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)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 {
401 struct qlcnic_adapter *adapter = netdev_priv(netdev);
402 int err = 0;
403
404 if (!adapter->fdb_mac_learn)
405 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, vid, flags);
406
407 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
408 !qlcnic_sriov_check(adapter)) {
409 pr_info("%s: FDB e-switch is not enabled\n", __func__);
410 return -EOPNOTSUPP;
411 }
412
413 if (ether_addr_equal(addr, adapter->mac_addr))
414 return err;
415
416 if (is_unicast_ether_addr(addr)) {
417 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
418 err = dev_uc_add_excl(netdev, addr);
419 else
420 err = -ENOMEM;
421 } else if (is_multicast_ether_addr(addr)) {
422 err = dev_mc_add_excl(netdev, addr);
423 } else {
424 err = -EINVAL;
425 }
426
427 return err;
428 }
429
qlcnic_fdb_dump(struct sk_buff * skb,struct netlink_callback * ncb,struct net_device * netdev,struct net_device * filter_dev,int * idx)430 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
431 struct net_device *netdev,
432 struct net_device *filter_dev, int *idx)
433 {
434 struct qlcnic_adapter *adapter = netdev_priv(netdev);
435 int err = 0;
436
437 if (!adapter->fdb_mac_learn)
438 return ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
439
440 if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
441 qlcnic_sriov_check(adapter))
442 err = ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
443
444 return err;
445 }
446
qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter * adapter)447 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
448 {
449 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
450 usleep_range(10000, 11000);
451
452 if (!adapter->fw_work.work.func)
453 return;
454
455 cancel_delayed_work_sync(&adapter->fw_work);
456 }
457
qlcnic_get_phys_port_id(struct net_device * netdev,struct netdev_phys_item_id * ppid)458 static int qlcnic_get_phys_port_id(struct net_device *netdev,
459 struct netdev_phys_item_id *ppid)
460 {
461 struct qlcnic_adapter *adapter = netdev_priv(netdev);
462 struct qlcnic_hardware_context *ahw = adapter->ahw;
463
464 if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
465 return -EOPNOTSUPP;
466
467 ppid->id_len = sizeof(ahw->phys_port_id);
468 memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
469
470 return 0;
471 }
472
qlcnic_add_vxlan_port(struct net_device * netdev,struct udp_tunnel_info * ti)473 static void qlcnic_add_vxlan_port(struct net_device *netdev,
474 struct udp_tunnel_info *ti)
475 {
476 struct qlcnic_adapter *adapter = netdev_priv(netdev);
477 struct qlcnic_hardware_context *ahw = adapter->ahw;
478
479 if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
480 return;
481
482 /* Adapter supports only one VXLAN port. Use very first port
483 * for enabling offload
484 */
485 if (!qlcnic_encap_rx_offload(adapter))
486 return;
487 if (!ahw->vxlan_port_count) {
488 ahw->vxlan_port_count = 1;
489 ahw->vxlan_port = ntohs(ti->port);
490 adapter->flags |= QLCNIC_ADD_VXLAN_PORT;
491 return;
492 }
493 if (ahw->vxlan_port == ntohs(ti->port))
494 ahw->vxlan_port_count++;
495
496 }
497
qlcnic_del_vxlan_port(struct net_device * netdev,struct udp_tunnel_info * ti)498 static void qlcnic_del_vxlan_port(struct net_device *netdev,
499 struct udp_tunnel_info *ti)
500 {
501 struct qlcnic_adapter *adapter = netdev_priv(netdev);
502 struct qlcnic_hardware_context *ahw = adapter->ahw;
503
504 if (ti->type != UDP_TUNNEL_TYPE_VXLAN)
505 return;
506
507 if (!qlcnic_encap_rx_offload(adapter) || !ahw->vxlan_port_count ||
508 (ahw->vxlan_port != ntohs(ti->port)))
509 return;
510
511 ahw->vxlan_port_count--;
512 if (!ahw->vxlan_port_count)
513 adapter->flags |= QLCNIC_DEL_VXLAN_PORT;
514 }
515
qlcnic_features_check(struct sk_buff * skb,struct net_device * dev,netdev_features_t features)516 static netdev_features_t qlcnic_features_check(struct sk_buff *skb,
517 struct net_device *dev,
518 netdev_features_t features)
519 {
520 features = vlan_features_check(skb, features);
521 return vxlan_features_check(skb, features);
522 }
523
524 static const struct net_device_ops qlcnic_netdev_ops = {
525 .ndo_open = qlcnic_open,
526 .ndo_stop = qlcnic_close,
527 .ndo_start_xmit = qlcnic_xmit_frame,
528 .ndo_get_stats = qlcnic_get_stats,
529 .ndo_validate_addr = eth_validate_addr,
530 .ndo_set_rx_mode = qlcnic_set_multi,
531 .ndo_set_mac_address = qlcnic_set_mac,
532 .ndo_change_mtu = qlcnic_change_mtu,
533 .ndo_fix_features = qlcnic_fix_features,
534 .ndo_set_features = qlcnic_set_features,
535 .ndo_tx_timeout = qlcnic_tx_timeout,
536 .ndo_vlan_rx_add_vid = qlcnic_vlan_rx_add,
537 .ndo_vlan_rx_kill_vid = qlcnic_vlan_rx_del,
538 .ndo_fdb_add = qlcnic_fdb_add,
539 .ndo_fdb_del = qlcnic_fdb_del,
540 .ndo_fdb_dump = qlcnic_fdb_dump,
541 .ndo_get_phys_port_id = qlcnic_get_phys_port_id,
542 .ndo_udp_tunnel_add = qlcnic_add_vxlan_port,
543 .ndo_udp_tunnel_del = qlcnic_del_vxlan_port,
544 .ndo_features_check = qlcnic_features_check,
545 #ifdef CONFIG_QLCNIC_SRIOV
546 .ndo_set_vf_mac = qlcnic_sriov_set_vf_mac,
547 .ndo_set_vf_rate = qlcnic_sriov_set_vf_tx_rate,
548 .ndo_get_vf_config = qlcnic_sriov_get_vf_config,
549 .ndo_set_vf_vlan = qlcnic_sriov_set_vf_vlan,
550 .ndo_set_vf_spoofchk = qlcnic_sriov_set_vf_spoofchk,
551 #endif
552 };
553
554 static const struct net_device_ops qlcnic_netdev_failed_ops = {
555 .ndo_open = qlcnic_open,
556 };
557
558 static struct qlcnic_nic_template qlcnic_ops = {
559 .config_bridged_mode = qlcnic_config_bridged_mode,
560 .config_led = qlcnic_82xx_config_led,
561 .start_firmware = qlcnic_82xx_start_firmware,
562 .request_reset = qlcnic_82xx_dev_request_reset,
563 .cancel_idc_work = qlcnic_82xx_cancel_idc_work,
564 .napi_add = qlcnic_82xx_napi_add,
565 .napi_del = qlcnic_82xx_napi_del,
566 .config_ipaddr = qlcnic_82xx_config_ipaddr,
567 .shutdown = qlcnic_82xx_shutdown,
568 .resume = qlcnic_82xx_resume,
569 .clear_legacy_intr = qlcnic_82xx_clear_legacy_intr,
570 };
571
572 struct qlcnic_nic_template qlcnic_vf_ops = {
573 .config_bridged_mode = qlcnicvf_config_bridged_mode,
574 .config_led = qlcnicvf_config_led,
575 .start_firmware = qlcnicvf_start_firmware
576 };
577
578 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
579 .read_crb = qlcnic_82xx_read_crb,
580 .write_crb = qlcnic_82xx_write_crb,
581 .read_reg = qlcnic_82xx_hw_read_wx_2M,
582 .write_reg = qlcnic_82xx_hw_write_wx_2M,
583 .get_mac_address = qlcnic_82xx_get_mac_address,
584 .setup_intr = qlcnic_82xx_setup_intr,
585 .alloc_mbx_args = qlcnic_82xx_alloc_mbx_args,
586 .mbx_cmd = qlcnic_82xx_issue_cmd,
587 .get_func_no = qlcnic_82xx_get_func_no,
588 .api_lock = qlcnic_82xx_api_lock,
589 .api_unlock = qlcnic_82xx_api_unlock,
590 .add_sysfs = qlcnic_82xx_add_sysfs,
591 .remove_sysfs = qlcnic_82xx_remove_sysfs,
592 .process_lb_rcv_ring_diag = qlcnic_82xx_process_rcv_ring_diag,
593 .create_rx_ctx = qlcnic_82xx_fw_cmd_create_rx_ctx,
594 .create_tx_ctx = qlcnic_82xx_fw_cmd_create_tx_ctx,
595 .del_rx_ctx = qlcnic_82xx_fw_cmd_del_rx_ctx,
596 .del_tx_ctx = qlcnic_82xx_fw_cmd_del_tx_ctx,
597 .setup_link_event = qlcnic_82xx_linkevent_request,
598 .get_nic_info = qlcnic_82xx_get_nic_info,
599 .get_pci_info = qlcnic_82xx_get_pci_info,
600 .set_nic_info = qlcnic_82xx_set_nic_info,
601 .change_macvlan = qlcnic_82xx_sre_macaddr_change,
602 .napi_enable = qlcnic_82xx_napi_enable,
603 .napi_disable = qlcnic_82xx_napi_disable,
604 .config_intr_coal = qlcnic_82xx_config_intr_coalesce,
605 .config_rss = qlcnic_82xx_config_rss,
606 .config_hw_lro = qlcnic_82xx_config_hw_lro,
607 .config_loopback = qlcnic_82xx_set_lb_mode,
608 .clear_loopback = qlcnic_82xx_clear_lb_mode,
609 .config_promisc_mode = qlcnic_82xx_nic_set_promisc,
610 .change_l2_filter = qlcnic_82xx_change_filter,
611 .get_board_info = qlcnic_82xx_get_board_info,
612 .set_mac_filter_count = qlcnic_82xx_set_mac_filter_count,
613 .free_mac_list = qlcnic_82xx_free_mac_list,
614 .read_phys_port_id = qlcnic_82xx_read_phys_port_id,
615 .io_error_detected = qlcnic_82xx_io_error_detected,
616 .io_slot_reset = qlcnic_82xx_io_slot_reset,
617 .io_resume = qlcnic_82xx_io_resume,
618 .get_beacon_state = qlcnic_82xx_get_beacon_state,
619 .enable_sds_intr = qlcnic_82xx_enable_sds_intr,
620 .disable_sds_intr = qlcnic_82xx_disable_sds_intr,
621 .enable_tx_intr = qlcnic_82xx_enable_tx_intr,
622 .disable_tx_intr = qlcnic_82xx_disable_tx_intr,
623 .get_saved_state = qlcnic_82xx_get_saved_state,
624 .set_saved_state = qlcnic_82xx_set_saved_state,
625 .cache_tmpl_hdr_values = qlcnic_82xx_cache_tmpl_hdr_values,
626 .get_cap_size = qlcnic_82xx_get_cap_size,
627 .set_sys_info = qlcnic_82xx_set_sys_info,
628 .store_cap_mask = qlcnic_82xx_store_cap_mask,
629 .encap_rx_offload = qlcnic_82xx_encap_rx_offload,
630 .encap_tx_offload = qlcnic_82xx_encap_tx_offload,
631 };
632
qlcnic_check_multi_tx_capability(struct qlcnic_adapter * adapter)633 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
634 {
635 struct qlcnic_hardware_context *ahw = adapter->ahw;
636
637 if (qlcnic_82xx_check(adapter) &&
638 (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
639 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
640 return 0;
641 } else {
642 return 1;
643 }
644 }
645
qlcnic_max_rings(struct qlcnic_adapter * adapter,u8 ring_cnt,int queue_type)646 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
647 int queue_type)
648 {
649 int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
650
651 if (queue_type == QLCNIC_RX_QUEUE)
652 max_rings = adapter->max_sds_rings;
653 else if (queue_type == QLCNIC_TX_QUEUE)
654 max_rings = adapter->max_tx_rings;
655
656 num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
657 max_rings));
658
659 if (ring_cnt > num_rings)
660 return num_rings;
661 else
662 return ring_cnt;
663 }
664
qlcnic_set_tx_ring_count(struct qlcnic_adapter * adapter,u8 tx_cnt)665 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
666 {
667 /* 83xx adapter does not have max_tx_rings intialized in probe */
668 if (adapter->max_tx_rings)
669 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
670 QLCNIC_TX_QUEUE);
671 else
672 adapter->drv_tx_rings = tx_cnt;
673 }
674
qlcnic_set_sds_ring_count(struct qlcnic_adapter * adapter,u8 rx_cnt)675 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
676 {
677 /* 83xx adapter does not have max_sds_rings intialized in probe */
678 if (adapter->max_sds_rings)
679 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
680 QLCNIC_RX_QUEUE);
681 else
682 adapter->drv_sds_rings = rx_cnt;
683 }
684
qlcnic_setup_tss_rss_intr(struct qlcnic_adapter * adapter)685 int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
686 {
687 struct pci_dev *pdev = adapter->pdev;
688 int num_msix = 0, err = 0, vector;
689
690 adapter->flags &= ~QLCNIC_TSS_RSS;
691
692 if (adapter->drv_tss_rings > 0)
693 num_msix += adapter->drv_tss_rings;
694 else
695 num_msix += adapter->drv_tx_rings;
696
697 if (adapter->drv_rss_rings > 0)
698 num_msix += adapter->drv_rss_rings;
699 else
700 num_msix += adapter->drv_sds_rings;
701
702 if (qlcnic_83xx_check(adapter))
703 num_msix += 1;
704
705 if (!adapter->msix_entries) {
706 adapter->msix_entries = kcalloc(num_msix,
707 sizeof(struct msix_entry),
708 GFP_KERNEL);
709 if (!adapter->msix_entries)
710 return -ENOMEM;
711 }
712
713 for (vector = 0; vector < num_msix; vector++)
714 adapter->msix_entries[vector].entry = vector;
715
716 restore:
717 err = pci_enable_msix_exact(pdev, adapter->msix_entries, num_msix);
718 if (err == -ENOSPC) {
719 if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
720 return err;
721
722 netdev_info(adapter->netdev,
723 "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
724 num_msix, err);
725
726 num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
727
728 /* Set rings to 0 so we can restore original TSS/RSS count */
729 adapter->drv_tss_rings = 0;
730 adapter->drv_rss_rings = 0;
731
732 if (qlcnic_83xx_check(adapter))
733 num_msix += 1;
734
735 netdev_info(adapter->netdev,
736 "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
737 adapter->drv_tx_rings, adapter->drv_sds_rings,
738 num_msix);
739
740 goto restore;
741 } else if (err < 0) {
742 return err;
743 }
744
745 adapter->ahw->num_msix = num_msix;
746 if (adapter->drv_tss_rings > 0)
747 adapter->drv_tx_rings = adapter->drv_tss_rings;
748
749 if (adapter->drv_rss_rings > 0)
750 adapter->drv_sds_rings = adapter->drv_rss_rings;
751
752 return 0;
753 }
754
qlcnic_enable_msix(struct qlcnic_adapter * adapter,u32 num_msix)755 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
756 {
757 struct pci_dev *pdev = adapter->pdev;
758 int err, vector;
759
760 if (!adapter->msix_entries) {
761 adapter->msix_entries = kcalloc(num_msix,
762 sizeof(struct msix_entry),
763 GFP_KERNEL);
764 if (!adapter->msix_entries)
765 return -ENOMEM;
766 }
767
768 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
769
770 if (adapter->ahw->msix_supported) {
771 enable_msix:
772 for (vector = 0; vector < num_msix; vector++)
773 adapter->msix_entries[vector].entry = vector;
774
775 err = pci_enable_msix_range(pdev,
776 adapter->msix_entries, 1, num_msix);
777
778 if (err == num_msix) {
779 adapter->flags |= QLCNIC_MSIX_ENABLED;
780 adapter->ahw->num_msix = num_msix;
781 dev_info(&pdev->dev, "using msi-x interrupts\n");
782 return 0;
783 } else if (err > 0) {
784 pci_disable_msix(pdev);
785
786 dev_info(&pdev->dev,
787 "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
788 num_msix, err);
789
790 if (qlcnic_82xx_check(adapter)) {
791 num_msix = rounddown_pow_of_two(err);
792 if (err < QLCNIC_82XX_MINIMUM_VECTOR)
793 return -ENOSPC;
794 } else {
795 num_msix = rounddown_pow_of_two(err - 1);
796 num_msix += 1;
797 if (err < QLCNIC_83XX_MINIMUM_VECTOR)
798 return -ENOSPC;
799 }
800
801 if (qlcnic_82xx_check(adapter) &&
802 !qlcnic_check_multi_tx(adapter)) {
803 adapter->drv_sds_rings = num_msix;
804 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
805 } else {
806 /* Distribute vectors equally */
807 adapter->drv_tx_rings = num_msix / 2;
808 adapter->drv_sds_rings = adapter->drv_tx_rings;
809 }
810
811 if (num_msix) {
812 dev_info(&pdev->dev,
813 "Trying to allocate %d MSI-X interrupt vectors\n",
814 num_msix);
815 goto enable_msix;
816 }
817 } else {
818 dev_info(&pdev->dev,
819 "Unable to allocate %d MSI-X vectors, err=%d\n",
820 num_msix, err);
821 return err;
822 }
823 }
824
825 return -EIO;
826 }
827
qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter * adapter)828 static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
829 {
830 int num_msix;
831
832 num_msix = adapter->drv_sds_rings;
833
834 if (qlcnic_check_multi_tx(adapter))
835 num_msix += adapter->drv_tx_rings;
836 else
837 num_msix += QLCNIC_SINGLE_RING;
838
839 return num_msix;
