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Merge tag 'gpio-v3.13-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...
[linux-2.6.git] / drivers / net / ethernet / qlogic / qlcnic / qlcnic_main.c
blob05c1eef8df1325359ef1bf73df8344492a95876d
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 int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
552 {
553 struct qlcnic_hardware_context *ahw = adapter->ahw;
554
555 if (qlcnic_82xx_check(adapter) &&
556 (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
557 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
558 return 0;
559 } else {
560 return 1;
561 }
562 }
563
564 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
565 int queue_type)
566 {
567 int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
568
569 if (queue_type == QLCNIC_RX_QUEUE)
570 max_rings = adapter->max_sds_rings;
571 else if (queue_type == QLCNIC_TX_QUEUE)
572 max_rings = adapter->max_tx_rings;
573
574 num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
575 max_rings));
576
577 if (ring_cnt > num_rings)
578 return num_rings;
579 else
580 return ring_cnt;
581 }
582
583 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
584 {
585 /* 83xx adapter does not have max_tx_rings intialized in probe */
586 if (adapter->max_tx_rings)
587 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
588 QLCNIC_TX_QUEUE);
589 else
590 adapter->drv_tx_rings = tx_cnt;
591
592 dev_info(&adapter->pdev->dev, "Set %d Tx rings\n",
593 adapter->drv_tx_rings);
594 }
595
596 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
597 {
598 /* 83xx adapter does not have max_sds_rings intialized in probe */
599 if (adapter->max_sds_rings)
600 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
601 QLCNIC_RX_QUEUE);
602 else
603 adapter->drv_sds_rings = rx_cnt;
604
605 dev_info(&adapter->pdev->dev, "Set %d SDS rings\n",
606 adapter->drv_sds_rings);
607 }
608
609 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
610 {
611 struct pci_dev *pdev = adapter->pdev;
612 int drv_tx_rings, drv_sds_rings, tx_vector;
613 int err = -1, i;
614
615 if (adapter->flags & QLCNIC_TX_INTR_SHARED) {
616 drv_tx_rings = 0;
617 tx_vector = 0;
618 } else {
619 drv_tx_rings = adapter->drv_tx_rings;
620 tx_vector = 1;
621 }
622
623 if (!adapter->msix_entries) {
624 adapter->msix_entries = kcalloc(num_msix,
625 sizeof(struct msix_entry),
626 GFP_KERNEL);
627 if (!adapter->msix_entries)
628 return -ENOMEM;
629 }
630
631 adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
632 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
633
634 if (adapter->ahw->msix_supported) {
635 enable_msix:
636 for (i = 0; i < num_msix; i++)
637 adapter->msix_entries[i].entry = i;
638 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
639 if (err == 0) {
640 adapter->flags |= QLCNIC_MSIX_ENABLED;
641 if (qlcnic_83xx_check(adapter)) {
642 adapter->ahw->num_msix = num_msix;
643 /* subtract mail box and tx ring vectors */
644 adapter->drv_sds_rings = num_msix -
645 drv_tx_rings - 1;
646 } else {
647 adapter->ahw->num_msix = num_msix;
648 if (qlcnic_check_multi_tx(adapter) &&
649 !adapter->ahw->diag_test &&
650 (adapter->drv_tx_rings > 1))
651 drv_sds_rings = num_msix - drv_tx_rings;
652 else
653 drv_sds_rings = num_msix;
654
655 adapter->drv_sds_rings = drv_sds_rings;
656 }
657 dev_info(&pdev->dev, "using msi-x interrupts\n");
658 return err;
659 } else if (err > 0) {
660 dev_info(&pdev->dev,
661 "Unable to allocate %d MSI-X interrupt vectors\n",
662 num_msix);
663 if (qlcnic_83xx_check(adapter)) {
664 if (err < (QLC_83XX_MINIMUM_VECTOR - tx_vector))
665 return err;
666 err -= drv_tx_rings + 1;
667 num_msix = rounddown_pow_of_two(err);
668 num_msix += drv_tx_rings + 1;
669 } else {
670 num_msix = rounddown_pow_of_two(err);
671 if (qlcnic_check_multi_tx(adapter))
672 num_msix += drv_tx_rings;
673 }
674
675 if (num_msix) {
676 dev_info(&pdev->dev,
677 "Trying to allocate %d MSI-X interrupt vectors\n",
678 num_msix);
679 goto enable_msix;
680 }
681 } else {
682 dev_info(&pdev->dev,
683 "Unable to allocate %d MSI-X interrupt vectors\n",
684 num_msix);
685 }
686 }
687
688 return err;
689 }
690
691 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
692 {
693 int err = 0;
694 u32 offset, mask_reg;
695 const struct qlcnic_legacy_intr_set *legacy_intrp;
696 struct qlcnic_hardware_context *ahw = adapter->ahw;
697 struct pci_dev *pdev = adapter->pdev;
698
699 if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
700 adapter->flags |= QLCNIC_MSI_ENABLED;
701 offset = msi_tgt_status[adapter->ahw->pci_func];
702 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
703 offset);
704 dev_info(&pdev->dev, "using msi interrupts\n");
705 adapter->msix_entries[0].vector = pdev->irq;
706 return err;
707 }
708
709 if (qlcnic_use_msi || qlcnic_use_msi_x)
710 return -EOPNOTSUPP;
711
712 legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
713 adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
714 offset = legacy_intrp->tgt_status_reg;
715 adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
716 mask_reg = legacy_intrp->tgt_mask_reg;
717 adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
718 adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
719 adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
720 dev_info(&pdev->dev, "using legacy interrupts\n");
721 adapter->msix_entries[0].vector = pdev->irq;
722 return err;
723 }
724
725 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
726 {
727 int num_msix, err = 0;
728
729 num_msix = adapter->drv_sds_rings;
730
731 if (qlcnic_check_multi_tx(adapter))
732 num_msix += adapter->drv_tx_rings;
733
734 err = qlcnic_enable_msix(adapter, num_msix);
735 if (err == -ENOMEM)
736 return err;
737
738 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
739 qlcnic_disable_multi_tx(adapter);
740
741 err = qlcnic_enable_msi_legacy(adapter);
742 if (!err)
743 return err;
744 }
745
746 return 0;
747 }
748
749 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
750 {
751 struct qlcnic_hardware_context *ahw = adapter->ahw;
752 int err, i;
753
754 if (qlcnic_check_multi_tx(adapter) &&
755 !ahw->diag_test &&
756 (adapter->flags & QLCNIC_MSIX_ENABLED)) {
757 ahw->intr_tbl = vzalloc(ahw->num_msix *
758 sizeof(struct qlcnic_intrpt_config));
759 if (!ahw->intr_tbl)
760 return -ENOMEM;
761
762 for (i = 0; i < ahw->num_msix; i++) {
763 ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
764 ahw->intr_tbl[i].id = i;
765 ahw->intr_tbl[i].src = 0;
766 }
767
768 err = qlcnic_82xx_config_intrpt(adapter, 1);
769 if (err)
770 dev_err(&adapter->pdev->dev,
771 "Failed to configure Interrupt for %d vector\n",
772 ahw->num_msix);
773 return err;
774 }
775
776 return 0;
777 }
778
779 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
780 {
781 if (adapter->flags & QLCNIC_MSIX_ENABLED)
782 pci_disable_msix(adapter->pdev);
783 if (adapter->flags & QLCNIC_MSI_ENABLED)
784 pci_disable_msi(adapter->pdev);
785
786 kfree(adapter->msix_entries);
787 adapter->msix_entries = NULL;
788
789 if (adapter->ahw->intr_tbl) {
790 vfree(adapter->ahw->intr_tbl);
791 adapter->ahw->intr_tbl = NULL;
792 }
793 }
794
795 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
796 {
797 if (ahw->pci_base0 != NULL)
798 iounmap(ahw->pci_base0);
799 }
800
801 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
802 {
803 struct qlcnic_pci_info *pci_info;
804 int ret;
805
806 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
807 switch (adapter->ahw->port_type) {
808 case QLCNIC_GBE:
809 adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_GBE_PORTS;
810 break;
811 case QLCNIC_XGBE:
812 adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_XG_PORTS;
813 break;
814 }
815 return 0;
816 }
817
818 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
819 return 0;
820
821 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
822 if (!pci_info)
823 return -ENOMEM;
824
825 ret = qlcnic_get_pci_info(adapter, pci_info);
826 kfree(pci_info);
827 return ret;
828 }
829
830 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
831 {
832 bool ret = false;
833
834 if (qlcnic_84xx_check(adapter)) {
835 ret = true;
836 } else if (qlcnic_83xx_check(adapter)) {
837 if (adapter->ahw->extra_capability[0] &
838 QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
839 ret = true;
840 else
841 ret = false;
842 }
843
844 return ret;
845 }
846
847 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
848 {
849 struct qlcnic_pci_info *pci_info;
850 int i, id = 0, ret = 0, j = 0;
851 u16 act_pci_func;
852 u8 pfn;
853
854 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
855 if (!pci_info)
856 return -ENOMEM;
857
858 ret = qlcnic_get_pci_info(adapter, pci_info);
859 if (ret)
860 goto err_pci_info;
861
862 act_pci_func = adapter->ahw->act_pci_func;
863
864 adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
865 act_pci_func, GFP_KERNEL);
866 if (!adapter->npars) {
867 ret = -ENOMEM;
868 goto err_pci_info;
869 }
870
871 adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
872 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
873 if (!adapter->eswitch) {
874 ret = -ENOMEM;
875 goto err_npars;
876 }
877
878 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
879 pfn = pci_info[i].id;
880
881 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
882 ret = QL_STATUS_INVALID_PARAM;
883 goto err_eswitch;
884 }
885
886 if (!pci_info[i].active ||
887 (pci_info[i].type != QLCNIC_TYPE_NIC))
888 continue;
889
890 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
891 if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
892 &id))
893 adapter->npars[j].eswitch_status = true;
894 else
895 continue;
896 } else {
897 adapter->npars[j].eswitch_status = true;
898 }
899
900 adapter->npars[j].pci_func = pfn;
901 adapter->npars[j].active = (u8)pci_info[i].active;
902 adapter->npars[j].type = (u8)pci_info[i].type;
903 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
904 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
905 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
906
907 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
908 j++;
909 }
910
911 /* Update eSwitch status for adapters without per port eSwitch
912 * configuration capability
913 */
914 if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
915 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
916 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
917 }
918
919 kfree(pci_info);
920 return 0;
921
922 err_eswitch:
923 kfree(adapter->eswitch);
924 adapter->eswitch = NULL;
925 err_npars:
926 kfree(adapter->npars);
927 adapter->npars = NULL;
928 err_pci_info:
929 kfree(pci_info);
930
931 return ret;
932 }
933
934 static int
935 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
936 {
937 u8 id;
938 int ret;
939 u32 data = QLCNIC_MGMT_FUNC;
940 struct qlcnic_hardware_context *ahw = adapter->ahw;
941
942 ret = qlcnic_api_lock(adapter);
943 if (ret)
944 goto err_lock;
945
946 id = ahw->pci_func;
947 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
948 data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
949 QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
950 QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
951 qlcnic_api_unlock(adapter);
952 err_lock:
953 return ret;
954 }
955
956 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
957 const struct pci_device_id *ent)
958 {
959 u32 op_mode, priv_level;
960
961 /* Determine FW API version */
962 adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
963 QLCNIC_FW_API);
964
965 /* Find PCI function number */
966 qlcnic_get_func_no(adapter);
967
968 /* Determine function privilege level */
969 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
970 if (op_mode == QLC_DEV_DRV_DEFAULT)
971 priv_level = QLCNIC_MGMT_FUNC;
972 else
973 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
974
975 if (priv_level == QLCNIC_NON_PRIV_FUNC) {
976 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
977 dev_info(&adapter->pdev->dev,
978 "HAL Version: %d Non Privileged function\n",
979 adapter->ahw->fw_hal_version);
980 adapter->nic_ops = &qlcnic_vf_ops;
981 } else
982 adapter->nic_ops = &qlcnic_ops;
983 }
984
985 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
986 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
