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qlcnic: Stop pause ctrl frames on fw hang.
[deliverable/linux.git] / drivers / net / ethernet / qlogic / qlcnic / qlcnic_main.c
1 /*
2 * QLogic qlcnic NIC Driver
3 * Copyright (c) 2009-2010 QLogic Corporation
4 *
5 * See LICENSE.qlcnic for copyright and licensing details.
6 */
7
8 #include <linux/slab.h>
9 #include <linux/vmalloc.h>
10 #include <linux/interrupt.h>
11
12 #include "qlcnic.h"
13
14 #include <linux/swab.h>
15 #include <linux/dma-mapping.h>
16 #include <net/ip.h>
17 #include <linux/ipv6.h>
18 #include <linux/inetdevice.h>
19 #include <linux/sysfs.h>
20 #include <linux/aer.h>
21 #include <linux/log2.h>
22
23 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
24 MODULE_LICENSE("GPL");
25 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
26 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
27
28 char qlcnic_driver_name[] = "qlcnic";
29 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
30 "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
31
32 static struct workqueue_struct *qlcnic_wq;
33 static int qlcnic_mac_learn;
34 module_param(qlcnic_mac_learn, int, 0444);
35 MODULE_PARM_DESC(qlcnic_mac_learn, "Mac Filter (0=disabled, 1=enabled)");
36
37 static int use_msi = 1;
38 module_param(use_msi, int, 0444);
39 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
40
41 static int use_msi_x = 1;
42 module_param(use_msi_x, int, 0444);
43 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
44
45 static int auto_fw_reset = 1;
46 module_param(auto_fw_reset, int, 0644);
47 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
48
49 static int load_fw_file;
50 module_param(load_fw_file, int, 0444);
51 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file");
52
53 static int qlcnic_config_npars;
54 module_param(qlcnic_config_npars, int, 0444);
55 MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
56
57 static int __devinit qlcnic_probe(struct pci_dev *pdev,
58 const struct pci_device_id *ent);
59 static void __devexit qlcnic_remove(struct pci_dev *pdev);
60 static int qlcnic_open(struct net_device *netdev);
61 static int qlcnic_close(struct net_device *netdev);
62 static void qlcnic_tx_timeout(struct net_device *netdev);
63 static void qlcnic_attach_work(struct work_struct *work);
64 static void qlcnic_fwinit_work(struct work_struct *work);
65 static void qlcnic_fw_poll_work(struct work_struct *work);
66 static void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
67 work_func_t func, int delay);
68 static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter);
69 static int qlcnic_poll(struct napi_struct *napi, int budget);
70 static int qlcnic_rx_poll(struct napi_struct *napi, int budget);
71 #ifdef CONFIG_NET_POLL_CONTROLLER
72 static void qlcnic_poll_controller(struct net_device *netdev);
73 #endif
74
75 static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter);
76 static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter);
77 static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter);
78 static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter);
79
80 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
81 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
82 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
83
84 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
85 static irqreturn_t qlcnic_intr(int irq, void *data);
86 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
87 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
88
89 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
90 static void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long);
91 static int qlcnic_start_firmware(struct qlcnic_adapter *);
92
93 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
94 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
95 static int qlcnicvf_config_led(struct qlcnic_adapter *, u32, u32);
96 static int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *, u32);
97 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
98 static void qlcnic_set_netdev_features(struct qlcnic_adapter *,
99 struct qlcnic_esw_func_cfg *);
100 static int qlcnic_vlan_rx_add(struct net_device *, u16);
101 static int qlcnic_vlan_rx_del(struct net_device *, u16);
102
103 /* PCI Device ID Table */
104 #define ENTRY(device) \
105 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
106 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
107
108 #define PCI_DEVICE_ID_QLOGIC_QLE824X 0x8020
109
110 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
111 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
112 {0,}
113 };
114
115 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
116
117
118 inline void
119 qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
120 struct qlcnic_host_tx_ring *tx_ring)
121 {
122 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
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
182 if (ring == adapter->max_sds_rings - 1)
183 netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll,
184 QLCNIC_NETDEV_WEIGHT/adapter->max_sds_rings);
185 else
186 netif_napi_add(netdev, &sds_ring->napi,
187 qlcnic_rx_poll, QLCNIC_NETDEV_WEIGHT*2);
188 }
189
190 return 0;
191 }
192
193 static void
194 qlcnic_napi_del(struct qlcnic_adapter *adapter)
195 {
196 int ring;
197 struct qlcnic_host_sds_ring *sds_ring;
198 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
199
200 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
201 sds_ring = &recv_ctx->sds_rings[ring];
202 netif_napi_del(&sds_ring->napi);
203 }
204
205 qlcnic_free_sds_rings(adapter->recv_ctx);
206 }
207
208 static void
209 qlcnic_napi_enable(struct qlcnic_adapter *adapter)
210 {
211 int ring;
212 struct qlcnic_host_sds_ring *sds_ring;
213 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
214
215 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
216 return;
217
218 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
219 sds_ring = &recv_ctx->sds_rings[ring];
220 napi_enable(&sds_ring->napi);
221 qlcnic_enable_int(sds_ring);
222 }
223 }
224
225 static void
226 qlcnic_napi_disable(struct qlcnic_adapter *adapter)
227 {
228 int ring;
229 struct qlcnic_host_sds_ring *sds_ring;
230 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
231
232 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
233 return;
234
235 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
236 sds_ring = &recv_ctx->sds_rings[ring];
237 qlcnic_disable_int(sds_ring);
238 napi_synchronize(&sds_ring->napi);
239 napi_disable(&sds_ring->napi);
240 }
241 }
242
243 static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
244 {
245 memset(&adapter->stats, 0, sizeof(adapter->stats));
246 }
247
248 static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
249 {
250 u32 control;
251 int pos;
252
253 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
254 if (pos) {
255 pci_read_config_dword(pdev, pos, &control);
256 if (enable)
257 control |= PCI_MSIX_FLAGS_ENABLE;
258 else
259 control = 0;
260 pci_write_config_dword(pdev, pos, control);
261 }
262 }
263
264 static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
265 {
266 int i;
267
268 for (i = 0; i < count; i++)
269 adapter->msix_entries[i].entry = i;
270 }
271
272 static int
273 qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
274 {
275 u8 mac_addr[ETH_ALEN];
276 struct net_device *netdev = adapter->netdev;
277 struct pci_dev *pdev = adapter->pdev;
278
279 if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
280 return -EIO;
281
282 memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
283 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
284 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
285
286 /* set station address */
287
288 if (!is_valid_ether_addr(netdev->perm_addr))
289 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
290 netdev->dev_addr);
291
292 return 0;
293 }
294
295 static int qlcnic_set_mac(struct net_device *netdev, void *p)
296 {
297 struct qlcnic_adapter *adapter = netdev_priv(netdev);
298 struct sockaddr *addr = p;
299
300 if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
301 return -EOPNOTSUPP;
302
303 if (!is_valid_ether_addr(addr->sa_data))
304 return -EINVAL;
305
306 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
307 netif_device_detach(netdev);
308 qlcnic_napi_disable(adapter);
309 }
310
311 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
312 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
313 qlcnic_set_multi(adapter->netdev);
314
315 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
316 netif_device_attach(netdev);
317 qlcnic_napi_enable(adapter);
318 }
319 return 0;
320 }
321
322 static const struct net_device_ops qlcnic_netdev_ops = {
323 .ndo_open = qlcnic_open,
324 .ndo_stop = qlcnic_close,
325 .ndo_start_xmit = qlcnic_xmit_frame,
326 .ndo_get_stats = qlcnic_get_stats,
327 .ndo_validate_addr = eth_validate_addr,
328 .ndo_set_rx_mode = qlcnic_set_multi,
329 .ndo_set_mac_address = qlcnic_set_mac,
330 .ndo_change_mtu = qlcnic_change_mtu,
331 .ndo_fix_features = qlcnic_fix_features,
332 .ndo_set_features = qlcnic_set_features,
333 .ndo_tx_timeout = qlcnic_tx_timeout,
334 .ndo_vlan_rx_add_vid = qlcnic_vlan_rx_add,
335 .ndo_vlan_rx_kill_vid = qlcnic_vlan_rx_del,
336 #ifdef CONFIG_NET_POLL_CONTROLLER
337 .ndo_poll_controller = qlcnic_poll_controller,
338 #endif
339 };
340
341 static struct qlcnic_nic_template qlcnic_ops = {
342 .config_bridged_mode = qlcnic_config_bridged_mode,
343 .config_led = qlcnic_config_led,
344 .start_firmware = qlcnic_start_firmware
345 };
346
347 static struct qlcnic_nic_template qlcnic_vf_ops = {
348 .config_bridged_mode = qlcnicvf_config_bridged_mode,
349 .config_led = qlcnicvf_config_led,
350 .start_firmware = qlcnicvf_start_firmware
351 };
352
353 static int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
354 {
355 struct pci_dev *pdev = adapter->pdev;
356 int err = -1;
357
358 adapter->max_sds_rings = 1;
359 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
360 qlcnic_set_msix_bit(pdev, 0);
361
362 if (adapter->msix_supported) {
363 enable_msix:
364 qlcnic_init_msix_entries(adapter, num_msix);
365 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
366 if (err == 0) {
367 adapter->flags |= QLCNIC_MSIX_ENABLED;
368 qlcnic_set_msix_bit(pdev, 1);
369
370 adapter->max_sds_rings = num_msix;
371
372 dev_info(&pdev->dev, "using msi-x interrupts\n");
373 return err;
374 }
375 if (err > 0) {
376 num_msix = rounddown_pow_of_two(err);
377 if (num_msix)
378 goto enable_msix;
379 }
380 }
381 return err;
382 }
383
384
385 static void qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
386 {
387 const struct qlcnic_legacy_intr_set *legacy_intrp;
388 struct pci_dev *pdev = adapter->pdev;
389
390 if (use_msi && !pci_enable_msi(pdev)) {
391 adapter->flags |= QLCNIC_MSI_ENABLED;
392 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
393 msi_tgt_status[adapter->ahw->pci_func]);
394 dev_info(&pdev->dev, "using msi interrupts\n");
395 adapter->msix_entries[0].vector = pdev->irq;
396 return;
397 }
398
399 legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
400
401 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
402 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
403 legacy_intrp->tgt_status_reg);
404 adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
405 legacy_intrp->tgt_mask_reg);
406 adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
407
408 adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
409 ISR_INT_STATE_REG);
410 dev_info(&pdev->dev, "using legacy interrupts\n");
411 adapter->msix_entries[0].vector = pdev->irq;
412 }
413
414 static void
415 qlcnic_setup_intr(struct qlcnic_adapter *adapter)
416 {
417 int num_msix;
418
419 if (adapter->msix_supported) {
420 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
421 QLCNIC_DEF_NUM_STS_DESC_RINGS));
422 } else
423 num_msix = 1;
424
425 if (!qlcnic_enable_msix(adapter, num_msix))
426 return;
427
428 qlcnic_enable_msi_legacy(adapter);
429 }
430
431 static void
432 qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
433 {
434 if (adapter->flags & QLCNIC_MSIX_ENABLED)
435 pci_disable_msix(adapter->pdev);
436 if (adapter->flags & QLCNIC_MSI_ENABLED)
437 pci_disable_msi(adapter->pdev);
438 }
439
440 static void
441 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
442 {
443 if (adapter->ahw->pci_base0 != NULL)
444 iounmap(adapter->ahw->pci_base0);
445 }
446
447 static int
448 qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
449 {
450 struct qlcnic_pci_info *pci_info;
451 int i, ret = 0;
452 u8 pfn;
453
454 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
455 if (!pci_info)
456 return -ENOMEM;
457
458 adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
459 QLCNIC_MAX_PCI_FUNC, GFP_KERNEL);
460 if (!adapter->npars) {
461 ret = -ENOMEM;
462 goto err_pci_info;
463 }
464
465 adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
466 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
467 if (!adapter->eswitch) {
468 ret = -ENOMEM;
469 goto err_npars;
470 }
471
472 ret = qlcnic_get_pci_info(adapter, pci_info);
473 if (ret)
474 goto err_eswitch;
475
476 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
477 pfn = pci_info[i].id;
478 if (pfn > QLCNIC_MAX_PCI_FUNC) {
479 ret = QL_STATUS_INVALID_PARAM;
480 goto err_eswitch;
481 }
482 adapter->npars[pfn].active = (u8)pci_info[i].active;
483 adapter->npars[pfn].type = (u8)pci_info[i].type;
484 adapter->npars[pfn].phy_port = (u8)pci_info[i].default_port;
485 adapter->npars[pfn].min_bw = pci_info[i].tx_min_bw;
486 adapter->npars[pfn].max_bw = pci_info[i].tx_max_bw;
487 }
488
489 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
490 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
491
492 kfree(pci_info);
493 return 0;
494
495 err_eswitch:
496 kfree(adapter->eswitch);
497 adapter->eswitch = NULL;
498 err_npars:
499 kfree(adapter->npars);
500 adapter->npars = NULL;
501 err_pci_info:
502 kfree(pci_info);
503
504 return ret;
505 }
506
507 static int
508 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
509 {
510 u8 id;
511 u32 ref_count;
512 int i, ret = 1;
513 u32 data = QLCNIC_MGMT_FUNC;
514 void __iomem *priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE;
515
516 /* If other drivers are not in use set their privilege level */
517 ref_count = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
518 ret = qlcnic_api_lock(adapter);
519 if (ret)
520 goto err_lock;
521
522 if (qlcnic_config_npars) {
523 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
524 id = i;
525 if (adapter->npars[i].type != QLCNIC_TYPE_NIC ||
526 id == adapter->ahw->pci_func)
527 continue;
528 data |= (qlcnic_config_npars &
529 QLC_DEV_SET_DRV(0xf, id));
530 }
531 } else {
532 data = readl(priv_op);
533 data = (data & ~QLC_DEV_SET_DRV(0xf, adapter->ahw->pci_func)) |
534 (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
535 adapter->ahw->pci_func));
536 }
537 writel(data, priv_op);
538 qlcnic_api_unlock(adapter);
539 err_lock:
540 return ret;
541 }
542
543 static void
544 qlcnic_check_vf(struct qlcnic_adapter *adapter)
545 {
546 void __iomem *msix_base_addr;
547 void __iomem *priv_op;
548 u32 func;
549 u32 msix_base;
550 u32 op_mode, priv_level;
551
552 /* Determine FW API version */
553 adapter->fw_hal_version = readl(adapter->ahw->pci_base0 +
554 QLCNIC_FW_API);
555
556 /* Find PCI function number */
557 pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
558 msix_base_addr = adapter->ahw->pci_base0 + QLCNIC_MSIX_BASE;
559 msix_base = readl(msix_base_addr);
560 func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE;
561 adapter->ahw->pci_func = func;
562
563 /* Determine function privilege level */
564 priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE;
565 op_mode = readl(priv_op);
566 if (op_mode == QLC_DEV_DRV_DEFAULT)
567 priv_level = QLCNIC_MGMT_FUNC;
568 else
569 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
570
571 if (priv_level == QLCNIC_NON_PRIV_FUNC) {
572 adapter->op_mode = QLCNIC_NON_PRIV_FUNC;
