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af19b491 AKS |
1 | /* |
2 | * Copyright (C) 2009 - QLogic Corporation. | |
3 | * All rights reserved. | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU General Public License | |
7 | * as published by the Free Software Foundation; either version 2 | |
8 | * of the License, or (at your option) any later version. | |
9 | * | |
10 | * This program is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with this program; if not, write to the Free Software | |
17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, | |
18 | * MA 02111-1307, USA. | |
19 | * | |
20 | * The full GNU General Public License is included in this distribution | |
21 | * in the file called "COPYING". | |
22 | * | |
23 | */ | |
24 | ||
5a0e3ad6 | 25 | #include <linux/slab.h> |
af19b491 AKS |
26 | #include <linux/vmalloc.h> |
27 | #include <linux/interrupt.h> | |
28 | ||
29 | #include "qlcnic.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 | ||
38 | MODULE_DESCRIPTION("QLogic 10 GbE Converged Ethernet Driver"); | |
39 | MODULE_LICENSE("GPL"); | |
40 | MODULE_VERSION(QLCNIC_LINUX_VERSIONID); | |
41 | MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME); | |
42 | ||
43 | char qlcnic_driver_name[] = "qlcnic"; | |
44 | static const char qlcnic_driver_string[] = "QLogic Converged Ethernet Driver v" | |
45 | QLCNIC_LINUX_VERSIONID; | |
46 | ||
47 | static int port_mode = QLCNIC_PORT_MODE_AUTO_NEG; | |
48 | ||
49 | /* Default to restricted 1G auto-neg mode */ | |
50 | static int wol_port_mode = 5; | |
51 | ||
52 | static int use_msi = 1; | |
53 | module_param(use_msi, int, 0644); | |
54 | MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled"); | |
55 | ||
56 | static int use_msi_x = 1; | |
57 | module_param(use_msi_x, int, 0644); | |
58 | MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled"); | |
59 | ||
60 | static int auto_fw_reset = AUTO_FW_RESET_ENABLED; | |
61 | module_param(auto_fw_reset, int, 0644); | |
62 | MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled"); | |
63 | ||
64 | static int __devinit qlcnic_probe(struct pci_dev *pdev, | |
65 | const struct pci_device_id *ent); | |
66 | static void __devexit qlcnic_remove(struct pci_dev *pdev); | |
67 | static int qlcnic_open(struct net_device *netdev); | |
68 | static int qlcnic_close(struct net_device *netdev); | |
af19b491 AKS |
69 | static void qlcnic_tx_timeout(struct net_device *netdev); |
70 | static void qlcnic_tx_timeout_task(struct work_struct *work); | |
71 | static void qlcnic_attach_work(struct work_struct *work); | |
72 | static void qlcnic_fwinit_work(struct work_struct *work); | |
73 | static void qlcnic_fw_poll_work(struct work_struct *work); | |
74 | static void qlcnic_schedule_work(struct qlcnic_adapter *adapter, | |
75 | work_func_t func, int delay); | |
76 | static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter); | |
77 | static int qlcnic_poll(struct napi_struct *napi, int budget); | |
78 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
79 | static void qlcnic_poll_controller(struct net_device *netdev); | |
80 | #endif | |
81 | ||
82 | static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter); | |
83 | static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter); | |
84 | static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter); | |
85 | static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter); | |
86 | ||
87 | static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter); | |
88 | static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter); | |
89 | ||
7eb9855d | 90 | static irqreturn_t qlcnic_tmp_intr(int irq, void *data); |
af19b491 AKS |
91 | static irqreturn_t qlcnic_intr(int irq, void *data); |
92 | static irqreturn_t qlcnic_msi_intr(int irq, void *data); | |
93 | static irqreturn_t qlcnic_msix_intr(int irq, void *data); | |
94 | ||
95 | static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev); | |
96 | static void qlcnic_config_indev_addr(struct net_device *dev, unsigned long); | |
97 | ||
98 | /* PCI Device ID Table */ | |
99 | #define ENTRY(device) \ | |
100 | {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \ | |
101 | .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0} | |
102 | ||
103 | #define PCI_DEVICE_ID_QLOGIC_QLE824X 0x8020 | |
104 | ||
6a902881 | 105 | static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = { |
af19b491 AKS |
106 | ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X), |
107 | {0,} | |
108 | }; | |
109 | ||
110 | MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl); | |
111 | ||
112 | ||
113 | void | |
114 | qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter, | |
115 | struct qlcnic_host_tx_ring *tx_ring) | |
116 | { | |
117 | writel(tx_ring->producer, tx_ring->crb_cmd_producer); | |
118 | ||
119 | if (qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH) { | |
120 | netif_stop_queue(adapter->netdev); | |
121 | smp_mb(); | |
8bfe8b91 | 122 | adapter->stats.xmit_off++; |
af19b491 AKS |
123 | } |
124 | } | |
125 | ||
126 | static const u32 msi_tgt_status[8] = { | |
127 | ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, | |
128 | ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3, | |
129 | ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5, | |
130 | ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7 | |
131 | }; | |
132 | ||
133 | static const | |
134 | struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG; | |
135 | ||
136 | static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring) | |
137 | { | |
138 | writel(0, sds_ring->crb_intr_mask); | |
139 | } | |
140 | ||
141 | static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring) | |
142 | { | |
143 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
144 | ||
145 | writel(0x1, sds_ring->crb_intr_mask); | |
146 | ||
147 | if (!QLCNIC_IS_MSI_FAMILY(adapter)) | |
148 | writel(0xfbff, adapter->tgt_mask_reg); | |
149 | } | |
150 | ||
151 | static int | |
152 | qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count) | |
153 | { | |
154 | int size = sizeof(struct qlcnic_host_sds_ring) * count; | |
155 | ||
156 | recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL); | |
157 | ||
158 | return (recv_ctx->sds_rings == NULL); | |
159 | } | |
160 | ||
161 | static void | |
162 | qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx) | |
163 | { | |
164 | if (recv_ctx->sds_rings != NULL) | |
165 | kfree(recv_ctx->sds_rings); | |
166 | ||
167 | recv_ctx->sds_rings = NULL; | |
168 | } | |
169 | ||
170 | static int | |
171 | qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev) | |
172 | { | |
173 | int ring; | |
174 | struct qlcnic_host_sds_ring *sds_ring; | |
175 | struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; | |
176 | ||
177 | if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) | |
178 | return -ENOMEM; | |
179 | ||
180 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
181 | sds_ring = &recv_ctx->sds_rings[ring]; | |
182 | netif_napi_add(netdev, &sds_ring->napi, | |
183 | qlcnic_poll, QLCNIC_NETDEV_WEIGHT); | |
184 | } | |
185 | ||
186 | return 0; | |
187 | } | |
188 | ||
189 | static void | |
190 | qlcnic_napi_del(struct qlcnic_adapter *adapter) | |
191 | { | |
192 | int ring; | |
193 | struct qlcnic_host_sds_ring *sds_ring; | |
194 | struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; | |
195 | ||
196 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
197 | sds_ring = &recv_ctx->sds_rings[ring]; | |
198 | netif_napi_del(&sds_ring->napi); | |
199 | } | |
200 | ||
201 | qlcnic_free_sds_rings(&adapter->recv_ctx); | |
202 | } | |
203 | ||
204 | static void | |
205 | qlcnic_napi_enable(struct qlcnic_adapter *adapter) | |
206 | { | |
207 | int ring; | |
208 | struct qlcnic_host_sds_ring *sds_ring; | |
209 | struct qlcnic_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 | napi_enable(&sds_ring->napi); | |
214 | qlcnic_enable_int(sds_ring); | |
215 | } | |
216 | } | |
217 | ||
218 | static void | |
219 | qlcnic_napi_disable(struct qlcnic_adapter *adapter) | |
220 | { | |
221 | int ring; | |
222 | struct qlcnic_host_sds_ring *sds_ring; | |
223 | struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; | |
224 | ||
225 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
226 | sds_ring = &recv_ctx->sds_rings[ring]; | |
227 | qlcnic_disable_int(sds_ring); | |
228 | napi_synchronize(&sds_ring->napi); | |
229 | napi_disable(&sds_ring->napi); | |
230 | } | |
231 | } | |
232 | ||
233 | static void qlcnic_clear_stats(struct qlcnic_adapter *adapter) | |
234 | { | |
235 | memset(&adapter->stats, 0, sizeof(adapter->stats)); | |
236 | return; | |
237 | } | |
238 | ||
239 | static int qlcnic_set_dma_mask(struct qlcnic_adapter *adapter) | |
240 | { | |
241 | struct pci_dev *pdev = adapter->pdev; | |
242 | u64 mask, cmask; | |
243 | ||
244 | adapter->pci_using_dac = 0; | |
245 | ||
246 | mask = DMA_BIT_MASK(39); | |
247 | cmask = mask; | |
248 | ||
249 | if (pci_set_dma_mask(pdev, mask) == 0 && | |
250 | pci_set_consistent_dma_mask(pdev, cmask) == 0) { | |
251 | adapter->pci_using_dac = 1; | |
252 | return 0; | |
253 | } | |
254 | ||
255 | return -EIO; | |
256 | } | |
257 | ||
258 | /* Update addressable range if firmware supports it */ | |
259 | static int | |
260 | qlcnic_update_dma_mask(struct qlcnic_adapter *adapter) | |
261 | { | |
262 | int change, shift, err; | |
263 | u64 mask, old_mask, old_cmask; | |
264 | struct pci_dev *pdev = adapter->pdev; | |
265 | ||
266 | change = 0; | |
267 | ||
268 | shift = QLCRD32(adapter, CRB_DMA_SHIFT); | |
269 | if (shift > 32) | |
270 | return 0; | |
271 | ||
272 | if (shift > 9) | |
273 | change = 1; | |
274 | ||
275 | if (change) { | |
276 | old_mask = pdev->dma_mask; | |
277 | old_cmask = pdev->dev.coherent_dma_mask; | |
278 | ||
279 | mask = DMA_BIT_MASK(32+shift); | |
280 | ||
281 | err = pci_set_dma_mask(pdev, mask); | |
282 | if (err) | |
283 | goto err_out; | |
284 | ||
285 | err = pci_set_consistent_dma_mask(pdev, mask); | |
286 | if (err) | |
287 | goto err_out; | |
288 | dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift); | |
289 | } | |
290 | ||
291 | return 0; | |
292 | ||
293 | err_out: | |
294 | pci_set_dma_mask(pdev, old_mask); | |
295 | pci_set_consistent_dma_mask(pdev, old_cmask); | |
296 | return err; | |
297 | } | |
298 | ||
299 | static void qlcnic_set_port_mode(struct qlcnic_adapter *adapter) | |
300 | { | |
301 | u32 val, data; | |
302 | ||
303 | val = adapter->ahw.board_type; | |
304 | if ((val == QLCNIC_BRDTYPE_P3_HMEZ) || | |
305 | (val == QLCNIC_BRDTYPE_P3_XG_LOM)) { | |
306 | if (port_mode == QLCNIC_PORT_MODE_802_3_AP) { | |
307 | data = QLCNIC_PORT_MODE_802_3_AP; | |
308 | QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); | |
309 | } else if (port_mode == QLCNIC_PORT_MODE_XG) { | |
310 | data = QLCNIC_PORT_MODE_XG; | |
311 | QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); | |
312 | } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_1G) { | |
313 | data = QLCNIC_PORT_MODE_AUTO_NEG_1G; | |
314 | QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); | |
315 | } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_XG) { | |
316 | data = QLCNIC_PORT_MODE_AUTO_NEG_XG; | |
317 | QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); | |
318 | } else { | |
319 | data = QLCNIC_PORT_MODE_AUTO_NEG; | |
320 | QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); | |
321 | } | |
322 | ||
323 | if ((wol_port_mode != QLCNIC_PORT_MODE_802_3_AP) && | |
324 | (wol_port_mode != QLCNIC_PORT_MODE_XG) && | |
325 | (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_1G) && | |
