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
11 #include "qlcnic.h"
12 #include "qlcnic_sriov.h"
13 #include "qlcnic_hw.h"
14
15 #include <linux/swab.h>
16 #include <linux/dma-mapping.h>
17 #include <linux/if_vlan.h>
18 #include <net/ip.h>
19 #include <linux/ipv6.h>
20 #include <linux/inetdevice.h>
21 #include <linux/aer.h>
22 #include <linux/log2.h>
23 #include <linux/pci.h>
24
25 MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
26 MODULE_LICENSE("GPL");
27 MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
28 MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
29
30 char qlcnic_driver_name[] = "qlcnic";
31 static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
32 "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
33
34 static int qlcnic_mac_learn;
35 module_param(qlcnic_mac_learn, int, 0444);
36 MODULE_PARM_DESC(qlcnic_mac_learn,
37 "Mac Filter (0=learning is disabled, 1=Driver learning is enabled, 2=FDB learning is enabled)");
38
39 int qlcnic_use_msi = 1;
40 MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled)");
41 module_param_named(use_msi, qlcnic_use_msi, int, 0444);
42
43 int qlcnic_use_msi_x = 1;
44 MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled)");
45 module_param_named(use_msi_x, qlcnic_use_msi_x, int, 0444);
46
47 int qlcnic_auto_fw_reset = 1;
48 MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled)");
49 module_param_named(auto_fw_reset, qlcnic_auto_fw_reset, int, 0644);
50
51 int qlcnic_load_fw_file;
52 MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file)");
53 module_param_named(load_fw_file, qlcnic_load_fw_file, int, 0444);
54
55 int qlcnic_config_npars;
56 module_param(qlcnic_config_npars, int, 0444);
57 MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled)");
58
59 static int qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
60 static void qlcnic_remove(struct pci_dev *pdev);
61 static int qlcnic_open(struct net_device *netdev);
62 static int qlcnic_close(struct net_device *netdev);
63 static void qlcnic_tx_timeout(struct net_device *netdev);
64 static void qlcnic_attach_work(struct work_struct *work);
65 static void qlcnic_fwinit_work(struct work_struct *work);
66 static void qlcnic_fw_poll_work(struct work_struct *work);
67 #ifdef CONFIG_NET_POLL_CONTROLLER
68 static void qlcnic_poll_controller(struct net_device *netdev);
69 #endif
70
71 static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
72 static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8);
73 static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
74
75 static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
76 static irqreturn_t qlcnic_intr(int irq, void *data);
77 static irqreturn_t qlcnic_msi_intr(int irq, void *data);
78 static irqreturn_t qlcnic_msix_intr(int irq, void *data);
79 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data);
80
81 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
82 static int qlcnic_start_firmware(struct qlcnic_adapter *);
83
84 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter);
85 static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
86 static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
87 static int qlcnic_vlan_rx_add(struct net_device *, __be16, u16);
88 static int qlcnic_vlan_rx_del(struct net_device *, __be16, u16);
89
qlcnic_vlan_tx_check(struct qlcnic_adapter * adapter)90 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
91 {
92 struct qlcnic_hardware_context *ahw = adapter->ahw;
93
94 if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
95 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
96 else
97 return 1;
98 }
99
100 /* PCI Device ID Table */
101 #define ENTRY(device) \
102 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
103 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
104
105 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
106 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
107 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
108 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
109 {0,}
110 };
111
112 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
113
114
qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring * tx_ring)115 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
116 {
117 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
118 }
119
120 static const u32 msi_tgt_status[8] = {
121 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
122 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
123 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
124 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
125 };
126
127 static const u32 qlcnic_reg_tbl[] = {
128 0x1B20A8, /* PEG_HALT_STAT1 */
129 0x1B20AC, /* PEG_HALT_STAT2 */
130 0x1B20B0, /* FW_HEARTBEAT */
131 0x1B2100, /* LOCK ID */
132 0x1B2128, /* FW_CAPABILITIES */
133 0x1B2138, /* drv active */
134 0x1B2140, /* dev state */
135 0x1B2144, /* drv state */
136 0x1B2148, /* drv scratch */
137 0x1B214C, /* dev partition info */
138 0x1B2174, /* drv idc ver */
139 0x1B2150, /* fw version major */
140 0x1B2154, /* fw version minor */
141 0x1B2158, /* fw version sub */
142 0x1B219C, /* npar state */
143 0x1B21FC, /* FW_IMG_VALID */
144 0x1B2250, /* CMD_PEG_STATE */
145 0x1B233C, /* RCV_PEG_STATE */
146 0x1B23B4, /* ASIC TEMP */
147 0x1B216C, /* FW api */
148 0x1B2170, /* drv op mode */
149 0x13C010, /* flash lock */
150 0x13C014, /* flash unlock */
151 };
152
153 static const struct qlcnic_board_info qlcnic_boards[] = {
154 { PCI_VENDOR_ID_QLOGIC,
155 PCI_DEVICE_ID_QLOGIC_QLE834X,
156 PCI_VENDOR_ID_QLOGIC,
157 0x24e,
158 "8300 Series Dual Port 10GbE Converged Network Adapter "
159 "(TCP/IP Networking)" },
160 { PCI_VENDOR_ID_QLOGIC,
161 PCI_DEVICE_ID_QLOGIC_QLE834X,
162 PCI_VENDOR_ID_QLOGIC,
163 0x243,
164 "8300 Series Single Port 10GbE Converged Network Adapter "
165 "(TCP/IP Networking)" },
166 { PCI_VENDOR_ID_QLOGIC,
167 PCI_DEVICE_ID_QLOGIC_QLE834X,
168 PCI_VENDOR_ID_QLOGIC,
169 0x24a,
170 "8300 Series Dual Port 10GbE Converged Network Adapter "
171 "(TCP/IP Networking)" },
172 { PCI_VENDOR_ID_QLOGIC,
173 PCI_DEVICE_ID_QLOGIC_QLE834X,
174 PCI_VENDOR_ID_QLOGIC,
175 0x246,
176 "8300 Series Dual Port 10GbE Converged Network Adapter "
177 "(TCP/IP Networking)" },
178 { PCI_VENDOR_ID_QLOGIC,
179 PCI_DEVICE_ID_QLOGIC_QLE834X,
180 PCI_VENDOR_ID_QLOGIC,
181 0x252,
182 "8300 Series Dual Port 10GbE Converged Network Adapter "
183 "(TCP/IP Networking)" },
184 { PCI_VENDOR_ID_QLOGIC,
185 PCI_DEVICE_ID_QLOGIC_QLE834X,
186 PCI_VENDOR_ID_QLOGIC,
187 0x26e,
188 "8300 Series Dual Port 10GbE Converged Network Adapter "
189 "(TCP/IP Networking)" },
190 { PCI_VENDOR_ID_QLOGIC,
191 PCI_DEVICE_ID_QLOGIC_QLE834X,
192 PCI_VENDOR_ID_QLOGIC,
193 0x260,
194 "8300 Series Dual Port 10GbE Converged Network Adapter "
195 "(TCP/IP Networking)" },
196 { PCI_VENDOR_ID_QLOGIC,
197 PCI_DEVICE_ID_QLOGIC_QLE834X,
198 PCI_VENDOR_ID_QLOGIC,
199 0x266,
200 "8300 Series Single Port 10GbE Converged Network Adapter "
201 "(TCP/IP Networking)" },
202 { PCI_VENDOR_ID_QLOGIC,
203 PCI_DEVICE_ID_QLOGIC_QLE834X,
204 PCI_VENDOR_ID_QLOGIC,
205 0x269,
206 "8300 Series Dual Port 10GbE Converged Network Adapter "
207 "(TCP/IP Networking)" },
208 { PCI_VENDOR_ID_QLOGIC,
209 PCI_DEVICE_ID_QLOGIC_QLE834X,
210 PCI_VENDOR_ID_QLOGIC,
211 0x271,
212 "8300 Series Dual Port 10GbE Converged Network Adapter "
213 "(TCP/IP Networking)" },
214 { PCI_VENDOR_ID_QLOGIC,
215 PCI_DEVICE_ID_QLOGIC_QLE834X,
216 0x0, 0x0, "8300 Series 1/10GbE Controller" },
217 { PCI_VENDOR_ID_QLOGIC,
218 PCI_DEVICE_ID_QLOGIC_QLE824X,
219 PCI_VENDOR_ID_QLOGIC,
220 0x203,
221 "8200 Series Single Port 10GbE Converged Network Adapter"
222 "(TCP/IP Networking)" },
223 { PCI_VENDOR_ID_QLOGIC,
224 PCI_DEVICE_ID_QLOGIC_QLE824X,
225 PCI_VENDOR_ID_QLOGIC,
226 0x207,
227 "8200 Series Dual Port 10GbE Converged Network Adapter"
228 "(TCP/IP Networking)" },
229 { PCI_VENDOR_ID_QLOGIC,
230 PCI_DEVICE_ID_QLOGIC_QLE824X,
231 PCI_VENDOR_ID_QLOGIC,
232 0x20b,
233 "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter" },
234 { PCI_VENDOR_ID_QLOGIC,
235 PCI_DEVICE_ID_QLOGIC_QLE824X,
236 PCI_VENDOR_ID_QLOGIC,
237 0x20c,
238 "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter" },
239 { PCI_VENDOR_ID_QLOGIC,
240 PCI_DEVICE_ID_QLOGIC_QLE824X,
241 PCI_VENDOR_ID_QLOGIC,
242 0x20f,
243 "3200 Series Single Port 10Gb Intelligent Ethernet Adapter" },
244 { PCI_VENDOR_ID_QLOGIC,
245 PCI_DEVICE_ID_QLOGIC_QLE824X,
246 0x103c, 0x3733,
247 "NC523SFP 10Gb 2-port Server Adapter" },
248 { PCI_VENDOR_ID_QLOGIC,
249 PCI_DEVICE_ID_QLOGIC_QLE824X,
250 0x103c, 0x3346,
251 "CN1000Q Dual Port Converged Network Adapter" },
252 { PCI_VENDOR_ID_QLOGIC,
253 PCI_DEVICE_ID_QLOGIC_QLE824X,
254 PCI_VENDOR_ID_QLOGIC,
255 0x210,
256 "QME8242-k 10GbE Dual Port Mezzanine Card" },
257 { PCI_VENDOR_ID_QLOGIC,
258 PCI_DEVICE_ID_QLOGIC_QLE824X,
259 0x0, 0x0, "cLOM8214 1/10GbE Controller" },
260 };
261
262 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
263 #define QLC_MAX_SDS_RINGS 8
264
265 static const
266 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
267
qlcnic_alloc_sds_rings(struct qlcnic_recv_context * recv_ctx,int count)268 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
269 {
270 int size = sizeof(struct qlcnic_host_sds_ring) * count;
271
272 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
273
274 return recv_ctx->sds_rings == NULL;
275 }
276
qlcnic_free_sds_rings(struct qlcnic_recv_context * recv_ctx)277 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
278 {
279 if (recv_ctx->sds_rings != NULL)
280 kfree(recv_ctx->sds_rings);
281
282 recv_ctx->sds_rings = NULL;
283 }
284
qlcnic_read_mac_addr(struct qlcnic_adapter * adapter)285 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
286 {
287 u8 mac_addr[ETH_ALEN];
288 struct net_device *netdev = adapter->netdev;
289 struct pci_dev *pdev = adapter->pdev;
290
291 if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
292 return -EIO;
293
294 memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
295 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
296
297 /* set station address */
298
299 if (!is_valid_ether_addr(netdev->dev_addr))
300 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
301 netdev->dev_addr);
302
303 return 0;
304 }
305
qlcnic_delete_adapter_mac(struct qlcnic_adapter * adapter)306 static void qlcnic_delete_adapter_mac(struct qlcnic_adapter *adapter)
307 {
308 struct qlcnic_mac_list_s *cur;
309 struct list_head *head;
310
311 list_for_each(head, &adapter->mac_list) {
312 cur = list_entry(head, struct qlcnic_mac_list_s, list);
313 if (!memcmp(adapter->mac_addr, cur->mac_addr, ETH_ALEN)) {
314 qlcnic_sre_macaddr_change(adapter, cur->mac_addr,
315 0, QLCNIC_MAC_DEL);
316 list_del(&cur->list);
317 kfree(cur);
318 return;
319 }
320 }
321 }
322
qlcnic_set_mac(struct net_device * netdev,void * p)323 static int qlcnic_set_mac(struct net_device *netdev, void *p)
324 {
325 struct qlcnic_adapter *adapter = netdev_priv(netdev);
326 struct sockaddr *addr = p;
327
328 if (qlcnic_sriov_vf_check(adapter))
329 return -EINVAL;
330
331 if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
332 return -EOPNOTSUPP;
333
334 if (!is_valid_ether_addr(addr->sa_data))
335 return -EINVAL;
336
337 if (!memcmp(adapter->mac_addr, addr->sa_data, ETH_ALEN))
338 return 0;
339
340 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
341 netif_device_detach(netdev);
342 qlcnic_napi_disable(adapter);
343 }
344
345 qlcnic_delete_adapter_mac(adapter);
346 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
347 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
348 qlcnic_set_multi(adapter->netdev);
349
350 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
351 netif_device_attach(netdev);
352 qlcnic_napi_enable(adapter);
353 }
354 return 0;
355 }
356
qlcnic_fdb_del(struct ndmsg * ndm,struct nlattr * tb[],struct net_device * netdev,const unsigned char * addr)357 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
358 struct net_device *netdev, const unsigned char *addr)
359 {
360 struct qlcnic_adapter *adapter = netdev_priv(netdev);
361 int err = -EOPNOTSUPP;
362
363 if (!adapter->fdb_mac_learn)
364 return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
365
366 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
367 if (is_unicast_ether_addr(addr))
368 err = qlcnic_nic_del_mac(adapter, addr);
369 else if (is_multicast_ether_addr(addr))
370 err = dev_mc_del(netdev, addr);
371 else
372 err = -EINVAL;
373 }
374 return err;
375 }
376
qlcnic_fdb_add(struct ndmsg * ndm,struct nlattr * tb[],struct net_device * netdev,const unsigned char * addr,u16 flags)377 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
378 struct net_device *netdev,
379 const unsigned char *addr, u16 flags)
380 {
381 struct qlcnic_adapter *adapter = netdev_priv(netdev);
382 int err = 0;
383
384 if (!adapter->fdb_mac_learn)
385 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
386
387 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
388 pr_info("%s: FDB e-switch is not enabled\n", __func__);
389 return -EOPNOTSUPP;
390 }
391
392 if (ether_addr_equal(addr, adapter->mac_addr))
393 return err;
394
395 if (is_unicast_ether_addr(addr))
396 err = qlcnic_nic_add_mac(adapter, addr, 0);
397 else if (is_multicast_ether_addr(addr))
398 err = dev_mc_add_excl(netdev, addr);
399 else
400 err = -EINVAL;
401
402 return err;
403 }
404
qlcnic_fdb_dump(struct sk_buff * skb,struct netlink_callback * ncb,struct net_device * netdev,int idx)405 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
406 struct net_device *netdev, int idx)
407 {
408 struct qlcnic_adapter *adapter = netdev_priv(netdev);
409
410 if (!adapter->fdb_mac_learn)
411 return ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
412
413 if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
414 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
