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8#include <linux/slab.h>
9#include <linux/vmalloc.h>
10#include <linux/interrupt.h>
11#include "netxen_nic_hw.h"
12
13#include "netxen_nic.h"
14
15#include <linux/dma-mapping.h>
16#include <linux/if_vlan.h>
17#include <net/ip.h>
18#include <linux/ipv6.h>
19#include <linux/inetdevice.h>
20#include <linux/sysfs.h>
21#include <linux/aer.h>
22
23MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver");
24MODULE_LICENSE("GPL");
25MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
26MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
27
28char netxen_nic_driver_name[] = "netxen_nic";
29static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
30 NETXEN_NIC_LINUX_VERSIONID;
31
32static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
33
34
35static int wol_port_mode = 5;
36
37static int use_msi = 1;
38
39static int use_msi_x = 1;
40
41static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
42module_param(auto_fw_reset, int, 0644);
43MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
44
45static int netxen_nic_probe(struct pci_dev *pdev,
46 const struct pci_device_id *ent);
47static void netxen_nic_remove(struct pci_dev *pdev);
48static int netxen_nic_open(struct net_device *netdev);
49static int netxen_nic_close(struct net_device *netdev);
50static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
51 struct net_device *);
52static void netxen_tx_timeout(struct net_device *netdev, unsigned int txqueue);
53static void netxen_tx_timeout_task(struct work_struct *work);
54static void netxen_fw_poll_work(struct work_struct *work);
55static void netxen_schedule_work(struct netxen_adapter *adapter,
56 work_func_t func, int delay);
57static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
58static int netxen_nic_poll(struct napi_struct *napi, int budget);
59
60static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
61static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
62static void netxen_create_diag_entries(struct netxen_adapter *adapter);
63static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
64static int nx_dev_request_aer(struct netxen_adapter *adapter);
65static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
66static int netxen_can_start_firmware(struct netxen_adapter *adapter);
67
68static irqreturn_t netxen_intr(int irq, void *data);
69static irqreturn_t netxen_msi_intr(int irq, void *data);
70static irqreturn_t netxen_msix_intr(int irq, void *data);
71
72static void netxen_free_ip_list(struct netxen_adapter *, bool);
73static void netxen_restore_indev_addr(struct net_device *dev, unsigned long);
74static void netxen_nic_get_stats(struct net_device *dev,
75 struct rtnl_link_stats64 *stats);
76static int netxen_nic_set_mac(struct net_device *netdev, void *p);
77
78
79#define ENTRY(device) \
80 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
81 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
82
83static const struct pci_device_id netxen_pci_tbl[] = {
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),
92 {0,}
93};
94
95MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
96
97static uint32_t crb_cmd_producer[4] = {
98 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
99 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
100};
101
102void
103netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
104 struct nx_host_tx_ring *tx_ring)
105{
106 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
107}
108
109static uint32_t crb_cmd_consumer[4] = {
110 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
111 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
112};
113
114static inline void
115netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
116 struct nx_host_tx_ring *tx_ring)
117{
118 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
119}
120
121static uint32_t msi_tgt_status[8] = {
122 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
123 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
124 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
125 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
126};
127
128static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
129
130static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
131{
132 struct netxen_adapter *adapter = sds_ring->adapter;
133
134 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
135}
136
137static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
138{
139 struct netxen_adapter *adapter = sds_ring->adapter;
140
141 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
142
143 if (!NETXEN_IS_MSI_FAMILY(adapter))
144 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
145}
146
147static int
148netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
149{
150 int size = sizeof(struct nx_host_sds_ring) * count;
151
152 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
153
154 return recv_ctx->sds_rings == NULL;
155}
156
157static void
158netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
159{
160 kfree(recv_ctx->sds_rings);
161 recv_ctx->sds_rings = NULL;
162}
163
164static int
165netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
166{
167 int ring;
168 struct nx_host_sds_ring *sds_ring;
169 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
170
171 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
172 return -ENOMEM;
173
174 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
175 sds_ring = &recv_ctx->sds_rings[ring];
176 netif_napi_add(netdev, &sds_ring->napi,
177 netxen_nic_poll, NAPI_POLL_WEIGHT);
178 }
179
180 return 0;
181}
182
183static void
184netxen_napi_del(struct netxen_adapter *adapter)
185{
186 int ring;
187 struct nx_host_sds_ring *sds_ring;
188 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
189
190 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
191 sds_ring = &recv_ctx->sds_rings[ring];
192 netif_napi_del(&sds_ring->napi);
193 }
194
195 netxen_free_sds_rings(&adapter->recv_ctx);
196}
197
198static void
199netxen_napi_enable(struct netxen_adapter *adapter)
200{
201 int ring;
202 struct nx_host_sds_ring *sds_ring;
203 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
204
205 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
206 sds_ring = &recv_ctx->sds_rings[ring];
207 napi_enable(&sds_ring->napi);
208 netxen_nic_enable_int(sds_ring);
209 }
210}
211
212static void
213netxen_napi_disable(struct netxen_adapter *adapter)
214{
215 int ring;
216 struct nx_host_sds_ring *sds_ring;
217 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
218
219 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
220 sds_ring = &recv_ctx->sds_rings[ring];
221 netxen_nic_disable_int(sds_ring);
222 napi_synchronize(&sds_ring->napi);
223 napi_disable(&sds_ring->napi);
224 }
225}
226
227static int nx_set_dma_mask(struct netxen_adapter *adapter)
228{
229 struct pci_dev *pdev = adapter->pdev;
230 uint64_t mask, cmask;
231
232 adapter->pci_using_dac = 0;
233
234 mask = DMA_BIT_MASK(32);
235 cmask = DMA_BIT_MASK(32);
236
237 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
238#ifndef CONFIG_IA64
239 mask = DMA_BIT_MASK(35);
240#endif
241 } else {
242 mask = DMA_BIT_MASK(39);
243 cmask = mask;
244 }
245
246 if (dma_set_mask(&pdev->dev, mask) == 0 &&
247 dma_set_coherent_mask(&pdev->dev, cmask) == 0) {
248 adapter->pci_using_dac = 1;
249 return 0;
250 }
251
252 return -EIO;
253}
254
255
256static int
257nx_update_dma_mask(struct netxen_adapter *adapter)
258{
259 int change, shift, err;
260 uint64_t mask, old_mask, old_cmask;
261 struct pci_dev *pdev = adapter->pdev;
262
263 change = 0;
264
265 shift = NXRD32(adapter, CRB_DMA_SHIFT);
266 if (shift > 32)
267 return 0;
268
269 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
270 change = 1;
271 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
272 change = 1;
273
274 if (change) {
275 old_mask = pdev->dma_mask;
276 old_cmask = pdev->dev.coherent_dma_mask;
277
278 mask = DMA_BIT_MASK(32+shift);
279
280 err = dma_set_mask(&pdev->dev, mask);
281 if (err)
282 goto err_out;
283
284 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
285
286 err = dma_set_coherent_mask(&pdev->dev, mask);
287 if (err)
288 goto err_out;
289 }
290 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
291 }
292
293 return 0;
294
295err_out:
296 dma_set_mask(&pdev->dev, old_mask);
297 dma_set_coherent_mask(&pdev->dev, old_cmask);
298 return err;
299}
300
301static int
302netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
303{
304 u32 val, timeout;
305
306 if (first_boot == 0x55555555) {
307
308 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
309
310 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
311 return 0;
312
313
314 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
315 if (!(first_boot & 0x4)) {
316 first_boot |= 0x4;
317 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
318 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
319 }
320
321
322 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
323 if (first_boot != 0x80000f) {
324
325 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
326 return -EIO;
327 }
328
329
330 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
331 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
332 timeout = 0;
333 do {
334 msleep(1);
335 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
336
337 if (++timeout > 5000)
338 return -EIO;
339
340 } while (val == NETXEN_BDINFO_MAGIC);
341 }
342 return 0;
343}
344
345static void netxen_set_port_mode(struct netxen_adapter *adapter)
346{
347 u32 val, data;
348
349 val = adapter->ahw.board_type;
350 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
351 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
352 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
353 data = NETXEN_PORT_MODE_802_3_AP;
354 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
355 } else if (port_mode == NETXEN_PORT_MODE_XG) {
356 data = NETXEN_PORT_MODE_XG;
357 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
358 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
359 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
360 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
361 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
362 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
363 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
364 } else {
365 data = NETXEN_PORT_MODE_AUTO_NEG;
366 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
367 }
368
369 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
370 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
371 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
372 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
373 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
374 }
375 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
376 }
377}
378
379#define PCI_CAP_ID_GEN 0x10
380
381static void netxen_pcie_strap_init(struct netxen_adapter *adapter)
382{
383 u32 pdevfuncsave;
384 u32 c8c9value = 0;
385 u32 chicken = 0;
386 u32 control = 0;
387 int i, pos;
388 struct pci_dev *pdev;
389
390 pdev = adapter->pdev;
391
392 chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3));
393
394 chicken &= 0xFCFFFFFF;
395
396
397
398
399 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN);
400 if (pos == 0xC0) {
401 pci_read_config_dword(pdev, pos + 0x10, &control);
402 if ((control & 0x000F0000) != 0x00020000) {
403
404 chicken |= 0x01000000;
405 }
406 dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n");