326 | (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_XG)) { | |
327 | wol_port_mode = QLCNIC_PORT_MODE_AUTO_NEG; | |
328 | } | |
329 | QLCWR32(adapter, QLCNIC_WOL_PORT_MODE, wol_port_mode); | |
330 | } | |
331 | } | |
332 | ||
333 | static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable) | |
334 | { | |
335 | u32 control; | |
336 | int pos; | |
337 | ||
338 | pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); | |
339 | if (pos) { | |
340 | pci_read_config_dword(pdev, pos, &control); | |
341 | if (enable) | |
342 | control |= PCI_MSIX_FLAGS_ENABLE; | |
343 | else | |
344 | control = 0; | |
345 | pci_write_config_dword(pdev, pos, control); | |
346 | } | |
347 | } | |
348 | ||
349 | static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count) | |
350 | { | |
351 | int i; | |
352 | ||
353 | for (i = 0; i < count; i++) | |
354 | adapter->msix_entries[i].entry = i; | |
355 | } | |
356 | ||
357 | static int | |
358 | qlcnic_read_mac_addr(struct qlcnic_adapter *adapter) | |
359 | { | |
360 | int i; | |
361 | unsigned char *p; | |
362 | u64 mac_addr; | |
363 | struct net_device *netdev = adapter->netdev; | |
364 | struct pci_dev *pdev = adapter->pdev; | |
365 | ||
366 | if (qlcnic_get_mac_addr(adapter, &mac_addr) != 0) | |
367 | return -EIO; | |
368 | ||
369 | p = (unsigned char *)&mac_addr; | |
370 | for (i = 0; i < 6; i++) | |
371 | netdev->dev_addr[i] = *(p + 5 - i); | |
372 | ||
373 | memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len); | |
374 | memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len); | |
375 | ||
376 | /* set station address */ | |
377 | ||
378 | if (!is_valid_ether_addr(netdev->perm_addr)) | |
379 | dev_warn(&pdev->dev, "Bad MAC address %pM.\n", | |
380 | netdev->dev_addr); | |
381 | ||
382 | return 0; | |
383 | } | |
384 | ||
385 | static int qlcnic_set_mac(struct net_device *netdev, void *p) | |
386 | { | |
387 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
388 | struct sockaddr *addr = p; | |
389 | ||
390 | if (!is_valid_ether_addr(addr->sa_data)) | |
391 | return -EINVAL; | |
392 | ||
393 | if (netif_running(netdev)) { | |
394 | netif_device_detach(netdev); | |
395 | qlcnic_napi_disable(adapter); | |
396 | } | |
397 | ||
398 | memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len); | |
399 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); | |
400 | qlcnic_set_multi(adapter->netdev); | |
401 | ||
402 | if (netif_running(netdev)) { | |
403 | netif_device_attach(netdev); | |
404 | qlcnic_napi_enable(adapter); | |
405 | } | |
406 | return 0; | |
407 | } | |
408 | ||
409 | static const struct net_device_ops qlcnic_netdev_ops = { | |
410 | .ndo_open = qlcnic_open, | |
411 | .ndo_stop = qlcnic_close, | |
412 | .ndo_start_xmit = qlcnic_xmit_frame, | |
413 | .ndo_get_stats = qlcnic_get_stats, | |
414 | .ndo_validate_addr = eth_validate_addr, | |
415 | .ndo_set_multicast_list = qlcnic_set_multi, | |
416 | .ndo_set_mac_address = qlcnic_set_mac, | |
417 | .ndo_change_mtu = qlcnic_change_mtu, | |
418 | .ndo_tx_timeout = qlcnic_tx_timeout, | |
419 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
420 | .ndo_poll_controller = qlcnic_poll_controller, | |
421 | #endif | |
422 | }; | |
423 | ||
424 | static void | |
425 | qlcnic_setup_intr(struct qlcnic_adapter *adapter) | |
426 | { | |
427 | const struct qlcnic_legacy_intr_set *legacy_intrp; | |
428 | struct pci_dev *pdev = adapter->pdev; | |
429 | int err, num_msix; | |
430 | ||
431 | if (adapter->rss_supported) { | |
432 | num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ? | |
433 | MSIX_ENTRIES_PER_ADAPTER : 2; | |
434 | } else | |
435 | num_msix = 1; | |
436 | ||
437 | adapter->max_sds_rings = 1; | |
438 | ||
439 | adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED); | |
440 | ||
441 | legacy_intrp = &legacy_intr[adapter->ahw.pci_func]; | |
442 | ||
443 | adapter->int_vec_bit = legacy_intrp->int_vec_bit; | |
444 | adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter, | |
445 | legacy_intrp->tgt_status_reg); | |
446 | adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter, | |
447 | legacy_intrp->tgt_mask_reg); | |
448 | adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR); | |
449 | ||
450 | adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter, | |
451 | ISR_INT_STATE_REG); | |
452 | ||
453 | qlcnic_set_msix_bit(pdev, 0); | |
454 | ||
455 | if (adapter->msix_supported) { | |
456 | ||
457 | qlcnic_init_msix_entries(adapter, num_msix); | |
458 | err = pci_enable_msix(pdev, adapter->msix_entries, num_msix); | |
459 | if (err == 0) { | |
460 | adapter->flags |= QLCNIC_MSIX_ENABLED; | |
461 | qlcnic_set_msix_bit(pdev, 1); | |
462 | ||
463 | if (adapter->rss_supported) | |
464 | adapter->max_sds_rings = num_msix; | |
465 | ||
466 | dev_info(&pdev->dev, "using msi-x interrupts\n"); | |
467 | return; | |
468 | } | |
469 | ||
470 | if (err > 0) | |
471 | pci_disable_msix(pdev); | |
472 | ||
473 | /* fall through for msi */ | |
474 | } | |
475 | ||
476 | if (use_msi && !pci_enable_msi(pdev)) { | |
477 | adapter->flags |= QLCNIC_MSI_ENABLED; | |
478 | adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter, | |
479 | msi_tgt_status[adapter->ahw.pci_func]); | |
480 | dev_info(&pdev->dev, "using msi interrupts\n"); | |
481 | adapter->msix_entries[0].vector = pdev->irq; | |
482 | return; | |
483 | } | |
484 | ||
485 | dev_info(&pdev->dev, "using legacy interrupts\n"); | |
486 | adapter->msix_entries[0].vector = pdev->irq; | |
487 | } | |
488 | ||
489 | static void | |
490 | qlcnic_teardown_intr(struct qlcnic_adapter *adapter) | |
491 | { | |
492 | if (adapter->flags & QLCNIC_MSIX_ENABLED) | |
493 | pci_disable_msix(adapter->pdev); | |
494 | if (adapter->flags & QLCNIC_MSI_ENABLED) | |
495 | pci_disable_msi(adapter->pdev); | |
496 | } | |
497 | ||
498 | static void | |
499 | qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter) | |
500 | { | |
501 | if (adapter->ahw.pci_base0 != NULL) | |
502 | iounmap(adapter->ahw.pci_base0); | |
503 | } | |
504 | ||
505 | static int | |
506 | qlcnic_setup_pci_map(struct qlcnic_adapter *adapter) | |
507 | { | |
508 | void __iomem *mem_ptr0 = NULL; | |
509 | resource_size_t mem_base; | |
510 | unsigned long mem_len, pci_len0 = 0; | |
511 | ||
512 | struct pci_dev *pdev = adapter->pdev; | |
513 | int pci_func = adapter->ahw.pci_func; | |
514 | ||
515 | /* | |
516 | * Set the CRB window to invalid. If any register in window 0 is | |
517 | * accessed it should set the window to 0 and then reset it to 1. | |
518 | */ | |
519 | adapter->ahw.crb_win = -1; | |
520 | adapter->ahw.ocm_win = -1; | |
521 | ||
522 | /* remap phys address */ | |
523 | mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ | |
524 | mem_len = pci_resource_len(pdev, 0); | |
525 | ||
526 | if (mem_len == QLCNIC_PCI_2MB_SIZE) { | |
527 | ||
528 | mem_ptr0 = pci_ioremap_bar(pdev, 0); | |
529 | if (mem_ptr0 == NULL) { | |
530 | dev_err(&pdev->dev, "failed to map PCI bar 0\n"); | |
531 | return -EIO; | |
532 | } | |
533 | pci_len0 = mem_len; | |
534 | } else { | |
535 | return -EIO; | |
536 | } | |
537 | ||
538 | dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); | |
539 | ||
540 | adapter->ahw.pci_base0 = mem_ptr0; | |
541 | adapter->ahw.pci_len0 = pci_len0; | |
542 | ||
543 | adapter->ahw.ocm_win_crb = qlcnic_get_ioaddr(adapter, | |
544 | QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func))); | |
545 | ||
546 | return 0; | |
547 | } | |
548 | ||
549 | static void get_brd_name(struct qlcnic_adapter *adapter, char *name) | |
550 | { | |
551 | struct pci_dev *pdev = adapter->pdev; | |
552 | int i, found = 0; | |
553 | ||
554 | for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) { | |
555 | if (qlcnic_boards[i].vendor == pdev->vendor && | |
556 | qlcnic_boards[i].device == pdev->device && | |
557 | qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor && | |
558 | qlcnic_boards[i].sub_device == pdev->subsystem_device) { | |
559 | strcpy(name, qlcnic_boards[i].short_name); | |
560 | found = 1; | |
561 | break; | |
562 | } | |
563 | ||
564 | } | |
565 | ||
566 | if (!found) | |
567 | name = "Unknown"; | |
568 | } | |
569 | ||
570 | static void | |
571 | qlcnic_check_options(struct qlcnic_adapter *adapter) | |
572 | { | |
573 | u32 fw_major, fw_minor, fw_build; | |
574 | char brd_name[QLCNIC_MAX_BOARD_NAME_LEN]; | |
575 | char serial_num[32]; | |
576 | int i, offset, val; | |
577 | int *ptr32; | |
578 | struct pci_dev *pdev = adapter->pdev; | |
579 | ||
580 | adapter->driver_mismatch = 0; | |
581 | ||
582 | ptr32 = (int *)&serial_num; | |
583 | offset = QLCNIC_FW_SERIAL_NUM_OFFSET; | |
584 | for (i = 0; i < 8; i++) { | |
585 | if (qlcnic_rom_fast_read(adapter, offset, &val) == -1) { | |
586 | dev_err(&pdev->dev, "error reading board info\n"); | |
587 | adapter->driver_mismatch = 1; | |
588 | return; | |
589 | } | |
590 | ptr32[i] = cpu_to_le32(val); | |
591 | offset += sizeof(u32); | |
592 | } | |
593 | ||
594 | fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR); | |
595 | fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR); | |
596 | fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB); | |
597 | ||
598 | adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build); | |
599 | ||
600 | if (adapter->portnum == 0) { | |
601 | get_brd_name(adapter, brd_name); | |
602 | ||
603 | pr_info("%s: %s Board Chip rev 0x%x\n", | |
604 | module_name(THIS_MODULE), | |
605 | brd_name, adapter->ahw.revision_id); | |
606 | } | |
607 | ||
608 | if (adapter->fw_version < QLCNIC_VERSION_CODE(3, 4, 216)) { | |
609 | adapter->driver_mismatch = 1; | |
610 | dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n", | |
611 | fw_major, fw_minor, fw_build); | |
612 | return; | |
613 | } | |
614 | ||
615 | i = QLCRD32(adapter, QLCNIC_SRE_MISC); | |
616 | adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0; | |
617 | ||
618 | dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n", | |
619 | fw_major, fw_minor, fw_build, | |
620 | adapter->ahw.cut_through ? "cut-through" : "legacy"); | |
621 | ||
622 | if (adapter->fw_version >= QLCNIC_VERSION_CODE(4, 0, 222)) | |
623 | adapter->capabilities = QLCRD32(adapter, CRB_FW_CAPABILITIES_1); | |
624 | ||
625 | adapter->flags &= ~QLCNIC_LRO_ENABLED; | |
626 | ||
627 | if (adapter->ahw.port_type == QLCNIC_XGBE) { | |
628 | adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G; | |
629 | adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; | |
630 | } else if (adapter->ahw.port_type == QLCNIC_GBE) { | |
631 | adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G; | |
632 | adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; | |
633 | } | |
634 | ||
635 | adapter->msix_supported = !!use_msi_x; | |
636 | adapter->rss_supported = !!use_msi_x; | |
637 | ||
638 | adapter->num_txd = MAX_CMD_DESCRIPTORS; | |
639 | ||
640 | adapter->num_lro_rxd = 0; | |
641 | adapter->max_rds_rings = 2; | |
642 | } | |
643 | ||
644 | static int | |
645 | qlcnic_start_firmware(struct qlcnic_adapter *adapter) | |
646 | { | |
647 | int val, err, first_boot; | |
648 | ||
649 | err = qlcnic_set_dma_mask(adapter); | |
650 | if (err) | |
651 | return err; | |
652 | ||
aa5e18c0 SC |
653 | err = qlcnic_can_start_firmware(adapter); |
654 | if (err < 0) | |
655 | return err; | |
656 | else if (!err) | |
af19b491 AKS |
657 | goto wait_init; |
658 | ||
659 | first_boot = QLCRD32(adapter, QLCNIC_CAM_RAM(0x1fc)); | |
660 | if (first_boot == 0x55555555) | |
661 | /* This is the first boot after power up */ | |
662 | QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC); | |
663 | ||
664 | qlcnic_request_firmware(adapter); | |
665 | ||
666 | err = qlcnic_need_fw_reset(adapter); | |
667 | if (err < 0) | |