415
416 return idx;
417 }
418
qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter * adapter)419 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
420 {
421 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
422 usleep_range(10000, 11000);
423
424 cancel_delayed_work_sync(&adapter->fw_work);
425 }
426
427 static const struct net_device_ops qlcnic_netdev_ops = {
428 .ndo_open = qlcnic_open,
429 .ndo_stop = qlcnic_close,
430 .ndo_start_xmit = qlcnic_xmit_frame,
431 .ndo_get_stats = qlcnic_get_stats,
432 .ndo_validate_addr = eth_validate_addr,
433 .ndo_set_rx_mode = qlcnic_set_multi,
434 .ndo_set_mac_address = qlcnic_set_mac,
435 .ndo_change_mtu = qlcnic_change_mtu,
436 .ndo_fix_features = qlcnic_fix_features,
437 .ndo_set_features = qlcnic_set_features,
438 .ndo_tx_timeout = qlcnic_tx_timeout,
439 .ndo_vlan_rx_add_vid = qlcnic_vlan_rx_add,
440 .ndo_vlan_rx_kill_vid = qlcnic_vlan_rx_del,
441 .ndo_fdb_add = qlcnic_fdb_add,
442 .ndo_fdb_del = qlcnic_fdb_del,
443 .ndo_fdb_dump = qlcnic_fdb_dump,
444 #ifdef CONFIG_NET_POLL_CONTROLLER
445 .ndo_poll_controller = qlcnic_poll_controller,
446 #endif
447 #ifdef CONFIG_QLCNIC_SRIOV
448 .ndo_set_vf_mac = qlcnic_sriov_set_vf_mac,
449 .ndo_set_vf_tx_rate = qlcnic_sriov_set_vf_tx_rate,
450 .ndo_get_vf_config = qlcnic_sriov_get_vf_config,
451 .ndo_set_vf_vlan = qlcnic_sriov_set_vf_vlan,
452 #endif
453 };
454
455 static const struct net_device_ops qlcnic_netdev_failed_ops = {
456 .ndo_open = qlcnic_open,
457 };
458
459 static struct qlcnic_nic_template qlcnic_ops = {
460 .config_bridged_mode = qlcnic_config_bridged_mode,
461 .config_led = qlcnic_82xx_config_led,
462 .start_firmware = qlcnic_82xx_start_firmware,
463 .request_reset = qlcnic_82xx_dev_request_reset,
464 .cancel_idc_work = qlcnic_82xx_cancel_idc_work,
465 .napi_add = qlcnic_82xx_napi_add,
466 .napi_del = qlcnic_82xx_napi_del,
467 .config_ipaddr = qlcnic_82xx_config_ipaddr,
468 .clear_legacy_intr = qlcnic_82xx_clear_legacy_intr,
469 };
470
471 struct qlcnic_nic_template qlcnic_vf_ops = {
472 .config_bridged_mode = qlcnicvf_config_bridged_mode,
473 .config_led = qlcnicvf_config_led,
474 .start_firmware = qlcnicvf_start_firmware
475 };
476
477 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
478 .read_crb = qlcnic_82xx_read_crb,
479 .write_crb = qlcnic_82xx_write_crb,
480 .read_reg = qlcnic_82xx_hw_read_wx_2M,
481 .write_reg = qlcnic_82xx_hw_write_wx_2M,
482 .get_mac_address = qlcnic_82xx_get_mac_address,
483 .setup_intr = qlcnic_82xx_setup_intr,
484 .alloc_mbx_args = qlcnic_82xx_alloc_mbx_args,
485 .mbx_cmd = qlcnic_82xx_issue_cmd,
486 .get_func_no = qlcnic_82xx_get_func_no,
487 .api_lock = qlcnic_82xx_api_lock,
488 .api_unlock = qlcnic_82xx_api_unlock,
489 .add_sysfs = qlcnic_82xx_add_sysfs,
490 .remove_sysfs = qlcnic_82xx_remove_sysfs,
491 .process_lb_rcv_ring_diag = qlcnic_82xx_process_rcv_ring_diag,
492 .create_rx_ctx = qlcnic_82xx_fw_cmd_create_rx_ctx,
493 .create_tx_ctx = qlcnic_82xx_fw_cmd_create_tx_ctx,
494 .del_rx_ctx = qlcnic_82xx_fw_cmd_del_rx_ctx,
495 .del_tx_ctx = qlcnic_82xx_fw_cmd_del_tx_ctx,
496 .setup_link_event = qlcnic_82xx_linkevent_request,
497 .get_nic_info = qlcnic_82xx_get_nic_info,
498 .get_pci_info = qlcnic_82xx_get_pci_info,
499 .set_nic_info = qlcnic_82xx_set_nic_info,
500 .change_macvlan = qlcnic_82xx_sre_macaddr_change,
501 .napi_enable = qlcnic_82xx_napi_enable,
502 .napi_disable = qlcnic_82xx_napi_disable,
503 .config_intr_coal = qlcnic_82xx_config_intr_coalesce,
504 .config_rss = qlcnic_82xx_config_rss,
505 .config_hw_lro = qlcnic_82xx_config_hw_lro,
506 .config_loopback = qlcnic_82xx_set_lb_mode,
507 .clear_loopback = qlcnic_82xx_clear_lb_mode,
508 .config_promisc_mode = qlcnic_82xx_nic_set_promisc,
509 .change_l2_filter = qlcnic_82xx_change_filter,
510 .get_board_info = qlcnic_82xx_get_board_info,
511 .free_mac_list = qlcnic_82xx_free_mac_list,
512 };
513
qlcnic_enable_msix(struct qlcnic_adapter * adapter,u32 num_msix)514 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
515 {
516 struct pci_dev *pdev = adapter->pdev;
517 int err = -1, i;
518 int max_tx_rings, tx_vector;
519
520 if (adapter->flags & QLCNIC_TX_INTR_SHARED) {
521 max_tx_rings = 0;
522 tx_vector = 0;
523 } else {
524 max_tx_rings = adapter->max_drv_tx_rings;
525 tx_vector = 1;
526 }
527
528 if (!adapter->msix_entries) {
529 adapter->msix_entries = kcalloc(num_msix,
530 sizeof(struct msix_entry),
531 GFP_KERNEL);
532 if (!adapter->msix_entries)
533 return -ENOMEM;
534 }
535
536 adapter->max_sds_rings = 1;
537 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
538
539 if (adapter->ahw->msix_supported) {
540 enable_msix:
541 for (i = 0; i < num_msix; i++)
542 adapter->msix_entries[i].entry = i;
543 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
544 if (err == 0) {
545 adapter->flags |= QLCNIC_MSIX_ENABLED;
546 if (qlcnic_83xx_check(adapter)) {
547 adapter->ahw->num_msix = num_msix;
548 /* subtract mail box and tx ring vectors */
549 adapter->max_sds_rings = num_msix -
550 max_tx_rings - 1;
551 } else {
552 adapter->max_sds_rings = num_msix;
553 }
554 dev_info(&pdev->dev, "using msi-x interrupts\n");
555 return err;
556 } else if (err > 0) {
557 dev_info(&pdev->dev,
558 "Unable to allocate %d MSI-X interrupt vectors\n",
559 num_msix);
560 if (qlcnic_83xx_check(adapter)) {
561 if (err < (QLC_83XX_MINIMUM_VECTOR - tx_vector))
562 return err;
563 err -= (max_tx_rings + 1);
564 num_msix = rounddown_pow_of_two(err);
565 num_msix += (max_tx_rings + 1);
566 } else {
567 num_msix = rounddown_pow_of_two(err);
568 }
569
570 if (num_msix) {
571 dev_info(&pdev->dev,
572 "Trying to allocate %d MSI-X interrupt vectors\n",
573 num_msix);
574 goto enable_msix;
575 }
576 } else {
577 dev_info(&pdev->dev,
578 "Unable to allocate %d MSI-X interrupt vectors\n",
579 num_msix);
580 }
581 }
582
583 return err;
584 }
585
qlcnic_enable_msi_legacy(struct qlcnic_adapter * adapter)586 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
587 {
588 int err = 0;
589 u32 offset, mask_reg;
590 const struct qlcnic_legacy_intr_set *legacy_intrp;
591 struct qlcnic_hardware_context *ahw = adapter->ahw;
592 struct pci_dev *pdev = adapter->pdev;
593
594 if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
595 adapter->flags |= QLCNIC_MSI_ENABLED;
596 offset = msi_tgt_status[adapter->ahw->pci_func];
597 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
598 offset);
599 dev_info(&pdev->dev, "using msi interrupts\n");
600 adapter->msix_entries[0].vector = pdev->irq;
601 return err;
602 }
603 if (qlcnic_use_msi || qlcnic_use_msi_x)
604 return -EOPNOTSUPP;
605
606 legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
607 adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
608 offset = legacy_intrp->tgt_status_reg;
609 adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
610 mask_reg = legacy_intrp->tgt_mask_reg;
611 adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
612 adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
613 adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
614 dev_info(&pdev->dev, "using legacy interrupts\n");
615 adapter->msix_entries[0].vector = pdev->irq;
616 return err;
617 }
618
qlcnic_82xx_setup_intr(struct qlcnic_adapter * adapter,u8 num_intr)619 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr)
620 {
621 int num_msix, err = 0;
622
623 if (!num_intr)
624 num_intr = QLCNIC_DEF_NUM_STS_DESC_RINGS;
625
626 if (adapter->ahw->msix_supported)
627 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
628 num_intr));
629 else
630 num_msix = 1;
631
632 err = qlcnic_enable_msix(adapter, num_msix);
633 if (err == -ENOMEM || !err)
634 return err;
635
636 err = qlcnic_enable_msi_legacy(adapter);
637 if (!err)
638 return err;
639
640 return -EIO;
641 }
642
qlcnic_teardown_intr(struct qlcnic_adapter * adapter)643 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
644 {
645 if (adapter->flags & QLCNIC_MSIX_ENABLED)
646 pci_disable_msix(adapter->pdev);
647 if (adapter->flags & QLCNIC_MSI_ENABLED)
648 pci_disable_msi(adapter->pdev);
649
650 kfree(adapter->msix_entries);
651 adapter->msix_entries = NULL;
652
653 if (adapter->ahw->intr_tbl) {
654 vfree(adapter->ahw->intr_tbl);
655 adapter->ahw->intr_tbl = NULL;
656 }
657 }
658
qlcnic_cleanup_pci_map(struct qlcnic_hardware_context * ahw)659 static void qlcnic_cleanup_pci_map(struct qlcnic_hardware_context *ahw)
660 {
661 if (ahw->pci_base0 != NULL)
662 iounmap(ahw->pci_base0);
663 }
664
qlcnic_get_act_pci_func(struct qlcnic_adapter * adapter)665 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
666 {
667 struct qlcnic_pci_info *pci_info;
668 int ret;
669
670 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
671 switch (adapter->ahw->port_type) {
672 case QLCNIC_GBE:
673 adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_GBE_PORTS;
674 break;
675 case QLCNIC_XGBE:
676 adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_XG_PORTS;
677 break;
678 }
679 return 0;
680 }
681
682 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
683 return 0;
684
685 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
686 if (!pci_info)
687 return -ENOMEM;
688
689 ret = qlcnic_get_pci_info(adapter, pci_info);
690 kfree(pci_info);
691 return ret;
692 }
693
qlcnic_init_pci_info(struct qlcnic_adapter * adapter)694 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
695 {
696 struct qlcnic_pci_info *pci_info;
697 int i, ret = 0, j = 0;
698 u16 act_pci_func;
699 u8 pfn;
700
701 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
702 if (!pci_info)
703 return -ENOMEM;
704
705 ret = qlcnic_get_pci_info(adapter, pci_info);
706 if (ret)
707 goto err_pci_info;
708
709 act_pci_func = adapter->ahw->act_pci_func;
710
711 adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
712 act_pci_func, GFP_KERNEL);
713 if (!adapter->npars) {
714 ret = -ENOMEM;
715 goto err_pci_info;
716 }
717
718 adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
719 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
720 if (!adapter->eswitch) {
721 ret = -ENOMEM;
722 goto err_npars;
723 }
724
725 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
726 pfn = pci_info[i].id;
727
728 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
729 ret = QL_STATUS_INVALID_PARAM;
730 goto err_eswitch;
731 }
732
733 if (!pci_info[i].active ||
734 (pci_info[i].type != QLCNIC_TYPE_NIC))
735 continue;
736
737 adapter->npars[j].pci_func = pfn;
738 adapter->npars[j].active = (u8)pci_info[i].active;
739 adapter->npars[j].type = (u8)pci_info[i].type;
740 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
741 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
742 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
743 j++;
744 }
745
746 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++) {
747 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
748 if (qlcnic_83xx_check(adapter))
749 qlcnic_enable_eswitch(adapter, i, 1);
750 }
751
752 kfree(pci_info);
753 return 0;
754
755 err_eswitch:
756 kfree(adapter->eswitch);
757 adapter->eswitch = NULL;
758 err_npars:
759 kfree(adapter->npars);
760 adapter->npars = NULL;
761 err_pci_info:
762 kfree(pci_info);
763
764 return ret;
765 }
766
767 static int
qlcnic_set_function_modes(struct qlcnic_adapter * adapter)768 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
769 {
770 u8 id;
771 int i, ret = 1;
772 u32 data = QLCNIC_MGMT_FUNC;
773 struct qlcnic_hardware_context *ahw = adapter->ahw;
774
775 ret = qlcnic_api_lock(adapter);
776 if (ret)
777 goto err_lock;
778
779 if (qlcnic_config_npars) {
780 for (i = 0; i < ahw->act_pci_func; i++) {
781 id = adapter->npars[i].pci_func;
782 if (id == ahw->pci_func)
783 continue;
784 data |= (qlcnic_config_npars &
785 QLC_DEV_SET_DRV(0xf, id));
786 }
787 } else {
788 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
789 data = (data & ~QLC_DEV_SET_DRV(0xf, ahw->pci_func)) |
790 (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
791 ahw->pci_func));
792 }
793 QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
794 qlcnic_api_unlock(adapter);
795 err_lock:
796 return ret;
797 }
798
qlcnic_check_vf(struct qlcnic_adapter * adapter,const struct pci_device_id * ent)799 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
800 const struct pci_device_id *ent)
801 {
802 u32 op_mode, priv_level;
803
804 /* Determine FW API version */
805 adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
806 QLCNIC_FW_API);
807
808 /* Find PCI function number */
809 qlcnic_get_func_no(adapter);
810
811 /* Determine function privilege level */
812 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
813 if (op_mode == QLC_DEV_DRV_DEFAULT)
814 priv_level = QLCNIC_MGMT_FUNC;
815 else
816 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
817
818 if (priv_level == QLCNIC_NON_PRIV_FUNC) {
819 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
820 dev_info(&adapter->pdev->dev,
821 "HAL Version: %d Non Privileged function\n",
822 adapter->ahw->fw_hal_version);
823 adapter->nic_ops = &qlcnic_vf_ops;
824 } else
825 adapter->nic_ops = &qlcnic_ops;
826 }
827
828 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
829 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
qlcnic_get_bar_length(u32 dev_id,ulong * bar)830 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
831 {
832 switch (dev_id) {
833 case PCI_DEVICE_ID_QLOGIC_QLE824X:
834 *bar = QLCNIC_82XX_BAR0_LENGTH;
835 break;
836 case PCI_DEVICE_ID_QLOGIC_QLE834X:
837 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
838 *bar = QLCNIC_83XX_BAR0_LENGTH;
839 break;
840 default:
841 *bar = 0;
842 }
843 }
844
qlcnic_setup_pci_map(struct pci_dev * pdev,struct qlcnic_hardware_context * ahw)845 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
846 struct qlcnic_hardware_context *ahw)
847 {
848 u32 offset;
849 void __iomem *mem_ptr0 = NULL;
850 unsigned long mem_len, pci_len0 = 0, bar0_len;
851
852 /* remap phys address */
