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mac80211: convert to %pM away from print_mac
[linux-2.6-block.git] / drivers / net / netxen / netxen_nic_main.c
CommitLineData
3d396eb1
AK		 1/*
2 * Copyright (C) 2003 - 2006 NetXen, Inc.
3 * All rights reserved.
80922fbc 4 *
3d396eb1
AK		 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.
80922fbc 9 *
3d396eb1
AK		 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.
80922fbc 14 *
3d396eb1
AK		 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.
80922fbc 19 *
3d396eb1
AK		 20 * The full GNU General Public License is included in this distribution
21 * in the file called LICENSE.
80922fbc 22 *
3d396eb1
AK		 23 * Contact Information:
24 * info@netxen.com
25 * NetXen,
26 * 3965 Freedom Circle, Fourth floor,
27 * Santa Clara, CA 95054
28 *
29 *
30 * Main source file for NetXen NIC Driver on Linux
31 *
32 */
33
cb8011ad 34#include <linux/vmalloc.h>
ed25ffa1 35#include <linux/highmem.h>
3d396eb1
AK		 36#include "netxen_nic_hw.h"
37
38#include "netxen_nic.h"
3d396eb1 39#include "netxen_nic_phan_reg.h"
3d396eb1 40
1494a814 41#include <linux/dma-mapping.h>
c9bdd4b5 42#include <net/ip.h>
1494a814 43
3d396eb1
AK		 44MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver");
45MODULE_LICENSE("GPL");
46MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
47
ceded32f 48char netxen_nic_driver_name[] = "netxen_nic";
3d396eb1 49static char netxen_nic_driver_string[] = "NetXen Network Driver version "
cb8011ad 50 NETXEN_NIC_LINUX_VERSIONID;
3d396eb1 51
2956640d
DP		 52static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
53
54/* Default to restricted 1G auto-neg mode */
55static int wol_port_mode = 5;
56
57static int use_msi = 1;
58
59static int use_msi_x = 1;
60
3d396eb1
AK		 61/* Local functions to NetXen NIC driver */
62static int __devinit netxen_nic_probe(struct pci_dev *pdev,
2956640d 63 const struct pci_device_id *ent);
3d396eb1
AK		 64static void __devexit netxen_nic_remove(struct pci_dev *pdev);
65static int netxen_nic_open(struct net_device *netdev);
66static int netxen_nic_close(struct net_device *netdev);
67static int netxen_nic_xmit_frame(struct sk_buff *, struct net_device *);
68static void netxen_tx_timeout(struct net_device *netdev);
6d5aefb8 69static void netxen_tx_timeout_task(struct work_struct *work);
3d396eb1 70static void netxen_watchdog(unsigned long);
bea3348e 71static int netxen_nic_poll(struct napi_struct *napi, int budget);
3d396eb1
AK		 72#ifdef CONFIG_NET_POLL_CONTROLLER
73static void netxen_nic_poll_controller(struct net_device *netdev);
74#endif
1494a814 75static irqreturn_t netxen_intr(int irq, void *data);
05aaa02d 76static irqreturn_t netxen_msi_intr(int irq, void *data);
3d396eb1
AK		 77
78/* PCI Device ID Table */
70081ac5 79#define ENTRY(device) \
040dec3b 80 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
70081ac5
AV		 81 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
82
3d396eb1 83static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
040dec3b
DP		 84 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
85 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
86 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
87 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
88 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
89 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
90 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
91 ENTRY(PCI_DEVICE_ID_NX3031),
3d396eb1
AK		 92 {0,}
93};
94
95MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
96
b1555130
AB		 97/*
98 * In netxen_nic_down(), we must wait for any pending callback requests into
99 * netxen_watchdog_task() to complete; eg otherwise the watchdog_timer could be
100 * reenabled right after it is deleted in netxen_nic_down().
101 * FLUSH_SCHEDULED_WORK() does this synchronization.
102 *
103 * Normally, schedule_work()/flush_scheduled_work() could have worked, but
104 * netxen_nic_close() is invoked with kernel rtnl lock held. netif_carrier_off()
105 * call in netxen_nic_close() triggers a schedule_work(&linkwatch_work), and a
106 * subsequent call to flush_scheduled_work() in netxen_nic_down() would cause
107 * linkwatch_event() to be executed which also attempts to acquire the rtnl
108 * lock thus causing a deadlock.
109 */
110
111static struct workqueue_struct *netxen_workq;
112#define SCHEDULE_WORK(tp) queue_work(netxen_workq, tp)
113#define FLUSH_SCHEDULED_WORK() flush_workqueue(netxen_workq)
114
ed25ffa1
AK		 115static void netxen_watchdog(unsigned long);
116
7830b22c
DP		 117static uint32_t crb_cmd_producer[4] = {
118 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
119 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
120};
121
c9fc891f 122void
3ce06a32
DP		 123netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
124 uint32_t crb_producer)
3176ff3e 125{
3ce06a32
DP		 126 adapter->pci_write_normalize(adapter,
127 adapter->crb_addr_cmd_producer, crb_producer);
3176ff3e
MT		 128}
129
7830b22c
DP		 130static uint32_t crb_cmd_consumer[4] = {
131 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
132 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
133};
134
3ce06a32
DP		 135static inline void
136netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
137 u32 crb_consumer)
3176ff3e 138{
3ce06a32
DP		 139 adapter->pci_write_normalize(adapter,
140 adapter->crb_addr_cmd_consumer, crb_consumer);
3176ff3e
MT		 141}
142
2956640d 143static uint32_t msi_tgt_status[8] = {
443be796 144 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
2956640d
DP		 145 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
146 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
147 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
443be796
DP		 148};
149
2956640d
DP		 150static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
151
092bc571 152static inline void netxen_nic_disable_int(struct netxen_adapter *adapter)
4638aef1 153{
092bc571 154 adapter->pci_write_normalize(adapter, adapter->crb_intr_mask, 0);
4638aef1
SH		 155}
156
092bc571 157static inline void netxen_nic_enable_int(struct netxen_adapter *adapter)
4638aef1 158{
48bfd1e0 159 adapter->pci_write_normalize(adapter, adapter->crb_intr_mask, 0x1);
4638aef1 160
092bc571
DP		 161 if (!NETXEN_IS_MSI_FAMILY(adapter))
162 adapter->pci_write_immediate(adapter,
163 adapter->legacy_intr.tgt_mask_reg, 0xfbff);
4638aef1
SH		 164}
165
2956640d
DP		 166static int nx_set_dma_mask(struct netxen_adapter *adapter, uint8_t revision_id)
167{
168 struct pci_dev *pdev = adapter->pdev;
169 int err;
170 uint64_t mask;
171
172#ifdef CONFIG_IA64
173 adapter->dma_mask = DMA_32BIT_MASK;
174#else
175 if (revision_id >= NX_P3_B0) {
176 /* should go to DMA_64BIT_MASK */
177 adapter->dma_mask = DMA_39BIT_MASK;
178 mask = DMA_39BIT_MASK;
179 } else if (revision_id == NX_P3_A2) {
180 adapter->dma_mask = DMA_39BIT_MASK;
181 mask = DMA_39BIT_MASK;
182 } else if (revision_id == NX_P2_C1) {
183 adapter->dma_mask = DMA_35BIT_MASK;
184 mask = DMA_35BIT_MASK;
185 } else {
186 adapter->dma_mask = DMA_32BIT_MASK;
187 mask = DMA_32BIT_MASK;
188 goto set_32_bit_mask;
189 }
190
191 /*
192 * Consistent DMA mask is set to 32 bit because it cannot be set to
193 * 35 bits. For P3 also leave it at 32 bits for now. Only the rings
194 * come off this pool.
