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qlcnic: Support VF-PF communication channel commands.
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / net / ethernet / qlogic / qlcnic / qlcnic_main.c
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 void qlcnic_set_netdev_features(struct qlcnic_adapter *,
88 struct qlcnic_esw_func_cfg *);
89 static int qlcnic_vlan_rx_add(struct net_device *, u16);
90 static int qlcnic_vlan_rx_del(struct net_device *, u16);
91
92 #define QLCNIC_IS_TSO_CAPABLE(adapter) \
93 ((adapter)->ahw->capabilities & QLCNIC_FW_CAPABILITY_TSO)
94
95 static u32 qlcnic_vlan_tx_check(struct qlcnic_adapter *adapter)
96 {
97 struct qlcnic_hardware_context *ahw = adapter->ahw;
98
99 if (adapter->pdev->device == PCI_DEVICE_ID_QLOGIC_QLE824X)
100 return ahw->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX;
101 else
102 return 1;
103 }
104
105 /* PCI Device ID Table */
106 #define ENTRY(device) \
107 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
108 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
109
110 static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
111 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
112 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE834X),
113 ENTRY(PCI_DEVICE_ID_QLOGIC_VF_QLE834X),
114 {0,}
115 };
116
117 MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
118
119
120 inline void qlcnic_update_cmd_producer(struct qlcnic_host_tx_ring *tx_ring)
121 {
122 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
123 }
124
125 static const u32 msi_tgt_status[8] = {
126 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
127 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
128 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
129 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
130 };
131
132 static const u32 qlcnic_reg_tbl[] = {
133 0x1B20A8, /* PEG_HALT_STAT1 */
134 0x1B20AC, /* PEG_HALT_STAT2 */
135 0x1B20B0, /* FW_HEARTBEAT */
136 0x1B2100, /* LOCK ID */
137 0x1B2128, /* FW_CAPABILITIES */
138 0x1B2138, /* drv active */
139 0x1B2140, /* dev state */
140 0x1B2144, /* drv state */
141 0x1B2148, /* drv scratch */
142 0x1B214C, /* dev partition info */
143 0x1B2174, /* drv idc ver */
144 0x1B2150, /* fw version major */
145 0x1B2154, /* fw version minor */
146 0x1B2158, /* fw version sub */
147 0x1B219C, /* npar state */
148 0x1B21FC, /* FW_IMG_VALID */
149 0x1B2250, /* CMD_PEG_STATE */
150 0x1B233C, /* RCV_PEG_STATE */
151 0x1B23B4, /* ASIC TEMP */
152 0x1B216C, /* FW api */
153 0x1B2170, /* drv op mode */
154 0x13C010, /* flash lock */
155 0x13C014, /* flash unlock */
156 };
157
158 static const struct qlcnic_board_info qlcnic_boards[] = {
159 {0x1077, 0x8020, 0x1077, 0x203,
160 "8200 Series Single Port 10GbE Converged Network Adapter"
161 "(TCP/IP Networking)"},
162 {0x1077, 0x8020, 0x1077, 0x207,
163 "8200 Series Dual Port 10GbE Converged Network Adapter"
164 "(TCP/IP Networking)"},
165 {0x1077, 0x8020, 0x1077, 0x20b,
166 "3200 Series Dual Port 10Gb Intelligent Ethernet Adapter"},
167 {0x1077, 0x8020, 0x1077, 0x20c,
168 "3200 Series Quad Port 1Gb Intelligent Ethernet Adapter"},
169 {0x1077, 0x8020, 0x1077, 0x20f,
170 "3200 Series Single Port 10Gb Intelligent Ethernet Adapter"},
171 {0x1077, 0x8020, 0x103c, 0x3733,
172 "NC523SFP 10Gb 2-port Server Adapter"},
173 {0x1077, 0x8020, 0x103c, 0x3346,
174 "CN1000Q Dual Port Converged Network Adapter"},
175 {0x1077, 0x8020, 0x1077, 0x210,
176 "QME8242-k 10GbE Dual Port Mezzanine Card"},
177 {0x1077, 0x8020, 0x0, 0x0, "cLOM8214 1/10GbE Controller"},
178 };
179
180 #define NUM_SUPPORTED_BOARDS ARRAY_SIZE(qlcnic_boards)
181 #define QLC_MAX_SDS_RINGS 8
182
183 static const
184 struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
185
186 int qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
187 {
188 int size = sizeof(struct qlcnic_host_sds_ring) * count;
189
190 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
191
192 return recv_ctx->sds_rings == NULL;
193 }
194
195 void qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
196 {
197 if (recv_ctx->sds_rings != NULL)
198 kfree(recv_ctx->sds_rings);
199
200 recv_ctx->sds_rings = NULL;
201 }
202
203 int qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
204 {
205 u8 mac_addr[ETH_ALEN];
206 struct net_device *netdev = adapter->netdev;
207 struct pci_dev *pdev = adapter->pdev;
208
209 if (qlcnic_get_mac_address(adapter, mac_addr) != 0)
210 return -EIO;
211
212 memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
213 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
214
215 /* set station address */
216
217 if (!is_valid_ether_addr(netdev->dev_addr))
218 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
219 netdev->dev_addr);
220
221 return 0;
222 }
223
224 static int qlcnic_set_mac(struct net_device *netdev, void *p)
225 {
226 struct qlcnic_adapter *adapter = netdev_priv(netdev);
227 struct sockaddr *addr = p;
228
229 if (qlcnic_sriov_vf_check(adapter))
230 return -EINVAL;
231
232 if ((adapter->flags & QLCNIC_MAC_OVERRIDE_DISABLED))
233 return -EOPNOTSUPP;
234
235 if (!is_valid_ether_addr(addr->sa_data))
236 return -EINVAL;
237
238 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
239 netif_device_detach(netdev);
240 qlcnic_napi_disable(adapter);
241 }
242
243 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
244 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
245 qlcnic_set_multi(adapter->netdev);
246
247 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
248 netif_device_attach(netdev);
249 qlcnic_napi_enable(adapter);
250 }
251 return 0;
252 }
253
254 static int qlcnic_fdb_del(struct ndmsg *ndm, struct nlattr *tb[],
255 struct net_device *netdev, const unsigned char *addr)
256 {
257 struct qlcnic_adapter *adapter = netdev_priv(netdev);
258 int err = -EOPNOTSUPP;
259
260 if (!adapter->fdb_mac_learn)
261 return ndo_dflt_fdb_del(ndm, tb, netdev, addr);
262
263 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
264 if (is_unicast_ether_addr(addr))
265 err = qlcnic_nic_del_mac(adapter, addr);
266 else if (is_multicast_ether_addr(addr))
267 err = dev_mc_del(netdev, addr);
268 else
269 err = -EINVAL;
270 }
271 return err;
272 }
273
274 static int qlcnic_fdb_add(struct ndmsg *ndm, struct nlattr *tb[],
275 struct net_device *netdev,
276 const unsigned char *addr, u16 flags)
277 {
278 struct qlcnic_adapter *adapter = netdev_priv(netdev);
279 int err = 0;
280
281 if (!adapter->fdb_mac_learn)
282 return ndo_dflt_fdb_add(ndm, tb, netdev, addr, flags);
283
284 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
285 pr_info("%s: FDB e-switch is not enabled\n", __func__);
286 return -EOPNOTSUPP;
287 }
288
289 if (ether_addr_equal(addr, adapter->mac_addr))
290 return err;
291
292 if (is_unicast_ether_addr(addr))
293 err = qlcnic_nic_add_mac(adapter, addr);
294 else if (is_multicast_ether_addr(addr))
295 err = dev_mc_add_excl(netdev, addr);
296 else
297 err = -EINVAL;
298
299 return err;
300 }
301
302 static int qlcnic_fdb_dump(struct sk_buff *skb, struct netlink_callback *ncb,
303 struct net_device *netdev, int idx)
304 {
305 struct qlcnic_adapter *adapter = netdev_priv(netdev);
306
307 if (!adapter->fdb_mac_learn)
308 return ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
309
310 if (adapter->flags & QLCNIC_ESWITCH_ENABLED)
311 idx = ndo_dflt_fdb_dump(skb, ncb, netdev, idx);
312
313 return idx;
314 }
315
316 static void qlcnic_82xx_cancel_idc_work(struct qlcnic_adapter *adapter)
317 {
318 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
319 usleep_range(10000, 11000);
320
321 cancel_delayed_work_sync(&adapter->fw_work);
322 }
323
324 static const struct net_device_ops qlcnic_netdev_ops = {
325 .ndo_open = qlcnic_open,
326 .ndo_stop = qlcnic_close,
327 .ndo_start_xmit = qlcnic_xmit_frame,
328 .ndo_get_stats = qlcnic_get_stats,
329 .ndo_validate_addr = eth_validate_addr,
330 .ndo_set_rx_mode = qlcnic_set_multi,
331 .ndo_set_mac_address = qlcnic_set_mac,
332 .ndo_change_mtu = qlcnic_change_mtu,
333 .ndo_fix_features = qlcnic_fix_features,
334 .ndo_set_features = qlcnic_set_features,
335 .ndo_tx_timeout = qlcnic_tx_timeout,
336 .ndo_vlan_rx_add_vid = qlcnic_vlan_rx_add,
337 .ndo_vlan_rx_kill_vid = qlcnic_vlan_rx_del,
338 .ndo_fdb_add = qlcnic_fdb_add,
339 .ndo_fdb_del = qlcnic_fdb_del,
340 .ndo_fdb_dump = qlcnic_fdb_dump,
341 #ifdef CONFIG_NET_POLL_CONTROLLER
342 .ndo_poll_controller = qlcnic_poll_controller,
343 #endif
344 };
345
346 static const struct net_device_ops qlcnic_netdev_failed_ops = {
347 .ndo_open = qlcnic_open,
348 };
349
350 static struct qlcnic_nic_template qlcnic_ops = {
351 .config_bridged_mode = qlcnic_config_bridged_mode,
352 .config_led = qlcnic_82xx_config_led,
353 .start_firmware = qlcnic_82xx_start_firmware,
354 .request_reset = qlcnic_82xx_dev_request_reset,
355 .cancel_idc_work = qlcnic_82xx_cancel_idc_work,
356 .napi_add = qlcnic_82xx_napi_add,
357 .napi_del = qlcnic_82xx_napi_del,
358 .config_ipaddr = qlcnic_82xx_config_ipaddr,
359 .clear_legacy_intr = qlcnic_82xx_clear_legacy_intr,
360 };
361
362 struct qlcnic_nic_template qlcnic_vf_ops = {
363 .config_bridged_mode = qlcnicvf_config_bridged_mode,
364 .config_led = qlcnicvf_config_led,
365 .start_firmware = qlcnicvf_start_firmware
366 };
367
368 static struct qlcnic_hardware_ops qlcnic_hw_ops = {
369 .read_crb = qlcnic_82xx_read_crb,
370 .write_crb = qlcnic_82xx_write_crb,
371 .read_reg = qlcnic_82xx_hw_read_wx_2M,
372 .write_reg = qlcnic_82xx_hw_write_wx_2M,
373 .get_mac_address = qlcnic_82xx_get_mac_address,
374 .setup_intr = qlcnic_82xx_setup_intr,
375 .alloc_mbx_args = qlcnic_82xx_alloc_mbx_args,
376 .mbx_cmd = qlcnic_82xx_issue_cmd,
377 .get_func_no = qlcnic_82xx_get_func_no,
378 .api_lock = qlcnic_82xx_api_lock,
379 .api_unlock = qlcnic_82xx_api_unlock,
380 .add_sysfs = qlcnic_82xx_add_sysfs,
381 .remove_sysfs = qlcnic_82xx_remove_sysfs,
382 .process_lb_rcv_ring_diag = qlcnic_82xx_process_rcv_ring_diag,
383 .create_rx_ctx = qlcnic_82xx_fw_cmd_create_rx_ctx,
384 .create_tx_ctx = qlcnic_82xx_fw_cmd_create_tx_ctx,
385 .del_rx_ctx = qlcnic_82xx_fw_cmd_del_rx_ctx,
386 .del_tx_ctx = qlcnic_82xx_fw_cmd_del_tx_ctx,
387 .setup_link_event = qlcnic_82xx_linkevent_request,
388 .get_nic_info = qlcnic_82xx_get_nic_info,
389 .get_pci_info = qlcnic_82xx_get_pci_info,
390 .set_nic_info = qlcnic_82xx_set_nic_info,
391 .change_macvlan = qlcnic_82xx_sre_macaddr_change,
392 .napi_enable = qlcnic_82xx_napi_enable,
393 .napi_disable = qlcnic_82xx_napi_disable,
394 .config_intr_coal = qlcnic_82xx_config_intr_coalesce,
395 .config_rss = qlcnic_82xx_config_rss,
396 .config_hw_lro = qlcnic_82xx_config_hw_lro,
397 .config_loopback = qlcnic_82xx_set_lb_mode,
398 .clear_loopback = qlcnic_82xx_clear_lb_mode,
399 .config_promisc_mode = qlcnic_82xx_nic_set_promisc,
400 .change_l2_filter = qlcnic_82xx_change_filter,
401 .get_board_info = qlcnic_82xx_get_board_info,
402 };
403
404 int qlcnic_enable_msix(struct qlcnic_adapter *adapter, u32 num_msix)
405 {
406 struct pci_dev *pdev = adapter->pdev;
407 int err = -1, i;
408 int max_tx_rings, tx_vector;
409
410 if (adapter->flags & QLCNIC_TX_INTR_SHARED) {
411 max_tx_rings = 0;
412 tx_vector = 0;
413 } else {
414 max_tx_rings = adapter->max_drv_tx_rings;
415 tx_vector = 1;
416 }
417
418 if (!adapter->msix_entries) {
419 adapter->msix_entries = kcalloc(num_msix,
420 sizeof(struct msix_entry),
421 GFP_KERNEL);
422 if (!adapter->msix_entries)
423 return -ENOMEM;
424 }
425
426 adapter->max_sds_rings = 1;
427 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
428
429 if (adapter->ahw->msix_supported) {
430 enable_msix:
431 for (i = 0; i < num_msix; i++)
432 adapter->msix_entries[i].entry = i;
433 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
434 if (err == 0) {
435 adapter->flags |= QLCNIC_MSIX_ENABLED;
436 if (qlcnic_83xx_check(adapter)) {
437 adapter->ahw->num_msix = num_msix;
438 /* subtract mail box and tx ring vectors */
439 adapter->max_sds_rings = num_msix -
440 max_tx_rings - 1;
441 } else {
442 adapter->max_sds_rings = num_msix;
443 }
444 dev_info(&pdev->dev, "using msi-x interrupts\n");
445 return err;
446 } else if (err > 0) {
447 dev_info(&pdev->dev,
