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24#include <linux/slab.h>
25#include <linux/vmalloc.h>
26#include <linux/interrupt.h>
27#include "netxen_nic_hw.h"
28
29#include "netxen_nic.h"
30
31#include <linux/dma-mapping.h>
32#include <linux/if_vlan.h>
33#include <net/ip.h>
34#include <linux/ipv6.h>
35#include <linux/inetdevice.h>
36#include <linux/sysfs.h>
37#include <linux/aer.h>
38
39MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver");
40MODULE_LICENSE("GPL");
41MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
42MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
43
44char netxen_nic_driver_name[] = "netxen_nic";
45static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
46 NETXEN_NIC_LINUX_VERSIONID;
47
48static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
49
50
51static int wol_port_mode = 5;
52
53static int use_msi = 1;
54
55static int use_msi_x = 1;
56
57static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
58module_param(auto_fw_reset, int, 0644);
59MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
60
61static int netxen_nic_probe(struct pci_dev *pdev,
62 const struct pci_device_id *ent);
63static void netxen_nic_remove(struct pci_dev *pdev);
64static int netxen_nic_open(struct net_device *netdev);
65static int netxen_nic_close(struct net_device *netdev);
66static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
67 struct net_device *);
68static void netxen_tx_timeout(struct net_device *netdev);
69static void netxen_tx_timeout_task(struct work_struct *work);
70static void netxen_fw_poll_work(struct work_struct *work);
71static void netxen_schedule_work(struct netxen_adapter *adapter,
72 work_func_t func, int delay);
73static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
74static int netxen_nic_poll(struct napi_struct *napi, int budget);
75#ifdef CONFIG_NET_POLL_CONTROLLER
76static void netxen_nic_poll_controller(struct net_device *netdev);
77#endif
78
79static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
80static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
81static void netxen_create_diag_entries(struct netxen_adapter *adapter);
82static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
83static int nx_dev_request_aer(struct netxen_adapter *adapter);
84static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
85static int netxen_can_start_firmware(struct netxen_adapter *adapter);
86
87static irqreturn_t netxen_intr(int irq, void *data);
88static irqreturn_t netxen_msi_intr(int irq, void *data);
89static irqreturn_t netxen_msix_intr(int irq, void *data);
90
91static void netxen_free_ip_list(struct netxen_adapter *, bool);
92static void netxen_restore_indev_addr(struct net_device *dev, unsigned long);
93static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *dev,
94 struct rtnl_link_stats64 *stats);
95static int netxen_nic_set_mac(struct net_device *netdev, void *p);
96
97
98#define ENTRY(device) \
99 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
100 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
101
102static const struct pci_device_id netxen_pci_tbl[] = {
103 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
104 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
105 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
106 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
107 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
108 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
109 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
110 ENTRY(PCI_DEVICE_ID_NX3031),
111 {0,}
112};
113
114MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
115
116static uint32_t crb_cmd_producer[4] = {
117 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
118 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
119};
120
121void
122netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
123 struct nx_host_tx_ring *tx_ring)
124{
125 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
126}
127
128static uint32_t crb_cmd_consumer[4] = {
129 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
130 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
131};
132
133static inline void
134netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
135 struct nx_host_tx_ring *tx_ring)
136{
137 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
138}
139
140static uint32_t msi_tgt_status[8] = {
141 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
142 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
143 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
144 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
145};
146
147static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
148
149static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
150{
151 struct netxen_adapter *adapter = sds_ring->adapter;
152
153 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
154}
155
156static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
157{
158 struct netxen_adapter *adapter = sds_ring->adapter;
159
160 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
161
162 if (!NETXEN_IS_MSI_FAMILY(adapter))
163 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
164}
165
166static int
167netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
168{
169 int size = sizeof(struct nx_host_sds_ring) * count;
170
171 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
172
173 return recv_ctx->sds_rings == NULL;
174}
175
176static void
177netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
178{
179 if (recv_ctx->sds_rings != NULL)
180 kfree(recv_ctx->sds_rings);
181
182 recv_ctx->sds_rings = NULL;
183}
184
185static int
186netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
187{
188 int ring;
189 struct nx_host_sds_ring *sds_ring;
190 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
191
192 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
193 return -ENOMEM;
194
195 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
196 sds_ring = &recv_ctx->sds_rings[ring];
197 netif_napi_add(netdev, &sds_ring->napi,
198 netxen_nic_poll, NAPI_POLL_WEIGHT);
199 }
200
201 return 0;
202}
203
204static void
205netxen_napi_del(struct netxen_adapter *adapter)
206{
207 int ring;
208 struct nx_host_sds_ring *sds_ring;
209 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
210
211 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
212 sds_ring = &recv_ctx->sds_rings[ring];
213 netif_napi_del(&sds_ring->napi);
214 }
215
216 netxen_free_sds_rings(&adapter->recv_ctx);
217}
218
219static void
220netxen_napi_enable(struct netxen_adapter *adapter)
221{
222 int ring;
223 struct nx_host_sds_ring *sds_ring;
224 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
225
226 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
227 sds_ring = &recv_ctx->sds_rings[ring];
228 napi_enable(&sds_ring->napi);
229 netxen_nic_enable_int(sds_ring);
230 }
231}
232
233static void
234netxen_napi_disable(struct netxen_adapter *adapter)
235{
236 int ring;
237 struct nx_host_sds_ring *sds_ring;
238 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
239
240 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
241 sds_ring = &recv_ctx->sds_rings[ring];
242 netxen_nic_disable_int(sds_ring);
243 napi_synchronize(&sds_ring->napi);
244 napi_disable(&sds_ring->napi);
245 }
246}
247
248static int nx_set_dma_mask(struct netxen_adapter *adapter)
249{
250 struct pci_dev *pdev = adapter->pdev;
251 uint64_t mask, cmask;
252
253 adapter->pci_using_dac = 0;
254
255 mask = DMA_BIT_MASK(32);
256 cmask = DMA_BIT_MASK(32);
257
258 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
259#ifndef CONFIG_IA64
260 mask = DMA_BIT_MASK(35);
261#endif
262 } else {
263 mask = DMA_BIT_MASK(39);
264 cmask = mask;
265 }
266
267 if (pci_set_dma_mask(pdev, mask) == 0 &&
268 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
269 adapter->pci_using_dac = 1;