987 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
988 {
989 switch (dev_id) {
990 case PCI_DEVICE_ID_QLOGIC_QLE824X:
991 *bar = QLCNIC_82XX_BAR0_LENGTH;
992 break;
993 case PCI_DEVICE_ID_QLOGIC_QLE834X:
994 case PCI_DEVICE_ID_QLOGIC_QLE844X:
995 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
996 case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
997 *bar = QLCNIC_83XX_BAR0_LENGTH;
998 break;
999 default:
1000 *bar = 0;
1001 }
1002 }
1003
1004 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1005 struct qlcnic_hardware_context *ahw)
1006 {
1007 u32 offset;
1008 void __iomem *mem_ptr0 = NULL;
1009 unsigned long mem_len, pci_len0 = 0, bar0_len;
1010
1011 /* remap phys address */
1012 mem_len = pci_resource_len(pdev, 0);
1013
1014 qlcnic_get_bar_length(pdev->device, &bar0_len);
1015 if (mem_len >= bar0_len) {
1016
1017 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1018 if (mem_ptr0 == NULL) {
1019 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1020 return -EIO;
1021 }
1022 pci_len0 = mem_len;
1023 } else {
1024 return -EIO;
1025 }
1026
1027 dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1028
1029 ahw->pci_base0 = mem_ptr0;
1030 ahw->pci_len0 = pci_len0;
1031 offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1032 qlcnic_get_ioaddr(ahw, offset);
1033
1034 return 0;
1035 }
1036
1037 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1038 int index)
1039 {
1040 struct pci_dev *pdev = adapter->pdev;
1041 unsigned short subsystem_vendor;
1042 bool ret = true;
1043
1044 subsystem_vendor = pdev->subsystem_vendor;
1045
1046 if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1047 pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1048 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1049 qlcnic_boards[index].sub_device == pdev->subsystem_device)
1050 ret = true;
1051 else
1052 ret = false;
1053 }
1054
1055 return ret;
1056 }
1057
1058 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1059 {
1060 struct pci_dev *pdev = adapter->pdev;
1061 int i, found = 0;
1062
1063 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1064 if (qlcnic_boards[i].vendor == pdev->vendor &&
1065 qlcnic_boards[i].device == pdev->device &&
1066 qlcnic_validate_subsystem_id(adapter, i)) {
1067 found = 1;
1068 break;
1069 }
1070 }
1071
1072 if (!found)
1073 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1074 else
1075 sprintf(name, "%pM: %s" , adapter->mac_addr,
1076 qlcnic_boards[i].short_name);
1077 }
1078
1079 static void
1080 qlcnic_check_options(struct qlcnic_adapter *adapter)
1081 {
1082 int err;
1083 u32 fw_major, fw_minor, fw_build, prev_fw_version;
1084 struct pci_dev *pdev = adapter->pdev;
1085 struct qlcnic_hardware_context *ahw = adapter->ahw;
1086 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1087
1088 prev_fw_version = adapter->fw_version;
1089
1090 fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1091 fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1092 fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1093
1094 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1095
1096 err = qlcnic_get_board_info(adapter);
1097 if (err) {
1098 dev_err(&pdev->dev, "Error getting board config info.\n");
1099 return;
1100 }
1101 if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1102 if (fw_dump->tmpl_hdr == NULL ||
1103 adapter->fw_version > prev_fw_version) {
1104 if (fw_dump->tmpl_hdr)
1105 vfree(fw_dump->tmpl_hdr);
1106 if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1107 dev_info(&pdev->dev,
1108 "Supports FW dump capability\n");
1109 }
1110 }
1111
1112 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1113 QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1114
1115 if (adapter->ahw->port_type == QLCNIC_XGBE) {
1116 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1117 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1118 adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1119 } else {
1120 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1121 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1122 }
1123
1124 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1125 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1126
1127 } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1128 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1129 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1130 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1131 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1132 }
1133
1134 adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1135
1136 adapter->num_txd = MAX_CMD_DESCRIPTORS;
1137
1138 adapter->max_rds_rings = MAX_RDS_RINGS;
1139 }
1140
1141 static int
1142 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1143 {
1144 struct qlcnic_info nic_info;
1145 int err = 0;
1146
1147 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1148 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1149 if (err)
1150 return err;
1151
1152 adapter->ahw->physical_port = (u8)nic_info.phys_port;
1153 adapter->ahw->switch_mode = nic_info.switch_mode;
1154 adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1155 adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1156 adapter->ahw->capabilities = nic_info.capabilities;
1157
1158 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1159 u32 temp;
1160 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1161 if (err == -EIO)
1162 return err;
1163 adapter->ahw->extra_capability[0] = temp;
1164 } else {
1165 adapter->ahw->extra_capability[0] = 0;
1166 }
1167
1168 adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1169 adapter->ahw->max_mtu = nic_info.max_mtu;
1170
1171 if (adapter->ahw->capabilities & BIT_6) {
1172 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1173 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1174 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1175 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1176
1177 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1178 } else {
1179 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1180 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1181 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1182 }
1183
1184 return err;
1185 }
1186
1187 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1188 struct qlcnic_esw_func_cfg *esw_cfg)
1189 {
1190 if (esw_cfg->discard_tagged)
1191 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1192 else
1193 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1194
1195 if (esw_cfg->vlan_id) {
1196 adapter->rx_pvid = esw_cfg->vlan_id;
1197 adapter->tx_pvid = esw_cfg->vlan_id;
1198 } else {
1199 adapter->rx_pvid = 0;
1200 adapter->tx_pvid = 0;
1201 }
1202 }
1203
1204 static int
1205 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1206 {
1207 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1208 int err;
1209
1210 if (qlcnic_sriov_vf_check(adapter)) {
1211 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1212 if (err) {
1213 netdev_err(netdev,
1214 "Cannot add VLAN filter for VLAN id %d, err=%d",
1215 vid, err);
1216 return err;
1217 }
1218 }
1219
1220 set_bit(vid, adapter->vlans);
1221 return 0;
1222 }
1223
1224 static int
1225 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1226 {
1227 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1228 int err;
1229
1230 if (qlcnic_sriov_vf_check(adapter)) {
1231 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1232 if (err) {
1233 netdev_err(netdev,
1234 "Cannot delete VLAN filter for VLAN id %d, err=%d",
1235 vid, err);
1236 return err;
1237 }
1238 }
1239
1240 qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1241 clear_bit(vid, adapter->vlans);
1242 return 0;
1243 }
1244
1245 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1246 struct qlcnic_esw_func_cfg *esw_cfg)
1247 {
1248 adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1249 QLCNIC_PROMISC_DISABLED);
1250
1251 if (esw_cfg->mac_anti_spoof)
1252 adapter->flags |= QLCNIC_MACSPOOF;
1253
1254 if (!esw_cfg->mac_override)
1255 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1256
1257 if (!esw_cfg->promisc_mode)
1258 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1259 }
1260
1261 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1262 {
1263 struct qlcnic_esw_func_cfg esw_cfg;
1264
1265 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1266 return 0;
1267
1268 esw_cfg.pci_func = adapter->ahw->pci_func;
1269 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1270 return -EIO;
1271 qlcnic_set_vlan_config(adapter, &esw_cfg);
1272 qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1273 qlcnic_set_netdev_features(adapter, &esw_cfg);
1274
1275 return 0;
1276 }
1277
1278 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1279 struct qlcnic_esw_func_cfg *esw_cfg)
1280 {
1281 struct net_device *netdev = adapter->netdev;
1282
1283 if (qlcnic_83xx_check(adapter))
1284 return;
1285
1286 adapter->offload_flags = esw_cfg->offload_flags;
1287 adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1288 netdev_update_features(netdev);
1289 adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1290 }
1291
1292 static int
1293 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1294 {
1295 u32 op_mode, priv_level;
1296 int err = 0;
1297
1298 err = qlcnic_initialize_nic(adapter);
1299 if (err)
1300 return err;
1301
1302 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1303 return 0;
1304
1305 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1306 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1307
1308 if (op_mode == QLC_DEV_DRV_DEFAULT)
1309 priv_level = QLCNIC_MGMT_FUNC;
1310 else
1311 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1312
1313 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1314 if (priv_level == QLCNIC_MGMT_FUNC) {
1315 adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1316 err = qlcnic_init_pci_info(adapter);
1317 if (err)
1318 return err;
1319 /* Set privilege level for other functions */
1320 qlcnic_set_function_modes(adapter);
1321 dev_info(&adapter->pdev->dev,
1322 "HAL Version: %d, Management function\n",
1323 adapter->ahw->fw_hal_version);
1324 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1325 adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1326 dev_info(&adapter->pdev->dev,
1327 "HAL Version: %d, Privileged function\n",
1328 adapter->ahw->fw_hal_version);
1329 }
1330 } else {
1331 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1332 }
1333
1334 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1335
1336 return err;
1337 }
1338
1339 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1340 {
1341 struct qlcnic_esw_func_cfg esw_cfg;
1342 struct qlcnic_npar_info *npar;
1343 u8 i;
1344
1345 if (adapter->need_fw_reset)
1346 return 0;
1347
1348 for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1349 if (!adapter->npars[i].eswitch_status)
1350 continue;
1351
1352 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1353 esw_cfg.pci_func = adapter->npars[i].pci_func;
1354 esw_cfg.mac_override = BIT_0;
1355 esw_cfg.promisc_mode = BIT_0;
1356 if (qlcnic_82xx_check(adapter)) {
1357 esw_cfg.offload_flags = BIT_0;
1358 if (QLCNIC_IS_TSO_CAPABLE(adapter))
1359 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1360 }
1361 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1362 return -EIO;
1363 npar = &adapter->npars[i];
1364 npar->pvid = esw_cfg.vlan_id;
1365 npar->mac_override = esw_cfg.mac_override;
1366 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1367 npar->discard_tagged = esw_cfg.discard_tagged;
1368 npar->promisc_mode = esw_cfg.promisc_mode;
1369 npar->offload_flags = esw_cfg.offload_flags;
1370 }
1371
1372 return 0;
1373 }
1374
1375
1376 static int
1377 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1378 struct qlcnic_npar_info *npar, int pci_func)
1379 {
1380 struct qlcnic_esw_func_cfg esw_cfg;
1381 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1382 esw_cfg.pci_func = pci_func;
1383 esw_cfg.vlan_id = npar->pvid;
1384 esw_cfg.mac_override = npar->mac_override;
1385 esw_cfg.discard_tagged = npar->discard_tagged;
1386 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1387 esw_cfg.offload_flags = npar->offload_flags;
1388 esw_cfg.promisc_mode = npar->promisc_mode;
1389 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1390 return -EIO;
