 static int
732 netxen_setup_pci_map(struct netxen_adapter *adapter)
733 {
734 void __iomem *db_ptr = NULL;
735
736 resource_size_t mem_base, db_base;
737 unsigned long mem_len, db_len = 0;
738
739 struct pci_dev *pdev = adapter->pdev;
740 int pci_func = adapter->ahw.pci_func;
741 struct netxen_hardware_context *ahw = &adapter->ahw;
742
743 int err = 0;
744
745 /*
746 * Set the CRB window to invalid. If any register in window 0 is
747 * accessed it should set the window to 0 and then reset it to 1.
748 */
749 adapter->ahw.crb_win = -1;
750 adapter->ahw.ocm_win = -1;
751
752 /* remap phys address */
753 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
754 mem_len = pci_resource_len(pdev, 0);
755
756 /* 128 Meg of memory */
757 if (mem_len == NETXEN_PCI_128MB_SIZE) {
758
759 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
760 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
761 SECOND_PAGE_GROUP_SIZE);
762 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
763 THIRD_PAGE_GROUP_SIZE);
764 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
765 ahw->pci_base2 == NULL) {
766 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
767 err = -EIO;
768 goto err_out;
769 }
770
771 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
772
773 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
774
775 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
776 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
777 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
778 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
779 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
780 err = -EIO;
781 goto err_out;
782 }
783
784 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
785
786 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
787 if (ahw->pci_base0 == NULL) {
788 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
789 return -EIO;
790 }
791 ahw->pci_len0 = mem_len;
792 } else {
793 return -EIO;
794 }
795
796 netxen_setup_hwops(adapter);
797
798 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
799
800 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
801 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
802 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
803
804 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
805 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
806 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
807 }
808
809 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
810 goto skip_doorbell;
811
812 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
813 db_len = pci_resource_len(pdev, 4);
814
815 if (db_len == 0) {
816 printk(KERN_ERR "%s: doorbell is disabled\n",
817 netxen_nic_driver_name);
818 err = -EIO;
819 goto err_out;
820 }
821
822 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
823 if (!db_ptr) {
824 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
825 netxen_nic_driver_name);
826 err = -EIO;
827 goto err_out;
828 }
829
830 skip_doorbell:
831 adapter->ahw.db_base = db_ptr;
832 adapter->ahw.db_len = db_len;
833 return 0;
834
835 err_out:
836 netxen_cleanup_pci_map(adapter);
837 return err;
838 }
839
840 static void
841 netxen_check_options(struct netxen_adapter *adapter)
842 {
843 u32 fw_major, fw_minor, fw_build, prev_fw_version;
844 char brd_name[NETXEN_MAX_SHORT_NAME];
845 char serial_num[32];
846 int i, offset, val, err;
847 __le32 *ptr32;
848 struct pci_dev *pdev = adapter->pdev;
849
850 adapter->driver_mismatch = 0;
851
852 ptr32 = (__le32 *)&serial_num;
853 offset = NX_FW_SERIAL_NUM_OFFSET;
854 for (i = 0; i < 8; i++) {
855 err = netxen_rom_fast_read(adapter, offset, &val);
856 if (err) {
857 dev_err(&pdev->dev, "error reading board info\n");
858 adapter->driver_mismatch = 1;
859 return;
860 }
861 ptr32[i] = cpu_to_le32(val);
862 offset += sizeof(u32);
863 }
864
865 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
866 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
867 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
868 prev_fw_version = adapter->fw_version;
869 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
870
871 /* Get FW Mini Coredump template and store it */
872 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
873 if (adapter->mdump.md_template == NULL ||
874 adapter->fw_version > prev_fw_version) {
875 kfree(adapter->mdump.md_template);
876 adapter->mdump.md_template = NULL;
877 err = netxen_setup_minidump(adapter);
878 if (err)
879 dev_err(&adapter->pdev->dev,
880 "Failed to setup minidump rcode = %d\n", err);
881 }
882 }
883
884 if (adapter->portnum == 0) {
885 if (netxen_nic_get_brd_name_by_type(adapter->ahw.board_type,
886 brd_name))
887 strcpy(serial_num, "Unknown");
888
889 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
890 module_name(THIS_MODULE),
891 brd_name, serial_num, adapter->ahw.revision_id);
892 }
893
894 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
895 adapter->driver_mismatch = 1;
896 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
897 fw_major, fw_minor, fw_build);
898 return;
899 }
900
901 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
902 i = NXRD32(adapter, NETXEN_SRE_MISC);
903 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
904 }
905
906 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n",
907 NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build,
908 adapter->ahw.cut_through ? "cut-through" : "legacy");
909
910 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
911 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
912
913 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
914 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
915 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
916 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
917 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
918 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
919 }
920
921 adapter->msix_supported = 0;
922 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
923 adapter->msix_supported = !!use_msi_x;
924 adapter->rss_supported = !!use_msi_x;
925 } else {
926 u32 flashed_ver = 0;
927 netxen_rom_fast_read(adapter,
928 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
929 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
930
931 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
932 switch (adapter->ahw.board_type) {
933 case NETXEN_BRDTYPE_P2_SB31_10G:
934 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
935 adapter->msix_supported = !!use_msi_x;
936 adapter->rss_supported = !!use_msi_x;
937 break;
938 default:
939 break;
940 }
941 }
942 }
943
944 adapter->num_txd = MAX_CMD_DESCRIPTORS;
945
946 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
947 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
948 adapter->max_rds_rings = 3;
949 } else {
950 adapter->num_lro_rxd = 0;
951 adapter->max_rds_rings = 2;
952 }
953 }
954
955 static int
956 netxen_start_firmware(struct netxen_adapter *adapter)
957 {
958 int val, err, first_boot;
959 struct pci_dev *pdev = adapter->pdev;
960
961 /* required for NX2031 dummy dma */
962 err = nx_set_dma_mask(adapter);
963 if (err)
964 return err;
965
966 err = netxen_can_start_firmware(adapter);
967
968 if (err < 0)
969 return err;
970
971 if (!err)
972 goto wait_init;
973
974 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
975
976 err = netxen_check_hw_init(adapter, first_boot);
977 if (err) {
978 dev_err(&pdev->dev, "error in init HW init sequence\n");
979 return err;
980 }
981
982 netxen_request_firmware(adapter);
983
984 err = netxen_need_fw_reset(adapter);
985 if (err < 0)
986 goto err_out;
987 if (err == 0)
988 goto pcie_strap_init;
989
990 if (first_boot != 0x55555555) {
991 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
992 netxen_pinit_from_rom(adapter);
993 msleep(1);
994 }
995
996 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
997 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
998 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
999
1000 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1001 netxen_set_port_mode(adapter);
1002
1003 err = netxen_load_firmware(adapter);
1004 if (err)
1005 goto err_out;
1006
1007 netxen_release_firmware(adapter);
1008
1009 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1010
1011 /* Initialize multicast addr pool owners */
1012 val = 0x7654;
1013 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
1014 val |= 0x0f000000;
1015 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
1016
1017 }
1018
1019 err = netxen_init_dummy_dma(adapter);
1020 if (err)
1021 goto err_out;
1022
1023 /*
1024 * Tell the hardware our version number.