407 c8c9value = 0xF1000;
408 } else {
409
410 chicken |= 0x01000000;
411 dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n");
412 if (adapter->ahw.revision_id == NX_P3_B0)
413 c8c9value = 0xF1020;
414 else
415 c8c9value = 0;
416 }
417
418 NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken);
419
420 if (!c8c9value)
421 return;
422
423 pdevfuncsave = pdev->devfn;
424 if (pdevfuncsave & 0x07)
425 return;
426
427 for (i = 0; i < 8; i++) {
428 pci_read_config_dword(pdev, pos + 8, &control);
429 pci_read_config_dword(pdev, pos + 8, &control);
430 pci_write_config_dword(pdev, pos + 8, c8c9value);
431 pdev->devfn++;
432 }
433 pdev->devfn = pdevfuncsave;
434}
435
436static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
437{
438 u32 control;
439
440 if (pdev->msix_cap) {
441 pci_read_config_dword(pdev, pdev->msix_cap, &control);
442 if (enable)
443 control |= PCI_MSIX_FLAGS_ENABLE;
444 else
445 control = 0;
446 pci_write_config_dword(pdev, pdev->msix_cap, control);
447 }
448}
449
450static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
451{
452 int i;
453
454 for (i = 0; i < count; i++)
455 adapter->msix_entries[i].entry = i;
456}
457
458static int
459netxen_read_mac_addr(struct netxen_adapter *adapter)
460{
461 int i;
462 unsigned char *p;
463 u64 mac_addr;
464 struct net_device *netdev = adapter->netdev;
465 struct pci_dev *pdev = adapter->pdev;
466
467 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
468 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
469 return -EIO;
470 } else {
471 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
472 return -EIO;
473 }
474
475 p = (unsigned char *)&mac_addr;
476 for (i = 0; i < 6; i++)
477 netdev->dev_addr[i] = *(p + 5 - i);
478
479 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
480
481
482
483 if (!is_valid_ether_addr(netdev->dev_addr))
484 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
485
486 return 0;
487}
488
489static int netxen_nic_set_mac(struct net_device *netdev, void *p)
490{
491 struct netxen_adapter *adapter = netdev_priv(netdev);
492 struct sockaddr *addr = p;
493
494 if (!is_valid_ether_addr(addr->sa_data))
495 return -EADDRNOTAVAIL;
496
497 if (netif_running(netdev)) {
498 netif_device_detach(netdev);
499 netxen_napi_disable(adapter);
500 }
501
502 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
503 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
504 adapter->macaddr_set(adapter, addr->sa_data);
505
506 if (netif_running(netdev)) {
507 netif_device_attach(netdev);
508 netxen_napi_enable(adapter);
509 }
510 return 0;
511}
512
513static void netxen_set_multicast_list(struct net_device *dev)
514{
515 struct netxen_adapter *adapter = netdev_priv(dev);
516
517 adapter->set_multi(dev);
518}
519
520static netdev_features_t netxen_fix_features(struct net_device *dev,
521 netdev_features_t features)
522{
523 if (!(features & NETIF_F_RXCSUM)) {
524 netdev_info(dev, "disabling LRO as RXCSUM is off\n");
525
526 features &= ~NETIF_F_LRO;
527 }
528
529 return features;
530}
531
532static int netxen_set_features(struct net_device *dev,
533 netdev_features_t features)
534{
535 struct netxen_adapter *adapter = netdev_priv(dev);
536 int hw_lro;
537
538 if (!((dev->features ^ features) & NETIF_F_LRO))
539 return 0;
540
541 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED
542 : NETXEN_NIC_LRO_DISABLED;
543
544 if (netxen_config_hw_lro(adapter, hw_lro))
545 return -EIO;
546
547 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter))
548 return -EIO;
549
550 return 0;
551}
552
553static const struct net_device_ops netxen_netdev_ops = {
554 .ndo_open = netxen_nic_open,
555 .ndo_stop = netxen_nic_close,
556 .ndo_start_xmit = netxen_nic_xmit_frame,
557 .ndo_get_stats64 = netxen_nic_get_stats,
558 .ndo_validate_addr = eth_validate_addr,
559 .ndo_set_rx_mode = netxen_set_multicast_list,
560 .ndo_set_mac_address = netxen_nic_set_mac,
561 .ndo_change_mtu = netxen_nic_change_mtu,
562 .ndo_tx_timeout = netxen_tx_timeout,
563 .ndo_fix_features = netxen_fix_features,
564 .ndo_set_features = netxen_set_features,
565};
566
567static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter,
568 u32 mode)
569{
570 NXWR32(adapter, NETXEN_INTR_MODE_REG, mode);
571}
572
573static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter)
574{
575 return NXRD32(adapter, NETXEN_INTR_MODE_REG);
576}
577
578static void
579netxen_initialize_interrupt_registers(struct netxen_adapter *adapter)
580{
581 struct netxen_legacy_intr_set *legacy_intrp;
582 u32 tgt_status_reg, int_state_reg;
583
584 if (adapter->ahw.revision_id >= NX_P3_B0)
585 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
586 else
587 legacy_intrp = &legacy_intr[0];
588
589 tgt_status_reg = legacy_intrp->tgt_status_reg;
590 int_state_reg = ISR_INT_STATE_REG;
591
592 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
593 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg);
594 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
595 legacy_intrp->tgt_mask_reg);
596 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
597 legacy_intrp->pci_int_reg);
598 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
599
600 if (adapter->ahw.revision_id >= NX_P3_B1)
601 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
602 int_state_reg);
603 else
604 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
605 CRB_INT_VECTOR);
606}
607
608static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter,
609 int num_msix)
610{
611 struct pci_dev *pdev = adapter->pdev;
612 u32 value;
613 int err;
614
615 if (adapter->msix_supported) {
616 netxen_init_msix_entries(adapter, num_msix);
617 err = pci_enable_msix_range(pdev, adapter->msix_entries,
618 num_msix, num_msix);
619 if (err > 0) {
620 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
621 netxen_set_msix_bit(pdev, 1);
622
623 if (adapter->rss_supported)
624 adapter->max_sds_rings = num_msix;
625
626 dev_info(&pdev->dev, "using msi-x interrupts\n");
627 return 0;
628 }
629
630 }
631
632 if (use_msi && !pci_enable_msi(pdev)) {
633 value = msi_tgt_status[adapter->ahw.pci_func];
634 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
635 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value);
636 adapter->msix_entries[0].vector = pdev->irq;
637 dev_info(&pdev->dev, "using msi interrupts\n");
638 return 0;
639 }
640
641 dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n");
642 return -EIO;
643}
644
645static int netxen_setup_intr(struct netxen_adapter *adapter)
646{
647 struct pci_dev *pdev = adapter->pdev;
648 int num_msix;
649
650 if (adapter->rss_supported)
651 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
652 MSIX_ENTRIES_PER_ADAPTER : 2;
653 else
654 num_msix = 1;
655
656 adapter->max_sds_rings = 1;
657 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
658
659 netxen_initialize_interrupt_registers(adapter);
660 netxen_set_msix_bit(pdev, 0);
661
662 if (adapter->portnum == 0) {
663 if (!netxen_setup_msi_interrupts(adapter, num_msix))
664 netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE);
665 else
666 netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE);
667 } else {
668 if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE &&
669 netxen_setup_msi_interrupts(adapter, num_msix)) {
670 dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n");
671 return -EIO;
672 }
673 }
674
675 if (!NETXEN_IS_MSI_FAMILY(adapter)) {
676 adapter->msix_entries[0].vector = pdev->irq;
677 dev_info(&pdev->dev, "using legacy interrupts\n");
678 }
679 return 0;
680}
681
682static void
683netxen_teardown_intr(struct netxen_adapter *adapter)
684{
685 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
686 pci_disable_msix(adapter->pdev);
687 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
688 pci_disable_msi(adapter->pdev);
689}
690
691static void
692netxen_cleanup_pci_map(struct netxen_adapter *adapter)
693{
694 if (adapter->ahw.db_base != NULL)
695 iounmap(adapter->ahw.db_base);
696 if (adapter->ahw.pci_base0 != NULL)
697 iounmap(adapter->ahw.pci_base0);
698 if (adapter->ahw.pci_base1 != NULL)
699 iounmap(adapter->ahw.pci_base1);
700 if (adapter->ahw.pci_base2 != NULL)
701 iounmap(adapter->ahw.pci_base2);
702}
703
704static int
705netxen_setup_pci_map(struct netxen_adapter *adapter)
706{
707 void __iomem *db_ptr = NULL;
708
709 resource_size_t mem_base, db_base;
710 unsigned long mem_len, db_len = 0;
711
712 struct pci_dev *pdev = adapter->pdev;
713 int pci_func = adapter->ahw.pci_func;
714 struct netxen_hardware_context *ahw = &adapter->ahw;
715
716 int err = 0;
717
718
719
720
721
722 adapter->ahw.crb_win = -1;
723 adapter->ahw.ocm_win = -1;
724
725
726 mem_base = pci_resource_start(pdev, 0);
727 mem_len = pci_resource_len(pdev, 0);
728
729
730 if (mem_len == NETXEN_PCI_128MB_SIZE) {
731
732 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
733 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
734 SECOND_PAGE_GROUP_SIZE);
735 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
736 THIRD_PAGE_GROUP_SIZE);
737 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
738 ahw->pci_base2 == NULL) {
739 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
740 err = -EIO;
741 goto err_out;
742 }
743
744 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
745
746 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
747
748 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
749 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
750 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
751 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
752 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
753 err = -EIO;
754 goto err_out;
755 }
756
757 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
758
759 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
760 if (ahw->pci_base0 == NULL) {
761 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
762 return -EIO;
763 }
764 ahw->pci_len0 = mem_len;
765 } else {
766 return -EIO;
767 }
768
769 netxen_setup_hwops(adapter);
770
771 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
772
773 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
774 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
775 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
776
777 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
778 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
779 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
780 }
781
782 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
783 goto skip_doorbell;
784
785 db_base = pci_resource_start(pdev, 4);
786 db_len = pci_resource_len(pdev, 4);
787
788 if (db_len == 0) {
789 printk(KERN_ERR "%s: doorbell is disabled\n",
790 netxen_nic_driver_name);
791 err = -EIO;
792 goto err_out;
793 }
794
795 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
796 if (!db_ptr) {
797 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
798 netxen_nic_driver_name);
799 err = -EIO;
800 goto err_out;
801 }
802
803skip_doorbell:
804 adapter->ahw.db_base = db_ptr;
805 adapter->ahw.db_len = db_len;
806 return 0;
807
808err_out:
809 netxen_cleanup_pci_map(adapter);
810 return err;
811}
812
813static void
814netxen_check_options(struct netxen_adapter *adapter)
815{
816 u32 fw_major, fw_minor, fw_build, prev_fw_version;
817 char brd_name[NETXEN_MAX_SHORT_NAME];
818 char serial_num[32];
819 int i, offset, val, err;
820 __le32 *ptr32;
821 struct pci_dev *pdev = adapter->pdev;
822
823 adapter->driver_mismatch = 0;
824
825 ptr32 = (__le32 *)&serial_num;
826 offset = NX_FW_SERIAL_NUM_OFFSET;
