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qlcnic: fix mac address mgmt
[net-next-2.6.git] / drivers / net / qlcnic / qlcnic_main.c
CommitLineData
af19b491
AKS		 1/*
2 * Copyright (C) 2009 - QLogic Corporation.
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
18 * MA 02111-1307, USA.
19 *
20 * The full GNU General Public License is included in this distribution
21 * in the file called "COPYING".
22 *
23 */
24
5a0e3ad6 25#include <linux/slab.h>
af19b491
AKS		 26#include <linux/vmalloc.h>
27#include <linux/interrupt.h>
28
29#include "qlcnic.h"
30
31#include <linux/dma-mapping.h>
32#include <linux/if_vlan.h>
33#include <net/ip.h>
34#include <linux/ipv6.h>
35#include <linux/inetdevice.h>
36#include <linux/sysfs.h>
37
7f9a0c34 38MODULE_DESCRIPTION("QLogic 1/10 GbE Converged/Intelligent Ethernet Driver");
af19b491
AKS		 39MODULE_LICENSE("GPL");
40MODULE_VERSION(QLCNIC_LINUX_VERSIONID);
41MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME);
42
43char qlcnic_driver_name[] = "qlcnic";
7f9a0c34
SV		 44static const char qlcnic_driver_string[] = "QLogic 1/10 GbE "
45 "Converged/Intelligent Ethernet Driver v" QLCNIC_LINUX_VERSIONID;
af19b491
AKS		 46
47static int port_mode = QLCNIC_PORT_MODE_AUTO_NEG;
48
49/* Default to restricted 1G auto-neg mode */
50static int wol_port_mode = 5;
51
52static int use_msi = 1;
53module_param(use_msi, int, 0644);
54MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled");
55
56static int use_msi_x = 1;
57module_param(use_msi_x, int, 0644);
58MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled");
59
60static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
61module_param(auto_fw_reset, int, 0644);
62MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled");
63
4d5bdb38
AKS		 64static int load_fw_file;
65module_param(load_fw_file, int, 0644);
66MODULE_PARM_DESC(load_fw_file, "Load firmware from (0=flash, 1=file");
67
2e9d722d
AC		 68static int qlcnic_config_npars;
69module_param(qlcnic_config_npars, int, 0644);
70MODULE_PARM_DESC(qlcnic_config_npars, "Configure NPARs (0=disabled, 1=enabled");
71
af19b491
AKS		 72static int __devinit qlcnic_probe(struct pci_dev *pdev,
73 const struct pci_device_id *ent);
74static void __devexit qlcnic_remove(struct pci_dev *pdev);
75static int qlcnic_open(struct net_device *netdev);
76static int qlcnic_close(struct net_device *netdev);
af19b491
AKS		 77static void qlcnic_tx_timeout(struct net_device *netdev);
78static void qlcnic_tx_timeout_task(struct work_struct *work);
79static void qlcnic_attach_work(struct work_struct *work);
80static void qlcnic_fwinit_work(struct work_struct *work);
81static void qlcnic_fw_poll_work(struct work_struct *work);
82static void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
83 work_func_t func, int delay);
84static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter);
85static int qlcnic_poll(struct napi_struct *napi, int budget);
8f891387 86static int qlcnic_rx_poll(struct napi_struct *napi, int budget);
af19b491
AKS		 87#ifdef CONFIG_NET_POLL_CONTROLLER
88static void qlcnic_poll_controller(struct net_device *netdev);
89#endif
90
91static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter);
92static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter);
93static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter);
94static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter);
95
6df900e9 96static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
af19b491
AKS		 97static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter);
98static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
99
7eb9855d 100static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
af19b491
AKS		 101static irqreturn_t qlcnic_intr(int irq, void *data);
102static irqreturn_t qlcnic_msi_intr(int irq, void *data);
103static irqreturn_t qlcnic_msix_intr(int irq, void *data);
104
105static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
106static void qlcnic_config_indev_addr(struct net_device *dev, unsigned long);
9f26f547
AC		 107static int qlcnic_start_firmware(struct qlcnic_adapter *);
108
109static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
110static void qlcnicvf_clear_ilb_mode(struct qlcnic_adapter *);
111static int qlcnicvf_set_ilb_mode(struct qlcnic_adapter *);
112static int qlcnicvf_config_led(struct qlcnic_adapter *, u32, u32);
113static int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *, u32);
114static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
af19b491
AKS		 115/* PCI Device ID Table */
116#define ENTRY(device) \
117 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
118 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
119
120#define PCI_DEVICE_ID_QLOGIC_QLE824X 0x8020
121
6a902881 122static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
af19b491
AKS		 123 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
124 {0,}
125};
126
127MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
128
129
130void
131qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
132 struct qlcnic_host_tx_ring *tx_ring)
133{
134 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
af19b491
AKS		 135}
136
137static const u32 msi_tgt_status[8] = {
138 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
139 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
140 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
141 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
142};
143
144static const
145struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
146
147static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring)
148{
149 writel(0, sds_ring->crb_intr_mask);
150}
151
152static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
153{
154 struct qlcnic_adapter *adapter = sds_ring->adapter;
155
156 writel(0x1, sds_ring->crb_intr_mask);
157
158 if (!QLCNIC_IS_MSI_FAMILY(adapter))
159 writel(0xfbff, adapter->tgt_mask_reg);
160}
161
162static int
163qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
164{
165 int size = sizeof(struct qlcnic_host_sds_ring) * count;
166
167 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
168
169 return (recv_ctx->sds_rings == NULL);
170}
171
172static void
173qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
174{
175 if (recv_ctx->sds_rings != NULL)
176 kfree(recv_ctx->sds_rings);
177
178 recv_ctx->sds_rings = NULL;
179}
180
181static int
182qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev)
183{
184 int ring;
185 struct qlcnic_host_sds_ring *sds_ring;
186 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
187
188 if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
189 return -ENOMEM;
190
191 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
192 sds_ring = &recv_ctx->sds_rings[ring];
8f891387 193
194 if (ring == adapter->max_sds_rings - 1)
195 netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll,
196 QLCNIC_NETDEV_WEIGHT/adapter->max_sds_rings);
197 else
198 netif_napi_add(netdev, &sds_ring->napi,
199 qlcnic_rx_poll, QLCNIC_NETDEV_WEIGHT*2);
af19b491
AKS		 200 }
201
202 return 0;
203}
204
205static void
206qlcnic_napi_del(struct qlcnic_adapter *adapter)
207{
208 int ring;
209 struct qlcnic_host_sds_ring *sds_ring;
210 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
211
212 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
213 sds_ring = &recv_ctx->sds_rings[ring];
214 netif_napi_del(&sds_ring->napi);
215 }
216
217 qlcnic_free_sds_rings(&adapter->recv_ctx);
218}
219
220static void
221qlcnic_napi_enable(struct qlcnic_adapter *adapter)
222{
223 int ring;
224 struct qlcnic_host_sds_ring *sds_ring;
225 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
226
780ab790
AKS		 227 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
228 return;
229
af19b491
AKS		 230 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
231 sds_ring = &recv_ctx->sds_rings[ring];
232 napi_enable(&sds_ring->napi);
233 qlcnic_enable_int(sds_ring);
234 }
235}
236
237static void
238qlcnic_napi_disable(struct qlcnic_adapter *adapter)
239{
240 int ring;
241 struct qlcnic_host_sds_ring *sds_ring;
242 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
243
780ab790
AKS		 244 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
245 return;
246
af19b491
AKS		 247 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
248 sds_ring = &recv_ctx->sds_rings[ring];
249 qlcnic_disable_int(sds_ring);
250 napi_synchronize(&sds_ring->napi);
251 napi_disable(&sds_ring->napi);
252 }
253}
254
255static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
256{
257 memset(&adapter->stats, 0, sizeof(adapter->stats));
af19b491
AKS		 258}
259
af19b491
AKS		 260static void qlcnic_set_port_mode(struct qlcnic_adapter *adapter)
261{
262 u32 val, data;
263
264 val = adapter->ahw.board_type;
265 if ((val == QLCNIC_BRDTYPE_P3_HMEZ) ||
266 (val == QLCNIC_BRDTYPE_P3_XG_LOM)) {
267 if (port_mode == QLCNIC_PORT_MODE_802_3_AP) {
268 data = QLCNIC_PORT_MODE_802_3_AP;
269 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
270 } else if (port_mode == QLCNIC_PORT_MODE_XG) {
271 data = QLCNIC_PORT_MODE_XG;
272 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
273 } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_1G) {
274 data = QLCNIC_PORT_MODE_AUTO_NEG_1G;
275 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
276 } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_XG) {
277 data = QLCNIC_PORT_MODE_AUTO_NEG_XG;
278 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
279 } else {
280 data = QLCNIC_PORT_MODE_AUTO_NEG;
281 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
282 }
283
284 if ((wol_port_mode != QLCNIC_PORT_MODE_802_3_AP) &&
285 (wol_port_mode != QLCNIC_PORT_MODE_XG) &&
286 (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_1G) &&
287 (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_XG)) {
288 wol_port_mode = QLCNIC_PORT_MODE_AUTO_NEG;
289 }
290 QLCWR32(adapter, QLCNIC_WOL_PORT_MODE, wol_port_mode);
291 }
292}
293
294static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
295{
296 u32 control;
297 int pos;
298
299 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
300 if (pos) {
301 pci_read_config_dword(pdev, pos, &control);
302 if (enable)
303 control |= PCI_MSIX_FLAGS_ENABLE;
304 else
305 control = 0;
306 pci_write_config_dword(pdev, pos, control);
307 }
308}
309
310static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
311{
312 int i;
313
314 for (i = 0; i < count; i++)
315 adapter->msix_entries[i].entry = i;