573 dev_info(&adapter->pdev->dev,
574 "HAL Version: %d Non Privileged function\n",
575 adapter->fw_hal_version);
576 adapter->nic_ops = &qlcnic_vf_ops;
577 } else
578 adapter->nic_ops = &qlcnic_ops;
579 }
580
581 static int
582 qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
583 {
584 void __iomem *mem_ptr0 = NULL;
585 resource_size_t mem_base;
586 unsigned long mem_len, pci_len0 = 0;
587
588 struct pci_dev *pdev = adapter->pdev;
589
590 /* remap phys address */
591 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
592 mem_len = pci_resource_len(pdev, 0);
593
594 if (mem_len == QLCNIC_PCI_2MB_SIZE) {
595
596 mem_ptr0 = pci_ioremap_bar(pdev, 0);
597 if (mem_ptr0 == NULL) {
598 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
599 return -EIO;
600 }
601 pci_len0 = mem_len;
602 } else {
603 return -EIO;
604 }
605
606 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
607
608 adapter->ahw->pci_base0 = mem_ptr0;
609 adapter->ahw->pci_len0 = pci_len0;
610
611 qlcnic_check_vf(adapter);
612
613 adapter->ahw->ocm_win_crb = qlcnic_get_ioaddr(adapter,
614 QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(
615 adapter->ahw->pci_func)));
616
617 return 0;
618 }
619
620 static void get_brd_name(struct qlcnic_adapter *adapter, char *name)
621 {
622 struct pci_dev *pdev = adapter->pdev;
623 int i, found = 0;
624
625 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
626 if (qlcnic_boards[i].vendor == pdev->vendor &&
627 qlcnic_boards[i].device == pdev->device &&
628 qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
629 qlcnic_boards[i].sub_device == pdev->subsystem_device) {
630 sprintf(name, "%pM: %s" ,
631 adapter->mac_addr,
632 qlcnic_boards[i].short_name);
633 found = 1;
634 break;
635 }
636
637 }
638
639 if (!found)
640 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
641 }
642
643 static void
644 qlcnic_check_options(struct qlcnic_adapter *adapter)
645 {
646 u32 fw_major, fw_minor, fw_build, prev_fw_version;
647 struct pci_dev *pdev = adapter->pdev;
648 struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
649
650 prev_fw_version = adapter->fw_version;
651
652 fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
653 fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
654 fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
655
656 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
657
658 if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC) {
659 if (fw_dump->tmpl_hdr == NULL ||
660 adapter->fw_version > prev_fw_version) {
661 if (fw_dump->tmpl_hdr)
662 vfree(fw_dump->tmpl_hdr);
663 if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
664 dev_info(&pdev->dev,
665 "Supports FW dump capability\n");
666 }
667 }
668
669 dev_info(&pdev->dev, "firmware v%d.%d.%d\n",
670 fw_major, fw_minor, fw_build);
671 if (adapter->ahw->port_type == QLCNIC_XGBE) {
672 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
673 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
674 adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
675 } else {
676 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
677 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
678 }
679
680 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
681 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
682
683 } else if (adapter->ahw->port_type == QLCNIC_GBE) {
684 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
685 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
686 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
687 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
688 }
689
690 adapter->msix_supported = !!use_msi_x;
691
692 adapter->num_txd = MAX_CMD_DESCRIPTORS;
693
694 adapter->max_rds_rings = MAX_RDS_RINGS;
695 }
696
697 static int
698 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
699 {
700 int err;
701 struct qlcnic_info nic_info;
702
703 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
704 if (err)
705 return err;
706
707 adapter->physical_port = (u8)nic_info.phys_port;
708 adapter->switch_mode = nic_info.switch_mode;
709 adapter->max_tx_ques = nic_info.max_tx_ques;
710 adapter->max_rx_ques = nic_info.max_rx_ques;
711 adapter->capabilities = nic_info.capabilities;
712 adapter->max_mac_filters = nic_info.max_mac_filters;
713 adapter->max_mtu = nic_info.max_mtu;
714
715 if (adapter->capabilities & BIT_6)
716 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
717 else
718 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
719
720 return err;
721 }
722
723 static void
724 qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
725 struct qlcnic_esw_func_cfg *esw_cfg)
726 {
727 if (esw_cfg->discard_tagged)
728 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
729 else
730 adapter->flags |= QLCNIC_TAGGING_ENABLED;
731
732 if (esw_cfg->vlan_id)
733 adapter->pvid = esw_cfg->vlan_id;
734 else
735 adapter->pvid = 0;
736 }
737
738 static int
739 qlcnic_vlan_rx_add(struct net_device *netdev, u16 vid)
740 {
741 struct qlcnic_adapter *adapter = netdev_priv(netdev);
742 set_bit(vid, adapter->vlans);
743 return 0;
744 }
745
746 static int
747 qlcnic_vlan_rx_del(struct net_device *netdev, u16 vid)
748 {
749 struct qlcnic_adapter *adapter = netdev_priv(netdev);
750
751 qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
752 clear_bit(vid, adapter->vlans);
753 return 0;
754 }
755
756 static void
757 qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
758 struct qlcnic_esw_func_cfg *esw_cfg)
759 {
760 adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
761 QLCNIC_PROMISC_DISABLED);
762
763 if (esw_cfg->mac_anti_spoof)
764 adapter->flags |= QLCNIC_MACSPOOF;
765
766 if (!esw_cfg->mac_override)
767 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
768
769 if (!esw_cfg->promisc_mode)
770 adapter->flags |= QLCNIC_PROMISC_DISABLED;
771
772 qlcnic_set_netdev_features(adapter, esw_cfg);
773 }
774
775 static int
776 qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
777 {
778 struct qlcnic_esw_func_cfg esw_cfg;
779
780 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
781 return 0;
782
783 esw_cfg.pci_func = adapter->ahw->pci_func;
784 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
785 return -EIO;
786 qlcnic_set_vlan_config(adapter, &esw_cfg);
787 qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
788
789 return 0;
790 }
791
792 static void
793 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
794 struct qlcnic_esw_func_cfg *esw_cfg)
795 {
796 struct net_device *netdev = adapter->netdev;
797 netdev_features_t features, vlan_features;
798
799 features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
800 NETIF_F_IPV6_CSUM | NETIF_F_GRO);
801 vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
802 NETIF_F_IPV6_CSUM | NETIF_F_HW_VLAN_FILTER);
803
804 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
805 features |= (NETIF_F_TSO | NETIF_F_TSO6);
806 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
807 }
808
809 if (netdev->features & NETIF_F_LRO)
810 features |= NETIF_F_LRO;
811
812 if (esw_cfg->offload_flags & BIT_0) {
813 netdev->features |= features;
814 if (!(esw_cfg->offload_flags & BIT_1))
815 netdev->features &= ~NETIF_F_TSO;
816 if (!(esw_cfg->offload_flags & BIT_2))
817 netdev->features &= ~NETIF_F_TSO6;
818 } else {
819 netdev->features &= ~features;
820 }
821
822 netdev->vlan_features = (features & vlan_features);
823 }
824
825 static int
826 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
827 {
828 void __iomem *priv_op;
829 u32 op_mode, priv_level;
830 int err = 0;
831
832 err = qlcnic_initialize_nic(adapter);
833 if (err)
834 return err;
835
836 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
837 return 0;
838
839 priv_op = adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE;
840 op_mode = readl(priv_op);
841 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
842
843 if (op_mode == QLC_DEV_DRV_DEFAULT)
844 priv_level = QLCNIC_MGMT_FUNC;
845 else
846 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
847
848 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
849 if (priv_level == QLCNIC_MGMT_FUNC) {
850 adapter->op_mode = QLCNIC_MGMT_FUNC;
851 err = qlcnic_init_pci_info(adapter);
852 if (err)
853 return err;
854 /* Set privilege level for other functions */
855 qlcnic_set_function_modes(adapter);
856 dev_info(&adapter->pdev->dev,
857 "HAL Version: %d, Management function\n",
858 adapter->fw_hal_version);
859 } else if (priv_level == QLCNIC_PRIV_FUNC) {
860 adapter->op_mode = QLCNIC_PRIV_FUNC;
861 dev_info(&adapter->pdev->dev,
862 "HAL Version: %d, Privileged function\n",
863 adapter->fw_hal_version);
864 }
865 }
866
867 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
868
869 return err;
870 }
871
872 static int
873 qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
874 {
875 struct qlcnic_esw_func_cfg esw_cfg;
876 struct qlcnic_npar_info *npar;
877 u8 i;
878
879 if (adapter->need_fw_reset)
880 return 0;
881
882 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
883 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
884 continue;
885 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
886 esw_cfg.pci_func = i;
887 esw_cfg.offload_flags = BIT_0;
888 esw_cfg.mac_override = BIT_0;
889 esw_cfg.promisc_mode = BIT_0;
890 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO)
891 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
892 if (qlcnic_config_switch_port(adapter, &esw_cfg))
893 return -EIO;
894 npar = &adapter->npars[i];
895 npar->pvid = esw_cfg.vlan_id;
896 npar->mac_override = esw_cfg.mac_override;
897 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
898 npar->discard_tagged = esw_cfg.discard_tagged;
899 npar->promisc_mode = esw_cfg.promisc_mode;
900 npar->offload_flags = esw_cfg.offload_flags;
901 }
902
903 return 0;
904 }
905
906 static int
907 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
908 struct qlcnic_npar_info *npar, int pci_func)
909 {
910 struct qlcnic_esw_func_cfg esw_cfg;
911 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
912 esw_cfg.pci_func = pci_func;
913 esw_cfg.vlan_id = npar->pvid;
914 esw_cfg.mac_override = npar->mac_override;
915 esw_cfg.discard_tagged = npar->discard_tagged;
916 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
917 esw_cfg.offload_flags = npar->offload_flags;
918 esw_cfg.promisc_mode = npar->promisc_mode;
919 if (qlcnic_config_switch_port(adapter, &esw_cfg))
920 return -EIO;
921
922 esw_cfg.op_mode = QLCNIC_ADD_VLAN;
923 if (qlcnic_config_switch_port(adapter, &esw_cfg))
924 return -EIO;
925
926 return 0;
927 }
928
929 static int
930 qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
931 {
932 int i, err;
933 struct qlcnic_npar_info *npar;
934 struct qlcnic_info nic_info;
935
936 if (!adapter->need_fw_reset)
937 return 0;
938
939 /* Set the NPAR config data after FW reset */
940 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
941 npar = &adapter->npars[i];
942 if (npar->type != QLCNIC_TYPE_NIC)
943 continue;
944 err = qlcnic_get_nic_info(adapter, &nic_info, i);
945 if (err)
946 return err;
947 nic_info.min_tx_bw = npar->min_bw;
948 nic_info.max_tx_bw = npar->max_bw;
949 err = qlcnic_set_nic_info(adapter, &nic_info);
950 if (err)
951 return err;
952
953 if (npar->enable_pm) {
954 err = qlcnic_config_port_mirroring(adapter,
955 npar->dest_npar, 1, i);
956 if (err)
957 return err;
958 }
959 err = qlcnic_reset_eswitch_config(adapter, npar, i);
960 if (err)
961 return err;
962 }
963 return 0;
964 }
965
966 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
967 {
968 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
969 u32 npar_state;
970
971 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
972 return 0;
973
974 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
975 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
976 msleep(1000);
977 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
978 }
979 if (!npar_opt_timeo) {
980 dev_err(&adapter->pdev->dev,
981 "Waiting for NPAR state to opertional timeout\n");
982 return -EIO;
983 }
984 return 0;
985 }
986
987 static int
988 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
989 {
990 int err;
991
992 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
993 adapter->op_mode != QLCNIC_MGMT_FUNC)
994 return 0;
995
996 err = qlcnic_set_default_offload_settings(adapter);
997 if (err)
998 return err;
999
1000 err = qlcnic_reset_npar_config(adapter);
1001 if (err)
1002 return err;
1003
1004 qlcnic_dev_set_npar_ready(adapter);
1005
1006 return err;
1007 }
1008
1009 static int
1010 qlcnic_start_firmware(struct qlcnic_adapter *adapter)
1011 {
1012 int err;
1013
1014 err = qlcnic_can_start_firmware(adapter);
1015 if (err < 0)
1016 return err;
1017 else if (!err)
1018 goto check_fw_status;
1019
1020 if (load_fw_file)
1021 qlcnic_request_firmware(adapter);
1022 else {
1023 err = qlcnic_check_flash_fw_ver(adapter);
1024 if (err)
1025 goto err_out;
1026
1027 adapter->fw_type = QLCNIC_FLASH_ROMIMAGE;
1028 }
1029
1030 err = qlcnic_need_fw_reset(adapter);
1031 if (err == 0)
1032 goto check_fw_status;
1033
1034 err = qlcnic_pinit_from_rom(adapter);
1035 if (err)
1036 goto err_out;
1037
1038 err = qlcnic_load_firmware(adapter);
1039 if (err)
1040 goto err_out;
1041
1042 qlcnic_release_firmware(adapter);
1043 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1044
1045 check_fw_status:
1046 err = qlcnic_check_fw_status(adapter);
1047 if (err)
1048 goto err_out;
1049
1050 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1051 qlcnic_idc_debug_info(adapter, 1);
1052
1053 err = qlcnic_check_eswitch_mode(adapter);
1054 if (err) {
1055 dev_err(&adapter->pdev->dev,
1056 "Memory allocation failed for eswitch\n");
1057 goto err_out;
1058 }
1059 err = qlcnic_set_mgmt_operations(adapter);
1060 if (err)
1061 goto err_out;
1062
1063 qlcnic_check_options(adapter);
1064 adapter->need_fw_reset = 0;
1065
1066 qlcnic_release_firmware(adapter);
1067 return 0;
1068
1069 err_out:
1070 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1071 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1072
1073 qlcnic_release_firmware(adapter);
1074 return err;
1075 }
1076
1077 static int
1078 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1079 {
1080 irq_handler_t handler;
1081 struct qlcnic_host_sds_ring *sds_ring;
1082 int err, ring;
1083
1084 unsigned long flags = 0;
1085 struct net_device *netdev = adapter->netdev;
1086 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1087
1088 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1089 handler = qlcnic_tmp_intr;
1090 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1091 flags |= IRQF_SHARED;
1092
1093 } else {
1094 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1095 handler = qlcnic_msix_intr;
1096 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1097 handler = qlcnic_msi_intr;
1098 else {
1099 flags |= IRQF_SHARED;
1100 handler = qlcnic_intr;
1101 }
1102 }
1103 adapter->irq = netdev->irq;
1104
1105 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1106 sds_ring = &recv_ctx->sds_rings[ring];
1107 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1108 err = request_irq(sds_ring->irq, handler,
1109 flags, sds_ring->name, sds_ring);
1110 if (err)
1111 return err;
1112 }
1113
1114 return 0;
1115 }
1116
1117 static void
1118 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1119 {
1120 int ring;
1121 struct qlcnic_host_sds_ring *sds_ring;
1122
1123 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1124
1125 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1126 sds_ring = &recv_ctx->sds_rings[ring];
1127 free_irq(sds_ring->irq, sds_ring);
1128 }
1129 }
1130
1131 static int
1132 __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1133 {
1134 int ring;
1135 struct qlcnic_host_rds_ring *rds_ring;
1136
1137 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1138 return -EIO;
1139
1140 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1141 return 0;
1142 if (qlcnic_set_eswitch_port_config(adapter))
1143 return -EIO;
1144
1145 if (qlcnic_fw_create_ctx(adapter))
