Commit | Line | Data |
---|---|---|
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 | ||
25 | #include <linux/vmalloc.h> | |
26 | #include <linux/interrupt.h> | |
27 | ||
28 | #include "qlcnic.h" | |
29 | ||
30 | #include <linux/dma-mapping.h> | |
31 | #include <linux/if_vlan.h> | |
32 | #include <net/ip.h> | |
33 | #include <linux/ipv6.h> | |
34 | #include <linux/inetdevice.h> | |
35 | #include <linux/sysfs.h> | |
36 | ||
37 | MODULE_DESCRIPTION("QLogic 10 GbE Converged Ethernet Driver"); | |
38 | MODULE_LICENSE("GPL"); | |
39 | MODULE_VERSION(QLCNIC_LINUX_VERSIONID); | |
40 | MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME); | |
41 | ||
42 | char qlcnic_driver_name[] = "qlcnic"; | |
43 | static const char qlcnic_driver_string[] = "QLogic Converged Ethernet Driver v" | |
44 | QLCNIC_LINUX_VERSIONID; | |
45 | ||
46 | static int port_mode = QLCNIC_PORT_MODE_AUTO_NEG; | |
47 | ||
48 | /* Default to restricted 1G auto-neg mode */ | |
49 | static int wol_port_mode = 5; | |
50 | ||
51 | static int use_msi = 1; | |
52 | module_param(use_msi, int, 0644); | |
53 | MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled"); | |
54 | ||
55 | static int use_msi_x = 1; | |
56 | module_param(use_msi_x, int, 0644); | |
57 | MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled"); | |
58 | ||
59 | static int auto_fw_reset = AUTO_FW_RESET_ENABLED; | |
60 | module_param(auto_fw_reset, int, 0644); | |
61 | MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled"); | |
62 | ||
63 | static int __devinit qlcnic_probe(struct pci_dev *pdev, | |
64 | const struct pci_device_id *ent); | |
65 | static void __devexit qlcnic_remove(struct pci_dev *pdev); | |
66 | static int qlcnic_open(struct net_device *netdev); | |
67 | static int qlcnic_close(struct net_device *netdev); | |
68 | static netdev_tx_t qlcnic_xmit_frame(struct sk_buff *, | |
69 | struct net_device *); | |
70 | static void qlcnic_tx_timeout(struct net_device *netdev); | |
71 | static void qlcnic_tx_timeout_task(struct work_struct *work); | |
72 | static void qlcnic_attach_work(struct work_struct *work); | |
73 | static void qlcnic_fwinit_work(struct work_struct *work); | |
74 | static void qlcnic_fw_poll_work(struct work_struct *work); | |
75 | static void qlcnic_schedule_work(struct qlcnic_adapter *adapter, | |
76 | work_func_t func, int delay); | |
77 | static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter); | |
78 | static int qlcnic_poll(struct napi_struct *napi, int budget); | |
79 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
80 | static void qlcnic_poll_controller(struct net_device *netdev); | |
81 | #endif | |
82 | ||
83 | static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter); | |
84 | static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter); | |
85 | static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter); | |
86 | static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter); | |
87 | ||
88 | static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter); | |
89 | static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter); | |
90 | ||
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 | ||
105 | static const struct pci_device_id qlcnic_pci_tbl[] __devinitdata = { | |
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(); | |
122 | } | |
123 | } | |
124 | ||
125 | static const u32 msi_tgt_status[8] = { | |
126 | ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, | |
127 | ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3, | |
128 | ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5, | |
129 | ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7 | |
130 | }; | |
131 | ||
132 | static const | |
133 | struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG; | |
134 | ||
135 | static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring) | |
136 | { | |
137 | writel(0, sds_ring->crb_intr_mask); | |
138 | } | |
139 | ||
140 | static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring) | |
141 | { | |
142 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
143 | ||
144 | writel(0x1, sds_ring->crb_intr_mask); | |
145 | ||
146 | if (!QLCNIC_IS_MSI_FAMILY(adapter)) | |
147 | writel(0xfbff, adapter->tgt_mask_reg); | |
148 | } | |
149 | ||
150 | static int | |
151 | qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count) | |
152 | { | |
153 | int size = sizeof(struct qlcnic_host_sds_ring) * count; | |
154 | ||
155 | recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL); | |
156 | ||
157 | return (recv_ctx->sds_rings == NULL); | |
158 | } | |
159 | ||
160 | static void | |
161 | qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx) | |
162 | { | |
163 | if (recv_ctx->sds_rings != NULL) | |
164 | kfree(recv_ctx->sds_rings); | |
165 | ||
166 | recv_ctx->sds_rings = NULL; | |
167 | } | |
168 | ||
169 | static int | |
170 | qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev) | |
171 | { | |
172 | int ring; | |
173 | struct qlcnic_host_sds_ring *sds_ring; | |
174 | struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; | |
175 | ||
176 | if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) | |
177 | return -ENOMEM; | |
178 | ||
179 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
180 | sds_ring = &recv_ctx->sds_rings[ring]; | |
181 | netif_napi_add(netdev, &sds_ring->napi, | |
182 | qlcnic_poll, QLCNIC_NETDEV_WEIGHT); | |
183 | } | |
184 | ||
185 | return 0; | |
186 | } | |
187 | ||
188 | static void | |
189 | qlcnic_napi_del(struct qlcnic_adapter *adapter) | |
190 | { | |
191 | int ring; | |
192 | struct qlcnic_host_sds_ring *sds_ring; | |
193 | struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; | |
194 | ||
195 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
196 | sds_ring = &recv_ctx->sds_rings[ring]; | |
197 | netif_napi_del(&sds_ring->napi); | |
198 | } | |
199 | ||
200 | qlcnic_free_sds_rings(&adapter->recv_ctx); | |
201 | } | |
202 | ||
203 | static void | |
204 | qlcnic_napi_enable(struct qlcnic_adapter *adapter) | |
205 | { | |
206 | int ring; | |
207 | struct qlcnic_host_sds_ring *sds_ring; | |
208 | struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; | |
209 | ||
210 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
211 | sds_ring = &recv_ctx->sds_rings[ring]; | |
212 | napi_enable(&sds_ring->napi); | |
213 | qlcnic_enable_int(sds_ring); | |
214 | } | |
215 | } | |
216 | ||
217 | static void | |
218 | qlcnic_napi_disable(struct qlcnic_adapter *adapter) | |
219 | { | |
220 | int ring; | |
221 | struct qlcnic_host_sds_ring *sds_ring; | |
222 | struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; | |
223 | ||
224 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
225 | sds_ring = &recv_ctx->sds_rings[ring]; | |
226 | qlcnic_disable_int(sds_ring); | |
227 | napi_synchronize(&sds_ring->napi); | |
228 | napi_disable(&sds_ring->napi); | |
229 | } | |
230 | } | |
231 | ||
232 | static void qlcnic_clear_stats(struct qlcnic_adapter *adapter) | |
233 | { | |
234 | memset(&adapter->stats, 0, sizeof(adapter->stats)); | |
235 | return; | |
236 | } | |
237 | ||
238 | static int qlcnic_set_dma_mask(struct qlcnic_adapter *adapter) | |
239 | { | |
240 | struct pci_dev *pdev = adapter->pdev; | |
241 | u64 mask, cmask; | |
242 | ||
243 | adapter->pci_using_dac = 0; | |
244 | ||
245 | mask = DMA_BIT_MASK(39); | |
246 | cmask = mask; | |
247 | ||
248 | if (pci_set_dma_mask(pdev, mask) == 0 && | |
249 | pci_set_consistent_dma_mask(pdev, cmask) == 0) { | |
250 | adapter->pci_using_dac = 1; | |
251 | return 0; | |
252 | } | |
253 | ||
254 | return -EIO; | |
255 | } | |
256 | ||
257 | /* Update addressable range if firmware supports it */ | |
258 | static int | |
259 | qlcnic_update_dma_mask(struct qlcnic_adapter *adapter) | |
260 | { | |
261 | int change, shift, err; | |
262 | u64 mask, old_mask, old_cmask; | |
263 | struct pci_dev *pdev = adapter->pdev; | |
264 | ||
265 | change = 0; | |
266 | ||
267 | shift = QLCRD32(adapter, CRB_DMA_SHIFT); | |
268 | if (shift > 32) | |
269 | return 0; | |
270 | ||
271 | if (shift > 9) | |
272 | change = 1; | |
273 | ||
274 | if (change) { | |
275 | old_mask = pdev->dma_mask; | |
276 | old_cmask = pdev->dev.coherent_dma_mask; | |
277 | ||
278 | mask = DMA_BIT_MASK(32+shift); | |
279 | ||
280 | err = pci_set_dma_mask(pdev, mask); | |
281 | if (err) | |
282 | goto err_out; | |
283 | ||
284 | err = pci_set_consistent_dma_mask(pdev, mask); | |
285 | if (err) | |
286 | goto err_out; | |
287 | dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift); | |
288 | } | |
289 | ||
290 | return 0; | |
291 | ||
292 | err_out: | |
293 | pci_set_dma_mask(pdev, old_mask); | |
294 | pci_set_consistent_dma_mask(pdev, old_cmask); | |
295 | return err; | |
296 | } | |
297 | ||
298 | static void qlcnic_set_port_mode(struct qlcnic_adapter *adapter) | |
299 | { | |
300 | u32 val, data; | |
301 | ||
302 | val = adapter->ahw.board_type; | |
303 | if ((val == QLCNIC_BRDTYPE_P3_HMEZ) || | |
304 | (val == QLCNIC_BRDTYPE_P3_XG_LOM)) { | |
305 | if (port_mode == QLCNIC_PORT_MODE_802_3_AP) { | |
306 | data = QLCNIC_PORT_MODE_802_3_AP; | |
307 | QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); | |
308 | } else if (port_mode == QLCNIC_PORT_MODE_XG) { | |
309 | data = QLCNIC_PORT_MODE_XG; | |
310 | QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); | |
311 | } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_1G) { | |
312 | data = QLCNIC_PORT_MODE_AUTO_NEG_1G; | |
313 | QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); | |
314 | } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_XG) { | |
315 | data = QLCNIC_PORT_MODE_AUTO_NEG_XG; | |
316 | QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); | |
317 | } else { | |
318 | data = QLCNIC_PORT_MODE_AUTO_NEG; | |
319 | QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); | |
320 | } | |
321 | ||
322 | if ((wol_port_mode != QLCNIC_PORT_MODE_802_3_AP) && | |
323 | (wol_port_mode != QLCNIC_PORT_MODE_XG) && | |
324 | (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_1G) && | |
325 | (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_XG)) { | |
326 | wol_port_mode = QLCNIC_PORT_MODE_AUTO_NEG; | |
327 | } | |
328 | QLCWR32(adapter, QLCNIC_WOL_PORT_MODE, wol_port_mode); | |
329 | } | |
330 | } | |
331 | ||
332 | static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable) | |
333 | { | |
334 | u32 control; | |
335 | int pos; | |
336 | ||
337 | pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); | |
