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 #include <linux/swab.h>
11 #include <linux/dma-mapping.h>
12 #include <linux/if_vlan.h>
13 #include <net/ip.h>
14 #include <linux/ipv6.h>
15 #include <linux/inetdevice.h>
16 #include <linux/aer.h>
17 #include <linux/log2.h>
18 #include <linux/pci.h>
19 #include <net/vxlan.h>
20
21 #include "qlcnic.h"
22 #include "qlcnic_sriov.h"
23 #include "qlcnic_hw.h"
24
25 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
26 MODULE_LICENSE("GPL");
27 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
28 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
29
30 char qlcnic_driver_name[] = "qlcnic";
31 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
32 "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
33
34 static int qlcnic_mac_learn;
35 module_param(qlcnic_mac_learn, int, 0444);
36 MODULE_PARM_DESC(qlcnic_mac_learn,
37 "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
38
39 int qlcnic_use_msi = 1;
40 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
41 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
42
43 int qlcnic_use_msi_x = 1;
44 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
45 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
46
47 int qlcnic_auto_fw_reset = 1;
48 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
49 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
50
51 int qlcnic_load_fw_file;
52 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file, 2=POST in fast mode, 3= POST in medium mode, 4=POST in slow mode)");
53 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
54
55 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
56 static void qlcnic_remove(struct pci_dev *pdev);
57 static int qlcnic_open(struct net_device *netdev);
58 static int qlcnic_close(struct net_device *netdev);
59 static void qlcnic_tx_timeout(struct net_device *netdev);
60 static void qlcnic_attach_work(struct work_struct *work);
61 static void qlcnic_fwinit_work(struct work_struct *work);
62
63 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
64 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
65
66 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
67 static irqreturn_t qlcnic_intr(int irq, void *data);
68 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
69 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
70 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
71
72 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
73 static int qlcnic_start_firmware(struct qlcnic_adapter *);
74
75 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
76 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
77 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
78 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
79 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
80
81 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *);
82 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *, u32);
83 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *);
84 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *);
85 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *);
86 static void qlcnic_82xx_io_resume(struct pci_dev *);
87 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
88 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *,
89 pci_channel_state_t);
qlcnic_vlan_tx_check(struct qlcnic_adapter * adapter)90 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
91 {
92 struct qlcnic_hardware_context *ahw = adapter->ahw;
93
94 if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
95 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
96 else
97 return 1;
98 }
99
100 /* PCI Device ID Table */
101 #define ENTRY(device) \
102 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
103 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
104
105 static const struct pci_device_id qlcnic_pci_tbl[] = {
106 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
107 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
108 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
109 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE8830),
110 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE8C30),
111 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
112 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
113 {0,}
114 };
115
116 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
117
118
qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring * tx_ring)119 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
120 {
121 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
122 }
123
124 static const u32 msi_tgt_status[8] = {
125 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
126 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
127 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
128 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
129 };
130
131 static const u32 qlcnic_reg_tbl[] = {
132 0x1B20A8, /* PEG_HALT_STAT1 */
133 0x1B20AC, /* PEG_HALT_STAT2 */
134 0x1B20B0, /* FW_HEARTBEAT */
135 0x1B2100, /* LOCK ID */
136 0x1B2128, /* FW_CAPABILITIES */
137 0x1B2138, /* drv active */
138 0x1B2140, /* dev state */
139 0x1B2144, /* drv state */
140 0x1B2148, /* drv scratch */
141 0x1B214C, /* dev partition info */
142 0x1B2174, /* drv idc ver */
143 0x1B2150, /* fw version major */
144 0x1B2154, /* fw version minor */
145 0x1B2158, /* fw version sub */
146 0x1B219C, /* npar state */
147 0x1B21FC, /* FW_IMG_VALID */
148 0x1B2250, /* CMD_PEG_STATE */
149 0x1B233C, /* RCV_PEG_STATE */
150 0x1B23B4, /* ASIC TEMP */
151 0x1B216C, /* FW api */
152 0x1B2170, /* drv op mode */
153 0x13C010, /* flash lock */
154 0x13C014, /* flash unlock */
155 };
156
157 static const struct qlcnic_board_info qlcnic_boards[] = {
158 { PCI_VENDOR_ID_QLOGIC,
159 PCI_DEVICE_ID_QLOGIC_QLE844X,
160 0x0,
161 0x0,
162 "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
163 { PCI_VENDOR_ID_QLOGIC,
164 PCI_DEVICE_ID_QLOGIC_QLE834X,
165 PCI_VENDOR_ID_QLOGIC,
166 0x24e,
167 "8300 Series Dual Port 10GbE Converged Network Adapter "
168 "(TCP/IP Networking)" },
169 { PCI_VENDOR_ID_QLOGIC,
170 PCI_DEVICE_ID_QLOGIC_QLE834X,
171 PCI_VENDOR_ID_QLOGIC,
172 0x243,
173 "8300 Series Single Port 10GbE Converged Network Adapter "
174 "(TCP/IP Networking)" },
175 { PCI_VENDOR_ID_QLOGIC,
176 PCI_DEVICE_ID_QLOGIC_QLE834X,
177 PCI_VENDOR_ID_QLOGIC,
178 0x24a,
179 "8300 Series Dual Port 10GbE Converged Network Adapter "
180 "(TCP/IP Networking)" },
181 { PCI_VENDOR_ID_QLOGIC,
182 PCI_DEVICE_ID_QLOGIC_QLE834X,
183 PCI_VENDOR_ID_QLOGIC,
184 0x246,
185 "8300 Series Dual Port 10GbE Converged Network Adapter "
186 "(TCP/IP Networking)" },
187 { PCI_VENDOR_ID_QLOGIC,
188 PCI_DEVICE_ID_QLOGIC_QLE834X,
189 PCI_VENDOR_ID_QLOGIC,
190 0x252,
191 "8300 Series Dual Port 10GbE Converged Network Adapter "
192 "(TCP/IP Networking)" },
193 { PCI_VENDOR_ID_QLOGIC,
194 PCI_DEVICE_ID_QLOGIC_QLE834X,
195 PCI_VENDOR_ID_QLOGIC,
196 0x26e,
197 "8300 Series Dual Port 10GbE Converged Network Adapter "
198 "(TCP/IP Networking)" },
199 { PCI_VENDOR_ID_QLOGIC,
200 PCI_DEVICE_ID_QLOGIC_QLE834X,
201 PCI_VENDOR_ID_QLOGIC,
202 0x260,
203 "8300 Series Dual Port 10GbE Converged Network Adapter "
204 "(TCP/IP Networking)" },
205 { PCI_VENDOR_ID_QLOGIC,
206 PCI_DEVICE_ID_QLOGIC_QLE834X,
207 PCI_VENDOR_ID_QLOGIC,
208 0x266,
209 "8300 Series Single Port 10GbE Converged Network Adapter "
210 "(TCP/IP Networking)" },
211 { PCI_VENDOR_ID_QLOGIC,
212 PCI_DEVICE_ID_QLOGIC_QLE834X,
213 PCI_VENDOR_ID_QLOGIC,
214 0x269,
215 "8300 Series Dual Port 10GbE Converged Network Adapter "
216 "(TCP/IP Networking)" },
217 { PCI_VENDOR_ID_QLOGIC,
218 PCI_DEVICE_ID_QLOGIC_QLE834X,
219 PCI_VENDOR_ID_QLOGIC,
220 0x271,
221 "8300 Series Dual Port 10GbE Converged Network Adapter "
222 "(TCP/IP Networking)" },
223 { PCI_VENDOR_ID_QLOGIC,
224 PCI_DEVICE_ID_QLOGIC_QLE834X,
225 0x0, 0x0, "8300 Series 1/10GbE Controller" },
226 { PCI_VENDOR_ID_QLOGIC,
227 PCI_DEVICE_ID_QLOGIC_QLE8830,
228 0x0,
229 0x0,
230 "8830 Series 1/10GbE Controller" },
231 { PCI_VENDOR_ID_QLOGIC,
232 PCI_DEVICE_ID_QLOGIC_QLE824X,
233 PCI_VENDOR_ID_QLOGIC,
234 0x203,
235 "8200 Series Single Port 10GbE Converged Network Adapter"
236 "(TCP/IP Networking)" },
237 { PCI_VENDOR_ID_QLOGIC,
238 PCI_DEVICE_ID_QLOGIC_QLE824X,
239 PCI_VENDOR_ID_QLOGIC,
240 0x207,
241 "8200 Series Dual Port 10GbE Converged Network Adapter"
242 "(TCP/IP Networking)" },
243 { PCI_VENDOR_ID_QLOGIC,
244 PCI_DEVICE_ID_QLOGIC_QLE824X,
245 PCI_VENDOR_ID_QLOGIC,
246 0x20b,
247 "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
248 { PCI_VENDOR_ID_QLOGIC,
249 PCI_DEVICE_ID_QLOGIC_QLE824X,
250 PCI_VENDOR_ID_QLOGIC,
251 0x20c,
252 "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
253 { PCI_VENDOR_ID_QLOGIC,
254 PCI_DEVICE_ID_QLOGIC_QLE824X,
255 PCI_VENDOR_ID_QLOGIC,
256 0x20f,
257 "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
258 { PCI_VENDOR_ID_QLOGIC,
259 PCI_DEVICE_ID_QLOGIC_QLE824X,
260 0x103c, 0x3733,
261 "NC523SFP 10Gb 2-port Server Adapter" },
262 { PCI_VENDOR_ID_QLOGIC,
263 PCI_DEVICE_ID_QLOGIC_QLE824X,
264 0x103c, 0x3346,
265 "CN1000Q Dual Port Converged Network Adapter" },
266 { PCI_VENDOR_ID_QLOGIC,
267 PCI_DEVICE_ID_QLOGIC_QLE824X,
268 PCI_VENDOR_ID_QLOGIC,
269 0x210,
270 "QME8242-k 10GbE Dual Port Mezzanine Card" },
271 { PCI_VENDOR_ID_QLOGIC,
272 PCI_DEVICE_ID_QLOGIC_QLE824X,
273 0x0, 0x0, "cLOM8214 1/10GbE Controller" },
274 };
275
276 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
277
278 static const
279 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
280
qlcnic_alloc_sds_rings(struct qlcnic_recv_context * recv_ctx,int count)281 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
282 {
283 int size = sizeof(struct qlcnic_host_sds_ring) * count;
284
285 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
286
287 return recv_ctx->sds_rings == NULL;
288 }
289
qlcnic_free_sds_rings(struct qlcnic_recv_context * recv_ctx)290 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
291 {
292 kfree(recv_ctx->sds_rings);
293 recv_ctx->sds_rings = NULL;
294 }
295
qlcnic_read_mac_addr(struct qlcnic_adapter * adapter)296 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
297 {
298 struct net_device *netdev = adapter->netdev;
299 struct pci_dev *pdev = adapter->pdev;
300 u8 mac_addr[ETH_ALEN];
301 int ret;
302
303 ret = qlcnic_get_mac_address(adapter, mac_addr,
304 adapter->ahw->pci_func);
305 if (ret)
306 return ret;
307
308 memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
309 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
310
311 /* set station address */
312
313 if (!is_valid_ether_addr(netdev->dev_addr))
314 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
315 netdev->dev_addr);
316
317 return 0;
318 }
319
qlcnic_delete_adapter_mac(struct qlcnic_adapter * adapter)320 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
321 {
322 struct qlcnic_mac_vlan_list *cur;
323 struct list_head *head;
324
325 list_for_each(head, &adapter->mac_list) {
326 cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
327 if (ether_addr_equal_unaligned(adapter->mac_addr, cur->mac_addr)) {
328 qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
329 0, QLCNIC_MAC_DEL);
330 list_del(&cur->list);
331 kfree(cur);
332 return;
333 }
334 }
335 }
336
qlcnic_set_mac(struct net_device * netdev,void * p)337 static int qlcnic_set_mac(struct net_device *netdev, void *p)
338 {
339 struct qlcnic_adapter *adapter = netdev_priv(netdev);
340 struct sockaddr *addr = p;
341
342 if (qlcnic_sriov_vf_check(adapter))
343 return -EINVAL;
344
345 if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
346 return -EOPNOTSUPP;
347
348 if (!is_valid_ether_addr(addr->sa_data))
349 return -EINVAL;
350
351 if (ether_addr_equal_unaligned(adapter->mac_addr, addr->sa_data) &&
352 ether_addr_equal_unaligned(netdev->dev_addr, addr->sa_data))
353 return 0;
354
355 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
356 netif_device_detach(netdev);
357 qlcnic_napi_disable(adapter);
358 }
359
360 qlcnic_delete_adapter_mac(adapter);
361 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
362 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
363 qlcnic_set_multi(adapter->netdev);
364
365 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
366 netif_device_attach(netdev);
367 qlcnic_napi_enable(adapter);
368 }
369 return 0;
370 }
371
qlcnic_fdb_del(struct ndmsg * ndm,struct nlattr * tb[],struct net_device * netdev,const unsigned char * addr,u16 vid)372 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
373 struct net_device *netdev,
374 const unsigned char *addr, u16 vid)
375 {
376 struct qlcnic_adapter *adapter = netdev_priv(netdev);
377 int err = -EOPNOTSUPP;
378
379 if (!adapter->fdb_mac_learn)
380 return ndo_dflt_fdb_del(ndm, tb, netdev, addr, vid);
381
382 if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
383 qlcnic_sriov_check(adapter)) {
384 if (is_unicast_ether_addr(addr)) {
385 err = dev_uc_del(netdev, addr);
386 if (!err)
387 err = qlcnic_nic_del_mac(adapter, addr);
388 } else if (is_multicast_ether_addr(addr)) {
389 err = dev_mc_del(netdev, addr);
390 } else {
391 err = -EINVAL;
392 }
393 }
394 return err;
395 }
396
qlcnic_fdb_add(struct ndmsg * ndm,struct nlattr * tb[],struct net_device * netdev,const unsigned char * addr,u16 vid,u16 flags,struct netlink_ext_ack * extack)397 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
398 struct net_device *netdev,
399 const unsigned char *addr, u16 vid, u16 flags,
400 struct netlink_ext_ack *extack)
401 {
402 struct qlcnic_adapter *adapter = netdev_priv(netdev);
403 int err = 0;
404
405 if (!adapter->fdb_mac_learn)
406 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, vid, flags);
407
408 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
409 !qlcnic_sriov_check(adapter)) {
410 pr_info("%s: FDB e-switch is not enabled\n", __func__);
411 return -EOPNOTSUPP;
412 }
413
414 if (ether_addr_equal(addr, adapter->mac_addr))
415 return err;
416
417 if (is_unicast_ether_addr(addr)) {
418 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
419 err = dev_uc_add_excl(netdev, addr);
420 else
421 err = -ENOMEM;
422 } else if (is_multicast_ether_addr(addr)) {
423 err = dev_mc_add_excl(netdev, addr);
424 } else {
425 err = -EINVAL;
426 }
427
428 return err;
429 }
430
qlcnic_fdb_dump(struct sk_buff * skb,struct netlink_callback * ncb,struct net_device * netdev,struct net_device * filter_dev,int * idx)431 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
432 struct net_device *netdev,
433 struct net_device *filter_dev, int *idx)
434 {
435 struct qlcnic_adapter *adapter = netdev_priv(netdev);
436 int err = 0;
437
438 if (!adapter->fdb_mac_learn)
439 return ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
440
441 if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
442 qlcnic_sriov_check(adapter))
443 err = ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
444
445 return err;
446 }
447
qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter * adapter)448 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
449 {
450 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
451 usleep_range(10000, 11000);
452
453 if (!adapter->fw_work.work.func)
454 return;
455
456 cancel_delayed_work_sync(&adapter->fw_work);
457 }
458
qlcnic_get_phys_port_id(struct net_device * netdev,struct netdev_phys_item_id * ppid)459 static int qlcnic_get_phys_port_id(struct net_device *netdev,
460 struct netdev_phys_item_id *ppid)
461 {
462 struct qlcnic_adapter *adapter = netdev_priv(netdev);
463 struct qlcnic_hardware_context *ahw = adapter->ahw;
464
465 if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
466 return -EOPNOTSUPP;
467
468 ppid->id_len = sizeof(ahw->phys_port_id);
469 memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
470
471 return 0;
472 }
473
qlcnic_add_vxlan_port(struct net_device * netdev,struct udp_tunnel_info * ti)474 static void qlcnic_add_vxlan_port(struct net_device *netdev,
475 struct udp_tunnel_info *ti)
476 {
477 struct qlcnic_adapter *adapter = netdev_priv(netdev);
478 struct qlcnic_hardware_context *ahw = adapter->ahw;
479
480 if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
481 return;
482
483 /* Adapter supports only one VXLAN port. Use very first port
484 * for enabling offload
485 */
486 if (!qlcnic_encap_rx_offload(adapter))
487 return;
488 if (!ahw->vxlan_port_count) {
489 ahw->vxlan_port_count = 1;
490 ahw->vxlan_port = ntohs(ti->port);
491 adapter->flags |= QLCNIC_ADD_VXLAN_PORT;
492 return;
493 }