827 for (i = 0; i < 8; i++) {
828 err = netxen_rom_fast_read(adapter, offset, &val);
829 if (err) {
830 dev_err(&pdev->dev, "error reading board info\n");
831 adapter->driver_mismatch = 1;
832 return;
833 }
834 ptr32[i] = cpu_to_le32(val);
835 offset += sizeof(u32);
836 }
837
838 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
839 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
840 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
841 prev_fw_version = adapter->fw_version;
842 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
843
844
845 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
846 if (adapter->mdump.md_template == NULL ||
847 adapter->fw_version > prev_fw_version) {
848 kfree(adapter->mdump.md_template);
849 adapter->mdump.md_template = NULL;
850 err = netxen_setup_minidump(adapter);
851 if (err)
852 dev_err(&adapter->pdev->dev,
853 "Failed to setup minidump rcode = %d\n", err);
854 }
855 }
856
857 if (adapter->portnum == 0) {
858 if (netxen_nic_get_brd_name_by_type(adapter->ahw.board_type,
859 brd_name))
860 strcpy(serial_num, "Unknown");
861
862 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
863 module_name(THIS_MODULE),
864 brd_name, serial_num, adapter->ahw.revision_id);
865 }
866
867 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
868 adapter->driver_mismatch = 1;
869 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
870 fw_major, fw_minor, fw_build);
871 return;
872 }
873
874 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
875 i = NXRD32(adapter, NETXEN_SRE_MISC);
876 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
877 }
878
879 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n",
880 NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build,
881 adapter->ahw.cut_through ? "cut-through" : "legacy");
882
883 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
884 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
885
886 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
887 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
888 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
889 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
890 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
891 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
892 }
893
894 adapter->msix_supported = 0;
895 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
896 adapter->msix_supported = !!use_msi_x;
897 adapter->rss_supported = !!use_msi_x;
898 } else {
899 u32 flashed_ver = 0;
900 netxen_rom_fast_read(adapter,
901 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
902 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
903
904 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
905 switch (adapter->ahw.board_type) {
906 case NETXEN_BRDTYPE_P2_SB31_10G:
907 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
908 adapter->msix_supported = !!use_msi_x;
909 adapter->rss_supported = !!use_msi_x;
910 break;
911 default:
912 break;
913 }
914 }
915 }
916
917 adapter->num_txd = MAX_CMD_DESCRIPTORS;
918
919 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
920 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
921 adapter->max_rds_rings = 3;
922 } else {
923 adapter->num_lro_rxd = 0;
924 adapter->max_rds_rings = 2;
925 }
926}
927
928static int
929netxen_start_firmware(struct netxen_adapter *adapter)
930{
931 int val, err, first_boot;
932 struct pci_dev *pdev = adapter->pdev;
933
934
935 err = nx_set_dma_mask(adapter);
936 if (err)
937 return err;
938
939 err = netxen_can_start_firmware(adapter);
940
941 if (err < 0)
942 return err;
943
944 if (!err)
945 goto wait_init;
946
947 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
948
949 err = netxen_check_hw_init(adapter, first_boot);
950 if (err) {
951 dev_err(&pdev->dev, "error in init HW init sequence\n");
952 return err;
953 }
954
955 netxen_request_firmware(adapter);
956
957 err = netxen_need_fw_reset(adapter);
958 if (err < 0)
959 goto err_out;
960 if (err == 0)
961 goto pcie_strap_init;
962
963 if (first_boot != 0x55555555) {
964 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
965 netxen_pinit_from_rom(adapter);
966 msleep(1);
967 }
968
969 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
970 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
971 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
972
973 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
974 netxen_set_port_mode(adapter);
975
976 err = netxen_load_firmware(adapter);
977 if (err)
978 goto err_out;
979
980 netxen_release_firmware(adapter);
981
982 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
983
984
985 val = 0x7654;
986 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
987 val |= 0x0f000000;
988 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
989
990 }
991
992 err = netxen_init_dummy_dma(adapter);
993 if (err)
994 goto err_out;
995
996
997
998
999 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
1000 | ((_NETXEN_NIC_LINUX_MINOR << 8))
1001 | (_NETXEN_NIC_LINUX_SUBVERSION);
1002 NXWR32(adapter, CRB_DRIVER_VERSION, val);
1003
1004pcie_strap_init:
1005 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1006 netxen_pcie_strap_init(adapter);
1007
1008wait_init:
1009
1010 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
1011 if (err) {
1012 netxen_free_dummy_dma(adapter);
1013 goto err_out;
1014 }
1015
1016 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
1017
1018 nx_update_dma_mask(adapter);
1019
1020 netxen_check_options(adapter);
1021
1022 adapter->need_fw_reset = 0;
1023
1024
1025
1026err_out:
1027 netxen_release_firmware(adapter);
1028 return err;
1029}
1030
1031static int
1032netxen_nic_request_irq(struct netxen_adapter *adapter)
1033{
1034 irq_handler_t handler;
1035 struct nx_host_sds_ring *sds_ring;
1036 int err, ring;
1037
1038 unsigned long flags = 0;
1039 struct net_device *netdev = adapter->netdev;
1040 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1041
1042 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
1043 handler = netxen_msix_intr;
1044 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
1045 handler = netxen_msi_intr;
1046 else {
1047 flags |= IRQF_SHARED;
1048 handler = netxen_intr;
1049 }
1050 adapter->irq = netdev->irq;
1051
1052 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1053 sds_ring = &recv_ctx->sds_rings[ring];
1054 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1055 err = request_irq(sds_ring->irq, handler,
1056 flags, sds_ring->name, sds_ring);
1057 if (err)
1058 return err;
1059 }
1060
1061 return 0;
1062}
1063
1064static void
1065netxen_nic_free_irq(struct netxen_adapter *adapter)
1066{
1067 int ring;
1068 struct nx_host_sds_ring *sds_ring;
1069
1070 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1071
1072 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1073 sds_ring = &recv_ctx->sds_rings[ring];
1074 free_irq(sds_ring->irq, sds_ring);
1075 }
1076}
1077
1078static void
1079netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
1080{
1081 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
1082 adapter->coal.normal.data.rx_time_us =
1083 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
1084 adapter->coal.normal.data.rx_packets =
1085 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
1086 adapter->coal.normal.data.tx_time_us =
1087 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
1088 adapter->coal.normal.data.tx_packets =
1089 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
1090}
1091
1092
1093static int
1094__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1095{
1096 int err;
1097
1098 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1099 return -EIO;
1100
1101 err = adapter->init_port(adapter, adapter->physical_port);
1102 if (err) {
1103 printk(KERN_ERR "%s: Failed to initialize port %d\n",
1104 netxen_nic_driver_name, adapter->portnum);
1105 return err;
1106 }
1107 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1108 adapter->macaddr_set(adapter, adapter->mac_addr);
1109
1110 adapter->set_multi(netdev);
1111 adapter->set_mtu(adapter, netdev->mtu);
1112
1113 adapter->ahw.linkup = 0;
1114
1115 if (adapter->max_sds_rings > 1)
1116 netxen_config_rss(adapter, 1);
1117
1118 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1119 netxen_config_intr_coalesce(adapter);
1120
1121 if (netdev->features & NETIF_F_LRO)
1122 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
1123
1124 netxen_napi_enable(adapter);
1125
1126 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1127 netxen_linkevent_request(adapter, 1);
1128 else
1129 netxen_nic_set_link_parameters(adapter);
1130
1131 set_bit(__NX_DEV_UP, &adapter->state);
1132 return 0;
1133}
1134
1135
1136
1137static inline int
1138netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1139{
1140 int err = 0;
1141
1142 rtnl_lock();
1143 if (netif_running(netdev))
1144 err = __netxen_nic_up(adapter, netdev);
1145 rtnl_unlock();
1146
1147 return err;
1148}
1149
1150
1151static void
1152__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1153{
1154 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1155 return;
1156
1157 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1158 return;
1159
1160 smp_mb();
1161 netif_carrier_off(netdev);
1162 netif_tx_disable(netdev);
1163
1164 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1165 netxen_linkevent_request(adapter, 0);
1166
1167 if (adapter->stop_port)
1168 adapter->stop_port(adapter);
1169
1170 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1171 netxen_p3_free_mac_list(adapter);
1172
1173 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1174
1175 netxen_napi_disable(adapter);
1176
1177 netxen_release_tx_buffers(adapter);
1178}
1179
1180
1181
1182static inline void
1183netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1184{
1185 rtnl_lock();
1186 if (netif_running(netdev))
1187 __netxen_nic_down(adapter, netdev);
1188 rtnl_unlock();
1189
1190}
1191
1192static int
1193netxen_nic_attach(struct netxen_adapter *adapter)
1194{
1195 struct net_device *netdev = adapter->netdev;
1196 struct pci_dev *pdev = adapter->pdev;
1197 int err, ring;
1198 struct nx_host_rds_ring *rds_ring;
1199 struct nx_host_tx_ring *tx_ring;
1200 u32 capab2;
1201
1202 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1203 return 0;
1204
1205 err = netxen_init_firmware(adapter);
1206 if (err)
1207 return err;
1208
1209 adapter->flags &= ~NETXEN_FW_MSS_CAP;
1210 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) {
1211 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2);
1212 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1213 adapter->flags |= NETXEN_FW_MSS_CAP;
1214 }
1215
1216 err = netxen_napi_add(adapter, netdev);
1217 if (err)
1218 return err;
1219
1220 err = netxen_alloc_sw_resources(adapter);
1221 if (err) {
1222 printk(KERN_ERR "%s: Error in setting sw resources\n",
1223 netdev->name);
1224 return err;
1225 }
1226
1227 err = netxen_alloc_hw_resources(adapter);
1228 if (err) {
1229 printk(KERN_ERR "%s: Error in setting hw resources\n",
1230 netdev->name);
1231 goto err_out_free_sw;
1232 }
1233
1234 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1235 tx_ring = adapter->tx_ring;
1236 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1237 crb_cmd_producer[adapter->portnum]);
1238 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1239 crb_cmd_consumer[adapter->portnum]);
1240
1241 tx_ring->producer = 0;
1242 tx_ring->sw_consumer = 0;
1243
1244 netxen_nic_update_cmd_producer(adapter, tx_ring);