338 | if (pos) { | |
339 | pci_read_config_dword(pdev, pos, &control); | |
340 | if (enable) | |
341 | control |= PCI_MSIX_FLAGS_ENABLE; | |
342 | else | |
343 | control = 0; | |
344 | pci_write_config_dword(pdev, pos, control); | |
345 | } | |
346 | } | |
347 | ||
348 | static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count) | |
349 | { | |
350 | int i; | |
351 | ||
352 | for (i = 0; i < count; i++) | |
353 | adapter->msix_entries[i].entry = i; | |
354 | } | |
355 | ||
356 | static int | |
357 | qlcnic_read_mac_addr(struct qlcnic_adapter *adapter) | |
358 | { | |
359 | int i; | |
360 | unsigned char *p; | |
361 | u64 mac_addr; | |
362 | struct net_device *netdev = adapter->netdev; | |
363 | struct pci_dev *pdev = adapter->pdev; | |
364 | ||
365 | if (qlcnic_get_mac_addr(adapter, &mac_addr) != 0) | |
366 | return -EIO; | |
367 | ||
368 | p = (unsigned char *)&mac_addr; | |
369 | for (i = 0; i < 6; i++) | |
370 | netdev->dev_addr[i] = *(p + 5 - i); | |
371 | ||
372 | memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len); | |
373 | memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len); | |
374 | ||
375 | /* set station address */ | |
376 | ||
377 | if (!is_valid_ether_addr(netdev->perm_addr)) | |
378 | dev_warn(&pdev->dev, "Bad MAC address %pM.\n", | |
379 | netdev->dev_addr); | |
380 | ||
381 | return 0; | |
382 | } | |
383 | ||
384 | static int qlcnic_set_mac(struct net_device *netdev, void *p) | |
385 | { | |
386 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
387 | struct sockaddr *addr = p; | |
388 | ||
389 | if (!is_valid_ether_addr(addr->sa_data)) | |
390 | return -EINVAL; | |
391 | ||
392 | if (netif_running(netdev)) { | |
393 | netif_device_detach(netdev); | |
394 | qlcnic_napi_disable(adapter); | |
395 | } | |
396 | ||
397 | memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len); | |
398 | memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); | |
399 | qlcnic_set_multi(adapter->netdev); | |
400 | ||
401 | if (netif_running(netdev)) { | |
402 | netif_device_attach(netdev); | |
403 | qlcnic_napi_enable(adapter); | |
404 | } | |
405 | return 0; | |
406 | } | |
407 | ||
408 | static const struct net_device_ops qlcnic_netdev_ops = { | |
409 | .ndo_open = qlcnic_open, | |
410 | .ndo_stop = qlcnic_close, | |
411 | .ndo_start_xmit = qlcnic_xmit_frame, | |
412 | .ndo_get_stats = qlcnic_get_stats, | |
413 | .ndo_validate_addr = eth_validate_addr, | |
414 | .ndo_set_multicast_list = qlcnic_set_multi, | |
415 | .ndo_set_mac_address = qlcnic_set_mac, | |
416 | .ndo_change_mtu = qlcnic_change_mtu, | |
417 | .ndo_tx_timeout = qlcnic_tx_timeout, | |
418 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
419 | .ndo_poll_controller = qlcnic_poll_controller, | |
420 | #endif | |
421 | }; | |
422 | ||
423 | static void | |
424 | qlcnic_setup_intr(struct qlcnic_adapter *adapter) | |
425 | { | |
426 | const struct qlcnic_legacy_intr_set *legacy_intrp; | |
427 | struct pci_dev *pdev = adapter->pdev; | |
428 | int err, num_msix; | |
429 | ||
430 | if (adapter->rss_supported) { | |
431 | num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ? | |
432 | MSIX_ENTRIES_PER_ADAPTER : 2; | |
433 | } else | |
434 | num_msix = 1; | |
435 | ||
436 | adapter->max_sds_rings = 1; | |
437 | ||
438 | adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED); | |
439 | ||
440 | legacy_intrp = &legacy_intr[adapter->ahw.pci_func]; | |
441 | ||
442 | adapter->int_vec_bit = legacy_intrp->int_vec_bit; | |
443 | adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter, | |
444 | legacy_intrp->tgt_status_reg); | |
445 | adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter, | |
446 | legacy_intrp->tgt_mask_reg); | |
447 | adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR); | |
448 | ||
449 | adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter, | |
450 | ISR_INT_STATE_REG); | |
451 | ||
452 | qlcnic_set_msix_bit(pdev, 0); | |
453 | ||
454 | if (adapter->msix_supported) { | |
455 | ||
456 | qlcnic_init_msix_entries(adapter, num_msix); | |
457 | err = pci_enable_msix(pdev, adapter->msix_entries, num_msix); | |
458 | if (err == 0) { | |
459 | adapter->flags |= QLCNIC_MSIX_ENABLED; | |
460 | qlcnic_set_msix_bit(pdev, 1); | |
461 | ||
462 | if (adapter->rss_supported) | |
463 | adapter->max_sds_rings = num_msix; | |
464 | ||
465 | dev_info(&pdev->dev, "using msi-x interrupts\n"); | |
466 | return; | |
467 | } | |
468 | ||
469 | if (err > 0) | |
470 | pci_disable_msix(pdev); | |
471 | ||
472 | /* fall through for msi */ | |
473 | } | |
474 | ||
475 | if (use_msi && !pci_enable_msi(pdev)) { | |
476 | adapter->flags |= QLCNIC_MSI_ENABLED; | |
477 | adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter, | |
478 | msi_tgt_status[adapter->ahw.pci_func]); | |
479 | dev_info(&pdev->dev, "using msi interrupts\n"); | |
480 | adapter->msix_entries[0].vector = pdev->irq; | |
481 | return; | |
482 | } | |
483 | ||
484 | dev_info(&pdev->dev, "using legacy interrupts\n"); | |
485 | adapter->msix_entries[0].vector = pdev->irq; | |
486 | } | |
487 | ||
488 | static void | |
489 | qlcnic_teardown_intr(struct qlcnic_adapter *adapter) | |
490 | { | |
491 | if (adapter->flags & QLCNIC_MSIX_ENABLED) | |
492 | pci_disable_msix(adapter->pdev); | |
493 | if (adapter->flags & QLCNIC_MSI_ENABLED) | |
494 | pci_disable_msi(adapter->pdev); | |
495 | } | |
496 | ||
497 | static void | |
498 | qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter) | |
499 | { | |
500 | if (adapter->ahw.pci_base0 != NULL) | |
501 | iounmap(adapter->ahw.pci_base0); | |
502 | } | |
503 | ||
504 | static int | |
505 | qlcnic_setup_pci_map(struct qlcnic_adapter *adapter) | |
506 | { | |
507 | void __iomem *mem_ptr0 = NULL; | |
508 | resource_size_t mem_base; | |
509 | unsigned long mem_len, pci_len0 = 0; | |
510 | ||
511 | struct pci_dev *pdev = adapter->pdev; | |
512 | int pci_func = adapter->ahw.pci_func; | |
513 | ||
514 | /* | |
515 | * Set the CRB window to invalid. If any register in window 0 is | |
516 | * accessed it should set the window to 0 and then reset it to 1. | |
517 | */ | |
518 | adapter->ahw.crb_win = -1; | |
519 | adapter->ahw.ocm_win = -1; | |
520 | ||
521 | /* remap phys address */ | |
522 | mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ | |
523 | mem_len = pci_resource_len(pdev, 0); | |
524 | ||
525 | if (mem_len == QLCNIC_PCI_2MB_SIZE) { | |
526 | ||
527 | mem_ptr0 = pci_ioremap_bar(pdev, 0); | |
528 | if (mem_ptr0 == NULL) { | |
529 | dev_err(&pdev->dev, "failed to map PCI bar 0\n"); | |
530 | return -EIO; | |
531 | } | |
532 | pci_len0 = mem_len; | |
533 | } else { | |
534 | return -EIO; | |
535 | } | |
536 | ||
537 | dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); | |
538 | ||
539 | adapter->ahw.pci_base0 = mem_ptr0; | |
540 | adapter->ahw.pci_len0 = pci_len0; | |
541 | ||
542 | adapter->ahw.ocm_win_crb = qlcnic_get_ioaddr(adapter, | |
543 | QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func))); | |
544 | ||
545 | return 0; | |
546 | } | |
547 | ||
548 | static void get_brd_name(struct qlcnic_adapter *adapter, char *name) | |
549 | { | |
550 | struct pci_dev *pdev = adapter->pdev; | |
551 | int i, found = 0; | |
552 | ||
553 | for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) { | |
554 | if (qlcnic_boards[i].vendor == pdev->vendor && | |
555 | qlcnic_boards[i].device == pdev->device && | |
556 | qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor && | |
557 | qlcnic_boards[i].sub_device == pdev->subsystem_device) { | |
558 | strcpy(name, qlcnic_boards[i].short_name); | |
559 | found = 1; | |
560 | break; | |
561 | } | |
562 | ||
563 | } | |
564 | ||
565 | if (!found) | |
566 | name = "Unknown"; | |
567 | } | |
568 | ||
569 | static void | |
570 | qlcnic_check_options(struct qlcnic_adapter *adapter) | |
571 | { | |
572 | u32 fw_major, fw_minor, fw_build; | |
573 | char brd_name[QLCNIC_MAX_BOARD_NAME_LEN]; | |
574 | char serial_num[32]; | |
575 | int i, offset, val; | |
576 | int *ptr32; | |
577 | struct pci_dev *pdev = adapter->pdev; | |
578 | ||
579 | adapter->driver_mismatch = 0; | |
580 | ||
581 | ptr32 = (int *)&serial_num; | |
582 | offset = QLCNIC_FW_SERIAL_NUM_OFFSET; | |
583 | for (i = 0; i < 8; i++) { | |
584 | if (qlcnic_rom_fast_read(adapter, offset, &val) == -1) { | |
585 | dev_err(&pdev->dev, "error reading board info\n"); | |
586 | adapter->driver_mismatch = 1; | |
587 | return; | |
588 | } | |
589 | ptr32[i] = cpu_to_le32(val); | |
590 | offset += sizeof(u32); | |
591 | } | |
592 | ||
593 | fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR); | |
594 | fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR); | |
595 | fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB); | |
596 | ||
597 | adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build); | |
598 | ||
599 | if (adapter->portnum == 0) { | |
600 | get_brd_name(adapter, brd_name); | |
601 | ||
602 | pr_info("%s: %s Board Chip rev 0x%x\n", | |
603 | module_name(THIS_MODULE), | |
604 | brd_name, adapter->ahw.revision_id); | |
605 | } | |
606 | ||
607 | if (adapter->fw_version < QLCNIC_VERSION_CODE(3, 4, 216)) { | |
608 | adapter->driver_mismatch = 1; | |
609 | dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n", | |
610 | fw_major, fw_minor, fw_build); | |
611 | return; | |
612 | } | |
613 | ||
614 | i = QLCRD32(adapter, QLCNIC_SRE_MISC); | |
615 | adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0; | |
616 | ||
617 | dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n", | |
618 | fw_major, fw_minor, fw_build, | |
619 | adapter->ahw.cut_through ? "cut-through" : "legacy"); | |
620 | ||
621 | if (adapter->fw_version >= QLCNIC_VERSION_CODE(4, 0, 222)) | |
622 | adapter->capabilities = QLCRD32(adapter, CRB_FW_CAPABILITIES_1); | |
623 | ||
624 | adapter->flags &= ~QLCNIC_LRO_ENABLED; | |
625 | ||
626 | if (adapter->ahw.port_type == QLCNIC_XGBE) { | |
627 | adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G; | |
628 | adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; | |
629 | } else if (adapter->ahw.port_type == QLCNIC_GBE) { | |
630 | adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G; | |
631 | adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; | |
632 | } | |
633 | ||
634 | adapter->msix_supported = !!use_msi_x; | |
635 | adapter->rss_supported = !!use_msi_x; | |
636 | ||
637 | adapter->num_txd = MAX_CMD_DESCRIPTORS; | |
638 | ||
639 | adapter->num_lro_rxd = 0; | |
640 | adapter->max_rds_rings = 2; | |
641 | } | |
