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qlcnic: make pci_error_handlers const
[deliverable/linux.git] / drivers / net / ethernet / qlogic / qlcnic / qlcnic_main.c
1 /*
2 * QLogic qlcnic NIC Driver
3 * Copyright (c) 2009-2010 QLogic Corporation
4 *
5 * See LICENSE.qlcnic for copyright and licensing details.
6 */
7
8 #include <linux/vmalloc.h>
9 #include <linux/interrupt.h>
10
11 #include "qlcnic.h"
12 #include "qlcnic_hw.h"
13
14 #include <linux/swab.h>
15 #include <linux/dma-mapping.h>
16 #include <linux/if_vlan.h>
17 #include <net/ip.h>
18 #include <linux/ipv6.h>
19 #include <linux/inetdevice.h>
20 #include <linux/aer.h>
21 #include <linux/log2.h>
22 #include <linux/pci.h>
23
24 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
25 MODULE_LICENSE("GPL");
26 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
27 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
28
29 char qlcnic_driver_name[] = "qlcnic";
30 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
31 "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
32
33 static int qlcnic_mac_learn;
34 module_param(qlcnic_mac_learn, int, 0444);
35 MODULE_PARM_DESC(qlcnic_mac_learn,
36 "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
37
38 int qlcnic_use_msi = 1;
39 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
40 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
41
42 int qlcnic_use_msi_x = 1;
43 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
44 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
45
46 int qlcnic_auto_fw_reset = 1;
47 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
48 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
49
50 int qlcnic_load_fw_file;
51 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file");
52 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
53
54 int qlcnic_config_npars;
55 module_param(qlcnic_config_npars, int, 0444);
56 MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
57
58 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
59 static void qlcnic_remove(struct pci_dev *pdev);
60 static int qlcnic_open(struct net_device *netdev);
61 static int qlcnic_close(struct net_device *netdev);
62 static void qlcnic_tx_timeout(struct net_device *netdev);
63 static void qlcnic_attach_work(struct work_struct *work);
64 static void qlcnic_fwinit_work(struct work_struct *work);
65 static void qlcnic_fw_poll_work(struct work_struct *work);
66 #ifdef CONFIG_NET_POLL_CONTROLLER
67 static void qlcnic_poll_controller(struct net_device *netdev);
68 #endif
69
70 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
71 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
72 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
73
74 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
75 static irqreturn_t qlcnic_intr(int irq, void *data);
76 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
77 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
78 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
79
80 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
81 static int qlcnic_start_firmware(struct qlcnic_adapter *);
82
83 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
84 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
85 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
86 static void qlcnic_set_netdev_features(struct qlcnic_adapter *,
87 struct qlcnic_esw_func_cfg *);
88 static int qlcnic_vlan_rx_add(struct net_device *, u16);
89 static int qlcnic_vlan_rx_del(struct net_device *, u16);
90
91 #define QLCNIC_IS_TSO_CAPABLE(adapter) \
92 ((adapter)->ahw->capabilities & QLCNIC_FW_CAPABILITY_TSO)
93
94 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
95 {
96 struct qlcnic_hardware_context *ahw = adapter->ahw;
97
98 if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
99 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
100 else
101 return 1;
102 }
103
104 /* PCI Device ID Table */
105 #define ENTRY(device) \
106 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
107 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
108
109 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
110 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
111 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
112 {0,}
113 };
114
115 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
116
117
118 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
119 {
120 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
121 }
122
123 static const u32 msi_tgt_status[8] = {
124 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
125 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
126 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
127 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
128 };
129
130 static const u32 qlcnic_reg_tbl[] = {
131 0x1B20A8, /* PEG_HALT_STAT1 */
132 0x1B20AC, /* PEG_HALT_STAT2 */
133 0x1B20B0, /* FW_HEARTBEAT */
134 0x1B2100, /* LOCK ID */
135 0x1B2128, /* FW_CAPABILITIES */
136 0x1B2138, /* drv active */
137 0x1B2140, /* dev state */
138 0x1B2144, /* drv state */
139 0x1B2148, /* drv scratch */
140 0x1B214C, /* dev partition info */
141 0x1B2174, /* drv idc ver */
142 0x1B2150, /* fw version major */
143 0x1B2154, /* fw version minor */
144 0x1B2158, /* fw version sub */
145 0x1B219C, /* npar state */
146 0x1B21FC, /* FW_IMG_VALID */
147 0x1B2250, /* CMD_PEG_STATE */
148 0x1B233C, /* RCV_PEG_STATE */
149 0x1B23B4, /* ASIC TEMP */
150 0x1B216C, /* FW api */
151 0x1B2170, /* drv op mode */
152 0x13C010, /* flash lock */
153 0x13C014, /* flash unlock */
154 };
155
156 static const struct qlcnic_board_info qlcnic_boards[] = {
157 {0x1077, 0x8020, 0x1077, 0x203,
158 "8200 Series Single Port 10GbE Converged Network Adapter"
159 "(TCP/IP Networking)"},
160 {0x1077, 0x8020, 0x1077, 0x207,
161 "8200 Series Dual Port 10GbE Converged Network Adapter"
162 "(TCP/IP Networking)"},
163 {0x1077, 0x8020, 0x1077, 0x20b,
164 "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter"},
165 {0x1077, 0x8020, 0x1077, 0x20c,
166 "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter"},
167 {0x1077, 0x8020, 0x1077, 0x20f,
168 "3200 Series Single Port 10Gb Intelligent Ethernet Adapter"},
169 {0x1077, 0x8020, 0x103c, 0x3733,
170 "NC523SFP 10Gb 2-port Server Adapter"},
171 {0x1077, 0x8020, 0x103c, 0x3346,
172 "CN1000Q Dual Port Converged Network Adapter"},
173 {0x1077, 0x8020, 0x1077, 0x210,
174 "QME8242-k 10GbE Dual Port Mezzanine Card"},
175 {0x1077, 0x8020, 0x0, 0x0, "cLOM8214 1/10GbE Controller"},
176 };
177
178 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
179 #define QLC_MAX_SDS_RINGS 8
180
181 static const
182 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
183
184 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
185 {
186 int size = sizeof(struct qlcnic_host_sds_ring) * count;
187
188 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
189
190 return recv_ctx->sds_rings == NULL;
191 }
192
193 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
194 {
195 if (recv_ctx->sds_rings != NULL)
196 kfree(recv_ctx->sds_rings);
197
198 recv_ctx->sds_rings = NULL;
199 }
200
201 static int
202 qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
203 {
204 u8 mac_addr[ETH_ALEN];
205 struct net_device *netdev = adapter->netdev;
206 struct pci_dev *pdev = adapter->pdev;
207
208 if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
209 return -EIO;
210
211 memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
212 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
213
214 /* set station address */
215
216 if (!is_valid_ether_addr(netdev->dev_addr))
217 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
218 netdev->dev_addr);
219
220 return 0;
221 }
222
223 static int qlcnic_set_mac(struct net_device *netdev, void *p)
224 {
225 struct qlcnic_adapter *adapter = netdev_priv(netdev);
226 struct sockaddr *addr = p;
227
228 if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
229 return -EOPNOTSUPP;
230
231 if (!is_valid_ether_addr(addr->sa_data))
232 return -EINVAL;
233
234 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
235 netif_device_detach(netdev);
236 qlcnic_napi_disable(adapter);
237 }
238
239 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
240 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
241 qlcnic_set_multi(adapter->netdev);
242
243 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
244 netif_device_attach(netdev);
245 qlcnic_napi_enable(adapter);
246 }
247 return 0;
248 }
249
250 static int qlcnic_fdb_del(struct ndmsg *ndm, struct net_device *netdev,
251 const unsigned char *addr)
252 {
253 struct qlcnic_adapter *adapter = netdev_priv(netdev);
254 int err = -EOPNOTSUPP;
255
256 if (!adapter->fdb_mac_learn) {
257 pr_info("%s: Driver mac learn is enabled, FDB operation not allowed\n",
258 __func__);
259 return err;
260 }
261
262 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
263 if (is_unicast_ether_addr(addr))
264 err = qlcnic_nic_del_mac(adapter, addr);
265 else if (is_multicast_ether_addr(addr))
266 err = dev_mc_del(netdev, addr);
267 else
268 err = -EINVAL;
269 }
270 return err;
271 }
272
273 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
274 struct net_device *netdev,
275 const unsigned char *addr, u16 flags)
276 {
277 struct qlcnic_adapter *adapter = netdev_priv(netdev);
278 int err = 0;
279
280 if (!adapter->fdb_mac_learn) {
281 pr_info("%s: Driver mac learn is enabled, FDB operation not allowed\n",
282 __func__);
283 return -EOPNOTSUPP;
284 }
285
286 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
287 pr_info("%s: FDB e-switch is not enabled\n", __func__);
288 return -EOPNOTSUPP;
289 }
290
291 if (ether_addr_equal(addr, adapter->mac_addr))
292 return err;
293
294 if (is_unicast_ether_addr(addr))
295 err = qlcnic_nic_add_mac(adapter, addr);
296 else if (is_multicast_ether_addr(addr))
297 err = dev_mc_add_excl(netdev, addr);
298 else
299 err = -EINVAL;
300
301 return err;
302 }
303
304 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
305 struct net_device *netdev, int idx)
306 {
307 struct qlcnic_adapter *adapter = netdev_priv(netdev);
308
309 if (!adapter->fdb_mac_learn) {
310 pr_info("%s: Driver mac learn is enabled, FDB operation not allowed\n",
311 __func__);
312 return -EOPNOTSUPP;
313 }
314
315 if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
316 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
317
318 return idx;
319 }
320
321 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
322 {
323 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
324 usleep_range(10000, 11000);
325
326 cancel_delayed_work_sync(&adapter->fw_work);
327 }
328
329 static const struct net_device_ops qlcnic_netdev_ops = {
330 .ndo_open = qlcnic_open,
331 .ndo_stop = qlcnic_close,
332 .ndo_start_xmit = qlcnic_xmit_frame,
333 .ndo_get_stats = qlcnic_get_stats,
334 .ndo_validate_addr = eth_validate_addr,
335 .ndo_set_rx_mode = qlcnic_set_multi,
336 .ndo_set_mac_address = qlcnic_set_mac,
337 .ndo_change_mtu = qlcnic_change_mtu,
338 .ndo_fix_features = qlcnic_fix_features,
339 .ndo_set_features = qlcnic_set_features,
340 .ndo_tx_timeout = qlcnic_tx_timeout,
341 .ndo_vlan_rx_add_vid = qlcnic_vlan_rx_add,
342 .ndo_vlan_rx_kill_vid = qlcnic_vlan_rx_del,
343 .ndo_fdb_add = qlcnic_fdb_add,
344 .ndo_fdb_del = qlcnic_fdb_del,
345 .ndo_fdb_dump = qlcnic_fdb_dump,
346 #ifdef CONFIG_NET_POLL_CONTROLLER
347 .ndo_poll_controller = qlcnic_poll_controller,
348 #endif
349 };
350
351 static const struct net_device_ops qlcnic_netdev_failed_ops = {
352 .ndo_open = qlcnic_open,
353 };
354
355 static struct qlcnic_nic_template qlcnic_ops = {
356 .config_bridged_mode = qlcnic_config_bridged_mode,
357 .config_led = qlcnic_82xx_config_led,
358 .start_firmware = qlcnic_82xx_start_firmware,
359 .request_reset = qlcnic_82xx_dev_request_reset,
360 .cancel_idc_work = qlcnic_82xx_cancel_idc_work,
361 .napi_add = qlcnic_82xx_napi_add,
362 .napi_del = qlcnic_82xx_napi_del,
363 .config_ipaddr = qlcnic_82xx_config_ipaddr,
364 .clear_legacy_intr = qlcnic_82xx_clear_legacy_intr,
365 };
366
367 struct qlcnic_nic_template qlcnic_vf_ops = {
368 .config_bridged_mode = qlcnicvf_config_bridged_mode,
369 .config_led = qlcnicvf_config_led,
370 .start_firmware = qlcnicvf_start_firmware
371 };
372