853 mem_len = pci_resource_len(pdev, 0);
854
855 qlcnic_get_bar_length(pdev->device, &bar0_len);
856 if (mem_len >= bar0_len) {
857
858 mem_ptr0 = pci_ioremap_bar(pdev, 0);
859 if (mem_ptr0 == NULL) {
860 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
861 return -EIO;
862 }
863 pci_len0 = mem_len;
864 } else {
865 return -EIO;
866 }
867
868 dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
869
870 ahw->pci_base0 = mem_ptr0;
871 ahw->pci_len0 = pci_len0;
872 offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
873 qlcnic_get_ioaddr(ahw, offset);
874
875 return 0;
876 }
877
qlcnic_get_board_name(struct qlcnic_adapter * adapter,char * name)878 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
879 {
880 struct pci_dev *pdev = adapter->pdev;
881 int i, found = 0;
882
883 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
884 if (qlcnic_boards[i].vendor == pdev->vendor &&
885 qlcnic_boards[i].device == pdev->device &&
886 qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
887 qlcnic_boards[i].sub_device == pdev->subsystem_device) {
888 sprintf(name, "%pM: %s" ,
889 adapter->mac_addr,
890 qlcnic_boards[i].short_name);
891 found = 1;
892 break;
893 }
894
895 }
896
897 if (!found)
898 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
899 }
900
901 static void
qlcnic_check_options(struct qlcnic_adapter * adapter)902 qlcnic_check_options(struct qlcnic_adapter *adapter)
903 {
904 int err;
905 u32 fw_major, fw_minor, fw_build, prev_fw_version;
906 struct pci_dev *pdev = adapter->pdev;
907 struct qlcnic_hardware_context *ahw = adapter->ahw;
908 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
909
910 prev_fw_version = adapter->fw_version;
911
912 fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
913 fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
914 fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
915
916 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
917
918 err = qlcnic_get_board_info(adapter);
919 if (err) {
920 dev_err(&pdev->dev, "Error getting board config info.\n");
921 return;
922 }
923 if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
924 if (fw_dump->tmpl_hdr == NULL ||
925 adapter->fw_version > prev_fw_version) {
926 if (fw_dump->tmpl_hdr)
927 vfree(fw_dump->tmpl_hdr);
928 if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
929 dev_info(&pdev->dev,
930 "Supports FW dump capability\n");
931 }
932 }
933
934 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
935 QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
936
937 if (adapter->ahw->port_type == QLCNIC_XGBE) {
938 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
939 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
940 adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
941 } else {
942 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
943 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
944 }
945
946 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
947 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
948
949 } else if (adapter->ahw->port_type == QLCNIC_GBE) {
950 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
951 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
952 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
953 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
954 }
955
956 adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
957
958 adapter->num_txd = MAX_CMD_DESCRIPTORS;
959
960 adapter->max_rds_rings = MAX_RDS_RINGS;
961 }
962
963 static int
qlcnic_initialize_nic(struct qlcnic_adapter * adapter)964 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
965 {
966 int err;
967 struct qlcnic_info nic_info;
968
969 memset(&nic_info, 0, sizeof(struct qlcnic_info));
970 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
971 if (err)
972 return err;
973
974 adapter->ahw->physical_port = (u8)nic_info.phys_port;
975 adapter->ahw->switch_mode = nic_info.switch_mode;
976 adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
977 adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
978 adapter->ahw->capabilities = nic_info.capabilities;
979
980 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
981 u32 temp;
982 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
983 adapter->ahw->capabilities2 = temp;
984 }
985 adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
986 adapter->ahw->max_mtu = nic_info.max_mtu;
987
988 /* Disable NPAR for 83XX */
989 if (qlcnic_83xx_check(adapter))
990 return err;
991
992 if (adapter->ahw->capabilities & BIT_6)
993 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
994 else
995 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
996
997 return err;
998 }
999
qlcnic_set_vlan_config(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1000 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
1001 struct qlcnic_esw_func_cfg *esw_cfg)
1002 {
1003 if (esw_cfg->discard_tagged)
1004 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
1005 else
1006 adapter->flags |= QLCNIC_TAGGING_ENABLED;
1007
1008 if (esw_cfg->vlan_id) {
1009 adapter->rx_pvid = esw_cfg->vlan_id;
1010 adapter->tx_pvid = esw_cfg->vlan_id;
1011 } else {
1012 adapter->rx_pvid = 0;
1013 adapter->tx_pvid = 0;
1014 }
1015 }
1016
1017 static int
qlcnic_vlan_rx_add(struct net_device * netdev,__be16 proto,u16 vid)1018 qlcnic_vlan_rx_add(struct net_device *netdev, __be16 proto, u16 vid)
1019 {
1020 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1021 int err;
1022
1023 if (qlcnic_sriov_vf_check(adapter)) {
1024 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 1);
1025 if (err) {
1026 netdev_err(netdev,
1027 "Cannot add VLAN filter for VLAN id %d, err=%d",
1028 vid, err);
1029 return err;
1030 }
1031 }
1032
1033 set_bit(vid, adapter->vlans);
1034 return 0;
1035 }
1036
1037 static int
qlcnic_vlan_rx_del(struct net_device * netdev,__be16 proto,u16 vid)1038 qlcnic_vlan_rx_del(struct net_device *netdev, __be16 proto, u16 vid)
1039 {
1040 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1041 int err;
1042
1043 if (qlcnic_sriov_vf_check(adapter)) {
1044 err = qlcnic_sriov_cfg_vf_guest_vlan(adapter, vid, 0);
1045 if (err) {
1046 netdev_err(netdev,
1047 "Cannot delete VLAN filter for VLAN id %d, err=%d",
1048 vid, err);
1049 return err;
1050 }
1051 }
1052
1053 qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
1054 clear_bit(vid, adapter->vlans);
1055 return 0;
1056 }
1057
qlcnic_set_eswitch_port_features(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1058 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
1059 struct qlcnic_esw_func_cfg *esw_cfg)
1060 {
1061 adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
1062 QLCNIC_PROMISC_DISABLED);
1063
1064 if (esw_cfg->mac_anti_spoof)
1065 adapter->flags |= QLCNIC_MACSPOOF;
1066
1067 if (!esw_cfg->mac_override)
1068 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
1069
1070 if (!esw_cfg->promisc_mode)
1071 adapter->flags |= QLCNIC_PROMISC_DISABLED;
1072 }
1073
qlcnic_set_eswitch_port_config(struct qlcnic_adapter * adapter)1074 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
1075 {
1076 struct qlcnic_esw_func_cfg esw_cfg;
1077
1078 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
1079 return 0;
1080
1081 esw_cfg.pci_func = adapter->ahw->pci_func;
1082 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
1083 return -EIO;
1084 qlcnic_set_vlan_config(adapter, &esw_cfg);
1085 qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
1086 qlcnic_set_netdev_features(adapter, &esw_cfg);
1087
1088 return 0;
1089 }
1090
qlcnic_set_netdev_features(struct qlcnic_adapter * adapter,struct qlcnic_esw_func_cfg * esw_cfg)1091 void qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
1092 struct qlcnic_esw_func_cfg *esw_cfg)
1093 {
1094 struct net_device *netdev = adapter->netdev;
1095
1096 if (qlcnic_83xx_check(adapter))
1097 return;
1098
1099 adapter->offload_flags = esw_cfg->offload_flags;
1100 adapter->flags |= QLCNIC_APP_CHANGED_FLAGS;
1101 netdev_update_features(netdev);
1102 adapter->flags &= ~QLCNIC_APP_CHANGED_FLAGS;
1103 }
1104
1105 static int
qlcnic_check_eswitch_mode(struct qlcnic_adapter * adapter)1106 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1107 {
1108 u32 op_mode, priv_level;
1109 int err = 0;
1110
1111 err = qlcnic_initialize_nic(adapter);
1112 if (err)
1113 return err;
1114
1115 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1116 return 0;
1117
1118 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1119 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1120
1121 if (op_mode == QLC_DEV_DRV_DEFAULT)
1122 priv_level = QLCNIC_MGMT_FUNC;
1123 else
1124 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1125
1126 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1127 if (priv_level == QLCNIC_MGMT_FUNC) {
1128 adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1129 err = qlcnic_init_pci_info(adapter);
1130 if (err)
1131 return err;
1132 /* Set privilege level for other functions */
1133 qlcnic_set_function_modes(adapter);
1134 dev_info(&adapter->pdev->dev,
1135 "HAL Version: %d, Management function\n",
1136 adapter->ahw->fw_hal_version);
1137 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1138 adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1139 dev_info(&adapter->pdev->dev,
1140 "HAL Version: %d, Privileged function\n",
1141 adapter->ahw->fw_hal_version);
1142 }
1143 }
1144
1145 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1146
1147 return err;
1148 }
1149
qlcnic_set_default_offload_settings(struct qlcnic_adapter * adapter)1150 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1151 {
1152 struct qlcnic_esw_func_cfg esw_cfg;
1153 struct qlcnic_npar_info *npar;
1154 u8 i;
1155
1156 if (adapter->need_fw_reset)
1157 return 0;
1158
1159 for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1160 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1161 esw_cfg.pci_func = adapter->npars[i].pci_func;
1162 esw_cfg.mac_override = BIT_0;
1163 esw_cfg.promisc_mode = BIT_0;
1164 if (qlcnic_82xx_check(adapter)) {
1165 esw_cfg.offload_flags = BIT_0;
1166 if (QLCNIC_IS_TSO_CAPABLE(adapter))
1167 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1168 }
1169 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1170 return -EIO;
1171 npar = &adapter->npars[i];
1172 npar->pvid = esw_cfg.vlan_id;
1173 npar->mac_override = esw_cfg.mac_override;
1174 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1175 npar->discard_tagged = esw_cfg.discard_tagged;
1176 npar->promisc_mode = esw_cfg.promisc_mode;
1177 npar->offload_flags = esw_cfg.offload_flags;
1178 }
1179
1180 return 0;
1181 }
1182
1183
1184 static int
qlcnic_reset_eswitch_config(struct qlcnic_adapter * adapter,struct qlcnic_npar_info * npar,int pci_func)1185 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1186 struct qlcnic_npar_info *npar, int pci_func)
1187 {
1188 struct qlcnic_esw_func_cfg esw_cfg;
1189 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1190 esw_cfg.pci_func = pci_func;
1191 esw_cfg.vlan_id = npar->pvid;
1192 esw_cfg.mac_override = npar->mac_override;
1193 esw_cfg.discard_tagged = npar->discard_tagged;
1194 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1195 esw_cfg.offload_flags = npar->offload_flags;
1196 esw_cfg.promisc_mode = npar->promisc_mode;
1197 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1198 return -EIO;
1199
1200 esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1201 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1202 return -EIO;
1203
1204 return 0;
1205 }
1206
qlcnic_reset_npar_config(struct qlcnic_adapter * adapter)1207 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1208 {
1209 int i, err;
1210 struct qlcnic_npar_info *npar;
1211 struct qlcnic_info nic_info;
1212 u8 pci_func;
1213
1214 if (qlcnic_82xx_check(adapter))
1215 if (!adapter->need_fw_reset)
1216 return 0;
1217
1218 /* Set the NPAR config data after FW reset */
1219 for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1220 npar = &adapter->npars[i];
1221 pci_func = npar->pci_func;
1222 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1223 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1224 if (err)
1225 return err;
1226 nic_info.min_tx_bw = npar->min_bw;
1227 nic_info.max_tx_bw = npar->max_bw;
1228 err = qlcnic_set_nic_info(adapter, &nic_info);
1229 if (err)
1230 return err;
1231
1232 if (npar->enable_pm) {
1233 err = qlcnic_config_port_mirroring(adapter,
1234 npar->dest_npar, 1,
1235 pci_func);
1236 if (err)
1237 return err;
1238 }
1239 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1240 if (err)
1241 return err;
1242 }
1243 return 0;
1244 }
1245
qlcnic_check_npar_opertional(struct qlcnic_adapter * adapter)1246 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1247 {
1248 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1249 u32 npar_state;
1250
1251 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1252 return 0;
1253
1254 npar_state = QLC_SHARED_REG_RD32(adapter,
1255 QLCNIC_CRB_DEV_NPAR_STATE);
1256 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1257 msleep(1000);
1258 npar_state = QLC_SHARED_REG_RD32(adapter,
1259 QLCNIC_CRB_DEV_NPAR_STATE);
1260 }
1261 if (!npar_opt_timeo) {
1262 dev_err(&adapter->pdev->dev,
1263 "Waiting for NPAR state to operational timeout\n");
1264 return -EIO;
1265 }
1266 return 0;
1267 }
1268
1269 static int
qlcnic_set_mgmt_operations(struct qlcnic_adapter * adapter)1270 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1271 {
1272 int err;
1273
1274 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1275 adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1276 return 0;
1277
1278 err = qlcnic_set_default_offload_settings(adapter);
1279 if (err)
1280 return err;
1281
1282 err = qlcnic_reset_npar_config(adapter);
1283 if (err)
1284 return err;
1285
1286 qlcnic_dev_set_npar_ready(adapter);
1287
1288 return err;
1289 }
1290