195 */
196 if (pci_set_dma_mask(pdev, mask) == 0 &&
197 pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK) == 0) {
198 adapter->pci_using_dac = 1;
199 return 0;
200 }
201#endif /* CONFIG_IA64 */
202
203set_32_bit_mask:
204 err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
205 if (!err)
206 err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
207 if (err) {
208 DPRINTK(ERR, "No usable DMA configuration, aborting:%d\n", err);
209 return err;
210 }
211
212 adapter->pci_using_dac = 0;
213 return 0;
214}
215
216static void netxen_check_options(struct netxen_adapter *adapter)
217{
218 switch (adapter->ahw.boardcfg.board_type) {
219 case NETXEN_BRDTYPE_P3_HMEZ:
220 case NETXEN_BRDTYPE_P3_XG_LOM:
221 case NETXEN_BRDTYPE_P3_10G_CX4:
222 case NETXEN_BRDTYPE_P3_10G_CX4_LP:
223 case NETXEN_BRDTYPE_P3_IMEZ:
224 case NETXEN_BRDTYPE_P3_10G_SFP_PLUS:
a70f9393
DP		 225 case NETXEN_BRDTYPE_P3_10G_SFP_QT:
226 case NETXEN_BRDTYPE_P3_10G_SFP_CT:
2956640d
DP		 227 case NETXEN_BRDTYPE_P3_10G_XFP:
228 case NETXEN_BRDTYPE_P3_10000_BASE_T:
229 adapter->msix_supported = !!use_msi_x;
230 adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G;
231 break;
232
233 case NETXEN_BRDTYPE_P2_SB31_10G:
234 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
235 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
236 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
237 adapter->msix_supported = 0;
238 adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G;
239 break;
240
241 case NETXEN_BRDTYPE_P3_REF_QG:
242 case NETXEN_BRDTYPE_P3_4_GB:
243 case NETXEN_BRDTYPE_P3_4_GB_MM:
ec68db69 244 adapter->msix_supported = !!use_msi_x;
a70f9393
DP		 245 adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G;
246 break;
247
2956640d
DP		 248 case NETXEN_BRDTYPE_P2_SB35_4G:
249 case NETXEN_BRDTYPE_P2_SB31_2G:
250 adapter->msix_supported = 0;
251 adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G;
252 break;
253
254 default:
255 adapter->msix_supported = 0;
256 adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G;
257
258 printk(KERN_WARNING "Unknown board type(0x%x)\n",
259 adapter->ahw.boardcfg.board_type);
260 break;
261 }
262
263 adapter->max_tx_desc_count = MAX_CMD_DESCRIPTORS_HOST;
264 adapter->max_jumbo_rx_desc_count = MAX_JUMBO_RCV_DESCRIPTORS;
265 adapter->max_lro_rx_desc_count = MAX_LRO_RCV_DESCRIPTORS;
266
267 adapter->max_possible_rss_rings = 1;
268 return;
269}
270
271static int
272netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
273{
274 int ret = 0;
275
276 if (first_boot == 0x55555555) {
277 /* This is the first boot after power up */
278
279 /* PCI bus master workaround */
280 adapter->hw_read_wx(adapter,
281 NETXEN_PCIE_REG(0x4), &first_boot, 4);
282 if (!(first_boot & 0x4)) {
283 first_boot |= 0x4;
284 adapter->hw_write_wx(adapter,
285 NETXEN_PCIE_REG(0x4), &first_boot, 4);
286 adapter->hw_read_wx(adapter,
287 NETXEN_PCIE_REG(0x4), &first_boot, 4);
288 }
289
290 /* This is the first boot after power up */
291 adapter->hw_read_wx(adapter,
292 NETXEN_ROMUSB_GLB_SW_RESET, &first_boot, 4);
293 if (first_boot != 0x80000f) {
294 /* clear the register for future unloads/loads */
295 adapter->pci_write_normalize(adapter,
296 NETXEN_CAM_RAM(0x1fc), 0);
297 ret = -1;
298 }
299
300 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
301 /* Start P2 boot loader */
302 adapter->pci_write_normalize(adapter,
303 NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
304 adapter->pci_write_normalize(adapter,
305 NETXEN_ROMUSB_GLB_PEGTUNE_DONE, 1);
306 }
307 }
308 return ret;
309}
310
311static void netxen_set_port_mode(struct netxen_adapter *adapter)
312{
313 u32 val, data;
314
315 val = adapter->ahw.boardcfg.board_type;
316 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
317 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
318 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
319 data = NETXEN_PORT_MODE_802_3_AP;
320 adapter->hw_write_wx(adapter,
321 NETXEN_PORT_MODE_ADDR, &data, 4);
322 } else if (port_mode == NETXEN_PORT_MODE_XG) {
323 data = NETXEN_PORT_MODE_XG;
324 adapter->hw_write_wx(adapter,
325 NETXEN_PORT_MODE_ADDR, &data, 4);
326 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
327 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
328 adapter->hw_write_wx(adapter,
329 NETXEN_PORT_MODE_ADDR, &data, 4);
330 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
331 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
332 adapter->hw_write_wx(adapter,
333 NETXEN_PORT_MODE_ADDR, &data, 4);
334 } else {
335 data = NETXEN_PORT_MODE_AUTO_NEG;
336 adapter->hw_write_wx(adapter,
337 NETXEN_PORT_MODE_ADDR, &data, 4);
338 }
339
340 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
341 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
342 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
343 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
344 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
345 }
346 adapter->hw_write_wx(adapter, NETXEN_WOL_PORT_MODE,
347 &wol_port_mode, 4);
348 }
349}
350
351#define PCI_CAP_ID_GEN 0x10
352
353static void netxen_pcie_strap_init(struct netxen_adapter *adapter)
354{
355 u32 pdevfuncsave;
356 u32 c8c9value = 0;
357 u32 chicken = 0;
358 u32 control = 0;
359 int i, pos;
360 struct pci_dev *pdev;
361
2956640d
DP		 362 pdev = adapter->pdev;
363
364 adapter->hw_read_wx(adapter,
365 NETXEN_PCIE_REG(PCIE_CHICKEN3), &chicken, 4);
366 /* clear chicken3.25:24 */
367 chicken &= 0xFCFFFFFF;
368 /*
369 * if gen1 and B0, set F1020 - if gen 2, do nothing
370 * if gen2 set to F1000
371 */
372 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN);
373 if (pos == 0xC0) {
374 pci_read_config_dword(pdev, pos + 0x10, &control);
375 if ((control & 0x000F0000) != 0x00020000) {
376 /* set chicken3.24 if gen1 */
377 chicken |= 0x01000000;
378 }
379 printk(KERN_INFO "%s Gen2 strapping detected\n",
380 netxen_nic_driver_name);
381 c8c9value = 0xF1000;
382 } else {
383 /* set chicken3.24 if gen1 */
384 chicken |= 0x01000000;
385 printk(KERN_INFO "%s Gen1 strapping detected\n",
386 netxen_nic_driver_name);
387 if (adapter->ahw.revision_id == NX_P3_B0)
388 c8c9value = 0xF1020;
389 else
390 c8c9value = 0;
391
392 }
393 adapter->hw_write_wx(adapter,
394 NETXEN_PCIE_REG(PCIE_CHICKEN3), &chicken, 4);
395
396 if (!c8c9value)
397 return;
398
399 pdevfuncsave = pdev->devfn;
400 if (pdevfuncsave & 0x07)
401 return;
402
403 for (i = 0; i < 8; i++) {
404 pci_read_config_dword(pdev, pos + 8, &control);
405 pci_read_config_dword(pdev, pos + 8, &control);
406 pci_write_config_dword(pdev, pos + 8, c8c9value);
407 pdev->devfn++;
408 }
409 pdev->devfn = pdevfuncsave;
410}
411
412static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
413{
414 u32 control;
415 int pos;
416
417 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
418 if (pos) {
419 pci_read_config_dword(pdev, pos, &control);
420 if (enable)
421 control |= PCI_MSIX_FLAGS_ENABLE;
422 else
423 control = 0;
424 pci_write_config_dword(pdev, pos, control);
425 }
426}
427
428static void netxen_init_msix_entries(struct netxen_adapter *adapter)
429{
430 int i;
431
432 for (i = 0; i < MSIX_ENTRIES_PER_ADAPTER; i++)
433 adapter->msix_entries[i].entry = i;
434}
435
9dc28efe
DP		 436static int
437netxen_read_mac_addr(struct netxen_adapter *adapter)
438{
439 int i;
440 unsigned char *p;
441 __le64 mac_addr;
442 DECLARE_MAC_BUF(mac);
443 struct net_device *netdev = adapter->netdev;
444 struct pci_dev *pdev = adapter->pdev;
445
446 if (netxen_is_flash_supported(adapter) != 0)
447 return -EIO;
448
449 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
450 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
451 return -EIO;
452 } else {
453 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
454 return -EIO;
455 }
456
457 p = (unsigned char *)&mac_addr;
458 for (i = 0; i < 6; i++)
459 netdev->dev_addr[i] = *(p + 5 - i);
460
461 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
462
463 /* set station address */
464
465 if (!is_valid_ether_addr(netdev->perm_addr)) {
466 dev_warn(&pdev->dev, "Bad MAC address %s.\n",
467 print_mac(mac, netdev->dev_addr));
468 } else
469 adapter->macaddr_set(adapter, netdev->dev_addr);
470
471 return 0;
472}
473
3d396eb1
AK		 474/*
475 * netxen_nic_probe()
476 *
477 * The Linux system will invoke this after identifying the vendor ID and
478 * device Id in the pci_tbl supported by this module.
