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x86/mm/pat: Don't report PAT on CPUs that don't support it
[linux/fpc-iii.git] / drivers / net / ethernet / qlogic / netxen / netxen_nic_main.c
blob827de838389f3222735fab37785532f73077ddbb
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 void 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 /* MTU range: 0 - 8000 (P2) or 9600 (P3) */
1576 netdev->min_mtu = 0;
1577 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1578 netdev->max_mtu = P3_MAX_MTU;
1579 else
1580 netdev->max_mtu = P2_MAX_MTU;
1581
1582 netxen_nic_clear_stats(adapter);
1583
1584 err = netxen_setup_intr(adapter);
1585
1586 if (err) {
1587 dev_err(&adapter->pdev->dev,
1588 "Failed to setup interrupts, error = %d\n", err);
1589 goto err_out_disable_msi;
1590 }
1591
1592 netxen_read_ula_info(adapter);
1593
1594 err = netxen_setup_netdev(adapter, netdev);
1595 if (err)
1596 goto err_out_disable_msi;
1597
1598 pci_set_drvdata(pdev, adapter);
1599
1600 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1601
1602 switch (adapter->ahw.port_type) {
1603 case NETXEN_NIC_GBE:
1604 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1605 adapter->netdev->name);
1606 break;
1607 case NETXEN_NIC_XGBE:
1608 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1609 adapter->netdev->name);
1610 break;
1611 }
1612
1613 netxen_create_diag_entries(adapter);
1614
1615 return 0;
1616
1617 err_out_disable_msi:
1618 netxen_teardown_intr(adapter);
1619
1620 netxen_free_dummy_dma(adapter);
1621
1622 err_out_decr_ref:
1623 nx_decr_dev_ref_cnt(adapter);
1624
1625 err_out_iounmap:
1626 netxen_cleanup_pci_map(adapter);
1627
1628 err_out_free_netdev:
1629 free_netdev(netdev);
1630
1631 err_out_free_res:
1632 pci_release_regions(pdev);
1633
1634 err_out_disable_pdev:
1635 pci_disable_device(pdev);
1636 return err;
1637 }
1638
1639 static
1640 void netxen_cleanup_minidump(struct netxen_adapter *adapter)
1641 {
1642 kfree(adapter->mdump.md_template);
1643 adapter->mdump.md_template = NULL;
1644
1645 if (adapter->mdump.md_capture_buff) {
1646 vfree(adapter->mdump.md_capture_buff);
1647 adapter->mdump.md_capture_buff = NULL;
1648 }
1649 }
1650
1651 static void netxen_nic_remove(struct pci_dev *pdev)
1652 {
1653 struct netxen_adapter *adapter;
1654 struct net_device *netdev;
1655
1656 adapter = pci_get_drvdata(pdev);
1657 if (adapter == NULL)
1658 return;
1659
1660 netdev = adapter->netdev;
1661
1662 netxen_cancel_fw_work(adapter);
1663
1664 unregister_netdev(netdev);
1665
1666 cancel_work_sync(&adapter->tx_timeout_task);
1667
1668 netxen_free_ip_list(adapter, false);
1669 netxen_nic_detach(adapter);
1670
1671 nx_decr_dev_ref_cnt(adapter);
1672
1673 if (adapter->portnum == 0)
1674 netxen_free_dummy_dma(adapter);
1675
1676 clear_bit(__NX_RESETTING, &adapter->state);
1677
1678 netxen_teardown_intr(adapter);
1679 netxen_set_interrupt_mode(adapter, 0);
1680 netxen_remove_diag_entries(adapter);
1681
1682 netxen_cleanup_pci_map(adapter);
1683
1684 netxen_release_firmware(adapter);
1685
1686 if (NX_IS_REVISION_P3(pdev->revision)) {
1687 netxen_cleanup_minidump(adapter);
1688 pci_disable_pcie_error_reporting(pdev);
1689 }
1690
1691 pci_release_regions(pdev);
1692 pci_disable_device(pdev);
1693
1694 free_netdev(netdev);
1695 }
1696
1697 static void netxen_nic_detach_func(struct netxen_adapter *adapter)
1698 {
1699 struct net_device *netdev = adapter->netdev;
1700
1701 netif_device_detach(netdev);
1702
1703 netxen_cancel_fw_work(adapter);
1704
1705 if (netif_running(netdev))
1706 netxen_nic_down(adapter, netdev);
1707
1708 cancel_work_sync(&adapter->tx_timeout_task);
1709
1710 netxen_nic_detach(adapter);
1711
1712 if (adapter->portnum == 0)
1713 netxen_free_dummy_dma(adapter);
1714
1715 nx_decr_dev_ref_cnt(adapter);
1716
1717 clear_bit(__NX_RESETTING, &adapter->state);
1718 }
1719
1720 static int netxen_nic_attach_func(struct pci_dev *pdev)
1721 {
1722 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1723 struct net_device *netdev = adapter->netdev;
1724 int err;
1725
1726 err = pci_enable_device(pdev);
1727 if (err)
1728 return err;
1729
1730 pci_set_power_state(pdev, PCI_D0);
1731 pci_set_master(pdev);
1732 pci_restore_state(pdev);
1733
1734 adapter->ahw.crb_win = -1;
1735 adapter->ahw.ocm_win = -1;
1736
1737 err = netxen_start_firmware(adapter);
1738 if (err) {
1739 dev_err(&pdev->dev, "failed to start firmware\n");
1740 return err;
1741 }
1742
1743 if (netif_running(netdev)) {
1744 err = netxen_nic_attach(adapter);
1745 if (err)
1746 goto err_out;
1747
1748 err = netxen_nic_up(adapter, netdev);
1749 if (err)
1750 goto err_out_detach;
1751
1752 netxen_restore_indev_addr(netdev, NETDEV_UP);
1753 }
1754
1755 netif_device_attach(netdev);
1756 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1757 return 0;
1758
1759 err_out_detach:
1760 netxen_nic_detach(adapter);
1761 err_out:
1762 nx_decr_dev_ref_cnt(adapter);
1763 return err;
1764 }
1765
1766 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1767 pci_channel_state_t state)
1768 {
1769 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1770
1771 if (state == pci_channel_io_perm_failure)
1772 return PCI_ERS_RESULT_DISCONNECT;
1773
1774 if (nx_dev_request_aer(adapter))
1775 return PCI_ERS_RESULT_RECOVERED;
1776
1777 netxen_nic_detach_func(adapter);
1778
1779 pci_disable_device(pdev);
1780
1781 return PCI_ERS_RESULT_NEED_RESET;
1782 }
1783
1784 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1785 {
1786 int err = 0;
1787
1788 err = netxen_nic_attach_func(pdev);
1789
1790 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1791 }
1792
1793 static void netxen_io_resume(struct pci_dev *pdev)
1794 {
1795 pci_cleanup_aer_uncorrect_error_status(pdev);
1796 }
1797
1798 static void netxen_nic_shutdown(struct pci_dev *pdev)
1799 {
1800 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1801
1802 netxen_nic_detach_func(adapter);
1803
1804 if (pci_save_state(pdev))
1805 return;
1806
1807 if (netxen_nic_wol_supported(adapter)) {
1808 pci_enable_wake(pdev, PCI_D3cold, 1);
1809 pci_enable_wake(pdev, PCI_D3hot, 1);
1810 }
1811
1812 pci_disable_device(pdev);
1813 }
1814
1815 #ifdef CONFIG_PM
1816 static int
1817 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1818 {
1819 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1820 int retval;
1821
1822 netxen_nic_detach_func(adapter);
1823
1824 retval = pci_save_state(pdev);
1825 if (retval)
1826 return retval;
1827
1828 if (netxen_nic_wol_supported(adapter)) {
1829 pci_enable_wake(pdev, PCI_D3cold, 1);
1830 pci_enable_wake(pdev, PCI_D3hot, 1);
1831 }
1832
1833 pci_disable_device(pdev);
1834 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1835
1836 return 0;
1837 }
1838
1839 static int
1840 netxen_nic_resume(struct pci_dev *pdev)
1841 {
1842 return netxen_nic_attach_func(pdev);
1843 }
1844 #endif
1845
1846 static int netxen_nic_open(struct net_device *netdev)
