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qlcnic: Remove obsolete code
[net-next-2.6.git] / drivers / net / qlcnic / qlcnic_main.c
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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 77static void qlcnic_tx_timeout(struct net_device *netdev);
af19b491
AKS		 78static void qlcnic_attach_work(struct work_struct *work);
79static void qlcnic_fwinit_work(struct work_struct *work);
80static void qlcnic_fw_poll_work(struct work_struct *work);
81static void qlcnic_schedule_work(struct qlcnic_adapter *adapter,
82 work_func_t func, int delay);
83static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter);
84static int qlcnic_poll(struct napi_struct *napi, int budget);
8f891387 85static int qlcnic_rx_poll(struct napi_struct *napi, int budget);
af19b491
AKS		 86#ifdef CONFIG_NET_POLL_CONTROLLER
87static void qlcnic_poll_controller(struct net_device *netdev);
88#endif
89
90static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter);
91static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter);
92static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter);
93static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter);
94
6df900e9 95static void qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding);
af19b491
AKS		 96static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter);
97static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter);
98
7eb9855d 99static irqreturn_t qlcnic_tmp_intr(int irq, void *data);
af19b491
AKS		 100static irqreturn_t qlcnic_intr(int irq, void *data);
101static irqreturn_t qlcnic_msi_intr(int irq, void *data);
102static irqreturn_t qlcnic_msix_intr(int irq, void *data);
103
104static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev);
105static void qlcnic_config_indev_addr(struct net_device *dev, unsigned long);
9f26f547
AC		 106static int qlcnic_start_firmware(struct qlcnic_adapter *);
107
108static void qlcnic_dev_set_npar_ready(struct qlcnic_adapter *);
109static void qlcnicvf_clear_ilb_mode(struct qlcnic_adapter *);
110static int qlcnicvf_set_ilb_mode(struct qlcnic_adapter *);
111static int qlcnicvf_config_led(struct qlcnic_adapter *, u32, u32);
112static int qlcnicvf_config_bridged_mode(struct qlcnic_adapter *, u32);
113static int qlcnicvf_start_firmware(struct qlcnic_adapter *);
af19b491
AKS		 114/* PCI Device ID Table */
115#define ENTRY(device) \
116 {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \
117 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
118
119#define PCI_DEVICE_ID_QLOGIC_QLE824X 0x8020
120
6a902881 121static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = {
af19b491
AKS		 122 ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X),
123 {0,}
124};
125
126MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl);
127
128
129void
130qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter,
131 struct qlcnic_host_tx_ring *tx_ring)
132{
133 writel(tx_ring->producer, tx_ring->crb_cmd_producer);
af19b491
AKS		 134}
135
136static const u32 msi_tgt_status[8] = {
137 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
138 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
139 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
140 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
141};
142
143static const
144struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG;
145
146static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring)
147{
148 writel(0, sds_ring->crb_intr_mask);
149}
150
151static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring)
152{
153 struct qlcnic_adapter *adapter = sds_ring->adapter;
154
155 writel(0x1, sds_ring->crb_intr_mask);
156
157 if (!QLCNIC_IS_MSI_FAMILY(adapter))
158 writel(0xfbff, adapter->tgt_mask_reg);
159}
160
161static int
162qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count)
163{
164 int size = sizeof(struct qlcnic_host_sds_ring) * count;
165
166 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
167
168 return (recv_ctx->sds_rings == NULL);
169}
170
171static void
172qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx)
173{
174 if (recv_ctx->sds_rings != NULL)
175 kfree(recv_ctx->sds_rings);
176
177 recv_ctx->sds_rings = NULL;
178}
179
180static int
181qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev)
182{
183 int ring;
184 struct qlcnic_host_sds_ring *sds_ring;
185 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
186
187 if (qlcnic_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
188 return -ENOMEM;
189
190 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
191 sds_ring = &recv_ctx->sds_rings[ring];
8f891387 192
193 if (ring == adapter->max_sds_rings - 1)
194 netif_napi_add(netdev, &sds_ring->napi, qlcnic_poll,
195 QLCNIC_NETDEV_WEIGHT/adapter->max_sds_rings);
196 else
197 netif_napi_add(netdev, &sds_ring->napi,
198 qlcnic_rx_poll, QLCNIC_NETDEV_WEIGHT*2);
af19b491
AKS		 199 }
200
201 return 0;
202}
203
204static void
205qlcnic_napi_del(struct qlcnic_adapter *adapter)
206{
207 int ring;
208 struct qlcnic_host_sds_ring *sds_ring;
209 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
210
211 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
212 sds_ring = &recv_ctx->sds_rings[ring];
213 netif_napi_del(&sds_ring->napi);
214 }
215
216 qlcnic_free_sds_rings(&adapter->recv_ctx);
217}
218
219static void
220qlcnic_napi_enable(struct qlcnic_adapter *adapter)
221{
222 int ring;
223 struct qlcnic_host_sds_ring *sds_ring;
224 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
225
780ab790
AKS		 226 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
227 return;
228
af19b491
AKS		 229 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
230 sds_ring = &recv_ctx->sds_rings[ring];
231 napi_enable(&sds_ring->napi);
232 qlcnic_enable_int(sds_ring);
233 }
234}
235
236static void
237qlcnic_napi_disable(struct qlcnic_adapter *adapter)
238{
239 int ring;
240 struct qlcnic_host_sds_ring *sds_ring;
241 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
242
780ab790
AKS		 243 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
244 return;
245
af19b491
AKS		 246 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
247 sds_ring = &recv_ctx->sds_rings[ring];
248 qlcnic_disable_int(sds_ring);
249 napi_synchronize(&sds_ring->napi);
250 napi_disable(&sds_ring->napi);
251 }
252}
253
254static void qlcnic_clear_stats(struct qlcnic_adapter *adapter)
255{
256 memset(&adapter->stats, 0, sizeof(adapter->stats));
af19b491
AKS		 257}
258
af19b491
AKS		 259static void qlcnic_set_port_mode(struct qlcnic_adapter *adapter)
260{
261 u32 val, data;
262
263 val = adapter->ahw.board_type;
264 if ((val == QLCNIC_BRDTYPE_P3_HMEZ) ||
265 (val == QLCNIC_BRDTYPE_P3_XG_LOM)) {
266 if (port_mode == QLCNIC_PORT_MODE_802_3_AP) {
267 data = QLCNIC_PORT_MODE_802_3_AP;
268 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
269 } else if (port_mode == QLCNIC_PORT_MODE_XG) {
270 data = QLCNIC_PORT_MODE_XG;
271 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
272 } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_1G) {
273 data = QLCNIC_PORT_MODE_AUTO_NEG_1G;
274 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
275 } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_XG) {
276 data = QLCNIC_PORT_MODE_AUTO_NEG_XG;
277 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
278 } else {
279 data = QLCNIC_PORT_MODE_AUTO_NEG;
280 QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data);
281 }
282
283 if ((wol_port_mode != QLCNIC_PORT_MODE_802_3_AP) &&
284 (wol_port_mode != QLCNIC_PORT_MODE_XG) &&
285 (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_1G) &&
286 (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_XG)) {
287 wol_port_mode = QLCNIC_PORT_MODE_AUTO_NEG;
288 }
289 QLCWR32(adapter, QLCNIC_WOL_PORT_MODE, wol_port_mode);
290 }
291}
292
293static void qlcnic_set_msix_bit(struct pci_dev *pdev, int enable)
294{
295 u32 control;
296 int pos;
297
298 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
299 if (pos) {
300 pci_read_config_dword(pdev, pos, &control);
301 if (enable)
302 control |= PCI_MSIX_FLAGS_ENABLE;
303 else
304 control = 0;
305 pci_write_config_dword(pdev, pos, control);
306 }
307}
308
309static void qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count)
310{
311 int i;
312
313 for (i = 0; i < count; i++)
314 adapter->msix_entries[i].entry = i;
315}
316
317static int
318qlcnic_read_mac_addr(struct qlcnic_adapter *adapter)
319{
2e9d722d 320 u8 mac_addr[ETH_ALEN];
af19b491
AKS		 321 struct net_device *netdev = adapter->netdev;
322 struct pci_dev *pdev = adapter->pdev;
323
2e9d722d 324 if (adapter->nic_ops->get_mac_addr(adapter, mac_addr) != 0)
af19b491
AKS		 325 return -EIO;
326
2e9d722d 327 memcpy(netdev->dev_addr, mac_addr, ETH_ALEN);
af19b491
AKS		 328 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
329 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
330
331 /* set station address */
332
333 if (!is_valid_ether_addr(netdev->perm_addr))
334 dev_warn(&pdev->dev, "Bad MAC address %pM.\n",
335 netdev->dev_addr);
336
337 return 0;
338}
339
340static int qlcnic_set_mac(struct net_device *netdev, void *p)
341{
342 struct qlcnic_adapter *adapter = netdev_priv(netdev);
343 struct sockaddr *addr = p;
344
345 if (!is_valid_ether_addr(addr->sa_data))
346 return -EINVAL;
347
8a15ad1f 348 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
af19b491
AKS		 349 netif_device_detach(netdev);
350 qlcnic_napi_disable(adapter);
351 }
352
353 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
354 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
355 qlcnic_set_multi(adapter->netdev);
356
8a15ad1f 357 if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
af19b491
AKS		 358 netif_device_attach(netdev);
359 qlcnic_napi_enable(adapter);
360 }
361 return 0;
362}
363
364static const struct net_device_ops qlcnic_netdev_ops = {
365 .ndo_open = qlcnic_open,
366 .ndo_stop = qlcnic_close,
367 .ndo_start_xmit = qlcnic_xmit_frame,
368 .ndo_get_stats = qlcnic_get_stats,
369 .ndo_validate_addr = eth_validate_addr,
370 .ndo_set_multicast_list = qlcnic_set_multi,
371 .ndo_set_mac_address = qlcnic_set_mac,
372 .ndo_change_mtu = qlcnic_change_mtu,
373 .ndo_tx_timeout = qlcnic_tx_timeout,
374#ifdef CONFIG_NET_POLL_CONTROLLER
375 .ndo_poll_controller = qlcnic_poll_controller,
376#endif
377};
378
2e9d722d 379static struct qlcnic_nic_template qlcnic_ops = {
2e9d722d
AC		 380 .get_mac_addr = qlcnic_get_mac_address,
381 .config_bridged_mode = qlcnic_config_bridged_mode,
382 .config_led = qlcnic_config_led,
383 .set_ilb_mode = qlcnic_set_ilb_mode,
9f26f547
AC		 384 .clear_ilb_mode = qlcnic_clear_ilb_mode,
385 .start_firmware = qlcnic_start_firmware
386};
387
388static struct qlcnic_nic_template qlcnic_vf_ops = {
389 .get_mac_addr = qlcnic_get_mac_address,
390 .config_bridged_mode = qlcnicvf_config_bridged_mode,
391 .config_led = qlcnicvf_config_led,
392 .set_ilb_mode = qlcnicvf_set_ilb_mode,
393 .clear_ilb_mode = qlcnicvf_clear_ilb_mode,
394 .start_firmware = qlcnicvf_start_firmware
2e9d722d
AC		 395};
396
af19b491
AKS		 397static void
398qlcnic_setup_intr(struct qlcnic_adapter *adapter)
399{
400 const struct qlcnic_legacy_intr_set *legacy_intrp;
401 struct pci_dev *pdev = adapter->pdev;
402 int err, num_msix;
403
404 if (adapter->rss_supported) {
405 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
