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net: get rid of SET_ETHTOOL_OPS
[deliverable/linux.git] / drivers / net / ethernet / qlogic / netxen / netxen_nic_main.c
1 /*
2 * Copyright (C) 2003 - 2009 NetXen, Inc.
3 * Copyright (C) 2009 - QLogic Corporation.
4 * All rights reserved.
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
18 *
19 * The full GNU General Public License is included in this distribution
20 * in the file called "COPYING".
21 *
22 */
23
24 #include <linux/slab.h>
25 #include <linux/vmalloc.h>
26 #include <linux/interrupt.h>
27 #include "netxen_nic_hw.h"
28
29 #include "netxen_nic.h"
30
31 #include <linux/dma-mapping.h>
32 #include <linux/if_vlan.h>
33 #include <net/ip.h>
34 #include <linux/ipv6.h>
35 #include <linux/inetdevice.h>
36 #include <linux/sysfs.h>
37 #include <linux/aer.h>
38
39 MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver");
40 MODULE_LICENSE("GPL");
41 MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
42 MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
43
44 char netxen_nic_driver_name[] = "netxen_nic";
45 static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
46 NETXEN_NIC_LINUX_VERSIONID;
47
48 static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
49
50 /* Default to restricted 1G auto-neg mode */
51 static int wol_port_mode = 5;
52
53 static int use_msi = 1;
54
55 static int use_msi_x = 1;
56
57 static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
58 module_param(auto_fw_reset, int, 0644);
59 MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
60
61 static int netxen_nic_probe(struct pci_dev *pdev,
62 const struct pci_device_id *ent);
63 static void netxen_nic_remove(struct pci_dev *pdev);
64 static int netxen_nic_open(struct net_device *netdev);
65 static int netxen_nic_close(struct net_device *netdev);
66 static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
67 struct net_device *);
68 static void netxen_tx_timeout(struct net_device *netdev);
69 static void netxen_tx_timeout_task(struct work_struct *work);
70 static void netxen_fw_poll_work(struct work_struct *work);
71 static void netxen_schedule_work(struct netxen_adapter *adapter,
72 work_func_t func, int delay);
73 static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
74 static int netxen_nic_poll(struct napi_struct *napi, int budget);
75 #ifdef CONFIG_NET_POLL_CONTROLLER
76 static void netxen_nic_poll_controller(struct net_device *netdev);
77 #endif
78
79 static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
80 static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
81 static void netxen_create_diag_entries(struct netxen_adapter *adapter);
82 static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
83 static int nx_dev_request_aer(struct netxen_adapter *adapter);
84 static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
85 static int netxen_can_start_firmware(struct netxen_adapter *adapter);
86
87 static irqreturn_t netxen_intr(int irq, void *data);
88 static irqreturn_t netxen_msi_intr(int irq, void *data);
89 static irqreturn_t netxen_msix_intr(int irq, void *data);
90
91 static void netxen_free_ip_list(struct netxen_adapter *, bool);
92 static void netxen_restore_indev_addr(struct net_device *dev, unsigned long);
93 static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *dev,
94 struct rtnl_link_stats64 *stats);
95 static int netxen_nic_set_mac(struct net_device *netdev, void *p);
96
97 /* PCI Device ID Table */
98 #define ENTRY(device) \
99 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
100 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
101
102 static DEFINE_PCI_DEVICE_TABLE(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 if (recv_ctx->sds_rings != NULL)
180 kfree(recv_ctx->sds_rings);
181
182 recv_ctx->sds_rings = NULL;
183 }
184
185 static int
186 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
187 {
188 int ring;
189 struct nx_host_sds_ring *sds_ring;
190 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
191
192 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
193 return -ENOMEM;
194
195 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
196 sds_ring = &recv_ctx->sds_rings[ring];
197 netif_napi_add(netdev, &sds_ring->napi,
198 netxen_nic_poll, NAPI_POLL_WEIGHT);
199 }
200
201 return 0;
202 }
203
204 static void
205 netxen_napi_del(struct netxen_adapter *adapter)
206 {
207 int ring;
208 struct nx_host_sds_ring *sds_ring;
209 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
210
211 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
212 sds_ring = &recv_ctx->sds_rings[ring];
213 netif_napi_del(&sds_ring->napi);
214 }
215
216 netxen_free_sds_rings(&adapter->recv_ctx);
217 }
218
219 static void
220 netxen_napi_enable(struct netxen_adapter *adapter)
221 {
222 int ring;
223 struct nx_host_sds_ring *sds_ring;
224 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
225
226 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
227 sds_ring = &recv_ctx->sds_rings[ring];
228 napi_enable(&sds_ring->napi);
229 netxen_nic_enable_int(sds_ring);
230 }
231 }
232
233 static void
234 netxen_napi_disable(struct netxen_adapter *adapter)
235 {
236 int ring;
237 struct nx_host_sds_ring *sds_ring;
238 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
239
240 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
241 sds_ring = &recv_ctx->sds_rings[ring];
242 netxen_nic_disable_int(sds_ring);
243 napi_synchronize(&sds_ring->napi);
244 napi_disable(&sds_ring->napi);
245 }
246 }
247
248 static int nx_set_dma_mask(struct netxen_adapter *adapter)
249 {
250 struct pci_dev *pdev = adapter->pdev;
251 uint64_t mask, cmask;
252
253 adapter->pci_using_dac = 0;
254
255 mask = DMA_BIT_MASK(32);
256 cmask = DMA_BIT_MASK(32);
257
258 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
259 #ifndef CONFIG_IA64
260 mask = DMA_BIT_MASK(35);
261 #endif
262 } else {
263 mask = DMA_BIT_MASK(39);
264 cmask = mask;
265 }
266
267 if (pci_set_dma_mask(pdev, mask) == 0 &&
268 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
269 adapter->pci_using_dac = 1;
270 return 0;
271 }
272
273 return -EIO;
274 }
275
276 /* Update addressable range if firmware supports it */
277 static int
278 nx_update_dma_mask(struct netxen_adapter *adapter)
279 {
280 int change, shift, err;
281 uint64_t mask, old_mask, old_cmask;
282 struct pci_dev *pdev = adapter->pdev;
283
284 change = 0;
285
286 shift = NXRD32(adapter, CRB_DMA_SHIFT);
287 if (shift > 32)
288 return 0;
289
290 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
291 change = 1;
292 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
293 change = 1;
294
295 if (change) {
296 old_mask = pdev->dma_mask;
297 old_cmask = pdev->dev.coherent_dma_mask;
298
299 mask = DMA_BIT_MASK(32+shift);
300
301 err = pci_set_dma_mask(pdev, mask);
302 if (err)
303 goto err_out;
304
305 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
306
307 err = pci_set_consistent_dma_mask(pdev, mask);
308 if (err)
309 goto err_out;
310 }
311 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
312 }
313
314 return 0;
315
316 err_out:
317 pci_set_dma_mask(pdev, old_mask);
318 pci_set_consistent_dma_mask(pdev, old_cmask);
319 return err;
320 }
321
322 static int
323 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
324 {
325 u32 val, timeout;
326
327 if (first_boot == 0x55555555) {
328 /* This is the first boot after power up */
329 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
330
331 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
332 return 0;
333
334 /* PCI bus master workaround */
335 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
336 if (!(first_boot & 0x4)) {
337 first_boot |= 0x4;
338 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
339 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
340 }
341
342 /* This is the first boot after power up */
343 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
344 if (first_boot != 0x80000f) {
345 /* clear the register for future unloads/loads */
346 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
347 return -EIO;
348 }
349
350 /* Start P2 boot loader */
351 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
352 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
353 timeout = 0;
354 do {
355 msleep(1);
356 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
357
358 if (++timeout > 5000)
359 return -EIO;
360
361 } while (val == NETXEN_BDINFO_MAGIC);
362 }
363 return 0;
364 }
365
366 static void netxen_set_port_mode(struct netxen_adapter *adapter)
367 {
368 u32 val, data;
369
370 val = adapter->ahw.board_type;
371 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
372 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
373 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
374 data = NETXEN_PORT_MODE_802_3_AP;
375 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
376 } else if (port_mode == NETXEN_PORT_MODE_XG) {
377 data = NETXEN_PORT_MODE_XG;
378 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
379 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
380 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
381 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
382 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
383 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
384 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
385 } else {
386 data = NETXEN_PORT_MODE_AUTO_NEG;
387 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
388 }
389
390 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
391 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
392 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
393 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
394 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
395 }
396 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
397 }
398 }
399
400 #define PCI_CAP_ID_GEN 0x10
401
402 static void netxen_pcie_strap_init(struct netxen_adapter *adapter)
403 {
404 u32 pdevfuncsave;
405 u32 c8c9value = 0;
406 u32 chicken = 0;
407 u32 control = 0;
408 int i, pos;
409 struct pci_dev *pdev;
410
411 pdev = adapter->pdev;
412
413 chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3));
414 /* clear chicken3.25:24 */
415 chicken &= 0xFCFFFFFF;
416 /*
417 * if gen1 and B0, set F1020 - if gen 2, do nothing
418 * if gen2 set to F1000
419 */
420 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN);
421 if (pos == 0xC0) {
422 pci_read_config_dword(pdev, pos + 0x10, &control);
423 if ((control & 0x000F0000) != 0x00020000) {
424 /* set chicken3.24 if gen1 */
425 chicken |= 0x01000000;
426 }
427 dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n");
428 c8c9value = 0xF1000;
429 } else {
430 /* set chicken3.24 if gen1 */
431 chicken |= 0x01000000;
432 dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n");
433 if (adapter->ahw.revision_id == NX_P3_B0)
434 c8c9value = 0xF1020;
435 else
436 c8c9value = 0;
437 }
438
439 NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken);
440
441 if (!c8c9value)
442 return;
443
444 pdevfuncsave = pdev->devfn;
445 if (pdevfuncsave & 0x07)
446 return;
447
448 for (i = 0; i < 8; i++) {
449 pci_read_config_dword(pdev, pos + 8, &control);
450 pci_read_config_dword(pdev, pos + 8, &control);
451 pci_write_config_dword(pdev, pos + 8, c8c9value);
452 pdev->devfn++;
453 }
454 pdev->devfn = pdevfuncsave;
455 }
456
457 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
458 {
459 u32 control;
460
461 if (pdev->msix_cap) {
462 pci_read_config_dword(pdev, pdev->msix_cap, &control);
463 if (enable)
464 control |= PCI_MSIX_FLAGS_ENABLE;
465 else
466 control = 0;
467 pci_write_config_dword(pdev, pdev->msix_cap, control);
468 }
469 }
470
471 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
472 {
473 int i;
474
475 for (i = 0; i < count; i++)
476 adapter->msix_entries[i].entry = i;
477 }
478
479 static int
480 netxen_read_mac_addr(struct netxen_adapter *adapter)
481 {
482 int i;
483 unsigned char *p;
484 u64 mac_addr;
485 struct net_device *netdev = adapter->netdev;
486 struct pci_dev *pdev = adapter->pdev;
487
488 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
489 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
490 return -EIO;
491 } else {
492 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
493 return -EIO;
494 }
495
496 p = (unsigned char *)&mac_addr;
497 for (i = 0; i < 6; i++)
498 netdev->dev_addr[i] = *(p + 5 - i);
499
500 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
501
502 /* set station address */
503
504 if (!is_valid_ether_addr(netdev->dev_addr))
505 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
506
507 return 0;
508 }
509
510 static int netxen_nic_set_mac(struct net_device *netdev, void *p)
511 {
512 struct netxen_adapter *adapter = netdev_priv(netdev);
513 struct sockaddr *addr = p;
514
515 if (!is_valid_ether_addr(addr->sa_data))
516 return -EADDRNOTAVAIL;
517
518 if (netif_running(netdev)) {
519 netif_device_detach(netdev);
520 netxen_napi_disable(adapter);
521 }
522
523 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
524 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
525 adapter->macaddr_set(adapter, addr->sa_data);
526
527 if (netif_running(netdev)) {
528 netif_device_attach(netdev);
529 netxen_napi_enable(adapter);
530 }
531 return 0;
532 }
533
534 static void netxen_set_multicast_list(struct net_device *dev)
535 {
536 struct netxen_adapter *adapter = netdev_priv(dev);
537
538 adapter->set_multi(dev);
539 }
540
541 static netdev_features_t netxen_fix_features(struct net_device *dev,
542 netdev_features_t features)
543 {
544 if (!(features & NETIF_F_RXCSUM)) {
545 netdev_info(dev, "disabling LRO as RXCSUM is off\n");
546
547 features &= ~NETIF_F_LRO;
548 }
549
550 return features;
551 }
552
553 static int netxen_set_features(struct net_device *dev,
554 netdev_features_t features)
555 {
556 struct netxen_adapter *adapter = netdev_priv(dev);
557 int hw_lro;
558