316}
317
318static int
319qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
320{
2e9d722d 321 u8 mac_addr[ETH_ALEN];
af19b491
AKS		 322 struct net_device *netdev = adapter->netdev;
323 struct pci_dev *pdev = adapter->pdev;
324
2e9d722d 325 if (adapter->nic_ops->get_mac_addr(adapter, mac_addr) != 0)
af19b491
AKS		 326 return -EIO;
327
2e9d722d 328 memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
af19b491
AKS		 329 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
330 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
331
332 /* set station address */
333
334 if (!is_valid_ether_addr(netdev->perm_addr))
335 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
336 netdev->dev_addr);
337
338 return 0;
339}
340
341static int qlcnic_set_mac(struct net_device *netdev, void *p)
342{
343 struct qlcnic_adapter *adapter = netdev_priv(netdev);
344 struct sockaddr *addr = p;
345
346 if (!is_valid_ether_addr(addr->sa_data))
347 return -EINVAL;
348
349 if (netif_running(netdev)) {
350 netif_device_detach(netdev);
351 qlcnic_napi_disable(adapter);
352 }
353
354 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
355 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
356 qlcnic_set_multi(adapter->netdev);
357
358 if (netif_running(netdev)) {
359 netif_device_attach(netdev);
360 qlcnic_napi_enable(adapter);
361 }
362 return 0;
363}
364
365static const struct net_device_ops qlcnic_netdev_ops = {
366 .ndo_open = qlcnic_open,
367 .ndo_stop = qlcnic_close,
368 .ndo_start_xmit = qlcnic_xmit_frame,
369 .ndo_get_stats = qlcnic_get_stats,
370 .ndo_validate_addr = eth_validate_addr,
371 .ndo_set_multicast_list = qlcnic_set_multi,
372 .ndo_set_mac_address = qlcnic_set_mac,
373 .ndo_change_mtu = qlcnic_change_mtu,
374 .ndo_tx_timeout = qlcnic_tx_timeout,
375#ifdef CONFIG_NET_POLL_CONTROLLER
376 .ndo_poll_controller = qlcnic_poll_controller,
377#endif
378};
379
2e9d722d
AC		 380static struct qlcnic_nic_template qlcnic_ops = {
381 .get_mac_addr = qlcnic_get_mac_addr,
382 .config_bridged_mode = qlcnic_config_bridged_mode,
383 .config_led = qlcnic_config_led,
384 .set_ilb_mode = qlcnic_set_ilb_mode,
9f26f547
AC		 385 .clear_ilb_mode = qlcnic_clear_ilb_mode,
386 .start_firmware = qlcnic_start_firmware
2e9d722d
AC		 387};
388
389static struct qlcnic_nic_template qlcnic_pf_ops = {
390 .get_mac_addr = qlcnic_get_mac_address,
391 .config_bridged_mode = qlcnic_config_bridged_mode,
392 .config_led = qlcnic_config_led,
393 .set_ilb_mode = qlcnic_set_ilb_mode,
9f26f547
AC		 394 .clear_ilb_mode = qlcnic_clear_ilb_mode,
395 .start_firmware = qlcnic_start_firmware
396};
397
398static struct qlcnic_nic_template qlcnic_vf_ops = {
399 .get_mac_addr = qlcnic_get_mac_address,
400 .config_bridged_mode = qlcnicvf_config_bridged_mode,
401 .config_led = qlcnicvf_config_led,
402 .set_ilb_mode = qlcnicvf_set_ilb_mode,
403 .clear_ilb_mode = qlcnicvf_clear_ilb_mode,
404 .start_firmware = qlcnicvf_start_firmware
2e9d722d
AC		 405};
406
af19b491
AKS		 407static void
408qlcnic_setup_intr(struct qlcnic_adapter *adapter)
409{
410 const struct qlcnic_legacy_intr_set *legacy_intrp;
411 struct pci_dev *pdev = adapter->pdev;
412 int err, num_msix;
413
414 if (adapter->rss_supported) {
415 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
416 MSIX_ENTRIES_PER_ADAPTER : 2;
417 } else
418 num_msix = 1;
419
420 adapter->max_sds_rings = 1;
421
422 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
423
424 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
425
426 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
427 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
428 legacy_intrp->tgt_status_reg);
429 adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
430 legacy_intrp->tgt_mask_reg);
431 adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
432
433 adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
434 ISR_INT_STATE_REG);
435
436 qlcnic_set_msix_bit(pdev, 0);
437
438 if (adapter->msix_supported) {
439
440 qlcnic_init_msix_entries(adapter, num_msix);
441 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
442 if (err == 0) {
443 adapter->flags |= QLCNIC_MSIX_ENABLED;
444 qlcnic_set_msix_bit(pdev, 1);
445
446 if (adapter->rss_supported)
447 adapter->max_sds_rings = num_msix;
448
449 dev_info(&pdev->dev, "using msi-x interrupts\n");
450 return;
451 }
452
453 if (err > 0)
454 pci_disable_msix(pdev);
455
456 /* fall through for msi */
457 }
458
459 if (use_msi && !pci_enable_msi(pdev)) {
460 adapter->flags |= QLCNIC_MSI_ENABLED;
461 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
462 msi_tgt_status[adapter->ahw.pci_func]);
463 dev_info(&pdev->dev, "using msi interrupts\n");
464 adapter->msix_entries[0].vector = pdev->irq;
465 return;
466 }
467
468 dev_info(&pdev->dev, "using legacy interrupts\n");
469 adapter->msix_entries[0].vector = pdev->irq;
470}
471
472static void
473qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
474{
475 if (adapter->flags & QLCNIC_MSIX_ENABLED)
476 pci_disable_msix(adapter->pdev);
477 if (adapter->flags & QLCNIC_MSI_ENABLED)
478 pci_disable_msi(adapter->pdev);
479}
480
481static void
482qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
483{
484 if (adapter->ahw.pci_base0 != NULL)
485 iounmap(adapter->ahw.pci_base0);
486}
487
2e9d722d
AC		 488static int
489qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
490{
491 u8 id;
492 u32 ref_count;
493 int i, ret = 1;
494 u32 data = QLCNIC_MGMT_FUNC;
495 void __iomem *priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
496
497 /* If other drivers are not in use set their privilege level */
498 ref_count = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
499 ret = qlcnic_api_lock(adapter);
500 if (ret)
501 goto err_lock;
502 if (QLC_DEV_CLR_REF_CNT(ref_count, adapter->ahw.pci_func))
503 goto err_npar;
504
0e33c664
AC		 505 if (qlcnic_config_npars) {
506 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
507 id = adapter->npars[i].id;
508 if (adapter->npars[i].type != QLCNIC_TYPE_NIC ||
509 id == adapter->ahw.pci_func)
510 continue;
511 data |= (qlcnic_config_npars &
512 QLC_DEV_SET_DRV(0xf, id));
513 }
514 } else {
515 data = readl(priv_op);
516 data = (data & ~QLC_DEV_SET_DRV(0xf, adapter->ahw.pci_func)) |
517 (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
518 adapter->ahw.pci_func));
2e9d722d
AC		 519 }
520 writel(data, priv_op);
2e9d722d
AC		 521err_npar:
522 qlcnic_api_unlock(adapter);
523err_lock:
524 return ret;
525}
526
2e9d722d
AC		 527static u32
528qlcnic_get_driver_mode(struct qlcnic_adapter *adapter)
529{
530 void __iomem *msix_base_addr;
531 void __iomem *priv_op;
532 u32 func;
533 u32 msix_base;
534 u32 op_mode, priv_level;
535
536 /* Determine FW API version */
537 adapter->fw_hal_version = readl(adapter->ahw.pci_base0 + QLCNIC_FW_API);
538 if (adapter->fw_hal_version == ~0) {
539 adapter->nic_ops = &qlcnic_ops;
540 adapter->fw_hal_version = QLCNIC_FW_BASE;
541 adapter->ahw.pci_func = PCI_FUNC(adapter->pdev->devfn);
0e33c664 542 adapter->capabilities = QLCRD32(adapter, CRB_FW_CAPABILITIES_1);
2e9d722d
AC		 543 dev_info(&adapter->pdev->dev,
544 "FW does not support nic partion\n");
545 return adapter->fw_hal_version;
546 }
547
548 /* Find PCI function number */
549 pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
550 msix_base_addr = adapter->ahw.pci_base0 + QLCNIC_MSIX_BASE;
551 msix_base = readl(msix_base_addr);
552 func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE;
553 adapter->ahw.pci_func = func;
554
0e33c664
AC		 555 qlcnic_get_nic_info(adapter, adapter->ahw.pci_func);
556
557 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
558 adapter->nic_ops = &qlcnic_ops;
559 return adapter->fw_hal_version;
560 }
561
2e9d722d
AC		 562 /* Determine function privilege level */
563 priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
564 op_mode = readl(priv_op);
0e33c664 565 if (op_mode == QLC_DEV_DRV_DEFAULT)
2e9d722d 566 priv_level = QLCNIC_MGMT_FUNC;
0e33c664 567 else
2e9d722d
AC		 568 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
569
570 switch (priv_level) {
571 case QLCNIC_MGMT_FUNC:
572 adapter->op_mode = QLCNIC_MGMT_FUNC;
573 adapter->nic_ops = &qlcnic_pf_ops;
0e33c664 574 qlcnic_get_pci_info(adapter);
2e9d722d 575 /* Set privilege level for other functions */
0e33c664 576 qlcnic_set_function_modes(adapter);
2e9d722d
AC		 577 dev_info(&adapter->pdev->dev,
578 "HAL Version: %d, Management function\n",
579 adapter->fw_hal_version);
580 break;
581 case QLCNIC_PRIV_FUNC:
582 adapter->op_mode = QLCNIC_PRIV_FUNC;
583 dev_info(&adapter->pdev->dev,
584 "HAL Version: %d, Privileged function\n",
585 adapter->fw_hal_version);
586 adapter->nic_ops = &qlcnic_pf_ops;
587 break;
9f26f547
AC		 588 case QLCNIC_NON_PRIV_FUNC:
589 adapter->op_mode = QLCNIC_NON_PRIV_FUNC;
590 dev_info(&adapter->pdev->dev,
591 "HAL Version: %d Non Privileged function\n",
592 adapter->fw_hal_version);
593 adapter->nic_ops = &qlcnic_vf_ops;
594 break;
2e9d722d
AC		 595 default:
596 dev_info(&adapter->pdev->dev, "Unknown function mode: %d\n",
597 priv_level);
598 return 0;
599 }
600 return adapter->fw_hal_version;
601}
602
af19b491
AKS		 603static int
604qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
605{
606 void __iomem *mem_ptr0 = NULL;
607 resource_size_t mem_base;
608 unsigned long mem_len, pci_len0 = 0;
609
610 struct pci_dev *pdev = adapter->pdev;
af19b491 611
af19b491
AKS		 612 /* remap phys address */
613 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
614 mem_len = pci_resource_len(pdev, 0);
615
616 if (mem_len == QLCNIC_PCI_2MB_SIZE) {
617
618 mem_ptr0 = pci_ioremap_bar(pdev, 0);
619 if (mem_ptr0 == NULL) {
620 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
621 return -EIO;
622 }
623 pci_len0 = mem_len;
624 } else {
625 return -EIO;
626 }
627
628 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
629
630 adapter->ahw.pci_base0 = mem_ptr0;
631 adapter->ahw.pci_len0 = pci_len0;
632
2e9d722d
AC		 633 if (!qlcnic_get_driver_mode(adapter)) {
634 iounmap(adapter->ahw.pci_base0);
635 return -EIO;
636 }
637
af19b491 638 adapter->ahw.ocm_win_crb = qlcnic_get_ioaddr(adapter,
2e9d722d 639 QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(adapter->ahw.pci_func)));
af19b491
AKS		 640
641 return 0;
642}
643
644static void get_brd_name(struct qlcnic_adapter *adapter, char *name)
645{
646 struct pci_dev *pdev = adapter->pdev;
647 int i, found = 0;
648
649 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