448 "Unable to allocate %d MSI-X interrupt vectors\n",
449 num_msix);
450 if (qlcnic_83xx_check(adapter)) {
451 if (err < (QLC_83XX_MINIMUM_VECTOR - tx_vector))
452 return err;
453 err -= (max_tx_rings + 1);
454 num_msix = rounddown_pow_of_two(err);
455 num_msix += (max_tx_rings + 1);
456 } else {
457 num_msix = rounddown_pow_of_two(err);
458 }
459
460 if (num_msix) {
461 dev_info(&pdev->dev,
462 "Trying to allocate %d MSI-X interrupt vectors\n",
463 num_msix);
464 goto enable_msix;
465 }
466 } else {
467 dev_info(&pdev->dev,
468 "Unable to allocate %d MSI-X interrupt vectors\n",
469 num_msix);
470 }
471 }
472
473 return err;
474 }
475
476 static int qlcnic_enable_msi_legacy(struct qlcnic_adapter *adapter)
477 {
478 int err = 0;
479 u32 offset, mask_reg;
480 const struct qlcnic_legacy_intr_set *legacy_intrp;
481 struct qlcnic_hardware_context *ahw = adapter->ahw;
482 struct pci_dev *pdev = adapter->pdev;
483
484 if (qlcnic_use_msi && !pci_enable_msi(pdev)) {
485 adapter->flags |= QLCNIC_MSI_ENABLED;
486 offset = msi_tgt_status[adapter->ahw->pci_func];
487 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter->ahw,
488 offset);
489 dev_info(&pdev->dev, "using msi interrupts\n");
490 adapter->msix_entries[0].vector = pdev->irq;
491 return err;
492 }
493 if (qlcnic_use_msi || qlcnic_use_msi_x)
494 return -EOPNOTSUPP;
495
496 legacy_intrp = &legacy_intr[adapter->ahw->pci_func];
497 adapter->ahw->int_vec_bit = legacy_intrp->int_vec_bit;
498 offset = legacy_intrp->tgt_status_reg;
499 adapter->tgt_status_reg = qlcnic_get_ioaddr(ahw, offset);
500 mask_reg = legacy_intrp->tgt_mask_reg;
501 adapter->tgt_mask_reg = qlcnic_get_ioaddr(ahw, mask_reg);
502 adapter->isr_int_vec = qlcnic_get_ioaddr(ahw, ISR_INT_VECTOR);
503 adapter->crb_int_state_reg = qlcnic_get_ioaddr(ahw, ISR_INT_STATE_REG);
504 dev_info(&pdev->dev, "using legacy interrupts\n");
505 adapter->msix_entries[0].vector = pdev->irq;
506 return err;
507 }
508
509 int qlcnic_82xx_setup_intr(struct qlcnic_adapter *adapter, u8 num_intr)
510 {
511 int num_msix, err = 0;
512
513 if (!num_intr)
514 num_intr = QLCNIC_DEF_NUM_STS_DESC_RINGS;
515
516 if (adapter->ahw->msix_supported)
517 num_msix = rounddown_pow_of_two(min_t(int, num_online_cpus(),
518 num_intr));
519 else
520 num_msix = 1;
521
522 err = qlcnic_enable_msix(adapter, num_msix);
523 if (err == -ENOMEM || !err)
524 return err;
525
526 err = qlcnic_enable_msi_legacy(adapter);
527 if (!err)
528 return err;
529
530 return -EIO;
531 }
532
533 void qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
534 {
535 if (adapter->flags & QLCNIC_MSIX_ENABLED)
536 pci_disable_msix(adapter->pdev);
537 if (adapter->flags & QLCNIC_MSI_ENABLED)
538 pci_disable_msi(adapter->pdev);
539
540 kfree(adapter->msix_entries);
541 adapter->msix_entries = NULL;
542
543 if (adapter->ahw->intr_tbl) {
544 vfree(adapter->ahw->intr_tbl);
545 adapter->ahw->intr_tbl = NULL;
546 }
547 }
548
549 static void
550 qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
551 {
552 if (adapter->ahw->pci_base0 != NULL)
553 iounmap(adapter->ahw->pci_base0);
554 }
555
556 static int qlcnic_get_act_pci_func(struct qlcnic_adapter *adapter)
557 {
558 struct qlcnic_pci_info *pci_info;
559 int ret;
560
561 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
562 switch (adapter->ahw->port_type) {
563 case QLCNIC_GBE:
564 adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_GBE_PORTS;
565 break;
566 case QLCNIC_XGBE:
567 adapter->ahw->act_pci_func = QLCNIC_NIU_MAX_XG_PORTS;
568 break;
569 }
570 return 0;
571 }
572
573 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
574 return 0;
575
576 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
577 if (!pci_info)
578 return -ENOMEM;
579
580 ret = qlcnic_get_pci_info(adapter, pci_info);
581 kfree(pci_info);
582 return ret;
583 }
584
585 int qlcnic_init_pci_info(struct qlcnic_adapter *adapter)
586 {
587 struct qlcnic_pci_info *pci_info;
588 int i, ret = 0, j = 0;
589 u16 act_pci_func;
590 u8 pfn;
591
592 pci_info = kcalloc(QLCNIC_MAX_PCI_FUNC, sizeof(*pci_info), GFP_KERNEL);
593 if (!pci_info)
594 return -ENOMEM;
595
596 ret = qlcnic_get_pci_info(adapter, pci_info);
597 if (ret)
598 goto err_pci_info;
599
600 act_pci_func = adapter->ahw->act_pci_func;
601
602 adapter->npars = kzalloc(sizeof(struct qlcnic_npar_info) *
603 act_pci_func, GFP_KERNEL);
604 if (!adapter->npars) {
605 ret = -ENOMEM;
606 goto err_pci_info;
607 }
608
609 adapter->eswitch = kzalloc(sizeof(struct qlcnic_eswitch) *
610 QLCNIC_NIU_MAX_XG_PORTS, GFP_KERNEL);
611 if (!adapter->eswitch) {
612 ret = -ENOMEM;
613 goto err_npars;
614 }
615
616 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
617 pfn = pci_info[i].id;
618
619 if (pfn >= QLCNIC_MAX_PCI_FUNC) {
620 ret = QL_STATUS_INVALID_PARAM;
621 goto err_eswitch;
622 }
623
624 if (!pci_info[i].active ||
625 (pci_info[i].type != QLCNIC_TYPE_NIC))
626 continue;
627
628 adapter->npars[j].pci_func = pfn;
629 adapter->npars[j].active = (u8)pci_info[i].active;
630 adapter->npars[j].type = (u8)pci_info[i].type;
631 adapter->npars[j].phy_port = (u8)pci_info[i].default_port;
632 adapter->npars[j].min_bw = pci_info[i].tx_min_bw;
633 adapter->npars[j].max_bw = pci_info[i].tx_max_bw;
634 j++;
635 }
636
637 for (i = 0; i < QLCNIC_NIU_MAX_XG_PORTS; i++) {
638 adapter->eswitch[i].flags |= QLCNIC_SWITCH_ENABLE;
639 if (qlcnic_83xx_check(adapter))
640 qlcnic_enable_eswitch(adapter, i, 1);
641 }
642
643 kfree(pci_info);
644 return 0;
645
646 err_eswitch:
647 kfree(adapter->eswitch);
648 adapter->eswitch = NULL;
649 err_npars:
650 kfree(adapter->npars);
651 adapter->npars = NULL;
652 err_pci_info:
653 kfree(pci_info);
654
655 return ret;
656 }
657
658 static int
659 qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
660 {
661 u8 id;
662 int i, ret = 1;
663 u32 data = QLCNIC_MGMT_FUNC;
664 struct qlcnic_hardware_context *ahw = adapter->ahw;
665
666 ret = qlcnic_api_lock(adapter);
667 if (ret)
668 goto err_lock;
669
670 if (qlcnic_config_npars) {
671 for (i = 0; i < ahw->act_pci_func; i++) {
672 id = adapter->npars[i].pci_func;
673 if (id == ahw->pci_func)
674 continue;
675 data |= (qlcnic_config_npars &
676 QLC_DEV_SET_DRV(0xf, id));
677 }
678 } else {
679 data = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
680 data = (data & ~QLC_DEV_SET_DRV(0xf, ahw->pci_func)) |
681 (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
682 ahw->pci_func));
683 }
684 QLC_SHARED_REG_WR32(adapter, QLCNIC_DRV_OP_MODE, data);
685 qlcnic_api_unlock(adapter);
686 err_lock:
687 return ret;
688 }
689
690 static void qlcnic_check_vf(struct qlcnic_adapter *adapter,
691 const struct pci_device_id *ent)
692 {
693 u32 op_mode, priv_level;
694
695 /* Determine FW API version */
696 adapter->ahw->fw_hal_version = QLC_SHARED_REG_RD32(adapter,
697 QLCNIC_FW_API);
698
699 /* Find PCI function number */
700 qlcnic_get_func_no(adapter);
701
702 /* Determine function privilege level */
703 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
704 if (op_mode == QLC_DEV_DRV_DEFAULT)
705 priv_level = QLCNIC_MGMT_FUNC;
706 else
707 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
708
709 if (priv_level == QLCNIC_NON_PRIV_FUNC) {
710 adapter->ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
711 dev_info(&adapter->pdev->dev,
712 "HAL Version: %d Non Privileged function\n",
713 adapter->ahw->fw_hal_version);
714 adapter->nic_ops = &qlcnic_vf_ops;
715 } else
716 adapter->nic_ops = &qlcnic_ops;
717 }
718
719 #define QLCNIC_82XX_BAR0_LENGTH 0x00200000UL
720 #define QLCNIC_83XX_BAR0_LENGTH 0x4000
721 static void qlcnic_get_bar_length(u32 dev_id, ulong *bar)
722 {
723 switch (dev_id) {
724 case PCI_DEVICE_ID_QLOGIC_QLE824X:
725 *bar = QLCNIC_82XX_BAR0_LENGTH;
726 break;
727 case PCI_DEVICE_ID_QLOGIC_QLE834X:
728 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
729 *bar = QLCNIC_83XX_BAR0_LENGTH;
730 break;
731 default:
732 *bar = 0;
733 }
734 }
735
736 static int qlcnic_setup_pci_map(struct pci_dev *pdev,
737 struct qlcnic_hardware_context *ahw)
738 {
739 u32 offset;
740 void __iomem *mem_ptr0 = NULL;
741 unsigned long mem_len, pci_len0 = 0, bar0_len;
742
743 /* remap phys address */
744 mem_len = pci_resource_len(pdev, 0);
745
746 qlcnic_get_bar_length(pdev->device, &bar0_len);
747 if (mem_len >= bar0_len) {
748
749 mem_ptr0 = pci_ioremap_bar(pdev, 0);
750 if (mem_ptr0 == NULL) {
751 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
752 return -EIO;
753 }
754 pci_len0 = mem_len;
755 } else {
756 return -EIO;
757 }
758
759 dev_info(&pdev->dev, "%dKB memory map\n", (int)(mem_len >> 10));
760
761 ahw->pci_base0 = mem_ptr0;
762 ahw->pci_len0 = pci_len0;
763 offset = QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(ahw->pci_func));
764 qlcnic_get_ioaddr(ahw, offset);
765
766 return 0;
767 }
768
769 static void qlcnic_get_board_name(struct qlcnic_adapter *adapter, char *name)
770 {
771 struct pci_dev *pdev = adapter->pdev;
772 int i, found = 0;
773
774 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
775 if (qlcnic_boards[i].vendor == pdev->vendor &&
776 qlcnic_boards[i].device == pdev->device &&
777 qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
778 qlcnic_boards[i].sub_device == pdev->subsystem_device) {
779 sprintf(name, "%pM: %s" ,
780 adapter->mac_addr,
781 qlcnic_boards[i].short_name);
782 found = 1;
783 break;
784 }
785
786 }
787
788 if (!found)
789 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
790 }
791
792 static void
793 qlcnic_check_options(struct qlcnic_adapter *adapter)
794 {
795 int err;
796 u32 fw_major, fw_minor, fw_build, prev_fw_version;
797 struct pci_dev *pdev = adapter->pdev;
798 struct qlcnic_hardware_context *ahw = adapter->ahw;
799 struct qlcnic_fw_dump *fw_dump = &ahw->fw_dump;
800
801 prev_fw_version = adapter->fw_version;
802
803 fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
804 fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
805 fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
806
807 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
808
809 err = qlcnic_get_board_info(adapter);
810 if (err) {
811 dev_err(&pdev->dev, "Error getting board config info.\n");
812 return;
813 }
814 if (ahw->op_mode != QLCNIC_NON_PRIV_FUNC) {
815 if (fw_dump->tmpl_hdr == NULL ||
816 adapter->fw_version > prev_fw_version) {
817 if (fw_dump->tmpl_hdr)
818 vfree(fw_dump->tmpl_hdr);
819 if (!qlcnic_fw_cmd_get_minidump_temp(adapter))
820 dev_info(&pdev->dev,
821 "Supports FW dump capability\n");
822 }
823 }
824
825 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d\n",
826 QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
827
828 if (adapter->ahw->port_type == QLCNIC_XGBE) {
829 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
830 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_VF;
831 adapter->max_rxd = MAX_RCV_DESCRIPTORS_VF;
832 } else {
833 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
834 adapter->max_rxd = MAX_RCV_DESCRIPTORS_10G;
835 }
836
837 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
838 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
839
840 } else if (adapter->ahw->port_type == QLCNIC_GBE) {
841 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
842 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
843 adapter->max_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
844 adapter->max_rxd = MAX_RCV_DESCRIPTORS_1G;
845 }
846
847 adapter->ahw->msix_supported = !!qlcnic_use_msi_x;
848
849 adapter->num_txd = MAX_CMD_DESCRIPTORS;
850
851 adapter->max_rds_rings = MAX_RDS_RINGS;
852 }
853
854 static int
855 qlcnic_initialize_nic(struct qlcnic_adapter *adapter)
856 {
857 int err;
858 struct qlcnic_info nic_info;
859
860 memset(&nic_info, 0, sizeof(struct qlcnic_info));
861 err = qlcnic_get_nic_info(adapter, &nic_info, adapter->ahw->pci_func);
862 if (err)
863 return err;
864
865 adapter->ahw->physical_port = (u8)nic_info.phys_port;
866 adapter->ahw->switch_mode = nic_info.switch_mode;
867 adapter->ahw->max_tx_ques = nic_info.max_tx_ques;
868 adapter->ahw->max_rx_ques = nic_info.max_rx_ques;
869 adapter->ahw->capabilities = nic_info.capabilities;
870
871 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