1025 */
1026 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
1027 | ((_NETXEN_NIC_LINUX_MINOR << 8))
1028 | (_NETXEN_NIC_LINUX_SUBVERSION);
1029 NXWR32(adapter, CRB_DRIVER_VERSION, val);
1030
1031 pcie_strap_init:
1032 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1033 netxen_pcie_strap_init(adapter);
1034
1035 wait_init:
1036 /* Handshake with the card before we register the devices. */
1037 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
1038 if (err) {
1039 netxen_free_dummy_dma(adapter);
1040 goto err_out;
1041 }
1042
1043 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
1044
1045 nx_update_dma_mask(adapter);
1046
1047 netxen_check_options(adapter);
1048
1049 adapter->need_fw_reset = 0;
1050
1051 /* fall through and release firmware */
1052
1053 err_out:
1054 netxen_release_firmware(adapter);
1055 return err;
1056 }
1057
1058 static int
1059 netxen_nic_request_irq(struct netxen_adapter *adapter)
1060 {
1061 irq_handler_t handler;
1062 struct nx_host_sds_ring *sds_ring;
1063 int err, ring;
1064
1065 unsigned long flags = 0;
1066 struct net_device *netdev = adapter->netdev;
1067 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1068
1069 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
1070 handler = netxen_msix_intr;
1071 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
1072 handler = netxen_msi_intr;
1073 else {
1074 flags |= IRQF_SHARED;
1075 handler = netxen_intr;
1076 }
1077 adapter->irq = netdev->irq;
1078
1079 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1080 sds_ring = &recv_ctx->sds_rings[ring];
1081 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1082 err = request_irq(sds_ring->irq, handler,
1083 flags, sds_ring->name, sds_ring);
1084 if (err)
1085 return err;
1086 }
1087
1088 return 0;
1089 }
1090
1091 static void
1092 netxen_nic_free_irq(struct netxen_adapter *adapter)
1093 {
1094 int ring;
1095 struct nx_host_sds_ring *sds_ring;
1096
1097 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1098
1099 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1100 sds_ring = &recv_ctx->sds_rings[ring];
1101 free_irq(sds_ring->irq, sds_ring);
1102 }
1103 }
1104
1105 static void
1106 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
1107 {
1108 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
1109 adapter->coal.normal.data.rx_time_us =
1110 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
1111 adapter->coal.normal.data.rx_packets =
1112 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
1113 adapter->coal.normal.data.tx_time_us =
1114 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
1115 adapter->coal.normal.data.tx_packets =
1116 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
1117 }
1118
1119 /* with rtnl_lock */
1120 static int
1121 __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1122 {
1123 int err;
1124
1125 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1126 return -EIO;
1127
1128 err = adapter->init_port(adapter, adapter->physical_port);
1129 if (err) {
1130 printk(KERN_ERR "%s: Failed to initialize port %d\n",
1131 netxen_nic_driver_name, adapter->portnum);
1132 return err;
1133 }
1134 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1135 adapter->macaddr_set(adapter, adapter->mac_addr);
1136
1137 adapter->set_multi(netdev);
1138 adapter->set_mtu(adapter, netdev->mtu);
1139
1140 adapter->ahw.linkup = 0;
1141
1142 if (adapter->max_sds_rings > 1)
1143 netxen_config_rss(adapter, 1);
1144
1145 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1146 netxen_config_intr_coalesce(adapter);
1147
1148 if (netdev->features & NETIF_F_LRO)
1149 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
1150
1151 netxen_napi_enable(adapter);
1152
1153 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1154 netxen_linkevent_request(adapter, 1);
1155 else
1156 netxen_nic_set_link_parameters(adapter);
1157
1158 set_bit(__NX_DEV_UP, &adapter->state);
1159 return 0;
1160 }
1161
1162 /* Usage: During resume and firmware recovery module.*/
1163
1164 static inline int
1165 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1166 {
1167 int err = 0;
1168
1169 rtnl_lock();
1170 if (netif_running(netdev))
1171 err = __netxen_nic_up(adapter, netdev);
1172 rtnl_unlock();
1173
1174 return err;
1175 }
1176
1177 /* with rtnl_lock */
1178 static void
1179 __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1180 {
1181 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1182 return;
1183
1184 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1185 return;
1186
1187 smp_mb();
1188 netif_carrier_off(netdev);
1189 netif_tx_disable(netdev);
1190
1191 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1192 netxen_linkevent_request(adapter, 0);
1193
1194 if (adapter->stop_port)
1195 adapter->stop_port(adapter);
1196
1197 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1198 netxen_p3_free_mac_list(adapter);
1199
1200 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1201
1202 netxen_napi_disable(adapter);
1203
1204 netxen_release_tx_buffers(adapter);
1205 }
1206
1207 /* Usage: During suspend and firmware recovery module */
1208
1209 static inline void
1210 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1211 {
1212 rtnl_lock();
1213 if (netif_running(netdev))
1214 __netxen_nic_down(adapter, netdev);
1215 rtnl_unlock();
1216
1217 }
1218
1219 static int
1220 netxen_nic_attach(struct netxen_adapter *adapter)
1221 {
1222 struct net_device *netdev = adapter->netdev;
1223 struct pci_dev *pdev = adapter->pdev;
1224 int err, ring;
1225 struct nx_host_rds_ring *rds_ring;
1226 struct nx_host_tx_ring *tx_ring;
1227 u32 capab2;
1228
1229 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1230 return 0;
1231
1232 err = netxen_init_firmware(adapter);
1233 if (err)
1234 return err;
1235
1236 adapter->flags &= ~NETXEN_FW_MSS_CAP;
1237 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) {
1238 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2);
1239 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1240 adapter->flags |= NETXEN_FW_MSS_CAP;
1241 }
1242
1243 err = netxen_napi_add(adapter, netdev);
1244 if (err)
1245 return err;
1246
1247 err = netxen_alloc_sw_resources(adapter);
1248 if (err) {
1249 printk(KERN_ERR "%s: Error in setting sw resources\n",
1250 netdev->name);
1251 return err;
1252 }
1253
1254 err = netxen_alloc_hw_resources(adapter);
1255 if (err) {
1256 printk(KERN_ERR "%s: Error in setting hw resources\n",
1257 netdev->name);
1258 goto err_out_free_sw;
1259 }
1260
1261 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1262 tx_ring = adapter->tx_ring;
1263 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1264 crb_cmd_producer[adapter->portnum]);
1265 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1266 crb_cmd_consumer[adapter->portnum]);
1267
1268 tx_ring->producer = 0;
1269 tx_ring->sw_consumer = 0;
1270
1271 netxen_nic_update_cmd_producer(adapter, tx_ring);
1272 netxen_nic_update_cmd_consumer(adapter, tx_ring);
1273 }
1274
1275 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1276 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1277 netxen_post_rx_buffers(adapter, ring, rds_ring);
1278 }
1279
1280 err = netxen_nic_request_irq(adapter);
1281 if (err) {
1282 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1283 netdev->name);
1284 goto err_out_free_rxbuf;
1285 }
1286
1287 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1288 netxen_nic_init_coalesce_defaults(adapter);
1289
1290 netxen_create_sysfs_entries(adapter);
1291
1292 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1293 return 0;
1294
1295 err_out_free_rxbuf:
1296 netxen_release_rx_buffers(adapter);
1297 netxen_free_hw_resources(adapter);
1298 err_out_free_sw:
1299 netxen_free_sw_resources(adapter);
1300 return err;
1301 }
1302
1303 static void
1304 netxen_nic_detach(struct netxen_adapter *adapter)
1305 {
1306 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1307 return;
1308
1309 netxen_remove_sysfs_entries(adapter);
1310
1311 netxen_free_hw_resources(adapter);
1312 netxen_release_rx_buffers(adapter);
1313 netxen_nic_free_irq(adapter);
1314 netxen_napi_del(adapter);
1315 netxen_free_sw_resources(adapter);
1316
1317 adapter->is_up = 0;
1318 }
1319
1320 int
1321 netxen_nic_reset_context(struct netxen_adapter *adapter)
1322 {
1323 int err = 0;
1324 struct net_device *netdev = adapter->netdev;
1325
1326 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1327 return -EBUSY;
1328
1329 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1330
1331 netif_device_detach(netdev);
1332
1333 if (netif_running(netdev))
1334 __netxen_nic_down(adapter, netdev);
1335
1336 netxen_nic_detach(adapter);
1337
1338 if (netif_running(netdev)) {
1339 err = netxen_nic_attach(adapter);
1340 if (!err)
1341 err = __netxen_nic_up(adapter, netdev);
1342
1343 if (err)
1344 goto done;
1345 }
1346
1347 netif_device_attach(netdev);
1348 }
1349
1350 done:
1351 clear_bit(__NX_RESETTING, &adapter->state);
1352 return err;
1353 }
1354
1355 static int
1356 netxen_setup_netdev(struct netxen_adapter *adapter,
1357 struct net_device *netdev)
1358 {
1359 int err = 0;
1360 struct pci_dev *pdev = adapter->pdev;
1361
1362 adapter->mc_enabled = 0;
1363 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1364 adapter->max_mc_count = 38;
1365 else
1366 adapter->max_mc_count = 16;
1367
1368 netdev->netdev_ops = &netxen_netdev_ops;
1369 netdev->watchdog_timeo = 5*HZ;
1370
1371 netxen_nic_change_mtu(netdev, netdev->mtu);
1372
1373 netdev->ethtool_ops = &netxen_nic_ethtool_ops;
1374
1375 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
1376 NETIF_F_RXCSUM;
1377
1378 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1379 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1380
1381 netdev->vlan_features |= netdev->hw_features;
1382
1383 if (adapter->pci_using_dac) {
1384 netdev->features |= NETIF_F_HIGHDMA;
1385 netdev->vlan_features |= NETIF_F_HIGHDMA;
1386 }
1387
1388 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1389 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
1390
1391 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1392 netdev->hw_features |= NETIF_F_LRO;
1393
1394 netdev->features |= netdev->hw_features;
1395
1396 netdev->irq = adapter->msix_entries[0].vector;
1397
1398 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1399
1400 if (netxen_read_mac_addr(adapter))
1401 dev_warn(&pdev->dev, "failed to read mac addr\n");
1402
1403 netif_carrier_off(netdev);
1404
1405 err = register_netdev(netdev);
1406 if (err) {
1407 dev_err(&pdev->dev, "failed to register net device\n");
1408 return err;
1409 }
1410
1411 return 0;
1412 }
1413
1414 #define NETXEN_ULA_ADAPTER_KEY (0xdaddad01)
1415 #define NETXEN_NON_ULA_ADAPTER_KEY (0xdaddad00)
1416
1417 static void netxen_read_ula_info(struct netxen_adapter *adapter)
1418 {
1419 u32 temp;
1420
1421 /* Print ULA info only once for an adapter */
1422 if (adapter->portnum != 0)
1423 return;
1424
1425 temp = NXRD32(adapter, NETXEN_ULA_KEY);
1426 switch (temp) {
1427 case NETXEN_ULA_ADAPTER_KEY:
1428 dev_info(&adapter->pdev->dev, "ULA adapter");
1429 break;
1430 case NETXEN_NON_ULA_ADAPTER_KEY:
1431 dev_info(&adapter->pdev->dev, "non ULA adapter");
1432 break;
1433 default:
1434 break;
1435 }
1436
1437 return;
1438 }
1439
1440 #ifdef CONFIG_PCIEAER
1441 static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1442 {
1443 struct pci_dev *pdev = adapter->pdev;
1444 struct pci_dev *root = pdev->bus->self;
1445 u32 aer_pos;
1446
1447 /* root bus? */
1448 if (!root)
1449 return;
1450
1451 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1452 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1453 return;
1454
1455 if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT)
1456 return;
1457
1458 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1459 if (!aer_pos)
1460 return;
1461
1462 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1463 }
1464 #endif
1465
1466 static int
1467 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1468 {
1469 struct net_device *netdev = NULL;
1470 struct netxen_adapter *adapter = NULL;
1471 int i = 0, err;
1472 int pci_func_id = PCI_FUNC(pdev->devfn);
1473 uint8_t revision_id;
1474 u32 val;
1475
1476 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1477 pr_warn("%s: chip revisions between 0x%x-0x%x will not be enabled\n",
1478 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
1479 return -ENODEV;
1480 }
1481
1482 if ((err = pci_enable_device(pdev)))
1483 return err;
1484
1485 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1486 err = -ENODEV;
1487 goto err_out_disable_pdev;
1488 }
1489
1490 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1491 goto err_out_disable_pdev;
1492
1493 if (NX_IS_REVISION_P3(pdev->revision))
1494 pci_enable_pcie_error_reporting(pdev);
1495
1496 pci_set_master(pdev);
1497
1498 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1499 if(!netdev) {
1500 err = -ENOMEM;
1501 goto err_out_free_res;
1502 }
1503
1504 SET_NETDEV_DEV(netdev, &pdev->dev);
1505
1506 adapter = netdev_priv(netdev);
1507 adapter->netdev = netdev;
1508 adapter->pdev = pdev;
1509 adapter->ahw.pci_func = pci_func_id;
1510
1511 revision_id = pdev->revision;
1512 adapter->ahw.revision_id = revision_id;
1513
1514 rwlock_init(&adapter->ahw.crb_lock);
1515 spin_lock_init(&adapter->ahw.mem_lock);
1516
1517 spin_lock_init(&adapter->tx_clean_lock);
1518 INIT_LIST_HEAD(&adapter->mac_list);
1519 INIT_LIST_HEAD(&adapter->ip_list);
1520
1521 err = netxen_setup_pci_map(adapter);
1522 if (err)
1523 goto err_out_free_netdev;
1524
1525 /* This will be reset for mezz cards */
1526 adapter->portnum = pci_func_id;
1527
1528 err = netxen_nic_get_board_info(adapter);
1529 if (err) {
1530 dev_err(&pdev->dev, "Error getting board config info.\n");
1531 goto err_out_iounmap;
1532 }
1533
1534 #ifdef CONFIG_PCIEAER
1535 netxen_mask_aer_correctable(adapter);
1536 #endif
1537
1538 /* Mezz cards have PCI function 0,2,3 enabled */
1539 switch (adapter->ahw.board_type) {
1540 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1541 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1542 if (pci_func_id >= 2)
1543 adapter->portnum = pci_func_id - 2;
1544 break;
1545 default:
1546 break;
1547 }
1548
1549 err = netxen_check_flash_fw_compatibility(adapter);
1550 if (err)
1551 goto err_out_iounmap;
1552
1553 if (adapter->portnum == 0) {
1554 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1555 if (val != 0xffffffff && val != 0) {
1556 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1557 adapter->need_fw_reset = 1;
1558 }
1559 }
1560
1561 err = netxen_start_firmware(adapter);
1562 if (err)
1563 goto err_out_decr_ref;
1564
1565 /*
1566 * See if the firmware gave us a virtual-physical port mapping.