1391
1392 esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1393 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1394 return -EIO;
1395
1396 return 0;
1397 }
1398
1399 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1400 {
1401 int i, err;
1402 struct qlcnic_npar_info *npar;
1403 struct qlcnic_info nic_info;
1404 u8 pci_func;
1405
1406 if (qlcnic_82xx_check(adapter))
1407 if (!adapter->need_fw_reset)
1408 return 0;
1409
1410 /* Set the NPAR config data after FW reset */
1411 for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1412 npar = &adapter->npars[i];
1413 pci_func = npar->pci_func;
1414 if (!adapter->npars[i].eswitch_status)
1415 continue;
1416
1417 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1418 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1419 if (err)
1420 return err;
1421 nic_info.min_tx_bw = npar->min_bw;
1422 nic_info.max_tx_bw = npar->max_bw;
1423 err = qlcnic_set_nic_info(adapter, &nic_info);
1424 if (err)
1425 return err;
1426
1427 if (npar->enable_pm) {
1428 err = qlcnic_config_port_mirroring(adapter,
1429 npar->dest_npar, 1,
1430 pci_func);
1431 if (err)
1432 return err;
1433 }
1434 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1435 if (err)
1436 return err;
1437 }
1438 return 0;
1439 }
1440
1441 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1442 {
1443 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1444 u32 npar_state;
1445
1446 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1447 return 0;
1448
1449 npar_state = QLC_SHARED_REG_RD32(adapter,
1450 QLCNIC_CRB_DEV_NPAR_STATE);
1451 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1452 msleep(1000);
1453 npar_state = QLC_SHARED_REG_RD32(adapter,
1454 QLCNIC_CRB_DEV_NPAR_STATE);
1455 }
1456 if (!npar_opt_timeo) {
1457 dev_err(&adapter->pdev->dev,
1458 "Waiting for NPAR state to operational timeout\n");
1459 return -EIO;
1460 }
1461 return 0;
1462 }
1463
1464 static int
1465 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1466 {
1467 int err;
1468
1469 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1470 adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1471 return 0;
1472
1473 err = qlcnic_set_default_offload_settings(adapter);
1474 if (err)
1475 return err;
1476
1477 err = qlcnic_reset_npar_config(adapter);
1478 if (err)
1479 return err;
1480
1481 qlcnic_dev_set_npar_ready(adapter);
1482
1483 return err;
1484 }
1485
1486 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1487 {
1488 int err;
1489
1490 err = qlcnic_can_start_firmware(adapter);
1491 if (err < 0)
1492 return err;
1493 else if (!err)
1494 goto check_fw_status;
1495
1496 if (qlcnic_load_fw_file)
1497 qlcnic_request_firmware(adapter);
1498 else {
1499 err = qlcnic_check_flash_fw_ver(adapter);
1500 if (err)
1501 goto err_out;
1502
1503 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1504 }
1505
1506 err = qlcnic_need_fw_reset(adapter);
1507 if (err == 0)
1508 goto check_fw_status;
1509
1510 err = qlcnic_pinit_from_rom(adapter);
1511 if (err)
1512 goto err_out;
1513
1514 err = qlcnic_load_firmware(adapter);
1515 if (err)
1516 goto err_out;
1517
1518 qlcnic_release_firmware(adapter);
1519 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1520
1521 check_fw_status:
1522 err = qlcnic_check_fw_status(adapter);
1523 if (err)
1524 goto err_out;
1525
1526 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1527 qlcnic_idc_debug_info(adapter, 1);
1528 err = qlcnic_check_eswitch_mode(adapter);
1529 if (err) {
1530 dev_err(&adapter->pdev->dev,
1531 "Memory allocation failed for eswitch\n");
1532 goto err_out;
1533 }
1534 err = qlcnic_set_mgmt_operations(adapter);
1535 if (err)
1536 goto err_out;
1537
1538 qlcnic_check_options(adapter);
1539 adapter->need_fw_reset = 0;
1540
1541 qlcnic_release_firmware(adapter);
1542 return 0;
1543
1544 err_out:
1545 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1546 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1547
1548 qlcnic_release_firmware(adapter);
1549 return err;
1550 }
1551
1552 static int
1553 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1554 {
1555 irq_handler_t handler;
1556 struct qlcnic_host_sds_ring *sds_ring;
1557 struct qlcnic_host_tx_ring *tx_ring;
1558 int err, ring, num_sds_rings;
1559
1560 unsigned long flags = 0;
1561 struct net_device *netdev = adapter->netdev;
1562 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1563
1564 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1565 if (qlcnic_82xx_check(adapter))
1566 handler = qlcnic_tmp_intr;
1567 else
1568 handler = qlcnic_83xx_tmp_intr;
1569 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1570 flags |= IRQF_SHARED;
1571
1572 } else {
1573 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1574 handler = qlcnic_msix_intr;
1575 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1576 handler = qlcnic_msi_intr;
1577 else {
1578 flags |= IRQF_SHARED;
1579 if (qlcnic_82xx_check(adapter))
1580 handler = qlcnic_intr;
1581 else
1582 handler = qlcnic_83xx_intr;
1583 }
1584 }
1585 adapter->irq = netdev->irq;
1586
1587 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1588 if (qlcnic_82xx_check(adapter) ||
1589 (qlcnic_83xx_check(adapter) &&
1590 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1591 num_sds_rings = adapter->drv_sds_rings;
1592 for (ring = 0; ring < num_sds_rings; ring++) {
1593 sds_ring = &recv_ctx->sds_rings[ring];
1594 if (qlcnic_82xx_check(adapter) &&
1595 !qlcnic_check_multi_tx(adapter) &&
1596 (ring == (num_sds_rings - 1))) {
1597 if (!(adapter->flags &
1598 QLCNIC_MSIX_ENABLED))
1599 snprintf(sds_ring->name,
1600 sizeof(sds_ring->name),
1601 "qlcnic");
1602 else
1603 snprintf(sds_ring->name,
1604 sizeof(sds_ring->name),
1605 "%s-tx-0-rx-%d",
1606 netdev->name, ring);
1607 } else {
1608 snprintf(sds_ring->name,
1609 sizeof(sds_ring->name),
1610 "%s-rx-%d",
1611 netdev->name, ring);
1612 }
1613 err = request_irq(sds_ring->irq, handler, flags,
1614 sds_ring->name, sds_ring);
1615 if (err)
1616 return err;
1617 }
1618 }
1619 if ((qlcnic_82xx_check(adapter) &&
1620 qlcnic_check_multi_tx(adapter)) ||
1621 (qlcnic_83xx_check(adapter) &&
1622 (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1623 !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1624 handler = qlcnic_msix_tx_intr;
1625 for (ring = 0; ring < adapter->drv_tx_rings;
1626 ring++) {
1627 tx_ring = &adapter->tx_ring[ring];
1628 snprintf(tx_ring->name, sizeof(tx_ring->name),
1629 "%s-tx-%d", netdev->name, ring);
1630 err = request_irq(tx_ring->irq, handler, flags,
1631 tx_ring->name, tx_ring);
1632 if (err)
1633 return err;
1634 }
1635 }
1636 }
1637 return 0;
1638 }
1639
1640 static void
1641 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1642 {
1643 int ring;
1644 struct qlcnic_host_sds_ring *sds_ring;
1645 struct qlcnic_host_tx_ring *tx_ring;
1646
1647 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1648
1649 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1650 if (qlcnic_82xx_check(adapter) ||
1651 (qlcnic_83xx_check(adapter) &&
1652 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1653 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1654 sds_ring = &recv_ctx->sds_rings[ring];
1655 free_irq(sds_ring->irq, sds_ring);
1656 }
1657 }
1658 if ((qlcnic_83xx_check(adapter) &&
1659 !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1660 (qlcnic_82xx_check(adapter) &&
1661 qlcnic_check_multi_tx(adapter))) {
1662 for (ring = 0; ring < adapter->drv_tx_rings;
1663 ring++) {
1664 tx_ring = &adapter->tx_ring[ring];
1665 if (tx_ring->irq)
1666 free_irq(tx_ring->irq, tx_ring);
1667 }
1668 }
1669 }
1670 }
1671
1672 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1673 {
1674 u32 capab = 0;
1675
1676 if (qlcnic_82xx_check(adapter)) {
1677 if (adapter->ahw->extra_capability[0] &
1678 QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1679 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1680 } else {
1681 capab = adapter->ahw->capabilities;
1682 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1683 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1684 }
1685 }
1686
1687 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1688 {
1689 int ring;
1690 struct qlcnic_host_rds_ring *rds_ring;
1691
1692 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1693 return -EIO;
1694
1695 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1696 return 0;
1697
1698 if (qlcnic_set_eswitch_port_config(adapter))
1699 return -EIO;
1700
1701 qlcnic_get_lro_mss_capability(adapter);
1702
1703 if (qlcnic_fw_create_ctx(adapter))
1704 return -EIO;
1705
1706 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1707 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1708 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1709 }
1710
1711 qlcnic_set_multi(netdev);
1712 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1713
1714 adapter->ahw->linkup = 0;
1715
1716 if (adapter->drv_sds_rings > 1)
1717 qlcnic_config_rss(adapter, 1);
1718
1719 qlcnic_config_intr_coalesce(adapter);
1720
1721 if (netdev->features & NETIF_F_LRO)
1722 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1723
1724 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1725 qlcnic_napi_enable(adapter);
1726
1727 qlcnic_linkevent_request(adapter, 1);
1728
1729 adapter->ahw->reset_context = 0;
1730 return 0;
1731 }
1732
1733 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1734 {
1735 int err = 0;
1736
1737 rtnl_lock();
1738 if (netif_running(netdev))
1739 err = __qlcnic_up(adapter, netdev);
1740 rtnl_unlock();
1741
1742 return err;
1743 }
1744
1745 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1746 {
1747 int ring;
1748
1749 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1750 return;
1751
1752 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1753 return;
1754
1755 if (qlcnic_sriov_vf_check(adapter))
1756 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1757 smp_mb();
1758 spin_lock(&adapter->tx_clean_lock);
1759 netif_carrier_off(netdev);
1760 adapter->ahw->linkup = 0;
1761 netif_tx_disable(netdev);
1762
1763 qlcnic_free_mac_list(adapter);
1764
1765 if (adapter->fhash.fnum)
1766 qlcnic_delete_lb_filters(adapter);
1767
1768 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1769
1770 qlcnic_napi_disable(adapter);
1771
1772 qlcnic_fw_destroy_ctx(adapter);
1773 adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1774
1775 qlcnic_reset_rx_buffers_list(adapter);
1776
1777 for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1778 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1779 spin_unlock(&adapter->tx_clean_lock);
1780 }
1781
1782 /* Usage: During suspend and firmware recovery module */
1783
1784 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1785 {
1786 rtnl_lock();
1787 if (netif_running(netdev))
1788 __qlcnic_down(adapter, netdev);
1789 rtnl_unlock();
1790
1791 }
1792
1793 int
1794 qlcnic_attach(struct qlcnic_adapter *adapter)
1795 {
1796 struct net_device *netdev = adapter->netdev;
1797 struct pci_dev *pdev = adapter->pdev;
1798 int err;
1799
1800 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1801 return 0;
1802
1803 err = qlcnic_napi_add(adapter, netdev);
1804 if (err)
1805 return err;
1806
1807 err = qlcnic_alloc_sw_resources(adapter);
1808 if (err) {
1809 dev_err(&pdev->dev, "Error in setting sw resources\n");
1810 goto err_out_napi_del;
1811 }
1812
1813 err = qlcnic_alloc_hw_resources(adapter);
1814 if (err) {
1815 dev_err(&pdev->dev, "Error in setting hw resources\n");
1816 goto err_out_free_sw;
1817 }
1818
1819 err = qlcnic_request_irq(adapter);
1820 if (err) {
1821 dev_err(&pdev->dev, "failed to setup interrupt\n");
1822 goto err_out_free_hw;
1823 }
1824
1825 qlcnic_create_sysfs_entries(adapter);
1826
1827 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1828 return 0;
1829
1830 err_out_free_hw:
1831 qlcnic_free_hw_resources(adapter);
1832 err_out_free_sw:
1833 qlcnic_free_sw_resources(adapter);
1834 err_out_napi_del:
1835 qlcnic_napi_del(adapter);
1836 return err;
1837 }
1838
1839 void qlcnic_detach(struct qlcnic_adapter *adapter)
1840 {
1841 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1842 return;
1843
1844 qlcnic_remove_sysfs_entries(adapter);
1845
1846 qlcnic_free_hw_resources(adapter);
1847 qlcnic_release_rx_buffers(adapter);
1848 qlcnic_free_irq(adapter);