270 return 0;
271 }
272
273 return -EIO;
274}
275
276
277static int
278nx_update_dma_mask(struct netxen_adapter *adapter)
279{
280 int change, shift, err;
281 uint64_t mask, old_mask, old_cmask;
282 struct pci_dev *pdev = adapter->pdev;
283
284 change = 0;
285
286 shift = NXRD32(adapter, CRB_DMA_SHIFT);
287 if (shift > 32)
288 return 0;
289
290 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
291 change = 1;
292 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
293 change = 1;
294
295 if (change) {
296 old_mask = pdev->dma_mask;
297 old_cmask = pdev->dev.coherent_dma_mask;
298
299 mask = DMA_BIT_MASK(32+shift);
300
301 err = pci_set_dma_mask(pdev, mask);
302 if (err)
303 goto err_out;
304
305 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
306
307 err = pci_set_consistent_dma_mask(pdev, mask);
308 if (err)
309 goto err_out;
310 }
311 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
312 }
313
314 return 0;
315
316err_out:
317 pci_set_dma_mask(pdev, old_mask);
318 pci_set_consistent_dma_mask(pdev, old_cmask);
319 return err;
320}
321
322static int
323netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
324{
325 u32 val, timeout;
326
327 if (first_boot == 0x55555555) {
328
329 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
330
331 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
332 return 0;
333
334
335 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
336 if (!(first_boot & 0x4)) {
337 first_boot |= 0x4;
338 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
339 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
340 }
341
342
343 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
344 if (first_boot != 0x80000f) {
345
346 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
347 return -EIO;
348 }
349
350
351 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
352 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
353 timeout = 0;
354 do {
355 msleep(1);
356 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
357
358 if (++timeout > 5000)
359 return -EIO;
360
361 } while (val == NETXEN_BDINFO_MAGIC);
362 }
363 return 0;
364}
365
366static void netxen_set_port_mode(struct netxen_adapter *adapter)
367{
368 u32 val, data;
369
370 val = adapter->ahw.board_type;
371 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
372 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
373 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
374 data = NETXEN_PORT_MODE_802_3_AP;
375 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
376 } else if (port_mode == NETXEN_PORT_MODE_XG) {
377 data = NETXEN_PORT_MODE_XG;
378 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
379 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
380 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
381 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
382 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
383 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
384 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
385 } else {
386 data = NETXEN_PORT_MODE_AUTO_NEG;
387 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
388 }
389
390 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
391 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
392 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
393 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
394 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
395 }
396 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
397 }
398}
399
400#define PCI_CAP_ID_GEN 0x10
401
402static void netxen_pcie_strap_init(struct netxen_adapter *adapter)
403{
404 u32 pdevfuncsave;
405 u32 c8c9value = 0;
406 u32 chicken = 0;
407 u32 control = 0;
408 int i, pos;
409 struct pci_dev *pdev;
410
411 pdev = adapter->pdev;
412
413 chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3));
414
415 chicken &= 0xFCFFFFFF;
416
417
418
419
420 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN);
421 if (pos == 0xC0) {
422 pci_read_config_dword(pdev, pos + 0x10, &control);
423 if ((control & 0x000F0000) != 0x00020000) {
424
425 chicken |= 0x01000000;
426 }
427 dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n");
428 c8c9value = 0xF1000;
429 } else {
430
431 chicken |= 0x01000000;
432 dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n");
433 if (adapter->ahw.revision_id == NX_P3_B0)
434 c8c9value = 0xF1020;
435 else
436 c8c9value = 0;
437 }
438
439 NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken);
440
441 if (!c8c9value)
442 return;
443
444 pdevfuncsave = pdev->devfn;
445 if (pdevfuncsave & 0x07)
446 return;
447
448 for (i = 0; i < 8; i++) {
449 pci_read_config_dword(pdev, pos + 8, &control);
450 pci_read_config_dword(pdev, pos + 8, &control);
451 pci_write_config_dword(pdev, pos + 8, c8c9value);
452 pdev->devfn++;
453 }
454 pdev->devfn = pdevfuncsave;
455}
456
457static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
458{
459 u32 control;
460
461 if (pdev->msix_cap) {
462 pci_read_config_dword(pdev, pdev->msix_cap, &control);
463 if (enable)
464 control |= PCI_MSIX_FLAGS_ENABLE;
465 else
466 control = 0;
467 pci_write_config_dword(pdev, pdev->msix_cap, control);
468 }
469}
470
471static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
472{
473 int i;
474
475 for (i = 0; i < count; i++)
476 adapter->msix_entries[i].entry = i;
477}
478
479static int
480netxen_read_mac_addr(struct netxen_adapter *adapter)
481{
482 int i;
483 unsigned char *p;
484 u64 mac_addr;
485 struct net_device *netdev = adapter->netdev;
486 struct pci_dev *pdev = adapter->pdev;
487
488 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
489 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
490 return -EIO;
491 } else {
492 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
493 return -EIO;
494 }
495
496 p = (unsigned char *)&mac_addr;
497 for (i = 0; i < 6; i++)
498 netdev->dev_addr[i] = *(p + 5 - i);
499
500 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
501
502
503
504 if (!is_valid_ether_addr(netdev->dev_addr))
505 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
506
507 return 0;
508}
509
510static int netxen_nic_set_mac(struct net_device *netdev, void *p)
511{
512 struct netxen_adapter *adapter = netdev_priv(netdev);
513 struct sockaddr *addr = p;
514
515 if (!is_valid_ether_addr(addr->sa_data))
516 return -EADDRNOTAVAIL;
517
518 if (netif_running(netdev)) {
519 netif_device_detach(netdev);
520 netxen_napi_disable(adapter);
521 }
522
523 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
524 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
525 adapter->macaddr_set(adapter, addr->sa_data);
526
527 if (netif_running(netdev)) {
528 netif_device_attach(netdev);
529 netxen_napi_enable(adapter);
530 }
531 return 0;
532}
533
534static void netxen_set_multicast_list(struct net_device *dev)
535{
536 struct netxen_adapter *adapter = netdev_priv(dev);
537
538 adapter->set_multi(dev);
539}
540
541static netdev_features_t netxen_fix_features(struct net_device *dev,
542 netdev_features_t features)
543{
544 if (!(features & NETIF_F_RXCSUM)) {
545 netdev_info(dev, "disabling LRO as RXCSUM is off\n");
546
547 features &= ~NETIF_F_LRO;
548 }
549
550 return features;
551}
552
553static int netxen_set_features(struct net_device *dev,
554 netdev_features_t features)
555{
556 struct netxen_adapter *adapter = netdev_priv(dev);
557 int hw_lro;
558
559 if (!((dev->features ^ features) & NETIF_F_LRO))
560 return 0;
561
562 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED
563 : NETXEN_NIC_LRO_DISABLED;
564
565 if (netxen_config_hw_lro(adapter, hw_lro))
566 return -EIO;
567
568 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter))
569 return -EIO;
570
571 return 0;
572}
573
574static const struct net_device_ops netxen_netdev_ops = {
575 .ndo_open = netxen_nic_open,
576 .ndo_stop = netxen_nic_close,
577 .ndo_start_xmit = netxen_nic_xmit_frame,
