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qlcnic: Cleanup qlcnic_enable_msix() return values
[deliverable/linux.git] / drivers / net / ethernet / qlogic / qlcnic / qlcnic_main.c
1 /*
2 * QLogic qlcnic NIC Driver
3 * Copyright (c) 2009-2013 QLogic Corporation
4 *
5 * See LICENSE.qlcnic for copyright and licensing details.
6 */
7
8 #include <linux/vmalloc.h>
9 #include <linux/interrupt.h>
10
11 #include "qlcnic.h"
12 #include "qlcnic_sriov.h"
13 #include "qlcnic_hw.h"
14
15 #include <linux/swab.h>
16 #include <linux/dma-mapping.h>
17 #include <linux/if_vlan.h>
18 #include <net/ip.h>
19 #include <linux/ipv6.h>
20 #include <linux/inetdevice.h>
21 #include <linux/aer.h>
22 #include <linux/log2.h>
23 #include <linux/pci.h>
24
25 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
26 MODULE_LICENSE("GPL");
27 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
28 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
29
30 char qlcnic_driver_name[] = "qlcnic";
31 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
32 "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
33
34 static int qlcnic_mac_learn;
35 module_param(qlcnic_mac_learn, int, 0444);
36 MODULE_PARM_DESC(qlcnic_mac_learn,
37 "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
38
39 int qlcnic_use_msi = 1;
40 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
41 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
42
43 int qlcnic_use_msi_x = 1;
44 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
45 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
46
47 int qlcnic_auto_fw_reset = 1;
48 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
49 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
50
51 int qlcnic_load_fw_file;
52 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file)");
53 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
54
55 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
56 static void qlcnic_remove(struct pci_dev *pdev);
57 static int qlcnic_open(struct net_device *netdev);
58 static int qlcnic_close(struct net_device *netdev);
59 static void qlcnic_tx_timeout(struct net_device *netdev);
60 static void qlcnic_attach_work(struct work_struct *work);
61 static void qlcnic_fwinit_work(struct work_struct *work);
62 #ifdef CONFIG_NET_POLL_CONTROLLER
63 static void qlcnic_poll_controller(struct net_device *netdev);
64 #endif
65
66 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
67 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
68
69 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
70 static irqreturn_t qlcnic_intr(int irq, void *data);
71 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
72 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
73 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
74
75 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
76 static int qlcnic_start_firmware(struct qlcnic_adapter *);
77
78 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
79 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
80 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
81 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
82 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
83
84 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *);
85 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *, u32);
86 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *);
87 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *);
88 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *);
89 static void qlcnic_82xx_io_resume(struct pci_dev *);
90 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
91 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *,
92 pci_channel_state_t);
93
94 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
95 {
96 struct qlcnic_hardware_context *ahw = adapter->ahw;
97
98 if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
99 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
100 else
101 return 1;
102 }
103
104 /* PCI Device ID Table */
105 #define ENTRY(device) \
106 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
107 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
108
109 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
110 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
111 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
112 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
113 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
114 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
115 {0,}
116 };
117
118 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
119
120
121 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
122 {
123 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
124 }
125
126 static const u32 msi_tgt_status[8] = {
127 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
128 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
129 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
130 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
131 };
132
133 static const u32 qlcnic_reg_tbl[] = {
134 0x1B20A8, /* PEG_HALT_STAT1 */
135 0x1B20AC, /* PEG_HALT_STAT2 */
136 0x1B20B0, /* FW_HEARTBEAT */
137 0x1B2100, /* LOCK ID */
138 0x1B2128, /* FW_CAPABILITIES */
139 0x1B2138, /* drv active */
140 0x1B2140, /* dev state */
141 0x1B2144, /* drv state */
142 0x1B2148, /* drv scratch */
143 0x1B214C, /* dev partition info */
144 0x1B2174, /* drv idc ver */
145 0x1B2150, /* fw version major */
146 0x1B2154, /* fw version minor */
147 0x1B2158, /* fw version sub */
148 0x1B219C, /* npar state */
149 0x1B21FC, /* FW_IMG_VALID */
150 0x1B2250, /* CMD_PEG_STATE */
151 0x1B233C, /* RCV_PEG_STATE */
152 0x1B23B4, /* ASIC TEMP */
153 0x1B216C, /* FW api */
154 0x1B2170, /* drv op mode */
155 0x13C010, /* flash lock */
156 0x13C014, /* flash unlock */
157 };
158
159 static const struct qlcnic_board_info qlcnic_boards[] = {
160 { PCI_VENDOR_ID_QLOGIC,
161 PCI_DEVICE_ID_QLOGIC_QLE844X,
162 0x0,
163 0x0,
164 "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
165 { PCI_VENDOR_ID_QLOGIC,
166 PCI_DEVICE_ID_QLOGIC_QLE834X,
167 PCI_VENDOR_ID_QLOGIC,
168 0x24e,
169 "8300 Series Dual Port 10GbE Converged Network Adapter "
170 "(TCP/IP Networking)" },
171 { PCI_VENDOR_ID_QLOGIC,
172 PCI_DEVICE_ID_QLOGIC_QLE834X,
173 PCI_VENDOR_ID_QLOGIC,
174 0x243,
175 "8300 Series Single Port 10GbE Converged Network Adapter "
176 "(TCP/IP Networking)" },
177 { PCI_VENDOR_ID_QLOGIC,
178 PCI_DEVICE_ID_QLOGIC_QLE834X,
179 PCI_VENDOR_ID_QLOGIC,
180 0x24a,
181 "8300 Series Dual Port 10GbE Converged Network Adapter "
182 "(TCP/IP Networking)" },
183 { PCI_VENDOR_ID_QLOGIC,
184 PCI_DEVICE_ID_QLOGIC_QLE834X,
185 PCI_VENDOR_ID_QLOGIC,
186 0x246,
187 "8300 Series Dual Port 10GbE Converged Network Adapter "
188 "(TCP/IP Networking)" },
189 { PCI_VENDOR_ID_QLOGIC,
190 PCI_DEVICE_ID_QLOGIC_QLE834X,
191 PCI_VENDOR_ID_QLOGIC,
192 0x252,
193 "8300 Series Dual Port 10GbE Converged Network Adapter "
194 "(TCP/IP Networking)" },
195 { PCI_VENDOR_ID_QLOGIC,
196 PCI_DEVICE_ID_QLOGIC_QLE834X,
197 PCI_VENDOR_ID_QLOGIC,
198 0x26e,
199 "8300 Series Dual Port 10GbE Converged Network Adapter "
200 "(TCP/IP Networking)" },
201 { PCI_VENDOR_ID_QLOGIC,
202 PCI_DEVICE_ID_QLOGIC_QLE834X,
203 PCI_VENDOR_ID_QLOGIC,
204 0x260,
205 "8300 Series Dual Port 10GbE Converged Network Adapter "
206 "(TCP/IP Networking)" },
207 { PCI_VENDOR_ID_QLOGIC,
208 PCI_DEVICE_ID_QLOGIC_QLE834X,
209 PCI_VENDOR_ID_QLOGIC,
210 0x266,
211 "8300 Series Single Port 10GbE Converged Network Adapter "
212 "(TCP/IP Networking)" },
213 { PCI_VENDOR_ID_QLOGIC,
214 PCI_DEVICE_ID_QLOGIC_QLE834X,
215 PCI_VENDOR_ID_QLOGIC,
216 0x269,
217 "8300 Series Dual Port 10GbE Converged Network Adapter "
218 "(TCP/IP Networking)" },
219 { PCI_VENDOR_ID_QLOGIC,
220 PCI_DEVICE_ID_QLOGIC_QLE834X,
221 PCI_VENDOR_ID_QLOGIC,
222 0x271,
223 "8300 Series Dual Port 10GbE Converged Network Adapter "
224 "(TCP/IP Networking)" },
225 { PCI_VENDOR_ID_QLOGIC,
226 PCI_DEVICE_ID_QLOGIC_QLE834X,
227 0x0, 0x0, "8300 Series 1/10GbE Controller" },
228 { PCI_VENDOR_ID_QLOGIC,
229 PCI_DEVICE_ID_QLOGIC_QLE824X,
230 PCI_VENDOR_ID_QLOGIC,
231 0x203,
232 "8200 Series Single Port 10GbE Converged Network Adapter"
233 "(TCP/IP Networking)" },
234 { PCI_VENDOR_ID_QLOGIC,
235 PCI_DEVICE_ID_QLOGIC_QLE824X,
236 PCI_VENDOR_ID_QLOGIC,
237 0x207,
238 "8200 Series Dual Port 10GbE Converged Network Adapter"
239 "(TCP/IP Networking)" },
240 { PCI_VENDOR_ID_QLOGIC,
241 PCI_DEVICE_ID_QLOGIC_QLE824X,
242 PCI_VENDOR_ID_QLOGIC,
243 0x20b,
244 "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
245 { PCI_VENDOR_ID_QLOGIC,
246 PCI_DEVICE_ID_QLOGIC_QLE824X,
247 PCI_VENDOR_ID_QLOGIC,
248 0x20c,
249 "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
250 { PCI_VENDOR_ID_QLOGIC,
251 PCI_DEVICE_ID_QLOGIC_QLE824X,
252 PCI_VENDOR_ID_QLOGIC,
253 0x20f,
254 "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
255 { PCI_VENDOR_ID_QLOGIC,
256 PCI_DEVICE_ID_QLOGIC_QLE824X,
257 0x103c, 0x3733,
258 "NC523SFP 10Gb 2-port Server Adapter" },
259 { PCI_VENDOR_ID_QLOGIC,
260 PCI_DEVICE_ID_QLOGIC_QLE824X,
261 0x103c, 0x3346,
262 "CN1000Q Dual Port Converged Network Adapter" },
263 { PCI_VENDOR_ID_QLOGIC,
264 PCI_DEVICE_ID_QLOGIC_QLE824X,
265 PCI_VENDOR_ID_QLOGIC,
266 0x210,
267 "QME8242-k 10GbE Dual Port Mezzanine Card" },
268 { PCI_VENDOR_ID_QLOGIC,
269 PCI_DEVICE_ID_QLOGIC_QLE824X,
270 0x0, 0x0, "cLOM8214 1/10GbE Controller" },
271 };
272
273 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
274
275 static const
276 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
277
278 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
279 {
280 int size = sizeof(struct qlcnic_host_sds_ring) * count;
281
282 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
283
284 return recv_ctx->sds_rings == NULL;
285 }
286
287 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
288 {
289 if (recv_ctx->sds_rings != NULL)
290 kfree(recv_ctx->sds_rings);
291
292 recv_ctx->sds_rings = NULL;
293 }
294
295 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
296 {
297 struct net_device *netdev = adapter->netdev;
298 struct pci_dev *pdev = adapter->pdev;
299 u8 mac_addr[ETH_ALEN];
300 int ret;
301
302 ret = qlcnic_get_mac_address(adapter, mac_addr,
303 adapter->ahw->pci_func);
304 if (ret)
305 return ret;
306
307 memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
308 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
309
310 /* set station address */
311
312 if (!is_valid_ether_addr(netdev->dev_addr))
313 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
314 netdev->dev_addr);
315
316 return 0;
317 }
318
319 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
320 {
321 struct qlcnic_mac_vlan_list *cur;
322 struct list_head *head;
323
324 list_for_each(head, &adapter->mac_list) {
325 cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
326 if (ether_addr_equal_unaligned(adapter->mac_addr, cur->mac_addr)) {
327 qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
328 0, QLCNIC_MAC_DEL);
329 list_del(&cur->list);
330 kfree(cur);
331 return;
332 }
333 }
334 }
335
336 static int qlcnic_set_mac(struct net_device *netdev, void *p)
337 {
338 struct qlcnic_adapter *adapter = netdev_priv(netdev);
339 struct sockaddr *addr = p;
340
341 if (qlcnic_sriov_vf_check(adapter))
342 return -EINVAL;
343
344 if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
345 return -EOPNOTSUPP;
346
347 if (!is_valid_ether_addr(addr->sa_data))
348 return -EINVAL;
349
350 if (ether_addr_equal_unaligned(adapter->mac_addr, addr->sa_data))
351 return 0;
352
353 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
354 netif_device_detach(netdev);
355 qlcnic_napi_disable(adapter);
356 }
357
358 qlcnic_delete_adapter_mac(adapter);
359 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
360 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
361 qlcnic_set_multi(adapter->netdev);
362
363 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
364 netif_device_attach(netdev);
365 qlcnic_napi_enable(adapter);
366 }
367 return 0;
368 }
369
370 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
371 struct net_device *netdev, const unsigned char *addr)
372 {
373 struct qlcnic_adapter *adapter = netdev_priv(netdev);
374 int err = -EOPNOTSUPP;
375
376 if (!adapter->fdb_mac_learn)
377 return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
378
379 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
380 if (is_unicast_ether_addr(addr)) {
381 err = dev_uc_del(netdev, addr);
382 if (!err)
383 err = qlcnic_nic_del_mac(adapter, addr);
384 } else if (is_multicast_ether_addr(addr)) {
385 err = dev_mc_del(netdev, addr);
386 } else {
387 err = -EINVAL;
388 }
389 }
390 return err;
391 }
392
393 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
394 struct net_device *netdev,
395 const unsigned char *addr, u16 flags)
396 {
397 struct qlcnic_adapter *adapter = netdev_priv(netdev);
398 int err = 0;
399
400 if (!adapter->fdb_mac_learn)
401 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
402
403 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
404 pr_info("%s: FDB e-switch is not enabled\n", __func__);
405 return -EOPNOTSUPP;
406 }
407
408 if (ether_addr_equal(addr, adapter->mac_addr))
409 return err;
410
411 if (is_unicast_ether_addr(addr)) {
412 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
413 err = dev_uc_add_excl(netdev, addr);
414 else
415 err = -ENOMEM;
416 } else if (is_multicast_ether_addr(addr)) {
417 err = dev_mc_add_excl(netdev, addr);
418 } else {
419 err = -EINVAL;
420 }
421
422 return err;
423 }
424
425 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
426 struct net_device *netdev, int idx)
427 {
428 struct qlcnic_adapter *adapter = netdev_priv(netdev);
429
430 if (!adapter->fdb_mac_learn)
431 return ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
432
433 if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
434 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
435
436 return idx;
437 }
438
439 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
440 {
441 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
442 usleep_range(10000, 11000);
443
444 if (!adapter->fw_work.work.func)
445 return;
446
447 cancel_delayed_work_sync(&adapter->fw_work);
448 }
449
450 static int qlcnic_get_phys_port_id(struct net_device *netdev,
451 struct netdev_phys_port_id *ppid)
452 {
453 struct qlcnic_adapter *adapter = netdev_priv(netdev);
454 struct qlcnic_hardware_context *ahw = adapter->ahw;
455
456 if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
457 return -EOPNOTSUPP;
458
459 ppid->id_len = sizeof(ahw->phys_port_id);
460 memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
461
462 return 0;
463 }
464
465 static const struct net_device_ops qlcnic_netdev_ops = {
466 .ndo_open = qlcnic_open,
467 .ndo_stop = qlcnic_close,
468 .ndo_start_xmit = qlcnic_xmit_frame,
469 .ndo_get_stats = qlcnic_get_stats,
470 .ndo_validate_addr = eth_validate_addr,