1567 */
1568 adapter->physical_port = adapter->portnum;
1569 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1570 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1571 if (i != 0x55555555)
1572 adapter->physical_port = i;
1573 }
1574
1575 netxen_nic_clear_stats(adapter);
1576
1577 err = netxen_setup_intr(adapter);
1578
1579 if (err) {
1580 dev_err(&adapter->pdev->dev,
1581 "Failed to setup interrupts, error = %d\n", err);
1582 goto err_out_disable_msi;
1583 }
1584
1585 netxen_read_ula_info(adapter);
1586
1587 err = netxen_setup_netdev(adapter, netdev);
1588 if (err)
1589 goto err_out_disable_msi;
1590
1591 pci_set_drvdata(pdev, adapter);
1592
1593 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1594
1595 switch (adapter->ahw.port_type) {
1596 case NETXEN_NIC_GBE:
1597 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1598 adapter->netdev->name);
1599 break;
1600 case NETXEN_NIC_XGBE:
1601 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1602 adapter->netdev->name);
1603 break;
1604 }
1605
1606 netxen_create_diag_entries(adapter);
1607
1608 return 0;
1609
1610 err_out_disable_msi:
1611 netxen_teardown_intr(adapter);
1612
1613 netxen_free_dummy_dma(adapter);
1614
1615 err_out_decr_ref:
1616 nx_decr_dev_ref_cnt(adapter);
1617
1618 err_out_iounmap:
1619 netxen_cleanup_pci_map(adapter);
1620
1621 err_out_free_netdev:
1622 free_netdev(netdev);
1623
1624 err_out_free_res:
1625 pci_release_regions(pdev);
1626
1627 err_out_disable_pdev:
1628 pci_disable_device(pdev);
1629 return err;
1630 }
1631
1632 static
1633 void netxen_cleanup_minidump(struct netxen_adapter *adapter)
1634 {
1635 kfree(adapter->mdump.md_template);
1636 adapter->mdump.md_template = NULL;
1637
1638 if (adapter->mdump.md_capture_buff) {
1639 vfree(adapter->mdump.md_capture_buff);
1640 adapter->mdump.md_capture_buff = NULL;
1641 }
1642 }
1643
1644 static void netxen_nic_remove(struct pci_dev *pdev)
1645 {
1646 struct netxen_adapter *adapter;
1647 struct net_device *netdev;
1648
1649 adapter = pci_get_drvdata(pdev);
1650 if (adapter == NULL)
1651 return;
1652
1653 netdev = adapter->netdev;
1654
1655 netxen_cancel_fw_work(adapter);
1656
1657 unregister_netdev(netdev);
1658
1659 cancel_work_sync(&adapter->tx_timeout_task);
1660
1661 netxen_free_ip_list(adapter, false);
1662 netxen_nic_detach(adapter);
1663
1664 nx_decr_dev_ref_cnt(adapter);
1665
1666 if (adapter->portnum == 0)
1667 netxen_free_dummy_dma(adapter);
1668
1669 clear_bit(__NX_RESETTING, &adapter->state);
1670
1671 netxen_teardown_intr(adapter);
1672 netxen_set_interrupt_mode(adapter, 0);
1673 netxen_remove_diag_entries(adapter);
1674
1675 netxen_cleanup_pci_map(adapter);
1676
1677 netxen_release_firmware(adapter);
1678
1679 if (NX_IS_REVISION_P3(pdev->revision)) {
1680 netxen_cleanup_minidump(adapter);
1681 pci_disable_pcie_error_reporting(pdev);
1682 }
1683
1684 pci_release_regions(pdev);
1685 pci_disable_device(pdev);
1686
1687 free_netdev(netdev);
1688 }
1689
1690 static void netxen_nic_detach_func(struct netxen_adapter *adapter)
1691 {
1692 struct net_device *netdev = adapter->netdev;
1693
1694 netif_device_detach(netdev);
1695
1696 netxen_cancel_fw_work(adapter);
1697
1698 if (netif_running(netdev))
1699 netxen_nic_down(adapter, netdev);
1700
1701 cancel_work_sync(&adapter->tx_timeout_task);
1702
1703 netxen_nic_detach(adapter);
1704
1705 if (adapter->portnum == 0)
1706 netxen_free_dummy_dma(adapter);
1707
1708 nx_decr_dev_ref_cnt(adapter);
1709
1710 clear_bit(__NX_RESETTING, &adapter->state);
1711 }
1712
1713 static int netxen_nic_attach_func(struct pci_dev *pdev)
1714 {
1715 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1716 struct net_device *netdev = adapter->netdev;
1717 int err;
1718
1719 err = pci_enable_device(pdev);
1720 if (err)
1721 return err;
1722
1723 pci_set_power_state(pdev, PCI_D0);
1724 pci_set_master(pdev);
1725 pci_restore_state(pdev);
1726
1727 adapter->ahw.crb_win = -1;
1728 adapter->ahw.ocm_win = -1;
1729
1730 err = netxen_start_firmware(adapter);
1731 if (err) {
1732 dev_err(&pdev->dev, "failed to start firmware\n");
1733 return err;
1734 }
1735
1736 if (netif_running(netdev)) {
1737 err = netxen_nic_attach(adapter);
1738 if (err)
1739 goto err_out;
1740
1741 err = netxen_nic_up(adapter, netdev);
1742 if (err)
1743 goto err_out_detach;
1744
1745 netxen_restore_indev_addr(netdev, NETDEV_UP);
1746 }
1747
1748 netif_device_attach(netdev);
1749 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1750 return 0;
1751
1752 err_out_detach:
1753 netxen_nic_detach(adapter);
1754 err_out:
1755 nx_decr_dev_ref_cnt(adapter);
1756 return err;
1757 }
1758
1759 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1760 pci_channel_state_t state)
1761 {
1762 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1763
1764 if (state == pci_channel_io_perm_failure)
1765 return PCI_ERS_RESULT_DISCONNECT;
1766
1767 if (nx_dev_request_aer(adapter))
1768 return PCI_ERS_RESULT_RECOVERED;
1769
1770 netxen_nic_detach_func(adapter);
1771
1772 pci_disable_device(pdev);
1773
1774 return PCI_ERS_RESULT_NEED_RESET;
1775 }
1776
1777 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1778 {
1779 int err = 0;
1780
1781 err = netxen_nic_attach_func(pdev);
1782
1783 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1784 }
1785
1786 static void netxen_io_resume(struct pci_dev *pdev)
1787 {
1788 pci_cleanup_aer_uncorrect_error_status(pdev);
1789 }
1790
1791 static void netxen_nic_shutdown(struct pci_dev *pdev)
1792 {
1793 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1794
1795 netxen_nic_detach_func(adapter);
1796
1797 if (pci_save_state(pdev))
1798 return;
1799
1800 if (netxen_nic_wol_supported(adapter)) {
1801 pci_enable_wake(pdev, PCI_D3cold, 1);
1802 pci_enable_wake(pdev, PCI_D3hot, 1);
1803 }
1804
1805 pci_disable_device(pdev);
1806 }
1807
1808 #ifdef CONFIG_PM
1809 static int
1810 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1811 {
1812 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1813 int retval;
1814
1815 netxen_nic_detach_func(adapter);
1816
1817 retval = pci_save_state(pdev);
1818 if (retval)
1819 return retval;
1820
1821 if (netxen_nic_wol_supported(adapter)) {
1822 pci_enable_wake(pdev, PCI_D3cold, 1);
1823 pci_enable_wake(pdev, PCI_D3hot, 1);
1824 }
1825
1826 pci_disable_device(pdev);
1827 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1828
1829 return 0;
1830 }
1831
1832 static int
1833 netxen_nic_resume(struct pci_dev *pdev)
1834 {
1835 return netxen_nic_attach_func(pdev);
1836 }
1837 #endif
1838
1839 static int netxen_nic_open(struct net_device *netdev)
1840 {
1841 struct netxen_adapter *adapter = netdev_priv(netdev);
1842 int err = 0;
1843
1844 if (adapter->driver_mismatch)
1845 return -EIO;
1846
1847 err = netxen_nic_attach(adapter);
1848 if (err)
1849 return err;
1850
1851 err = __netxen_nic_up(adapter, netdev);
1852 if (err)
1853 goto err_out;
1854
1855 netif_start_queue(netdev);
1856
1857 return 0;
1858
1859 err_out:
1860 netxen_nic_detach(adapter);
1861 return err;
1862 }
1863
1864 /*
1865 * netxen_nic_close - Disables a network interface entry point
1866 */
1867 static int netxen_nic_close(struct net_device *netdev)
1868 {
1869 struct netxen_adapter *adapter = netdev_priv(netdev);
1870
1871 __netxen_nic_down(adapter, netdev);
1872 return 0;
1873 }
1874
1875 static void
1876 netxen_tso_check(struct net_device *netdev,
1877 struct nx_host_tx_ring *tx_ring,
1878 struct cmd_desc_type0 *first_desc,
1879 struct sk_buff *skb)
1880 {
1881 u8 opcode = TX_ETHER_PKT;
1882 __be16 protocol = skb->protocol;
1883 u16 flags = 0, vid = 0;
1884 u32 producer;
1885 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1886 struct cmd_desc_type0 *hwdesc;
1887 struct vlan_ethhdr *vh;
1888
1889 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1890
1891 vh = (struct vlan_ethhdr *)skb->data;
1892 protocol = vh->h_vlan_encapsulated_proto;
1893 flags = FLAGS_VLAN_TAGGED;
1894
1895 } else if (skb_vlan_tag_present(skb)) {
