1 /*
2 * QLogic qlcnic NIC Driver
3 * Copyright (c) 2009-2013 QLogic Corporation
4 *
5 * See LICENSE.qlcnic for copyright and licensing details.
6 */
7
8 #include <linux/vmalloc.h>
9 #include <linux/interrupt.h>
10 #include <linux/swab.h>
11 #include <linux/dma-mapping.h>
12 #include <linux/if_vlan.h>
13 #include <net/ip.h>
14 #include <linux/ipv6.h>
15 #include <linux/inetdevice.h>
16 #include <linux/aer.h>
17 #include <linux/log2.h>
18 #include <linux/pci.h>
19 #ifdef CONFIG_QLCNIC_VXLAN
20 #include <net/vxlan.h>
21 #endif
22
23 #include "qlcnic.h"
24 #include "qlcnic_sriov.h"
25 #include "qlcnic_hw.h"
26
27 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
28 MODULE_LICENSE("GPL");
29 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
30 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
31
32 char qlcnic_driver_name[] = "qlcnic";
33 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
34 "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
35
36 static int qlcnic_mac_learn;
37 module_param(qlcnic_mac_learn, int, 0444);
38 MODULE_PARM_DESC(qlcnic_mac_learn,
39 "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
40
41 int qlcnic_use_msi = 1;
42 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
43 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
44
45 int qlcnic_use_msi_x = 1;
46 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
47 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
48
49 int qlcnic_auto_fw_reset = 1;
50 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
51 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
52
53 int qlcnic_load_fw_file;
54 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)");
55 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
56
57 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
58 static void qlcnic_remove(struct pci_dev *pdev);
59 static int qlcnic_open(struct net_device *netdev);
60 static int qlcnic_close(struct net_device *netdev);
61 static void qlcnic_tx_timeout(struct net_device *netdev);
62 static void qlcnic_attach_work(struct work_struct *work);
63 static void qlcnic_fwinit_work(struct work_struct *work);
64 #ifdef CONFIG_NET_POLL_CONTROLLER
65 static void qlcnic_poll_controller(struct net_device *netdev);
66 #endif
67
68 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
69 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
70
71 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
72 static irqreturn_t qlcnic_intr(int irq, void *data);
73 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
74 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
75 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
76
77 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
78 static int qlcnic_start_firmware(struct qlcnic_adapter *);
79
80 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
81 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
82 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
83 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
84 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
85
86 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *);
87 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *, u32);
88 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *);
89 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *);
90 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *);
91 static void qlcnic_82xx_io_resume(struct pci_dev *);
92 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *);
93 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *,
94 pci_channel_state_t);
qlcnic_vlan_tx_check(struct qlcnic_adapter * adapter)95 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
96 {
97 struct qlcnic_hardware_context *ahw = adapter->ahw;
98
99 if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
100 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
101 else
102 return 1;
103 }
104
105 /* PCI Device ID Table */
106 #define ENTRY(device) \
107 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
108 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
109
110 static const struct pci_device_id qlcnic_pci_tbl[] = {
111 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
112 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
113 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
114 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE8830),
115 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE8C30),
116 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE844X),
117 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE844X),
118 {0,}
119 };
120
121 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
122
123
qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring * tx_ring)124 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
125 {
126 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
127 }
128
129 static const u32 msi_tgt_status[8] = {
130 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
131 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
132 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
133 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
134 };
135
136 static const u32 qlcnic_reg_tbl[] = {
137 0x1B20A8, /* PEG_HALT_STAT1 */
138 0x1B20AC, /* PEG_HALT_STAT2 */
139 0x1B20B0, /* FW_HEARTBEAT */
140 0x1B2100, /* LOCK ID */
141 0x1B2128, /* FW_CAPABILITIES */
142 0x1B2138, /* drv active */
143 0x1B2140, /* dev state */
144 0x1B2144, /* drv state */
145 0x1B2148, /* drv scratch */
146 0x1B214C, /* dev partition info */
147 0x1B2174, /* drv idc ver */
148 0x1B2150, /* fw version major */
149 0x1B2154, /* fw version minor */
150 0x1B2158, /* fw version sub */
151 0x1B219C, /* npar state */
152 0x1B21FC, /* FW_IMG_VALID */
153 0x1B2250, /* CMD_PEG_STATE */
154 0x1B233C, /* RCV_PEG_STATE */
155 0x1B23B4, /* ASIC TEMP */
156 0x1B216C, /* FW api */
157 0x1B2170, /* drv op mode */
158 0x13C010, /* flash lock */
159 0x13C014, /* flash unlock */
160 };
161
162 static const struct qlcnic_board_info qlcnic_boards[] = {
163 { PCI_VENDOR_ID_QLOGIC,
164 PCI_DEVICE_ID_QLOGIC_QLE844X,
165 0x0,
166 0x0,
167 "8400 series 10GbE Converged Network Adapter (TCP/IP Networking)" },
168 { PCI_VENDOR_ID_QLOGIC,
169 PCI_DEVICE_ID_QLOGIC_QLE834X,
170 PCI_VENDOR_ID_QLOGIC,
171 0x24e,
172 "8300 Series Dual Port 10GbE Converged Network Adapter "
173 "(TCP/IP Networking)" },
174 { PCI_VENDOR_ID_QLOGIC,
175 PCI_DEVICE_ID_QLOGIC_QLE834X,
176 PCI_VENDOR_ID_QLOGIC,
177 0x243,
178 "8300 Series Single Port 10GbE Converged Network Adapter "
179 "(TCP/IP Networking)" },
180 { PCI_VENDOR_ID_QLOGIC,
181 PCI_DEVICE_ID_QLOGIC_QLE834X,
182 PCI_VENDOR_ID_QLOGIC,
183 0x24a,
184 "8300 Series Dual Port 10GbE Converged Network Adapter "
185 "(TCP/IP Networking)" },
186 { PCI_VENDOR_ID_QLOGIC,
187 PCI_DEVICE_ID_QLOGIC_QLE834X,
188 PCI_VENDOR_ID_QLOGIC,
189 0x246,
190 "8300 Series Dual Port 10GbE Converged Network Adapter "
191 "(TCP/IP Networking)" },
192 { PCI_VENDOR_ID_QLOGIC,
193 PCI_DEVICE_ID_QLOGIC_QLE834X,
194 PCI_VENDOR_ID_QLOGIC,
195 0x252,
196 "8300 Series Dual Port 10GbE Converged Network Adapter "
197 "(TCP/IP Networking)" },
198 { PCI_VENDOR_ID_QLOGIC,
199 PCI_DEVICE_ID_QLOGIC_QLE834X,
200 PCI_VENDOR_ID_QLOGIC,
201 0x26e,
202 "8300 Series Dual Port 10GbE Converged Network Adapter "
203 "(TCP/IP Networking)" },
204 { PCI_VENDOR_ID_QLOGIC,
205 PCI_DEVICE_ID_QLOGIC_QLE834X,
206 PCI_VENDOR_ID_QLOGIC,
207 0x260,
208 "8300 Series Dual Port 10GbE Converged Network Adapter "
209 "(TCP/IP Networking)" },
210 { PCI_VENDOR_ID_QLOGIC,
211 PCI_DEVICE_ID_QLOGIC_QLE834X,
212 PCI_VENDOR_ID_QLOGIC,
213 0x266,
214 "8300 Series Single Port 10GbE Converged Network Adapter "
215 "(TCP/IP Networking)" },
216 { PCI_VENDOR_ID_QLOGIC,
217 PCI_DEVICE_ID_QLOGIC_QLE834X,
218 PCI_VENDOR_ID_QLOGIC,
219 0x269,
220 "8300 Series Dual Port 10GbE Converged Network Adapter "
221 "(TCP/IP Networking)" },
222 { PCI_VENDOR_ID_QLOGIC,
223 PCI_DEVICE_ID_QLOGIC_QLE834X,
224 PCI_VENDOR_ID_QLOGIC,
225 0x271,
226 "8300 Series Dual Port 10GbE Converged Network Adapter "
227 "(TCP/IP Networking)" },
228 { PCI_VENDOR_ID_QLOGIC,
229 PCI_DEVICE_ID_QLOGIC_QLE834X,
230 0x0, 0x0, "8300 Series 1/10GbE Controller" },
231 { PCI_VENDOR_ID_QLOGIC,
232 PCI_DEVICE_ID_QLOGIC_QLE8830,
233 0x0,
234 0x0,
235 "8830 Series 1/10GbE Controller" },
236 { PCI_VENDOR_ID_QLOGIC,
237 PCI_DEVICE_ID_QLOGIC_QLE824X,
238 PCI_VENDOR_ID_QLOGIC,
239 0x203,
240 "8200 Series Single Port 10GbE Converged Network Adapter"
241 "(TCP/IP Networking)" },
242 { PCI_VENDOR_ID_QLOGIC,
243 PCI_DEVICE_ID_QLOGIC_QLE824X,
244 PCI_VENDOR_ID_QLOGIC,
245 0x207,
246 "8200 Series Dual Port 10GbE Converged Network Adapter"
247 "(TCP/IP Networking)" },
248 { PCI_VENDOR_ID_QLOGIC,
249 PCI_DEVICE_ID_QLOGIC_QLE824X,
250 PCI_VENDOR_ID_QLOGIC,
251 0x20b,
252 "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
253 { PCI_VENDOR_ID_QLOGIC,
254 PCI_DEVICE_ID_QLOGIC_QLE824X,
255 PCI_VENDOR_ID_QLOGIC,
256 0x20c,
257 "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
258 { PCI_VENDOR_ID_QLOGIC,
259 PCI_DEVICE_ID_QLOGIC_QLE824X,
260 PCI_VENDOR_ID_QLOGIC,
261 0x20f,
262 "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
263 { PCI_VENDOR_ID_QLOGIC,
264 PCI_DEVICE_ID_QLOGIC_QLE824X,
265 0x103c, 0x3733,
266 "NC523SFP 10Gb 2-port Server Adapter" },
267 { PCI_VENDOR_ID_QLOGIC,
268 PCI_DEVICE_ID_QLOGIC_QLE824X,
269 0x103c, 0x3346,
270 "CN1000Q Dual Port Converged Network Adapter" },
271 { PCI_VENDOR_ID_QLOGIC,
272 PCI_DEVICE_ID_QLOGIC_QLE824X,
273 PCI_VENDOR_ID_QLOGIC,
274 0x210,
275 "QME8242-k 10GbE Dual Port Mezzanine Card" },
276 { PCI_VENDOR_ID_QLOGIC,
277 PCI_DEVICE_ID_QLOGIC_QLE824X,
278 0x0, 0x0, "cLOM8214 1/10GbE Controller" },
279 };
280
281 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
282
283 static const
284 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
285
qlcnic_alloc_sds_rings(struct qlcnic_recv_context * recv_ctx,int count)286 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
287 {
288 int size = sizeof(struct qlcnic_host_sds_ring) * count;
289
290 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
291
292 return recv_ctx->sds_rings == NULL;
293 }
294
qlcnic_free_sds_rings(struct qlcnic_recv_context * recv_ctx)295 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
296 {
297 kfree(recv_ctx->sds_rings);
298 recv_ctx->sds_rings = NULL;
299 }
300
qlcnic_read_mac_addr(struct qlcnic_adapter * adapter)301 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
302 {
303 struct net_device *netdev = adapter->netdev;
304 struct pci_dev *pdev = adapter->pdev;
305 u8 mac_addr[ETH_ALEN];
306 int ret;
307
308 ret = qlcnic_get_mac_address(adapter, mac_addr,
309 adapter->ahw->pci_func);
310 if (ret)
311 return ret;
312
313 memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
314 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
315
316 /* set station address */
317
318 if (!is_valid_ether_addr(netdev->dev_addr))
319 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
320 netdev->dev_addr);
321
322 return 0;
323 }
324
qlcnic_delete_adapter_mac(struct qlcnic_adapter * adapter)325 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
326 {
327 struct qlcnic_mac_vlan_list *cur;
328 struct list_head *head;
329
330 list_for_each(head, &adapter->mac_list) {
331 cur = list_entry(head, struct qlcnic_mac_vlan_list, list);
332 if (ether_addr_equal_unaligned(adapter->mac_addr, cur->mac_addr)) {
333 qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
334 0, QLCNIC_MAC_DEL);
335 list_del(&cur->list);
336 kfree(cur);
337 return;
338 }
339 }
340 }
341
qlcnic_set_mac(struct net_device * netdev,void * p)342 static int qlcnic_set_mac(struct net_device *netdev, void *p)
343 {
344 struct qlcnic_adapter *adapter = netdev_priv(netdev);
345 struct sockaddr *addr = p;
346
347 if (qlcnic_sriov_vf_check(adapter))
348 return -EINVAL;
349
350 if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
351 return -EOPNOTSUPP;
352
353 if (!is_valid_ether_addr(addr->sa_data))
354 return -EINVAL;
355
356 if (ether_addr_equal_unaligned(adapter->mac_addr, addr->sa_data) &&
357 ether_addr_equal_unaligned(netdev->dev_addr, addr->sa_data))
358 return 0;
359
360 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
361 netif_device_detach(netdev);
362 qlcnic_napi_disable(adapter);
363 }
364
365 qlcnic_delete_adapter_mac(adapter);
366 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
367 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
368 qlcnic_set_multi(adapter->netdev);
369
370 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
371 netif_device_attach(netdev);
372 qlcnic_napi_enable(adapter);
373 }
374 return 0;
375 }
376
qlcnic_fdb_del(struct ndmsg * ndm,struct nlattr * tb[],struct net_device * netdev,const unsigned char * addr,u16 vid)377 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
378 struct net_device *netdev,
379 const unsigned char *addr, u16 vid)
380 {
381 struct qlcnic_adapter *adapter = netdev_priv(netdev);
382 int err = -EOPNOTSUPP;
383
384 if (!adapter->fdb_mac_learn)
385 return ndo_dflt_fdb_del(ndm, tb, netdev, addr, vid);
386
387 if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
388 qlcnic_sriov_check(adapter)) {
389 if (is_unicast_ether_addr(addr)) {
390 err = dev_uc_del(netdev, addr);
391 if (!err)
392 err = qlcnic_nic_del_mac(adapter, addr);
393 } else if (is_multicast_ether_addr(addr)) {
394 err = dev_mc_del(netdev, addr);
395 } else {
396 err = -EINVAL;
397 }
398 }
399 return err;
400 }
401
qlcnic_fdb_add(struct ndmsg * ndm,struct nlattr * tb[],struct net_device * netdev,const unsigned char * addr,u16 vid,u16 flags)402 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
403 struct net_device *netdev,
404 const unsigned char *addr, u16 vid, u16 flags)
405 {
406 struct qlcnic_adapter *adapter = netdev_priv(netdev);
407 int err = 0;
408
409 if (!adapter->fdb_mac_learn)
410 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, vid, flags);
411
412 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) &&
413 !qlcnic_sriov_check(adapter)) {
414 pr_info("%s: FDB e-switch is not enabled\n", __func__);
415 return -EOPNOTSUPP;
416 }
417
418 if (ether_addr_equal(addr, adapter->mac_addr))
419 return err;
420
421 if (is_unicast_ether_addr(addr)) {
422 if (netdev_uc_count(netdev) < adapter->ahw->max_uc_count)
423 err = dev_uc_add_excl(netdev, addr);
424 else
425 err = -ENOMEM;
426 } else if (is_multicast_ether_addr(addr)) {
427 err = dev_mc_add_excl(netdev, addr);
428 } else {
429 err = -EINVAL;
430 }
431
432 return err;
433 }
434
qlcnic_fdb_dump(struct sk_buff * skb,struct netlink_callback * ncb,struct net_device * netdev,struct net_device * filter_dev,int idx)435 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
436 struct net_device *netdev,
437 struct net_device *filter_dev, int idx)
438 {
439 struct qlcnic_adapter *adapter = netdev_priv(netdev);
440
441 if (!adapter->fdb_mac_learn)
442 return ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
443
444 if ((adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
445 qlcnic_sriov_check(adapter))
446 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, filter_dev, idx);
447
448 return idx;
449 }
450
qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter * adapter)451 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
452 {
453 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
454 usleep_range(10000, 11000);
455
456 if (!adapter->fw_work.work.func)
457 return;
458
459 cancel_delayed_work_sync(&adapter->fw_work);
460 }
461
qlcnic_get_phys_port_id(struct net_device * netdev,struct netdev_phys_item_id * ppid)462 static int qlcnic_get_phys_port_id(struct net_device *netdev,
463 struct netdev_phys_item_id *ppid)
464 {
465 struct qlcnic_adapter *adapter = netdev_priv(netdev);
466 struct qlcnic_hardware_context *ahw = adapter->ahw;
467
468 if (!(adapter->flags & QLCNIC_HAS_PHYS_PORT_ID))
469 return -EOPNOTSUPP;
470
471 ppid->id_len = sizeof(ahw->phys_port_id);
472 memcpy(ppid->id, ahw->phys_port_id, ppid->id_len);
473
474 return 0;
475 }
476
477 #ifdef CONFIG_QLCNIC_VXLAN
qlcnic_add_vxlan_port(struct net_device * netdev,sa_family_t sa_family,__be16 port)478 static void qlcnic_add_vxlan_port(struct net_device *netdev,
479 sa_family_t sa_family, __be16 port)
480 {
481 struct qlcnic_adapter *adapter = netdev_priv(netdev);
482 struct qlcnic_hardware_context *ahw = adapter->ahw;
483
484 /* Adapter supports only one VXLAN port. Use very first port
485 * for enabling offload
486 */
487 if (!qlcnic_encap_rx_offload(adapter))
488 return;
489 if (!ahw->vxlan_port_count) {
490 ahw->vxlan_port_count = 1;
491 ahw->vxlan_port = ntohs(port);
492 adapter->flags |= QLCNIC_ADD_VXLAN_PORT;
493 return;
494 }
495 if (ahw->vxlan_port == ntohs(port))
496 ahw->vxlan_port_count++;
497
498 }
499