471 .ndo_set_rx_mode = qlcnic_set_multi,
472 .ndo_set_mac_address = qlcnic_set_mac,
473 .ndo_change_mtu = qlcnic_change_mtu,
474 .ndo_fix_features = qlcnic_fix_features,
475 .ndo_set_features = qlcnic_set_features,
476 .ndo_tx_timeout = qlcnic_tx_timeout,
477 .ndo_vlan_rx_add_vid = qlcnic_vlan_rx_add,
478 .ndo_vlan_rx_kill_vid = qlcnic_vlan_rx_del,
479 .ndo_fdb_add = qlcnic_fdb_add,
480 .ndo_fdb_del = qlcnic_fdb_del,
481 .ndo_fdb_dump = qlcnic_fdb_dump,
482 .ndo_get_phys_port_id = qlcnic_get_phys_port_id,
483 #ifdef CONFIG_NET_POLL_CONTROLLER
484 .ndo_poll_controller = qlcnic_poll_controller,
485 #endif
486 #ifdef CONFIG_QLCNIC_SRIOV
487 .ndo_set_vf_mac = qlcnic_sriov_set_vf_mac,
488 .ndo_set_vf_tx_rate = qlcnic_sriov_set_vf_tx_rate,
489 .ndo_get_vf_config = qlcnic_sriov_get_vf_config,
490 .ndo_set_vf_vlan = qlcnic_sriov_set_vf_vlan,
491 .ndo_set_vf_spoofchk = qlcnic_sriov_set_vf_spoofchk,
492 #endif
493 };
494
495 static const struct net_device_ops qlcnic_netdev_failed_ops = {
496 .ndo_open = qlcnic_open,
497 };
498
499 static struct qlcnic_nic_template qlcnic_ops = {
500 .config_bridged_mode = qlcnic_config_bridged_mode,
501 .config_led = qlcnic_82xx_config_led,
502 .start_firmware = qlcnic_82xx_start_firmware,
503 .request_reset = qlcnic_82xx_dev_request_reset,
504 .cancel_idc_work = qlcnic_82xx_cancel_idc_work,
505 .napi_add = qlcnic_82xx_napi_add,
506 .napi_del = qlcnic_82xx_napi_del,
507 .config_ipaddr = qlcnic_82xx_config_ipaddr,
508 .shutdown = qlcnic_82xx_shutdown,
509 .resume = qlcnic_82xx_resume,
510 .clear_legacy_intr = qlcnic_82xx_clear_legacy_intr,
511 };
512
513 struct qlcnic_nic_template qlcnic_vf_ops = {
514 .config_bridged_mode = qlcnicvf_config_bridged_mode,
515 .config_led = qlcnicvf_config_led,
516 .start_firmware = qlcnicvf_start_firmware
517 };
518
519 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
520 .read_crb = qlcnic_82xx_read_crb,
521 .write_crb = qlcnic_82xx_write_crb,
522 .read_reg = qlcnic_82xx_hw_read_wx_2M,
523 .write_reg = qlcnic_82xx_hw_write_wx_2M,
524 .get_mac_address = qlcnic_82xx_get_mac_address,
525 .setup_intr = qlcnic_82xx_setup_intr,
526 .alloc_mbx_args = qlcnic_82xx_alloc_mbx_args,
527 .mbx_cmd = qlcnic_82xx_issue_cmd,
528 .get_func_no = qlcnic_82xx_get_func_no,
529 .api_lock = qlcnic_82xx_api_lock,
530 .api_unlock = qlcnic_82xx_api_unlock,
531 .add_sysfs = qlcnic_82xx_add_sysfs,
532 .remove_sysfs = qlcnic_82xx_remove_sysfs,
533 .process_lb_rcv_ring_diag = qlcnic_82xx_process_rcv_ring_diag,
534 .create_rx_ctx = qlcnic_82xx_fw_cmd_create_rx_ctx,
535 .create_tx_ctx = qlcnic_82xx_fw_cmd_create_tx_ctx,
536 .del_rx_ctx = qlcnic_82xx_fw_cmd_del_rx_ctx,
537 .del_tx_ctx = qlcnic_82xx_fw_cmd_del_tx_ctx,
538 .setup_link_event = qlcnic_82xx_linkevent_request,
539 .get_nic_info = qlcnic_82xx_get_nic_info,
540 .get_pci_info = qlcnic_82xx_get_pci_info,
541 .set_nic_info = qlcnic_82xx_set_nic_info,
542 .change_macvlan = qlcnic_82xx_sre_macaddr_change,
543 .napi_enable = qlcnic_82xx_napi_enable,
544 .napi_disable = qlcnic_82xx_napi_disable,
545 .config_intr_coal = qlcnic_82xx_config_intr_coalesce,
546 .config_rss = qlcnic_82xx_config_rss,
547 .config_hw_lro = qlcnic_82xx_config_hw_lro,
548 .config_loopback = qlcnic_82xx_set_lb_mode,
549 .clear_loopback = qlcnic_82xx_clear_lb_mode,
550 .config_promisc_mode = qlcnic_82xx_nic_set_promisc,
551 .change_l2_filter = qlcnic_82xx_change_filter,
552 .get_board_info = qlcnic_82xx_get_board_info,
553 .set_mac_filter_count = qlcnic_82xx_set_mac_filter_count,
554 .free_mac_list = qlcnic_82xx_free_mac_list,
555 .read_phys_port_id = qlcnic_82xx_read_phys_port_id,
556 .io_error_detected = qlcnic_82xx_io_error_detected,
557 .io_slot_reset = qlcnic_82xx_io_slot_reset,
558 .io_resume = qlcnic_82xx_io_resume,
559 .get_beacon_state = qlcnic_82xx_get_beacon_state,
560 .enable_sds_intr = qlcnic_82xx_enable_sds_intr,
561 .disable_sds_intr = qlcnic_82xx_disable_sds_intr,
562 .enable_tx_intr = qlcnic_82xx_enable_tx_intr,
563 .disable_tx_intr = qlcnic_82xx_disable_tx_intr,
564 };
565
566 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
567 {
568 struct qlcnic_hardware_context *ahw = adapter->ahw;
569
570 if (qlcnic_82xx_check(adapter) &&
571 (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
572 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
573 return 0;
574 } else {
575 return 1;
576 }
577 }
578
579 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
580 int queue_type)
581 {
582 int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
583
584 if (queue_type == QLCNIC_RX_QUEUE)
585 max_rings = adapter->max_sds_rings;
586 else if (queue_type == QLCNIC_TX_QUEUE)
587 max_rings = adapter->max_tx_rings;
588
589 num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
590 max_rings));
591
592 if (ring_cnt > num_rings)
593 return num_rings;
594 else
595 return ring_cnt;
596 }
597
598 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
599 {
600 /* 83xx adapter does not have max_tx_rings intialized in probe */
601 if (adapter->max_tx_rings)
602 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
603 QLCNIC_TX_QUEUE);
604 else
605 adapter->drv_tx_rings = tx_cnt;
606 }
607
608 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
609 {
610 /* 83xx adapter does not have max_sds_rings intialized in probe */
611 if (adapter->max_sds_rings)
612 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
613 QLCNIC_RX_QUEUE);
614 else
615 adapter->drv_sds_rings = rx_cnt;
616 }
617
618 int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
619 {
620 struct pci_dev *pdev = adapter->pdev;
621 int num_msix = 0, err = 0, vector;
622
623 adapter->flags &= ~QLCNIC_TSS_RSS;
624
625 if (adapter->drv_tss_rings > 0)
626 num_msix += adapter->drv_tss_rings;
627 else
628 num_msix += adapter->drv_tx_rings;
629
630 if (adapter->drv_rss_rings > 0)
631 num_msix += adapter->drv_rss_rings;
632 else
633 num_msix += adapter->drv_sds_rings;
634
635 if (qlcnic_83xx_check(adapter))
636 num_msix += 1;
637
638 if (!adapter->msix_entries) {
639 adapter->msix_entries = kcalloc(num_msix,
640 sizeof(struct msix_entry),
641 GFP_KERNEL);
642 if (!adapter->msix_entries)
643 return -ENOMEM;
644 }
645
646 restore:
647 for (vector = 0; vector < num_msix; vector++)
648 adapter->msix_entries[vector].entry = vector;
649
650 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
651 if (err == 0) {
652 adapter->ahw->num_msix = num_msix;
653 if (adapter->drv_tss_rings > 0)
654 adapter->drv_tx_rings = adapter->drv_tss_rings;
655
656 if (adapter->drv_rss_rings > 0)
657 adapter->drv_sds_rings = adapter->drv_rss_rings;
658 } else {
659 netdev_info(adapter->netdev,
660 "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
661 num_msix, err);
662
663 num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
664
665 /* Set rings to 0 so we can restore original TSS/RSS count */
666 adapter->drv_tss_rings = 0;
667 adapter->drv_rss_rings = 0;
668
669 if (qlcnic_83xx_check(adapter))
670 num_msix += 1;
671
672 netdev_info(adapter->netdev,
673 "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
674 adapter->drv_tx_rings, adapter->drv_sds_rings,
675 num_msix);
676 goto restore;
677
678 err = -EIO;
679 }
680
681 return err;
682 }
683
684 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
685 {
686 struct pci_dev *pdev = adapter->pdev;
687 int err, vector;
688
689 if (!adapter->msix_entries) {
690 adapter->msix_entries = kcalloc(num_msix,
691 sizeof(struct msix_entry),
692 GFP_KERNEL);
693 if (!adapter->msix_entries)
694 return -ENOMEM;
695 }
696
697 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
698
699 if (adapter->ahw->msix_supported) {
700 enable_msix:
701 for (vector = 0; vector < num_msix; vector++)
702 adapter->msix_entries[vector].entry = vector;
703
704 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
705 if (err == 0) {
706 adapter->flags |= QLCNIC_MSIX_ENABLED;
707 adapter->ahw->num_msix = num_msix;
708 dev_info(&pdev->dev, "using msi-x interrupts\n");
709 return 0;
710 } else if (err > 0) {
711 dev_info(&pdev->dev,
712 "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
713 num_msix, err);
714
715 if (qlcnic_82xx_check(adapter)) {
716 num_msix = rounddown_pow_of_two(err);
717 if (err < QLCNIC_82XX_MINIMUM_VECTOR)
718 return -ENOSPC;
719 } else {
720 num_msix = rounddown_pow_of_two(err - 1);
721 num_msix += 1;
722 if (err < QLCNIC_83XX_MINIMUM_VECTOR)
723 return -ENOSPC;
724 }
725
726 if (qlcnic_82xx_check(adapter) &&
727 !qlcnic_check_multi_tx(adapter)) {
728 adapter->drv_sds_rings = num_msix;
729 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
730 } else {
731 /* Distribute vectors equally */
732 adapter->drv_tx_rings = num_msix / 2;
733 adapter->drv_sds_rings = adapter->drv_tx_rings;
734 }
735
736 if (num_msix) {
737 dev_info(&pdev->dev,
738 "Trying to allocate %d MSI-X interrupt vectors\n",
739 num_msix);
740 goto enable_msix;
741 }
742 } else {
743 dev_info(&pdev->dev,
744 "Unable to allocate %d MSI-X vectors, err=%d\n",
745 num_msix, err);
746 return err;
747 }
748 }
749
750 return -EIO;
751 }
752
753 static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
754 {
755 int num_msix;
756
757 num_msix = adapter->drv_sds_rings;
758
759 if (qlcnic_check_multi_tx(adapter))
760 num_msix += adapter->drv_tx_rings;
761 else
762 num_msix += QLCNIC_SINGLE_RING;
763
764 return num_msix;
765 }
766
767 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
768 {
769 int err = 0;
770 u32 offset, mask_reg;
771 const struct qlcnic_legacy_intr_set *legacy_intrp;
772 struct qlcnic_hardware_context *ahw = adapter->ahw;
773 struct pci_dev *pdev = adapter->pdev;
774
775 if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
776 adapter->flags |= QLCNIC_MSI_ENABLED;
777 offset = msi_tgt_status[adapter->ahw->pci_func];
778 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
779 offset);
780 dev_info(&pdev->dev, "using msi interrupts\n");
781 adapter->msix_entries[0].vector = pdev->irq;
782 return err;
783 }
784
785 if (qlcnic_use_msi || qlcnic_use_msi_x)
786 return -EOPNOTSUPP;
787
788 legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
789 adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
790 offset = legacy_intrp->tgt_status_reg;
791 adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
792 mask_reg = legacy_intrp->tgt_mask_reg;
793 adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
794 adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
795 adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
796 dev_info(&pdev->dev, "using legacy interrupts\n");
797 adapter->msix_entries[0].vector = pdev->irq;
798 return err;
799 }
800
801 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
802 {
803 int num_msix, err = 0;
804
805 if (adapter->flags & QLCNIC_TSS_RSS) {
806 err = qlcnic_setup_tss_rss_intr(adapter);
807 if (err < 0)
808 return err;
809 num_msix = adapter->ahw->num_msix;
810 } else {
811 num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
812
813 err = qlcnic_enable_msix(adapter, num_msix);
814 if (err == -ENOMEM)
815 return err;
816
817 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
818 qlcnic_disable_multi_tx(adapter);
819
820 err = qlcnic_enable_msi_legacy(adapter);
821 if (!err)
822 return err;
823 }
824 }
825
826 return 0;
827 }
828
829 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
830 {
831 struct qlcnic_hardware_context *ahw = adapter->ahw;
832 int err, i;
833
834 if (qlcnic_check_multi_tx(adapter) &&
835 !ahw->diag_test &&
836 (adapter->flags & QLCNIC_MSIX_ENABLED)) {
837 ahw->intr_tbl = vzalloc(ahw->num_msix *
838 sizeof(struct qlcnic_intrpt_config));
839 if (!ahw->intr_tbl)
840 return -ENOMEM;
841
842 for (i = 0; i < ahw->num_msix; i++) {
843 ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
844 ahw->intr_tbl[i].id = i;
845 ahw->intr_tbl[i].src = 0;
846 }
847
848 err = qlcnic_82xx_config_intrpt(adapter, 1);
849 if (err)
850 dev_err(&adapter->pdev->dev,
851 "Failed to configure Interrupt for %d vector\n",
852 ahw->num_msix);
853 return err;
854 }
855
856 return 0;
857 }
858
859 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
860 {
861 if (adapter->flags & QLCNIC_MSIX_ENABLED)
862 pci_disable_msix(adapter->pdev);
863 if (adapter->flags & QLCNIC_MSI_ENABLED)
864 pci_disable_msi(adapter->pdev);
865
866 kfree(adapter->msix_entries);
867 adapter->msix_entries = NULL;
868
869 if (adapter->ahw->intr_tbl) {
870 vfree(adapter->ahw->intr_tbl);
871 adapter->ahw->intr_tbl = NULL;
872 }
873 }
874
875 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
876 {
877 if (ahw->pci_base0 != NULL)
878 iounmap(ahw->pci_base0);
879 }
880
881 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
882 {
883 struct qlcnic_hardware_context *ahw = adapter->ahw;
884 struct qlcnic_pci_info *pci_info;
885 int ret;
886
887 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
888 switch (ahw->port_type) {
889 case QLCNIC_GBE:
890 ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
891 break;
892 case QLCNIC_XGBE:
893 ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
894 break;
895 }
896 return 0;
897 }
898
899 if (ahw->op_mode == QLCNIC_MGMT_FUNC)
900 return 0;
901
902 pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
903 if (!pci_info)
904 return -ENOMEM;
905
906 ret = qlcnic_get_pci_info(adapter, pci_info);
907 kfree(pci_info);
908 return ret;
909 }
910
911 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
912 {
913 bool ret = false;
914
915 if (qlcnic_84xx_check(adapter)) {
916 ret = true;
917 } else if (qlcnic_83xx_check(adapter)) {
918 if (adapter->ahw->extra_capability[0] &
919 QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
920 ret = true;
921 else
922 ret = false;
923 }
924
925 return ret;
926 }
927
928 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
929 {
930 struct qlcnic_hardware_context *ahw = adapter->ahw;
931 struct qlcnic_pci_info *pci_info;
932 int i, id = 0, ret = 0, j = 0;
933 u16 act_pci_func;
934 u8 pfn;
935
936 pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
937 if (!pci_info)
938 return -ENOMEM;
939
940 ret = qlcnic_get_pci_info(adapter, pci_info);
941 if (ret)
942 goto err_pci_info;
943
944 act_pci_func = ahw->total_nic_func;
945
946 adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
947 act_pci_func, GFP_KERNEL);
948 if (!adapter->npars) {
949 ret = -ENOMEM;
950 goto err_pci_info;
951 }
952
953 adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
954 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
955 if (!adapter->eswitch) {
956 ret = -ENOMEM;
957 goto err_npars;
958 }
959
960 for (i = 0; i < ahw->max_vnic_func; i++) {
961 pfn = pci_info[i].id;
962
963 if (pfn >= ahw->max_vnic_func) {
964 ret = QL_STATUS_INVALID_PARAM;
965 goto err_eswitch;
966 }
967
968 if (!pci_info[i].active ||
969 (pci_info[i].type != QLCNIC_TYPE_NIC))
970 continue;
971
972 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
973 if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
974 &id))
975 adapter->npars[j].eswitch_status = true;