642 | ||
643 | static int | |
644 | qlcnic_start_firmware(struct qlcnic_adapter *adapter) | |
645 | { | |
646 | int val, err, first_boot; | |
647 | ||
648 | err = qlcnic_set_dma_mask(adapter); | |
649 | if (err) | |
650 | return err; | |
651 | ||
652 | if (!qlcnic_can_start_firmware(adapter)) | |
653 | goto wait_init; | |
654 | ||
655 | first_boot = QLCRD32(adapter, QLCNIC_CAM_RAM(0x1fc)); | |
656 | if (first_boot == 0x55555555) | |
657 | /* This is the first boot after power up */ | |
658 | QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC); | |
659 | ||
660 | qlcnic_request_firmware(adapter); | |
661 | ||
662 | err = qlcnic_need_fw_reset(adapter); | |
663 | if (err < 0) | |
664 | goto err_out; | |
665 | if (err == 0) | |
666 | goto wait_init; | |
667 | ||
668 | if (first_boot != 0x55555555) { | |
669 | QLCWR32(adapter, CRB_CMDPEG_STATE, 0); | |
670 | qlcnic_pinit_from_rom(adapter); | |
671 | msleep(1); | |
672 | } | |
673 | ||
674 | QLCWR32(adapter, CRB_DMA_SHIFT, 0x55555555); | |
675 | QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0); | |
676 | QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0); | |
677 | ||
678 | qlcnic_set_port_mode(adapter); | |
679 | ||
680 | err = qlcnic_load_firmware(adapter); | |
681 | if (err) | |
682 | goto err_out; | |
683 | ||
684 | qlcnic_release_firmware(adapter); | |
685 | ||
686 | val = (_QLCNIC_LINUX_MAJOR << 16) | |
687 | | ((_QLCNIC_LINUX_MINOR << 8)) | |
688 | | (_QLCNIC_LINUX_SUBVERSION); | |
689 | QLCWR32(adapter, CRB_DRIVER_VERSION, val); | |
690 | ||
691 | wait_init: | |
692 | /* Handshake with the card before we register the devices. */ | |
693 | err = qlcnic_phantom_init(adapter); | |
694 | if (err) | |
695 | goto err_out; | |
696 | ||
697 | QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY); | |
698 | ||
699 | qlcnic_update_dma_mask(adapter); | |
700 | ||
701 | qlcnic_check_options(adapter); | |
702 | ||
703 | adapter->need_fw_reset = 0; | |
704 | ||
705 | /* fall through and release firmware */ | |
706 | ||
707 | err_out: | |
708 | qlcnic_release_firmware(adapter); | |
709 | return err; | |
710 | } | |
711 | ||
712 | static int | |
713 | qlcnic_request_irq(struct qlcnic_adapter *adapter) | |
714 | { | |
715 | irq_handler_t handler; | |
716 | struct qlcnic_host_sds_ring *sds_ring; | |
717 | int err, ring; | |
718 | ||
719 | unsigned long flags = 0; | |
720 | struct net_device *netdev = adapter->netdev; | |
721 | struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; | |
722 | ||
723 | if (adapter->flags & QLCNIC_MSIX_ENABLED) | |
724 | handler = qlcnic_msix_intr; | |
725 | else if (adapter->flags & QLCNIC_MSI_ENABLED) | |
726 | handler = qlcnic_msi_intr; | |
727 | else { | |
728 | flags |= IRQF_SHARED; | |
729 | handler = qlcnic_intr; | |
730 | } | |
731 | adapter->irq = netdev->irq; | |
732 | ||
733 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
734 | sds_ring = &recv_ctx->sds_rings[ring]; | |
735 | sprintf(sds_ring->name, "%s[%d]", netdev->name, ring); | |
736 | err = request_irq(sds_ring->irq, handler, | |
737 | flags, sds_ring->name, sds_ring); | |
738 | if (err) | |
739 | return err; | |
740 | } | |
741 | ||
742 | return 0; | |
743 | } | |
744 | ||
745 | static void | |
746 | qlcnic_free_irq(struct qlcnic_adapter *adapter) | |
747 | { | |
748 | int ring; | |
749 | struct qlcnic_host_sds_ring *sds_ring; | |
750 | ||
751 | struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; | |
752 | ||
753 | for (ring = 0; ring < adapter->max_sds_rings; ring++) { | |
754 | sds_ring = &recv_ctx->sds_rings[ring]; | |
755 | free_irq(sds_ring->irq, sds_ring); | |
756 | } | |
757 | } | |
758 | ||
759 | static void | |
760 | qlcnic_init_coalesce_defaults(struct qlcnic_adapter *adapter) | |
761 | { | |
762 | adapter->coal.flags = QLCNIC_INTR_DEFAULT; | |
763 | adapter->coal.normal.data.rx_time_us = | |
764 | QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US; | |
765 | adapter->coal.normal.data.rx_packets = | |
766 | QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS; | |
767 | adapter->coal.normal.data.tx_time_us = | |
768 | QLCNIC_DEFAULT_INTR_COALESCE_TX_TIME_US; | |
769 | adapter->coal.normal.data.tx_packets = | |
770 | QLCNIC_DEFAULT_INTR_COALESCE_TX_PACKETS; | |
771 | } | |
772 | ||
773 | static int | |
774 | __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev) | |
775 | { | |
776 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
777 | return -EIO; | |
778 | ||
779 | qlcnic_set_multi(netdev); | |
780 | qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu); | |
781 | ||
782 | adapter->ahw.linkup = 0; | |
783 | ||
784 | if (adapter->max_sds_rings > 1) | |
785 | qlcnic_config_rss(adapter, 1); | |
786 | ||
787 | qlcnic_config_intr_coalesce(adapter); | |
788 | ||
789 | if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO) | |
790 | qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED); | |
791 | ||
792 | qlcnic_napi_enable(adapter); | |
793 | ||
794 | qlcnic_linkevent_request(adapter, 1); | |
795 | ||
796 | set_bit(__QLCNIC_DEV_UP, &adapter->state); | |
797 | return 0; | |
798 | } | |
799 | ||
800 | /* Usage: During resume and firmware recovery module.*/ | |
801 | ||
802 | static int | |
803 | qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev) | |
804 | { | |
805 | int err = 0; | |
806 | ||
807 | rtnl_lock(); | |
808 | if (netif_running(netdev)) | |
809 | err = __qlcnic_up(adapter, netdev); | |
810 | rtnl_unlock(); | |
811 | ||
812 | return err; | |
813 | } | |
814 | ||
815 | static void | |
816 | __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev) | |
817 | { | |
818 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
819 | return; | |
820 | ||
821 | if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state)) | |
822 | return; | |
823 | ||
824 | smp_mb(); | |
825 | spin_lock(&adapter->tx_clean_lock); | |
826 | netif_carrier_off(netdev); | |
827 | netif_tx_disable(netdev); | |
828 | ||
829 | qlcnic_free_mac_list(adapter); | |
830 | ||
831 | qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE); | |
832 | ||
833 | qlcnic_napi_disable(adapter); | |
834 | ||
835 | qlcnic_release_tx_buffers(adapter); | |
836 | spin_unlock(&adapter->tx_clean_lock); | |
837 | } | |
838 | ||
839 | /* Usage: During suspend and firmware recovery module */ | |
840 | ||
841 | static void | |
842 | qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev) | |
843 | { | |
844 | rtnl_lock(); | |
845 | if (netif_running(netdev)) | |
846 | __qlcnic_down(adapter, netdev); | |
847 | rtnl_unlock(); | |
848 | ||
849 | } | |
850 | ||
851 | static int | |
852 | qlcnic_attach(struct qlcnic_adapter *adapter) | |
853 | { | |
854 | struct net_device *netdev = adapter->netdev; | |
855 | struct pci_dev *pdev = adapter->pdev; | |
856 | int err, ring; | |
857 | struct qlcnic_host_rds_ring *rds_ring; | |
858 | ||
859 | if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) | |
860 | return 0; | |
861 | ||
862 | err = qlcnic_init_firmware(adapter); | |
863 | if (err) | |
864 | return err; | |
865 | ||
866 | err = qlcnic_napi_add(adapter, netdev); | |
867 | if (err) | |
868 | return err; | |
869 | ||
870 | err = qlcnic_alloc_sw_resources(adapter); | |
871 | if (err) { | |
872 | dev_err(&pdev->dev, "Error in setting sw resources\n"); | |
873 | return err; | |
874 | } | |
875 | ||
876 | err = qlcnic_alloc_hw_resources(adapter); | |
877 | if (err) { | |
878 | dev_err(&pdev->dev, "Error in setting hw resources\n"); | |
879 | goto err_out_free_sw; | |
880 | } | |
881 | ||
882 | ||
883 | for (ring = 0; ring < adapter->max_rds_rings; ring++) { | |
884 | rds_ring = &adapter->recv_ctx.rds_rings[ring]; | |
885 | qlcnic_post_rx_buffers(adapter, ring, rds_ring); | |
886 | } | |
887 | ||
888 | err = qlcnic_request_irq(adapter); | |
889 | if (err) { | |
890 | dev_err(&pdev->dev, "failed to setup interrupt\n"); | |
891 | goto err_out_free_rxbuf; | |
892 | } | |
893 | ||
894 | qlcnic_init_coalesce_defaults(adapter); | |
895 | ||
896 | qlcnic_create_sysfs_entries(adapter); | |
897 | ||
898 | adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC; | |
899 | return 0; | |
900 | ||
901 | err_out_free_rxbuf: | |
902 | qlcnic_release_rx_buffers(adapter); | |
903 | qlcnic_free_hw_resources(adapter); | |
904 | err_out_free_sw: | |
905 | qlcnic_free_sw_resources(adapter); | |
906 | return err; | |
907 | } | |
908 | ||
909 | static void | |
910 | qlcnic_detach(struct qlcnic_adapter *adapter) | |
911 | { | |
912 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
913 | return; | |
914 | ||
915 | qlcnic_remove_sysfs_entries(adapter); | |
916 | ||
917 | qlcnic_free_hw_resources(adapter); | |
918 | qlcnic_release_rx_buffers(adapter); | |
919 | qlcnic_free_irq(adapter); | |
920 | qlcnic_napi_del(adapter); | |
921 | qlcnic_free_sw_resources(adapter); | |
922 | ||
923 | adapter->is_up = 0; | |
924 | } | |
925 | ||
926 | int | |
927 | qlcnic_reset_context(struct qlcnic_adapter *adapter) | |
928 | { | |
929 | int err = 0; | |
930 | struct net_device *netdev = adapter->netdev; | |
931 | ||
932 | if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) | |
933 | return -EBUSY; | |
934 | ||
935 | if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) { | |
936 | ||
937 | netif_device_detach(netdev); | |
938 | ||
939 | if (netif_running(netdev)) | |
940 | __qlcnic_down(adapter, netdev); | |
941 | ||
942 | qlcnic_detach(adapter); | |
943 | ||
944 | if (netif_running(netdev)) { | |
945 | err = qlcnic_attach(adapter); | |
946 | if (!err) | |
947 | err = __qlcnic_up(adapter, netdev); | |
948 | ||
949 | if (err) | |
950 | goto done; | |
951 | } | |
952 | ||
953 | netif_device_attach(netdev); | |
954 | } | |
955 | ||
956 | done: | |
957 | clear_bit(__QLCNIC_RESETTING, &adapter->state); | |
958 | return err; | |
959 | } | |
960 | ||
961 | static int | |
962 | qlcnic_setup_netdev(struct qlcnic_adapter *adapter, | |
963 | struct net_device *netdev) | |
964 | { | |
965 | int err; | |
966 | struct pci_dev *pdev = adapter->pdev; | |
967 | ||
968 | adapter->rx_csum = 1; | |
969 | adapter->mc_enabled = 0; | |
970 | adapter->max_mc_count = 38; | |
971 | ||
972 | netdev->netdev_ops = &qlcnic_netdev_ops; | |
973 | netdev->watchdog_timeo = 2*HZ; | |
974 | ||
975 | qlcnic_change_mtu(netdev, netdev->mtu); | |
976 | ||
977 | SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops); | |
978 | ||
979 | netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO); | |
980 | netdev->features |= (NETIF_F_GRO); | |
981 | netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO); | |