qlcnic_del_vxlan_port(struct net_device * netdev,sa_family_t sa_family,__be16 port)500 static void qlcnic_del_vxlan_port(struct net_device *netdev,
501 sa_family_t sa_family, __be16 port)
502 {
503 struct qlcnic_adapter *adapter = netdev_priv(netdev);
504 struct qlcnic_hardware_context *ahw = adapter->ahw;
505
506 if (!qlcnic_encap_rx_offload(adapter) || !ahw->vxlan_port_count ||
507 (ahw->vxlan_port != ntohs(port)))
508 return;
509
510 ahw->vxlan_port_count--;
511 if (!ahw->vxlan_port_count)
512 adapter->flags |= QLCNIC_DEL_VXLAN_PORT;
513 }
514
qlcnic_features_check(struct sk_buff * skb,struct net_device * dev,netdev_features_t features)515 static netdev_features_t qlcnic_features_check(struct sk_buff *skb,
516 struct net_device *dev,
517 netdev_features_t features)
518 {
519 features = vlan_features_check(skb, features);
520 return vxlan_features_check(skb, features);
521 }
522 #endif
523
524 static const struct net_device_ops qlcnic_netdev_ops = {
525 .ndo_open = qlcnic_open,
526 .ndo_stop = qlcnic_close,
527 .ndo_start_xmit = qlcnic_xmit_frame,
528 .ndo_get_stats = qlcnic_get_stats,
529 .ndo_validate_addr = eth_validate_addr,
530 .ndo_set_rx_mode = qlcnic_set_multi,
531 .ndo_set_mac_address = qlcnic_set_mac,
532 .ndo_change_mtu = qlcnic_change_mtu,
533 .ndo_fix_features = qlcnic_fix_features,
534 .ndo_set_features = qlcnic_set_features,
535 .ndo_tx_timeout = qlcnic_tx_timeout,
536 .ndo_vlan_rx_add_vid = qlcnic_vlan_rx_add,
537 .ndo_vlan_rx_kill_vid = qlcnic_vlan_rx_del,
538 .ndo_fdb_add = qlcnic_fdb_add,
539 .ndo_fdb_del = qlcnic_fdb_del,
540 .ndo_fdb_dump = qlcnic_fdb_dump,
541 .ndo_get_phys_port_id = qlcnic_get_phys_port_id,
542 #ifdef CONFIG_QLCNIC_VXLAN
543 .ndo_add_vxlan_port = qlcnic_add_vxlan_port,
544 .ndo_del_vxlan_port = qlcnic_del_vxlan_port,
545 .ndo_features_check = qlcnic_features_check,
546 #endif
547 #ifdef CONFIG_NET_POLL_CONTROLLER
548 .ndo_poll_controller = qlcnic_poll_controller,
549 #endif
550 #ifdef CONFIG_QLCNIC_SRIOV
551 .ndo_set_vf_mac = qlcnic_sriov_set_vf_mac,
552 .ndo_set_vf_rate = qlcnic_sriov_set_vf_tx_rate,
553 .ndo_get_vf_config = qlcnic_sriov_get_vf_config,
554 .ndo_set_vf_vlan = qlcnic_sriov_set_vf_vlan,
555 .ndo_set_vf_spoofchk = qlcnic_sriov_set_vf_spoofchk,
556 #endif
557 };
558
559 static const struct net_device_ops qlcnic_netdev_failed_ops = {
560 .ndo_open = qlcnic_open,
561 };
562
563 static struct qlcnic_nic_template qlcnic_ops = {
564 .config_bridged_mode = qlcnic_config_bridged_mode,
565 .config_led = qlcnic_82xx_config_led,
566 .start_firmware = qlcnic_82xx_start_firmware,
567 .request_reset = qlcnic_82xx_dev_request_reset,
568 .cancel_idc_work = qlcnic_82xx_cancel_idc_work,
569 .napi_add = qlcnic_82xx_napi_add,
570 .napi_del = qlcnic_82xx_napi_del,
571 .config_ipaddr = qlcnic_82xx_config_ipaddr,
572 .shutdown = qlcnic_82xx_shutdown,
573 .resume = qlcnic_82xx_resume,
574 .clear_legacy_intr = qlcnic_82xx_clear_legacy_intr,
575 };
576
577 struct qlcnic_nic_template qlcnic_vf_ops = {
578 .config_bridged_mode = qlcnicvf_config_bridged_mode,
579 .config_led = qlcnicvf_config_led,
580 .start_firmware = qlcnicvf_start_firmware
581 };
582
583 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
584 .read_crb = qlcnic_82xx_read_crb,
585 .write_crb = qlcnic_82xx_write_crb,
586 .read_reg = qlcnic_82xx_hw_read_wx_2M,
587 .write_reg = qlcnic_82xx_hw_write_wx_2M,
588 .get_mac_address = qlcnic_82xx_get_mac_address,
589 .setup_intr = qlcnic_82xx_setup_intr,
590 .alloc_mbx_args = qlcnic_82xx_alloc_mbx_args,
591 .mbx_cmd = qlcnic_82xx_issue_cmd,
592 .get_func_no = qlcnic_82xx_get_func_no,
593 .api_lock = qlcnic_82xx_api_lock,
594 .api_unlock = qlcnic_82xx_api_unlock,
595 .add_sysfs = qlcnic_82xx_add_sysfs,
596 .remove_sysfs = qlcnic_82xx_remove_sysfs,
597 .process_lb_rcv_ring_diag = qlcnic_82xx_process_rcv_ring_diag,
598 .create_rx_ctx = qlcnic_82xx_fw_cmd_create_rx_ctx,
599 .create_tx_ctx = qlcnic_82xx_fw_cmd_create_tx_ctx,
600 .del_rx_ctx = qlcnic_82xx_fw_cmd_del_rx_ctx,
601 .del_tx_ctx = qlcnic_82xx_fw_cmd_del_tx_ctx,
602 .setup_link_event = qlcnic_82xx_linkevent_request,
603 .get_nic_info = qlcnic_82xx_get_nic_info,
604 .get_pci_info = qlcnic_82xx_get_pci_info,
605 .set_nic_info = qlcnic_82xx_set_nic_info,
606 .change_macvlan = qlcnic_82xx_sre_macaddr_change,
607 .napi_enable = qlcnic_82xx_napi_enable,
608 .napi_disable = qlcnic_82xx_napi_disable,
609 .config_intr_coal = qlcnic_82xx_config_intr_coalesce,
610 .config_rss = qlcnic_82xx_config_rss,
611 .config_hw_lro = qlcnic_82xx_config_hw_lro,
612 .config_loopback = qlcnic_82xx_set_lb_mode,
613 .clear_loopback = qlcnic_82xx_clear_lb_mode,
614 .config_promisc_mode = qlcnic_82xx_nic_set_promisc,
615 .change_l2_filter = qlcnic_82xx_change_filter,
616 .get_board_info = qlcnic_82xx_get_board_info,
617 .set_mac_filter_count = qlcnic_82xx_set_mac_filter_count,
618 .free_mac_list = qlcnic_82xx_free_mac_list,
619 .read_phys_port_id = qlcnic_82xx_read_phys_port_id,
620 .io_error_detected = qlcnic_82xx_io_error_detected,
621 .io_slot_reset = qlcnic_82xx_io_slot_reset,
622 .io_resume = qlcnic_82xx_io_resume,
623 .get_beacon_state = qlcnic_82xx_get_beacon_state,
624 .enable_sds_intr = qlcnic_82xx_enable_sds_intr,
625 .disable_sds_intr = qlcnic_82xx_disable_sds_intr,
626 .enable_tx_intr = qlcnic_82xx_enable_tx_intr,
627 .disable_tx_intr = qlcnic_82xx_disable_tx_intr,
628 .get_saved_state = qlcnic_82xx_get_saved_state,
629 .set_saved_state = qlcnic_82xx_set_saved_state,
630 .cache_tmpl_hdr_values = qlcnic_82xx_cache_tmpl_hdr_values,
631 .get_cap_size = qlcnic_82xx_get_cap_size,
632 .set_sys_info = qlcnic_82xx_set_sys_info,
633 .store_cap_mask = qlcnic_82xx_store_cap_mask,
634 };
635
qlcnic_check_multi_tx_capability(struct qlcnic_adapter * adapter)636 static int qlcnic_check_multi_tx_capability(struct qlcnic_adapter *adapter)
637 {
638 struct qlcnic_hardware_context *ahw = adapter->ahw;
639
640 if (qlcnic_82xx_check(adapter) &&
641 (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_2_MULTI_TX)) {
642 test_and_set_bit(__QLCNIC_MULTI_TX_UNIQUE, &adapter->state);
643 return 0;
644 } else {
645 return 1;
646 }
647 }
648
qlcnic_max_rings(struct qlcnic_adapter * adapter,u8 ring_cnt,int queue_type)649 static int qlcnic_max_rings(struct qlcnic_adapter *adapter, u8 ring_cnt,
650 int queue_type)
651 {
652 int num_rings, max_rings = QLCNIC_MAX_SDS_RINGS;
653
654 if (queue_type == QLCNIC_RX_QUEUE)
655 max_rings = adapter->max_sds_rings;
656 else if (queue_type == QLCNIC_TX_QUEUE)
657 max_rings = adapter->max_tx_rings;
658
659 num_rings = rounddown_pow_of_two(min_t(int, num_online_cpus(),
660 max_rings));
661
662 if (ring_cnt > num_rings)
663 return num_rings;
664 else
665 return ring_cnt;
666 }
667
qlcnic_set_tx_ring_count(struct qlcnic_adapter * adapter,u8 tx_cnt)668 void qlcnic_set_tx_ring_count(struct qlcnic_adapter *adapter, u8 tx_cnt)
669 {
670 /* 83xx adapter does not have max_tx_rings intialized in probe */
671 if (adapter->max_tx_rings)
672 adapter->drv_tx_rings = qlcnic_max_rings(adapter, tx_cnt,
673 QLCNIC_TX_QUEUE);
674 else
675 adapter->drv_tx_rings = tx_cnt;
676 }
677
qlcnic_set_sds_ring_count(struct qlcnic_adapter * adapter,u8 rx_cnt)678 void qlcnic_set_sds_ring_count(struct qlcnic_adapter *adapter, u8 rx_cnt)
679 {
680 /* 83xx adapter does not have max_sds_rings intialized in probe */
681 if (adapter->max_sds_rings)
682 adapter->drv_sds_rings = qlcnic_max_rings(adapter, rx_cnt,
683 QLCNIC_RX_QUEUE);
684 else
685 adapter->drv_sds_rings = rx_cnt;
686 }
687
qlcnic_setup_tss_rss_intr(struct qlcnic_adapter * adapter)688 int qlcnic_setup_tss_rss_intr(struct qlcnic_adapter *adapter)
689 {
690 struct pci_dev *pdev = adapter->pdev;
691 int num_msix = 0, err = 0, vector;
692
693 adapter->flags &= ~QLCNIC_TSS_RSS;
694
695 if (adapter->drv_tss_rings > 0)
696 num_msix += adapter->drv_tss_rings;
697 else
698 num_msix += adapter->drv_tx_rings;
699
700 if (adapter->drv_rss_rings > 0)
701 num_msix += adapter->drv_rss_rings;
702 else
703 num_msix += adapter->drv_sds_rings;
704
705 if (qlcnic_83xx_check(adapter))
706 num_msix += 1;
707
708 if (!adapter->msix_entries) {
709 adapter->msix_entries = kcalloc(num_msix,
710 sizeof(struct msix_entry),
711 GFP_KERNEL);
712 if (!adapter->msix_entries)
713 return -ENOMEM;
714 }
715
716 for (vector = 0; vector < num_msix; vector++)
717 adapter->msix_entries[vector].entry = vector;
718
719 restore:
720 err = pci_enable_msix_exact(pdev, adapter->msix_entries, num_msix);
721 if (err == -ENOSPC) {
722 if (!adapter->drv_tss_rings && !adapter->drv_rss_rings)
723 return err;
724
725 netdev_info(adapter->netdev,
726 "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
727 num_msix, err);
728
729 num_msix = adapter->drv_tx_rings + adapter->drv_sds_rings;
730
731 /* Set rings to 0 so we can restore original TSS/RSS count */
732 adapter->drv_tss_rings = 0;
733 adapter->drv_rss_rings = 0;
734
735 if (qlcnic_83xx_check(adapter))
736 num_msix += 1;
737
738 netdev_info(adapter->netdev,
739 "Restoring %d Tx, %d SDS rings for total %d vectors.\n",
740 adapter->drv_tx_rings, adapter->drv_sds_rings,
741 num_msix);
742
743 goto restore;
744 } else if (err < 0) {
745 return err;
746 }
747
748 adapter->ahw->num_msix = num_msix;
749 if (adapter->drv_tss_rings > 0)
750 adapter->drv_tx_rings = adapter->drv_tss_rings;
751
752 if (adapter->drv_rss_rings > 0)
753 adapter->drv_sds_rings = adapter->drv_rss_rings;
754
755 return 0;
756 }
757
qlcnic_enable_msix(struct qlcnic_adapter * adapter,u32 num_msix)758 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
759 {
760 struct pci_dev *pdev = adapter->pdev;
761 int err, vector;
762
763 if (!adapter->msix_entries) {
764 adapter->msix_entries = kcalloc(num_msix,
765 sizeof(struct msix_entry),
766 GFP_KERNEL);
767 if (!adapter->msix_entries)
768 return -ENOMEM;
769 }
770
771 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
772
773 if (adapter->ahw->msix_supported) {
774 enable_msix:
775 for (vector = 0; vector < num_msix; vector++)
776 adapter->msix_entries[vector].entry = vector;
777
778 err = pci_enable_msix_range(pdev,
779 adapter->msix_entries, 1, num_msix);
780
781 if (err == num_msix) {
782 adapter->flags |= QLCNIC_MSIX_ENABLED;
783 adapter->ahw->num_msix = num_msix;
784 dev_info(&pdev->dev, "using msi-x interrupts\n");
785 return 0;
786 } else if (err > 0) {
787 pci_disable_msix(pdev);
788
789 dev_info(&pdev->dev,
790 "Unable to allocate %d MSI-X vectors, Available vectors %d\n",
791 num_msix, err);
792
793 if (qlcnic_82xx_check(adapter)) {
794 num_msix = rounddown_pow_of_two(err);
795 if (err < QLCNIC_82XX_MINIMUM_VECTOR)
796 return -ENOSPC;
797 } else {
798 num_msix = rounddown_pow_of_two(err - 1);
799 num_msix += 1;
800 if (err < QLCNIC_83XX_MINIMUM_VECTOR)
801 return -ENOSPC;
802 }
803
804 if (qlcnic_82xx_check(adapter) &&
805 !qlcnic_check_multi_tx(adapter)) {
806 adapter->drv_sds_rings = num_msix;
807 adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
808 } else {
809 /* Distribute vectors equally */
810 adapter->drv_tx_rings = num_msix / 2;
811 adapter->drv_sds_rings = adapter->drv_tx_rings;
812 }
813
814 if (num_msix) {
815 dev_info(&pdev->dev,
816 "Trying to allocate %d MSI-X interrupt vectors\n",
817 num_msix);
818 goto enable_msix;
819 }
820 } else {
821 dev_info(&pdev->dev,
822 "Unable to allocate %d MSI-X vectors, err=%d\n",
823 num_msix, err);
824 return err;
825 }
826 }
827
828 return -EIO;
829 }
830
qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter * adapter)831 static int qlcnic_82xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
832 {
833 int num_msix;
834
835 num_msix = adapter->drv_sds_rings;
836
837 if (qlcnic_check_multi_tx(adapter))
838 num_msix += adapter->drv_tx_rings;
839 else
840 num_msix += QLCNIC_SINGLE_RING;
841
842 return num_msix;
843 }
844
qlcnic_enable_msi_legacy(struct qlcnic_adapter * adapter)845 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
846 {
847 int err = 0;
848 u32 offset, mask_reg;
849 const struct qlcnic_legacy_intr_set *legacy_intrp;
850 struct qlcnic_hardware_context *ahw = adapter->ahw;
851 struct pci_dev *pdev = adapter->pdev;
852
853 if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
854 adapter->flags |= QLCNIC_MSI_ENABLED;
855 offset = msi_tgt_status[adapter->ahw->pci_func];
856 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
857 offset);
858 dev_info(&pdev->dev, "using msi interrupts\n");
859 adapter->msix_entries[0].vector = pdev->irq;
860 return err;
861 }
862
863 if (qlcnic_use_msi || qlcnic_use_msi_x)
864 return -EOPNOTSUPP;
865
866 legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
867 adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
868 offset = legacy_intrp->tgt_status_reg;
869 adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
870 mask_reg = legacy_intrp->tgt_mask_reg;
871 adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
872 adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
873 adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
874 dev_info(&pdev->dev, "using legacy interrupts\n");
875 adapter->msix_entries[0].vector = pdev->irq;
876 return err;
877 }
878
qlcnic_82xx_setup_intr(struct qlcnic_adapter * adapter)879 static int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter)
880 {
881 int num_msix, err = 0;
882
883 if (adapter->flags & QLCNIC_TSS_RSS) {
884 err = qlcnic_setup_tss_rss_intr(adapter);
885 if (err < 0)
886 return err;
887 num_msix = adapter->ahw->num_msix;
888 } else {
889 num_msix = qlcnic_82xx_calculate_msix_vector(adapter);
890
891 err = qlcnic_enable_msix(adapter, num_msix);
892 if (err == -ENOMEM)
893 return err;
894
895 if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
896 qlcnic_disable_multi_tx(adapter);
897 adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
898
899 err = qlcnic_enable_msi_legacy(adapter);
900 if (err)
901 return err;
902 }
903 }
904
905 return 0;
906 }
907
qlcnic_82xx_mq_intrpt(struct qlcnic_adapter * adapter,int op_type)908 int qlcnic_82xx_mq_intrpt(struct qlcnic_adapter *adapter, int op_type)
909 {
910 struct qlcnic_hardware_context *ahw = adapter->ahw;
911 int err, i;
912
913 if (qlcnic_check_multi_tx(adapter) &&
914 !ahw->diag_test &&
915 (adapter->flags & QLCNIC_MSIX_ENABLED)) {
916 ahw->intr_tbl = vzalloc(ahw->num_msix *
917 sizeof(struct qlcnic_intrpt_config));
918 if (!ahw->intr_tbl)
919 return -ENOMEM;
920
921 for (i = 0; i < ahw->num_msix; i++) {
922 ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
923 ahw->intr_tbl[i].id = i;
924 ahw->intr_tbl[i].src = 0;
925 }
926
927 err = qlcnic_82xx_config_intrpt(adapter, 1);
928 if (err)
929 dev_err(&adapter->pdev->dev,
930 "Failed to configure Interrupt for %d vector\n",
931 ahw->num_msix);
932 return err;
933 }
934
935 return 0;
936 }
937
qlcnic_teardown_intr(struct qlcnic_adapter * adapter)938 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
939 {
940 if (adapter->flags & QLCNIC_MSIX_ENABLED)
941 pci_disable_msix(adapter->pdev);
942 if (adapter->flags & QLCNIC_MSI_ENABLED)
943 pci_disable_msi(adapter->pdev);
944
945 kfree(adapter->msix_entries);
946 adapter->msix_entries = NULL;
947
948 if (adapter->ahw->intr_tbl) {
949 vfree(adapter->ahw->intr_tbl);
950 adapter->ahw->intr_tbl = NULL;
951 }
952 }
953
qlcnic_cleanup_pci_map(struct qlcnic_hardware_context * ahw)954 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
955 {
956 if (ahw->pci_base0 != NULL)
957 iounmap(ahw->pci_base0);
958 }
959
qlcnic_get_act_pci_func(struct qlcnic_adapter * adapter)960 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
961 {
962 struct qlcnic_hardware_context *ahw = adapter->ahw;
963 struct qlcnic_pci_info *pci_info;
964 int ret;
965
966 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
967 switch (ahw->port_type) {
968 case QLCNIC_GBE:
969 ahw->total_nic_func = QLCNIC_NIU_MAX_GBE_PORTS;
970 break;
971 case QLCNIC_XGBE:
972 ahw->total_nic_func = QLCNIC_NIU_MAX_XG_PORTS;
973 break;
974 }
975 return 0;
976 }
977
978 if (ahw->op_mode == QLCNIC_MGMT_FUNC)
979 return 0;
980
981 pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
982 if (!pci_info)
983 return -ENOMEM;
984
985 ret = qlcnic_get_pci_info(adapter, pci_info);
986 kfree(pci_info);
987 return ret;
988 }
989
qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter * adapter)990 static bool qlcnic_port_eswitch_cfg_capability(struct qlcnic_adapter *adapter)
991 {
992 bool ret = false;
993
994 if (qlcnic_84xx_check(adapter)) {
995 ret = true;
996 } else if (qlcnic_83xx_check(adapter)) {
997 if (adapter->ahw->extra_capability[0] &
998 QLCNIC_FW_CAPABILITY_2_PER_PORT_ESWITCH_CFG)
999 ret = true;
1000 else
1001 ret = false;
1002 }
1003
1004 return ret;
1005 }
1006
qlcnic_init_pci_info(struct qlcnic_adapter * adapter)1007 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
1008 {
1009 struct qlcnic_hardware_context *ahw = adapter->ahw;