1847 {
1848 struct netxen_adapter *adapter = netdev_priv(netdev);
1849 int err = 0;
1850
1851 if (adapter->driver_mismatch)
1852 return -EIO;
1853
1854 err = netxen_nic_attach(adapter);
1855 if (err)
1856 return err;
1857
1858 err = __netxen_nic_up(adapter, netdev);
1859 if (err)
1860 goto err_out;
1861
1862 netif_start_queue(netdev);
1863
1864 return 0;
1865
1866 err_out:
1867 netxen_nic_detach(adapter);
1868 return err;
1869 }
1870
1871 /*
1872 * netxen_nic_close - Disables a network interface entry point
1873 */
1874 static int netxen_nic_close(struct net_device *netdev)
1875 {
1876 struct netxen_adapter *adapter = netdev_priv(netdev);
1877
1878 __netxen_nic_down(adapter, netdev);
1879 return 0;
1880 }
1881
1882 static void
1883 netxen_tso_check(struct net_device *netdev,
1884 struct nx_host_tx_ring *tx_ring,
1885 struct cmd_desc_type0 *first_desc,
1886 struct sk_buff *skb)
1887 {
1888 u8 opcode = TX_ETHER_PKT;
1889 __be16 protocol = skb->protocol;
1890 u16 flags = 0, vid = 0;
1891 u32 producer;
1892 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1893 struct cmd_desc_type0 *hwdesc;
1894 struct vlan_ethhdr *vh;
1895
1896 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1897
1898 vh = (struct vlan_ethhdr *)skb->data;
1899 protocol = vh->h_vlan_encapsulated_proto;
1900 flags = FLAGS_VLAN_TAGGED;
1901
1902 } else if (skb_vlan_tag_present(skb)) {
1903 flags = FLAGS_VLAN_OOB;
1904 vid = skb_vlan_tag_get(skb);
1905 netxen_set_tx_vlan_tci(first_desc, vid);
1906 vlan_oob = 1;
1907 }
1908
1909 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1910 skb_shinfo(skb)->gso_size > 0) {
1911
1912 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1913
1914 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1915 first_desc->total_hdr_length = hdr_len;
1916 if (vlan_oob) {
1917 first_desc->total_hdr_length += VLAN_HLEN;
1918 first_desc->tcp_hdr_offset = VLAN_HLEN;
1919 first_desc->ip_hdr_offset = VLAN_HLEN;
1920 /* Only in case of TSO on vlan device */
1921 flags |= FLAGS_VLAN_TAGGED;
1922 }
1923
1924 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1925 TX_TCP_LSO6 : TX_TCP_LSO;
1926 tso = 1;
1927
1928 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1929 u8 l4proto;
1930
1931 if (protocol == cpu_to_be16(ETH_P_IP)) {
1932 l4proto = ip_hdr(skb)->protocol;
1933
1934 if (l4proto == IPPROTO_TCP)
1935 opcode = TX_TCP_PKT;
1936 else if(l4proto == IPPROTO_UDP)
1937 opcode = TX_UDP_PKT;
1938 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1939 l4proto = ipv6_hdr(skb)->nexthdr;
1940
1941 if (l4proto == IPPROTO_TCP)
1942 opcode = TX_TCPV6_PKT;
1943 else if(l4proto == IPPROTO_UDP)
1944 opcode = TX_UDPV6_PKT;
1945 }
1946 }
1947
1948 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1949 first_desc->ip_hdr_offset += skb_network_offset(skb);
1950 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1951
1952 if (!tso)
1953 return;
1954
1955 /* For LSO, we need to copy the MAC/IP/TCP headers into
1956 * the descriptor ring
1957 */
1958 producer = tx_ring->producer;
1959 copied = 0;
1960 offset = 2;
1961
1962 if (vlan_oob) {
1963 /* Create a TSO vlan header template for firmware */
1964
1965 hwdesc = &tx_ring->desc_head[producer];
1966 tx_ring->cmd_buf_arr[producer].skb = NULL;
1967
1968 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1969 hdr_len + VLAN_HLEN);
1970
1971 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1972 skb_copy_from_linear_data(skb, vh, 12);
1973 vh->h_vlan_proto = htons(ETH_P_8021Q);
1974 vh->h_vlan_TCI = htons(vid);
1975 skb_copy_from_linear_data_offset(skb, 12,
1976 (char *)vh + 16, copy_len - 16);
1977
1978 copied = copy_len - VLAN_HLEN;
1979 offset = 0;
1980
1981 producer = get_next_index(producer, tx_ring->num_desc);
1982 }
1983
1984 while (copied < hdr_len) {
1985
1986 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1987 (hdr_len - copied));
1988
1989 hwdesc = &tx_ring->desc_head[producer];
1990 tx_ring->cmd_buf_arr[producer].skb = NULL;
1991
1992 skb_copy_from_linear_data_offset(skb, copied,
1993 (char *)hwdesc + offset, copy_len);
1994
1995 copied += copy_len;
1996 offset = 0;
1997
1998 producer = get_next_index(producer, tx_ring->num_desc);
1999 }
2000
2001 tx_ring->producer = producer;
2002 barrier();
2003 }
2004
2005 static int
2006 netxen_map_tx_skb(struct pci_dev *pdev,
2007 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
2008 {
2009 struct netxen_skb_frag *nf;
2010 struct skb_frag_struct *frag;
2011 int i, nr_frags;
2012 dma_addr_t map;
2013
2014 nr_frags = skb_shinfo(skb)->nr_frags;
2015 nf = &pbuf->frag_array[0];
2016
2017 map = pci_map_single(pdev, skb->data,
2018 skb_headlen(skb), PCI_DMA_TODEVICE);
2019 if (pci_dma_mapping_error(pdev, map))
2020 goto out_err;
2021
2022 nf->dma = map;
2023 nf->length = skb_headlen(skb);
2024
2025 for (i = 0; i < nr_frags; i++) {
2026 frag = &skb_shinfo(skb)->frags[i];
2027 nf = &pbuf->frag_array[i+1];
2028
2029 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
2030 DMA_TO_DEVICE);
2031 if (dma_mapping_error(&pdev->dev, map))
2032 goto unwind;
2033
2034 nf->dma = map;
2035 nf->length = skb_frag_size(frag);
2036 }
2037
2038 return 0;
2039
2040 unwind:
2041 while (--i >= 0) {
2042 nf = &pbuf->frag_array[i+1];
2043 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2044 nf->dma = 0ULL;
2045 }
2046
2047 nf = &pbuf->frag_array[0];
2048 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2049 nf->dma = 0ULL;
2050
2051 out_err:
2052 return -ENOMEM;
2053 }
2054
2055 static inline void
2056 netxen_clear_cmddesc(u64 *desc)
2057 {
2058 desc[0] = 0ULL;
2059 desc[2] = 0ULL;
2060 }
2061
2062 static netdev_tx_t
2063 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2064 {
2065 struct netxen_adapter *adapter = netdev_priv(netdev);
2066 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
2067 struct netxen_cmd_buffer *pbuf;
2068 struct netxen_skb_frag *buffrag;
2069 struct cmd_desc_type0 *hwdesc, *first_desc;
2070 struct pci_dev *pdev;
2071 int i, k;
2072 int delta = 0;
2073 struct skb_frag_struct *frag;
2074
2075 u32 producer;
2076 int frag_count, no_of_desc;
2077 u32 num_txd = tx_ring->num_desc;
2078
2079 frag_count = skb_shinfo(skb)->nr_frags + 1;
2080
2081 /* 14 frags supported for normal packet and
2082 * 32 frags supported for TSO packet
2083 */
2084 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
2085
2086 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
2087 frag = &skb_shinfo(skb)->frags[i];
2088 delta += skb_frag_size(frag);
2089 }
2090
2091 if (!__pskb_pull_tail(skb, delta))
2092 goto drop_packet;
2093
2094 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2095 }
2096 /* 4 fragments per cmd des */
2097 no_of_desc = (frag_count + 3) >> 2;
2098
2099 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2100 netif_stop_queue(netdev);
2101 smp_mb();
2102 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