1146 return -EIO;
1147
1148 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1149 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1150 qlcnic_post_rx_buffers(adapter, rds_ring);
1151 }
1152
1153 qlcnic_set_multi(netdev);
1154 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1155
1156 adapter->ahw->linkup = 0;
1157
1158 if (adapter->max_sds_rings > 1)
1159 qlcnic_config_rss(adapter, 1);
1160
1161 qlcnic_config_intr_coalesce(adapter);
1162
1163 if (netdev->features & NETIF_F_LRO)
1164 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1165
1166 qlcnic_napi_enable(adapter);
1167
1168 qlcnic_linkevent_request(adapter, 1);
1169
1170 adapter->reset_context = 0;
1171 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1172 return 0;
1173 }
1174
1175 /* Usage: During resume and firmware recovery module.*/
1176
1177 static int
1178 qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1179 {
1180 int err = 0;
1181
1182 rtnl_lock();
1183 if (netif_running(netdev))
1184 err = __qlcnic_up(adapter, netdev);
1185 rtnl_unlock();
1186
1187 return err;
1188 }
1189
1190 static void
1191 __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1192 {
1193 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1194 return;
1195
1196 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1197 return;
1198
1199 smp_mb();
1200 spin_lock(&adapter->tx_clean_lock);
1201 netif_carrier_off(netdev);
1202 netif_tx_disable(netdev);
1203
1204 qlcnic_free_mac_list(adapter);
1205
1206 if (adapter->fhash.fnum)
1207 qlcnic_delete_lb_filters(adapter);
1208
1209 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1210
1211 qlcnic_napi_disable(adapter);
1212
1213 qlcnic_fw_destroy_ctx(adapter);
1214
1215 qlcnic_reset_rx_buffers_list(adapter);
1216 qlcnic_release_tx_buffers(adapter);
1217 spin_unlock(&adapter->tx_clean_lock);
1218 }
1219
1220 /* Usage: During suspend and firmware recovery module */
1221
1222 static void
1223 qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1224 {
1225 rtnl_lock();
1226 if (netif_running(netdev))
1227 __qlcnic_down(adapter, netdev);
1228 rtnl_unlock();
1229
1230 }
1231
1232 static int
1233 qlcnic_attach(struct qlcnic_adapter *adapter)
1234 {
1235 struct net_device *netdev = adapter->netdev;
1236 struct pci_dev *pdev = adapter->pdev;
1237 int err;
1238
1239 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1240 return 0;
1241
1242 err = qlcnic_napi_add(adapter, netdev);
1243 if (err)
1244 return err;
1245
1246 err = qlcnic_alloc_sw_resources(adapter);
1247 if (err) {
1248 dev_err(&pdev->dev, "Error in setting sw resources\n");
1249 goto err_out_napi_del;
1250 }
1251
1252 err = qlcnic_alloc_hw_resources(adapter);
1253 if (err) {
1254 dev_err(&pdev->dev, "Error in setting hw resources\n");
1255 goto err_out_free_sw;
1256 }
1257
1258 err = qlcnic_request_irq(adapter);
1259 if (err) {
1260 dev_err(&pdev->dev, "failed to setup interrupt\n");
1261 goto err_out_free_hw;
1262 }
1263
1264 qlcnic_create_sysfs_entries(adapter);
1265
1266 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1267 return 0;
1268
1269 err_out_free_hw:
1270 qlcnic_free_hw_resources(adapter);
1271 err_out_free_sw:
1272 qlcnic_free_sw_resources(adapter);
1273 err_out_napi_del:
1274 qlcnic_napi_del(adapter);
1275 return err;
1276 }
1277
1278 static void
1279 qlcnic_detach(struct qlcnic_adapter *adapter)
1280 {
1281 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1282 return;
1283
1284 qlcnic_remove_sysfs_entries(adapter);
1285
1286 qlcnic_free_hw_resources(adapter);
1287 qlcnic_release_rx_buffers(adapter);
1288 qlcnic_free_irq(adapter);
1289 qlcnic_napi_del(adapter);
1290 qlcnic_free_sw_resources(adapter);
1291
1292 adapter->is_up = 0;
1293 }
1294
1295 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1296 {
1297 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1298 struct qlcnic_host_sds_ring *sds_ring;
1299 int ring;
1300
1301 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1302 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1303 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1304 sds_ring = &adapter->recv_ctx->sds_rings[ring];
1305 qlcnic_disable_int(sds_ring);
1306 }
1307 }
1308
1309 qlcnic_fw_destroy_ctx(adapter);
1310
1311 qlcnic_detach(adapter);
1312
1313 adapter->diag_test = 0;
1314 adapter->max_sds_rings = max_sds_rings;
1315
1316 if (qlcnic_attach(adapter))
1317 goto out;
1318
1319 if (netif_running(netdev))
1320 __qlcnic_up(adapter, netdev);
1321 out:
1322 netif_device_attach(netdev);
1323 }
1324
1325 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1326 {
1327 int err = 0;
1328 adapter->ahw = kzalloc(sizeof(struct qlcnic_hardware_context),
1329 GFP_KERNEL);
1330 if (!adapter->ahw) {
1331 dev_err(&adapter->pdev->dev,
1332 "Failed to allocate recv ctx resources for adapter\n");
1333 err = -ENOMEM;
1334 goto err_out;
1335 }
1336 adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1337 GFP_KERNEL);
1338 if (!adapter->recv_ctx) {
1339 dev_err(&adapter->pdev->dev,
1340 "Failed to allocate recv ctx resources for adapter\n");
1341 kfree(adapter->ahw);
1342 adapter->ahw = NULL;
1343 err = -ENOMEM;
1344 goto err_out;
1345 }
1346 /* Initialize interrupt coalesce parameters */
1347 adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1348 adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1349 adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1350 err_out:
1351 return err;
1352 }
1353
1354 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1355 {
1356 kfree(adapter->recv_ctx);
1357 adapter->recv_ctx = NULL;
1358
1359 if (adapter->ahw->fw_dump.tmpl_hdr) {
1360 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1361 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1362 }
1363 kfree(adapter->ahw);
1364 adapter->ahw = NULL;
1365 }
1366
1367 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1368 {
1369 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1370 struct qlcnic_host_sds_ring *sds_ring;
1371 struct qlcnic_host_rds_ring *rds_ring;
1372 int ring;
1373 int ret;
1374
1375 netif_device_detach(netdev);
1376
1377 if (netif_running(netdev))
1378 __qlcnic_down(adapter, netdev);
1379
1380 qlcnic_detach(adapter);
1381
1382 adapter->max_sds_rings = 1;
1383 adapter->diag_test = test;
1384
1385 ret = qlcnic_attach(adapter);
1386 if (ret) {
1387 netif_device_attach(netdev);
1388 return ret;
1389 }
1390
1391 ret = qlcnic_fw_create_ctx(adapter);
1392 if (ret) {
1393 qlcnic_detach(adapter);
1394 netif_device_attach(netdev);
1395 return ret;
1396 }
1397
1398 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1399 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1400 qlcnic_post_rx_buffers(adapter, rds_ring);
1401 }
1402
1403 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1404 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1405 sds_ring = &adapter->recv_ctx->sds_rings[ring];
1406 qlcnic_enable_int(sds_ring);
1407 }
1408 }
1409
1410 if (adapter->diag_test == QLCNIC_LOOPBACK_TEST) {
1411 adapter->ahw->loopback_state = 0;
1412 qlcnic_linkevent_request(adapter, 1);
1413 }
1414
1415 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1416
1417 return 0;
1418 }
1419
1420 /* Reset context in hardware only */
1421 static int
1422 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1423 {
1424 struct net_device *netdev = adapter->netdev;
1425
1426 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1427 return -EBUSY;
1428
1429 netif_device_detach(netdev);
1430
1431 qlcnic_down(adapter, netdev);
1432
1433 qlcnic_up(adapter, netdev);
1434
1435 netif_device_attach(netdev);
1436
1437 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1438 return 0;
1439 }
1440
1441 int
1442 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1443 {
1444 int err = 0;
1445 struct net_device *netdev = adapter->netdev;
1446
1447 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1448 return -EBUSY;
1449
1450 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1451
1452 netif_device_detach(netdev);
1453
1454 if (netif_running(netdev))
1455 __qlcnic_down(adapter, netdev);
1456
1457 qlcnic_detach(adapter);
1458
1459 if (netif_running(netdev)) {
1460 err = qlcnic_attach(adapter);
1461 if (!err)
1462 __qlcnic_up(adapter, netdev);
1463 }
1464
1465 netif_device_attach(netdev);
1466 }
1467
1468 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1469 return err;
1470 }
1471
1472 static int
1473 qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
1474 struct net_device *netdev, u8 pci_using_dac)
1475 {
1476 int err;
1477 struct pci_dev *pdev = adapter->pdev;
1478
1479 adapter->mc_enabled = 0;
1480 adapter->max_mc_count = 38;
1481
1482 netdev->netdev_ops = &qlcnic_netdev_ops;
1483 netdev->watchdog_timeo = 5*HZ;
1484
1485 qlcnic_change_mtu(netdev, netdev->mtu);
1486
1487 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1488
1489 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM |
1490 NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM;
1491
1492 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO)
1493 netdev->hw_features |= NETIF_F_TSO | NETIF_F_TSO6;
1494 if (pci_using_dac)
1495 netdev->hw_features |= NETIF_F_HIGHDMA;
1496
1497 netdev->vlan_features = netdev->hw_features;
1498
1499 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
1500 netdev->hw_features |= NETIF_F_HW_VLAN_TX;
1501 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1502 netdev->hw_features |= NETIF_F_LRO;
1503
1504 netdev->features |= netdev->hw_features |
1505 NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER;
1506
1507 netdev->irq = adapter->msix_entries[0].vector;
1508
1509 err = register_netdev(netdev);
1510 if (err) {
1511 dev_err(&pdev->dev, "failed to register net device\n");
1512 return err;
1513 }
1514
1515 return 0;
1516 }
1517
1518 static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *pci_using_dac)
1519 {
1520 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1521 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1522 *pci_using_dac = 1;
1523 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1524 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1525 *pci_using_dac = 0;
1526 else {
1527 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1528 return -EIO;
1529 }
1530
1531 return 0;
1532 }
1533
1534 static int
1535 qlcnic_alloc_msix_entries(struct qlcnic_adapter *adapter, u16 count)
1536 {
1537 adapter->msix_entries = kcalloc(count, sizeof(struct msix_entry),
1538 GFP_KERNEL);
1539
1540 if (adapter->msix_entries)
1541 return 0;
1542
1543 dev_err(&adapter->pdev->dev, "failed allocating msix_entries\n");
1544 return -ENOMEM;
1545 }
1546
1547 static int __devinit
1548 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1549 {
1550 struct net_device *netdev = NULL;
1551 struct qlcnic_adapter *adapter = NULL;
1552 int err;
1553 uint8_t revision_id;
1554 uint8_t pci_using_dac;
1555 char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
1556
1557 err = pci_enable_device(pdev);
1558 if (err)
1559 return err;
1560
1561 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1562 err = -ENODEV;
1563 goto err_out_disable_pdev;
1564 }
1565
1566 err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1567 if (err)
1568 goto err_out_disable_pdev;
1569
1570 err = pci_request_regions(pdev, qlcnic_driver_name);
1571 if (err)
1572 goto err_out_disable_pdev;
1573
1574 pci_set_master(pdev);
1575 pci_enable_pcie_error_reporting(pdev);
1576
1577 netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1578 if (!netdev) {
1579 err = -ENOMEM;
1580 goto err_out_free_res;
1581 }
1582
1583 SET_NETDEV_DEV(netdev, &pdev->dev);
1584
1585 adapter = netdev_priv(netdev);
1586 adapter->netdev = netdev;
1587 adapter->pdev = pdev;
1588
1589 if (qlcnic_alloc_adapter_resources(adapter))
1590 goto err_out_free_netdev;
1591
1592 adapter->dev_rst_time = jiffies;
1593 revision_id = pdev->revision;
1594 adapter->ahw->revision_id = revision_id;
1595 adapter->mac_learn = qlcnic_mac_learn;
1596
1597 rwlock_init(&adapter->ahw->crb_lock);
1598 mutex_init(&adapter->ahw->mem_lock);
1599
1600 spin_lock_init(&adapter->tx_clean_lock);
1601 INIT_LIST_HEAD(&adapter->mac_list);
1602
1603 err = qlcnic_setup_pci_map(adapter);
1604 if (err)
1605 goto err_out_free_hw;
1606
1607 /* This will be reset for mezz cards */
1608 adapter->portnum = adapter->ahw->pci_func;
1609
1610 err = qlcnic_get_board_info(adapter);
1611 if (err) {
1612 dev_err(&pdev->dev, "Error getting board config info.\n");
1613 goto err_out_iounmap;
1614 }
1615
1616 err = qlcnic_setup_idc_param(adapter);
1617 if (err)
1618 goto err_out_iounmap;
1619
1620 adapter->flags |= QLCNIC_NEED_FLR;
1621
1622 err = adapter->nic_ops->start_firmware(adapter);
1623 if (err) {
1624 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1625 goto err_out_decr_ref;
1626 }
1627
1628 if (qlcnic_read_mac_addr(adapter))
1629 dev_warn(&pdev->dev, "failed to read mac addr\n");
1630
1631 if (adapter->portnum == 0) {
1632 get_brd_name(adapter, brd_name);
1633
1634 pr_info("%s: %s Board Chip rev 0x%x\n",
1635 module_name(THIS_MODULE),
1636 brd_name, adapter->ahw->revision_id);
1637 }
1638
1639 qlcnic_clear_stats(adapter);
1640
1641 err = qlcnic_alloc_msix_entries(adapter, adapter->max_rx_ques);
1642 if (err)
1643 goto err_out_decr_ref;
1644
1645 qlcnic_setup_intr(adapter);
1646
1647 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1648 if (err)
1649 goto err_out_disable_msi;
1650
1651 pci_set_drvdata(pdev, adapter);
1652
1653 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1654
1655 switch (adapter->ahw->port_type) {
1656 case QLCNIC_GBE:
1657 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1658 adapter->netdev->name);
1659 break;
1660 case QLCNIC_XGBE:
1661 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1662 adapter->netdev->name);
1663 break;
1664 }
1665
1666 if (adapter->mac_learn)
1667 qlcnic_alloc_lb_filters_mem(adapter);
1668
1669 qlcnic_create_diag_entries(adapter);
1670
1671 return 0;
1672
1673 err_out_disable_msi:
1674 qlcnic_teardown_intr(adapter);
1675 kfree(adapter->msix_entries);
1676
1677 err_out_decr_ref:
1678 qlcnic_clr_all_drv_state(adapter, 0);
1679
1680 err_out_iounmap:
1681 qlcnic_cleanup_pci_map(adapter);
1682
1683 err_out_free_hw:
1684 qlcnic_free_adapter_resources(adapter);
1685
1686 err_out_free_netdev:
1687 free_netdev(netdev);
1688
1689 err_out_free_res:
1690 pci_release_regions(pdev);
1691
1692 err_out_disable_pdev:
1693 pci_set_drvdata(pdev, NULL);
1694 pci_disable_device(pdev);
1695 return err;
1696 }
1697
1698 static void __devexit qlcnic_remove(struct pci_dev *pdev)
1699 {
1700 struct qlcnic_adapter *adapter;
1701 struct net_device *netdev;
1702
1703 adapter = pci_get_drvdata(pdev);
1704 if (adapter == NULL)
1705 return;
1706
1707 netdev = adapter->netdev;
1708
1709 qlcnic_cancel_fw_work(adapter);
1710
1711 unregister_netdev(netdev);
1712
1713 qlcnic_detach(adapter);
1714
1715 if (adapter->npars != NULL)
1716 kfree(adapter->npars);
1717 if (adapter->eswitch != NULL)
1718 kfree(adapter->eswitch);
1719
1720 qlcnic_clr_all_drv_state(adapter, 0);
1721
1722 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1723
1724 qlcnic_free_lb_filters_mem(adapter);
1725
1726 qlcnic_teardown_intr(adapter);
1727 kfree(adapter->msix_entries);
1728
1729 qlcnic_remove_diag_entries(adapter);
1730
1731 qlcnic_cleanup_pci_map(adapter);
1732
1733 qlcnic_release_firmware(adapter);
1734
1735 pci_disable_pcie_error_reporting(pdev);
1736 pci_release_regions(pdev);
1737 pci_disable_device(pdev);
1738 pci_set_drvdata(pdev, NULL);
1739
1740 qlcnic_free_adapter_resources(adapter);
1741 free_netdev(netdev);
1742 }
1743 static int __qlcnic_shutdown(struct pci_dev *pdev)
1744 {
1745 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1746 struct net_device *netdev = adapter->netdev;
1747 int retval;
1748
1749 netif_device_detach(netdev);
1750
1751 qlcnic_cancel_fw_work(adapter);
1752
1753 if (netif_running(netdev))
1754 qlcnic_down(adapter, netdev);
1755
1756 qlcnic_clr_all_drv_state(adapter, 0);
1757
1758 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1759