668 | goto err_out; | |
669 | if (err == 0) | |
670 | goto wait_init; | |
671 | ||
672 | if (first_boot != 0x55555555) { | |
673 | QLCWR32(adapter, CRB_CMDPEG_STATE, 0); | |
674 | qlcnic_pinit_from_rom(adapter); | |
675 | msleep(1); | |
676 | } | |
677 | ||
678 | QLCWR32(adapter, CRB_DMA_SHIFT, 0x55555555); | |
679 | QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0); | |
680 | QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0); | |
681 | ||
682 | qlcnic_set_port_mode(adapter); | |
683 | ||
684 | err = qlcnic_load_firmware(adapter); | |
685 | if (err) | |
686 | goto err_out; | |
687 | ||
688 | qlcnic_release_firmware(adapter); | |
689 | ||
690 | val = (_QLCNIC_LINUX_MAJOR << 16) | |
691 | | ((_QLCNIC_LINUX_MINOR << 8)) | |
692 | | (_QLCNIC_LINUX_SUBVERSION); | |
693 | QLCWR32(adapter, CRB_DRIVER_VERSION, val); | |
694 | ||
695 | wait_init: | |
696 | /* Handshake with the card before we register the devices. */ | |
697 | err = qlcnic_phantom_init(adapter); | |
698 | if (err) | |
699 | goto err_out; | |
700 | ||
701 | QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY); | |
702 | ||
703 | qlcnic_update_dma_mask(adapter); | |
704 | ||
705 | qlcnic_check_options(adapter); | |
706 | ||
707 | adapter->need_fw_reset = 0; | |
708 | ||
709 | /* fall through and release firmware */ | |
710 | ||
711 | err_out: | |
712 | qlcnic_release_firmware(adapter); | |
713 | return err; | |
714 | } | |
715 | ||
716 | static int | |
717 | qlcnic_request_irq(struct qlcnic_adapter *adapter) | |
718 | { | |
719 | irq_handler_t handler; | |
720 | struct qlcnic_host_sds_ring *sds_ring; | |
721 | int err, ring; | |
722 | ||
723 | unsigned long flags = 0; | |
724 | struct net_device *netdev = adapter->netdev; | |
725 | struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; | |
726 | ||
7eb9855d AKS |
727 | if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) { |
728 | handler = qlcnic_tmp_intr; | |
729 | if (!QLCNIC_IS_MSI_FAMILY(adapter)) | |
730 | flags |= IRQF_SHARED; | |
731 | ||
732 | } else { | |
733 | if (adapter->flags & QLCNIC_MSIX_ENABLED) | |
734 | handler = qlcnic_msix_intr; | |
735 | else if (adapter->flags & QLCNIC_MSI_ENABLED) | |
736 | handler = qlcnic_msi_intr; | |
737 | else { | |
738 | flags |= IRQF_SHARED; | |
739 | handler = qlcnic_intr; | |
740 | } | |
af19b491 AKS |
741 | } |
742 | adapter->irq = netdev->irq; | |
743 | ||
744 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
745 | sds_ring = &recv_ctx->sds_rings[ring]; | |
746 | sprintf(sds_ring->name, "%s[%d]", netdev->name, ring); | |
747 | err = request_irq(sds_ring->irq, handler, | |
748 | flags, sds_ring->name, sds_ring); | |
749 | if (err) | |
750 | return err; | |
751 | } | |
752 | ||
753 | return 0; | |
754 | } | |
755 | ||
756 | static void | |
757 | qlcnic_free_irq(struct qlcnic_adapter *adapter) | |
758 | { | |
759 | int ring; | |
760 | struct qlcnic_host_sds_ring *sds_ring; | |
761 | ||
762 | struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; | |
763 | ||
764 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
765 | sds_ring = &recv_ctx->sds_rings[ring]; | |
766 | free_irq(sds_ring->irq, sds_ring); | |
767 | } | |
768 | } | |
769 | ||
770 | static void | |
771 | qlcnic_init_coalesce_defaults(struct qlcnic_adapter *adapter) | |
772 | { | |
773 | adapter->coal.flags = QLCNIC_INTR_DEFAULT; | |
774 | adapter->coal.normal.data.rx_time_us = | |
775 | QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US; | |
776 | adapter->coal.normal.data.rx_packets = | |
777 | QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS; | |
778 | adapter->coal.normal.data.tx_time_us = | |
779 | QLCNIC_DEFAULT_INTR_COALESCE_TX_TIME_US; | |
780 | adapter->coal.normal.data.tx_packets = | |
781 | QLCNIC_DEFAULT_INTR_COALESCE_TX_PACKETS; | |
782 | } | |
783 | ||
784 | static int | |
785 | __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev) | |
786 | { | |
787 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
788 | return -EIO; | |
789 | ||
790 | qlcnic_set_multi(netdev); | |
791 | qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu); | |
792 | ||
793 | adapter->ahw.linkup = 0; | |
794 | ||
795 | if (adapter->max_sds_rings > 1) | |
796 | qlcnic_config_rss(adapter, 1); | |
797 | ||
798 | qlcnic_config_intr_coalesce(adapter); | |
799 | ||
800 | if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO) | |
801 | qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED); | |
802 | ||
803 | qlcnic_napi_enable(adapter); | |
804 | ||
805 | qlcnic_linkevent_request(adapter, 1); | |
806 | ||
807 | set_bit(__QLCNIC_DEV_UP, &adapter->state); | |
808 | return 0; | |
809 | } | |
810 | ||
811 | /* Usage: During resume and firmware recovery module.*/ | |
812 | ||
813 | static int | |
814 | qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev) | |
815 | { | |
816 | int err = 0; | |
817 | ||
818 | rtnl_lock(); | |
819 | if (netif_running(netdev)) | |
820 | err = __qlcnic_up(adapter, netdev); | |
821 | rtnl_unlock(); | |
822 | ||
823 | return err; | |
824 | } | |
825 | ||
826 | static void | |
827 | __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev) | |
828 | { | |
829 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
830 | return; | |
831 | ||
832 | if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state)) | |
833 | return; | |
834 | ||
835 | smp_mb(); | |
836 | spin_lock(&adapter->tx_clean_lock); | |
837 | netif_carrier_off(netdev); | |
838 | netif_tx_disable(netdev); | |
839 | ||
840 | qlcnic_free_mac_list(adapter); | |
841 | ||
842 | qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE); | |
843 | ||
844 | qlcnic_napi_disable(adapter); | |
845 | ||
846 | qlcnic_release_tx_buffers(adapter); | |
847 | spin_unlock(&adapter->tx_clean_lock); | |
848 | } | |
849 | ||
850 | /* Usage: During suspend and firmware recovery module */ | |
851 | ||
852 | static void | |
853 | qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev) | |
854 | { | |
855 | rtnl_lock(); | |
856 | if (netif_running(netdev)) | |
857 | __qlcnic_down(adapter, netdev); | |
858 | rtnl_unlock(); | |
859 | ||
860 | } | |
861 | ||
862 | static int | |
863 | qlcnic_attach(struct qlcnic_adapter *adapter) | |
864 | { | |
865 | struct net_device *netdev = adapter->netdev; | |
866 | struct pci_dev *pdev = adapter->pdev; | |
867 | int err, ring; | |
868 | struct qlcnic_host_rds_ring *rds_ring; | |
869 | ||
870 | if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) | |
871 | return 0; | |
872 | ||
873 | err = qlcnic_init_firmware(adapter); | |
874 | if (err) | |
875 | return err; | |
876 | ||
877 | err = qlcnic_napi_add(adapter, netdev); | |
878 | if (err) | |
879 | return err; | |
880 | ||
881 | err = qlcnic_alloc_sw_resources(adapter); | |
882 | if (err) { | |
883 | dev_err(&pdev->dev, "Error in setting sw resources\n"); | |
884 | return err; | |
885 | } | |
886 | ||
887 | err = qlcnic_alloc_hw_resources(adapter); | |
888 | if (err) { | |
889 | dev_err(&pdev->dev, "Error in setting hw resources\n"); | |
890 | goto err_out_free_sw; | |
891 | } | |
892 | ||
893 | ||
894 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { | |
895 | rds_ring = &adapter->recv_ctx.rds_rings[ring]; | |
896 | qlcnic_post_rx_buffers(adapter, ring, rds_ring); | |
897 | } | |
898 | ||
899 | err = qlcnic_request_irq(adapter); | |
900 | if (err) { | |
901 | dev_err(&pdev->dev, "failed to setup interrupt\n"); | |
902 | goto err_out_free_rxbuf; | |
903 | } | |
904 | ||
905 | qlcnic_init_coalesce_defaults(adapter); | |
906 | ||
907 | qlcnic_create_sysfs_entries(adapter); | |
908 | ||
909 | adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC; | |
910 | return 0; | |
911 | ||
912 | err_out_free_rxbuf: | |
913 | qlcnic_release_rx_buffers(adapter); | |
914 | qlcnic_free_hw_resources(adapter); | |
915 | err_out_free_sw: | |
916 | qlcnic_free_sw_resources(adapter); | |
917 | return err; | |
918 | } | |
919 | ||
920 | static void | |
921 | qlcnic_detach(struct qlcnic_adapter *adapter) | |
922 | { | |
923 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
924 | return; | |
925 | ||
926 | qlcnic_remove_sysfs_entries(adapter); | |
927 | ||
928 | qlcnic_free_hw_resources(adapter); | |
929 | qlcnic_release_rx_buffers(adapter); | |
930 | qlcnic_free_irq(adapter); | |
931 | qlcnic_napi_del(adapter); | |
932 | qlcnic_free_sw_resources(adapter); | |
933 | ||
934 | adapter->is_up = 0; | |
935 | } | |
936 | ||
7eb9855d AKS |
937 | void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings) |
938 | { | |
939 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
940 | struct qlcnic_host_sds_ring *sds_ring; | |
941 | int ring; | |
942 | ||
cdaff185 AKS |
943 | if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) { |
944 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
945 | sds_ring = &adapter->recv_ctx.sds_rings[ring]; | |
946 | qlcnic_disable_int(sds_ring); | |
947 | } | |
7eb9855d AKS |
948 | } |
949 | ||
950 | qlcnic_detach(adapter); | |
951 | ||
952 | adapter->diag_test = 0; | |
953 | adapter->max_sds_rings = max_sds_rings; | |
954 | ||
955 | if (qlcnic_attach(adapter)) | |
34ce3626 | 956 | goto out; |
7eb9855d AKS |
957 | |
958 | if (netif_running(netdev)) | |
959 | __qlcnic_up(adapter, netdev); | |
34ce3626 | 960 | out: |
7eb9855d AKS |
961 | netif_device_attach(netdev); |
962 | } | |
963 | ||
964 | int qlcnic_diag_alloc_res(struct net_device *netdev, int test) | |
965 | { | |
966 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
967 | struct qlcnic_host_sds_ring *sds_ring; | |
968 | int ring; | |
969 | int ret; | |
970 | ||
971 | netif_device_detach(netdev); | |
972 | ||
973 | if (netif_running(netdev)) | |
974 | __qlcnic_down(adapter, netdev); | |
975 | ||
976 | qlcnic_detach(adapter); | |
977 | ||
978 | adapter->max_sds_rings = 1; | |
979 | adapter->diag_test = test; | |
980 | ||
981 | ret = qlcnic_attach(adapter); | |
34ce3626 AKS |
982 | if (ret) { |
983 | netif_device_attach(netdev); | |
7eb9855d | 984 | return ret; |
34ce3626 | 985 | } |
7eb9855d | 986 | |
cdaff185 AKS |
987 | if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) { |
988 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
989 | sds_ring = &adapter->recv_ctx.sds_rings[ring]; | |
990 | qlcnic_enable_int(sds_ring); | |
991 | } | |
7eb9855d AKS |
992 | } |
993 | ||
994 | return 0; | |
995 | } | |
996 | ||
af19b491 AKS |
997 | int |
998 | qlcnic_reset_context(struct qlcnic_adapter *adapter) | |
999 | { | |
1000 | int err = 0; | |
1001 | struct net_device *netdev = adapter->netdev; | |
1002 | ||
1003 | if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) | |
1004 | return -EBUSY; | |
1005 | ||
1006 | if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) { | |
1007 | ||
1008 | netif_device_detach(netdev); | |
1009 | ||
1010 | if (netif_running(netdev)) | |
1011 | __qlcnic_down(adapter, netdev); | |
1012 | ||
1013 | qlcnic_detach(adapter); | |
1014 | ||
1015 | if (netif_running(netdev)) { | |
1016 | err = qlcnic_attach(adapter); | |
1017 | if (!err) | |
34ce3626 | 1018 | __qlcnic_up(adapter, netdev); |
af19b491 AKS |
1019 | } |
1020 | ||
1021 | netif_device_attach(netdev); | |
1022 | } | |
1023 | ||
af19b491 AKS |
1024 | clear_bit(__QLCNIC_RESETTING, &adapter->state); |
1025 | return err; | |
1026 | } | |
1027 | ||
1028 | static int | |
1029 | qlcnic_setup_netdev(struct qlcnic_adapter *adapter, | |
1030 | struct net_device *netdev) | |
1031 | { | |
1032 | int err; | |
1033 | struct pci_dev *pdev = adapter->pdev; | |
1034 | ||
1035 | adapter->rx_csum = 1; | |
1036 | adapter->mc_enabled = 0; | |
1037 | adapter->max_mc_count = 38; | |
1038 | ||
1039 | netdev->netdev_ops = &qlcnic_netdev_ops; | |
1040 | netdev->watchdog_timeo = 2*HZ; | |