872 u32 temp;
873 temp = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
874 adapter->ahw->capabilities2 = temp;
875 }
876 adapter->ahw->max_mac_filters = nic_info.max_mac_filters;
877 adapter->ahw->max_mtu = nic_info.max_mtu;
878
879 /* Disable NPAR for 83XX */
880 if (qlcnic_83xx_check(adapter))
881 return err;
882
883 if (adapter->ahw->capabilities & BIT_6)
884 adapter->flags |= QLCNIC_ESWITCH_ENABLED;
885 else
886 adapter->flags &= ~QLCNIC_ESWITCH_ENABLED;
887
888 return err;
889 }
890
891 void qlcnic_set_vlan_config(struct qlcnic_adapter *adapter,
892 struct qlcnic_esw_func_cfg *esw_cfg)
893 {
894 if (esw_cfg->discard_tagged)
895 adapter->flags &= ~QLCNIC_TAGGING_ENABLED;
896 else
897 adapter->flags |= QLCNIC_TAGGING_ENABLED;
898
899 if (esw_cfg->vlan_id)
900 adapter->pvid = esw_cfg->vlan_id;
901 else
902 adapter->pvid = 0;
903 }
904
905 static int
906 qlcnic_vlan_rx_add(struct net_device *netdev, u16 vid)
907 {
908 struct qlcnic_adapter *adapter = netdev_priv(netdev);
909 set_bit(vid, adapter->vlans);
910 return 0;
911 }
912
913 static int
914 qlcnic_vlan_rx_del(struct net_device *netdev, u16 vid)
915 {
916 struct qlcnic_adapter *adapter = netdev_priv(netdev);
917
918 qlcnic_restore_indev_addr(netdev, NETDEV_DOWN);
919 clear_bit(vid, adapter->vlans);
920 return 0;
921 }
922
923 void qlcnic_set_eswitch_port_features(struct qlcnic_adapter *adapter,
924 struct qlcnic_esw_func_cfg *esw_cfg)
925 {
926 adapter->flags &= ~(QLCNIC_MACSPOOF | QLCNIC_MAC_OVERRIDE_DISABLED |
927 QLCNIC_PROMISC_DISABLED);
928
929 if (esw_cfg->mac_anti_spoof)
930 adapter->flags |= QLCNIC_MACSPOOF;
931
932 if (!esw_cfg->mac_override)
933 adapter->flags |= QLCNIC_MAC_OVERRIDE_DISABLED;
934
935 if (!esw_cfg->promisc_mode)
936 adapter->flags |= QLCNIC_PROMISC_DISABLED;
937
938 qlcnic_set_netdev_features(adapter, esw_cfg);
939 }
940
941 int qlcnic_set_eswitch_port_config(struct qlcnic_adapter *adapter)
942 {
943 struct qlcnic_esw_func_cfg esw_cfg;
944
945 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED))
946 return 0;
947
948 esw_cfg.pci_func = adapter->ahw->pci_func;
949 if (qlcnic_get_eswitch_port_config(adapter, &esw_cfg))
950 return -EIO;
951 qlcnic_set_vlan_config(adapter, &esw_cfg);
952 qlcnic_set_eswitch_port_features(adapter, &esw_cfg);
953
954 return 0;
955 }
956
957 static void
958 qlcnic_set_netdev_features(struct qlcnic_adapter *adapter,
959 struct qlcnic_esw_func_cfg *esw_cfg)
960 {
961 struct net_device *netdev = adapter->netdev;
962 unsigned long features, vlan_features;
963
964 if (qlcnic_83xx_check(adapter))
965 return;
966
967 features = (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
968 NETIF_F_IPV6_CSUM | NETIF_F_GRO);
969 vlan_features = (NETIF_F_SG | NETIF_F_IP_CSUM |
970 NETIF_F_IPV6_CSUM);
971
972 if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
973 features |= (NETIF_F_TSO | NETIF_F_TSO6);
974 vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
975 }
976
977 if (netdev->features & NETIF_F_LRO)
978 features |= NETIF_F_LRO;
979
980 if (esw_cfg->offload_flags & BIT_0) {
981 netdev->features |= features;
982 adapter->rx_csum = 1;
983 if (!(esw_cfg->offload_flags & BIT_1)) {
984 netdev->features &= ~NETIF_F_TSO;
985 features &= ~NETIF_F_TSO;
986 }
987 if (!(esw_cfg->offload_flags & BIT_2)) {
988 netdev->features &= ~NETIF_F_TSO6;
989 features &= ~NETIF_F_TSO6;
990 }
991 } else {
992 netdev->features &= ~features;
993 features &= ~features;
994 adapter->rx_csum = 0;
995 }
996
997 netdev->vlan_features = (features & vlan_features);
998 }
999
1000 static int
1001 qlcnic_check_eswitch_mode(struct qlcnic_adapter *adapter)
1002 {
1003 u32 op_mode, priv_level;
1004 int err = 0;
1005
1006 err = qlcnic_initialize_nic(adapter);
1007 if (err)
1008 return err;
1009
1010 if (adapter->flags & QLCNIC_ADAPTER_INITIALIZED)
1011 return 0;
1012
1013 op_mode = QLC_SHARED_REG_RD32(adapter, QLCNIC_DRV_OP_MODE);
1014 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1015
1016 if (op_mode == QLC_DEV_DRV_DEFAULT)
1017 priv_level = QLCNIC_MGMT_FUNC;
1018 else
1019 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw->pci_func);
1020
1021 if (adapter->flags & QLCNIC_ESWITCH_ENABLED) {
1022 if (priv_level == QLCNIC_MGMT_FUNC) {
1023 adapter->ahw->op_mode = QLCNIC_MGMT_FUNC;
1024 err = qlcnic_init_pci_info(adapter);
1025 if (err)
1026 return err;
1027 /* Set privilege level for other functions */
1028 qlcnic_set_function_modes(adapter);
1029 dev_info(&adapter->pdev->dev,
1030 "HAL Version: %d, Management function\n",
1031 adapter->ahw->fw_hal_version);
1032 } else if (priv_level == QLCNIC_PRIV_FUNC) {
1033 adapter->ahw->op_mode = QLCNIC_PRIV_FUNC;
1034 dev_info(&adapter->pdev->dev,
1035 "HAL Version: %d, Privileged function\n",
1036 adapter->ahw->fw_hal_version);
1037 }
1038 }
1039
1040 adapter->flags |= QLCNIC_ADAPTER_INITIALIZED;
1041
1042 return err;
1043 }
1044
1045 int qlcnic_set_default_offload_settings(struct qlcnic_adapter *adapter)
1046 {
1047 struct qlcnic_esw_func_cfg esw_cfg;
1048 struct qlcnic_npar_info *npar;
1049 u8 i;
1050
1051 if (adapter->need_fw_reset)
1052 return 0;
1053
1054 for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1055 memset(&esw_cfg, 0, sizeof(struct qlcnic_esw_func_cfg));
1056 esw_cfg.pci_func = adapter->npars[i].pci_func;
1057 esw_cfg.mac_override = BIT_0;
1058 esw_cfg.promisc_mode = BIT_0;
1059 if (qlcnic_82xx_check(adapter)) {
1060 esw_cfg.offload_flags = BIT_0;
1061 if (QLCNIC_IS_TSO_CAPABLE(adapter))
1062 esw_cfg.offload_flags |= (BIT_1 | BIT_2);
1063 }
1064 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1065 return -EIO;
1066 npar = &adapter->npars[i];
1067 npar->pvid = esw_cfg.vlan_id;
1068 npar->mac_override = esw_cfg.mac_override;
1069 npar->mac_anti_spoof = esw_cfg.mac_anti_spoof;
1070 npar->discard_tagged = esw_cfg.discard_tagged;
1071 npar->promisc_mode = esw_cfg.promisc_mode;
1072 npar->offload_flags = esw_cfg.offload_flags;
1073 }
1074
1075 return 0;
1076 }
1077
1078
1079 static int
1080 qlcnic_reset_eswitch_config(struct qlcnic_adapter *adapter,
1081 struct qlcnic_npar_info *npar, int pci_func)
1082 {
1083 struct qlcnic_esw_func_cfg esw_cfg;
1084 esw_cfg.op_mode = QLCNIC_PORT_DEFAULTS;
1085 esw_cfg.pci_func = pci_func;
1086 esw_cfg.vlan_id = npar->pvid;
1087 esw_cfg.mac_override = npar->mac_override;
1088 esw_cfg.discard_tagged = npar->discard_tagged;
1089 esw_cfg.mac_anti_spoof = npar->mac_anti_spoof;
1090 esw_cfg.offload_flags = npar->offload_flags;
1091 esw_cfg.promisc_mode = npar->promisc_mode;
1092 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1093 return -EIO;
1094
1095 esw_cfg.op_mode = QLCNIC_ADD_VLAN;
1096 if (qlcnic_config_switch_port(adapter, &esw_cfg))
1097 return -EIO;
1098
1099 return 0;
1100 }
1101
1102 int qlcnic_reset_npar_config(struct qlcnic_adapter *adapter)
1103 {
1104 int i, err;
1105 struct qlcnic_npar_info *npar;
1106 struct qlcnic_info nic_info;
1107 u8 pci_func;
1108
1109 if (qlcnic_82xx_check(adapter))
1110 if (!adapter->need_fw_reset)
1111 return 0;
1112
1113 /* Set the NPAR config data after FW reset */
1114 for (i = 0; i < adapter->ahw->act_pci_func; i++) {
1115 npar = &adapter->npars[i];
1116 pci_func = npar->pci_func;
1117 memset(&nic_info, 0, sizeof(struct qlcnic_info));
1118 err = qlcnic_get_nic_info(adapter, &nic_info, pci_func);
1119 if (err)
1120 return err;
1121 nic_info.min_tx_bw = npar->min_bw;
1122 nic_info.max_tx_bw = npar->max_bw;
1123 err = qlcnic_set_nic_info(adapter, &nic_info);
1124 if (err)
1125 return err;
1126
1127 if (npar->enable_pm) {
1128 err = qlcnic_config_port_mirroring(adapter,
1129 npar->dest_npar, 1,
1130 pci_func);
1131 if (err)
1132 return err;
1133 }
1134 err = qlcnic_reset_eswitch_config(adapter, npar, pci_func);
1135 if (err)
1136 return err;
1137 }
1138 return 0;
1139 }
1140
1141 static int qlcnic_check_npar_opertional(struct qlcnic_adapter *adapter)
1142 {
1143 u8 npar_opt_timeo = QLCNIC_DEV_NPAR_OPER_TIMEO;
1144 u32 npar_state;
1145
1146 if (adapter->ahw->op_mode == QLCNIC_MGMT_FUNC)
1147 return 0;
1148
1149 npar_state = QLC_SHARED_REG_RD32(adapter,
1150 QLCNIC_CRB_DEV_NPAR_STATE);
1151 while (npar_state != QLCNIC_DEV_NPAR_OPER && --npar_opt_timeo) {
1152 msleep(1000);
1153 npar_state = QLC_SHARED_REG_RD32(adapter,
1154 QLCNIC_CRB_DEV_NPAR_STATE);
1155 }
1156 if (!npar_opt_timeo) {
1157 dev_err(&adapter->pdev->dev,
1158 "Waiting for NPAR state to operational timeout\n");
1159 return -EIO;
1160 }
1161 return 0;
1162 }
1163
1164 static int
1165 qlcnic_set_mgmt_operations(struct qlcnic_adapter *adapter)
1166 {
1167 int err;
1168
1169 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED) ||
1170 adapter->ahw->op_mode != QLCNIC_MGMT_FUNC)
1171 return 0;
1172
1173 err = qlcnic_set_default_offload_settings(adapter);
1174 if (err)
1175 return err;
1176
1177 err = qlcnic_reset_npar_config(adapter);
1178 if (err)
1179 return err;
1180
1181 qlcnic_dev_set_npar_ready(adapter);
1182
1183 return err;
1184 }
1185
1186 int qlcnic_82xx_start_firmware(struct qlcnic_adapter *adapter)
1187 {
1188 int err;
1189
1190 err = qlcnic_can_start_firmware(adapter);
1191 if (err < 0)
1192 return err;
1193 else if (!err)
1194 goto check_fw_status;
1195
1196 if (qlcnic_load_fw_file)
1197 qlcnic_request_firmware(adapter);
1198 else {
1199 err = qlcnic_check_flash_fw_ver(adapter);
1200 if (err)
1201 goto err_out;
1202
1203 adapter->ahw->fw_type = QLCNIC_FLASH_ROMIMAGE;
1204 }
1205
1206 err = qlcnic_need_fw_reset(adapter);
1207 if (err == 0)
1208 goto check_fw_status;
1209
1210 err = qlcnic_pinit_from_rom(adapter);
1211 if (err)
1212 goto err_out;
1213
1214 err = qlcnic_load_firmware(adapter);
1215 if (err)
1216 goto err_out;
1217
1218 qlcnic_release_firmware(adapter);
1219 QLCWR32(adapter, CRB_DRIVER_VERSION, QLCNIC_DRIVER_VERSION);
1220
1221 check_fw_status:
1222 err = qlcnic_check_fw_status(adapter);
1223 if (err)
1224 goto err_out;
1225
1226 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
1227 qlcnic_idc_debug_info(adapter, 1);
1228 err = qlcnic_check_eswitch_mode(adapter);
1229 if (err) {
1230 dev_err(&adapter->pdev->dev,
1231 "Memory allocation failed for eswitch\n");
1232 goto err_out;
1233 }
1234 err = qlcnic_set_mgmt_operations(adapter);
1235 if (err)
1236 goto err_out;
1237
1238 qlcnic_check_options(adapter);
1239 adapter->need_fw_reset = 0;
1240
1241 qlcnic_release_firmware(adapter);
1242 return 0;
1243
1244 err_out:
1245 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
1246 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
1247
1248 qlcnic_release_firmware(adapter);
1249 return err;
1250 }
1251
1252 static int
1253 qlcnic_request_irq(struct qlcnic_adapter *adapter)
1254 {
1255 irq_handler_t handler;
1256 struct qlcnic_host_sds_ring *sds_ring;
1257 struct qlcnic_host_tx_ring *tx_ring;
1258 int err, ring;
1259
1260 unsigned long flags = 0;
1261 struct net_device *netdev = adapter->netdev;
1262 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1263
1264 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1265 if (qlcnic_82xx_check(adapter))
1266 handler = qlcnic_tmp_intr;
1267 if (!QLCNIC_IS_MSI_FAMILY(adapter))
1268 flags |= IRQF_SHARED;
1269
1270 } else {
1271 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1272 handler = qlcnic_msix_intr;
1273 else if (adapter->flags & QLCNIC_MSI_ENABLED)
1274 handler = qlcnic_msi_intr;
1275 else {
1276 flags |= IRQF_SHARED;
1277 if (qlcnic_82xx_check(adapter))
1278 handler = qlcnic_intr;
1279 else
1280 handler = qlcnic_83xx_intr;
1281 }
1282 }
1283 adapter->irq = netdev->irq;
1284
1285 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1286 if (qlcnic_82xx_check(adapter) ||
1287 (qlcnic_83xx_check(adapter) &&
1288 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1289 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1290 sds_ring = &recv_ctx->sds_rings[ring];
1291 snprintf(sds_ring->name, sizeof(int) + IFNAMSIZ,
1292 "%s[%d]", netdev->name, ring);
1293 err = request_irq(sds_ring->irq, handler, flags,
1294 sds_ring->name, sds_ring);
1295 if (err)
1296 return err;
1297 }
1298 }
1299 if (qlcnic_83xx_check(adapter) &&
1300 (adapter->flags & QLCNIC_MSIX_ENABLED) &&
1301 !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
