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qlcnic: fix netdev notifier in error path
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / net / qlcnic / qlcnic_main.c
blob0995f90b0bac0a799ee65a05215870a3cffcf6d2
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/dma-mapping.h>
32 #include <linux/if_vlan.h>
33 #include <net/ip.h>
34 #include <linux/ipv6.h>
35 #include <linux/inetdevice.h>
36 #include <linux/sysfs.h>
37
38 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
39 MODULE_LICENSE("GPL");
40 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
41 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
42
43 char qlcnic_driver_name[] = "qlcnic";
44 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
45 "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
46
47 static int port_mode = QLCNIC_PORT_MODE_AUTO_NEG;
48
49 /* Default to restricted 1G auto-neg mode */
50 static int wol_port_mode = 5;
51
52 static int use_msi = 1;
53 module_param(use_msi, int, 0644);
54 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
55
56 static int use_msi_x = 1;
57 module_param(use_msi_x, int, 0644);
58 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
59
60 static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
61 module_param(auto_fw_reset, int, 0644);
62 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
63
64 static int load_fw_file;
65 module_param(load_fw_file, int, 0644);
66 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file");
67
68 static int qlcnic_config_npars;
69 module_param(qlcnic_config_npars, int, 0644);
70 MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
71
72 static int __devinit qlcnic_probe(struct pci_dev *pdev,
73 const struct pci_device_id *ent);
74 static void __devexit qlcnic_remove(struct pci_dev *pdev);
75 static int qlcnic_open(struct net_device *netdev);
76 static int qlcnic_close(struct net_device *netdev);
77 static void qlcnic_tx_timeout(struct net_device *netdev);
78 static void qlcnic_attach_work(struct work_struct *work);
79 static void qlcnic_fwinit_work(struct work_struct *work);
80 static void qlcnic_fw_poll_work(struct work_struct *work);
81 static void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
82 work_func_t func, int delay);
83 static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter);
84 static int qlcnic_poll(struct napi_struct *napi, int budget);
85 static int qlcnic_rx_poll(struct napi_struct *napi, int budget);
86 #ifdef CONFIG_NET_POLL_CONTROLLER
87 static void qlcnic_poll_controller(struct net_device *netdev);
88 #endif
89
90 static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter);
91 static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter);
92 static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter);
93 static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter);
94
95 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
96 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter);
97 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
98
99 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
100 static irqreturn_t qlcnic_intr(int irq, void *data);
101 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
102 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
103
104 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
105 static void qlcnic_config_indev_addr(struct net_device *dev, unsigned long);
106 static int qlcnic_start_firmware(struct qlcnic_adapter *);
107
108 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
109 static void qlcnicvf_clear_ilb_mode(struct qlcnic_adapter *);
110 static int qlcnicvf_set_ilb_mode(struct qlcnic_adapter *);
111 static int qlcnicvf_config_led(struct qlcnic_adapter *, u32, u32);
112 static int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *, u32);
113 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
114 /* PCI Device ID Table */
115 #define ENTRY(device) \
116 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
117 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
118
119 #define PCI_DEVICE_ID_QLOGIC_QLE824X 0x8020
120
121 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
122 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
123 {0,}
124 };
125
126 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
127
128
129 void
130 qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
131 struct qlcnic_host_tx_ring *tx_ring)
132 {
133 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
134 }
135
136 static const u32 msi_tgt_status[8] = {
137 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
138 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
139 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
140 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
141 };
142
143 static const
144 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
145
146 static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring)
147 {
148 writel(0, sds_ring->crb_intr_mask);
149 }
150
151 static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
152 {
153 struct qlcnic_adapter *adapter = sds_ring->adapter;
154
155 writel(0x1, sds_ring->crb_intr_mask);
156
157 if (!QLCNIC_IS_MSI_FAMILY(adapter))
158 writel(0xfbff, adapter->tgt_mask_reg);
159 }
160
161 static int
162 qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
163 {
164 int size = sizeof(struct qlcnic_host_sds_ring) * count;
165
166 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
167
168 return (recv_ctx->sds_rings == NULL);
169 }
170
171 static void
172 qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
173 {
174 if (recv_ctx->sds_rings != NULL)
175 kfree(recv_ctx->sds_rings);
176
177 recv_ctx->sds_rings = NULL;
178 }
179
180 static int
181 qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev)
182 {
183 int ring;
184 struct qlcnic_host_sds_ring *sds_ring;
185 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
186
187 if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
188 return -ENOMEM;
189
190 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
191 sds_ring = &recv_ctx->sds_rings[ring];
192
193 if (ring == adapter->max_sds_rings - 1)
194 netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll,
195 QLCNIC_NETDEV_WEIGHT/adapter->max_sds_rings);
196 else
197 netif_napi_add(netdev, &sds_ring->napi,
198 qlcnic_rx_poll, QLCNIC_NETDEV_WEIGHT*2);
199 }
200
201 return 0;
202 }
203
204 static void
205 qlcnic_napi_del(struct qlcnic_adapter *adapter)
206 {
207 int ring;
208 struct qlcnic_host_sds_ring *sds_ring;
209 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
210
211 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
212 sds_ring = &recv_ctx->sds_rings[ring];
213 netif_napi_del(&sds_ring->napi);
214 }
215
216 qlcnic_free_sds_rings(&adapter->recv_ctx);
217 }
218
219 static void
220 qlcnic_napi_enable(struct qlcnic_adapter *adapter)
221 {
222 int ring;
223 struct qlcnic_host_sds_ring *sds_ring;
224 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
225
226 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
227 return;
228
229 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
230 sds_ring = &recv_ctx->sds_rings[ring];
231 napi_enable(&sds_ring->napi);
232 qlcnic_enable_int(sds_ring);
233 }
234 }
235
236 static void
237 qlcnic_napi_disable(struct qlcnic_adapter *adapter)
238 {
239 int ring;
240 struct qlcnic_host_sds_ring *sds_ring;
241 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
242
243 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
244 return;
245
246 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
247 sds_ring = &recv_ctx->sds_rings[ring];
248 qlcnic_disable_int(sds_ring);
249 napi_synchronize(&sds_ring->napi);
250 napi_disable(&sds_ring->napi);
251 }
252 }
253
254 static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
255 {
256 memset(&adapter->stats, 0, sizeof(adapter->stats));
257 }
258
259 static void qlcnic_set_port_mode(struct qlcnic_adapter *adapter)
260 {
261 u32 val, data;
262
263 val = adapter->ahw.board_type;
264 if ((val == QLCNIC_BRDTYPE_P3_HMEZ) ||
265 (val == QLCNIC_BRDTYPE_P3_XG_LOM)) {
266 if (port_mode == QLCNIC_PORT_MODE_802_3_AP) {
267 data = QLCNIC_PORT_MODE_802_3_AP;
268 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
269 } else if (port_mode == QLCNIC_PORT_MODE_XG) {
270 data = QLCNIC_PORT_MODE_XG;
271 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
272 } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_1G) {
273 data = QLCNIC_PORT_MODE_AUTO_NEG_1G;
274 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
275 } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_XG) {
276 data = QLCNIC_PORT_MODE_AUTO_NEG_XG;
277 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
278 } else {
279 data = QLCNIC_PORT_MODE_AUTO_NEG;
280 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
281 }
282
283 if ((wol_port_mode != QLCNIC_PORT_MODE_802_3_AP) &&
284 (wol_port_mode != QLCNIC_PORT_MODE_XG) &&
285 (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_1G) &&
286 (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_XG)) {
287 wol_port_mode = QLCNIC_PORT_MODE_AUTO_NEG;
288 }
289 QLCWR32(adapter, QLCNIC_WOL_PORT_MODE, wol_port_mode);
290 }
291 }
292
293 static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
294 {
295 u32 control;
296 int pos;
297
298 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
299 if (pos) {
300 pci_read_config_dword(pdev, pos, &control);
301 if (enable)
302 control |= PCI_MSIX_FLAGS_ENABLE;
303 else
304 control = 0;
305 pci_write_config_dword(pdev, pos, control);
306 }
307 }
308
309 static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
310 {
311 int i;
312
313 for (i = 0; i < count; i++)
314 adapter->msix_entries[i].entry = i;
315 }
316
317 static int
318 qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
319 {
320 u8 mac_addr[ETH_ALEN];
321 struct net_device *netdev = adapter->netdev;
322 struct pci_dev *pdev = adapter->pdev;
323
324 if (adapter->nic_ops->get_mac_addr(adapter, mac_addr) != 0)
325 return -EIO;
326
327 memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
328 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
329 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
330
331 /* set station address */
332
333 if (!is_valid_ether_addr(netdev->perm_addr))
334 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
335 netdev->dev_addr);
336
337 return 0;
338 }
339
340 static int qlcnic_set_mac(struct net_device *netdev, void *p)
341 {
342 struct qlcnic_adapter *adapter = netdev_priv(netdev);
343 struct sockaddr *addr = p;
344
345 if (!is_valid_ether_addr(addr->sa_data))
346 return -EINVAL;
347
348 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
349 netif_device_detach(netdev);
350 qlcnic_napi_disable(adapter);
351 }
352
353 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
354 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
355 qlcnic_set_multi(adapter->netdev);
356
357 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
358 netif_device_attach(netdev);
359 qlcnic_napi_enable(adapter);
360 }
361 return 0;
362 }
363
364 static const struct net_device_ops qlcnic_netdev_ops = {
365 .ndo_open = qlcnic_open,
366 .ndo_stop = qlcnic_close,
367 .ndo_start_xmit = qlcnic_xmit_frame,
368 .ndo_get_stats = qlcnic_get_stats,
369 .ndo_validate_addr = eth_validate_addr,
370 .ndo_set_multicast_list = qlcnic_set_multi,
371 .ndo_set_mac_address = qlcnic_set_mac,
372 .ndo_change_mtu = qlcnic_change_mtu,
373 .ndo_tx_timeout = qlcnic_tx_timeout,
374 #ifdef CONFIG_NET_POLL_CONTROLLER
375 .ndo_poll_controller = qlcnic_poll_controller,
376 #endif
377 };
378
379 static struct qlcnic_nic_template qlcnic_ops = {
380 .get_mac_addr = qlcnic_get_mac_address,
381 .config_bridged_mode = qlcnic_config_bridged_mode,
382 .config_led = qlcnic_config_led,
383 .set_ilb_mode = qlcnic_set_ilb_mode,
384 .clear_ilb_mode = qlcnic_clear_ilb_mode,
385 .start_firmware = qlcnic_start_firmware
386 };
387
388 static struct qlcnic_nic_template qlcnic_vf_ops = {
389 .get_mac_addr = qlcnic_get_mac_address,
390 .config_bridged_mode = qlcnicvf_config_bridged_mode,
391 .config_led = qlcnicvf_config_led,
392 .set_ilb_mode = qlcnicvf_set_ilb_mode,
393 .clear_ilb_mode = qlcnicvf_clear_ilb_mode,
394 .start_firmware = qlcnicvf_start_firmware
395 };
396
397 static void
398 qlcnic_setup_intr(struct qlcnic_adapter *adapter)
399 {
400 const struct qlcnic_legacy_intr_set *legacy_intrp;
401 struct pci_dev *pdev = adapter->pdev;
402 int err, num_msix;
403
404 if (adapter->rss_supported) {
405 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
406 MSIX_ENTRIES_PER_ADAPTER : 2;
407 } else
408 num_msix = 1;
409
410 adapter->max_sds_rings = 1;
411
412 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
413
414 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
415
416 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
417 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
418 legacy_intrp->tgt_status_reg);
419 adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
