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ip6ip6: autoload ip6 tunnel
[deliverable/linux.git] / drivers / net / 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 <linux/if_vlan.h>
17 #include <net/ip.h>
18 #include <linux/ipv6.h>
19 #include <linux/inetdevice.h>
20 #include <linux/sysfs.h>
21 #include <linux/aer.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 = AUTO_FW_RESET_ENABLED;
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_alloc_lb_filters_mem(struct qlcnic_adapter *adapter);
94 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
95 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
96 static int qlcnicvf_config_led(struct qlcnic_adapter *, u32, u32);
97 static int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *, u32);
98 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
99 static void qlcnic_set_netdev_features(struct qlcnic_adapter *,
100 struct qlcnic_esw_func_cfg *);
101 /* PCI Device ID Table */
102 #define ENTRY(device) \
103 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
104 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
105
106 #define PCI_DEVICE_ID_QLOGIC_QLE824X 0x8020
107
108 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
109 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
110 {0,}
111 };
112
113 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
114
115
116 void
117 qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
118 struct qlcnic_host_tx_ring *tx_ring)
119 {
120 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
121 }
122
123 static const u32 msi_tgt_status[8] = {
124 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
125 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
126 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
127 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
128 };
129
130 static const
131 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
132
133 static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring)
134 {
135 writel(0, sds_ring->crb_intr_mask);
136 }
137
138 static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
139 {
140 struct qlcnic_adapter *adapter = sds_ring->adapter;
141
142 writel(0x1, sds_ring->crb_intr_mask);
143
144 if (!QLCNIC_IS_MSI_FAMILY(adapter))
145 writel(0xfbff, adapter->tgt_mask_reg);
146 }
147
148 static int
149 qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
150 {
151 int size = sizeof(struct qlcnic_host_sds_ring) * count;
152
153 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
154
155 return recv_ctx->sds_rings == NULL;
156 }
157
158 static void
159 qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
160 {
161 if (recv_ctx->sds_rings != NULL)
162 kfree(recv_ctx->sds_rings);
163
164 recv_ctx->sds_rings = NULL;
165 }
166
167 static int
168 qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev)
169 {
170 int ring;
171 struct qlcnic_host_sds_ring *sds_ring;
172 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
173
174 if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
175 return -ENOMEM;
176
177 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
178 sds_ring = &recv_ctx->sds_rings[ring];
179
180 if (ring == adapter->max_sds_rings - 1)
181 netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll,
182 QLCNIC_NETDEV_WEIGHT/adapter->max_sds_rings);
183 else
184 netif_napi_add(netdev, &sds_ring->napi,
185 qlcnic_rx_poll, QLCNIC_NETDEV_WEIGHT*2);
186 }
187
188 return 0;
189 }
190
191 static void
192 qlcnic_napi_del(struct qlcnic_adapter *adapter)
193 {
194 int ring;
195 struct qlcnic_host_sds_ring *sds_ring;
196 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
197
198 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
199 sds_ring = &recv_ctx->sds_rings[ring];
200 netif_napi_del(&sds_ring->napi);
201 }
202
203 qlcnic_free_sds_rings(&adapter->recv_ctx);
204 }
205
206 static void
207 qlcnic_napi_enable(struct qlcnic_adapter *adapter)
208 {
209 int ring;
210 struct qlcnic_host_sds_ring *sds_ring;
211 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
212
213 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
214 return;
215
216 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
217 sds_ring = &recv_ctx->sds_rings[ring];
218 napi_enable(&sds_ring->napi);
219 qlcnic_enable_int(sds_ring);
220 }
221 }
222
223 static void
224 qlcnic_napi_disable(struct qlcnic_adapter *adapter)
225 {
226 int ring;
227 struct qlcnic_host_sds_ring *sds_ring;
228 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
229
230 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
231 return;
232
233 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
234 sds_ring = &recv_ctx->sds_rings[ring];
235 qlcnic_disable_int(sds_ring);
236 napi_synchronize(&sds_ring->napi);
237 napi_disable(&sds_ring->napi);
238 }
239 }
240
241 static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
242 {
243 memset(&adapter->stats, 0, sizeof(adapter->stats));
244 }
245
246 static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
247 {
248 u32 control;
249 int pos;
250
251 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
252 if (pos) {
253 pci_read_config_dword(pdev, pos, &control);
254 if (enable)
255 control |= PCI_MSIX_FLAGS_ENABLE;
256 else
257 control = 0;
258 pci_write_config_dword(pdev, pos, control);
259 }
260 }
261
262 static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
263 {
264 int i;
265
266 for (i = 0; i < count; i++)
267 adapter->msix_entries[i].entry = i;
268 }
269
270 static int
271 qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
272 {
273 u8 mac_addr[ETH_ALEN];
274 struct net_device *netdev = adapter->netdev;
275 struct pci_dev *pdev = adapter->pdev;
276
277 if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
278 return -EIO;
279
280 memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
281 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
282 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
283
284 /* set station address */
285
286 if (!is_valid_ether_addr(netdev->perm_addr))
287 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
288 netdev->dev_addr);
289
290 return 0;
291 }
292
293 static int qlcnic_set_mac(struct net_device *netdev, void *p)
294 {
295 struct qlcnic_adapter *adapter = netdev_priv(netdev);
296 struct sockaddr *addr = p;
297
298 if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
299 return -EOPNOTSUPP;
300
301 if (!is_valid_ether_addr(addr->sa_data))
302 return -EINVAL;
303
304 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
305 netif_device_detach(netdev);
306 qlcnic_napi_disable(adapter);
307 }
308
309 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
310 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
311 qlcnic_set_multi(adapter->netdev);
312
313 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
314 netif_device_attach(netdev);
315 qlcnic_napi_enable(adapter);
316 }
317 return 0;
318 }
319
320 static void qlcnic_vlan_rx_register(struct net_device *netdev,
321 struct vlan_group *grp)
322 {
323 struct qlcnic_adapter *adapter = netdev_priv(netdev);
324 adapter->vlgrp = grp;
325 }
326
327 static const struct net_device_ops qlcnic_netdev_ops = {
328 .ndo_open = qlcnic_open,
329 .ndo_stop = qlcnic_close,
330 .ndo_start_xmit = qlcnic_xmit_frame,
331 .ndo_get_stats = qlcnic_get_stats,
332 .ndo_validate_addr = eth_validate_addr,
333 .ndo_set_multicast_list = qlcnic_set_multi,
334 .ndo_set_mac_address = qlcnic_set_mac,
335 .ndo_change_mtu = qlcnic_change_mtu,
336 .ndo_tx_timeout = qlcnic_tx_timeout,
337 .ndo_vlan_rx_register = qlcnic_vlan_rx_register,
338 #ifdef CONFIG_NET_POLL_CONTROLLER
339 .ndo_poll_controller = qlcnic_poll_controller,
340 #endif
341 };
342
343 static struct qlcnic_nic_template qlcnic_ops = {
344 .config_bridged_mode = qlcnic_config_bridged_mode,
345 .config_led = qlcnic_config_led,
346 .start_firmware = qlcnic_start_firmware
347 };
348
349 static struct qlcnic_nic_template qlcnic_vf_ops = {
350 .config_bridged_mode = qlcnicvf_config_bridged_mode,
351 .config_led = qlcnicvf_config_led,
352 .start_firmware = qlcnicvf_start_firmware
353 };
354
355 static void
356 qlcnic_setup_intr(struct qlcnic_adapter *adapter)
357 {
358 const struct qlcnic_legacy_intr_set *legacy_intrp;
359 struct pci_dev *pdev = adapter->pdev;
360 int err, num_msix;
361
362 if (adapter->rss_supported) {
363 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
364 MSIX_ENTRIES_PER_ADAPTER : 2;
365 } else
366 num_msix = 1;
367
368 adapter->max_sds_rings = 1;
369
370 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
371
372 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
373
374 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
375 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
376 legacy_intrp->tgt_status_reg);
377 adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
378 legacy_intrp->tgt_mask_reg);
379 adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
380
381 adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
382 ISR_INT_STATE_REG);
383
384 qlcnic_set_msix_bit(pdev, 0);
385
386 if (adapter->msix_supported) {
387
388 qlcnic_init_msix_entries(adapter, num_msix);
389 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
390 if (err == 0) {
391 adapter->flags |= QLCNIC_MSIX_ENABLED;
392 qlcnic_set_msix_bit(pdev, 1);
393
394 if (adapter->rss_supported)
395 adapter->max_sds_rings = num_msix;
396
397 dev_info(&pdev->dev, "using msi-x interrupts\n");
398 return;
399 }
400
401 if (err > 0)
402 pci_disable_msix(pdev);
403
404 /* fall through for msi */
405 }
406
407 if (use_msi && !pci_enable_msi(pdev)) {
408 adapter->flags |= QLCNIC_MSI_ENABLED;
409 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
410 msi_tgt_status[adapter->ahw.pci_func]);
411 dev_info(&pdev->dev, "using msi interrupts\n");
412 adapter->msix_entries[0].vector = pdev->irq;
413 return;
414 }
415
416 dev_info(&pdev->dev, "using legacy interrupts\n");
417 adapter->msix_entries[0].vector = pdev->irq;
418 }
419
420 static void
421 qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
422 {
423 if (adapter->flags & QLCNIC_MSIX_ENABLED)
424 pci_disable_msix(adapter->pdev);
425 if (adapter->flags & QLCNIC_MSI_ENABLED)
426 pci_disable_msi(adapter->pdev);
427 }
428
429 static void
430 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
431 {
432 if (adapter->ahw.pci_base0 != NULL)
433 iounmap(adapter->ahw.pci_base0);
434 }
435
436 static int
437 qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
438 {
439 struct qlcnic_pci_info *pci_info;
440 int i, ret = 0;
441 u8 pfn;
442
443 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
444 if (!pci_info)
445 return -ENOMEM;
446
447 adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
448 QLCNIC_MAX_PCI_FUNC, GFP_KERNEL);
449 if (!adapter->npars) {
450 ret = -ENOMEM;
451 goto err_pci_info;
452 }
453
454 adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
455 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
456 if (!adapter->eswitch) {
457 ret = -ENOMEM;
458 goto err_npars;
459 }
460
461 ret = qlcnic_get_pci_info(adapter, pci_info);
462 if (ret)
463 goto err_eswitch;
464
465 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
466 pfn = pci_info[i].id;
467 if (pfn > QLCNIC_MAX_PCI_FUNC)
468 return QL_STATUS_INVALID_PARAM;
469 adapter->npars[pfn].active = (u8)pci_info[i].active;
470 adapter->npars[pfn].type = (u8)pci_info[i].type;
471 adapter->npars[pfn].phy_port = (u8)pci_info[i].default_port;
472 adapter->npars[pfn].min_bw = pci_info[i].tx_min_bw;
473 adapter->npars[pfn].max_bw = pci_info[i].tx_max_bw;
474 }
475
476 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
477 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
478
479 kfree(pci_info);
480 return 0;
481
482 err_eswitch:
483 kfree(adapter->eswitch);
484 adapter->eswitch = NULL;
485 err_npars:
486 kfree(adapter->npars);
487 adapter->npars = NULL;
488 err_pci_info:
489 kfree(pci_info);
490
491 return ret;
492 }
493
494 static int
495 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
496 {
497 u8 id;
498 u32 ref_count;
499 int i, ret = 1;
500 u32 data = QLCNIC_MGMT_FUNC;
501 void __iomem *priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
502
503 /* If other drivers are not in use set their privilege level */
504 ref_count = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
505 ret = qlcnic_api_lock(adapter);
506 if (ret)
507 goto err_lock;
508
509 if (qlcnic_config_npars) {
510 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
511 id = i;
512 if (adapter->npars[i].type != QLCNIC_TYPE_NIC ||
513 id == adapter->ahw.pci_func)
514 continue;
515 data |= (qlcnic_config_npars &
516 QLC_DEV_SET_DRV(0xf, id));
517 }
518 } else {
519 data = readl(priv_op);
520 data = (data & ~QLC_DEV_SET_DRV(0xf, adapter->ahw.pci_func)) |
521 (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
522 adapter->ahw.pci_func));
523 }
524 writel(data, priv_op);
525 qlcnic_api_unlock(adapter);
526 err_lock:
527 return ret;
528 }
529
530 static void
531 qlcnic_check_vf(struct qlcnic_adapter *adapter)
532 {
533 void __iomem *msix_base_addr;
534 void __iomem *priv_op;
535 u32 func;
536 u32 msix_base;
537 u32 op_mode, priv_level;
538
539 /* Determine FW API version */
540 adapter->fw_hal_version = readl(adapter->ahw.pci_base0 + QLCNIC_FW_API);
541
542 /* Find PCI function number */
543 pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
544 msix_base_addr = adapter->ahw.pci_base0 + QLCNIC_MSIX_BASE;
545 msix_base = readl(msix_base_addr);
546 func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE;
547 adapter->ahw.pci_func = func;
548
549 /* Determine function privilege level */
550 priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
551 op_mode = readl(priv_op);
552 if (op_mode == QLC_DEV_DRV_DEFAULT)
553 priv_level = QLCNIC_MGMT_FUNC;
554 else
555 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
556
557 if (priv_level == QLCNIC_NON_PRIV_FUNC) {
558 adapter->op_mode = QLCNIC_NON_PRIV_FUNC;
559 dev_info(&adapter->pdev->dev,
560 "HAL Version: %d Non Privileged function\n",
561 adapter->fw_hal_version);
562 adapter->nic_ops = &qlcnic_vf_ops;
563 } else
564 adapter->nic_ops = &qlcnic_ops;
565 }
566
567 static int
568 qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
569 {
570 void __iomem *mem_ptr0 = NULL;
571 resource_size_t mem_base;
572 unsigned long mem_len, pci_len0 = 0;
573
574 struct pci_dev *pdev = adapter->pdev;
575
576 /* remap phys address */
577 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
578 mem_len = pci_resource_len(pdev, 0);
579
580 if (mem_len == QLCNIC_PCI_2MB_SIZE) {
581
582 mem_ptr0 = pci_ioremap_bar(pdev, 0);
583 if (mem_ptr0 == NULL) {
584 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
585 return -EIO;
586 }
587 pci_len0 = mem_len;
588 } else {
589 return -EIO;
590 }
591
592 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
