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qlcnic: support quiescent mode
[linux-2.6/libata-dev.git] / drivers / net / qlcnic / qlcnic_main.c
blob9b0acfb23e4c36c92f2580c01d68cf1c0b7da9a6
1 /*
2 * Copyright (C) 2009 - QLogic Corporation.
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
18 * MA 02111-1307, USA.
19 *
20 * The full GNU General Public License is included in this distribution
21 * in the file called "COPYING".
22 *
23 */
24
25 #include <linux/slab.h>
26 #include <linux/vmalloc.h>
27 #include <linux/interrupt.h>
28
29 #include "qlcnic.h"
30
31 #include <linux/swab.h>
32 #include <linux/dma-mapping.h>
33 #include <linux/if_vlan.h>
34 #include <net/ip.h>
35 #include <linux/ipv6.h>
36 #include <linux/inetdevice.h>
37 #include <linux/sysfs.h>
38 #include <linux/aer.h>
39
40 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
41 MODULE_LICENSE("GPL");
42 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
43 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
44
45 char qlcnic_driver_name[] = "qlcnic";
46 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
47 "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
48
49 static struct workqueue_struct *qlcnic_wq;
50 static int qlcnic_mac_learn;
51 module_param(qlcnic_mac_learn, int, 0644);
52 MODULE_PARM_DESC(qlcnic_mac_learn, "Mac Filter (0=disabled, 1=enabled)");
53
54 static int use_msi = 1;
55 module_param(use_msi, int, 0644);
56 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
57
58 static int use_msi_x = 1;
59 module_param(use_msi_x, int, 0644);
60 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
61
62 static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
63 module_param(auto_fw_reset, int, 0644);
64 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
65
66 static int load_fw_file;
67 module_param(load_fw_file, int, 0644);
68 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file");
69
70 static int qlcnic_config_npars;
71 module_param(qlcnic_config_npars, int, 0644);
72 MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
73
74 static int __devinit qlcnic_probe(struct pci_dev *pdev,
75 const struct pci_device_id *ent);
76 static void __devexit qlcnic_remove(struct pci_dev *pdev);
77 static int qlcnic_open(struct net_device *netdev);
78 static int qlcnic_close(struct net_device *netdev);
79 static void qlcnic_tx_timeout(struct net_device *netdev);
80 static void qlcnic_attach_work(struct work_struct *work);
81 static void qlcnic_fwinit_work(struct work_struct *work);
82 static void qlcnic_fw_poll_work(struct work_struct *work);
83 static void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
84 work_func_t func, int delay);
85 static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter);
86 static int qlcnic_poll(struct napi_struct *napi, int budget);
87 static int qlcnic_rx_poll(struct napi_struct *napi, int budget);
88 #ifdef CONFIG_NET_POLL_CONTROLLER
89 static void qlcnic_poll_controller(struct net_device *netdev);
90 #endif
91
92 static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter);
93 static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter);
94 static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter);
95 static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter);
96
97 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
98 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
99 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
100
101 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
102 static irqreturn_t qlcnic_intr(int irq, void *data);
103 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
104 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
105
106 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
107 static void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long);
108 static int qlcnic_start_firmware(struct qlcnic_adapter *);
109
110 static void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter);
111 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
112 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
113 static int qlcnicvf_config_led(struct qlcnic_adapter *, u32, u32);
114 static int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *, u32);
115 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
116 static void qlcnic_set_netdev_features(struct qlcnic_adapter *,
117 struct qlcnic_esw_func_cfg *);
118 /* PCI Device ID Table */
119 #define ENTRY(device) \
120 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
121 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
122
123 #define PCI_DEVICE_ID_QLOGIC_QLE824X 0x8020
124
125 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
126 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
127 {0,}
128 };
129
130 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
131
132
133 void
134 qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
135 struct qlcnic_host_tx_ring *tx_ring)
136 {
137 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
138 }
139
140 static const u32 msi_tgt_status[8] = {
141 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
142 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
143 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
144 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
145 };
146
147 static const
148 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
149
150 static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring)
151 {
152 writel(0, sds_ring->crb_intr_mask);
153 }
154
155 static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
156 {
157 struct qlcnic_adapter *adapter = sds_ring->adapter;
158
159 writel(0x1, sds_ring->crb_intr_mask);
160
161 if (!QLCNIC_IS_MSI_FAMILY(adapter))
162 writel(0xfbff, adapter->tgt_mask_reg);
163 }
164
165 static int
166 qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
167 {
168 int size = sizeof(struct qlcnic_host_sds_ring) * count;
169
170 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
171
172 return recv_ctx->sds_rings == NULL;
173 }
174
175 static void
176 qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
177 {
178 if (recv_ctx->sds_rings != NULL)
179 kfree(recv_ctx->sds_rings);
180
181 recv_ctx->sds_rings = NULL;
182 }
183
184 static int
185 qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev)
186 {
187 int ring;
188 struct qlcnic_host_sds_ring *sds_ring;
189 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
190
191 if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
192 return -ENOMEM;
193
194 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
195 sds_ring = &recv_ctx->sds_rings[ring];
196
197 if (ring == adapter->max_sds_rings - 1)
198 netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll,
199 QLCNIC_NETDEV_WEIGHT/adapter->max_sds_rings);
200 else
201 netif_napi_add(netdev, &sds_ring->napi,
202 qlcnic_rx_poll, QLCNIC_NETDEV_WEIGHT*2);
203 }
204
205 return 0;
206 }
207
208 static void
209 qlcnic_napi_del(struct qlcnic_adapter *adapter)
210 {
211 int ring;
212 struct qlcnic_host_sds_ring *sds_ring;
213 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
214
215 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
216 sds_ring = &recv_ctx->sds_rings[ring];
217 netif_napi_del(&sds_ring->napi);
218 }
219
220 qlcnic_free_sds_rings(&adapter->recv_ctx);
221 }
222
223 static void
224 qlcnic_napi_enable(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 napi_enable(&sds_ring->napi);
236 qlcnic_enable_int(sds_ring);
237 }
238 }
239
240 static void
241 qlcnic_napi_disable(struct qlcnic_adapter *adapter)
242 {
243 int ring;
244 struct qlcnic_host_sds_ring *sds_ring;
245 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
246
247 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
248 return;
249
250 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
251 sds_ring = &recv_ctx->sds_rings[ring];
252 qlcnic_disable_int(sds_ring);
253 napi_synchronize(&sds_ring->napi);
254 napi_disable(&sds_ring->napi);
255 }
256 }
257
258 static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
259 {
260 memset(&adapter->stats, 0, sizeof(adapter->stats));
261 }
262
263 static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
264 {
265 u32 control;
266 int pos;
267
268 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
269 if (pos) {
270 pci_read_config_dword(pdev, pos, &control);
271 if (enable)
272 control |= PCI_MSIX_FLAGS_ENABLE;
273 else
274 control = 0;
275 pci_write_config_dword(pdev, pos, control);
276 }
277 }
278
279 static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
280 {
281 int i;
282
283 for (i = 0; i < count; i++)
284 adapter->msix_entries[i].entry = i;
285 }
286
287 static int
288 qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
289 {
290 u8 mac_addr[ETH_ALEN];
291 struct net_device *netdev = adapter->netdev;
292 struct pci_dev *pdev = adapter->pdev;
293
294 if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
295 return -EIO;
296
297 memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
298 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
299 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
300
301 /* set station address */
302
303 if (!is_valid_ether_addr(netdev->perm_addr))
304 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
305 netdev->dev_addr);
306
307 return 0;
308 }
309
310 static int qlcnic_set_mac(struct net_device *netdev, void *p)
311 {
312 struct qlcnic_adapter *adapter = netdev_priv(netdev);
313 struct sockaddr *addr = p;
314
315 if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
316 return -EOPNOTSUPP;
317
318 if (!is_valid_ether_addr(addr->sa_data))
319 return -EINVAL;
320
321 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
322 netif_device_detach(netdev);
323 qlcnic_napi_disable(adapter);
324 }
325
326 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
327 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
328 qlcnic_set_multi(adapter->netdev);
329
330 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
331 netif_device_attach(netdev);
332 qlcnic_napi_enable(adapter);
333 }
334 return 0;
335 }
336
337 static void qlcnic_vlan_rx_register(struct net_device *netdev,
338 struct vlan_group *grp)
339 {
340 struct qlcnic_adapter *adapter = netdev_priv(netdev);
341 adapter->vlgrp = grp;
342 }
343
344 static const struct net_device_ops qlcnic_netdev_ops = {
345 .ndo_open = qlcnic_open,
346 .ndo_stop = qlcnic_close,
347 .ndo_start_xmit = qlcnic_xmit_frame,
348 .ndo_get_stats = qlcnic_get_stats,
349 .ndo_validate_addr = eth_validate_addr,
350 .ndo_set_multicast_list = qlcnic_set_multi,
351 .ndo_set_mac_address = qlcnic_set_mac,
352 .ndo_change_mtu = qlcnic_change_mtu,
353 .ndo_tx_timeout = qlcnic_tx_timeout,
354 .ndo_vlan_rx_register = qlcnic_vlan_rx_register,
355 #ifdef CONFIG_NET_POLL_CONTROLLER
356 .ndo_poll_controller = qlcnic_poll_controller,
357 #endif
358 };
359
360 static struct qlcnic_nic_template qlcnic_ops = {
361 .config_bridged_mode = qlcnic_config_bridged_mode,
362 .config_led = qlcnic_config_led,
363 .start_firmware = qlcnic_start_firmware
364 };
365
366 static struct qlcnic_nic_template qlcnic_vf_ops = {
367 .config_bridged_mode = qlcnicvf_config_bridged_mode,
368 .config_led = qlcnicvf_config_led,
369 .start_firmware = qlcnicvf_start_firmware
370 };
371
372 static void
373 qlcnic_setup_intr(struct qlcnic_adapter *adapter)
374 {
375 const struct qlcnic_legacy_intr_set *legacy_intrp;
376 struct pci_dev *pdev = adapter->pdev;
377 int err, num_msix;
378
379 if (adapter->rss_supported) {
380 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
381 MSIX_ENTRIES_PER_ADAPTER : 2;
382 } else
383 num_msix = 1;
384
385 adapter->max_sds_rings = 1;
386
387 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
388
389 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
390
391 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
392 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
393 legacy_intrp->tgt_status_reg);
394 adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
395 legacy_intrp->tgt_mask_reg);
396 adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
397
398 adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
399 ISR_INT_STATE_REG);
400
401 qlcnic_set_msix_bit(pdev, 0);
402
403 if (adapter->msix_supported) {
404
405 qlcnic_init_msix_entries(adapter, num_msix);
406 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
407 if (err == 0) {
408 adapter->flags |= QLCNIC_MSIX_ENABLED;
409 qlcnic_set_msix_bit(pdev, 1);
410
411 if (adapter->rss_supported)
412 adapter->max_sds_rings = num_msix;
413
414 dev_info(&pdev->dev, "using msi-x interrupts\n");
415 return;
416 }
417
418 if (err > 0)
419 pci_disable_msix(pdev);
420
421 /* fall through for msi */
422 }
423
424 if (use_msi && !pci_enable_msi(pdev)) {
425 adapter->flags |= QLCNIC_MSI_ENABLED;
426 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
427 msi_tgt_status[adapter->ahw.pci_func]);
428 dev_info(&pdev->dev, "using msi interrupts\n");
429 adapter->msix_entries[0].vector = pdev->irq;
430 return;
431 }
432
433 dev_info(&pdev->dev, "using legacy interrupts\n");
434 adapter->msix_entries[0].vector = pdev->irq;
435 }
436
437 static void
438 qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
439 {
440 if (adapter->flags & QLCNIC_MSIX_ENABLED)
441 pci_disable_msix(adapter->pdev);
442 if (adapter->flags & QLCNIC_MSI_ENABLED)
443 pci_disable_msi(adapter->pdev);
444 }
445
446 static void
447 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
448 {
449 if (adapter->ahw.pci_base0 != NULL)
450 iounmap(adapter->ahw.pci_base0);
451 }
452
453 static int
454 qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
455 {
456 struct qlcnic_pci_info *pci_info;
457 int i, ret = 0;
458 u8 pfn;
459
460 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
461 if (!pci_info)
462 return -ENOMEM;
463
464 adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
465 QLCNIC_MAX_PCI_FUNC, GFP_KERNEL);
466 if (!adapter->npars) {
467 ret = -ENOMEM;
468 goto err_pci_info;
469 }
470
471 adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
472 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
473 if (!adapter->eswitch) {
474 ret = -ENOMEM;
475 goto err_npars;
476 }
477
478 ret = qlcnic_get_pci_info(adapter, pci_info);
479 if (ret)
480 goto err_eswitch;
481
482 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
483 pfn = pci_info[i].id;
484 if (pfn > QLCNIC_MAX_PCI_FUNC)
485 return QL_STATUS_INVALID_PARAM;
486 adapter->npars[pfn].active = (u8)pci_info[i].active;
487 adapter->npars[pfn].type = (u8)pci_info[i].type;
488 adapter->npars[pfn].phy_port = (u8)pci_info[i].default_port;
489 adapter->npars[pfn].min_bw = pci_info[i].tx_min_bw;
490 adapter->npars[pfn].max_bw = pci_info[i].tx_max_bw;
491 }
492
493 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
494 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
495
496 kfree(pci_info);
497 return 0;
498
499 err_eswitch:
500 kfree(adapter->eswitch);
501 adapter->eswitch = NULL;
502 err_npars:
503 kfree(adapter->npars);
504 adapter->npars = NULL;
505 err_pci_info:
506 kfree(pci_info);
507
508 return ret;
509 }
510
511 static int
512 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
513 {
514 u8 id;
515 u32 ref_count;
516 int i, ret = 1;
517 u32 data = QLCNIC_MGMT_FUNC;
518 void __iomem *priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
519
520 /* If other drivers are not in use set their privilege level */
521 ref_count = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