2103 netif_start_queue(netdev);
2104 else
2105 return NETDEV_TX_BUSY;
2106 }
2107
2108 producer = tx_ring->producer;
2109 pbuf = &tx_ring->cmd_buf_arr[producer];
2110
2111 pdev = adapter->pdev;
2112
2113 if (netxen_map_tx_skb(pdev, skb, pbuf))
2114 goto drop_packet;
2115
2116 pbuf->skb = skb;
2117 pbuf->frag_count = frag_count;
2118
2119 first_desc = hwdesc = &tx_ring->desc_head[producer];
2120 netxen_clear_cmddesc((u64 *)hwdesc);
2121
2122 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
2123 netxen_set_tx_port(first_desc, adapter->portnum);
2124
2125 for (i = 0; i < frag_count; i++) {
2126
2127 k = i % 4;
2128
2129 if ((k == 0) && (i > 0)) {
2130 /* move to next desc.*/
2131 producer = get_next_index(producer, num_txd);
2132 hwdesc = &tx_ring->desc_head[producer];
2133 netxen_clear_cmddesc((u64 *)hwdesc);
2134 tx_ring->cmd_buf_arr[producer].skb = NULL;
2135 }
2136
2137 buffrag = &pbuf->frag_array[i];
2138
2139 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2140 switch (k) {
2141 case 0:
2142 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2143 break;
2144 case 1:
2145 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2146 break;
2147 case 2:
2148 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2149 break;
2150 case 3:
2151 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2152 break;
2153 }
2154 }
2155
2156 tx_ring->producer = get_next_index(producer, num_txd);
2157
2158 netxen_tso_check(netdev, tx_ring, first_desc, skb);
2159
2160 adapter->stats.txbytes += skb->len;
2161 adapter->stats.xmitcalled++;
2162
2163 netxen_nic_update_cmd_producer(adapter, tx_ring);
2164
2165 return NETDEV_TX_OK;
2166
2167 drop_packet:
2168 adapter->stats.txdropped++;
2169 dev_kfree_skb_any(skb);
2170 return NETDEV_TX_OK;
2171 }
2172
2173 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
2174 {
2175 struct net_device *netdev = adapter->netdev;
2176 uint32_t temp, temp_state, temp_val;
2177 int rv = 0;
2178
2179 temp = NXRD32(adapter, CRB_TEMP_STATE);
2180
2181 temp_state = nx_get_temp_state(temp);
2182 temp_val = nx_get_temp_val(temp);
2183
2184 if (temp_state == NX_TEMP_PANIC) {
2185 printk(KERN_ALERT
2186 "%s: Device temperature %d degrees C exceeds"
2187 " maximum allowed. Hardware has been shut down.\n",
2188 netdev->name, temp_val);
2189 rv = 1;
2190 } else if (temp_state == NX_TEMP_WARN) {
2191 if (adapter->temp == NX_TEMP_NORMAL) {
2192 printk(KERN_ALERT
2193 "%s: Device temperature %d degrees C "
2194 "exceeds operating range."
2195 " Immediate action needed.\n",
2196 netdev->name, temp_val);
2197 }
2198 } else {
2199 if (adapter->temp == NX_TEMP_WARN) {
2200 printk(KERN_INFO
2201 "%s: Device temperature is now %d degrees C"
2202 " in normal range.\n", netdev->name,
2203 temp_val);
2204 }
2205 }
2206 adapter->temp = temp_state;
2207 return rv;
2208 }
2209
2210 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
2211 {
2212 struct net_device *netdev = adapter->netdev;
2213
2214 if (adapter->ahw.linkup && !linkup) {
2215 printk(KERN_INFO "%s: %s NIC Link is down\n",
2216 netxen_nic_driver_name, netdev->name);
2217 adapter->ahw.linkup = 0;
2218 if (netif_running(netdev)) {
2219 netif_carrier_off(netdev);
2220 netif_stop_queue(netdev);
2221 }
2222 adapter->link_changed = !adapter->has_link_events;
2223 } else if (!adapter->ahw.linkup && linkup) {
2224 printk(KERN_INFO "%s: %s NIC Link is up\n",
2225 netxen_nic_driver_name, netdev->name);
2226 adapter->ahw.linkup = 1;
2227 if (netif_running(netdev)) {
2228 netif_carrier_on(netdev);
2229 netif_wake_queue(netdev);
2230 }
2231 adapter->link_changed = !adapter->has_link_events;
2232 }
2233 }
2234
2235 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2236 {
2237 u32 val, port, linkup;
2238
2239 port = adapter->physical_port;
2240
2241 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2242 val = NXRD32(adapter, CRB_XG_STATE_P3);
2243 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2244 linkup = (val == XG_LINK_UP_P3);
2245 } else {
2246 val = NXRD32(adapter, CRB_XG_STATE);
2247 val = (val >> port*8) & 0xff;
2248 linkup = (val == XG_LINK_UP);
2249 }
2250
2251 netxen_advert_link_change(adapter, linkup);
2252 }
2253
2254 static void netxen_tx_timeout(struct net_device *netdev)
2255 {
2256 struct netxen_adapter *adapter = netdev_priv(netdev);
2257
2258 if (test_bit(__NX_RESETTING, &adapter->state))
2259 return;
2260
2261 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2262 schedule_work(&adapter->tx_timeout_task);
2263 }
2264
2265 static void netxen_tx_timeout_task(struct work_struct *work)
2266 {
2267 struct netxen_adapter *adapter =
2268 container_of(work, struct netxen_adapter, tx_timeout_task);
2269
2270 if (!netif_running(adapter->netdev))
2271 return;
2272
2273 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
2274 return;
2275
2276 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2277 goto request_reset;
2278
2279 rtnl_lock();
2280 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2281 /* try to scrub interrupt */
2282 netxen_napi_disable(adapter);
2283
2284 netxen_napi_enable(adapter);
2285
2286 netif_wake_queue(adapter->netdev);
2287
2288 clear_bit(__NX_RESETTING, &adapter->state);
2289 } else {
2290 clear_bit(__NX_RESETTING, &adapter->state);
2291 if (netxen_nic_reset_context(adapter)) {
2292 rtnl_unlock();
2293 goto request_reset;
2294 }
2295 }
2296 netif_trans_update(adapter->netdev);
2297 rtnl_unlock();
2298 return;
2299
2300 request_reset:
2301 adapter->need_fw_reset = 1;
2302 clear_bit(__NX_RESETTING, &adapter->state);
2303 }
2304
2305 static void netxen_nic_get_stats(struct net_device *netdev,
2306 struct rtnl_link_stats64 *stats)
2307 {
2308 struct netxen_adapter *adapter = netdev_priv(netdev);
2309
2310 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2311 stats->tx_packets = adapter->stats.xmitfinished;
2312 stats->rx_bytes = adapter->stats.rxbytes;
2313 stats->tx_bytes = adapter->stats.txbytes;
2314 stats->rx_dropped = adapter->stats.rxdropped;
2315 stats->tx_dropped = adapter->stats.txdropped;
2316 }
2317
2318 static irqreturn_t netxen_intr(int irq, void *data)
2319 {
2320 struct nx_host_sds_ring *sds_ring = data;
2321 struct netxen_adapter *adapter = sds_ring->adapter;
2322 u32 status = 0;
2323
2324 status = readl(adapter->isr_int_vec);
2325
2326 if (!(status & adapter->int_vec_bit))
2327 return IRQ_NONE;
2328
2329 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2330 /* check interrupt state machine, to be sure */
2331 status = readl(adapter->crb_int_state_reg);
2332 if (!ISR_LEGACY_INT_TRIGGERED(status))
2333 return IRQ_NONE;
2334
2335 } else {
2336 unsigned long our_int = 0;
2337
2338 our_int = readl(adapter->crb_int_state_reg);
2339
2340 /* not our interrupt */
2341 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2342 return IRQ_NONE;
2343
2344 /* claim interrupt */