593
594 adapter->ahw.pci_base0 = mem_ptr0;
595 adapter->ahw.pci_len0 = pci_len0;
596
597 qlcnic_check_vf(adapter);
598
599 adapter->ahw.ocm_win_crb = qlcnic_get_ioaddr(adapter,
600 QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(adapter->ahw.pci_func)));
601
602 return 0;
603 }
604
605 static void get_brd_name(struct qlcnic_adapter *adapter, char *name)
606 {
607 struct pci_dev *pdev = adapter->pdev;
608 int i, found = 0;
609
610 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
611 if (qlcnic_boards[i].vendor == pdev->vendor &&
612 qlcnic_boards[i].device == pdev->device &&
613 qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
614 qlcnic_boards[i].sub_device == pdev->subsystem_device) {
615 sprintf(name, "%pM: %s" ,
616 adapter->mac_addr,
617 qlcnic_boards[i].short_name);
618 found = 1;
619 break;
620 }
621
622 }
623
624 if (!found)
625 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
626 }
627
628 static void
629 qlcnic_check_options(struct qlcnic_adapter *adapter)
630 {
631 u32 fw_major, fw_minor, fw_build;
632 struct pci_dev *pdev = adapter->pdev;
633
634 fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
635 fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
636 fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
637
638 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
639
640 dev_info(&pdev->dev, "firmware v%d.%d.%d\n",
641 fw_major, fw_minor, fw_build);
642 if (adapter->ahw.port_type == QLCNIC_XGBE) {
643 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
644 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
645 adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
646 } else {
647 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
648 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
649 }
650
651 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
652 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
653
654 } else if (adapter->ahw.port_type == QLCNIC_GBE) {
655 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
656 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
657 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
658 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
659 }
660
661 adapter->msix_supported = !!use_msi_x;
662 adapter->rss_supported = !!use_msi_x;
663
664 adapter->num_txd = MAX_CMD_DESCRIPTORS;
665
666 adapter->max_rds_rings = MAX_RDS_RINGS;
667 }
668
669 static int
670 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
671 {
672 int err;
673 struct qlcnic_info nic_info;
674
675 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw.pci_func);
676 if (err)
677 return err;
678
679 adapter->physical_port = (u8)nic_info.phys_port;
680 adapter->switch_mode = nic_info.switch_mode;
681 adapter->max_tx_ques = nic_info.max_tx_ques;
682 adapter->max_rx_ques = nic_info.max_rx_ques;
683 adapter->capabilities = nic_info.capabilities;
684 adapter->max_mac_filters = nic_info.max_mac_filters;
685 adapter->max_mtu = nic_info.max_mtu;
686
687 if (adapter->capabilities & BIT_6)
688 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
689 else
690 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
691
692 return err;
693 }
694
695 static void
696 qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
697 struct qlcnic_esw_func_cfg *esw_cfg)
698 {
699 if (esw_cfg->discard_tagged)
700 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
701 else
702 adapter->flags |= QLCNIC_TAGGING_ENABLED;
703
704 if (esw_cfg->vlan_id)
705 adapter->pvid = esw_cfg->vlan_id;
706 else
707 adapter->pvid = 0;
708 }
709
710 static void
711 qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
712 struct qlcnic_esw_func_cfg *esw_cfg)
713 {
714 adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
715 QLCNIC_PROMISC_DISABLED);
716
717 if (esw_cfg->mac_anti_spoof)
718 adapter->flags |= QLCNIC_MACSPOOF;
719
720 if (!esw_cfg->mac_override)
721 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
722
723 if (!esw_cfg->promisc_mode)
724 adapter->flags |= QLCNIC_PROMISC_DISABLED;
725
726 qlcnic_set_netdev_features(adapter, esw_cfg);
727 }
728
729 static int
730 qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
731 {
732 struct qlcnic_esw_func_cfg esw_cfg;
733
734 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
735 return 0;
736
737 esw_cfg.pci_func = adapter->ahw.pci_func;
738 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
739 return -EIO;
740 qlcnic_set_vlan_config(adapter, &esw_cfg);
741 qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
742
743 return 0;
744 }
745
746 static void
747 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
748 struct qlcnic_esw_func_cfg *esw_cfg)
749 {
750 struct net_device *netdev = adapter->netdev;
751 unsigned long features, vlan_features;
752
753 features = (NETIF_F_SG | NETIF_F_IP_CSUM |
754 NETIF_F_IPV6_CSUM | NETIF_F_GRO);
755 vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
756 NETIF_F_IPV6_CSUM);
757
758 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
759 features |= (NETIF_F_TSO | NETIF_F_TSO6);
760 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
761 }
762 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
763 features |= NETIF_F_LRO;
764
765 if (esw_cfg->offload_flags & BIT_0) {
766 netdev->features |= features;
767 adapter->rx_csum = 1;
768 if (!(esw_cfg->offload_flags & BIT_1))
769 netdev->features &= ~NETIF_F_TSO;
770 if (!(esw_cfg->offload_flags & BIT_2))
771 netdev->features &= ~NETIF_F_TSO6;
772 } else {
773 netdev->features &= ~features;
774 adapter->rx_csum = 0;
775 }
776
777 netdev->vlan_features = (features & vlan_features);
778 }
779
780 static int
781 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
782 {
783 void __iomem *priv_op;
784 u32 op_mode, priv_level;
785 int err = 0;
786
787 err = qlcnic_initialize_nic(adapter);
788 if (err)
789 return err;
790
791 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
792 return 0;
793
794 priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
795 op_mode = readl(priv_op);
796 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
797
798 if (op_mode == QLC_DEV_DRV_DEFAULT)
799 priv_level = QLCNIC_MGMT_FUNC;
800 else
801 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
802
803 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
804 if (priv_level == QLCNIC_MGMT_FUNC) {
805 adapter->op_mode = QLCNIC_MGMT_FUNC;
806 err = qlcnic_init_pci_info(adapter);
807 if (err)
808 return err;
809 /* Set privilege level for other functions */
810 qlcnic_set_function_modes(adapter);
811 dev_info(&adapter->pdev->dev,
812 "HAL Version: %d, Management function\n",
813 adapter->fw_hal_version);
814 } else if (priv_level == QLCNIC_PRIV_FUNC) {
815 adapter->op_mode = QLCNIC_PRIV_FUNC;
816 dev_info(&adapter->pdev->dev,
817 "HAL Version: %d, Privileged function\n",
818 adapter->fw_hal_version);
819 }
820 }
821
822 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
823
824 return err;
825 }
826
827 static int
828 qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
829 {
830 struct qlcnic_esw_func_cfg esw_cfg;
831 struct qlcnic_npar_info *npar;
832 u8 i;
833
834 if (adapter->need_fw_reset)
835 return 0;
836
837 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
838 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
839 continue;
840 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
841 esw_cfg.pci_func = i;
842 esw_cfg.offload_flags = BIT_0;
843 esw_cfg.mac_override = BIT_0;
844 esw_cfg.promisc_mode = BIT_0;
845 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO)
846 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
847 if (qlcnic_config_switch_port(adapter, &esw_cfg))
848 return -EIO;
849 npar = &adapter->npars[i];
850 npar->pvid = esw_cfg.vlan_id;
851 npar->mac_override = esw_cfg.mac_override;
852 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
853 npar->discard_tagged = esw_cfg.discard_tagged;
854 npar->promisc_mode = esw_cfg.promisc_mode;
855 npar->offload_flags = esw_cfg.offload_flags;
856 }
857
858 return 0;
859 }
860
861 static int
862 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
863 struct qlcnic_npar_info *npar, int pci_func)
864 {
865 struct qlcnic_esw_func_cfg esw_cfg;
866 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
867 esw_cfg.pci_func = pci_func;
868 esw_cfg.vlan_id = npar->pvid;
869 esw_cfg.mac_override = npar->mac_override;
870 esw_cfg.discard_tagged = npar->discard_tagged;
871 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
872 esw_cfg.offload_flags = npar->offload_flags;
873 esw_cfg.promisc_mode = npar->promisc_mode;
874 if (qlcnic_config_switch_port(adapter, &esw_cfg))
875 return -EIO;
876
877 esw_cfg.op_mode = QLCNIC_ADD_VLAN;
878 if (qlcnic_config_switch_port(adapter, &esw_cfg))
879 return -EIO;
880
881 return 0;
882 }
883
884 static int
885 qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
886 {
887 int i, err;
888 struct qlcnic_npar_info *npar;
889 struct qlcnic_info nic_info;
890
891 if (!adapter->need_fw_reset)
892 return 0;
893
894 /* Set the NPAR config data after FW reset */
895 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
896 npar = &adapter->npars[i];
897 if (npar->type != QLCNIC_TYPE_NIC)
898 continue;
899 err = qlcnic_get_nic_info(adapter, &nic_info, i);
900 if (err)
901 return err;
902 nic_info.min_tx_bw = npar->min_bw;
903 nic_info.max_tx_bw = npar->max_bw;
904 err = qlcnic_set_nic_info(adapter, &nic_info);
905 if (err)
906 return err;
907
908 if (npar->enable_pm) {
909 err = qlcnic_config_port_mirroring(adapter,
910 npar->dest_npar, 1, i);
911 if (err)
912 return err;
913 }
914 err = qlcnic_reset_eswitch_config(adapter, npar, i);
915 if (err)
916 return err;
917 }
918 return 0;
919 }
920
921 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
922 {
923 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
924 u32 npar_state;
925
926 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
927 return 0;
928
929 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
930 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
931 msleep(1000);
932 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
933 }
934 if (!npar_opt_timeo) {
935 dev_err(&adapter->pdev->dev,
936 "Waiting for NPAR state to opertional timeout\n");
937 return -EIO;
938 }
939 return 0;
940 }
941
942 static int
943 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
944 {
945 int err;
946
947 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
948 adapter->op_mode != QLCNIC_MGMT_FUNC)
949 return 0;
950
951 err = qlcnic_set_default_offload_settings(adapter);
952 if (err)
953 return err;
954
955 err = qlcnic_reset_npar_config(adapter);
956 if (err)
957 return err;
958
959 qlcnic_dev_set_npar_ready(adapter);
960
961 return err;
962 }
963
964 static int
965 qlcnic_start_firmware(struct qlcnic_adapter *adapter)
966 {
967 int err;
968
969 err = qlcnic_can_start_firmware(adapter);
970 if (err < 0)
971 return err;
972 else if (!err)
973 goto check_fw_status;
974
975 if (load_fw_file)
976 qlcnic_request_firmware(adapter);
977 else {
978 err = qlcnic_check_flash_fw_ver(adapter);
979 if (err)
980 goto err_out;
981
982 adapter->fw_type = QLCNIC_FLASH_ROMIMAGE;
983 }
984
985 err = qlcnic_need_fw_reset(adapter);
986 if (err == 0)
987 goto check_fw_status;
988
989 err = qlcnic_pinit_from_rom(adapter);
990 if (err)
991 goto err_out;
992
993 err = qlcnic_load_firmware(adapter);
994 if (err)
995 goto err_out;
996
997 qlcnic_release_firmware(adapter);
998 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
999
1000 check_fw_status:
1001 err = qlcnic_check_fw_status(adapter);
1002 if (err)
1003 goto err_out;
1004
1005 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1006 qlcnic_idc_debug_info(adapter, 1);
1007
1008 err = qlcnic_check_eswitch_mode(adapter);
1009 if (err) {
1010 dev_err(&adapter->pdev->dev,
1011 "Memory allocation failed for eswitch\n");
1012 goto err_out;
1013 }
1014 err = qlcnic_set_mgmt_operations(adapter);
1015 if (err)
1016 goto err_out;
1017
1018 qlcnic_check_options(adapter);
1019 adapter->need_fw_reset = 0;
1020
1021 qlcnic_release_firmware(adapter);
1022 return 0;
1023
1024 err_out:
1025 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1026 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1027
1028 qlcnic_release_firmware(adapter);
1029 return err;
1030 }
1031
1032 static int
1033 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1034 {
1035 irq_handler_t handler;
1036 struct qlcnic_host_sds_ring *sds_ring;
1037 int err, ring;
1038
1039 unsigned long flags = 0;
1040 struct net_device *netdev = adapter->netdev;
1041 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1042
1043 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1044 handler = qlcnic_tmp_intr;
1045 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1046 flags |= IRQF_SHARED;
1047
1048 } else {
1049 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1050 handler = qlcnic_msix_intr;
1051 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1052 handler = qlcnic_msi_intr;
1053 else {
1054 flags |= IRQF_SHARED;
1055 handler = qlcnic_intr;
1056 }
1057 }
1058 adapter->irq = netdev->irq;
1059
1060 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1061 sds_ring = &recv_ctx->sds_rings[ring];
1062 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1063 err = request_irq(sds_ring->irq, handler,
1064 flags, sds_ring->name, sds_ring);
1065 if (err)
1066 return err;
1067 }
1068
1069 return 0;
1070 }
1071
1072 static void
1073 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1074 {
1075 int ring;
1076 struct qlcnic_host_sds_ring *sds_ring;
1077
1078 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1079
1080 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1081 sds_ring = &recv_ctx->sds_rings[ring];
1082 free_irq(sds_ring->irq, sds_ring);
1083 }
1084 }
1085
1086 static void
1087 qlcnic_init_coalesce_defaults(struct qlcnic_adapter *adapter)
1088 {
1089 adapter->coal.flags = QLCNIC_INTR_DEFAULT;
1090 adapter->coal.normal.data.rx_time_us =
1091 QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1092 adapter->coal.normal.data.rx_packets =
1093 QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1094 adapter->coal.normal.data.tx_time_us =
1095 QLCNIC_DEFAULT_INTR_COALESCE_TX_TIME_US;
1096 adapter->coal.normal.data.tx_packets =
1097 QLCNIC_DEFAULT_INTR_COALESCE_TX_PACKETS;
1098 }
1099
1100 static int
1101 __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1102 {
1103 int ring;
1104 struct qlcnic_host_rds_ring *rds_ring;
1105
1106 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1107 return -EIO;
1108
1109 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1110 return 0;
1111 if (qlcnic_set_eswitch_port_config(adapter))
1112 return -EIO;
1113
1114 if (qlcnic_fw_create_ctx(adapter))
1115 return -EIO;
1116