1760 retval = pci_save_state(pdev);
1761 if (retval)
1762 return retval;
1763
1764 if (qlcnic_wol_supported(adapter)) {
1765 pci_enable_wake(pdev, PCI_D3cold, 1);
1766 pci_enable_wake(pdev, PCI_D3hot, 1);
1767 }
1768
1769 return 0;
1770 }
1771
1772 static void qlcnic_shutdown(struct pci_dev *pdev)
1773 {
1774 if (__qlcnic_shutdown(pdev))
1775 return;
1776
1777 pci_disable_device(pdev);
1778 }
1779
1780 #ifdef CONFIG_PM
1781 static int
1782 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1783 {
1784 int retval;
1785
1786 retval = __qlcnic_shutdown(pdev);
1787 if (retval)
1788 return retval;
1789
1790 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1791 return 0;
1792 }
1793
1794 static int
1795 qlcnic_resume(struct pci_dev *pdev)
1796 {
1797 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1798 struct net_device *netdev = adapter->netdev;
1799 int err;
1800
1801 err = pci_enable_device(pdev);
1802 if (err)
1803 return err;
1804
1805 pci_set_power_state(pdev, PCI_D0);
1806 pci_set_master(pdev);
1807 pci_restore_state(pdev);
1808
1809 err = adapter->nic_ops->start_firmware(adapter);
1810 if (err) {
1811 dev_err(&pdev->dev, "failed to start firmware\n");
1812 return err;
1813 }
1814
1815 if (netif_running(netdev)) {
1816 err = qlcnic_up(adapter, netdev);
1817 if (err)
1818 goto done;
1819
1820 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1821 }
1822 done:
1823 netif_device_attach(netdev);
1824 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1825 return 0;
1826 }
1827 #endif
1828
1829 static int qlcnic_open(struct net_device *netdev)
1830 {
1831 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1832 int err;
1833
1834 netif_carrier_off(netdev);
1835
1836 err = qlcnic_attach(adapter);
1837 if (err)
1838 return err;
1839
1840 err = __qlcnic_up(adapter, netdev);
1841 if (err)
1842 goto err_out;
1843
1844 netif_start_queue(netdev);
1845
1846 return 0;
1847
1848 err_out:
1849 qlcnic_detach(adapter);
1850 return err;
1851 }
1852
1853 /*
1854 * qlcnic_close - Disables a network interface entry point
1855 */
1856 static int qlcnic_close(struct net_device *netdev)
1857 {
1858 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1859
1860 __qlcnic_down(adapter, netdev);
1861 return 0;
1862 }
1863
1864 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
1865 {
1866 void *head;
1867 int i;
1868
1869 if (adapter->fhash.fmax && adapter->fhash.fhead)
1870 return;
1871
1872 spin_lock_init(&adapter->mac_learn_lock);
1873
1874 head = kcalloc(QLCNIC_LB_MAX_FILTERS, sizeof(struct hlist_head),
1875 GFP_KERNEL);
1876 if (!head)
1877 return;
1878
1879 adapter->fhash.fmax = QLCNIC_LB_MAX_FILTERS;
1880 adapter->fhash.fhead = head;
1881
1882 for (i = 0; i < adapter->fhash.fmax; i++)
1883 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
1884 }
1885
1886 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
1887 {
1888 if (adapter->fhash.fmax && adapter->fhash.fhead)
1889 kfree(adapter->fhash.fhead);
1890
1891 adapter->fhash.fhead = NULL;
1892 adapter->fhash.fmax = 0;
1893 }
1894
1895 static void qlcnic_change_filter(struct qlcnic_adapter *adapter,
1896 u64 uaddr, __le16 vlan_id, struct qlcnic_host_tx_ring *tx_ring)
1897 {
1898 struct cmd_desc_type0 *hwdesc;
1899 struct qlcnic_nic_req *req;
1900 struct qlcnic_mac_req *mac_req;
1901 struct qlcnic_vlan_req *vlan_req;
1902 u32 producer;
1903 u64 word;
1904
1905 producer = tx_ring->producer;
1906 hwdesc = &tx_ring->desc_head[tx_ring->producer];
1907
1908 req = (struct qlcnic_nic_req *)hwdesc;
1909 memset(req, 0, sizeof(struct qlcnic_nic_req));
1910 req->qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
1911
1912 word = QLCNIC_MAC_EVENT | ((u64)(adapter->portnum) << 16);
1913 req->req_hdr = cpu_to_le64(word);
1914
1915 mac_req = (struct qlcnic_mac_req *)&(req->words[0]);
1916 mac_req->op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD;
1917 memcpy(mac_req->mac_addr, &uaddr, ETH_ALEN);
1918
1919 vlan_req = (struct qlcnic_vlan_req *)&req->words[1];
1920 vlan_req->vlan_id = vlan_id;
1921
1922 tx_ring->producer = get_next_index(producer, tx_ring->num_desc);
1923 smp_mb();
1924 }
1925
1926 #define QLCNIC_MAC_HASH(MAC)\
1927 ((((MAC) & 0x70000) >> 0x10) | (((MAC) & 0x70000000000ULL) >> 0x25))
1928
1929 static void
1930 qlcnic_send_filter(struct qlcnic_adapter *adapter,
1931 struct qlcnic_host_tx_ring *tx_ring,
1932 struct cmd_desc_type0 *first_desc,
1933 struct sk_buff *skb)
1934 {
1935 struct ethhdr *phdr = (struct ethhdr *)(skb->data);
1936 struct qlcnic_filter *fil, *tmp_fil;
1937 struct hlist_node *tmp_hnode, *n;
1938 struct hlist_head *head;
1939 u64 src_addr = 0;
1940 __le16 vlan_id = 0;
1941 u8 hindex;
1942
1943 if (!compare_ether_addr(phdr->h_source, adapter->mac_addr))
1944 return;
1945
1946 if (adapter->fhash.fnum >= adapter->fhash.fmax)
1947 return;
1948
1949 /* Only NPAR capable devices support vlan based learning*/
1950 if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
1951 vlan_id = first_desc->vlan_TCI;
1952 memcpy(&src_addr, phdr->h_source, ETH_ALEN);
1953 hindex = QLCNIC_MAC_HASH(src_addr) & (QLCNIC_LB_MAX_FILTERS - 1);
1954 head = &(adapter->fhash.fhead[hindex]);
1955
1956 hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
1957 if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) &&
1958 tmp_fil->vlan_id == vlan_id) {
1959
1960 if (jiffies >
1961 (QLCNIC_READD_AGE * HZ + tmp_fil->ftime))
1962 qlcnic_change_filter(adapter, src_addr, vlan_id,
1963 tx_ring);
1964 tmp_fil->ftime = jiffies;
1965 return;
1966 }
1967 }
1968
1969 fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC);
1970 if (!fil)
1971 return;
1972
1973 qlcnic_change_filter(adapter, src_addr, vlan_id, tx_ring);
1974
1975 fil->ftime = jiffies;
1976 fil->vlan_id = vlan_id;
1977 memcpy(fil->faddr, &src_addr, ETH_ALEN);
1978 spin_lock(&adapter->mac_learn_lock);
1979 hlist_add_head(&(fil->fnode), head);
1980 adapter->fhash.fnum++;
1981 spin_unlock(&adapter->mac_learn_lock);
1982 }
1983
1984 static int
1985 qlcnic_tx_pkt(struct qlcnic_adapter *adapter,
1986 struct cmd_desc_type0 *first_desc,
1987 struct sk_buff *skb)
1988 {
1989 u8 opcode = 0, hdr_len = 0;
1990 u16 flags = 0, vlan_tci = 0;
1991 int copied, offset, copy_len;
1992 struct cmd_desc_type0 *hwdesc;
1993 struct vlan_ethhdr *vh;
1994 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
1995 u16 protocol = ntohs(skb->protocol);
1996 u32 producer = tx_ring->producer;
1997
1998 if (protocol == ETH_P_8021Q) {
1999 vh = (struct vlan_ethhdr *)skb->data;
2000 flags = FLAGS_VLAN_TAGGED;
2001 vlan_tci = vh->h_vlan_TCI;
2002 } else if (vlan_tx_tag_present(skb)) {
2003 flags = FLAGS_VLAN_OOB;
2004 vlan_tci = vlan_tx_tag_get(skb);
2005 }
2006 if (unlikely(adapter->pvid)) {
2007 if (vlan_tci && !(adapter->flags & QLCNIC_TAGGING_ENABLED))
2008 return -EIO;
2009 if (vlan_tci && (adapter->flags & QLCNIC_TAGGING_ENABLED))
2010 goto set_flags;
2011
2012 flags = FLAGS_VLAN_OOB;
2013 vlan_tci = adapter->pvid;
2014 }
2015 set_flags:
2016 qlcnic_set_tx_vlan_tci(first_desc, vlan_tci);
2017 qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
2018
2019 if (*(skb->data) & BIT_0) {
2020 flags |= BIT_0;
2021 memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN);
2022 }
2023 opcode = TX_ETHER_PKT;
2024 if ((adapter->netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
2025 skb_shinfo(skb)->gso_size > 0) {
2026
2027 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
2028
2029 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
2030 first_desc->total_hdr_length = hdr_len;
2031
2032 opcode = (protocol == ETH_P_IPV6) ? TX_TCP_LSO6 : TX_TCP_LSO;
2033
2034 /* For LSO, we need to copy the MAC/IP/TCP headers into
2035 * the descriptor ring */
2036 copied = 0;
2037 offset = 2;
2038
2039 if (flags & FLAGS_VLAN_OOB) {
2040 first_desc->total_hdr_length += VLAN_HLEN;
2041 first_desc->tcp_hdr_offset = VLAN_HLEN;
2042 first_desc->ip_hdr_offset = VLAN_HLEN;
2043 /* Only in case of TSO on vlan device */
2044 flags |= FLAGS_VLAN_TAGGED;
2045
2046 /* Create a TSO vlan header template for firmware */
2047
2048 hwdesc = &tx_ring->desc_head[producer];
2049 tx_ring->cmd_buf_arr[producer].skb = NULL;
2050
2051 copy_len = min((int)sizeof(struct cmd_desc_type0) -
2052 offset, hdr_len + VLAN_HLEN);
2053
2054 vh = (struct vlan_ethhdr *)((char *) hwdesc + 2);
2055 skb_copy_from_linear_data(skb, vh, 12);
2056 vh->h_vlan_proto = htons(ETH_P_8021Q);
2057 vh->h_vlan_TCI = htons(vlan_tci);
2058
2059 skb_copy_from_linear_data_offset(skb, 12,
2060 (char *)vh + 16, copy_len - 16);
2061
2062 copied = copy_len - VLAN_HLEN;
2063 offset = 0;
2064
2065 producer = get_next_index(producer, tx_ring->num_desc);
2066 }
2067
2068 while (copied < hdr_len) {
2069
2070 copy_len = min((int)sizeof(struct cmd_desc_type0) -
2071 offset, (hdr_len - copied));
2072
2073 hwdesc = &tx_ring->desc_head[producer];
2074 tx_ring->cmd_buf_arr[producer].skb = NULL;
2075
2076 skb_copy_from_linear_data_offset(skb, copied,
2077 (char *) hwdesc + offset, copy_len);
2078
2079 copied += copy_len;
2080 offset = 0;
2081
2082 producer = get_next_index(producer, tx_ring->num_desc);
2083 }
2084
2085 tx_ring->producer = producer;
2086 smp_mb();
2087 adapter->stats.lso_frames++;
2088
2089 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
2090 u8 l4proto;
2091
2092 if (protocol == ETH_P_IP) {
2093 l4proto = ip_hdr(skb)->protocol;
2094
2095 if (l4proto == IPPROTO_TCP)
2096 opcode = TX_TCP_PKT;
2097 else if (l4proto == IPPROTO_UDP)
2098 opcode = TX_UDP_PKT;
2099 } else if (protocol == ETH_P_IPV6) {
2100 l4proto = ipv6_hdr(skb)->nexthdr;
2101
2102 if (l4proto == IPPROTO_TCP)
2103 opcode = TX_TCPV6_PKT;
2104 else if (l4proto == IPPROTO_UDP)
2105 opcode = TX_UDPV6_PKT;
2106 }
2107 }
2108 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
2109 first_desc->ip_hdr_offset += skb_network_offset(skb);
2110 qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
2111
2112 return 0;
2113 }
2114
2115 static int
2116 qlcnic_map_tx_skb(struct pci_dev *pdev,
2117 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
2118 {
2119 struct qlcnic_skb_frag *nf;
2120 struct skb_frag_struct *frag;
2121 int i, nr_frags;
2122 dma_addr_t map;
2123
2124 nr_frags = skb_shinfo(skb)->nr_frags;
2125 nf = &pbuf->frag_array[0];
2126
2127 map = pci_map_single(pdev, skb->data,
2128 skb_headlen(skb), PCI_DMA_TODEVICE);
2129 if (pci_dma_mapping_error(pdev, map))
2130 goto out_err;
2131
2132 nf->dma = map;
2133 nf->length = skb_headlen(skb);
2134
2135 for (i = 0; i < nr_frags; i++) {
2136 frag = &skb_shinfo(skb)->frags[i];
2137 nf = &pbuf->frag_array[i+1];
2138
2139 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
2140 DMA_TO_DEVICE);
2141 if (dma_mapping_error(&pdev->dev, map))
2142 goto unwind;
2143
2144 nf->dma = map;
2145 nf->length = skb_frag_size(frag);
2146 }
2147
2148 return 0;
2149
2150 unwind:
2151 while (--i >= 0) {
2152 nf = &pbuf->frag_array[i+1];
2153 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2154 }
2155
2156 nf = &pbuf->frag_array[0];
2157 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2158
2159 out_err:
2160 return -ENOMEM;
2161 }
2162
2163 static void
2164 qlcnic_unmap_buffers(struct pci_dev *pdev, struct sk_buff *skb,
2165 struct qlcnic_cmd_buffer *pbuf)
2166 {
2167 struct qlcnic_skb_frag *nf = &pbuf->frag_array[0];
2168 int nr_frags = skb_shinfo(skb)->nr_frags;
2169 int i;
2170
2171 for (i = 0; i < nr_frags; i++) {
2172 nf = &pbuf->frag_array[i+1];
2173 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2174 }
2175
2176 nf = &pbuf->frag_array[0];
2177 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2178 pbuf->skb = NULL;
2179 }
2180
2181 static inline void
2182 qlcnic_clear_cmddesc(u64 *desc)
2183 {
2184 desc[0] = 0ULL;
2185 desc[2] = 0ULL;
2186 desc[7] = 0ULL;
2187 }
2188
2189 netdev_tx_t
2190 qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2191 {
2192 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2193 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2194 struct qlcnic_cmd_buffer *pbuf;
2195 struct qlcnic_skb_frag *buffrag;
2196 struct cmd_desc_type0 *hwdesc, *first_desc;
2197 struct pci_dev *pdev;
2198 struct ethhdr *phdr;
2199 int delta = 0;
2200 int i, k;
2201
2202 u32 producer;
2203 int frag_count;
2204 u32 num_txd = tx_ring->num_desc;
2205
2206 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
2207 netif_stop_queue(netdev);
2208 return NETDEV_TX_BUSY;
2209 }
2210
2211 if (adapter->flags & QLCNIC_MACSPOOF) {
2212 phdr = (struct ethhdr *)skb->data;
2213 if (compare_ether_addr(phdr->h_source,
2214 adapter->mac_addr))
2215 goto drop_packet;
2216 }
2217
2218 frag_count = skb_shinfo(skb)->nr_frags + 1;
2219 /* 14 frags supported for normal packet and
2220 * 32 frags supported for TSO packet
2221 */
2222 if (!skb_is_gso(skb) && frag_count > QLCNIC_MAX_FRAGS_PER_TX) {
2223
2224 for (i = 0; i < (frag_count - QLCNIC_MAX_FRAGS_PER_TX); i++)
2225 delta += skb_frag_size(&skb_shinfo(skb)->frags[i]);
2226
2227 if (!__pskb_pull_tail(skb, delta))
2228 goto drop_packet;
2229
2230 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2231 }
2232
2233 if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2234 netif_stop_queue(netdev);
2235 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
2236 netif_start_queue(netdev);
2237 else {
2238 adapter->stats.xmit_off++;
2239 return NETDEV_TX_BUSY;
2240 }
2241 }
2242
2243 producer = tx_ring->producer;
2244 pbuf = &tx_ring->cmd_buf_arr[producer];
2245
2246 pdev = adapter->pdev;
2247
2248 first_desc = hwdesc = &tx_ring->desc_head[producer];
2249 qlcnic_clear_cmddesc((u64 *)hwdesc);
2250
2251 if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
2252 adapter->stats.tx_dma_map_error++;
2253 goto drop_packet;
2254 }
2255
2256 pbuf->skb = skb;
2257 pbuf->frag_count = frag_count;
2258
2259 qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
2260 qlcnic_set_tx_port(first_desc, adapter->portnum);
2261
2262 for (i = 0; i < frag_count; i++) {
2263
2264 k = i % 4;
2265
2266 if ((k == 0) && (i > 0)) {
2267 /* move to next desc.*/
2268 producer = get_next_index(producer, num_txd);
2269 hwdesc = &tx_ring->desc_head[producer];
2270 qlcnic_clear_cmddesc((u64 *)hwdesc);
2271 tx_ring->cmd_buf_arr[producer].skb = NULL;
2272 }
2273
2274 buffrag = &pbuf->frag_array[i];
2275
2276 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2277 switch (k) {
2278 case 0:
2279 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2280 break;
2281 case 1:
2282 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2283 break;
2284 case 2:
2285 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2286 break;
2287 case 3:
2288 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2289 break;
2290 }
2291 }
2292
2293 tx_ring->producer = get_next_index(producer, num_txd);
2294 smp_mb();
2295
2296 if (unlikely(qlcnic_tx_pkt(adapter, first_desc, skb)))
2297 goto unwind_buff;
2298
2299 if (adapter->mac_learn)
2300 qlcnic_send_filter(adapter, tx_ring, first_desc, skb);
2301
2302 adapter->stats.txbytes += skb->len;
2303 adapter->stats.xmitcalled++;
2304
2305 qlcnic_update_cmd_producer(adapter, tx_ring);
2306
2307 return NETDEV_TX_OK;
2308
2309 unwind_buff:
2310 qlcnic_unmap_buffers(pdev, skb, pbuf);
2311 drop_packet:
2312 adapter->stats.txdropped++;
2313 dev_kfree_skb_any(skb);
2314 return NETDEV_TX_OK;
2315 }
2316
2317 static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2318 {
2319 struct net_device *netdev = adapter->netdev;
2320 u32 temp, temp_state, temp_val;
2321 int rv = 0;
2322
2323 temp = QLCRD32(adapter, CRB_TEMP_STATE);
2324
2325 temp_state = qlcnic_get_temp_state(temp);
2326 temp_val = qlcnic_get_temp_val(temp);
2327
2328 if (temp_state == QLCNIC_TEMP_PANIC) {
2329 dev_err(&netdev->dev,
2330 "Device temperature %d degrees C exceeds"
2331 " maximum allowed. Hardware has been shut down.\n",
2332 temp_val);
2333 rv = 1;
2334 } else if (temp_state == QLCNIC_TEMP_WARN) {
2335 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
2336 dev_err(&netdev->dev,
2337 "Device temperature %d degrees C "
2338 "exceeds operating range."