1010 struct qlcnic_pci_info *pci_info;
1011 int i, id = 0, ret = 0, j = 0;
1012 u16 act_pci_func;
1013 u8 pfn;
1014
1015 pci_info = kcalloc(ahw->max_vnic_func, sizeof(*pci_info), GFP_KERNEL);
1016 if (!pci_info)
1017 return -ENOMEM;
1018
1019 ret = qlcnic_get_pci_info(adapter, pci_info);
1020 if (ret)
1021 goto err_pci_info;
1022
1023 act_pci_func = ahw->total_nic_func;
1024
1025 adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
1026 act_pci_func, GFP_KERNEL);
1027 if (!adapter->npars) {
1028 ret = -ENOMEM;
1029 goto err_pci_info;
1030 }
1031
1032 adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
1033 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
1034 if (!adapter->eswitch) {
1035 ret = -ENOMEM;
1036 goto err_npars;
1037 }
1038
1039 for (i = 0; i < ahw->max_vnic_func; i++) {
1040 pfn = pci_info[i].id;
1041
1042 if (pfn >= ahw->max_vnic_func) {
1043 ret = -EINVAL;
1044 dev_err(&adapter->pdev->dev, "%s: Invalid function 0x%x, max 0x%x\n",
1045 __func__, pfn, ahw->max_vnic_func);
1046 goto err_eswitch;
1047 }
1048
1049 if (!pci_info[i].active ||
1050 (pci_info[i].type != QLCNIC_TYPE_NIC))
1051 continue;
1052
1053 if (qlcnic_port_eswitch_cfg_capability(adapter)) {
1054 if (!qlcnic_83xx_set_port_eswitch_status(adapter, pfn,
1055 &id))
1056 adapter->npars[j].eswitch_status = true;
1057 else
1058 continue;
1059 } else {
1060 adapter->npars[j].eswitch_status = true;
1061 }
1062
1063 adapter->npars[j].pci_func = pfn;
1064 adapter->npars[j].active = (u8)pci_info[i].active;
1065 adapter->npars[j].type = (u8)pci_info[i].type;
1066 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
1067 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
1068 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
1069
1070 memcpy(&adapter->npars[j].mac, &pci_info[i].mac, ETH_ALEN);
1071 j++;
1072 }
1073
1074 /* Update eSwitch status for adapters without per port eSwitch
1075 * configuration capability
1076 */
1077 if (!qlcnic_port_eswitch_cfg_capability(adapter)) {
1078 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++)
1079 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
1080 }
1081
1082 kfree(pci_info);
1083 return 0;
1084
1085 err_eswitch:
1086 kfree(adapter->eswitch);
1087 adapter->eswitch = NULL;
1088 err_npars:
1089 kfree(adapter->npars);
1090 adapter->npars = NULL;
1091 err_pci_info:
1092 kfree(pci_info);
1093
1094 return ret;
1095 }
1096
1097 static int
qlcnic_set_function_modes(struct qlcnic_adapter * adapter)1098 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
1099 {
1100 u8 id;
1101 int ret;
1102 u32 data = QLCNIC_MGMT_FUNC;
1103 struct qlcnic_hardware_context *ahw = adapter->ahw;
1104
1105 ret = qlcnic_api_lock(adapter);
1106 if (ret)
1107 goto err_lock;
1108
1109 id = ahw->pci_func;
1110 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1111 data = (data & ~QLC_DEV_SET_DRV(0xf, id)) |
1112 QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC, id);
1113 QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
1114 qlcnic_api_unlock(adapter);
1115 err_lock:
1116 return ret;
1117 }
1118
qlcnic_check_vf(struct qlcnic_adapter * adapter,const struct pci_device_id * ent)1119 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
1120 const struct pci_device_id *ent)
1121 {
1122 u32 op_mode, priv_level;
1123
1124 /* Determine FW API version */
1125 adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
1126 QLCNIC_FW_API);
1127
1128 /* Find PCI function number */
1129 qlcnic_get_func_no(adapter);
1130
1131 /* Determine function privilege level */
1132 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1133 if (op_mode == QLC_DEV_DRV_DEFAULT)
1134 priv_level = QLCNIC_MGMT_FUNC;
1135 else
1136 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1137
1138 if (priv_level == QLCNIC_NON_PRIV_FUNC) {
1139 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
1140 dev_info(&adapter->pdev->dev,
1141 "HAL Version: %d Non Privileged function\n",
1142 adapter->ahw->fw_hal_version);
1143 adapter->nic_ops = &qlcnic_vf_ops;
1144 } else
1145 adapter->nic_ops = &qlcnic_ops;
1146 }
1147
1148 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
1149 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
qlcnic_get_bar_length(u32 dev_id,ulong * bar)1150 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
1151 {
1152 switch (dev_id) {
1153 case PCI_DEVICE_ID_QLOGIC_QLE824X:
1154 *bar = QLCNIC_82XX_BAR0_LENGTH;
1155 break;
1156 case PCI_DEVICE_ID_QLOGIC_QLE834X:
1157 case PCI_DEVICE_ID_QLOGIC_QLE8830:
1158 case PCI_DEVICE_ID_QLOGIC_QLE844X:
1159 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1160 case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
1161 case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
1162 *bar = QLCNIC_83XX_BAR0_LENGTH;
1163 break;
1164 default:
1165 *bar = 0;
1166 }
1167 }
1168
qlcnic_setup_pci_map(struct pci_dev * pdev,struct qlcnic_hardware_context * ahw)1169 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
1170 struct qlcnic_hardware_context *ahw)
1171 {
1172 u32 offset;
1173 void __iomem *mem_ptr0 = NULL;
1174 unsigned long mem_len, pci_len0 = 0, bar0_len;
1175
1176 /* remap phys address */
1177 mem_len = pci_resource_len(pdev, 0);
1178
1179 qlcnic_get_bar_length(pdev->device, &bar0_len);
1180 if (mem_len >= bar0_len) {
1181
1182 mem_ptr0 = pci_ioremap_bar(pdev, 0);
1183 if (mem_ptr0 == NULL) {
1184 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
1185 return -EIO;
1186 }
1187 pci_len0 = mem_len;
1188 } else {
1189 return -EIO;
1190 }
1191
1192 dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
1193
1194 ahw->pci_base0 = mem_ptr0;
1195 ahw->pci_len0 = pci_len0;
1196 offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
1197 qlcnic_get_ioaddr(ahw, offset);
1198
1199 return 0;
1200 }
1201
qlcnic_validate_subsystem_id(struct qlcnic_adapter * adapter,int index)1202 static bool qlcnic_validate_subsystem_id(struct qlcnic_adapter *adapter,
1203 int index)
1204 {
1205 struct pci_dev *pdev = adapter->pdev;
1206 unsigned short subsystem_vendor;
1207 bool ret = true;
1208
1209 subsystem_vendor = pdev->subsystem_vendor;
1210
1211 if (pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X ||
1212 pdev->device == PCI_DEVICE_ID_QLOGIC_QLE834X) {
1213 if (qlcnic_boards[index].sub_vendor == subsystem_vendor &&
1214 qlcnic_boards[index].sub_device == pdev->subsystem_device)
1215 ret = true;
1216 else
1217 ret = false;
1218 }
1219
1220 return ret;
1221 }
1222
qlcnic_get_board_name(struct qlcnic_adapter * adapter,char * name)1223 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
1224 {
1225 struct pci_dev *pdev = adapter->pdev;
1226 int i, found = 0;
1227
1228 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
1229 if (qlcnic_boards[i].vendor == pdev->vendor &&
1230 qlcnic_boards[i].device == pdev->device &&
1231 qlcnic_validate_subsystem_id(adapter, i)) {
1232 found = 1;
1233 break;
1234 }
1235 }
1236
1237 if (!found)
1238 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
1239 else
1240 sprintf(name, "%pM: %s" , adapter->mac_addr,
1241 qlcnic_boards[i].short_name);
1242 }
1243
1244 static void
qlcnic_check_options(struct qlcnic_adapter * adapter)1245 qlcnic_check_options(struct qlcnic_adapter *adapter)
1246 {
1247 int err;
1248 u32 fw_major, fw_minor, fw_build, prev_fw_version;
1249 struct pci_dev *pdev = adapter->pdev;
1250 struct qlcnic_hardware_context *ahw = adapter->ahw;
1251 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
1252
1253 prev_fw_version = adapter->fw_version;
1254
1255 fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
1256 fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
1257 fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
1258
1259 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
1260
1261 err = qlcnic_get_board_info(adapter);
1262 if (err) {
1263 dev_err(&pdev->dev, "Error getting board config info.\n");
1264 return;
1265 }
1266 if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
1267 if (fw_dump->tmpl_hdr == NULL ||
1268 adapter->fw_version > prev_fw_version) {
1269 vfree(fw_dump->tmpl_hdr);
1270 if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
1271 dev_info(&pdev->dev,
1272 "Supports FW dump capability\n");
1273 }
1274 }
1275
1276 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
1277 QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
1278
1279 if (adapter->ahw->port_type == QLCNIC_XGBE) {
1280 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1281 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
1282 adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
1283 } else {
1284 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
1285 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
1286 }
1287
1288 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1289 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
1290
1291 } else if (adapter->ahw->port_type == QLCNIC_GBE) {
1292 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
1293 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1294 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
1295 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
1296 }
1297
1298 adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
1299
1300 adapter->num_txd = MAX_CMD_DESCRIPTORS;
1301
1302 adapter->max_rds_rings = MAX_RDS_RINGS;
1303 }
1304
1305 static int
qlcnic_initialize_nic(struct qlcnic_adapter * adapter)1306 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
1307 {
1308 struct qlcnic_info nic_info;
1309 int err = 0;
1310
1311 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1312 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
1313 if (err)
1314 return err;
1315
1316 adapter->ahw->physical_port = (u8)nic_info.phys_port;
1317 adapter->ahw->switch_mode = nic_info.switch_mode;
1318 adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
1319 adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
1320 adapter->ahw->capabilities = nic_info.capabilities;
1321
1322 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1323 u32 temp;
1324 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2, &err);
1325 if (err == -EIO)
1326 return err;
1327 adapter->ahw->extra_capability[0] = temp;
1328 } else {
1329 adapter->ahw->extra_capability[0] = 0;
1330 }
1331
1332 adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
1333 adapter->ahw->max_mtu = nic_info.max_mtu;
1334
1335 if (adapter->ahw->capabilities & BIT_6) {
1336 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
1337 adapter->ahw->nic_mode = QLCNIC_VNIC_MODE;
1338 adapter->max_tx_rings = QLCNIC_MAX_HW_VNIC_TX_RINGS;
1339 adapter->max_sds_rings = QLCNIC_MAX_VNIC_SDS_RINGS;
1340
1341 dev_info(&adapter->pdev->dev, "vNIC mode enabled.\n");
1342 } else {
1343 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1344 adapter->max_tx_rings = QLCNIC_MAX_HW_TX_RINGS;
1345 adapter->max_sds_rings = QLCNIC_MAX_SDS_RINGS;
1346 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
1347 }
1348
1349 return err;
1350 }
1351
qlcnic_set_vlan_config(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1352 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1353 struct qlcnic_esw_func_cfg *esw_cfg)
1354 {
1355 if (esw_cfg->discard_tagged)
1356 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1357 else
1358 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1359
1360 if (esw_cfg->vlan_id) {
1361 adapter->rx_pvid = esw_cfg->vlan_id;
1362 adapter->tx_pvid = esw_cfg->vlan_id;
1363 } else {
1364 adapter->rx_pvid = 0;
1365 adapter->tx_pvid = 0;
1366 }
1367 }
1368
1369 static int
qlcnic_vlan_rx_add(struct net_device * netdev,__be16 proto,u16 vid)1370 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1371 {
1372 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1373 int err;
1374
1375 if (qlcnic_sriov_vf_check(adapter)) {
1376 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1377 if (err) {
1378 netdev_err(netdev,
1379 "Cannot add VLAN filter for VLAN id %d, err=%d",
1380 vid, err);
1381 return err;
1382 }
1383 }
1384
1385 set_bit(vid, adapter->vlans);
1386 return 0;
1387 }
1388
1389 static int
qlcnic_vlan_rx_del(struct net_device * netdev,__be16 proto,u16 vid)1390 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1391 {
1392 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1393 int err;
1394
1395 if (qlcnic_sriov_vf_check(adapter)) {
1396 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1397 if (err) {
1398 netdev_err(netdev,
1399 "Cannot delete VLAN filter for VLAN id %d, err=%d",
1400 vid, err);
1401 return err;
1402 }
1403 }
1404
1405 qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1406 clear_bit(vid, adapter->vlans);
1407 return 0;
1408 }
1409
qlcnic_set_eswitch_port_features(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1410 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1411 struct qlcnic_esw_func_cfg *esw_cfg)
1412 {
1413 adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1414 QLCNIC_PROMISC_DISABLED);
1415
1416 if (esw_cfg->mac_anti_spoof)
1417 adapter->flags |= QLCNIC_MACSPOOF;
1418
1419 if (!esw_cfg->mac_override)
1420 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1421
1422 if (!esw_cfg->promisc_mode)
1423 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1424 }
1425
qlcnic_set_eswitch_port_config(struct qlcnic_adapter * adapter)1426 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1427 {
1428 struct qlcnic_esw_func_cfg esw_cfg;
1429
1430 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1431 return 0;
1432
1433 esw_cfg.pci_func = adapter->ahw->pci_func;
1434 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1435 return -EIO;
1436 qlcnic_set_vlan_config(adapter, &esw_cfg);
1437 qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1438 qlcnic_set_netdev_features(adapter, &esw_cfg);
1439
1440 return 0;
1441 }
1442
qlcnic_set_netdev_features(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1443 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1444 struct qlcnic_esw_func_cfg *esw_cfg)
1445 {
1446 struct net_device *netdev = adapter->netdev;
1447
1448 if (qlcnic_83xx_check(adapter))
1449 return;
1450
1451 adapter->offload_flags = esw_cfg->offload_flags;
1452 adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1453 netdev_update_features(netdev);
1454 adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1455 }
1456
1457 static int
qlcnic_check_eswitch_mode(struct qlcnic_adapter * adapter)1458 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1459 {
1460 u32 op_mode, priv_level;
1461 int err = 0;
1462
1463 err = qlcnic_initialize_nic(adapter);
1464 if (err)
1465 return err;
1466
1467 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1468 return 0;
1469
1470 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1471 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1472
1473 if (op_mode == QLC_DEV_DRV_DEFAULT)
1474 priv_level = QLCNIC_MGMT_FUNC;
1475 else
1476 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1477
1478 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1479 if (priv_level == QLCNIC_MGMT_FUNC) {
1480 adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1481 err = qlcnic_init_pci_info(adapter);
1482 if (err)
1483 return err;
1484 /* Set privilege level for other functions */
1485 qlcnic_set_function_modes(adapter);
1486 dev_info(&adapter->pdev->dev,
1487 "HAL Version: %d, Management function\n",
1488 adapter->ahw->fw_hal_version);
1489 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1490 adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1491 dev_info(&adapter->pdev->dev,
1492 "HAL Version: %d, Privileged function\n",
1493 adapter->ahw->fw_hal_version);
1494 }
1495 } else {
1496 adapter->ahw->nic_mode = QLCNIC_DEFAULT_MODE;
1497 }
1498
1499 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1500
1501 return err;
1502 }
1503
qlcnic_set_default_offload_settings(struct qlcnic_adapter * adapter)1504 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1505 {
1506 struct qlcnic_esw_func_cfg esw_cfg;
1507 struct qlcnic_npar_info *npar;
1508 u8 i;
1509
1510 if (adapter->need_fw_reset)
1511 return 0;
1512
1513 for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1514 if (!adapter->npars[i].eswitch_status)
1515 continue;
1516
1517 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1518 esw_cfg.pci_func = adapter->npars[i].pci_func;
1519 esw_cfg.mac_override = BIT_0;
1520 esw_cfg.promisc_mode = BIT_0;
1521 if (qlcnic_82xx_check(adapter)) {
1522 esw_cfg.offload_flags = BIT_0;
1523 if (QLCNIC_IS_TSO_CAPABLE(adapter))
1524 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1525 }
1526 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1527 return -EIO;
1528 npar = &adapter->npars[i];
1529 npar->pvid = esw_cfg.vlan_id;
1530 npar->mac_override = esw_cfg.mac_override;