522 ret = qlcnic_api_lock(adapter);
523 if (ret)
524 goto err_lock;
525
526 if (qlcnic_config_npars) {
527 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
528 id = i;
529 if (adapter->npars[i].type != QLCNIC_TYPE_NIC ||
530 id == adapter->ahw.pci_func)
531 continue;
532 data |= (qlcnic_config_npars &
533 QLC_DEV_SET_DRV(0xf, id));
534 }
535 } else {
536 data = readl(priv_op);
537 data = (data & ~QLC_DEV_SET_DRV(0xf, adapter->ahw.pci_func)) |
538 (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
539 adapter->ahw.pci_func));
540 }
541 writel(data, priv_op);
542 qlcnic_api_unlock(adapter);
543 err_lock:
544 return ret;
545 }
546
547 static void
548 qlcnic_check_vf(struct qlcnic_adapter *adapter)
549 {
550 void __iomem *msix_base_addr;
551 void __iomem *priv_op;
552 u32 func;
553 u32 msix_base;
554 u32 op_mode, priv_level;
555
556 /* Determine FW API version */
557 adapter->fw_hal_version = readl(adapter->ahw.pci_base0 + QLCNIC_FW_API);
558
559 /* Find PCI function number */
560 pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
561 msix_base_addr = adapter->ahw.pci_base0 + QLCNIC_MSIX_BASE;
562 msix_base = readl(msix_base_addr);
563 func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE;
564 adapter->ahw.pci_func = func;
565
566 /* Determine function privilege level */
567 priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
568 op_mode = readl(priv_op);
569 if (op_mode == QLC_DEV_DRV_DEFAULT)
570 priv_level = QLCNIC_MGMT_FUNC;
571 else
572 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
573
574 if (priv_level == QLCNIC_NON_PRIV_FUNC) {
575 adapter->op_mode = QLCNIC_NON_PRIV_FUNC;
576 dev_info(&adapter->pdev->dev,
577 "HAL Version: %d Non Privileged function\n",
578 adapter->fw_hal_version);
579 adapter->nic_ops = &qlcnic_vf_ops;
580 } else
581 adapter->nic_ops = &qlcnic_ops;
582 }
583
584 static int
585 qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
586 {
587 void __iomem *mem_ptr0 = NULL;
588 resource_size_t mem_base;
589 unsigned long mem_len, pci_len0 = 0;
590
591 struct pci_dev *pdev = adapter->pdev;
592
593 /* remap phys address */
594 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
595 mem_len = pci_resource_len(pdev, 0);
596
597 if (mem_len == QLCNIC_PCI_2MB_SIZE) {
598
599 mem_ptr0 = pci_ioremap_bar(pdev, 0);
600 if (mem_ptr0 == NULL) {
601 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
602 return -EIO;
603 }
604 pci_len0 = mem_len;
605 } else {
606 return -EIO;
607 }
608
609 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
610
611 adapter->ahw.pci_base0 = mem_ptr0;
612 adapter->ahw.pci_len0 = pci_len0;
613
614 qlcnic_check_vf(adapter);
615
616 adapter->ahw.ocm_win_crb = qlcnic_get_ioaddr(adapter,
617 QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(adapter->ahw.pci_func)));
618
619 return 0;
620 }
621
622 static void get_brd_name(struct qlcnic_adapter *adapter, char *name)
623 {
624 struct pci_dev *pdev = adapter->pdev;
625 int i, found = 0;
626
627 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
628 if (qlcnic_boards[i].vendor == pdev->vendor &&
629 qlcnic_boards[i].device == pdev->device &&
630 qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
631 qlcnic_boards[i].sub_device == pdev->subsystem_device) {
632 sprintf(name, "%pM: %s" ,
633 adapter->mac_addr,
634 qlcnic_boards[i].short_name);
635 found = 1;
636 break;
637 }
638
639 }
640
641 if (!found)
642 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
643 }
644
645 static void
646 qlcnic_check_options(struct qlcnic_adapter *adapter)
647 {
648 u32 fw_major, fw_minor, fw_build;
649 struct pci_dev *pdev = adapter->pdev;
650
651 fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
652 fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
653 fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
654
655 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
656
657 dev_info(&pdev->dev, "firmware v%d.%d.%d\n",
658 fw_major, fw_minor, fw_build);
659
660 adapter->flags &= ~QLCNIC_LRO_ENABLED;
661
662 if (adapter->ahw.port_type == QLCNIC_XGBE) {
663 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
664 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
665 } else if (adapter->ahw.port_type == QLCNIC_GBE) {
666 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
667 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
668 }
669
670 adapter->msix_supported = !!use_msi_x;
671 adapter->rss_supported = !!use_msi_x;
672
673 adapter->num_txd = MAX_CMD_DESCRIPTORS;
674
675 adapter->max_rds_rings = MAX_RDS_RINGS;
676 }
677
678 static int
679 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
680 {
681 int err;
682 struct qlcnic_info nic_info;
683
684 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw.pci_func);
685 if (err)
686 return err;
687
688 adapter->physical_port = (u8)nic_info.phys_port;
689 adapter->switch_mode = nic_info.switch_mode;
690 adapter->max_tx_ques = nic_info.max_tx_ques;
691 adapter->max_rx_ques = nic_info.max_rx_ques;
692 adapter->capabilities = nic_info.capabilities;
693 adapter->max_mac_filters = nic_info.max_mac_filters;
694 adapter->max_mtu = nic_info.max_mtu;
695
696 if (adapter->capabilities & BIT_6)
697 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
698 else
699 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
700
701 return err;
702 }
703
704 static void
705 qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
706 struct qlcnic_esw_func_cfg *esw_cfg)
707 {
708 if (esw_cfg->discard_tagged)
709 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
710 else
711 adapter->flags |= QLCNIC_TAGGING_ENABLED;
712
713 if (esw_cfg->vlan_id)
714 adapter->pvid = esw_cfg->vlan_id;
715 else
716 adapter->pvid = 0;
717 }
718
719 static void
720 qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
721 struct qlcnic_esw_func_cfg *esw_cfg)
722 {
723 adapter->flags &= ~QLCNIC_MACSPOOF;
724 adapter->flags &= ~QLCNIC_MAC_OVERRIDE_DISABLED;
725
726 if (esw_cfg->mac_anti_spoof)
727 adapter->flags |= QLCNIC_MACSPOOF;
728
729 if (!esw_cfg->mac_override)
730 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
731
732 qlcnic_set_netdev_features(adapter, esw_cfg);
733 }
734
735 static int
736 qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
737 {
738 struct qlcnic_esw_func_cfg esw_cfg;
739
740 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
741 return 0;
742
743 esw_cfg.pci_func = adapter->ahw.pci_func;
744 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
745 return -EIO;
746 qlcnic_set_vlan_config(adapter, &esw_cfg);
747 qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
748
749 return 0;
750 }
751
752 static void
753 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
754 struct qlcnic_esw_func_cfg *esw_cfg)
755 {
756 struct net_device *netdev = adapter->netdev;
757 unsigned long features, vlan_features;
758
759 features = (NETIF_F_SG | NETIF_F_IP_CSUM |
760 NETIF_F_IPV6_CSUM | NETIF_F_GRO);
761 vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
762 NETIF_F_IPV6_CSUM);
763
764 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
765 features |= (NETIF_F_TSO | NETIF_F_TSO6);
766 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
767 }
768 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
769 features |= NETIF_F_LRO;
770
771 if (esw_cfg->offload_flags & BIT_0) {
772 netdev->features |= features;
773 adapter->rx_csum = 1;
774 if (!(esw_cfg->offload_flags & BIT_1))
775 netdev->features &= ~NETIF_F_TSO;
776 if (!(esw_cfg->offload_flags & BIT_2))
777 netdev->features &= ~NETIF_F_TSO6;
778 } else {
779 netdev->features &= ~features;
780 adapter->rx_csum = 0;
781 }
782
783 netdev->vlan_features = (features & vlan_features);
784 }
785
786 static int
787 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
788 {
789 void __iomem *priv_op;
790 u32 op_mode, priv_level;
791 int err = 0;
792
793 err = qlcnic_initialize_nic(adapter);
794 if (err)
795 return err;
796
797 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
798 return 0;
799
800 priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
801 op_mode = readl(priv_op);
802 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
803
804 if (op_mode == QLC_DEV_DRV_DEFAULT)
805 priv_level = QLCNIC_MGMT_FUNC;
806 else
807 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
808
809 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
810 if (priv_level == QLCNIC_MGMT_FUNC) {
811 adapter->op_mode = QLCNIC_MGMT_FUNC;
812 err = qlcnic_init_pci_info(adapter);
813 if (err)
814 return err;
815 /* Set privilege level for other functions */
816 qlcnic_set_function_modes(adapter);
817 dev_info(&adapter->pdev->dev,
818 "HAL Version: %d, Management function\n",
819 adapter->fw_hal_version);
820 } else if (priv_level == QLCNIC_PRIV_FUNC) {
821 adapter->op_mode = QLCNIC_PRIV_FUNC;
822 dev_info(&adapter->pdev->dev,
823 "HAL Version: %d, Privileged function\n",
824 adapter->fw_hal_version);
825 }
826 }
827
828 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
829
830 return err;
831 }
832
833 static int
834 qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
835 {
836 struct qlcnic_esw_func_cfg esw_cfg;
837 struct qlcnic_npar_info *npar;
838 u8 i;
839
840 if (adapter->need_fw_reset)
841 return 0;
842
843 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
844 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
845 continue;
846 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
847 esw_cfg.pci_func = i;
848 esw_cfg.offload_flags = BIT_0;
849 esw_cfg.mac_override = BIT_0;
850 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO)
851 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
852 if (qlcnic_config_switch_port(adapter, &esw_cfg))
853 return -EIO;
854 npar = &adapter->npars[i];
855 npar->pvid = esw_cfg.vlan_id;
856 npar->mac_override = esw_cfg.mac_override;
857 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
858 npar->discard_tagged = esw_cfg.discard_tagged;
859 npar->promisc_mode = esw_cfg.promisc_mode;
860 npar->offload_flags = esw_cfg.offload_flags;
861 }
862
863 return 0;
864 }
865
866 static int
867 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
868 struct qlcnic_npar_info *npar, int pci_func)
869 {
870 struct qlcnic_esw_func_cfg esw_cfg;
871 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
872 esw_cfg.pci_func = pci_func;
873 esw_cfg.vlan_id = npar->pvid;
874 esw_cfg.mac_override = npar->mac_override;
875 esw_cfg.discard_tagged = npar->discard_tagged;
876 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
877 esw_cfg.offload_flags = npar->offload_flags;
878 esw_cfg.promisc_mode = npar->promisc_mode;
879 if (qlcnic_config_switch_port(adapter, &esw_cfg))
880 return -EIO;
881
882 esw_cfg.op_mode = QLCNIC_ADD_VLAN;
883 if (qlcnic_config_switch_port(adapter, &esw_cfg))
884 return -EIO;
885
886 return 0;
887 }
888
889 static int
890 qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
891 {
892 int i, err;
893 struct qlcnic_npar_info *npar;
894 struct qlcnic_info nic_info;
895
896 if (!adapter->need_fw_reset)
897 return 0;
898
899 /* Set the NPAR config data after FW reset */
900 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
901 npar = &adapter->npars[i];
902 if (npar->type != QLCNIC_TYPE_NIC)
903 continue;
904 err = qlcnic_get_nic_info(adapter, &nic_info, i);
905 if (err)
906 return err;
907 nic_info.min_tx_bw = npar->min_bw;
908 nic_info.max_tx_bw = npar->max_bw;
909 err = qlcnic_set_nic_info(adapter, &nic_info);
910 if (err)
911 return err;
912
913 if (npar->enable_pm) {
914 err = qlcnic_config_port_mirroring(adapter,
915 npar->dest_npar, 1, i);
916 if (err)
917 return err;
918 }
919 err = qlcnic_reset_eswitch_config(adapter, npar, i);
920 if (err)
921 return err;
922 }
923 return 0;
924 }
925
926 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
927 {
928 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
929 u32 npar_state;
930
931 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
932 return 0;
933
934 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
935 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
936 msleep(1000);
937 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
938 }
939 if (!npar_opt_timeo) {
940 dev_err(&adapter->pdev->dev,
941 "Waiting for NPAR state to opertional timeout\n");
942 return -EIO;
943 }
944 return 0;
945 }
946
947 static int
948 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
949 {
950 int err;
951
952 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
953 adapter->op_mode != QLCNIC_MGMT_FUNC)
954 return 0;
955
956 err = qlcnic_set_default_offload_settings(adapter);
957 if (err)
958 return err;
959
960 err = qlcnic_reset_npar_config(adapter);
961 if (err)
962 return err;
963
964 qlcnic_dev_set_npar_ready(adapter);
965
966 return err;
967 }
968
969 static int
970 qlcnic_start_firmware(struct qlcnic_adapter *adapter)
971 {
972 int err;
973
974 err = qlcnic_can_start_firmware(adapter);
975 if (err < 0)
976 return err;
977 else if (!err)
978 goto check_fw_status;
979
980 if (load_fw_file)
981 qlcnic_request_firmware(adapter);
982 else {
983 err = qlcnic_check_flash_fw_ver(adapter);
984 if (err)
985 goto err_out;
986
987 adapter->fw_type = QLCNIC_FLASH_ROMIMAGE;
988 }
989
990 err = qlcnic_need_fw_reset(adapter);
991 if (err == 0)
992 goto check_fw_status;
993
994 err = qlcnic_pinit_from_rom(adapter);
995 if (err)
996 goto err_out;
997
998 err = qlcnic_load_firmware(adapter);
999 if (err)
1000 goto err_out;
1001
1002 qlcnic_release_firmware(adapter);
1003 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1004
1005 check_fw_status:
1006 err = qlcnic_check_fw_status(adapter);
1007 if (err)
1008 goto err_out;
1009
1010 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1011 qlcnic_idc_debug_info(adapter, 1);
1012
1013 err = qlcnic_check_eswitch_mode(adapter);
1014 if (err) {
1015 dev_err(&adapter->pdev->dev,
1016 "Memory allocation failed for eswitch\n");
1017 goto err_out;
1018 }
1019 err = qlcnic_set_mgmt_operations(adapter);
1020 if (err)
1021 goto err_out;
1022
1023 qlcnic_check_options(adapter);
1024 adapter->need_fw_reset = 0;
1025
1026 qlcnic_release_firmware(adapter);
1027 return 0;
1028
1029 err_out:
1030 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1031 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1032
1033 qlcnic_release_firmware(adapter);
1034 return err;
1035 }
1036
1037 static int
1038 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1039 {
1040 irq_handler_t handler;
1041 struct qlcnic_host_sds_ring *sds_ring;
1042 int err, ring;
1043
1044 unsigned long flags = 0;
1045 struct net_device *netdev = adapter->netdev;
1046 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1047
1048 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1049 handler = qlcnic_tmp_intr;
1050 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1051 flags |= IRQF_SHARED;
1052
1053 } else {
1054 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1055 handler = qlcnic_msix_intr;
1056 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1057 handler = qlcnic_msi_intr;
1058 else {
1059 flags |= IRQF_SHARED;
1060 handler = qlcnic_intr;
1061 }
1062 }
1063 adapter->irq = netdev->irq;
1064
1065 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1066 sds_ring = &recv_ctx->sds_rings[ring];
1067 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1068 err = request_irq(sds_ring->irq, handler,
1069 flags, sds_ring->name, sds_ring);
1070 if (err)
1071 return err;
1072 }
1073