1117 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1118 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1119 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
1120 }
1121
1122 qlcnic_set_multi(netdev);
1123 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1124
1125 adapter->ahw.linkup = 0;
1126
1127 if (adapter->max_sds_rings > 1)
1128 qlcnic_config_rss(adapter, 1);
1129
1130 qlcnic_config_intr_coalesce(adapter);
1131
1132 if (netdev->features & NETIF_F_LRO)
1133 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1134
1135 qlcnic_napi_enable(adapter);
1136
1137 qlcnic_linkevent_request(adapter, 1);
1138
1139 adapter->reset_context = 0;
1140 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1141 return 0;
1142 }
1143
1144 /* Usage: During resume and firmware recovery module.*/
1145
1146 static int
1147 qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1148 {
1149 int err = 0;
1150
1151 rtnl_lock();
1152 if (netif_running(netdev))
1153 err = __qlcnic_up(adapter, netdev);
1154 rtnl_unlock();
1155
1156 return err;
1157 }
1158
1159 static void
1160 __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1161 {
1162 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1163 return;
1164
1165 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1166 return;
1167
1168 smp_mb();
1169 spin_lock(&adapter->tx_clean_lock);
1170 netif_carrier_off(netdev);
1171 netif_tx_disable(netdev);
1172
1173 qlcnic_free_mac_list(adapter);
1174
1175 if (adapter->fhash.fnum)
1176 qlcnic_delete_lb_filters(adapter);
1177
1178 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1179
1180 qlcnic_napi_disable(adapter);
1181
1182 qlcnic_fw_destroy_ctx(adapter);
1183
1184 qlcnic_reset_rx_buffers_list(adapter);
1185 qlcnic_release_tx_buffers(adapter);
1186 spin_unlock(&adapter->tx_clean_lock);
1187 }
1188
1189 /* Usage: During suspend and firmware recovery module */
1190
1191 static void
1192 qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1193 {
1194 rtnl_lock();
1195 if (netif_running(netdev))
1196 __qlcnic_down(adapter, netdev);
1197 rtnl_unlock();
1198
1199 }
1200
1201 static int
1202 qlcnic_attach(struct qlcnic_adapter *adapter)
1203 {
1204 struct net_device *netdev = adapter->netdev;
1205 struct pci_dev *pdev = adapter->pdev;
1206 int err;
1207
1208 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1209 return 0;
1210
1211 err = qlcnic_napi_add(adapter, netdev);
1212 if (err)
1213 return err;
1214
1215 err = qlcnic_alloc_sw_resources(adapter);
1216 if (err) {
1217 dev_err(&pdev->dev, "Error in setting sw resources\n");
1218 goto err_out_napi_del;
1219 }
1220
1221 err = qlcnic_alloc_hw_resources(adapter);
1222 if (err) {
1223 dev_err(&pdev->dev, "Error in setting hw resources\n");
1224 goto err_out_free_sw;
1225 }
1226
1227 err = qlcnic_request_irq(adapter);
1228 if (err) {
1229 dev_err(&pdev->dev, "failed to setup interrupt\n");
1230 goto err_out_free_hw;
1231 }
1232
1233 qlcnic_init_coalesce_defaults(adapter);
1234
1235 qlcnic_create_sysfs_entries(adapter);
1236
1237 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1238 return 0;
1239
1240 err_out_free_hw:
1241 qlcnic_free_hw_resources(adapter);
1242 err_out_free_sw:
1243 qlcnic_free_sw_resources(adapter);
1244 err_out_napi_del:
1245 qlcnic_napi_del(adapter);
1246 return err;
1247 }
1248
1249 static void
1250 qlcnic_detach(struct qlcnic_adapter *adapter)
1251 {
1252 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1253 return;
1254
1255 qlcnic_remove_sysfs_entries(adapter);
1256
1257 qlcnic_free_hw_resources(adapter);
1258 qlcnic_release_rx_buffers(adapter);
1259 qlcnic_free_irq(adapter);
1260 qlcnic_napi_del(adapter);
1261 qlcnic_free_sw_resources(adapter);
1262
1263 adapter->is_up = 0;
1264 }
1265
1266 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1267 {
1268 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1269 struct qlcnic_host_sds_ring *sds_ring;
1270 int ring;
1271
1272 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1273 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1274 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1275 sds_ring = &adapter->recv_ctx.sds_rings[ring];
1276 qlcnic_disable_int(sds_ring);
1277 }
1278 }
1279
1280 qlcnic_fw_destroy_ctx(adapter);
1281
1282 qlcnic_detach(adapter);
1283
1284 adapter->diag_test = 0;
1285 adapter->max_sds_rings = max_sds_rings;
1286
1287 if (qlcnic_attach(adapter))
1288 goto out;
1289
1290 if (netif_running(netdev))
1291 __qlcnic_up(adapter, netdev);
1292 out:
1293 netif_device_attach(netdev);
1294 }
1295
1296 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1297 {
1298 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1299 struct qlcnic_host_sds_ring *sds_ring;
1300 struct qlcnic_host_rds_ring *rds_ring;
1301 int ring;
1302 int ret;
1303
1304 netif_device_detach(netdev);
1305
1306 if (netif_running(netdev))
1307 __qlcnic_down(adapter, netdev);
1308
1309 qlcnic_detach(adapter);
1310
1311 adapter->max_sds_rings = 1;
1312 adapter->diag_test = test;
1313
1314 ret = qlcnic_attach(adapter);
1315 if (ret) {
1316 netif_device_attach(netdev);
1317 return ret;
1318 }
1319
1320 ret = qlcnic_fw_create_ctx(adapter);
1321 if (ret) {
1322 qlcnic_detach(adapter);
1323 netif_device_attach(netdev);
1324 return ret;
1325 }
1326
1327 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1328 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1329 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
1330 }
1331
1332 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1333 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1334 sds_ring = &adapter->recv_ctx.sds_rings[ring];
1335 qlcnic_enable_int(sds_ring);
1336 }
1337 }
1338 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1339
1340 return 0;
1341 }
1342
1343 /* Reset context in hardware only */
1344 static int
1345 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1346 {
1347 struct net_device *netdev = adapter->netdev;
1348
1349 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1350 return -EBUSY;
1351
1352 netif_device_detach(netdev);
1353
1354 qlcnic_down(adapter, netdev);
1355
1356 qlcnic_up(adapter, netdev);
1357
1358 netif_device_attach(netdev);
1359
1360 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1361 return 0;
1362 }
1363
1364 int
1365 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1366 {
1367 int err = 0;
1368 struct net_device *netdev = adapter->netdev;
1369
1370 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1371 return -EBUSY;
1372
1373 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1374
1375 netif_device_detach(netdev);
1376
1377 if (netif_running(netdev))
1378 __qlcnic_down(adapter, netdev);
1379
1380 qlcnic_detach(adapter);
1381
1382 if (netif_running(netdev)) {
1383 err = qlcnic_attach(adapter);
1384 if (!err)
1385 __qlcnic_up(adapter, netdev);
1386 }
1387
1388 netif_device_attach(netdev);
1389 }
1390
1391 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1392 return err;
1393 }
1394
1395 static int
1396 qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
1397 struct net_device *netdev, u8 pci_using_dac)
1398 {
1399 int err;
1400 struct pci_dev *pdev = adapter->pdev;
1401
1402 adapter->rx_csum = 1;
1403 adapter->mc_enabled = 0;
1404 adapter->max_mc_count = 38;
1405
1406 netdev->netdev_ops = &qlcnic_netdev_ops;
1407 netdev->watchdog_timeo = 5*HZ;
1408
1409 qlcnic_change_mtu(netdev, netdev->mtu);
1410
1411 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1412
1413 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1414 NETIF_F_IPV6_CSUM | NETIF_F_GRO | NETIF_F_HW_VLAN_RX);
1415 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1416 NETIF_F_IPV6_CSUM);
1417
1418 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
1419 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1420 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1421 }
1422
1423 if (pci_using_dac) {
1424 netdev->features |= NETIF_F_HIGHDMA;
1425 netdev->vlan_features |= NETIF_F_HIGHDMA;
1426 }
1427
1428 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
1429 netdev->features |= (NETIF_F_HW_VLAN_TX);
1430
1431 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1432 netdev->features |= NETIF_F_LRO;
1433 netdev->irq = adapter->msix_entries[0].vector;
1434
1435 netif_carrier_off(netdev);
1436
1437 err = register_netdev(netdev);
1438 if (err) {
1439 dev_err(&pdev->dev, "failed to register net device\n");
1440 return err;
1441 }
1442
1443 return 0;
1444 }
1445
1446 static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *pci_using_dac)
1447 {
1448 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1449 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1450 *pci_using_dac = 1;
1451 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1452 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1453 *pci_using_dac = 0;
1454 else {
1455 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1456 return -EIO;
1457 }
1458
1459 return 0;
1460 }
1461
1462 static int __devinit
1463 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1464 {
1465 struct net_device *netdev = NULL;
1466 struct qlcnic_adapter *adapter = NULL;
1467 int err;
1468 uint8_t revision_id;
1469 uint8_t pci_using_dac;
1470 char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
1471
1472 err = pci_enable_device(pdev);
1473 if (err)
1474 return err;
1475
1476 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1477 err = -ENODEV;
1478 goto err_out_disable_pdev;
1479 }
1480
1481 err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1482 if (err)
1483 goto err_out_disable_pdev;
1484
1485 err = pci_request_regions(pdev, qlcnic_driver_name);
1486 if (err)
1487 goto err_out_disable_pdev;
1488
1489 pci_set_master(pdev);
1490 pci_enable_pcie_error_reporting(pdev);
1491
1492 netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1493 if (!netdev) {
1494 dev_err(&pdev->dev, "failed to allocate net_device\n");
1495 err = -ENOMEM;
1496 goto err_out_free_res;
1497 }
1498
1499 SET_NETDEV_DEV(netdev, &pdev->dev);
1500
1501 adapter = netdev_priv(netdev);
1502 adapter->netdev = netdev;
1503 adapter->pdev = pdev;
1504 adapter->dev_rst_time = jiffies;
1505
1506 revision_id = pdev->revision;
1507 adapter->ahw.revision_id = revision_id;
1508
1509 rwlock_init(&adapter->ahw.crb_lock);
1510 mutex_init(&adapter->ahw.mem_lock);
1511
1512 spin_lock_init(&adapter->tx_clean_lock);
1513 INIT_LIST_HEAD(&adapter->mac_list);
1514
1515 err = qlcnic_setup_pci_map(adapter);
1516 if (err)
1517 goto err_out_free_netdev;
1518
1519 /* This will be reset for mezz cards */
1520 adapter->portnum = adapter->ahw.pci_func;
1521
1522 err = qlcnic_get_board_info(adapter);
1523 if (err) {
1524 dev_err(&pdev->dev, "Error getting board config info.\n");
1525 goto err_out_iounmap;
1526 }
1527
1528 err = qlcnic_setup_idc_param(adapter);
1529 if (err)
1530 goto err_out_iounmap;
1531
1532 adapter->flags |= QLCNIC_NEED_FLR;
1533
1534 err = adapter->nic_ops->start_firmware(adapter);
1535 if (err) {
1536 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1537 goto err_out_decr_ref;
1538 }
1539
1540 if (qlcnic_read_mac_addr(adapter))
1541 dev_warn(&pdev->dev, "failed to read mac addr\n");
1542
1543 if (adapter->portnum == 0) {
1544 get_brd_name(adapter, brd_name);
1545
1546 pr_info("%s: %s Board Chip rev 0x%x\n",
1547 module_name(THIS_MODULE),
1548 brd_name, adapter->ahw.revision_id);
1549 }
1550
1551 qlcnic_clear_stats(adapter);
1552
1553 qlcnic_setup_intr(adapter);
1554
1555 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1556 if (err)
1557 goto err_out_disable_msi;
1558
1559 pci_set_drvdata(pdev, adapter);
1560
1561 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1562
1563 switch (adapter->ahw.port_type) {
1564 case QLCNIC_GBE:
1565 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1566 adapter->netdev->name);
1567 break;
1568 case QLCNIC_XGBE:
1569 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1570 adapter->netdev->name);
1571 break;
1572 }
1573
1574 qlcnic_alloc_lb_filters_mem(adapter);
1575 qlcnic_create_diag_entries(adapter);
1576
1577 return 0;
1578
1579 err_out_disable_msi:
1580 qlcnic_teardown_intr(adapter);
1581
1582 err_out_decr_ref:
1583 qlcnic_clr_all_drv_state(adapter, 0);
1584
1585 err_out_iounmap:
1586 qlcnic_cleanup_pci_map(adapter);
1587
1588 err_out_free_netdev:
1589 free_netdev(netdev);
1590
1591 err_out_free_res:
1592 pci_release_regions(pdev);
1593
1594 err_out_disable_pdev:
1595 pci_set_drvdata(pdev, NULL);
1596 pci_disable_device(pdev);
1597 return err;
1598 }
1599
1600 static void __devexit qlcnic_remove(struct pci_dev *pdev)
1601 {
1602 struct qlcnic_adapter *adapter;
1603 struct net_device *netdev;
1604
1605 adapter = pci_get_drvdata(pdev);
1606 if (adapter == NULL)
1607 return;
1608
1609 netdev = adapter->netdev;
1610
1611 qlcnic_cancel_fw_work(adapter);
1612
1613 unregister_netdev(netdev);
1614
1615 qlcnic_detach(adapter);
1616
1617 if (adapter->npars != NULL)
1618 kfree(adapter->npars);
1619 if (adapter->eswitch != NULL)
1620 kfree(adapter->eswitch);
1621
1622 qlcnic_clr_all_drv_state(adapter, 0);
1623
1624 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1625
1626 qlcnic_free_lb_filters_mem(adapter);
1627
1628 qlcnic_teardown_intr(adapter);
1629
1630 qlcnic_remove_diag_entries(adapter);
1631
1632 qlcnic_cleanup_pci_map(adapter);
1633
1634 qlcnic_release_firmware(adapter);
1635
1636 pci_disable_pcie_error_reporting(pdev);
1637 pci_release_regions(pdev);
1638 pci_disable_device(pdev);
1639 pci_set_drvdata(pdev, NULL);
1640
1641 free_netdev(netdev);
1642 }
1643 static int __qlcnic_shutdown(struct pci_dev *pdev)
1644 {
1645 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1646 struct net_device *netdev = adapter->netdev;
1647 int retval;
1648
1649 netif_device_detach(netdev);
1650
1651 qlcnic_cancel_fw_work(adapter);
1652
1653 if (netif_running(netdev))
1654 qlcnic_down(adapter, netdev);
1655
1656 qlcnic_clr_all_drv_state(adapter, 0);
1657
1658 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1659
1660 retval = pci_save_state(pdev);
1661 if (retval)
1662 return retval;
1663
1664 if (qlcnic_wol_supported(adapter)) {
1665 pci_enable_wake(pdev, PCI_D3cold, 1);
1666 pci_enable_wake(pdev, PCI_D3hot, 1);
1667 }
1668
1669 return 0;
1670 }
1671
1672 static void qlcnic_shutdown(struct pci_dev *pdev)
1673 {
1674 if (__qlcnic_shutdown(pdev))
1675 return;
1676
1677 pci_disable_device(pdev);
1678 }
1679
1680 #ifdef CONFIG_PM
1681 static int
1682 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1683 {
1684 int retval;
1685
1686 retval = __qlcnic_shutdown(pdev);
1687 if (retval)
1688 return retval;
1689
1690 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1691 return 0;
1692 }
1693
1694 static int
1695 qlcnic_resume(struct pci_dev *pdev)
1696 {
1697 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1698 struct net_device *netdev = adapter->netdev;
1699 int err;
1700