1531 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1532 npar->discard_tagged = esw_cfg.discard_tagged;
1533 npar->promisc_mode = esw_cfg.promisc_mode;
1534 npar->offload_flags = esw_cfg.offload_flags;
1535 }
1536
1537 return 0;
1538 }
1539
1540
1541 static int
qlcnic_reset_eswitch_config(struct qlcnic_adapter * adapter,struct qlcnic_npar_info * npar,int pci_func)1542 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1543 struct qlcnic_npar_info *npar, int pci_func)
1544 {
1545 struct qlcnic_esw_func_cfg esw_cfg;
1546 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1547 esw_cfg.pci_func = pci_func;
1548 esw_cfg.vlan_id = npar->pvid;
1549 esw_cfg.mac_override = npar->mac_override;
1550 esw_cfg.discard_tagged = npar->discard_tagged;
1551 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1552 esw_cfg.offload_flags = npar->offload_flags;
1553 esw_cfg.promisc_mode = npar->promisc_mode;
1554 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1555 return -EIO;
1556
1557 esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1558 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1559 return -EIO;
1560
1561 return 0;
1562 }
1563
qlcnic_reset_npar_config(struct qlcnic_adapter * adapter)1564 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1565 {
1566 int i, err;
1567 struct qlcnic_npar_info *npar;
1568 struct qlcnic_info nic_info;
1569 u8 pci_func;
1570
1571 if (qlcnic_82xx_check(adapter))
1572 if (!adapter->need_fw_reset)
1573 return 0;
1574
1575 /* Set the NPAR config data after FW reset */
1576 for (i = 0; i < adapter->ahw->total_nic_func; i++) {
1577 npar = &adapter->npars[i];
1578 pci_func = npar->pci_func;
1579 if (!adapter->npars[i].eswitch_status)
1580 continue;
1581
1582 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1583 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1584 if (err)
1585 return err;
1586 nic_info.min_tx_bw = npar->min_bw;
1587 nic_info.max_tx_bw = npar->max_bw;
1588 err = qlcnic_set_nic_info(adapter, &nic_info);
1589 if (err)
1590 return err;
1591
1592 if (npar->enable_pm) {
1593 err = qlcnic_config_port_mirroring(adapter,
1594 npar->dest_npar, 1,
1595 pci_func);
1596 if (err)
1597 return err;
1598 }
1599 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1600 if (err)
1601 return err;
1602 }
1603 return 0;
1604 }
1605
qlcnic_check_npar_opertional(struct qlcnic_adapter * adapter)1606 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1607 {
1608 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1609 u32 npar_state;
1610
1611 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1612 return 0;
1613
1614 npar_state = QLC_SHARED_REG_RD32(adapter,
1615 QLCNIC_CRB_DEV_NPAR_STATE);
1616 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1617 msleep(1000);
1618 npar_state = QLC_SHARED_REG_RD32(adapter,
1619 QLCNIC_CRB_DEV_NPAR_STATE);
1620 }
1621 if (!npar_opt_timeo) {
1622 dev_err(&adapter->pdev->dev,
1623 "Waiting for NPAR state to operational timeout\n");
1624 return -EIO;
1625 }
1626 return 0;
1627 }
1628
1629 static int
qlcnic_set_mgmt_operations(struct qlcnic_adapter * adapter)1630 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1631 {
1632 int err;
1633
1634 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1635 adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1636 return 0;
1637
1638 err = qlcnic_set_default_offload_settings(adapter);
1639 if (err)
1640 return err;
1641
1642 err = qlcnic_reset_npar_config(adapter);
1643 if (err)
1644 return err;
1645
1646 qlcnic_dev_set_npar_ready(adapter);
1647
1648 return err;
1649 }
1650
qlcnic_82xx_start_firmware(struct qlcnic_adapter * adapter)1651 static int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1652 {
1653 int err;
1654
1655 err = qlcnic_can_start_firmware(adapter);
1656 if (err < 0)
1657 return err;
1658 else if (!err)
1659 goto check_fw_status;
1660
1661 if (qlcnic_load_fw_file)
1662 qlcnic_request_firmware(adapter);
1663 else {
1664 err = qlcnic_check_flash_fw_ver(adapter);
1665 if (err)
1666 goto err_out;
1667
1668 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1669 }
1670
1671 err = qlcnic_need_fw_reset(adapter);
1672 if (err == 0)
1673 goto check_fw_status;
1674
1675 err = qlcnic_pinit_from_rom(adapter);
1676 if (err)
1677 goto err_out;
1678
1679 err = qlcnic_load_firmware(adapter);
1680 if (err)
1681 goto err_out;
1682
1683 qlcnic_release_firmware(adapter);
1684 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1685
1686 check_fw_status:
1687 err = qlcnic_check_fw_status(adapter);
1688 if (err)
1689 goto err_out;
1690
1691 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1692 qlcnic_idc_debug_info(adapter, 1);
1693 err = qlcnic_check_eswitch_mode(adapter);
1694 if (err) {
1695 dev_err(&adapter->pdev->dev,
1696 "Memory allocation failed for eswitch\n");
1697 goto err_out;
1698 }
1699 err = qlcnic_set_mgmt_operations(adapter);
1700 if (err)
1701 goto err_out;
1702
1703 qlcnic_check_options(adapter);
1704 adapter->need_fw_reset = 0;
1705
1706 qlcnic_release_firmware(adapter);
1707 return 0;
1708
1709 err_out:
1710 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1711 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1712
1713 qlcnic_release_firmware(adapter);
1714 return err;
1715 }
1716
1717 static int
qlcnic_request_irq(struct qlcnic_adapter * adapter)1718 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1719 {
1720 irq_handler_t handler;
1721 struct qlcnic_host_sds_ring *sds_ring;
1722 struct qlcnic_host_tx_ring *tx_ring;
1723 int err, ring, num_sds_rings;
1724
1725 unsigned long flags = 0;
1726 struct net_device *netdev = adapter->netdev;
1727 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1728
1729 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1730 if (qlcnic_82xx_check(adapter))
1731 handler = qlcnic_tmp_intr;
1732 else
1733 handler = qlcnic_83xx_tmp_intr;
1734 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1735 flags |= IRQF_SHARED;
1736
1737 } else {
1738 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1739 handler = qlcnic_msix_intr;
1740 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1741 handler = qlcnic_msi_intr;
1742 else {
1743 flags |= IRQF_SHARED;
1744 if (qlcnic_82xx_check(adapter))
1745 handler = qlcnic_intr;
1746 else
1747 handler = qlcnic_83xx_intr;
1748 }
1749 }
1750 adapter->irq = netdev->irq;
1751
1752 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1753 if (qlcnic_82xx_check(adapter) ||
1754 (qlcnic_83xx_check(adapter) &&
1755 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1756 num_sds_rings = adapter->drv_sds_rings;
1757 for (ring = 0; ring < num_sds_rings; ring++) {
1758 sds_ring = &recv_ctx->sds_rings[ring];
1759 if (qlcnic_82xx_check(adapter) &&
1760 !qlcnic_check_multi_tx(adapter) &&
1761 (ring == (num_sds_rings - 1))) {
1762 if (!(adapter->flags &
1763 QLCNIC_MSIX_ENABLED))
1764 snprintf(sds_ring->name,
1765 sizeof(sds_ring->name),
1766 "qlcnic");
1767 else
1768 snprintf(sds_ring->name,
1769 sizeof(sds_ring->name),
1770 "%s-tx-0-rx-%d",
1771 netdev->name, ring);
1772 } else {
1773 snprintf(sds_ring->name,
1774 sizeof(sds_ring->name),
1775 "%s-rx-%d",
1776 netdev->name, ring);
1777 }
1778 err = request_irq(sds_ring->irq, handler, flags,
1779 sds_ring->name, sds_ring);
1780 if (err)
1781 return err;
1782 }
1783 }
1784 if ((qlcnic_82xx_check(adapter) &&
1785 qlcnic_check_multi_tx(adapter)) ||
1786 (qlcnic_83xx_check(adapter) &&
1787 (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1788 !(adapter->flags & QLCNIC_TX_INTR_SHARED))) {
1789 handler = qlcnic_msix_tx_intr;
1790 for (ring = 0; ring < adapter->drv_tx_rings;
1791 ring++) {
1792 tx_ring = &adapter->tx_ring[ring];
1793 snprintf(tx_ring->name, sizeof(tx_ring->name),
1794 "%s-tx-%d", netdev->name, ring);
1795 err = request_irq(tx_ring->irq, handler, flags,
1796 tx_ring->name, tx_ring);
1797 if (err)
1798 return err;
1799 }
1800 }
1801 }
1802 return 0;
1803 }
1804
1805 static void
qlcnic_free_irq(struct qlcnic_adapter * adapter)1806 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1807 {
1808 int ring;
1809 struct qlcnic_host_sds_ring *sds_ring;
1810 struct qlcnic_host_tx_ring *tx_ring;
1811
1812 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1813
1814 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1815 if (qlcnic_82xx_check(adapter) ||
1816 (qlcnic_83xx_check(adapter) &&
1817 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1818 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1819 sds_ring = &recv_ctx->sds_rings[ring];
1820 free_irq(sds_ring->irq, sds_ring);
1821 }
1822 }
1823 if ((qlcnic_83xx_check(adapter) &&
1824 !(adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
1825 (qlcnic_82xx_check(adapter) &&
1826 qlcnic_check_multi_tx(adapter))) {
1827 for (ring = 0; ring < adapter->drv_tx_rings;
1828 ring++) {
1829 tx_ring = &adapter->tx_ring[ring];
1830 if (tx_ring->irq)
1831 free_irq(tx_ring->irq, tx_ring);
1832 }
1833 }
1834 }
1835 }
1836
qlcnic_get_lro_mss_capability(struct qlcnic_adapter * adapter)1837 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1838 {
1839 u32 capab = 0;
1840
1841 if (qlcnic_82xx_check(adapter)) {
1842 if (adapter->ahw->extra_capability[0] &
1843 QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1844 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1845 } else {
1846 capab = adapter->ahw->capabilities;
1847 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1848 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1849 }
1850 }
1851
qlcnic_config_def_intr_coalesce(struct qlcnic_adapter * adapter)1852 static int qlcnic_config_def_intr_coalesce(struct qlcnic_adapter *adapter)
1853 {
1854 struct qlcnic_hardware_context *ahw = adapter->ahw;
1855 int err;
1856
1857 /* Initialize interrupt coalesce parameters */
1858 ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1859
1860 if (qlcnic_83xx_check(adapter)) {
1861 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
1862 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1863 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1864 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1865 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1866
1867 err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
1868 } else {
1869 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1870 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1871 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1872
1873 err = qlcnic_82xx_set_rx_coalesce(adapter);
1874 }
1875
1876 return err;
1877 }
1878
__qlcnic_up(struct qlcnic_adapter * adapter,struct net_device * netdev)1879 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1880 {
1881 int ring;
1882 struct qlcnic_host_rds_ring *rds_ring;
1883
1884 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1885 return -EIO;
1886
1887 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1888 return 0;
1889
1890 if (qlcnic_set_eswitch_port_config(adapter))
1891 return -EIO;
1892
1893 qlcnic_get_lro_mss_capability(adapter);
1894
1895 if (qlcnic_fw_create_ctx(adapter))
1896 return -EIO;
1897
1898 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1899 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1900 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1901 }
1902
1903 qlcnic_set_multi(netdev);
1904 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1905
1906 adapter->ahw->linkup = 0;
1907
1908 if (adapter->drv_sds_rings > 1)
1909 qlcnic_config_rss(adapter, 1);
1910
1911 qlcnic_config_def_intr_coalesce(adapter);
1912
1913 if (netdev->features & NETIF_F_LRO)
1914 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1915
1916 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1917 qlcnic_napi_enable(adapter);
1918
1919 qlcnic_linkevent_request(adapter, 1);
1920
1921 adapter->ahw->reset_context = 0;
1922 netif_tx_start_all_queues(netdev);
1923 return 0;
1924 }
1925
qlcnic_up(struct qlcnic_adapter * adapter,struct net_device * netdev)1926 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1927 {
1928 int err = 0;
1929
1930 rtnl_lock();
1931 if (netif_running(netdev))
1932 err = __qlcnic_up(adapter, netdev);
1933 rtnl_unlock();
1934
1935 return err;
1936 }
1937
__qlcnic_down(struct qlcnic_adapter * adapter,struct net_device * netdev)1938 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1939 {
1940 int ring;
1941
1942 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1943 return;
1944
1945 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1946 return;
1947
1948 smp_mb();
1949 netif_carrier_off(netdev);
1950 adapter->ahw->linkup = 0;
1951 netif_tx_disable(netdev);
1952
1953 qlcnic_free_mac_list(adapter);
1954
1955 if (adapter->fhash.fnum)
1956 qlcnic_delete_lb_filters(adapter);
1957
1958 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1959 if (qlcnic_sriov_vf_check(adapter))
1960 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1961
1962 qlcnic_napi_disable(adapter);
1963
1964 qlcnic_fw_destroy_ctx(adapter);
1965 adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1966
1967 qlcnic_reset_rx_buffers_list(adapter);
1968
1969 for (ring = 0; ring < adapter->drv_tx_rings; ring++)
1970 qlcnic_release_tx_buffers(adapter, &adapter->tx_ring[ring]);
1971 }
1972
1973 /* Usage: During suspend and firmware recovery module */
1974
qlcnic_down(struct qlcnic_adapter * adapter,struct net_device * netdev)1975 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1976 {
1977 rtnl_lock();
1978 if (netif_running(netdev))
1979 __qlcnic_down(adapter, netdev);
1980 rtnl_unlock();
1981
1982 }
1983
1984 int
qlcnic_attach(struct qlcnic_adapter * adapter)1985 qlcnic_attach(struct qlcnic_adapter *adapter)
1986 {
1987 struct net_device *netdev = adapter->netdev;
1988 struct pci_dev *pdev = adapter->pdev;
1989 int err;
1990
1991 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1992 return 0;
1993
1994 err = qlcnic_napi_add(adapter, netdev);
1995 if (err)
1996 return err;
1997
1998 err = qlcnic_alloc_sw_resources(adapter);
1999 if (err) {
2000 dev_err(&pdev->dev, "Error in setting sw resources\n");
2001 goto err_out_napi_del;
2002 }
2003
2004 err = qlcnic_alloc_hw_resources(adapter);
2005 if (err) {
2006 dev_err(&pdev->dev, "Error in setting hw resources\n");
2007 goto err_out_free_sw;
2008 }
2009
2010 err = qlcnic_request_irq(adapter);
2011 if (err) {
2012 dev_err(&pdev->dev, "failed to setup interrupt\n");
2013 goto err_out_free_hw;
2014 }
2015
2016 qlcnic_create_sysfs_entries(adapter);
2017
2018 #ifdef CONFIG_QLCNIC_VXLAN
2019 if (qlcnic_encap_rx_offload(adapter))
2020 vxlan_get_rx_port(netdev);
2021 #endif
2022
2023 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
2024 return 0;
2025
2026 err_out_free_hw:
2027 qlcnic_free_hw_resources(adapter);
2028 err_out_free_sw:
2029 qlcnic_free_sw_resources(adapter);
2030 err_out_napi_del:
2031 qlcnic_napi_del(adapter);
2032 return err;
2033 }
2034
qlcnic_detach(struct qlcnic_adapter * adapter)2035 void qlcnic_detach(struct qlcnic_adapter *adapter)
2036 {
2037 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2038 return;
2039
2040 qlcnic_remove_sysfs_entries(adapter);
2041
2042 qlcnic_free_hw_resources(adapter);
2043 qlcnic_release_rx_buffers(adapter);
2044 qlcnic_free_irq(adapter);
2045 qlcnic_napi_del(adapter);
2046 qlcnic_free_sw_resources(adapter);
2047
2048 adapter->is_up = 0;
2049 }
2050
qlcnic_diag_free_res(struct net_device * netdev,int drv_sds_rings)2051 void qlcnic_diag_free_res(struct net_device *netdev, int drv_sds_rings)
2052 {
2053 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2054 struct qlcnic_host_sds_ring *sds_ring;
2055 int drv_tx_rings = adapter->drv_tx_rings;
2056 int ring;
2057
2058 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
2059 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2060 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2061 sds_ring = &adapter->recv_ctx->sds_rings[ring];
2062 qlcnic_disable_sds_intr(adapter, sds_ring);
2063 }
2064 }
2065
2066 qlcnic_fw_destroy_ctx(adapter);
2067
2068 qlcnic_detach(adapter);
2069
2070 adapter->ahw->diag_test = 0;
2071 adapter->drv_sds_rings = drv_sds_rings;
2072 adapter->drv_tx_rings = drv_tx_rings;
2073
2074 if (qlcnic_attach(adapter))
2075 goto out;
2076
2077 if (netif_running(netdev))
2078 __qlcnic_up(adapter, netdev);
2079 out:
2080 netif_device_attach(netdev);
2081 }
2082
qlcnic_alloc_adapter_resources(struct qlcnic_adapter * adapter)2083 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
2084 {
2085 struct qlcnic_hardware_context *ahw = adapter->ahw;
2086 int err = 0;
2087
2088 adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
2089 GFP_KERNEL);
2090 if (!adapter->recv_ctx) {
2091 err = -ENOMEM;
2092 goto err_out;
2093 }
2094
2095 if (qlcnic_83xx_check(adapter)) {
2096 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2097 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