2345 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2346
2347 /* clear interrupt */
2348 netxen_nic_disable_int(sds_ring);
2349 }
2350
2351 writel(0xffffffff, adapter->tgt_status_reg);
2352 /* read twice to ensure write is flushed */
2353 readl(adapter->isr_int_vec);
2354 readl(adapter->isr_int_vec);
2355
2356 napi_schedule(&sds_ring->napi);
2357
2358 return IRQ_HANDLED;
2359 }
2360
2361 static irqreturn_t netxen_msi_intr(int irq, void *data)
2362 {
2363 struct nx_host_sds_ring *sds_ring = data;
2364 struct netxen_adapter *adapter = sds_ring->adapter;
2365
2366 /* clear interrupt */
2367 writel(0xffffffff, adapter->tgt_status_reg);
2368
2369 napi_schedule(&sds_ring->napi);
2370 return IRQ_HANDLED;
2371 }
2372
2373 static irqreturn_t netxen_msix_intr(int irq, void *data)
2374 {
2375 struct nx_host_sds_ring *sds_ring = data;
2376
2377 napi_schedule(&sds_ring->napi);
2378 return IRQ_HANDLED;
2379 }
2380
2381 static int netxen_nic_poll(struct napi_struct *napi, int budget)
2382 {
2383 struct nx_host_sds_ring *sds_ring =
2384 container_of(napi, struct nx_host_sds_ring, napi);
2385
2386 struct netxen_adapter *adapter = sds_ring->adapter;
2387
2388 int tx_complete;
2389 int work_done;
2390
2391 tx_complete = netxen_process_cmd_ring(adapter);
2392
2393 work_done = netxen_process_rcv_ring(sds_ring, budget);
2394
2395 if (!tx_complete)
2396 work_done = budget;
2397
2398 if (work_done < budget) {
2399 napi_complete_done(&sds_ring->napi, work_done);
2400 if (test_bit(__NX_DEV_UP, &adapter->state))
2401 netxen_nic_enable_int(sds_ring);
2402 }
2403
2404 return work_done;
2405 }
2406
2407 #ifdef CONFIG_NET_POLL_CONTROLLER
2408 static void netxen_nic_poll_controller(struct net_device *netdev)
2409 {
2410 int ring;
2411 struct nx_host_sds_ring *sds_ring;
2412 struct netxen_adapter *adapter = netdev_priv(netdev);
2413 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2414
2415 disable_irq(adapter->irq);
2416 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2417 sds_ring = &recv_ctx->sds_rings[ring];
2418 netxen_intr(adapter->irq, sds_ring);
2419 }
2420 enable_irq(adapter->irq);
2421 }
2422 #endif
2423
2424 static int
2425 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2426 {
2427 int count;
2428 if (netxen_api_lock(adapter))
2429 return -EIO;
2430
2431 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2432
2433 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2434
2435 netxen_api_unlock(adapter);
2436 return count;
2437 }
2438
2439 static int
2440 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2441 {
2442 int count, state;
2443 if (netxen_api_lock(adapter))
2444 return -EIO;
2445
2446 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2447 WARN_ON(count == 0);
2448
2449 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2450 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2451
2452 if (count == 0 && state != NX_DEV_FAILED)
2453 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2454
2455 netxen_api_unlock(adapter);
2456 return count;
2457 }
2458
2459 static int
2460 nx_dev_request_aer(struct netxen_adapter *adapter)
2461 {
2462 u32 state;
2463 int ret = -EINVAL;
2464
2465 if (netxen_api_lock(adapter))
2466 return ret;
2467
2468 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2469
2470 if (state == NX_DEV_NEED_AER)
2471 ret = 0;
2472 else if (state == NX_DEV_READY) {
2473 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2474 ret = 0;
2475 }
2476
2477 netxen_api_unlock(adapter);
2478 return ret;
2479 }
2480
2481 int
2482 nx_dev_request_reset(struct netxen_adapter *adapter)
2483 {
2484 u32 state;
2485 int ret = -EINVAL;
2486
2487 if (netxen_api_lock(adapter))
2488 return ret;
2489
2490 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2491
2492 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED)
2493 ret = 0;
2494 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
2495 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2496 adapter->flags |= NETXEN_FW_RESET_OWNER;
2497 ret = 0;
2498 }
2499
2500 netxen_api_unlock(adapter);
2501
2502 return ret;
2503 }
2504
2505 static int
2506 netxen_can_start_firmware(struct netxen_adapter *adapter)
2507 {
2508 int count;
2509 int can_start = 0;
2510
2511 if (netxen_api_lock(adapter)) {
2512 nx_incr_dev_ref_cnt(adapter);
2513 return -1;
2514 }
2515
2516 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2517
2518 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2519 count = 0;
2520
2521 if (count == 0) {
2522 can_start = 1;
2523 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2524 }
2525
2526 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2527
2528 netxen_api_unlock(adapter);
2529
2530 return can_start;
2531 }
2532
2533 static void
2534 netxen_schedule_work(struct netxen_adapter *adapter,
2535 work_func_t func, int delay)
2536 {
2537 INIT_DELAYED_WORK(&adapter->fw_work, func);
2538 schedule_delayed_work(&adapter->fw_work, delay);
2539 }
2540
2541 static void
2542 netxen_cancel_fw_work(struct netxen_adapter *adapter)
2543 {
2544 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2545 msleep(10);
2546
2547 cancel_delayed_work_sync(&adapter->fw_work);
2548 }
2549
2550 static void
2551 netxen_attach_work(struct work_struct *work)
2552 {
2553 struct netxen_adapter *adapter = container_of(work,
2554 struct netxen_adapter, fw_work.work);
2555 struct net_device *netdev = adapter->netdev;
2556 int err = 0;
2557
2558 if (netif_running(netdev)) {
2559 err = netxen_nic_attach(adapter);
2560 if (err)
2561 goto done;
2562
2563 err = netxen_nic_up(adapter, netdev);
2564 if (err) {
2565 netxen_nic_detach(adapter);
2566 goto done;
2567 }
2568
2569 netxen_restore_indev_addr(netdev, NETDEV_UP);
2570 }
2571
2572 netif_device_attach(netdev);
2573
2574 done:
2575 adapter->fw_fail_cnt = 0;
2576 clear_bit(__NX_RESETTING, &adapter->state);
2577 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2578 }
2579
2580 static void
2581 netxen_fwinit_work(struct work_struct *work)
2582 {
2583 struct netxen_adapter *adapter = container_of(work,
2584 struct netxen_adapter, fw_work.work);
2585 int dev_state;
2586 int count;
2587 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2588 if (adapter->flags & NETXEN_FW_RESET_OWNER) {
2589 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2590 WARN_ON(count == 0);
2591 if (count == 1) {
2592 if (adapter->mdump.md_enabled) {
2593 rtnl_lock();
2594 netxen_dump_fw(adapter);
2595 rtnl_unlock();
2596 }
2597 adapter->flags &= ~NETXEN_FW_RESET_OWNER;
2598 if (netxen_api_lock(adapter)) {
2599 clear_bit(__NX_RESETTING, &adapter->state);
2600 NXWR32(adapter, NX_CRB_DEV_STATE,
2601 NX_DEV_FAILED);
2602 return;
2603 }
2604 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2605 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2606 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2607 dev_state = NX_DEV_COLD;
2608 netxen_api_unlock(adapter);
2609 }