1074 return 0;
1075 }
1076
1077 static void
1078 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1079 {
1080 int ring;
1081 struct qlcnic_host_sds_ring *sds_ring;
1082
1083 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
1084
1085 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1086 sds_ring = &recv_ctx->sds_rings[ring];
1087 free_irq(sds_ring->irq, sds_ring);
1088 }
1089 }
1090
1091 static void
1092 qlcnic_init_coalesce_defaults(struct qlcnic_adapter *adapter)
1093 {
1094 adapter->coal.flags = QLCNIC_INTR_DEFAULT;
1095 adapter->coal.normal.data.rx_time_us =
1096 QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1097 adapter->coal.normal.data.rx_packets =
1098 QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1099 adapter->coal.normal.data.tx_time_us =
1100 QLCNIC_DEFAULT_INTR_COALESCE_TX_TIME_US;
1101 adapter->coal.normal.data.tx_packets =
1102 QLCNIC_DEFAULT_INTR_COALESCE_TX_PACKETS;
1103 }
1104
1105 static int
1106 __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1107 {
1108 int ring;
1109 struct qlcnic_host_rds_ring *rds_ring;
1110
1111 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1112 return -EIO;
1113
1114 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1115 return 0;
1116 if (qlcnic_set_eswitch_port_config(adapter))
1117 return -EIO;
1118
1119 if (qlcnic_fw_create_ctx(adapter))
1120 return -EIO;
1121
1122 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1123 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1124 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
1125 }
1126
1127 qlcnic_set_multi(netdev);
1128 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1129
1130 adapter->ahw.linkup = 0;
1131
1132 if (adapter->max_sds_rings > 1)
1133 qlcnic_config_rss(adapter, 1);
1134
1135 qlcnic_config_intr_coalesce(adapter);
1136
1137 if (netdev->features & NETIF_F_LRO)
1138 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1139
1140 qlcnic_napi_enable(adapter);
1141
1142 qlcnic_linkevent_request(adapter, 1);
1143
1144 adapter->reset_context = 0;
1145 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1146 return 0;
1147 }
1148
1149 /* Usage: During resume and firmware recovery module.*/
1150
1151 static int
1152 qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1153 {
1154 int err = 0;
1155
1156 rtnl_lock();
1157 if (netif_running(netdev))
1158 err = __qlcnic_up(adapter, netdev);
1159 rtnl_unlock();
1160
1161 return err;
1162 }
1163
1164 static void
1165 __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1166 {
1167 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1168 return;
1169
1170 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1171 return;
1172
1173 smp_mb();
1174 spin_lock(&adapter->tx_clean_lock);
1175 netif_carrier_off(netdev);
1176 netif_tx_disable(netdev);
1177
1178 qlcnic_free_mac_list(adapter);
1179
1180 if (adapter->fhash.fnum)
1181 qlcnic_delete_lb_filters(adapter);
1182
1183 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1184
1185 qlcnic_napi_disable(adapter);
1186
1187 qlcnic_fw_destroy_ctx(adapter);
1188
1189 qlcnic_reset_rx_buffers_list(adapter);
1190 qlcnic_release_tx_buffers(adapter);
1191 spin_unlock(&adapter->tx_clean_lock);
1192 }
1193
1194 /* Usage: During suspend and firmware recovery module */
1195
1196 static void
1197 qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1198 {
1199 rtnl_lock();
1200 if (netif_running(netdev))
1201 __qlcnic_down(adapter, netdev);
1202 rtnl_unlock();
1203
1204 }
1205
1206 static int
1207 qlcnic_attach(struct qlcnic_adapter *adapter)
1208 {
1209 struct net_device *netdev = adapter->netdev;
1210 struct pci_dev *pdev = adapter->pdev;
1211 int err;
1212
1213 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1214 return 0;
1215
1216 err = qlcnic_napi_add(adapter, netdev);
1217 if (err)
1218 return err;
1219
1220 err = qlcnic_alloc_sw_resources(adapter);
1221 if (err) {
1222 dev_err(&pdev->dev, "Error in setting sw resources\n");
1223 goto err_out_napi_del;
1224 }
1225
1226 err = qlcnic_alloc_hw_resources(adapter);
1227 if (err) {
1228 dev_err(&pdev->dev, "Error in setting hw resources\n");
1229 goto err_out_free_sw;
1230 }
1231
1232 err = qlcnic_request_irq(adapter);
1233 if (err) {
1234 dev_err(&pdev->dev, "failed to setup interrupt\n");
1235 goto err_out_free_hw;
1236 }
1237
1238 qlcnic_init_coalesce_defaults(adapter);
1239
1240 qlcnic_create_sysfs_entries(adapter);
1241
1242 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1243 return 0;
1244
1245 err_out_free_hw:
1246 qlcnic_free_hw_resources(adapter);
1247 err_out_free_sw:
1248 qlcnic_free_sw_resources(adapter);
1249 err_out_napi_del:
1250 qlcnic_napi_del(adapter);
1251 return err;
1252 }
1253
1254 static void
1255 qlcnic_detach(struct qlcnic_adapter *adapter)
1256 {
1257 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1258 return;
1259
1260 qlcnic_remove_sysfs_entries(adapter);
1261
1262 qlcnic_free_hw_resources(adapter);
1263 qlcnic_release_rx_buffers(adapter);
1264 qlcnic_free_irq(adapter);
1265 qlcnic_napi_del(adapter);
1266 qlcnic_free_sw_resources(adapter);
1267
1268 adapter->is_up = 0;
1269 }
1270
1271 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1272 {
1273 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1274 struct qlcnic_host_sds_ring *sds_ring;
1275 int ring;
1276
1277 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1278 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1279 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1280 sds_ring = &adapter->recv_ctx.sds_rings[ring];
1281 qlcnic_disable_int(sds_ring);
1282 }
1283 }
1284
1285 qlcnic_fw_destroy_ctx(adapter);
1286
1287 qlcnic_detach(adapter);
1288
1289 adapter->diag_test = 0;
1290 adapter->max_sds_rings = max_sds_rings;
1291
1292 if (qlcnic_attach(adapter))
1293 goto out;
1294
1295 if (netif_running(netdev))
1296 __qlcnic_up(adapter, netdev);
1297 out:
1298 netif_device_attach(netdev);
1299 }
1300
1301 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1302 {
1303 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1304 struct qlcnic_host_sds_ring *sds_ring;
1305 struct qlcnic_host_rds_ring *rds_ring;
1306 int ring;
1307 int ret;
1308
1309 netif_device_detach(netdev);
1310
1311 if (netif_running(netdev))
1312 __qlcnic_down(adapter, netdev);
1313
1314 qlcnic_detach(adapter);
1315
1316 adapter->max_sds_rings = 1;
1317 adapter->diag_test = test;
1318
1319 ret = qlcnic_attach(adapter);
1320 if (ret) {
1321 netif_device_attach(netdev);
1322 return ret;
1323 }
1324
1325 ret = qlcnic_fw_create_ctx(adapter);
1326 if (ret) {
1327 qlcnic_detach(adapter);
1328 netif_device_attach(netdev);
1329 return ret;
1330 }
1331
1332 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1333 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1334 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
1335 }
1336
1337 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1338 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1339 sds_ring = &adapter->recv_ctx.sds_rings[ring];
1340 qlcnic_enable_int(sds_ring);
1341 }
1342 }
1343 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1344
1345 return 0;
1346 }
1347
1348 /* Reset context in hardware only */
1349 static int
1350 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1351 {
1352 struct net_device *netdev = adapter->netdev;
1353
1354 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1355 return -EBUSY;
1356
1357 netif_device_detach(netdev);
1358
1359 qlcnic_down(adapter, netdev);
1360
1361 qlcnic_up(adapter, netdev);
1362
1363 netif_device_attach(netdev);
1364
1365 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1366 return 0;
1367 }
1368
1369 int
1370 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1371 {
1372 int err = 0;
1373 struct net_device *netdev = adapter->netdev;
1374
1375 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1376 return -EBUSY;
1377
1378 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1379
1380 netif_device_detach(netdev);
1381
1382 if (netif_running(netdev))
1383 __qlcnic_down(adapter, netdev);
1384
1385 qlcnic_detach(adapter);
1386
1387 if (netif_running(netdev)) {
1388 err = qlcnic_attach(adapter);
1389 if (!err)
1390 __qlcnic_up(adapter, netdev);
1391 }
1392
1393 netif_device_attach(netdev);
1394 }
1395
1396 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1397 return err;
1398 }
1399
1400 static int
1401 qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
1402 struct net_device *netdev, u8 pci_using_dac)
1403 {
1404 int err;
1405 struct pci_dev *pdev = adapter->pdev;
1406
1407 adapter->rx_csum = 1;
1408 adapter->mc_enabled = 0;
1409 adapter->max_mc_count = 38;
1410
1411 netdev->netdev_ops = &qlcnic_netdev_ops;
1412 netdev->watchdog_timeo = 5*HZ;
1413
1414 qlcnic_change_mtu(netdev, netdev->mtu);
1415
1416 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1417
1418 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1419 NETIF_F_IPV6_CSUM | NETIF_F_GRO | NETIF_F_HW_VLAN_RX);
1420 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1421 NETIF_F_IPV6_CSUM);
1422
1423 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
1424 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1425 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1426 }
1427
1428 if (pci_using_dac) {
1429 netdev->features |= NETIF_F_HIGHDMA;
1430 netdev->vlan_features |= NETIF_F_HIGHDMA;
1431 }
1432
1433 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
1434 netdev->features |= (NETIF_F_HW_VLAN_TX);
1435
1436 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1437 netdev->features |= NETIF_F_LRO;
1438 netdev->irq = adapter->msix_entries[0].vector;
1439
1440 netif_carrier_off(netdev);
1441 netif_stop_queue(netdev);
1442
1443 err = register_netdev(netdev);
1444 if (err) {
1445 dev_err(&pdev->dev, "failed to register net device\n");
1446 return err;
1447 }
1448
1449 return 0;
1450 }
1451
1452 static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *pci_using_dac)
1453 {
1454 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1455 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1456 *pci_using_dac = 1;
1457 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1458 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1459 *pci_using_dac = 0;
1460 else {
1461 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1462 return -EIO;
1463 }
1464
1465 return 0;
1466 }
1467
1468 static int __devinit
1469 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1470 {
1471 struct net_device *netdev = NULL;
1472 struct qlcnic_adapter *adapter = NULL;
1473 int err;
1474 uint8_t revision_id;
1475 uint8_t pci_using_dac;
1476 char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
1477
1478 err = pci_enable_device(pdev);
1479 if (err)
1480 return err;
1481
1482 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1483 err = -ENODEV;
1484 goto err_out_disable_pdev;
1485 }
1486
1487 err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1488 if (err)
1489 goto err_out_disable_pdev;
1490
1491 err = pci_request_regions(pdev, qlcnic_driver_name);
1492 if (err)
1493 goto err_out_disable_pdev;
1494
1495 pci_set_master(pdev);
1496 pci_enable_pcie_error_reporting(pdev);
1497
1498 netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1499 if (!netdev) {
1500 dev_err(&pdev->dev, "failed to allocate net_device\n");
1501 err = -ENOMEM;
1502 goto err_out_free_res;
1503 }
1504
1505 SET_NETDEV_DEV(netdev, &pdev->dev);
1506
1507 adapter = netdev_priv(netdev);
1508 adapter->netdev = netdev;
1509 adapter->pdev = pdev;
1510 adapter->dev_rst_time = jiffies;
1511
1512 revision_id = pdev->revision;
1513 adapter->ahw.revision_id = revision_id;
1514
1515 rwlock_init(&adapter->ahw.crb_lock);
1516 mutex_init(&adapter->ahw.mem_lock);
1517
1518 spin_lock_init(&adapter->tx_clean_lock);
1519 INIT_LIST_HEAD(&adapter->mac_list);
1520
1521 err = qlcnic_setup_pci_map(adapter);
1522 if (err)
1523 goto err_out_free_netdev;
1524
1525 /* This will be reset for mezz cards */
1526 adapter->portnum = adapter->ahw.pci_func;
1527
1528 err = qlcnic_get_board_info(adapter);
1529 if (err) {
1530 dev_err(&pdev->dev, "Error getting board config info.\n");
1531 goto err_out_iounmap;
1532 }
1533
1534 err = qlcnic_setup_idc_param(adapter);
1535 if (err)
1536 goto err_out_iounmap;
1537
1538 err = adapter->nic_ops->start_firmware(adapter);
1539 if (err) {
1540 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1541 goto err_out_decr_ref;
1542 }
1543
1544 if (qlcnic_read_mac_addr(adapter))
1545 dev_warn(&pdev->dev, "failed to read mac addr\n");
1546
1547 if (adapter->portnum == 0) {
1548 get_brd_name(adapter, brd_name);
1549
1550 pr_info("%s: %s Board Chip rev 0x%x\n",
1551 module_name(THIS_MODULE),
1552 brd_name, adapter->ahw.revision_id);
1553 }
1554
1555 qlcnic_clear_stats(adapter);
1556
1557 qlcnic_setup_intr(adapter);
1558
1559 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1560 if (err)
1561 goto err_out_disable_msi;
1562
1563 pci_set_drvdata(pdev, adapter);
1564
1565 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1566
1567 switch (adapter->ahw.port_type) {
1568 case QLCNIC_GBE:
1569 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1570 adapter->netdev->name);
1571 break;
1572 case QLCNIC_XGBE:
1573 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1574 adapter->netdev->name);
1575 break;
1576 }
1577
1578 qlcnic_alloc_lb_filters_mem(adapter);
1579 qlcnic_create_diag_entries(adapter);
1580
1581 return 0;
1582
1583 err_out_disable_msi:
1584 qlcnic_teardown_intr(adapter);
1585
1586 err_out_decr_ref:
1587 qlcnic_clr_all_drv_state(adapter, 0);
1588
1589 err_out_iounmap:
1590 qlcnic_cleanup_pci_map(adapter);
1591
1592 err_out_free_netdev:
1593 free_netdev(netdev);
1594
1595 err_out_free_res:
1596 pci_release_regions(pdev);
1597
1598 err_out_disable_pdev:
1599 pci_set_drvdata(pdev, NULL);
1600 pci_disable_device(pdev);
1601 return err;
1602 }
1603
1604 static void __devexit qlcnic_remove(struct pci_dev *pdev)
1605 {
1606 struct qlcnic_adapter *adapter;
1607 struct net_device *netdev;
1608
1609 adapter = pci_get_drvdata(pdev);
1610 if (adapter == NULL)
1611 return;
1612
1613 netdev = adapter->netdev;
1614
1615 qlcnic_cancel_fw_work(adapter);
1616
1617 unregister_netdev(netdev);
1618
1619 qlcnic_detach(adapter);
1620
1621 if (adapter->npars != NULL)
1622 kfree(adapter->npars);
1623 if (adapter->eswitch != NULL)
1624 kfree(adapter->eswitch);
1625
1626 qlcnic_clr_all_drv_state(adapter, 0);
1627
1628 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1629
1630 qlcnic_free_lb_filters_mem(adapter);
1631
1632 qlcnic_teardown_intr(adapter);
1633
1634 qlcnic_remove_diag_entries(adapter);
1635
1636 qlcnic_cleanup_pci_map(adapter);
1637
1638 qlcnic_release_firmware(adapter);
1639
1640 pci_disable_pcie_error_reporting(pdev);
1641 pci_release_regions(pdev);
1642 pci_disable_device(pdev);
1643 pci_set_drvdata(pdev, NULL);
1644
1645 free_netdev(netdev);
1646 }
1647 static int __qlcnic_shutdown(struct pci_dev *pdev)
1648 {
1649 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1650 struct net_device *netdev = adapter->netdev;
1651 int retval;
1652
1653 netif_device_detach(netdev);
1654
1655 qlcnic_cancel_fw_work(adapter);
1656
1657 if (netif_running(netdev))
1658 qlcnic_down(adapter, netdev);
1659
1660 qlcnic_clr_all_drv_state(adapter, 0);
1661
1662 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1663
1664 retval = pci_save_state(pdev);
1665 if (retval)
1666 return retval;
1667
1668 if (qlcnic_wol_supported(adapter)) {