578 .ndo_get_stats64 = netxen_nic_get_stats,
579 .ndo_validate_addr = eth_validate_addr,
580 .ndo_set_rx_mode = netxen_set_multicast_list,
581 .ndo_set_mac_address = netxen_nic_set_mac,
582 .ndo_change_mtu = netxen_nic_change_mtu,
583 .ndo_tx_timeout = netxen_tx_timeout,
584 .ndo_fix_features = netxen_fix_features,
585 .ndo_set_features = netxen_set_features,
586#ifdef CONFIG_NET_POLL_CONTROLLER
587 .ndo_poll_controller = netxen_nic_poll_controller,
588#endif
589};
590
591static inline bool netxen_function_zero(struct pci_dev *pdev)
592{
593 return (PCI_FUNC(pdev->devfn) == 0) ? true : false;
594}
595
596static inline void netxen_set_interrupt_mode(struct netxen_adapter *adapter,
597 u32 mode)
598{
599 NXWR32(adapter, NETXEN_INTR_MODE_REG, mode);
600}
601
602static inline u32 netxen_get_interrupt_mode(struct netxen_adapter *adapter)
603{
604 return NXRD32(adapter, NETXEN_INTR_MODE_REG);
605}
606
607static void
608netxen_initialize_interrupt_registers(struct netxen_adapter *adapter)
609{
610 struct netxen_legacy_intr_set *legacy_intrp;
611 u32 tgt_status_reg, int_state_reg;
612
613 if (adapter->ahw.revision_id >= NX_P3_B0)
614 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
615 else
616 legacy_intrp = &legacy_intr[0];
617
618 tgt_status_reg = legacy_intrp->tgt_status_reg;
619 int_state_reg = ISR_INT_STATE_REG;
620
621 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
622 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, tgt_status_reg);
623 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
624 legacy_intrp->tgt_mask_reg);
625 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
626 legacy_intrp->pci_int_reg);
627 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
628
629 if (adapter->ahw.revision_id >= NX_P3_B1)
630 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
631 int_state_reg);
632 else
633 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
634 CRB_INT_VECTOR);
635}
636
637static int netxen_setup_msi_interrupts(struct netxen_adapter *adapter,
638 int num_msix)
639{
640 struct pci_dev *pdev = adapter->pdev;
641 u32 value;
642 int err;
643
644 if (adapter->msix_supported) {
645 netxen_init_msix_entries(adapter, num_msix);
646 err = pci_enable_msix_range(pdev, adapter->msix_entries,
647 num_msix, num_msix);
648 if (err > 0) {
649 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
650 netxen_set_msix_bit(pdev, 1);
651
652 if (adapter->rss_supported)
653 adapter->max_sds_rings = num_msix;
654
655 dev_info(&pdev->dev, "using msi-x interrupts\n");
656 return 0;
657 }
658
659 }
660
661 if (use_msi && !pci_enable_msi(pdev)) {
662 value = msi_tgt_status[adapter->ahw.pci_func];
663 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
664 adapter->tgt_status_reg = netxen_get_ioaddr(adapter, value);
665 adapter->msix_entries[0].vector = pdev->irq;
666 dev_info(&pdev->dev, "using msi interrupts\n");
667 return 0;
668 }
669
670 dev_err(&pdev->dev, "Failed to acquire MSI-X/MSI interrupt vector\n");
671 return -EIO;
672}
673
674static int netxen_setup_intr(struct netxen_adapter *adapter)
675{
676 struct pci_dev *pdev = adapter->pdev;
677 int num_msix;
678
679 if (adapter->rss_supported)
680 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
681 MSIX_ENTRIES_PER_ADAPTER : 2;
682 else
683 num_msix = 1;
684
685 adapter->max_sds_rings = 1;
686 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
687
688 netxen_initialize_interrupt_registers(adapter);
689 netxen_set_msix_bit(pdev, 0);
690
691 if (netxen_function_zero(pdev)) {
692 if (!netxen_setup_msi_interrupts(adapter, num_msix))
693 netxen_set_interrupt_mode(adapter, NETXEN_MSI_MODE);
694 else
695 netxen_set_interrupt_mode(adapter, NETXEN_INTX_MODE);
696 } else {
697 if (netxen_get_interrupt_mode(adapter) == NETXEN_MSI_MODE &&
698 netxen_setup_msi_interrupts(adapter, num_msix)) {
699 dev_err(&pdev->dev, "Co-existence of MSI-X/MSI and INTx interrupts is not supported\n");
700 return -EIO;
701 }
702 }
703
704 if (!NETXEN_IS_MSI_FAMILY(adapter)) {
705 adapter->msix_entries[0].vector = pdev->irq;
706 dev_info(&pdev->dev, "using legacy interrupts\n");
707 }
708 return 0;
709}
710
711static void
712netxen_teardown_intr(struct netxen_adapter *adapter)
713{
714 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
715 pci_disable_msix(adapter->pdev);
716 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
717 pci_disable_msi(adapter->pdev);
718}
719
720static void
721netxen_cleanup_pci_map(struct netxen_adapter *adapter)
722{
723 if (adapter->ahw.db_base != NULL)
724 iounmap(adapter->ahw.db_base);
725 if (adapter->ahw.pci_base0 != NULL)
726 iounmap(adapter->ahw.pci_base0);
727 if (adapter->ahw.pci_base1 != NULL)
728 iounmap(adapter->ahw.pci_base1);
729 if (adapter->ahw.pci_base2 != NULL)
730 iounmap(adapter->ahw.pci_base2);
731}
732
733static int
734netxen_setup_pci_map(struct netxen_adapter *adapter)
735{
736 void __iomem *db_ptr = NULL;
737
738 resource_size_t mem_base, db_base;
739 unsigned long mem_len, db_len = 0;
740
741 struct pci_dev *pdev = adapter->pdev;
742 int pci_func = adapter->ahw.pci_func;
743 struct netxen_hardware_context *ahw = &adapter->ahw;
744
745 int err = 0;
746
747
748
749
750
751 adapter->ahw.crb_win = -1;
752 adapter->ahw.ocm_win = -1;
753
754
755 mem_base = pci_resource_start(pdev, 0);
756 mem_len = pci_resource_len(pdev, 0);
757
758
759 if (mem_len == NETXEN_PCI_128MB_SIZE) {
760
761 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
762 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
763 SECOND_PAGE_GROUP_SIZE);
764 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
765 THIRD_PAGE_GROUP_SIZE);
766 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
767 ahw->pci_base2 == NULL) {
768 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
769 err = -EIO;
770 goto err_out;
771 }
772
773 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
774
775 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
776
777 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
778 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
779 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
780 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
781 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
782 err = -EIO;
783 goto err_out;
784 }
785
786 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
787
788 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
789 if (ahw->pci_base0 == NULL) {
790 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
791 return -EIO;
792 }
793 ahw->pci_len0 = mem_len;
794 } else {
795 return -EIO;
796 }
797
798 netxen_setup_hwops(adapter);
799
800 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
801
802 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
803 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
804 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
805
806 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
807 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
808 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
809 }
810
811 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
812 goto skip_doorbell;
813
814 db_base = pci_resource_start(pdev, 4);
815 db_len = pci_resource_len(pdev, 4);
816
817 if (db_len == 0) {
818 printk(KERN_ERR "%s: doorbell is disabled\n",
819 netxen_nic_driver_name);
820 err = -EIO;
821 goto err_out;
822 }
823
824 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
825 if (!db_ptr) {
826 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
827 netxen_nic_driver_name);
828 err = -EIO;
829 goto err_out;
830 }
831
832skip_doorbell:
833 adapter->ahw.db_base = db_ptr;
834 adapter->ahw.db_len = db_len;
835 return 0;
836
837err_out:
838 netxen_cleanup_pci_map(adapter);
839 return err;
840}
841
842static void
843netxen_check_options(struct netxen_adapter *adapter)
844{
845 u32 fw_major, fw_minor, fw_build, prev_fw_version;