1041 | ||
1042 | qlcnic_change_mtu(netdev, netdev->mtu); | |
1043 | ||
1044 | SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops); | |
1045 | ||
1046 | netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO); | |
1047 | netdev->features |= (NETIF_F_GRO); | |
1048 | netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO); | |
1049 | ||
1050 | netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6); | |
1051 | netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6); | |
1052 | ||
1053 | if (adapter->pci_using_dac) { | |
1054 | netdev->features |= NETIF_F_HIGHDMA; | |
1055 | netdev->vlan_features |= NETIF_F_HIGHDMA; | |
1056 | } | |
1057 | ||
1058 | if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX) | |
1059 | netdev->features |= (NETIF_F_HW_VLAN_TX); | |
1060 | ||
1061 | if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO) | |
1062 | netdev->features |= NETIF_F_LRO; | |
1063 | ||
1064 | netdev->irq = adapter->msix_entries[0].vector; | |
1065 | ||
1066 | INIT_WORK(&adapter->tx_timeout_task, qlcnic_tx_timeout_task); | |
1067 | ||
1068 | if (qlcnic_read_mac_addr(adapter)) | |
1069 | dev_warn(&pdev->dev, "failed to read mac addr\n"); | |
1070 | ||
1071 | netif_carrier_off(netdev); | |
1072 | netif_stop_queue(netdev); | |
1073 | ||
1074 | err = register_netdev(netdev); | |
1075 | if (err) { | |
1076 | dev_err(&pdev->dev, "failed to register net device\n"); | |
1077 | return err; | |
1078 | } | |
1079 | ||
1080 | return 0; | |
1081 | } | |
1082 | ||
1083 | static int __devinit | |
1084 | qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
1085 | { | |
1086 | struct net_device *netdev = NULL; | |
1087 | struct qlcnic_adapter *adapter = NULL; | |
1088 | int err; | |
1089 | int pci_func_id = PCI_FUNC(pdev->devfn); | |
1090 | uint8_t revision_id; | |
1091 | ||
1092 | err = pci_enable_device(pdev); | |
1093 | if (err) | |
1094 | return err; | |
1095 | ||
1096 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { | |
1097 | err = -ENODEV; | |
1098 | goto err_out_disable_pdev; | |
1099 | } | |
1100 | ||
1101 | err = pci_request_regions(pdev, qlcnic_driver_name); | |
1102 | if (err) | |
1103 | goto err_out_disable_pdev; | |
1104 | ||
1105 | pci_set_master(pdev); | |
1106 | ||
1107 | netdev = alloc_etherdev(sizeof(struct qlcnic_adapter)); | |
1108 | if (!netdev) { | |
1109 | dev_err(&pdev->dev, "failed to allocate net_device\n"); | |
1110 | err = -ENOMEM; | |
1111 | goto err_out_free_res; | |
1112 | } | |
1113 | ||
1114 | SET_NETDEV_DEV(netdev, &pdev->dev); | |
1115 | ||
1116 | adapter = netdev_priv(netdev); | |
1117 | adapter->netdev = netdev; | |
1118 | adapter->pdev = pdev; | |
1119 | adapter->ahw.pci_func = pci_func_id; | |
1120 | ||
1121 | revision_id = pdev->revision; | |
1122 | adapter->ahw.revision_id = revision_id; | |
1123 | ||
1124 | rwlock_init(&adapter->ahw.crb_lock); | |
1125 | mutex_init(&adapter->ahw.mem_lock); | |
1126 | ||
1127 | spin_lock_init(&adapter->tx_clean_lock); | |
1128 | INIT_LIST_HEAD(&adapter->mac_list); | |
1129 | ||
1130 | err = qlcnic_setup_pci_map(adapter); | |
1131 | if (err) | |
1132 | goto err_out_free_netdev; | |
1133 | ||
1134 | /* This will be reset for mezz cards */ | |
1135 | adapter->portnum = pci_func_id; | |
1136 | ||
1137 | err = qlcnic_get_board_info(adapter); | |
1138 | if (err) { | |
1139 | dev_err(&pdev->dev, "Error getting board config info.\n"); | |
1140 | goto err_out_iounmap; | |
1141 | } | |
1142 | ||
aa5e18c0 | 1143 | qlcnic_setup_idc_param(adapter); |
af19b491 AKS |
1144 | |
1145 | err = qlcnic_start_firmware(adapter); | |
1146 | if (err) | |
1147 | goto err_out_decr_ref; | |
1148 | ||
1149 | /* | |
1150 | * See if the firmware gave us a virtual-physical port mapping. | |
1151 | */ | |
1152 | adapter->physical_port = adapter->portnum; | |
1153 | ||
1154 | qlcnic_clear_stats(adapter); | |
1155 | ||
1156 | qlcnic_setup_intr(adapter); | |
1157 | ||
1158 | err = qlcnic_setup_netdev(adapter, netdev); | |
1159 | if (err) | |
1160 | goto err_out_disable_msi; | |
1161 | ||
1162 | pci_set_drvdata(pdev, adapter); | |
1163 | ||
1164 | qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); | |
1165 | ||
1166 | switch (adapter->ahw.port_type) { | |
1167 | case QLCNIC_GBE: | |
1168 | dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", | |
1169 | adapter->netdev->name); | |
1170 | break; | |
1171 | case QLCNIC_XGBE: | |
1172 | dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", | |
1173 | adapter->netdev->name); | |
1174 | break; | |
1175 | } | |
1176 | ||
1177 | qlcnic_create_diag_entries(adapter); | |
1178 | ||
1179 | return 0; | |
1180 | ||
1181 | err_out_disable_msi: | |
1182 | qlcnic_teardown_intr(adapter); | |
1183 | ||
1184 | err_out_decr_ref: | |
1185 | qlcnic_clr_all_drv_state(adapter); | |
1186 | ||
1187 | err_out_iounmap: | |
1188 | qlcnic_cleanup_pci_map(adapter); | |
1189 | ||
1190 | err_out_free_netdev: | |
1191 | free_netdev(netdev); | |
1192 | ||
1193 | err_out_free_res: | |
1194 | pci_release_regions(pdev); | |
1195 | ||
1196 | err_out_disable_pdev: | |
1197 | pci_set_drvdata(pdev, NULL); | |
1198 | pci_disable_device(pdev); | |
1199 | return err; | |
1200 | } | |
1201 | ||
1202 | static void __devexit qlcnic_remove(struct pci_dev *pdev) | |
1203 | { | |
1204 | struct qlcnic_adapter *adapter; | |
1205 | struct net_device *netdev; | |
1206 | ||
1207 | adapter = pci_get_drvdata(pdev); | |
1208 | if (adapter == NULL) | |
1209 | return; | |
1210 | ||
1211 | netdev = adapter->netdev; | |
1212 | ||
1213 | qlcnic_cancel_fw_work(adapter); | |
1214 | ||
1215 | unregister_netdev(netdev); | |
1216 | ||
1217 | cancel_work_sync(&adapter->tx_timeout_task); | |
1218 | ||
1219 | qlcnic_detach(adapter); | |
1220 | ||
1221 | qlcnic_clr_all_drv_state(adapter); | |
1222 | ||
1223 | clear_bit(__QLCNIC_RESETTING, &adapter->state); | |
1224 | ||
1225 | qlcnic_teardown_intr(adapter); | |
1226 | ||
1227 | qlcnic_remove_diag_entries(adapter); | |
1228 | ||
1229 | qlcnic_cleanup_pci_map(adapter); | |
1230 | ||
1231 | qlcnic_release_firmware(adapter); | |
1232 | ||
1233 | pci_release_regions(pdev); | |
1234 | pci_disable_device(pdev); | |
1235 | pci_set_drvdata(pdev, NULL); | |
1236 | ||
1237 | free_netdev(netdev); | |
1238 | } | |
1239 | static int __qlcnic_shutdown(struct pci_dev *pdev) | |
1240 | { | |
1241 | struct qlcnic_adapter *adapter = pci_get_drvdata(pdev); | |
1242 | struct net_device *netdev = adapter->netdev; | |
1243 | int retval; | |
1244 | ||
1245 | netif_device_detach(netdev); | |
1246 | ||
1247 | qlcnic_cancel_fw_work(adapter); | |
1248 | ||
1249 | if (netif_running(netdev)) | |
1250 | qlcnic_down(adapter, netdev); | |
1251 | ||
1252 | cancel_work_sync(&adapter->tx_timeout_task); | |
1253 | ||
1254 | qlcnic_detach(adapter); | |
1255 | ||
1256 | qlcnic_clr_all_drv_state(adapter); | |
1257 | ||
1258 | clear_bit(__QLCNIC_RESETTING, &adapter->state); | |
1259 | ||
1260 | retval = pci_save_state(pdev); | |
1261 | if (retval) | |
1262 | return retval; | |
1263 | ||
1264 | if (qlcnic_wol_supported(adapter)) { | |
1265 | pci_enable_wake(pdev, PCI_D3cold, 1); | |
1266 | pci_enable_wake(pdev, PCI_D3hot, 1); | |
1267 | } | |
1268 | ||
1269 | return 0; | |
1270 | } | |
1271 | ||
1272 | static void qlcnic_shutdown(struct pci_dev *pdev) | |
1273 | { | |
1274 | if (__qlcnic_shutdown(pdev)) | |
1275 | return; | |
1276 | ||
1277 | pci_disable_device(pdev); | |
1278 | } | |
1279 | ||
1280 | #ifdef CONFIG_PM | |
1281 | static int | |
1282 | qlcnic_suspend(struct pci_dev *pdev, pm_message_t state) | |
1283 | { | |
1284 | int retval; | |
1285 | ||
1286 | retval = __qlcnic_shutdown(pdev); | |
1287 | if (retval) | |
1288 | return retval; | |
1289 | ||
1290 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
1291 | return 0; | |
1292 | } | |
1293 | ||
1294 | static int | |
1295 | qlcnic_resume(struct pci_dev *pdev) | |
1296 | { | |
1297 | struct qlcnic_adapter *adapter = pci_get_drvdata(pdev); | |
1298 | struct net_device *netdev = adapter->netdev; | |
1299 | int err; | |
1300 | ||
1301 | err = pci_enable_device(pdev); | |
1302 | if (err) | |
1303 | return err; | |
1304 | ||
1305 | pci_set_power_state(pdev, PCI_D0); | |
1306 | pci_set_master(pdev); | |
1307 | pci_restore_state(pdev); | |
1308 | ||
1309 | adapter->ahw.crb_win = -1; | |
1310 | adapter->ahw.ocm_win = -1; | |
1311 | ||
1312 | err = qlcnic_start_firmware(adapter); | |
1313 | if (err) { | |
1314 | dev_err(&pdev->dev, "failed to start firmware\n"); | |
1315 | return err; | |
1316 | } | |
1317 | ||
1318 | if (netif_running(netdev)) { | |
1319 | err = qlcnic_attach(adapter); | |
1320 | if (err) | |
1321 | goto err_out; | |
1322 | ||
1323 | err = qlcnic_up(adapter, netdev); | |
1324 | if (err) | |
1325 | goto err_out_detach; | |
1326 | ||
1327 | ||
1328 | qlcnic_config_indev_addr(netdev, NETDEV_UP); | |
1329 | } | |
1330 | ||
1331 | netif_device_attach(netdev); | |
1332 | qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); | |
1333 | return 0; | |
1334 | ||
1335 | err_out_detach: | |
1336 | qlcnic_detach(adapter); | |
1337 | err_out: | |
1338 | qlcnic_clr_all_drv_state(adapter); | |
34ce3626 | 1339 | netif_device_attach(netdev); |
af19b491 AKS |
1340 | return err; |
1341 | } | |
1342 | #endif | |
1343 | ||
1344 | static int qlcnic_open(struct net_device *netdev) | |
1345 | { | |
1346 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
1347 | int err; | |
1348 | ||
1349 | if (adapter->driver_mismatch) | |
1350 | return -EIO; | |
1351 | ||
1352 | err = qlcnic_attach(adapter); | |
1353 | if (err) | |
1354 | return err; | |
1355 | ||
1356 | err = __qlcnic_up(adapter, netdev); | |
1357 | if (err) | |
1358 | goto err_out; | |
1359 | ||
1360 | netif_start_queue(netdev); | |
1361 | ||
1362 | return 0; | |
1363 | ||
1364 | err_out: | |
1365 | qlcnic_detach(adapter); | |
1366 | return err; | |
1367 | } | |
1368 | ||
1369 | /* | |
1370 | * qlcnic_close - Disables a network interface entry point | |
1371 | */ | |
1372 | static int qlcnic_close(struct net_device *netdev) | |
1373 | { | |
1374 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
1375 | ||
1376 | __qlcnic_down(adapter, netdev); | |
1377 | return 0; | |
1378 | } | |
1379 | ||
1380 | static void | |
1381 | qlcnic_tso_check(struct net_device *netdev, | |
1382 | struct qlcnic_host_tx_ring *tx_ring, | |
1383 | struct cmd_desc_type0 *first_desc, | |
1384 | struct sk_buff *skb) | |
1385 | { | |
1386 | u8 opcode = TX_ETHER_PKT; | |
1387 | __be16 protocol = skb->protocol; | |
1388 | u16 flags = 0, vid = 0; | |
1389 | u32 producer; | |
1390 | int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0; | |
1391 | struct cmd_desc_type0 *hwdesc; | |
1392 | struct vlan_ethhdr *vh; | |
8bfe8b91 | 1393 | struct qlcnic_adapter *adapter = netdev_priv(netdev); |
af19b491 AKS |
1394 | |
1395 | if (protocol == cpu_to_be16(ETH_P_8021Q)) { | |
1396 | ||
1397 | vh = (struct vlan_ethhdr *)skb->data; | |
1398 | protocol = vh->h_vlan_encapsulated_proto; | |
1399 | flags = FLAGS_VLAN_TAGGED; | |
1400 | ||
1401 | } else if (vlan_tx_tag_present(skb)) { | |
1402 | ||
1403 | flags = FLAGS_VLAN_OOB; | |
1404 | vid = vlan_tx_tag_get(skb); | |
1405 | qlcnic_set_tx_vlan_tci(first_desc, vid); | |
1406 | vlan_oob = 1; | |
1407 | } | |
1408 | ||
1409 | if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && | |
1410 | skb_shinfo(skb)->gso_size > 0) { | |
1411 | ||
1412 | hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); | |
1413 | ||
1414 | first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); | |
1415 | first_desc->total_hdr_length = hdr_len; | |
1416 | if (vlan_oob) { | |
1417 | first_desc->total_hdr_length += VLAN_HLEN; | |
1418 | first_desc->tcp_hdr_offset = VLAN_HLEN; | |