373 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
374 .read_crb = qlcnic_82xx_read_crb,
375 .write_crb = qlcnic_82xx_write_crb,
376 .read_reg = qlcnic_82xx_hw_read_wx_2M,
377 .write_reg = qlcnic_82xx_hw_write_wx_2M,
378 .get_mac_address = qlcnic_82xx_get_mac_address,
379 .setup_intr = qlcnic_82xx_setup_intr,
380 .alloc_mbx_args = qlcnic_82xx_alloc_mbx_args,
381 .mbx_cmd = qlcnic_82xx_issue_cmd,
382 .get_func_no = qlcnic_82xx_get_func_no,
383 .api_lock = qlcnic_82xx_api_lock,
384 .api_unlock = qlcnic_82xx_api_unlock,
385 .add_sysfs = qlcnic_82xx_add_sysfs,
386 .remove_sysfs = qlcnic_82xx_remove_sysfs,
387 .process_lb_rcv_ring_diag = qlcnic_82xx_process_rcv_ring_diag,
388 .create_rx_ctx = qlcnic_82xx_fw_cmd_create_rx_ctx,
389 .create_tx_ctx = qlcnic_82xx_fw_cmd_create_tx_ctx,
390 .setup_link_event = qlcnic_82xx_linkevent_request,
391 .get_nic_info = qlcnic_82xx_get_nic_info,
392 .get_pci_info = qlcnic_82xx_get_pci_info,
393 .set_nic_info = qlcnic_82xx_set_nic_info,
394 .change_macvlan = qlcnic_82xx_sre_macaddr_change,
395 .napi_enable = qlcnic_82xx_napi_enable,
396 .napi_disable = qlcnic_82xx_napi_disable,
397 .config_intr_coal = qlcnic_82xx_config_intr_coalesce,
398 .config_rss = qlcnic_82xx_config_rss,
399 .config_hw_lro = qlcnic_82xx_config_hw_lro,
400 .config_loopback = qlcnic_82xx_set_lb_mode,
401 .clear_loopback = qlcnic_82xx_clear_lb_mode,
402 .config_promisc_mode = qlcnic_82xx_nic_set_promisc,
403 .change_l2_filter = qlcnic_82xx_change_filter,
404 .get_board_info = qlcnic_82xx_get_board_info,
405 };
406
407 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
408 {
409 struct pci_dev *pdev = adapter->pdev;
410 int err = -1, i;
411 int max_tx_rings;
412
413 if (!adapter->msix_entries) {
414 adapter->msix_entries = kcalloc(num_msix,
415 sizeof(struct msix_entry),
416 GFP_KERNEL);
417 if (!adapter->msix_entries) {
418 dev_err(&pdev->dev, "failed allocating msix_entries\n");
419 return -ENOMEM;
420 }
421 }
422
423 adapter->max_sds_rings = 1;
424 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
425
426 if (adapter->ahw->msix_supported) {
427 enable_msix:
428 for (i = 0; i < num_msix; i++)
429 adapter->msix_entries[i].entry = i;
430 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
431 if (err == 0) {
432 adapter->flags |= QLCNIC_MSIX_ENABLED;
433 if (qlcnic_83xx_check(adapter)) {
434 adapter->ahw->num_msix = num_msix;
435 /* subtract mail box and tx ring vectors */
436 max_tx_rings = adapter->max_drv_tx_rings;
437 adapter->max_sds_rings = num_msix -
438 max_tx_rings - 1;
439 } else {
440 adapter->max_sds_rings = num_msix;
441 }
442 dev_info(&pdev->dev, "using msi-x interrupts\n");
443 return err;
444 } else if (err > 0) {
445 dev_info(&pdev->dev,
446 "Unable to allocate %d MSI-X interrupt vectors\n",
447 num_msix);
448 if (qlcnic_83xx_check(adapter)) {
449 if (err < QLC_83XX_MINIMUM_VECTOR)
450 return err;
451 err -= (adapter->max_drv_tx_rings + 1);
452 num_msix = rounddown_pow_of_two(err);
453 num_msix += (adapter->max_drv_tx_rings + 1);
454 } else {
455 num_msix = rounddown_pow_of_two(err);
456 }
457
458 if (num_msix) {
459 dev_info(&pdev->dev,
460 "Trying %d MSI-X interrupt vectors\n",
461 num_msix);
462 goto enable_msix;
463 }
464 } else {
465 dev_info(&pdev->dev, "Failed to get %d vectors\n",
466 num_msix);
467 }
468 }
469
470 return err;
471 }
472
473 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
474 {
475 int err = 0;
476 u32 offset, mask_reg;
477 const struct qlcnic_legacy_intr_set *legacy_intrp;
478 struct qlcnic_hardware_context *ahw = adapter->ahw;
479 struct pci_dev *pdev = adapter->pdev;
480
481 if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
482 adapter->flags |= QLCNIC_MSI_ENABLED;
483 offset = msi_tgt_status[adapter->ahw->pci_func];
484 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
485 offset);
486 dev_info(&pdev->dev, "using msi interrupts\n");
487 adapter->msix_entries[0].vector = pdev->irq;
488 return err;
489 }
490 if (qlcnic_use_msi || qlcnic_use_msi_x)
491 return -EOPNOTSUPP;
492
493 legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
494 adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
495 offset = legacy_intrp->tgt_status_reg;
496 adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
497 mask_reg = legacy_intrp->tgt_mask_reg;
498 adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
499 adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
500 adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
501 dev_info(&pdev->dev, "using legacy interrupts\n");
502 adapter->msix_entries[0].vector = pdev->irq;
503 return err;
504 }
505
506 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr)
507 {
508 int num_msix, err = 0;
509
510 if (!num_intr)
511 num_intr = QLCNIC_DEF_NUM_STS_DESC_RINGS;
512
513 if (adapter->ahw->msix_supported)
514 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
515 num_intr));
516 else
517 num_msix = 1;
518
519 err = qlcnic_enable_msix(adapter, num_msix);
520 if (err == -ENOMEM || !err)
521 return err;
522
523 err = qlcnic_enable_msi_legacy(adapter);
524 if (!err)
525 return err;
526
527 return -EIO;
528 }
529
530 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
531 {
532 if (adapter->flags & QLCNIC_MSIX_ENABLED)
533 pci_disable_msix(adapter->pdev);
534 if (adapter->flags & QLCNIC_MSI_ENABLED)
535 pci_disable_msi(adapter->pdev);
536
537 kfree(adapter->msix_entries);
538 adapter->msix_entries = NULL;
539
540 if (adapter->ahw->intr_tbl) {
541 vfree(adapter->ahw->intr_tbl);
542 adapter->ahw->intr_tbl = NULL;
543 }
544 }
545
546 static void
547 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
548 {
549 if (adapter->ahw->pci_base0 != NULL)
550 iounmap(adapter->ahw->pci_base0);
551 }
552
553 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
554 {
555 struct qlcnic_pci_info *pci_info;
556 int ret;
557
558 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
559 switch (adapter->ahw->port_type) {
560 case QLCNIC_GBE:
561 adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_GBE_PORTS;
562 break;
563 case QLCNIC_XGBE:
564 adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_XG_PORTS;
565 break;
566 }
567 return 0;
568 }
569
570 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
571 return 0;
572
573 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
574 if (!pci_info)
575 return -ENOMEM;
576
577 ret = qlcnic_get_pci_info(adapter, pci_info);
578 kfree(pci_info);
579 return ret;
580 }
581
582 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
583 {
584 struct qlcnic_pci_info *pci_info;
585 int i, ret = 0, j = 0;
586 u16 act_pci_func;
587 u8 pfn;
588
589 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
590 if (!pci_info)
591 return -ENOMEM;
592
593 ret = qlcnic_get_pci_info(adapter, pci_info);
594 if (ret)
595 goto err_pci_info;
596
597 act_pci_func = adapter->ahw->act_pci_func;
598
599 adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
600 act_pci_func, GFP_KERNEL);
601 if (!adapter->npars) {
602 ret = -ENOMEM;
603 goto err_pci_info;
604 }
605
606 adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
607 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
608 if (!adapter->eswitch) {
609 ret = -ENOMEM;
610 goto err_npars;
611 }
612
613 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
614 pfn = pci_info[i].id;
615
616 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
617 ret = QL_STATUS_INVALID_PARAM;
618 goto err_eswitch;
619 }
620
621 if (!pci_info[i].active ||
622 (pci_info[i].type != QLCNIC_TYPE_NIC))
623 continue;
624
625 adapter->npars[j].pci_func = pfn;
626 adapter->npars[j].active = (u8)pci_info[i].active;
627 adapter->npars[j].type = (u8)pci_info[i].type;
628 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
629 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
630 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
631 j++;
632 }
633
634 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++) {
635 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
636 if (qlcnic_83xx_check(adapter))
637 qlcnic_enable_eswitch(adapter, i, 1);
638 }
639
640 kfree(pci_info);
641 return 0;
642
643 err_eswitch:
644 kfree(adapter->eswitch);
645 adapter->eswitch = NULL;
646 err_npars:
647 kfree(adapter->npars);
648 adapter->npars = NULL;
649 err_pci_info:
650 kfree(pci_info);
651
652 return ret;
653 }
654
655 static int
656 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
657 {
658 u8 id;
659 int i, ret = 1;
660 u32 data = QLCNIC_MGMT_FUNC;
661 struct qlcnic_hardware_context *ahw = adapter->ahw;
662
663 ret = qlcnic_api_lock(adapter);
664 if (ret)
665 goto err_lock;
666
667 if (qlcnic_config_npars) {
668 for (i = 0; i < ahw->act_pci_func; i++) {
669 id = adapter->npars[i].pci_func;
670 if (id == ahw->pci_func)
671 continue;
672 data |= (qlcnic_config_npars &
673 QLC_DEV_SET_DRV(0xf, id));
674 }
675 } else {
676 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
677 data = (data & ~QLC_DEV_SET_DRV(0xf, ahw->pci_func)) |
678 (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
679 ahw->pci_func));
680 }
681 QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
682 qlcnic_api_unlock(adapter);
683 err_lock:
684 return ret;
685 }
686
687 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
688 const struct pci_device_id *ent)
689 {
690 u32 op_mode, priv_level;
691
692 /* Determine FW API version */
693 adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
694 QLCNIC_FW_API);
695
696 /* Find PCI function number */
697 qlcnic_get_func_no(adapter);
698
699 /* Determine function privilege level */
700 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
701 if (op_mode == QLC_DEV_DRV_DEFAULT)
702 priv_level = QLCNIC_MGMT_FUNC;
703 else
704 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
705
706 if (priv_level == QLCNIC_NON_PRIV_FUNC) {
707 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
708 dev_info(&adapter->pdev->dev,
709 "HAL Version: %d Non Privileged function\n",
710 adapter->ahw->fw_hal_version);
711 adapter->nic_ops = &qlcnic_vf_ops;
712 } else
713 adapter->nic_ops = &qlcnic_ops;
714 }
715
716 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
717 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
718 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
719 {
720 switch (dev_id) {
721 case PCI_DEVICE_ID_QLOGIC_QLE824X:
722 *bar = QLCNIC_82XX_BAR0_LENGTH;
723 break;
724 case PCI_DEVICE_ID_QLOGIC_QLE834X:
725 *bar = QLCNIC_83XX_BAR0_LENGTH;
726 break;
727 default:
728 *bar = 0;
729 }
730 }
731
732 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
733 struct qlcnic_hardware_context *ahw)
734 {
735 u32 offset;
736 void __iomem *mem_ptr0 = NULL;
737 unsigned long mem_len, pci_len0 = 0, bar0_len;
738
739 /* remap phys address */
740 mem_len = pci_resource_len(pdev, 0);
741
742 qlcnic_get_bar_length(pdev->device, &bar0_len);
743 if (mem_len >= bar0_len) {
744
745 mem_ptr0 = pci_ioremap_bar(pdev, 0);
746 if (mem_ptr0 == NULL) {
747 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
748 return -EIO;
749 }
750 pci_len0 = mem_len;
751 } else {
752 return -EIO;
753 }
754
755 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
756
757 ahw->pci_base0 = mem_ptr0;
758 ahw->pci_len0 = pci_len0;
759 offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
760 qlcnic_get_ioaddr(ahw, offset);
761
762 return 0;
763 }
764
765 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
766 {
767 struct pci_dev *pdev = adapter->pdev;
768 int i, found = 0;
769
770 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
771 if (qlcnic_boards[i].vendor == pdev->vendor &&
772 qlcnic_boards[i].device == pdev->device &&
773 qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
774 qlcnic_boards[i].sub_device == pdev->subsystem_device) {
775 sprintf(name, "%pM: %s" ,
776 adapter->mac_addr,
777 qlcnic_boards[i].short_name);
778 found = 1;
779 break;
780 }
781
782 }
783
784 if (!found)
785 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
786 }
787
788 static void
789 qlcnic_check_options(struct qlcnic_adapter *adapter)
790 {
791 int err;
792 u32 fw_major, fw_minor, fw_build, prev_fw_version;
793 struct pci_dev *pdev = adapter->pdev;
794 struct qlcnic_hardware_context *ahw = adapter->ahw;
795 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
796