846 char brd_name[NETXEN_MAX_SHORT_NAME];
847 char serial_num[32];
848 int i, offset, val, err;
849 __le32 *ptr32;
850 struct pci_dev *pdev = adapter->pdev;
851
852 adapter->driver_mismatch = 0;
853
854 ptr32 = (__le32 *)&serial_num;
855 offset = NX_FW_SERIAL_NUM_OFFSET;
856 for (i = 0; i < 8; i++) {
857 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
858 dev_err(&pdev->dev, "error reading board info\n");
859 adapter->driver_mismatch = 1;
860 return;
861 }
862 ptr32[i] = cpu_to_le32(val);
863 offset += sizeof(u32);
864 }
865
866 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
867 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
868 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
869 prev_fw_version = adapter->fw_version;
870 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
871
872
873 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
874 if (adapter->mdump.md_template == NULL ||
875 adapter->fw_version > prev_fw_version) {
876 kfree(adapter->mdump.md_template);
877 adapter->mdump.md_template = NULL;
878 err = netxen_setup_minidump(adapter);
879 if (err)
880 dev_err(&adapter->pdev->dev,
881 "Failed to setup minidump rcode = %d\n", err);
882 }
883 }
884
885 if (adapter->portnum == 0) {
886 if (netxen_nic_get_brd_name_by_type(adapter->ahw.board_type,
887 brd_name))
888 strcpy(serial_num, "Unknown");
889
890 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
891 module_name(THIS_MODULE),
892 brd_name, serial_num, adapter->ahw.revision_id);
893 }
894
895 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
896 adapter->driver_mismatch = 1;
897 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
898 fw_major, fw_minor, fw_build);
899 return;
900 }
901
902 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
903 i = NXRD32(adapter, NETXEN_SRE_MISC);
904 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
905 }
906
907 dev_info(&pdev->dev, "Driver v%s, firmware v%d.%d.%d [%s]\n",
908 NETXEN_NIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build,
909 adapter->ahw.cut_through ? "cut-through" : "legacy");
910
911 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
912 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
913
914 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
915 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
916 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
917 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
918 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
919 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
920 }
921
922 adapter->msix_supported = 0;
923 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
924 adapter->msix_supported = !!use_msi_x;
925 adapter->rss_supported = !!use_msi_x;
926 } else {
927 u32 flashed_ver = 0;
928 netxen_rom_fast_read(adapter,
929 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
930 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
931
932 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
933 switch (adapter->ahw.board_type) {
934 case NETXEN_BRDTYPE_P2_SB31_10G:
935 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
936 adapter->msix_supported = !!use_msi_x;
937 adapter->rss_supported = !!use_msi_x;
938 break;
939 default:
940 break;
941 }
942 }
943 }
944
945 adapter->num_txd = MAX_CMD_DESCRIPTORS;
946
947 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
948 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
949 adapter->max_rds_rings = 3;
950 } else {
951 adapter->num_lro_rxd = 0;
952 adapter->max_rds_rings = 2;
953 }
954}
955
956static int
957netxen_start_firmware(struct netxen_adapter *adapter)
958{
959 int val, err, first_boot;
960 struct pci_dev *pdev = adapter->pdev;
961
962
963 err = nx_set_dma_mask(adapter);
964 if (err)
965 return err;
966
967 err = netxen_can_start_firmware(adapter);
968
969 if (err < 0)
970 return err;
971
972 if (!err)
973 goto wait_init;
974
975 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
976
977 err = netxen_check_hw_init(adapter, first_boot);
978 if (err) {
979 dev_err(&pdev->dev, "error in init HW init sequence\n");
980 return err;
981 }
982
983 netxen_request_firmware(adapter);
984
985 err = netxen_need_fw_reset(adapter);
986 if (err < 0)
987 goto err_out;
988 if (err == 0)
989 goto pcie_strap_init;
990
991 if (first_boot != 0x55555555) {
992 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
993 netxen_pinit_from_rom(adapter);
994 msleep(1);
995 }
996
997 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
998 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
999 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
1000
1001 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1002 netxen_set_port_mode(adapter);
1003
1004 err = netxen_load_firmware(adapter);
1005 if (err)
1006 goto err_out;
1007
1008 netxen_release_firmware(adapter);
1009
1010 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1011
1012
1013 val = 0x7654;
1014 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
1015 val |= 0x0f000000;
1016 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
1017
1018 }
1019
1020 err = netxen_init_dummy_dma(adapter);
1021 if (err)
1022 goto err_out;
1023
1024
1025
1026
1027 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
1028 | ((_NETXEN_NIC_LINUX_MINOR << 8))
1029 | (_NETXEN_NIC_LINUX_SUBVERSION);
1030 NXWR32(adapter, CRB_DRIVER_VERSION, val);
1031
1032pcie_strap_init:
1033 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1034 netxen_pcie_strap_init(adapter);
1035
1036wait_init:
1037
1038 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
1039 if (err) {
1040 netxen_free_dummy_dma(adapter);
1041 goto err_out;
1042 }
1043
1044 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
1045
1046 nx_update_dma_mask(adapter);
1047
1048 netxen_check_options(adapter);
1049
1050 adapter->need_fw_reset = 0;
1051
1052
1053
1054err_out:
1055 netxen_release_firmware(adapter);
1056 return err;
1057}
1058
1059static int
1060netxen_nic_request_irq(struct netxen_adapter *adapter)
1061{
1062 irq_handler_t handler;
1063 struct nx_host_sds_ring *sds_ring;
1064 int err, ring;
1065
1066 unsigned long flags = 0;
1067 struct net_device *netdev = adapter->netdev;
1068 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1069
1070 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
1071 handler = netxen_msix_intr;
1072 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
1073 handler = netxen_msi_intr;
1074 else {
1075 flags |= IRQF_SHARED;
1076 handler = netxen_intr;
1077 }
1078 adapter->irq = netdev->irq;
1079
1080 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1081 sds_ring = &recv_ctx->sds_rings[ring];
1082 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1083 err = request_irq(sds_ring->irq, handler,
1084 flags, sds_ring->name, sds_ring);
1085 if (err)
1086 return err;
1087 }
1088
1089 return 0;
1090}
1091
1092static void
1093netxen_nic_free_irq(struct netxen_adapter *adapter)
1094{
1095 int ring;
1096 struct nx_host_sds_ring *sds_ring;
1097
1098 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1099
1100 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1101 sds_ring = &recv_ctx->sds_rings[ring];
1102 free_irq(sds_ring->irq, sds_ring);
1103 }
1104}
1105
1106static void
1107netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
1108{
1109 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
1110 adapter->coal.normal.data.rx_time_us =
1111 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
1112 adapter->coal.normal.data.rx_packets =
1113 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
1114 adapter->coal.normal.data.tx_time_us =
1115 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
1116 adapter->coal.normal.data.tx_packets =
1117 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
1118}
1119
1120
1121static int
1122__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1123{