559 if (!((dev->features ^ features) & NETIF_F_LRO))
560 return 0;
561
562 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED
563 : NETXEN_NIC_LRO_DISABLED;
564
565 if (netxen_config_hw_lro(adapter, hw_lro))
566 return -EIO;
567
568 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter))
569 return -EIO;
570
571 return 0;
572 }
573
574 static const struct net_device_ops netxen_netdev_ops = {
575 .ndo_open = netxen_nic_open,
576 .ndo_stop = netxen_nic_close,
577 .ndo_start_xmit = netxen_nic_xmit_frame,
578 .ndo_get_stats64 = netxen_nic_get_stats,
579 .ndo_validate_addr = eth_validate_addr,
580 .ndo_set_rx_mode = netxen_set_multicast_list,
581 .ndo_set_mac_address = netxen_nic_set_mac,
582 .ndo_change_mtu = netxen_nic_change_mtu,
583 .ndo_tx_timeout = netxen_tx_timeout,
584 .ndo_fix_features = netxen_fix_features,
585 .ndo_set_features = netxen_set_features,
586 #ifdef CONFIG_NET_POLL_CONTROLLER
587 .ndo_poll_controller = netxen_nic_poll_controller,
588 #endif
589 };
590
591 static inline bool netxen_function_zero(struct pci_dev *pdev)
592 {
593 return (PCI_FUNC(pdev->devfn) == 0) ? true : false;
594 }
595
596 static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter,
597 u32 mode)
598 {
599 NXWR32(adapter, NETXEN_INTR_MODE_REG, mode);
600 }
601
602 static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter)
603 {
604 return NXRD32(adapter, NETXEN_INTR_MODE_REG);
605 }
606
607 static void
608 netxen_initialize_interrupt_registers(struct netxen_adapter *adapter)
609 {
610 struct netxen_legacy_intr_set *legacy_intrp;
611 u32 tgt_status_reg, int_state_reg;
612
613 if (adapter->ahw.revision_id >= NX_P3_B0)
614 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
615 else
616 legacy_intrp = &legacy_intr[0];
617
618 tgt_status_reg = legacy_intrp->tgt_status_reg;
619 int_state_reg = ISR_INT_STATE_REG;
620
621 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
622 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg);
623 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
624 legacy_intrp->tgt_mask_reg);
625 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
626 legacy_intrp->pci_int_reg);
627 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
628
629 if (adapter->ahw.revision_id >= NX_P3_B1)
630 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
631 int_state_reg);
632 else
633 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
634 CRB_INT_VECTOR);
635 }
636
637 static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter,
638 int num_msix)
639 {
640 struct pci_dev *pdev = adapter->pdev;
641 u32 value;
642 int err;
643
644 if (adapter->msix_supported) {
645 netxen_init_msix_entries(adapter, num_msix);
646 err = pci_enable_msix_range(pdev, adapter->msix_entries,
647 num_msix, num_msix);
648 if (err > 0) {
649 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
650 netxen_set_msix_bit(pdev, 1);
651
652 if (adapter->rss_supported)
653 adapter->max_sds_rings = num_msix;
654
655 dev_info(&pdev->dev, "using msi-x interrupts\n");
656 return 0;
657 }
658 /* fall through for msi */
659 }
660
661 if (use_msi && !pci_enable_msi(pdev)) {
662 value = msi_tgt_status[adapter->ahw.pci_func];
663 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
664 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value);
665 adapter->msix_entries[0].vector = pdev->irq;
666 dev_info(&pdev->dev, "using msi interrupts\n");
667 return 0;
668 }
669
670 dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n");
671 return -EIO;
672 }
673
674 static int netxen_setup_intr(struct netxen_adapter *adapter)
675 {
676 struct pci_dev *pdev = adapter->pdev;
677 int num_msix;
678
679 if (adapter->rss_supported)
680 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
681 MSIX_ENTRIES_PER_ADAPTER : 2;
682 else
683 num_msix = 1;
684
685 adapter->max_sds_rings = 1;
686 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
687
688 netxen_initialize_interrupt_registers(adapter);
689 netxen_set_msix_bit(pdev, 0);
690
691 if (netxen_function_zero(pdev)) {
692 if (!netxen_setup_msi_interrupts(adapter, num_msix))
693 netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE);
694 else
695 netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE);
696 } else {
697 if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE &&
698 netxen_setup_msi_interrupts(adapter, num_msix)) {
699 dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n");
700 return -EIO;
701 }
702 }
703
704 if (!NETXEN_IS_MSI_FAMILY(adapter)) {
705 adapter->msix_entries[0].vector = pdev->irq;
706 dev_info(&pdev->dev, "using legacy interrupts\n");
707 }
708 return 0;
709 }
710
711 static void
712 netxen_teardown_intr(struct netxen_adapter *adapter)
713 {
714 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
715 pci_disable_msix(adapter->pdev);
716 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
717 pci_disable_msi(adapter->pdev);
718 }
719
720 static void
721 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
722 {
723 if (adapter->ahw.db_base != NULL)
724 iounmap(adapter->ahw.db_base);
725 if (adapter->ahw.pci_base0 != NULL)
726 iounmap(adapter->ahw.pci_base0);
727 if (adapter->ahw.pci_base1 != NULL)
728 iounmap(adapter->ahw.pci_base1);
729 if (adapter->ahw.pci_base2 != NULL)
730 iounmap(adapter->ahw.pci_base2);
731 }
732
733 static int
734 netxen_setup_pci_map(struct netxen_adapter *adapter)
735 {
736 void __iomem *db_ptr = NULL;
737
738 resource_size_t mem_base, db_base;
739 unsigned long mem_len, db_len = 0;
740
741 struct pci_dev *pdev = adapter->pdev;
742 int pci_func = adapter->ahw.pci_func;
743 struct netxen_hardware_context *ahw = &adapter->ahw;
744
745 int err = 0;
746
747 /*
748 * Set the CRB window to invalid. If any register in window 0 is
749 * accessed it should set the window to 0 and then reset it to 1.
750 */
751 adapter->ahw.crb_win = -1;
752 adapter->ahw.ocm_win = -1;
753
754 /* remap phys address */
755 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
756 mem_len = pci_resource_len(pdev, 0);
757
758 /* 128 Meg of memory */
759 if (mem_len == NETXEN_PCI_128MB_SIZE) {
760
761 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
762 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
763 SECOND_PAGE_GROUP_SIZE);
764 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
765 THIRD_PAGE_GROUP_SIZE);
766 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
767 ahw->pci_base2 == NULL) {
768 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
769 err = -EIO;
770 goto err_out;
771 }
772
773 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
774
775 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
776
777 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
778 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
779 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
780 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
781 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
782 err = -EIO;
783 goto err_out;
784 }
785
786 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
787
788 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
789 if (ahw->pci_base0 == NULL) {
790 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
791 return -EIO;
792 }
793 ahw->pci_len0 = mem_len;
794 } else {
795 return -EIO;
796 }
797
798 netxen_setup_hwops(adapter);
799
800 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
801
802 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
803 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
804 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
805
806 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
807 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
808 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
809 }
810
811 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
812 goto skip_doorbell;
813
814 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
815 db_len = pci_resource_len(pdev, 4);
816
817 if (db_len == 0) {
818 printk(KERN_ERR "%s: doorbell is disabled\n",
819 netxen_nic_driver_name);
820 err = -EIO;
821 goto err_out;
822 }
823
824 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
825 if (!db_ptr) {
826 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
827 netxen_nic_driver_name);
828 err = -EIO;
829 goto err_out;
830 }
831
832 skip_doorbell:
833 adapter->ahw.db_base = db_ptr;
834 adapter->ahw.db_len = db_len;
835 return 0;
836
837 err_out:
838 netxen_cleanup_pci_map(adapter);
839 return err;
840 }
841
842 static void
843 netxen_check_options(struct netxen_adapter *adapter)
844 {
845 u32 fw_major, fw_minor, fw_build, prev_fw_version;
846 char brd_name[NETXEN_MAX_SHORT_NAME];
847 char serial_num[32];
848 int i, offset, val, err;
849 __le32 *ptr32;
850 struct pci_dev *pdev = adapter->pdev;
851
852 adapter->driver_mismatch = 0;
853
854 ptr32 = (__le32 *)&serial_num;
855 offset = NX_FW_SERIAL_NUM_OFFSET;
856 for (i = 0; i < 8; i++) {
857 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
858 dev_err(&pdev->dev, "error reading board info\n");
859 adapter->driver_mismatch = 1;
860 return;
861 }
862 ptr32[i] = cpu_to_le32(val);
863 offset += sizeof(u32);
864 }
865
866 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
867 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
868 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
869 prev_fw_version = adapter->fw_version;
870 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
871
872 /* Get FW Mini Coredump template and store it */
873 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
874 if (adapter->mdump.md_template == NULL ||
875 adapter->fw_version > prev_fw_version) {
876 kfree(adapter->mdump.md_template);
877 adapter->mdump.md_template = NULL;
878 err = netxen_setup_minidump(adapter);
879 if (err)
880 dev_err(&adapter->pdev->dev,
881 "Failed to setup minidump rcode = %d\n", err);
882 }
883 }
884
885 if (adapter->portnum == 0) {
886 if (netxen_nic_get_brd_name_by_type(adapter->ahw.board_type,
887 brd_name))
888 strcpy(serial_num, "Unknown");
889
890 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
891 module_name(THIS_MODULE),
892 brd_name, serial_num, adapter->ahw.revision_id);
893 }
894
895 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
896 adapter->driver_mismatch = 1;
897 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
898 fw_major, fw_minor, fw_build);
899 return;
900 }
901
902 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
903 i = NXRD32(adapter, NETXEN_SRE_MISC);
904 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
905 }
906
907 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n",
908 NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build,
909 adapter->ahw.cut_through ? "cut-through" : "legacy");
910
911 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
912 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
913
914 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
915 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
916 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
917 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
918 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
919 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
920 }
921
922 adapter->msix_supported = 0;
923 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
924 adapter->msix_supported = !!use_msi_x;
925 adapter->rss_supported = !!use_msi_x;
926 } else {
927 u32 flashed_ver = 0;
928 netxen_rom_fast_read(adapter,
929 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
930 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
931
932 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
933 switch (adapter->ahw.board_type) {
934 case NETXEN_BRDTYPE_P2_SB31_10G:
935 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
936 adapter->msix_supported = !!use_msi_x;
937 adapter->rss_supported = !!use_msi_x;
938 break;
939 default:
940 break;
941 }
942 }
943 }
944
945 adapter->num_txd = MAX_CMD_DESCRIPTORS;
946
947 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
948 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
949 adapter->max_rds_rings = 3;
950 } else {
951 adapter->num_lro_rxd = 0;
952 adapter->max_rds_rings = 2;
953 }
954 }
955
956 static int
957 netxen_start_firmware(struct netxen_adapter *adapter)
958 {
959 int val, err, first_boot;
960 struct pci_dev *pdev = adapter->pdev;
961
962 /* required for NX2031 dummy dma */
963 err = nx_set_dma_mask(adapter);
964 if (err)
965 return err;
966
967 err = netxen_can_start_firmware(adapter);
968
969 if (err < 0)
970 return err;
971
972 if (!err)
973 goto wait_init;
974
975 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
976
977 err = netxen_check_hw_init(adapter, first_boot);
978 if (err) {
979 dev_err(&pdev->dev, "error in init HW init sequence\n");
980 return err;
981 }
982
983 netxen_request_firmware(adapter);
984
985 err = netxen_need_fw_reset(adapter);
986 if (err < 0)
987 goto err_out;
988 if (err == 0)
989 goto pcie_strap_init;
990
991 if (first_boot != 0x55555555) {
992 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
993 netxen_pinit_from_rom(adapter);
994 msleep(1);
995 }
996
997 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
998 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
999 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
1000
1001 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1002 netxen_set_port_mode(adapter);
1003
1004 err = netxen_load_firmware(adapter);
1005 if (err)
1006 goto err_out;
1007
1008 netxen_release_firmware(adapter);
1009
1010 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1011
1012 /* Initialize multicast addr pool owners */
1013 val = 0x7654;
1014 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
1015 val |= 0x0f000000;
1016 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
1017
1018 }
1019
1020 err = netxen_init_dummy_dma(adapter);
1021 if (err)
1022 goto err_out;
1023
1024 /*
1025 * Tell the hardware our version number.