406 MSIX_ENTRIES_PER_ADAPTER : 2;
407 } else
408 num_msix = 1;
409
410 adapter->max_sds_rings = 1;
411
412 adapter->flags &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED);
413
414 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
415
416 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
417 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
418 legacy_intrp->tgt_status_reg);
419 adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter,
420 legacy_intrp->tgt_mask_reg);
421 adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR);
422
423 adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter,
424 ISR_INT_STATE_REG);
425
426 qlcnic_set_msix_bit(pdev, 0);
427
428 if (adapter->msix_supported) {
429
430 qlcnic_init_msix_entries(adapter, num_msix);
431 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
432 if (err == 0) {
433 adapter->flags |= QLCNIC_MSIX_ENABLED;
434 qlcnic_set_msix_bit(pdev, 1);
435
436 if (adapter->rss_supported)
437 adapter->max_sds_rings = num_msix;
438
439 dev_info(&pdev->dev, "using msi-x interrupts\n");
440 return;
441 }
442
443 if (err > 0)
444 pci_disable_msix(pdev);
445
446 /* fall through for msi */
447 }
448
449 if (use_msi && !pci_enable_msi(pdev)) {
450 adapter->flags |= QLCNIC_MSI_ENABLED;
451 adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter,
452 msi_tgt_status[adapter->ahw.pci_func]);
453 dev_info(&pdev->dev, "using msi interrupts\n");
454 adapter->msix_entries[0].vector = pdev->irq;
455 return;
456 }
457
458 dev_info(&pdev->dev, "using legacy interrupts\n");
459 adapter->msix_entries[0].vector = pdev->irq;
460}
461
462static void
463qlcnic_teardown_intr(struct qlcnic_adapter *adapter)
464{
465 if (adapter->flags & QLCNIC_MSIX_ENABLED)
466 pci_disable_msix(adapter->pdev);
467 if (adapter->flags & QLCNIC_MSI_ENABLED)
468 pci_disable_msi(adapter->pdev);
469}
470
471static void
472qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter)
473{
474 if (adapter->ahw.pci_base0 != NULL)
475 iounmap(adapter->ahw.pci_base0);
476}
477
2e9d722d
AC		 478static int
479qlcnic_set_function_modes(struct qlcnic_adapter *adapter)
480{
481 u8 id;
482 u32 ref_count;
483 int i, ret = 1;
484 u32 data = QLCNIC_MGMT_FUNC;
485 void __iomem *priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
486
487 /* If other drivers are not in use set their privilege level */
488 ref_count = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
489 ret = qlcnic_api_lock(adapter);
490 if (ret)
491 goto err_lock;
492 if (QLC_DEV_CLR_REF_CNT(ref_count, adapter->ahw.pci_func))
493 goto err_npar;
494
0e33c664
AC		 495 if (qlcnic_config_npars) {
496 for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) {
497 id = adapter->npars[i].id;
498 if (adapter->npars[i].type != QLCNIC_TYPE_NIC ||
499 id == adapter->ahw.pci_func)
500 continue;
501 data |= (qlcnic_config_npars &
502 QLC_DEV_SET_DRV(0xf, id));
503 }
504 } else {
505 data = readl(priv_op);
506 data = (data & ~QLC_DEV_SET_DRV(0xf, adapter->ahw.pci_func)) |
507 (QLC_DEV_SET_DRV(QLCNIC_MGMT_FUNC,
508 adapter->ahw.pci_func));
2e9d722d
AC		 509 }
510 writel(data, priv_op);
2e9d722d
AC		 511err_npar:
512 qlcnic_api_unlock(adapter);
513err_lock:
514 return ret;
515}
516
2e9d722d
AC		 517static u32
518qlcnic_get_driver_mode(struct qlcnic_adapter *adapter)
519{
520 void __iomem *msix_base_addr;
521 void __iomem *priv_op;
522 u32 func;
523 u32 msix_base;
524 u32 op_mode, priv_level;
525
526 /* Determine FW API version */
527 adapter->fw_hal_version = readl(adapter->ahw.pci_base0 + QLCNIC_FW_API);
2e9d722d
AC		 528
529 /* Find PCI function number */
530 pci_read_config_dword(adapter->pdev, QLCNIC_MSIX_TABLE_OFFSET, &func);
531 msix_base_addr = adapter->ahw.pci_base0 + QLCNIC_MSIX_BASE;
532 msix_base = readl(msix_base_addr);
533 func = (func - msix_base)/QLCNIC_MSIX_TBL_PGSIZE;
534 adapter->ahw.pci_func = func;
535
0e33c664
AC		 536 qlcnic_get_nic_info(adapter, adapter->ahw.pci_func);
537
538 if (!(adapter->flags & QLCNIC_ESWITCH_ENABLED)) {
539 adapter->nic_ops = &qlcnic_ops;
540 return adapter->fw_hal_version;
541 }
542
2e9d722d
AC		 543 /* Determine function privilege level */
544 priv_op = adapter->ahw.pci_base0 + QLCNIC_DRV_OP_MODE;
545 op_mode = readl(priv_op);
0e33c664 546 if (op_mode == QLC_DEV_DRV_DEFAULT)
2e9d722d 547 priv_level = QLCNIC_MGMT_FUNC;
0e33c664 548 else
2e9d722d
AC		 549 priv_level = QLC_DEV_GET_DRV(op_mode, adapter->ahw.pci_func);
550
551 switch (priv_level) {
552 case QLCNIC_MGMT_FUNC:
553 adapter->op_mode = QLCNIC_MGMT_FUNC;
45918e2f 554 adapter->nic_ops = &qlcnic_ops;
0e33c664 555 qlcnic_get_pci_info(adapter);
2e9d722d 556 /* Set privilege level for other functions */
0e33c664 557 qlcnic_set_function_modes(adapter);
2e9d722d
AC		 558 dev_info(&adapter->pdev->dev,
559 "HAL Version: %d, Management function\n",
560 adapter->fw_hal_version);
561 break;
562 case QLCNIC_PRIV_FUNC:
563 adapter->op_mode = QLCNIC_PRIV_FUNC;
564 dev_info(&adapter->pdev->dev,
565 "HAL Version: %d, Privileged function\n",
566 adapter->fw_hal_version);
45918e2f 567 adapter->nic_ops = &qlcnic_ops;
2e9d722d 568 break;
9f26f547
AC		 569 case QLCNIC_NON_PRIV_FUNC:
570 adapter->op_mode = QLCNIC_NON_PRIV_FUNC;
571 dev_info(&adapter->pdev->dev,
572 "HAL Version: %d Non Privileged function\n",
573 adapter->fw_hal_version);
574 adapter->nic_ops = &qlcnic_vf_ops;
575 break;
2e9d722d
AC		 576 default:
577 dev_info(&adapter->pdev->dev, "Unknown function mode: %d\n",
578 priv_level);
579 return 0;
580 }
581 return adapter->fw_hal_version;
582}
583
af19b491
AKS		 584static int
585qlcnic_setup_pci_map(struct qlcnic_adapter *adapter)
586{
587 void __iomem *mem_ptr0 = NULL;
588 resource_size_t mem_base;
589 unsigned long mem_len, pci_len0 = 0;
590
591 struct pci_dev *pdev = adapter->pdev;
af19b491 592
af19b491
AKS		 593 /* remap phys address */
594 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
595 mem_len = pci_resource_len(pdev, 0);
596
597 if (mem_len == QLCNIC_PCI_2MB_SIZE) {
598
599 mem_ptr0 = pci_ioremap_bar(pdev, 0);
600 if (mem_ptr0 == NULL) {
601 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
602 return -EIO;
603 }
604 pci_len0 = mem_len;
605 } else {
606 return -EIO;
607 }
608
609 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
610
611 adapter->ahw.pci_base0 = mem_ptr0;
612 adapter->ahw.pci_len0 = pci_len0;
613
2e9d722d
AC		 614 if (!qlcnic_get_driver_mode(adapter)) {
615 iounmap(adapter->ahw.pci_base0);
616 return -EIO;
617 }
618
af19b491 619 adapter->ahw.ocm_win_crb = qlcnic_get_ioaddr(adapter,
2e9d722d 620 QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(adapter->ahw.pci_func)));
af19b491
AKS		 621
622 return 0;
623}
624
625static void get_brd_name(struct qlcnic_adapter *adapter, char *name)
626{
627 struct pci_dev *pdev = adapter->pdev;
628 int i, found = 0;
629
630 for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) {
631 if (qlcnic_boards[i].vendor == pdev->vendor &&
632 qlcnic_boards[i].device == pdev->device &&
633 qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor &&
634 qlcnic_boards[i].sub_device == pdev->subsystem_device) {
02f6e46f
SC		 635 sprintf(name, "%pM: %s" ,
636 adapter->mac_addr,
637 qlcnic_boards[i].short_name);
af19b491
AKS		 638 found = 1;
639 break;
640 }
641
642 }
643
644 if (!found)
7f9a0c34 645 sprintf(name, "%pM Gigabit Ethernet", adapter->mac_addr);
af19b491
AKS		 646}
647
648static void
649qlcnic_check_options(struct qlcnic_adapter *adapter)
650{
651 u32 fw_major, fw_minor, fw_build;
652 char brd_name[QLCNIC_MAX_BOARD_NAME_LEN];
653 char serial_num[32];
654 int i, offset, val;
655 int *ptr32;
656 struct pci_dev *pdev = adapter->pdev;
657
658 adapter->driver_mismatch = 0;
659
660 ptr32 = (int *)&serial_num;
661 offset = QLCNIC_FW_SERIAL_NUM_OFFSET;
662 for (i = 0; i < 8; i++) {
663 if (qlcnic_rom_fast_read(adapter, offset, &val) == -1) {
664 dev_err(&pdev->dev, "error reading board info\n");
665 adapter->driver_mismatch = 1;
666 return;
667 }
668 ptr32[i] = cpu_to_le32(val);
669 offset += sizeof(u32);
670 }
671
672 fw_major = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR);
673 fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR);
674 fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB);
675
676 adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
677
678 if (adapter->portnum == 0) {
679 get_brd_name(adapter, brd_name);
680
681 pr_info("%s: %s Board Chip rev 0x%x\n",
682 module_name(THIS_MODULE),
683 brd_name, adapter->ahw.revision_id);
684 }
685
251a84c9
AKS		 686 dev_info(&pdev->dev, "firmware v%d.%d.%d\n",
687 fw_major, fw_minor, fw_build);
af19b491 688
af19b491
AKS		 689 adapter->flags &= ~QLCNIC_LRO_ENABLED;
690
691 if (adapter->ahw.port_type == QLCNIC_XGBE) {
692 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
693 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
694 } else if (adapter->ahw.port_type == QLCNIC_GBE) {
695 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
696 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
697 }
698
0e33c664
AC		 699 qlcnic_get_nic_info(adapter, adapter->ahw.pci_func);
700
af19b491
AKS		 701 adapter->msix_supported = !!use_msi_x;
702 adapter->rss_supported = !!use_msi_x;
703
704 adapter->num_txd = MAX_CMD_DESCRIPTORS;
705
af19b491
AKS		 706 adapter->max_rds_rings = 2;
707}
708
709static int
710qlcnic_start_firmware(struct qlcnic_adapter *adapter)
711{
712 int val, err, first_boot;
713
aa5e18c0
SC		 714 err = qlcnic_can_start_firmware(adapter);
715 if (err < 0)
716 return err;
717 else if (!err)
af19b491
AKS		 718 goto wait_init;
719
720 first_boot = QLCRD32(adapter, QLCNIC_CAM_RAM(0x1fc));
721 if (first_boot == 0x55555555)
722 /* This is the first boot after power up */
723 QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC);
724
4d5bdb38
AKS		 725 if (load_fw_file)
726 qlcnic_request_firmware(adapter);
8f891387 727 else {
728 if (qlcnic_check_flash_fw_ver(adapter))
729 goto err_out;
730
4d5bdb38 731 adapter->fw_type = QLCNIC_FLASH_ROMIMAGE;
8f891387 732 }
af19b491
AKS		 733
734 err = qlcnic_need_fw_reset(adapter);
735 if (err < 0)
736 goto err_out;
737 if (err == 0)
738 goto wait_init;
739
740 if (first_boot != 0x55555555) {
741 QLCWR32(adapter, CRB_CMDPEG_STATE, 0);
900c6cff 742 QLCWR32(adapter, CRB_RCVPEG_STATE, 0);
af19b491
AKS		 743 qlcnic_pinit_from_rom(adapter);
744 msleep(1);
745 }
746
af19b491
AKS		 747 QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0);
748 QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0);
749
750 qlcnic_set_port_mode(adapter);
751
752 err = qlcnic_load_firmware(adapter);
753 if (err)
754 goto err_out;
755
756 qlcnic_release_firmware(adapter);
757
758 val = (_QLCNIC_LINUX_MAJOR << 16)
759 | ((_QLCNIC_LINUX_MINOR << 8))
760 | (_QLCNIC_LINUX_SUBVERSION);
761 QLCWR32(adapter, CRB_DRIVER_VERSION, val);
762
763wait_init:
764 /* Handshake with the card before we register the devices. */
900c6cff 765 err = qlcnic_init_firmware(adapter);
af19b491
AKS		 766 if (err)
767 goto err_out;
768
769 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY);
6df900e9 770 qlcnic_idc_debug_info(adapter, 1);
af19b491 771
af19b491
AKS		 772 qlcnic_check_options(adapter);
773
0e33c664
AC		 774 if (adapter->flags & QLCNIC_ESWITCH_ENABLED &&
775 adapter->op_mode != QLCNIC_NON_PRIV_FUNC)
776 qlcnic_dev_set_npar_ready(adapter);
2e9d722d 777
af19b491
AKS		 778 adapter->need_fw_reset = 0;
779
a7fc948f