976 else
977 continue;
978 } else {
979 adapter->npars[j].eswitch_status = true;
980 }
981
982 adapter->npars[j].pci_func = pfn;
983 adapter->npars[j].active = (u8)pci_info[i].active;
984 adapter->npars[j].type = (u8)pci_info[i].type;
985 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
986 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
987 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
988
989 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
990 j++;
991 }
992
993 /* Update eSwitch status for adapters without per port eSwitch
994 * configuration capability
995 */
996 if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
997 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
998 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
999 }
1000
1001 kfree(pci_info);
1002 return 0;
1003
1004 err_eswitch:
1005 kfree(adapter->eswitch);
1006 adapter->eswitch = NULL;
1007 err_npars:
1008 kfree(adapter->npars);
1009 adapter->npars = NULL;
1010 err_pci_info:
1011 kfree(pci_info);
1012
1013 return ret;
1014 }
1015
1016 static int
1017 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1018 {
1019 u8 id;
1020 int ret;
1021 u32 data = QLCNIC_MGMT_FUNC;
1022 struct qlcnic_hardware_context *ahw = adapter->ahw;
1023
1024 ret = qlcnic_api_lock(adapter);
1025 if (ret)
1026 goto err_lock;
1027
1028 id = ahw->pci_func;
1029 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1030 data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1031 QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1032 QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1033 qlcnic_api_unlock(adapter);
1034 err_lock:
1035 return ret;
1036 }
1037
1038 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1039 const struct pci_device_id *ent)
1040 {
1041 u32 op_mode, priv_level;
1042
1043 /* Determine FW API version */
1044 adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1045 QLCNIC_FW_API);
1046
1047 /* Find PCI function number */
1048 qlcnic_get_func_no(adapter);
1049
1050 /* Determine function privilege level */
1051 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1052 if (op_mode == QLC_DEV_DRV_DEFAULT)
1053 priv_level = QLCNIC_MGMT_FUNC;
1054 else
1055 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1056
1057 if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1058 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1059 dev_info(&adapter->pdev->dev,
1060 "HAL Version: %d Non Privileged function\n",
1061 adapter->ahw->fw_hal_version);
1062 adapter->nic_ops = &qlcnic_vf_ops;
1063 } else
1064 adapter->nic_ops = &qlcnic_ops;
1065 }
1066
1067 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1068 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
1069 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1070 {
1071 switch (dev_id) {
1072 case PCI_DEVICE_ID_QLOGIC_QLE824X:
1073 *bar = QLCNIC_82XX_BAR0_LENGTH;
1074 break;
1075 case PCI_DEVICE_ID_QLOGIC_QLE834X:
1076 case PCI_DEVICE_ID_QLOGIC_QLE844X:
1077 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1078 case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1079 *bar = QLCNIC_83XX_BAR0_LENGTH;
1080 break;
1081 default:
1082 *bar = 0;
1083 }
1084 }
1085
1086 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1087 struct qlcnic_hardware_context *ahw)
1088 {
1089 u32 offset;
1090 void __iomem *mem_ptr0 = NULL;
1091 unsigned long mem_len, pci_len0 = 0, bar0_len;
1092
1093 /* remap phys address */
1094 mem_len = pci_resource_len(pdev, 0);
1095
1096 qlcnic_get_bar_length(pdev->device, &bar0_len);
1097 if (mem_len >= bar0_len) {
1098
1099 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1100 if (mem_ptr0 == NULL) {
1101 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1102 return -EIO;
1103 }
1104 pci_len0 = mem_len;
1105 } else {
1106 return -EIO;
1107 }
1108
1109 dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1110
1111 ahw->pci_base0 = mem_ptr0;
1112 ahw->pci_len0 = pci_len0;
1113 offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1114 qlcnic_get_ioaddr(ahw, offset);
1115
1116 return 0;
1117 }
1118
1119 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1120 int index)
1121 {
1122 struct pci_dev *pdev = adapter->pdev;
1123 unsigned short subsystem_vendor;
1124 bool ret = true;
1125
1126 subsystem_vendor = pdev->subsystem_vendor;
1127
1128 if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1129 pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1130 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1131 qlcnic_boards[index].sub_device == pdev->subsystem_device)
1132 ret = true;
1133 else
1134 ret = false;
1135 }
1136
1137 return ret;
1138 }
1139
1140 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1141 {
1142 struct pci_dev *pdev = adapter->pdev;
1143 int i, found = 0;
1144
1145 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1146 if (qlcnic_boards[i].vendor == pdev->vendor &&
1147 qlcnic_boards[i].device == pdev->device &&
1148 qlcnic_validate_subsystem_id(adapter, i)) {
1149 found = 1;
1150 break;
1151 }
1152 }
1153
1154 if (!found)
1155 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1156 else
1157 sprintf(name, "%pM: %s" , adapter->mac_addr,
1158 qlcnic_boards[i].short_name);
1159 }
1160
1161 static void
1162 qlcnic_check_options(struct qlcnic_adapter *adapter)
1163 {
1164 int err;
1165 u32 fw_major, fw_minor, fw_build, prev_fw_version;
1166 struct pci_dev *pdev = adapter->pdev;
1167 struct qlcnic_hardware_context *ahw = adapter->ahw;
1168 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1169
1170 prev_fw_version = adapter->fw_version;
1171
1172 fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1173 fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1174 fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1175
1176 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1177
1178 err = qlcnic_get_board_info(adapter);
1179 if (err) {
1180 dev_err(&pdev->dev, "Error getting board config info.\n");
1181 return;
1182 }
1183 if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1184 if (fw_dump->tmpl_hdr == NULL ||
1185 adapter->fw_version > prev_fw_version) {
1186 if (fw_dump->tmpl_hdr)
1187 vfree(fw_dump->tmpl_hdr);
1188 if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1189 dev_info(&pdev->dev,
1190 "Supports FW dump capability\n");
1191 }
1192 }
1193
1194 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1195 QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1196
1197 if (adapter->ahw->port_type == QLCNIC_XGBE) {
1198 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1199 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1200 adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1201 } else {
1202 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1203 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1204 }
1205
1206 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1207 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1208
1209 } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1210 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1211 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1212 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1213 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1214 }
1215
1216 adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1217
1218 adapter->num_txd = MAX_CMD_DESCRIPTORS;
1219
1220 adapter->max_rds_rings = MAX_RDS_RINGS;
1221 }
1222
1223 static int
1224 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1225 {
1226 struct qlcnic_info nic_info;
1227 int err = 0;
1228
1229 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1230 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1231 if (err)
1232 return err;
1233
1234 adapter->ahw->physical_port = (u8)nic_info.phys_port;
1235 adapter->ahw->switch_mode = nic_info.switch_mode;
1236 adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1237 adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1238 adapter->ahw->capabilities = nic_info.capabilities;
1239
1240 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1241 u32 temp;
1242 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1243 if (err == -EIO)
1244 return err;
1245 adapter->ahw->extra_capability[0] = temp;
1246 } else {
1247 adapter->ahw->extra_capability[0] = 0;
1248 }
1249
1250 adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1251 adapter->ahw->max_mtu = nic_info.max_mtu;
1252
1253 if (adapter->ahw->capabilities & BIT_6) {
1254 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1255 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1256 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1257 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1258
1259 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1260 } else {
1261 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1262 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1263 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1264 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1265 }
1266
1267 return err;
1268 }
1269
1270 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1271 struct qlcnic_esw_func_cfg *esw_cfg)
1272 {
1273 if (esw_cfg->discard_tagged)
1274 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1275 else
1276 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1277
1278 if (esw_cfg->vlan_id) {
1279 adapter->rx_pvid = esw_cfg->vlan_id;
1280 adapter->tx_pvid = esw_cfg->vlan_id;
1281 } else {
1282 adapter->rx_pvid = 0;
1283 adapter->tx_pvid = 0;
1284 }
1285 }
1286
1287 static int
1288 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1289 {
1290 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1291 int err;
1292
1293 if (qlcnic_sriov_vf_check(adapter)) {
1294 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1295 if (err) {
1296 netdev_err(netdev,
1297 "Cannot add VLAN filter for VLAN id %d, err=%d",
1298 vid, err);
1299 return err;
1300 }
1301 }
1302
1303 set_bit(vid, adapter->vlans);
1304 return 0;
1305 }
1306
1307 static int
1308 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1309 {
1310 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1311 int err;
1312
1313 if (qlcnic_sriov_vf_check(adapter)) {
1314 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1315 if (err) {
1316 netdev_err(netdev,
1317 "Cannot delete VLAN filter for VLAN id %d, err=%d",
1318 vid, err);
1319 return err;
1320 }
1321 }
1322
1323 qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1324 clear_bit(vid, adapter->vlans);
1325 return 0;
1326 }
1327
1328 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1329 struct qlcnic_esw_func_cfg *esw_cfg)
1330 {
1331 adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1332 QLCNIC_PROMISC_DISABLED);
1333
1334 if (esw_cfg->mac_anti_spoof)
1335 adapter->flags |= QLCNIC_MACSPOOF;
1336
1337 if (!esw_cfg->mac_override)
1338 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1339
1340 if (!esw_cfg->promisc_mode)
1341 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1342 }
1343
1344 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1345 {
1346 struct qlcnic_esw_func_cfg esw_cfg;
1347
1348 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1349 return 0;
1350
1351 esw_cfg.pci_func = adapter->ahw->pci_func;
1352 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1353 return -EIO;
1354 qlcnic_set_vlan_config(adapter, &esw_cfg);
1355 qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1356 qlcnic_set_netdev_features(adapter, &esw_cfg);
1357
1358 return 0;
1359 }
1360
1361 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1362 struct qlcnic_esw_func_cfg *esw_cfg)
1363 {
1364 struct net_device *netdev = adapter->netdev;
1365
1366 if (qlcnic_83xx_check(adapter))
1367 return;
1368
1369 adapter->offload_flags = esw_cfg->offload_flags;
1370 adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1371 netdev_update_features(netdev);
1372 adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1373 }
1374
1375 static int
1376 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1377 {
1378 u32 op_mode, priv_level;
1379 int err = 0;
1380
1381 err = qlcnic_initialize_nic(adapter);
1382 if (err)
1383 return err;
1384
1385 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1386 return 0;
1387
1388 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1389 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1390
1391 if (op_mode == QLC_DEV_DRV_DEFAULT)
1392 priv_level = QLCNIC_MGMT_FUNC;
1393 else
1394 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1395
1396 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1397 if (priv_level == QLCNIC_MGMT_FUNC) {
1398 adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1399 err = qlcnic_init_pci_info(adapter);
1400 if (err)
1401 return err;
1402 /* Set privilege level for other functions */
1403 qlcnic_set_function_modes(adapter);
1404 dev_info(&adapter->pdev->dev,
1405 "HAL Version: %d, Management function\n",
1406 adapter->ahw->fw_hal_version);
1407 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1408 adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1409 dev_info(&adapter->pdev->dev,
1410 "HAL Version: %d, Privileged function\n",
1411 adapter->ahw->fw_hal_version);
1412 }
1413 } else {
1414 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1415 }
1416
1417 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1418
1419 return err;
1420 }
1421
1422 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1423 {
1424 struct qlcnic_esw_func_cfg esw_cfg;
1425 struct qlcnic_npar_info *npar;
1426 u8 i;
1427
1428 if (adapter->need_fw_reset)
1429 return 0;
1430
1431 for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1432 if (!adapter->npars[i].eswitch_status)
1433 continue;
1434
1435 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1436 esw_cfg.pci_func = adapter->npars[i].pci_func;
1437 esw_cfg.mac_override = BIT_0;
1438 esw_cfg.promisc_mode = BIT_0;
1439 if (qlcnic_82xx_check(adapter)) {
1440 esw_cfg.offload_flags = BIT_0;
1441 if (QLCNIC_IS_TSO_CAPABLE(adapter))
1442 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1443 }
1444 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1445 return -EIO;
1446 npar = &adapter->npars[i];
1447 npar->pvid = esw_cfg.vlan_id;
1448 npar->mac_override = esw_cfg.mac_override;
1449 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1450 npar->discard_tagged = esw_cfg.discard_tagged;
1451 npar->promisc_mode = esw_cfg.promisc_mode;
1452 npar->offload_flags = esw_cfg.offload_flags;
1453 }
1454
1455 return 0;
1456 }
1457
1458
1459 static int
1460 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1461 struct qlcnic_npar_info *npar, int pci_func)
1462 {
1463 struct qlcnic_esw_func_cfg esw_cfg;
1464 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1465 esw_cfg.pci_func = pci_func;
1466 esw_cfg.vlan_id = npar->pvid;
1467 esw_cfg.mac_override = npar->mac_override;
1468 esw_cfg.discard_tagged = npar->discard_tagged;