1849 qlcnic_napi_del(adapter);
1850 qlcnic_free_sw_resources(adapter);
1851
1852 adapter->is_up = 0;
1853 }
1854
1855 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
1856 {
1857 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1858 struct qlcnic_host_sds_ring *sds_ring;
1859 int drv_tx_rings = adapter->drv_tx_rings;
1860 int ring;
1861
1862 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1863 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1864 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1865 sds_ring = &adapter->recv_ctx->sds_rings[ring];
1866 qlcnic_disable_int(sds_ring);
1867 }
1868 }
1869
1870 qlcnic_fw_destroy_ctx(adapter);
1871
1872 qlcnic_detach(adapter);
1873
1874 adapter->ahw->diag_test = 0;
1875 adapter->drv_sds_rings = drv_sds_rings;
1876 adapter->drv_tx_rings = drv_tx_rings;
1877
1878 if (qlcnic_attach(adapter))
1879 goto out;
1880
1881 if (netif_running(netdev))
1882 __qlcnic_up(adapter, netdev);
1883 out:
1884 netif_device_attach(netdev);
1885 }
1886
1887 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1888 {
1889 struct qlcnic_hardware_context *ahw = adapter->ahw;
1890 int err = 0;
1891
1892 adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1893 GFP_KERNEL);
1894 if (!adapter->recv_ctx) {
1895 err = -ENOMEM;
1896 goto err_out;
1897 }
1898 /* Initialize interrupt coalesce parameters */
1899 ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1900 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1901 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1902 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1903 if (qlcnic_83xx_check(adapter)) {
1904 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1905 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1906 }
1907 /* clear stats */
1908 memset(&adapter->stats, 0, sizeof(adapter->stats));
1909 err_out:
1910 return err;
1911 }
1912
1913 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1914 {
1915 kfree(adapter->recv_ctx);
1916 adapter->recv_ctx = NULL;
1917
1918 if (adapter->ahw->fw_dump.tmpl_hdr) {
1919 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1920 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1921 }
1922
1923 kfree(adapter->ahw->reset.buff);
1924 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1925 }
1926
1927 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1928 {
1929 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1930 struct qlcnic_host_sds_ring *sds_ring;
1931 struct qlcnic_host_rds_ring *rds_ring;
1932 int ring;
1933 int ret;
1934
1935 netif_device_detach(netdev);
1936
1937 if (netif_running(netdev))
1938 __qlcnic_down(adapter, netdev);
1939
1940 qlcnic_detach(adapter);
1941
1942 adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
1943 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
1944 adapter->ahw->diag_test = test;
1945 adapter->ahw->linkup = 0;
1946
1947 ret = qlcnic_attach(adapter);
1948 if (ret) {
1949 netif_device_attach(netdev);
1950 return ret;
1951 }
1952
1953 ret = qlcnic_fw_create_ctx(adapter);
1954 if (ret) {
1955 qlcnic_detach(adapter);
1956 netif_device_attach(netdev);
1957 return ret;
1958 }
1959
1960 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1961 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1962 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1963 }
1964
1965 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1966 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1967 sds_ring = &adapter->recv_ctx->sds_rings[ring];
1968 qlcnic_enable_int(sds_ring);
1969 }
1970 }
1971
1972 if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1973 adapter->ahw->loopback_state = 0;
1974 qlcnic_linkevent_request(adapter, 1);
1975 }
1976
1977 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1978
1979 return 0;
1980 }
1981
1982 /* Reset context in hardware only */
1983 static int
1984 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1985 {
1986 struct net_device *netdev = adapter->netdev;
1987
1988 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1989 return -EBUSY;
1990
1991 netif_device_detach(netdev);
1992
1993 qlcnic_down(adapter, netdev);
1994
1995 qlcnic_up(adapter, netdev);
1996
1997 netif_device_attach(netdev);
1998
1999 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2000 dev_err(&adapter->pdev->dev, "%s:\n", __func__);
2001 return 0;
2002 }
2003
2004 int
2005 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2006 {
2007 int err = 0;
2008 struct net_device *netdev = adapter->netdev;
2009
2010 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2011 return -EBUSY;
2012
2013 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2014
2015 netif_device_detach(netdev);
2016
2017 if (netif_running(netdev))
2018 __qlcnic_down(adapter, netdev);
2019
2020 qlcnic_detach(adapter);
2021
2022 if (netif_running(netdev)) {
2023 err = qlcnic_attach(adapter);
2024 if (!err) {
2025 __qlcnic_up(adapter, netdev);
2026 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2027 }
2028 }
2029
2030 netif_device_attach(netdev);
2031 }
2032
2033 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2034 return err;
2035 }
2036
2037 void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2038 {
2039 struct qlcnic_hardware_context *ahw = adapter->ahw;
2040 u16 act_pci_fn = ahw->act_pci_func;
2041 u16 count;
2042
2043 ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2044 if (act_pci_fn <= 2)
2045 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2046 act_pci_fn;
2047 else
2048 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2049 act_pci_fn;
2050 ahw->max_uc_count = count;
2051 }
2052
2053 int
2054 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2055 int pci_using_dac)
2056 {
2057 int err;
2058 struct pci_dev *pdev = adapter->pdev;
2059
2060 adapter->rx_csum = 1;
2061 adapter->ahw->mc_enabled = 0;
2062 qlcnic_set_mac_filter_count(adapter);
2063
2064 netdev->netdev_ops = &qlcnic_netdev_ops;
2065 netdev->watchdog_timeo = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2066
2067 qlcnic_change_mtu(netdev, netdev->mtu);
2068
2069 if (qlcnic_sriov_vf_check(adapter))
2070 SET_ETHTOOL_OPS(netdev, &qlcnic_sriov_vf_ethtool_ops);
2071 else
2072 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
2073
2074 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2075 NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2076 NETIF_F_HW_VLAN_CTAG_RX);
2077 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2078 NETIF_F_IPV6_CSUM);
2079
2080 if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2081 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2082 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2083 }
2084
2085 if (pci_using_dac) {
2086 netdev->features |= NETIF_F_HIGHDMA;
2087 netdev->vlan_features |= NETIF_F_HIGHDMA;
2088 }
2089
2090 if (qlcnic_vlan_tx_check(adapter))
2091 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2092
2093 if (qlcnic_sriov_vf_check(adapter))
2094 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2095
2096 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2097 netdev->features |= NETIF_F_LRO;
2098
2099 netdev->hw_features = netdev->features;
2100 netdev->priv_flags |= IFF_UNICAST_FLT;
2101 netdev->irq = adapter->msix_entries[0].vector;
2102
2103 err = qlcnic_set_real_num_queues(adapter, netdev);
2104 if (err)
2105 return err;
2106
2107 err = register_netdev(netdev);
2108 if (err) {
2109 dev_err(&pdev->dev, "failed to register net device\n");
2110 return err;
2111 }
2112
2113 qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2114
2115 return 0;
2116 }
2117
2118 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2119 {
2120 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2121 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2122 *pci_using_dac = 1;
2123 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2124 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2125 *pci_using_dac = 0;
2126 else {
2127 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2128 return -EIO;
2129 }
2130
2131 return 0;
2132 }
2133
2134 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2135 {
2136 int ring;
2137 struct qlcnic_host_tx_ring *tx_ring;
2138
2139 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2140 tx_ring = &adapter->tx_ring[ring];
2141 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
2142 vfree(tx_ring->cmd_buf_arr);
2143 tx_ring->cmd_buf_arr = NULL;
2144 }
2145 }
2146 if (adapter->tx_ring != NULL)
2147 kfree(adapter->tx_ring);
2148 }
2149
2150 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2151 struct net_device *netdev)
2152 {
2153 int ring, vector, index;
2154 struct qlcnic_host_tx_ring *tx_ring;
2155 struct qlcnic_cmd_buffer *cmd_buf_arr;
2156
2157 tx_ring = kcalloc(adapter->drv_tx_rings,
2158 sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2159 if (tx_ring == NULL)
2160 return -ENOMEM;
2161
2162 adapter->tx_ring = tx_ring;
2163
2164 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2165 tx_ring = &adapter->tx_ring[ring];
2166 tx_ring->num_desc = adapter->num_txd;
2167 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2168 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2169 if (cmd_buf_arr == NULL) {
2170 qlcnic_free_tx_rings(adapter);
2171 return -ENOMEM;
2172 }
2173 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
2174 tx_ring->cmd_buf_arr = cmd_buf_arr;
2175 }
2176
2177 if (qlcnic_83xx_check(adapter) ||
2178 (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2179 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2180 tx_ring = &adapter->tx_ring[ring];
2181 tx_ring->adapter = adapter;
2182 if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2183 index = adapter->drv_sds_rings + ring;
2184 vector = adapter->msix_entries[index].vector;
2185 tx_ring->irq = vector;
2186 }
2187 }
2188 }
2189
2190 return 0;
2191 }
2192
2193 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2194 {
2195 struct qlcnic_hardware_context *ahw = adapter->ahw;
2196 u32 fw_cmd = 0;
2197
2198 if (qlcnic_82xx_check(adapter))
2199 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2200 else if (qlcnic_83xx_check(adapter))
2201 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2202
2203 if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2204 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2205 }
2206
2207 static int
2208 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2209 {
2210 struct net_device *netdev = NULL;
2211 struct qlcnic_adapter *adapter = NULL;
2212 struct qlcnic_hardware_context *ahw;
2213 int err, pci_using_dac = -1;
2214 char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2215 struct qlcnic_dcb *dcb;
2216
2217 if (pdev->is_virtfn)
2218 return -ENODEV;
2219
2220 err = pci_enable_device(pdev);
2221 if (err)
2222 return err;
2223
2224 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2225 err = -ENODEV;
2226 goto err_out_disable_pdev;
2227 }
2228
2229 err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2230 if (err)
2231 goto err_out_disable_pdev;
2232
2233 err = pci_request_regions(pdev, qlcnic_driver_name);
2234 if (err)
2235 goto err_out_disable_pdev;
2236
2237 pci_set_master(pdev);
2238 pci_enable_pcie_error_reporting(pdev);
2239
2240 ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2241 if (!ahw) {
2242 err = -ENOMEM;
2243 goto err_out_free_res;
2244 }
2245
2246 switch (ent->device) {
2247 case PCI_DEVICE_ID_QLOGIC_QLE824X:
2248 ahw->hw_ops = &qlcnic_hw_ops;
2249 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2250 break;
2251 case PCI_DEVICE_ID_QLOGIC_QLE834X:
2252 case PCI_DEVICE_ID_QLOGIC_QLE844X:
2253 qlcnic_83xx_register_map(ahw);
2254 break;
2255 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2256 case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2257 qlcnic_sriov_vf_register_map(ahw);
2258 break;
2259 default:
2260 goto err_out_free_hw_res;
2261 }
2262
2263 err = qlcnic_setup_pci_map(pdev, ahw);
2264 if (err)
2265 goto err_out_free_hw_res;
2266
2267 netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2268 QLCNIC_MAX_TX_RINGS);
2269 if (!netdev) {
2270 err = -ENOMEM;
2271 goto err_out_iounmap;
2272 }
2273
2274 SET_NETDEV_DEV(netdev, &pdev->dev);
2275
2276 adapter = netdev_priv(netdev);
2277 adapter->netdev = netdev;
2278 adapter->pdev = pdev;
2279 adapter->ahw = ahw;
2280