2098 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
2099 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2100 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2101 } else {
2102 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
2103 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
2104 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
2105 }
2106
2107 /* clear stats */
2108 memset(&adapter->stats, 0, sizeof(adapter->stats));
2109 err_out:
2110 return err;
2111 }
2112
qlcnic_free_adapter_resources(struct qlcnic_adapter * adapter)2113 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
2114 {
2115 struct qlcnic_fw_dump *fw_dump = &adapter->ahw->fw_dump;
2116
2117 kfree(adapter->recv_ctx);
2118 adapter->recv_ctx = NULL;
2119
2120 if (fw_dump->tmpl_hdr) {
2121 vfree(fw_dump->tmpl_hdr);
2122 fw_dump->tmpl_hdr = NULL;
2123 }
2124
2125 if (fw_dump->dma_buffer) {
2126 dma_free_coherent(&adapter->pdev->dev, QLC_PEX_DMA_READ_SIZE,
2127 fw_dump->dma_buffer, fw_dump->phys_addr);
2128 fw_dump->dma_buffer = NULL;
2129 }
2130
2131 kfree(adapter->ahw->reset.buff);
2132 adapter->ahw->fw_dump.tmpl_hdr = NULL;
2133 }
2134
qlcnic_diag_alloc_res(struct net_device * netdev,int test)2135 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
2136 {
2137 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2138 struct qlcnic_host_sds_ring *sds_ring;
2139 struct qlcnic_host_rds_ring *rds_ring;
2140 int ring;
2141 int ret;
2142
2143 netif_device_detach(netdev);
2144
2145 if (netif_running(netdev))
2146 __qlcnic_down(adapter, netdev);
2147
2148 qlcnic_detach(adapter);
2149
2150 adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
2151 adapter->ahw->diag_test = test;
2152 adapter->ahw->linkup = 0;
2153
2154 ret = qlcnic_attach(adapter);
2155 if (ret) {
2156 netif_device_attach(netdev);
2157 return ret;
2158 }
2159
2160 ret = qlcnic_fw_create_ctx(adapter);
2161 if (ret) {
2162 qlcnic_detach(adapter);
2163 netif_device_attach(netdev);
2164 return ret;
2165 }
2166
2167 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
2168 rds_ring = &adapter->recv_ctx->rds_rings[ring];
2169 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
2170 }
2171
2172 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
2173 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
2174 sds_ring = &adapter->recv_ctx->sds_rings[ring];
2175 qlcnic_enable_sds_intr(adapter, sds_ring);
2176 }
2177 }
2178
2179 if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
2180 adapter->ahw->loopback_state = 0;
2181 qlcnic_linkevent_request(adapter, 1);
2182 }
2183
2184 set_bit(__QLCNIC_DEV_UP, &adapter->state);
2185
2186 return 0;
2187 }
2188
2189 /* Reset context in hardware only */
2190 static int
qlcnic_reset_hw_context(struct qlcnic_adapter * adapter)2191 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
2192 {
2193 struct net_device *netdev = adapter->netdev;
2194
2195 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2196 return -EBUSY;
2197
2198 netif_device_detach(netdev);
2199
2200 qlcnic_down(adapter, netdev);
2201
2202 qlcnic_up(adapter, netdev);
2203
2204 netif_device_attach(netdev);
2205
2206 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2207 netdev_info(adapter->netdev, "%s: soft reset complete\n", __func__);
2208 return 0;
2209 }
2210
2211 int
qlcnic_reset_context(struct qlcnic_adapter * adapter)2212 qlcnic_reset_context(struct qlcnic_adapter *adapter)
2213 {
2214 int err = 0;
2215 struct net_device *netdev = adapter->netdev;
2216
2217 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2218 return -EBUSY;
2219
2220 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
2221
2222 netif_device_detach(netdev);
2223
2224 if (netif_running(netdev))
2225 __qlcnic_down(adapter, netdev);
2226
2227 qlcnic_detach(adapter);
2228
2229 if (netif_running(netdev)) {
2230 err = qlcnic_attach(adapter);
2231 if (!err) {
2232 __qlcnic_up(adapter, netdev);
2233 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2234 }
2235 }
2236
2237 netif_device_attach(netdev);
2238 }
2239
2240 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2241 return err;
2242 }
2243
qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter * adapter)2244 static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
2245 {
2246 struct qlcnic_hardware_context *ahw = adapter->ahw;
2247 u16 act_pci_fn = ahw->total_nic_func;
2248 u16 count;
2249
2250 ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
2251 if (act_pci_fn <= 2)
2252 count = (QLCNIC_MAX_UC_COUNT - QLCNIC_MAX_MC_COUNT) /
2253 act_pci_fn;
2254 else
2255 count = (QLCNIC_LB_MAX_FILTERS - QLCNIC_MAX_MC_COUNT) /
2256 act_pci_fn;
2257 ahw->max_uc_count = count;
2258 }
2259
qlcnic_set_real_num_queues(struct qlcnic_adapter * adapter,u8 tx_queues,u8 rx_queues)2260 static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter,
2261 u8 tx_queues, u8 rx_queues)
2262 {
2263 struct net_device *netdev = adapter->netdev;
2264 int err = 0;
2265
2266 if (tx_queues) {
2267 err = netif_set_real_num_tx_queues(netdev, tx_queues);
2268 if (err) {
2269 netdev_err(netdev, "failed to set %d Tx queues\n",
2270 tx_queues);
2271 return err;
2272 }
2273 }
2274
2275 if (rx_queues) {
2276 err = netif_set_real_num_rx_queues(netdev, rx_queues);
2277 if (err)
2278 netdev_err(netdev, "failed to set %d Rx queues\n",
2279 rx_queues);
2280 }
2281
2282 return err;
2283 }
2284
2285 int
qlcnic_setup_netdev(struct qlcnic_adapter * adapter,struct net_device * netdev,int pci_using_dac)2286 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
2287 int pci_using_dac)
2288 {
2289 int err;
2290 struct pci_dev *pdev = adapter->pdev;
2291
2292 adapter->rx_csum = 1;
2293 adapter->ahw->mc_enabled = 0;
2294 qlcnic_set_mac_filter_count(adapter);
2295
2296 netdev->netdev_ops = &qlcnic_netdev_ops;
2297 netdev->watchdog_timeo = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
2298
2299 qlcnic_change_mtu(netdev, netdev->mtu);
2300
2301 netdev->ethtool_ops = (qlcnic_sriov_vf_check(adapter)) ?
2302 &qlcnic_sriov_vf_ethtool_ops : &qlcnic_ethtool_ops;
2303
2304 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
2305 NETIF_F_IPV6_CSUM | NETIF_F_GRO |
2306 NETIF_F_HW_VLAN_CTAG_RX);
2307 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
2308 NETIF_F_IPV6_CSUM);
2309
2310 if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
2311 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
2312 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
2313 }
2314
2315 if (pci_using_dac) {
2316 netdev->features |= NETIF_F_HIGHDMA;
2317 netdev->vlan_features |= NETIF_F_HIGHDMA;
2318 }
2319
2320 if (qlcnic_vlan_tx_check(adapter))
2321 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
2322
2323 if (qlcnic_sriov_vf_check(adapter))
2324 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
2325
2326 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
2327 netdev->features |= NETIF_F_LRO;
2328
2329 if (qlcnic_encap_tx_offload(adapter)) {
2330 netdev->features |= NETIF_F_GSO_UDP_TUNNEL;
2331
2332 /* encapsulation Tx offload supported by Adapter */
2333 netdev->hw_enc_features = NETIF_F_IP_CSUM |
2334 NETIF_F_GSO_UDP_TUNNEL |
2335 NETIF_F_TSO |
2336 NETIF_F_TSO6;
2337 }
2338
2339 if (qlcnic_encap_rx_offload(adapter))
2340 netdev->hw_enc_features |= NETIF_F_RXCSUM;
2341
2342 netdev->hw_features = netdev->features;
2343 netdev->priv_flags |= IFF_UNICAST_FLT;
2344 netdev->irq = adapter->msix_entries[0].vector;
2345
2346 err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings,
2347 adapter->drv_sds_rings);
2348 if (err)
2349 return err;
2350
2351 qlcnic_dcb_init_dcbnl_ops(adapter->dcb);
2352
2353 err = register_netdev(netdev);
2354 if (err) {
2355 dev_err(&pdev->dev, "failed to register net device\n");
2356 return err;
2357 }
2358
2359 return 0;
2360 }
2361
qlcnic_set_dma_mask(struct pci_dev * pdev,int * pci_using_dac)2362 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
2363 {
2364 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
2365 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
2366 *pci_using_dac = 1;
2367 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
2368 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
2369 *pci_using_dac = 0;
2370 else {
2371 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
2372 return -EIO;
2373 }
2374
2375 return 0;
2376 }
2377
qlcnic_free_tx_rings(struct qlcnic_adapter * adapter)2378 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
2379 {
2380 int ring;
2381 struct qlcnic_host_tx_ring *tx_ring;
2382
2383 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2384 tx_ring = &adapter->tx_ring[ring];
2385 if (tx_ring) {
2386 vfree(tx_ring->cmd_buf_arr);
2387 tx_ring->cmd_buf_arr = NULL;
2388 }
2389 }
2390 kfree(adapter->tx_ring);
2391 }
2392
qlcnic_alloc_tx_rings(struct qlcnic_adapter * adapter,struct net_device * netdev)2393 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
2394 struct net_device *netdev)
2395 {
2396 int ring, vector, index;
2397 struct qlcnic_host_tx_ring *tx_ring;
2398 struct qlcnic_cmd_buffer *cmd_buf_arr;
2399
2400 tx_ring = kcalloc(adapter->drv_tx_rings,
2401 sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
2402 if (tx_ring == NULL)
2403 return -ENOMEM;
2404
2405 adapter->tx_ring = tx_ring;
2406
2407 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2408 tx_ring = &adapter->tx_ring[ring];
2409 tx_ring->num_desc = adapter->num_txd;
2410 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
2411 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
2412 if (cmd_buf_arr == NULL) {
2413 qlcnic_free_tx_rings(adapter);
2414 return -ENOMEM;
2415 }
2416 tx_ring->cmd_buf_arr = cmd_buf_arr;
2417 spin_lock_init(&tx_ring->tx_clean_lock);
2418 }
2419
2420 if (qlcnic_83xx_check(adapter) ||
2421 (qlcnic_82xx_check(adapter) && qlcnic_check_multi_tx(adapter))) {
2422 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
2423 tx_ring = &adapter->tx_ring[ring];
2424 tx_ring->adapter = adapter;
2425 if (adapter->flags & QLCNIC_MSIX_ENABLED) {
2426 index = adapter->drv_sds_rings + ring;
2427 vector = adapter->msix_entries[index].vector;
2428 tx_ring->irq = vector;
2429 }
2430 }
2431 }
2432
2433 return 0;
2434 }
2435
qlcnic_set_drv_version(struct qlcnic_adapter * adapter)2436 void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
2437 {
2438 struct qlcnic_hardware_context *ahw = adapter->ahw;
2439 u32 fw_cmd = 0;
2440
2441 if (qlcnic_82xx_check(adapter))
2442 fw_cmd = QLCNIC_CMD_82XX_SET_DRV_VER;
2443 else if (qlcnic_83xx_check(adapter))
2444 fw_cmd = QLCNIC_CMD_83XX_SET_DRV_VER;
2445
2446 if (ahw->extra_capability[0] & QLCNIC_FW_CAPABILITY_SET_DRV_VER)
2447 qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
2448 }
2449
2450 /* Reset firmware API lock */
qlcnic_reset_api_lock(struct qlcnic_adapter * adapter)2451 static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
2452 {
2453 qlcnic_api_lock(adapter);
2454 qlcnic_api_unlock(adapter);
2455 }
2456
2457
2458 static int
qlcnic_probe(struct pci_dev * pdev,const struct pci_device_id * ent)2459 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
2460 {
2461 struct net_device *netdev = NULL;
2462 struct qlcnic_adapter *adapter = NULL;
2463 struct qlcnic_hardware_context *ahw;
2464 int err, pci_using_dac = -1;
2465 char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
2466
2467 err = pci_enable_device(pdev);
2468 if (err)
2469 return err;
2470
2471 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
2472 err = -ENODEV;
2473 goto err_out_disable_pdev;
2474 }
2475
2476 err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
2477 if (err)
2478 goto err_out_disable_pdev;
2479
2480 err = pci_request_regions(pdev, qlcnic_driver_name);
2481 if (err)
2482 goto err_out_disable_pdev;
2483
2484 pci_set_master(pdev);
2485 pci_enable_pcie_error_reporting(pdev);
2486
2487 ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
2488 if (!ahw) {
2489 err = -ENOMEM;
2490 goto err_out_free_res;
2491 }
2492
2493 switch (ent->device) {
2494 case PCI_DEVICE_ID_QLOGIC_QLE824X:
2495 ahw->hw_ops = &qlcnic_hw_ops;
2496 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
2497 break;
2498 case PCI_DEVICE_ID_QLOGIC_QLE834X:
2499 case PCI_DEVICE_ID_QLOGIC_QLE8830:
2500 case PCI_DEVICE_ID_QLOGIC_QLE844X:
2501 qlcnic_83xx_register_map(ahw);
2502 break;
2503 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
2504 case PCI_DEVICE_ID_QLOGIC_VF_QLE8C30:
2505 case PCI_DEVICE_ID_QLOGIC_VF_QLE844X:
2506 qlcnic_sriov_vf_register_map(ahw);
2507 break;
2508 default:
2509 goto err_out_free_hw_res;
2510 }
2511
2512 err = qlcnic_setup_pci_map(pdev, ahw);
2513 if (err)
2514 goto err_out_free_hw_res;
2515
2516 netdev = alloc_etherdev_mq(sizeof(struct qlcnic_adapter),
2517 QLCNIC_MAX_TX_RINGS);
2518 if (!netdev) {
2519 err = -ENOMEM;
2520 goto err_out_iounmap;
2521 }
2522
2523 SET_NETDEV_DEV(netdev, &pdev->dev);
2524
2525 adapter = netdev_priv(netdev);
2526 adapter->netdev = netdev;
2527 adapter->pdev = pdev;
2528 adapter->ahw = ahw;
2529
2530 adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2531 if (adapter->qlcnic_wq == NULL) {
2532 err = -ENOMEM;
2533 dev_err(&pdev->dev, "Failed to create workqueue\n");
2534 goto err_out_free_netdev;
2535 }
2536
2537 err = qlcnic_alloc_adapter_resources(adapter);
2538 if (err)
2539 goto err_out_free_wq;
2540
2541 adapter->dev_rst_time = jiffies;
2542 ahw->revision_id = pdev->revision;
2543 ahw->max_vnic_func = qlcnic_get_vnic_func_count(adapter);
2544 if (qlcnic_mac_learn == FDB_MAC_LEARN)
2545 adapter->fdb_mac_learn = true;
2546 else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2547 adapter->drv_mac_learn = true;
2548
2549 rwlock_init(&adapter->ahw->crb_lock);
2550 mutex_init(&adapter->ahw->mem_lock);
2551
2552 INIT_LIST_HEAD(&adapter->mac_list);
2553
2554 qlcnic_register_dcb(adapter);
2555
2556 if (qlcnic_82xx_check(adapter)) {
2557 qlcnic_check_vf(adapter, ent);
2558 adapter->portnum = adapter->ahw->pci_func;
2559 qlcnic_reset_api_lock(adapter);
2560 err = qlcnic_start_firmware(adapter);
2561 if (err) {
2562 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"
2563 "\t\tIf reboot doesn't help, try flashing the card\n");
2564 goto err_out_maintenance_mode;
2565 }
2566
2567 /* compute and set default and max tx/sds rings */
2568 if (adapter->ahw->msix_supported) {
2569 if (qlcnic_check_multi_tx_capability(adapter) == 1)
2570 qlcnic_set_tx_ring_count(adapter,
2571 QLCNIC_SINGLE_RING);
2572 else
2573 qlcnic_set_tx_ring_count(adapter,
2574 QLCNIC_DEF_TX_RINGS);
2575 qlcnic_set_sds_ring_count(adapter,
2576 QLCNIC_DEF_SDS_RINGS);
2577 } else {
2578 qlcnic_set_tx_ring_count(adapter, QLCNIC_SINGLE_RING);
2579 qlcnic_set_sds_ring_count(adapter, QLCNIC_SINGLE_RING);
2580 }
2581
2582 err = qlcnic_setup_idc_param(adapter);
2583 if (err)
2584 goto err_out_free_hw;
2585
2586 adapter->flags |= QLCNIC_NEED_FLR;
2587
2588 } else if (qlcnic_83xx_check(adapter)) {
2589 qlcnic_83xx_check_vf(adapter, ent);
2590 adapter->portnum = adapter->ahw->pci_func;
2591 err = qlcnic_83xx_init(adapter, pci_using_dac);
2592 if (err) {
2593 switch (err) {
2594 case -ENOTRECOVERABLE:
2595 dev_err(&pdev->dev, "Adapter initialization failed due to a faulty hardware\n");
2596 dev_err(&pdev->dev, "Please replace the adapter with new one and return the faulty adapter for repair\n");
2597 goto err_out_free_hw;
2598 case -ENOMEM:
2599 dev_err(&pdev->dev, "Adapter initialization failed. Please reboot\n");
2600 goto err_out_free_hw;
2601 case -EOPNOTSUPP:
2602 dev_err(&pdev->dev, "Adapter initialization failed\n");
2603 goto err_out_free_hw;
2604 default:
2605 dev_err(&pdev->dev, "Adapter initialization failed. Driver will load in maintenance mode to recover the adapter using the application\n");
2606 goto err_out_maintenance_mode;
2607 }
2608 }
2609
2610 if (qlcnic_sriov_vf_check(adapter))
2611 return 0;
2612 } else {
2613 dev_err(&pdev->dev,
2614 "%s: failed. Please Reboot\n", __func__);
2615 err = -ENODEV;
2616 goto err_out_free_hw;
2617 }
2618
2619 if (qlcnic_read_mac_addr(adapter))
2620 dev_warn(&pdev->dev, "failed to read mac addr\n");
2621
2622 qlcnic_read_phys_port_id(adapter);
2623
2624 if (adapter->portnum == 0) {
2625 qlcnic_get_board_name(adapter, board_name);
2626
2627 pr_info("%s: %s Board Chip rev 0x%x\n",
2628 module_name(THIS_MODULE),
2629 board_name, adapter->ahw->revision_id);
2630 }
2631
2632 if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2633 !!qlcnic_use_msi)
2634 dev_warn(&pdev->dev,
2635 "Device does not support MSI interrupts\n");
2636
2637 if (qlcnic_82xx_check(adapter)) {
2638 qlcnic_dcb_enable(adapter->dcb);
2639 qlcnic_dcb_get_info(adapter->dcb);
2640 err = qlcnic_setup_intr(adapter);
2641
2642 if (err) {
2643 dev_err(&pdev->dev, "Failed to setup interrupt\n");
2644 goto err_out_disable_msi;
2645 }
2646 }
2647
2648 err = qlcnic_get_act_pci_func(adapter);
2649 if (err)