840 }
841
qlcnic_enable_msi_legacy(struct qlcnic_adapter * adapter)842 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
843 {
844 int err = 0;
845 u32 offset, mask_reg;
846 const struct qlcnic_legacy_intr_set *legacy_intrp;
847 struct qlcnic_hardware_context *ahw = adapter->ahw;
848 struct pci_dev *pdev = adapter->pdev;
849
850 if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
851 adapter->flags |= QLCNIC_MSI_ENABLED;
852 offset = msi_tgt_status[adapter->ahw->pci_func];
853 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
854 offset);
855 dev_info(&pdev->dev, "using msi interrupts\n");
856 adapter->msix_entries[0].vector = pdev->irq;
857 return err;
858 }
859
860 if (qlcnic_use_msi || qlcnic_use_msi_x)
861 return -EOPNOTSUPP;
862
863 legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
864 adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
865 offset = legacy_intrp->tgt_status_reg;
866 adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
867 mask_reg = legacy_intrp->tgt_mask_reg;
868 adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
869 adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
870 adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
871 dev_info(&pdev->dev, "using legacy interrupts\n");
872 adapter->msix_entries[0].vector = pdev->irq;
873 return err;
874 }
875
qlcnic_82xx_setup_intr(struct qlcnic_adapter * adapter)876 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
877 {
878 int num_msix, err = 0;
879
880 if (adapter->flags & QLCNIC_TSS_RSS) {
881 err = qlcnic_setup_tss_rss_intr(adapter);
882 if (err < 0)
883 return err;
884 num_msix = adapter->ahw->num_msix;
885 } else {
886 num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
887
888 err = qlcnic_enable_msix(adapter, num_msix);
889 if (err == -ENOMEM)
890 return err;
891
892 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
893 qlcnic_disable_multi_tx(adapter);
894 adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
895
896 err = qlcnic_enable_msi_legacy(adapter);
897 if (err)
898 return err;
899 }
900 }
901
902 return 0;
903 }
904
qlcnic_82xx_mq_intrpt(struct qlcnic_adapter * adapter,int op_type)905 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
906 {
907 struct qlcnic_hardware_context *ahw = adapter->ahw;
908 int err, i;
909
910 if (qlcnic_check_multi_tx(adapter) &&
911 !ahw->diag_test &&
912 (adapter->flags & QLCNIC_MSIX_ENABLED)) {
913 ahw->intr_tbl =
914 vzalloc(array_size(sizeof(struct qlcnic_intrpt_config),
915 ahw->num_msix));
916 if (!ahw->intr_tbl)
917 return -ENOMEM;
918
919 for (i = 0; i < ahw->num_msix; i++) {
920 ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
921 ahw->intr_tbl[i].id = i;
922 ahw->intr_tbl[i].src = 0;
923 }
924
925 err = qlcnic_82xx_config_intrpt(adapter, 1);
926 if (err)
927 dev_err(&adapter->pdev->dev,
928 "Failed to configure Interrupt for %d vector\n",
929 ahw->num_msix);
930 return err;
931 }
932
933 return 0;
934 }
935
qlcnic_teardown_intr(struct qlcnic_adapter * adapter)936 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
937 {
938 if (adapter->flags & QLCNIC_MSIX_ENABLED)
939 pci_disable_msix(adapter->pdev);
940 if (adapter->flags & QLCNIC_MSI_ENABLED)
941 pci_disable_msi(adapter->pdev);
942
943 kfree(adapter->msix_entries);
944 adapter->msix_entries = NULL;
945
946 if (adapter->ahw->intr_tbl) {
947 vfree(adapter->ahw->intr_tbl);
948 adapter->ahw->intr_tbl = NULL;
949 }
950 }
951
qlcnic_cleanup_pci_map(struct qlcnic_hardware_context * ahw)952 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
953 {
954 if (ahw->pci_base0 != NULL)
955 iounmap(ahw->pci_base0);
956 }
957
qlcnic_get_act_pci_func(struct qlcnic_adapter * adapter)958 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
959 {
960 struct qlcnic_hardware_context *ahw = adapter->ahw;
961 struct qlcnic_pci_info *pci_info;
962 int ret;
963
964 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
965 switch (ahw->port_type) {
966 case QLCNIC_GBE:
967 ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
968 break;
969 case QLCNIC_XGBE:
970 ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
971 break;
972 }
973 return 0;
974 }
975
976 if (ahw->op_mode == QLCNIC_MGMT_FUNC)
977 return 0;
978
979 pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
980 if (!pci_info)
981 return -ENOMEM;
982
983 ret = qlcnic_get_pci_info(adapter, pci_info);
984 kfree(pci_info);
985 return ret;
986 }
987
qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter * adapter)988 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
989 {
990 bool ret = false;
991
992 if (qlcnic_84xx_check(adapter)) {
993 ret = true;
994 } else if (qlcnic_83xx_check(adapter)) {
995 if (adapter->ahw->extra_capability[0] &
996 QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
997 ret = true;
998 else
999 ret = false;
1000 }
1001
1002 return ret;
1003 }
1004
qlcnic_init_pci_info(struct qlcnic_adapter * adapter)1005 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
1006 {
1007 struct qlcnic_hardware_context *ahw = adapter->ahw;
1008 struct qlcnic_pci_info *pci_info;
1009 int i, id = 0, ret = 0, j = 0;
1010 u16 act_pci_func;
1011 u8 pfn;
1012
1013 pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
1014 if (!pci_info)
1015 return -ENOMEM;
1016
1017 ret = qlcnic_get_pci_info(adapter, pci_info);
1018 if (ret)
1019 goto err_pci_info;
1020
1021 act_pci_func = ahw->total_nic_func;
1022
1023 adapter->npars = kcalloc(act_pci_func,
1024 sizeof(struct qlcnic_npar_info),
1025 GFP_KERNEL);
1026 if (!adapter->npars) {
1027 ret = -ENOMEM;
1028 goto err_pci_info;
1029 }
1030
1031 adapter->eswitch = kcalloc(QLCNIC_NIU_MAX_XG_PORTS,
1032 sizeof(struct qlcnic_eswitch),
1033 GFP_KERNEL);
1034 if (!adapter->eswitch) {
1035 ret = -ENOMEM;
1036 goto err_npars;
1037 }
1038
1039 for (i = 0; i < ahw->max_vnic_func; i++) {
1040 pfn = pci_info[i].id;
1041
1042 if (pfn >= ahw->max_vnic_func) {
1043 ret = -EINVAL;
1044 dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
1045 __func__, pfn, ahw->max_vnic_func);
1046 goto err_eswitch;
1047 }
1048
1049 if (!pci_info[i].active ||
1050 (pci_info[i].type != QLCNIC_TYPE_NIC))
1051 continue;
1052
1053 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1054 if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1055 &id))
1056 adapter->npars[j].eswitch_status = true;
1057 else
1058 continue;
1059 } else {
1060 adapter->npars[j].eswitch_status = true;
1061 }
1062
1063 adapter->npars[j].pci_func = pfn;
1064 adapter->npars[j].active = (u8)pci_info[i].active;
1065 adapter->npars[j].type = (u8)pci_info[i].type;
1066 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1067 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1068 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1069
1070 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1071 j++;
1072 }
1073
1074 /* Update eSwitch status for adapters without per port eSwitch
1075 * configuration capability
1076 */
1077 if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1078 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1079 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1080 }
1081
1082 kfree(pci_info);
1083 return 0;
1084
1085 err_eswitch:
1086 kfree(adapter->eswitch);
1087 adapter->eswitch = NULL;
1088 err_npars:
1089 kfree(adapter->npars);
1090 adapter->npars = NULL;
1091 err_pci_info:
1092 kfree(pci_info);
1093
1094 return ret;
1095 }
1096
1097 static int
qlcnic_set_function_modes(struct qlcnic_adapter * adapter)1098 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1099 {
1100 u8 id;
1101 int ret;
1102 u32 data = QLCNIC_MGMT_FUNC;
1103 struct qlcnic_hardware_context *ahw = adapter->ahw;
1104
1105 ret = qlcnic_api_lock(adapter);
1106 if (ret)
1107 goto err_lock;
1108
1109 id = ahw->pci_func;
1110 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1111 data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1112 QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1113 QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1114 qlcnic_api_unlock(adapter);
1115 err_lock:
1116 return ret;
1117 }
1118
qlcnic_check_vf(struct qlcnic_adapter * adapter,const struct pci_device_id * ent)1119 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1120 const struct pci_device_id *ent)
1121 {
1122 u32 op_mode, priv_level;
1123
1124 /* Determine FW API version */
1125 adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1126 QLCNIC_FW_API);
1127
1128 /* Find PCI function number */
1129 qlcnic_get_func_no(adapter);
1130
1131 /* Determine function privilege level */
1132 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1133 if (op_mode == QLC_DEV_DRV_DEFAULT)
1134 priv_level = QLCNIC_MGMT_FUNC;
1135 else
1136 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1137
1138 if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1139 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1140 dev_info(&adapter->pdev->dev,
1141 "HAL Version: %d Non Privileged function\n",
1142 adapter->ahw->fw_hal_version);
1143 adapter->nic_ops = &qlcnic_vf_ops;
1144 } else
1145 adapter->nic_ops = &qlcnic_ops;
1146 }
1147
1148 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1149 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
qlcnic_get_bar_length(u32 dev_id,ulong * bar)1150 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1151 {
1152 switch (dev_id) {
1153 case PCI_DEVICE_ID_QLOGIC_QLE824X:
1154 *bar = QLCNIC_82XX_BAR0_LENGTH;
1155 break;
1156 case PCI_DEVICE_ID_QLOGIC_QLE834X:
1157 case PCI_DEVICE_ID_QLOGIC_QLE8830:
1158 case PCI_DEVICE_ID_QLOGIC_QLE844X:
1159 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1160 case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1161 case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
1162 *bar = QLCNIC_83XX_BAR0_LENGTH;
1163 break;
1164 default:
1165 *bar = 0;
1166 }
1167 }
1168
qlcnic_setup_pci_map(struct pci_dev * pdev,struct qlcnic_hardware_context * ahw)1169 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1170 struct qlcnic_hardware_context *ahw)
1171 {
1172 u32 offset;
1173 void __iomem *mem_ptr0 = NULL;
1174 unsigned long mem_len, pci_len0 = 0, bar0_len;
1175
1176 /* remap phys address */
1177 mem_len = pci_resource_len(pdev, 0);
1178
1179 qlcnic_get_bar_length(pdev->device, &bar0_len);
1180 if (mem_len >= bar0_len) {
1181
1182 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1183 if (mem_ptr0 == NULL) {
1184 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1185 return -EIO;
1186 }
1187 pci_len0 = mem_len;
1188 } else {
1189 return -EIO;
1190 }
1191
1192 dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1193
1194 ahw->pci_base0 = mem_ptr0;
1195 ahw->pci_len0 = pci_len0;
1196 offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1197 qlcnic_get_ioaddr(ahw, offset);
1198
1199 return 0;
1200 }
1201
qlcnic_validate_subsystem_id(struct qlcnic_adapter * adapter,int index)1202 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1203 int index)
1204 {
1205 struct pci_dev *pdev = adapter->pdev;
1206 unsigned short subsystem_vendor;
1207 bool ret = true;
1208
1209 subsystem_vendor = pdev->subsystem_vendor;
1210
1211 if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1212 pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1213 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1214 qlcnic_boards[index].sub_device == pdev->subsystem_device)
1215 ret = true;
1216 else
1217 ret = false;
1218 }
1219
1220 return ret;
1221 }
1222
qlcnic_get_board_name(struct qlcnic_adapter * adapter,char * name)1223 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1224 {
1225 struct pci_dev *pdev = adapter->pdev;
1226 int i, found = 0;
1227
1228 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1229 if (qlcnic_boards[i].vendor == pdev->vendor &&
1230 qlcnic_boards[i].device == pdev->device &&
1231 qlcnic_validate_subsystem_id(adapter, i)) {
1232 found = 1;
1233 break;
1234 }
1235 }
1236
1237 if (!found)
1238 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1239 else
1240 sprintf(name, "%pM: %s" , adapter->mac_addr,
1241 qlcnic_boards[i].short_name);
1242 }
1243
1244 static void
qlcnic_check_options(struct qlcnic_adapter * adapter)1245 qlcnic_check_options(struct qlcnic_adapter *adapter)
1246 {
1247 int err;
1248 u32 fw_major, fw_minor, fw_build, prev_fw_version;
1249 struct pci_dev *pdev = adapter->pdev;
1250 struct qlcnic_hardware_context *ahw = adapter->ahw;
1251 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1252
1253 prev_fw_version = adapter->fw_version;
1254
1255 fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1256 fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1257 fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1258
1259 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1260
1261 err = qlcnic_get_board_info(adapter);
1262 if (err) {
1263 dev_err(&pdev->dev, "Error getting board config info.\n");
1264 return;
1265 }
1266 if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1267 if (fw_dump->tmpl_hdr == NULL ||
1268 adapter->fw_version > prev_fw_version) {
1269 vfree(fw_dump->tmpl_hdr);
1270 if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1271 dev_info(&pdev->dev,
1272 "Supports FW dump capability\n");
1273 }
1274 }
1275
1276 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1277 QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1278
1279 if (adapter->ahw->port_type == QLCNIC_XGBE) {
1280 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1281 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1282 adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1283 } else {
1284 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1285 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1286 }
1287
1288 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1289 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1290
1291 } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1292 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1293 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1294 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1295 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1296 }
1297
1298 adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1299
1300 adapter->num_txd = MAX_CMD_DESCRIPTORS;
1301
1302 adapter->max_rds_rings = MAX_RDS_RINGS;
1303 }
1304
1305 static int
qlcnic_initialize_nic(struct qlcnic_adapter * adapter)1306 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1307 {
1308 struct qlcnic_info nic_info;
1309 int err = 0;
1310
1311 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1312 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1313 if (err)
1314 return err;
1315
1316 adapter->ahw->physical_port = (u8)nic_info.phys_port;
1317 adapter->ahw->switch_mode = nic_info.switch_mode;