1469 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1470 esw_cfg.offload_flags = npar->offload_flags;
1471 esw_cfg.promisc_mode = npar->promisc_mode;
1472 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1473 return -EIO;
1474
1475 esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1476 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1477 return -EIO;
1478
1479 return 0;
1480 }
1481
1482 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1483 {
1484 int i, err;
1485 struct qlcnic_npar_info *npar;
1486 struct qlcnic_info nic_info;
1487 u8 pci_func;
1488
1489 if (qlcnic_82xx_check(adapter))
1490 if (!adapter->need_fw_reset)
1491 return 0;
1492
1493 /* Set the NPAR config data after FW reset */
1494 for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1495 npar = &adapter->npars[i];
1496 pci_func = npar->pci_func;
1497 if (!adapter->npars[i].eswitch_status)
1498 continue;
1499
1500 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1501 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1502 if (err)
1503 return err;
1504 nic_info.min_tx_bw = npar->min_bw;
1505 nic_info.max_tx_bw = npar->max_bw;
1506 err = qlcnic_set_nic_info(adapter, &nic_info);
1507 if (err)
1508 return err;
1509
1510 if (npar->enable_pm) {
1511 err = qlcnic_config_port_mirroring(adapter,
1512 npar->dest_npar, 1,
1513 pci_func);
1514 if (err)
1515 return err;
1516 }
1517 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1518 if (err)
1519 return err;
1520 }
1521 return 0;
1522 }
1523
1524 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1525 {
1526 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1527 u32 npar_state;
1528
1529 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1530 return 0;
1531
1532 npar_state = QLC_SHARED_REG_RD32(adapter,
1533 QLCNIC_CRB_DEV_NPAR_STATE);
1534 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1535 msleep(1000);
1536 npar_state = QLC_SHARED_REG_RD32(adapter,
1537 QLCNIC_CRB_DEV_NPAR_STATE);
1538 }
1539 if (!npar_opt_timeo) {
1540 dev_err(&adapter->pdev->dev,
1541 "Waiting for NPAR state to operational timeout\n");
1542 return -EIO;
1543 }
1544 return 0;
1545 }
1546
1547 static int
1548 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1549 {
1550 int err;
1551
1552 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1553 adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1554 return 0;
1555
1556 err = qlcnic_set_default_offload_settings(adapter);
1557 if (err)
1558 return err;
1559
1560 err = qlcnic_reset_npar_config(adapter);
1561 if (err)
1562 return err;
1563
1564 qlcnic_dev_set_npar_ready(adapter);
1565
1566 return err;
1567 }
1568
1569 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1570 {
1571 int err;
1572
1573 err = qlcnic_can_start_firmware(adapter);
1574 if (err < 0)
1575 return err;
1576 else if (!err)
1577 goto check_fw_status;
1578
1579 if (qlcnic_load_fw_file)
1580 qlcnic_request_firmware(adapter);
1581 else {
1582 err = qlcnic_check_flash_fw_ver(adapter);
1583 if (err)
1584 goto err_out;
1585
1586 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1587 }
1588
1589 err = qlcnic_need_fw_reset(adapter);
1590 if (err == 0)
1591 goto check_fw_status;
1592
1593 err = qlcnic_pinit_from_rom(adapter);
1594 if (err)
1595 goto err_out;
1596
1597 err = qlcnic_load_firmware(adapter);
1598 if (err)
1599 goto err_out;
1600
1601 qlcnic_release_firmware(adapter);
1602 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1603
1604 check_fw_status:
1605 err = qlcnic_check_fw_status(adapter);
1606 if (err)
1607 goto err_out;
1608
1609 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1610 qlcnic_idc_debug_info(adapter, 1);
1611 err = qlcnic_check_eswitch_mode(adapter);
1612 if (err) {
1613 dev_err(&adapter->pdev->dev,
1614 "Memory allocation failed for eswitch\n");
1615 goto err_out;
1616 }
1617 err = qlcnic_set_mgmt_operations(adapter);
1618 if (err)
1619 goto err_out;
1620
1621 qlcnic_check_options(adapter);
1622 adapter->need_fw_reset = 0;
1623
1624 qlcnic_release_firmware(adapter);
1625 return 0;
1626
1627 err_out:
1628 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1629 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1630
1631 qlcnic_release_firmware(adapter);
1632 return err;
1633 }
1634
1635 static int
1636 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1637 {
1638 irq_handler_t handler;
1639 struct qlcnic_host_sds_ring *sds_ring;
1640 struct qlcnic_host_tx_ring *tx_ring;
1641 int err, ring, num_sds_rings;
1642
1643 unsigned long flags = 0;
1644 struct net_device *netdev = adapter->netdev;
1645 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1646
1647 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1648 if (qlcnic_82xx_check(adapter))
1649 handler = qlcnic_tmp_intr;
1650 else
1651 handler = qlcnic_83xx_tmp_intr;
1652 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1653 flags |= IRQF_SHARED;
1654
1655 } else {
1656 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1657 handler = qlcnic_msix_intr;
1658 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1659 handler = qlcnic_msi_intr;
1660 else {
1661 flags |= IRQF_SHARED;
1662 if (qlcnic_82xx_check(adapter))
1663 handler = qlcnic_intr;
1664 else
1665 handler = qlcnic_83xx_intr;
1666 }
1667 }
1668 adapter->irq = netdev->irq;
1669
1670 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1671 if (qlcnic_82xx_check(adapter) ||
1672 (qlcnic_83xx_check(adapter) &&
1673 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1674 num_sds_rings = adapter->drv_sds_rings;
1675 for (ring = 0; ring < num_sds_rings; ring++) {
1676 sds_ring = &recv_ctx->sds_rings[ring];
1677 if (qlcnic_82xx_check(adapter) &&
1678 !qlcnic_check_multi_tx(adapter) &&
1679 (ring == (num_sds_rings - 1))) {
1680 if (!(adapter->flags &
1681 QLCNIC_MSIX_ENABLED))
1682 snprintf(sds_ring->name,
1683 sizeof(sds_ring->name),
1684 "qlcnic");
1685 else
1686 snprintf(sds_ring->name,
1687 sizeof(sds_ring->name),
1688 "%s-tx-0-rx-%d",
1689 netdev->name, ring);
1690 } else {
1691 snprintf(sds_ring->name,
1692 sizeof(sds_ring->name),
1693 "%s-rx-%d",
1694 netdev->name, ring);
1695 }
1696 err = request_irq(sds_ring->irq, handler, flags,
1697 sds_ring->name, sds_ring);
1698 if (err)
1699 return err;
1700 }
1701 }
1702 if ((qlcnic_82xx_check(adapter) &&
1703 qlcnic_check_multi_tx(adapter)) ||
1704 (qlcnic_83xx_check(adapter) &&
1705 (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1706 !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1707 handler = qlcnic_msix_tx_intr;
1708 for (ring = 0; ring < adapter->drv_tx_rings;
1709 ring++) {
1710 tx_ring = &adapter->tx_ring[ring];
1711 snprintf(tx_ring->name, sizeof(tx_ring->name),
1712 "%s-tx-%d", netdev->name, ring);
1713 err = request_irq(tx_ring->irq, handler, flags,
1714 tx_ring->name, tx_ring);
1715 if (err)
1716 return err;
1717 }
1718 }
1719 }
1720 return 0;
1721 }
1722
1723 static void
1724 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1725 {
1726 int ring;
1727 struct qlcnic_host_sds_ring *sds_ring;
1728 struct qlcnic_host_tx_ring *tx_ring;
1729
1730 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1731
1732 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1733 if (qlcnic_82xx_check(adapter) ||
1734 (qlcnic_83xx_check(adapter) &&
1735 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1736 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1737 sds_ring = &recv_ctx->sds_rings[ring];
1738 free_irq(sds_ring->irq, sds_ring);
1739 }
1740 }
1741 if ((qlcnic_83xx_check(adapter) &&
1742 !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1743 (qlcnic_82xx_check(adapter) &&
1744 qlcnic_check_multi_tx(adapter))) {
1745 for (ring = 0; ring < adapter->drv_tx_rings;
1746 ring++) {
1747 tx_ring = &adapter->tx_ring[ring];
1748 if (tx_ring->irq)
1749 free_irq(tx_ring->irq, tx_ring);
1750 }
1751 }
1752 }
1753 }
1754
1755 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1756 {
1757 u32 capab = 0;
1758
1759 if (qlcnic_82xx_check(adapter)) {
1760 if (adapter->ahw->extra_capability[0] &
1761 QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1762 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1763 } else {
1764 capab = adapter->ahw->capabilities;
1765 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1766 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1767 }
1768 }
1769
1770 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1771 {
1772 struct qlcnic_hardware_context *ahw = adapter->ahw;
1773 int err;
1774
1775 /* Initialize interrupt coalesce parameters */
1776 ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1777
1778 if (qlcnic_83xx_check(adapter)) {
1779 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1780 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1781 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1782 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1783 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1784
1785 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1786 } else {
1787 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1788 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1789 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1790
1791 err = qlcnic_82xx_set_rx_coalesce(adapter);
1792 }
1793
1794 return err;
1795 }
1796
1797 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1798 {
1799 int ring;
1800 struct qlcnic_host_rds_ring *rds_ring;
1801
1802 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1803 return -EIO;
1804
1805 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1806 return 0;
1807
1808 if (qlcnic_set_eswitch_port_config(adapter))
1809 return -EIO;
1810
1811 qlcnic_get_lro_mss_capability(adapter);
1812
1813 if (qlcnic_fw_create_ctx(adapter))
1814 return -EIO;
1815
1816 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1817 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1818 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1819 }
1820
1821 qlcnic_set_multi(netdev);
1822 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1823
1824 adapter->ahw->linkup = 0;
1825
1826 if (adapter->drv_sds_rings > 1)
1827 qlcnic_config_rss(adapter, 1);
1828
1829 qlcnic_config_def_intr_coalesce(adapter);
1830
1831 if (netdev->features & NETIF_F_LRO)
1832 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1833
1834 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1835 qlcnic_napi_enable(adapter);
1836
1837 qlcnic_linkevent_request(adapter, 1);
1838
1839 adapter->ahw->reset_context = 0;
1840 netif_tx_start_all_queues(netdev);
1841 return 0;
1842 }
1843
1844 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1845 {
1846 int err = 0;
1847
1848 rtnl_lock();
1849 if (netif_running(netdev))
1850 err = __qlcnic_up(adapter, netdev);
1851 rtnl_unlock();
1852
1853 return err;
1854 }
1855
1856 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1857 {
1858 int ring;
1859
1860 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1861 return;
1862
1863 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1864 return;
1865
1866 if (qlcnic_sriov_vf_check(adapter))
1867 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1868 smp_mb();
1869 netif_carrier_off(netdev);
1870 adapter->ahw->linkup = 0;
1871 netif_tx_disable(netdev);
1872
1873 qlcnic_free_mac_list(adapter);
1874
1875 if (adapter->fhash.fnum)
1876 qlcnic_delete_lb_filters(adapter);
1877
1878 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1879
1880 qlcnic_napi_disable(adapter);
1881
1882 qlcnic_fw_destroy_ctx(adapter);
1883 adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1884
1885 qlcnic_reset_rx_buffers_list(adapter);
1886
1887 for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1888 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1889 }
1890
1891 /* Usage: During suspend and firmware recovery module */
1892
1893 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1894 {
1895 rtnl_lock();
1896 if (netif_running(netdev))
1897 __qlcnic_down(adapter, netdev);
1898 rtnl_unlock();
1899
1900 }
1901
1902 int
1903 qlcnic_attach(struct qlcnic_adapter *adapter)
1904 {
1905 struct net_device *netdev = adapter->netdev;
1906 struct pci_dev *pdev = adapter->pdev;
1907 int err;
1908
1909 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1910 return 0;
1911
1912 err = qlcnic_napi_add(adapter, netdev);
1913 if (err)
1914 return err;
1915
1916 err = qlcnic_alloc_sw_resources(adapter);
1917 if (err) {
1918 dev_err(&pdev->dev, "Error in setting sw resources\n");
1919 goto err_out_napi_del;
1920 }
1921
1922 err = qlcnic_alloc_hw_resources(adapter);
1923 if (err) {
1924 dev_err(&pdev->dev, "Error in setting hw resources\n");
1925 goto err_out_free_sw;
1926 }
1927
1928 err = qlcnic_request_irq(adapter);
1929 if (err) {
1930 dev_err(&pdev->dev, "failed to setup interrupt\n");
1931 goto err_out_free_hw;
1932 }
1933
1934 qlcnic_create_sysfs_entries(adapter);
1935
1936 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1937 return 0;
1938
1939 err_out_free_hw:
1940 qlcnic_free_hw_resources(adapter);
1941 err_out_free_sw:
1942 qlcnic_free_sw_resources(adapter);
1943 err_out_napi_del:
1944 qlcnic_napi_del(adapter);
1945 return err;
1946 }
1947
1948 void qlcnic_detach(struct qlcnic_adapter *adapter)
1949 {
1950 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1951 return;
1952
1953 qlcnic_remove_sysfs_entries(adapter);
1954
1955 qlcnic_free_hw_resources(adapter);
1956 qlcnic_release_rx_buffers(adapter);
1957 qlcnic_free_irq(adapter);
1958 qlcnic_napi_del(adapter);
1959 qlcnic_free_sw_resources(adapter);
1960
1961 adapter->is_up = 0;
1962 }
1963
1964 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
1965 {
1966 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1967 struct qlcnic_host_sds_ring *sds_ring;
1968 int drv_tx_rings = adapter->drv_tx_rings;
1969 int ring;
1970
1971 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1972 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1973 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1974 sds_ring = &adapter->recv_ctx->sds_rings[ring];
1975 qlcnic_disable_sds_intr(adapter, sds_ring);
1976 }
1977 }
1978
1979 qlcnic_fw_destroy_ctx(adapter);
1980
1981 qlcnic_detach(adapter);
1982
1983 adapter->ahw->diag_test = 0;
1984 adapter->drv_sds_rings = drv_sds_rings;
1985 adapter->drv_tx_rings = drv_tx_rings;
1986
1987 if (qlcnic_attach(adapter))
1988 goto out;
1989
1990 if (netif_running(netdev))
1991 __qlcnic_up(adapter, netdev);
1992 out:
1993 netif_device_attach(netdev);
1994 }
1995
1996 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1997 {
1998 int err = 0;
1999
2000 adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2001 GFP_KERNEL);
2002 if (!adapter->recv_ctx) {
2003 err = -ENOMEM;
2004 goto err_out;
2005 }
2006
2007 /* clear stats */
2008 memset(&adapter->stats, 0, sizeof(adapter->stats));
2009 err_out:
2010 return err;
2011 }
2012
2013 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2014 {
2015 kfree(adapter->recv_ctx);
2016 adapter->recv_ctx = NULL;
2017