479 *
480 * A quad port card has one operational PCI config space, (function 0),
481 * which is used to access all four ports.
482 *
483 * This routine will initialize the adapter, and setup the global parameters
484 * along with the port's specific structure.
485 */
486static int __devinit
487netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
488{
489 struct net_device *netdev = NULL;
490 struct netxen_adapter *adapter = NULL;
ed25ffa1
AK		 491 void __iomem *mem_ptr0 = NULL;
492 void __iomem *mem_ptr1 = NULL;
493 void __iomem *mem_ptr2 = NULL;
6c80b18d
MT		 494 unsigned long first_page_group_end;
495 unsigned long first_page_group_start;
496
cb8011ad 497
a608ab9c 498 u8 __iomem *db_ptr = NULL;
2956640d
DP		 499 unsigned long mem_base, mem_len, db_base, db_len, pci_len0 = 0;
500 int i = 0, err;
501 int first_driver, first_boot;
6c80b18d 502 u32 val;
3176ff3e 503 int pci_func_id = PCI_FUNC(pdev->devfn);
2956640d
DP		 504 struct netxen_legacy_intr_set *legacy_intrp;
505 uint8_t revision_id;
3d396eb1 506
dcd56fdb 507 if (pci_func_id == 0)
2956640d 508 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
6c80b18d 509
3176ff3e 510 if (pdev->class != 0x020000) {
dcd56fdb 511 printk(KERN_DEBUG "NetXen function %d, class %x will not "
3176ff3e 512 "be enabled.\n",pci_func_id, pdev->class);
ed25ffa1
AK		 513 return -ENODEV;
514 }
2956640d 515
11d89d63
DP		 516 if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) {
517 printk(KERN_WARNING "NetXen chip revisions between 0x%x-0x%x"
518 "will not be enabled.\n",
519 NX_P3_A0, NX_P3_B1);
520 return -ENODEV;
521 }
522
3d396eb1
AK		 523 if ((err = pci_enable_device(pdev)))
524 return err;
2956640d 525
3d396eb1
AK		 526 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
527 err = -ENODEV;
528 goto err_out_disable_pdev;
529 }
530
531 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
532 goto err_out_disable_pdev;
533
534 pci_set_master(pdev);
3176ff3e
MT		 535
536 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
537 if(!netdev) {
538 printk(KERN_ERR"%s: Failed to allocate memory for the "
539 "device block.Check system memory resource"
540 " usage.\n", netxen_nic_driver_name);
541 goto err_out_free_res;
542 }
543
3176ff3e
MT		 544 SET_NETDEV_DEV(netdev, &pdev->dev);
545
546 adapter = netdev->priv;
2956640d
DP		 547 adapter->netdev = netdev;
548 adapter->pdev = pdev;
13ba9c77 549 adapter->ahw.pci_func = pci_func_id;
2956640d
DP		 550
551 revision_id = pdev->revision;
552 adapter->ahw.revision_id = revision_id;
553
554 err = nx_set_dma_mask(adapter, revision_id);
555 if (err)
556 goto err_out_free_netdev;
557
3ce06a32
DP		 558 rwlock_init(&adapter->adapter_lock);
559 adapter->ahw.qdr_sn_window = -1;
560 adapter->ahw.ddr_mn_window = -1;
13ba9c77 561
3d396eb1
AK		 562 /* remap phys address */
563 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
564 mem_len = pci_resource_len(pdev, 0);
3ce06a32
DP		 565 pci_len0 = 0;
566
567 adapter->hw_write_wx = netxen_nic_hw_write_wx_128M;
568 adapter->hw_read_wx = netxen_nic_hw_read_wx_128M;
569 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M;
570 adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M;
571 adapter->pci_read_normalize = netxen_nic_pci_read_normalize_128M;
572 adapter->pci_write_normalize = netxen_nic_pci_write_normalize_128M;
573 adapter->pci_set_window = netxen_nic_pci_set_window_128M;
574 adapter->pci_mem_read = netxen_nic_pci_mem_read_128M;
575 adapter->pci_mem_write = netxen_nic_pci_mem_write_128M;
3d396eb1
AK		 576
577 /* 128 Meg of memory */
6c80b18d
MT		 578 if (mem_len == NETXEN_PCI_128MB_SIZE) {
579 mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
580 mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
581 SECOND_PAGE_GROUP_SIZE);
582 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
583 THIRD_PAGE_GROUP_SIZE);
584 first_page_group_start = FIRST_PAGE_GROUP_START;
585 first_page_group_end = FIRST_PAGE_GROUP_END;
586 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
587 mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
588 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
589 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
590 first_page_group_start = 0;
591 first_page_group_end = 0;
3ce06a32
DP		 592 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
593 adapter->hw_write_wx = netxen_nic_hw_write_wx_2M;
594 adapter->hw_read_wx = netxen_nic_hw_read_wx_2M;
595 adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M;
596 adapter->pci_write_immediate =
597 netxen_nic_pci_write_immediate_2M;
598 adapter->pci_read_normalize = netxen_nic_pci_read_normalize_2M;
599 adapter->pci_write_normalize =
600 netxen_nic_pci_write_normalize_2M;
601 adapter->pci_set_window = netxen_nic_pci_set_window_2M;
602 adapter->pci_mem_read = netxen_nic_pci_mem_read_2M;
603 adapter->pci_mem_write = netxen_nic_pci_mem_write_2M;
604
605 mem_ptr0 = ioremap(mem_base, mem_len);
606 pci_len0 = mem_len;
607 first_page_group_start = 0;
608 first_page_group_end = 0;
609
610 adapter->ahw.ddr_mn_window = 0;
611 adapter->ahw.qdr_sn_window = 0;
612
613 adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW +
614 (pci_func_id * 0x20);
615 adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW;
616 if (pci_func_id < 4)
617 adapter->ahw.ms_win_crb += (pci_func_id * 0x20);
618 else
619 adapter->ahw.ms_win_crb +=
620 0xA0 + ((pci_func_id - 4) * 0x10);
6c80b18d 621 } else {
4790654c 622 err = -EIO;
6c80b18d
MT		 623 goto err_out_free_netdev;
624 }
cb8011ad 625
3ce06a32 626 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
cb8011ad 627
ed25ffa1
AK		 628 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
629 db_len = pci_resource_len(pdev, 4);
630
631 if (db_len == 0) {
632 printk(KERN_ERR "%s: doorbell is disabled\n",
2956640d 633 netxen_nic_driver_name);
ed25ffa1
AK		 634 err = -EIO;
635 goto err_out_iounmap;
636 }
637 DPRINTK(INFO, "doorbell ioremap from %lx a size of %lx\n", db_base,
638 db_len);
639
640 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
a608ab9c 641 if (!db_ptr) {
ed25ffa1 642 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
2956640d 643 netxen_nic_driver_name);
ed25ffa1
AK		 644 err = -EIO;
645 goto err_out_iounmap;
3d396eb1 646 }
ed25ffa1 647 DPRINTK(INFO, "doorbell ioremaped at %p\n", db_ptr);
3d396eb1 648