1896 flags = FLAGS_VLAN_OOB;
1897 vid = skb_vlan_tag_get(skb);
1898 netxen_set_tx_vlan_tci(first_desc, vid);
1899 vlan_oob = 1;
1900 }
1901
1902 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1903 skb_shinfo(skb)->gso_size > 0) {
1904
1905 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1906
1907 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1908 first_desc->total_hdr_length = hdr_len;
1909 if (vlan_oob) {
1910 first_desc->total_hdr_length += VLAN_HLEN;
1911 first_desc->tcp_hdr_offset = VLAN_HLEN;
1912 first_desc->ip_hdr_offset = VLAN_HLEN;
1913 /* Only in case of TSO on vlan device */
1914 flags |= FLAGS_VLAN_TAGGED;
1915 }
1916
1917 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1918 TX_TCP_LSO6 : TX_TCP_LSO;
1919 tso = 1;
1920
1921 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1922 u8 l4proto;
1923
1924 if (protocol == cpu_to_be16(ETH_P_IP)) {
1925 l4proto = ip_hdr(skb)->protocol;
1926
1927 if (l4proto == IPPROTO_TCP)
1928 opcode = TX_TCP_PKT;
1929 else if(l4proto == IPPROTO_UDP)
1930 opcode = TX_UDP_PKT;
1931 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1932 l4proto = ipv6_hdr(skb)->nexthdr;
1933
1934 if (l4proto == IPPROTO_TCP)
1935 opcode = TX_TCPV6_PKT;
1936 else if(l4proto == IPPROTO_UDP)
1937 opcode = TX_UDPV6_PKT;
1938 }
1939 }
1940
1941 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1942 first_desc->ip_hdr_offset += skb_network_offset(skb);
1943 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1944
1945 if (!tso)
1946 return;
1947
1948 /* For LSO, we need to copy the MAC/IP/TCP headers into
1949 * the descriptor ring
1950 */
1951 producer = tx_ring->producer;
1952 copied = 0;
1953 offset = 2;
1954
1955 if (vlan_oob) {
1956 /* Create a TSO vlan header template for firmware */
1957
1958 hwdesc = &tx_ring->desc_head[producer];
1959 tx_ring->cmd_buf_arr[producer].skb = NULL;
1960
1961 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1962 hdr_len + VLAN_HLEN);
1963
1964 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1965 skb_copy_from_linear_data(skb, vh, 12);
1966 vh->h_vlan_proto = htons(ETH_P_8021Q);
1967 vh->h_vlan_TCI = htons(vid);
1968 skb_copy_from_linear_data_offset(skb, 12,
1969 (char *)vh + 16, copy_len - 16);
1970
1971 copied = copy_len - VLAN_HLEN;
1972 offset = 0;
1973
1974 producer = get_next_index(producer, tx_ring->num_desc);
1975 }
1976
1977 while (copied < hdr_len) {
1978
1979 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1980 (hdr_len - copied));
1981
1982 hwdesc = &tx_ring->desc_head[producer];
1983 tx_ring->cmd_buf_arr[producer].skb = NULL;
1984
1985 skb_copy_from_linear_data_offset(skb, copied,
1986 (char *)hwdesc + offset, copy_len);
1987
1988 copied += copy_len;
1989 offset = 0;
1990
1991 producer = get_next_index(producer, tx_ring->num_desc);
1992 }
1993
1994 tx_ring->producer = producer;
1995 barrier();
1996 }
1997
1998 static int
1999 netxen_map_tx_skb(struct pci_dev *pdev,
2000 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
2001 {
2002 struct netxen_skb_frag *nf;
2003 struct skb_frag_struct *frag;
2004 int i, nr_frags;
2005 dma_addr_t map;
2006
2007 nr_frags = skb_shinfo(skb)->nr_frags;
2008 nf = &pbuf->frag_array[0];
2009
2010 map = pci_map_single(pdev, skb->data,
2011 skb_headlen(skb), PCI_DMA_TODEVICE);
2012 if (pci_dma_mapping_error(pdev, map))
2013 goto out_err;
2014
2015 nf->dma = map;
2016 nf->length = skb_headlen(skb);
2017
2018 for (i = 0; i < nr_frags; i++) {
2019 frag = &skb_shinfo(skb)->frags[i];
2020 nf = &pbuf->frag_array[i+1];
2021
2022 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
2023 DMA_TO_DEVICE);
2024 if (dma_mapping_error(&pdev->dev, map))
2025 goto unwind;
2026
2027 nf->dma = map;
2028 nf->length = skb_frag_size(frag);
2029 }
2030
2031 return 0;
2032
2033 unwind:
2034 while (--i >= 0) {
2035 nf = &pbuf->frag_array[i+1];
2036 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2037 nf->dma = 0ULL;
2038 }
2039
2040 nf = &pbuf->frag_array[0];
2041 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2042 nf->dma = 0ULL;
2043
2044 out_err:
2045 return -ENOMEM;
2046 }
2047
2048 static inline void
2049 netxen_clear_cmddesc(u64 *desc)
2050 {
2051 desc[0] = 0ULL;
2052 desc[2] = 0ULL;
2053 }
2054
2055 static netdev_tx_t
2056 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2057 {
2058 struct netxen_adapter *adapter = netdev_priv(netdev);
2059 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
2060 struct netxen_cmd_buffer *pbuf;
2061 struct netxen_skb_frag *buffrag;
2062 struct cmd_desc_type0 *hwdesc, *first_desc;
2063 struct pci_dev *pdev;
2064 int i, k;
2065 int delta = 0;
2066 struct skb_frag_struct *frag;
2067
2068 u32 producer;
2069 int frag_count, no_of_desc;
2070 u32 num_txd = tx_ring->num_desc;
2071
2072 frag_count = skb_shinfo(skb)->nr_frags + 1;
2073
2074 /* 14 frags supported for normal packet and
2075 * 32 frags supported for TSO packet
2076 */
2077 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
2078
2079 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
2080 frag = &skb_shinfo(skb)->frags[i];
2081 delta += skb_frag_size(frag);
2082 }
2083
2084 if (!__pskb_pull_tail(skb, delta))
2085 goto drop_packet;
2086
2087 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2088 }
2089 /* 4 fragments per cmd des */
2090 no_of_desc = (frag_count + 3) >> 2;
2091
2092 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2093 netif_stop_queue(netdev);
2094 smp_mb();
2095 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
2096 netif_start_queue(netdev);
2097 else
2098 return NETDEV_TX_BUSY;
2099 }
2100
2101 producer = tx_ring->producer;
2102 pbuf = &tx_ring->cmd_buf_arr[producer];
2103
2104 pdev = adapter->pdev;
2105
2106 if (netxen_map_tx_skb(pdev, skb, pbuf))
2107 goto drop_packet;
2108
2109 pbuf->skb = skb;
2110 pbuf->frag_count = frag_count;
2111
2112 first_desc = hwdesc = &tx_ring->desc_head[producer];
2113 netxen_clear_cmddesc((u64 *)hwdesc);
2114
2115 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
2116 netxen_set_tx_port(first_desc, adapter->portnum);
2117
2118 for (i = 0; i < frag_count; i++) {
2119
2120 k = i % 4;
2121
2122 if ((k == 0) && (i > 0)) {
2123 /* move to next desc.*/
2124 producer = get_next_index(producer, num_txd);
2125 hwdesc = &tx_ring->desc_head[producer];
2126 netxen_clear_cmddesc((u64 *)hwdesc);
2127 tx_ring->cmd_buf_arr[producer].skb = NULL;
2128 }
2129
2130 buffrag = &pbuf->frag_array[i];
2131
2132 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2133 switch (k) {
2134 case 0:
2135 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2136 break;
2137 case 1:
2138 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2139 break;
2140 case 2:
2141 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2142 break;
2143 case 3:
2144 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2145 break;
2146 }
2147 }
2148
2149 tx_ring->producer = get_next_index(producer, num_txd);
2150
2151 netxen_tso_check(netdev, tx_ring, first_desc, skb);
2152
2153 adapter->stats.txbytes += skb->len;
2154 adapter->stats.xmitcalled++;
2155
2156 netxen_nic_update_cmd_producer(adapter, tx_ring);
2157
2158 return NETDEV_TX_OK;
2159
2160 drop_packet:
2161 adapter->stats.txdropped++;
2162 dev_kfree_skb_any(skb);
2163 return NETDEV_TX_OK;
2164 }
2165
2166 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
2167 {
2168 struct net_device *netdev = adapter->netdev;
2169 uint32_t temp, temp_state, temp_val;
2170 int rv = 0;
2171
2172 temp = NXRD32(adapter, CRB_TEMP_STATE);
2173
2174 temp_state = nx_get_temp_state(temp);
2175 temp_val = nx_get_temp_val(temp);
2176
2177 if (temp_state == NX_TEMP_PANIC) {
2178 printk(KERN_ALERT
2179 "%s: Device temperature %d degrees C exceeds"
2180 " maximum allowed. Hardware has been shut down.\n",
2181 netdev->name, temp_val);
2182 rv = 1;
2183 } else if (temp_state == NX_TEMP_WARN) {
2184 if (adapter->temp == NX_TEMP_NORMAL) {
2185 printk(KERN_ALERT
2186 "%s: Device temperature %d degrees C "
2187 "exceeds operating range."