2650 goto err_out_disable_mbx_intr;
2651
2652 if (adapter->portnum == 0)
2653 qlcnic_set_drv_version(adapter);
2654
2655 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2656 if (err)
2657 goto err_out_disable_mbx_intr;
2658
2659 pci_set_drvdata(pdev, adapter);
2660
2661 if (qlcnic_82xx_check(adapter))
2662 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2663 FW_POLL_DELAY);
2664
2665 switch (adapter->ahw->port_type) {
2666 case QLCNIC_GBE:
2667 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2668 adapter->netdev->name);
2669 break;
2670 case QLCNIC_XGBE:
2671 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2672 adapter->netdev->name);
2673 break;
2674 }
2675
2676 if (adapter->drv_mac_learn)
2677 qlcnic_alloc_lb_filters_mem(adapter);
2678
2679 qlcnic_add_sysfs(adapter);
2680 qlcnic_register_hwmon_dev(adapter);
2681 return 0;
2682
2683 err_out_disable_mbx_intr:
2684 if (qlcnic_83xx_check(adapter))
2685 qlcnic_83xx_free_mbx_intr(adapter);
2686
2687 err_out_disable_msi:
2688 qlcnic_teardown_intr(adapter);
2689 qlcnic_cancel_idc_work(adapter);
2690 qlcnic_clr_all_drv_state(adapter, 0);
2691
2692 err_out_free_hw:
2693 qlcnic_free_adapter_resources(adapter);
2694
2695 err_out_free_wq:
2696 destroy_workqueue(adapter->qlcnic_wq);
2697
2698 err_out_free_netdev:
2699 free_netdev(netdev);
2700
2701 err_out_iounmap:
2702 qlcnic_cleanup_pci_map(ahw);
2703
2704 err_out_free_hw_res:
2705 kfree(ahw);
2706
2707 err_out_free_res:
2708 pci_release_regions(pdev);
2709
2710 err_out_disable_pdev:
2711 pci_disable_device(pdev);
2712 return err;
2713
2714 err_out_maintenance_mode:
2715 set_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state);
2716 netdev->netdev_ops = &qlcnic_netdev_failed_ops;
2717 netdev->ethtool_ops = &qlcnic_ethtool_failed_ops;
2718 ahw->port_type = QLCNIC_XGBE;
2719
2720 if (qlcnic_83xx_check(adapter))
2721 adapter->tgt_status_reg = NULL;
2722 else
2723 ahw->board_type = QLCNIC_BRDTYPE_P3P_10G_SFP_PLUS;
2724
2725 err = register_netdev(netdev);
2726
2727 if (err) {
2728 dev_err(&pdev->dev, "Failed to register net device\n");
2729 qlcnic_clr_all_drv_state(adapter, 0);
2730 goto err_out_free_hw;
2731 }
2732
2733 pci_set_drvdata(pdev, adapter);
2734 qlcnic_add_sysfs(adapter);
2735
2736 return 0;
2737 }
2738
qlcnic_remove(struct pci_dev * pdev)2739 static void qlcnic_remove(struct pci_dev *pdev)
2740 {
2741 struct qlcnic_adapter *adapter;
2742 struct net_device *netdev;
2743 struct qlcnic_hardware_context *ahw;
2744
2745 adapter = pci_get_drvdata(pdev);
2746 if (adapter == NULL)
2747 return;
2748
2749 netdev = adapter->netdev;
2750
2751 qlcnic_cancel_idc_work(adapter);
2752 qlcnic_sriov_pf_disable(adapter);
2753 ahw = adapter->ahw;
2754
2755 unregister_netdev(netdev);
2756 qlcnic_sriov_cleanup(adapter);
2757
2758 if (qlcnic_83xx_check(adapter)) {
2759 qlcnic_83xx_initialize_nic(adapter, 0);
2760 cancel_delayed_work_sync(&adapter->idc_aen_work);
2761 qlcnic_83xx_free_mbx_intr(adapter);
2762 qlcnic_83xx_detach_mailbox_work(adapter);
2763 qlcnic_83xx_free_mailbox(ahw->mailbox);
2764 kfree(ahw->fw_info);
2765 }
2766
2767 qlcnic_dcb_free(adapter->dcb);
2768 qlcnic_detach(adapter);
2769 kfree(adapter->npars);
2770 kfree(adapter->eswitch);
2771
2772 if (qlcnic_82xx_check(adapter))
2773 qlcnic_clr_all_drv_state(adapter, 0);
2774
2775 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2776
2777 qlcnic_free_lb_filters_mem(adapter);
2778
2779 qlcnic_teardown_intr(adapter);
2780
2781 qlcnic_remove_sysfs(adapter);
2782
2783 qlcnic_unregister_hwmon_dev(adapter);
2784
2785 qlcnic_cleanup_pci_map(adapter->ahw);
2786
2787 qlcnic_release_firmware(adapter);
2788
2789 pci_disable_pcie_error_reporting(pdev);
2790 pci_release_regions(pdev);
2791 pci_disable_device(pdev);
2792
2793 if (adapter->qlcnic_wq) {
2794 destroy_workqueue(adapter->qlcnic_wq);
2795 adapter->qlcnic_wq = NULL;
2796 }
2797
2798 qlcnic_free_adapter_resources(adapter);
2799 kfree(ahw);
2800 free_netdev(netdev);
2801 }
2802
qlcnic_shutdown(struct pci_dev * pdev)2803 static void qlcnic_shutdown(struct pci_dev *pdev)
2804 {
2805 if (__qlcnic_shutdown(pdev))
2806 return;
2807
2808 pci_disable_device(pdev);
2809 }
2810
2811 #ifdef CONFIG_PM
qlcnic_suspend(struct pci_dev * pdev,pm_message_t state)2812 static int qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2813 {
2814 int retval;
2815
2816 retval = __qlcnic_shutdown(pdev);
2817 if (retval)
2818 return retval;
2819
2820 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2821 return 0;
2822 }
2823
qlcnic_resume(struct pci_dev * pdev)2824 static int qlcnic_resume(struct pci_dev *pdev)
2825 {
2826 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2827 int err;
2828
2829 err = pci_enable_device(pdev);
2830 if (err)
2831 return err;
2832
2833 pci_set_power_state(pdev, PCI_D0);
2834 pci_set_master(pdev);
2835 pci_restore_state(pdev);
2836
2837 return __qlcnic_resume(adapter);
2838 }
2839 #endif
2840
qlcnic_open(struct net_device * netdev)2841 static int qlcnic_open(struct net_device *netdev)
2842 {
2843 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2844 int err;
2845
2846 if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
2847 netdev_err(netdev, "%s: Device is in non-operational state\n",
2848 __func__);
2849
2850 return -EIO;
2851 }
2852
2853 netif_carrier_off(netdev);
2854
2855 err = qlcnic_attach(adapter);
2856 if (err)
2857 return err;
2858
2859 err = __qlcnic_up(adapter, netdev);
2860 if (err)
2861 qlcnic_detach(adapter);
2862
2863 return err;
2864 }
2865
2866 /*
2867 * qlcnic_close - Disables a network interface entry point
2868 */
qlcnic_close(struct net_device * netdev)2869 static int qlcnic_close(struct net_device *netdev)
2870 {
2871 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2872
2873 __qlcnic_down(adapter, netdev);
2874
2875 return 0;
2876 }
2877
2878 #define QLCNIC_VF_LB_BUCKET_SIZE 1
2879
qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter * adapter)2880 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2881 {
2882 void *head;
2883 int i;
2884 struct net_device *netdev = adapter->netdev;
2885 u32 filter_size = 0;
2886 u16 act_pci_func = 0;
2887
2888 if (adapter->fhash.fmax && adapter->fhash.fhead)
2889 return;
2890
2891 act_pci_func = adapter->ahw->total_nic_func;
2892 spin_lock_init(&adapter->mac_learn_lock);
2893 spin_lock_init(&adapter->rx_mac_learn_lock);
2894
2895 if (qlcnic_sriov_vf_check(adapter)) {
2896 filter_size = QLCNIC_83XX_SRIOV_VF_MAX_MAC - 1;
2897 adapter->fhash.fbucket_size = QLCNIC_VF_LB_BUCKET_SIZE;
2898 } else if (qlcnic_82xx_check(adapter)) {
2899 filter_size = QLCNIC_LB_MAX_FILTERS;
2900 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2901 } else {
2902 filter_size = QLC_83XX_LB_MAX_FILTERS;
2903 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2904 }
2905
2906 head = kcalloc(adapter->fhash.fbucket_size,
2907 sizeof(struct hlist_head), GFP_ATOMIC);
2908
2909 if (!head)
2910 return;
2911
2912 adapter->fhash.fmax = (filter_size / act_pci_func);
2913 adapter->fhash.fhead = head;
2914
2915 netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2916 act_pci_func, adapter->fhash.fmax);
2917
2918 for (i = 0; i < adapter->fhash.fbucket_size; i++)
2919 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2920
2921 adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2922
2923 head = kcalloc(adapter->rx_fhash.fbucket_size,
2924 sizeof(struct hlist_head), GFP_ATOMIC);
2925
2926 if (!head)
2927 return;
2928
2929 adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2930 adapter->rx_fhash.fhead = head;
2931
2932 for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2933 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2934 }
2935
qlcnic_free_lb_filters_mem(struct qlcnic_adapter * adapter)2936 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2937 {
2938 if (adapter->fhash.fmax)
2939 kfree(adapter->fhash.fhead);
2940
2941 adapter->fhash.fhead = NULL;
2942 adapter->fhash.fmax = 0;
2943
2944 if (adapter->rx_fhash.fmax)
2945 kfree(adapter->rx_fhash.fhead);
2946
2947 adapter->rx_fhash.fmax = 0;
2948 adapter->rx_fhash.fhead = NULL;
2949 }
2950
qlcnic_check_temp(struct qlcnic_adapter * adapter)2951 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2952 {
2953 struct net_device *netdev = adapter->netdev;
2954 u32 temp_state, temp_val, temp = 0;
2955 int rv = 0;
2956
2957 if (qlcnic_83xx_check(adapter))
2958 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2959
2960 if (qlcnic_82xx_check(adapter))
2961 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2962
2963 temp_state = qlcnic_get_temp_state(temp);
2964 temp_val = qlcnic_get_temp_val(temp);
2965
2966 if (temp_state == QLCNIC_TEMP_PANIC) {
2967 dev_err(&netdev->dev,
2968 "Device temperature %d degrees C exceeds"
2969 " maximum allowed. Hardware has been shut down.\n",
2970 temp_val);
2971 rv = 1;
2972 } else if (temp_state == QLCNIC_TEMP_WARN) {
2973 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2974 dev_err(&netdev->dev,
2975 "Device temperature %d degrees C "
2976 "exceeds operating range."
2977 " Immediate action needed.\n",
2978 temp_val);
2979 }
2980 } else {
2981 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2982 dev_info(&netdev->dev,
2983 "Device temperature is now %d degrees C"
2984 " in normal range.\n", temp_val);
2985 }
2986 }
2987 adapter->ahw->temp = temp_state;
2988 return rv;
2989 }
2990
dump_tx_ring_desc(struct qlcnic_host_tx_ring * tx_ring)2991 static inline void dump_tx_ring_desc(struct qlcnic_host_tx_ring *tx_ring)
2992 {
2993 int i;
2994 struct cmd_desc_type0 *tx_desc_info;
2995
2996 for (i = 0; i < tx_ring->num_desc; i++) {
2997 tx_desc_info = &tx_ring->desc_head[i];
2998 pr_info("TX Desc: %d\n", i);
2999 print_hex_dump(KERN_INFO, "TX: ", DUMP_PREFIX_OFFSET, 16, 1,
3000 &tx_ring->desc_head[i],
3001 sizeof(struct cmd_desc_type0), true);
3002 }
3003 }
3004
qlcnic_dump_rings(struct qlcnic_adapter * adapter)3005 static void qlcnic_dump_rings(struct qlcnic_adapter *adapter)
3006 {
3007 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
3008 struct net_device *netdev = adapter->netdev;
3009 struct qlcnic_host_rds_ring *rds_ring;
3010 struct qlcnic_host_sds_ring *sds_ring;
3011 struct qlcnic_host_tx_ring *tx_ring;
3012 int ring;
3013
3014 if (!netdev || !netif_running(netdev))
3015 return;
3016
3017 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
3018 rds_ring = &recv_ctx->rds_rings[ring];
3019 if (!rds_ring)
3020 continue;
3021 netdev_info(netdev,
3022 "rds_ring=%d crb_rcv_producer=%d producer=%u num_desc=%u\n",
3023 ring, readl(rds_ring->crb_rcv_producer),
3024 rds_ring->producer, rds_ring->num_desc);
3025 }
3026
3027 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3028 sds_ring = &(recv_ctx->sds_rings[ring]);
3029 if (!sds_ring)
3030 continue;
3031 netdev_info(netdev,
3032 "sds_ring=%d crb_sts_consumer=%d consumer=%u crb_intr_mask=%d num_desc=%u\n",
3033 ring, readl(sds_ring->crb_sts_consumer),
3034 sds_ring->consumer, readl(sds_ring->crb_intr_mask),
3035 sds_ring->num_desc);
3036 }
3037
3038 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3039 tx_ring = &adapter->tx_ring[ring];
3040 if (!tx_ring)
3041 continue;
3042 netdev_info(netdev, "Tx ring=%d Context Id=0x%x\n",
3043 ring, tx_ring->ctx_id);
3044 netdev_info(netdev,
3045 "xmit_finished=%llu, xmit_called=%llu, xmit_on=%llu, xmit_off=%llu\n",
3046 tx_ring->tx_stats.xmit_finished,
3047 tx_ring->tx_stats.xmit_called,
3048 tx_ring->tx_stats.xmit_on,
3049 tx_ring->tx_stats.xmit_off);
3050
3051 if (tx_ring->crb_intr_mask)
3052 netdev_info(netdev, "crb_intr_mask=%d\n",
3053 readl(tx_ring->crb_intr_mask));
3054
3055 netdev_info(netdev,
3056 "hw_producer=%d, sw_producer=%d sw_consumer=%d, hw_consumer=%d\n",
3057 readl(tx_ring->crb_cmd_producer),
3058 tx_ring->producer, tx_ring->sw_consumer,
3059 le32_to_cpu(*(tx_ring->hw_consumer)));
3060
3061 netdev_info(netdev, "Total desc=%d, Available desc=%d\n",
3062 tx_ring->num_desc, qlcnic_tx_avail(tx_ring));
3063
3064 if (netif_msg_tx_err(adapter->ahw))
3065 dump_tx_ring_desc(tx_ring);
3066 }
3067
3068 }
3069
qlcnic_tx_timeout(struct net_device * netdev)3070 static void qlcnic_tx_timeout(struct net_device *netdev)
3071 {
3072 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3073
3074 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3075 return;
3076
3077 qlcnic_dump_rings(adapter);
3078
3079 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS ||
3080 netif_msg_tx_err(adapter->ahw)) {
3081 netdev_err(netdev, "Tx timeout, reset the adapter.\n");
3082 if (qlcnic_82xx_check(adapter))
3083 adapter->need_fw_reset = 1;
3084 else if (qlcnic_83xx_check(adapter))
3085 qlcnic_83xx_idc_request_reset(adapter,
3086 QLCNIC_FORCE_FW_DUMP_KEY);
3087 } else {
3088 netdev_err(netdev, "Tx timeout, reset adapter context.\n");
3089 adapter->ahw->reset_context = 1;
3090 }
3091 }
3092
qlcnic_get_stats(struct net_device * netdev)3093 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
3094 {
3095 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3096 struct net_device_stats *stats = &netdev->stats;
3097
3098 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
3099 qlcnic_update_stats(adapter);
3100
3101 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
3102 stats->tx_packets = adapter->stats.xmitfinished;
3103 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
3104 stats->tx_bytes = adapter->stats.txbytes;
3105 stats->rx_dropped = adapter->stats.rxdropped;
3106 stats->tx_dropped = adapter->stats.txdropped;
3107
3108 return stats;
3109 }
3110
qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter * adapter)3111 static irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
3112 {
3113 u32 status;
3114
3115 status = readl(adapter->isr_int_vec);
3116
3117 if (!(status & adapter->ahw->int_vec_bit))
3118 return IRQ_NONE;
3119
3120 /* check interrupt state machine, to be sure */
3121 status = readl(adapter->crb_int_state_reg);
3122 if (!ISR_LEGACY_INT_TRIGGERED(status))
3123 return IRQ_NONE;
3124
3125 writel(0xffffffff, adapter->tgt_status_reg);
3126 /* read twice to ensure write is flushed */
3127 readl(adapter->isr_int_vec);
3128 readl(adapter->isr_int_vec);
3129
3130 return IRQ_HANDLED;
3131 }
3132
qlcnic_tmp_intr(int irq,void * data)3133 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
3134 {
3135 struct qlcnic_host_sds_ring *sds_ring = data;
3136 struct qlcnic_adapter *adapter = sds_ring->adapter;
3137
3138 if (adapter->flags & QLCNIC_MSIX_ENABLED)
3139 goto done;
3140 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
3141 writel(0xffffffff, adapter->tgt_status_reg);
3142 goto done;
3143 }
3144
3145 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3146 return IRQ_NONE;
3147
3148 done:
3149 adapter->ahw->diag_cnt++;
3150 qlcnic_enable_sds_intr(adapter, sds_ring);
3151 return IRQ_HANDLED;
3152 }
3153
qlcnic_intr(int irq,void * data)3154 static irqreturn_t qlcnic_intr(int irq, void *data)
3155 {
3156 struct qlcnic_host_sds_ring *sds_ring = data;
3157 struct qlcnic_adapter *adapter = sds_ring->adapter;
3158
3159 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
3160 return IRQ_NONE;
3161
3162 napi_schedule(&sds_ring->napi);
3163
3164 return IRQ_HANDLED;
3165 }
3166
qlcnic_msi_intr(int irq,void * data)3167 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
3168 {
3169 struct qlcnic_host_sds_ring *sds_ring = data;
3170 struct qlcnic_adapter *adapter = sds_ring->adapter;
3171
3172 /* clear interrupt */
3173 writel(0xffffffff, adapter->tgt_status_reg);
3174
3175 napi_schedule(&sds_ring->napi);
3176 return IRQ_HANDLED;
3177 }
3178
qlcnic_msix_intr(int irq,void * data)3179 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
3180 {
3181 struct qlcnic_host_sds_ring *sds_ring = data;
3182
3183 napi_schedule(&sds_ring->napi);
3184 return IRQ_HANDLED;
3185 }
3186
qlcnic_msix_tx_intr(int irq,void * data)3187 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
3188 {
3189 struct qlcnic_host_tx_ring *tx_ring = data;
3190
3191 napi_schedule(&tx_ring->napi);
3192 return IRQ_HANDLED;
3193 }
3194
3195 #ifdef CONFIG_NET_POLL_CONTROLLER
qlcnic_poll_controller(struct net_device * netdev)3196 static void qlcnic_poll_controller(struct net_device *netdev)
3197 {
3198 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3199 struct qlcnic_host_sds_ring *sds_ring;
3200 struct qlcnic_recv_context *recv_ctx;
3201 struct qlcnic_host_tx_ring *tx_ring;
3202 int ring;
3203
3204 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3205 return;
3206
3207 recv_ctx = adapter->recv_ctx;
3208
3209 for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
3210 sds_ring = &recv_ctx->sds_rings[ring];
3211 qlcnic_disable_sds_intr(adapter, sds_ring);
3212 napi_schedule(&sds_ring->napi);
3213 }
3214
3215 if (adapter->flags & QLCNIC_MSIX_ENABLED) {
3216 /* Only Multi-Tx queue capable devices need to