1318 adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1319 adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1320 adapter->ahw->capabilities = nic_info.capabilities;
1321
1322 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1323 u32 temp;
1324 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1325 if (err == -EIO)
1326 return err;
1327 adapter->ahw->extra_capability[0] = temp;
1328 } else {
1329 adapter->ahw->extra_capability[0] = 0;
1330 }
1331
1332 adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1333 adapter->ahw->max_mtu = nic_info.max_mtu;
1334
1335 if (adapter->ahw->capabilities & BIT_6) {
1336 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1337 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1338 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1339 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1340
1341 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1342 } else {
1343 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1344 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1345 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1346 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1347 }
1348
1349 return err;
1350 }
1351
qlcnic_set_vlan_config(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1352 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1353 struct qlcnic_esw_func_cfg *esw_cfg)
1354 {
1355 if (esw_cfg->discard_tagged)
1356 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1357 else
1358 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1359
1360 if (esw_cfg->vlan_id) {
1361 adapter->rx_pvid = esw_cfg->vlan_id;
1362 adapter->tx_pvid = esw_cfg->vlan_id;
1363 } else {
1364 adapter->rx_pvid = 0;
1365 adapter->tx_pvid = 0;
1366 }
1367 }
1368
1369 static int
qlcnic_vlan_rx_add(struct net_device * netdev,__be16 proto,u16 vid)1370 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1371 {
1372 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1373 int err;
1374
1375 if (qlcnic_sriov_vf_check(adapter)) {
1376 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1377 if (err) {
1378 netdev_err(netdev,
1379 "Cannot add VLAN filter for VLAN id %d, err=%d",
1380 vid, err);
1381 return err;
1382 }
1383 }
1384
1385 set_bit(vid, adapter->vlans);
1386 return 0;
1387 }
1388
1389 static int
qlcnic_vlan_rx_del(struct net_device * netdev,__be16 proto,u16 vid)1390 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1391 {
1392 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1393 int err;
1394
1395 if (qlcnic_sriov_vf_check(adapter)) {
1396 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1397 if (err) {
1398 netdev_err(netdev,
1399 "Cannot delete VLAN filter for VLAN id %d, err=%d",
1400 vid, err);
1401 return err;
1402 }
1403 }
1404
1405 qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1406 clear_bit(vid, adapter->vlans);
1407 return 0;
1408 }
1409
qlcnic_set_eswitch_port_features(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1410 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1411 struct qlcnic_esw_func_cfg *esw_cfg)
1412 {
1413 adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1414 QLCNIC_PROMISC_DISABLED);
1415
1416 if (esw_cfg->mac_anti_spoof)
1417 adapter->flags |= QLCNIC_MACSPOOF;
1418
1419 if (!esw_cfg->mac_override)
1420 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1421
1422 if (!esw_cfg->promisc_mode)
1423 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1424 }
1425
qlcnic_set_eswitch_port_config(struct qlcnic_adapter * adapter)1426 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1427 {
1428 struct qlcnic_esw_func_cfg esw_cfg;
1429
1430 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1431 return 0;
1432
1433 esw_cfg.pci_func = adapter->ahw->pci_func;
1434 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1435 return -EIO;
1436 qlcnic_set_vlan_config(adapter, &esw_cfg);
1437 qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1438 qlcnic_set_netdev_features(adapter, &esw_cfg);
1439
1440 return 0;
1441 }
1442
qlcnic_set_netdev_features(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1443 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1444 struct qlcnic_esw_func_cfg *esw_cfg)
1445 {
1446 struct net_device *netdev = adapter->netdev;
1447
1448 if (qlcnic_83xx_check(adapter))
1449 return;
1450
1451 adapter->offload_flags = esw_cfg->offload_flags;
1452 adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1453 netdev_update_features(netdev);
1454 adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1455 }
1456
1457 static int
qlcnic_check_eswitch_mode(struct qlcnic_adapter * adapter)1458 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1459 {
1460 u32 op_mode, priv_level;
1461 int err = 0;
1462
1463 err = qlcnic_initialize_nic(adapter);
1464 if (err)
1465 return err;
1466
1467 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1468 return 0;
1469
1470 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1471 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1472
1473 if (op_mode == QLC_DEV_DRV_DEFAULT)
1474 priv_level = QLCNIC_MGMT_FUNC;
1475 else
1476 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1477
1478 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1479 if (priv_level == QLCNIC_MGMT_FUNC) {
1480 adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1481 err = qlcnic_init_pci_info(adapter);
1482 if (err)
1483 return err;
1484 /* Set privilege level for other functions */
1485 qlcnic_set_function_modes(adapter);
1486 dev_info(&adapter->pdev->dev,
1487 "HAL Version: %d, Management function\n",
1488 adapter->ahw->fw_hal_version);
1489 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1490 adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1491 dev_info(&adapter->pdev->dev,
1492 "HAL Version: %d, Privileged function\n",
1493 adapter->ahw->fw_hal_version);
1494 }
1495 } else {
1496 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1497 }
1498
1499 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1500
1501 return err;
1502 }
1503
qlcnic_set_default_offload_settings(struct qlcnic_adapter * adapter)1504 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1505 {
1506 struct qlcnic_esw_func_cfg esw_cfg;
1507 struct qlcnic_npar_info *npar;
1508 u8 i;
1509
1510 if (adapter->need_fw_reset)
1511 return 0;
1512
1513 for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1514 if (!adapter->npars[i].eswitch_status)
1515 continue;
1516
1517 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1518 esw_cfg.pci_func = adapter->npars[i].pci_func;
1519 esw_cfg.mac_override = BIT_0;
1520 esw_cfg.promisc_mode = BIT_0;
1521 if (qlcnic_82xx_check(adapter)) {
1522 esw_cfg.offload_flags = BIT_0;
1523 if (QLCNIC_IS_TSO_CAPABLE(adapter))
1524 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1525 }
1526 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1527 return -EIO;
1528 npar = &adapter->npars[i];
1529 npar->pvid = esw_cfg.vlan_id;
1530 npar->mac_override = esw_cfg.mac_override;
1531 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1532 npar->discard_tagged = esw_cfg.discard_tagged;
1533 npar->promisc_mode = esw_cfg.promisc_mode;
1534 npar->offload_flags = esw_cfg.offload_flags;
1535 }
1536
1537 return 0;
1538 }
1539
1540
1541 static int
qlcnic_reset_eswitch_config(struct qlcnic_adapter * adapter,struct qlcnic_npar_info * npar,int pci_func)1542 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1543 struct qlcnic_npar_info *npar, int pci_func)
1544 {
1545 struct qlcnic_esw_func_cfg esw_cfg;
1546 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1547 esw_cfg.pci_func = pci_func;
1548 esw_cfg.vlan_id = npar->pvid;
1549 esw_cfg.mac_override = npar->mac_override;
1550 esw_cfg.discard_tagged = npar->discard_tagged;
1551 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1552 esw_cfg.offload_flags = npar->offload_flags;
1553 esw_cfg.promisc_mode = npar->promisc_mode;
1554 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1555 return -EIO;
1556
1557 esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1558 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1559 return -EIO;
1560
1561 return 0;
1562 }
1563
qlcnic_reset_npar_config(struct qlcnic_adapter * adapter)1564 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1565 {
1566 int i, err;
1567 struct qlcnic_npar_info *npar;
1568 struct qlcnic_info nic_info;
1569 u8 pci_func;
1570
1571 if (qlcnic_82xx_check(adapter))
1572 if (!adapter->need_fw_reset)
1573 return 0;
1574
1575 /* Set the NPAR config data after FW reset */
1576 for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1577 npar = &adapter->npars[i];
1578 pci_func = npar->pci_func;
1579 if (!adapter->npars[i].eswitch_status)
1580 continue;
1581
1582 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1583 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1584 if (err)
1585 return err;
1586 nic_info.min_tx_bw = npar->min_bw;
1587 nic_info.max_tx_bw = npar->max_bw;
1588 err = qlcnic_set_nic_info(adapter, &nic_info);
1589 if (err)
1590 return err;
1591
1592 if (npar->enable_pm) {
1593 err = qlcnic_config_port_mirroring(adapter,
1594 npar->dest_npar, 1,
1595 pci_func);
1596 if (err)
1597 return err;
1598 }
1599 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1600 if (err)
1601 return err;
1602 }
1603 return 0;
1604 }
1605
qlcnic_check_npar_opertional(struct qlcnic_adapter * adapter)1606 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1607 {
1608 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1609 u32 npar_state;
1610
1611 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1612 return 0;
1613
1614 npar_state = QLC_SHARED_REG_RD32(adapter,
1615 QLCNIC_CRB_DEV_NPAR_STATE);
1616 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1617 msleep(1000);
1618 npar_state = QLC_SHARED_REG_RD32(adapter,
1619 QLCNIC_CRB_DEV_NPAR_STATE);
1620 }
1621 if (!npar_opt_timeo) {
1622 dev_err(&adapter->pdev->dev,
1623 "Waiting for NPAR state to operational timeout\n");
1624 return -EIO;
1625 }
1626 return 0;
1627 }
1628
1629 static int
qlcnic_set_mgmt_operations(struct qlcnic_adapter * adapter)1630 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1631 {
1632 int err;
1633
1634 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1635 adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1636 return 0;
1637
1638 err = qlcnic_set_default_offload_settings(adapter);
1639 if (err)
1640 return err;
1641
1642 err = qlcnic_reset_npar_config(adapter);
1643 if (err)
1644 return err;
1645
1646 qlcnic_dev_set_npar_ready(adapter);
1647
1648 return err;
1649 }
1650
qlcnic_82xx_start_firmware(struct qlcnic_adapter * adapter)1651 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1652 {
1653 int err;
1654
1655 err = qlcnic_can_start_firmware(adapter);
1656 if (err < 0)
1657 return err;
1658 else if (!err)
1659 goto check_fw_status;
1660
1661 if (qlcnic_load_fw_file)
1662 qlcnic_request_firmware(adapter);
1663 else {
1664 err = qlcnic_check_flash_fw_ver(adapter);
1665 if (err)
1666 goto err_out;
1667
1668 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1669 }
1670
1671 err = qlcnic_need_fw_reset(adapter);
1672 if (err == 0)
1673 goto check_fw_status;
1674
1675 err = qlcnic_pinit_from_rom(adapter);
1676 if (err)
1677 goto err_out;
1678
1679 err = qlcnic_load_firmware(adapter);
1680 if (err)
1681 goto err_out;
1682
1683 qlcnic_release_firmware(adapter);
1684 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1685
1686 check_fw_status:
1687 err = qlcnic_check_fw_status(adapter);
1688 if (err)
1689 goto err_out;
1690
1691 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1692 qlcnic_idc_debug_info(adapter, 1);
1693 err = qlcnic_check_eswitch_mode(adapter);
1694 if (err) {
1695 dev_err(&adapter->pdev->dev,
1696 "Memory allocation failed for eswitch\n");
1697 goto err_out;
1698 }
1699 err = qlcnic_set_mgmt_operations(adapter);
1700 if (err)
1701 goto err_out;
1702
1703 qlcnic_check_options(adapter);
1704 adapter->need_fw_reset = 0;
1705
1706 qlcnic_release_firmware(adapter);
1707 return 0;
1708
1709 err_out:
1710 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1711 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1712
1713 qlcnic_release_firmware(adapter);
1714 return err;
1715 }
1716
1717 static int
qlcnic_request_irq(struct qlcnic_adapter * adapter)1718 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1719 {
1720 irq_handler_t handler;
1721 struct qlcnic_host_sds_ring *sds_ring;
1722 struct qlcnic_host_tx_ring *tx_ring;
1723 int err, ring, num_sds_rings;
1724
1725 unsigned long flags = 0;
1726 struct net_device *netdev = adapter->netdev;
1727 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1728
1729 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1730 if (qlcnic_82xx_check(adapter))
1731 handler = qlcnic_tmp_intr;
1732 else
1733 handler = qlcnic_83xx_tmp_intr;
1734 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1735 flags |= IRQF_SHARED;
1736
1737 } else {
1738 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1739 handler = qlcnic_msix_intr;
1740 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1741 handler = qlcnic_msi_intr;
1742 else {
1743 flags |= IRQF_SHARED;
1744 if (qlcnic_82xx_check(adapter))
1745 handler = qlcnic_intr;
1746 else
1747 handler = qlcnic_83xx_intr;
1748 }
1749 }
1750 adapter->irq = netdev->irq;
1751
1752 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1753 if (qlcnic_82xx_check(adapter) ||
1754 (qlcnic_83xx_check(adapter) &&
1755 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1756 num_sds_rings = adapter->drv_sds_rings;
1757 for (ring = 0; ring < num_sds_rings; ring++) {
1758 sds_ring = &recv_ctx->sds_rings[ring];
1759 if (qlcnic_82xx_check(adapter) &&
1760 !qlcnic_check_multi_tx(adapter) &&
1761 (ring == (num_sds_rings - 1))) {
1762 if (!(adapter->flags &
1763 QLCNIC_MSIX_ENABLED))
1764 snprintf(sds_ring->name,
1765 sizeof(sds_ring->name),
1766 "qlcnic");
1767 else
1768 snprintf(sds_ring->name,
1769 sizeof(sds_ring->name),
1770 "%s-tx-0-rx-%d",
1771 netdev->name, ring);
1772 } else {
1773 snprintf(sds_ring->name,
1774 sizeof(sds_ring->name),
1775 "%s-rx-%d",
1776 netdev->name, ring);
1777 }
1778 err = request_irq(sds_ring->irq, handler, flags,
1779 sds_ring->name, sds_ring);
1780 if (err)
1781 return err;
1782 }
1783 }
1784 if ((qlcnic_82xx_check(adapter) &&
1785 qlcnic_check_multi_tx(adapter)) ||
1786 (qlcnic_83xx_check(adapter) &&
1787 (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1788 !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1789 handler = qlcnic_msix_tx_intr;
1790 for (ring = 0; ring < adapter->drv_tx_rings;
1791 ring++) {
1792 tx_ring = &adapter->tx_ring[ring];
1793 snprintf(tx_ring->name, sizeof(tx_ring->name),
1794 "%s-tx-%d", netdev->name, ring);
1795 err = request_irq(tx_ring->irq, handler, flags,
1796 tx_ring->name, tx_ring);
1797 if (err)
1798 return err;