650 if (qlcnic_boards[i].vendor == pdev->vendor &&
651 qlcnic_boards[i].device == pdev->device &&
652 qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
653 qlcnic_boards[i].sub_device == pdev->subsystem_device) {
02f6e46f
SC		 654 sprintf(name, "%pM: %s" ,
655 adapter->mac_addr,
656 qlcnic_boards[i].short_name);
af19b491
AKS		 657 found = 1;
658 break;
659 }
660
661 }
662
663 if (!found)
7f9a0c34 664 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
af19b491
AKS		 665}
666
667static void
668qlcnic_check_options(struct qlcnic_adapter *adapter)
669{
670 u32 fw_major, fw_minor, fw_build;
671 char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
672 char serial_num[32];
673 int i, offset, val;
674 int *ptr32;
675 struct pci_dev *pdev = adapter->pdev;
676
677 adapter->driver_mismatch = 0;
678
679 ptr32 = (int *)&serial_num;
680 offset = QLCNIC_FW_SERIAL_NUM_OFFSET;
681 for (i = 0; i < 8; i++) {
682 if (qlcnic_rom_fast_read(adapter, offset, &val) == -1) {
683 dev_err(&pdev->dev, "error reading board info\n");
684 adapter->driver_mismatch = 1;
685 return;
686 }
687 ptr32[i] = cpu_to_le32(val);
688 offset += sizeof(u32);
689 }
690
691 fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
692 fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
693 fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
694
695 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
696
697 if (adapter->portnum == 0) {
698 get_brd_name(adapter, brd_name);
699
700 pr_info("%s: %s Board Chip rev 0x%x\n",
701 module_name(THIS_MODULE),
702 brd_name, adapter->ahw.revision_id);
703 }
704
251a84c9
AKS		 705 dev_info(&pdev->dev, "firmware v%d.%d.%d\n",
706 fw_major, fw_minor, fw_build);
af19b491 707
af19b491
AKS		 708 adapter->flags &= ~QLCNIC_LRO_ENABLED;
709
710 if (adapter->ahw.port_type == QLCNIC_XGBE) {
711 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
712 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
713 } else if (adapter->ahw.port_type == QLCNIC_GBE) {
714 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
715 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
716 }
717
0e33c664
AC		 718 qlcnic_get_nic_info(adapter, adapter->ahw.pci_func);
719
af19b491
AKS		 720 adapter->msix_supported = !!use_msi_x;
721 adapter->rss_supported = !!use_msi_x;
722
723 adapter->num_txd = MAX_CMD_DESCRIPTORS;
724
af19b491
AKS		 725 adapter->max_rds_rings = 2;
726}
727
728static int
729qlcnic_start_firmware(struct qlcnic_adapter *adapter)
730{
731 int val, err, first_boot;
732
aa5e18c0
SC		 733 err = qlcnic_can_start_firmware(adapter);
734 if (err < 0)
735 return err;
736 else if (!err)
af19b491
AKS		 737 goto wait_init;
738
739 first_boot = QLCRD32(adapter, QLCNIC_CAM_RAM(0x1fc));
740 if (first_boot == 0x55555555)
741 /* This is the first boot after power up */
742 QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
743
4d5bdb38
AKS		 744 if (load_fw_file)
745 qlcnic_request_firmware(adapter);
8f891387 746 else {
747 if (qlcnic_check_flash_fw_ver(adapter))
748 goto err_out;
749
4d5bdb38 750 adapter->fw_type = QLCNIC_FLASH_ROMIMAGE;
8f891387 751 }
af19b491
AKS		 752
753 err = qlcnic_need_fw_reset(adapter);
754 if (err < 0)
755 goto err_out;
756 if (err == 0)
757 goto wait_init;
758
759 if (first_boot != 0x55555555) {
760 QLCWR32(adapter, CRB_CMDPEG_STATE, 0);
900c6cff 761 QLCWR32(adapter, CRB_RCVPEG_STATE, 0);
af19b491
AKS		 762 qlcnic_pinit_from_rom(adapter);
763 msleep(1);
764 }
765
af19b491
AKS		 766 QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0);
767 QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0);
768
769 qlcnic_set_port_mode(adapter);
770
771 err = qlcnic_load_firmware(adapter);
772 if (err)
773 goto err_out;
774
775 qlcnic_release_firmware(adapter);
776
777 val = (_QLCNIC_LINUX_MAJOR << 16)
778 | ((_QLCNIC_LINUX_MINOR << 8))
779 | (_QLCNIC_LINUX_SUBVERSION);
780 QLCWR32(adapter, CRB_DRIVER_VERSION, val);
781
782wait_init:
783 /* Handshake with the card before we register the devices. */
900c6cff 784 err = qlcnic_init_firmware(adapter);
af19b491
AKS		 785 if (err)
786 goto err_out;
787
788 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
6df900e9 789 qlcnic_idc_debug_info(adapter, 1);
af19b491 790
af19b491
AKS		 791 qlcnic_check_options(adapter);
792
0e33c664
AC		 793 if (adapter->flags & QLCNIC_ESWITCH_ENABLED &&
794 adapter->op_mode != QLCNIC_NON_PRIV_FUNC)
795 qlcnic_dev_set_npar_ready(adapter);
2e9d722d 796
af19b491
AKS		 797 adapter->need_fw_reset = 0;
798
a7fc948f
AKS		 799 qlcnic_release_firmware(adapter);
800 return 0;
af19b491
AKS		 801
802err_out:
a7fc948f
AKS		 803 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
804 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
af19b491
AKS		 805 qlcnic_release_firmware(adapter);
806 return err;
807}
808
809static int
810qlcnic_request_irq(struct qlcnic_adapter *adapter)
811{
812 irq_handler_t handler;
813 struct qlcnic_host_sds_ring *sds_ring;
814 int err, ring;
815
816 unsigned long flags = 0;
817 struct net_device *netdev = adapter->netdev;
818 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
819
7eb9855d
AKS		 820 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
821 handler = qlcnic_tmp_intr;
822 if (!QLCNIC_IS_MSI_FAMILY(adapter))
823 flags |= IRQF_SHARED;
824
825 } else {
826 if (adapter->flags & QLCNIC_MSIX_ENABLED)
827 handler = qlcnic_msix_intr;
828 else if (adapter->flags & QLCNIC_MSI_ENABLED)
829 handler = qlcnic_msi_intr;
830 else {
831 flags |= IRQF_SHARED;
832 handler = qlcnic_intr;
833 }
af19b491
AKS		 834 }
835 adapter->irq = netdev->irq;
836
837 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
838 sds_ring = &recv_ctx->sds_rings[ring];
839 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
840 err = request_irq(sds_ring->irq, handler,
841 flags, sds_ring->name, sds_ring);
842 if (err)
843 return err;
844 }
845
846 return 0;
847}
848
849static void
850qlcnic_free_irq(struct qlcnic_adapter *adapter)
851{
852 int ring;
853 struct qlcnic_host_sds_ring *sds_ring;
854
855 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
856
857 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
858 sds_ring = &recv_ctx->sds_rings[ring];
859 free_irq(sds_ring->irq, sds_ring);
860 }
861}
862
863static void
864qlcnic_init_coalesce_defaults(struct qlcnic_adapter *adapter)
865{
866 adapter->coal.flags = QLCNIC_INTR_DEFAULT;
867 adapter->coal.normal.data.rx_time_us =
868 QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
869 adapter->coal.normal.data.rx_packets =
870 QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
871 adapter->coal.normal.data.tx_time_us =
872 QLCNIC_DEFAULT_INTR_COALESCE_TX_TIME_US;
873 adapter->coal.normal.data.tx_packets =
874 QLCNIC_DEFAULT_INTR_COALESCE_TX_PACKETS;
875}
876
877static int
878__qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
879{
880 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
881 return -EIO;
882
883 qlcnic_set_multi(netdev);
884 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
885
886 adapter->ahw.linkup = 0;
887
888 if (adapter->max_sds_rings > 1)
889 qlcnic_config_rss(adapter, 1);
890
891 qlcnic_config_intr_coalesce(adapter);
892
893 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
894 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
895
896 qlcnic_napi_enable(adapter);
897
898 qlcnic_linkevent_request(adapter, 1);
899
900 set_bit(__QLCNIC_DEV_UP, &adapter->state);
901 return 0;
902}
903
904/* Usage: During resume and firmware recovery module.*/
905
906static int
907qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
908{
909 int err = 0;
910
911 rtnl_lock();
912 if (netif_running(netdev))
913 err = __qlcnic_up(adapter, netdev);
914 rtnl_unlock();
915
916 return err;
917}
918
919static void
920__qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
921{
922 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
923 return;
924
925 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
926 return;
927
928 smp_mb();
929 spin_lock(&adapter->tx_clean_lock);
930 netif_carrier_off(netdev);
931 netif_tx_disable(netdev);
932
933 qlcnic_free_mac_list(adapter);
934
935 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
936
937 qlcnic_napi_disable(adapter);
938
939 qlcnic_release_tx_buffers(adapter);
940 spin_unlock(&adapter->tx_clean_lock);
941}
942
943/* Usage: During suspend and firmware recovery module */
944
945static void
946qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
947{
948 rtnl_lock();
949 if (netif_running(netdev))
950 __qlcnic_down(adapter, netdev);
951 rtnl_unlock();
952
953}
954
955static int
956qlcnic_attach(struct qlcnic_adapter *adapter)
957{
958 struct net_device *netdev = adapter->netdev;
959 struct pci_dev *pdev = adapter->pdev;
960 int err, ring;
961 struct qlcnic_host_rds_ring *rds_ring;
962
963 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
964 return 0;
965
af19b491
AKS		 966
967 err = qlcnic_napi_add(adapter, netdev);
968 if (err)
969 return err;
970
971 err = qlcnic_alloc_sw_resources(adapter);
972 if (err) {
973 dev_err(&pdev->dev, "Error in setting sw resources\n");
974 return err;
975 }
976
977 err = qlcnic_alloc_hw_resources(adapter);
978 if (err) {
979 dev_err(&pdev->dev, "Error in setting hw resources\n");
980 goto err_out_free_sw;
981 }
982
983
984 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
985 rds_ring = &adapter->recv_ctx.rds_rings[ring];
986 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
987 }
988
989 err = qlcnic_request_irq(adapter);
990 if (err) {
991 dev_err(&pdev->dev, "failed to setup interrupt\n");
992 goto err_out_free_rxbuf;
993 }
994
995 qlcnic_init_coalesce_defaults(adapter);
996
997 qlcnic_create_sysfs_entries(adapter);
998
999 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
1000 return 0;
1001
1002err_out_free_rxbuf:
1003 qlcnic_release_rx_buffers(adapter);
1004 qlcnic_free_hw_resources(adapter);
1005err_out_free_sw:
1006 qlcnic_free_sw_resources(adapter);
1007 return err;
1008}
1009
1010static void
1011qlcnic_detach(struct qlcnic_adapter *adapter)
1012{
1013 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1014 return;
1015
1016 qlcnic_remove_sysfs_entries(adapter);
1017
1018 qlcnic_free_hw_resources(adapter);
1019 qlcnic_release_rx_buffers(adapter);
1020 qlcnic_free_irq(adapter);
1021 qlcnic_napi_del(adapter);
1022 qlcnic_free_sw_resources(adapter);
1023
1024 adapter->is_up = 0;
1025}
1026
7eb9855d
AKS		 1027void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1028{