2281 adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2282 if (adapter->qlcnic_wq == NULL) {
2283 err = -ENOMEM;
2284 dev_err(&pdev->dev, "Failed to create workqueue\n");
2285 goto err_out_free_netdev;
2286 }
2287
2288 err = qlcnic_alloc_adapter_resources(adapter);
2289 if (err)
2290 goto err_out_free_wq;
2291
2292 adapter->dev_rst_time = jiffies;
2293 adapter->ahw->revision_id = pdev->revision;
2294 if (qlcnic_mac_learn == FDB_MAC_LEARN)
2295 adapter->fdb_mac_learn = true;
2296 else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2297 adapter->drv_mac_learn = true;
2298
2299 rwlock_init(&adapter->ahw->crb_lock);
2300 mutex_init(&adapter->ahw->mem_lock);
2301
2302 spin_lock_init(&adapter->tx_clean_lock);
2303 INIT_LIST_HEAD(&adapter->mac_list);
2304
2305 qlcnic_register_dcb(adapter);
2306
2307 if (qlcnic_82xx_check(adapter)) {
2308 qlcnic_check_vf(adapter, ent);
2309 adapter->portnum = adapter->ahw->pci_func;
2310 err = qlcnic_start_firmware(adapter);
2311 if (err) {
2312 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2313 "\t\tIf reboot doesn't help, try flashing the card\n");
2314 goto err_out_maintenance_mode;
2315 }
2316
2317 /* compute and set default and max tx/sds rings */
2318 if (adapter->ahw->msix_supported) {
2319 if (qlcnic_check_multi_tx_capability(adapter) == 1)
2320 qlcnic_set_tx_ring_count(adapter,
2321 QLCNIC_SINGLE_RING);
2322 else
2323 qlcnic_set_tx_ring_count(adapter,
2324 QLCNIC_DEF_TX_RINGS);
2325 qlcnic_set_sds_ring_count(adapter,
2326 QLCNIC_DEF_SDS_RINGS);
2327 } else {
2328 qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2329 qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2330 }
2331
2332 err = qlcnic_setup_idc_param(adapter);
2333 if (err)
2334 goto err_out_free_hw;
2335
2336 adapter->flags |= QLCNIC_NEED_FLR;
2337
2338 dcb = adapter->dcb;
2339
2340 if (dcb && qlcnic_dcb_attach(dcb))
2341 qlcnic_clear_dcb_ops(dcb);
2342 } else if (qlcnic_83xx_check(adapter)) {
2343 qlcnic_83xx_check_vf(adapter, ent);
2344 adapter->portnum = adapter->ahw->pci_func;
2345 err = qlcnic_83xx_init(adapter, pci_using_dac);
2346 if (err) {
2347 switch (err) {
2348 case -ENOTRECOVERABLE:
2349 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware. Please reboot\n");
2350 dev_err(&pdev->dev, "If reboot doesn't help, please replace the adapter with new one and return the faulty adapter for repair\n");
2351 goto err_out_free_hw;
2352 case -ENOMEM:
2353 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2354 goto err_out_free_hw;
2355 default:
2356 dev_err(&pdev->dev, "Adapter initialization failed. A reboot may be required to recover from this failure\n");
2357 dev_err(&pdev->dev, "If reboot does not help to recover from this failure, try a flash update of the adapter\n");
2358 goto err_out_maintenance_mode;
2359 }
2360 }
2361
2362 if (qlcnic_sriov_vf_check(adapter))
2363 return 0;
2364 } else {
2365 dev_err(&pdev->dev,
2366 "%s: failed. Please Reboot\n", __func__);
2367 goto err_out_free_hw;
2368 }
2369
2370 if (qlcnic_read_mac_addr(adapter))
2371 dev_warn(&pdev->dev, "failed to read mac addr\n");
2372
2373 qlcnic_read_phys_port_id(adapter);
2374
2375 if (adapter->portnum == 0) {
2376 qlcnic_get_board_name(adapter, board_name);
2377
2378 pr_info("%s: %s Board Chip rev 0x%x\n",
2379 module_name(THIS_MODULE),
2380 board_name, adapter->ahw->revision_id);
2381 }
2382
2383 if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2384 !!qlcnic_use_msi)
2385 dev_warn(&pdev->dev,
2386 "Device does not support MSI interrupts\n");
2387
2388 if (qlcnic_82xx_check(adapter)) {
2389 err = qlcnic_setup_intr(adapter);
2390 if (err) {
2391 dev_err(&pdev->dev, "Failed to setup interrupt\n");
2392 goto err_out_disable_msi;
2393 }
2394 }
2395
2396 err = qlcnic_get_act_pci_func(adapter);
2397 if (err)
2398 goto err_out_disable_mbx_intr;
2399
2400 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2401 if (err)
2402 goto err_out_disable_mbx_intr;
2403
2404 if (adapter->portnum == 0)
2405 qlcnic_set_drv_version(adapter);
2406
2407 pci_set_drvdata(pdev, adapter);
2408
2409 if (qlcnic_82xx_check(adapter))
2410 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2411 FW_POLL_DELAY);
2412
2413 switch (adapter->ahw->port_type) {
2414 case QLCNIC_GBE:
2415 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2416 adapter->netdev->name);
2417 break;
2418 case QLCNIC_XGBE:
2419 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2420 adapter->netdev->name);
2421 break;
2422 }
2423
2424 if (adapter->drv_mac_learn)
2425 qlcnic_alloc_lb_filters_mem(adapter);
2426
2427 qlcnic_add_sysfs(adapter);
2428
2429 return 0;
2430
2431 err_out_disable_mbx_intr:
2432 if (qlcnic_83xx_check(adapter))
2433 qlcnic_83xx_free_mbx_intr(adapter);
2434
2435 err_out_disable_msi:
2436 qlcnic_teardown_intr(adapter);
2437 qlcnic_cancel_idc_work(adapter);
2438 qlcnic_clr_all_drv_state(adapter, 0);
2439
2440 err_out_free_hw:
2441 qlcnic_free_adapter_resources(adapter);
2442
2443 err_out_free_wq:
2444 destroy_workqueue(adapter->qlcnic_wq);
2445
2446 err_out_free_netdev:
2447 free_netdev(netdev);
2448
2449 err_out_iounmap:
2450 qlcnic_cleanup_pci_map(ahw);
2451
2452 err_out_free_hw_res:
2453 kfree(ahw);
2454
2455 err_out_free_res:
2456 pci_release_regions(pdev);
2457
2458 err_out_disable_pdev:
2459 pci_disable_device(pdev);
2460 return err;
2461
2462 err_out_maintenance_mode:
2463 set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2464 netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2465 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops);
2466 ahw->port_type = QLCNIC_XGBE;
2467
2468 if (qlcnic_83xx_check(adapter))
2469 adapter->tgt_status_reg = NULL;
2470 else
2471 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2472
2473 err = register_netdev(netdev);
2474
2475 if (err) {
2476 dev_err(&pdev->dev, "Failed to register net device\n");
2477 qlcnic_clr_all_drv_state(adapter, 0);
2478 goto err_out_free_hw;
2479 }
2480
2481 pci_set_drvdata(pdev, adapter);
2482 qlcnic_add_sysfs(adapter);
2483
2484 return 0;
2485 }
2486
2487 static void qlcnic_remove(struct pci_dev *pdev)
2488 {
2489 struct qlcnic_adapter *adapter;
2490 struct net_device *netdev;
2491 struct qlcnic_hardware_context *ahw;
2492
2493 adapter = pci_get_drvdata(pdev);
2494 if (adapter == NULL)
2495 return;
2496
2497 netdev = adapter->netdev;
2498 qlcnic_sriov_pf_disable(adapter);
2499
2500 qlcnic_cancel_idc_work(adapter);
2501 ahw = adapter->ahw;
2502
2503 qlcnic_dcb_free(adapter->dcb);
2504
2505 unregister_netdev(netdev);
2506 qlcnic_sriov_cleanup(adapter);
2507
2508 if (qlcnic_83xx_check(adapter)) {
2509 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2510 cancel_delayed_work_sync(&adapter->idc_aen_work);
2511 qlcnic_83xx_free_mbx_intr(adapter);
2512 qlcnic_83xx_detach_mailbox_work(adapter);
2513 qlcnic_83xx_free_mailbox(ahw->mailbox);
2514 kfree(ahw->fw_info);
2515 }
2516
2517 qlcnic_detach(adapter);
2518
2519 if (adapter->npars != NULL)
2520 kfree(adapter->npars);
2521 if (adapter->eswitch != NULL)
2522 kfree(adapter->eswitch);
2523
2524 if (qlcnic_82xx_check(adapter))
2525 qlcnic_clr_all_drv_state(adapter, 0);
2526
2527 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2528
2529 qlcnic_free_lb_filters_mem(adapter);
2530
2531 qlcnic_teardown_intr(adapter);
2532
2533 qlcnic_remove_sysfs(adapter);
2534
2535 qlcnic_cleanup_pci_map(adapter->ahw);
2536
2537 qlcnic_release_firmware(adapter);
2538
2539 pci_disable_pcie_error_reporting(pdev);
2540 pci_release_regions(pdev);
2541 pci_disable_device(pdev);
2542
2543 if (adapter->qlcnic_wq) {
2544 destroy_workqueue(adapter->qlcnic_wq);
2545 adapter->qlcnic_wq = NULL;
2546 }
2547
2548 qlcnic_free_adapter_resources(adapter);
2549 kfree(ahw);
2550 free_netdev(netdev);
2551 }
2552
2553 static void qlcnic_shutdown(struct pci_dev *pdev)
2554 {
2555 if (__qlcnic_shutdown(pdev))
2556 return;
2557
2558 pci_disable_device(pdev);
2559 }
2560
2561 #ifdef CONFIG_PM
2562 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2563 {
2564 int retval;
2565
2566 retval = __qlcnic_shutdown(pdev);
2567 if (retval)
2568 return retval;
2569
2570 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2571 return 0;
2572 }
2573
2574 static int qlcnic_resume(struct pci_dev *pdev)
2575 {
2576 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2577 int err;
2578
2579 err = pci_enable_device(pdev);
2580 if (err)
2581 return err;
2582
2583 pci_set_power_state(pdev, PCI_D0);
2584 pci_set_master(pdev);
2585 pci_restore_state(pdev);
2586
2587 return __qlcnic_resume(adapter);
2588 }
2589 #endif
2590
2591 static int qlcnic_open(struct net_device *netdev)
2592 {
2593 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2594 int err;
2595
2596 if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2597 netdev_err(netdev, "%s: Device is in non-operational state\n",
2598 __func__);
2599
2600 return -EIO;
2601 }
2602
2603 netif_carrier_off(netdev);
2604
2605 err = qlcnic_attach(adapter);
2606 if (err)
2607 return err;
2608
2609 err = __qlcnic_up(adapter, netdev);
2610 if (err)
2611 goto err_out;
2612
2613 netif_tx_start_all_queues(netdev);
2614
2615 return 0;
2616
2617 err_out:
2618 qlcnic_detach(adapter);
2619 return err;
2620 }
2621
2622 /*
2623 * qlcnic_close - Disables a network interface entry point
2624 */
2625 static int qlcnic_close(struct net_device *netdev)
2626 {
2627 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2628
2629 __qlcnic_down(adapter, netdev);
2630
2631 return 0;
2632 }
2633
2634 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2635 {
2636 void *head;
2637 int i;
2638 struct net_device *netdev = adapter->netdev;
2639 u32 filter_size = 0;
2640 u16 act_pci_func = 0;
2641
2642 if (adapter->fhash.fmax && adapter->fhash.fhead)
2643 return;
2644
2645 act_pci_func = adapter->ahw->act_pci_func;
2646 spin_lock_init(&adapter->mac_learn_lock);
2647 spin_lock_init(&adapter->rx_mac_learn_lock);
2648
2649 if (qlcnic_82xx_check(adapter)) {
2650 filter_size = QLCNIC_LB_MAX_FILTERS;
2651 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2652 } else {
2653 filter_size = QLC_83XX_LB_MAX_FILTERS;
2654 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2655 }
2656
2657 head = kcalloc(adapter->fhash.fbucket_size,
2658 sizeof(struct hlist_head), GFP_ATOMIC);
2659
2660 if (!head)
2661 return;
2662
2663 adapter->fhash.fmax = (filter_size / act_pci_func);
2664 adapter->fhash.fhead = head;
2665
2666 netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2667 act_pci_func, adapter->fhash.fmax);
2668
2669 for (i = 0; i < adapter->fhash.fbucket_size; i++)
2670 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2671
2672 adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2673
2674 head = kcalloc(adapter->rx_fhash.fbucket_size,
2675 sizeof(struct hlist_head), GFP_ATOMIC);
2676
2677 if (!head)
2678 return;
2679
2680 adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2681 adapter->rx_fhash.fhead = head;
2682
2683 for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2684 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2685 }
2686
2687 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2688 {
2689 if (adapter->fhash.fmax && adapter->fhash.fhead)
2690 kfree(adapter->fhash.fhead);
2691
2692 adapter->fhash.fhead = NULL;
2693 adapter->fhash.fmax = 0;
2694
2695 if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2696 kfree(adapter->rx_fhash.fhead);
2697
2698 adapter->rx_fhash.fmax = 0;
2699 adapter->rx_fhash.fhead = NULL;
2700 }
2701
2702 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2703 {
2704 struct net_device *netdev = adapter->netdev;
2705 u32 temp_state, temp_val, temp = 0;
2706 int rv = 0;
2707
2708 if (qlcnic_83xx_check(adapter))
2709 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2710
2711 if (qlcnic_82xx_check(adapter))
2712 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2713
2714 temp_state = qlcnic_get_temp_state(temp);
2715 temp_val = qlcnic_get_temp_val(temp);
2716
2717 if (temp_state == QLCNIC_TEMP_PANIC) {
2718 dev_err(&netdev->dev,
2719 "Device temperature %d degrees C exceeds"
2720 " maximum allowed. Hardware has been shut down.\n",
2721 temp_val);
2722 rv = 1;
2723 } else if (temp_state == QLCNIC_TEMP_WARN) {
2724 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2725 dev_err(&netdev->dev,
2726 "Device temperature %d degrees C "
2727 "exceeds operating range."