1419 | first_desc->ip_hdr_offset = VLAN_HLEN; | |
1420 | /* Only in case of TSO on vlan device */ | |
1421 | flags |= FLAGS_VLAN_TAGGED; | |
1422 | } | |
1423 | ||
1424 | opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ? | |
1425 | TX_TCP_LSO6 : TX_TCP_LSO; | |
1426 | tso = 1; | |
1427 | ||
1428 | } else if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
1429 | u8 l4proto; | |
1430 | ||
1431 | if (protocol == cpu_to_be16(ETH_P_IP)) { | |
1432 | l4proto = ip_hdr(skb)->protocol; | |
1433 | ||
1434 | if (l4proto == IPPROTO_TCP) | |
1435 | opcode = TX_TCP_PKT; | |
1436 | else if (l4proto == IPPROTO_UDP) | |
1437 | opcode = TX_UDP_PKT; | |
1438 | } else if (protocol == cpu_to_be16(ETH_P_IPV6)) { | |
1439 | l4proto = ipv6_hdr(skb)->nexthdr; | |
1440 | ||
1441 | if (l4proto == IPPROTO_TCP) | |
1442 | opcode = TX_TCPV6_PKT; | |
1443 | else if (l4proto == IPPROTO_UDP) | |
1444 | opcode = TX_UDPV6_PKT; | |
1445 | } | |
1446 | } | |
1447 | ||
1448 | first_desc->tcp_hdr_offset += skb_transport_offset(skb); | |
1449 | first_desc->ip_hdr_offset += skb_network_offset(skb); | |
1450 | qlcnic_set_tx_flags_opcode(first_desc, flags, opcode); | |
1451 | ||
1452 | if (!tso) | |
1453 | return; | |
1454 | ||
1455 | /* For LSO, we need to copy the MAC/IP/TCP headers into | |
1456 | * the descriptor ring | |
1457 | */ | |
1458 | producer = tx_ring->producer; | |
1459 | copied = 0; | |
1460 | offset = 2; | |
1461 | ||
1462 | if (vlan_oob) { | |
1463 | /* Create a TSO vlan header template for firmware */ | |
1464 | ||
1465 | hwdesc = &tx_ring->desc_head[producer]; | |
1466 | tx_ring->cmd_buf_arr[producer].skb = NULL; | |
1467 | ||
1468 | copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, | |
1469 | hdr_len + VLAN_HLEN); | |
1470 | ||
1471 | vh = (struct vlan_ethhdr *)((char *)hwdesc + 2); | |
1472 | skb_copy_from_linear_data(skb, vh, 12); | |
1473 | vh->h_vlan_proto = htons(ETH_P_8021Q); | |
1474 | vh->h_vlan_TCI = htons(vid); | |
1475 | skb_copy_from_linear_data_offset(skb, 12, | |
1476 | (char *)vh + 16, copy_len - 16); | |
1477 | ||
1478 | copied = copy_len - VLAN_HLEN; | |
1479 | offset = 0; | |
1480 | ||
1481 | producer = get_next_index(producer, tx_ring->num_desc); | |
1482 | } | |
1483 | ||
1484 | while (copied < hdr_len) { | |
1485 | ||
1486 | copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, | |
1487 | (hdr_len - copied)); | |
1488 | ||
1489 | hwdesc = &tx_ring->desc_head[producer]; | |
1490 | tx_ring->cmd_buf_arr[producer].skb = NULL; | |
1491 | ||
1492 | skb_copy_from_linear_data_offset(skb, copied, | |
1493 | (char *)hwdesc + offset, copy_len); | |
1494 | ||
1495 | copied += copy_len; | |
1496 | offset = 0; | |
1497 | ||
1498 | producer = get_next_index(producer, tx_ring->num_desc); | |
1499 | } | |
1500 | ||
1501 | tx_ring->producer = producer; | |
1502 | barrier(); | |
8bfe8b91 | 1503 | adapter->stats.lso_frames++; |
af19b491 AKS |
1504 | } |
1505 | ||
1506 | static int | |
1507 | qlcnic_map_tx_skb(struct pci_dev *pdev, | |
1508 | struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf) | |
1509 | { | |
1510 | struct qlcnic_skb_frag *nf; | |
1511 | struct skb_frag_struct *frag; | |
1512 | int i, nr_frags; | |
1513 | dma_addr_t map; | |
1514 | ||
1515 | nr_frags = skb_shinfo(skb)->nr_frags; | |
1516 | nf = &pbuf->frag_array[0]; | |
1517 | ||
1518 | map = pci_map_single(pdev, skb->data, | |
1519 | skb_headlen(skb), PCI_DMA_TODEVICE); | |
1520 | if (pci_dma_mapping_error(pdev, map)) | |
1521 | goto out_err; | |
1522 | ||
1523 | nf->dma = map; | |
1524 | nf->length = skb_headlen(skb); | |
1525 | ||
1526 | for (i = 0; i < nr_frags; i++) { | |
1527 | frag = &skb_shinfo(skb)->frags[i]; | |
1528 | nf = &pbuf->frag_array[i+1]; | |
1529 | ||
1530 | map = pci_map_page(pdev, frag->page, frag->page_offset, | |
1531 | frag->size, PCI_DMA_TODEVICE); | |
1532 | if (pci_dma_mapping_error(pdev, map)) | |
1533 | goto unwind; | |
1534 | ||
1535 | nf->dma = map; | |
1536 | nf->length = frag->size; | |
1537 | } | |
1538 | ||
1539 | return 0; | |
1540 | ||
1541 | unwind: | |
1542 | while (--i >= 0) { | |
1543 | nf = &pbuf->frag_array[i+1]; | |
1544 | pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); | |
1545 | } | |
1546 | ||
1547 | nf = &pbuf->frag_array[0]; | |
1548 | pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); | |
1549 | ||
1550 | out_err: | |
1551 | return -ENOMEM; | |
1552 | } | |
1553 | ||
1554 | static inline void | |
1555 | qlcnic_clear_cmddesc(u64 *desc) | |
1556 | { | |
1557 | desc[0] = 0ULL; | |
1558 | desc[2] = 0ULL; | |
1559 | } | |
1560 | ||
cdaff185 | 1561 | netdev_tx_t |
af19b491 AKS |
1562 | qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) |
1563 | { | |
1564 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
1565 | struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring; | |
1566 | struct qlcnic_cmd_buffer *pbuf; | |
1567 | struct qlcnic_skb_frag *buffrag; | |
1568 | struct cmd_desc_type0 *hwdesc, *first_desc; | |
1569 | struct pci_dev *pdev; | |
1570 | int i, k; | |
1571 | ||
1572 | u32 producer; | |
1573 | int frag_count, no_of_desc; | |
1574 | u32 num_txd = tx_ring->num_desc; | |
1575 | ||
1576 | frag_count = skb_shinfo(skb)->nr_frags + 1; | |
1577 | ||
1578 | /* 4 fragments per cmd des */ | |
1579 | no_of_desc = (frag_count + 3) >> 2; | |
1580 | ||
1581 | if (unlikely(no_of_desc + 2 > qlcnic_tx_avail(tx_ring))) { | |
1582 | netif_stop_queue(netdev); | |
8bfe8b91 | 1583 | adapter->stats.xmit_off++; |
af19b491 AKS |
1584 | return NETDEV_TX_BUSY; |
1585 | } | |
1586 | ||
1587 | producer = tx_ring->producer; | |
1588 | pbuf = &tx_ring->cmd_buf_arr[producer]; | |
1589 | ||
1590 | pdev = adapter->pdev; | |
1591 | ||
8ae6df97 AKS |
1592 | if (qlcnic_map_tx_skb(pdev, skb, pbuf)) { |
1593 | adapter->stats.tx_dma_map_error++; | |
af19b491 | 1594 | goto drop_packet; |
8ae6df97 | 1595 | } |
af19b491 AKS |
1596 | |
1597 | pbuf->skb = skb; | |
1598 | pbuf->frag_count = frag_count; | |
1599 | ||
1600 | first_desc = hwdesc = &tx_ring->desc_head[producer]; | |
1601 | qlcnic_clear_cmddesc((u64 *)hwdesc); | |
1602 | ||
1603 | qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len); | |
1604 | qlcnic_set_tx_port(first_desc, adapter->portnum); | |
1605 | ||
1606 | for (i = 0; i < frag_count; i++) { | |
1607 | ||
1608 | k = i % 4; | |
1609 | ||
1610 | if ((k == 0) && (i > 0)) { | |
1611 | /* move to next desc.*/ | |
1612 | producer = get_next_index(producer, num_txd); | |
1613 | hwdesc = &tx_ring->desc_head[producer]; | |
1614 | qlcnic_clear_cmddesc((u64 *)hwdesc); | |
1615 | tx_ring->cmd_buf_arr[producer].skb = NULL; | |
1616 | } | |
1617 | ||
1618 | buffrag = &pbuf->frag_array[i]; | |
1619 | ||
1620 | hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length); | |
1621 | switch (k) { | |
1622 | case 0: | |
1623 | hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); | |
1624 | break; | |
1625 | case 1: | |
1626 | hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma); | |
1627 | break; | |
1628 | case 2: | |
1629 | hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma); | |
1630 | break; | |
1631 | case 3: | |
1632 | hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma); | |
1633 | break; | |
1634 | } | |
1635 | } | |
1636 | ||
1637 | tx_ring->producer = get_next_index(producer, num_txd); | |
1638 | ||
1639 | qlcnic_tso_check(netdev, tx_ring, first_desc, skb); | |
1640 | ||
1641 | qlcnic_update_cmd_producer(adapter, tx_ring); | |
1642 | ||
1643 | adapter->stats.txbytes += skb->len; | |
1644 | adapter->stats.xmitcalled++; | |
1645 | ||
1646 | return NETDEV_TX_OK; | |
1647 | ||
1648 | drop_packet: | |
1649 | adapter->stats.txdropped++; | |
1650 | dev_kfree_skb_any(skb); | |
1651 | return NETDEV_TX_OK; | |
1652 | } | |
1653 | ||
1654 | static int qlcnic_check_temp(struct qlcnic_adapter *adapter) | |
1655 | { | |
1656 | struct net_device *netdev = adapter->netdev; | |
1657 | u32 temp, temp_state, temp_val; | |
1658 | int rv = 0; | |
1659 | ||
1660 | temp = QLCRD32(adapter, CRB_TEMP_STATE); | |
1661 | ||
1662 | temp_state = qlcnic_get_temp_state(temp); | |
1663 | temp_val = qlcnic_get_temp_val(temp); | |
1664 | ||
1665 | if (temp_state == QLCNIC_TEMP_PANIC) { | |
1666 | dev_err(&netdev->dev, | |
1667 | "Device temperature %d degrees C exceeds" | |
1668 | " maximum allowed. Hardware has been shut down.\n", | |
1669 | temp_val); | |
1670 | rv = 1; | |
1671 | } else if (temp_state == QLCNIC_TEMP_WARN) { | |
1672 | if (adapter->temp == QLCNIC_TEMP_NORMAL) { | |
1673 | dev_err(&netdev->dev, | |
1674 | "Device temperature %d degrees C " | |
1675 | "exceeds operating range." | |
1676 | " Immediate action needed.\n", | |
1677 | temp_val); | |
1678 | } | |
1679 | } else { | |
1680 | if (adapter->temp == QLCNIC_TEMP_WARN) { | |
1681 | dev_info(&netdev->dev, | |
1682 | "Device temperature is now %d degrees C" | |
1683 | " in normal range.\n", temp_val); | |
1684 | } | |
1685 | } | |
1686 | adapter->temp = temp_state; | |
1687 | return rv; | |
1688 | } | |
1689 | ||
1690 | void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup) | |
1691 | { | |
1692 | struct net_device *netdev = adapter->netdev; | |
1693 | ||
1694 | if (adapter->ahw.linkup && !linkup) { | |
1695 | dev_info(&netdev->dev, "NIC Link is down\n"); | |
1696 | adapter->ahw.linkup = 0; | |
1697 | if (netif_running(netdev)) { | |
1698 | netif_carrier_off(netdev); | |
1699 | netif_stop_queue(netdev); | |
1700 | } | |
1701 | } else if (!adapter->ahw.linkup && linkup) { | |
1702 | dev_info(&netdev->dev, "NIC Link is up\n"); | |
1703 | adapter->ahw.linkup = 1; | |
1704 | if (netif_running(netdev)) { | |
1705 | netif_carrier_on(netdev); | |
1706 | netif_wake_queue(netdev); | |
1707 | } | |
1708 | } | |
1709 | } | |
1710 | ||
1711 | static void qlcnic_tx_timeout(struct net_device *netdev) | |
1712 | { | |
1713 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
1714 | ||
1715 | if (test_bit(__QLCNIC_RESETTING, &adapter->state)) | |
1716 | return; | |
1717 | ||
1718 | dev_err(&netdev->dev, "transmit timeout, resetting.\n"); | |
1719 | schedule_work(&adapter->tx_timeout_task); | |
1720 | } | |
1721 | ||
1722 | static void qlcnic_tx_timeout_task(struct work_struct *work) | |
1723 | { | |
1724 | struct qlcnic_adapter *adapter = | |
1725 | container_of(work, struct qlcnic_adapter, tx_timeout_task); | |
1726 | ||
1727 | if (!netif_running(adapter->netdev)) | |
1728 | return; | |
1729 | ||
1730 | if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) | |
1731 | return; | |
1732 | ||
1733 | if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) | |
1734 | goto request_reset; | |
1735 | ||
1736 | clear_bit(__QLCNIC_RESETTING, &adapter->state); | |
1737 | if (!qlcnic_reset_context(adapter)) { | |
1738 | adapter->netdev->trans_start = jiffies; | |
1739 | return; | |
1740 | ||
1741 | /* context reset failed, fall through for fw reset */ | |
1742 | } | |
1743 | ||
1744 | request_reset: | |
1745 | adapter->need_fw_reset = 1; | |
1746 | clear_bit(__QLCNIC_RESETTING, &adapter->state); | |
65b5b420 | 1747 | QLCDB(adapter, DRV, "Resetting adapter\n"); |
af19b491 AKS |
1748 | } |
1749 | ||
1750 | static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev) | |
1751 | { | |
1752 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
1753 | struct net_device_stats *stats = &netdev->stats; | |
1754 | ||
1755 | memset(stats, 0, sizeof(*stats)); | |
1756 | ||
1757 | stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts; | |
1758 | stats->tx_packets = adapter->stats.xmitfinished; | |
1759 | stats->rx_bytes = adapter->stats.rxbytes; | |
1760 | stats->tx_bytes = adapter->stats.txbytes; | |
1761 | stats->rx_dropped = adapter->stats.rxdropped; | |
