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21d00a0449a10f394fe6b02d5689c7b0ab3b95cf
[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_sriov.h"
13 #include "qlcnic_hw.h"
14
15 #include <linux/swab.h>
16 #include <linux/dma-mapping.h>
17 #include <linux/if_vlan.h>
18 #include <net/ip.h>
19 #include <linux/ipv6.h>
20 #include <linux/inetdevice.h>
21 #include <linux/aer.h>
22 #include <linux/log2.h>
23 #include <linux/pci.h>
24
25 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
26 MODULE_LICENSE("GPL");
27 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
28 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
29
30 char qlcnic_driver_name[] = "qlcnic";
31 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
32 "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
33
34 static int qlcnic_mac_learn;
35 module_param(qlcnic_mac_learn, int, 0444);
36 MODULE_PARM_DESC(qlcnic_mac_learn,
37 "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
38
39 int qlcnic_use_msi = 1;
40 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
41 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
42
43 int qlcnic_use_msi_x = 1;
44 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
45 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
46
47 int qlcnic_auto_fw_reset = 1;
48 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
49 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
50
51 int qlcnic_load_fw_file;
52 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file)");
53 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
54
55 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
56 static void qlcnic_remove(struct pci_dev *pdev);
57 static int qlcnic_open(struct net_device *netdev);
58 static int qlcnic_close(struct net_device *netdev);
59 static void qlcnic_tx_timeout(struct net_device *netdev);
60 static void qlcnic_attach_work(struct work_struct *work);
61 static void qlcnic_fwinit_work(struct work_struct *work);
62 #ifdef CONFIG_NET_POLL_CONTROLLER
63 static void qlcnic_poll_controller(struct net_device *netdev);
64 #endif
65
66 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
67 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
68
69 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
70 static irqreturn_t qlcnic_intr(int irq, void *data);
71 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
72 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
73 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
74
75 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
76 static int qlcnic_start_firmware(struct qlcnic_adapter *);
77
78 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
79 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
80 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
81 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
82 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
83
84 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
85 {
86 struct qlcnic_hardware_context *ahw = adapter->ahw;
87
88 if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
89 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
90 else
91 return 1;
92 }
93
94 /* PCI Device ID Table */
95 #define ENTRY(device) \
96 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
97 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
98
99 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
100 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
101 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
102 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
103 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
104 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
105 {0,}
106 };
107
108 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
109
110
111 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
112 {
113 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
114 }
115
116 static const u32 msi_tgt_status[8] = {
117 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
118 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
119 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
120 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
121 };
122
123 static const u32 qlcnic_reg_tbl[] = {
124 0x1B20A8, /* PEG_HALT_STAT1 */
125 0x1B20AC, /* PEG_HALT_STAT2 */
126 0x1B20B0, /* FW_HEARTBEAT */
127 0x1B2100, /* LOCK ID */
128 0x1B2128, /* FW_CAPABILITIES */
129 0x1B2138, /* drv active */
130 0x1B2140, /* dev state */
131 0x1B2144, /* drv state */
132 0x1B2148, /* drv scratch */
133 0x1B214C, /* dev partition info */
134 0x1B2174, /* drv idc ver */
135 0x1B2150, /* fw version major */
136 0x1B2154, /* fw version minor */
137 0x1B2158, /* fw version sub */
138 0x1B219C, /* npar state */
139 0x1B21FC, /* FW_IMG_VALID */
140 0x1B2250, /* CMD_PEG_STATE */
141 0x1B233C, /* RCV_PEG_STATE */
142 0x1B23B4, /* ASIC TEMP */
143 0x1B216C, /* FW api */
144 0x1B2170, /* drv op mode */
145 0x13C010, /* flash lock */
146 0x13C014, /* flash unlock */
147 };
148
149 static const struct qlcnic_board_info qlcnic_boards[] = {
150 { PCI_VENDOR_ID_QLOGIC,
151 PCI_DEVICE_ID_QLOGIC_QLE844X,
152 0x0,
153 0x0,
154 "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
155 { PCI_VENDOR_ID_QLOGIC,
156 PCI_DEVICE_ID_QLOGIC_QLE834X,
157 PCI_VENDOR_ID_QLOGIC,
158 0x24e,
159 "8300 Series Dual Port 10GbE Converged Network Adapter "
160 "(TCP/IP Networking)" },
161 { PCI_VENDOR_ID_QLOGIC,
162 PCI_DEVICE_ID_QLOGIC_QLE834X,
163 PCI_VENDOR_ID_QLOGIC,
164 0x243,
165 "8300 Series Single Port 10GbE Converged Network Adapter "
166 "(TCP/IP Networking)" },
167 { PCI_VENDOR_ID_QLOGIC,
168 PCI_DEVICE_ID_QLOGIC_QLE834X,
169 PCI_VENDOR_ID_QLOGIC,
170 0x24a,
171 "8300 Series Dual Port 10GbE Converged Network Adapter "
172 "(TCP/IP Networking)" },
173 { PCI_VENDOR_ID_QLOGIC,
174 PCI_DEVICE_ID_QLOGIC_QLE834X,
175 PCI_VENDOR_ID_QLOGIC,
176 0x246,
177 "8300 Series Dual Port 10GbE Converged Network Adapter "
178 "(TCP/IP Networking)" },
179 { PCI_VENDOR_ID_QLOGIC,
180 PCI_DEVICE_ID_QLOGIC_QLE834X,
181 PCI_VENDOR_ID_QLOGIC,
182 0x252,
183 "8300 Series Dual Port 10GbE Converged Network Adapter "
184 "(TCP/IP Networking)" },
185 { PCI_VENDOR_ID_QLOGIC,
186 PCI_DEVICE_ID_QLOGIC_QLE834X,
187 PCI_VENDOR_ID_QLOGIC,
188 0x26e,
189 "8300 Series Dual Port 10GbE Converged Network Adapter "
190 "(TCP/IP Networking)" },
191 { PCI_VENDOR_ID_QLOGIC,
192 PCI_DEVICE_ID_QLOGIC_QLE834X,
193 PCI_VENDOR_ID_QLOGIC,
194 0x260,
195 "8300 Series Dual Port 10GbE Converged Network Adapter "
196 "(TCP/IP Networking)" },
197 { PCI_VENDOR_ID_QLOGIC,
198 PCI_DEVICE_ID_QLOGIC_QLE834X,
199 PCI_VENDOR_ID_QLOGIC,
200 0x266,
201 "8300 Series Single Port 10GbE Converged Network Adapter "
202 "(TCP/IP Networking)" },
203 { PCI_VENDOR_ID_QLOGIC,
204 PCI_DEVICE_ID_QLOGIC_QLE834X,
205 PCI_VENDOR_ID_QLOGIC,
206 0x269,
207 "8300 Series Dual Port 10GbE Converged Network Adapter "
208 "(TCP/IP Networking)" },
209 { PCI_VENDOR_ID_QLOGIC,
210 PCI_DEVICE_ID_QLOGIC_QLE834X,
211 PCI_VENDOR_ID_QLOGIC,
212 0x271,
213 "8300 Series Dual Port 10GbE Converged Network Adapter "
214 "(TCP/IP Networking)" },
215 { PCI_VENDOR_ID_QLOGIC,
216 PCI_DEVICE_ID_QLOGIC_QLE834X,
217 0x0, 0x0, "8300 Series 1/10GbE Controller" },
218 { PCI_VENDOR_ID_QLOGIC,
219 PCI_DEVICE_ID_QLOGIC_QLE824X,
220 PCI_VENDOR_ID_QLOGIC,
221 0x203,
222 "8200 Series Single Port 10GbE Converged Network Adapter"
223 "(TCP/IP Networking)" },
224 { PCI_VENDOR_ID_QLOGIC,
225 PCI_DEVICE_ID_QLOGIC_QLE824X,
226 PCI_VENDOR_ID_QLOGIC,
227 0x207,
228 "8200 Series Dual Port 10GbE Converged Network Adapter"
229 "(TCP/IP Networking)" },
230 { PCI_VENDOR_ID_QLOGIC,
231 PCI_DEVICE_ID_QLOGIC_QLE824X,
232 PCI_VENDOR_ID_QLOGIC,
233 0x20b,
234 "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
235 { PCI_VENDOR_ID_QLOGIC,
236 PCI_DEVICE_ID_QLOGIC_QLE824X,
237 PCI_VENDOR_ID_QLOGIC,
238 0x20c,
239 "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
240 { PCI_VENDOR_ID_QLOGIC,
241 PCI_DEVICE_ID_QLOGIC_QLE824X,
242 PCI_VENDOR_ID_QLOGIC,
243 0x20f,
244 "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
245 { PCI_VENDOR_ID_QLOGIC,
246 PCI_DEVICE_ID_QLOGIC_QLE824X,
247 0x103c, 0x3733,
248 "NC523SFP 10Gb 2-port Server Adapter" },
249 { PCI_VENDOR_ID_QLOGIC,
250 PCI_DEVICE_ID_QLOGIC_QLE824X,
251 0x103c, 0x3346,
252 "CN1000Q Dual Port Converged Network Adapter" },
253 { PCI_VENDOR_ID_QLOGIC,
254 PCI_DEVICE_ID_QLOGIC_QLE824X,
255 PCI_VENDOR_ID_QLOGIC,
256 0x210,
257 "QME8242-k 10GbE Dual Port Mezzanine Card" },
258 { PCI_VENDOR_ID_QLOGIC,
259 PCI_DEVICE_ID_QLOGIC_QLE824X,
260 0x0, 0x0, "cLOM8214 1/10GbE Controller" },
261 };
262
263 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
264
265 static const
266 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
267
268 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
269 {
270 int size = sizeof(struct qlcnic_host_sds_ring) * count;
271
272 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
273
274 return recv_ctx->sds_rings == NULL;
275 }
276
277 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
278 {
279 if (recv_ctx->sds_rings != NULL)
280 kfree(recv_ctx->sds_rings);
281
282 recv_ctx->sds_rings = NULL;
283 }
284
285 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
286 {
287 struct net_device *netdev = adapter->netdev;
288 struct pci_dev *pdev = adapter->pdev;
289 u8 mac_addr[ETH_ALEN];
290 int ret;
291
292 ret = qlcnic_get_mac_address(adapter, mac_addr,
293 adapter->ahw->pci_func);
294 if (ret)
295 return ret;
296
297 memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
298 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
299
300 /* set station address */
301
302 if (!is_valid_ether_addr(netdev->dev_addr))
303 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
304 netdev->dev_addr);
305
306 return 0;
307 }
308
309 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
310 {
311 struct qlcnic_mac_list_s *cur;
312 struct list_head *head;
313
314 list_for_each(head, &adapter->mac_list) {
315 cur = list_entry(head, struct qlcnic_mac_list_s, list);
316 if (!memcmp(adapter->mac_addr, cur->mac_addr, ETH_ALEN)) {
317 qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
318 0, QLCNIC_MAC_DEL);
319 list_del(&cur->list);
320 kfree(cur);
321 return;
322 }
323 }
324 }
325
326 static int qlcnic_set_mac(struct net_device *netdev, void *p)
327 {
328 struct qlcnic_adapter *adapter = netdev_priv(netdev);
329 struct sockaddr *addr = p;
330
331 if (qlcnic_sriov_vf_check(adapter))
332 return -EINVAL;
333
334 if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
335 return -EOPNOTSUPP;
336
337 if (!is_valid_ether_addr(addr->sa_data))
338 return -EINVAL;
339
340 if (!memcmp(adapter->mac_addr, addr->sa_data, ETH_ALEN))
341 return 0;
342
343 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
344 netif_device_detach(netdev);
345 qlcnic_napi_disable(adapter);
346 }
347
348 qlcnic_delete_adapter_mac(adapter);
349 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
350 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
351 qlcnic_set_multi(adapter->netdev);
352
353 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
354 netif_device_attach(netdev);
355 qlcnic_napi_enable(adapter);
356 }
357 return 0;
358 }
359
360 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
361 struct net_device *netdev, const unsigned char *addr)
362 {
363 struct qlcnic_adapter *adapter = netdev_priv(netdev);
364 int err = -EOPNOTSUPP;
365
366 if (!adapter->fdb_mac_learn)
367 return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
368
369 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
370 if (is_unicast_ether_addr(addr)) {
371 err = dev_uc_del(netdev, addr);
372 if (!err)
373 err = qlcnic_nic_del_mac(adapter, addr);
374 } else if (is_multicast_ether_addr(addr)) {
375 err = dev_mc_del(netdev, addr);
376 } else {
377 err = -EINVAL;
378 }
379 }
380 return err;
381 }
382
383 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
384 struct net_device *netdev,
385 const unsigned char *addr, u16 flags)
386 {
387 struct qlcnic_adapter *adapter = netdev_priv(netdev);
388 int err = 0;
389
390 if (!adapter->fdb_mac_learn)
391 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
392
393 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
394 pr_info("%s: FDB e-switch is not enabled\n", __func__);
395 return -EOPNOTSUPP;
396 }
397
398 if (ether_addr_equal(addr, adapter->mac_addr))
399 return err;
400
401 if (is_unicast_ether_addr(addr)) {
402 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
403 err = dev_uc_add_excl(netdev, addr);
404 else
405 err = -ENOMEM;
406 } else if (is_multicast_ether_addr(addr)) {
407 err = dev_mc_add_excl(netdev, addr);
408 } else {
409 err = -EINVAL;
410 }
411
412 return err;
413 }
414
415 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
416 struct net_device *netdev, int idx)
417 {
418 struct qlcnic_adapter *adapter = netdev_priv(netdev);
419
420 if (!adapter->fdb_mac_learn)
421 return ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
422
423 if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
424 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
425
426 return idx;
427 }
428
429 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
430 {
431 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
432 usleep_range(10000, 11000);
433
434 if (!adapter->fw_work.work.func)
435 return;
436
437 cancel_delayed_work_sync(&adapter->fw_work);
438 }
439
440 static int qlcnic_get_phys_port_id(struct net_device *netdev,
441 struct netdev_phys_port_id *ppid)
442 {
443 struct qlcnic_adapter *adapter = netdev_priv(netdev);
444 struct qlcnic_hardware_context *ahw = adapter->ahw;
445
446 if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
447 return -EOPNOTSUPP;
448
449 ppid->id_len = sizeof(ahw->phys_port_id);
450 memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
451
452 return 0;
453 }
454
455 static const struct net_device_ops qlcnic_netdev_ops = {
456 .ndo_open = qlcnic_open,
457 .ndo_stop = qlcnic_close,
458 .ndo_start_xmit = qlcnic_xmit_frame,
459 .ndo_get_stats = qlcnic_get_stats,
460 .ndo_validate_addr = eth_validate_addr,
461 .ndo_set_rx_mode = qlcnic_set_multi,
462 .ndo_set_mac_address = qlcnic_set_mac,
463 .ndo_change_mtu = qlcnic_change_mtu,
464 .ndo_fix_features = qlcnic_fix_features,
465 .ndo_set_features = qlcnic_set_features,