1026 */
1027 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
1028 | ((_NETXEN_NIC_LINUX_MINOR << 8))
1029 | (_NETXEN_NIC_LINUX_SUBVERSION);
1030 NXWR32(adapter, CRB_DRIVER_VERSION, val);
1031
1032 pcie_strap_init:
1033 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1034 netxen_pcie_strap_init(adapter);
1035
1036 wait_init:
1037 /* Handshake with the card before we register the devices. */
1038 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
1039 if (err) {
1040 netxen_free_dummy_dma(adapter);
1041 goto err_out;
1042 }
1043
1044 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
1045
1046 nx_update_dma_mask(adapter);
1047
1048 netxen_check_options(adapter);
1049
1050 adapter->need_fw_reset = 0;
1051
1052 /* fall through and release firmware */
1053
1054 err_out:
1055 netxen_release_firmware(adapter);
1056 return err;
1057 }
1058
1059 static int
1060 netxen_nic_request_irq(struct netxen_adapter *adapter)
1061 {
1062 irq_handler_t handler;
1063 struct nx_host_sds_ring *sds_ring;
1064 int err, ring;
1065
1066 unsigned long flags = 0;
1067 struct net_device *netdev = adapter->netdev;
1068 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1069
1070 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
1071 handler = netxen_msix_intr;
1072 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
1073 handler = netxen_msi_intr;
1074 else {
1075 flags |= IRQF_SHARED;
1076 handler = netxen_intr;
1077 }
1078 adapter->irq = netdev->irq;
1079
1080 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1081 sds_ring = &recv_ctx->sds_rings[ring];
1082 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1083 err = request_irq(sds_ring->irq, handler,
1084 flags, sds_ring->name, sds_ring);
1085 if (err)
1086 return err;
1087 }
1088
1089 return 0;
1090 }
1091
1092 static void
1093 netxen_nic_free_irq(struct netxen_adapter *adapter)
1094 {
1095 int ring;
1096 struct nx_host_sds_ring *sds_ring;
1097
1098 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1099
1100 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1101 sds_ring = &recv_ctx->sds_rings[ring];
1102 free_irq(sds_ring->irq, sds_ring);
1103 }
1104 }
1105
1106 static void
1107 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
1108 {
1109 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
1110 adapter->coal.normal.data.rx_time_us =
1111 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
1112 adapter->coal.normal.data.rx_packets =
1113 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
1114 adapter->coal.normal.data.tx_time_us =
1115 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
1116 adapter->coal.normal.data.tx_packets =
1117 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
1118 }
1119
1120 /* with rtnl_lock */
1121 static int
1122 __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1123 {
1124 int err;
1125
1126 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1127 return -EIO;
1128
1129 err = adapter->init_port(adapter, adapter->physical_port);
1130 if (err) {
1131 printk(KERN_ERR "%s: Failed to initialize port %d\n",
1132 netxen_nic_driver_name, adapter->portnum);
1133 return err;
1134 }
1135 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1136 adapter->macaddr_set(adapter, adapter->mac_addr);
1137
1138 adapter->set_multi(netdev);
1139 adapter->set_mtu(adapter, netdev->mtu);
1140
1141 adapter->ahw.linkup = 0;
1142
1143 if (adapter->max_sds_rings > 1)
1144 netxen_config_rss(adapter, 1);
1145
1146 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1147 netxen_config_intr_coalesce(adapter);
1148
1149 if (netdev->features & NETIF_F_LRO)
1150 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
1151
1152 netxen_napi_enable(adapter);
1153
1154 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1155 netxen_linkevent_request(adapter, 1);
1156 else
1157 netxen_nic_set_link_parameters(adapter);
1158
1159 set_bit(__NX_DEV_UP, &adapter->state);
1160 return 0;
1161 }
1162
1163 /* Usage: During resume and firmware recovery module.*/
1164
1165 static inline int
1166 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1167 {
1168 int err = 0;
1169
1170 rtnl_lock();
1171 if (netif_running(netdev))
1172 err = __netxen_nic_up(adapter, netdev);
1173 rtnl_unlock();
1174
1175 return err;
1176 }
1177
1178 /* with rtnl_lock */
1179 static void
1180 __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1181 {
1182 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1183 return;
1184
1185 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1186 return;
1187
1188 smp_mb();
1189 spin_lock(&adapter->tx_clean_lock);
1190 netif_carrier_off(netdev);
1191 netif_tx_disable(netdev);
1192
1193 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1194 netxen_linkevent_request(adapter, 0);
1195
1196 if (adapter->stop_port)
1197 adapter->stop_port(adapter);
1198
1199 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1200 netxen_p3_free_mac_list(adapter);
1201
1202 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1203
1204 netxen_napi_disable(adapter);
1205
1206 netxen_release_tx_buffers(adapter);
1207 spin_unlock(&adapter->tx_clean_lock);
1208 }
1209
1210 /* Usage: During suspend and firmware recovery module */
1211
1212 static inline void
1213 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1214 {
1215 rtnl_lock();
1216 if (netif_running(netdev))
1217 __netxen_nic_down(adapter, netdev);
1218 rtnl_unlock();
1219
1220 }
1221
1222 static int
1223 netxen_nic_attach(struct netxen_adapter *adapter)
1224 {
1225 struct net_device *netdev = adapter->netdev;
1226 struct pci_dev *pdev = adapter->pdev;
1227 int err, ring;
1228 struct nx_host_rds_ring *rds_ring;
1229 struct nx_host_tx_ring *tx_ring;
1230 u32 capab2;
1231
1232 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1233 return 0;
1234
1235 err = netxen_init_firmware(adapter);
1236 if (err)
1237 return err;
1238
1239 adapter->flags &= ~NETXEN_FW_MSS_CAP;
1240 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) {
1241 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2);
1242 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1243 adapter->flags |= NETXEN_FW_MSS_CAP;
1244 }
1245
1246 err = netxen_napi_add(adapter, netdev);
1247 if (err)
1248 return err;
1249
1250 err = netxen_alloc_sw_resources(adapter);
1251 if (err) {
1252 printk(KERN_ERR "%s: Error in setting sw resources\n",
1253 netdev->name);
1254 return err;
1255 }
1256
1257 err = netxen_alloc_hw_resources(adapter);
1258 if (err) {
1259 printk(KERN_ERR "%s: Error in setting hw resources\n",
1260 netdev->name);
1261 goto err_out_free_sw;
1262 }
1263
1264 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1265 tx_ring = adapter->tx_ring;
1266 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1267 crb_cmd_producer[adapter->portnum]);
1268 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1269 crb_cmd_consumer[adapter->portnum]);
1270
1271 tx_ring->producer = 0;
1272 tx_ring->sw_consumer = 0;
1273
1274 netxen_nic_update_cmd_producer(adapter, tx_ring);
1275 netxen_nic_update_cmd_consumer(adapter, tx_ring);
1276 }
1277
1278 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1279 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1280 netxen_post_rx_buffers(adapter, ring, rds_ring);
1281 }
1282
1283 err = netxen_nic_request_irq(adapter);
1284 if (err) {
1285 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1286 netdev->name);
1287 goto err_out_free_rxbuf;
1288 }
1289
1290 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1291 netxen_nic_init_coalesce_defaults(adapter);
1292
1293 netxen_create_sysfs_entries(adapter);
1294
1295 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1296 return 0;
1297
1298 err_out_free_rxbuf:
1299 netxen_release_rx_buffers(adapter);
1300 netxen_free_hw_resources(adapter);
1301 err_out_free_sw:
1302 netxen_free_sw_resources(adapter);
1303 return err;
1304 }
1305
1306 static void
1307 netxen_nic_detach(struct netxen_adapter *adapter)
1308 {
1309 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1310 return;
1311
1312 netxen_remove_sysfs_entries(adapter);
1313
1314 netxen_free_hw_resources(adapter);
1315 netxen_release_rx_buffers(adapter);
1316 netxen_nic_free_irq(adapter);
1317 netxen_napi_del(adapter);
1318 netxen_free_sw_resources(adapter);
1319
1320 adapter->is_up = 0;
1321 }
1322
1323 int
1324 netxen_nic_reset_context(struct netxen_adapter *adapter)
1325 {
1326 int err = 0;
1327 struct net_device *netdev = adapter->netdev;
1328
1329 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1330 return -EBUSY;
1331
1332 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1333
1334 netif_device_detach(netdev);
1335
1336 if (netif_running(netdev))
1337 __netxen_nic_down(adapter, netdev);
1338
1339 netxen_nic_detach(adapter);
1340
1341 if (netif_running(netdev)) {
1342 err = netxen_nic_attach(adapter);
1343 if (!err)
1344 err = __netxen_nic_up(adapter, netdev);
1345
1346 if (err)
1347 goto done;
1348 }
1349
1350 netif_device_attach(netdev);
1351 }
1352
1353 done:
1354 clear_bit(__NX_RESETTING, &adapter->state);
1355 return err;
1356 }
1357
1358 static int
1359 netxen_setup_netdev(struct netxen_adapter *adapter,
1360 struct net_device *netdev)
1361 {
1362 int err = 0;
1363 struct pci_dev *pdev = adapter->pdev;
1364
1365 adapter->mc_enabled = 0;
1366 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1367 adapter->max_mc_count = 38;
1368 else
1369 adapter->max_mc_count = 16;
1370
1371 netdev->netdev_ops = &netxen_netdev_ops;
1372 netdev->watchdog_timeo = 5*HZ;
1373
1374 netxen_nic_change_mtu(netdev, netdev->mtu);
1375
1376 netdev->ethtool_ops = &netxen_nic_ethtool_ops;
1377
1378 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
1379 NETIF_F_RXCSUM;
1380
1381 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1382 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1383
1384 netdev->vlan_features |= netdev->hw_features;
1385
1386 if (adapter->pci_using_dac) {
1387 netdev->features |= NETIF_F_HIGHDMA;
1388 netdev->vlan_features |= NETIF_F_HIGHDMA;
1389 }
1390
1391 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1392 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
1393
1394 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1395 netdev->hw_features |= NETIF_F_LRO;
1396
