projects / deliverable / linux.git / blob
? search:


e03017a999b4c30b00fad6c0c4ba315ac9d6063d
[deliverable/linux.git] / drivers / net / ethernet / qlogic / qlcnic / qlcnic_main.c
1 /*
2 * QLogic qlcnic NIC Driver
3 * Copyright (c) 2009-2013 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 nlattr *tb[],
251 struct net_device *netdev, 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 return -ENOMEM;
419 }
420
421 adapter->max_sds_rings = 1;
422 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
423
424 if (adapter->ahw->msix_supported) {
425 enable_msix:
426 for (i = 0; i < num_msix; i++)
427 adapter->msix_entries[i].entry = i;
428 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
429 if (err == 0) {
430 adapter->flags |= QLCNIC_MSIX_ENABLED;
431 if (qlcnic_83xx_check(adapter)) {
432 adapter->ahw->num_msix = num_msix;
433 /* subtract mail box and tx ring vectors */
434 max_tx_rings = adapter->max_drv_tx_rings;
435 adapter->max_sds_rings = num_msix -
436 max_tx_rings - 1;
437 } else {
438 adapter->max_sds_rings = num_msix;
439 }
440 dev_info(&pdev->dev, "using msi-x interrupts\n");
441 return err;
442 } else if (err > 0) {
443 dev_info(&pdev->dev,
444 "Unable to allocate %d MSI-X interrupt vectors\n",
445 num_msix);
446 if (qlcnic_83xx_check(adapter)) {
447 if (err < QLC_83XX_MINIMUM_VECTOR)
448 return err;
449 err -= (adapter->max_drv_tx_rings + 1);
450 num_msix = rounddown_pow_of_two(err);
451 num_msix += (adapter->max_drv_tx_rings + 1);
452 } else {
453 num_msix = rounddown_pow_of_two(err);
454 }
455
456 if (num_msix) {
457 dev_info(&pdev->dev,
458 "Trying to allocate %d MSI-X interrupt vectors\n",
459 num_msix);
460 goto enable_msix;
461 }
462 } else {
463 dev_info(&pdev->dev,
464 "Unable to allocate %d MSI-X interrupt vectors\n",
465 num_msix);
466 }
467 }
468
469 return err;
470 }
471
472 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
473 {
474 int err = 0;
475 u32 offset, mask_reg;
476 const struct qlcnic_legacy_intr_set *legacy_intrp;
477 struct qlcnic_hardware_context *ahw = adapter->ahw;
478 struct pci_dev *pdev = adapter->pdev;
479
480 if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
481 adapter->flags |= QLCNIC_MSI_ENABLED;
482 offset = msi_tgt_status[adapter->ahw->pci_func];
483 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
484 offset);
485 dev_info(&pdev->dev, "using msi interrupts\n");
486 adapter->msix_entries[0].vector = pdev->irq;
487 return err;
488 }
489 if (qlcnic_use_msi || qlcnic_use_msi_x)
490 return -EOPNOTSUPP;
491
492 legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
493 adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
494 offset = legacy_intrp->tgt_status_reg;
495 adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
496 mask_reg = legacy_intrp->tgt_mask_reg;
497 adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
498 adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
499 adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
500 dev_info(&pdev->dev, "using legacy interrupts\n");
501 adapter->msix_entries[0].vector = pdev->irq;
502 return err;
503 }
504
505 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr)
506 {
507 int num_msix, err = 0;
508
509 if (!num_intr)
510 num_intr = QLCNIC_DEF_NUM_STS_DESC_RINGS;
511
512 if (adapter->ahw->msix_supported)
513 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
514 num_intr));
515 else
516 num_msix = 1;
517
518 err = qlcnic_enable_msix(adapter, num_msix);
519 if (err == -ENOMEM || !err)
520 return err;
521
522 err = qlcnic_enable_msi_legacy(adapter);
523 if (!err)
524 return err;
525
526 return -EIO;
527 }
528
529 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
530 {
531 if (adapter->flags & QLCNIC_MSIX_ENABLED)
532 pci_disable_msix(adapter->pdev);
533 if (adapter->flags & QLCNIC_MSI_ENABLED)
534 pci_disable_msi(adapter->pdev);
535
536 kfree(adapter->msix_entries);
537 adapter->msix_entries = NULL;
538
539 if (adapter->ahw->intr_tbl) {
540 vfree(adapter->ahw->intr_tbl);
541 adapter->ahw->intr_tbl = NULL;
542 }
543 }
544
545 static void
546 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
547 {
548 if (adapter->ahw->pci_base0 != NULL)
549 iounmap(adapter->ahw->pci_base0);
550 }
551
552 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
553 {
554 struct qlcnic_pci_info *pci_info;
555 int ret;
556
557 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
558 switch (adapter->ahw->port_type) {
559 case QLCNIC_GBE:
560 adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_GBE_PORTS;
561 break;
562 case QLCNIC_XGBE:
563 adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_XG_PORTS;
564 break;
565 }
566 return 0;
567 }
568
569 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
570 return 0;
571
572 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
573 if (!pci_info)
574 return -ENOMEM;
575
576 ret = qlcnic_get_pci_info(adapter, pci_info);
577 kfree(pci_info);
578 return ret;
579 }
580
581 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
582 {
583 struct qlcnic_pci_info *pci_info;
584 int i, ret = 0, j = 0;
585 u16 act_pci_func;
586 u8 pfn;
587
588 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
589 if (!pci_info)
590 return -ENOMEM;
591
592 ret = qlcnic_get_pci_info(adapter, pci_info);
593 if (ret)
594 goto err_pci_info;
595
596 act_pci_func = adapter->ahw->act_pci_func;
597
598 adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
599 act_pci_func, GFP_KERNEL);
600 if (!adapter->npars) {
601 ret = -ENOMEM;
602 goto err_pci_info;
603 }
604
605 adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
606 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
607 if (!adapter->eswitch) {
608 ret = -ENOMEM;
609 goto err_npars;
610 }
611
612 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
613 pfn = pci_info[i].id;
614
615 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
616 ret = QL_STATUS_INVALID_PARAM;
617 goto err_eswitch;
618 }
619
620 if (!pci_info[i].active ||
621 (pci_info[i].type != QLCNIC_TYPE_NIC))
622 continue;
623
624 adapter->npars[j].pci_func = pfn;
625 adapter->npars[j].active = (u8)pci_info[i].active;
626 adapter->npars[j].type = (u8)pci_info[i].type;
627 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
628 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
629 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
630 j++;
631 }
632
633 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++) {
634 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
635 if (qlcnic_83xx_check(adapter))
636 qlcnic_enable_eswitch(adapter, i, 1);
637 }
638
639 kfree(pci_info);
640 return 0;
641
642 err_eswitch:
643 kfree(adapter->eswitch);
644 adapter->eswitch = NULL;
645 err_npars:
646 kfree(adapter->npars);
647 adapter->npars = NULL;
648 err_pci_info:
649 kfree(pci_info);
650
651 return ret;
652 }
653
654 static int
655 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
656 {
657 u8 id;
658 int i, ret = 1;
659 u32 data = QLCNIC_MGMT_FUNC;
660 struct qlcnic_hardware_context *ahw = adapter->ahw;
661
662 ret = qlcnic_api_lock(adapter);
663 if (ret)
664 goto err_lock;
665
666 if (qlcnic_config_npars) {
667 for (i = 0; i < ahw->act_pci_func; i++) {
668 id = adapter->npars[i].pci_func;
669 if (id == ahw->pci_func)
670 continue;
671 data |= (qlcnic_config_npars &
672 QLC_DEV_SET_DRV(0xf, id));
673 }
674 } else {
675 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
676 data = (data & ~QLC_DEV_SET_DRV(0xf, ahw->pci_func)) |
677 (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
678 ahw->pci_func));
679 }
680 QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
681 qlcnic_api_unlock(adapter);
682 err_lock:
683 return ret;
684 }
685
686 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
687 const struct pci_device_id *ent)
688 {
689 u32 op_mode, priv_level;
690
691 /* Determine FW API version */
692 adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
693 QLCNIC_FW_API);
694
695 /* Find PCI function number */
696 qlcnic_get_func_no(adapter);
697
698 /* Determine function privilege level */
699 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
700 if (op_mode == QLC_DEV_DRV_DEFAULT)
701 priv_level = QLCNIC_MGMT_FUNC;
702 else
703 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
704
705 if (priv_level == QLCNIC_NON_PRIV_FUNC) {
706 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
707 dev_info(&adapter->pdev->dev,
708 "HAL Version: %d Non Privileged function\n",
709 adapter->ahw->fw_hal_version);
710 adapter->nic_ops = &qlcnic_vf_ops;
711 } else
712 adapter->nic_ops = &qlcnic_ops;
713 }
714
715 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
716 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
717 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
718 {
719 switch (dev_id) {
720 case PCI_DEVICE_ID_QLOGIC_QLE824X:
721 *bar = QLCNIC_82XX_BAR0_LENGTH;
722 break;
723 case PCI_DEVICE_ID_QLOGIC_QLE834X:
724 *bar = QLCNIC_83XX_BAR0_LENGTH;
725 break;
726 default:
727 *bar = 0;
728 }
729 }
730
731 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
732 struct qlcnic_hardware_context *ahw)
733 {
734 u32 offset;
735 void __iomem *mem_ptr0 = NULL;
736 unsigned long mem_len, pci_len0 = 0, bar0_len;
737
738 /* remap phys address */
739 mem_len = pci_resource_len(pdev, 0);
740
741 qlcnic_get_bar_length(pdev->device, &bar0_len);
742 if (mem_len >= bar0_len) {
743
744 mem_ptr0 = pci_ioremap_bar(pdev, 0);
745 if (mem_ptr0 == NULL) {