494 if (ahw->vxlan_port == ntohs(ti->port))
495 ahw->vxlan_port_count++;
496
497 }
498
qlcnic_del_vxlan_port(struct net_device * netdev,struct udp_tunnel_info * ti)499 static void qlcnic_del_vxlan_port(struct net_device *netdev,
500 struct udp_tunnel_info *ti)
501 {
502 struct qlcnic_adapter *adapter = netdev_priv(netdev);
503 struct qlcnic_hardware_context *ahw = adapter->ahw;
504
505 if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
506 return;
507
508 if (!qlcnic_encap_rx_offload(adapter) || !ahw->vxlan_port_count ||
509 (ahw->vxlan_port != ntohs(ti->port)))
510 return;
511
512 ahw->vxlan_port_count--;
513 if (!ahw->vxlan_port_count)
514 adapter->flags |= QLCNIC_DEL_VXLAN_PORT;
515 }
516
qlcnic_features_check(struct sk_buff * skb,struct net_device * dev,netdev_features_t features)517 static netdev_features_t qlcnic_features_check(struct sk_buff *skb,
518 struct net_device *dev,
519 netdev_features_t features)
520 {
521 features = vlan_features_check(skb, features);
522 return vxlan_features_check(skb, features);
523 }
524
525 static const struct net_device_ops qlcnic_netdev_ops = {
526 .ndo_open = qlcnic_open,
527 .ndo_stop = qlcnic_close,
528 .ndo_start_xmit = qlcnic_xmit_frame,
529 .ndo_get_stats = qlcnic_get_stats,
530 .ndo_validate_addr = eth_validate_addr,
531 .ndo_set_rx_mode = qlcnic_set_multi,
532 .ndo_set_mac_address = qlcnic_set_mac,
533 .ndo_change_mtu = qlcnic_change_mtu,
534 .ndo_fix_features = qlcnic_fix_features,
535 .ndo_set_features = qlcnic_set_features,
536 .ndo_tx_timeout = qlcnic_tx_timeout,
537 .ndo_vlan_rx_add_vid = qlcnic_vlan_rx_add,
538 .ndo_vlan_rx_kill_vid = qlcnic_vlan_rx_del,
539 .ndo_fdb_add = qlcnic_fdb_add,
540 .ndo_fdb_del = qlcnic_fdb_del,
541 .ndo_fdb_dump = qlcnic_fdb_dump,
542 .ndo_get_phys_port_id = qlcnic_get_phys_port_id,
543 .ndo_udp_tunnel_add = qlcnic_add_vxlan_port,
544 .ndo_udp_tunnel_del = qlcnic_del_vxlan_port,
545 .ndo_features_check = qlcnic_features_check,
546 #ifdef CONFIG_QLCNIC_SRIOV
547 .ndo_set_vf_mac = qlcnic_sriov_set_vf_mac,
548 .ndo_set_vf_rate = qlcnic_sriov_set_vf_tx_rate,
549 .ndo_get_vf_config = qlcnic_sriov_get_vf_config,
550 .ndo_set_vf_vlan = qlcnic_sriov_set_vf_vlan,
551 .ndo_set_vf_spoofchk = qlcnic_sriov_set_vf_spoofchk,
552 #endif
553 };
554
555 static const struct net_device_ops qlcnic_netdev_failed_ops = {
556 .ndo_open = qlcnic_open,
557 };
558
559 static struct qlcnic_nic_template qlcnic_ops = {
560 .config_bridged_mode = qlcnic_config_bridged_mode,
561 .config_led = qlcnic_82xx_config_led,
562 .start_firmware = qlcnic_82xx_start_firmware,
563 .request_reset = qlcnic_82xx_dev_request_reset,
564 .cancel_idc_work = qlcnic_82xx_cancel_idc_work,
565 .napi_add = qlcnic_82xx_napi_add,
566 .napi_del = qlcnic_82xx_napi_del,
567 .config_ipaddr = qlcnic_82xx_config_ipaddr,
568 .shutdown = qlcnic_82xx_shutdown,
569 .resume = qlcnic_82xx_resume,
570 .clear_legacy_intr = qlcnic_82xx_clear_legacy_intr,
571 };
572
573 struct qlcnic_nic_template qlcnic_vf_ops = {
574 .config_bridged_mode = qlcnicvf_config_bridged_mode,
575 .config_led = qlcnicvf_config_led,
576 .start_firmware = qlcnicvf_start_firmware
577 };
578
579 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
580 .read_crb = qlcnic_82xx_read_crb,
581 .write_crb = qlcnic_82xx_write_crb,
582 .read_reg = qlcnic_82xx_hw_read_wx_2M,
583 .write_reg = qlcnic_82xx_hw_write_wx_2M,
584 .get_mac_address = qlcnic_82xx_get_mac_address,
585 .setup_intr = qlcnic_82xx_setup_intr,
586 .alloc_mbx_args = qlcnic_82xx_alloc_mbx_args,
587 .mbx_cmd = qlcnic_82xx_issue_cmd,
588 .get_func_no = qlcnic_82xx_get_func_no,
589 .api_lock = qlcnic_82xx_api_lock,
590 .api_unlock = qlcnic_82xx_api_unlock,
591 .add_sysfs = qlcnic_82xx_add_sysfs,
592 .remove_sysfs = qlcnic_82xx_remove_sysfs,
593 .process_lb_rcv_ring_diag = qlcnic_82xx_process_rcv_ring_diag,
594 .create_rx_ctx = qlcnic_82xx_fw_cmd_create_rx_ctx,
595 .create_tx_ctx = qlcnic_82xx_fw_cmd_create_tx_ctx,
596 .del_rx_ctx = qlcnic_82xx_fw_cmd_del_rx_ctx,
597 .del_tx_ctx = qlcnic_82xx_fw_cmd_del_tx_ctx,
598 .setup_link_event = qlcnic_82xx_linkevent_request,
599 .get_nic_info = qlcnic_82xx_get_nic_info,
600 .get_pci_info = qlcnic_82xx_get_pci_info,
601 .set_nic_info = qlcnic_82xx_set_nic_info,
602 .change_macvlan = qlcnic_82xx_sre_macaddr_change,
603 .napi_enable = qlcnic_82xx_napi_enable,
604 .napi_disable = qlcnic_82xx_napi_disable,
605 .config_intr_coal = qlcnic_82xx_config_intr_coalesce,
606 .config_rss = qlcnic_82xx_config_rss,
607 .config_hw_lro = qlcnic_82xx_config_hw_lro,
608 .config_loopback = qlcnic_82xx_set_lb_mode,
609 .clear_loopback = qlcnic_82xx_clear_lb_mode,
610 .config_promisc_mode = qlcnic_82xx_nic_set_promisc,
611 .change_l2_filter = qlcnic_82xx_change_filter,
612 .get_board_info = qlcnic_82xx_get_board_info,
613 .set_mac_filter_count = qlcnic_82xx_set_mac_filter_count,
614 .free_mac_list = qlcnic_82xx_free_mac_list,
615 .read_phys_port_id = qlcnic_82xx_read_phys_port_id,
616 .io_error_detected = qlcnic_82xx_io_error_detected,
617 .io_slot_reset = qlcnic_82xx_io_slot_reset,
618 .io_resume = qlcnic_82xx_io_resume,
619 .get_beacon_state = qlcnic_82xx_get_beacon_state,
620 .enable_sds_intr = qlcnic_82xx_enable_sds_intr,
621 .disable_sds_intr = qlcnic_82xx_disable_sds_intr,
622 .enable_tx_intr = qlcnic_82xx_enable_tx_intr,
623 .disable_tx_intr = qlcnic_82xx_disable_tx_intr,
624 .get_saved_state = qlcnic_82xx_get_saved_state,
625 .set_saved_state = qlcnic_82xx_set_saved_state,
626 .cache_tmpl_hdr_values = qlcnic_82xx_cache_tmpl_hdr_values,
627 .get_cap_size = qlcnic_82xx_get_cap_size,
628 .set_sys_info = qlcnic_82xx_set_sys_info,
629 .store_cap_mask = qlcnic_82xx_store_cap_mask,
630 .encap_rx_offload = qlcnic_82xx_encap_rx_offload,
631 .encap_tx_offload = qlcnic_82xx_encap_tx_offload,
632 };
633
qlcnic_check_multi_tx_capability(struct qlcnic_adapter * adapter)634 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
635 {
636 struct qlcnic_hardware_context *ahw = adapter->ahw;
637
638 if (qlcnic_82xx_check(adapter) &&
639 (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
640 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
641 return 0;
642 } else {
643 return 1;
644 }
645 }
646
qlcnic_max_rings(struct qlcnic_adapter * adapter,u8 ring_cnt,int queue_type)647 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
648 int queue_type)
649 {
650 int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
651
652 if (queue_type == QLCNIC_RX_QUEUE)
653 max_rings = adapter->max_sds_rings;
654 else if (queue_type == QLCNIC_TX_QUEUE)
655 max_rings = adapter->max_tx_rings;
656
657 num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
658 max_rings));
659
660 if (ring_cnt > num_rings)
661 return num_rings;
662 else
663 return ring_cnt;
664 }
665
qlcnic_set_tx_ring_count(struct qlcnic_adapter * adapter,u8 tx_cnt)666 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
667 {
668 /* 83xx adapter does not have max_tx_rings intialized in probe */
669 if (adapter->max_tx_rings)
670 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
671 QLCNIC_TX_QUEUE);
672 else
673 adapter->drv_tx_rings = tx_cnt;
674 }
675
qlcnic_set_sds_ring_count(struct qlcnic_adapter * adapter,u8 rx_cnt)676 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
677 {
678 /* 83xx adapter does not have max_sds_rings intialized in probe */
679 if (adapter->max_sds_rings)
680 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
681 QLCNIC_RX_QUEUE);
682 else
683 adapter->drv_sds_rings = rx_cnt;
684 }
685
qlcnic_setup_tss_rss_intr(struct qlcnic_adapter * adapter)686 int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
687 {
688 struct pci_dev *pdev = adapter->pdev;
689 int num_msix = 0, err = 0, vector;
690
691 adapter->flags &= ~QLCNIC_TSS_RSS;
692
693 if (adapter->drv_tss_rings > 0)
694 num_msix += adapter->drv_tss_rings;
695 else
696 num_msix += adapter->drv_tx_rings;
697
698 if (adapter->drv_rss_rings > 0)
699 num_msix += adapter->drv_rss_rings;
700 else
701 num_msix += adapter->drv_sds_rings;
702
703 if (qlcnic_83xx_check(adapter))
704 num_msix += 1;
705
706 if (!adapter->msix_entries) {
707 adapter->msix_entries = kcalloc(num_msix,
708 sizeof(struct msix_entry),
709 GFP_KERNEL);
710 if (!adapter->msix_entries)
711 return -ENOMEM;
712 }
713
714 for (vector = 0; vector < num_msix; vector++)
715 adapter->msix_entries[vector].entry = vector;
716
717 restore:
718 err = pci_enable_msix_exact(pdev, adapter->msix_entries, num_msix);
719 if (err == -ENOSPC) {
720 if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
721 return err;
722
723 netdev_info(adapter->netdev,
724 "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
725 num_msix, err);
726
727 num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
728
729 /* Set rings to 0 so we can restore original TSS/RSS count */
730 adapter->drv_tss_rings = 0;
731 adapter->drv_rss_rings = 0;
732
733 if (qlcnic_83xx_check(adapter))
734 num_msix += 1;
735
736 netdev_info(adapter->netdev,
737 "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
738 adapter->drv_tx_rings, adapter->drv_sds_rings,
739 num_msix);
740
741 goto restore;
742 } else if (err < 0) {
743 return err;
744 }
745
746 adapter->ahw->num_msix = num_msix;
747 if (adapter->drv_tss_rings > 0)
748 adapter->drv_tx_rings = adapter->drv_tss_rings;
749
750 if (adapter->drv_rss_rings > 0)
751 adapter->drv_sds_rings = adapter->drv_rss_rings;
752
753 return 0;
754 }
755
qlcnic_enable_msix(struct qlcnic_adapter * adapter,u32 num_msix)756 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
757 {
758 struct pci_dev *pdev = adapter->pdev;
759 int err, vector;
760
761 if (!adapter->msix_entries) {
762 adapter->msix_entries = kcalloc(num_msix,
763 sizeof(struct msix_entry),
764 GFP_KERNEL);
765 if (!adapter->msix_entries)
766 return -ENOMEM;
767 }
768
769 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
770
771 if (adapter->ahw->msix_supported) {
772 enable_msix:
773 for (vector = 0; vector < num_msix; vector++)
774 adapter->msix_entries[vector].entry = vector;
775
776 err = pci_enable_msix_range(pdev,
777 adapter->msix_entries, 1, num_msix);
778
779 if (err == num_msix) {
780 adapter->flags |= QLCNIC_MSIX_ENABLED;
781 adapter->ahw->num_msix = num_msix;
782 dev_info(&pdev->dev, "using msi-x interrupts\n");
783 return 0;
784 } else if (err > 0) {
785 pci_disable_msix(pdev);
786
787 dev_info(&pdev->dev,
788 "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
789 num_msix, err);
790
791 if (qlcnic_82xx_check(adapter)) {
792 num_msix = rounddown_pow_of_two(err);
793 if (err < QLCNIC_82XX_MINIMUM_VECTOR)
794 return -ENOSPC;
795 } else {
796 num_msix = rounddown_pow_of_two(err - 1);
797 num_msix += 1;
798 if (err < QLCNIC_83XX_MINIMUM_VECTOR)
799 return -ENOSPC;
800 }
801
802 if (qlcnic_82xx_check(adapter) &&
803 !qlcnic_check_multi_tx(adapter)) {
804 adapter->drv_sds_rings = num_msix;
805 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
806 } else {
807 /* Distribute vectors equally */
808 adapter->drv_tx_rings = num_msix / 2;
809 adapter->drv_sds_rings = adapter->drv_tx_rings;
810 }
811
812 if (num_msix) {
813 dev_info(&pdev->dev,
814 "Trying to allocate %d MSI-X interrupt vectors\n",
815 num_msix);
816 goto enable_msix;
817 }
818 } else {
819 dev_info(&pdev->dev,
820 "Unable to allocate %d MSI-X vectors, err=%d\n",
821 num_msix, err);
822 return err;
823 }
824 }
825
826 return -EIO;
827 }
828
qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter * adapter)829 static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
830 {
831 int num_msix;
832
833 num_msix = adapter->drv_sds_rings;
834
835 if (qlcnic_check_multi_tx(adapter))
836 num_msix += adapter->drv_tx_rings;
837 else
838 num_msix += QLCNIC_SINGLE_RING;
839
840 return num_msix;
841 }
842
qlcnic_enable_msi_legacy(struct qlcnic_adapter * adapter)843 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
844 {
845 int err = 0;
846 u32 offset, mask_reg;
847 const struct qlcnic_legacy_intr_set *legacy_intrp;
848 struct qlcnic_hardware_context *ahw = adapter->ahw;
849 struct pci_dev *pdev = adapter->pdev;
850
851 if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
852 adapter->flags |= QLCNIC_MSI_ENABLED;
853 offset = msi_tgt_status[adapter->ahw->pci_func];
854 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
855 offset);
856 dev_info(&pdev->dev, "using msi interrupts\n");
857 adapter->msix_entries[0].vector = pdev->irq;
858 return err;
859 }
860
861 if (qlcnic_use_msi || qlcnic_use_msi_x)
862 return -EOPNOTSUPP;
863
864 legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
865 adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
866 offset = legacy_intrp->tgt_status_reg;
867 adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
868 mask_reg = legacy_intrp->tgt_mask_reg;
869 adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
870 adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
871 adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
872 dev_info(&pdev->dev, "using legacy interrupts\n");
873 adapter->msix_entries[0].vector = pdev->irq;
874 return err;
875 }
876
qlcnic_82xx_setup_intr(struct qlcnic_adapter * adapter)877 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
878 {
879 int num_msix, err = 0;
880
881 if (adapter->flags & QLCNIC_TSS_RSS) {
882 err = qlcnic_setup_tss_rss_intr(adapter);
883 if (err < 0)
884 return err;
885 num_msix = adapter->ahw->num_msix;
886 } else {
887 num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
888
889 err = qlcnic_enable_msix(adapter, num_msix);
890 if (err == -ENOMEM)
891 return err;
892
893 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
894 qlcnic_disable_multi_tx(adapter);
895 adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
896
897 err = qlcnic_enable_msi_legacy(adapter);
898 if (err)
899 return err;
900 }
901 }
902
903 return 0;
904 }
905
qlcnic_82xx_mq_intrpt(struct qlcnic_adapter * adapter,int op_type)906 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
907 {
908 struct qlcnic_hardware_context *ahw = adapter->ahw;
909 int err, i;
910
911 if (qlcnic_check_multi_tx(adapter) &&
912 !ahw->diag_test &&
913 (adapter->flags & QLCNIC_MSIX_ENABLED)) {
914 ahw->intr_tbl =
915 vzalloc(array_size(sizeof(struct qlcnic_intrpt_config),
916 ahw->num_msix));
917 if (!ahw->intr_tbl)
918 return -ENOMEM;
919
920 for (i = 0; i < ahw->num_msix; i++) {
921 ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
922 ahw->intr_tbl[i].id = i;
923 ahw->intr_tbl[i].src = 0;
924 }
925
926 err = qlcnic_82xx_config_intrpt(adapter, 1);
927 if (err)
928 dev_err(&adapter->pdev->dev,
929 "Failed to configure Interrupt for %d vector\n",
930 ahw->num_msix);
931 return err;
932 }
933
934 return 0;
935 }
936
qlcnic_teardown_intr(struct qlcnic_adapter * adapter)937 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
938 {
939 if (adapter->flags & QLCNIC_MSIX_ENABLED)
940 pci_disable_msix(adapter->pdev);
941 if (adapter->flags & QLCNIC_MSI_ENABLED)
942 pci_disable_msi(adapter->pdev);
943
944 kfree(adapter->msix_entries);
945 adapter->msix_entries = NULL;
946
947 if (adapter->ahw->intr_tbl) {
948 vfree(adapter->ahw->intr_tbl);
949 adapter->ahw->intr_tbl = NULL;
950 }
951 }
952
qlcnic_cleanup_pci_map(struct qlcnic_hardware_context * ahw)953 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
954 {
955 if (ahw->pci_base0 != NULL)
956 iounmap(ahw->pci_base0);
957 }
958
qlcnic_get_act_pci_func(struct qlcnic_adapter * adapter)959 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
960 {
961 struct qlcnic_hardware_context *ahw = adapter->ahw;
962 struct qlcnic_pci_info *pci_info;
963 int ret;
964
965 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
966 switch (ahw->port_type) {
967 case QLCNIC_GBE:
968 ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
969 break;
970 case QLCNIC_XGBE:
971 ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
972 break;
973 }
974 return 0;
975 }
976
977 if (ahw->op_mode == QLCNIC_MGMT_FUNC)
978 return 0;
979
980 pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
981 if (!pci_info)
982 return -ENOMEM;
983
984 ret = qlcnic_get_pci_info(adapter, pci_info);
985 kfree(pci_info);
986 return ret;
987 }
988
qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter * adapter)989 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
990 {
991 bool ret = false;
992
993 if (qlcnic_84xx_check(adapter)) {
994 ret = true;
995 } else if (qlcnic_83xx_check(adapter)) {
996 if (adapter->ahw->extra_capability[0] &
997 QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
998 ret = true;