1302 handler = qlcnic_msix_tx_intr;
1303 for (ring = 0; ring < adapter->max_drv_tx_rings;
1304 ring++) {
1305 tx_ring = &adapter->tx_ring[ring];
1306 snprintf(tx_ring->name, sizeof(int) + IFNAMSIZ,
1307 "%s[%d]", netdev->name,
1308 adapter->max_sds_rings + ring);
1309 err = request_irq(tx_ring->irq, handler, flags,
1310 tx_ring->name, tx_ring);
1311 if (err)
1312 return err;
1313 }
1314 }
1315 }
1316 return 0;
1317 }
1318
1319 static void
1320 qlcnic_free_irq(struct qlcnic_adapter *adapter)
1321 {
1322 int ring;
1323 struct qlcnic_host_sds_ring *sds_ring;
1324 struct qlcnic_host_tx_ring *tx_ring;
1325
1326 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1327
1328 if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST) {
1329 if (qlcnic_82xx_check(adapter) ||
1330 (qlcnic_83xx_check(adapter) &&
1331 (adapter->flags & QLCNIC_MSIX_ENABLED))) {
1332 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1333 sds_ring = &recv_ctx->sds_rings[ring];
1334 free_irq(sds_ring->irq, sds_ring);
1335 }
1336 }
1337 if (qlcnic_83xx_check(adapter) &&
1338 !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
1339 for (ring = 0; ring < adapter->max_drv_tx_rings;
1340 ring++) {
1341 tx_ring = &adapter->tx_ring[ring];
1342 if (tx_ring->irq)
1343 free_irq(tx_ring->irq, tx_ring);
1344 }
1345 }
1346 }
1347 }
1348
1349 static void qlcnic_get_lro_mss_capability(struct qlcnic_adapter *adapter)
1350 {
1351 u32 capab = 0;
1352
1353 if (qlcnic_82xx_check(adapter)) {
1354 if (adapter->ahw->capabilities2 &
1355 QLCNIC_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1356 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1357 } else {
1358 capab = adapter->ahw->capabilities;
1359 if (QLC_83XX_GET_FW_LRO_MSS_CAPABILITY(capab))
1360 adapter->flags |= QLCNIC_FW_LRO_MSS_CAP;
1361 }
1362 }
1363
1364 int __qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1365 {
1366 int ring;
1367 struct qlcnic_host_rds_ring *rds_ring;
1368
1369 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1370 return -EIO;
1371
1372 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
1373 return 0;
1374 if (qlcnic_set_eswitch_port_config(adapter))
1375 return -EIO;
1376 qlcnic_get_lro_mss_capability(adapter);
1377
1378 if (qlcnic_fw_create_ctx(adapter))
1379 return -EIO;
1380
1381 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1382 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1383 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1384 }
1385
1386 qlcnic_set_multi(netdev);
1387 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
1388
1389 adapter->ahw->linkup = 0;
1390
1391 if (adapter->max_sds_rings > 1)
1392 qlcnic_config_rss(adapter, 1);
1393
1394 qlcnic_config_intr_coalesce(adapter);
1395
1396 if (netdev->features & NETIF_F_LRO)
1397 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
1398
1399 qlcnic_napi_enable(adapter);
1400
1401 qlcnic_linkevent_request(adapter, 1);
1402
1403 adapter->ahw->reset_context = 0;
1404 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1405 return 0;
1406 }
1407
1408 int qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
1409 {
1410 int err = 0;
1411
1412 rtnl_lock();
1413 if (netif_running(netdev))
1414 err = __qlcnic_up(adapter, netdev);
1415 rtnl_unlock();
1416
1417 return err;
1418 }
1419
1420 void __qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1421 {
1422 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1423 return;
1424
1425 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
1426 return;
1427
1428 smp_mb();
1429 spin_lock(&adapter->tx_clean_lock);
1430 netif_carrier_off(netdev);
1431 adapter->ahw->linkup = 0;
1432 netif_tx_disable(netdev);
1433
1434 qlcnic_free_mac_list(adapter);
1435
1436 if (adapter->fhash.fnum)
1437 qlcnic_delete_lb_filters(adapter);
1438
1439 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
1440
1441 qlcnic_napi_disable(adapter);
1442
1443 qlcnic_fw_destroy_ctx(adapter);
1444 adapter->flags &= ~QLCNIC_FW_LRO_MSS_CAP;
1445
1446 qlcnic_reset_rx_buffers_list(adapter);
1447 qlcnic_release_tx_buffers(adapter);
1448 spin_unlock(&adapter->tx_clean_lock);
1449 }
1450
1451 /* Usage: During suspend and firmware recovery module */
1452
1453 void qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
1454 {
1455 rtnl_lock();
1456 if (netif_running(netdev))
1457 __qlcnic_down(adapter, netdev);
1458 rtnl_unlock();
1459
1460 }
1461
1462 int
1463 qlcnic_attach(struct qlcnic_adapter *adapter)
1464 {
1465 struct net_device *netdev = adapter->netdev;
1466 struct pci_dev *pdev = adapter->pdev;
1467 int err;
1468
1469 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
1470 return 0;
1471
1472 err = qlcnic_napi_add(adapter, netdev);
1473 if (err)
1474 return err;
1475
1476 err = qlcnic_alloc_sw_resources(adapter);
1477 if (err) {
1478 dev_err(&pdev->dev, "Error in setting sw resources\n");
1479 goto err_out_napi_del;
1480 }
1481
1482 err = qlcnic_alloc_hw_resources(adapter);
1483 if (err) {
1484 dev_err(&pdev->dev, "Error in setting hw resources\n");
1485 goto err_out_free_sw;
1486 }
1487
1488 err = qlcnic_request_irq(adapter);
1489 if (err) {
1490 dev_err(&pdev->dev, "failed to setup interrupt\n");
1491 goto err_out_free_hw;
1492 }
1493
1494 qlcnic_create_sysfs_entries(adapter);
1495
1496 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1497 return 0;
1498
1499 err_out_free_hw:
1500 qlcnic_free_hw_resources(adapter);
1501 err_out_free_sw:
1502 qlcnic_free_sw_resources(adapter);
1503 err_out_napi_del:
1504 qlcnic_napi_del(adapter);
1505 return err;
1506 }
1507
1508 void qlcnic_detach(struct qlcnic_adapter *adapter)
1509 {
1510 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1511 return;
1512
1513 qlcnic_remove_sysfs_entries(adapter);
1514
1515 qlcnic_free_hw_resources(adapter);
1516 qlcnic_release_rx_buffers(adapter);
1517 qlcnic_free_irq(adapter);
1518 qlcnic_napi_del(adapter);
1519 qlcnic_free_sw_resources(adapter);
1520
1521 adapter->is_up = 0;
1522 }
1523
1524 void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1525 {
1526 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1527 struct qlcnic_host_sds_ring *sds_ring;
1528 int ring;
1529
1530 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1531 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1532 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1533 sds_ring = &adapter->recv_ctx->sds_rings[ring];
1534 qlcnic_disable_int(sds_ring);
1535 }
1536 }
1537
1538 qlcnic_fw_destroy_ctx(adapter);
1539
1540 qlcnic_detach(adapter);
1541
1542 adapter->ahw->diag_test = 0;
1543 adapter->max_sds_rings = max_sds_rings;
1544
1545 if (qlcnic_attach(adapter))
1546 goto out;
1547
1548 if (netif_running(netdev))
1549 __qlcnic_up(adapter, netdev);
1550 out:
1551 netif_device_attach(netdev);
1552 }
1553
1554 static int qlcnic_alloc_adapter_resources(struct qlcnic_adapter *adapter)
1555 {
1556 int err = 0;
1557 adapter->recv_ctx = kzalloc(sizeof(struct qlcnic_recv_context),
1558 GFP_KERNEL);
1559 if (!adapter->recv_ctx) {
1560 err = -ENOMEM;
1561 goto err_out;
1562 }
1563 /* Initialize interrupt coalesce parameters */
1564 adapter->ahw->coal.flag = QLCNIC_INTR_DEFAULT;
1565 adapter->ahw->coal.rx_time_us = QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
1566 adapter->ahw->coal.rx_packets = QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
1567 /* clear stats */
1568 memset(&adapter->stats, 0, sizeof(adapter->stats));
1569 err_out:
1570 return err;
1571 }
1572
1573 static void qlcnic_free_adapter_resources(struct qlcnic_adapter *adapter)
1574 {
1575 kfree(adapter->recv_ctx);
1576 adapter->recv_ctx = NULL;
1577
1578 if (adapter->ahw->fw_dump.tmpl_hdr) {
1579 vfree(adapter->ahw->fw_dump.tmpl_hdr);
1580 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1581 }
1582
1583 kfree(adapter->ahw->reset.buff);
1584 adapter->ahw->fw_dump.tmpl_hdr = NULL;
1585 }
1586
1587 int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1588 {
1589 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1590 struct qlcnic_host_sds_ring *sds_ring;
1591 struct qlcnic_host_rds_ring *rds_ring;
1592 int ring;
1593 int ret;
1594
1595 netif_device_detach(netdev);
1596
1597 if (netif_running(netdev))
1598 __qlcnic_down(adapter, netdev);
1599
1600 qlcnic_detach(adapter);
1601
1602 adapter->max_sds_rings = 1;
1603 adapter->ahw->diag_test = test;
1604 adapter->ahw->linkup = 0;
1605
1606 ret = qlcnic_attach(adapter);
1607 if (ret) {
1608 netif_device_attach(netdev);
1609 return ret;
1610 }
1611
1612 ret = qlcnic_fw_create_ctx(adapter);
1613 if (ret) {
1614 qlcnic_detach(adapter);
1615 netif_device_attach(netdev);
1616 return ret;
1617 }
1618
1619 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1620 rds_ring = &adapter->recv_ctx->rds_rings[ring];
1621 qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1622 }
1623
1624 if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1625 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1626 sds_ring = &adapter->recv_ctx->sds_rings[ring];
1627 qlcnic_enable_int(sds_ring);
1628 }
1629 }
1630
1631 if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1632 adapter->ahw->loopback_state = 0;
1633 qlcnic_linkevent_request(adapter, 1);
1634 }
1635
1636 set_bit(__QLCNIC_DEV_UP, &adapter->state);
1637
1638 return 0;
1639 }
1640
1641 /* Reset context in hardware only */
1642 static int
1643 qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1644 {
1645 struct net_device *netdev = adapter->netdev;
1646
1647 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1648 return -EBUSY;
1649
1650 netif_device_detach(netdev);
1651
1652 qlcnic_down(adapter, netdev);
1653
1654 qlcnic_up(adapter, netdev);
1655
1656 netif_device_attach(netdev);
1657
1658 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1659 dev_err(&adapter->pdev->dev, "%s:\n", __func__);
1660 return 0;
1661 }
1662
1663 int
1664 qlcnic_reset_context(struct qlcnic_adapter *adapter)
1665 {
1666 int err = 0;
1667 struct net_device *netdev = adapter->netdev;
1668
1669 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1670 return -EBUSY;
1671
1672 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1673
1674 netif_device_detach(netdev);
1675
1676 if (netif_running(netdev))
1677 __qlcnic_down(adapter, netdev);
1678
1679 qlcnic_detach(adapter);
1680
1681 if (netif_running(netdev)) {
1682 err = qlcnic_attach(adapter);
1683 if (!err) {
1684 __qlcnic_up(adapter, netdev);
1685 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
1686 }
1687 }
1688
1689 netif_device_attach(netdev);
1690 }
1691
1692 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1693 return err;
1694 }
1695
1696 int
1697 qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev,
1698 int pci_using_dac)
1699 {
1700 int err;
1701 struct pci_dev *pdev = adapter->pdev;
1702
1703 adapter->rx_csum = 1;
1704 adapter->ahw->mc_enabled = 0;
1705 adapter->ahw->max_mc_count = QLCNIC_MAX_MC_COUNT;
1706
1707 netdev->netdev_ops = &qlcnic_netdev_ops;
1708 netdev->watchdog_timeo = QLCNIC_WATCHDOG_TIMEOUTVALUE * HZ;
1709
1710 qlcnic_change_mtu(netdev, netdev->mtu);
1711
1712 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1713
1714 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
1715 NETIF_F_IPV6_CSUM | NETIF_F_GRO |
1716 NETIF_F_HW_VLAN_RX);
1717 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1718 NETIF_F_IPV6_CSUM);
1719
1720 if (QLCNIC_IS_TSO_CAPABLE(adapter)) {
1721 netdev->features |= (NETIF_F_TSO | NETIF_F_TSO6);
1722 netdev->vlan_features |= (NETIF_F_TSO | NETIF_F_TSO6);
1723 }
1724
1725 if (pci_using_dac) {
1726 netdev->features |= NETIF_F_HIGHDMA;
1727 netdev->vlan_features |= NETIF_F_HIGHDMA;
1728 }
1729
1730 if (qlcnic_vlan_tx_check(adapter))
1731 netdev->features |= (NETIF_F_HW_VLAN_TX);
1732
1733 if (adapter->ahw->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1734 netdev->features |= NETIF_F_LRO;
1735
1736 netdev->hw_features = netdev->features;
1737 netdev->irq = adapter->msix_entries[0].vector;
1738
1739 err = register_netdev(netdev);
1740 if (err) {
1741 dev_err(&pdev->dev, "failed to register net device\n");
1742 return err;
1743 }
1744
1745 return 0;
1746 }
1747
1748 static int qlcnic_set_dma_mask(struct pci_dev *pdev, int *pci_using_dac)