3217 * schedule NAPI for TX rings
3218 */
3219 if ((qlcnic_83xx_check(adapter) &&
3220 (adapter->flags & QLCNIC_TX_INTR_SHARED)) ||
3221 (qlcnic_82xx_check(adapter) &&
3222 !qlcnic_check_multi_tx(adapter)))
3223 return;
3224
3225 for (ring = 0; ring < adapter->drv_tx_rings; ring++) {
3226 tx_ring = &adapter->tx_ring[ring];
3227 qlcnic_disable_tx_intr(adapter, tx_ring);
3228 napi_schedule(&tx_ring->napi);
3229 }
3230 }
3231 }
3232 #endif
3233
3234 static void
qlcnic_idc_debug_info(struct qlcnic_adapter * adapter,u8 encoding)3235 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
3236 {
3237 u32 val;
3238
3239 val = adapter->portnum & 0xf;
3240 val |= encoding << 7;
3241 val |= (jiffies - adapter->dev_rst_time) << 8;
3242
3243 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
3244 adapter->dev_rst_time = jiffies;
3245 }
3246
3247 static int
qlcnic_set_drv_state(struct qlcnic_adapter * adapter,u8 state)3248 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
3249 {
3250 u32 val;
3251
3252 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
3253 state != QLCNIC_DEV_NEED_QUISCENT);
3254
3255 if (qlcnic_api_lock(adapter))
3256 return -EIO;
3257
3258 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3259
3260 if (state == QLCNIC_DEV_NEED_RESET)
3261 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3262 else if (state == QLCNIC_DEV_NEED_QUISCENT)
3263 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
3264
3265 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3266
3267 qlcnic_api_unlock(adapter);
3268
3269 return 0;
3270 }
3271
3272 static int
qlcnic_clr_drv_state(struct qlcnic_adapter * adapter)3273 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
3274 {
3275 u32 val;
3276
3277 if (qlcnic_api_lock(adapter))
3278 return -EBUSY;
3279
3280 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3281 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3282 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3283
3284 qlcnic_api_unlock(adapter);
3285
3286 return 0;
3287 }
3288
qlcnic_clr_all_drv_state(struct qlcnic_adapter * adapter,u8 failed)3289 void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
3290 {
3291 u32 val;
3292
3293 if (qlcnic_api_lock(adapter))
3294 goto err;
3295
3296 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3297 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
3298 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3299
3300 if (failed) {
3301 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3302 QLCNIC_DEV_FAILED);
3303 dev_info(&adapter->pdev->dev,
3304 "Device state set to Failed. Please Reboot\n");
3305 } else if (!(val & 0x11111111))
3306 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3307 QLCNIC_DEV_COLD);
3308
3309 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3310 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
3311 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3312
3313 qlcnic_api_unlock(adapter);
3314 err:
3315 adapter->fw_fail_cnt = 0;
3316 adapter->flags &= ~QLCNIC_FW_HANG;
3317 clear_bit(__QLCNIC_START_FW, &adapter->state);
3318 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3319 }
3320
3321 /* Grab api lock, before checking state */
3322 static int
qlcnic_check_drv_state(struct qlcnic_adapter * adapter)3323 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
3324 {
3325 int act, state, active_mask;
3326 struct qlcnic_hardware_context *ahw = adapter->ahw;
3327
3328 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3329 act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3330
3331 if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
3332 active_mask = (~(1 << (ahw->pci_func * 4)));
3333 act = act & active_mask;
3334 }
3335
3336 if (((state & 0x11111111) == (act & 0x11111111)) ||
3337 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
3338 return 0;
3339 else
3340 return 1;
3341 }
3342
qlcnic_check_idc_ver(struct qlcnic_adapter * adapter)3343 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
3344 {
3345 u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
3346
3347 if (val != QLCNIC_DRV_IDC_VER) {
3348 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
3349 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
3350 }
3351
3352 return 0;
3353 }
3354
3355 static int
qlcnic_can_start_firmware(struct qlcnic_adapter * adapter)3356 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
3357 {
3358 u32 val, prev_state;
3359 u8 dev_init_timeo = adapter->dev_init_timeo;
3360 u8 portnum = adapter->portnum;
3361 u8 ret;
3362
3363 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
3364 return 1;
3365
3366 if (qlcnic_api_lock(adapter))
3367 return -1;
3368
3369 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
3370 if (!(val & (1 << (portnum * 4)))) {
3371 QLC_DEV_SET_REF_CNT(val, portnum);
3372 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
3373 }
3374
3375 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3376 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
3377
3378 switch (prev_state) {
3379 case QLCNIC_DEV_COLD:
3380 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3381 QLCNIC_DEV_INITIALIZING);
3382 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
3383 QLCNIC_DRV_IDC_VER);
3384 qlcnic_idc_debug_info(adapter, 0);
3385 qlcnic_api_unlock(adapter);
3386 return 1;
3387
3388 case QLCNIC_DEV_READY:
3389 ret = qlcnic_check_idc_ver(adapter);
3390 qlcnic_api_unlock(adapter);
3391 return ret;
3392
3393 case QLCNIC_DEV_NEED_RESET:
3394 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3395 QLC_DEV_SET_RST_RDY(val, portnum);
3396 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3397 break;
3398
3399 case QLCNIC_DEV_NEED_QUISCENT:
3400 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3401 QLC_DEV_SET_QSCNT_RDY(val, portnum);
3402 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3403 break;
3404
3405 case QLCNIC_DEV_FAILED:
3406 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
3407 qlcnic_api_unlock(adapter);
3408 return -1;
3409
3410 case QLCNIC_DEV_INITIALIZING:
3411 case QLCNIC_DEV_QUISCENT:
3412 break;
3413 }
3414
3415 qlcnic_api_unlock(adapter);
3416
3417 do {
3418 msleep(1000);
3419 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3420
3421 if (prev_state == QLCNIC_DEV_QUISCENT)
3422 continue;
3423 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
3424
3425 if (!dev_init_timeo) {
3426 dev_err(&adapter->pdev->dev,
3427 "Waiting for device to initialize timeout\n");
3428 return -1;
3429 }
3430
3431 if (qlcnic_api_lock(adapter))
3432 return -1;
3433
3434 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
3435 QLC_DEV_CLR_RST_QSCNT(val, portnum);
3436 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
3437
3438 ret = qlcnic_check_idc_ver(adapter);
3439 qlcnic_api_unlock(adapter);
3440
3441 return ret;
3442 }
3443
3444 static void
qlcnic_fwinit_work(struct work_struct * work)3445 qlcnic_fwinit_work(struct work_struct *work)
3446 {
3447 struct qlcnic_adapter *adapter = container_of(work,
3448 struct qlcnic_adapter, fw_work.work);
3449 u32 dev_state = 0xf;
3450 u32 val;
3451
3452 if (qlcnic_api_lock(adapter))
3453 goto err_ret;
3454
3455 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3456 if (dev_state == QLCNIC_DEV_QUISCENT ||
3457 dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3458 qlcnic_api_unlock(adapter);
3459 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
3460 FW_POLL_DELAY * 2);
3461 return;
3462 }
3463
3464 if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
3465 qlcnic_api_unlock(adapter);
3466 goto wait_npar;
3467 }
3468
3469 if (dev_state == QLCNIC_DEV_INITIALIZING ||
3470 dev_state == QLCNIC_DEV_READY) {
3471 dev_info(&adapter->pdev->dev, "Detected state change from "
3472 "DEV_NEED_RESET, skipping ack check\n");
3473 goto skip_ack_check;
3474 }
3475
3476 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
3477 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
3478 adapter->reset_ack_timeo);
3479 goto skip_ack_check;
3480 }
3481
3482 if (!qlcnic_check_drv_state(adapter)) {
3483 skip_ack_check:
3484 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3485
3486 if (dev_state == QLCNIC_DEV_NEED_RESET) {
3487 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3488 QLCNIC_DEV_INITIALIZING);
3489 set_bit(__QLCNIC_START_FW, &adapter->state);
3490 QLCDB(adapter, DRV, "Restarting fw\n");
3491 qlcnic_idc_debug_info(adapter, 0);
3492 val = QLC_SHARED_REG_RD32(adapter,
3493 QLCNIC_CRB_DRV_STATE);
3494 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
3495 QLC_SHARED_REG_WR32(adapter,
3496 QLCNIC_CRB_DRV_STATE, val);
3497 }
3498
3499 qlcnic_api_unlock(adapter);
3500
3501 rtnl_lock();
3502 if (qlcnic_check_fw_dump_state(adapter) &&
3503 (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3504 QLCDB(adapter, DRV, "Take FW dump\n");
3505 qlcnic_dump_fw(adapter);
3506 adapter->flags |= QLCNIC_FW_HANG;
3507 }
3508 rtnl_unlock();
3509
3510 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
3511 if (!adapter->nic_ops->start_firmware(adapter)) {
3512 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3513 adapter->fw_wait_cnt = 0;
3514 return;
3515 }
3516 goto err_ret;
3517 }
3518
3519 qlcnic_api_unlock(adapter);
3520
3521 wait_npar:
3522 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3523 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
3524
3525 switch (dev_state) {
3526 case QLCNIC_DEV_READY:
3527 if (!qlcnic_start_firmware(adapter)) {
3528 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
3529 adapter->fw_wait_cnt = 0;
3530 return;
3531 }
3532 case QLCNIC_DEV_FAILED:
3533 break;
3534 default:
3535 qlcnic_schedule_work(adapter,
3536 qlcnic_fwinit_work, FW_POLL_DELAY);
3537 return;
3538 }
3539
3540 err_ret:
3541 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
3542 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
3543 netif_device_attach(adapter->netdev);
3544 qlcnic_clr_all_drv_state(adapter, 0);
3545 }
3546
3547 static void
qlcnic_detach_work(struct work_struct * work)3548 qlcnic_detach_work(struct work_struct *work)
3549 {
3550 struct qlcnic_adapter *adapter = container_of(work,
3551 struct qlcnic_adapter, fw_work.work);
3552 struct net_device *netdev = adapter->netdev;
3553 u32 status;
3554
3555 netif_device_detach(netdev);
3556
3557 /* Dont grab rtnl lock during Quiscent mode */
3558 if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
3559 if (netif_running(netdev))
3560 __qlcnic_down(adapter, netdev);
3561 } else
3562 qlcnic_down(adapter, netdev);
3563
3564 status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3565
3566 if (status & QLCNIC_RCODE_FATAL_ERROR) {
3567 dev_err(&adapter->pdev->dev,
3568 "Detaching the device: peg halt status1=0x%x\n",
3569 status);
3570
3571 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
3572 dev_err(&adapter->pdev->dev,
3573 "On board active cooling fan failed. "
3574 "Device has been halted.\n");
3575 dev_err(&adapter->pdev->dev,
3576 "Replace the adapter.\n");
3577 }
3578
3579 goto err_ret;
3580 }
3581
3582 if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
3583 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
3584 adapter->ahw->temp);
3585 goto err_ret;
3586 }
3587
3588 /* Dont ack if this instance is the reset owner */
3589 if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
3590 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
3591 dev_err(&adapter->pdev->dev,
3592 "Failed to set driver state,"
3593 "detaching the device.\n");
3594 goto err_ret;
3595 }
3596 }
3597
3598 adapter->fw_wait_cnt = 0;
3599
3600 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
3601
3602 return;
3603
3604 err_ret:
3605 netif_device_attach(netdev);
3606 qlcnic_clr_all_drv_state(adapter, 1);
3607 }
3608
3609 /*Transit NPAR state to NON Operational */
3610 static void
qlcnic_set_npar_non_operational(struct qlcnic_adapter * adapter)3611 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
3612 {
3613 u32 state;
3614
3615 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
3616 if (state == QLCNIC_DEV_NPAR_NON_OPER)
3617 return;
3618
3619 if (qlcnic_api_lock(adapter))
3620 return;
3621 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3622 QLCNIC_DEV_NPAR_NON_OPER);
3623 qlcnic_api_unlock(adapter);
3624 }
3625
qlcnic_82xx_dev_request_reset(struct qlcnic_adapter * adapter,u32 key)3626 static void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter,
3627 u32 key)
3628 {
3629 u32 state, xg_val = 0, gb_val = 0;
3630
3631 qlcnic_xg_set_xg0_mask(xg_val);
3632 qlcnic_xg_set_xg1_mask(xg_val);
3633 QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3634 qlcnic_gb_set_gb0_mask(gb_val);
3635 qlcnic_gb_set_gb1_mask(gb_val);
3636 qlcnic_gb_set_gb2_mask(gb_val);
3637 qlcnic_gb_set_gb3_mask(gb_val);
3638 QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3639 dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3640 " on all ports\n");
3641 adapter->need_fw_reset = 1;
3642
3643 if (qlcnic_api_lock(adapter))
3644 return;
3645
3646 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3647
3648 if (test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3649 netdev_err(adapter->netdev, "%s: Device is in non-operational state\n",
3650 __func__);
3651 qlcnic_api_unlock(adapter);
3652
3653 return;
3654 }
3655
3656 if (state == QLCNIC_DEV_READY) {
3657 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3658 QLCNIC_DEV_NEED_RESET);
3659 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3660 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3661 qlcnic_idc_debug_info(adapter, 0);
3662 }
3663
3664 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3665 QLCNIC_DEV_NPAR_NON_OPER);
3666 qlcnic_api_unlock(adapter);
3667 }
3668
3669 /* Transit to NPAR READY state from NPAR NOT READY state */
3670 static void
qlcnic_dev_set_npar_ready(struct qlcnic_adapter * adapter)3671 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3672 {
3673 if (qlcnic_api_lock(adapter))
3674 return;
3675
3676 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3677 QLCNIC_DEV_NPAR_OPER);
3678 QLCDB(adapter, DRV, "NPAR operational state set\n");
3679
3680 qlcnic_api_unlock(adapter);
3681 }
3682
qlcnic_schedule_work(struct qlcnic_adapter * adapter,work_func_t func,int delay)3683 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3684 work_func_t func, int delay)
3685 {
3686 if (test_bit(__QLCNIC_AER, &adapter->state))
3687 return;
3688
3689 INIT_DELAYED_WORK(&adapter->fw_work, func);
3690 queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3691 round_jiffies_relative(delay));
3692 }
3693
3694 static void
qlcnic_attach_work(struct work_struct * work)3695 qlcnic_attach_work(struct work_struct *work)
3696 {
3697 struct qlcnic_adapter *adapter = container_of(work,
3698 struct qlcnic_adapter, fw_work.work);
3699 struct net_device *netdev = adapter->netdev;
3700 u32 npar_state;
3701
3702 if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3703 npar_state = QLC_SHARED_REG_RD32(adapter,
3704 QLCNIC_CRB_DEV_NPAR_STATE);
3705 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3706 qlcnic_clr_all_drv_state(adapter, 0);
3707 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3708 qlcnic_schedule_work(adapter, qlcnic_attach_work,
3709 FW_POLL_DELAY);
3710 else
3711 goto attach;
3712 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3713 return;
3714 }
3715 attach:
3716 qlcnic_dcb_get_info(adapter->dcb);
3717
3718 if (netif_running(netdev)) {
3719 if (qlcnic_up(adapter, netdev))
3720 goto done;
3721
3722 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3723 }
3724
3725 done:
3726 netif_device_attach(netdev);
3727 adapter->fw_fail_cnt = 0;
3728 adapter->flags &= ~QLCNIC_FW_HANG;
3729 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3730 if (adapter->portnum == 0)
3731 qlcnic_set_drv_version(adapter);
3732
3733 if (!qlcnic_clr_drv_state(adapter))
3734 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3735 FW_POLL_DELAY);
3736 }
3737
3738 static int
qlcnic_check_health(struct qlcnic_adapter * adapter)3739 qlcnic_check_health(struct qlcnic_adapter *adapter)
3740 {
3741 struct qlcnic_hardware_context *ahw = adapter->ahw;
3742 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
3743 u32 state = 0, heartbeat;
3744 u32 peg_status;
3745 int err = 0;
3746
3747 if (qlcnic_check_temp(adapter))
3748 goto detach;
3749
3750 if (adapter->need_fw_reset)
3751 qlcnic_dev_request_reset(adapter, 0);
3752
3753 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3754 if (state == QLCNIC_DEV_NEED_RESET) {
3755 qlcnic_set_npar_non_operational(adapter);
3756 adapter->need_fw_reset = 1;
3757 } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3758 goto detach;
3759
3760 heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3761 if (heartbeat != adapter->heartbeat) {