qlcnic_82xx_start_firmware(struct qlcnic_adapter * adapter)1291 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1292 {
1293 int err;
1294
1295 err = qlcnic_can_start_firmware(adapter);
1296 if (err < 0)
1297 return err;
1298 else if (!err)
1299 goto check_fw_status;
1300
1301 if (qlcnic_load_fw_file)
1302 qlcnic_request_firmware(adapter);
1303 else {
1304 err = qlcnic_check_flash_fw_ver(adapter);
1305 if (err)
1306 goto err_out;
1307
1308 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1309 }
1310
1311 err = qlcnic_need_fw_reset(adapter);
1312 if (err == 0)
1313 goto check_fw_status;
1314
1315 err = qlcnic_pinit_from_rom(adapter);
1316 if (err)
1317 goto err_out;
1318
1319 err = qlcnic_load_firmware(adapter);
1320 if (err)
1321 goto err_out;
1322
1323 qlcnic_release_firmware(adapter);
1324 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1325
1326 check_fw_status:
1327 err = qlcnic_check_fw_status(adapter);
1328 if (err)
1329 goto err_out;
1330
1331 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1332 qlcnic_idc_debug_info(adapter, 1);
1333 err = qlcnic_check_eswitch_mode(adapter);
1334 if (err) {
1335 dev_err(&adapter->pdev->dev,
1336 "Memory allocation failed for eswitch\n");
1337 goto err_out;
1338 }
1339 err = qlcnic_set_mgmt_operations(adapter);
1340 if (err)
1341 goto err_out;
1342
1343 qlcnic_check_options(adapter);
1344 adapter->need_fw_reset = 0;
1345
1346 qlcnic_release_firmware(adapter);
1347 return 0;
1348
1349 err_out:
1350 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1351 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1352
1353 qlcnic_release_firmware(adapter);
1354 return err;
1355 }
1356
1357 static int
qlcnic_request_irq(struct qlcnic_adapter * adapter)1358 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1359 {
1360 irq_handler_t handler;
1361 struct qlcnic_host_sds_ring *sds_ring;
1362 struct qlcnic_host_tx_ring *tx_ring;
1363 int err, ring, num_sds_rings;
1364
1365 unsigned long flags = 0;
1366 struct net_device *netdev = adapter->netdev;
1367 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1368
1369 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1370 if (qlcnic_82xx_check(adapter))
1371 handler = qlcnic_tmp_intr;
1372 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1373 flags |= IRQF_SHARED;
1374
1375 } else {
1376 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1377 handler = qlcnic_msix_intr;
1378 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1379 handler = qlcnic_msi_intr;
1380 else {
1381 flags |= IRQF_SHARED;
1382 if (qlcnic_82xx_check(adapter))
1383 handler = qlcnic_intr;
1384 else
1385 handler = qlcnic_83xx_intr;
1386 }
1387 }
1388 adapter->irq = netdev->irq;
1389
1390 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1391 if (qlcnic_82xx_check(adapter) ||
1392 (qlcnic_83xx_check(adapter) &&
1393 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1394 num_sds_rings = adapter->max_sds_rings;
1395 for (ring = 0; ring < num_sds_rings; ring++) {
1396 sds_ring = &recv_ctx->sds_rings[ring];
1397 if (qlcnic_82xx_check(adapter) &&
1398 (ring == (num_sds_rings - 1)))
1399 snprintf(sds_ring->name,
1400 sizeof(sds_ring->name),
1401 "qlcnic-%s[Tx0+Rx%d]",
1402 netdev->name, ring);
1403 else
1404 snprintf(sds_ring->name,
1405 sizeof(sds_ring->name),
1406 "qlcnic-%s[Rx%d]",
1407 netdev->name, ring);
1408 err = request_irq(sds_ring->irq, handler, flags,
1409 sds_ring->name, sds_ring);
1410 if (err)
1411 return err;
1412 }
1413 }
1414 if (qlcnic_83xx_check(adapter) &&
1415 (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1416 !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
1417 handler = qlcnic_msix_tx_intr;
1418 for (ring = 0; ring < adapter->max_drv_tx_rings;
1419 ring++) {
1420 tx_ring = &adapter->tx_ring[ring];
1421 snprintf(tx_ring->name, sizeof(tx_ring->name),
1422 "qlcnic-%s[Tx%d]", netdev->name, ring);
1423 err = request_irq(tx_ring->irq, handler, flags,
1424 tx_ring->name, tx_ring);
1425 if (err)
1426 return err;
1427 }
1428 }
1429 }
1430 return 0;
1431 }
1432
1433 static void
qlcnic_free_irq(struct qlcnic_adapter * adapter)1434 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1435 {
1436 int ring;
1437 struct qlcnic_host_sds_ring *sds_ring;
1438 struct qlcnic_host_tx_ring *tx_ring;
1439
1440 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1441
1442 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1443 if (qlcnic_82xx_check(adapter) ||
1444 (qlcnic_83xx_check(adapter) &&
1445 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1446 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1447 sds_ring = &recv_ctx->sds_rings[ring];
1448 free_irq(sds_ring->irq, sds_ring);
1449 }
1450 }
1451 if (qlcnic_83xx_check(adapter) &&
1452 !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
1453 for (ring = 0; ring < adapter->max_drv_tx_rings;
1454 ring++) {
1455 tx_ring = &adapter->tx_ring[ring];
1456 if (tx_ring->irq)
1457 free_irq(tx_ring->irq, tx_ring);
1458 }
1459 }
1460 }
1461 }
1462
qlcnic_get_lro_mss_capability(struct qlcnic_adapter * adapter)1463 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1464 {
1465 u32 capab = 0;
1466
1467 if (qlcnic_82xx_check(adapter)) {
1468 if (adapter->ahw->capabilities2 &
1469 QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1470 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1471 } else {
1472 capab = adapter->ahw->capabilities;
1473 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1474 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1475 }
1476 }
1477
__qlcnic_up(struct qlcnic_adapter * adapter,struct net_device * netdev)1478 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1479 {
1480 int ring;
1481 struct qlcnic_host_rds_ring *rds_ring;
1482
1483 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1484 return -EIO;
1485
1486 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1487 return 0;
1488 if (qlcnic_set_eswitch_port_config(adapter))
1489 return -EIO;
1490 qlcnic_get_lro_mss_capability(adapter);
1491
1492 if (qlcnic_fw_create_ctx(adapter))
1493 return -EIO;
1494
1495 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1496 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1497 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1498 }
1499
1500 qlcnic_set_multi(netdev);
1501 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1502
1503 adapter->ahw->linkup = 0;
1504
1505 if (adapter->max_sds_rings > 1)
1506 qlcnic_config_rss(adapter, 1);
1507
1508 qlcnic_config_intr_coalesce(adapter);
1509
1510 if (netdev->features & NETIF_F_LRO)
1511 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1512
1513 qlcnic_napi_enable(adapter);
1514
1515 qlcnic_linkevent_request(adapter, 1);
1516
1517 adapter->ahw->reset_context = 0;
1518 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1519 return 0;
1520 }
1521
qlcnic_up(struct qlcnic_adapter * adapter,struct net_device * netdev)1522 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1523 {
1524 int err = 0;
1525
1526 rtnl_lock();
1527 if (netif_running(netdev))
1528 err = __qlcnic_up(adapter, netdev);
1529 rtnl_unlock();
1530
1531 return err;
1532 }
1533
__qlcnic_down(struct qlcnic_adapter * adapter,struct net_device * netdev)1534 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1535 {
1536 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1537 return;
1538
1539 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1540 return;
1541
1542 if (qlcnic_sriov_vf_check(adapter))
1543 qlcnic_sriov_cleanup_async_list(&adapter->ahw->sriov->bc);
1544 smp_mb();
1545 spin_lock(&adapter->tx_clean_lock);
1546 netif_carrier_off(netdev);
1547 adapter->ahw->linkup = 0;
1548 netif_tx_disable(netdev);
1549
1550 qlcnic_free_mac_list(adapter);
1551
1552 if (adapter->fhash.fnum)
1553 qlcnic_delete_lb_filters(adapter);
1554
1555 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1556
1557 qlcnic_napi_disable(adapter);
1558
1559 qlcnic_fw_destroy_ctx(adapter);
1560 adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1561
1562 qlcnic_reset_rx_buffers_list(adapter);
1563 qlcnic_release_tx_buffers(adapter);
1564 spin_unlock(&adapter->tx_clean_lock);
1565 }
1566
1567 /* Usage: During suspend and firmware recovery module */
1568
qlcnic_down(struct qlcnic_adapter * adapter,struct net_device * netdev)1569 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1570 {
1571 rtnl_lock();
1572 if (netif_running(netdev))
1573 __qlcnic_down(adapter, netdev);
1574 rtnl_unlock();
1575
1576 }
1577
1578 int
qlcnic_attach(struct qlcnic_adapter * adapter)1579 qlcnic_attach(struct qlcnic_adapter *adapter)
1580 {
1581 struct net_device *netdev = adapter->netdev;
1582 struct pci_dev *pdev = adapter->pdev;
1583 int err;
1584
1585 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1586 return 0;
1587
1588 err = qlcnic_napi_add(adapter, netdev);
1589 if (err)
1590 return err;
1591
1592 err = qlcnic_alloc_sw_resources(adapter);
1593 if (err) {
1594 dev_err(&pdev->dev, "Error in setting sw resources\n");
1595 goto err_out_napi_del;
1596 }
1597
1598 err = qlcnic_alloc_hw_resources(adapter);
1599 if (err) {
1600 dev_err(&pdev->dev, "Error in setting hw resources\n");
1601 goto err_out_free_sw;
1602 }
1603
1604 err = qlcnic_request_irq(adapter);
1605 if (err) {
1606 dev_err(&pdev->dev, "failed to setup interrupt\n");
1607 goto err_out_free_hw;
1608 }
1609
1610 qlcnic_create_sysfs_entries(adapter);
1611
1612 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1613 return 0;
1614
1615 err_out_free_hw:
1616 qlcnic_free_hw_resources(adapter);
1617 err_out_free_sw:
1618 qlcnic_free_sw_resources(adapter);
1619 err_out_napi_del:
1620 qlcnic_napi_del(adapter);
1621 return err;
1622 }
1623
qlcnic_detach(struct qlcnic_adapter * adapter)1624 void qlcnic_detach(struct qlcnic_adapter *adapter)
1625 {
1626 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1627 return;
1628
1629 qlcnic_remove_sysfs_entries(adapter);
1630
1631 qlcnic_free_hw_resources(adapter);
1632 qlcnic_release_rx_buffers(adapter);
1633 qlcnic_free_irq(adapter);
1634 qlcnic_napi_del(adapter);
1635 qlcnic_free_sw_resources(adapter);
1636
1637 adapter->is_up = 0;
1638 }
1639
qlcnic_diag_free_res(struct net_device * netdev,int max_sds_rings)1640 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1641 {
1642 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1643 struct qlcnic_host_sds_ring *sds_ring;
1644 int ring;
1645
1646 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1647 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1648 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1649 sds_ring = &adapter->recv_ctx->sds_rings[ring];
1650 qlcnic_disable_int(sds_ring);
1651 }
1652 }
1653
1654 qlcnic_fw_destroy_ctx(adapter);
1655
1656 qlcnic_detach(adapter);
1657
1658 adapter->ahw->diag_test = 0;
1659 adapter->max_sds_rings = max_sds_rings;
1660
1661 if (qlcnic_attach(adapter))
1662 goto out;
1663
1664 if (netif_running(netdev))
1665 __qlcnic_up(adapter, netdev);
1666 out:
1667 netif_device_attach(netdev);
1668 }
1669
qlcnic_alloc_adapter_resources(struct qlcnic_adapter * adapter)1670 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1671 {
1672 struct qlcnic_hardware_context *ahw = adapter->ahw;
1673 int err = 0;
1674
1675 adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1676 GFP_KERNEL);
1677 if (!adapter->recv_ctx) {
1678 err = -ENOMEM;
1679 goto err_out;
1680 }
1681 /* Initialize interrupt coalesce parameters */
1682 ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1683 ahw->coal.type = QLCNIC_INTR_COAL_TYPE_RX;
1684 ahw->coal.rx_time_us = QLCNIC_DEF_INTR_COALESCE_RX_TIME_US;
1685 ahw->coal.rx_packets = QLCNIC_DEF_INTR_COALESCE_RX_PACKETS;
1686 if (qlcnic_83xx_check(adapter)) {
1687 ahw->coal.tx_time_us = QLCNIC_DEF_INTR_COALESCE_TX_TIME_US;
1688 ahw->coal.tx_packets = QLCNIC_DEF_INTR_COALESCE_TX_PACKETS;
1689 }
1690 /* clear stats */
1691 memset(&adapter->stats, 0, sizeof(adapter->stats));
1692 err_out:
1693 return err;
1694 }
1695
qlcnic_free_adapter_resources(struct qlcnic_adapter * adapter)1696 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1697 {
1698 kfree(adapter->recv_ctx);
1699 adapter->recv_ctx = NULL;
1700
1701 if (adapter->ahw->fw_dump.tmpl_hdr) {
1702 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1703 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1704 }
1705
1706 kfree(adapter->ahw->reset.buff);
1707 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1708 }
1709
qlcnic_diag_alloc_res(struct net_device * netdev,int test)1710 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1711 {
1712 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1713 struct qlcnic_host_sds_ring *sds_ring;
1714 struct qlcnic_host_rds_ring *rds_ring;
1715 int ring;
1716 int ret;
1717
1718 netif_device_detach(netdev);
1719
1720 if (netif_running(netdev))
1721 __qlcnic_down(adapter, netdev);
1722
1723 qlcnic_detach(adapter);
1724
1725 adapter->max_sds_rings = 1;
1726 adapter->ahw->diag_test = test;
1727 adapter->ahw->linkup = 0;
1728
1729 ret = qlcnic_attach(adapter);
1730 if (ret) {
1731 netif_device_attach(netdev);
1732 return ret;
1733 }
1734
1735 ret = qlcnic_fw_create_ctx(adapter);
1736 if (ret) {
1737 qlcnic_detach(adapter);
1738 netif_device_attach(netdev);
1739 return ret;
1740 }
1741
1742 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1743 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1744 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1745 }
1746
1747 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1748 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1749 sds_ring = &adapter->recv_ctx->sds_rings[ring];
1750 qlcnic_enable_int(sds_ring);
1751 }
1752 }
1753
1754 if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1755 adapter->ahw->loopback_state = 0;
1756 qlcnic_linkevent_request(adapter, 1);
1757 }
1758
1759 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1760
1761 return 0;
1762 }