466 .ndo_tx_timeout = qlcnic_tx_timeout,
467 .ndo_vlan_rx_add_vid = qlcnic_vlan_rx_add,
468 .ndo_vlan_rx_kill_vid = qlcnic_vlan_rx_del,
469 .ndo_fdb_add = qlcnic_fdb_add,
470 .ndo_fdb_del = qlcnic_fdb_del,
471 .ndo_fdb_dump = qlcnic_fdb_dump,
472 .ndo_get_phys_port_id = qlcnic_get_phys_port_id,
473 #ifdef CONFIG_NET_POLL_CONTROLLER
474 .ndo_poll_controller = qlcnic_poll_controller,
475 #endif
476 #ifdef CONFIG_QLCNIC_SRIOV
477 .ndo_set_vf_mac = qlcnic_sriov_set_vf_mac,
478 .ndo_set_vf_tx_rate = qlcnic_sriov_set_vf_tx_rate,
479 .ndo_get_vf_config = qlcnic_sriov_get_vf_config,
480 .ndo_set_vf_vlan = qlcnic_sriov_set_vf_vlan,
481 .ndo_set_vf_spoofchk = qlcnic_sriov_set_vf_spoofchk,
482 #endif
483 };
484
485 static const struct net_device_ops qlcnic_netdev_failed_ops = {
486 .ndo_open = qlcnic_open,
487 };
488
489 static struct qlcnic_nic_template qlcnic_ops = {
490 .config_bridged_mode = qlcnic_config_bridged_mode,
491 .config_led = qlcnic_82xx_config_led,
492 .start_firmware = qlcnic_82xx_start_firmware,
493 .request_reset = qlcnic_82xx_dev_request_reset,
494 .cancel_idc_work = qlcnic_82xx_cancel_idc_work,
495 .napi_add = qlcnic_82xx_napi_add,
496 .napi_del = qlcnic_82xx_napi_del,
497 .config_ipaddr = qlcnic_82xx_config_ipaddr,
498 .shutdown = qlcnic_82xx_shutdown,
499 .resume = qlcnic_82xx_resume,
500 .clear_legacy_intr = qlcnic_82xx_clear_legacy_intr,
501 };
502
503 struct qlcnic_nic_template qlcnic_vf_ops = {
504 .config_bridged_mode = qlcnicvf_config_bridged_mode,
505 .config_led = qlcnicvf_config_led,
506 .start_firmware = qlcnicvf_start_firmware
507 };
508
509 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
510 .read_crb = qlcnic_82xx_read_crb,
511 .write_crb = qlcnic_82xx_write_crb,
512 .read_reg = qlcnic_82xx_hw_read_wx_2M,
513 .write_reg = qlcnic_82xx_hw_write_wx_2M,
514 .get_mac_address = qlcnic_82xx_get_mac_address,
515 .setup_intr = qlcnic_82xx_setup_intr,
516 .alloc_mbx_args = qlcnic_82xx_alloc_mbx_args,
517 .mbx_cmd = qlcnic_82xx_issue_cmd,
518 .get_func_no = qlcnic_82xx_get_func_no,
519 .api_lock = qlcnic_82xx_api_lock,
520 .api_unlock = qlcnic_82xx_api_unlock,
521 .add_sysfs = qlcnic_82xx_add_sysfs,
522 .remove_sysfs = qlcnic_82xx_remove_sysfs,
523 .process_lb_rcv_ring_diag = qlcnic_82xx_process_rcv_ring_diag,
524 .create_rx_ctx = qlcnic_82xx_fw_cmd_create_rx_ctx,
525 .create_tx_ctx = qlcnic_82xx_fw_cmd_create_tx_ctx,
526 .del_rx_ctx = qlcnic_82xx_fw_cmd_del_rx_ctx,
527 .del_tx_ctx = qlcnic_82xx_fw_cmd_del_tx_ctx,
528 .setup_link_event = qlcnic_82xx_linkevent_request,
529 .get_nic_info = qlcnic_82xx_get_nic_info,
530 .get_pci_info = qlcnic_82xx_get_pci_info,
531 .set_nic_info = qlcnic_82xx_set_nic_info,
532 .change_macvlan = qlcnic_82xx_sre_macaddr_change,
533 .napi_enable = qlcnic_82xx_napi_enable,
534 .napi_disable = qlcnic_82xx_napi_disable,
535 .config_intr_coal = qlcnic_82xx_config_intr_coalesce,
536 .config_rss = qlcnic_82xx_config_rss,
537 .config_hw_lro = qlcnic_82xx_config_hw_lro,
538 .config_loopback = qlcnic_82xx_set_lb_mode,
539 .clear_loopback = qlcnic_82xx_clear_lb_mode,
540 .config_promisc_mode = qlcnic_82xx_nic_set_promisc,
541 .change_l2_filter = qlcnic_82xx_change_filter,
542 .get_board_info = qlcnic_82xx_get_board_info,
543 .set_mac_filter_count = qlcnic_82xx_set_mac_filter_count,
544 .free_mac_list = qlcnic_82xx_free_mac_list,
545 .read_phys_port_id = qlcnic_82xx_read_phys_port_id,
546 .io_error_detected = qlcnic_82xx_io_error_detected,
547 .io_slot_reset = qlcnic_82xx_io_slot_reset,
548 .io_resume = qlcnic_82xx_io_resume,
549 };
550
551 static void qlcnic_get_multiq_capability(struct qlcnic_adapter *adapter)
552 {
553 struct qlcnic_hardware_context *ahw = adapter->ahw;
554 int num_tx_q;
555
556 if (ahw->msix_supported &&
557 (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
558 num_tx_q = min_t(int, QLCNIC_DEF_NUM_TX_RINGS,
559 num_online_cpus());
560 if (num_tx_q > 1) {
561 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE,
562 &adapter->state);
563 adapter->max_drv_tx_rings = num_tx_q;
564 }
565 } else {
566 adapter->max_drv_tx_rings = 1;
567 }
568 }
569
570 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
571 {
572 struct pci_dev *pdev = adapter->pdev;
573 int max_tx_rings, max_sds_rings, tx_vector;
574 int err = -1, i;
575
576 if (adapter->flags & QLCNIC_TX_INTR_SHARED) {
577 max_tx_rings = 0;
578 tx_vector = 0;
579 } else {
580 max_tx_rings = adapter->max_drv_tx_rings;
581 tx_vector = 1;
582 }
583
584 if (!adapter->msix_entries) {
585 adapter->msix_entries = kcalloc(num_msix,
586 sizeof(struct msix_entry),
587 GFP_KERNEL);
588 if (!adapter->msix_entries)
589 return -ENOMEM;
590 }
591
592 adapter->max_sds_rings = 1;
593 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
594
595 if (adapter->ahw->msix_supported) {
596 enable_msix:
597 for (i = 0; i < num_msix; i++)
598 adapter->msix_entries[i].entry = i;
599 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
600 if (err == 0) {
601 adapter->flags |= QLCNIC_MSIX_ENABLED;
602 if (qlcnic_83xx_check(adapter)) {
603 adapter->ahw->num_msix = num_msix;
604 /* subtract mail box and tx ring vectors */
605 adapter->max_sds_rings = num_msix -
606 max_tx_rings - 1;
607 } else {
608 adapter->ahw->num_msix = num_msix;
609 if (qlcnic_check_multi_tx(adapter) &&
610 !adapter->ahw->diag_test &&
611 (adapter->max_drv_tx_rings > 1))
612 max_sds_rings = num_msix - max_tx_rings;
613 else
614 max_sds_rings = num_msix;
615
616 adapter->max_sds_rings = max_sds_rings;
617 }
618 dev_info(&pdev->dev, "using msi-x interrupts\n");
619 return err;
620 } else if (err > 0) {
621 dev_info(&pdev->dev,
622 "Unable to allocate %d MSI-X interrupt vectors\n",
623 num_msix);
624 if (qlcnic_83xx_check(adapter)) {
625 if (err < (QLC_83XX_MINIMUM_VECTOR - tx_vector))
626 return err;
627 err -= (max_tx_rings + 1);
628 num_msix = rounddown_pow_of_two(err);
629 num_msix += (max_tx_rings + 1);
630 } else {
631 num_msix = rounddown_pow_of_two(err);
632 if (qlcnic_check_multi_tx(adapter))
633 num_msix += max_tx_rings;
634 }
635
636 if (num_msix) {
637 dev_info(&pdev->dev,
638 "Trying to allocate %d MSI-X interrupt vectors\n",
639 num_msix);
640 goto enable_msix;
641 }
642 } else {
643 dev_info(&pdev->dev,
644 "Unable to allocate %d MSI-X interrupt vectors\n",
645 num_msix);
646 }
647 }
648
649 return err;
650 }
651
652 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
653 {
654 int err = 0;
655 u32 offset, mask_reg;
656 const struct qlcnic_legacy_intr_set *legacy_intrp;
657 struct qlcnic_hardware_context *ahw = adapter->ahw;
658 struct pci_dev *pdev = adapter->pdev;
659
660 if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
661 adapter->flags |= QLCNIC_MSI_ENABLED;
662 offset = msi_tgt_status[adapter->ahw->pci_func];
663 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
664 offset);
665 dev_info(&pdev->dev, "using msi interrupts\n");
666 adapter->msix_entries[0].vector = pdev->irq;
667 return err;
668 }
669
670 if (qlcnic_use_msi || qlcnic_use_msi_x)
671 return -EOPNOTSUPP;
672
673 legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
674 adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
675 offset = legacy_intrp->tgt_status_reg;
676 adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
677 mask_reg = legacy_intrp->tgt_mask_reg;
678 adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
679 adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
680 adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
681 dev_info(&pdev->dev, "using legacy interrupts\n");
682 adapter->msix_entries[0].vector = pdev->irq;
683 return err;
684 }
685
686 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr, int txq)
687 {
688 struct qlcnic_hardware_context *ahw = adapter->ahw;
689 int num_msix, err = 0;
690
691 if (!num_intr)
692 num_intr = QLCNIC_DEF_NUM_STS_DESC_RINGS;
693
694 if (ahw->msix_supported) {
695 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
696 num_intr));
697 if (qlcnic_check_multi_tx(adapter)) {
698 if (txq)
699 adapter->max_drv_tx_rings = txq;
700 num_msix += adapter->max_drv_tx_rings;
701 }
702 } else {
703 num_msix = 1;
704 }
705
706 err = qlcnic_enable_msix(adapter, num_msix);
707 if (err == -ENOMEM)
708 return err;
709
710 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
711 qlcnic_disable_multi_tx(adapter);
712
713 err = qlcnic_enable_msi_legacy(adapter);
714 if (!err)
715 return err;
716 }
717
718 return 0;
719 }
720
721 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
722 {
723 struct qlcnic_hardware_context *ahw = adapter->ahw;
724 int err, i;
725
726 if (qlcnic_check_multi_tx(adapter) &&
727 !ahw->diag_test &&
728 (adapter->flags & QLCNIC_MSIX_ENABLED)) {
729 ahw->intr_tbl = vzalloc(ahw->num_msix *
730 sizeof(struct qlcnic_intrpt_config));
731 if (!ahw->intr_tbl)
732 return -ENOMEM;
733
734 for (i = 0; i < ahw->num_msix; i++) {
735 ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
736 ahw->intr_tbl[i].id = i;
737 ahw->intr_tbl[i].src = 0;
738 }
739
740 err = qlcnic_82xx_config_intrpt(adapter, 1);
741 if (err)
742 dev_err(&adapter->pdev->dev,
743 "Failed to configure Interrupt for %d vector\n",
744 ahw->num_msix);
745 return err;
746 }
747
748 return 0;
749 }
750
751 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
752 {
753 if (adapter->flags & QLCNIC_MSIX_ENABLED)
754 pci_disable_msix(adapter->pdev);
755 if (adapter->flags & QLCNIC_MSI_ENABLED)
756 pci_disable_msi(adapter->pdev);
757
758 kfree(adapter->msix_entries);
759 adapter->msix_entries = NULL;
760
761 if (adapter->ahw->intr_tbl) {
762 vfree(adapter->ahw->intr_tbl);
763 adapter->ahw->intr_tbl = NULL;
764 }
765 }
766
767 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
768 {
769 if (ahw->pci_base0 != NULL)
770 iounmap(ahw->pci_base0);
771 }
772
773 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
774 {
775 struct qlcnic_pci_info *pci_info;
776 int ret;
777
778 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
779 switch (adapter->ahw->port_type) {
780 case QLCNIC_GBE:
781 adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_GBE_PORTS;
782 break;
783 case QLCNIC_XGBE:
784 adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_XG_PORTS;
785 break;
786 }
787 return 0;
788 }
789
790 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
791 return 0;
792
793 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
794 if (!pci_info)
795 return -ENOMEM;
796
797 ret = qlcnic_get_pci_info(adapter, pci_info);
798 kfree(pci_info);
799 return ret;
800 }
801
802 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
803 {
804 bool ret = false;
805
806 if (qlcnic_84xx_check(adapter)) {
807 ret = true;
808 } else if (qlcnic_83xx_check(adapter)) {
809 if (adapter->ahw->extra_capability[0] &
810 QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
811 ret = true;
812 else
813 ret = false;
814 }
815
816 return ret;
817 }
818
819 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
820 {
821 struct qlcnic_pci_info *pci_info;
822 int i, ret = 0, j = 0;
823 u16 act_pci_func;
824 u8 pfn;
825
826 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
827 if (!pci_info)
828 return -ENOMEM;
829
830 ret = qlcnic_get_pci_info(adapter, pci_info);
831 if (ret)
832 goto err_pci_info;
833
834 act_pci_func = adapter->ahw->act_pci_func;
835
836 adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
837 act_pci_func, GFP_KERNEL);
838 if (!adapter->npars) {
839 ret = -ENOMEM;
840 goto err_pci_info;
841 }
842
843 adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
844 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
845 if (!adapter->eswitch) {
846 ret = -ENOMEM;
847 goto err_npars;
848 }
849
850 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
851 pfn = pci_info[i].id;
852
853 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
854 ret = QL_STATUS_INVALID_PARAM;
855 goto err_eswitch;
856 }
857
858 if (!pci_info[i].active ||
859 (pci_info[i].type != QLCNIC_TYPE_NIC))
860 continue;
861
862 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
863 if (!qlcnic_83xx_enable_port_eswitch(adapter, pfn))
864 adapter->npars[j].eswitch_status = true;
865 else
866 continue;
867 } else {
868 adapter->npars[j].eswitch_status = true;
869 }
870
871 adapter->npars[j].pci_func = pfn;
872 adapter->npars[j].active = (u8)pci_info[i].active;
873 adapter->npars[j].type = (u8)pci_info[i].type;
874 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
875 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
876 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
877
878 j++;
879 }
880
881 if (qlcnic_82xx_check(adapter)) {
882 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
883 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
884 } else if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
885 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
886 qlcnic_enable_eswitch(adapter, i, 1);
887 }
888
889 kfree(pci_info);
890 return 0;
891
892 err_eswitch:
893 kfree(adapter->eswitch);
894 adapter->eswitch = NULL;
895 err_npars:
896 kfree(adapter->npars);
897 adapter->npars = NULL;
898 err_pci_info:
899 kfree(pci_info);
900
901 return ret;
902 }
903
904 static int
905 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
906 {
907 u8 id;
908 int ret;
909 u32 data = QLCNIC_MGMT_FUNC;
910 struct qlcnic_hardware_context *ahw = adapter->ahw;
911
912 ret = qlcnic_api_lock(adapter);
913 if (ret)
914 goto err_lock;
915
916 id = ahw->pci_func;
917 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
918 data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
919 QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
920 QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
921 qlcnic_api_unlock(adapter);
922 err_lock:
923 return ret;
924 }
925
926 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
927 const struct pci_device_id *ent)
928 {
929 u32 op_mode, priv_level;
930
931 /* Determine FW API version */
932 adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
933 QLCNIC_FW_API);
934
935 /* Find PCI function number */
936 qlcnic_get_func_no(adapter);
937
938 /* Determine function privilege level */
939 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
940 if (op_mode == QLC_DEV_DRV_DEFAULT)
941 priv_level = QLCNIC_MGMT_FUNC;
942 else
943 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
944
945 if (priv_level == QLCNIC_NON_PRIV_FUNC) {