AKS		 780 qlcnic_release_firmware(adapter);
781 return 0;
af19b491
AKS		 782
783err_out:
a7fc948f
AKS		 784 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_FAILED);
785 dev_err(&adapter->pdev->dev, "Device state set to failed\n");
af19b491
AKS		 786 qlcnic_release_firmware(adapter);
787 return err;
788}
789
790static int
791qlcnic_request_irq(struct qlcnic_adapter *adapter)
792{
793 irq_handler_t handler;
794 struct qlcnic_host_sds_ring *sds_ring;
795 int err, ring;
796
797 unsigned long flags = 0;
798 struct net_device *netdev = adapter->netdev;
799 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
800
7eb9855d
AKS		 801 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
802 handler = qlcnic_tmp_intr;
803 if (!QLCNIC_IS_MSI_FAMILY(adapter))
804 flags |= IRQF_SHARED;
805
806 } else {
807 if (adapter->flags & QLCNIC_MSIX_ENABLED)
808 handler = qlcnic_msix_intr;
809 else if (adapter->flags & QLCNIC_MSI_ENABLED)
810 handler = qlcnic_msi_intr;
811 else {
812 flags |= IRQF_SHARED;
813 handler = qlcnic_intr;
814 }
af19b491
AKS		 815 }
816 adapter->irq = netdev->irq;
817
818 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
819 sds_ring = &recv_ctx->sds_rings[ring];
820 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
821 err = request_irq(sds_ring->irq, handler,
822 flags, sds_ring->name, sds_ring);
823 if (err)
824 return err;
825 }
826
827 return 0;
828}
829
830static void
831qlcnic_free_irq(struct qlcnic_adapter *adapter)
832{
833 int ring;
834 struct qlcnic_host_sds_ring *sds_ring;
835
836 struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx;
837
838 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
839 sds_ring = &recv_ctx->sds_rings[ring];
840 free_irq(sds_ring->irq, sds_ring);
841 }
842}
843
844static void
845qlcnic_init_coalesce_defaults(struct qlcnic_adapter *adapter)
846{
847 adapter->coal.flags = QLCNIC_INTR_DEFAULT;
848 adapter->coal.normal.data.rx_time_us =
849 QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US;
850 adapter->coal.normal.data.rx_packets =
851 QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS;
852 adapter->coal.normal.data.tx_time_us =
853 QLCNIC_DEFAULT_INTR_COALESCE_TX_TIME_US;
854 adapter->coal.normal.data.tx_packets =
855 QLCNIC_DEFAULT_INTR_COALESCE_TX_PACKETS;
856}
857
858static int
859__qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
860{
8a15ad1f
AKS		 861 int ring;
862 struct qlcnic_host_rds_ring *rds_ring;
863
af19b491
AKS		 864 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
865 return -EIO;
866
8a15ad1f
AKS		 867 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
868 return 0;
869
870 if (qlcnic_fw_create_ctx(adapter))
871 return -EIO;
872
873 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
874 rds_ring = &adapter->recv_ctx.rds_rings[ring];
875 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
876 }
877
af19b491
AKS		 878 qlcnic_set_multi(netdev);
879 qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu);
880
881 adapter->ahw.linkup = 0;
882
883 if (adapter->max_sds_rings > 1)
884 qlcnic_config_rss(adapter, 1);
885
886 qlcnic_config_intr_coalesce(adapter);
887
888 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
889 qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED);
890
891 qlcnic_napi_enable(adapter);
892
893 qlcnic_linkevent_request(adapter, 1);
894
68bf1c68 895 adapter->reset_context = 0;
af19b491
AKS		 896 set_bit(__QLCNIC_DEV_UP, &adapter->state);
897 return 0;
898}
899
900/* Usage: During resume and firmware recovery module.*/
901
902static int
903qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev)
904{
905 int err = 0;
906
907 rtnl_lock();
908 if (netif_running(netdev))
909 err = __qlcnic_up(adapter, netdev);
910 rtnl_unlock();
911
912 return err;
913}
914
915static void
916__qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
917{
918 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
919 return;
920
921 if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state))
922 return;
923
924 smp_mb();
925 spin_lock(&adapter->tx_clean_lock);
926 netif_carrier_off(netdev);
927 netif_tx_disable(netdev);
928
929 qlcnic_free_mac_list(adapter);
930
931 qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE);
932
933 qlcnic_napi_disable(adapter);
934
8a15ad1f
AKS		 935 qlcnic_fw_destroy_ctx(adapter);
936
937 qlcnic_reset_rx_buffers_list(adapter);
af19b491
AKS		 938 qlcnic_release_tx_buffers(adapter);
939 spin_unlock(&adapter->tx_clean_lock);
940}
941
942/* Usage: During suspend and firmware recovery module */
943
944static void
945qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev)
946{
947 rtnl_lock();
948 if (netif_running(netdev))
949 __qlcnic_down(adapter, netdev);
950 rtnl_unlock();
951
952}
953
954static int
955qlcnic_attach(struct qlcnic_adapter *adapter)
956{
957 struct net_device *netdev = adapter->netdev;
958 struct pci_dev *pdev = adapter->pdev;
8a15ad1f 959 int err;
af19b491
AKS		 960
961 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC)
962 return 0;
963
af19b491
AKS		 964 err = qlcnic_napi_add(adapter, netdev);
965 if (err)
966 return err;
967
968 err = qlcnic_alloc_sw_resources(adapter);
969 if (err) {
970 dev_err(&pdev->dev, "Error in setting sw resources\n");
8a15ad1f 971 goto err_out_napi_del;
af19b491
AKS		 972 }
973
974 err = qlcnic_alloc_hw_resources(adapter);
975 if (err) {
976 dev_err(&pdev->dev, "Error in setting hw resources\n");
977 goto err_out_free_sw;
978 }
979
af19b491
AKS		 980 err = qlcnic_request_irq(adapter);
981 if (err) {
982 dev_err(&pdev->dev, "failed to setup interrupt\n");
8a15ad1f 983 goto err_out_free_hw;
af19b491
AKS		 984 }
985
986 qlcnic_init_coalesce_defaults(adapter);
987
988 qlcnic_create_sysfs_entries(adapter);
989
990 adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC;
991 return 0;
992
8a15ad1f 993err_out_free_hw:
af19b491
AKS		 994 qlcnic_free_hw_resources(adapter);
995err_out_free_sw:
996 qlcnic_free_sw_resources(adapter);
8a15ad1f
AKS		 997err_out_napi_del:
998 qlcnic_napi_del(adapter);
af19b491
AKS		 999 return err;
1000}
1001
1002static void
1003qlcnic_detach(struct qlcnic_adapter *adapter)
1004{
1005 if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC)
1006 return;
1007
1008 qlcnic_remove_sysfs_entries(adapter);
1009
1010 qlcnic_free_hw_resources(adapter);
1011 qlcnic_release_rx_buffers(adapter);
1012 qlcnic_free_irq(adapter);
1013 qlcnic_napi_del(adapter);
1014 qlcnic_free_sw_resources(adapter);
1015
1016 adapter->is_up = 0;
1017}
1018
7eb9855d
AKS		 1019void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings)
1020{
1021 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1022 struct qlcnic_host_sds_ring *sds_ring;
1023 int ring;
1024
78ad3892 1025 clear_bit(__QLCNIC_DEV_UP, &adapter->state);
cdaff185
AKS		 1026 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1027 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1028 sds_ring = &adapter->recv_ctx.sds_rings[ring];
1029 qlcnic_disable_int(sds_ring);
1030 }
7eb9855d
AKS		 1031 }
1032
8a15ad1f
AKS		 1033 qlcnic_fw_destroy_ctx(adapter);
1034
7eb9855d
AKS		 1035 qlcnic_detach(adapter);
1036
1037 adapter->diag_test = 0;
1038 adapter->max_sds_rings = max_sds_rings;
1039
1040 if (qlcnic_attach(adapter))
34ce3626 1041 goto out;
7eb9855d
AKS		 1042
1043 if (netif_running(netdev))
1044 __qlcnic_up(adapter, netdev);
34ce3626 1045out:
7eb9855d
AKS		 1046 netif_device_attach(netdev);
1047}
1048
1049int qlcnic_diag_alloc_res(struct net_device *netdev, int test)
1050{
1051 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1052 struct qlcnic_host_sds_ring *sds_ring;
8a15ad1f 1053 struct qlcnic_host_rds_ring *rds_ring;
7eb9855d
AKS		 1054 int ring;
1055 int ret;
1056
1057 netif_device_detach(netdev);
1058
1059 if (netif_running(netdev))
1060 __qlcnic_down(adapter, netdev);
1061
1062 qlcnic_detach(adapter);
1063
1064 adapter->max_sds_rings = 1;
1065 adapter->diag_test = test;
1066
1067 ret = qlcnic_attach(adapter);
34ce3626
AKS		 1068 if (ret) {
1069 netif_device_attach(netdev);
7eb9855d 1070 return ret;
34ce3626 1071 }
7eb9855d 1072
8a15ad1f
AKS		 1073 ret = qlcnic_fw_create_ctx(adapter);
1074 if (ret) {
1075 qlcnic_detach(adapter);
1076 return ret;
1077 }
1078
1079 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1080 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1081 qlcnic_post_rx_buffers(adapter, ring, rds_ring);
1082 }
1083
cdaff185
AKS		 1084 if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) {
1085 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1086 sds_ring = &adapter->recv_ctx.sds_rings[ring];
1087 qlcnic_enable_int(sds_ring);
1088 }
7eb9855d 1089 }
78ad3892 1090 set_bit(__QLCNIC_DEV_UP, &adapter->state);
7eb9855d
AKS		 1091
1092 return 0;
1093}
1094
68bf1c68
AKS		 1095/* Reset context in hardware only */
1096static int
1097qlcnic_reset_hw_context(struct qlcnic_adapter *adapter)
1098{
1099 struct net_device *netdev = adapter->netdev;
1100
1101 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1102 return -EBUSY;
1103
1104 netif_device_detach(netdev);
1105
1106 qlcnic_down(adapter, netdev);
1107
1108 qlcnic_up(adapter, netdev);
1109
1110 netif_device_attach(netdev);
1111
1112 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1113 return 0;
1114}
1115
af19b491
AKS		 1116int
1117qlcnic_reset_context(struct qlcnic_adapter *adapter)
1118{
1119 int err = 0;
1120 struct net_device *netdev = adapter->netdev;
1121
1122 if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
1123 return -EBUSY;
1124
1125 if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) {
1126
1127 netif_device_detach(netdev);
1128
1129 if (netif_running(netdev))
1130 __qlcnic_down(adapter, netdev);
1131
1132 qlcnic_detach(adapter);
1133
1134 if (netif_running(netdev)) {
1135 err = qlcnic_attach(adapter);
1136 if (!err)
34ce3626 1137 __qlcnic_up(adapter, netdev);
af19b491
AKS		 1138 }
1139
1140 netif_device_attach(netdev);
1141 }
1142
af19b491
AKS		 1143 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1144 return err;
1145}
1146
1147static int
1148qlcnic_setup_netdev(struct qlcnic_adapter *adapter,
1bb09fb9 1149 struct net_device *netdev, u8 pci_using_dac)
af19b491
AKS		 1150{
1151 int err;
1152 struct pci_dev *pdev = adapter->pdev;
1153
1154 adapter->rx_csum = 1;
1155 adapter->mc_enabled = 0;
1156 adapter->max_mc_count = 38;
1157
1158 netdev->netdev_ops = &qlcnic_netdev_ops;
ef71ff83 1159 netdev->watchdog_timeo = 5*HZ;
af19b491
AKS		 1160
1161 qlcnic_change_mtu(netdev, netdev->mtu);
1162
1163 SET_ETHTOOL_OPS(netdev, &qlcnic_ethtool_ops);
1164
2e9d722d
AC		 1165 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1166 NETIF_F_IPV6_CSUM | NETIF_F_GRO | NETIF_F_TSO | NETIF_F_TSO6);
af19b491 1167
2e9d722d
AC		 1168 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM |
1169 NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6);
af19b491 1170
1bb09fb9 1171 if (pci_using_dac) {
af19b491
AKS		 1172 netdev->features |= NETIF_F_HIGHDMA;
1173 netdev->vlan_features |= NETIF_F_HIGHDMA;
1174 }
1175
1176 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_FVLANTX)
1177 netdev->features |= (NETIF_F_HW_VLAN_TX);
1178
1179 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO)
1180 netdev->features |= NETIF_F_LRO;
1181
1182 netdev->irq = adapter->msix_entries[0].vector;
1183
af19b491
AKS		 1184 if (qlcnic_read_mac_addr(adapter))
1185 dev_warn(&pdev->dev, "failed to read mac addr\n");