1762 | stats->tx_dropped = adapter->stats.txdropped; | |
1763 | ||
1764 | return stats; | |
1765 | } | |
1766 | ||
7eb9855d | 1767 | static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter) |
af19b491 | 1768 | { |
af19b491 AKS |
1769 | u32 status; |
1770 | ||
1771 | status = readl(adapter->isr_int_vec); | |
1772 | ||
1773 | if (!(status & adapter->int_vec_bit)) | |
1774 | return IRQ_NONE; | |
1775 | ||
1776 | /* check interrupt state machine, to be sure */ | |
1777 | status = readl(adapter->crb_int_state_reg); | |
1778 | if (!ISR_LEGACY_INT_TRIGGERED(status)) | |
1779 | return IRQ_NONE; | |
1780 | ||
1781 | writel(0xffffffff, adapter->tgt_status_reg); | |
1782 | /* read twice to ensure write is flushed */ | |
1783 | readl(adapter->isr_int_vec); | |
1784 | readl(adapter->isr_int_vec); | |
1785 | ||
7eb9855d AKS |
1786 | return IRQ_HANDLED; |
1787 | } | |
1788 | ||
1789 | static irqreturn_t qlcnic_tmp_intr(int irq, void *data) | |
1790 | { | |
1791 | struct qlcnic_host_sds_ring *sds_ring = data; | |
1792 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
1793 | ||
1794 | if (adapter->flags & QLCNIC_MSIX_ENABLED) | |
1795 | goto done; | |
1796 | else if (adapter->flags & QLCNIC_MSI_ENABLED) { | |
1797 | writel(0xffffffff, adapter->tgt_status_reg); | |
1798 | goto done; | |
1799 | } | |
1800 | ||
1801 | if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE) | |
1802 | return IRQ_NONE; | |
1803 | ||
1804 | done: | |
1805 | adapter->diag_cnt++; | |
1806 | qlcnic_enable_int(sds_ring); | |
1807 | return IRQ_HANDLED; | |
1808 | } | |
1809 | ||
1810 | static irqreturn_t qlcnic_intr(int irq, void *data) | |
1811 | { | |
1812 | struct qlcnic_host_sds_ring *sds_ring = data; | |
1813 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
1814 | ||
1815 | if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE) | |
1816 | return IRQ_NONE; | |
1817 | ||
af19b491 AKS |
1818 | napi_schedule(&sds_ring->napi); |
1819 | ||
1820 | return IRQ_HANDLED; | |
1821 | } | |
1822 | ||
1823 | static irqreturn_t qlcnic_msi_intr(int irq, void *data) | |
1824 | { | |
1825 | struct qlcnic_host_sds_ring *sds_ring = data; | |
1826 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
1827 | ||
1828 | /* clear interrupt */ | |
1829 | writel(0xffffffff, adapter->tgt_status_reg); | |
1830 | ||
1831 | napi_schedule(&sds_ring->napi); | |
1832 | return IRQ_HANDLED; | |
1833 | } | |
1834 | ||
1835 | static irqreturn_t qlcnic_msix_intr(int irq, void *data) | |
1836 | { | |
1837 | struct qlcnic_host_sds_ring *sds_ring = data; | |
1838 | ||
1839 | napi_schedule(&sds_ring->napi); | |
1840 | return IRQ_HANDLED; | |
1841 | } | |
1842 | ||
1843 | static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter) | |
1844 | { | |
1845 | u32 sw_consumer, hw_consumer; | |
1846 | int count = 0, i; | |
1847 | struct qlcnic_cmd_buffer *buffer; | |
1848 | struct pci_dev *pdev = adapter->pdev; | |
1849 | struct net_device *netdev = adapter->netdev; | |
1850 | struct qlcnic_skb_frag *frag; | |
1851 | int done; | |
1852 | struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring; | |
1853 | ||
1854 | if (!spin_trylock(&adapter->tx_clean_lock)) | |
1855 | return 1; | |
1856 | ||
1857 | sw_consumer = tx_ring->sw_consumer; | |
1858 | hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); | |
1859 | ||
1860 | while (sw_consumer != hw_consumer) { | |
1861 | buffer = &tx_ring->cmd_buf_arr[sw_consumer]; | |
1862 | if (buffer->skb) { | |
1863 | frag = &buffer->frag_array[0]; | |
1864 | pci_unmap_single(pdev, frag->dma, frag->length, | |
1865 | PCI_DMA_TODEVICE); | |
1866 | frag->dma = 0ULL; | |
1867 | for (i = 1; i < buffer->frag_count; i++) { | |
1868 | frag++; | |
1869 | pci_unmap_page(pdev, frag->dma, frag->length, | |
1870 | PCI_DMA_TODEVICE); | |
1871 | frag->dma = 0ULL; | |
1872 | } | |
1873 | ||
1874 | adapter->stats.xmitfinished++; | |
1875 | dev_kfree_skb_any(buffer->skb); | |
1876 | buffer->skb = NULL; | |
1877 | } | |
1878 | ||
1879 | sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc); | |
1880 | if (++count >= MAX_STATUS_HANDLE) | |
1881 | break; | |
1882 | } | |
1883 | ||
1884 | if (count && netif_running(netdev)) { | |
1885 | tx_ring->sw_consumer = sw_consumer; | |
1886 | ||
1887 | smp_mb(); | |
1888 | ||
1889 | if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) { | |
1890 | __netif_tx_lock(tx_ring->txq, smp_processor_id()); | |
1891 | if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) { | |
1892 | netif_wake_queue(netdev); | |
1893 | adapter->tx_timeo_cnt = 0; | |
8bfe8b91 | 1894 | adapter->stats.xmit_on++; |
af19b491 AKS |
1895 | } |
1896 | __netif_tx_unlock(tx_ring->txq); | |
1897 | } | |
1898 | } | |
1899 | /* | |
1900 | * If everything is freed up to consumer then check if the ring is full | |
1901 | * If the ring is full then check if more needs to be freed and | |
1902 | * schedule the call back again. | |
1903 | * | |
1904 | * This happens when there are 2 CPUs. One could be freeing and the | |
1905 | * other filling it. If the ring is full when we get out of here and | |
1906 | * the card has already interrupted the host then the host can miss the | |
1907 | * interrupt. | |
1908 | * | |
1909 | * There is still a possible race condition and the host could miss an | |
1910 | * interrupt. The card has to take care of this. | |
1911 | */ | |
1912 | hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); | |
1913 | done = (sw_consumer == hw_consumer); | |
1914 | spin_unlock(&adapter->tx_clean_lock); | |
1915 | ||
1916 | return done; | |
1917 | } | |
1918 | ||
1919 | static int qlcnic_poll(struct napi_struct *napi, int budget) | |
1920 | { | |
1921 | struct qlcnic_host_sds_ring *sds_ring = | |
1922 | container_of(napi, struct qlcnic_host_sds_ring, napi); | |
1923 | ||
1924 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
1925 | ||
1926 | int tx_complete; | |
1927 | int work_done; | |
1928 | ||
1929 | tx_complete = qlcnic_process_cmd_ring(adapter); | |
1930 | ||
1931 | work_done = qlcnic_process_rcv_ring(sds_ring, budget); | |
1932 | ||
1933 | if ((work_done < budget) && tx_complete) { | |
1934 | napi_complete(&sds_ring->napi); | |
1935 | if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) | |
1936 | qlcnic_enable_int(sds_ring); | |
1937 | } | |
1938 | ||
1939 | return work_done; | |
1940 | } | |
1941 | ||
1942 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1943 | static void qlcnic_poll_controller(struct net_device *netdev) | |
1944 | { | |
1945 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
1946 | disable_irq(adapter->irq); | |
1947 | qlcnic_intr(adapter->irq, adapter); | |
1948 | enable_irq(adapter->irq); | |
1949 | } | |
1950 | #endif | |
1951 | ||
ade91f8e AKS |
1952 | static int |
1953 | qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state) | |
af19b491 AKS |
1954 | { |
1955 | u32 val; | |
1956 | ||
1957 | WARN_ON(state != QLCNIC_DEV_NEED_RESET && | |
1958 | state != QLCNIC_DEV_NEED_QUISCENT); | |
1959 | ||
1960 | if (qlcnic_api_lock(adapter)) | |
ade91f8e | 1961 | return -EIO; |
af19b491 AKS |
1962 | |
1963 | val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
1964 | ||
1965 | if (state == QLCNIC_DEV_NEED_RESET) | |
6d2a4724 | 1966 | QLC_DEV_SET_RST_RDY(val, adapter->portnum); |
af19b491 | 1967 | else if (state == QLCNIC_DEV_NEED_QUISCENT) |
6d2a4724 | 1968 | QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum); |
af19b491 AKS |
1969 | |
1970 | QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); | |
1971 | ||
1972 | qlcnic_api_unlock(adapter); | |
ade91f8e AKS |
1973 | |
1974 | return 0; | |
af19b491 AKS |
1975 | } |
1976 | ||
1b95a839 AKS |
1977 | static int |
1978 | qlcnic_clr_drv_state(struct qlcnic_adapter *adapter) | |
1979 | { | |
1980 | u32 val; | |
1981 | ||
1982 | if (qlcnic_api_lock(adapter)) | |
1983 | return -EBUSY; | |
1984 | ||
1985 | val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
6d2a4724 | 1986 | QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum); |
1b95a839 AKS |
1987 | QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); |
1988 | ||
1989 | qlcnic_api_unlock(adapter); | |
1990 | ||
1991 | return 0; | |
1992 | } | |
1993 | ||
af19b491 AKS |
1994 | static void |
1995 | qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter) | |
1996 | { | |
1997 | u32 val; | |
1998 | ||
1999 | if (qlcnic_api_lock(adapter)) | |
2000 | goto err; | |
2001 | ||
2002 | val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT); | |
6d2a4724 | 2003 | QLC_DEV_CLR_REF_CNT(val, adapter->portnum); |
af19b491 AKS |
2004 | QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val); |
2005 | ||
2006 | if (!(val & 0x11111111)) | |
2007 | QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD); | |
2008 | ||
2009 | val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
6d2a4724 | 2010 | QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum); |
af19b491 AKS |
2011 | QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); |
2012 | ||
2013 | qlcnic_api_unlock(adapter); | |
2014 | err: | |
2015 | adapter->fw_fail_cnt = 0; | |
2016 | clear_bit(__QLCNIC_START_FW, &adapter->state); | |
2017 | clear_bit(__QLCNIC_RESETTING, &adapter->state); | |
2018 | } | |
2019 | ||
f73dfc50 | 2020 | /* Grab api lock, before checking state */ |
af19b491 AKS |
2021 | static int |
2022 | qlcnic_check_drv_state(struct qlcnic_adapter *adapter) | |
2023 | { | |
2024 | int act, state; | |
2025 | ||
2026 | state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
2027 | act = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT); | |
2028 | ||
2029 | if (((state & 0x11111111) == (act & 0x11111111)) || | |
2030 | ((act & 0x11111111) == ((state >> 1) & 0x11111111))) | |
2031 | return 0; | |
2032 | else | |
2033 | return 1; | |
2034 | } | |
2035 | ||
2036 | static int | |
2037 | qlcnic_can_start_firmware(struct qlcnic_adapter *adapter) | |
2038 | { | |
2039 | u32 val, prev_state; | |
aa5e18c0 | 2040 | u8 dev_init_timeo = adapter->dev_init_timeo; |
6d2a4724 | 2041 | u8 portnum = adapter->portnum; |
af19b491 | 2042 | |
f73dfc50 AKS |
2043 | if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state)) |
2044 | return 1; | |
2045 | ||
af19b491 AKS |
2046 | if (qlcnic_api_lock(adapter)) |
2047 | return -1; | |
2048 | ||
2049 | val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT); | |
6d2a4724 AKS |
2050 | if (!(val & (1 << (portnum * 4)))) { |
2051 | QLC_DEV_SET_REF_CNT(val, portnum); | |
af19b491 | 2052 | QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val); |
af19b491 AKS |
2053 | } |
2054 | ||
2055 | prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); | |
65b5b420 | 2056 | QLCDB(adapter, HW, "Device state = %u\n", prev_state); |
af19b491 AKS |
2057 | |
2058 | switch (prev_state) { | |
2059 | case QLCNIC_DEV_COLD: | |
bbd8c6a4 | 2060 | QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING); |
af19b491 AKS |
2061 | qlcnic_api_unlock(adapter); |
2062 | return 1; | |
2063 | ||
2064 | case QLCNIC_DEV_READY: | |
2065 | qlcnic_api_unlock(adapter); | |
2066 | return 0; | |
2067 | ||
2068 | case QLCNIC_DEV_NEED_RESET: | |
2069 | val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
6d2a4724 | 2070 | QLC_DEV_SET_RST_RDY(val, portnum); |
af19b491 AKS |
2071 | QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); |
2072 | break; | |
2073 | ||
2074 | case QLCNIC_DEV_NEED_QUISCENT: | |
2075 | val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
6d2a4724 | 2076 | QLC_DEV_SET_QSCNT_RDY(val, portnum); |
af19b491 AKS |
2077 | QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); |
2078 | break; | |
2079 | ||
2080 | case QLCNIC_DEV_FAILED: | |
2081 | qlcnic_api_unlock(adapter); | |
2082 | return -1; | |
bbd8c6a4 AKS |