6c80b18d 649 adapter->ahw.pci_base0 = mem_ptr0;
3ce06a32 650 adapter->ahw.pci_len0 = pci_len0;
6c80b18d
MT		 651 adapter->ahw.first_page_group_start = first_page_group_start;
652 adapter->ahw.first_page_group_end = first_page_group_end;
653 adapter->ahw.pci_base1 = mem_ptr1;
654 adapter->ahw.pci_base2 = mem_ptr2;
655 adapter->ahw.db_base = db_ptr;
656 adapter->ahw.db_len = db_len;
3d396eb1 657
bea3348e 658 netif_napi_add(netdev, &adapter->napi,
2956640d
DP		 659 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
660
661 if (revision_id >= NX_P3_B0)
662 legacy_intrp = &legacy_intr[pci_func_id];
663 else
664 legacy_intrp = &legacy_intr[0];
665
666 adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit;
667 adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg;
668 adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg;
669 adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg;
bea3348e 670
2d1a3bbd 671 /* this will be read from FW later */
672 adapter->intr_scheme = -1;
443be796 673 adapter->msi_mode = -1;
2d1a3bbd 674
675 /* This will be reset for mezz cards */
3176ff3e 676 adapter->portnum = pci_func_id;
2d1a3bbd 677 adapter->status &= ~NETXEN_NETDEV_STATUS;
200eef20 678 adapter->rx_csum = 1;
623621b0 679 adapter->mc_enabled = 0;
83821a07 680 if (NX_IS_REVISION_P3(revision_id))
2956640d 681 adapter->max_mc_count = 38;
83821a07 682 else
2956640d 683 adapter->max_mc_count = 16;
3176ff3e
MT		 684
685 netdev->open = netxen_nic_open;
686 netdev->stop = netxen_nic_close;
687 netdev->hard_start_xmit = netxen_nic_xmit_frame;
4790654c 688 netdev->get_stats = netxen_nic_get_stats;
c9fc891f
DP		 689 if (NX_IS_REVISION_P3(revision_id))
690 netdev->set_multicast_list = netxen_p3_nic_set_multi;
691 else
692 netdev->set_multicast_list = netxen_p2_nic_set_multi;
3176ff3e
MT		 693 netdev->set_mac_address = netxen_nic_set_mac;
694 netdev->change_mtu = netxen_nic_change_mtu;
695 netdev->tx_timeout = netxen_tx_timeout;
05aaa02d 696 netdev->watchdog_timeo = 2*HZ;
3176ff3e
MT		 697
698 netxen_nic_change_mtu(netdev, netdev->mtu);
699
700 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
3176ff3e
MT		 701#ifdef CONFIG_NET_POLL_CONTROLLER
702 netdev->poll_controller = netxen_nic_poll_controller;
703#endif
704 /* ScatterGather support */
705 netdev->features = NETIF_F_SG;
706 netdev->features |= NETIF_F_IP_CSUM;
707 netdev->features |= NETIF_F_TSO;
cd1f8160
DP		 708 if (NX_IS_REVISION_P3(revision_id)) {
709 netdev->features |= NETIF_F_IPV6_CSUM;
2956640d 710 netdev->features |= NETIF_F_TSO6;
cd1f8160 711 }
3176ff3e 712
2956640d 713 if (adapter->pci_using_dac)
3176ff3e
MT		 714 netdev->features |= NETIF_F_HIGHDMA;
715
6c80b18d
MT		 716 /*
717 * Set the CRB window to invalid. If any register in window 0 is
718 * accessed it should set the window to 0 and then reset it to 1.
719 */
720 adapter->curr_window = 255;
721
dcd56fdb
DP		 722 if (netxen_nic_get_board_info(adapter) != 0) {
723 printk("%s: Error getting board config info.\n",
2956640d 724 netxen_nic_driver_name);
dcd56fdb
DP		 725 err = -EIO;
726 goto err_out_iounmap;
727 }
6c80b18d 728
6c80b18d
MT		 729 netxen_initialize_adapter_ops(adapter);
730
13ba9c77 731 /* Mezz cards have PCI function 0,2,3 enabled */
dc515f2e
DP		 732 switch (adapter->ahw.boardcfg.board_type) {
733 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
734 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
735 if (pci_func_id >= 2)
13ba9c77 736 adapter->portnum = pci_func_id - 2;
dc515f2e
DP		 737 break;
738 default:
739 break;
740 }
13ba9c77 741
2956640d
DP		 742 /*
743 * This call will setup various max rx/tx counts.
744 * It must be done before any buffer/ring allocations.
745 */
746 netxen_check_options(adapter);
3d396eb1 747
2956640d
DP		 748 first_driver = 0;
749 if (NX_IS_REVISION_P3(revision_id)) {
750 if (adapter->ahw.pci_func == 0)
751 first_driver = 1;
752 } else {
753 if (adapter->portnum == 0)
754 first_driver = 1;
755 }
3d396eb1 756
2956640d
DP		 757 if (first_driver) {
758 first_boot = adapter->pci_read_normalize(adapter,
759 NETXEN_CAM_RAM(0x1fc));
3176ff3e 760
2956640d
DP		 761 err = netxen_check_hw_init(adapter, first_boot);
762 if (err) {
763 printk(KERN_ERR "%s: error in init HW init sequence\n",
764 netxen_nic_driver_name);
765 goto err_out_iounmap;
3176ff3e 766 }
3176ff3e 767
2956640d
DP		 768 if (NX_IS_REVISION_P3(revision_id))
769 netxen_set_port_mode(adapter);
770
771 if (first_boot != 0x55555555) {
3ce06a32
DP		 772 adapter->pci_write_normalize(adapter,
773 CRB_CMDPEG_STATE, 0);
439b454e
DP		 774 netxen_pinit_from_rom(adapter, 0);
775 msleep(1);
776 netxen_load_firmware(adapter);
2956640d
DP		 777 }
778
779 if (NX_IS_REVISION_P3(revision_id))
780 netxen_pcie_strap_init(adapter);
781
782 if (NX_IS_REVISION_P2(revision_id)) {
623621b0
DP		 783
784 /* Initialize multicast addr pool owners */
785 val = 0x7654;
786 if (adapter->ahw.board_type == NETXEN_NIC_XGBE)
787 val |= 0x0f000000;
788 netxen_crb_writelit_adapter(adapter,
789 NETXEN_MAC_ADDR_CNTL_REG, val);
790
6c80b18d 791 }
96acb6eb 792
2956640d
DP		 793 if ((first_boot == 0x55555555) &&
794 (NX_IS_REVISION_P2(revision_id))) {
795 /* Unlock the HW, prompting the boot sequence */
796 adapter->pci_write_normalize(adapter,
797 NETXEN_ROMUSB_GLB_PEGTUNE_DONE, 1);
798 }
799
800 err = netxen_initialize_adapter_offload(adapter);
801 if (err)
802 goto err_out_iounmap;
6c80b18d
MT		 803
804 /*
805 * Tell the hardware our version number.
806 */
4790654c 807 i = (_NETXEN_NIC_LINUX_MAJOR << 16)
6c80b18d
MT		 808 | ((_NETXEN_NIC_LINUX_MINOR << 8))
809 | (_NETXEN_NIC_LINUX_SUBVERSION);
3ce06a32 810 adapter->pci_write_normalize(adapter, CRB_DRIVER_VERSION, i);
3d396eb1 811
3176ff3e
MT		 812 /* Handshake with the card before we register the devices. */
813 netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
2956640d 814
2956640d
DP		 815 } /* first_driver */
816
817 netxen_nic_flash_print(adapter);
3d396eb1 818
d9e651bc
DP		 819 if (NX_IS_REVISION_P3(revision_id)) {
820 adapter->hw_read_wx(adapter,
821 NETXEN_MIU_MN_CONTROL, &val, 4);
822 adapter->ahw.cut_through = (val & 0x4) ? 1 : 0;
823 dev_info(&pdev->dev, "firmware running in %s mode\n",
824 adapter->ahw.cut_through ? "cut through" : "legacy");
825 }
826
3d396eb1 827 /*
6c80b18d 828 * See if the firmware gave us a virtual-physical port mapping.