1669 pci_enable_wake(pdev, PCI_D3cold, 1);
1670 pci_enable_wake(pdev, PCI_D3hot, 1);
1671 }
1672
1673 return 0;
1674 }
1675
1676 static void qlcnic_shutdown(struct pci_dev *pdev)
1677 {
1678 if (__qlcnic_shutdown(pdev))
1679 return;
1680
1681 pci_disable_device(pdev);
1682 }
1683
1684 #ifdef CONFIG_PM
1685 static int
1686 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1687 {
1688 int retval;
1689
1690 retval = __qlcnic_shutdown(pdev);
1691 if (retval)
1692 return retval;
1693
1694 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1695 return 0;
1696 }
1697
1698 static int
1699 qlcnic_resume(struct pci_dev *pdev)
1700 {
1701 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1702 struct net_device *netdev = adapter->netdev;
1703 int err;
1704
1705 err = pci_enable_device(pdev);
1706 if (err)
1707 return err;
1708
1709 pci_set_power_state(pdev, PCI_D0);
1710 pci_set_master(pdev);
1711 pci_restore_state(pdev);
1712
1713 err = adapter->nic_ops->start_firmware(adapter);
1714 if (err) {
1715 dev_err(&pdev->dev, "failed to start firmware\n");
1716 return err;
1717 }
1718
1719 if (netif_running(netdev)) {
1720 err = qlcnic_up(adapter, netdev);
1721 if (err)
1722 goto done;
1723
1724 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1725 }
1726 done:
1727 netif_device_attach(netdev);
1728 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1729 return 0;
1730 }
1731 #endif
1732
1733 static int qlcnic_open(struct net_device *netdev)
1734 {
1735 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1736 int err;
1737
1738 err = qlcnic_attach(adapter);
1739 if (err)
1740 return err;
1741
1742 err = __qlcnic_up(adapter, netdev);
1743 if (err)
1744 goto err_out;
1745
1746 netif_start_queue(netdev);
1747
1748 return 0;
1749
1750 err_out:
1751 qlcnic_detach(adapter);
1752 return err;
1753 }
1754
1755 /*
1756 * qlcnic_close - Disables a network interface entry point
1757 */
1758 static int qlcnic_close(struct net_device *netdev)
1759 {
1760 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1761
1762 __qlcnic_down(adapter, netdev);
1763 return 0;
1764 }
1765
1766 static void
1767 qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
1768 {
1769 void *head;
1770 int i;
1771
1772 if (!qlcnic_mac_learn)
1773 return;
1774
1775 spin_lock_init(&adapter->mac_learn_lock);
1776
1777 head = kcalloc(QLCNIC_LB_MAX_FILTERS, sizeof(struct hlist_head),
1778 GFP_KERNEL);
1779 if (!head)
1780 return;
1781
1782 adapter->fhash.fmax = QLCNIC_LB_MAX_FILTERS;
1783 adapter->fhash.fhead = (struct hlist_head *)head;
1784
1785 for (i = 0; i < adapter->fhash.fmax; i++)
1786 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
1787 }
1788
1789 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
1790 {
1791 if (adapter->fhash.fmax && adapter->fhash.fhead)
1792 kfree(adapter->fhash.fhead);
1793
1794 adapter->fhash.fhead = NULL;
1795 adapter->fhash.fmax = 0;
1796 }
1797
1798 static void qlcnic_change_filter(struct qlcnic_adapter *adapter,
1799 u64 uaddr, __le16 vlan_id, struct qlcnic_host_tx_ring *tx_ring)
1800 {
1801 struct cmd_desc_type0 *hwdesc;
1802 struct qlcnic_nic_req *req;
1803 struct qlcnic_mac_req *mac_req;
1804 struct qlcnic_vlan_req *vlan_req;
1805 u32 producer;
1806 u64 word;
1807
1808 producer = tx_ring->producer;
1809 hwdesc = &tx_ring->desc_head[tx_ring->producer];
1810
1811 req = (struct qlcnic_nic_req *)hwdesc;
1812 memset(req, 0, sizeof(struct qlcnic_nic_req));
1813 req->qhdr = cpu_to_le64(QLCNIC_REQUEST << 23);
1814
1815 word = QLCNIC_MAC_EVENT | ((u64)(adapter->portnum) << 16);
1816 req->req_hdr = cpu_to_le64(word);
1817
1818 mac_req = (struct qlcnic_mac_req *)&(req->words[0]);
1819 mac_req->op = vlan_id ? QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_ADD;
1820 memcpy(mac_req->mac_addr, &uaddr, ETH_ALEN);
1821
1822 vlan_req = (struct qlcnic_vlan_req *)&req->words[1];
1823 vlan_req->vlan_id = vlan_id;
1824
1825 tx_ring->producer = get_next_index(producer, tx_ring->num_desc);
1826 }
1827
1828 #define QLCNIC_MAC_HASH(MAC)\
1829 ((((MAC) & 0x70000) >> 0x10) | (((MAC) & 0x70000000000ULL) >> 0x25))
1830
1831 static void
1832 qlcnic_send_filter(struct qlcnic_adapter *adapter,
1833 struct qlcnic_host_tx_ring *tx_ring,
1834 struct cmd_desc_type0 *first_desc,
1835 struct sk_buff *skb)
1836 {
1837 struct ethhdr *phdr = (struct ethhdr *)(skb->data);
1838 struct qlcnic_filter *fil, *tmp_fil;
1839 struct hlist_node *tmp_hnode, *n;
1840 struct hlist_head *head;
1841 u64 src_addr = 0;
1842 __le16 vlan_id = 0;
1843 u8 hindex;
1844
1845 if (!compare_ether_addr(phdr->h_source, adapter->mac_addr))
1846 return;
1847
1848 if (adapter->fhash.fnum >= adapter->fhash.fmax)
1849 return;
1850
1851 /* Only NPAR capable devices support vlan based learning*/
1852 if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
1853 vlan_id = first_desc->vlan_TCI;
1854 memcpy(&src_addr, phdr->h_source, ETH_ALEN);
1855 hindex = QLCNIC_MAC_HASH(src_addr) & (QLCNIC_LB_MAX_FILTERS - 1);
1856 head = &(adapter->fhash.fhead[hindex]);
1857
1858 hlist_for_each_entry_safe(tmp_fil, tmp_hnode, n, head, fnode) {
1859 if (!memcmp(tmp_fil->faddr, &src_addr, ETH_ALEN) &&
1860 tmp_fil->vlan_id == vlan_id) {
1861 tmp_fil->ftime = jiffies;
1862 return;
1863 }
1864 }
1865
1866 fil = kzalloc(sizeof(struct qlcnic_filter), GFP_ATOMIC);
1867 if (!fil)
1868 return;
1869
1870 qlcnic_change_filter(adapter, src_addr, vlan_id, tx_ring);
1871
1872 fil->ftime = jiffies;
1873 fil->vlan_id = vlan_id;
1874 memcpy(fil->faddr, &src_addr, ETH_ALEN);
1875 spin_lock(&adapter->mac_learn_lock);
1876 hlist_add_head(&(fil->fnode), head);
1877 adapter->fhash.fnum++;
1878 spin_unlock(&adapter->mac_learn_lock);
1879 }
1880
1881 static void
1882 qlcnic_tso_check(struct net_device *netdev,
1883 struct qlcnic_host_tx_ring *tx_ring,
1884 struct cmd_desc_type0 *first_desc,
1885 struct sk_buff *skb)
1886 {
1887 u8 opcode = TX_ETHER_PKT;
1888 __be16 protocol = skb->protocol;
1889 u16 flags = 0;
1890 int copied, offset, copy_len, hdr_len = 0, tso = 0;
1891 struct cmd_desc_type0 *hwdesc;
1892 struct vlan_ethhdr *vh;
1893 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1894 u32 producer = tx_ring->producer;
1895 __le16 vlan_oob = first_desc->flags_opcode &
1896 cpu_to_le16(FLAGS_VLAN_OOB);
1897
1898 if (*(skb->data) & BIT_0) {
1899 flags |= BIT_0;
1900 memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN);
1901 }
1902
1903 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1904 skb_shinfo(skb)->gso_size > 0) {
1905
1906 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1907
1908 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1909 first_desc->total_hdr_length = hdr_len;
1910 if (vlan_oob) {
1911 first_desc->total_hdr_length += VLAN_HLEN;
1912 first_desc->tcp_hdr_offset = VLAN_HLEN;
1913 first_desc->ip_hdr_offset = VLAN_HLEN;
1914 /* Only in case of TSO on vlan device */
1915 flags |= FLAGS_VLAN_TAGGED;
1916 }
1917
1918 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1919 TX_TCP_LSO6 : TX_TCP_LSO;
1920 tso = 1;
1921
1922 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1923 u8 l4proto;
1924
1925 if (protocol == cpu_to_be16(ETH_P_IP)) {
1926 l4proto = ip_hdr(skb)->protocol;
1927
1928 if (l4proto == IPPROTO_TCP)
1929 opcode = TX_TCP_PKT;
1930 else if (l4proto == IPPROTO_UDP)
1931 opcode = TX_UDP_PKT;
1932 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1933 l4proto = ipv6_hdr(skb)->nexthdr;
1934
1935 if (l4proto == IPPROTO_TCP)
1936 opcode = TX_TCPV6_PKT;
1937 else if (l4proto == IPPROTO_UDP)
1938 opcode = TX_UDPV6_PKT;
1939 }
1940 }
1941
1942 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1943 first_desc->ip_hdr_offset += skb_network_offset(skb);
1944 qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
1945
1946 if (!tso)
1947 return;
1948
1949 /* For LSO, we need to copy the MAC/IP/TCP headers into
1950 * the descriptor ring
1951 */
1952 copied = 0;
1953 offset = 2;
1954
1955 if (vlan_oob) {
1956 /* Create a TSO vlan header template for firmware */
1957
1958 hwdesc = &tx_ring->desc_head[producer];
1959 tx_ring->cmd_buf_arr[producer].skb = NULL;
1960
1961 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1962 hdr_len + VLAN_HLEN);
1963
1964 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1965 skb_copy_from_linear_data(skb, vh, 12);
1966 vh->h_vlan_proto = htons(ETH_P_8021Q);
1967 vh->h_vlan_TCI = (__be16)swab16((u16)first_desc->vlan_TCI);
1968
1969 skb_copy_from_linear_data_offset(skb, 12,
1970 (char *)vh + 16, copy_len - 16);
1971
1972 copied = copy_len - VLAN_HLEN;
1973 offset = 0;
1974
1975 producer = get_next_index(producer, tx_ring->num_desc);
1976 }
1977
1978 while (copied < hdr_len) {
1979
1980 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1981 (hdr_len - copied));
1982
1983 hwdesc = &tx_ring->desc_head[producer];
1984 tx_ring->cmd_buf_arr[producer].skb = NULL;
1985
1986 skb_copy_from_linear_data_offset(skb, copied,
1987 (char *)hwdesc + offset, copy_len);
1988
1989 copied += copy_len;
1990 offset = 0;
1991
1992 producer = get_next_index(producer, tx_ring->num_desc);
1993 }
1994
1995 tx_ring->producer = producer;
1996 barrier();
1997 adapter->stats.lso_frames++;
1998 }
1999
2000 static int
2001 qlcnic_map_tx_skb(struct pci_dev *pdev,
2002 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
2003 {
2004 struct qlcnic_skb_frag *nf;
2005 struct skb_frag_struct *frag;
2006 int i, nr_frags;
2007 dma_addr_t map;
2008
2009 nr_frags = skb_shinfo(skb)->nr_frags;
2010 nf = &pbuf->frag_array[0];
2011
2012 map = pci_map_single(pdev, skb->data,
2013 skb_headlen(skb), PCI_DMA_TODEVICE);
2014 if (pci_dma_mapping_error(pdev, map))
2015 goto out_err;
2016
2017 nf->dma = map;
2018 nf->length = skb_headlen(skb);
2019
2020 for (i = 0; i < nr_frags; i++) {
2021 frag = &skb_shinfo(skb)->frags[i];
2022 nf = &pbuf->frag_array[i+1];
2023
2024 map = pci_map_page(pdev, frag->page, frag->page_offset,
2025 frag->size, PCI_DMA_TODEVICE);
2026 if (pci_dma_mapping_error(pdev, map))
2027 goto unwind;
2028
2029 nf->dma = map;
2030 nf->length = frag->size;
2031 }
2032
2033 return 0;
2034
2035 unwind:
2036 while (--i >= 0) {
2037 nf = &pbuf->frag_array[i+1];
2038 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2039 }
2040
2041 nf = &pbuf->frag_array[0];
2042 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2043
2044 out_err:
2045 return -ENOMEM;
2046 }
2047
2048 static int
2049 qlcnic_check_tx_tagging(struct qlcnic_adapter *adapter,
2050 struct sk_buff *skb,
2051 struct cmd_desc_type0 *first_desc)
2052 {
2053 u8 opcode = 0;
2054 u16 flags = 0;
2055 __be16 protocol = skb->protocol;
2056 struct vlan_ethhdr *vh;
2057
2058 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
2059 vh = (struct vlan_ethhdr *)skb->data;
2060 protocol = vh->h_vlan_encapsulated_proto;
2061 flags = FLAGS_VLAN_TAGGED;
2062 qlcnic_set_tx_vlan_tci(first_desc, ntohs(vh->h_vlan_TCI));
2063 } else if (vlan_tx_tag_present(skb)) {
2064 flags = FLAGS_VLAN_OOB;
2065 qlcnic_set_tx_vlan_tci(first_desc, vlan_tx_tag_get(skb));
2066 }
2067 if (unlikely(adapter->pvid)) {
2068 if (first_desc->vlan_TCI &&
2069 !(adapter->flags & QLCNIC_TAGGING_ENABLED))
2070 return -EIO;
2071 if (first_desc->vlan_TCI &&
2072 (adapter->flags & QLCNIC_TAGGING_ENABLED))
2073 goto set_flags;
2074
2075 flags = FLAGS_VLAN_OOB;
2076 qlcnic_set_tx_vlan_tci(first_desc, adapter->pvid);
2077 }
2078 set_flags:
2079 qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
2080 return 0;
2081 }
2082
2083 static inline void
2084 qlcnic_clear_cmddesc(u64 *desc)
2085 {
2086 desc[0] = 0ULL;
2087 desc[2] = 0ULL;
2088 desc[7] = 0ULL;
2089 }
2090
2091 netdev_tx_t
2092 qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2093 {
2094 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2095 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2096 struct qlcnic_cmd_buffer *pbuf;
2097 struct qlcnic_skb_frag *buffrag;
2098 struct cmd_desc_type0 *hwdesc, *first_desc;
2099 struct pci_dev *pdev;
2100 struct ethhdr *phdr;
2101 int i, k;
2102
2103 u32 producer;
2104 int frag_count, no_of_desc;
2105 u32 num_txd = tx_ring->num_desc;
2106
2107 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
2108 netif_stop_queue(netdev);
2109 return NETDEV_TX_BUSY;
2110 }
2111
2112 if (adapter->flags & QLCNIC_MACSPOOF) {
2113 phdr = (struct ethhdr *)skb->data;
2114 if (compare_ether_addr(phdr->h_source,
2115 adapter->mac_addr))
2116 goto drop_packet;
2117 }
2118
2119 frag_count = skb_shinfo(skb)->nr_frags + 1;
2120
2121 /* 4 fragments per cmd des */
2122 no_of_desc = (frag_count + 3) >> 2;
2123
2124 if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2125 netif_stop_queue(netdev);
2126 smp_mb();
2127 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
2128 netif_start_queue(netdev);
2129 else {
2130 adapter->stats.xmit_off++;
2131 return NETDEV_TX_BUSY;
2132 }
2133 }
2134
2135 producer = tx_ring->producer;
2136 pbuf = &tx_ring->cmd_buf_arr[producer];
2137
2138 pdev = adapter->pdev;
2139
2140 first_desc = hwdesc = &tx_ring->desc_head[producer];
2141 qlcnic_clear_cmddesc((u64 *)hwdesc);
2142
2143 if (qlcnic_check_tx_tagging(adapter, skb, first_desc))
2144 goto drop_packet;
2145
2146 if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
2147 adapter->stats.tx_dma_map_error++;
2148 goto drop_packet;
2149 }
2150
2151 pbuf->skb = skb;
2152 pbuf->frag_count = frag_count;
2153
2154 qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
2155 qlcnic_set_tx_port(first_desc, adapter->portnum);
2156
2157 for (i = 0; i < frag_count; i++) {
2158
2159 k = i % 4;
2160
2161 if ((k == 0) && (i > 0)) {
2162 /* move to next desc.*/
2163 producer = get_next_index(producer, num_txd);
2164 hwdesc = &tx_ring->desc_head[producer];
2165 qlcnic_clear_cmddesc((u64 *)hwdesc);
2166 tx_ring->cmd_buf_arr[producer].skb = NULL;
2167 }
2168
2169 buffrag = &pbuf->frag_array[i];
2170
2171 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2172 switch (k) {
2173 case 0:
2174 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2175 break;
2176 case 1:
2177 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2178 break;
2179 case 2:
2180 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2181 break;
2182 case 3:
2183 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2184 break;
2185 }
2186 }
2187
2188 tx_ring->producer = get_next_index(producer, num_txd);
2189
2190 qlcnic_tso_check(netdev, tx_ring, first_desc, skb);
2191
2192 if (qlcnic_mac_learn)
2193 qlcnic_send_filter(adapter, tx_ring, first_desc, skb);
2194
2195 qlcnic_update_cmd_producer(adapter, tx_ring);
2196
2197 adapter->stats.txbytes += skb->len;
2198 adapter->stats.xmitcalled++;
2199
2200 return NETDEV_TX_OK;
2201
2202 drop_packet:
2203 adapter->stats.txdropped++;
2204 dev_kfree_skb_any(skb);
2205 return NETDEV_TX_OK;
2206 }
2207
2208 static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2209 {
2210 struct net_device *netdev = adapter->netdev;
2211 u32 temp, temp_state, temp_val;
2212 int rv = 0;
2213
2214 temp = QLCRD32(adapter, CRB_TEMP_STATE);
2215
2216 temp_state = qlcnic_get_temp_state(temp);
2217 temp_val = qlcnic_get_temp_val(temp);
2218
2219 if (temp_state == QLCNIC_TEMP_PANIC) {
2220 dev_err(&netdev->dev,
2221 "Device temperature %d degrees C exceeds"
2222 " maximum allowed. Hardware has been shut down.\n",
2223 temp_val);
2224 rv = 1;
2225 } else if (temp_state == QLCNIC_TEMP_WARN) {
2226 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
2227 dev_err(&netdev->dev,
2228 "Device temperature %d degrees C "
2229 "exceeds operating range."