420 legacy_intrp->tgt_mask_reg);
421 adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
422
423 adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
424 ISR_INT_STATE_REG);
425
426 qlcnic_set_msix_bit(pdev, 0);
427
428 if (adapter->msix_supported) {
429
430 qlcnic_init_msix_entries(adapter, num_msix);
431 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
432 if (err == 0) {
433 adapter->flags |= QLCNIC_MSIX_ENABLED;
434 qlcnic_set_msix_bit(pdev, 1);
435
436 if (adapter->rss_supported)
437 adapter->max_sds_rings = num_msix;
438
439 dev_info(&pdev->dev, "using msi-x interrupts\n");
440 return;
441 }
442
443 if (err > 0)
444 pci_disable_msix(pdev);
445
446 /* fall through for msi */
447 }
448
449 if (use_msi && !pci_enable_msi(pdev)) {
450 adapter->flags |= QLCNIC_MSI_ENABLED;
451 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
452 msi_tgt_status[adapter->ahw.pci_func]);
453 dev_info(&pdev->dev, "using msi interrupts\n");
454 adapter->msix_entries[0].vector = pdev->irq;
455 return;
456 }
457
458 dev_info(&pdev->dev, "using legacy interrupts\n");
459 adapter->msix_entries[0].vector = pdev->irq;
460 }
461
462 static void
463 qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
464 {
465 if (adapter->flags & QLCNIC_MSIX_ENABLED)
466 pci_disable_msix(adapter->pdev);
467 if (adapter->flags & QLCNIC_MSI_ENABLED)
468 pci_disable_msi(adapter->pdev);
469 }
470
471 static void
472 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
473 {
474 if (adapter->ahw.pci_base0 != NULL)
475 iounmap(adapter->ahw.pci_base0);
476 }
477
478 static int
479 qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
480 {
481 struct qlcnic_pci_info pci_info[QLCNIC_MAX_PCI_FUNC];
482 int i, ret = 0, err;
483 u8 pfn;
484
485 if (!adapter->npars)
486 adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
487 QLCNIC_MAX_PCI_FUNC, GFP_KERNEL);
488 if (!adapter->npars)
489 return -ENOMEM;
490
491 if (!adapter->eswitch)
492 adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
493 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
494 if (!adapter->eswitch) {
495 err = -ENOMEM;
496 goto err_eswitch;
497 }
498
499 ret = qlcnic_get_pci_info(adapter, pci_info);
500 if (!ret) {
501 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
502 pfn = pci_info[i].id;
503 if (pfn > QLCNIC_MAX_PCI_FUNC)
504 return QL_STATUS_INVALID_PARAM;
505 adapter->npars[pfn].active = pci_info[i].active;
506 adapter->npars[pfn].type = pci_info[i].type;
507 adapter->npars[pfn].phy_port = pci_info[i].default_port;
508 adapter->npars[pfn].mac_learning = DEFAULT_MAC_LEARN;
509 }
510
511 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
512 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
513
514 return ret;
515 }
516
517 kfree(adapter->eswitch);
518 adapter->eswitch = NULL;
519 err_eswitch:
520 kfree(adapter->npars);
521
522 return ret;
523 }
524
525 static int
526 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
527 {
528 u8 id;
529 u32 ref_count;
530 int i, ret = 1;
531 u32 data = QLCNIC_MGMT_FUNC;
532 void __iomem *priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
533
534 /* If other drivers are not in use set their privilege level */
535 ref_count = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
536 ret = qlcnic_api_lock(adapter);
537 if (ret)
538 goto err_lock;
539 if (QLC_DEV_CLR_REF_CNT(ref_count, adapter->ahw.pci_func))
540 goto err_npar;
541
542 if (qlcnic_config_npars) {
543 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
544 id = i;
545 if (adapter->npars[i].type != QLCNIC_TYPE_NIC ||
546 id == adapter->ahw.pci_func)
547 continue;
548 data |= (qlcnic_config_npars &
549 QLC_DEV_SET_DRV(0xf, id));
550 }
551 } else {
552 data = readl(priv_op);
553 data = (data & ~QLC_DEV_SET_DRV(0xf, adapter->ahw.pci_func)) |
554 (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
555 adapter->ahw.pci_func));
556 }
557 writel(data, priv_op);
558 err_npar:
559 qlcnic_api_unlock(adapter);
560 err_lock:
561 return ret;
562 }
563
564 static u32
565 qlcnic_get_driver_mode(struct qlcnic_adapter *adapter)
566 {
567 void __iomem *msix_base_addr;
568 void __iomem *priv_op;
569 struct qlcnic_info nic_info;
570 u32 func;
571 u32 msix_base;
572 u32 op_mode, priv_level;
573
574 /* Determine FW API version */
575 adapter->fw_hal_version = readl(adapter->ahw.pci_base0 + QLCNIC_FW_API);
576
577 /* Find PCI function number */
578 pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
579 msix_base_addr = adapter->ahw.pci_base0 + QLCNIC_MSIX_BASE;
580 msix_base = readl(msix_base_addr);
581 func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE;
582 adapter->ahw.pci_func = func;
583
584 if (!qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw.pci_func)) {
585 adapter->capabilities = nic_info.capabilities;
586
587 if (adapter->capabilities & BIT_6)
588 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
589 else
590 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
591 }
592
593 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
594 adapter->nic_ops = &qlcnic_ops;
595 return adapter->fw_hal_version;
596 }
597
598 /* Determine function privilege level */
599 priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
600 op_mode = readl(priv_op);
601 if (op_mode == QLC_DEV_DRV_DEFAULT)
602 priv_level = QLCNIC_MGMT_FUNC;
603 else
604 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
605
606 switch (priv_level) {
607 case QLCNIC_MGMT_FUNC:
608 adapter->op_mode = QLCNIC_MGMT_FUNC;
609 adapter->nic_ops = &qlcnic_ops;
610 qlcnic_init_pci_info(adapter);
611 /* Set privilege level for other functions */
612 qlcnic_set_function_modes(adapter);
613 dev_info(&adapter->pdev->dev,
614 "HAL Version: %d, Management function\n",
615 adapter->fw_hal_version);
616 break;
617 case QLCNIC_PRIV_FUNC:
618 adapter->op_mode = QLCNIC_PRIV_FUNC;
619 dev_info(&adapter->pdev->dev,
620 "HAL Version: %d, Privileged function\n",
621 adapter->fw_hal_version);
622 adapter->nic_ops = &qlcnic_ops;
623 break;
624 case QLCNIC_NON_PRIV_FUNC:
625 adapter->op_mode = QLCNIC_NON_PRIV_FUNC;
626 dev_info(&adapter->pdev->dev,
627 "HAL Version: %d Non Privileged function\n",
628 adapter->fw_hal_version);
629 adapter->nic_ops = &qlcnic_vf_ops;
630 break;
631 default:
632 dev_info(&adapter->pdev->dev, "Unknown function mode: %d\n",
633 priv_level);
634 return 0;
635 }
636 return adapter->fw_hal_version;
637 }
638
639 static int
640 qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
641 {
642 void __iomem *mem_ptr0 = NULL;
643 resource_size_t mem_base;
644 unsigned long mem_len, pci_len0 = 0;
645
646 struct pci_dev *pdev = adapter->pdev;
647
648 /* remap phys address */
649 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
650 mem_len = pci_resource_len(pdev, 0);
651
652 if (mem_len == QLCNIC_PCI_2MB_SIZE) {
653
654 mem_ptr0 = pci_ioremap_bar(pdev, 0);
655 if (mem_ptr0 == NULL) {
656 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
657 return -EIO;
658 }
659 pci_len0 = mem_len;
660 } else {
661 return -EIO;
662 }
663
664 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
665
666 adapter->ahw.pci_base0 = mem_ptr0;
667 adapter->ahw.pci_len0 = pci_len0;
668
669 if (!qlcnic_get_driver_mode(adapter)) {
670 iounmap(adapter->ahw.pci_base0);
671 return -EIO;
672 }
673
674 adapter->ahw.ocm_win_crb = qlcnic_get_ioaddr(adapter,
675 QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(adapter->ahw.pci_func)));
676
677 return 0;
678 }
679
680 static void get_brd_name(struct qlcnic_adapter *adapter, char *name)
681 {
682 struct pci_dev *pdev = adapter->pdev;
683 int i, found = 0;
684
685 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
686 if (qlcnic_boards[i].vendor == pdev->vendor &&
687 qlcnic_boards[i].device == pdev->device &&
688 qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
689 qlcnic_boards[i].sub_device == pdev->subsystem_device) {
690 sprintf(name, "%pM: %s" ,
691 adapter->mac_addr,
692 qlcnic_boards[i].short_name);
693 found = 1;
694 break;
695 }
696
697 }
698
699 if (!found)
700 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
701 }
702
703 static void
704 qlcnic_check_options(struct qlcnic_adapter *adapter)
705 {
706 u32 fw_major, fw_minor, fw_build;
707 char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
708 char serial_num[32];
709 int i, offset, val;
710 int *ptr32;
711 struct pci_dev *pdev = adapter->pdev;
712 struct qlcnic_info nic_info;
713 adapter->driver_mismatch = 0;
714
715 ptr32 = (int *)&serial_num;
716 offset = QLCNIC_FW_SERIAL_NUM_OFFSET;
717 for (i = 0; i < 8; i++) {
718 if (qlcnic_rom_fast_read(adapter, offset, &val) == -1) {
719 dev_err(&pdev->dev, "error reading board info\n");
720 adapter->driver_mismatch = 1;
721 return;
722 }
723 ptr32[i] = cpu_to_le32(val);
724 offset += sizeof(u32);
725 }
726
727 fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
728 fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
729 fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
730
731 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
732
733 if (adapter->portnum == 0) {
734 get_brd_name(adapter, brd_name);
735
736 pr_info("%s: %s Board Chip rev 0x%x\n",
737 module_name(THIS_MODULE),
738 brd_name, adapter->ahw.revision_id);
739 }
740
741 dev_info(&pdev->dev, "firmware v%d.%d.%d\n",
742 fw_major, fw_minor, fw_build);
743
744 adapter->flags &= ~QLCNIC_LRO_ENABLED;
745
746 if (adapter->ahw.port_type == QLCNIC_XGBE) {
747 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
748 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
749 } else if (adapter->ahw.port_type == QLCNIC_GBE) {
750 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
751 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
752 }
753
754 if (!qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw.pci_func)) {
755 adapter->physical_port = nic_info.phys_port;
756 adapter->switch_mode = nic_info.switch_mode;
757 adapter->max_tx_ques = nic_info.max_tx_ques;
758 adapter->max_rx_ques = nic_info.max_rx_ques;
759 adapter->capabilities = nic_info.capabilities;
760 adapter->max_mac_filters = nic_info.max_mac_filters;
761 adapter->max_mtu = nic_info.max_mtu;
762 }
763
764 adapter->msix_supported = !!use_msi_x;
765 adapter->rss_supported = !!use_msi_x;
766
767 adapter->num_txd = MAX_CMD_DESCRIPTORS;
768
769 adapter->max_rds_rings = 2;
770 }
771
772 static int
773 qlcnic_start_firmware(struct qlcnic_adapter *adapter)
774 {
775 int val, err, first_boot;
776
777 err = qlcnic_can_start_firmware(adapter);
778 if (err < 0)
779 return err;
780 else if (!err)
781 goto wait_init;
782
783 first_boot = QLCRD32(adapter, QLCNIC_CAM_RAM(0x1fc));
784 if (first_boot == 0x55555555)
785 /* This is the first boot after power up */
786 QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
787
788 if (load_fw_file)
789 qlcnic_request_firmware(adapter);
790 else {
791 if (qlcnic_check_flash_fw_ver(adapter))
792 goto err_out;
793
794 adapter->fw_type = QLCNIC_FLASH_ROMIMAGE;
795 }
796
797 err = qlcnic_need_fw_reset(adapter);
798 if (err < 0)
799 goto err_out;
800 if (err == 0)
801 goto wait_init;
802
803 if (first_boot != 0x55555555) {
804 QLCWR32(adapter, CRB_CMDPEG_STATE, 0);
805 QLCWR32(adapter, CRB_RCVPEG_STATE, 0);
806 qlcnic_pinit_from_rom(adapter);
807 msleep(1);
808 }
809
810 QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0);
811 QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0);
812
813 qlcnic_set_port_mode(adapter);
814
815 err = qlcnic_load_firmware(adapter);
816 if (err)
817 goto err_out;
818
819 qlcnic_release_firmware(adapter);
820
821 val = (_QLCNIC_LINUX_MAJOR << 16)
822 | ((_QLCNIC_LINUX_MINOR << 8))
823 | (_QLCNIC_LINUX_SUBVERSION);
824 QLCWR32(adapter, CRB_DRIVER_VERSION, val);
825
826 wait_init:
827 /* Handshake with the card before we register the devices. */
828 err = qlcnic_init_firmware(adapter);
829 if (err)
830 goto err_out;
831
832 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
833 qlcnic_idc_debug_info(adapter, 1);
834
835 qlcnic_check_options(adapter);
836
837 if (adapter->flags & QLCNIC_ESWITCH_ENABLED &&
838 adapter->op_mode != QLCNIC_NON_PRIV_FUNC)
839 qlcnic_dev_set_npar_ready(adapter);
840
841 adapter->need_fw_reset = 0;
842
843 qlcnic_release_firmware(adapter);
844 return 0;
845
846 err_out:
847 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
848 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
849 qlcnic_release_firmware(adapter);
850 return err;
851 }
852
853 static int
854 qlcnic_request_irq(struct qlcnic_adapter *adapter)
855 {
856 irq_handler_t handler;
857 struct qlcnic_host_sds_ring *sds_ring;
858 int err, ring;
859
860 unsigned long flags = 0;
861 struct net_device *netdev = adapter->netdev;
862 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
863
864 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
865 handler = qlcnic_tmp_intr;
866 if (!QLCNIC_IS_MSI_FAMILY(adapter))
867 flags |= IRQF_SHARED;
868
869 } else {
870 if (adapter->flags & QLCNIC_MSIX_ENABLED)
871 handler = qlcnic_msix_intr;