2188 " Immediate action needed.\n",
2189 netdev->name, temp_val);
2190 }
2191 } else {
2192 if (adapter->temp == NX_TEMP_WARN) {
2193 printk(KERN_INFO
2194 "%s: Device temperature is now %d degrees C"
2195 " in normal range.\n", netdev->name,
2196 temp_val);
2197 }
2198 }
2199 adapter->temp = temp_state;
2200 return rv;
2201 }
2202
2203 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
2204 {
2205 struct net_device *netdev = adapter->netdev;
2206
2207 if (adapter->ahw.linkup && !linkup) {
2208 printk(KERN_INFO "%s: %s NIC Link is down\n",
2209 netxen_nic_driver_name, netdev->name);
2210 adapter->ahw.linkup = 0;
2211 if (netif_running(netdev)) {
2212 netif_carrier_off(netdev);
2213 netif_stop_queue(netdev);
2214 }
2215 adapter->link_changed = !adapter->has_link_events;
2216 } else if (!adapter->ahw.linkup && linkup) {
2217 printk(KERN_INFO "%s: %s NIC Link is up\n",
2218 netxen_nic_driver_name, netdev->name);
2219 adapter->ahw.linkup = 1;
2220 if (netif_running(netdev)) {
2221 netif_carrier_on(netdev);
2222 netif_wake_queue(netdev);
2223 }
2224 adapter->link_changed = !adapter->has_link_events;
2225 }
2226 }
2227
2228 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2229 {
2230 u32 val, port, linkup;
2231
2232 port = adapter->physical_port;
2233
2234 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2235 val = NXRD32(adapter, CRB_XG_STATE_P3);
2236 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2237 linkup = (val == XG_LINK_UP_P3);
2238 } else {
2239 val = NXRD32(adapter, CRB_XG_STATE);
2240 val = (val >> port*8) & 0xff;
2241 linkup = (val == XG_LINK_UP);
2242 }
2243
2244 netxen_advert_link_change(adapter, linkup);
2245 }
2246
2247 static void netxen_tx_timeout(struct net_device *netdev)
2248 {
2249 struct netxen_adapter *adapter = netdev_priv(netdev);
2250
2251 if (test_bit(__NX_RESETTING, &adapter->state))
2252 return;
2253
2254 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2255 schedule_work(&adapter->tx_timeout_task);
2256 }
2257
2258 static void netxen_tx_timeout_task(struct work_struct *work)
2259 {
2260 struct netxen_adapter *adapter =
2261 container_of(work, struct netxen_adapter, tx_timeout_task);
2262
2263 if (!netif_running(adapter->netdev))
2264 return;
2265
2266 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
2267 return;
2268
2269 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2270 goto request_reset;
2271
2272 rtnl_lock();
2273 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2274 /* try to scrub interrupt */
2275 netxen_napi_disable(adapter);
2276
2277 netxen_napi_enable(adapter);
2278
2279 netif_wake_queue(adapter->netdev);
2280
2281 clear_bit(__NX_RESETTING, &adapter->state);
2282 } else {
2283 clear_bit(__NX_RESETTING, &adapter->state);
2284 if (netxen_nic_reset_context(adapter)) {
2285 rtnl_unlock();
2286 goto request_reset;
2287 }
2288 }
2289 netif_trans_update(adapter->netdev);
2290 rtnl_unlock();
2291 return;
2292
2293 request_reset:
2294 adapter->need_fw_reset = 1;
2295 clear_bit(__NX_RESETTING, &adapter->state);
2296 }
2297
2298 static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev,
2299 struct rtnl_link_stats64 *stats)
2300 {
2301 struct netxen_adapter *adapter = netdev_priv(netdev);
2302
2303 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2304 stats->tx_packets = adapter->stats.xmitfinished;
2305 stats->rx_bytes = adapter->stats.rxbytes;
2306 stats->tx_bytes = adapter->stats.txbytes;
2307 stats->rx_dropped = adapter->stats.rxdropped;
2308 stats->tx_dropped = adapter->stats.txdropped;
2309
2310 return stats;
2311 }
2312
2313 static irqreturn_t netxen_intr(int irq, void *data)
2314 {
2315 struct nx_host_sds_ring *sds_ring = data;
2316 struct netxen_adapter *adapter = sds_ring->adapter;
2317 u32 status = 0;
2318
2319 status = readl(adapter->isr_int_vec);
2320
2321 if (!(status & adapter->int_vec_bit))
2322 return IRQ_NONE;
2323
2324 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2325 /* check interrupt state machine, to be sure */
2326 status = readl(adapter->crb_int_state_reg);
2327 if (!ISR_LEGACY_INT_TRIGGERED(status))
2328 return IRQ_NONE;
2329
2330 } else {
2331 unsigned long our_int = 0;
2332
2333 our_int = readl(adapter->crb_int_state_reg);
2334
2335 /* not our interrupt */
2336 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2337 return IRQ_NONE;
2338
2339 /* claim interrupt */
2340 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2341
2342 /* clear interrupt */
2343 netxen_nic_disable_int(sds_ring);
2344 }
2345
2346 writel(0xffffffff, adapter->tgt_status_reg);
2347 /* read twice to ensure write is flushed */
2348 readl(adapter->isr_int_vec);
2349 readl(adapter->isr_int_vec);
2350
2351 napi_schedule(&sds_ring->napi);
2352
2353 return IRQ_HANDLED;
2354 }
2355
2356 static irqreturn_t netxen_msi_intr(int irq, void *data)
2357 {
2358 struct nx_host_sds_ring *sds_ring = data;
2359 struct netxen_adapter *adapter = sds_ring->adapter;
2360
2361 /* clear interrupt */
2362 writel(0xffffffff, adapter->tgt_status_reg);
2363
2364 napi_schedule(&sds_ring->napi);
2365 return IRQ_HANDLED;
2366 }
2367
2368 static irqreturn_t netxen_msix_intr(int irq, void *data)
2369 {
2370 struct nx_host_sds_ring *sds_ring = data;
2371
2372 napi_schedule(&sds_ring->napi);
2373 return IRQ_HANDLED;
2374 }
2375
2376 static int netxen_nic_poll(struct napi_struct *napi, int budget)
2377 {
2378 struct nx_host_sds_ring *sds_ring =
2379 container_of(napi, struct nx_host_sds_ring, napi);
2380
2381 struct netxen_adapter *adapter = sds_ring->adapter;
2382
2383 int tx_complete;
2384 int work_done;
2385
2386 tx_complete = netxen_process_cmd_ring(adapter);
2387
2388 work_done = netxen_process_rcv_ring(sds_ring, budget);
2389
2390 if (!tx_complete)
2391 work_done = budget;
2392
2393 if (work_done < budget) {
2394 napi_complete(&sds_ring->napi);
2395 if (test_bit(__NX_DEV_UP, &adapter->state))
2396 netxen_nic_enable_int(sds_ring);
2397 }
2398
2399 return work_done;
2400 }
2401
2402 #ifdef CONFIG_NET_POLL_CONTROLLER
2403 static void netxen_nic_poll_controller(struct net_device *netdev)
2404 {
2405 int ring;
2406 struct nx_host_sds_ring *sds_ring;
2407 struct netxen_adapter *adapter = netdev_priv(netdev);
2408 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2409
2410 disable_irq(adapter->irq);
2411 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2412 sds_ring = &recv_ctx->sds_rings[ring];
2413 netxen_intr(adapter->irq, sds_ring);
2414 }
2415 enable_irq(adapter->irq);
2416 }
2417 #endif
2418
2419 static int
2420 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2421 {
2422 int count;
2423 if (netxen_api_lock(adapter))
2424 return -EIO;
2425
2426 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2427
2428 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2429
2430 netxen_api_unlock(adapter);
2431 return count;
2432 }
2433
2434 static int
2435 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2436 {
2437 int count, state;
2438 if (netxen_api_lock(adapter))
2439 return -EIO;
2440
2441 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2442 WARN_ON(count == 0);
2443
2444 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2445 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2446
2447 if (count == 0 && state != NX_DEV_FAILED)
2448 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2449
2450 netxen_api_unlock(adapter);
2451 return count;
2452 }
2453
2454 static int
2455 nx_dev_request_aer(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_AER)
2466 ret = 0;
2467 else if (state == NX_DEV_READY) {
2468 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2469 ret = 0;
2470 }
2471
2472 netxen_api_unlock(adapter);
2473 return ret;
2474 }
2475
2476 int
2477 nx_dev_request_reset(struct netxen_adapter *adapter)
2478 {
2479 u32 state;
2480 int ret = -EINVAL;
2481
2482 if (netxen_api_lock(adapter))
2483 return ret;
2484
2485 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2486
2487 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED)
2488 ret = 0;
2489 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
2490 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2491 adapter->flags |= NETXEN_FW_RESET_OWNER;
2492 ret = 0;
2493 }
2494
2495 netxen_api_unlock(adapter);
2496
2497 return ret;
2498 }
2499
2500 static int
2501 netxen_can_start_firmware(struct netxen_adapter *adapter)
2502 {
2503 int count;
2504 int can_start = 0;
2505
2506 if (netxen_api_lock(adapter)) {
2507 nx_incr_dev_ref_cnt(adapter);
2508 return -1;
2509 }
2510
2511 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2512
2513 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2514 count = 0;
2515
2516 if (count == 0) {
2517 can_start = 1;
2518 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2519 }
2520
2521 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2522
2523 netxen_api_unlock(adapter);
2524
2525 return can_start;
2526 }
2527
2528 static void
2529 netxen_schedule_work(struct netxen_adapter *adapter,
2530 work_func_t func, int delay)
2531 {
2532 INIT_DELAYED_WORK(&adapter->fw_work, func);
2533 schedule_delayed_work(&adapter->fw_work, delay);
2534 }
2535
2536 static void