999 else
1000 ret = false;
1001 }
1002
1003 return ret;
1004 }
1005
qlcnic_init_pci_info(struct qlcnic_adapter * adapter)1006 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
1007 {
1008 struct qlcnic_hardware_context *ahw = adapter->ahw;
1009 struct qlcnic_pci_info *pci_info;
1010 int i, id = 0, ret = 0, j = 0;
1011 u16 act_pci_func;
1012 u8 pfn;
1013
1014 pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
1015 if (!pci_info)
1016 return -ENOMEM;
1017
1018 ret = qlcnic_get_pci_info(adapter, pci_info);
1019 if (ret)
1020 goto err_pci_info;
1021
1022 act_pci_func = ahw->total_nic_func;
1023
1024 adapter->npars = kcalloc(act_pci_func,
1025 sizeof(struct qlcnic_npar_info),
1026 GFP_KERNEL);
1027 if (!adapter->npars) {
1028 ret = -ENOMEM;
1029 goto err_pci_info;
1030 }
1031
1032 adapter->eswitch = kcalloc(QLCNIC_NIU_MAX_XG_PORTS,
1033 sizeof(struct qlcnic_eswitch),
1034 GFP_KERNEL);
1035 if (!adapter->eswitch) {
1036 ret = -ENOMEM;
1037 goto err_npars;
1038 }
1039
1040 for (i = 0; i < ahw->max_vnic_func; i++) {
1041 pfn = pci_info[i].id;
1042
1043 if (pfn >= ahw->max_vnic_func) {
1044 ret = -EINVAL;
1045 dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
1046 __func__, pfn, ahw->max_vnic_func);
1047 goto err_eswitch;
1048 }
1049
1050 if (!pci_info[i].active ||
1051 (pci_info[i].type != QLCNIC_TYPE_NIC))
1052 continue;
1053
1054 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1055 if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1056 &id))
1057 adapter->npars[j].eswitch_status = true;
1058 else
1059 continue;
1060 } else {
1061 adapter->npars[j].eswitch_status = true;
1062 }
1063
1064 adapter->npars[j].pci_func = pfn;
1065 adapter->npars[j].active = (u8)pci_info[i].active;
1066 adapter->npars[j].type = (u8)pci_info[i].type;
1067 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1068 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1069 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1070
1071 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1072 j++;
1073 }
1074
1075 /* Update eSwitch status for adapters without per port eSwitch
1076 * configuration capability
1077 */
1078 if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1079 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1080 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1081 }
1082
1083 kfree(pci_info);
1084 return 0;
1085
1086 err_eswitch:
1087 kfree(adapter->eswitch);
1088 adapter->eswitch = NULL;
1089 err_npars:
1090 kfree(adapter->npars);
1091 adapter->npars = NULL;
1092 err_pci_info:
1093 kfree(pci_info);
1094
1095 return ret;
1096 }
1097
1098 static int
qlcnic_set_function_modes(struct qlcnic_adapter * adapter)1099 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1100 {
1101 u8 id;
1102 int ret;
1103 u32 data = QLCNIC_MGMT_FUNC;
1104 struct qlcnic_hardware_context *ahw = adapter->ahw;
1105
1106 ret = qlcnic_api_lock(adapter);
1107 if (ret)
1108 goto err_lock;
1109
1110 id = ahw->pci_func;
1111 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1112 data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1113 QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1114 QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1115 qlcnic_api_unlock(adapter);
1116 err_lock:
1117 return ret;
1118 }
1119
qlcnic_check_vf(struct qlcnic_adapter * adapter,const struct pci_device_id * ent)1120 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1121 const struct pci_device_id *ent)
1122 {
1123 u32 op_mode, priv_level;
1124
1125 /* Determine FW API version */
1126 adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1127 QLCNIC_FW_API);
1128
1129 /* Find PCI function number */
1130 qlcnic_get_func_no(adapter);
1131
1132 /* Determine function privilege level */
1133 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1134 if (op_mode == QLC_DEV_DRV_DEFAULT)
1135 priv_level = QLCNIC_MGMT_FUNC;
1136 else
1137 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1138
1139 if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1140 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1141 dev_info(&adapter->pdev->dev,
1142 "HAL Version: %d Non Privileged function\n",
1143 adapter->ahw->fw_hal_version);
1144 adapter->nic_ops = &qlcnic_vf_ops;
1145 } else
1146 adapter->nic_ops = &qlcnic_ops;
1147 }
1148
1149 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1150 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
qlcnic_get_bar_length(u32 dev_id,ulong * bar)1151 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1152 {
1153 switch (dev_id) {
1154 case PCI_DEVICE_ID_QLOGIC_QLE824X:
1155 *bar = QLCNIC_82XX_BAR0_LENGTH;
1156 break;
1157 case PCI_DEVICE_ID_QLOGIC_QLE834X:
1158 case PCI_DEVICE_ID_QLOGIC_QLE8830:
1159 case PCI_DEVICE_ID_QLOGIC_QLE844X:
1160 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1161 case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1162 case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
1163 *bar = QLCNIC_83XX_BAR0_LENGTH;
1164 break;
1165 default:
1166 *bar = 0;
1167 }
1168 }
1169
qlcnic_setup_pci_map(struct pci_dev * pdev,struct qlcnic_hardware_context * ahw)1170 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1171 struct qlcnic_hardware_context *ahw)
1172 {
1173 u32 offset;
1174 void __iomem *mem_ptr0 = NULL;
1175 unsigned long mem_len, pci_len0 = 0, bar0_len;
1176
1177 /* remap phys address */
1178 mem_len = pci_resource_len(pdev, 0);
1179
1180 qlcnic_get_bar_length(pdev->device, &bar0_len);
1181 if (mem_len >= bar0_len) {
1182
1183 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1184 if (mem_ptr0 == NULL) {
1185 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1186 return -EIO;
1187 }
1188 pci_len0 = mem_len;
1189 } else {
1190 return -EIO;
1191 }
1192
1193 dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1194
1195 ahw->pci_base0 = mem_ptr0;
1196 ahw->pci_len0 = pci_len0;
1197 offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1198 qlcnic_get_ioaddr(ahw, offset);
1199
1200 return 0;
1201 }
1202
qlcnic_validate_subsystem_id(struct qlcnic_adapter * adapter,int index)1203 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1204 int index)
1205 {
1206 struct pci_dev *pdev = adapter->pdev;
1207 unsigned short subsystem_vendor;
1208 bool ret = true;
1209
1210 subsystem_vendor = pdev->subsystem_vendor;
1211
1212 if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1213 pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1214 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1215 qlcnic_boards[index].sub_device == pdev->subsystem_device)
1216 ret = true;
1217 else
1218 ret = false;
1219 }
1220
1221 return ret;
1222 }
1223
qlcnic_get_board_name(struct qlcnic_adapter * adapter,char * name)1224 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1225 {
1226 struct pci_dev *pdev = adapter->pdev;
1227 int i, found = 0;
1228
1229 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1230 if (qlcnic_boards[i].vendor == pdev->vendor &&
1231 qlcnic_boards[i].device == pdev->device &&
1232 qlcnic_validate_subsystem_id(adapter, i)) {
1233 found = 1;
1234 break;
1235 }
1236 }
1237
1238 if (!found)
1239 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1240 else
1241 sprintf(name, "%pM: %s" , adapter->mac_addr,
1242 qlcnic_boards[i].short_name);
1243 }
1244
1245 static void
qlcnic_check_options(struct qlcnic_adapter * adapter)1246 qlcnic_check_options(struct qlcnic_adapter *adapter)
1247 {
1248 int err;
1249 u32 fw_major, fw_minor, fw_build, prev_fw_version;
1250 struct pci_dev *pdev = adapter->pdev;
1251 struct qlcnic_hardware_context *ahw = adapter->ahw;
1252 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1253
1254 prev_fw_version = adapter->fw_version;
1255
1256 fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1257 fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1258 fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1259
1260 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1261
1262 err = qlcnic_get_board_info(adapter);
1263 if (err) {
1264 dev_err(&pdev->dev, "Error getting board config info.\n");
1265 return;
1266 }
1267 if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1268 if (fw_dump->tmpl_hdr == NULL ||
1269 adapter->fw_version > prev_fw_version) {
1270 vfree(fw_dump->tmpl_hdr);
1271 if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1272 dev_info(&pdev->dev,
1273 "Supports FW dump capability\n");
1274 }
1275 }
1276
1277 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1278 QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1279
1280 if (adapter->ahw->port_type == QLCNIC_XGBE) {
1281 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1282 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1283 adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1284 } else {
1285 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1286 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1287 }
1288
1289 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1290 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1291
1292 } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1293 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1294 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1295 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1296 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1297 }
1298
1299 adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1300
1301 adapter->num_txd = MAX_CMD_DESCRIPTORS;
1302
1303 adapter->max_rds_rings = MAX_RDS_RINGS;
1304 }
1305
1306 static int
qlcnic_initialize_nic(struct qlcnic_adapter * adapter)1307 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1308 {
1309 struct qlcnic_info nic_info;
1310 int err = 0;
1311
1312 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1313 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1314 if (err)
1315 return err;
1316
1317 adapter->ahw->physical_port = (u8)nic_info.phys_port;
1318 adapter->ahw->switch_mode = nic_info.switch_mode;
1319 adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1320 adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1321 adapter->ahw->capabilities = nic_info.capabilities;
1322
1323 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1324 u32 temp;
1325 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1326 if (err == -EIO)
1327 return err;
1328 adapter->ahw->extra_capability[0] = temp;
1329 } else {
1330 adapter->ahw->extra_capability[0] = 0;
1331 }
1332
1333 adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1334 adapter->ahw->max_mtu = nic_info.max_mtu;
1335
1336 if (adapter->ahw->capabilities & BIT_6) {
1337 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1338 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1339 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1340 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1341
1342 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1343 } else {
1344 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1345 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1346 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1347 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1348 }
1349
1350 return err;
1351 }
1352
qlcnic_set_vlan_config(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1353 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1354 struct qlcnic_esw_func_cfg *esw_cfg)
1355 {
1356 if (esw_cfg->discard_tagged)
1357 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1358 else
1359 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1360
1361 if (esw_cfg->vlan_id) {
1362 adapter->rx_pvid = esw_cfg->vlan_id;
1363 adapter->tx_pvid = esw_cfg->vlan_id;
1364 } else {
1365 adapter->rx_pvid = 0;
1366 adapter->tx_pvid = 0;
1367 }
1368 }
1369
1370 static int
qlcnic_vlan_rx_add(struct net_device * netdev,__be16 proto,u16 vid)1371 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1372 {
1373 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1374 int err;
1375
1376 if (qlcnic_sriov_vf_check(adapter)) {
1377 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1378 if (err) {
1379 netdev_err(netdev,
1380 "Cannot add VLAN filter for VLAN id %d, err=%d",
1381 vid, err);
1382 return err;
1383 }
1384 }
1385
1386 set_bit(vid, adapter->vlans);
1387 return 0;
1388 }
1389
1390 static int
qlcnic_vlan_rx_del(struct net_device * netdev,__be16 proto,u16 vid)1391 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1392 {
1393 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1394 int err;
1395
1396 if (qlcnic_sriov_vf_check(adapter)) {
1397 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1398 if (err) {
1399 netdev_err(netdev,
1400 "Cannot delete VLAN filter for VLAN id %d, err=%d",
1401 vid, err);
1402 return err;
1403 }
1404 }
1405
1406 qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1407 clear_bit(vid, adapter->vlans);
1408 return 0;
1409 }
1410
qlcnic_set_eswitch_port_features(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1411 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1412 struct qlcnic_esw_func_cfg *esw_cfg)
1413 {
1414 adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1415 QLCNIC_PROMISC_DISABLED);
1416
1417 if (esw_cfg->mac_anti_spoof)
1418 adapter->flags |= QLCNIC_MACSPOOF;
1419
1420 if (!esw_cfg->mac_override)
1421 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1422
1423 if (!esw_cfg->promisc_mode)
1424 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1425 }
1426
qlcnic_set_eswitch_port_config(struct qlcnic_adapter * adapter)1427 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1428 {
1429 struct qlcnic_esw_func_cfg esw_cfg;
1430
1431 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1432 return 0;
1433
1434 esw_cfg.pci_func = adapter->ahw->pci_func;
1435 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1436 return -EIO;
1437 qlcnic_set_vlan_config(adapter, &esw_cfg);
1438 qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1439 qlcnic_set_netdev_features(adapter, &esw_cfg);
1440
1441 return 0;
1442 }
1443
qlcnic_set_netdev_features(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1444 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1445 struct qlcnic_esw_func_cfg *esw_cfg)
1446 {
1447 struct net_device *netdev = adapter->netdev;
1448
1449 if (qlcnic_83xx_check(adapter))
1450 return;
1451
1452 adapter->offload_flags = esw_cfg->offload_flags;
1453 adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1454 netdev_update_features(netdev);
1455 adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1456 }
1457
1458 static int
qlcnic_check_eswitch_mode(struct qlcnic_adapter * adapter)1459 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1460 {
1461 u32 op_mode, priv_level;
1462 int err = 0;
1463
1464 err = qlcnic_initialize_nic(adapter);
1465 if (err)
1466 return err;
1467
1468 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1469 return 0;
1470
1471 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1472 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1473
1474 if (op_mode == QLC_DEV_DRV_DEFAULT)
1475 priv_level = QLCNIC_MGMT_FUNC;
1476 else
1477 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1478
1479 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1480 if (priv_level == QLCNIC_MGMT_FUNC) {
1481 adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1482 err = qlcnic_init_pci_info(adapter);
1483 if (err)
1484 return err;
1485 /* Set privilege level for other functions */
1486 qlcnic_set_function_modes(adapter);
1487 dev_info(&adapter->pdev->dev,
1488 "HAL Version: %d, Management function\n",
1489 adapter->ahw->fw_hal_version);
1490 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1491 adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1492 dev_info(&adapter->pdev->dev,
1493 "HAL Version: %d, Privileged function\n",
1494 adapter->ahw->fw_hal_version);
1495 }
1496 } else {
1497 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1498 }
1499
1500 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1501
1502 return err;
1503 }
1504
qlcnic_set_default_offload_settings(struct qlcnic_adapter * adapter)1505 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1506 {
1507 struct qlcnic_esw_func_cfg esw_cfg;
1508 struct qlcnic_npar_info *npar;
1509 u8 i;
1510
1511 if (adapter->need_fw_reset)
1512 return 0;
1513
1514 for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1515 if (!adapter->npars[i].eswitch_status)
1516 continue;
1517
1518 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1519 esw_cfg.pci_func = adapter->npars[i].pci_func;