1029 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1030 struct qlcnic_host_sds_ring *sds_ring;
1031 int ring;
1032
78ad3892 1033 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
cdaff185
AKS		 1034 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1035 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1036 sds_ring = &adapter->recv_ctx.sds_rings[ring];
1037 qlcnic_disable_int(sds_ring);
1038 }
7eb9855d
AKS		 1039 }
1040
1041 qlcnic_detach(adapter);
1042
1043 adapter->diag_test = 0;
1044 adapter->max_sds_rings = max_sds_rings;
1045
1046 if (qlcnic_attach(adapter))
34ce3626 1047 goto out;
7eb9855d
AKS		 1048
1049 if (netif_running(netdev))
1050 __qlcnic_up(adapter, netdev);
34ce3626 1051out:
7eb9855d
AKS		 1052 netif_device_attach(netdev);
1053}
1054
1055int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1056{
1057 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1058 struct qlcnic_host_sds_ring *sds_ring;
1059 int ring;
1060 int ret;
1061
1062 netif_device_detach(netdev);
1063
1064 if (netif_running(netdev))
1065 __qlcnic_down(adapter, netdev);
1066
1067 qlcnic_detach(adapter);
1068
1069 adapter->max_sds_rings = 1;
1070 adapter->diag_test = test;
1071
1072 ret = qlcnic_attach(adapter);
34ce3626
AKS		 1073 if (ret) {
1074 netif_device_attach(netdev);
7eb9855d 1075 return ret;
34ce3626 1076 }
7eb9855d 1077
cdaff185
AKS		 1078 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1079 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1080 sds_ring = &adapter->recv_ctx.sds_rings[ring];
1081 qlcnic_enable_int(sds_ring);
1082 }
7eb9855d 1083 }
78ad3892 1084 set_bit(__QLCNIC_DEV_UP, &adapter->state);
7eb9855d
AKS		 1085
1086 return 0;
1087}
1088
af19b491
AKS		 1089int
1090qlcnic_reset_context(struct qlcnic_adapter *adapter)
1091{
1092 int err = 0;
1093 struct net_device *netdev = adapter->netdev;
1094
1095 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1096 return -EBUSY;
1097
1098 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1099
1100 netif_device_detach(netdev);
1101
1102 if (netif_running(netdev))
1103 __qlcnic_down(adapter, netdev);
1104
1105 qlcnic_detach(adapter);
1106
1107 if (netif_running(netdev)) {
1108 err = qlcnic_attach(adapter);
1109 if (!err)
34ce3626 1110 __qlcnic_up(adapter, netdev);
af19b491
AKS		 1111 }
1112
1113 netif_device_attach(netdev);
1114 }
1115
af19b491
AKS		 1116 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1117 return err;
1118}
1119
1120static int
1121qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
1bb09fb9 1122 struct net_device *netdev, u8 pci_using_dac)
af19b491
AKS		 1123{
1124 int err;
1125 struct pci_dev *pdev = adapter->pdev;
1126
1127 adapter->rx_csum = 1;
1128 adapter->mc_enabled = 0;
1129 adapter->max_mc_count = 38;
1130
1131 netdev->netdev_ops = &qlcnic_netdev_ops;
ef71ff83 1132 netdev->watchdog_timeo = 5*HZ;
af19b491
AKS		 1133
1134 qlcnic_change_mtu(netdev, netdev->mtu);
1135
1136 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1137
2e9d722d
AC		 1138 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1139 NETIF_F_IPV6_CSUM | NETIF_F_GRO | NETIF_F_TSO | NETIF_F_TSO6);
af19b491 1140
2e9d722d
AC		 1141 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1142 NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6);
af19b491 1143
1bb09fb9 1144 if (pci_using_dac) {
af19b491
AKS		 1145 netdev->features |= NETIF_F_HIGHDMA;
1146 netdev->vlan_features |= NETIF_F_HIGHDMA;
1147 }
1148
1149 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
1150 netdev->features |= (NETIF_F_HW_VLAN_TX);
1151
1152 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1153 netdev->features |= NETIF_F_LRO;
1154
1155 netdev->irq = adapter->msix_entries[0].vector;
1156
1157 INIT_WORK(&adapter->tx_timeout_task, qlcnic_tx_timeout_task);
1158
1159 if (qlcnic_read_mac_addr(adapter))
1160 dev_warn(&pdev->dev, "failed to read mac addr\n");
1161
1162 netif_carrier_off(netdev);
1163 netif_stop_queue(netdev);
1164
1165 err = register_netdev(netdev);
1166 if (err) {
1167 dev_err(&pdev->dev, "failed to register net device\n");
1168 return err;
1169 }
1170
1171 return 0;
1172}
1173
1bb09fb9
AKS		 1174static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *pci_using_dac)
1175{
1176 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1177 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1178 *pci_using_dac = 1;
1179 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1180 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1181 *pci_using_dac = 0;
1182 else {
1183 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1184 return -EIO;
1185 }
1186
1187 return 0;
1188}
1189
af19b491
AKS		 1190static int __devinit
1191qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1192{
1193 struct net_device *netdev = NULL;
1194 struct qlcnic_adapter *adapter = NULL;
1195 int err;
af19b491 1196 uint8_t revision_id;
1bb09fb9 1197 uint8_t pci_using_dac;
af19b491
AKS		 1198
1199 err = pci_enable_device(pdev);
1200 if (err)
1201 return err;
1202
1203 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1204 err = -ENODEV;
1205 goto err_out_disable_pdev;
1206 }
1207
1bb09fb9
AKS		 1208 err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1209 if (err)
1210 goto err_out_disable_pdev;
1211
af19b491
AKS		 1212 err = pci_request_regions(pdev, qlcnic_driver_name);
1213 if (err)
1214 goto err_out_disable_pdev;
1215
1216 pci_set_master(pdev);
1217
1218 netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1219 if (!netdev) {
1220 dev_err(&pdev->dev, "failed to allocate net_device\n");
1221 err = -ENOMEM;
1222 goto err_out_free_res;
1223 }
1224
1225 SET_NETDEV_DEV(netdev, &pdev->dev);
1226
1227 adapter = netdev_priv(netdev);
1228 adapter->netdev = netdev;
1229 adapter->pdev = pdev;
6df900e9 1230 adapter->dev_rst_time = jiffies;
af19b491
AKS		 1231
1232 revision_id = pdev->revision;
1233 adapter->ahw.revision_id = revision_id;
1234
1235 rwlock_init(&adapter->ahw.crb_lock);
1236 mutex_init(&adapter->ahw.mem_lock);
1237
1238 spin_lock_init(&adapter->tx_clean_lock);
1239 INIT_LIST_HEAD(&adapter->mac_list);
1240
1241 err = qlcnic_setup_pci_map(adapter);
1242 if (err)
1243 goto err_out_free_netdev;
1244
1245 /* This will be reset for mezz cards */
2e9d722d 1246 adapter->portnum = adapter->ahw.pci_func;
af19b491
AKS		 1247
1248 err = qlcnic_get_board_info(adapter);
1249 if (err) {
1250 dev_err(&pdev->dev, "Error getting board config info.\n");
1251 goto err_out_iounmap;
1252 }
1253
02f6e46f
SC		 1254 if (qlcnic_read_mac_addr(adapter))
1255 dev_warn(&pdev->dev, "failed to read mac addr\n");
1256
b3a24649
SC		 1257 if (qlcnic_setup_idc_param(adapter))
1258 goto err_out_iounmap;
af19b491 1259
9f26f547 1260 err = adapter->nic_ops->start_firmware(adapter);
a7fc948f
AKS		 1261 if (err) {
1262 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
af19b491 1263 goto err_out_decr_ref;
a7fc948f 1264 }
af19b491 1265
af19b491
AKS		 1266 qlcnic_clear_stats(adapter);
1267
1268 qlcnic_setup_intr(adapter);
1269
1bb09fb9 1270 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
af19b491
AKS		 1271 if (err)
1272 goto err_out_disable_msi;
1273
1274 pci_set_drvdata(pdev, adapter);
1275
1276 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1277
1278 switch (adapter->ahw.port_type) {
1279 case QLCNIC_GBE:
1280 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1281 adapter->netdev->name);
1282 break;
1283 case QLCNIC_XGBE:
1284 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1285 adapter->netdev->name);
1286 break;
1287 }
1288
1289 qlcnic_create_diag_entries(adapter);
1290
1291 return 0;
1292
1293err_out_disable_msi:
1294 qlcnic_teardown_intr(adapter);
1295
1296err_out_decr_ref:
1297 qlcnic_clr_all_drv_state(adapter);
1298
1299err_out_iounmap:
1300 qlcnic_cleanup_pci_map(adapter);
1301
1302err_out_free_netdev:
1303 free_netdev(netdev);
1304
1305err_out_free_res:
1306 pci_release_regions(pdev);
1307
1308err_out_disable_pdev:
1309 pci_set_drvdata(pdev, NULL);
1310 pci_disable_device(pdev);
1311 return err;
1312}
1313
1314static void __devexit qlcnic_remove(struct pci_dev *pdev)
1315{
1316 struct qlcnic_adapter *adapter;
1317 struct net_device *netdev;
1318
1319 adapter = pci_get_drvdata(pdev);
1320 if (adapter == NULL)
1321 return;
1322
1323 netdev = adapter->netdev;
1324
1325 qlcnic_cancel_fw_work(adapter);
1326
1327 unregister_netdev(netdev);
1328
1329 cancel_work_sync(&adapter->tx_timeout_task);
1330
1331 qlcnic_detach(adapter);
1332
2e9d722d
AC		 1333 if (adapter->npars != NULL)
1334 kfree(adapter->npars);
1335 if (adapter->eswitch != NULL)
1336 kfree(adapter->eswitch);
1337
af19b491
AKS		 1338 qlcnic_clr_all_drv_state(adapter);
1339
1340 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1341
1342 qlcnic_teardown_intr(adapter);
1343
1344 qlcnic_remove_diag_entries(adapter);
1345
1346 qlcnic_cleanup_pci_map(adapter);
1347
1348 qlcnic_release_firmware(adapter);
1349
1350 pci_release_regions(pdev);
1351 pci_disable_device(pdev);
1352 pci_set_drvdata(pdev, NULL);
1353
1354 free_netdev(netdev);
1355}
1356static int __qlcnic_shutdown(struct pci_dev *pdev)
1357{
1358 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1359 struct net_device *netdev = adapter->netdev;
1360 int retval;
1361
1362 netif_device_detach(netdev);
1363
1364 qlcnic_cancel_fw_work(adapter);
1365
1366 if (netif_running(netdev))
1367 qlcnic_down(adapter, netdev);
1368
1369 cancel_work_sync(&adapter->tx_timeout_task);
1370
1371 qlcnic_detach(adapter);
1372
1373 qlcnic_clr_all_drv_state(adapter);
1374
1375 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1376
1377 retval = pci_save_state(pdev);
1378 if (retval)
1379 return retval;
1380
1381 if (qlcnic_wol_supported(adapter)) {
1382 pci_enable_wake(pdev, PCI_D3cold, 1);
1383 pci_enable_wake(pdev, PCI_D3hot, 1);
1384 }
1385
1386 return 0;
1387}
1388
1389static void qlcnic_shutdown(struct pci_dev *pdev)
1390{
1391 if (__qlcnic_shutdown(pdev))
1392 return;
1393
1394 pci_disable_device(pdev);
1395}
1396
1397#ifdef CONFIG_PM
1398static int
1399qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1400{
1401 int retval;
1402
1403 retval = __qlcnic_shutdown(pdev);
1404 if (retval)
1405 return retval;
1406
1407 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1408 return 0;
1409}
1410
1411static int
1412qlcnic_resume(struct pci_dev *pdev)
1413{
1414 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1415 struct net_device *netdev = adapter->netdev;
1416 int err;
1417
1418 err = pci_enable_device(pdev);