1397 netdev->features |= netdev->hw_features;
1398
1399 netdev->irq = adapter->msix_entries[0].vector;
1400
1401 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1402
1403 if (netxen_read_mac_addr(adapter))
1404 dev_warn(&pdev->dev, "failed to read mac addr\n");
1405
1406 netif_carrier_off(netdev);
1407
1408 err = register_netdev(netdev);
1409 if (err) {
1410 dev_err(&pdev->dev, "failed to register net device\n");
1411 return err;
1412 }
1413
1414 return 0;
1415 }
1416
1417 #define NETXEN_ULA_ADAPTER_KEY (0xdaddad01)
1418 #define NETXEN_NON_ULA_ADAPTER_KEY (0xdaddad00)
1419
1420 static void netxen_read_ula_info(struct netxen_adapter *adapter)
1421 {
1422 u32 temp;
1423
1424 /* Print ULA info only once for an adapter */
1425 if (adapter->portnum != 0)
1426 return;
1427
1428 temp = NXRD32(adapter, NETXEN_ULA_KEY);
1429 switch (temp) {
1430 case NETXEN_ULA_ADAPTER_KEY:
1431 dev_info(&adapter->pdev->dev, "ULA adapter");
1432 break;
1433 case NETXEN_NON_ULA_ADAPTER_KEY:
1434 dev_info(&adapter->pdev->dev, "non ULA adapter");
1435 break;
1436 default:
1437 break;
1438 }
1439
1440 return;
1441 }
1442
1443 #ifdef CONFIG_PCIEAER
1444 static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1445 {
1446 struct pci_dev *pdev = adapter->pdev;
1447 struct pci_dev *root = pdev->bus->self;
1448 u32 aer_pos;
1449
1450 /* root bus? */
1451 if (!root)
1452 return;
1453
1454 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1455 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1456 return;
1457
1458 if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT)
1459 return;
1460
1461 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1462 if (!aer_pos)
1463 return;
1464
1465 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1466 }
1467 #endif
1468
1469 static int
1470 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1471 {
1472 struct net_device *netdev = NULL;
1473 struct netxen_adapter *adapter = NULL;
1474 int i = 0, err;
1475 int pci_func_id = PCI_FUNC(pdev->devfn);
1476 uint8_t revision_id;
1477 u32 val;
1478
1479 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1480 pr_warning("%s: chip revisions between 0x%x-0x%x "
1481 "will not be enabled.\n",
1482 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
1483 return -ENODEV;
1484 }
1485
1486 if ((err = pci_enable_device(pdev)))
1487 return err;
1488
1489 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1490 err = -ENODEV;
1491 goto err_out_disable_pdev;
1492 }
1493
1494 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1495 goto err_out_disable_pdev;
1496
1497 if (NX_IS_REVISION_P3(pdev->revision))
1498 pci_enable_pcie_error_reporting(pdev);
1499
1500 pci_set_master(pdev);
1501
1502 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1503 if(!netdev) {
1504 err = -ENOMEM;
1505 goto err_out_free_res;
1506 }
1507
1508 SET_NETDEV_DEV(netdev, &pdev->dev);
1509
1510 adapter = netdev_priv(netdev);
1511 adapter->netdev = netdev;
1512 adapter->pdev = pdev;
1513 adapter->ahw.pci_func = pci_func_id;
1514
1515 revision_id = pdev->revision;
1516 adapter->ahw.revision_id = revision_id;
1517
1518 rwlock_init(&adapter->ahw.crb_lock);
1519 spin_lock_init(&adapter->ahw.mem_lock);
1520
1521 spin_lock_init(&adapter->tx_clean_lock);
1522 INIT_LIST_HEAD(&adapter->mac_list);
1523 INIT_LIST_HEAD(&adapter->ip_list);
1524
1525 err = netxen_setup_pci_map(adapter);
1526 if (err)
1527 goto err_out_free_netdev;
1528
1529 /* This will be reset for mezz cards */
1530 adapter->portnum = pci_func_id;
1531
1532 err = netxen_nic_get_board_info(adapter);
1533 if (err) {
1534 dev_err(&pdev->dev, "Error getting board config info.\n");
1535 goto err_out_iounmap;
1536 }
1537
1538 #ifdef CONFIG_PCIEAER
1539 netxen_mask_aer_correctable(adapter);
1540 #endif
1541
1542 /* Mezz cards have PCI function 0,2,3 enabled */
1543 switch (adapter->ahw.board_type) {
1544 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1545 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1546 if (pci_func_id >= 2)
1547 adapter->portnum = pci_func_id - 2;
1548 break;
1549 default:
1550 break;
1551 }
1552
1553 err = netxen_check_flash_fw_compatibility(adapter);
1554 if (err)
1555 goto err_out_iounmap;
1556
1557 if (adapter->portnum == 0) {
1558 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1559 if (val != 0xffffffff && val != 0) {
1560 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1561 adapter->need_fw_reset = 1;
1562 }
1563 }
1564
1565 err = netxen_start_firmware(adapter);
1566 if (err)
1567 goto err_out_decr_ref;
1568
1569 /*
1570 * See if the firmware gave us a virtual-physical port mapping.
1571 */
1572 adapter->physical_port = adapter->portnum;
1573 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1574 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1575 if (i != 0x55555555)
1576 adapter->physical_port = i;
1577 }
1578
1579 netxen_nic_clear_stats(adapter);
1580
1581 err = netxen_setup_intr(adapter);
1582
1583 if (err) {
1584 dev_err(&adapter->pdev->dev,
1585 "Failed to setup interrupts, error = %d\n", err);
1586 goto err_out_disable_msi;
1587 }
1588
1589 netxen_read_ula_info(adapter);
1590
1591 err = netxen_setup_netdev(adapter, netdev);
1592 if (err)
1593 goto err_out_disable_msi;
1594
1595 pci_set_drvdata(pdev, adapter);
1596
1597 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1598
1599 switch (adapter->ahw.port_type) {
1600 case NETXEN_NIC_GBE:
1601 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1602 adapter->netdev->name);
1603 break;
1604 case NETXEN_NIC_XGBE:
1605 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1606 adapter->netdev->name);
1607 break;
1608 }
1609
1610 netxen_create_diag_entries(adapter);
1611
1612 return 0;
1613
1614 err_out_disable_msi:
1615 netxen_teardown_intr(adapter);
1616
1617 netxen_free_dummy_dma(adapter);
1618
1619 err_out_decr_ref:
1620 nx_decr_dev_ref_cnt(adapter);
1621
1622 err_out_iounmap:
1623 netxen_cleanup_pci_map(adapter);
1624
1625 err_out_free_netdev:
1626 free_netdev(netdev);
1627
1628 err_out_free_res:
1629 pci_release_regions(pdev);
1630
1631 err_out_disable_pdev:
1632 pci_disable_device(pdev);
1633 return err;
1634 }
1635
1636 static
1637 void netxen_cleanup_minidump(struct netxen_adapter *adapter)
1638 {
1639 kfree(adapter->mdump.md_template);
1640 adapter->mdump.md_template = NULL;
1641
1642 if (adapter->mdump.md_capture_buff) {
1643 vfree(adapter->mdump.md_capture_buff);
1644 adapter->mdump.md_capture_buff = NULL;
1645 }
1646 }
1647
1648 static void netxen_nic_remove(struct pci_dev *pdev)
1649 {
1650 struct netxen_adapter *adapter;
1651 struct net_device *netdev;
1652
1653 adapter = pci_get_drvdata(pdev);
1654 if (adapter == NULL)
1655 return;
1656
1657 netdev = adapter->netdev;
1658
1659 netxen_cancel_fw_work(adapter);
1660
1661 unregister_netdev(netdev);
1662
1663 cancel_work_sync(&adapter->tx_timeout_task);
1664
1665 netxen_free_ip_list(adapter, false);
1666 netxen_nic_detach(adapter);
1667
1668 nx_decr_dev_ref_cnt(adapter);
1669
1670 if (adapter->portnum == 0)
1671 netxen_free_dummy_dma(adapter);
1672
1673 clear_bit(__NX_RESETTING, &adapter->state);
1674
1675 netxen_teardown_intr(adapter);
1676 netxen_set_interrupt_mode(adapter, 0);
1677 netxen_remove_diag_entries(adapter);
1678
1679 netxen_cleanup_pci_map(adapter);
1680
1681 netxen_release_firmware(adapter);
1682
1683 if (NX_IS_REVISION_P3(pdev->revision)) {
1684 netxen_cleanup_minidump(adapter);
1685 pci_disable_pcie_error_reporting(pdev);
1686 }
1687
1688 pci_release_regions(pdev);
1689 pci_disable_device(pdev);
1690
1691 free_netdev(netdev);
1692 }
1693
1694 static void netxen_nic_detach_func(struct netxen_adapter *adapter)
1695 {
1696 struct net_device *netdev = adapter->netdev;
1697
1698 netif_device_detach(netdev);
1699
1700 netxen_cancel_fw_work(adapter);
1701
1702 if (netif_running(netdev))
1703 netxen_nic_down(adapter, netdev);
1704
1705 cancel_work_sync(&adapter->tx_timeout_task);
1706
1707 netxen_nic_detach(adapter);
1708
1709 if (adapter->portnum == 0)
1710 netxen_free_dummy_dma(adapter);
1711
1712 nx_decr_dev_ref_cnt(adapter);
1713
1714 clear_bit(__NX_RESETTING, &adapter->state);
1715 }
1716
1717 static int netxen_nic_attach_func(struct pci_dev *pdev)
1718 {
1719 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1720 struct net_device *netdev = adapter->netdev;
1721 int err;
1722
1723 err = pci_enable_device(pdev);
1724 if (err)
1725 return err;
1726
1727 pci_set_power_state(pdev, PCI_D0);
1728 pci_set_master(pdev);
1729 pci_restore_state(pdev);
1730
1731 adapter->ahw.crb_win = -1;
1732 adapter->ahw.ocm_win = -1;
1733
1734 err = netxen_start_firmware(adapter);
1735 if (err) {
1736 dev_err(&pdev->dev, "failed to start firmware\n");
1737 return err;
1738 }
1739
1740 if (netif_running(netdev)) {
1741 err = netxen_nic_attach(adapter);
1742 if (err)
1743 goto err_out;
1744
1745 err = netxen_nic_up(adapter, netdev);
1746 if (err)
1747 goto err_out_detach;
1748
1749 netxen_restore_indev_addr(netdev, NETDEV_UP);
1750 }
1751
1752 netif_device_attach(netdev);
1753 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1754 return 0;
1755
1756 err_out_detach:
1757 netxen_nic_detach(adapter);
1758 err_out:
1759 nx_decr_dev_ref_cnt(adapter);
1760 return err;
1761 }
1762
1763 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1764 pci_channel_state_t state)
1765 {
1766 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1767
1768 if (state == pci_channel_io_perm_failure)
1769 return PCI_ERS_RESULT_DISCONNECT;
1770
1771 if (nx_dev_request_aer(adapter))
1772 return PCI_ERS_RESULT_RECOVERED;
1773
1774 netxen_nic_detach_func(adapter);
1775
1776 pci_disable_device(pdev);
1777
1778 return PCI_ERS_RESULT_NEED_RESET;
1779 }
1780
1781 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1782 {
1783 int err = 0;
1784
1785 err = netxen_nic_attach_func(pdev);
1786
1787 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1788 }
1789
1790 static void netxen_io_resume(struct pci_dev *pdev)
1791 {
1792 pci_cleanup_aer_uncorrect_error_status(pdev);
1793 }
1794
1795 static void netxen_nic_shutdown(struct pci_dev *pdev)
1796 {
1797 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1798
1799 netxen_nic_detach_func(adapter);
1800
1801 if (pci_save_state(pdev))
1802 return;
1803
1804 if (netxen_nic_wol_supported(adapter)) {