872 else if (adapter->flags & QLCNIC_MSI_ENABLED)
873 handler = qlcnic_msi_intr;
874 else {
875 flags |= IRQF_SHARED;
876 handler = qlcnic_intr;
877 }
878 }
879 adapter->irq = netdev->irq;
880
881 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
882 sds_ring = &recv_ctx->sds_rings[ring];
883 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
884 err = request_irq(sds_ring->irq, handler,
885 flags, sds_ring->name, sds_ring);
886 if (err)
887 return err;
888 }
889
890 return 0;
891 }
892
893 static void
894 qlcnic_free_irq(struct qlcnic_adapter *adapter)
895 {
896 int ring;
897 struct qlcnic_host_sds_ring *sds_ring;
898
899 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
900
901 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
902 sds_ring = &recv_ctx->sds_rings[ring];
903 free_irq(sds_ring->irq, sds_ring);
904 }
905 }
906
907 static void
908 qlcnic_init_coalesce_defaults(struct qlcnic_adapter *adapter)
909 {
910 adapter->coal.flags = QLCNIC_INTR_DEFAULT;
911 adapter->coal.normal.data.rx_time_us =
912 QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
913 adapter->coal.normal.data.rx_packets =
914 QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
915 adapter->coal.normal.data.tx_time_us =
916 QLCNIC_DEFAULT_INTR_COALESCE_TX_TIME_US;
917 adapter->coal.normal.data.tx_packets =
918 QLCNIC_DEFAULT_INTR_COALESCE_TX_PACKETS;
919 }
920
921 static int
922 __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
923 {
924 int ring;
925 struct qlcnic_host_rds_ring *rds_ring;
926
927 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
928 return -EIO;
929
930 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
931 return 0;
932
933 if (qlcnic_fw_create_ctx(adapter))
934 return -EIO;
935
936 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
937 rds_ring = &adapter->recv_ctx.rds_rings[ring];
938 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
939 }
940
941 qlcnic_set_multi(netdev);
942 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
943
944 adapter->ahw.linkup = 0;
945
946 if (adapter->max_sds_rings > 1)
947 qlcnic_config_rss(adapter, 1);
948
949 qlcnic_config_intr_coalesce(adapter);
950
951 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
952 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
953
954 qlcnic_napi_enable(adapter);
955
956 qlcnic_linkevent_request(adapter, 1);
957
958 adapter->reset_context = 0;
959 set_bit(__QLCNIC_DEV_UP, &adapter->state);
960 return 0;
961 }
962
963 /* Usage: During resume and firmware recovery module.*/
964
965 static int
966 qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
967 {
968 int err = 0;
969
970 rtnl_lock();
971 if (netif_running(netdev))
972 err = __qlcnic_up(adapter, netdev);
973 rtnl_unlock();
974
975 return err;
976 }
977
978 static void
979 __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
980 {
981 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
982 return;
983
984 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
985 return;
986
987 smp_mb();
988 spin_lock(&adapter->tx_clean_lock);
989 netif_carrier_off(netdev);
990 netif_tx_disable(netdev);
991
992 qlcnic_free_mac_list(adapter);
993
994 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
995
996 qlcnic_napi_disable(adapter);
997
998 qlcnic_fw_destroy_ctx(adapter);
999
1000 qlcnic_reset_rx_buffers_list(adapter);
1001 qlcnic_release_tx_buffers(adapter);
1002 spin_unlock(&adapter->tx_clean_lock);
1003 }
1004
1005 /* Usage: During suspend and firmware recovery module */
1006
1007 static void
1008 qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1009 {
1010 rtnl_lock();
1011 if (netif_running(netdev))
1012 __qlcnic_down(adapter, netdev);
1013 rtnl_unlock();
1014
1015 }
1016
1017 static int
1018 qlcnic_attach(struct qlcnic_adapter *adapter)
1019 {
1020 struct net_device *netdev = adapter->netdev;
1021 struct pci_dev *pdev = adapter->pdev;
1022 int err;
1023
1024 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1025 return 0;
1026
1027 err = qlcnic_napi_add(adapter, netdev);
1028 if (err)
1029 return err;
1030
1031 err = qlcnic_alloc_sw_resources(adapter);
1032 if (err) {
1033 dev_err(&pdev->dev, "Error in setting sw resources\n");
1034 goto err_out_napi_del;
1035 }
1036
1037 err = qlcnic_alloc_hw_resources(adapter);
1038 if (err) {
1039 dev_err(&pdev->dev, "Error in setting hw resources\n");
1040 goto err_out_free_sw;
1041 }
1042
1043 err = qlcnic_request_irq(adapter);
1044 if (err) {
1045 dev_err(&pdev->dev, "failed to setup interrupt\n");
1046 goto err_out_free_hw;
1047 }
1048
1049 qlcnic_init_coalesce_defaults(adapter);
1050
1051 qlcnic_create_sysfs_entries(adapter);
1052
1053 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1054 return 0;
1055
1056 err_out_free_hw:
1057 qlcnic_free_hw_resources(adapter);
1058 err_out_free_sw:
1059 qlcnic_free_sw_resources(adapter);
1060 err_out_napi_del:
1061 qlcnic_napi_del(adapter);
1062 return err;
1063 }
1064
1065 static void
1066 qlcnic_detach(struct qlcnic_adapter *adapter)
1067 {
1068 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1069 return;
1070
1071 qlcnic_remove_sysfs_entries(adapter);
1072
1073 qlcnic_free_hw_resources(adapter);
1074 qlcnic_release_rx_buffers(adapter);
1075 qlcnic_free_irq(adapter);
1076 qlcnic_napi_del(adapter);
1077 qlcnic_free_sw_resources(adapter);
1078
1079 adapter->is_up = 0;
1080 }
1081
1082 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1083 {
1084 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1085 struct qlcnic_host_sds_ring *sds_ring;
1086 int ring;
1087
1088 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1089 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1090 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1091 sds_ring = &adapter->recv_ctx.sds_rings[ring];
1092 qlcnic_disable_int(sds_ring);
1093 }
1094 }
1095
1096 qlcnic_fw_destroy_ctx(adapter);
1097
1098 qlcnic_detach(adapter);
1099
1100 adapter->diag_test = 0;
1101 adapter->max_sds_rings = max_sds_rings;
1102
1103 if (qlcnic_attach(adapter))
1104 goto out;
1105
1106 if (netif_running(netdev))
1107 __qlcnic_up(adapter, netdev);
1108 out:
1109 netif_device_attach(netdev);
1110 }
1111
1112 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1113 {
1114 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1115 struct qlcnic_host_sds_ring *sds_ring;
1116 struct qlcnic_host_rds_ring *rds_ring;
1117 int ring;
1118 int ret;
1119
1120 netif_device_detach(netdev);
1121
1122 if (netif_running(netdev))
1123 __qlcnic_down(adapter, netdev);
1124
1125 qlcnic_detach(adapter);
1126
1127 adapter->max_sds_rings = 1;
1128 adapter->diag_test = test;
1129
1130 ret = qlcnic_attach(adapter);
1131 if (ret) {
1132 netif_device_attach(netdev);
1133 return ret;
1134 }
1135
1136 ret = qlcnic_fw_create_ctx(adapter);
1137 if (ret) {
1138 qlcnic_detach(adapter);
1139 return ret;
1140 }
1141
1142 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1143 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1144 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
1145 }
1146
1147 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1148 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1149 sds_ring = &adapter->recv_ctx.sds_rings[ring];
1150 qlcnic_enable_int(sds_ring);
1151 }
1152 }
1153 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1154
1155 return 0;
1156 }
1157
1158 /* Reset context in hardware only */
1159 static int
1160 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1161 {
1162 struct net_device *netdev = adapter->netdev;
1163
1164 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1165 return -EBUSY;
1166
1167 netif_device_detach(netdev);
1168
1169 qlcnic_down(adapter, netdev);
1170
1171 qlcnic_up(adapter, netdev);
1172
1173 netif_device_attach(netdev);
1174
1175 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1176 return 0;
1177 }
1178
1179 int
1180 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1181 {
1182 int err = 0;
1183 struct net_device *netdev = adapter->netdev;
1184
1185 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1186 return -EBUSY;
1187
1188 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1189
1190 netif_device_detach(netdev);
1191
1192 if (netif_running(netdev))
1193 __qlcnic_down(adapter, netdev);
1194
1195 qlcnic_detach(adapter);
1196
1197 if (netif_running(netdev)) {
1198 err = qlcnic_attach(adapter);
1199 if (!err)
1200 __qlcnic_up(adapter, netdev);
1201 }
1202
1203 netif_device_attach(netdev);
1204 }
1205
1206 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1207 return err;
1208 }
1209
1210 static int
1211 qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
1212 struct net_device *netdev, u8 pci_using_dac)
1213 {
1214 int err;
1215 struct pci_dev *pdev = adapter->pdev;
1216
1217 adapter->rx_csum = 1;
1218 adapter->mc_enabled = 0;
1219 adapter->max_mc_count = 38;
1220
1221 netdev->netdev_ops = &qlcnic_netdev_ops;
1222 netdev->watchdog_timeo = 5*HZ;
1223
1224 qlcnic_change_mtu(netdev, netdev->mtu);
1225
1226 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1227
1228 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1229 NETIF_F_IPV6_CSUM | NETIF_F_GRO);
1230 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1231 NETIF_F_IPV6_CSUM);
1232
1233 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_TSO) {
1234 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1235 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1236 }
1237
1238 if (pci_using_dac) {
1239 netdev->features |= NETIF_F_HIGHDMA;
1240 netdev->vlan_features |= NETIF_F_HIGHDMA;
1241 }
1242
1243 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
1244 netdev->features |= (NETIF_F_HW_VLAN_TX);
1245
1246 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1247 netdev->features |= NETIF_F_LRO;
1248
1249 netdev->irq = adapter->msix_entries[0].vector;
1250
1251 if (qlcnic_read_mac_addr(adapter))
1252 dev_warn(&pdev->dev, "failed to read mac addr\n");
1253
1254 netif_carrier_off(netdev);
1255 netif_stop_queue(netdev);
1256
1257 err = register_netdev(netdev);
1258 if (err) {
1259 dev_err(&pdev->dev, "failed to register net device\n");
1260 return err;
1261 }
1262
1263 return 0;
1264 }
1265
1266 static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *pci_using_dac)
1267 {
1268 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1269 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1270 *pci_using_dac = 1;
1271 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1272 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1273 *pci_using_dac = 0;
1274 else {
1275 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1276 return -EIO;
1277 }
1278
1279 return 0;
1280 }
1281
1282 static int __devinit
1283 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1284 {
1285 struct net_device *netdev = NULL;
1286 struct qlcnic_adapter *adapter = NULL;
1287 int err;
1288 uint8_t revision_id;
1289 uint8_t pci_using_dac;
1290
1291 err = pci_enable_device(pdev);
1292 if (err)
1293 return err;
1294
1295 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1296 err = -ENODEV;
1297 goto err_out_disable_pdev;
1298 }
1299
1300 err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1301 if (err)
1302 goto err_out_disable_pdev;
1303
1304 err = pci_request_regions(pdev, qlcnic_driver_name);
1305 if (err)
1306 goto err_out_disable_pdev;
1307
1308 pci_set_master(pdev);
1309
1310 netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1311 if (!netdev) {
1312 dev_err(&pdev->dev, "failed to allocate net_device\n");
1313 err = -ENOMEM;
1314 goto err_out_free_res;
1315 }
1316
1317 SET_NETDEV_DEV(netdev, &pdev->dev);
1318
1319 adapter = netdev_priv(netdev);
1320 adapter->netdev = netdev;
1321 adapter->pdev = pdev;
1322 adapter->dev_rst_time = jiffies;
1323
1324 revision_id = pdev->revision;
1325 adapter->ahw.revision_id = revision_id;
1326
1327 rwlock_init(&adapter->ahw.crb_lock);
1328 mutex_init(&adapter->ahw.mem_lock);
1329
1330 spin_lock_init(&adapter->tx_clean_lock);
1331 INIT_LIST_HEAD(&adapter->mac_list);
1332
1333 err = qlcnic_setup_pci_map(adapter);
1334 if (err)
1335 goto err_out_free_netdev;
1336
1337 /* This will be reset for mezz cards */
1338 adapter->portnum = adapter->ahw.pci_func;
1339
1340 err = qlcnic_get_board_info(adapter);
1341 if (err) {
1342 dev_err(&pdev->dev, "Error getting board config info.\n");
1343 goto err_out_iounmap;
1344 }
1345
1346 if (qlcnic_read_mac_addr(adapter))
1347 dev_warn(&pdev->dev, "failed to read mac addr\n");
1348
1349 if (qlcnic_setup_idc_param(adapter))
1350 goto err_out_iounmap;
1351
1352 err = adapter->nic_ops->start_firmware(adapter);
1353 if (err) {
1354 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1355 goto err_out_decr_ref;
1356 }
1357
1358 qlcnic_clear_stats(adapter);
1359
1360 qlcnic_setup_intr(adapter);
1361
1362 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1363 if (err)
1364 goto err_out_disable_msi;
1365
1366 pci_set_drvdata(pdev, adapter);
1367
1368 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1369
1370 switch (adapter->ahw.port_type) {