1749 {
1750 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1751 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1752 *pci_using_dac = 1;
1753 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1754 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1755 *pci_using_dac = 0;
1756 else {
1757 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1758 return -EIO;
1759 }
1760
1761 return 0;
1762 }
1763
1764 void qlcnic_free_tx_rings(struct qlcnic_adapter *adapter)
1765 {
1766 int ring;
1767 struct qlcnic_host_tx_ring *tx_ring;
1768
1769 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1770 tx_ring = &adapter->tx_ring[ring];
1771 if (tx_ring && tx_ring->cmd_buf_arr != NULL) {
1772 vfree(tx_ring->cmd_buf_arr);
1773 tx_ring->cmd_buf_arr = NULL;
1774 }
1775 }
1776 if (adapter->tx_ring != NULL)
1777 kfree(adapter->tx_ring);
1778 }
1779
1780 int qlcnic_alloc_tx_rings(struct qlcnic_adapter *adapter,
1781 struct net_device *netdev)
1782 {
1783 int ring, vector, index;
1784 struct qlcnic_host_tx_ring *tx_ring;
1785 struct qlcnic_cmd_buffer *cmd_buf_arr;
1786
1787 tx_ring = kcalloc(adapter->max_drv_tx_rings,
1788 sizeof(struct qlcnic_host_tx_ring), GFP_KERNEL);
1789 if (tx_ring == NULL)
1790 return -ENOMEM;
1791
1792 adapter->tx_ring = tx_ring;
1793
1794 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1795 tx_ring = &adapter->tx_ring[ring];
1796 tx_ring->num_desc = adapter->num_txd;
1797 tx_ring->txq = netdev_get_tx_queue(netdev, ring);
1798 cmd_buf_arr = vzalloc(TX_BUFF_RINGSIZE(tx_ring));
1799 if (cmd_buf_arr == NULL) {
1800 qlcnic_free_tx_rings(adapter);
1801 return -ENOMEM;
1802 }
1803 memset(cmd_buf_arr, 0, TX_BUFF_RINGSIZE(tx_ring));
1804 tx_ring->cmd_buf_arr = cmd_buf_arr;
1805 }
1806
1807 if (qlcnic_83xx_check(adapter)) {
1808 for (ring = 0; ring < adapter->max_drv_tx_rings; ring++) {
1809 tx_ring = &adapter->tx_ring[ring];
1810 tx_ring->adapter = adapter;
1811 if (adapter->flags & QLCNIC_MSIX_ENABLED) {
1812 index = adapter->max_sds_rings + ring;
1813 vector = adapter->msix_entries[index].vector;
1814 tx_ring->irq = vector;
1815 }
1816 }
1817 }
1818 return 0;
1819 }
1820
1821 static int
1822 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1823 {
1824 struct net_device *netdev = NULL;
1825 struct qlcnic_adapter *adapter = NULL;
1826 struct qlcnic_hardware_context *ahw;
1827 int err, pci_using_dac = -1;
1828 u32 capab2;
1829 char board_name[QLCNIC_MAX_BOARD_NAME_LEN + 19]; /* MAC + ": " + name */
1830
1831 if (pdev->is_virtfn)
1832 return -ENODEV;
1833
1834 err = pci_enable_device(pdev);
1835 if (err)
1836 return err;
1837
1838 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1839 err = -ENODEV;
1840 goto err_out_disable_pdev;
1841 }
1842
1843 err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1844 if (err)
1845 goto err_out_disable_pdev;
1846
1847 err = pci_request_regions(pdev, qlcnic_driver_name);
1848 if (err)
1849 goto err_out_disable_pdev;
1850
1851 pci_set_master(pdev);
1852 pci_enable_pcie_error_reporting(pdev);
1853
1854 ahw = kzalloc(sizeof(struct qlcnic_hardware_context), GFP_KERNEL);
1855 if (!ahw)
1856 goto err_out_free_res;
1857
1858 switch (ent->device) {
1859 case PCI_DEVICE_ID_QLOGIC_QLE824X:
1860 ahw->hw_ops = &qlcnic_hw_ops;
1861 ahw->reg_tbl = (u32 *) qlcnic_reg_tbl;
1862 break;
1863 case PCI_DEVICE_ID_QLOGIC_QLE834X:
1864 qlcnic_83xx_register_map(ahw);
1865 break;
1866 case PCI_DEVICE_ID_QLOGIC_VF_QLE834X:
1867 qlcnic_sriov_vf_register_map(ahw);
1868 break;
1869 default:
1870 goto err_out_free_hw_res;
1871 }
1872
1873 err = qlcnic_setup_pci_map(pdev, ahw);
1874 if (err)
1875 goto err_out_free_hw_res;
1876
1877 netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1878 if (!netdev) {
1879 err = -ENOMEM;
1880 goto err_out_iounmap;
1881 }
1882
1883 SET_NETDEV_DEV(netdev, &pdev->dev);
1884
1885 adapter = netdev_priv(netdev);
1886 adapter->netdev = netdev;
1887 adapter->pdev = pdev;
1888 adapter->ahw = ahw;
1889
1890 adapter->qlcnic_wq = create_singlethread_workqueue("qlcnic");
1891 if (adapter->qlcnic_wq == NULL) {
1892 dev_err(&pdev->dev, "Failed to create workqueue\n");
1893 goto err_out_free_netdev;
1894 }
1895
1896 err = qlcnic_alloc_adapter_resources(adapter);
1897 if (err)
1898 goto err_out_free_netdev;
1899
1900 adapter->dev_rst_time = jiffies;
1901 adapter->ahw->revision_id = pdev->revision;
1902 if (qlcnic_mac_learn == FDB_MAC_LEARN)
1903 adapter->fdb_mac_learn = true;
1904 else if (qlcnic_mac_learn == DRV_MAC_LEARN)
1905 adapter->drv_mac_learn = true;
1906 adapter->max_drv_tx_rings = 1;
1907
1908 rwlock_init(&adapter->ahw->crb_lock);
1909 mutex_init(&adapter->ahw->mem_lock);
1910
1911 spin_lock_init(&adapter->tx_clean_lock);
1912 INIT_LIST_HEAD(&adapter->mac_list);
1913
1914 if (qlcnic_82xx_check(adapter)) {
1915 qlcnic_check_vf(adapter, ent);
1916 adapter->portnum = adapter->ahw->pci_func;
1917 err = qlcnic_start_firmware(adapter);
1918 if (err) {
1919 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
1920 goto err_out_free_hw;
1921 }
1922
1923 err = qlcnic_setup_idc_param(adapter);
1924 if (err)
1925 goto err_out_free_hw;
1926
1927 adapter->flags |= QLCNIC_NEED_FLR;
1928 } else if (qlcnic_83xx_check(adapter)) {
1929 qlcnic_83xx_check_vf(adapter, ent);
1930 adapter->portnum = adapter->ahw->pci_func;
1931 err = qlcnic_83xx_init(adapter, pci_using_dac);
1932 if (err) {
1933 dev_err(&pdev->dev, "%s: failed\n", __func__);
1934 goto err_out_free_hw;
1935 }
1936 if (qlcnic_sriov_vf_check(adapter))
1937 return 0;
1938 } else {
1939 dev_err(&pdev->dev,
1940 "%s: failed. Please Reboot\n", __func__);
1941 goto err_out_free_hw;
1942 }
1943
1944 if (qlcnic_read_mac_addr(adapter))
1945 dev_warn(&pdev->dev, "failed to read mac addr\n");
1946
1947 if (adapter->portnum == 0) {
1948 qlcnic_get_board_name(adapter, board_name);
1949
1950 pr_info("%s: %s Board Chip rev 0x%x\n",
1951 module_name(THIS_MODULE),
1952 board_name, adapter->ahw->revision_id);
1953 }
1954
1955 if (qlcnic_83xx_check(adapter) && !qlcnic_use_msi_x &&
1956 !!qlcnic_use_msi)
1957 dev_warn(&pdev->dev,
1958 "83xx adapter do not support MSI interrupts\n");
1959
1960 err = qlcnic_setup_intr(adapter, 0);
1961 if (err) {
1962 dev_err(&pdev->dev, "Failed to setup interrupt\n");
1963 goto err_out_disable_msi;
1964 }
1965
1966 if (qlcnic_83xx_check(adapter)) {
1967 err = qlcnic_83xx_setup_mbx_intr(adapter);
1968 if (err)
1969 goto err_out_disable_msi;
1970 }
1971
1972 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
1973 if (err)
1974 goto err_out_disable_mbx_intr;
1975
1976 if (qlcnic_82xx_check(adapter)) {
1977 if (ahw->capabilities & QLCNIC_FW_CAPABILITY_MORE_CAPS) {
1978 capab2 = QLCRD32(adapter, CRB_FW_CAPABILITIES_2);
1979 if (capab2 & QLCNIC_FW_CAPABILITY_2_OCBB)
1980 qlcnic_fw_cmd_set_drv_version(adapter);
1981 }
1982 }
1983
1984 pci_set_drvdata(pdev, adapter);
1985
1986 if (qlcnic_82xx_check(adapter))
1987 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
1988 FW_POLL_DELAY);
1989
1990 switch (adapter->ahw->port_type) {
1991 case QLCNIC_GBE:
1992 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1993 adapter->netdev->name);
1994 break;
1995 case QLCNIC_XGBE:
1996 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1997 adapter->netdev->name);
1998 break;
1999 }
2000
2001 if (qlcnic_get_act_pci_func(adapter))
2002 goto err_out_disable_mbx_intr;
2003
2004 if (adapter->drv_mac_learn)
2005 qlcnic_alloc_lb_filters_mem(adapter);
2006
2007 qlcnic_add_sysfs(adapter);
2008
2009 return 0;
2010
2011 err_out_disable_mbx_intr:
2012 if (qlcnic_83xx_check(adapter))
2013 qlcnic_83xx_free_mbx_intr(adapter);
2014
2015 err_out_disable_msi:
2016 qlcnic_teardown_intr(adapter);
2017 qlcnic_cancel_idc_work(adapter);
2018 qlcnic_clr_all_drv_state(adapter, 0);
2019
2020 err_out_free_hw:
2021 qlcnic_free_adapter_resources(adapter);
2022
2023 err_out_free_netdev:
2024 free_netdev(netdev);
2025
2026 err_out_iounmap:
2027 qlcnic_cleanup_pci_map(adapter);
2028
2029 err_out_free_hw_res:
2030 kfree(ahw);
2031
2032 err_out_free_res:
2033 pci_release_regions(pdev);
2034
2035 err_out_disable_pdev:
2036 pci_set_drvdata(pdev, NULL);
2037 pci_disable_device(pdev);
2038 return err;
2039 }
2040
2041 static void qlcnic_remove(struct pci_dev *pdev)
2042 {
2043 struct qlcnic_adapter *adapter;
2044 struct net_device *netdev;
2045 struct qlcnic_hardware_context *ahw;
2046
2047 adapter = pci_get_drvdata(pdev);
2048 if (adapter == NULL)
2049 return;
2050
2051 netdev = adapter->netdev;
2052 qlcnic_sriov_pf_disable(adapter);
2053
2054 qlcnic_cancel_idc_work(adapter);
2055 ahw = adapter->ahw;
2056
2057 unregister_netdev(netdev);
2058 qlcnic_sriov_cleanup(adapter);
2059
2060 if (qlcnic_83xx_check(adapter)) {
2061 qlcnic_83xx_free_mbx_intr(adapter);
2062 qlcnic_83xx_register_nic_idc_func(adapter, 0);
2063 cancel_delayed_work_sync(&adapter->idc_aen_work);
2064 }
2065
2066 qlcnic_detach(adapter);
2067
2068 if (adapter->npars != NULL)
2069 kfree(adapter->npars);
2070 if (adapter->eswitch != NULL)
2071 kfree(adapter->eswitch);
2072
2073 if (qlcnic_82xx_check(adapter))
2074 qlcnic_clr_all_drv_state(adapter, 0);
2075
2076 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2077
2078 qlcnic_free_lb_filters_mem(adapter);
2079
2080 qlcnic_teardown_intr(adapter);
2081
2082 qlcnic_remove_sysfs(adapter);
2083
2084 qlcnic_cleanup_pci_map(adapter);
2085
2086 qlcnic_release_firmware(adapter);
2087
2088 pci_disable_pcie_error_reporting(pdev);
2089 pci_release_regions(pdev);
2090 pci_disable_device(pdev);
2091 pci_set_drvdata(pdev, NULL);
2092
2093 if (adapter->qlcnic_wq) {
2094 destroy_workqueue(adapter->qlcnic_wq);
2095 adapter->qlcnic_wq = NULL;
2096 }
2097 qlcnic_free_adapter_resources(adapter);
2098 kfree(ahw);
2099 free_netdev(netdev);
2100 }
2101 static int __qlcnic_shutdown(struct pci_dev *pdev)
2102 {
2103 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2104 struct net_device *netdev = adapter->netdev;
2105 int retval;
2106
2107 netif_device_detach(netdev);
2108
2109 qlcnic_cancel_idc_work(adapter);
2110
2111 if (netif_running(netdev))
2112 qlcnic_down(adapter, netdev);
2113
2114 if (qlcnic_82xx_check(adapter))
2115 qlcnic_clr_all_drv_state(adapter, 0);
2116
2117 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2118
2119 retval = pci_save_state(pdev);
2120 if (retval)
2121 return retval;
2122 if (qlcnic_82xx_check(adapter)) {
2123 if (qlcnic_wol_supported(adapter)) {
2124 pci_enable_wake(pdev, PCI_D3cold, 1);
2125 pci_enable_wake(pdev, PCI_D3hot, 1);
2126 }
2127 }
2128
2129 return 0;
2130 }
2131
2132 static void qlcnic_shutdown(struct pci_dev *pdev)
2133 {
2134 if (__qlcnic_shutdown(pdev))
2135 return;
2136
2137 pci_disable_device(pdev);
2138 }
2139
2140 #ifdef CONFIG_PM
2141 static int
2142 qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
2143 {
2144 int retval;
2145
2146 retval = __qlcnic_shutdown(pdev);
2147 if (retval)
2148 return retval;
2149
2150 pci_set_power_state(pdev, pci_choose_state(pdev, state));
2151 return 0;
2152 }
2153
2154 static int
2155 qlcnic_resume(struct pci_dev *pdev)
2156 {
2157 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
2158 struct net_device *netdev = adapter->netdev;
2159 int err;
2160
2161 err = pci_enable_device(pdev);
2162 if (err)
2163 return err;
2164
2165 pci_set_power_state(pdev, PCI_D0);
2166 pci_set_master(pdev);
2167 pci_restore_state(pdev);
2168
2169 err = qlcnic_start_firmware(adapter);
2170 if (err) {
2171 dev_err(&pdev->dev, "failed to start firmware\n");
2172 return err;
2173 }
2174
2175 if (netif_running(netdev)) {
2176 err = qlcnic_up(adapter, netdev);
2177 if (err)
2178 goto done;
2179
2180 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2181 }
2182 done:
2183 netif_device_attach(netdev);
2184 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2185 return 0;
2186 }
2187 #endif
2188
2189 static int qlcnic_open(struct net_device *netdev)
2190 {
2191 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2192 int err;
2193
2194 netif_carrier_off(netdev);
2195
2196 err = qlcnic_attach(adapter);
2197 if (err)
2198 return err;
2199
2200 err = __qlcnic_up(adapter, netdev);
2201 if (err)
2202 goto err_out;
2203
2204 netif_start_queue(netdev);
