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 #ifdef CONFIG_QLCNIC_VXLAN
25 #include <net/vxlan.h>
26 #endif
27
28 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
29 MODULE_LICENSE("GPL");
30 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
31 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
32
33 char qlcnic_driver_name[] = "qlcnic";
34 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
35 "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
36
37 static int qlcnic_mac_learn;
38 module_param(qlcnic_mac_learn, int, 0444);
39 MODULE_PARM_DESC(qlcnic_mac_learn,
40 "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
41
42 int qlcnic_use_msi = 1;
43 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
44 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
45
46 int qlcnic_use_msi_x = 1;
47 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
48 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
49
50 int qlcnic_auto_fw_reset = 1;
51 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
52 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
53
54 int qlcnic_load_fw_file;
55 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file, 2=POST in fast mode, 3= POST in medium mode, 4=POST in slow mode)");
56 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
57
58 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
59 static void qlcnic_remove(struct pci_dev *pdev);
60 static int qlcnic_open(struct net_device *netdev);
61 static int qlcnic_close(struct net_device *netdev);
62 static void qlcnic_tx_timeout(struct net_device *netdev);
63 static void qlcnic_attach_work(struct work_struct *work);
64 static void qlcnic_fwinit_work(struct work_struct *work);
65 #ifdef CONFIG_NET_POLL_CONTROLLER
66 static void qlcnic_poll_controller(struct net_device *netdev);
67 #endif
68
69 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
70 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
71
72 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
73 static irqreturn_t qlcnic_intr(int irq, void *data);
74 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
75 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
76 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
77
78 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
79 static int qlcnic_start_firmware(struct qlcnic_adapter *);
80
81 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
82 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
83 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
84 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
85 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
86
87 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *);
88 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *, u32);
89 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *);
90 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *);
91 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *);
92 static void qlcnic_82xx_io_resume(struct pci_dev *);
93 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
94 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *,
95 pci_channel_state_t);
qlcnic_vlan_tx_check(struct qlcnic_adapter * adapter)96 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
97 {
98 struct qlcnic_hardware_context *ahw = adapter->ahw;
99
100 if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
101 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
102 else
103 return 1;
104 }
105
106 /* PCI Device ID Table */
107 #define ENTRY(device) \
108 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
109 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
110
111 static const struct pci_device_id qlcnic_pci_tbl[] = {
112 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
113 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
114 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE8830),
115 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
116 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
117 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
118 {0,}
119 };
120
121 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
122
123
qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring * tx_ring)124 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
125 {
126 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
127 }
128
129 static const u32 msi_tgt_status[8] = {
130 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
131 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
132 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
133 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
134 };
135
136 static const u32 qlcnic_reg_tbl[] = {
137 0x1B20A8, /* PEG_HALT_STAT1 */
138 0x1B20AC, /* PEG_HALT_STAT2 */
139 0x1B20B0, /* FW_HEARTBEAT */
140 0x1B2100, /* LOCK ID */
141 0x1B2128, /* FW_CAPABILITIES */
142 0x1B2138, /* drv active */
143 0x1B2140, /* dev state */
144 0x1B2144, /* drv state */
145 0x1B2148, /* drv scratch */
146 0x1B214C, /* dev partition info */
147 0x1B2174, /* drv idc ver */
148 0x1B2150, /* fw version major */
149 0x1B2154, /* fw version minor */
150 0x1B2158, /* fw version sub */
151 0x1B219C, /* npar state */
152 0x1B21FC, /* FW_IMG_VALID */
153 0x1B2250, /* CMD_PEG_STATE */
154 0x1B233C, /* RCV_PEG_STATE */
155 0x1B23B4, /* ASIC TEMP */
156 0x1B216C, /* FW api */
157 0x1B2170, /* drv op mode */
158 0x13C010, /* flash lock */
159 0x13C014, /* flash unlock */
160 };
161
162 static const struct qlcnic_board_info qlcnic_boards[] = {
163 { PCI_VENDOR_ID_QLOGIC,
164 PCI_DEVICE_ID_QLOGIC_QLE844X,
165 0x0,
166 0x0,
167 "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
168 { PCI_VENDOR_ID_QLOGIC,
169 PCI_DEVICE_ID_QLOGIC_QLE834X,
170 PCI_VENDOR_ID_QLOGIC,
171 0x24e,
172 "8300 Series Dual Port 10GbE Converged Network Adapter "
173 "(TCP/IP Networking)" },
174 { PCI_VENDOR_ID_QLOGIC,
175 PCI_DEVICE_ID_QLOGIC_QLE834X,
176 PCI_VENDOR_ID_QLOGIC,
177 0x243,
178 "8300 Series Single Port 10GbE Converged Network Adapter "
179 "(TCP/IP Networking)" },
180 { PCI_VENDOR_ID_QLOGIC,
181 PCI_DEVICE_ID_QLOGIC_QLE834X,
182 PCI_VENDOR_ID_QLOGIC,
183 0x24a,
184 "8300 Series Dual Port 10GbE Converged Network Adapter "
185 "(TCP/IP Networking)" },
186 { PCI_VENDOR_ID_QLOGIC,
187 PCI_DEVICE_ID_QLOGIC_QLE834X,
188 PCI_VENDOR_ID_QLOGIC,
189 0x246,
190 "8300 Series Dual Port 10GbE Converged Network Adapter "
191 "(TCP/IP Networking)" },
192 { PCI_VENDOR_ID_QLOGIC,
193 PCI_DEVICE_ID_QLOGIC_QLE834X,
194 PCI_VENDOR_ID_QLOGIC,
195 0x252,
196 "8300 Series Dual Port 10GbE Converged Network Adapter "
197 "(TCP/IP Networking)" },
198 { PCI_VENDOR_ID_QLOGIC,
199 PCI_DEVICE_ID_QLOGIC_QLE834X,
200 PCI_VENDOR_ID_QLOGIC,
201 0x26e,
202 "8300 Series Dual Port 10GbE Converged Network Adapter "
203 "(TCP/IP Networking)" },
204 { PCI_VENDOR_ID_QLOGIC,
205 PCI_DEVICE_ID_QLOGIC_QLE834X,
206 PCI_VENDOR_ID_QLOGIC,
207 0x260,
208 "8300 Series Dual Port 10GbE Converged Network Adapter "
209 "(TCP/IP Networking)" },
210 { PCI_VENDOR_ID_QLOGIC,
211 PCI_DEVICE_ID_QLOGIC_QLE834X,
212 PCI_VENDOR_ID_QLOGIC,
213 0x266,
214 "8300 Series Single Port 10GbE Converged Network Adapter "
215 "(TCP/IP Networking)" },
216 { PCI_VENDOR_ID_QLOGIC,
217 PCI_DEVICE_ID_QLOGIC_QLE834X,
218 PCI_VENDOR_ID_QLOGIC,
219 0x269,
220 "8300 Series Dual Port 10GbE Converged Network Adapter "
221 "(TCP/IP Networking)" },
222 { PCI_VENDOR_ID_QLOGIC,
223 PCI_DEVICE_ID_QLOGIC_QLE834X,
224 PCI_VENDOR_ID_QLOGIC,
225 0x271,
226 "8300 Series Dual Port 10GbE Converged Network Adapter "
227 "(TCP/IP Networking)" },
228 { PCI_VENDOR_ID_QLOGIC,
229 PCI_DEVICE_ID_QLOGIC_QLE834X,
230 0x0, 0x0, "8300 Series 1/10GbE Controller" },
231 { PCI_VENDOR_ID_QLOGIC,
232 PCI_DEVICE_ID_QLOGIC_QLE8830,
233 0x0,
234 0x0,
235 "8830 Series 1/10GbE Controller" },
236 { PCI_VENDOR_ID_QLOGIC,
237 PCI_DEVICE_ID_QLOGIC_QLE824X,
238 PCI_VENDOR_ID_QLOGIC,
239 0x203,
240 "8200 Series Single Port 10GbE Converged Network Adapter"
241 "(TCP/IP Networking)" },
242 { PCI_VENDOR_ID_QLOGIC,
243 PCI_DEVICE_ID_QLOGIC_QLE824X,
244 PCI_VENDOR_ID_QLOGIC,
245 0x207,
246 "8200 Series Dual Port 10GbE Converged Network Adapter"
247 "(TCP/IP Networking)" },
248 { PCI_VENDOR_ID_QLOGIC,
249 PCI_DEVICE_ID_QLOGIC_QLE824X,
250 PCI_VENDOR_ID_QLOGIC,
251 0x20b,
252 "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
253 { PCI_VENDOR_ID_QLOGIC,
254 PCI_DEVICE_ID_QLOGIC_QLE824X,
255 PCI_VENDOR_ID_QLOGIC,
256 0x20c,
257 "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
258 { PCI_VENDOR_ID_QLOGIC,
259 PCI_DEVICE_ID_QLOGIC_QLE824X,
260 PCI_VENDOR_ID_QLOGIC,
261 0x20f,
262 "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
263 { PCI_VENDOR_ID_QLOGIC,
264 PCI_DEVICE_ID_QLOGIC_QLE824X,
265 0x103c, 0x3733,
266 "NC523SFP 10Gb 2-port Server Adapter" },
267 { PCI_VENDOR_ID_QLOGIC,
268 PCI_DEVICE_ID_QLOGIC_QLE824X,
269 0x103c, 0x3346,
270 "CN1000Q Dual Port Converged Network Adapter" },
271 { PCI_VENDOR_ID_QLOGIC,
272 PCI_DEVICE_ID_QLOGIC_QLE824X,
273 PCI_VENDOR_ID_QLOGIC,
274 0x210,
275 "QME8242-k 10GbE Dual Port Mezzanine Card" },
276 { PCI_VENDOR_ID_QLOGIC,
277 PCI_DEVICE_ID_QLOGIC_QLE824X,
278 0x0, 0x0, "cLOM8214 1/10GbE Controller" },
279 };
280
281 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
282
283 static const
284 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
285
qlcnic_alloc_sds_rings(struct qlcnic_recv_context * recv_ctx,int count)286 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
287 {
288 int size = sizeof(struct qlcnic_host_sds_ring) * count;
289
290 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
291
292 return recv_ctx->sds_rings == NULL;
293 }
294
qlcnic_free_sds_rings(struct qlcnic_recv_context * recv_ctx)295 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
296 {
297 kfree(recv_ctx->sds_rings);
298 recv_ctx->sds_rings = NULL;
299 }
300
qlcnic_read_mac_addr(struct qlcnic_adapter * adapter)301 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
302 {
303 struct net_device *netdev = adapter->netdev;
304 struct pci_dev *pdev = adapter->pdev;
305 u8 mac_addr[ETH_ALEN];
306 int ret;
307
308 ret = qlcnic_get_mac_address(adapter, mac_addr,
309 adapter->ahw->pci_func);
310 if (ret)
311 return ret;
312
313 memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
314 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
315
316 /* set station address */
317
318 if (!is_valid_ether_addr(netdev->dev_addr))
319 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
320 netdev->dev_addr);
321
322 return 0;
323 }
324
qlcnic_delete_adapter_mac(struct qlcnic_adapter * adapter)325 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
326 {
327 struct qlcnic_mac_vlan_list *cur;
328 struct list_head *head;
329
330 list_for_each(head, &adapter->mac_list) {
331 cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
332 if (ether_addr_equal_unaligned(adapter->mac_addr, cur->mac_addr)) {
333 qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
334 0, QLCNIC_MAC_DEL);
335 list_del(&cur->list);
336 kfree(cur);
337 return;
338 }
339 }
340 }
341
qlcnic_set_mac(struct net_device * netdev,void * p)342 static int qlcnic_set_mac(struct net_device *netdev, void *p)
343 {
344 struct qlcnic_adapter *adapter = netdev_priv(netdev);
345 struct sockaddr *addr = p;
346
347 if (qlcnic_sriov_vf_check(adapter))
348 return -EINVAL;
349
350 if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
351 return -EOPNOTSUPP;
352
353 if (!is_valid_ether_addr(addr->sa_data))
354 return -EINVAL;
355
356 if (ether_addr_equal_unaligned(adapter->mac_addr, addr->sa_data))
357 return 0;
358
359 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
360 netif_device_detach(netdev);
361 qlcnic_napi_disable(adapter);
362 }
363
364 qlcnic_delete_adapter_mac(adapter);
365 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
366 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
367 qlcnic_set_multi(adapter->netdev);
368
369 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
370 netif_device_attach(netdev);
371 qlcnic_napi_enable(adapter);
372 }
373 return 0;
374 }
375
qlcnic_fdb_del(struct ndmsg * ndm,struct nlattr * tb[],struct net_device * netdev,const unsigned char * addr,u16 vid)376 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
377 struct net_device *netdev,
378 const unsigned char *addr, u16 vid)
379 {
380 struct qlcnic_adapter *adapter = netdev_priv(netdev);
381 int err = -EOPNOTSUPP;
382
383 if (!adapter->fdb_mac_learn)
384 return ndo_dflt_fdb_del(ndm, tb, netdev, addr, vid);
385
386 if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
387 qlcnic_sriov_check(adapter)) {
388 if (is_unicast_ether_addr(addr)) {
389 err = dev_uc_del(netdev, addr);
390 if (!err)
391 err = qlcnic_nic_del_mac(adapter, addr);
392 } else if (is_multicast_ether_addr(addr)) {
393 err = dev_mc_del(netdev, addr);
394 } else {
395 err = -EINVAL;
396 }
397 }
398 return err;
399 }
400
qlcnic_fdb_add(struct ndmsg * ndm,struct nlattr * tb[],struct net_device * netdev,const unsigned char * addr,u16 vid,u16 flags)401 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
402 struct net_device *netdev,
403 const unsigned char *addr, u16 vid, u16 flags)
404 {
405 struct qlcnic_adapter *adapter = netdev_priv(netdev);
406 int err = 0;
407
408 if (!adapter->fdb_mac_learn)
409 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, vid, flags);
410
411 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
412 !qlcnic_sriov_check(adapter)) {
413 pr_info("%s: FDB e-switch is not enabled\n", __func__);
414 return -EOPNOTSUPP;
415 }
416
417 if (ether_addr_equal(addr, adapter->mac_addr))
418 return err;
419
420 if (is_unicast_ether_addr(addr)) {
421 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
422 err = dev_uc_add_excl(netdev, addr);
423 else
424 err = -ENOMEM;
425 } else if (is_multicast_ether_addr(addr)) {
426 err = dev_mc_add_excl(netdev, addr);
427 } else {
428 err = -EINVAL;
429 }
430
431 return err;
432 }
433
qlcnic_fdb_dump(struct sk_buff * skb,struct netlink_callback * ncb,struct net_device * netdev,struct net_device * filter_dev,int idx)434 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
435 struct net_device *netdev,
436 struct net_device *filter_dev, int idx)
437 {
438 struct qlcnic_adapter *adapter = netdev_priv(netdev);
439
440 if (!adapter->fdb_mac_learn)
441 return ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
442
443 if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
444 qlcnic_sriov_check(adapter))
445 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
446
447 return idx;
448 }
449
qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter * adapter)450 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
451 {
452 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
453 usleep_range(10000, 11000);
454
455 if (!adapter->fw_work.work.func)
456 return;
457
458 cancel_delayed_work_sync(&adapter->fw_work);
459 }
460
qlcnic_get_phys_port_id(struct net_device * netdev,struct netdev_phys_item_id * ppid)461 static int qlcnic_get_phys_port_id(struct net_device *netdev,
462 struct netdev_phys_item_id *ppid)
463 {
464 struct qlcnic_adapter *adapter = netdev_priv(netdev);
465 struct qlcnic_hardware_context *ahw = adapter->ahw;
466
467 if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
468 return -EOPNOTSUPP;
469
470 ppid->id_len = sizeof(ahw->phys_port_id);
471 memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
472
473 return 0;
474 }
475
476 #ifdef CONFIG_QLCNIC_VXLAN
qlcnic_add_vxlan_port(struct net_device * netdev,sa_family_t sa_family,__be16 port)477 static void qlcnic_add_vxlan_port(struct net_device *netdev,
478 sa_family_t sa_family, __be16 port)
479 {
480 struct qlcnic_adapter *adapter = netdev_priv(netdev);
481 struct qlcnic_hardware_context *ahw = adapter->ahw;
482
483 /* Adapter supports only one VXLAN port. Use very first port
484 * for enabling offload
485 */
486 if (!qlcnic_encap_rx_offload(adapter) || ahw->vxlan_port)
487 return;
488
489 ahw->vxlan_port = ntohs(port);
490 adapter->flags |= QLCNIC_ADD_VXLAN_PORT;
491 }
492
qlcnic_del_vxlan_port(struct net_device * netdev,sa_family_t sa_family,__be16 port)493 static void qlcnic_del_vxlan_port(struct net_device *netdev,
494 sa_family_t sa_family, __be16 port)
495 {
496 struct qlcnic_adapter *adapter = netdev_priv(netdev);
497 struct qlcnic_hardware_context *ahw = adapter->ahw;
498
499 if (!qlcnic_encap_rx_offload(adapter) || !ahw->vxlan_port ||
500 (ahw->vxlan_port != ntohs(port)))
501 return;
502
503 adapter->flags |= QLCNIC_DEL_VXLAN_PORT;
504 }
505
qlcnic_features_check(struct sk_buff * skb,struct net_device * dev,netdev_features_t features)506 static netdev_features_t qlcnic_features_check(struct sk_buff *skb,
507 struct net_device *dev,
508 netdev_features_t features)
509 {
510 features = vlan_features_check(skb, features);
511 return vxlan_features_check(skb, features);
512 }
513 #endif
514
515 static const struct net_device_ops qlcnic_netdev_ops = {
516 .ndo_open = qlcnic_open,
517 .ndo_stop = qlcnic_close,
518 .ndo_start_xmit = qlcnic_xmit_frame,
519 .ndo_get_stats = qlcnic_get_stats,
520 .ndo_validate_addr = eth_validate_addr,
521 .ndo_set_rx_mode = qlcnic_set_multi,
522 .ndo_set_mac_address = qlcnic_set_mac,
523 .ndo_change_mtu = qlcnic_change_mtu,
524 .ndo_fix_features = qlcnic_fix_features,
525 .ndo_set_features = qlcnic_set_features,
526 .ndo_tx_timeout = qlcnic_tx_timeout,
527 .ndo_vlan_rx_add_vid = qlcnic_vlan_rx_add,
528 .ndo_vlan_rx_kill_vid = qlcnic_vlan_rx_del,
529 .ndo_fdb_add = qlcnic_fdb_add,
530 .ndo_fdb_del = qlcnic_fdb_del,
531 .ndo_fdb_dump = qlcnic_fdb_dump,
532 .ndo_get_phys_port_id = qlcnic_get_phys_port_id,
533 #ifdef CONFIG_QLCNIC_VXLAN
534 .ndo_add_vxlan_port = qlcnic_add_vxlan_port,
535 .ndo_del_vxlan_port = qlcnic_del_vxlan_port,
536 .ndo_features_check = qlcnic_features_check,
537 #endif
538 #ifdef CONFIG_NET_POLL_CONTROLLER
539 .ndo_poll_controller = qlcnic_poll_controller,
540 #endif
541 #ifdef CONFIG_QLCNIC_SRIOV
542 .ndo_set_vf_mac = qlcnic_sriov_set_vf_mac,
