1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * QLogic qlcnic NIC Driver
4 * Copyright (c) 2009-2013 QLogic Corporation
5 */
6
7 #include <linux/vmalloc.h>
8 #include <linux/interrupt.h>
9 #include <linux/swab.h>
10 #include <linux/dma-mapping.h>
11 #include <linux/if_vlan.h>
12 #include <net/ip.h>
13 #include <linux/ipv6.h>
14 #include <linux/inetdevice.h>
15 #include <linux/aer.h>
16 #include <linux/log2.h>
17 #include <linux/pci.h>
18 #include <net/vxlan.h>
19
20 #include "qlcnic.h"
21 #include "qlcnic_sriov.h"
22 #include "qlcnic_hw.h"
23
24 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
25 MODULE_LICENSE("GPL");
26 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
27 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
28
29 char qlcnic_driver_name[] = "qlcnic";
30 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
31 "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
32
33 static int qlcnic_mac_learn;
34 module_param(qlcnic_mac_learn, int, 0444);
35 MODULE_PARM_DESC(qlcnic_mac_learn,
36 "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
37
38 int qlcnic_use_msi = 1;
39 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
40 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
41
42 int qlcnic_use_msi_x = 1;
43 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
44 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
45
46 int qlcnic_auto_fw_reset = 1;
47 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
48 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
49
50 int qlcnic_load_fw_file;
51 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)");
52 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
53
54 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
55 static void qlcnic_remove(struct pci_dev *pdev);
56 static int qlcnic_open(struct net_device *netdev);
57 static int qlcnic_close(struct net_device *netdev);
58 static void qlcnic_tx_timeout(struct net_device *netdev, unsigned int txqueue);
59 static void qlcnic_attach_work(struct work_struct *work);
60 static void qlcnic_fwinit_work(struct work_struct *work);
61
62 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
63 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
64
65 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
66 static irqreturn_t qlcnic_intr(int irq, void *data);
67 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
68 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
69 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
70
71 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
72 static int qlcnic_start_firmware(struct qlcnic_adapter *);
73
74 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
75 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
76 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
77 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
78 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
79
80 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *);
81 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *, u32);
82 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *);
83 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *);
84 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *);
85 static void qlcnic_82xx_io_resume(struct pci_dev *);
86 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
87 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *,
88 pci_channel_state_t);
qlcnic_vlan_tx_check(struct qlcnic_adapter * adapter)89 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
90 {
91 struct qlcnic_hardware_context *ahw = adapter->ahw;
92
93 if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
94 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
95 else
96 return 1;
97 }
98
99 /* PCI Device ID Table */
100 #define ENTRY(device) \
101 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
102 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
103
104 static const struct pci_device_id qlcnic_pci_tbl[] = {
105 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
106 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
107 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
108 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE8830),
109 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE8C30),
110 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
111 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
112 {0,}
113 };
114
115 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
116
117
qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring * tx_ring)118 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
119 {
120 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
121 }
122
123 static const u32 msi_tgt_status[8] = {
124 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
125 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
126 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
127 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
128 };
129
130 static const u32 qlcnic_reg_tbl[] = {
131 0x1B20A8, /* PEG_HALT_STAT1 */
132 0x1B20AC, /* PEG_HALT_STAT2 */
133 0x1B20B0, /* FW_HEARTBEAT */
134 0x1B2100, /* LOCK ID */
135 0x1B2128, /* FW_CAPABILITIES */
136 0x1B2138, /* drv active */
137 0x1B2140, /* dev state */
138 0x1B2144, /* drv state */
139 0x1B2148, /* drv scratch */
140 0x1B214C, /* dev partition info */
141 0x1B2174, /* drv idc ver */
142 0x1B2150, /* fw version major */
143 0x1B2154, /* fw version minor */
144 0x1B2158, /* fw version sub */
145 0x1B219C, /* npar state */
146 0x1B21FC, /* FW_IMG_VALID */
147 0x1B2250, /* CMD_PEG_STATE */
148 0x1B233C, /* RCV_PEG_STATE */
149 0x1B23B4, /* ASIC TEMP */
150 0x1B216C, /* FW api */
151 0x1B2170, /* drv op mode */
152 0x13C010, /* flash lock */
153 0x13C014, /* flash unlock */
154 };
155
156 static const struct qlcnic_board_info qlcnic_boards[] = {
157 { PCI_VENDOR_ID_QLOGIC,
158 PCI_DEVICE_ID_QLOGIC_QLE844X,
159 0x0,
160 0x0,
161 "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
162 { PCI_VENDOR_ID_QLOGIC,
163 PCI_DEVICE_ID_QLOGIC_QLE834X,
164 PCI_VENDOR_ID_QLOGIC,
165 0x24e,
166 "8300 Series Dual Port 10GbE Converged Network Adapter "
167 "(TCP/IP Networking)" },
168 { PCI_VENDOR_ID_QLOGIC,
169 PCI_DEVICE_ID_QLOGIC_QLE834X,
170 PCI_VENDOR_ID_QLOGIC,
171 0x243,
172 "8300 Series Single Port 10GbE Converged Network Adapter "
173 "(TCP/IP Networking)" },
174 { PCI_VENDOR_ID_QLOGIC,
175 PCI_DEVICE_ID_QLOGIC_QLE834X,
176 PCI_VENDOR_ID_QLOGIC,
177 0x24a,
178 "8300 Series Dual Port 10GbE Converged Network Adapter "
179 "(TCP/IP Networking)" },
180 { PCI_VENDOR_ID_QLOGIC,
181 PCI_DEVICE_ID_QLOGIC_QLE834X,
182 PCI_VENDOR_ID_QLOGIC,
183 0x246,
184 "8300 Series Dual Port 10GbE Converged Network Adapter "
185 "(TCP/IP Networking)" },
186 { PCI_VENDOR_ID_QLOGIC,
187 PCI_DEVICE_ID_QLOGIC_QLE834X,
188 PCI_VENDOR_ID_QLOGIC,
189 0x252,
190 "8300 Series Dual Port 10GbE Converged Network Adapter "
191 "(TCP/IP Networking)" },
192 { PCI_VENDOR_ID_QLOGIC,
193 PCI_DEVICE_ID_QLOGIC_QLE834X,
194 PCI_VENDOR_ID_QLOGIC,
195 0x26e,
196 "8300 Series Dual Port 10GbE Converged Network Adapter "
197 "(TCP/IP Networking)" },
198 { PCI_VENDOR_ID_QLOGIC,
199 PCI_DEVICE_ID_QLOGIC_QLE834X,
200 PCI_VENDOR_ID_QLOGIC,
201 0x260,
202 "8300 Series Dual Port 10GbE Converged Network Adapter "
203 "(TCP/IP Networking)" },
204 { PCI_VENDOR_ID_QLOGIC,
205 PCI_DEVICE_ID_QLOGIC_QLE834X,
206 PCI_VENDOR_ID_QLOGIC,
207 0x266,
208 "8300 Series Single Port 10GbE Converged Network Adapter "
209 "(TCP/IP Networking)" },
210 { PCI_VENDOR_ID_QLOGIC,
211 PCI_DEVICE_ID_QLOGIC_QLE834X,
212 PCI_VENDOR_ID_QLOGIC,
213 0x269,
214 "8300 Series Dual Port 10GbE Converged Network Adapter "
215 "(TCP/IP Networking)" },
216 { PCI_VENDOR_ID_QLOGIC,
217 PCI_DEVICE_ID_QLOGIC_QLE834X,
218 PCI_VENDOR_ID_QLOGIC,
219 0x271,
220 "8300 Series Dual Port 10GbE Converged Network Adapter "
221 "(TCP/IP Networking)" },
222 { PCI_VENDOR_ID_QLOGIC,
223 PCI_DEVICE_ID_QLOGIC_QLE834X,
224 0x0, 0x0, "8300 Series 1/10GbE Controller" },
225 { PCI_VENDOR_ID_QLOGIC,
226 PCI_DEVICE_ID_QLOGIC_QLE8830,
227 0x0,
228 0x0,
229 "8830 Series 1/10GbE Controller" },
230 { PCI_VENDOR_ID_QLOGIC,
231 PCI_DEVICE_ID_QLOGIC_QLE824X,
232 PCI_VENDOR_ID_QLOGIC,
233 0x203,
234 "8200 Series Single Port 10GbE Converged Network Adapter"
235 "(TCP/IP Networking)" },
236 { PCI_VENDOR_ID_QLOGIC,
237 PCI_DEVICE_ID_QLOGIC_QLE824X,
238 PCI_VENDOR_ID_QLOGIC,
239 0x207,
240 "8200 Series Dual Port 10GbE Converged Network Adapter"
241 "(TCP/IP Networking)" },
242 { PCI_VENDOR_ID_QLOGIC,
243 PCI_DEVICE_ID_QLOGIC_QLE824X,
244 PCI_VENDOR_ID_QLOGIC,
245 0x20b,
246 "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
247 { PCI_VENDOR_ID_QLOGIC,
248 PCI_DEVICE_ID_QLOGIC_QLE824X,
249 PCI_VENDOR_ID_QLOGIC,
250 0x20c,
251 "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
252 { PCI_VENDOR_ID_QLOGIC,
253 PCI_DEVICE_ID_QLOGIC_QLE824X,
254 PCI_VENDOR_ID_QLOGIC,
255 0x20f,
256 "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
257 { PCI_VENDOR_ID_QLOGIC,
258 PCI_DEVICE_ID_QLOGIC_QLE824X,
259 0x103c, 0x3733,
260 "NC523SFP 10Gb 2-port Server Adapter" },
261 { PCI_VENDOR_ID_QLOGIC,
262 PCI_DEVICE_ID_QLOGIC_QLE824X,
263 0x103c, 0x3346,
264 "CN1000Q Dual Port Converged Network Adapter" },
265 { PCI_VENDOR_ID_QLOGIC,
266 PCI_DEVICE_ID_QLOGIC_QLE824X,
267 PCI_VENDOR_ID_QLOGIC,
268 0x210,
269 "QME8242-k 10GbE Dual Port Mezzanine Card" },
270 { PCI_VENDOR_ID_QLOGIC,
271 PCI_DEVICE_ID_QLOGIC_QLE824X,
272 0x0, 0x0, "cLOM8214 1/10GbE Controller" },
273 };
274
275 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
276
277 static const
278 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
279
qlcnic_alloc_sds_rings(struct qlcnic_recv_context * recv_ctx,int count)280 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
281 {
282 int size = sizeof(struct qlcnic_host_sds_ring) * count;
283
284 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
285
286 return recv_ctx->sds_rings == NULL;
287 }
288
qlcnic_free_sds_rings(struct qlcnic_recv_context * recv_ctx)289 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
290 {
291 kfree(recv_ctx->sds_rings);
292 recv_ctx->sds_rings = NULL;
293 }
294
qlcnic_read_mac_addr(struct qlcnic_adapter * adapter)295 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
296 {
297 struct net_device *netdev = adapter->netdev;
298 struct pci_dev *pdev = adapter->pdev;
299 u8 mac_addr[ETH_ALEN];
300 int ret;
301
302 ret = qlcnic_get_mac_address(adapter, mac_addr,
303 adapter->ahw->pci_func);
304 if (ret)
305 return ret;
306
307 eth_hw_addr_set(netdev, mac_addr);
308 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
309
310 /* set station address */
311
312 if (!is_valid_ether_addr(netdev->dev_addr))
313 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
314 netdev->dev_addr);
315
316 return 0;
317 }
318
qlcnic_delete_adapter_mac(struct qlcnic_adapter * adapter)319 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
320 {
321 struct qlcnic_mac_vlan_list *cur;
322
323 list_for_each_entry(cur, &adapter->mac_list, list) {
324 if (ether_addr_equal_unaligned(adapter->mac_addr, cur->mac_addr)) {
325 qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
326 0, QLCNIC_MAC_DEL);
327 list_del(&cur->list);
328 kfree(cur);
329 return;
330 }
331 }
332 }
333
qlcnic_set_mac(struct net_device * netdev,void * p)334 static int qlcnic_set_mac(struct net_device *netdev, void *p)
335 {
336 struct qlcnic_adapter *adapter = netdev_priv(netdev);
337 struct sockaddr *addr = p;
338
339 if (qlcnic_sriov_vf_check(adapter))
340 return -EINVAL;
341
342 if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
343 return -EOPNOTSUPP;
344
345 if (!is_valid_ether_addr(addr->sa_data))
346 return -EINVAL;
347
348 if (ether_addr_equal_unaligned(adapter->mac_addr, addr->sa_data) &&
349 ether_addr_equal_unaligned(netdev->dev_addr, addr->sa_data))
350 return 0;
351
352 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
353 netif_device_detach(netdev);
354 qlcnic_napi_disable(adapter);
355 }
356
357 qlcnic_delete_adapter_mac(adapter);
358 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
359 eth_hw_addr_set(netdev, addr->sa_data);
360 qlcnic_set_multi(adapter->netdev);
361
362 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
363 netif_device_attach(netdev);
364 qlcnic_napi_enable(adapter);
365 }
366 return 0;
367 }
368
qlcnic_fdb_del(struct ndmsg * ndm,struct nlattr * tb[],struct net_device * netdev,const unsigned char * addr,u16 vid,struct netlink_ext_ack * extack)369 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
370 struct net_device *netdev,
371 const unsigned char *addr, u16 vid,
372 struct netlink_ext_ack *extack)
373 {
374 struct qlcnic_adapter *adapter = netdev_priv(netdev);
375 int err = -EOPNOTSUPP;
376
377 if (!adapter->fdb_mac_learn)
378 return ndo_dflt_fdb_del(ndm, tb, netdev, addr, vid);
379
380 if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
381 qlcnic_sriov_check(adapter)) {
382 if (is_unicast_ether_addr(addr)) {
383 err = dev_uc_del(netdev, addr);
384 if (!err)
385 err = qlcnic_nic_del_mac(adapter, addr);
386 } else if (is_multicast_ether_addr(addr)) {
387 err = dev_mc_del(netdev, addr);
388 } else {
389 err = -EINVAL;
390 }
391 }
392 return err;
393 }
394
qlcnic_fdb_add(struct ndmsg * ndm,struct nlattr * tb[],struct net_device * netdev,const unsigned char * addr,u16 vid,u16 flags,struct netlink_ext_ack * extack)395 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
396 struct net_device *netdev,
397 const unsigned char *addr, u16 vid, u16 flags,
398 struct netlink_ext_ack *extack)
399 {
400 struct qlcnic_adapter *adapter = netdev_priv(netdev);
401 int err = 0;
402
403 if (!adapter->fdb_mac_learn)
404 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, vid, flags);
405
406 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
407 !qlcnic_sriov_check(adapter)) {
408 pr_info("%s: FDB e-switch is not enabled\n", __func__);
409 return -EOPNOTSUPP;
410 }
411
412 if (ether_addr_equal(addr, adapter->mac_addr))
413 return err;
414
415 if (is_unicast_ether_addr(addr)) {
416 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
417 err = dev_uc_add_excl(netdev, addr);
418 else
419 err = -ENOMEM;
420 } else if (is_multicast_ether_addr(addr)) {
421 err = dev_mc_add_excl(netdev, addr);
422 } else {
423 err = -EINVAL;
424 }
425
426 return err;
427 }
428
qlcnic_fdb_dump(struct sk_buff * skb,struct netlink_callback * ncb,struct net_device * netdev,struct net_device * filter_dev,int * idx)429 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
430 struct net_device *netdev,
431 struct net_device *filter_dev, int *idx)
432 {
433 struct qlcnic_adapter *adapter = netdev_priv(netdev);
434 int err = 0;
435
436 if (!adapter->fdb_mac_learn)
437 return ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
438
439 if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
440 qlcnic_sriov_check(adapter))
441 err = ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
442
443 return err;
444 }
445
qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter * adapter)446 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
447 {
448 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
449 usleep_range(10000, 11000);
450
451 if (!adapter->fw_work.work.func)
452 return;
453
454 cancel_delayed_work_sync(&adapter->fw_work);
455 }
456
qlcnic_get_phys_port_id(struct net_device * netdev,struct netdev_phys_item_id * ppid)457 static int qlcnic_get_phys_port_id(struct net_device *netdev,
458 struct netdev_phys_item_id *ppid)
459 {
460 struct qlcnic_adapter *adapter = netdev_priv(netdev);
461 struct qlcnic_hardware_context *ahw = adapter->ahw;
462
463 if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
464 return -EOPNOTSUPP;
465
466 ppid->id_len = sizeof(ahw->phys_port_id);
467 memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
468
469 return 0;
470 }
471
qlcnic_udp_tunnel_sync(struct net_device * dev,unsigned int table)472 static int qlcnic_udp_tunnel_sync(struct net_device *dev, unsigned int table)
473 {
474 struct qlcnic_adapter *adapter = netdev_priv(dev);
475 struct udp_tunnel_info ti;
476 int err;
477
478 udp_tunnel_nic_get_port(dev, table, 0, &ti);
479 if (ti.port) {
480 err = qlcnic_set_vxlan_port(adapter, ntohs(ti.port));
481 if (err)
482 return err;
483 }
484
485 return qlcnic_set_vxlan_parsing(adapter, ntohs(ti.port));
486 }
487
488 static const struct udp_tunnel_nic_info qlcnic_udp_tunnels = {
489 .sync_table = qlcnic_udp_tunnel_sync,
490 .flags = UDP_TUNNEL_NIC_INFO_MAY_SLEEP,
491 .tables = {
492 { .n_entries = 1, .tunnel_types = UDP_TUNNEL_TYPE_VXLAN, },
493 },
494 };
495
qlcnic_features_check(struct sk_buff * skb,struct net_device * dev,netdev_features_t features)496 static netdev_features_t qlcnic_features_check(struct sk_buff *skb,
497 struct net_device *dev,
498 netdev_features_t features)
499 {
500 features = vlan_features_check(skb, features);
501 return vxlan_features_check(skb, features);
502 }
503
504 static const struct net_device_ops qlcnic_netdev_ops = {
505 .ndo_open = qlcnic_open,
506 .ndo_stop = qlcnic_close,
507 .ndo_start_xmit = qlcnic_xmit_frame,
508 .ndo_get_stats = qlcnic_get_stats,
509 .ndo_validate_addr = eth_validate_addr,
510 .ndo_set_rx_mode = qlcnic_set_multi,
511 .ndo_set_mac_address = qlcnic_set_mac,
512 .ndo_change_mtu = qlcnic_change_mtu,
513 .ndo_fix_features = qlcnic_fix_features,
514 .ndo_set_features = qlcnic_set_features,
515 .ndo_tx_timeout = qlcnic_tx_timeout,
516 .ndo_vlan_rx_add_vid = qlcnic_vlan_rx_add,
517 .ndo_vlan_rx_kill_vid = qlcnic_vlan_rx_del,
518 .ndo_fdb_add = qlcnic_fdb_add,
519 .ndo_fdb_del = qlcnic_fdb_del,
520 .ndo_fdb_dump = qlcnic_fdb_dump,
521 .ndo_get_phys_port_id = qlcnic_get_phys_port_id,
522 .ndo_features_check = qlcnic_features_check,
523 #ifdef CONFIG_QLCNIC_SRIOV
524 .ndo_set_vf_mac = qlcnic_sriov_set_vf_mac,
525 .ndo_set_vf_rate = qlcnic_sriov_set_vf_tx_rate,
526 .ndo_get_vf_config = qlcnic_sriov_get_vf_config,
527 .ndo_set_vf_vlan = qlcnic_sriov_set_vf_vlan,
528 .ndo_set_vf_spoofchk = qlcnic_sriov_set_vf_spoofchk,
529 #endif
530 };
531
532 static const struct net_device_ops qlcnic_netdev_failed_ops = {
533 .ndo_open = qlcnic_open,
534 };
535
536 static struct qlcnic_nic_template qlcnic_ops = {
537 .config_bridged_mode = qlcnic_config_bridged_mode,
538 .config_led = qlcnic_82xx_config_led,
539 .start_firmware = qlcnic_82xx_start_firmware,
540 .request_reset = qlcnic_82xx_dev_request_reset,
541 .cancel_idc_work = qlcnic_82xx_cancel_idc_work,
542 .napi_add = qlcnic_82xx_napi_add,
543 .napi_del = qlcnic_82xx_napi_del,
544 .config_ipaddr = qlcnic_82xx_config_ipaddr,
545 .shutdown = qlcnic_82xx_shutdown,
546 .resume = qlcnic_82xx_resume,
547 .clear_legacy_intr = qlcnic_82xx_clear_legacy_intr,
548 };
549
550 struct qlcnic_nic_template qlcnic_vf_ops = {
551 .config_bridged_mode = qlcnicvf_config_bridged_mode,
552 .config_led = qlcnicvf_config_led,
553 .start_firmware = qlcnicvf_start_firmware
554 };
555
556 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
557 .read_crb = qlcnic_82xx_read_crb,
558 .write_crb = qlcnic_82xx_write_crb,
559 .read_reg = qlcnic_82xx_hw_read_wx_2M,
560 .write_reg = qlcnic_82xx_hw_write_wx_2M,
561 .get_mac_address = qlcnic_82xx_get_mac_address,
562 .setup_intr = qlcnic_82xx_setup_intr,
563 .alloc_mbx_args = qlcnic_82xx_alloc_mbx_args,
564 .mbx_cmd = qlcnic_82xx_issue_cmd,
565 .get_func_no = qlcnic_82xx_get_func_no,
566 .api_lock = qlcnic_82xx_api_lock,
567 .api_unlock = qlcnic_82xx_api_unlock,
568 .add_sysfs = qlcnic_82xx_add_sysfs,
569 .remove_sysfs = qlcnic_82xx_remove_sysfs,
570 .process_lb_rcv_ring_diag = qlcnic_82xx_process_rcv_ring_diag,
571 .create_rx_ctx = qlcnic_82xx_fw_cmd_create_rx_ctx,
572 .create_tx_ctx = qlcnic_82xx_fw_cmd_create_tx_ctx,
573 .del_rx_ctx = qlcnic_82xx_fw_cmd_del_rx_ctx,
574 .del_tx_ctx = qlcnic_82xx_fw_cmd_del_tx_ctx,
575 .setup_link_event = qlcnic_82xx_linkevent_request,
576 .get_nic_info = qlcnic_82xx_get_nic_info,
577 .get_pci_info = qlcnic_82xx_get_pci_info,
578 .set_nic_info = qlcnic_82xx_set_nic_info,
579 .change_macvlan = qlcnic_82xx_sre_macaddr_change,
580 .napi_enable = qlcnic_82xx_napi_enable,
581 .napi_disable = qlcnic_82xx_napi_disable,
582 .config_intr_coal = qlcnic_82xx_config_intr_coalesce,
583 .config_rss = qlcnic_82xx_config_rss,
584 .config_hw_lro = qlcnic_82xx_config_hw_lro,
585 .config_loopback = qlcnic_82xx_set_lb_mode,
586 .clear_loopback = qlcnic_82xx_clear_lb_mode,
587 .config_promisc_mode = qlcnic_82xx_nic_set_promisc,
588 .change_l2_filter = qlcnic_82xx_change_filter,
589 .get_board_info = qlcnic_82xx_get_board_info,
590 .set_mac_filter_count = qlcnic_82xx_set_mac_filter_count,
591 .free_mac_list = qlcnic_82xx_free_mac_list,
592 .read_phys_port_id = qlcnic_82xx_read_phys_port_id,
593 .io_error_detected = qlcnic_82xx_io_error_detected,
594 .io_slot_reset = qlcnic_82xx_io_slot_reset,
595 .io_resume = qlcnic_82xx_io_resume,
596 .get_beacon_state = qlcnic_82xx_get_beacon_state,
597 .enable_sds_intr = qlcnic_82xx_enable_sds_intr,
598 .disable_sds_intr = qlcnic_82xx_disable_sds_intr,
599 .enable_tx_intr = qlcnic_82xx_enable_tx_intr,
600 .disable_tx_intr = qlcnic_82xx_disable_tx_intr,
601 .get_saved_state = qlcnic_82xx_get_saved_state,
602 .set_saved_state = qlcnic_82xx_set_saved_state,
603 .cache_tmpl_hdr_values = qlcnic_82xx_cache_tmpl_hdr_values,
604 .get_cap_size = qlcnic_82xx_get_cap_size,
605 .set_sys_info = qlcnic_82xx_set_sys_info,
606 .store_cap_mask = qlcnic_82xx_store_cap_mask,
607 .encap_rx_offload = qlcnic_82xx_encap_rx_offload,
608 .encap_tx_offload = qlcnic_82xx_encap_tx_offload,
609 };
610
qlcnic_check_multi_tx_capability(struct qlcnic_adapter * adapter)611 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
612 {
613 struct qlcnic_hardware_context *ahw = adapter->ahw;
614
615 if (qlcnic_82xx_check(adapter) &&
616 (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
617 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
618 return 0;
619 } else {
620 return 1;
621 }
622 }
623
qlcnic_max_rings(struct qlcnic_adapter * adapter,u8 ring_cnt,int queue_type)624 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
625 int queue_type)
626 {
627 int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
628
629 if (queue_type == QLCNIC_RX_QUEUE)
630 max_rings = adapter->max_sds_rings;
631 else if (queue_type == QLCNIC_TX_QUEUE)
632 max_rings = adapter->max_tx_rings;
633
634 num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
635 max_rings));
636
637 if (ring_cnt > num_rings)
638 return num_rings;
639 else
640 return ring_cnt;
641 }
642
qlcnic_set_tx_ring_count(struct qlcnic_adapter * adapter,u8 tx_cnt)643 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
644 {
645 /* 83xx adapter does not have max_tx_rings intialized in probe */
646 if (adapter->max_tx_rings)
647 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
648 QLCNIC_TX_QUEUE);
649 else
650 adapter->drv_tx_rings = tx_cnt;
651 }
652
qlcnic_set_sds_ring_count(struct qlcnic_adapter * adapter,u8 rx_cnt)653 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
654 {
655 /* 83xx adapter does not have max_sds_rings intialized in probe */
656 if (adapter->max_sds_rings)
657 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
658 QLCNIC_RX_QUEUE);
659 else
660 adapter->drv_sds_rings = rx_cnt;
661 }
662
qlcnic_setup_tss_rss_intr(struct qlcnic_adapter * adapter)663 int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
664 {
665 struct pci_dev *pdev = adapter->pdev;
666 int num_msix = 0, err = 0, vector;
667
668 adapter->flags &= ~QLCNIC_TSS_RSS;
669
670 if (adapter->drv_tss_rings > 0)
671 num_msix += adapter->drv_tss_rings;
672 else
673 num_msix += adapter->drv_tx_rings;
674
675 if (adapter->drv_rss_rings > 0)
676 num_msix += adapter->drv_rss_rings;
677 else
678 num_msix += adapter->drv_sds_rings;
679
680 if (qlcnic_83xx_check(adapter))
681 num_msix += 1;
682
683 if (!adapter->msix_entries) {
684 adapter->msix_entries = kcalloc(num_msix,
685 sizeof(struct msix_entry),
686 GFP_KERNEL);
687 if (!adapter->msix_entries)
688 return -ENOMEM;
689 }
690
691 for (vector = 0; vector < num_msix; vector++)
692 adapter->msix_entries[vector].entry = vector;
693
694 restore:
695 err = pci_enable_msix_exact(pdev, adapter->msix_entries, num_msix);
696 if (err == -ENOSPC) {
697 if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
698 return err;
699
700 netdev_info(adapter->netdev,
701 "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
702 num_msix, err);
703
704 num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
705
706 /* Set rings to 0 so we can restore original TSS/RSS count */
707 adapter->drv_tss_rings = 0;
708 adapter->drv_rss_rings = 0;
709
710 if (qlcnic_83xx_check(adapter))
711 num_msix += 1;
712
713 netdev_info(adapter->netdev,
714 "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
715 adapter->drv_tx_rings, adapter->drv_sds_rings,
716 num_msix);
717
718 goto restore;
719 } else if (err < 0) {
720 return err;
721 }
722
723 adapter->ahw->num_msix = num_msix;
724 if (adapter->drv_tss_rings > 0)
725 adapter->drv_tx_rings = adapter->drv_tss_rings;
726
727 if (adapter->drv_rss_rings > 0)
728 adapter->drv_sds_rings = adapter->drv_rss_rings;
729
730 return 0;
731 }
732
qlcnic_enable_msix(struct qlcnic_adapter * adapter,u32 num_msix)733 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
734 {
735 struct pci_dev *pdev = adapter->pdev;
736 int err, vector;
737
738 if (!adapter->msix_entries) {
739 adapter->msix_entries = kcalloc(num_msix,
740 sizeof(struct msix_entry),
741 GFP_KERNEL);
742 if (!adapter->msix_entries)
743 return -ENOMEM;
744 }
745
746 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
747
748 if (adapter->ahw->msix_supported) {
749 enable_msix:
750 for (vector = 0; vector < num_msix; vector++)
751 adapter->msix_entries[vector].entry = vector;
752
753 err = pci_enable_msix_range(pdev,
754 adapter->msix_entries, 1, num_msix);
755
756 if (err == num_msix) {
757 adapter->flags |= QLCNIC_MSIX_ENABLED;
758 adapter->ahw->num_msix = num_msix;
759 dev_info(&pdev->dev, "using msi-x interrupts\n");
760 return 0;
761 } else if (err > 0) {
762 pci_disable_msix(pdev);
763
764 dev_info(&pdev->dev,
765 "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
766 num_msix, err);
767
768 if (qlcnic_82xx_check(adapter)) {
769 num_msix = rounddown_pow_of_two(err);
770 if (err < QLCNIC_82XX_MINIMUM_VECTOR)
771 return -ENOSPC;
772 } else {
773 num_msix = rounddown_pow_of_two(err - 1);
774 num_msix += 1;
775 if (err < QLCNIC_83XX_MINIMUM_VECTOR)
776 return -ENOSPC;
777 }
778
779 if (qlcnic_82xx_check(adapter) &&
780 !qlcnic_check_multi_tx(adapter)) {
781 adapter->drv_sds_rings = num_msix;
782 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
783 } else {
784 /* Distribute vectors equally */
785 adapter->drv_tx_rings = num_msix / 2;
786 adapter->drv_sds_rings = adapter->drv_tx_rings;
787 }
788
789 if (num_msix) {
790 dev_info(&pdev->dev,
791 "Trying to allocate %d MSI-X interrupt vectors\n",
792 num_msix);
793 goto enable_msix;
794 }
795 } else {
796 dev_info(&pdev->dev,
797 "Unable to allocate %d MSI-X vectors, err=%d\n",
798 num_msix, err);
799 return err;
800 }
801 }
802
803 return -EIO;
804 }
805
qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter * adapter)806 static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
807 {
808 int num_msix;
809
810 num_msix = adapter->drv_sds_rings;
811
812 if (qlcnic_check_multi_tx(adapter))
813 num_msix += adapter->drv_tx_rings;
814 else
815 num_msix += QLCNIC_SINGLE_RING;
816
817 return num_msix;
818 }
819
qlcnic_enable_msi_legacy(struct qlcnic_adapter * adapter)820 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
821 {
822 int err = 0;
823 u32 offset, mask_reg;
824 const struct qlcnic_legacy_intr_set *legacy_intrp;
825 struct qlcnic_hardware_context *ahw = adapter->ahw;
826 struct pci_dev *pdev = adapter->pdev;
827
828 if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
829 adapter->flags |= QLCNIC_MSI_ENABLED;
830 offset = msi_tgt_status[adapter->ahw->pci_func];
831 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
832 offset);
833 dev_info(&pdev->dev, "using msi interrupts\n");
834 adapter->msix_entries[0].vector = pdev->irq;
835 return err;
836 }
837
838 if (qlcnic_use_msi || qlcnic_use_msi_x)
839 return -EOPNOTSUPP;
840
841 legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
842 adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
843 offset = legacy_intrp->tgt_status_reg;
844 adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
845 mask_reg = legacy_intrp->tgt_mask_reg;
846 adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
847 adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
848 adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
849 dev_info(&pdev->dev, "using legacy interrupts\n");
850 adapter->msix_entries[0].vector = pdev->irq;
851 return err;
852 }
853
qlcnic_82xx_setup_intr(struct qlcnic_adapter * adapter)854 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
855 {
856 int num_msix, err = 0;
857
858 if (adapter->flags & QLCNIC_TSS_RSS) {
859 err = qlcnic_setup_tss_rss_intr(adapter);
860 if (err < 0)
861 return err;
862 num_msix = adapter->ahw->num_msix;
863 } else {
864 num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
865
866 err = qlcnic_enable_msix(adapter, num_msix);
867 if (err == -ENOMEM)
868 return err;
869
870 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
871 qlcnic_disable_multi_tx(adapter);
872 adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
873
874 err = qlcnic_enable_msi_legacy(adapter);
875 if (err)
876 return err;
877 }
878 }
879
880 return 0;
881 }
882
qlcnic_82xx_mq_intrpt(struct qlcnic_adapter * adapter,int op_type)883 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
884 {
885 struct qlcnic_hardware_context *ahw = adapter->ahw;
886 int err, i;
887
888 if (qlcnic_check_multi_tx(adapter) &&
889 !ahw->diag_test &&
890 (adapter->flags & QLCNIC_MSIX_ENABLED)) {
891 ahw->intr_tbl =
892 vzalloc(array_size(sizeof(struct qlcnic_intrpt_config),
893 ahw->num_msix));
894 if (!ahw->intr_tbl)
895 return -ENOMEM;
896
897 for (i = 0; i < ahw->num_msix; i++) {
898 ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
899 ahw->intr_tbl[i].id = i;
900 ahw->intr_tbl[i].src = 0;
901 }
902
903 err = qlcnic_82xx_config_intrpt(adapter, 1);
904 if (err)
905 dev_err(&adapter->pdev->dev,
906 "Failed to configure Interrupt for %d vector\n",
907 ahw->num_msix);
908 return err;
909 }
910
911 return 0;
912 }
913
qlcnic_teardown_intr(struct qlcnic_adapter * adapter)914 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
915 {
916 if (adapter->flags & QLCNIC_MSIX_ENABLED)
917 pci_disable_msix(adapter->pdev);
918 if (adapter->flags & QLCNIC_MSI_ENABLED)
919 pci_disable_msi(adapter->pdev);
920
921 kfree(adapter->msix_entries);
922 adapter->msix_entries = NULL;
923
924 if (adapter->ahw->intr_tbl) {
925 vfree(adapter->ahw->intr_tbl);
926 adapter->ahw->intr_tbl = NULL;
927 }
928 }
929
qlcnic_cleanup_pci_map(struct qlcnic_hardware_context * ahw)930 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
931 {
932 if (ahw->pci_base0 != NULL)
933 iounmap(ahw->pci_base0);
934 }
935
qlcnic_get_act_pci_func(struct qlcnic_adapter * adapter)936 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
937 {
938 struct qlcnic_hardware_context *ahw = adapter->ahw;
939 struct qlcnic_pci_info *pci_info;
940 int ret;
941
942 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
943 switch (ahw->port_type) {
944 case QLCNIC_GBE:
945 ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
946 break;
947 case QLCNIC_XGBE:
948 ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
949 break;
950 }
951 return 0;
952 }
953
954 if (ahw->op_mode == QLCNIC_MGMT_FUNC)
955 return 0;
956
957 pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
958 if (!pci_info)
959 return -ENOMEM;
960
961 ret = qlcnic_get_pci_info(adapter, pci_info);
962 kfree(pci_info);
963 return ret;
964 }
965
qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter * adapter)966 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
967 {
968 bool ret = false;
969
970 if (qlcnic_84xx_check(adapter)) {
971 ret = true;
972 } else if (qlcnic_83xx_check(adapter)) {
973 if (adapter->ahw->extra_capability[0] &
974 QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
975 ret = true;
976 else
977 ret = false;
978 }
979
980 return ret;
981 }
982
qlcnic_init_pci_info(struct qlcnic_adapter * adapter)983 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
984 {
985 struct qlcnic_hardware_context *ahw = adapter->ahw;
986 struct qlcnic_pci_info *pci_info;
987 int i, id = 0, ret = 0, j = 0;
988 u16 act_pci_func;
989 u8 pfn;
990
991 pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
992 if (!pci_info)
993 return -ENOMEM;
994
995 ret = qlcnic_get_pci_info(adapter, pci_info);
996 if (ret)
997 goto err_pci_info;
998
999 act_pci_func = ahw->total_nic_func;
1000
1001 adapter->npars = kcalloc(act_pci_func,
1002 sizeof(struct qlcnic_npar_info),
1003 GFP_KERNEL);
1004 if (!adapter->npars) {
1005 ret = -ENOMEM;
1006 goto err_pci_info;
1007 }
1008
1009 adapter->eswitch = kcalloc(QLCNIC_NIU_MAX_XG_PORTS,
1010 sizeof(struct qlcnic_eswitch),
1011 GFP_KERNEL);
1012 if (!adapter->eswitch) {
1013 ret = -ENOMEM;
1014 goto err_npars;
1015 }
1016
1017 for (i = 0; i < ahw->max_vnic_func; i++) {
1018 pfn = pci_info[i].id;
1019
1020 if (pfn >= ahw->max_vnic_func) {
1021 ret = -EINVAL;
1022 dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
1023 __func__, pfn, ahw->max_vnic_func);
1024 goto err_eswitch;
1025 }
1026
1027 if (!pci_info[i].active ||
1028 (pci_info[i].type != QLCNIC_TYPE_NIC))
1029 continue;
1030
1031 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1032 if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1033 &id))
1034 adapter->npars[j].eswitch_status = true;
1035 else
1036 continue;
1037 } else {
1038 adapter->npars[j].eswitch_status = true;
1039 }
1040
1041 adapter->npars[j].pci_func = pfn;
1042 adapter->npars[j].active = (u8)pci_info[i].active;
1043 adapter->npars[j].type = (u8)pci_info[i].type;
1044 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1045 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1046 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1047
1048 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1049 j++;
1050 }
1051
1052 /* Update eSwitch status for adapters without per port eSwitch
1053 * configuration capability
1054 */
1055 if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1056 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1057 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1058 }
1059
1060 kfree(pci_info);
1061 return 0;
1062
1063 err_eswitch:
1064 kfree(adapter->eswitch);
1065 adapter->eswitch = NULL;
1066 err_npars:
1067 kfree(adapter->npars);
1068 adapter->npars = NULL;
1069 err_pci_info:
1070 kfree(pci_info);
1071
1072 return ret;
1073 }
1074
1075 static int
qlcnic_set_function_modes(struct qlcnic_adapter * adapter)1076 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1077 {
1078 u8 id;
1079 int ret;
1080 u32 data = QLCNIC_MGMT_FUNC;
1081 struct qlcnic_hardware_context *ahw = adapter->ahw;
1082
1083 ret = qlcnic_api_lock(adapter);
1084 if (ret)
1085 goto err_lock;
1086
1087 id = ahw->pci_func;
1088 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1089 data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1090 QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1091 QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1092 qlcnic_api_unlock(adapter);
1093 err_lock:
1094 return ret;
1095 }
1096
qlcnic_check_vf(struct qlcnic_adapter * adapter,const struct pci_device_id * ent)1097 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1098 const struct pci_device_id *ent)
1099 {
1100 u32 op_mode, priv_level;
1101
1102 /* Determine FW API version */
1103 adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1104 QLCNIC_FW_API);
1105
1106 /* Find PCI function number */
1107 qlcnic_get_func_no(adapter);
1108
1109 /* Determine function privilege level */
1110 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1111 if (op_mode == QLC_DEV_DRV_DEFAULT)
1112 priv_level = QLCNIC_MGMT_FUNC;
1113 else
1114 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1115
1116 if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1117 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1118 dev_info(&adapter->pdev->dev,
1119 "HAL Version: %d Non Privileged function\n",
1120 adapter->ahw->fw_hal_version);
1121 adapter->nic_ops = &qlcnic_vf_ops;
1122 } else
1123 adapter->nic_ops = &qlcnic_ops;
1124 }
1125
1126 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1127 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
qlcnic_get_bar_length(u32 dev_id,ulong * bar)1128 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1129 {
1130 switch (dev_id) {
1131 case PCI_DEVICE_ID_QLOGIC_QLE824X:
1132 *bar = QLCNIC_82XX_BAR0_LENGTH;
1133 break;
1134 case PCI_DEVICE_ID_QLOGIC_QLE834X:
1135 case PCI_DEVICE_ID_QLOGIC_QLE8830:
1136 case PCI_DEVICE_ID_QLOGIC_QLE844X:
1137 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1138 case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1139 case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
1140 *bar = QLCNIC_83XX_BAR0_LENGTH;
1141 break;
1142 default:
1143 *bar = 0;
1144 }
1145 }
1146
qlcnic_setup_pci_map(struct pci_dev * pdev,struct qlcnic_hardware_context * ahw)1147 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1148 struct qlcnic_hardware_context *ahw)
1149 {
1150 u32 offset;
1151 void __iomem *mem_ptr0 = NULL;
1152 unsigned long mem_len, pci_len0 = 0, bar0_len;
1153
1154 /* remap phys address */
1155 mem_len = pci_resource_len(pdev, 0);
1156
1157 qlcnic_get_bar_length(pdev->device, &bar0_len);
1158 if (mem_len >= bar0_len) {
1159
1160 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1161 if (mem_ptr0 == NULL) {
1162 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1163 return -EIO;
1164 }
1165 pci_len0 = mem_len;
1166 } else {
1167 return -EIO;
1168 }
1169
1170 dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1171
1172 ahw->pci_base0 = mem_ptr0;
1173 ahw->pci_len0 = pci_len0;
1174 offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1175 qlcnic_get_ioaddr(ahw, offset);
1176
1177 return 0;
1178 }
1179
qlcnic_validate_subsystem_id(struct qlcnic_adapter * adapter,int index)1180 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1181 int index)
1182 {
1183 struct pci_dev *pdev = adapter->pdev;
1184 unsigned short subsystem_vendor;
1185 bool ret = true;
1186
1187 subsystem_vendor = pdev->subsystem_vendor;
1188
1189 if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1190 pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1191 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1192 qlcnic_boards[index].sub_device == pdev->subsystem_device)
1193 ret = true;
1194 else
1195 ret = false;
1196 }
1197
1198 return ret;
1199 }
1200
qlcnic_get_board_name(struct qlcnic_adapter * adapter,char * name)1201 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1202 {
1203 struct pci_dev *pdev = adapter->pdev;
1204 int i, found = 0;
1205
1206 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1207 if (qlcnic_boards[i].vendor == pdev->vendor &&
1208 qlcnic_boards[i].device == pdev->device &&
1209 qlcnic_validate_subsystem_id(adapter, i)) {
1210 found = 1;
1211 break;
1212 }
1213 }
1214
1215 if (!found)
1216 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1217 else
1218 sprintf(name, "%pM: %s" , adapter->mac_addr,
1219 qlcnic_boards[i].short_name);
1220 }
1221
1222 static void
qlcnic_check_options(struct qlcnic_adapter * adapter)1223 qlcnic_check_options(struct qlcnic_adapter *adapter)
1224 {
1225 int err;
1226 u32 fw_major, fw_minor, fw_build, prev_fw_version;
1227 struct pci_dev *pdev = adapter->pdev;
1228 struct qlcnic_hardware_context *ahw = adapter->ahw;
1229 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1230
1231 prev_fw_version = adapter->fw_version;
1232
1233 fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1234 fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1235 fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1236
1237 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1238
1239 err = qlcnic_get_board_info(adapter);
1240 if (err) {
1241 dev_err(&pdev->dev, "Error getting board config info.\n");
1242 return;
1243 }
1244 if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1245 if (fw_dump->tmpl_hdr == NULL ||
1246 adapter->fw_version > prev_fw_version) {
1247 vfree(fw_dump->tmpl_hdr);
1248 if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1249 dev_info(&pdev->dev,
1250 "Supports FW dump capability\n");
1251 }
1252 }
1253
1254 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1255 QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1256
1257 if (adapter->ahw->port_type == QLCNIC_XGBE) {
1258 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1259 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1260 adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1261 } else {
1262 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1263 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1264 }
1265
1266 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1267 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1268
1269 } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1270 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1271 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1272 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1273 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1274 }
1275
1276 adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1277
1278 adapter->num_txd = MAX_CMD_DESCRIPTORS;
1279
1280 adapter->max_rds_rings = MAX_RDS_RINGS;
1281 }
1282
1283 static int
qlcnic_initialize_nic(struct qlcnic_adapter * adapter)1284 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1285 {
1286 struct qlcnic_info nic_info;
1287 int err = 0;
1288
1289 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1290 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1291 if (err)
1292 return err;
1293
1294 adapter->ahw->physical_port = (u8)nic_info.phys_port;
1295 adapter->ahw->switch_mode = nic_info.switch_mode;
1296 adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1297 adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1298 adapter->ahw->capabilities = nic_info.capabilities;
1299
1300 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1301 u32 temp;
1302 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1303 if (err == -EIO)
1304 return err;
1305 adapter->ahw->extra_capability[0] = temp;
1306 } else {
1307 adapter->ahw->extra_capability[0] = 0;
1308 }
1309
1310 adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1311 adapter->ahw->max_mtu = nic_info.max_mtu;
1312
1313 if (adapter->ahw->capabilities & BIT_6) {
1314 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1315 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1316 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1317 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1318
1319 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1320 } else {
1321 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1322 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1323 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1324 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1325 }
1326
1327 return err;
1328 }
1329
qlcnic_set_vlan_config(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1330 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1331 struct qlcnic_esw_func_cfg *esw_cfg)
1332 {
1333 if (esw_cfg->discard_tagged)
1334 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1335 else
1336 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1337
1338 if (esw_cfg->vlan_id) {
1339 adapter->rx_pvid = esw_cfg->vlan_id;
1340 adapter->tx_pvid = esw_cfg->vlan_id;
1341 } else {
1342 adapter->rx_pvid = 0;
1343 adapter->tx_pvid = 0;
1344 }
1345 }
1346
1347 static int
qlcnic_vlan_rx_add(struct net_device * netdev,__be16 proto,u16 vid)1348 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1349 {
1350 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1351 int err;
1352
1353 if (qlcnic_sriov_vf_check(adapter)) {
1354 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1355 if (err) {
1356 netdev_err(netdev,
1357 "Cannot add VLAN filter for VLAN id %d, err=%d",
1358 vid, err);
1359 return err;
1360 }
1361 }
1362
1363 set_bit(vid, adapter->vlans);
1364 return 0;
1365 }
1366
1367 static int
qlcnic_vlan_rx_del(struct net_device * netdev,__be16 proto,u16 vid)1368 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1369 {
1370 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1371 int err;
1372
1373 if (qlcnic_sriov_vf_check(adapter)) {
1374 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1375 if (err) {
1376 netdev_err(netdev,
1377 "Cannot delete VLAN filter for VLAN id %d, err=%d",
1378 vid, err);
1379 return err;
1380 }
1381 }
1382
1383 qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1384 clear_bit(vid, adapter->vlans);
1385 return 0;
1386 }
1387
qlcnic_set_eswitch_port_features(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1388 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1389 struct qlcnic_esw_func_cfg *esw_cfg)
1390 {
1391 adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1392 QLCNIC_PROMISC_DISABLED);
1393
1394 if (esw_cfg->mac_anti_spoof)
1395 adapter->flags |= QLCNIC_MACSPOOF;
1396
1397 if (!esw_cfg->mac_override)
1398 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1399
1400 if (!esw_cfg->promisc_mode)
1401 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1402 }
1403
qlcnic_set_eswitch_port_config(struct qlcnic_adapter * adapter)1404 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1405 {
1406 struct qlcnic_esw_func_cfg esw_cfg;
1407
1408 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1409 return 0;
1410
1411 esw_cfg.pci_func = adapter->ahw->pci_func;
1412 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1413 return -EIO;
1414 qlcnic_set_vlan_config(adapter, &esw_cfg);
1415 qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1416 qlcnic_set_netdev_features(adapter, &esw_cfg);
1417
1418 return 0;
1419 }
1420
qlcnic_set_netdev_features(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1421 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1422 struct qlcnic_esw_func_cfg *esw_cfg)
1423 {
1424 struct net_device *netdev = adapter->netdev;
1425
1426 if (qlcnic_83xx_check(adapter))
1427 return;
1428
1429 adapter->offload_flags = esw_cfg->offload_flags;
1430 adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1431 netdev_update_features(netdev);
1432 adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1433 }
1434
1435 static int
qlcnic_check_eswitch_mode(struct qlcnic_adapter * adapter)1436 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1437 {
1438 u32 op_mode, priv_level;
1439 int err = 0;
1440
1441 err = qlcnic_initialize_nic(adapter);
1442 if (err)
1443 return err;
1444
1445 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1446 return 0;
1447
1448 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1449 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1450
1451 if (op_mode == QLC_DEV_DRV_DEFAULT)
1452 priv_level = QLCNIC_MGMT_FUNC;
1453 else
1454 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1455
1456 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1457 if (priv_level == QLCNIC_MGMT_FUNC) {
1458 adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1459 err = qlcnic_init_pci_info(adapter);
1460 if (err)
1461 return err;
1462 /* Set privilege level for other functions */
1463 qlcnic_set_function_modes(adapter);
1464 dev_info(&adapter->pdev->dev,
1465 "HAL Version: %d, Management function\n",
1466 adapter->ahw->fw_hal_version);
1467 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1468 adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1469 dev_info(&adapter->pdev->dev,
1470 "HAL Version: %d, Privileged function\n",
1471 adapter->ahw->fw_hal_version);
1472 }
1473 } else {
1474 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1475 }
1476
1477 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1478
1479 return err;
1480 }
1481
qlcnic_set_default_offload_settings(struct qlcnic_adapter * adapter)1482 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1483 {
1484 struct qlcnic_esw_func_cfg esw_cfg;
1485 struct qlcnic_npar_info *npar;
1486 u8 i;
1487
1488 if (adapter->need_fw_reset)
1489 return 0;
1490
1491 for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1492 if (!adapter->npars[i].eswitch_status)
1493 continue;
1494
1495 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1496 esw_cfg.pci_func = adapter->npars[i].pci_func;
1497 esw_cfg.mac_override = BIT_0;
1498 esw_cfg.promisc_mode = BIT_0;
1499 if (qlcnic_82xx_check(adapter)) {
1500 esw_cfg.offload_flags = BIT_0;
1501 if (QLCNIC_IS_TSO_CAPABLE(adapter))
1502 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1503 }
1504 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1505 return -EIO;
1506 npar = &adapter->npars[i];
1507 npar->pvid = esw_cfg.vlan_id;
1508 npar->mac_override = esw_cfg.mac_override;
1509 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1510 npar->discard_tagged = esw_cfg.discard_tagged;
1511 npar->promisc_mode = esw_cfg.promisc_mode;
1512 npar->offload_flags = esw_cfg.offload_flags;
1513 }
1514
1515 return 0;
1516 }
1517
1518
1519 static int
qlcnic_reset_eswitch_config(struct qlcnic_adapter * adapter,struct qlcnic_npar_info * npar,int pci_func)1520 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1521 struct qlcnic_npar_info *npar, int pci_func)
1522 {
1523 struct qlcnic_esw_func_cfg esw_cfg;
1524 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1525 esw_cfg.pci_func = pci_func;
1526 esw_cfg.vlan_id = npar->pvid;
1527 esw_cfg.mac_override = npar->mac_override;
1528 esw_cfg.discard_tagged = npar->discard_tagged;
1529 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1530 esw_cfg.offload_flags = npar->offload_flags;
1531 esw_cfg.promisc_mode = npar->promisc_mode;
1532 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1533 return -EIO;
1534
1535 esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1536 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1537 return -EIO;
1538
1539 return 0;
1540 }
1541
qlcnic_reset_npar_config(struct qlcnic_adapter * adapter)1542 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1543 {
1544 int i, err;
1545 struct qlcnic_npar_info *npar;
1546 struct qlcnic_info nic_info;
1547 u8 pci_func;
1548
1549 if (qlcnic_82xx_check(adapter))
1550 if (!adapter->need_fw_reset)
1551 return 0;
1552
1553 /* Set the NPAR config data after FW reset */
1554 for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1555 npar = &adapter->npars[i];
1556 pci_func = npar->pci_func;
1557 if (!adapter->npars[i].eswitch_status)
1558 continue;
1559
1560 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1561 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1562 if (err)
1563 return err;
1564 nic_info.min_tx_bw = npar->min_bw;
1565 nic_info.max_tx_bw = npar->max_bw;
1566 err = qlcnic_set_nic_info(adapter, &nic_info);
1567 if (err)
1568 return err;
1569
1570 if (npar->enable_pm) {
1571 err = qlcnic_config_port_mirroring(adapter,
1572 npar->dest_npar, 1,
1573 pci_func);
1574 if (err)
1575 return err;
1576 }
1577 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1578 if (err)
1579 return err;
1580 }
1581 return 0;
1582 }
1583
qlcnic_check_npar_opertional(struct qlcnic_adapter * adapter)1584 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1585 {
1586 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1587 u32 npar_state;
1588
1589 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1590 return 0;
1591
1592 npar_state = QLC_SHARED_REG_RD32(adapter,
1593 QLCNIC_CRB_DEV_NPAR_STATE);
1594 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1595 msleep(1000);
1596 npar_state = QLC_SHARED_REG_RD32(adapter,
1597 QLCNIC_CRB_DEV_NPAR_STATE);
1598 }
1599 if (!npar_opt_timeo) {
1600 dev_err(&adapter->pdev->dev,
1601 "Waiting for NPAR state to operational timeout\n");
1602 return -EIO;
1603 }
1604 return 0;
1605 }
1606
1607 static int
qlcnic_set_mgmt_operations(struct qlcnic_adapter * adapter)1608 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1609 {
1610 int err;
1611
1612 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1613 adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1614 return 0;
1615
1616 err = qlcnic_set_default_offload_settings(adapter);
1617 if (err)
1618 return err;
1619
1620 err = qlcnic_reset_npar_config(adapter);
1621 if (err)
1622 return err;
1623
1624 qlcnic_dev_set_npar_ready(adapter);
1625
1626 return err;
1627 }
1628
qlcnic_82xx_start_firmware(struct qlcnic_adapter * adapter)1629 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1630 {
1631 int err;
1632
1633 err = qlcnic_can_start_firmware(adapter);
1634 if (err < 0)
1635 return err;
1636 else if (!err)
1637 goto check_fw_status;
1638
1639 if (qlcnic_load_fw_file)
1640 qlcnic_request_firmware(adapter);
1641 else {
1642 err = qlcnic_check_flash_fw_ver(adapter);
1643 if (err)
1644 goto err_out;
1645
1646 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1647 }
1648
1649 err = qlcnic_need_fw_reset(adapter);
1650 if (err == 0)
1651 goto check_fw_status;
1652
1653 err = qlcnic_pinit_from_rom(adapter);
1654 if (err)
1655 goto err_out;
1656
1657 err = qlcnic_load_firmware(adapter);
1658 if (err)
1659 goto err_out;
1660
1661 qlcnic_release_firmware(adapter);
1662 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1663
1664 check_fw_status:
1665 err = qlcnic_check_fw_status(adapter);
1666 if (err)
1667 goto err_out;
1668
1669 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1670 qlcnic_idc_debug_info(adapter, 1);
1671 err = qlcnic_check_eswitch_mode(adapter);
1672 if (err) {
1673 dev_err(&adapter->pdev->dev,
1674 "Memory allocation failed for eswitch\n");
1675 goto err_out;
1676 }
1677 err = qlcnic_set_mgmt_operations(adapter);
1678 if (err)
1679 goto err_out;
1680
1681 qlcnic_check_options(adapter);
1682 adapter->need_fw_reset = 0;
1683
1684 qlcnic_release_firmware(adapter);
1685 return 0;
1686
1687 err_out:
1688 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1689 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1690
1691 qlcnic_release_firmware(adapter);
1692 return err;
1693 }
1694
1695 static int
qlcnic_request_irq(struct qlcnic_adapter * adapter)1696 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1697 {
1698 irq_handler_t handler;
1699 struct qlcnic_host_sds_ring *sds_ring;
1700 struct qlcnic_host_tx_ring *tx_ring;
1701 int err, ring, num_sds_rings;
1702
1703 unsigned long flags = 0;
1704 struct net_device *netdev = adapter->netdev;
1705 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1706
1707 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1708 if (qlcnic_82xx_check(adapter))
1709 handler = qlcnic_tmp_intr;
1710 else
1711 handler = qlcnic_83xx_tmp_intr;
1712 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1713 flags |= IRQF_SHARED;
1714
1715 } else {
1716 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1717 handler = qlcnic_msix_intr;
1718 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1719 handler = qlcnic_msi_intr;
1720 else {
1721 flags |= IRQF_SHARED;
1722 if (qlcnic_82xx_check(adapter))
1723 handler = qlcnic_intr;
1724 else
1725 handler = qlcnic_83xx_intr;
1726 }
1727 }
1728 adapter->irq = netdev->irq;
1729
1730 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1731 if (qlcnic_82xx_check(adapter) ||
1732 (qlcnic_83xx_check(adapter) &&
1733 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1734 num_sds_rings = adapter->drv_sds_rings;
1735 for (ring = 0; ring < num_sds_rings; ring++) {
1736 sds_ring = &recv_ctx->sds_rings[ring];
1737 if (qlcnic_82xx_check(adapter) &&
1738 !qlcnic_check_multi_tx(adapter) &&
1739 (ring == (num_sds_rings - 1))) {
1740 if (!(adapter->flags &
1741 QLCNIC_MSIX_ENABLED))
1742 snprintf(sds_ring->name,
1743 sizeof(sds_ring->name),
1744 "qlcnic");
1745 else
1746 snprintf(sds_ring->name,
1747 sizeof(sds_ring->name),
1748 "%s-tx-0-rx-%d",
1749 netdev->name, ring);
1750 } else {
1751 snprintf(sds_ring->name,
1752 sizeof(sds_ring->name),
1753 "%s-rx-%d",
1754 netdev->name, ring);
1755 }
1756 err = request_irq(sds_ring->irq, handler, flags,
1757 sds_ring->name, sds_ring);
1758 if (err)
1759 return err;
1760 }
1761 }
1762 if ((qlcnic_82xx_check(adapter) &&
1763 qlcnic_check_multi_tx(adapter)) ||
1764 (qlcnic_83xx_check(adapter) &&
1765 (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1766 !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1767 handler = qlcnic_msix_tx_intr;
1768 for (ring = 0; ring < adapter->drv_tx_rings;
1769 ring++) {
1770 tx_ring = &adapter->tx_ring[ring];
1771 snprintf(tx_ring->name, sizeof(tx_ring->name),
1772 "%s-tx-%d", netdev->name, ring);
1773 err = request_irq(tx_ring->irq, handler, flags,
1774 tx_ring->name, tx_ring);
1775 if (err)
1776 return err;
1777 }
1778 }
1779 }
1780 return 0;
1781 }
1782
1783 static void
qlcnic_free_irq(struct qlcnic_adapter * adapter)1784 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1785 {
1786 int ring;
1787 struct qlcnic_host_sds_ring *sds_ring;
1788 struct qlcnic_host_tx_ring *tx_ring;
1789
1790 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1791
1792 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1793 if (qlcnic_82xx_check(adapter) ||
1794 (qlcnic_83xx_check(adapter) &&
1795 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1796 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1797 sds_ring = &recv_ctx->sds_rings[ring];
1798 free_irq(sds_ring->irq, sds_ring);
1799 }
1800 }
1801 if ((qlcnic_83xx_check(adapter) &&
1802 !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1803 (qlcnic_82xx_check(adapter) &&
1804 qlcnic_check_multi_tx(adapter))) {
1805 for (ring = 0; ring < adapter->drv_tx_rings;
1806 ring++) {
1807 tx_ring = &adapter->tx_ring[ring];
1808 if (tx_ring->irq)
1809 free_irq(tx_ring->irq, tx_ring);
1810 }
1811 }
1812 }
1813 }
1814
qlcnic_get_lro_mss_capability(struct qlcnic_adapter * adapter)1815 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1816 {
1817 u32 capab = 0;
1818
1819 if (qlcnic_82xx_check(adapter)) {
1820 if (adapter->ahw->extra_capability[0] &
1821 QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1822 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1823 } else {
1824 capab = adapter->ahw->capabilities;
1825 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1826 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1827 }
1828 }
1829
qlcnic_config_def_intr_coalesce(struct qlcnic_adapter * adapter)1830 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1831 {
1832 struct qlcnic_hardware_context *ahw = adapter->ahw;
1833 int err;
1834
1835 /* Initialize interrupt coalesce parameters */
1836 ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1837
1838 if (qlcnic_83xx_check(adapter)) {
1839 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1840 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1841 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1842 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1843 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1844
1845 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1846 } else {
1847 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1848 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1849 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1850
1851 err = qlcnic_82xx_set_rx_coalesce(adapter);
1852 }
1853
1854 return err;
1855 }
1856
__qlcnic_up(struct qlcnic_adapter * adapter,struct net_device * netdev)1857 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1858 {
1859 int ring;
1860 struct qlcnic_host_rds_ring *rds_ring;
1861
1862 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1863 return -EIO;
1864
1865 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1866 return 0;
1867
1868 if (qlcnic_set_eswitch_port_config(adapter))
1869 return -EIO;
1870
1871 qlcnic_get_lro_mss_capability(adapter);
1872
1873 if (qlcnic_fw_create_ctx(adapter))
1874 return -EIO;
1875
1876 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1877 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1878 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1879 }
1880
1881 qlcnic_set_multi(netdev);
1882 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1883
1884 adapter->ahw->linkup = 0;
1885
1886 if (adapter->drv_sds_rings > 1)
1887 qlcnic_config_rss(adapter, 1);
1888
1889 qlcnic_config_def_intr_coalesce(adapter);
1890
1891 if (netdev->features & NETIF_F_LRO)
1892 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1893
1894 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1895 qlcnic_napi_enable(adapter);
1896
1897 qlcnic_linkevent_request(adapter, 1);
1898
1899 adapter->ahw->reset_context = 0;
1900 netif_tx_start_all_queues(netdev);
1901 return 0;
1902 }
1903
qlcnic_up(struct qlcnic_adapter * adapter,struct net_device * netdev)1904 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1905 {
1906 int err = 0;
1907
1908 rtnl_lock();
1909 if (netif_running(netdev))
1910 err = __qlcnic_up(adapter, netdev);
1911 rtnl_unlock();
1912
1913 return err;
1914 }
1915
__qlcnic_down(struct qlcnic_adapter * adapter,struct net_device * netdev)1916 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1917 {
1918 int ring;
1919
1920 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1921 return;
1922
1923 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1924 return;
1925
1926 smp_mb();
1927 netif_carrier_off(netdev);
1928 adapter->ahw->linkup = 0;
1929 netif_tx_disable(netdev);
1930
1931 qlcnic_free_mac_list(adapter);
1932
1933 if (adapter->fhash.fnum)
1934 qlcnic_delete_lb_filters(adapter);
1935
1936 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1937 if (qlcnic_sriov_vf_check(adapter))
1938 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1939
1940 qlcnic_napi_disable(adapter);
1941
1942 qlcnic_fw_destroy_ctx(adapter);
1943 adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1944
1945 qlcnic_reset_rx_buffers_list(adapter);
1946
1947 for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1948 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1949 }
1950
1951 /* Usage: During suspend and firmware recovery module */
1952
qlcnic_down(struct qlcnic_adapter * adapter,struct net_device * netdev)1953 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1954 {
1955 rtnl_lock();
1956 if (netif_running(netdev))
1957 __qlcnic_down(adapter, netdev);
1958 rtnl_unlock();
1959
1960 }
1961
1962 int
qlcnic_attach(struct qlcnic_adapter * adapter)1963 qlcnic_attach(struct qlcnic_adapter *adapter)
1964 {
1965 struct net_device *netdev = adapter->netdev;
1966 struct pci_dev *pdev = adapter->pdev;
1967 int err;
1968
1969 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1970 return 0;
1971
1972 err = qlcnic_napi_add(adapter, netdev);
1973 if (err)
1974 return err;
1975
1976 err = qlcnic_alloc_sw_resources(adapter);
1977 if (err) {
1978 dev_err(&pdev->dev, "Error in setting sw resources\n");
1979 goto err_out_napi_del;
1980 }
1981
1982 err = qlcnic_alloc_hw_resources(adapter);
1983 if (err) {
1984 dev_err(&pdev->dev, "Error in setting hw resources\n");
1985 goto err_out_free_sw;
1986 }
1987
1988 err = qlcnic_request_irq(adapter);
1989 if (err) {
1990 dev_err(&pdev->dev, "failed to setup interrupt\n");
1991 goto err_out_free_hw;
1992 }
1993
1994 qlcnic_create_sysfs_entries(adapter);
1995
1996 if (qlcnic_encap_rx_offload(adapter))
1997 udp_tunnel_nic_reset_ntf(netdev);
1998
1999 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
2000 return 0;
2001
2002 err_out_free_hw:
2003 qlcnic_free_hw_resources(adapter);
2004 err_out_free_sw:
2005 qlcnic_free_sw_resources(adapter);
2006 err_out_napi_del:
2007 qlcnic_napi_del(adapter);
2008 return err;
2009 }
2010
qlcnic_detach(struct qlcnic_adapter * adapter)2011 void qlcnic_detach(struct qlcnic_adapter *adapter)
2012 {
2013 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2014 return;
2015
2016 qlcnic_remove_sysfs_entries(adapter);
2017
2018 qlcnic_free_hw_resources(adapter);
2019 qlcnic_release_rx_buffers(adapter);
2020 qlcnic_free_irq(adapter);
2021 qlcnic_napi_del(adapter);
2022 qlcnic_free_sw_resources(adapter);
2023
2024 adapter->is_up = 0;
2025 }
2026
qlcnic_diag_free_res(struct net_device * netdev,int drv_sds_rings)2027 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2028 {
2029 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2030 struct qlcnic_host_sds_ring *sds_ring;
2031 int drv_tx_rings = adapter->drv_tx_rings;
2032 int ring;
2033
2034 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2035 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2036 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2037 sds_ring = &adapter->recv_ctx->sds_rings[ring];
2038 qlcnic_disable_sds_intr(adapter, sds_ring);
2039 }
2040 }
2041
2042 qlcnic_fw_destroy_ctx(adapter);
2043
2044 qlcnic_detach(adapter);
2045
2046 adapter->ahw->diag_test = 0;
2047 adapter->drv_sds_rings = drv_sds_rings;
2048 adapter->drv_tx_rings = drv_tx_rings;
2049
2050 if (qlcnic_attach(adapter))
2051 goto out;
2052
2053 if (netif_running(netdev))
2054 __qlcnic_up(adapter, netdev);
2055 out:
2056 netif_device_attach(netdev);
2057 }
2058
qlcnic_alloc_adapter_resources(struct qlcnic_adapter * adapter)2059 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2060 {
2061 struct qlcnic_hardware_context *ahw = adapter->ahw;
2062 int err = 0;
2063
2064 adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2065 GFP_KERNEL);
2066 if (!adapter->recv_ctx) {
2067 err = -ENOMEM;
2068 goto err_out;
2069 }
2070
2071 if (qlcnic_83xx_check(adapter)) {
2072 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2073 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
2074 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
2075 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2076 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2077 } else {
2078 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
2079 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2080 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2081 }
2082
2083 /* clear stats */
2084 memset(&adapter->stats, 0, sizeof(adapter->stats));
2085 err_out:
2086 return err;
2087 }
2088
qlcnic_free_adapter_resources(struct qlcnic_adapter * adapter)2089 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2090 {
2091 struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
2092
2093 kfree(adapter->recv_ctx);
2094 adapter->recv_ctx = NULL;
2095
2096 if (fw_dump->tmpl_hdr) {
2097 vfree(fw_dump->tmpl_hdr);
2098 fw_dump->tmpl_hdr = NULL;
2099 }
2100
2101 if (fw_dump->dma_buffer) {
2102 dma_free_coherent(&adapter->pdev->dev, QLC_PEX_DMA_READ_SIZE,
2103 fw_dump->dma_buffer, fw_dump->phys_addr);
2104 fw_dump->dma_buffer = NULL;
2105 }
2106
2107 kfree(adapter->ahw->reset.buff);
2108 adapter->ahw->fw_dump.tmpl_hdr = NULL;
2109 }
2110
qlcnic_diag_alloc_res(struct net_device * netdev,int test)2111 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2112 {
2113 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2114 struct qlcnic_host_sds_ring *sds_ring;
2115 struct qlcnic_host_rds_ring *rds_ring;
2116 int ring;
2117 int ret;
2118
2119 netif_device_detach(netdev);
2120
2121 if (netif_running(netdev))
2122 __qlcnic_down(adapter, netdev);
2123
2124 qlcnic_detach(adapter);
2125
2126 adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2127 adapter->ahw->diag_test = test;
2128 adapter->ahw->linkup = 0;
2129
2130 ret = qlcnic_attach(adapter);
2131 if (ret) {
2132 netif_device_attach(netdev);
2133 return ret;
2134 }
2135
2136 ret = qlcnic_fw_create_ctx(adapter);
2137 if (ret) {
2138 qlcnic_detach(adapter);
2139 netif_device_attach(netdev);
2140 return ret;
2141 }
2142
2143 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2144 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2145 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2146 }
2147
2148 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2149 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2150 sds_ring = &adapter->recv_ctx->sds_rings[ring];
2151 qlcnic_enable_sds_intr(adapter, sds_ring);
2152 }
2153 }
2154
2155 if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2156 adapter->ahw->loopback_state = 0;
2157 qlcnic_linkevent_request(adapter, 1);
2158 }
2159
2160 set_bit(__QLCNIC_DEV_UP, &adapter->state);
2161
2162 return 0;
2163 }
2164
2165 /* Reset context in hardware only */
2166 static int
qlcnic_reset_hw_context(struct qlcnic_adapter * adapter)2167 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2168 {
2169 struct net_device *netdev = adapter->netdev;
2170
2171 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2172 return -EBUSY;
2173
2174 netif_device_detach(netdev);
2175
2176 qlcnic_down(adapter, netdev);
2177
2178 qlcnic_up(adapter, netdev);
2179
2180 netif_device_attach(netdev);
2181
2182 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2183 netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2184 return 0;
2185 }
2186
2187 int
qlcnic_reset_context(struct qlcnic_adapter * adapter)2188 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2189 {
2190 int err = 0;
2191 struct net_device *netdev = adapter->netdev;
2192
2193 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2194 return -EBUSY;
2195
2196 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2197
2198 netif_device_detach(netdev);
2199
2200 if (netif_running(netdev))
2201 __qlcnic_down(adapter, netdev);
2202
2203 qlcnic_detach(adapter);
2204
2205 if (netif_running(netdev)) {
2206 err = qlcnic_attach(adapter);
2207 if (!err) {
2208 __qlcnic_up(adapter, netdev);
2209 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2210 }
2211 }
2212
2213 netif_device_attach(netdev);
2214 }
2215
2216 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2217 return err;
2218 }
2219
qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter * adapter)2220 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2221 {
2222 struct qlcnic_hardware_context *ahw = adapter->ahw;
2223 u16 act_pci_fn = ahw->total_nic_func;
2224 u16 count;
2225
2226 ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2227 if (act_pci_fn <= 2)
2228 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2229 act_pci_fn;
2230 else
2231 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2232 act_pci_fn;
2233 ahw->max_uc_count = count;
2234 }
2235
qlcnic_set_real_num_queues(struct qlcnic_adapter * adapter,u8 tx_queues,u8 rx_queues)2236 static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
2237 u8 tx_queues, u8 rx_queues)
2238 {
2239 struct net_device *netdev = adapter->netdev;
2240 int err = 0;
2241
2242 if (tx_queues) {
2243 err = netif_set_real_num_tx_queues(netdev, tx_queues);
2244 if (err) {
2245 netdev_err(netdev, "failed to set %d Tx queues\n",
2246 tx_queues);
2247 return err;
2248 }
2249 }
2250
2251 if (rx_queues) {
2252 err = netif_set_real_num_rx_queues(netdev, rx_queues);
2253 if (err)
2254 netdev_err(netdev, "failed to set %d Rx queues\n",
2255 rx_queues);
2256 }
2257
2258 return err;
2259 }
2260
2261 int
qlcnic_setup_netdev(struct qlcnic_adapter * adapter,struct net_device * netdev)2262 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev)
2263 {
2264 int err;
2265 struct pci_dev *pdev = adapter->pdev;
2266
2267 adapter->rx_csum = 1;
2268 adapter->ahw->mc_enabled = 0;
2269 qlcnic_set_mac_filter_count(adapter);
2270
2271 netdev->netdev_ops = &qlcnic_netdev_ops;
2272 netdev->watchdog_timeo = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2273
2274 qlcnic_change_mtu(netdev, netdev->mtu);
2275
2276 netdev->ethtool_ops = (qlcnic_sriov_vf_check(adapter)) ?
2277 &qlcnic_sriov_vf_ethtool_ops : &qlcnic_ethtool_ops;
2278
2279 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2280 NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2281 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HIGHDMA);
2282 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2283 NETIF_F_IPV6_CSUM | NETIF_F_HIGHDMA);
2284
2285 if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2286 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2287 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2288 }
2289
2290 if (qlcnic_vlan_tx_check(adapter))
2291 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2292
2293 if (qlcnic_sriov_vf_check(adapter))
2294 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2295
2296 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2297 netdev->features |= NETIF_F_LRO;
2298
2299 if (qlcnic_encap_tx_offload(adapter)) {
2300 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2301
2302 /* encapsulation Tx offload supported by Adapter */
2303 netdev->hw_enc_features = NETIF_F_IP_CSUM |
2304 NETIF_F_GSO_UDP_TUNNEL |
2305 NETIF_F_TSO |
2306 NETIF_F_TSO6;
2307 }
2308
2309 if (qlcnic_encap_rx_offload(adapter)) {
2310 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2311
2312 netdev->udp_tunnel_nic_info = &qlcnic_udp_tunnels;
2313 }
2314
2315 netdev->hw_features = netdev->features;
2316 netdev->priv_flags |= IFF_UNICAST_FLT;
2317 netdev->irq = adapter->msix_entries[0].vector;
2318
2319 /* MTU range: 68 - 9600 */
2320 netdev->min_mtu = P3P_MIN_MTU;
2321 netdev->max_mtu = P3P_MAX_MTU;
2322
2323 err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings,
2324 adapter->drv_sds_rings);
2325 if (err)
2326 return err;
2327
2328 qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2329
2330 err = register_netdev(netdev);
2331 if (err) {
2332 dev_err(&pdev->dev, "failed to register net device\n");
2333 return err;
2334 }
2335
2336 return 0;
2337 }
2338
qlcnic_free_tx_rings(struct qlcnic_adapter * adapter)2339 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2340 {
2341 int ring;
2342 struct qlcnic_host_tx_ring *tx_ring;
2343
2344 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2345 tx_ring = &adapter->tx_ring[ring];
2346 if (tx_ring) {
2347 vfree(tx_ring->cmd_buf_arr);
2348 tx_ring->cmd_buf_arr = NULL;
2349 }
2350 }
2351 kfree(adapter->tx_ring);
2352 }
2353
qlcnic_alloc_tx_rings(struct qlcnic_adapter * adapter,struct net_device * netdev)2354 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2355 struct net_device *netdev)
2356 {
2357 int ring, vector, index;
2358 struct qlcnic_host_tx_ring *tx_ring;
2359 struct qlcnic_cmd_buffer *cmd_buf_arr;
2360
2361 tx_ring = kcalloc(adapter->drv_tx_rings,
2362 sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2363 if (tx_ring == NULL)
2364 return -ENOMEM;
2365
2366 adapter->tx_ring = tx_ring;
2367
2368 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2369 tx_ring = &adapter->tx_ring[ring];
2370 tx_ring->num_desc = adapter->num_txd;
2371 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2372 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2373 if (cmd_buf_arr == NULL) {
2374 qlcnic_free_tx_rings(adapter);
2375 return -ENOMEM;
2376 }
2377 tx_ring->cmd_buf_arr = cmd_buf_arr;
2378 spin_lock_init(&tx_ring->tx_clean_lock);
2379 }
2380
2381 if (qlcnic_83xx_check(adapter) ||
2382 (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2383 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2384 tx_ring = &adapter->tx_ring[ring];
2385 tx_ring->adapter = adapter;
2386 if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2387 index = adapter->drv_sds_rings + ring;
2388 vector = adapter->msix_entries[index].vector;
2389 tx_ring->irq = vector;
2390 }
2391 }
2392 }
2393
2394 return 0;
2395 }
2396
qlcnic_set_drv_version(struct qlcnic_adapter * adapter)2397 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2398 {
2399 struct qlcnic_hardware_context *ahw = adapter->ahw;
2400 u32 fw_cmd = 0;
2401
2402 if (qlcnic_82xx_check(adapter))
2403 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2404 else if (qlcnic_83xx_check(adapter))
2405 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2406
2407 if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2408 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2409 }
2410
2411 /* Reset firmware API lock */
qlcnic_reset_api_lock(struct qlcnic_adapter * adapter)2412 static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2413 {
2414 qlcnic_api_lock(adapter);
2415 qlcnic_api_unlock(adapter);
2416 }
2417
2418
2419 static int
qlcnic_probe(struct pci_dev * pdev,const struct pci_device_id * ent)2420 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2421 {
2422 struct net_device *netdev = NULL;
2423 struct qlcnic_adapter *adapter = NULL;
2424 struct qlcnic_hardware_context *ahw;
2425 char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2426 int err;
2427
2428 err = pci_enable_device(pdev);
2429 if (err)
2430 return err;
2431
2432 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2433 err = -ENODEV;
2434 goto err_out_disable_pdev;
2435 }
2436
2437 err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
2438 if (err) {
2439 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2440 goto err_out_disable_pdev;
2441 }
2442
2443 err = pci_request_regions(pdev, qlcnic_driver_name);
2444 if (err)
2445 goto err_out_disable_pdev;
2446
2447 pci_set_master(pdev);
2448 pci_enable_pcie_error_reporting(pdev);
2449
2450 ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2451 if (!ahw) {
2452 err = -ENOMEM;
2453 goto err_out_free_res;
2454 }
2455
2456 switch (ent->device) {
2457 case PCI_DEVICE_ID_QLOGIC_QLE824X:
2458 ahw->hw_ops = &qlcnic_hw_ops;
2459 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2460 break;
2461 case PCI_DEVICE_ID_QLOGIC_QLE834X:
2462 case PCI_DEVICE_ID_QLOGIC_QLE8830:
2463 case PCI_DEVICE_ID_QLOGIC_QLE844X:
2464 qlcnic_83xx_register_map(ahw);
2465 break;
2466 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2467 case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
2468 case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2469 qlcnic_sriov_vf_register_map(ahw);
2470 break;
2471 default:
2472 err = -EINVAL;
2473 goto err_out_free_hw_res;
2474 }
2475
2476 err = qlcnic_setup_pci_map(pdev, ahw);
2477 if (err)
2478 goto err_out_free_hw_res;
2479
2480 netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2481 QLCNIC_MAX_TX_RINGS);
2482 if (!netdev) {
2483 err = -ENOMEM;
2484 goto err_out_iounmap;
2485 }
2486
2487 SET_NETDEV_DEV(netdev, &pdev->dev);
2488
2489 adapter = netdev_priv(netdev);
2490 adapter->netdev = netdev;
2491 adapter->pdev = pdev;
2492 adapter->ahw = ahw;
2493
2494 adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2495 if (adapter->qlcnic_wq == NULL) {
2496 err = -ENOMEM;
2497 dev_err(&pdev->dev, "Failed to create workqueue\n");
2498 goto err_out_free_netdev;
2499 }
2500
2501 err = qlcnic_alloc_adapter_resources(adapter);
2502 if (err)
2503 goto err_out_free_wq;
2504
2505 adapter->dev_rst_time = jiffies;
2506 ahw->revision_id = pdev->revision;
2507 ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2508 if (qlcnic_mac_learn == FDB_MAC_LEARN)
2509 adapter->fdb_mac_learn = true;
2510 else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2511 adapter->drv_mac_learn = true;
2512
2513 rwlock_init(&adapter->ahw->crb_lock);
2514 mutex_init(&adapter->ahw->mem_lock);
2515
2516 INIT_LIST_HEAD(&adapter->mac_list);
2517
2518 qlcnic_register_dcb(adapter);
2519
2520 if (qlcnic_82xx_check(adapter)) {
2521 qlcnic_check_vf(adapter, ent);
2522 adapter->portnum = adapter->ahw->pci_func;
2523 qlcnic_reset_api_lock(adapter);
2524 err = qlcnic_start_firmware(adapter);
2525 if (err) {
2526 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2527 "\t\tIf reboot doesn't help, try flashing the card\n");
2528 goto err_out_maintenance_mode;
2529 }
2530
2531 /* compute and set default and max tx/sds rings */
2532 if (adapter->ahw->msix_supported) {
2533 if (qlcnic_check_multi_tx_capability(adapter) == 1)
2534 qlcnic_set_tx_ring_count(adapter,
2535 QLCNIC_SINGLE_RING);
2536 else
2537 qlcnic_set_tx_ring_count(adapter,
2538 QLCNIC_DEF_TX_RINGS);
2539 qlcnic_set_sds_ring_count(adapter,
2540 QLCNIC_DEF_SDS_RINGS);
2541 } else {
2542 qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2543 qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2544 }
2545
2546 err = qlcnic_setup_idc_param(adapter);
2547 if (err)
2548 goto err_out_free_hw;
2549
2550 adapter->flags |= QLCNIC_NEED_FLR;
2551
2552 } else if (qlcnic_83xx_check(adapter)) {
2553 qlcnic_83xx_check_vf(adapter, ent);
2554 adapter->portnum = adapter->ahw->pci_func;
2555 err = qlcnic_83xx_init(adapter);
2556 if (err) {
2557 switch (err) {
2558 case -ENOTRECOVERABLE:
2559 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2560 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2561 goto err_out_free_hw;
2562 case -ENOMEM:
2563 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2564 goto err_out_free_hw;
2565 case -EOPNOTSUPP:
2566 dev_err(&pdev->dev, "Adapter initialization failed\n");
2567 goto err_out_free_hw;
2568 default:
2569 dev_err(&pdev->dev, "Adapter initialization failed. Driver will load in maintenance mode to recover the adapter using the application\n");
2570 goto err_out_maintenance_mode;
2571 }
2572 }
2573
2574 if (qlcnic_sriov_vf_check(adapter))
2575 return 0;
2576 } else {
2577 dev_err(&pdev->dev,
2578 "%s: failed. Please Reboot\n", __func__);
2579 err = -ENODEV;
2580 goto err_out_free_hw;
2581 }
2582
2583 if (qlcnic_read_mac_addr(adapter))
2584 dev_warn(&pdev->dev, "failed to read mac addr\n");
2585
2586 qlcnic_read_phys_port_id(adapter);
2587
2588 if (adapter->portnum == 0) {
2589 qlcnic_get_board_name(adapter, board_name);
2590
2591 pr_info("%s: %s Board Chip rev 0x%x\n",
2592 module_name(THIS_MODULE),
2593 board_name, adapter->ahw->revision_id);
2594 }
2595
2596 if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2597 !!qlcnic_use_msi)
2598 dev_warn(&pdev->dev,
2599 "Device does not support MSI interrupts\n");
2600
2601 if (qlcnic_82xx_check(adapter)) {
2602 err = qlcnic_dcb_enable(adapter->dcb);
2603 if (err) {
2604 qlcnic_dcb_free(adapter->dcb);
2605 dev_err(&pdev->dev, "Failed to enable DCB\n");
2606 goto err_out_free_hw;
2607 }
2608
2609 qlcnic_dcb_get_info(adapter->dcb);
2610 err = qlcnic_setup_intr(adapter);
2611
2612 if (err) {
2613 dev_err(&pdev->dev, "Failed to setup interrupt\n");
2614 goto err_out_disable_msi;
2615 }
2616 }
2617
2618 err = qlcnic_get_act_pci_func(adapter);
2619 if (err)
2620 goto err_out_disable_mbx_intr;
2621
2622 if (adapter->portnum == 0)
2623 qlcnic_set_drv_version(adapter);
2624
2625 err = qlcnic_setup_netdev(adapter, netdev);
2626 if (err)
2627 goto err_out_disable_mbx_intr;
2628
2629 pci_set_drvdata(pdev, adapter);
2630
2631 if (qlcnic_82xx_check(adapter))
2632 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2633 FW_POLL_DELAY);
2634
2635 switch (adapter->ahw->port_type) {
2636 case QLCNIC_GBE:
2637 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2638 adapter->netdev->name);
2639 break;
2640 case QLCNIC_XGBE:
2641 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2642 adapter->netdev->name);
2643 break;
2644 }
2645
2646 if (adapter->drv_mac_learn)
2647 qlcnic_alloc_lb_filters_mem(adapter);
2648
2649 qlcnic_add_sysfs(adapter);
2650 qlcnic_register_hwmon_dev(adapter);
2651 return 0;
2652
2653 err_out_disable_mbx_intr:
2654 if (qlcnic_83xx_check(adapter))
2655 qlcnic_83xx_free_mbx_intr(adapter);
2656
2657 err_out_disable_msi:
2658 qlcnic_teardown_intr(adapter);
2659 qlcnic_cancel_idc_work(adapter);
2660 qlcnic_clr_all_drv_state(adapter, 0);
2661
2662 err_out_free_hw:
2663 qlcnic_free_adapter_resources(adapter);
2664
2665 err_out_free_wq:
2666 destroy_workqueue(adapter->qlcnic_wq);
2667
2668 err_out_free_netdev:
2669 free_netdev(netdev);
2670
2671 err_out_iounmap:
2672 qlcnic_cleanup_pci_map(ahw);
2673
2674 err_out_free_hw_res:
2675 kfree(ahw);
2676
2677 err_out_free_res:
2678 pci_disable_pcie_error_reporting(pdev);
2679 pci_release_regions(pdev);
2680
2681 err_out_disable_pdev:
2682 pci_disable_device(pdev);
2683 return err;
2684
2685 err_out_maintenance_mode:
2686 set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2687 netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2688 netdev->ethtool_ops = &qlcnic_ethtool_failed_ops;
2689 ahw->port_type = QLCNIC_XGBE;
2690
2691 if (qlcnic_83xx_check(adapter))
2692 adapter->tgt_status_reg = NULL;
2693 else
2694 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2695
2696 err = register_netdev(netdev);
2697
2698 if (err) {
2699 dev_err(&pdev->dev, "Failed to register net device\n");
2700 qlcnic_clr_all_drv_state(adapter, 0);
2701 goto err_out_free_hw;
2702 }
2703
2704 pci_set_drvdata(pdev, adapter);
2705 qlcnic_add_sysfs(adapter);
2706
2707 return 0;
2708 }
2709
qlcnic_remove(struct pci_dev * pdev)2710 static void qlcnic_remove(struct pci_dev *pdev)
2711 {
2712 struct qlcnic_adapter *adapter;
2713 struct net_device *netdev;
2714 struct qlcnic_hardware_context *ahw;
2715
2716 adapter = pci_get_drvdata(pdev);
2717 if (adapter == NULL)
2718 return;
2719
2720 netdev = adapter->netdev;
2721
2722 qlcnic_cancel_idc_work(adapter);
2723 qlcnic_sriov_pf_disable(adapter);
2724 ahw = adapter->ahw;
2725
2726 unregister_netdev(netdev);
2727 qlcnic_sriov_cleanup(adapter);
2728
2729 if (qlcnic_83xx_check(adapter)) {
2730 qlcnic_83xx_initialize_nic(adapter, 0);
2731 cancel_delayed_work_sync(&adapter->idc_aen_work);
2732 qlcnic_83xx_free_mbx_intr(adapter);
2733 qlcnic_83xx_detach_mailbox_work(adapter);
2734 qlcnic_83xx_free_mailbox(ahw->mailbox);
2735 kfree(ahw->fw_info);
2736 }
2737
2738 qlcnic_dcb_free(adapter->dcb);
2739 qlcnic_detach(adapter);
2740 kfree(adapter->npars);
2741 kfree(adapter->eswitch);
2742
2743 if (qlcnic_82xx_check(adapter))
2744 qlcnic_clr_all_drv_state(adapter, 0);
2745
2746 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2747
2748 qlcnic_free_lb_filters_mem(adapter);
2749
2750 qlcnic_teardown_intr(adapter);
2751
2752 qlcnic_remove_sysfs(adapter);
2753
2754 qlcnic_unregister_hwmon_dev(adapter);
2755
2756 qlcnic_cleanup_pci_map(adapter->ahw);
2757
2758 qlcnic_release_firmware(adapter);
2759
2760 pci_disable_pcie_error_reporting(pdev);
2761 pci_release_regions(pdev);
2762 pci_disable_device(pdev);
2763
2764 if (adapter->qlcnic_wq) {
2765 destroy_workqueue(adapter->qlcnic_wq);
2766 adapter->qlcnic_wq = NULL;
2767 }
2768
2769 qlcnic_free_adapter_resources(adapter);
2770 kfree(ahw);
2771 free_netdev(netdev);
2772 }
2773
qlcnic_shutdown(struct pci_dev * pdev)2774 static void qlcnic_shutdown(struct pci_dev *pdev)
2775 {
2776 if (__qlcnic_shutdown(pdev))
2777 return;
2778
2779 pci_disable_device(pdev);
2780 }
2781
qlcnic_suspend(struct device * dev_d)2782 static int __maybe_unused qlcnic_suspend(struct device *dev_d)
2783 {
2784 return __qlcnic_shutdown(to_pci_dev(dev_d));
2785 }
2786
qlcnic_resume(struct device * dev_d)2787 static int __maybe_unused qlcnic_resume(struct device *dev_d)
2788 {
2789 struct qlcnic_adapter *adapter = dev_get_drvdata(dev_d);
2790
2791 return __qlcnic_resume(adapter);
2792 }
2793
qlcnic_open(struct net_device * netdev)2794 static int qlcnic_open(struct net_device *netdev)
2795 {
2796 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2797 int err;
2798
2799 if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2800 netdev_err(netdev, "%s: Device is in non-operational state\n",
2801 __func__);
2802
2803 return -EIO;
2804 }
2805
2806 netif_carrier_off(netdev);
2807
2808 err = qlcnic_attach(adapter);
2809 if (err)
2810 return err;
2811
2812 err = __qlcnic_up(adapter, netdev);
2813 if (err)
2814 qlcnic_detach(adapter);
2815
2816 return err;
2817 }
2818
2819 /*
2820 * qlcnic_close - Disables a network interface entry point
2821 */
qlcnic_close(struct net_device * netdev)2822 static int qlcnic_close(struct net_device *netdev)
2823 {
2824 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2825
2826 __qlcnic_down(adapter, netdev);
2827
2828 return 0;
2829 }
2830
2831 #define QLCNIC_VF_LB_BUCKET_SIZE 1
2832
qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter * adapter)2833 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2834 {
2835 void *head;
2836 int i;
2837 struct net_device *netdev = adapter->netdev;
2838 u32 filter_size = 0;
2839 u16 act_pci_func = 0;
2840
2841 if (adapter->fhash.fmax && adapter->fhash.fhead)
2842 return;
2843
2844 act_pci_func = adapter->ahw->total_nic_func;
2845 spin_lock_init(&adapter->mac_learn_lock);
2846 spin_lock_init(&adapter->rx_mac_learn_lock);
2847
2848 if (qlcnic_sriov_vf_check(adapter)) {
2849 filter_size = QLCNIC_83XX_SRIOV_VF_MAX_MAC - 1;
2850 adapter->fhash.fbucket_size = QLCNIC_VF_LB_BUCKET_SIZE;
2851 } else if (qlcnic_82xx_check(adapter)) {
2852 filter_size = QLCNIC_LB_MAX_FILTERS;
2853 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2854 } else {
2855 filter_size = QLC_83XX_LB_MAX_FILTERS;
2856 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2857 }
2858
2859 head = kcalloc(adapter->fhash.fbucket_size,
2860 sizeof(struct hlist_head), GFP_ATOMIC);
2861
2862 if (!head)
2863 return;
2864
2865 adapter->fhash.fmax = (filter_size / act_pci_func);
2866 adapter->fhash.fhead = head;
2867
2868 netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2869 act_pci_func, adapter->fhash.fmax);
2870
2871 for (i = 0; i < adapter->fhash.fbucket_size; i++)
2872 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2873
2874 adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2875
2876 head = kcalloc(adapter->rx_fhash.fbucket_size,
2877 sizeof(struct hlist_head), GFP_ATOMIC);
2878
2879 if (!head)
2880 return;
2881
2882 adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2883 adapter->rx_fhash.fhead = head;
2884
2885 for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2886 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2887 }
2888
qlcnic_free_lb_filters_mem(struct qlcnic_adapter * adapter)2889 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2890 {
2891 if (adapter->fhash.fmax)
2892 kfree(adapter->fhash.fhead);
2893
2894 adapter->fhash.fhead = NULL;
2895 adapter->fhash.fmax = 0;
2896
2897 if (adapter->rx_fhash.fmax)
2898 kfree(adapter->rx_fhash.fhead);
2899
2900 adapter->rx_fhash.fmax = 0;
2901 adapter->rx_fhash.fhead = NULL;
2902 }
2903
qlcnic_check_temp(struct qlcnic_adapter * adapter)2904 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2905 {
2906 struct net_device *netdev = adapter->netdev;
2907 u32 temp_state, temp_val, temp = 0;
2908 int rv = 0;
2909
2910 if (qlcnic_83xx_check(adapter))
2911 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2912
2913 if (qlcnic_82xx_check(adapter))
2914 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2915
2916 temp_state = qlcnic_get_temp_state(temp);
2917 temp_val = qlcnic_get_temp_val(temp);
2918
2919 if (temp_state == QLCNIC_TEMP_PANIC) {
2920 dev_err(&netdev->dev,
2921 "Device temperature %d degrees C exceeds"
2922 " maximum allowed. Hardware has been shut down.\n",
2923 temp_val);
2924 rv = 1;
2925 } else if (temp_state == QLCNIC_TEMP_WARN) {
2926 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2927 dev_err(&netdev->dev,
2928 "Device temperature %d degrees C "
2929 "exceeds operating range."
2930 " Immediate action needed.\n",
2931 temp_val);
2932 }
2933 } else {
2934 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2935 dev_info(&netdev->dev,
2936 "Device temperature is now %d degrees C"
2937 " in normal range.\n", temp_val);
2938 }
2939 }
2940 adapter->ahw->temp = temp_state;
2941 return rv;
2942 }
2943
dump_tx_ring_desc(struct qlcnic_host_tx_ring * tx_ring)2944 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2945 {
2946 int i;
2947
2948 for (i = 0; i < tx_ring->num_desc; i++) {
2949 pr_info("TX Desc: %d\n", i);
2950 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
2951 &tx_ring->desc_head[i],
2952 sizeof(struct cmd_desc_type0), true);
2953 }
2954 }
2955
qlcnic_dump_rings(struct qlcnic_adapter * adapter)2956 static void qlcnic_dump_rings(struct qlcnic_adapter *adapter)
2957 {
2958 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2959 struct net_device *netdev = adapter->netdev;
2960 struct qlcnic_host_rds_ring *rds_ring;
2961 struct qlcnic_host_sds_ring *sds_ring;
2962 struct qlcnic_host_tx_ring *tx_ring;
2963 int ring;
2964
2965 if (!netdev || !netif_running(netdev))
2966 return;
2967
2968 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2969 rds_ring = &recv_ctx->rds_rings[ring];
2970 if (!rds_ring)
2971 continue;
2972 netdev_info(netdev,
2973 "rds_ring=%d crb_rcv_producer=%d producer=%u num_desc=%u\n",
2974 ring, readl(rds_ring->crb_rcv_producer),
2975 rds_ring->producer, rds_ring->num_desc);
2976 }
2977
2978 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2979 sds_ring = &(recv_ctx->sds_rings[ring]);
2980 if (!sds_ring)
2981 continue;
2982 netdev_info(netdev,
2983 "sds_ring=%d crb_sts_consumer=%d consumer=%u crb_intr_mask=%d num_desc=%u\n",
2984 ring, readl(sds_ring->crb_sts_consumer),
2985 sds_ring->consumer, readl(sds_ring->crb_intr_mask),
2986 sds_ring->num_desc);
2987 }
2988
2989 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2990 tx_ring = &adapter->tx_ring[ring];
2991 if (!tx_ring)
2992 continue;
2993 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
2994 ring, tx_ring->ctx_id);
2995 netdev_info(netdev,
2996 "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
2997 tx_ring->tx_stats.xmit_finished,
2998 tx_ring->tx_stats.xmit_called,
2999 tx_ring->tx_stats.xmit_on,
3000 tx_ring->tx_stats.xmit_off);
3001
3002 if (tx_ring->crb_intr_mask)
3003 netdev_info(netdev, "crb_intr_mask=%d\n",
3004 readl(tx_ring->crb_intr_mask));
3005
3006 netdev_info(netdev,
3007 "hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
3008 readl(tx_ring->crb_cmd_producer),
3009 tx_ring->producer, tx_ring->sw_consumer,
3010 le32_to_cpu(*(tx_ring->hw_consumer)));
3011
3012 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
3013 tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
3014
3015 if (netif_msg_tx_err(adapter->ahw))
3016 dump_tx_ring_desc(tx_ring);
3017 }
3018
3019 }
3020
qlcnic_tx_timeout(struct net_device * netdev,unsigned int txqueue)3021 static void qlcnic_tx_timeout(struct net_device *netdev, unsigned int txqueue)
3022 {
3023 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3024
3025 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3026 return;
3027
3028 qlcnic_dump_rings(adapter);
3029
3030 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS ||
3031 netif_msg_tx_err(adapter->ahw)) {
3032 netdev_err(netdev, "Tx timeout, reset the adapter.\n");
3033 if (qlcnic_82xx_check(adapter))
3034 adapter->need_fw_reset = 1;
3035 else if (qlcnic_83xx_check(adapter))
3036 qlcnic_83xx_idc_request_reset(adapter,
3037 QLCNIC_FORCE_FW_DUMP_KEY);
3038 } else {
3039 netdev_err(netdev, "Tx timeout, reset adapter context.\n");
3040 adapter->ahw->reset_context = 1;
3041 }
3042 }
3043
qlcnic_get_stats(struct net_device * netdev)3044 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3045 {
3046 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3047 struct net_device_stats *stats = &netdev->stats;
3048
3049 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3050 qlcnic_update_stats(adapter);
3051
3052 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3053 stats->tx_packets = adapter->stats.xmitfinished;
3054 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3055 stats->tx_bytes = adapter->stats.txbytes;
3056 stats->rx_dropped = adapter->stats.rxdropped;
3057 stats->tx_dropped = adapter->stats.txdropped;
3058
3059 return stats;
3060 }
3061
qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter * adapter)3062 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3063 {
3064 u32 status;
3065
3066 status = readl(adapter->isr_int_vec);
3067
3068 if (!(status & adapter->ahw->int_vec_bit))
3069 return IRQ_NONE;
3070
3071 /* check interrupt state machine, to be sure */
3072 status = readl(adapter->crb_int_state_reg);
3073 if (!ISR_LEGACY_INT_TRIGGERED(status))
3074 return IRQ_NONE;
3075
3076 writel(0xffffffff, adapter->tgt_status_reg);
3077 /* read twice to ensure write is flushed */
3078 readl(adapter->isr_int_vec);
3079 readl(adapter->isr_int_vec);
3080
3081 return IRQ_HANDLED;
3082 }
3083
qlcnic_tmp_intr(int irq,void * data)3084 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3085 {
3086 struct qlcnic_host_sds_ring *sds_ring = data;
3087 struct qlcnic_adapter *adapter = sds_ring->adapter;
3088
3089 if (adapter->flags & QLCNIC_MSIX_ENABLED)
3090 goto done;
3091 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3092 writel(0xffffffff, adapter->tgt_status_reg);
3093 goto done;
3094 }
3095
3096 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3097 return IRQ_NONE;
3098
3099 done:
3100 adapter->ahw->diag_cnt++;
3101 qlcnic_enable_sds_intr(adapter, sds_ring);
3102 return IRQ_HANDLED;
3103 }
3104
qlcnic_intr(int irq,void * data)3105 static irqreturn_t qlcnic_intr(int irq, void *data)
3106 {
3107 struct qlcnic_host_sds_ring *sds_ring = data;
3108 struct qlcnic_adapter *adapter = sds_ring->adapter;
3109
3110 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3111 return IRQ_NONE;
3112
3113 napi_schedule(&sds_ring->napi);
3114
3115 return IRQ_HANDLED;
3116 }
3117
qlcnic_msi_intr(int irq,void * data)3118 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3119 {
3120 struct qlcnic_host_sds_ring *sds_ring = data;
3121 struct qlcnic_adapter *adapter = sds_ring->adapter;
3122
3123 /* clear interrupt */
3124 writel(0xffffffff, adapter->tgt_status_reg);
3125
3126 napi_schedule(&sds_ring->napi);
3127 return IRQ_HANDLED;
3128 }
3129
qlcnic_msix_intr(int irq,void * data)3130 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3131 {
3132 struct qlcnic_host_sds_ring *sds_ring = data;
3133
3134 napi_schedule(&sds_ring->napi);
3135 return IRQ_HANDLED;
3136 }
3137
qlcnic_msix_tx_intr(int irq,void * data)3138 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3139 {
3140 struct qlcnic_host_tx_ring *tx_ring = data;
3141
3142 napi_schedule(&tx_ring->napi);
3143 return IRQ_HANDLED;
3144 }
3145
3146 static void
qlcnic_idc_debug_info(struct qlcnic_adapter * adapter,u8 encoding)3147 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3148 {
3149 u32 val;
3150
3151 val = adapter->portnum & 0xf;
3152 val |= encoding << 7;
3153 val |= (jiffies - adapter->dev_rst_time) << 8;
3154
3155 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3156 adapter->dev_rst_time = jiffies;
3157 }
3158
3159 static int
qlcnic_set_drv_state(struct qlcnic_adapter * adapter,u8 state)3160 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3161 {
3162 u32 val;
3163
3164 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3165 state != QLCNIC_DEV_NEED_QUISCENT);
3166
3167 if (qlcnic_api_lock(adapter))
3168 return -EIO;
3169
3170 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3171
3172 if (state == QLCNIC_DEV_NEED_RESET)
3173 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3174 else if (state == QLCNIC_DEV_NEED_QUISCENT)
3175 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3176
3177 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3178
3179 qlcnic_api_unlock(adapter);
3180
3181 return 0;
3182 }
3183
3184 static int
qlcnic_clr_drv_state(struct qlcnic_adapter * adapter)3185 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3186 {
3187 u32 val;
3188
3189 if (qlcnic_api_lock(adapter))
3190 return -EBUSY;
3191
3192 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3193 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3194 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3195
3196 qlcnic_api_unlock(adapter);
3197
3198 return 0;
3199 }
3200
qlcnic_clr_all_drv_state(struct qlcnic_adapter * adapter,u8 failed)3201 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3202 {
3203 u32 val;
3204
3205 if (qlcnic_api_lock(adapter))
3206 goto err;
3207
3208 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3209 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3210 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3211
3212 if (failed) {
3213 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3214 QLCNIC_DEV_FAILED);
3215 dev_info(&adapter->pdev->dev,
3216 "Device state set to Failed. Please Reboot\n");
3217 } else if (!(val & 0x11111111))
3218 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3219 QLCNIC_DEV_COLD);
3220
3221 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3222 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3223 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3224
3225 qlcnic_api_unlock(adapter);
3226 err:
3227 adapter->fw_fail_cnt = 0;
3228 adapter->flags &= ~QLCNIC_FW_HANG;
3229 clear_bit(__QLCNIC_START_FW, &adapter->state);
3230 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3231 }
3232
3233 /* Grab api lock, before checking state */
3234 static int
qlcnic_check_drv_state(struct qlcnic_adapter * adapter)3235 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3236 {
3237 int act, state, active_mask;
3238 struct qlcnic_hardware_context *ahw = adapter->ahw;
3239
3240 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3241 act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3242
3243 if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3244 active_mask = (~(1 << (ahw->pci_func * 4)));
3245 act = act & active_mask;
3246 }
3247
3248 if (((state & 0x11111111) == (act & 0x11111111)) ||
3249 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3250 return 0;
3251 else
3252 return 1;
3253 }
3254
qlcnic_check_idc_ver(struct qlcnic_adapter * adapter)3255 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3256 {
3257 u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3258
3259 if (val != QLCNIC_DRV_IDC_VER) {
3260 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3261 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3262 }
3263
3264 return 0;
3265 }
3266
3267 static int
qlcnic_can_start_firmware(struct qlcnic_adapter * adapter)3268 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3269 {
3270 u32 val, prev_state;
3271 u8 dev_init_timeo = adapter->dev_init_timeo;
3272 u8 portnum = adapter->portnum;
3273 u8 ret;
3274
3275 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3276 return 1;
3277
3278 if (qlcnic_api_lock(adapter))
3279 return -1;
3280
3281 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3282 if (!(val & (1 << (portnum * 4)))) {
3283 QLC_DEV_SET_REF_CNT(val, portnum);
3284 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3285 }
3286
3287 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3288 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3289
3290 switch (prev_state) {
3291 case QLCNIC_DEV_COLD:
3292 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3293 QLCNIC_DEV_INITIALIZING);
3294 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3295 QLCNIC_DRV_IDC_VER);
3296 qlcnic_idc_debug_info(adapter, 0);
3297 qlcnic_api_unlock(adapter);
3298 return 1;
3299
3300 case QLCNIC_DEV_READY:
3301 ret = qlcnic_check_idc_ver(adapter);
3302 qlcnic_api_unlock(adapter);
3303 return ret;
3304
3305 case QLCNIC_DEV_NEED_RESET:
3306 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3307 QLC_DEV_SET_RST_RDY(val, portnum);
3308 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3309 break;
3310
3311 case QLCNIC_DEV_NEED_QUISCENT:
3312 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3313 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3314 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3315 break;
3316
3317 case QLCNIC_DEV_FAILED:
3318 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3319 qlcnic_api_unlock(adapter);
3320 return -1;
3321
3322 case QLCNIC_DEV_INITIALIZING:
3323 case QLCNIC_DEV_QUISCENT:
3324 break;
3325 }
3326
3327 qlcnic_api_unlock(adapter);
3328
3329 do {
3330 msleep(1000);
3331 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3332 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3333
3334 if (!dev_init_timeo) {
3335 dev_err(&adapter->pdev->dev,
3336 "Waiting for device to initialize timeout\n");
3337 return -1;
3338 }
3339
3340 if (qlcnic_api_lock(adapter))
3341 return -1;
3342
3343 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3344 QLC_DEV_CLR_RST_QSCNT(val, portnum);
3345 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3346
3347 ret = qlcnic_check_idc_ver(adapter);
3348 qlcnic_api_unlock(adapter);
3349
3350 return ret;
3351 }
3352
3353 static void
qlcnic_fwinit_work(struct work_struct * work)3354 qlcnic_fwinit_work(struct work_struct *work)
3355 {
3356 struct qlcnic_adapter *adapter = container_of(work,
3357 struct qlcnic_adapter, fw_work.work);
3358 u32 dev_state = 0xf;
3359 u32 val;
3360
3361 if (qlcnic_api_lock(adapter))
3362 goto err_ret;
3363
3364 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3365 if (dev_state == QLCNIC_DEV_QUISCENT ||
3366 dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3367 qlcnic_api_unlock(adapter);
3368 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3369 FW_POLL_DELAY * 2);
3370 return;
3371 }
3372
3373 if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3374 qlcnic_api_unlock(adapter);
3375 goto wait_npar;
3376 }
3377
3378 if (dev_state == QLCNIC_DEV_INITIALIZING ||
3379 dev_state == QLCNIC_DEV_READY) {
3380 dev_info(&adapter->pdev->dev, "Detected state change from "
3381 "DEV_NEED_RESET, skipping ack check\n");
3382 goto skip_ack_check;
3383 }
3384
3385 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3386 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3387 adapter->reset_ack_timeo);
3388 goto skip_ack_check;
3389 }
3390
3391 if (!qlcnic_check_drv_state(adapter)) {
3392 skip_ack_check:
3393 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3394
3395 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3396 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3397 QLCNIC_DEV_INITIALIZING);
3398 set_bit(__QLCNIC_START_FW, &adapter->state);
3399 QLCDB(adapter, DRV, "Restarting fw\n");
3400 qlcnic_idc_debug_info(adapter, 0);
3401 val = QLC_SHARED_REG_RD32(adapter,
3402 QLCNIC_CRB_DRV_STATE);
3403 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3404 QLC_SHARED_REG_WR32(adapter,
3405 QLCNIC_CRB_DRV_STATE, val);
3406 }
3407
3408 qlcnic_api_unlock(adapter);
3409
3410 rtnl_lock();
3411 if (qlcnic_check_fw_dump_state(adapter) &&
3412 (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3413 QLCDB(adapter, DRV, "Take FW dump\n");
3414 qlcnic_dump_fw(adapter);
3415 adapter->flags |= QLCNIC_FW_HANG;
3416 }
3417 rtnl_unlock();
3418
3419 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3420 if (!adapter->nic_ops->start_firmware(adapter)) {
3421 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3422 adapter->fw_wait_cnt = 0;
3423 return;
3424 }
3425 goto err_ret;
3426 }
3427
3428 qlcnic_api_unlock(adapter);
3429
3430 wait_npar:
3431 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3432 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3433
3434 switch (dev_state) {
3435 case QLCNIC_DEV_READY:
3436 if (!qlcnic_start_firmware(adapter)) {
3437 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3438 adapter->fw_wait_cnt = 0;
3439 return;
3440 }
3441 break;
3442 case QLCNIC_DEV_FAILED:
3443 break;
3444 default:
3445 qlcnic_schedule_work(adapter,
3446 qlcnic_fwinit_work, FW_POLL_DELAY);
3447 return;
3448 }
3449
3450 err_ret:
3451 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3452 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3453 netif_device_attach(adapter->netdev);
3454 qlcnic_clr_all_drv_state(adapter, 0);
3455 }
3456
3457 static void
qlcnic_detach_work(struct work_struct * work)3458 qlcnic_detach_work(struct work_struct *work)
3459 {
3460 struct qlcnic_adapter *adapter = container_of(work,
3461 struct qlcnic_adapter, fw_work.work);
3462 struct net_device *netdev = adapter->netdev;
3463 u32 status;
3464
3465 netif_device_detach(netdev);
3466
3467 /* Dont grab rtnl lock during Quiscent mode */
3468 if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3469 if (netif_running(netdev))
3470 __qlcnic_down(adapter, netdev);
3471 } else
3472 qlcnic_down(adapter, netdev);
3473
3474 status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3475
3476 if (status & QLCNIC_RCODE_FATAL_ERROR) {
3477 dev_err(&adapter->pdev->dev,
3478 "Detaching the device: peg halt status1=0x%x\n",
3479 status);
3480
3481 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3482 dev_err(&adapter->pdev->dev,
3483 "On board active cooling fan failed. "
3484 "Device has been halted.\n");
3485 dev_err(&adapter->pdev->dev,
3486 "Replace the adapter.\n");
3487 }
3488
3489 goto err_ret;
3490 }
3491
3492 if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3493 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3494 adapter->ahw->temp);
3495 goto err_ret;
3496 }
3497
3498 /* Dont ack if this instance is the reset owner */
3499 if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3500 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3501 dev_err(&adapter->pdev->dev,
3502 "Failed to set driver state,"
3503 "detaching the device.\n");
3504 goto err_ret;
3505 }
3506 }
3507
3508 adapter->fw_wait_cnt = 0;
3509
3510 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3511
3512 return;
3513
3514 err_ret:
3515 netif_device_attach(netdev);
3516 qlcnic_clr_all_drv_state(adapter, 1);
3517 }
3518
3519 /*Transit NPAR state to NON Operational */
3520 static void
qlcnic_set_npar_non_operational(struct qlcnic_adapter * adapter)3521 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3522 {
3523 u32 state;
3524
3525 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3526 if (state == QLCNIC_DEV_NPAR_NON_OPER)
3527 return;
3528
3529 if (qlcnic_api_lock(adapter))
3530 return;
3531 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3532 QLCNIC_DEV_NPAR_NON_OPER);
3533 qlcnic_api_unlock(adapter);
3534 }
3535
qlcnic_82xx_dev_request_reset(struct qlcnic_adapter * adapter,u32 key)3536 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3537 u32 key)
3538 {
3539 u32 state, xg_val = 0, gb_val = 0;
3540
3541 qlcnic_xg_set_xg0_mask(xg_val);
3542 qlcnic_xg_set_xg1_mask(xg_val);
3543 QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3544 qlcnic_gb_set_gb0_mask(gb_val);
3545 qlcnic_gb_set_gb1_mask(gb_val);
3546 qlcnic_gb_set_gb2_mask(gb_val);
3547 qlcnic_gb_set_gb3_mask(gb_val);
3548 QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3549 dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3550 " on all ports\n");
3551 adapter->need_fw_reset = 1;
3552
3553 if (qlcnic_api_lock(adapter))
3554 return;
3555
3556 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3557
3558 if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3559 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3560 __func__);
3561 qlcnic_api_unlock(adapter);
3562
3563 return;
3564 }
3565
3566 if (state == QLCNIC_DEV_READY) {
3567 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3568 QLCNIC_DEV_NEED_RESET);
3569 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3570 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3571 qlcnic_idc_debug_info(adapter, 0);
3572 }
3573
3574 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3575 QLCNIC_DEV_NPAR_NON_OPER);
3576 qlcnic_api_unlock(adapter);
3577 }
3578
3579 /* Transit to NPAR READY state from NPAR NOT READY state */
3580 static void
qlcnic_dev_set_npar_ready(struct qlcnic_adapter * adapter)3581 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3582 {
3583 if (qlcnic_api_lock(adapter))
3584 return;
3585
3586 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3587 QLCNIC_DEV_NPAR_OPER);
3588 QLCDB(adapter, DRV, "NPAR operational state set\n");
3589
3590 qlcnic_api_unlock(adapter);
3591 }
3592
qlcnic_schedule_work(struct qlcnic_adapter * adapter,work_func_t func,int delay)3593 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3594 work_func_t func, int delay)
3595 {
3596 if (test_bit(__QLCNIC_AER, &adapter->state))
3597 return;
3598
3599 INIT_DELAYED_WORK(&adapter->fw_work, func);
3600 queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3601 round_jiffies_relative(delay));
3602 }
3603
3604 static void
qlcnic_attach_work(struct work_struct * work)3605 qlcnic_attach_work(struct work_struct *work)
3606 {
3607 struct qlcnic_adapter *adapter = container_of(work,
3608 struct qlcnic_adapter, fw_work.work);
3609 struct net_device *netdev = adapter->netdev;
3610 u32 npar_state;
3611
3612 if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3613 npar_state = QLC_SHARED_REG_RD32(adapter,
3614 QLCNIC_CRB_DEV_NPAR_STATE);
3615 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3616 qlcnic_clr_all_drv_state(adapter, 0);
3617 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3618 qlcnic_schedule_work(adapter, qlcnic_attach_work,
3619 FW_POLL_DELAY);
3620 else
3621 goto attach;
3622 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3623 return;
3624 }
3625 attach:
3626 qlcnic_dcb_get_info(adapter->dcb);
3627
3628 if (netif_running(netdev)) {
3629 if (qlcnic_up(adapter, netdev))
3630 goto done;
3631
3632 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3633 }
3634
3635 done:
3636 netif_device_attach(netdev);
3637 adapter->fw_fail_cnt = 0;
3638 adapter->flags &= ~QLCNIC_FW_HANG;
3639 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3640 if (adapter->portnum == 0)
3641 qlcnic_set_drv_version(adapter);
3642
3643 if (!qlcnic_clr_drv_state(adapter))
3644 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3645 FW_POLL_DELAY);
3646 }
3647
3648 static int
qlcnic_check_health(struct qlcnic_adapter * adapter)3649 qlcnic_check_health(struct qlcnic_adapter *adapter)
3650 {
3651 struct qlcnic_hardware_context *ahw = adapter->ahw;
3652 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3653 u32 state = 0, heartbeat;
3654 u32 peg_status;
3655 int err = 0;
3656
3657 if (qlcnic_check_temp(adapter))
3658 goto detach;
3659
3660 if (adapter->need_fw_reset)
3661 qlcnic_dev_request_reset(adapter, 0);
3662
3663 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3664 if (state == QLCNIC_DEV_NEED_RESET) {
3665 qlcnic_set_npar_non_operational(adapter);
3666 adapter->need_fw_reset = 1;
3667 } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3668 goto detach;
3669
3670 heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3671 if (heartbeat != adapter->heartbeat) {
3672 adapter->heartbeat = heartbeat;
3673 adapter->fw_fail_cnt = 0;
3674 if (adapter->need_fw_reset)
3675 goto detach;
3676
3677 if (ahw->reset_context && qlcnic_auto_fw_reset)
3678 qlcnic_reset_hw_context(adapter);
3679
3680 return 0;
3681 }
3682
3683 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3684 return 0;
3685
3686 adapter->flags |= QLCNIC_FW_HANG;
3687
3688 qlcnic_dev_request_reset(adapter, 0);
3689
3690 if (qlcnic_auto_fw_reset)
3691 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3692
3693 dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3694 peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3695 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3696 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3697 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3698 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3699 "PEG_NET_4_PC: 0x%x\n",
3700 peg_status,
3701 QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3702 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3703 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3704 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3705 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3706 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3707 if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3708 dev_err(&adapter->pdev->dev,
3709 "Firmware aborted with error code 0x00006700. "
3710 "Device is being reset.\n");
3711 detach:
3712 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3713 QLCNIC_DEV_NEED_RESET;
3714
3715 if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3716 &adapter->state)) {
3717
3718 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3719 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3720 } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3721 adapter->flags & QLCNIC_FW_RESET_OWNER) {
3722 qlcnic_dump_fw(adapter);
3723 }
3724
3725 return 1;
3726 }
3727
qlcnic_fw_poll_work(struct work_struct * work)3728 void qlcnic_fw_poll_work(struct work_struct *work)
3729 {
3730 struct qlcnic_adapter *adapter = container_of(work,
3731 struct qlcnic_adapter, fw_work.work);
3732
3733 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3734 goto reschedule;
3735
3736
3737 if (qlcnic_check_health(adapter))
3738 return;
3739
3740 if (adapter->fhash.fnum)
3741 qlcnic_prune_lb_filters(adapter);
3742
3743 reschedule:
3744 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3745 }
3746
qlcnic_is_first_func(struct pci_dev * pdev)3747 static int qlcnic_is_first_func(struct pci_dev *pdev)
3748 {
3749 struct pci_dev *oth_pdev;
3750 int val = pdev->devfn;
3751
3752 while (val-- > 0) {
3753 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3754 (pdev->bus), pdev->bus->number,
3755 PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3756 if (!oth_pdev)
3757 continue;
3758
3759 if (oth_pdev->current_state != PCI_D3cold) {
3760 pci_dev_put(oth_pdev);
3761 return 0;
3762 }
3763 pci_dev_put(oth_pdev);
3764 }
3765 return 1;
3766 }
3767
qlcnic_attach_func(struct pci_dev * pdev)3768 static int qlcnic_attach_func(struct pci_dev *pdev)
3769 {
3770 int err, first_func;
3771 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3772 struct net_device *netdev = adapter->netdev;
3773
3774 pdev->error_state = pci_channel_io_normal;
3775
3776 err = pci_enable_device(pdev);
3777 if (err)
3778 return err;
3779
3780 pci_set_master(pdev);
3781 pci_restore_state(pdev);
3782
3783 first_func = qlcnic_is_first_func(pdev);
3784
3785 if (qlcnic_api_lock(adapter))
3786 return -EINVAL;
3787
3788 if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3789 adapter->need_fw_reset = 1;
3790 set_bit(__QLCNIC_START_FW, &adapter->state);
3791 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3792 QLCNIC_DEV_INITIALIZING);
3793 QLCDB(adapter, DRV, "Restarting fw\n");
3794 }
3795 qlcnic_api_unlock(adapter);
3796
3797 err = qlcnic_start_firmware(adapter);
3798 if (err)
3799 return err;
3800
3801 qlcnic_clr_drv_state(adapter);
3802 kfree(adapter->msix_entries);
3803 adapter->msix_entries = NULL;
3804 err = qlcnic_setup_intr(adapter);
3805
3806 if (err) {
3807 kfree(adapter->msix_entries);
3808 netdev_err(netdev, "failed to setup interrupt\n");
3809 return err;
3810 }
3811
3812 if (netif_running(netdev)) {
3813 err = qlcnic_attach(adapter);
3814 if (err) {
3815 qlcnic_clr_all_drv_state(adapter, 1);
3816 clear_bit(__QLCNIC_AER, &adapter->state);
3817 netif_device_attach(netdev);
3818 return err;
3819 }
3820
3821 err = qlcnic_up(adapter, netdev);
3822 if (err)
3823 goto done;
3824
3825 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3826 }
3827 done:
3828 netif_device_attach(netdev);
3829 return err;
3830 }
3831
qlcnic_82xx_io_error_detected(struct pci_dev * pdev,pci_channel_state_t state)3832 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3833 pci_channel_state_t state)
3834 {
3835 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3836 struct net_device *netdev = adapter->netdev;
3837
3838 if (state == pci_channel_io_perm_failure)
3839 return PCI_ERS_RESULT_DISCONNECT;
3840
3841 if (state == pci_channel_io_normal)
3842 return PCI_ERS_RESULT_RECOVERED;
3843
3844 set_bit(__QLCNIC_AER, &adapter->state);
3845 netif_device_detach(netdev);
3846
3847 cancel_delayed_work_sync(&adapter->fw_work);
3848
3849 if (netif_running(netdev))
3850 qlcnic_down(adapter, netdev);
3851
3852 qlcnic_detach(adapter);
3853 qlcnic_teardown_intr(adapter);
3854
3855 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3856
3857 pci_save_state(pdev);
3858 pci_disable_device(pdev);
3859
3860 return PCI_ERS_RESULT_NEED_RESET;
3861 }
3862
qlcnic_82xx_io_slot_reset(struct pci_dev * pdev)3863 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3864 {
3865 pci_ers_result_t res;
3866
3867 rtnl_lock();
3868 res = qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3869 PCI_ERS_RESULT_RECOVERED;
3870 rtnl_unlock();
3871
3872 return res;
3873 }
3874
qlcnic_82xx_io_resume(struct pci_dev * pdev)3875 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3876 {
3877 u32 state;
3878 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3879
3880 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3881 if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3882 &adapter->state))
3883 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3884 FW_POLL_DELAY);
3885 }
3886
qlcnic_io_error_detected(struct pci_dev * pdev,pci_channel_state_t state)3887 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3888 pci_channel_state_t state)
3889 {
3890 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3891 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3892
3893 if (hw_ops->io_error_detected) {
3894 return hw_ops->io_error_detected(pdev, state);
3895 } else {
3896 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3897 return PCI_ERS_RESULT_DISCONNECT;
3898 }
3899 }
3900
qlcnic_io_slot_reset(struct pci_dev * pdev)3901 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3902 {
3903 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3904 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3905
3906 if (hw_ops->io_slot_reset) {
3907 return hw_ops->io_slot_reset(pdev);
3908 } else {
3909 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3910 return PCI_ERS_RESULT_DISCONNECT;
3911 }
3912 }
3913
qlcnic_io_resume(struct pci_dev * pdev)3914 static void qlcnic_io_resume(struct pci_dev *pdev)
3915 {
3916 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3917 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3918
3919 if (hw_ops->io_resume)
3920 hw_ops->io_resume(pdev);
3921 else
3922 dev_err(&pdev->dev, "AER resume handler not registered.\n");
3923 }
3924
3925
3926 static int
qlcnicvf_start_firmware(struct qlcnic_adapter * adapter)3927 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3928 {
3929 int err;
3930
3931 err = qlcnic_can_start_firmware(adapter);
3932 if (err)
3933 return err;
3934
3935 err = qlcnic_check_npar_opertional(adapter);
3936 if (err)
3937 return err;
3938
3939 err = qlcnic_initialize_nic(adapter);
3940 if (err)
3941 return err;
3942
3943 qlcnic_check_options(adapter);
3944
3945 err = qlcnic_set_eswitch_port_config(adapter);
3946 if (err)
3947 return err;
3948
3949 adapter->need_fw_reset = 0;
3950
3951 return err;
3952 }
3953
qlcnic_validate_rings(struct qlcnic_adapter * adapter,__u32 ring_cnt,int queue_type)3954 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
3955 int queue_type)
3956 {
3957 struct net_device *netdev = adapter->netdev;
3958 char buf[8];
3959
3960 if (queue_type == QLCNIC_RX_QUEUE)
3961 strcpy(buf, "SDS");
3962 else
3963 strcpy(buf, "Tx");
3964
3965 if (!is_power_of_2(ring_cnt)) {
3966 netdev_err(netdev, "%s rings value should be a power of 2\n",
3967 buf);
3968 return -EINVAL;
3969 }
3970
3971 if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
3972 !qlcnic_check_multi_tx(adapter)) {
3973 netdev_err(netdev, "No Multi Tx queue support\n");
3974 return -EINVAL;
3975 }
3976
3977 if (ring_cnt > num_online_cpus()) {
3978 netdev_err(netdev,
3979 "%s value[%u] should not be higher than, number of online CPUs\n",
3980 buf, num_online_cpus());
3981 return -EINVAL;
3982 }
3983
3984 return 0;
3985 }
3986
qlcnic_setup_rings(struct qlcnic_adapter * adapter)3987 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
3988 {
3989 struct net_device *netdev = adapter->netdev;
3990 u8 tx_rings, rx_rings;
3991 int err;
3992
3993 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3994 return -EBUSY;
3995
3996 tx_rings = adapter->drv_tss_rings;
3997 rx_rings = adapter->drv_rss_rings;
3998
3999 netif_device_detach(netdev);
4000
4001 err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings);
4002 if (err)
4003 goto done;
4004
4005 if (netif_running(netdev))
4006 __qlcnic_down(adapter, netdev);
4007
4008 qlcnic_detach(adapter);
4009
4010 if (qlcnic_83xx_check(adapter)) {
4011 qlcnic_83xx_free_mbx_intr(adapter);
4012 qlcnic_83xx_enable_mbx_poll(adapter);
4013 }
4014
4015 qlcnic_teardown_intr(adapter);
4016
4017 err = qlcnic_setup_intr(adapter);
4018 if (err) {
4019 kfree(adapter->msix_entries);
4020 netdev_err(netdev, "failed to setup interrupt\n");
4021 return err;
4022 }
4023
4024 /* Check if we need to update real_num_{tx|rx}_queues because
4025 * qlcnic_setup_intr() may change Tx/Rx rings size
4026 */
4027 if ((tx_rings != adapter->drv_tx_rings) ||
4028 (rx_rings != adapter->drv_sds_rings)) {
4029 err = qlcnic_set_real_num_queues(adapter,
4030 adapter->drv_tx_rings,
4031 adapter->drv_sds_rings);
4032 if (err)
4033 goto done;
4034 }
4035
4036 if (qlcnic_83xx_check(adapter)) {
4037 qlcnic_83xx_initialize_nic(adapter, 1);
4038 err = qlcnic_83xx_setup_mbx_intr(adapter);
4039 qlcnic_83xx_disable_mbx_poll(adapter);
4040 if (err) {
4041 dev_err(&adapter->pdev->dev,
4042 "failed to setup mbx interrupt\n");
4043 goto done;
4044 }
4045 }
4046
4047 if (netif_running(netdev)) {
4048 err = qlcnic_attach(adapter);
4049 if (err)
4050 goto done;
4051 err = __qlcnic_up(adapter, netdev);
4052 if (err)
4053 goto done;
4054 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4055 }
4056 done:
4057 netif_device_attach(netdev);
4058 clear_bit(__QLCNIC_RESETTING, &adapter->state);
4059 return err;
4060 }
4061
4062 #ifdef CONFIG_INET
4063
4064 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4065
4066 static void
qlcnic_config_indev_addr(struct qlcnic_adapter * adapter,struct net_device * dev,unsigned long event)4067 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4068 struct net_device *dev, unsigned long event)
4069 {
4070 const struct in_ifaddr *ifa;
4071 struct in_device *indev;
4072
4073 indev = in_dev_get(dev);
4074 if (!indev)
4075 return;
4076
4077 in_dev_for_each_ifa_rtnl(ifa, indev) {
4078 switch (event) {
4079 case NETDEV_UP:
4080 qlcnic_config_ipaddr(adapter,
4081 ifa->ifa_address, QLCNIC_IP_UP);
4082 break;
4083 case NETDEV_DOWN:
4084 qlcnic_config_ipaddr(adapter,
4085 ifa->ifa_address, QLCNIC_IP_DOWN);
4086 break;
4087 default:
4088 break;
4089 }
4090 }
4091
4092 in_dev_put(indev);
4093 }
4094
qlcnic_restore_indev_addr(struct net_device * netdev,unsigned long event)4095 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4096 {
4097 struct qlcnic_adapter *adapter = netdev_priv(netdev);
4098 struct net_device *dev;
4099 u16 vid;
4100
4101 qlcnic_config_indev_addr(adapter, netdev, event);
4102
4103 rcu_read_lock();
4104 for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4105 dev = __vlan_find_dev_deep_rcu(netdev, htons(ETH_P_8021Q), vid);
4106 if (!dev)
4107 continue;
4108 qlcnic_config_indev_addr(adapter, dev, event);
4109 }
4110 rcu_read_unlock();
4111 }
4112
qlcnic_netdev_event(struct notifier_block * this,unsigned long event,void * ptr)4113 static int qlcnic_netdev_event(struct notifier_block *this,
4114 unsigned long event, void *ptr)
4115 {
4116 struct qlcnic_adapter *adapter;
4117 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4118
4119 recheck:
4120 if (dev == NULL)
4121 goto done;
4122
4123 if (is_vlan_dev(dev)) {
4124 dev = vlan_dev_real_dev(dev);
4125 goto recheck;
4126 }
4127
4128 if (!is_qlcnic_netdev(dev))
4129 goto done;
4130
4131 adapter = netdev_priv(dev);
4132
4133 if (!adapter)
4134 goto done;
4135
4136 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4137 goto done;
4138
4139 qlcnic_config_indev_addr(adapter, dev, event);
4140 done:
4141 return NOTIFY_DONE;
4142 }
4143
4144 static int
qlcnic_inetaddr_event(struct notifier_block * this,unsigned long event,void * ptr)4145 qlcnic_inetaddr_event(struct notifier_block *this,
4146 unsigned long event, void *ptr)
4147 {
4148 struct qlcnic_adapter *adapter;
4149 struct net_device *dev;
4150
4151 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4152
4153 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4154
4155 recheck:
4156 if (dev == NULL)
4157 goto done;
4158
4159 if (is_vlan_dev(dev)) {
4160 dev = vlan_dev_real_dev(dev);
4161 goto recheck;
4162 }
4163
4164 if (!is_qlcnic_netdev(dev))
4165 goto done;
4166
4167 adapter = netdev_priv(dev);
4168
4169 if (!adapter)
4170 goto done;
4171
4172 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4173 goto done;
4174
4175 switch (event) {
4176 case NETDEV_UP:
4177 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4178
4179 break;
4180 case NETDEV_DOWN:
4181 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4182
4183 break;
4184 default:
4185 break;
4186 }
4187
4188 done:
4189 return NOTIFY_DONE;
4190 }
4191
4192 static struct notifier_block qlcnic_netdev_cb = {
4193 .notifier_call = qlcnic_netdev_event,
4194 };
4195
4196 static struct notifier_block qlcnic_inetaddr_cb = {
4197 .notifier_call = qlcnic_inetaddr_event,
4198 };
4199 #else
qlcnic_restore_indev_addr(struct net_device * dev,unsigned long event)4200 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4201 { }
4202 #endif
4203 static const struct pci_error_handlers qlcnic_err_handler = {
4204 .error_detected = qlcnic_io_error_detected,
4205 .slot_reset = qlcnic_io_slot_reset,
4206 .resume = qlcnic_io_resume,
4207 };
4208
4209 static SIMPLE_DEV_PM_OPS(qlcnic_pm_ops, qlcnic_suspend, qlcnic_resume);
4210
4211 static struct pci_driver qlcnic_driver = {
4212 .name = qlcnic_driver_name,
4213 .id_table = qlcnic_pci_tbl,
4214 .probe = qlcnic_probe,
4215 .remove = qlcnic_remove,
4216 .driver.pm = &qlcnic_pm_ops,
4217 .shutdown = qlcnic_shutdown,
4218 .err_handler = &qlcnic_err_handler,
4219 #ifdef CONFIG_QLCNIC_SRIOV
4220 .sriov_configure = qlcnic_pci_sriov_configure,
4221 #endif
4222
4223 };
4224
qlcnic_init_module(void)4225 static int __init qlcnic_init_module(void)
4226 {
4227 int ret;
4228
4229 printk(KERN_INFO "%s\n", qlcnic_driver_string);
4230
4231 #ifdef CONFIG_INET
4232 register_netdevice_notifier(&qlcnic_netdev_cb);
4233 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4234 #endif
4235
4236 ret = pci_register_driver(&qlcnic_driver);
4237 if (ret) {
4238 #ifdef CONFIG_INET
4239 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4240 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4241 #endif
4242 }
4243
4244 return ret;
4245 }
4246
4247 module_init(qlcnic_init_module);
4248
qlcnic_exit_module(void)4249 static void __exit qlcnic_exit_module(void)
4250 {
4251 pci_unregister_driver(&qlcnic_driver);
4252
4253 #ifdef CONFIG_INET
4254 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4255 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4256 #endif
4257 }
4258
4259 module_exit(qlcnic_exit_module);
4260