2205
2206 return 0;
2207
2208 err_out:
2209 qlcnic_detach(adapter);
2210 return err;
2211 }
2212
2213 /*
2214 * qlcnic_close - Disables a network interface entry point
2215 */
2216 static int qlcnic_close(struct net_device *netdev)
2217 {
2218 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2219
2220 __qlcnic_down(adapter, netdev);
2221
2222 return 0;
2223 }
2224
2225 void qlcnic_alloc_lb_filters_mem(struct qlcnic_adapter *adapter)
2226 {
2227 void *head;
2228 int i;
2229 struct net_device *netdev = adapter->netdev;
2230 u32 filter_size = 0;
2231 u16 act_pci_func = 0;
2232
2233 if (adapter->fhash.fmax && adapter->fhash.fhead)
2234 return;
2235
2236 act_pci_func = adapter->ahw->act_pci_func;
2237 spin_lock_init(&adapter->mac_learn_lock);
2238 spin_lock_init(&adapter->rx_mac_learn_lock);
2239
2240 if (qlcnic_82xx_check(adapter)) {
2241 filter_size = QLCNIC_LB_MAX_FILTERS;
2242 adapter->fhash.fbucket_size = QLCNIC_LB_BUCKET_SIZE;
2243 } else {
2244 filter_size = QLC_83XX_LB_MAX_FILTERS;
2245 adapter->fhash.fbucket_size = QLC_83XX_LB_BUCKET_SIZE;
2246 }
2247
2248 head = kcalloc(adapter->fhash.fbucket_size,
2249 sizeof(struct hlist_head), GFP_ATOMIC);
2250
2251 if (!head)
2252 return;
2253
2254 adapter->fhash.fmax = (filter_size / act_pci_func);
2255 adapter->fhash.fhead = head;
2256
2257 netdev_info(netdev, "active nic func = %d, mac filter size=%d\n",
2258 act_pci_func, adapter->fhash.fmax);
2259
2260 for (i = 0; i < adapter->fhash.fbucket_size; i++)
2261 INIT_HLIST_HEAD(&adapter->fhash.fhead[i]);
2262
2263 adapter->rx_fhash.fbucket_size = adapter->fhash.fbucket_size;
2264
2265 head = kcalloc(adapter->rx_fhash.fbucket_size,
2266 sizeof(struct hlist_head), GFP_ATOMIC);
2267
2268 if (!head)
2269 return;
2270
2271 adapter->rx_fhash.fmax = (filter_size / act_pci_func);
2272 adapter->rx_fhash.fhead = head;
2273
2274 for (i = 0; i < adapter->rx_fhash.fbucket_size; i++)
2275 INIT_HLIST_HEAD(&adapter->rx_fhash.fhead[i]);
2276 }
2277
2278 static void qlcnic_free_lb_filters_mem(struct qlcnic_adapter *adapter)
2279 {
2280 if (adapter->fhash.fmax && adapter->fhash.fhead)
2281 kfree(adapter->fhash.fhead);
2282
2283 adapter->fhash.fhead = NULL;
2284 adapter->fhash.fmax = 0;
2285
2286 if (adapter->rx_fhash.fmax && adapter->rx_fhash.fhead)
2287 kfree(adapter->rx_fhash.fhead);
2288
2289 adapter->rx_fhash.fmax = 0;
2290 adapter->rx_fhash.fhead = NULL;
2291 }
2292
2293 int qlcnic_check_temp(struct qlcnic_adapter *adapter)
2294 {
2295 struct net_device *netdev = adapter->netdev;
2296 u32 temp_state, temp_val, temp = 0;
2297 int rv = 0;
2298
2299 if (qlcnic_83xx_check(adapter))
2300 temp = QLCRDX(adapter->ahw, QLC_83XX_ASIC_TEMP);
2301
2302 if (qlcnic_82xx_check(adapter))
2303 temp = QLC_SHARED_REG_RD32(adapter, QLCNIC_ASIC_TEMP);
2304
2305 temp_state = qlcnic_get_temp_state(temp);
2306 temp_val = qlcnic_get_temp_val(temp);
2307
2308 if (temp_state == QLCNIC_TEMP_PANIC) {
2309 dev_err(&netdev->dev,
2310 "Device temperature %d degrees C exceeds"
2311 " maximum allowed. Hardware has been shut down.\n",
2312 temp_val);
2313 rv = 1;
2314 } else if (temp_state == QLCNIC_TEMP_WARN) {
2315 if (adapter->ahw->temp == QLCNIC_TEMP_NORMAL) {
2316 dev_err(&netdev->dev,
2317 "Device temperature %d degrees C "
2318 "exceeds operating range."
2319 " Immediate action needed.\n",
2320 temp_val);
2321 }
2322 } else {
2323 if (adapter->ahw->temp == QLCNIC_TEMP_WARN) {
2324 dev_info(&netdev->dev,
2325 "Device temperature is now %d degrees C"
2326 " in normal range.\n", temp_val);
2327 }
2328 }
2329 adapter->ahw->temp = temp_state;
2330 return rv;
2331 }
2332
2333 static void qlcnic_tx_timeout(struct net_device *netdev)
2334 {
2335 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2336
2337 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2338 return;
2339
2340 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2341
2342 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
2343 adapter->need_fw_reset = 1;
2344 else
2345 adapter->ahw->reset_context = 1;
2346 }
2347
2348 static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
2349 {
2350 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2351 struct net_device_stats *stats = &netdev->stats;
2352
2353 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2354 stats->tx_packets = adapter->stats.xmitfinished;
2355 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
2356 stats->tx_bytes = adapter->stats.txbytes;
2357 stats->rx_dropped = adapter->stats.rxdropped;
2358 stats->tx_dropped = adapter->stats.txdropped;
2359
2360 return stats;
2361 }
2362
2363 irqreturn_t qlcnic_82xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
2364 {
2365 u32 status;
2366
2367 status = readl(adapter->isr_int_vec);
2368
2369 if (!(status & adapter->ahw->int_vec_bit))
2370 return IRQ_NONE;
2371
2372 /* check interrupt state machine, to be sure */
2373 status = readl(adapter->crb_int_state_reg);
2374 if (!ISR_LEGACY_INT_TRIGGERED(status))
2375 return IRQ_NONE;
2376
2377 writel(0xffffffff, adapter->tgt_status_reg);
2378 /* read twice to ensure write is flushed */
2379 readl(adapter->isr_int_vec);
2380 readl(adapter->isr_int_vec);
2381
2382 return IRQ_HANDLED;
2383 }
2384
2385 static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
2386 {
2387 struct qlcnic_host_sds_ring *sds_ring = data;
2388 struct qlcnic_adapter *adapter = sds_ring->adapter;
2389
2390 if (adapter->flags & QLCNIC_MSIX_ENABLED)
2391 goto done;
2392 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
2393 writel(0xffffffff, adapter->tgt_status_reg);
2394 goto done;
2395 }
2396
2397 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2398 return IRQ_NONE;
2399
2400 done:
2401 adapter->ahw->diag_cnt++;
2402 qlcnic_enable_int(sds_ring);
2403 return IRQ_HANDLED;
2404 }
2405
2406 static irqreturn_t qlcnic_intr(int irq, void *data)
2407 {
2408 struct qlcnic_host_sds_ring *sds_ring = data;
2409 struct qlcnic_adapter *adapter = sds_ring->adapter;
2410
2411 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
2412 return IRQ_NONE;
2413
2414 napi_schedule(&sds_ring->napi);
2415
2416 return IRQ_HANDLED;
2417 }
2418
2419 static irqreturn_t qlcnic_msi_intr(int irq, void *data)
2420 {
2421 struct qlcnic_host_sds_ring *sds_ring = data;
2422 struct qlcnic_adapter *adapter = sds_ring->adapter;
2423
2424 /* clear interrupt */
2425 writel(0xffffffff, adapter->tgt_status_reg);
2426
2427 napi_schedule(&sds_ring->napi);
2428 return IRQ_HANDLED;
2429 }
2430
2431 static irqreturn_t qlcnic_msix_intr(int irq, void *data)
2432 {
2433 struct qlcnic_host_sds_ring *sds_ring = data;
2434
2435 napi_schedule(&sds_ring->napi);
2436 return IRQ_HANDLED;
2437 }
2438
2439 static irqreturn_t qlcnic_msix_tx_intr(int irq, void *data)
2440 {
2441 struct qlcnic_host_tx_ring *tx_ring = data;
2442
2443 napi_schedule(&tx_ring->napi);
2444 return IRQ_HANDLED;
2445 }
2446
2447 #ifdef CONFIG_NET_POLL_CONTROLLER
2448 static void qlcnic_poll_controller(struct net_device *netdev)
2449 {
2450 int ring;
2451 struct qlcnic_host_sds_ring *sds_ring;
2452 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2453 struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
2454
2455 disable_irq(adapter->irq);
2456 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2457 sds_ring = &recv_ctx->sds_rings[ring];
2458 qlcnic_intr(adapter->irq, sds_ring);
2459 }
2460 enable_irq(adapter->irq);
2461 }
2462 #endif
2463
2464 static void
2465 qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2466 {
2467 u32 val;
2468
2469 val = adapter->portnum & 0xf;
2470 val |= encoding << 7;
2471 val |= (jiffies - adapter->dev_rst_time) << 8;
2472
2473 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2474 adapter->dev_rst_time = jiffies;
2475 }
2476
2477 static int
2478 qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
2479 {
2480 u32 val;
2481
2482 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2483 state != QLCNIC_DEV_NEED_QUISCENT);
2484
2485 if (qlcnic_api_lock(adapter))
2486 return -EIO;
2487
2488 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2489
2490 if (state == QLCNIC_DEV_NEED_RESET)
2491 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2492 else if (state == QLCNIC_DEV_NEED_QUISCENT)
2493 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
2494
2495 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2496
2497 qlcnic_api_unlock(adapter);
2498
2499 return 0;
2500 }
2501
2502 static int
2503 qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2504 {
2505 u32 val;
2506
2507 if (qlcnic_api_lock(adapter))
2508 return -EBUSY;
2509
2510 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2511 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2512 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2513
2514 qlcnic_api_unlock(adapter);
2515
2516 return 0;
2517 }
2518
2519 static void
2520 qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter, u8 failed)
2521 {
2522 u32 val;
2523
2524 if (qlcnic_api_lock(adapter))
2525 goto err;
2526
2527 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2528 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
2529 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2530
2531 if (failed) {
2532 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2533 QLCNIC_DEV_FAILED);
2534 dev_info(&adapter->pdev->dev,
2535 "Device state set to Failed. Please Reboot\n");
2536 } else if (!(val & 0x11111111))
2537 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2538 QLCNIC_DEV_COLD);
2539
2540 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2541 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
2542 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2543
2544 qlcnic_api_unlock(adapter);
2545 err:
2546 adapter->fw_fail_cnt = 0;
2547 adapter->flags &= ~QLCNIC_FW_HANG;
2548 clear_bit(__QLCNIC_START_FW, &adapter->state);
2549 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2550 }
2551
2552 /* Grab api lock, before checking state */
2553 static int
2554 qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2555 {
2556 int act, state, active_mask;
2557 struct qlcnic_hardware_context *ahw = adapter->ahw;
2558
2559 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2560 act = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2561
2562 if (adapter->flags & QLCNIC_FW_RESET_OWNER) {
2563 active_mask = (~(1 << (ahw->pci_func * 4)));
2564 act = act & active_mask;
2565 }
2566
2567 if (((state & 0x11111111) == (act & 0x11111111)) ||
2568 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2569 return 0;
2570 else
2571 return 1;
2572 }
2573
2574 static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2575 {
2576 u32 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2577
2578 if (val != QLCNIC_DRV_IDC_VER) {
2579 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2580 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2581 }
2582
2583 return 0;
2584 }
2585
2586 static int
2587 qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2588 {
2589 u32 val, prev_state;
2590 u8 dev_init_timeo = adapter->dev_init_timeo;
2591 u8 portnum = adapter->portnum;
2592 u8 ret;
2593
2594 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2595 return 1;
2596
2597 if (qlcnic_api_lock(adapter))
2598 return -1;
2599
2600 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_ACTIVE);
2601 if (!(val & (1 << (portnum * 4)))) {
2602 QLC_DEV_SET_REF_CNT(val, portnum);
2603 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_ACTIVE, val);
2604 }
2605
2606 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2607 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
2608
2609 switch (prev_state) {
2610 case QLCNIC_DEV_COLD:
2611 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2612 QLCNIC_DEV_INITIALIZING);
2613 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_IDC_VER,
2614 QLCNIC_DRV_IDC_VER);
2615 qlcnic_idc_debug_info(adapter, 0);
2616 qlcnic_api_unlock(adapter);
2617 return 1;
2618
2619 case QLCNIC_DEV_READY:
2620 ret = qlcnic_check_idc_ver(adapter);
2621 qlcnic_api_unlock(adapter);
2622 return ret;
2623
2624 case QLCNIC_DEV_NEED_RESET:
2625 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2626 QLC_DEV_SET_RST_RDY(val, portnum);