1186
1187 netif_carrier_off(netdev);
1188 netif_stop_queue(netdev);
1189
1190 err = register_netdev(netdev);
1191 if (err) {
1192 dev_err(&pdev->dev, "failed to register net device\n");
1193 return err;
1194 }
1195
1196 return 0;
1197}
1198
1bb09fb9
AKS		 1199static int qlcnic_set_dma_mask(struct pci_dev *pdev, u8 *pci_using_dac)
1200{
1201 if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(64)) &&
1202 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)))
1203 *pci_using_dac = 1;
1204 else if (!pci_set_dma_mask(pdev, DMA_BIT_MASK(32)) &&
1205 !pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32)))
1206 *pci_using_dac = 0;
1207 else {
1208 dev_err(&pdev->dev, "Unable to set DMA mask, aborting\n");
1209 return -EIO;
1210 }
1211
1212 return 0;
1213}
1214
af19b491
AKS		 1215static int __devinit
1216qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1217{
1218 struct net_device *netdev = NULL;
1219 struct qlcnic_adapter *adapter = NULL;
1220 int err;
af19b491 1221 uint8_t revision_id;
1bb09fb9 1222 uint8_t pci_using_dac;
af19b491
AKS		 1223
1224 err = pci_enable_device(pdev);
1225 if (err)
1226 return err;
1227
1228 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1229 err = -ENODEV;
1230 goto err_out_disable_pdev;
1231 }
1232
1bb09fb9
AKS		 1233 err = qlcnic_set_dma_mask(pdev, &pci_using_dac);
1234 if (err)
1235 goto err_out_disable_pdev;
1236
af19b491
AKS		 1237 err = pci_request_regions(pdev, qlcnic_driver_name);
1238 if (err)
1239 goto err_out_disable_pdev;
1240
1241 pci_set_master(pdev);
1242
1243 netdev = alloc_etherdev(sizeof(struct qlcnic_adapter));
1244 if (!netdev) {
1245 dev_err(&pdev->dev, "failed to allocate net_device\n");
1246 err = -ENOMEM;
1247 goto err_out_free_res;
1248 }
1249
1250 SET_NETDEV_DEV(netdev, &pdev->dev);
1251
1252 adapter = netdev_priv(netdev);
1253 adapter->netdev = netdev;
1254 adapter->pdev = pdev;
6df900e9 1255 adapter->dev_rst_time = jiffies;
af19b491
AKS		 1256
1257 revision_id = pdev->revision;
1258 adapter->ahw.revision_id = revision_id;
1259
1260 rwlock_init(&adapter->ahw.crb_lock);
1261 mutex_init(&adapter->ahw.mem_lock);
1262
1263 spin_lock_init(&adapter->tx_clean_lock);
1264 INIT_LIST_HEAD(&adapter->mac_list);
1265
1266 err = qlcnic_setup_pci_map(adapter);
1267 if (err)
1268 goto err_out_free_netdev;
1269
1270 /* This will be reset for mezz cards */
2e9d722d 1271 adapter->portnum = adapter->ahw.pci_func;
af19b491
AKS		 1272
1273 err = qlcnic_get_board_info(adapter);
1274 if (err) {
1275 dev_err(&pdev->dev, "Error getting board config info.\n");
1276 goto err_out_iounmap;
1277 }
1278
02f6e46f
SC		 1279 if (qlcnic_read_mac_addr(adapter))
1280 dev_warn(&pdev->dev, "failed to read mac addr\n");
1281
b3a24649
SC		 1282 if (qlcnic_setup_idc_param(adapter))
1283 goto err_out_iounmap;
af19b491 1284
9f26f547 1285 err = adapter->nic_ops->start_firmware(adapter);
a7fc948f
AKS		 1286 if (err) {
1287 dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n");
af19b491 1288 goto err_out_decr_ref;
a7fc948f 1289 }
af19b491 1290
af19b491
AKS		 1291 qlcnic_clear_stats(adapter);
1292
1293 qlcnic_setup_intr(adapter);
1294
1bb09fb9 1295 err = qlcnic_setup_netdev(adapter, netdev, pci_using_dac);
af19b491
AKS		 1296 if (err)
1297 goto err_out_disable_msi;
1298
1299 pci_set_drvdata(pdev, adapter);
1300
1301 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1302
1303 switch (adapter->ahw.port_type) {
1304 case QLCNIC_GBE:
1305 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1306 adapter->netdev->name);
1307 break;
1308 case QLCNIC_XGBE:
1309 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1310 adapter->netdev->name);
1311 break;
1312 }
1313
1314 qlcnic_create_diag_entries(adapter);
1315
1316 return 0;
1317
1318err_out_disable_msi:
1319 qlcnic_teardown_intr(adapter);
1320
1321err_out_decr_ref:
1322 qlcnic_clr_all_drv_state(adapter);
1323
1324err_out_iounmap:
1325 qlcnic_cleanup_pci_map(adapter);
1326
1327err_out_free_netdev:
1328 free_netdev(netdev);
1329
1330err_out_free_res:
1331 pci_release_regions(pdev);
1332
1333err_out_disable_pdev:
1334 pci_set_drvdata(pdev, NULL);
1335 pci_disable_device(pdev);
1336 return err;
1337}
1338
1339static void __devexit qlcnic_remove(struct pci_dev *pdev)
1340{
1341 struct qlcnic_adapter *adapter;
1342 struct net_device *netdev;
1343
1344 adapter = pci_get_drvdata(pdev);
1345 if (adapter == NULL)
1346 return;
1347
1348 netdev = adapter->netdev;
1349
1350 qlcnic_cancel_fw_work(adapter);
1351
1352 unregister_netdev(netdev);
1353
af19b491
AKS		 1354 qlcnic_detach(adapter);
1355
2e9d722d
AC		 1356 if (adapter->npars != NULL)
1357 kfree(adapter->npars);
1358 if (adapter->eswitch != NULL)
1359 kfree(adapter->eswitch);
1360
af19b491
AKS		 1361 qlcnic_clr_all_drv_state(adapter);
1362
1363 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1364
1365 qlcnic_teardown_intr(adapter);
1366
1367 qlcnic_remove_diag_entries(adapter);
1368
1369 qlcnic_cleanup_pci_map(adapter);
1370
1371 qlcnic_release_firmware(adapter);
1372
1373 pci_release_regions(pdev);
1374 pci_disable_device(pdev);
1375 pci_set_drvdata(pdev, NULL);
1376
1377 free_netdev(netdev);
1378}
1379static int __qlcnic_shutdown(struct pci_dev *pdev)
1380{
1381 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1382 struct net_device *netdev = adapter->netdev;
1383 int retval;
1384
1385 netif_device_detach(netdev);
1386
1387 qlcnic_cancel_fw_work(adapter);
1388
1389 if (netif_running(netdev))
1390 qlcnic_down(adapter, netdev);
1391
af19b491
AKS		 1392 qlcnic_clr_all_drv_state(adapter);
1393
1394 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1395
1396 retval = pci_save_state(pdev);
1397 if (retval)
1398 return retval;
1399
1400 if (qlcnic_wol_supported(adapter)) {
1401 pci_enable_wake(pdev, PCI_D3cold, 1);
1402 pci_enable_wake(pdev, PCI_D3hot, 1);
1403 }
1404
1405 return 0;
1406}
1407
1408static void qlcnic_shutdown(struct pci_dev *pdev)
1409{
1410 if (__qlcnic_shutdown(pdev))
1411 return;
1412
1413 pci_disable_device(pdev);
1414}
1415
1416#ifdef CONFIG_PM
1417static int
1418qlcnic_suspend(struct pci_dev *pdev, pm_message_t state)
1419{
1420 int retval;
1421
1422 retval = __qlcnic_shutdown(pdev);
1423 if (retval)
1424 return retval;
1425
1426 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1427 return 0;
1428}
1429
1430static int
1431qlcnic_resume(struct pci_dev *pdev)
1432{
1433 struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
1434 struct net_device *netdev = adapter->netdev;
1435 int err;
1436
1437 err = pci_enable_device(pdev);
1438 if (err)
1439 return err;
1440
1441 pci_set_power_state(pdev, PCI_D0);
1442 pci_set_master(pdev);
1443 pci_restore_state(pdev);
1444
9f26f547 1445 err = adapter->nic_ops->start_firmware(adapter);
af19b491
AKS		 1446 if (err) {
1447 dev_err(&pdev->dev, "failed to start firmware\n");
1448 return err;
1449 }
1450
1451 if (netif_running(netdev)) {
af19b491
AKS		 1452 err = qlcnic_up(adapter, netdev);
1453 if (err)
52486a3a 1454 goto done;
af19b491
AKS		 1455
1456 qlcnic_config_indev_addr(netdev, NETDEV_UP);
1457 }
52486a3a 1458done:
af19b491
AKS		 1459 netif_device_attach(netdev);
1460 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
1461 return 0;
af19b491
AKS		 1462}
1463#endif
1464
1465static int qlcnic_open(struct net_device *netdev)
1466{
1467 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1468 int err;
1469
1470 if (adapter->driver_mismatch)
1471 return -EIO;
1472
1473 err = qlcnic_attach(adapter);
1474 if (err)
1475 return err;
1476
1477 err = __qlcnic_up(adapter, netdev);
1478 if (err)
1479 goto err_out;
1480
1481 netif_start_queue(netdev);
1482
1483 return 0;
1484
1485err_out:
1486 qlcnic_detach(adapter);
1487 return err;
1488}
1489
1490/*
1491 * qlcnic_close - Disables a network interface entry point
1492 */
1493static int qlcnic_close(struct net_device *netdev)
1494{
1495 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1496
1497 __qlcnic_down(adapter, netdev);
1498 return 0;
1499}
1500
1501static void
1502qlcnic_tso_check(struct net_device *netdev,
1503 struct qlcnic_host_tx_ring *tx_ring,
1504 struct cmd_desc_type0 *first_desc,
1505 struct sk_buff *skb)
1506{
1507 u8 opcode = TX_ETHER_PKT;
1508 __be16 protocol = skb->protocol;
1509 u16 flags = 0, vid = 0;
af19b491
AKS		 1510 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1511 struct cmd_desc_type0 *hwdesc;
1512 struct vlan_ethhdr *vh;
8bfe8b91 1513 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2e9d722d 1514 u32 producer = tx_ring->producer;
af19b491
AKS		 1515
1516 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1517
1518 vh = (struct vlan_ethhdr *)skb->data;
1519 protocol = vh->h_vlan_encapsulated_proto;
1520 flags = FLAGS_VLAN_TAGGED;
1521
1522 } else if (vlan_tx_tag_present(skb)) {
1523
1524 flags = FLAGS_VLAN_OOB;
1525 vid = vlan_tx_tag_get(skb);
1526 qlcnic_set_tx_vlan_tci(first_desc, vid);
1527 vlan_oob = 1;
1528 }
1529
2e9d722d
AC		 1530 if (*(skb->data) & BIT_0) {
1531 flags |= BIT_0;
1532 memcpy(&first_desc->eth_addr, skb->data, ETH_ALEN);
1533 }
1534
af19b491
AKS		 1535 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1536 skb_shinfo(skb)->gso_size > 0) {
1537
1538 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1539
1540 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1541 first_desc->total_hdr_length = hdr_len;
1542 if (vlan_oob) {
1543 first_desc->total_hdr_length += VLAN_HLEN;
1544 first_desc->tcp_hdr_offset = VLAN_HLEN;
1545 first_desc->ip_hdr_offset = VLAN_HLEN;
1546 /* Only in case of TSO on vlan device */
1547 flags |= FLAGS_VLAN_TAGGED;
1548 }
1549
1550 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1551 TX_TCP_LSO6 : TX_TCP_LSO;
1552 tso = 1;
1553
1554 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1555 u8 l4proto;
1556
1557 if (protocol == cpu_to_be16(ETH_P_IP)) {
1558 l4proto = ip_hdr(skb)->protocol;
1559
1560 if (l4proto == IPPROTO_TCP)
1561 opcode = TX_TCP_PKT;
1562 else if (l4proto == IPPROTO_UDP)
1563 opcode = TX_UDP_PKT;
1564 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1565 l4proto = ipv6_hdr(skb)->nexthdr;
1566
1567 if (l4proto == IPPROTO_TCP)
1568 opcode = TX_TCPV6_PKT;
1569 else if (l4proto == IPPROTO_UDP)
1570 opcode = TX_UDPV6_PKT;
1571 }
1572 }
1573
1574 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1575 first_desc->ip_hdr_offset += skb_network_offset(skb);
1576 qlcnic_set_tx_flags_opcode(first_desc, flags, opcode);
1577
1578 if (!tso)
1579 return;
1580
1581 /* For LSO, we need to copy the MAC/IP/TCP headers into
1582 * the descriptor ring
1583 */
af19b491
AKS		 1584 copied = 0;
1585 offset = 2;
1586
1587 if (vlan_oob) {
1588 /* Create a TSO vlan header template for firmware */
1589
1590 hwdesc = &tx_ring->desc_head[producer];
1591 tx_ring->cmd_buf_arr[producer].skb = NULL;
1592
1593 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1594 hdr_len + VLAN_HLEN);
1595
1596 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1597 skb_copy_from_linear_data(skb, vh, 12);
1598 vh->h_vlan_proto = htons(ETH_P_8021Q);
1599 vh->h_vlan_TCI = htons(vid);
1600 skb_copy_from_linear_data_offset(skb, 12,
1601 (char *)vh + 16, copy_len - 16);
1602
1603 copied = copy_len - VLAN_HLEN;
1604 offset = 0;
1605
1606 producer = get_next_index(producer, tx_ring->num_desc);
1607 }
1608
1609 while (copied < hdr_len) {
1610
1611 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1612 (hdr_len - copied));