1763
1764 /* Reset context in hardware only */
1765 static int
qlcnic_reset_hw_context(struct qlcnic_adapter * adapter)1766 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1767 {
1768 struct net_device *netdev = adapter->netdev;
1769
1770 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1771 return -EBUSY;
1772
1773 netif_device_detach(netdev);
1774
1775 qlcnic_down(adapter, netdev);
1776
1777 qlcnic_up(adapter, netdev);
1778
1779 netif_device_attach(netdev);
1780
1781 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1782 dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1783 return 0;
1784 }
1785
1786 int
qlcnic_reset_context(struct qlcnic_adapter * adapter)1787 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1788 {
1789 int err = 0;
1790 struct net_device *netdev = adapter->netdev;
1791
1792 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1793 return -EBUSY;
1794
1795 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1796
1797 netif_device_detach(netdev);
1798
1799 if (netif_running(netdev))
1800 __qlcnic_down(adapter, netdev);
1801
1802 qlcnic_detach(adapter);
1803
1804 if (netif_running(netdev)) {
1805 err = qlcnic_attach(adapter);
1806 if (!err) {
1807 __qlcnic_up(adapter, netdev);
1808 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1809 }
1810 }
1811
1812 netif_device_attach(netdev);
1813 }
1814
1815 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1816 return err;
1817 }
1818
1819 int
qlcnic_setup_netdev(struct qlcnic_adapter * adapter,struct net_device * netdev,int pci_using_dac)1820 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
1821 int pci_using_dac)
1822 {
1823 int err;
1824 struct pci_dev *pdev = adapter->pdev;
1825
1826 adapter->rx_csum = 1;
1827 adapter->ahw->mc_enabled = 0;
1828 adapter->ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
1829
1830 netdev->netdev_ops = &qlcnic_netdev_ops;
1831 netdev->watchdog_timeo = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
1832
1833 qlcnic_change_mtu(netdev, netdev->mtu);
1834
1835 if (qlcnic_sriov_vf_check(adapter))
1836 SET_ETHTOOL_OPS(netdev, &qlcnic_sriov_vf_ethtool_ops);
1837 else
1838 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1839
1840 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
1841 NETIF_F_IPV6_CSUM | NETIF_F_GRO |
1842 NETIF_F_HW_VLAN_CTAG_RX);
1843 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1844 NETIF_F_IPV6_CSUM);
1845
1846 if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1847 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1848 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1849 }
1850
1851 if (pci_using_dac) {
1852 netdev->features |= NETIF_F_HIGHDMA;
1853 netdev->vlan_features |= NETIF_F_HIGHDMA;
1854 }
1855
1856 if (qlcnic_vlan_tx_check(adapter))
1857 netdev->features |= (NETIF_F_HW_VLAN_CTAG_TX);
1858
1859 if (qlcnic_sriov_vf_check(adapter))
1860 netdev->features |= NETIF_F_HW_VLAN_CTAG_FILTER;
1861
1862 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1863 netdev->features |= NETIF_F_LRO;
1864
1865 netdev->hw_features = netdev->features;
1866 netdev->irq = adapter->msix_entries[0].vector;
1867
1868 err = register_netdev(netdev);
1869 if (err) {
1870 dev_err(&pdev->dev, "failed to register net device\n");
1871 return err;
1872 }
1873
1874 return 0;
1875 }
1876
qlcnic_set_dma_mask(struct pci_dev * pdev,int * pci_using_dac)1877 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
1878 {
1879 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1880 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1881 *pci_using_dac = 1;
1882 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1883 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1884 *pci_using_dac = 0;
1885 else {
1886 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1887 return -EIO;
1888 }
1889
1890 return 0;
1891 }
1892
qlcnic_free_tx_rings(struct qlcnic_adapter * adapter)1893 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
1894 {
1895 int ring;
1896 struct qlcnic_host_tx_ring *tx_ring;
1897
1898 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1899 tx_ring = &adapter->tx_ring[ring];
1900 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
1901 vfree(tx_ring->cmd_buf_arr);
1902 tx_ring->cmd_buf_arr = NULL;
1903 }
1904 }
1905 if (adapter->tx_ring != NULL)
1906 kfree(adapter->tx_ring);
1907 }
1908
qlcnic_alloc_tx_rings(struct qlcnic_adapter * adapter,struct net_device * netdev)1909 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
1910 struct net_device *netdev)
1911 {
1912 int ring, vector, index;
1913 struct qlcnic_host_tx_ring *tx_ring;
1914 struct qlcnic_cmd_buffer *cmd_buf_arr;
1915
1916 tx_ring = kcalloc(adapter->max_drv_tx_rings,
1917 sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
1918 if (tx_ring == NULL)
1919 return -ENOMEM;
1920
1921 adapter->tx_ring = tx_ring;
1922
1923 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1924 tx_ring = &adapter->tx_ring[ring];
1925 tx_ring->num_desc = adapter->num_txd;
1926 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
1927 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
1928 if (cmd_buf_arr == NULL) {
1929 qlcnic_free_tx_rings(adapter);
1930 return -ENOMEM;
1931 }
1932 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
1933 tx_ring->cmd_buf_arr = cmd_buf_arr;
1934 }
1935
1936 if (qlcnic_83xx_check(adapter)) {
1937 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1938 tx_ring = &adapter->tx_ring[ring];
1939 tx_ring->adapter = adapter;
1940 if (adapter->flags & QLCNIC_MSIX_ENABLED) {
1941 index = adapter->max_sds_rings + ring;
1942 vector = adapter->msix_entries[index].vector;
1943 tx_ring->irq = vector;
1944 }
1945 }
1946 }
1947 return 0;
1948 }
1949
1950 static int
qlcnic_probe(struct pci_dev * pdev,const struct pci_device_id * ent)1951 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1952 {
1953 struct net_device *netdev = NULL;
1954 struct qlcnic_adapter *adapter = NULL;
1955 struct qlcnic_hardware_context *ahw;
1956 int err, pci_using_dac = -1;
1957 u32 capab2;
1958 char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
1959
1960 if (pdev->is_virtfn)
1961 return -ENODEV;
1962
1963 err = pci_enable_device(pdev);
1964 if (err)
1965 return err;
1966
1967 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1968 err = -ENODEV;
1969 goto err_out_disable_pdev;
1970 }
1971
1972 err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1973 if (err)
1974 goto err_out_disable_pdev;
1975
1976 err = pci_request_regions(pdev, qlcnic_driver_name);
1977 if (err)
1978 goto err_out_disable_pdev;
1979
1980 pci_set_master(pdev);
1981 pci_enable_pcie_error_reporting(pdev);
1982
1983 ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
1984 if (!ahw) {
1985 err = -ENOMEM;
1986 goto err_out_free_res;
1987 }
1988
1989 switch (ent->device) {
1990 case PCI_DEVICE_ID_QLOGIC_QLE824X:
1991 ahw->hw_ops = &qlcnic_hw_ops;
1992 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
1993 break;
1994 case PCI_DEVICE_ID_QLOGIC_QLE834X:
1995 qlcnic_83xx_register_map(ahw);
1996 break;
1997 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1998 qlcnic_sriov_vf_register_map(ahw);
1999 break;
2000 default:
2001 goto err_out_free_hw_res;
2002 }
2003
2004 err = qlcnic_setup_pci_map(pdev, ahw);
2005 if (err)
2006 goto err_out_free_hw_res;
2007
2008 netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
2009 if (!netdev) {
2010 err = -ENOMEM;
2011 goto err_out_iounmap;
2012 }
2013
2014 SET_NETDEV_DEV(netdev, &pdev->dev);
2015
2016 adapter = netdev_priv(netdev);
2017 adapter->netdev = netdev;
2018 adapter->pdev = pdev;
2019 adapter->ahw = ahw;
2020
2021 adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
2022 if (adapter->qlcnic_wq == NULL) {
2023 err = -ENOMEM;
2024 dev_err(&pdev->dev, "Failed to create workqueue\n");
2025 goto err_out_free_netdev;
2026 }
2027
2028 err = qlcnic_alloc_adapter_resources(adapter);
2029 if (err)
2030 goto err_out_free_netdev;
2031
2032 adapter->dev_rst_time = jiffies;
2033 adapter->ahw->revision_id = pdev->revision;
2034 if (qlcnic_mac_learn == FDB_MAC_LEARN)
2035 adapter->fdb_mac_learn = true;
2036 else if (qlcnic_mac_learn == DRV_MAC_LEARN)
2037 adapter->drv_mac_learn = true;
2038 adapter->max_drv_tx_rings = 1;
2039
2040 rwlock_init(&adapter->ahw->crb_lock);
2041 mutex_init(&adapter->ahw->mem_lock);
2042
2043 spin_lock_init(&adapter->tx_clean_lock);
2044 INIT_LIST_HEAD(&adapter->mac_list);
2045
2046 if (qlcnic_82xx_check(adapter)) {
2047 qlcnic_check_vf(adapter, ent);
2048 adapter->portnum = adapter->ahw->pci_func;
2049 err = qlcnic_start_firmware(adapter);
2050 if (err) {
2051 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
2052 goto err_out_free_hw;
2053 }
2054
2055 err = qlcnic_setup_idc_param(adapter);
2056 if (err)
2057 goto err_out_free_hw;
2058
2059 adapter->flags |= QLCNIC_NEED_FLR;
2060 } else if (qlcnic_83xx_check(adapter)) {
2061 qlcnic_83xx_check_vf(adapter, ent);
2062 adapter->portnum = adapter->ahw->pci_func;
2063 err = qlcnic_83xx_init(adapter, pci_using_dac);
2064 if (err) {
2065 dev_err(&pdev->dev, "%s: failed\n", __func__);
2066 goto err_out_free_hw;
2067 }
2068 if (qlcnic_sriov_vf_check(adapter))
2069 return 0;
2070 } else {
2071 dev_err(&pdev->dev,
2072 "%s: failed. Please Reboot\n", __func__);
2073 goto err_out_free_hw;
2074 }
2075
2076 if (qlcnic_read_mac_addr(adapter))
2077 dev_warn(&pdev->dev, "failed to read mac addr\n");
2078
2079 if (adapter->portnum == 0) {
2080 qlcnic_get_board_name(adapter, board_name);
2081
2082 pr_info("%s: %s Board Chip rev 0x%x\n",
2083 module_name(THIS_MODULE),
2084 board_name, adapter->ahw->revision_id);
2085 }
2086
2087 if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
2088 !!qlcnic_use_msi)
2089 dev_warn(&pdev->dev,
2090 "83xx adapter do not support MSI interrupts\n");
2091
2092 err = qlcnic_setup_intr(adapter, 0);
2093 if (err) {
2094 dev_err(&pdev->dev, "Failed to setup interrupt\n");
2095 goto err_out_disable_msi;
2096 }
2097
2098 if (qlcnic_83xx_check(adapter)) {
2099 err = qlcnic_83xx_setup_mbx_intr(adapter);
2100 if (err)
2101 goto err_out_disable_msi;
2102 }
2103
2104 err = qlcnic_get_act_pci_func(adapter);
2105 if (err)
2106 goto err_out_disable_mbx_intr;
2107
2108 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
2109 if (err)
2110 goto err_out_disable_mbx_intr;
2111
2112 if (qlcnic_82xx_check(adapter)) {
2113 if (ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
2114 capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
2115 if (capab2 & QLCNIC_FW_CAPABILITY_2_OCBB)
2116 qlcnic_fw_cmd_set_drv_version(adapter);
2117 }
2118 }
2119
2120 pci_set_drvdata(pdev, adapter);
2121
2122 if (qlcnic_82xx_check(adapter))
2123 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2124 FW_POLL_DELAY);
2125
2126 switch (adapter->ahw->port_type) {
2127 case QLCNIC_GBE:
2128 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
2129 adapter->netdev->name);
2130 break;
2131 case QLCNIC_XGBE:
2132 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
2133 adapter->netdev->name);
2134 break;
2135 }
2136
2137 if (adapter->drv_mac_learn)
2138 qlcnic_alloc_lb_filters_mem(adapter);
2139
2140 qlcnic_add_sysfs(adapter);
2141
2142 return 0;
2143
2144 err_out_disable_mbx_intr:
2145 if (qlcnic_83xx_check(adapter))
2146 qlcnic_83xx_free_mbx_intr(adapter);
2147
2148 err_out_disable_msi:
2149 qlcnic_teardown_intr(adapter);
2150 qlcnic_cancel_idc_work(adapter);
2151 qlcnic_clr_all_drv_state(adapter, 0);
2152
2153 err_out_free_hw:
2154 qlcnic_free_adapter_resources(adapter);
2155
2156 err_out_free_netdev:
2157 free_netdev(netdev);
2158
2159 err_out_iounmap:
2160 qlcnic_cleanup_pci_map(ahw);
2161
2162 err_out_free_hw_res:
2163 kfree(ahw);
2164
2165 err_out_free_res:
2166 pci_release_regions(pdev);
2167
2168 err_out_disable_pdev:
2169 pci_set_drvdata(pdev, NULL);
2170 pci_disable_device(pdev);
2171 return err;
2172 }
2173
qlcnic_remove(struct pci_dev * pdev)2174 static void qlcnic_remove(struct pci_dev *pdev)
2175 {
2176 struct qlcnic_adapter *adapter;
2177 struct net_device *netdev;
2178 struct qlcnic_hardware_context *ahw;
2179
2180 adapter = pci_get_drvdata(pdev);
2181 if (adapter == NULL)
2182 return;
2183
2184 netdev = adapter->netdev;
2185 qlcnic_sriov_pf_disable(adapter);
2186
2187 qlcnic_cancel_idc_work(adapter);
2188 ahw = adapter->ahw;
2189
2190 unregister_netdev(netdev);
2191 qlcnic_sriov_cleanup(adapter);
2192
2193 if (qlcnic_83xx_check(adapter)) {
2194 qlcnic_83xx_free_mbx_intr(adapter);
2195 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2196 cancel_delayed_work_sync(&adapter->idc_aen_work);
2197 }
2198
2199 qlcnic_detach(adapter);
2200
2201 if (adapter->npars != NULL)
2202 kfree(adapter->npars);
2203 if (adapter->eswitch != NULL)
2204 kfree(adapter->eswitch);
2205
2206 if (qlcnic_82xx_check(adapter))
2207 qlcnic_clr_all_drv_state(adapter, 0);
2208
2209 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2210
2211 qlcnic_free_lb_filters_mem(adapter);
2212
2213 qlcnic_teardown_intr(adapter);
2214
2215 qlcnic_remove_sysfs(adapter);
2216
2217 qlcnic_cleanup_pci_map(adapter->ahw);
2218
2219 qlcnic_release_firmware(adapter);
2220
2221 pci_disable_pcie_error_reporting(pdev);
2222 pci_release_regions(pdev);
2223 pci_disable_device(pdev);
2224 pci_set_drvdata(pdev, NULL);
2225
2226 if (adapter->qlcnic_wq) {
2227 destroy_workqueue(adapter->qlcnic_wq);
2228 adapter->qlcnic_wq = NULL;
2229 }
2230 qlcnic_free_adapter_resources(adapter);
2231 kfree(ahw);
2232 free_netdev(netdev);
2233 }
__qlcnic_shutdown(struct pci_dev * pdev)2234 static int __qlcnic_shutdown(struct pci_dev *pdev)
2235 {
2236 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2237 struct net_device *netdev = adapter->netdev;
2238 int retval;
2239
2240 netif_device_detach(netdev);
2241
2242 qlcnic_cancel_idc_work(adapter);
2243
2244 if (netif_running(netdev))
2245 qlcnic_down(adapter, netdev);
2246
2247 qlcnic_sriov_cleanup(adapter);