1124 int err;
1125
1126 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1127 return -EIO;
1128
1129 err = adapter->init_port(adapter, adapter->physical_port);
1130 if (err) {
1131 printk(KERN_ERR "%s: Failed to initialize port %d\n",
1132 netxen_nic_driver_name, adapter->portnum);
1133 return err;
1134 }
1135 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1136 adapter->macaddr_set(adapter, adapter->mac_addr);
1137
1138 adapter->set_multi(netdev);
1139 adapter->set_mtu(adapter, netdev->mtu);
1140
1141 adapter->ahw.linkup = 0;
1142
1143 if (adapter->max_sds_rings > 1)
1144 netxen_config_rss(adapter, 1);
1145
1146 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1147 netxen_config_intr_coalesce(adapter);
1148
1149 if (netdev->features & NETIF_F_LRO)
1150 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
1151
1152 netxen_napi_enable(adapter);
1153
1154 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1155 netxen_linkevent_request(adapter, 1);
1156 else
1157 netxen_nic_set_link_parameters(adapter);
1158
1159 set_bit(__NX_DEV_UP, &adapter->state);
1160 return 0;
1161}
1162
1163
1164
1165static inline int
1166netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1167{
1168 int err = 0;
1169
1170 rtnl_lock();
1171 if (netif_running(netdev))
1172 err = __netxen_nic_up(adapter, netdev);
1173 rtnl_unlock();
1174
1175 return err;
1176}
1177
1178
1179static void
1180__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1181{
1182 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1183 return;
1184
1185 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1186 return;
1187
1188 smp_mb();
1189 netif_carrier_off(netdev);
1190 netif_tx_disable(netdev);
1191
1192 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1193 netxen_linkevent_request(adapter, 0);
1194
1195 if (adapter->stop_port)
1196 adapter->stop_port(adapter);
1197
1198 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1199 netxen_p3_free_mac_list(adapter);
1200
1201 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1202
1203 netxen_napi_disable(adapter);
1204
1205 netxen_release_tx_buffers(adapter);
1206}
1207
1208
1209
1210static inline void
1211netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1212{
1213 rtnl_lock();
1214 if (netif_running(netdev))
1215 __netxen_nic_down(adapter, netdev);
1216 rtnl_unlock();
1217
1218}
1219
1220static int
1221netxen_nic_attach(struct netxen_adapter *adapter)
1222{
1223 struct net_device *netdev = adapter->netdev;
1224 struct pci_dev *pdev = adapter->pdev;
1225 int err, ring;
1226 struct nx_host_rds_ring *rds_ring;
1227 struct nx_host_tx_ring *tx_ring;
1228 u32 capab2;
1229
1230 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1231 return 0;
1232
1233 err = netxen_init_firmware(adapter);
1234 if (err)
1235 return err;
1236
1237 adapter->flags &= ~NETXEN_FW_MSS_CAP;
1238 if (adapter->capabilities & NX_FW_CAPABILITY_MORE_CAPS) {
1239 capab2 = NXRD32(adapter, CRB_FW_CAPABILITIES_2);
1240 if (capab2 & NX_FW_CAPABILITY_2_LRO_MAX_TCP_SEG)
1241 adapter->flags |= NETXEN_FW_MSS_CAP;
1242 }
1243
1244 err = netxen_napi_add(adapter, netdev);
1245 if (err)
1246 return err;
1247
1248 err = netxen_alloc_sw_resources(adapter);
1249 if (err) {
1250 printk(KERN_ERR "%s: Error in setting sw resources\n",
1251 netdev->name);
1252 return err;
1253 }
1254
1255 err = netxen_alloc_hw_resources(adapter);
1256 if (err) {
1257 printk(KERN_ERR "%s: Error in setting hw resources\n",
1258 netdev->name);
1259 goto err_out_free_sw;
1260 }
1261
1262 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1263 tx_ring = adapter->tx_ring;
1264 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1265 crb_cmd_producer[adapter->portnum]);
1266 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1267 crb_cmd_consumer[adapter->portnum]);
1268
1269 tx_ring->producer = 0;
1270 tx_ring->sw_consumer = 0;
1271
1272 netxen_nic_update_cmd_producer(adapter, tx_ring);
1273 netxen_nic_update_cmd_consumer(adapter, tx_ring);
1274 }
1275
1276 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1277 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1278 netxen_post_rx_buffers(adapter, ring, rds_ring);
1279 }
1280
1281 err = netxen_nic_request_irq(adapter);
1282 if (err) {
1283 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1284 netdev->name);
1285 goto err_out_free_rxbuf;
1286 }
1287
1288 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1289 netxen_nic_init_coalesce_defaults(adapter);
1290
1291 netxen_create_sysfs_entries(adapter);
1292
1293 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1294 return 0;
1295
1296err_out_free_rxbuf:
1297 netxen_release_rx_buffers(adapter);
1298 netxen_free_hw_resources(adapter);
1299err_out_free_sw:
1300 netxen_free_sw_resources(adapter);
1301 return err;
1302}
1303
1304static void
1305netxen_nic_detach(struct netxen_adapter *adapter)
1306{
1307 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1308 return;
1309
1310 netxen_remove_sysfs_entries(adapter);
1311
1312 netxen_free_hw_resources(adapter);
1313 netxen_release_rx_buffers(adapter);
1314 netxen_nic_free_irq(adapter);
1315 netxen_napi_del(adapter);
1316 netxen_free_sw_resources(adapter);
1317
1318 adapter->is_up = 0;
1319}
1320
1321int
1322netxen_nic_reset_context(struct netxen_adapter *adapter)
1323{
1324 int err = 0;
1325 struct net_device *netdev = adapter->netdev;
1326
1327 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1328 return -EBUSY;
1329
1330 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1331
1332 netif_device_detach(netdev);
1333
1334 if (netif_running(netdev))
1335 __netxen_nic_down(adapter, netdev);
1336
1337 netxen_nic_detach(adapter);
1338
1339 if (netif_running(netdev)) {
1340 err = netxen_nic_attach(adapter);
1341 if (!err)
1342 err = __netxen_nic_up(adapter, netdev);
1343
1344 if (err)
1345 goto done;
1346 }
1347
1348 netif_device_attach(netdev);
1349 }
1350
1351done:
1352 clear_bit(__NX_RESETTING, &adapter->state);
1353 return err;
1354}
1355
1356static int
1357netxen_setup_netdev(struct netxen_adapter *adapter,
1358 struct net_device *netdev)
1359{
1360 int err = 0;
1361 struct pci_dev *pdev = adapter->pdev;
1362
1363 adapter->mc_enabled = 0;
1364 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1365 adapter->max_mc_count = 38;
1366 else
1367 adapter->max_mc_count = 16;
1368
1369 netdev->netdev_ops = &netxen_netdev_ops;
1370 netdev->watchdog_timeo = 5*HZ;
1371
1372 netxen_nic_change_mtu(netdev, netdev->mtu);
1373
1374 netdev->ethtool_ops = &netxen_nic_ethtool_ops;
1375
1376 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
1377 NETIF_F_RXCSUM;
1378
1379 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1380 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1381
1382 netdev->vlan_features |= netdev->hw_features;
1383
1384 if (adapter->pci_using_dac) {
1385 netdev->features |= NETIF_F_HIGHDMA;
1386 netdev->vlan_features |= NETIF_F_HIGHDMA;
1387 }
1388
1389 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1390 netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_TX;
1391
1392 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1393 netdev->hw_features |= NETIF_F_LRO;
1394
1395 netdev->features |= netdev->hw_features;
1396
1397 netdev->irq = adapter->msix_entries[0].vector;
1398
1399 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1400
1401 if (netxen_read_mac_addr(adapter))
1402 dev_warn(&pdev->dev, "failed to read mac addr\n");
1403
1404 netif_carrier_off(netdev);
1405
1406 err = register_netdev(netdev);
1407 if (err) {
1408 dev_err(&pdev->dev, "failed to register net device\n");
1409 return err;
1410 }
1411
1412 return 0;
1413}
1414
1415#define NETXEN_ULA_ADAPTER_KEY (0xdaddad01)
1416#define NETXEN_NON_ULA_ADAPTER_KEY (0xdaddad00)
1417
1418static void netxen_read_ula_info(struct netxen_adapter *adapter)
1419{
1420 u32 temp;
1421
1422
1423 if (adapter->portnum != 0)
1424 return;