1613
1614 hwdesc = &tx_ring->desc_head[producer];
1615 tx_ring->cmd_buf_arr[producer].skb = NULL;
1616
1617 skb_copy_from_linear_data_offset(skb, copied,
1618 (char *)hwdesc + offset, copy_len);
1619
1620 copied += copy_len;
1621 offset = 0;
1622
1623 producer = get_next_index(producer, tx_ring->num_desc);
1624 }
1625
1626 tx_ring->producer = producer;
1627 barrier();
8bfe8b91 1628 adapter->stats.lso_frames++;
af19b491
AKS		 1629}
1630
1631static int
1632qlcnic_map_tx_skb(struct pci_dev *pdev,
1633 struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf)
1634{
1635 struct qlcnic_skb_frag *nf;
1636 struct skb_frag_struct *frag;
1637 int i, nr_frags;
1638 dma_addr_t map;
1639
1640 nr_frags = skb_shinfo(skb)->nr_frags;
1641 nf = &pbuf->frag_array[0];
1642
1643 map = pci_map_single(pdev, skb->data,
1644 skb_headlen(skb), PCI_DMA_TODEVICE);
1645 if (pci_dma_mapping_error(pdev, map))
1646 goto out_err;
1647
1648 nf->dma = map;
1649 nf->length = skb_headlen(skb);
1650
1651 for (i = 0; i < nr_frags; i++) {
1652 frag = &skb_shinfo(skb)->frags[i];
1653 nf = &pbuf->frag_array[i+1];
1654
1655 map = pci_map_page(pdev, frag->page, frag->page_offset,
1656 frag->size, PCI_DMA_TODEVICE);
1657 if (pci_dma_mapping_error(pdev, map))
1658 goto unwind;
1659
1660 nf->dma = map;
1661 nf->length = frag->size;
1662 }
1663
1664 return 0;
1665
1666unwind:
1667 while (--i >= 0) {
1668 nf = &pbuf->frag_array[i+1];
1669 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1670 }
1671
1672 nf = &pbuf->frag_array[0];
1673 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1674
1675out_err:
1676 return -ENOMEM;
1677}
1678
1679static inline void
1680qlcnic_clear_cmddesc(u64 *desc)
1681{
1682 desc[0] = 0ULL;
1683 desc[2] = 0ULL;
1684}
1685
cdaff185 1686netdev_tx_t
af19b491
AKS		 1687qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1688{
1689 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1690 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
1691 struct qlcnic_cmd_buffer *pbuf;
1692 struct qlcnic_skb_frag *buffrag;
1693 struct cmd_desc_type0 *hwdesc, *first_desc;
1694 struct pci_dev *pdev;
1695 int i, k;
1696
1697 u32 producer;
1698 int frag_count, no_of_desc;
1699 u32 num_txd = tx_ring->num_desc;
1700
780ab790
AKS		 1701 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
1702 netif_stop_queue(netdev);
1703 return NETDEV_TX_BUSY;
1704 }
1705
af19b491
AKS		 1706 frag_count = skb_shinfo(skb)->nr_frags + 1;
1707
1708 /* 4 fragments per cmd des */
1709 no_of_desc = (frag_count + 3) >> 2;
1710
ef71ff83 1711 if (unlikely(qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
af19b491 1712 netif_stop_queue(netdev);
ef71ff83
RB		 1713 smp_mb();
1714 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH)
1715 netif_start_queue(netdev);
1716 else {
1717 adapter->stats.xmit_off++;
1718 return NETDEV_TX_BUSY;
1719 }
af19b491
AKS		 1720 }
1721
1722 producer = tx_ring->producer;
1723 pbuf = &tx_ring->cmd_buf_arr[producer];
1724
1725 pdev = adapter->pdev;
1726
8ae6df97
AKS		 1727 if (qlcnic_map_tx_skb(pdev, skb, pbuf)) {
1728 adapter->stats.tx_dma_map_error++;
af19b491 1729 goto drop_packet;
8ae6df97 1730 }
af19b491
AKS		 1731
1732 pbuf->skb = skb;
1733 pbuf->frag_count = frag_count;
1734
1735 first_desc = hwdesc = &tx_ring->desc_head[producer];
1736 qlcnic_clear_cmddesc((u64 *)hwdesc);
1737
1738 qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len);
1739 qlcnic_set_tx_port(first_desc, adapter->portnum);
1740
1741 for (i = 0; i < frag_count; i++) {
1742
1743 k = i % 4;
1744
1745 if ((k == 0) && (i > 0)) {
1746 /* move to next desc.*/
1747 producer = get_next_index(producer, num_txd);
1748 hwdesc = &tx_ring->desc_head[producer];
1749 qlcnic_clear_cmddesc((u64 *)hwdesc);
1750 tx_ring->cmd_buf_arr[producer].skb = NULL;
1751 }
1752
1753 buffrag = &pbuf->frag_array[i];
1754
1755 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
1756 switch (k) {
1757 case 0:
1758 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1759 break;
1760 case 1:
1761 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
1762 break;
1763 case 2:
1764 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
1765 break;
1766 case 3:
1767 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
1768 break;
1769 }
1770 }
1771
1772 tx_ring->producer = get_next_index(producer, num_txd);
1773
1774 qlcnic_tso_check(netdev, tx_ring, first_desc, skb);
1775
1776 qlcnic_update_cmd_producer(adapter, tx_ring);
1777
1778 adapter->stats.txbytes += skb->len;
1779 adapter->stats.xmitcalled++;
1780
1781 return NETDEV_TX_OK;
1782
1783drop_packet:
1784 adapter->stats.txdropped++;
1785 dev_kfree_skb_any(skb);
1786 return NETDEV_TX_OK;
1787}
1788
1789static int qlcnic_check_temp(struct qlcnic_adapter *adapter)
1790{
1791 struct net_device *netdev = adapter->netdev;
1792 u32 temp, temp_state, temp_val;
1793 int rv = 0;
1794
1795 temp = QLCRD32(adapter, CRB_TEMP_STATE);
1796
1797 temp_state = qlcnic_get_temp_state(temp);
1798 temp_val = qlcnic_get_temp_val(temp);
1799
1800 if (temp_state == QLCNIC_TEMP_PANIC) {
1801 dev_err(&netdev->dev,
1802 "Device temperature %d degrees C exceeds"
1803 " maximum allowed. Hardware has been shut down.\n",
1804 temp_val);
1805 rv = 1;
1806 } else if (temp_state == QLCNIC_TEMP_WARN) {
1807 if (adapter->temp == QLCNIC_TEMP_NORMAL) {
1808 dev_err(&netdev->dev,
1809 "Device temperature %d degrees C "
1810 "exceeds operating range."
1811 " Immediate action needed.\n",
1812 temp_val);
1813 }
1814 } else {
1815 if (adapter->temp == QLCNIC_TEMP_WARN) {
1816 dev_info(&netdev->dev,
1817 "Device temperature is now %d degrees C"
1818 " in normal range.\n", temp_val);
1819 }
1820 }
1821 adapter->temp = temp_state;
1822 return rv;
1823}
1824
1825void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup)
1826{
1827 struct net_device *netdev = adapter->netdev;
1828
1829 if (adapter->ahw.linkup && !linkup) {
1830 dev_info(&netdev->dev, "NIC Link is down\n");
1831 adapter->ahw.linkup = 0;
1832 if (netif_running(netdev)) {
1833 netif_carrier_off(netdev);
1834 netif_stop_queue(netdev);
1835 }
1836 } else if (!adapter->ahw.linkup && linkup) {
1837 dev_info(&netdev->dev, "NIC Link is up\n");
1838 adapter->ahw.linkup = 1;
1839 if (netif_running(netdev)) {
1840 netif_carrier_on(netdev);
1841 netif_wake_queue(netdev);
1842 }
1843 }
1844}
1845
1846static void qlcnic_tx_timeout(struct net_device *netdev)
1847{
1848 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1849
1850 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
1851 return;
1852
1853 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
af19b491
AKS		 1854
1855 if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS)
68bf1c68
AKS		 1856 adapter->need_fw_reset = 1;
1857 else
1858 adapter->reset_context = 1;
af19b491
AKS		 1859}
1860
1861static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev)
1862{
1863 struct qlcnic_adapter *adapter = netdev_priv(netdev);
1864 struct net_device_stats *stats = &netdev->stats;
1865
1866 memset(stats, 0, sizeof(*stats));
1867
1868 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
1869 stats->tx_packets = adapter->stats.xmitfinished;
7e382594 1870 stats->rx_bytes = adapter->stats.rxbytes + adapter->stats.lrobytes;
af19b491
AKS		 1871 stats->tx_bytes = adapter->stats.txbytes;
1872 stats->rx_dropped = adapter->stats.rxdropped;
1873 stats->tx_dropped = adapter->stats.txdropped;
1874
1875 return stats;
1876}
1877
7eb9855d 1878static irqreturn_t qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter)
af19b491 1879{
af19b491
AKS		 1880 u32 status;
1881
1882 status = readl(adapter->isr_int_vec);
1883
1884 if (!(status & adapter->int_vec_bit))
1885 return IRQ_NONE;
1886
1887 /* check interrupt state machine, to be sure */
1888 status = readl(adapter->crb_int_state_reg);
1889 if (!ISR_LEGACY_INT_TRIGGERED(status))
1890 return IRQ_NONE;
1891
1892 writel(0xffffffff, adapter->tgt_status_reg);
1893 /* read twice to ensure write is flushed */
1894 readl(adapter->isr_int_vec);
1895 readl(adapter->isr_int_vec);
1896
7eb9855d
AKS		 1897 return IRQ_HANDLED;
1898}
1899
1900static irqreturn_t qlcnic_tmp_intr(int irq, void *data)
1901{
1902 struct qlcnic_host_sds_ring *sds_ring = data;
1903 struct qlcnic_adapter *adapter = sds_ring->adapter;
1904
1905 if (adapter->flags & QLCNIC_MSIX_ENABLED)
1906 goto done;
1907 else if (adapter->flags & QLCNIC_MSI_ENABLED) {
1908 writel(0xffffffff, adapter->tgt_status_reg);
1909 goto done;
1910 }
1911
1912 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
1913 return IRQ_NONE;
1914
1915done:
1916 adapter->diag_cnt++;
1917 qlcnic_enable_int(sds_ring);
1918 return IRQ_HANDLED;
1919}
1920
1921static irqreturn_t qlcnic_intr(int irq, void *data)
1922{
1923 struct qlcnic_host_sds_ring *sds_ring = data;
1924 struct qlcnic_adapter *adapter = sds_ring->adapter;
1925
1926 if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE)
1927 return IRQ_NONE;
1928
af19b491
AKS		 1929 napi_schedule(&sds_ring->napi);
1930
1931 return IRQ_HANDLED;
1932}
1933
1934static irqreturn_t qlcnic_msi_intr(int irq, void *data)
1935{
1936 struct qlcnic_host_sds_ring *sds_ring = data;
1937 struct qlcnic_adapter *adapter = sds_ring->adapter;
1938
1939 /* clear interrupt */
1940 writel(0xffffffff, adapter->tgt_status_reg);
1941
1942 napi_schedule(&sds_ring->napi);
1943 return IRQ_HANDLED;
1944}
1945
1946static irqreturn_t qlcnic_msix_intr(int irq, void *data)
1947{
1948 struct qlcnic_host_sds_ring *sds_ring = data;
1949
1950 napi_schedule(&sds_ring->napi);
1951 return IRQ_HANDLED;
1952}
1953
1954static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter)
1955{
1956 u32 sw_consumer, hw_consumer;
1957 int count = 0, i;
1958 struct qlcnic_cmd_buffer *buffer;
1959 struct pci_dev *pdev = adapter->pdev;
1960 struct net_device *netdev = adapter->netdev;
1961 struct qlcnic_skb_frag *frag;
1962 int done;
1963 struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring;
1964
1965 if (!spin_trylock(&adapter->tx_clean_lock))
1966 return 1;
1967
1968 sw_consumer = tx_ring->sw_consumer;
1969 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
1970
1971 while (sw_consumer != hw_consumer) {
1972 buffer = &tx_ring->cmd_buf_arr[sw_consumer];
1973 if (buffer->skb) {
1974 frag = &buffer->frag_array[0];
1975 pci_unmap_single(pdev, frag->dma, frag->length,
1976 PCI_DMA_TODEVICE);
1977 frag->dma = 0ULL;
1978 for (i = 1; i < buffer->frag_count; i++) {
1979 frag++;
1980 pci_unmap_page(pdev, frag->dma, frag->length,
1981 PCI_DMA_TODEVICE);
1982 frag->dma = 0ULL;
1983 }
1984
1985 adapter->stats.xmitfinished++;
1986 dev_kfree_skb_any(buffer->skb);
1987 buffer->skb = NULL;
1988 }
1989
1990 sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc);
1991 if (++count >= MAX_STATUS_HANDLE)
1992 break;
1993 }
1994
1995 if (count && netif_running(netdev)) {
1996 tx_ring->sw_consumer = sw_consumer;
1997
1998 smp_mb();
1999
2000 if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) {
af19b491
AKS		 2001 if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) {
2002 netif_wake_queue(netdev);
8bfe8b91 2003 adapter->stats.xmit_on++;
af19b491 2004 }
af19b491 2005 }
ef71ff83 2006 adapter->tx_timeo_cnt = 0;
af19b491
AKS		 2007 }
2008 /*
2009 * If everything is freed up to consumer then check if the ring is full
2010 * If the ring is full then check if more needs to be freed and
2011 * schedule the call back again.