746 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
747 return -EIO;
748 }
749 pci_len0 = mem_len;
750 } else {
751 return -EIO;
752 }
753
754 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
755
756 ahw->pci_base0 = mem_ptr0;
757 ahw->pci_len0 = pci_len0;
758 offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
759 qlcnic_get_ioaddr(ahw, offset);
760
761 return 0;
762 }
763
764 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
765 {
766 struct pci_dev *pdev = adapter->pdev;
767 int i, found = 0;
768
769 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
770 if (qlcnic_boards[i].vendor == pdev->vendor &&
771 qlcnic_boards[i].device == pdev->device &&
772 qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
773 qlcnic_boards[i].sub_device == pdev->subsystem_device) {
774 sprintf(name, "%pM: %s" ,
775 adapter->mac_addr,
776 qlcnic_boards[i].short_name);
777 found = 1;
778 break;
779 }
780
781 }
782
783 if (!found)
784 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
785 }
786
787 static void
788 qlcnic_check_options(struct qlcnic_adapter *adapter)
789 {
790 int err;
791 u32 fw_major, fw_minor, fw_build, prev_fw_version;
792 struct pci_dev *pdev = adapter->pdev;
793 struct qlcnic_hardware_context *ahw = adapter->ahw;
794 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
795
796 prev_fw_version = adapter->fw_version;
797
798 fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
799 fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
800 fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
801
802 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
803
804 err = qlcnic_get_board_info(adapter);
805 if (err) {
806 dev_err(&pdev->dev, "Error getting board config info.\n");
807 return;
808 }
809 if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
810 if (fw_dump->tmpl_hdr == NULL ||
811 adapter->fw_version > prev_fw_version) {
812 if (fw_dump->tmpl_hdr)
813 vfree(fw_dump->tmpl_hdr);
814 if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
815 dev_info(&pdev->dev,
816 "Supports FW dump capability\n");
817 }
818 }
819
820 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
821 QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
822
823 if (adapter->ahw->port_type == QLCNIC_XGBE) {
824 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
825 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
826 adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
827 } else {
828 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
829 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
830 }
831
832 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
833 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
834
835 } else if (adapter->ahw->port_type == QLCNIC_GBE) {
836 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
837 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
838 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
839 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
840 }
841
842 adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
843
844 adapter->num_txd = MAX_CMD_DESCRIPTORS;
845
846 adapter->max_rds_rings = MAX_RDS_RINGS;
847 }
848
849 static int
850 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
851 {
852 int err;
853 struct qlcnic_info nic_info;
854
855 memset(&nic_info, 0, sizeof(struct qlcnic_info));
856 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
857 if (err)
858 return err;
859
860 adapter->ahw->physical_port = (u8)nic_info.phys_port;
861 adapter->ahw->switch_mode = nic_info.switch_mode;
862 adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
863 adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
864 adapter->ahw->capabilities = nic_info.capabilities;
865
866 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
867 u32 temp;
868 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
869 adapter->ahw->capabilities2 = temp;
870 }
871 adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
872 adapter->ahw->max_mtu = nic_info.max_mtu;
873
874 /* Disable NPAR for 83XX */
875 if (qlcnic_83xx_check(adapter))
876 return err;
877
878 if (adapter->ahw->capabilities & BIT_6)
879 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
880 else
881 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
882
883 return err;
884 }
885
886 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
887 struct qlcnic_esw_func_cfg *esw_cfg)
888 {
889 if (esw_cfg->discard_tagged)
890 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
891 else
892 adapter->flags |= QLCNIC_TAGGING_ENABLED;
893
894 if (esw_cfg->vlan_id)
895 adapter->pvid = esw_cfg->vlan_id;
896 else
897 adapter->pvid = 0;
898 }
899
900 static int
901 qlcnic_vlan_rx_add(struct net_device *netdev, u16 vid)
902 {
903 struct qlcnic_adapter *adapter = netdev_priv(netdev);
904 set_bit(vid, adapter->vlans);
905 return 0;
906 }
907
908 static int
909 qlcnic_vlan_rx_del(struct net_device *netdev, u16 vid)
910 {
911 struct qlcnic_adapter *adapter = netdev_priv(netdev);
912
913 qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
914 clear_bit(vid, adapter->vlans);
915 return 0;
916 }
917
918 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
919 struct qlcnic_esw_func_cfg *esw_cfg)
920 {
921 adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
922 QLCNIC_PROMISC_DISABLED);
923
924 if (esw_cfg->mac_anti_spoof)
925 adapter->flags |= QLCNIC_MACSPOOF;
926
927 if (!esw_cfg->mac_override)
928 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
929
930 if (!esw_cfg->promisc_mode)
931 adapter->flags |= QLCNIC_PROMISC_DISABLED;
932
933 qlcnic_set_netdev_features(adapter, esw_cfg);
934 }
935
936 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
937 {
938 struct qlcnic_esw_func_cfg esw_cfg;
939
940 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
941 return 0;
942
943 esw_cfg.pci_func = adapter->ahw->pci_func;
944 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
945 return -EIO;
946 qlcnic_set_vlan_config(adapter, &esw_cfg);
947 qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
948
949 return 0;
950 }
951
952 static void
953 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
954 struct qlcnic_esw_func_cfg *esw_cfg)
955 {
956 struct net_device *netdev = adapter->netdev;
957 unsigned long features, vlan_features;
958
959 if (qlcnic_83xx_check(adapter))
960 return;
961
962 features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
963 NETIF_F_IPV6_CSUM | NETIF_F_GRO);
964 vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
965 NETIF_F_IPV6_CSUM);
966
967 if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
968 features |= (NETIF_F_TSO | NETIF_F_TSO6);
969 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
970 }
971
972 if (netdev->features & NETIF_F_LRO)
973 features |= NETIF_F_LRO;
974
975 if (esw_cfg->offload_flags & BIT_0) {
976 netdev->features |= features;
977 adapter->rx_csum = 1;
978 if (!(esw_cfg->offload_flags & BIT_1)) {
979 netdev->features &= ~NETIF_F_TSO;
980 features &= ~NETIF_F_TSO;
981 }
982 if (!(esw_cfg->offload_flags & BIT_2)) {
983 netdev->features &= ~NETIF_F_TSO6;
984 features &= ~NETIF_F_TSO6;
985 }
986 } else {
987 netdev->features &= ~features;
988 features &= ~features;
989 adapter->rx_csum = 0;
990 }
991
992 netdev->vlan_features = (features & vlan_features);
993 }
994
995 static int
996 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
997 {
998 u32 op_mode, priv_level;
999 int err = 0;
1000
1001 err = qlcnic_initialize_nic(adapter);
1002 if (err)
1003 return err;
1004
1005 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1006 return 0;
1007
1008 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1009 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1010
1011 if (op_mode == QLC_DEV_DRV_DEFAULT)
1012 priv_level = QLCNIC_MGMT_FUNC;
1013 else
1014 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1015
1016 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1017 if (priv_level == QLCNIC_MGMT_FUNC) {
1018 adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1019 err = qlcnic_init_pci_info(adapter);
1020 if (err)
1021 return err;
1022 /* Set privilege level for other functions */
1023 qlcnic_set_function_modes(adapter);
1024 dev_info(&adapter->pdev->dev,
1025 "HAL Version: %d, Management function\n",
1026 adapter->ahw->fw_hal_version);
1027 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1028 adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1029 dev_info(&adapter->pdev->dev,
1030 "HAL Version: %d, Privileged function\n",
1031 adapter->ahw->fw_hal_version);
1032 }
1033 }
1034
1035 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1036
1037 return err;
1038 }
1039
1040 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1041 {
1042 struct qlcnic_esw_func_cfg esw_cfg;
1043 struct qlcnic_npar_info *npar;
1044 u8 i;
1045
1046 if (adapter->need_fw_reset)
1047 return 0;
1048
1049 for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1050 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1051 esw_cfg.pci_func = adapter->npars[i].pci_func;
1052 esw_cfg.mac_override = BIT_0;
1053 esw_cfg.promisc_mode = BIT_0;
1054 if (qlcnic_82xx_check(adapter)) {
1055 esw_cfg.offload_flags = BIT_0;
1056 if (QLCNIC_IS_TSO_CAPABLE(adapter))
1057 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1058 }
1059 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1060 return -EIO;
1061 npar = &adapter->npars[i];
1062 npar->pvid = esw_cfg.vlan_id;
1063 npar->mac_override = esw_cfg.mac_override;