1799 }
1800 }
1801 }
1802 return 0;
1803 }
1804
1805 static void
qlcnic_free_irq(struct qlcnic_adapter * adapter)1806 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1807 {
1808 int ring;
1809 struct qlcnic_host_sds_ring *sds_ring;
1810 struct qlcnic_host_tx_ring *tx_ring;
1811
1812 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1813
1814 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1815 if (qlcnic_82xx_check(adapter) ||
1816 (qlcnic_83xx_check(adapter) &&
1817 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1818 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1819 sds_ring = &recv_ctx->sds_rings[ring];
1820 free_irq(sds_ring->irq, sds_ring);
1821 }
1822 }
1823 if ((qlcnic_83xx_check(adapter) &&
1824 !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1825 (qlcnic_82xx_check(adapter) &&
1826 qlcnic_check_multi_tx(adapter))) {
1827 for (ring = 0; ring < adapter->drv_tx_rings;
1828 ring++) {
1829 tx_ring = &adapter->tx_ring[ring];
1830 if (tx_ring->irq)
1831 free_irq(tx_ring->irq, tx_ring);
1832 }
1833 }
1834 }
1835 }
1836
qlcnic_get_lro_mss_capability(struct qlcnic_adapter * adapter)1837 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1838 {
1839 u32 capab = 0;
1840
1841 if (qlcnic_82xx_check(adapter)) {
1842 if (adapter->ahw->extra_capability[0] &
1843 QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1844 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1845 } else {
1846 capab = adapter->ahw->capabilities;
1847 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1848 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1849 }
1850 }
1851
qlcnic_config_def_intr_coalesce(struct qlcnic_adapter * adapter)1852 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1853 {
1854 struct qlcnic_hardware_context *ahw = adapter->ahw;
1855 int err;
1856
1857 /* Initialize interrupt coalesce parameters */
1858 ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1859
1860 if (qlcnic_83xx_check(adapter)) {
1861 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1862 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1863 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1864 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1865 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1866
1867 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1868 } else {
1869 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1870 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1871 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1872
1873 err = qlcnic_82xx_set_rx_coalesce(adapter);
1874 }
1875
1876 return err;
1877 }
1878
__qlcnic_up(struct qlcnic_adapter * adapter,struct net_device * netdev)1879 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1880 {
1881 int ring;
1882 struct qlcnic_host_rds_ring *rds_ring;
1883
1884 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1885 return -EIO;
1886
1887 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1888 return 0;
1889
1890 if (qlcnic_set_eswitch_port_config(adapter))
1891 return -EIO;
1892
1893 qlcnic_get_lro_mss_capability(adapter);
1894
1895 if (qlcnic_fw_create_ctx(adapter))
1896 return -EIO;
1897
1898 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1899 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1900 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1901 }
1902
1903 qlcnic_set_multi(netdev);
1904 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1905
1906 adapter->ahw->linkup = 0;
1907
1908 if (adapter->drv_sds_rings > 1)
1909 qlcnic_config_rss(adapter, 1);
1910
1911 qlcnic_config_def_intr_coalesce(adapter);
1912
1913 if (netdev->features & NETIF_F_LRO)
1914 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1915
1916 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1917 qlcnic_napi_enable(adapter);
1918
1919 qlcnic_linkevent_request(adapter, 1);
1920
1921 adapter->ahw->reset_context = 0;
1922 netif_tx_start_all_queues(netdev);
1923 return 0;
1924 }
1925
qlcnic_up(struct qlcnic_adapter * adapter,struct net_device * netdev)1926 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1927 {
1928 int err = 0;
1929
1930 rtnl_lock();
1931 if (netif_running(netdev))
1932 err = __qlcnic_up(adapter, netdev);
1933 rtnl_unlock();
1934
1935 return err;
1936 }
1937
__qlcnic_down(struct qlcnic_adapter * adapter,struct net_device * netdev)1938 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1939 {
1940 int ring;
1941
1942 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1943 return;
1944
1945 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1946 return;
1947
1948 smp_mb();
1949 netif_carrier_off(netdev);
1950 adapter->ahw->linkup = 0;
1951 netif_tx_disable(netdev);
1952
1953 qlcnic_free_mac_list(adapter);
1954
1955 if (adapter->fhash.fnum)
1956 qlcnic_delete_lb_filters(adapter);
1957
1958 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1959 if (qlcnic_sriov_vf_check(adapter))
1960 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1961
1962 qlcnic_napi_disable(adapter);
1963
1964 qlcnic_fw_destroy_ctx(adapter);
1965 adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1966
1967 qlcnic_reset_rx_buffers_list(adapter);
1968
1969 for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1970 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1971 }
1972
1973 /* Usage: During suspend and firmware recovery module */
1974
qlcnic_down(struct qlcnic_adapter * adapter,struct net_device * netdev)1975 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1976 {
1977 rtnl_lock();
1978 if (netif_running(netdev))
1979 __qlcnic_down(adapter, netdev);
1980 rtnl_unlock();
1981
1982 }
1983
1984 int
qlcnic_attach(struct qlcnic_adapter * adapter)1985 qlcnic_attach(struct qlcnic_adapter *adapter)
1986 {
1987 struct net_device *netdev = adapter->netdev;
1988 struct pci_dev *pdev = adapter->pdev;
1989 int err;
1990
1991 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1992 return 0;
1993
1994 err = qlcnic_napi_add(adapter, netdev);
1995 if (err)
1996 return err;
1997
1998 err = qlcnic_alloc_sw_resources(adapter);
1999 if (err) {
2000 dev_err(&pdev->dev, "Error in setting sw resources\n");
2001 goto err_out_napi_del;
2002 }
2003
2004 err = qlcnic_alloc_hw_resources(adapter);
2005 if (err) {
2006 dev_err(&pdev->dev, "Error in setting hw resources\n");
2007 goto err_out_free_sw;
2008 }
2009
2010 err = qlcnic_request_irq(adapter);
2011 if (err) {
2012 dev_err(&pdev->dev, "failed to setup interrupt\n");
2013 goto err_out_free_hw;
2014 }
2015
2016 qlcnic_create_sysfs_entries(adapter);
2017
2018 if (qlcnic_encap_rx_offload(adapter))
2019 udp_tunnel_get_rx_info(netdev);
2020
2021 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
2022 return 0;
2023
2024 err_out_free_hw:
2025 qlcnic_free_hw_resources(adapter);
2026 err_out_free_sw:
2027 qlcnic_free_sw_resources(adapter);
2028 err_out_napi_del:
2029 qlcnic_napi_del(adapter);
2030 return err;
2031 }
2032
qlcnic_detach(struct qlcnic_adapter * adapter)2033 void qlcnic_detach(struct qlcnic_adapter *adapter)
2034 {
2035 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2036 return;
2037
2038 qlcnic_remove_sysfs_entries(adapter);
2039
2040 qlcnic_free_hw_resources(adapter);
2041 qlcnic_release_rx_buffers(adapter);
2042 qlcnic_free_irq(adapter);
2043 qlcnic_napi_del(adapter);
2044 qlcnic_free_sw_resources(adapter);
2045
2046 adapter->is_up = 0;
2047 }
2048
qlcnic_diag_free_res(struct net_device * netdev,int drv_sds_rings)2049 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2050 {
2051 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2052 struct qlcnic_host_sds_ring *sds_ring;
2053 int drv_tx_rings = adapter->drv_tx_rings;
2054 int ring;
2055
2056 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2057 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2058 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2059 sds_ring = &adapter->recv_ctx->sds_rings[ring];
2060 qlcnic_disable_sds_intr(adapter, sds_ring);
2061 }
2062 }
2063
2064 qlcnic_fw_destroy_ctx(adapter);
2065
2066 qlcnic_detach(adapter);
2067
2068 adapter->ahw->diag_test = 0;
2069 adapter->drv_sds_rings = drv_sds_rings;
2070 adapter->drv_tx_rings = drv_tx_rings;
2071
2072 if (qlcnic_attach(adapter))
2073 goto out;
2074
2075 if (netif_running(netdev))
2076 __qlcnic_up(adapter, netdev);
2077 out:
2078 netif_device_attach(netdev);
2079 }
2080
qlcnic_alloc_adapter_resources(struct qlcnic_adapter * adapter)2081 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2082 {
2083 struct qlcnic_hardware_context *ahw = adapter->ahw;
2084 int err = 0;
2085
2086 adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2087 GFP_KERNEL);
2088 if (!adapter->recv_ctx) {
2089 err = -ENOMEM;
2090 goto err_out;
2091 }
2092
2093 if (qlcnic_83xx_check(adapter)) {
2094 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2095 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
2096 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
2097 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2098 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2099 } else {
2100 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
2101 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2102 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2103 }
2104
2105 /* clear stats */
2106 memset(&adapter->stats, 0, sizeof(adapter->stats));
2107 err_out:
2108 return err;
2109 }
2110
qlcnic_free_adapter_resources(struct qlcnic_adapter * adapter)2111 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2112 {
2113 struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
2114
2115 kfree(adapter->recv_ctx);
2116 adapter->recv_ctx = NULL;
2117
2118 if (fw_dump->tmpl_hdr) {
2119 vfree(fw_dump->tmpl_hdr);
2120 fw_dump->tmpl_hdr = NULL;
2121 }
2122
2123 if (fw_dump->dma_buffer) {
2124 dma_free_coherent(&adapter->pdev->dev, QLC_PEX_DMA_READ_SIZE,
2125 fw_dump->dma_buffer, fw_dump->phys_addr);
2126 fw_dump->dma_buffer = NULL;
2127 }
2128
2129 kfree(adapter->ahw->reset.buff);
2130 adapter->ahw->fw_dump.tmpl_hdr = NULL;
2131 }
2132
qlcnic_diag_alloc_res(struct net_device * netdev,int test)2133 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2134 {
2135 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2136 struct qlcnic_host_sds_ring *sds_ring;
2137 struct qlcnic_host_rds_ring *rds_ring;
2138 int ring;
2139 int ret;
2140
2141 netif_device_detach(netdev);
2142
2143 if (netif_running(netdev))
2144 __qlcnic_down(adapter, netdev);
2145
2146 qlcnic_detach(adapter);
2147
2148 adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2149 adapter->ahw->diag_test = test;
2150 adapter->ahw->linkup = 0;
2151
2152 ret = qlcnic_attach(adapter);
2153 if (ret) {
2154 netif_device_attach(netdev);
2155 return ret;
2156 }
2157
2158 ret = qlcnic_fw_create_ctx(adapter);
2159 if (ret) {
2160 qlcnic_detach(adapter);
2161 netif_device_attach(netdev);
2162 return ret;
2163 }
2164
2165 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2166 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2167 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2168 }
2169
2170 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2171 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2172 sds_ring = &adapter->recv_ctx->sds_rings[ring];
2173 qlcnic_enable_sds_intr(adapter, sds_ring);
2174 }
2175 }
2176
2177 if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2178 adapter->ahw->loopback_state = 0;
2179 qlcnic_linkevent_request(adapter, 1);
2180 }
2181
2182 set_bit(__QLCNIC_DEV_UP, &adapter->state);
2183
2184 return 0;
2185 }
2186
2187 /* Reset context in hardware only */
2188 static int
qlcnic_reset_hw_context(struct qlcnic_adapter * adapter)2189 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2190 {
2191 struct net_device *netdev = adapter->netdev;
2192
2193 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2194 return -EBUSY;
2195
2196 netif_device_detach(netdev);
2197
2198 qlcnic_down(adapter, netdev);
2199
2200 qlcnic_up(adapter, netdev);
2201
2202 netif_device_attach(netdev);
2203
2204 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2205 netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2206 return 0;
2207 }
2208
2209 int
qlcnic_reset_context(struct qlcnic_adapter * adapter)2210 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2211 {
2212 int err = 0;
2213 struct net_device *netdev = adapter->netdev;
2214
2215 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2216 return -EBUSY;
2217
2218 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2219
2220 netif_device_detach(netdev);
2221
2222 if (netif_running(netdev))
2223 __qlcnic_down(adapter, netdev);
2224
2225 qlcnic_detach(adapter);
2226
2227 if (netif_running(netdev)) {
2228 err = qlcnic_attach(adapter);
2229 if (!err) {
2230 __qlcnic_up(adapter, netdev);
2231 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2232 }
2233 }
2234
2235 netif_device_attach(netdev);
2236 }
2237
2238 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2239 return err;
2240 }
2241
qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter * adapter)2242 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2243 {
2244 struct qlcnic_hardware_context *ahw = adapter->ahw;
2245 u16 act_pci_fn = ahw->total_nic_func;
2246 u16 count;
2247
2248 ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2249 if (act_pci_fn <= 2)
2250 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2251 act_pci_fn;
2252 else
2253 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2254 act_pci_fn;
2255 ahw->max_uc_count = count;
2256 }
2257
qlcnic_set_real_num_queues(struct qlcnic_adapter * adapter,u8 tx_queues,u8 rx_queues)2258 static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
2259 u8 tx_queues, u8 rx_queues)
2260 {
2261 struct net_device *netdev = adapter->netdev;
2262 int err = 0;
2263
2264 if (tx_queues) {
2265 err = netif_set_real_num_tx_queues(netdev, tx_queues);
2266 if (err) {
2267 netdev_err(netdev, "failed to set %d Tx queues\n",
2268 tx_queues);
2269 return err;
2270 }
2271 }
2272
2273 if (rx_queues) {
2274 err = netif_set_real_num_rx_queues(netdev, rx_queues);
2275 if (err)
2276 netdev_err(netdev, "failed to set %d Rx queues\n",
2277 rx_queues);
2278 }
2279
2280 return err;
2281 }
2282
2283 int
qlcnic_setup_netdev(struct qlcnic_adapter * adapter,struct net_device * netdev,int pci_using_dac)2284 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2285 int pci_using_dac)
2286 {
2287 int err;
2288 struct pci_dev *pdev = adapter->pdev;
2289
2290 adapter->rx_csum = 1;
2291 adapter->ahw->mc_enabled = 0;
2292 qlcnic_set_mac_filter_count(adapter);
2293
2294 netdev->netdev_ops = &qlcnic_netdev_ops;
2295 netdev->watchdog_timeo = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2296
2297 qlcnic_change_mtu(netdev, netdev->mtu);
2298
2299 netdev->ethtool_ops = (qlcnic_sriov_vf_check(adapter)) ?