1520 esw_cfg.mac_override = BIT_0;
1521 esw_cfg.promisc_mode = BIT_0;
1522 if (qlcnic_82xx_check(adapter)) {
1523 esw_cfg.offload_flags = BIT_0;
1524 if (QLCNIC_IS_TSO_CAPABLE(adapter))
1525 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1526 }
1527 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1528 return -EIO;
1529 npar = &adapter->npars[i];
1530 npar->pvid = esw_cfg.vlan_id;
1531 npar->mac_override = esw_cfg.mac_override;
1532 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1533 npar->discard_tagged = esw_cfg.discard_tagged;
1534 npar->promisc_mode = esw_cfg.promisc_mode;
1535 npar->offload_flags = esw_cfg.offload_flags;
1536 }
1537
1538 return 0;
1539 }
1540
1541
1542 static int
qlcnic_reset_eswitch_config(struct qlcnic_adapter * adapter,struct qlcnic_npar_info * npar,int pci_func)1543 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1544 struct qlcnic_npar_info *npar, int pci_func)
1545 {
1546 struct qlcnic_esw_func_cfg esw_cfg;
1547 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1548 esw_cfg.pci_func = pci_func;
1549 esw_cfg.vlan_id = npar->pvid;
1550 esw_cfg.mac_override = npar->mac_override;
1551 esw_cfg.discard_tagged = npar->discard_tagged;
1552 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1553 esw_cfg.offload_flags = npar->offload_flags;
1554 esw_cfg.promisc_mode = npar->promisc_mode;
1555 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1556 return -EIO;
1557
1558 esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1559 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1560 return -EIO;
1561
1562 return 0;
1563 }
1564
qlcnic_reset_npar_config(struct qlcnic_adapter * adapter)1565 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1566 {
1567 int i, err;
1568 struct qlcnic_npar_info *npar;
1569 struct qlcnic_info nic_info;
1570 u8 pci_func;
1571
1572 if (qlcnic_82xx_check(adapter))
1573 if (!adapter->need_fw_reset)
1574 return 0;
1575
1576 /* Set the NPAR config data after FW reset */
1577 for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1578 npar = &adapter->npars[i];
1579 pci_func = npar->pci_func;
1580 if (!adapter->npars[i].eswitch_status)
1581 continue;
1582
1583 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1584 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1585 if (err)
1586 return err;
1587 nic_info.min_tx_bw = npar->min_bw;
1588 nic_info.max_tx_bw = npar->max_bw;
1589 err = qlcnic_set_nic_info(adapter, &nic_info);
1590 if (err)
1591 return err;
1592
1593 if (npar->enable_pm) {
1594 err = qlcnic_config_port_mirroring(adapter,
1595 npar->dest_npar, 1,
1596 pci_func);
1597 if (err)
1598 return err;
1599 }
1600 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1601 if (err)
1602 return err;
1603 }
1604 return 0;
1605 }
1606
qlcnic_check_npar_opertional(struct qlcnic_adapter * adapter)1607 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1608 {
1609 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1610 u32 npar_state;
1611
1612 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1613 return 0;
1614
1615 npar_state = QLC_SHARED_REG_RD32(adapter,
1616 QLCNIC_CRB_DEV_NPAR_STATE);
1617 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1618 msleep(1000);
1619 npar_state = QLC_SHARED_REG_RD32(adapter,
1620 QLCNIC_CRB_DEV_NPAR_STATE);
1621 }
1622 if (!npar_opt_timeo) {
1623 dev_err(&adapter->pdev->dev,
1624 "Waiting for NPAR state to operational timeout\n");
1625 return -EIO;
1626 }
1627 return 0;
1628 }
1629
1630 static int
qlcnic_set_mgmt_operations(struct qlcnic_adapter * adapter)1631 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1632 {
1633 int err;
1634
1635 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1636 adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1637 return 0;
1638
1639 err = qlcnic_set_default_offload_settings(adapter);
1640 if (err)
1641 return err;
1642
1643 err = qlcnic_reset_npar_config(adapter);
1644 if (err)
1645 return err;
1646
1647 qlcnic_dev_set_npar_ready(adapter);
1648
1649 return err;
1650 }
1651
qlcnic_82xx_start_firmware(struct qlcnic_adapter * adapter)1652 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1653 {
1654 int err;
1655
1656 err = qlcnic_can_start_firmware(adapter);
1657 if (err < 0)
1658 return err;
1659 else if (!err)
1660 goto check_fw_status;
1661
1662 if (qlcnic_load_fw_file)
1663 qlcnic_request_firmware(adapter);
1664 else {
1665 err = qlcnic_check_flash_fw_ver(adapter);
1666 if (err)
1667 goto err_out;
1668
1669 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1670 }
1671
1672 err = qlcnic_need_fw_reset(adapter);
1673 if (err == 0)
1674 goto check_fw_status;
1675
1676 err = qlcnic_pinit_from_rom(adapter);
1677 if (err)
1678 goto err_out;
1679
1680 err = qlcnic_load_firmware(adapter);
1681 if (err)
1682 goto err_out;
1683
1684 qlcnic_release_firmware(adapter);
1685 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1686
1687 check_fw_status:
1688 err = qlcnic_check_fw_status(adapter);
1689 if (err)
1690 goto err_out;
1691
1692 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1693 qlcnic_idc_debug_info(adapter, 1);
1694 err = qlcnic_check_eswitch_mode(adapter);
1695 if (err) {
1696 dev_err(&adapter->pdev->dev,
1697 "Memory allocation failed for eswitch\n");
1698 goto err_out;
1699 }
1700 err = qlcnic_set_mgmt_operations(adapter);
1701 if (err)
1702 goto err_out;
1703
1704 qlcnic_check_options(adapter);
1705 adapter->need_fw_reset = 0;
1706
1707 qlcnic_release_firmware(adapter);
1708 return 0;
1709
1710 err_out:
1711 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1712 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1713
1714 qlcnic_release_firmware(adapter);
1715 return err;
1716 }
1717
1718 static int
qlcnic_request_irq(struct qlcnic_adapter * adapter)1719 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1720 {
1721 irq_handler_t handler;
1722 struct qlcnic_host_sds_ring *sds_ring;
1723 struct qlcnic_host_tx_ring *tx_ring;
1724 int err, ring, num_sds_rings;
1725
1726 unsigned long flags = 0;
1727 struct net_device *netdev = adapter->netdev;
1728 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1729
1730 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1731 if (qlcnic_82xx_check(adapter))
1732 handler = qlcnic_tmp_intr;
1733 else
1734 handler = qlcnic_83xx_tmp_intr;
1735 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1736 flags |= IRQF_SHARED;
1737
1738 } else {
1739 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1740 handler = qlcnic_msix_intr;
1741 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1742 handler = qlcnic_msi_intr;
1743 else {
1744 flags |= IRQF_SHARED;
1745 if (qlcnic_82xx_check(adapter))
1746 handler = qlcnic_intr;
1747 else
1748 handler = qlcnic_83xx_intr;
1749 }
1750 }
1751 adapter->irq = netdev->irq;
1752
1753 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1754 if (qlcnic_82xx_check(adapter) ||
1755 (qlcnic_83xx_check(adapter) &&
1756 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1757 num_sds_rings = adapter->drv_sds_rings;
1758 for (ring = 0; ring < num_sds_rings; ring++) {
1759 sds_ring = &recv_ctx->sds_rings[ring];
1760 if (qlcnic_82xx_check(adapter) &&
1761 !qlcnic_check_multi_tx(adapter) &&
1762 (ring == (num_sds_rings - 1))) {
1763 if (!(adapter->flags &
1764 QLCNIC_MSIX_ENABLED))
1765 snprintf(sds_ring->name,
1766 sizeof(sds_ring->name),
1767 "qlcnic");
1768 else
1769 snprintf(sds_ring->name,
1770 sizeof(sds_ring->name),
1771 "%s-tx-0-rx-%d",
1772 netdev->name, ring);
1773 } else {
1774 snprintf(sds_ring->name,
1775 sizeof(sds_ring->name),
1776 "%s-rx-%d",
1777 netdev->name, ring);
1778 }
1779 err = request_irq(sds_ring->irq, handler, flags,
1780 sds_ring->name, sds_ring);
1781 if (err)
1782 return err;
1783 }
1784 }
1785 if ((qlcnic_82xx_check(adapter) &&
1786 qlcnic_check_multi_tx(adapter)) ||
1787 (qlcnic_83xx_check(adapter) &&
1788 (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1789 !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1790 handler = qlcnic_msix_tx_intr;
1791 for (ring = 0; ring < adapter->drv_tx_rings;
1792 ring++) {
1793 tx_ring = &adapter->tx_ring[ring];
1794 snprintf(tx_ring->name, sizeof(tx_ring->name),
1795 "%s-tx-%d", netdev->name, ring);
1796 err = request_irq(tx_ring->irq, handler, flags,
1797 tx_ring->name, tx_ring);
1798 if (err)
1799 return err;
1800 }
1801 }
1802 }
1803 return 0;
1804 }
1805
1806 static void
qlcnic_free_irq(struct qlcnic_adapter * adapter)1807 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1808 {
1809 int ring;
1810 struct qlcnic_host_sds_ring *sds_ring;
1811 struct qlcnic_host_tx_ring *tx_ring;
1812
1813 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1814
1815 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1816 if (qlcnic_82xx_check(adapter) ||
1817 (qlcnic_83xx_check(adapter) &&
1818 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1819 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1820 sds_ring = &recv_ctx->sds_rings[ring];
1821 free_irq(sds_ring->irq, sds_ring);
1822 }
1823 }
1824 if ((qlcnic_83xx_check(adapter) &&
1825 !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1826 (qlcnic_82xx_check(adapter) &&
1827 qlcnic_check_multi_tx(adapter))) {
1828 for (ring = 0; ring < adapter->drv_tx_rings;
1829 ring++) {
1830 tx_ring = &adapter->tx_ring[ring];
1831 if (tx_ring->irq)
1832 free_irq(tx_ring->irq, tx_ring);
1833 }
1834 }
1835 }
1836 }
1837
qlcnic_get_lro_mss_capability(struct qlcnic_adapter * adapter)1838 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1839 {
1840 u32 capab = 0;
1841
1842 if (qlcnic_82xx_check(adapter)) {
1843 if (adapter->ahw->extra_capability[0] &
1844 QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1845 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1846 } else {
1847 capab = adapter->ahw->capabilities;
1848 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1849 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1850 }
1851 }
1852
qlcnic_config_def_intr_coalesce(struct qlcnic_adapter * adapter)1853 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1854 {
1855 struct qlcnic_hardware_context *ahw = adapter->ahw;
1856 int err;
1857
1858 /* Initialize interrupt coalesce parameters */
1859 ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1860
1861 if (qlcnic_83xx_check(adapter)) {
1862 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1863 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1864 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1865 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1866 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1867
1868 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1869 } else {
1870 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1871 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1872 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1873
1874 err = qlcnic_82xx_set_rx_coalesce(adapter);
1875 }
1876
1877 return err;
1878 }
1879
__qlcnic_up(struct qlcnic_adapter * adapter,struct net_device * netdev)1880 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1881 {
1882 int ring;
1883 struct qlcnic_host_rds_ring *rds_ring;
1884
1885 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1886 return -EIO;
1887
1888 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1889 return 0;
1890
1891 if (qlcnic_set_eswitch_port_config(adapter))
1892 return -EIO;
1893
1894 qlcnic_get_lro_mss_capability(adapter);
1895
1896 if (qlcnic_fw_create_ctx(adapter))
1897 return -EIO;
1898
1899 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1900 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1901 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1902 }
1903
1904 qlcnic_set_multi(netdev);
1905 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1906
1907 adapter->ahw->linkup = 0;
1908
1909 if (adapter->drv_sds_rings > 1)
1910 qlcnic_config_rss(adapter, 1);
1911
1912 qlcnic_config_def_intr_coalesce(adapter);
1913
1914 if (netdev->features & NETIF_F_LRO)
1915 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1916
1917 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1918 qlcnic_napi_enable(adapter);
1919
1920 qlcnic_linkevent_request(adapter, 1);
1921
1922 adapter->ahw->reset_context = 0;
1923 netif_tx_start_all_queues(netdev);
1924 return 0;
1925 }
1926
qlcnic_up(struct qlcnic_adapter * adapter,struct net_device * netdev)1927 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1928 {
1929 int err = 0;
1930
1931 rtnl_lock();
1932 if (netif_running(netdev))
1933 err = __qlcnic_up(adapter, netdev);
1934 rtnl_unlock();
1935
1936 return err;
1937 }
1938
__qlcnic_down(struct qlcnic_adapter * adapter,struct net_device * netdev)1939 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1940 {
1941 int ring;
1942
1943 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1944 return;
1945
1946 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1947 return;
1948
1949 smp_mb();
1950 netif_carrier_off(netdev);
1951 adapter->ahw->linkup = 0;
1952 netif_tx_disable(netdev);
1953
1954 qlcnic_free_mac_list(adapter);
1955
1956 if (adapter->fhash.fnum)
1957 qlcnic_delete_lb_filters(adapter);
1958
1959 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1960 if (qlcnic_sriov_vf_check(adapter))
1961 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1962
1963 qlcnic_napi_disable(adapter);
1964
1965 qlcnic_fw_destroy_ctx(adapter);
1966 adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1967
1968 qlcnic_reset_rx_buffers_list(adapter);
1969
1970 for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1971 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1972 }
1973
1974 /* Usage: During suspend and firmware recovery module */
1975
qlcnic_down(struct qlcnic_adapter * adapter,struct net_device * netdev)1976 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1977 {
1978 rtnl_lock();
1979 if (netif_running(netdev))
1980 __qlcnic_down(adapter, netdev);
1981 rtnl_unlock();
1982
1983 }
1984
1985 int
qlcnic_attach(struct qlcnic_adapter * adapter)1986 qlcnic_attach(struct qlcnic_adapter *adapter)
1987 {
1988 struct net_device *netdev = adapter->netdev;
1989 struct pci_dev *pdev = adapter->pdev;
1990 int err;
1991
1992 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1993 return 0;
1994
1995 err = qlcnic_napi_add(adapter, netdev);
1996 if (err)
1997 return err;
1998
1999 err = qlcnic_alloc_sw_resources(adapter);
2000 if (err) {
2001 dev_err(&pdev->dev, "Error in setting sw resources\n");
2002 goto err_out_napi_del;
2003 }
2004
2005 err = qlcnic_alloc_hw_resources(adapter);
2006 if (err) {
2007 dev_err(&pdev->dev, "Error in setting hw resources\n");
2008 goto err_out_free_sw;
2009 }
2010
2011 err = qlcnic_request_irq(adapter);
2012 if (err) {
2013 dev_err(&pdev->dev, "failed to setup interrupt\n");
2014 goto err_out_free_hw;
2015 }
2016
2017 qlcnic_create_sysfs_entries(adapter);
2018
2019 if (qlcnic_encap_rx_offload(adapter))
2020 udp_tunnel_get_rx_info(netdev);
2021
2022 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
2023 return 0;
2024
2025 err_out_free_hw:
2026 qlcnic_free_hw_resources(adapter);
2027 err_out_free_sw:
2028 qlcnic_free_sw_resources(adapter);
2029 err_out_napi_del:
2030 qlcnic_napi_del(adapter);
2031 return err;
2032 }
2033
qlcnic_detach(struct qlcnic_adapter * adapter)2034 void qlcnic_detach(struct qlcnic_adapter *adapter)
2035 {
2036 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2037 return;
2038
2039 qlcnic_remove_sysfs_entries(adapter);
2040
2041 qlcnic_free_hw_resources(adapter);
2042 qlcnic_release_rx_buffers(adapter);
2043 qlcnic_free_irq(adapter);
2044 qlcnic_napi_del(adapter);
2045 qlcnic_free_sw_resources(adapter);
2046
2047 adapter->is_up = 0;
2048 }
2049
qlcnic_diag_free_res(struct net_device * netdev,int drv_sds_rings)2050 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2051 {
2052 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2053 struct qlcnic_host_sds_ring *sds_ring;
2054 int drv_tx_rings = adapter->drv_tx_rings;
2055 int ring;
2056
2057 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2058 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2059 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2060 sds_ring = &adapter->recv_ctx->sds_rings[ring];
2061 qlcnic_disable_sds_intr(adapter, sds_ring);
2062 }
2063 }
2064
2065 qlcnic_fw_destroy_ctx(adapter);
2066
2067 qlcnic_detach(adapter);
2068
2069 adapter->ahw->diag_test = 0;
2070 adapter->drv_sds_rings = drv_sds_rings;
2071 adapter->drv_tx_rings = drv_tx_rings;
2072
2073 if (qlcnic_attach(adapter))
2074 goto out;