2018 if (adapter->ahw->fw_dump.tmpl_hdr) {
2019 vfree(adapter->ahw->fw_dump.tmpl_hdr);
2020 adapter->ahw->fw_dump.tmpl_hdr = NULL;
2021 }
2022
2023 kfree(adapter->ahw->reset.buff);
2024 adapter->ahw->fw_dump.tmpl_hdr = NULL;
2025 }
2026
2027 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2028 {
2029 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2030 struct qlcnic_host_sds_ring *sds_ring;
2031 struct qlcnic_host_rds_ring *rds_ring;
2032 int ring;
2033 int ret;
2034
2035 netif_device_detach(netdev);
2036
2037 if (netif_running(netdev))
2038 __qlcnic_down(adapter, netdev);
2039
2040 qlcnic_detach(adapter);
2041
2042 adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2043 adapter->ahw->diag_test = test;
2044 adapter->ahw->linkup = 0;
2045
2046 ret = qlcnic_attach(adapter);
2047 if (ret) {
2048 netif_device_attach(netdev);
2049 return ret;
2050 }
2051
2052 ret = qlcnic_fw_create_ctx(adapter);
2053 if (ret) {
2054 qlcnic_detach(adapter);
2055 netif_device_attach(netdev);
2056 return ret;
2057 }
2058
2059 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2060 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2061 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2062 }
2063
2064 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2065 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2066 sds_ring = &adapter->recv_ctx->sds_rings[ring];
2067 qlcnic_enable_sds_intr(adapter, sds_ring);
2068 }
2069 }
2070
2071 if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2072 adapter->ahw->loopback_state = 0;
2073 qlcnic_linkevent_request(adapter, 1);
2074 }
2075
2076 set_bit(__QLCNIC_DEV_UP, &adapter->state);
2077
2078 return 0;
2079 }
2080
2081 /* Reset context in hardware only */
2082 static int
2083 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2084 {
2085 struct net_device *netdev = adapter->netdev;
2086
2087 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2088 return -EBUSY;
2089
2090 netif_device_detach(netdev);
2091
2092 qlcnic_down(adapter, netdev);
2093
2094 qlcnic_up(adapter, netdev);
2095
2096 netif_device_attach(netdev);
2097
2098 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2099 netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2100 return 0;
2101 }
2102
2103 int
2104 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2105 {
2106 int err = 0;
2107 struct net_device *netdev = adapter->netdev;
2108
2109 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2110 return -EBUSY;
2111
2112 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2113
2114 netif_device_detach(netdev);
2115
2116 if (netif_running(netdev))
2117 __qlcnic_down(adapter, netdev);
2118
2119 qlcnic_detach(adapter);
2120
2121 if (netif_running(netdev)) {
2122 err = qlcnic_attach(adapter);
2123 if (!err) {
2124 __qlcnic_up(adapter, netdev);
2125 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2126 }
2127 }
2128
2129 netif_device_attach(netdev);
2130 }
2131
2132 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2133 return err;
2134 }
2135
2136 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2137 {
2138 struct qlcnic_hardware_context *ahw = adapter->ahw;
2139 u16 act_pci_fn = ahw->total_nic_func;
2140 u16 count;
2141
2142 ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2143 if (act_pci_fn <= 2)
2144 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2145 act_pci_fn;
2146 else
2147 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2148 act_pci_fn;
2149 ahw->max_uc_count = count;
2150 }
2151
2152 int
2153 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2154 int pci_using_dac)
2155 {
2156 int err;
2157 struct pci_dev *pdev = adapter->pdev;
2158
2159 adapter->rx_csum = 1;
2160 adapter->ahw->mc_enabled = 0;
2161 qlcnic_set_mac_filter_count(adapter);
2162
2163 netdev->netdev_ops = &qlcnic_netdev_ops;
2164 netdev->watchdog_timeo = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2165
2166 qlcnic_change_mtu(netdev, netdev->mtu);
2167
2168 if (qlcnic_sriov_vf_check(adapter))
2169 SET_ETHTOOL_OPS(netdev, &qlcnic_sriov_vf_ethtool_ops);
2170 else
2171 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
2172
2173 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2174 NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2175 NETIF_F_HW_VLAN_CTAG_RX);
2176 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2177 NETIF_F_IPV6_CSUM);
2178
2179 if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2180 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2181 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2182 }
2183
2184 if (pci_using_dac) {
2185 netdev->features |= NETIF_F_HIGHDMA;
2186 netdev->vlan_features |= NETIF_F_HIGHDMA;
2187 }
2188
2189 if (qlcnic_vlan_tx_check(adapter))
2190 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2191
2192 if (qlcnic_sriov_vf_check(adapter))
2193 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2194
2195 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2196 netdev->features |= NETIF_F_LRO;
2197
2198 netdev->hw_features = netdev->features;
2199 netdev->priv_flags |= IFF_UNICAST_FLT;
2200 netdev->irq = adapter->msix_entries[0].vector;
2201
2202 err = qlcnic_set_real_num_queues(adapter, netdev);
2203 if (err)
2204 return err;
2205
2206 err = register_netdev(netdev);
2207 if (err) {
2208 dev_err(&pdev->dev, "failed to register net device\n");
2209 return err;
2210 }
2211
2212 qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2213
2214 return 0;
2215 }
2216
2217 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2218 {
2219 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2220 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2221 *pci_using_dac = 1;
2222 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2223 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2224 *pci_using_dac = 0;
2225 else {
2226 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2227 return -EIO;
2228 }
2229
2230 return 0;
2231 }
2232
2233 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2234 {
2235 int ring;
2236 struct qlcnic_host_tx_ring *tx_ring;
2237
2238 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2239 tx_ring = &adapter->tx_ring[ring];
2240 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
2241 vfree(tx_ring->cmd_buf_arr);
2242 tx_ring->cmd_buf_arr = NULL;
2243 }
2244 }
2245 if (adapter->tx_ring != NULL)
2246 kfree(adapter->tx_ring);
2247 }
2248
2249 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2250 struct net_device *netdev)
2251 {
2252 int ring, vector, index;
2253 struct qlcnic_host_tx_ring *tx_ring;
2254 struct qlcnic_cmd_buffer *cmd_buf_arr;
2255
2256 tx_ring = kcalloc(adapter->drv_tx_rings,
2257 sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2258 if (tx_ring == NULL)
2259 return -ENOMEM;
2260
2261 adapter->tx_ring = tx_ring;
2262
2263 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2264 tx_ring = &adapter->tx_ring[ring];
2265 tx_ring->num_desc = adapter->num_txd;
2266 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2267 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2268 if (cmd_buf_arr == NULL) {
2269 qlcnic_free_tx_rings(adapter);
2270 return -ENOMEM;
2271 }
2272 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
2273 tx_ring->cmd_buf_arr = cmd_buf_arr;
2274 spin_lock_init(&tx_ring->tx_clean_lock);
2275 }
2276
2277 if (qlcnic_83xx_check(adapter) ||
2278 (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2279 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2280 tx_ring = &adapter->tx_ring[ring];
2281 tx_ring->adapter = adapter;
2282 if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2283 index = adapter->drv_sds_rings + ring;
2284 vector = adapter->msix_entries[index].vector;
2285 tx_ring->irq = vector;
2286 }
2287 }
2288 }
2289
2290 return 0;
2291 }
2292
2293 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2294 {
2295 struct qlcnic_hardware_context *ahw = adapter->ahw;
2296 u32 fw_cmd = 0;
2297
2298 if (qlcnic_82xx_check(adapter))
2299 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2300 else if (qlcnic_83xx_check(adapter))
2301 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2302
2303 if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2304 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2305 }
2306
2307 static int
2308 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2309 {
2310 struct net_device *netdev = NULL;
2311 struct qlcnic_adapter *adapter = NULL;
2312 struct qlcnic_hardware_context *ahw;
2313 int err, pci_using_dac = -1;
2314 char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2315
2316 if (pdev->is_virtfn)
2317 return -ENODEV;
2318
2319 err = pci_enable_device(pdev);
2320 if (err)
2321 return err;
2322
2323 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2324 err = -ENODEV;
2325 goto err_out_disable_pdev;
2326 }
2327
2328 err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2329 if (err)
2330 goto err_out_disable_pdev;
2331
2332 err = pci_request_regions(pdev, qlcnic_driver_name);
2333 if (err)
2334 goto err_out_disable_pdev;
2335
2336 pci_set_master(pdev);
2337 pci_enable_pcie_error_reporting(pdev);
2338
2339 ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2340 if (!ahw) {
2341 err = -ENOMEM;
2342 goto err_out_free_res;
2343 }
2344
2345 switch (ent->device) {
2346 case PCI_DEVICE_ID_QLOGIC_QLE824X:
2347 ahw->hw_ops = &qlcnic_hw_ops;
2348 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2349 break;
2350 case PCI_DEVICE_ID_QLOGIC_QLE834X:
2351 case PCI_DEVICE_ID_QLOGIC_QLE844X:
2352 qlcnic_83xx_register_map(ahw);
2353 break;
2354 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2355 case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2356 qlcnic_sriov_vf_register_map(ahw);
2357 break;
2358 default:
2359 goto err_out_free_hw_res;
2360 }
2361
2362 err = qlcnic_setup_pci_map(pdev, ahw);
2363 if (err)
2364 goto err_out_free_hw_res;
2365
2366 netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2367 QLCNIC_MAX_TX_RINGS);
2368 if (!netdev) {
2369 err = -ENOMEM;
2370 goto err_out_iounmap;
2371 }
2372
2373 SET_NETDEV_DEV(netdev, &pdev->dev);
2374
2375 adapter = netdev_priv(netdev);
2376 adapter->netdev = netdev;
2377 adapter->pdev = pdev;
2378 adapter->ahw = ahw;
2379
2380 adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2381 if (adapter->qlcnic_wq == NULL) {
2382 err = -ENOMEM;
2383 dev_err(&pdev->dev, "Failed to create workqueue\n");
2384 goto err_out_free_netdev;
2385 }
2386
2387 err = qlcnic_alloc_adapter_resources(adapter);
2388 if (err)
2389 goto err_out_free_wq;
2390
2391 adapter->dev_rst_time = jiffies;
2392 ahw->revision_id = pdev->revision;
2393 ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2394 if (qlcnic_mac_learn == FDB_MAC_LEARN)
2395 adapter->fdb_mac_learn = true;
2396 else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2397 adapter->drv_mac_learn = true;
2398
2399 rwlock_init(&adapter->ahw->crb_lock);
2400 mutex_init(&adapter->ahw->mem_lock);
2401
2402 INIT_LIST_HEAD(&adapter->mac_list);
2403
2404 qlcnic_register_dcb(adapter);
2405
2406 if (qlcnic_82xx_check(adapter)) {
2407 qlcnic_check_vf(adapter, ent);
2408 adapter->portnum = adapter->ahw->pci_func;
2409 err = qlcnic_start_firmware(adapter);
2410 if (err) {
2411 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2412 "\t\tIf reboot doesn't help, try flashing the card\n");
2413 goto err_out_maintenance_mode;
2414 }
2415
2416 /* compute and set default and max tx/sds rings */
2417 if (adapter->ahw->msix_supported) {
2418 if (qlcnic_check_multi_tx_capability(adapter) == 1)
2419 qlcnic_set_tx_ring_count(adapter,
2420 QLCNIC_SINGLE_RING);
2421 else
2422 qlcnic_set_tx_ring_count(adapter,
2423 QLCNIC_DEF_TX_RINGS);
2424 qlcnic_set_sds_ring_count(adapter,
2425 QLCNIC_DEF_SDS_RINGS);
2426 } else {
2427 qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2428 qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2429 }
2430
2431 err = qlcnic_setup_idc_param(adapter);
2432 if (err)
2433 goto err_out_free_hw;
2434
2435 adapter->flags |= QLCNIC_NEED_FLR;
2436
2437 } else if (qlcnic_83xx_check(adapter)) {
2438 qlcnic_83xx_check_vf(adapter, ent);
2439 adapter->portnum = adapter->ahw->pci_func;
2440 err = qlcnic_83xx_init(adapter, pci_using_dac);
2441 if (err) {
2442 switch (err) {
2443 case -ENOTRECOVERABLE:
2444 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware. Please reboot\n");
2445 dev_err(&pdev->dev, "If reboot doesn't help, please replace the adapter with new one and return the faulty adapter for repair\n");
2446 goto err_out_free_hw;
2447 case -ENOMEM:
2448 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2449 goto err_out_free_hw;
2450 default:
2451 dev_err(&pdev->dev, "Adapter initialization failed. A reboot may be required to recover from this failure\n");
2452 dev_err(&pdev->dev, "If reboot does not help to recover from this failure, try a flash update of the adapter\n");
2453 goto err_out_maintenance_mode;
2454 }
2455 }
2456
2457 if (qlcnic_sriov_vf_check(adapter))
2458 return 0;
2459 } else {
2460 dev_err(&pdev->dev,
2461 "%s: failed. Please Reboot\n", __func__);
2462 goto err_out_free_hw;
2463 }
2464
2465 qlcnic_dcb_enable(adapter->dcb);
2466
2467 if (qlcnic_read_mac_addr(adapter))
2468 dev_warn(&pdev->dev, "failed to read mac addr\n");
2469
2470 qlcnic_read_phys_port_id(adapter);
2471
2472 if (adapter->portnum == 0) {
2473 qlcnic_get_board_name(adapter, board_name);
2474
2475 pr_info("%s: %s Board Chip rev 0x%x\n",
2476 module_name(THIS_MODULE),
2477 board_name, adapter->ahw->revision_id);
2478 }
2479
2480 if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2481 !!qlcnic_use_msi)
2482 dev_warn(&pdev->dev,
2483 "Device does not support MSI interrupts\n");
2484
2485 if (qlcnic_82xx_check(adapter)) {
2486 err = qlcnic_setup_intr(adapter);
2487 if (err) {
2488 dev_err(&pdev->dev, "Failed to setup interrupt\n");
2489 goto err_out_disable_msi;
2490 }
2491 }
2492
2493 err = qlcnic_get_act_pci_func(adapter);
2494 if (err)
2495 goto err_out_disable_mbx_intr;
2496
2497 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2498 if (err)
2499 goto err_out_disable_mbx_intr;
2500
2501 if (adapter->portnum == 0)
2502 qlcnic_set_drv_version(adapter);
2503
2504 pci_set_drvdata(pdev, adapter);
2505
2506 if (qlcnic_82xx_check(adapter))
2507 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2508 FW_POLL_DELAY);
2509
2510 switch (adapter->ahw->port_type) {
2511 case QLCNIC_GBE:
2512 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2513 adapter->netdev->name);
2514 break;
2515 case QLCNIC_XGBE:
2516 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2517 adapter->netdev->name);
2518 break;
2519 }
2520
2521 if (adapter->drv_mac_learn)
2522 qlcnic_alloc_lb_filters_mem(adapter);
2523
2524 qlcnic_add_sysfs(adapter);
2525
2526 return 0;
2527
2528 err_out_disable_mbx_intr:
2529 if (qlcnic_83xx_check(adapter))
2530 qlcnic_83xx_free_mbx_intr(adapter);
2531
2532 err_out_disable_msi:
2533 qlcnic_teardown_intr(adapter);
2534 qlcnic_cancel_idc_work(adapter);