2610 }
2611
2612 switch (dev_state) {
2613 case NX_DEV_COLD:
2614 case NX_DEV_READY:
2615 if (!netxen_start_firmware(adapter)) {
2616 netxen_schedule_work(adapter, netxen_attach_work, 0);
2617 return;
2618 }
2619 break;
2620
2621 case NX_DEV_NEED_RESET:
2622 case NX_DEV_INITALIZING:
2623 netxen_schedule_work(adapter,
2624 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2625 return;
2626
2627 case NX_DEV_FAILED:
2628 default:
2629 nx_incr_dev_ref_cnt(adapter);
2630 break;
2631 }
2632
2633 if (netxen_api_lock(adapter)) {
2634 clear_bit(__NX_RESETTING, &adapter->state);
2635 return;
2636 }
2637 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED);
2638 netxen_api_unlock(adapter);
2639 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n",
2640 adapter->netdev->name);
2641
2642 clear_bit(__NX_RESETTING, &adapter->state);
2643 }
2644
2645 static void
2646 netxen_detach_work(struct work_struct *work)
2647 {
2648 struct netxen_adapter *adapter = container_of(work,
2649 struct netxen_adapter, fw_work.work);
2650 struct net_device *netdev = adapter->netdev;
2651 int ref_cnt = 0, delay;
2652 u32 status;
2653
2654 netif_device_detach(netdev);
2655
2656 netxen_nic_down(adapter, netdev);
2657
2658 rtnl_lock();
2659 netxen_nic_detach(adapter);
2660 rtnl_unlock();
2661
2662 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2663
2664 if (status & NX_RCODE_FATAL_ERROR)
2665 goto err_ret;
2666
2667 if (adapter->temp == NX_TEMP_PANIC)
2668 goto err_ret;
2669
2670 if (!(adapter->flags & NETXEN_FW_RESET_OWNER))
2671 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2672
2673 if (ref_cnt == -EIO)
2674 goto err_ret;
2675
2676 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2677
2678 adapter->fw_wait_cnt = 0;
2679 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2680
2681 return;
2682
2683 err_ret:
2684 clear_bit(__NX_RESETTING, &adapter->state);
2685 }
2686
2687 static int
2688 netxen_check_health(struct netxen_adapter *adapter)
2689 {
2690 u32 state, heartbit;
2691 u32 peg_status;
2692 struct net_device *netdev = adapter->netdev;
2693
2694 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2695 if (state == NX_DEV_NEED_AER)
2696 return 0;
2697
2698 if (netxen_nic_check_temp(adapter))
2699 goto detach;
2700
2701 if (adapter->need_fw_reset) {
2702 if (nx_dev_request_reset(adapter))
2703 return 0;
2704 goto detach;
2705 }
2706
2707 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2708 * 1. Tx timeout 2. Fw hang
2709 * Send request to destroy context in case of tx timeout only
2710 * and doesn't required in case of Fw hang
2711 */
2712 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) {
2713 adapter->need_fw_reset = 1;
2714 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2715 goto detach;
2716 }
2717
2718 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2719 return 0;
2720
2721 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2722 if (heartbit != adapter->heartbit) {
2723 adapter->heartbit = heartbit;
2724 adapter->fw_fail_cnt = 0;
2725 if (adapter->need_fw_reset)
2726 goto detach;
2727 return 0;
2728 }
2729
2730 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2731 return 0;
2732
2733 if (nx_dev_request_reset(adapter))
2734 return 0;
2735
2736 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2737
2738 dev_err(&netdev->dev, "firmware hang detected\n");
2739 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2740 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2741 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2742 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2743 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2744 "PEG_NET_4_PC: 0x%x\n",
2745 peg_status,
2746 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2),
2747 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c),
2748 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c),
2749 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c),
2750 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c),
2751 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c));
2752 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67)
2753 dev_err(&adapter->pdev->dev,
2754 "Firmware aborted with error code 0x00006700. "
2755 "Device is being reset.\n");
2756 detach:
2757 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2758 !test_and_set_bit(__NX_RESETTING, &adapter->state))
2759 netxen_schedule_work(adapter, netxen_detach_work, 0);
2760 return 1;
2761 }
2762
2763 static void
2764 netxen_fw_poll_work(struct work_struct *work)
2765 {
2766 struct netxen_adapter *adapter = container_of(work,
2767 struct netxen_adapter, fw_work.work);
2768
2769 if (test_bit(__NX_RESETTING, &adapter->state))
2770 goto reschedule;
2771
2772 if (test_bit(__NX_DEV_UP, &adapter->state) &&
2773 !(adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)) {
2774 if (!adapter->has_link_events) {
2775
2776 netxen_nic_handle_phy_intr(adapter);
2777
2778 if (adapter->link_changed)
2779 netxen_nic_set_link_parameters(adapter);
2780 }
2781 }
2782
2783 if (netxen_check_health(adapter))
2784 return;
2785
2786 reschedule:
2787 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2788 }
2789
2790 static ssize_t
2791 netxen_store_bridged_mode(struct device *dev,
2792 struct device_attribute *attr, const char *buf, size_t len)
2793 {
2794 struct net_device *net = to_net_dev(dev);
2795 struct netxen_adapter *adapter = netdev_priv(net);
2796 unsigned long new;
2797 int ret = -EINVAL;
2798
2799 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2800 goto err_out;
2801
2802 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2803 goto err_out;
2804
2805 if (kstrtoul(buf, 2, &new))
2806 goto err_out;
2807
2808 if (!netxen_config_bridged_mode(adapter, !!new))
2809 ret = len;
2810
2811 err_out:
2812 return ret;
2813 }
2814
2815 static ssize_t
2816 netxen_show_bridged_mode(struct device *dev,
2817 struct device_attribute *attr, char *buf)
2818 {
2819 struct net_device *net = to_net_dev(dev);
2820 struct netxen_adapter *adapter;
2821 int bridged_mode = 0;
2822
2823 adapter = netdev_priv(net);
2824
2825 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2826 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2827
2828 return sprintf(buf, "%d\n", bridged_mode);
2829 }
2830
2831 static struct device_attribute dev_attr_bridged_mode = {
2832 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2833 .show = netxen_show_bridged_mode,
2834 .store = netxen_store_bridged_mode,
2835 };
2836
2837 static ssize_t
2838 netxen_store_diag_mode(struct device *dev,
2839 struct device_attribute *attr, const char *buf, size_t len)
2840 {
2841 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2842 unsigned long new;
2843
2844 if (kstrtoul(buf, 2, &new))
2845 return -EINVAL;
2846
2847 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2848 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2849