946 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
947 dev_info(&adapter->pdev->dev,
948 "HAL Version: %d Non Privileged function\n",
949 adapter->ahw->fw_hal_version);
950 adapter->nic_ops = &qlcnic_vf_ops;
951 } else
952 adapter->nic_ops = &qlcnic_ops;
953 }
954
955 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
956 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
957 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
958 {
959 switch (dev_id) {
960 case PCI_DEVICE_ID_QLOGIC_QLE824X:
961 *bar = QLCNIC_82XX_BAR0_LENGTH;
962 break;
963 case PCI_DEVICE_ID_QLOGIC_QLE834X:
964 case PCI_DEVICE_ID_QLOGIC_QLE844X:
965 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
966 case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
967 *bar = QLCNIC_83XX_BAR0_LENGTH;
968 break;
969 default:
970 *bar = 0;
971 }
972 }
973
974 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
975 struct qlcnic_hardware_context *ahw)
976 {
977 u32 offset;
978 void __iomem *mem_ptr0 = NULL;
979 unsigned long mem_len, pci_len0 = 0, bar0_len;
980
981 /* remap phys address */
982 mem_len = pci_resource_len(pdev, 0);
983
984 qlcnic_get_bar_length(pdev->device, &bar0_len);
985 if (mem_len >= bar0_len) {
986
987 mem_ptr0 = pci_ioremap_bar(pdev, 0);
988 if (mem_ptr0 == NULL) {
989 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
990 return -EIO;
991 }
992 pci_len0 = mem_len;
993 } else {
994 return -EIO;
995 }
996
997 dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
998
999 ahw->pci_base0 = mem_ptr0;
1000 ahw->pci_len0 = pci_len0;
1001 offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1002 qlcnic_get_ioaddr(ahw, offset);
1003
1004 return 0;
1005 }
1006
1007 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1008 int index)
1009 {
1010 struct pci_dev *pdev = adapter->pdev;
1011 unsigned short subsystem_vendor;
1012 bool ret = true;
1013
1014 subsystem_vendor = pdev->subsystem_vendor;
1015
1016 if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1017 pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1018 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1019 qlcnic_boards[index].sub_device == pdev->subsystem_device)
1020 ret = true;
1021 else
1022 ret = false;
1023 }
1024
1025 return ret;
1026 }
1027
1028 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1029 {
1030 struct pci_dev *pdev = adapter->pdev;
1031 int i, found = 0;
1032
1033 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1034 if (qlcnic_boards[i].vendor == pdev->vendor &&
1035 qlcnic_boards[i].device == pdev->device &&
1036 qlcnic_validate_subsystem_id(adapter, i)) {
1037 found = 1;
1038 break;
1039 }
1040 }
1041
1042 if (!found)
1043 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1044 else
1045 sprintf(name, "%pM: %s" , adapter->mac_addr,
1046 qlcnic_boards[i].short_name);
1047 }
1048
1049 static void
1050 qlcnic_check_options(struct qlcnic_adapter *adapter)
1051 {
1052 int err;
1053 u32 fw_major, fw_minor, fw_build, prev_fw_version;
1054 struct pci_dev *pdev = adapter->pdev;
1055 struct qlcnic_hardware_context *ahw = adapter->ahw;
1056 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1057
1058 prev_fw_version = adapter->fw_version;
1059
1060 fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1061 fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1062 fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1063
1064 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1065
1066 err = qlcnic_get_board_info(adapter);
1067 if (err) {
1068 dev_err(&pdev->dev, "Error getting board config info.\n");
1069 return;
1070 }
1071 if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1072 if (fw_dump->tmpl_hdr == NULL ||
1073 adapter->fw_version > prev_fw_version) {
1074 if (fw_dump->tmpl_hdr)
1075 vfree(fw_dump->tmpl_hdr);
1076 if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1077 dev_info(&pdev->dev,
1078 "Supports FW dump capability\n");
1079 }
1080 }
1081
1082 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1083 QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1084
1085 if (adapter->ahw->port_type == QLCNIC_XGBE) {
1086 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1087 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1088 adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1089 } else {
1090 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1091 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1092 }
1093
1094 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1095 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1096
1097 } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1098 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1099 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1100 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1101 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1102 }
1103
1104 adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1105
1106 adapter->num_txd = MAX_CMD_DESCRIPTORS;
1107
1108 adapter->max_rds_rings = MAX_RDS_RINGS;
1109 }
1110
1111 static int
1112 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1113 {
1114 struct qlcnic_info nic_info;
1115 int err = 0;
1116
1117 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1118 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1119 if (err)
1120 return err;
1121
1122 adapter->ahw->physical_port = (u8)nic_info.phys_port;
1123 adapter->ahw->switch_mode = nic_info.switch_mode;
1124 adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1125 adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1126 adapter->ahw->capabilities = nic_info.capabilities;
1127
1128 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1129 u32 temp;
1130 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1131 if (err == -EIO)
1132 return err;
1133 adapter->ahw->extra_capability[0] = temp;
1134 }
1135 adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1136 adapter->ahw->max_mtu = nic_info.max_mtu;
1137
1138 /* Disable NPAR for 83XX */
1139 if (qlcnic_83xx_check(adapter))
1140 return err;
1141
1142 if (adapter->ahw->capabilities & BIT_6)
1143 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1144 else
1145 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1146
1147 return err;
1148 }
1149
1150 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1151 struct qlcnic_esw_func_cfg *esw_cfg)
1152 {
1153 if (esw_cfg->discard_tagged)
1154 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1155 else
1156 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1157
1158 if (esw_cfg->vlan_id) {
1159 adapter->rx_pvid = esw_cfg->vlan_id;
1160 adapter->tx_pvid = esw_cfg->vlan_id;
1161 } else {
1162 adapter->rx_pvid = 0;
1163 adapter->tx_pvid = 0;
1164 }
1165 }
1166
1167 static int
1168 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1169 {
1170 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1171 int err;
1172
1173 if (qlcnic_sriov_vf_check(adapter)) {
1174 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1175 if (err) {
1176 netdev_err(netdev,
1177 "Cannot add VLAN filter for VLAN id %d, err=%d",
1178 vid, err);
1179 return err;
1180 }
1181 }
1182
1183 set_bit(vid, adapter->vlans);
1184 return 0;
1185 }
1186
1187 static int
1188 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1189 {
1190 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1191 int err;
1192
1193 if (qlcnic_sriov_vf_check(adapter)) {
1194 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1195 if (err) {
1196 netdev_err(netdev,
1197 "Cannot delete VLAN filter for VLAN id %d, err=%d",
1198 vid, err);
1199 return err;
1200 }
1201 }
1202
1203 qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1204 clear_bit(vid, adapter->vlans);
1205 return 0;
1206 }
1207
1208 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1209 struct qlcnic_esw_func_cfg *esw_cfg)
1210 {
1211 adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1212 QLCNIC_PROMISC_DISABLED);
1213
1214 if (esw_cfg->mac_anti_spoof)
1215 adapter->flags |= QLCNIC_MACSPOOF;
1216
1217 if (!esw_cfg->mac_override)
1218 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1219
1220 if (!esw_cfg->promisc_mode)
1221 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1222 }
1223
1224 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1225 {
1226 struct qlcnic_esw_func_cfg esw_cfg;
1227
1228 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1229 return 0;
1230
1231 esw_cfg.pci_func = adapter->ahw->pci_func;
1232 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1233 return -EIO;
1234 qlcnic_set_vlan_config(adapter, &esw_cfg);
1235 qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1236 qlcnic_set_netdev_features(adapter, &esw_cfg);
1237
1238 return 0;
1239 }
1240
1241 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1242 struct qlcnic_esw_func_cfg *esw_cfg)
1243 {
1244 struct net_device *netdev = adapter->netdev;
1245
1246 if (qlcnic_83xx_check(adapter))
1247 return;
1248
1249 adapter->offload_flags = esw_cfg->offload_flags;
1250 adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1251 netdev_update_features(netdev);
1252 adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1253 }
1254
1255 static int
1256 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1257 {
1258 u32 op_mode, priv_level;
1259 int err = 0;
1260
1261 err = qlcnic_initialize_nic(adapter);
1262 if (err)
1263 return err;
1264
1265 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1266 return 0;
1267
1268 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1269 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1270
1271 if (op_mode == QLC_DEV_DRV_DEFAULT)
1272 priv_level = QLCNIC_MGMT_FUNC;
1273 else
1274 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1275
1276 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1277 if (priv_level == QLCNIC_MGMT_FUNC) {
1278 adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1279 err = qlcnic_init_pci_info(adapter);
1280 if (err)
1281 return err;
1282 /* Set privilege level for other functions */
1283 qlcnic_set_function_modes(adapter);
1284 dev_info(&adapter->pdev->dev,
1285 "HAL Version: %d, Management function\n",
1286 adapter->ahw->fw_hal_version);
1287 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1288 adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1289 dev_info(&adapter->pdev->dev,
1290 "HAL Version: %d, Privileged function\n",
1291 adapter->ahw->fw_hal_version);
1292 }
1293 }
1294
1295 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1296
1297 return err;
1298 }
1299
1300 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1301 {
1302 struct qlcnic_esw_func_cfg esw_cfg;
1303 struct qlcnic_npar_info *npar;
1304 u8 i;
1305
1306 if (adapter->need_fw_reset)
1307 return 0;
1308
1309 for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1310 if (!adapter->npars[i].eswitch_status)
1311 continue;
1312
1313 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1314 esw_cfg.pci_func = adapter->npars[i].pci_func;
1315 esw_cfg.mac_override = BIT_0;
1316 esw_cfg.promisc_mode = BIT_0;
1317 if (qlcnic_82xx_check(adapter)) {
1318 esw_cfg.offload_flags = BIT_0;
1319 if (QLCNIC_IS_TSO_CAPABLE(adapter))
1320 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1321 }
1322 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1323 return -EIO;
1324 npar = &adapter->npars[i];
1325 npar->pvid = esw_cfg.vlan_id;
1326 npar->mac_override = esw_cfg.mac_override;
1327 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1328 npar->discard_tagged = esw_cfg.discard_tagged;
1329 npar->promisc_mode = esw_cfg.promisc_mode;
1330 npar->offload_flags = esw_cfg.offload_flags;
1331 }
1332
1333 return 0;
1334 }
1335
1336
1337 static int
1338 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1339 struct qlcnic_npar_info *npar, int pci_func)
1340 {
1341 struct qlcnic_esw_func_cfg esw_cfg;
1342 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1343 esw_cfg.pci_func = pci_func;
1344 esw_cfg.vlan_id = npar->pvid;
1345 esw_cfg.mac_override = npar->mac_override;
1346 esw_cfg.discard_tagged = npar->discard_tagged;
1347 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1348 esw_cfg.offload_flags = npar->offload_flags;
1349 esw_cfg.promisc_mode = npar->promisc_mode;
1350 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1351 return -EIO;
1352
1353 esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1354 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1355 return -EIO;
1356
1357 return 0;
1358 }
1359
1360 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1361 {
1362 int i, err;
1363 struct qlcnic_npar_info *npar;
1364 struct qlcnic_info nic_info;
1365 u8 pci_func;
1366
1367 if (qlcnic_82xx_check(adapter))
1368 if (!adapter->need_fw_reset)
1369 return 0;
1370
1371 /* Set the NPAR config data after FW reset */
1372 for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1373 npar = &adapter->npars[i];
1374 pci_func = npar->pci_func;
1375 if (!adapter->npars[i].eswitch_status)
1376 continue;
1377
1378 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1379 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1380 if (err)
1381 return err;
1382 nic_info.min_tx_bw = npar->min_bw;
1383 nic_info.max_tx_bw = npar->max_bw;
1384 err = qlcnic_set_nic_info(adapter, &nic_info);
1385 if (err)
1386 return err;
1387
1388 if (npar->enable_pm) {
1389 err = qlcnic_config_port_mirroring(adapter,
1390 npar->dest_npar, 1,
1391 pci_func);
1392 if (err)
1393 return err;
1394 }
1395 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1396 if (err)
1397 return err;
1398 }
1399 return 0;
1400 }
1401
1402 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1403 {
1404 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1405 u32 npar_state;
1406
1407 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1408 return 0;
1409
1410 npar_state = QLC_SHARED_REG_RD32(adapter,
1411 QLCNIC_CRB_DEV_NPAR_STATE);
1412 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1413 msleep(1000);
1414 npar_state = QLC_SHARED_REG_RD32(adapter,
1415 QLCNIC_CRB_DEV_NPAR_STATE);
1416 }
1417 if (!npar_opt_timeo) {
1418 dev_err(&adapter->pdev->dev,
1419 "Waiting for NPAR state to operational timeout\n");
1420 return -EIO;
1421 }
1422 return 0;
1423 }
1424
1425 static int
1426 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1427 {
1428 int err;
1429