797 prev_fw_version = adapter->fw_version;
798
799 fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
800 fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
801 fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
802
803 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
804
805 err = qlcnic_get_board_info(adapter);
806 if (err) {
807 dev_err(&pdev->dev, "Error getting board config info.\n");
808 return;
809 }
810 if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
811 if (fw_dump->tmpl_hdr == NULL ||
812 adapter->fw_version > prev_fw_version) {
813 if (fw_dump->tmpl_hdr)
814 vfree(fw_dump->tmpl_hdr);
815 if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
816 dev_info(&pdev->dev,
817 "Supports FW dump capability\n");
818 }
819 }
820
821 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
822 QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
823
824 if (adapter->ahw->port_type == QLCNIC_XGBE) {
825 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
826 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
827 adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
828 } else {
829 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
830 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
831 }
832
833 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
834 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
835
836 } else if (adapter->ahw->port_type == QLCNIC_GBE) {
837 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
838 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
839 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
840 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
841 }
842
843 adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
844
845 adapter->num_txd = MAX_CMD_DESCRIPTORS;
846
847 adapter->max_rds_rings = MAX_RDS_RINGS;
848 }
849
850 static int
851 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
852 {
853 int err;
854 struct qlcnic_info nic_info;
855
856 memset(&nic_info, 0, sizeof(struct qlcnic_info));
857 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
858 if (err)
859 return err;
860
861 adapter->ahw->physical_port = (u8)nic_info.phys_port;
862 adapter->ahw->switch_mode = nic_info.switch_mode;
863 adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
864 adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
865 adapter->ahw->capabilities = nic_info.capabilities;
866
867 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
868 u32 temp;
869 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
870 adapter->ahw->capabilities2 = temp;
871 }
872 adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
873 adapter->ahw->max_mtu = nic_info.max_mtu;
874
875 /* Disable NPAR for 83XX */
876 if (qlcnic_83xx_check(adapter))
877 return err;
878
879 if (adapter->ahw->capabilities & BIT_6)
880 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
881 else
882 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
883
884 return err;
885 }
886
887 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
888 struct qlcnic_esw_func_cfg *esw_cfg)
889 {
890 if (esw_cfg->discard_tagged)
891 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
892 else
893 adapter->flags |= QLCNIC_TAGGING_ENABLED;
894
895 if (esw_cfg->vlan_id)
896 adapter->pvid = esw_cfg->vlan_id;
897 else
898 adapter->pvid = 0;
899 }
900
901 static int
902 qlcnic_vlan_rx_add(struct net_device *netdev, u16 vid)
903 {
904 struct qlcnic_adapter *adapter = netdev_priv(netdev);
905 set_bit(vid, adapter->vlans);
906 return 0;
907 }
908
909 static int
910 qlcnic_vlan_rx_del(struct net_device *netdev, u16 vid)
911 {
912 struct qlcnic_adapter *adapter = netdev_priv(netdev);
913
914 qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
915 clear_bit(vid, adapter->vlans);
916 return 0;
917 }
918
919 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
920 struct qlcnic_esw_func_cfg *esw_cfg)
921 {
922 adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
923 QLCNIC_PROMISC_DISABLED);
924
925 if (esw_cfg->mac_anti_spoof)
926 adapter->flags |= QLCNIC_MACSPOOF;
927
928 if (!esw_cfg->mac_override)
929 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
930
931 if (!esw_cfg->promisc_mode)
932 adapter->flags |= QLCNIC_PROMISC_DISABLED;
933
934 qlcnic_set_netdev_features(adapter, esw_cfg);
935 }
936
937 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
938 {
939 struct qlcnic_esw_func_cfg esw_cfg;
940
941 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
942 return 0;
943
944 esw_cfg.pci_func = adapter->ahw->pci_func;
945 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
946 return -EIO;
947 qlcnic_set_vlan_config(adapter, &esw_cfg);
948 qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
949
950 return 0;
951 }
952
953 static void
954 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
955 struct qlcnic_esw_func_cfg *esw_cfg)
956 {
957 struct net_device *netdev = adapter->netdev;
958 unsigned long features, vlan_features;
959
960 if (qlcnic_83xx_check(adapter))
961 return;
962
963 features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
964 NETIF_F_IPV6_CSUM | NETIF_F_GRO);
965 vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
966 NETIF_F_IPV6_CSUM);
967
968 if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
969 features |= (NETIF_F_TSO | NETIF_F_TSO6);
970 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
971 }
972
973 if (netdev->features & NETIF_F_LRO)
974 features |= NETIF_F_LRO;
975
976 if (esw_cfg->offload_flags & BIT_0) {
977 netdev->features |= features;
978 adapter->rx_csum = 1;
979 if (!(esw_cfg->offload_flags & BIT_1)) {
980 netdev->features &= ~NETIF_F_TSO;
981 features &= ~NETIF_F_TSO;
982 }
983 if (!(esw_cfg->offload_flags & BIT_2)) {
984 netdev->features &= ~NETIF_F_TSO6;
985 features &= ~NETIF_F_TSO6;
986 }
987 } else {
988 netdev->features &= ~features;
989 features &= ~features;
990 adapter->rx_csum = 0;
991 }
992
993 netdev->vlan_features = (features & vlan_features);
994 }
995
996 static int
997 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
998 {
999 u32 op_mode, priv_level;
1000 int err = 0;
1001
1002 err = qlcnic_initialize_nic(adapter);
1003 if (err)
1004 return err;
1005
1006 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1007 return 0;
1008
1009 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1010 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1011
1012 if (op_mode == QLC_DEV_DRV_DEFAULT)
1013 priv_level = QLCNIC_MGMT_FUNC;
1014 else
1015 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1016
1017 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1018 if (priv_level == QLCNIC_MGMT_FUNC) {
1019 adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1020 err = qlcnic_init_pci_info(adapter);
1021 if (err)
1022 return err;
1023 /* Set privilege level for other functions */
1024 qlcnic_set_function_modes(adapter);
1025 dev_info(&adapter->pdev->dev,
1026 "HAL Version: %d, Management function\n",
1027 adapter->ahw->fw_hal_version);
1028 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1029 adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1030 dev_info(&adapter->pdev->dev,
1031 "HAL Version: %d, Privileged function\n",
1032 adapter->ahw->fw_hal_version);
1033 }
1034 }
1035
1036 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1037
1038 return err;
1039 }
1040
1041 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1042 {
1043 struct qlcnic_esw_func_cfg esw_cfg;
1044 struct qlcnic_npar_info *npar;
1045 u8 i;
1046
1047 if (adapter->need_fw_reset)
1048 return 0;
1049
1050 for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1051 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1052 esw_cfg.pci_func = adapter->npars[i].pci_func;
1053 esw_cfg.mac_override = BIT_0;
1054 esw_cfg.promisc_mode = BIT_0;
1055 if (qlcnic_82xx_check(adapter)) {
1056 esw_cfg.offload_flags = BIT_0;
1057 if (QLCNIC_IS_TSO_CAPABLE(adapter))
1058 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1059 }
1060 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1061 return -EIO;
1062 npar = &adapter->npars[i];
1063 npar->pvid = esw_cfg.vlan_id;
1064 npar->mac_override = esw_cfg.mac_override;
1065 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1066 npar->discard_tagged = esw_cfg.discard_tagged;
1067 npar->promisc_mode = esw_cfg.promisc_mode;
1068 npar->offload_flags = esw_cfg.offload_flags;
1069 }
1070
1071 return 0;
1072 }
1073
1074
1075 static int
1076 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1077 struct qlcnic_npar_info *npar, int pci_func)
1078 {
1079 struct qlcnic_esw_func_cfg esw_cfg;
1080 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1081 esw_cfg.pci_func = pci_func;
1082 esw_cfg.vlan_id = npar->pvid;
1083 esw_cfg.mac_override = npar->mac_override;
1084 esw_cfg.discard_tagged = npar->discard_tagged;
1085 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1086 esw_cfg.offload_flags = npar->offload_flags;
1087 esw_cfg.promisc_mode = npar->promisc_mode;
1088 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1089 return -EIO;
1090
1091 esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1092 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1093 return -EIO;
1094
1095 return 0;
1096 }
1097
1098 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1099 {
1100 int i, err;
1101 struct qlcnic_npar_info *npar;
1102 struct qlcnic_info nic_info;
1103 u8 pci_func;
1104
1105 if (qlcnic_82xx_check(adapter))
1106 if (!adapter->need_fw_reset)
1107 return 0;
1108
1109 /* Set the NPAR config data after FW reset */
1110 for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1111 npar = &adapter->npars[i];
1112 pci_func = npar->pci_func;
1113 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1114 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1115 if (err)
1116 return err;
1117 nic_info.min_tx_bw = npar->min_bw;
1118 nic_info.max_tx_bw = npar->max_bw;
1119 err = qlcnic_set_nic_info(adapter, &nic_info);
1120 if (err)
1121 return err;
1122
1123 if (npar->enable_pm) {
1124 err = qlcnic_config_port_mirroring(adapter,
1125 npar->dest_npar, 1,
1126 pci_func);
1127 if (err)
1128 return err;
1129 }
1130 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1131 if (err)
1132 return err;
1133 }
1134 return 0;
1135 }
1136
1137 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1138 {
1139 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1140 u32 npar_state;
1141
1142 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1143 return 0;
1144
1145 npar_state = QLC_SHARED_REG_RD32(adapter,
1146 QLCNIC_CRB_DEV_NPAR_STATE);
1147 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1148 msleep(1000);
1149 npar_state = QLC_SHARED_REG_RD32(adapter,
1150 QLCNIC_CRB_DEV_NPAR_STATE);
1151 }
1152 if (!npar_opt_timeo) {
1153 dev_err(&adapter->pdev->dev,
1154 "Waiting for NPAR state to opertional timeout\n");
1155 return -EIO;
1156 }
1157 return 0;
1158 }
1159
1160 static int
1161 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1162 {
1163 int err;
1164
1165 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1166 adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1167 return 0;
1168
1169 err = qlcnic_set_default_offload_settings(adapter);
1170 if (err)
1171 return err;
1172
1173 err = qlcnic_reset_npar_config(adapter);
1174 if (err)
1175 return err;
1176
1177 qlcnic_dev_set_npar_ready(adapter);
1178
1179 if (qlcnic_83xx_check(adapter))
1180 qlcnic_83xx_register_nic_idc_func(adapter, 1);
1181 return err;
1182 }
1183
1184 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1185 {
1186 int err;
1187
1188 err = qlcnic_can_start_firmware(adapter);
1189 if (err < 0)
1190 return err;
1191 else if (!err)
1192 goto check_fw_status;
1193
1194 if (qlcnic_load_fw_file)
1195 qlcnic_request_firmware(adapter);
1196 else {
1197 err = qlcnic_check_flash_fw_ver(adapter);
1198 if (err)
1199 goto err_out;
1200
1201 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1202 }
1203
1204 err = qlcnic_need_fw_reset(adapter);
1205 if (err == 0)
1206 goto check_fw_status;
1207
1208 err = qlcnic_pinit_from_rom(adapter);
1209 if (err)
1210 goto err_out;
1211
1212 err = qlcnic_load_firmware(adapter);
1213 if (err)
1214 goto err_out;
1215
1216 qlcnic_release_firmware(adapter);
1217 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1218