543 .ndo_set_vf_rate = qlcnic_sriov_set_vf_tx_rate,
544 .ndo_get_vf_config = qlcnic_sriov_get_vf_config,
545 .ndo_set_vf_vlan = qlcnic_sriov_set_vf_vlan,
546 .ndo_set_vf_spoofchk = qlcnic_sriov_set_vf_spoofchk,
547 #endif
548 };
549
550 static const struct net_device_ops qlcnic_netdev_failed_ops = {
551 .ndo_open = qlcnic_open,
552 };
553
554 static struct qlcnic_nic_template qlcnic_ops = {
555 .config_bridged_mode = qlcnic_config_bridged_mode,
556 .config_led = qlcnic_82xx_config_led,
557 .start_firmware = qlcnic_82xx_start_firmware,
558 .request_reset = qlcnic_82xx_dev_request_reset,
559 .cancel_idc_work = qlcnic_82xx_cancel_idc_work,
560 .napi_add = qlcnic_82xx_napi_add,
561 .napi_del = qlcnic_82xx_napi_del,
562 .config_ipaddr = qlcnic_82xx_config_ipaddr,
563 .shutdown = qlcnic_82xx_shutdown,
564 .resume = qlcnic_82xx_resume,
565 .clear_legacy_intr = qlcnic_82xx_clear_legacy_intr,
566 };
567
568 struct qlcnic_nic_template qlcnic_vf_ops = {
569 .config_bridged_mode = qlcnicvf_config_bridged_mode,
570 .config_led = qlcnicvf_config_led,
571 .start_firmware = qlcnicvf_start_firmware
572 };
573
574 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
575 .read_crb = qlcnic_82xx_read_crb,
576 .write_crb = qlcnic_82xx_write_crb,
577 .read_reg = qlcnic_82xx_hw_read_wx_2M,
578 .write_reg = qlcnic_82xx_hw_write_wx_2M,
579 .get_mac_address = qlcnic_82xx_get_mac_address,
580 .setup_intr = qlcnic_82xx_setup_intr,
581 .alloc_mbx_args = qlcnic_82xx_alloc_mbx_args,
582 .mbx_cmd = qlcnic_82xx_issue_cmd,
583 .get_func_no = qlcnic_82xx_get_func_no,
584 .api_lock = qlcnic_82xx_api_lock,
585 .api_unlock = qlcnic_82xx_api_unlock,
586 .add_sysfs = qlcnic_82xx_add_sysfs,
587 .remove_sysfs = qlcnic_82xx_remove_sysfs,
588 .process_lb_rcv_ring_diag = qlcnic_82xx_process_rcv_ring_diag,
589 .create_rx_ctx = qlcnic_82xx_fw_cmd_create_rx_ctx,
590 .create_tx_ctx = qlcnic_82xx_fw_cmd_create_tx_ctx,
591 .del_rx_ctx = qlcnic_82xx_fw_cmd_del_rx_ctx,
592 .del_tx_ctx = qlcnic_82xx_fw_cmd_del_tx_ctx,
593 .setup_link_event = qlcnic_82xx_linkevent_request,
594 .get_nic_info = qlcnic_82xx_get_nic_info,
595 .get_pci_info = qlcnic_82xx_get_pci_info,
596 .set_nic_info = qlcnic_82xx_set_nic_info,
597 .change_macvlan = qlcnic_82xx_sre_macaddr_change,
598 .napi_enable = qlcnic_82xx_napi_enable,
599 .napi_disable = qlcnic_82xx_napi_disable,
600 .config_intr_coal = qlcnic_82xx_config_intr_coalesce,
601 .config_rss = qlcnic_82xx_config_rss,
602 .config_hw_lro = qlcnic_82xx_config_hw_lro,
603 .config_loopback = qlcnic_82xx_set_lb_mode,
604 .clear_loopback = qlcnic_82xx_clear_lb_mode,
605 .config_promisc_mode = qlcnic_82xx_nic_set_promisc,
606 .change_l2_filter = qlcnic_82xx_change_filter,
607 .get_board_info = qlcnic_82xx_get_board_info,
608 .set_mac_filter_count = qlcnic_82xx_set_mac_filter_count,
609 .free_mac_list = qlcnic_82xx_free_mac_list,
610 .read_phys_port_id = qlcnic_82xx_read_phys_port_id,
611 .io_error_detected = qlcnic_82xx_io_error_detected,
612 .io_slot_reset = qlcnic_82xx_io_slot_reset,
613 .io_resume = qlcnic_82xx_io_resume,
614 .get_beacon_state = qlcnic_82xx_get_beacon_state,
615 .enable_sds_intr = qlcnic_82xx_enable_sds_intr,
616 .disable_sds_intr = qlcnic_82xx_disable_sds_intr,
617 .enable_tx_intr = qlcnic_82xx_enable_tx_intr,
618 .disable_tx_intr = qlcnic_82xx_disable_tx_intr,
619 .get_saved_state = qlcnic_82xx_get_saved_state,
620 .set_saved_state = qlcnic_82xx_set_saved_state,
621 .cache_tmpl_hdr_values = qlcnic_82xx_cache_tmpl_hdr_values,
622 .get_cap_size = qlcnic_82xx_get_cap_size,
623 .set_sys_info = qlcnic_82xx_set_sys_info,
624 .store_cap_mask = qlcnic_82xx_store_cap_mask,
625 };
626
qlcnic_check_multi_tx_capability(struct qlcnic_adapter * adapter)627 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
628 {
629 struct qlcnic_hardware_context *ahw = adapter->ahw;
630
631 if (qlcnic_82xx_check(adapter) &&
632 (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
633 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
634 return 0;
635 } else {
636 return 1;
637 }
638 }
639
qlcnic_max_rings(struct qlcnic_adapter * adapter,u8 ring_cnt,int queue_type)640 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
641 int queue_type)
642 {
643 int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
644
645 if (queue_type == QLCNIC_RX_QUEUE)
646 max_rings = adapter->max_sds_rings;
647 else if (queue_type == QLCNIC_TX_QUEUE)
648 max_rings = adapter->max_tx_rings;
649
650 num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
651 max_rings));
652
653 if (ring_cnt > num_rings)
654 return num_rings;
655 else
656 return ring_cnt;
657 }
658
qlcnic_set_tx_ring_count(struct qlcnic_adapter * adapter,u8 tx_cnt)659 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
660 {
661 /* 83xx adapter does not have max_tx_rings intialized in probe */
662 if (adapter->max_tx_rings)
663 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
664 QLCNIC_TX_QUEUE);
665 else
666 adapter->drv_tx_rings = tx_cnt;
667 }
668
qlcnic_set_sds_ring_count(struct qlcnic_adapter * adapter,u8 rx_cnt)669 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
670 {
671 /* 83xx adapter does not have max_sds_rings intialized in probe */
672 if (adapter->max_sds_rings)
673 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
674 QLCNIC_RX_QUEUE);
675 else
676 adapter->drv_sds_rings = rx_cnt;
677 }
678
qlcnic_setup_tss_rss_intr(struct qlcnic_adapter * adapter)679 int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
680 {
681 struct pci_dev *pdev = adapter->pdev;
682 int num_msix = 0, err = 0, vector;
683
684 adapter->flags &= ~QLCNIC_TSS_RSS;
685
686 if (adapter->drv_tss_rings > 0)
687 num_msix += adapter->drv_tss_rings;
688 else
689 num_msix += adapter->drv_tx_rings;
690
691 if (adapter->drv_rss_rings > 0)
692 num_msix += adapter->drv_rss_rings;
693 else
694 num_msix += adapter->drv_sds_rings;
695
696 if (qlcnic_83xx_check(adapter))
697 num_msix += 1;
698
699 if (!adapter->msix_entries) {
700 adapter->msix_entries = kcalloc(num_msix,
701 sizeof(struct msix_entry),
702 GFP_KERNEL);
703 if (!adapter->msix_entries)
704 return -ENOMEM;
705 }
706
707 for (vector = 0; vector < num_msix; vector++)
708 adapter->msix_entries[vector].entry = vector;
709
710 restore:
711 err = pci_enable_msix_exact(pdev, adapter->msix_entries, num_msix);
712 if (err == -ENOSPC) {
713 if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
714 return err;
715
716 netdev_info(adapter->netdev,
717 "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
718 num_msix, err);
719
720 num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
721
722 /* Set rings to 0 so we can restore original TSS/RSS count */
723 adapter->drv_tss_rings = 0;
724 adapter->drv_rss_rings = 0;
725
726 if (qlcnic_83xx_check(adapter))
727 num_msix += 1;
728
729 netdev_info(adapter->netdev,
730 "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
731 adapter->drv_tx_rings, adapter->drv_sds_rings,
732 num_msix);
733
734 goto restore;
735 } else if (err < 0) {
736 return err;
737 }
738
739 adapter->ahw->num_msix = num_msix;
740 if (adapter->drv_tss_rings > 0)
741 adapter->drv_tx_rings = adapter->drv_tss_rings;
742
743 if (adapter->drv_rss_rings > 0)
744 adapter->drv_sds_rings = adapter->drv_rss_rings;
745
746 return 0;
747 }
748
qlcnic_enable_msix(struct qlcnic_adapter * adapter,u32 num_msix)749 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
750 {
751 struct pci_dev *pdev = adapter->pdev;
752 int err, vector;
753
754 if (!adapter->msix_entries) {
755 adapter->msix_entries = kcalloc(num_msix,
756 sizeof(struct msix_entry),
757 GFP_KERNEL);
758 if (!adapter->msix_entries)
759 return -ENOMEM;
760 }
761
762 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
763
764 if (adapter->ahw->msix_supported) {
765 enable_msix:
766 for (vector = 0; vector < num_msix; vector++)
767 adapter->msix_entries[vector].entry = vector;
768
769 err = pci_enable_msix_range(pdev,
770 adapter->msix_entries, 1, num_msix);
771
772 if (err == num_msix) {
773 adapter->flags |= QLCNIC_MSIX_ENABLED;
774 adapter->ahw->num_msix = num_msix;
775 dev_info(&pdev->dev, "using msi-x interrupts\n");
776 return 0;
777 } else if (err > 0) {
778 pci_disable_msix(pdev);
779
780 dev_info(&pdev->dev,
781 "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
782 num_msix, err);
783
784 if (qlcnic_82xx_check(adapter)) {
785 num_msix = rounddown_pow_of_two(err);
786 if (err < QLCNIC_82XX_MINIMUM_VECTOR)
787 return -ENOSPC;
788 } else {
789 num_msix = rounddown_pow_of_two(err - 1);
790 num_msix += 1;
791 if (err < QLCNIC_83XX_MINIMUM_VECTOR)
792 return -ENOSPC;
793 }
794
795 if (qlcnic_82xx_check(adapter) &&
796 !qlcnic_check_multi_tx(adapter)) {
797 adapter->drv_sds_rings = num_msix;
798 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
799 } else {
800 /* Distribute vectors equally */
801 adapter->drv_tx_rings = num_msix / 2;
802 adapter->drv_sds_rings = adapter->drv_tx_rings;
803 }
804
805 if (num_msix) {
806 dev_info(&pdev->dev,
807 "Trying to allocate %d MSI-X interrupt vectors\n",
808 num_msix);
809 goto enable_msix;
810 }
811 } else {
812 dev_info(&pdev->dev,
813 "Unable to allocate %d MSI-X vectors, err=%d\n",
814 num_msix, err);
815 return err;
816 }
817 }
818
819 return -EIO;
820 }
821
qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter * adapter)822 static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
823 {
824 int num_msix;
825
826 num_msix = adapter->drv_sds_rings;
827
828 if (qlcnic_check_multi_tx(adapter))
829 num_msix += adapter->drv_tx_rings;
830 else
831 num_msix += QLCNIC_SINGLE_RING;
832
833 return num_msix;
834 }
835
qlcnic_enable_msi_legacy(struct qlcnic_adapter * adapter)836 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
837 {
838 int err = 0;
839 u32 offset, mask_reg;
840 const struct qlcnic_legacy_intr_set *legacy_intrp;
841 struct qlcnic_hardware_context *ahw = adapter->ahw;
842 struct pci_dev *pdev = adapter->pdev;
843
844 if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
845 adapter->flags |= QLCNIC_MSI_ENABLED;
846 offset = msi_tgt_status[adapter->ahw->pci_func];
847 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
848 offset);
849 dev_info(&pdev->dev, "using msi interrupts\n");
850 adapter->msix_entries[0].vector = pdev->irq;
851 return err;
852 }
853
854 if (qlcnic_use_msi || qlcnic_use_msi_x)
855 return -EOPNOTSUPP;
856
857 legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
858 adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
859 offset = legacy_intrp->tgt_status_reg;
860 adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
861 mask_reg = legacy_intrp->tgt_mask_reg;
862 adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
863 adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
864 adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
865 dev_info(&pdev->dev, "using legacy interrupts\n");
866 adapter->msix_entries[0].vector = pdev->irq;
867 return err;
868 }
869
qlcnic_82xx_setup_intr(struct qlcnic_adapter * adapter)870 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
871 {
872 int num_msix, err = 0;
873
874 if (adapter->flags & QLCNIC_TSS_RSS) {
875 err = qlcnic_setup_tss_rss_intr(adapter);
876 if (err < 0)
877 return err;
878 num_msix = adapter->ahw->num_msix;
879 } else {
880 num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
881
882 err = qlcnic_enable_msix(adapter, num_msix);
883 if (err == -ENOMEM)
884 return err;
885
886 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
887 qlcnic_disable_multi_tx(adapter);
888 adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
889
890 err = qlcnic_enable_msi_legacy(adapter);
891 if (err)
892 return err;
893 }
894 }
895
896 return 0;
897 }
898
qlcnic_82xx_mq_intrpt(struct qlcnic_adapter * adapter,int op_type)899 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
900 {
901 struct qlcnic_hardware_context *ahw = adapter->ahw;
902 int err, i;
903
904 if (qlcnic_check_multi_tx(adapter) &&
905 !ahw->diag_test &&
906 (adapter->flags & QLCNIC_MSIX_ENABLED)) {
907 ahw->intr_tbl = vzalloc(ahw->num_msix *
908 sizeof(struct qlcnic_intrpt_config));
909 if (!ahw->intr_tbl)
910 return -ENOMEM;
911
912 for (i = 0; i < ahw->num_msix; i++) {
913 ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
914 ahw->intr_tbl[i].id = i;
915 ahw->intr_tbl[i].src = 0;
916 }
917
918 err = qlcnic_82xx_config_intrpt(adapter, 1);
919 if (err)
920 dev_err(&adapter->pdev->dev,
921 "Failed to configure Interrupt for %d vector\n",
922 ahw->num_msix);
923 return err;
924 }
925
926 return 0;
927 }
928
qlcnic_teardown_intr(struct qlcnic_adapter * adapter)929 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
930 {
931 if (adapter->flags & QLCNIC_MSIX_ENABLED)
932 pci_disable_msix(adapter->pdev);
933 if (adapter->flags & QLCNIC_MSI_ENABLED)
934 pci_disable_msi(adapter->pdev);
935
936 kfree(adapter->msix_entries);
937 adapter->msix_entries = NULL;
938
939 if (adapter->ahw->intr_tbl) {
940 vfree(adapter->ahw->intr_tbl);
941 adapter->ahw->intr_tbl = NULL;
942 }
943 }
944
qlcnic_cleanup_pci_map(struct qlcnic_hardware_context * ahw)945 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
946 {
947 if (ahw->pci_base0 != NULL)
948 iounmap(ahw->pci_base0);
949 }
950
qlcnic_get_act_pci_func(struct qlcnic_adapter * adapter)951 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
952 {
953 struct qlcnic_hardware_context *ahw = adapter->ahw;
954 struct qlcnic_pci_info *pci_info;
955 int ret;
956
957 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
958 switch (ahw->port_type) {
959 case QLCNIC_GBE:
960 ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
961 break;
962 case QLCNIC_XGBE:
963 ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
964 break;
965 }
966 return 0;
967 }
968
969 if (ahw->op_mode == QLCNIC_MGMT_FUNC)
970 return 0;
971
972 pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
973 if (!pci_info)
974 return -ENOMEM;
975
976 ret = qlcnic_get_pci_info(adapter, pci_info);
977 kfree(pci_info);
978 return ret;
979 }
980
qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter * adapter)981 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
982 {
983 bool ret = false;
984
985 if (qlcnic_84xx_check(adapter)) {
986 ret = true;
987 } else if (qlcnic_83xx_check(adapter)) {
988 if (adapter->ahw->extra_capability[0] &
989 QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
990 ret = true;
991 else
992 ret = false;
993 }
994
995 return ret;
996 }
997
qlcnic_init_pci_info(struct qlcnic_adapter * adapter)998 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
999 {
1000 struct qlcnic_hardware_context *ahw = adapter->ahw;
1001 struct qlcnic_pci_info *pci_info;
1002 int i, id = 0, ret = 0, j = 0;
1003 u16 act_pci_func;
1004 u8 pfn;
1005
1006 pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
1007 if (!pci_info)
1008 return -ENOMEM;
1009
1010 ret = qlcnic_get_pci_info(adapter, pci_info);
1011 if (ret)
1012 goto err_pci_info;
1013
1014 act_pci_func = ahw->total_nic_func;
1015
1016 adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
1017 act_pci_func, GFP_KERNEL);
1018 if (!adapter->npars) {
1019 ret = -ENOMEM;
1020 goto err_pci_info;
1021 }
1022
1023 adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
1024 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
1025 if (!adapter->eswitch) {
1026 ret = -ENOMEM;
1027 goto err_npars;
1028 }
1029
1030 for (i = 0; i < ahw->max_vnic_func; i++) {
1031 pfn = pci_info[i].id;
1032
1033 if (pfn >= ahw->max_vnic_func) {
1034 ret = QL_STATUS_INVALID_PARAM;
1035 dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
1036 __func__, pfn, ahw->max_vnic_func);
1037 goto err_eswitch;
1038 }
1039
1040 if (!pci_info[i].active ||
1041 (pci_info[i].type != QLCNIC_TYPE_NIC))
1042 continue;
1043
1044 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1045 if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1046 &id))
1047 adapter->npars[j].eswitch_status = true;
1048 else
1049 continue;
1050 } else {
1051 adapter->npars[j].eswitch_status = true;
1052 }
1053
1054 adapter->npars[j].pci_func = pfn;
1055 adapter->npars[j].active = (u8)pci_info[i].active;
1056 adapter->npars[j].type = (u8)pci_info[i].type;
1057 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1058 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1059 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1060
1061 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1062 j++;
1063 }
1064
1065 /* Update eSwitch status for adapters without per port eSwitch
1066 * configuration capability
1067 */
1068 if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1069 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1070 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1071 }
1072
1073 kfree(pci_info);
1074 return 0;
1075
1076 err_eswitch:
1077 kfree(adapter->eswitch);
1078 adapter->eswitch = NULL;
1079 err_npars:
1080 kfree(adapter->npars);
1081 adapter->npars = NULL;
1082 err_pci_info:
1083 kfree(pci_info);
1084
1085 return ret;
1086 }
1087
1088 static int
qlcnic_set_function_modes(struct qlcnic_adapter * adapter)1089 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1090 {
1091 u8 id;
1092 int ret;
1093 u32 data = QLCNIC_MGMT_FUNC;
1094 struct qlcnic_hardware_context *ahw = adapter->ahw;
1095
1096 ret = qlcnic_api_lock(adapter);
1097 if (ret)
1098 goto err_lock;
1099
1100 id = ahw->pci_func;
1101 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1102 data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1103 QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1104 QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1105 qlcnic_api_unlock(adapter);
1106 err_lock:
1107 return ret;
1108 }
1109
qlcnic_check_vf(struct qlcnic_adapter * adapter,const struct pci_device_id * ent)1110 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1111 const struct pci_device_id *ent)
1112 {
1113 u32 op_mode, priv_level;
1114
1115 /* Determine FW API version */
1116 adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1117 QLCNIC_FW_API);