1419 if (err)
1420 return err;
1421
1422 pci_set_power_state(pdev, PCI_D0);
1423 pci_set_master(pdev);
1424 pci_restore_state(pdev);
1425
9f26f547 1426 err = adapter->nic_ops->start_firmware(adapter);
af19b491
AKS		 1427 if (err) {
1428 dev_err(&pdev->dev, "failed to start firmware\n");
1429 return err;
1430 }
1431
1432 if (netif_running(netdev)) {
1433 err = qlcnic_attach(adapter);
1434 if (err)
1435 goto err_out;
1436
1437 err = qlcnic_up(adapter, netdev);
1438 if (err)
1439 goto err_out_detach;
1440
1441
1442 qlcnic_config_indev_addr(netdev, NETDEV_UP);
1443 }
1444
1445 netif_device_attach(netdev);
1446 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1447 return 0;
1448
1449err_out_detach:
1450 qlcnic_detach(adapter);
1451err_out:
1452 qlcnic_clr_all_drv_state(adapter);
34ce3626 1453 netif_device_attach(netdev);
af19b491
AKS		 1454 return err;
1455}
1456#endif
1457
1458static int qlcnic_open(struct net_device *netdev)
1459{
1460 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1461 int err;
1462
1463 if (adapter->driver_mismatch)
1464 return -EIO;
1465
1466 err = qlcnic_attach(adapter);
1467 if (err)
1468 return err;
1469
1470 err = __qlcnic_up(adapter, netdev);
1471 if (err)
1472 goto err_out;
1473
1474 netif_start_queue(netdev);
1475
1476 return 0;
1477
1478err_out:
1479 qlcnic_detach(adapter);
1480 return err;
1481}
1482
1483/*
1484 * qlcnic_close - Disables a network interface entry point
1485 */
1486static int qlcnic_close(struct net_device *netdev)
1487{
1488 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1489
1490 __qlcnic_down(adapter, netdev);
1491 return 0;
1492}
1493
1494static void
1495qlcnic_tso_check(struct net_device *netdev,
1496 struct qlcnic_host_tx_ring *tx_ring,
1497 struct cmd_desc_type0 *first_desc,
1498 struct sk_buff *skb)
1499{
1500 u8 opcode = TX_ETHER_PKT;
1501 __be16 protocol = skb->protocol;
1502 u16 flags = 0, vid = 0;
af19b491
AKS		 1503 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1504 struct cmd_desc_type0 *hwdesc;
1505 struct vlan_ethhdr *vh;
8bfe8b91 1506 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2e9d722d 1507 u32 producer = tx_ring->producer;
af19b491
AKS		 1508
1509 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1510
1511 vh = (struct vlan_ethhdr *)skb->data;
1512 protocol = vh->h_vlan_encapsulated_proto;
1513 flags = FLAGS_VLAN_TAGGED;
1514
1515 } else if (vlan_tx_tag_present(skb)) {
1516
1517 flags = FLAGS_VLAN_OOB;
1518 vid = vlan_tx_tag_get(skb);
1519 qlcnic_set_tx_vlan_tci(first_desc, vid);
1520 vlan_oob = 1;
1521 }
1522
2e9d722d
AC		 1523 if (*(skb->data) & BIT_0) {
1524 flags |= BIT_0;
1525 memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN);
1526 }
1527
af19b491
AKS		 1528 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1529 skb_shinfo(skb)->gso_size > 0) {
1530
1531 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1532
1533 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1534 first_desc->total_hdr_length = hdr_len;
1535 if (vlan_oob) {
1536 first_desc->total_hdr_length += VLAN_HLEN;
1537 first_desc->tcp_hdr_offset = VLAN_HLEN;
1538 first_desc->ip_hdr_offset = VLAN_HLEN;
1539 /* Only in case of TSO on vlan device */
1540 flags |= FLAGS_VLAN_TAGGED;
1541 }
1542
1543 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1544 TX_TCP_LSO6 : TX_TCP_LSO;
1545 tso = 1;
1546
1547 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1548 u8 l4proto;
1549
1550 if (protocol == cpu_to_be16(ETH_P_IP)) {
1551 l4proto = ip_hdr(skb)->protocol;
1552
1553 if (l4proto == IPPROTO_TCP)
1554 opcode = TX_TCP_PKT;
1555 else if (l4proto == IPPROTO_UDP)
1556 opcode = TX_UDP_PKT;
1557 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1558 l4proto = ipv6_hdr(skb)->nexthdr;
1559
1560 if (l4proto == IPPROTO_TCP)
1561 opcode = TX_TCPV6_PKT;
1562 else if (l4proto == IPPROTO_UDP)
1563 opcode = TX_UDPV6_PKT;
1564 }
1565 }
1566
1567 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1568 first_desc->ip_hdr_offset += skb_network_offset(skb);
1569 qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
1570
1571 if (!tso)
1572 return;
1573
1574 /* For LSO, we need to copy the MAC/IP/TCP headers into
1575 * the descriptor ring
1576 */
af19b491
AKS		 1577 copied = 0;
1578 offset = 2;
1579
1580 if (vlan_oob) {
1581 /* Create a TSO vlan header template for firmware */
1582
1583 hwdesc = &tx_ring->desc_head[producer];
1584 tx_ring->cmd_buf_arr[producer].skb = NULL;
1585
1586 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1587 hdr_len + VLAN_HLEN);
1588
1589 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1590 skb_copy_from_linear_data(skb, vh, 12);
1591 vh->h_vlan_proto = htons(ETH_P_8021Q);
1592 vh->h_vlan_TCI = htons(vid);
1593 skb_copy_from_linear_data_offset(skb, 12,
1594 (char *)vh + 16, copy_len - 16);
1595
1596 copied = copy_len - VLAN_HLEN;
1597 offset = 0;
1598
1599 producer = get_next_index(producer, tx_ring->num_desc);
1600 }
1601
1602 while (copied < hdr_len) {
1603
1604 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1605 (hdr_len - copied));
1606
1607 hwdesc = &tx_ring->desc_head[producer];
1608 tx_ring->cmd_buf_arr[producer].skb = NULL;
1609
1610 skb_copy_from_linear_data_offset(skb, copied,
1611 (char *)hwdesc + offset, copy_len);
1612
1613 copied += copy_len;
1614 offset = 0;
1615
1616 producer = get_next_index(producer, tx_ring->num_desc);
1617 }
1618
1619 tx_ring->producer = producer;
1620 barrier();
8bfe8b91 1621 adapter->stats.lso_frames++;
af19b491
AKS		 1622}
1623
1624static int
1625qlcnic_map_tx_skb(struct pci_dev *pdev,
1626 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
1627{
1628 struct qlcnic_skb_frag *nf;
1629 struct skb_frag_struct *frag;
1630 int i, nr_frags;
1631 dma_addr_t map;
1632
1633 nr_frags = skb_shinfo(skb)->nr_frags;
1634 nf = &pbuf->frag_array[0];
1635
1636 map = pci_map_single(pdev, skb->data,
1637 skb_headlen(skb), PCI_DMA_TODEVICE);
1638 if (pci_dma_mapping_error(pdev, map))
1639 goto out_err;
1640
1641 nf->dma = map;
1642 nf->length = skb_headlen(skb);
1643
1644 for (i = 0; i < nr_frags; i++) {
1645 frag = &skb_shinfo(skb)->frags[i];
1646 nf = &pbuf->frag_array[i+1];
1647
1648 map = pci_map_page(pdev, frag->page, frag->page_offset,
1649 frag->size, PCI_DMA_TODEVICE);
1650 if (pci_dma_mapping_error(pdev, map))
1651 goto unwind;
1652
1653 nf->dma = map;
1654 nf->length = frag->size;
1655 }
1656
1657 return 0;
1658
1659unwind:
1660 while (--i >= 0) {
1661 nf = &pbuf->frag_array[i+1];
1662 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1663 }
1664
1665 nf = &pbuf->frag_array[0];
1666 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1667
1668out_err:
1669 return -ENOMEM;
1670}
1671
1672static inline void
1673qlcnic_clear_cmddesc(u64 *desc)
1674{
1675 desc[0] = 0ULL;
1676 desc[2] = 0ULL;
1677}
1678
cdaff185 1679netdev_tx_t
af19b491
AKS		 1680qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1681{
1682 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1683 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
1684 struct qlcnic_cmd_buffer *pbuf;
1685 struct qlcnic_skb_frag *buffrag;
1686 struct cmd_desc_type0 *hwdesc, *first_desc;
1687 struct pci_dev *pdev;
1688 int i, k;
1689
1690 u32 producer;
1691 int frag_count, no_of_desc;
1692 u32 num_txd = tx_ring->num_desc;
1693
780ab790
AKS		 1694 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
1695 netif_stop_queue(netdev);
1696 return NETDEV_TX_BUSY;
1697 }
1698
af19b491
AKS		 1699 frag_count = skb_shinfo(skb)->nr_frags + 1;
1700
1701 /* 4 fragments per cmd des */
1702 no_of_desc = (frag_count + 3) >> 2;
1703
ef71ff83 1704 if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
af19b491 1705 netif_stop_queue(netdev);
ef71ff83
RB		 1706 smp_mb();
1707 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
1708 netif_start_queue(netdev);
1709 else {
1710 adapter->stats.xmit_off++;
1711 return NETDEV_TX_BUSY;
1712 }
af19b491
AKS		 1713 }
1714
1715 producer = tx_ring->producer;
1716 pbuf = &tx_ring->cmd_buf_arr[producer];
1717
1718 pdev = adapter->pdev;
1719
8ae6df97
AKS		 1720 if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
1721 adapter->stats.tx_dma_map_error++;
af19b491 1722 goto drop_packet;
8ae6df97 1723 }
af19b491
AKS		 1724
1725 pbuf->skb = skb;
1726 pbuf->frag_count = frag_count;
1727
1728 first_desc = hwdesc = &tx_ring->desc_head[producer];
1729 qlcnic_clear_cmddesc((u64 *)hwdesc);
1730
1731 qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
1732 qlcnic_set_tx_port(first_desc, adapter->portnum);
1733
1734 for (i = 0; i < frag_count; i++) {
1735
1736 k = i % 4;
1737
1738 if ((k == 0) && (i > 0)) {
1739 /* move to next desc.*/
1740 producer = get_next_index(producer, num_txd);
1741 hwdesc = &tx_ring->desc_head[producer];
1742 qlcnic_clear_cmddesc((u64 *)hwdesc);
1743 tx_ring->cmd_buf_arr[producer].skb = NULL;
1744 }
1745
1746 buffrag = &pbuf->frag_array[i];
1747
1748 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
1749 switch (k) {
1750 case 0:
1751 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1752 break;
1753 case 1:
1754 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
1755 break;
1756 case 2:
1757 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
1758 break;
1759 case 3:
1760 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
1761 break;
1762 }
1763 }
1764
1765 tx_ring->producer = get_next_index(producer, num_txd);
1766
1767 qlcnic_tso_check(netdev, tx_ring, first_desc, skb);
1768
1769 qlcnic_update_cmd_producer(adapter, tx_ring);
1770
1771 adapter->stats.txbytes += skb->len;
1772 adapter->stats.xmitcalled++;
1773
1774 return NETDEV_TX_OK;
1775
1776drop_packet:
1777 adapter->stats.txdropped++;
1778 dev_kfree_skb_any(skb);
1779 return NETDEV_TX_OK;
1780}
1781
1782static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
1783{
1784 struct net_device *netdev = adapter->netdev;
1785 u32 temp, temp_state, temp_val;
1786 int rv = 0;
1787
1788 temp = QLCRD32(adapter, CRB_TEMP_STATE);
1789
1790 temp_state = qlcnic_get_temp_state(temp);
1791 temp_val = qlcnic_get_temp_val(temp);
1792
1793 if (temp_state == QLCNIC_TEMP_PANIC) {
1794 dev_err(&netdev->dev,
1795 "Device temperature %d degrees C exceeds"
1796 " maximum allowed. Hardware has been shut down.\n",
1797 temp_val);
1798 rv = 1;
1799 } else if (temp_state == QLCNIC_TEMP_WARN) {
1800 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
1801 dev_err(&netdev->dev,
1802 "Device temperature %d degrees C "
1803 "exceeds operating range."