1219 check_fw_status:
1220 err = qlcnic_check_fw_status(adapter);
1221 if (err)
1222 goto err_out;
1223
1224 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1225 qlcnic_idc_debug_info(adapter, 1);
1226 err = qlcnic_check_eswitch_mode(adapter);
1227 if (err) {
1228 dev_err(&adapter->pdev->dev,
1229 "Memory allocation failed for eswitch\n");
1230 goto err_out;
1231 }
1232 err = qlcnic_set_mgmt_operations(adapter);
1233 if (err)
1234 goto err_out;
1235
1236 qlcnic_check_options(adapter);
1237 adapter->need_fw_reset = 0;
1238
1239 qlcnic_release_firmware(adapter);
1240 return 0;
1241
1242 err_out:
1243 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1244 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1245
1246 qlcnic_release_firmware(adapter);
1247 return err;
1248 }
1249
1250 static int
1251 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1252 {
1253 irq_handler_t handler;
1254 struct qlcnic_host_sds_ring *sds_ring;
1255 struct qlcnic_host_tx_ring *tx_ring;
1256 int err, ring;
1257
1258 unsigned long flags = 0;
1259 struct net_device *netdev = adapter->netdev;
1260 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1261
1262 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1263 if (qlcnic_82xx_check(adapter))
1264 handler = qlcnic_tmp_intr;
1265 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1266 flags |= IRQF_SHARED;
1267
1268 } else {
1269 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1270 handler = qlcnic_msix_intr;
1271 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1272 handler = qlcnic_msi_intr;
1273 else {
1274 flags |= IRQF_SHARED;
1275 handler = qlcnic_intr;
1276 }
1277 }
1278 adapter->irq = netdev->irq;
1279
1280 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1281 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1282 sds_ring = &recv_ctx->sds_rings[ring];
1283 snprintf(sds_ring->name, sizeof(int) + IFNAMSIZ,
1284 "%s[%d]", netdev->name, ring);
1285 err = request_irq(sds_ring->irq, handler, flags,
1286 sds_ring->name, sds_ring);
1287 if (err)
1288 return err;
1289 }
1290 if (qlcnic_83xx_check(adapter) &&
1291 (adapter->flags & QLCNIC_MSIX_ENABLED)) {
1292 handler = qlcnic_msix_tx_intr;
1293 for (ring = 0; ring < adapter->max_drv_tx_rings;
1294 ring++) {
1295 tx_ring = &adapter->tx_ring[ring];
1296 snprintf(tx_ring->name, sizeof(int) + IFNAMSIZ,
1297 "%s[%d]", netdev->name,
1298 adapter->max_sds_rings + ring);
1299 err = request_irq(tx_ring->irq, handler, flags,
1300 tx_ring->name, tx_ring);
1301 if (err)
1302 return err;
1303 }
1304 }
1305 }
1306 return 0;
1307 }
1308
1309 static void
1310 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1311 {
1312 int ring;
1313 struct qlcnic_host_sds_ring *sds_ring;
1314 struct qlcnic_host_tx_ring *tx_ring;
1315
1316 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1317
1318 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1319 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1320 sds_ring = &recv_ctx->sds_rings[ring];
1321 free_irq(sds_ring->irq, sds_ring);
1322 }
1323 if (qlcnic_83xx_check(adapter)) {
1324 for (ring = 0; ring < adapter->max_drv_tx_rings;
1325 ring++) {
1326 tx_ring = &adapter->tx_ring[ring];
1327 if (tx_ring->irq)
1328 free_irq(tx_ring->irq, tx_ring);
1329 }
1330 }
1331 }
1332 }
1333
1334 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1335 {
1336 int ring;
1337 u32 capab2;
1338
1339 struct qlcnic_host_rds_ring *rds_ring;
1340
1341 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1342 return -EIO;
1343
1344 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1345 return 0;
1346 if (qlcnic_set_eswitch_port_config(adapter))
1347 return -EIO;
1348
1349 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1350 capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
1351 if (capab2 & QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1352 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1353 }
1354
1355 if (qlcnic_fw_create_ctx(adapter))
1356 return -EIO;
1357
1358 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1359 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1360 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1361 }
1362
1363 qlcnic_set_multi(netdev);
1364 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1365
1366 adapter->ahw->linkup = 0;
1367
1368 if (adapter->max_sds_rings > 1)
1369 qlcnic_config_rss(adapter, 1);
1370
1371 qlcnic_config_intr_coalesce(adapter);
1372
1373 if (netdev->features & NETIF_F_LRO)
1374 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1375
1376 qlcnic_napi_enable(adapter);
1377
1378 qlcnic_linkevent_request(adapter, 1);
1379
1380 adapter->ahw->reset_context = 0;
1381 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1382 return 0;
1383 }
1384
1385 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1386 {
1387 int err = 0;
1388
1389 rtnl_lock();
1390 if (netif_running(netdev))
1391 err = __qlcnic_up(adapter, netdev);
1392 rtnl_unlock();
1393
1394 return err;
1395 }
1396
1397 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1398 {
1399 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1400 return;
1401
1402 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1403 return;
1404
1405 smp_mb();
1406 spin_lock(&adapter->tx_clean_lock);
1407 netif_carrier_off(netdev);
1408 netif_tx_disable(netdev);
1409
1410 qlcnic_free_mac_list(adapter);
1411
1412 if (adapter->fhash.fnum)
1413 qlcnic_delete_lb_filters(adapter);
1414
1415 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1416
1417 qlcnic_napi_disable(adapter);
1418
1419 qlcnic_fw_destroy_ctx(adapter);
1420 adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1421
1422 qlcnic_reset_rx_buffers_list(adapter);
1423 qlcnic_release_tx_buffers(adapter);
1424 spin_unlock(&adapter->tx_clean_lock);
1425 }
1426
1427 /* Usage: During suspend and firmware recovery module */
1428
1429 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1430 {
1431 rtnl_lock();
1432 if (netif_running(netdev))
1433 __qlcnic_down(adapter, netdev);
1434 rtnl_unlock();
1435
1436 }
1437
1438 int
1439 qlcnic_attach(struct qlcnic_adapter *adapter)
1440 {
1441 struct net_device *netdev = adapter->netdev;
1442 struct pci_dev *pdev = adapter->pdev;
1443 int err;
1444
1445 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1446 return 0;
1447
1448 err = qlcnic_napi_add(adapter, netdev);
1449 if (err)
1450 return err;
1451
1452 err = qlcnic_alloc_sw_resources(adapter);
1453 if (err) {
1454 dev_err(&pdev->dev, "Error in setting sw resources\n");
1455 goto err_out_napi_del;
1456 }
1457
1458 err = qlcnic_alloc_hw_resources(adapter);
1459 if (err) {
1460 dev_err(&pdev->dev, "Error in setting hw resources\n");
1461 goto err_out_free_sw;
1462 }
1463
1464 err = qlcnic_request_irq(adapter);
1465 if (err) {
1466 dev_err(&pdev->dev, "failed to setup interrupt\n");
1467 goto err_out_free_hw;
1468 }
1469
1470 qlcnic_create_sysfs_entries(adapter);
1471
1472 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1473 return 0;
1474
1475 err_out_free_hw:
1476 qlcnic_free_hw_resources(adapter);
1477 err_out_free_sw:
1478 qlcnic_free_sw_resources(adapter);
1479 err_out_napi_del:
1480 qlcnic_napi_del(adapter);
1481 return err;
1482 }
1483
1484 void qlcnic_detach(struct qlcnic_adapter *adapter)
1485 {
1486 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1487 return;
1488
1489 qlcnic_remove_sysfs_entries(adapter);
1490
1491 qlcnic_free_hw_resources(adapter);
1492 qlcnic_release_rx_buffers(adapter);
1493 qlcnic_free_irq(adapter);
1494 qlcnic_napi_del(adapter);
1495 qlcnic_free_sw_resources(adapter);
1496
1497 adapter->is_up = 0;
1498 }
1499
1500 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1501 {
1502 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1503 struct qlcnic_host_sds_ring *sds_ring;
1504 int ring;
1505
1506 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1507 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1508 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1509 sds_ring = &adapter->recv_ctx->sds_rings[ring];
1510 if (qlcnic_83xx_check(adapter))
1511 writel(1, sds_ring->crb_intr_mask);
1512 else
1513 qlcnic_disable_int(sds_ring);
1514 }
1515 }
1516
1517 qlcnic_fw_destroy_ctx(adapter);
1518
1519 qlcnic_detach(adapter);
1520
1521 adapter->ahw->diag_test = 0;
1522 adapter->max_sds_rings = max_sds_rings;
1523
1524 if (qlcnic_attach(adapter))
1525 goto out;
1526
1527 if (netif_running(netdev))
1528 __qlcnic_up(adapter, netdev);
1529 out:
1530 netif_device_attach(netdev);
1531 }
1532
1533 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1534 {
1535 int err = 0;
1536 adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1537 GFP_KERNEL);
1538 if (!adapter->recv_ctx) {
1539 dev_err(&adapter->pdev->dev,
1540 "Failed to allocate recv ctx resources for adapter\n");
1541 err = -ENOMEM;
1542 goto err_out;
1543 }
1544 /* Initialize interrupt coalesce parameters */
1545 adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1546 adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1547 adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1548 /* clear stats */
1549 memset(&adapter->stats, 0, sizeof(adapter->stats));
1550 err_out:
1551 return err;
1552 }
1553
1554 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1555 {
1556 kfree(adapter->recv_ctx);
1557 adapter->recv_ctx = NULL;
1558
1559 if (adapter->ahw->fw_dump.tmpl_hdr) {
1560 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1561 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1562 }
1563
1564 kfree(adapter->ahw->reset.buff);
1565 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1566 }
1567
1568 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1569 {
1570 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1571 struct qlcnic_host_sds_ring *sds_ring;
1572 struct qlcnic_host_rds_ring *rds_ring;
1573 int ring;
1574 int ret;
1575
1576 netif_device_detach(netdev);
1577
1578 if (netif_running(netdev))
1579 __qlcnic_down(adapter, netdev);
1580
1581 qlcnic_detach(adapter);
1582
1583 adapter->max_sds_rings = 1;
1584 adapter->ahw->diag_test = test;
1585 adapter->ahw->linkup = 0;
1586
1587 ret = qlcnic_attach(adapter);
1588 if (ret) {
1589 netif_device_attach(netdev);
1590 return ret;
1591 }
1592
1593 ret = qlcnic_fw_create_ctx(adapter);
1594 if (ret) {
1595 qlcnic_detach(adapter);
1596 netif_device_attach(netdev);
1597 return ret;
1598 }
1599
1600 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1601 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1602 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1603 }
1604
1605 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1606 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1607 sds_ring = &adapter->recv_ctx->sds_rings[ring];
1608 if (qlcnic_82xx_check(adapter))
1609 qlcnic_enable_int(sds_ring);
1610 else
1611 qlcnic_83xx_enable_intr(adapter, sds_ring);
1612 }
1613 }
1614
1615 if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1616 adapter->ahw->loopback_state = 0;
1617 qlcnic_linkevent_request(adapter, 1);
1618 }
1619
1620 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1621
1622 return 0;
1623 }
1624
1625 /* Reset context in hardware only */
1626 static int
1627 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1628 {
1629 struct net_device *netdev = adapter->netdev;
1630
1631 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1632 return -EBUSY;
1633
1634 netif_device_detach(netdev);
1635
1636 qlcnic_down(adapter, netdev);
1637
1638 qlcnic_up(adapter, netdev);
1639
1640 netif_device_attach(netdev);
1641
1642 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1643 dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1644 return 0;
1645 }
1646
1647 int
1648 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1649 {
1650 int err = 0;
1651 struct net_device *netdev = adapter->netdev;
1652
1653 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1654 return -EBUSY;
1655
1656 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1657
1658 netif_device_detach(netdev);
1659
1660 if (netif_running(netdev))
1661 __qlcnic_down(adapter, netdev);
1662
1663 qlcnic_detach(adapter);
1664
1665 if (netif_running(netdev)) {
1666 err = qlcnic_attach(adapter);
1667 if (!err) {
1668 __qlcnic_up(adapter, netdev);