2339 " Immediate action needed.\n",
2340 temp_val);
2341 }
2342 } else {
2343 if (adapter->temp == QLCNIC_TEMP_WARN) {
2344 dev_info(&netdev->dev,
2345 "Device temperature is now %d degrees C"
2346 " in normal range.\n", temp_val);
2347 }
2348 }
2349 adapter->temp = temp_state;
2350 return rv;
2351 }
2352
2353 void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
2354 {
2355 struct net_device *netdev = adapter->netdev;
2356
2357 if (adapter->ahw->linkup && !linkup) {
2358 netdev_info(netdev, "NIC Link is down\n");
2359 adapter->ahw->linkup = 0;
2360 if (netif_running(netdev)) {
2361 netif_carrier_off(netdev);
2362 netif_stop_queue(netdev);
2363 }
2364 } else if (!adapter->ahw->linkup && linkup) {
2365 netdev_info(netdev, "NIC Link is up\n");
2366 adapter->ahw->linkup = 1;
2367 if (netif_running(netdev)) {
2368 netif_carrier_on(netdev);
2369 netif_wake_queue(netdev);
2370 }
2371 }
2372 }
2373
2374 static void qlcnic_tx_timeout(struct net_device *netdev)
2375 {
2376 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2377
2378 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2379 return;
2380
2381 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2382
2383 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2384 adapter->need_fw_reset = 1;
2385 else
2386 adapter->reset_context = 1;
2387 }
2388
2389 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2390 {
2391 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2392 struct net_device_stats *stats = &netdev->stats;
2393
2394 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2395 stats->tx_packets = adapter->stats.xmitfinished;
2396 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2397 stats->tx_bytes = adapter->stats.txbytes;
2398 stats->rx_dropped = adapter->stats.rxdropped;
2399 stats->tx_dropped = adapter->stats.txdropped;
2400
2401 return stats;
2402 }
2403
2404 static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
2405 {
2406 u32 status;
2407
2408 status = readl(adapter->isr_int_vec);
2409
2410 if (!(status & adapter->int_vec_bit))
2411 return IRQ_NONE;
2412
2413 /* check interrupt state machine, to be sure */
2414 status = readl(adapter->crb_int_state_reg);
2415 if (!ISR_LEGACY_INT_TRIGGERED(status))
2416 return IRQ_NONE;
2417
2418 writel(0xffffffff, adapter->tgt_status_reg);
2419 /* read twice to ensure write is flushed */
2420 readl(adapter->isr_int_vec);
2421 readl(adapter->isr_int_vec);
2422
2423 return IRQ_HANDLED;
2424 }
2425
2426 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2427 {
2428 struct qlcnic_host_sds_ring *sds_ring = data;
2429 struct qlcnic_adapter *adapter = sds_ring->adapter;
2430
2431 if (adapter->flags & QLCNIC_MSIX_ENABLED)
2432 goto done;
2433 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2434 writel(0xffffffff, adapter->tgt_status_reg);
2435 goto done;
2436 }
2437
2438 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2439 return IRQ_NONE;
2440
2441 done:
2442 adapter->diag_cnt++;
2443 qlcnic_enable_int(sds_ring);
2444 return IRQ_HANDLED;
2445 }
2446
2447 static irqreturn_t qlcnic_intr(int irq, void *data)
2448 {
2449 struct qlcnic_host_sds_ring *sds_ring = data;
2450 struct qlcnic_adapter *adapter = sds_ring->adapter;
2451
2452 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2453 return IRQ_NONE;
2454
2455 napi_schedule(&sds_ring->napi);
2456
2457 return IRQ_HANDLED;
2458 }
2459
2460 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2461 {
2462 struct qlcnic_host_sds_ring *sds_ring = data;
2463 struct qlcnic_adapter *adapter = sds_ring->adapter;
2464
2465 /* clear interrupt */
2466 writel(0xffffffff, adapter->tgt_status_reg);
2467
2468 napi_schedule(&sds_ring->napi);
2469 return IRQ_HANDLED;
2470 }
2471
2472 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2473 {
2474 struct qlcnic_host_sds_ring *sds_ring = data;
2475
2476 napi_schedule(&sds_ring->napi);
2477 return IRQ_HANDLED;
2478 }
2479
2480 static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
2481 {
2482 u32 sw_consumer, hw_consumer;
2483 int count = 0, i;
2484 struct qlcnic_cmd_buffer *buffer;
2485 struct pci_dev *pdev = adapter->pdev;
2486 struct net_device *netdev = adapter->netdev;
2487 struct qlcnic_skb_frag *frag;
2488 int done;
2489 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2490
2491 if (!spin_trylock(&adapter->tx_clean_lock))
2492 return 1;
2493
2494 sw_consumer = tx_ring->sw_consumer;
2495 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2496
2497 while (sw_consumer != hw_consumer) {
2498 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
2499 if (buffer->skb) {
2500 frag = &buffer->frag_array[0];
2501 pci_unmap_single(pdev, frag->dma, frag->length,
2502 PCI_DMA_TODEVICE);
2503 frag->dma = 0ULL;
2504 for (i = 1; i < buffer->frag_count; i++) {
2505 frag++;
2506 pci_unmap_page(pdev, frag->dma, frag->length,
2507 PCI_DMA_TODEVICE);
2508 frag->dma = 0ULL;
2509 }
2510
2511 adapter->stats.xmitfinished++;
2512 dev_kfree_skb_any(buffer->skb);
2513 buffer->skb = NULL;
2514 }
2515
2516 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
2517 if (++count >= MAX_STATUS_HANDLE)
2518 break;
2519 }
2520
2521 if (count && netif_running(netdev)) {
2522 tx_ring->sw_consumer = sw_consumer;
2523
2524 smp_mb();
2525
2526 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
2527 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
2528 netif_wake_queue(netdev);
2529 adapter->stats.xmit_on++;
2530 }
2531 }
2532 adapter->tx_timeo_cnt = 0;
2533 }
2534 /*
2535 * If everything is freed up to consumer then check if the ring is full
2536 * If the ring is full then check if more needs to be freed and
2537 * schedule the call back again.
2538 *
2539 * This happens when there are 2 CPUs. One could be freeing and the
2540 * other filling it. If the ring is full when we get out of here and
2541 * the card has already interrupted the host then the host can miss the
2542 * interrupt.
2543 *
2544 * There is still a possible race condition and the host could miss an
2545 * interrupt. The card has to take care of this.
2546 */
2547 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2548 done = (sw_consumer == hw_consumer);
2549 spin_unlock(&adapter->tx_clean_lock);
2550
2551 return done;
2552 }
2553
2554 static int qlcnic_poll(struct napi_struct *napi, int budget)
2555 {
2556 struct qlcnic_host_sds_ring *sds_ring =
2557 container_of(napi, struct qlcnic_host_sds_ring, napi);
2558
2559 struct qlcnic_adapter *adapter = sds_ring->adapter;
2560
2561 int tx_complete;
2562 int work_done;
2563
2564 tx_complete = qlcnic_process_cmd_ring(adapter);
2565
2566 work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2567
2568 if ((work_done < budget) && tx_complete) {
2569 napi_complete(&sds_ring->napi);
2570 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2571 qlcnic_enable_int(sds_ring);
2572 }
2573
2574 return work_done;
2575 }
2576
2577 static int qlcnic_rx_poll(struct napi_struct *napi, int budget)
2578 {
2579 struct qlcnic_host_sds_ring *sds_ring =
2580 container_of(napi, struct qlcnic_host_sds_ring, napi);
2581
2582 struct qlcnic_adapter *adapter = sds_ring->adapter;
2583 int work_done;
2584
2585 work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2586
2587 if (work_done < budget) {
2588 napi_complete(&sds_ring->napi);
2589 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2590 qlcnic_enable_int(sds_ring);
2591 }
2592
2593 return work_done;
2594 }
2595
2596 #ifdef CONFIG_NET_POLL_CONTROLLER
2597 static void qlcnic_poll_controller(struct net_device *netdev)
2598 {
2599 int ring;
2600 struct qlcnic_host_sds_ring *sds_ring;
2601 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2602 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2603
2604 disable_irq(adapter->irq);
2605 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2606 sds_ring = &recv_ctx->sds_rings[ring];
2607 qlcnic_intr(adapter->irq, sds_ring);
2608 }
2609 enable_irq(adapter->irq);
2610 }
2611 #endif
2612
2613 static void
2614 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2615 {
2616 u32 val;
2617
2618 val = adapter->portnum & 0xf;
2619 val |= encoding << 7;
2620 val |= (jiffies - adapter->dev_rst_time) << 8;
2621
2622 QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2623 adapter->dev_rst_time = jiffies;
2624 }
2625
2626 static int
2627 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2628 {
2629 u32 val;
2630
2631 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2632 state != QLCNIC_DEV_NEED_QUISCENT);
2633
2634 if (qlcnic_api_lock(adapter))
2635 return -EIO;
2636
2637 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2638
2639 if (state == QLCNIC_DEV_NEED_RESET)
2640 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2641 else if (state == QLCNIC_DEV_NEED_QUISCENT)
2642 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2643
2644 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2645
2646 qlcnic_api_unlock(adapter);
2647
2648 return 0;
2649 }
2650
2651 static int
2652 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2653 {
2654 u32 val;
2655
2656 if (qlcnic_api_lock(adapter))
2657 return -EBUSY;
2658
2659 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2660 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2661 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2662
2663 qlcnic_api_unlock(adapter);
2664
2665 return 0;
2666 }
2667
2668 static void
2669 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2670 {
2671 u32 val;
2672
2673 if (qlcnic_api_lock(adapter))
2674 goto err;
2675
2676 val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2677 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2678 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2679
2680 if (failed) {
2681 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
2682 dev_info(&adapter->pdev->dev,
2683 "Device state set to Failed. Please Reboot\n");
2684 } else if (!(val & 0x11111111))
2685 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
2686
2687 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2688 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2689 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2690
2691 qlcnic_api_unlock(adapter);
2692 err:
2693 adapter->fw_fail_cnt = 0;
2694 adapter->flags &= ~QLCNIC_FW_HANG;
2695 clear_bit(__QLCNIC_START_FW, &adapter->state);
2696 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2697 }
2698
2699 /* Grab api lock, before checking state */
2700 static int
2701 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2702 {
2703 int act, state, active_mask;
2704
2705 state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2706 act = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2707
2708 if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2709 active_mask = (~(1 << (adapter->ahw->pci_func * 4)));
2710 act = act & active_mask;
2711 }
2712
2713 if (((state & 0x11111111) == (act & 0x11111111)) ||
2714 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2715 return 0;
2716 else
2717 return 1;
2718 }
2719
2720 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2721 {
2722 u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2723
2724 if (val != QLCNIC_DRV_IDC_VER) {
2725 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2726 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2727 }
2728
2729 return 0;
2730 }
2731
2732 static int
2733 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2734 {
2735 u32 val, prev_state;
2736 u8 dev_init_timeo = adapter->dev_init_timeo;
2737 u8 portnum = adapter->portnum;
2738 u8 ret;
2739
2740 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2741 return 1;
2742
2743 if (qlcnic_api_lock(adapter))
2744 return -1;
2745
2746 val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2747 if (!(val & (1 << (portnum * 4)))) {
2748 QLC_DEV_SET_REF_CNT(val, portnum);
2749 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2750 }
2751
2752 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2753 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2754
2755 switch (prev_state) {
2756 case QLCNIC_DEV_COLD:
2757 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
2758 QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER);
2759 qlcnic_idc_debug_info(adapter, 0);
2760 qlcnic_api_unlock(adapter);
2761 return 1;
2762
2763 case QLCNIC_DEV_READY:
2764 ret = qlcnic_check_idc_ver(adapter);
2765 qlcnic_api_unlock(adapter);
2766 return ret;
2767
2768 case QLCNIC_DEV_NEED_RESET:
2769 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2770 QLC_DEV_SET_RST_RDY(val, portnum);
2771 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2772 break;
2773
2774 case QLCNIC_DEV_NEED_QUISCENT:
2775 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2776 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2777 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2778 break;
2779
2780 case QLCNIC_DEV_FAILED:
2781 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2782 qlcnic_api_unlock(adapter);
2783 return -1;
2784
2785 case QLCNIC_DEV_INITIALIZING:
2786 case QLCNIC_DEV_QUISCENT:
2787 break;
2788 }
2789
2790 qlcnic_api_unlock(adapter);
2791
2792 do {
2793 msleep(1000);
2794 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2795
2796 if (prev_state == QLCNIC_DEV_QUISCENT)
2797 continue;
2798 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2799
2800 if (!dev_init_timeo) {
2801 dev_err(&adapter->pdev->dev,
2802 "Waiting for device to initialize timeout\n");
2803 return -1;
2804 }
2805
2806 if (qlcnic_api_lock(adapter))
2807 return -1;
2808
2809 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2810 QLC_DEV_CLR_RST_QSCNT(val, portnum);
2811 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2812
2813 ret = qlcnic_check_idc_ver(adapter);
2814 qlcnic_api_unlock(adapter);
2815
2816 return ret;
2817 }
2818
2819 static void
2820 qlcnic_fwinit_work(struct work_struct *work)
2821 {
2822 struct qlcnic_adapter *adapter = container_of(work,
2823 struct qlcnic_adapter, fw_work.work);
2824 u32 dev_state = 0xf;
2825 u32 val;
2826
2827 if (qlcnic_api_lock(adapter))
2828 goto err_ret;
2829
2830 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2831 if (dev_state == QLCNIC_DEV_QUISCENT ||
2832 dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2833 qlcnic_api_unlock(adapter);
2834 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2835 FW_POLL_DELAY * 2);
2836 return;
2837 }
2838
2839 if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
2840 qlcnic_api_unlock(adapter);
2841 goto wait_npar;
2842 }
2843
2844 if (dev_state == QLCNIC_DEV_INITIALIZING ||
2845 dev_state == QLCNIC_DEV_READY) {
2846 dev_info(&adapter->pdev->dev, "Detected state change from "
2847 "DEV_NEED_RESET, skipping ack check\n");
2848 goto skip_ack_check;
2849 }
2850
2851 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2852 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2853 adapter->reset_ack_timeo);
2854 goto skip_ack_check;
2855 }
2856
2857 if (!qlcnic_check_drv_state(adapter)) {
2858 skip_ack_check:
2859 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2860
2861 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2862 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2863 QLCNIC_DEV_INITIALIZING);
2864 set_bit(__QLCNIC_START_FW, &adapter->state);
2865 QLCDB(adapter, DRV, "Restarting fw\n");
2866 qlcnic_idc_debug_info(adapter, 0);
2867 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2868 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2869 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2870 }
2871
2872 qlcnic_api_unlock(adapter);
2873
2874 rtnl_lock();
2875 if (adapter->ahw->fw_dump.enable &&
2876 (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2877 QLCDB(adapter, DRV, "Take FW dump\n");
2878 qlcnic_dump_fw(adapter);
2879 adapter->flags |= QLCNIC_FW_HANG;
2880 }
2881 rtnl_unlock();
2882
2883 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2884 if (!adapter->nic_ops->start_firmware(adapter)) {