2083 | |
2084 | case QLCNIC_DEV_INITIALIZING: | |
2085 | case QLCNIC_DEV_QUISCENT: | |
2086 | break; | |
af19b491 AKS |
2087 | } |
2088 | ||
2089 | qlcnic_api_unlock(adapter); | |
aa5e18c0 SC |
2090 | |
2091 | do { | |
af19b491 | 2092 | msleep(1000); |
aa5e18c0 SC |
2093 | } while ((QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) != QLCNIC_DEV_READY) |
2094 | && --dev_init_timeo); | |
af19b491 | 2095 | |
65b5b420 AKS |
2096 | if (!dev_init_timeo) { |
2097 | dev_err(&adapter->pdev->dev, | |
2098 | "Waiting for device to initialize timeout\n"); | |
af19b491 | 2099 | return -1; |
65b5b420 | 2100 | } |
af19b491 AKS |
2101 | |
2102 | if (qlcnic_api_lock(adapter)) | |
2103 | return -1; | |
2104 | ||
2105 | val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
6d2a4724 | 2106 | QLC_DEV_CLR_RST_QSCNT(val, portnum); |
af19b491 AKS |
2107 | QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); |
2108 | ||
2109 | qlcnic_api_unlock(adapter); | |
2110 | ||
2111 | return 0; | |
2112 | } | |
2113 | ||
2114 | static void | |
2115 | qlcnic_fwinit_work(struct work_struct *work) | |
2116 | { | |
2117 | struct qlcnic_adapter *adapter = container_of(work, | |
2118 | struct qlcnic_adapter, fw_work.work); | |
f73dfc50 | 2119 | u32 dev_state = 0xf; |
af19b491 | 2120 | |
f73dfc50 AKS |
2121 | if (qlcnic_api_lock(adapter)) |
2122 | goto err_ret; | |
af19b491 | 2123 | |
f73dfc50 AKS |
2124 | if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) { |
2125 | dev_err(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n", | |
2126 | adapter->reset_ack_timeo); | |
2127 | goto skip_ack_check; | |
2128 | } | |
2129 | ||
2130 | if (!qlcnic_check_drv_state(adapter)) { | |
2131 | skip_ack_check: | |
2132 | dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); | |
2133 | if (dev_state == QLCNIC_DEV_NEED_RESET) { | |
2134 | QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, | |
2135 | QLCNIC_DEV_INITIALIZING); | |
2136 | set_bit(__QLCNIC_START_FW, &adapter->state); | |
2137 | QLCDB(adapter, DRV, "Restarting fw\n"); | |
af19b491 AKS |
2138 | } |
2139 | ||
f73dfc50 AKS |
2140 | qlcnic_api_unlock(adapter); |
2141 | ||
af19b491 AKS |
2142 | if (!qlcnic_start_firmware(adapter)) { |
2143 | qlcnic_schedule_work(adapter, qlcnic_attach_work, 0); | |
2144 | return; | |
2145 | } | |
af19b491 AKS |
2146 | goto err_ret; |
2147 | } | |
2148 | ||
f73dfc50 | 2149 | qlcnic_api_unlock(adapter); |
aa5e18c0 | 2150 | |
af19b491 | 2151 | dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); |
f73dfc50 | 2152 | QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state); |
65b5b420 | 2153 | |
af19b491 | 2154 | switch (dev_state) { |
f73dfc50 AKS |
2155 | case QLCNIC_DEV_NEED_RESET: |
2156 | qlcnic_schedule_work(adapter, | |
2157 | qlcnic_fwinit_work, FW_POLL_DELAY); | |
2158 | return; | |
af19b491 AKS |
2159 | case QLCNIC_DEV_FAILED: |
2160 | break; | |
2161 | ||
2162 | default: | |
f73dfc50 AKS |
2163 | if (!qlcnic_start_firmware(adapter)) { |
2164 | qlcnic_schedule_work(adapter, qlcnic_attach_work, 0); | |
2165 | return; | |
2166 | } | |
af19b491 AKS |
2167 | } |
2168 | ||
2169 | err_ret: | |
f73dfc50 AKS |
2170 | dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u " |
2171 | "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt); | |
34ce3626 | 2172 | netif_device_attach(adapter->netdev); |
af19b491 AKS |
2173 | qlcnic_clr_all_drv_state(adapter); |
2174 | } | |
2175 | ||
2176 | static void | |
2177 | qlcnic_detach_work(struct work_struct *work) | |
2178 | { | |
2179 | struct qlcnic_adapter *adapter = container_of(work, | |
2180 | struct qlcnic_adapter, fw_work.work); | |
2181 | struct net_device *netdev = adapter->netdev; | |
2182 | u32 status; | |
2183 | ||
2184 | netif_device_detach(netdev); | |
2185 | ||
2186 | qlcnic_down(adapter, netdev); | |
2187 | ||
ce668443 | 2188 | rtnl_lock(); |
af19b491 | 2189 | qlcnic_detach(adapter); |
ce668443 | 2190 | rtnl_unlock(); |
af19b491 AKS |
2191 | |
2192 | status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1); | |
2193 | ||
2194 | if (status & QLCNIC_RCODE_FATAL_ERROR) | |
2195 | goto err_ret; | |
2196 | ||
2197 | if (adapter->temp == QLCNIC_TEMP_PANIC) | |
2198 | goto err_ret; | |
2199 | ||
ade91f8e AKS |
2200 | if (qlcnic_set_drv_state(adapter, adapter->dev_state)) |
2201 | goto err_ret; | |
af19b491 AKS |
2202 | |
2203 | adapter->fw_wait_cnt = 0; | |
2204 | ||
2205 | qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY); | |
2206 | ||
2207 | return; | |
2208 | ||
2209 | err_ret: | |
65b5b420 AKS |
2210 | dev_err(&adapter->pdev->dev, "detach failed; status=%d temp=%d\n", |
2211 | status, adapter->temp); | |
34ce3626 | 2212 | netif_device_attach(netdev); |
af19b491 AKS |
2213 | qlcnic_clr_all_drv_state(adapter); |
2214 | ||
2215 | } | |
2216 | ||
f73dfc50 | 2217 | /*Transit to RESET state from READY state only */ |
af19b491 AKS |
2218 | static void |
2219 | qlcnic_dev_request_reset(struct qlcnic_adapter *adapter) | |
2220 | { | |
2221 | u32 state; | |
2222 | ||
2223 | if (qlcnic_api_lock(adapter)) | |
2224 | return; | |
2225 | ||
2226 | state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); | |
2227 | ||
f73dfc50 | 2228 | if (state == QLCNIC_DEV_READY) { |
af19b491 | 2229 | QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET); |
65b5b420 | 2230 | QLCDB(adapter, DRV, "NEED_RESET state set\n"); |
af19b491 AKS |
2231 | } |
2232 | ||
2233 | qlcnic_api_unlock(adapter); | |
2234 | } | |
2235 | ||
2236 | static void | |
2237 | qlcnic_schedule_work(struct qlcnic_adapter *adapter, | |
2238 | work_func_t func, int delay) | |
2239 | { | |
2240 | INIT_DELAYED_WORK(&adapter->fw_work, func); | |
2241 | schedule_delayed_work(&adapter->fw_work, round_jiffies_relative(delay)); | |
2242 | } | |
2243 | ||
2244 | static void | |
2245 | qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter) | |
2246 | { | |
2247 | while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) | |
2248 | msleep(10); | |
2249 | ||
2250 | cancel_delayed_work_sync(&adapter->fw_work); | |
2251 | } | |
2252 | ||
2253 | static void | |
2254 | qlcnic_attach_work(struct work_struct *work) | |
2255 | { | |
2256 | struct qlcnic_adapter *adapter = container_of(work, | |
2257 | struct qlcnic_adapter, fw_work.work); | |
2258 | struct net_device *netdev = adapter->netdev; | |
2259 | int err; | |
2260 | ||
2261 | if (netif_running(netdev)) { | |
2262 | err = qlcnic_attach(adapter); | |
2263 | if (err) | |
2264 | goto done; | |
2265 | ||
2266 | err = qlcnic_up(adapter, netdev); | |
2267 | if (err) { | |
2268 | qlcnic_detach(adapter); | |
2269 | goto done; | |
2270 | } | |
2271 | ||
2272 | qlcnic_config_indev_addr(netdev, NETDEV_UP); | |
2273 | } | |
2274 | ||
af19b491 | 2275 | done: |
34ce3626 | 2276 | netif_device_attach(netdev); |
af19b491 AKS |
2277 | adapter->fw_fail_cnt = 0; |
2278 | clear_bit(__QLCNIC_RESETTING, &adapter->state); | |
1b95a839 AKS |
2279 | |
2280 | if (!qlcnic_clr_drv_state(adapter)) | |
2281 | qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, | |
2282 | FW_POLL_DELAY); | |
af19b491 AKS |
2283 | } |
2284 | ||
2285 | static int | |
2286 | qlcnic_check_health(struct qlcnic_adapter *adapter) | |
2287 | { | |
2288 | u32 state = 0, heartbit; | |
2289 | struct net_device *netdev = adapter->netdev; | |
2290 | ||
2291 | if (qlcnic_check_temp(adapter)) | |
2292 | goto detach; | |
2293 | ||
2294 | if (adapter->need_fw_reset) { | |
2295 | qlcnic_dev_request_reset(adapter); | |
2296 | goto detach; | |
2297 | } | |
2298 | ||
2299 | state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); | |
2300 | if (state == QLCNIC_DEV_NEED_RESET || state == QLCNIC_DEV_NEED_QUISCENT) | |
2301 | adapter->need_fw_reset = 1; | |
2302 | ||
2303 | heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER); | |
2304 | if (heartbit != adapter->heartbit) { | |
2305 | adapter->heartbit = heartbit; | |
2306 | adapter->fw_fail_cnt = 0; | |
2307 | if (adapter->need_fw_reset) | |
2308 | goto detach; | |
2309 | return 0; | |
2310 | } | |
2311 | ||
2312 | if (++adapter->fw_fail_cnt < FW_FAIL_THRESH) | |
2313 | return 0; | |
2314 | ||
2315 | qlcnic_dev_request_reset(adapter); | |
2316 | ||
2317 | clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state); | |
2318 | ||
2319 | dev_info(&netdev->dev, "firmware hang detected\n"); | |
2320 | ||
2321 | detach: | |
2322 | adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state : | |
2323 | QLCNIC_DEV_NEED_RESET; | |
2324 | ||
2325 | if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) && | |
65b5b420 AKS |
2326 | !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) { |
2327 | ||
af19b491 | 2328 | qlcnic_schedule_work(adapter, qlcnic_detach_work, 0); |
65b5b420 AKS |
2329 | QLCDB(adapter, DRV, "fw recovery scheduled.\n"); |
2330 | } | |
af19b491 AKS |
2331 | |
2332 | return 1; | |
2333 | } | |
2334 | ||
2335 | static void | |
2336 | qlcnic_fw_poll_work(struct work_struct *work) | |
2337 | { | |
2338 | struct qlcnic_adapter *adapter = container_of(work, | |
2339 | struct qlcnic_adapter, fw_work.work); | |
2340 | ||
2341 | if (test_bit(__QLCNIC_RESETTING, &adapter->state)) | |
2342 | goto reschedule; | |
2343 | ||
2344 | ||
2345 | if (qlcnic_check_health(adapter)) | |
2346 | return; | |
2347 | ||
2348 | reschedule: | |
2349 | qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); | |
2350 | } | |
2351 | ||
2352 | static ssize_t | |
2353 | qlcnic_store_bridged_mode(struct device *dev, | |
2354 | struct device_attribute *attr, const char *buf, size_t len) | |
2355 | { | |
2356 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2357 | unsigned long new; | |
2358 | int ret = -EINVAL; | |
2359 | ||
2360 | if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)) | |
2361 | goto err_out; | |
2362 | ||
2363 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
2364 | goto err_out; | |
2365 | ||
2366 | if (strict_strtoul(buf, 2, &new)) | |
2367 | goto err_out; | |
2368 | ||
2369 | if (!qlcnic_config_bridged_mode(adapter, !!new)) | |
2370 | ret = len; | |
2371 | ||
2372 | err_out: | |
2373 | return ret; | |
2374 | } | |
2375 | ||
2376 | static ssize_t | |
2377 | qlcnic_show_bridged_mode(struct device *dev, | |
2378 | struct device_attribute *attr, char *buf) | |
2379 | { | |
2380 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2381 | int bridged_mode = 0; | |
2382 | ||
2383 | if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG) | |
2384 | bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED); | |
2385 | ||
2386 | return sprintf(buf, "%d\n", bridged_mode); | |
2387 | } | |
2388 | ||
2389 | static struct device_attribute dev_attr_bridged_mode = { | |
2390 | .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)}, | |
2391 | .show = qlcnic_show_bridged_mode, | |
2392 | .store = qlcnic_store_bridged_mode, | |
2393 | }; | |
2394 | ||
2395 | static ssize_t | |
2396 | qlcnic_store_diag_mode(struct device *dev, | |
2397 | struct device_attribute *attr, const char *buf, size_t len) | |
2398 | { | |
2399 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2400 | unsigned long new; | |
2401 | ||
2402 | if (strict_strtoul(buf, 2, &new)) | |
2403 | return -EINVAL; | |
2404 | ||
2405 | if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED)) | |
2406 | adapter->flags ^= QLCNIC_DIAG_ENABLED; | |
2407 | ||
2408 | return len; | |
2409 | } | |
2410 | ||
2411 | static ssize_t | |
2412 | qlcnic_show_diag_mode(struct device *dev, | |
2413 | struct device_attribute *attr, char *buf) | |
2414 | { | |
2415 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2416 | ||
2417 | return sprintf(buf, "%d\n", | |
2418 | !!(adapter->flags & QLCNIC_DIAG_ENABLED)); | |
2419 | } | |
2420 | ||