1669 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1670 }
1671 }
1672
1673 netif_device_attach(netdev);
1674 }
1675
1676 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1677 return err;
1678 }
1679
1680 static int
1681 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
1682 int pci_using_dac)
1683 {
1684 int err;
1685 struct pci_dev *pdev = adapter->pdev;
1686
1687 adapter->rx_csum = 1;
1688 adapter->ahw->mc_enabled = 0;
1689 adapter->ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
1690
1691 netdev->netdev_ops = &qlcnic_netdev_ops;
1692 netdev->watchdog_timeo = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
1693
1694 qlcnic_change_mtu(netdev, netdev->mtu);
1695
1696 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1697
1698 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
1699 NETIF_F_IPV6_CSUM | NETIF_F_GRO |
1700 NETIF_F_HW_VLAN_RX);
1701 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1702 NETIF_F_IPV6_CSUM);
1703
1704 if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1705 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1706 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1707 }
1708
1709 if (pci_using_dac) {
1710 netdev->features |= NETIF_F_HIGHDMA;
1711 netdev->vlan_features |= NETIF_F_HIGHDMA;
1712 }
1713
1714 if (qlcnic_vlan_tx_check(adapter))
1715 netdev->features |= (NETIF_F_HW_VLAN_TX);
1716
1717 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1718 netdev->features |= NETIF_F_LRO;
1719
1720 netdev->hw_features = netdev->features;
1721 netdev->irq = adapter->msix_entries[0].vector;
1722
1723 err = register_netdev(netdev);
1724 if (err) {
1725 dev_err(&pdev->dev, "failed to register net device\n");
1726 return err;
1727 }
1728
1729 return 0;
1730 }
1731
1732 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
1733 {
1734 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1735 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1736 *pci_using_dac = 1;
1737 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1738 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1739 *pci_using_dac = 0;
1740 else {
1741 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1742 return -EIO;
1743 }
1744
1745 return 0;
1746 }
1747
1748 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
1749 {
1750 int ring;
1751 struct qlcnic_host_tx_ring *tx_ring;
1752
1753 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1754 tx_ring = &adapter->tx_ring[ring];
1755 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
1756 vfree(tx_ring->cmd_buf_arr);
1757 tx_ring->cmd_buf_arr = NULL;
1758 }
1759 }
1760 if (adapter->tx_ring != NULL)
1761 kfree(adapter->tx_ring);
1762 }
1763
1764 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
1765 struct net_device *netdev)
1766 {
1767 int ring, size, vector, index;
1768 struct qlcnic_host_tx_ring *tx_ring;
1769 struct qlcnic_cmd_buffer *cmd_buf_arr;
1770
1771 size = adapter->max_drv_tx_rings * sizeof(struct qlcnic_host_tx_ring);
1772 tx_ring = kzalloc(size, GFP_KERNEL);
1773 if (tx_ring == NULL) {
1774 dev_err(&netdev->dev, "failed to allocate tx rings\n");
1775 return -ENOMEM;
1776 }
1777 adapter->tx_ring = tx_ring;
1778
1779 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1780 tx_ring = &adapter->tx_ring[ring];
1781 tx_ring->num_desc = adapter->num_txd;
1782 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
1783 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
1784 if (cmd_buf_arr == NULL) {
1785 dev_err(&netdev->dev,
1786 "failed to allocate cmd buffer ring\n");
1787 qlcnic_free_tx_rings(adapter);
1788 return -ENOMEM;
1789 }
1790 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
1791 tx_ring->cmd_buf_arr = cmd_buf_arr;
1792 }
1793
1794 if (qlcnic_83xx_check(adapter)) {
1795 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1796 tx_ring = &adapter->tx_ring[ring];
1797 tx_ring->adapter = adapter;
1798 if (adapter->flags & QLCNIC_MSIX_ENABLED) {
1799 index = adapter->max_sds_rings + ring;
1800 vector = adapter->msix_entries[index].vector;
1801 tx_ring->irq = vector;
1802 }
1803 }
1804 }
1805 return 0;
1806 }
1807
1808 static int
1809 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1810 {
1811 struct net_device *netdev = NULL;
1812 struct qlcnic_adapter *adapter = NULL;
1813 struct qlcnic_hardware_context *ahw;
1814 int err, pci_using_dac = -1;
1815 u32 capab2;
1816 char board_name[QLCNIC_MAX_BOARD_NAME_LEN];
1817
1818 err = pci_enable_device(pdev);
1819 if (err)
1820 return err;
1821
1822 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1823 err = -ENODEV;
1824 goto err_out_disable_pdev;
1825 }
1826
1827 err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1828 if (err)
1829 goto err_out_disable_pdev;
1830
1831 err = pci_request_regions(pdev, qlcnic_driver_name);
1832 if (err)
1833 goto err_out_disable_pdev;
1834
1835 pci_set_master(pdev);
1836 pci_enable_pcie_error_reporting(pdev);
1837
1838 ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
1839 if (!ahw)
1840 goto err_out_free_res;
1841
1842 if (ent->device == PCI_DEVICE_ID_QLOGIC_QLE824X) {
1843 ahw->hw_ops = &qlcnic_hw_ops;
1844 ahw->reg_tbl = (u32 *)qlcnic_reg_tbl;
1845 } else if (ent->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1846 qlcnic_83xx_register_map(ahw);
1847 } else {
1848 goto err_out_free_hw_res;
1849 }
1850
1851 err = qlcnic_setup_pci_map(pdev, ahw);
1852 if (err)
1853 goto err_out_free_hw_res;
1854
1855 netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1856 if (!netdev) {
1857 err = -ENOMEM;
1858 goto err_out_iounmap;
1859 }
1860
1861 SET_NETDEV_DEV(netdev, &pdev->dev);
1862
1863 adapter = netdev_priv(netdev);
1864 adapter->netdev = netdev;
1865 adapter->pdev = pdev;
1866 adapter->ahw = ahw;
1867
1868 adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
1869 if (adapter->qlcnic_wq == NULL) {
1870 dev_err(&pdev->dev, "Failed to create workqueue\n");
1871 goto err_out_free_netdev;
1872 }
1873
1874 err = qlcnic_alloc_adapter_resources(adapter);
1875 if (err)
1876 goto err_out_free_netdev;
1877
1878 adapter->dev_rst_time = jiffies;
1879 adapter->ahw->revision_id = pdev->revision;
1880 if (qlcnic_mac_learn == FDB_MAC_LEARN)
1881 adapter->fdb_mac_learn = true;
1882 else if (qlcnic_mac_learn == DRV_MAC_LEARN)
1883 adapter->drv_mac_learn = true;
1884 adapter->max_drv_tx_rings = 1;
1885
1886 rwlock_init(&adapter->ahw->crb_lock);
1887 mutex_init(&adapter->ahw->mem_lock);
1888
1889 spin_lock_init(&adapter->tx_clean_lock);
1890 INIT_LIST_HEAD(&adapter->mac_list);
1891
1892 if (qlcnic_82xx_check(adapter)) {
1893 qlcnic_check_vf(adapter, ent);
1894 adapter->portnum = adapter->ahw->pci_func;
1895 err = qlcnic_start_firmware(adapter);
1896 if (err) {
1897 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1898 goto err_out_free_hw;
1899 }
1900
1901 err = qlcnic_setup_idc_param(adapter);
1902 if (err)
1903 goto err_out_free_hw;
1904
1905 adapter->flags |= QLCNIC_NEED_FLR;
1906 } else if (qlcnic_83xx_check(adapter)) {
1907 qlcnic_83xx_check_vf(adapter, ent);
1908 adapter->portnum = adapter->ahw->pci_func;
1909 err = qlcnic_83xx_init(adapter);
1910 if (err) {
1911 dev_err(&pdev->dev, "%s: failed\n", __func__);
1912 goto err_out_free_hw;
1913 }
1914 } else {
1915 dev_err(&pdev->dev,
1916 "%s: failed. Please Reboot\n", __func__);
1917 goto err_out_free_hw;
1918 }
1919
1920 if (qlcnic_read_mac_addr(adapter))
1921 dev_warn(&pdev->dev, "failed to read mac addr\n");
1922
1923 if (adapter->portnum == 0) {
1924 qlcnic_get_board_name(adapter, board_name);
1925
1926 pr_info("%s: %s Board Chip rev 0x%x\n",
1927 module_name(THIS_MODULE),
1928 board_name, adapter->ahw->revision_id);
1929 }
1930 err = qlcnic_setup_intr(adapter, 0);
1931 if (err) {
1932 dev_err(&pdev->dev, "Failed to setup interrupt\n");
1933 goto err_out_disable_msi;
1934 }
1935
1936 if (qlcnic_83xx_check(adapter)) {
1937 err = qlcnic_83xx_setup_mbx_intr(adapter);
1938 if (err)
1939 goto err_out_disable_msi;
1940 }
1941
1942 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1943 if (err)
1944 goto err_out_disable_mbx_intr;
1945
1946 if (qlcnic_82xx_check(adapter)) {
1947 if (ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1948 capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
1949 if (capab2 & QLCNIC_FW_CAPABILITY_2_OCBB)
1950 qlcnic_fw_cmd_set_drv_version(adapter);
1951 }
1952 }
1953
1954 pci_set_drvdata(pdev, adapter);
1955
1956 if (qlcnic_82xx_check(adapter))
1957 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
1958 FW_POLL_DELAY);
1959
1960 switch (adapter->ahw->port_type) {
1961 case QLCNIC_GBE:
1962 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1963 adapter->netdev->name);
1964 break;
1965 case QLCNIC_XGBE:
1966 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1967 adapter->netdev->name);
1968 break;
1969 }
1970
1971 if (qlcnic_get_act_pci_func(adapter))
1972 goto err_out_disable_mbx_intr;
1973
1974 if (adapter->drv_mac_learn)
1975 qlcnic_alloc_lb_filters_mem(adapter);
1976
1977 qlcnic_add_sysfs(adapter);
1978
1979 return 0;
1980
1981 err_out_disable_mbx_intr:
1982 if (qlcnic_83xx_check(adapter)) {
1983 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1984 qlcnic_83xx_config_intrpt(adapter, 0);
1985 qlcnic_83xx_free_mbx_intr(adapter);
1986 }
1987
1988 err_out_disable_msi:
1989 qlcnic_teardown_intr(adapter);
1990 qlcnic_cancel_idc_work(adapter);
1991 qlcnic_clr_all_drv_state(adapter, 0);
1992
1993 err_out_free_hw:
1994 qlcnic_free_adapter_resources(adapter);
1995
1996 err_out_free_netdev:
1997 free_netdev(netdev);
1998
1999 err_out_iounmap:
2000 qlcnic_cleanup_pci_map(adapter);
2001
2002 err_out_free_hw_res:
2003 kfree(ahw);
2004
2005 err_out_free_res:
2006 pci_release_regions(pdev);
2007
2008 err_out_disable_pdev:
2009 pci_set_drvdata(pdev, NULL);
2010 pci_disable_device(pdev);
2011 return err;
2012 }
2013
2014 static void qlcnic_remove(struct pci_dev *pdev)
2015 {
2016 struct qlcnic_adapter *adapter;
2017 struct net_device *netdev;
2018 struct qlcnic_hardware_context *ahw;
2019
2020 adapter = pci_get_drvdata(pdev);
2021 if (adapter == NULL)
2022 return;
2023
2024 netdev = adapter->netdev;
2025
2026 qlcnic_cancel_idc_work(adapter);
2027 ahw = adapter->ahw;
2028
2029 unregister_netdev(netdev);
2030
2031 if (qlcnic_83xx_check(adapter)) {
2032 if (adapter->flags & QLCNIC_MSIX_ENABLED)
2033 qlcnic_83xx_config_intrpt(adapter, 0);
2034 qlcnic_83xx_free_mbx_intr(adapter);
2035 }
2036
2037 qlcnic_detach(adapter);
2038
2039 if (adapter->npars != NULL)
2040 kfree(adapter->npars);
2041 if (adapter->eswitch != NULL)
2042 kfree(adapter->eswitch);
2043
2044 if (qlcnic_82xx_check(adapter))
2045 qlcnic_clr_all_drv_state(adapter, 0);
2046
2047 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2048
2049 qlcnic_free_lb_filters_mem(adapter);
2050
2051 qlcnic_teardown_intr(adapter);
2052
2053 qlcnic_remove_sysfs(adapter);
2054
2055 qlcnic_cleanup_pci_map(adapter);
2056
2057 qlcnic_release_firmware(adapter);
2058
2059 pci_disable_pcie_error_reporting(pdev);
2060 pci_release_regions(pdev);
2061 pci_disable_device(pdev);
2062 pci_set_drvdata(pdev, NULL);
2063
2064 if (adapter->qlcnic_wq) {
2065 destroy_workqueue(adapter->qlcnic_wq);
2066 adapter->qlcnic_wq = NULL;
2067 }
2068 qlcnic_free_adapter_resources(adapter);
2069 kfree(ahw);
2070 free_netdev(netdev);
2071 }
2072 static int __qlcnic_shutdown(struct pci_dev *pdev)
2073 {
2074 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2075 struct net_device *netdev = adapter->netdev;
2076 int retval;
2077
2078 netif_device_detach(netdev);
2079
2080 qlcnic_cancel_idc_work(adapter);
2081
2082 if (netif_running(netdev))
2083 qlcnic_down(adapter, netdev);
2084
2085 if (qlcnic_82xx_check(adapter))
2086 qlcnic_clr_all_drv_state(adapter, 0);
2087
2088 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2089
2090 retval = pci_save_state(pdev);
2091 if (retval)
2092 return retval;
2093 if (qlcnic_82xx_check(adapter)) {
2094 if (qlcnic_wol_supported(adapter)) {
2095 pci_enable_wake(pdev, PCI_D3cold, 1);
2096 pci_enable_wake(pdev, PCI_D3hot, 1);
2097 }
2098 }
2099
2100 return 0;
2101 }
2102
2103 static void qlcnic_shutdown(struct pci_dev *pdev)
2104 {
2105 if (__qlcnic_shutdown(pdev))
2106 return;
2107
2108 pci_disable_device(pdev);
2109 }
2110
2111 #ifdef CONFIG_PM
2112 static int
2113 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2114 {