1430 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1431 adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1432 return 0;
1433
1434 err = qlcnic_set_default_offload_settings(adapter);
1435 if (err)
1436 return err;
1437
1438 err = qlcnic_reset_npar_config(adapter);
1439 if (err)
1440 return err;
1441
1442 qlcnic_dev_set_npar_ready(adapter);
1443
1444 return err;
1445 }
1446
1447 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1448 {
1449 int err;
1450
1451 err = qlcnic_can_start_firmware(adapter);
1452 if (err < 0)
1453 return err;
1454 else if (!err)
1455 goto check_fw_status;
1456
1457 if (qlcnic_load_fw_file)
1458 qlcnic_request_firmware(adapter);
1459 else {
1460 err = qlcnic_check_flash_fw_ver(adapter);
1461 if (err)
1462 goto err_out;
1463
1464 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1465 }
1466
1467 err = qlcnic_need_fw_reset(adapter);
1468 if (err == 0)
1469 goto check_fw_status;
1470
1471 err = qlcnic_pinit_from_rom(adapter);
1472 if (err)
1473 goto err_out;
1474
1475 err = qlcnic_load_firmware(adapter);
1476 if (err)
1477 goto err_out;
1478
1479 qlcnic_release_firmware(adapter);
1480 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1481
1482 check_fw_status:
1483 err = qlcnic_check_fw_status(adapter);
1484 if (err)
1485 goto err_out;
1486
1487 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1488 qlcnic_idc_debug_info(adapter, 1);
1489 err = qlcnic_check_eswitch_mode(adapter);
1490 if (err) {
1491 dev_err(&adapter->pdev->dev,
1492 "Memory allocation failed for eswitch\n");
1493 goto err_out;
1494 }
1495 err = qlcnic_set_mgmt_operations(adapter);
1496 if (err)
1497 goto err_out;
1498
1499 qlcnic_check_options(adapter);
1500 adapter->need_fw_reset = 0;
1501
1502 qlcnic_release_firmware(adapter);
1503 return 0;
1504
1505 err_out:
1506 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1507 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1508
1509 qlcnic_release_firmware(adapter);
1510 return err;
1511 }
1512
1513 static int
1514 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1515 {
1516 irq_handler_t handler;
1517 struct qlcnic_host_sds_ring *sds_ring;
1518 struct qlcnic_host_tx_ring *tx_ring;
1519 int err, ring, num_sds_rings;
1520
1521 unsigned long flags = 0;
1522 struct net_device *netdev = adapter->netdev;
1523 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1524
1525 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1526 if (qlcnic_82xx_check(adapter))
1527 handler = qlcnic_tmp_intr;
1528 else
1529 handler = qlcnic_83xx_tmp_intr;
1530 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1531 flags |= IRQF_SHARED;
1532
1533 } else {
1534 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1535 handler = qlcnic_msix_intr;
1536 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1537 handler = qlcnic_msi_intr;
1538 else {
1539 flags |= IRQF_SHARED;
1540 if (qlcnic_82xx_check(adapter))
1541 handler = qlcnic_intr;
1542 else
1543 handler = qlcnic_83xx_intr;
1544 }
1545 }
1546 adapter->irq = netdev->irq;
1547
1548 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1549 if (qlcnic_82xx_check(adapter) ||
1550 (qlcnic_83xx_check(adapter) &&
1551 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1552 num_sds_rings = adapter->max_sds_rings;
1553 for (ring = 0; ring < num_sds_rings; ring++) {
1554 sds_ring = &recv_ctx->sds_rings[ring];
1555 if (qlcnic_82xx_check(adapter) &&
1556 !qlcnic_check_multi_tx(adapter) &&
1557 (ring == (num_sds_rings - 1))) {
1558 if (!(adapter->flags &
1559 QLCNIC_MSIX_ENABLED))
1560 snprintf(sds_ring->name,
1561 sizeof(sds_ring->name),
1562 "qlcnic");
1563 else
1564 snprintf(sds_ring->name,
1565 sizeof(sds_ring->name),
1566 "%s-tx-0-rx-%d",
1567 netdev->name, ring);
1568 } else {
1569 snprintf(sds_ring->name,
1570 sizeof(sds_ring->name),
1571 "%s-rx-%d",
1572 netdev->name, ring);
1573 }
1574 err = request_irq(sds_ring->irq, handler, flags,
1575 sds_ring->name, sds_ring);
1576 if (err)
1577 return err;
1578 }
1579 }
1580 if ((qlcnic_82xx_check(adapter) &&
1581 qlcnic_check_multi_tx(adapter)) ||
1582 (qlcnic_83xx_check(adapter) &&
1583 (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1584 !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1585 handler = qlcnic_msix_tx_intr;
1586 for (ring = 0; ring < adapter->max_drv_tx_rings;
1587 ring++) {
1588 tx_ring = &adapter->tx_ring[ring];
1589 snprintf(tx_ring->name, sizeof(tx_ring->name),
1590 "%s-tx-%d", netdev->name, ring);
1591 err = request_irq(tx_ring->irq, handler, flags,
1592 tx_ring->name, tx_ring);
1593 if (err)
1594 return err;
1595 }
1596 }
1597 }
1598 return 0;
1599 }
1600
1601 static void
1602 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1603 {
1604 int ring;
1605 struct qlcnic_host_sds_ring *sds_ring;
1606 struct qlcnic_host_tx_ring *tx_ring;
1607
1608 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1609
1610 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1611 if (qlcnic_82xx_check(adapter) ||
1612 (qlcnic_83xx_check(adapter) &&
1613 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1614 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1615 sds_ring = &recv_ctx->sds_rings[ring];
1616 free_irq(sds_ring->irq, sds_ring);
1617 }
1618 }
1619 if ((qlcnic_83xx_check(adapter) &&
1620 !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1621 (qlcnic_82xx_check(adapter) &&
1622 qlcnic_check_multi_tx(adapter))) {
1623 for (ring = 0; ring < adapter->max_drv_tx_rings;
1624 ring++) {
1625 tx_ring = &adapter->tx_ring[ring];
1626 if (tx_ring->irq)
1627 free_irq(tx_ring->irq, tx_ring);
1628 }
1629 }
1630 }
1631 }
1632
1633 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1634 {
1635 u32 capab = 0;
1636
1637 if (qlcnic_82xx_check(adapter)) {
1638 if (adapter->ahw->extra_capability[0] &
1639 QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1640 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1641 } else {
1642 capab = adapter->ahw->capabilities;
1643 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1644 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1645 }
1646 }
1647
1648 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1649 {
1650 int ring;
1651 struct qlcnic_host_rds_ring *rds_ring;
1652
1653 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1654 return -EIO;
1655
1656 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1657 return 0;
1658
1659 if (qlcnic_set_eswitch_port_config(adapter))
1660 return -EIO;
1661
1662 qlcnic_get_lro_mss_capability(adapter);
1663
1664 if (qlcnic_fw_create_ctx(adapter))
1665 return -EIO;
1666
1667 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1668 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1669 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1670 }
1671
1672 qlcnic_set_multi(netdev);
1673 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1674
1675 adapter->ahw->linkup = 0;
1676
1677 if (adapter->max_sds_rings > 1)
1678 qlcnic_config_rss(adapter, 1);
1679
1680 qlcnic_config_intr_coalesce(adapter);
1681
1682 if (netdev->features & NETIF_F_LRO)
1683 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1684
1685 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1686 qlcnic_napi_enable(adapter);
1687
1688 qlcnic_linkevent_request(adapter, 1);
1689
1690 adapter->ahw->reset_context = 0;
1691 return 0;
1692 }
1693
1694 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1695 {
1696 int err = 0;
1697
1698 rtnl_lock();
1699 if (netif_running(netdev))
1700 err = __qlcnic_up(adapter, netdev);
1701 rtnl_unlock();
1702
1703 return err;
1704 }
1705
1706 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1707 {
1708 int ring;
1709
1710 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1711 return;
1712
1713 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1714 return;
1715
1716 if (qlcnic_sriov_vf_check(adapter))
1717 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1718 smp_mb();
1719 netif_carrier_off(netdev);
1720 adapter->ahw->linkup = 0;
1721 netif_tx_disable(netdev);
1722
1723 qlcnic_free_mac_list(adapter);
1724
1725 if (adapter->fhash.fnum)
1726 qlcnic_delete_lb_filters(adapter);
1727
1728 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1729
1730 qlcnic_napi_disable(adapter);
1731
1732 qlcnic_fw_destroy_ctx(adapter);
1733 adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1734
1735 qlcnic_reset_rx_buffers_list(adapter);
1736
1737 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++)
1738 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1739 }
1740
1741 /* Usage: During suspend and firmware recovery module */
1742
1743 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1744 {
1745 rtnl_lock();
1746 if (netif_running(netdev))
1747 __qlcnic_down(adapter, netdev);
1748 rtnl_unlock();
1749
1750 }
1751
1752 int
1753 qlcnic_attach(struct qlcnic_adapter *adapter)
1754 {
1755 struct net_device *netdev = adapter->netdev;
1756 struct pci_dev *pdev = adapter->pdev;
1757 int err;
1758
1759 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1760 return 0;
1761
1762 err = qlcnic_napi_add(adapter, netdev);
1763 if (err)
1764 return err;
1765
1766 err = qlcnic_alloc_sw_resources(adapter);
1767 if (err) {
1768 dev_err(&pdev->dev, "Error in setting sw resources\n");
1769 goto err_out_napi_del;
1770 }
1771
1772 err = qlcnic_alloc_hw_resources(adapter);
1773 if (err) {
1774 dev_err(&pdev->dev, "Error in setting hw resources\n");
1775 goto err_out_free_sw;
1776 }
1777
1778 err = qlcnic_request_irq(adapter);
1779 if (err) {
1780 dev_err(&pdev->dev, "failed to setup interrupt\n");
1781 goto err_out_free_hw;
1782 }
1783
1784 qlcnic_create_sysfs_entries(adapter);
1785
1786 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1787 return 0;
1788
1789 err_out_free_hw:
1790 qlcnic_free_hw_resources(adapter);
1791 err_out_free_sw:
1792 qlcnic_free_sw_resources(adapter);
1793 err_out_napi_del:
1794 qlcnic_napi_del(adapter);
1795 return err;
1796 }
1797
1798 void qlcnic_detach(struct qlcnic_adapter *adapter)
1799 {
1800 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1801 return;
1802
1803 qlcnic_remove_sysfs_entries(adapter);
1804
1805 qlcnic_free_hw_resources(adapter);
1806 qlcnic_release_rx_buffers(adapter);
1807 qlcnic_free_irq(adapter);
1808 qlcnic_napi_del(adapter);
1809 qlcnic_free_sw_resources(adapter);
1810
1811 adapter->is_up = 0;
1812 }
1813
1814 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1815 {
1816 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1817 struct qlcnic_host_sds_ring *sds_ring;
1818 int max_tx_rings = adapter->max_drv_tx_rings;
1819 int ring;
1820
1821 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1822 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1823 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1824 sds_ring = &adapter->recv_ctx->sds_rings[ring];
1825 qlcnic_disable_int(sds_ring);
1826 }
1827 }
1828
1829 qlcnic_fw_destroy_ctx(adapter);
1830
1831 qlcnic_detach(adapter);
1832
1833 adapter->ahw->diag_test = 0;
1834 adapter->max_sds_rings = max_sds_rings;
1835 adapter->max_drv_tx_rings = max_tx_rings;
1836
1837 if (qlcnic_attach(adapter))
1838 goto out;
1839
1840 if (netif_running(netdev))
1841 __qlcnic_up(adapter, netdev);
1842 out:
1843 netif_device_attach(netdev);
1844 }
1845
1846 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1847 {
1848 struct qlcnic_hardware_context *ahw = adapter->ahw;
1849 int err = 0;
1850
1851 adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1852 GFP_KERNEL);
1853 if (!adapter->recv_ctx) {
1854 err = -ENOMEM;
1855 goto err_out;
1856 }
1857 /* Initialize interrupt coalesce parameters */
1858 ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1859 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1860 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1861 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1862 if (qlcnic_83xx_check(adapter)) {
1863 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1864 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1865 }
1866 /* clear stats */
1867 memset(&adapter->stats, 0, sizeof(adapter->stats));
1868 err_out:
1869 return err;
1870 }
1871
1872 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1873 {
1874 kfree(adapter->recv_ctx);
1875 adapter->recv_ctx = NULL;
1876
1877 if (adapter->ahw->fw_dump.tmpl_hdr) {
1878 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1879 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1880 }
1881
1882 kfree(adapter->ahw->reset.buff);
1883 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1884 }
1885
1886 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1887 {
1888 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1889 struct qlcnic_host_sds_ring *sds_ring;
1890 struct qlcnic_host_rds_ring *rds_ring;
1891 int ring;
1892 int ret;
1893
1894 netif_device_detach(netdev);
1895
1896 if (netif_running(netdev))
1897 __qlcnic_down(adapter, netdev);
1898
1899 qlcnic_detach(adapter);
1900
1901 adapter->max_sds_rings = 1;
1902 adapter->ahw->diag_test = test;
1903 adapter->ahw->linkup = 0;
1904 adapter->max_drv_tx_rings = 1;
1905
1906 ret = qlcnic_attach(adapter);
1907 if (ret) {
1908 netif_device_attach(netdev);
1909 return ret;
1910 }
1911
1912 ret = qlcnic_fw_create_ctx(adapter);
1913 if (ret) {
1914 qlcnic_detach(adapter);
1915 netif_device_attach(netdev);
1916 return ret;
1917 }
1918
1919 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1920 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1921 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1922 }
1923
1924 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1925 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1926 sds_ring = &adapter->recv_ctx->sds_rings[ring];
1927 qlcnic_enable_int(sds_ring);
1928 }
1929 }
1930
1931 if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1932 adapter->ahw->loopback_state = 0;
1933 qlcnic_linkevent_request(adapter, 1);
1934 }
1935
1936 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1937
1938 return 0;
1939 }
1940
1941 /* Reset context in hardware only */
1942 static int
1943 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1944 {
1945 struct net_device *netdev = adapter->netdev;
1946
1947 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1948 return -EBUSY;
1949
1950 netif_device_detach(netdev);
1951
1952 qlcnic_down(adapter, netdev);
1953
1954 qlcnic_up(adapter, netdev);