1118
1119 /* Find PCI function number */
1120 qlcnic_get_func_no(adapter);
1121
1122 /* Determine function privilege level */
1123 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1124 if (op_mode == QLC_DEV_DRV_DEFAULT)
1125 priv_level = QLCNIC_MGMT_FUNC;
1126 else
1127 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1128
1129 if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1130 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1131 dev_info(&adapter->pdev->dev,
1132 "HAL Version: %d Non Privileged function\n",
1133 adapter->ahw->fw_hal_version);
1134 adapter->nic_ops = &qlcnic_vf_ops;
1135 } else
1136 adapter->nic_ops = &qlcnic_ops;
1137 }
1138
1139 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1140 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
qlcnic_get_bar_length(u32 dev_id,ulong * bar)1141 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1142 {
1143 switch (dev_id) {
1144 case PCI_DEVICE_ID_QLOGIC_QLE824X:
1145 *bar = QLCNIC_82XX_BAR0_LENGTH;
1146 break;
1147 case PCI_DEVICE_ID_QLOGIC_QLE834X:
1148 case PCI_DEVICE_ID_QLOGIC_QLE8830:
1149 case PCI_DEVICE_ID_QLOGIC_QLE844X:
1150 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1151 case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1152 *bar = QLCNIC_83XX_BAR0_LENGTH;
1153 break;
1154 default:
1155 *bar = 0;
1156 }
1157 }
1158
qlcnic_setup_pci_map(struct pci_dev * pdev,struct qlcnic_hardware_context * ahw)1159 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1160 struct qlcnic_hardware_context *ahw)
1161 {
1162 u32 offset;
1163 void __iomem *mem_ptr0 = NULL;
1164 unsigned long mem_len, pci_len0 = 0, bar0_len;
1165
1166 /* remap phys address */
1167 mem_len = pci_resource_len(pdev, 0);
1168
1169 qlcnic_get_bar_length(pdev->device, &bar0_len);
1170 if (mem_len >= bar0_len) {
1171
1172 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1173 if (mem_ptr0 == NULL) {
1174 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1175 return -EIO;
1176 }
1177 pci_len0 = mem_len;
1178 } else {
1179 return -EIO;
1180 }
1181
1182 dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1183
1184 ahw->pci_base0 = mem_ptr0;
1185 ahw->pci_len0 = pci_len0;
1186 offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1187 qlcnic_get_ioaddr(ahw, offset);
1188
1189 return 0;
1190 }
1191
qlcnic_validate_subsystem_id(struct qlcnic_adapter * adapter,int index)1192 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1193 int index)
1194 {
1195 struct pci_dev *pdev = adapter->pdev;
1196 unsigned short subsystem_vendor;
1197 bool ret = true;
1198
1199 subsystem_vendor = pdev->subsystem_vendor;
1200
1201 if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1202 pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1203 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1204 qlcnic_boards[index].sub_device == pdev->subsystem_device)
1205 ret = true;
1206 else
1207 ret = false;
1208 }
1209
1210 return ret;
1211 }
1212
qlcnic_get_board_name(struct qlcnic_adapter * adapter,char * name)1213 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1214 {
1215 struct pci_dev *pdev = adapter->pdev;
1216 int i, found = 0;
1217
1218 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1219 if (qlcnic_boards[i].vendor == pdev->vendor &&
1220 qlcnic_boards[i].device == pdev->device &&
1221 qlcnic_validate_subsystem_id(adapter, i)) {
1222 found = 1;
1223 break;
1224 }
1225 }
1226
1227 if (!found)
1228 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1229 else
1230 sprintf(name, "%pM: %s" , adapter->mac_addr,
1231 qlcnic_boards[i].short_name);
1232 }
1233
1234 static void
qlcnic_check_options(struct qlcnic_adapter * adapter)1235 qlcnic_check_options(struct qlcnic_adapter *adapter)
1236 {
1237 int err;
1238 u32 fw_major, fw_minor, fw_build, prev_fw_version;
1239 struct pci_dev *pdev = adapter->pdev;
1240 struct qlcnic_hardware_context *ahw = adapter->ahw;
1241 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1242
1243 prev_fw_version = adapter->fw_version;
1244
1245 fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1246 fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1247 fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1248
1249 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1250
1251 err = qlcnic_get_board_info(adapter);
1252 if (err) {
1253 dev_err(&pdev->dev, "Error getting board config info.\n");
1254 return;
1255 }
1256 if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1257 if (fw_dump->tmpl_hdr == NULL ||
1258 adapter->fw_version > prev_fw_version) {
1259 vfree(fw_dump->tmpl_hdr);
1260 if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1261 dev_info(&pdev->dev,
1262 "Supports FW dump capability\n");
1263 }
1264 }
1265
1266 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1267 QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1268
1269 if (adapter->ahw->port_type == QLCNIC_XGBE) {
1270 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1271 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1272 adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1273 } else {
1274 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1275 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1276 }
1277
1278 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1279 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1280
1281 } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1282 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1283 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1284 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1285 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1286 }
1287
1288 adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1289
1290 adapter->num_txd = MAX_CMD_DESCRIPTORS;
1291
1292 adapter->max_rds_rings = MAX_RDS_RINGS;
1293 }
1294
1295 static int
qlcnic_initialize_nic(struct qlcnic_adapter * adapter)1296 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1297 {
1298 struct qlcnic_info nic_info;
1299 int err = 0;
1300
1301 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1302 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1303 if (err)
1304 return err;
1305
1306 adapter->ahw->physical_port = (u8)nic_info.phys_port;
1307 adapter->ahw->switch_mode = nic_info.switch_mode;
1308 adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1309 adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1310 adapter->ahw->capabilities = nic_info.capabilities;
1311
1312 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1313 u32 temp;
1314 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1315 if (err == -EIO)
1316 return err;
1317 adapter->ahw->extra_capability[0] = temp;
1318 } else {
1319 adapter->ahw->extra_capability[0] = 0;
1320 }
1321
1322 adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1323 adapter->ahw->max_mtu = nic_info.max_mtu;
1324
1325 if (adapter->ahw->capabilities & BIT_6) {
1326 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1327 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1328 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1329 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1330
1331 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1332 } else {
1333 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1334 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1335 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1336 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1337 }
1338
1339 return err;
1340 }
1341
qlcnic_set_vlan_config(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1342 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1343 struct qlcnic_esw_func_cfg *esw_cfg)
1344 {
1345 if (esw_cfg->discard_tagged)
1346 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1347 else
1348 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1349
1350 if (esw_cfg->vlan_id) {
1351 adapter->rx_pvid = esw_cfg->vlan_id;
1352 adapter->tx_pvid = esw_cfg->vlan_id;
1353 } else {
1354 adapter->rx_pvid = 0;
1355 adapter->tx_pvid = 0;
1356 }
1357 }
1358
1359 static int
qlcnic_vlan_rx_add(struct net_device * netdev,__be16 proto,u16 vid)1360 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1361 {
1362 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1363 int err;
1364
1365 if (qlcnic_sriov_vf_check(adapter)) {
1366 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1367 if (err) {
1368 netdev_err(netdev,
1369 "Cannot add VLAN filter for VLAN id %d, err=%d",
1370 vid, err);
1371 return err;
1372 }
1373 }
1374
1375 set_bit(vid, adapter->vlans);
1376 return 0;
1377 }
1378
1379 static int
qlcnic_vlan_rx_del(struct net_device * netdev,__be16 proto,u16 vid)1380 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1381 {
1382 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1383 int err;
1384
1385 if (qlcnic_sriov_vf_check(adapter)) {
1386 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1387 if (err) {
1388 netdev_err(netdev,
1389 "Cannot delete VLAN filter for VLAN id %d, err=%d",
1390 vid, err);
1391 return err;
1392 }
1393 }
1394
1395 qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1396 clear_bit(vid, adapter->vlans);
1397 return 0;
1398 }
1399
qlcnic_set_eswitch_port_features(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1400 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1401 struct qlcnic_esw_func_cfg *esw_cfg)
1402 {
1403 adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1404 QLCNIC_PROMISC_DISABLED);
1405
1406 if (esw_cfg->mac_anti_spoof)
1407 adapter->flags |= QLCNIC_MACSPOOF;
1408
1409 if (!esw_cfg->mac_override)
1410 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1411
1412 if (!esw_cfg->promisc_mode)
1413 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1414 }
1415
qlcnic_set_eswitch_port_config(struct qlcnic_adapter * adapter)1416 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1417 {
1418 struct qlcnic_esw_func_cfg esw_cfg;
1419
1420 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1421 return 0;
1422
1423 esw_cfg.pci_func = adapter->ahw->pci_func;
1424 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1425 return -EIO;
1426 qlcnic_set_vlan_config(adapter, &esw_cfg);
1427 qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1428 qlcnic_set_netdev_features(adapter, &esw_cfg);
1429
1430 return 0;
1431 }
1432
qlcnic_set_netdev_features(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1433 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1434 struct qlcnic_esw_func_cfg *esw_cfg)
1435 {
1436 struct net_device *netdev = adapter->netdev;
1437
1438 if (qlcnic_83xx_check(adapter))
1439 return;
1440
1441 adapter->offload_flags = esw_cfg->offload_flags;
1442 adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1443 netdev_update_features(netdev);
1444 adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1445 }
1446
1447 static int
qlcnic_check_eswitch_mode(struct qlcnic_adapter * adapter)1448 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1449 {
1450 u32 op_mode, priv_level;
1451 int err = 0;
1452
1453 err = qlcnic_initialize_nic(adapter);
1454 if (err)
1455 return err;
1456
1457 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1458 return 0;
1459
1460 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1461 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1462
1463 if (op_mode == QLC_DEV_DRV_DEFAULT)
1464 priv_level = QLCNIC_MGMT_FUNC;
1465 else
1466 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1467
1468 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1469 if (priv_level == QLCNIC_MGMT_FUNC) {
1470 adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1471 err = qlcnic_init_pci_info(adapter);
1472 if (err)
1473 return err;
1474 /* Set privilege level for other functions */
1475 qlcnic_set_function_modes(adapter);
1476 dev_info(&adapter->pdev->dev,
1477 "HAL Version: %d, Management function\n",
1478 adapter->ahw->fw_hal_version);
1479 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1480 adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1481 dev_info(&adapter->pdev->dev,
1482 "HAL Version: %d, Privileged function\n",
1483 adapter->ahw->fw_hal_version);
1484 }
1485 } else {
1486 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1487 }
1488
1489 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1490
1491 return err;
1492 }
1493
qlcnic_set_default_offload_settings(struct qlcnic_adapter * adapter)1494 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1495 {
1496 struct qlcnic_esw_func_cfg esw_cfg;
1497 struct qlcnic_npar_info *npar;
1498 u8 i;
1499
1500 if (adapter->need_fw_reset)
1501 return 0;
1502
1503 for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1504 if (!adapter->npars[i].eswitch_status)
1505 continue;
1506
1507 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1508 esw_cfg.pci_func = adapter->npars[i].pci_func;
1509 esw_cfg.mac_override = BIT_0;
1510 esw_cfg.promisc_mode = BIT_0;
1511 if (qlcnic_82xx_check(adapter)) {
1512 esw_cfg.offload_flags = BIT_0;
1513 if (QLCNIC_IS_TSO_CAPABLE(adapter))
1514 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1515 }
1516 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1517 return -EIO;
1518 npar = &adapter->npars[i];
1519 npar->pvid = esw_cfg.vlan_id;
1520 npar->mac_override = esw_cfg.mac_override;
1521 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1522 npar->discard_tagged = esw_cfg.discard_tagged;
1523 npar->promisc_mode = esw_cfg.promisc_mode;
1524 npar->offload_flags = esw_cfg.offload_flags;
1525 }
1526
1527 return 0;
1528 }
1529
1530
1531 static int
qlcnic_reset_eswitch_config(struct qlcnic_adapter * adapter,struct qlcnic_npar_info * npar,int pci_func)1532 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1533 struct qlcnic_npar_info *npar, int pci_func)
1534 {
1535 struct qlcnic_esw_func_cfg esw_cfg;
1536 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1537 esw_cfg.pci_func = pci_func;
1538 esw_cfg.vlan_id = npar->pvid;
1539 esw_cfg.mac_override = npar->mac_override;
1540 esw_cfg.discard_tagged = npar->discard_tagged;
1541 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1542 esw_cfg.offload_flags = npar->offload_flags;
1543 esw_cfg.promisc_mode = npar->promisc_mode;
1544 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1545 return -EIO;
1546
1547 esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1548 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1549 return -EIO;
1550
1551 return 0;
1552 }
1553
qlcnic_reset_npar_config(struct qlcnic_adapter * adapter)1554 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1555 {
1556 int i, err;
1557 struct qlcnic_npar_info *npar;
1558 struct qlcnic_info nic_info;
1559 u8 pci_func;
1560
1561 if (qlcnic_82xx_check(adapter))
1562 if (!adapter->need_fw_reset)
1563 return 0;
1564
1565 /* Set the NPAR config data after FW reset */
1566 for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1567 npar = &adapter->npars[i];
1568 pci_func = npar->pci_func;
1569 if (!adapter->npars[i].eswitch_status)
1570 continue;
1571
1572 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1573 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1574 if (err)
1575 return err;
1576 nic_info.min_tx_bw = npar->min_bw;
1577 nic_info.max_tx_bw = npar->max_bw;
1578 err = qlcnic_set_nic_info(adapter, &nic_info);
1579 if (err)
1580 return err;
1581
1582 if (npar->enable_pm) {
1583 err = qlcnic_config_port_mirroring(adapter,
1584 npar->dest_npar, 1,
1585 pci_func);
1586 if (err)
1587 return err;
1588 }
1589 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1590 if (err)
1591 return err;
1592 }
1593 return 0;
1594 }
1595
qlcnic_check_npar_opertional(struct qlcnic_adapter * adapter)1596 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1597 {
1598 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1599 u32 npar_state;
1600
1601 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1602 return 0;
1603
1604 npar_state = QLC_SHARED_REG_RD32(adapter,
1605 QLCNIC_CRB_DEV_NPAR_STATE);
1606 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1607 msleep(1000);
1608 npar_state = QLC_SHARED_REG_RD32(adapter,
1609 QLCNIC_CRB_DEV_NPAR_STATE);
1610 }
1611 if (!npar_opt_timeo) {
1612 dev_err(&adapter->pdev->dev,
1613 "Waiting for NPAR state to operational timeout\n");
1614 return -EIO;
1615 }
1616 return 0;
1617 }
1618
1619 static int
qlcnic_set_mgmt_operations(struct qlcnic_adapter * adapter)1620 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1621 {
1622 int err;
1623
1624 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1625 adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1626 return 0;
1627
1628 err = qlcnic_set_default_offload_settings(adapter);
1629 if (err)
1630 return err;
1631
1632 err = qlcnic_reset_npar_config(adapter);
1633 if (err)
1634 return err;
1635
1636 qlcnic_dev_set_npar_ready(adapter);
1637
1638 return err;
1639 }
1640
qlcnic_82xx_start_firmware(struct qlcnic_adapter * adapter)1641 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1642 {
1643 int err;
1644
1645 err = qlcnic_can_start_firmware(adapter);
1646 if (err < 0)
1647 return err;
1648 else if (!err)
1649 goto check_fw_status;
1650
1651 if (qlcnic_load_fw_file)
1652 qlcnic_request_firmware(adapter);
1653 else {
1654 err = qlcnic_check_flash_fw_ver(adapter);
1655 if (err)
1656 goto err_out;
1657
1658 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1659 }
1660
1661 err = qlcnic_need_fw_reset(adapter);
1662 if (err == 0)
1663 goto check_fw_status;
1664
1665 err = qlcnic_pinit_from_rom(adapter);
1666 if (err)
1667 goto err_out;
1668
1669 err = qlcnic_load_firmware(adapter);
1670 if (err)
1671 goto err_out;
1672
1673 qlcnic_release_firmware(adapter);
1674 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1675
1676 check_fw_status:
1677 err = qlcnic_check_fw_status(adapter);
1678 if (err)
1679 goto err_out;
1680
1681 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1682 qlcnic_idc_debug_info(adapter, 1);
1683 err = qlcnic_check_eswitch_mode(adapter);
1684 if (err) {