2115 int retval;
2116
2117 retval = __qlcnic_shutdown(pdev);
2118 if (retval)
2119 return retval;
2120
2121 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2122 return 0;
2123 }
2124
2125 static int
2126 qlcnic_resume(struct pci_dev *pdev)
2127 {
2128 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2129 struct net_device *netdev = adapter->netdev;
2130 int err;
2131
2132 err = pci_enable_device(pdev);
2133 if (err)
2134 return err;
2135
2136 pci_set_power_state(pdev, PCI_D0);
2137 pci_set_master(pdev);
2138 pci_restore_state(pdev);
2139
2140 err = qlcnic_start_firmware(adapter);
2141 if (err) {
2142 dev_err(&pdev->dev, "failed to start firmware\n");
2143 return err;
2144 }
2145
2146 if (netif_running(netdev)) {
2147 err = qlcnic_up(adapter, netdev);
2148 if (err)
2149 goto done;
2150
2151 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2152 }
2153 done:
2154 netif_device_attach(netdev);
2155 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2156 return 0;
2157 }
2158 #endif
2159
2160 static int qlcnic_open(struct net_device *netdev)
2161 {
2162 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2163 int err;
2164
2165 netif_carrier_off(netdev);
2166
2167 err = qlcnic_attach(adapter);
2168 if (err)
2169 return err;
2170
2171 err = __qlcnic_up(adapter, netdev);
2172 if (err)
2173 goto err_out;
2174
2175 netif_start_queue(netdev);
2176
2177 return 0;
2178
2179 err_out:
2180 qlcnic_detach(adapter);
2181 return err;
2182 }
2183
2184 /*
2185 * qlcnic_close - Disables a network interface entry point
2186 */
2187 static int qlcnic_close(struct net_device *netdev)
2188 {
2189 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2190
2191 __qlcnic_down(adapter, netdev);
2192 if (qlcnic_83xx_check(adapter)) {
2193 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2194 cancel_delayed_work_sync(&adapter->idc_aen_work);
2195 }
2196
2197 return 0;
2198 }
2199
2200 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2201 {
2202 void *head;
2203 int i;
2204 struct net_device *netdev = adapter->netdev;
2205 u32 filter_size = 0;
2206 u16 act_pci_func = 0;
2207
2208 if (adapter->fhash.fmax && adapter->fhash.fhead)
2209 return;
2210
2211 act_pci_func = adapter->ahw->act_pci_func;
2212 spin_lock_init(&adapter->mac_learn_lock);
2213
2214 if (qlcnic_82xx_check(adapter)) {
2215 filter_size = QLCNIC_LB_MAX_FILTERS;
2216 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2217 } else {
2218 filter_size = QLC_83XX_LB_MAX_FILTERS;
2219 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2220 }
2221
2222 head = kcalloc(adapter->fhash.fbucket_size,
2223 sizeof(struct hlist_head), GFP_ATOMIC);
2224
2225 if (!head)
2226 return;
2227
2228 adapter->fhash.fmax = (filter_size / act_pci_func);
2229 adapter->fhash.fhead = head;
2230
2231 netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2232 act_pci_func, adapter->fhash.fmax);
2233
2234 for (i = 0; i < adapter->fhash.fbucket_size; i++)
2235 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2236 }
2237
2238 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2239 {
2240 if (adapter->fhash.fmax && adapter->fhash.fhead)
2241 kfree(adapter->fhash.fhead);
2242
2243 adapter->fhash.fhead = NULL;
2244 adapter->fhash.fmax = 0;
2245 }
2246
2247 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2248 {
2249 struct net_device *netdev = adapter->netdev;
2250 u32 temp_state, temp_val, temp = 0;
2251 int rv = 0;
2252
2253 if (qlcnic_83xx_check(adapter))
2254 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2255
2256 if (qlcnic_82xx_check(adapter))
2257 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2258
2259 temp_state = qlcnic_get_temp_state(temp);
2260 temp_val = qlcnic_get_temp_val(temp);
2261
2262 if (temp_state == QLCNIC_TEMP_PANIC) {
2263 dev_err(&netdev->dev,
2264 "Device temperature %d degrees C exceeds"
2265 " maximum allowed. Hardware has been shut down.\n",
2266 temp_val);
2267 rv = 1;
2268 } else if (temp_state == QLCNIC_TEMP_WARN) {
2269 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2270 dev_err(&netdev->dev,
2271 "Device temperature %d degrees C "
2272 "exceeds operating range."
2273 " Immediate action needed.\n",
2274 temp_val);
2275 }
2276 } else {
2277 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2278 dev_info(&netdev->dev,
2279 "Device temperature is now %d degrees C"
2280 " in normal range.\n", temp_val);
2281 }
2282 }
2283 adapter->ahw->temp = temp_state;
2284 return rv;
2285 }
2286
2287 static void qlcnic_tx_timeout(struct net_device *netdev)
2288 {
2289 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2290
2291 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2292 return;
2293
2294 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2295
2296 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2297 adapter->need_fw_reset = 1;
2298 else
2299 adapter->ahw->reset_context = 1;
2300 }
2301
2302 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2303 {
2304 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2305 struct net_device_stats *stats = &netdev->stats;
2306
2307 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2308 stats->tx_packets = adapter->stats.xmitfinished;
2309 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2310 stats->tx_bytes = adapter->stats.txbytes;
2311 stats->rx_dropped = adapter->stats.rxdropped;
2312 stats->tx_dropped = adapter->stats.txdropped;
2313
2314 return stats;
2315 }
2316
2317 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2318 {
2319 u32 status;
2320
2321 status = readl(adapter->isr_int_vec);
2322
2323 if (!(status & adapter->ahw->int_vec_bit))
2324 return IRQ_NONE;
2325
2326 /* check interrupt state machine, to be sure */
2327 status = readl(adapter->crb_int_state_reg);
2328 if (!ISR_LEGACY_INT_TRIGGERED(status))
2329 return IRQ_NONE;
2330
2331 writel(0xffffffff, adapter->tgt_status_reg);
2332 /* read twice to ensure write is flushed */
2333 readl(adapter->isr_int_vec);
2334 readl(adapter->isr_int_vec);
2335
2336 return IRQ_HANDLED;
2337 }
2338
2339 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2340 {
2341 struct qlcnic_host_sds_ring *sds_ring = data;
2342 struct qlcnic_adapter *adapter = sds_ring->adapter;
2343
2344 if (adapter->flags & QLCNIC_MSIX_ENABLED)
2345 goto done;
2346 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2347 writel(0xffffffff, adapter->tgt_status_reg);
2348 goto done;
2349 }
2350
2351 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2352 return IRQ_NONE;
2353
2354 done:
2355 adapter->ahw->diag_cnt++;
2356 qlcnic_enable_int(sds_ring);
2357 return IRQ_HANDLED;
2358 }
2359
2360 static irqreturn_t qlcnic_intr(int irq, void *data)
2361 {
2362 struct qlcnic_host_sds_ring *sds_ring = data;
2363 struct qlcnic_adapter *adapter = sds_ring->adapter;
2364
2365 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2366 return IRQ_NONE;
2367
2368 napi_schedule(&sds_ring->napi);
2369
2370 return IRQ_HANDLED;
2371 }
2372
2373 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2374 {
2375 struct qlcnic_host_sds_ring *sds_ring = data;
2376 struct qlcnic_adapter *adapter = sds_ring->adapter;
2377
2378 /* clear interrupt */
2379 writel(0xffffffff, adapter->tgt_status_reg);
2380
2381 napi_schedule(&sds_ring->napi);
2382 return IRQ_HANDLED;
2383 }
2384
2385 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2386 {
2387 struct qlcnic_host_sds_ring *sds_ring = data;
2388
2389 napi_schedule(&sds_ring->napi);
2390 return IRQ_HANDLED;
2391 }
2392
2393 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2394 {
2395 struct qlcnic_host_tx_ring *tx_ring = data;
2396
2397 napi_schedule(&tx_ring->napi);
2398 return IRQ_HANDLED;
2399 }
2400
2401 #ifdef CONFIG_NET_POLL_CONTROLLER
2402 static void qlcnic_poll_controller(struct net_device *netdev)
2403 {
2404 int ring;
2405 struct qlcnic_host_sds_ring *sds_ring;
2406 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2407 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2408
2409 disable_irq(adapter->irq);
2410 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2411 sds_ring = &recv_ctx->sds_rings[ring];
2412 qlcnic_intr(adapter->irq, sds_ring);
2413 }
2414 enable_irq(adapter->irq);
2415 }
2416 #endif
2417
2418 static void
2419 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2420 {
2421 u32 val;
2422
2423 val = adapter->portnum & 0xf;
2424 val |= encoding << 7;
2425 val |= (jiffies - adapter->dev_rst_time) << 8;
2426
2427 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2428 adapter->dev_rst_time = jiffies;
2429 }
2430
2431 static int
2432 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2433 {
2434 u32 val;
2435
2436 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2437 state != QLCNIC_DEV_NEED_QUISCENT);
2438
2439 if (qlcnic_api_lock(adapter))
2440 return -EIO;
2441
2442 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2443
2444 if (state == QLCNIC_DEV_NEED_RESET)
2445 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2446 else if (state == QLCNIC_DEV_NEED_QUISCENT)
2447 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2448
2449 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2450
2451 qlcnic_api_unlock(adapter);
2452
2453 return 0;
2454 }
2455
2456 static int
2457 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2458 {
2459 u32 val;
2460
2461 if (qlcnic_api_lock(adapter))
2462 return -EBUSY;
2463
2464 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2465 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2466 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2467
2468 qlcnic_api_unlock(adapter);
2469
2470 return 0;
2471 }
2472
2473 static void
2474 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2475 {
2476 u32 val;
2477
2478 if (qlcnic_api_lock(adapter))
2479 goto err;
2480
2481 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2482 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2483 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2484
2485 if (failed) {
2486 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2487 QLCNIC_DEV_FAILED);
2488 dev_info(&adapter->pdev->dev,
2489 "Device state set to Failed. Please Reboot\n");
2490 } else if (!(val & 0x11111111))
2491 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2492 QLCNIC_DEV_COLD);
2493
2494 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2495 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2496 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2497
2498 qlcnic_api_unlock(adapter);
2499 err:
2500 adapter->fw_fail_cnt = 0;
2501 adapter->flags &= ~QLCNIC_FW_HANG;
2502 clear_bit(__QLCNIC_START_FW, &adapter->state);
2503 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2504 }
2505
2506 /* Grab api lock, before checking state */
2507 static int
2508 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2509 {
2510 int act, state, active_mask;
2511 struct qlcnic_hardware_context *ahw = adapter->ahw;
2512
2513 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2514 act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2515
2516 if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2517 active_mask = (~(1 << (ahw->pci_func * 4)));
2518 act = act & active_mask;
2519 }
2520
2521 if (((state & 0x11111111) == (act & 0x11111111)) ||
2522 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2523 return 0;
2524 else
2525 return 1;
2526 }
2527
2528 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2529 {
2530 u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2531
2532 if (val != QLCNIC_DRV_IDC_VER) {
2533 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2534 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2535 }
2536
2537 return 0;
2538 }
2539
2540 static int
2541 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2542 {
2543 u32 val, prev_state;
2544 u8 dev_init_timeo = adapter->dev_init_timeo;
2545 u8 portnum = adapter->portnum;
2546 u8 ret;
2547
2548 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2549 return 1;
2550
2551 if (qlcnic_api_lock(adapter))
2552 return -1;
2553
2554 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2555 if (!(val & (1 << (portnum * 4)))) {
2556 QLC_DEV_SET_REF_CNT(val, portnum);
2557 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2558 }
2559