982 | ||
983 | netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6); | |
984 | netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6); | |
985 | ||
986 | if (adapter->pci_using_dac) { | |
987 | netdev->features |= NETIF_F_HIGHDMA; | |
988 | netdev->vlan_features |= NETIF_F_HIGHDMA; | |
989 | } | |
990 | ||
991 | if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX) | |
992 | netdev->features |= (NETIF_F_HW_VLAN_TX); | |
993 | ||
994 | if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO) | |
995 | netdev->features |= NETIF_F_LRO; | |
996 | ||
997 | netdev->irq = adapter->msix_entries[0].vector; | |
998 | ||
999 | INIT_WORK(&adapter->tx_timeout_task, qlcnic_tx_timeout_task); | |
1000 | ||
1001 | if (qlcnic_read_mac_addr(adapter)) | |
1002 | dev_warn(&pdev->dev, "failed to read mac addr\n"); | |
1003 | ||
1004 | netif_carrier_off(netdev); | |
1005 | netif_stop_queue(netdev); | |
1006 | ||
1007 | err = register_netdev(netdev); | |
1008 | if (err) { | |
1009 | dev_err(&pdev->dev, "failed to register net device\n"); | |
1010 | return err; | |
1011 | } | |
1012 | ||
1013 | return 0; | |
1014 | } | |
1015 | ||
1016 | static int __devinit | |
1017 | qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
1018 | { | |
1019 | struct net_device *netdev = NULL; | |
1020 | struct qlcnic_adapter *adapter = NULL; | |
1021 | int err; | |
1022 | int pci_func_id = PCI_FUNC(pdev->devfn); | |
1023 | uint8_t revision_id; | |
1024 | ||
1025 | err = pci_enable_device(pdev); | |
1026 | if (err) | |
1027 | return err; | |
1028 | ||
1029 | if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { | |
1030 | err = -ENODEV; | |
1031 | goto err_out_disable_pdev; | |
1032 | } | |
1033 | ||
1034 | err = pci_request_regions(pdev, qlcnic_driver_name); | |
1035 | if (err) | |
1036 | goto err_out_disable_pdev; | |
1037 | ||
1038 | pci_set_master(pdev); | |
1039 | ||
1040 | netdev = alloc_etherdev(sizeof(struct qlcnic_adapter)); | |
1041 | if (!netdev) { | |
1042 | dev_err(&pdev->dev, "failed to allocate net_device\n"); | |
1043 | err = -ENOMEM; | |
1044 | goto err_out_free_res; | |
1045 | } | |
1046 | ||
1047 | SET_NETDEV_DEV(netdev, &pdev->dev); | |
1048 | ||
1049 | adapter = netdev_priv(netdev); | |
1050 | adapter->netdev = netdev; | |
1051 | adapter->pdev = pdev; | |
1052 | adapter->ahw.pci_func = pci_func_id; | |
1053 | ||
1054 | revision_id = pdev->revision; | |
1055 | adapter->ahw.revision_id = revision_id; | |
1056 | ||
1057 | rwlock_init(&adapter->ahw.crb_lock); | |
1058 | mutex_init(&adapter->ahw.mem_lock); | |
1059 | ||
1060 | spin_lock_init(&adapter->tx_clean_lock); | |
1061 | INIT_LIST_HEAD(&adapter->mac_list); | |
1062 | ||
1063 | err = qlcnic_setup_pci_map(adapter); | |
1064 | if (err) | |
1065 | goto err_out_free_netdev; | |
1066 | ||
1067 | /* This will be reset for mezz cards */ | |
1068 | adapter->portnum = pci_func_id; | |
1069 | ||
1070 | err = qlcnic_get_board_info(adapter); | |
1071 | if (err) { | |
1072 | dev_err(&pdev->dev, "Error getting board config info.\n"); | |
1073 | goto err_out_iounmap; | |
1074 | } | |
1075 | ||
1076 | ||
1077 | err = qlcnic_start_firmware(adapter); | |
1078 | if (err) | |
1079 | goto err_out_decr_ref; | |
1080 | ||
1081 | /* | |
1082 | * See if the firmware gave us a virtual-physical port mapping. | |
1083 | */ | |
1084 | adapter->physical_port = adapter->portnum; | |
1085 | ||
1086 | qlcnic_clear_stats(adapter); | |
1087 | ||
1088 | qlcnic_setup_intr(adapter); | |
1089 | ||
1090 | err = qlcnic_setup_netdev(adapter, netdev); | |
1091 | if (err) | |
1092 | goto err_out_disable_msi; | |
1093 | ||
1094 | pci_set_drvdata(pdev, adapter); | |
1095 | ||
1096 | qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); | |
1097 | ||
1098 | switch (adapter->ahw.port_type) { | |
1099 | case QLCNIC_GBE: | |
1100 | dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", | |
1101 | adapter->netdev->name); | |
1102 | break; | |
1103 | case QLCNIC_XGBE: | |
1104 | dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", | |
1105 | adapter->netdev->name); | |
1106 | break; | |
1107 | } | |
1108 | ||
1109 | qlcnic_create_diag_entries(adapter); | |
1110 | ||
1111 | return 0; | |
1112 | ||
1113 | err_out_disable_msi: | |
1114 | qlcnic_teardown_intr(adapter); | |
1115 | ||
1116 | err_out_decr_ref: | |
1117 | qlcnic_clr_all_drv_state(adapter); | |
1118 | ||
1119 | err_out_iounmap: | |
1120 | qlcnic_cleanup_pci_map(adapter); | |
1121 | ||
1122 | err_out_free_netdev: | |
1123 | free_netdev(netdev); | |
1124 | ||
1125 | err_out_free_res: | |
1126 | pci_release_regions(pdev); | |
1127 | ||
1128 | err_out_disable_pdev: | |
1129 | pci_set_drvdata(pdev, NULL); | |
1130 | pci_disable_device(pdev); | |
1131 | return err; | |
1132 | } | |
1133 | ||
1134 | static void __devexit qlcnic_remove(struct pci_dev *pdev) | |
1135 | { | |
1136 | struct qlcnic_adapter *adapter; | |
1137 | struct net_device *netdev; | |
1138 | ||
1139 | adapter = pci_get_drvdata(pdev); | |
1140 | if (adapter == NULL) | |
1141 | return; | |
1142 | ||
1143 | netdev = adapter->netdev; | |
1144 | ||
1145 | qlcnic_cancel_fw_work(adapter); | |
1146 | ||
1147 | unregister_netdev(netdev); | |
1148 | ||
1149 | cancel_work_sync(&adapter->tx_timeout_task); | |
1150 | ||
1151 | qlcnic_detach(adapter); | |
1152 | ||
1153 | qlcnic_clr_all_drv_state(adapter); | |
1154 | ||
1155 | clear_bit(__QLCNIC_RESETTING, &adapter->state); | |
1156 | ||
1157 | qlcnic_teardown_intr(adapter); | |
1158 | ||
1159 | qlcnic_remove_diag_entries(adapter); | |
1160 | ||
1161 | qlcnic_cleanup_pci_map(adapter); | |
1162 | ||
1163 | qlcnic_release_firmware(adapter); | |
1164 | ||
1165 | pci_release_regions(pdev); | |
1166 | pci_disable_device(pdev); | |
1167 | pci_set_drvdata(pdev, NULL); | |
1168 | ||
1169 | free_netdev(netdev); | |
1170 | } | |
1171 | static int __qlcnic_shutdown(struct pci_dev *pdev) | |
1172 | { | |
1173 | struct qlcnic_adapter *adapter = pci_get_drvdata(pdev); | |
1174 | struct net_device *netdev = adapter->netdev; | |
1175 | int retval; | |
1176 | ||
1177 | netif_device_detach(netdev); | |
1178 | ||
1179 | qlcnic_cancel_fw_work(adapter); | |
1180 | ||
1181 | if (netif_running(netdev)) | |
1182 | qlcnic_down(adapter, netdev); | |
1183 | ||
1184 | cancel_work_sync(&adapter->tx_timeout_task); | |
1185 | ||
1186 | qlcnic_detach(adapter); | |
1187 | ||
1188 | qlcnic_clr_all_drv_state(adapter); | |
1189 | ||
1190 | clear_bit(__QLCNIC_RESETTING, &adapter->state); | |
1191 | ||
1192 | retval = pci_save_state(pdev); | |
1193 | if (retval) | |
1194 | return retval; | |
1195 | ||
1196 | if (qlcnic_wol_supported(adapter)) { | |
1197 | pci_enable_wake(pdev, PCI_D3cold, 1); | |
1198 | pci_enable_wake(pdev, PCI_D3hot, 1); | |
1199 | } | |
1200 | ||
1201 | return 0; | |
1202 | } | |
1203 | ||
1204 | static void qlcnic_shutdown(struct pci_dev *pdev) | |
1205 | { | |
1206 | if (__qlcnic_shutdown(pdev)) | |
1207 | return; | |
1208 | ||
1209 | pci_disable_device(pdev); | |
1210 | } | |
1211 | ||
1212 | #ifdef CONFIG_PM | |
1213 | static int | |
1214 | qlcnic_suspend(struct pci_dev *pdev, pm_message_t state) | |
1215 | { | |
1216 | int retval; | |
1217 | ||
1218 | retval = __qlcnic_shutdown(pdev); | |
1219 | if (retval) | |
1220 | return retval; | |
1221 | ||
1222 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
1223 | return 0; | |
1224 | } | |
1225 | ||
1226 | static int | |
1227 | qlcnic_resume(struct pci_dev *pdev) | |
1228 | { | |
1229 | struct qlcnic_adapter *adapter = pci_get_drvdata(pdev); | |
1230 | struct net_device *netdev = adapter->netdev; | |
1231 | int err; | |
1232 | ||
1233 | err = pci_enable_device(pdev); | |
1234 | if (err) | |
1235 | return err; | |
1236 | ||
1237 | pci_set_power_state(pdev, PCI_D0); | |
1238 | pci_set_master(pdev); | |
1239 | pci_restore_state(pdev); | |
1240 | ||
1241 | adapter->ahw.crb_win = -1; | |
1242 | adapter->ahw.ocm_win = -1; | |
1243 | ||
1244 | err = qlcnic_start_firmware(adapter); | |
1245 | if (err) { | |
1246 | dev_err(&pdev->dev, "failed to start firmware\n"); | |
1247 | return err; | |
1248 | } | |
1249 | ||
1250 | if (netif_running(netdev)) { | |
1251 | err = qlcnic_attach(adapter); | |
1252 | if (err) | |
1253 | goto err_out; | |
1254 | ||
1255 | err = qlcnic_up(adapter, netdev); | |
1256 | if (err) | |
1257 | goto err_out_detach; | |
1258 | ||
1259 | ||
1260 | qlcnic_config_indev_addr(netdev, NETDEV_UP); | |
1261 | } | |
1262 | ||
1263 | netif_device_attach(netdev); | |
1264 | qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); | |
1265 | return 0; | |
1266 | ||
1267 | err_out_detach: | |
1268 | qlcnic_detach(adapter); | |
1269 | err_out: | |
1270 | qlcnic_clr_all_drv_state(adapter); | |
1271 | return err; | |
1272 | } | |
1273 | #endif | |
1274 | ||
1275 | static int qlcnic_open(struct net_device *netdev) | |
1276 | { | |
1277 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
1278 | int err; | |
1279 | ||
1280 | if (adapter->driver_mismatch) | |
1281 | return -EIO; | |
1282 | ||
1283 | err = qlcnic_attach(adapter); | |
1284 | if (err) | |
1285 | return err; | |
1286 | ||
1287 | err = __qlcnic_up(adapter, netdev); | |
1288 | if (err) | |
1289 | goto err_out; | |
1290 | ||
1291 | netif_start_queue(netdev); | |
1292 | ||
1293 | return 0; | |
1294 | ||
1295 | err_out: | |
1296 | qlcnic_detach(adapter); | |
1297 | return err; | |
1298 | } | |
1299 | ||
1300 | /* | |
1301 | * qlcnic_close - Disables a network interface entry point | |
1302 | */ | |
1303 | static int qlcnic_close(struct net_device *netdev) | |
1304 | { | |
1305 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
1306 | ||
1307 | __qlcnic_down(adapter, netdev); | |
1308 | return 0; | |
1309 | } | |
1310 | ||
1311 | static void | |
1312 | qlcnic_tso_check(struct net_device *netdev, | |
1313 | struct qlcnic_host_tx_ring *tx_ring, | |
1314 | struct cmd_desc_type0 *first_desc, | |
1315 | struct sk_buff *skb) | |
1316 | { | |
1317 | u8 opcode = TX_ETHER_PKT; | |
1318 | __be16 protocol = skb->protocol; | |
1319 | u16 flags = 0, vid = 0; | |
1320 | u32 producer; | |
1321 | int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0; | |
1322 | struct cmd_desc_type0 *hwdesc; | |
1323 | struct vlan_ethhdr *vh; | |
1324 | ||
1325 | if (protocol == cpu_to_be16(ETH_P_8021Q)) { | |
1326 | ||
1327 | vh = (struct vlan_ethhdr *)skb->data; | |
1328 | protocol = vh->h_vlan_encapsulated_proto; | |
1329 | flags = FLAGS_VLAN_TAGGED; | |
1330 | ||
1331 | } else if (vlan_tx_tag_present(skb)) { | |
1332 | ||