1701 err = pci_enable_device(pdev);
1702 if (err)
1703 return err;
1704
1705 pci_set_power_state(pdev, PCI_D0);
1706 pci_set_master(pdev);
1707 pci_restore_state(pdev);
1708
1709 err = adapter->nic_ops->start_firmware(adapter);
1710 if (err) {
1711 dev_err(&pdev->dev, "failed to start firmware\n");
1712 return err;
1713 }
1714
1715 if (netif_running(netdev)) {
1716 err = qlcnic_up(adapter, netdev);
1717 if (err)
1718 goto done;
1719
1720 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1721 }
1722 done:
1723 netif_device_attach(netdev);
1724 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1725 return 0;
1726 }
1727 #endif
1728
1729 static int qlcnic_open(struct net_device *netdev)
1730 {
1731 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1732 int err;
1733
1734 err = qlcnic_attach(adapter);
1735 if (err)
1736 return err;
1737
1738 err = __qlcnic_up(adapter, netdev);
1739 if (err)
1740 goto err_out;
1741
1742 netif_start_queue(netdev);
1743
1744 return 0;
1745
1746 err_out:
1747 qlcnic_detach(adapter);
1748 return err;
1749 }
1750
1751 /*
1752 * qlcnic_close - Disables a network interface entry point
1753 */
1754 static int qlcnic_close(struct net_device *netdev)
1755 {
1756 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1757
1758 __qlcnic_down(adapter, netdev);
1759 return 0;
1760 }
1761
1762 static void
1763 qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
1764 {
1765 void *head;
1766 int i;
1767
1768 if (!qlcnic_mac_learn)
1769 return;
1770
1771 spin_lock_init(&adapter->mac_learn_lock);
1772
1773 head = kcalloc(QLCNIC_LB_MAX_FILTERS, sizeof(struct hlist_head),
1774 GFP_KERNEL);
1775 if (!head)
1776 return;
1777
1778 adapter->fhash.fmax = QLCNIC_LB_MAX_FILTERS;
1779 adapter->fhash.fhead = (struct hlist_head *)head;
1780
1781 for (i = 0; i < adapter->fhash.fmax; i++)
1782 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
1783 }
1784
1785 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
1786 {
1787 if (adapter->fhash.fmax && adapter->fhash.fhead)
1788 kfree(adapter->fhash.fhead);
1789
1790 adapter->fhash.fhead = NULL;
1791 adapter->fhash.fmax = 0;
1792 }
1793
1794 static void qlcnic_change_filter(struct qlcnic_adapter *adapter,
1795 u64 uaddr, __le16 vlan_id, struct qlcnic_host_tx_ring *tx_ring)
1796 {
1797 struct cmd_desc_type0 *hwdesc;
1798 struct qlcnic_nic_req *req;
1799 struct qlcnic_mac_req *mac_req;
1800 struct qlcnic_vlan_req *vlan_req;
1801 u32 producer;
1802 u64 word;
1803
1804 producer = tx_ring->producer;
1805 hwdesc = &tx_ring->desc_head[tx_ring->producer];
1806
1807 req = (struct qlcnic_nic_req *)hwdesc;
1808 memset(req, 0, sizeof(struct qlcnic_nic_req));
1809 req->qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
1810
1811 word = QLCNIC_MAC_EVENT | ((u64)(adapter->portnum) << 16);
1812 req->req_hdr = cpu_to_le64(word);
1813
1814 mac_req = (struct qlcnic_mac_req *)&(req->words[0]);
1815 mac_req->op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD;
1816 memcpy(mac_req->mac_addr, &uaddr, ETH_ALEN);
1817
1818 vlan_req = (struct qlcnic_vlan_req *)&req->words[1];
1819 vlan_req->vlan_id = vlan_id;
1820
1821 tx_ring->producer = get_next_index(producer, tx_ring->num_desc);
1822 }
1823
1824 #define QLCNIC_MAC_HASH(MAC)\
1825 ((((MAC) & 0x70000) >> 0x10) | (((MAC) & 0x70000000000ULL) >> 0x25))
1826
1827 static void
1828 qlcnic_send_filter(struct qlcnic_adapter *adapter,
1829 struct qlcnic_host_tx_ring *tx_ring,
1830 struct cmd_desc_type0 *first_desc,
1831 struct sk_buff *skb)
1832 {
1833 struct ethhdr *phdr = (struct ethhdr *)(skb->data);
1834 struct qlcnic_filter *fil, *tmp_fil;
1835 struct hlist_node *tmp_hnode, *n;
1836 struct hlist_head *head;
1837 u64 src_addr = 0;
1838 __le16 vlan_id = 0;
1839 u8 hindex;
1840
1841 if (!compare_ether_addr(phdr->h_source, adapter->mac_addr))
1842 return;
1843
1844 if (adapter->fhash.fnum >= adapter->fhash.fmax)
1845 return;
1846
1847 /* Only NPAR capable devices support vlan based learning*/
1848 if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
1849 vlan_id = first_desc->vlan_TCI;
1850 memcpy(&src_addr, phdr->h_source, ETH_ALEN);
1851 hindex = QLCNIC_MAC_HASH(src_addr) & (QLCNIC_LB_MAX_FILTERS - 1);
1852 head = &(adapter->fhash.fhead[hindex]);
1853
1854 hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
1855 if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) &&
1856 tmp_fil->vlan_id == vlan_id) {
1857
1858 if (jiffies >
1859 (QLCNIC_READD_AGE * HZ + tmp_fil->ftime))
1860 qlcnic_change_filter(adapter, src_addr, vlan_id,
1861 tx_ring);
1862 tmp_fil->ftime = jiffies;
1863 return;
1864 }
1865 }
1866
1867 fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC);
1868 if (!fil)
1869 return;
1870
1871 qlcnic_change_filter(adapter, src_addr, vlan_id, tx_ring);
1872
1873 fil->ftime = jiffies;
1874 fil->vlan_id = vlan_id;
1875 memcpy(fil->faddr, &src_addr, ETH_ALEN);
1876 spin_lock(&adapter->mac_learn_lock);
1877 hlist_add_head(&(fil->fnode), head);
1878 adapter->fhash.fnum++;
1879 spin_unlock(&adapter->mac_learn_lock);
1880 }
1881
1882 static void
1883 qlcnic_tso_check(struct net_device *netdev,
1884 struct qlcnic_host_tx_ring *tx_ring,
1885 struct cmd_desc_type0 *first_desc,
1886 struct sk_buff *skb)
1887 {
1888 u8 opcode = TX_ETHER_PKT;
1889 __be16 protocol = skb->protocol;
1890 u16 flags = 0;
1891 int copied, offset, copy_len, hdr_len = 0, tso = 0;
1892 struct cmd_desc_type0 *hwdesc;
1893 struct vlan_ethhdr *vh;
1894 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1895 u32 producer = tx_ring->producer;
1896 __le16 vlan_oob = first_desc->flags_opcode &
1897 cpu_to_le16(FLAGS_VLAN_OOB);
1898
1899 if (*(skb->data) & BIT_0) {
1900 flags |= BIT_0;
1901 memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN);
1902 }
1903
1904 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1905 skb_shinfo(skb)->gso_size > 0) {
1906
1907 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1908
1909 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1910 first_desc->total_hdr_length = hdr_len;
1911 if (vlan_oob) {
1912 first_desc->total_hdr_length += VLAN_HLEN;
1913 first_desc->tcp_hdr_offset = VLAN_HLEN;
1914 first_desc->ip_hdr_offset = VLAN_HLEN;
1915 /* Only in case of TSO on vlan device */
1916 flags |= FLAGS_VLAN_TAGGED;
1917 }
1918
1919 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1920 TX_TCP_LSO6 : TX_TCP_LSO;
1921 tso = 1;
1922
1923 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1924 u8 l4proto;
1925
1926 if (protocol == cpu_to_be16(ETH_P_IP)) {
1927 l4proto = ip_hdr(skb)->protocol;
1928
1929 if (l4proto == IPPROTO_TCP)
1930 opcode = TX_TCP_PKT;
1931 else if (l4proto == IPPROTO_UDP)
1932 opcode = TX_UDP_PKT;
1933 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1934 l4proto = ipv6_hdr(skb)->nexthdr;
1935
1936 if (l4proto == IPPROTO_TCP)
1937 opcode = TX_TCPV6_PKT;
1938 else if (l4proto == IPPROTO_UDP)
1939 opcode = TX_UDPV6_PKT;
1940 }
1941 }
1942
1943 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1944 first_desc->ip_hdr_offset += skb_network_offset(skb);
1945 qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
1946
1947 if (!tso)
1948 return;
1949
1950 /* For LSO, we need to copy the MAC/IP/TCP headers into
1951 * the descriptor ring
1952 */
1953 copied = 0;
1954 offset = 2;
1955
1956 if (vlan_oob) {
1957 /* Create a TSO vlan header template for firmware */
1958
1959 hwdesc = &tx_ring->desc_head[producer];
1960 tx_ring->cmd_buf_arr[producer].skb = NULL;
1961
1962 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1963 hdr_len + VLAN_HLEN);
1964
1965 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1966 skb_copy_from_linear_data(skb, vh, 12);
1967 vh->h_vlan_proto = htons(ETH_P_8021Q);
1968 vh->h_vlan_TCI = (__be16)swab16((u16)first_desc->vlan_TCI);
1969
1970 skb_copy_from_linear_data_offset(skb, 12,
1971 (char *)vh + 16, copy_len - 16);
1972
1973 copied = copy_len - VLAN_HLEN;
1974 offset = 0;
1975
1976 producer = get_next_index(producer, tx_ring->num_desc);
1977 }
1978
1979 while (copied < hdr_len) {
1980
1981 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1982 (hdr_len - copied));
1983
1984 hwdesc = &tx_ring->desc_head[producer];
1985 tx_ring->cmd_buf_arr[producer].skb = NULL;
1986
1987 skb_copy_from_linear_data_offset(skb, copied,
1988 (char *)hwdesc + offset, copy_len);
1989
1990 copied += copy_len;
1991 offset = 0;
1992
1993 producer = get_next_index(producer, tx_ring->num_desc);
1994 }
1995
1996 tx_ring->producer = producer;
1997 barrier();
1998 adapter->stats.lso_frames++;
1999 }
2000
2001 static int
2002 qlcnic_map_tx_skb(struct pci_dev *pdev,
2003 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
2004 {
2005 struct qlcnic_skb_frag *nf;
2006 struct skb_frag_struct *frag;
2007 int i, nr_frags;
2008 dma_addr_t map;
2009
2010 nr_frags = skb_shinfo(skb)->nr_frags;
2011 nf = &pbuf->frag_array[0];
2012
2013 map = pci_map_single(pdev, skb->data,
2014 skb_headlen(skb), PCI_DMA_TODEVICE);
2015 if (pci_dma_mapping_error(pdev, map))
2016 goto out_err;
2017
2018 nf->dma = map;
2019 nf->length = skb_headlen(skb);
2020
2021 for (i = 0; i < nr_frags; i++) {
2022 frag = &skb_shinfo(skb)->frags[i];
2023 nf = &pbuf->frag_array[i+1];
2024
2025 map = pci_map_page(pdev, frag->page, frag->page_offset,
2026 frag->size, PCI_DMA_TODEVICE);
2027 if (pci_dma_mapping_error(pdev, map))
2028 goto unwind;
2029
2030 nf->dma = map;
2031 nf->length = frag->size;
2032 }
2033
2034 return 0;
2035
2036 unwind:
2037 while (--i >= 0) {
2038 nf = &pbuf->frag_array[i+1];
2039 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2040 }
2041
2042 nf = &pbuf->frag_array[0];
2043 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2044
2045 out_err:
2046 return -ENOMEM;
2047 }
2048
2049 static int
2050 qlcnic_check_tx_tagging(struct qlcnic_adapter *adapter,
2051 struct sk_buff *skb,
2052 struct cmd_desc_type0 *first_desc)
2053 {
2054 u8 opcode = 0;
2055 u16 flags = 0;
2056 __be16 protocol = skb->protocol;
2057 struct vlan_ethhdr *vh;
2058
2059 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
2060 vh = (struct vlan_ethhdr *)skb->data;
2061 protocol = vh->h_vlan_encapsulated_proto;
2062 flags = FLAGS_VLAN_TAGGED;
2063 qlcnic_set_tx_vlan_tci(first_desc, ntohs(vh->h_vlan_TCI));
2064 } else if (vlan_tx_tag_present(skb)) {
2065 flags = FLAGS_VLAN_OOB;
2066 qlcnic_set_tx_vlan_tci(first_desc, vlan_tx_tag_get(skb));
2067 }
2068 if (unlikely(adapter->pvid)) {
2069 if (first_desc->vlan_TCI &&
2070 !(adapter->flags & QLCNIC_TAGGING_ENABLED))
2071 return -EIO;
2072 if (first_desc->vlan_TCI &&
2073 (adapter->flags & QLCNIC_TAGGING_ENABLED))
2074 goto set_flags;
2075
2076 flags = FLAGS_VLAN_OOB;
2077 qlcnic_set_tx_vlan_tci(first_desc, adapter->pvid);
2078 }
2079 set_flags:
2080 qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
2081 return 0;
2082 }
2083
2084 static inline void
2085 qlcnic_clear_cmddesc(u64 *desc)
2086 {
2087 desc[0] = 0ULL;
2088 desc[2] = 0ULL;
2089 desc[7] = 0ULL;
2090 }
2091
2092 netdev_tx_t
2093 qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2094 {
2095 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2096 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2097 struct qlcnic_cmd_buffer *pbuf;
2098 struct qlcnic_skb_frag *buffrag;
2099 struct cmd_desc_type0 *hwdesc, *first_desc;
2100 struct pci_dev *pdev;
2101 struct ethhdr *phdr;
2102 int i, k;
2103
2104 u32 producer;
2105 int frag_count, no_of_desc;
2106 u32 num_txd = tx_ring->num_desc;
2107
2108 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
2109 netif_stop_queue(netdev);
2110 return NETDEV_TX_BUSY;
2111 }
2112
2113 if (adapter->flags & QLCNIC_MACSPOOF) {
2114 phdr = (struct ethhdr *)skb->data;
2115 if (compare_ether_addr(phdr->h_source,
2116 adapter->mac_addr))
2117 goto drop_packet;
2118 }
2119
2120 frag_count = skb_shinfo(skb)->nr_frags + 1;
2121
2122 /* 4 fragments per cmd des */
2123 no_of_desc = (frag_count + 3) >> 2;
2124
2125 if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2126 netif_stop_queue(netdev);
2127 smp_mb();
2128 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
2129 netif_start_queue(netdev);
2130 else {
2131 adapter->stats.xmit_off++;
2132 return NETDEV_TX_BUSY;
2133 }
2134 }
2135
2136 producer = tx_ring->producer;
2137 pbuf = &tx_ring->cmd_buf_arr[producer];
2138
2139 pdev = adapter->pdev;
2140
2141 first_desc = hwdesc = &tx_ring->desc_head[producer];
2142 qlcnic_clear_cmddesc((u64 *)hwdesc);
2143
2144 if (qlcnic_check_tx_tagging(adapter, skb, first_desc))
2145 goto drop_packet;
2146
2147 if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
2148 adapter->stats.tx_dma_map_error++;
2149 goto drop_packet;
2150 }
2151
2152 pbuf->skb = skb;
2153 pbuf->frag_count = frag_count;
2154
2155 qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
2156 qlcnic_set_tx_port(first_desc, adapter->portnum);
2157
2158 for (i = 0; i < frag_count; i++) {
2159
2160 k = i % 4;
2161
2162 if ((k == 0) && (i > 0)) {
2163 /* move to next desc.*/
2164 producer = get_next_index(producer, num_txd);
2165 hwdesc = &tx_ring->desc_head[producer];
2166 qlcnic_clear_cmddesc((u64 *)hwdesc);
2167 tx_ring->cmd_buf_arr[producer].skb = NULL;
2168 }
2169
2170 buffrag = &pbuf->frag_array[i];
2171
2172 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2173 switch (k) {
2174 case 0:
2175 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2176 break;
2177 case 1:
2178 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2179 break;
2180 case 2:
2181 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2182 break;
2183 case 3:
2184 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2185 break;
2186 }
2187 }
2188
2189 tx_ring->producer = get_next_index(producer, num_txd);
2190
2191 qlcnic_tso_check(netdev, tx_ring, first_desc, skb);
2192
2193 if (qlcnic_mac_learn)
2194 qlcnic_send_filter(adapter, tx_ring, first_desc, skb);
2195
2196 qlcnic_update_cmd_producer(adapter, tx_ring);
2197
2198 adapter->stats.txbytes += skb->len;
2199 adapter->stats.xmitcalled++;
2200
2201 return NETDEV_TX_OK;
2202
2203 drop_packet:
2204 adapter->stats.txdropped++;
2205 dev_kfree_skb_any(skb);
2206 return NETDEV_TX_OK;
2207 }
2208
2209 static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2210 {
2211 struct net_device *netdev = adapter->netdev;
2212 u32 temp, temp_state, temp_val;
2213 int rv = 0;
2214
2215 temp = QLCRD32(adapter, CRB_TEMP_STATE);
2216
2217 temp_state = qlcnic_get_temp_state(temp);
2218 temp_val = qlcnic_get_temp_val(temp);
2219
2220 if (temp_state == QLCNIC_TEMP_PANIC) {
2221 dev_err(&netdev->dev,
2222 "Device temperature %d degrees C exceeds"
2223 " maximum allowed. Hardware has been shut down.\n",
2224 temp_val);
2225 rv = 1;
2226 } else if (temp_state == QLCNIC_TEMP_WARN) {
2227 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
2228 dev_err(&netdev->dev,
2229 "Device temperature %d degrees C "
2230 "exceeds operating range."