1955
1956 netif_device_attach(netdev);
1957
1958 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1959 dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1960 return 0;
1961 }
1962
1963 int
1964 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1965 {
1966 int err = 0;
1967 struct net_device *netdev = adapter->netdev;
1968
1969 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1970 return -EBUSY;
1971
1972 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1973
1974 netif_device_detach(netdev);
1975
1976 if (netif_running(netdev))
1977 __qlcnic_down(adapter, netdev);
1978
1979 qlcnic_detach(adapter);
1980
1981 if (netif_running(netdev)) {
1982 err = qlcnic_attach(adapter);
1983 if (!err) {
1984 __qlcnic_up(adapter, netdev);
1985 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1986 }
1987 }
1988
1989 netif_device_attach(netdev);
1990 }
1991
1992 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1993 return err;
1994 }
1995
1996 void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
1997 {
1998 struct qlcnic_hardware_context *ahw = adapter->ahw;
1999 u16 act_pci_fn = ahw->act_pci_func;
2000 u16 count;
2001
2002 ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2003 if (act_pci_fn <= 2)
2004 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2005 act_pci_fn;
2006 else
2007 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2008 act_pci_fn;
2009 ahw->max_uc_count = count;
2010 }
2011
2012 int
2013 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2014 int pci_using_dac)
2015 {
2016 int err;
2017 struct pci_dev *pdev = adapter->pdev;
2018
2019 adapter->rx_csum = 1;
2020 adapter->ahw->mc_enabled = 0;
2021 qlcnic_set_mac_filter_count(adapter);
2022
2023 netdev->netdev_ops = &qlcnic_netdev_ops;
2024 netdev->watchdog_timeo = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2025
2026 qlcnic_change_mtu(netdev, netdev->mtu);
2027
2028 if (qlcnic_sriov_vf_check(adapter))
2029 SET_ETHTOOL_OPS(netdev, &qlcnic_sriov_vf_ethtool_ops);
2030 else
2031 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
2032
2033 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2034 NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2035 NETIF_F_HW_VLAN_CTAG_RX);
2036 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2037 NETIF_F_IPV6_CSUM);
2038
2039 if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2040 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2041 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2042 }
2043
2044 if (pci_using_dac) {
2045 netdev->features |= NETIF_F_HIGHDMA;
2046 netdev->vlan_features |= NETIF_F_HIGHDMA;
2047 }
2048
2049 if (qlcnic_vlan_tx_check(adapter))
2050 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2051
2052 if (qlcnic_sriov_vf_check(adapter))
2053 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2054
2055 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2056 netdev->features |= NETIF_F_LRO;
2057
2058 netdev->hw_features = netdev->features;
2059 netdev->priv_flags |= IFF_UNICAST_FLT;
2060 netdev->irq = adapter->msix_entries[0].vector;
2061
2062 err = qlcnic_set_real_num_queues(adapter, netdev);
2063 if (err)
2064 return err;
2065
2066 err = register_netdev(netdev);
2067 if (err) {
2068 dev_err(&pdev->dev, "failed to register net device\n");
2069 return err;
2070 }
2071
2072 qlcnic_dcb_init_dcbnl_ops(adapter);
2073
2074 return 0;
2075 }
2076
2077 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2078 {
2079 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2080 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2081 *pci_using_dac = 1;
2082 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2083 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2084 *pci_using_dac = 0;
2085 else {
2086 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2087 return -EIO;
2088 }
2089
2090 return 0;
2091 }
2092
2093 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2094 {
2095 int ring;
2096 struct qlcnic_host_tx_ring *tx_ring;
2097
2098 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
2099 tx_ring = &adapter->tx_ring[ring];
2100 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
2101 vfree(tx_ring->cmd_buf_arr);
2102 tx_ring->cmd_buf_arr = NULL;
2103 }
2104 }
2105 if (adapter->tx_ring != NULL)
2106 kfree(adapter->tx_ring);
2107 }
2108
2109 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2110 struct net_device *netdev)
2111 {
2112 int ring, vector, index;
2113 struct qlcnic_host_tx_ring *tx_ring;
2114 struct qlcnic_cmd_buffer *cmd_buf_arr;
2115
2116 tx_ring = kcalloc(adapter->max_drv_tx_rings,
2117 sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2118 if (tx_ring == NULL)
2119 return -ENOMEM;
2120
2121 adapter->tx_ring = tx_ring;
2122
2123 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
2124 tx_ring = &adapter->tx_ring[ring];
2125 tx_ring->num_desc = adapter->num_txd;
2126 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2127 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2128 if (cmd_buf_arr == NULL) {
2129 qlcnic_free_tx_rings(adapter);
2130 return -ENOMEM;
2131 }
2132 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
2133 tx_ring->cmd_buf_arr = cmd_buf_arr;
2134 }
2135
2136 if (qlcnic_83xx_check(adapter) ||
2137 (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2138 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
2139 tx_ring = &adapter->tx_ring[ring];
2140 tx_ring->adapter = adapter;
2141 if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2142 index = adapter->max_sds_rings + ring;
2143 vector = adapter->msix_entries[index].vector;
2144 tx_ring->irq = vector;
2145 }
2146 }
2147 }
2148
2149 return 0;
2150 }
2151
2152 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2153 {
2154 struct qlcnic_hardware_context *ahw = adapter->ahw;
2155 u32 fw_cmd = 0;
2156
2157 if (qlcnic_82xx_check(adapter))
2158 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2159 else if (qlcnic_83xx_check(adapter))
2160 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2161
2162 if ((ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) &&
2163 (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER))
2164 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2165 }
2166
2167 static int qlcnic_register_dcb(struct qlcnic_adapter *adapter)
2168 {
2169 return __qlcnic_register_dcb(adapter);
2170 }
2171
2172 void qlcnic_clear_dcb_ops(struct qlcnic_adapter *adapter)
2173 {
2174 kfree(adapter->dcb);
2175 adapter->dcb = NULL;
2176 }
2177
2178 static int
2179 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2180 {
2181 struct net_device *netdev = NULL;
2182 struct qlcnic_adapter *adapter = NULL;
2183 struct qlcnic_hardware_context *ahw;
2184 int err, pci_using_dac = -1;
2185 char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2186
2187 if (pdev->is_virtfn)
2188 return -ENODEV;
2189
2190 err = pci_enable_device(pdev);
2191 if (err)
2192 return err;
2193
2194 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2195 err = -ENODEV;
2196 goto err_out_disable_pdev;
2197 }
2198
2199 err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2200 if (err)
2201 goto err_out_disable_pdev;
2202
2203 err = pci_request_regions(pdev, qlcnic_driver_name);
2204 if (err)
2205 goto err_out_disable_pdev;
2206
2207 pci_set_master(pdev);
2208 pci_enable_pcie_error_reporting(pdev);
2209
2210 ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2211 if (!ahw) {
2212 err = -ENOMEM;
2213 goto err_out_free_res;
2214 }
2215
2216 switch (ent->device) {
2217 case PCI_DEVICE_ID_QLOGIC_QLE824X:
2218 ahw->hw_ops = &qlcnic_hw_ops;
2219 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2220 break;
2221 case PCI_DEVICE_ID_QLOGIC_QLE834X:
2222 case PCI_DEVICE_ID_QLOGIC_QLE844X:
2223 qlcnic_83xx_register_map(ahw);
2224 break;
2225 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2226 case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2227 qlcnic_sriov_vf_register_map(ahw);
2228 break;
2229 default:
2230 goto err_out_free_hw_res;
2231 }
2232
2233 err = qlcnic_setup_pci_map(pdev, ahw);
2234 if (err)
2235 goto err_out_free_hw_res;
2236
2237 netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2238 QLCNIC_MAX_TX_RINGS);
2239 if (!netdev) {
2240 err = -ENOMEM;
2241 goto err_out_iounmap;
2242 }
2243
2244 SET_NETDEV_DEV(netdev, &pdev->dev);
2245
2246 adapter = netdev_priv(netdev);
2247 adapter->netdev = netdev;
2248 adapter->pdev = pdev;
2249 adapter->ahw = ahw;
2250
2251 adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2252 if (adapter->qlcnic_wq == NULL) {
2253 err = -ENOMEM;
2254 dev_err(&pdev->dev, "Failed to create workqueue\n");
2255 goto err_out_free_netdev;
2256 }
2257
2258 err = qlcnic_alloc_adapter_resources(adapter);
2259 if (err)
2260 goto err_out_free_netdev;
2261
2262 adapter->dev_rst_time = jiffies;
2263 adapter->ahw->revision_id = pdev->revision;
2264 if (qlcnic_mac_learn == FDB_MAC_LEARN)
2265 adapter->fdb_mac_learn = true;
2266 else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2267 adapter->drv_mac_learn = true;
2268
2269 rwlock_init(&adapter->ahw->crb_lock);
2270 mutex_init(&adapter->ahw->mem_lock);
2271
2272 INIT_LIST_HEAD(&adapter->mac_list);
2273
2274 qlcnic_register_dcb(adapter);
2275
2276 if (qlcnic_82xx_check(adapter)) {
2277 qlcnic_check_vf(adapter, ent);
2278 adapter->portnum = adapter->ahw->pci_func;
2279 err = qlcnic_start_firmware(adapter);
2280 if (err) {
2281 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2282 "\t\tIf reboot doesn't help, try flashing the card\n");
2283 goto err_out_maintenance_mode;
2284 }
2285
2286 qlcnic_get_multiq_capability(adapter);
2287
2288 if ((adapter->ahw->act_pci_func > 2) &&
2289 qlcnic_check_multi_tx(adapter)) {
2290 adapter->max_drv_tx_rings = QLCNIC_DEF_NUM_TX_RINGS;
2291 dev_info(&adapter->pdev->dev,
2292 "vNIC mode enabled, Set max TX rings = %d\n",
2293 adapter->max_drv_tx_rings);
2294 }
2295
2296 if (!qlcnic_check_multi_tx(adapter)) {
2297 clear_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
2298 adapter->max_drv_tx_rings = 1;
2299 }
2300 err = qlcnic_setup_idc_param(adapter);
2301 if (err)
2302 goto err_out_free_hw;
2303
2304 adapter->flags |= QLCNIC_NEED_FLR;
2305
2306 if (adapter->dcb && qlcnic_dcb_attach(adapter))
2307 qlcnic_clear_dcb_ops(adapter);
2308
2309 } else if (qlcnic_83xx_check(adapter)) {
2310 adapter->max_drv_tx_rings = 1;
2311 qlcnic_83xx_check_vf(adapter, ent);
2312 adapter->portnum = adapter->ahw->pci_func;
2313 err = qlcnic_83xx_init(adapter, pci_using_dac);
2314 if (err) {
2315 dev_err(&pdev->dev, "%s: failed\n", __func__);
2316 goto err_out_free_hw;
2317 }
2318 if (qlcnic_sriov_vf_check(adapter))
2319 return 0;
2320 } else {
2321 dev_err(&pdev->dev,
2322 "%s: failed. Please Reboot\n", __func__);
2323 goto err_out_free_hw;
2324 }
2325
2326 if (qlcnic_read_mac_addr(adapter))
2327 dev_warn(&pdev->dev, "failed to read mac addr\n");
2328
2329 qlcnic_read_phys_port_id(adapter);
2330
2331 if (adapter->portnum == 0) {
2332 qlcnic_get_board_name(adapter, board_name);
2333
2334 pr_info("%s: %s Board Chip rev 0x%x\n",
2335 module_name(THIS_MODULE),
2336 board_name, adapter->ahw->revision_id);
2337 }
2338
2339 if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2340 !!qlcnic_use_msi)
2341 dev_warn(&pdev->dev,
2342 "Device does not support MSI interrupts\n");
2343
2344 if (qlcnic_82xx_check(adapter)) {
2345 err = qlcnic_setup_intr(adapter, 0, 0);
2346 if (err) {
2347 dev_err(&pdev->dev, "Failed to setup interrupt\n");
2348 goto err_out_disable_msi;
2349 }
2350 }
2351
2352 err = qlcnic_get_act_pci_func(adapter);
2353 if (err)
2354 goto err_out_disable_mbx_intr;
2355
2356 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2357 if (err)
2358 goto err_out_disable_mbx_intr;
2359
2360 if (adapter->portnum == 0)
2361 qlcnic_set_drv_version(adapter);
2362
2363 pci_set_drvdata(pdev, adapter);
2364
2365 if (qlcnic_82xx_check(adapter))
2366 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2367 FW_POLL_DELAY);
2368
2369 switch (adapter->ahw->port_type) {
2370 case QLCNIC_GBE:
2371 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2372 adapter->netdev->name);
2373 break;
2374 case QLCNIC_XGBE:
2375 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2376 adapter->netdev->name);
2377 break;
2378 }
2379
2380 if (adapter->drv_mac_learn)
2381 qlcnic_alloc_lb_filters_mem(adapter);
2382
2383 qlcnic_add_sysfs(adapter);
2384
2385 return 0;
2386
2387 err_out_disable_mbx_intr:
2388 if (qlcnic_83xx_check(adapter))
2389 qlcnic_83xx_free_mbx_intr(adapter);
2390
2391 err_out_disable_msi:
2392 qlcnic_teardown_intr(adapter);
2393 qlcnic_cancel_idc_work(adapter);
2394 qlcnic_clr_all_drv_state(adapter, 0);
2395
2396 err_out_free_hw:
2397 qlcnic_free_adapter_resources(adapter);
2398
2399 err_out_free_netdev:
2400 free_netdev(netdev);
2401
2402 err_out_iounmap:
2403 qlcnic_cleanup_pci_map(ahw);
2404
2405 err_out_free_hw_res:
2406 kfree(ahw);
2407
2408 err_out_free_res:
2409 pci_release_regions(pdev);
2410
2411 err_out_disable_pdev:
2412 pci_set_drvdata(pdev, NULL);
2413 pci_disable_device(pdev);
2414 return err;
2415
2416 err_out_maintenance_mode:
2417 netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2418 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops);
2419 err = register_netdev(netdev);
2420
2421 if (err) {
2422 dev_err(&pdev->dev, "Failed to register net device\n");
2423 qlcnic_clr_all_drv_state(adapter, 0);
2424 goto err_out_free_hw;
2425 }
2426
2427 pci_set_drvdata(pdev, adapter);
2428 qlcnic_add_sysfs(adapter);
2429
2430 return 0;
2431 }
2432
2433 static void qlcnic_remove(struct pci_dev *pdev)
2434 {
2435 struct qlcnic_adapter *adapter;
2436 struct net_device *netdev;
2437 struct qlcnic_hardware_context *ahw;
2438
2439 adapter = pci_get_drvdata(pdev);
2440 if (adapter == NULL)
2441 return;
2442
2443 netdev = adapter->netdev;
2444 qlcnic_sriov_pf_disable(adapter);
2445
2446 qlcnic_cancel_idc_work(adapter);
2447 ahw = adapter->ahw;
2448
2449 qlcnic_dcb_free(adapter);
2450
2451 unregister_netdev(netdev);
2452 qlcnic_sriov_cleanup(adapter);
2453
2454 if (qlcnic_83xx_check(adapter)) {
2455 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2456 cancel_delayed_work_sync(&adapter->idc_aen_work);
2457 qlcnic_83xx_free_mbx_intr(adapter);
2458 qlcnic_83xx_detach_mailbox_work(adapter);
2459 qlcnic_83xx_free_mailbox(ahw->mailbox);