1245 netxen_nic_update_cmd_consumer(adapter, tx_ring);
1246 }
1247
1248 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1249 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1250 netxen_post_rx_buffers(adapter, ring, rds_ring);
1251 }
1252
1253 err = netxen_nic_request_irq(adapter);
1254 if (err) {
1255 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1256 netdev->name);
1257 goto err_out_free_rxbuf;
1258 }
1259
1260 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1261 netxen_nic_init_coalesce_defaults(adapter);
1262
1263 netxen_create_sysfs_entries(adapter);
1264
1265 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1266 return 0;
1267
1268err_out_free_rxbuf:
1269 netxen_release_rx_buffers(adapter);
1270 netxen_free_hw_resources(adapter);
1271err_out_free_sw:
1272 netxen_free_sw_resources(adapter);
1273 return err;
1274}
1275
1276static void
1277netxen_nic_detach(struct netxen_adapter *adapter)
1278{
1279 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1280 return;
1281
1282 netxen_remove_sysfs_entries(adapter);
1283
1284 netxen_free_hw_resources(adapter);
1285 netxen_release_rx_buffers(adapter);
1286 netxen_nic_free_irq(adapter);
1287 netxen_napi_del(adapter);
1288 netxen_free_sw_resources(adapter);
1289
1290 adapter->is_up = 0;
1291}
1292
1293int
1294netxen_nic_reset_context(struct netxen_adapter *adapter)
1295{
1296 int err = 0;
1297 struct net_device *netdev = adapter->netdev;
1298
1299 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1300 return -EBUSY;
1301
1302 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1303
1304 netif_device_detach(netdev);
1305
1306 if (netif_running(netdev))
1307 __netxen_nic_down(adapter, netdev);
1308
1309 netxen_nic_detach(adapter);
1310
1311 if (netif_running(netdev)) {
1312 err = netxen_nic_attach(adapter);
1313 if (!err)
1314 err = __netxen_nic_up(adapter, netdev);
1315
1316 if (err)
1317 goto done;
1318 }
1319
1320 netif_device_attach(netdev);
1321 }
1322
1323done:
1324 clear_bit(__NX_RESETTING, &adapter->state);
1325 return err;
1326}
1327
1328static int
1329netxen_setup_netdev(struct netxen_adapter *adapter,
1330 struct net_device *netdev)
1331{
1332 int err = 0;
1333 struct pci_dev *pdev = adapter->pdev;
1334
1335 adapter->mc_enabled = 0;
1336 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1337 adapter->max_mc_count = 38;
1338 else
1339 adapter->max_mc_count = 16;
1340
1341 netdev->netdev_ops = &netxen_netdev_ops;
1342 netdev->watchdog_timeo = 5*HZ;
1343
1344 netxen_nic_change_mtu(netdev, netdev->mtu);
1345
1346 netdev->ethtool_ops = &netxen_nic_ethtool_ops;
1347
1348 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
1349 NETIF_F_RXCSUM;
1350
1351 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1352 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1353
1354 netdev->vlan_features |= netdev->hw_features;
1355
1356 if (adapter->pci_using_dac) {
1357 netdev->features |= NETIF_F_HIGHDMA;
1358 netdev->vlan_features |= NETIF_F_HIGHDMA;
1359 }
1360
1361 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1362 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
1363
1364 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1365 netdev->hw_features |= NETIF_F_LRO;
1366
1367 netdev->features |= netdev->hw_features;
1368
1369 netdev->irq = adapter->msix_entries[0].vector;
1370
1371 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1372
1373 if (netxen_read_mac_addr(adapter))
1374 dev_warn(&pdev->dev, "failed to read mac addr\n");
1375
1376 netif_carrier_off(netdev);
1377
1378 err = register_netdev(netdev);
1379 if (err) {
1380 dev_err(&pdev->dev, "failed to register net device\n");
1381 return err;
1382 }
1383
1384 return 0;
1385}
1386
1387#define NETXEN_ULA_ADAPTER_KEY (0xdaddad01)
1388#define NETXEN_NON_ULA_ADAPTER_KEY (0xdaddad00)
1389
1390static void netxen_read_ula_info(struct netxen_adapter *adapter)
1391{
1392 u32 temp;
1393
1394
1395 if (adapter->portnum != 0)
1396 return;
1397
1398 temp = NXRD32(adapter, NETXEN_ULA_KEY);
1399 switch (temp) {
1400 case NETXEN_ULA_ADAPTER_KEY:
1401 dev_info(&adapter->pdev->dev, "ULA adapter");
1402 break;
1403 case NETXEN_NON_ULA_ADAPTER_KEY:
1404 dev_info(&adapter->pdev->dev, "non ULA adapter");
1405 break;
1406 default:
1407 break;
1408 }
1409
1410 return;
1411}
1412
1413#ifdef CONFIG_PCIEAER
1414static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1415{
1416 struct pci_dev *pdev = adapter->pdev;
1417 struct pci_dev *root = pdev->bus->self;
1418 u32 aer_pos;
1419
1420
1421 if (!root)
1422 return;
1423
1424 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1425 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1426 return;
1427
1428 if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT)
1429 return;
1430
1431 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1432 if (!aer_pos)
1433 return;
1434
1435 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1436}
1437#endif
1438
1439static int
1440netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1441{
1442 struct net_device *netdev = NULL;
1443 struct netxen_adapter *adapter = NULL;
1444 int i = 0, err;
1445 int pci_func_id = PCI_FUNC(pdev->devfn);
1446 uint8_t revision_id;
1447 u32 val;
1448
1449 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1450 pr_warn("%s: chip revisions between 0x%x-0x%x will not be enabled\n",
1451 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
1452 return -ENODEV;
1453 }
1454
1455 if ((err = pci_enable_device(pdev)))
1456 return err;
1457
1458 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1459 err = -ENODEV;
1460 goto err_out_disable_pdev;
1461 }
1462
1463 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1464 goto err_out_disable_pdev;
1465
1466 if (NX_IS_REVISION_P3(pdev->revision))
1467 pci_enable_pcie_error_reporting(pdev);
1468
1469 pci_set_master(pdev);
1470
1471 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1472 if(!netdev) {
1473 err = -ENOMEM;
1474 goto err_out_free_res;
1475 }
1476
1477 SET_NETDEV_DEV(netdev, &pdev->dev);
1478
1479 adapter = netdev_priv(netdev);
1480 adapter->netdev = netdev;
1481 adapter->pdev = pdev;
1482 adapter->ahw.pci_func = pci_func_id;
1483
1484 revision_id = pdev->revision;
1485 adapter->ahw.revision_id = revision_id;
1486
1487 rwlock_init(&adapter->ahw.crb_lock);
1488 spin_lock_init(&adapter->ahw.mem_lock);
1489
1490 spin_lock_init(&adapter->tx_clean_lock);
1491 INIT_LIST_HEAD(&adapter->mac_list);
1492 INIT_LIST_HEAD(&adapter->ip_list);
1493
1494 err = netxen_setup_pci_map(adapter);
1495 if (err)
1496 goto err_out_free_netdev;
1497
1498
1499 adapter->portnum = pci_func_id;
1500
1501 err = netxen_nic_get_board_info(adapter);
1502 if (err) {
1503 dev_err(&pdev->dev, "Error getting board config info.\n");
1504 goto err_out_iounmap;
1505 }
1506
1507#ifdef CONFIG_PCIEAER
1508 netxen_mask_aer_correctable(adapter);
1509#endif
1510
1511
1512 switch (adapter->ahw.board_type) {
1513 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1514 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1515 if (pci_func_id >= 2)
1516 adapter->portnum = pci_func_id - 2;
1517 break;
1518 default:
1519 break;
1520 }
1521
1522 err = netxen_check_flash_fw_compatibility(adapter);
1523 if (err)
1524 goto err_out_iounmap;
1525
1526 if (adapter->portnum == 0) {
1527 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1528 if (val != 0xffffffff && val != 0) {
1529 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1530 adapter->need_fw_reset = 1;
1531 }
1532 }
1533
1534 err = netxen_start_firmware(adapter);
1535 if (err)
1536 goto err_out_decr_ref;
1537
1538
1539
1540
1541 adapter->physical_port = adapter->portnum;
1542 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1543 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1544 if (i != 0x55555555)
1545 adapter->physical_port = i;
1546 }
1547
1548
1549 netdev->min_mtu = 0;
1550 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1551 netdev->max_mtu = P3_MAX_MTU;
1552 else
1553 netdev->max_mtu = P2_MAX_MTU;
1554
1555 netxen_nic_clear_stats(adapter);
1556
1557 err = netxen_setup_intr(adapter);
1558
1559 if (err) {
1560 dev_err(&adapter->pdev->dev,
1561 "Failed to setup interrupts, error = %d\n", err);
1562 goto err_out_disable_msi;
1563 }
1564
1565 netxen_read_ula_info(adapter);
1566
1567 err = netxen_setup_netdev(adapter, netdev);
1568 if (err)
1569 goto err_out_disable_msi;
1570
1571 pci_set_drvdata(pdev, adapter);
1572
1573 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1574
1575 switch (adapter->ahw.port_type) {
1576 case NETXEN_NIC_GBE:
1577 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1578 adapter->netdev->name);
1579 break;
1580 case NETXEN_NIC_XGBE:
1581 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1582 adapter->netdev->name);
1583 break;
1584 }
1585
1586 netxen_create_diag_entries(adapter);
1587
1588 return 0;
1589
1590err_out_disable_msi:
1591 netxen_teardown_intr(adapter);
1592
1593 netxen_free_dummy_dma(adapter);
1594
1595err_out_decr_ref:
1596 nx_decr_dev_ref_cnt(adapter);
1597
1598err_out_iounmap:
1599 netxen_cleanup_pci_map(adapter);
1600
1601err_out_free_netdev:
1602 free_netdev(netdev);
1603
1604err_out_free_res:
1605 if (NX_IS_REVISION_P3(pdev->revision))
1606 pci_disable_pcie_error_reporting(pdev);
1607 pci_release_regions(pdev);
1608
1609err_out_disable_pdev:
1610 pci_disable_device(pdev);
1611 return err;
1612}
1613
1614static
1615void netxen_cleanup_minidump(struct netxen_adapter *adapter)
1616{
1617 kfree(adapter->mdump.md_template);
1618 adapter->mdump.md_template = NULL;
1619
1620 if (adapter->mdump.md_capture_buff) {
1621 vfree(adapter->mdump.md_capture_buff);
1622 adapter->mdump.md_capture_buff = NULL;
1623 }
1624}
1625
1626static void netxen_nic_remove(struct pci_dev *pdev)
1627{
1628 struct netxen_adapter *adapter;
1629 struct net_device *netdev;
1630
1631 adapter = pci_get_drvdata(pdev);
1632 if (adapter == NULL)
1633 return;
1634
1635 netdev = adapter->netdev;
1636
1637 netxen_cancel_fw_work(adapter);
1638
1639 unregister_netdev(netdev);
1640
1641 cancel_work_sync(&adapter->tx_timeout_task);
1642
1643 netxen_free_ip_list(adapter, false);
1644 netxen_nic_detach(adapter);
1645
1646 nx_decr_dev_ref_cnt(adapter);
1647
1648 if (adapter->portnum == 0)
1649 netxen_free_dummy_dma(adapter);
1650
1651 clear_bit(__NX_RESETTING, &adapter->state);
1652
1653 netxen_teardown_intr(adapter);
1654 netxen_set_interrupt_mode(adapter, 0);
1655 netxen_remove_diag_entries(adapter);
1656
1657 netxen_cleanup_pci_map(adapter);
1658
1659 netxen_release_firmware(adapter);
1660
1661 if (NX_IS_REVISION_P3(pdev->revision)) {
1662 netxen_cleanup_minidump(adapter);
1663 pci_disable_pcie_error_reporting(pdev);
1664 }
1665
1666 pci_release_regions(pdev);
1667 pci_disable_device(pdev);
1668
1669 free_netdev(netdev);
1670}
1671
1672static void netxen_nic_detach_func(struct netxen_adapter *adapter)
1673{
1674 struct net_device *netdev = adapter->netdev;
1675
1676 netif_device_detach(netdev);
1677
1678 netxen_cancel_fw_work(adapter);
1679
1680 if (netif_running(netdev))
1681 netxen_nic_down(adapter, netdev);
1682
1683 cancel_work_sync(&adapter->tx_timeout_task);
1684
1685 netxen_nic_detach(adapter);
1686
1687 if (adapter->portnum == 0)
1688 netxen_free_dummy_dma(adapter);
1689
1690 nx_decr_dev_ref_cnt(adapter);
1691
1692 clear_bit(__NX_RESETTING, &adapter->state);
1693}
1694
1695static int netxen_nic_attach_late_func(struct pci_dev *pdev)
1696{
1697 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1698 struct net_device *netdev = adapter->netdev;
1699 int err;
1700