1333 | flags = FLAGS_VLAN_OOB; | |
1334 | vid = vlan_tx_tag_get(skb); | |
1335 | qlcnic_set_tx_vlan_tci(first_desc, vid); | |
1336 | vlan_oob = 1; | |
1337 | } | |
1338 | ||
1339 | if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && | |
1340 | skb_shinfo(skb)->gso_size > 0) { | |
1341 | ||
1342 | hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); | |
1343 | ||
1344 | first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); | |
1345 | first_desc->total_hdr_length = hdr_len; | |
1346 | if (vlan_oob) { | |
1347 | first_desc->total_hdr_length += VLAN_HLEN; | |
1348 | first_desc->tcp_hdr_offset = VLAN_HLEN; | |
1349 | first_desc->ip_hdr_offset = VLAN_HLEN; | |
1350 | /* Only in case of TSO on vlan device */ | |
1351 | flags |= FLAGS_VLAN_TAGGED; | |
1352 | } | |
1353 | ||
1354 | opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ? | |
1355 | TX_TCP_LSO6 : TX_TCP_LSO; | |
1356 | tso = 1; | |
1357 | ||
1358 | } else if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
1359 | u8 l4proto; | |
1360 | ||
1361 | if (protocol == cpu_to_be16(ETH_P_IP)) { | |
1362 | l4proto = ip_hdr(skb)->protocol; | |
1363 | ||
1364 | if (l4proto == IPPROTO_TCP) | |
1365 | opcode = TX_TCP_PKT; | |
1366 | else if (l4proto == IPPROTO_UDP) | |
1367 | opcode = TX_UDP_PKT; | |
1368 | } else if (protocol == cpu_to_be16(ETH_P_IPV6)) { | |
1369 | l4proto = ipv6_hdr(skb)->nexthdr; | |
1370 | ||
1371 | if (l4proto == IPPROTO_TCP) | |
1372 | opcode = TX_TCPV6_PKT; | |
1373 | else if (l4proto == IPPROTO_UDP) | |
1374 | opcode = TX_UDPV6_PKT; | |
1375 | } | |
1376 | } | |
1377 | ||
1378 | first_desc->tcp_hdr_offset += skb_transport_offset(skb); | |
1379 | first_desc->ip_hdr_offset += skb_network_offset(skb); | |
1380 | qlcnic_set_tx_flags_opcode(first_desc, flags, opcode); | |
1381 | ||
1382 | if (!tso) | |
1383 | return; | |
1384 | ||
1385 | /* For LSO, we need to copy the MAC/IP/TCP headers into | |
1386 | * the descriptor ring | |
1387 | */ | |
1388 | producer = tx_ring->producer; | |
1389 | copied = 0; | |
1390 | offset = 2; | |
1391 | ||
1392 | if (vlan_oob) { | |
1393 | /* Create a TSO vlan header template for firmware */ | |
1394 | ||
1395 | hwdesc = &tx_ring->desc_head[producer]; | |
1396 | tx_ring->cmd_buf_arr[producer].skb = NULL; | |
1397 | ||
1398 | copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, | |
1399 | hdr_len + VLAN_HLEN); | |
1400 | ||
1401 | vh = (struct vlan_ethhdr *)((char *)hwdesc + 2); | |
1402 | skb_copy_from_linear_data(skb, vh, 12); | |
1403 | vh->h_vlan_proto = htons(ETH_P_8021Q); | |
1404 | vh->h_vlan_TCI = htons(vid); | |
1405 | skb_copy_from_linear_data_offset(skb, 12, | |
1406 | (char *)vh + 16, copy_len - 16); | |
1407 | ||
1408 | copied = copy_len - VLAN_HLEN; | |
1409 | offset = 0; | |
1410 | ||
1411 | producer = get_next_index(producer, tx_ring->num_desc); | |
1412 | } | |
1413 | ||
1414 | while (copied < hdr_len) { | |
1415 | ||
1416 | copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, | |
1417 | (hdr_len - copied)); | |
1418 | ||
1419 | hwdesc = &tx_ring->desc_head[producer]; | |
1420 | tx_ring->cmd_buf_arr[producer].skb = NULL; | |
1421 | ||
1422 | skb_copy_from_linear_data_offset(skb, copied, | |
1423 | (char *)hwdesc + offset, copy_len); | |
1424 | ||
1425 | copied += copy_len; | |
1426 | offset = 0; | |
1427 | ||
1428 | producer = get_next_index(producer, tx_ring->num_desc); | |
1429 | } | |
1430 | ||
1431 | tx_ring->producer = producer; | |
1432 | barrier(); | |
1433 | } | |
1434 | ||
1435 | static int | |
1436 | qlcnic_map_tx_skb(struct pci_dev *pdev, | |
1437 | struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf) | |
1438 | { | |
1439 | struct qlcnic_skb_frag *nf; | |
1440 | struct skb_frag_struct *frag; | |
1441 | int i, nr_frags; | |
1442 | dma_addr_t map; | |
1443 | ||
1444 | nr_frags = skb_shinfo(skb)->nr_frags; | |
1445 | nf = &pbuf->frag_array[0]; | |
1446 | ||
1447 | map = pci_map_single(pdev, skb->data, | |
1448 | skb_headlen(skb), PCI_DMA_TODEVICE); | |
1449 | if (pci_dma_mapping_error(pdev, map)) | |
1450 | goto out_err; | |
1451 | ||
1452 | nf->dma = map; | |
1453 | nf->length = skb_headlen(skb); | |
1454 | ||
1455 | for (i = 0; i < nr_frags; i++) { | |
1456 | frag = &skb_shinfo(skb)->frags[i]; | |
1457 | nf = &pbuf->frag_array[i+1]; | |
1458 | ||
1459 | map = pci_map_page(pdev, frag->page, frag->page_offset, | |
1460 | frag->size, PCI_DMA_TODEVICE); | |
1461 | if (pci_dma_mapping_error(pdev, map)) | |
1462 | goto unwind; | |
1463 | ||
1464 | nf->dma = map; | |
1465 | nf->length = frag->size; | |
1466 | } | |
1467 | ||
1468 | return 0; | |
1469 | ||
1470 | unwind: | |
1471 | while (--i >= 0) { | |
1472 | nf = &pbuf->frag_array[i+1]; | |
1473 | pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); | |
1474 | } | |
1475 | ||
1476 | nf = &pbuf->frag_array[0]; | |
1477 | pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); | |
1478 | ||
1479 | out_err: | |
1480 | return -ENOMEM; | |
1481 | } | |
1482 | ||
1483 | static inline void | |
1484 | qlcnic_clear_cmddesc(u64 *desc) | |
1485 | { | |
1486 | desc[0] = 0ULL; | |
1487 | desc[2] = 0ULL; | |
1488 | } | |
1489 | ||
1490 | static netdev_tx_t | |
1491 | qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) | |
1492 | { | |
1493 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
1494 | struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring; | |
1495 | struct qlcnic_cmd_buffer *pbuf; | |
1496 | struct qlcnic_skb_frag *buffrag; | |
1497 | struct cmd_desc_type0 *hwdesc, *first_desc; | |
1498 | struct pci_dev *pdev; | |
1499 | int i, k; | |
1500 | ||
1501 | u32 producer; | |
1502 | int frag_count, no_of_desc; | |
1503 | u32 num_txd = tx_ring->num_desc; | |
1504 | ||
1505 | frag_count = skb_shinfo(skb)->nr_frags + 1; | |
1506 | ||
1507 | /* 4 fragments per cmd des */ | |
1508 | no_of_desc = (frag_count + 3) >> 2; | |
1509 | ||
1510 | if (unlikely(no_of_desc + 2 > qlcnic_tx_avail(tx_ring))) { | |
1511 | netif_stop_queue(netdev); | |
1512 | return NETDEV_TX_BUSY; | |
1513 | } | |
1514 | ||
1515 | producer = tx_ring->producer; | |
1516 | pbuf = &tx_ring->cmd_buf_arr[producer]; | |
1517 | ||
1518 | pdev = adapter->pdev; | |
1519 | ||
1520 | if (qlcnic_map_tx_skb(pdev, skb, pbuf)) | |
1521 | goto drop_packet; | |
1522 | ||
1523 | pbuf->skb = skb; | |
1524 | pbuf->frag_count = frag_count; | |
1525 | ||
1526 | first_desc = hwdesc = &tx_ring->desc_head[producer]; | |
1527 | qlcnic_clear_cmddesc((u64 *)hwdesc); | |
1528 | ||
1529 | qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len); | |
1530 | qlcnic_set_tx_port(first_desc, adapter->portnum); | |
1531 | ||
1532 | for (i = 0; i < frag_count; i++) { | |
1533 | ||
1534 | k = i % 4; | |
1535 | ||
1536 | if ((k == 0) && (i > 0)) { | |
1537 | /* move to next desc.*/ | |
1538 | producer = get_next_index(producer, num_txd); | |
1539 | hwdesc = &tx_ring->desc_head[producer]; | |
1540 | qlcnic_clear_cmddesc((u64 *)hwdesc); | |
1541 | tx_ring->cmd_buf_arr[producer].skb = NULL; | |
1542 | } | |
1543 | ||
1544 | buffrag = &pbuf->frag_array[i]; | |
1545 | ||
1546 | hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length); | |
1547 | switch (k) { | |
1548 | case 0: | |
1549 | hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); | |
1550 | break; | |
1551 | case 1: | |
1552 | hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma); | |
1553 | break; | |
1554 | case 2: | |
1555 | hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma); | |
1556 | break; | |
1557 | case 3: | |
1558 | hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma); | |
1559 | break; | |
1560 | } | |
1561 | } | |
1562 | ||
1563 | tx_ring->producer = get_next_index(producer, num_txd); | |
1564 | ||
1565 | qlcnic_tso_check(netdev, tx_ring, first_desc, skb); | |
1566 | ||
1567 | qlcnic_update_cmd_producer(adapter, tx_ring); | |
1568 | ||
1569 | adapter->stats.txbytes += skb->len; | |
1570 | adapter->stats.xmitcalled++; | |
1571 | ||
1572 | return NETDEV_TX_OK; | |
1573 | ||
1574 | drop_packet: | |
1575 | adapter->stats.txdropped++; | |
1576 | dev_kfree_skb_any(skb); | |
1577 | return NETDEV_TX_OK; | |
1578 | } | |
1579 | ||
1580 | static int qlcnic_check_temp(struct qlcnic_adapter *adapter) | |
1581 | { | |
1582 | struct net_device *netdev = adapter->netdev; | |
1583 | u32 temp, temp_state, temp_val; | |
1584 | int rv = 0; | |
1585 | ||
1586 | temp = QLCRD32(adapter, CRB_TEMP_STATE); | |
1587 | ||
1588 | temp_state = qlcnic_get_temp_state(temp); | |
1589 | temp_val = qlcnic_get_temp_val(temp); | |
1590 | ||
1591 | if (temp_state == QLCNIC_TEMP_PANIC) { | |
1592 | dev_err(&netdev->dev, | |
1593 | "Device temperature %d degrees C exceeds" | |
1594 | " maximum allowed. Hardware has been shut down.\n", | |
1595 | temp_val); | |
1596 | rv = 1; | |
1597 | } else if (temp_state == QLCNIC_TEMP_WARN) { | |
1598 | if (adapter->temp == QLCNIC_TEMP_NORMAL) { | |
1599 | dev_err(&netdev->dev, | |
1600 | "Device temperature %d degrees C " | |
1601 | "exceeds operating range." | |
1602 | " Immediate action needed.\n", | |
1603 | temp_val); | |
1604 | } | |
1605 | } else { | |
1606 | if (adapter->temp == QLCNIC_TEMP_WARN) { | |
1607 | dev_info(&netdev->dev, | |
1608 | "Device temperature is now %d degrees C" | |
1609 | " in normal range.\n", temp_val); | |
1610 | } | |
1611 | } | |
1612 | adapter->temp = temp_state; | |
1613 | return rv; | |
1614 | } | |
1615 | ||
1616 | void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup) | |
1617 | { | |
1618 | struct net_device *netdev = adapter->netdev; | |
1619 | ||
1620 | if (adapter->ahw.linkup && !linkup) { | |
1621 | dev_info(&netdev->dev, "NIC Link is down\n"); | |
1622 | adapter->ahw.linkup = 0; | |
1623 | if (netif_running(netdev)) { | |
1624 | netif_carrier_off(netdev); | |
1625 | netif_stop_queue(netdev); | |
1626 | } | |
1627 | } else if (!adapter->ahw.linkup && linkup) { | |
1628 | dev_info(&netdev->dev, "NIC Link is up\n"); | |
1629 | adapter->ahw.linkup = 1; | |
1630 | if (netif_running(netdev)) { | |
1631 | netif_carrier_on(netdev); | |
1632 | netif_wake_queue(netdev); | |
1633 | } | |
1634 | } | |
1635 | } | |
1636 | ||
1637 | static void qlcnic_tx_timeout(struct net_device *netdev) | |
1638 | { | |
1639 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
1640 | ||
1641 | if (test_bit(__QLCNIC_RESETTING, &adapter->state)) | |
1642 | return; | |
1643 | ||
1644 | dev_err(&netdev->dev, "transmit timeout, resetting.\n"); | |
1645 | schedule_work(&adapter->tx_timeout_task); | |
1646 | } | |
1647 | ||