1064 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1065 npar->discard_tagged = esw_cfg.discard_tagged;
1066 npar->promisc_mode = esw_cfg.promisc_mode;
1067 npar->offload_flags = esw_cfg.offload_flags;
1068 }
1069
1070 return 0;
1071 }
1072
1073
1074 static int
1075 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1076 struct qlcnic_npar_info *npar, int pci_func)
1077 {
1078 struct qlcnic_esw_func_cfg esw_cfg;
1079 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1080 esw_cfg.pci_func = pci_func;
1081 esw_cfg.vlan_id = npar->pvid;
1082 esw_cfg.mac_override = npar->mac_override;
1083 esw_cfg.discard_tagged = npar->discard_tagged;
1084 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1085 esw_cfg.offload_flags = npar->offload_flags;
1086 esw_cfg.promisc_mode = npar->promisc_mode;
1087 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1088 return -EIO;
1089
1090 esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1091 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1092 return -EIO;
1093
1094 return 0;
1095 }
1096
1097 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1098 {
1099 int i, err;
1100 struct qlcnic_npar_info *npar;
1101 struct qlcnic_info nic_info;
1102 u8 pci_func;
1103
1104 if (qlcnic_82xx_check(adapter))
1105 if (!adapter->need_fw_reset)
1106 return 0;
1107
1108 /* Set the NPAR config data after FW reset */
1109 for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1110 npar = &adapter->npars[i];
1111 pci_func = npar->pci_func;
1112 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1113 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1114 if (err)
1115 return err;
1116 nic_info.min_tx_bw = npar->min_bw;
1117 nic_info.max_tx_bw = npar->max_bw;
1118 err = qlcnic_set_nic_info(adapter, &nic_info);
1119 if (err)
1120 return err;
1121
1122 if (npar->enable_pm) {
1123 err = qlcnic_config_port_mirroring(adapter,
1124 npar->dest_npar, 1,
1125 pci_func);
1126 if (err)
1127 return err;
1128 }
1129 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1130 if (err)
1131 return err;
1132 }
1133 return 0;
1134 }
1135
1136 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1137 {
1138 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1139 u32 npar_state;
1140
1141 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1142 return 0;
1143
1144 npar_state = QLC_SHARED_REG_RD32(adapter,
1145 QLCNIC_CRB_DEV_NPAR_STATE);
1146 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1147 msleep(1000);
1148 npar_state = QLC_SHARED_REG_RD32(adapter,
1149 QLCNIC_CRB_DEV_NPAR_STATE);
1150 }
1151 if (!npar_opt_timeo) {
1152 dev_err(&adapter->pdev->dev,
1153 "Waiting for NPAR state to opertional timeout\n");
1154 return -EIO;
1155 }
1156 return 0;
1157 }
1158
1159 static int
1160 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1161 {
1162 int err;
1163
1164 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1165 adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1166 return 0;
1167
1168 err = qlcnic_set_default_offload_settings(adapter);
1169 if (err)
1170 return err;
1171
1172 err = qlcnic_reset_npar_config(adapter);
1173 if (err)
1174 return err;
1175
1176 qlcnic_dev_set_npar_ready(adapter);
1177
1178 return err;
1179 }
1180
1181 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1182 {
1183 int err;
1184
1185 err = qlcnic_can_start_firmware(adapter);
1186 if (err < 0)
1187 return err;
1188 else if (!err)
1189 goto check_fw_status;
1190
1191 if (qlcnic_load_fw_file)
1192 qlcnic_request_firmware(adapter);
1193 else {
1194 err = qlcnic_check_flash_fw_ver(adapter);
1195 if (err)
1196 goto err_out;
1197
1198 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1199 }
1200
1201 err = qlcnic_need_fw_reset(adapter);
1202 if (err == 0)
1203 goto check_fw_status;
1204
1205 err = qlcnic_pinit_from_rom(adapter);
1206 if (err)
1207 goto err_out;
1208
1209 err = qlcnic_load_firmware(adapter);
1210 if (err)
1211 goto err_out;
1212
1213 qlcnic_release_firmware(adapter);
1214 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1215
1216 check_fw_status:
1217 err = qlcnic_check_fw_status(adapter);
1218 if (err)
1219 goto err_out;
1220
1221 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1222 qlcnic_idc_debug_info(adapter, 1);
1223 err = qlcnic_check_eswitch_mode(adapter);
1224 if (err) {
1225 dev_err(&adapter->pdev->dev,
1226 "Memory allocation failed for eswitch\n");
1227 goto err_out;
1228 }
1229 err = qlcnic_set_mgmt_operations(adapter);
1230 if (err)
1231 goto err_out;
1232
1233 qlcnic_check_options(adapter);
1234 adapter->need_fw_reset = 0;
1235
1236 qlcnic_release_firmware(adapter);
1237 return 0;
1238
1239 err_out:
1240 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1241 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1242
1243 qlcnic_release_firmware(adapter);
1244 return err;
1245 }
1246
1247 static int
1248 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1249 {
1250 irq_handler_t handler;
1251 struct qlcnic_host_sds_ring *sds_ring;
1252 struct qlcnic_host_tx_ring *tx_ring;
1253 int err, ring;
1254
1255 unsigned long flags = 0;
1256 struct net_device *netdev = adapter->netdev;
1257 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1258
1259 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1260 if (qlcnic_82xx_check(adapter))
1261 handler = qlcnic_tmp_intr;
1262 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1263 flags |= IRQF_SHARED;
1264
1265 } else {
1266 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1267 handler = qlcnic_msix_intr;
1268 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1269 handler = qlcnic_msi_intr;
1270 else {
1271 flags |= IRQF_SHARED;
1272 if (qlcnic_82xx_check(adapter))
1273 handler = qlcnic_intr;
1274 else
1275 handler = qlcnic_83xx_intr;
1276 }
1277 }
1278 adapter->irq = netdev->irq;
1279
1280 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1281 if (qlcnic_82xx_check(adapter) ||
1282 (qlcnic_83xx_check(adapter) &&
1283 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1284 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1285 sds_ring = &recv_ctx->sds_rings[ring];
1286 snprintf(sds_ring->name, sizeof(int) + IFNAMSIZ,
1287 "%s[%d]", netdev->name, ring);
1288 err = request_irq(sds_ring->irq, handler, flags,
1289 sds_ring->name, sds_ring);
1290 if (err)
1291 return err;
1292 }
1293 }
1294 if (qlcnic_83xx_check(adapter) &&
1295 (adapter->flags & QLCNIC_MSIX_ENABLED)) {
1296 handler = qlcnic_msix_tx_intr;
1297 for (ring = 0; ring < adapter->max_drv_tx_rings;
1298 ring++) {
1299 tx_ring = &adapter->tx_ring[ring];
1300 snprintf(tx_ring->name, sizeof(int) + IFNAMSIZ,
1301 "%s[%d]", netdev->name,
1302 adapter->max_sds_rings + ring);
1303 err = request_irq(tx_ring->irq, handler, flags,
1304 tx_ring->name, tx_ring);
1305 if (err)
1306 return err;
1307 }
1308 }
1309 }
1310 return 0;
1311 }
1312
1313 static void
1314 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1315 {
1316 int ring;
1317 struct qlcnic_host_sds_ring *sds_ring;
1318 struct qlcnic_host_tx_ring *tx_ring;
1319
1320 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1321
1322 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1323 if (qlcnic_82xx_check(adapter) ||
1324 (qlcnic_83xx_check(adapter) &&
1325 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1326 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1327 sds_ring = &recv_ctx->sds_rings[ring];
1328 free_irq(sds_ring->irq, sds_ring);
1329 }
1330 }
1331 if (qlcnic_83xx_check(adapter)) {
1332 for (ring = 0; ring < adapter->max_drv_tx_rings;
1333 ring++) {
1334 tx_ring = &adapter->tx_ring[ring];
1335 if (tx_ring->irq)
1336 free_irq(tx_ring->irq, tx_ring);
1337 }
1338 }
1339 }
1340 }
1341
1342 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1343 {
1344 u32 capab = 0;
1345
1346 if (qlcnic_82xx_check(adapter)) {
1347 if (adapter->ahw->capabilities2 &
1348 QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1349 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1350 } else {
1351 capab = adapter->ahw->capabilities;
1352 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1353 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1354 }
1355 }
1356
1357 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1358 {
1359 int ring;
1360 struct qlcnic_host_rds_ring *rds_ring;
1361
1362 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1363 return -EIO;
1364
1365 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1366 return 0;
1367 if (qlcnic_set_eswitch_port_config(adapter))
1368 return -EIO;
1369 qlcnic_get_lro_mss_capability(adapter);
1370
1371 if (qlcnic_fw_create_ctx(adapter))
1372 return -EIO;
1373
1374 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1375 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1376 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1377 }
1378
1379 qlcnic_set_multi(netdev);
1380 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1381
1382 adapter->ahw->linkup = 0;
1383
1384 if (adapter->max_sds_rings > 1)
1385 qlcnic_config_rss(adapter, 1);
1386
1387 qlcnic_config_intr_coalesce(adapter);
1388
1389 if (netdev->features & NETIF_F_LRO)
1390 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1391
1392 qlcnic_napi_enable(adapter);
1393
1394 qlcnic_linkevent_request(adapter, 1);
1395
1396 adapter->ahw->reset_context = 0;
1397 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1398 return 0;
1399 }
1400
1401 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1402 {