1701 pci_set_master(pdev);
1702
1703 adapter->ahw.crb_win = -1;
1704 adapter->ahw.ocm_win = -1;
1705
1706 err = netxen_start_firmware(adapter);
1707 if (err) {
1708 dev_err(&pdev->dev, "failed to start firmware\n");
1709 return err;
1710 }
1711
1712 if (netif_running(netdev)) {
1713 err = netxen_nic_attach(adapter);
1714 if (err)
1715 goto err_out;
1716
1717 err = netxen_nic_up(adapter, netdev);
1718 if (err)
1719 goto err_out_detach;
1720
1721 netxen_restore_indev_addr(netdev, NETDEV_UP);
1722 }
1723
1724 netif_device_attach(netdev);
1725 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1726 return 0;
1727
1728err_out_detach:
1729 netxen_nic_detach(adapter);
1730err_out:
1731 nx_decr_dev_ref_cnt(adapter);
1732 return err;
1733}
1734
1735static int netxen_nic_attach_func(struct pci_dev *pdev)
1736{
1737 int err;
1738
1739 err = pci_enable_device(pdev);
1740 if (err)
1741 return err;
1742
1743 pci_set_power_state(pdev, PCI_D0);
1744 pci_restore_state(pdev);
1745
1746 return netxen_nic_attach_late_func(pdev);
1747}
1748
1749static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1750 pci_channel_state_t state)
1751{
1752 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1753
1754 if (state == pci_channel_io_perm_failure)
1755 return PCI_ERS_RESULT_DISCONNECT;
1756
1757 if (nx_dev_request_aer(adapter))
1758 return PCI_ERS_RESULT_RECOVERED;
1759
1760 netxen_nic_detach_func(adapter);
1761
1762 pci_disable_device(pdev);
1763
1764 return PCI_ERS_RESULT_NEED_RESET;
1765}
1766
1767static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1768{
1769 int err = 0;
1770
1771 err = netxen_nic_attach_func(pdev);
1772
1773 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1774}
1775
1776static void netxen_nic_shutdown(struct pci_dev *pdev)
1777{
1778 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1779
1780 netxen_nic_detach_func(adapter);
1781
1782 if (pci_save_state(pdev))
1783 return;
1784
1785 if (netxen_nic_wol_supported(adapter)) {
1786 pci_enable_wake(pdev, PCI_D3cold, 1);
1787 pci_enable_wake(pdev, PCI_D3hot, 1);
1788 }
1789
1790 pci_disable_device(pdev);
1791}
1792
1793static int __maybe_unused
1794netxen_nic_suspend(struct device *dev_d)
1795{
1796 struct netxen_adapter *adapter = dev_get_drvdata(dev_d);
1797
1798 netxen_nic_detach_func(adapter);
1799
1800 if (netxen_nic_wol_supported(adapter))
1801 device_wakeup_enable(dev_d);
1802
1803 return 0;
1804}
1805
1806static int __maybe_unused
1807netxen_nic_resume(struct device *dev_d)
1808{
1809 return netxen_nic_attach_late_func(to_pci_dev(dev_d));
1810}
1811
1812static int netxen_nic_open(struct net_device *netdev)
1813{
1814 struct netxen_adapter *adapter = netdev_priv(netdev);
1815 int err = 0;
1816
1817 if (adapter->driver_mismatch)
1818 return -EIO;
1819
1820 err = netxen_nic_attach(adapter);
1821 if (err)
1822 return err;
1823
1824 err = __netxen_nic_up(adapter, netdev);
1825 if (err)
1826 goto err_out;
1827
1828 netif_start_queue(netdev);
1829
1830 return 0;
1831
1832err_out:
1833 netxen_nic_detach(adapter);
1834 return err;
1835}
1836
1837
1838
1839
1840static int netxen_nic_close(struct net_device *netdev)
1841{
1842 struct netxen_adapter *adapter = netdev_priv(netdev);
1843
1844 __netxen_nic_down(adapter, netdev);
1845 return 0;
1846}
1847
1848static void
1849netxen_tso_check(struct net_device *netdev,
1850 struct nx_host_tx_ring *tx_ring,
1851 struct cmd_desc_type0 *first_desc,
1852 struct sk_buff *skb)
1853{
1854 u8 opcode = TX_ETHER_PKT;
1855 __be16 protocol = skb->protocol;
1856 u16 flags = 0, vid = 0;
1857 u32 producer;
1858 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1859 struct cmd_desc_type0 *hwdesc;
1860 struct vlan_ethhdr *vh;
1861
1862 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1863
1864 vh = (struct vlan_ethhdr *)skb->data;
1865 protocol = vh->h_vlan_encapsulated_proto;
1866 flags = FLAGS_VLAN_TAGGED;
1867
1868 } else if (skb_vlan_tag_present(skb)) {
1869 flags = FLAGS_VLAN_OOB;
1870 vid = skb_vlan_tag_get(skb);
1871 netxen_set_tx_vlan_tci(first_desc, vid);
1872 vlan_oob = 1;
1873 }
1874
1875 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1876 skb_shinfo(skb)->gso_size > 0) {
1877
1878 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1879
1880 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1881 first_desc->total_hdr_length = hdr_len;
1882 if (vlan_oob) {
1883 first_desc->total_hdr_length += VLAN_HLEN;
1884 first_desc->tcp_hdr_offset = VLAN_HLEN;
1885 first_desc->ip_hdr_offset = VLAN_HLEN;
1886
1887 flags |= FLAGS_VLAN_TAGGED;
1888 }
1889
1890 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1891 TX_TCP_LSO6 : TX_TCP_LSO;
1892 tso = 1;
1893
1894 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1895 u8 l4proto;
1896
1897 if (protocol == cpu_to_be16(ETH_P_IP)) {
1898 l4proto = ip_hdr(skb)->protocol;
1899
1900 if (l4proto == IPPROTO_TCP)
1901 opcode = TX_TCP_PKT;
1902 else if(l4proto == IPPROTO_UDP)
1903 opcode = TX_UDP_PKT;
1904 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1905 l4proto = ipv6_hdr(skb)->nexthdr;
1906
1907 if (l4proto == IPPROTO_TCP)
1908 opcode = TX_TCPV6_PKT;
1909 else if(l4proto == IPPROTO_UDP)
1910 opcode = TX_UDPV6_PKT;
1911 }
1912 }
1913
1914 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1915 first_desc->ip_hdr_offset += skb_network_offset(skb);
1916 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1917
1918 if (!tso)
1919 return;
1920
1921
1922
1923
1924 producer = tx_ring->producer;
1925 copied = 0;
1926 offset = 2;
1927
1928 if (vlan_oob) {
1929
1930
1931 hwdesc = &tx_ring->desc_head[producer];
1932 tx_ring->cmd_buf_arr[producer].skb = NULL;
1933
1934 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1935 hdr_len + VLAN_HLEN);
1936
1937 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1938 skb_copy_from_linear_data(skb, vh, 12);
1939 vh->h_vlan_proto = htons(ETH_P_8021Q);
1940 vh->h_vlan_TCI = htons(vid);
1941 skb_copy_from_linear_data_offset(skb, 12,
1942 (char *)vh + 16, copy_len - 16);
1943
1944 copied = copy_len - VLAN_HLEN;
1945 offset = 0;
1946
1947 producer = get_next_index(producer, tx_ring->num_desc);
1948 }
1949
1950 while (copied < hdr_len) {
1951
1952 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1953 (hdr_len - copied));
1954
1955 hwdesc = &tx_ring->desc_head[producer];
1956 tx_ring->cmd_buf_arr[producer].skb = NULL;
1957
1958 skb_copy_from_linear_data_offset(skb, copied,
1959 (char *)hwdesc + offset, copy_len);
1960
1961 copied += copy_len;
1962 offset = 0;
1963
1964 producer = get_next_index(producer, tx_ring->num_desc);
1965 }
1966
1967 tx_ring->producer = producer;
1968 barrier();
1969}
1970
1971static int
1972netxen_map_tx_skb(struct pci_dev *pdev,
1973 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1974{
1975 struct netxen_skb_frag *nf;
1976 skb_frag_t *frag;
1977 int i, nr_frags;
1978 dma_addr_t map;
1979
1980 nr_frags = skb_shinfo(skb)->nr_frags;
1981 nf = &pbuf->frag_array[0];
1982
1983 map = dma_map_single(&pdev->dev, skb->data, skb_headlen(skb),
1984 DMA_TO_DEVICE);
1985 if (dma_mapping_error(&pdev->dev, map))
1986 goto out_err;
1987
1988 nf->dma = map;
1989 nf->length = skb_headlen(skb);
1990
1991 for (i = 0; i < nr_frags; i++) {
1992 frag = &skb_shinfo(skb)->frags[i];
1993 nf = &pbuf->frag_array[i+1];
1994
1995 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
1996 DMA_TO_DEVICE);
1997 if (dma_mapping_error(&pdev->dev, map))
1998 goto unwind;
1999
2000 nf->dma = map;
2001 nf->length = skb_frag_size(frag);
2002 }
2003
2004 return 0;
2005
2006unwind:
2007 while (--i >= 0) {
2008 nf = &pbuf->frag_array[i+1];
2009 dma_unmap_page(&pdev->dev, nf->dma, nf->length, DMA_TO_DEVICE);
2010 nf->dma = 0ULL;
2011 }
2012
2013 nf = &pbuf->frag_array[0];
2014 dma_unmap_single(&pdev->dev, nf->dma, skb_headlen(skb), DMA_TO_DEVICE);
2015 nf->dma = 0ULL;
2016
2017out_err:
2018 return -ENOMEM;
2019}
2020
2021static inline void
2022netxen_clear_cmddesc(u64 *desc)
2023{
2024 desc[0] = 0ULL;
2025 desc[2] = 0ULL;
2026}
2027
2028static netdev_tx_t
2029netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2030{
2031 struct netxen_adapter *adapter = netdev_priv(netdev);
2032 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
2033 struct netxen_cmd_buffer *pbuf;
2034 struct netxen_skb_frag *buffrag;
2035 struct cmd_desc_type0 *hwdesc, *first_desc;
2036 struct pci_dev *pdev;
2037 int i, k;
2038 int delta = 0;
2039 skb_frag_t *frag;
2040
2041 u32 producer;
2042 int frag_count;
2043 u32 num_txd = tx_ring->num_desc;
2044
2045 frag_count = skb_shinfo(skb)->nr_frags + 1;
2046
2047
2048
2049
2050 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
2051
2052 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
2053 frag = &skb_shinfo(skb)->frags[i];
2054 delta += skb_frag_size(frag);
2055 }
2056
2057 if (!__pskb_pull_tail(skb, delta))
2058 goto drop_packet;
2059
2060 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2061 }
2062
2063 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2064 netif_stop_queue(netdev);
2065 smp_mb();
2066 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
2067 netif_start_queue(netdev);
2068 else
2069 return NETDEV_TX_BUSY;
2070 }
2071
2072 producer = tx_ring->producer;
2073 pbuf = &tx_ring->cmd_buf_arr[producer];
2074
2075 pdev = adapter->pdev;
2076
2077 if (netxen_map_tx_skb(pdev, skb, pbuf))
2078 goto drop_packet;
2079
2080 pbuf->skb = skb;
2081 pbuf->frag_count = frag_count;
2082
2083 first_desc = hwdesc = &tx_ring->desc_head[producer];
2084 netxen_clear_cmddesc((u64 *)hwdesc);
2085
2086 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
2087 netxen_set_tx_port(first_desc, adapter->portnum);
2088
2089 for (i = 0; i < frag_count; i++) {
2090
2091 k = i % 4;
2092
2093 if ((k == 0) && (i > 0)) {
2094
2095 producer = get_next_index(producer, num_txd);
2096 hwdesc = &tx_ring->desc_head[producer];
2097 netxen_clear_cmddesc((u64 *)hwdesc);
2098 tx_ring->cmd_buf_arr[producer].skb = NULL;
2099 }
2100
2101 buffrag = &pbuf->frag_array[i];
2102
2103 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2104 switch (k) {
2105 case 0:
2106 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2107 break;
2108 case 1:
2109 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2110 break;
2111 case 2:
2112 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2113 break;
2114 case 3:
2115 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2116 break;
2117 }
2118 }
2119
2120 tx_ring->producer = get_next_index(producer, num_txd);
2121
2122 netxen_tso_check(netdev, tx_ring, first_desc, skb);
2123
2124 adapter->stats.txbytes += skb->len;
2125 adapter->stats.xmitcalled++;
2126
2127 netxen_nic_update_cmd_producer(adapter, tx_ring);
2128
2129 return NETDEV_TX_OK;
2130
2131drop_packet:
2132 adapter->stats.txdropped++;
2133 dev_kfree_skb_any(skb);
2134 return NETDEV_TX_OK;
2135}
2136
2137static int netxen_nic_check_temp(struct netxen_adapter *adapter)
2138{
2139 struct net_device *netdev = adapter->netdev;
2140 uint32_t temp, temp_state, temp_val;
2141 int rv = 0;
2142
2143 temp = NXRD32(adapter, CRB_TEMP_STATE);
2144
2145 temp_state = nx_get_temp_state(temp);
2146 temp_val = nx_get_temp_val(temp);
2147
2148 if (temp_state == NX_TEMP_PANIC) {
2149 printk(KERN_ALERT
2150 "%s: Device temperature %d degrees C exceeds"
2151 " maximum allowed. Hardware has been shut down.\n",
2152 netdev->name, temp_val);
2153 rv = 1;
2154 } else if (temp_state == NX_TEMP_WARN) {
2155 if (adapter->temp == NX_TEMP_NORMAL) {
2156 printk(KERN_ALERT
2157 "%s: Device temperature %d degrees C "
2158 "exceeds operating range."