2075
2076 if (netif_running(netdev))
2077 __qlcnic_up(adapter, netdev);
2078 out:
2079 netif_device_attach(netdev);
2080 }
2081
qlcnic_alloc_adapter_resources(struct qlcnic_adapter * adapter)2082 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2083 {
2084 struct qlcnic_hardware_context *ahw = adapter->ahw;
2085 int err = 0;
2086
2087 adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2088 GFP_KERNEL);
2089 if (!adapter->recv_ctx) {
2090 err = -ENOMEM;
2091 goto err_out;
2092 }
2093
2094 if (qlcnic_83xx_check(adapter)) {
2095 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2096 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
2097 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
2098 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2099 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2100 } else {
2101 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
2102 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2103 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2104 }
2105
2106 /* clear stats */
2107 memset(&adapter->stats, 0, sizeof(adapter->stats));
2108 err_out:
2109 return err;
2110 }
2111
qlcnic_free_adapter_resources(struct qlcnic_adapter * adapter)2112 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2113 {
2114 struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
2115
2116 kfree(adapter->recv_ctx);
2117 adapter->recv_ctx = NULL;
2118
2119 if (fw_dump->tmpl_hdr) {
2120 vfree(fw_dump->tmpl_hdr);
2121 fw_dump->tmpl_hdr = NULL;
2122 }
2123
2124 if (fw_dump->dma_buffer) {
2125 dma_free_coherent(&adapter->pdev->dev, QLC_PEX_DMA_READ_SIZE,
2126 fw_dump->dma_buffer, fw_dump->phys_addr);
2127 fw_dump->dma_buffer = NULL;
2128 }
2129
2130 kfree(adapter->ahw->reset.buff);
2131 adapter->ahw->fw_dump.tmpl_hdr = NULL;
2132 }
2133
qlcnic_diag_alloc_res(struct net_device * netdev,int test)2134 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2135 {
2136 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2137 struct qlcnic_host_sds_ring *sds_ring;
2138 struct qlcnic_host_rds_ring *rds_ring;
2139 int ring;
2140 int ret;
2141
2142 netif_device_detach(netdev);
2143
2144 if (netif_running(netdev))
2145 __qlcnic_down(adapter, netdev);
2146
2147 qlcnic_detach(adapter);
2148
2149 adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2150 adapter->ahw->diag_test = test;
2151 adapter->ahw->linkup = 0;
2152
2153 ret = qlcnic_attach(adapter);
2154 if (ret) {
2155 netif_device_attach(netdev);
2156 return ret;
2157 }
2158
2159 ret = qlcnic_fw_create_ctx(adapter);
2160 if (ret) {
2161 qlcnic_detach(adapter);
2162 netif_device_attach(netdev);
2163 return ret;
2164 }
2165
2166 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2167 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2168 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2169 }
2170
2171 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2172 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2173 sds_ring = &adapter->recv_ctx->sds_rings[ring];
2174 qlcnic_enable_sds_intr(adapter, sds_ring);
2175 }
2176 }
2177
2178 if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2179 adapter->ahw->loopback_state = 0;
2180 qlcnic_linkevent_request(adapter, 1);
2181 }
2182
2183 set_bit(__QLCNIC_DEV_UP, &adapter->state);
2184
2185 return 0;
2186 }
2187
2188 /* Reset context in hardware only */
2189 static int
qlcnic_reset_hw_context(struct qlcnic_adapter * adapter)2190 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2191 {
2192 struct net_device *netdev = adapter->netdev;
2193
2194 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2195 return -EBUSY;
2196
2197 netif_device_detach(netdev);
2198
2199 qlcnic_down(adapter, netdev);
2200
2201 qlcnic_up(adapter, netdev);
2202
2203 netif_device_attach(netdev);
2204
2205 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2206 netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2207 return 0;
2208 }
2209
2210 int
qlcnic_reset_context(struct qlcnic_adapter * adapter)2211 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2212 {
2213 int err = 0;
2214 struct net_device *netdev = adapter->netdev;
2215
2216 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2217 return -EBUSY;
2218
2219 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2220
2221 netif_device_detach(netdev);
2222
2223 if (netif_running(netdev))
2224 __qlcnic_down(adapter, netdev);
2225
2226 qlcnic_detach(adapter);
2227
2228 if (netif_running(netdev)) {
2229 err = qlcnic_attach(adapter);
2230 if (!err) {
2231 __qlcnic_up(adapter, netdev);
2232 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2233 }
2234 }
2235
2236 netif_device_attach(netdev);
2237 }
2238
2239 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2240 return err;
2241 }
2242
qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter * adapter)2243 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2244 {
2245 struct qlcnic_hardware_context *ahw = adapter->ahw;
2246 u16 act_pci_fn = ahw->total_nic_func;
2247 u16 count;
2248
2249 ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2250 if (act_pci_fn <= 2)
2251 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2252 act_pci_fn;
2253 else
2254 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2255 act_pci_fn;
2256 ahw->max_uc_count = count;
2257 }
2258
qlcnic_set_real_num_queues(struct qlcnic_adapter * adapter,u8 tx_queues,u8 rx_queues)2259 static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
2260 u8 tx_queues, u8 rx_queues)
2261 {
2262 struct net_device *netdev = adapter->netdev;
2263 int err = 0;
2264
2265 if (tx_queues) {
2266 err = netif_set_real_num_tx_queues(netdev, tx_queues);
2267 if (err) {
2268 netdev_err(netdev, "failed to set %d Tx queues\n",
2269 tx_queues);
2270 return err;
2271 }
2272 }
2273
2274 if (rx_queues) {
2275 err = netif_set_real_num_rx_queues(netdev, rx_queues);
2276 if (err)
2277 netdev_err(netdev, "failed to set %d Rx queues\n",
2278 rx_queues);
2279 }
2280
2281 return err;
2282 }
2283
2284 int
qlcnic_setup_netdev(struct qlcnic_adapter * adapter,struct net_device * netdev,int pci_using_dac)2285 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2286 int pci_using_dac)
2287 {
2288 int err;
2289 struct pci_dev *pdev = adapter->pdev;
2290
2291 adapter->rx_csum = 1;
2292 adapter->ahw->mc_enabled = 0;
2293 qlcnic_set_mac_filter_count(adapter);
2294
2295 netdev->netdev_ops = &qlcnic_netdev_ops;
2296 netdev->watchdog_timeo = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2297
2298 qlcnic_change_mtu(netdev, netdev->mtu);
2299
2300 netdev->ethtool_ops = (qlcnic_sriov_vf_check(adapter)) ?
2301 &qlcnic_sriov_vf_ethtool_ops : &qlcnic_ethtool_ops;
2302
2303 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2304 NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2305 NETIF_F_HW_VLAN_CTAG_RX);
2306 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2307 NETIF_F_IPV6_CSUM);
2308
2309 if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2310 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2311 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2312 }
2313
2314 if (pci_using_dac) {
2315 netdev->features |= NETIF_F_HIGHDMA;
2316 netdev->vlan_features |= NETIF_F_HIGHDMA;
2317 }
2318
2319 if (qlcnic_vlan_tx_check(adapter))
2320 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2321
2322 if (qlcnic_sriov_vf_check(adapter))
2323 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2324
2325 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2326 netdev->features |= NETIF_F_LRO;
2327
2328 if (qlcnic_encap_tx_offload(adapter)) {
2329 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2330
2331 /* encapsulation Tx offload supported by Adapter */
2332 netdev->hw_enc_features = NETIF_F_IP_CSUM |
2333 NETIF_F_GSO_UDP_TUNNEL |
2334 NETIF_F_TSO |
2335 NETIF_F_TSO6;
2336 }
2337
2338 if (qlcnic_encap_rx_offload(adapter))
2339 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2340
2341 netdev->hw_features = netdev->features;
2342 netdev->priv_flags |= IFF_UNICAST_FLT;
2343 netdev->irq = adapter->msix_entries[0].vector;
2344
2345 /* MTU range: 68 - 9600 */
2346 netdev->min_mtu = P3P_MIN_MTU;
2347 netdev->max_mtu = P3P_MAX_MTU;
2348
2349 err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings,
2350 adapter->drv_sds_rings);
2351 if (err)
2352 return err;
2353
2354 qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2355
2356 err = register_netdev(netdev);
2357 if (err) {
2358 dev_err(&pdev->dev, "failed to register net device\n");
2359 return err;
2360 }
2361
2362 return 0;
2363 }
2364
qlcnic_set_dma_mask(struct pci_dev * pdev,int * pci_using_dac)2365 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2366 {
2367 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2368 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2369 *pci_using_dac = 1;
2370 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2371 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2372 *pci_using_dac = 0;
2373 else {
2374 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2375 return -EIO;
2376 }
2377
2378 return 0;
2379 }
2380
qlcnic_free_tx_rings(struct qlcnic_adapter * adapter)2381 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2382 {
2383 int ring;
2384 struct qlcnic_host_tx_ring *tx_ring;
2385
2386 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2387 tx_ring = &adapter->tx_ring[ring];
2388 if (tx_ring) {
2389 vfree(tx_ring->cmd_buf_arr);
2390 tx_ring->cmd_buf_arr = NULL;
2391 }
2392 }
2393 kfree(adapter->tx_ring);
2394 }
2395
qlcnic_alloc_tx_rings(struct qlcnic_adapter * adapter,struct net_device * netdev)2396 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2397 struct net_device *netdev)
2398 {
2399 int ring, vector, index;
2400 struct qlcnic_host_tx_ring *tx_ring;
2401 struct qlcnic_cmd_buffer *cmd_buf_arr;
2402
2403 tx_ring = kcalloc(adapter->drv_tx_rings,
2404 sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2405 if (tx_ring == NULL)
2406 return -ENOMEM;
2407
2408 adapter->tx_ring = tx_ring;
2409
2410 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2411 tx_ring = &adapter->tx_ring[ring];
2412 tx_ring->num_desc = adapter->num_txd;
2413 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2414 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2415 if (cmd_buf_arr == NULL) {
2416 qlcnic_free_tx_rings(adapter);
2417 return -ENOMEM;
2418 }
2419 tx_ring->cmd_buf_arr = cmd_buf_arr;
2420 spin_lock_init(&tx_ring->tx_clean_lock);
2421 }
2422
2423 if (qlcnic_83xx_check(adapter) ||
2424 (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2425 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2426 tx_ring = &adapter->tx_ring[ring];
2427 tx_ring->adapter = adapter;
2428 if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2429 index = adapter->drv_sds_rings + ring;
2430 vector = adapter->msix_entries[index].vector;
2431 tx_ring->irq = vector;
2432 }
2433 }
2434 }
2435
2436 return 0;
2437 }
2438
qlcnic_set_drv_version(struct qlcnic_adapter * adapter)2439 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2440 {
2441 struct qlcnic_hardware_context *ahw = adapter->ahw;
2442 u32 fw_cmd = 0;
2443
2444 if (qlcnic_82xx_check(adapter))
2445 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2446 else if (qlcnic_83xx_check(adapter))
2447 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2448
2449 if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2450 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2451 }
2452
2453 /* Reset firmware API lock */
qlcnic_reset_api_lock(struct qlcnic_adapter * adapter)2454 static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2455 {
2456 qlcnic_api_lock(adapter);
2457 qlcnic_api_unlock(adapter);
2458 }
2459
2460
2461 static int
qlcnic_probe(struct pci_dev * pdev,const struct pci_device_id * ent)2462 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2463 {
2464 struct net_device *netdev = NULL;
2465 struct qlcnic_adapter *adapter = NULL;
2466 struct qlcnic_hardware_context *ahw;
2467 int err, pci_using_dac = -1;
2468 char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2469
2470 err = pci_enable_device(pdev);
2471 if (err)
2472 return err;
2473
2474 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2475 err = -ENODEV;
2476 goto err_out_disable_pdev;
2477 }
2478
2479 err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2480 if (err)
2481 goto err_out_disable_pdev;
2482
2483 err = pci_request_regions(pdev, qlcnic_driver_name);
2484 if (err)
2485 goto err_out_disable_pdev;
2486
2487 pci_set_master(pdev);
2488 pci_enable_pcie_error_reporting(pdev);
2489
2490 ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2491 if (!ahw) {
2492 err = -ENOMEM;
2493 goto err_out_free_res;
2494 }
2495
2496 switch (ent->device) {
2497 case PCI_DEVICE_ID_QLOGIC_QLE824X:
2498 ahw->hw_ops = &qlcnic_hw_ops;
2499 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2500 break;
2501 case PCI_DEVICE_ID_QLOGIC_QLE834X:
2502 case PCI_DEVICE_ID_QLOGIC_QLE8830:
2503 case PCI_DEVICE_ID_QLOGIC_QLE844X:
2504 qlcnic_83xx_register_map(ahw);
2505 break;
2506 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2507 case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
2508 case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2509 qlcnic_sriov_vf_register_map(ahw);
2510 break;
2511 default:
2512 goto err_out_free_hw_res;
2513 }
2514
2515 err = qlcnic_setup_pci_map(pdev, ahw);
2516 if (err)
2517 goto err_out_free_hw_res;
2518
2519 netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2520 QLCNIC_MAX_TX_RINGS);
2521 if (!netdev) {
2522 err = -ENOMEM;
2523 goto err_out_iounmap;
2524 }
2525
2526 SET_NETDEV_DEV(netdev, &pdev->dev);
2527
2528 adapter = netdev_priv(netdev);
2529 adapter->netdev = netdev;
2530 adapter->pdev = pdev;
2531 adapter->ahw = ahw;
2532
2533 adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2534 if (adapter->qlcnic_wq == NULL) {
2535 err = -ENOMEM;
2536 dev_err(&pdev->dev, "Failed to create workqueue\n");
2537 goto err_out_free_netdev;
2538 }
2539
2540 err = qlcnic_alloc_adapter_resources(adapter);
2541 if (err)
2542 goto err_out_free_wq;
2543
2544 adapter->dev_rst_time = jiffies;
2545 ahw->revision_id = pdev->revision;
2546 ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2547 if (qlcnic_mac_learn == FDB_MAC_LEARN)
2548 adapter->fdb_mac_learn = true;
2549 else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2550 adapter->drv_mac_learn = true;
2551
2552 rwlock_init(&adapter->ahw->crb_lock);
2553 mutex_init(&adapter->ahw->mem_lock);
2554
2555 INIT_LIST_HEAD(&adapter->mac_list);
2556
2557 qlcnic_register_dcb(adapter);
2558
2559 if (qlcnic_82xx_check(adapter)) {
2560 qlcnic_check_vf(adapter, ent);
2561 adapter->portnum = adapter->ahw->pci_func;
2562 qlcnic_reset_api_lock(adapter);
2563 err = qlcnic_start_firmware(adapter);
2564 if (err) {
2565 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2566 "\t\tIf reboot doesn't help, try flashing the card\n");
2567 goto err_out_maintenance_mode;
2568 }
2569
2570 /* compute and set default and max tx/sds rings */
2571 if (adapter->ahw->msix_supported) {
2572 if (qlcnic_check_multi_tx_capability(adapter) == 1)
2573 qlcnic_set_tx_ring_count(adapter,
2574 QLCNIC_SINGLE_RING);
2575 else
2576 qlcnic_set_tx_ring_count(adapter,
2577 QLCNIC_DEF_TX_RINGS);
2578 qlcnic_set_sds_ring_count(adapter,
2579 QLCNIC_DEF_SDS_RINGS);
2580 } else {
2581 qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2582 qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2583 }
2584
2585 err = qlcnic_setup_idc_param(adapter);
2586 if (err)
2587 goto err_out_free_hw;
2588
2589 adapter->flags |= QLCNIC_NEED_FLR;
2590
2591 } else if (qlcnic_83xx_check(adapter)) {
2592 qlcnic_83xx_check_vf(adapter, ent);
2593 adapter->portnum = adapter->ahw->pci_func;
2594 err = qlcnic_83xx_init(adapter, pci_using_dac);
2595 if (err) {
2596 switch (err) {
2597 case -ENOTRECOVERABLE:
2598 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2599 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2600 goto err_out_free_hw;
2601 case -ENOMEM:
2602 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2603 goto err_out_free_hw;
2604 case -EOPNOTSUPP:
2605 dev_err(&pdev->dev, "Adapter initialization failed\n");
2606 goto err_out_free_hw;
2607 default:
2608 dev_err(&pdev->dev, "Adapter initialization failed. Driver will load in maintenance mode to recover the adapter using the application\n");
2609 goto err_out_maintenance_mode;
2610 }
2611 }
2612
2613 if (qlcnic_sriov_vf_check(adapter))
2614 return 0;
2615 } else {