2300 &qlcnic_sriov_vf_ethtool_ops : &qlcnic_ethtool_ops;
2301
2302 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2303 NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2304 NETIF_F_HW_VLAN_CTAG_RX);
2305 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2306 NETIF_F_IPV6_CSUM);
2307
2308 if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2309 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2310 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2311 }
2312
2313 if (pci_using_dac) {
2314 netdev->features |= NETIF_F_HIGHDMA;
2315 netdev->vlan_features |= NETIF_F_HIGHDMA;
2316 }
2317
2318 if (qlcnic_vlan_tx_check(adapter))
2319 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2320
2321 if (qlcnic_sriov_vf_check(adapter))
2322 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2323
2324 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2325 netdev->features |= NETIF_F_LRO;
2326
2327 if (qlcnic_encap_tx_offload(adapter)) {
2328 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2329
2330 /* encapsulation Tx offload supported by Adapter */
2331 netdev->hw_enc_features = NETIF_F_IP_CSUM |
2332 NETIF_F_GSO_UDP_TUNNEL |
2333 NETIF_F_TSO |
2334 NETIF_F_TSO6;
2335 }
2336
2337 if (qlcnic_encap_rx_offload(adapter))
2338 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2339
2340 netdev->hw_features = netdev->features;
2341 netdev->priv_flags |= IFF_UNICAST_FLT;
2342 netdev->irq = adapter->msix_entries[0].vector;
2343
2344 /* MTU range: 68 - 9600 */
2345 netdev->min_mtu = P3P_MIN_MTU;
2346 netdev->max_mtu = P3P_MAX_MTU;
2347
2348 err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings,
2349 adapter->drv_sds_rings);
2350 if (err)
2351 return err;
2352
2353 qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2354
2355 err = register_netdev(netdev);
2356 if (err) {
2357 dev_err(&pdev->dev, "failed to register net device\n");
2358 return err;
2359 }
2360
2361 return 0;
2362 }
2363
qlcnic_set_dma_mask(struct pci_dev * pdev,int * pci_using_dac)2364 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2365 {
2366 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2367 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2368 *pci_using_dac = 1;
2369 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2370 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2371 *pci_using_dac = 0;
2372 else {
2373 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2374 return -EIO;
2375 }
2376
2377 return 0;
2378 }
2379
qlcnic_free_tx_rings(struct qlcnic_adapter * adapter)2380 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2381 {
2382 int ring;
2383 struct qlcnic_host_tx_ring *tx_ring;
2384
2385 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2386 tx_ring = &adapter->tx_ring[ring];
2387 if (tx_ring) {
2388 vfree(tx_ring->cmd_buf_arr);
2389 tx_ring->cmd_buf_arr = NULL;
2390 }
2391 }
2392 kfree(adapter->tx_ring);
2393 }
2394
qlcnic_alloc_tx_rings(struct qlcnic_adapter * adapter,struct net_device * netdev)2395 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2396 struct net_device *netdev)
2397 {
2398 int ring, vector, index;
2399 struct qlcnic_host_tx_ring *tx_ring;
2400 struct qlcnic_cmd_buffer *cmd_buf_arr;
2401
2402 tx_ring = kcalloc(adapter->drv_tx_rings,
2403 sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2404 if (tx_ring == NULL)
2405 return -ENOMEM;
2406
2407 adapter->tx_ring = tx_ring;
2408
2409 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2410 tx_ring = &adapter->tx_ring[ring];
2411 tx_ring->num_desc = adapter->num_txd;
2412 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2413 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2414 if (cmd_buf_arr == NULL) {
2415 qlcnic_free_tx_rings(adapter);
2416 return -ENOMEM;
2417 }
2418 tx_ring->cmd_buf_arr = cmd_buf_arr;
2419 spin_lock_init(&tx_ring->tx_clean_lock);
2420 }
2421
2422 if (qlcnic_83xx_check(adapter) ||
2423 (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2424 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2425 tx_ring = &adapter->tx_ring[ring];
2426 tx_ring->adapter = adapter;
2427 if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2428 index = adapter->drv_sds_rings + ring;
2429 vector = adapter->msix_entries[index].vector;
2430 tx_ring->irq = vector;
2431 }
2432 }
2433 }
2434
2435 return 0;
2436 }
2437
qlcnic_set_drv_version(struct qlcnic_adapter * adapter)2438 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2439 {
2440 struct qlcnic_hardware_context *ahw = adapter->ahw;
2441 u32 fw_cmd = 0;
2442
2443 if (qlcnic_82xx_check(adapter))
2444 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2445 else if (qlcnic_83xx_check(adapter))
2446 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2447
2448 if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2449 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2450 }
2451
2452 /* Reset firmware API lock */
qlcnic_reset_api_lock(struct qlcnic_adapter * adapter)2453 static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2454 {
2455 qlcnic_api_lock(adapter);
2456 qlcnic_api_unlock(adapter);
2457 }
2458
2459
2460 static int
qlcnic_probe(struct pci_dev * pdev,const struct pci_device_id * ent)2461 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2462 {
2463 struct net_device *netdev = NULL;
2464 struct qlcnic_adapter *adapter = NULL;
2465 struct qlcnic_hardware_context *ahw;
2466 int err, pci_using_dac = -1;
2467 char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2468
2469 err = pci_enable_device(pdev);
2470 if (err)
2471 return err;
2472
2473 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2474 err = -ENODEV;
2475 goto err_out_disable_pdev;
2476 }
2477
2478 err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2479 if (err)
2480 goto err_out_disable_pdev;
2481
2482 err = pci_request_regions(pdev, qlcnic_driver_name);
2483 if (err)
2484 goto err_out_disable_pdev;
2485
2486 pci_set_master(pdev);
2487 pci_enable_pcie_error_reporting(pdev);
2488
2489 ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2490 if (!ahw) {
2491 err = -ENOMEM;
2492 goto err_out_free_res;
2493 }
2494
2495 switch (ent->device) {
2496 case PCI_DEVICE_ID_QLOGIC_QLE824X:
2497 ahw->hw_ops = &qlcnic_hw_ops;
2498 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2499 break;
2500 case PCI_DEVICE_ID_QLOGIC_QLE834X:
2501 case PCI_DEVICE_ID_QLOGIC_QLE8830:
2502 case PCI_DEVICE_ID_QLOGIC_QLE844X:
2503 qlcnic_83xx_register_map(ahw);
2504 break;
2505 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2506 case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
2507 case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2508 qlcnic_sriov_vf_register_map(ahw);
2509 break;
2510 default:
2511 goto err_out_free_hw_res;
2512 }
2513
2514 err = qlcnic_setup_pci_map(pdev, ahw);
2515 if (err)
2516 goto err_out_free_hw_res;
2517
2518 netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2519 QLCNIC_MAX_TX_RINGS);
2520 if (!netdev) {
2521 err = -ENOMEM;
2522 goto err_out_iounmap;
2523 }
2524
2525 SET_NETDEV_DEV(netdev, &pdev->dev);
2526
2527 adapter = netdev_priv(netdev);
2528 adapter->netdev = netdev;
2529 adapter->pdev = pdev;
2530 adapter->ahw = ahw;
2531
2532 adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2533 if (adapter->qlcnic_wq == NULL) {
2534 err = -ENOMEM;
2535 dev_err(&pdev->dev, "Failed to create workqueue\n");
2536 goto err_out_free_netdev;
2537 }
2538
2539 err = qlcnic_alloc_adapter_resources(adapter);
2540 if (err)
2541 goto err_out_free_wq;
2542
2543 adapter->dev_rst_time = jiffies;
2544 ahw->revision_id = pdev->revision;
2545 ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2546 if (qlcnic_mac_learn == FDB_MAC_LEARN)
2547 adapter->fdb_mac_learn = true;
2548 else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2549 adapter->drv_mac_learn = true;
2550
2551 rwlock_init(&adapter->ahw->crb_lock);
2552 mutex_init(&adapter->ahw->mem_lock);
2553
2554 INIT_LIST_HEAD(&adapter->mac_list);
2555
2556 qlcnic_register_dcb(adapter);
2557
2558 if (qlcnic_82xx_check(adapter)) {
2559 qlcnic_check_vf(adapter, ent);
2560 adapter->portnum = adapter->ahw->pci_func;
2561 qlcnic_reset_api_lock(adapter);
2562 err = qlcnic_start_firmware(adapter);
2563 if (err) {
2564 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2565 "\t\tIf reboot doesn't help, try flashing the card\n");
2566 goto err_out_maintenance_mode;
2567 }
2568
2569 /* compute and set default and max tx/sds rings */
2570 if (adapter->ahw->msix_supported) {
2571 if (qlcnic_check_multi_tx_capability(adapter) == 1)
2572 qlcnic_set_tx_ring_count(adapter,
2573 QLCNIC_SINGLE_RING);
2574 else
2575 qlcnic_set_tx_ring_count(adapter,
2576 QLCNIC_DEF_TX_RINGS);
2577 qlcnic_set_sds_ring_count(adapter,
2578 QLCNIC_DEF_SDS_RINGS);
2579 } else {
2580 qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2581 qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2582 }
2583
2584 err = qlcnic_setup_idc_param(adapter);
2585 if (err)
2586 goto err_out_free_hw;
2587
2588 adapter->flags |= QLCNIC_NEED_FLR;
2589
2590 } else if (qlcnic_83xx_check(adapter)) {
2591 qlcnic_83xx_check_vf(adapter, ent);
2592 adapter->portnum = adapter->ahw->pci_func;
2593 err = qlcnic_83xx_init(adapter, pci_using_dac);
2594 if (err) {
2595 switch (err) {
2596 case -ENOTRECOVERABLE:
2597 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2598 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2599 goto err_out_free_hw;
2600 case -ENOMEM:
2601 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2602 goto err_out_free_hw;
2603 case -EOPNOTSUPP:
2604 dev_err(&pdev->dev, "Adapter initialization failed\n");
2605 goto err_out_free_hw;
2606 default:
2607 dev_err(&pdev->dev, "Adapter initialization failed. Driver will load in maintenance mode to recover the adapter using the application\n");
2608 goto err_out_maintenance_mode;
2609 }
2610 }
2611
2612 if (qlcnic_sriov_vf_check(adapter))
2613 return 0;
2614 } else {
2615 dev_err(&pdev->dev,
2616 "%s: failed. Please Reboot\n", __func__);
2617 err = -ENODEV;
2618 goto err_out_free_hw;
2619 }
2620
2621 if (qlcnic_read_mac_addr(adapter))
2622 dev_warn(&pdev->dev, "failed to read mac addr\n");
2623
2624 qlcnic_read_phys_port_id(adapter);
2625
2626 if (adapter->portnum == 0) {
2627 qlcnic_get_board_name(adapter, board_name);
2628
2629 pr_info("%s: %s Board Chip rev 0x%x\n",
2630 module_name(THIS_MODULE),
2631 board_name, adapter->ahw->revision_id);
2632 }
2633
2634 if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2635 !!qlcnic_use_msi)
2636 dev_warn(&pdev->dev,
2637 "Device does not support MSI interrupts\n");
2638
2639 if (qlcnic_82xx_check(adapter)) {
2640 qlcnic_dcb_enable(adapter->dcb);
2641 qlcnic_dcb_get_info(adapter->dcb);
2642 err = qlcnic_setup_intr(adapter);
2643
2644 if (err) {
2645 dev_err(&pdev->dev, "Failed to setup interrupt\n");
2646 goto err_out_disable_msi;
2647 }
2648 }
2649
2650 err = qlcnic_get_act_pci_func(adapter);
2651 if (err)
2652 goto err_out_disable_mbx_intr;
2653
2654 if (adapter->portnum == 0)
2655 qlcnic_set_drv_version(adapter);
2656
2657 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2658 if (err)
2659 goto err_out_disable_mbx_intr;
2660
2661 pci_set_drvdata(pdev, adapter);
2662
2663 if (qlcnic_82xx_check(adapter))
2664 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2665 FW_POLL_DELAY);
2666
2667 switch (adapter->ahw->port_type) {
2668 case QLCNIC_GBE:
2669 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2670 adapter->netdev->name);
2671 break;
2672 case QLCNIC_XGBE:
2673 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2674 adapter->netdev->name);
2675 break;
2676 }
2677
2678 if (adapter->drv_mac_learn)
2679 qlcnic_alloc_lb_filters_mem(adapter);
2680
2681 qlcnic_add_sysfs(adapter);
2682 qlcnic_register_hwmon_dev(adapter);
2683 return 0;
2684
2685 err_out_disable_mbx_intr:
2686 if (qlcnic_83xx_check(adapter))
2687 qlcnic_83xx_free_mbx_intr(adapter);
2688
2689 err_out_disable_msi:
2690 qlcnic_teardown_intr(adapter);
2691 qlcnic_cancel_idc_work(adapter);
2692 qlcnic_clr_all_drv_state(adapter, 0);
2693
2694 err_out_free_hw:
2695 qlcnic_free_adapter_resources(adapter);
2696
2697 err_out_free_wq:
2698 destroy_workqueue(adapter->qlcnic_wq);
2699
2700 err_out_free_netdev:
2701 free_netdev(netdev);
2702
2703 err_out_iounmap:
2704 qlcnic_cleanup_pci_map(ahw);
2705
2706 err_out_free_hw_res:
2707 kfree(ahw);
2708
2709 err_out_free_res:
2710 pci_release_regions(pdev);
2711
2712 err_out_disable_pdev:
2713 pci_disable_device(pdev);
2714 return err;
2715
2716 err_out_maintenance_mode:
2717 set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2718 netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2719 netdev->ethtool_ops = &qlcnic_ethtool_failed_ops;
2720 ahw->port_type = QLCNIC_XGBE;
2721
2722 if (qlcnic_83xx_check(adapter))
2723 adapter->tgt_status_reg = NULL;
2724 else
2725 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2726
2727 err = register_netdev(netdev);
2728
2729 if (err) {
2730 dev_err(&pdev->dev, "Failed to register net device\n");
2731 qlcnic_clr_all_drv_state(adapter, 0);
2732 goto err_out_free_hw;
2733 }
2734
2735 pci_set_drvdata(pdev, adapter);
2736 qlcnic_add_sysfs(adapter);
2737
2738 return 0;
2739 }
2740
qlcnic_remove(struct pci_dev * pdev)2741 static void qlcnic_remove(struct pci_dev *pdev)
2742 {
2743 struct qlcnic_adapter *adapter;
2744 struct net_device *netdev;
2745 struct qlcnic_hardware_context *ahw;
2746
2747 adapter = pci_get_drvdata(pdev);
2748 if (adapter == NULL)
2749 return;
2750
2751 netdev = adapter->netdev;
2752
2753 qlcnic_cancel_idc_work(adapter);
2754 qlcnic_sriov_pf_disable(adapter);
2755 ahw = adapter->ahw;
2756
2757 unregister_netdev(netdev);
2758 qlcnic_sriov_cleanup(adapter);
2759
2760 if (qlcnic_83xx_check(adapter)) {
2761 qlcnic_83xx_initialize_nic(adapter, 0);
2762 cancel_delayed_work_sync(&adapter->idc_aen_work);
2763 qlcnic_83xx_free_mbx_intr(adapter);
2764 qlcnic_83xx_detach_mailbox_work(adapter);
2765 qlcnic_83xx_free_mailbox(ahw->mailbox);
2766 kfree(ahw->fw_info);
2767 }
2768
2769 qlcnic_dcb_free(adapter->dcb);
2770 qlcnic_detach(adapter);
2771 kfree(adapter->npars);
2772 kfree(adapter->eswitch);
2773
2774 if (qlcnic_82xx_check(adapter))
2775 qlcnic_clr_all_drv_state(adapter, 0);
2776
2777 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2778
2779 qlcnic_free_lb_filters_mem(adapter);
2780
2781 qlcnic_teardown_intr(adapter);
2782
2783 qlcnic_remove_sysfs(adapter);
2784
2785 qlcnic_unregister_hwmon_dev(adapter);
2786
2787 qlcnic_cleanup_pci_map(adapter->ahw);
2788
2789 qlcnic_release_firmware(adapter);
2790
2791 pci_disable_pcie_error_reporting(pdev);
2792 pci_release_regions(pdev);
2793 pci_disable_device(pdev);
2794
2795 if (adapter->qlcnic_wq) {
2796 destroy_workqueue(adapter->qlcnic_wq);
2797 adapter->qlcnic_wq = NULL;
2798 }
2799
2800 qlcnic_free_adapter_resources(adapter);
2801 kfree(ahw);
2802 free_netdev(netdev);
2803 }
2804
qlcnic_shutdown(struct pci_dev * pdev)2805 static void qlcnic_shutdown(struct pci_dev *pdev)