2627 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2628 break;
2629
2630 case QLCNIC_DEV_NEED_QUISCENT:
2631 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2632 QLC_DEV_SET_QSCNT_RDY(val, portnum);
2633 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2634 break;
2635
2636 case QLCNIC_DEV_FAILED:
2637 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
2638 qlcnic_api_unlock(adapter);
2639 return -1;
2640
2641 case QLCNIC_DEV_INITIALIZING:
2642 case QLCNIC_DEV_QUISCENT:
2643 break;
2644 }
2645
2646 qlcnic_api_unlock(adapter);
2647
2648 do {
2649 msleep(1000);
2650 prev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2651
2652 if (prev_state == QLCNIC_DEV_QUISCENT)
2653 continue;
2654 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
2655
2656 if (!dev_init_timeo) {
2657 dev_err(&adapter->pdev->dev,
2658 "Waiting for device to initialize timeout\n");
2659 return -1;
2660 }
2661
2662 if (qlcnic_api_lock(adapter))
2663 return -1;
2664
2665 val = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DRV_STATE);
2666 QLC_DEV_CLR_RST_QSCNT(val, portnum);
2667 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2668
2669 ret = qlcnic_check_idc_ver(adapter);
2670 qlcnic_api_unlock(adapter);
2671
2672 return ret;
2673 }
2674
2675 static void
2676 qlcnic_fwinit_work(struct work_struct *work)
2677 {
2678 struct qlcnic_adapter *adapter = container_of(work,
2679 struct qlcnic_adapter, fw_work.work);
2680 u32 dev_state = 0xf;
2681 u32 val;
2682
2683 if (qlcnic_api_lock(adapter))
2684 goto err_ret;
2685
2686 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2687 if (dev_state == QLCNIC_DEV_QUISCENT ||
2688 dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2689 qlcnic_api_unlock(adapter);
2690 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2691 FW_POLL_DELAY * 2);
2692 return;
2693 }
2694
2695 if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
2696 qlcnic_api_unlock(adapter);
2697 goto wait_npar;
2698 }
2699
2700 if (dev_state == QLCNIC_DEV_INITIALIZING ||
2701 dev_state == QLCNIC_DEV_READY) {
2702 dev_info(&adapter->pdev->dev, "Detected state change from "
2703 "DEV_NEED_RESET, skipping ack check\n");
2704 goto skip_ack_check;
2705 }
2706
2707 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2708 dev_info(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2709 adapter->reset_ack_timeo);
2710 goto skip_ack_check;
2711 }
2712
2713 if (!qlcnic_check_drv_state(adapter)) {
2714 skip_ack_check:
2715 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2716
2717 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2718 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2719 QLCNIC_DEV_INITIALIZING);
2720 set_bit(__QLCNIC_START_FW, &adapter->state);
2721 QLCDB(adapter, DRV, "Restarting fw\n");
2722 qlcnic_idc_debug_info(adapter, 0);
2723 val = QLC_SHARED_REG_RD32(adapter,
2724 QLCNIC_CRB_DRV_STATE);
2725 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
2726 QLC_SHARED_REG_WR32(adapter,
2727 QLCNIC_CRB_DRV_STATE, val);
2728 }
2729
2730 qlcnic_api_unlock(adapter);
2731
2732 rtnl_lock();
2733 if (adapter->ahw->fw_dump.enable &&
2734 (adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2735 QLCDB(adapter, DRV, "Take FW dump\n");
2736 qlcnic_dump_fw(adapter);
2737 adapter->flags |= QLCNIC_FW_HANG;
2738 }
2739 rtnl_unlock();
2740
2741 adapter->flags &= ~QLCNIC_FW_RESET_OWNER;
2742 if (!adapter->nic_ops->start_firmware(adapter)) {
2743 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2744 adapter->fw_wait_cnt = 0;
2745 return;
2746 }
2747 goto err_ret;
2748 }
2749
2750 qlcnic_api_unlock(adapter);
2751
2752 wait_npar:
2753 dev_state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2754 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
2755
2756 switch (dev_state) {
2757 case QLCNIC_DEV_READY:
2758 if (!qlcnic_start_firmware(adapter)) {
2759 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2760 adapter->fw_wait_cnt = 0;
2761 return;
2762 }
2763 case QLCNIC_DEV_FAILED:
2764 break;
2765 default:
2766 qlcnic_schedule_work(adapter,
2767 qlcnic_fwinit_work, FW_POLL_DELAY);
2768 return;
2769 }
2770
2771 err_ret:
2772 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2773 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
2774 netif_device_attach(adapter->netdev);
2775 qlcnic_clr_all_drv_state(adapter, 0);
2776 }
2777
2778 static void
2779 qlcnic_detach_work(struct work_struct *work)
2780 {
2781 struct qlcnic_adapter *adapter = container_of(work,
2782 struct qlcnic_adapter, fw_work.work);
2783 struct net_device *netdev = adapter->netdev;
2784 u32 status;
2785
2786 netif_device_detach(netdev);
2787
2788 /* Dont grab rtnl lock during Quiscent mode */
2789 if (adapter->dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2790 if (netif_running(netdev))
2791 __qlcnic_down(adapter, netdev);
2792 } else
2793 qlcnic_down(adapter, netdev);
2794
2795 status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2796
2797 if (status & QLCNIC_RCODE_FATAL_ERROR) {
2798 dev_err(&adapter->pdev->dev,
2799 "Detaching the device: peg halt status1=0x%x\n",
2800 status);
2801
2802 if (QLCNIC_FWERROR_CODE(status) == QLCNIC_FWERROR_FAN_FAILURE) {
2803 dev_err(&adapter->pdev->dev,
2804 "On board active cooling fan failed. "
2805 "Device has been halted.\n");
2806 dev_err(&adapter->pdev->dev,
2807 "Replace the adapter.\n");
2808 }
2809
2810 goto err_ret;
2811 }
2812
2813 if (adapter->ahw->temp == QLCNIC_TEMP_PANIC) {
2814 dev_err(&adapter->pdev->dev, "Detaching the device: temp=%d\n",
2815 adapter->ahw->temp);
2816 goto err_ret;
2817 }
2818
2819 /* Dont ack if this instance is the reset owner */
2820 if (!(adapter->flags & QLCNIC_FW_RESET_OWNER)) {
2821 if (qlcnic_set_drv_state(adapter, adapter->dev_state)) {
2822 dev_err(&adapter->pdev->dev,
2823 "Failed to set driver state,"
2824 "detaching the device.\n");
2825 goto err_ret;
2826 }
2827 }
2828
2829 adapter->fw_wait_cnt = 0;
2830
2831 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2832
2833 return;
2834
2835 err_ret:
2836 netif_device_attach(netdev);
2837 qlcnic_clr_all_drv_state(adapter, 1);
2838 }
2839
2840 /*Transit NPAR state to NON Operational */
2841 static void
2842 qlcnic_set_npar_non_operational(struct qlcnic_adapter *adapter)
2843 {
2844 u32 state;
2845
2846 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2847 if (state == QLCNIC_DEV_NPAR_NON_OPER)
2848 return;
2849
2850 if (qlcnic_api_lock(adapter))
2851 return;
2852 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2853 QLCNIC_DEV_NPAR_NON_OPER);
2854 qlcnic_api_unlock(adapter);
2855 }
2856
2857 void qlcnic_82xx_dev_request_reset(struct qlcnic_adapter *adapter, u32 key)
2858 {
2859 u32 state, xg_val = 0, gb_val = 0;
2860
2861 qlcnic_xg_set_xg0_mask(xg_val);
2862 qlcnic_xg_set_xg1_mask(xg_val);
2863 QLCWR32(adapter, QLCNIC_NIU_XG_PAUSE_CTL, xg_val);
2864 qlcnic_gb_set_gb0_mask(gb_val);
2865 qlcnic_gb_set_gb1_mask(gb_val);
2866 qlcnic_gb_set_gb2_mask(gb_val);
2867 qlcnic_gb_set_gb3_mask(gb_val);
2868 QLCWR32(adapter, QLCNIC_NIU_GB_PAUSE_CTL, gb_val);
2869 dev_info(&adapter->pdev->dev, "Pause control frames disabled"
2870 " on all ports\n");
2871 adapter->need_fw_reset = 1;
2872
2873 if (qlcnic_api_lock(adapter))
2874 return;
2875
2876 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2877
2878 if (state == QLCNIC_DEV_READY) {
2879 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
2880 QLCNIC_DEV_NEED_RESET);
2881 adapter->flags |= QLCNIC_FW_RESET_OWNER;
2882 QLCDB(adapter, DRV, "NEED_RESET state set\n");
2883 qlcnic_idc_debug_info(adapter, 0);
2884 }
2885
2886 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2887 QLCNIC_DEV_NPAR_NON_OPER);
2888 qlcnic_api_unlock(adapter);
2889 }
2890
2891 /* Transit to NPAR READY state from NPAR NOT READY state */
2892 static void
2893 qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2894 {
2895 if (qlcnic_api_lock(adapter))
2896 return;
2897
2898 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2899 QLCNIC_DEV_NPAR_OPER);
2900 QLCDB(adapter, DRV, "NPAR operational state set\n");
2901
2902 qlcnic_api_unlock(adapter);
2903 }
2904
2905 void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2906 work_func_t func, int delay)
2907 {
2908 if (test_bit(__QLCNIC_AER, &adapter->state))
2909 return;
2910
2911 INIT_DELAYED_WORK(&adapter->fw_work, func);
2912 queue_delayed_work(adapter->qlcnic_wq, &adapter->fw_work,
2913 round_jiffies_relative(delay));
2914 }
2915
2916 static void
2917 qlcnic_attach_work(struct work_struct *work)
2918 {
2919 struct qlcnic_adapter *adapter = container_of(work,
2920 struct qlcnic_adapter, fw_work.work);
2921 struct net_device *netdev = adapter->netdev;
2922 u32 npar_state;
2923
2924 if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
2925 npar_state = QLC_SHARED_REG_RD32(adapter,
2926 QLCNIC_CRB_DEV_NPAR_STATE);
2927 if (adapter->fw_wait_cnt++ > QLCNIC_DEV_NPAR_OPER_TIMEO)
2928 qlcnic_clr_all_drv_state(adapter, 0);
2929 else if (npar_state != QLCNIC_DEV_NPAR_OPER)
2930 qlcnic_schedule_work(adapter, qlcnic_attach_work,
2931 FW_POLL_DELAY);
2932 else
2933 goto attach;
2934 QLCDB(adapter, DRV, "Waiting for NPAR state to operational\n");
2935 return;
2936 }
2937 attach:
2938 if (netif_running(netdev)) {
2939 if (qlcnic_up(adapter, netdev))
2940 goto done;
2941
2942 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
2943 }
2944
2945 done:
2946 netif_device_attach(netdev);
2947 adapter->fw_fail_cnt = 0;
2948 adapter->flags &= ~QLCNIC_FW_HANG;
2949 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2950
2951 if (!qlcnic_clr_drv_state(adapter))
2952 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2953 FW_POLL_DELAY);
2954 }
2955
2956 static int
2957 qlcnic_check_health(struct qlcnic_adapter *adapter)
2958 {
2959 u32 state = 0, heartbeat;
2960 u32 peg_status;
2961
2962 if (qlcnic_check_temp(adapter))
2963 goto detach;
2964
2965 if (adapter->need_fw_reset)
2966 qlcnic_dev_request_reset(adapter, 0);
2967
2968 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
2969 if (state == QLCNIC_DEV_NEED_RESET) {
2970 qlcnic_set_npar_non_operational(adapter);
2971 adapter->need_fw_reset = 1;
2972 } else if (state == QLCNIC_DEV_NEED_QUISCENT)
2973 goto detach;
2974
2975 heartbeat = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2976 if (heartbeat != adapter->heartbeat) {
2977 adapter->heartbeat = heartbeat;
2978 adapter->fw_fail_cnt = 0;
2979 if (adapter->need_fw_reset)
2980 goto detach;
2981
2982 if (adapter->ahw->reset_context && qlcnic_auto_fw_reset) {
2983 qlcnic_reset_hw_context(adapter);
2984 adapter->netdev->trans_start = jiffies;
2985 }
2986
2987 return 0;
2988 }
2989
2990 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2991 return 0;
2992
2993 adapter->flags |= QLCNIC_FW_HANG;
2994
2995 qlcnic_dev_request_reset(adapter, 0);
2996
2997 if (qlcnic_auto_fw_reset)
2998 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2999
3000 dev_err(&adapter->pdev->dev, "firmware hang detected\n");
3001 peg_status = QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS1);
3002 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
3003 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
3004 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
3005 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
3006 "PEG_NET_4_PC: 0x%x\n",
3007 peg_status,
3008 QLC_SHARED_REG_RD32(adapter, QLCNIC_PEG_HALT_STATUS2),
3009 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_0 + 0x3c),
3010 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_1 + 0x3c),
3011 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_2 + 0x3c),
3012 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_3 + 0x3c),
3013 QLCRD32(adapter, QLCNIC_CRB_PEG_NET_4 + 0x3c));
3014 if (QLCNIC_FWERROR_CODE(peg_status) == 0x67)
3015 dev_err(&adapter->pdev->dev,
3016 "Firmware aborted with error code 0x00006700. "
3017 "Device is being reset.\n");
3018 detach:
3019 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
3020 QLCNIC_DEV_NEED_RESET;
3021
3022 if (qlcnic_auto_fw_reset && !test_and_set_bit(__QLCNIC_RESETTING,
3023 &adapter->state)) {
3024
3025 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