2616 dev_err(&pdev->dev,
2617 "%s: failed. Please Reboot\n", __func__);
2618 err = -ENODEV;
2619 goto err_out_free_hw;
2620 }
2621
2622 if (qlcnic_read_mac_addr(adapter))
2623 dev_warn(&pdev->dev, "failed to read mac addr\n");
2624
2625 qlcnic_read_phys_port_id(adapter);
2626
2627 if (adapter->portnum == 0) {
2628 qlcnic_get_board_name(adapter, board_name);
2629
2630 pr_info("%s: %s Board Chip rev 0x%x\n",
2631 module_name(THIS_MODULE),
2632 board_name, adapter->ahw->revision_id);
2633 }
2634
2635 if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2636 !!qlcnic_use_msi)
2637 dev_warn(&pdev->dev,
2638 "Device does not support MSI interrupts\n");
2639
2640 if (qlcnic_82xx_check(adapter)) {
2641 qlcnic_dcb_enable(adapter->dcb);
2642 qlcnic_dcb_get_info(adapter->dcb);
2643 err = qlcnic_setup_intr(adapter);
2644
2645 if (err) {
2646 dev_err(&pdev->dev, "Failed to setup interrupt\n");
2647 goto err_out_disable_msi;
2648 }
2649 }
2650
2651 err = qlcnic_get_act_pci_func(adapter);
2652 if (err)
2653 goto err_out_disable_mbx_intr;
2654
2655 if (adapter->portnum == 0)
2656 qlcnic_set_drv_version(adapter);
2657
2658 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2659 if (err)
2660 goto err_out_disable_mbx_intr;
2661
2662 pci_set_drvdata(pdev, adapter);
2663
2664 if (qlcnic_82xx_check(adapter))
2665 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2666 FW_POLL_DELAY);
2667
2668 switch (adapter->ahw->port_type) {
2669 case QLCNIC_GBE:
2670 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2671 adapter->netdev->name);
2672 break;
2673 case QLCNIC_XGBE:
2674 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2675 adapter->netdev->name);
2676 break;
2677 }
2678
2679 if (adapter->drv_mac_learn)
2680 qlcnic_alloc_lb_filters_mem(adapter);
2681
2682 qlcnic_add_sysfs(adapter);
2683 qlcnic_register_hwmon_dev(adapter);
2684 return 0;
2685
2686 err_out_disable_mbx_intr:
2687 if (qlcnic_83xx_check(adapter))
2688 qlcnic_83xx_free_mbx_intr(adapter);
2689
2690 err_out_disable_msi:
2691 qlcnic_teardown_intr(adapter);
2692 qlcnic_cancel_idc_work(adapter);
2693 qlcnic_clr_all_drv_state(adapter, 0);
2694
2695 err_out_free_hw:
2696 qlcnic_free_adapter_resources(adapter);
2697
2698 err_out_free_wq:
2699 destroy_workqueue(adapter->qlcnic_wq);
2700
2701 err_out_free_netdev:
2702 free_netdev(netdev);
2703
2704 err_out_iounmap:
2705 qlcnic_cleanup_pci_map(ahw);
2706
2707 err_out_free_hw_res:
2708 kfree(ahw);
2709
2710 err_out_free_res:
2711 pci_release_regions(pdev);
2712
2713 err_out_disable_pdev:
2714 pci_disable_device(pdev);
2715 return err;
2716
2717 err_out_maintenance_mode:
2718 set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2719 netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2720 netdev->ethtool_ops = &qlcnic_ethtool_failed_ops;
2721 ahw->port_type = QLCNIC_XGBE;
2722
2723 if (qlcnic_83xx_check(adapter))
2724 adapter->tgt_status_reg = NULL;
2725 else
2726 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2727
2728 err = register_netdev(netdev);
2729
2730 if (err) {
2731 dev_err(&pdev->dev, "Failed to register net device\n");
2732 qlcnic_clr_all_drv_state(adapter, 0);
2733 goto err_out_free_hw;
2734 }
2735
2736 pci_set_drvdata(pdev, adapter);
2737 qlcnic_add_sysfs(adapter);
2738
2739 return 0;
2740 }
2741
qlcnic_remove(struct pci_dev * pdev)2742 static void qlcnic_remove(struct pci_dev *pdev)
2743 {
2744 struct qlcnic_adapter *adapter;
2745 struct net_device *netdev;
2746 struct qlcnic_hardware_context *ahw;
2747
2748 adapter = pci_get_drvdata(pdev);
2749 if (adapter == NULL)
2750 return;
2751
2752 netdev = adapter->netdev;
2753
2754 qlcnic_cancel_idc_work(adapter);
2755 qlcnic_sriov_pf_disable(adapter);
2756 ahw = adapter->ahw;
2757
2758 unregister_netdev(netdev);
2759 qlcnic_sriov_cleanup(adapter);
2760
2761 if (qlcnic_83xx_check(adapter)) {
2762 qlcnic_83xx_initialize_nic(adapter, 0);
2763 cancel_delayed_work_sync(&adapter->idc_aen_work);
2764 qlcnic_83xx_free_mbx_intr(adapter);
2765 qlcnic_83xx_detach_mailbox_work(adapter);
2766 qlcnic_83xx_free_mailbox(ahw->mailbox);
2767 kfree(ahw->fw_info);
2768 }
2769
2770 qlcnic_dcb_free(adapter->dcb);
2771 qlcnic_detach(adapter);
2772 kfree(adapter->npars);
2773 kfree(adapter->eswitch);
2774
2775 if (qlcnic_82xx_check(adapter))
2776 qlcnic_clr_all_drv_state(adapter, 0);
2777
2778 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2779
2780 qlcnic_free_lb_filters_mem(adapter);
2781
2782 qlcnic_teardown_intr(adapter);
2783
2784 qlcnic_remove_sysfs(adapter);
2785
2786 qlcnic_unregister_hwmon_dev(adapter);
2787
2788 qlcnic_cleanup_pci_map(adapter->ahw);
2789
2790 qlcnic_release_firmware(adapter);
2791
2792 pci_disable_pcie_error_reporting(pdev);
2793 pci_release_regions(pdev);
2794 pci_disable_device(pdev);
2795
2796 if (adapter->qlcnic_wq) {
2797 destroy_workqueue(adapter->qlcnic_wq);
2798 adapter->qlcnic_wq = NULL;
2799 }
2800
2801 qlcnic_free_adapter_resources(adapter);
2802 kfree(ahw);
2803 free_netdev(netdev);
2804 }
2805
qlcnic_shutdown(struct pci_dev * pdev)2806 static void qlcnic_shutdown(struct pci_dev *pdev)
2807 {
2808 if (__qlcnic_shutdown(pdev))
2809 return;
2810
2811 pci_disable_device(pdev);
2812 }
2813
2814 #ifdef CONFIG_PM
qlcnic_suspend(struct pci_dev * pdev,pm_message_t state)2815 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2816 {
2817 int retval;
2818
2819 retval = __qlcnic_shutdown(pdev);
2820 if (retval)
2821 return retval;
2822
2823 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2824 return 0;
2825 }
2826
qlcnic_resume(struct pci_dev * pdev)2827 static int qlcnic_resume(struct pci_dev *pdev)
2828 {
2829 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2830 int err;
2831
2832 err = pci_enable_device(pdev);
2833 if (err)
2834 return err;
2835
2836 pci_set_power_state(pdev, PCI_D0);
2837 pci_set_master(pdev);
2838 pci_restore_state(pdev);
2839
2840 return __qlcnic_resume(adapter);
2841 }
2842 #endif
2843
qlcnic_open(struct net_device * netdev)2844 static int qlcnic_open(struct net_device *netdev)
2845 {
2846 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2847 int err;
2848
2849 if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2850 netdev_err(netdev, "%s: Device is in non-operational state\n",
2851 __func__);
2852
2853 return -EIO;
2854 }
2855
2856 netif_carrier_off(netdev);
2857
2858 err = qlcnic_attach(adapter);
2859 if (err)
2860 return err;
2861
2862 err = __qlcnic_up(adapter, netdev);
2863 if (err)
2864 qlcnic_detach(adapter);
2865
2866 return err;
2867 }
2868
2869 /*
2870 * qlcnic_close - Disables a network interface entry point
2871 */
qlcnic_close(struct net_device * netdev)2872 static int qlcnic_close(struct net_device *netdev)
2873 {
2874 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2875
2876 __qlcnic_down(adapter, netdev);
2877
2878 return 0;
2879 }
2880
2881 #define QLCNIC_VF_LB_BUCKET_SIZE 1
2882
qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter * adapter)2883 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2884 {
2885 void *head;
2886 int i;
2887 struct net_device *netdev = adapter->netdev;
2888 u32 filter_size = 0;
2889 u16 act_pci_func = 0;
2890
2891 if (adapter->fhash.fmax && adapter->fhash.fhead)
2892 return;
2893
2894 act_pci_func = adapter->ahw->total_nic_func;
2895 spin_lock_init(&adapter->mac_learn_lock);
2896 spin_lock_init(&adapter->rx_mac_learn_lock);
2897
2898 if (qlcnic_sriov_vf_check(adapter)) {
2899 filter_size = QLCNIC_83XX_SRIOV_VF_MAX_MAC - 1;
2900 adapter->fhash.fbucket_size = QLCNIC_VF_LB_BUCKET_SIZE;
2901 } else if (qlcnic_82xx_check(adapter)) {
2902 filter_size = QLCNIC_LB_MAX_FILTERS;
2903 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2904 } else {
2905 filter_size = QLC_83XX_LB_MAX_FILTERS;
2906 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2907 }
2908
2909 head = kcalloc(adapter->fhash.fbucket_size,
2910 sizeof(struct hlist_head), GFP_ATOMIC);
2911
2912 if (!head)
2913 return;
2914
2915 adapter->fhash.fmax = (filter_size / act_pci_func);
2916 adapter->fhash.fhead = head;
2917
2918 netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2919 act_pci_func, adapter->fhash.fmax);
2920
2921 for (i = 0; i < adapter->fhash.fbucket_size; i++)
2922 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2923
2924 adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2925
2926 head = kcalloc(adapter->rx_fhash.fbucket_size,
2927 sizeof(struct hlist_head), GFP_ATOMIC);
2928
2929 if (!head)
2930 return;
2931
2932 adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2933 adapter->rx_fhash.fhead = head;
2934
2935 for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2936 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2937 }
2938
qlcnic_free_lb_filters_mem(struct qlcnic_adapter * adapter)2939 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2940 {
2941 if (adapter->fhash.fmax)
2942 kfree(adapter->fhash.fhead);
2943
2944 adapter->fhash.fhead = NULL;
2945 adapter->fhash.fmax = 0;
2946
2947 if (adapter->rx_fhash.fmax)
2948 kfree(adapter->rx_fhash.fhead);
2949
2950 adapter->rx_fhash.fmax = 0;
2951 adapter->rx_fhash.fhead = NULL;
2952 }
2953
qlcnic_check_temp(struct qlcnic_adapter * adapter)2954 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2955 {
2956 struct net_device *netdev = adapter->netdev;
2957 u32 temp_state, temp_val, temp = 0;
2958 int rv = 0;
2959
2960 if (qlcnic_83xx_check(adapter))
2961 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2962
2963 if (qlcnic_82xx_check(adapter))
2964 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2965
2966 temp_state = qlcnic_get_temp_state(temp);
2967 temp_val = qlcnic_get_temp_val(temp);
2968
2969 if (temp_state == QLCNIC_TEMP_PANIC) {
2970 dev_err(&netdev->dev,
2971 "Device temperature %d degrees C exceeds"
2972 " maximum allowed. Hardware has been shut down.\n",
2973 temp_val);
2974 rv = 1;
2975 } else if (temp_state == QLCNIC_TEMP_WARN) {
2976 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2977 dev_err(&netdev->dev,
2978 "Device temperature %d degrees C "
2979 "exceeds operating range."
2980 " Immediate action needed.\n",
2981 temp_val);
2982 }
2983 } else {
2984 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2985 dev_info(&netdev->dev,
2986 "Device temperature is now %d degrees C"
2987 " in normal range.\n", temp_val);
2988 }
2989 }
2990 adapter->ahw->temp = temp_state;
2991 return rv;
2992 }
2993
dump_tx_ring_desc(struct qlcnic_host_tx_ring * tx_ring)2994 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2995 {
2996 int i;
2997
2998 for (i = 0; i < tx_ring->num_desc; i++) {
2999 pr_info("TX Desc: %d\n", i);
3000 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
3001 &tx_ring->desc_head[i],
3002 sizeof(struct cmd_desc_type0), true);
3003 }
3004 }
3005
qlcnic_dump_rings(struct qlcnic_adapter * adapter)3006 static void qlcnic_dump_rings(struct qlcnic_adapter *adapter)
3007 {
3008 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
3009 struct net_device *netdev = adapter->netdev;
3010 struct qlcnic_host_rds_ring *rds_ring;
3011 struct qlcnic_host_sds_ring *sds_ring;
3012 struct qlcnic_host_tx_ring *tx_ring;
3013 int ring;
3014
3015 if (!netdev || !netif_running(netdev))
3016 return;
3017
3018 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
3019 rds_ring = &recv_ctx->rds_rings[ring];
3020 if (!rds_ring)
3021 continue;
3022 netdev_info(netdev,
3023 "rds_ring=%d crb_rcv_producer=%d producer=%u num_desc=%u\n",
3024 ring, readl(rds_ring->crb_rcv_producer),
3025 rds_ring->producer, rds_ring->num_desc);
3026 }
3027
3028 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3029 sds_ring = &(recv_ctx->sds_rings[ring]);
3030 if (!sds_ring)
3031 continue;
3032 netdev_info(netdev,
3033 "sds_ring=%d crb_sts_consumer=%d consumer=%u crb_intr_mask=%d num_desc=%u\n",
3034 ring, readl(sds_ring->crb_sts_consumer),
3035 sds_ring->consumer, readl(sds_ring->crb_intr_mask),
3036 sds_ring->num_desc);
3037 }
3038
3039 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3040 tx_ring = &adapter->tx_ring[ring];
3041 if (!tx_ring)
3042 continue;
3043 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
3044 ring, tx_ring->ctx_id);
3045 netdev_info(netdev,
3046 "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
3047 tx_ring->tx_stats.xmit_finished,
3048 tx_ring->tx_stats.xmit_called,
3049 tx_ring->tx_stats.xmit_on,
3050 tx_ring->tx_stats.xmit_off);
3051
3052 if (tx_ring->crb_intr_mask)
3053 netdev_info(netdev, "crb_intr_mask=%d\n",
3054 readl(tx_ring->crb_intr_mask));
3055
3056 netdev_info(netdev,
3057 "hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
3058 readl(tx_ring->crb_cmd_producer),
3059 tx_ring->producer, tx_ring->sw_consumer,
3060 le32_to_cpu(*(tx_ring->hw_consumer)));
3061
3062 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
3063 tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
3064
3065 if (netif_msg_tx_err(adapter->ahw))
3066 dump_tx_ring_desc(tx_ring);
3067 }
3068
3069 }
3070
qlcnic_tx_timeout(struct net_device * netdev)3071 static void qlcnic_tx_timeout(struct net_device *netdev)
3072 {
3073 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3074
3075 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3076 return;
3077
3078 qlcnic_dump_rings(adapter);
3079
3080 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS ||
3081 netif_msg_tx_err(adapter->ahw)) {
3082 netdev_err(netdev, "Tx timeout, reset the adapter.\n");
3083 if (qlcnic_82xx_check(adapter))
3084 adapter->need_fw_reset = 1;
3085 else if (qlcnic_83xx_check(adapter))
3086 qlcnic_83xx_idc_request_reset(adapter,
3087 QLCNIC_FORCE_FW_DUMP_KEY);
3088 } else {
3089 netdev_err(netdev, "Tx timeout, reset adapter context.\n");
3090 adapter->ahw->reset_context = 1;
3091 }
3092 }
3093
qlcnic_get_stats(struct net_device * netdev)3094 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3095 {
3096 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3097 struct net_device_stats *stats = &netdev->stats;
3098
3099 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3100 qlcnic_update_stats(adapter);
3101
3102 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3103 stats->tx_packets = adapter->stats.xmitfinished;
3104 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3105 stats->tx_bytes = adapter->stats.txbytes;
3106 stats->rx_dropped = adapter->stats.rxdropped;
3107 stats->tx_dropped = adapter->stats.txdropped;
3108
3109 return stats;
3110 }
3111
qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter * adapter)3112 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3113 {
3114 u32 status;
3115
3116 status = readl(adapter->isr_int_vec);
3117
3118 if (!(status & adapter->ahw->int_vec_bit))
3119 return IRQ_NONE;
3120
3121 /* check interrupt state machine, to be sure */
3122 status = readl(adapter->crb_int_state_reg);
3123 if (!ISR_LEGACY_INT_TRIGGERED(status))
3124 return IRQ_NONE;
3125
3126 writel(0xffffffff, adapter->tgt_status_reg);
3127 /* read twice to ensure write is flushed */
3128 readl(adapter->isr_int_vec);
3129 readl(adapter->isr_int_vec);
3130
3131 return IRQ_HANDLED;
3132 }
3133
qlcnic_tmp_intr(int irq,void * data)3134 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3135 {
3136 struct qlcnic_host_sds_ring *sds_ring = data;
3137 struct qlcnic_adapter *adapter = sds_ring->adapter;
3138
3139 if (adapter->flags & QLCNIC_MSIX_ENABLED)
3140 goto done;
3141 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3142 writel(0xffffffff, adapter->tgt_status_reg);
3143 goto done;
3144 }
3145
3146 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3147 return IRQ_NONE;
3148
3149 done:
3150 adapter->ahw->diag_cnt++;
3151 qlcnic_enable_sds_intr(adapter, sds_ring);
3152 return IRQ_HANDLED;
3153 }
3154
qlcnic_intr(int irq,void * data)3155 static irqreturn_t qlcnic_intr(int irq, void *data)
3156 {
3157 struct qlcnic_host_sds_ring *sds_ring = data;
3158 struct qlcnic_adapter *adapter = sds_ring->adapter;
3159
3160 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3161 return IRQ_NONE;
3162
3163 napi_schedule(&sds_ring->napi);
3164
3165 return IRQ_HANDLED;
3166 }
3167
qlcnic_msi_intr(int irq,void * data)3168 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3169 {
3170 struct qlcnic_host_sds_ring *sds_ring = data;
3171 struct qlcnic_adapter *adapter = sds_ring->adapter;
3172
3173 /* clear interrupt */
3174 writel(0xffffffff, adapter->tgt_status_reg);
3175
3176 napi_schedule(&sds_ring->napi);
3177 return IRQ_HANDLED;
3178 }
3179
qlcnic_msix_intr(int irq,void * data)3180 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3181 {