1804 " Immediate action needed.\n",
1805 temp_val);
1806 }
1807 } else {
1808 if (adapter->temp == QLCNIC_TEMP_WARN) {
1809 dev_info(&netdev->dev,
1810 "Device temperature is now %d degrees C"
1811 " in normal range.\n", temp_val);
1812 }
1813 }
1814 adapter->temp = temp_state;
1815 return rv;
1816}
1817
1818void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
1819{
1820 struct net_device *netdev = adapter->netdev;
1821
1822 if (adapter->ahw.linkup && !linkup) {
1823 dev_info(&netdev->dev, "NIC Link is down\n");
1824 adapter->ahw.linkup = 0;
1825 if (netif_running(netdev)) {
1826 netif_carrier_off(netdev);
1827 netif_stop_queue(netdev);
1828 }
1829 } else if (!adapter->ahw.linkup && linkup) {
1830 dev_info(&netdev->dev, "NIC Link is up\n");
1831 adapter->ahw.linkup = 1;
1832 if (netif_running(netdev)) {
1833 netif_carrier_on(netdev);
1834 netif_wake_queue(netdev);
1835 }
1836 }
1837}
1838
1839static void qlcnic_tx_timeout(struct net_device *netdev)
1840{
1841 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1842
1843 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
1844 return;
1845
1846 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
1847 schedule_work(&adapter->tx_timeout_task);
1848}
1849
1850static void qlcnic_tx_timeout_task(struct work_struct *work)
1851{
1852 struct qlcnic_adapter *adapter =
1853 container_of(work, struct qlcnic_adapter, tx_timeout_task);
1854
1855 if (!netif_running(adapter->netdev))
1856 return;
1857
1858 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1859 return;
1860
1861 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
1862 goto request_reset;
1863
1864 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1865 if (!qlcnic_reset_context(adapter)) {
1866 adapter->netdev->trans_start = jiffies;
1867 return;
1868
1869 /* context reset failed, fall through for fw reset */
1870 }
1871
1872request_reset:
1873 adapter->need_fw_reset = 1;
1874 clear_bit(__QLCNIC_RESETTING, &adapter->state);
65b5b420 1875 QLCDB(adapter, DRV, "Resetting adapter\n");
af19b491
AKS		 1876}
1877
1878static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
1879{
1880 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1881 struct net_device_stats *stats = &netdev->stats;
1882
1883 memset(stats, 0, sizeof(*stats));
1884
1885 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
1886 stats->tx_packets = adapter->stats.xmitfinished;
7e382594 1887 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
af19b491
AKS		 1888 stats->tx_bytes = adapter->stats.txbytes;
1889 stats->rx_dropped = adapter->stats.rxdropped;
1890 stats->tx_dropped = adapter->stats.txdropped;
1891
1892 return stats;
1893}
1894
7eb9855d 1895static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
af19b491 1896{
af19b491
AKS		 1897 u32 status;
1898
1899 status = readl(adapter->isr_int_vec);
1900
1901 if (!(status & adapter->int_vec_bit))
1902 return IRQ_NONE;
1903
1904 /* check interrupt state machine, to be sure */
1905 status = readl(adapter->crb_int_state_reg);
1906 if (!ISR_LEGACY_INT_TRIGGERED(status))
1907 return IRQ_NONE;
1908
1909 writel(0xffffffff, adapter->tgt_status_reg);
1910 /* read twice to ensure write is flushed */
1911 readl(adapter->isr_int_vec);
1912 readl(adapter->isr_int_vec);
1913
7eb9855d
AKS		 1914 return IRQ_HANDLED;
1915}
1916
1917static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
1918{
1919 struct qlcnic_host_sds_ring *sds_ring = data;
1920 struct qlcnic_adapter *adapter = sds_ring->adapter;
1921
1922 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1923 goto done;
1924 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
1925 writel(0xffffffff, adapter->tgt_status_reg);
1926 goto done;
1927 }
1928
1929 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
1930 return IRQ_NONE;
1931
1932done:
1933 adapter->diag_cnt++;
1934 qlcnic_enable_int(sds_ring);
1935 return IRQ_HANDLED;
1936}
1937
1938static irqreturn_t qlcnic_intr(int irq, void *data)
1939{
1940 struct qlcnic_host_sds_ring *sds_ring = data;
1941 struct qlcnic_adapter *adapter = sds_ring->adapter;
1942
1943 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
1944 return IRQ_NONE;
1945
af19b491
AKS		 1946 napi_schedule(&sds_ring->napi);
1947
1948 return IRQ_HANDLED;
1949}
1950
1951static irqreturn_t qlcnic_msi_intr(int irq, void *data)
1952{
1953 struct qlcnic_host_sds_ring *sds_ring = data;
1954 struct qlcnic_adapter *adapter = sds_ring->adapter;
1955
1956 /* clear interrupt */
1957 writel(0xffffffff, adapter->tgt_status_reg);
1958
1959 napi_schedule(&sds_ring->napi);
1960 return IRQ_HANDLED;
1961}
1962
1963static irqreturn_t qlcnic_msix_intr(int irq, void *data)
1964{
1965 struct qlcnic_host_sds_ring *sds_ring = data;
1966
1967 napi_schedule(&sds_ring->napi);
1968 return IRQ_HANDLED;
1969}
1970
1971static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
1972{
1973 u32 sw_consumer, hw_consumer;
1974 int count = 0, i;
1975 struct qlcnic_cmd_buffer *buffer;
1976 struct pci_dev *pdev = adapter->pdev;
1977 struct net_device *netdev = adapter->netdev;
1978 struct qlcnic_skb_frag *frag;
1979 int done;
1980 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
1981
1982 if (!spin_trylock(&adapter->tx_clean_lock))
1983 return 1;
1984
1985 sw_consumer = tx_ring->sw_consumer;
1986 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1987
1988 while (sw_consumer != hw_consumer) {
1989 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
1990 if (buffer->skb) {
1991 frag = &buffer->frag_array[0];
1992 pci_unmap_single(pdev, frag->dma, frag->length,
1993 PCI_DMA_TODEVICE);
1994 frag->dma = 0ULL;
1995 for (i = 1; i < buffer->frag_count; i++) {
1996 frag++;
1997 pci_unmap_page(pdev, frag->dma, frag->length,
1998 PCI_DMA_TODEVICE);
1999 frag->dma = 0ULL;
2000 }
2001
2002 adapter->stats.xmitfinished++;
2003 dev_kfree_skb_any(buffer->skb);
2004 buffer->skb = NULL;
2005 }
2006
2007 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
2008 if (++count >= MAX_STATUS_HANDLE)
2009 break;
2010 }
2011
2012 if (count && netif_running(netdev)) {
2013 tx_ring->sw_consumer = sw_consumer;
2014
2015 smp_mb();
2016
2017 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
af19b491
AKS		 2018 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
2019 netif_wake_queue(netdev);
8bfe8b91 2020 adapter->stats.xmit_on++;
af19b491 2021 }
af19b491 2022 }
ef71ff83 2023 adapter->tx_timeo_cnt = 0;
af19b491
AKS		 2024 }
2025 /*
2026 * If everything is freed up to consumer then check if the ring is full
2027 * If the ring is full then check if more needs to be freed and
2028 * schedule the call back again.
2029 *
2030 * This happens when there are 2 CPUs. One could be freeing and the
2031 * other filling it. If the ring is full when we get out of here and
2032 * the card has already interrupted the host then the host can miss the
2033 * interrupt.
2034 *
2035 * There is still a possible race condition and the host could miss an
2036 * interrupt. The card has to take care of this.
2037 */
2038 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2039 done = (sw_consumer == hw_consumer);
2040 spin_unlock(&adapter->tx_clean_lock);
2041
2042 return done;
2043}
2044
2045static int qlcnic_poll(struct napi_struct *napi, int budget)
2046{
2047 struct qlcnic_host_sds_ring *sds_ring =
2048 container_of(napi, struct qlcnic_host_sds_ring, napi);
2049
2050 struct qlcnic_adapter *adapter = sds_ring->adapter;
2051
2052 int tx_complete;
2053 int work_done;
2054
2055 tx_complete = qlcnic_process_cmd_ring(adapter);
2056
2057 work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2058
2059 if ((work_done < budget) && tx_complete) {
2060 napi_complete(&sds_ring->napi);
2061 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2062 qlcnic_enable_int(sds_ring);
2063 }
2064
2065 return work_done;
2066}
2067
8f891387 2068static int qlcnic_rx_poll(struct napi_struct *napi, int budget)
2069{
2070 struct qlcnic_host_sds_ring *sds_ring =
2071 container_of(napi, struct qlcnic_host_sds_ring, napi);
2072
2073 struct qlcnic_adapter *adapter = sds_ring->adapter;
2074 int work_done;
2075
2076 work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2077
2078 if (work_done < budget) {
2079 napi_complete(&sds_ring->napi);
2080 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2081 qlcnic_enable_int(sds_ring);
2082 }
2083
2084 return work_done;
2085}
2086
af19b491
AKS		 2087#ifdef CONFIG_NET_POLL_CONTROLLER
2088static void qlcnic_poll_controller(struct net_device *netdev)
2089{
2090 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2091 disable_irq(adapter->irq);
2092 qlcnic_intr(adapter->irq, adapter);
2093 enable_irq(adapter->irq);
2094}
2095#endif
2096
6df900e9
SC		 2097static void
2098qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2099{
2100 u32 val;
2101
2102 val = adapter->portnum & 0xf;
2103 val |= encoding << 7;
2104 val |= (jiffies - adapter->dev_rst_time) << 8;
2105
2106 QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2107 adapter->dev_rst_time = jiffies;
2108}
2109
ade91f8e
AKS		 2110static int
2111qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
af19b491
AKS		 2112{
2113 u32 val;
2114
2115 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2116 state != QLCNIC_DEV_NEED_QUISCENT);
2117
2118 if (qlcnic_api_lock(adapter))
ade91f8e 2119 return -EIO;
af19b491
AKS		 2120
2121 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2122
2123 if (state == QLCNIC_DEV_NEED_RESET)
6d2a4724 2124 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
af19b491 2125 else if (state == QLCNIC_DEV_NEED_QUISCENT)
6d2a4724 2126 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
af19b491
AKS		 2127
2128 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2129
2130 qlcnic_api_unlock(adapter);
ade91f8e
AKS		 2131
2132 return 0;
af19b491
AKS		 2133}
2134
1b95a839
AKS		 2135static int
2136qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2137{
2138 u32 val;
2139
2140 if (qlcnic_api_lock(adapter))
2141 return -EBUSY;
2142
2143 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2144 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
1b95a839
AKS		 2145 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2146
2147 qlcnic_api_unlock(adapter);
2148
2149 return 0;
2150}
2151
af19b491
AKS		 2152static void
2153qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter)
2154{
2155 u32 val;
2156
2157 if (qlcnic_api_lock(adapter))
2158 goto err;
2159
2160 val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
6d2a4724 2161 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
af19b491
AKS		 2162 QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val);
2163
2164 if (!(val & 0x11111111))
2165 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
2166
2167 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2168 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
af19b491
AKS		 2169 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2170
2171 qlcnic_api_unlock(adapter);
2172err:
2173 adapter->fw_fail_cnt = 0;
2174 clear_bit(__QLCNIC_START_FW, &adapter->state);
2175 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2176}
2177
f73dfc50 2178/* Grab api lock, before checking state */
af19b491
AKS		 2179static int
2180qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2181{
2182 int act, state;
2183
2184 state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2185 act = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
2186
2187 if (((state & 0x11111111) == (act & 0x11111111)) ||
2188 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2189 return 0;
2190 else
2191 return 1;
2192}
2193
96f8118c
SC		 2194static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2195{
2196 u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2197
2198 if (val != QLCNIC_DRV_IDC_VER) {
2199 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2200 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2201 }
2202
2203 return 0;
2204}
2205
af19b491
AKS		 2206static int