1403 int err = 0;
1404
1405 rtnl_lock();
1406 if (netif_running(netdev))
1407 err = __qlcnic_up(adapter, netdev);
1408 rtnl_unlock();
1409
1410 return err;
1411 }
1412
1413 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1414 {
1415 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1416 return;
1417
1418 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1419 return;
1420
1421 smp_mb();
1422 spin_lock(&adapter->tx_clean_lock);
1423 netif_carrier_off(netdev);
1424 netif_tx_disable(netdev);
1425
1426 qlcnic_free_mac_list(adapter);
1427
1428 if (adapter->fhash.fnum)
1429 qlcnic_delete_lb_filters(adapter);
1430
1431 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1432
1433 qlcnic_napi_disable(adapter);
1434
1435 qlcnic_fw_destroy_ctx(adapter);
1436 adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1437
1438 qlcnic_reset_rx_buffers_list(adapter);
1439 qlcnic_release_tx_buffers(adapter);
1440 spin_unlock(&adapter->tx_clean_lock);
1441 }
1442
1443 /* Usage: During suspend and firmware recovery module */
1444
1445 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1446 {
1447 rtnl_lock();
1448 if (netif_running(netdev))
1449 __qlcnic_down(adapter, netdev);
1450 rtnl_unlock();
1451
1452 }
1453
1454 int
1455 qlcnic_attach(struct qlcnic_adapter *adapter)
1456 {
1457 struct net_device *netdev = adapter->netdev;
1458 struct pci_dev *pdev = adapter->pdev;
1459 int err;
1460
1461 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1462 return 0;
1463
1464 err = qlcnic_napi_add(adapter, netdev);
1465 if (err)
1466 return err;
1467
1468 err = qlcnic_alloc_sw_resources(adapter);
1469 if (err) {
1470 dev_err(&pdev->dev, "Error in setting sw resources\n");
1471 goto err_out_napi_del;
1472 }
1473
1474 err = qlcnic_alloc_hw_resources(adapter);
1475 if (err) {
1476 dev_err(&pdev->dev, "Error in setting hw resources\n");
1477 goto err_out_free_sw;
1478 }
1479
1480 err = qlcnic_request_irq(adapter);
1481 if (err) {
1482 dev_err(&pdev->dev, "failed to setup interrupt\n");
1483 goto err_out_free_hw;
1484 }
1485
1486 qlcnic_create_sysfs_entries(adapter);
1487
1488 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1489 return 0;
1490
1491 err_out_free_hw:
1492 qlcnic_free_hw_resources(adapter);
1493 err_out_free_sw:
1494 qlcnic_free_sw_resources(adapter);
1495 err_out_napi_del:
1496 qlcnic_napi_del(adapter);
1497 return err;
1498 }
1499
1500 void qlcnic_detach(struct qlcnic_adapter *adapter)
1501 {
1502 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1503 return;
1504
1505 qlcnic_remove_sysfs_entries(adapter);
1506
1507 qlcnic_free_hw_resources(adapter);
1508 qlcnic_release_rx_buffers(adapter);
1509 qlcnic_free_irq(adapter);
1510 qlcnic_napi_del(adapter);
1511 qlcnic_free_sw_resources(adapter);
1512
1513 adapter->is_up = 0;
1514 }
1515
1516 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1517 {
1518 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1519 struct qlcnic_host_sds_ring *sds_ring;
1520 int ring;
1521
1522 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1523 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1524 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1525 sds_ring = &adapter->recv_ctx->sds_rings[ring];
1526 qlcnic_disable_int(sds_ring);
1527 }
1528 }
1529
1530 qlcnic_fw_destroy_ctx(adapter);
1531
1532 qlcnic_detach(adapter);
1533
1534 adapter->ahw->diag_test = 0;
1535 adapter->max_sds_rings = max_sds_rings;
1536
1537 if (qlcnic_attach(adapter))
1538 goto out;
1539
1540 if (netif_running(netdev))
1541 __qlcnic_up(adapter, netdev);
1542 out:
1543 netif_device_attach(netdev);
1544 }
1545
1546 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1547 {
1548 int err = 0;
1549 adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1550 GFP_KERNEL);
1551 if (!adapter->recv_ctx) {
1552 err = -ENOMEM;
1553 goto err_out;
1554 }
1555 /* Initialize interrupt coalesce parameters */
1556 adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1557 adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1558 adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1559 /* clear stats */
1560 memset(&adapter->stats, 0, sizeof(adapter->stats));
1561 err_out:
1562 return err;
1563 }
1564
1565 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1566 {
1567 kfree(adapter->recv_ctx);
1568 adapter->recv_ctx = NULL;
1569
1570 if (adapter->ahw->fw_dump.tmpl_hdr) {
1571 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1572 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1573 }
1574
1575 kfree(adapter->ahw->reset.buff);
1576 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1577 }
1578
1579 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1580 {
1581 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1582 struct qlcnic_host_sds_ring *sds_ring;
1583 struct qlcnic_host_rds_ring *rds_ring;
1584 int ring;
1585 int ret;
1586
1587 netif_device_detach(netdev);
1588
1589 if (netif_running(netdev))
1590 __qlcnic_down(adapter, netdev);
1591
1592 qlcnic_detach(adapter);
1593
1594 adapter->max_sds_rings = 1;
1595 adapter->ahw->diag_test = test;
1596 adapter->ahw->linkup = 0;
1597
1598 ret = qlcnic_attach(adapter);
1599 if (ret) {
1600 netif_device_attach(netdev);
1601 return ret;
1602 }
1603
1604 ret = qlcnic_fw_create_ctx(adapter);
1605 if (ret) {
1606 qlcnic_detach(adapter);
1607 netif_device_attach(netdev);
1608 return ret;
1609 }
1610
1611 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1612 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1613 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1614 }
1615
1616 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1617 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1618 sds_ring = &adapter->recv_ctx->sds_rings[ring];
1619 qlcnic_enable_int(sds_ring);
1620 }
1621 }
1622
1623 if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1624 adapter->ahw->loopback_state = 0;
1625 qlcnic_linkevent_request(adapter, 1);
1626 }
1627
1628 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1629
1630 return 0;
1631 }
1632
1633 /* Reset context in hardware only */
1634 static int
1635 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1636 {
1637 struct net_device *netdev = adapter->netdev;
1638
1639 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1640 return -EBUSY;
1641
1642 netif_device_detach(netdev);
1643
1644 qlcnic_down(adapter, netdev);
1645
1646 qlcnic_up(adapter, netdev);
1647
1648 netif_device_attach(netdev);
1649
1650 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1651 dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1652 return 0;
1653 }
1654
1655 int
1656 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1657 {
1658 int err = 0;
1659 struct net_device *netdev = adapter->netdev;
1660
1661 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1662 return -EBUSY;
1663
1664 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1665
1666 netif_device_detach(netdev);
1667
1668 if (netif_running(netdev))
1669 __qlcnic_down(adapter, netdev);
1670
1671 qlcnic_detach(adapter);
1672
1673 if (netif_running(netdev)) {
1674 err = qlcnic_attach(adapter);
1675 if (!err) {
1676 __qlcnic_up(adapter, netdev);
1677 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1678 }
1679 }
1680
1681 netif_device_attach(netdev);
1682 }
1683
1684 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1685 return err;
1686 }
1687
1688 static int
1689 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
1690 int pci_using_dac)
1691 {
1692 int err;
1693 struct pci_dev *pdev = adapter->pdev;
1694
1695 adapter->rx_csum = 1;
1696 adapter->ahw->mc_enabled = 0;
1697 adapter->ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
1698
1699 netdev->netdev_ops = &qlcnic_netdev_ops;
1700 netdev->watchdog_timeo = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
1701
1702 qlcnic_change_mtu(netdev, netdev->mtu);
1703
1704 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1705
1706 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
1707 NETIF_F_IPV6_CSUM | NETIF_F_GRO |
1708 NETIF_F_HW_VLAN_RX);
1709 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1710 NETIF_F_IPV6_CSUM);
1711
1712 if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1713 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1714 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1715 }
1716
1717 if (pci_using_dac) {
1718 netdev->features |= NETIF_F_HIGHDMA;
1719 netdev->vlan_features |= NETIF_F_HIGHDMA;
1720 }
1721
1722 if (qlcnic_vlan_tx_check(adapter))
1723 netdev->features |= (NETIF_F_HW_VLAN_TX);
1724
1725 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1726 netdev->features |= NETIF_F_LRO;
1727
1728 netdev->hw_features = netdev->features;
1729 netdev->irq = adapter->msix_entries[0].vector;
1730
1731 err = register_netdev(netdev);
1732 if (err) {
1733 dev_err(&pdev->dev, "failed to register net device\n");
1734 return err;
1735 }
1736
1737 return 0;
1738 }
1739
1740 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
1741 {
1742 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1743 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1744 *pci_using_dac = 1;
1745 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1746 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1747 *pci_using_dac = 0;
1748 else {
1749 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1750 return -EIO;
1751 }
1752
1753 return 0;
1754 }
1755
1756 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
1757 {
1758 int ring;