2885 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2886 adapter->fw_wait_cnt = 0;
2887 return;
2888 }
2889 goto err_ret;
2890 }
2891
2892 qlcnic_api_unlock(adapter);
2893
2894 wait_npar:
2895 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2896 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2897
2898 switch (dev_state) {
2899 case QLCNIC_DEV_READY:
2900 if (!adapter->nic_ops->start_firmware(adapter)) {
2901 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2902 adapter->fw_wait_cnt = 0;
2903 return;
2904 }
2905 case QLCNIC_DEV_FAILED:
2906 break;
2907 default:
2908 qlcnic_schedule_work(adapter,
2909 qlcnic_fwinit_work, FW_POLL_DELAY);
2910 return;
2911 }
2912
2913 err_ret:
2914 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2915 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2916 netif_device_attach(adapter->netdev);
2917 qlcnic_clr_all_drv_state(adapter, 0);
2918 }
2919
2920 static void
2921 qlcnic_detach_work(struct work_struct *work)
2922 {
2923 struct qlcnic_adapter *adapter = container_of(work,
2924 struct qlcnic_adapter, fw_work.work);
2925 struct net_device *netdev = adapter->netdev;
2926 u32 status;
2927
2928 netif_device_detach(netdev);
2929
2930 /* Dont grab rtnl lock during Quiscent mode */
2931 if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2932 if (netif_running(netdev))
2933 __qlcnic_down(adapter, netdev);
2934 } else
2935 qlcnic_down(adapter, netdev);
2936
2937 status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2938
2939 if (status & QLCNIC_RCODE_FATAL_ERROR) {
2940 dev_err(&adapter->pdev->dev,
2941 "Detaching the device: peg halt status1=0x%x\n",
2942 status);
2943
2944 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
2945 dev_err(&adapter->pdev->dev,
2946 "On board active cooling fan failed. "
2947 "Device has been halted.\n");
2948 dev_err(&adapter->pdev->dev,
2949 "Replace the adapter.\n");
2950 }
2951
2952 goto err_ret;
2953 }
2954
2955 if (adapter->temp == QLCNIC_TEMP_PANIC) {
2956 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
2957 adapter->temp);
2958 goto err_ret;
2959 }
2960
2961 /* Dont ack if this instance is the reset owner */
2962 if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2963 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
2964 dev_err(&adapter->pdev->dev,
2965 "Failed to set driver state,"
2966 "detaching the device.\n");
2967 goto err_ret;
2968 }
2969 }
2970
2971 adapter->fw_wait_cnt = 0;
2972
2973 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2974
2975 return;
2976
2977 err_ret:
2978 netif_device_attach(netdev);
2979 qlcnic_clr_all_drv_state(adapter, 1);
2980 }
2981
2982 /*Transit NPAR state to NON Operational */
2983 static void
2984 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2985 {
2986 u32 state;
2987
2988 state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2989 if (state == QLCNIC_DEV_NPAR_NON_OPER)
2990 return;
2991
2992 if (qlcnic_api_lock(adapter))
2993 return;
2994 QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2995 qlcnic_api_unlock(adapter);
2996 }
2997
2998 /*Transit to RESET state from READY state only */
2999 void
3000 qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
3001 {
3002 u32 state, xg_val = 0, gb_val = 0;
3003
3004 qlcnic_xg_set_xg0_mask(xg_val);
3005 qlcnic_xg_set_xg1_mask(xg_val);
3006 QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3007 qlcnic_gb_set_gb0_mask(gb_val);
3008 qlcnic_gb_set_gb1_mask(gb_val);
3009 qlcnic_gb_set_gb2_mask(gb_val);
3010 qlcnic_gb_set_gb3_mask(gb_val);
3011 QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3012 dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3013 " on all ports\n");
3014 adapter->need_fw_reset = 1;
3015 if (qlcnic_api_lock(adapter))
3016 return;
3017
3018 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
3019
3020 if (state == QLCNIC_DEV_READY) {
3021 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
3022 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3023 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3024 qlcnic_idc_debug_info(adapter, 0);
3025 }
3026
3027 QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
3028 qlcnic_api_unlock(adapter);
3029 }
3030
3031 /* Transit to NPAR READY state from NPAR NOT READY state */
3032 static void
3033 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3034 {
3035 if (qlcnic_api_lock(adapter))
3036 return;
3037
3038 QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_OPER);
3039 QLCDB(adapter, DRV, "NPAR operational state set\n");
3040
3041 qlcnic_api_unlock(adapter);
3042 }
3043
3044 static void
3045 qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3046 work_func_t func, int delay)
3047 {
3048 if (test_bit(__QLCNIC_AER, &adapter->state))
3049 return;
3050
3051 INIT_DELAYED_WORK(&adapter->fw_work, func);
3052 queue_delayed_work(qlcnic_wq, &adapter->fw_work,
3053 round_jiffies_relative(delay));
3054 }
3055
3056 static void
3057 qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
3058 {
3059 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
3060 msleep(10);
3061
3062 cancel_delayed_work_sync(&adapter->fw_work);
3063 }
3064
3065 static void
3066 qlcnic_attach_work(struct work_struct *work)
3067 {
3068 struct qlcnic_adapter *adapter = container_of(work,
3069 struct qlcnic_adapter, fw_work.work);
3070 struct net_device *netdev = adapter->netdev;
3071 u32 npar_state;
3072
3073 if (adapter->op_mode != QLCNIC_MGMT_FUNC) {
3074 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3075 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3076 qlcnic_clr_all_drv_state(adapter, 0);
3077 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3078 qlcnic_schedule_work(adapter, qlcnic_attach_work,
3079 FW_POLL_DELAY);
3080 else
3081 goto attach;
3082 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3083 return;
3084 }
3085 attach:
3086 if (netif_running(netdev)) {
3087 if (qlcnic_up(adapter, netdev))
3088 goto done;
3089
3090 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3091 }
3092
3093 done:
3094 netif_device_attach(netdev);
3095 adapter->fw_fail_cnt = 0;
3096 adapter->flags &= ~QLCNIC_FW_HANG;
3097 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3098
3099 if (!qlcnic_clr_drv_state(adapter))
3100 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3101 FW_POLL_DELAY);
3102 }
3103
3104 static int
3105 qlcnic_check_health(struct qlcnic_adapter *adapter)
3106 {
3107 u32 state = 0, heartbeat;
3108 u32 peg_status;
3109
3110 if (qlcnic_check_temp(adapter))
3111 goto detach;
3112
3113 if (adapter->need_fw_reset)
3114 qlcnic_dev_request_reset(adapter);
3115
3116 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
3117 if (state == QLCNIC_DEV_NEED_RESET) {
3118 qlcnic_set_npar_non_operational(adapter);
3119 adapter->need_fw_reset = 1;
3120 } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3121 goto detach;
3122
3123 heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3124 if (heartbeat != adapter->heartbeat) {
3125 adapter->heartbeat = heartbeat;
3126 adapter->fw_fail_cnt = 0;
3127 if (adapter->need_fw_reset)
3128 goto detach;
3129
3130 if (adapter->reset_context && auto_fw_reset) {
3131 qlcnic_reset_hw_context(adapter);
3132 adapter->netdev->trans_start = jiffies;
3133 }
3134
3135 return 0;
3136 }
3137
3138 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3139 return 0;
3140
3141 adapter->flags |= QLCNIC_FW_HANG;
3142
3143 qlcnic_dev_request_reset(adapter);
3144
3145 if (auto_fw_reset)
3146 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3147
3148 dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3149 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3150 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3151 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3152 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3153 "PEG_NET_4_PC: 0x%x\n",
3154 QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1),
3155 QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3156 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c),
3157 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c),
3158 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c),
3159 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c),
3160 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c));
3161 peg_status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3162 if (LSW(MSB(peg_status)) == 0x67)
3163 dev_err(&adapter->pdev->dev,
3164 "Firmware aborted with error code 0x00006700. "
3165 "Device is being reset.\n");
3166 detach:
3167 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3168 QLCNIC_DEV_NEED_RESET;
3169
3170 if (auto_fw_reset &&
3171 !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) {
3172
3173 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3174 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3175 }
3176
3177 return 1;
3178 }
3179
3180 static void
3181 qlcnic_fw_poll_work(struct work_struct *work)
3182 {
3183 struct qlcnic_adapter *adapter = container_of(work,
3184 struct qlcnic_adapter, fw_work.work);
3185
3186 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3187 goto reschedule;
3188
3189
3190 if (qlcnic_check_health(adapter))
3191 return;
3192
3193 if (adapter->fhash.fnum)
3194 qlcnic_prune_lb_filters(adapter);
3195
3196 reschedule:
3197 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3198 }
3199
3200 static int qlcnic_is_first_func(struct pci_dev *pdev)
3201 {
3202 struct pci_dev *oth_pdev;
3203 int val = pdev->devfn;
3204
3205 while (val-- > 0) {
3206 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3207 (pdev->bus), pdev->bus->number,
3208 PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3209 if (!oth_pdev)
3210 continue;
3211
3212 if (oth_pdev->current_state != PCI_D3cold) {
3213 pci_dev_put(oth_pdev);
3214 return 0;
3215 }
3216 pci_dev_put(oth_pdev);
3217 }
3218 return 1;
3219 }
3220
3221 static int qlcnic_attach_func(struct pci_dev *pdev)
3222 {
3223 int err, first_func;
3224 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3225 struct net_device *netdev = adapter->netdev;
3226
3227 pdev->error_state = pci_channel_io_normal;
3228
3229 err = pci_enable_device(pdev);
3230 if (err)
3231 return err;
3232
3233 pci_set_power_state(pdev, PCI_D0);
3234 pci_set_master(pdev);
3235 pci_restore_state(pdev);
3236
3237 first_func = qlcnic_is_first_func(pdev);
3238
3239 if (qlcnic_api_lock(adapter))
3240 return -EINVAL;
3241
3242 if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3243 adapter->need_fw_reset = 1;
3244 set_bit(__QLCNIC_START_FW, &adapter->state);
3245 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
3246 QLCDB(adapter, DRV, "Restarting fw\n");
3247 }
3248 qlcnic_api_unlock(adapter);
3249
3250 err = adapter->nic_ops->start_firmware(adapter);
3251 if (err)
3252 return err;
3253
3254 qlcnic_clr_drv_state(adapter);
3255 qlcnic_setup_intr(adapter);
3256
3257 if (netif_running(netdev)) {
3258 err = qlcnic_attach(adapter);
3259 if (err) {
3260 qlcnic_clr_all_drv_state(adapter, 1);
3261 clear_bit(__QLCNIC_AER, &adapter->state);
3262 netif_device_attach(netdev);
3263 return err;
3264 }
3265
3266 err = qlcnic_up(adapter, netdev);
3267 if (err)
3268 goto done;
3269
3270 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3271 }
3272 done:
3273 netif_device_attach(netdev);
3274 return err;
3275 }
3276
3277 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3278 pci_channel_state_t state)
3279 {
3280 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3281 struct net_device *netdev = adapter->netdev;
3282
3283 if (state == pci_channel_io_perm_failure)
3284 return PCI_ERS_RESULT_DISCONNECT;
3285
3286 if (state == pci_channel_io_normal)
3287 return PCI_ERS_RESULT_RECOVERED;
3288
3289 set_bit(__QLCNIC_AER, &adapter->state);
3290 netif_device_detach(netdev);
3291
3292 cancel_delayed_work_sync(&adapter->fw_work);
3293
3294 if (netif_running(netdev))
3295 qlcnic_down(adapter, netdev);
3296
3297 qlcnic_detach(adapter);
3298 qlcnic_teardown_intr(adapter);
3299
3300 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3301
3302 pci_save_state(pdev);
3303 pci_disable_device(pdev);
3304
3305 return PCI_ERS_RESULT_NEED_RESET;
3306 }
3307
3308 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3309 {
3310 return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3311 PCI_ERS_RESULT_RECOVERED;
3312 }
3313
3314 static void qlcnic_io_resume(struct pci_dev *pdev)
3315 {
3316 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3317
3318 pci_cleanup_aer_uncorrect_error_status(pdev);
3319
3320 if (QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) == QLCNIC_DEV_READY &&
3321 test_and_clear_bit(__QLCNIC_AER, &adapter->state))
3322 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3323 FW_POLL_DELAY);
3324 }
3325
3326 static int
3327 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3328 {
3329 int err;
3330
3331 err = qlcnic_can_start_firmware(adapter);
3332 if (err)
3333 return err;
3334
3335 err = qlcnic_check_npar_opertional(adapter);
3336 if (err)
3337 return err;
3338
3339 err = qlcnic_initialize_nic(adapter);
3340 if (err)
3341 return err;
3342
3343 qlcnic_check_options(adapter);
3344
3345 err = qlcnic_set_eswitch_port_config(adapter);
3346 if (err)
3347 return err;
3348
3349 adapter->need_fw_reset = 0;
3350
3351 return err;
3352 }
3353
3354 static int
3355 qlcnicvf_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
3356 {
3357 return -EOPNOTSUPP;
3358 }
3359
3360 static int
3361 qlcnicvf_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
3362 {
3363 return -EOPNOTSUPP;
3364 }
3365
3366 static ssize_t
3367 qlcnic_store_bridged_mode(struct device *dev,
3368 struct device_attribute *attr, const char *buf, size_t len)
3369 {
3370 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3371 unsigned long new;
3372 int ret = -EINVAL;
3373
3374 if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
3375 goto err_out;
3376
3377 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3378 goto err_out;
3379
3380 if (strict_strtoul(buf, 2, &new))
3381 goto err_out;
3382
3383 if (!adapter->nic_ops->config_bridged_mode(adapter, !!new))
3384 ret = len;
3385
3386 err_out:
3387 return ret;
3388 }
3389
3390 static ssize_t
3391 qlcnic_show_bridged_mode(struct device *dev,
3392 struct device_attribute *attr, char *buf)
3393 {
3394 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3395 int bridged_mode = 0;
3396
3397 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3398 bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
3399
3400 return sprintf(buf, "%d\n", bridged_mode);
3401 }
3402
3403 static struct device_attribute dev_attr_bridged_mode = {
3404 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
3405 .show = qlcnic_show_bridged_mode,
3406 .store = qlcnic_store_bridged_mode,
3407 };
3408
3409 static ssize_t
3410 qlcnic_store_diag_mode(struct device *dev,
3411 struct device_attribute *attr, const char *buf, size_t len)
3412 {
3413 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3414 unsigned long new;
3415
3416 if (strict_strtoul(buf, 2, &new))
3417 return -EINVAL;
3418
3419 if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
3420 adapter->flags ^= QLCNIC_DIAG_ENABLED;
3421
3422 return len;
3423 }
3424
3425 static ssize_t
3426 qlcnic_show_diag_mode(struct device *dev,
3427 struct device_attribute *attr, char *buf)
3428 {
3429 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3430
3431 return sprintf(buf, "%d\n",
3432 !!(adapter->flags & QLCNIC_DIAG_ENABLED));
3433 }
3434
3435 static struct device_attribute dev_attr_diag_mode = {
3436 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
3437 .show = qlcnic_show_diag_mode,
3438 .store = qlcnic_store_diag_mode,
3439 };
3440
3441 int qlcnic_validate_max_rss(struct net_device *netdev, u8 max_hw, u8 val)
3442 {
3443 if (!use_msi_x && !use_msi) {