2207qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2208{
2209 u32 val, prev_state;
aa5e18c0 2210 u8 dev_init_timeo = adapter->dev_init_timeo;
6d2a4724 2211 u8 portnum = adapter->portnum;
96f8118c 2212 u8 ret;
af19b491 2213
f73dfc50
AKS		 2214 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2215 return 1;
2216
af19b491
AKS		 2217 if (qlcnic_api_lock(adapter))
2218 return -1;
2219
2220 val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
6d2a4724
AKS		 2221 if (!(val & (1 << (portnum * 4)))) {
2222 QLC_DEV_SET_REF_CNT(val, portnum);
af19b491 2223 QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val);
af19b491
AKS		 2224 }
2225
2226 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
65b5b420 2227 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
af19b491
AKS		 2228
2229 switch (prev_state) {
2230 case QLCNIC_DEV_COLD:
bbd8c6a4 2231 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
96f8118c 2232 QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER);
6df900e9 2233 qlcnic_idc_debug_info(adapter, 0);
af19b491
AKS		 2234 qlcnic_api_unlock(adapter);
2235 return 1;
2236
2237 case QLCNIC_DEV_READY:
96f8118c 2238 ret = qlcnic_check_idc_ver(adapter);
af19b491 2239 qlcnic_api_unlock(adapter);
96f8118c 2240 return ret;
af19b491
AKS		 2241
2242 case QLCNIC_DEV_NEED_RESET:
2243 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2244 QLC_DEV_SET_RST_RDY(val, portnum);
af19b491
AKS		 2245 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2246 break;
2247
2248 case QLCNIC_DEV_NEED_QUISCENT:
2249 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2250 QLC_DEV_SET_QSCNT_RDY(val, portnum);
af19b491
AKS		 2251 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2252 break;
2253
2254 case QLCNIC_DEV_FAILED:
a7fc948f 2255 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
af19b491
AKS		 2256 qlcnic_api_unlock(adapter);
2257 return -1;
bbd8c6a4
AKS		 2258
2259 case QLCNIC_DEV_INITIALIZING:
2260 case QLCNIC_DEV_QUISCENT:
2261 break;
af19b491
AKS		 2262 }
2263
2264 qlcnic_api_unlock(adapter);
aa5e18c0
SC		 2265
2266 do {
af19b491 2267 msleep(1000);
a5e463d0
SC		 2268 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2269
2270 if (prev_state == QLCNIC_DEV_QUISCENT)
2271 continue;
2272 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
af19b491 2273
65b5b420
AKS		 2274 if (!dev_init_timeo) {
2275 dev_err(&adapter->pdev->dev,
2276 "Waiting for device to initialize timeout\n");
af19b491 2277 return -1;
65b5b420 2278 }
af19b491
AKS		 2279
2280 if (qlcnic_api_lock(adapter))
2281 return -1;
2282
2283 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2284 QLC_DEV_CLR_RST_QSCNT(val, portnum);
af19b491
AKS		 2285 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2286
96f8118c 2287 ret = qlcnic_check_idc_ver(adapter);
af19b491
AKS		 2288 qlcnic_api_unlock(adapter);
2289
96f8118c 2290 return ret;
af19b491
AKS		 2291}
2292
2293static void
2294qlcnic_fwinit_work(struct work_struct *work)
2295{
2296 struct qlcnic_adapter *adapter = container_of(work,
2297 struct qlcnic_adapter, fw_work.work);
9f26f547 2298 u32 dev_state = 0xf, npar_state;
af19b491 2299
f73dfc50
AKS		 2300 if (qlcnic_api_lock(adapter))
2301 goto err_ret;
af19b491 2302
a5e463d0
SC		 2303 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2304 if (dev_state == QLCNIC_DEV_QUISCENT) {
2305 qlcnic_api_unlock(adapter);
2306 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2307 FW_POLL_DELAY * 2);
2308 return;
2309 }
2310
9f26f547
AC		 2311 if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
2312 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2313 if (npar_state == QLCNIC_DEV_NPAR_RDY) {
2314 qlcnic_api_unlock(adapter);
2315 goto wait_npar;
2316 } else {
2317 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2318 FW_POLL_DELAY);
2319 qlcnic_api_unlock(adapter);
2320 return;
2321 }
2322 }
2323
f73dfc50
AKS		 2324 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2325 dev_err(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2326 adapter->reset_ack_timeo);
2327 goto skip_ack_check;
2328 }
2329
2330 if (!qlcnic_check_drv_state(adapter)) {
2331skip_ack_check:
2332 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
a5e463d0
SC		 2333
2334 if (dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2335 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2336 QLCNIC_DEV_QUISCENT);
2337 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2338 FW_POLL_DELAY * 2);
2339 QLCDB(adapter, DRV, "Quiscing the driver\n");
6df900e9
SC		 2340 qlcnic_idc_debug_info(adapter, 0);
2341
a5e463d0
SC		 2342 qlcnic_api_unlock(adapter);
2343 return;
2344 }
2345
f73dfc50
AKS		 2346 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2347 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2348 QLCNIC_DEV_INITIALIZING);
2349 set_bit(__QLCNIC_START_FW, &adapter->state);
2350 QLCDB(adapter, DRV, "Restarting fw\n");
6df900e9 2351 qlcnic_idc_debug_info(adapter, 0);
af19b491
AKS		 2352 }
2353
f73dfc50
AKS		 2354 qlcnic_api_unlock(adapter);
2355
9f26f547 2356 if (!adapter->nic_ops->start_firmware(adapter)) {
af19b491
AKS		 2357 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2358 return;
2359 }
af19b491
AKS		 2360 goto err_ret;
2361 }
2362
f73dfc50 2363 qlcnic_api_unlock(adapter);
aa5e18c0 2364
9f26f547 2365wait_npar:
af19b491 2366 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
f73dfc50 2367 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
65b5b420 2368
af19b491 2369 switch (dev_state) {
a5e463d0
SC		 2370 case QLCNIC_DEV_QUISCENT:
2371 case QLCNIC_DEV_NEED_QUISCENT:
f73dfc50
AKS		 2372 case QLCNIC_DEV_NEED_RESET:
2373 qlcnic_schedule_work(adapter,
2374 qlcnic_fwinit_work, FW_POLL_DELAY);
2375 return;
af19b491
AKS		 2376 case QLCNIC_DEV_FAILED:
2377 break;
2378
2379 default:
9f26f547 2380 if (!adapter->nic_ops->start_firmware(adapter)) {
f73dfc50
AKS		 2381 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2382 return;
2383 }
af19b491
AKS		 2384 }
2385
2386err_ret:
f73dfc50
AKS		 2387 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2388 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
34ce3626 2389 netif_device_attach(adapter->netdev);
af19b491
AKS		 2390 qlcnic_clr_all_drv_state(adapter);
2391}
2392
2393static void
2394qlcnic_detach_work(struct work_struct *work)
2395{
2396 struct qlcnic_adapter *adapter = container_of(work,
2397 struct qlcnic_adapter, fw_work.work);
2398 struct net_device *netdev = adapter->netdev;
2399 u32 status;
2400
2401 netif_device_detach(netdev);
2402
2403 qlcnic_down(adapter, netdev);
2404
ce668443 2405 rtnl_lock();
af19b491 2406 qlcnic_detach(adapter);
ce668443 2407 rtnl_unlock();
af19b491
AKS		 2408
2409 status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2410
2411 if (status & QLCNIC_RCODE_FATAL_ERROR)
2412 goto err_ret;
2413
2414 if (adapter->temp == QLCNIC_TEMP_PANIC)
2415 goto err_ret;
2416
ade91f8e
AKS		 2417 if (qlcnic_set_drv_state(adapter, adapter->dev_state))
2418 goto err_ret;
af19b491
AKS		 2419
2420 adapter->fw_wait_cnt = 0;
2421
2422 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2423
2424 return;
2425
2426err_ret:
65b5b420
AKS		 2427 dev_err(&adapter->pdev->dev, "detach failed; status=%d temp=%d\n",
2428 status, adapter->temp);
34ce3626 2429 netif_device_attach(netdev);
af19b491
AKS		 2430 qlcnic_clr_all_drv_state(adapter);
2431
2432}
2433
f73dfc50 2434/*Transit to RESET state from READY state only */
af19b491
AKS		 2435static void
2436qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
2437{
2438 u32 state;
2439
2440 if (qlcnic_api_lock(adapter))
2441 return;
2442
2443 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2444
f73dfc50 2445 if (state == QLCNIC_DEV_READY) {
af19b491 2446 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
65b5b420 2447 QLCDB(adapter, DRV, "NEED_RESET state set\n");
6df900e9 2448 qlcnic_idc_debug_info(adapter, 0);
af19b491
AKS		 2449 }
2450
2451 qlcnic_api_unlock(adapter);
2452}
2453
9f26f547
AC		 2454/* Transit to NPAR READY state from NPAR NOT READY state */
2455static void
2456qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2457{
2458 u32 state;
2459
9f26f547
AC		 2460 if (qlcnic_api_lock(adapter))
2461 return;
2462
2463 state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2464
2465 if (state != QLCNIC_DEV_NPAR_RDY) {
2466 QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2467 QLCNIC_DEV_NPAR_RDY);
2468 QLCDB(adapter, DRV, "NPAR READY state set\n");
2469 }
2470
2471 qlcnic_api_unlock(adapter);
2472}
2473
af19b491
AKS		 2474static void
2475qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2476 work_func_t func, int delay)
2477{
2478 INIT_DELAYED_WORK(&adapter->fw_work, func);
2479 schedule_delayed_work(&adapter->fw_work, round_jiffies_relative(delay));
2480}
2481
2482static void
2483qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
2484{
2485 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2486 msleep(10);
2487
2488 cancel_delayed_work_sync(&adapter->fw_work);
2489}
2490
2491static void
2492qlcnic_attach_work(struct work_struct *work)
2493{
2494 struct qlcnic_adapter *adapter = container_of(work,
2495 struct qlcnic_adapter, fw_work.work);
2496 struct net_device *netdev = adapter->netdev;
2497 int err;
2498
2499 if (netif_running(netdev)) {
2500 err = qlcnic_attach(adapter);
2501 if (err)
2502 goto done;
2503
2504 err = qlcnic_up(adapter, netdev);
2505 if (err) {
2506 qlcnic_detach(adapter);
2507 goto done;
2508 }
2509
2510 qlcnic_config_indev_addr(netdev, NETDEV_UP);
2511 }
2512
af19b491 2513done:
34ce3626 2514 netif_device_attach(netdev);
af19b491
AKS		 2515 adapter->fw_fail_cnt = 0;
2516 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1b95a839
AKS		 2517
2518 if (!qlcnic_clr_drv_state(adapter))
2519 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2520 FW_POLL_DELAY);
af19b491
AKS		 2521}
2522
2523static int
2524qlcnic_check_health(struct qlcnic_adapter *adapter)
2525{
2526 u32 state = 0, heartbit;
2527 struct net_device *netdev = adapter->netdev;
2528
2529 if (qlcnic_check_temp(adapter))
2530 goto detach;
2531
2372a5f1 2532 if (adapter->need_fw_reset)
af19b491 2533 qlcnic_dev_request_reset(adapter);
af19b491
AKS		 2534
2535 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2536 if (state == QLCNIC_DEV_NEED_RESET || state == QLCNIC_DEV_NEED_QUISCENT)
2537 adapter->need_fw_reset = 1;
2538
2539 heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2540 if (heartbit != adapter->heartbit) {
2541 adapter->heartbit = heartbit;
2542 adapter->fw_fail_cnt = 0;
2543 if (adapter->need_fw_reset)
2544 goto detach;
2545 return 0;
2546 }
2547
2548 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2549 return 0;
2550
2551 qlcnic_dev_request_reset(adapter);
2552
2553 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2554
2555 dev_info(&netdev->dev, "firmware hang detected\n");
2556
2557detach:
2558 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
2559 QLCNIC_DEV_NEED_RESET;
2560
2561 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
65b5b420
AKS		 2562 !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) {
2563
af19b491 2564 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
65b5b420
AKS		 2565 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
2566 }
af19b491
AKS		 2567
2568 return 1;
2569}
2570
2571static void
2572qlcnic_fw_poll_work(struct work_struct *work)
2573{
2574 struct qlcnic_adapter *adapter = container_of(work,
2575 struct qlcnic_adapter, fw_work.work);
2576
2577 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2578 goto reschedule;
2579
2580
2581 if (qlcnic_check_health(adapter))
2582 return;
2583
2584reschedule:
2585 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2586}
2587
87eb743b
AC		 2588static int
2589qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
2590{
2591 int err;
2592
2593 err = qlcnic_can_start_firmware(adapter);
2594 if (err)
2595 return err;
2596
2597 qlcnic_check_options(adapter);
2598
2599 adapter->need_fw_reset = 0;
2600
2601 return err;