3762 adapter->heartbeat = heartbeat;
3763 adapter->fw_fail_cnt = 0;
3764 if (adapter->need_fw_reset)
3765 goto detach;
3766
3767 if (ahw->reset_context && qlcnic_auto_fw_reset)
3768 qlcnic_reset_hw_context(adapter);
3769
3770 return 0;
3771 }
3772
3773 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3774 return 0;
3775
3776 adapter->flags |= QLCNIC_FW_HANG;
3777
3778 qlcnic_dev_request_reset(adapter, 0);
3779
3780 if (qlcnic_auto_fw_reset)
3781 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3782
3783 dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3784 peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3785 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3786 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3787 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3788 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3789 "PEG_NET_4_PC: 0x%x\n",
3790 peg_status,
3791 QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3792 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c, &err),
3793 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c, &err),
3794 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c, &err),
3795 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c, &err),
3796 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c, &err));
3797 if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3798 dev_err(&adapter->pdev->dev,
3799 "Firmware aborted with error code 0x00006700. "
3800 "Device is being reset.\n");
3801 detach:
3802 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3803 QLCNIC_DEV_NEED_RESET;
3804
3805 if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3806 &adapter->state)) {
3807
3808 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3809 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3810 } else if (!qlcnic_auto_fw_reset && fw_dump->enable &&
3811 adapter->flags & QLCNIC_FW_RESET_OWNER) {
3812 qlcnic_dump_fw(adapter);
3813 }
3814
3815 return 1;
3816 }
3817
qlcnic_fw_poll_work(struct work_struct * work)3818 void qlcnic_fw_poll_work(struct work_struct *work)
3819 {
3820 struct qlcnic_adapter *adapter = container_of(work,
3821 struct qlcnic_adapter, fw_work.work);
3822
3823 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3824 goto reschedule;
3825
3826
3827 if (qlcnic_check_health(adapter))
3828 return;
3829
3830 if (adapter->fhash.fnum)
3831 qlcnic_prune_lb_filters(adapter);
3832
3833 reschedule:
3834 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3835 }
3836
qlcnic_is_first_func(struct pci_dev * pdev)3837 static int qlcnic_is_first_func(struct pci_dev *pdev)
3838 {
3839 struct pci_dev *oth_pdev;
3840 int val = pdev->devfn;
3841
3842 while (val-- > 0) {
3843 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3844 (pdev->bus), pdev->bus->number,
3845 PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3846 if (!oth_pdev)
3847 continue;
3848
3849 if (oth_pdev->current_state != PCI_D3cold) {
3850 pci_dev_put(oth_pdev);
3851 return 0;
3852 }
3853 pci_dev_put(oth_pdev);
3854 }
3855 return 1;
3856 }
3857
qlcnic_attach_func(struct pci_dev * pdev)3858 static int qlcnic_attach_func(struct pci_dev *pdev)
3859 {
3860 int err, first_func;
3861 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3862 struct net_device *netdev = adapter->netdev;
3863
3864 pdev->error_state = pci_channel_io_normal;
3865
3866 err = pci_enable_device(pdev);
3867 if (err)
3868 return err;
3869
3870 pci_set_master(pdev);
3871 pci_restore_state(pdev);
3872
3873 first_func = qlcnic_is_first_func(pdev);
3874
3875 if (qlcnic_api_lock(adapter))
3876 return -EINVAL;
3877
3878 if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3879 adapter->need_fw_reset = 1;
3880 set_bit(__QLCNIC_START_FW, &adapter->state);
3881 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3882 QLCNIC_DEV_INITIALIZING);
3883 QLCDB(adapter, DRV, "Restarting fw\n");
3884 }
3885 qlcnic_api_unlock(adapter);
3886
3887 err = qlcnic_start_firmware(adapter);
3888 if (err)
3889 return err;
3890
3891 qlcnic_clr_drv_state(adapter);
3892 kfree(adapter->msix_entries);
3893 adapter->msix_entries = NULL;
3894 err = qlcnic_setup_intr(adapter);
3895
3896 if (err) {
3897 kfree(adapter->msix_entries);
3898 netdev_err(netdev, "failed to setup interrupt\n");
3899 return err;
3900 }
3901
3902 if (netif_running(netdev)) {
3903 err = qlcnic_attach(adapter);
3904 if (err) {
3905 qlcnic_clr_all_drv_state(adapter, 1);
3906 clear_bit(__QLCNIC_AER, &adapter->state);
3907 netif_device_attach(netdev);
3908 return err;
3909 }
3910
3911 err = qlcnic_up(adapter, netdev);
3912 if (err)
3913 goto done;
3914
3915 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3916 }
3917 done:
3918 netif_device_attach(netdev);
3919 return err;
3920 }
3921
qlcnic_82xx_io_error_detected(struct pci_dev * pdev,pci_channel_state_t state)3922 static pci_ers_result_t qlcnic_82xx_io_error_detected(struct pci_dev *pdev,
3923 pci_channel_state_t state)
3924 {
3925 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3926 struct net_device *netdev = adapter->netdev;
3927
3928 if (state == pci_channel_io_perm_failure)
3929 return PCI_ERS_RESULT_DISCONNECT;
3930
3931 if (state == pci_channel_io_normal)
3932 return PCI_ERS_RESULT_RECOVERED;
3933
3934 set_bit(__QLCNIC_AER, &adapter->state);
3935 netif_device_detach(netdev);
3936
3937 cancel_delayed_work_sync(&adapter->fw_work);
3938
3939 if (netif_running(netdev))
3940 qlcnic_down(adapter, netdev);
3941
3942 qlcnic_detach(adapter);
3943 qlcnic_teardown_intr(adapter);
3944
3945 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3946
3947 pci_save_state(pdev);
3948 pci_disable_device(pdev);
3949
3950 return PCI_ERS_RESULT_NEED_RESET;
3951 }
3952
qlcnic_82xx_io_slot_reset(struct pci_dev * pdev)3953 static pci_ers_result_t qlcnic_82xx_io_slot_reset(struct pci_dev *pdev)
3954 {
3955 return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3956 PCI_ERS_RESULT_RECOVERED;
3957 }
3958
qlcnic_82xx_io_resume(struct pci_dev * pdev)3959 static void qlcnic_82xx_io_resume(struct pci_dev *pdev)
3960 {
3961 u32 state;
3962 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3963
3964 pci_cleanup_aer_uncorrect_error_status(pdev);
3965 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3966 if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3967 &adapter->state))
3968 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3969 FW_POLL_DELAY);
3970 }
3971
qlcnic_io_error_detected(struct pci_dev * pdev,pci_channel_state_t state)3972 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3973 pci_channel_state_t state)
3974 {
3975 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3976 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3977
3978 if (hw_ops->io_error_detected) {
3979 return hw_ops->io_error_detected(pdev, state);
3980 } else {
3981 dev_err(&pdev->dev, "AER error_detected handler not registered.\n");
3982 return PCI_ERS_RESULT_DISCONNECT;
3983 }
3984 }
3985
qlcnic_io_slot_reset(struct pci_dev * pdev)3986 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3987 {
3988 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3989 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
3990
3991 if (hw_ops->io_slot_reset) {
3992 return hw_ops->io_slot_reset(pdev);
3993 } else {
3994 dev_err(&pdev->dev, "AER slot_reset handler not registered.\n");
3995 return PCI_ERS_RESULT_DISCONNECT;
3996 }
3997 }
3998
qlcnic_io_resume(struct pci_dev * pdev)3999 static void qlcnic_io_resume(struct pci_dev *pdev)
4000 {
4001 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
4002 struct qlcnic_hardware_ops *hw_ops = adapter->ahw->hw_ops;
4003
4004 if (hw_ops->io_resume)
4005 hw_ops->io_resume(pdev);
4006 else
4007 dev_err(&pdev->dev, "AER resume handler not registered.\n");
4008 }
4009
4010
4011 static int
qlcnicvf_start_firmware(struct qlcnic_adapter * adapter)4012 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
4013 {
4014 int err;
4015
4016 err = qlcnic_can_start_firmware(adapter);
4017 if (err)
4018 return err;
4019
4020 err = qlcnic_check_npar_opertional(adapter);
4021 if (err)
4022 return err;
4023
4024 err = qlcnic_initialize_nic(adapter);
4025 if (err)
4026 return err;
4027
4028 qlcnic_check_options(adapter);
4029
4030 err = qlcnic_set_eswitch_port_config(adapter);
4031 if (err)
4032 return err;
4033
4034 adapter->need_fw_reset = 0;
4035
4036 return err;
4037 }
4038
qlcnic_validate_rings(struct qlcnic_adapter * adapter,__u32 ring_cnt,int queue_type)4039 int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt,
4040 int queue_type)
4041 {
4042 struct net_device *netdev = adapter->netdev;
4043 u8 max_hw_rings = 0;
4044 char buf[8];
4045 int cur_rings;
4046
4047 if (queue_type == QLCNIC_RX_QUEUE) {
4048 max_hw_rings = adapter->max_sds_rings;
4049 cur_rings = adapter->drv_sds_rings;
4050 strcpy(buf, "SDS");
4051 } else if (queue_type == QLCNIC_TX_QUEUE) {
4052 max_hw_rings = adapter->max_tx_rings;
4053 cur_rings = adapter->drv_tx_rings;
4054 strcpy(buf, "Tx");
4055 }
4056
4057 if (!is_power_of_2(ring_cnt)) {
4058 netdev_err(netdev, "%s rings value should be a power of 2\n",
4059 buf);
4060 return -EINVAL;
4061 }
4062
4063 if (qlcnic_82xx_check(adapter) && (queue_type == QLCNIC_TX_QUEUE) &&
4064 !qlcnic_check_multi_tx(adapter)) {
4065 netdev_err(netdev, "No Multi Tx queue support\n");
4066 return -EINVAL;
4067 }
4068
4069 if (ring_cnt > num_online_cpus()) {
4070 netdev_err(netdev,
4071 "%s value[%u] should not be higher than, number of online CPUs\n",
4072 buf, num_online_cpus());
4073 return -EINVAL;
4074 }
4075
4076 return 0;
4077 }
4078
qlcnic_setup_rings(struct qlcnic_adapter * adapter)4079 int qlcnic_setup_rings(struct qlcnic_adapter *adapter)
4080 {
4081 struct net_device *netdev = adapter->netdev;
4082 u8 tx_rings, rx_rings;
4083 int err;
4084
4085 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
4086 return -EBUSY;
4087
4088 tx_rings = adapter->drv_tss_rings;
4089 rx_rings = adapter->drv_rss_rings;
4090
4091 netif_device_detach(netdev);
4092
4093 err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings);
4094 if (err)
4095 goto done;
4096
4097 if (netif_running(netdev))
4098 __qlcnic_down(adapter, netdev);
4099
4100 qlcnic_detach(adapter);
4101
4102 if (qlcnic_83xx_check(adapter)) {
4103 qlcnic_83xx_free_mbx_intr(adapter);
4104 qlcnic_83xx_enable_mbx_poll(adapter);
4105 }
4106
4107 qlcnic_teardown_intr(adapter);
4108
4109 err = qlcnic_setup_intr(adapter);
4110 if (err) {
4111 kfree(adapter->msix_entries);
4112 netdev_err(netdev, "failed to setup interrupt\n");
4113 return err;
4114 }
4115
4116 /* Check if we need to update real_num_{tx|rx}_queues because
4117 * qlcnic_setup_intr() may change Tx/Rx rings size
4118 */
4119 if ((tx_rings != adapter->drv_tx_rings) ||
4120 (rx_rings != adapter->drv_sds_rings)) {
4121 err = qlcnic_set_real_num_queues(adapter,
4122 adapter->drv_tx_rings,
4123 adapter->drv_sds_rings);
4124 if (err)
4125 goto done;
4126 }
4127
4128 if (qlcnic_83xx_check(adapter)) {
4129 qlcnic_83xx_initialize_nic(adapter, 1);
4130 err = qlcnic_83xx_setup_mbx_intr(adapter);
4131 qlcnic_83xx_disable_mbx_poll(adapter);
4132 if (err) {
4133 dev_err(&adapter->pdev->dev,
4134 "failed to setup mbx interrupt\n");
4135 goto done;
4136 }
4137 }
4138
4139 if (netif_running(netdev)) {
4140 err = qlcnic_attach(adapter);
4141 if (err)
4142 goto done;
4143 err = __qlcnic_up(adapter, netdev);
4144 if (err)
4145 goto done;
4146 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
4147 }
4148 done:
4149 netif_device_attach(netdev);
4150 clear_bit(__QLCNIC_RESETTING, &adapter->state);
4151 return err;
4152 }
4153
4154 #ifdef CONFIG_INET
4155
4156 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
4157
4158 static void
qlcnic_config_indev_addr(struct qlcnic_adapter * adapter,struct net_device * dev,unsigned long event)4159 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
4160 struct net_device *dev, unsigned long event)
4161 {
4162 struct in_device *indev;
4163
4164 indev = in_dev_get(dev);
4165 if (!indev)
4166 return;
4167
4168 for_ifa(indev) {
4169 switch (event) {
4170 case NETDEV_UP:
4171 qlcnic_config_ipaddr(adapter,
4172 ifa->ifa_address, QLCNIC_IP_UP);
4173 break;
4174 case NETDEV_DOWN:
4175 qlcnic_config_ipaddr(adapter,
4176 ifa->ifa_address, QLCNIC_IP_DOWN);
4177 break;
4178 default:
4179 break;
4180 }
4181 } endfor_ifa(indev);
4182
4183 in_dev_put(indev);
4184 }
4185
qlcnic_restore_indev_addr(struct net_device * netdev,unsigned long event)4186 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
4187 {
4188 struct qlcnic_adapter *adapter = netdev_priv(netdev);
4189 struct net_device *dev;
4190 u16 vid;
4191
4192 qlcnic_config_indev_addr(adapter, netdev, event);
4193
4194 rcu_read_lock();
4195 for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
4196 dev = __vlan_find_dev_deep_rcu(netdev, htons(ETH_P_8021Q), vid);
4197 if (!dev)
4198 continue;
4199 qlcnic_config_indev_addr(adapter, dev, event);
4200 }
4201 rcu_read_unlock();
4202 }
4203
qlcnic_netdev_event(struct notifier_block * this,unsigned long event,void * ptr)4204 static int qlcnic_netdev_event(struct notifier_block *this,
4205 unsigned long event, void *ptr)
4206 {
4207 struct qlcnic_adapter *adapter;
4208 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
4209
4210 recheck:
4211 if (dev == NULL)
4212 goto done;
4213
4214 if (dev->priv_flags & IFF_802_1Q_VLAN) {
4215 dev = vlan_dev_real_dev(dev);
4216 goto recheck;
4217 }
4218
4219 if (!is_qlcnic_netdev(dev))
4220 goto done;
4221
4222 adapter = netdev_priv(dev);
4223
4224 if (!adapter)
4225 goto done;
4226
4227 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4228 goto done;
4229
4230 qlcnic_config_indev_addr(adapter, dev, event);
4231 done:
4232 return NOTIFY_DONE;
4233 }
4234
4235 static int
qlcnic_inetaddr_event(struct notifier_block * this,unsigned long event,void * ptr)4236 qlcnic_inetaddr_event(struct notifier_block *this,
4237 unsigned long event, void *ptr)
4238 {
4239 struct qlcnic_adapter *adapter;
4240 struct net_device *dev;
4241
4242 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
4243
4244 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
4245
4246 recheck:
4247 if (dev == NULL)
4248 goto done;
4249
4250 if (dev->priv_flags & IFF_802_1Q_VLAN) {
4251 dev = vlan_dev_real_dev(dev);
4252 goto recheck;
4253 }
4254
4255 if (!is_qlcnic_netdev(dev))
4256 goto done;
4257
4258 adapter = netdev_priv(dev);
4259
4260 if (!adapter)
4261 goto done;
4262
4263 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
4264 goto done;
4265
4266 switch (event) {
4267 case NETDEV_UP:
4268 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
4269
4270 break;
4271 case NETDEV_DOWN:
4272 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
4273
4274 break;
4275 default:
4276 break;
4277 }
4278
4279 done:
4280 return NOTIFY_DONE;
4281 }
4282
4283 static struct notifier_block qlcnic_netdev_cb = {
4284 .notifier_call = qlcnic_netdev_event,
4285 };
4286
4287 static struct notifier_block qlcnic_inetaddr_cb = {
4288 .notifier_call = qlcnic_inetaddr_event,
4289 };
4290 #else
qlcnic_restore_indev_addr(struct net_device * dev,unsigned long event)4291 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
4292 { }
4293 #endif
4294 static const struct pci_error_handlers qlcnic_err_handler = {
4295 .error_detected = qlcnic_io_error_detected,
4296 .slot_reset = qlcnic_io_slot_reset,
4297 .resume = qlcnic_io_resume,
4298 };
4299
4300 static struct pci_driver qlcnic_driver = {
4301 .name = qlcnic_driver_name,
4302 .id_table = qlcnic_pci_tbl,
4303 .probe = qlcnic_probe,
4304 .remove = qlcnic_remove,
4305 #ifdef CONFIG_PM
4306 .suspend = qlcnic_suspend,
4307 .resume = qlcnic_resume,
4308 #endif
4309 .shutdown = qlcnic_shutdown,
4310 .err_handler = &qlcnic_err_handler,
4311 #ifdef CONFIG_QLCNIC_SRIOV
4312 .sriov_configure = qlcnic_pci_sriov_configure,
4313 #endif
4314
4315 };
4316
qlcnic_init_module(void)4317 static int __init qlcnic_init_module(void)
4318 {
4319 int ret;
4320
4321 printk(KERN_INFO "%s\n", qlcnic_driver_string);
4322
4323 #ifdef CONFIG_INET
4324 register_netdevice_notifier(&qlcnic_netdev_cb);
4325 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
4326 #endif
4327
4328 ret = pci_register_driver(&qlcnic_driver);
4329 if (ret) {
4330 #ifdef CONFIG_INET
4331 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4332 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4333 #endif
4334 }
4335
4336 return ret;
4337 }
4338
4339 module_init(qlcnic_init_module);
4340
qlcnic_exit_module(void)4341 static void __exit qlcnic_exit_module(void)
4342 {
4343 pci_unregister_driver(&qlcnic_driver);
4344
4345 #ifdef CONFIG_INET
4346 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
4347 unregister_netdevice_notifier(&qlcnic_netdev_cb);
4348 #endif
4349 }
4350
4351 module_exit(qlcnic_exit_module);
4352