2535 qlcnic_clr_all_drv_state(adapter, 0);
2536
2537 err_out_free_hw:
2538 qlcnic_free_adapter_resources(adapter);
2539
2540 err_out_free_wq:
2541 destroy_workqueue(adapter->qlcnic_wq);
2542
2543 err_out_free_netdev:
2544 free_netdev(netdev);
2545
2546 err_out_iounmap:
2547 qlcnic_cleanup_pci_map(ahw);
2548
2549 err_out_free_hw_res:
2550 kfree(ahw);
2551
2552 err_out_free_res:
2553 pci_release_regions(pdev);
2554
2555 err_out_disable_pdev:
2556 pci_disable_device(pdev);
2557 return err;
2558
2559 err_out_maintenance_mode:
2560 set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2561 netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2562 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_failed_ops);
2563 ahw->port_type = QLCNIC_XGBE;
2564
2565 if (qlcnic_83xx_check(adapter))
2566 adapter->tgt_status_reg = NULL;
2567 else
2568 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2569
2570 err = register_netdev(netdev);
2571
2572 if (err) {
2573 dev_err(&pdev->dev, "Failed to register net device\n");
2574 qlcnic_clr_all_drv_state(adapter, 0);
2575 goto err_out_free_hw;
2576 }
2577
2578 pci_set_drvdata(pdev, adapter);
2579 qlcnic_add_sysfs(adapter);
2580
2581 return 0;
2582 }
2583
2584 static void qlcnic_remove(struct pci_dev *pdev)
2585 {
2586 struct qlcnic_adapter *adapter;
2587 struct net_device *netdev;
2588 struct qlcnic_hardware_context *ahw;
2589
2590 adapter = pci_get_drvdata(pdev);
2591 if (adapter == NULL)
2592 return;
2593
2594 netdev = adapter->netdev;
2595 qlcnic_sriov_pf_disable(adapter);
2596
2597 qlcnic_cancel_idc_work(adapter);
2598 ahw = adapter->ahw;
2599
2600 unregister_netdev(netdev);
2601 qlcnic_sriov_cleanup(adapter);
2602
2603 if (qlcnic_83xx_check(adapter)) {
2604 qlcnic_83xx_initialize_nic(adapter, 0);
2605 cancel_delayed_work_sync(&adapter->idc_aen_work);
2606 qlcnic_83xx_free_mbx_intr(adapter);
2607 qlcnic_83xx_detach_mailbox_work(adapter);
2608 qlcnic_83xx_free_mailbox(ahw->mailbox);
2609 kfree(ahw->fw_info);
2610 }
2611
2612 qlcnic_dcb_free(adapter->dcb);
2613
2614 qlcnic_detach(adapter);
2615
2616 if (adapter->npars != NULL)
2617 kfree(adapter->npars);
2618 if (adapter->eswitch != NULL)
2619 kfree(adapter->eswitch);
2620
2621 if (qlcnic_82xx_check(adapter))
2622 qlcnic_clr_all_drv_state(adapter, 0);
2623
2624 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2625
2626 qlcnic_free_lb_filters_mem(adapter);
2627
2628 qlcnic_teardown_intr(adapter);
2629
2630 qlcnic_remove_sysfs(adapter);
2631
2632 qlcnic_cleanup_pci_map(adapter->ahw);
2633
2634 qlcnic_release_firmware(adapter);
2635
2636 pci_disable_pcie_error_reporting(pdev);
2637 pci_release_regions(pdev);
2638 pci_disable_device(pdev);
2639
2640 if (adapter->qlcnic_wq) {
2641 destroy_workqueue(adapter->qlcnic_wq);
2642 adapter->qlcnic_wq = NULL;
2643 }
2644
2645 qlcnic_free_adapter_resources(adapter);
2646 kfree(ahw);
2647 free_netdev(netdev);
2648 }
2649
2650 static void qlcnic_shutdown(struct pci_dev *pdev)
2651 {
2652 if (__qlcnic_shutdown(pdev))
2653 return;
2654
2655 pci_disable_device(pdev);
2656 }
2657
2658 #ifdef CONFIG_PM
2659 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2660 {
2661 int retval;
2662
2663 retval = __qlcnic_shutdown(pdev);
2664 if (retval)
2665 return retval;
2666
2667 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2668 return 0;
2669 }
2670
2671 static int qlcnic_resume(struct pci_dev *pdev)
2672 {
2673 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2674 int err;
2675
2676 err = pci_enable_device(pdev);
2677 if (err)
2678 return err;
2679
2680 pci_set_power_state(pdev, PCI_D0);
2681 pci_set_master(pdev);
2682 pci_restore_state(pdev);
2683
2684 return __qlcnic_resume(adapter);
2685 }
2686 #endif
2687
2688 static int qlcnic_open(struct net_device *netdev)
2689 {
2690 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2691 int err;
2692
2693 if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2694 netdev_err(netdev, "%s: Device is in non-operational state\n",
2695 __func__);
2696
2697 return -EIO;
2698 }
2699
2700 netif_carrier_off(netdev);
2701
2702 err = qlcnic_attach(adapter);
2703 if (err)
2704 return err;
2705
2706 err = __qlcnic_up(adapter, netdev);
2707 if (err)
2708 qlcnic_detach(adapter);
2709
2710 return err;
2711 }
2712
2713 /*
2714 * qlcnic_close - Disables a network interface entry point
2715 */
2716 static int qlcnic_close(struct net_device *netdev)
2717 {
2718 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2719
2720 __qlcnic_down(adapter, netdev);
2721
2722 return 0;
2723 }
2724
2725 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2726 {
2727 void *head;
2728 int i;
2729 struct net_device *netdev = adapter->netdev;
2730 u32 filter_size = 0;
2731 u16 act_pci_func = 0;
2732
2733 if (adapter->fhash.fmax && adapter->fhash.fhead)
2734 return;
2735
2736 act_pci_func = adapter->ahw->total_nic_func;
2737 spin_lock_init(&adapter->mac_learn_lock);
2738 spin_lock_init(&adapter->rx_mac_learn_lock);
2739
2740 if (qlcnic_82xx_check(adapter)) {
2741 filter_size = QLCNIC_LB_MAX_FILTERS;
2742 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2743 } else {
2744 filter_size = QLC_83XX_LB_MAX_FILTERS;
2745 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2746 }
2747
2748 head = kcalloc(adapter->fhash.fbucket_size,
2749 sizeof(struct hlist_head), GFP_ATOMIC);
2750
2751 if (!head)
2752 return;
2753
2754 adapter->fhash.fmax = (filter_size / act_pci_func);
2755 adapter->fhash.fhead = head;
2756
2757 netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2758 act_pci_func, adapter->fhash.fmax);
2759
2760 for (i = 0; i < adapter->fhash.fbucket_size; i++)
2761 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2762
2763 adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2764
2765 head = kcalloc(adapter->rx_fhash.fbucket_size,
2766 sizeof(struct hlist_head), GFP_ATOMIC);
2767
2768 if (!head)
2769 return;
2770
2771 adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2772 adapter->rx_fhash.fhead = head;
2773
2774 for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2775 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2776 }
2777
2778 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2779 {
2780 if (adapter->fhash.fmax && adapter->fhash.fhead)
2781 kfree(adapter->fhash.fhead);
2782
2783 adapter->fhash.fhead = NULL;
2784 adapter->fhash.fmax = 0;
2785
2786 if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2787 kfree(adapter->rx_fhash.fhead);
2788
2789 adapter->rx_fhash.fmax = 0;
2790 adapter->rx_fhash.fhead = NULL;
2791 }
2792
2793 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2794 {
2795 struct net_device *netdev = adapter->netdev;
2796 u32 temp_state, temp_val, temp = 0;
2797 int rv = 0;
2798
2799 if (qlcnic_83xx_check(adapter))
2800 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2801
2802 if (qlcnic_82xx_check(adapter))
2803 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2804
2805 temp_state = qlcnic_get_temp_state(temp);
2806 temp_val = qlcnic_get_temp_val(temp);
2807
2808 if (temp_state == QLCNIC_TEMP_PANIC) {
2809 dev_err(&netdev->dev,
2810 "Device temperature %d degrees C exceeds"
2811 " maximum allowed. Hardware has been shut down.\n",
2812 temp_val);
2813 rv = 1;
2814 } else if (temp_state == QLCNIC_TEMP_WARN) {
2815 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2816 dev_err(&netdev->dev,
2817 "Device temperature %d degrees C "
2818 "exceeds operating range."
2819 " Immediate action needed.\n",
2820 temp_val);
2821 }
2822 } else {
2823 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2824 dev_info(&netdev->dev,
2825 "Device temperature is now %d degrees C"
2826 " in normal range.\n", temp_val);
2827 }
2828 }
2829 adapter->ahw->temp = temp_state;
2830 return rv;
2831 }
2832
2833 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2834 {
2835 int i;
2836 struct cmd_desc_type0 *tx_desc_info;
2837
2838 for (i = 0; i < tx_ring->num_desc; i++) {
2839 tx_desc_info = &tx_ring->desc_head[i];
2840 pr_info("TX Desc: %d\n", i);
2841 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
2842 &tx_ring->desc_head[i],
2843 sizeof(struct cmd_desc_type0), true);
2844 }
2845 }
2846
2847 static void qlcnic_dump_tx_rings(struct qlcnic_adapter *adapter)
2848 {
2849 struct net_device *netdev = adapter->netdev;
2850 struct qlcnic_host_tx_ring *tx_ring;
2851 int ring;
2852
2853 if (!netdev || !netif_running(netdev))
2854 return;
2855
2856 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2857 tx_ring = &adapter->tx_ring[ring];
2858 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
2859 ring, tx_ring->ctx_id);
2860 netdev_info(netdev,
2861 "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
2862 tx_ring->tx_stats.xmit_finished,
2863 tx_ring->tx_stats.xmit_called,
2864 tx_ring->tx_stats.xmit_on,
2865 tx_ring->tx_stats.xmit_off);
2866 netdev_info(netdev,
2867 "crb_intr_mask=%d, hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
2868 readl(tx_ring->crb_intr_mask),
2869 readl(tx_ring->crb_cmd_producer),
2870 tx_ring->producer, tx_ring->sw_consumer,
2871 le32_to_cpu(*(tx_ring->hw_consumer)));
2872
2873 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
2874 tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
2875
2876 if (netif_msg_tx_done(adapter->ahw))
2877 dump_tx_ring_desc(tx_ring);
2878 }
2879 }
2880
2881 static void qlcnic_tx_timeout(struct net_device *netdev)
2882 {
2883 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2884
2885 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2886 return;
2887
2888 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) {
2889 netdev_info(netdev, "Tx timeout, reset the adapter.\n");
2890 if (qlcnic_82xx_check(adapter))
2891 adapter->need_fw_reset = 1;
2892 else if (qlcnic_83xx_check(adapter))
2893 qlcnic_83xx_idc_request_reset(adapter,
2894 QLCNIC_FORCE_FW_DUMP_KEY);
2895 } else {
2896 netdev_info(netdev, "Tx timeout, reset adapter context.\n");
2897 qlcnic_dump_tx_rings(adapter);
2898 adapter->ahw->reset_context = 1;
2899 }
2900 }
2901
2902 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2903 {
2904 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2905 struct net_device_stats *stats = &netdev->stats;
2906
2907 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2908 qlcnic_update_stats(adapter);
2909
2910 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2911 stats->tx_packets = adapter->stats.xmitfinished;
2912 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2913 stats->tx_bytes = adapter->stats.txbytes;
2914 stats->rx_dropped = adapter->stats.rxdropped;
2915 stats->tx_dropped = adapter->stats.txdropped;
2916
2917 return stats;
2918 }
2919
2920 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2921 {
2922 u32 status;
2923
2924 status = readl(adapter->isr_int_vec);
2925
2926 if (!(status & adapter->ahw->int_vec_bit))
2927 return IRQ_NONE;
2928
2929 /* check interrupt state machine, to be sure */
2930 status = readl(adapter->crb_int_state_reg);
2931 if (!ISR_LEGACY_INT_TRIGGERED(status))
2932 return IRQ_NONE;
2933
2934 writel(0xffffffff, adapter->tgt_status_reg);
2935 /* read twice to ensure write is flushed */
2936 readl(adapter->isr_int_vec);
2937 readl(adapter->isr_int_vec);
2938
2939 return IRQ_HANDLED;
2940 }
2941
2942 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2943 {
2944 struct qlcnic_host_sds_ring *sds_ring = data;
2945 struct qlcnic_adapter *adapter = sds_ring->adapter;
2946
2947 if (adapter->flags & QLCNIC_MSIX_ENABLED)
2948 goto done;
2949 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2950 writel(0xffffffff, adapter->tgt_status_reg);
2951 goto done;
2952 }
2953
2954 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2955 return IRQ_NONE;
2956
2957 done:
2958 adapter->ahw->diag_cnt++;
2959 qlcnic_enable_sds_intr(adapter, sds_ring);
2960 return IRQ_HANDLED;
2961 }
2962
2963 static irqreturn_t qlcnic_intr(int irq, void *data)
2964 {
2965 struct qlcnic_host_sds_ring *sds_ring = data;
2966 struct qlcnic_adapter *adapter = sds_ring->adapter;
2967
2968 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2969 return IRQ_NONE;
2970
2971 napi_schedule(&sds_ring->napi);
2972
2973 return IRQ_HANDLED;
2974 }
2975
2976 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2977 {
2978 struct qlcnic_host_sds_ring *sds_ring = data;
2979 struct qlcnic_adapter *adapter = sds_ring->adapter;
2980
2981 /* clear interrupt */
2982 writel(0xffffffff, adapter->tgt_status_reg);
2983
2984 napi_schedule(&sds_ring->napi);
2985 return IRQ_HANDLED;
2986 }
2987
2988 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2989 {
2990 struct qlcnic_host_sds_ring *sds_ring = data;
2991
2992 napi_schedule(&sds_ring->napi);
2993 return IRQ_HANDLED;
2994 }
2995
2996 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2997 {
2998 struct qlcnic_host_tx_ring *tx_ring = data;
2999
3000 napi_schedule(&tx_ring->napi);
3001 return IRQ_HANDLED;
3002 }
3003
3004 #ifdef CONFIG_NET_POLL_CONTROLLER
3005 static void qlcnic_poll_controller(struct net_device *netdev)
3006 {
3007 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3008 struct qlcnic_host_sds_ring *sds_ring;
3009 struct qlcnic_recv_context *recv_ctx;
3010 struct qlcnic_host_tx_ring *tx_ring;
3011 int ring;
3012
3013 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3014 return;
3015
3016 recv_ctx = adapter->recv_ctx;
3017
3018 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3019 sds_ring = &recv_ctx->sds_rings[ring];
3020 qlcnic_disable_sds_intr(adapter, sds_ring);
3021 napi_schedule(&sds_ring->napi);
3022 }
3023
3024 if (adapter->flags & QLCNIC_MSIX_ENABLED) {
3025 /* Only Multi-Tx queue capable devices need to
3026 * schedule NAPI for TX rings
3027 */
3028 if ((qlcnic_83xx_check(adapter) &&
3029 (adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
3030 (qlcnic_82xx_check(adapter) &&
3031 !qlcnic_check_multi_tx(adapter)))
3032 return;
3033
3034 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3035 tx_ring = &adapter->tx_ring[ring];
3036 qlcnic_disable_tx_intr(adapter, tx_ring);
3037 napi_schedule(&tx_ring->napi);
3038 }
3039 }
3040 }
3041 #endif
3042
3043 static void
3044 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3045 {
3046 u32 val;
3047
3048 val = adapter->portnum & 0xf;
3049 val |= encoding << 7;
3050 val |= (jiffies - adapter->dev_rst_time) << 8;
3051
3052 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3053 adapter->dev_rst_time = jiffies;
3054 }
3055
3056 static int
3057 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3058 {
3059 u32 val;
3060
3061 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3062 state != QLCNIC_DEV_NEED_QUISCENT);
3063
3064 if (qlcnic_api_lock(adapter))
3065 return -EIO;
3066
3067 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3068
3069 if (state == QLCNIC_DEV_NEED_RESET)
3070 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3071 else if (state == QLCNIC_DEV_NEED_QUISCENT)
3072 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3073