3182 struct qlcnic_host_sds_ring *sds_ring = data;
3183
3184 napi_schedule(&sds_ring->napi);
3185 return IRQ_HANDLED;
3186 }
3187
qlcnic_msix_tx_intr(int irq,void * data)3188 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3189 {
3190 struct qlcnic_host_tx_ring *tx_ring = data;
3191
3192 napi_schedule(&tx_ring->napi);
3193 return IRQ_HANDLED;
3194 }
3195
3196 static void
qlcnic_idc_debug_info(struct qlcnic_adapter * adapter,u8 encoding)3197 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3198 {
3199 u32 val;
3200
3201 val = adapter->portnum & 0xf;
3202 val |= encoding << 7;
3203 val |= (jiffies - adapter->dev_rst_time) << 8;
3204
3205 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3206 adapter->dev_rst_time = jiffies;
3207 }
3208
3209 static int
qlcnic_set_drv_state(struct qlcnic_adapter * adapter,u8 state)3210 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3211 {
3212 u32 val;
3213
3214 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3215 state != QLCNIC_DEV_NEED_QUISCENT);
3216
3217 if (qlcnic_api_lock(adapter))
3218 return -EIO;
3219
3220 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3221
3222 if (state == QLCNIC_DEV_NEED_RESET)
3223 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3224 else if (state == QLCNIC_DEV_NEED_QUISCENT)
3225 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3226
3227 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3228
3229 qlcnic_api_unlock(adapter);
3230
3231 return 0;
3232 }
3233
3234 static int
qlcnic_clr_drv_state(struct qlcnic_adapter * adapter)3235 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3236 {
3237 u32 val;
3238
3239 if (qlcnic_api_lock(adapter))
3240 return -EBUSY;
3241
3242 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3243 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3244 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3245
3246 qlcnic_api_unlock(adapter);
3247
3248 return 0;
3249 }
3250
qlcnic_clr_all_drv_state(struct qlcnic_adapter * adapter,u8 failed)3251 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3252 {
3253 u32 val;
3254
3255 if (qlcnic_api_lock(adapter))
3256 goto err;
3257
3258 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3259 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3260 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3261
3262 if (failed) {
3263 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3264 QLCNIC_DEV_FAILED);
3265 dev_info(&adapter->pdev->dev,
3266 "Device state set to Failed. Please Reboot\n");
3267 } else if (!(val & 0x11111111))
3268 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3269 QLCNIC_DEV_COLD);
3270
3271 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3272 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3273 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3274
3275 qlcnic_api_unlock(adapter);
3276 err:
3277 adapter->fw_fail_cnt = 0;
3278 adapter->flags &= ~QLCNIC_FW_HANG;
3279 clear_bit(__QLCNIC_START_FW, &adapter->state);
3280 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3281 }
3282
3283 /* Grab api lock, before checking state */
3284 static int
qlcnic_check_drv_state(struct qlcnic_adapter * adapter)3285 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3286 {
3287 int act, state, active_mask;
3288 struct qlcnic_hardware_context *ahw = adapter->ahw;
3289
3290 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3291 act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3292
3293 if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3294 active_mask = (~(1 << (ahw->pci_func * 4)));
3295 act = act & active_mask;
3296 }
3297
3298 if (((state & 0x11111111) == (act & 0x11111111)) ||
3299 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3300 return 0;
3301 else
3302 return 1;
3303 }
3304
qlcnic_check_idc_ver(struct qlcnic_adapter * adapter)3305 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3306 {
3307 u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3308
3309 if (val != QLCNIC_DRV_IDC_VER) {
3310 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3311 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3312 }
3313
3314 return 0;
3315 }
3316
3317 static int
qlcnic_can_start_firmware(struct qlcnic_adapter * adapter)3318 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3319 {
3320 u32 val, prev_state;
3321 u8 dev_init_timeo = adapter->dev_init_timeo;
3322 u8 portnum = adapter->portnum;
3323 u8 ret;
3324
3325 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3326 return 1;
3327
3328 if (qlcnic_api_lock(adapter))
3329 return -1;
3330
3331 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3332 if (!(val & (1 << (portnum * 4)))) {
3333 QLC_DEV_SET_REF_CNT(val, portnum);
3334 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3335 }
3336
3337 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3338 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3339
3340 switch (prev_state) {
3341 case QLCNIC_DEV_COLD:
3342 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3343 QLCNIC_DEV_INITIALIZING);
3344 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3345 QLCNIC_DRV_IDC_VER);
3346 qlcnic_idc_debug_info(adapter, 0);
3347 qlcnic_api_unlock(adapter);
3348 return 1;
3349
3350 case QLCNIC_DEV_READY:
3351 ret = qlcnic_check_idc_ver(adapter);
3352 qlcnic_api_unlock(adapter);
3353 return ret;
3354
3355 case QLCNIC_DEV_NEED_RESET:
3356 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3357 QLC_DEV_SET_RST_RDY(val, portnum);
3358 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3359 break;
3360
3361 case QLCNIC_DEV_NEED_QUISCENT:
3362 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3363 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3364 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3365 break;
3366
3367 case QLCNIC_DEV_FAILED:
3368 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3369 qlcnic_api_unlock(adapter);
3370 return -1;
3371
3372 case QLCNIC_DEV_INITIALIZING:
3373 case QLCNIC_DEV_QUISCENT:
3374 break;
3375 }
3376
3377 qlcnic_api_unlock(adapter);
3378
3379 do {
3380 msleep(1000);
3381 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3382
3383 if (prev_state == QLCNIC_DEV_QUISCENT)
3384 continue;
3385 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3386
3387 if (!dev_init_timeo) {
3388 dev_err(&adapter->pdev->dev,
3389 "Waiting for device to initialize timeout\n");
3390 return -1;
3391 }
3392
3393 if (qlcnic_api_lock(adapter))
3394 return -1;
3395
3396 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3397 QLC_DEV_CLR_RST_QSCNT(val, portnum);
3398 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3399
3400 ret = qlcnic_check_idc_ver(adapter);
3401 qlcnic_api_unlock(adapter);
3402
3403 return ret;
3404 }
3405
3406 static void
qlcnic_fwinit_work(struct work_struct * work)3407 qlcnic_fwinit_work(struct work_struct *work)
3408 {
3409 struct qlcnic_adapter *adapter = container_of(work,
3410 struct qlcnic_adapter, fw_work.work);
3411 u32 dev_state = 0xf;
3412 u32 val;
3413
3414 if (qlcnic_api_lock(adapter))
3415 goto err_ret;
3416
3417 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3418 if (dev_state == QLCNIC_DEV_QUISCENT ||
3419 dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3420 qlcnic_api_unlock(adapter);
3421 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3422 FW_POLL_DELAY * 2);
3423 return;
3424 }
3425
3426 if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3427 qlcnic_api_unlock(adapter);
3428 goto wait_npar;
3429 }
3430
3431 if (dev_state == QLCNIC_DEV_INITIALIZING ||
3432 dev_state == QLCNIC_DEV_READY) {
3433 dev_info(&adapter->pdev->dev, "Detected state change from "
3434 "DEV_NEED_RESET, skipping ack check\n");
3435 goto skip_ack_check;
3436 }
3437
3438 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3439 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3440 adapter->reset_ack_timeo);
3441 goto skip_ack_check;
3442 }
3443
3444 if (!qlcnic_check_drv_state(adapter)) {
3445 skip_ack_check:
3446 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3447
3448 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3449 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3450 QLCNIC_DEV_INITIALIZING);
3451 set_bit(__QLCNIC_START_FW, &adapter->state);
3452 QLCDB(adapter, DRV, "Restarting fw\n");
3453 qlcnic_idc_debug_info(adapter, 0);
3454 val = QLC_SHARED_REG_RD32(adapter,
3455 QLCNIC_CRB_DRV_STATE);
3456 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3457 QLC_SHARED_REG_WR32(adapter,
3458 QLCNIC_CRB_DRV_STATE, val);
3459 }
3460
3461 qlcnic_api_unlock(adapter);
3462
3463 rtnl_lock();
3464 if (qlcnic_check_fw_dump_state(adapter) &&
3465 (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3466 QLCDB(adapter, DRV, "Take FW dump\n");
3467 qlcnic_dump_fw(adapter);
3468 adapter->flags |= QLCNIC_FW_HANG;
3469 }
3470 rtnl_unlock();
3471
3472 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3473 if (!adapter->nic_ops->start_firmware(adapter)) {
3474 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3475 adapter->fw_wait_cnt = 0;
3476 return;
3477 }
3478 goto err_ret;
3479 }
3480
3481 qlcnic_api_unlock(adapter);
3482
3483 wait_npar:
3484 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3485 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3486
3487 switch (dev_state) {
3488 case QLCNIC_DEV_READY:
3489 if (!qlcnic_start_firmware(adapter)) {
3490 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3491 adapter->fw_wait_cnt = 0;
3492 return;
3493 }
3494 case QLCNIC_DEV_FAILED:
3495 break;
3496 default:
3497 qlcnic_schedule_work(adapter,
3498 qlcnic_fwinit_work, FW_POLL_DELAY);
3499 return;
3500 }
3501
3502 err_ret:
3503 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3504 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3505 netif_device_attach(adapter->netdev);
3506 qlcnic_clr_all_drv_state(adapter, 0);
3507 }
3508
3509 static void
qlcnic_detach_work(struct work_struct * work)3510 qlcnic_detach_work(struct work_struct *work)
3511 {
3512 struct qlcnic_adapter *adapter = container_of(work,
3513 struct qlcnic_adapter, fw_work.work);
3514 struct net_device *netdev = adapter->netdev;
3515 u32 status;
3516
3517 netif_device_detach(netdev);
3518
3519 /* Dont grab rtnl lock during Quiscent mode */
3520 if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3521 if (netif_running(netdev))
3522 __qlcnic_down(adapter, netdev);
3523 } else
3524 qlcnic_down(adapter, netdev);
3525
3526 status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3527
3528 if (status & QLCNIC_RCODE_FATAL_ERROR) {
3529 dev_err(&adapter->pdev->dev,
3530 "Detaching the device: peg halt status1=0x%x\n",
3531 status);
3532
3533 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3534 dev_err(&adapter->pdev->dev,
3535 "On board active cooling fan failed. "
3536 "Device has been halted.\n");
3537 dev_err(&adapter->pdev->dev,
3538 "Replace the adapter.\n");
3539 }
3540
3541 goto err_ret;
3542 }
3543
3544 if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3545 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3546 adapter->ahw->temp);
3547 goto err_ret;
3548 }
3549
3550 /* Dont ack if this instance is the reset owner */
3551 if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3552 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3553 dev_err(&adapter->pdev->dev,
3554 "Failed to set driver state,"
3555 "detaching the device.\n");
3556 goto err_ret;
3557 }
3558 }
3559
3560 adapter->fw_wait_cnt = 0;
3561
3562 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3563
3564 return;
3565
3566 err_ret:
3567 netif_device_attach(netdev);
3568 qlcnic_clr_all_drv_state(adapter, 1);
3569 }
3570
3571 /*Transit NPAR state to NON Operational */
3572 static void
qlcnic_set_npar_non_operational(struct qlcnic_adapter * adapter)3573 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3574 {
3575 u32 state;
3576
3577 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3578 if (state == QLCNIC_DEV_NPAR_NON_OPER)
3579 return;
3580
3581 if (qlcnic_api_lock(adapter))
3582 return;
3583 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3584 QLCNIC_DEV_NPAR_NON_OPER);
3585 qlcnic_api_unlock(adapter);
3586 }
3587
qlcnic_82xx_dev_request_reset(struct qlcnic_adapter * adapter,u32 key)3588 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3589 u32 key)
3590 {
3591 u32 state, xg_val = 0, gb_val = 0;
3592
3593 qlcnic_xg_set_xg0_mask(xg_val);
3594 qlcnic_xg_set_xg1_mask(xg_val);
3595 QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3596 qlcnic_gb_set_gb0_mask(gb_val);
3597 qlcnic_gb_set_gb1_mask(gb_val);
3598 qlcnic_gb_set_gb2_mask(gb_val);
3599 qlcnic_gb_set_gb3_mask(gb_val);
3600 QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3601 dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3602 " on all ports\n");
3603 adapter->need_fw_reset = 1;
3604
3605 if (qlcnic_api_lock(adapter))
3606 return;
3607
3608 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3609
3610 if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3611 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3612 __func__);
3613 qlcnic_api_unlock(adapter);
3614
3615 return;
3616 }
3617
3618 if (state == QLCNIC_DEV_READY) {
3619 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3620 QLCNIC_DEV_NEED_RESET);
3621 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3622 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3623 qlcnic_idc_debug_info(adapter, 0);
3624 }
3625
3626 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3627 QLCNIC_DEV_NPAR_NON_OPER);
3628 qlcnic_api_unlock(adapter);
3629 }
3630
3631 /* Transit to NPAR READY state from NPAR NOT READY state */
3632 static void
qlcnic_dev_set_npar_ready(struct qlcnic_adapter * adapter)3633 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3634 {
3635 if (qlcnic_api_lock(adapter))
3636 return;
3637
3638 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3639 QLCNIC_DEV_NPAR_OPER);
3640 QLCDB(adapter, DRV, "NPAR operational state set\n");
3641
3642 qlcnic_api_unlock(adapter);
3643 }
3644
qlcnic_schedule_work(struct qlcnic_adapter * adapter,work_func_t func,int delay)3645 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3646 work_func_t func, int delay)
3647 {
3648 if (test_bit(__QLCNIC_AER, &adapter->state))
3649 return;
3650
3651 INIT_DELAYED_WORK(&adapter->fw_work, func);
3652 queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3653 round_jiffies_relative(delay));
3654 }
3655
3656 static void
qlcnic_attach_work(struct work_struct * work)3657 qlcnic_attach_work(struct work_struct *work)
3658 {
3659 struct qlcnic_adapter *adapter = container_of(work,
3660 struct qlcnic_adapter, fw_work.work);
3661 struct net_device *netdev = adapter->netdev;
3662 u32 npar_state;
3663
3664 if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3665 npar_state = QLC_SHARED_REG_RD32(adapter,
3666 QLCNIC_CRB_DEV_NPAR_STATE);
3667 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3668 qlcnic_clr_all_drv_state(adapter, 0);
3669 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3670 qlcnic_schedule_work(adapter, qlcnic_attach_work,
3671 FW_POLL_DELAY);
3672 else
3673 goto attach;
3674 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3675 return;
3676 }
3677 attach:
3678 qlcnic_dcb_get_info(adapter->dcb);
3679
3680 if (netif_running(netdev)) {
3681 if (qlcnic_up(adapter, netdev))
3682 goto done;
3683
3684 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3685 }
3686
3687 done:
3688 netif_device_attach(netdev);
3689 adapter->fw_fail_cnt = 0;
3690 adapter->flags &= ~QLCNIC_FW_HANG;
3691 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3692 if (adapter->portnum == 0)
3693 qlcnic_set_drv_version(adapter);
3694
3695 if (!qlcnic_clr_drv_state(adapter))
3696 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3697 FW_POLL_DELAY);
3698 }
3699
3700 static int
qlcnic_check_health(struct qlcnic_adapter * adapter)3701 qlcnic_check_health(struct qlcnic_adapter *adapter)
3702 {
3703 struct qlcnic_hardware_context *ahw = adapter->ahw;
3704 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3705 u32 state = 0, heartbeat;
3706 u32 peg_status;
3707 int err = 0;
3708
3709 if (qlcnic_check_temp(adapter))
3710 goto detach;
3711
3712 if (adapter->need_fw_reset)
3713 qlcnic_dev_request_reset(adapter, 0);
3714
3715 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3716 if (state == QLCNIC_DEV_NEED_RESET) {
3717 qlcnic_set_npar_non_operational(adapter);
3718 adapter->need_fw_reset = 1;
3719 } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3720 goto detach;
3721