1759 struct qlcnic_host_tx_ring *tx_ring;
1760
1761 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1762 tx_ring = &adapter->tx_ring[ring];
1763 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
1764 vfree(tx_ring->cmd_buf_arr);
1765 tx_ring->cmd_buf_arr = NULL;
1766 }
1767 }
1768 if (adapter->tx_ring != NULL)
1769 kfree(adapter->tx_ring);
1770 }
1771
1772 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
1773 struct net_device *netdev)
1774 {
1775 int ring, vector, index;
1776 struct qlcnic_host_tx_ring *tx_ring;
1777 struct qlcnic_cmd_buffer *cmd_buf_arr;
1778
1779 tx_ring = kcalloc(adapter->max_drv_tx_rings,
1780 sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
1781 if (tx_ring == NULL)
1782 return -ENOMEM;
1783
1784 adapter->tx_ring = tx_ring;
1785
1786 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1787 tx_ring = &adapter->tx_ring[ring];
1788 tx_ring->num_desc = adapter->num_txd;
1789 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
1790 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
1791 if (cmd_buf_arr == NULL) {
1792 qlcnic_free_tx_rings(adapter);
1793 return -ENOMEM;
1794 }
1795 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
1796 tx_ring->cmd_buf_arr = cmd_buf_arr;
1797 }
1798
1799 if (qlcnic_83xx_check(adapter)) {
1800 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1801 tx_ring = &adapter->tx_ring[ring];
1802 tx_ring->adapter = adapter;
1803 if (adapter->flags & QLCNIC_MSIX_ENABLED) {
1804 index = adapter->max_sds_rings + ring;
1805 vector = adapter->msix_entries[index].vector;
1806 tx_ring->irq = vector;
1807 }
1808 }
1809 }
1810 return 0;
1811 }
1812
1813 static int
1814 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1815 {
1816 struct net_device *netdev = NULL;
1817 struct qlcnic_adapter *adapter = NULL;
1818 struct qlcnic_hardware_context *ahw;
1819 int err, pci_using_dac = -1;
1820 u32 capab2;
1821 char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
1822
1823 err = pci_enable_device(pdev);
1824 if (err)
1825 return err;
1826
1827 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1828 err = -ENODEV;
1829 goto err_out_disable_pdev;
1830 }
1831
1832 err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1833 if (err)
1834 goto err_out_disable_pdev;
1835
1836 err = pci_request_regions(pdev, qlcnic_driver_name);
1837 if (err)
1838 goto err_out_disable_pdev;
1839
1840 pci_set_master(pdev);
1841 pci_enable_pcie_error_reporting(pdev);
1842
1843 ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
1844 if (!ahw)
1845 goto err_out_free_res;
1846
1847 if (ent->device == PCI_DEVICE_ID_QLOGIC_QLE824X) {
1848 ahw->hw_ops = &qlcnic_hw_ops;
1849 ahw->reg_tbl = (u32 *)qlcnic_reg_tbl;
1850 } else if (ent->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1851 qlcnic_83xx_register_map(ahw);
1852 } else {
1853 goto err_out_free_hw_res;
1854 }
1855
1856 err = qlcnic_setup_pci_map(pdev, ahw);
1857 if (err)
1858 goto err_out_free_hw_res;
1859
1860 netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1861 if (!netdev) {
1862 err = -ENOMEM;
1863 goto err_out_iounmap;
1864 }
1865
1866 SET_NETDEV_DEV(netdev, &pdev->dev);
1867
1868 adapter = netdev_priv(netdev);
1869 adapter->netdev = netdev;
1870 adapter->pdev = pdev;
1871 adapter->ahw = ahw;
1872
1873 adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
1874 if (adapter->qlcnic_wq == NULL) {
1875 dev_err(&pdev->dev, "Failed to create workqueue\n");
1876 goto err_out_free_netdev;
1877 }
1878
1879 err = qlcnic_alloc_adapter_resources(adapter);
1880 if (err)
1881 goto err_out_free_netdev;
1882
1883 adapter->dev_rst_time = jiffies;
1884 adapter->ahw->revision_id = pdev->revision;
1885 if (qlcnic_mac_learn == FDB_MAC_LEARN)
1886 adapter->fdb_mac_learn = true;
1887 else if (qlcnic_mac_learn == DRV_MAC_LEARN)
1888 adapter->drv_mac_learn = true;
1889 adapter->max_drv_tx_rings = 1;
1890
1891 rwlock_init(&adapter->ahw->crb_lock);
1892 mutex_init(&adapter->ahw->mem_lock);
1893
1894 spin_lock_init(&adapter->tx_clean_lock);
1895 INIT_LIST_HEAD(&adapter->mac_list);
1896
1897 if (qlcnic_82xx_check(adapter)) {
1898 qlcnic_check_vf(adapter, ent);
1899 adapter->portnum = adapter->ahw->pci_func;
1900 err = qlcnic_start_firmware(adapter);
1901 if (err) {
1902 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1903 goto err_out_free_hw;
1904 }
1905
1906 err = qlcnic_setup_idc_param(adapter);
1907 if (err)
1908 goto err_out_free_hw;
1909
1910 adapter->flags |= QLCNIC_NEED_FLR;
1911 } else if (qlcnic_83xx_check(adapter)) {
1912 qlcnic_83xx_check_vf(adapter, ent);
1913 adapter->portnum = adapter->ahw->pci_func;
1914 err = qlcnic_83xx_init(adapter);
1915 if (err) {
1916 dev_err(&pdev->dev, "%s: failed\n", __func__);
1917 goto err_out_free_hw;
1918 }
1919 } else {
1920 dev_err(&pdev->dev,
1921 "%s: failed. Please Reboot\n", __func__);
1922 goto err_out_free_hw;
1923 }
1924
1925 if (qlcnic_read_mac_addr(adapter))
1926 dev_warn(&pdev->dev, "failed to read mac addr\n");
1927
1928 if (adapter->portnum == 0) {
1929 qlcnic_get_board_name(adapter, board_name);
1930
1931 pr_info("%s: %s Board Chip rev 0x%x\n",
1932 module_name(THIS_MODULE),
1933 board_name, adapter->ahw->revision_id);
1934 }
1935 err = qlcnic_setup_intr(adapter, 0);
1936 if (err) {
1937 dev_err(&pdev->dev, "Failed to setup interrupt\n");
1938 goto err_out_disable_msi;
1939 }
1940
1941 if (qlcnic_83xx_check(adapter)) {
1942 err = qlcnic_83xx_setup_mbx_intr(adapter);
1943 if (err)
1944 goto err_out_disable_msi;
1945 }
1946
1947 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1948 if (err)
1949 goto err_out_disable_mbx_intr;
1950
1951 if (qlcnic_82xx_check(adapter)) {
1952 if (ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1953 capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
1954 if (capab2 & QLCNIC_FW_CAPABILITY_2_OCBB)
1955 qlcnic_fw_cmd_set_drv_version(adapter);
1956 }
1957 }
1958
1959 pci_set_drvdata(pdev, adapter);
1960
1961 if (qlcnic_82xx_check(adapter))
1962 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
1963 FW_POLL_DELAY);
1964
1965 switch (adapter->ahw->port_type) {
1966 case QLCNIC_GBE:
1967 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1968 adapter->netdev->name);
1969 break;
1970 case QLCNIC_XGBE:
1971 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1972 adapter->netdev->name);
1973 break;
1974 }
1975
1976 if (qlcnic_get_act_pci_func(adapter))
1977 goto err_out_disable_mbx_intr;
1978
1979 if (adapter->drv_mac_learn)
1980 qlcnic_alloc_lb_filters_mem(adapter);
1981
1982 qlcnic_add_sysfs(adapter);
1983
1984 return 0;
1985
1986 err_out_disable_mbx_intr:
1987 if (qlcnic_83xx_check(adapter))
1988 qlcnic_83xx_free_mbx_intr(adapter);
1989
1990 err_out_disable_msi:
1991 qlcnic_teardown_intr(adapter);
1992 qlcnic_cancel_idc_work(adapter);
1993 qlcnic_clr_all_drv_state(adapter, 0);
1994
1995 err_out_free_hw:
1996 qlcnic_free_adapter_resources(adapter);
1997
1998 err_out_free_netdev:
1999 free_netdev(netdev);
2000
2001 err_out_iounmap:
2002 qlcnic_cleanup_pci_map(adapter);
2003
2004 err_out_free_hw_res:
2005 kfree(ahw);
2006
2007 err_out_free_res:
2008 pci_release_regions(pdev);
2009
2010 err_out_disable_pdev:
2011 pci_set_drvdata(pdev, NULL);
2012 pci_disable_device(pdev);
2013 return err;
2014 }
2015
2016 static void qlcnic_remove(struct pci_dev *pdev)
2017 {
2018 struct qlcnic_adapter *adapter;
2019 struct net_device *netdev;
2020 struct qlcnic_hardware_context *ahw;
2021
2022 adapter = pci_get_drvdata(pdev);
2023 if (adapter == NULL)
2024 return;
2025
2026 netdev = adapter->netdev;
2027
2028 qlcnic_cancel_idc_work(adapter);
2029 ahw = adapter->ahw;
2030
2031 unregister_netdev(netdev);
2032
2033 if (qlcnic_83xx_check(adapter)) {
2034 qlcnic_83xx_free_mbx_intr(adapter);
2035 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2036 cancel_delayed_work_sync(&adapter->idc_aen_work);
2037 }
2038
2039 qlcnic_detach(adapter);
2040
2041 if (adapter->npars != NULL)
2042 kfree(adapter->npars);
2043 if (adapter->eswitch != NULL)
2044 kfree(adapter->eswitch);
2045
2046 if (qlcnic_82xx_check(adapter))
2047 qlcnic_clr_all_drv_state(adapter, 0);
2048
2049 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2050
2051 qlcnic_free_lb_filters_mem(adapter);
2052
2053 qlcnic_teardown_intr(adapter);
2054
2055 qlcnic_remove_sysfs(adapter);
2056
2057 qlcnic_cleanup_pci_map(adapter);
2058
2059 qlcnic_release_firmware(adapter);
2060
2061 pci_disable_pcie_error_reporting(pdev);
2062 pci_release_regions(pdev);
2063 pci_disable_device(pdev);
2064 pci_set_drvdata(pdev, NULL);
2065
2066 if (adapter->qlcnic_wq) {
2067 destroy_workqueue(adapter->qlcnic_wq);
2068 adapter->qlcnic_wq = NULL;
2069 }
2070 qlcnic_free_adapter_resources(adapter);
2071 kfree(ahw);
2072 free_netdev(netdev);
2073 }
2074 static int __qlcnic_shutdown(struct pci_dev *pdev)
2075 {
2076 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2077 struct net_device *netdev = adapter->netdev;
2078 int retval;
2079
2080 netif_device_detach(netdev);
2081
2082 qlcnic_cancel_idc_work(adapter);
2083
2084 if (netif_running(netdev))
2085 qlcnic_down(adapter, netdev);
2086
2087 if (qlcnic_82xx_check(adapter))
2088 qlcnic_clr_all_drv_state(adapter, 0);
2089
2090 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2091
2092 retval = pci_save_state(pdev);
2093 if (retval)
2094 return retval;
2095 if (qlcnic_82xx_check(adapter)) {
2096 if (qlcnic_wol_supported(adapter)) {
2097 pci_enable_wake(pdev, PCI_D3cold, 1);
2098 pci_enable_wake(pdev, PCI_D3hot, 1);