1805 pci_enable_wake(pdev, PCI_D3cold, 1);
1806 pci_enable_wake(pdev, PCI_D3hot, 1);
1807 }
1808
1809 pci_disable_device(pdev);
1810 }
1811
1812 #ifdef CONFIG_PM
1813 static int
1814 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1815 {
1816 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1817 int retval;
1818
1819 netxen_nic_detach_func(adapter);
1820
1821 retval = pci_save_state(pdev);
1822 if (retval)
1823 return retval;
1824
1825 if (netxen_nic_wol_supported(adapter)) {
1826 pci_enable_wake(pdev, PCI_D3cold, 1);
1827 pci_enable_wake(pdev, PCI_D3hot, 1);
1828 }
1829
1830 pci_disable_device(pdev);
1831 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1832
1833 return 0;
1834 }
1835
1836 static int
1837 netxen_nic_resume(struct pci_dev *pdev)
1838 {
1839 return netxen_nic_attach_func(pdev);
1840 }
1841 #endif
1842
1843 static int netxen_nic_open(struct net_device *netdev)
1844 {
1845 struct netxen_adapter *adapter = netdev_priv(netdev);
1846 int err = 0;
1847
1848 if (adapter->driver_mismatch)
1849 return -EIO;
1850
1851 err = netxen_nic_attach(adapter);
1852 if (err)
1853 return err;
1854
1855 err = __netxen_nic_up(adapter, netdev);
1856 if (err)
1857 goto err_out;
1858
1859 netif_start_queue(netdev);
1860
1861 return 0;
1862
1863 err_out:
1864 netxen_nic_detach(adapter);
1865 return err;
1866 }
1867
1868 /*
1869 * netxen_nic_close - Disables a network interface entry point
1870 */
1871 static int netxen_nic_close(struct net_device *netdev)
1872 {
1873 struct netxen_adapter *adapter = netdev_priv(netdev);
1874
1875 __netxen_nic_down(adapter, netdev);
1876 return 0;
1877 }
1878
1879 static void
1880 netxen_tso_check(struct net_device *netdev,
1881 struct nx_host_tx_ring *tx_ring,
1882 struct cmd_desc_type0 *first_desc,
1883 struct sk_buff *skb)
1884 {
1885 u8 opcode = TX_ETHER_PKT;
1886 __be16 protocol = skb->protocol;
1887 u16 flags = 0, vid = 0;
1888 u32 producer;
1889 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1890 struct cmd_desc_type0 *hwdesc;
1891 struct vlan_ethhdr *vh;
1892
1893 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1894
1895 vh = (struct vlan_ethhdr *)skb->data;
1896 protocol = vh->h_vlan_encapsulated_proto;
1897 flags = FLAGS_VLAN_TAGGED;
1898
1899 } else if (vlan_tx_tag_present(skb)) {
1900 flags = FLAGS_VLAN_OOB;
1901 vid = vlan_tx_tag_get(skb);
1902 netxen_set_tx_vlan_tci(first_desc, vid);
1903 vlan_oob = 1;
1904 }
1905
1906 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1907 skb_shinfo(skb)->gso_size > 0) {
1908
1909 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1910
1911 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1912 first_desc->total_hdr_length = hdr_len;
1913 if (vlan_oob) {
1914 first_desc->total_hdr_length += VLAN_HLEN;
1915 first_desc->tcp_hdr_offset = VLAN_HLEN;
1916 first_desc->ip_hdr_offset = VLAN_HLEN;
1917 /* Only in case of TSO on vlan device */
1918 flags |= FLAGS_VLAN_TAGGED;
1919 }
1920
1921 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1922 TX_TCP_LSO6 : TX_TCP_LSO;
1923 tso = 1;
1924
1925 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1926 u8 l4proto;
1927
1928 if (protocol == cpu_to_be16(ETH_P_IP)) {
1929 l4proto = ip_hdr(skb)->protocol;
1930
1931 if (l4proto == IPPROTO_TCP)
1932 opcode = TX_TCP_PKT;
1933 else if(l4proto == IPPROTO_UDP)
1934 opcode = TX_UDP_PKT;
1935 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1936 l4proto = ipv6_hdr(skb)->nexthdr;
1937
1938 if (l4proto == IPPROTO_TCP)
1939 opcode = TX_TCPV6_PKT;
1940 else if(l4proto == IPPROTO_UDP)
1941 opcode = TX_UDPV6_PKT;
1942 }
1943 }
1944
1945 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1946 first_desc->ip_hdr_offset += skb_network_offset(skb);
1947 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1948
1949 if (!tso)
1950 return;
1951
1952 /* For LSO, we need to copy the MAC/IP/TCP headers into
1953 * the descriptor ring
1954 */
1955 producer = tx_ring->producer;
1956 copied = 0;
1957 offset = 2;
1958
1959 if (vlan_oob) {
1960 /* Create a TSO vlan header template for firmware */
1961
1962 hwdesc = &tx_ring->desc_head[producer];
1963 tx_ring->cmd_buf_arr[producer].skb = NULL;
1964
1965 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1966 hdr_len + VLAN_HLEN);
1967
1968 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1969 skb_copy_from_linear_data(skb, vh, 12);
1970 vh->h_vlan_proto = htons(ETH_P_8021Q);
1971 vh->h_vlan_TCI = htons(vid);
1972 skb_copy_from_linear_data_offset(skb, 12,
1973 (char *)vh + 16, copy_len - 16);
1974
1975 copied = copy_len - VLAN_HLEN;
1976 offset = 0;
1977
1978 producer = get_next_index(producer, tx_ring->num_desc);
1979 }
1980
1981 while (copied < hdr_len) {
1982
1983 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1984 (hdr_len - copied));
1985
1986 hwdesc = &tx_ring->desc_head[producer];
1987 tx_ring->cmd_buf_arr[producer].skb = NULL;
1988
1989 skb_copy_from_linear_data_offset(skb, copied,
1990 (char *)hwdesc + offset, copy_len);
1991
1992 copied += copy_len;
1993 offset = 0;
1994
1995 producer = get_next_index(producer, tx_ring->num_desc);
1996 }
1997
1998 tx_ring->producer = producer;
1999 barrier();
2000 }
2001
2002 static int
2003 netxen_map_tx_skb(struct pci_dev *pdev,
2004 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
2005 {
2006 struct netxen_skb_frag *nf;
2007 struct skb_frag_struct *frag;
2008 int i, nr_frags;
2009 dma_addr_t map;
2010
2011 nr_frags = skb_shinfo(skb)->nr_frags;
2012 nf = &pbuf->frag_array[0];
2013
2014 map = pci_map_single(pdev, skb->data,
2015 skb_headlen(skb), PCI_DMA_TODEVICE);
2016 if (pci_dma_mapping_error(pdev, map))
2017 goto out_err;
2018
2019 nf->dma = map;
2020 nf->length = skb_headlen(skb);
2021
2022 for (i = 0; i < nr_frags; i++) {
2023 frag = &skb_shinfo(skb)->frags[i];
2024 nf = &pbuf->frag_array[i+1];
2025
2026 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
2027 DMA_TO_DEVICE);
2028 if (dma_mapping_error(&pdev->dev, map))
2029 goto unwind;
2030
2031 nf->dma = map;
2032 nf->length = skb_frag_size(frag);
2033 }
2034
2035 return 0;
2036
2037 unwind:
2038 while (--i >= 0) {
2039 nf = &pbuf->frag_array[i+1];
2040 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2041 nf->dma = 0ULL;
2042 }
2043
2044 nf = &pbuf->frag_array[0];
2045 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2046 nf->dma = 0ULL;
2047
2048 out_err:
2049 return -ENOMEM;
2050 }
2051
2052 static inline void
2053 netxen_clear_cmddesc(u64 *desc)
2054 {
2055 desc[0] = 0ULL;
2056 desc[2] = 0ULL;
2057 }
2058
2059 static netdev_tx_t
2060 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2061 {
2062 struct netxen_adapter *adapter = netdev_priv(netdev);
2063 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
2064 struct netxen_cmd_buffer *pbuf;
2065 struct netxen_skb_frag *buffrag;
2066 struct cmd_desc_type0 *hwdesc, *first_desc;
2067 struct pci_dev *pdev;
2068 int i, k;
2069 int delta = 0;
2070 struct skb_frag_struct *frag;
2071
2072 u32 producer;
2073 int frag_count, no_of_desc;
2074 u32 num_txd = tx_ring->num_desc;
2075
2076 frag_count = skb_shinfo(skb)->nr_frags + 1;
2077
2078 /* 14 frags supported for normal packet and
2079 * 32 frags supported for TSO packet
2080 */
2081 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
2082
2083 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
2084 frag = &skb_shinfo(skb)->frags[i];
2085 delta += skb_frag_size(frag);
2086 }
2087
2088 if (!__pskb_pull_tail(skb, delta))
2089 goto drop_packet;
2090
2091 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2092 }
2093 /* 4 fragments per cmd des */
2094 no_of_desc = (frag_count + 3) >> 2;
2095
2096 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2097 netif_stop_queue(netdev);
2098 smp_mb();
2099 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
2100 netif_start_queue(netdev);
2101 else
2102 return NETDEV_TX_BUSY;
2103 }
2104
2105 producer = tx_ring->producer;
2106 pbuf = &tx_ring->cmd_buf_arr[producer];
2107
2108 pdev = adapter->pdev;
2109
2110 if (netxen_map_tx_skb(pdev, skb, pbuf))
2111 goto drop_packet;
2112
2113 pbuf->skb = skb;
2114 pbuf->frag_count = frag_count;
2115
2116 first_desc = hwdesc = &tx_ring->desc_head[producer];
2117 netxen_clear_cmddesc((u64 *)hwdesc);
2118
2119 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
2120 netxen_set_tx_port(first_desc, adapter->portnum);
2121
2122 for (i = 0; i < frag_count; i++) {
2123
2124 k = i % 4;
2125
2126 if ((k == 0) && (i > 0)) {
2127 /* move to next desc.*/
2128 producer = get_next_index(producer, num_txd);
2129 hwdesc = &tx_ring->desc_head[producer];
2130 netxen_clear_cmddesc((u64 *)hwdesc);
2131 tx_ring->cmd_buf_arr[producer].skb = NULL;
2132 }
2133
2134 buffrag = &pbuf->frag_array[i];
2135
2136 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2137 switch (k) {
2138 case 0:
2139 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2140 break;
2141 case 1:
2142 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2143 break;
2144 case 2:
2145 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2146 break;
2147 case 3:
2148 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2149 break;
2150 }
2151 }
2152
2153 tx_ring->producer = get_next_index(producer, num_txd);
2154
2155 netxen_tso_check(netdev, tx_ring, first_desc, skb);
2156
2157 adapter->stats.txbytes += skb->len;
2158 adapter->stats.xmitcalled++;
2159
2160 netxen_nic_update_cmd_producer(adapter, tx_ring);
2161
2162 return NETDEV_TX_OK;
2163
2164 drop_packet:
2165 adapter->stats.txdropped++;
2166 dev_kfree_skb_any(skb);
2167 return NETDEV_TX_OK;
2168 }
2169
2170 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
2171 {
2172 struct net_device *netdev = adapter->netdev;
2173 uint32_t temp, temp_state, temp_val;
2174 int rv = 0;
2175
2176 temp = NXRD32(adapter, CRB_TEMP_STATE);
2177
2178 temp_state = nx_get_temp_state(temp);
2179 temp_val = nx_get_temp_val(temp);
2180
2181 if (temp_state == NX_TEMP_PANIC) {
2182 printk(KERN_ALERT
2183 "%s: Device temperature %d degrees C exceeds"
2184 " maximum allowed. Hardware has been shut down.\n",
2185 netdev->name, temp_val);
2186 rv = 1;
2187 } else if (temp_state == NX_TEMP_WARN) {
2188 if (adapter->temp == NX_TEMP_NORMAL) {
2189 printk(KERN_ALERT
2190 "%s: Device temperature %d degrees C "
2191 "exceeds operating range."