1685 dev_err(&adapter->pdev->dev,
1686 "Memory allocation failed for eswitch\n");
1687 goto err_out;
1688 }
1689 err = qlcnic_set_mgmt_operations(adapter);
1690 if (err)
1691 goto err_out;
1692
1693 qlcnic_check_options(adapter);
1694 adapter->need_fw_reset = 0;
1695
1696 qlcnic_release_firmware(adapter);
1697 return 0;
1698
1699 err_out:
1700 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1701 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1702
1703 qlcnic_release_firmware(adapter);
1704 return err;
1705 }
1706
1707 static int
qlcnic_request_irq(struct qlcnic_adapter * adapter)1708 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1709 {
1710 irq_handler_t handler;
1711 struct qlcnic_host_sds_ring *sds_ring;
1712 struct qlcnic_host_tx_ring *tx_ring;
1713 int err, ring, num_sds_rings;
1714
1715 unsigned long flags = 0;
1716 struct net_device *netdev = adapter->netdev;
1717 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1718
1719 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1720 if (qlcnic_82xx_check(adapter))
1721 handler = qlcnic_tmp_intr;
1722 else
1723 handler = qlcnic_83xx_tmp_intr;
1724 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1725 flags |= IRQF_SHARED;
1726
1727 } else {
1728 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1729 handler = qlcnic_msix_intr;
1730 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1731 handler = qlcnic_msi_intr;
1732 else {
1733 flags |= IRQF_SHARED;
1734 if (qlcnic_82xx_check(adapter))
1735 handler = qlcnic_intr;
1736 else
1737 handler = qlcnic_83xx_intr;
1738 }
1739 }
1740 adapter->irq = netdev->irq;
1741
1742 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1743 if (qlcnic_82xx_check(adapter) ||
1744 (qlcnic_83xx_check(adapter) &&
1745 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1746 num_sds_rings = adapter->drv_sds_rings;
1747 for (ring = 0; ring < num_sds_rings; ring++) {
1748 sds_ring = &recv_ctx->sds_rings[ring];
1749 if (qlcnic_82xx_check(adapter) &&
1750 !qlcnic_check_multi_tx(adapter) &&
1751 (ring == (num_sds_rings - 1))) {
1752 if (!(adapter->flags &
1753 QLCNIC_MSIX_ENABLED))
1754 snprintf(sds_ring->name,
1755 sizeof(sds_ring->name),
1756 "qlcnic");
1757 else
1758 snprintf(sds_ring->name,
1759 sizeof(sds_ring->name),
1760 "%s-tx-0-rx-%d",
1761 netdev->name, ring);
1762 } else {
1763 snprintf(sds_ring->name,
1764 sizeof(sds_ring->name),
1765 "%s-rx-%d",
1766 netdev->name, ring);
1767 }
1768 err = request_irq(sds_ring->irq, handler, flags,
1769 sds_ring->name, sds_ring);
1770 if (err)
1771 return err;
1772 }
1773 }
1774 if ((qlcnic_82xx_check(adapter) &&
1775 qlcnic_check_multi_tx(adapter)) ||
1776 (qlcnic_83xx_check(adapter) &&
1777 (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1778 !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1779 handler = qlcnic_msix_tx_intr;
1780 for (ring = 0; ring < adapter->drv_tx_rings;
1781 ring++) {
1782 tx_ring = &adapter->tx_ring[ring];
1783 snprintf(tx_ring->name, sizeof(tx_ring->name),
1784 "%s-tx-%d", netdev->name, ring);
1785 err = request_irq(tx_ring->irq, handler, flags,
1786 tx_ring->name, tx_ring);
1787 if (err)
1788 return err;
1789 }
1790 }
1791 }
1792 return 0;
1793 }
1794
1795 static void
qlcnic_free_irq(struct qlcnic_adapter * adapter)1796 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1797 {
1798 int ring;
1799 struct qlcnic_host_sds_ring *sds_ring;
1800 struct qlcnic_host_tx_ring *tx_ring;
1801
1802 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1803
1804 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1805 if (qlcnic_82xx_check(adapter) ||
1806 (qlcnic_83xx_check(adapter) &&
1807 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1808 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1809 sds_ring = &recv_ctx->sds_rings[ring];
1810 free_irq(sds_ring->irq, sds_ring);
1811 }
1812 }
1813 if ((qlcnic_83xx_check(adapter) &&
1814 !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1815 (qlcnic_82xx_check(adapter) &&
1816 qlcnic_check_multi_tx(adapter))) {
1817 for (ring = 0; ring < adapter->drv_tx_rings;
1818 ring++) {
1819 tx_ring = &adapter->tx_ring[ring];
1820 if (tx_ring->irq)
1821 free_irq(tx_ring->irq, tx_ring);
1822 }
1823 }
1824 }
1825 }
1826
qlcnic_get_lro_mss_capability(struct qlcnic_adapter * adapter)1827 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1828 {
1829 u32 capab = 0;
1830
1831 if (qlcnic_82xx_check(adapter)) {
1832 if (adapter->ahw->extra_capability[0] &
1833 QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1834 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1835 } else {
1836 capab = adapter->ahw->capabilities;
1837 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1838 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1839 }
1840 }
1841
qlcnic_config_def_intr_coalesce(struct qlcnic_adapter * adapter)1842 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1843 {
1844 struct qlcnic_hardware_context *ahw = adapter->ahw;
1845 int err;
1846
1847 /* Initialize interrupt coalesce parameters */
1848 ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1849
1850 if (qlcnic_83xx_check(adapter)) {
1851 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1852 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1853 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1854 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1855 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1856
1857 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1858 } else {
1859 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1860 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1861 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1862
1863 err = qlcnic_82xx_set_rx_coalesce(adapter);
1864 }
1865
1866 return err;
1867 }
1868
__qlcnic_up(struct qlcnic_adapter * adapter,struct net_device * netdev)1869 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1870 {
1871 int ring;
1872 struct qlcnic_host_rds_ring *rds_ring;
1873
1874 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1875 return -EIO;
1876
1877 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1878 return 0;
1879
1880 if (qlcnic_set_eswitch_port_config(adapter))
1881 return -EIO;
1882
1883 qlcnic_get_lro_mss_capability(adapter);
1884
1885 if (qlcnic_fw_create_ctx(adapter))
1886 return -EIO;
1887
1888 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1889 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1890 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1891 }
1892
1893 qlcnic_set_multi(netdev);
1894 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1895
1896 adapter->ahw->linkup = 0;
1897
1898 if (adapter->drv_sds_rings > 1)
1899 qlcnic_config_rss(adapter, 1);
1900
1901 qlcnic_config_def_intr_coalesce(adapter);
1902
1903 if (netdev->features & NETIF_F_LRO)
1904 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1905
1906 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1907 qlcnic_napi_enable(adapter);
1908
1909 qlcnic_linkevent_request(adapter, 1);
1910
1911 adapter->ahw->reset_context = 0;
1912 netif_tx_start_all_queues(netdev);
1913 return 0;
1914 }
1915
qlcnic_up(struct qlcnic_adapter * adapter,struct net_device * netdev)1916 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1917 {
1918 int err = 0;
1919
1920 rtnl_lock();
1921 if (netif_running(netdev))
1922 err = __qlcnic_up(adapter, netdev);
1923 rtnl_unlock();
1924
1925 return err;
1926 }
1927
__qlcnic_down(struct qlcnic_adapter * adapter,struct net_device * netdev)1928 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1929 {
1930 int ring;
1931
1932 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1933 return;
1934
1935 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1936 return;
1937
1938 smp_mb();
1939 netif_carrier_off(netdev);
1940 adapter->ahw->linkup = 0;
1941 netif_tx_disable(netdev);
1942
1943 qlcnic_free_mac_list(adapter);
1944
1945 if (adapter->fhash.fnum)
1946 qlcnic_delete_lb_filters(adapter);
1947
1948 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1949 if (qlcnic_sriov_vf_check(adapter))
1950 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1951
1952 qlcnic_napi_disable(adapter);
1953
1954 qlcnic_fw_destroy_ctx(adapter);
1955 adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1956
1957 qlcnic_reset_rx_buffers_list(adapter);
1958
1959 for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1960 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1961 }
1962
1963 /* Usage: During suspend and firmware recovery module */
1964
qlcnic_down(struct qlcnic_adapter * adapter,struct net_device * netdev)1965 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1966 {
1967 rtnl_lock();
1968 if (netif_running(netdev))
1969 __qlcnic_down(adapter, netdev);
1970 rtnl_unlock();
1971
1972 }
1973
1974 int
qlcnic_attach(struct qlcnic_adapter * adapter)1975 qlcnic_attach(struct qlcnic_adapter *adapter)
1976 {
1977 struct net_device *netdev = adapter->netdev;
1978 struct pci_dev *pdev = adapter->pdev;
1979 int err;
1980
1981 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1982 return 0;
1983
1984 err = qlcnic_napi_add(adapter, netdev);
1985 if (err)
1986 return err;
1987
1988 err = qlcnic_alloc_sw_resources(adapter);
1989 if (err) {
1990 dev_err(&pdev->dev, "Error in setting sw resources\n");
1991 goto err_out_napi_del;
1992 }
1993
1994 err = qlcnic_alloc_hw_resources(adapter);
1995 if (err) {
1996 dev_err(&pdev->dev, "Error in setting hw resources\n");
1997 goto err_out_free_sw;
1998 }
1999
2000 err = qlcnic_request_irq(adapter);
2001 if (err) {
2002 dev_err(&pdev->dev, "failed to setup interrupt\n");
2003 goto err_out_free_hw;
2004 }
2005
2006 qlcnic_create_sysfs_entries(adapter);
2007
2008 #ifdef CONFIG_QLCNIC_VXLAN
2009 if (qlcnic_encap_rx_offload(adapter))
2010 vxlan_get_rx_port(netdev);
2011 #endif
2012
2013 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
2014 return 0;
2015
2016 err_out_free_hw:
2017 qlcnic_free_hw_resources(adapter);
2018 err_out_free_sw:
2019 qlcnic_free_sw_resources(adapter);
2020 err_out_napi_del:
2021 qlcnic_napi_del(adapter);
2022 return err;
2023 }
2024
qlcnic_detach(struct qlcnic_adapter * adapter)2025 void qlcnic_detach(struct qlcnic_adapter *adapter)
2026 {
2027 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2028 return;
2029
2030 qlcnic_remove_sysfs_entries(adapter);
2031
2032 qlcnic_free_hw_resources(adapter);
2033 qlcnic_release_rx_buffers(adapter);
2034 qlcnic_free_irq(adapter);
2035 qlcnic_napi_del(adapter);
2036 qlcnic_free_sw_resources(adapter);
2037
2038 adapter->is_up = 0;
2039 }
2040
qlcnic_diag_free_res(struct net_device * netdev,int drv_sds_rings)2041 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2042 {
2043 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2044 struct qlcnic_host_sds_ring *sds_ring;
2045 int drv_tx_rings = adapter->drv_tx_rings;
2046 int ring;
2047
2048 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2049 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2050 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2051 sds_ring = &adapter->recv_ctx->sds_rings[ring];
2052 qlcnic_disable_sds_intr(adapter, sds_ring);
2053 }
2054 }
2055
2056 qlcnic_fw_destroy_ctx(adapter);
2057
2058 qlcnic_detach(adapter);
2059
2060 adapter->ahw->diag_test = 0;
2061 adapter->drv_sds_rings = drv_sds_rings;
2062 adapter->drv_tx_rings = drv_tx_rings;
2063
2064 if (qlcnic_attach(adapter))
2065 goto out;
2066
2067 if (netif_running(netdev))
2068 __qlcnic_up(adapter, netdev);
2069 out:
2070 netif_device_attach(netdev);
2071 }
2072
qlcnic_alloc_adapter_resources(struct qlcnic_adapter * adapter)2073 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2074 {
2075 struct qlcnic_hardware_context *ahw = adapter->ahw;
2076 int err = 0;
2077
2078 adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2079 GFP_KERNEL);
2080 if (!adapter->recv_ctx) {
2081 err = -ENOMEM;
2082 goto err_out;
2083 }
2084
2085 if (qlcnic_83xx_check(adapter)) {
2086 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2087 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
2088 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
2089 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2090 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2091 } else {
2092 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
2093 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2094 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2095 }
2096
2097 /* clear stats */
2098 memset(&adapter->stats, 0, sizeof(adapter->stats));
2099 err_out:
2100 return err;
2101 }
2102
qlcnic_free_adapter_resources(struct qlcnic_adapter * adapter)2103 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2104 {
2105 struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
2106
2107 kfree(adapter->recv_ctx);
2108 adapter->recv_ctx = NULL;
2109
2110 if (fw_dump->tmpl_hdr) {
2111 vfree(fw_dump->tmpl_hdr);
2112 fw_dump->tmpl_hdr = NULL;
2113 }
2114
2115 if (fw_dump->dma_buffer) {
2116 dma_free_coherent(&adapter->pdev->dev, QLC_PEX_DMA_READ_SIZE,
2117 fw_dump->dma_buffer, fw_dump->phys_addr);
2118 fw_dump->dma_buffer = NULL;
2119 }
2120
2121 kfree(adapter->ahw->reset.buff);
2122 adapter->ahw->fw_dump.tmpl_hdr = NULL;
2123 }
2124
qlcnic_diag_alloc_res(struct net_device * netdev,int test)2125 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2126 {
2127 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2128 struct qlcnic_host_sds_ring *sds_ring;
2129 struct qlcnic_host_rds_ring *rds_ring;
2130 int ring;
2131 int ret;
2132
2133 netif_device_detach(netdev);
2134
2135 if (netif_running(netdev))
2136 __qlcnic_down(adapter, netdev);
2137
2138 qlcnic_detach(adapter);
2139
2140 adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2141 adapter->ahw->diag_test = test;
2142 adapter->ahw->linkup = 0;
2143
2144 ret = qlcnic_attach(adapter);
2145 if (ret) {
2146 netif_device_attach(netdev);
2147 return ret;
2148 }
2149
2150 ret = qlcnic_fw_create_ctx(adapter);
2151 if (ret) {
2152 qlcnic_detach(adapter);
2153 netif_device_attach(netdev);
2154 return ret;
2155 }
2156
2157 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2158 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2159 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2160 }
2161
2162 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2163 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2164 sds_ring = &adapter->recv_ctx->sds_rings[ring];
2165 qlcnic_enable_sds_intr(adapter, sds_ring);
2166 }
2167 }
2168
2169 if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2170 adapter->ahw->loopback_state = 0;
2171 qlcnic_linkevent_request(adapter, 1);
2172 }
2173
2174 set_bit(__QLCNIC_DEV_UP, &adapter->state);
2175
2176 return 0;
2177 }
2178
2179 /* Reset context in hardware only */
2180 static int
qlcnic_reset_hw_context(struct qlcnic_adapter * adapter)2181 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2182 {
2183 struct net_device *netdev = adapter->netdev;
2184
2185 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2186 return -EBUSY;
2187
2188 netif_device_detach(netdev);
2189
2190 qlcnic_down(adapter, netdev);
2191
2192 qlcnic_up(adapter, netdev);
2193
2194 netif_device_attach(netdev);
2195
2196 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2197 netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2198 return 0;
2199 }
2200
2201 int
qlcnic_reset_context(struct qlcnic_adapter * adapter)2202 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2203 {
2204 int err = 0;
2205 struct net_device *netdev = adapter->netdev;
2206
2207 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2208 return -EBUSY;
2209
2210 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2211
2212 netif_device_detach(netdev);
2213
2214 if (netif_running(netdev))
2215 __qlcnic_down(adapter, netdev);
2216
2217 qlcnic_detach(adapter);
2218
2219 if (netif_running(netdev)) {
2220 err = qlcnic_attach(adapter);
2221 if (!err) {
2222 __qlcnic_up(adapter, netdev);
2223 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2224 }
2225 }
2226
2227 netif_device_attach(netdev);
2228 }
2229
2230 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2231 return err;
2232 }
2233
qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter * adapter)2234 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2235 {
2236 struct qlcnic_hardware_context *ahw = adapter->ahw;
2237 u16 act_pci_fn = ahw->total_nic_func;
2238 u16 count;
2239
2240 ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2241 if (act_pci_fn <= 2)
2242 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2243 act_pci_fn;
2244 else
2245 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2246 act_pci_fn;
2247 ahw->max_uc_count = count;
2248 }
2249
qlcnic_set_real_num_queues(struct qlcnic_adapter * adapter,u8 tx_queues,u8 rx_queues)2250 static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
2251 u8 tx_queues, u8 rx_queues)
2252 {
2253 struct net_device *netdev = adapter->netdev;
2254 int err = 0;
2255
2256 if (tx_queues) {
2257 err = netif_set_real_num_tx_queues(netdev, tx_queues);
2258 if (err) {
2259 netdev_err(netdev, "failed to set %d Tx queues\n",
2260 tx_queues);
2261 return err;
2262 }
2263 }
2264
2265 if (rx_queues) {
2266 err = netif_set_real_num_rx_queues(netdev, rx_queues);
2267 if (err)
2268 netdev_err(netdev, "failed to set %d Rx queues\n",
2269 rx_queues);
2270 }
2271
2272 return err;
2273 }
2274
2275 int
qlcnic_setup_netdev(struct qlcnic_adapter * adapter,struct net_device * netdev,int pci_using_dac)2276 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2277 int pci_using_dac)
2278 {
2279 int err;
2280 struct pci_dev *pdev = adapter->pdev;
2281
2282 adapter->rx_csum = 1;
2283 adapter->ahw->mc_enabled = 0;
2284 qlcnic_set_mac_filter_count(adapter);
2285
2286 netdev->netdev_ops = &qlcnic_netdev_ops;
2287 netdev->watchdog_timeo = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2288
2289 qlcnic_change_mtu(netdev, netdev->mtu);
2290
2291 netdev->ethtool_ops = (qlcnic_sriov_vf_check(adapter)) ?