2230 " Immediate action needed.\n",
2231 temp_val);
2232 }
2233 } else {
2234 if (adapter->temp == QLCNIC_TEMP_WARN) {
2235 dev_info(&netdev->dev,
2236 "Device temperature is now %d degrees C"
2237 " in normal range.\n", temp_val);
2238 }
2239 }
2240 adapter->temp = temp_state;
2241 return rv;
2242 }
2243
2244 void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
2245 {
2246 struct net_device *netdev = adapter->netdev;
2247
2248 if (adapter->ahw.linkup && !linkup) {
2249 netdev_info(netdev, "NIC Link is down\n");
2250 adapter->ahw.linkup = 0;
2251 if (netif_running(netdev)) {
2252 netif_carrier_off(netdev);
2253 netif_stop_queue(netdev);
2254 }
2255 } else if (!adapter->ahw.linkup && linkup) {
2256 netdev_info(netdev, "NIC Link is up\n");
2257 adapter->ahw.linkup = 1;
2258 if (netif_running(netdev)) {
2259 netif_carrier_on(netdev);
2260 netif_wake_queue(netdev);
2261 }
2262 }
2263 }
2264
2265 static void qlcnic_tx_timeout(struct net_device *netdev)
2266 {
2267 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2268
2269 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2270 return;
2271
2272 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2273
2274 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2275 adapter->need_fw_reset = 1;
2276 else
2277 adapter->reset_context = 1;
2278 }
2279
2280 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2281 {
2282 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2283 struct net_device_stats *stats = &netdev->stats;
2284
2285 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2286 stats->tx_packets = adapter->stats.xmitfinished;
2287 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2288 stats->tx_bytes = adapter->stats.txbytes;
2289 stats->rx_dropped = adapter->stats.rxdropped;
2290 stats->tx_dropped = adapter->stats.txdropped;
2291
2292 return stats;
2293 }
2294
2295 static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
2296 {
2297 u32 status;
2298
2299 status = readl(adapter->isr_int_vec);
2300
2301 if (!(status & adapter->int_vec_bit))
2302 return IRQ_NONE;
2303
2304 /* check interrupt state machine, to be sure */
2305 status = readl(adapter->crb_int_state_reg);
2306 if (!ISR_LEGACY_INT_TRIGGERED(status))
2307 return IRQ_NONE;
2308
2309 writel(0xffffffff, adapter->tgt_status_reg);
2310 /* read twice to ensure write is flushed */
2311 readl(adapter->isr_int_vec);
2312 readl(adapter->isr_int_vec);
2313
2314 return IRQ_HANDLED;
2315 }
2316
2317 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2318 {
2319 struct qlcnic_host_sds_ring *sds_ring = data;
2320 struct qlcnic_adapter *adapter = sds_ring->adapter;
2321
2322 if (adapter->flags & QLCNIC_MSIX_ENABLED)
2323 goto done;
2324 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2325 writel(0xffffffff, adapter->tgt_status_reg);
2326 goto done;
2327 }
2328
2329 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2330 return IRQ_NONE;
2331
2332 done:
2333 adapter->diag_cnt++;
2334 qlcnic_enable_int(sds_ring);
2335 return IRQ_HANDLED;
2336 }
2337
2338 static irqreturn_t qlcnic_intr(int irq, void *data)
2339 {
2340 struct qlcnic_host_sds_ring *sds_ring = data;
2341 struct qlcnic_adapter *adapter = sds_ring->adapter;
2342
2343 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2344 return IRQ_NONE;
2345
2346 napi_schedule(&sds_ring->napi);
2347
2348 return IRQ_HANDLED;
2349 }
2350
2351 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2352 {
2353 struct qlcnic_host_sds_ring *sds_ring = data;
2354 struct qlcnic_adapter *adapter = sds_ring->adapter;
2355
2356 /* clear interrupt */
2357 writel(0xffffffff, adapter->tgt_status_reg);
2358
2359 napi_schedule(&sds_ring->napi);
2360 return IRQ_HANDLED;
2361 }
2362
2363 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2364 {
2365 struct qlcnic_host_sds_ring *sds_ring = data;
2366
2367 napi_schedule(&sds_ring->napi);
2368 return IRQ_HANDLED;
2369 }
2370
2371 static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
2372 {
2373 u32 sw_consumer, hw_consumer;
2374 int count = 0, i;
2375 struct qlcnic_cmd_buffer *buffer;
2376 struct pci_dev *pdev = adapter->pdev;
2377 struct net_device *netdev = adapter->netdev;
2378 struct qlcnic_skb_frag *frag;
2379 int done;
2380 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2381
2382 if (!spin_trylock(&adapter->tx_clean_lock))
2383 return 1;
2384
2385 sw_consumer = tx_ring->sw_consumer;
2386 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2387
2388 while (sw_consumer != hw_consumer) {
2389 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
2390 if (buffer->skb) {
2391 frag = &buffer->frag_array[0];
2392 pci_unmap_single(pdev, frag->dma, frag->length,
2393 PCI_DMA_TODEVICE);
2394 frag->dma = 0ULL;
2395 for (i = 1; i < buffer->frag_count; i++) {
2396 frag++;
2397 pci_unmap_page(pdev, frag->dma, frag->length,
2398 PCI_DMA_TODEVICE);
2399 frag->dma = 0ULL;
2400 }
2401
2402 adapter->stats.xmitfinished++;
2403 dev_kfree_skb_any(buffer->skb);
2404 buffer->skb = NULL;
2405 }
2406
2407 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
2408 if (++count >= MAX_STATUS_HANDLE)
2409 break;
2410 }
2411
2412 if (count && netif_running(netdev)) {
2413 tx_ring->sw_consumer = sw_consumer;
2414
2415 smp_mb();
2416
2417 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
2418 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
2419 netif_wake_queue(netdev);
2420 adapter->stats.xmit_on++;
2421 }
2422 }
2423 adapter->tx_timeo_cnt = 0;
2424 }
2425 /*
2426 * If everything is freed up to consumer then check if the ring is full
2427 * If the ring is full then check if more needs to be freed and
2428 * schedule the call back again.
2429 *
2430 * This happens when there are 2 CPUs. One could be freeing and the
2431 * other filling it. If the ring is full when we get out of here and
2432 * the card has already interrupted the host then the host can miss the
2433 * interrupt.
2434 *
2435 * There is still a possible race condition and the host could miss an
2436 * interrupt. The card has to take care of this.
2437 */
2438 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2439 done = (sw_consumer == hw_consumer);
2440 spin_unlock(&adapter->tx_clean_lock);
2441
2442 return done;
2443 }
2444
2445 static int qlcnic_poll(struct napi_struct *napi, int budget)
2446 {
2447 struct qlcnic_host_sds_ring *sds_ring =
2448 container_of(napi, struct qlcnic_host_sds_ring, napi);
2449
2450 struct qlcnic_adapter *adapter = sds_ring->adapter;
2451
2452 int tx_complete;
2453 int work_done;
2454
2455 tx_complete = qlcnic_process_cmd_ring(adapter);
2456
2457 work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2458
2459 if ((work_done < budget) && tx_complete) {
2460 napi_complete(&sds_ring->napi);
2461 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2462 qlcnic_enable_int(sds_ring);
2463 }
2464
2465 return work_done;
2466 }
2467
2468 static int qlcnic_rx_poll(struct napi_struct *napi, int budget)
2469 {
2470 struct qlcnic_host_sds_ring *sds_ring =
2471 container_of(napi, struct qlcnic_host_sds_ring, napi);
2472
2473 struct qlcnic_adapter *adapter = sds_ring->adapter;
2474 int work_done;
2475
2476 work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2477
2478 if (work_done < budget) {
2479 napi_complete(&sds_ring->napi);
2480 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2481 qlcnic_enable_int(sds_ring);
2482 }
2483
2484 return work_done;
2485 }
2486
2487 #ifdef CONFIG_NET_POLL_CONTROLLER
2488 static void qlcnic_poll_controller(struct net_device *netdev)
2489 {
2490 int ring;
2491 struct qlcnic_host_sds_ring *sds_ring;
2492 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2493 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
2494
2495 disable_irq(adapter->irq);
2496 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2497 sds_ring = &recv_ctx->sds_rings[ring];
2498 qlcnic_intr(adapter->irq, sds_ring);
2499 }
2500 enable_irq(adapter->irq);
2501 }
2502 #endif
2503
2504 static void
2505 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2506 {
2507 u32 val;
2508
2509 val = adapter->portnum & 0xf;
2510 val |= encoding << 7;
2511 val |= (jiffies - adapter->dev_rst_time) << 8;
2512
2513 QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2514 adapter->dev_rst_time = jiffies;
2515 }
2516
2517 static int
2518 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2519 {
2520 u32 val;
2521
2522 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2523 state != QLCNIC_DEV_NEED_QUISCENT);
2524
2525 if (qlcnic_api_lock(adapter))
2526 return -EIO;
2527
2528 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2529
2530 if (state == QLCNIC_DEV_NEED_RESET)
2531 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2532 else if (state == QLCNIC_DEV_NEED_QUISCENT)
2533 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2534
2535 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2536
2537 qlcnic_api_unlock(adapter);
2538
2539 return 0;
2540 }
2541
2542 static int
2543 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2544 {
2545 u32 val;
2546
2547 if (qlcnic_api_lock(adapter))
2548 return -EBUSY;
2549
2550 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2551 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2552 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2553
2554 qlcnic_api_unlock(adapter);
2555
2556 return 0;
2557 }
2558
2559 static void
2560 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2561 {
2562 u32 val;
2563
2564 if (qlcnic_api_lock(adapter))
2565 goto err;
2566
2567 val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2568 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2569 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2570
2571 if (failed) {
2572 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
2573 dev_info(&adapter->pdev->dev,
2574 "Device state set to Failed. Please Reboot\n");
2575 } else if (!(val & 0x11111111))
2576 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
2577
2578 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2579 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2580 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2581
2582 qlcnic_api_unlock(adapter);
2583 err:
2584 adapter->fw_fail_cnt = 0;
2585 clear_bit(__QLCNIC_START_FW, &adapter->state);
2586 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2587 }
2588
2589 /* Grab api lock, before checking state */
2590 static int
2591 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2592 {
2593 int act, state;
2594
2595 state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2596 act = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2597
2598 if (((state & 0x11111111) == (act & 0x11111111)) ||
2599 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2600 return 0;
2601 else
2602 return 1;
2603 }
2604
2605 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2606 {
2607 u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2608
2609 if (val != QLCNIC_DRV_IDC_VER) {
2610 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2611 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2612 }
2613
2614 return 0;
2615 }
2616
2617 static int
2618 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2619 {
2620 u32 val, prev_state;
2621 u8 dev_init_timeo = adapter->dev_init_timeo;
2622 u8 portnum = adapter->portnum;
2623 u8 ret;
2624
2625 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2626 return 1;
2627
2628 if (qlcnic_api_lock(adapter))
2629 return -1;
2630
2631 val = QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2632 if (!(val & (1 << (portnum * 4)))) {
2633 QLC_DEV_SET_REF_CNT(val, portnum);
2634 QLCWR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2635 }
2636
2637 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2638 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2639
2640 switch (prev_state) {
2641 case QLCNIC_DEV_COLD:
2642 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
2643 QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER);
2644 qlcnic_idc_debug_info(adapter, 0);
2645 qlcnic_api_unlock(adapter);
2646 return 1;
2647
2648 case QLCNIC_DEV_READY:
2649 ret = qlcnic_check_idc_ver(adapter);
2650 qlcnic_api_unlock(adapter);
2651 return ret;
2652
2653 case QLCNIC_DEV_NEED_RESET:
2654 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2655 QLC_DEV_SET_RST_RDY(val, portnum);
2656 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2657 break;
2658
2659 case QLCNIC_DEV_NEED_QUISCENT:
2660 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2661 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2662 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2663 break;
2664
2665 case QLCNIC_DEV_FAILED:
2666 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2667 qlcnic_api_unlock(adapter);
2668 return -1;
2669
2670 case QLCNIC_DEV_INITIALIZING:
2671 case QLCNIC_DEV_QUISCENT:
2672 break;
2673 }
2674
2675 qlcnic_api_unlock(adapter);
2676
2677 do {
2678 msleep(1000);
2679 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2680
2681 if (prev_state == QLCNIC_DEV_QUISCENT)
2682 continue;
2683 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2684
2685 if (!dev_init_timeo) {
2686 dev_err(&adapter->pdev->dev,
2687 "Waiting for device to initialize timeout\n");
2688 return -1;
2689 }
2690
2691 if (qlcnic_api_lock(adapter))
2692 return -1;
2693
2694 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2695 QLC_DEV_CLR_RST_QSCNT(val, portnum);
2696 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2697
2698 ret = qlcnic_check_idc_ver(adapter);
2699 qlcnic_api_unlock(adapter);
2700
2701 return ret;
2702 }
2703
2704 static void
2705 qlcnic_fwinit_work(struct work_struct *work)
2706 {
2707 struct qlcnic_adapter *adapter = container_of(work,
2708 struct qlcnic_adapter, fw_work.work);
2709 u32 dev_state = 0xf;
2710
2711 if (qlcnic_api_lock(adapter))
2712 goto err_ret;
2713
2714 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2715 if (dev_state == QLCNIC_DEV_QUISCENT ||
2716 dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2717 qlcnic_api_unlock(adapter);
2718 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2719 FW_POLL_DELAY * 2);
2720 return;
2721 }
2722
2723 if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
2724 qlcnic_api_unlock(adapter);
2725 goto wait_npar;
2726 }
2727
2728 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2729 dev_err(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2730 adapter->reset_ack_timeo);
2731 goto skip_ack_check;
2732 }
2733
2734 if (!qlcnic_check_drv_state(adapter)) {
2735 skip_ack_check:
2736 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2737
2738 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2739 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2740 QLCNIC_DEV_INITIALIZING);
2741 set_bit(__QLCNIC_START_FW, &adapter->state);
2742 QLCDB(adapter, DRV, "Restarting fw\n");
2743 qlcnic_idc_debug_info(adapter, 0);
2744 }
2745
2746 qlcnic_api_unlock(adapter);
2747
2748 if (!adapter->nic_ops->start_firmware(adapter)) {
2749 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2750 adapter->fw_wait_cnt = 0;
2751 return;
2752 }
2753 goto err_ret;
2754 }
2755
2756 qlcnic_api_unlock(adapter);
2757
2758 wait_npar:
2759 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2760 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2761
2762 switch (dev_state) {
2763 case QLCNIC_DEV_READY:
2764 if (!adapter->nic_ops->start_firmware(adapter)) {
2765 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2766 adapter->fw_wait_cnt = 0;
2767 return;
2768 }
2769 case QLCNIC_DEV_FAILED:
2770 break;
2771 default:
2772 qlcnic_schedule_work(adapter,
2773 qlcnic_fwinit_work, FW_POLL_DELAY);
2774 return;
2775 }
2776
2777 err_ret:
2778 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2779 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2780 netif_device_attach(adapter->netdev);
2781 qlcnic_clr_all_drv_state(adapter, 0);
2782 }
2783
2784 static void
2785 qlcnic_detach_work(struct work_struct *work)
2786 {
2787 struct qlcnic_adapter *adapter = container_of(work,
2788 struct qlcnic_adapter, fw_work.work);
2789 struct net_device *netdev = adapter->netdev;
2790 u32 status;
2791
2792 netif_device_detach(netdev);
2793
2794 /* Dont grab rtnl lock during Quiscent mode */
2795 if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2796 if (netif_running(netdev))
2797 __qlcnic_down(adapter, netdev);
2798 } else
2799 qlcnic_down(adapter, netdev);
2800
2801 status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2802
2803 if (status & QLCNIC_RCODE_FATAL_ERROR)
2804 goto err_ret;
2805
2806 if (adapter->temp == QLCNIC_TEMP_PANIC)
2807 goto err_ret;
2808
2809 if (qlcnic_set_drv_state(adapter, adapter->dev_state))
2810 goto err_ret;
2811
2812 adapter->fw_wait_cnt = 0;
2813
2814 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2815
2816 return;
2817
2818 err_ret:
2819 dev_err(&adapter->pdev->dev, "detach failed; status=%d temp=%d\n",
2820 status, adapter->temp);
2821 netif_device_attach(netdev);
2822 qlcnic_clr_all_drv_state(adapter, 1);
2823 }
2824
2825 /*Transit NPAR state to NON Operational */
2826 static void
2827 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2828 {
2829 u32 state;
2830
2831 state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2832 if (state == QLCNIC_DEV_NPAR_NON_OPER)
2833 return;
2834
2835 if (qlcnic_api_lock(adapter))
2836 return;
2837 QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2838 qlcnic_api_unlock(adapter);
2839 }
2840
2841 /* Caller should held RESETTING bit.