2850 return len;
2851 }
2852
2853 static ssize_t
2854 netxen_show_diag_mode(struct device *dev,
2855 struct device_attribute *attr, char *buf)
2856 {
2857 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2858
2859 return sprintf(buf, "%d\n",
2860 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2861 }
2862
2863 static struct device_attribute dev_attr_diag_mode = {
2864 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2865 .show = netxen_show_diag_mode,
2866 .store = netxen_store_diag_mode,
2867 };
2868
2869 static int
2870 netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2871 loff_t offset, size_t size)
2872 {
2873 size_t crb_size = 4;
2874
2875 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2876 return -EIO;
2877
2878 if (offset < NETXEN_PCI_CRBSPACE) {
2879 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2880 return -EINVAL;
2881
2882 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2883 NETXEN_PCI_CAMQM_2M_END))
2884 crb_size = 8;
2885 else
2886 return -EINVAL;
2887 }
2888
2889 if ((size != crb_size) || (offset & (crb_size-1)))
2890 return -EINVAL;
2891
2892 return 0;
2893 }
2894
2895 static ssize_t
2896 netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2897 struct bin_attribute *attr,
2898 char *buf, loff_t offset, size_t size)
2899 {
2900 struct device *dev = kobj_to_dev(kobj);
2901 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2902 u32 data;
2903 u64 qmdata;
2904 int ret;
2905
2906 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2907 if (ret != 0)
2908 return ret;
2909
2910 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2911 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2912 NETXEN_PCI_CAMQM_2M_END)) {
2913 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2914 memcpy(buf, &qmdata, size);
2915 } else {
2916 data = NXRD32(adapter, offset);
2917 memcpy(buf, &data, size);
2918 }
2919
2920 return size;
2921 }
2922
2923 static ssize_t
2924 netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2925 struct bin_attribute *attr,
2926 char *buf, loff_t offset, size_t size)
2927 {
2928 struct device *dev = kobj_to_dev(kobj);
2929 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2930 u32 data;
2931 u64 qmdata;
2932 int ret;
2933
2934 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2935 if (ret != 0)
2936 return ret;
2937
2938 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2939 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2940 NETXEN_PCI_CAMQM_2M_END)) {
2941 memcpy(&qmdata, buf, size);
2942 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2943 } else {
2944 memcpy(&data, buf, size);
2945 NXWR32(adapter, offset, data);
2946 }
2947
2948 return size;
2949 }
2950
2951 static int
2952 netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2953 loff_t offset, size_t size)
2954 {
2955 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2956 return -EIO;
2957
2958 if ((size != 8) || (offset & 0x7))
2959 return -EIO;
2960
2961 return 0;
2962 }
2963
2964 static ssize_t
2965 netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2966 struct bin_attribute *attr,
2967 char *buf, loff_t offset, size_t size)
2968 {
2969 struct device *dev = kobj_to_dev(kobj);
2970 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2971 u64 data;
2972 int ret;
2973
2974 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2975 if (ret != 0)
2976 return ret;
2977
2978 if (adapter->pci_mem_read(adapter, offset, &data))
2979 return -EIO;
2980
2981 memcpy(buf, &data, size);
2982
2983 return size;
2984 }
2985
2986 static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
2987 struct bin_attribute *attr, char *buf,
2988 loff_t offset, size_t size)
2989 {
2990 struct device *dev = kobj_to_dev(kobj);
2991 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2992 u64 data;
2993 int ret;
2994
2995 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2996 if (ret != 0)
2997 return ret;
2998
2999 memcpy(&data, buf, size);
3000
3001 if (adapter->pci_mem_write(adapter, offset, data))
3002 return -EIO;
3003
3004 return size;
3005 }
3006
3007
3008 static const struct bin_attribute bin_attr_crb = {
3009 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
3010 .size = 0,
3011 .read = netxen_sysfs_read_crb,
3012 .write = netxen_sysfs_write_crb,
3013 };
3014
3015 static const struct bin_attribute bin_attr_mem = {
3016 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
3017 .size = 0,
3018 .read = netxen_sysfs_read_mem,
3019 .write = netxen_sysfs_write_mem,
3020 };
3021
3022 static ssize_t
3023 netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj,
3024 struct bin_attribute *attr,
3025 char *buf, loff_t offset, size_t size)
3026 {
3027 struct device *dev = kobj_to_dev(kobj);
3028 struct netxen_adapter *adapter = dev_get_drvdata(dev);
3029 struct net_device *netdev = adapter->netdev;
3030 struct netxen_dimm_cfg dimm;
3031 u8 dw, rows, cols, banks, ranks;
3032 u32 val;
3033
3034 if (size < attr->size) {
3035 netdev_err(netdev, "Invalid size\n");
3036 return -EINVAL;
3037 }
3038
3039 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg));
3040 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY);
3041
3042 /* Checks if DIMM info is valid. */
3043 if (val & NETXEN_DIMM_VALID_FLAG) {
3044 netdev_err(netdev, "Invalid DIMM flag\n");
3045 dimm.presence = 0xff;
3046 goto out;
3047 }
3048
3049 rows = NETXEN_DIMM_NUMROWS(val);
3050 cols = NETXEN_DIMM_NUMCOLS(val);
3051 ranks = NETXEN_DIMM_NUMRANKS(val);
3052 banks = NETXEN_DIMM_NUMBANKS(val);
3053 dw = NETXEN_DIMM_DATAWIDTH(val);
3054
3055 dimm.presence = (val & NETXEN_DIMM_PRESENT);
3056
3057 /* Checks if DIMM info is present. */
3058 if (!dimm.presence) {
3059 netdev_err(netdev, "DIMM not present\n");
3060 goto out;
3061 }
3062
3063 dimm.dimm_type = NETXEN_DIMM_TYPE(val);
3064
3065 switch (dimm.dimm_type) {
3066 case NETXEN_DIMM_TYPE_RDIMM:
3067 case NETXEN_DIMM_TYPE_UDIMM:
3068 case NETXEN_DIMM_TYPE_SO_DIMM:
3069 case NETXEN_DIMM_TYPE_Micro_DIMM:
3070 case NETXEN_DIMM_TYPE_Mini_RDIMM:
3071 case NETXEN_DIMM_TYPE_Mini_UDIMM:
3072 break;
3073 default:
3074 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type);
3075 goto out;
3076 }
3077
3078 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM)
3079 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM;
3080 else
3081 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val);
3082
3083 if (val & NETXEN_DIMM_SIZE) {
3084 dimm.size = NETXEN_DIMM_STD_MEM_SIZE;
3085 goto out;
3086 }
3087
3088 if (!rows) {
3089 netdev_err(netdev, "Invalid no of rows %x\n", rows);
3090 goto out;
3091 }
3092
3093 if (!cols) {
3094 netdev_err(netdev, "Invalid no of columns %x\n", cols);
3095 goto out;
3096 }
3097
3098 if (!banks) {
3099 netdev_err(netdev, "Invalid no of banks %x\n", banks);
3100 goto out;
3101 }
3102
3103 ranks += 1;
3104
3105 switch (dw) {
3106 case 0x0:
3107 dw = 32;