1425
1426 temp = NXRD32(adapter, NETXEN_ULA_KEY);
1427 switch (temp) {
1428 case NETXEN_ULA_ADAPTER_KEY:
1429 dev_info(&adapter->pdev->dev, "ULA adapter");
1430 break;
1431 case NETXEN_NON_ULA_ADAPTER_KEY:
1432 dev_info(&adapter->pdev->dev, "non ULA adapter");
1433 break;
1434 default:
1435 break;
1436 }
1437
1438 return;
1439}
1440
1441#ifdef CONFIG_PCIEAER
1442static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1443{
1444 struct pci_dev *pdev = adapter->pdev;
1445 struct pci_dev *root = pdev->bus->self;
1446 u32 aer_pos;
1447
1448
1449 if (!root)
1450 return;
1451
1452 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1453 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1454 return;
1455
1456 if (pci_pcie_type(root) != PCI_EXP_TYPE_ROOT_PORT)
1457 return;
1458
1459 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1460 if (!aer_pos)
1461 return;
1462
1463 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1464}
1465#endif
1466
1467static int
1468netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1469{
1470 struct net_device *netdev = NULL;
1471 struct netxen_adapter *adapter = NULL;
1472 int i = 0, err;
1473 int pci_func_id = PCI_FUNC(pdev->devfn);
1474 uint8_t revision_id;
1475 u32 val;
1476
1477 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1478 pr_warn("%s: chip revisions between 0x%x-0x%x will not be enabled\n",
1479 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
1480 return -ENODEV;
1481 }
1482
1483 if ((err = pci_enable_device(pdev)))
1484 return err;
1485
1486 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1487 err = -ENODEV;
1488 goto err_out_disable_pdev;
1489 }
1490
1491 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1492 goto err_out_disable_pdev;
1493
1494 if (NX_IS_REVISION_P3(pdev->revision))
1495 pci_enable_pcie_error_reporting(pdev);
1496
1497 pci_set_master(pdev);
1498
1499 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1500 if(!netdev) {
1501 err = -ENOMEM;
1502 goto err_out_free_res;
1503 }
1504
1505 SET_NETDEV_DEV(netdev, &pdev->dev);
1506
1507 adapter = netdev_priv(netdev);
1508 adapter->netdev = netdev;
1509 adapter->pdev = pdev;
1510 adapter->ahw.pci_func = pci_func_id;
1511
1512 revision_id = pdev->revision;
1513 adapter->ahw.revision_id = revision_id;
1514
1515 rwlock_init(&adapter->ahw.crb_lock);
1516 spin_lock_init(&adapter->ahw.mem_lock);
1517
1518 spin_lock_init(&adapter->tx_clean_lock);
1519 INIT_LIST_HEAD(&adapter->mac_list);
1520 INIT_LIST_HEAD(&adapter->ip_list);
1521
1522 err = netxen_setup_pci_map(adapter);
1523 if (err)
1524 goto err_out_free_netdev;
1525
1526
1527 adapter->portnum = pci_func_id;
1528
1529 err = netxen_nic_get_board_info(adapter);
1530 if (err) {
1531 dev_err(&pdev->dev, "Error getting board config info.\n");
1532 goto err_out_iounmap;
1533 }
1534
1535#ifdef CONFIG_PCIEAER
1536 netxen_mask_aer_correctable(adapter);
1537#endif
1538
1539
1540 switch (adapter->ahw.board_type) {
1541 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1542 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1543 if (pci_func_id >= 2)
1544 adapter->portnum = pci_func_id - 2;
1545 break;
1546 default:
1547 break;
1548 }
1549
1550 err = netxen_check_flash_fw_compatibility(adapter);
1551 if (err)
1552 goto err_out_iounmap;
1553
1554 if (adapter->portnum == 0) {
1555 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1556 if (val != 0xffffffff && val != 0) {
1557 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1558 adapter->need_fw_reset = 1;
1559 }
1560 }
1561
1562 err = netxen_start_firmware(adapter);
1563 if (err)
1564 goto err_out_decr_ref;
1565
1566
1567
1568
1569 adapter->physical_port = adapter->portnum;
1570 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1571 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1572 if (i != 0x55555555)
1573 adapter->physical_port = i;
1574 }
1575
1576 netxen_nic_clear_stats(adapter);
1577
1578 err = netxen_setup_intr(adapter);
1579
1580 if (err) {
1581 dev_err(&adapter->pdev->dev,
1582 "Failed to setup interrupts, error = %d\n", err);
1583 goto err_out_disable_msi;
1584 }
1585
1586 netxen_read_ula_info(adapter);
1587
1588 err = netxen_setup_netdev(adapter, netdev);
1589 if (err)
1590 goto err_out_disable_msi;
1591
1592 pci_set_drvdata(pdev, adapter);
1593
1594 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1595
1596 switch (adapter->ahw.port_type) {
1597 case NETXEN_NIC_GBE:
1598 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1599 adapter->netdev->name);
1600 break;
1601 case NETXEN_NIC_XGBE:
1602 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1603 adapter->netdev->name);
1604 break;
1605 }
1606
1607 netxen_create_diag_entries(adapter);
1608
1609 return 0;
1610
1611err_out_disable_msi:
1612 netxen_teardown_intr(adapter);
1613
1614 netxen_free_dummy_dma(adapter);
1615
1616err_out_decr_ref:
1617 nx_decr_dev_ref_cnt(adapter);
1618
1619err_out_iounmap:
1620 netxen_cleanup_pci_map(adapter);
1621
1622err_out_free_netdev:
1623 free_netdev(netdev);
1624
1625err_out_free_res:
1626 pci_release_regions(pdev);
1627
1628err_out_disable_pdev:
1629 pci_disable_device(pdev);
1630 return err;
1631}
1632
1633static
1634void netxen_cleanup_minidump(struct netxen_adapter *adapter)
1635{
1636 kfree(adapter->mdump.md_template);
1637 adapter->mdump.md_template = NULL;
1638
1639 if (adapter->mdump.md_capture_buff) {
1640 vfree(adapter->mdump.md_capture_buff);
1641 adapter->mdump.md_capture_buff = NULL;
1642 }
1643}
1644
1645static void netxen_nic_remove(struct pci_dev *pdev)
1646{
1647 struct netxen_adapter *adapter;
1648 struct net_device *netdev;
1649
1650 adapter = pci_get_drvdata(pdev);
1651 if (adapter == NULL)
1652 return;
1653
1654 netdev = adapter->netdev;
1655
1656 netxen_cancel_fw_work(adapter);
1657
1658 unregister_netdev(netdev);
1659
1660 cancel_work_sync(&adapter->tx_timeout_task);
1661
1662 netxen_free_ip_list(adapter, false);
1663 netxen_nic_detach(adapter);
1664
1665 nx_decr_dev_ref_cnt(adapter);
1666
1667 if (adapter->portnum == 0)
1668 netxen_free_dummy_dma(adapter);
1669
1670 clear_bit(__NX_RESETTING, &adapter->state);
1671
1672 netxen_teardown_intr(adapter);
1673 netxen_set_interrupt_mode(adapter, 0);
1674 netxen_remove_diag_entries(adapter);
1675
1676 netxen_cleanup_pci_map(adapter);
1677
1678 netxen_release_firmware(adapter);
1679
1680 if (NX_IS_REVISION_P3(pdev->revision)) {
1681 netxen_cleanup_minidump(adapter);
1682 pci_disable_pcie_error_reporting(pdev);
1683 }
1684
1685 pci_release_regions(pdev);
1686 pci_disable_device(pdev);
1687
1688 free_netdev(netdev);
1689}
1690
1691static void netxen_nic_detach_func(struct netxen_adapter *adapter)
1692{
1693 struct net_device *netdev = adapter->netdev;
1694
1695 netif_device_detach(netdev);
1696
1697 netxen_cancel_fw_work(adapter);
1698
1699 if (netif_running(netdev))
1700 netxen_nic_down(adapter, netdev);
1701
1702 cancel_work_sync(&adapter->tx_timeout_task);
1703
1704 netxen_nic_detach(adapter);
1705
1706 if (adapter->portnum == 0)
1707 netxen_free_dummy_dma(adapter);
1708
1709 nx_decr_dev_ref_cnt(adapter);
1710
1711 clear_bit(__NX_RESETTING, &adapter->state);
1712}
1713
1714static int netxen_nic_attach_func(struct pci_dev *pdev)
1715{
1716 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1717 struct net_device *netdev = adapter->netdev;
1718 int err;
1719
1720 err = pci_enable_device(pdev);
1721 if (err)
1722 return err;
1723
1724 pci_set_power_state(pdev, PCI_D0);
1725 pci_set_master(pdev);
1726 pci_restore_state(pdev);
1727
1728 adapter->ahw.crb_win = -1;
1729 adapter->ahw.ocm_win = -1;
1730
1731 err = netxen_start_firmware(adapter);
1732 if (err) {
1733 dev_err(&pdev->dev, "failed to start firmware\n");
1734 return err;
1735 }
1736
1737 if (netif_running(netdev)) {
1738 err = netxen_nic_attach(adapter);
1739 if (err)
1740 goto err_out;
1741
1742 err = netxen_nic_up(adapter, netdev);
1743 if (err)