2460 kfree(ahw->fw_info);
2461 }
2462
2463 qlcnic_detach(adapter);
2464
2465 if (adapter->npars != NULL)
2466 kfree(adapter->npars);
2467 if (adapter->eswitch != NULL)
2468 kfree(adapter->eswitch);
2469
2470 if (qlcnic_82xx_check(adapter))
2471 qlcnic_clr_all_drv_state(adapter, 0);
2472
2473 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2474
2475 qlcnic_free_lb_filters_mem(adapter);
2476
2477 qlcnic_teardown_intr(adapter);
2478
2479 qlcnic_remove_sysfs(adapter);
2480
2481 qlcnic_cleanup_pci_map(adapter->ahw);
2482
2483 qlcnic_release_firmware(adapter);
2484
2485 pci_disable_pcie_error_reporting(pdev);
2486 pci_release_regions(pdev);
2487 pci_disable_device(pdev);
2488 pci_set_drvdata(pdev, NULL);
2489
2490 if (adapter->qlcnic_wq) {
2491 destroy_workqueue(adapter->qlcnic_wq);
2492 adapter->qlcnic_wq = NULL;
2493 }
2494
2495 qlcnic_free_adapter_resources(adapter);
2496 kfree(ahw);
2497 free_netdev(netdev);
2498 }
2499
2500 static void qlcnic_shutdown(struct pci_dev *pdev)
2501 {
2502 if (__qlcnic_shutdown(pdev))
2503 return;
2504
2505 pci_disable_device(pdev);
2506 }
2507
2508 #ifdef CONFIG_PM
2509 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2510 {
2511 int retval;
2512
2513 retval = __qlcnic_shutdown(pdev);
2514 if (retval)
2515 return retval;
2516
2517 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2518 return 0;
2519 }
2520
2521 static int qlcnic_resume(struct pci_dev *pdev)
2522 {
2523 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2524 int err;
2525
2526 err = pci_enable_device(pdev);
2527 if (err)
2528 return err;
2529
2530 pci_set_power_state(pdev, PCI_D0);
2531 pci_set_master(pdev);
2532 pci_restore_state(pdev);
2533
2534 return __qlcnic_resume(adapter);
2535 }
2536 #endif
2537
2538 static int qlcnic_open(struct net_device *netdev)
2539 {
2540 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2541 u32 state;
2542 int err;
2543
2544 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2545 if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD) {
2546 netdev_err(netdev, "%s: Device is in FAILED state\n", __func__);
2547
2548 return -EIO;
2549 }
2550
2551 netif_carrier_off(netdev);
2552
2553 err = qlcnic_attach(adapter);
2554 if (err)
2555 return err;
2556
2557 err = __qlcnic_up(adapter, netdev);
2558 if (err)
2559 goto err_out;
2560
2561 netif_tx_start_all_queues(netdev);
2562
2563 return 0;
2564
2565 err_out:
2566 qlcnic_detach(adapter);
2567 return err;
2568 }
2569
2570 /*
2571 * qlcnic_close - Disables a network interface entry point
2572 */
2573 static int qlcnic_close(struct net_device *netdev)
2574 {
2575 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2576
2577 __qlcnic_down(adapter, netdev);
2578
2579 return 0;
2580 }
2581
2582 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2583 {
2584 void *head;
2585 int i;
2586 struct net_device *netdev = adapter->netdev;
2587 u32 filter_size = 0;
2588 u16 act_pci_func = 0;
2589
2590 if (adapter->fhash.fmax && adapter->fhash.fhead)
2591 return;
2592
2593 act_pci_func = adapter->ahw->act_pci_func;
2594 spin_lock_init(&adapter->mac_learn_lock);
2595 spin_lock_init(&adapter->rx_mac_learn_lock);
2596
2597 if (qlcnic_82xx_check(adapter)) {
2598 filter_size = QLCNIC_LB_MAX_FILTERS;
2599 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2600 } else {
2601 filter_size = QLC_83XX_LB_MAX_FILTERS;
2602 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2603 }
2604
2605 head = kcalloc(adapter->fhash.fbucket_size,
2606 sizeof(struct hlist_head), GFP_ATOMIC);
2607
2608 if (!head)
2609 return;
2610
2611 adapter->fhash.fmax = (filter_size / act_pci_func);
2612 adapter->fhash.fhead = head;
2613
2614 netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2615 act_pci_func, adapter->fhash.fmax);
2616
2617 for (i = 0; i < adapter->fhash.fbucket_size; i++)
2618 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2619
2620 adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2621
2622 head = kcalloc(adapter->rx_fhash.fbucket_size,
2623 sizeof(struct hlist_head), GFP_ATOMIC);
2624
2625 if (!head)
2626 return;
2627
2628 adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2629 adapter->rx_fhash.fhead = head;
2630
2631 for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2632 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2633 }
2634
2635 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2636 {
2637 if (adapter->fhash.fmax && adapter->fhash.fhead)
2638 kfree(adapter->fhash.fhead);
2639
2640 adapter->fhash.fhead = NULL;
2641 adapter->fhash.fmax = 0;
2642
2643 if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2644 kfree(adapter->rx_fhash.fhead);
2645
2646 adapter->rx_fhash.fmax = 0;
2647 adapter->rx_fhash.fhead = NULL;
2648 }
2649
2650 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2651 {
2652 struct net_device *netdev = adapter->netdev;
2653 u32 temp_state, temp_val, temp = 0;
2654 int rv = 0;
2655
2656 if (qlcnic_83xx_check(adapter))
2657 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2658
2659 if (qlcnic_82xx_check(adapter))
2660 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2661
2662 temp_state = qlcnic_get_temp_state(temp);
2663 temp_val = qlcnic_get_temp_val(temp);
2664
2665 if (temp_state == QLCNIC_TEMP_PANIC) {
2666 dev_err(&netdev->dev,
2667 "Device temperature %d degrees C exceeds"
2668 " maximum allowed. Hardware has been shut down.\n",
2669 temp_val);
2670 rv = 1;
2671 } else if (temp_state == QLCNIC_TEMP_WARN) {
2672 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2673 dev_err(&netdev->dev,
2674 "Device temperature %d degrees C "
2675 "exceeds operating range."
2676 " Immediate action needed.\n",
2677 temp_val);
2678 }
2679 } else {
2680 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2681 dev_info(&netdev->dev,
2682 "Device temperature is now %d degrees C"
2683 " in normal range.\n", temp_val);
2684 }
2685 }
2686 adapter->ahw->temp = temp_state;
2687 return rv;
2688 }
2689
2690 static void qlcnic_tx_timeout(struct net_device *netdev)
2691 {
2692 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2693 struct qlcnic_host_tx_ring *tx_ring;
2694 int ring;
2695
2696 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2697 return;
2698
2699 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) {
2700 netdev_info(netdev, "Tx timeout, reset the adapter.\n");
2701 if (qlcnic_82xx_check(adapter))
2702 adapter->need_fw_reset = 1;
2703 else if (qlcnic_83xx_check(adapter))
2704 qlcnic_83xx_idc_request_reset(adapter,
2705 QLCNIC_FORCE_FW_DUMP_KEY);
2706 } else {
2707 netdev_info(netdev, "Tx timeout, reset adapter context.\n");
2708 if (qlcnic_82xx_check(adapter)) {
2709 for (ring = 0; ring < adapter->max_drv_tx_rings;
2710 ring++) {
2711 tx_ring = &adapter->tx_ring[ring];
2712 dev_info(&netdev->dev, "ring=%d\n", ring);
2713 dev_info(&netdev->dev, "crb_intr_mask=%d\n",
2714 readl(tx_ring->crb_intr_mask));
2715 dev_info(&netdev->dev, "producer=%d\n",
2716 readl(tx_ring->crb_cmd_producer));
2717 dev_info(&netdev->dev, "sw_consumer = %d\n",
2718 tx_ring->sw_consumer);
2719 dev_info(&netdev->dev, "hw_consumer = %d\n",
2720 le32_to_cpu(*(tx_ring->hw_consumer)));
2721 dev_info(&netdev->dev, "xmit-on=%llu\n",
2722 tx_ring->xmit_on);
2723 dev_info(&netdev->dev, "xmit-off=%llu\n",
2724 tx_ring->xmit_off);
2725 }
2726 }
2727 adapter->ahw->reset_context = 1;
2728 }
2729 }
2730
2731 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2732 {
2733 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2734 struct net_device_stats *stats = &netdev->stats;
2735
2736 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2737 stats->tx_packets = adapter->stats.xmitfinished;
2738 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2739 stats->tx_bytes = adapter->stats.txbytes;
2740 stats->rx_dropped = adapter->stats.rxdropped;
2741 stats->tx_dropped = adapter->stats.txdropped;
2742
2743 return stats;
2744 }
2745
2746 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2747 {
2748 u32 status;
2749
2750 status = readl(adapter->isr_int_vec);
2751
2752 if (!(status & adapter->ahw->int_vec_bit))
2753 return IRQ_NONE;
2754
2755 /* check interrupt state machine, to be sure */
2756 status = readl(adapter->crb_int_state_reg);
2757 if (!ISR_LEGACY_INT_TRIGGERED(status))
2758 return IRQ_NONE;
2759
2760 writel(0xffffffff, adapter->tgt_status_reg);
2761 /* read twice to ensure write is flushed */
2762 readl(adapter->isr_int_vec);
2763 readl(adapter->isr_int_vec);
2764
2765 return IRQ_HANDLED;
2766 }
2767
2768 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2769 {
2770 struct qlcnic_host_sds_ring *sds_ring = data;
2771 struct qlcnic_adapter *adapter = sds_ring->adapter;
2772
2773 if (adapter->flags & QLCNIC_MSIX_ENABLED)
2774 goto done;
2775 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2776 writel(0xffffffff, adapter->tgt_status_reg);
2777 goto done;
2778 }
2779
2780 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2781 return IRQ_NONE;
2782
2783 done:
2784 adapter->ahw->diag_cnt++;
2785 qlcnic_enable_int(sds_ring);
2786 return IRQ_HANDLED;
2787 }
2788
2789 static irqreturn_t qlcnic_intr(int irq, void *data)
2790 {
2791 struct qlcnic_host_sds_ring *sds_ring = data;
2792 struct qlcnic_adapter *adapter = sds_ring->adapter;
2793
2794 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2795 return IRQ_NONE;
2796
2797 napi_schedule(&sds_ring->napi);
2798
2799 return IRQ_HANDLED;
2800 }
2801
2802 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2803 {
2804 struct qlcnic_host_sds_ring *sds_ring = data;
2805 struct qlcnic_adapter *adapter = sds_ring->adapter;
2806
2807 /* clear interrupt */
2808 writel(0xffffffff, adapter->tgt_status_reg);
2809
2810 napi_schedule(&sds_ring->napi);
2811 return IRQ_HANDLED;
2812 }
2813
2814 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2815 {
2816 struct qlcnic_host_sds_ring *sds_ring = data;
2817
2818 napi_schedule(&sds_ring->napi);
2819 return IRQ_HANDLED;
2820 }
2821
2822 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2823 {
2824 struct qlcnic_host_tx_ring *tx_ring = data;
2825
2826 napi_schedule(&tx_ring->napi);
2827 return IRQ_HANDLED;
2828 }
2829
2830 #ifdef CONFIG_NET_POLL_CONTROLLER
2831 static void qlcnic_poll_controller(struct net_device *netdev)
2832 {
2833 int ring;
2834 struct qlcnic_host_sds_ring *sds_ring;
2835 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2836 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2837
2838 disable_irq(adapter->irq);
2839 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2840 sds_ring = &recv_ctx->sds_rings[ring];
2841 qlcnic_intr(adapter->irq, sds_ring);
2842 }
2843 enable_irq(adapter->irq);
2844 }
2845 #endif
2846
2847 static void
2848 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2849 {
2850 u32 val;
2851
2852 val = adapter->portnum & 0xf;
2853 val |= encoding << 7;
2854 val |= (jiffies - adapter->dev_rst_time) << 8;
2855
2856 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2857 adapter->dev_rst_time = jiffies;
2858 }
2859
2860 static int
2861 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2862 {
2863 u32 val;
2864
2865 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2866 state != QLCNIC_DEV_NEED_QUISCENT);
2867
2868 if (qlcnic_api_lock(adapter))
2869 return -EIO;
2870
2871 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2872
2873 if (state == QLCNIC_DEV_NEED_RESET)
2874 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2875 else if (state == QLCNIC_DEV_NEED_QUISCENT)
2876 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2877
2878 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2879
2880 qlcnic_api_unlock(adapter);
2881
2882 return 0;
2883 }
2884
2885 static int
2886 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2887 {
2888 u32 val;
2889
2890 if (qlcnic_api_lock(adapter))
2891 return -EBUSY;
2892
2893 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2894 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2895 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2896
2897 qlcnic_api_unlock(adapter);
2898
2899 return 0;
2900 }
2901
2902 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2903 {
2904 u32 val;
2905
2906 if (qlcnic_api_lock(adapter))
2907 goto err;
2908
2909 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2910 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2911 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2912
2913 if (failed) {
2914 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2915 QLCNIC_DEV_FAILED);
2916 dev_info(&adapter->pdev->dev,
2917 "Device state set to Failed. Please Reboot\n");
2918 } else if (!(val & 0x11111111))
2919 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2920 QLCNIC_DEV_COLD);
2921
2922 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2923 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2924 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2925
2926 qlcnic_api_unlock(adapter);
2927 err:
2928 adapter->fw_fail_cnt = 0;
2929 adapter->flags &= ~QLCNIC_FW_HANG;
2930 clear_bit(__QLCNIC_START_FW, &adapter->state);
2931 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2932 }
2933
2934 /* Grab api lock, before checking state */
2935 static int
2936 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2937 {
2938 int act, state, active_mask;
2939 struct qlcnic_hardware_context *ahw = adapter->ahw;
2940
2941 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2942 act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2943
2944 if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2945 active_mask = (~(1 << (ahw->pci_func * 4)));
2946 act = act & active_mask;
2947 }
2948
2949 if (((state & 0x11111111) == (act & 0x11111111)) ||
2950 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2951 return 0;
2952 else
2953 return 1;
2954 }
2955
2956 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2957 {
2958 u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2959
2960 if (val != QLCNIC_DRV_IDC_VER) {
2961 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2962 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2963 }
2964
2965 return 0;
2966 }
2967
2968 static int
2969 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2970 {
2971 u32 val, prev_state;
2972 u8 dev_init_timeo = adapter->dev_init_timeo;
2973 u8 portnum = adapter->portnum;
2974 u8 ret;
2975