2248 if (qlcnic_82xx_check(adapter))
2249 qlcnic_clr_all_drv_state(adapter, 0);
2250
2251 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2252
2253 retval = pci_save_state(pdev);
2254 if (retval)
2255 return retval;
2256 if (qlcnic_82xx_check(adapter)) {
2257 if (qlcnic_wol_supported(adapter)) {
2258 pci_enable_wake(pdev, PCI_D3cold, 1);
2259 pci_enable_wake(pdev, PCI_D3hot, 1);
2260 }
2261 }
2262
2263 return 0;
2264 }
2265
qlcnic_shutdown(struct pci_dev * pdev)2266 static void qlcnic_shutdown(struct pci_dev *pdev)
2267 {
2268 if (__qlcnic_shutdown(pdev))
2269 return;
2270
2271 pci_disable_device(pdev);
2272 }
2273
2274 #ifdef CONFIG_PM
2275 static int
qlcnic_suspend(struct pci_dev * pdev,pm_message_t state)2276 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2277 {
2278 int retval;
2279
2280 retval = __qlcnic_shutdown(pdev);
2281 if (retval)
2282 return retval;
2283
2284 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2285 return 0;
2286 }
2287
2288 static int
qlcnic_resume(struct pci_dev * pdev)2289 qlcnic_resume(struct pci_dev *pdev)
2290 {
2291 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2292 struct net_device *netdev = adapter->netdev;
2293 int err;
2294
2295 err = pci_enable_device(pdev);
2296 if (err)
2297 return err;
2298
2299 pci_set_power_state(pdev, PCI_D0);
2300 pci_set_master(pdev);
2301 pci_restore_state(pdev);
2302
2303 err = qlcnic_start_firmware(adapter);
2304 if (err) {
2305 dev_err(&pdev->dev, "failed to start firmware\n");
2306 return err;
2307 }
2308
2309 if (netif_running(netdev)) {
2310 err = qlcnic_up(adapter, netdev);
2311 if (err)
2312 goto done;
2313
2314 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2315 }
2316 done:
2317 netif_device_attach(netdev);
2318 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2319 return 0;
2320 }
2321 #endif
2322
qlcnic_open(struct net_device * netdev)2323 static int qlcnic_open(struct net_device *netdev)
2324 {
2325 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2326 int err;
2327
2328 netif_carrier_off(netdev);
2329
2330 err = qlcnic_attach(adapter);
2331 if (err)
2332 return err;
2333
2334 err = __qlcnic_up(adapter, netdev);
2335 if (err)
2336 goto err_out;
2337
2338 netif_start_queue(netdev);
2339
2340 return 0;
2341
2342 err_out:
2343 qlcnic_detach(adapter);
2344 return err;
2345 }
2346
2347 /*
2348 * qlcnic_close - Disables a network interface entry point
2349 */
qlcnic_close(struct net_device * netdev)2350 static int qlcnic_close(struct net_device *netdev)
2351 {
2352 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2353
2354 __qlcnic_down(adapter, netdev);
2355
2356 return 0;
2357 }
2358
qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter * adapter)2359 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2360 {
2361 void *head;
2362 int i;
2363 struct net_device *netdev = adapter->netdev;
2364 u32 filter_size = 0;
2365 u16 act_pci_func = 0;
2366
2367 if (adapter->fhash.fmax && adapter->fhash.fhead)
2368 return;
2369
2370 act_pci_func = adapter->ahw->act_pci_func;
2371 spin_lock_init(&adapter->mac_learn_lock);
2372 spin_lock_init(&adapter->rx_mac_learn_lock);
2373
2374 if (qlcnic_82xx_check(adapter)) {
2375 filter_size = QLCNIC_LB_MAX_FILTERS;
2376 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2377 } else {
2378 filter_size = QLC_83XX_LB_MAX_FILTERS;
2379 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2380 }
2381
2382 head = kcalloc(adapter->fhash.fbucket_size,
2383 sizeof(struct hlist_head), GFP_ATOMIC);
2384
2385 if (!head)
2386 return;
2387
2388 adapter->fhash.fmax = (filter_size / act_pci_func);
2389 adapter->fhash.fhead = head;
2390
2391 netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2392 act_pci_func, adapter->fhash.fmax);
2393
2394 for (i = 0; i < adapter->fhash.fbucket_size; i++)
2395 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2396
2397 adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2398
2399 head = kcalloc(adapter->rx_fhash.fbucket_size,
2400 sizeof(struct hlist_head), GFP_ATOMIC);
2401
2402 if (!head)
2403 return;
2404
2405 adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2406 adapter->rx_fhash.fhead = head;
2407
2408 for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2409 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2410 }
2411
qlcnic_free_lb_filters_mem(struct qlcnic_adapter * adapter)2412 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2413 {
2414 if (adapter->fhash.fmax && adapter->fhash.fhead)
2415 kfree(adapter->fhash.fhead);
2416
2417 adapter->fhash.fhead = NULL;
2418 adapter->fhash.fmax = 0;
2419
2420 if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2421 kfree(adapter->rx_fhash.fhead);
2422
2423 adapter->rx_fhash.fmax = 0;
2424 adapter->rx_fhash.fhead = NULL;
2425 }
2426
qlcnic_check_temp(struct qlcnic_adapter * adapter)2427 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2428 {
2429 struct net_device *netdev = adapter->netdev;
2430 u32 temp_state, temp_val, temp = 0;
2431 int rv = 0;
2432
2433 if (qlcnic_83xx_check(adapter))
2434 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2435
2436 if (qlcnic_82xx_check(adapter))
2437 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2438
2439 temp_state = qlcnic_get_temp_state(temp);
2440 temp_val = qlcnic_get_temp_val(temp);
2441
2442 if (temp_state == QLCNIC_TEMP_PANIC) {
2443 dev_err(&netdev->dev,
2444 "Device temperature %d degrees C exceeds"
2445 " maximum allowed. Hardware has been shut down.\n",
2446 temp_val);
2447 rv = 1;
2448 } else if (temp_state == QLCNIC_TEMP_WARN) {
2449 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2450 dev_err(&netdev->dev,
2451 "Device temperature %d degrees C "
2452 "exceeds operating range."
2453 " Immediate action needed.\n",
2454 temp_val);
2455 }
2456 } else {
2457 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2458 dev_info(&netdev->dev,
2459 "Device temperature is now %d degrees C"
2460 " in normal range.\n", temp_val);
2461 }
2462 }
2463 adapter->ahw->temp = temp_state;
2464 return rv;
2465 }
2466
qlcnic_tx_timeout(struct net_device * netdev)2467 static void qlcnic_tx_timeout(struct net_device *netdev)
2468 {
2469 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2470
2471 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2472 return;
2473
2474 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) {
2475 netdev_info(netdev, "Tx timeout, reset the adapter.\n");
2476 if (qlcnic_82xx_check(adapter))
2477 adapter->need_fw_reset = 1;
2478 else if (qlcnic_83xx_check(adapter))
2479 qlcnic_83xx_idc_request_reset(adapter,
2480 QLCNIC_FORCE_FW_DUMP_KEY);
2481 } else {
2482 netdev_info(netdev, "Tx timeout, reset adapter context.\n");
2483 adapter->ahw->reset_context = 1;
2484 }
2485 }
2486
qlcnic_get_stats(struct net_device * netdev)2487 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2488 {
2489 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2490 struct net_device_stats *stats = &netdev->stats;
2491
2492 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2493 stats->tx_packets = adapter->stats.xmitfinished;
2494 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2495 stats->tx_bytes = adapter->stats.txbytes;
2496 stats->rx_dropped = adapter->stats.rxdropped;
2497 stats->tx_dropped = adapter->stats.txdropped;
2498
2499 return stats;
2500 }
2501
qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter * adapter)2502 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2503 {
2504 u32 status;
2505
2506 status = readl(adapter->isr_int_vec);
2507
2508 if (!(status & adapter->ahw->int_vec_bit))
2509 return IRQ_NONE;
2510
2511 /* check interrupt state machine, to be sure */
2512 status = readl(adapter->crb_int_state_reg);
2513 if (!ISR_LEGACY_INT_TRIGGERED(status))
2514 return IRQ_NONE;
2515
2516 writel(0xffffffff, adapter->tgt_status_reg);
2517 /* read twice to ensure write is flushed */
2518 readl(adapter->isr_int_vec);
2519 readl(adapter->isr_int_vec);
2520
2521 return IRQ_HANDLED;
2522 }
2523
qlcnic_tmp_intr(int irq,void * data)2524 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2525 {
2526 struct qlcnic_host_sds_ring *sds_ring = data;
2527 struct qlcnic_adapter *adapter = sds_ring->adapter;
2528
2529 if (adapter->flags & QLCNIC_MSIX_ENABLED)
2530 goto done;
2531 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2532 writel(0xffffffff, adapter->tgt_status_reg);
2533 goto done;
2534 }
2535
2536 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2537 return IRQ_NONE;
2538
2539 done:
2540 adapter->ahw->diag_cnt++;
2541 qlcnic_enable_int(sds_ring);
2542 return IRQ_HANDLED;
2543 }
2544
qlcnic_intr(int irq,void * data)2545 static irqreturn_t qlcnic_intr(int irq, void *data)
2546 {
2547 struct qlcnic_host_sds_ring *sds_ring = data;
2548 struct qlcnic_adapter *adapter = sds_ring->adapter;
2549
2550 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2551 return IRQ_NONE;
2552
2553 napi_schedule(&sds_ring->napi);
2554
2555 return IRQ_HANDLED;
2556 }
2557
qlcnic_msi_intr(int irq,void * data)2558 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2559 {
2560 struct qlcnic_host_sds_ring *sds_ring = data;
2561 struct qlcnic_adapter *adapter = sds_ring->adapter;
2562
2563 /* clear interrupt */
2564 writel(0xffffffff, adapter->tgt_status_reg);
2565
2566 napi_schedule(&sds_ring->napi);
2567 return IRQ_HANDLED;
2568 }
2569
qlcnic_msix_intr(int irq,void * data)2570 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2571 {
2572 struct qlcnic_host_sds_ring *sds_ring = data;
2573
2574 napi_schedule(&sds_ring->napi);
2575 return IRQ_HANDLED;
2576 }
2577
qlcnic_msix_tx_intr(int irq,void * data)2578 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2579 {
2580 struct qlcnic_host_tx_ring *tx_ring = data;
2581
2582 napi_schedule(&tx_ring->napi);
2583 return IRQ_HANDLED;
2584 }
2585
2586 #ifdef CONFIG_NET_POLL_CONTROLLER
qlcnic_poll_controller(struct net_device * netdev)2587 static void qlcnic_poll_controller(struct net_device *netdev)
2588 {
2589 int ring;
2590 struct qlcnic_host_sds_ring *sds_ring;
2591 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2592 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2593
2594 disable_irq(adapter->irq);
2595 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2596 sds_ring = &recv_ctx->sds_rings[ring];
2597 qlcnic_intr(adapter->irq, sds_ring);
2598 }
2599 enable_irq(adapter->irq);
2600 }
2601 #endif
2602
2603 static void
qlcnic_idc_debug_info(struct qlcnic_adapter * adapter,u8 encoding)2604 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2605 {
2606 u32 val;
2607
2608 val = adapter->portnum & 0xf;
2609 val |= encoding << 7;
2610 val |= (jiffies - adapter->dev_rst_time) << 8;
2611
2612 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2613 adapter->dev_rst_time = jiffies;
2614 }
2615
2616 static int
qlcnic_set_drv_state(struct qlcnic_adapter * adapter,u8 state)2617 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2618 {
2619 u32 val;
2620
2621 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2622 state != QLCNIC_DEV_NEED_QUISCENT);
2623
2624 if (qlcnic_api_lock(adapter))
2625 return -EIO;
2626
2627 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2628
2629 if (state == QLCNIC_DEV_NEED_RESET)
2630 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2631 else if (state == QLCNIC_DEV_NEED_QUISCENT)
2632 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2633
2634 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2635
2636 qlcnic_api_unlock(adapter);
2637
2638 return 0;
2639 }
2640
2641 static int
qlcnic_clr_drv_state(struct qlcnic_adapter * adapter)2642 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2643 {
2644 u32 val;
2645
2646 if (qlcnic_api_lock(adapter))
2647 return -EBUSY;
2648
2649 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2650 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2651 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2652
2653 qlcnic_api_unlock(adapter);
2654
2655 return 0;
2656 }
2657
2658 static void
qlcnic_clr_all_drv_state(struct qlcnic_adapter * adapter,u8 failed)2659 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2660 {
2661 u32 val;
2662
2663 if (qlcnic_api_lock(adapter))
2664 goto err;
2665
2666 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2667 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2668 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2669
2670 if (failed) {
2671 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2672 QLCNIC_DEV_FAILED);
2673 dev_info(&adapter->pdev->dev,
2674 "Device state set to Failed. Please Reboot\n");
2675 } else if (!(val & 0x11111111))
2676 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2677 QLCNIC_DEV_COLD);
2678
2679 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2680 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2681 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2682
2683 qlcnic_api_unlock(adapter);
2684 err:
2685 adapter->fw_fail_cnt = 0;
2686 adapter->flags &= ~QLCNIC_FW_HANG;
2687 clear_bit(__QLCNIC_START_FW, &adapter->state);
2688 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2689 }
2690
2691 /* Grab api lock, before checking state */
2692 static int
qlcnic_check_drv_state(struct qlcnic_adapter * adapter)2693 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2694 {
2695 int act, state, active_mask;
2696 struct qlcnic_hardware_context *ahw = adapter->ahw;
2697
2698 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2699 act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2700
2701 if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2702 active_mask = (~(1 << (ahw->pci_func * 4)));
2703 act = act & active_mask;
2704 }
2705
2706 if (((state & 0x11111111) == (act & 0x11111111)) ||
2707 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2708 return 0;
2709 else
2710 return 1;
2711 }
2712