2728 " Immediate action needed.\n",
2729 temp_val);
2730 }
2731 } else {
2732 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2733 dev_info(&netdev->dev,
2734 "Device temperature is now %d degrees C"
2735 " in normal range.\n", temp_val);
2736 }
2737 }
2738 adapter->ahw->temp = temp_state;
2739 return rv;
2740 }
2741
2742 static void qlcnic_tx_timeout(struct net_device *netdev)
2743 {
2744 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2745 struct qlcnic_host_tx_ring *tx_ring;
2746 int ring;
2747
2748 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2749 return;
2750
2751 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) {
2752 netdev_info(netdev, "Tx timeout, reset the adapter.\n");
2753 if (qlcnic_82xx_check(adapter))
2754 adapter->need_fw_reset = 1;
2755 else if (qlcnic_83xx_check(adapter))
2756 qlcnic_83xx_idc_request_reset(adapter,
2757 QLCNIC_FORCE_FW_DUMP_KEY);
2758 } else {
2759 netdev_info(netdev, "Tx timeout, reset adapter context.\n");
2760 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2761 tx_ring = &adapter->tx_ring[ring];
2762 netdev_info(netdev, "Tx ring=%d\n", ring);
2763 netdev_info(netdev,
2764 "crb_intr_mask=%d, producer=%d, sw_consumer=%d, hw_consumer=%d\n",
2765 readl(tx_ring->crb_intr_mask),
2766 readl(tx_ring->crb_cmd_producer),
2767 tx_ring->sw_consumer,
2768 le32_to_cpu(*(tx_ring->hw_consumer)));
2769 netdev_info(netdev,
2770 "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
2771 tx_ring->tx_stats.xmit_finished,
2772 tx_ring->tx_stats.xmit_called,
2773 tx_ring->tx_stats.xmit_on,
2774 tx_ring->tx_stats.xmit_off);
2775 }
2776 adapter->ahw->reset_context = 1;
2777 }
2778 }
2779
2780 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2781 {
2782 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2783 struct net_device_stats *stats = &netdev->stats;
2784
2785 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2786 stats->tx_packets = adapter->stats.xmitfinished;
2787 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2788 stats->tx_bytes = adapter->stats.txbytes;
2789 stats->rx_dropped = adapter->stats.rxdropped;
2790 stats->tx_dropped = adapter->stats.txdropped;
2791
2792 return stats;
2793 }
2794
2795 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2796 {
2797 u32 status;
2798
2799 status = readl(adapter->isr_int_vec);
2800
2801 if (!(status & adapter->ahw->int_vec_bit))
2802 return IRQ_NONE;
2803
2804 /* check interrupt state machine, to be sure */
2805 status = readl(adapter->crb_int_state_reg);
2806 if (!ISR_LEGACY_INT_TRIGGERED(status))
2807 return IRQ_NONE;
2808
2809 writel(0xffffffff, adapter->tgt_status_reg);
2810 /* read twice to ensure write is flushed */
2811 readl(adapter->isr_int_vec);
2812 readl(adapter->isr_int_vec);
2813
2814 return IRQ_HANDLED;
2815 }
2816
2817 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2818 {
2819 struct qlcnic_host_sds_ring *sds_ring = data;
2820 struct qlcnic_adapter *adapter = sds_ring->adapter;
2821
2822 if (adapter->flags & QLCNIC_MSIX_ENABLED)
2823 goto done;
2824 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2825 writel(0xffffffff, adapter->tgt_status_reg);
2826 goto done;
2827 }
2828
2829 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2830 return IRQ_NONE;
2831
2832 done:
2833 adapter->ahw->diag_cnt++;
2834 qlcnic_enable_int(sds_ring);
2835 return IRQ_HANDLED;
2836 }
2837
2838 static irqreturn_t qlcnic_intr(int irq, void *data)
2839 {
2840 struct qlcnic_host_sds_ring *sds_ring = data;
2841 struct qlcnic_adapter *adapter = sds_ring->adapter;
2842
2843 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2844 return IRQ_NONE;
2845
2846 napi_schedule(&sds_ring->napi);
2847
2848 return IRQ_HANDLED;
2849 }
2850
2851 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2852 {
2853 struct qlcnic_host_sds_ring *sds_ring = data;
2854 struct qlcnic_adapter *adapter = sds_ring->adapter;
2855
2856 /* clear interrupt */
2857 writel(0xffffffff, adapter->tgt_status_reg);
2858
2859 napi_schedule(&sds_ring->napi);
2860 return IRQ_HANDLED;
2861 }
2862
2863 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2864 {
2865 struct qlcnic_host_sds_ring *sds_ring = data;
2866
2867 napi_schedule(&sds_ring->napi);
2868 return IRQ_HANDLED;
2869 }
2870
2871 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2872 {
2873 struct qlcnic_host_tx_ring *tx_ring = data;
2874
2875 napi_schedule(&tx_ring->napi);
2876 return IRQ_HANDLED;
2877 }
2878
2879 #ifdef CONFIG_NET_POLL_CONTROLLER
2880 static void qlcnic_poll_controller(struct net_device *netdev)
2881 {
2882 int ring;
2883 struct qlcnic_host_sds_ring *sds_ring;
2884 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2885 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2886
2887 disable_irq(adapter->irq);
2888 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2889 sds_ring = &recv_ctx->sds_rings[ring];
2890 qlcnic_intr(adapter->irq, sds_ring);
2891 }
2892 enable_irq(adapter->irq);
2893 }
2894 #endif
2895
2896 static void
2897 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2898 {
2899 u32 val;
2900
2901 val = adapter->portnum & 0xf;
2902 val |= encoding << 7;
2903 val |= (jiffies - adapter->dev_rst_time) << 8;
2904
2905 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2906 adapter->dev_rst_time = jiffies;
2907 }
2908
2909 static int
2910 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2911 {
2912 u32 val;
2913
2914 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2915 state != QLCNIC_DEV_NEED_QUISCENT);
2916
2917 if (qlcnic_api_lock(adapter))
2918 return -EIO;
2919
2920 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2921
2922 if (state == QLCNIC_DEV_NEED_RESET)
2923 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2924 else if (state == QLCNIC_DEV_NEED_QUISCENT)
2925 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2926
2927 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2928
2929 qlcnic_api_unlock(adapter);
2930
2931 return 0;
2932 }
2933
2934 static int
2935 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2936 {
2937 u32 val;
2938
2939 if (qlcnic_api_lock(adapter))
2940 return -EBUSY;
2941
2942 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2943 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2944 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2945
2946 qlcnic_api_unlock(adapter);
2947
2948 return 0;
2949 }
2950
2951 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2952 {
2953 u32 val;
2954
2955 if (qlcnic_api_lock(adapter))
2956 goto err;
2957
2958 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2959 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2960 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2961
2962 if (failed) {
2963 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2964 QLCNIC_DEV_FAILED);
2965 dev_info(&adapter->pdev->dev,
2966 "Device state set to Failed. Please Reboot\n");
2967 } else if (!(val & 0x11111111))
2968 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2969 QLCNIC_DEV_COLD);
2970
2971 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2972 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2973 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2974
2975 qlcnic_api_unlock(adapter);
2976 err:
2977 adapter->fw_fail_cnt = 0;
2978 adapter->flags &= ~QLCNIC_FW_HANG;
2979 clear_bit(__QLCNIC_START_FW, &adapter->state);
2980 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2981 }
2982
2983 /* Grab api lock, before checking state */
2984 static int
2985 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2986 {
2987 int act, state, active_mask;
2988 struct qlcnic_hardware_context *ahw = adapter->ahw;
2989
2990 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2991 act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2992
2993 if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2994 active_mask = (~(1 << (ahw->pci_func * 4)));
2995 act = act & active_mask;
2996 }
2997
2998 if (((state & 0x11111111) == (act & 0x11111111)) ||
2999 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3000 return 0;
3001 else
3002 return 1;
3003 }
3004
3005 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3006 {
3007 u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3008
3009 if (val != QLCNIC_DRV_IDC_VER) {
3010 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3011 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3012 }
3013
3014 return 0;
3015 }
3016
3017 static int
3018 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3019 {
3020 u32 val, prev_state;
3021 u8 dev_init_timeo = adapter->dev_init_timeo;
3022 u8 portnum = adapter->portnum;
3023 u8 ret;
3024
3025 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3026 return 1;
3027
3028 if (qlcnic_api_lock(adapter))
3029 return -1;
3030
3031 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3032 if (!(val & (1 << (portnum * 4)))) {
3033 QLC_DEV_SET_REF_CNT(val, portnum);
3034 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3035 }
3036
3037 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3038 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3039
3040 switch (prev_state) {
3041 case QLCNIC_DEV_COLD:
3042 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3043 QLCNIC_DEV_INITIALIZING);
3044 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3045 QLCNIC_DRV_IDC_VER);
3046 qlcnic_idc_debug_info(adapter, 0);
3047 qlcnic_api_unlock(adapter);
3048 return 1;
3049
3050 case QLCNIC_DEV_READY:
3051 ret = qlcnic_check_idc_ver(adapter);
3052 qlcnic_api_unlock(adapter);
3053 return ret;
3054
3055 case QLCNIC_DEV_NEED_RESET:
3056 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3057 QLC_DEV_SET_RST_RDY(val, portnum);
3058 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3059 break;
3060
3061 case QLCNIC_DEV_NEED_QUISCENT:
3062 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3063 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3064 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3065 break;
3066
3067 case QLCNIC_DEV_FAILED:
3068 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3069 qlcnic_api_unlock(adapter);
3070 return -1;
3071
3072 case QLCNIC_DEV_INITIALIZING:
3073 case QLCNIC_DEV_QUISCENT:
3074 break;
3075 }
3076
3077 qlcnic_api_unlock(adapter);
3078
3079 do {
3080 msleep(1000);
3081 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3082
3083 if (prev_state == QLCNIC_DEV_QUISCENT)
3084 continue;
3085 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3086
3087 if (!dev_init_timeo) {
3088 dev_err(&adapter->pdev->dev,
3089 "Waiting for device to initialize timeout\n");
3090 return -1;
3091 }
3092
3093 if (qlcnic_api_lock(adapter))
3094 return -1;
3095
3096 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3097 QLC_DEV_CLR_RST_QSCNT(val, portnum);
3098 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3099
3100 ret = qlcnic_check_idc_ver(adapter);
3101 qlcnic_api_unlock(adapter);
3102
3103 return ret;
3104 }
3105
3106 static void
3107 qlcnic_fwinit_work(struct work_struct *work)
3108 {
3109 struct qlcnic_adapter *adapter = container_of(work,
3110 struct qlcnic_adapter, fw_work.work);
3111 u32 dev_state = 0xf;
3112 u32 val;
3113
3114 if (qlcnic_api_lock(adapter))
3115 goto err_ret;
3116
3117 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3118 if (dev_state == QLCNIC_DEV_QUISCENT ||
3119 dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3120 qlcnic_api_unlock(adapter);
3121 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3122 FW_POLL_DELAY * 2);
3123 return;
3124 }
3125
3126 if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3127 qlcnic_api_unlock(adapter);
3128 goto wait_npar;
3129 }
3130
3131 if (dev_state == QLCNIC_DEV_INITIALIZING ||
3132 dev_state == QLCNIC_DEV_READY) {
3133 dev_info(&adapter->pdev->dev, "Detected state change from "
3134 "DEV_NEED_RESET, skipping ack check\n");
3135 goto skip_ack_check;
3136 }
3137
3138 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3139 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3140 adapter->reset_ack_timeo);
3141 goto skip_ack_check;