2537 netxen_cancel_fw_work(struct netxen_adapter *adapter)
2538 {
2539 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2540 msleep(10);
2541
2542 cancel_delayed_work_sync(&adapter->fw_work);
2543 }
2544
2545 static void
2546 netxen_attach_work(struct work_struct *work)
2547 {
2548 struct netxen_adapter *adapter = container_of(work,
2549 struct netxen_adapter, fw_work.work);
2550 struct net_device *netdev = adapter->netdev;
2551 int err = 0;
2552
2553 if (netif_running(netdev)) {
2554 err = netxen_nic_attach(adapter);
2555 if (err)
2556 goto done;
2557
2558 err = netxen_nic_up(adapter, netdev);
2559 if (err) {
2560 netxen_nic_detach(adapter);
2561 goto done;
2562 }
2563
2564 netxen_restore_indev_addr(netdev, NETDEV_UP);
2565 }
2566
2567 netif_device_attach(netdev);
2568
2569 done:
2570 adapter->fw_fail_cnt = 0;
2571 clear_bit(__NX_RESETTING, &adapter->state);
2572 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2573 }
2574
2575 static void
2576 netxen_fwinit_work(struct work_struct *work)
2577 {
2578 struct netxen_adapter *adapter = container_of(work,
2579 struct netxen_adapter, fw_work.work);
2580 int dev_state;
2581 int count;
2582 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2583 if (adapter->flags & NETXEN_FW_RESET_OWNER) {
2584 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2585 WARN_ON(count == 0);
2586 if (count == 1) {
2587 if (adapter->mdump.md_enabled) {
2588 rtnl_lock();
2589 netxen_dump_fw(adapter);
2590 rtnl_unlock();
2591 }
2592 adapter->flags &= ~NETXEN_FW_RESET_OWNER;
2593 if (netxen_api_lock(adapter)) {
2594 clear_bit(__NX_RESETTING, &adapter->state);
2595 NXWR32(adapter, NX_CRB_DEV_STATE,
2596 NX_DEV_FAILED);
2597 return;
2598 }
2599 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2600 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2601 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2602 dev_state = NX_DEV_COLD;
2603 netxen_api_unlock(adapter);
2604 }
2605 }
2606
2607 switch (dev_state) {
2608 case NX_DEV_COLD:
2609 case NX_DEV_READY:
2610 if (!netxen_start_firmware(adapter)) {
2611 netxen_schedule_work(adapter, netxen_attach_work, 0);
2612 return;
2613 }
2614 break;
2615
2616 case NX_DEV_NEED_RESET:
2617 case NX_DEV_INITALIZING:
2618 netxen_schedule_work(adapter,
2619 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2620 return;
2621
2622 case NX_DEV_FAILED:
2623 default:
2624 nx_incr_dev_ref_cnt(adapter);
2625 break;
2626 }
2627
2628 if (netxen_api_lock(adapter)) {
2629 clear_bit(__NX_RESETTING, &adapter->state);
2630 return;
2631 }
2632 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED);
2633 netxen_api_unlock(adapter);
2634 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n",
2635 adapter->netdev->name);
2636
2637 clear_bit(__NX_RESETTING, &adapter->state);
2638 }
2639
2640 static void
2641 netxen_detach_work(struct work_struct *work)
2642 {
2643 struct netxen_adapter *adapter = container_of(work,
2644 struct netxen_adapter, fw_work.work);
2645 struct net_device *netdev = adapter->netdev;
2646 int ref_cnt = 0, delay;
2647 u32 status;
2648
2649 netif_device_detach(netdev);
2650
2651 netxen_nic_down(adapter, netdev);
2652
2653 rtnl_lock();
2654 netxen_nic_detach(adapter);
2655 rtnl_unlock();
2656
2657 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2658
2659 if (status & NX_RCODE_FATAL_ERROR)
2660 goto err_ret;
2661
2662 if (adapter->temp == NX_TEMP_PANIC)
2663 goto err_ret;
2664
2665 if (!(adapter->flags & NETXEN_FW_RESET_OWNER))
2666 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2667
2668 if (ref_cnt == -EIO)
2669 goto err_ret;
2670
2671 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2672
2673 adapter->fw_wait_cnt = 0;
2674 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2675
2676 return;
2677
2678 err_ret:
2679 clear_bit(__NX_RESETTING, &adapter->state);
2680 }
2681
2682 static int
2683 netxen_check_health(struct netxen_adapter *adapter)
2684 {
2685 u32 state, heartbit;
2686 u32 peg_status;
2687 struct net_device *netdev = adapter->netdev;
2688
2689 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2690 if (state == NX_DEV_NEED_AER)
2691 return 0;
2692
2693 if (netxen_nic_check_temp(adapter))
2694 goto detach;
2695
2696 if (adapter->need_fw_reset) {
2697 if (nx_dev_request_reset(adapter))
2698 return 0;
2699 goto detach;
2700 }
2701
2702 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2703 * 1. Tx timeout 2. Fw hang
2704 * Send request to destroy context in case of tx timeout only
2705 * and doesn't required in case of Fw hang
2706 */
2707 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) {
2708 adapter->need_fw_reset = 1;
2709 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2710 goto detach;
2711 }
2712
2713 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2714 return 0;
2715
2716 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2717 if (heartbit != adapter->heartbit) {
2718 adapter->heartbit = heartbit;
2719 adapter->fw_fail_cnt = 0;
2720 if (adapter->need_fw_reset)
2721 goto detach;
2722 return 0;
2723 }
2724
2725 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2726 return 0;
2727
2728 if (nx_dev_request_reset(adapter))
2729 return 0;
2730
2731 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2732
2733 dev_err(&netdev->dev, "firmware hang detected\n");
2734 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2735 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2736 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2737 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2738 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2739 "PEG_NET_4_PC: 0x%x\n",
2740 peg_status,
2741 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2),
2742 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c),
2743 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c),
2744 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c),
2745 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c),
2746 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c));
2747 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67)
2748 dev_err(&adapter->pdev->dev,
2749 "Firmware aborted with error code 0x00006700. "
2750 "Device is being reset.\n");
2751 detach:
2752 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2753 !test_and_set_bit(__NX_RESETTING, &adapter->state))
2754 netxen_schedule_work(adapter, netxen_detach_work, 0);
2755 return 1;
2756 }
2757
2758 static void
2759 netxen_fw_poll_work(struct work_struct *work)
2760 {
2761 struct netxen_adapter *adapter = container_of(work,
2762 struct netxen_adapter, fw_work.work);
2763
2764 if (test_bit(__NX_RESETTING, &adapter->state))
2765 goto reschedule;
2766
2767 if (test_bit(__NX_DEV_UP, &adapter->state) &&
2768 !(adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)) {
2769 if (!adapter->has_link_events) {
2770
2771 netxen_nic_handle_phy_intr(adapter);
2772
2773 if (adapter->link_changed)
2774 netxen_nic_set_link_parameters(adapter);
2775 }
2776 }
2777
2778 if (netxen_check_health(adapter))
2779 return;
2780
2781 reschedule:
2782 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2783 }
2784
2785 static ssize_t
2786 netxen_store_bridged_mode(struct device *dev,
2787 struct device_attribute *attr, const char *buf, size_t len)
2788 {
2789 struct net_device *net = to_net_dev(dev);
2790 struct netxen_adapter *adapter = netdev_priv(net);
2791 unsigned long new;
2792 int ret = -EINVAL;
2793
2794 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2795 goto err_out;
2796
2797 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2798 goto err_out;
2799
2800 if (kstrtoul(buf, 2, &new))
2801 goto err_out;
2802
2803 if (!netxen_config_bridged_mode(adapter, !!new))
2804 ret = len;
2805
2806 err_out:
2807 return ret;
2808 }
2809
2810 static ssize_t
2811 netxen_show_bridged_mode(struct device *dev,
2812 struct device_attribute *attr, char *buf)
2813 {
2814 struct net_device *net = to_net_dev(dev);
2815 struct netxen_adapter *adapter;
2816 int bridged_mode = 0;
2817
2818 adapter = netdev_priv(net);
2819
2820 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2821 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2822
2823 return sprintf(buf, "%d\n", bridged_mode);
2824 }
2825
2826 static struct device_attribute dev_attr_bridged_mode = {
2827 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2828 .show = netxen_show_bridged_mode,
2829 .store = netxen_store_bridged_mode,
2830 };
2831
2832 static ssize_t
2833 netxen_store_diag_mode(struct device *dev,
2834 struct device_attribute *attr, const char *buf, size_t len)
2835 {
2836 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2837 unsigned long new;
2838
2839 if (kstrtoul(buf, 2, &new))
2840 return -EINVAL;
2841
2842 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2843 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2844
2845 return len;
2846 }
2847
2848 static ssize_t
2849 netxen_show_diag_mode(struct device *dev,
2850 struct device_attribute *attr, char *buf)
2851 {
2852 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2853
2854 return sprintf(buf, "%d\n",