1371 case QLCNIC_GBE:
1372 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1373 adapter->netdev->name);
1374 break;
1375 case QLCNIC_XGBE:
1376 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1377 adapter->netdev->name);
1378 break;
1379 }
1380
1381 qlcnic_create_diag_entries(adapter);
1382
1383 return 0;
1384
1385 err_out_disable_msi:
1386 qlcnic_teardown_intr(adapter);
1387
1388 err_out_decr_ref:
1389 qlcnic_clr_all_drv_state(adapter);
1390
1391 err_out_iounmap:
1392 qlcnic_cleanup_pci_map(adapter);
1393
1394 err_out_free_netdev:
1395 free_netdev(netdev);
1396
1397 err_out_free_res:
1398 pci_release_regions(pdev);
1399
1400 err_out_disable_pdev:
1401 pci_set_drvdata(pdev, NULL);
1402 pci_disable_device(pdev);
1403 return err;
1404 }
1405
1406 static void __devexit qlcnic_remove(struct pci_dev *pdev)
1407 {
1408 struct qlcnic_adapter *adapter;
1409 struct net_device *netdev;
1410
1411 adapter = pci_get_drvdata(pdev);
1412 if (adapter == NULL)
1413 return;
1414
1415 netdev = adapter->netdev;
1416
1417 qlcnic_cancel_fw_work(adapter);
1418
1419 unregister_netdev(netdev);
1420
1421 qlcnic_detach(adapter);
1422
1423 if (adapter->npars != NULL)
1424 kfree(adapter->npars);
1425 if (adapter->eswitch != NULL)
1426 kfree(adapter->eswitch);
1427
1428 qlcnic_clr_all_drv_state(adapter);
1429
1430 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1431
1432 qlcnic_teardown_intr(adapter);
1433
1434 qlcnic_remove_diag_entries(adapter);
1435
1436 qlcnic_cleanup_pci_map(adapter);
1437
1438 qlcnic_release_firmware(adapter);
1439
1440 pci_release_regions(pdev);
1441 pci_disable_device(pdev);
1442 pci_set_drvdata(pdev, NULL);
1443
1444 free_netdev(netdev);
1445 }
1446 static int __qlcnic_shutdown(struct pci_dev *pdev)
1447 {
1448 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1449 struct net_device *netdev = adapter->netdev;
1450 int retval;
1451
1452 netif_device_detach(netdev);
1453
1454 qlcnic_cancel_fw_work(adapter);
1455
1456 if (netif_running(netdev))
1457 qlcnic_down(adapter, netdev);
1458
1459 qlcnic_clr_all_drv_state(adapter);
1460
1461 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1462
1463 retval = pci_save_state(pdev);
1464 if (retval)
1465 return retval;
1466
1467 if (qlcnic_wol_supported(adapter)) {
1468 pci_enable_wake(pdev, PCI_D3cold, 1);
1469 pci_enable_wake(pdev, PCI_D3hot, 1);
1470 }
1471
1472 return 0;
1473 }
1474
1475 static void qlcnic_shutdown(struct pci_dev *pdev)
1476 {
1477 if (__qlcnic_shutdown(pdev))
1478 return;
1479
1480 pci_disable_device(pdev);
1481 }
1482
1483 #ifdef CONFIG_PM
1484 static int
1485 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1486 {
1487 int retval;
1488
1489 retval = __qlcnic_shutdown(pdev);
1490 if (retval)
1491 return retval;
1492
1493 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1494 return 0;
1495 }
1496
1497 static int
1498 qlcnic_resume(struct pci_dev *pdev)
1499 {
1500 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1501 struct net_device *netdev = adapter->netdev;
1502 int err;
1503
1504 err = pci_enable_device(pdev);
1505 if (err)
1506 return err;
1507
1508 pci_set_power_state(pdev, PCI_D0);
1509 pci_set_master(pdev);
1510 pci_restore_state(pdev);
1511
1512 err = adapter->nic_ops->start_firmware(adapter);
1513 if (err) {
1514 dev_err(&pdev->dev, "failed to start firmware\n");
1515 return err;
1516 }
1517
1518 if (netif_running(netdev)) {
1519 err = qlcnic_up(adapter, netdev);
1520 if (err)
1521 goto done;
1522
1523 qlcnic_config_indev_addr(netdev, NETDEV_UP);
1524 }
1525 done:
1526 netif_device_attach(netdev);
1527 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1528 return 0;
1529 }
1530 #endif
1531
1532 static int qlcnic_open(struct net_device *netdev)
1533 {
1534 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1535 int err;
1536
1537 if (adapter->driver_mismatch)
1538 return -EIO;
1539
1540 err = qlcnic_attach(adapter);
1541 if (err)
1542 return err;
1543
1544 err = __qlcnic_up(adapter, netdev);
1545 if (err)
1546 goto err_out;
1547
1548 netif_start_queue(netdev);
1549
1550 return 0;
1551
1552 err_out:
1553 qlcnic_detach(adapter);
1554 return err;
1555 }
1556
1557 /*
1558 * qlcnic_close - Disables a network interface entry point
1559 */
1560 static int qlcnic_close(struct net_device *netdev)
1561 {
1562 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1563
1564 __qlcnic_down(adapter, netdev);
1565 return 0;
1566 }
1567
1568 static void
1569 qlcnic_tso_check(struct net_device *netdev,
1570 struct qlcnic_host_tx_ring *tx_ring,
1571 struct cmd_desc_type0 *first_desc,
1572 struct sk_buff *skb)
1573 {
1574 u8 opcode = TX_ETHER_PKT;
1575 __be16 protocol = skb->protocol;
1576 u16 flags = 0, vid = 0;
1577 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1578 struct cmd_desc_type0 *hwdesc;
1579 struct vlan_ethhdr *vh;
1580 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1581 u32 producer = tx_ring->producer;
1582
1583 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1584
1585 vh = (struct vlan_ethhdr *)skb->data;
1586 protocol = vh->h_vlan_encapsulated_proto;
1587 flags = FLAGS_VLAN_TAGGED;
1588
1589 } else if (vlan_tx_tag_present(skb)) {
1590
1591 flags = FLAGS_VLAN_OOB;
1592 vid = vlan_tx_tag_get(skb);
1593 qlcnic_set_tx_vlan_tci(first_desc, vid);
1594 vlan_oob = 1;
1595 }
1596
1597 if (*(skb->data) & BIT_0) {
1598 flags |= BIT_0;
1599 memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN);
1600 }
1601
1602 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1603 skb_shinfo(skb)->gso_size > 0) {
1604
1605 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1606
1607 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1608 first_desc->total_hdr_length = hdr_len;
1609 if (vlan_oob) {
1610 first_desc->total_hdr_length += VLAN_HLEN;
1611 first_desc->tcp_hdr_offset = VLAN_HLEN;
1612 first_desc->ip_hdr_offset = VLAN_HLEN;
1613 /* Only in case of TSO on vlan device */
1614 flags |= FLAGS_VLAN_TAGGED;
1615 }
1616
1617 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1618 TX_TCP_LSO6 : TX_TCP_LSO;
1619 tso = 1;
1620
1621 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1622 u8 l4proto;
1623
1624 if (protocol == cpu_to_be16(ETH_P_IP)) {
1625 l4proto = ip_hdr(skb)->protocol;
1626
1627 if (l4proto == IPPROTO_TCP)
1628 opcode = TX_TCP_PKT;
1629 else if (l4proto == IPPROTO_UDP)
1630 opcode = TX_UDP_PKT;
1631 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1632 l4proto = ipv6_hdr(skb)->nexthdr;
1633
1634 if (l4proto == IPPROTO_TCP)
1635 opcode = TX_TCPV6_PKT;
1636 else if (l4proto == IPPROTO_UDP)
1637 opcode = TX_UDPV6_PKT;
1638 }
1639 }
1640
1641 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1642 first_desc->ip_hdr_offset += skb_network_offset(skb);
1643 qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
1644
1645 if (!tso)
1646 return;
1647
1648 /* For LSO, we need to copy the MAC/IP/TCP headers into
1649 * the descriptor ring
1650 */
1651 copied = 0;
1652 offset = 2;
1653
1654 if (vlan_oob) {
1655 /* Create a TSO vlan header template for firmware */
1656
1657 hwdesc = &tx_ring->desc_head[producer];
1658 tx_ring->cmd_buf_arr[producer].skb = NULL;
1659
1660 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1661 hdr_len + VLAN_HLEN);
1662
1663 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1664 skb_copy_from_linear_data(skb, vh, 12);
1665 vh->h_vlan_proto = htons(ETH_P_8021Q);
1666 vh->h_vlan_TCI = htons(vid);
1667 skb_copy_from_linear_data_offset(skb, 12,
1668 (char *)vh + 16, copy_len - 16);
1669
1670 copied = copy_len - VLAN_HLEN;
1671 offset = 0;
1672
1673 producer = get_next_index(producer, tx_ring->num_desc);
1674 }
1675
1676 while (copied < hdr_len) {
1677
1678 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1679 (hdr_len - copied));
1680
1681 hwdesc = &tx_ring->desc_head[producer];
1682 tx_ring->cmd_buf_arr[producer].skb = NULL;
1683
1684 skb_copy_from_linear_data_offset(skb, copied,
1685 (char *)hwdesc + offset, copy_len);
1686
1687 copied += copy_len;
1688 offset = 0;
1689
1690 producer = get_next_index(producer, tx_ring->num_desc);
1691 }
1692
1693 tx_ring->producer = producer;
1694 barrier();
1695 adapter->stats.lso_frames++;
1696 }
1697
1698 static int
1699 qlcnic_map_tx_skb(struct pci_dev *pdev,
1700 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
1701 {
1702 struct qlcnic_skb_frag *nf;
1703 struct skb_frag_struct *frag;
1704 int i, nr_frags;
1705 dma_addr_t map;
1706
1707 nr_frags = skb_shinfo(skb)->nr_frags;
1708 nf = &pbuf->frag_array[0];
1709
1710 map = pci_map_single(pdev, skb->data,
1711 skb_headlen(skb), PCI_DMA_TODEVICE);
1712 if (pci_dma_mapping_error(pdev, map))
1713 goto out_err;
1714
1715 nf->dma = map;
1716 nf->length = skb_headlen(skb);
1717
1718 for (i = 0; i < nr_frags; i++) {
1719 frag = &skb_shinfo(skb)->frags[i];
1720 nf = &pbuf->frag_array[i+1];
1721
1722 map = pci_map_page(pdev, frag->page, frag->page_offset,
1723 frag->size, PCI_DMA_TODEVICE);
1724 if (pci_dma_mapping_error(pdev, map))
1725 goto unwind;
1726
1727 nf->dma = map;
1728 nf->length = frag->size;
1729 }
1730
1731 return 0;
1732
1733 unwind:
1734 while (--i >= 0) {
1735 nf = &pbuf->frag_array[i+1];
1736 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1737 }
1738
1739 nf = &pbuf->frag_array[0];
1740 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1741
1742 out_err:
1743 return -ENOMEM;
1744 }
1745
1746 static inline void
1747 qlcnic_clear_cmddesc(u64 *desc)
1748 {
1749 desc[0] = 0ULL;
1750 desc[2] = 0ULL;
1751 }
1752
1753 netdev_tx_t
1754 qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1755 {
1756 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1757 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
1758 struct qlcnic_cmd_buffer *pbuf;
1759 struct qlcnic_skb_frag *buffrag;
1760 struct cmd_desc_type0 *hwdesc, *first_desc;
1761 struct pci_dev *pdev;
1762 int i, k;
1763
1764 u32 producer;
1765 int frag_count, no_of_desc;
1766 u32 num_txd = tx_ring->num_desc;
1767
1768 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
1769 netif_stop_queue(netdev);
1770 return NETDEV_TX_BUSY;
1771 }
1772
1773 frag_count = skb_shinfo(skb)->nr_frags + 1;
1774
1775 /* 4 fragments per cmd des */
1776 no_of_desc = (frag_count + 3) >> 2;
1777
1778 if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
1779 netif_stop_queue(netdev);
1780 smp_mb();
1781 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
1782 netif_start_queue(netdev);
1783 else {
1784 adapter->stats.xmit_off++;
1785 return NETDEV_TX_BUSY;
1786 }
1787 }
1788
1789 producer = tx_ring->producer;
1790 pbuf = &tx_ring->cmd_buf_arr[producer];
1791
1792 pdev = adapter->pdev;
1793
1794 if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
1795 adapter->stats.tx_dma_map_error++;
1796 goto drop_packet;
1797 }
1798
1799 pbuf->skb = skb;
1800 pbuf->frag_count = frag_count;
1801
1802 first_desc = hwdesc = &tx_ring->desc_head[producer];
1803 qlcnic_clear_cmddesc((u64 *)hwdesc);
1804
1805 qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
1806 qlcnic_set_tx_port(first_desc, adapter->portnum);
1807
1808 for (i = 0; i < frag_count; i++) {
1809
1810 k = i % 4;
1811
1812 if ((k == 0) && (i > 0)) {
1813 /* move to next desc.*/
1814 producer = get_next_index(producer, num_txd);
1815 hwdesc = &tx_ring->desc_head[producer];
1816 qlcnic_clear_cmddesc((u64 *)hwdesc);
1817 tx_ring->cmd_buf_arr[producer].skb = NULL;
1818 }
1819
1820 buffrag = &pbuf->frag_array[i];
1821
1822 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
1823 switch (k) {
1824 case 0:
1825 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1826 break;
1827 case 1:
1828 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
1829 break;
1830 case 2:
1831 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
1832 break;
1833 case 3:
1834 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
1835 break;
1836 }
1837 }
1838
1839 tx_ring->producer = get_next_index(producer, num_txd);
1840
1841 qlcnic_tso_check(netdev, tx_ring, first_desc, skb);
1842
1843 qlcnic_update_cmd_producer(adapter, tx_ring);
1844
1845 adapter->stats.txbytes += skb->len;
1846 adapter->stats.xmitcalled++;
1847
1848 return NETDEV_TX_OK;
1849
1850 drop_packet:
1851 adapter->stats.txdropped++;
1852 dev_kfree_skb_any(skb);
1853 return NETDEV_TX_OK;
1854 }
1855
1856 static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
1857 {
1858 struct net_device *netdev = adapter->netdev;
1859 u32 temp, temp_state, temp_val;
1860 int rv = 0;
1861
1862 temp = QLCRD32(adapter, CRB_TEMP_STATE);
1863
1864 temp_state = qlcnic_get_temp_state(temp);
1865 temp_val = qlcnic_get_temp_val(temp);
1866
1867 if (temp_state == QLCNIC_TEMP_PANIC) {
1868 dev_err(&netdev->dev,
1869 "Device temperature %d degrees C exceeds"
1870 " maximum allowed. Hardware has been shut down.\n",
1871 temp_val);
1872 rv = 1;
1873 } else if (temp_state == QLCNIC_TEMP_WARN) {
1874 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
1875 dev_err(&netdev->dev,
1876 "Device temperature %d degrees C "
1877 "exceeds operating range."