2231 " Immediate action needed.\n",
2232 temp_val);
2233 }
2234 } else {
2235 if (adapter->temp == QLCNIC_TEMP_WARN) {
2236 dev_info(&netdev->dev,
2237 "Device temperature is now %d degrees C"
2238 " in normal range.\n", temp_val);
2239 }
2240 }
2241 adapter->temp = temp_state;
2242 return rv;
2243 }
2244
2245 void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
2246 {
2247 struct net_device *netdev = adapter->netdev;
2248
2249 if (adapter->ahw.linkup && !linkup) {
2250 netdev_info(netdev, "NIC Link is down\n");
2251 adapter->ahw.linkup = 0;
2252 if (netif_running(netdev)) {
2253 netif_carrier_off(netdev);
2254 netif_stop_queue(netdev);
2255 }
2256 } else if (!adapter->ahw.linkup && linkup) {
2257 netdev_info(netdev, "NIC Link is up\n");
2258 adapter->ahw.linkup = 1;
2259 if (netif_running(netdev)) {
2260 netif_carrier_on(netdev);
2261 netif_wake_queue(netdev);
2262 }
2263 }
2264 }
2265
2266 static void qlcnic_tx_timeout(struct net_device *netdev)
2267 {
2268 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2269
2270 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2271 return;
2272
2273 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2274
2275 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2276 adapter->need_fw_reset = 1;
2277 else
2278 adapter->reset_context = 1;
2279 }
2280
2281 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2282 {
2283 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2284 struct net_device_stats *stats = &netdev->stats;
2285
2286 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2287 stats->tx_packets = adapter->stats.xmitfinished;
2288 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2289 stats->tx_bytes = adapter->stats.txbytes;
2290 stats->rx_dropped = adapter->stats.rxdropped;
2291 stats->tx_dropped = adapter->stats.txdropped;
2292
2293 return stats;
2294 }
2295
2296 static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
2297 {
2298 u32 status;
2299
2300 status = readl(adapter->isr_int_vec);
2301
2302 if (!(status & adapter->int_vec_bit))
2303 return IRQ_NONE;
2304
2305 /* check interrupt state machine, to be sure */
2306 status = readl(adapter->crb_int_state_reg);
2307 if (!ISR_LEGACY_INT_TRIGGERED(status))
2308 return IRQ_NONE;
2309
2310 writel(0xffffffff, adapter->tgt_status_reg);
2311 /* read twice to ensure write is flushed */
2312 readl(adapter->isr_int_vec);
2313 readl(adapter->isr_int_vec);
2314
2315 return IRQ_HANDLED;
2316 }
2317
2318 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2319 {
2320 struct qlcnic_host_sds_ring *sds_ring = data;
2321 struct qlcnic_adapter *adapter = sds_ring->adapter;
2322
2323 if (adapter->flags & QLCNIC_MSIX_ENABLED)
2324 goto done;
2325 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2326 writel(0xffffffff, adapter->tgt_status_reg);
2327 goto done;
2328 }
2329
2330 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2331 return IRQ_NONE;
2332
2333 done:
2334 adapter->diag_cnt++;
2335 qlcnic_enable_int(sds_ring);
2336 return IRQ_HANDLED;
2337 }
2338
2339 static irqreturn_t qlcnic_intr(int irq, void *data)
2340 {
2341 struct qlcnic_host_sds_ring *sds_ring = data;
2342 struct qlcnic_adapter *adapter = sds_ring->adapter;
2343
2344 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2345 return IRQ_NONE;
2346
2347 napi_schedule(&sds_ring->napi);
2348
2349 return IRQ_HANDLED;
2350 }
2351
2352 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2353 {
2354 struct qlcnic_host_sds_ring *sds_ring = data;
2355 struct qlcnic_adapter *adapter = sds_ring->adapter;
2356
2357 /* clear interrupt */
2358 writel(0xffffffff, adapter->tgt_status_reg);
2359
2360 napi_schedule(&sds_ring->napi);
2361 return IRQ_HANDLED;
2362 }
2363
2364 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2365 {
2366 struct qlcnic_host_sds_ring *sds_ring = data;
2367
2368 napi_schedule(&sds_ring->napi);
2369 return IRQ_HANDLED;
2370 }
2371
2372 static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
2373 {
2374 u32 sw_consumer, hw_consumer;
2375 int count = 0, i;
2376 struct qlcnic_cmd_buffer *buffer;
2377 struct pci_dev *pdev = adapter->pdev;
2378 struct net_device *netdev = adapter->netdev;
2379 struct qlcnic_skb_frag *frag;
2380 int done;
2381 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2382
2383 if (!spin_trylock(&adapter->tx_clean_lock))
2384 return 1;
2385
2386 sw_consumer = tx_ring->sw_consumer;
2387 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2388
2389 while (sw_consumer != hw_consumer) {
2390 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
2391 if (buffer->skb) {
2392 frag = &buffer->frag_array[0];
2393 pci_unmap_single(pdev, frag->dma, frag->length,
2394 PCI_DMA_TODEVICE);
2395 frag->dma = 0ULL;
2396 for (i = 1; i < buffer->frag_count; i++) {
2397 frag++;
2398 pci_unmap_page(pdev, frag->dma, frag->length,
2399 PCI_DMA_TODEVICE);
2400 frag->dma = 0ULL;
2401 }
2402
2403 adapter->stats.xmitfinished++;
2404 dev_kfree_skb_any(buffer->skb);
2405 buffer->skb = NULL;
2406 }
2407
2408 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
2409 if (++count >= MAX_STATUS_HANDLE)
2410 break;
2411 }
2412
2413 if (count && netif_running(netdev)) {
2414 tx_ring->sw_consumer = sw_consumer;
2415
2416 smp_mb();
2417
2418 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
2419 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
2420 netif_wake_queue(netdev);
2421 adapter->stats.xmit_on++;
2422 }
2423 }
2424 adapter->tx_timeo_cnt = 0;
2425 }
2426 /*
2427 * If everything is freed up to consumer then check if the ring is full
2428 * If the ring is full then check if more needs to be freed and
2429 * schedule the call back again.
2430 *
2431 * This happens when there are 2 CPUs. One could be freeing and the
2432 * other filling it. If the ring is full when we get out of here and
2433 * the card has already interrupted the host then the host can miss the
2434 * interrupt.
2435 *
2436 * There is still a possible race condition and the host could miss an
2437 * interrupt. The card has to take care of this.
2438 */
2439 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2440 done = (sw_consumer == hw_consumer);
2441 spin_unlock(&adapter->tx_clean_lock);
2442
2443 return done;
2444 }
2445
2446 static int qlcnic_poll(struct napi_struct *napi, int budget)
2447 {
2448 struct qlcnic_host_sds_ring *sds_ring =
2449 container_of(napi, struct qlcnic_host_sds_ring, napi);
2450
2451 struct qlcnic_adapter *adapter = sds_ring->adapter;
2452
2453 int tx_complete;
2454 int work_done;
2455
2456 tx_complete = qlcnic_process_cmd_ring(adapter);
2457
2458 work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2459
2460 if ((work_done < budget) && tx_complete) {
2461 napi_complete(&sds_ring->napi);
2462 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2463 qlcnic_enable_int(sds_ring);
2464 }
2465
2466 return work_done;
2467 }
2468
2469 static int qlcnic_rx_poll(struct napi_struct *napi, int budget)
2470 {
2471 struct qlcnic_host_sds_ring *sds_ring =
2472 container_of(napi, struct qlcnic_host_sds_ring, napi);
2473
2474 struct qlcnic_adapter *adapter = sds_ring->adapter;
2475 int work_done;
2476
2477 work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2478
2479 if (work_done < budget) {
2480 napi_complete(&sds_ring->napi);
2481 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2482 qlcnic_enable_int(sds_ring);
2483 }
2484
2485 return work_done;
2486 }
2487
2488 #ifdef CONFIG_NET_POLL_CONTROLLER
2489 static void qlcnic_poll_controller(struct net_device *netdev)
2490 {
2491 int ring;
2492 struct qlcnic_host_sds_ring *sds_ring;
2493 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2494 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
2495
2496 disable_irq(adapter->irq);
2497 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2498 sds_ring = &recv_ctx->sds_rings[ring];
2499 qlcnic_intr(adapter->irq, sds_ring);
2500 }
2501 enable_irq(adapter->irq);
2502 }
2503 #endif
2504
2505 static void
2506 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2507 {
2508 u32 val;
2509
2510 val = adapter->portnum & 0xf;
2511 val |= encoding << 7;
2512 val |= (jiffies - adapter->dev_rst_time) << 8;
2513
2514 QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2515 adapter->dev_rst_time = jiffies;
2516 }
2517
2518 static int
2519 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2520 {
2521 u32 val;
2522
2523 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2524 state != QLCNIC_DEV_NEED_QUISCENT);
2525
2526 if (qlcnic_api_lock(adapter))
2527 return -EIO;
2528
2529 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2530
2531 if (state == QLCNIC_DEV_NEED_RESET)
2532 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2533 else if (state == QLCNIC_DEV_NEED_QUISCENT)
2534 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2535
2536 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2537
2538 qlcnic_api_unlock(adapter);
2539
2540 return 0;
2541 }
2542
2543 static int
2544 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2545 {
2546 u32 val;
2547
2548 if (qlcnic_api_lock(adapter))
2549 return -EBUSY;
2550
2551 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2552 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2553 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2554
2555 qlcnic_api_unlock(adapter);
2556
2557 return 0;
2558 }
2559
2560 static void
2561 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2562 {
2563 u32 val;
2564
2565 if (qlcnic_api_lock(adapter))
2566 goto err;
2567
2568 val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2569 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2570 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2571
2572 if (failed) {
2573 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
2574 dev_info(&adapter->pdev->dev,
2575 "Device state set to Failed. Please Reboot\n");
2576 } else if (!(val & 0x11111111))
2577 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
2578
2579 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2580 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2581 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2582
2583 qlcnic_api_unlock(adapter);
2584 err:
2585 adapter->fw_fail_cnt = 0;
2586 clear_bit(__QLCNIC_START_FW, &adapter->state);
2587 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2588 }
2589
2590 /* Grab api lock, before checking state */
2591 static int
2592 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2593 {
2594 int act, state;
2595
2596 state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2597 act = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2598
2599 if (((state & 0x11111111) == (act & 0x11111111)) ||
2600 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2601 return 0;
2602 else
2603 return 1;
2604 }
2605
2606 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2607 {
2608 u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2609
2610 if (val != QLCNIC_DRV_IDC_VER) {
2611 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2612 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2613 }
2614
2615 return 0;
2616 }
2617
2618 static int
2619 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2620 {
2621 u32 val, prev_state;
2622 u8 dev_init_timeo = adapter->dev_init_timeo;
2623 u8 portnum = adapter->portnum;
2624 u8 ret;
2625
2626 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2627 return 1;
2628
2629 if (qlcnic_api_lock(adapter))
2630 return -1;
2631
2632 val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2633 if (!(val & (1 << (portnum * 4)))) {
2634 QLC_DEV_SET_REF_CNT(val, portnum);
2635 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2636 }
2637
2638 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2639 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2640
2641 switch (prev_state) {
2642 case QLCNIC_DEV_COLD:
2643 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
2644 QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER);
2645 qlcnic_idc_debug_info(adapter, 0);
2646 qlcnic_api_unlock(adapter);
2647 return 1;
2648
2649 case QLCNIC_DEV_READY:
2650 ret = qlcnic_check_idc_ver(adapter);
2651 qlcnic_api_unlock(adapter);
2652 return ret;
2653
2654 case QLCNIC_DEV_NEED_RESET:
2655 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2656 QLC_DEV_SET_RST_RDY(val, portnum);
2657 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2658 break;
2659
2660 case QLCNIC_DEV_NEED_QUISCENT:
2661 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2662 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2663 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2664 break;
2665
2666 case QLCNIC_DEV_FAILED:
2667 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2668 qlcnic_api_unlock(adapter);
2669 return -1;
2670
2671 case QLCNIC_DEV_INITIALIZING:
2672 case QLCNIC_DEV_QUISCENT:
2673 break;
2674 }
2675
2676 qlcnic_api_unlock(adapter);
2677
2678 do {
2679 msleep(1000);
2680 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2681
2682 if (prev_state == QLCNIC_DEV_QUISCENT)
2683 continue;
2684 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2685
2686 if (!dev_init_timeo) {
2687 dev_err(&adapter->pdev->dev,
2688 "Waiting for device to initialize timeout\n");
2689 return -1;
2690 }
2691
2692 if (qlcnic_api_lock(adapter))
2693 return -1;
2694
2695 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2696 QLC_DEV_CLR_RST_QSCNT(val, portnum);
2697 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2698
2699 ret = qlcnic_check_idc_ver(adapter);
2700 qlcnic_api_unlock(adapter);
2701
2702 return ret;
2703 }
2704
2705 static void
2706 qlcnic_fwinit_work(struct work_struct *work)
2707 {
2708 struct qlcnic_adapter *adapter = container_of(work,
2709 struct qlcnic_adapter, fw_work.work);
2710 u32 dev_state = 0xf;
2711
2712 if (qlcnic_api_lock(adapter))
2713 goto err_ret;
2714
2715 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2716 if (dev_state == QLCNIC_DEV_QUISCENT ||
2717 dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2718 qlcnic_api_unlock(adapter);
2719 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2720 FW_POLL_DELAY * 2);
2721 return;
2722 }
2723