2012 *
2013 * This happens when there are 2 CPUs. One could be freeing and the
2014 * other filling it. If the ring is full when we get out of here and
2015 * the card has already interrupted the host then the host can miss the
2016 * interrupt.
2017 *
2018 * There is still a possible race condition and the host could miss an
2019 * interrupt. The card has to take care of this.
2020 */
2021 hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer));
2022 done = (sw_consumer == hw_consumer);
2023 spin_unlock(&adapter->tx_clean_lock);
2024
2025 return done;
2026}
2027
2028static int qlcnic_poll(struct napi_struct *napi, int budget)
2029{
2030 struct qlcnic_host_sds_ring *sds_ring =
2031 container_of(napi, struct qlcnic_host_sds_ring, napi);
2032
2033 struct qlcnic_adapter *adapter = sds_ring->adapter;
2034
2035 int tx_complete;
2036 int work_done;
2037
2038 tx_complete = qlcnic_process_cmd_ring(adapter);
2039
2040 work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2041
2042 if ((work_done < budget) && tx_complete) {
2043 napi_complete(&sds_ring->napi);
2044 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2045 qlcnic_enable_int(sds_ring);
2046 }
2047
2048 return work_done;
2049}
2050
8f891387 2051static int qlcnic_rx_poll(struct napi_struct *napi, int budget)
2052{
2053 struct qlcnic_host_sds_ring *sds_ring =
2054 container_of(napi, struct qlcnic_host_sds_ring, napi);
2055
2056 struct qlcnic_adapter *adapter = sds_ring->adapter;
2057 int work_done;
2058
2059 work_done = qlcnic_process_rcv_ring(sds_ring, budget);
2060
2061 if (work_done < budget) {
2062 napi_complete(&sds_ring->napi);
2063 if (test_bit(__QLCNIC_DEV_UP, &adapter->state))
2064 qlcnic_enable_int(sds_ring);
2065 }
2066
2067 return work_done;
2068}
2069
af19b491
AKS		 2070#ifdef CONFIG_NET_POLL_CONTROLLER
2071static void qlcnic_poll_controller(struct net_device *netdev)
2072{
2073 struct qlcnic_adapter *adapter = netdev_priv(netdev);
2074 disable_irq(adapter->irq);
2075 qlcnic_intr(adapter->irq, adapter);
2076 enable_irq(adapter->irq);
2077}
2078#endif
2079
6df900e9
SC		 2080static void
2081qlcnic_idc_debug_info(struct qlcnic_adapter *adapter, u8 encoding)
2082{
2083 u32 val;
2084
2085 val = adapter->portnum & 0xf;
2086 val |= encoding << 7;
2087 val |= (jiffies - adapter->dev_rst_time) << 8;
2088
2089 QLCWR32(adapter, QLCNIC_CRB_DRV_SCRATCH, val);
2090 adapter->dev_rst_time = jiffies;
2091}
2092
ade91f8e
AKS		 2093static int
2094qlcnic_set_drv_state(struct qlcnic_adapter *adapter, u8 state)
af19b491
AKS		 2095{
2096 u32 val;
2097
2098 WARN_ON(state != QLCNIC_DEV_NEED_RESET &&
2099 state != QLCNIC_DEV_NEED_QUISCENT);
2100
2101 if (qlcnic_api_lock(adapter))
ade91f8e 2102 return -EIO;
af19b491
AKS		 2103
2104 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2105
2106 if (state == QLCNIC_DEV_NEED_RESET)
6d2a4724 2107 QLC_DEV_SET_RST_RDY(val, adapter->portnum);
af19b491 2108 else if (state == QLCNIC_DEV_NEED_QUISCENT)
6d2a4724 2109 QLC_DEV_SET_QSCNT_RDY(val, adapter->portnum);
af19b491
AKS		 2110
2111 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2112
2113 qlcnic_api_unlock(adapter);
ade91f8e
AKS		 2114
2115 return 0;
af19b491
AKS		 2116}
2117
1b95a839
AKS		 2118static int
2119qlcnic_clr_drv_state(struct qlcnic_adapter *adapter)
2120{
2121 u32 val;
2122
2123 if (qlcnic_api_lock(adapter))
2124 return -EBUSY;
2125
2126 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2127 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
1b95a839
AKS		 2128 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2129
2130 qlcnic_api_unlock(adapter);
2131
2132 return 0;
2133}
2134
af19b491
AKS		 2135static void
2136qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter)
2137{
2138 u32 val;
2139
2140 if (qlcnic_api_lock(adapter))
2141 goto err;
2142
2143 val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
6d2a4724 2144 QLC_DEV_CLR_REF_CNT(val, adapter->portnum);
af19b491
AKS		 2145 QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val);
2146
2147 if (!(val & 0x11111111))
2148 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD);
2149
2150 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2151 QLC_DEV_CLR_RST_QSCNT(val, adapter->portnum);
af19b491
AKS		 2152 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2153
2154 qlcnic_api_unlock(adapter);
2155err:
2156 adapter->fw_fail_cnt = 0;
2157 clear_bit(__QLCNIC_START_FW, &adapter->state);
2158 clear_bit(__QLCNIC_RESETTING, &adapter->state);
2159}
2160
f73dfc50 2161/* Grab api lock, before checking state */
af19b491
AKS		 2162static int
2163qlcnic_check_drv_state(struct qlcnic_adapter *adapter)
2164{
2165 int act, state;
2166
2167 state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
2168 act = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
2169
2170 if (((state & 0x11111111) == (act & 0x11111111)) ||
2171 ((act & 0x11111111) == ((state >> 1) & 0x11111111)))
2172 return 0;
2173 else
2174 return 1;
2175}
2176
96f8118c
SC		 2177static int qlcnic_check_idc_ver(struct qlcnic_adapter *adapter)
2178{
2179 u32 val = QLCRD32(adapter, QLCNIC_CRB_DRV_IDC_VER);
2180
2181 if (val != QLCNIC_DRV_IDC_VER) {
2182 dev_warn(&adapter->pdev->dev, "IDC Version mismatch, driver's"
2183 " idc ver = %x; reqd = %x\n", QLCNIC_DRV_IDC_VER, val);
2184 }
2185
2186 return 0;
2187}
2188
af19b491
AKS		 2189static int
2190qlcnic_can_start_firmware(struct qlcnic_adapter *adapter)
2191{
2192 u32 val, prev_state;
aa5e18c0 2193 u8 dev_init_timeo = adapter->dev_init_timeo;
6d2a4724 2194 u8 portnum = adapter->portnum;
96f8118c 2195 u8 ret;
af19b491 2196
f73dfc50
AKS		 2197 if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state))
2198 return 1;
2199
af19b491
AKS		 2200 if (qlcnic_api_lock(adapter))
2201 return -1;
2202
2203 val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT);
6d2a4724
AKS		 2204 if (!(val & (1 << (portnum * 4)))) {
2205 QLC_DEV_SET_REF_CNT(val, portnum);
af19b491 2206 QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val);
af19b491
AKS		 2207 }
2208
2209 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
65b5b420 2210 QLCDB(adapter, HW, "Device state = %u\n", prev_state);
af19b491
AKS		 2211
2212 switch (prev_state) {
2213 case QLCNIC_DEV_COLD:
bbd8c6a4 2214 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITIALIZING);
96f8118c 2215 QLCWR32(adapter, QLCNIC_CRB_DRV_IDC_VER, QLCNIC_DRV_IDC_VER);
6df900e9 2216 qlcnic_idc_debug_info(adapter, 0);
af19b491
AKS		 2217 qlcnic_api_unlock(adapter);
2218 return 1;
2219
2220 case QLCNIC_DEV_READY:
96f8118c 2221 ret = qlcnic_check_idc_ver(adapter);
af19b491 2222 qlcnic_api_unlock(adapter);
96f8118c 2223 return ret;
af19b491
AKS		 2224
2225 case QLCNIC_DEV_NEED_RESET:
2226 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2227 QLC_DEV_SET_RST_RDY(val, portnum);
af19b491
AKS		 2228 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2229 break;
2230
2231 case QLCNIC_DEV_NEED_QUISCENT:
2232 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2233 QLC_DEV_SET_QSCNT_RDY(val, portnum);
af19b491
AKS		 2234 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2235 break;
2236
2237 case QLCNIC_DEV_FAILED:
a7fc948f 2238 dev_err(&adapter->pdev->dev, "Device in failed state.\n");
af19b491
AKS		 2239 qlcnic_api_unlock(adapter);
2240 return -1;
bbd8c6a4
AKS		 2241
2242 case QLCNIC_DEV_INITIALIZING:
2243 case QLCNIC_DEV_QUISCENT:
2244 break;
af19b491
AKS		 2245 }
2246
2247 qlcnic_api_unlock(adapter);
aa5e18c0
SC		 2248
2249 do {
af19b491 2250 msleep(1000);
a5e463d0
SC		 2251 prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2252
2253 if (prev_state == QLCNIC_DEV_QUISCENT)
2254 continue;
2255 } while ((prev_state != QLCNIC_DEV_READY) && --dev_init_timeo);
af19b491 2256
65b5b420
AKS		 2257 if (!dev_init_timeo) {
2258 dev_err(&adapter->pdev->dev,
2259 "Waiting for device to initialize timeout\n");
af19b491 2260 return -1;
65b5b420 2261 }
af19b491
AKS		 2262
2263 if (qlcnic_api_lock(adapter))
2264 return -1;
2265
2266 val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE);
6d2a4724 2267 QLC_DEV_CLR_RST_QSCNT(val, portnum);
af19b491
AKS		 2268 QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val);
2269
96f8118c 2270 ret = qlcnic_check_idc_ver(adapter);
af19b491
AKS		 2271 qlcnic_api_unlock(adapter);
2272
96f8118c 2273 return ret;
af19b491
AKS		 2274}
2275
2276static void
2277qlcnic_fwinit_work(struct work_struct *work)
2278{
2279 struct qlcnic_adapter *adapter = container_of(work,
2280 struct qlcnic_adapter, fw_work.work);
9f26f547 2281 u32 dev_state = 0xf, npar_state;
af19b491 2282
f73dfc50
AKS		 2283 if (qlcnic_api_lock(adapter))
2284 goto err_ret;
af19b491 2285
a5e463d0
SC		 2286 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2287 if (dev_state == QLCNIC_DEV_QUISCENT) {
2288 qlcnic_api_unlock(adapter);
2289 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2290 FW_POLL_DELAY * 2);
2291 return;
2292 }
2293
9f26f547
AC		 2294 if (adapter->op_mode == QLCNIC_NON_PRIV_FUNC) {
2295 npar_state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2296 if (npar_state == QLCNIC_DEV_NPAR_RDY) {
2297 qlcnic_api_unlock(adapter);
2298 goto wait_npar;
2299 } else {
2300 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2301 FW_POLL_DELAY);
2302 qlcnic_api_unlock(adapter);
2303 return;
2304 }
2305 }
2306
f73dfc50
AKS		 2307 if (adapter->fw_wait_cnt++ > adapter->reset_ack_timeo) {
2308 dev_err(&adapter->pdev->dev, "Reset:Failed to get ack %d sec\n",
2309 adapter->reset_ack_timeo);
2310 goto skip_ack_check;
2311 }
2312
2313 if (!qlcnic_check_drv_state(adapter)) {
2314skip_ack_check:
2315 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
a5e463d0
SC		 2316
2317 if (dev_state == QLCNIC_DEV_NEED_QUISCENT) {
2318 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2319 QLCNIC_DEV_QUISCENT);
2320 qlcnic_schedule_work(adapter, qlcnic_fwinit_work,
2321 FW_POLL_DELAY * 2);