3074 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3075
3076 qlcnic_api_unlock(adapter);
3077
3078 return 0;
3079 }
3080
3081 static int
3082 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3083 {
3084 u32 val;
3085
3086 if (qlcnic_api_lock(adapter))
3087 return -EBUSY;
3088
3089 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3090 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3091 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3092
3093 qlcnic_api_unlock(adapter);
3094
3095 return 0;
3096 }
3097
3098 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3099 {
3100 u32 val;
3101
3102 if (qlcnic_api_lock(adapter))
3103 goto err;
3104
3105 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3106 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3107 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3108
3109 if (failed) {
3110 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3111 QLCNIC_DEV_FAILED);
3112 dev_info(&adapter->pdev->dev,
3113 "Device state set to Failed. Please Reboot\n");
3114 } else if (!(val & 0x11111111))
3115 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3116 QLCNIC_DEV_COLD);
3117
3118 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3119 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3120 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3121
3122 qlcnic_api_unlock(adapter);
3123 err:
3124 adapter->fw_fail_cnt = 0;
3125 adapter->flags &= ~QLCNIC_FW_HANG;
3126 clear_bit(__QLCNIC_START_FW, &adapter->state);
3127 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3128 }
3129
3130 /* Grab api lock, before checking state */
3131 static int
3132 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3133 {
3134 int act, state, active_mask;
3135 struct qlcnic_hardware_context *ahw = adapter->ahw;
3136
3137 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3138 act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3139
3140 if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3141 active_mask = (~(1 << (ahw->pci_func * 4)));
3142 act = act & active_mask;
3143 }
3144
3145 if (((state & 0x11111111) == (act & 0x11111111)) ||
3146 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3147 return 0;
3148 else
3149 return 1;
3150 }
3151
3152 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3153 {
3154 u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3155
3156 if (val != QLCNIC_DRV_IDC_VER) {
3157 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3158 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3159 }
3160
3161 return 0;
3162 }
3163
3164 static int
3165 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3166 {
3167 u32 val, prev_state;
3168 u8 dev_init_timeo = adapter->dev_init_timeo;
3169 u8 portnum = adapter->portnum;
3170 u8 ret;
3171
3172 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3173 return 1;
3174
3175 if (qlcnic_api_lock(adapter))
3176 return -1;
3177
3178 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3179 if (!(val & (1 << (portnum * 4)))) {
3180 QLC_DEV_SET_REF_CNT(val, portnum);
3181 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3182 }
3183
3184 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3185 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3186
3187 switch (prev_state) {
3188 case QLCNIC_DEV_COLD:
3189 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3190 QLCNIC_DEV_INITIALIZING);
3191 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3192 QLCNIC_DRV_IDC_VER);
3193 qlcnic_idc_debug_info(adapter, 0);
3194 qlcnic_api_unlock(adapter);
3195 return 1;
3196
3197 case QLCNIC_DEV_READY:
3198 ret = qlcnic_check_idc_ver(adapter);
3199 qlcnic_api_unlock(adapter);
3200 return ret;
3201
3202 case QLCNIC_DEV_NEED_RESET:
3203 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3204 QLC_DEV_SET_RST_RDY(val, portnum);
3205 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3206 break;
3207
3208 case QLCNIC_DEV_NEED_QUISCENT:
3209 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3210 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3211 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3212 break;
3213
3214 case QLCNIC_DEV_FAILED:
3215 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3216 qlcnic_api_unlock(adapter);
3217 return -1;
3218
3219 case QLCNIC_DEV_INITIALIZING:
3220 case QLCNIC_DEV_QUISCENT:
3221 break;
3222 }
3223
3224 qlcnic_api_unlock(adapter);
3225
3226 do {
3227 msleep(1000);
3228 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3229
3230 if (prev_state == QLCNIC_DEV_QUISCENT)
3231 continue;
3232 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3233
3234 if (!dev_init_timeo) {
3235 dev_err(&adapter->pdev->dev,
3236 "Waiting for device to initialize timeout\n");
3237 return -1;
3238 }
3239
3240 if (qlcnic_api_lock(adapter))
3241 return -1;
3242
3243 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3244 QLC_DEV_CLR_RST_QSCNT(val, portnum);
3245 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3246
3247 ret = qlcnic_check_idc_ver(adapter);
3248 qlcnic_api_unlock(adapter);
3249
3250 return ret;
3251 }
3252
3253 static void
3254 qlcnic_fwinit_work(struct work_struct *work)
3255 {
3256 struct qlcnic_adapter *adapter = container_of(work,
3257 struct qlcnic_adapter, fw_work.work);
3258 u32 dev_state = 0xf;
3259 u32 val;
3260
3261 if (qlcnic_api_lock(adapter))
3262 goto err_ret;
3263
3264 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3265 if (dev_state == QLCNIC_DEV_QUISCENT ||
3266 dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3267 qlcnic_api_unlock(adapter);
3268 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3269 FW_POLL_DELAY * 2);
3270 return;
3271 }
3272
3273 if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3274 qlcnic_api_unlock(adapter);
3275 goto wait_npar;
3276 }
3277
3278 if (dev_state == QLCNIC_DEV_INITIALIZING ||
3279 dev_state == QLCNIC_DEV_READY) {
3280 dev_info(&adapter->pdev->dev, "Detected state change from "
3281 "DEV_NEED_RESET, skipping ack check\n");
3282 goto skip_ack_check;
3283 }
3284
3285 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3286 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3287 adapter->reset_ack_timeo);
3288 goto skip_ack_check;
3289 }
3290
3291 if (!qlcnic_check_drv_state(adapter)) {
3292 skip_ack_check:
3293 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3294
3295 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3296 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3297 QLCNIC_DEV_INITIALIZING);
3298 set_bit(__QLCNIC_START_FW, &adapter->state);
3299 QLCDB(adapter, DRV, "Restarting fw\n");
3300 qlcnic_idc_debug_info(adapter, 0);
3301 val = QLC_SHARED_REG_RD32(adapter,
3302 QLCNIC_CRB_DRV_STATE);
3303 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3304 QLC_SHARED_REG_WR32(adapter,
3305 QLCNIC_CRB_DRV_STATE, val);
3306 }
3307
3308 qlcnic_api_unlock(adapter);
3309
3310 rtnl_lock();
3311 if (qlcnic_check_fw_dump_state(adapter) &&
3312 (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3313 QLCDB(adapter, DRV, "Take FW dump\n");
3314 qlcnic_dump_fw(adapter);
3315 adapter->flags |= QLCNIC_FW_HANG;
3316 }
3317 rtnl_unlock();
3318
3319 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3320 if (!adapter->nic_ops->start_firmware(adapter)) {
3321 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3322 adapter->fw_wait_cnt = 0;
3323 return;
3324 }
3325 goto err_ret;
3326 }
3327
3328 qlcnic_api_unlock(adapter);
3329
3330 wait_npar:
3331 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3332 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3333
3334 switch (dev_state) {
3335 case QLCNIC_DEV_READY:
3336 if (!qlcnic_start_firmware(adapter)) {
3337 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3338 adapter->fw_wait_cnt = 0;
3339 return;
3340 }
3341 case QLCNIC_DEV_FAILED:
3342 break;
3343 default:
3344 qlcnic_schedule_work(adapter,
3345 qlcnic_fwinit_work, FW_POLL_DELAY);
3346 return;
3347 }
3348
3349 err_ret:
3350 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3351 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3352 netif_device_attach(adapter->netdev);
3353 qlcnic_clr_all_drv_state(adapter, 0);
3354 }
3355
3356 static void
3357 qlcnic_detach_work(struct work_struct *work)
3358 {
3359 struct qlcnic_adapter *adapter = container_of(work,
3360 struct qlcnic_adapter, fw_work.work);
3361 struct net_device *netdev = adapter->netdev;
3362 u32 status;
3363
3364 netif_device_detach(netdev);
3365
3366 /* Dont grab rtnl lock during Quiscent mode */
3367 if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3368 if (netif_running(netdev))
3369 __qlcnic_down(adapter, netdev);
3370 } else
3371 qlcnic_down(adapter, netdev);
3372
3373 status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3374
3375 if (status & QLCNIC_RCODE_FATAL_ERROR) {
3376 dev_err(&adapter->pdev->dev,
3377 "Detaching the device: peg halt status1=0x%x\n",
3378 status);
3379
3380 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3381 dev_err(&adapter->pdev->dev,
3382 "On board active cooling fan failed. "
3383 "Device has been halted.\n");
3384 dev_err(&adapter->pdev->dev,
3385 "Replace the adapter.\n");
3386 }
3387
3388 goto err_ret;
3389 }
3390
3391 if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3392 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3393 adapter->ahw->temp);
3394 goto err_ret;
3395 }
3396
3397 /* Dont ack if this instance is the reset owner */
3398 if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3399 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3400 dev_err(&adapter->pdev->dev,
3401 "Failed to set driver state,"
3402 "detaching the device.\n");
3403 goto err_ret;
3404 }
3405 }
3406
3407 adapter->fw_wait_cnt = 0;
3408
3409 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3410
3411 return;
3412
3413 err_ret:
3414 netif_device_attach(netdev);
3415 qlcnic_clr_all_drv_state(adapter, 1);
3416 }
3417
3418 /*Transit NPAR state to NON Operational */
3419 static void
3420 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3421 {
3422 u32 state;
3423
3424 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3425 if (state == QLCNIC_DEV_NPAR_NON_OPER)
3426 return;
3427
3428 if (qlcnic_api_lock(adapter))
3429 return;
3430 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3431 QLCNIC_DEV_NPAR_NON_OPER);
3432 qlcnic_api_unlock(adapter);
3433 }
3434
3435 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3436 u32 key)
3437 {
3438 u32 state, xg_val = 0, gb_val = 0;
3439
3440 qlcnic_xg_set_xg0_mask(xg_val);
3441 qlcnic_xg_set_xg1_mask(xg_val);
3442 QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3443 qlcnic_gb_set_gb0_mask(gb_val);
3444 qlcnic_gb_set_gb1_mask(gb_val);
3445 qlcnic_gb_set_gb2_mask(gb_val);
3446 qlcnic_gb_set_gb3_mask(gb_val);
3447 QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3448 dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3449 " on all ports\n");
3450 adapter->need_fw_reset = 1;
3451
3452 if (qlcnic_api_lock(adapter))
3453 return;
3454
3455 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3456
3457 if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3458 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3459 __func__);
3460 qlcnic_api_unlock(adapter);
3461
3462 return;
3463 }
3464
3465 if (state == QLCNIC_DEV_READY) {
3466 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3467 QLCNIC_DEV_NEED_RESET);
3468 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3469 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3470 qlcnic_idc_debug_info(adapter, 0);
3471 }
3472
3473 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3474 QLCNIC_DEV_NPAR_NON_OPER);
3475 qlcnic_api_unlock(adapter);
3476 }
3477
3478 /* Transit to NPAR READY state from NPAR NOT READY state */
3479 static void
3480 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3481 {
3482 if (qlcnic_api_lock(adapter))
3483 return;
3484
3485 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3486 QLCNIC_DEV_NPAR_OPER);
3487 QLCDB(adapter, DRV, "NPAR operational state set\n");
3488
3489 qlcnic_api_unlock(adapter);
3490 }
3491
3492 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3493 work_func_t func, int delay)
3494 {
3495 if (test_bit(__QLCNIC_AER, &adapter->state))
3496 return;
3497
3498 INIT_DELAYED_WORK(&adapter->fw_work, func);
3499 queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3500 round_jiffies_relative(delay));
3501 }
3502
3503 static void
3504 qlcnic_attach_work(struct work_struct *work)
3505 {
3506 struct qlcnic_adapter *adapter = container_of(work,
3507 struct qlcnic_adapter, fw_work.work);
3508 struct net_device *netdev = adapter->netdev;
3509 u32 npar_state;
3510
3511 if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3512 npar_state = QLC_SHARED_REG_RD32(adapter,
3513 QLCNIC_CRB_DEV_NPAR_STATE);
3514 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3515 qlcnic_clr_all_drv_state(adapter, 0);
3516 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3517 qlcnic_schedule_work(adapter, qlcnic_attach_work,
3518 FW_POLL_DELAY);
3519 else
3520 goto attach;
3521 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3522 return;
3523 }
3524 attach:
3525 qlcnic_dcb_get_info(adapter->dcb);
3526
3527 if (netif_running(netdev)) {
3528 if (qlcnic_up(adapter, netdev))
3529 goto done;
3530
3531 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3532 }
3533
3534 done:
3535 netif_device_attach(netdev);
3536 adapter->fw_fail_cnt = 0;
3537 adapter->flags &= ~QLCNIC_FW_HANG;
3538 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3539 if (adapter->portnum == 0)
3540 qlcnic_set_drv_version(adapter);
3541
3542 if (!qlcnic_clr_drv_state(adapter))
3543 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3544 FW_POLL_DELAY);
3545 }
3546
3547 static int
3548 qlcnic_check_health(struct qlcnic_adapter *adapter)
3549 {
3550 struct qlcnic_hardware_context *ahw = adapter->ahw;
3551 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3552 u32 state = 0, heartbeat;
3553 u32 peg_status;
3554 int err = 0;
3555
3556 if (qlcnic_check_temp(adapter))
3557 goto detach;
3558
3559 if (adapter->need_fw_reset)
3560 qlcnic_dev_request_reset(adapter, 0);
3561
3562 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3563 if (state == QLCNIC_DEV_NEED_RESET) {
3564 qlcnic_set_npar_non_operational(adapter);
3565 adapter->need_fw_reset = 1;
3566 } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3567 goto detach;
3568
3569 heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3570 if (heartbeat != adapter->heartbeat) {
3571 adapter->heartbeat = heartbeat;
3572 adapter->fw_fail_cnt = 0;
3573 if (adapter->need_fw_reset)
3574 goto detach;
3575
3576 if (ahw->reset_context && qlcnic_auto_fw_reset)
3577 qlcnic_reset_hw_context(adapter);
3578
3579 return 0;
3580 }
3581
3582 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3583 return 0;
3584
3585 adapter->flags |= QLCNIC_FW_HANG;
3586
3587 qlcnic_dev_request_reset(adapter, 0);
3588