1878 " Immediate action needed.\n",
1879 temp_val);
1880 }
1881 } else {
1882 if (adapter->temp == QLCNIC_TEMP_WARN) {
1883 dev_info(&netdev->dev,
1884 "Device temperature is now %d degrees C"
1885 " in normal range.\n", temp_val);
1886 }
1887 }
1888 adapter->temp = temp_state;
1889 return rv;
1890 }
1891
1892 void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
1893 {
1894 struct net_device *netdev = adapter->netdev;
1895
1896 if (adapter->ahw.linkup && !linkup) {
1897 dev_info(&netdev->dev, "NIC Link is down\n");
1898 adapter->ahw.linkup = 0;
1899 if (netif_running(netdev)) {
1900 netif_carrier_off(netdev);
1901 netif_stop_queue(netdev);
1902 }
1903 } else if (!adapter->ahw.linkup && linkup) {
1904 dev_info(&netdev->dev, "NIC Link is up\n");
1905 adapter->ahw.linkup = 1;
1906 if (netif_running(netdev)) {
1907 netif_carrier_on(netdev);
1908 netif_wake_queue(netdev);
1909 }
1910 }
1911 }
1912
1913 static void qlcnic_tx_timeout(struct net_device *netdev)
1914 {
1915 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1916
1917 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
1918 return;
1919
1920 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
1921
1922 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
1923 adapter->need_fw_reset = 1;
1924 else
1925 adapter->reset_context = 1;
1926 }
1927
1928 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
1929 {
1930 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1931 struct net_device_stats *stats = &netdev->stats;
1932
1933 memset(stats, 0, sizeof(*stats));
1934
1935 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
1936 stats->tx_packets = adapter->stats.xmitfinished;
1937 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
1938 stats->tx_bytes = adapter->stats.txbytes;
1939 stats->rx_dropped = adapter->stats.rxdropped;
1940 stats->tx_dropped = adapter->stats.txdropped;
1941
1942 return stats;
1943 }
1944
1945 static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
1946 {
1947 u32 status;
1948
1949 status = readl(adapter->isr_int_vec);
1950
1951 if (!(status & adapter->int_vec_bit))
1952 return IRQ_NONE;
1953
1954 /* check interrupt state machine, to be sure */
1955 status = readl(adapter->crb_int_state_reg);
1956 if (!ISR_LEGACY_INT_TRIGGERED(status))
1957 return IRQ_NONE;
1958
1959 writel(0xffffffff, adapter->tgt_status_reg);
1960 /* read twice to ensure write is flushed */
1961 readl(adapter->isr_int_vec);
1962 readl(adapter->isr_int_vec);
1963
1964 return IRQ_HANDLED;
1965 }
1966
1967 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
1968 {
1969 struct qlcnic_host_sds_ring *sds_ring = data;
1970 struct qlcnic_adapter *adapter = sds_ring->adapter;
1971
1972 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1973 goto done;
1974 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
1975 writel(0xffffffff, adapter->tgt_status_reg);
1976 goto done;
1977 }
1978
1979 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
1980 return IRQ_NONE;
1981
1982 done:
1983 adapter->diag_cnt++;
1984 qlcnic_enable_int(sds_ring);
1985 return IRQ_HANDLED;
1986 }
1987
1988 static irqreturn_t qlcnic_intr(int irq, void *data)
1989 {
1990 struct qlcnic_host_sds_ring *sds_ring = data;
1991 struct qlcnic_adapter *adapter = sds_ring->adapter;
1992
1993 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
1994 return IRQ_NONE;
1995
1996 napi_schedule(&sds_ring->napi);
1997
1998 return IRQ_HANDLED;
1999 }
2000
2001 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2002 {
2003 struct qlcnic_host_sds_ring *sds_ring = data;
2004 struct qlcnic_adapter *adapter = sds_ring->adapter;
2005
2006 /* clear interrupt */
2007 writel(0xffffffff, adapter->tgt_status_reg);
2008
2009 napi_schedule(&sds_ring->napi);
2010 return IRQ_HANDLED;
2011 }
2012
2013 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2014 {
2015 struct qlcnic_host_sds_ring *sds_ring = data;
2016
2017 napi_schedule(&sds_ring->napi);
2018 return IRQ_HANDLED;
2019 }
2020
2021 static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
2022 {
2023 u32 sw_consumer, hw_consumer;
2024 int count = 0, i;
2025 struct qlcnic_cmd_buffer *buffer;
2026 struct pci_dev *pdev = adapter->pdev;
2027 struct net_device *netdev = adapter->netdev;
2028 struct qlcnic_skb_frag *frag;
2029 int done;
2030 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
2031
2032 if (!spin_trylock(&adapter->tx_clean_lock))
2033 return 1;
2034
2035 sw_consumer = tx_ring->sw_consumer;
2036 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2037
2038 while (sw_consumer != hw_consumer) {
2039 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
2040 if (buffer->skb) {
2041 frag = &buffer->frag_array[0];
2042 pci_unmap_single(pdev, frag->dma, frag->length,
2043 PCI_DMA_TODEVICE);
2044 frag->dma = 0ULL;
2045 for (i = 1; i < buffer->frag_count; i++) {
2046 frag++;
2047 pci_unmap_page(pdev, frag->dma, frag->length,
2048 PCI_DMA_TODEVICE);
2049 frag->dma = 0ULL;
2050 }
2051
2052 adapter->stats.xmitfinished++;
2053 dev_kfree_skb_any(buffer->skb);
2054 buffer->skb = NULL;
2055 }
2056
2057 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
2058 if (++count >= MAX_STATUS_HANDLE)
2059 break;
2060 }
2061
2062 if (count && netif_running(netdev)) {
2063 tx_ring->sw_consumer = sw_consumer;
2064
2065 smp_mb();
2066
2067 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
2068 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
2069 netif_wake_queue(netdev);
2070 adapter->stats.xmit_on++;
2071 }
2072 }
2073 adapter->tx_timeo_cnt = 0;
2074 }
2075 /*
2076 * If everything is freed up to consumer then check if the ring is full
2077 * If the ring is full then check if more needs to be freed and
2078 * schedule the call back again.
2079 *
2080 * This happens when there are 2 CPUs. One could be freeing and the
2081 * other filling it. If the ring is full when we get out of here and
2082 * the card has already interrupted the host then the host can miss the
2083 * interrupt.
2084 *
2085 * There is still a possible race condition and the host could miss an
2086 * interrupt. The card has to take care of this.
2087 */
2088 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2089 done = (sw_consumer == hw_consumer);
2090 spin_unlock(&adapter->tx_clean_lock);
2091
2092 return done;
2093 }
2094
2095 static int qlcnic_poll(struct napi_struct *napi, int budget)
2096 {
2097 struct qlcnic_host_sds_ring *sds_ring =
2098 container_of(napi, struct qlcnic_host_sds_ring, napi);
2099
2100 struct qlcnic_adapter *adapter = sds_ring->adapter;
2101
2102 int tx_complete;
2103 int work_done;
2104
2105 tx_complete = qlcnic_process_cmd_ring(adapter);
2106
2107 work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2108
2109 if ((work_done < budget) && tx_complete) {
2110 napi_complete(&sds_ring->napi);
2111 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2112 qlcnic_enable_int(sds_ring);
2113 }
2114
2115 return work_done;
2116 }
2117
2118 static int qlcnic_rx_poll(struct napi_struct *napi, int budget)
2119 {
2120 struct qlcnic_host_sds_ring *sds_ring =
2121 container_of(napi, struct qlcnic_host_sds_ring, napi);
2122
2123 struct qlcnic_adapter *adapter = sds_ring->adapter;
2124 int work_done;
2125
2126 work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2127
2128 if (work_done < budget) {
2129 napi_complete(&sds_ring->napi);
2130 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2131 qlcnic_enable_int(sds_ring);
2132 }
2133
2134 return work_done;
2135 }
2136
2137 #ifdef CONFIG_NET_POLL_CONTROLLER
2138 static void qlcnic_poll_controller(struct net_device *netdev)
2139 {
2140 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2141 disable_irq(adapter->irq);
2142 qlcnic_intr(adapter->irq, adapter);
2143 enable_irq(adapter->irq);
2144 }
2145 #endif
2146
2147 static void
2148 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2149 {
2150 u32 val;
2151
2152 val = adapter->portnum & 0xf;
2153 val |= encoding << 7;
2154 val |= (jiffies - adapter->dev_rst_time) << 8;
2155
2156 QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2157 adapter->dev_rst_time = jiffies;
2158 }
2159
2160 static int
2161 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2162 {
2163 u32 val;
2164
2165 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2166 state != QLCNIC_DEV_NEED_QUISCENT);
2167
2168 if (qlcnic_api_lock(adapter))
2169 return -EIO;
2170
2171 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2172
2173 if (state == QLCNIC_DEV_NEED_RESET)
2174 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2175 else if (state == QLCNIC_DEV_NEED_QUISCENT)
2176 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2177
2178 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2179
2180 qlcnic_api_unlock(adapter);
2181
2182 return 0;
2183 }
2184
2185 static int
2186 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2187 {
2188 u32 val;
2189
2190 if (qlcnic_api_lock(adapter))
2191 return -EBUSY;
2192
2193 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2194 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2195 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2196
2197 qlcnic_api_unlock(adapter);
2198
2199 return 0;
2200 }
2201
2202 static void
2203 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter)
2204 {
2205 u32 val;
2206
2207 if (qlcnic_api_lock(adapter))
2208 goto err;
2209
2210 val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
2211 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2212 QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val);
2213
2214 if (!(val & 0x11111111))
2215 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
2216
2217 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2218 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2219 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2220
2221 qlcnic_api_unlock(adapter);
2222 err:
2223 adapter->fw_fail_cnt = 0;
2224 clear_bit(__QLCNIC_START_FW, &adapter->state);
2225 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2226 }
2227
2228 /* Grab api lock, before checking state */
2229 static int
2230 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2231 {
2232 int act, state;
2233
2234 state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2235 act = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
2236
2237 if (((state & 0x11111111) == (act & 0x11111111)) ||
2238 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2239 return 0;
2240 else
2241 return 1;
2242 }
2243
2244 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2245 {
2246 u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2247
2248 if (val != QLCNIC_DRV_IDC_VER) {
2249 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2250 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2251 }
2252
2253 return 0;
2254 }
2255
2256 static int
2257 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2258 {
2259 u32 val, prev_state;
2260 u8 dev_init_timeo = adapter->dev_init_timeo;
2261 u8 portnum = adapter->portnum;
2262 u8 ret;
2263
2264 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2265 return 1;
2266
2267 if (qlcnic_api_lock(adapter))
2268 return -1;
2269
2270 val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
2271 if (!(val & (1 << (portnum * 4)))) {
2272 QLC_DEV_SET_REF_CNT(val, portnum);
2273 QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val);
2274 }
2275
2276 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2277 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2278
2279 switch (prev_state) {
2280 case QLCNIC_DEV_COLD:
2281 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
2282 QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER);
2283 qlcnic_idc_debug_info(adapter, 0);
2284 qlcnic_api_unlock(adapter);
2285 return 1;
2286
2287 case QLCNIC_DEV_READY:
2288 ret = qlcnic_check_idc_ver(adapter);
2289 qlcnic_api_unlock(adapter);
2290 return ret;
2291
2292 case QLCNIC_DEV_NEED_RESET:
2293 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2294 QLC_DEV_SET_RST_RDY(val, portnum);
2295 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2296 break;
2297
2298 case QLCNIC_DEV_NEED_QUISCENT:
2299 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2300 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2301 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2302 break;
2303
2304 case QLCNIC_DEV_FAILED:
2305 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2306 qlcnic_api_unlock(adapter);
2307 return -1;
2308
2309 case QLCNIC_DEV_INITIALIZING:
2310 case QLCNIC_DEV_QUISCENT:
2311 break;
2312 }
2313
2314 qlcnic_api_unlock(adapter);
2315
2316 do {
2317 msleep(1000);
2318 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2319
2320 if (prev_state == QLCNIC_DEV_QUISCENT)
2321 continue;
2322 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2323
2324 if (!dev_init_timeo) {
2325 dev_err(&adapter->pdev->dev,
2326 "Waiting for device to initialize timeout\n");
2327 return -1;
2328 }
2329
2330 if (qlcnic_api_lock(adapter))
2331 return -1;
2332
2333 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2334 QLC_DEV_CLR_RST_QSCNT(val, portnum);
2335 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2336
2337 ret = qlcnic_check_idc_ver(adapter);
2338 qlcnic_api_unlock(adapter);
2339
2340 return ret;
2341 }
2342
2343 static void
2344 qlcnic_fwinit_work(struct work_struct *work)
2345 {
2346 struct qlcnic_adapter *adapter = container_of(work,
2347 struct qlcnic_adapter, fw_work.work);
2348 u32 dev_state = 0xf, npar_state;
2349
2350 if (qlcnic_api_lock(adapter))
2351 goto err_ret;
2352
2353 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2354 if (dev_state == QLCNIC_DEV_QUISCENT) {
2355 qlcnic_api_unlock(adapter);
2356 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2357 FW_POLL_DELAY * 2);
2358 return;
2359 }
2360
2361 if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
2362 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2363 if (npar_state == QLCNIC_DEV_NPAR_RDY) {
2364 qlcnic_api_unlock(adapter);
2365 goto wait_npar;
2366 } else {
2367 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2368 FW_POLL_DELAY);
2369 qlcnic_api_unlock(adapter);
2370 return;
2371 }
2372 }
2373
2374 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2375 dev_err(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2376 adapter->reset_ack_timeo);
2377 goto skip_ack_check;
2378 }
2379
2380 if (!qlcnic_check_drv_state(adapter)) {
2381 skip_ack_check:
2382 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2383
2384 if (dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2385 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2386 QLCNIC_DEV_QUISCENT);
2387 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2388 FW_POLL_DELAY * 2);
2389 QLCDB(adapter, DRV, "Quiscing the driver\n");
2390 qlcnic_idc_debug_info(adapter, 0);
2391
2392 qlcnic_api_unlock(adapter);
2393 return;
2394 }
2395
2396 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2397 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2398 QLCNIC_DEV_INITIALIZING);
2399 set_bit(__QLCNIC_START_FW, &adapter->state);
2400 QLCDB(adapter, DRV, "Restarting fw\n");
2401 qlcnic_idc_debug_info(adapter, 0);
2402 }
2403
2404 qlcnic_api_unlock(adapter);
2405
2406 if (!adapter->nic_ops->start_firmware(adapter)) {
2407 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2408 return;
2409 }
2410 goto err_ret;
2411 }
2412
2413 qlcnic_api_unlock(adapter);
2414
2415 wait_npar:
2416 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2417 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2418
2419 switch (dev_state) {
2420 case QLCNIC_DEV_QUISCENT:
2421 case QLCNIC_DEV_NEED_QUISCENT:
2422 case QLCNIC_DEV_NEED_RESET:
2423 qlcnic_schedule_work(adapter,
2424 qlcnic_fwinit_work, FW_POLL_DELAY);
2425 return;
2426 case QLCNIC_DEV_FAILED:
2427 break;
2428
2429 default:
2430 if (!adapter->nic_ops->start_firmware(adapter)) {
2431 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2432 return;
2433 }
2434 }
2435
2436 err_ret:
2437 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2438 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2439 netif_device_attach(adapter->netdev);
2440 qlcnic_clr_all_drv_state(adapter);
2441 }
2442
2443 static void
2444 qlcnic_detach_work(struct work_struct *work)
2445 {
2446 struct qlcnic_adapter *adapter = container_of(work,
2447 struct qlcnic_adapter, fw_work.work);
2448 struct net_device *netdev = adapter->netdev;
2449 u32 status;
2450
2451 netif_device_detach(netdev);
2452
2453 qlcnic_down(adapter, netdev);
2454
2455 status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2456
2457 if (status & QLCNIC_RCODE_FATAL_ERROR)
2458 goto err_ret;
2459
2460 if (adapter->temp == QLCNIC_TEMP_PANIC)
2461 goto err_ret;
2462
2463 if (qlcnic_set_drv_state(adapter, adapter->dev_state))
2464 goto err_ret;
2465
2466 adapter->fw_wait_cnt = 0;
2467
2468 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2469
2470 return;
2471
2472 err_ret:
2473 dev_err(&adapter->pdev->dev, "detach failed; status=%d temp=%d\n",
2474 status, adapter->temp);
2475 netif_device_attach(netdev);
2476 qlcnic_clr_all_drv_state(adapter);
2477
2478 }
2479
2480 /*Transit to RESET state from READY state only */
2481 static void
2482 qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
2483 {
2484 u32 state;
2485
2486 if (qlcnic_api_lock(adapter))
2487 return;
2488
2489 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2490
2491 if (state == QLCNIC_DEV_READY) {
2492 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
2493 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2494 qlcnic_idc_debug_info(adapter, 0);
2495 }
2496
2497 qlcnic_api_unlock(adapter);
2498 }
2499
2500 /* Transit to NPAR READY state from NPAR NOT READY state */
2501 static void
2502 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2503 {
2504 u32 state;
2505
2506 if (qlcnic_api_lock(adapter))
2507 return;
2508
2509 state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2510
2511 if (state != QLCNIC_DEV_NPAR_RDY) {
2512 QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2513 QLCNIC_DEV_NPAR_RDY);
2514 QLCDB(adapter, DRV, "NPAR READY state set\n");
2515 }
2516
2517 qlcnic_api_unlock(adapter);
2518 }
2519
2520 static void
2521 qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2522 work_func_t func, int delay)
2523 {
2524 INIT_DELAYED_WORK(&adapter->fw_work, func);
2525 schedule_delayed_work(&adapter->fw_work, round_jiffies_relative(delay));
2526 }
2527
2528 static void
2529 qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
2530 {
2531 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2532 msleep(10);
2533
2534 cancel_delayed_work_sync(&adapter->fw_work);
2535 }
2536
2537 static void
2538 qlcnic_attach_work(struct work_struct *work)
2539 {
2540 struct qlcnic_adapter *adapter = container_of(work,
2541 struct qlcnic_adapter, fw_work.work);
2542 struct net_device *netdev = adapter->netdev;
2543
2544 if (netif_running(netdev)) {
2545 if (qlcnic_up(adapter, netdev))
2546 goto done;
2547
2548 qlcnic_config_indev_addr(netdev, NETDEV_UP);
2549 }
2550
2551 done:
2552 netif_device_attach(netdev);
2553 adapter->fw_fail_cnt = 0;
2554 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2555
2556 if (!qlcnic_clr_drv_state(adapter))
2557 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2558 FW_POLL_DELAY);
2559 }
2560
2561 static int
2562 qlcnic_check_health(struct qlcnic_adapter *adapter)
2563 {
2564 u32 state = 0, heartbit;
2565 struct net_device *netdev = adapter->netdev;
2566
2567 if (qlcnic_check_temp(adapter))
2568 goto detach;
2569
2570 if (adapter->need_fw_reset)
2571 qlcnic_dev_request_reset(adapter);
2572
2573 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2574 if (state == QLCNIC_DEV_NEED_RESET || state == QLCNIC_DEV_NEED_QUISCENT)
2575 adapter->need_fw_reset = 1;
2576
2577 heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2578 if (heartbit != adapter->heartbit) {
2579 adapter->heartbit = heartbit;
2580 adapter->fw_fail_cnt = 0;
2581 if (adapter->need_fw_reset)
2582 goto detach;
2583
2584 if (adapter->reset_context &&
2585 auto_fw_reset == AUTO_FW_RESET_ENABLED) {
2586 qlcnic_reset_hw_context(adapter);
2587 adapter->netdev->trans_start = jiffies;
2588 }
2589
2590 return 0;
2591 }
2592
2593 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2594 return 0;
2595
2596 qlcnic_dev_request_reset(adapter);
2597
2598 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED))
2599 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2600
2601 dev_info(&netdev->dev, "firmware hang detected\n");
2602
2603 detach:
2604 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
2605 QLCNIC_DEV_NEED_RESET;
2606
2607 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2608 !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) {
2609
2610 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
2611 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
2612 }
2613
2614 return 1;
2615 }
2616
2617 static void
2618 qlcnic_fw_poll_work(struct work_struct *work)
2619 {
2620 struct qlcnic_adapter *adapter = container_of(work,
2621 struct qlcnic_adapter, fw_work.work);
2622
2623 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2624 goto reschedule;
2625
2626
2627 if (qlcnic_check_health(adapter))
2628 return;
2629
2630 reschedule:
2631 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2632 }
2633
2634 static int
2635 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
2636 {
2637 int err;
2638
2639 err = qlcnic_can_start_firmware(adapter);
2640 if (err)
2641 return err;
2642
2643 qlcnic_check_options(adapter);
2644
2645 adapter->need_fw_reset = 0;
2646
2647 return err;
2648 }
2649
2650 static int
2651 qlcnicvf_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
2652 {
2653 return -EOPNOTSUPP;
2654 }
2655
2656 static int
2657 qlcnicvf_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
2658 {
2659 return -EOPNOTSUPP;
2660 }
2661
2662 static int
2663 qlcnicvf_set_ilb_mode(struct qlcnic_adapter *adapter)
2664 {
2665 return -EOPNOTSUPP;
2666 }
2667
2668 static void
2669 qlcnicvf_clear_ilb_mode(struct qlcnic_adapter *adapter)
2670 {
2671 return;
2672 }
2673
2674 static ssize_t
2675 qlcnic_store_bridged_mode(struct device *dev,
2676 struct device_attribute *attr, const char *buf, size_t len)
2677 {
2678 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2679 unsigned long new;
2680 int ret = -EINVAL;
2681
2682 if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
2683 goto err_out;
2684
2685 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
2686 goto err_out;
2687
2688 if (strict_strtoul(buf, 2, &new))
2689 goto err_out;
2690
2691 if (!adapter->nic_ops->config_bridged_mode(adapter, !!new))
2692 ret = len;
2693
2694 err_out:
2695 return ret;
2696 }
2697
2698 static ssize_t
2699 qlcnic_show_bridged_mode(struct device *dev,
2700 struct device_attribute *attr, char *buf)
2701 {
2702 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2703 int bridged_mode = 0;
2704
2705 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