2192 " Immediate action needed.\n",
2193 netdev->name, temp_val);
2194 }
2195 } else {
2196 if (adapter->temp == NX_TEMP_WARN) {
2197 printk(KERN_INFO
2198 "%s: Device temperature is now %d degrees C"
2199 " in normal range.\n", netdev->name,
2200 temp_val);
2201 }
2202 }
2203 adapter->temp = temp_state;
2204 return rv;
2205 }
2206
2207 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
2208 {
2209 struct net_device *netdev = adapter->netdev;
2210
2211 if (adapter->ahw.linkup && !linkup) {
2212 printk(KERN_INFO "%s: %s NIC Link is down\n",
2213 netxen_nic_driver_name, netdev->name);
2214 adapter->ahw.linkup = 0;
2215 if (netif_running(netdev)) {
2216 netif_carrier_off(netdev);
2217 netif_stop_queue(netdev);
2218 }
2219 adapter->link_changed = !adapter->has_link_events;
2220 } else if (!adapter->ahw.linkup && linkup) {
2221 printk(KERN_INFO "%s: %s NIC Link is up\n",
2222 netxen_nic_driver_name, netdev->name);
2223 adapter->ahw.linkup = 1;
2224 if (netif_running(netdev)) {
2225 netif_carrier_on(netdev);
2226 netif_wake_queue(netdev);
2227 }
2228 adapter->link_changed = !adapter->has_link_events;
2229 }
2230 }
2231
2232 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2233 {
2234 u32 val, port, linkup;
2235
2236 port = adapter->physical_port;
2237
2238 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2239 val = NXRD32(adapter, CRB_XG_STATE_P3);
2240 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2241 linkup = (val == XG_LINK_UP_P3);
2242 } else {
2243 val = NXRD32(adapter, CRB_XG_STATE);
2244 val = (val >> port*8) & 0xff;
2245 linkup = (val == XG_LINK_UP);
2246 }
2247
2248 netxen_advert_link_change(adapter, linkup);
2249 }
2250
2251 static void netxen_tx_timeout(struct net_device *netdev)
2252 {
2253 struct netxen_adapter *adapter = netdev_priv(netdev);
2254
2255 if (test_bit(__NX_RESETTING, &adapter->state))
2256 return;
2257
2258 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2259 schedule_work(&adapter->tx_timeout_task);
2260 }
2261
2262 static void netxen_tx_timeout_task(struct work_struct *work)
2263 {
2264 struct netxen_adapter *adapter =
2265 container_of(work, struct netxen_adapter, tx_timeout_task);
2266
2267 if (!netif_running(adapter->netdev))
2268 return;
2269
2270 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
2271 return;
2272
2273 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2274 goto request_reset;
2275
2276 rtnl_lock();
2277 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2278 /* try to scrub interrupt */
2279 netxen_napi_disable(adapter);
2280
2281 netxen_napi_enable(adapter);
2282
2283 netif_wake_queue(adapter->netdev);
2284
2285 clear_bit(__NX_RESETTING, &adapter->state);
2286 } else {
2287 clear_bit(__NX_RESETTING, &adapter->state);
2288 if (netxen_nic_reset_context(adapter)) {
2289 rtnl_unlock();
2290 goto request_reset;
2291 }
2292 }
2293 adapter->netdev->trans_start = jiffies;
2294 rtnl_unlock();
2295 return;
2296
2297 request_reset:
2298 adapter->need_fw_reset = 1;
2299 clear_bit(__NX_RESETTING, &adapter->state);
2300 }
2301
2302 static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev,
2303 struct rtnl_link_stats64 *stats)
2304 {
2305 struct netxen_adapter *adapter = netdev_priv(netdev);
2306
2307 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2308 stats->tx_packets = adapter->stats.xmitfinished;
2309 stats->rx_bytes = adapter->stats.rxbytes;
2310 stats->tx_bytes = adapter->stats.txbytes;
2311 stats->rx_dropped = adapter->stats.rxdropped;
2312 stats->tx_dropped = adapter->stats.txdropped;
2313
2314 return stats;
2315 }
2316
2317 static irqreturn_t netxen_intr(int irq, void *data)
2318 {
2319 struct nx_host_sds_ring *sds_ring = data;
2320 struct netxen_adapter *adapter = sds_ring->adapter;
2321 u32 status = 0;
2322
2323 status = readl(adapter->isr_int_vec);
2324
2325 if (!(status & adapter->int_vec_bit))
2326 return IRQ_NONE;
2327
2328 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2329 /* check interrupt state machine, to be sure */
2330 status = readl(adapter->crb_int_state_reg);
2331 if (!ISR_LEGACY_INT_TRIGGERED(status))
2332 return IRQ_NONE;
2333
2334 } else {
2335 unsigned long our_int = 0;
2336
2337 our_int = readl(adapter->crb_int_state_reg);
2338
2339 /* not our interrupt */
2340 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2341 return IRQ_NONE;
2342
2343 /* claim interrupt */
2344 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2345
2346 /* clear interrupt */
2347 netxen_nic_disable_int(sds_ring);
2348 }
2349
2350 writel(0xffffffff, adapter->tgt_status_reg);
2351 /* read twice to ensure write is flushed */
2352 readl(adapter->isr_int_vec);
2353 readl(adapter->isr_int_vec);
2354
2355 napi_schedule(&sds_ring->napi);
2356
2357 return IRQ_HANDLED;
2358 }
2359
2360 static irqreturn_t netxen_msi_intr(int irq, void *data)
2361 {
2362 struct nx_host_sds_ring *sds_ring = data;
2363 struct netxen_adapter *adapter = sds_ring->adapter;
2364
2365 /* clear interrupt */
2366 writel(0xffffffff, adapter->tgt_status_reg);
2367
2368 napi_schedule(&sds_ring->napi);
2369 return IRQ_HANDLED;
2370 }
2371
2372 static irqreturn_t netxen_msix_intr(int irq, void *data)
2373 {
2374 struct nx_host_sds_ring *sds_ring = data;
2375
2376 napi_schedule(&sds_ring->napi);
2377 return IRQ_HANDLED;
2378 }
2379
2380 static int netxen_nic_poll(struct napi_struct *napi, int budget)
2381 {
2382 struct nx_host_sds_ring *sds_ring =
2383 container_of(napi, struct nx_host_sds_ring, napi);
2384
2385 struct netxen_adapter *adapter = sds_ring->adapter;
2386
2387 int tx_complete;
2388 int work_done;
2389
2390 tx_complete = netxen_process_cmd_ring(adapter);
2391
2392 work_done = netxen_process_rcv_ring(sds_ring, budget);
2393
2394 if ((work_done < budget) && tx_complete) {
2395 napi_complete(&sds_ring->napi);
2396 if (test_bit(__NX_DEV_UP, &adapter->state))
2397 netxen_nic_enable_int(sds_ring);
2398 }
2399
2400 return work_done;
2401 }
2402
2403 #ifdef CONFIG_NET_POLL_CONTROLLER
2404 static void netxen_nic_poll_controller(struct net_device *netdev)
2405 {
2406 int ring;
2407 struct nx_host_sds_ring *sds_ring;
2408 struct netxen_adapter *adapter = netdev_priv(netdev);
2409 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2410
2411 disable_irq(adapter->irq);
2412 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2413 sds_ring = &recv_ctx->sds_rings[ring];
2414 netxen_intr(adapter->irq, sds_ring);
2415 }
2416 enable_irq(adapter->irq);
2417 }
2418 #endif
2419
2420 static int
2421 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2422 {
2423 int count;
2424 if (netxen_api_lock(adapter))
2425 return -EIO;
2426
2427 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2428
2429 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2430
2431 netxen_api_unlock(adapter);
2432 return count;
2433 }
2434
2435 static int
2436 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2437 {
2438 int count, state;
2439 if (netxen_api_lock(adapter))
2440 return -EIO;
2441
2442 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2443 WARN_ON(count == 0);
2444
2445 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2446 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2447
2448 if (count == 0 && state != NX_DEV_FAILED)
2449 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2450
2451 netxen_api_unlock(adapter);
2452 return count;
2453 }
2454
2455 static int
2456 nx_dev_request_aer(struct netxen_adapter *adapter)
2457 {
2458 u32 state;
2459 int ret = -EINVAL;
2460
2461 if (netxen_api_lock(adapter))
2462 return ret;
2463
2464 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2465
2466 if (state == NX_DEV_NEED_AER)
2467 ret = 0;
2468 else if (state == NX_DEV_READY) {
2469 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2470 ret = 0;
2471 }
2472
2473 netxen_api_unlock(adapter);
2474 return ret;
2475 }
2476
2477 int
2478 nx_dev_request_reset(struct netxen_adapter *adapter)
2479 {
2480 u32 state;
2481 int ret = -EINVAL;
2482
2483 if (netxen_api_lock(adapter))
2484 return ret;
2485
2486 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2487
2488 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED)
2489 ret = 0;
2490 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
2491 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2492 adapter->flags |= NETXEN_FW_RESET_OWNER;
2493 ret = 0;
2494 }
2495
2496 netxen_api_unlock(adapter);
2497
2498 return ret;
2499 }
2500
2501 static int
2502 netxen_can_start_firmware(struct netxen_adapter *adapter)
2503 {
2504 int count;
2505 int can_start = 0;
2506
2507 if (netxen_api_lock(adapter)) {
2508 nx_incr_dev_ref_cnt(adapter);
2509 return -1;
2510 }
2511
2512 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2513
2514 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2515 count = 0;
2516
2517 if (count == 0) {
2518 can_start = 1;
2519 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2520 }
2521
2522 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2523
2524 netxen_api_unlock(adapter);
2525
2526 return can_start;
2527 }
2528
2529 static void
2530 netxen_schedule_work(struct netxen_adapter *adapter,
2531 work_func_t func, int delay)
2532 {
2533 INIT_DELAYED_WORK(&adapter->fw_work, func);
2534 schedule_delayed_work(&adapter->fw_work, delay);
2535 }
2536
2537 static void
2538 netxen_cancel_fw_work(struct netxen_adapter *adapter)
2539 {
2540 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2541 msleep(10);
2542
2543 cancel_delayed_work_sync(&adapter->fw_work);
2544 }
2545
2546 static void
2547 netxen_attach_work(struct work_struct *work)
2548 {
2549 struct netxen_adapter *adapter = container_of(work,
2550 struct netxen_adapter, fw_work.work);
2551 struct net_device *netdev = adapter->netdev;
2552 int err = 0;
2553
2554 if (netif_running(netdev)) {
2555 err = netxen_nic_attach(adapter);
2556 if (err)
2557 goto done;
2558
2559 err = netxen_nic_up(adapter, netdev);
2560 if (err) {
2561 netxen_nic_detach(adapter);
2562 goto done;
2563 }
2564
2565 netxen_restore_indev_addr(netdev, NETDEV_UP);
2566 }
2567
2568 netif_device_attach(netdev);
2569
2570 done:
2571 adapter->fw_fail_cnt = 0;
2572 clear_bit(__NX_RESETTING, &adapter->state);
2573 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2574 }
2575
2576 static void
2577 netxen_fwinit_work(struct work_struct *work)
2578 {
2579 struct netxen_adapter *adapter = container_of(work,
2580 struct netxen_adapter, fw_work.work);
2581 int dev_state;
2582 int count;
2583 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2584 if (adapter->flags & NETXEN_FW_RESET_OWNER) {
2585 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2586 WARN_ON(count == 0);
2587 if (count == 1) {
2588 if (adapter->mdump.md_enabled) {
2589 rtnl_lock();
2590 netxen_dump_fw(adapter);
2591 rtnl_unlock();
2592 }
2593 adapter->flags &= ~NETXEN_FW_RESET_OWNER;
2594 if (netxen_api_lock(adapter)) {
2595 clear_bit(__NX_RESETTING, &adapter->state);
2596 NXWR32(adapter, NX_CRB_DEV_STATE,
2597 NX_DEV_FAILED);
2598 return;
2599 }
2600 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2601 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2602 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2603 dev_state = NX_DEV_COLD;
2604 netxen_api_unlock(adapter);
2605 }
2606 }
2607
2608 switch (dev_state) {
2609 case NX_DEV_COLD:
2610 case NX_DEV_READY:
2611 if (!netxen_start_firmware(adapter)) {
2612 netxen_schedule_work(adapter, netxen_attach_work, 0);
2613 return;
2614 }
2615 break;
2616
2617 case NX_DEV_NEED_RESET:
2618 case NX_DEV_INITALIZING:
2619 netxen_schedule_work(adapter,
2620 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2621 return;
2622
2623 case NX_DEV_FAILED:
2624 default:
2625 nx_incr_dev_ref_cnt(adapter);
2626 break;
2627 }
2628
2629 if (netxen_api_lock(adapter)) {
2630 clear_bit(__NX_RESETTING, &adapter->state);
2631 return;
2632 }
2633 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED);
2634 netxen_api_unlock(adapter);
2635 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n",
2636 adapter->netdev->name);
2637
2638 clear_bit(__NX_RESETTING, &adapter->state);
2639 }
2640
2641 static void
2642 netxen_detach_work(struct work_struct *work)
2643 {
2644 struct netxen_adapter *adapter = container_of(work,
2645 struct netxen_adapter, fw_work.work);