2724 if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
2725 qlcnic_api_unlock(adapter);
2726 goto wait_npar;
2727 }
2728
2729 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2730 dev_err(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2731 adapter->reset_ack_timeo);
2732 goto skip_ack_check;
2733 }
2734
2735 if (!qlcnic_check_drv_state(adapter)) {
2736 skip_ack_check:
2737 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2738
2739 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2740 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2741 QLCNIC_DEV_INITIALIZING);
2742 set_bit(__QLCNIC_START_FW, &adapter->state);
2743 QLCDB(adapter, DRV, "Restarting fw\n");
2744 qlcnic_idc_debug_info(adapter, 0);
2745 }
2746
2747 qlcnic_api_unlock(adapter);
2748
2749 if (!adapter->nic_ops->start_firmware(adapter)) {
2750 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2751 adapter->fw_wait_cnt = 0;
2752 return;
2753 }
2754 goto err_ret;
2755 }
2756
2757 qlcnic_api_unlock(adapter);
2758
2759 wait_npar:
2760 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2761 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2762
2763 switch (dev_state) {
2764 case QLCNIC_DEV_READY:
2765 if (!adapter->nic_ops->start_firmware(adapter)) {
2766 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2767 adapter->fw_wait_cnt = 0;
2768 return;
2769 }
2770 case QLCNIC_DEV_FAILED:
2771 break;
2772 default:
2773 qlcnic_schedule_work(adapter,
2774 qlcnic_fwinit_work, FW_POLL_DELAY);
2775 return;
2776 }
2777
2778 err_ret:
2779 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2780 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2781 netif_device_attach(adapter->netdev);
2782 qlcnic_clr_all_drv_state(adapter, 0);
2783 }
2784
2785 static void
2786 qlcnic_detach_work(struct work_struct *work)
2787 {
2788 struct qlcnic_adapter *adapter = container_of(work,
2789 struct qlcnic_adapter, fw_work.work);
2790 struct net_device *netdev = adapter->netdev;
2791 u32 status;
2792
2793 netif_device_detach(netdev);
2794
2795 /* Dont grab rtnl lock during Quiscent mode */
2796 if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2797 if (netif_running(netdev))
2798 __qlcnic_down(adapter, netdev);
2799 } else
2800 qlcnic_down(adapter, netdev);
2801
2802 status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2803
2804 if (status & QLCNIC_RCODE_FATAL_ERROR)
2805 goto err_ret;
2806
2807 if (adapter->temp == QLCNIC_TEMP_PANIC)
2808 goto err_ret;
2809
2810 if (qlcnic_set_drv_state(adapter, adapter->dev_state))
2811 goto err_ret;
2812
2813 adapter->fw_wait_cnt = 0;
2814
2815 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2816
2817 return;
2818
2819 err_ret:
2820 dev_err(&adapter->pdev->dev, "detach failed; status=%d temp=%d\n",
2821 status, adapter->temp);
2822 netif_device_attach(netdev);
2823 qlcnic_clr_all_drv_state(adapter, 1);
2824 }
2825
2826 /*Transit NPAR state to NON Operational */
2827 static void
2828 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2829 {
2830 u32 state;
2831
2832 state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2833 if (state == QLCNIC_DEV_NPAR_NON_OPER)
2834 return;
2835
2836 if (qlcnic_api_lock(adapter))
2837 return;
2838 QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2839 qlcnic_api_unlock(adapter);
2840 }
2841
2842 /*Transit to RESET state from READY state only */
2843 static void
2844 qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
2845 {
2846 u32 state;
2847
2848 adapter->need_fw_reset = 1;
2849 if (qlcnic_api_lock(adapter))
2850 return;
2851
2852 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2853
2854 if (state == QLCNIC_DEV_READY) {
2855 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
2856 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2857 qlcnic_idc_debug_info(adapter, 0);
2858 }
2859
2860 QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2861 qlcnic_api_unlock(adapter);
2862 }
2863
2864 /* Transit to NPAR READY state from NPAR NOT READY state */
2865 static void
2866 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2867 {
2868 if (qlcnic_api_lock(adapter))
2869 return;
2870
2871 QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_OPER);
2872 QLCDB(adapter, DRV, "NPAR operational state set\n");
2873
2874 qlcnic_api_unlock(adapter);
2875 }
2876
2877 static void
2878 qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2879 work_func_t func, int delay)
2880 {
2881 if (test_bit(__QLCNIC_AER, &adapter->state))
2882 return;
2883
2884 INIT_DELAYED_WORK(&adapter->fw_work, func);
2885 queue_delayed_work(qlcnic_wq, &adapter->fw_work,
2886 round_jiffies_relative(delay));
2887 }
2888
2889 static void
2890 qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
2891 {
2892 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2893 msleep(10);
2894
2895 cancel_delayed_work_sync(&adapter->fw_work);
2896 }
2897
2898 static void
2899 qlcnic_attach_work(struct work_struct *work)
2900 {
2901 struct qlcnic_adapter *adapter = container_of(work,
2902 struct qlcnic_adapter, fw_work.work);
2903 struct net_device *netdev = adapter->netdev;
2904 u32 npar_state;
2905
2906 if (adapter->op_mode != QLCNIC_MGMT_FUNC) {
2907 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2908 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2909 qlcnic_clr_all_drv_state(adapter, 0);
2910 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2911 qlcnic_schedule_work(adapter, qlcnic_attach_work,
2912 FW_POLL_DELAY);
2913 else
2914 goto attach;
2915 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2916 return;
2917 }
2918 attach:
2919 if (netif_running(netdev)) {
2920 if (qlcnic_up(adapter, netdev))
2921 goto done;
2922
2923 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2924 }
2925
2926 done:
2927 netif_device_attach(netdev);
2928 adapter->fw_fail_cnt = 0;
2929 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2930
2931 if (!qlcnic_clr_drv_state(adapter))
2932 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2933 FW_POLL_DELAY);
2934 }
2935
2936 static int
2937 qlcnic_check_health(struct qlcnic_adapter *adapter)
2938 {
2939 u32 state = 0, heartbeat;
2940 struct net_device *netdev = adapter->netdev;
2941
2942 if (qlcnic_check_temp(adapter))
2943 goto detach;
2944
2945 if (adapter->need_fw_reset)
2946 qlcnic_dev_request_reset(adapter);
2947
2948 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2949 if (state == QLCNIC_DEV_NEED_RESET) {
2950 qlcnic_set_npar_non_operational(adapter);
2951 adapter->need_fw_reset = 1;
2952 } else if (state == QLCNIC_DEV_NEED_QUISCENT)
2953 goto detach;
2954
2955 heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2956 if (heartbeat != adapter->heartbeat) {
2957 adapter->heartbeat = heartbeat;
2958 adapter->fw_fail_cnt = 0;
2959 if (adapter->need_fw_reset)
2960 goto detach;
2961
2962 if (adapter->reset_context &&
2963 auto_fw_reset == AUTO_FW_RESET_ENABLED) {
2964 qlcnic_reset_hw_context(adapter);
2965 adapter->netdev->trans_start = jiffies;
2966 }
2967
2968 return 0;
2969 }
2970
2971 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2972 return 0;
2973
2974 qlcnic_dev_request_reset(adapter);
2975
2976 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED))
2977 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2978
2979 dev_info(&netdev->dev, "firmware hang detected\n");
2980
2981 detach:
2982 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
2983 QLCNIC_DEV_NEED_RESET;
2984
2985 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2986 !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) {
2987
2988 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
2989 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
2990 }
2991
2992 return 1;
2993 }
2994
2995 static void
2996 qlcnic_fw_poll_work(struct work_struct *work)
2997 {
2998 struct qlcnic_adapter *adapter = container_of(work,
2999 struct qlcnic_adapter, fw_work.work);
3000
3001 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3002 goto reschedule;
3003
3004
3005 if (qlcnic_check_health(adapter))
3006 return;
3007
3008 if (adapter->fhash.fnum)
3009 qlcnic_prune_lb_filters(adapter);
3010
3011 reschedule:
3012 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3013 }
3014
3015 static int qlcnic_is_first_func(struct pci_dev *pdev)
3016 {
3017 struct pci_dev *oth_pdev;
3018 int val = pdev->devfn;
3019
3020 while (val-- > 0) {
3021 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3022 (pdev->bus), pdev->bus->number,
3023 PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3024 if (!oth_pdev)
3025 continue;
3026
3027 if (oth_pdev->current_state != PCI_D3cold) {
3028 pci_dev_put(oth_pdev);
3029 return 0;
3030 }
3031 pci_dev_put(oth_pdev);
3032 }
3033 return 1;
3034 }
3035
3036 static int qlcnic_attach_func(struct pci_dev *pdev)
3037 {
3038 int err, first_func;
3039 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3040 struct net_device *netdev = adapter->netdev;
3041
3042 pdev->error_state = pci_channel_io_normal;
3043
3044 err = pci_enable_device(pdev);
3045 if (err)
3046 return err;
3047
3048 pci_set_power_state(pdev, PCI_D0);
3049 pci_set_master(pdev);
3050 pci_restore_state(pdev);
3051
3052 first_func = qlcnic_is_first_func(pdev);
3053
3054 if (qlcnic_api_lock(adapter))
3055 return -EINVAL;
3056
3057 if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3058 adapter->need_fw_reset = 1;
3059 set_bit(__QLCNIC_START_FW, &adapter->state);
3060 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
3061 QLCDB(adapter, DRV, "Restarting fw\n");
3062 }
3063 qlcnic_api_unlock(adapter);
3064
3065 err = adapter->nic_ops->start_firmware(adapter);
3066 if (err)
3067 return err;
3068
3069 qlcnic_clr_drv_state(adapter);
3070 qlcnic_setup_intr(adapter);
3071
3072 if (netif_running(netdev)) {
3073 err = qlcnic_attach(adapter);
3074 if (err) {
3075 qlcnic_clr_all_drv_state(adapter, 1);
3076 clear_bit(__QLCNIC_AER, &adapter->state);
3077 netif_device_attach(netdev);
3078 return err;
3079 }
3080
3081 err = qlcnic_up(adapter, netdev);
3082 if (err)
3083 goto done;
3084
3085 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3086 }
3087 done:
3088 netif_device_attach(netdev);
3089 return err;
3090 }
3091
3092 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3093 pci_channel_state_t state)
3094 {
3095 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3096 struct net_device *netdev = adapter->netdev;
3097
3098 if (state == pci_channel_io_perm_failure)
3099 return PCI_ERS_RESULT_DISCONNECT;
3100
3101 if (state == pci_channel_io_normal)
3102 return PCI_ERS_RESULT_RECOVERED;
3103
3104 set_bit(__QLCNIC_AER, &adapter->state);
3105 netif_device_detach(netdev);
3106
3107 cancel_delayed_work_sync(&adapter->fw_work);
3108
3109 if (netif_running(netdev))
3110 qlcnic_down(adapter, netdev);
3111
3112 qlcnic_detach(adapter);
3113 qlcnic_teardown_intr(adapter);
3114
3115 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3116
3117 pci_save_state(pdev);
3118 pci_disable_device(pdev);
3119
3120 return PCI_ERS_RESULT_NEED_RESET;
3121 }
3122
3123 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3124 {
3125 return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3126 PCI_ERS_RESULT_RECOVERED;
3127 }
3128
3129 static void qlcnic_io_resume(struct pci_dev *pdev)
3130 {
3131 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3132
3133 pci_cleanup_aer_uncorrect_error_status(pdev);
3134
3135 if (QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) == QLCNIC_DEV_READY &&
3136 test_and_clear_bit(__QLCNIC_AER, &adapter->state))
3137 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3138 FW_POLL_DELAY);
3139 }
3140
3141 static int
3142 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3143 {
3144 int err;
3145
3146 err = qlcnic_can_start_firmware(adapter);
3147 if (err)
3148 return err;
3149
3150 err = qlcnic_check_npar_opertional(adapter);
3151 if (err)
3152 return err;
3153
3154 err = qlcnic_initialize_nic(adapter);
3155 if (err)
3156 return err;
3157
3158 qlcnic_check_options(adapter);
3159
3160 err = qlcnic_set_eswitch_port_config(adapter);
3161 if (err)
3162 return err;
3163
3164 adapter->need_fw_reset = 0;
3165
3166 return err;
3167 }
3168
3169 static int
3170 qlcnicvf_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
3171 {
3172 return -EOPNOTSUPP;
3173 }
3174
3175 static int
3176 qlcnicvf_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
3177 {
3178 return -EOPNOTSUPP;
3179 }
3180
3181 static ssize_t
3182 qlcnic_store_bridged_mode(struct device *dev,
3183 struct device_attribute *attr, const char *buf, size_t len)
3184 {
3185 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3186 unsigned long new;
3187 int ret = -EINVAL;
3188
3189 if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
3190 goto err_out;
3191
3192 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3193 goto err_out;
3194
3195 if (strict_strtoul(buf, 2, &new))
3196 goto err_out;
3197
3198 if (!adapter->nic_ops->config_bridged_mode(adapter, !!new))
3199 ret = len;
3200
3201 err_out:
3202 return ret;
3203 }
3204
3205 static ssize_t
3206 qlcnic_show_bridged_mode(struct device *dev,
3207 struct device_attribute *attr, char *buf)
3208 {
3209 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3210 int bridged_mode = 0;
3211
3212 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3213 bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
3214
3215 return sprintf(buf, "%d\n", bridged_mode);
3216 }
3217
3218 static struct device_attribute dev_attr_bridged_mode = {
3219 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
3220 .show = qlcnic_show_bridged_mode,
3221 .store = qlcnic_store_bridged_mode,
3222 };
3223
3224 static ssize_t
3225 qlcnic_store_diag_mode(struct device *dev,
3226 struct device_attribute *attr, const char *buf, size_t len)
3227 {
3228 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3229 unsigned long new;
3230
3231 if (strict_strtoul(buf, 2, &new))
3232 return -EINVAL;
3233
3234 if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
3235 adapter->flags ^= QLCNIC_DIAG_ENABLED;
3236
3237 return len;
3238 }
3239
3240 static ssize_t
3241 qlcnic_show_diag_mode(struct device *dev,