1744 goto err_out_detach;
1745
1746 netxen_restore_indev_addr(netdev, NETDEV_UP);
1747 }
1748
1749 netif_device_attach(netdev);
1750 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1751 return 0;
1752
1753err_out_detach:
1754 netxen_nic_detach(adapter);
1755err_out:
1756 nx_decr_dev_ref_cnt(adapter);
1757 return err;
1758}
1759
1760static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1761 pci_channel_state_t state)
1762{
1763 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1764
1765 if (state == pci_channel_io_perm_failure)
1766 return PCI_ERS_RESULT_DISCONNECT;
1767
1768 if (nx_dev_request_aer(adapter))
1769 return PCI_ERS_RESULT_RECOVERED;
1770
1771 netxen_nic_detach_func(adapter);
1772
1773 pci_disable_device(pdev);
1774
1775 return PCI_ERS_RESULT_NEED_RESET;
1776}
1777
1778static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1779{
1780 int err = 0;
1781
1782 err = netxen_nic_attach_func(pdev);
1783
1784 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1785}
1786
1787static void netxen_io_resume(struct pci_dev *pdev)
1788{
1789 pci_cleanup_aer_uncorrect_error_status(pdev);
1790}
1791
1792static void netxen_nic_shutdown(struct pci_dev *pdev)
1793{
1794 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1795
1796 netxen_nic_detach_func(adapter);
1797
1798 if (pci_save_state(pdev))
1799 return;
1800
1801 if (netxen_nic_wol_supported(adapter)) {
1802 pci_enable_wake(pdev, PCI_D3cold, 1);
1803 pci_enable_wake(pdev, PCI_D3hot, 1);
1804 }
1805
1806 pci_disable_device(pdev);
1807}
1808
1809#ifdef CONFIG_PM
1810static int
1811netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1812{
1813 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1814 int retval;
1815
1816 netxen_nic_detach_func(adapter);
1817
1818 retval = pci_save_state(pdev);
1819 if (retval)
1820 return retval;
1821
1822 if (netxen_nic_wol_supported(adapter)) {
1823 pci_enable_wake(pdev, PCI_D3cold, 1);
1824 pci_enable_wake(pdev, PCI_D3hot, 1);
1825 }
1826
1827 pci_disable_device(pdev);
1828 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1829
1830 return 0;
1831}
1832
1833static int
1834netxen_nic_resume(struct pci_dev *pdev)
1835{
1836 return netxen_nic_attach_func(pdev);
1837}
1838#endif
1839
1840static int netxen_nic_open(struct net_device *netdev)
1841{
1842 struct netxen_adapter *adapter = netdev_priv(netdev);
1843 int err = 0;
1844
1845 if (adapter->driver_mismatch)
1846 return -EIO;
1847
1848 err = netxen_nic_attach(adapter);
1849 if (err)
1850 return err;
1851
1852 err = __netxen_nic_up(adapter, netdev);
1853 if (err)
1854 goto err_out;
1855
1856 netif_start_queue(netdev);
1857
1858 return 0;
1859
1860err_out:
1861 netxen_nic_detach(adapter);
1862 return err;
1863}
1864
1865
1866
1867
1868static int netxen_nic_close(struct net_device *netdev)
1869{
1870 struct netxen_adapter *adapter = netdev_priv(netdev);
1871
1872 __netxen_nic_down(adapter, netdev);
1873 return 0;
1874}
1875
1876static void
1877netxen_tso_check(struct net_device *netdev,
1878 struct nx_host_tx_ring *tx_ring,
1879 struct cmd_desc_type0 *first_desc,
1880 struct sk_buff *skb)
1881{
1882 u8 opcode = TX_ETHER_PKT;
1883 __be16 protocol = skb->protocol;
1884 u16 flags = 0, vid = 0;
1885 u32 producer;
1886 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1887 struct cmd_desc_type0 *hwdesc;
1888 struct vlan_ethhdr *vh;
1889
1890 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1891
1892 vh = (struct vlan_ethhdr *)skb->data;
1893 protocol = vh->h_vlan_encapsulated_proto;
1894 flags = FLAGS_VLAN_TAGGED;
1895
1896 } else if (vlan_tx_tag_present(skb)) {
1897 flags = FLAGS_VLAN_OOB;
1898 vid = vlan_tx_tag_get(skb);
1899 netxen_set_tx_vlan_tci(first_desc, vid);
1900 vlan_oob = 1;
1901 }
1902
1903 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1904 skb_shinfo(skb)->gso_size > 0) {
1905
1906 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1907
1908 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1909 first_desc->total_hdr_length = hdr_len;
1910 if (vlan_oob) {
1911 first_desc->total_hdr_length += VLAN_HLEN;
1912 first_desc->tcp_hdr_offset = VLAN_HLEN;
1913 first_desc->ip_hdr_offset = VLAN_HLEN;
1914
1915 flags |= FLAGS_VLAN_TAGGED;
1916 }
1917
1918 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1919 TX_TCP_LSO6 : TX_TCP_LSO;
1920 tso = 1;
1921
1922 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1923 u8 l4proto;
1924
1925 if (protocol == cpu_to_be16(ETH_P_IP)) {
1926 l4proto = ip_hdr(skb)->protocol;
1927
1928 if (l4proto == IPPROTO_TCP)
1929 opcode = TX_TCP_PKT;
1930 else if(l4proto == IPPROTO_UDP)
1931 opcode = TX_UDP_PKT;
1932 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1933 l4proto = ipv6_hdr(skb)->nexthdr;
1934
1935 if (l4proto == IPPROTO_TCP)
1936 opcode = TX_TCPV6_PKT;
1937 else if(l4proto == IPPROTO_UDP)
1938 opcode = TX_UDPV6_PKT;
1939 }
1940 }
1941
1942 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1943 first_desc->ip_hdr_offset += skb_network_offset(skb);
1944 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1945
1946 if (!tso)
1947 return;
1948
1949
1950
1951
1952 producer = tx_ring->producer;
1953 copied = 0;
1954 offset = 2;
1955
1956 if (vlan_oob) {
1957
1958
1959 hwdesc = &tx_ring->desc_head[producer];
1960 tx_ring->cmd_buf_arr[producer].skb = NULL;
1961
1962 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1963 hdr_len + VLAN_HLEN);
1964
1965 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1966 skb_copy_from_linear_data(skb, vh, 12);
1967 vh->h_vlan_proto = htons(ETH_P_8021Q);
1968 vh->h_vlan_TCI = htons(vid);
1969 skb_copy_from_linear_data_offset(skb, 12,
1970 (char *)vh + 16, copy_len - 16);
1971
1972 copied = copy_len - VLAN_HLEN;
1973 offset = 0;
1974
1975 producer = get_next_index(producer, tx_ring->num_desc);
1976 }
1977
1978 while (copied < hdr_len) {
1979
1980 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1981 (hdr_len - copied));
1982
1983 hwdesc = &tx_ring->desc_head[producer];
1984 tx_ring->cmd_buf_arr[producer].skb = NULL;
1985
1986 skb_copy_from_linear_data_offset(skb, copied,
1987 (char *)hwdesc + offset, copy_len);
1988
1989 copied += copy_len;
1990 offset = 0;
1991
1992 producer = get_next_index(producer, tx_ring->num_desc);
1993 }
1994
1995 tx_ring->producer = producer;
1996 barrier();
1997}
1998
1999static int
2000netxen_map_tx_skb(struct pci_dev *pdev,
2001 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
2002{
2003 struct netxen_skb_frag *nf;
2004 struct skb_frag_struct *frag;
2005 int i, nr_frags;
2006 dma_addr_t map;
2007
2008 nr_frags = skb_shinfo(skb)->nr_frags;
2009 nf = &pbuf->frag_array[0];
2010
2011 map = pci_map_single(pdev, skb->data,
2012 skb_headlen(skb), PCI_DMA_TODEVICE);
2013 if (pci_dma_mapping_error(pdev, map))
2014 goto out_err;
2015
2016 nf->dma = map;
2017 nf->length = skb_headlen(skb);
2018
2019 for (i = 0; i < nr_frags; i++) {
2020 frag = &skb_shinfo(skb)->frags[i];
2021 nf = &pbuf->frag_array[i+1];
2022
2023 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
2024 DMA_TO_DEVICE);
2025 if (dma_mapping_error(&pdev->dev, map))
2026 goto unwind;
2027
2028 nf->dma = map;
2029 nf->length = skb_frag_size(frag);
2030 }
2031
2032 return 0;
2033
2034unwind:
2035 while (--i >= 0) {
2036 nf = &pbuf->frag_array[i+1];
2037 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
2038 nf->dma = 0ULL;
2039 }
2040
2041 nf = &pbuf->frag_array[0];
2042 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
2043 nf->dma = 0ULL;
2044
2045out_err:
2046 return -ENOMEM;
2047}
2048
2049static inline void
2050netxen_clear_cmddesc(u64 *desc)
2051{
2052 desc[0] = 0ULL;
2053 desc[2] = 0ULL;
2054}
2055
2056static netdev_tx_t
2057netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
2058{
2059 struct netxen_adapter *adapter = netdev_priv(netdev);
2060 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
2061 struct netxen_cmd_buffer *pbuf;
2062 struct netxen_skb_frag *buffrag;