3444 netdev_info(netdev, "no msix or msi support, hence no rss\n");
3445 return -EINVAL;
3446 }
3447
3448 if ((val > max_hw) || (val < 2) || !is_power_of_2(val)) {
3449 netdev_info(netdev, "rss_ring valid range [2 - %x] in "
3450 " powers of 2\n", max_hw);
3451 return -EINVAL;
3452 }
3453 return 0;
3454
3455 }
3456
3457 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data)
3458 {
3459 struct net_device *netdev = adapter->netdev;
3460 int err = 0;
3461
3462 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
3463 return -EBUSY;
3464
3465 netif_device_detach(netdev);
3466 if (netif_running(netdev))
3467 __qlcnic_down(adapter, netdev);
3468 qlcnic_detach(adapter);
3469 qlcnic_teardown_intr(adapter);
3470
3471 if (qlcnic_enable_msix(adapter, data)) {
3472 netdev_info(netdev, "failed setting max_rss; rss disabled\n");
3473 qlcnic_enable_msi_legacy(adapter);
3474 }
3475
3476 if (netif_running(netdev)) {
3477 err = qlcnic_attach(adapter);
3478 if (err)
3479 goto done;
3480 err = __qlcnic_up(adapter, netdev);
3481 if (err)
3482 goto done;
3483 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3484 }
3485 done:
3486 netif_device_attach(netdev);
3487 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3488 return err;
3489 }
3490
3491 static int
3492 qlcnic_validate_beacon(struct qlcnic_adapter *adapter, u16 beacon, u8 *state,
3493 u8 *rate)
3494 {
3495 *rate = LSB(beacon);
3496 *state = MSB(beacon);
3497
3498 QLCDB(adapter, DRV, "rate %x state %x\n", *rate, *state);
3499
3500 if (!*state) {
3501 *rate = __QLCNIC_MAX_LED_RATE;
3502 return 0;
3503 } else if (*state > __QLCNIC_MAX_LED_STATE)
3504 return -EINVAL;
3505
3506 if ((!*rate) || (*rate > __QLCNIC_MAX_LED_RATE))
3507 return -EINVAL;
3508
3509 return 0;
3510 }
3511
3512 static ssize_t
3513 qlcnic_store_beacon(struct device *dev,
3514 struct device_attribute *attr, const char *buf, size_t len)
3515 {
3516 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3517 int max_sds_rings = adapter->max_sds_rings;
3518 u16 beacon;
3519 u8 b_state, b_rate;
3520 int err;
3521
3522 if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
3523 dev_warn(dev, "LED test not supported for non "
3524 "privilege function\n");
3525 return -EOPNOTSUPP;
3526 }
3527
3528 if (len != sizeof(u16))
3529 return QL_STATUS_INVALID_PARAM;
3530
3531 memcpy(&beacon, buf, sizeof(u16));
3532 err = qlcnic_validate_beacon(adapter, beacon, &b_state, &b_rate);
3533 if (err)
3534 return err;
3535
3536 if (adapter->ahw->beacon_state == b_state)
3537 return len;
3538
3539 rtnl_lock();
3540
3541 if (!adapter->ahw->beacon_state)
3542 if (test_and_set_bit(__QLCNIC_LED_ENABLE, &adapter->state)) {
3543 rtnl_unlock();
3544 return -EBUSY;
3545 }
3546
3547 if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
3548 err = -EIO;
3549 goto out;
3550 }
3551
3552 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
3553 err = qlcnic_diag_alloc_res(adapter->netdev, QLCNIC_LED_TEST);
3554 if (err)
3555 goto out;
3556 set_bit(__QLCNIC_DIAG_RES_ALLOC, &adapter->state);
3557 }
3558
3559 err = qlcnic_config_led(adapter, b_state, b_rate);
3560
3561 if (!err) {
3562 err = len;
3563 adapter->ahw->beacon_state = b_state;
3564 }
3565
3566 if (test_and_clear_bit(__QLCNIC_DIAG_RES_ALLOC, &adapter->state))
3567 qlcnic_diag_free_res(adapter->netdev, max_sds_rings);
3568
3569 out:
3570 if (!adapter->ahw->beacon_state)
3571 clear_bit(__QLCNIC_LED_ENABLE, &adapter->state);
3572 rtnl_unlock();
3573
3574 return err;
3575 }
3576
3577 static ssize_t
3578 qlcnic_show_beacon(struct device *dev,
3579 struct device_attribute *attr, char *buf)
3580 {
3581 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3582
3583 return sprintf(buf, "%d\n", adapter->ahw->beacon_state);
3584 }
3585
3586 static struct device_attribute dev_attr_beacon = {
3587 .attr = {.name = "beacon", .mode = (S_IRUGO | S_IWUSR)},
3588 .show = qlcnic_show_beacon,
3589 .store = qlcnic_store_beacon,
3590 };
3591
3592 static int
3593 qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
3594 loff_t offset, size_t size)
3595 {
3596 size_t crb_size = 4;
3597
3598 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3599 return -EIO;
3600
3601 if (offset < QLCNIC_PCI_CRBSPACE) {
3602 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM,
3603 QLCNIC_PCI_CAMQM_END))
3604 crb_size = 8;
3605 else
3606 return -EINVAL;
3607 }
3608
3609 if ((size != crb_size) || (offset & (crb_size-1)))
3610 return -EINVAL;
3611
3612 return 0;
3613 }
3614
3615 static ssize_t
3616 qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj,
3617 struct bin_attribute *attr,
3618 char *buf, loff_t offset, size_t size)
3619 {
3620 struct device *dev = container_of(kobj, struct device, kobj);
3621 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3622 u32 data;
3623 u64 qmdata;
3624 int ret;
3625
3626 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3627 if (ret != 0)
3628 return ret;
3629
3630 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3631 qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
3632 memcpy(buf, &qmdata, size);
3633 } else {
3634 data = QLCRD32(adapter, offset);
3635 memcpy(buf, &data, size);
3636 }
3637 return size;
3638 }
3639
3640 static ssize_t
3641 qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj,
3642 struct bin_attribute *attr,
3643 char *buf, loff_t offset, size_t size)
3644 {
3645 struct device *dev = container_of(kobj, struct device, kobj);
3646 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3647 u32 data;
3648 u64 qmdata;
3649 int ret;
3650
3651 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3652 if (ret != 0)
3653 return ret;
3654
3655 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3656 memcpy(&qmdata, buf, size);
3657 qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
3658 } else {
3659 memcpy(&data, buf, size);
3660 QLCWR32(adapter, offset, data);
3661 }
3662 return size;
3663 }
3664
3665 static int
3666 qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
3667 loff_t offset, size_t size)
3668 {
3669 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3670 return -EIO;
3671
3672 if ((size != 8) || (offset & 0x7))
3673 return -EIO;
3674
3675 return 0;
3676 }
3677
3678 static ssize_t
3679 qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj,
3680 struct bin_attribute *attr,
3681 char *buf, loff_t offset, size_t size)
3682 {
3683 struct device *dev = container_of(kobj, struct device, kobj);
3684 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3685 u64 data;
3686 int ret;
3687
3688 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3689 if (ret != 0)
3690 return ret;
3691
3692 if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
3693 return -EIO;
3694
3695 memcpy(buf, &data, size);
3696
3697 return size;
3698 }
3699
3700 static ssize_t
3701 qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj,
3702 struct bin_attribute *attr,
3703 char *buf, loff_t offset, size_t size)
3704 {
3705 struct device *dev = container_of(kobj, struct device, kobj);
3706 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3707 u64 data;
3708 int ret;
3709
3710 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3711 if (ret != 0)
3712 return ret;
3713
3714 memcpy(&data, buf, size);
3715
3716 if (qlcnic_pci_mem_write_2M(adapter, offset, data))
3717 return -EIO;
3718
3719 return size;
3720 }
3721
3722 static struct bin_attribute bin_attr_crb = {
3723 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
3724 .size = 0,
3725 .read = qlcnic_sysfs_read_crb,
3726 .write = qlcnic_sysfs_write_crb,
3727 };
3728
3729 static struct bin_attribute bin_attr_mem = {
3730 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
3731 .size = 0,
3732 .read = qlcnic_sysfs_read_mem,
3733 .write = qlcnic_sysfs_write_mem,
3734 };
3735
3736 static int
3737 validate_pm_config(struct qlcnic_adapter *adapter,
3738 struct qlcnic_pm_func_cfg *pm_cfg, int count)
3739 {
3740
3741 u8 src_pci_func, s_esw_id, d_esw_id;
3742 u8 dest_pci_func;
3743 int i;
3744
3745 for (i = 0; i < count; i++) {
3746 src_pci_func = pm_cfg[i].pci_func;
3747 dest_pci_func = pm_cfg[i].dest_npar;
3748 if (src_pci_func >= QLCNIC_MAX_PCI_FUNC
3749 || dest_pci_func >= QLCNIC_MAX_PCI_FUNC)
3750 return QL_STATUS_INVALID_PARAM;
3751
3752 if (adapter->npars[src_pci_func].type != QLCNIC_TYPE_NIC)
3753 return QL_STATUS_INVALID_PARAM;
3754
3755 if (adapter->npars[dest_pci_func].type != QLCNIC_TYPE_NIC)
3756 return QL_STATUS_INVALID_PARAM;
3757
3758 s_esw_id = adapter->npars[src_pci_func].phy_port;
3759 d_esw_id = adapter->npars[dest_pci_func].phy_port;
3760
3761 if (s_esw_id != d_esw_id)
3762 return QL_STATUS_INVALID_PARAM;
3763
3764 }
3765 return 0;
3766
3767 }
3768
3769 static ssize_t
3770 qlcnic_sysfs_write_pm_config(struct file *filp, struct kobject *kobj,
3771 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3772 {
3773 struct device *dev = container_of(kobj, struct device, kobj);
3774 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3775 struct qlcnic_pm_func_cfg *pm_cfg;
3776 u32 id, action, pci_func;
3777 int count, rem, i, ret;
3778
3779 count = size / sizeof(struct qlcnic_pm_func_cfg);
3780 rem = size % sizeof(struct qlcnic_pm_func_cfg);
3781 if (rem)
3782 return QL_STATUS_INVALID_PARAM;
3783
3784 pm_cfg = (struct qlcnic_pm_func_cfg *) buf;
3785
3786 ret = validate_pm_config(adapter, pm_cfg, count);
3787 if (ret)
3788 return ret;
3789 for (i = 0; i < count; i++) {
3790 pci_func = pm_cfg[i].pci_func;
3791 action = !!pm_cfg[i].action;
3792 id = adapter->npars[pci_func].phy_port;
3793 ret = qlcnic_config_port_mirroring(adapter, id,
3794 action, pci_func);
3795 if (ret)
3796 return ret;
3797 }
3798
3799 for (i = 0; i < count; i++) {
3800 pci_func = pm_cfg[i].pci_func;
3801 id = adapter->npars[pci_func].phy_port;
3802 adapter->npars[pci_func].enable_pm = !!pm_cfg[i].action;
3803 adapter->npars[pci_func].dest_npar = id;
3804 }
3805 return size;
3806 }
3807
3808 static ssize_t
3809 qlcnic_sysfs_read_pm_config(struct file *filp, struct kobject *kobj,
3810 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3811 {
3812 struct device *dev = container_of(kobj, struct device, kobj);
3813 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3814 struct qlcnic_pm_func_cfg pm_cfg[QLCNIC_MAX_PCI_FUNC];
3815 int i;
3816
3817 if (size != sizeof(pm_cfg))
3818 return QL_STATUS_INVALID_PARAM;
3819
3820 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3821 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3822 continue;
3823 pm_cfg[i].action = adapter->npars[i].enable_pm;
3824 pm_cfg[i].dest_npar = 0;
3825 pm_cfg[i].pci_func = i;
3826 }
3827 memcpy(buf, &pm_cfg, size);
3828
3829 return size;
3830 }
3831
3832 static int
3833 validate_esw_config(struct qlcnic_adapter *adapter,
3834 struct qlcnic_esw_func_cfg *esw_cfg, int count)
3835 {
3836 u32 op_mode;
3837 u8 pci_func;
3838 int i;
3839
3840 op_mode = readl(adapter->ahw->pci_base0 + QLCNIC_DRV_OP_MODE);
3841
3842 for (i = 0; i < count; i++) {
3843 pci_func = esw_cfg[i].pci_func;
3844 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3845 return QL_STATUS_INVALID_PARAM;
3846
3847 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3848 if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3849 return QL_STATUS_INVALID_PARAM;
3850
3851 switch (esw_cfg[i].op_mode) {
3852 case QLCNIC_PORT_DEFAULTS:
3853 if (QLC_DEV_GET_DRV(op_mode, pci_func) !=
3854 QLCNIC_NON_PRIV_FUNC) {
3855 if (esw_cfg[i].mac_anti_spoof != 0)
3856 return QL_STATUS_INVALID_PARAM;
3857 if (esw_cfg[i].mac_override != 1)
3858 return QL_STATUS_INVALID_PARAM;
3859 if (esw_cfg[i].promisc_mode != 1)
3860 return QL_STATUS_INVALID_PARAM;
3861 }
3862 break;
3863 case QLCNIC_ADD_VLAN:
3864 if (!IS_VALID_VLAN(esw_cfg[i].vlan_id))
3865 return QL_STATUS_INVALID_PARAM;
3866 if (!esw_cfg[i].op_type)
3867 return QL_STATUS_INVALID_PARAM;
3868 break;
3869 case QLCNIC_DEL_VLAN:
3870 if (!esw_cfg[i].op_type)
3871 return QL_STATUS_INVALID_PARAM;
3872 break;
3873 default:
3874 return QL_STATUS_INVALID_PARAM;
3875 }
3876 }
3877 return 0;
3878 }
3879
3880 static ssize_t
3881 qlcnic_sysfs_write_esw_config(struct file *file, struct kobject *kobj,
3882 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3883 {
3884 struct device *dev = container_of(kobj, struct device, kobj);
3885 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3886 struct qlcnic_esw_func_cfg *esw_cfg;
3887 struct qlcnic_npar_info *npar;
3888 int count, rem, i, ret;
3889 u8 pci_func, op_mode = 0;
3890
3891 count = size / sizeof(struct qlcnic_esw_func_cfg);
3892 rem = size % sizeof(struct qlcnic_esw_func_cfg);
3893 if (rem)
3894 return QL_STATUS_INVALID_PARAM;
3895
3896 esw_cfg = (struct qlcnic_esw_func_cfg *) buf;
3897 ret = validate_esw_config(adapter, esw_cfg, count);
3898 if (ret)
3899 return ret;
3900
3901 for (i = 0; i < count; i++) {
3902 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3903 if (qlcnic_config_switch_port(adapter, &esw_cfg[i]))
3904 return QL_STATUS_INVALID_PARAM;
3905
3906 if (adapter->ahw->pci_func != esw_cfg[i].pci_func)
3907 continue;
3908
3909 op_mode = esw_cfg[i].op_mode;
3910 qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]);
3911 esw_cfg[i].op_mode = op_mode;
3912 esw_cfg[i].pci_func = adapter->ahw->pci_func;
3913
3914 switch (esw_cfg[i].op_mode) {
3915 case QLCNIC_PORT_DEFAULTS:
3916 qlcnic_set_eswitch_port_features(adapter, &esw_cfg[i]);
3917 break;
3918 case QLCNIC_ADD_VLAN:
3919 qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3920 break;
3921 case QLCNIC_DEL_VLAN:
3922 esw_cfg[i].vlan_id = 0;
3923 qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3924 break;
3925 }
3926 }
3927
3928 if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3929 goto out;
3930
3931 for (i = 0; i < count; i++) {
3932 pci_func = esw_cfg[i].pci_func;
3933 npar = &adapter->npars[pci_func];
3934 switch (esw_cfg[i].op_mode) {
3935 case QLCNIC_PORT_DEFAULTS:
3936 npar->promisc_mode = esw_cfg[i].promisc_mode;
3937 npar->mac_override = esw_cfg[i].mac_override;
3938 npar->offload_flags = esw_cfg[i].offload_flags;
3939 npar->mac_anti_spoof = esw_cfg[i].mac_anti_spoof;
3940 npar->discard_tagged = esw_cfg[i].discard_tagged;
3941 break;
3942 case QLCNIC_ADD_VLAN:
3943 npar->pvid = esw_cfg[i].vlan_id;
3944 break;
3945 case QLCNIC_DEL_VLAN:
3946 npar->pvid = 0;
3947 break;
3948 }
3949 }
3950 out:
3951 return size;
3952 }
3953
3954 static ssize_t
3955 qlcnic_sysfs_read_esw_config(struct file *file, struct kobject *kobj,
3956 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3957 {
3958 struct device *dev = container_of(kobj, struct device, kobj);
3959 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3960 struct qlcnic_esw_func_cfg esw_cfg[QLCNIC_MAX_PCI_FUNC];
3961 u8 i;
3962
3963 if (size != sizeof(esw_cfg))
3964 return QL_STATUS_INVALID_PARAM;
3965
3966 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3967 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3968 continue;
3969 esw_cfg[i].pci_func = i;
3970 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]))
3971 return QL_STATUS_INVALID_PARAM;
3972 }
3973 memcpy(buf, &esw_cfg, size);
3974
3975 return size;
3976 }
3977
3978 static int
3979 validate_npar_config(struct qlcnic_adapter *adapter,
3980 struct qlcnic_npar_func_cfg *np_cfg, int count)
3981 {
3982 u8 pci_func, i;
3983
3984 for (i = 0; i < count; i++) {
3985 pci_func = np_cfg[i].pci_func;
3986 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3987 return QL_STATUS_INVALID_PARAM;
3988
3989 if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3990 return QL_STATUS_INVALID_PARAM;
3991
3992 if (!IS_VALID_BW(np_cfg[i].min_bw) ||
3993 !IS_VALID_BW(np_cfg[i].max_bw))
3994 return QL_STATUS_INVALID_PARAM;
3995 }
3996 return 0;
3997 }
3998
3999 static ssize_t
4000 qlcnic_sysfs_write_npar_config(struct file *file, struct kobject *kobj,
4001 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
4002 {
4003 struct device *dev = container_of(kobj, struct device, kobj);