3142 }
3143
3144 if (!qlcnic_check_drv_state(adapter)) {
3145 skip_ack_check:
3146 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3147
3148 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3149 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3150 QLCNIC_DEV_INITIALIZING);
3151 set_bit(__QLCNIC_START_FW, &adapter->state);
3152 QLCDB(adapter, DRV, "Restarting fw\n");
3153 qlcnic_idc_debug_info(adapter, 0);
3154 val = QLC_SHARED_REG_RD32(adapter,
3155 QLCNIC_CRB_DRV_STATE);
3156 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3157 QLC_SHARED_REG_WR32(adapter,
3158 QLCNIC_CRB_DRV_STATE, val);
3159 }
3160
3161 qlcnic_api_unlock(adapter);
3162
3163 rtnl_lock();
3164 if (qlcnic_check_fw_dump_state(adapter) &&
3165 (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3166 QLCDB(adapter, DRV, "Take FW dump\n");
3167 qlcnic_dump_fw(adapter);
3168 adapter->flags |= QLCNIC_FW_HANG;
3169 }
3170 rtnl_unlock();
3171
3172 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3173 if (!adapter->nic_ops->start_firmware(adapter)) {
3174 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3175 adapter->fw_wait_cnt = 0;
3176 return;
3177 }
3178 goto err_ret;
3179 }
3180
3181 qlcnic_api_unlock(adapter);
3182
3183 wait_npar:
3184 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3185 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3186
3187 switch (dev_state) {
3188 case QLCNIC_DEV_READY:
3189 if (!qlcnic_start_firmware(adapter)) {
3190 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3191 adapter->fw_wait_cnt = 0;
3192 return;
3193 }
3194 case QLCNIC_DEV_FAILED:
3195 break;
3196 default:
3197 qlcnic_schedule_work(adapter,
3198 qlcnic_fwinit_work, FW_POLL_DELAY);
3199 return;
3200 }
3201
3202 err_ret:
3203 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3204 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3205 netif_device_attach(adapter->netdev);
3206 qlcnic_clr_all_drv_state(adapter, 0);
3207 }
3208
3209 static void
3210 qlcnic_detach_work(struct work_struct *work)
3211 {
3212 struct qlcnic_adapter *adapter = container_of(work,
3213 struct qlcnic_adapter, fw_work.work);
3214 struct net_device *netdev = adapter->netdev;
3215 u32 status;
3216
3217 netif_device_detach(netdev);
3218
3219 /* Dont grab rtnl lock during Quiscent mode */
3220 if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3221 if (netif_running(netdev))
3222 __qlcnic_down(adapter, netdev);
3223 } else
3224 qlcnic_down(adapter, netdev);
3225
3226 status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3227
3228 if (status & QLCNIC_RCODE_FATAL_ERROR) {
3229 dev_err(&adapter->pdev->dev,
3230 "Detaching the device: peg halt status1=0x%x\n",
3231 status);
3232
3233 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3234 dev_err(&adapter->pdev->dev,
3235 "On board active cooling fan failed. "
3236 "Device has been halted.\n");
3237 dev_err(&adapter->pdev->dev,
3238 "Replace the adapter.\n");
3239 }
3240
3241 goto err_ret;
3242 }
3243
3244 if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3245 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3246 adapter->ahw->temp);
3247 goto err_ret;
3248 }
3249
3250 /* Dont ack if this instance is the reset owner */
3251 if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3252 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3253 dev_err(&adapter->pdev->dev,
3254 "Failed to set driver state,"
3255 "detaching the device.\n");
3256 goto err_ret;
3257 }
3258 }
3259
3260 adapter->fw_wait_cnt = 0;
3261
3262 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3263
3264 return;
3265
3266 err_ret:
3267 netif_device_attach(netdev);
3268 qlcnic_clr_all_drv_state(adapter, 1);
3269 }
3270
3271 /*Transit NPAR state to NON Operational */
3272 static void
3273 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3274 {
3275 u32 state;
3276
3277 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3278 if (state == QLCNIC_DEV_NPAR_NON_OPER)
3279 return;
3280
3281 if (qlcnic_api_lock(adapter))
3282 return;
3283 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3284 QLCNIC_DEV_NPAR_NON_OPER);
3285 qlcnic_api_unlock(adapter);
3286 }
3287
3288 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
3289 {
3290 u32 state, xg_val = 0, gb_val = 0;
3291
3292 qlcnic_xg_set_xg0_mask(xg_val);
3293 qlcnic_xg_set_xg1_mask(xg_val);
3294 QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3295 qlcnic_gb_set_gb0_mask(gb_val);
3296 qlcnic_gb_set_gb1_mask(gb_val);
3297 qlcnic_gb_set_gb2_mask(gb_val);
3298 qlcnic_gb_set_gb3_mask(gb_val);
3299 QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3300 dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3301 " on all ports\n");
3302 adapter->need_fw_reset = 1;
3303
3304 if (qlcnic_api_lock(adapter))
3305 return;
3306
3307 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3308
3309 if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3310 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3311 __func__);
3312 qlcnic_api_unlock(adapter);
3313
3314 return;
3315 }
3316
3317 if (state == QLCNIC_DEV_READY) {
3318 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3319 QLCNIC_DEV_NEED_RESET);
3320 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3321 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3322 qlcnic_idc_debug_info(adapter, 0);
3323 }
3324
3325 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3326 QLCNIC_DEV_NPAR_NON_OPER);
3327 qlcnic_api_unlock(adapter);
3328 }
3329
3330 /* Transit to NPAR READY state from NPAR NOT READY state */
3331 static void
3332 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3333 {
3334 if (qlcnic_api_lock(adapter))
3335 return;
3336
3337 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3338 QLCNIC_DEV_NPAR_OPER);
3339 QLCDB(adapter, DRV, "NPAR operational state set\n");
3340
3341 qlcnic_api_unlock(adapter);
3342 }
3343
3344 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3345 work_func_t func, int delay)
3346 {
3347 if (test_bit(__QLCNIC_AER, &adapter->state))
3348 return;
3349
3350 INIT_DELAYED_WORK(&adapter->fw_work, func);
3351 queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3352 round_jiffies_relative(delay));
3353 }
3354
3355 static void
3356 qlcnic_attach_work(struct work_struct *work)
3357 {
3358 struct qlcnic_adapter *adapter = container_of(work,
3359 struct qlcnic_adapter, fw_work.work);
3360 struct net_device *netdev = adapter->netdev;
3361 u32 npar_state;
3362
3363 if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3364 npar_state = QLC_SHARED_REG_RD32(adapter,
3365 QLCNIC_CRB_DEV_NPAR_STATE);
3366 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3367 qlcnic_clr_all_drv_state(adapter, 0);
3368 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3369 qlcnic_schedule_work(adapter, qlcnic_attach_work,
3370 FW_POLL_DELAY);
3371 else
3372 goto attach;
3373 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3374 return;
3375 }
3376 attach:
3377 qlcnic_dcb_get_info(adapter->dcb);
3378
3379 if (netif_running(netdev)) {
3380 if (qlcnic_up(adapter, netdev))
3381 goto done;
3382
3383 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3384 }
3385
3386 done:
3387 netif_device_attach(netdev);
3388 adapter->fw_fail_cnt = 0;
3389 adapter->flags &= ~QLCNIC_FW_HANG;
3390 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3391 if (adapter->portnum == 0)
3392 qlcnic_set_drv_version(adapter);
3393
3394 if (!qlcnic_clr_drv_state(adapter))
3395 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3396 FW_POLL_DELAY);
3397 }
3398
3399 static int
3400 qlcnic_check_health(struct qlcnic_adapter *adapter)
3401 {
3402 struct qlcnic_hardware_context *ahw = adapter->ahw;
3403 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3404 u32 state = 0, heartbeat;
3405 u32 peg_status;
3406 int err = 0;
3407
3408 if (qlcnic_check_temp(adapter))
3409 goto detach;
3410
3411 if (adapter->need_fw_reset)
3412 qlcnic_dev_request_reset(adapter, 0);
3413
3414 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3415 if (state == QLCNIC_DEV_NEED_RESET) {
3416 qlcnic_set_npar_non_operational(adapter);
3417 adapter->need_fw_reset = 1;
3418 } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3419 goto detach;
3420
3421 heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3422 if (heartbeat != adapter->heartbeat) {
3423 adapter->heartbeat = heartbeat;
3424 adapter->fw_fail_cnt = 0;
3425 if (adapter->need_fw_reset)
3426 goto detach;
3427
3428 if (ahw->reset_context && qlcnic_auto_fw_reset)
3429 qlcnic_reset_hw_context(adapter);
3430
3431 return 0;
3432 }
3433
3434 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3435 return 0;
3436
3437 adapter->flags |= QLCNIC_FW_HANG;
3438
3439 qlcnic_dev_request_reset(adapter, 0);
3440
3441 if (qlcnic_auto_fw_reset)
3442 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3443
3444 dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3445 peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3446 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3447 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3448 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3449 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3450 "PEG_NET_4_PC: 0x%x\n",
3451 peg_status,
3452 QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3453 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3454 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3455 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3456 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3457 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3458 if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3459 dev_err(&adapter->pdev->dev,
3460 "Firmware aborted with error code 0x00006700. "
3461 "Device is being reset.\n");
3462 detach:
3463 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3464 QLCNIC_DEV_NEED_RESET;
3465
3466 if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3467 &adapter->state)) {
3468
3469 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3470 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3471 } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3472 adapter->flags & QLCNIC_FW_RESET_OWNER) {
3473 qlcnic_dump_fw(adapter);
3474 }
3475
3476 return 1;
3477 }
3478
3479 void qlcnic_fw_poll_work(struct work_struct *work)
3480 {
3481 struct qlcnic_adapter *adapter = container_of(work,
3482 struct qlcnic_adapter, fw_work.work);
3483
3484 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3485 goto reschedule;
3486
3487
3488 if (qlcnic_check_health(adapter))
3489 return;
3490
3491 if (adapter->fhash.fnum)
3492 qlcnic_prune_lb_filters(adapter);
3493
3494 reschedule:
3495 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3496 }
3497
3498 static int qlcnic_is_first_func(struct pci_dev *pdev)
3499 {
3500 struct pci_dev *oth_pdev;
3501 int val = pdev->devfn;
3502
3503 while (val-- > 0) {
3504 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3505 (pdev->bus), pdev->bus->number,
3506 PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3507 if (!oth_pdev)
3508 continue;
3509
3510 if (oth_pdev->current_state != PCI_D3cold) {
3511 pci_dev_put(oth_pdev);
3512 return 0;
3513 }
3514 pci_dev_put(oth_pdev);
3515 }
3516 return 1;
3517 }
3518
3519 static int qlcnic_attach_func(struct pci_dev *pdev)
3520 {
3521 int err, first_func;
3522 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3523 struct net_device *netdev = adapter->netdev;
3524
3525 pdev->error_state = pci_channel_io_normal;
3526
3527 err = pci_enable_device(pdev);
3528 if (err)
3529 return err;
3530
3531 pci_set_master(pdev);
3532 pci_restore_state(pdev);
3533
3534 first_func = qlcnic_is_first_func(pdev);
3535
3536 if (qlcnic_api_lock(adapter))
3537 return -EINVAL;
3538
3539 if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3540 adapter->need_fw_reset = 1;
3541 set_bit(__QLCNIC_START_FW, &adapter->state);
3542 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3543 QLCNIC_DEV_INITIALIZING);
3544 QLCDB(adapter, DRV, "Restarting fw\n");
3545 }