2099 }
2100 }
2101
2102 return 0;
2103 }
2104
2105 static void qlcnic_shutdown(struct pci_dev *pdev)
2106 {
2107 if (__qlcnic_shutdown(pdev))
2108 return;
2109
2110 pci_disable_device(pdev);
2111 }
2112
2113 #ifdef CONFIG_PM
2114 static int
2115 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2116 {
2117 int retval;
2118
2119 retval = __qlcnic_shutdown(pdev);
2120 if (retval)
2121 return retval;
2122
2123 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2124 return 0;
2125 }
2126
2127 static int
2128 qlcnic_resume(struct pci_dev *pdev)
2129 {
2130 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2131 struct net_device *netdev = adapter->netdev;
2132 int err;
2133
2134 err = pci_enable_device(pdev);
2135 if (err)
2136 return err;
2137
2138 pci_set_power_state(pdev, PCI_D0);
2139 pci_set_master(pdev);
2140 pci_restore_state(pdev);
2141
2142 err = qlcnic_start_firmware(adapter);
2143 if (err) {
2144 dev_err(&pdev->dev, "failed to start firmware\n");
2145 return err;
2146 }
2147
2148 if (netif_running(netdev)) {
2149 err = qlcnic_up(adapter, netdev);
2150 if (err)
2151 goto done;
2152
2153 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2154 }
2155 done:
2156 netif_device_attach(netdev);
2157 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2158 return 0;
2159 }
2160 #endif
2161
2162 static int qlcnic_open(struct net_device *netdev)
2163 {
2164 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2165 int err;
2166
2167 netif_carrier_off(netdev);
2168
2169 err = qlcnic_attach(adapter);
2170 if (err)
2171 return err;
2172
2173 err = __qlcnic_up(adapter, netdev);
2174 if (err)
2175 goto err_out;
2176
2177 netif_start_queue(netdev);
2178
2179 return 0;
2180
2181 err_out:
2182 qlcnic_detach(adapter);
2183 return err;
2184 }
2185
2186 /*
2187 * qlcnic_close - Disables a network interface entry point
2188 */
2189 static int qlcnic_close(struct net_device *netdev)
2190 {
2191 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2192
2193 __qlcnic_down(adapter, netdev);
2194
2195 return 0;
2196 }
2197
2198 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2199 {
2200 void *head;
2201 int i;
2202 struct net_device *netdev = adapter->netdev;
2203 u32 filter_size = 0;
2204 u16 act_pci_func = 0;
2205
2206 if (adapter->fhash.fmax && adapter->fhash.fhead)
2207 return;
2208
2209 act_pci_func = adapter->ahw->act_pci_func;
2210 spin_lock_init(&adapter->mac_learn_lock);
2211
2212 if (qlcnic_82xx_check(adapter)) {
2213 filter_size = QLCNIC_LB_MAX_FILTERS;
2214 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2215 } else {
2216 filter_size = QLC_83XX_LB_MAX_FILTERS;
2217 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2218 }
2219
2220 head = kcalloc(adapter->fhash.fbucket_size,
2221 sizeof(struct hlist_head), GFP_ATOMIC);
2222
2223 if (!head)
2224 return;
2225
2226 adapter->fhash.fmax = (filter_size / act_pci_func);
2227 adapter->fhash.fhead = head;
2228
2229 netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2230 act_pci_func, adapter->fhash.fmax);
2231
2232 for (i = 0; i < adapter->fhash.fbucket_size; i++)
2233 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2234 }
2235
2236 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2237 {
2238 if (adapter->fhash.fmax && adapter->fhash.fhead)
2239 kfree(adapter->fhash.fhead);
2240
2241 adapter->fhash.fhead = NULL;
2242 adapter->fhash.fmax = 0;
2243 }
2244
2245 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2246 {
2247 struct net_device *netdev = adapter->netdev;
2248 u32 temp_state, temp_val, temp = 0;
2249 int rv = 0;
2250
2251 if (qlcnic_83xx_check(adapter))
2252 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2253
2254 if (qlcnic_82xx_check(adapter))
2255 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2256
2257 temp_state = qlcnic_get_temp_state(temp);
2258 temp_val = qlcnic_get_temp_val(temp);
2259
2260 if (temp_state == QLCNIC_TEMP_PANIC) {
2261 dev_err(&netdev->dev,
2262 "Device temperature %d degrees C exceeds"
2263 " maximum allowed. Hardware has been shut down.\n",
2264 temp_val);
2265 rv = 1;
2266 } else if (temp_state == QLCNIC_TEMP_WARN) {
2267 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2268 dev_err(&netdev->dev,
2269 "Device temperature %d degrees C "
2270 "exceeds operating range."
2271 " Immediate action needed.\n",
2272 temp_val);
2273 }
2274 } else {
2275 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2276 dev_info(&netdev->dev,
2277 "Device temperature is now %d degrees C"
2278 " in normal range.\n", temp_val);
2279 }
2280 }
2281 adapter->ahw->temp = temp_state;
2282 return rv;
2283 }
2284
2285 static void qlcnic_tx_timeout(struct net_device *netdev)
2286 {
2287 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2288
2289 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2290 return;
2291
2292 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2293
2294 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2295 adapter->need_fw_reset = 1;
2296 else
2297 adapter->ahw->reset_context = 1;
2298 }
2299
2300 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2301 {
2302 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2303 struct net_device_stats *stats = &netdev->stats;
2304
2305 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2306 stats->tx_packets = adapter->stats.xmitfinished;
2307 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2308 stats->tx_bytes = adapter->stats.txbytes;
2309 stats->rx_dropped = adapter->stats.rxdropped;
2310 stats->tx_dropped = adapter->stats.txdropped;
2311
2312 return stats;
2313 }
2314
2315 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2316 {
2317 u32 status;
2318
2319 status = readl(adapter->isr_int_vec);
2320
2321 if (!(status & adapter->ahw->int_vec_bit))
2322 return IRQ_NONE;
2323
2324 /* check interrupt state machine, to be sure */
2325 status = readl(adapter->crb_int_state_reg);
2326 if (!ISR_LEGACY_INT_TRIGGERED(status))
2327 return IRQ_NONE;
2328
2329 writel(0xffffffff, adapter->tgt_status_reg);
2330 /* read twice to ensure write is flushed */
2331 readl(adapter->isr_int_vec);
2332 readl(adapter->isr_int_vec);
2333
2334 return IRQ_HANDLED;
2335 }
2336
2337 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2338 {
2339 struct qlcnic_host_sds_ring *sds_ring = data;
2340 struct qlcnic_adapter *adapter = sds_ring->adapter;
2341
2342 if (adapter->flags & QLCNIC_MSIX_ENABLED)
2343 goto done;
2344 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2345 writel(0xffffffff, adapter->tgt_status_reg);
2346 goto done;
2347 }
2348
2349 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2350 return IRQ_NONE;
2351
2352 done:
2353 adapter->ahw->diag_cnt++;
2354 qlcnic_enable_int(sds_ring);
2355 return IRQ_HANDLED;
2356 }
2357
2358 static irqreturn_t qlcnic_intr(int irq, void *data)
2359 {
2360 struct qlcnic_host_sds_ring *sds_ring = data;
2361 struct qlcnic_adapter *adapter = sds_ring->adapter;
2362
2363 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2364 return IRQ_NONE;
2365
2366 napi_schedule(&sds_ring->napi);
2367
2368 return IRQ_HANDLED;
2369 }
2370
2371 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2372 {
2373 struct qlcnic_host_sds_ring *sds_ring = data;
2374 struct qlcnic_adapter *adapter = sds_ring->adapter;
2375
2376 /* clear interrupt */
2377 writel(0xffffffff, adapter->tgt_status_reg);
2378
2379 napi_schedule(&sds_ring->napi);
2380 return IRQ_HANDLED;
2381 }
2382
2383 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2384 {
2385 struct qlcnic_host_sds_ring *sds_ring = data;
2386
2387 napi_schedule(&sds_ring->napi);
2388 return IRQ_HANDLED;
2389 }
2390
2391 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2392 {
2393 struct qlcnic_host_tx_ring *tx_ring = data;
2394
2395 napi_schedule(&tx_ring->napi);
2396 return IRQ_HANDLED;
2397 }
2398
2399 #ifdef CONFIG_NET_POLL_CONTROLLER
2400 static void qlcnic_poll_controller(struct net_device *netdev)
2401 {
2402 int ring;
2403 struct qlcnic_host_sds_ring *sds_ring;
2404 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2405 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2406
2407 disable_irq(adapter->irq);
2408 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2409 sds_ring = &recv_ctx->sds_rings[ring];
2410 qlcnic_intr(adapter->irq, sds_ring);
2411 }
2412 enable_irq(adapter->irq);
2413 }
2414 #endif
2415
2416 static void
2417 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2418 {
2419 u32 val;
2420
2421 val = adapter->portnum & 0xf;
2422 val |= encoding << 7;
2423 val |= (jiffies - adapter->dev_rst_time) << 8;
2424
2425 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2426 adapter->dev_rst_time = jiffies;
2427 }
2428
2429 static int
2430 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2431 {
2432 u32 val;
2433
2434 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2435 state != QLCNIC_DEV_NEED_QUISCENT);
2436
2437 if (qlcnic_api_lock(adapter))
2438 return -EIO;
2439
2440 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2441
2442 if (state == QLCNIC_DEV_NEED_RESET)
2443 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2444 else if (state == QLCNIC_DEV_NEED_QUISCENT)
2445 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2446
2447 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2448
2449 qlcnic_api_unlock(adapter);
2450
2451 return 0;
2452 }
2453
2454 static int
2455 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2456 {
2457 u32 val;
2458