3108 break;
3109 case 0x1:
3110 dw = 33;
3111 break;
3112 case 0x2:
3113 dw = 36;
3114 break;
3115 case 0x3:
3116 dw = 64;
3117 break;
3118 case 0x4:
3119 dw = 72;
3120 break;
3121 case 0x5:
3122 dw = 80;
3123 break;
3124 case 0x6:
3125 dw = 128;
3126 break;
3127 case 0x7:
3128 dw = 144;
3129 break;
3130 default:
3131 netdev_err(netdev, "Invalid data-width %x\n", dw);
3132 goto out;
3133 }
3134
3135 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8;
3136 /* Size returned in MB. */
3137 dimm.size = (dimm.size) / 0x100000;
3138 out:
3139 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg));
3140 return sizeof(struct netxen_dimm_cfg);
3141
3142 }
3143
3144 static const struct bin_attribute bin_attr_dimm = {
3145 .attr = { .name = "dimm", .mode = (S_IRUGO | S_IWUSR) },
3146 .size = sizeof(struct netxen_dimm_cfg),
3147 .read = netxen_sysfs_read_dimm,
3148 };
3149
3150
3151 static void
3152 netxen_create_sysfs_entries(struct netxen_adapter *adapter)
3153 {
3154 struct device *dev = &adapter->pdev->dev;
3155
3156 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
3157 /* bridged_mode control */
3158 if (device_create_file(dev, &dev_attr_bridged_mode)) {
3159 dev_warn(dev,
3160 "failed to create bridged_mode sysfs entry\n");
3161 }
3162 }
3163 }
3164
3165 static void
3166 netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
3167 {
3168 struct device *dev = &adapter->pdev->dev;
3169
3170 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
3171 device_remove_file(dev, &dev_attr_bridged_mode);
3172 }
3173
3174 static void
3175 netxen_create_diag_entries(struct netxen_adapter *adapter)
3176 {
3177 struct pci_dev *pdev = adapter->pdev;
3178 struct device *dev;
3179
3180 dev = &pdev->dev;
3181 if (device_create_file(dev, &dev_attr_diag_mode))
3182 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3183 if (device_create_bin_file(dev, &bin_attr_crb))
3184 dev_info(dev, "failed to create crb sysfs entry\n");
3185 if (device_create_bin_file(dev, &bin_attr_mem))
3186 dev_info(dev, "failed to create mem sysfs entry\n");
3187 if (device_create_bin_file(dev, &bin_attr_dimm))
3188 dev_info(dev, "failed to create dimm sysfs entry\n");
3189 }
3190
3191
3192 static void
3193 netxen_remove_diag_entries(struct netxen_adapter *adapter)
3194 {
3195 struct pci_dev *pdev = adapter->pdev;
3196 struct device *dev = &pdev->dev;
3197
3198 device_remove_file(dev, &dev_attr_diag_mode);
3199 device_remove_bin_file(dev, &bin_attr_crb);
3200 device_remove_bin_file(dev, &bin_attr_mem);
3201 device_remove_bin_file(dev, &bin_attr_dimm);
3202 }
3203
3204 #ifdef CONFIG_INET
3205
3206 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
3207
3208 static int
3209 netxen_destip_supported(struct netxen_adapter *adapter)
3210 {
3211 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
3212 return 0;
3213
3214 if (adapter->ahw.cut_through)
3215 return 0;
3216
3217 return 1;
3218 }
3219
3220 static void
3221 netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
3222 {
3223 struct nx_ip_list *cur, *tmp_cur;
3224
3225 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) {
3226 if (master) {
3227 if (cur->master) {
3228 netxen_config_ipaddr(adapter, cur->ip_addr,
3229 NX_IP_DOWN);
3230 list_del(&cur->list);
3231 kfree(cur);
3232 }
3233 } else {
3234 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
3235 list_del(&cur->list);
3236 kfree(cur);
3237 }
3238 }
3239 }
3240
3241 static bool
3242 netxen_list_config_ip(struct netxen_adapter *adapter,
3243 struct in_ifaddr *ifa, unsigned long event)
3244 {
3245 struct net_device *dev;
3246 struct nx_ip_list *cur, *tmp_cur;
3247 struct list_head *head;
3248 bool ret = false;
3249
3250 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3251
3252 if (dev == NULL)
3253 goto out;
3254
3255 switch (event) {
3256 case NX_IP_UP:
3257 list_for_each(head, &adapter->ip_list) {
3258 cur = list_entry(head, struct nx_ip_list, list);
3259
3260 if (cur->ip_addr == ifa->ifa_address)
3261 goto out;
3262 }
3263
3264 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC);
3265 if (cur == NULL)
3266 goto out;
3267 if (is_vlan_dev(dev))
3268 dev = vlan_dev_real_dev(dev);
3269 cur->master = !!netif_is_bond_master(dev);
3270 cur->ip_addr = ifa->ifa_address;
3271 list_add_tail(&cur->list, &adapter->ip_list);
3272 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
3273 ret = true;
3274 break;
3275 case NX_IP_DOWN:
3276 list_for_each_entry_safe(cur, tmp_cur,
3277 &adapter->ip_list, list) {
3278 if (cur->ip_addr == ifa->ifa_address) {
3279 list_del(&cur->list);
3280 kfree(cur);
3281 netxen_config_ipaddr(adapter, ifa->ifa_address,
3282 NX_IP_DOWN);
3283 ret = true;
3284 break;
3285 }
3286 }
3287 }
3288 out:
3289 return ret;
3290 }
3291
3292 static void
3293 netxen_config_indev_addr(struct netxen_adapter *adapter,
3294 struct net_device *dev, unsigned long event)
3295 {
3296 struct in_device *indev;
3297
3298 if (!netxen_destip_supported(adapter))
3299 return;
3300
3301 indev = in_dev_get(dev);
3302 if (!indev)
3303 return;
3304
3305 for_ifa(indev) {
3306 switch (event) {
3307 case NETDEV_UP:
3308 netxen_list_config_ip(adapter, ifa, NX_IP_UP);
3309 break;
3310 case NETDEV_DOWN:
3311 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN);
3312 break;
3313 default:
3314 break;
3315 }
3316 } endfor_ifa(indev);
3317
3318 in_dev_put(indev);
3319 }
3320
3321 static void
3322 netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)
3323
3324 {
3325 struct netxen_adapter *adapter = netdev_priv(netdev);
3326 struct nx_ip_list *pos, *tmp_pos;
3327 unsigned long ip_event;
3328
3329 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3330 netxen_config_indev_addr(adapter, netdev, event);
3331
3332 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) {
3333 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
3334 }
3335 }
3336
3337 static inline bool
3338 netxen_config_checkdev(struct net_device *dev)
3339 {
3340 struct netxen_adapter *adapter;
3341
3342 if (!is_netxen_netdev(dev))
3343 return false;
3344 adapter = netdev_priv(dev);
3345 if (!adapter)
3346 return false;
3347 if (!netxen_destip_supported(adapter))
3348 return false;
3349 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3350 return false;
3351
3352 return true;
3353 }
3354
3355 /**
3356 * netxen_config_master - configure addresses based on master
3357 * @dev: netxen device
3358 * @event: netdev event
3359 */
3360 static void netxen_config_master(struct net_device *dev, unsigned long event)
3361 {
3362 struct net_device *master, *slave;
3363 struct netxen_adapter *adapter = netdev_priv(dev);
3364
3365 rcu_read_lock();
3366 master = netdev_master_upper_dev_get_rcu(dev);
3367 /*
3368 * This is the case where the netxen nic is being
3369 * enslaved and is dev_open()ed in bond_enslave()
3370 * Now we should program the bond's (and its vlans')
3371 * addresses in the netxen NIC.