3d396eb1 829 */
dcd56fdb 830 adapter->physical_port = adapter->portnum;
3ce06a32 831 i = adapter->pci_read_normalize(adapter, CRB_V2P(adapter->portnum));
6c80b18d 832 if (i != 0x55555555)
3276fbad 833 adapter->physical_port = i;
6c80b18d 834
2956640d
DP		 835 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
836
837 netxen_set_msix_bit(pdev, 0);
838
839 if (NX_IS_REVISION_P3(revision_id)) {
840 if ((mem_len != NETXEN_PCI_128MB_SIZE) &&
841 mem_len != NETXEN_PCI_2MB_SIZE)
842 adapter->msix_supported = 0;
843 }
844
845 if (adapter->msix_supported) {
846
847 netxen_init_msix_entries(adapter);
848
849 if (pci_enable_msix(pdev, adapter->msix_entries,
850 MSIX_ENTRIES_PER_ADAPTER))
851 goto request_msi;
852
853 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
854 netxen_set_msix_bit(pdev, 1);
855 dev_info(&pdev->dev, "using msi-x interrupts\n");
856
857 } else {
858request_msi:
859 if (use_msi && !pci_enable_msi(pdev)) {
860 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
861 dev_info(&pdev->dev, "using msi interrupts\n");
862 } else
863 dev_info(&pdev->dev, "using legacy interrupts\n");
864 }
865
866 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
867 netdev->irq = adapter->msix_entries[0].vector;
868 else
869 netdev->irq = pdev->irq;
870
871 err = netxen_receive_peg_ready(adapter);
872 if (err)
873 goto err_out_disable_msi;
874
875 init_timer(&adapter->watchdog_timer);
2956640d
DP		 876 adapter->watchdog_timer.function = &netxen_watchdog;
877 adapter->watchdog_timer.data = (unsigned long)adapter;
878 INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task);
879 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
880
9dc28efe
DP		 881 err = netxen_read_mac_addr(adapter);
882 if (err)
883 dev_warn(&pdev->dev, "failed to read mac addr\n");
2956640d 884
3176ff3e
MT		 885 netif_carrier_off(netdev);
886 netif_stop_queue(netdev);
887
6c80b18d
MT		 888 if ((err = register_netdev(netdev))) {
889 printk(KERN_ERR "%s: register_netdev failed port #%d"
890 " aborting\n", netxen_nic_driver_name,
891 adapter->portnum);
892 err = -EIO;
2956640d 893 goto err_out_disable_msi;
6c80b18d
MT		 894 }
895
896 pci_set_drvdata(pdev, adapter);
3d396eb1 897
2956640d
DP		 898 switch (adapter->ahw.board_type) {
899 case NETXEN_NIC_GBE:
900 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
901 adapter->netdev->name);
902 break;
903 case NETXEN_NIC_XGBE:
904 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
905 adapter->netdev->name);
906 break;
3d396eb1 907 }
3d396eb1 908
2956640d
DP		 909 return 0;
910
911err_out_disable_msi:
912 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
913 pci_disable_msix(pdev);
6c80b18d
MT		 914 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
915 pci_disable_msi(pdev);
916
2956640d
DP		 917 if (first_driver)
918 netxen_free_adapter_offload(adapter);
3d396eb1 919
2956640d 920err_out_iounmap:
ed25ffa1
AK		 921 if (db_ptr)
922 iounmap(db_ptr);
923
ed25ffa1
AK		 924 if (mem_ptr0)
925 iounmap(mem_ptr0);
926 if (mem_ptr1)
927 iounmap(mem_ptr1);
928 if (mem_ptr2)
929 iounmap(mem_ptr2);
cb8011ad 930
6c80b18d
MT		 931err_out_free_netdev:
932 free_netdev(netdev);
933
934err_out_free_res:
3d396eb1 935 pci_release_regions(pdev);
6c80b18d
MT		 936
937err_out_disable_pdev:
2956640d 938 pci_set_drvdata(pdev, NULL);
3d396eb1
AK		 939 pci_disable_device(pdev);
940 return err;
941}
942
943static void __devexit netxen_nic_remove(struct pci_dev *pdev)
944{
945 struct netxen_adapter *adapter;
3176ff3e 946 struct net_device *netdev;
3d396eb1 947
6c80b18d 948 adapter = pci_get_drvdata(pdev);
3d396eb1
AK		 949 if (adapter == NULL)
950 return;
951
6c80b18d
MT		 952 netdev = adapter->netdev;
953
96acb6eb
DP		 954 unregister_netdev(netdev);
955
96acb6eb 956 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
3d396eb1 957 netxen_free_hw_resources(adapter);
9e410778 958 netxen_release_rx_buffers(adapter);
2956640d 959 netxen_free_sw_resources(adapter);
96acb6eb 960 }
3d396eb1 961
439b454e
DP		 962 if (adapter->portnum == 0)
963 netxen_free_adapter_offload(adapter);
96acb6eb 964
3052246c 965 if (adapter->irq)
966 free_irq(adapter->irq, adapter);
967
2956640d
DP		 968 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
969 pci_disable_msix(pdev);
3052246c 970 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
971 pci_disable_msi(pdev);
972
6c80b18d
MT		 973 iounmap(adapter->ahw.db_base);
974 iounmap(adapter->ahw.pci_base0);
975 iounmap(adapter->ahw.pci_base1);
976 iounmap(adapter->ahw.pci_base2);
595e3fb8
MT		 977
978 pci_release_regions(pdev);
3052246c 979 pci_disable_device(pdev);
595e3fb8
MT		 980 pci_set_drvdata(pdev, NULL);
981
6c80b18d 982 free_netdev(netdev);
3d396eb1
AK		 983}
984
985/*
986 * Called when a network interface is made active
987 * @returns 0 on success, negative value on failure
988 */
989static int netxen_nic_open(struct net_device *netdev)
990{
3176ff3e 991 struct netxen_adapter *adapter = (struct netxen_adapter *)netdev->priv;
3d396eb1
AK		 992 int err = 0;
993 int ctx, ring;
05aaa02d
DP		 994 irq_handler_t handler;
995 unsigned long flags = IRQF_SAMPLE_RANDOM;
3d396eb1 996
dcd56fdb
DP		 997 if (adapter->driver_mismatch)
998 return -EIO;
999
3d396eb1
AK		 1000 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) {
1001 err = netxen_init_firmware(adapter);
1002 if (err != 0) {
1003 printk(KERN_ERR "Failed to init firmware\n");
1004 return -EIO;
1005 }
3d396eb1 1006
83821a07
DP		 1007 if (adapter->fw_major < 4)
1008 adapter->max_rds_rings = 3;
1009 else
1010 adapter->max_rds_rings = 2;
1011
2956640d 1012 err = netxen_alloc_sw_resources(adapter);
3d396eb1 1013 if (err) {
2956640d
DP		 1014 printk(KERN_ERR "%s: Error in setting sw resources\n",
1015 netdev->name);
3d396eb1
AK		 1016 return err;
1017 }
2956640d
DP		 1018
1019 netxen_nic_clear_stats(adapter);
1020
1021 err = netxen_alloc_hw_resources(adapter);
1022 if (err) {
1023 printk(KERN_ERR "%s: Error in setting hw resources\n",
1024 netdev->name);
1025 goto err_out_free_sw;
1026 }
1027
092bc571
DP		 1028 if ((adapter->msi_mode != MSI_MODE_MULTIFUNC) ||
1029 (adapter->intr_scheme != INTR_SCHEME_PERPORT)) {
1030 printk(KERN_ERR "%s: Firmware interrupt scheme is "
1031 "incompatible with driver\n",
1032 netdev->name);
1033 adapter->driver_mismatch = 1;
1034 goto err_out_free_hw;
1035 }
1036
2956640d
DP		 1037 if (adapter->fw_major < 4) {
1038 adapter->crb_addr_cmd_producer =
1039 crb_cmd_producer[adapter->portnum];
1040 adapter->crb_addr_cmd_consumer =
1041 crb_cmd_consumer[adapter->portnum];
2956640d 1042
83821a07
DP		 1043 netxen_nic_update_cmd_producer(adapter, 0);