2322 QLCDB(adapter, DRV, "Quiscing the driver\n");
6df900e9
SC		 2323 qlcnic_idc_debug_info(adapter, 0);
2324
a5e463d0
SC		 2325 qlcnic_api_unlock(adapter);
2326 return;
2327 }
2328
f73dfc50
AKS		 2329 if (dev_state == QLCNIC_DEV_NEED_RESET) {
2330 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE,
2331 QLCNIC_DEV_INITIALIZING);
2332 set_bit(__QLCNIC_START_FW, &adapter->state);
2333 QLCDB(adapter, DRV, "Restarting fw\n");
6df900e9 2334 qlcnic_idc_debug_info(adapter, 0);
af19b491
AKS		 2335 }
2336
f73dfc50
AKS		 2337 qlcnic_api_unlock(adapter);
2338
9f26f547 2339 if (!adapter->nic_ops->start_firmware(adapter)) {
af19b491
AKS		 2340 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2341 return;
2342 }
af19b491
AKS		 2343 goto err_ret;
2344 }
2345
f73dfc50 2346 qlcnic_api_unlock(adapter);
aa5e18c0 2347
9f26f547 2348wait_npar:
af19b491 2349 dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
f73dfc50 2350 QLCDB(adapter, HW, "Func waiting: Device state=%u\n", dev_state);
65b5b420 2351
af19b491 2352 switch (dev_state) {
a5e463d0
SC		 2353 case QLCNIC_DEV_QUISCENT:
2354 case QLCNIC_DEV_NEED_QUISCENT:
f73dfc50
AKS		 2355 case QLCNIC_DEV_NEED_RESET:
2356 qlcnic_schedule_work(adapter,
2357 qlcnic_fwinit_work, FW_POLL_DELAY);
2358 return;
af19b491
AKS		 2359 case QLCNIC_DEV_FAILED:
2360 break;
2361
2362 default:
9f26f547 2363 if (!adapter->nic_ops->start_firmware(adapter)) {
f73dfc50
AKS		 2364 qlcnic_schedule_work(adapter, qlcnic_attach_work, 0);
2365 return;
2366 }
af19b491
AKS		 2367 }
2368
2369err_ret:
f73dfc50
AKS		 2370 dev_err(&adapter->pdev->dev, "Fwinit work failed state=%u "
2371 "fw_wait_cnt=%u\n", dev_state, adapter->fw_wait_cnt);
34ce3626 2372 netif_device_attach(adapter->netdev);
af19b491
AKS		 2373 qlcnic_clr_all_drv_state(adapter);
2374}
2375
2376static void
2377qlcnic_detach_work(struct work_struct *work)
2378{
2379 struct qlcnic_adapter *adapter = container_of(work,
2380 struct qlcnic_adapter, fw_work.work);
2381 struct net_device *netdev = adapter->netdev;
2382 u32 status;
2383
2384 netif_device_detach(netdev);
2385
2386 qlcnic_down(adapter, netdev);
2387
af19b491
AKS		 2388 status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1);
2389
2390 if (status & QLCNIC_RCODE_FATAL_ERROR)
2391 goto err_ret;
2392
2393 if (adapter->temp == QLCNIC_TEMP_PANIC)
2394 goto err_ret;
2395
ade91f8e
AKS		 2396 if (qlcnic_set_drv_state(adapter, adapter->dev_state))
2397 goto err_ret;
af19b491
AKS		 2398
2399 adapter->fw_wait_cnt = 0;
2400
2401 qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY);
2402
2403 return;
2404
2405err_ret:
65b5b420
AKS		 2406 dev_err(&adapter->pdev->dev, "detach failed; status=%d temp=%d\n",
2407 status, adapter->temp);
34ce3626 2408 netif_device_attach(netdev);
af19b491
AKS		 2409 qlcnic_clr_all_drv_state(adapter);
2410
2411}
2412
f73dfc50 2413/*Transit to RESET state from READY state only */
af19b491
AKS		 2414static void
2415qlcnic_dev_request_reset(struct qlcnic_adapter *adapter)
2416{
2417 u32 state;
2418
2419 if (qlcnic_api_lock(adapter))
2420 return;
2421
2422 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2423
f73dfc50 2424 if (state == QLCNIC_DEV_READY) {
af19b491 2425 QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET);
65b5b420 2426 QLCDB(adapter, DRV, "NEED_RESET state set\n");
6df900e9 2427 qlcnic_idc_debug_info(adapter, 0);
af19b491
AKS		 2428 }
2429
2430 qlcnic_api_unlock(adapter);
2431}
2432
9f26f547
AC		 2433/* Transit to NPAR READY state from NPAR NOT READY state */
2434static void
2435qlcnic_dev_set_npar_ready(struct qlcnic_adapter *adapter)
2436{
2437 u32 state;
2438
9f26f547
AC		 2439 if (qlcnic_api_lock(adapter))
2440 return;
2441
2442 state = QLCRD32(adapter, QLCNIC_CRB_DEV_NPAR_STATE);
2443
2444 if (state != QLCNIC_DEV_NPAR_RDY) {
2445 QLCWR32(adapter, QLCNIC_CRB_DEV_NPAR_STATE,
2446 QLCNIC_DEV_NPAR_RDY);
2447 QLCDB(adapter, DRV, "NPAR READY state set\n");
2448 }
2449
2450 qlcnic_api_unlock(adapter);
2451}
2452
af19b491
AKS		 2453static void
2454qlcnic_schedule_work(struct qlcnic_adapter *adapter,
2455 work_func_t func, int delay)
2456{
2457 INIT_DELAYED_WORK(&adapter->fw_work, func);
2458 schedule_delayed_work(&adapter->fw_work, round_jiffies_relative(delay));
2459}
2460
2461static void
2462qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter)
2463{
2464 while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state))
2465 msleep(10);
2466
2467 cancel_delayed_work_sync(&adapter->fw_work);
2468}
2469
2470static void
2471qlcnic_attach_work(struct work_struct *work)
2472{
2473 struct qlcnic_adapter *adapter = container_of(work,
2474 struct qlcnic_adapter, fw_work.work);
2475 struct net_device *netdev = adapter->netdev;
af19b491
AKS		 2476
2477 if (netif_running(netdev)) {
52486a3a 2478 if (qlcnic_up(adapter, netdev))
af19b491 2479 goto done;
af19b491
AKS		 2480
2481 qlcnic_config_indev_addr(netdev, NETDEV_UP);
2482 }
2483
af19b491 2484done:
34ce3626 2485 netif_device_attach(netdev);
af19b491
AKS		 2486 adapter->fw_fail_cnt = 0;
2487 clear_bit(__QLCNIC_RESETTING, &adapter->state);
1b95a839
AKS		 2488
2489 if (!qlcnic_clr_drv_state(adapter))
2490 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work,
2491 FW_POLL_DELAY);
af19b491
AKS		 2492}
2493
2494static int
2495qlcnic_check_health(struct qlcnic_adapter *adapter)
2496{
2497 u32 state = 0, heartbit;
2498 struct net_device *netdev = adapter->netdev;
2499
2500 if (qlcnic_check_temp(adapter))
2501 goto detach;
2502
2372a5f1 2503 if (adapter->need_fw_reset)
af19b491 2504 qlcnic_dev_request_reset(adapter);
af19b491
AKS		 2505
2506 state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE);
2507 if (state == QLCNIC_DEV_NEED_RESET || state == QLCNIC_DEV_NEED_QUISCENT)
2508 adapter->need_fw_reset = 1;
2509
2510 heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER);
2511 if (heartbit != adapter->heartbit) {
2512 adapter->heartbit = heartbit;
2513 adapter->fw_fail_cnt = 0;
2514 if (adapter->need_fw_reset)
2515 goto detach;
68bf1c68
AKS		 2516
2517 if (adapter->reset_context) {
2518 qlcnic_reset_hw_context(adapter);
2519 adapter->netdev->trans_start = jiffies;
2520 }
2521
af19b491
AKS		 2522 return 0;
2523 }
2524
2525 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2526 return 0;
2527
2528 qlcnic_dev_request_reset(adapter);
2529
2530 clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state);
2531
2532 dev_info(&netdev->dev, "firmware hang detected\n");
2533
2534detach:
2535 adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state :
2536 QLCNIC_DEV_NEED_RESET;
2537
2538 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
65b5b420
AKS		 2539 !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) {
2540
af19b491 2541 qlcnic_schedule_work(adapter, qlcnic_detach_work, 0);
65b5b420
AKS		 2542 QLCDB(adapter, DRV, "fw recovery scheduled.\n");
2543 }
af19b491
AKS		 2544
2545 return 1;
2546}
2547
2548static void
2549qlcnic_fw_poll_work(struct work_struct *work)
2550{
2551 struct qlcnic_adapter *adapter = container_of(work,
2552 struct qlcnic_adapter, fw_work.work);
2553
2554 if (test_bit(__QLCNIC_RESETTING, &adapter->state))
2555 goto reschedule;
2556
2557
2558 if (qlcnic_check_health(adapter))
2559 return;
2560
2561reschedule:
2562 qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY);
2563}
2564
87eb743b
AC		 2565static int
2566qlcnicvf_start_firmware(struct qlcnic_adapter *adapter)
2567{
2568 int err;
2569
2570 err = qlcnic_can_start_firmware(adapter);
2571 if (err)
2572 return err;
2573
2574 qlcnic_check_options(adapter);
2575
2576 adapter->need_fw_reset = 0;
2577
2578 return err;
2579}
2580
2581static int
2582qlcnicvf_config_bridged_mode(struct qlcnic_adapter *adapter, u32 enable)
2583{
2584 return -EOPNOTSUPP;
2585}
2586
2587static int
2588qlcnicvf_config_led(struct qlcnic_adapter *adapter, u32 state, u32 rate)
2589{
2590 return -EOPNOTSUPP;
2591}
2592
2593static int
2594qlcnicvf_set_ilb_mode(struct qlcnic_adapter *adapter)
2595{
2596 return -EOPNOTSUPP;
2597}
2598
2599static void
2600qlcnicvf_clear_ilb_mode(struct qlcnic_adapter *adapter)
2601{
2602 return;
2603}
2604
af19b491
AKS		 2605static ssize_t
2606qlcnic_store_bridged_mode(struct device *dev,
2607 struct device_attribute *attr, const char *buf, size_t len)
2608{
2609 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2610 unsigned long new;
2611 int ret = -EINVAL;
2612
2613 if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG))
2614 goto err_out;
2615
8a15ad1f 2616 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
af19b491
AKS		 2617 goto err_out;
2618
2619 if (strict_strtoul(buf, 2, &new))
2620 goto err_out;
2621
2e9d722d 2622 if (!adapter->nic_ops->config_bridged_mode(adapter, !!new))
af19b491
AKS		 2623 ret = len;
2624
2625err_out:
2626 return ret;
2627}
2628
2629static ssize_t
2630qlcnic_show_bridged_mode(struct device *dev,
2631 struct device_attribute *attr, char *buf)
2632{
2633 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2634 int bridged_mode = 0;
2635
2636 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
2637 bridged_mode = !!(adapter->flags & QLCNIC_BRIDGE_ENABLED);
2638
2639 return sprintf(buf, "%d\n", bridged_mode);
2640}
2641
2642static struct device_attribute dev_attr_bridged_mode = {
2643 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2644 .show = qlcnic_show_bridged_mode,
2645 .store = qlcnic_store_bridged_mode,
2646};
2647
2648static ssize_t
2649qlcnic_store_diag_mode(struct device *dev,
2650 struct device_attribute *attr, const char *buf, size_t len)
2651{
2652 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2653 unsigned long new;
2654
2655 if (strict_strtoul(buf, 2, &new))
2656 return -EINVAL;
2657
2658 if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED))
2659 adapter->flags ^= QLCNIC_DIAG_ENABLED;
2660
2661 return len;
2662}
2663
2664static ssize_t
2665qlcnic_show_diag_mode(struct device *dev,