3242 struct device_attribute *attr, char *buf)
3243 {
3244 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3245
3246 return sprintf(buf, "%d\n",
3247 !!(adapter->flags & QLCNIC_DIAG_ENABLED));
3248 }
3249
3250 static struct device_attribute dev_attr_diag_mode = {
3251 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
3252 .show = qlcnic_show_diag_mode,
3253 .store = qlcnic_store_diag_mode,
3254 };
3255
3256 static int
3257 qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
3258 loff_t offset, size_t size)
3259 {
3260 size_t crb_size = 4;
3261
3262 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3263 return -EIO;
3264
3265 if (offset < QLCNIC_PCI_CRBSPACE) {
3266 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM,
3267 QLCNIC_PCI_CAMQM_END))
3268 crb_size = 8;
3269 else
3270 return -EINVAL;
3271 }
3272
3273 if ((size != crb_size) || (offset & (crb_size-1)))
3274 return -EINVAL;
3275
3276 return 0;
3277 }
3278
3279 static ssize_t
3280 qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj,
3281 struct bin_attribute *attr,
3282 char *buf, loff_t offset, size_t size)
3283 {
3284 struct device *dev = container_of(kobj, struct device, kobj);
3285 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3286 u32 data;
3287 u64 qmdata;
3288 int ret;
3289
3290 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3291 if (ret != 0)
3292 return ret;
3293
3294 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3295 qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
3296 memcpy(buf, &qmdata, size);
3297 } else {
3298 data = QLCRD32(adapter, offset);
3299 memcpy(buf, &data, size);
3300 }
3301 return size;
3302 }
3303
3304 static ssize_t
3305 qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj,
3306 struct bin_attribute *attr,
3307 char *buf, loff_t offset, size_t size)
3308 {
3309 struct device *dev = container_of(kobj, struct device, kobj);
3310 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3311 u32 data;
3312 u64 qmdata;
3313 int ret;
3314
3315 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3316 if (ret != 0)
3317 return ret;
3318
3319 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3320 memcpy(&qmdata, buf, size);
3321 qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
3322 } else {
3323 memcpy(&data, buf, size);
3324 QLCWR32(adapter, offset, data);
3325 }
3326 return size;
3327 }
3328
3329 static int
3330 qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
3331 loff_t offset, size_t size)
3332 {
3333 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3334 return -EIO;
3335
3336 if ((size != 8) || (offset & 0x7))
3337 return -EIO;
3338
3339 return 0;
3340 }
3341
3342 static ssize_t
3343 qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj,
3344 struct bin_attribute *attr,
3345 char *buf, loff_t offset, size_t size)
3346 {
3347 struct device *dev = container_of(kobj, struct device, kobj);
3348 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3349 u64 data;
3350 int ret;
3351
3352 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3353 if (ret != 0)
3354 return ret;
3355
3356 if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
3357 return -EIO;
3358
3359 memcpy(buf, &data, size);
3360
3361 return size;
3362 }
3363
3364 static ssize_t
3365 qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj,
3366 struct bin_attribute *attr,
3367 char *buf, loff_t offset, size_t size)
3368 {
3369 struct device *dev = container_of(kobj, struct device, kobj);
3370 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3371 u64 data;
3372 int ret;
3373
3374 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3375 if (ret != 0)
3376 return ret;
3377
3378 memcpy(&data, buf, size);
3379
3380 if (qlcnic_pci_mem_write_2M(adapter, offset, data))
3381 return -EIO;
3382
3383 return size;
3384 }
3385
3386
3387 static struct bin_attribute bin_attr_crb = {
3388 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
3389 .size = 0,
3390 .read = qlcnic_sysfs_read_crb,
3391 .write = qlcnic_sysfs_write_crb,
3392 };
3393
3394 static struct bin_attribute bin_attr_mem = {
3395 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
3396 .size = 0,
3397 .read = qlcnic_sysfs_read_mem,
3398 .write = qlcnic_sysfs_write_mem,
3399 };
3400
3401 static int
3402 validate_pm_config(struct qlcnic_adapter *adapter,
3403 struct qlcnic_pm_func_cfg *pm_cfg, int count)
3404 {
3405
3406 u8 src_pci_func, s_esw_id, d_esw_id;
3407 u8 dest_pci_func;
3408 int i;
3409
3410 for (i = 0; i < count; i++) {
3411 src_pci_func = pm_cfg[i].pci_func;
3412 dest_pci_func = pm_cfg[i].dest_npar;
3413 if (src_pci_func >= QLCNIC_MAX_PCI_FUNC
3414 || dest_pci_func >= QLCNIC_MAX_PCI_FUNC)
3415 return QL_STATUS_INVALID_PARAM;
3416
3417 if (adapter->npars[src_pci_func].type != QLCNIC_TYPE_NIC)
3418 return QL_STATUS_INVALID_PARAM;
3419
3420 if (adapter->npars[dest_pci_func].type != QLCNIC_TYPE_NIC)
3421 return QL_STATUS_INVALID_PARAM;
3422
3423 s_esw_id = adapter->npars[src_pci_func].phy_port;
3424 d_esw_id = adapter->npars[dest_pci_func].phy_port;
3425
3426 if (s_esw_id != d_esw_id)
3427 return QL_STATUS_INVALID_PARAM;
3428
3429 }
3430 return 0;
3431
3432 }
3433
3434 static ssize_t
3435 qlcnic_sysfs_write_pm_config(struct file *filp, struct kobject *kobj,
3436 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3437 {
3438 struct device *dev = container_of(kobj, struct device, kobj);
3439 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3440 struct qlcnic_pm_func_cfg *pm_cfg;
3441 u32 id, action, pci_func;
3442 int count, rem, i, ret;
3443
3444 count = size / sizeof(struct qlcnic_pm_func_cfg);
3445 rem = size % sizeof(struct qlcnic_pm_func_cfg);
3446 if (rem)
3447 return QL_STATUS_INVALID_PARAM;
3448
3449 pm_cfg = (struct qlcnic_pm_func_cfg *) buf;
3450
3451 ret = validate_pm_config(adapter, pm_cfg, count);
3452 if (ret)
3453 return ret;
3454 for (i = 0; i < count; i++) {
3455 pci_func = pm_cfg[i].pci_func;
3456 action = !!pm_cfg[i].action;
3457 id = adapter->npars[pci_func].phy_port;
3458 ret = qlcnic_config_port_mirroring(adapter, id,
3459 action, pci_func);
3460 if (ret)
3461 return ret;
3462 }
3463
3464 for (i = 0; i < count; i++) {
3465 pci_func = pm_cfg[i].pci_func;
3466 id = adapter->npars[pci_func].phy_port;
3467 adapter->npars[pci_func].enable_pm = !!pm_cfg[i].action;
3468 adapter->npars[pci_func].dest_npar = id;
3469 }
3470 return size;
3471 }
3472
3473 static ssize_t
3474 qlcnic_sysfs_read_pm_config(struct file *filp, struct kobject *kobj,
3475 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3476 {
3477 struct device *dev = container_of(kobj, struct device, kobj);
3478 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3479 struct qlcnic_pm_func_cfg pm_cfg[QLCNIC_MAX_PCI_FUNC];
3480 int i;
3481
3482 if (size != sizeof(pm_cfg))
3483 return QL_STATUS_INVALID_PARAM;
3484
3485 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3486 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3487 continue;
3488 pm_cfg[i].action = adapter->npars[i].enable_pm;
3489 pm_cfg[i].dest_npar = 0;
3490 pm_cfg[i].pci_func = i;
3491 }
3492 memcpy(buf, &pm_cfg, size);
3493
3494 return size;
3495 }
3496
3497 static int
3498 validate_esw_config(struct qlcnic_adapter *adapter,
3499 struct qlcnic_esw_func_cfg *esw_cfg, int count)
3500 {
3501 u32 op_mode;
3502 u8 pci_func;
3503 int i;
3504
3505 op_mode = readl(adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE);
3506
3507 for (i = 0; i < count; i++) {
3508 pci_func = esw_cfg[i].pci_func;
3509 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3510 return QL_STATUS_INVALID_PARAM;
3511
3512 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3513 if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3514 return QL_STATUS_INVALID_PARAM;
3515
3516 switch (esw_cfg[i].op_mode) {
3517 case QLCNIC_PORT_DEFAULTS:
3518 if (QLC_DEV_GET_DRV(op_mode, pci_func) !=
3519 QLCNIC_NON_PRIV_FUNC) {
3520 if (esw_cfg[i].mac_anti_spoof != 0)
3521 return QL_STATUS_INVALID_PARAM;
3522 if (esw_cfg[i].mac_override != 1)
3523 return QL_STATUS_INVALID_PARAM;
3524 if (esw_cfg[i].promisc_mode != 1)
3525 return QL_STATUS_INVALID_PARAM;
3526 }
3527 break;
3528 case QLCNIC_ADD_VLAN:
3529 if (!IS_VALID_VLAN(esw_cfg[i].vlan_id))
3530 return QL_STATUS_INVALID_PARAM;
3531 if (!esw_cfg[i].op_type)
3532 return QL_STATUS_INVALID_PARAM;
3533 break;
3534 case QLCNIC_DEL_VLAN:
3535 if (!esw_cfg[i].op_type)
3536 return QL_STATUS_INVALID_PARAM;
3537 break;
3538 default:
3539 return QL_STATUS_INVALID_PARAM;
3540 }
3541 }
3542 return 0;
3543 }
3544
3545 static ssize_t
3546 qlcnic_sysfs_write_esw_config(struct file *file, struct kobject *kobj,
3547 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3548 {
3549 struct device *dev = container_of(kobj, struct device, kobj);
3550 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3551 struct qlcnic_esw_func_cfg *esw_cfg;
3552 struct qlcnic_npar_info *npar;
3553 int count, rem, i, ret;
3554 u8 pci_func, op_mode = 0;
3555
3556 count = size / sizeof(struct qlcnic_esw_func_cfg);
3557 rem = size % sizeof(struct qlcnic_esw_func_cfg);
3558 if (rem)
3559 return QL_STATUS_INVALID_PARAM;
3560
3561 esw_cfg = (struct qlcnic_esw_func_cfg *) buf;
3562 ret = validate_esw_config(adapter, esw_cfg, count);
3563 if (ret)
3564 return ret;
3565
3566 for (i = 0; i < count; i++) {
3567 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3568 if (qlcnic_config_switch_port(adapter, &esw_cfg[i]))
3569 return QL_STATUS_INVALID_PARAM;
3570
3571 if (adapter->ahw.pci_func != esw_cfg[i].pci_func)
3572 continue;
3573
3574 op_mode = esw_cfg[i].op_mode;
3575 qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]);
3576 esw_cfg[i].op_mode = op_mode;
3577 esw_cfg[i].pci_func = adapter->ahw.pci_func;
3578
3579 switch (esw_cfg[i].op_mode) {
3580 case QLCNIC_PORT_DEFAULTS:
3581 qlcnic_set_eswitch_port_features(adapter, &esw_cfg[i]);
3582 break;
3583 case QLCNIC_ADD_VLAN:
3584 qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3585 break;
3586 case QLCNIC_DEL_VLAN:
3587 esw_cfg[i].vlan_id = 0;
3588 qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3589 break;
3590 }
3591 }
3592
3593 if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3594 goto out;
3595
3596 for (i = 0; i < count; i++) {
3597 pci_func = esw_cfg[i].pci_func;
3598 npar = &adapter->npars[pci_func];
3599 switch (esw_cfg[i].op_mode) {
3600 case QLCNIC_PORT_DEFAULTS:
3601 npar->promisc_mode = esw_cfg[i].promisc_mode;
3602 npar->mac_override = esw_cfg[i].mac_override;
3603 npar->offload_flags = esw_cfg[i].offload_flags;
3604 npar->mac_anti_spoof = esw_cfg[i].mac_anti_spoof;
3605 npar->discard_tagged = esw_cfg[i].discard_tagged;
3606 break;
3607 case QLCNIC_ADD_VLAN:
3608 npar->pvid = esw_cfg[i].vlan_id;
3609 break;
3610 case QLCNIC_DEL_VLAN:
3611 npar->pvid = 0;
3612 break;
3613 }
3614 }
3615 out:
3616 return size;
3617 }
3618
3619 static ssize_t
3620 qlcnic_sysfs_read_esw_config(struct file *file, struct kobject *kobj,
3621 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3622 {
3623 struct device *dev = container_of(kobj, struct device, kobj);
3624 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3625 struct qlcnic_esw_func_cfg esw_cfg[QLCNIC_MAX_PCI_FUNC];
3626 u8 i;
3627
3628 if (size != sizeof(esw_cfg))
3629 return QL_STATUS_INVALID_PARAM;
3630
3631 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3632 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3633 continue;
3634 esw_cfg[i].pci_func = i;
3635 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]))
3636 return QL_STATUS_INVALID_PARAM;
3637 }
3638 memcpy(buf, &esw_cfg, size);
3639
3640 return size;
3641 }
3642
3643 static int
3644 validate_npar_config(struct qlcnic_adapter *adapter,
3645 struct qlcnic_npar_func_cfg *np_cfg, int count)
3646 {
3647 u8 pci_func, i;
3648
3649 for (i = 0; i < count; i++) {
3650 pci_func = np_cfg[i].pci_func;
3651 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3652 return QL_STATUS_INVALID_PARAM;
3653
3654 if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3655 return QL_STATUS_INVALID_PARAM;
3656
3657 if (!IS_VALID_BW(np_cfg[i].min_bw)
3658 || !IS_VALID_BW(np_cfg[i].max_bw)
3659 || !IS_VALID_RX_QUEUES(np_cfg[i].max_rx_queues)
3660 || !IS_VALID_TX_QUEUES(np_cfg[i].max_tx_queues))
3661 return QL_STATUS_INVALID_PARAM;
3662 }
3663 return 0;
3664 }
3665
3666 static ssize_t
3667 qlcnic_sysfs_write_npar_config(struct file *file, struct kobject *kobj,
3668 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3669 {
3670 struct device *dev = container_of(kobj, struct device, kobj);
3671 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3672 struct qlcnic_info nic_info;
3673 struct qlcnic_npar_func_cfg *np_cfg;
3674 int i, count, rem, ret;
3675 u8 pci_func;
3676
3677 count = size / sizeof(struct qlcnic_npar_func_cfg);
3678 rem = size % sizeof(struct qlcnic_npar_func_cfg);
3679 if (rem)
3680 return QL_STATUS_INVALID_PARAM;
3681
3682 np_cfg = (struct qlcnic_npar_func_cfg *) buf;
3683 ret = validate_npar_config(adapter, np_cfg, count);
3684 if (ret)
3685 return ret;
3686
3687 for (i = 0; i < count ; i++) {
3688 pci_func = np_cfg[i].pci_func;
3689 ret = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
3690 if (ret)
3691 return ret;
3692 nic_info.pci_func = pci_func;
3693 nic_info.min_tx_bw = np_cfg[i].min_bw;
3694 nic_info.max_tx_bw = np_cfg[i].max_bw;
3695 ret = qlcnic_set_nic_info(adapter, &nic_info);
3696 if (ret)
3697 return ret;
3698 adapter->npars[i].min_bw = nic_info.min_tx_bw;
3699 adapter->npars[i].max_bw = nic_info.max_tx_bw;
3700 }
3701
3702 return size;
3703
3704 }
3705 static ssize_t
3706 qlcnic_sysfs_read_npar_config(struct file *file, struct kobject *kobj,
3707 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3708 {
3709 struct device *dev = container_of(kobj, struct device, kobj);
3710 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3711 struct qlcnic_info nic_info;
3712 struct qlcnic_npar_func_cfg np_cfg[QLCNIC_MAX_PCI_FUNC];
3713 int i, ret;
3714
3715 if (size != sizeof(np_cfg))
3716 return QL_STATUS_INVALID_PARAM;
3717
3718 for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3719 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3720 continue;