1044 netxen_nic_update_cmd_consumer(adapter, 0);
1045 }
2956640d 1046
3d396eb1 1047 for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) {
48bfd1e0 1048 for (ring = 0; ring < adapter->max_rds_rings; ring++)
3d396eb1 1049 netxen_post_rx_buffers(adapter, ctx, ring);
3d396eb1 1050 }
2956640d 1051 if (NETXEN_IS_MSI_FAMILY(adapter))
05aaa02d
DP		 1052 handler = netxen_msi_intr;
1053 else {
1054 flags |= IRQF_SHARED;
1055 handler = netxen_intr;
1056 }
2956640d 1057 adapter->irq = netdev->irq;
05aaa02d
DP		 1058 err = request_irq(adapter->irq, handler,
1059 flags, netdev->name, adapter);
3d396eb1
AK		 1060 if (err) {
1061 printk(KERN_ERR "request_irq failed with: %d\n", err);
9e410778 1062 goto err_out_free_rxbuf;
3d396eb1 1063 }
ed25ffa1
AK		 1064
1065 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1066 }
2956640d 1067
3d396eb1
AK		 1068 /* Done here again so that even if phantom sw overwrote it,
1069 * we set it */
c9fc891f 1070 err = adapter->init_port(adapter, adapter->physical_port);
2956640d 1071 if (err) {
595e3fb8
MT		 1072 printk(KERN_ERR "%s: Failed to initialize port %d\n",
1073 netxen_nic_driver_name, adapter->portnum);
2956640d 1074 goto err_out_free_irq;
595e3fb8 1075 }
2956640d 1076 adapter->macaddr_set(adapter, netdev->dev_addr);
595e3fb8 1077
3176ff3e 1078 netxen_nic_set_link_parameters(adapter);
3d396eb1 1079
c9fc891f 1080 netdev->set_multicast_list(netdev);
9ad27643 1081 if (adapter->set_mtu)
c9fc891f 1082 adapter->set_mtu(adapter, netdev->mtu);
ed25ffa1 1083
922c4f2c 1084 adapter->ahw.linkup = 0;
dcd56fdb 1085 mod_timer(&adapter->watchdog_timer, jiffies);
05aaa02d
DP		 1086
1087 napi_enable(&adapter->napi);
1088 netxen_nic_enable_int(adapter);
1089
dcd56fdb 1090 netif_start_queue(netdev);
3d396eb1
AK		 1091
1092 return 0;
2956640d
DP		 1093
1094err_out_free_irq:
1095 free_irq(adapter->irq, adapter);
9e410778
DP		 1096err_out_free_rxbuf:
1097 netxen_release_rx_buffers(adapter);
092bc571 1098err_out_free_hw:
2956640d
DP		 1099 netxen_free_hw_resources(adapter);
1100err_out_free_sw:
1101 netxen_free_sw_resources(adapter);
1102 return err;
3d396eb1
AK		 1103}
1104
1105/*
1106 * netxen_nic_close - Disables a network interface entry point
1107 */
1108static int netxen_nic_close(struct net_device *netdev)
1109{
3176ff3e 1110 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1
AK		 1111
1112 netif_carrier_off(netdev);
1113 netif_stop_queue(netdev);
bea3348e 1114 napi_disable(&adapter->napi);
3d396eb1 1115
72b0a7a8 1116 if (adapter->stop_port)
1117 adapter->stop_port(adapter);
1118
e01872af 1119 netxen_nic_disable_int(adapter);
1120
2956640d
DP		 1121 netxen_release_tx_buffers(adapter);
1122
922c4f2c
DP		 1123 FLUSH_SCHEDULED_WORK();
1124 del_timer_sync(&adapter->watchdog_timer);
3d396eb1
AK		 1125
1126 return 0;
1127}
1128
cd1f8160
DP		 1129void netxen_tso_check(struct netxen_adapter *adapter,
1130 struct cmd_desc_type0 *desc, struct sk_buff *skb)
1131{
1132 if (desc->mss) {
1133 desc->total_hdr_length = (sizeof(struct ethhdr) +
1134 ip_hdrlen(skb) + tcp_hdrlen(skb));
1135
1136 if ((NX_IS_REVISION_P3(adapter->ahw.revision_id)) &&
1137 (skb->protocol == htons(ETH_P_IPV6)))
1138 netxen_set_cmd_desc_opcode(desc, TX_TCP_LSO6);
1139 else
1140 netxen_set_cmd_desc_opcode(desc, TX_TCP_LSO);
1141
1142 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1143 if (ip_hdr(skb)->protocol == IPPROTO_TCP)
1144 netxen_set_cmd_desc_opcode(desc, TX_TCP_PKT);
1145 else if (ip_hdr(skb)->protocol == IPPROTO_UDP)
1146 netxen_set_cmd_desc_opcode(desc, TX_UDP_PKT);
1147 else
1148 return;
1149 }
1150 desc->tcp_hdr_offset = skb_transport_offset(skb);
1151 desc->ip_hdr_offset = skb_network_offset(skb);
1152}
1153
3d396eb1
AK		 1154static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1155{
3176ff3e 1156 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1
AK		 1157 struct netxen_hardware_context *hw = &adapter->ahw;
1158 unsigned int first_seg_len = skb->len - skb->data_len;
1159 struct netxen_skb_frag *buffrag;
1160 unsigned int i;
1161
ba53e6b4 1162 u32 producer, consumer;
3d396eb1
AK		 1163 u32 saved_producer = 0;
1164 struct cmd_desc_type0 *hwdesc;
1165 int k;
1166 struct netxen_cmd_buffer *pbuf = NULL;
3d396eb1 1167 int frag_count;
3d396eb1 1168 int no_of_desc;
ba53e6b4 1169 u32 num_txd = adapter->max_tx_desc_count;
3d396eb1 1170
3d396eb1
AK		 1171 frag_count = skb_shinfo(skb)->nr_frags + 1;
1172
3d396eb1
AK		 1173 /* There 4 fragments per descriptor */
1174 no_of_desc = (frag_count + 3) >> 2;
cd1f8160 1175 if (netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) {
cb8011ad
AK		 1176 if (skb_shinfo(skb)->gso_size > 0) {
1177
3d396eb1 1178 no_of_desc++;
ab6a5bb6 1179 if ((ip_hdrlen(skb) + tcp_hdrlen(skb) +
c9bdd4b5 1180 sizeof(struct ethhdr)) >
ed25ffa1 1181 (sizeof(struct cmd_desc_type0) - 2)) {
cb8011ad
AK		 1182 no_of_desc++;
1183 }
3d396eb1
AK		 1184 }
1185 }
53a01e00 1186
ba53e6b4
DP		 1187 producer = adapter->cmd_producer;
1188 smp_mb();
1189 consumer = adapter->last_cmd_consumer;
1190 if ((no_of_desc+2) > find_diff_among(producer, consumer, num_txd)) {
1191 netif_stop_queue(netdev);
1192 smp_mb();
1193 return NETDEV_TX_BUSY;
53a01e00 1194 }
3d396eb1 1195
3d396eb1 1196 /* Copy the descriptors into the hardware */
3d396eb1
AK		 1197 saved_producer = producer;
1198 hwdesc = &hw->cmd_desc_head[producer];
1199 memset(hwdesc, 0, sizeof(struct cmd_desc_type0));
1200 /* Take skb->data itself */
1201 pbuf = &adapter->cmd_buf_arr[producer];
cd1f8160
DP		 1202 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1203 skb_shinfo(skb)->gso_size > 0) {
a608ab9c 1204 pbuf->mss = skb_shinfo(skb)->gso_size;
ed33ebe4 1205 hwdesc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
3d396eb1
AK		 1206 } else {
1207 pbuf->mss = 0;
1208 hwdesc->mss = 0;
1209 }
3d396eb1
AK		 1210 pbuf->total_length = skb->len;
1211 pbuf->skb = skb;
1212 pbuf->cmd = TX_ETHER_PKT;
1213 pbuf->frag_count = frag_count;
3176ff3e 1214 pbuf->port = adapter->portnum;
3d396eb1 1215 buffrag = &pbuf->frag_array[0];
3176ff3e 1216 buffrag->dma = pci_map_single(adapter->pdev, skb->data, first_seg_len,
3d396eb1
AK		 1217 PCI_DMA_TODEVICE);
1218 buffrag->length = first_seg_len;
ed25ffa1
AK		 1219 netxen_set_cmd_desc_totallength(hwdesc, skb->len);
1220 netxen_set_cmd_desc_num_of_buff(hwdesc, frag_count);
1221 netxen_set_cmd_desc_opcode(hwdesc, TX_ETHER_PKT);
3d396eb1 1222
3176ff3e 1223 netxen_set_cmd_desc_port(hwdesc, adapter->portnum);
6c80b18d 1224 netxen_set_cmd_desc_ctxid(hwdesc, adapter->portnum);
3d396eb1
AK		 1225 hwdesc->buffer1_length = cpu_to_le16(first_seg_len);