2842 * This should be call in sync with qlcnic_request_quiscent_mode.
2843 */
2844 void qlcnic_clear_quiscent_mode(struct qlcnic_adapter *adapter)
2845 {
2846 qlcnic_clr_drv_state(adapter);
2847 qlcnic_api_lock(adapter);
2848 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
2849 qlcnic_api_unlock(adapter);
2850 }
2851
2852 /* Caller should held RESETTING bit.
2853 */
2854 int qlcnic_request_quiscent_mode(struct qlcnic_adapter *adapter)
2855 {
2856 u8 timeo = adapter->dev_init_timeo / 2;
2857 u32 state;
2858
2859 if (qlcnic_api_lock(adapter))
2860 return -EIO;
2861
2862 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2863 if (state != QLCNIC_DEV_READY)
2864 return -EIO;
2865
2866 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_QUISCENT);
2867 qlcnic_api_unlock(adapter);
2868 QLCDB(adapter, DRV, "NEED QUISCENT state set\n");
2869 qlcnic_idc_debug_info(adapter, 0);
2870
2871 qlcnic_set_drv_state(adapter, QLCNIC_DEV_NEED_QUISCENT);
2872
2873 do {
2874 msleep(2000);
2875 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2876 if (state == QLCNIC_DEV_QUISCENT)
2877 return 0;
2878 if (!qlcnic_check_drv_state(adapter)) {
2879 if (qlcnic_api_lock(adapter))
2880 return -EIO;
2881 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2882 QLCNIC_DEV_QUISCENT);
2883 qlcnic_api_unlock(adapter);
2884 QLCDB(adapter, DRV, "QUISCENT mode set\n");
2885 return 0;
2886 }
2887 } while (--timeo);
2888
2889 dev_err(&adapter->pdev->dev, "Failed to quiesce device, DRV_STATE=%08x"
2890 " DRV_ACTIVE=%08x\n", QLCRD32(adapter, QLCNIC_CRB_DRV_STATE),
2891 QLCRD32(adapter, QLCNIC_CRB_DRV_ACTIVE));
2892 qlcnic_clear_quiscent_mode(adapter);
2893 return -EIO;
2894 }
2895
2896 /*Transit to RESET state from READY state only */
2897 static void
2898 qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
2899 {
2900 u32 state;
2901
2902 adapter->need_fw_reset = 1;
2903 if (qlcnic_api_lock(adapter))
2904 return;
2905
2906 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2907
2908 if (state == QLCNIC_DEV_READY) {
2909 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
2910 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2911 qlcnic_idc_debug_info(adapter, 0);
2912 }
2913
2914 QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_NON_OPER);
2915 qlcnic_api_unlock(adapter);
2916 }
2917
2918 /* Transit to NPAR READY state from NPAR NOT READY state */
2919 static void
2920 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2921 {
2922 if (qlcnic_api_lock(adapter))
2923 return;
2924
2925 QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE, QLCNIC_DEV_NPAR_OPER);
2926 QLCDB(adapter, DRV, "NPAR operational state set\n");
2927
2928 qlcnic_api_unlock(adapter);
2929 }
2930
2931 static void
2932 qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2933 work_func_t func, int delay)
2934 {
2935 if (test_bit(__QLCNIC_AER, &adapter->state))
2936 return;
2937
2938 INIT_DELAYED_WORK(&adapter->fw_work, func);
2939 queue_delayed_work(qlcnic_wq, &adapter->fw_work,
2940 round_jiffies_relative(delay));
2941 }
2942
2943 static void
2944 qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
2945 {
2946 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2947 msleep(10);
2948
2949 cancel_delayed_work_sync(&adapter->fw_work);
2950 }
2951
2952 static void
2953 qlcnic_attach_work(struct work_struct *work)
2954 {
2955 struct qlcnic_adapter *adapter = container_of(work,
2956 struct qlcnic_adapter, fw_work.work);
2957 struct net_device *netdev = adapter->netdev;
2958 u32 npar_state;
2959
2960 if (adapter->op_mode != QLCNIC_MGMT_FUNC) {
2961 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2962 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2963 qlcnic_clr_all_drv_state(adapter, 0);
2964 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2965 qlcnic_schedule_work(adapter, qlcnic_attach_work,
2966 FW_POLL_DELAY);
2967 else
2968 goto attach;
2969 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2970 return;
2971 }
2972 attach:
2973 if (netif_running(netdev)) {
2974 if (qlcnic_up(adapter, netdev))
2975 goto done;
2976
2977 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2978 }
2979
2980 done:
2981 netif_device_attach(netdev);
2982 adapter->fw_fail_cnt = 0;
2983 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2984
2985 if (!qlcnic_clr_drv_state(adapter))
2986 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2987 FW_POLL_DELAY);
2988 }
2989
2990 static int
2991 qlcnic_check_health(struct qlcnic_adapter *adapter)
2992 {
2993 u32 state = 0, heartbeat;
2994 struct net_device *netdev = adapter->netdev;
2995
2996 if (qlcnic_check_temp(adapter))
2997 goto detach;
2998
2999 if (adapter->need_fw_reset)
3000 qlcnic_dev_request_reset(adapter);
3001
3002 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
3003 if (state == QLCNIC_DEV_NEED_RESET) {
3004 qlcnic_set_npar_non_operational(adapter);
3005 adapter->need_fw_reset = 1;
3006 } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3007 goto detach;
3008
3009 heartbeat = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3010 if (heartbeat != adapter->heartbeat) {
3011 adapter->heartbeat = heartbeat;
3012 adapter->fw_fail_cnt = 0;
3013 if (adapter->need_fw_reset)
3014 goto detach;
3015
3016 if (adapter->reset_context &&
3017 auto_fw_reset == AUTO_FW_RESET_ENABLED) {
3018 qlcnic_reset_hw_context(adapter);
3019 adapter->netdev->trans_start = jiffies;
3020 }
3021
3022 return 0;
3023 }
3024
3025 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3026 return 0;
3027
3028 qlcnic_dev_request_reset(adapter);
3029
3030 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED))
3031 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3032
3033 dev_info(&netdev->dev, "firmware hang detected\n");
3034
3035 detach:
3036 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3037 QLCNIC_DEV_NEED_RESET;
3038
3039 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
3040 !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) {
3041
3042 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3043 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3044 }
3045
3046 return 1;
3047 }
3048
3049 static void
3050 qlcnic_fw_poll_work(struct work_struct *work)
3051 {
3052 struct qlcnic_adapter *adapter = container_of(work,
3053 struct qlcnic_adapter, fw_work.work);
3054
3055 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3056 goto reschedule;
3057
3058
3059 if (qlcnic_check_health(adapter))
3060 return;
3061
3062 if (adapter->fhash.fnum)
3063 qlcnic_prune_lb_filters(adapter);
3064
3065 reschedule:
3066 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3067 }
3068
3069 static int qlcnic_is_first_func(struct pci_dev *pdev)
3070 {
3071 struct pci_dev *oth_pdev;
3072 int val = pdev->devfn;
3073
3074 while (val-- > 0) {
3075 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3076 (pdev->bus), pdev->bus->number,
3077 PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3078 if (!oth_pdev)
3079 continue;
3080
3081 if (oth_pdev->current_state != PCI_D3cold) {
3082 pci_dev_put(oth_pdev);
3083 return 0;
3084 }
3085 pci_dev_put(oth_pdev);
3086 }
3087 return 1;
3088 }
3089
3090 static int qlcnic_attach_func(struct pci_dev *pdev)
3091 {
3092 int err, first_func;
3093 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3094 struct net_device *netdev = adapter->netdev;
3095
3096 pdev->error_state = pci_channel_io_normal;
3097
3098 err = pci_enable_device(pdev);
3099 if (err)
3100 return err;
3101
3102 pci_set_power_state(pdev, PCI_D0);
3103 pci_set_master(pdev);
3104 pci_restore_state(pdev);
3105
3106 first_func = qlcnic_is_first_func(pdev);
3107
3108 if (qlcnic_api_lock(adapter))
3109 return -EINVAL;
3110
3111 if (adapter->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3112 adapter->need_fw_reset = 1;
3113 set_bit(__QLCNIC_START_FW, &adapter->state);
3114 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
3115 QLCDB(adapter, DRV, "Restarting fw\n");
3116 }
3117 qlcnic_api_unlock(adapter);
3118
3119 err = adapter->nic_ops->start_firmware(adapter);
3120 if (err)
3121 return err;
3122
3123 qlcnic_clr_drv_state(adapter);
3124 qlcnic_setup_intr(adapter);
3125
3126 if (netif_running(netdev)) {
3127 err = qlcnic_attach(adapter);
3128 if (err) {
3129 qlcnic_clr_all_drv_state(adapter, 1);
3130 clear_bit(__QLCNIC_AER, &adapter->state);
3131 netif_device_attach(netdev);
3132 return err;
3133 }
3134
3135 err = qlcnic_up(adapter, netdev);
3136 if (err)
3137 goto done;
3138
3139 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3140 }
3141 done:
3142 netif_device_attach(netdev);
3143 return err;
3144 }
3145
3146 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3147 pci_channel_state_t state)
3148 {
3149 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3150 struct net_device *netdev = adapter->netdev;
3151
3152 if (state == pci_channel_io_perm_failure)
3153 return PCI_ERS_RESULT_DISCONNECT;
3154
3155 if (state == pci_channel_io_normal)
3156 return PCI_ERS_RESULT_RECOVERED;
3157
3158 set_bit(__QLCNIC_AER, &adapter->state);
3159 netif_device_detach(netdev);
3160
3161 cancel_delayed_work_sync(&adapter->fw_work);
3162
3163 if (netif_running(netdev))
3164 qlcnic_down(adapter, netdev);
3165
3166 qlcnic_detach(adapter);
3167 qlcnic_teardown_intr(adapter);
3168
3169 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3170
3171 pci_save_state(pdev);
3172 pci_disable_device(pdev);
3173
3174 return PCI_ERS_RESULT_NEED_RESET;
3175 }
3176
3177 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3178 {
3179 return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3180 PCI_ERS_RESULT_RECOVERED;
3181 }
3182
3183 static void qlcnic_io_resume(struct pci_dev *pdev)
3184 {
3185 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3186
3187 pci_cleanup_aer_uncorrect_error_status(pdev);
3188
3189 if (QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) == QLCNIC_DEV_READY &&
3190 test_and_clear_bit(__QLCNIC_AER, &adapter->state))
3191 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3192 FW_POLL_DELAY);
3193 }
3194
3195 static int
3196 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3197 {
3198 int err;
3199
3200 err = qlcnic_can_start_firmware(adapter);
3201 if (err)
3202 return err;
3203
3204 err = qlcnic_check_npar_opertional(adapter);
3205 if (err)
3206 return err;
3207
3208 err = qlcnic_initialize_nic(adapter);
3209 if (err)
3210 return err;
3211
3212 qlcnic_check_options(adapter);
3213
3214 err = qlcnic_set_eswitch_port_config(adapter);
3215 if (err)
3216 return err;
3217
3218 adapter->need_fw_reset = 0;
3219
3220 return err;
3221 }
3222
3223 static int
3224 qlcnicvf_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
3225 {
3226 return -EOPNOTSUPP;
3227 }
3228
3229 static int
3230 qlcnicvf_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
3231 {
3232 return -EOPNOTSUPP;
3233 }
3234
3235 static ssize_t
3236 qlcnic_store_bridged_mode(struct device *dev,
3237 struct device_attribute *attr, const char *buf, size_t len)
3238 {
3239 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3240 unsigned long new;
3241 int ret = -EINVAL;
3242
3243 if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
3244 goto err_out;
3245
3246 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3247 goto err_out;
3248
3249 if (strict_strtoul(buf, 2, &new))
3250 goto err_out;
3251
3252 if (!adapter->nic_ops->config_bridged_mode(adapter, !!new))
3253 ret = len;
3254
3255 err_out:
3256 return ret;
3257 }
3258
3259 static ssize_t
3260 qlcnic_show_bridged_mode(struct device *dev,
3261 struct device_attribute *attr, char *buf)
3262 {
3263 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3264 int bridged_mode = 0;
3265
3266 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3267 bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
3268
3269 return sprintf(buf, "%d\n", bridged_mode);
3270 }
3271
3272 static struct device_attribute dev_attr_bridged_mode = {
3273 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
3274 .show = qlcnic_show_bridged_mode,
3275 .store = qlcnic_store_bridged_mode,
3276 };
3277
3278 static ssize_t
3279 qlcnic_store_diag_mode(struct device *dev,
3280 struct device_attribute *attr, const char *buf, size_t len)
3281 {
3282 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3283 unsigned long new;
3284
3285 if (strict_strtoul(buf, 2, &new))
3286 return -EINVAL;
3287
3288 if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
3289 adapter->flags ^= QLCNIC_DIAG_ENABLED;
3290
3291 return len;
3292 }
3293
3294 static ssize_t
3295 qlcnic_show_diag_mode(struct device *dev,
3296 struct device_attribute *attr, char *buf)
3297 {
3298 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3299
3300 return sprintf(buf, "%d\n",
3301 !!(adapter->flags & QLCNIC_DIAG_ENABLED));
3302 }
3303
3304 static struct device_attribute dev_attr_diag_mode = {
3305 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
3306 .show = qlcnic_show_diag_mode,
3307 .store = qlcnic_store_diag_mode,
3308 };
3309
3310 static int
3311 qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
3312 loff_t offset, size_t size)
3313 {
3314 size_t crb_size = 4;
3315
3316 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3317 return -EIO;
3318
3319 if (offset < QLCNIC_PCI_CRBSPACE) {
3320 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM,
3321 QLCNIC_PCI_CAMQM_END))
3322 crb_size = 8;
3323 else
3324 return -EINVAL;
3325 }
3326
3327 if ((size != crb_size) || (offset & (crb_size-1)))
3328 return -EINVAL;
3329
3330 return 0;
3331 }
3332
3333 static ssize_t