2159 " Immediate action needed.\n",
2160 netdev->name, temp_val);
2161 }
2162 } else {
2163 if (adapter->temp == NX_TEMP_WARN) {
2164 printk(KERN_INFO
2165 "%s: Device temperature is now %d degrees C"
2166 " in normal range.\n", netdev->name,
2167 temp_val);
2168 }
2169 }
2170 adapter->temp = temp_state;
2171 return rv;
2172}
2173
2174void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
2175{
2176 struct net_device *netdev = adapter->netdev;
2177
2178 if (adapter->ahw.linkup && !linkup) {
2179 printk(KERN_INFO "%s: %s NIC Link is down\n",
2180 netxen_nic_driver_name, netdev->name);
2181 adapter->ahw.linkup = 0;
2182 if (netif_running(netdev)) {
2183 netif_carrier_off(netdev);
2184 netif_stop_queue(netdev);
2185 }
2186 adapter->link_changed = !adapter->has_link_events;
2187 } else if (!adapter->ahw.linkup && linkup) {
2188 printk(KERN_INFO "%s: %s NIC Link is up\n",
2189 netxen_nic_driver_name, netdev->name);
2190 adapter->ahw.linkup = 1;
2191 if (netif_running(netdev)) {
2192 netif_carrier_on(netdev);
2193 netif_wake_queue(netdev);
2194 }
2195 adapter->link_changed = !adapter->has_link_events;
2196 }
2197}
2198
2199static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2200{
2201 u32 val, port, linkup;
2202
2203 port = adapter->physical_port;
2204
2205 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2206 val = NXRD32(adapter, CRB_XG_STATE_P3);
2207 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2208 linkup = (val == XG_LINK_UP_P3);
2209 } else {
2210 val = NXRD32(adapter, CRB_XG_STATE);
2211 val = (val >> port*8) & 0xff;
2212 linkup = (val == XG_LINK_UP);
2213 }
2214
2215 netxen_advert_link_change(adapter, linkup);
2216}
2217
2218static void netxen_tx_timeout(struct net_device *netdev, unsigned int txqueue)
2219{
2220 struct netxen_adapter *adapter = netdev_priv(netdev);
2221
2222 if (test_bit(__NX_RESETTING, &adapter->state))
2223 return;
2224
2225 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2226 schedule_work(&adapter->tx_timeout_task);
2227}
2228
2229static void netxen_tx_timeout_task(struct work_struct *work)
2230{
2231 struct netxen_adapter *adapter =
2232 container_of(work, struct netxen_adapter, tx_timeout_task);
2233
2234 if (!netif_running(adapter->netdev))
2235 return;
2236
2237 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
2238 return;
2239
2240 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2241 goto request_reset;
2242
2243 rtnl_lock();
2244 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2245
2246 netxen_napi_disable(adapter);
2247
2248 netxen_napi_enable(adapter);
2249
2250 netif_wake_queue(adapter->netdev);
2251
2252 clear_bit(__NX_RESETTING, &adapter->state);
2253 } else {
2254 clear_bit(__NX_RESETTING, &adapter->state);
2255 if (netxen_nic_reset_context(adapter)) {
2256 rtnl_unlock();
2257 goto request_reset;
2258 }
2259 }
2260 netif_trans_update(adapter->netdev);
2261 rtnl_unlock();
2262 return;
2263
2264request_reset:
2265 adapter->need_fw_reset = 1;
2266 clear_bit(__NX_RESETTING, &adapter->state);
2267}
2268
2269static void netxen_nic_get_stats(struct net_device *netdev,
2270 struct rtnl_link_stats64 *stats)
2271{
2272 struct netxen_adapter *adapter = netdev_priv(netdev);
2273
2274 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2275 stats->tx_packets = adapter->stats.xmitfinished;
2276 stats->rx_bytes = adapter->stats.rxbytes;
2277 stats->tx_bytes = adapter->stats.txbytes;
2278 stats->rx_dropped = adapter->stats.rxdropped;
2279 stats->tx_dropped = adapter->stats.txdropped;
2280}
2281
2282static irqreturn_t netxen_intr(int irq, void *data)
2283{
2284 struct nx_host_sds_ring *sds_ring = data;
2285 struct netxen_adapter *adapter = sds_ring->adapter;
2286 u32 status = 0;
2287
2288 status = readl(adapter->isr_int_vec);
2289
2290 if (!(status & adapter->int_vec_bit))
2291 return IRQ_NONE;
2292
2293 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2294
2295 status = readl(adapter->crb_int_state_reg);
2296 if (!ISR_LEGACY_INT_TRIGGERED(status))
2297 return IRQ_NONE;
2298
2299 } else {
2300 unsigned long our_int = 0;
2301
2302 our_int = readl(adapter->crb_int_state_reg);
2303
2304
2305 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2306 return IRQ_NONE;
2307
2308
2309 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2310
2311
2312 netxen_nic_disable_int(sds_ring);
2313 }
2314
2315 writel(0xffffffff, adapter->tgt_status_reg);
2316
2317 readl(adapter->isr_int_vec);
2318 readl(adapter->isr_int_vec);
2319
2320 napi_schedule(&sds_ring->napi);
2321
2322 return IRQ_HANDLED;
2323}
2324
2325static irqreturn_t netxen_msi_intr(int irq, void *data)
2326{
2327 struct nx_host_sds_ring *sds_ring = data;
2328 struct netxen_adapter *adapter = sds_ring->adapter;
2329
2330
2331 writel(0xffffffff, adapter->tgt_status_reg);
2332
2333 napi_schedule(&sds_ring->napi);
2334 return IRQ_HANDLED;
2335}
2336
2337static irqreturn_t netxen_msix_intr(int irq, void *data)
2338{
2339 struct nx_host_sds_ring *sds_ring = data;
2340
2341 napi_schedule(&sds_ring->napi);
2342 return IRQ_HANDLED;
2343}
2344
2345static int netxen_nic_poll(struct napi_struct *napi, int budget)
2346{
2347 struct nx_host_sds_ring *sds_ring =
2348 container_of(napi, struct nx_host_sds_ring, napi);
2349
2350 struct netxen_adapter *adapter = sds_ring->adapter;
2351
2352 int tx_complete;
2353 int work_done;
2354
2355 tx_complete = netxen_process_cmd_ring(adapter);
2356
2357 work_done = netxen_process_rcv_ring(sds_ring, budget);
2358
2359 if (!tx_complete)
2360 work_done = budget;
2361
2362 if (work_done < budget) {
2363 napi_complete_done(&sds_ring->napi, work_done);
2364 if (test_bit(__NX_DEV_UP, &adapter->state))
2365 netxen_nic_enable_int(sds_ring);
2366 }
2367
2368 return work_done;
2369}
2370
2371static int
2372nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2373{
2374 int count;
2375 if (netxen_api_lock(adapter))
2376 return -EIO;
2377
2378 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2379
2380 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2381
2382 netxen_api_unlock(adapter);
2383 return count;
2384}
2385
2386static int
2387nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2388{
2389 int count, state;
2390 if (netxen_api_lock(adapter))
2391 return -EIO;
2392
2393 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2394 WARN_ON(count == 0);
2395
2396 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2397 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2398
2399 if (count == 0 && state != NX_DEV_FAILED)
2400 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2401
2402 netxen_api_unlock(adapter);
2403 return count;
2404}
2405
2406static int
2407nx_dev_request_aer(struct netxen_adapter *adapter)
2408{
2409 u32 state;
2410 int ret = -EINVAL;
2411
2412 if (netxen_api_lock(adapter))
2413 return ret;
2414
2415 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2416
2417 if (state == NX_DEV_NEED_AER)
2418 ret = 0;
2419 else if (state == NX_DEV_READY) {
2420 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2421 ret = 0;
2422 }
2423
2424 netxen_api_unlock(adapter);
2425 return ret;
2426}
2427
2428int
2429nx_dev_request_reset(struct netxen_adapter *adapter)
2430{
2431 u32 state;
2432 int ret = -EINVAL;
2433
2434 if (netxen_api_lock(adapter))
2435 return ret;
2436
2437 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2438
2439 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED)
2440 ret = 0;
2441 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
2442 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2443 adapter->flags |= NETXEN_FW_RESET_OWNER;
2444 ret = 0;
2445 }
2446
2447 netxen_api_unlock(adapter);
2448
2449 return ret;
2450}
2451
2452static int
2453netxen_can_start_firmware(struct netxen_adapter *adapter)
2454{
2455 int count;
2456 int can_start = 0;
2457
2458 if (netxen_api_lock(adapter)) {
2459 nx_incr_dev_ref_cnt(adapter);
2460 return -1;
2461 }
2462
2463 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2464
2465 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2466 count = 0;
2467
2468 if (count == 0) {
2469 can_start = 1;
2470 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2471 }
2472
2473 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2474
2475 netxen_api_unlock(adapter);
2476
2477 return can_start;
2478}
2479
2480static void
2481netxen_schedule_work(struct netxen_adapter *adapter,
2482 work_func_t func, int delay)
2483{
2484 INIT_DELAYED_WORK(&adapter->fw_work, func);
2485 schedule_delayed_work(&adapter->fw_work, delay);
2486}
2487
2488static void
2489netxen_cancel_fw_work(struct netxen_adapter *adapter)
2490{
2491 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2492 msleep(10);
2493
2494 cancel_delayed_work_sync(&adapter->fw_work);
2495}
2496
2497static void
2498netxen_attach_work(struct work_struct *work)
2499{
2500 struct netxen_adapter *adapter = container_of(work,
2501 struct netxen_adapter, fw_work.work);
2502 struct net_device *netdev = adapter->netdev;
2503 int err = 0;
2504
2505 if (netif_running(netdev)) {
2506 err = netxen_nic_attach(adapter);
2507 if (err)
2508 goto done;
2509
2510 err = netxen_nic_up(adapter, netdev);
2511 if (err) {
2512 netxen_nic_detach(adapter);
2513 goto done;
2514 }
2515
2516 netxen_restore_indev_addr(netdev, NETDEV_UP);
2517 }
2518
2519 netif_device_attach(netdev);
2520
2521done:
2522 adapter->fw_fail_cnt = 0;
2523 clear_bit(__NX_RESETTING, &adapter->state);
2524 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2525}
2526
2527static void
2528netxen_fwinit_work(struct work_struct *work)
2529{
2530 struct netxen_adapter *adapter = container_of(work,
2531 struct netxen_adapter, fw_work.work);
2532 int dev_state;
2533 int count;
2534 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2535 if (adapter->flags & NETXEN_FW_RESET_OWNER) {
2536 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2537 WARN_ON(count == 0);
2538 if (count == 1) {
2539 if (adapter->mdump.md_enabled) {
2540 rtnl_lock();
2541 netxen_dump_fw(adapter);
2542 rtnl_unlock();
2543 }
2544 adapter->flags &= ~NETXEN_FW_RESET_OWNER;
2545 if (netxen_api_lock(adapter)) {
2546 clear_bit(__NX_RESETTING, &adapter->state);
2547 NXWR32(adapter, NX_CRB_DEV_STATE,
2548 NX_DEV_FAILED);
2549 return;
2550 }
2551 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2552 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2553 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2554 dev_state = NX_DEV_COLD;
2555 netxen_api_unlock(adapter);
2556 }
2557 }
2558
2559 switch (dev_state) {
2560 case NX_DEV_COLD:
2561 case NX_DEV_READY:
2562 if (!netxen_start_firmware(adapter)) {
2563 netxen_schedule_work(adapter, netxen_attach_work, 0);
2564 return;
2565 }
2566 break;
2567
2568 case NX_DEV_NEED_RESET:
2569 case NX_DEV_INITALIZING:
2570 netxen_schedule_work(adapter,
2571 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2572 return;
2573
2574 case NX_DEV_FAILED:
2575 default:
2576 nx_incr_dev_ref_cnt(adapter);
2577 break;
2578 }
2579
2580 if (netxen_api_lock(adapter)) {
2581 clear_bit(__NX_RESETTING, &adapter->state);
2582 return;
2583 }
2584 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED);
2585 netxen_api_unlock(adapter);
2586 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n",
2587 adapter->netdev->name);
2588
2589 clear_bit(__NX_RESETTING, &adapter->state);
2590}
2591
2592static void
2593netxen_detach_work(struct work_struct *work)
2594{
2595 struct netxen_adapter *adapter = container_of(work,
2596 struct netxen_adapter, fw_work.work);
2597 struct net_device *netdev = adapter->netdev;
2598 int ref_cnt = 0, delay;