1226 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1227
1228 for (i = 1, k = 1; i < frag_count; i++, k++) {
1229 struct skb_frag_struct *frag;
1230 int len, temp_len;
1231 unsigned long offset;
1232 dma_addr_t temp_dma;
1233
1234 /* move to next desc. if there is a need */
1235 if ((i & 0x3) == 0) {
1236 k = 0;
ba53e6b4 1237 producer = get_next_index(producer, num_txd);
3d396eb1
AK		 1238 hwdesc = &hw->cmd_desc_head[producer];
1239 memset(hwdesc, 0, sizeof(struct cmd_desc_type0));
53a01e00 1240 pbuf = &adapter->cmd_buf_arr[producer];
1241 pbuf->skb = NULL;
3d396eb1
AK		 1242 }
1243 frag = &skb_shinfo(skb)->frags[i - 1];
1244 len = frag->size;
1245 offset = frag->page_offset;
1246
1247 temp_len = len;
3176ff3e 1248 temp_dma = pci_map_page(adapter->pdev, frag->page, offset,
3d396eb1
AK		 1249 len, PCI_DMA_TODEVICE);
1250
1251 buffrag++;
1252 buffrag->dma = temp_dma;
1253 buffrag->length = temp_len;
1254
3d396eb1
AK		 1255 switch (k) {
1256 case 0:
1257 hwdesc->buffer1_length = cpu_to_le16(temp_len);
1258 hwdesc->addr_buffer1 = cpu_to_le64(temp_dma);
1259 break;
1260 case 1:
1261 hwdesc->buffer2_length = cpu_to_le16(temp_len);
1262 hwdesc->addr_buffer2 = cpu_to_le64(temp_dma);
1263 break;
1264 case 2:
1265 hwdesc->buffer3_length = cpu_to_le16(temp_len);
1266 hwdesc->addr_buffer3 = cpu_to_le64(temp_dma);
1267 break;
1268 case 3:
a608ab9c 1269 hwdesc->buffer4_length = cpu_to_le16(temp_len);
3d396eb1
AK		 1270 hwdesc->addr_buffer4 = cpu_to_le64(temp_dma);
1271 break;
1272 }
1273 frag++;
1274 }
ba53e6b4 1275 producer = get_next_index(producer, num_txd);
3d396eb1
AK		 1276
1277 /* might change opcode to TX_TCP_LSO */
1278 netxen_tso_check(adapter, &hw->cmd_desc_head[saved_producer], skb);
1279
1280 /* For LSO, we need to copy the MAC/IP/TCP headers into
1281 * the descriptor ring
1282 */
ed25ffa1
AK		 1283 if (netxen_get_cmd_desc_opcode(&hw->cmd_desc_head[saved_producer])
1284 == TX_TCP_LSO) {
3d396eb1
AK		 1285 int hdr_len, first_hdr_len, more_hdr;
1286 hdr_len = hw->cmd_desc_head[saved_producer].total_hdr_length;
ed25ffa1
AK		 1287 if (hdr_len > (sizeof(struct cmd_desc_type0) - 2)) {
1288 first_hdr_len = sizeof(struct cmd_desc_type0) - 2;
3d396eb1
AK		 1289 more_hdr = 1;
1290 } else {
1291 first_hdr_len = hdr_len;
1292 more_hdr = 0;
1293 }
1294 /* copy the MAC/IP/TCP headers to the cmd descriptor list */
1295 hwdesc = &hw->cmd_desc_head[producer];
53a01e00 1296 pbuf = &adapter->cmd_buf_arr[producer];
1297 pbuf->skb = NULL;
3d396eb1
AK		 1298
1299 /* copy the first 64 bytes */
ed25ffa1 1300 memcpy(((void *)hwdesc) + 2,
3d396eb1 1301 (void *)(skb->data), first_hdr_len);
ba53e6b4 1302 producer = get_next_index(producer, num_txd);
3d396eb1
AK		 1303
1304 if (more_hdr) {
1305 hwdesc = &hw->cmd_desc_head[producer];
53a01e00 1306 pbuf = &adapter->cmd_buf_arr[producer];
1307 pbuf->skb = NULL;
3d396eb1
AK		 1308 /* copy the next 64 bytes - should be enough except
1309 * for pathological case
1310 */
d626f62b
ACM		 1311 skb_copy_from_linear_data_offset(skb, first_hdr_len,
1312 hwdesc,
1313 (hdr_len -
1314 first_hdr_len));
ba53e6b4 1315 producer = get_next_index(producer, num_txd);
3d396eb1
AK		 1316 }
1317 }
6c80b18d 1318
ba53e6b4 1319 adapter->cmd_producer = producer;
5dc16268 1320 adapter->stats.txbytes += skb->len;
6c80b18d 1321
ba53e6b4 1322 netxen_nic_update_cmd_producer(adapter, adapter->cmd_producer);
3d396eb1 1323
ba53e6b4 1324 adapter->stats.xmitcalled++;
3d396eb1
AK		 1325 netdev->trans_start = jiffies;
1326
3d396eb1
AK		 1327 return NETDEV_TX_OK;
1328}
1329
a97342f9
DP		 1330static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1331{
1332 struct net_device *netdev = adapter->netdev;
1333 uint32_t temp, temp_state, temp_val;
1334 int rv = 0;
1335
1336 temp = adapter->pci_read_normalize(adapter, CRB_TEMP_STATE);
1337
1338 temp_state = nx_get_temp_state(temp);
1339 temp_val = nx_get_temp_val(temp);
1340
1341 if (temp_state == NX_TEMP_PANIC) {
1342 printk(KERN_ALERT
1343 "%s: Device temperature %d degrees C exceeds"
1344 " maximum allowed. Hardware has been shut down.\n",
1345 netxen_nic_driver_name, temp_val);
1346
1347 netif_carrier_off(netdev);
1348 netif_stop_queue(netdev);
1349 rv = 1;
1350 } else if (temp_state == NX_TEMP_WARN) {
1351 if (adapter->temp == NX_TEMP_NORMAL) {
1352 printk(KERN_ALERT
1353 "%s: Device temperature %d degrees C "
1354 "exceeds operating range."
1355 " Immediate action needed.\n",
1356 netxen_nic_driver_name, temp_val);
1357 }
1358 } else {
1359 if (adapter->temp == NX_TEMP_WARN) {
1360 printk(KERN_INFO
1361 "%s: Device temperature is now %d degrees C"
1362 " in normal range.\n", netxen_nic_driver_name,
1363 temp_val);
1364 }
1365 }
1366 adapter->temp = temp_state;
1367 return rv;
1368}
1369
1370static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1371{
1372 struct net_device *netdev = adapter->netdev;
1373 u32 val, port, linkup;
1374
1375 port = adapter->physical_port;
1376
24a7a455
DP		 1377 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1378 val = adapter->pci_read_normalize(adapter, CRB_XG_STATE_P3);
1379 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1380 linkup = (val == XG_LINK_UP_P3);
c9fc891f 1381 } else {
24a7a455
DP		 1382 val = adapter->pci_read_normalize(adapter, CRB_XG_STATE);
1383 if (adapter->ahw.board_type == NETXEN_NIC_GBE)
1384 linkup = (val >> port) & 1;
1385 else {
c9fc891f
DP		 1386 val = (val >> port*8) & 0xff;
1387 linkup = (val == XG_LINK_UP);
c9fc891f 1388 }
a97342f9
DP		 1389 }
1390
1391 if (adapter->ahw.linkup && !linkup) {
1392 printk(KERN_INFO "%s: %s NIC Link is down\n",
1393 netxen_nic_driver_name, netdev->name);
1394 adapter->ahw.linkup = 0;
1395 if (netif_running(netdev)) {
1396 netif_carrier_off(netdev);
1397 netif_stop_queue(netdev);
1398 }
1399 } else if (!adapter->ahw.linkup && linkup) {
1400 printk(KERN_INFO "%s: %s NIC Link is up\n",
1401 netxen_nic_driver_name, netdev->name);
1402 adapter->ahw.linkup = 1;
1403 if (netif_running(netdev)) {
1404 netif_carrier_on(netdev);
1405 netif_wake_queue(netdev);
1406 }
1407 }
1408}
1409
3d396eb1
AK		 1410static void netxen_watchdog(unsigned long v)
1411{
1412 struct netxen_adapter *adapter = (struct netxen_adapter *)v;
ed25ffa1
AK		 1413
1414 SCHEDULE_WORK(&adapter->watchdog_task);
3d396eb1
AK		 1415}
1416
a97342f9
DP		 1417void netxen_watchdog_task(struct work_struct *work)
1418{
1419 struct netxen_adapter *adapter =
1420 container_of(work, struct netxen_adapter, watchdog_task);
1421
1422 if ((adapter->portnum == 0) && netxen_nic_check_temp(adapter))
1423 return;
1424
1425 netxen_nic_handle_phy_intr(adapter);