1648 | static void qlcnic_tx_timeout_task(struct work_struct *work) | |
1649 | { | |
1650 | struct qlcnic_adapter *adapter = | |
1651 | container_of(work, struct qlcnic_adapter, tx_timeout_task); | |
1652 | ||
1653 | if (!netif_running(adapter->netdev)) | |
1654 | return; | |
1655 | ||
1656 | if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) | |
1657 | return; | |
1658 | ||
1659 | if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) | |
1660 | goto request_reset; | |
1661 | ||
1662 | clear_bit(__QLCNIC_RESETTING, &adapter->state); | |
1663 | if (!qlcnic_reset_context(adapter)) { | |
1664 | adapter->netdev->trans_start = jiffies; | |
1665 | return; | |
1666 | ||
1667 | /* context reset failed, fall through for fw reset */ | |
1668 | } | |
1669 | ||
1670 | request_reset: | |
1671 | adapter->need_fw_reset = 1; | |
1672 | clear_bit(__QLCNIC_RESETTING, &adapter->state); | |
1673 | } | |
1674 | ||
1675 | static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev) | |
1676 | { | |
1677 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
1678 | struct net_device_stats *stats = &netdev->stats; | |
1679 | ||
1680 | memset(stats, 0, sizeof(*stats)); | |
1681 | ||
1682 | stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts; | |
1683 | stats->tx_packets = adapter->stats.xmitfinished; | |
1684 | stats->rx_bytes = adapter->stats.rxbytes; | |
1685 | stats->tx_bytes = adapter->stats.txbytes; | |
1686 | stats->rx_dropped = adapter->stats.rxdropped; | |
1687 | stats->tx_dropped = adapter->stats.txdropped; | |
1688 | ||
1689 | return stats; | |
1690 | } | |
1691 | ||
1692 | static irqreturn_t qlcnic_intr(int irq, void *data) | |
1693 | { | |
1694 | struct qlcnic_host_sds_ring *sds_ring = data; | |
1695 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
1696 | u32 status; | |
1697 | ||
1698 | status = readl(adapter->isr_int_vec); | |
1699 | ||
1700 | if (!(status & adapter->int_vec_bit)) | |
1701 | return IRQ_NONE; | |
1702 | ||
1703 | /* check interrupt state machine, to be sure */ | |
1704 | status = readl(adapter->crb_int_state_reg); | |
1705 | if (!ISR_LEGACY_INT_TRIGGERED(status)) | |
1706 | return IRQ_NONE; | |
1707 | ||
1708 | writel(0xffffffff, adapter->tgt_status_reg); | |
1709 | /* read twice to ensure write is flushed */ | |
1710 | readl(adapter->isr_int_vec); | |
1711 | readl(adapter->isr_int_vec); | |
1712 | ||
1713 | napi_schedule(&sds_ring->napi); | |
1714 | ||
1715 | return IRQ_HANDLED; | |
1716 | } | |
1717 | ||
1718 | static irqreturn_t qlcnic_msi_intr(int irq, void *data) | |
1719 | { | |
1720 | struct qlcnic_host_sds_ring *sds_ring = data; | |
1721 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
1722 | ||
1723 | /* clear interrupt */ | |
1724 | writel(0xffffffff, adapter->tgt_status_reg); | |
1725 | ||
1726 | napi_schedule(&sds_ring->napi); | |
1727 | return IRQ_HANDLED; | |
1728 | } | |
1729 | ||
1730 | static irqreturn_t qlcnic_msix_intr(int irq, void *data) | |
1731 | { | |
1732 | struct qlcnic_host_sds_ring *sds_ring = data; | |
1733 | ||
1734 | napi_schedule(&sds_ring->napi); | |
1735 | return IRQ_HANDLED; | |
1736 | } | |
1737 | ||
1738 | static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter) | |
1739 | { | |
1740 | u32 sw_consumer, hw_consumer; | |
1741 | int count = 0, i; | |
1742 | struct qlcnic_cmd_buffer *buffer; | |
1743 | struct pci_dev *pdev = adapter->pdev; | |
1744 | struct net_device *netdev = adapter->netdev; | |
1745 | struct qlcnic_skb_frag *frag; | |
1746 | int done; | |
1747 | struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring; | |
1748 | ||
1749 | if (!spin_trylock(&adapter->tx_clean_lock)) | |
1750 | return 1; | |
1751 | ||
1752 | sw_consumer = tx_ring->sw_consumer; | |
1753 | hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); | |
1754 | ||
1755 | while (sw_consumer != hw_consumer) { | |
1756 | buffer = &tx_ring->cmd_buf_arr[sw_consumer]; | |
1757 | if (buffer->skb) { | |
1758 | frag = &buffer->frag_array[0]; | |
1759 | pci_unmap_single(pdev, frag->dma, frag->length, | |
1760 | PCI_DMA_TODEVICE); | |
1761 | frag->dma = 0ULL; | |
1762 | for (i = 1; i < buffer->frag_count; i++) { | |
1763 | frag++; | |
1764 | pci_unmap_page(pdev, frag->dma, frag->length, | |
1765 | PCI_DMA_TODEVICE); | |
1766 | frag->dma = 0ULL; | |
1767 | } | |
1768 | ||
1769 | adapter->stats.xmitfinished++; | |
1770 | dev_kfree_skb_any(buffer->skb); | |
1771 | buffer->skb = NULL; | |
1772 | } | |
1773 | ||
1774 | sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc); | |
1775 | if (++count >= MAX_STATUS_HANDLE) | |
1776 | break; | |
1777 | } | |
1778 | ||
1779 | if (count && netif_running(netdev)) { | |
1780 | tx_ring->sw_consumer = sw_consumer; | |
1781 | ||
1782 | smp_mb(); | |
1783 | ||
1784 | if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) { | |
1785 | __netif_tx_lock(tx_ring->txq, smp_processor_id()); | |
1786 | if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) { | |
1787 | netif_wake_queue(netdev); | |
1788 | adapter->tx_timeo_cnt = 0; | |
1789 | } | |
1790 | __netif_tx_unlock(tx_ring->txq); | |
1791 | } | |
1792 | } | |
1793 | /* | |
1794 | * If everything is freed up to consumer then check if the ring is full | |
1795 | * If the ring is full then check if more needs to be freed and | |
1796 | * schedule the call back again. | |
1797 | * | |
1798 | * This happens when there are 2 CPUs. One could be freeing and the | |
1799 | * other filling it. If the ring is full when we get out of here and | |
1800 | * the card has already interrupted the host then the host can miss the | |
1801 | * interrupt. | |
1802 | * | |
1803 | * There is still a possible race condition and the host could miss an | |
1804 | * interrupt. The card has to take care of this. | |
1805 | */ | |
1806 | hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); | |
1807 | done = (sw_consumer == hw_consumer); | |
1808 | spin_unlock(&adapter->tx_clean_lock); | |
1809 | ||
1810 | return done; | |
1811 | } | |
1812 | ||
1813 | static int qlcnic_poll(struct napi_struct *napi, int budget) | |
1814 | { | |
1815 | struct qlcnic_host_sds_ring *sds_ring = | |
1816 | container_of(napi, struct qlcnic_host_sds_ring, napi); | |
1817 | ||
1818 | struct qlcnic_adapter *adapter = sds_ring->adapter; | |
1819 | ||
1820 | int tx_complete; | |
1821 | int work_done; | |
1822 | ||
1823 | tx_complete = qlcnic_process_cmd_ring(adapter); | |
1824 | ||
1825 | work_done = qlcnic_process_rcv_ring(sds_ring, budget); | |
1826 | ||
1827 | if ((work_done < budget) && tx_complete) { | |
1828 | napi_complete(&sds_ring->napi); | |
1829 | if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) | |
1830 | qlcnic_enable_int(sds_ring); | |
1831 | } | |
1832 | ||
1833 | return work_done; | |
1834 | } | |
1835 | ||
1836 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1837 | static void qlcnic_poll_controller(struct net_device *netdev) | |
1838 | { | |
1839 | struct qlcnic_adapter *adapter = netdev_priv(netdev); | |
1840 | disable_irq(adapter->irq); | |
1841 | qlcnic_intr(adapter->irq, adapter); | |
1842 | enable_irq(adapter->irq); | |
1843 | } | |
1844 | #endif | |
1845 | ||
1846 | static void | |
1847 | qlcnic_set_drv_state(struct qlcnic_adapter *adapter, int state) | |
1848 | { | |
1849 | u32 val; | |
1850 | ||
1851 | WARN_ON(state != QLCNIC_DEV_NEED_RESET && | |
1852 | state != QLCNIC_DEV_NEED_QUISCENT); | |
1853 | ||
1854 | if (qlcnic_api_lock(adapter)) | |
1855 | return ; | |
1856 | ||
1857 | val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
1858 | ||
1859 | if (state == QLCNIC_DEV_NEED_RESET) | |
1860 | val |= ((u32)0x1 << (adapter->portnum * 4)); | |
1861 | else if (state == QLCNIC_DEV_NEED_QUISCENT) | |
1862 | val |= ((u32)0x1 << ((adapter->portnum * 4) + 1)); | |
1863 | ||
1864 | QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); | |
1865 | ||
1866 | qlcnic_api_unlock(adapter); | |
1867 | } | |
1868 | ||
1869 | static void | |
1870 | qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter) | |
1871 | { | |
1872 | u32 val; | |
1873 | ||
1874 | if (qlcnic_api_lock(adapter)) | |
1875 | goto err; | |
1876 | ||
1877 | val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT); | |
1878 | val &= ~((u32)0x1 << (adapter->portnum * 4)); | |
1879 | QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val); | |
1880 | ||
1881 | if (!(val & 0x11111111)) | |
1882 | QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD); | |
1883 | ||
1884 | val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
1885 | val &= ~((u32)0x3 << (adapter->portnum * 4)); | |
1886 | QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); | |
1887 | ||
1888 | qlcnic_api_unlock(adapter); | |
1889 | err: | |
1890 | adapter->fw_fail_cnt = 0; | |
1891 | clear_bit(__QLCNIC_START_FW, &adapter->state); | |
1892 | clear_bit(__QLCNIC_RESETTING, &adapter->state); | |
1893 | } | |
1894 | ||
1895 | static int | |
1896 | qlcnic_check_drv_state(struct qlcnic_adapter *adapter) | |
1897 | { | |
1898 | int act, state; | |
1899 | ||
1900 | state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
1901 | act = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT); | |
1902 | ||
1903 | if (((state & 0x11111111) == (act & 0x11111111)) || | |
1904 | ((act & 0x11111111) == ((state >> 1) & 0x11111111))) | |
1905 | return 0; | |
1906 | else | |
1907 | return 1; | |
1908 | } | |
1909 | ||
1910 | static int | |
1911 | qlcnic_can_start_firmware(struct qlcnic_adapter *adapter) | |
1912 | { | |
1913 | u32 val, prev_state; | |
1914 | int cnt = 0; | |
1915 | int portnum = adapter->portnum; | |
1916 | ||
1917 | if (qlcnic_api_lock(adapter)) | |
1918 | return -1; | |
1919 | ||
1920 | val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT); | |
1921 | if (!(val & ((int)0x1 << (portnum * 4)))) { | |
1922 | val |= ((u32)0x1 << (portnum * 4)); | |
1923 | QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val); | |
1924 | } else if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state)) { | |
1925 | goto start_fw; | |
1926 | } | |
1927 | ||
1928 | prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); | |
1929 | ||
1930 | switch (prev_state) { | |
1931 | case QLCNIC_DEV_COLD: | |
1932 | start_fw: | |
1933 | QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITALIZING); | |
1934 | qlcnic_api_unlock(adapter); | |
1935 | return 1; | |
1936 | ||
1937 | case QLCNIC_DEV_READY: | |
1938 | qlcnic_api_unlock(adapter); | |
1939 | return 0; | |
1940 | ||
1941 | case QLCNIC_DEV_NEED_RESET: | |
1942 | val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