qlcnic_check_idc_ver(struct qlcnic_adapter * adapter)2713 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2714 {
2715 u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2716
2717 if (val != QLCNIC_DRV_IDC_VER) {
2718 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2719 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2720 }
2721
2722 return 0;
2723 }
2724
2725 static int
qlcnic_can_start_firmware(struct qlcnic_adapter * adapter)2726 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2727 {
2728 u32 val, prev_state;
2729 u8 dev_init_timeo = adapter->dev_init_timeo;
2730 u8 portnum = adapter->portnum;
2731 u8 ret;
2732
2733 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2734 return 1;
2735
2736 if (qlcnic_api_lock(adapter))
2737 return -1;
2738
2739 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2740 if (!(val & (1 << (portnum * 4)))) {
2741 QLC_DEV_SET_REF_CNT(val, portnum);
2742 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2743 }
2744
2745 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2746 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2747
2748 switch (prev_state) {
2749 case QLCNIC_DEV_COLD:
2750 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2751 QLCNIC_DEV_INITIALIZING);
2752 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2753 QLCNIC_DRV_IDC_VER);
2754 qlcnic_idc_debug_info(adapter, 0);
2755 qlcnic_api_unlock(adapter);
2756 return 1;
2757
2758 case QLCNIC_DEV_READY:
2759 ret = qlcnic_check_idc_ver(adapter);
2760 qlcnic_api_unlock(adapter);
2761 return ret;
2762
2763 case QLCNIC_DEV_NEED_RESET:
2764 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2765 QLC_DEV_SET_RST_RDY(val, portnum);
2766 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2767 break;
2768
2769 case QLCNIC_DEV_NEED_QUISCENT:
2770 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2771 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2772 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2773 break;
2774
2775 case QLCNIC_DEV_FAILED:
2776 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2777 qlcnic_api_unlock(adapter);
2778 return -1;
2779
2780 case QLCNIC_DEV_INITIALIZING:
2781 case QLCNIC_DEV_QUISCENT:
2782 break;
2783 }
2784
2785 qlcnic_api_unlock(adapter);
2786
2787 do {
2788 msleep(1000);
2789 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2790
2791 if (prev_state == QLCNIC_DEV_QUISCENT)
2792 continue;
2793 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2794
2795 if (!dev_init_timeo) {
2796 dev_err(&adapter->pdev->dev,
2797 "Waiting for device to initialize timeout\n");
2798 return -1;
2799 }
2800
2801 if (qlcnic_api_lock(adapter))
2802 return -1;
2803
2804 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2805 QLC_DEV_CLR_RST_QSCNT(val, portnum);
2806 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2807
2808 ret = qlcnic_check_idc_ver(adapter);
2809 qlcnic_api_unlock(adapter);
2810
2811 return ret;
2812 }
2813
2814 static void
qlcnic_fwinit_work(struct work_struct * work)2815 qlcnic_fwinit_work(struct work_struct *work)
2816 {
2817 struct qlcnic_adapter *adapter = container_of(work,
2818 struct qlcnic_adapter, fw_work.work);
2819 u32 dev_state = 0xf;
2820 u32 val;
2821
2822 if (qlcnic_api_lock(adapter))
2823 goto err_ret;
2824
2825 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2826 if (dev_state == QLCNIC_DEV_QUISCENT ||
2827 dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2828 qlcnic_api_unlock(adapter);
2829 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2830 FW_POLL_DELAY * 2);
2831 return;
2832 }
2833
2834 if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
2835 qlcnic_api_unlock(adapter);
2836 goto wait_npar;
2837 }
2838
2839 if (dev_state == QLCNIC_DEV_INITIALIZING ||
2840 dev_state == QLCNIC_DEV_READY) {
2841 dev_info(&adapter->pdev->dev, "Detected state change from "
2842 "DEV_NEED_RESET, skipping ack check\n");
2843 goto skip_ack_check;
2844 }
2845
2846 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2847 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2848 adapter->reset_ack_timeo);
2849 goto skip_ack_check;
2850 }
2851
2852 if (!qlcnic_check_drv_state(adapter)) {
2853 skip_ack_check:
2854 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2855
2856 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2857 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2858 QLCNIC_DEV_INITIALIZING);
2859 set_bit(__QLCNIC_START_FW, &adapter->state);
2860 QLCDB(adapter, DRV, "Restarting fw\n");
2861 qlcnic_idc_debug_info(adapter, 0);
2862 val = QLC_SHARED_REG_RD32(adapter,
2863 QLCNIC_CRB_DRV_STATE);
2864 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2865 QLC_SHARED_REG_WR32(adapter,
2866 QLCNIC_CRB_DRV_STATE, val);
2867 }
2868
2869 qlcnic_api_unlock(adapter);
2870
2871 rtnl_lock();
2872 if (adapter->ahw->fw_dump.enable &&
2873 (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2874 QLCDB(adapter, DRV, "Take FW dump\n");
2875 qlcnic_dump_fw(adapter);
2876 adapter->flags |= QLCNIC_FW_HANG;
2877 }
2878 rtnl_unlock();
2879
2880 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2881 if (!adapter->nic_ops->start_firmware(adapter)) {
2882 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2883 adapter->fw_wait_cnt = 0;
2884 return;
2885 }
2886 goto err_ret;
2887 }
2888
2889 qlcnic_api_unlock(adapter);
2890
2891 wait_npar:
2892 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2893 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2894
2895 switch (dev_state) {
2896 case QLCNIC_DEV_READY:
2897 if (!qlcnic_start_firmware(adapter)) {
2898 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2899 adapter->fw_wait_cnt = 0;
2900 return;
2901 }
2902 case QLCNIC_DEV_FAILED:
2903 break;
2904 default:
2905 qlcnic_schedule_work(adapter,
2906 qlcnic_fwinit_work, FW_POLL_DELAY);
2907 return;
2908 }
2909
2910 err_ret:
2911 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2912 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2913 netif_device_attach(adapter->netdev);
2914 qlcnic_clr_all_drv_state(adapter, 0);
2915 }
2916
2917 static void
qlcnic_detach_work(struct work_struct * work)2918 qlcnic_detach_work(struct work_struct *work)
2919 {
2920 struct qlcnic_adapter *adapter = container_of(work,
2921 struct qlcnic_adapter, fw_work.work);
2922 struct net_device *netdev = adapter->netdev;
2923 u32 status;
2924
2925 netif_device_detach(netdev);
2926
2927 /* Dont grab rtnl lock during Quiscent mode */
2928 if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2929 if (netif_running(netdev))
2930 __qlcnic_down(adapter, netdev);
2931 } else
2932 qlcnic_down(adapter, netdev);
2933
2934 status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2935
2936 if (status & QLCNIC_RCODE_FATAL_ERROR) {
2937 dev_err(&adapter->pdev->dev,
2938 "Detaching the device: peg halt status1=0x%x\n",
2939 status);
2940
2941 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
2942 dev_err(&adapter->pdev->dev,
2943 "On board active cooling fan failed. "
2944 "Device has been halted.\n");
2945 dev_err(&adapter->pdev->dev,
2946 "Replace the adapter.\n");
2947 }
2948
2949 goto err_ret;
2950 }
2951
2952 if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
2953 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
2954 adapter->ahw->temp);
2955 goto err_ret;
2956 }
2957
2958 /* Dont ack if this instance is the reset owner */
2959 if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2960 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
2961 dev_err(&adapter->pdev->dev,
2962 "Failed to set driver state,"
2963 "detaching the device.\n");
2964 goto err_ret;
2965 }
2966 }
2967
2968 adapter->fw_wait_cnt = 0;
2969
2970 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2971
2972 return;
2973
2974 err_ret:
2975 netif_device_attach(netdev);
2976 qlcnic_clr_all_drv_state(adapter, 1);
2977 }
2978
2979 /*Transit NPAR state to NON Operational */
2980 static void
qlcnic_set_npar_non_operational(struct qlcnic_adapter * adapter)2981 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2982 {
2983 u32 state;
2984
2985 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2986 if (state == QLCNIC_DEV_NPAR_NON_OPER)
2987 return;
2988
2989 if (qlcnic_api_lock(adapter))
2990 return;
2991 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2992 QLCNIC_DEV_NPAR_NON_OPER);
2993 qlcnic_api_unlock(adapter);
2994 }
2995
qlcnic_82xx_dev_request_reset(struct qlcnic_adapter * adapter,u32 key)2996 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
2997 {
2998 u32 state, xg_val = 0, gb_val = 0;
2999
3000 qlcnic_xg_set_xg0_mask(xg_val);
3001 qlcnic_xg_set_xg1_mask(xg_val);
3002 QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
3003 qlcnic_gb_set_gb0_mask(gb_val);
3004 qlcnic_gb_set_gb1_mask(gb_val);
3005 qlcnic_gb_set_gb2_mask(gb_val);
3006 qlcnic_gb_set_gb3_mask(gb_val);
3007 QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
3008 dev_info(&adapter->pdev->dev, "Pause control frames disabled"
3009 " on all ports\n");
3010 adapter->need_fw_reset = 1;
3011
3012 if (qlcnic_api_lock(adapter))
3013 return;
3014
3015 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3016
3017 if (state == QLCNIC_DEV_READY) {
3018 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3019 QLCNIC_DEV_NEED_RESET);
3020 adapter->flags |= QLCNIC_FW_RESET_OWNER;
3021 QLCDB(adapter, DRV, "NEED_RESET state set\n");
3022 qlcnic_idc_debug_info(adapter, 0);
3023 }
3024
3025 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3026 QLCNIC_DEV_NPAR_NON_OPER);
3027 qlcnic_api_unlock(adapter);
3028 }
3029
3030 /* Transit to NPAR READY state from NPAR NOT READY state */
3031 static void
qlcnic_dev_set_npar_ready(struct qlcnic_adapter * adapter)3032 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
3033 {
3034 if (qlcnic_api_lock(adapter))
3035 return;
3036
3037 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
3038 QLCNIC_DEV_NPAR_OPER);
3039 QLCDB(adapter, DRV, "NPAR operational state set\n");
3040
3041 qlcnic_api_unlock(adapter);
3042 }
3043
qlcnic_schedule_work(struct qlcnic_adapter * adapter,work_func_t func,int delay)3044 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
3045 work_func_t func, int delay)
3046 {
3047 if (test_bit(__QLCNIC_AER, &adapter->state))
3048 return;
3049
3050 INIT_DELAYED_WORK(&adapter->fw_work, func);
3051 queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
3052 round_jiffies_relative(delay));
3053 }
3054
3055 static void
qlcnic_attach_work(struct work_struct * work)3056 qlcnic_attach_work(struct work_struct *work)
3057 {
3058 struct qlcnic_adapter *adapter = container_of(work,
3059 struct qlcnic_adapter, fw_work.work);
3060 struct net_device *netdev = adapter->netdev;
3061 u32 npar_state;
3062
3063 if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
3064 npar_state = QLC_SHARED_REG_RD32(adapter,
3065 QLCNIC_CRB_DEV_NPAR_STATE);
3066 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
3067 qlcnic_clr_all_drv_state(adapter, 0);
3068 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
3069 qlcnic_schedule_work(adapter, qlcnic_attach_work,
3070 FW_POLL_DELAY);
3071 else
3072 goto attach;
3073 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
3074 return;
3075 }
3076 attach:
3077 if (netif_running(netdev)) {
3078 if (qlcnic_up(adapter, netdev))
3079 goto done;
3080
3081 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3082 }
3083
3084 done:
3085 netif_device_attach(netdev);
3086 adapter->fw_fail_cnt = 0;
3087 adapter->flags &= ~QLCNIC_FW_HANG;
3088 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3089
3090 if (!qlcnic_clr_drv_state(adapter))
3091 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3092 FW_POLL_DELAY);
3093 }
3094
3095 static int
qlcnic_check_health(struct qlcnic_adapter * adapter)3096 qlcnic_check_health(struct qlcnic_adapter *adapter)
3097 {
3098 u32 state = 0, heartbeat;
3099 u32 peg_status;
3100
3101 if (qlcnic_check_temp(adapter))
3102 goto detach;
3103
3104 if (adapter->need_fw_reset)
3105 qlcnic_dev_request_reset(adapter, 0);
3106
3107 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3108 if (state == QLCNIC_DEV_NEED_RESET) {
3109 qlcnic_set_npar_non_operational(adapter);
3110 adapter->need_fw_reset = 1;
3111 } else if (state == QLCNIC_DEV_NEED_QUISCENT)
3112 goto detach;
3113
3114 heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
3115 if (heartbeat != adapter->heartbeat) {
3116 adapter->heartbeat = heartbeat;
3117 adapter->fw_fail_cnt = 0;
3118 if (adapter->need_fw_reset)
3119 goto detach;
3120
3121 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset)
3122 qlcnic_reset_hw_context(adapter);
3123
3124 return 0;
3125 }
3126
3127 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
3128 return 0;
3129
3130 adapter->flags |= QLCNIC_FW_HANG;
3131
3132 qlcnic_dev_request_reset(adapter, 0);
3133
3134 if (qlcnic_auto_fw_reset)
3135 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
3136
3137 dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3138 peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3139 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3140 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3141 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3142 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3143 "PEG_NET_4_PC: 0x%x\n",
3144 peg_status,
3145 QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3146 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c),
3147 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c),
3148 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c),
3149 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c),
3150 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c));
3151 if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3152 dev_err(&adapter->pdev->dev,
3153 "Firmware aborted with error code 0x00006700. "
3154 "Device is being reset.\n");
3155 detach:
3156 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3157 QLCNIC_DEV_NEED_RESET;