3334 qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj,
3335 struct bin_attribute *attr,
3336 char *buf, loff_t offset, size_t size)
3337 {
3338 struct device *dev = container_of(kobj, struct device, kobj);
3339 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3340 u32 data;
3341 u64 qmdata;
3342 int ret;
3343
3344 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3345 if (ret != 0)
3346 return ret;
3347
3348 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3349 qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
3350 memcpy(buf, &qmdata, size);
3351 } else {
3352 data = QLCRD32(adapter, offset);
3353 memcpy(buf, &data, size);
3354 }
3355 return size;
3356 }
3357
3358 static ssize_t
3359 qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj,
3360 struct bin_attribute *attr,
3361 char *buf, loff_t offset, size_t size)
3362 {
3363 struct device *dev = container_of(kobj, struct device, kobj);
3364 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3365 u32 data;
3366 u64 qmdata;
3367 int ret;
3368
3369 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
3370 if (ret != 0)
3371 return ret;
3372
3373 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
3374 memcpy(&qmdata, buf, size);
3375 qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
3376 } else {
3377 memcpy(&data, buf, size);
3378 QLCWR32(adapter, offset, data);
3379 }
3380 return size;
3381 }
3382
3383 static int
3384 qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
3385 loff_t offset, size_t size)
3386 {
3387 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
3388 return -EIO;
3389
3390 if ((size != 8) || (offset & 0x7))
3391 return -EIO;
3392
3393 return 0;
3394 }
3395
3396 static ssize_t
3397 qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj,
3398 struct bin_attribute *attr,
3399 char *buf, loff_t offset, size_t size)
3400 {
3401 struct device *dev = container_of(kobj, struct device, kobj);
3402 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3403 u64 data;
3404 int ret;
3405
3406 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3407 if (ret != 0)
3408 return ret;
3409
3410 if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
3411 return -EIO;
3412
3413 memcpy(buf, &data, size);
3414
3415 return size;
3416 }
3417
3418 static ssize_t
3419 qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj,
3420 struct bin_attribute *attr,
3421 char *buf, loff_t offset, size_t size)
3422 {
3423 struct device *dev = container_of(kobj, struct device, kobj);
3424 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3425 u64 data;
3426 int ret;
3427
3428 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
3429 if (ret != 0)
3430 return ret;
3431
3432 memcpy(&data, buf, size);
3433
3434 if (qlcnic_pci_mem_write_2M(adapter, offset, data))
3435 return -EIO;
3436
3437 return size;
3438 }
3439
3440
3441 static struct bin_attribute bin_attr_crb = {
3442 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
3443 .size = 0,
3444 .read = qlcnic_sysfs_read_crb,
3445 .write = qlcnic_sysfs_write_crb,
3446 };
3447
3448 static struct bin_attribute bin_attr_mem = {
3449 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
3450 .size = 0,
3451 .read = qlcnic_sysfs_read_mem,
3452 .write = qlcnic_sysfs_write_mem,
3453 };
3454
3455 static int
3456 validate_pm_config(struct qlcnic_adapter *adapter,
3457 struct qlcnic_pm_func_cfg *pm_cfg, int count)
3458 {
3459
3460 u8 src_pci_func, s_esw_id, d_esw_id;
3461 u8 dest_pci_func;
3462 int i;
3463
3464 for (i = 0; i < count; i++) {
3465 src_pci_func = pm_cfg[i].pci_func;
3466 dest_pci_func = pm_cfg[i].dest_npar;
3467 if (src_pci_func >= QLCNIC_MAX_PCI_FUNC
3468 || dest_pci_func >= QLCNIC_MAX_PCI_FUNC)
3469 return QL_STATUS_INVALID_PARAM;
3470
3471 if (adapter->npars[src_pci_func].type != QLCNIC_TYPE_NIC)
3472 return QL_STATUS_INVALID_PARAM;
3473
3474 if (adapter->npars[dest_pci_func].type != QLCNIC_TYPE_NIC)
3475 return QL_STATUS_INVALID_PARAM;
3476
3477 s_esw_id = adapter->npars[src_pci_func].phy_port;
3478 d_esw_id = adapter->npars[dest_pci_func].phy_port;
3479
3480 if (s_esw_id != d_esw_id)
3481 return QL_STATUS_INVALID_PARAM;
3482
3483 }
3484 return 0;
3485
3486 }
3487
3488 static ssize_t
3489 qlcnic_sysfs_write_pm_config(struct file *filp, struct kobject *kobj,
3490 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3491 {
3492 struct device *dev = container_of(kobj, struct device, kobj);
3493 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3494 struct qlcnic_pm_func_cfg *pm_cfg;
3495 u32 id, action, pci_func;
3496 int count, rem, i, ret;
3497
3498 count = size / sizeof(struct qlcnic_pm_func_cfg);
3499 rem = size % sizeof(struct qlcnic_pm_func_cfg);
3500 if (rem)
3501 return QL_STATUS_INVALID_PARAM;
3502
3503 pm_cfg = (struct qlcnic_pm_func_cfg *) buf;
3504
3505 ret = validate_pm_config(adapter, pm_cfg, count);
3506 if (ret)
3507 return ret;
3508 for (i = 0; i < count; i++) {
3509 pci_func = pm_cfg[i].pci_func;
3510 action = !!pm_cfg[i].action;
3511 id = adapter->npars[pci_func].phy_port;
3512 ret = qlcnic_config_port_mirroring(adapter, id,
3513 action, pci_func);
3514 if (ret)
3515 return ret;
3516 }
3517
3518 for (i = 0; i < count; i++) {
3519 pci_func = pm_cfg[i].pci_func;
3520 id = adapter->npars[pci_func].phy_port;
3521 adapter->npars[pci_func].enable_pm = !!pm_cfg[i].action;
3522 adapter->npars[pci_func].dest_npar = id;
3523 }
3524 return size;
3525 }
3526
3527 static ssize_t
3528 qlcnic_sysfs_read_pm_config(struct file *filp, struct kobject *kobj,
3529 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3530 {
3531 struct device *dev = container_of(kobj, struct device, kobj);
3532 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3533 struct qlcnic_pm_func_cfg pm_cfg[QLCNIC_MAX_PCI_FUNC];
3534 int i;
3535
3536 if (size != sizeof(pm_cfg))
3537 return QL_STATUS_INVALID_PARAM;
3538
3539 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3540 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3541 continue;
3542 pm_cfg[i].action = adapter->npars[i].enable_pm;
3543 pm_cfg[i].dest_npar = 0;
3544 pm_cfg[i].pci_func = i;
3545 }
3546 memcpy(buf, &pm_cfg, size);
3547
3548 return size;
3549 }
3550
3551 static int
3552 validate_esw_config(struct qlcnic_adapter *adapter,
3553 struct qlcnic_esw_func_cfg *esw_cfg, int count)
3554 {
3555 u32 op_mode;
3556 u8 pci_func;
3557 int i;
3558
3559 op_mode = readl(adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE);
3560
3561 for (i = 0; i < count; i++) {
3562 pci_func = esw_cfg[i].pci_func;
3563 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3564 return QL_STATUS_INVALID_PARAM;
3565
3566 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3567 if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3568 return QL_STATUS_INVALID_PARAM;
3569
3570 switch (esw_cfg[i].op_mode) {
3571 case QLCNIC_PORT_DEFAULTS:
3572 if (QLC_DEV_GET_DRV(op_mode, pci_func) !=
3573 QLCNIC_NON_PRIV_FUNC) {
3574 esw_cfg[i].mac_anti_spoof = 0;
3575 esw_cfg[i].mac_override = 1;
3576 }
3577 break;
3578 case QLCNIC_ADD_VLAN:
3579 if (!IS_VALID_VLAN(esw_cfg[i].vlan_id))
3580 return QL_STATUS_INVALID_PARAM;
3581 if (!esw_cfg[i].op_type)
3582 return QL_STATUS_INVALID_PARAM;
3583 break;
3584 case QLCNIC_DEL_VLAN:
3585 if (!esw_cfg[i].op_type)
3586 return QL_STATUS_INVALID_PARAM;
3587 break;
3588 default:
3589 return QL_STATUS_INVALID_PARAM;
3590 }
3591 }
3592 return 0;
3593 }
3594
3595 static ssize_t
3596 qlcnic_sysfs_write_esw_config(struct file *file, struct kobject *kobj,
3597 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3598 {
3599 struct device *dev = container_of(kobj, struct device, kobj);
3600 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3601 struct qlcnic_esw_func_cfg *esw_cfg;
3602 struct qlcnic_npar_info *npar;
3603 int count, rem, i, ret;
3604 u8 pci_func, op_mode = 0;
3605
3606 count = size / sizeof(struct qlcnic_esw_func_cfg);
3607 rem = size % sizeof(struct qlcnic_esw_func_cfg);
3608 if (rem)
3609 return QL_STATUS_INVALID_PARAM;
3610
3611 esw_cfg = (struct qlcnic_esw_func_cfg *) buf;
3612 ret = validate_esw_config(adapter, esw_cfg, count);
3613 if (ret)
3614 return ret;
3615
3616 for (i = 0; i < count; i++) {
3617 if (adapter->op_mode == QLCNIC_MGMT_FUNC)
3618 if (qlcnic_config_switch_port(adapter, &esw_cfg[i]))
3619 return QL_STATUS_INVALID_PARAM;
3620
3621 if (adapter->ahw.pci_func != esw_cfg[i].pci_func)
3622 continue;
3623
3624 op_mode = esw_cfg[i].op_mode;
3625 qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]);
3626 esw_cfg[i].op_mode = op_mode;
3627 esw_cfg[i].pci_func = adapter->ahw.pci_func;
3628
3629 switch (esw_cfg[i].op_mode) {
3630 case QLCNIC_PORT_DEFAULTS:
3631 qlcnic_set_eswitch_port_features(adapter, &esw_cfg[i]);
3632 break;
3633 case QLCNIC_ADD_VLAN:
3634 qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3635 break;
3636 case QLCNIC_DEL_VLAN:
3637 esw_cfg[i].vlan_id = 0;
3638 qlcnic_set_vlan_config(adapter, &esw_cfg[i]);
3639 break;
3640 }
3641 }
3642
3643 if (adapter->op_mode != QLCNIC_MGMT_FUNC)
3644 goto out;
3645
3646 for (i = 0; i < count; i++) {
3647 pci_func = esw_cfg[i].pci_func;
3648 npar = &adapter->npars[pci_func];
3649 switch (esw_cfg[i].op_mode) {
3650 case QLCNIC_PORT_DEFAULTS:
3651 npar->promisc_mode = esw_cfg[i].promisc_mode;
3652 npar->mac_override = esw_cfg[i].mac_override;
3653 npar->offload_flags = esw_cfg[i].offload_flags;
3654 npar->mac_anti_spoof = esw_cfg[i].mac_anti_spoof;
3655 npar->discard_tagged = esw_cfg[i].discard_tagged;
3656 break;
3657 case QLCNIC_ADD_VLAN:
3658 npar->pvid = esw_cfg[i].vlan_id;
3659 break;
3660 case QLCNIC_DEL_VLAN:
3661 npar->pvid = 0;
3662 break;
3663 }
3664 }
3665 out:
3666 return size;
3667 }
3668
3669 static ssize_t
3670 qlcnic_sysfs_read_esw_config(struct file *file, struct kobject *kobj,
3671 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3672 {
3673 struct device *dev = container_of(kobj, struct device, kobj);
3674 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3675 struct qlcnic_esw_func_cfg esw_cfg[QLCNIC_MAX_PCI_FUNC];
3676 u8 i;
3677
3678 if (size != sizeof(esw_cfg))
3679 return QL_STATUS_INVALID_PARAM;
3680
3681 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3682 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3683 continue;
3684 esw_cfg[i].pci_func = i;
3685 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg[i]))
3686 return QL_STATUS_INVALID_PARAM;
3687 }
3688 memcpy(buf, &esw_cfg, size);
3689
3690 return size;
3691 }
3692
3693 static int
3694 validate_npar_config(struct qlcnic_adapter *adapter,
3695 struct qlcnic_npar_func_cfg *np_cfg, int count)
3696 {
3697 u8 pci_func, i;
3698
3699 for (i = 0; i < count; i++) {
3700 pci_func = np_cfg[i].pci_func;
3701 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3702 return QL_STATUS_INVALID_PARAM;
3703
3704 if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3705 return QL_STATUS_INVALID_PARAM;
3706
3707 if (!IS_VALID_BW(np_cfg[i].min_bw)
3708 || !IS_VALID_BW(np_cfg[i].max_bw)
3709 || !IS_VALID_RX_QUEUES(np_cfg[i].max_rx_queues)
3710 || !IS_VALID_TX_QUEUES(np_cfg[i].max_tx_queues))
3711 return QL_STATUS_INVALID_PARAM;
3712 }
3713 return 0;
3714 }
3715
3716 static ssize_t
3717 qlcnic_sysfs_write_npar_config(struct file *file, struct kobject *kobj,
3718 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3719 {
3720 struct device *dev = container_of(kobj, struct device, kobj);
3721 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3722 struct qlcnic_info nic_info;
3723 struct qlcnic_npar_func_cfg *np_cfg;
3724 int i, count, rem, ret;
3725 u8 pci_func;
3726
3727 count = size / sizeof(struct qlcnic_npar_func_cfg);
3728 rem = size % sizeof(struct qlcnic_npar_func_cfg);
3729 if (rem)
3730 return QL_STATUS_INVALID_PARAM;
3731
3732 np_cfg = (struct qlcnic_npar_func_cfg *) buf;
3733 ret = validate_npar_config(adapter, np_cfg, count);
3734 if (ret)
3735 return ret;
3736
3737 for (i = 0; i < count ; i++) {
3738 pci_func = np_cfg[i].pci_func;
3739 ret = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
3740 if (ret)
3741 return ret;
3742 nic_info.pci_func = pci_func;
3743 nic_info.min_tx_bw = np_cfg[i].min_bw;
3744 nic_info.max_tx_bw = np_cfg[i].max_bw;
3745 ret = qlcnic_set_nic_info(adapter, &nic_info);
3746 if (ret)
3747 return ret;
3748 adapter->npars[i].min_bw = nic_info.min_tx_bw;
3749 adapter->npars[i].max_bw = nic_info.max_tx_bw;
3750 }
3751
3752 return size;
3753
3754 }
3755 static ssize_t
3756 qlcnic_sysfs_read_npar_config(struct file *file, struct kobject *kobj,
3757 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3758 {
3759 struct device *dev = container_of(kobj, struct device, kobj);
3760 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3761 struct qlcnic_info nic_info;
3762 struct qlcnic_npar_func_cfg np_cfg[QLCNIC_MAX_PCI_FUNC];
3763 int i, ret;
3764
3765 if (size != sizeof(np_cfg))
3766 return QL_STATUS_INVALID_PARAM;
3767
3768 for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3769 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3770 continue;
3771 ret = qlcnic_get_nic_info(adapter, &nic_info, i);
3772 if (ret)
3773 return ret;
3774
3775 np_cfg[i].pci_func = i;
3776 np_cfg[i].op_mode = (u8)nic_info.op_mode;
3777 np_cfg[i].port_num = nic_info.phys_port;
3778 np_cfg[i].fw_capab = nic_info.capabilities;
3779 np_cfg[i].min_bw = nic_info.min_tx_bw ;
3780 np_cfg[i].max_bw = nic_info.max_tx_bw;
3781 np_cfg[i].max_tx_queues = nic_info.max_tx_ques;
3782 np_cfg[i].max_rx_queues = nic_info.max_rx_ques;
3783 }
3784 memcpy(buf, &np_cfg, size);
3785 return size;
3786 }
3787
3788 static ssize_t