2976 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2977 return 1;
2978
2979 if (qlcnic_api_lock(adapter))
2980 return -1;
2981
2982 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2983 if (!(val & (1 << (portnum * 4)))) {
2984 QLC_DEV_SET_REF_CNT(val, portnum);
2985 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2986 }
2987
2988 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2989 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2990
2991 switch (prev_state) {
2992 case QLCNIC_DEV_COLD:
2993 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2994 QLCNIC_DEV_INITIALIZING);
2995 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2996 QLCNIC_DRV_IDC_VER);
2997 qlcnic_idc_debug_info(adapter, 0);
2998 qlcnic_api_unlock(adapter);
2999 return 1;
3000
3001 case QLCNIC_DEV_READY:
3002 ret = qlcnic_check_idc_ver(adapter);
3003 qlcnic_api_unlock(adapter);
3004 return ret;
3005
3006 case QLCNIC_DEV_NEED_RESET:
3007 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3008 QLC_DEV_SET_RST_RDY(val, portnum);
3009 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3010 break;
3011
3012 case QLCNIC_DEV_NEED_QUISCENT:
3013 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3014 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3015 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3016 break;
3017
3018 case QLCNIC_DEV_FAILED:
3019 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3020 qlcnic_api_unlock(adapter);
3021 return -1;
3022
3023 case QLCNIC_DEV_INITIALIZING:
3024 case QLCNIC_DEV_QUISCENT:
3025 break;
3026 }
3027
3028 qlcnic_api_unlock(adapter);
3029
3030 do {
3031 msleep(1000);
3032 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3033
3034 if (prev_state == QLCNIC_DEV_QUISCENT)
3035 continue;
3036 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3037
3038 if (!dev_init_timeo) {
3039 dev_err(&adapter->pdev->dev,
3040 "Waiting for device to initialize timeout\n");
3041 return -1;
3042 }
3043
3044 if (qlcnic_api_lock(adapter))
3045 return -1;
3046
3047 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3048 QLC_DEV_CLR_RST_QSCNT(val, portnum);
3049 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3050
3051 ret = qlcnic_check_idc_ver(adapter);
3052 qlcnic_api_unlock(adapter);
3053
3054 return ret;
3055 }
3056
3057 static void
3058 qlcnic_fwinit_work(struct work_struct *work)
3059 {
3060 struct qlcnic_adapter *adapter = container_of(work,
3061 struct qlcnic_adapter, fw_work.work);
3062 u32 dev_state = 0xf;
3063 u32 val;
3064
3065 if (qlcnic_api_lock(adapter))
3066 goto err_ret;
3067
3068 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3069 if (dev_state == QLCNIC_DEV_QUISCENT ||
3070 dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3071 qlcnic_api_unlock(adapter);
3072 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3073 FW_POLL_DELAY * 2);
3074 return;
3075 }
3076
3077 if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3078 qlcnic_api_unlock(adapter);
3079 goto wait_npar;
3080 }
3081
3082 if (dev_state == QLCNIC_DEV_INITIALIZING ||
3083 dev_state == QLCNIC_DEV_READY) {
3084 dev_info(&adapter->pdev->dev, "Detected state change from "
3085 "DEV_NEED_RESET, skipping ack check\n");
3086 goto skip_ack_check;
3087 }
3088
3089 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3090 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3091 adapter->reset_ack_timeo);
3092 goto skip_ack_check;
3093 }
3094
3095 if (!qlcnic_check_drv_state(adapter)) {
3096 skip_ack_check:
3097 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3098
3099 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3100 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3101 QLCNIC_DEV_INITIALIZING);
3102 set_bit(__QLCNIC_START_FW, &adapter->state);
3103 QLCDB(adapter, DRV, "Restarting fw\n");
3104 qlcnic_idc_debug_info(adapter, 0);
3105 val = QLC_SHARED_REG_RD32(adapter,
3106 QLCNIC_CRB_DRV_STATE);
3107 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3108 QLC_SHARED_REG_WR32(adapter,
3109 QLCNIC_CRB_DRV_STATE, val);
3110 }
3111
3112 qlcnic_api_unlock(adapter);
3113
3114 rtnl_lock();
3115 if (qlcnic_check_fw_dump_state(adapter) &&
3116 (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3117 QLCDB(adapter, DRV, "Take FW dump\n");
3118 qlcnic_dump_fw(adapter);
3119 adapter->flags |= QLCNIC_FW_HANG;
3120 }
3121 rtnl_unlock();
3122
3123 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3124 if (!adapter->nic_ops->start_firmware(adapter)) {
3125 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3126 adapter->fw_wait_cnt = 0;
3127 return;
3128 }
3129 goto err_ret;
3130 }
3131
3132 qlcnic_api_unlock(adapter);
3133
3134 wait_npar:
3135 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3136 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3137
3138 switch (dev_state) {
3139 case QLCNIC_DEV_READY:
3140 if (!qlcnic_start_firmware(adapter)) {
3141 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3142 adapter->fw_wait_cnt = 0;
3143 return;
3144 }
3145 case QLCNIC_DEV_FAILED:
3146 break;
3147 default:
3148 qlcnic_schedule_work(adapter,
3149 qlcnic_fwinit_work, FW_POLL_DELAY);
3150 return;
3151 }
3152
3153 err_ret:
3154 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3155 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3156 netif_device_attach(adapter->netdev);
3157 qlcnic_clr_all_drv_state(adapter, 0);
3158 }
3159
3160 static void
3161 qlcnic_detach_work(struct work_struct *work)
3162 {
3163 struct qlcnic_adapter *adapter = container_of(work,
3164 struct qlcnic_adapter, fw_work.work);
3165 struct net_device *netdev = adapter->netdev;
3166 u32 status;
3167
3168 netif_device_detach(netdev);
3169
3170 /* Dont grab rtnl lock during Quiscent mode */
3171 if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3172 if (netif_running(netdev))
3173 __qlcnic_down(adapter, netdev);
3174 } else
3175 qlcnic_down(adapter, netdev);
3176
3177 status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3178
3179 if (status & QLCNIC_RCODE_FATAL_ERROR) {
3180 dev_err(&adapter->pdev->dev,
3181 "Detaching the device: peg halt status1=0x%x\n",
3182 status);
3183
3184 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3185 dev_err(&adapter->pdev->dev,
3186 "On board active cooling fan failed. "
3187 "Device has been halted.\n");
3188 dev_err(&adapter->pdev->dev,
3189 "Replace the adapter.\n");
3190 }
3191
3192 goto err_ret;
3193 }
3194
3195 if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3196 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3197 adapter->ahw->temp);
3198 goto err_ret;
3199 }
3200
3201 /* Dont ack if this instance is the reset owner */
3202 if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3203 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3204 dev_err(&adapter->pdev->dev,
3205 "Failed to set driver state,"
3206 "detaching the device.\n");
3207 goto err_ret;
3208 }
3209 }
3210
3211 adapter->fw_wait_cnt = 0;
3212
3213 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3214
3215 return;
3216
3217 err_ret:
3218 netif_device_attach(netdev);
3219 qlcnic_clr_all_drv_state(adapter, 1);
3220 }
3221
3222 /*Transit NPAR state to NON Operational */
3223 static void
3224 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3225 {
3226 u32 state;
3227
3228 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3229 if (state == QLCNIC_DEV_NPAR_NON_OPER)
3230 return;
3231
3232 if (qlcnic_api_lock(adapter))
3233 return;
3234 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3235 QLCNIC_DEV_NPAR_NON_OPER);
3236 qlcnic_api_unlock(adapter);
3237 }
3238
3239 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
3240 {
3241 u32 state, xg_val = 0, gb_val = 0;
3242
3243 qlcnic_xg_set_xg0_mask(xg_val);
3244 qlcnic_xg_set_xg1_mask(xg_val);
3245 QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3246 qlcnic_gb_set_gb0_mask(gb_val);
3247 qlcnic_gb_set_gb1_mask(gb_val);
3248 qlcnic_gb_set_gb2_mask(gb_val);
3249 qlcnic_gb_set_gb3_mask(gb_val);
3250 QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3251 dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3252 " on all ports\n");
3253 adapter->need_fw_reset = 1;
3254
3255 if (qlcnic_api_lock(adapter))
3256 return;
3257
3258 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3259 if (state == QLCNIC_DEV_FAILED || state == QLCNIC_DEV_BADBAD) {
3260 netdev_err(adapter->netdev, "%s: Device is in FAILED state\n",
3261 __func__);
3262 qlcnic_api_unlock(adapter);
3263
3264 return;
3265 }
3266
3267 if (state == QLCNIC_DEV_READY) {
3268 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3269 QLCNIC_DEV_NEED_RESET);
3270 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3271 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3272 qlcnic_idc_debug_info(adapter, 0);
3273 }
3274
3275 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3276 QLCNIC_DEV_NPAR_NON_OPER);
3277 qlcnic_api_unlock(adapter);
3278 }
3279
3280 /* Transit to NPAR READY state from NPAR NOT READY state */
3281 static void
3282 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3283 {
3284 if (qlcnic_api_lock(adapter))
3285 return;
3286
3287 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3288 QLCNIC_DEV_NPAR_OPER);
3289 QLCDB(adapter, DRV, "NPAR operational state set\n");
3290
3291 qlcnic_api_unlock(adapter);
3292 }
3293
3294 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3295 work_func_t func, int delay)
3296 {
3297 if (test_bit(__QLCNIC_AER, &adapter->state))
3298 return;
3299
3300 INIT_DELAYED_WORK(&adapter->fw_work, func);
3301 queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3302 round_jiffies_relative(delay));
3303 }
3304
3305 static void
3306 qlcnic_attach_work(struct work_struct *work)
3307 {
3308 struct qlcnic_adapter *adapter = container_of(work,
3309 struct qlcnic_adapter, fw_work.work);
3310 struct net_device *netdev = adapter->netdev;
3311 u32 npar_state;
3312
3313 if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3314 npar_state = QLC_SHARED_REG_RD32(adapter,
3315 QLCNIC_CRB_DEV_NPAR_STATE);
3316 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3317 qlcnic_clr_all_drv_state(adapter, 0);
3318 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3319 qlcnic_schedule_work(adapter, qlcnic_attach_work,
3320 FW_POLL_DELAY);
3321 else
3322 goto attach;
3323 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3324 return;
3325 }
3326 attach:
3327 qlcnic_dcb_get_info(adapter);
3328
3329 if (netif_running(netdev)) {
3330 if (qlcnic_up(adapter, netdev))
3331 goto done;
3332
3333 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3334 }
3335
3336 done:
3337 netif_device_attach(netdev);
3338 adapter->fw_fail_cnt = 0;
3339 adapter->flags &= ~QLCNIC_FW_HANG;
3340 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3341 if (adapter->portnum == 0)
3342 qlcnic_set_drv_version(adapter);
3343
3344 if (!qlcnic_clr_drv_state(adapter))
3345 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3346 FW_POLL_DELAY);
3347 }
3348
3349 static int
3350 qlcnic_check_health(struct qlcnic_adapter *adapter)
3351 {
3352 u32 state = 0, heartbeat;
3353 u32 peg_status;
3354 int err = 0;
3355
3356 if (qlcnic_check_temp(adapter))
3357 goto detach;
3358
3359 if (adapter->need_fw_reset)
3360 qlcnic_dev_request_reset(adapter, 0);
3361
3362 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3363 if (state == QLCNIC_DEV_NEED_RESET) {
3364 qlcnic_set_npar_non_operational(adapter);
3365 adapter->need_fw_reset = 1;
3366 } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3367 goto detach;
3368
3369 heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3370 if (heartbeat != adapter->heartbeat) {
3371 adapter->heartbeat = heartbeat;
3372 adapter->fw_fail_cnt = 0;
3373 if (adapter->need_fw_reset)
3374 goto detach;
3375
3376 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset)
3377 qlcnic_reset_hw_context(adapter);
3378
3379 return 0;
3380 }
3381
3382 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3383 return 0;
3384
3385 adapter->flags |= QLCNIC_FW_HANG;
3386
3387 qlcnic_dev_request_reset(adapter, 0);
3388
3389 if (qlcnic_auto_fw_reset)
3390 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3391
3392 dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3393 peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3394 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3395 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3396 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3397 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3398 "PEG_NET_4_PC: 0x%x\n",
3399 peg_status,
3400 QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3401 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3402 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3403 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3404 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3405 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3406 if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3407 dev_err(&adapter->pdev->dev,
3408 "Firmware aborted with error code 0x00006700. "
3409 "Device is being reset.\n");
3410 detach:
3411 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3412 QLCNIC_DEV_NEED_RESET;
3413
3414 if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3415 &adapter->state)) {
3416
3417 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3418 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3419 }
3420
3421 return 1;
3422 }
3423
3424 void qlcnic_fw_poll_work(struct work_struct *work)
3425 {
3426 struct qlcnic_adapter *adapter = container_of(work,
3427 struct qlcnic_adapter, fw_work.work);
3428
3429 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3430 goto reschedule;
3431
3432
3433 if (qlcnic_check_health(adapter))
3434 return;
3435
3436 if (adapter->fhash.fnum)
3437 qlcnic_prune_lb_filters(adapter);
3438
3439 reschedule:
3440 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3441 }
3442
3443 static int qlcnic_is_first_func(struct pci_dev *pdev)
3444 {
3445 struct pci_dev *oth_pdev;
3446 int val = pdev->devfn;
3447
3448 while (val-- > 0) {
3449 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3450 (pdev->bus), pdev->bus->number,
3451 PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3452 if (!oth_pdev)
3453 continue;
3454
3455 if (oth_pdev->current_state != PCI_D3cold) {
3456 pci_dev_put(oth_pdev);
3457 return 0;
3458 }