2459 if (qlcnic_api_lock(adapter))
2460 return -EBUSY;
2461
2462 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2463 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2464 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2465
2466 qlcnic_api_unlock(adapter);
2467
2468 return 0;
2469 }
2470
2471 static void
2472 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2473 {
2474 u32 val;
2475
2476 if (qlcnic_api_lock(adapter))
2477 goto err;
2478
2479 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2480 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2481 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2482
2483 if (failed) {
2484 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2485 QLCNIC_DEV_FAILED);
2486 dev_info(&adapter->pdev->dev,
2487 "Device state set to Failed. Please Reboot\n");
2488 } else if (!(val & 0x11111111))
2489 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2490 QLCNIC_DEV_COLD);
2491
2492 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2493 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2494 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2495
2496 qlcnic_api_unlock(adapter);
2497 err:
2498 adapter->fw_fail_cnt = 0;
2499 adapter->flags &= ~QLCNIC_FW_HANG;
2500 clear_bit(__QLCNIC_START_FW, &adapter->state);
2501 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2502 }
2503
2504 /* Grab api lock, before checking state */
2505 static int
2506 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2507 {
2508 int act, state, active_mask;
2509 struct qlcnic_hardware_context *ahw = adapter->ahw;
2510
2511 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2512 act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2513
2514 if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2515 active_mask = (~(1 << (ahw->pci_func * 4)));
2516 act = act & active_mask;
2517 }
2518
2519 if (((state & 0x11111111) == (act & 0x11111111)) ||
2520 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2521 return 0;
2522 else
2523 return 1;
2524 }
2525
2526 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2527 {
2528 u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2529
2530 if (val != QLCNIC_DRV_IDC_VER) {
2531 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2532 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2533 }
2534
2535 return 0;
2536 }
2537
2538 static int
2539 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2540 {
2541 u32 val, prev_state;
2542 u8 dev_init_timeo = adapter->dev_init_timeo;
2543 u8 portnum = adapter->portnum;
2544 u8 ret;
2545
2546 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2547 return 1;
2548
2549 if (qlcnic_api_lock(adapter))
2550 return -1;
2551
2552 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2553 if (!(val & (1 << (portnum * 4)))) {
2554 QLC_DEV_SET_REF_CNT(val, portnum);
2555 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2556 }
2557
2558 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2559 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2560
2561 switch (prev_state) {
2562 case QLCNIC_DEV_COLD:
2563 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2564 QLCNIC_DEV_INITIALIZING);
2565 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2566 QLCNIC_DRV_IDC_VER);
2567 qlcnic_idc_debug_info(adapter, 0);
2568 qlcnic_api_unlock(adapter);
2569 return 1;
2570
2571 case QLCNIC_DEV_READY:
2572 ret = qlcnic_check_idc_ver(adapter);
2573 qlcnic_api_unlock(adapter);
2574 return ret;
2575
2576 case QLCNIC_DEV_NEED_RESET:
2577 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2578 QLC_DEV_SET_RST_RDY(val, portnum);
2579 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2580 break;
2581
2582 case QLCNIC_DEV_NEED_QUISCENT:
2583 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2584 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2585 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2586 break;
2587
2588 case QLCNIC_DEV_FAILED:
2589 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2590 qlcnic_api_unlock(adapter);
2591 return -1;
2592
2593 case QLCNIC_DEV_INITIALIZING:
2594 case QLCNIC_DEV_QUISCENT:
2595 break;
2596 }
2597
2598 qlcnic_api_unlock(adapter);
2599
2600 do {
2601 msleep(1000);
2602 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2603
2604 if (prev_state == QLCNIC_DEV_QUISCENT)
2605 continue;
2606 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2607
2608 if (!dev_init_timeo) {
2609 dev_err(&adapter->pdev->dev,
2610 "Waiting for device to initialize timeout\n");
2611 return -1;
2612 }
2613
2614 if (qlcnic_api_lock(adapter))
2615 return -1;
2616
2617 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2618 QLC_DEV_CLR_RST_QSCNT(val, portnum);
2619 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2620
2621 ret = qlcnic_check_idc_ver(adapter);
2622 qlcnic_api_unlock(adapter);
2623
2624 return ret;
2625 }
2626
2627 static void
2628 qlcnic_fwinit_work(struct work_struct *work)
2629 {
2630 struct qlcnic_adapter *adapter = container_of(work,
2631 struct qlcnic_adapter, fw_work.work);
2632 u32 dev_state = 0xf;
2633 u32 val;
2634
2635 if (qlcnic_api_lock(adapter))
2636 goto err_ret;
2637
2638 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2639 if (dev_state == QLCNIC_DEV_QUISCENT ||
2640 dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2641 qlcnic_api_unlock(adapter);
2642 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2643 FW_POLL_DELAY * 2);
2644 return;
2645 }
2646
2647 if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
2648 qlcnic_api_unlock(adapter);
2649 goto wait_npar;
2650 }
2651
2652 if (dev_state == QLCNIC_DEV_INITIALIZING ||
2653 dev_state == QLCNIC_DEV_READY) {
2654 dev_info(&adapter->pdev->dev, "Detected state change from "
2655 "DEV_NEED_RESET, skipping ack check\n");
2656 goto skip_ack_check;
2657 }
2658
2659 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2660 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2661 adapter->reset_ack_timeo);
2662 goto skip_ack_check;
2663 }
2664
2665 if (!qlcnic_check_drv_state(adapter)) {
2666 skip_ack_check:
2667 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2668
2669 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2670 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2671 QLCNIC_DEV_INITIALIZING);
2672 set_bit(__QLCNIC_START_FW, &adapter->state);
2673 QLCDB(adapter, DRV, "Restarting fw\n");
2674 qlcnic_idc_debug_info(adapter, 0);
2675 val = QLC_SHARED_REG_RD32(adapter,
2676 QLCNIC_CRB_DRV_STATE);
2677 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2678 QLC_SHARED_REG_WR32(adapter,
2679 QLCNIC_CRB_DRV_STATE, val);
2680 }
2681
2682 qlcnic_api_unlock(adapter);
2683
2684 rtnl_lock();
2685 if (adapter->ahw->fw_dump.enable &&
2686 (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2687 QLCDB(adapter, DRV, "Take FW dump\n");
2688 qlcnic_dump_fw(adapter);
2689 adapter->flags |= QLCNIC_FW_HANG;
2690 }
2691 rtnl_unlock();
2692
2693 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2694 if (!adapter->nic_ops->start_firmware(adapter)) {
2695 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2696 adapter->fw_wait_cnt = 0;
2697 return;
2698 }
2699 goto err_ret;
2700 }
2701
2702 qlcnic_api_unlock(adapter);
2703
2704 wait_npar:
2705 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2706 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2707
2708 switch (dev_state) {
2709 case QLCNIC_DEV_READY:
2710 if (!qlcnic_start_firmware(adapter)) {
2711 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2712 adapter->fw_wait_cnt = 0;
2713 return;
2714 }
2715 case QLCNIC_DEV_FAILED:
2716 break;
2717 default:
2718 qlcnic_schedule_work(adapter,
2719 qlcnic_fwinit_work, FW_POLL_DELAY);
2720 return;
2721 }
2722
2723 err_ret:
2724 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2725 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2726 netif_device_attach(adapter->netdev);
2727 qlcnic_clr_all_drv_state(adapter, 0);
2728 }
2729
2730 static void
2731 qlcnic_detach_work(struct work_struct *work)
2732 {
2733 struct qlcnic_adapter *adapter = container_of(work,
2734 struct qlcnic_adapter, fw_work.work);
2735 struct net_device *netdev = adapter->netdev;
2736 u32 status;
2737
2738 netif_device_detach(netdev);
2739
2740 /* Dont grab rtnl lock during Quiscent mode */
2741 if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2742 if (netif_running(netdev))
2743 __qlcnic_down(adapter, netdev);
2744 } else
2745 qlcnic_down(adapter, netdev);
2746
2747 status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2748
2749 if (status & QLCNIC_RCODE_FATAL_ERROR) {
2750 dev_err(&adapter->pdev->dev,
2751 "Detaching the device: peg halt status1=0x%x\n",
2752 status);
2753
2754 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
2755 dev_err(&adapter->pdev->dev,
2756 "On board active cooling fan failed. "
2757 "Device has been halted.\n");
2758 dev_err(&adapter->pdev->dev,
2759 "Replace the adapter.\n");
2760 }
2761
2762 goto err_ret;
2763 }
2764
2765 if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
2766 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
2767 adapter->ahw->temp);
2768 goto err_ret;
2769 }
2770
2771 /* Dont ack if this instance is the reset owner */
2772 if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2773 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
2774 dev_err(&adapter->pdev->dev,
2775 "Failed to set driver state,"
2776 "detaching the device.\n");
2777 goto err_ret;
2778 }
2779 }
2780