2806 {
2807 if (__qlcnic_shutdown(pdev))
2808 return;
2809
2810 pci_disable_device(pdev);
2811 }
2812
2813 #ifdef CONFIG_PM
qlcnic_suspend(struct pci_dev * pdev,pm_message_t state)2814 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2815 {
2816 int retval;
2817
2818 retval = __qlcnic_shutdown(pdev);
2819 if (retval)
2820 return retval;
2821
2822 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2823 return 0;
2824 }
2825
qlcnic_resume(struct pci_dev * pdev)2826 static int qlcnic_resume(struct pci_dev *pdev)
2827 {
2828 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2829 int err;
2830
2831 err = pci_enable_device(pdev);
2832 if (err)
2833 return err;
2834
2835 pci_set_power_state(pdev, PCI_D0);
2836 pci_set_master(pdev);
2837 pci_restore_state(pdev);
2838
2839 return __qlcnic_resume(adapter);
2840 }
2841 #endif
2842
qlcnic_open(struct net_device * netdev)2843 static int qlcnic_open(struct net_device *netdev)
2844 {
2845 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2846 int err;
2847
2848 if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2849 netdev_err(netdev, "%s: Device is in non-operational state\n",
2850 __func__);
2851
2852 return -EIO;
2853 }
2854
2855 netif_carrier_off(netdev);
2856
2857 err = qlcnic_attach(adapter);
2858 if (err)
2859 return err;
2860
2861 err = __qlcnic_up(adapter, netdev);
2862 if (err)
2863 qlcnic_detach(adapter);
2864
2865 return err;
2866 }
2867
2868 /*
2869 * qlcnic_close - Disables a network interface entry point
2870 */
qlcnic_close(struct net_device * netdev)2871 static int qlcnic_close(struct net_device *netdev)
2872 {
2873 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2874
2875 __qlcnic_down(adapter, netdev);
2876
2877 return 0;
2878 }
2879
2880 #define QLCNIC_VF_LB_BUCKET_SIZE 1
2881
qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter * adapter)2882 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2883 {
2884 void *head;
2885 int i;
2886 struct net_device *netdev = adapter->netdev;
2887 u32 filter_size = 0;
2888 u16 act_pci_func = 0;
2889
2890 if (adapter->fhash.fmax && adapter->fhash.fhead)
2891 return;
2892
2893 act_pci_func = adapter->ahw->total_nic_func;
2894 spin_lock_init(&adapter->mac_learn_lock);
2895 spin_lock_init(&adapter->rx_mac_learn_lock);
2896
2897 if (qlcnic_sriov_vf_check(adapter)) {
2898 filter_size = QLCNIC_83XX_SRIOV_VF_MAX_MAC - 1;
2899 adapter->fhash.fbucket_size = QLCNIC_VF_LB_BUCKET_SIZE;
2900 } else if (qlcnic_82xx_check(adapter)) {
2901 filter_size = QLCNIC_LB_MAX_FILTERS;
2902 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2903 } else {
2904 filter_size = QLC_83XX_LB_MAX_FILTERS;
2905 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2906 }
2907
2908 head = kcalloc(adapter->fhash.fbucket_size,
2909 sizeof(struct hlist_head), GFP_ATOMIC);
2910
2911 if (!head)
2912 return;
2913
2914 adapter->fhash.fmax = (filter_size / act_pci_func);
2915 adapter->fhash.fhead = head;
2916
2917 netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2918 act_pci_func, adapter->fhash.fmax);
2919
2920 for (i = 0; i < adapter->fhash.fbucket_size; i++)
2921 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2922
2923 adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2924
2925 head = kcalloc(adapter->rx_fhash.fbucket_size,
2926 sizeof(struct hlist_head), GFP_ATOMIC);
2927
2928 if (!head)
2929 return;
2930
2931 adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2932 adapter->rx_fhash.fhead = head;
2933
2934 for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2935 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2936 }
2937
qlcnic_free_lb_filters_mem(struct qlcnic_adapter * adapter)2938 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2939 {
2940 if (adapter->fhash.fmax)
2941 kfree(adapter->fhash.fhead);
2942
2943 adapter->fhash.fhead = NULL;
2944 adapter->fhash.fmax = 0;
2945
2946 if (adapter->rx_fhash.fmax)
2947 kfree(adapter->rx_fhash.fhead);
2948
2949 adapter->rx_fhash.fmax = 0;
2950 adapter->rx_fhash.fhead = NULL;
2951 }
2952
qlcnic_check_temp(struct qlcnic_adapter * adapter)2953 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2954 {
2955 struct net_device *netdev = adapter->netdev;
2956 u32 temp_state, temp_val, temp = 0;
2957 int rv = 0;
2958
2959 if (qlcnic_83xx_check(adapter))
2960 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2961
2962 if (qlcnic_82xx_check(adapter))
2963 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2964
2965 temp_state = qlcnic_get_temp_state(temp);
2966 temp_val = qlcnic_get_temp_val(temp);
2967
2968 if (temp_state == QLCNIC_TEMP_PANIC) {
2969 dev_err(&netdev->dev,
2970 "Device temperature %d degrees C exceeds"
2971 " maximum allowed. Hardware has been shut down.\n",
2972 temp_val);
2973 rv = 1;
2974 } else if (temp_state == QLCNIC_TEMP_WARN) {
2975 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2976 dev_err(&netdev->dev,
2977 "Device temperature %d degrees C "
2978 "exceeds operating range."
2979 " Immediate action needed.\n",
2980 temp_val);
2981 }
2982 } else {
2983 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2984 dev_info(&netdev->dev,
2985 "Device temperature is now %d degrees C"
2986 " in normal range.\n", temp_val);
2987 }
2988 }
2989 adapter->ahw->temp = temp_state;
2990 return rv;
2991 }
2992
dump_tx_ring_desc(struct qlcnic_host_tx_ring * tx_ring)2993 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2994 {
2995 int i;
2996 struct cmd_desc_type0 *tx_desc_info;
2997
2998 for (i = 0; i < tx_ring->num_desc; i++) {
2999 tx_desc_info = &tx_ring->desc_head[i];
3000 pr_info("TX Desc: %d\n", i);
3001 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
3002 &tx_ring->desc_head[i],
3003 sizeof(struct cmd_desc_type0), true);
3004 }
3005 }
3006
qlcnic_dump_rings(struct qlcnic_adapter * adapter)3007 static void qlcnic_dump_rings(struct qlcnic_adapter *adapter)
3008 {
3009 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
3010 struct net_device *netdev = adapter->netdev;
3011 struct qlcnic_host_rds_ring *rds_ring;
3012 struct qlcnic_host_sds_ring *sds_ring;
3013 struct qlcnic_host_tx_ring *tx_ring;
3014 int ring;
3015
3016 if (!netdev || !netif_running(netdev))
3017 return;
3018
3019 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
3020 rds_ring = &recv_ctx->rds_rings[ring];
3021 if (!rds_ring)
3022 continue;
3023 netdev_info(netdev,
3024 "rds_ring=%d crb_rcv_producer=%d producer=%u num_desc=%u\n",
3025 ring, readl(rds_ring->crb_rcv_producer),
3026 rds_ring->producer, rds_ring->num_desc);
3027 }
3028
3029 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3030 sds_ring = &(recv_ctx->sds_rings[ring]);
3031 if (!sds_ring)
3032 continue;
3033 netdev_info(netdev,
3034 "sds_ring=%d crb_sts_consumer=%d consumer=%u crb_intr_mask=%d num_desc=%u\n",
3035 ring, readl(sds_ring->crb_sts_consumer),
3036 sds_ring->consumer, readl(sds_ring->crb_intr_mask),
3037 sds_ring->num_desc);
3038 }
3039
3040 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3041 tx_ring = &adapter->tx_ring[ring];
3042 if (!tx_ring)
3043 continue;
3044 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
3045 ring, tx_ring->ctx_id);
3046 netdev_info(netdev,
3047 "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
3048 tx_ring->tx_stats.xmit_finished,
3049 tx_ring->tx_stats.xmit_called,
3050 tx_ring->tx_stats.xmit_on,
3051 tx_ring->tx_stats.xmit_off);
3052
3053 if (tx_ring->crb_intr_mask)
3054 netdev_info(netdev, "crb_intr_mask=%d\n",
3055 readl(tx_ring->crb_intr_mask));
3056
3057 netdev_info(netdev,
3058 "hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
3059 readl(tx_ring->crb_cmd_producer),
3060 tx_ring->producer, tx_ring->sw_consumer,
3061 le32_to_cpu(*(tx_ring->hw_consumer)));
3062
3063 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
3064 tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
3065
3066 if (netif_msg_tx_err(adapter->ahw))
3067 dump_tx_ring_desc(tx_ring);
3068 }
3069
3070 }
3071
qlcnic_tx_timeout(struct net_device * netdev)3072 static void qlcnic_tx_timeout(struct net_device *netdev)
3073 {
3074 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3075
3076 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3077 return;
3078
3079 qlcnic_dump_rings(adapter);
3080
3081 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS ||
3082 netif_msg_tx_err(adapter->ahw)) {
3083 netdev_err(netdev, "Tx timeout, reset the adapter.\n");
3084 if (qlcnic_82xx_check(adapter))
3085 adapter->need_fw_reset = 1;
3086 else if (qlcnic_83xx_check(adapter))
3087 qlcnic_83xx_idc_request_reset(adapter,
3088 QLCNIC_FORCE_FW_DUMP_KEY);
3089 } else {
3090 netdev_err(netdev, "Tx timeout, reset adapter context.\n");
3091 adapter->ahw->reset_context = 1;
3092 }
3093 }
3094
qlcnic_get_stats(struct net_device * netdev)3095 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3096 {
3097 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3098 struct net_device_stats *stats = &netdev->stats;
3099
3100 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3101 qlcnic_update_stats(adapter);
3102
3103 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3104 stats->tx_packets = adapter->stats.xmitfinished;
3105 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3106 stats->tx_bytes = adapter->stats.txbytes;
3107 stats->rx_dropped = adapter->stats.rxdropped;
3108 stats->tx_dropped = adapter->stats.txdropped;
3109
3110 return stats;
3111 }
3112
qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter * adapter)3113 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3114 {
3115 u32 status;
3116
3117 status = readl(adapter->isr_int_vec);
3118
3119 if (!(status & adapter->ahw->int_vec_bit))
3120 return IRQ_NONE;
3121
3122 /* check interrupt state machine, to be sure */
3123 status = readl(adapter->crb_int_state_reg);
3124 if (!ISR_LEGACY_INT_TRIGGERED(status))
3125 return IRQ_NONE;
3126
3127 writel(0xffffffff, adapter->tgt_status_reg);
3128 /* read twice to ensure write is flushed */
3129 readl(adapter->isr_int_vec);
3130 readl(adapter->isr_int_vec);
3131
3132 return IRQ_HANDLED;
3133 }
3134
qlcnic_tmp_intr(int irq,void * data)3135 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3136 {
3137 struct qlcnic_host_sds_ring *sds_ring = data;
3138 struct qlcnic_adapter *adapter = sds_ring->adapter;
3139
3140 if (adapter->flags & QLCNIC_MSIX_ENABLED)
3141 goto done;
3142 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3143 writel(0xffffffff, adapter->tgt_status_reg);
3144 goto done;
3145 }
3146
3147 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3148 return IRQ_NONE;
3149
3150 done:
3151 adapter->ahw->diag_cnt++;
3152 qlcnic_enable_sds_intr(adapter, sds_ring);
3153 return IRQ_HANDLED;
3154 }
3155
qlcnic_intr(int irq,void * data)3156 static irqreturn_t qlcnic_intr(int irq, void *data)
3157 {
3158 struct qlcnic_host_sds_ring *sds_ring = data;
3159 struct qlcnic_adapter *adapter = sds_ring->adapter;
3160
3161 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3162 return IRQ_NONE;
3163
3164 napi_schedule(&sds_ring->napi);
3165
3166 return IRQ_HANDLED;
3167 }
3168
qlcnic_msi_intr(int irq,void * data)3169 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3170 {
3171 struct qlcnic_host_sds_ring *sds_ring = data;
3172 struct qlcnic_adapter *adapter = sds_ring->adapter;
3173
3174 /* clear interrupt */
3175 writel(0xffffffff, adapter->tgt_status_reg);
3176
3177 napi_schedule(&sds_ring->napi);
3178 return IRQ_HANDLED;
3179 }
3180
qlcnic_msix_intr(int irq,void * data)3181 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3182 {
3183 struct qlcnic_host_sds_ring *sds_ring = data;
3184
3185 napi_schedule(&sds_ring->napi);
3186 return IRQ_HANDLED;
3187 }
3188
qlcnic_msix_tx_intr(int irq,void * data)3189 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3190 {
3191 struct qlcnic_host_tx_ring *tx_ring = data;
3192
3193 napi_schedule(&tx_ring->napi);
3194 return IRQ_HANDLED;
3195 }
3196
3197 static void
qlcnic_idc_debug_info(struct qlcnic_adapter * adapter,u8 encoding)3198 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3199 {
3200 u32 val;
3201
3202 val = adapter->portnum & 0xf;
3203 val |= encoding << 7;
3204 val |= (jiffies - adapter->dev_rst_time) << 8;
3205
3206 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3207 adapter->dev_rst_time = jiffies;
3208 }
3209
3210 static int
qlcnic_set_drv_state(struct qlcnic_adapter * adapter,u8 state)3211 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3212 {
3213 u32 val;
3214
3215 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3216 state != QLCNIC_DEV_NEED_QUISCENT);
3217
3218 if (qlcnic_api_lock(adapter))
3219 return -EIO;
3220
3221 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3222
3223 if (state == QLCNIC_DEV_NEED_RESET)
3224 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3225 else if (state == QLCNIC_DEV_NEED_QUISCENT)
3226 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3227
3228 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3229
3230 qlcnic_api_unlock(adapter);
3231
3232 return 0;
3233 }
3234
3235 static int
qlcnic_clr_drv_state(struct qlcnic_adapter * adapter)3236 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3237 {
3238 u32 val;
3239
3240 if (qlcnic_api_lock(adapter))
3241 return -EBUSY;
3242
3243 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3244 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3245 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3246
3247 qlcnic_api_unlock(adapter);
3248
3249 return 0;
3250 }
3251
qlcnic_clr_all_drv_state(struct qlcnic_adapter * adapter,u8 failed)3252 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3253 {
3254 u32 val;
3255
3256 if (qlcnic_api_lock(adapter))
3257 goto err;
3258
3259 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3260 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3261 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3262
3263 if (failed) {
3264 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3265 QLCNIC_DEV_FAILED);
3266 dev_info(&adapter->pdev->dev,
3267 "Device state set to Failed. Please Reboot\n");
3268 } else if (!(val & 0x11111111))
3269 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3270 QLCNIC_DEV_COLD);
3271
3272 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3273 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3274 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3275
3276 qlcnic_api_unlock(adapter);
3277 err:
3278 adapter->fw_fail_cnt = 0;
3279 adapter->flags &= ~QLCNIC_FW_HANG;
3280 clear_bit(__QLCNIC_START_FW, &adapter->state);
3281 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3282 }
3283
3284 /* Grab api lock, before checking state */
3285 static int
qlcnic_check_drv_state(struct qlcnic_adapter * adapter)3286 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3287 {
3288 int act, state, active_mask;
3289 struct qlcnic_hardware_context *ahw = adapter->ahw;
3290
3291 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3292 act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3293
3294 if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3295 active_mask = (~(1 << (ahw->pci_func * 4)));
3296 act = act & active_mask;
3297 }
3298
3299 if (((state & 0x11111111) == (act & 0x11111111)) ||
3300 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3301 return 0;
3302 else
3303 return 1;
3304 }
3305
qlcnic_check_idc_ver(struct qlcnic_adapter * adapter)3306 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3307 {
3308 u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3309
3310 if (val != QLCNIC_DRV_IDC_VER) {
3311 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3312 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3313 }
3314
3315 return 0;
3316 }
3317
3318 static int
qlcnic_can_start_firmware(struct qlcnic_adapter * adapter)3319 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3320 {
3321 u32 val, prev_state;
3322 u8 dev_init_timeo = adapter->dev_init_timeo;
3323 u8 portnum = adapter->portnum;
3324 u8 ret;
3325
3326 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3327 return 1;
3328
3329 if (qlcnic_api_lock(adapter))
3330 return -1;
3331
3332 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3333 if (!(val & (1 << (portnum * 4)))) {
3334 QLC_DEV_SET_REF_CNT(val, portnum);
3335 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3336 }
3337
3338 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3339 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3340
3341 switch (prev_state) {
3342 case QLCNIC_DEV_COLD:
3343 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3344 QLCNIC_DEV_INITIALIZING);
3345 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3346 QLCNIC_DRV_IDC_VER);
3347 qlcnic_idc_debug_info(adapter, 0);
3348 qlcnic_api_unlock(adapter);
3349 return 1;
3350
3351 case QLCNIC_DEV_READY:
3352 ret = qlcnic_check_idc_ver(adapter);
3353 qlcnic_api_unlock(adapter);
3354 return ret;
3355
3356 case QLCNIC_DEV_NEED_RESET:
3357 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3358 QLC_DEV_SET_RST_RDY(val, portnum);
3359 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3360 break;
3361
3362 case QLCNIC_DEV_NEED_QUISCENT:
3363 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3364 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3365 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3366 break;
3367
3368 case QLCNIC_DEV_FAILED:
3369 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3370 qlcnic_api_unlock(adapter);
3371 return -1;
3372
3373 case QLCNIC_DEV_INITIALIZING:
3374 case QLCNIC_DEV_QUISCENT:
3375 break;
3376 }
3377
3378 qlcnic_api_unlock(adapter);
3379
3380 do {
3381 msleep(1000);
3382 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3383
3384 if (prev_state == QLCNIC_DEV_QUISCENT)
3385 continue;
3386 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3387
3388 if (!dev_init_timeo) {
3389 dev_err(&adapter->pdev->dev,
3390 "Waiting for device to initialize timeout\n");
3391 return -1;
3392 }
3393
3394 if (qlcnic_api_lock(adapter))
3395 return -1;
3396
3397 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3398 QLC_DEV_CLR_RST_QSCNT(val, portnum);
3399 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3400
3401 ret = qlcnic_check_idc_ver(adapter);
3402 qlcnic_api_unlock(adapter);
3403
3404 return ret;
3405 }
3406
3407 static void
qlcnic_fwinit_work(struct work_struct * work)3408 qlcnic_fwinit_work(struct work_struct *work)
3409 {
3410 struct qlcnic_adapter *adapter = container_of(work,
3411 struct qlcnic_adapter, fw_work.work);
3412 u32 dev_state = 0xf;
3413 u32 val;
3414
3415 if (qlcnic_api_lock(adapter))
3416 goto err_ret;
3417
3418 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3419 if (dev_state == QLCNIC_DEV_QUISCENT ||
3420 dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3421 qlcnic_api_unlock(adapter);
3422 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3423 FW_POLL_DELAY * 2);
3424 return;
3425 }
3426
3427 if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3428 qlcnic_api_unlock(adapter);
3429 goto wait_npar;
3430 }
3431
3432 if (dev_state == QLCNIC_DEV_INITIALIZING ||
3433 dev_state == QLCNIC_DEV_READY) {
3434 dev_info(&adapter->pdev->dev, "Detected state change from "
3435 "DEV_NEED_RESET, skipping ack check\n");
3436 goto skip_ack_check;
3437 }
3438
3439 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3440 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3441 adapter->reset_ack_timeo);
3442 goto skip_ack_check;
3443 }
3444
3445 if (!qlcnic_check_drv_state(adapter)) {
3446 skip_ack_check:
3447 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3448
3449 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3450 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3451 QLCNIC_DEV_INITIALIZING);
3452 set_bit(__QLCNIC_START_FW, &adapter->state);
3453 QLCDB(adapter, DRV, "Restarting fw\n");
3454 qlcnic_idc_debug_info(adapter, 0);
3455 val = QLC_SHARED_REG_RD32(adapter,
3456 QLCNIC_CRB_DRV_STATE);
3457 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3458 QLC_SHARED_REG_WR32(adapter,
3459 QLCNIC_CRB_DRV_STATE, val);
3460 }
3461
3462 qlcnic_api_unlock(adapter);
3463
3464 rtnl_lock();
3465 if (qlcnic_check_fw_dump_state(adapter) &&
3466 (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3467 QLCDB(adapter, DRV, "Take FW dump\n");
3468 qlcnic_dump_fw(adapter);
3469 adapter->flags |= QLCNIC_FW_HANG;
3470 }
3471 rtnl_unlock();
3472
3473 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3474 if (!adapter->nic_ops->start_firmware(adapter)) {
3475 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3476 adapter->fw_wait_cnt = 0;
3477 return;
3478 }
3479 goto err_ret;
3480 }
3481
3482 qlcnic_api_unlock(adapter);
3483
3484 wait_npar:
3485 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3486 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3487
3488 switch (dev_state) {
3489 case QLCNIC_DEV_READY:
3490 if (!qlcnic_start_firmware(adapter)) {
3491 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3492 adapter->fw_wait_cnt = 0;
3493 return;
3494 }
3495 case QLCNIC_DEV_FAILED:
3496 break;
3497 default:
3498 qlcnic_schedule_work(adapter,
3499 qlcnic_fwinit_work, FW_POLL_DELAY);
3500 return;
3501 }
3502
3503 err_ret:
3504 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3505 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3506 netif_device_attach(adapter->netdev);
3507 qlcnic_clr_all_drv_state(adapter, 0);
3508 }
3509
3510 static void
qlcnic_detach_work(struct work_struct * work)3511 qlcnic_detach_work(struct work_struct *work)
3512 {
3513 struct qlcnic_adapter *adapter = container_of(work,
3514 struct qlcnic_adapter, fw_work.work);
3515 struct net_device *netdev = adapter->netdev;
3516 u32 status;
3517
3518 netif_device_detach(netdev);
3519
3520 /* Dont grab rtnl lock during Quiscent mode */
3521 if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3522 if (netif_running(netdev))
3523 __qlcnic_down(adapter, netdev);
3524 } else
3525 qlcnic_down(adapter, netdev);
3526
3527 status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3528
3529 if (status & QLCNIC_RCODE_FATAL_ERROR) {
3530 dev_err(&adapter->pdev->dev,
3531 "Detaching the device: peg halt status1=0x%x\n",
3532 status);
3533
3534 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3535 dev_err(&adapter->pdev->dev,
3536 "On board active cooling fan failed. "
3537 "Device has been halted.\n");
3538 dev_err(&adapter->pdev->dev,
3539 "Replace the adapter.\n");
3540 }
3541
3542 goto err_ret;
3543 }
3544
3545 if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3546 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3547 adapter->ahw->temp);
3548 goto err_ret;
3549 }
3550
3551 /* Dont ack if this instance is the reset owner */
3552 if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3553 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3554 dev_err(&adapter->pdev->dev,
3555 "Failed to set driver state,"
3556 "detaching the device.\n");
3557 goto err_ret;
3558 }
3559 }
3560
3561 adapter->fw_wait_cnt = 0;
3562
3563 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3564
3565 return;
3566
3567 err_ret:
3568 netif_device_attach(netdev);
3569 qlcnic_clr_all_drv_state(adapter, 1);
3570 }
3571
3572 /*Transit NPAR state to NON Operational */
3573 static void
qlcnic_set_npar_non_operational(struct qlcnic_adapter * adapter)3574 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3575 {
3576 u32 state;
3577
3578 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3579 if (state == QLCNIC_DEV_NPAR_NON_OPER)
3580 return;
3581
3582 if (qlcnic_api_lock(adapter))
3583 return;
3584 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3585 QLCNIC_DEV_NPAR_NON_OPER);
3586 qlcnic_api_unlock(adapter);
3587 }
3588
qlcnic_82xx_dev_request_reset(struct qlcnic_adapter * adapter,u32 key)3589 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3590 u32 key)
3591 {
3592 u32 state, xg_val = 0, gb_val = 0;
3593
3594 qlcnic_xg_set_xg0_mask(xg_val);
3595 qlcnic_xg_set_xg1_mask(xg_val);
3596 QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3597 qlcnic_gb_set_gb0_mask(gb_val);
3598 qlcnic_gb_set_gb1_mask(gb_val);
3599 qlcnic_gb_set_gb2_mask(gb_val);
3600 qlcnic_gb_set_gb3_mask(gb_val);
3601 QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3602 dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3603 " on all ports\n");
3604 adapter->need_fw_reset = 1;
3605
3606 if (qlcnic_api_lock(adapter))
3607 return;
3608
3609 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3610
3611 if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3612 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3613 __func__);
3614 qlcnic_api_unlock(adapter);
3615
3616 return;
3617 }
3618
3619 if (state == QLCNIC_DEV_READY) {
3620 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3621 QLCNIC_DEV_NEED_RESET);
3622 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3623 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3624 qlcnic_idc_debug_info(adapter, 0);
3625 }
3626
3627 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3628 QLCNIC_DEV_NPAR_NON_OPER);
3629 qlcnic_api_unlock(adapter);
3630 }
3631
3632 /* Transit to NPAR READY state from NPAR NOT READY state */
3633 static void
qlcnic_dev_set_npar_ready(struct qlcnic_adapter * adapter)3634 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3635 {
3636 if (qlcnic_api_lock(adapter))
3637 return;
3638
3639 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3640 QLCNIC_DEV_NPAR_OPER);
3641 QLCDB(adapter, DRV, "NPAR operational state set\n");
3642
3643 qlcnic_api_unlock(adapter);
3644 }
3645
qlcnic_schedule_work(struct qlcnic_adapter * adapter,work_func_t func,int delay)3646 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3647 work_func_t func, int delay)
3648 {
3649 if (test_bit(__QLCNIC_AER, &adapter->state))
3650 return;
3651
3652 INIT_DELAYED_WORK(&adapter->fw_work, func);
3653 queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3654 round_jiffies_relative(delay));
3655 }
3656
3657 static void
qlcnic_attach_work(struct work_struct * work)3658 qlcnic_attach_work(struct work_struct *work)
3659 {
3660 struct qlcnic_adapter *adapter = container_of(work,
3661 struct qlcnic_adapter, fw_work.work);
3662 struct net_device *netdev = adapter->netdev;
3663 u32 npar_state;
3664
3665 if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3666 npar_state = QLC_SHARED_REG_RD32(adapter,
3667 QLCNIC_CRB_DEV_NPAR_STATE);
3668 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3669 qlcnic_clr_all_drv_state(adapter, 0);
3670 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3671 qlcnic_schedule_work(adapter, qlcnic_attach_work,
3672 FW_POLL_DELAY);
3673 else
3674 goto attach;
3675 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3676 return;
3677 }
3678 attach:
3679 qlcnic_dcb_get_info(adapter->dcb);
3680
3681 if (netif_running(netdev)) {
3682 if (qlcnic_up(adapter, netdev))
3683 goto done;
3684
3685 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3686 }
3687
3688 done:
3689 netif_device_attach(netdev);
3690 adapter->fw_fail_cnt = 0;
3691 adapter->flags &= ~QLCNIC_FW_HANG;
3692 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3693 if (adapter->portnum == 0)
3694 qlcnic_set_drv_version(adapter);
3695
3696 if (!qlcnic_clr_drv_state(adapter))
3697 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3698 FW_POLL_DELAY);
3699 }
3700
3701 static int
qlcnic_check_health(struct qlcnic_adapter * adapter)3702 qlcnic_check_health(struct qlcnic_adapter *adapter)
3703 {
3704 struct qlcnic_hardware_context *ahw = adapter->ahw;
3705 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3706 u32 state = 0, heartbeat;
3707 u32 peg_status;
3708 int err = 0;
3709
3710 if (qlcnic_check_temp(adapter))
3711 goto detach;
3712
3713 if (adapter->need_fw_reset)
3714 qlcnic_dev_request_reset(adapter, 0);
3715
3716 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3717 if (state == QLCNIC_DEV_NEED_RESET) {
3718 qlcnic_set_npar_non_operational(adapter);
3719 adapter->need_fw_reset = 1;
3720 } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3721 goto detach;
3722
3723 heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3724 if (heartbeat != adapter->heartbeat) {
3725 adapter->heartbeat = heartbeat;
3726 adapter->fw_fail_cnt = 0;
3727 if (adapter->need_fw_reset)
3728 goto detach;
3729
3730 if (ahw->reset_context && qlcnic_auto_fw_reset)
3731 qlcnic_reset_hw_context(adapter);
3732
3733 return 0;
3734 }
3735
3736 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3737 return 0;
3738
3739 adapter->flags |= QLCNIC_FW_HANG;
3740
3741 qlcnic_dev_request_reset(adapter, 0);
3742
3743 if (qlcnic_auto_fw_reset)
3744 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3745
3746 dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3747 peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3748 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3749 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3750 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3751 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3752 "PEG_NET_4_PC: 0x%x\n",
3753 peg_status,
3754 QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3755 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3756 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3757 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3758 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3759 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3760 if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3761 dev_err(&adapter->pdev->dev,
3762 "Firmware aborted with error code 0x00006700. "
3763 "Device is being reset.\n");
3764 detach:
3765 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3766 QLCNIC_DEV_NEED_RESET;
3767
3768 if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3769 &adapter->state)) {
3770
3771 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3772 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3773 } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3774 adapter->flags & QLCNIC_FW_RESET_OWNER) {
3775 qlcnic_dump_fw(adapter);
3776 }
3777
3778 return 1;
3779 }
3780
qlcnic_fw_poll_work(struct work_struct * work)3781 void qlcnic_fw_poll_work(struct work_struct *work)
3782 {
3783 struct qlcnic_adapter *adapter = container_of(work,
3784 struct qlcnic_adapter, fw_work.work);
3785
3786 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3787 goto reschedule;
3788
3789
3790 if (qlcnic_check_health(adapter))
3791 return;
3792
3793 if (adapter->fhash.fnum)
3794 qlcnic_prune_lb_filters(adapter);
3795
3796 reschedule:
3797 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3798 }
3799
qlcnic_is_first_func(struct pci_dev * pdev)3800 static int qlcnic_is_first_func(struct pci_dev *pdev)
3801 {
3802 struct pci_dev *oth_pdev;
3803 int val = pdev->devfn;
3804
3805 while (val-- > 0) {
3806 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3807 (pdev->bus), pdev->bus->number,
3808 PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3809 if (!oth_pdev)
3810 continue;
3811
3812 if (oth_pdev->current_state != PCI_D3cold) {
3813 pci_dev_put(oth_pdev);
3814 return 0;
3815 }
3816 pci_dev_put(oth_pdev);
3817 }
3818 return 1;
3819 }
3820
qlcnic_attach_func(struct pci_dev * pdev)3821 static int qlcnic_attach_func(struct pci_dev *pdev)
3822 {
3823 int err, first_func;
3824 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3825 struct net_device *netdev = adapter->netdev;
3826
3827 pdev->error_state = pci_channel_io_normal;
3828
3829 err = pci_enable_device(pdev);
3830 if (err)
3831 return err;
3832
3833 pci_set_master(pdev);
3834 pci_restore_state(pdev);
3835
3836 first_func = qlcnic_is_first_func(pdev);
3837
3838 if (qlcnic_api_lock(adapter))
3839 return -EINVAL;
3840
3841 if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3842 adapter->need_fw_reset = 1;
3843 set_bit(__QLCNIC_START_FW, &adapter->state);
3844 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3845 QLCNIC_DEV_INITIALIZING);
3846 QLCDB(adapter, DRV, "Restarting fw\n");
3847 }
3848 qlcnic_api_unlock(adapter);
3849
3850 err = qlcnic_start_firmware(adapter);
3851 if (err)
3852 return err;
3853
3854 qlcnic_clr_drv_state(adapter);
3855 kfree(adapter->msix_entries);
3856 adapter->msix_entries = NULL;
3857 err = qlcnic_setup_intr(adapter);
3858
3859 if (err) {
3860 kfree(adapter->msix_entries);
3861 netdev_err(netdev, "failed to setup interrupt\n");
3862 return err;
3863 }
3864
3865 if (netif_running(netdev)) {
3866 err = qlcnic_attach(adapter);
3867 if (err) {
3868 qlcnic_clr_all_drv_state(adapter, 1);
3869 clear_bit(__QLCNIC_AER, &adapter->state);
3870 netif_device_attach(netdev);
3871 return err;
3872 }
3873
3874 err = qlcnic_up(adapter, netdev);
3875 if (err)
3876 goto done;
3877
3878 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3879 }
3880 done:
3881 netif_device_attach(netdev);
3882 return err;
3883 }
3884
qlcnic_82xx_io_error_detected(struct pci_dev * pdev,pci_channel_state_t state)3885 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3886 pci_channel_state_t state)
3887 {
3888 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3889 struct net_device *netdev = adapter->netdev;
3890
3891 if (state == pci_channel_io_perm_failure)
3892 return PCI_ERS_RESULT_DISCONNECT;
3893
3894 if (state == pci_channel_io_normal)
3895 return PCI_ERS_RESULT_RECOVERED;
3896
3897 set_bit(__QLCNIC_AER, &adapter->state);
3898 netif_device_detach(netdev);
3899
3900 cancel_delayed_work_sync(&adapter->fw_work);
3901
3902 if (netif_running(netdev))
3903 qlcnic_down(adapter, netdev);
3904
3905 qlcnic_detach(adapter);
3906 qlcnic_teardown_intr(adapter);
3907
3908 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3909
3910 pci_save_state(pdev);
3911 pci_disable_device(pdev);
3912
3913 return PCI_ERS_RESULT_NEED_RESET;
3914 }
3915
qlcnic_82xx_io_slot_reset(struct pci_dev * pdev)3916 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3917 {
3918 pci_ers_result_t res;
3919
3920 rtnl_lock();
3921 res = qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3922 PCI_ERS_RESULT_RECOVERED;
3923 rtnl_unlock();
3924
3925 return res;
3926 }
3927
qlcnic_82xx_io_resume(struct pci_dev * pdev)3928 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3929 {
3930 u32 state;
3931 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3932
3933 pci_cleanup_aer_uncorrect_error_status(pdev);
3934 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3935 if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3936 &adapter->state))
3937 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3938 FW_POLL_DELAY);
3939 }
3940
qlcnic_io_error_detected(struct pci_dev * pdev,pci_channel_state_t state)3941 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3942 pci_channel_state_t state)
3943 {
3944 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3945 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3946
3947 if (hw_ops->io_error_detected) {
3948 return hw_ops->io_error_detected(pdev, state);
3949 } else {
3950 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3951 return PCI_ERS_RESULT_DISCONNECT;
3952 }
3953 }
3954
qlcnic_io_slot_reset(struct pci_dev * pdev)3955 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3956 {
3957 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3958 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3959
3960 if (hw_ops->io_slot_reset) {
3961 return hw_ops->io_slot_reset(pdev);
3962 } else {
3963 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3964 return PCI_ERS_RESULT_DISCONNECT;
3965 }
3966 }
3967
qlcnic_io_resume(struct pci_dev * pdev)3968 static void qlcnic_io_resume(struct pci_dev *pdev)
3969 {
3970 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3971 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3972
3973 if (hw_ops->io_resume)
3974 hw_ops->io_resume(pdev);
3975 else
3976 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3977 }
3978
3979
3980 static int
qlcnicvf_start_firmware(struct qlcnic_adapter * adapter)3981 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3982 {
3983 int err;
3984
3985 err = qlcnic_can_start_firmware(adapter);
3986 if (err)
3987 return err;
3988
3989 err = qlcnic_check_npar_opertional(adapter);
3990 if (err)
3991 return err;
3992
3993 err = qlcnic_initialize_nic(adapter);
3994 if (err)
3995 return err;
3996
3997 qlcnic_check_options(adapter);
3998
3999 err = qlcnic_set_eswitch_port_config(adapter);
4000 if (err)
4001 return err;
4002
4003 adapter->need_fw_reset = 0;
4004
4005 return err;
4006 }
4007
qlcnic_validate_rings(struct qlcnic_adapter * adapter,__u32 ring_cnt,int queue_type)4008 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
4009 int queue_type)
4010 {
4011 struct net_device *netdev = adapter->netdev;
4012 u8 max_hw_rings = 0;
4013 char buf[8];
4014 int cur_rings;
4015
4016 if (queue_type == QLCNIC_RX_QUEUE) {
4017 max_hw_rings = adapter->max_sds_rings;
4018 cur_rings = adapter->drv_sds_rings;
4019 strcpy(buf, "SDS");
4020 } else if (queue_type == QLCNIC_TX_QUEUE) {
4021 max_hw_rings = adapter->max_tx_rings;
4022 cur_rings = adapter->drv_tx_rings;
4023 strcpy(buf, "Tx");
4024 }
4025
4026 if (!is_power_of_2(ring_cnt)) {
4027 netdev_err(netdev, "%s rings value should be a power of 2\n",
4028 buf);
4029 return -EINVAL;
4030 }
4031
4032 if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
4033 !qlcnic_check_multi_tx(adapter)) {
4034 netdev_err(netdev, "No Multi Tx queue support\n");
4035 return -EINVAL;
4036 }
4037
4038 if (ring_cnt > num_online_cpus()) {
4039 netdev_err(netdev,
4040 "%s value[%u] should not be higher than, number of online CPUs\n",
4041 buf, num_online_cpus());
4042 return -EINVAL;
4043 }
4044
4045 return 0;
4046 }
4047
qlcnic_setup_rings(struct qlcnic_adapter * adapter)4048 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
4049 {
4050 struct net_device *netdev = adapter->netdev;
4051 u8 tx_rings, rx_rings;
4052 int err;
4053
4054 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
4055 return -EBUSY;
4056
4057 tx_rings = adapter->drv_tss_rings;
4058 rx_rings = adapter->drv_rss_rings;
4059
4060 netif_device_detach(netdev);
4061
4062 err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings);
4063 if (err)
4064 goto done;
4065
4066 if (netif_running(netdev))
4067 __qlcnic_down(adapter, netdev);
4068
4069 qlcnic_detach(adapter);
4070
4071 if (qlcnic_83xx_check(adapter)) {
4072 qlcnic_83xx_free_mbx_intr(adapter);
4073 qlcnic_83xx_enable_mbx_poll(adapter);
4074 }
4075
4076 qlcnic_teardown_intr(adapter);
4077
4078 err = qlcnic_setup_intr(adapter);
4079 if (err) {
4080 kfree(adapter->msix_entries);
4081 netdev_err(netdev, "failed to setup interrupt\n");
4082 return err;
4083 }
4084
4085 /* Check if we need to update real_num_{tx|rx}_queues because
4086 * qlcnic_setup_intr() may change Tx/Rx rings size
4087 */
4088 if ((tx_rings != adapter->drv_tx_rings) ||
4089 (rx_rings != adapter->drv_sds_rings)) {
4090 err = qlcnic_set_real_num_queues(adapter,
4091 adapter->drv_tx_rings,
4092 adapter->drv_sds_rings);
4093 if (err)
4094 goto done;
4095 }
4096
4097 if (qlcnic_83xx_check(adapter)) {
4098 qlcnic_83xx_initialize_nic(adapter, 1);
4099 err = qlcnic_83xx_setup_mbx_intr(adapter);
4100 qlcnic_83xx_disable_mbx_poll(adapter);
4101 if (err) {
4102 dev_err(&adapter->pdev->dev,
4103 "failed to setup mbx interrupt\n");
4104 goto done;
4105 }
4106 }
4107
4108 if (netif_running(netdev)) {
4109 err = qlcnic_attach(adapter);
4110 if (err)
4111 goto done;
4112 err = __qlcnic_up(adapter, netdev);
4113 if (err)
4114 goto done;
4115 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4116 }
4117 done:
4118 netif_device_attach(netdev);
4119 clear_bit(__QLCNIC_RESETTING, &adapter->state);
4120 return err;
4121 }
4122
4123 #ifdef CONFIG_INET
4124
4125 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4126
4127 static void
qlcnic_config_indev_addr(struct qlcnic_adapter * adapter,struct net_device * dev,unsigned long event)4128 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4129 struct net_device *dev, unsigned long event)
4130 {
4131 struct in_device *indev;
4132
4133 indev = in_dev_get(dev);
4134 if (!indev)
4135 return;
4136
4137 for_ifa(indev) {
4138 switch (event) {
4139 case NETDEV_UP:
4140 qlcnic_config_ipaddr(adapter,
4141 ifa->ifa_address, QLCNIC_IP_UP);
4142 break;
4143 case NETDEV_DOWN:
4144 qlcnic_config_ipaddr(adapter,
4145 ifa->ifa_address, QLCNIC_IP_DOWN);
4146 break;
4147 default:
4148 break;
4149 }
4150 } endfor_ifa(indev);
4151
4152 in_dev_put(indev);
4153 }
4154
qlcnic_restore_indev_addr(struct net_device * netdev,unsigned long event)4155 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4156 {
4157 struct qlcnic_adapter *adapter = netdev_priv(netdev);
4158 struct net_device *dev;
4159 u16 vid;
4160
4161 qlcnic_config_indev_addr(adapter, netdev, event);
4162
4163 rcu_read_lock();
4164 for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4165 dev = __vlan_find_dev_deep_rcu(netdev, htons(ETH_P_8021Q), vid);
4166 if (!dev)
4167 continue;
4168 qlcnic_config_indev_addr(adapter, dev, event);
4169 }
4170 rcu_read_unlock();
4171 }
4172
qlcnic_netdev_event(struct notifier_block * this,unsigned long event,void * ptr)4173 static int qlcnic_netdev_event(struct notifier_block *this,
4174 unsigned long event, void *ptr)
4175 {
4176 struct qlcnic_adapter *adapter;
4177 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4178
4179 recheck:
4180 if (dev == NULL)
4181 goto done;
4182
4183 if (is_vlan_dev(dev)) {
4184 dev = vlan_dev_real_dev(dev);
4185 goto recheck;
4186 }
4187
4188 if (!is_qlcnic_netdev(dev))
4189 goto done;
4190
4191 adapter = netdev_priv(dev);
4192
4193 if (!adapter)
4194 goto done;
4195
4196 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4197 goto done;
4198
4199 qlcnic_config_indev_addr(adapter, dev, event);
4200 done:
4201 return NOTIFY_DONE;
4202 }
4203
4204 static int
qlcnic_inetaddr_event(struct notifier_block * this,unsigned long event,void * ptr)4205 qlcnic_inetaddr_event(struct notifier_block *this,
4206 unsigned long event, void *ptr)
4207 {
4208 struct qlcnic_adapter *adapter;
4209 struct net_device *dev;
4210
4211 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4212
4213 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4214
4215 recheck:
4216 if (dev == NULL)
4217 goto done;
4218
4219 if (is_vlan_dev(dev)) {
4220 dev = vlan_dev_real_dev(dev);
4221 goto recheck;
4222 }
4223
4224 if (!is_qlcnic_netdev(dev))
4225 goto done;
4226
4227 adapter = netdev_priv(dev);
4228
4229 if (!adapter)
4230 goto done;
4231
4232 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4233 goto done;
4234
4235 switch (event) {
4236 case NETDEV_UP:
4237 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4238
4239 break;
4240 case NETDEV_DOWN:
4241 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4242
4243 break;
4244 default:
4245 break;
4246 }
4247
4248 done:
4249 return NOTIFY_DONE;
4250 }
4251
4252 static struct notifier_block qlcnic_netdev_cb = {
4253 .notifier_call = qlcnic_netdev_event,
4254 };
4255
4256 static struct notifier_block qlcnic_inetaddr_cb = {
4257 .notifier_call = qlcnic_inetaddr_event,
4258 };
4259 #else
qlcnic_restore_indev_addr(struct net_device * dev,unsigned long event)4260 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4261 { }
4262 #endif
4263 static const struct pci_error_handlers qlcnic_err_handler = {
4264 .error_detected = qlcnic_io_error_detected,
4265 .slot_reset = qlcnic_io_slot_reset,
4266 .resume = qlcnic_io_resume,
4267 };
4268
4269 static struct pci_driver qlcnic_driver = {
4270 .name = qlcnic_driver_name,
4271 .id_table = qlcnic_pci_tbl,
4272 .probe = qlcnic_probe,
4273 .remove = qlcnic_remove,
4274 #ifdef CONFIG_PM
4275 .suspend = qlcnic_suspend,
4276 .resume = qlcnic_resume,
4277 #endif
4278 .shutdown = qlcnic_shutdown,
4279 .err_handler = &qlcnic_err_handler,
4280 #ifdef CONFIG_QLCNIC_SRIOV
4281 .sriov_configure = qlcnic_pci_sriov_configure,
4282 #endif
4283
4284 };
4285
qlcnic_init_module(void)4286 static int __init qlcnic_init_module(void)
4287 {
4288 int ret;
4289
4290 printk(KERN_INFO "%s\n", qlcnic_driver_string);
4291
4292 #ifdef CONFIG_INET
4293 register_netdevice_notifier(&qlcnic_netdev_cb);
4294 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4295 #endif
4296
4297 ret = pci_register_driver(&qlcnic_driver);
4298 if (ret) {
4299 #ifdef CONFIG_INET
4300 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4301 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4302 #endif
4303 }
4304
4305 return ret;
4306 }
4307
4308 module_init(qlcnic_init_module);
4309
qlcnic_exit_module(void)4310 static void __exit qlcnic_exit_module(void)
4311 {
4312 pci_unregister_driver(&qlcnic_driver);
4313
4314 #ifdef CONFIG_INET
4315 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4316 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4317 #endif
4318 }
4319
4320 module_exit(qlcnic_exit_module);
4321