2292 &qlcnic_sriov_vf_ethtool_ops : &qlcnic_ethtool_ops;
2293
2294 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2295 NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2296 NETIF_F_HW_VLAN_CTAG_RX);
2297 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2298 NETIF_F_IPV6_CSUM);
2299
2300 if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2301 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2302 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2303 }
2304
2305 if (pci_using_dac) {
2306 netdev->features |= NETIF_F_HIGHDMA;
2307 netdev->vlan_features |= NETIF_F_HIGHDMA;
2308 }
2309
2310 if (qlcnic_vlan_tx_check(adapter))
2311 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2312
2313 if (qlcnic_sriov_vf_check(adapter))
2314 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2315
2316 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2317 netdev->features |= NETIF_F_LRO;
2318
2319 if (qlcnic_encap_tx_offload(adapter)) {
2320 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2321
2322 /* encapsulation Tx offload supported by Adapter */
2323 netdev->hw_enc_features = NETIF_F_IP_CSUM |
2324 NETIF_F_GSO_UDP_TUNNEL |
2325 NETIF_F_TSO |
2326 NETIF_F_TSO6;
2327 }
2328
2329 if (qlcnic_encap_rx_offload(adapter))
2330 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2331
2332 netdev->hw_features = netdev->features;
2333 netdev->priv_flags |= IFF_UNICAST_FLT;
2334 netdev->irq = adapter->msix_entries[0].vector;
2335
2336 err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings,
2337 adapter->drv_sds_rings);
2338 if (err)
2339 return err;
2340
2341 qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2342
2343 err = register_netdev(netdev);
2344 if (err) {
2345 dev_err(&pdev->dev, "failed to register net device\n");
2346 return err;
2347 }
2348
2349 return 0;
2350 }
2351
qlcnic_set_dma_mask(struct pci_dev * pdev,int * pci_using_dac)2352 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2353 {
2354 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2355 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2356 *pci_using_dac = 1;
2357 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2358 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2359 *pci_using_dac = 0;
2360 else {
2361 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2362 return -EIO;
2363 }
2364
2365 return 0;
2366 }
2367
qlcnic_free_tx_rings(struct qlcnic_adapter * adapter)2368 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2369 {
2370 int ring;
2371 struct qlcnic_host_tx_ring *tx_ring;
2372
2373 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2374 tx_ring = &adapter->tx_ring[ring];
2375 if (tx_ring) {
2376 vfree(tx_ring->cmd_buf_arr);
2377 tx_ring->cmd_buf_arr = NULL;
2378 }
2379 }
2380 kfree(adapter->tx_ring);
2381 }
2382
qlcnic_alloc_tx_rings(struct qlcnic_adapter * adapter,struct net_device * netdev)2383 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2384 struct net_device *netdev)
2385 {
2386 int ring, vector, index;
2387 struct qlcnic_host_tx_ring *tx_ring;
2388 struct qlcnic_cmd_buffer *cmd_buf_arr;
2389
2390 tx_ring = kcalloc(adapter->drv_tx_rings,
2391 sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2392 if (tx_ring == NULL)
2393 return -ENOMEM;
2394
2395 adapter->tx_ring = tx_ring;
2396
2397 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2398 tx_ring = &adapter->tx_ring[ring];
2399 tx_ring->num_desc = adapter->num_txd;
2400 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2401 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2402 if (cmd_buf_arr == NULL) {
2403 qlcnic_free_tx_rings(adapter);
2404 return -ENOMEM;
2405 }
2406 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
2407 tx_ring->cmd_buf_arr = cmd_buf_arr;
2408 spin_lock_init(&tx_ring->tx_clean_lock);
2409 }
2410
2411 if (qlcnic_83xx_check(adapter) ||
2412 (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2413 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2414 tx_ring = &adapter->tx_ring[ring];
2415 tx_ring->adapter = adapter;
2416 if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2417 index = adapter->drv_sds_rings + ring;
2418 vector = adapter->msix_entries[index].vector;
2419 tx_ring->irq = vector;
2420 }
2421 }
2422 }
2423
2424 return 0;
2425 }
2426
qlcnic_set_drv_version(struct qlcnic_adapter * adapter)2427 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2428 {
2429 struct qlcnic_hardware_context *ahw = adapter->ahw;
2430 u32 fw_cmd = 0;
2431
2432 if (qlcnic_82xx_check(adapter))
2433 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2434 else if (qlcnic_83xx_check(adapter))
2435 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2436
2437 if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2438 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2439 }
2440
2441 /* Reset firmware API lock */
qlcnic_reset_api_lock(struct qlcnic_adapter * adapter)2442 static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2443 {
2444 qlcnic_api_lock(adapter);
2445 qlcnic_api_unlock(adapter);
2446 }
2447
2448
2449 static int
qlcnic_probe(struct pci_dev * pdev,const struct pci_device_id * ent)2450 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2451 {
2452 struct net_device *netdev = NULL;
2453 struct qlcnic_adapter *adapter = NULL;
2454 struct qlcnic_hardware_context *ahw;
2455 int err, pci_using_dac = -1;
2456 char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2457
2458 err = pci_enable_device(pdev);
2459 if (err)
2460 return err;
2461
2462 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2463 err = -ENODEV;
2464 goto err_out_disable_pdev;
2465 }
2466
2467 err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2468 if (err)
2469 goto err_out_disable_pdev;
2470
2471 err = pci_request_regions(pdev, qlcnic_driver_name);
2472 if (err)
2473 goto err_out_disable_pdev;
2474
2475 pci_set_master(pdev);
2476 pci_enable_pcie_error_reporting(pdev);
2477
2478 ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2479 if (!ahw) {
2480 err = -ENOMEM;
2481 goto err_out_free_res;
2482 }
2483
2484 switch (ent->device) {
2485 case PCI_DEVICE_ID_QLOGIC_QLE824X:
2486 ahw->hw_ops = &qlcnic_hw_ops;
2487 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2488 break;
2489 case PCI_DEVICE_ID_QLOGIC_QLE834X:
2490 case PCI_DEVICE_ID_QLOGIC_QLE8830:
2491 case PCI_DEVICE_ID_QLOGIC_QLE844X:
2492 qlcnic_83xx_register_map(ahw);
2493 break;
2494 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2495 case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2496 qlcnic_sriov_vf_register_map(ahw);
2497 break;
2498 default:
2499 goto err_out_free_hw_res;
2500 }
2501
2502 err = qlcnic_setup_pci_map(pdev, ahw);
2503 if (err)
2504 goto err_out_free_hw_res;
2505
2506 netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2507 QLCNIC_MAX_TX_RINGS);
2508 if (!netdev) {
2509 err = -ENOMEM;
2510 goto err_out_iounmap;
2511 }
2512
2513 SET_NETDEV_DEV(netdev, &pdev->dev);
2514
2515 adapter = netdev_priv(netdev);
2516 adapter->netdev = netdev;
2517 adapter->pdev = pdev;
2518 adapter->ahw = ahw;
2519
2520 adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2521 if (adapter->qlcnic_wq == NULL) {
2522 err = -ENOMEM;
2523 dev_err(&pdev->dev, "Failed to create workqueue\n");
2524 goto err_out_free_netdev;
2525 }
2526
2527 err = qlcnic_alloc_adapter_resources(adapter);
2528 if (err)
2529 goto err_out_free_wq;
2530
2531 adapter->dev_rst_time = jiffies;
2532 ahw->revision_id = pdev->revision;
2533 ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2534 if (qlcnic_mac_learn == FDB_MAC_LEARN)
2535 adapter->fdb_mac_learn = true;
2536 else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2537 adapter->drv_mac_learn = true;
2538
2539 rwlock_init(&adapter->ahw->crb_lock);
2540 mutex_init(&adapter->ahw->mem_lock);
2541
2542 INIT_LIST_HEAD(&adapter->mac_list);
2543
2544 qlcnic_register_dcb(adapter);
2545
2546 if (qlcnic_82xx_check(adapter)) {
2547 qlcnic_check_vf(adapter, ent);
2548 adapter->portnum = adapter->ahw->pci_func;
2549 qlcnic_reset_api_lock(adapter);
2550 err = qlcnic_start_firmware(adapter);
2551 if (err) {
2552 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2553 "\t\tIf reboot doesn't help, try flashing the card\n");
2554 goto err_out_maintenance_mode;
2555 }
2556
2557 /* compute and set default and max tx/sds rings */
2558 if (adapter->ahw->msix_supported) {
2559 if (qlcnic_check_multi_tx_capability(adapter) == 1)
2560 qlcnic_set_tx_ring_count(adapter,
2561 QLCNIC_SINGLE_RING);
2562 else
2563 qlcnic_set_tx_ring_count(adapter,
2564 QLCNIC_DEF_TX_RINGS);
2565 qlcnic_set_sds_ring_count(adapter,
2566 QLCNIC_DEF_SDS_RINGS);
2567 } else {
2568 qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2569 qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2570 }
2571
2572 err = qlcnic_setup_idc_param(adapter);
2573 if (err)
2574 goto err_out_free_hw;
2575
2576 adapter->flags |= QLCNIC_NEED_FLR;
2577
2578 } else if (qlcnic_83xx_check(adapter)) {
2579 qlcnic_83xx_check_vf(adapter, ent);
2580 adapter->portnum = adapter->ahw->pci_func;
2581 err = qlcnic_83xx_init(adapter, pci_using_dac);
2582 if (err) {
2583 switch (err) {
2584 case -ENOTRECOVERABLE:
2585 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2586 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2587 goto err_out_free_hw;
2588 case -ENOMEM:
2589 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2590 goto err_out_free_hw;
2591 case -EOPNOTSUPP:
2592 dev_err(&pdev->dev, "Adapter initialization failed\n");
2593 goto err_out_free_hw;
2594 default:
2595 dev_err(&pdev->dev, "Adapter initialization failed. Driver will load in maintenance mode to recover the adapter using the application\n");
2596 goto err_out_maintenance_mode;
2597 }
2598 }
2599
2600 if (qlcnic_sriov_vf_check(adapter))
2601 return 0;
2602 } else {
2603 dev_err(&pdev->dev,
2604 "%s: failed. Please Reboot\n", __func__);
2605 err = -ENODEV;
2606 goto err_out_free_hw;
2607 }
2608
2609 if (qlcnic_read_mac_addr(adapter))
2610 dev_warn(&pdev->dev, "failed to read mac addr\n");
2611
2612 qlcnic_read_phys_port_id(adapter);
2613
2614 if (adapter->portnum == 0) {
2615 qlcnic_get_board_name(adapter, board_name);
2616
2617 pr_info("%s: %s Board Chip rev 0x%x\n",
2618 module_name(THIS_MODULE),
2619 board_name, adapter->ahw->revision_id);
2620 }
2621
2622 if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2623 !!qlcnic_use_msi)
2624 dev_warn(&pdev->dev,
2625 "Device does not support MSI interrupts\n");
2626
2627 if (qlcnic_82xx_check(adapter)) {
2628 qlcnic_dcb_enable(adapter->dcb);
2629 qlcnic_dcb_get_info(adapter->dcb);
2630 err = qlcnic_setup_intr(adapter);
2631
2632 if (err) {
2633 dev_err(&pdev->dev, "Failed to setup interrupt\n");
2634 goto err_out_disable_msi;
2635 }
2636 }
2637
2638 err = qlcnic_get_act_pci_func(adapter);
2639 if (err)
2640 goto err_out_disable_mbx_intr;
2641
2642 if (adapter->portnum == 0)
2643 qlcnic_set_drv_version(adapter);
2644
2645 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2646 if (err)
2647 goto err_out_disable_mbx_intr;
2648
2649 pci_set_drvdata(pdev, adapter);
2650
2651 if (qlcnic_82xx_check(adapter))
2652 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2653 FW_POLL_DELAY);
2654
2655 switch (adapter->ahw->port_type) {
2656 case QLCNIC_GBE:
2657 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2658 adapter->netdev->name);
2659 break;
2660 case QLCNIC_XGBE:
2661 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2662 adapter->netdev->name);
2663 break;
2664 }
2665
2666 if (adapter->drv_mac_learn)
2667 qlcnic_alloc_lb_filters_mem(adapter);
2668
2669 qlcnic_add_sysfs(adapter);
2670 qlcnic_register_hwmon_dev(adapter);
2671 return 0;
2672
2673 err_out_disable_mbx_intr:
2674 if (qlcnic_83xx_check(adapter))
2675 qlcnic_83xx_free_mbx_intr(adapter);
2676
2677 err_out_disable_msi:
2678 qlcnic_teardown_intr(adapter);
2679 qlcnic_cancel_idc_work(adapter);
2680 qlcnic_clr_all_drv_state(adapter, 0);
2681
2682 err_out_free_hw:
2683 qlcnic_free_adapter_resources(adapter);
2684
2685 err_out_free_wq:
2686 destroy_workqueue(adapter->qlcnic_wq);
2687
2688 err_out_free_netdev:
2689 free_netdev(netdev);
2690
2691 err_out_iounmap:
2692 qlcnic_cleanup_pci_map(ahw);
2693
2694 err_out_free_hw_res:
2695 kfree(ahw);
2696
2697 err_out_free_res:
2698 pci_release_regions(pdev);
2699
2700 err_out_disable_pdev:
2701 pci_disable_device(pdev);
2702 return err;
2703
2704 err_out_maintenance_mode:
2705 set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2706 netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2707 netdev->ethtool_ops = &qlcnic_ethtool_failed_ops;
2708 ahw->port_type = QLCNIC_XGBE;
2709
2710 if (qlcnic_83xx_check(adapter))
2711 adapter->tgt_status_reg = NULL;
2712 else
2713 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2714
2715 err = register_netdev(netdev);
2716
2717 if (err) {
2718 dev_err(&pdev->dev, "Failed to register net device\n");
2719 qlcnic_clr_all_drv_state(adapter, 0);
2720 goto err_out_free_hw;
2721 }
2722
2723 pci_set_drvdata(pdev, adapter);
2724 qlcnic_add_sysfs(adapter);
2725
2726 return 0;
2727 }
2728
qlcnic_remove(struct pci_dev * pdev)2729 static void qlcnic_remove(struct pci_dev *pdev)
2730 {
2731 struct qlcnic_adapter *adapter;
2732 struct net_device *netdev;
2733 struct qlcnic_hardware_context *ahw;
2734
2735 adapter = pci_get_drvdata(pdev);
2736 if (adapter == NULL)
2737 return;
2738
2739 netdev = adapter->netdev;
2740
2741 qlcnic_cancel_idc_work(adapter);
2742 qlcnic_sriov_pf_disable(adapter);
2743 ahw = adapter->ahw;
2744
2745 unregister_netdev(netdev);
2746 qlcnic_sriov_cleanup(adapter);
2747
2748 if (qlcnic_83xx_check(adapter)) {
2749 qlcnic_83xx_initialize_nic(adapter, 0);
2750 cancel_delayed_work_sync(&adapter->idc_aen_work);
2751 qlcnic_83xx_free_mbx_intr(adapter);
2752 qlcnic_83xx_detach_mailbox_work(adapter);
2753 qlcnic_83xx_free_mailbox(ahw->mailbox);
2754 kfree(ahw->fw_info);
2755 }
2756
2757 qlcnic_dcb_free(adapter->dcb);
2758 qlcnic_detach(adapter);
2759 kfree(adapter->npars);
2760 kfree(adapter->eswitch);
2761
2762 if (qlcnic_82xx_check(adapter))
2763 qlcnic_clr_all_drv_state(adapter, 0);
2764
2765 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2766
2767 qlcnic_free_lb_filters_mem(adapter);
2768
2769 qlcnic_teardown_intr(adapter);
2770
2771 qlcnic_remove_sysfs(adapter);
2772
2773 qlcnic_unregister_hwmon_dev(adapter);
2774
2775 qlcnic_cleanup_pci_map(adapter->ahw);
2776
2777 qlcnic_release_firmware(adapter);
2778
2779 pci_disable_pcie_error_reporting(pdev);
2780 pci_release_regions(pdev);
2781 pci_disable_device(pdev);
2782
2783 if (adapter->qlcnic_wq) {
2784 destroy_workqueue(adapter->qlcnic_wq);
2785 adapter->qlcnic_wq = NULL;
2786 }
2787
2788 qlcnic_free_adapter_resources(adapter);
2789 kfree(ahw);
2790 free_netdev(netdev);
2791 }
2792
qlcnic_shutdown(struct pci_dev * pdev)2793 static void qlcnic_shutdown(struct pci_dev *pdev)
2794 {
2795 if (__qlcnic_shutdown(pdev))
2796 return;
2797
2798 pci_disable_device(pdev);
2799 }
2800
2801 #ifdef CONFIG_PM
qlcnic_suspend(struct pci_dev * pdev,pm_message_t state)2802 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2803 {
2804 int retval;
2805
2806 retval = __qlcnic_shutdown(pdev);
2807 if (retval)
2808 return retval;
2809