2666 struct device_attribute *attr, char *buf)
2667{
2668 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2669
2670 return sprintf(buf, "%d\n",
2671 !!(adapter->flags & QLCNIC_DIAG_ENABLED));
2672}
2673
2674static struct device_attribute dev_attr_diag_mode = {
2675 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2676 .show = qlcnic_show_diag_mode,
2677 .store = qlcnic_store_diag_mode,
2678};
2679
2680static int
2681qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter,
2682 loff_t offset, size_t size)
2683{
897e8c7c
DP		 2684 size_t crb_size = 4;
2685
af19b491
AKS		 2686 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
2687 return -EIO;
2688
897e8c7c
DP		 2689 if (offset < QLCNIC_PCI_CRBSPACE) {
2690 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM,
2691 QLCNIC_PCI_CAMQM_END))
2692 crb_size = 8;
2693 else
2694 return -EINVAL;
2695 }
af19b491 2696
897e8c7c
DP		 2697 if ((size != crb_size) || (offset & (crb_size-1)))
2698 return -EINVAL;
af19b491
AKS		 2699
2700 return 0;
2701}
2702
2703static ssize_t
2c3c8bea
CW		 2704qlcnic_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2705 struct bin_attribute *attr,
af19b491
AKS		 2706 char *buf, loff_t offset, size_t size)
2707{
2708 struct device *dev = container_of(kobj, struct device, kobj);
2709 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2710 u32 data;
897e8c7c 2711 u64 qmdata;
af19b491
AKS		 2712 int ret;
2713
2714 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
2715 if (ret != 0)
2716 return ret;
2717
897e8c7c
DP		 2718 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
2719 qlcnic_pci_camqm_read_2M(adapter, offset, &qmdata);
2720 memcpy(buf, &qmdata, size);
2721 } else {
2722 data = QLCRD32(adapter, offset);
2723 memcpy(buf, &data, size);
2724 }
af19b491
AKS		 2725 return size;
2726}
2727
2728static ssize_t
2c3c8bea
CW		 2729qlcnic_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2730 struct bin_attribute *attr,
af19b491
AKS		 2731 char *buf, loff_t offset, size_t size)
2732{
2733 struct device *dev = container_of(kobj, struct device, kobj);
2734 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2735 u32 data;
897e8c7c 2736 u64 qmdata;
af19b491
AKS		 2737 int ret;
2738
2739 ret = qlcnic_sysfs_validate_crb(adapter, offset, size);
2740 if (ret != 0)
2741 return ret;
2742
897e8c7c
DP		 2743 if (ADDR_IN_RANGE(offset, QLCNIC_PCI_CAMQM, QLCNIC_PCI_CAMQM_END)) {
2744 memcpy(&qmdata, buf, size);
2745 qlcnic_pci_camqm_write_2M(adapter, offset, qmdata);
2746 } else {
2747 memcpy(&data, buf, size);
2748 QLCWR32(adapter, offset, data);
2749 }
af19b491
AKS		 2750 return size;
2751}
2752
2753static int
2754qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter,
2755 loff_t offset, size_t size)
2756{
2757 if (!(adapter->flags & QLCNIC_DIAG_ENABLED))
2758 return -EIO;
2759
2760 if ((size != 8) || (offset & 0x7))
2761 return -EIO;
2762
2763 return 0;
2764}
2765
2766static ssize_t
2c3c8bea
CW		 2767qlcnic_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2768 struct bin_attribute *attr,
af19b491
AKS		 2769 char *buf, loff_t offset, size_t size)
2770{
2771 struct device *dev = container_of(kobj, struct device, kobj);
2772 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2773 u64 data;
2774 int ret;
2775
2776 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
2777 if (ret != 0)
2778 return ret;
2779
2780 if (qlcnic_pci_mem_read_2M(adapter, offset, &data))
2781 return -EIO;
2782
2783 memcpy(buf, &data, size);
2784
2785 return size;
2786}
2787
2788static ssize_t
2c3c8bea
CW		 2789qlcnic_sysfs_write_mem(struct file *filp, struct kobject *kobj,
2790 struct bin_attribute *attr,
af19b491
AKS		 2791 char *buf, loff_t offset, size_t size)
2792{
2793 struct device *dev = container_of(kobj, struct device, kobj);
2794 struct qlcnic_adapter *adapter = dev_get_drvdata(dev);
2795 u64 data;
2796 int ret;
2797
2798 ret = qlcnic_sysfs_validate_mem(adapter, offset, size);
2799 if (ret != 0)
2800 return ret;
2801
2802 memcpy(&data, buf, size);
2803
2804 if (qlcnic_pci_mem_write_2M(adapter, offset, data))
2805 return -EIO;
2806
2807 return size;
2808}
2809
2810
2811static struct bin_attribute bin_attr_crb = {
2812 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2813 .size = 0,
2814 .read = qlcnic_sysfs_read_crb,
2815 .write = qlcnic_sysfs_write_crb,
2816};
2817
2818static struct bin_attribute bin_attr_mem = {
2819 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2820 .size = 0,
2821 .read = qlcnic_sysfs_read_mem,
2822 .write = qlcnic_sysfs_write_mem,
2823};
2824
2825static void
2826qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter)
2827{
2828 struct device *dev = &adapter->pdev->dev;
2829
2830 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
2831 if (device_create_file(dev, &dev_attr_bridged_mode))
2832 dev_warn(dev,
2833 "failed to create bridged_mode sysfs entry\n");
2834}
2835
2836static void
2837qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter)
2838{
2839 struct device *dev = &adapter->pdev->dev;
2840
2841 if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)
2842 device_remove_file(dev, &dev_attr_bridged_mode);
2843}
2844
2845static void
2846qlcnic_create_diag_entries(struct qlcnic_adapter *adapter)
2847{
2848 struct device *dev = &adapter->pdev->dev;
2849
2850 if (device_create_file(dev, &dev_attr_diag_mode))
2851 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2852 if (device_create_bin_file(dev, &bin_attr_crb))
2853 dev_info(dev, "failed to create crb sysfs entry\n");
2854 if (device_create_bin_file(dev, &bin_attr_mem))
2855 dev_info(dev, "failed to create mem sysfs entry\n");
2856}
2857
2858
2859static void
2860qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter)
2861{
2862 struct device *dev = &adapter->pdev->dev;
2863
2864 device_remove_file(dev, &dev_attr_diag_mode);
2865 device_remove_bin_file(dev, &bin_attr_crb);
2866 device_remove_bin_file(dev, &bin_attr_mem);
2867}
2868
2869#ifdef CONFIG_INET
2870
2871#define is_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops)
2872
af19b491
AKS		 2873static void
2874qlcnic_config_indev_addr(struct net_device *dev, unsigned long event)
2875{
2876 struct in_device *indev;
2877 struct qlcnic_adapter *adapter = netdev_priv(dev);
2878
af19b491
AKS		 2879 indev = in_dev_get(dev);
2880 if (!indev)
2881 return;
2882
2883 for_ifa(indev) {
2884 switch (event) {
2885 case NETDEV_UP:
2886 qlcnic_config_ipaddr(adapter,
2887 ifa->ifa_address, QLCNIC_IP_UP);
2888 break;
2889 case NETDEV_DOWN:
2890 qlcnic_config_ipaddr(adapter,
2891 ifa->ifa_address, QLCNIC_IP_DOWN);
2892 break;
2893 default:
2894 break;
2895 }
2896 } endfor_ifa(indev);
2897
2898 in_dev_put(indev);
af19b491
AKS		 2899}
2900
2901static int qlcnic_netdev_event(struct notifier_block *this,
2902 unsigned long event, void *ptr)
2903{
2904 struct qlcnic_adapter *adapter;
2905 struct net_device *dev = (struct net_device *)ptr;
2906
2907recheck:
2908 if (dev == NULL)
2909 goto done;
2910
2911 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2912 dev = vlan_dev_real_dev(dev);
2913 goto recheck;
2914 }
2915
2916 if (!is_qlcnic_netdev(dev))
2917 goto done;
2918
2919 adapter = netdev_priv(dev);
2920
2921 if (!adapter)
2922 goto done;
2923
8a15ad1f 2924 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
af19b491
AKS		 2925 goto done;
2926
2927 qlcnic_config_indev_addr(dev, event);
2928done:
2929 return NOTIFY_DONE;
2930}
2931
2932static int
2933qlcnic_inetaddr_event(struct notifier_block *this,
2934 unsigned long event, void *ptr)
2935{
2936 struct qlcnic_adapter *adapter;
2937 struct net_device *dev;
2938
2939 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2940
2941 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2942
2943recheck:
2944 if (dev == NULL || !netif_running(dev))
2945 goto done;
2946
2947 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2948 dev = vlan_dev_real_dev(dev);
2949 goto recheck;
2950 }
2951
2952 if (!is_qlcnic_netdev(dev))
2953 goto done;
2954
2955 adapter = netdev_priv(dev);
2956
251a84c9 2957 if (!adapter)
af19b491
AKS		 2958 goto done;
2959
8a15ad1f 2960 if (!test_bit(__QLCNIC_DEV_UP, &adapter->state))
af19b491
AKS		 2961 goto done;
2962
2963 switch (event) {
2964 case NETDEV_UP:
2965 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP);
2966 break;
2967 case NETDEV_DOWN:
2968 qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN);
2969 break;
2970 default:
2971 break;
2972 }
2973
2974done:
2975 return NOTIFY_DONE;
2976}
2977
2978static struct notifier_block qlcnic_netdev_cb = {
2979 .notifier_call = qlcnic_netdev_event,
2980};
2981
2982static struct notifier_block qlcnic_inetaddr_cb = {
2983 .notifier_call = qlcnic_inetaddr_event,
2984};
2985#else
2986static void
2987qlcnic_config_indev_addr(struct net_device *dev, unsigned long event)
2988{ }
2989#endif
2990
2991static struct pci_driver qlcnic_driver = {
2992 .name = qlcnic_driver_name,
2993 .id_table = qlcnic_pci_tbl,
2994 .probe = qlcnic_probe,
2995 .remove = __devexit_p(qlcnic_remove),
2996#ifdef CONFIG_PM
2997 .suspend = qlcnic_suspend,
2998 .resume = qlcnic_resume,
2999#endif
3000 .shutdown = qlcnic_shutdown
3001};
3002
3003static int __init qlcnic_init_module(void)
3004{
3005
3006 printk(KERN_INFO "%s\n", qlcnic_driver_string);
3007
3008#ifdef CONFIG_INET
3009 register_netdevice_notifier(&qlcnic_netdev_cb);
3010 register_inetaddr_notifier(&qlcnic_inetaddr_cb);
3011#endif
3012
3013
3014 return pci_register_driver(&qlcnic_driver);
3015}
3016
3017module_init(qlcnic_init_module);
3018
3019static void __exit qlcnic_exit_module(void)
3020{
3021
3022 pci_unregister_driver(&qlcnic_driver);
3023
3024#ifdef CONFIG_INET
3025 unregister_inetaddr_notifier(&qlcnic_inetaddr_cb);
3026 unregister_netdevice_notifier(&qlcnic_netdev_cb);
3027#endif
3028}
3029
3030module_exit(qlcnic_exit_module);
Clone of davem's net-next-2.6 tree