3372 */
3373 if (master && netif_is_bond_master(master) &&
3374 !netif_is_bond_slave(dev)) {
3375 netxen_config_indev_addr(adapter, master, event);
3376 for_each_netdev_rcu(&init_net, slave)
3377 if (is_vlan_dev(slave) &&
3378 vlan_dev_real_dev(slave) == master)
3379 netxen_config_indev_addr(adapter, slave, event);
3380 }
3381 rcu_read_unlock();
3382 /*
3383 * This is the case where the netxen nic is being
3384 * released and is dev_close()ed in bond_release()
3385 * just before IFF_BONDING is stripped.
3386 */
3387 if (!master && dev->priv_flags & IFF_BONDING)
3388 netxen_free_ip_list(adapter, true);
3389 }
3390
3391 static int netxen_netdev_event(struct notifier_block *this,
3392 unsigned long event, void *ptr)
3393 {
3394 struct netxen_adapter *adapter;
3395 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3396 struct net_device *orig_dev = dev;
3397 struct net_device *slave;
3398
3399 recheck:
3400 if (dev == NULL)
3401 goto done;
3402
3403 if (is_vlan_dev(dev)) {
3404 dev = vlan_dev_real_dev(dev);
3405 goto recheck;
3406 }
3407 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3408 /* If this is a bonding device, look for netxen-based slaves*/
3409 if (netif_is_bond_master(dev)) {
3410 rcu_read_lock();
3411 for_each_netdev_in_bond_rcu(dev, slave) {
3412 if (!netxen_config_checkdev(slave))
3413 continue;
3414 adapter = netdev_priv(slave);
3415 netxen_config_indev_addr(adapter,
3416 orig_dev, event);
3417 }
3418 rcu_read_unlock();
3419 } else {
3420 if (!netxen_config_checkdev(dev))
3421 goto done;
3422 adapter = netdev_priv(dev);
3423 /* Act only if the actual netxen is the target */
3424 if (orig_dev == dev)
3425 netxen_config_master(dev, event);
3426 netxen_config_indev_addr(adapter, orig_dev, event);
3427 }
3428 }
3429 done:
3430 return NOTIFY_DONE;
3431 }
3432
3433 static int
3434 netxen_inetaddr_event(struct notifier_block *this,
3435 unsigned long event, void *ptr)
3436 {
3437 struct netxen_adapter *adapter;
3438 struct net_device *dev, *slave;
3439 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3440 unsigned long ip_event;
3441
3442 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3443 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3444 recheck:
3445 if (dev == NULL)
3446 goto done;
3447
3448 if (is_vlan_dev(dev)) {
3449 dev = vlan_dev_real_dev(dev);
3450 goto recheck;
3451 }
3452 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3453 /* If this is a bonding device, look for netxen-based slaves*/
3454 if (netif_is_bond_master(dev)) {
3455 rcu_read_lock();
3456 for_each_netdev_in_bond_rcu(dev, slave) {
3457 if (!netxen_config_checkdev(slave))
3458 continue;
3459 adapter = netdev_priv(slave);
3460 netxen_list_config_ip(adapter, ifa, ip_event);
3461 }
3462 rcu_read_unlock();
3463 } else {
3464 if (!netxen_config_checkdev(dev))
3465 goto done;
3466 adapter = netdev_priv(dev);
3467 netxen_list_config_ip(adapter, ifa, ip_event);
3468 }
3469 }
3470 done:
3471 return NOTIFY_DONE;
3472 }
3473
3474 static struct notifier_block netxen_netdev_cb = {
3475 .notifier_call = netxen_netdev_event,
3476 };
3477
3478 static struct notifier_block netxen_inetaddr_cb = {
3479 .notifier_call = netxen_inetaddr_event,
3480 };
3481 #else
3482 static void
3483 netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
3484 { }
3485 static void
3486 netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
3487 { }
3488 #endif
3489
3490 static const struct pci_error_handlers netxen_err_handler = {
3491 .error_detected = netxen_io_error_detected,
3492 .slot_reset = netxen_io_slot_reset,
3493 .resume = netxen_io_resume,
3494 };
3495
3496 static struct pci_driver netxen_driver = {
3497 .name = netxen_nic_driver_name,
3498 .id_table = netxen_pci_tbl,
3499 .probe = netxen_nic_probe,
3500 .remove = netxen_nic_remove,
3501 #ifdef CONFIG_PM
3502 .suspend = netxen_nic_suspend,
3503 .resume = netxen_nic_resume,
3504 #endif
3505 .shutdown = netxen_nic_shutdown,
3506 .err_handler = &netxen_err_handler
3507 };
3508
3509 static int __init netxen_init_module(void)
3510 {
3511 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
3512
3513 #ifdef CONFIG_INET
3514 register_netdevice_notifier(&netxen_netdev_cb);
3515 register_inetaddr_notifier(&netxen_inetaddr_cb);
3516 #endif
3517 return pci_register_driver(&netxen_driver);
3518 }
3519
3520 module_init(netxen_init_module);
3521
3522 static void __exit netxen_exit_module(void)
3523 {
3524 pci_unregister_driver(&netxen_driver);
3525
3526 #ifdef CONFIG_INET
3527 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
3528 unregister_netdevice_notifier(&netxen_netdev_cb);
3529 #endif
3530 }
3531
3532 module_exit(netxen_exit_module);
Linux with added FPC-III support