2810 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2811 return 0;
2812 }
2813
qlcnic_resume(struct pci_dev * pdev)2814 static int qlcnic_resume(struct pci_dev *pdev)
2815 {
2816 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2817 int err;
2818
2819 err = pci_enable_device(pdev);
2820 if (err)
2821 return err;
2822
2823 pci_set_power_state(pdev, PCI_D0);
2824 pci_set_master(pdev);
2825 pci_restore_state(pdev);
2826
2827 return __qlcnic_resume(adapter);
2828 }
2829 #endif
2830
qlcnic_open(struct net_device * netdev)2831 static int qlcnic_open(struct net_device *netdev)
2832 {
2833 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2834 int err;
2835
2836 if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2837 netdev_err(netdev, "%s: Device is in non-operational state\n",
2838 __func__);
2839
2840 return -EIO;
2841 }
2842
2843 netif_carrier_off(netdev);
2844
2845 err = qlcnic_attach(adapter);
2846 if (err)
2847 return err;
2848
2849 err = __qlcnic_up(adapter, netdev);
2850 if (err)
2851 qlcnic_detach(adapter);
2852
2853 return err;
2854 }
2855
2856 /*
2857 * qlcnic_close - Disables a network interface entry point
2858 */
qlcnic_close(struct net_device * netdev)2859 static int qlcnic_close(struct net_device *netdev)
2860 {
2861 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2862
2863 __qlcnic_down(adapter, netdev);
2864
2865 return 0;
2866 }
2867
2868 #define QLCNIC_VF_LB_BUCKET_SIZE 1
2869
qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter * adapter)2870 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2871 {
2872 void *head;
2873 int i;
2874 struct net_device *netdev = adapter->netdev;
2875 u32 filter_size = 0;
2876 u16 act_pci_func = 0;
2877
2878 if (adapter->fhash.fmax && adapter->fhash.fhead)
2879 return;
2880
2881 act_pci_func = adapter->ahw->total_nic_func;
2882 spin_lock_init(&adapter->mac_learn_lock);
2883 spin_lock_init(&adapter->rx_mac_learn_lock);
2884
2885 if (qlcnic_sriov_vf_check(adapter)) {
2886 filter_size = QLCNIC_83XX_SRIOV_VF_MAX_MAC - 1;
2887 adapter->fhash.fbucket_size = QLCNIC_VF_LB_BUCKET_SIZE;
2888 } else if (qlcnic_82xx_check(adapter)) {
2889 filter_size = QLCNIC_LB_MAX_FILTERS;
2890 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2891 } else {
2892 filter_size = QLC_83XX_LB_MAX_FILTERS;
2893 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2894 }
2895
2896 head = kcalloc(adapter->fhash.fbucket_size,
2897 sizeof(struct hlist_head), GFP_ATOMIC);
2898
2899 if (!head)
2900 return;
2901
2902 adapter->fhash.fmax = (filter_size / act_pci_func);
2903 adapter->fhash.fhead = head;
2904
2905 netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2906 act_pci_func, adapter->fhash.fmax);
2907
2908 for (i = 0; i < adapter->fhash.fbucket_size; i++)
2909 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2910
2911 adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2912
2913 head = kcalloc(adapter->rx_fhash.fbucket_size,
2914 sizeof(struct hlist_head), GFP_ATOMIC);
2915
2916 if (!head)
2917 return;
2918
2919 adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2920 adapter->rx_fhash.fhead = head;
2921
2922 for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2923 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2924 }
2925
qlcnic_free_lb_filters_mem(struct qlcnic_adapter * adapter)2926 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2927 {
2928 if (adapter->fhash.fmax)
2929 kfree(adapter->fhash.fhead);
2930
2931 adapter->fhash.fhead = NULL;
2932 adapter->fhash.fmax = 0;
2933
2934 if (adapter->rx_fhash.fmax)
2935 kfree(adapter->rx_fhash.fhead);
2936
2937 adapter->rx_fhash.fmax = 0;
2938 adapter->rx_fhash.fhead = NULL;
2939 }
2940
qlcnic_check_temp(struct qlcnic_adapter * adapter)2941 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2942 {
2943 struct net_device *netdev = adapter->netdev;
2944 u32 temp_state, temp_val, temp = 0;
2945 int rv = 0;
2946
2947 if (qlcnic_83xx_check(adapter))
2948 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2949
2950 if (qlcnic_82xx_check(adapter))
2951 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2952
2953 temp_state = qlcnic_get_temp_state(temp);
2954 temp_val = qlcnic_get_temp_val(temp);
2955
2956 if (temp_state == QLCNIC_TEMP_PANIC) {
2957 dev_err(&netdev->dev,
2958 "Device temperature %d degrees C exceeds"
2959 " maximum allowed. Hardware has been shut down.\n",
2960 temp_val);
2961 rv = 1;
2962 } else if (temp_state == QLCNIC_TEMP_WARN) {
2963 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2964 dev_err(&netdev->dev,
2965 "Device temperature %d degrees C "
2966 "exceeds operating range."
2967 " Immediate action needed.\n",
2968 temp_val);
2969 }
2970 } else {
2971 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2972 dev_info(&netdev->dev,
2973 "Device temperature is now %d degrees C"
2974 " in normal range.\n", temp_val);
2975 }
2976 }
2977 adapter->ahw->temp = temp_state;
2978 return rv;
2979 }
2980
dump_tx_ring_desc(struct qlcnic_host_tx_ring * tx_ring)2981 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2982 {
2983 int i;
2984 struct cmd_desc_type0 *tx_desc_info;
2985
2986 for (i = 0; i < tx_ring->num_desc; i++) {
2987 tx_desc_info = &tx_ring->desc_head[i];
2988 pr_info("TX Desc: %d\n", i);
2989 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
2990 &tx_ring->desc_head[i],
2991 sizeof(struct cmd_desc_type0), true);
2992 }
2993 }
2994
qlcnic_dump_rings(struct qlcnic_adapter * adapter)2995 static void qlcnic_dump_rings(struct qlcnic_adapter *adapter)
2996 {
2997 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2998 struct net_device *netdev = adapter->netdev;
2999 struct qlcnic_host_rds_ring *rds_ring;
3000 struct qlcnic_host_sds_ring *sds_ring;
3001 struct qlcnic_host_tx_ring *tx_ring;
3002 int ring;
3003
3004 if (!netdev || !netif_running(netdev))
3005 return;
3006
3007 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
3008 rds_ring = &recv_ctx->rds_rings[ring];
3009 if (!rds_ring)
3010 continue;
3011 netdev_info(netdev,
3012 "rds_ring=%d crb_rcv_producer=%d producer=%u num_desc=%u\n",
3013 ring, readl(rds_ring->crb_rcv_producer),
3014 rds_ring->producer, rds_ring->num_desc);
3015 }
3016
3017 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3018 sds_ring = &(recv_ctx->sds_rings[ring]);
3019 if (!sds_ring)
3020 continue;
3021 netdev_info(netdev,
3022 "sds_ring=%d crb_sts_consumer=%d consumer=%u crb_intr_mask=%d num_desc=%u\n",
3023 ring, readl(sds_ring->crb_sts_consumer),
3024 sds_ring->consumer, readl(sds_ring->crb_intr_mask),
3025 sds_ring->num_desc);
3026 }
3027
3028 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3029 tx_ring = &adapter->tx_ring[ring];
3030 if (!tx_ring)
3031 continue;
3032 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
3033 ring, tx_ring->ctx_id);
3034 netdev_info(netdev,
3035 "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
3036 tx_ring->tx_stats.xmit_finished,
3037 tx_ring->tx_stats.xmit_called,
3038 tx_ring->tx_stats.xmit_on,
3039 tx_ring->tx_stats.xmit_off);
3040
3041 if (tx_ring->crb_intr_mask)
3042 netdev_info(netdev, "crb_intr_mask=%d\n",
3043 readl(tx_ring->crb_intr_mask));
3044
3045 netdev_info(netdev,
3046 "hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
3047 readl(tx_ring->crb_cmd_producer),
3048 tx_ring->producer, tx_ring->sw_consumer,
3049 le32_to_cpu(*(tx_ring->hw_consumer)));
3050
3051 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
3052 tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
3053
3054 if (netif_msg_tx_err(adapter->ahw))
3055 dump_tx_ring_desc(tx_ring);
3056 }
3057
3058 }
3059
qlcnic_tx_timeout(struct net_device * netdev)3060 static void qlcnic_tx_timeout(struct net_device *netdev)
3061 {
3062 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3063
3064 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3065 return;
3066
3067 qlcnic_dump_rings(adapter);
3068
3069 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS ||
3070 netif_msg_tx_err(adapter->ahw)) {
3071 netdev_err(netdev, "Tx timeout, reset the adapter.\n");
3072 if (qlcnic_82xx_check(adapter))
3073 adapter->need_fw_reset = 1;
3074 else if (qlcnic_83xx_check(adapter))
3075 qlcnic_83xx_idc_request_reset(adapter,
3076 QLCNIC_FORCE_FW_DUMP_KEY);
3077 } else {
3078 netdev_err(netdev, "Tx timeout, reset adapter context.\n");
3079 adapter->ahw->reset_context = 1;
3080 }
3081 }
3082
qlcnic_get_stats(struct net_device * netdev)3083 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3084 {
3085 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3086 struct net_device_stats *stats = &netdev->stats;
3087
3088 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3089 qlcnic_update_stats(adapter);
3090
3091 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3092 stats->tx_packets = adapter->stats.xmitfinished;
3093 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3094 stats->tx_bytes = adapter->stats.txbytes;
3095 stats->rx_dropped = adapter->stats.rxdropped;
3096 stats->tx_dropped = adapter->stats.txdropped;
3097
3098 return stats;
3099 }
3100
qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter * adapter)3101 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3102 {
3103 u32 status;
3104
3105 status = readl(adapter->isr_int_vec);
3106
3107 if (!(status & adapter->ahw->int_vec_bit))
3108 return IRQ_NONE;
3109
3110 /* check interrupt state machine, to be sure */
3111 status = readl(adapter->crb_int_state_reg);
3112 if (!ISR_LEGACY_INT_TRIGGERED(status))
3113 return IRQ_NONE;
3114
3115 writel(0xffffffff, adapter->tgt_status_reg);
3116 /* read twice to ensure write is flushed */
3117 readl(adapter->isr_int_vec);
3118 readl(adapter->isr_int_vec);
3119
3120 return IRQ_HANDLED;
3121 }
3122
qlcnic_tmp_intr(int irq,void * data)3123 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3124 {
3125 struct qlcnic_host_sds_ring *sds_ring = data;
3126 struct qlcnic_adapter *adapter = sds_ring->adapter;
3127
3128 if (adapter->flags & QLCNIC_MSIX_ENABLED)
3129 goto done;
3130 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3131 writel(0xffffffff, adapter->tgt_status_reg);
3132 goto done;
3133 }
3134
3135 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3136 return IRQ_NONE;
3137
3138 done:
3139 adapter->ahw->diag_cnt++;
3140 qlcnic_enable_sds_intr(adapter, sds_ring);
3141 return IRQ_HANDLED;
3142 }
3143
qlcnic_intr(int irq,void * data)3144 static irqreturn_t qlcnic_intr(int irq, void *data)
3145 {
3146 struct qlcnic_host_sds_ring *sds_ring = data;
3147 struct qlcnic_adapter *adapter = sds_ring->adapter;
3148
3149 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3150 return IRQ_NONE;
3151
3152 napi_schedule(&sds_ring->napi);
3153
3154 return IRQ_HANDLED;
3155 }
3156
qlcnic_msi_intr(int irq,void * data)3157 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3158 {
3159 struct qlcnic_host_sds_ring *sds_ring = data;
3160 struct qlcnic_adapter *adapter = sds_ring->adapter;
3161
3162 /* clear interrupt */
3163 writel(0xffffffff, adapter->tgt_status_reg);
3164
3165 napi_schedule(&sds_ring->napi);
3166 return IRQ_HANDLED;
3167 }
3168
qlcnic_msix_intr(int irq,void * data)3169 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3170 {
3171 struct qlcnic_host_sds_ring *sds_ring = data;
3172
3173 napi_schedule(&sds_ring->napi);
3174 return IRQ_HANDLED;
3175 }
3176
qlcnic_msix_tx_intr(int irq,void * data)3177 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3178 {
3179 struct qlcnic_host_tx_ring *tx_ring = data;
3180
3181 napi_schedule(&tx_ring->napi);
3182 return IRQ_HANDLED;
3183 }
3184
3185 #ifdef CONFIG_NET_POLL_CONTROLLER
qlcnic_poll_controller(struct net_device * netdev)3186 static void qlcnic_poll_controller(struct net_device *netdev)
3187 {
3188 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3189 struct qlcnic_host_sds_ring *sds_ring;
3190 struct qlcnic_recv_context *recv_ctx;
3191 struct qlcnic_host_tx_ring *tx_ring;
3192 int ring;
3193
3194 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3195 return;
3196
3197 recv_ctx = adapter->recv_ctx;
3198
3199 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3200 sds_ring = &recv_ctx->sds_rings[ring];
3201 qlcnic_disable_sds_intr(adapter, sds_ring);
3202 napi_schedule(&sds_ring->napi);
3203 }
3204
3205 if (adapter->flags & QLCNIC_MSIX_ENABLED) {
3206 /* Only Multi-Tx queue capable devices need to
3207 * schedule NAPI for TX rings
3208 */
3209 if ((qlcnic_83xx_check(adapter) &&
3210 (adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
3211 (qlcnic_82xx_check(adapter) &&
3212 !qlcnic_check_multi_tx(adapter)))
3213 return;
3214
3215 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3216 tx_ring = &adapter->tx_ring[ring];
3217 qlcnic_disable_tx_intr(adapter, tx_ring);
3218 napi_schedule(&tx_ring->napi);
3219 }
3220 }
3221 }
3222 #endif
3223
3224 static void
qlcnic_idc_debug_info(struct qlcnic_adapter * adapter,u8 encoding)3225 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3226 {
3227 u32 val;
3228
3229 val = adapter->portnum & 0xf;
3230 val |= encoding << 7;
3231 val |= (jiffies - adapter->dev_rst_time) << 8;
3232
3233 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3234 adapter->dev_rst_time = jiffies;
3235 }
3236
3237 static int
qlcnic_set_drv_state(struct qlcnic_adapter * adapter,u8 state)3238 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3239 {
3240 u32 val;
3241
3242 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3243 state != QLCNIC_DEV_NEED_QUISCENT);
3244
3245 if (qlcnic_api_lock(adapter))
3246 return -EIO;
3247
3248 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3249
3250 if (state == QLCNIC_DEV_NEED_RESET)
3251 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3252 else if (state == QLCNIC_DEV_NEED_QUISCENT)
3253 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3254
3255 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3256
3257 qlcnic_api_unlock(adapter);
3258
3259 return 0;
3260 }
3261
3262 static int
qlcnic_clr_drv_state(struct qlcnic_adapter * adapter)3263 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3264 {
3265 u32 val;
3266
3267 if (qlcnic_api_lock(adapter))
3268 return -EBUSY;
3269
3270 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3271 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3272 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3273
3274 qlcnic_api_unlock(adapter);
3275
3276 return 0;
3277 }
3278
qlcnic_clr_all_drv_state(struct qlcnic_adapter * adapter,u8 failed)3279 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3280 {
3281 u32 val;
3282
3283 if (qlcnic_api_lock(adapter))
3284 goto err;
3285
3286 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3287 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3288 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3289
3290 if (failed) {
3291 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3292 QLCNIC_DEV_FAILED);
3293 dev_info(&adapter->pdev->dev,
3294 "Device state set to Failed. Please Reboot\n");
3295 } else if (!(val & 0x11111111))
3296 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3297 QLCNIC_DEV_COLD);
3298
3299 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3300 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3301 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3302