2855 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2856 }
2857
2858 static struct device_attribute dev_attr_diag_mode = {
2859 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2860 .show = netxen_show_diag_mode,
2861 .store = netxen_store_diag_mode,
2862 };
2863
2864 static int
2865 netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2866 loff_t offset, size_t size)
2867 {
2868 size_t crb_size = 4;
2869
2870 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2871 return -EIO;
2872
2873 if (offset < NETXEN_PCI_CRBSPACE) {
2874 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2875 return -EINVAL;
2876
2877 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2878 NETXEN_PCI_CAMQM_2M_END))
2879 crb_size = 8;
2880 else
2881 return -EINVAL;
2882 }
2883
2884 if ((size != crb_size) || (offset & (crb_size-1)))
2885 return -EINVAL;
2886
2887 return 0;
2888 }
2889
2890 static ssize_t
2891 netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2892 struct bin_attribute *attr,
2893 char *buf, loff_t offset, size_t size)
2894 {
2895 struct device *dev = kobj_to_dev(kobj);
2896 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2897 u32 data;
2898 u64 qmdata;
2899 int ret;
2900
2901 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2902 if (ret != 0)
2903 return ret;
2904
2905 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2906 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2907 NETXEN_PCI_CAMQM_2M_END)) {
2908 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2909 memcpy(buf, &qmdata, size);
2910 } else {
2911 data = NXRD32(adapter, offset);
2912 memcpy(buf, &data, size);
2913 }
2914
2915 return size;
2916 }
2917
2918 static ssize_t
2919 netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2920 struct bin_attribute *attr,
2921 char *buf, loff_t offset, size_t size)
2922 {
2923 struct device *dev = kobj_to_dev(kobj);
2924 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2925 u32 data;
2926 u64 qmdata;
2927 int ret;
2928
2929 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2930 if (ret != 0)
2931 return ret;
2932
2933 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2934 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2935 NETXEN_PCI_CAMQM_2M_END)) {
2936 memcpy(&qmdata, buf, size);
2937 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2938 } else {
2939 memcpy(&data, buf, size);
2940 NXWR32(adapter, offset, data);
2941 }
2942
2943 return size;
2944 }
2945
2946 static int
2947 netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2948 loff_t offset, size_t size)
2949 {
2950 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2951 return -EIO;
2952
2953 if ((size != 8) || (offset & 0x7))
2954 return -EIO;
2955
2956 return 0;
2957 }
2958
2959 static ssize_t
2960 netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2961 struct bin_attribute *attr,
2962 char *buf, loff_t offset, size_t size)
2963 {
2964 struct device *dev = kobj_to_dev(kobj);
2965 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2966 u64 data;
2967 int ret;
2968
2969 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2970 if (ret != 0)
2971 return ret;
2972
2973 if (adapter->pci_mem_read(adapter, offset, &data))
2974 return -EIO;
2975
2976 memcpy(buf, &data, size);
2977
2978 return size;
2979 }
2980
2981 static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
2982 struct bin_attribute *attr, char *buf,
2983 loff_t offset, size_t size)
2984 {
2985 struct device *dev = kobj_to_dev(kobj);
2986 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2987 u64 data;
2988 int ret;
2989
2990 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2991 if (ret != 0)
2992 return ret;
2993
2994 memcpy(&data, buf, size);
2995
2996 if (adapter->pci_mem_write(adapter, offset, data))
2997 return -EIO;
2998
2999 return size;
3000 }
3001
3002
3003 static struct bin_attribute bin_attr_crb = {
3004 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
3005 .size = 0,
3006 .read = netxen_sysfs_read_crb,
3007 .write = netxen_sysfs_write_crb,
3008 };
3009
3010 static struct bin_attribute bin_attr_mem = {
3011 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
3012 .size = 0,
3013 .read = netxen_sysfs_read_mem,
3014 .write = netxen_sysfs_write_mem,
3015 };
3016
3017 static ssize_t
3018 netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj,
3019 struct bin_attribute *attr,
3020 char *buf, loff_t offset, size_t size)
3021 {
3022 struct device *dev = kobj_to_dev(kobj);
3023 struct netxen_adapter *adapter = dev_get_drvdata(dev);
3024 struct net_device *netdev = adapter->netdev;
3025 struct netxen_dimm_cfg dimm;
3026 u8 dw, rows, cols, banks, ranks;
3027 u32 val;
3028
3029 if (size < attr->size) {
3030 netdev_err(netdev, "Invalid size\n");
3031 return -EINVAL;
3032 }
3033
3034 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg));
3035 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY);
3036
3037 /* Checks if DIMM info is valid. */
3038 if (val & NETXEN_DIMM_VALID_FLAG) {
3039 netdev_err(netdev, "Invalid DIMM flag\n");
3040 dimm.presence = 0xff;
3041 goto out;
3042 }
3043
3044 rows = NETXEN_DIMM_NUMROWS(val);
3045 cols = NETXEN_DIMM_NUMCOLS(val);
3046 ranks = NETXEN_DIMM_NUMRANKS(val);
3047 banks = NETXEN_DIMM_NUMBANKS(val);
3048 dw = NETXEN_DIMM_DATAWIDTH(val);
3049
3050 dimm.presence = (val & NETXEN_DIMM_PRESENT);
3051
3052 /* Checks if DIMM info is present. */
3053 if (!dimm.presence) {
3054 netdev_err(netdev, "DIMM not present\n");
3055 goto out;
3056 }
3057
3058 dimm.dimm_type = NETXEN_DIMM_TYPE(val);
3059
3060 switch (dimm.dimm_type) {
3061 case NETXEN_DIMM_TYPE_RDIMM:
3062 case NETXEN_DIMM_TYPE_UDIMM:
3063 case NETXEN_DIMM_TYPE_SO_DIMM:
3064 case NETXEN_DIMM_TYPE_Micro_DIMM:
3065 case NETXEN_DIMM_TYPE_Mini_RDIMM:
3066 case NETXEN_DIMM_TYPE_Mini_UDIMM:
3067 break;
3068 default:
3069 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type);
3070 goto out;
3071 }
3072
3073 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM)
3074 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM;
3075 else
3076 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val);
3077
3078 if (val & NETXEN_DIMM_SIZE) {
3079 dimm.size = NETXEN_DIMM_STD_MEM_SIZE;
3080 goto out;
3081 }
3082
3083 if (!rows) {
3084 netdev_err(netdev, "Invalid no of rows %x\n", rows);
3085 goto out;
3086 }
3087
3088 if (!cols) {
3089 netdev_err(netdev, "Invalid no of columns %x\n", cols);
3090 goto out;
3091 }
3092
3093 if (!banks) {
3094 netdev_err(netdev, "Invalid no of banks %x\n", banks);
3095 goto out;
3096 }
3097
3098 ranks += 1;
3099
3100 switch (dw) {
3101 case 0x0:
3102 dw = 32;
3103 break;
3104 case 0x1:
3105 dw = 33;
3106 break;
3107 case 0x2:
3108 dw = 36;
3109 break;
3110 case 0x3:
3111 dw = 64;
3112 break;
3113 case 0x4:
3114 dw = 72;
3115 break;
3116 case 0x5:
3117 dw = 80;
3118 break;
3119 case 0x6:
3120 dw = 128;
3121 break;
3122 case 0x7:
3123 dw = 144;
3124 break;
3125 default:
3126 netdev_err(netdev, "Invalid data-width %x\n", dw);
3127 goto out;
3128 }
3129
3130 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8;
3131 /* Size returned in MB. */
3132 dimm.size = (dimm.size) / 0x100000;
3133 out:
3134 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg));
3135 return sizeof(struct netxen_dimm_cfg);
3136
3137 }
3138
3139 static struct bin_attribute bin_attr_dimm = {
3140 .attr = { .name = "dimm", .mode = (S_IRUGO | S_IWUSR) },
3141 .size = sizeof(struct netxen_dimm_cfg),
3142 .read = netxen_sysfs_read_dimm,
3143 };
3144
3145
3146 static void
3147 netxen_create_sysfs_entries(struct netxen_adapter *adapter)
3148 {
3149 struct device *dev = &adapter->pdev->dev;
3150
3151 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
3152 /* bridged_mode control */
3153 if (device_create_file(dev, &dev_attr_bridged_mode)) {
3154 dev_warn(dev,
3155 "failed to create bridged_mode sysfs entry\n");
3156 }
3157 }
3158 }
3159
3160 static void
3161 netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
3162 {
3163 struct device *dev = &adapter->pdev->dev;
3164
3165 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
3166 device_remove_file(dev, &dev_attr_bridged_mode);
3167 }
3168
3169 static void
3170 netxen_create_diag_entries(struct netxen_adapter *adapter)
3171 {
3172 struct pci_dev *pdev = adapter->pdev;
3173 struct device *dev;
3174
3175 dev = &pdev->dev;
3176 if (device_create_file(dev, &dev_attr_diag_mode))
3177 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3178 if (device_create_bin_file(dev, &bin_attr_crb))
3179 dev_info(dev, "failed to create crb sysfs entry\n");
3180 if (device_create_bin_file(dev, &bin_attr_mem))
3181 dev_info(dev, "failed to create mem sysfs entry\n");
3182 if (device_create_bin_file(dev, &bin_attr_dimm))
3183 dev_info(dev, "failed to create dimm sysfs entry\n");
3184 }
3185
3186
3187 static void
3188 netxen_remove_diag_entries(struct netxen_adapter *adapter)
3189 {
3190 struct pci_dev *pdev = adapter->pdev;
3191 struct device *dev = &pdev->dev;
3192
3193 device_remove_file(dev, &dev_attr_diag_mode);
3194 device_remove_bin_file(dev, &bin_attr_crb);
3195 device_remove_bin_file(dev, &bin_attr_mem);
3196 device_remove_bin_file(dev, &bin_attr_dimm);