2421 | static struct device_attribute dev_attr_diag_mode = { | |
2422 | .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)}, | |
2423 | .show = qlcnic_show_diag_mode, | |
2424 | .store = qlcnic_store_diag_mode, | |
2425 | }; | |
2426 | ||
2427 | static int | |
2428 | qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter, | |
2429 | loff_t offset, size_t size) | |
2430 | { | |
897e8c7c DP |
2431 | size_t crb_size = 4; |
2432 | ||
af19b491 AKS |
2433 | if (!(adapter->flags & QLCNIC_DIAG_ENABLED)) |
2434 | return -EIO; | |
2435 | ||
897e8c7c DP |
2436 | if (offset < QLCNIC_PCI_CRBSPACE) { |
2437 | if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, | |
2438 | QLCNIC_PCI_CAMQM_END)) | |
2439 | crb_size = 8; | |
2440 | else | |
2441 | return -EINVAL; | |
2442 | } | |
af19b491 | 2443 | |
897e8c7c DP |
2444 | if ((size != crb_size) || (offset & (crb_size-1))) |
2445 | return -EINVAL; | |
af19b491 AKS |
2446 | |
2447 | return 0; | |
2448 | } | |
2449 | ||
2450 | static ssize_t | |
2451 | qlcnic_sysfs_read_crb(struct kobject *kobj, struct bin_attribute *attr, | |
2452 | char *buf, loff_t offset, size_t size) | |
2453 | { | |
2454 | struct device *dev = container_of(kobj, struct device, kobj); | |
2455 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2456 | u32 data; | |
897e8c7c | 2457 | u64 qmdata; |
af19b491 AKS |
2458 | int ret; |
2459 | ||
2460 | ret = qlcnic_sysfs_validate_crb(adapter, offset, size); | |
2461 | if (ret != 0) | |
2462 | return ret; | |
2463 | ||
897e8c7c DP |
2464 | if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) { |
2465 | qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata); | |
2466 | memcpy(buf, &qmdata, size); | |
2467 | } else { | |
2468 | data = QLCRD32(adapter, offset); | |
2469 | memcpy(buf, &data, size); | |
2470 | } | |
af19b491 AKS |
2471 | return size; |
2472 | } | |
2473 | ||
2474 | static ssize_t | |
2475 | qlcnic_sysfs_write_crb(struct kobject *kobj, struct bin_attribute *attr, | |
2476 | char *buf, loff_t offset, size_t size) | |
2477 | { | |
2478 | struct device *dev = container_of(kobj, struct device, kobj); | |
2479 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2480 | u32 data; | |
897e8c7c | 2481 | u64 qmdata; |
af19b491 AKS |
2482 | int ret; |
2483 | ||
2484 | ret = qlcnic_sysfs_validate_crb(adapter, offset, size); | |
2485 | if (ret != 0) | |
2486 | return ret; | |
2487 | ||
897e8c7c DP |
2488 | if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) { |
2489 | memcpy(&qmdata, buf, size); | |
2490 | qlcnic_pci_camqm_write_2M(adapter, offset, qmdata); | |
2491 | } else { | |
2492 | memcpy(&data, buf, size); | |
2493 | QLCWR32(adapter, offset, data); | |
2494 | } | |
af19b491 AKS |
2495 | return size; |
2496 | } | |
2497 | ||
2498 | static int | |
2499 | qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter, | |
2500 | loff_t offset, size_t size) | |
2501 | { | |
2502 | if (!(adapter->flags & QLCNIC_DIAG_ENABLED)) | |
2503 | return -EIO; | |
2504 | ||
2505 | if ((size != 8) || (offset & 0x7)) | |
2506 | return -EIO; | |
2507 | ||
2508 | return 0; | |
2509 | } | |
2510 | ||
2511 | static ssize_t | |
2512 | qlcnic_sysfs_read_mem(struct kobject *kobj, struct bin_attribute *attr, | |
2513 | char *buf, loff_t offset, size_t size) | |
2514 | { | |
2515 | struct device *dev = container_of(kobj, struct device, kobj); | |
2516 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2517 | u64 data; | |
2518 | int ret; | |
2519 | ||
2520 | ret = qlcnic_sysfs_validate_mem(adapter, offset, size); | |
2521 | if (ret != 0) | |
2522 | return ret; | |
2523 | ||
2524 | if (qlcnic_pci_mem_read_2M(adapter, offset, &data)) | |
2525 | return -EIO; | |
2526 | ||
2527 | memcpy(buf, &data, size); | |
2528 | ||
2529 | return size; | |
2530 | } | |
2531 | ||
2532 | static ssize_t | |
2533 | qlcnic_sysfs_write_mem(struct kobject *kobj, struct bin_attribute *attr, | |
2534 | char *buf, loff_t offset, size_t size) | |
2535 | { | |
2536 | struct device *dev = container_of(kobj, struct device, kobj); | |
2537 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2538 | u64 data; | |
2539 | int ret; | |
2540 | ||
2541 | ret = qlcnic_sysfs_validate_mem(adapter, offset, size); | |
2542 | if (ret != 0) | |
2543 | return ret; | |
2544 | ||
2545 | memcpy(&data, buf, size); | |
2546 | ||
2547 | if (qlcnic_pci_mem_write_2M(adapter, offset, data)) | |
2548 | return -EIO; | |
2549 | ||
2550 | return size; | |
2551 | } | |
2552 | ||
2553 | ||
2554 | static struct bin_attribute bin_attr_crb = { | |
2555 | .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)}, | |
2556 | .size = 0, | |
2557 | .read = qlcnic_sysfs_read_crb, | |
2558 | .write = qlcnic_sysfs_write_crb, | |
2559 | }; | |
2560 | ||
2561 | static struct bin_attribute bin_attr_mem = { | |
2562 | .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)}, | |
2563 | .size = 0, | |
2564 | .read = qlcnic_sysfs_read_mem, | |
2565 | .write = qlcnic_sysfs_write_mem, | |
2566 | }; | |
2567 | ||
2568 | static void | |
2569 | qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter) | |
2570 | { | |
2571 | struct device *dev = &adapter->pdev->dev; | |
2572 | ||
2573 | if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG) | |
2574 | if (device_create_file(dev, &dev_attr_bridged_mode)) | |
2575 | dev_warn(dev, | |
2576 | "failed to create bridged_mode sysfs entry\n"); | |
2577 | } | |
2578 | ||
2579 | static void | |
2580 | qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter) | |
2581 | { | |
2582 | struct device *dev = &adapter->pdev->dev; | |
2583 | ||
2584 | if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG) | |
2585 | device_remove_file(dev, &dev_attr_bridged_mode); | |
2586 | } | |
2587 | ||
2588 | static void | |
2589 | qlcnic_create_diag_entries(struct qlcnic_adapter *adapter) | |
2590 | { | |
2591 | struct device *dev = &adapter->pdev->dev; | |
2592 | ||
2593 | if (device_create_file(dev, &dev_attr_diag_mode)) | |
2594 | dev_info(dev, "failed to create diag_mode sysfs entry\n"); | |
2595 | if (device_create_bin_file(dev, &bin_attr_crb)) | |
2596 | dev_info(dev, "failed to create crb sysfs entry\n"); | |
2597 | if (device_create_bin_file(dev, &bin_attr_mem)) | |
2598 | dev_info(dev, "failed to create mem sysfs entry\n"); | |
2599 | } | |
2600 | ||
2601 | ||
2602 | static void | |
2603 | qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter) | |
2604 | { | |
2605 | struct device *dev = &adapter->pdev->dev; | |
2606 | ||
2607 | device_remove_file(dev, &dev_attr_diag_mode); | |
2608 | device_remove_bin_file(dev, &bin_attr_crb); | |
2609 | device_remove_bin_file(dev, &bin_attr_mem); | |
2610 | } | |
2611 | ||
2612 | #ifdef CONFIG_INET | |
2613 | ||
2614 | #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops) | |
2615 | ||
2616 | static int | |
2617 | qlcnic_destip_supported(struct qlcnic_adapter *adapter) | |
2618 | { | |
2619 | if (adapter->ahw.cut_through) | |
2620 | return 0; | |
2621 | ||
2622 | return 1; | |
2623 | } | |
2624 | ||
2625 | static void | |
2626 | qlcnic_config_indev_addr(struct net_device *dev, unsigned long event) | |
2627 | { | |
2628 | struct in_device *indev; | |
2629 | struct qlcnic_adapter *adapter = netdev_priv(dev); | |
2630 | ||
2631 | if (!qlcnic_destip_supported(adapter)) | |
2632 | return; | |
2633 | ||
2634 | indev = in_dev_get(dev); | |
2635 | if (!indev) | |
2636 | return; | |
2637 | ||
2638 | for_ifa(indev) { | |
2639 | switch (event) { | |
2640 | case NETDEV_UP: | |
2641 | qlcnic_config_ipaddr(adapter, | |
2642 | ifa->ifa_address, QLCNIC_IP_UP); | |
2643 | break; | |
2644 | case NETDEV_DOWN: | |
2645 | qlcnic_config_ipaddr(adapter, | |
2646 | ifa->ifa_address, QLCNIC_IP_DOWN); | |
2647 | break; | |
2648 | default: | |
2649 | break; | |
2650 | } | |
2651 | } endfor_ifa(indev); | |
2652 | ||
2653 | in_dev_put(indev); | |
2654 | return; | |
2655 | } | |
2656 | ||
2657 | static int qlcnic_netdev_event(struct notifier_block *this, | |
2658 | unsigned long event, void *ptr) | |
2659 | { | |
2660 | struct qlcnic_adapter *adapter; | |
2661 | struct net_device *dev = (struct net_device *)ptr; | |
2662 | ||
2663 | recheck: | |
2664 | if (dev == NULL) | |
2665 | goto done; | |
2666 | ||
2667 | if (dev->priv_flags & IFF_802_1Q_VLAN) { | |
2668 | dev = vlan_dev_real_dev(dev); | |
2669 | goto recheck; | |
2670 | } | |
2671 | ||
2672 | if (!is_qlcnic_netdev(dev)) | |
2673 | goto done; | |
2674 | ||
2675 | adapter = netdev_priv(dev); | |
2676 | ||
2677 | if (!adapter) | |
2678 | goto done; | |
2679 | ||
2680 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
2681 | goto done; | |
2682 | ||
2683 | qlcnic_config_indev_addr(dev, event); | |
2684 | done: | |
2685 | return NOTIFY_DONE; | |
2686 | } | |
2687 | ||
2688 | static int | |
2689 | qlcnic_inetaddr_event(struct notifier_block *this, | |
2690 | unsigned long event, void *ptr) | |
2691 | { | |
2692 | struct qlcnic_adapter *adapter; | |
2693 | struct net_device *dev; | |
2694 | ||
2695 | struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; | |
2696 | ||
2697 | dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; | |
2698 | ||
2699 | recheck: | |
2700 | if (dev == NULL || !netif_running(dev)) | |
2701 | goto done; | |
2702 | ||
2703 | if (dev->priv_flags & IFF_802_1Q_VLAN) { | |
2704 | dev = vlan_dev_real_dev(dev); | |
2705 | goto recheck; | |
2706 | } | |
2707 | ||
2708 | if (!is_qlcnic_netdev(dev)) | |
2709 | goto done; | |
2710 | ||
2711 | adapter = netdev_priv(dev); | |
2712 | ||
2713 | if (!adapter || !qlcnic_destip_supported(adapter)) | |
2714 | goto done; | |
2715 | ||
2716 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
2717 | goto done; | |
2718 | ||
2719 | switch (event) { | |
2720 | case NETDEV_UP: | |
2721 | qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP); | |
2722 | break; | |
2723 | case NETDEV_DOWN: | |
2724 | qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN); | |
2725 | break; | |
2726 | default: | |
2727 | break; | |
2728 | } | |
2729 | ||
2730 | done: | |
2731 | return NOTIFY_DONE; | |
2732 | } | |
2733 | ||
2734 | static struct notifier_block qlcnic_netdev_cb = { | |
2735 | .notifier_call = qlcnic_netdev_event, | |
2736 | }; | |
2737 | ||
2738 | static struct notifier_block qlcnic_inetaddr_cb = { | |
2739 | .notifier_call = qlcnic_inetaddr_event, | |
2740 | }; | |
2741 | #else | |
2742 | static void | |
2743 | qlcnic_config_indev_addr(struct net_device *dev, unsigned long event) | |
2744 | { } | |
2745 | #endif | |
2746 | ||
2747 | static struct pci_driver qlcnic_driver = { | |
2748 | .name = qlcnic_driver_name, | |
2749 | .id_table = qlcnic_pci_tbl, | |
2750 | .probe = qlcnic_probe, | |
2751 | .remove = __devexit_p(qlcnic_remove), | |
2752 | #ifdef CONFIG_PM | |
2753 | .suspend = qlcnic_suspend, | |
2754 | .resume = qlcnic_resume, | |
2755 | #endif | |
2756 | .shutdown = qlcnic_shutdown | |
2757 | }; | |
2758 | ||
2759 | static int __init qlcnic_init_module(void) | |
2760 | { | |
2761 | ||
2762 | printk(KERN_INFO "%s\n", qlcnic_driver_string); | |
2763 | ||
2764 | #ifdef CONFIG_INET | |
2765 | register_netdevice_notifier(&qlcnic_netdev_cb); | |
2766 | register_inetaddr_notifier(&qlcnic_inetaddr_cb); | |
2767 | #endif | |
2768 | ||
2769 | ||
2770 | return pci_register_driver(&qlcnic_driver); | |
2771 | } | |
2772 | ||
2773 | module_init(qlcnic_init_module); | |
2774 | ||
2775 | static void __exit qlcnic_exit_module(void) | |
2776 | { | |
2777 | ||
2778 | pci_unregister_driver(&qlcnic_driver); | |
2779 | ||
2780 | #ifdef CONFIG_INET | |
2781 | unregister_inetaddr_notifier(&qlcnic_inetaddr_cb); | |
2782 | unregister_netdevice_notifier(&qlcnic_netdev_cb); | |
2783 | #endif | |
2784 | } | |
2785 | ||
2786 | module_exit(qlcnic_exit_module); |