3158
3159 if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3160 &adapter->state)) {
3161
3162 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3163 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3164 }
3165
3166 return 1;
3167 }
3168
3169 static void
qlcnic_fw_poll_work(struct work_struct * work)3170 qlcnic_fw_poll_work(struct work_struct *work)
3171 {
3172 struct qlcnic_adapter *adapter = container_of(work,
3173 struct qlcnic_adapter, fw_work.work);
3174
3175 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3176 goto reschedule;
3177
3178
3179 if (qlcnic_check_health(adapter))
3180 return;
3181
3182 if (adapter->fhash.fnum)
3183 qlcnic_prune_lb_filters(adapter);
3184
3185 reschedule:
3186 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3187 }
3188
qlcnic_is_first_func(struct pci_dev * pdev)3189 static int qlcnic_is_first_func(struct pci_dev *pdev)
3190 {
3191 struct pci_dev *oth_pdev;
3192 int val = pdev->devfn;
3193
3194 while (val-- > 0) {
3195 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3196 (pdev->bus), pdev->bus->number,
3197 PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3198 if (!oth_pdev)
3199 continue;
3200
3201 if (oth_pdev->current_state != PCI_D3cold) {
3202 pci_dev_put(oth_pdev);
3203 return 0;
3204 }
3205 pci_dev_put(oth_pdev);
3206 }
3207 return 1;
3208 }
3209
qlcnic_attach_func(struct pci_dev * pdev)3210 static int qlcnic_attach_func(struct pci_dev *pdev)
3211 {
3212 int err, first_func;
3213 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3214 struct net_device *netdev = adapter->netdev;
3215
3216 pdev->error_state = pci_channel_io_normal;
3217
3218 err = pci_enable_device(pdev);
3219 if (err)
3220 return err;
3221
3222 pci_set_power_state(pdev, PCI_D0);
3223 pci_set_master(pdev);
3224 pci_restore_state(pdev);
3225
3226 first_func = qlcnic_is_first_func(pdev);
3227
3228 if (qlcnic_api_lock(adapter))
3229 return -EINVAL;
3230
3231 if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3232 adapter->need_fw_reset = 1;
3233 set_bit(__QLCNIC_START_FW, &adapter->state);
3234 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3235 QLCNIC_DEV_INITIALIZING);
3236 QLCDB(adapter, DRV, "Restarting fw\n");
3237 }
3238 qlcnic_api_unlock(adapter);
3239
3240 err = qlcnic_start_firmware(adapter);
3241 if (err)
3242 return err;
3243
3244 qlcnic_clr_drv_state(adapter);
3245 kfree(adapter->msix_entries);
3246 adapter->msix_entries = NULL;
3247 err = qlcnic_setup_intr(adapter, 0);
3248
3249 if (err) {
3250 kfree(adapter->msix_entries);
3251 netdev_err(netdev, "failed to setup interrupt\n");
3252 return err;
3253 }
3254
3255 if (qlcnic_83xx_check(adapter)) {
3256 /* register for NIC IDC AEN Events */
3257 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3258 err = qlcnic_83xx_setup_mbx_intr(adapter);
3259 if (err) {
3260 dev_err(&adapter->pdev->dev,
3261 "failed to setup mbx interrupt\n");
3262 qlcnic_clr_all_drv_state(adapter, 1);
3263 clear_bit(__QLCNIC_AER, &adapter->state);
3264 goto done;
3265 }
3266 }
3267
3268 if (netif_running(netdev)) {
3269 err = qlcnic_attach(adapter);
3270 if (err) {
3271 qlcnic_clr_all_drv_state(adapter, 1);
3272 clear_bit(__QLCNIC_AER, &adapter->state);
3273 netif_device_attach(netdev);
3274 return err;
3275 }
3276
3277 err = qlcnic_up(adapter, netdev);
3278 if (err)
3279 goto done;
3280
3281 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3282 }
3283 done:
3284 netif_device_attach(netdev);
3285 return err;
3286 }
3287
qlcnic_io_error_detected(struct pci_dev * pdev,pci_channel_state_t state)3288 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3289 pci_channel_state_t state)
3290 {
3291 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3292 struct net_device *netdev = adapter->netdev;
3293
3294 if (state == pci_channel_io_perm_failure)
3295 return PCI_ERS_RESULT_DISCONNECT;
3296
3297 if (state == pci_channel_io_normal)
3298 return PCI_ERS_RESULT_RECOVERED;
3299
3300 set_bit(__QLCNIC_AER, &adapter->state);
3301 netif_device_detach(netdev);
3302
3303 cancel_delayed_work_sync(&adapter->fw_work);
3304
3305 if (netif_running(netdev))
3306 qlcnic_down(adapter, netdev);
3307
3308 if (qlcnic_83xx_check(adapter)) {
3309 qlcnic_83xx_free_mbx_intr(adapter);
3310 qlcnic_83xx_register_nic_idc_func(adapter, 0);
3311 cancel_delayed_work_sync(&adapter->idc_aen_work);
3312 }
3313
3314 qlcnic_detach(adapter);
3315 qlcnic_teardown_intr(adapter);
3316
3317 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3318
3319 pci_save_state(pdev);
3320 pci_disable_device(pdev);
3321
3322 return PCI_ERS_RESULT_NEED_RESET;
3323 }
3324
qlcnic_io_slot_reset(struct pci_dev * pdev)3325 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3326 {
3327 return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3328 PCI_ERS_RESULT_RECOVERED;
3329 }
3330
qlcnic_io_resume(struct pci_dev * pdev)3331 static void qlcnic_io_resume(struct pci_dev *pdev)
3332 {
3333 u32 state;
3334 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3335
3336 pci_cleanup_aer_uncorrect_error_status(pdev);
3337 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3338 if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3339 &adapter->state))
3340 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3341 FW_POLL_DELAY);
3342 }
3343
3344 static int
qlcnicvf_start_firmware(struct qlcnic_adapter * adapter)3345 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3346 {
3347 int err;
3348
3349 err = qlcnic_can_start_firmware(adapter);
3350 if (err)
3351 return err;
3352
3353 err = qlcnic_check_npar_opertional(adapter);
3354 if (err)
3355 return err;
3356
3357 err = qlcnic_initialize_nic(adapter);
3358 if (err)
3359 return err;
3360
3361 qlcnic_check_options(adapter);
3362
3363 err = qlcnic_set_eswitch_port_config(adapter);
3364 if (err)
3365 return err;
3366
3367 adapter->need_fw_reset = 0;
3368
3369 return err;
3370 }
3371
qlcnic_validate_max_rss(struct qlcnic_adapter * adapter,__u32 val)3372 int qlcnic_validate_max_rss(struct qlcnic_adapter *adapter,
3373 __u32 val)
3374 {
3375 struct net_device *netdev = adapter->netdev;
3376 u8 max_hw = adapter->ahw->max_rx_ques;
3377 u32 max_allowed;
3378
3379 if (val > QLC_MAX_SDS_RINGS) {
3380 netdev_err(netdev, "RSS value should not be higher than %u\n",
3381 QLC_MAX_SDS_RINGS);
3382 return -EINVAL;
3383 }
3384
3385 max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3386 num_online_cpus()));
3387 if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3388 if (!is_power_of_2(val))
3389 netdev_err(netdev, "RSS value should be a power of 2\n");
3390
3391 if (val < 2)
3392 netdev_err(netdev, "RSS value should not be lower than 2\n");
3393
3394 if (val > max_hw)
3395 netdev_err(netdev,
3396 "RSS value should not be higher than[%u], the max RSS rings supported by the adapter\n",
3397 max_hw);
3398
3399 if (val > num_online_cpus())
3400 netdev_err(netdev,
3401 "RSS value should not be higher than[%u], number of online CPUs in the system\n",
3402 num_online_cpus());
3403
3404 netdev_err(netdev, "Unable to configure %u RSS rings\n", val);
3405
3406 return -EINVAL;
3407 }
3408 return 0;
3409 }
3410
qlcnic_set_max_rss(struct qlcnic_adapter * adapter,u8 data,size_t len)3411 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, size_t len)
3412 {
3413 int err;
3414 struct net_device *netdev = adapter->netdev;
3415
3416 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3417 return -EBUSY;
3418
3419 netif_device_detach(netdev);
3420 if (netif_running(netdev))
3421 __qlcnic_down(adapter, netdev);
3422
3423 qlcnic_detach(adapter);
3424
3425 if (qlcnic_83xx_check(adapter)) {
3426 qlcnic_83xx_free_mbx_intr(adapter);
3427 qlcnic_83xx_enable_mbx_poll(adapter);
3428 }
3429
3430 qlcnic_teardown_intr(adapter);
3431 err = qlcnic_setup_intr(adapter, data);
3432 if (err) {
3433 kfree(adapter->msix_entries);
3434 netdev_err(netdev, "failed to setup interrupt\n");
3435 return err;
3436 }
3437
3438 if (qlcnic_83xx_check(adapter)) {
3439 /* register for NIC IDC AEN Events */
3440 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3441 err = qlcnic_83xx_setup_mbx_intr(adapter);
3442 qlcnic_83xx_disable_mbx_poll(adapter);
3443 if (err) {
3444 dev_err(&adapter->pdev->dev,
3445 "failed to setup mbx interrupt\n");
3446 goto done;
3447 }
3448 }
3449
3450 if (netif_running(netdev)) {
3451 err = qlcnic_attach(adapter);
3452 if (err)
3453 goto done;
3454 err = __qlcnic_up(adapter, netdev);
3455 if (err)
3456 goto done;
3457 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3458 }
3459 err = len;
3460 done:
3461 netif_device_attach(netdev);
3462 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3463 return err;
3464 }
3465
3466 #ifdef CONFIG_INET
3467
3468 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3469
3470 static void
qlcnic_config_indev_addr(struct qlcnic_adapter * adapter,struct net_device * dev,unsigned long event)3471 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3472 struct net_device *dev, unsigned long event)
3473 {
3474 struct in_device *indev;
3475
3476 indev = in_dev_get(dev);
3477 if (!indev)
3478 return;
3479
3480 for_ifa(indev) {
3481 switch (event) {
3482 case NETDEV_UP:
3483 qlcnic_config_ipaddr(adapter,
3484 ifa->ifa_address, QLCNIC_IP_UP);
3485 break;
3486 case NETDEV_DOWN:
3487 qlcnic_config_ipaddr(adapter,
3488 ifa->ifa_address, QLCNIC_IP_DOWN);
3489 break;
3490 default:
3491 break;
3492 }
3493 } endfor_ifa(indev);
3494
3495 in_dev_put(indev);
3496 }
3497
qlcnic_restore_indev_addr(struct net_device * netdev,unsigned long event)3498 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3499 {
3500 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3501 struct net_device *dev;
3502 u16 vid;
3503
3504 qlcnic_config_indev_addr(adapter, netdev, event);
3505
3506 rcu_read_lock();
3507 for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3508 dev = __vlan_find_dev_deep(netdev, htons(ETH_P_8021Q), vid);
3509 if (!dev)
3510 continue;
3511 qlcnic_config_indev_addr(adapter, dev, event);
3512 }
3513 rcu_read_unlock();
3514 }
3515
qlcnic_netdev_event(struct notifier_block * this,unsigned long event,void * ptr)3516 static int qlcnic_netdev_event(struct notifier_block *this,
3517 unsigned long event, void *ptr)
3518 {
3519 struct qlcnic_adapter *adapter;
3520 struct net_device *dev = (struct net_device *)ptr;
3521
3522 recheck:
3523 if (dev == NULL)
3524 goto done;
3525
3526 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3527 dev = vlan_dev_real_dev(dev);
3528 goto recheck;
3529 }
3530
3531 if (!is_qlcnic_netdev(dev))
3532 goto done;
3533
3534 adapter = netdev_priv(dev);
3535
3536 if (!adapter)
3537 goto done;
3538
3539 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3540 goto done;
3541
3542 qlcnic_config_indev_addr(adapter, dev, event);
3543 done:
3544 return NOTIFY_DONE;
3545 }
3546
3547 static int
qlcnic_inetaddr_event(struct notifier_block * this,unsigned long event,void * ptr)3548 qlcnic_inetaddr_event(struct notifier_block *this,
3549 unsigned long event, void *ptr)
3550 {
3551 struct qlcnic_adapter *adapter;
3552 struct net_device *dev;
3553
3554 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3555
3556 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3557
3558 recheck:
3559 if (dev == NULL)
3560 goto done;
3561
3562 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3563 dev = vlan_dev_real_dev(dev);
3564 goto recheck;
3565 }
3566
3567 if (!is_qlcnic_netdev(dev))
3568 goto done;
3569
3570 adapter = netdev_priv(dev);
3571
3572 if (!adapter)
3573 goto done;
3574
3575 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3576 goto done;
3577
3578 switch (event) {
3579 case NETDEV_UP:
3580 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3581
3582 break;
3583 case NETDEV_DOWN:
3584 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3585
3586 break;
3587 default:
3588 break;
3589 }
3590
3591 done:
3592 return NOTIFY_DONE;
3593 }
3594
3595 static struct notifier_block qlcnic_netdev_cb = {
3596 .notifier_call = qlcnic_netdev_event,
3597 };
3598
3599 static struct notifier_block qlcnic_inetaddr_cb = {
3600 .notifier_call = qlcnic_inetaddr_event,
3601 };
3602 #else
qlcnic_restore_indev_addr(struct net_device * dev,unsigned long event)3603 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3604 { }
3605 #endif
3606 static const struct pci_error_handlers qlcnic_err_handler = {
3607 .error_detected = qlcnic_io_error_detected,
3608 .slot_reset = qlcnic_io_slot_reset,
3609 .resume = qlcnic_io_resume,
3610 };
3611
3612 static struct pci_driver qlcnic_driver = {
3613 .name = qlcnic_driver_name,
3614 .id_table = qlcnic_pci_tbl,
3615 .probe = qlcnic_probe,
3616 .remove = qlcnic_remove,
3617 #ifdef CONFIG_PM
3618 .suspend = qlcnic_suspend,
3619 .resume = qlcnic_resume,
3620 #endif
3621 .shutdown = qlcnic_shutdown,
3622 .err_handler = &qlcnic_err_handler,
3623 #ifdef CONFIG_QLCNIC_SRIOV
3624 .sriov_configure = qlcnic_pci_sriov_configure,
3625 #endif
3626
3627 };
3628
qlcnic_init_module(void)3629 static int __init qlcnic_init_module(void)
3630 {
3631 int ret;
3632
3633 printk(KERN_INFO "%s\n", qlcnic_driver_string);
3634
3635 #ifdef CONFIG_INET
3636 register_netdevice_notifier(&qlcnic_netdev_cb);
3637 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3638 #endif
3639
3640 ret = pci_register_driver(&qlcnic_driver);
3641 if (ret) {
3642 #ifdef CONFIG_INET
3643 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3644 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3645 #endif
3646 }
3647
3648 return ret;
3649 }
3650
3651 module_init(qlcnic_init_module);
3652
qlcnic_exit_module(void)3653 static void __exit qlcnic_exit_module(void)
3654 {
3655 pci_unregister_driver(&qlcnic_driver);
3656
3657 #ifdef CONFIG_INET
3658 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3659 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3660 #endif
3661 }
3662
3663 module_exit(qlcnic_exit_module);
3664