3026 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
3027 }
3028
3029 return 1;
3030 }
3031
3032 static void
3033 qlcnic_fw_poll_work(struct work_struct *work)
3034 {
3035 struct qlcnic_adapter *adapter = container_of(work,
3036 struct qlcnic_adapter, fw_work.work);
3037
3038 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3039 goto reschedule;
3040
3041
3042 if (qlcnic_check_health(adapter))
3043 return;
3044
3045 if (adapter->fhash.fnum)
3046 qlcnic_prune_lb_filters(adapter);
3047
3048 reschedule:
3049 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
3050 }
3051
3052 static int qlcnic_is_first_func(struct pci_dev *pdev)
3053 {
3054 struct pci_dev *oth_pdev;
3055 int val = pdev->devfn;
3056
3057 while (val-- > 0) {
3058 oth_pdev = pci_get_domain_bus_and_slot(pci_domain_nr
3059 (pdev->bus), pdev->bus->number,
3060 PCI_DEVFN(PCI_SLOT(pdev->devfn), val));
3061 if (!oth_pdev)
3062 continue;
3063
3064 if (oth_pdev->current_state != PCI_D3cold) {
3065 pci_dev_put(oth_pdev);
3066 return 0;
3067 }
3068 pci_dev_put(oth_pdev);
3069 }
3070 return 1;
3071 }
3072
3073 static int qlcnic_attach_func(struct pci_dev *pdev)
3074 {
3075 int err, first_func;
3076 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3077 struct net_device *netdev = adapter->netdev;
3078
3079 pdev->error_state = pci_channel_io_normal;
3080
3081 err = pci_enable_device(pdev);
3082 if (err)
3083 return err;
3084
3085 pci_set_power_state(pdev, PCI_D0);
3086 pci_set_master(pdev);
3087 pci_restore_state(pdev);
3088
3089 first_func = qlcnic_is_first_func(pdev);
3090
3091 if (qlcnic_api_lock(adapter))
3092 return -EINVAL;
3093
3094 if (adapter->ahw->op_mode != QLCNIC_NON_PRIV_FUNC && first_func) {
3095 adapter->need_fw_reset = 1;
3096 set_bit(__QLCNIC_START_FW, &adapter->state);
3097 QLC_SHARED_REG_WR32(adapter, QLCNIC_CRB_DEV_STATE,
3098 QLCNIC_DEV_INITIALIZING);
3099 QLCDB(adapter, DRV, "Restarting fw\n");
3100 }
3101 qlcnic_api_unlock(adapter);
3102
3103 err = qlcnic_start_firmware(adapter);
3104 if (err)
3105 return err;
3106
3107 qlcnic_clr_drv_state(adapter);
3108 kfree(adapter->msix_entries);
3109 adapter->msix_entries = NULL;
3110 err = qlcnic_setup_intr(adapter, 0);
3111
3112 if (err) {
3113 kfree(adapter->msix_entries);
3114 netdev_err(netdev, "failed to setup interrupt\n");
3115 return err;
3116 }
3117
3118 if (qlcnic_83xx_check(adapter)) {
3119 /* register for NIC IDC AEN Events */
3120 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3121 err = qlcnic_83xx_setup_mbx_intr(adapter);
3122 if (err) {
3123 dev_err(&adapter->pdev->dev,
3124 "failed to setup mbx interrupt\n");
3125 qlcnic_clr_all_drv_state(adapter, 1);
3126 clear_bit(__QLCNIC_AER, &adapter->state);
3127 goto done;
3128 }
3129 }
3130
3131 if (netif_running(netdev)) {
3132 err = qlcnic_attach(adapter);
3133 if (err) {
3134 qlcnic_clr_all_drv_state(adapter, 1);
3135 clear_bit(__QLCNIC_AER, &adapter->state);
3136 netif_device_attach(netdev);
3137 return err;
3138 }
3139
3140 err = qlcnic_up(adapter, netdev);
3141 if (err)
3142 goto done;
3143
3144 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3145 }
3146 done:
3147 netif_device_attach(netdev);
3148 return err;
3149 }
3150
3151 static pci_ers_result_t qlcnic_io_error_detected(struct pci_dev *pdev,
3152 pci_channel_state_t state)
3153 {
3154 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3155 struct net_device *netdev = adapter->netdev;
3156
3157 if (state == pci_channel_io_perm_failure)
3158 return PCI_ERS_RESULT_DISCONNECT;
3159
3160 if (state == pci_channel_io_normal)
3161 return PCI_ERS_RESULT_RECOVERED;
3162
3163 set_bit(__QLCNIC_AER, &adapter->state);
3164 netif_device_detach(netdev);
3165
3166 cancel_delayed_work_sync(&adapter->fw_work);
3167
3168 if (netif_running(netdev))
3169 qlcnic_down(adapter, netdev);
3170
3171 if (qlcnic_83xx_check(adapter)) {
3172 qlcnic_83xx_free_mbx_intr(adapter);
3173 qlcnic_83xx_register_nic_idc_func(adapter, 0);
3174 cancel_delayed_work_sync(&adapter->idc_aen_work);
3175 }
3176
3177 qlcnic_detach(adapter);
3178 qlcnic_teardown_intr(adapter);
3179
3180 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3181
3182 pci_save_state(pdev);
3183 pci_disable_device(pdev);
3184
3185 return PCI_ERS_RESULT_NEED_RESET;
3186 }
3187
3188 static pci_ers_result_t qlcnic_io_slot_reset(struct pci_dev *pdev)
3189 {
3190 return qlcnic_attach_func(pdev) ? PCI_ERS_RESULT_DISCONNECT :
3191 PCI_ERS_RESULT_RECOVERED;
3192 }
3193
3194 static void qlcnic_io_resume(struct pci_dev *pdev)
3195 {
3196 u32 state;
3197 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3198
3199 pci_cleanup_aer_uncorrect_error_status(pdev);
3200 state = QLC_SHARED_REG_RD32(adapter, QLCNIC_CRB_DEV_STATE);
3201 if (state == QLCNIC_DEV_READY && test_and_clear_bit(__QLCNIC_AER,
3202 &adapter->state))
3203 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
3204 FW_POLL_DELAY);
3205 }
3206
3207 static int
3208 qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
3209 {
3210 int err;
3211
3212 err = qlcnic_can_start_firmware(adapter);
3213 if (err)
3214 return err;
3215
3216 err = qlcnic_check_npar_opertional(adapter);
3217 if (err)
3218 return err;
3219
3220 err = qlcnic_initialize_nic(adapter);
3221 if (err)
3222 return err;
3223
3224 qlcnic_check_options(adapter);
3225
3226 err = qlcnic_set_eswitch_port_config(adapter);
3227 if (err)
3228 return err;
3229
3230 adapter->need_fw_reset = 0;
3231
3232 return err;
3233 }
3234
3235 int qlcnic_validate_max_rss(u8 max_hw, u8 val)
3236 {
3237 u32 max_allowed;
3238
3239 if (max_hw > QLC_MAX_SDS_RINGS) {
3240 max_hw = QLC_MAX_SDS_RINGS;
3241 pr_info("max rss reset to %d\n", QLC_MAX_SDS_RINGS);
3242 }
3243
3244 max_allowed = rounddown_pow_of_two(min_t(int, max_hw,
3245 num_online_cpus()));
3246 if ((val > max_allowed) || (val < 2) || !is_power_of_2(val)) {
3247 pr_info("rss_ring valid range [2 - %x] in powers of 2\n",
3248 max_allowed);
3249 return -EINVAL;
3250 }
3251 return 0;
3252 }
3253
3254 int qlcnic_set_max_rss(struct qlcnic_adapter *adapter, u8 data, size_t len)
3255 {
3256 int err;
3257 struct net_device *netdev = adapter->netdev;
3258
3259 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
3260 return -EBUSY;
3261
3262 netif_device_detach(netdev);
3263 if (netif_running(netdev))
3264 __qlcnic_down(adapter, netdev);
3265
3266 qlcnic_detach(adapter);
3267
3268 if (qlcnic_83xx_check(adapter))
3269 qlcnic_83xx_free_mbx_intr(adapter);
3270
3271 qlcnic_teardown_intr(adapter);
3272 err = qlcnic_setup_intr(adapter, data);
3273 if (err) {
3274 kfree(adapter->msix_entries);
3275 netdev_err(netdev, "failed to setup interrupt\n");
3276 return err;
3277 }
3278
3279 if (qlcnic_83xx_check(adapter)) {
3280 /* register for NIC IDC AEN Events */
3281 qlcnic_83xx_register_nic_idc_func(adapter, 1);
3282 err = qlcnic_83xx_setup_mbx_intr(adapter);
3283 if (err) {
3284 dev_err(&adapter->pdev->dev,
3285 "failed to setup mbx interrupt\n");
3286 goto done;
3287 }
3288 }
3289
3290 if (netif_running(netdev)) {
3291 err = qlcnic_attach(adapter);
3292 if (err)
3293 goto done;
3294 err = __qlcnic_up(adapter, netdev);
3295 if (err)
3296 goto done;
3297 qlcnic_restore_indev_addr(netdev, NETDEV_UP);
3298 }
3299 err = len;
3300 done:
3301 netif_device_attach(netdev);
3302 clear_bit(__QLCNIC_RESETTING, &adapter->state);
3303 return err;
3304 }
3305
3306 #ifdef CONFIG_INET
3307
3308 #define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
3309
3310 static void
3311 qlcnic_config_indev_addr(struct qlcnic_adapter *adapter,
3312 struct net_device *dev, unsigned long event)
3313 {
3314 struct in_device *indev;
3315
3316 indev = in_dev_get(dev);
3317 if (!indev)
3318 return;
3319
3320 for_ifa(indev) {
3321 switch (event) {
3322 case NETDEV_UP:
3323 qlcnic_config_ipaddr(adapter,
3324 ifa->ifa_address, QLCNIC_IP_UP);
3325 break;
3326 case NETDEV_DOWN:
3327 qlcnic_config_ipaddr(adapter,
3328 ifa->ifa_address, QLCNIC_IP_DOWN);
3329 break;
3330 default:
3331 break;
3332 }
3333 } endfor_ifa(indev);
3334
3335 in_dev_put(indev);
3336 }
3337
3338 void qlcnic_restore_indev_addr(struct net_device *netdev, unsigned long event)
3339 {
3340 struct qlcnic_adapter *adapter = netdev_priv(netdev);
3341 struct net_device *dev;
3342 u16 vid;
3343
3344 qlcnic_config_indev_addr(adapter, netdev, event);
3345
3346 rcu_read_lock();
3347 for_each_set_bit(vid, adapter->vlans, VLAN_N_VID) {
3348 dev = __vlan_find_dev_deep(netdev, vid);
3349 if (!dev)
3350 continue;
3351 qlcnic_config_indev_addr(adapter, dev, event);
3352 }
3353 rcu_read_unlock();
3354 }
3355
3356 static int qlcnic_netdev_event(struct notifier_block *this,
3357 unsigned long event, void *ptr)
3358 {
3359 struct qlcnic_adapter *adapter;
3360 struct net_device *dev = (struct net_device *)ptr;
3361
3362 recheck:
3363 if (dev == NULL)
3364 goto done;
3365
3366 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3367 dev = vlan_dev_real_dev(dev);
3368 goto recheck;
3369 }
3370
3371 if (!is_qlcnic_netdev(dev))
3372 goto done;
3373
3374 adapter = netdev_priv(dev);
3375
3376 if (!adapter)
3377 goto done;
3378
3379 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3380 goto done;
3381
3382 qlcnic_config_indev_addr(adapter, dev, event);
3383 done:
3384 return NOTIFY_DONE;
3385 }
3386
3387 static int
3388 qlcnic_inetaddr_event(struct notifier_block *this,
3389 unsigned long event, void *ptr)
3390 {
3391 struct qlcnic_adapter *adapter;
3392 struct net_device *dev;
3393
3394 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3395
3396 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3397
3398 recheck:
3399 if (dev == NULL)
3400 goto done;
3401
3402 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3403 dev = vlan_dev_real_dev(dev);
3404 goto recheck;
3405 }
3406
3407 if (!is_qlcnic_netdev(dev))
3408 goto done;
3409
3410 adapter = netdev_priv(dev);
3411
3412 if (!adapter)
3413 goto done;
3414
3415 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
3416 goto done;
3417
3418 switch (event) {
3419 case NETDEV_UP:
3420 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
3421
3422 break;
3423 case NETDEV_DOWN:
3424 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
3425
3426 break;
3427 default:
3428 break;
3429 }
3430
3431 done:
3432 return NOTIFY_DONE;
3433 }
3434
3435 static struct notifier_block qlcnic_netdev_cb = {
3436 .notifier_call = qlcnic_netdev_event,
3437 };
3438
3439 static struct notifier_block qlcnic_inetaddr_cb = {
3440 .notifier_call = qlcnic_inetaddr_event,
3441 };
3442 #else
3443 void qlcnic_restore_indev_addr(struct net_device *dev, unsigned long event)
3444 { }
3445 #endif
3446 static const struct pci_error_handlers qlcnic_err_handler = {
3447 .error_detected = qlcnic_io_error_detected,
3448 .slot_reset = qlcnic_io_slot_reset,
3449 .resume = qlcnic_io_resume,
3450 };
3451
3452 static struct pci_driver qlcnic_driver = {
3453 .name = qlcnic_driver_name,
3454 .id_table = qlcnic_pci_tbl,
3455 .probe = qlcnic_probe,
3456 .remove = qlcnic_remove,
3457 #ifdef CONFIG_PM
3458 .suspend = qlcnic_suspend,
3459 .resume = qlcnic_resume,
3460 #endif
3461 .shutdown = qlcnic_shutdown,
3462 .err_handler = &qlcnic_err_handler,
3463 #ifdef CONFIG_QLCNIC_SRIOV
3464 .sriov_configure = qlcnic_pci_sriov_configure,
3465 #endif
3466
3467 };
3468
3469 static int __init qlcnic_init_module(void)
3470 {
3471 int ret;
3472
3473 printk(KERN_INFO "%s\n", qlcnic_driver_string);
3474
3475 #ifdef CONFIG_INET
3476 register_netdevice_notifier(&qlcnic_netdev_cb);
3477 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3478 #endif
3479
3480 ret = pci_register_driver(&qlcnic_driver);
3481 if (ret) {
3482 #ifdef CONFIG_INET
3483 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3484 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3485 #endif
3486 }
3487
3488 return ret;
3489 }
3490
3491 module_init(qlcnic_init_module);
3492
3493 static void __exit qlcnic_exit_module(void)
3494 {
3495 pci_unregister_driver(&qlcnic_driver);
3496
3497 #ifdef CONFIG_INET
3498 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3499 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3500 #endif
3501 }
3502
3503 module_exit(qlcnic_exit_module);
kernel source for telekom puls (alcatel/mediatek)