3303 qlcnic_api_unlock(adapter);
3304 err:
3305 adapter->fw_fail_cnt = 0;
3306 adapter->flags &= ~QLCNIC_FW_HANG;
3307 clear_bit(__QLCNIC_START_FW, &adapter->state);
3308 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3309 }
3310
3311 /* Grab api lock, before checking state */
3312 static int
qlcnic_check_drv_state(struct qlcnic_adapter * adapter)3313 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3314 {
3315 int act, state, active_mask;
3316 struct qlcnic_hardware_context *ahw = adapter->ahw;
3317
3318 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3319 act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3320
3321 if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3322 active_mask = (~(1 << (ahw->pci_func * 4)));
3323 act = act & active_mask;
3324 }
3325
3326 if (((state & 0x11111111) == (act & 0x11111111)) ||
3327 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3328 return 0;
3329 else
3330 return 1;
3331 }
3332
qlcnic_check_idc_ver(struct qlcnic_adapter * adapter)3333 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3334 {
3335 u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3336
3337 if (val != QLCNIC_DRV_IDC_VER) {
3338 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3339 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3340 }
3341
3342 return 0;
3343 }
3344
3345 static int
qlcnic_can_start_firmware(struct qlcnic_adapter * adapter)3346 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3347 {
3348 u32 val, prev_state;
3349 u8 dev_init_timeo = adapter->dev_init_timeo;
3350 u8 portnum = adapter->portnum;
3351 u8 ret;
3352
3353 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3354 return 1;
3355
3356 if (qlcnic_api_lock(adapter))
3357 return -1;
3358
3359 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3360 if (!(val & (1 << (portnum * 4)))) {
3361 QLC_DEV_SET_REF_CNT(val, portnum);
3362 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3363 }
3364
3365 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3366 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3367
3368 switch (prev_state) {
3369 case QLCNIC_DEV_COLD:
3370 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3371 QLCNIC_DEV_INITIALIZING);
3372 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3373 QLCNIC_DRV_IDC_VER);
3374 qlcnic_idc_debug_info(adapter, 0);
3375 qlcnic_api_unlock(adapter);
3376 return 1;
3377
3378 case QLCNIC_DEV_READY:
3379 ret = qlcnic_check_idc_ver(adapter);
3380 qlcnic_api_unlock(adapter);
3381 return ret;
3382
3383 case QLCNIC_DEV_NEED_RESET:
3384 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3385 QLC_DEV_SET_RST_RDY(val, portnum);
3386 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3387 break;
3388
3389 case QLCNIC_DEV_NEED_QUISCENT:
3390 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3391 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3392 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3393 break;
3394
3395 case QLCNIC_DEV_FAILED:
3396 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3397 qlcnic_api_unlock(adapter);
3398 return -1;
3399
3400 case QLCNIC_DEV_INITIALIZING:
3401 case QLCNIC_DEV_QUISCENT:
3402 break;
3403 }
3404
3405 qlcnic_api_unlock(adapter);
3406
3407 do {
3408 msleep(1000);
3409 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3410
3411 if (prev_state == QLCNIC_DEV_QUISCENT)
3412 continue;
3413 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3414
3415 if (!dev_init_timeo) {
3416 dev_err(&adapter->pdev->dev,
3417 "Waiting for device to initialize timeout\n");
3418 return -1;
3419 }
3420
3421 if (qlcnic_api_lock(adapter))
3422 return -1;
3423
3424 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3425 QLC_DEV_CLR_RST_QSCNT(val, portnum);
3426 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3427
3428 ret = qlcnic_check_idc_ver(adapter);
3429 qlcnic_api_unlock(adapter);
3430
3431 return ret;
3432 }
3433
3434 static void
qlcnic_fwinit_work(struct work_struct * work)3435 qlcnic_fwinit_work(struct work_struct *work)
3436 {
3437 struct qlcnic_adapter *adapter = container_of(work,
3438 struct qlcnic_adapter, fw_work.work);
3439 u32 dev_state = 0xf;
3440 u32 val;
3441
3442 if (qlcnic_api_lock(adapter))
3443 goto err_ret;
3444
3445 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3446 if (dev_state == QLCNIC_DEV_QUISCENT ||
3447 dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3448 qlcnic_api_unlock(adapter);
3449 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3450 FW_POLL_DELAY * 2);
3451 return;
3452 }
3453
3454 if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3455 qlcnic_api_unlock(adapter);
3456 goto wait_npar;
3457 }
3458
3459 if (dev_state == QLCNIC_DEV_INITIALIZING ||
3460 dev_state == QLCNIC_DEV_READY) {
3461 dev_info(&adapter->pdev->dev, "Detected state change from "
3462 "DEV_NEED_RESET, skipping ack check\n");
3463 goto skip_ack_check;
3464 }
3465
3466 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3467 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3468 adapter->reset_ack_timeo);
3469 goto skip_ack_check;
3470 }
3471
3472 if (!qlcnic_check_drv_state(adapter)) {
3473 skip_ack_check:
3474 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3475
3476 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3477 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3478 QLCNIC_DEV_INITIALIZING);
3479 set_bit(__QLCNIC_START_FW, &adapter->state);
3480 QLCDB(adapter, DRV, "Restarting fw\n");
3481 qlcnic_idc_debug_info(adapter, 0);
3482 val = QLC_SHARED_REG_RD32(adapter,
3483 QLCNIC_CRB_DRV_STATE);
3484 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3485 QLC_SHARED_REG_WR32(adapter,
3486 QLCNIC_CRB_DRV_STATE, val);
3487 }
3488
3489 qlcnic_api_unlock(adapter);
3490
3491 rtnl_lock();
3492 if (qlcnic_check_fw_dump_state(adapter) &&
3493 (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3494 QLCDB(adapter, DRV, "Take FW dump\n");
3495 qlcnic_dump_fw(adapter);
3496 adapter->flags |= QLCNIC_FW_HANG;
3497 }
3498 rtnl_unlock();
3499
3500 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3501 if (!adapter->nic_ops->start_firmware(adapter)) {
3502 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3503 adapter->fw_wait_cnt = 0;
3504 return;
3505 }
3506 goto err_ret;
3507 }
3508
3509 qlcnic_api_unlock(adapter);
3510
3511 wait_npar:
3512 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3513 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3514
3515 switch (dev_state) {
3516 case QLCNIC_DEV_READY:
3517 if (!qlcnic_start_firmware(adapter)) {
3518 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3519 adapter->fw_wait_cnt = 0;
3520 return;
3521 }
3522 case QLCNIC_DEV_FAILED:
3523 break;
3524 default:
3525 qlcnic_schedule_work(adapter,
3526 qlcnic_fwinit_work, FW_POLL_DELAY);
3527 return;
3528 }
3529
3530 err_ret:
3531 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3532 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3533 netif_device_attach(adapter->netdev);
3534 qlcnic_clr_all_drv_state(adapter, 0);
3535 }
3536
3537 static void
qlcnic_detach_work(struct work_struct * work)3538 qlcnic_detach_work(struct work_struct *work)
3539 {
3540 struct qlcnic_adapter *adapter = container_of(work,
3541 struct qlcnic_adapter, fw_work.work);
3542 struct net_device *netdev = adapter->netdev;
3543 u32 status;
3544
3545 netif_device_detach(netdev);
3546
3547 /* Dont grab rtnl lock during Quiscent mode */
3548 if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3549 if (netif_running(netdev))
3550 __qlcnic_down(adapter, netdev);
3551 } else
3552 qlcnic_down(adapter, netdev);
3553
3554 status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3555
3556 if (status & QLCNIC_RCODE_FATAL_ERROR) {
3557 dev_err(&adapter->pdev->dev,
3558 "Detaching the device: peg halt status1=0x%x\n",
3559 status);
3560
3561 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3562 dev_err(&adapter->pdev->dev,
3563 "On board active cooling fan failed. "
3564 "Device has been halted.\n");
3565 dev_err(&adapter->pdev->dev,
3566 "Replace the adapter.\n");
3567 }
3568
3569 goto err_ret;
3570 }
3571
3572 if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3573 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3574 adapter->ahw->temp);
3575 goto err_ret;
3576 }
3577
3578 /* Dont ack if this instance is the reset owner */
3579 if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3580 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3581 dev_err(&adapter->pdev->dev,
3582 "Failed to set driver state,"
3583 "detaching the device.\n");
3584 goto err_ret;
3585 }
3586 }
3587
3588 adapter->fw_wait_cnt = 0;
3589
3590 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3591
3592 return;
3593
3594 err_ret:
3595 netif_device_attach(netdev);
3596 qlcnic_clr_all_drv_state(adapter, 1);
3597 }
3598
3599 /*Transit NPAR state to NON Operational */
3600 static void
qlcnic_set_npar_non_operational(struct qlcnic_adapter * adapter)3601 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3602 {
3603 u32 state;
3604
3605 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3606 if (state == QLCNIC_DEV_NPAR_NON_OPER)
3607 return;
3608
3609 if (qlcnic_api_lock(adapter))
3610 return;
3611 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3612 QLCNIC_DEV_NPAR_NON_OPER);
3613 qlcnic_api_unlock(adapter);
3614 }
3615
qlcnic_82xx_dev_request_reset(struct qlcnic_adapter * adapter,u32 key)3616 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3617 u32 key)
3618 {
3619 u32 state, xg_val = 0, gb_val = 0;
3620
3621 qlcnic_xg_set_xg0_mask(xg_val);
3622 qlcnic_xg_set_xg1_mask(xg_val);
3623 QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3624 qlcnic_gb_set_gb0_mask(gb_val);
3625 qlcnic_gb_set_gb1_mask(gb_val);
3626 qlcnic_gb_set_gb2_mask(gb_val);
3627 qlcnic_gb_set_gb3_mask(gb_val);
3628 QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3629 dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3630 " on all ports\n");
3631 adapter->need_fw_reset = 1;
3632
3633 if (qlcnic_api_lock(adapter))
3634 return;
3635
3636 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3637
3638 if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3639 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3640 __func__);
3641 qlcnic_api_unlock(adapter);
3642
3643 return;
3644 }
3645
3646 if (state == QLCNIC_DEV_READY) {
3647 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3648 QLCNIC_DEV_NEED_RESET);
3649 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3650 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3651 qlcnic_idc_debug_info(adapter, 0);
3652 }
3653
3654 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3655 QLCNIC_DEV_NPAR_NON_OPER);
3656 qlcnic_api_unlock(adapter);
3657 }
3658
3659 /* Transit to NPAR READY state from NPAR NOT READY state */
3660 static void
qlcnic_dev_set_npar_ready(struct qlcnic_adapter * adapter)3661 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3662 {
3663 if (qlcnic_api_lock(adapter))
3664 return;
3665
3666 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3667 QLCNIC_DEV_NPAR_OPER);
3668 QLCDB(adapter, DRV, "NPAR operational state set\n");
3669
3670 qlcnic_api_unlock(adapter);
3671 }
3672
qlcnic_schedule_work(struct qlcnic_adapter * adapter,work_func_t func,int delay)3673 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3674 work_func_t func, int delay)
3675 {
3676 if (test_bit(__QLCNIC_AER, &adapter->state))
3677 return;
3678
3679 INIT_DELAYED_WORK(&adapter->fw_work, func);
3680 queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3681 round_jiffies_relative(delay));
3682 }
3683
3684 static void
qlcnic_attach_work(struct work_struct * work)3685 qlcnic_attach_work(struct work_struct *work)
3686 {
3687 struct qlcnic_adapter *adapter = container_of(work,
3688 struct qlcnic_adapter, fw_work.work);
3689 struct net_device *netdev = adapter->netdev;
3690 u32 npar_state;
3691
3692 if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3693 npar_state = QLC_SHARED_REG_RD32(adapter,
3694 QLCNIC_CRB_DEV_NPAR_STATE);
3695 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3696 qlcnic_clr_all_drv_state(adapter, 0);
3697 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3698 qlcnic_schedule_work(adapter, qlcnic_attach_work,
3699 FW_POLL_DELAY);
3700 else
3701 goto attach;
3702 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3703 return;
3704 }
3705 attach:
3706 qlcnic_dcb_get_info(adapter->dcb);
3707
3708 if (netif_running(netdev)) {
3709 if (qlcnic_up(adapter, netdev))
3710 goto done;
3711
3712 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3713 }
3714
3715 done:
3716 netif_device_attach(netdev);
3717 adapter->fw_fail_cnt = 0;
3718 adapter->flags &= ~QLCNIC_FW_HANG;
3719 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3720 if (adapter->portnum == 0)
3721 qlcnic_set_drv_version(adapter);
3722
3723 if (!qlcnic_clr_drv_state(adapter))
3724 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3725 FW_POLL_DELAY);
3726 }
3727
3728 static int
qlcnic_check_health(struct qlcnic_adapter * adapter)3729 qlcnic_check_health(struct qlcnic_adapter *adapter)
3730 {
3731 struct qlcnic_hardware_context *ahw = adapter->ahw;
3732 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3733 u32 state = 0, heartbeat;
3734 u32 peg_status;
3735 int err = 0;
3736
3737 if (qlcnic_check_temp(adapter))
3738 goto detach;
3739
3740 if (adapter->need_fw_reset)
3741 qlcnic_dev_request_reset(adapter, 0);
3742
3743 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3744 if (state == QLCNIC_DEV_NEED_RESET) {
3745 qlcnic_set_npar_non_operational(adapter);
3746 adapter->need_fw_reset = 1;
3747 } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3748 goto detach;
3749
3750 heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3751 if (heartbeat != adapter->heartbeat) {
3752 adapter->heartbeat = heartbeat;
3753 adapter->fw_fail_cnt = 0;
3754 if (adapter->need_fw_reset)
3755 goto detach;
3756
3757 if (ahw->reset_context && qlcnic_auto_fw_reset)
3758 qlcnic_reset_hw_context(adapter);
3759
3760 return 0;
3761 }
3762
3763 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3764 return 0;
3765
3766 adapter->flags |= QLCNIC_FW_HANG;
3767
3768 qlcnic_dev_request_reset(adapter, 0);
3769
3770 if (qlcnic_auto_fw_reset)
3771 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3772
3773 dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3774 peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3775 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3776 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3777 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3778 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3779 "PEG_NET_4_PC: 0x%x\n",
3780 peg_status,
3781 QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3782 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3783 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3784 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3785 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3786 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3787 if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3788 dev_err(&adapter->pdev->dev,
3789 "Firmware aborted with error code 0x00006700. "