3546 qlcnic_api_unlock(adapter);
3547
3548 err = qlcnic_start_firmware(adapter);
3549 if (err)
3550 return err;
3551
3552 qlcnic_clr_drv_state(adapter);
3553 kfree(adapter->msix_entries);
3554 adapter->msix_entries = NULL;
3555 err = qlcnic_setup_intr(adapter);
3556
3557 if (err) {
3558 kfree(adapter->msix_entries);
3559 netdev_err(netdev, "failed to setup interrupt\n");
3560 return err;
3561 }
3562
3563 if (netif_running(netdev)) {
3564 err = qlcnic_attach(adapter);
3565 if (err) {
3566 qlcnic_clr_all_drv_state(adapter, 1);
3567 clear_bit(__QLCNIC_AER, &adapter->state);
3568 netif_device_attach(netdev);
3569 return err;
3570 }
3571
3572 err = qlcnic_up(adapter, netdev);
3573 if (err)
3574 goto done;
3575
3576 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3577 }
3578 done:
3579 netif_device_attach(netdev);
3580 return err;
3581 }
3582
3583 pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3584 pci_channel_state_t state)
3585 {
3586 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3587 struct net_device *netdev = adapter->netdev;
3588
3589 if (state == pci_channel_io_perm_failure)
3590 return PCI_ERS_RESULT_DISCONNECT;
3591
3592 if (state == pci_channel_io_normal)
3593 return PCI_ERS_RESULT_RECOVERED;
3594
3595 set_bit(__QLCNIC_AER, &adapter->state);
3596 netif_device_detach(netdev);
3597
3598 cancel_delayed_work_sync(&adapter->fw_work);
3599
3600 if (netif_running(netdev))
3601 qlcnic_down(adapter, netdev);
3602
3603 qlcnic_detach(adapter);
3604 qlcnic_teardown_intr(adapter);
3605
3606 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3607
3608 pci_save_state(pdev);
3609 pci_disable_device(pdev);
3610
3611 return PCI_ERS_RESULT_NEED_RESET;
3612 }
3613
3614 pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3615 {
3616 return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3617 PCI_ERS_RESULT_RECOVERED;
3618 }
3619
3620 void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3621 {
3622 u32 state;
3623 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3624
3625 pci_cleanup_aer_uncorrect_error_status(pdev);
3626 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3627 if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3628 &adapter->state))
3629 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3630 FW_POLL_DELAY);
3631 }
3632
3633 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3634 pci_channel_state_t state)
3635 {
3636 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3637 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3638
3639 if (hw_ops->io_error_detected) {
3640 return hw_ops->io_error_detected(pdev, state);
3641 } else {
3642 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3643 return PCI_ERS_RESULT_DISCONNECT;
3644 }
3645 }
3646
3647 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3648 {
3649 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3650 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3651
3652 if (hw_ops->io_slot_reset) {
3653 return hw_ops->io_slot_reset(pdev);
3654 } else {
3655 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3656 return PCI_ERS_RESULT_DISCONNECT;
3657 }
3658 }
3659
3660 static void qlcnic_io_resume(struct pci_dev *pdev)
3661 {
3662 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3663 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3664
3665 if (hw_ops->io_resume)
3666 hw_ops->io_resume(pdev);
3667 else
3668 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3669 }
3670
3671
3672 static int
3673 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3674 {
3675 int err;
3676
3677 err = qlcnic_can_start_firmware(adapter);
3678 if (err)
3679 return err;
3680
3681 err = qlcnic_check_npar_opertional(adapter);
3682 if (err)
3683 return err;
3684
3685 err = qlcnic_initialize_nic(adapter);
3686 if (err)
3687 return err;
3688
3689 qlcnic_check_options(adapter);
3690
3691 err = qlcnic_set_eswitch_port_config(adapter);
3692 if (err)
3693 return err;
3694
3695 adapter->need_fw_reset = 0;
3696
3697 return err;
3698 }
3699
3700 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
3701 int queue_type)
3702 {
3703 struct net_device *netdev = adapter->netdev;
3704 u8 max_hw_rings = 0;
3705 char buf[8];
3706 int cur_rings;
3707
3708 if (queue_type == QLCNIC_RX_QUEUE) {
3709 max_hw_rings = adapter->max_sds_rings;
3710 cur_rings = adapter->drv_sds_rings;
3711 strcpy(buf, "SDS");
3712 } else if (queue_type == QLCNIC_TX_QUEUE) {
3713 max_hw_rings = adapter->max_tx_rings;
3714 cur_rings = adapter->drv_tx_rings;
3715 strcpy(buf, "Tx");
3716 }
3717
3718 if (!qlcnic_use_msi_x && !qlcnic_use_msi) {
3719 netdev_err(netdev, "No RSS/TSS support in INT-x mode\n");
3720 return -EINVAL;
3721 }
3722
3723 if (adapter->flags & QLCNIC_MSI_ENABLED) {
3724 netdev_err(netdev, "No RSS/TSS support in MSI mode\n");
3725 return -EINVAL;
3726 }
3727
3728 if (ring_cnt < 2) {
3729 netdev_err(netdev,
3730 "%s rings value should not be lower than 2\n", buf);
3731 return -EINVAL;
3732 }
3733
3734 if (!is_power_of_2(ring_cnt)) {
3735 netdev_err(netdev, "%s rings value should be a power of 2\n",
3736 buf);
3737 return -EINVAL;
3738 }
3739
3740 if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
3741 !qlcnic_check_multi_tx(adapter)) {
3742 netdev_err(netdev, "No Multi Tx queue support\n");
3743 return -EINVAL;
3744 }
3745
3746 if (ring_cnt > num_online_cpus()) {
3747 netdev_err(netdev,
3748 "%s value[%u] should not be higher than, number of online CPUs\n",
3749 buf, num_online_cpus());
3750 return -EINVAL;
3751 }
3752
3753 return 0;
3754 }
3755
3756 int qlcnic_setup_rings(struct qlcnic_adapter *adapter, u8 rx_cnt, u8 tx_cnt)
3757 {
3758 struct net_device *netdev = adapter->netdev;
3759 int err;
3760
3761 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3762 return -EBUSY;
3763
3764 netif_device_detach(netdev);
3765 if (netif_running(netdev))
3766 __qlcnic_down(adapter, netdev);
3767
3768 qlcnic_detach(adapter);
3769
3770 if (qlcnic_83xx_check(adapter)) {
3771 qlcnic_83xx_free_mbx_intr(adapter);
3772 qlcnic_83xx_enable_mbx_poll(adapter);
3773 }
3774
3775 qlcnic_teardown_intr(adapter);
3776
3777 /* compute and set default and max tx/sds rings */
3778 qlcnic_set_tx_ring_count(adapter, tx_cnt);
3779 qlcnic_set_sds_ring_count(adapter, rx_cnt);
3780
3781 netif_set_real_num_tx_queues(netdev, adapter->drv_tx_rings);
3782
3783 err = qlcnic_setup_intr(adapter);
3784 if (err) {
3785 kfree(adapter->msix_entries);
3786 netdev_err(netdev, "failed to setup interrupt\n");
3787 return err;
3788 }
3789
3790 if (qlcnic_83xx_check(adapter)) {
3791 /* register for NIC IDC AEN Events */
3792 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3793 err = qlcnic_83xx_setup_mbx_intr(adapter);
3794 qlcnic_83xx_disable_mbx_poll(adapter);
3795 if (err) {
3796 dev_err(&adapter->pdev->dev,
3797 "failed to setup mbx interrupt\n");
3798 goto done;
3799 }
3800 }
3801
3802 if (netif_running(netdev)) {
3803 err = qlcnic_attach(adapter);
3804 if (err)
3805 goto done;
3806 err = __qlcnic_up(adapter, netdev);
3807 if (err)
3808 goto done;
3809 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3810 }
3811 done:
3812 netif_device_attach(netdev);
3813 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3814 return err;
3815 }
3816
3817 #ifdef CONFIG_INET
3818
3819 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3820
3821 static void
3822 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3823 struct net_device *dev, unsigned long event)
3824 {
3825 struct in_device *indev;
3826
3827 indev = in_dev_get(dev);
3828 if (!indev)
3829 return;
3830
3831 for_ifa(indev) {
3832 switch (event) {
3833 case NETDEV_UP:
3834 qlcnic_config_ipaddr(adapter,
3835 ifa->ifa_address, QLCNIC_IP_UP);
3836 break;
3837 case NETDEV_DOWN:
3838 qlcnic_config_ipaddr(adapter,
3839 ifa->ifa_address, QLCNIC_IP_DOWN);
3840 break;
3841 default:
3842 break;
3843 }
3844 } endfor_ifa(indev);
3845
3846 in_dev_put(indev);
3847 }
3848
3849 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3850 {
3851 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3852 struct net_device *dev;
3853 u16 vid;
3854
3855 qlcnic_config_indev_addr(adapter, netdev, event);
3856
3857 rcu_read_lock();
3858 for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3859 dev = __vlan_find_dev_deep(netdev, htons(ETH_P_8021Q), vid);
3860 if (!dev)
3861 continue;
3862 qlcnic_config_indev_addr(adapter, dev, event);
3863 }
3864 rcu_read_unlock();
3865 }
3866
3867 static int qlcnic_netdev_event(struct notifier_block *this,
3868 unsigned long event, void *ptr)
3869 {
3870 struct qlcnic_adapter *adapter;
3871 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3872
3873 recheck:
3874 if (dev == NULL)
3875 goto done;
3876
3877 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3878 dev = vlan_dev_real_dev(dev);
3879 goto recheck;
3880 }
3881
3882 if (!is_qlcnic_netdev(dev))
3883 goto done;
3884
3885 adapter = netdev_priv(dev);
3886
3887 if (!adapter)
3888 goto done;
3889
3890 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3891 goto done;
3892
3893 qlcnic_config_indev_addr(adapter, dev, event);
3894 done:
3895 return NOTIFY_DONE;
3896 }
3897
3898 static int
3899 qlcnic_inetaddr_event(struct notifier_block *this,
3900 unsigned long event, void *ptr)
3901 {
3902 struct qlcnic_adapter *adapter;
3903 struct net_device *dev;
3904
3905 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3906
3907 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3908
3909 recheck:
3910 if (dev == NULL)
3911 goto done;
3912
3913 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3914 dev = vlan_dev_real_dev(dev);
3915 goto recheck;
3916 }
3917
3918 if (!is_qlcnic_netdev(dev))
3919 goto done;
3920
3921 adapter = netdev_priv(dev);
3922
3923 if (!adapter)
3924 goto done;
3925
3926 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3927 goto done;
3928
3929 switch (event) {
3930 case NETDEV_UP:
3931 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3932
3933 break;
3934 case NETDEV_DOWN:
3935 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3936
3937 break;
3938 default:
3939 break;
3940 }
3941
3942 done:
3943 return NOTIFY_DONE;
3944 }
3945
3946 static struct notifier_block qlcnic_netdev_cb = {
3947 .notifier_call = qlcnic_netdev_event,
3948 };
3949
3950 static struct notifier_block qlcnic_inetaddr_cb = {
3951 .notifier_call = qlcnic_inetaddr_event,
3952 };
3953 #else
3954 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3955 { }
3956 #endif
3957 static const struct pci_error_handlers qlcnic_err_handler = {
3958 .error_detected = qlcnic_io_error_detected,
3959 .slot_reset = qlcnic_io_slot_reset,
3960 .resume = qlcnic_io_resume,
3961 };
3962
3963 static struct pci_driver qlcnic_driver = {
3964 .name = qlcnic_driver_name,
3965 .id_table = qlcnic_pci_tbl,
3966 .probe = qlcnic_probe,
3967 .remove = qlcnic_remove,
3968 #ifdef CONFIG_PM
3969 .suspend = qlcnic_suspend,
3970 .resume = qlcnic_resume,
3971 #endif
3972 .shutdown = qlcnic_shutdown,
3973 .err_handler = &qlcnic_err_handler,
3974 #ifdef CONFIG_QLCNIC_SRIOV
3975 .sriov_configure = qlcnic_pci_sriov_configure,
3976 #endif
3977
3978 };
3979
3980 static int __init qlcnic_init_module(void)
3981 {
3982 int ret;
3983
3984 printk(KERN_INFO "%s\n", qlcnic_driver_string);
3985
3986 #ifdef CONFIG_INET
3987 register_netdevice_notifier(&qlcnic_netdev_cb);
3988 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3989 #endif
3990
3991 ret = pci_register_driver(&qlcnic_driver);
3992 if (ret) {
3993 #ifdef CONFIG_INET
3994 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3995 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3996 #endif
3997 }
3998
3999 return ret;
4000 }
4001
4002 module_init(qlcnic_init_module);
4003
4004 static void __exit qlcnic_exit_module(void)
4005 {
4006 pci_unregister_driver(&qlcnic_driver);
4007
4008 #ifdef CONFIG_INET
4009 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4010 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4011 #endif
4012 }
4013
4014 module_exit(qlcnic_exit_module);
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