1943 | val |= ((u32)0x1 << (portnum * 4)); | |
1944 | QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); | |
1945 | break; | |
1946 | ||
1947 | case QLCNIC_DEV_NEED_QUISCENT: | |
1948 | val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
1949 | val |= ((u32)0x1 << ((portnum * 4) + 1)); | |
1950 | QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); | |
1951 | break; | |
1952 | ||
1953 | case QLCNIC_DEV_FAILED: | |
1954 | qlcnic_api_unlock(adapter); | |
1955 | return -1; | |
1956 | } | |
1957 | ||
1958 | qlcnic_api_unlock(adapter); | |
1959 | msleep(1000); | |
1960 | while ((QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) != QLCNIC_DEV_READY) && | |
1961 | ++cnt < 20) | |
1962 | msleep(1000); | |
1963 | ||
1964 | if (cnt >= 20) | |
1965 | return -1; | |
1966 | ||
1967 | if (qlcnic_api_lock(adapter)) | |
1968 | return -1; | |
1969 | ||
1970 | val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); | |
1971 | val &= ~((u32)0x3 << (portnum * 4)); | |
1972 | QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); | |
1973 | ||
1974 | qlcnic_api_unlock(adapter); | |
1975 | ||
1976 | return 0; | |
1977 | } | |
1978 | ||
1979 | static void | |
1980 | qlcnic_fwinit_work(struct work_struct *work) | |
1981 | { | |
1982 | struct qlcnic_adapter *adapter = container_of(work, | |
1983 | struct qlcnic_adapter, fw_work.work); | |
1984 | int dev_state; | |
1985 | ||
1986 | if (++adapter->fw_wait_cnt > FW_POLL_THRESH) | |
1987 | goto err_ret; | |
1988 | ||
1989 | if (test_bit(__QLCNIC_START_FW, &adapter->state)) { | |
1990 | ||
1991 | if (qlcnic_check_drv_state(adapter)) { | |
1992 | qlcnic_schedule_work(adapter, | |
1993 | qlcnic_fwinit_work, FW_POLL_DELAY); | |
1994 | return; | |
1995 | } | |
1996 | ||
1997 | if (!qlcnic_start_firmware(adapter)) { | |
1998 | qlcnic_schedule_work(adapter, qlcnic_attach_work, 0); | |
1999 | return; | |
2000 | } | |
2001 | ||
2002 | goto err_ret; | |
2003 | } | |
2004 | ||
2005 | dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); | |
2006 | switch (dev_state) { | |
2007 | case QLCNIC_DEV_READY: | |
2008 | if (!qlcnic_start_firmware(adapter)) { | |
2009 | qlcnic_schedule_work(adapter, qlcnic_attach_work, 0); | |
2010 | return; | |
2011 | } | |
2012 | case QLCNIC_DEV_FAILED: | |
2013 | break; | |
2014 | ||
2015 | default: | |
2016 | qlcnic_schedule_work(adapter, | |
2017 | qlcnic_fwinit_work, 2 * FW_POLL_DELAY); | |
2018 | return; | |
2019 | } | |
2020 | ||
2021 | err_ret: | |
2022 | qlcnic_clr_all_drv_state(adapter); | |
2023 | } | |
2024 | ||
2025 | static void | |
2026 | qlcnic_detach_work(struct work_struct *work) | |
2027 | { | |
2028 | struct qlcnic_adapter *adapter = container_of(work, | |
2029 | struct qlcnic_adapter, fw_work.work); | |
2030 | struct net_device *netdev = adapter->netdev; | |
2031 | u32 status; | |
2032 | ||
2033 | netif_device_detach(netdev); | |
2034 | ||
2035 | qlcnic_down(adapter, netdev); | |
2036 | ||
2037 | qlcnic_detach(adapter); | |
2038 | ||
2039 | status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1); | |
2040 | ||
2041 | if (status & QLCNIC_RCODE_FATAL_ERROR) | |
2042 | goto err_ret; | |
2043 | ||
2044 | if (adapter->temp == QLCNIC_TEMP_PANIC) | |
2045 | goto err_ret; | |
2046 | ||
2047 | qlcnic_set_drv_state(adapter, adapter->dev_state); | |
2048 | ||
2049 | adapter->fw_wait_cnt = 0; | |
2050 | ||
2051 | qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY); | |
2052 | ||
2053 | return; | |
2054 | ||
2055 | err_ret: | |
2056 | qlcnic_clr_all_drv_state(adapter); | |
2057 | ||
2058 | } | |
2059 | ||
2060 | static void | |
2061 | qlcnic_dev_request_reset(struct qlcnic_adapter *adapter) | |
2062 | { | |
2063 | u32 state; | |
2064 | ||
2065 | if (qlcnic_api_lock(adapter)) | |
2066 | return; | |
2067 | ||
2068 | state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); | |
2069 | ||
2070 | if (state != QLCNIC_DEV_INITALIZING && state != QLCNIC_DEV_NEED_RESET) { | |
2071 | QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET); | |
2072 | set_bit(__QLCNIC_START_FW, &adapter->state); | |
2073 | } | |
2074 | ||
2075 | qlcnic_api_unlock(adapter); | |
2076 | } | |
2077 | ||
2078 | static void | |
2079 | qlcnic_schedule_work(struct qlcnic_adapter *adapter, | |
2080 | work_func_t func, int delay) | |
2081 | { | |
2082 | INIT_DELAYED_WORK(&adapter->fw_work, func); | |
2083 | schedule_delayed_work(&adapter->fw_work, round_jiffies_relative(delay)); | |
2084 | } | |
2085 | ||
2086 | static void | |
2087 | qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter) | |
2088 | { | |
2089 | while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) | |
2090 | msleep(10); | |
2091 | ||
2092 | cancel_delayed_work_sync(&adapter->fw_work); | |
2093 | } | |
2094 | ||
2095 | static void | |
2096 | qlcnic_attach_work(struct work_struct *work) | |
2097 | { | |
2098 | struct qlcnic_adapter *adapter = container_of(work, | |
2099 | struct qlcnic_adapter, fw_work.work); | |
2100 | struct net_device *netdev = adapter->netdev; | |
2101 | int err; | |
2102 | ||
2103 | if (netif_running(netdev)) { | |
2104 | err = qlcnic_attach(adapter); | |
2105 | if (err) | |
2106 | goto done; | |
2107 | ||
2108 | err = qlcnic_up(adapter, netdev); | |
2109 | if (err) { | |
2110 | qlcnic_detach(adapter); | |
2111 | goto done; | |
2112 | } | |
2113 | ||
2114 | qlcnic_config_indev_addr(netdev, NETDEV_UP); | |
2115 | } | |
2116 | ||
2117 | netif_device_attach(netdev); | |
2118 | ||
2119 | done: | |
2120 | adapter->fw_fail_cnt = 0; | |
2121 | clear_bit(__QLCNIC_RESETTING, &adapter->state); | |
2122 | qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); | |
2123 | } | |
2124 | ||
2125 | static int | |
2126 | qlcnic_check_health(struct qlcnic_adapter *adapter) | |
2127 | { | |
2128 | u32 state = 0, heartbit; | |
2129 | struct net_device *netdev = adapter->netdev; | |
2130 | ||
2131 | if (qlcnic_check_temp(adapter)) | |
2132 | goto detach; | |
2133 | ||
2134 | if (adapter->need_fw_reset) { | |
2135 | qlcnic_dev_request_reset(adapter); | |
2136 | goto detach; | |
2137 | } | |
2138 | ||
2139 | state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); | |
2140 | if (state == QLCNIC_DEV_NEED_RESET || state == QLCNIC_DEV_NEED_QUISCENT) | |
2141 | adapter->need_fw_reset = 1; | |
2142 | ||
2143 | heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER); | |
2144 | if (heartbit != adapter->heartbit) { | |
2145 | adapter->heartbit = heartbit; | |
2146 | adapter->fw_fail_cnt = 0; | |
2147 | if (adapter->need_fw_reset) | |
2148 | goto detach; | |
2149 | return 0; | |
2150 | } | |
2151 | ||
2152 | if (++adapter->fw_fail_cnt < FW_FAIL_THRESH) | |
2153 | return 0; | |
2154 | ||
2155 | qlcnic_dev_request_reset(adapter); | |
2156 | ||
2157 | clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state); | |
2158 | ||
2159 | dev_info(&netdev->dev, "firmware hang detected\n"); | |
2160 | ||
2161 | detach: | |
2162 | adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state : | |
2163 | QLCNIC_DEV_NEED_RESET; | |
2164 | ||
2165 | if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) && | |
2166 | !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) | |
2167 | qlcnic_schedule_work(adapter, qlcnic_detach_work, 0); | |
2168 | ||
2169 | return 1; | |
2170 | } | |
2171 | ||
2172 | static void | |
2173 | qlcnic_fw_poll_work(struct work_struct *work) | |
2174 | { | |
2175 | struct qlcnic_adapter *adapter = container_of(work, | |
2176 | struct qlcnic_adapter, fw_work.work); | |
2177 | ||
2178 | if (test_bit(__QLCNIC_RESETTING, &adapter->state)) | |
2179 | goto reschedule; | |
2180 | ||
2181 | ||
2182 | if (qlcnic_check_health(adapter)) | |
2183 | return; | |
2184 | ||
2185 | reschedule: | |
2186 | qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); | |
2187 | } | |
2188 | ||
2189 | static ssize_t | |
2190 | qlcnic_store_bridged_mode(struct device *dev, | |
2191 | struct device_attribute *attr, const char *buf, size_t len) | |
2192 | { | |
2193 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2194 | unsigned long new; | |
2195 | int ret = -EINVAL; | |
2196 | ||
2197 | if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)) | |
2198 | goto err_out; | |
2199 | ||
2200 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
2201 | goto err_out; | |
2202 | ||
2203 | if (strict_strtoul(buf, 2, &new)) | |
2204 | goto err_out; | |
2205 | ||
2206 | if (!qlcnic_config_bridged_mode(adapter, !!new)) | |
2207 | ret = len; | |
2208 | ||
2209 | err_out: | |
2210 | return ret; | |
2211 | } | |
2212 | ||
2213 | static ssize_t | |
2214 | qlcnic_show_bridged_mode(struct device *dev, | |
2215 | struct device_attribute *attr, char *buf) | |
2216 | { | |
2217 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2218 | int bridged_mode = 0; | |
2219 | ||
2220 | if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG) | |
2221 | bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED); | |
2222 | ||
2223 | return sprintf(buf, "%d\n", bridged_mode); | |
2224 | } | |
2225 | ||
2226 | static struct device_attribute dev_attr_bridged_mode = { | |
2227 | .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)}, | |
2228 | .show = qlcnic_show_bridged_mode, | |
2229 | .store = qlcnic_store_bridged_mode, | |
2230 | }; | |
2231 | ||
2232 | static ssize_t | |
2233 | qlcnic_store_diag_mode(struct device *dev, | |
2234 | struct device_attribute *attr, const char *buf, size_t len) | |
2235 | { | |
2236 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2237 | unsigned long new; | |
2238 | ||
2239 | if (strict_strtoul(buf, 2, &new)) | |
2240 | return -EINVAL; | |
2241 | ||
2242 | if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED)) | |
2243 | adapter->flags ^= QLCNIC_DIAG_ENABLED; | |
2244 | ||
2245 | return len; | |
2246 | } | |
2247 | ||
2248 | static ssize_t | |
2249 | qlcnic_show_diag_mode(struct device *dev, | |
2250 | struct device_attribute *attr, char *buf) | |
2251 | { | |
2252 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2253 | ||
2254 | return sprintf(buf, "%d\n", | |
2255 | !!(adapter->flags & QLCNIC_DIAG_ENABLED)); | |
2256 | } | |
2257 | ||
2258 | static struct device_attribute dev_attr_diag_mode = { | |
2259 | .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)}, | |
2260 | .show = qlcnic_show_diag_mode, | |
2261 | .store = qlcnic_store_diag_mode, | |
2262 | }; | |
2263 | ||
2264 | static int | |
2265 | qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter, | |
2266 | loff_t offset, size_t size) | |
2267 | { | |