2706 bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
2707
2708 return sprintf(buf, "%d\n", bridged_mode);
2709 }
2710
2711 static struct device_attribute dev_attr_bridged_mode = {
2712 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2713 .show = qlcnic_show_bridged_mode,
2714 .store = qlcnic_store_bridged_mode,
2715 };
2716
2717 static ssize_t
2718 qlcnic_store_diag_mode(struct device *dev,
2719 struct device_attribute *attr, const char *buf, size_t len)
2720 {
2721 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2722 unsigned long new;
2723
2724 if (strict_strtoul(buf, 2, &new))
2725 return -EINVAL;
2726
2727 if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
2728 adapter->flags ^= QLCNIC_DIAG_ENABLED;
2729
2730 return len;
2731 }
2732
2733 static ssize_t
2734 qlcnic_show_diag_mode(struct device *dev,
2735 struct device_attribute *attr, char *buf)
2736 {
2737 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2738
2739 return sprintf(buf, "%d\n",
2740 !!(adapter->flags & QLCNIC_DIAG_ENABLED));
2741 }
2742
2743 static struct device_attribute dev_attr_diag_mode = {
2744 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2745 .show = qlcnic_show_diag_mode,
2746 .store = qlcnic_store_diag_mode,
2747 };
2748
2749 static int
2750 qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
2751 loff_t offset, size_t size)
2752 {
2753 size_t crb_size = 4;
2754
2755 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
2756 return -EIO;
2757
2758 if (offset < QLCNIC_PCI_CRBSPACE) {
2759 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM,
2760 QLCNIC_PCI_CAMQM_END))
2761 crb_size = 8;
2762 else
2763 return -EINVAL;
2764 }
2765
2766 if ((size != crb_size) || (offset & (crb_size-1)))
2767 return -EINVAL;
2768
2769 return 0;
2770 }
2771
2772 static ssize_t
2773 qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2774 struct bin_attribute *attr,
2775 char *buf, loff_t offset, size_t size)
2776 {
2777 struct device *dev = container_of(kobj, struct device, kobj);
2778 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2779 u32 data;
2780 u64 qmdata;
2781 int ret;
2782
2783 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
2784 if (ret != 0)
2785 return ret;
2786
2787 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
2788 qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
2789 memcpy(buf, &qmdata, size);
2790 } else {
2791 data = QLCRD32(adapter, offset);
2792 memcpy(buf, &data, size);
2793 }
2794 return size;
2795 }
2796
2797 static ssize_t
2798 qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2799 struct bin_attribute *attr,
2800 char *buf, loff_t offset, size_t size)
2801 {
2802 struct device *dev = container_of(kobj, struct device, kobj);
2803 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2804 u32 data;
2805 u64 qmdata;
2806 int ret;
2807
2808 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
2809 if (ret != 0)
2810 return ret;
2811
2812 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
2813 memcpy(&qmdata, buf, size);
2814 qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
2815 } else {
2816 memcpy(&data, buf, size);
2817 QLCWR32(adapter, offset, data);
2818 }
2819 return size;
2820 }
2821
2822 static int
2823 qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
2824 loff_t offset, size_t size)
2825 {
2826 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
2827 return -EIO;
2828
2829 if ((size != 8) || (offset & 0x7))
2830 return -EIO;
2831
2832 return 0;
2833 }
2834
2835 static ssize_t
2836 qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2837 struct bin_attribute *attr,
2838 char *buf, loff_t offset, size_t size)
2839 {
2840 struct device *dev = container_of(kobj, struct device, kobj);
2841 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2842 u64 data;
2843 int ret;
2844
2845 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
2846 if (ret != 0)
2847 return ret;
2848
2849 if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
2850 return -EIO;
2851
2852 memcpy(buf, &data, size);
2853
2854 return size;
2855 }
2856
2857 static ssize_t
2858 qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj,
2859 struct bin_attribute *attr,
2860 char *buf, loff_t offset, size_t size)
2861 {
2862 struct device *dev = container_of(kobj, struct device, kobj);
2863 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2864 u64 data;
2865 int ret;
2866
2867 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
2868 if (ret != 0)
2869 return ret;
2870
2871 memcpy(&data, buf, size);
2872
2873 if (qlcnic_pci_mem_write_2M(adapter, offset, data))
2874 return -EIO;
2875
2876 return size;
2877 }
2878
2879
2880 static struct bin_attribute bin_attr_crb = {
2881 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2882 .size = 0,
2883 .read = qlcnic_sysfs_read_crb,
2884 .write = qlcnic_sysfs_write_crb,
2885 };
2886
2887 static struct bin_attribute bin_attr_mem = {
2888 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2889 .size = 0,
2890 .read = qlcnic_sysfs_read_mem,
2891 .write = qlcnic_sysfs_write_mem,
2892 };
2893
2894 int
2895 validate_pm_config(struct qlcnic_adapter *adapter,
2896 struct qlcnic_pm_func_cfg *pm_cfg, int count)
2897 {
2898
2899 u8 src_pci_func, s_esw_id, d_esw_id;
2900 u8 dest_pci_func;
2901 int i;
2902
2903 for (i = 0; i < count; i++) {
2904 src_pci_func = pm_cfg[i].pci_func;
2905 dest_pci_func = pm_cfg[i].dest_npar;
2906 if (src_pci_func >= QLCNIC_MAX_PCI_FUNC
2907 || dest_pci_func >= QLCNIC_MAX_PCI_FUNC)
2908 return QL_STATUS_INVALID_PARAM;
2909
2910 if (adapter->npars[src_pci_func].type != QLCNIC_TYPE_NIC)
2911 return QL_STATUS_INVALID_PARAM;
2912
2913 if (adapter->npars[dest_pci_func].type != QLCNIC_TYPE_NIC)
2914 return QL_STATUS_INVALID_PARAM;
2915
2916 if (!IS_VALID_MODE(pm_cfg[i].action))
2917 return QL_STATUS_INVALID_PARAM;
2918
2919 s_esw_id = adapter->npars[src_pci_func].phy_port;
2920 d_esw_id = adapter->npars[dest_pci_func].phy_port;
2921
2922 if (s_esw_id != d_esw_id)
2923 return QL_STATUS_INVALID_PARAM;
2924
2925 }
2926 return 0;
2927
2928 }
2929
2930 static ssize_t
2931 qlcnic_sysfs_write_pm_config(struct file *filp, struct kobject *kobj,
2932 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
2933 {
2934 struct device *dev = container_of(kobj, struct device, kobj);
2935 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2936 struct qlcnic_pm_func_cfg *pm_cfg;
2937 u32 id, action, pci_func;
2938 int count, rem, i, ret;
2939
2940 count = size / sizeof(struct qlcnic_pm_func_cfg);
2941 rem = size % sizeof(struct qlcnic_pm_func_cfg);
2942 if (rem)
2943 return QL_STATUS_INVALID_PARAM;
2944
2945 pm_cfg = (struct qlcnic_pm_func_cfg *) buf;
2946
2947 ret = validate_pm_config(adapter, pm_cfg, count);
2948 if (ret)
2949 return ret;
2950 for (i = 0; i < count; i++) {
2951 pci_func = pm_cfg[i].pci_func;
2952 action = pm_cfg[i].action;
2953 id = adapter->npars[pci_func].phy_port;
2954 ret = qlcnic_config_port_mirroring(adapter, id,
2955 action, pci_func);
2956 if (ret)
2957 return ret;
2958 }
2959
2960 for (i = 0; i < count; i++) {
2961 pci_func = pm_cfg[i].pci_func;
2962 id = adapter->npars[pci_func].phy_port;
2963 adapter->npars[pci_func].enable_pm = pm_cfg[i].action;
2964 adapter->npars[pci_func].dest_npar = id;
2965 }
2966 return size;
2967 }
2968
2969 static ssize_t
2970 qlcnic_sysfs_read_pm_config(struct file *filp, struct kobject *kobj,
2971 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
2972 {
2973 struct device *dev = container_of(kobj, struct device, kobj);
2974 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2975 struct qlcnic_pm_func_cfg pm_cfg[QLCNIC_MAX_PCI_FUNC];
2976 int i;
2977
2978 if (size != sizeof(pm_cfg))
2979 return QL_STATUS_INVALID_PARAM;
2980
2981 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
2982 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
2983 continue;
2984 pm_cfg[i].action = adapter->npars[i].enable_pm;
2985 pm_cfg[i].dest_npar = 0;
2986 pm_cfg[i].pci_func = i;
2987 }
2988 memcpy(buf, &pm_cfg, size);
2989
2990 return size;
2991 }
2992
2993 int
2994 validate_esw_config(struct qlcnic_adapter *adapter,
2995 struct qlcnic_esw_func_cfg *esw_cfg, int count)
2996 {
2997 u8 pci_func;
2998 int i;
2999
3000 for (i = 0; i < count; i++) {
3001 pci_func = esw_cfg[i].pci_func;
3002 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3003 return QL_STATUS_INVALID_PARAM;
3004
3005 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3006 return QL_STATUS_INVALID_PARAM;
3007
3008 if (esw_cfg->host_vlan_tag == 1)
3009 if (!IS_VALID_VLAN(esw_cfg[i].vlan_id))
3010 return QL_STATUS_INVALID_PARAM;
3011
3012 if (!IS_VALID_MODE(esw_cfg[i].promisc_mode)
3013 || !IS_VALID_MODE(esw_cfg[i].host_vlan_tag)
3014 || !IS_VALID_MODE(esw_cfg[i].mac_learning)
3015 || !IS_VALID_MODE(esw_cfg[i].discard_tagged))
3016 return QL_STATUS_INVALID_PARAM;
3017 }
3018
3019 return 0;
3020 }
3021
3022 static ssize_t
3023 qlcnic_sysfs_write_esw_config(struct file *file, struct kobject *kobj,
3024 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3025 {
3026 struct device *dev = container_of(kobj, struct device, kobj);
3027 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3028 struct qlcnic_esw_func_cfg *esw_cfg;
3029 u8 id, discard_tagged, promsc_mode, mac_learn;
3030 u8 vlan_tagging, pci_func, vlan_id;
3031 int count, rem, i, ret;
3032
3033 count = size / sizeof(struct qlcnic_esw_func_cfg);
3034 rem = size % sizeof(struct qlcnic_esw_func_cfg);
3035 if (rem)
3036 return QL_STATUS_INVALID_PARAM;
3037
3038 esw_cfg = (struct qlcnic_esw_func_cfg *) buf;
3039 ret = validate_esw_config(adapter, esw_cfg, count);
3040 if (ret)
3041 return ret;
3042
3043 for (i = 0; i < count; i++) {
3044 pci_func = esw_cfg[i].pci_func;
3045 id = adapter->npars[pci_func].phy_port;
3046 vlan_tagging = esw_cfg[i].host_vlan_tag;
3047 promsc_mode = esw_cfg[i].promisc_mode;
3048 mac_learn = esw_cfg[i].mac_learning;
3049 vlan_id = esw_cfg[i].vlan_id;
3050 discard_tagged = esw_cfg[i].discard_tagged;
3051 ret = qlcnic_config_switch_port(adapter, id, vlan_tagging,
3052 discard_tagged,
3053 promsc_mode,
3054 mac_learn,
3055 pci_func,
3056 vlan_id);
3057 if (ret)
3058 return ret;
3059 }
3060
3061 for (i = 0; i < count; i++) {
3062 pci_func = esw_cfg[i].pci_func;
3063 adapter->npars[pci_func].promisc_mode = esw_cfg[i].promisc_mode;
3064 adapter->npars[pci_func].mac_learning = esw_cfg[i].mac_learning;
3065 adapter->npars[pci_func].vlan_id = esw_cfg[i].vlan_id;
3066 adapter->npars[pci_func].discard_tagged =
3067 esw_cfg[i].discard_tagged;
3068 adapter->npars[pci_func].host_vlan_tag =
3069 esw_cfg[i].host_vlan_tag;
3070 }
3071
3072 return size;
3073 }
3074
3075 static ssize_t
3076 qlcnic_sysfs_read_esw_config(struct file *file, struct kobject *kobj,
3077 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3078 {
3079 struct device *dev = container_of(kobj, struct device, kobj);
3080 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3081 struct qlcnic_esw_func_cfg esw_cfg[QLCNIC_MAX_PCI_FUNC];
3082 int i;
3083
3084 if (size != sizeof(esw_cfg))
3085 return QL_STATUS_INVALID_PARAM;
3086
3087 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
3088 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3089 continue;
3090
3091 esw_cfg[i].host_vlan_tag = adapter->npars[i].host_vlan_tag;
3092 esw_cfg[i].promisc_mode = adapter->npars[i].promisc_mode;
3093 esw_cfg[i].discard_tagged = adapter->npars[i].discard_tagged;
3094 esw_cfg[i].vlan_id = adapter->npars[i].vlan_id;
3095 esw_cfg[i].mac_learning = adapter->npars[i].mac_learning;
3096 }