4004 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
4005 struct qlcnic_info nic_info;
4006 struct qlcnic_npar_func_cfg *np_cfg;
4007 int i, count, rem, ret;
4008 u8 pci_func;
4009
4010 count = size / sizeof(struct qlcnic_npar_func_cfg);
4011 rem = size % sizeof(struct qlcnic_npar_func_cfg);
4012 if (rem)
4013 return QL_STATUS_INVALID_PARAM;
4014
4015 np_cfg = (struct qlcnic_npar_func_cfg *) buf;
4016 ret = validate_npar_config(adapter, np_cfg, count);
4017 if (ret)
4018 return ret;
4019
4020 for (i = 0; i < count ; i++) {
4021 pci_func = np_cfg[i].pci_func;
4022 ret = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
4023 if (ret)
4024 return ret;
4025 nic_info.pci_func = pci_func;
4026 nic_info.min_tx_bw = np_cfg[i].min_bw;
4027 nic_info.max_tx_bw = np_cfg[i].max_bw;
4028 ret = qlcnic_set_nic_info(adapter, &nic_info);
4029 if (ret)
4030 return ret;
4031 adapter->npars[i].min_bw = nic_info.min_tx_bw;
4032 adapter->npars[i].max_bw = nic_info.max_tx_bw;
4033 }
4034
4035 return size;
4036
4037 }
4038 static ssize_t
4039 qlcnic_sysfs_read_npar_config(struct file *file, struct kobject *kobj,
4040 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
4041 {
4042 struct device *dev = container_of(kobj, struct device, kobj);
4043 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
4044 struct qlcnic_info nic_info;
4045 struct qlcnic_npar_func_cfg np_cfg[QLCNIC_MAX_PCI_FUNC];
4046 int i, ret;
4047
4048 if (size != sizeof(np_cfg))
4049 return QL_STATUS_INVALID_PARAM;
4050
4051 for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
4052 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
4053 continue;
4054 ret = qlcnic_get_nic_info(adapter, &nic_info, i);
4055 if (ret)
4056 return ret;
4057
4058 np_cfg[i].pci_func = i;
4059 np_cfg[i].op_mode = (u8)nic_info.op_mode;
4060 np_cfg[i].port_num = nic_info.phys_port;
4061 np_cfg[i].fw_capab = nic_info.capabilities;
4062 np_cfg[i].min_bw = nic_info.min_tx_bw ;
4063 np_cfg[i].max_bw = nic_info.max_tx_bw;
4064 np_cfg[i].max_tx_queues = nic_info.max_tx_ques;
4065 np_cfg[i].max_rx_queues = nic_info.max_rx_ques;
4066 }
4067 memcpy(buf, &np_cfg, size);
4068 return size;
4069 }
4070
4071 static ssize_t
4072 qlcnic_sysfs_get_port_stats(struct file *file, struct kobject *kobj,
4073 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
4074 {
4075 struct device *dev = container_of(kobj, struct device, kobj);
4076 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
4077 struct qlcnic_esw_statistics port_stats;
4078 int ret;
4079
4080 if (size != sizeof(struct qlcnic_esw_statistics))
4081 return QL_STATUS_INVALID_PARAM;
4082
4083 if (offset >= QLCNIC_MAX_PCI_FUNC)
4084 return QL_STATUS_INVALID_PARAM;
4085
4086 memset(&port_stats, 0, size);
4087 ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
4088 &port_stats.rx);
4089 if (ret)
4090 return ret;
4091
4092 ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
4093 &port_stats.tx);
4094 if (ret)
4095 return ret;
4096
4097 memcpy(buf, &port_stats, size);
4098 return size;
4099 }
4100
4101 static ssize_t
4102 qlcnic_sysfs_get_esw_stats(struct file *file, struct kobject *kobj,
4103 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
4104 {
4105 struct device *dev = container_of(kobj, struct device, kobj);
4106 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
4107 struct qlcnic_esw_statistics esw_stats;
4108 int ret;
4109
4110 if (size != sizeof(struct qlcnic_esw_statistics))
4111 return QL_STATUS_INVALID_PARAM;
4112
4113 if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
4114 return QL_STATUS_INVALID_PARAM;
4115
4116 memset(&esw_stats, 0, size);
4117 ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
4118 &esw_stats.rx);
4119 if (ret)
4120 return ret;
4121
4122 ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
4123 &esw_stats.tx);
4124 if (ret)
4125 return ret;
4126
4127 memcpy(buf, &esw_stats, size);
4128 return size;
4129 }
4130
4131 static ssize_t
4132 qlcnic_sysfs_clear_esw_stats(struct file *file, struct kobject *kobj,
4133 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
4134 {
4135 struct device *dev = container_of(kobj, struct device, kobj);
4136 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
4137 int ret;
4138
4139 if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
4140 return QL_STATUS_INVALID_PARAM;
4141
4142 ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
4143 QLCNIC_QUERY_RX_COUNTER);
4144 if (ret)
4145 return ret;
4146
4147 ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
4148 QLCNIC_QUERY_TX_COUNTER);
4149 if (ret)
4150 return ret;
4151
4152 return size;
4153 }
4154
4155 static ssize_t
4156 qlcnic_sysfs_clear_port_stats(struct file *file, struct kobject *kobj,
4157 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
4158 {
4159
4160 struct device *dev = container_of(kobj, struct device, kobj);
4161 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
4162 int ret;
4163
4164 if (offset >= QLCNIC_MAX_PCI_FUNC)
4165 return QL_STATUS_INVALID_PARAM;
4166
4167 ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
4168 QLCNIC_QUERY_RX_COUNTER);
4169 if (ret)
4170 return ret;
4171
4172 ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
4173 QLCNIC_QUERY_TX_COUNTER);
4174 if (ret)
4175 return ret;
4176
4177 return size;
4178 }
4179
4180 static ssize_t
4181 qlcnic_sysfs_read_pci_config(struct file *file, struct kobject *kobj,
4182 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
4183 {
4184 struct device *dev = container_of(kobj, struct device, kobj);
4185 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
4186 struct qlcnic_pci_func_cfg pci_cfg[QLCNIC_MAX_PCI_FUNC];
4187 struct qlcnic_pci_info *pci_info;
4188 int i, ret;
4189
4190 if (size != sizeof(pci_cfg))
4191 return QL_STATUS_INVALID_PARAM;
4192
4193 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
4194 if (!pci_info)
4195 return -ENOMEM;
4196
4197 ret = qlcnic_get_pci_info(adapter, pci_info);
4198 if (ret) {
4199 kfree(pci_info);
4200 return ret;
4201 }
4202
4203 for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
4204 pci_cfg[i].pci_func = pci_info[i].id;
4205 pci_cfg[i].func_type = pci_info[i].type;
4206 pci_cfg[i].port_num = pci_info[i].default_port;
4207 pci_cfg[i].min_bw = pci_info[i].tx_min_bw;
4208 pci_cfg[i].max_bw = pci_info[i].tx_max_bw;
4209 memcpy(&pci_cfg[i].def_mac_addr, &pci_info[i].mac, ETH_ALEN);
4210 }
4211 memcpy(buf, &pci_cfg, size);
4212 kfree(pci_info);
4213 return size;
4214 }
4215 static struct bin_attribute bin_attr_npar_config = {
4216 .attr = {.name = "npar_config", .mode = (S_IRUGO | S_IWUSR)},
4217 .size = 0,
4218 .read = qlcnic_sysfs_read_npar_config,
4219 .write = qlcnic_sysfs_write_npar_config,
4220 };
4221
4222 static struct bin_attribute bin_attr_pci_config = {
4223 .attr = {.name = "pci_config", .mode = (S_IRUGO | S_IWUSR)},
4224 .size = 0,
4225 .read = qlcnic_sysfs_read_pci_config,
4226 .write = NULL,
4227 };
4228
4229 static struct bin_attribute bin_attr_port_stats = {
4230 .attr = {.name = "port_stats", .mode = (S_IRUGO | S_IWUSR)},
4231 .size = 0,
4232 .read = qlcnic_sysfs_get_port_stats,
4233 .write = qlcnic_sysfs_clear_port_stats,
4234 };
4235
4236 static struct bin_attribute bin_attr_esw_stats = {
4237 .attr = {.name = "esw_stats", .mode = (S_IRUGO | S_IWUSR)},
4238 .size = 0,
4239 .read = qlcnic_sysfs_get_esw_stats,
4240 .write = qlcnic_sysfs_clear_esw_stats,
4241 };
4242
4243 static struct bin_attribute bin_attr_esw_config = {
4244 .attr = {.name = "esw_config", .mode = (S_IRUGO | S_IWUSR)},
4245 .size = 0,
4246 .read = qlcnic_sysfs_read_esw_config,
4247 .write = qlcnic_sysfs_write_esw_config,
4248 };
4249
4250 static struct bin_attribute bin_attr_pm_config = {
4251 .attr = {.name = "pm_config", .mode = (S_IRUGO | S_IWUSR)},
4252 .size = 0,
4253 .read = qlcnic_sysfs_read_pm_config,
4254 .write = qlcnic_sysfs_write_pm_config,
4255 };
4256
4257 static void
4258 qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
4259 {
4260 struct device *dev = &adapter->pdev->dev;
4261
4262 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
4263 if (device_create_file(dev, &dev_attr_bridged_mode))
4264 dev_warn(dev,
4265 "failed to create bridged_mode sysfs entry\n");
4266 }
4267
4268 static void
4269 qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
4270 {
4271 struct device *dev = &adapter->pdev->dev;
4272
4273 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
4274 device_remove_file(dev, &dev_attr_bridged_mode);
4275 }
4276
4277 static void
4278 qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
4279 {
4280 struct device *dev = &adapter->pdev->dev;
4281
4282 if (device_create_bin_file(dev, &bin_attr_port_stats))
4283 dev_info(dev, "failed to create port stats sysfs entry");
4284
4285 if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
4286 return;
4287 if (device_create_file(dev, &dev_attr_diag_mode))
4288 dev_info(dev, "failed to create diag_mode sysfs entry\n");
4289 if (device_create_file(dev, &dev_attr_beacon))
4290 dev_info(dev, "failed to create beacon sysfs entry");
4291 if (device_create_bin_file(dev, &bin_attr_crb))
4292 dev_info(dev, "failed to create crb sysfs entry\n");
4293 if (device_create_bin_file(dev, &bin_attr_mem))
4294 dev_info(dev, "failed to create mem sysfs entry\n");
4295 if (device_create_bin_file(dev, &bin_attr_pci_config))
4296 dev_info(dev, "failed to create pci config sysfs entry");
4297 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
4298 return;
4299 if (device_create_bin_file(dev, &bin_attr_esw_config))
4300 dev_info(dev, "failed to create esw config sysfs entry");
4301 if (adapter->op_mode != QLCNIC_MGMT_FUNC)
4302 return;
4303 if (device_create_bin_file(dev, &bin_attr_npar_config))
4304 dev_info(dev, "failed to create npar config sysfs entry");
4305 if (device_create_bin_file(dev, &bin_attr_pm_config))
4306 dev_info(dev, "failed to create pm config sysfs entry");
4307 if (device_create_bin_file(dev, &bin_attr_esw_stats))
4308 dev_info(dev, "failed to create eswitch stats sysfs entry");
4309 }
4310
4311 static void
4312 qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
4313 {
4314 struct device *dev = &adapter->pdev->dev;
4315
4316 device_remove_bin_file(dev, &bin_attr_port_stats);
4317
4318 if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
4319 return;
4320 device_remove_file(dev, &dev_attr_diag_mode);
4321 device_remove_file(dev, &dev_attr_beacon);
4322 device_remove_bin_file(dev, &bin_attr_crb);
4323 device_remove_bin_file(dev, &bin_attr_mem);
4324 device_remove_bin_file(dev, &bin_attr_pci_config);
4325 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
4326 return;
4327 device_remove_bin_file(dev, &bin_attr_esw_config);
4328 if (adapter->op_mode != QLCNIC_MGMT_FUNC)
4329 return;
4330 device_remove_bin_file(dev, &bin_attr_npar_config);
4331 device_remove_bin_file(dev, &bin_attr_pm_config);
4332 device_remove_bin_file(dev, &bin_attr_esw_stats);
4333 }
4334
4335 #ifdef CONFIG_INET
4336
4337 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4338
4339 static void
4340 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4341 struct net_device *dev, unsigned long event)
4342 {
4343 struct in_device *indev;
4344
4345 indev = in_dev_get(dev);
4346 if (!indev)
4347 return;
4348
4349 for_ifa(indev) {
4350 switch (event) {
4351 case NETDEV_UP:
4352 qlcnic_config_ipaddr(adapter,
4353 ifa->ifa_address, QLCNIC_IP_UP);
4354 break;
4355 case NETDEV_DOWN:
4356 qlcnic_config_ipaddr(adapter,
4357 ifa->ifa_address, QLCNIC_IP_DOWN);
4358 break;
4359 default:
4360 break;
4361 }
4362 } endfor_ifa(indev);
4363
4364 in_dev_put(indev);
4365 }
4366
4367 static void
4368 qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4369 {
4370 struct qlcnic_adapter *adapter = netdev_priv(netdev);
4371 struct net_device *dev;
4372 u16 vid;
4373
4374 qlcnic_config_indev_addr(adapter, netdev, event);
4375
4376 for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4377 dev = __vlan_find_dev_deep(netdev, vid);
4378 if (!dev)
4379 continue;
4380 qlcnic_config_indev_addr(adapter, dev, event);
4381 }
4382 }
4383
4384 static int qlcnic_netdev_event(struct notifier_block *this,
4385 unsigned long event, void *ptr)
4386 {
4387 struct qlcnic_adapter *adapter;
4388 struct net_device *dev = (struct net_device *)ptr;
4389
4390 recheck:
4391 if (dev == NULL)
4392 goto done;
4393
4394 if (dev->priv_flags & IFF_802_1Q_VLAN) {
4395 dev = vlan_dev_real_dev(dev);
4396 goto recheck;
4397 }
4398
4399 if (!is_qlcnic_netdev(dev))
4400 goto done;
4401
4402 adapter = netdev_priv(dev);
4403
4404 if (!adapter)
4405 goto done;
4406
4407 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4408 goto done;
4409
4410 qlcnic_config_indev_addr(adapter, dev, event);
4411 done:
4412 return NOTIFY_DONE;
4413 }
4414
4415 static int
4416 qlcnic_inetaddr_event(struct notifier_block *this,
4417 unsigned long event, void *ptr)
4418 {
4419 struct qlcnic_adapter *adapter;
4420 struct net_device *dev;
4421
4422 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4423
4424 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4425
4426 recheck:
4427 if (dev == NULL)
4428 goto done;
4429
4430 if (dev->priv_flags & IFF_802_1Q_VLAN) {
4431 dev = vlan_dev_real_dev(dev);
4432 goto recheck;
4433 }
4434
4435 if (!is_qlcnic_netdev(dev))
4436 goto done;
4437
4438 adapter = netdev_priv(dev);
4439
4440 if (!adapter)
4441 goto done;
4442
4443 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4444 goto done;
4445
4446 switch (event) {
4447 case NETDEV_UP:
4448 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4449 break;
4450 case NETDEV_DOWN:
4451 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4452 break;
4453 default:
4454 break;
4455 }
4456
4457 done:
4458 return NOTIFY_DONE;
4459 }
4460
4461 static struct notifier_block qlcnic_netdev_cb = {
4462 .notifier_call = qlcnic_netdev_event,
4463 };
4464
4465 static struct notifier_block qlcnic_inetaddr_cb = {
4466 .notifier_call = qlcnic_inetaddr_event,
4467 };
4468 #else
4469 static void
4470 qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4471 { }
4472 #endif
4473 static struct pci_error_handlers qlcnic_err_handler = {
4474 .error_detected = qlcnic_io_error_detected,
4475 .slot_reset = qlcnic_io_slot_reset,
4476 .resume = qlcnic_io_resume,
4477 };
4478
4479 static struct pci_driver qlcnic_driver = {
4480 .name = qlcnic_driver_name,
4481 .id_table = qlcnic_pci_tbl,
4482 .probe = qlcnic_probe,
4483 .remove = __devexit_p(qlcnic_remove),
4484 #ifdef CONFIG_PM
4485 .suspend = qlcnic_suspend,
4486 .resume = qlcnic_resume,
4487 #endif
4488 .shutdown = qlcnic_shutdown,
4489 .err_handler = &qlcnic_err_handler
4490
4491 };
4492
4493 static int __init qlcnic_init_module(void)
4494 {
4495 int ret;
4496
4497 printk(KERN_INFO "%s\n", qlcnic_driver_string);
4498
4499 qlcnic_wq = create_singlethread_workqueue("qlcnic");
4500 if (qlcnic_wq == NULL) {
4501 printk(KERN_ERR "qlcnic: cannot create workqueue\n");
4502 return -ENOMEM;
4503 }
4504
4505 #ifdef CONFIG_INET
4506 register_netdevice_notifier(&qlcnic_netdev_cb);
4507 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4508 #endif
4509
4510 ret = pci_register_driver(&qlcnic_driver);
4511 if (ret) {
4512 #ifdef CONFIG_INET
4513 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4514 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4515 #endif
4516 destroy_workqueue(qlcnic_wq);
4517 }
4518
4519 return ret;
4520 }
4521
4522 module_init(qlcnic_init_module);
4523
4524 static void __exit qlcnic_exit_module(void)
4525 {
4526
4527 pci_unregister_driver(&qlcnic_driver);
4528
4529 #ifdef CONFIG_INET
4530 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4531 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4532 #endif
4533 destroy_workqueue(qlcnic_wq);
4534 }
4535
4536 module_exit(qlcnic_exit_module);
Linux kernel - Deliverables
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