3721 ret = qlcnic_get_nic_info(adapter, &nic_info, i);
3722 if (ret)
3723 return ret;
3724
3725 np_cfg[i].pci_func = i;
3726 np_cfg[i].op_mode = (u8)nic_info.op_mode;
3727 np_cfg[i].port_num = nic_info.phys_port;
3728 np_cfg[i].fw_capab = nic_info.capabilities;
3729 np_cfg[i].min_bw = nic_info.min_tx_bw ;
3730 np_cfg[i].max_bw = nic_info.max_tx_bw;
3731 np_cfg[i].max_tx_queues = nic_info.max_tx_ques;
3732 np_cfg[i].max_rx_queues = nic_info.max_rx_ques;
3733 }
3734 memcpy(buf, &np_cfg, size);
3735 return size;
3736 }
3737
3738 static ssize_t
3739 qlcnic_sysfs_get_port_stats(struct file *file, struct kobject *kobj,
3740 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3741 {
3742 struct device *dev = container_of(kobj, struct device, kobj);
3743 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3744 struct qlcnic_esw_statistics port_stats;
3745 int ret;
3746
3747 if (size != sizeof(struct qlcnic_esw_statistics))
3748 return QL_STATUS_INVALID_PARAM;
3749
3750 if (offset >= QLCNIC_MAX_PCI_FUNC)
3751 return QL_STATUS_INVALID_PARAM;
3752
3753 memset(&port_stats, 0, size);
3754 ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3755 &port_stats.rx);
3756 if (ret)
3757 return ret;
3758
3759 ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3760 &port_stats.tx);
3761 if (ret)
3762 return ret;
3763
3764 memcpy(buf, &port_stats, size);
3765 return size;
3766 }
3767
3768 static ssize_t
3769 qlcnic_sysfs_get_esw_stats(struct file *file, struct kobject *kobj,
3770 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3771 {
3772 struct device *dev = container_of(kobj, struct device, kobj);
3773 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3774 struct qlcnic_esw_statistics esw_stats;
3775 int ret;
3776
3777 if (size != sizeof(struct qlcnic_esw_statistics))
3778 return QL_STATUS_INVALID_PARAM;
3779
3780 if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3781 return QL_STATUS_INVALID_PARAM;
3782
3783 memset(&esw_stats, 0, size);
3784 ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3785 &esw_stats.rx);
3786 if (ret)
3787 return ret;
3788
3789 ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3790 &esw_stats.tx);
3791 if (ret)
3792 return ret;
3793
3794 memcpy(buf, &esw_stats, size);
3795 return size;
3796 }
3797
3798 static ssize_t
3799 qlcnic_sysfs_clear_esw_stats(struct file *file, struct kobject *kobj,
3800 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3801 {
3802 struct device *dev = container_of(kobj, struct device, kobj);
3803 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3804 int ret;
3805
3806 if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3807 return QL_STATUS_INVALID_PARAM;
3808
3809 ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3810 QLCNIC_QUERY_RX_COUNTER);
3811 if (ret)
3812 return ret;
3813
3814 ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3815 QLCNIC_QUERY_TX_COUNTER);
3816 if (ret)
3817 return ret;
3818
3819 return size;
3820 }
3821
3822 static ssize_t
3823 qlcnic_sysfs_clear_port_stats(struct file *file, struct kobject *kobj,
3824 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3825 {
3826
3827 struct device *dev = container_of(kobj, struct device, kobj);
3828 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3829 int ret;
3830
3831 if (offset >= QLCNIC_MAX_PCI_FUNC)
3832 return QL_STATUS_INVALID_PARAM;
3833
3834 ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3835 QLCNIC_QUERY_RX_COUNTER);
3836 if (ret)
3837 return ret;
3838
3839 ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3840 QLCNIC_QUERY_TX_COUNTER);
3841 if (ret)
3842 return ret;
3843
3844 return size;
3845 }
3846
3847 static ssize_t
3848 qlcnic_sysfs_read_pci_config(struct file *file, struct kobject *kobj,
3849 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3850 {
3851 struct device *dev = container_of(kobj, struct device, kobj);
3852 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3853 struct qlcnic_pci_func_cfg pci_cfg[QLCNIC_MAX_PCI_FUNC];
3854 struct qlcnic_pci_info *pci_info;
3855 int i, ret;
3856
3857 if (size != sizeof(pci_cfg))
3858 return QL_STATUS_INVALID_PARAM;
3859
3860 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
3861 if (!pci_info)
3862 return -ENOMEM;
3863
3864 ret = qlcnic_get_pci_info(adapter, pci_info);
3865 if (ret) {
3866 kfree(pci_info);
3867 return ret;
3868 }
3869
3870 for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3871 pci_cfg[i].pci_func = pci_info[i].id;
3872 pci_cfg[i].func_type = pci_info[i].type;
3873 pci_cfg[i].port_num = pci_info[i].default_port;
3874 pci_cfg[i].min_bw = pci_info[i].tx_min_bw;
3875 pci_cfg[i].max_bw = pci_info[i].tx_max_bw;
3876 memcpy(&pci_cfg[i].def_mac_addr, &pci_info[i].mac, ETH_ALEN);
3877 }
3878 memcpy(buf, &pci_cfg, size);
3879 kfree(pci_info);
3880 return size;
3881 }
3882 static struct bin_attribute bin_attr_npar_config = {
3883 .attr = {.name = "npar_config", .mode = (S_IRUGO | S_IWUSR)},
3884 .size = 0,
3885 .read = qlcnic_sysfs_read_npar_config,
3886 .write = qlcnic_sysfs_write_npar_config,
3887 };
3888
3889 static struct bin_attribute bin_attr_pci_config = {
3890 .attr = {.name = "pci_config", .mode = (S_IRUGO | S_IWUSR)},
3891 .size = 0,
3892 .read = qlcnic_sysfs_read_pci_config,
3893 .write = NULL,
3894 };
3895
3896 static struct bin_attribute bin_attr_port_stats = {
3897 .attr = {.name = "port_stats", .mode = (S_IRUGO | S_IWUSR)},
3898 .size = 0,
3899 .read = qlcnic_sysfs_get_port_stats,
3900 .write = qlcnic_sysfs_clear_port_stats,
3901 };
3902
3903 static struct bin_attribute bin_attr_esw_stats = {
3904 .attr = {.name = "esw_stats", .mode = (S_IRUGO | S_IWUSR)},
3905 .size = 0,
3906 .read = qlcnic_sysfs_get_esw_stats,
3907 .write = qlcnic_sysfs_clear_esw_stats,
3908 };
3909
3910 static struct bin_attribute bin_attr_esw_config = {
3911 .attr = {.name = "esw_config", .mode = (S_IRUGO | S_IWUSR)},
3912 .size = 0,
3913 .read = qlcnic_sysfs_read_esw_config,
3914 .write = qlcnic_sysfs_write_esw_config,
3915 };
3916
3917 static struct bin_attribute bin_attr_pm_config = {
3918 .attr = {.name = "pm_config", .mode = (S_IRUGO | S_IWUSR)},
3919 .size = 0,
3920 .read = qlcnic_sysfs_read_pm_config,
3921 .write = qlcnic_sysfs_write_pm_config,
3922 };
3923
3924 static void
3925 qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
3926 {
3927 struct device *dev = &adapter->pdev->dev;
3928
3929 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3930 if (device_create_file(dev, &dev_attr_bridged_mode))
3931 dev_warn(dev,
3932 "failed to create bridged_mode sysfs entry\n");
3933 }
3934
3935 static void
3936 qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
3937 {
3938 struct device *dev = &adapter->pdev->dev;
3939
3940 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3941 device_remove_file(dev, &dev_attr_bridged_mode);
3942 }
3943
3944 static void
3945 qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
3946 {
3947 struct device *dev = &adapter->pdev->dev;
3948
3949 if (device_create_bin_file(dev, &bin_attr_port_stats))
3950 dev_info(dev, "failed to create port stats sysfs entry");
3951
3952 if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
3953 return;
3954 if (device_create_file(dev, &dev_attr_diag_mode))
3955 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3956 if (device_create_bin_file(dev, &bin_attr_crb))
3957 dev_info(dev, "failed to create crb sysfs entry\n");
3958 if (device_create_bin_file(dev, &bin_attr_mem))
3959 dev_info(dev, "failed to create mem sysfs entry\n");
3960 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
3961 return;
3962 if (device_create_bin_file(dev, &bin_attr_esw_config))
3963 dev_info(dev, "failed to create esw config sysfs entry");
3964 if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3965 return;
3966 if (device_create_bin_file(dev, &bin_attr_pci_config))
3967 dev_info(dev, "failed to create pci config sysfs entry");
3968 if (device_create_bin_file(dev, &bin_attr_npar_config))
3969 dev_info(dev, "failed to create npar config sysfs entry");
3970 if (device_create_bin_file(dev, &bin_attr_pm_config))
3971 dev_info(dev, "failed to create pm config sysfs entry");
3972 if (device_create_bin_file(dev, &bin_attr_esw_stats))
3973 dev_info(dev, "failed to create eswitch stats sysfs entry");
3974 }
3975
3976 static void
3977 qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
3978 {
3979 struct device *dev = &adapter->pdev->dev;
3980
3981 device_remove_bin_file(dev, &bin_attr_port_stats);
3982
3983 if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
3984 return;
3985 device_remove_file(dev, &dev_attr_diag_mode);
3986 device_remove_bin_file(dev, &bin_attr_crb);
3987 device_remove_bin_file(dev, &bin_attr_mem);
3988 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
3989 return;
3990 device_remove_bin_file(dev, &bin_attr_esw_config);
3991 if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3992 return;
3993 device_remove_bin_file(dev, &bin_attr_pci_config);
3994 device_remove_bin_file(dev, &bin_attr_npar_config);
3995 device_remove_bin_file(dev, &bin_attr_pm_config);
3996 device_remove_bin_file(dev, &bin_attr_esw_stats);
3997 }
3998
3999 #ifdef CONFIG_INET
4000
4001 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4002
4003 static void
4004 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4005 struct net_device *dev, unsigned long event)
4006 {
4007 struct in_device *indev;
4008
4009 indev = in_dev_get(dev);
4010 if (!indev)
4011 return;
4012
4013 for_ifa(indev) {
4014 switch (event) {
4015 case NETDEV_UP:
4016 qlcnic_config_ipaddr(adapter,
4017 ifa->ifa_address, QLCNIC_IP_UP);
4018 break;
4019 case NETDEV_DOWN:
4020 qlcnic_config_ipaddr(adapter,
4021 ifa->ifa_address, QLCNIC_IP_DOWN);
4022 break;
4023 default:
4024 break;
4025 }
4026 } endfor_ifa(indev);
4027
4028 in_dev_put(indev);
4029 }
4030
4031 static void
4032 qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4033 {
4034 struct qlcnic_adapter *adapter = netdev_priv(netdev);
4035 struct net_device *dev;
4036 u16 vid;
4037
4038 qlcnic_config_indev_addr(adapter, netdev, event);
4039
4040 if (!adapter->vlgrp)
4041 return;
4042
4043 for (vid = 0; vid < VLAN_N_VID; vid++) {
4044 dev = vlan_group_get_device(adapter->vlgrp, vid);
4045 if (!dev)
4046 continue;
4047
4048 qlcnic_config_indev_addr(adapter, dev, event);
4049 }
4050 }
4051
4052 static int qlcnic_netdev_event(struct notifier_block *this,
4053 unsigned long event, void *ptr)
4054 {
4055 struct qlcnic_adapter *adapter;
4056 struct net_device *dev = (struct net_device *)ptr;
4057
4058 recheck:
4059 if (dev == NULL)
4060 goto done;
4061
4062 if (dev->priv_flags & IFF_802_1Q_VLAN) {
4063 dev = vlan_dev_real_dev(dev);
4064 goto recheck;
4065 }
4066
4067 if (!is_qlcnic_netdev(dev))
4068 goto done;
4069
4070 adapter = netdev_priv(dev);
4071
4072 if (!adapter)
4073 goto done;
4074
4075 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4076 goto done;
4077
4078 qlcnic_config_indev_addr(adapter, dev, event);
4079 done:
4080 return NOTIFY_DONE;
4081 }
4082
4083 static int
4084 qlcnic_inetaddr_event(struct notifier_block *this,
4085 unsigned long event, void *ptr)
4086 {
4087 struct qlcnic_adapter *adapter;
4088 struct net_device *dev;
4089
4090 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4091
4092 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4093
4094 recheck:
4095 if (dev == NULL)
4096 goto done;
4097
4098 if (dev->priv_flags & IFF_802_1Q_VLAN) {
4099 dev = vlan_dev_real_dev(dev);
4100 goto recheck;
4101 }
4102
4103 if (!is_qlcnic_netdev(dev))
4104 goto done;
4105
4106 adapter = netdev_priv(dev);
4107
4108 if (!adapter)
4109 goto done;
4110
4111 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4112 goto done;
4113
4114 switch (event) {
4115 case NETDEV_UP:
4116 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4117 break;
4118 case NETDEV_DOWN:
4119 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4120 break;
4121 default:
4122 break;
4123 }
4124
4125 done:
4126 return NOTIFY_DONE;
4127 }
4128
4129 static struct notifier_block qlcnic_netdev_cb = {
4130 .notifier_call = qlcnic_netdev_event,
4131 };
4132
4133 static struct notifier_block qlcnic_inetaddr_cb = {
4134 .notifier_call = qlcnic_inetaddr_event,
4135 };
4136 #else
4137 static void
4138 qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4139 { }
4140 #endif
4141 static struct pci_error_handlers qlcnic_err_handler = {
4142 .error_detected = qlcnic_io_error_detected,
4143 .slot_reset = qlcnic_io_slot_reset,
4144 .resume = qlcnic_io_resume,
4145 };
4146
4147 static struct pci_driver qlcnic_driver = {
4148 .name = qlcnic_driver_name,
4149 .id_table = qlcnic_pci_tbl,
4150 .probe = qlcnic_probe,
4151 .remove = __devexit_p(qlcnic_remove),
4152 #ifdef CONFIG_PM
4153 .suspend = qlcnic_suspend,
4154 .resume = qlcnic_resume,
4155 #endif
4156 .shutdown = qlcnic_shutdown,
4157 .err_handler = &qlcnic_err_handler
4158
4159 };
4160
4161 static int __init qlcnic_init_module(void)
4162 {
4163 int ret;
4164
4165 printk(KERN_INFO "%s\n", qlcnic_driver_string);
4166
4167 qlcnic_wq = create_singlethread_workqueue("qlcnic");
4168 if (qlcnic_wq == NULL) {
4169 printk(KERN_ERR "qlcnic: cannot create workqueue\n");
4170 return -ENOMEM;
4171 }
4172
4173 #ifdef CONFIG_INET
4174 register_netdevice_notifier(&qlcnic_netdev_cb);
4175 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4176 #endif
4177
4178 ret = pci_register_driver(&qlcnic_driver);
4179 if (ret) {
4180 #ifdef CONFIG_INET
4181 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4182 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4183 #endif
4184 destroy_workqueue(qlcnic_wq);
4185 }
4186
4187 return ret;
4188 }
4189
4190 module_init(qlcnic_init_module);
4191
4192 static void __exit qlcnic_exit_module(void)
4193 {
4194
4195 pci_unregister_driver(&qlcnic_driver);
4196
4197 #ifdef CONFIG_INET
4198 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4199 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4200 #endif
4201 destroy_workqueue(qlcnic_wq);
4202 }
4203
4204 module_exit(qlcnic_exit_module);
Linux kernel - Deliverables
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