3790 "Device is being reset.\n");
3791 detach:
3792 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3793 QLCNIC_DEV_NEED_RESET;
3794
3795 if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3796 &adapter->state)) {
3797
3798 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3799 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3800 } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3801 adapter->flags & QLCNIC_FW_RESET_OWNER) {
3802 qlcnic_dump_fw(adapter);
3803 }
3804
3805 return 1;
3806 }
3807
qlcnic_fw_poll_work(struct work_struct * work)3808 void qlcnic_fw_poll_work(struct work_struct *work)
3809 {
3810 struct qlcnic_adapter *adapter = container_of(work,
3811 struct qlcnic_adapter, fw_work.work);
3812
3813 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3814 goto reschedule;
3815
3816
3817 if (qlcnic_check_health(adapter))
3818 return;
3819
3820 if (adapter->fhash.fnum)
3821 qlcnic_prune_lb_filters(adapter);
3822
3823 reschedule:
3824 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3825 }
3826
qlcnic_is_first_func(struct pci_dev * pdev)3827 static int qlcnic_is_first_func(struct pci_dev *pdev)
3828 {
3829 struct pci_dev *oth_pdev;
3830 int val = pdev->devfn;
3831
3832 while (val-- > 0) {
3833 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3834 (pdev->bus), pdev->bus->number,
3835 PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3836 if (!oth_pdev)
3837 continue;
3838
3839 if (oth_pdev->current_state != PCI_D3cold) {
3840 pci_dev_put(oth_pdev);
3841 return 0;
3842 }
3843 pci_dev_put(oth_pdev);
3844 }
3845 return 1;
3846 }
3847
qlcnic_attach_func(struct pci_dev * pdev)3848 static int qlcnic_attach_func(struct pci_dev *pdev)
3849 {
3850 int err, first_func;
3851 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3852 struct net_device *netdev = adapter->netdev;
3853
3854 pdev->error_state = pci_channel_io_normal;
3855
3856 err = pci_enable_device(pdev);
3857 if (err)
3858 return err;
3859
3860 pci_set_master(pdev);
3861 pci_restore_state(pdev);
3862
3863 first_func = qlcnic_is_first_func(pdev);
3864
3865 if (qlcnic_api_lock(adapter))
3866 return -EINVAL;
3867
3868 if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3869 adapter->need_fw_reset = 1;
3870 set_bit(__QLCNIC_START_FW, &adapter->state);
3871 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3872 QLCNIC_DEV_INITIALIZING);
3873 QLCDB(adapter, DRV, "Restarting fw\n");
3874 }
3875 qlcnic_api_unlock(adapter);
3876
3877 err = qlcnic_start_firmware(adapter);
3878 if (err)
3879 return err;
3880
3881 qlcnic_clr_drv_state(adapter);
3882 kfree(adapter->msix_entries);
3883 adapter->msix_entries = NULL;
3884 err = qlcnic_setup_intr(adapter);
3885
3886 if (err) {
3887 kfree(adapter->msix_entries);
3888 netdev_err(netdev, "failed to setup interrupt\n");
3889 return err;
3890 }
3891
3892 if (netif_running(netdev)) {
3893 err = qlcnic_attach(adapter);
3894 if (err) {
3895 qlcnic_clr_all_drv_state(adapter, 1);
3896 clear_bit(__QLCNIC_AER, &adapter->state);
3897 netif_device_attach(netdev);
3898 return err;
3899 }
3900
3901 err = qlcnic_up(adapter, netdev);
3902 if (err)
3903 goto done;
3904
3905 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3906 }
3907 done:
3908 netif_device_attach(netdev);
3909 return err;
3910 }
3911
qlcnic_82xx_io_error_detected(struct pci_dev * pdev,pci_channel_state_t state)3912 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3913 pci_channel_state_t state)
3914 {
3915 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3916 struct net_device *netdev = adapter->netdev;
3917
3918 if (state == pci_channel_io_perm_failure)
3919 return PCI_ERS_RESULT_DISCONNECT;
3920
3921 if (state == pci_channel_io_normal)
3922 return PCI_ERS_RESULT_RECOVERED;
3923
3924 set_bit(__QLCNIC_AER, &adapter->state);
3925 netif_device_detach(netdev);
3926
3927 cancel_delayed_work_sync(&adapter->fw_work);
3928
3929 if (netif_running(netdev))
3930 qlcnic_down(adapter, netdev);
3931
3932 qlcnic_detach(adapter);
3933 qlcnic_teardown_intr(adapter);
3934
3935 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3936
3937 pci_save_state(pdev);
3938 pci_disable_device(pdev);
3939
3940 return PCI_ERS_RESULT_NEED_RESET;
3941 }
3942
qlcnic_82xx_io_slot_reset(struct pci_dev * pdev)3943 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3944 {
3945 return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3946 PCI_ERS_RESULT_RECOVERED;
3947 }
3948
qlcnic_82xx_io_resume(struct pci_dev * pdev)3949 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3950 {
3951 u32 state;
3952 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3953
3954 pci_cleanup_aer_uncorrect_error_status(pdev);
3955 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3956 if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3957 &adapter->state))
3958 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3959 FW_POLL_DELAY);
3960 }
3961
qlcnic_io_error_detected(struct pci_dev * pdev,pci_channel_state_t state)3962 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3963 pci_channel_state_t state)
3964 {
3965 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3966 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3967
3968 if (hw_ops->io_error_detected) {
3969 return hw_ops->io_error_detected(pdev, state);
3970 } else {
3971 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3972 return PCI_ERS_RESULT_DISCONNECT;
3973 }
3974 }
3975
qlcnic_io_slot_reset(struct pci_dev * pdev)3976 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3977 {
3978 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3979 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3980
3981 if (hw_ops->io_slot_reset) {
3982 return hw_ops->io_slot_reset(pdev);
3983 } else {
3984 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3985 return PCI_ERS_RESULT_DISCONNECT;
3986 }
3987 }
3988
qlcnic_io_resume(struct pci_dev * pdev)3989 static void qlcnic_io_resume(struct pci_dev *pdev)
3990 {
3991 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3992 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3993
3994 if (hw_ops->io_resume)
3995 hw_ops->io_resume(pdev);
3996 else
3997 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3998 }
3999
4000
4001 static int
qlcnicvf_start_firmware(struct qlcnic_adapter * adapter)4002 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
4003 {
4004 int err;
4005
4006 err = qlcnic_can_start_firmware(adapter);
4007 if (err)
4008 return err;
4009
4010 err = qlcnic_check_npar_opertional(adapter);
4011 if (err)
4012 return err;
4013
4014 err = qlcnic_initialize_nic(adapter);
4015 if (err)
4016 return err;
4017
4018 qlcnic_check_options(adapter);
4019
4020 err = qlcnic_set_eswitch_port_config(adapter);
4021 if (err)
4022 return err;
4023
4024 adapter->need_fw_reset = 0;
4025
4026 return err;
4027 }
4028
qlcnic_validate_rings(struct qlcnic_adapter * adapter,__u32 ring_cnt,int queue_type)4029 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
4030 int queue_type)
4031 {
4032 struct net_device *netdev = adapter->netdev;
4033 u8 max_hw_rings = 0;
4034 char buf[8];
4035 int cur_rings;
4036
4037 if (queue_type == QLCNIC_RX_QUEUE) {
4038 max_hw_rings = adapter->max_sds_rings;
4039 cur_rings = adapter->drv_sds_rings;
4040 strcpy(buf, "SDS");
4041 } else if (queue_type == QLCNIC_TX_QUEUE) {
4042 max_hw_rings = adapter->max_tx_rings;
4043 cur_rings = adapter->drv_tx_rings;
4044 strcpy(buf, "Tx");
4045 }
4046
4047 if (!is_power_of_2(ring_cnt)) {
4048 netdev_err(netdev, "%s rings value should be a power of 2\n",
4049 buf);
4050 return -EINVAL;
4051 }
4052
4053 if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
4054 !qlcnic_check_multi_tx(adapter)) {
4055 netdev_err(netdev, "No Multi Tx queue support\n");
4056 return -EINVAL;
4057 }
4058
4059 if (ring_cnt > num_online_cpus()) {
4060 netdev_err(netdev,
4061 "%s value[%u] should not be higher than, number of online CPUs\n",
4062 buf, num_online_cpus());
4063 return -EINVAL;
4064 }
4065
4066 return 0;
4067 }
4068
qlcnic_setup_rings(struct qlcnic_adapter * adapter)4069 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
4070 {
4071 struct net_device *netdev = adapter->netdev;
4072 u8 tx_rings, rx_rings;
4073 int err;
4074
4075 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
4076 return -EBUSY;
4077
4078 tx_rings = adapter->drv_tss_rings;
4079 rx_rings = adapter->drv_rss_rings;
4080
4081 netif_device_detach(netdev);
4082
4083 err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings);
4084 if (err)
4085 goto done;
4086
4087 if (netif_running(netdev))
4088 __qlcnic_down(adapter, netdev);
4089
4090 qlcnic_detach(adapter);
4091
4092 if (qlcnic_83xx_check(adapter)) {
4093 qlcnic_83xx_free_mbx_intr(adapter);
4094 qlcnic_83xx_enable_mbx_poll(adapter);
4095 }
4096
4097 qlcnic_teardown_intr(adapter);
4098
4099 err = qlcnic_setup_intr(adapter);
4100 if (err) {
4101 kfree(adapter->msix_entries);
4102 netdev_err(netdev, "failed to setup interrupt\n");
4103 return err;
4104 }
4105
4106 /* Check if we need to update real_num_{tx|rx}_queues because
4107 * qlcnic_setup_intr() may change Tx/Rx rings size
4108 */
4109 if ((tx_rings != adapter->drv_tx_rings) ||
4110 (rx_rings != adapter->drv_sds_rings)) {
4111 err = qlcnic_set_real_num_queues(adapter,
4112 adapter->drv_tx_rings,
4113 adapter->drv_sds_rings);
4114 if (err)
4115 goto done;
4116 }
4117
4118 if (qlcnic_83xx_check(adapter)) {
4119 qlcnic_83xx_initialize_nic(adapter, 1);
4120 err = qlcnic_83xx_setup_mbx_intr(adapter);
4121 qlcnic_83xx_disable_mbx_poll(adapter);
4122 if (err) {
4123 dev_err(&adapter->pdev->dev,
4124 "failed to setup mbx interrupt\n");
4125 goto done;
4126 }
4127 }
4128
4129 if (netif_running(netdev)) {
4130 err = qlcnic_attach(adapter);
4131 if (err)
4132 goto done;
4133 err = __qlcnic_up(adapter, netdev);
4134 if (err)
4135 goto done;
4136 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4137 }
4138 done:
4139 netif_device_attach(netdev);
4140 clear_bit(__QLCNIC_RESETTING, &adapter->state);
4141 return err;
4142 }
4143
4144 #ifdef CONFIG_INET
4145
4146 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4147
4148 static void
qlcnic_config_indev_addr(struct qlcnic_adapter * adapter,struct net_device * dev,unsigned long event)4149 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4150 struct net_device *dev, unsigned long event)
4151 {
4152 struct in_device *indev;
4153
4154 indev = in_dev_get(dev);
4155 if (!indev)
4156 return;
4157
4158 for_ifa(indev) {
4159 switch (event) {
4160 case NETDEV_UP:
4161 qlcnic_config_ipaddr(adapter,
4162 ifa->ifa_address, QLCNIC_IP_UP);
4163 break;
4164 case NETDEV_DOWN:
4165 qlcnic_config_ipaddr(adapter,
4166 ifa->ifa_address, QLCNIC_IP_DOWN);
4167 break;
4168 default:
4169 break;
4170 }
4171 } endfor_ifa(indev);
4172
4173 in_dev_put(indev);
4174 }
4175
qlcnic_restore_indev_addr(struct net_device * netdev,unsigned long event)4176 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4177 {
4178 struct qlcnic_adapter *adapter = netdev_priv(netdev);
4179 struct net_device *dev;
4180 u16 vid;
4181
4182 qlcnic_config_indev_addr(adapter, netdev, event);
4183
4184 rcu_read_lock();
4185 for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4186 dev = __vlan_find_dev_deep_rcu(netdev, htons(ETH_P_8021Q), vid);
4187 if (!dev)
4188 continue;
4189 qlcnic_config_indev_addr(adapter, dev, event);
4190 }
4191 rcu_read_unlock();
4192 }
4193
qlcnic_netdev_event(struct notifier_block * this,unsigned long event,void * ptr)4194 static int qlcnic_netdev_event(struct notifier_block *this,
4195 unsigned long event, void *ptr)
4196 {
4197 struct qlcnic_adapter *adapter;
4198 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4199
4200 recheck:
4201 if (dev == NULL)
4202 goto done;
4203
4204 if (dev->priv_flags & IFF_802_1Q_VLAN) {
4205 dev = vlan_dev_real_dev(dev);
4206 goto recheck;
4207 }
4208
4209 if (!is_qlcnic_netdev(dev))
4210 goto done;
4211
4212 adapter = netdev_priv(dev);
4213
4214 if (!adapter)
4215 goto done;
4216
4217 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4218 goto done;
4219
4220 qlcnic_config_indev_addr(adapter, dev, event);
4221 done:
4222 return NOTIFY_DONE;
4223 }
4224
4225 static int
qlcnic_inetaddr_event(struct notifier_block * this,unsigned long event,void * ptr)4226 qlcnic_inetaddr_event(struct notifier_block *this,
4227 unsigned long event, void *ptr)
4228 {
4229 struct qlcnic_adapter *adapter;
4230 struct net_device *dev;
4231
4232 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4233
4234 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4235
4236 recheck:
4237 if (dev == NULL)
4238 goto done;
4239
4240 if (dev->priv_flags & IFF_802_1Q_VLAN) {
4241 dev = vlan_dev_real_dev(dev);
4242 goto recheck;
4243 }
4244
4245 if (!is_qlcnic_netdev(dev))
4246 goto done;
4247
4248 adapter = netdev_priv(dev);
4249
4250 if (!adapter)
4251 goto done;
4252
4253 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4254 goto done;
4255
4256 switch (event) {
4257 case NETDEV_UP:
4258 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4259
4260 break;
4261 case NETDEV_DOWN:
4262 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4263
4264 break;
4265 default:
4266 break;
4267 }
4268
4269 done:
4270 return NOTIFY_DONE;
4271 }
4272
4273 static struct notifier_block qlcnic_netdev_cb = {
4274 .notifier_call = qlcnic_netdev_event,
4275 };
4276
4277 static struct notifier_block qlcnic_inetaddr_cb = {
4278 .notifier_call = qlcnic_inetaddr_event,
4279 };
4280 #else
qlcnic_restore_indev_addr(struct net_device * dev,unsigned long event)4281 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4282 { }
4283 #endif
4284 static const struct pci_error_handlers qlcnic_err_handler = {
4285 .error_detected = qlcnic_io_error_detected,
4286 .slot_reset = qlcnic_io_slot_reset,
4287 .resume = qlcnic_io_resume,
4288 };
4289
4290 static struct pci_driver qlcnic_driver = {
4291 .name = qlcnic_driver_name,
4292 .id_table = qlcnic_pci_tbl,
4293 .probe = qlcnic_probe,
4294 .remove = qlcnic_remove,
4295 #ifdef CONFIG_PM
4296 .suspend = qlcnic_suspend,
4297 .resume = qlcnic_resume,
4298 #endif
4299 .shutdown = qlcnic_shutdown,
4300 .err_handler = &qlcnic_err_handler,
4301 #ifdef CONFIG_QLCNIC_SRIOV
4302 .sriov_configure = qlcnic_pci_sriov_configure,
4303 #endif
4304
4305 };
4306
qlcnic_init_module(void)4307 static int __init qlcnic_init_module(void)
4308 {
4309 int ret;
4310
4311 printk(KERN_INFO "%s\n", qlcnic_driver_string);
4312
4313 #ifdef CONFIG_INET
4314 register_netdevice_notifier(&qlcnic_netdev_cb);
4315 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4316 #endif
4317
4318 ret = pci_register_driver(&qlcnic_driver);
4319 if (ret) {
4320 #ifdef CONFIG_INET
4321 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4322 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4323 #endif
4324 }
4325
4326 return ret;
4327 }
4328
4329 module_init(qlcnic_init_module);
4330
qlcnic_exit_module(void)4331 static void __exit qlcnic_exit_module(void)
4332 {
4333 pci_unregister_driver(&qlcnic_driver);
4334
4335 #ifdef CONFIG_INET
4336 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4337 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4338 #endif
4339 }
4340
4341 module_exit(qlcnic_exit_module);
4342