3789 qlcnic_sysfs_get_port_stats(struct file *file, struct kobject *kobj,
3790 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3791 {
3792 struct device *dev = container_of(kobj, struct device, kobj);
3793 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3794 struct qlcnic_esw_statistics port_stats;
3795 int ret;
3796
3797 if (size != sizeof(struct qlcnic_esw_statistics))
3798 return QL_STATUS_INVALID_PARAM;
3799
3800 if (offset >= QLCNIC_MAX_PCI_FUNC)
3801 return QL_STATUS_INVALID_PARAM;
3802
3803 memset(&port_stats, 0, size);
3804 ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3805 &port_stats.rx);
3806 if (ret)
3807 return ret;
3808
3809 ret = qlcnic_get_port_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3810 &port_stats.tx);
3811 if (ret)
3812 return ret;
3813
3814 memcpy(buf, &port_stats, size);
3815 return size;
3816 }
3817
3818 static ssize_t
3819 qlcnic_sysfs_get_esw_stats(struct file *file, struct kobject *kobj,
3820 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3821 {
3822 struct device *dev = container_of(kobj, struct device, kobj);
3823 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3824 struct qlcnic_esw_statistics esw_stats;
3825 int ret;
3826
3827 if (size != sizeof(struct qlcnic_esw_statistics))
3828 return QL_STATUS_INVALID_PARAM;
3829
3830 if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3831 return QL_STATUS_INVALID_PARAM;
3832
3833 memset(&esw_stats, 0, size);
3834 ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_RX_COUNTER,
3835 &esw_stats.rx);
3836 if (ret)
3837 return ret;
3838
3839 ret = qlcnic_get_eswitch_stats(adapter, offset, QLCNIC_QUERY_TX_COUNTER,
3840 &esw_stats.tx);
3841 if (ret)
3842 return ret;
3843
3844 memcpy(buf, &esw_stats, size);
3845 return size;
3846 }
3847
3848 static ssize_t
3849 qlcnic_sysfs_clear_esw_stats(struct file *file, struct kobject *kobj,
3850 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3851 {
3852 struct device *dev = container_of(kobj, struct device, kobj);
3853 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3854 int ret;
3855
3856 if (offset >= QLCNIC_NIU_MAX_XG_PORTS)
3857 return QL_STATUS_INVALID_PARAM;
3858
3859 ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3860 QLCNIC_QUERY_RX_COUNTER);
3861 if (ret)
3862 return ret;
3863
3864 ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_ESWITCH, offset,
3865 QLCNIC_QUERY_TX_COUNTER);
3866 if (ret)
3867 return ret;
3868
3869 return size;
3870 }
3871
3872 static ssize_t
3873 qlcnic_sysfs_clear_port_stats(struct file *file, struct kobject *kobj,
3874 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3875 {
3876
3877 struct device *dev = container_of(kobj, struct device, kobj);
3878 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3879 int ret;
3880
3881 if (offset >= QLCNIC_MAX_PCI_FUNC)
3882 return QL_STATUS_INVALID_PARAM;
3883
3884 ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3885 QLCNIC_QUERY_RX_COUNTER);
3886 if (ret)
3887 return ret;
3888
3889 ret = qlcnic_clear_esw_stats(adapter, QLCNIC_STATS_PORT, offset,
3890 QLCNIC_QUERY_TX_COUNTER);
3891 if (ret)
3892 return ret;
3893
3894 return size;
3895 }
3896
3897 static ssize_t
3898 qlcnic_sysfs_read_pci_config(struct file *file, struct kobject *kobj,
3899 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3900 {
3901 struct device *dev = container_of(kobj, struct device, kobj);
3902 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3903 struct qlcnic_pci_func_cfg pci_cfg[QLCNIC_MAX_PCI_FUNC];
3904 struct qlcnic_pci_info *pci_info;
3905 int i, ret;
3906
3907 if (size != sizeof(pci_cfg))
3908 return QL_STATUS_INVALID_PARAM;
3909
3910 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
3911 if (!pci_info)
3912 return -ENOMEM;
3913
3914 ret = qlcnic_get_pci_info(adapter, pci_info);
3915 if (ret) {
3916 kfree(pci_info);
3917 return ret;
3918 }
3919
3920 for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3921 pci_cfg[i].pci_func = pci_info[i].id;
3922 pci_cfg[i].func_type = pci_info[i].type;
3923 pci_cfg[i].port_num = pci_info[i].default_port;
3924 pci_cfg[i].min_bw = pci_info[i].tx_min_bw;
3925 pci_cfg[i].max_bw = pci_info[i].tx_max_bw;
3926 memcpy(&pci_cfg[i].def_mac_addr, &pci_info[i].mac, ETH_ALEN);
3927 }
3928 memcpy(buf, &pci_cfg, size);
3929 kfree(pci_info);
3930 return size;
3931 }
3932 static struct bin_attribute bin_attr_npar_config = {
3933 .attr = {.name = "npar_config", .mode = (S_IRUGO | S_IWUSR)},
3934 .size = 0,
3935 .read = qlcnic_sysfs_read_npar_config,
3936 .write = qlcnic_sysfs_write_npar_config,
3937 };
3938
3939 static struct bin_attribute bin_attr_pci_config = {
3940 .attr = {.name = "pci_config", .mode = (S_IRUGO | S_IWUSR)},
3941 .size = 0,
3942 .read = qlcnic_sysfs_read_pci_config,
3943 .write = NULL,
3944 };
3945
3946 static struct bin_attribute bin_attr_port_stats = {
3947 .attr = {.name = "port_stats", .mode = (S_IRUGO | S_IWUSR)},
3948 .size = 0,
3949 .read = qlcnic_sysfs_get_port_stats,
3950 .write = qlcnic_sysfs_clear_port_stats,
3951 };
3952
3953 static struct bin_attribute bin_attr_esw_stats = {
3954 .attr = {.name = "esw_stats", .mode = (S_IRUGO | S_IWUSR)},
3955 .size = 0,
3956 .read = qlcnic_sysfs_get_esw_stats,
3957 .write = qlcnic_sysfs_clear_esw_stats,
3958 };
3959
3960 static struct bin_attribute bin_attr_esw_config = {
3961 .attr = {.name = "esw_config", .mode = (S_IRUGO | S_IWUSR)},
3962 .size = 0,
3963 .read = qlcnic_sysfs_read_esw_config,
3964 .write = qlcnic_sysfs_write_esw_config,
3965 };
3966
3967 static struct bin_attribute bin_attr_pm_config = {
3968 .attr = {.name = "pm_config", .mode = (S_IRUGO | S_IWUSR)},
3969 .size = 0,
3970 .read = qlcnic_sysfs_read_pm_config,
3971 .write = qlcnic_sysfs_write_pm_config,
3972 };
3973
3974 static void
3975 qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
3976 {
3977 struct device *dev = &adapter->pdev->dev;
3978
3979 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3980 if (device_create_file(dev, &dev_attr_bridged_mode))
3981 dev_warn(dev,
3982 "failed to create bridged_mode sysfs entry\n");
3983 }
3984
3985 static void
3986 qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
3987 {
3988 struct device *dev = &adapter->pdev->dev;
3989
3990 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3991 device_remove_file(dev, &dev_attr_bridged_mode);
3992 }
3993
3994 static void
3995 qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
3996 {
3997 struct device *dev = &adapter->pdev->dev;
3998
3999 if (device_create_bin_file(dev, &bin_attr_port_stats))
4000 dev_info(dev, "failed to create port stats sysfs entry");
4001
4002 if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
4003 return;
4004 if (device_create_file(dev, &dev_attr_diag_mode))
4005 dev_info(dev, "failed to create diag_mode sysfs entry\n");
4006 if (device_create_bin_file(dev, &bin_attr_crb))
4007 dev_info(dev, "failed to create crb sysfs entry\n");
4008 if (device_create_bin_file(dev, &bin_attr_mem))
4009 dev_info(dev, "failed to create mem sysfs entry\n");
4010 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
4011 return;
4012 if (device_create_bin_file(dev, &bin_attr_esw_config))
4013 dev_info(dev, "failed to create esw config sysfs entry");
4014 if (adapter->op_mode != QLCNIC_MGMT_FUNC)
4015 return;
4016 if (device_create_bin_file(dev, &bin_attr_pci_config))
4017 dev_info(dev, "failed to create pci config sysfs entry");
4018 if (device_create_bin_file(dev, &bin_attr_npar_config))
4019 dev_info(dev, "failed to create npar config sysfs entry");
4020 if (device_create_bin_file(dev, &bin_attr_pm_config))
4021 dev_info(dev, "failed to create pm config sysfs entry");
4022 if (device_create_bin_file(dev, &bin_attr_esw_stats))
4023 dev_info(dev, "failed to create eswitch stats sysfs entry");
4024 }
4025
4026 static void
4027 qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
4028 {
4029 struct device *dev = &adapter->pdev->dev;
4030
4031 device_remove_bin_file(dev, &bin_attr_port_stats);
4032
4033 if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
4034 return;
4035 device_remove_file(dev, &dev_attr_diag_mode);
4036 device_remove_bin_file(dev, &bin_attr_crb);
4037 device_remove_bin_file(dev, &bin_attr_mem);
4038 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
4039 return;
4040 device_remove_bin_file(dev, &bin_attr_esw_config);
4041 if (adapter->op_mode != QLCNIC_MGMT_FUNC)
4042 return;
4043 device_remove_bin_file(dev, &bin_attr_pci_config);
4044 device_remove_bin_file(dev, &bin_attr_npar_config);
4045 device_remove_bin_file(dev, &bin_attr_pm_config);
4046 device_remove_bin_file(dev, &bin_attr_esw_stats);
4047 }
4048
4049 #ifdef CONFIG_INET
4050
4051 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4052
4053 static void
4054 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4055 struct net_device *dev, unsigned long event)
4056 {
4057 struct in_device *indev;
4058
4059 indev = in_dev_get(dev);
4060 if (!indev)
4061 return;
4062
4063 for_ifa(indev) {
4064 switch (event) {
4065 case NETDEV_UP:
4066 qlcnic_config_ipaddr(adapter,
4067 ifa->ifa_address, QLCNIC_IP_UP);
4068 break;
4069 case NETDEV_DOWN:
4070 qlcnic_config_ipaddr(adapter,
4071 ifa->ifa_address, QLCNIC_IP_DOWN);
4072 break;
4073 default:
4074 break;
4075 }
4076 } endfor_ifa(indev);
4077
4078 in_dev_put(indev);
4079 }
4080
4081 static void
4082 qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4083 {
4084 struct qlcnic_adapter *adapter = netdev_priv(netdev);
4085 struct net_device *dev;
4086 u16 vid;
4087
4088 qlcnic_config_indev_addr(adapter, netdev, event);
4089
4090 if (!adapter->vlgrp)
4091 return;
4092
4093 for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) {
4094 dev = vlan_group_get_device(adapter->vlgrp, vid);
4095 if (!dev)
4096 continue;
4097
4098 qlcnic_config_indev_addr(adapter, dev, event);
4099 }
4100 }
4101
4102 static int qlcnic_netdev_event(struct notifier_block *this,
4103 unsigned long event, void *ptr)
4104 {
4105 struct qlcnic_adapter *adapter;
4106 struct net_device *dev = (struct net_device *)ptr;
4107
4108 recheck:
4109 if (dev == NULL)
4110 goto done;
4111
4112 if (dev->priv_flags & IFF_802_1Q_VLAN) {
4113 dev = vlan_dev_real_dev(dev);
4114 goto recheck;
4115 }
4116
4117 if (!is_qlcnic_netdev(dev))
4118 goto done;
4119
4120 adapter = netdev_priv(dev);
4121
4122 if (!adapter)
4123 goto done;
4124
4125 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4126 goto done;
4127
4128 qlcnic_config_indev_addr(adapter, dev, event);
4129 done:
4130 return NOTIFY_DONE;
4131 }
4132
4133 static int
4134 qlcnic_inetaddr_event(struct notifier_block *this,
4135 unsigned long event, void *ptr)
4136 {
4137 struct qlcnic_adapter *adapter;
4138 struct net_device *dev;
4139
4140 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4141
4142 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4143
4144 recheck:
4145 if (dev == NULL)
4146 goto done;
4147
4148 if (dev->priv_flags & IFF_802_1Q_VLAN) {
4149 dev = vlan_dev_real_dev(dev);
4150 goto recheck;
4151 }
4152
4153 if (!is_qlcnic_netdev(dev))
4154 goto done;
4155
4156 adapter = netdev_priv(dev);
4157
4158 if (!adapter)
4159 goto done;
4160
4161 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4162 goto done;
4163
4164 switch (event) {
4165 case NETDEV_UP:
4166 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4167 break;
4168 case NETDEV_DOWN:
4169 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4170 break;
4171 default:
4172 break;
4173 }
4174
4175 done:
4176 return NOTIFY_DONE;
4177 }
4178
4179 static struct notifier_block qlcnic_netdev_cb = {
4180 .notifier_call = qlcnic_netdev_event,
4181 };
4182
4183 static struct notifier_block qlcnic_inetaddr_cb = {
4184 .notifier_call = qlcnic_inetaddr_event,
4185 };
4186 #else
4187 static void
4188 qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4189 { }
4190 #endif
4191 static struct pci_error_handlers qlcnic_err_handler = {
4192 .error_detected = qlcnic_io_error_detected,
4193 .slot_reset = qlcnic_io_slot_reset,
4194 .resume = qlcnic_io_resume,
4195 };
4196
4197 static struct pci_driver qlcnic_driver = {
4198 .name = qlcnic_driver_name,
4199 .id_table = qlcnic_pci_tbl,
4200 .probe = qlcnic_probe,
4201 .remove = __devexit_p(qlcnic_remove),
4202 #ifdef CONFIG_PM
4203 .suspend = qlcnic_suspend,
4204 .resume = qlcnic_resume,
4205 #endif
4206 .shutdown = qlcnic_shutdown,
4207 .err_handler = &qlcnic_err_handler
4208
4209 };
4210
4211 static int __init qlcnic_init_module(void)
4212 {
4213 int ret;
4214
4215 printk(KERN_INFO "%s\n", qlcnic_driver_string);
4216
4217 qlcnic_wq = create_singlethread_workqueue("qlcnic");
4218 if (qlcnic_wq == NULL) {
4219 printk(KERN_ERR "qlcnic: cannot create workqueue\n");
4220 return -ENOMEM;
4221 }
4222
4223 #ifdef CONFIG_INET
4224 register_netdevice_notifier(&qlcnic_netdev_cb);
4225 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4226 #endif
4227
4228 ret = pci_register_driver(&qlcnic_driver);
4229 if (ret) {
4230 #ifdef CONFIG_INET
4231 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4232 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4233 #endif
4234 destroy_workqueue(qlcnic_wq);
4235 }
4236
4237 return ret;
4238 }
4239
4240 module_init(qlcnic_init_module);
4241
4242 static void __exit qlcnic_exit_module(void)
4243 {
4244
4245 pci_unregister_driver(&qlcnic_driver);
4246
4247 #ifdef CONFIG_INET
4248 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4249 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4250 #endif
4251 destroy_workqueue(qlcnic_wq);
4252 }
4253
4254 module_exit(qlcnic_exit_module);
Linux 2.6 libata-dev (mirror)