1426
922c4f2c
DP		 1427 if (netif_running(adapter->netdev))
1428 mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ);
a97342f9
DP		 1429}
1430
3d396eb1
AK		 1431static void netxen_tx_timeout(struct net_device *netdev)
1432{
3176ff3e
MT		 1433 struct netxen_adapter *adapter = (struct netxen_adapter *)
1434 netdev_priv(netdev);
1435 SCHEDULE_WORK(&adapter->tx_timeout_task);
3d396eb1
AK		 1436}
1437
6d5aefb8 1438static void netxen_tx_timeout_task(struct work_struct *work)
3d396eb1 1439{
4790654c 1440 struct netxen_adapter *adapter =
3176ff3e 1441 container_of(work, struct netxen_adapter, tx_timeout_task);
3d396eb1
AK		 1442
1443 printk(KERN_ERR "%s %s: transmit timeout, resetting.\n",
6c80b18d 1444 netxen_nic_driver_name, adapter->netdev->name);
3d396eb1 1445
ba53e6b4
DP		 1446 netxen_nic_disable_int(adapter);
1447 napi_disable(&adapter->napi);
1448
6c80b18d 1449 adapter->netdev->trans_start = jiffies;
ba53e6b4
DP		 1450
1451 napi_enable(&adapter->napi);
1452 netxen_nic_enable_int(adapter);
6c80b18d 1453 netif_wake_queue(adapter->netdev);
3d396eb1
AK		 1454}
1455
a97342f9
DP		 1456/*
1457 * netxen_nic_get_stats - Get System Network Statistics
1458 * @netdev: network interface device structure
1459 */
1460struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
1461{
1462 struct netxen_adapter *adapter = netdev_priv(netdev);
1463 struct net_device_stats *stats = &adapter->net_stats;
1464
1465 memset(stats, 0, sizeof(*stats));
1466
1467 /* total packets received */
1468 stats->rx_packets = adapter->stats.no_rcv;
1469 /* total packets transmitted */
1470 stats->tx_packets = adapter->stats.xmitedframes +
1471 adapter->stats.xmitfinished;
1472 /* total bytes received */
1473 stats->rx_bytes = adapter->stats.rxbytes;
1474 /* total bytes transmitted */
1475 stats->tx_bytes = adapter->stats.txbytes;
1476 /* bad packets received */
1477 stats->rx_errors = adapter->stats.rcvdbadskb;
1478 /* packet transmit problems */
1479 stats->tx_errors = adapter->stats.nocmddescriptor;
1480 /* no space in linux buffers */
1481 stats->rx_dropped = adapter->stats.rxdropped;
1482 /* no space available in linux */
1483 stats->tx_dropped = adapter->stats.txdropped;
1484
1485 return stats;
1486}
1487
e4c93c81 1488static irqreturn_t netxen_intr(int irq, void *data)
3d396eb1 1489{
1daec86a 1490 struct netxen_adapter *adapter = data;
d71e1be8
DP		 1491 u32 status = 0;
1492
1493 status = adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1494
1495 if (!(status & adapter->legacy_intr.int_vec_bit))
05aaa02d 1496 return IRQ_NONE;
e01872af 1497
d71e1be8
DP		 1498 if (adapter->ahw.revision_id >= NX_P3_B1) {
1499 /* check interrupt state machine, to be sure */
1500 status = adapter->pci_read_immediate(adapter,
1501 ISR_INT_STATE_REG);
1502 if (!ISR_LEGACY_INT_TRIGGERED(status))
1503 return IRQ_NONE;
1504
092bc571
DP		 1505 } else {
1506 unsigned long our_int = 0;
d71e1be8
DP		 1507
1508 our_int = adapter->pci_read_normalize(adapter, CRB_INT_VECTOR);
092bc571 1509
d71e1be8 1510 /* not our interrupt */
092bc571 1511 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
d71e1be8
DP		 1512 return IRQ_NONE;
1513
092bc571
DP		 1514 /* claim interrupt */
1515 adapter->pci_write_normalize(adapter,
1516 CRB_INT_VECTOR, (our_int & 0xffffffff));
e01872af 1517 }
1518
092bc571
DP		 1519 /* clear interrupt */
1520 if (adapter->fw_major < 4)
1521 netxen_nic_disable_int(adapter);
1522
1523 adapter->pci_write_immediate(adapter,
1524 adapter->legacy_intr.tgt_status_reg,
1525 0xffffffff);
1526 /* read twice to ensure write is flushed */
1527 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1528 adapter->pci_read_immediate(adapter, ISR_INT_VECTOR);
1529
1530 napi_schedule(&adapter->napi);
3d396eb1
AK		 1531
1532 return IRQ_HANDLED;
1533}
1534
e4c93c81 1535static irqreturn_t netxen_msi_intr(int irq, void *data)
05aaa02d
DP		 1536{
1537 struct netxen_adapter *adapter = data;
1538
092bc571
DP		 1539 /* clear interrupt */
1540 adapter->pci_write_immediate(adapter,
1541 msi_tgt_status[adapter->ahw.pci_func], 0xffffffff);
1542
1543 napi_schedule(&adapter->napi);
05aaa02d
DP		 1544 return IRQ_HANDLED;
1545}
1546
bea3348e 1547static int netxen_nic_poll(struct napi_struct *napi, int budget)
3d396eb1 1548{
bea3348e 1549 struct netxen_adapter *adapter = container_of(napi, struct netxen_adapter, napi);
05aaa02d 1550 int tx_complete;
3d396eb1 1551 int ctx;
bea3348e 1552 int work_done;
3d396eb1 1553
05aaa02d 1554 tx_complete = netxen_process_cmd_ring(adapter);
3d396eb1 1555
80922fbc 1556 work_done = 0;
3d396eb1
AK		 1557 for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) {
1558 /*
1559 * Fairness issue. This will give undue weight to the
1560 * receive context 0.
1561 */
1562
1563 /*
1564 * To avoid starvation, we give each of our receivers,
1565 * a fraction of the quota. Sometimes, it might happen that we
1566 * have enough quota to process every packet, but since all the
1567 * packets are on one context, it gets only half of the quota,
1568 * and ends up not processing it.
1569 */
bea3348e
SH		 1570 work_done += netxen_process_rcv_ring(adapter, ctx,
1571 budget / MAX_RCV_CTX);
3d396eb1
AK		 1572 }
1573
05aaa02d
DP		 1574 if ((work_done < budget) && tx_complete) {
1575 netif_rx_complete(adapter->netdev, &adapter->napi);
3d396eb1
AK		 1576 netxen_nic_enable_int(adapter);
1577 }
1578
bea3348e 1579 return work_done;
3d396eb1
AK		 1580}
1581
1582#ifdef CONFIG_NET_POLL_CONTROLLER
1583static void netxen_nic_poll_controller(struct net_device *netdev)
1584{
3176ff3e 1585 struct netxen_adapter *adapter = netdev_priv(netdev);
3d396eb1 1586 disable_irq(adapter->irq);
1494a814 1587 netxen_intr(adapter->irq, adapter);
3d396eb1
AK		 1588 enable_irq(adapter->irq);
1589}
1590#endif
3d396eb1
AK		 1591
1592static struct pci_driver netxen_driver = {
1593 .name = netxen_nic_driver_name,
1594 .id_table = netxen_pci_tbl,
1595 .probe = netxen_nic_probe,
1596 .remove = __devexit_p(netxen_nic_remove)
1597};
1598
1599/* Driver Registration on NetXen card */
1600
1601static int __init netxen_init_module(void)
1602{
79ea13ce 1603 if ((netxen_workq = create_singlethread_workqueue("netxen")) == NULL)
ed25ffa1
AK		 1604 return -ENOMEM;
1605
184231bd 1606 return pci_register_driver(&netxen_driver);
3d396eb1
AK		 1607}
1608
1609module_init(netxen_init_module);
1610
1611static void __exit netxen_exit_module(void)
1612{
3d396eb1 1613 pci_unregister_driver(&netxen_driver);
9de06610 1614 destroy_workqueue(netxen_workq);
3d396eb1
AK		 1615}
1616
1617module_exit(netxen_exit_module);
Linux 6.x block layer and io_uring tree(s)