2268 | if (!(adapter->flags & QLCNIC_DIAG_ENABLED)) | |
2269 | return -EIO; | |
2270 | ||
2271 | if ((size != 4) || (offset & 0x3)) | |
2272 | return -EINVAL; | |
2273 | ||
2274 | if (offset < QLCNIC_PCI_CRBSPACE) | |
2275 | return -EINVAL; | |
2276 | ||
2277 | return 0; | |
2278 | } | |
2279 | ||
2280 | static ssize_t | |
2281 | qlcnic_sysfs_read_crb(struct kobject *kobj, struct bin_attribute *attr, | |
2282 | char *buf, loff_t offset, size_t size) | |
2283 | { | |
2284 | struct device *dev = container_of(kobj, struct device, kobj); | |
2285 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2286 | u32 data; | |
2287 | int ret; | |
2288 | ||
2289 | ret = qlcnic_sysfs_validate_crb(adapter, offset, size); | |
2290 | if (ret != 0) | |
2291 | return ret; | |
2292 | ||
2293 | data = QLCRD32(adapter, offset); | |
2294 | memcpy(buf, &data, size); | |
2295 | return size; | |
2296 | } | |
2297 | ||
2298 | static ssize_t | |
2299 | qlcnic_sysfs_write_crb(struct kobject *kobj, struct bin_attribute *attr, | |
2300 | char *buf, loff_t offset, size_t size) | |
2301 | { | |
2302 | struct device *dev = container_of(kobj, struct device, kobj); | |
2303 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2304 | u32 data; | |
2305 | int ret; | |
2306 | ||
2307 | ret = qlcnic_sysfs_validate_crb(adapter, offset, size); | |
2308 | if (ret != 0) | |
2309 | return ret; | |
2310 | ||
2311 | memcpy(&data, buf, size); | |
2312 | QLCWR32(adapter, offset, data); | |
2313 | return size; | |
2314 | } | |
2315 | ||
2316 | static int | |
2317 | qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter, | |
2318 | loff_t offset, size_t size) | |
2319 | { | |
2320 | if (!(adapter->flags & QLCNIC_DIAG_ENABLED)) | |
2321 | return -EIO; | |
2322 | ||
2323 | if ((size != 8) || (offset & 0x7)) | |
2324 | return -EIO; | |
2325 | ||
2326 | return 0; | |
2327 | } | |
2328 | ||
2329 | static ssize_t | |
2330 | qlcnic_sysfs_read_mem(struct kobject *kobj, struct bin_attribute *attr, | |
2331 | char *buf, loff_t offset, size_t size) | |
2332 | { | |
2333 | struct device *dev = container_of(kobj, struct device, kobj); | |
2334 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2335 | u64 data; | |
2336 | int ret; | |
2337 | ||
2338 | ret = qlcnic_sysfs_validate_mem(adapter, offset, size); | |
2339 | if (ret != 0) | |
2340 | return ret; | |
2341 | ||
2342 | if (qlcnic_pci_mem_read_2M(adapter, offset, &data)) | |
2343 | return -EIO; | |
2344 | ||
2345 | memcpy(buf, &data, size); | |
2346 | ||
2347 | return size; | |
2348 | } | |
2349 | ||
2350 | static ssize_t | |
2351 | qlcnic_sysfs_write_mem(struct kobject *kobj, struct bin_attribute *attr, | |
2352 | char *buf, loff_t offset, size_t size) | |
2353 | { | |
2354 | struct device *dev = container_of(kobj, struct device, kobj); | |
2355 | struct qlcnic_adapter *adapter = dev_get_drvdata(dev); | |
2356 | u64 data; | |
2357 | int ret; | |
2358 | ||
2359 | ret = qlcnic_sysfs_validate_mem(adapter, offset, size); | |
2360 | if (ret != 0) | |
2361 | return ret; | |
2362 | ||
2363 | memcpy(&data, buf, size); | |
2364 | ||
2365 | if (qlcnic_pci_mem_write_2M(adapter, offset, data)) | |
2366 | return -EIO; | |
2367 | ||
2368 | return size; | |
2369 | } | |
2370 | ||
2371 | ||
2372 | static struct bin_attribute bin_attr_crb = { | |
2373 | .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)}, | |
2374 | .size = 0, | |
2375 | .read = qlcnic_sysfs_read_crb, | |
2376 | .write = qlcnic_sysfs_write_crb, | |
2377 | }; | |
2378 | ||
2379 | static struct bin_attribute bin_attr_mem = { | |
2380 | .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)}, | |
2381 | .size = 0, | |
2382 | .read = qlcnic_sysfs_read_mem, | |
2383 | .write = qlcnic_sysfs_write_mem, | |
2384 | }; | |
2385 | ||
2386 | static void | |
2387 | qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter) | |
2388 | { | |
2389 | struct device *dev = &adapter->pdev->dev; | |
2390 | ||
2391 | if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG) | |
2392 | if (device_create_file(dev, &dev_attr_bridged_mode)) | |
2393 | dev_warn(dev, | |
2394 | "failed to create bridged_mode sysfs entry\n"); | |
2395 | } | |
2396 | ||
2397 | static void | |
2398 | qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter) | |
2399 | { | |
2400 | struct device *dev = &adapter->pdev->dev; | |
2401 | ||
2402 | if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG) | |
2403 | device_remove_file(dev, &dev_attr_bridged_mode); | |
2404 | } | |
2405 | ||
2406 | static void | |
2407 | qlcnic_create_diag_entries(struct qlcnic_adapter *adapter) | |
2408 | { | |
2409 | struct device *dev = &adapter->pdev->dev; | |
2410 | ||
2411 | if (device_create_file(dev, &dev_attr_diag_mode)) | |
2412 | dev_info(dev, "failed to create diag_mode sysfs entry\n"); | |
2413 | if (device_create_bin_file(dev, &bin_attr_crb)) | |
2414 | dev_info(dev, "failed to create crb sysfs entry\n"); | |
2415 | if (device_create_bin_file(dev, &bin_attr_mem)) | |
2416 | dev_info(dev, "failed to create mem sysfs entry\n"); | |
2417 | } | |
2418 | ||
2419 | ||
2420 | static void | |
2421 | qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter) | |
2422 | { | |
2423 | struct device *dev = &adapter->pdev->dev; | |
2424 | ||
2425 | device_remove_file(dev, &dev_attr_diag_mode); | |
2426 | device_remove_bin_file(dev, &bin_attr_crb); | |
2427 | device_remove_bin_file(dev, &bin_attr_mem); | |
2428 | } | |
2429 | ||
2430 | #ifdef CONFIG_INET | |
2431 | ||
2432 | #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops) | |
2433 | ||
2434 | static int | |
2435 | qlcnic_destip_supported(struct qlcnic_adapter *adapter) | |
2436 | { | |
2437 | if (adapter->ahw.cut_through) | |
2438 | return 0; | |
2439 | ||
2440 | return 1; | |
2441 | } | |
2442 | ||
2443 | static void | |
2444 | qlcnic_config_indev_addr(struct net_device *dev, unsigned long event) | |
2445 | { | |
2446 | struct in_device *indev; | |
2447 | struct qlcnic_adapter *adapter = netdev_priv(dev); | |
2448 | ||
2449 | if (!qlcnic_destip_supported(adapter)) | |
2450 | return; | |
2451 | ||
2452 | indev = in_dev_get(dev); | |
2453 | if (!indev) | |
2454 | return; | |
2455 | ||
2456 | for_ifa(indev) { | |
2457 | switch (event) { | |
2458 | case NETDEV_UP: | |
2459 | qlcnic_config_ipaddr(adapter, | |
2460 | ifa->ifa_address, QLCNIC_IP_UP); | |
2461 | break; | |
2462 | case NETDEV_DOWN: | |
2463 | qlcnic_config_ipaddr(adapter, | |
2464 | ifa->ifa_address, QLCNIC_IP_DOWN); | |
2465 | break; | |
2466 | default: | |
2467 | break; | |
2468 | } | |
2469 | } endfor_ifa(indev); | |
2470 | ||
2471 | in_dev_put(indev); | |
2472 | return; | |
2473 | } | |
2474 | ||
2475 | static int qlcnic_netdev_event(struct notifier_block *this, | |
2476 | unsigned long event, void *ptr) | |
2477 | { | |
2478 | struct qlcnic_adapter *adapter; | |
2479 | struct net_device *dev = (struct net_device *)ptr; | |
2480 | ||
2481 | recheck: | |
2482 | if (dev == NULL) | |
2483 | goto done; | |
2484 | ||
2485 | if (dev->priv_flags & IFF_802_1Q_VLAN) { | |
2486 | dev = vlan_dev_real_dev(dev); | |
2487 | goto recheck; | |
2488 | } | |
2489 | ||
2490 | if (!is_qlcnic_netdev(dev)) | |
2491 | goto done; | |
2492 | ||
2493 | adapter = netdev_priv(dev); | |
2494 | ||
2495 | if (!adapter) | |
2496 | goto done; | |
2497 | ||
2498 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
2499 | goto done; | |
2500 | ||
2501 | qlcnic_config_indev_addr(dev, event); | |
2502 | done: | |
2503 | return NOTIFY_DONE; | |
2504 | } | |
2505 | ||
2506 | static int | |
2507 | qlcnic_inetaddr_event(struct notifier_block *this, | |
2508 | unsigned long event, void *ptr) | |
2509 | { | |
2510 | struct qlcnic_adapter *adapter; | |
2511 | struct net_device *dev; | |
2512 | ||
2513 | struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; | |
2514 | ||
2515 | dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; | |
2516 | ||
2517 | recheck: | |
2518 | if (dev == NULL || !netif_running(dev)) | |
2519 | goto done; | |
2520 | ||
2521 | if (dev->priv_flags & IFF_802_1Q_VLAN) { | |
2522 | dev = vlan_dev_real_dev(dev); | |
2523 | goto recheck; | |
2524 | } | |
2525 | ||
2526 | if (!is_qlcnic_netdev(dev)) | |
2527 | goto done; | |
2528 | ||
2529 | adapter = netdev_priv(dev); | |
2530 | ||
2531 | if (!adapter || !qlcnic_destip_supported(adapter)) | |
2532 | goto done; | |
2533 | ||
2534 | if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) | |
2535 | goto done; | |
2536 | ||
2537 | switch (event) { | |
2538 | case NETDEV_UP: | |
2539 | qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP); | |
2540 | break; | |
2541 | case NETDEV_DOWN: | |
2542 | qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN); | |
2543 | break; | |
2544 | default: | |
2545 | break; | |
2546 | } | |
2547 | ||
2548 | done: | |
2549 | return NOTIFY_DONE; | |
2550 | } | |
2551 | ||
2552 | static struct notifier_block qlcnic_netdev_cb = { | |
2553 | .notifier_call = qlcnic_netdev_event, | |
2554 | }; | |
2555 | ||
2556 | static struct notifier_block qlcnic_inetaddr_cb = { | |
2557 | .notifier_call = qlcnic_inetaddr_event, | |
2558 | }; | |
2559 | #else | |
2560 | static void | |
2561 | qlcnic_config_indev_addr(struct net_device *dev, unsigned long event) | |
2562 | { } | |
2563 | #endif | |
2564 | ||
2565 | static struct pci_driver qlcnic_driver = { | |
2566 | .name = qlcnic_driver_name, | |
2567 | .id_table = qlcnic_pci_tbl, | |
2568 | .probe = qlcnic_probe, | |
2569 | .remove = __devexit_p(qlcnic_remove), | |
2570 | #ifdef CONFIG_PM | |
2571 | .suspend = qlcnic_suspend, | |
2572 | .resume = qlcnic_resume, | |
2573 | #endif | |
2574 | .shutdown = qlcnic_shutdown | |
2575 | }; | |
2576 | ||
2577 | static int __init qlcnic_init_module(void) | |
2578 | { | |
2579 | ||
2580 | printk(KERN_INFO "%s\n", qlcnic_driver_string); | |
2581 | ||
2582 | #ifdef CONFIG_INET | |
2583 | register_netdevice_notifier(&qlcnic_netdev_cb); | |
2584 | register_inetaddr_notifier(&qlcnic_inetaddr_cb); | |
2585 | #endif | |
2586 | ||
2587 | ||
2588 | return pci_register_driver(&qlcnic_driver); | |
2589 | } | |
2590 | ||
2591 | module_init(qlcnic_init_module); | |
2592 | ||
2593 | static void __exit qlcnic_exit_module(void) | |
2594 | { | |
2595 | ||
2596 | pci_unregister_driver(&qlcnic_driver); | |
2597 | ||
2598 | #ifdef CONFIG_INET | |
2599 | unregister_inetaddr_notifier(&qlcnic_inetaddr_cb); | |
2600 | unregister_netdevice_notifier(&qlcnic_netdev_cb); | |
2601 | #endif | |
2602 | } | |
2603 | ||
2604 | module_exit(qlcnic_exit_module); |