3722 heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3723 if (heartbeat != adapter->heartbeat) {
3724 adapter->heartbeat = heartbeat;
3725 adapter->fw_fail_cnt = 0;
3726 if (adapter->need_fw_reset)
3727 goto detach;
3728
3729 if (ahw->reset_context && qlcnic_auto_fw_reset)
3730 qlcnic_reset_hw_context(adapter);
3731
3732 return 0;
3733 }
3734
3735 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3736 return 0;
3737
3738 adapter->flags |= QLCNIC_FW_HANG;
3739
3740 qlcnic_dev_request_reset(adapter, 0);
3741
3742 if (qlcnic_auto_fw_reset)
3743 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3744
3745 dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3746 peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3747 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3748 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3749 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3750 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3751 "PEG_NET_4_PC: 0x%x\n",
3752 peg_status,
3753 QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3754 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3755 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3756 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3757 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3758 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3759 if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3760 dev_err(&adapter->pdev->dev,
3761 "Firmware aborted with error code 0x00006700. "
3762 "Device is being reset.\n");
3763 detach:
3764 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3765 QLCNIC_DEV_NEED_RESET;
3766
3767 if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3768 &adapter->state)) {
3769
3770 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3771 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3772 } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3773 adapter->flags & QLCNIC_FW_RESET_OWNER) {
3774 qlcnic_dump_fw(adapter);
3775 }
3776
3777 return 1;
3778 }
3779
qlcnic_fw_poll_work(struct work_struct * work)3780 void qlcnic_fw_poll_work(struct work_struct *work)
3781 {
3782 struct qlcnic_adapter *adapter = container_of(work,
3783 struct qlcnic_adapter, fw_work.work);
3784
3785 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3786 goto reschedule;
3787
3788
3789 if (qlcnic_check_health(adapter))
3790 return;
3791
3792 if (adapter->fhash.fnum)
3793 qlcnic_prune_lb_filters(adapter);
3794
3795 reschedule:
3796 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3797 }
3798
qlcnic_is_first_func(struct pci_dev * pdev)3799 static int qlcnic_is_first_func(struct pci_dev *pdev)
3800 {
3801 struct pci_dev *oth_pdev;
3802 int val = pdev->devfn;
3803
3804 while (val-- > 0) {
3805 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3806 (pdev->bus), pdev->bus->number,
3807 PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3808 if (!oth_pdev)
3809 continue;
3810
3811 if (oth_pdev->current_state != PCI_D3cold) {
3812 pci_dev_put(oth_pdev);
3813 return 0;
3814 }
3815 pci_dev_put(oth_pdev);
3816 }
3817 return 1;
3818 }
3819
qlcnic_attach_func(struct pci_dev * pdev)3820 static int qlcnic_attach_func(struct pci_dev *pdev)
3821 {
3822 int err, first_func;
3823 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3824 struct net_device *netdev = adapter->netdev;
3825
3826 pdev->error_state = pci_channel_io_normal;
3827
3828 err = pci_enable_device(pdev);
3829 if (err)
3830 return err;
3831
3832 pci_set_master(pdev);
3833 pci_restore_state(pdev);
3834
3835 first_func = qlcnic_is_first_func(pdev);
3836
3837 if (qlcnic_api_lock(adapter))
3838 return -EINVAL;
3839
3840 if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3841 adapter->need_fw_reset = 1;
3842 set_bit(__QLCNIC_START_FW, &adapter->state);
3843 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3844 QLCNIC_DEV_INITIALIZING);
3845 QLCDB(adapter, DRV, "Restarting fw\n");
3846 }
3847 qlcnic_api_unlock(adapter);
3848
3849 err = qlcnic_start_firmware(adapter);
3850 if (err)
3851 return err;
3852
3853 qlcnic_clr_drv_state(adapter);
3854 kfree(adapter->msix_entries);
3855 adapter->msix_entries = NULL;
3856 err = qlcnic_setup_intr(adapter);
3857
3858 if (err) {
3859 kfree(adapter->msix_entries);
3860 netdev_err(netdev, "failed to setup interrupt\n");
3861 return err;
3862 }
3863
3864 if (netif_running(netdev)) {
3865 err = qlcnic_attach(adapter);
3866 if (err) {
3867 qlcnic_clr_all_drv_state(adapter, 1);
3868 clear_bit(__QLCNIC_AER, &adapter->state);
3869 netif_device_attach(netdev);
3870 return err;
3871 }
3872
3873 err = qlcnic_up(adapter, netdev);
3874 if (err)
3875 goto done;
3876
3877 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3878 }
3879 done:
3880 netif_device_attach(netdev);
3881 return err;
3882 }
3883
qlcnic_82xx_io_error_detected(struct pci_dev * pdev,pci_channel_state_t state)3884 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3885 pci_channel_state_t state)
3886 {
3887 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3888 struct net_device *netdev = adapter->netdev;
3889
3890 if (state == pci_channel_io_perm_failure)
3891 return PCI_ERS_RESULT_DISCONNECT;
3892
3893 if (state == pci_channel_io_normal)
3894 return PCI_ERS_RESULT_RECOVERED;
3895
3896 set_bit(__QLCNIC_AER, &adapter->state);
3897 netif_device_detach(netdev);
3898
3899 cancel_delayed_work_sync(&adapter->fw_work);
3900
3901 if (netif_running(netdev))
3902 qlcnic_down(adapter, netdev);
3903
3904 qlcnic_detach(adapter);
3905 qlcnic_teardown_intr(adapter);
3906
3907 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3908
3909 pci_save_state(pdev);
3910 pci_disable_device(pdev);
3911
3912 return PCI_ERS_RESULT_NEED_RESET;
3913 }
3914
qlcnic_82xx_io_slot_reset(struct pci_dev * pdev)3915 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3916 {
3917 pci_ers_result_t res;
3918
3919 rtnl_lock();
3920 res = qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3921 PCI_ERS_RESULT_RECOVERED;
3922 rtnl_unlock();
3923
3924 return res;
3925 }
3926
qlcnic_82xx_io_resume(struct pci_dev * pdev)3927 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3928 {
3929 u32 state;
3930 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3931
3932 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3933 if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3934 &adapter->state))
3935 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3936 FW_POLL_DELAY);
3937 }
3938
qlcnic_io_error_detected(struct pci_dev * pdev,pci_channel_state_t state)3939 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3940 pci_channel_state_t state)
3941 {
3942 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3943 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3944
3945 if (hw_ops->io_error_detected) {
3946 return hw_ops->io_error_detected(pdev, state);
3947 } else {
3948 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3949 return PCI_ERS_RESULT_DISCONNECT;
3950 }
3951 }
3952
qlcnic_io_slot_reset(struct pci_dev * pdev)3953 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3954 {
3955 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3956 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3957
3958 if (hw_ops->io_slot_reset) {
3959 return hw_ops->io_slot_reset(pdev);
3960 } else {
3961 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3962 return PCI_ERS_RESULT_DISCONNECT;
3963 }
3964 }
3965
qlcnic_io_resume(struct pci_dev * pdev)3966 static void qlcnic_io_resume(struct pci_dev *pdev)
3967 {
3968 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3969 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3970
3971 if (hw_ops->io_resume)
3972 hw_ops->io_resume(pdev);
3973 else
3974 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3975 }
3976
3977
3978 static int
qlcnicvf_start_firmware(struct qlcnic_adapter * adapter)3979 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3980 {
3981 int err;
3982
3983 err = qlcnic_can_start_firmware(adapter);
3984 if (err)
3985 return err;
3986
3987 err = qlcnic_check_npar_opertional(adapter);
3988 if (err)
3989 return err;
3990
3991 err = qlcnic_initialize_nic(adapter);
3992 if (err)
3993 return err;
3994
3995 qlcnic_check_options(adapter);
3996
3997 err = qlcnic_set_eswitch_port_config(adapter);
3998 if (err)
3999 return err;
4000
4001 adapter->need_fw_reset = 0;
4002
4003 return err;
4004 }
4005
qlcnic_validate_rings(struct qlcnic_adapter * adapter,__u32 ring_cnt,int queue_type)4006 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
4007 int queue_type)
4008 {
4009 struct net_device *netdev = adapter->netdev;
4010 char buf[8];
4011
4012 if (queue_type == QLCNIC_RX_QUEUE)
4013 strcpy(buf, "SDS");
4014 else
4015 strcpy(buf, "Tx");
4016
4017 if (!is_power_of_2(ring_cnt)) {
4018 netdev_err(netdev, "%s rings value should be a power of 2\n",
4019 buf);
4020 return -EINVAL;
4021 }
4022
4023 if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
4024 !qlcnic_check_multi_tx(adapter)) {
4025 netdev_err(netdev, "No Multi Tx queue support\n");
4026 return -EINVAL;
4027 }
4028
4029 if (ring_cnt > num_online_cpus()) {
4030 netdev_err(netdev,
4031 "%s value[%u] should not be higher than, number of online CPUs\n",
4032 buf, num_online_cpus());
4033 return -EINVAL;
4034 }
4035
4036 return 0;
4037 }
4038
qlcnic_setup_rings(struct qlcnic_adapter * adapter)4039 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
4040 {
4041 struct net_device *netdev = adapter->netdev;
4042 u8 tx_rings, rx_rings;
4043 int err;
4044
4045 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
4046 return -EBUSY;
4047
4048 tx_rings = adapter->drv_tss_rings;
4049 rx_rings = adapter->drv_rss_rings;
4050
4051 netif_device_detach(netdev);
4052
4053 err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings);
4054 if (err)
4055 goto done;
4056
4057 if (netif_running(netdev))
4058 __qlcnic_down(adapter, netdev);
4059
4060 qlcnic_detach(adapter);
4061
4062 if (qlcnic_83xx_check(adapter)) {
4063 qlcnic_83xx_free_mbx_intr(adapter);
4064 qlcnic_83xx_enable_mbx_poll(adapter);
4065 }
4066
4067 qlcnic_teardown_intr(adapter);
4068
4069 err = qlcnic_setup_intr(adapter);
4070 if (err) {
4071 kfree(adapter->msix_entries);
4072 netdev_err(netdev, "failed to setup interrupt\n");
4073 return err;
4074 }
4075
4076 /* Check if we need to update real_num_{tx|rx}_queues because
4077 * qlcnic_setup_intr() may change Tx/Rx rings size
4078 */
4079 if ((tx_rings != adapter->drv_tx_rings) ||
4080 (rx_rings != adapter->drv_sds_rings)) {
4081 err = qlcnic_set_real_num_queues(adapter,
4082 adapter->drv_tx_rings,
4083 adapter->drv_sds_rings);
4084 if (err)
4085 goto done;
4086 }
4087
4088 if (qlcnic_83xx_check(adapter)) {
4089 qlcnic_83xx_initialize_nic(adapter, 1);
4090 err = qlcnic_83xx_setup_mbx_intr(adapter);
4091 qlcnic_83xx_disable_mbx_poll(adapter);
4092 if (err) {
4093 dev_err(&adapter->pdev->dev,
4094 "failed to setup mbx interrupt\n");
4095 goto done;
4096 }
4097 }
4098
4099 if (netif_running(netdev)) {
4100 err = qlcnic_attach(adapter);
4101 if (err)
4102 goto done;
4103 err = __qlcnic_up(adapter, netdev);
4104 if (err)
4105 goto done;
4106 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4107 }
4108 done:
4109 netif_device_attach(netdev);
4110 clear_bit(__QLCNIC_RESETTING, &adapter->state);
4111 return err;
4112 }
4113
4114 #ifdef CONFIG_INET
4115
4116 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4117
4118 static void
qlcnic_config_indev_addr(struct qlcnic_adapter * adapter,struct net_device * dev,unsigned long event)4119 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4120 struct net_device *dev, unsigned long event)
4121 {
4122 const struct in_ifaddr *ifa;
4123 struct in_device *indev;
4124
4125 indev = in_dev_get(dev);
4126 if (!indev)
4127 return;
4128
4129 in_dev_for_each_ifa_rtnl(ifa, indev) {
4130 switch (event) {
4131 case NETDEV_UP:
4132 qlcnic_config_ipaddr(adapter,
4133 ifa->ifa_address, QLCNIC_IP_UP);
4134 break;
4135 case NETDEV_DOWN:
4136 qlcnic_config_ipaddr(adapter,
4137 ifa->ifa_address, QLCNIC_IP_DOWN);
4138 break;
4139 default:
4140 break;
4141 }
4142 }
4143
4144 in_dev_put(indev);
4145 }
4146
qlcnic_restore_indev_addr(struct net_device * netdev,unsigned long event)4147 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4148 {
4149 struct qlcnic_adapter *adapter = netdev_priv(netdev);
4150 struct net_device *dev;
4151 u16 vid;
4152
4153 qlcnic_config_indev_addr(adapter, netdev, event);
4154
4155 rcu_read_lock();
4156 for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4157 dev = __vlan_find_dev_deep_rcu(netdev, htons(ETH_P_8021Q), vid);
4158 if (!dev)
4159 continue;
4160 qlcnic_config_indev_addr(adapter, dev, event);
4161 }
4162 rcu_read_unlock();
4163 }
4164
qlcnic_netdev_event(struct notifier_block * this,unsigned long event,void * ptr)4165 static int qlcnic_netdev_event(struct notifier_block *this,
4166 unsigned long event, void *ptr)
4167 {
4168 struct qlcnic_adapter *adapter;
4169 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4170
4171 recheck:
4172 if (dev == NULL)
4173 goto done;
4174
4175 if (is_vlan_dev(dev)) {
4176 dev = vlan_dev_real_dev(dev);
4177 goto recheck;
4178 }
4179
4180 if (!is_qlcnic_netdev(dev))
4181 goto done;
4182
4183 adapter = netdev_priv(dev);
4184
4185 if (!adapter)
4186 goto done;
4187
4188 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4189 goto done;
4190
4191 qlcnic_config_indev_addr(adapter, dev, event);
4192 done:
4193 return NOTIFY_DONE;
4194 }
4195
4196 static int
qlcnic_inetaddr_event(struct notifier_block * this,unsigned long event,void * ptr)4197 qlcnic_inetaddr_event(struct notifier_block *this,
4198 unsigned long event, void *ptr)
4199 {
4200 struct qlcnic_adapter *adapter;
4201 struct net_device *dev;
4202
4203 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4204
4205 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4206
4207 recheck:
4208 if (dev == NULL)
4209 goto done;
4210
4211 if (is_vlan_dev(dev)) {
4212 dev = vlan_dev_real_dev(dev);
4213 goto recheck;
4214 }
4215
4216 if (!is_qlcnic_netdev(dev))
4217 goto done;
4218
4219 adapter = netdev_priv(dev);
4220
4221 if (!adapter)
4222 goto done;
4223
4224 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4225 goto done;
4226
4227 switch (event) {
4228 case NETDEV_UP:
4229 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4230
4231 break;
4232 case NETDEV_DOWN:
4233 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4234
4235 break;
4236 default:
4237 break;
4238 }
4239
4240 done:
4241 return NOTIFY_DONE;
4242 }
4243
4244 static struct notifier_block qlcnic_netdev_cb = {
4245 .notifier_call = qlcnic_netdev_event,
4246 };
4247
4248 static struct notifier_block qlcnic_inetaddr_cb = {
4249 .notifier_call = qlcnic_inetaddr_event,
4250 };
4251 #else
qlcnic_restore_indev_addr(struct net_device * dev,unsigned long event)4252 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4253 { }
4254 #endif
4255 static const struct pci_error_handlers qlcnic_err_handler = {
4256 .error_detected = qlcnic_io_error_detected,
4257 .slot_reset = qlcnic_io_slot_reset,
4258 .resume = qlcnic_io_resume,
4259 };
4260
4261 static struct pci_driver qlcnic_driver = {
4262 .name = qlcnic_driver_name,
4263 .id_table = qlcnic_pci_tbl,
4264 .probe = qlcnic_probe,
4265 .remove = qlcnic_remove,
4266 #ifdef CONFIG_PM
4267 .suspend = qlcnic_suspend,
4268 .resume = qlcnic_resume,
4269 #endif
4270 .shutdown = qlcnic_shutdown,
4271 .err_handler = &qlcnic_err_handler,
4272 #ifdef CONFIG_QLCNIC_SRIOV
4273 .sriov_configure = qlcnic_pci_sriov_configure,
4274 #endif
4275
4276 };
4277
qlcnic_init_module(void)4278 static int __init qlcnic_init_module(void)
4279 {
4280 int ret;
4281
4282 printk(KERN_INFO "%s\n", qlcnic_driver_string);
4283
4284 #ifdef CONFIG_INET
4285 register_netdevice_notifier(&qlcnic_netdev_cb);
4286 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4287 #endif
4288
4289 ret = pci_register_driver(&qlcnic_driver);
4290 if (ret) {
4291 #ifdef CONFIG_INET
4292 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4293 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4294 #endif
4295 }
4296
4297 return ret;
4298 }
4299
4300 module_init(qlcnic_init_module);
4301
qlcnic_exit_module(void)4302 static void __exit qlcnic_exit_module(void)
4303 {
4304 pci_unregister_driver(&qlcnic_driver);
4305
4306 #ifdef CONFIG_INET
4307 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4308 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4309 #endif
4310 }
4311
4312 module_exit(qlcnic_exit_module);
4313