3097 memcpy(buf, &esw_cfg, size);
3098
3099 return size;
3100 }
3101
3102 int
3103 validate_npar_config(struct qlcnic_adapter *adapter,
3104 struct qlcnic_npar_func_cfg *np_cfg, int count)
3105 {
3106 u8 pci_func, i;
3107
3108 for (i = 0; i < count; i++) {
3109 pci_func = np_cfg[i].pci_func;
3110 if (pci_func >= QLCNIC_MAX_PCI_FUNC)
3111 return QL_STATUS_INVALID_PARAM;
3112
3113 if (adapter->npars[pci_func].type != QLCNIC_TYPE_NIC)
3114 return QL_STATUS_INVALID_PARAM;
3115
3116 if (!IS_VALID_BW(np_cfg[i].min_bw)
3117 || !IS_VALID_BW(np_cfg[i].max_bw)
3118 || !IS_VALID_RX_QUEUES(np_cfg[i].max_rx_queues)
3119 || !IS_VALID_TX_QUEUES(np_cfg[i].max_tx_queues))
3120 return QL_STATUS_INVALID_PARAM;
3121 }
3122 return 0;
3123 }
3124
3125 static ssize_t
3126 qlcnic_sysfs_write_npar_config(struct file *file, struct kobject *kobj,
3127 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3128 {
3129 struct device *dev = container_of(kobj, struct device, kobj);
3130 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3131 struct qlcnic_info nic_info;
3132 struct qlcnic_npar_func_cfg *np_cfg;
3133 int i, count, rem, ret;
3134 u8 pci_func;
3135
3136 count = size / sizeof(struct qlcnic_npar_func_cfg);
3137 rem = size % sizeof(struct qlcnic_npar_func_cfg);
3138 if (rem)
3139 return QL_STATUS_INVALID_PARAM;
3140
3141 np_cfg = (struct qlcnic_npar_func_cfg *) buf;
3142 ret = validate_npar_config(adapter, np_cfg, count);
3143 if (ret)
3144 return ret;
3145
3146 for (i = 0; i < count ; i++) {
3147 pci_func = np_cfg[i].pci_func;
3148 ret = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
3149 if (ret)
3150 return ret;
3151 nic_info.pci_func = pci_func;
3152 nic_info.min_tx_bw = np_cfg[i].min_bw;
3153 nic_info.max_tx_bw = np_cfg[i].max_bw;
3154 ret = qlcnic_set_nic_info(adapter, &nic_info);
3155 if (ret)
3156 return ret;
3157 }
3158
3159 return size;
3160
3161 }
3162 static ssize_t
3163 qlcnic_sysfs_read_npar_config(struct file *file, struct kobject *kobj,
3164 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3165 {
3166 struct device *dev = container_of(kobj, struct device, kobj);
3167 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3168 struct qlcnic_info nic_info;
3169 struct qlcnic_npar_func_cfg np_cfg[QLCNIC_MAX_PCI_FUNC];
3170 int i, ret;
3171
3172 if (size != sizeof(np_cfg))
3173 return QL_STATUS_INVALID_PARAM;
3174
3175 for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3176 if (adapter->npars[i].type != QLCNIC_TYPE_NIC)
3177 continue;
3178 ret = qlcnic_get_nic_info(adapter, &nic_info, i);
3179 if (ret)
3180 return ret;
3181
3182 np_cfg[i].pci_func = i;
3183 np_cfg[i].op_mode = nic_info.op_mode;
3184 np_cfg[i].port_num = nic_info.phys_port;
3185 np_cfg[i].fw_capab = nic_info.capabilities;
3186 np_cfg[i].min_bw = nic_info.min_tx_bw ;
3187 np_cfg[i].max_bw = nic_info.max_tx_bw;
3188 np_cfg[i].max_tx_queues = nic_info.max_tx_ques;
3189 np_cfg[i].max_rx_queues = nic_info.max_rx_ques;
3190 }
3191 memcpy(buf, &np_cfg, size);
3192 return size;
3193 }
3194
3195 static ssize_t
3196 qlcnic_sysfs_read_pci_config(struct file *file, struct kobject *kobj,
3197 struct bin_attribute *attr, char *buf, loff_t offset, size_t size)
3198 {
3199 struct device *dev = container_of(kobj, struct device, kobj);
3200 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
3201 struct qlcnic_pci_func_cfg pci_cfg[QLCNIC_MAX_PCI_FUNC];
3202 struct qlcnic_pci_info pci_info[QLCNIC_MAX_PCI_FUNC];
3203 int i, ret;
3204
3205 if (size != sizeof(pci_cfg))
3206 return QL_STATUS_INVALID_PARAM;
3207
3208 ret = qlcnic_get_pci_info(adapter, pci_info);
3209 if (ret)
3210 return ret;
3211
3212 for (i = 0; i < QLCNIC_MAX_PCI_FUNC ; i++) {
3213 pci_cfg[i].pci_func = pci_info[i].id;
3214 pci_cfg[i].func_type = pci_info[i].type;
3215 pci_cfg[i].port_num = pci_info[i].default_port;
3216 pci_cfg[i].min_bw = pci_info[i].tx_min_bw;
3217 pci_cfg[i].max_bw = pci_info[i].tx_max_bw;
3218 memcpy(&pci_cfg[i].def_mac_addr, &pci_info[i].mac, ETH_ALEN);
3219 }
3220 memcpy(buf, &pci_cfg, size);
3221 return size;
3222
3223 }
3224 static struct bin_attribute bin_attr_npar_config = {
3225 .attr = {.name = "npar_config", .mode = (S_IRUGO | S_IWUSR)},
3226 .size = 0,
3227 .read = qlcnic_sysfs_read_npar_config,
3228 .write = qlcnic_sysfs_write_npar_config,
3229 };
3230
3231 static struct bin_attribute bin_attr_pci_config = {
3232 .attr = {.name = "pci_config", .mode = (S_IRUGO | S_IWUSR)},
3233 .size = 0,
3234 .read = qlcnic_sysfs_read_pci_config,
3235 .write = NULL,
3236 };
3237
3238 static struct bin_attribute bin_attr_esw_config = {
3239 .attr = {.name = "esw_config", .mode = (S_IRUGO | S_IWUSR)},
3240 .size = 0,
3241 .read = qlcnic_sysfs_read_esw_config,
3242 .write = qlcnic_sysfs_write_esw_config,
3243 };
3244
3245 static struct bin_attribute bin_attr_pm_config = {
3246 .attr = {.name = "pm_config", .mode = (S_IRUGO | S_IWUSR)},
3247 .size = 0,
3248 .read = qlcnic_sysfs_read_pm_config,
3249 .write = qlcnic_sysfs_write_pm_config,
3250 };
3251
3252 static void
3253 qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
3254 {
3255 struct device *dev = &adapter->pdev->dev;
3256
3257 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3258 if (device_create_file(dev, &dev_attr_bridged_mode))
3259 dev_warn(dev,
3260 "failed to create bridged_mode sysfs entry\n");
3261 }
3262
3263 static void
3264 qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
3265 {
3266 struct device *dev = &adapter->pdev->dev;
3267
3268 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
3269 device_remove_file(dev, &dev_attr_bridged_mode);
3270 }
3271
3272 static void
3273 qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
3274 {
3275 struct device *dev = &adapter->pdev->dev;
3276
3277 if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
3278 return;
3279 if (device_create_file(dev, &dev_attr_diag_mode))
3280 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3281 if (device_create_bin_file(dev, &bin_attr_crb))
3282 dev_info(dev, "failed to create crb sysfs entry\n");
3283 if (device_create_bin_file(dev, &bin_attr_mem))
3284 dev_info(dev, "failed to create mem sysfs entry\n");
3285 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
3286 adapter->op_mode != QLCNIC_MGMT_FUNC)
3287 return;
3288 if (device_create_bin_file(dev, &bin_attr_pci_config))
3289 dev_info(dev, "failed to create pci config sysfs entry");
3290 if (device_create_bin_file(dev, &bin_attr_npar_config))
3291 dev_info(dev, "failed to create npar config sysfs entry");
3292 if (device_create_bin_file(dev, &bin_attr_esw_config))
3293 dev_info(dev, "failed to create esw config sysfs entry");
3294 if (device_create_bin_file(dev, &bin_attr_pm_config))
3295 dev_info(dev, "failed to create pm config sysfs entry");
3296
3297 }
3298
3299 static void
3300 qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
3301 {
3302 struct device *dev = &adapter->pdev->dev;
3303
3304 if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC)
3305 return;
3306 device_remove_file(dev, &dev_attr_diag_mode);
3307 device_remove_bin_file(dev, &bin_attr_crb);
3308 device_remove_bin_file(dev, &bin_attr_mem);
3309 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
3310 adapter->op_mode != QLCNIC_MGMT_FUNC)
3311 return;
3312 device_remove_bin_file(dev, &bin_attr_pci_config);
3313 device_remove_bin_file(dev, &bin_attr_npar_config);
3314 device_remove_bin_file(dev, &bin_attr_esw_config);
3315 device_remove_bin_file(dev, &bin_attr_pm_config);
3316 }
3317
3318 #ifdef CONFIG_INET
3319
3320 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3321
3322 static void
3323 qlcnic_config_indev_addr(struct net_device *dev, unsigned long event)
3324 {
3325 struct in_device *indev;
3326 struct qlcnic_adapter *adapter = netdev_priv(dev);
3327
3328 indev = in_dev_get(dev);
3329 if (!indev)
3330 return;
3331
3332 for_ifa(indev) {
3333 switch (event) {
3334 case NETDEV_UP:
3335 qlcnic_config_ipaddr(adapter,
3336 ifa->ifa_address, QLCNIC_IP_UP);
3337 break;
3338 case NETDEV_DOWN:
3339 qlcnic_config_ipaddr(adapter,
3340 ifa->ifa_address, QLCNIC_IP_DOWN);
3341 break;
3342 default:
3343 break;
3344 }
3345 } endfor_ifa(indev);
3346
3347 in_dev_put(indev);
3348 }
3349
3350 static int qlcnic_netdev_event(struct notifier_block *this,
3351 unsigned long event, void *ptr)
3352 {
3353 struct qlcnic_adapter *adapter;
3354 struct net_device *dev = (struct net_device *)ptr;
3355
3356 recheck:
3357 if (dev == NULL)
3358 goto done;
3359
3360 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3361 dev = vlan_dev_real_dev(dev);
3362 goto recheck;
3363 }
3364
3365 if (!is_qlcnic_netdev(dev))
3366 goto done;
3367
3368 adapter = netdev_priv(dev);
3369
3370 if (!adapter)
3371 goto done;
3372
3373 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3374 goto done;
3375
3376 qlcnic_config_indev_addr(dev, event);
3377 done:
3378 return NOTIFY_DONE;
3379 }
3380
3381 static int
3382 qlcnic_inetaddr_event(struct notifier_block *this,
3383 unsigned long event, void *ptr)
3384 {
3385 struct qlcnic_adapter *adapter;
3386 struct net_device *dev;
3387
3388 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3389
3390 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3391
3392 recheck:
3393 if (dev == NULL || !netif_running(dev))
3394 goto done;
3395
3396 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3397 dev = vlan_dev_real_dev(dev);
3398 goto recheck;
3399 }
3400
3401 if (!is_qlcnic_netdev(dev))
3402 goto done;
3403
3404 adapter = netdev_priv(dev);
3405
3406 if (!adapter)
3407 goto done;
3408
3409 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3410 goto done;
3411
3412 switch (event) {
3413 case NETDEV_UP:
3414 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3415 break;
3416 case NETDEV_DOWN:
3417 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3418 break;
3419 default:
3420 break;
3421 }
3422
3423 done:
3424 return NOTIFY_DONE;
3425 }
3426
3427 static struct notifier_block qlcnic_netdev_cb = {
3428 .notifier_call = qlcnic_netdev_event,
3429 };
3430
3431 static struct notifier_block qlcnic_inetaddr_cb = {
3432 .notifier_call = qlcnic_inetaddr_event,
3433 };
3434 #else
3435 static void
3436 qlcnic_config_indev_addr(struct net_device *dev, unsigned long event)
3437 { }
3438 #endif
3439
3440 static struct pci_driver qlcnic_driver = {
3441 .name = qlcnic_driver_name,
3442 .id_table = qlcnic_pci_tbl,
3443 .probe = qlcnic_probe,
3444 .remove = __devexit_p(qlcnic_remove),
3445 #ifdef CONFIG_PM
3446 .suspend = qlcnic_suspend,
3447 .resume = qlcnic_resume,
3448 #endif
3449 .shutdown = qlcnic_shutdown
3450 };
3451
3452 static int __init qlcnic_init_module(void)
3453 {
3454 int ret;
3455
3456 printk(KERN_INFO "%s\n", qlcnic_driver_string);
3457
3458 #ifdef CONFIG_INET
3459 register_netdevice_notifier(&qlcnic_netdev_cb);
3460 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3461 #endif
3462
3463 ret = pci_register_driver(&qlcnic_driver);
3464 if (ret) {
3465 #ifdef CONFIG_INET
3466 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3467 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3468 #endif
3469 }
3470
3471 return ret;
3472 }
3473
3474 module_init(qlcnic_init_module);
3475
3476 static void __exit qlcnic_exit_module(void)
3477 {
3478
3479 pci_unregister_driver(&qlcnic_driver);
3480
3481 #ifdef CONFIG_INET
3482 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3483 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3484 #endif
3485 }
3486
3487 module_exit(qlcnic_exit_module);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree