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