2781 adapter->fw_wait_cnt = 0;
2782
2783 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2784
2785 return;
2786
2787 err_ret:
2788 netif_device_attach(netdev);
2789 qlcnic_clr_all_drv_state(adapter, 1);
2790 }
2791
2792 /*Transit NPAR state to NON Operational */
2793 static void
2794 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2795 {
2796 u32 state;
2797
2798 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2799 if (state == QLCNIC_DEV_NPAR_NON_OPER)
2800 return;
2801
2802 if (qlcnic_api_lock(adapter))
2803 return;
2804 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2805 QLCNIC_DEV_NPAR_NON_OPER);
2806 qlcnic_api_unlock(adapter);
2807 }
2808
2809 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
2810 {
2811 u32 state, xg_val = 0, gb_val = 0;
2812
2813 qlcnic_xg_set_xg0_mask(xg_val);
2814 qlcnic_xg_set_xg1_mask(xg_val);
2815 QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
2816 qlcnic_gb_set_gb0_mask(gb_val);
2817 qlcnic_gb_set_gb1_mask(gb_val);
2818 qlcnic_gb_set_gb2_mask(gb_val);
2819 qlcnic_gb_set_gb3_mask(gb_val);
2820 QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
2821 dev_info(&adapter->pdev->dev, "Pause control frames disabled"
2822 " on all ports\n");
2823 adapter->need_fw_reset = 1;
2824
2825 if (qlcnic_api_lock(adapter))
2826 return;
2827
2828 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2829
2830 if (state == QLCNIC_DEV_READY) {
2831 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2832 QLCNIC_DEV_NEED_RESET);
2833 adapter->flags |= QLCNIC_FW_RESET_OWNER;
2834 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2835 qlcnic_idc_debug_info(adapter, 0);
2836 }
2837
2838 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2839 QLCNIC_DEV_NPAR_NON_OPER);
2840 qlcnic_api_unlock(adapter);
2841 }
2842
2843 /* Transit to NPAR READY state from NPAR NOT READY state */
2844 static void
2845 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2846 {
2847 if (qlcnic_api_lock(adapter))
2848 return;
2849
2850 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2851 QLCNIC_DEV_NPAR_OPER);
2852 QLCDB(adapter, DRV, "NPAR operational state set\n");
2853
2854 qlcnic_api_unlock(adapter);
2855 }
2856
2857 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2858 work_func_t func, int delay)
2859 {
2860 if (test_bit(__QLCNIC_AER, &adapter->state))
2861 return;
2862
2863 INIT_DELAYED_WORK(&adapter->fw_work, func);
2864 queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
2865 round_jiffies_relative(delay));
2866 }
2867
2868 static void
2869 qlcnic_attach_work(struct work_struct *work)
2870 {
2871 struct qlcnic_adapter *adapter = container_of(work,
2872 struct qlcnic_adapter, fw_work.work);
2873 struct net_device *netdev = adapter->netdev;
2874 u32 npar_state;
2875
2876 if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
2877 npar_state = QLC_SHARED_REG_RD32(adapter,
2878 QLCNIC_CRB_DEV_NPAR_STATE);
2879 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2880 qlcnic_clr_all_drv_state(adapter, 0);
2881 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2882 qlcnic_schedule_work(adapter, qlcnic_attach_work,
2883 FW_POLL_DELAY);
2884 else
2885 goto attach;
2886 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2887 return;
2888 }
2889 attach:
2890 if (netif_running(netdev)) {
2891 if (qlcnic_up(adapter, netdev))
2892 goto done;
2893
2894 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2895 }
2896
2897 done:
2898 netif_device_attach(netdev);
2899 adapter->fw_fail_cnt = 0;
2900 adapter->flags &= ~QLCNIC_FW_HANG;
2901 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2902
2903 if (!qlcnic_clr_drv_state(adapter))
2904 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2905 FW_POLL_DELAY);
2906 }
2907
2908 static int
2909 qlcnic_check_health(struct qlcnic_adapter *adapter)
2910 {
2911 u32 state = 0, heartbeat;
2912 u32 peg_status;
2913
2914 if (qlcnic_check_temp(adapter))
2915 goto detach;
2916
2917 if (adapter->need_fw_reset)
2918 qlcnic_dev_request_reset(adapter, 0);
2919
2920 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2921 if (state == QLCNIC_DEV_NEED_RESET) {
2922 qlcnic_set_npar_non_operational(adapter);
2923 adapter->need_fw_reset = 1;
2924 } else if (state == QLCNIC_DEV_NEED_QUISCENT)
2925 goto detach;
2926
2927 heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2928 if (heartbeat != adapter->heartbeat) {
2929 adapter->heartbeat = heartbeat;
2930 adapter->fw_fail_cnt = 0;
2931 if (adapter->need_fw_reset)
2932 goto detach;
2933
2934 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset) {
2935 qlcnic_reset_hw_context(adapter);
2936 adapter->netdev->trans_start = jiffies;
2937 }
2938
2939 return 0;
2940 }
2941
2942 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2943 return 0;
2944
2945 adapter->flags |= QLCNIC_FW_HANG;
2946
2947 qlcnic_dev_request_reset(adapter, 0);
2948
2949 if (qlcnic_auto_fw_reset)
2950 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2951
2952 dev_err(&adapter->pdev->dev, "firmware hang detected\n");
2953 peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2954 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2955 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2956 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2957 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2958 "PEG_NET_4_PC: 0x%x\n",
2959 peg_status,
2960 QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
2961 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c),
2962 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c),
2963 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c),
2964 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c),
2965 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c));
2966 if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
2967 dev_err(&adapter->pdev->dev,
2968 "Firmware aborted with error code 0x00006700. "
2969 "Device is being reset.\n");
2970 detach:
2971 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
2972 QLCNIC_DEV_NEED_RESET;
2973
2974 if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
2975 &adapter->state)) {
2976
2977 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
2978 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
2979 }
2980
2981 return 1;
2982 }
2983
2984 static void
2985 qlcnic_fw_poll_work(struct work_struct *work)
2986 {
2987 struct qlcnic_adapter *adapter = container_of(work,
2988 struct qlcnic_adapter, fw_work.work);
2989
2990 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2991 goto reschedule;
2992
2993
2994 if (qlcnic_check_health(adapter))
2995 return;
2996
2997 if (adapter->fhash.fnum)
2998 qlcnic_prune_lb_filters(adapter);
2999
3000 reschedule:
3001 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3002 }
3003
3004 static int qlcnic_is_first_func(struct pci_dev *pdev)
3005 {
3006 struct pci_dev *oth_pdev;
3007 int val = pdev->devfn;
3008
3009 while (val-- > 0) {
3010 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3011 (pdev->bus), pdev->bus->number,
3012 PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3013 if (!oth_pdev)
3014 continue;
3015
3016 if (oth_pdev->current_state != PCI_D3cold) {
3017 pci_dev_put(oth_pdev);
3018 return 0;
3019 }
3020 pci_dev_put(oth_pdev);
3021 }
3022 return 1;
3023 }
3024
3025 static int qlcnic_attach_func(struct pci_dev *pdev)
3026 {
3027 int err, first_func;
3028 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3029 struct net_device *netdev = adapter->netdev;
3030
3031 pdev->error_state = pci_channel_io_normal;
3032
3033 err = pci_enable_device(pdev);
3034 if (err)
3035 return err;
3036
3037 pci_set_power_state(pdev, PCI_D0);
3038 pci_set_master(pdev);
3039 pci_restore_state(pdev);
3040
3041 first_func = qlcnic_is_first_func(pdev);
3042
3043 if (qlcnic_api_lock(adapter))
3044 return -EINVAL;
3045
3046 if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3047 adapter->need_fw_reset = 1;
3048 set_bit(__QLCNIC_START_FW, &adapter->state);
3049 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3050 QLCNIC_DEV_INITIALIZING);
3051 QLCDB(adapter, DRV, "Restarting fw\n");
3052 }
3053 qlcnic_api_unlock(adapter);
3054
3055 err = qlcnic_start_firmware(adapter);
3056 if (err)
3057 return err;
3058
3059 qlcnic_clr_drv_state(adapter);
3060 kfree(adapter->msix_entries);
3061 adapter->msix_entries = NULL;
3062 err = qlcnic_setup_intr(adapter, 0);
3063
3064 if (err) {
3065 kfree(adapter->msix_entries);
3066 netdev_err(netdev, "failed to setup interrupt\n");
3067 return err;
3068 }
3069
3070 if (qlcnic_83xx_check(adapter)) {
3071 /* register for NIC IDC AEN Events */
3072 qlcnic_83xx_register_nic_idc_func(adapter, 1);
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 qlcnic_83xx_free_mbx_intr(adapter);
3125 qlcnic_83xx_register_nic_idc_func(adapter, 0);
3126 cancel_delayed_work_sync(&adapter->idc_aen_work);
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 qlcnic_detach(adapter);
3219
3220 if (qlcnic_83xx_check(adapter))
3221 qlcnic_83xx_free_mbx_intr(adapter);
3222
3223 qlcnic_teardown_intr(adapter);
3224 err = qlcnic_setup_intr(adapter, data);
3225 if (err) {
3226 kfree(adapter->msix_entries);
3227 netdev_err(netdev, "failed to setup interrupt\n");
3228 return err;
3229 }
3230
3231 if (qlcnic_83xx_check(adapter)) {
3232 /* register for NIC IDC AEN Events */
3233 qlcnic_83xx_register_nic_idc_func(adapter, 1);
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
This page took 0.099773 seconds and 4 git commands to generate.