2602}
2603
2604static int
2605qlcnicvf_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
2606{
2607 return -EOPNOTSUPP;
2608}
2609
2610static int
2611qlcnicvf_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
2612{
2613 return -EOPNOTSUPP;
2614}
2615
2616static int
2617qlcnicvf_set_ilb_mode(struct qlcnic_adapter *adapter)
2618{
2619 return -EOPNOTSUPP;
2620}
2621
2622static void
2623qlcnicvf_clear_ilb_mode(struct qlcnic_adapter *adapter)
2624{
2625 return;
2626}
2627
af19b491
AKS		 2628static ssize_t
2629qlcnic_store_bridged_mode(struct device *dev,
2630 struct device_attribute *attr, const char *buf, size_t len)
2631{
2632 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2633 unsigned long new;
2634 int ret = -EINVAL;
2635
2636 if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
2637 goto err_out;
2638
2639 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2640 goto err_out;
2641
2642 if (strict_strtoul(buf, 2, &new))
2643 goto err_out;
2644
2e9d722d 2645 if (!adapter->nic_ops->config_bridged_mode(adapter, !!new))
af19b491
AKS		 2646 ret = len;
2647
2648err_out:
2649 return ret;
2650}
2651
2652static ssize_t
2653qlcnic_show_bridged_mode(struct device *dev,
2654 struct device_attribute *attr, char *buf)
2655{
2656 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2657 int bridged_mode = 0;
2658
2659 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
2660 bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
2661
2662 return sprintf(buf, "%d\n", bridged_mode);
2663}
2664
2665static struct device_attribute dev_attr_bridged_mode = {
2666 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2667 .show = qlcnic_show_bridged_mode,
2668 .store = qlcnic_store_bridged_mode,
2669};
2670
2671static ssize_t
2672qlcnic_store_diag_mode(struct device *dev,
2673 struct device_attribute *attr, const char *buf, size_t len)
2674{
2675 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2676 unsigned long new;
2677
2678 if (strict_strtoul(buf, 2, &new))
2679 return -EINVAL;
2680
2681 if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
2682 adapter->flags ^= QLCNIC_DIAG_ENABLED;
2683
2684 return len;
2685}
2686
2687static ssize_t
2688qlcnic_show_diag_mode(struct device *dev,
2689 struct device_attribute *attr, char *buf)
2690{
2691 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2692
2693 return sprintf(buf, "%d\n",
2694 !!(adapter->flags & QLCNIC_DIAG_ENABLED));
2695}
2696
2697static struct device_attribute dev_attr_diag_mode = {
2698 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2699 .show = qlcnic_show_diag_mode,
2700 .store = qlcnic_store_diag_mode,
2701};
2702
2703static int
2704qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
2705 loff_t offset, size_t size)
2706{
897e8c7c
DP		 2707 size_t crb_size = 4;
2708
af19b491
AKS		 2709 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
2710 return -EIO;
2711
897e8c7c
DP		 2712 if (offset < QLCNIC_PCI_CRBSPACE) {
2713 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM,
2714 QLCNIC_PCI_CAMQM_END))
2715 crb_size = 8;
2716 else
2717 return -EINVAL;
2718 }
af19b491 2719
897e8c7c
DP		 2720 if ((size != crb_size) || (offset & (crb_size-1)))
2721 return -EINVAL;
af19b491
AKS		 2722
2723 return 0;
2724}
2725
2726static ssize_t
2c3c8bea
CW		 2727qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2728 struct bin_attribute *attr,
af19b491
AKS		 2729 char *buf, loff_t offset, size_t size)
2730{
2731 struct device *dev = container_of(kobj, struct device, kobj);
2732 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2733 u32 data;
897e8c7c 2734 u64 qmdata;
af19b491
AKS		 2735 int ret;
2736
2737 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
2738 if (ret != 0)
2739 return ret;
2740
897e8c7c
DP		 2741 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
2742 qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
2743 memcpy(buf, &qmdata, size);
2744 } else {
2745 data = QLCRD32(adapter, offset);
2746 memcpy(buf, &data, size);
2747 }
af19b491
AKS		 2748 return size;
2749}
2750
2751static ssize_t
2c3c8bea
CW		 2752qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2753 struct bin_attribute *attr,
af19b491
AKS		 2754 char *buf, loff_t offset, size_t size)
2755{
2756 struct device *dev = container_of(kobj, struct device, kobj);
2757 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2758 u32 data;
897e8c7c 2759 u64 qmdata;
af19b491
AKS		 2760 int ret;
2761
2762 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
2763 if (ret != 0)
2764 return ret;
2765
897e8c7c
DP		 2766 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
2767 memcpy(&qmdata, buf, size);
2768 qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
2769 } else {
2770 memcpy(&data, buf, size);
2771 QLCWR32(adapter, offset, data);
2772 }
af19b491
AKS		 2773 return size;
2774}
2775
2776static int
2777qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
2778 loff_t offset, size_t size)
2779{
2780 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
2781 return -EIO;
2782
2783 if ((size != 8) || (offset & 0x7))
2784 return -EIO;
2785
2786 return 0;
2787}
2788
2789static ssize_t
2c3c8bea
CW		 2790qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2791 struct bin_attribute *attr,
af19b491
AKS		 2792 char *buf, loff_t offset, size_t size)
2793{
2794 struct device *dev = container_of(kobj, struct device, kobj);
2795 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2796 u64 data;
2797 int ret;
2798
2799 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
2800 if (ret != 0)
2801 return ret;
2802
2803 if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
2804 return -EIO;
2805
2806 memcpy(buf, &data, size);
2807
2808 return size;
2809}
2810
2811static ssize_t
2c3c8bea
CW		 2812qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj,
2813 struct bin_attribute *attr,
af19b491
AKS		 2814 char *buf, loff_t offset, size_t size)
2815{
2816 struct device *dev = container_of(kobj, struct device, kobj);
2817 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2818 u64 data;
2819 int ret;
2820
2821 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
2822 if (ret != 0)
2823 return ret;
2824
2825 memcpy(&data, buf, size);
2826
2827 if (qlcnic_pci_mem_write_2M(adapter, offset, data))
2828 return -EIO;
2829
2830 return size;
2831}
2832
2833
2834static struct bin_attribute bin_attr_crb = {
2835 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2836 .size = 0,
2837 .read = qlcnic_sysfs_read_crb,
2838 .write = qlcnic_sysfs_write_crb,
2839};
2840
2841static struct bin_attribute bin_attr_mem = {
2842 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2843 .size = 0,
2844 .read = qlcnic_sysfs_read_mem,
2845 .write = qlcnic_sysfs_write_mem,
2846};
2847
2848static void
2849qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
2850{
2851 struct device *dev = &adapter->pdev->dev;
2852
2853 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
2854 if (device_create_file(dev, &dev_attr_bridged_mode))
2855 dev_warn(dev,
2856 "failed to create bridged_mode sysfs entry\n");
2857}
2858
2859static void
2860qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
2861{
2862 struct device *dev = &adapter->pdev->dev;
2863
2864 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
2865 device_remove_file(dev, &dev_attr_bridged_mode);
2866}
2867
2868static void
2869qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
2870{
2871 struct device *dev = &adapter->pdev->dev;
2872
2873 if (device_create_file(dev, &dev_attr_diag_mode))
2874 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2875 if (device_create_bin_file(dev, &bin_attr_crb))
2876 dev_info(dev, "failed to create crb sysfs entry\n");
2877 if (device_create_bin_file(dev, &bin_attr_mem))
2878 dev_info(dev, "failed to create mem sysfs entry\n");
2879}
2880
2881
2882static void
2883qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
2884{
2885 struct device *dev = &adapter->pdev->dev;
2886
2887 device_remove_file(dev, &dev_attr_diag_mode);
2888 device_remove_bin_file(dev, &bin_attr_crb);
2889 device_remove_bin_file(dev, &bin_attr_mem);
2890}
2891
2892#ifdef CONFIG_INET
2893
2894#define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
2895
af19b491
AKS		 2896static void
2897qlcnic_config_indev_addr(struct net_device *dev, unsigned long event)
2898{
2899 struct in_device *indev;
2900 struct qlcnic_adapter *adapter = netdev_priv(dev);
2901
af19b491
AKS		 2902 indev = in_dev_get(dev);
2903 if (!indev)
2904 return;
2905
2906 for_ifa(indev) {
2907 switch (event) {
2908 case NETDEV_UP:
2909 qlcnic_config_ipaddr(adapter,
2910 ifa->ifa_address, QLCNIC_IP_UP);
2911 break;
2912 case NETDEV_DOWN:
2913 qlcnic_config_ipaddr(adapter,
2914 ifa->ifa_address, QLCNIC_IP_DOWN);
2915 break;
2916 default:
2917 break;
2918 }
2919 } endfor_ifa(indev);
2920
2921 in_dev_put(indev);
af19b491
AKS		 2922}
2923
2924static int qlcnic_netdev_event(struct notifier_block *this,
2925 unsigned long event, void *ptr)
2926{
2927 struct qlcnic_adapter *adapter;
2928 struct net_device *dev = (struct net_device *)ptr;
2929
2930recheck:
2931 if (dev == NULL)
2932 goto done;
2933
2934 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2935 dev = vlan_dev_real_dev(dev);
2936 goto recheck;
2937 }
2938
2939 if (!is_qlcnic_netdev(dev))
2940 goto done;
2941
2942 adapter = netdev_priv(dev);
2943
2944 if (!adapter)
2945 goto done;
2946
2947 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2948 goto done;
2949
2950 qlcnic_config_indev_addr(dev, event);
2951done:
2952 return NOTIFY_DONE;
2953}
2954
2955static int
2956qlcnic_inetaddr_event(struct notifier_block *this,
2957 unsigned long event, void *ptr)
2958{
2959 struct qlcnic_adapter *adapter;
2960 struct net_device *dev;
2961
2962 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2963
2964 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2965
2966recheck:
2967 if (dev == NULL || !netif_running(dev))
2968 goto done;
2969
2970 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2971 dev = vlan_dev_real_dev(dev);
2972 goto recheck;
2973 }
2974
2975 if (!is_qlcnic_netdev(dev))
2976 goto done;
2977
2978 adapter = netdev_priv(dev);
2979
251a84c9 2980 if (!adapter)
af19b491
AKS		 2981 goto done;
2982
2983 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
2984 goto done;
2985
2986 switch (event) {
2987 case NETDEV_UP:
2988 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
2989 break;
2990 case NETDEV_DOWN:
2991 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
2992 break;
2993 default:
2994 break;
2995 }
2996
2997done:
2998 return NOTIFY_DONE;
2999}
3000
3001static struct notifier_block qlcnic_netdev_cb = {
3002 .notifier_call = qlcnic_netdev_event,
3003};
3004
3005static struct notifier_block qlcnic_inetaddr_cb = {
3006 .notifier_call = qlcnic_inetaddr_event,
3007};
3008#else
3009static void
3010qlcnic_config_indev_addr(struct net_device *dev, unsigned long event)
3011{ }
3012#endif
3013
3014static struct pci_driver qlcnic_driver = {
3015 .name = qlcnic_driver_name,
3016 .id_table = qlcnic_pci_tbl,
3017 .probe = qlcnic_probe,
3018 .remove = __devexit_p(qlcnic_remove),
3019#ifdef CONFIG_PM
3020 .suspend = qlcnic_suspend,
3021 .resume = qlcnic_resume,
3022#endif
3023 .shutdown = qlcnic_shutdown
3024};
3025
3026static int __init qlcnic_init_module(void)
3027{
3028
3029 printk(KERN_INFO "%s\n", qlcnic_driver_string);
3030
3031#ifdef CONFIG_INET
3032 register_netdevice_notifier(&qlcnic_netdev_cb);
3033 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3034#endif
3035
3036
3037 return pci_register_driver(&qlcnic_driver);
3038}
3039
3040module_init(qlcnic_init_module);
3041
3042static void __exit qlcnic_exit_module(void)
3043{
3044
3045 pci_unregister_driver(&qlcnic_driver);
3046
3047#ifdef CONFIG_INET
3048 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3049 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3050#endif
3051}
3052
3053module_exit(qlcnic_exit_module);
Clone of davem's net-next-2.6 tree