2560 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2561 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2562
2563 switch (prev_state) {
2564 case QLCNIC_DEV_COLD:
2565 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2566 QLCNIC_DEV_INITIALIZING);
2567 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2568 QLCNIC_DRV_IDC_VER);
2569 qlcnic_idc_debug_info(adapter, 0);
2570 qlcnic_api_unlock(adapter);
2571 return 1;
2572
2573 case QLCNIC_DEV_READY:
2574 ret = qlcnic_check_idc_ver(adapter);
2575 qlcnic_api_unlock(adapter);
2576 return ret;
2577
2578 case QLCNIC_DEV_NEED_RESET:
2579 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2580 QLC_DEV_SET_RST_RDY(val, portnum);
2581 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2582 break;
2583
2584 case QLCNIC_DEV_NEED_QUISCENT:
2585 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2586 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2587 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2588 break;
2589
2590 case QLCNIC_DEV_FAILED:
2591 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2592 qlcnic_api_unlock(adapter);
2593 return -1;
2594
2595 case QLCNIC_DEV_INITIALIZING:
2596 case QLCNIC_DEV_QUISCENT:
2597 break;
2598 }
2599
2600 qlcnic_api_unlock(adapter);
2601
2602 do {
2603 msleep(1000);
2604 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2605
2606 if (prev_state == QLCNIC_DEV_QUISCENT)
2607 continue;
2608 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2609
2610 if (!dev_init_timeo) {
2611 dev_err(&adapter->pdev->dev,
2612 "Waiting for device to initialize timeout\n");
2613 return -1;
2614 }
2615
2616 if (qlcnic_api_lock(adapter))
2617 return -1;
2618
2619 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2620 QLC_DEV_CLR_RST_QSCNT(val, portnum);
2621 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2622
2623 ret = qlcnic_check_idc_ver(adapter);
2624 qlcnic_api_unlock(adapter);
2625
2626 return ret;
2627 }
2628
2629 static void
2630 qlcnic_fwinit_work(struct work_struct *work)
2631 {
2632 struct qlcnic_adapter *adapter = container_of(work,
2633 struct qlcnic_adapter, fw_work.work);
2634 u32 dev_state = 0xf;
2635 u32 val;
2636
2637 if (qlcnic_api_lock(adapter))
2638 goto err_ret;
2639
2640 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2641 if (dev_state == QLCNIC_DEV_QUISCENT ||
2642 dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2643 qlcnic_api_unlock(adapter);
2644 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2645 FW_POLL_DELAY * 2);
2646 return;
2647 }
2648
2649 if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
2650 qlcnic_api_unlock(adapter);
2651 goto wait_npar;
2652 }
2653
2654 if (dev_state == QLCNIC_DEV_INITIALIZING ||
2655 dev_state == QLCNIC_DEV_READY) {
2656 dev_info(&adapter->pdev->dev, "Detected state change from "
2657 "DEV_NEED_RESET, skipping ack check\n");
2658 goto skip_ack_check;
2659 }
2660
2661 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2662 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2663 adapter->reset_ack_timeo);
2664 goto skip_ack_check;
2665 }
2666
2667 if (!qlcnic_check_drv_state(adapter)) {
2668 skip_ack_check:
2669 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2670
2671 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2672 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2673 QLCNIC_DEV_INITIALIZING);
2674 set_bit(__QLCNIC_START_FW, &adapter->state);
2675 QLCDB(adapter, DRV, "Restarting fw\n");
2676 qlcnic_idc_debug_info(adapter, 0);
2677 val = QLC_SHARED_REG_RD32(adapter,
2678 QLCNIC_CRB_DRV_STATE);
2679 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2680 QLC_SHARED_REG_WR32(adapter,
2681 QLCNIC_CRB_DRV_STATE, val);
2682 }
2683
2684 qlcnic_api_unlock(adapter);
2685
2686 rtnl_lock();
2687 if (adapter->ahw->fw_dump.enable &&
2688 (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2689 QLCDB(adapter, DRV, "Take FW dump\n");
2690 qlcnic_dump_fw(adapter);
2691 adapter->flags |= QLCNIC_FW_HANG;
2692 }
2693 rtnl_unlock();
2694
2695 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2696 if (!adapter->nic_ops->start_firmware(adapter)) {
2697 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2698 adapter->fw_wait_cnt = 0;
2699 return;
2700 }
2701 goto err_ret;
2702 }
2703
2704 qlcnic_api_unlock(adapter);
2705
2706 wait_npar:
2707 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2708 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2709
2710 switch (dev_state) {
2711 case QLCNIC_DEV_READY:
2712 if (!qlcnic_start_firmware(adapter)) {
2713 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2714 adapter->fw_wait_cnt = 0;
2715 return;
2716 }
2717 case QLCNIC_DEV_FAILED:
2718 break;
2719 default:
2720 qlcnic_schedule_work(adapter,
2721 qlcnic_fwinit_work, FW_POLL_DELAY);
2722 return;
2723 }
2724
2725 err_ret:
2726 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2727 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2728 netif_device_attach(adapter->netdev);
2729 qlcnic_clr_all_drv_state(adapter, 0);
2730 }
2731
2732 static void
2733 qlcnic_detach_work(struct work_struct *work)
2734 {
2735 struct qlcnic_adapter *adapter = container_of(work,
2736 struct qlcnic_adapter, fw_work.work);
2737 struct net_device *netdev = adapter->netdev;
2738 u32 status;
2739
2740 netif_device_detach(netdev);
2741
2742 /* Dont grab rtnl lock during Quiscent mode */
2743 if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2744 if (netif_running(netdev))
2745 __qlcnic_down(adapter, netdev);
2746 } else
2747 qlcnic_down(adapter, netdev);
2748
2749 status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2750
2751 if (status & QLCNIC_RCODE_FATAL_ERROR) {
2752 dev_err(&adapter->pdev->dev,
2753 "Detaching the device: peg halt status1=0x%x\n",
2754 status);
2755
2756 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
2757 dev_err(&adapter->pdev->dev,
2758 "On board active cooling fan failed. "
2759 "Device has been halted.\n");
2760 dev_err(&adapter->pdev->dev,
2761 "Replace the adapter.\n");
2762 }
2763
2764 goto err_ret;
2765 }
2766
2767 if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
2768 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
2769 adapter->ahw->temp);
2770 goto err_ret;
2771 }
2772
2773 /* Dont ack if this instance is the reset owner */
2774 if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2775 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
2776 dev_err(&adapter->pdev->dev,
2777 "Failed to set driver state,"
2778 "detaching the device.\n");
2779 goto err_ret;
2780 }
2781 }
2782
2783 adapter->fw_wait_cnt = 0;
2784
2785 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2786
2787 return;
2788
2789 err_ret:
2790 netif_device_attach(netdev);
2791 qlcnic_clr_all_drv_state(adapter, 1);
2792 }
2793
2794 /*Transit NPAR state to NON Operational */
2795 static void
2796 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2797 {
2798 u32 state;
2799
2800 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2801 if (state == QLCNIC_DEV_NPAR_NON_OPER)
2802 return;
2803
2804 if (qlcnic_api_lock(adapter))
2805 return;
2806 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2807 QLCNIC_DEV_NPAR_NON_OPER);
2808 qlcnic_api_unlock(adapter);
2809 }
2810
2811 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
2812 {
2813 u32 state, xg_val = 0, gb_val = 0;
2814
2815 qlcnic_xg_set_xg0_mask(xg_val);
2816 qlcnic_xg_set_xg1_mask(xg_val);
2817 QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
2818 qlcnic_gb_set_gb0_mask(gb_val);
2819 qlcnic_gb_set_gb1_mask(gb_val);
2820 qlcnic_gb_set_gb2_mask(gb_val);
2821 qlcnic_gb_set_gb3_mask(gb_val);
2822 QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
2823 dev_info(&adapter->pdev->dev, "Pause control frames disabled"
2824 " on all ports\n");
2825 adapter->need_fw_reset = 1;
2826
2827 if (qlcnic_api_lock(adapter))
2828 return;
2829
2830 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2831
2832 if (state == QLCNIC_DEV_READY) {
2833 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2834 QLCNIC_DEV_NEED_RESET);
2835 adapter->flags |= QLCNIC_FW_RESET_OWNER;
2836 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2837 qlcnic_idc_debug_info(adapter, 0);
2838 }
2839
2840 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2841 QLCNIC_DEV_NPAR_NON_OPER);
2842 qlcnic_api_unlock(adapter);
2843 }
2844
2845 /* Transit to NPAR READY state from NPAR NOT READY state */
2846 static void
2847 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2848 {
2849 if (qlcnic_api_lock(adapter))
2850 return;
2851
2852 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2853 QLCNIC_DEV_NPAR_OPER);
2854 QLCDB(adapter, DRV, "NPAR operational state set\n");
2855
2856 qlcnic_api_unlock(adapter);
2857 }
2858
2859 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2860 work_func_t func, int delay)
2861 {
2862 if (test_bit(__QLCNIC_AER, &adapter->state))
2863 return;
2864
2865 INIT_DELAYED_WORK(&adapter->fw_work, func);
2866 queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
2867 round_jiffies_relative(delay));
2868 }
2869
2870 static void
2871 qlcnic_attach_work(struct work_struct *work)
2872 {
2873 struct qlcnic_adapter *adapter = container_of(work,
2874 struct qlcnic_adapter, fw_work.work);
2875 struct net_device *netdev = adapter->netdev;
2876 u32 npar_state;
2877
2878 if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
2879 npar_state = QLC_SHARED_REG_RD32(adapter,
2880 QLCNIC_CRB_DEV_NPAR_STATE);
2881 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2882 qlcnic_clr_all_drv_state(adapter, 0);
2883 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2884 qlcnic_schedule_work(adapter, qlcnic_attach_work,
2885 FW_POLL_DELAY);
2886 else
2887 goto attach;
2888 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2889 return;
2890 }
2891 attach:
2892 if (netif_running(netdev)) {
2893 if (qlcnic_up(adapter, netdev))
2894 goto done;
2895
2896 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2897 }
2898
2899 done:
2900 netif_device_attach(netdev);
2901 adapter->fw_fail_cnt = 0;
2902 adapter->flags &= ~QLCNIC_FW_HANG;
2903 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2904
2905 if (!qlcnic_clr_drv_state(adapter))
2906 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2907 FW_POLL_DELAY);
2908 }
2909
2910 static int
2911 qlcnic_check_health(struct qlcnic_adapter *adapter)
2912 {
2913 u32 state = 0, heartbeat;
2914 u32 peg_status;
2915
2916 if (qlcnic_check_temp(adapter))
2917 goto detach;
2918
2919 if (adapter->need_fw_reset)
2920 qlcnic_dev_request_reset(adapter, 0);
2921
2922 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2923 if (state == QLCNIC_DEV_NEED_RESET) {
2924 qlcnic_set_npar_non_operational(adapter);
2925 adapter->need_fw_reset = 1;
2926 } else if (state == QLCNIC_DEV_NEED_QUISCENT)
2927 goto detach;
2928
2929 heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2930 if (heartbeat != adapter->heartbeat) {
2931 adapter->heartbeat = heartbeat;
2932 adapter->fw_fail_cnt = 0;
2933 if (adapter->need_fw_reset)
2934 goto detach;
2935
2936 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset) {
2937 qlcnic_reset_hw_context(adapter);
2938 adapter->netdev->trans_start = jiffies;
2939 }
2940
2941 return 0;
2942 }
2943
2944 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2945 return 0;
2946
2947 adapter->flags |= QLCNIC_FW_HANG;
2948
2949 qlcnic_dev_request_reset(adapter, 0);
2950
2951 if (qlcnic_auto_fw_reset)
2952 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2953
2954 dev_err(&adapter->pdev->dev, "firmware hang detected\n");
2955 peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2956 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2957 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2958 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2959 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2960 "PEG_NET_4_PC: 0x%x\n",
2961 peg_status,
2962 QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
2963 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c),
2964 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c),
2965 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c),
2966 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c),
2967 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c));
2968 if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