2646 struct net_device *netdev = adapter->netdev;
2647 int ref_cnt = 0, delay;
2648 u32 status;
2649
2650 netif_device_detach(netdev);
2651
2652 netxen_nic_down(adapter, netdev);
2653
2654 rtnl_lock();
2655 netxen_nic_detach(adapter);
2656 rtnl_unlock();
2657
2658 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2659
2660 if (status & NX_RCODE_FATAL_ERROR)
2661 goto err_ret;
2662
2663 if (adapter->temp == NX_TEMP_PANIC)
2664 goto err_ret;
2665
2666 if (!(adapter->flags & NETXEN_FW_RESET_OWNER))
2667 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2668
2669 if (ref_cnt == -EIO)
2670 goto err_ret;
2671
2672 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2673
2674 adapter->fw_wait_cnt = 0;
2675 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2676
2677 return;
2678
2679 err_ret:
2680 clear_bit(__NX_RESETTING, &adapter->state);
2681 }
2682
2683 static int
2684 netxen_check_health(struct netxen_adapter *adapter)
2685 {
2686 u32 state, heartbit;
2687 u32 peg_status;
2688 struct net_device *netdev = adapter->netdev;
2689
2690 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2691 if (state == NX_DEV_NEED_AER)
2692 return 0;
2693
2694 if (netxen_nic_check_temp(adapter))
2695 goto detach;
2696
2697 if (adapter->need_fw_reset) {
2698 if (nx_dev_request_reset(adapter))
2699 return 0;
2700 goto detach;
2701 }
2702
2703 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2704 * 1. Tx timeout 2. Fw hang
2705 * Send request to destroy context in case of tx timeout only
2706 * and doesn't required in case of Fw hang
2707 */
2708 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) {
2709 adapter->need_fw_reset = 1;
2710 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2711 goto detach;
2712 }
2713
2714 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2715 return 0;
2716
2717 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2718 if (heartbit != adapter->heartbit) {
2719 adapter->heartbit = heartbit;
2720 adapter->fw_fail_cnt = 0;
2721 if (adapter->need_fw_reset)
2722 goto detach;
2723 return 0;
2724 }
2725
2726 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2727 return 0;
2728
2729 if (nx_dev_request_reset(adapter))
2730 return 0;
2731
2732 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2733
2734 dev_err(&netdev->dev, "firmware hang detected\n");
2735 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2736 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2737 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2738 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2739 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2740 "PEG_NET_4_PC: 0x%x\n",
2741 peg_status,
2742 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2),
2743 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c),
2744 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c),
2745 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c),
2746 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c),
2747 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c));
2748 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67)
2749 dev_err(&adapter->pdev->dev,
2750 "Firmware aborted with error code 0x00006700. "
2751 "Device is being reset.\n");
2752 detach:
2753 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2754 !test_and_set_bit(__NX_RESETTING, &adapter->state))
2755 netxen_schedule_work(adapter, netxen_detach_work, 0);
2756 return 1;
2757 }
2758
2759 static void
2760 netxen_fw_poll_work(struct work_struct *work)
2761 {
2762 struct netxen_adapter *adapter = container_of(work,
2763 struct netxen_adapter, fw_work.work);
2764
2765 if (test_bit(__NX_RESETTING, &adapter->state))
2766 goto reschedule;
2767
2768 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2769 if (!adapter->has_link_events) {
2770
2771 netxen_nic_handle_phy_intr(adapter);
2772
2773 if (adapter->link_changed)
2774 netxen_nic_set_link_parameters(adapter);
2775 }
2776 }
2777
2778 if (netxen_check_health(adapter))
2779 return;
2780
2781 reschedule:
2782 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2783 }
2784
2785 static ssize_t
2786 netxen_store_bridged_mode(struct device *dev,
2787 struct device_attribute *attr, const char *buf, size_t len)
2788 {
2789 struct net_device *net = to_net_dev(dev);
2790 struct netxen_adapter *adapter = netdev_priv(net);
2791 unsigned long new;
2792 int ret = -EINVAL;
2793
2794 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2795 goto err_out;
2796
2797 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2798 goto err_out;
2799
2800 if (kstrtoul(buf, 2, &new))
2801 goto err_out;
2802
2803 if (!netxen_config_bridged_mode(adapter, !!new))
2804 ret = len;
2805
2806 err_out:
2807 return ret;
2808 }
2809
2810 static ssize_t
2811 netxen_show_bridged_mode(struct device *dev,
2812 struct device_attribute *attr, char *buf)
2813 {
2814 struct net_device *net = to_net_dev(dev);
2815 struct netxen_adapter *adapter;
2816 int bridged_mode = 0;
2817
2818 adapter = netdev_priv(net);
2819
2820 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2821 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2822
2823 return sprintf(buf, "%d\n", bridged_mode);
2824 }
2825
2826 static struct device_attribute dev_attr_bridged_mode = {
2827 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2828 .show = netxen_show_bridged_mode,
2829 .store = netxen_store_bridged_mode,
2830 };
2831
2832 static ssize_t
2833 netxen_store_diag_mode(struct device *dev,
2834 struct device_attribute *attr, const char *buf, size_t len)
2835 {
2836 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2837 unsigned long new;
2838
2839 if (kstrtoul(buf, 2, &new))
2840 return -EINVAL;
2841
2842 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2843 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2844
2845 return len;
2846 }
2847
2848 static ssize_t
2849 netxen_show_diag_mode(struct device *dev,
2850 struct device_attribute *attr, char *buf)
2851 {
2852 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2853
2854 return sprintf(buf, "%d\n",
2855 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2856 }
2857
2858 static struct device_attribute dev_attr_diag_mode = {
2859 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2860 .show = netxen_show_diag_mode,
2861 .store = netxen_store_diag_mode,
2862 };
2863
2864 static int
2865 netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2866 loff_t offset, size_t size)
2867 {
2868 size_t crb_size = 4;
2869
2870 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2871 return -EIO;
2872
2873 if (offset < NETXEN_PCI_CRBSPACE) {
2874 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2875 return -EINVAL;
2876
2877 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2878 NETXEN_PCI_CAMQM_2M_END))
2879 crb_size = 8;
2880 else
2881 return -EINVAL;
2882 }
2883
2884 if ((size != crb_size) || (offset & (crb_size-1)))
2885 return -EINVAL;
2886
2887 return 0;
2888 }
2889
2890 static ssize_t
2891 netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2892 struct bin_attribute *attr,
2893 char *buf, loff_t offset, size_t size)
2894 {
2895 struct device *dev = container_of(kobj, struct device, kobj);
2896 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2897 u32 data;
2898 u64 qmdata;
2899 int ret;
2900
2901 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2902 if (ret != 0)
2903 return ret;
2904
2905 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2906 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2907 NETXEN_PCI_CAMQM_2M_END)) {
2908 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2909 memcpy(buf, &qmdata, size);
2910 } else {
2911 data = NXRD32(adapter, offset);
2912 memcpy(buf, &data, size);
2913 }
2914
2915 return size;
2916 }
2917
2918 static ssize_t
2919 netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2920 struct bin_attribute *attr,
2921 char *buf, loff_t offset, size_t size)
2922 {
2923 struct device *dev = container_of(kobj, struct device, kobj);
2924 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2925 u32 data;
2926 u64 qmdata;
2927 int ret;
2928
2929 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2930 if (ret != 0)
2931 return ret;
2932
2933 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2934 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2935 NETXEN_PCI_CAMQM_2M_END)) {
2936 memcpy(&qmdata, buf, size);
2937 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2938 } else {
2939 memcpy(&data, buf, size);
2940 NXWR32(adapter, offset, data);
2941 }
2942
2943 return size;
2944 }
2945
2946 static int
2947 netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2948 loff_t offset, size_t size)
2949 {
2950 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2951 return -EIO;
2952
2953 if ((size != 8) || (offset & 0x7))
2954 return -EIO;
2955
2956 return 0;
2957 }
2958
2959 static ssize_t
2960 netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2961 struct bin_attribute *attr,
2962 char *buf, loff_t offset, size_t size)
2963 {
2964 struct device *dev = container_of(kobj, struct device, kobj);
2965 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2966 u64 data;
2967 int ret;
2968
2969 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2970 if (ret != 0)
2971 return ret;
2972
2973 if (adapter->pci_mem_read(adapter, offset, &data))
2974 return -EIO;
2975
2976 memcpy(buf, &data, size);
2977
2978 return size;
2979 }
2980
2981 static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
2982 struct bin_attribute *attr, char *buf,
2983 loff_t offset, size_t size)
2984 {
2985 struct device *dev = container_of(kobj, struct device, kobj);
2986 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2987 u64 data;
2988 int ret;
2989
2990 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2991 if (ret != 0)
2992 return ret;
2993
2994 memcpy(&data, buf, size);
2995
2996 if (adapter->pci_mem_write(adapter, offset, data))
2997 return -EIO;
2998
2999 return size;
3000 }
3001
3002
3003 static struct bin_attribute bin_attr_crb = {
3004 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
3005 .size = 0,
3006 .read = netxen_sysfs_read_crb,
3007 .write = netxen_sysfs_write_crb,
3008 };
3009
3010 static struct bin_attribute bin_attr_mem = {
3011 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
3012 .size = 0,
3013 .read = netxen_sysfs_read_mem,
3014 .write = netxen_sysfs_write_mem,
3015 };
3016
3017 static ssize_t
3018 netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj,
3019 struct bin_attribute *attr,
3020 char *buf, loff_t offset, size_t size)
3021 {
3022 struct device *dev = container_of(kobj, struct device, kobj);
3023 struct netxen_adapter *adapter = dev_get_drvdata(dev);
3024 struct net_device *netdev = adapter->netdev;
3025 struct netxen_dimm_cfg dimm;
3026 u8 dw, rows, cols, banks, ranks;
3027 u32 val;
3028
3029 if (size != sizeof(struct netxen_dimm_cfg)) {
3030 netdev_err(netdev, "Invalid size\n");
3031 return -1;
3032 }
3033
3034 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg));
3035 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY);
3036
3037 /* Checks if DIMM info is valid. */
3038 if (val & NETXEN_DIMM_VALID_FLAG) {
3039 netdev_err(netdev, "Invalid DIMM flag\n");
3040 dimm.presence = 0xff;
3041 goto out;
3042 }
3043
3044 rows = NETXEN_DIMM_NUMROWS(val);
3045 cols = NETXEN_DIMM_NUMCOLS(val);
3046 ranks = NETXEN_DIMM_NUMRANKS(val);
3047 banks = NETXEN_DIMM_NUMBANKS(val);
3048 dw = NETXEN_DIMM_DATAWIDTH(val);
3049
3050 dimm.presence = (val & NETXEN_DIMM_PRESENT);
3051
3052 /* Checks if DIMM info is present. */
3053 if (!dimm.presence) {
3054 netdev_err(netdev, "DIMM not present\n");
3055 goto out;
3056 }
3057
3058 dimm.dimm_type = NETXEN_DIMM_TYPE(val);
3059
3060 switch (dimm.dimm_type) {
3061 case NETXEN_DIMM_TYPE_RDIMM:
3062 case NETXEN_DIMM_TYPE_UDIMM:
3063 case NETXEN_DIMM_TYPE_SO_DIMM:
3064 case NETXEN_DIMM_TYPE_Micro_DIMM:
3065 case NETXEN_DIMM_TYPE_Mini_RDIMM:
3066 case NETXEN_DIMM_TYPE_Mini_UDIMM:
3067 break;
3068 default:
3069 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type);
3070 goto out;
3071 }
3072
3073 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM)
3074 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM;
3075 else