3197 }
3198
3199 #ifdef CONFIG_INET
3200
3201 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
3202
3203 static int
3204 netxen_destip_supported(struct netxen_adapter *adapter)
3205 {
3206 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
3207 return 0;
3208
3209 if (adapter->ahw.cut_through)
3210 return 0;
3211
3212 return 1;
3213 }
3214
3215 static void
3216 netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
3217 {
3218 struct nx_ip_list *cur, *tmp_cur;
3219
3220 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) {
3221 if (master) {
3222 if (cur->master) {
3223 netxen_config_ipaddr(adapter, cur->ip_addr,
3224 NX_IP_DOWN);
3225 list_del(&cur->list);
3226 kfree(cur);
3227 }
3228 } else {
3229 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
3230 list_del(&cur->list);
3231 kfree(cur);
3232 }
3233 }
3234 }
3235
3236 static bool
3237 netxen_list_config_ip(struct netxen_adapter *adapter,
3238 struct in_ifaddr *ifa, unsigned long event)
3239 {
3240 struct net_device *dev;
3241 struct nx_ip_list *cur, *tmp_cur;
3242 struct list_head *head;
3243 bool ret = false;
3244
3245 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3246
3247 if (dev == NULL)
3248 goto out;
3249
3250 switch (event) {
3251 case NX_IP_UP:
3252 list_for_each(head, &adapter->ip_list) {
3253 cur = list_entry(head, struct nx_ip_list, list);
3254
3255 if (cur->ip_addr == ifa->ifa_address)
3256 goto out;
3257 }
3258
3259 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC);
3260 if (cur == NULL)
3261 goto out;
3262 if (dev->priv_flags & IFF_802_1Q_VLAN)
3263 dev = vlan_dev_real_dev(dev);
3264 cur->master = !!netif_is_bond_master(dev);
3265 cur->ip_addr = ifa->ifa_address;
3266 list_add_tail(&cur->list, &adapter->ip_list);
3267 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
3268 ret = true;
3269 break;
3270 case NX_IP_DOWN:
3271 list_for_each_entry_safe(cur, tmp_cur,
3272 &adapter->ip_list, list) {
3273 if (cur->ip_addr == ifa->ifa_address) {
3274 list_del(&cur->list);
3275 kfree(cur);
3276 netxen_config_ipaddr(adapter, ifa->ifa_address,
3277 NX_IP_DOWN);
3278 ret = true;
3279 break;
3280 }
3281 }
3282 }
3283 out:
3284 return ret;
3285 }
3286
3287 static void
3288 netxen_config_indev_addr(struct netxen_adapter *adapter,
3289 struct net_device *dev, unsigned long event)
3290 {
3291 struct in_device *indev;
3292
3293 if (!netxen_destip_supported(adapter))
3294 return;
3295
3296 indev = in_dev_get(dev);
3297 if (!indev)
3298 return;
3299
3300 for_ifa(indev) {
3301 switch (event) {
3302 case NETDEV_UP:
3303 netxen_list_config_ip(adapter, ifa, NX_IP_UP);
3304 break;
3305 case NETDEV_DOWN:
3306 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN);
3307 break;
3308 default:
3309 break;
3310 }
3311 } endfor_ifa(indev);
3312
3313 in_dev_put(indev);
3314 }
3315
3316 static void
3317 netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)
3318
3319 {
3320 struct netxen_adapter *adapter = netdev_priv(netdev);
3321 struct nx_ip_list *pos, *tmp_pos;
3322 unsigned long ip_event;
3323
3324 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3325 netxen_config_indev_addr(adapter, netdev, event);
3326
3327 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) {
3328 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
3329 }
3330 }
3331
3332 static inline bool
3333 netxen_config_checkdev(struct net_device *dev)
3334 {
3335 struct netxen_adapter *adapter;
3336
3337 if (!is_netxen_netdev(dev))
3338 return false;
3339 adapter = netdev_priv(dev);
3340 if (!adapter)
3341 return false;
3342 if (!netxen_destip_supported(adapter))
3343 return false;
3344 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3345 return false;
3346
3347 return true;
3348 }
3349
3350 /**
3351 * netxen_config_master - configure addresses based on master
3352 * @dev: netxen device
3353 * @event: netdev event
3354 */
3355 static void netxen_config_master(struct net_device *dev, unsigned long event)
3356 {
3357 struct net_device *master, *slave;
3358 struct netxen_adapter *adapter = netdev_priv(dev);
3359
3360 rcu_read_lock();
3361 master = netdev_master_upper_dev_get_rcu(dev);
3362 /*
3363 * This is the case where the netxen nic is being
3364 * enslaved and is dev_open()ed in bond_enslave()
3365 * Now we should program the bond's (and its vlans')
3366 * addresses in the netxen NIC.
3367 */
3368 if (master && netif_is_bond_master(master) &&
3369 !netif_is_bond_slave(dev)) {
3370 netxen_config_indev_addr(adapter, master, event);
3371 for_each_netdev_rcu(&init_net, slave)
3372 if (slave->priv_flags & IFF_802_1Q_VLAN &&
3373 vlan_dev_real_dev(slave) == master)
3374 netxen_config_indev_addr(adapter, slave, event);
3375 }
3376 rcu_read_unlock();
3377 /*
3378 * This is the case where the netxen nic is being
3379 * released and is dev_close()ed in bond_release()
3380 * just before IFF_BONDING is stripped.
3381 */
3382 if (!master && dev->priv_flags & IFF_BONDING)
3383 netxen_free_ip_list(adapter, true);
3384 }
3385
3386 static int netxen_netdev_event(struct notifier_block *this,
3387 unsigned long event, void *ptr)
3388 {
3389 struct netxen_adapter *adapter;
3390 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3391 struct net_device *orig_dev = dev;
3392 struct net_device *slave;
3393
3394 recheck:
3395 if (dev == NULL)
3396 goto done;
3397
3398 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3399 dev = vlan_dev_real_dev(dev);
3400 goto recheck;
3401 }
3402 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3403 /* If this is a bonding device, look for netxen-based slaves*/
3404 if (netif_is_bond_master(dev)) {
3405 rcu_read_lock();
3406 for_each_netdev_in_bond_rcu(dev, slave) {
3407 if (!netxen_config_checkdev(slave))
3408 continue;
3409 adapter = netdev_priv(slave);
3410 netxen_config_indev_addr(adapter,
3411 orig_dev, event);
3412 }
3413 rcu_read_unlock();
3414 } else {
3415 if (!netxen_config_checkdev(dev))
3416 goto done;
3417 adapter = netdev_priv(dev);
3418 /* Act only if the actual netxen is the target */
3419 if (orig_dev == dev)
3420 netxen_config_master(dev, event);
3421 netxen_config_indev_addr(adapter, orig_dev, event);
3422 }
3423 }
3424 done:
3425 return NOTIFY_DONE;
3426 }
3427
3428 static int
3429 netxen_inetaddr_event(struct notifier_block *this,
3430 unsigned long event, void *ptr)
3431 {
3432 struct netxen_adapter *adapter;
3433 struct net_device *dev, *slave;
3434 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3435 unsigned long ip_event;
3436
3437 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3438 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3439 recheck:
3440 if (dev == NULL)
3441 goto done;
3442
3443 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3444 dev = vlan_dev_real_dev(dev);
3445 goto recheck;
3446 }
3447 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3448 /* If this is a bonding device, look for netxen-based slaves*/
3449 if (netif_is_bond_master(dev)) {
3450 rcu_read_lock();
3451 for_each_netdev_in_bond_rcu(dev, slave) {
3452 if (!netxen_config_checkdev(slave))
3453 continue;
3454 adapter = netdev_priv(slave);
3455 netxen_list_config_ip(adapter, ifa, ip_event);
3456 }
3457 rcu_read_unlock();
3458 } else {
3459 if (!netxen_config_checkdev(dev))
3460 goto done;
3461 adapter = netdev_priv(dev);
3462 netxen_list_config_ip(adapter, ifa, ip_event);
3463 }
3464 }
3465 done:
3466 return NOTIFY_DONE;
3467 }
3468
3469 static struct notifier_block netxen_netdev_cb = {
3470 .notifier_call = netxen_netdev_event,
3471 };
3472
3473 static struct notifier_block netxen_inetaddr_cb = {
3474 .notifier_call = netxen_inetaddr_event,
3475 };
3476 #else
3477 static void
3478 netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
3479 { }
3480 static void
3481 netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
3482 { }
3483 #endif
3484
3485 static const struct pci_error_handlers netxen_err_handler = {
3486 .error_detected = netxen_io_error_detected,
3487 .slot_reset = netxen_io_slot_reset,
3488 .resume = netxen_io_resume,
3489 };
3490
3491 static struct pci_driver netxen_driver = {
3492 .name = netxen_nic_driver_name,
3493 .id_table = netxen_pci_tbl,
3494 .probe = netxen_nic_probe,
3495 .remove = netxen_nic_remove,
3496 #ifdef CONFIG_PM
3497 .suspend = netxen_nic_suspend,
3498 .resume = netxen_nic_resume,
3499 #endif
3500 .shutdown = netxen_nic_shutdown,
3501 .err_handler = &netxen_err_handler
3502 };
3503
3504 static int __init netxen_init_module(void)
3505 {
3506 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
3507
3508 #ifdef CONFIG_INET
3509 register_netdevice_notifier(&netxen_netdev_cb);
3510 register_inetaddr_notifier(&netxen_inetaddr_cb);
3511 #endif
3512 return pci_register_driver(&netxen_driver);
3513 }
3514
3515 module_init(netxen_init_module);
3516
3517 static void __exit netxen_exit_module(void)
3518 {
3519 pci_unregister_driver(&netxen_driver);
3520
3521 #ifdef CONFIG_INET
3522 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
3523 unregister_netdevice_notifier(&netxen_netdev_cb);
3524 #endif
3525 }
3526
3527 module_exit(netxen_exit_module);
Linux with added FPC-III support