2969 dev_err(&adapter->pdev->dev,
2970 "Firmware aborted with error code 0x00006700. "
2971 "Device is being reset.\n");
2972 detach:
2973 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
2974 QLCNIC_DEV_NEED_RESET;
2975
2976 if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
2977 &adapter->state)) {
2978
2979 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
2980 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
2981 }
2982
2983 return 1;
2984 }
2985
2986 static void
2987 qlcnic_fw_poll_work(struct work_struct *work)
2988 {
2989 struct qlcnic_adapter *adapter = container_of(work,
2990 struct qlcnic_adapter, fw_work.work);
2991
2992 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2993 goto reschedule;
2994
2995
2996 if (qlcnic_check_health(adapter))
2997 return;
2998
2999 if (adapter->fhash.fnum)
3000 qlcnic_prune_lb_filters(adapter);
3001
3002 reschedule:
3003 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3004 }
3005
3006 static int qlcnic_is_first_func(struct pci_dev *pdev)
3007 {
3008 struct pci_dev *oth_pdev;
3009 int val = pdev->devfn;
3010
3011 while (val-- > 0) {
3012 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3013 (pdev->bus), pdev->bus->number,
3014 PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3015 if (!oth_pdev)
3016 continue;
3017
3018 if (oth_pdev->current_state != PCI_D3cold) {
3019 pci_dev_put(oth_pdev);
3020 return 0;
3021 }
3022 pci_dev_put(oth_pdev);
3023 }
3024 return 1;
3025 }
3026
3027 static int qlcnic_attach_func(struct pci_dev *pdev)
3028 {
3029 int err, first_func;
3030 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3031 struct net_device *netdev = adapter->netdev;
3032
3033 pdev->error_state = pci_channel_io_normal;
3034
3035 err = pci_enable_device(pdev);
3036 if (err)
3037 return err;
3038
3039 pci_set_power_state(pdev, PCI_D0);
3040 pci_set_master(pdev);
3041 pci_restore_state(pdev);
3042
3043 first_func = qlcnic_is_first_func(pdev);
3044
3045 if (qlcnic_api_lock(adapter))
3046 return -EINVAL;
3047
3048 if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3049 adapter->need_fw_reset = 1;
3050 set_bit(__QLCNIC_START_FW, &adapter->state);
3051 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3052 QLCNIC_DEV_INITIALIZING);
3053 QLCDB(adapter, DRV, "Restarting fw\n");
3054 }
3055 qlcnic_api_unlock(adapter);
3056
3057 err = qlcnic_start_firmware(adapter);
3058 if (err)
3059 return err;
3060
3061 qlcnic_clr_drv_state(adapter);
3062 kfree(adapter->msix_entries);
3063 adapter->msix_entries = NULL;
3064 err = qlcnic_setup_intr(adapter, 0);
3065
3066 if (err) {
3067 kfree(adapter->msix_entries);
3068 netdev_err(netdev, "failed to setup interrupt\n");
3069 return err;
3070 }
3071
3072 if (qlcnic_83xx_check(adapter)) {
3073 err = qlcnic_83xx_setup_mbx_intr(adapter);
3074 if (err) {
3075 dev_err(&adapter->pdev->dev,
3076 "failed to setup mbx interrupt\n");
3077 qlcnic_clr_all_drv_state(adapter, 1);
3078 clear_bit(__QLCNIC_AER, &adapter->state);
3079 goto done;
3080 }
3081 }
3082
3083 if (netif_running(netdev)) {
3084 err = qlcnic_attach(adapter);
3085 if (err) {
3086 qlcnic_clr_all_drv_state(adapter, 1);
3087 clear_bit(__QLCNIC_AER, &adapter->state);
3088 netif_device_attach(netdev);
3089 return err;
3090 }
3091
3092 err = qlcnic_up(adapter, netdev);
3093 if (err)
3094 goto done;
3095
3096 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3097 }
3098 done:
3099 netif_device_attach(netdev);
3100 return err;
3101 }
3102
3103 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3104 pci_channel_state_t state)
3105 {
3106 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3107 struct net_device *netdev = adapter->netdev;
3108
3109 if (state == pci_channel_io_perm_failure)
3110 return PCI_ERS_RESULT_DISCONNECT;
3111
3112 if (state == pci_channel_io_normal)
3113 return PCI_ERS_RESULT_RECOVERED;
3114
3115 set_bit(__QLCNIC_AER, &adapter->state);
3116 netif_device_detach(netdev);
3117
3118 cancel_delayed_work_sync(&adapter->fw_work);
3119
3120 if (netif_running(netdev))
3121 qlcnic_down(adapter, netdev);
3122
3123 if (qlcnic_83xx_check(adapter)) {
3124 if (adapter->flags & QLCNIC_MSIX_ENABLED)
3125 qlcnic_83xx_config_intrpt(adapter, 0);
3126 qlcnic_83xx_free_mbx_intr(adapter);
3127 }
3128
3129 qlcnic_detach(adapter);
3130 qlcnic_teardown_intr(adapter);
3131
3132 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3133
3134 pci_save_state(pdev);
3135 pci_disable_device(pdev);
3136
3137 return PCI_ERS_RESULT_NEED_RESET;
3138 }
3139
3140 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3141 {
3142 return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3143 PCI_ERS_RESULT_RECOVERED;
3144 }
3145
3146 static void qlcnic_io_resume(struct pci_dev *pdev)
3147 {
3148 u32 state;
3149 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3150
3151 pci_cleanup_aer_uncorrect_error_status(pdev);
3152 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3153 if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3154 &adapter->state))
3155 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3156 FW_POLL_DELAY);
3157 }
3158
3159 static int
3160 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3161 {
3162 int err;
3163
3164 err = qlcnic_can_start_firmware(adapter);
3165 if (err)
3166 return err;
3167
3168 err = qlcnic_check_npar_opertional(adapter);
3169 if (err)
3170 return err;
3171
3172 err = qlcnic_initialize_nic(adapter);
3173 if (err)
3174 return err;
3175
3176 qlcnic_check_options(adapter);
3177
3178 err = qlcnic_set_eswitch_port_config(adapter);
3179 if (err)
3180 return err;
3181
3182 adapter->need_fw_reset = 0;
3183
3184 return err;
3185 }
3186
3187 int qlcnic_validate_max_rss(u8 max_hw, u8 val)
3188 {
3189 u32 max_allowed;
3190
3191 if (max_hw > QLC_MAX_SDS_RINGS) {
3192 max_hw = QLC_MAX_SDS_RINGS;
3193 pr_info("max rss reset to %d\n", QLC_MAX_SDS_RINGS);
3194 }
3195
3196 max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3197 num_online_cpus()));
3198 if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3199 pr_info("rss_ring valid range [2 - %x] in powers of 2\n",
3200 max_allowed);
3201 return -EINVAL;
3202 }
3203 return 0;
3204 }
3205
3206 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, size_t len)
3207 {
3208 int err;
3209 struct net_device *netdev = adapter->netdev;
3210
3211 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3212 return -EBUSY;
3213
3214 netif_device_detach(netdev);
3215 if (netif_running(netdev))
3216 __qlcnic_down(adapter, netdev);
3217
3218 if (qlcnic_83xx_check(adapter)) {
3219 if (adapter->flags & QLCNIC_MSIX_ENABLED)
3220 qlcnic_83xx_config_intrpt(adapter, 0);
3221 qlcnic_83xx_free_mbx_intr(adapter);
3222 }
3223
3224 qlcnic_detach(adapter);
3225 qlcnic_teardown_intr(adapter);
3226 err = qlcnic_setup_intr(adapter, data);
3227 if (err) {
3228 kfree(adapter->msix_entries);
3229 netdev_err(netdev, "failed to setup interrupt\n");
3230 return err;
3231 }
3232
3233 if (qlcnic_83xx_check(adapter)) {
3234 err = qlcnic_83xx_setup_mbx_intr(adapter);
3235 if (err) {
3236 dev_err(&adapter->pdev->dev,
3237 "failed to setup mbx interrupt\n");
3238 goto done;
3239 }
3240 }
3241
3242 if (netif_running(netdev)) {
3243 err = qlcnic_attach(adapter);
3244 if (err)
3245 goto done;
3246 err = __qlcnic_up(adapter, netdev);
3247 if (err)
3248 goto done;
3249 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3250 }
3251 err = len;
3252 done:
3253 netif_device_attach(netdev);
3254 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3255 return err;
3256 }
3257
3258 #ifdef CONFIG_INET
3259
3260 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3261
3262 static void
3263 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3264 struct net_device *dev, unsigned long event)
3265 {
3266 struct in_device *indev;
3267
3268 indev = in_dev_get(dev);
3269 if (!indev)
3270 return;
3271
3272 for_ifa(indev) {
3273 switch (event) {
3274 case NETDEV_UP:
3275 qlcnic_config_ipaddr(adapter,
3276 ifa->ifa_address, QLCNIC_IP_UP);
3277 break;
3278 case NETDEV_DOWN:
3279 qlcnic_config_ipaddr(adapter,
3280 ifa->ifa_address, QLCNIC_IP_DOWN);
3281 break;
3282 default:
3283 break;
3284 }
3285 } endfor_ifa(indev);
3286
3287 in_dev_put(indev);
3288 }
3289
3290 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3291 {
3292 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3293 struct net_device *dev;
3294 u16 vid;
3295
3296 qlcnic_config_indev_addr(adapter, netdev, event);
3297
3298 rcu_read_lock();
3299 for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3300 dev = __vlan_find_dev_deep(netdev, vid);
3301 if (!dev)
3302 continue;
3303 qlcnic_config_indev_addr(adapter, dev, event);
3304 }
3305 rcu_read_unlock();
3306 }
3307
3308 static int qlcnic_netdev_event(struct notifier_block *this,
3309 unsigned long event, void *ptr)
3310 {
3311 struct qlcnic_adapter *adapter;
3312 struct net_device *dev = (struct net_device *)ptr;
3313
3314 recheck:
3315 if (dev == NULL)
3316 goto done;
3317
3318 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3319 dev = vlan_dev_real_dev(dev);
3320 goto recheck;
3321 }
3322
3323 if (!is_qlcnic_netdev(dev))
3324 goto done;
3325
3326 adapter = netdev_priv(dev);
3327
3328 if (!adapter)
3329 goto done;
3330
3331 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3332 goto done;
3333
3334 qlcnic_config_indev_addr(adapter, dev, event);
3335 done:
3336 return NOTIFY_DONE;
3337 }
3338
3339 static int
3340 qlcnic_inetaddr_event(struct notifier_block *this,
3341 unsigned long event, void *ptr)
3342 {
3343 struct qlcnic_adapter *adapter;
3344 struct net_device *dev;
3345
3346 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3347
3348 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3349
3350 recheck:
3351 if (dev == NULL)
3352 goto done;
3353
3354 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3355 dev = vlan_dev_real_dev(dev);
3356 goto recheck;
3357 }
3358
3359 if (!is_qlcnic_netdev(dev))
3360 goto done;
3361
3362 adapter = netdev_priv(dev);
3363
3364 if (!adapter)
3365 goto done;
3366
3367 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3368 goto done;
3369
3370 switch (event) {
3371 case NETDEV_UP:
3372 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3373
3374 break;
3375 case NETDEV_DOWN:
3376 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3377
3378 break;
3379 default:
3380 break;
3381 }
3382
3383 done:
3384 return NOTIFY_DONE;
3385 }
3386
3387 static struct notifier_block qlcnic_netdev_cb = {
3388 .notifier_call = qlcnic_netdev_event,
3389 };
3390
3391 static struct notifier_block qlcnic_inetaddr_cb = {
3392 .notifier_call = qlcnic_inetaddr_event,
3393 };
3394 #else
3395 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3396 { }
3397 #endif
3398 static const struct pci_error_handlers qlcnic_err_handler = {
3399 .error_detected = qlcnic_io_error_detected,
3400 .slot_reset = qlcnic_io_slot_reset,
3401 .resume = qlcnic_io_resume,
3402 };
3403
3404 static struct pci_driver qlcnic_driver = {
3405 .name = qlcnic_driver_name,
3406 .id_table = qlcnic_pci_tbl,
3407 .probe = qlcnic_probe,
3408 .remove = qlcnic_remove,
3409 #ifdef CONFIG_PM
3410 .suspend = qlcnic_suspend,
3411 .resume = qlcnic_resume,
3412 #endif
3413 .shutdown = qlcnic_shutdown,
3414 .err_handler = &qlcnic_err_handler
3415
3416 };
3417
3418 static int __init qlcnic_init_module(void)
3419 {
3420 int ret;
3421
3422 printk(KERN_INFO "%s\n", qlcnic_driver_string);
3423
3424 #ifdef CONFIG_INET
3425 register_netdevice_notifier(&qlcnic_netdev_cb);
3426 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3427 #endif
3428
3429 ret = pci_register_driver(&qlcnic_driver);
3430 if (ret) {
3431 #ifdef CONFIG_INET
3432 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3433 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3434 #endif
3435 }
3436
3437 return ret;
3438 }
3439
3440 module_init(qlcnic_init_module);
3441
3442 static void __exit qlcnic_exit_module(void)
3443 {
3444 pci_unregister_driver(&qlcnic_driver);
3445
3446 #ifdef CONFIG_INET
3447 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3448 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3449 #endif
3450 }
3451
3452 module_exit(qlcnic_exit_module);
Linux kernel - Deliverables
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