2599 u32 status;
2600
2601 netif_device_detach(netdev);
2602
2603 netxen_nic_down(adapter, netdev);
2604
2605 rtnl_lock();
2606 netxen_nic_detach(adapter);
2607 rtnl_unlock();
2608
2609 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2610
2611 if (status & NX_RCODE_FATAL_ERROR)
2612 goto err_ret;
2613
2614 if (adapter->temp == NX_TEMP_PANIC)
2615 goto err_ret;
2616
2617 if (!(adapter->flags & NETXEN_FW_RESET_OWNER))
2618 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2619
2620 if (ref_cnt == -EIO)
2621 goto err_ret;
2622
2623 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2624
2625 adapter->fw_wait_cnt = 0;
2626 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2627
2628 return;
2629
2630err_ret:
2631 clear_bit(__NX_RESETTING, &adapter->state);
2632}
2633
2634static int
2635netxen_check_health(struct netxen_adapter *adapter)
2636{
2637 u32 state, heartbit;
2638 u32 peg_status;
2639 struct net_device *netdev = adapter->netdev;
2640
2641 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2642 if (state == NX_DEV_NEED_AER)
2643 return 0;
2644
2645 if (netxen_nic_check_temp(adapter))
2646 goto detach;
2647
2648 if (adapter->need_fw_reset) {
2649 if (nx_dev_request_reset(adapter))
2650 return 0;
2651 goto detach;
2652 }
2653
2654
2655
2656
2657
2658
2659 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) {
2660 adapter->need_fw_reset = 1;
2661 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2662 goto detach;
2663 }
2664
2665 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2666 return 0;
2667
2668 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2669 if (heartbit != adapter->heartbit) {
2670 adapter->heartbit = heartbit;
2671 adapter->fw_fail_cnt = 0;
2672 if (adapter->need_fw_reset)
2673 goto detach;
2674 return 0;
2675 }
2676
2677 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2678 return 0;
2679
2680 if (nx_dev_request_reset(adapter))
2681 return 0;
2682
2683 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2684
2685 dev_err(&netdev->dev, "firmware hang detected\n");
2686 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2687 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2688 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2689 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2690 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2691 "PEG_NET_4_PC: 0x%x\n",
2692 peg_status,
2693 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2),
2694 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c),
2695 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c),
2696 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c),
2697 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c),
2698 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c));
2699 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67)
2700 dev_err(&adapter->pdev->dev,
2701 "Firmware aborted with error code 0x00006700. "
2702 "Device is being reset.\n");
2703detach:
2704 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2705 !test_and_set_bit(__NX_RESETTING, &adapter->state))
2706 netxen_schedule_work(adapter, netxen_detach_work, 0);
2707 return 1;
2708}
2709
2710static void
2711netxen_fw_poll_work(struct work_struct *work)
2712{
2713 struct netxen_adapter *adapter = container_of(work,
2714 struct netxen_adapter, fw_work.work);
2715
2716 if (test_bit(__NX_RESETTING, &adapter->state))
2717 goto reschedule;
2718
2719 if (test_bit(__NX_DEV_UP, &adapter->state) &&
2720 !(adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)) {
2721 if (!adapter->has_link_events) {
2722
2723 netxen_nic_handle_phy_intr(adapter);
2724
2725 if (adapter->link_changed)
2726 netxen_nic_set_link_parameters(adapter);
2727 }
2728 }
2729
2730 if (netxen_check_health(adapter))
2731 return;
2732
2733reschedule:
2734 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2735}
2736
2737static ssize_t
2738netxen_store_bridged_mode(struct device *dev,
2739 struct device_attribute *attr, const char *buf, size_t len)
2740{
2741 struct net_device *net = to_net_dev(dev);
2742 struct netxen_adapter *adapter = netdev_priv(net);
2743 unsigned long new;
2744 int ret = -EINVAL;
2745
2746 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2747 goto err_out;
2748
2749 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2750 goto err_out;
2751
2752 if (kstrtoul(buf, 2, &new))
2753 goto err_out;
2754
2755 if (!netxen_config_bridged_mode(adapter, !!new))
2756 ret = len;
2757
2758err_out:
2759 return ret;
2760}
2761
2762static ssize_t
2763netxen_show_bridged_mode(struct device *dev,
2764 struct device_attribute *attr, char *buf)
2765{
2766 struct net_device *net = to_net_dev(dev);
2767 struct netxen_adapter *adapter;
2768 int bridged_mode = 0;
2769
2770 adapter = netdev_priv(net);
2771
2772 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2773 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2774
2775 return sprintf(buf, "%d\n", bridged_mode);
2776}
2777
2778static const struct device_attribute dev_attr_bridged_mode = {
2779 .attr = { .name = "bridged_mode", .mode = 0644 },
2780 .show = netxen_show_bridged_mode,
2781 .store = netxen_store_bridged_mode,
2782};
2783
2784static ssize_t
2785netxen_store_diag_mode(struct device *dev,
2786 struct device_attribute *attr, const char *buf, size_t len)
2787{
2788 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2789 unsigned long new;
2790
2791 if (kstrtoul(buf, 2, &new))
2792 return -EINVAL;
2793
2794 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2795 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2796
2797 return len;
2798}
2799
2800static ssize_t
2801netxen_show_diag_mode(struct device *dev,
2802 struct device_attribute *attr, char *buf)
2803{
2804 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2805
2806 return sprintf(buf, "%d\n",
2807 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2808}
2809
2810static const struct device_attribute dev_attr_diag_mode = {
2811 .attr = { .name = "diag_mode", .mode = 0644 },
2812 .show = netxen_show_diag_mode,
2813 .store = netxen_store_diag_mode,
2814};
2815
2816static int
2817netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2818 loff_t offset, size_t size)
2819{
2820 size_t crb_size = 4;
2821
2822 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2823 return -EIO;
2824
2825 if (offset < NETXEN_PCI_CRBSPACE) {
2826 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2827 return -EINVAL;
2828
2829 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2830 NETXEN_PCI_CAMQM_2M_END))
2831 crb_size = 8;
2832 else
2833 return -EINVAL;
2834 }
2835
2836 if ((size != crb_size) || (offset & (crb_size-1)))
2837 return -EINVAL;
2838
2839 return 0;
2840}
2841
2842static ssize_t
2843netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2844 struct bin_attribute *attr,
2845 char *buf, loff_t offset, size_t size)
2846{
2847 struct device *dev = kobj_to_dev(kobj);
2848 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2849 u32 data;
2850 u64 qmdata;
2851 int ret;
2852
2853 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2854 if (ret != 0)
2855 return ret;
2856
2857 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2858 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2859 NETXEN_PCI_CAMQM_2M_END)) {
2860 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2861 memcpy(buf, &qmdata, size);
2862 } else {
2863 data = NXRD32(adapter, offset);
2864 memcpy(buf, &data, size);
2865 }
2866
2867 return size;
2868}
2869
2870static ssize_t
2871netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2872 struct bin_attribute *attr,
2873 char *buf, loff_t offset, size_t size)
2874{
2875 struct device *dev = kobj_to_dev(kobj);
2876 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2877 u32 data;
2878 u64 qmdata;
2879 int ret;
2880
2881 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2882 if (ret != 0)
2883 return ret;
2884
2885 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2886 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2887 NETXEN_PCI_CAMQM_2M_END)) {
2888 memcpy(&qmdata, buf, size);
2889 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2890 } else {
2891 memcpy(&data, buf, size);
2892 NXWR32(adapter, offset, data);
2893 }
2894
2895 return size;
2896}
2897
2898static int
2899netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2900 loff_t offset, size_t size)
2901{
2902 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2903 return -EIO;
2904
2905 if ((size != 8) || (offset & 0x7))
2906 return -EIO;
2907
2908 return 0;
2909}
2910
2911static ssize_t
2912netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2913 struct bin_attribute *attr,
2914 char *buf, loff_t offset, size_t size)
2915{
2916 struct device *dev = kobj_to_dev(kobj);
2917 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2918 u64 data;
2919 int ret;
2920
2921 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2922 if (ret != 0)
2923 return ret;
2924
2925 if (adapter->pci_mem_read(adapter, offset, &data))
2926 return -EIO;
2927
2928 memcpy(buf, &data, size);
2929
2930 return size;
2931}
2932
2933static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
2934 struct bin_attribute *attr, char *buf,
2935 loff_t offset, size_t size)
2936{
2937 struct device *dev = kobj_to_dev(kobj);
2938 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2939 u64 data;
2940 int ret;
2941
2942 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2943 if (ret != 0)
2944 return ret;
2945
2946 memcpy(&data, buf, size);
2947
2948 if (adapter->pci_mem_write(adapter, offset, data))
2949 return -EIO;
2950
2951 return size;
2952}
2953
2954
2955static const struct bin_attribute bin_attr_crb = {
2956 .attr = { .name = "crb", .mode = 0644 },
2957 .size = 0,
2958 .read = netxen_sysfs_read_crb,
2959 .write = netxen_sysfs_write_crb,
2960};
2961
2962static const struct bin_attribute bin_attr_mem = {
2963 .attr = { .name = "mem", .mode = 0644 },
2964 .size = 0,
2965 .read = netxen_sysfs_read_mem,
2966 .write = netxen_sysfs_write_mem,
2967};
2968
2969static ssize_t
2970netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj,
2971 struct bin_attribute *attr,
2972 char *buf, loff_t offset, size_t size)
2973{
2974 struct device *dev = kobj_to_dev(kobj);
2975 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2976 struct net_device *netdev = adapter->netdev;
2977 struct netxen_dimm_cfg dimm;
2978 u8 dw, rows, cols, banks, ranks;
2979 u32 val;
2980
2981 if (size < attr->size) {
2982 netdev_err(netdev, "Invalid size\n");
2983 return -EINVAL;
2984 }
2985
2986 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg));
2987 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY);
2988
2989
2990 if (val & NETXEN_DIMM_VALID_FLAG) {
2991 netdev_err(netdev, "Invalid DIMM flag\n");
2992 dimm.presence = 0xff;
2993 goto out;
2994 }
2995
2996 rows = NETXEN_DIMM_NUMROWS(val);
2997 cols = NETXEN_DIMM_NUMCOLS(val);
2998 ranks = NETXEN_DIMM_NUMRANKS(val);
2999 banks = NETXEN_DIMM_NUMBANKS(val);
3000 dw = NETXEN_DIMM_DATAWIDTH(val);
3001
3002 dimm.presence = (val & NETXEN_DIMM_PRESENT);
3003
3004
3005 if (!dimm.presence) {
3006 netdev_err(netdev, "DIMM not present\n");
3007 goto out;
3008 }
3009
3010 dimm.dimm_type = NETXEN_DIMM_TYPE(val);
3011
3012 switch (dimm.dimm_type) {
3013 case NETXEN_DIMM_TYPE_RDIMM:
3014 case NETXEN_DIMM_TYPE_UDIMM:
3015 case NETXEN_DIMM_TYPE_SO_DIMM:
3016 case NETXEN_DIMM_TYPE_Micro_DIMM:
3017 case NETXEN_DIMM_TYPE_Mini_RDIMM:
3018 case NETXEN_DIMM_TYPE_Mini_UDIMM:
3019 break;
3020 default:
3021 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type);