3589 if (qlcnic_auto_fw_reset)
3590 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3591
3592 dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3593 peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3594 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3595 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3596 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3597 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3598 "PEG_NET_4_PC: 0x%x\n",
3599 peg_status,
3600 QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3601 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3602 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3603 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3604 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3605 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3606 if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3607 dev_err(&adapter->pdev->dev,
3608 "Firmware aborted with error code 0x00006700. "
3609 "Device is being reset.\n");
3610 detach:
3611 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3612 QLCNIC_DEV_NEED_RESET;
3613
3614 if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3615 &adapter->state)) {
3616
3617 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3618 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3619 } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3620 adapter->flags & QLCNIC_FW_RESET_OWNER) {
3621 qlcnic_dump_fw(adapter);
3622 }
3623
3624 return 1;
3625 }
3626
3627 void qlcnic_fw_poll_work(struct work_struct *work)
3628 {
3629 struct qlcnic_adapter *adapter = container_of(work,
3630 struct qlcnic_adapter, fw_work.work);
3631
3632 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3633 goto reschedule;
3634
3635
3636 if (qlcnic_check_health(adapter))
3637 return;
3638
3639 if (adapter->fhash.fnum)
3640 qlcnic_prune_lb_filters(adapter);
3641
3642 reschedule:
3643 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3644 }
3645
3646 static int qlcnic_is_first_func(struct pci_dev *pdev)
3647 {
3648 struct pci_dev *oth_pdev;
3649 int val = pdev->devfn;
3650
3651 while (val-- > 0) {
3652 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3653 (pdev->bus), pdev->bus->number,
3654 PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3655 if (!oth_pdev)
3656 continue;
3657
3658 if (oth_pdev->current_state != PCI_D3cold) {
3659 pci_dev_put(oth_pdev);
3660 return 0;
3661 }
3662 pci_dev_put(oth_pdev);
3663 }
3664 return 1;
3665 }
3666
3667 static int qlcnic_attach_func(struct pci_dev *pdev)
3668 {
3669 int err, first_func;
3670 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3671 struct net_device *netdev = adapter->netdev;
3672
3673 pdev->error_state = pci_channel_io_normal;
3674
3675 err = pci_enable_device(pdev);
3676 if (err)
3677 return err;
3678
3679 pci_set_master(pdev);
3680 pci_restore_state(pdev);
3681
3682 first_func = qlcnic_is_first_func(pdev);
3683
3684 if (qlcnic_api_lock(adapter))
3685 return -EINVAL;
3686
3687 if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3688 adapter->need_fw_reset = 1;
3689 set_bit(__QLCNIC_START_FW, &adapter->state);
3690 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3691 QLCNIC_DEV_INITIALIZING);
3692 QLCDB(adapter, DRV, "Restarting fw\n");
3693 }
3694 qlcnic_api_unlock(adapter);
3695
3696 err = qlcnic_start_firmware(adapter);
3697 if (err)
3698 return err;
3699
3700 qlcnic_clr_drv_state(adapter);
3701 kfree(adapter->msix_entries);
3702 adapter->msix_entries = NULL;
3703 err = qlcnic_setup_intr(adapter);
3704
3705 if (err) {
3706 kfree(adapter->msix_entries);
3707 netdev_err(netdev, "failed to setup interrupt\n");
3708 return err;
3709 }
3710
3711 if (netif_running(netdev)) {
3712 err = qlcnic_attach(adapter);
3713 if (err) {
3714 qlcnic_clr_all_drv_state(adapter, 1);
3715 clear_bit(__QLCNIC_AER, &adapter->state);
3716 netif_device_attach(netdev);
3717 return err;
3718 }
3719
3720 err = qlcnic_up(adapter, netdev);
3721 if (err)
3722 goto done;
3723
3724 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3725 }
3726 done:
3727 netif_device_attach(netdev);
3728 return err;
3729 }
3730
3731 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3732 pci_channel_state_t state)
3733 {
3734 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3735 struct net_device *netdev = adapter->netdev;
3736
3737 if (state == pci_channel_io_perm_failure)
3738 return PCI_ERS_RESULT_DISCONNECT;
3739
3740 if (state == pci_channel_io_normal)
3741 return PCI_ERS_RESULT_RECOVERED;
3742
3743 set_bit(__QLCNIC_AER, &adapter->state);
3744 netif_device_detach(netdev);
3745
3746 cancel_delayed_work_sync(&adapter->fw_work);
3747
3748 if (netif_running(netdev))
3749 qlcnic_down(adapter, netdev);
3750
3751 qlcnic_detach(adapter);
3752 qlcnic_teardown_intr(adapter);
3753
3754 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3755
3756 pci_save_state(pdev);
3757 pci_disable_device(pdev);
3758
3759 return PCI_ERS_RESULT_NEED_RESET;
3760 }
3761
3762 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3763 {
3764 return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3765 PCI_ERS_RESULT_RECOVERED;
3766 }
3767
3768 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3769 {
3770 u32 state;
3771 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3772
3773 pci_cleanup_aer_uncorrect_error_status(pdev);
3774 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3775 if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3776 &adapter->state))
3777 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3778 FW_POLL_DELAY);
3779 }
3780
3781 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3782 pci_channel_state_t state)
3783 {
3784 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3785 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3786
3787 if (hw_ops->io_error_detected) {
3788 return hw_ops->io_error_detected(pdev, state);
3789 } else {
3790 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3791 return PCI_ERS_RESULT_DISCONNECT;
3792 }
3793 }
3794
3795 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3796 {
3797 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3798 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3799
3800 if (hw_ops->io_slot_reset) {
3801 return hw_ops->io_slot_reset(pdev);
3802 } else {
3803 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3804 return PCI_ERS_RESULT_DISCONNECT;
3805 }
3806 }
3807
3808 static void qlcnic_io_resume(struct pci_dev *pdev)
3809 {
3810 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3811 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3812
3813 if (hw_ops->io_resume)
3814 hw_ops->io_resume(pdev);
3815 else
3816 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3817 }
3818
3819
3820 static int
3821 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3822 {
3823 int err;
3824
3825 err = qlcnic_can_start_firmware(adapter);
3826 if (err)
3827 return err;
3828
3829 err = qlcnic_check_npar_opertional(adapter);
3830 if (err)
3831 return err;
3832
3833 err = qlcnic_initialize_nic(adapter);
3834 if (err)
3835 return err;
3836
3837 qlcnic_check_options(adapter);
3838
3839 err = qlcnic_set_eswitch_port_config(adapter);
3840 if (err)
3841 return err;
3842
3843 adapter->need_fw_reset = 0;
3844
3845 return err;
3846 }
3847
3848 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
3849 int queue_type)
3850 {
3851 struct net_device *netdev = adapter->netdev;
3852 u8 max_hw_rings = 0;
3853 char buf[8];
3854 int cur_rings;
3855
3856 if (queue_type == QLCNIC_RX_QUEUE) {
3857 max_hw_rings = adapter->max_sds_rings;
3858 cur_rings = adapter->drv_sds_rings;
3859 strcpy(buf, "SDS");
3860 } else if (queue_type == QLCNIC_TX_QUEUE) {
3861 max_hw_rings = adapter->max_tx_rings;
3862 cur_rings = adapter->drv_tx_rings;
3863 strcpy(buf, "Tx");
3864 }
3865
3866 if (!qlcnic_use_msi_x && !qlcnic_use_msi) {
3867 netdev_err(netdev, "No RSS/TSS support in INT-x mode\n");
3868 return -EINVAL;
3869 }
3870
3871 if (adapter->flags & QLCNIC_MSI_ENABLED) {
3872 netdev_err(netdev, "No RSS/TSS support in MSI mode\n");
3873 return -EINVAL;
3874 }
3875
3876 if (!is_power_of_2(ring_cnt)) {
3877 netdev_err(netdev, "%s rings value should be a power of 2\n",
3878 buf);
3879 return -EINVAL;
3880 }
3881
3882 if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
3883 !qlcnic_check_multi_tx(adapter)) {
3884 netdev_err(netdev, "No Multi Tx queue support\n");
3885 return -EINVAL;
3886 }
3887
3888 if (ring_cnt > num_online_cpus()) {
3889 netdev_err(netdev,
3890 "%s value[%u] should not be higher than, number of online CPUs\n",
3891 buf, num_online_cpus());
3892 return -EINVAL;
3893 }
3894
3895 return 0;
3896 }
3897
3898 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
3899 {
3900 struct net_device *netdev = adapter->netdev;
3901 int err;
3902
3903 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3904 return -EBUSY;
3905
3906 netif_device_detach(netdev);
3907 if (netif_running(netdev))
3908 __qlcnic_down(adapter, netdev);
3909
3910 qlcnic_detach(adapter);
3911
3912 if (qlcnic_83xx_check(adapter)) {
3913 qlcnic_83xx_free_mbx_intr(adapter);
3914 qlcnic_83xx_enable_mbx_poll(adapter);
3915 }
3916
3917 qlcnic_teardown_intr(adapter);
3918
3919 err = qlcnic_setup_intr(adapter);
3920 if (err) {
3921 kfree(adapter->msix_entries);
3922 netdev_err(netdev, "failed to setup interrupt\n");
3923 return err;
3924 }
3925
3926 netif_set_real_num_tx_queues(netdev, adapter->drv_tx_rings);
3927
3928 if (qlcnic_83xx_check(adapter)) {
3929 qlcnic_83xx_initialize_nic(adapter, 1);
3930 err = qlcnic_83xx_setup_mbx_intr(adapter);
3931 qlcnic_83xx_disable_mbx_poll(adapter);
3932 if (err) {
3933 dev_err(&adapter->pdev->dev,
3934 "failed to setup mbx interrupt\n");
3935 goto done;
3936 }
3937 }
3938
3939 if (netif_running(netdev)) {
3940 err = qlcnic_attach(adapter);
3941 if (err)
3942 goto done;
3943 err = __qlcnic_up(adapter, netdev);
3944 if (err)
3945 goto done;
3946 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3947 }
3948 done:
3949 netif_device_attach(netdev);
3950 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3951 return err;
3952 }
3953
3954 #ifdef CONFIG_INET
3955
3956 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3957
3958 static void
3959 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3960 struct net_device *dev, unsigned long event)
3961 {
3962 struct in_device *indev;
3963
3964 indev = in_dev_get(dev);
3965 if (!indev)
3966 return;
3967
3968 for_ifa(indev) {
3969 switch (event) {
3970 case NETDEV_UP:
3971 qlcnic_config_ipaddr(adapter,
3972 ifa->ifa_address, QLCNIC_IP_UP);
3973 break;
3974 case NETDEV_DOWN:
3975 qlcnic_config_ipaddr(adapter,
3976 ifa->ifa_address, QLCNIC_IP_DOWN);
3977 break;
3978 default:
3979 break;
3980 }
3981 } endfor_ifa(indev);
3982
3983 in_dev_put(indev);
3984 }
3985
3986 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3987 {
3988 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3989 struct net_device *dev;
3990 u16 vid;
3991
3992 qlcnic_config_indev_addr(adapter, netdev, event);
3993
3994 rcu_read_lock();
3995 for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3996 dev = __vlan_find_dev_deep(netdev, htons(ETH_P_8021Q), vid);
3997 if (!dev)
3998 continue;
3999 qlcnic_config_indev_addr(adapter, dev, event);
4000 }
4001 rcu_read_unlock();
4002 }
4003
4004 static int qlcnic_netdev_event(struct notifier_block *this,
4005 unsigned long event, void *ptr)
4006 {
4007 struct qlcnic_adapter *adapter;
4008 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4009
4010 recheck:
4011 if (dev == NULL)
4012 goto done;
4013
4014 if (dev->priv_flags & IFF_802_1Q_VLAN) {
4015 dev = vlan_dev_real_dev(dev);
4016 goto recheck;
4017 }
4018
4019 if (!is_qlcnic_netdev(dev))
4020 goto done;
4021
4022 adapter = netdev_priv(dev);
4023
4024 if (!adapter)
4025 goto done;
4026
4027 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4028 goto done;
4029
4030 qlcnic_config_indev_addr(adapter, dev, event);
4031 done:
4032 return NOTIFY_DONE;
4033 }
4034
4035 static int
4036 qlcnic_inetaddr_event(struct notifier_block *this,
4037 unsigned long event, void *ptr)
4038 {
4039 struct qlcnic_adapter *adapter;
4040 struct net_device *dev;
4041
4042 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4043
4044 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4045
4046 recheck:
4047 if (dev == NULL)
4048 goto done;
4049
4050 if (dev->priv_flags & IFF_802_1Q_VLAN) {
4051 dev = vlan_dev_real_dev(dev);
4052 goto recheck;
4053 }
4054
4055 if (!is_qlcnic_netdev(dev))
4056 goto done;
4057
4058 adapter = netdev_priv(dev);
4059
4060 if (!adapter)
4061 goto done;
4062
4063 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4064 goto done;
4065
4066 switch (event) {
4067 case NETDEV_UP:
4068 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4069
4070 break;
4071 case NETDEV_DOWN:
4072 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4073
4074 break;
4075 default:
4076 break;
4077 }
4078
4079 done:
4080 return NOTIFY_DONE;
4081 }
4082
4083 static struct notifier_block qlcnic_netdev_cb = {
4084 .notifier_call = qlcnic_netdev_event,
4085 };
4086
4087 static struct notifier_block qlcnic_inetaddr_cb = {
4088 .notifier_call = qlcnic_inetaddr_event,
4089 };
4090 #else
4091 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4092 { }
4093 #endif
4094 static const struct pci_error_handlers qlcnic_err_handler = {
4095 .error_detected = qlcnic_io_error_detected,
4096 .slot_reset = qlcnic_io_slot_reset,
4097 .resume = qlcnic_io_resume,
4098 };
4099
4100 static struct pci_driver qlcnic_driver = {
4101 .name = qlcnic_driver_name,
4102 .id_table = qlcnic_pci_tbl,
4103 .probe = qlcnic_probe,
4104 .remove = qlcnic_remove,
4105 #ifdef CONFIG_PM
4106 .suspend = qlcnic_suspend,
4107 .resume = qlcnic_resume,
4108 #endif
4109 .shutdown = qlcnic_shutdown,
4110 .err_handler = &qlcnic_err_handler,
4111 #ifdef CONFIG_QLCNIC_SRIOV
4112 .sriov_configure = qlcnic_pci_sriov_configure,
4113 #endif
4114
4115 };
4116
4117 static int __init qlcnic_init_module(void)
4118 {
4119 int ret;
4120
4121 printk(KERN_INFO "%s\n", qlcnic_driver_string);
4122
4123 #ifdef CONFIG_INET
4124 register_netdevice_notifier(&qlcnic_netdev_cb);
4125 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4126 #endif
4127
4128 ret = pci_register_driver(&qlcnic_driver);
4129 if (ret) {
4130 #ifdef CONFIG_INET
4131 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4132 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4133 #endif
4134 }
4135
4136 return ret;
4137 }
4138
4139 module_init(qlcnic_init_module);
4140
4141 static void __exit qlcnic_exit_module(void)
4142 {
4143 pci_unregister_driver(&qlcnic_driver);
4144
4145 #ifdef CONFIG_INET
4146 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4147 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4148 #endif
4149 }
4150
4151 module_exit(qlcnic_exit_module);
Linux kernel - Deliverables
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