3076 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val);
3077
3078 if (val & NETXEN_DIMM_SIZE) {
3079 dimm.size = NETXEN_DIMM_STD_MEM_SIZE;
3080 goto out;
3081 }
3082
3083 if (!rows) {
3084 netdev_err(netdev, "Invalid no of rows %x\n", rows);
3085 goto out;
3086 }
3087
3088 if (!cols) {
3089 netdev_err(netdev, "Invalid no of columns %x\n", cols);
3090 goto out;
3091 }
3092
3093 if (!banks) {
3094 netdev_err(netdev, "Invalid no of banks %x\n", banks);
3095 goto out;
3096 }
3097
3098 ranks += 1;
3099
3100 switch (dw) {
3101 case 0x0:
3102 dw = 32;
3103 break;
3104 case 0x1:
3105 dw = 33;
3106 break;
3107 case 0x2:
3108 dw = 36;
3109 break;
3110 case 0x3:
3111 dw = 64;
3112 break;
3113 case 0x4:
3114 dw = 72;
3115 break;
3116 case 0x5:
3117 dw = 80;
3118 break;
3119 case 0x6:
3120 dw = 128;
3121 break;
3122 case 0x7:
3123 dw = 144;
3124 break;
3125 default:
3126 netdev_err(netdev, "Invalid data-width %x\n", dw);
3127 goto out;
3128 }
3129
3130 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8;
3131 /* Size returned in MB. */
3132 dimm.size = (dimm.size) / 0x100000;
3133 out:
3134 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg));
3135 return sizeof(struct netxen_dimm_cfg);
3136
3137 }
3138
3139 static struct bin_attribute bin_attr_dimm = {
3140 .attr = { .name = "dimm", .mode = (S_IRUGO | S_IWUSR) },
3141 .size = 0,
3142 .read = netxen_sysfs_read_dimm,
3143 };
3144
3145
3146 static void
3147 netxen_create_sysfs_entries(struct netxen_adapter *adapter)
3148 {
3149 struct device *dev = &adapter->pdev->dev;
3150
3151 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
3152 /* bridged_mode control */
3153 if (device_create_file(dev, &dev_attr_bridged_mode)) {
3154 dev_warn(dev,
3155 "failed to create bridged_mode sysfs entry\n");
3156 }
3157 }
3158 }
3159
3160 static void
3161 netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
3162 {
3163 struct device *dev = &adapter->pdev->dev;
3164
3165 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
3166 device_remove_file(dev, &dev_attr_bridged_mode);
3167 }
3168
3169 static void
3170 netxen_create_diag_entries(struct netxen_adapter *adapter)
3171 {
3172 struct pci_dev *pdev = adapter->pdev;
3173 struct device *dev;
3174
3175 dev = &pdev->dev;
3176 if (device_create_file(dev, &dev_attr_diag_mode))
3177 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3178 if (device_create_bin_file(dev, &bin_attr_crb))
3179 dev_info(dev, "failed to create crb sysfs entry\n");
3180 if (device_create_bin_file(dev, &bin_attr_mem))
3181 dev_info(dev, "failed to create mem sysfs entry\n");
3182 if (device_create_bin_file(dev, &bin_attr_dimm))
3183 dev_info(dev, "failed to create dimm sysfs entry\n");
3184 }
3185
3186
3187 static void
3188 netxen_remove_diag_entries(struct netxen_adapter *adapter)
3189 {
3190 struct pci_dev *pdev = adapter->pdev;
3191 struct device *dev = &pdev->dev;
3192
3193 device_remove_file(dev, &dev_attr_diag_mode);
3194 device_remove_bin_file(dev, &bin_attr_crb);
3195 device_remove_bin_file(dev, &bin_attr_mem);
3196 device_remove_bin_file(dev, &bin_attr_dimm);
3197 }
3198
3199 #ifdef CONFIG_INET
3200
3201 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
3202
3203 static int
3204 netxen_destip_supported(struct netxen_adapter *adapter)
3205 {
3206 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
3207 return 0;
3208
3209 if (adapter->ahw.cut_through)
3210 return 0;
3211
3212 return 1;
3213 }
3214
3215 static void
3216 netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
3217 {
3218 struct nx_ip_list *cur, *tmp_cur;
3219
3220 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) {
3221 if (master) {
3222 if (cur->master) {
3223 netxen_config_ipaddr(adapter, cur->ip_addr,
3224 NX_IP_DOWN);
3225 list_del(&cur->list);
3226 kfree(cur);
3227 }
3228 } else {
3229 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
3230 list_del(&cur->list);
3231 kfree(cur);
3232 }
3233 }
3234 }
3235
3236 static bool
3237 netxen_list_config_ip(struct netxen_adapter *adapter,
3238 struct in_ifaddr *ifa, unsigned long event)
3239 {
3240 struct net_device *dev;
3241 struct nx_ip_list *cur, *tmp_cur;
3242 struct list_head *head;
3243 bool ret = false;
3244
3245 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3246
3247 if (dev == NULL)
3248 goto out;
3249
3250 switch (event) {
3251 case NX_IP_UP:
3252 list_for_each(head, &adapter->ip_list) {
3253 cur = list_entry(head, struct nx_ip_list, list);
3254
3255 if (cur->ip_addr == ifa->ifa_address)
3256 goto out;
3257 }
3258
3259 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC);
3260 if (cur == NULL)
3261 goto out;
3262 if (dev->priv_flags & IFF_802_1Q_VLAN)
3263 dev = vlan_dev_real_dev(dev);
3264 cur->master = !!netif_is_bond_master(dev);
3265 cur->ip_addr = ifa->ifa_address;
3266 list_add_tail(&cur->list, &adapter->ip_list);
3267 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
3268 ret = true;
3269 break;
3270 case NX_IP_DOWN:
3271 list_for_each_entry_safe(cur, tmp_cur,
3272 &adapter->ip_list, list) {
3273 if (cur->ip_addr == ifa->ifa_address) {
3274 list_del(&cur->list);
3275 kfree(cur);
3276 netxen_config_ipaddr(adapter, ifa->ifa_address,
3277 NX_IP_DOWN);
3278 ret = true;
3279 break;
3280 }
3281 }
3282 }
3283 out:
3284 return ret;
3285 }
3286
3287 static void
3288 netxen_config_indev_addr(struct netxen_adapter *adapter,
3289 struct net_device *dev, unsigned long event)
3290 {
3291 struct in_device *indev;
3292
3293 if (!netxen_destip_supported(adapter))
3294 return;
3295
3296 indev = in_dev_get(dev);
3297 if (!indev)
3298 return;
3299
3300 for_ifa(indev) {
3301 switch (event) {
3302 case NETDEV_UP:
3303 netxen_list_config_ip(adapter, ifa, NX_IP_UP);
3304 break;
3305 case NETDEV_DOWN:
3306 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN);
3307 break;
3308 default:
3309 break;
3310 }
3311 } endfor_ifa(indev);
3312
3313 in_dev_put(indev);
3314 }
3315
3316 static void
3317 netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)
3318
3319 {
3320 struct netxen_adapter *adapter = netdev_priv(netdev);
3321 struct nx_ip_list *pos, *tmp_pos;
3322 unsigned long ip_event;
3323
3324 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3325 netxen_config_indev_addr(adapter, netdev, event);
3326
3327 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) {
3328 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
3329 }
3330 }
3331
3332 static inline bool
3333 netxen_config_checkdev(struct net_device *dev)
3334 {
3335 struct netxen_adapter *adapter;
3336
3337 if (!is_netxen_netdev(dev))
3338 return false;
3339 adapter = netdev_priv(dev);
3340 if (!adapter)
3341 return false;
3342 if (!netxen_destip_supported(adapter))
3343 return false;
3344 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3345 return false;
3346
3347 return true;
3348 }
3349
3350 /**
3351 * netxen_config_master - configure addresses based on master
3352 * @dev: netxen device
3353 * @event: netdev event
3354 */
3355 static void netxen_config_master(struct net_device *dev, unsigned long event)
3356 {
3357 struct net_device *master, *slave;
3358 struct netxen_adapter *adapter = netdev_priv(dev);
3359
3360 rcu_read_lock();
3361 master = netdev_master_upper_dev_get_rcu(dev);
3362 /*
3363 * This is the case where the netxen nic is being
3364 * enslaved and is dev_open()ed in bond_enslave()
3365 * Now we should program the bond's (and its vlans')
3366 * addresses in the netxen NIC.
3367 */
3368 if (master && netif_is_bond_master(master) &&
3369 !netif_is_bond_slave(dev)) {
3370 netxen_config_indev_addr(adapter, master, event);
3371 for_each_netdev_rcu(&init_net, slave)
3372 if (slave->priv_flags & IFF_802_1Q_VLAN &&
3373 vlan_dev_real_dev(slave) == master)
3374 netxen_config_indev_addr(adapter, slave, event);
3375 }
3376 rcu_read_unlock();
3377 /*
3378 * This is the case where the netxen nic is being
3379 * released and is dev_close()ed in bond_release()
3380 * just before IFF_BONDING is stripped.
3381 */
3382 if (!master && dev->priv_flags & IFF_BONDING)
3383 netxen_free_ip_list(adapter, true);
3384 }
3385
3386 static int netxen_netdev_event(struct notifier_block *this,
3387 unsigned long event, void *ptr)
3388 {
3389 struct netxen_adapter *adapter;
3390 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3391 struct net_device *orig_dev = dev;
3392 struct net_device *slave;
3393
3394 recheck:
3395 if (dev == NULL)
3396 goto done;
3397
3398 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3399 dev = vlan_dev_real_dev(dev);
3400 goto recheck;
3401 }
3402 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3403 /* If this is a bonding device, look for netxen-based slaves*/
3404 if (netif_is_bond_master(dev)) {
3405 rcu_read_lock();
3406 for_each_netdev_in_bond_rcu(dev, slave) {
3407 if (!netxen_config_checkdev(slave))
3408 continue;
3409 adapter = netdev_priv(slave);
3410 netxen_config_indev_addr(adapter,
3411 orig_dev, event);
3412 }
3413 rcu_read_unlock();
3414 } else {
3415 if (!netxen_config_checkdev(dev))
3416 goto done;
3417 adapter = netdev_priv(dev);
3418 /* Act only if the actual netxen is the target */
3419 if (orig_dev == dev)
3420 netxen_config_master(dev, event);
3421 netxen_config_indev_addr(adapter, orig_dev, event);
3422 }
3423 }
3424 done:
3425 return NOTIFY_DONE;
3426 }
3427
3428 static int
3429 netxen_inetaddr_event(struct notifier_block *this,
3430 unsigned long event, void *ptr)
3431 {
3432 struct netxen_adapter *adapter;
3433 struct net_device *dev, *slave;
3434 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3435 unsigned long ip_event;
3436
3437 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3438 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3439 recheck:
3440 if (dev == NULL)
3441 goto done;
3442
3443 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3444 dev = vlan_dev_real_dev(dev);
3445 goto recheck;
3446 }
3447 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3448 /* If this is a bonding device, look for netxen-based slaves*/
3449 if (netif_is_bond_master(dev)) {
3450 rcu_read_lock();
3451 for_each_netdev_in_bond_rcu(dev, slave) {
3452 if (!netxen_config_checkdev(slave))
3453 continue;
3454 adapter = netdev_priv(slave);
3455 netxen_list_config_ip(adapter, ifa, ip_event);
3456 }
3457 rcu_read_unlock();
3458 } else {
3459 if (!netxen_config_checkdev(dev))
3460 goto done;
3461 adapter = netdev_priv(dev);
3462 netxen_list_config_ip(adapter, ifa, ip_event);
3463 }
3464 }
3465 done:
3466 return NOTIFY_DONE;
3467 }
3468
3469 static struct notifier_block netxen_netdev_cb = {
3470 .notifier_call = netxen_netdev_event,
3471 };
3472
3473 static struct notifier_block netxen_inetaddr_cb = {
3474 .notifier_call = netxen_inetaddr_event,
3475 };
3476 #else
3477 static void
3478 netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
3479 { }
3480 static void
3481 netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
3482 { }
3483 #endif
3484
3485 static const struct pci_error_handlers netxen_err_handler = {
3486 .error_detected = netxen_io_error_detected,
3487 .slot_reset = netxen_io_slot_reset,
3488 .resume = netxen_io_resume,
3489 };
3490
3491 static struct pci_driver netxen_driver = {
3492 .name = netxen_nic_driver_name,
3493 .id_table = netxen_pci_tbl,
3494 .probe = netxen_nic_probe,
3495 .remove = netxen_nic_remove,
3496 #ifdef CONFIG_PM
3497 .suspend = netxen_nic_suspend,
3498 .resume = netxen_nic_resume,
3499 #endif
3500 .shutdown = netxen_nic_shutdown,
3501 .err_handler = &netxen_err_handler
3502 };
3503
3504 static int __init netxen_init_module(void)
3505 {
3506 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
3507
3508 #ifdef CONFIG_INET
3509 register_netdevice_notifier(&netxen_netdev_cb);
3510 register_inetaddr_notifier(&netxen_inetaddr_cb);
3511 #endif
3512 return pci_register_driver(&netxen_driver);
3513 }
3514
3515 module_init(netxen_init_module);
3516
3517 static void __exit netxen_exit_module(void)
3518 {
3519 pci_unregister_driver(&netxen_driver);
3520
3521 #ifdef CONFIG_INET
3522 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
3523 unregister_netdevice_notifier(&netxen_netdev_cb);
3524 #endif
3525 }
3526
3527 module_exit(netxen_exit_module);
Linux kernel - Deliverables
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