3459 pci_dev_put(oth_pdev);
3460 }
3461 return 1;
3462 }
3463
3464 static int qlcnic_attach_func(struct pci_dev *pdev)
3465 {
3466 int err, first_func;
3467 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3468 struct net_device *netdev = adapter->netdev;
3469
3470 pdev->error_state = pci_channel_io_normal;
3471
3472 err = pci_enable_device(pdev);
3473 if (err)
3474 return err;
3475
3476 pci_set_master(pdev);
3477 pci_restore_state(pdev);
3478
3479 first_func = qlcnic_is_first_func(pdev);
3480
3481 if (qlcnic_api_lock(adapter))
3482 return -EINVAL;
3483
3484 if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3485 adapter->need_fw_reset = 1;
3486 set_bit(__QLCNIC_START_FW, &adapter->state);
3487 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3488 QLCNIC_DEV_INITIALIZING);
3489 QLCDB(adapter, DRV, "Restarting fw\n");
3490 }
3491 qlcnic_api_unlock(adapter);
3492
3493 err = qlcnic_start_firmware(adapter);
3494 if (err)
3495 return err;
3496
3497 qlcnic_clr_drv_state(adapter);
3498 kfree(adapter->msix_entries);
3499 adapter->msix_entries = NULL;
3500 err = qlcnic_setup_intr(adapter, 0, 0);
3501
3502 if (err) {
3503 kfree(adapter->msix_entries);
3504 netdev_err(netdev, "failed to setup interrupt\n");
3505 return err;
3506 }
3507
3508 if (netif_running(netdev)) {
3509 err = qlcnic_attach(adapter);
3510 if (err) {
3511 qlcnic_clr_all_drv_state(adapter, 1);
3512 clear_bit(__QLCNIC_AER, &adapter->state);
3513 netif_device_attach(netdev);
3514 return err;
3515 }
3516
3517 err = qlcnic_up(adapter, netdev);
3518 if (err)
3519 goto done;
3520
3521 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3522 }
3523 done:
3524 netif_device_attach(netdev);
3525 return err;
3526 }
3527
3528 pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3529 pci_channel_state_t state)
3530 {
3531 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3532 struct net_device *netdev = adapter->netdev;
3533
3534 if (state == pci_channel_io_perm_failure)
3535 return PCI_ERS_RESULT_DISCONNECT;
3536
3537 if (state == pci_channel_io_normal)
3538 return PCI_ERS_RESULT_RECOVERED;
3539
3540 set_bit(__QLCNIC_AER, &adapter->state);
3541 netif_device_detach(netdev);
3542
3543 cancel_delayed_work_sync(&adapter->fw_work);
3544
3545 if (netif_running(netdev))
3546 qlcnic_down(adapter, netdev);
3547
3548 qlcnic_detach(adapter);
3549 qlcnic_teardown_intr(adapter);
3550
3551 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3552
3553 pci_save_state(pdev);
3554 pci_disable_device(pdev);
3555
3556 return PCI_ERS_RESULT_NEED_RESET;
3557 }
3558
3559 pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3560 {
3561 return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3562 PCI_ERS_RESULT_RECOVERED;
3563 }
3564
3565 void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3566 {
3567 u32 state;
3568 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3569
3570 pci_cleanup_aer_uncorrect_error_status(pdev);
3571 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3572 if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3573 &adapter->state))
3574 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3575 FW_POLL_DELAY);
3576 }
3577
3578 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3579 pci_channel_state_t state)
3580 {
3581 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3582 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3583
3584 if (hw_ops->io_error_detected) {
3585 return hw_ops->io_error_detected(pdev, state);
3586 } else {
3587 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3588 return PCI_ERS_RESULT_DISCONNECT;
3589 }
3590 }
3591
3592 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3593 {
3594 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3595 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3596
3597 if (hw_ops->io_slot_reset) {
3598 return hw_ops->io_slot_reset(pdev);
3599 } else {
3600 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3601 return PCI_ERS_RESULT_DISCONNECT;
3602 }
3603 }
3604
3605 static void qlcnic_io_resume(struct pci_dev *pdev)
3606 {
3607 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3608 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3609
3610 if (hw_ops->io_resume)
3611 hw_ops->io_resume(pdev);
3612 else
3613 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3614 }
3615
3616
3617 static int
3618 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3619 {
3620 int err;
3621
3622 err = qlcnic_can_start_firmware(adapter);
3623 if (err)
3624 return err;
3625
3626 err = qlcnic_check_npar_opertional(adapter);
3627 if (err)
3628 return err;
3629
3630 err = qlcnic_initialize_nic(adapter);
3631 if (err)
3632 return err;
3633
3634 qlcnic_check_options(adapter);
3635
3636 err = qlcnic_set_eswitch_port_config(adapter);
3637 if (err)
3638 return err;
3639
3640 adapter->need_fw_reset = 0;
3641
3642 return err;
3643 }
3644
3645 int qlcnic_validate_max_tx_rings(struct qlcnic_adapter *adapter, u32 txq)
3646 {
3647 struct net_device *netdev = adapter->netdev;
3648 u8 max_hw = QLCNIC_MAX_TX_RINGS;
3649 u32 max_allowed;
3650
3651 if (!qlcnic_82xx_check(adapter)) {
3652 netdev_err(netdev, "No Multi TX-Q support\n");
3653 return -EINVAL;
3654 }
3655
3656 if (!qlcnic_use_msi_x && !qlcnic_use_msi) {
3657 netdev_err(netdev, "No Multi TX-Q support in INT-x mode\n");
3658 return -EINVAL;
3659 }
3660
3661 if (!qlcnic_check_multi_tx(adapter)) {
3662 netdev_err(netdev, "No Multi TX-Q support\n");
3663 return -EINVAL;
3664 }
3665
3666 if (txq > QLCNIC_MAX_TX_RINGS) {
3667 netdev_err(netdev, "Invalid ring count\n");
3668 return -EINVAL;
3669 }
3670
3671 max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3672 num_online_cpus()));
3673 if ((txq > max_allowed) || !is_power_of_2(txq)) {
3674 if (!is_power_of_2(txq))
3675 netdev_err(netdev,
3676 "TX queue should be a power of 2\n");
3677 if (txq > num_online_cpus())
3678 netdev_err(netdev,
3679 "Tx queue should not be higher than [%u], number of online CPUs in the system\n",
3680 num_online_cpus());
3681 netdev_err(netdev, "Unable to configure %u Tx rings\n", txq);
3682 return -EINVAL;
3683 }
3684
3685 return 0;
3686 }
3687
3688 int qlcnic_validate_max_rss(struct qlcnic_adapter *adapter,
3689 __u32 val)
3690 {
3691 struct net_device *netdev = adapter->netdev;
3692 u8 max_hw = adapter->ahw->max_rx_ques;
3693 u32 max_allowed;
3694
3695 if (qlcnic_82xx_check(adapter) && !qlcnic_use_msi_x &&
3696 !qlcnic_use_msi) {
3697 netdev_err(netdev, "No RSS support in INT-x mode\n");
3698 return -EINVAL;
3699 }
3700
3701 if (val > QLCNIC_MAX_SDS_RINGS) {
3702 netdev_err(netdev, "RSS value should not be higher than %u\n",
3703 QLCNIC_MAX_SDS_RINGS);
3704 return -EINVAL;
3705 }
3706
3707 max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3708 num_online_cpus()));
3709 if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3710 if (!is_power_of_2(val))
3711 netdev_err(netdev, "RSS value should be a power of 2\n");
3712
3713 if (val < 2)
3714 netdev_err(netdev, "RSS value should not be lower than 2\n");
3715
3716 if (val > max_hw)
3717 netdev_err(netdev,
3718 "RSS value should not be higher than[%u], the max RSS rings supported by the adapter\n",
3719 max_hw);
3720
3721 if (val > num_online_cpus())
3722 netdev_err(netdev,
3723 "RSS value should not be higher than[%u], number of online CPUs in the system\n",
3724 num_online_cpus());
3725
3726 netdev_err(netdev, "Unable to configure %u RSS rings\n", val);
3727
3728 return -EINVAL;
3729 }
3730 return 0;
3731 }
3732
3733 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, int txq)
3734 {
3735 int err;
3736 struct net_device *netdev = adapter->netdev;
3737 int num_msix;
3738
3739 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3740 return -EBUSY;
3741
3742 if (qlcnic_82xx_check(adapter) && !qlcnic_use_msi_x &&
3743 !qlcnic_use_msi) {
3744 netdev_err(netdev, "No RSS support in INT-x mode\n");
3745 return -EINVAL;
3746 }
3747
3748 netif_device_detach(netdev);
3749 if (netif_running(netdev))
3750 __qlcnic_down(adapter, netdev);
3751
3752 qlcnic_detach(adapter);
3753
3754 if (qlcnic_82xx_check(adapter)) {
3755 if (txq != 0)
3756 adapter->max_drv_tx_rings = txq;
3757
3758 if (qlcnic_check_multi_tx(adapter) &&
3759 (txq > adapter->max_drv_tx_rings))
3760 num_msix = adapter->max_drv_tx_rings;
3761 else
3762 num_msix = data;
3763 }
3764
3765 if (qlcnic_83xx_check(adapter)) {
3766 qlcnic_83xx_free_mbx_intr(adapter);
3767 qlcnic_83xx_enable_mbx_poll(adapter);
3768 }
3769
3770 netif_set_real_num_tx_queues(netdev, adapter->max_drv_tx_rings);
3771
3772 qlcnic_teardown_intr(adapter);
3773
3774 err = qlcnic_setup_intr(adapter, data, txq);
3775 if (err) {
3776 kfree(adapter->msix_entries);
3777 netdev_err(netdev, "failed to setup interrupt\n");
3778 return err;
3779 }
3780
3781 if (qlcnic_83xx_check(adapter)) {
3782 /* register for NIC IDC AEN Events */
3783 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3784 err = qlcnic_83xx_setup_mbx_intr(adapter);
3785 qlcnic_83xx_disable_mbx_poll(adapter);
3786 if (err) {
3787 dev_err(&adapter->pdev->dev,
3788 "failed to setup mbx interrupt\n");
3789 goto done;
3790 }
3791 }
3792
3793 if (netif_running(netdev)) {
3794 err = qlcnic_attach(adapter);
3795 if (err)
3796 goto done;
3797 err = __qlcnic_up(adapter, netdev);
3798 if (err)
3799 goto done;
3800 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3801 }
3802 done:
3803 netif_device_attach(netdev);
3804 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3805 return err;
3806 }
3807
3808 #ifdef CONFIG_INET
3809
3810 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3811
3812 static void
3813 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3814 struct net_device *dev, unsigned long event)
3815 {
3816 struct in_device *indev;
3817
3818 indev = in_dev_get(dev);
3819 if (!indev)
3820 return;
3821
3822 for_ifa(indev) {
3823 switch (event) {
3824 case NETDEV_UP:
3825 qlcnic_config_ipaddr(adapter,
3826 ifa->ifa_address, QLCNIC_IP_UP);
3827 break;
3828 case NETDEV_DOWN:
3829 qlcnic_config_ipaddr(adapter,
3830 ifa->ifa_address, QLCNIC_IP_DOWN);
3831 break;
3832 default:
3833 break;
3834 }
3835 } endfor_ifa(indev);
3836
3837 in_dev_put(indev);
3838 }
3839
3840 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3841 {
3842 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3843 struct net_device *dev;
3844 u16 vid;
3845
3846 qlcnic_config_indev_addr(adapter, netdev, event);
3847
3848 rcu_read_lock();
3849 for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3850 dev = __vlan_find_dev_deep(netdev, htons(ETH_P_8021Q), vid);
3851 if (!dev)
3852 continue;
3853 qlcnic_config_indev_addr(adapter, dev, event);
3854 }
3855 rcu_read_unlock();
3856 }
3857
3858 static int qlcnic_netdev_event(struct notifier_block *this,
3859 unsigned long event, void *ptr)
3860 {
3861 struct qlcnic_adapter *adapter;
3862 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3863
3864 recheck:
3865 if (dev == NULL)
3866 goto done;
3867
3868 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3869 dev = vlan_dev_real_dev(dev);
3870 goto recheck;
3871 }
3872
3873 if (!is_qlcnic_netdev(dev))
3874 goto done;
3875
3876 adapter = netdev_priv(dev);
3877
3878 if (!adapter)
3879 goto done;
3880
3881 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3882 goto done;
3883
3884 qlcnic_config_indev_addr(adapter, dev, event);
3885 done:
3886 return NOTIFY_DONE;
3887 }
3888
3889 static int
3890 qlcnic_inetaddr_event(struct notifier_block *this,
3891 unsigned long event, void *ptr)
3892 {
3893 struct qlcnic_adapter *adapter;
3894 struct net_device *dev;
3895
3896 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3897
3898 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3899
3900 recheck:
3901 if (dev == NULL)
3902 goto done;
3903
3904 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3905 dev = vlan_dev_real_dev(dev);
3906 goto recheck;
3907 }
3908
3909 if (!is_qlcnic_netdev(dev))
3910 goto done;
3911
3912 adapter = netdev_priv(dev);
3913
3914 if (!adapter)
3915 goto done;
3916
3917 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3918 goto done;
3919
3920 switch (event) {
3921 case NETDEV_UP:
3922 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3923
3924 break;
3925 case NETDEV_DOWN:
3926 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3927
3928 break;
3929 default:
3930 break;
3931 }
3932
3933 done:
3934 return NOTIFY_DONE;
3935 }
3936
3937 static struct notifier_block qlcnic_netdev_cb = {
3938 .notifier_call = qlcnic_netdev_event,
3939 };
3940
3941 static struct notifier_block qlcnic_inetaddr_cb = {
3942 .notifier_call = qlcnic_inetaddr_event,
3943 };
3944 #else
3945 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3946 { }
3947 #endif
3948 static const struct pci_error_handlers qlcnic_err_handler = {
3949 .error_detected = qlcnic_io_error_detected,
3950 .slot_reset = qlcnic_io_slot_reset,
3951 .resume = qlcnic_io_resume,
3952 };
3953
3954 static struct pci_driver qlcnic_driver = {
3955 .name = qlcnic_driver_name,
3956 .id_table = qlcnic_pci_tbl,
3957 .probe = qlcnic_probe,
3958 .remove = qlcnic_remove,
3959 #ifdef CONFIG_PM
3960 .suspend = qlcnic_suspend,
3961 .resume = qlcnic_resume,
3962 #endif
3963 .shutdown = qlcnic_shutdown,
3964 .err_handler = &qlcnic_err_handler,
3965 #ifdef CONFIG_QLCNIC_SRIOV
3966 .sriov_configure = qlcnic_pci_sriov_configure,
3967 #endif
3968
3969 };
3970
3971 static int __init qlcnic_init_module(void)
3972 {
3973 int ret;
3974
3975 printk(KERN_INFO "%s\n", qlcnic_driver_string);
3976
3977 #ifdef CONFIG_INET
3978 register_netdevice_notifier(&qlcnic_netdev_cb);
3979 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3980 #endif
3981
3982 ret = pci_register_driver(&qlcnic_driver);
3983 if (ret) {
3984 #ifdef CONFIG_INET
3985 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3986 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3987 #endif
3988 }
3989
3990 return ret;
3991 }
3992
3993 module_init(qlcnic_init_module);
3994
3995 static void __exit qlcnic_exit_module(void)
3996 {
3997 pci_unregister_driver(&qlcnic_driver);
3998
3999 #ifdef CONFIG_INET
4000 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4001 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4002 #endif
4003 }
4004
4005 module_exit(qlcnic_exit_module);
Linux kernel - Deliverables
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