3022 goto out;
3023 }
3024
3025 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM)
3026 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM;
3027 else
3028 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val);
3029
3030 if (val & NETXEN_DIMM_SIZE) {
3031 dimm.size = NETXEN_DIMM_STD_MEM_SIZE;
3032 goto out;
3033 }
3034
3035 if (!rows) {
3036 netdev_err(netdev, "Invalid no of rows %x\n", rows);
3037 goto out;
3038 }
3039
3040 if (!cols) {
3041 netdev_err(netdev, "Invalid no of columns %x\n", cols);
3042 goto out;
3043 }
3044
3045 if (!banks) {
3046 netdev_err(netdev, "Invalid no of banks %x\n", banks);
3047 goto out;
3048 }
3049
3050 ranks += 1;
3051
3052 switch (dw) {
3053 case 0x0:
3054 dw = 32;
3055 break;
3056 case 0x1:
3057 dw = 33;
3058 break;
3059 case 0x2:
3060 dw = 36;
3061 break;
3062 case 0x3:
3063 dw = 64;
3064 break;
3065 case 0x4:
3066 dw = 72;
3067 break;
3068 case 0x5:
3069 dw = 80;
3070 break;
3071 case 0x6:
3072 dw = 128;
3073 break;
3074 case 0x7:
3075 dw = 144;
3076 break;
3077 default:
3078 netdev_err(netdev, "Invalid data-width %x\n", dw);
3079 goto out;
3080 }
3081
3082 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8;
3083
3084 dimm.size = (dimm.size) / 0x100000;
3085out:
3086 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg));
3087 return sizeof(struct netxen_dimm_cfg);
3088
3089}
3090
3091static const struct bin_attribute bin_attr_dimm = {
3092 .attr = { .name = "dimm", .mode = 0644 },
3093 .size = sizeof(struct netxen_dimm_cfg),
3094 .read = netxen_sysfs_read_dimm,
3095};
3096
3097
3098static void
3099netxen_create_sysfs_entries(struct netxen_adapter *adapter)
3100{
3101 struct device *dev = &adapter->pdev->dev;
3102
3103 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
3104
3105 if (device_create_file(dev, &dev_attr_bridged_mode)) {
3106 dev_warn(dev,
3107 "failed to create bridged_mode sysfs entry\n");
3108 }
3109 }
3110}
3111
3112static void
3113netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
3114{
3115 struct device *dev = &adapter->pdev->dev;
3116
3117 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
3118 device_remove_file(dev, &dev_attr_bridged_mode);
3119}
3120
3121static void
3122netxen_create_diag_entries(struct netxen_adapter *adapter)
3123{
3124 struct pci_dev *pdev = adapter->pdev;
3125 struct device *dev;
3126
3127 dev = &pdev->dev;
3128 if (device_create_file(dev, &dev_attr_diag_mode))
3129 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3130 if (device_create_bin_file(dev, &bin_attr_crb))
3131 dev_info(dev, "failed to create crb sysfs entry\n");
3132 if (device_create_bin_file(dev, &bin_attr_mem))
3133 dev_info(dev, "failed to create mem sysfs entry\n");
3134 if (device_create_bin_file(dev, &bin_attr_dimm))
3135 dev_info(dev, "failed to create dimm sysfs entry\n");
3136}
3137
3138
3139static void
3140netxen_remove_diag_entries(struct netxen_adapter *adapter)
3141{
3142 struct pci_dev *pdev = adapter->pdev;
3143 struct device *dev = &pdev->dev;
3144
3145 device_remove_file(dev, &dev_attr_diag_mode);
3146 device_remove_bin_file(dev, &bin_attr_crb);
3147 device_remove_bin_file(dev, &bin_attr_mem);
3148 device_remove_bin_file(dev, &bin_attr_dimm);
3149}
3150
3151#ifdef CONFIG_INET
3152
3153#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
3154
3155static int
3156netxen_destip_supported(struct netxen_adapter *adapter)
3157{
3158 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
3159 return 0;
3160
3161 if (adapter->ahw.cut_through)
3162 return 0;
3163
3164 return 1;
3165}
3166
3167static void
3168netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
3169{
3170 struct nx_ip_list *cur, *tmp_cur;
3171
3172 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) {
3173 if (master) {
3174 if (cur->master) {
3175 netxen_config_ipaddr(adapter, cur->ip_addr,
3176 NX_IP_DOWN);
3177 list_del(&cur->list);
3178 kfree(cur);
3179 }
3180 } else {
3181 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
3182 list_del(&cur->list);
3183 kfree(cur);
3184 }
3185 }
3186}
3187
3188static bool
3189netxen_list_config_ip(struct netxen_adapter *adapter,
3190 struct in_ifaddr *ifa, unsigned long event)
3191{
3192 struct net_device *dev;
3193 struct nx_ip_list *cur, *tmp_cur;
3194 struct list_head *head;
3195 bool ret = false;
3196
3197 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3198
3199 if (dev == NULL)
3200 goto out;
3201
3202 switch (event) {
3203 case NX_IP_UP:
3204 list_for_each(head, &adapter->ip_list) {
3205 cur = list_entry(head, struct nx_ip_list, list);
3206
3207 if (cur->ip_addr == ifa->ifa_address)
3208 goto out;
3209 }
3210
3211 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC);
3212 if (cur == NULL)
3213 goto out;
3214 if (is_vlan_dev(dev))
3215 dev = vlan_dev_real_dev(dev);
3216 cur->master = !!netif_is_bond_master(dev);
3217 cur->ip_addr = ifa->ifa_address;
3218 list_add_tail(&cur->list, &adapter->ip_list);
3219 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
3220 ret = true;
3221 break;
3222 case NX_IP_DOWN:
3223 list_for_each_entry_safe(cur, tmp_cur,
3224 &adapter->ip_list, list) {
3225 if (cur->ip_addr == ifa->ifa_address) {
3226 list_del(&cur->list);
3227 kfree(cur);
3228 netxen_config_ipaddr(adapter, ifa->ifa_address,
3229 NX_IP_DOWN);
3230 ret = true;
3231 break;
3232 }
3233 }
3234 }
3235out:
3236 return ret;
3237}
3238
3239static void
3240netxen_config_indev_addr(struct netxen_adapter *adapter,
3241 struct net_device *dev, unsigned long event)
3242{
3243 struct in_device *indev;
3244 struct in_ifaddr *ifa;
3245
3246 if (!netxen_destip_supported(adapter))
3247 return;
3248
3249 indev = in_dev_get(dev);
3250 if (!indev)
3251 return;
3252
3253 rcu_read_lock();
3254 in_dev_for_each_ifa_rcu(ifa, indev) {
3255 switch (event) {
3256 case NETDEV_UP:
3257 netxen_list_config_ip(adapter, ifa, NX_IP_UP);
3258 break;
3259 case NETDEV_DOWN:
3260 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN);
3261 break;
3262 default:
3263 break;
3264 }
3265 }
3266 rcu_read_unlock();
3267 in_dev_put(indev);
3268}
3269
3270static void
3271netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)
3272
3273{
3274 struct netxen_adapter *adapter = netdev_priv(netdev);
3275 struct nx_ip_list *pos, *tmp_pos;
3276 unsigned long ip_event;
3277
3278 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3279 netxen_config_indev_addr(adapter, netdev, event);
3280
3281 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) {
3282 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
3283 }
3284}
3285
3286static inline bool
3287netxen_config_checkdev(struct net_device *dev)
3288{
3289 struct netxen_adapter *adapter;
3290
3291 if (!is_netxen_netdev(dev))
3292 return false;
3293 adapter = netdev_priv(dev);
3294 if (!adapter)
3295 return false;
3296 if (!netxen_destip_supported(adapter))
3297 return false;
3298 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3299 return false;
3300
3301 return true;
3302}
3303
3304
3305
3306
3307
3308
3309static void netxen_config_master(struct net_device *dev, unsigned long event)
3310{
3311 struct net_device *master, *slave;
3312 struct netxen_adapter *adapter = netdev_priv(dev);
3313
3314 rcu_read_lock();
3315 master = netdev_master_upper_dev_get_rcu(dev);
3316
3317
3318
3319
3320
3321
3322 if (master && netif_is_bond_master(master) &&
3323 !netif_is_bond_slave(dev)) {
3324 netxen_config_indev_addr(adapter, master, event);
3325 for_each_netdev_rcu(&init_net, slave)
3326 if (is_vlan_dev(slave) &&
3327 vlan_dev_real_dev(slave) == master)
3328 netxen_config_indev_addr(adapter, slave, event);
3329 }
3330 rcu_read_unlock();
3331
3332
3333
3334
3335
3336 if (!master && dev->priv_flags & IFF_BONDING)
3337 netxen_free_ip_list(adapter, true);
3338}
3339
3340static int netxen_netdev_event(struct notifier_block *this,
3341 unsigned long event, void *ptr)
3342{
3343 struct netxen_adapter *adapter;
3344 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3345 struct net_device *orig_dev = dev;
3346 struct net_device *slave;
3347
3348recheck:
3349 if (dev == NULL)
3350 goto done;
3351
3352 if (is_vlan_dev(dev)) {
3353 dev = vlan_dev_real_dev(dev);
3354 goto recheck;
3355 }
3356 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3357
3358 if (netif_is_bond_master(dev)) {
3359 rcu_read_lock();
3360 for_each_netdev_in_bond_rcu(dev, slave) {
3361 if (!netxen_config_checkdev(slave))
3362 continue;
3363 adapter = netdev_priv(slave);
3364 netxen_config_indev_addr(adapter,
3365 orig_dev, event);
3366 }
3367 rcu_read_unlock();
3368 } else {
3369 if (!netxen_config_checkdev(dev))
3370 goto done;
3371 adapter = netdev_priv(dev);
3372
3373 if (orig_dev == dev)
3374 netxen_config_master(dev, event);
3375 netxen_config_indev_addr(adapter, orig_dev, event);
3376 }
3377 }
3378done:
3379 return NOTIFY_DONE;
3380}
3381
3382static int
3383netxen_inetaddr_event(struct notifier_block *this,
3384 unsigned long event, void *ptr)
3385{
3386 struct netxen_adapter *adapter;
3387 struct net_device *dev, *slave;
3388 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3389 unsigned long ip_event;
3390
3391 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3392 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3393recheck:
3394 if (dev == NULL)
3395 goto done;
3396
3397 if (is_vlan_dev(dev)) {
3398 dev = vlan_dev_real_dev(dev);
3399 goto recheck;
3400 }
3401 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3402
3403 if (netif_is_bond_master(dev)) {
3404 rcu_read_lock();
3405 for_each_netdev_in_bond_rcu(dev, slave) {
3406 if (!netxen_config_checkdev(slave))
3407 continue;
3408 adapter = netdev_priv(slave);
3409 netxen_list_config_ip(adapter, ifa, ip_event);
3410 }
3411 rcu_read_unlock();
3412 } else {
3413 if (!netxen_config_checkdev(dev))
3414 goto done;
3415 adapter = netdev_priv(dev);
3416 netxen_list_config_ip(adapter, ifa, ip_event);
3417 }
3418 }
3419done:
3420 return NOTIFY_DONE;
3421}
3422
3423static struct notifier_block netxen_netdev_cb = {
3424 .notifier_call = netxen_netdev_event,
3425};
3426
3427static struct notifier_block netxen_inetaddr_cb = {
3428 .notifier_call = netxen_inetaddr_event,
3429};
3430#else
3431static void
3432netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
3433{ }
3434static void
3435netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
3436{ }
3437#endif
3438
3439static const struct pci_error_handlers netxen_err_handler = {
3440 .error_detected = netxen_io_error_detected,
3441 .slot_reset = netxen_io_slot_reset,
3442};
3443
3444static SIMPLE_DEV_PM_OPS(netxen_nic_pm_ops,
3445 netxen_nic_suspend,
3446 netxen_nic_resume);
3447
3448static struct pci_driver netxen_driver = {
3449 .name = netxen_nic_driver_name,
3450 .id_table = netxen_pci_tbl,
3451 .probe = netxen_nic_probe,
3452 .remove = netxen_nic_remove,
3453 .driver.pm = &netxen_nic_pm_ops,
3454 .shutdown = netxen_nic_shutdown,
3455 .err_handler = &netxen_err_handler
3456};
3457
3458static int __init netxen_init_module(void)
3459{
3460 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
3461
3462#ifdef CONFIG_INET
3463 register_netdevice_notifier(&netxen_netdev_cb);
3464 register_inetaddr_notifier(&netxen_inetaddr_cb);
3465#endif
3466 return pci_register_driver(&netxen_driver);
3467}
3468
3469module_init(netxen_init_module);
3470
3471static void __exit netxen_exit_module(void)
3472{
3473 pci_unregister_driver(&netxen_driver);
3474
3475#ifdef CONFIG_INET
3476 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
3477 unregister_netdevice_notifier(&netxen_netdev_cb);
3478#endif
3479}
3480
3481module_exit(netxen_exit_module);
3482