2063 struct cmd_desc_type0 *hwdesc, *first_desc;
2064 struct pci_dev *pdev;
2065 int i, k;
2066 int delta = 0;
2067 struct skb_frag_struct *frag;
2068
2069 u32 producer;
2070 int frag_count, no_of_desc;
2071 u32 num_txd = tx_ring->num_desc;
2072
2073 frag_count = skb_shinfo(skb)->nr_frags + 1;
2074
2075
2076
2077
2078 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
2079
2080 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
2081 frag = &skb_shinfo(skb)->frags[i];
2082 delta += skb_frag_size(frag);
2083 }
2084
2085 if (!__pskb_pull_tail(skb, delta))
2086 goto drop_packet;
2087
2088 frag_count = 1 + skb_shinfo(skb)->nr_frags;
2089 }
2090
2091 no_of_desc = (frag_count + 3) >> 2;
2092
2093 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
2094 netif_stop_queue(netdev);
2095 smp_mb();
2096 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
2097 netif_start_queue(netdev);
2098 else
2099 return NETDEV_TX_BUSY;
2100 }
2101
2102 producer = tx_ring->producer;
2103 pbuf = &tx_ring->cmd_buf_arr[producer];
2104
2105 pdev = adapter->pdev;
2106
2107 if (netxen_map_tx_skb(pdev, skb, pbuf))
2108 goto drop_packet;
2109
2110 pbuf->skb = skb;
2111 pbuf->frag_count = frag_count;
2112
2113 first_desc = hwdesc = &tx_ring->desc_head[producer];
2114 netxen_clear_cmddesc((u64 *)hwdesc);
2115
2116 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
2117 netxen_set_tx_port(first_desc, adapter->portnum);
2118
2119 for (i = 0; i < frag_count; i++) {
2120
2121 k = i % 4;
2122
2123 if ((k == 0) && (i > 0)) {
2124
2125 producer = get_next_index(producer, num_txd);
2126 hwdesc = &tx_ring->desc_head[producer];
2127 netxen_clear_cmddesc((u64 *)hwdesc);
2128 tx_ring->cmd_buf_arr[producer].skb = NULL;
2129 }
2130
2131 buffrag = &pbuf->frag_array[i];
2132
2133 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2134 switch (k) {
2135 case 0:
2136 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2137 break;
2138 case 1:
2139 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2140 break;
2141 case 2:
2142 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2143 break;
2144 case 3:
2145 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2146 break;
2147 }
2148 }
2149
2150 tx_ring->producer = get_next_index(producer, num_txd);
2151
2152 netxen_tso_check(netdev, tx_ring, first_desc, skb);
2153
2154 adapter->stats.txbytes += skb->len;
2155 adapter->stats.xmitcalled++;
2156
2157 netxen_nic_update_cmd_producer(adapter, tx_ring);
2158
2159 return NETDEV_TX_OK;
2160
2161drop_packet:
2162 adapter->stats.txdropped++;
2163 dev_kfree_skb_any(skb);
2164 return NETDEV_TX_OK;
2165}
2166
2167static int netxen_nic_check_temp(struct netxen_adapter *adapter)
2168{
2169 struct net_device *netdev = adapter->netdev;
2170 uint32_t temp, temp_state, temp_val;
2171 int rv = 0;
2172
2173 temp = NXRD32(adapter, CRB_TEMP_STATE);
2174
2175 temp_state = nx_get_temp_state(temp);
2176 temp_val = nx_get_temp_val(temp);
2177
2178 if (temp_state == NX_TEMP_PANIC) {
2179 printk(KERN_ALERT
2180 "%s: Device temperature %d degrees C exceeds"
2181 " maximum allowed. Hardware has been shut down.\n",
2182 netdev->name, temp_val);
2183 rv = 1;
2184 } else if (temp_state == NX_TEMP_WARN) {
2185 if (adapter->temp == NX_TEMP_NORMAL) {
2186 printk(KERN_ALERT
2187 "%s: Device temperature %d degrees C "
2188 "exceeds operating range."
2189 " Immediate action needed.\n",
2190 netdev->name, temp_val);
2191 }
2192 } else {
2193 if (adapter->temp == NX_TEMP_WARN) {
2194 printk(KERN_INFO
2195 "%s: Device temperature is now %d degrees C"
2196 " in normal range.\n", netdev->name,
2197 temp_val);
2198 }
2199 }
2200 adapter->temp = temp_state;
2201 return rv;
2202}
2203
2204void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
2205{
2206 struct net_device *netdev = adapter->netdev;
2207
2208 if (adapter->ahw.linkup && !linkup) {
2209 printk(KERN_INFO "%s: %s NIC Link is down\n",
2210 netxen_nic_driver_name, netdev->name);
2211 adapter->ahw.linkup = 0;
2212 if (netif_running(netdev)) {
2213 netif_carrier_off(netdev);
2214 netif_stop_queue(netdev);
2215 }
2216 adapter->link_changed = !adapter->has_link_events;
2217 } else if (!adapter->ahw.linkup && linkup) {
2218 printk(KERN_INFO "%s: %s NIC Link is up\n",
2219 netxen_nic_driver_name, netdev->name);
2220 adapter->ahw.linkup = 1;
2221 if (netif_running(netdev)) {
2222 netif_carrier_on(netdev);
2223 netif_wake_queue(netdev);
2224 }
2225 adapter->link_changed = !adapter->has_link_events;
2226 }
2227}
2228
2229static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2230{
2231 u32 val, port, linkup;
2232
2233 port = adapter->physical_port;
2234
2235 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2236 val = NXRD32(adapter, CRB_XG_STATE_P3);
2237 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2238 linkup = (val == XG_LINK_UP_P3);
2239 } else {
2240 val = NXRD32(adapter, CRB_XG_STATE);
2241 val = (val >> port*8) & 0xff;
2242 linkup = (val == XG_LINK_UP);
2243 }
2244
2245 netxen_advert_link_change(adapter, linkup);
2246}
2247
2248static void netxen_tx_timeout(struct net_device *netdev)
2249{
2250 struct netxen_adapter *adapter = netdev_priv(netdev);
2251
2252 if (test_bit(__NX_RESETTING, &adapter->state))
2253 return;
2254
2255 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2256 schedule_work(&adapter->tx_timeout_task);
2257}
2258
2259static void netxen_tx_timeout_task(struct work_struct *work)
2260{
2261 struct netxen_adapter *adapter =
2262 container_of(work, struct netxen_adapter, tx_timeout_task);
2263
2264 if (!netif_running(adapter->netdev))
2265 return;
2266
2267 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
2268 return;
2269
2270 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2271 goto request_reset;
2272
2273 rtnl_lock();
2274 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2275
2276 netxen_napi_disable(adapter);
2277
2278 netxen_napi_enable(adapter);
2279
2280 netif_wake_queue(adapter->netdev);
2281
2282 clear_bit(__NX_RESETTING, &adapter->state);
2283 } else {
2284 clear_bit(__NX_RESETTING, &adapter->state);
2285 if (netxen_nic_reset_context(adapter)) {
2286 rtnl_unlock();
2287 goto request_reset;
2288 }
2289 }
2290 adapter->netdev->trans_start = jiffies;
2291 rtnl_unlock();
2292 return;
2293
2294request_reset:
2295 adapter->need_fw_reset = 1;
2296 clear_bit(__NX_RESETTING, &adapter->state);
2297}
2298
2299static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev,
2300 struct rtnl_link_stats64 *stats)
2301{
2302 struct netxen_adapter *adapter = netdev_priv(netdev);
2303
2304 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2305 stats->tx_packets = adapter->stats.xmitfinished;
2306 stats->rx_bytes = adapter->stats.rxbytes;
2307 stats->tx_bytes = adapter->stats.txbytes;
2308 stats->rx_dropped = adapter->stats.rxdropped;
2309 stats->tx_dropped = adapter->stats.txdropped;
2310
2311 return stats;
2312}
2313
2314static irqreturn_t netxen_intr(int irq, void *data)
2315{
2316 struct nx_host_sds_ring *sds_ring = data;
2317 struct netxen_adapter *adapter = sds_ring->adapter;
2318 u32 status = 0;
2319
2320 status = readl(adapter->isr_int_vec);
2321
2322 if (!(status & adapter->int_vec_bit))
2323 return IRQ_NONE;
2324
2325 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2326
2327 status = readl(adapter->crb_int_state_reg);
2328 if (!ISR_LEGACY_INT_TRIGGERED(status))
2329 return IRQ_NONE;
2330
2331 } else {
2332 unsigned long our_int = 0;
2333
2334 our_int = readl(adapter->crb_int_state_reg);
2335
2336
2337 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2338 return IRQ_NONE;
2339
2340
2341 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2342
2343
2344 netxen_nic_disable_int(sds_ring);
2345 }
2346
2347 writel(0xffffffff, adapter->tgt_status_reg);
2348
2349 readl(adapter->isr_int_vec);
2350 readl(adapter->isr_int_vec);
2351
2352 napi_schedule(&sds_ring->napi);
2353
2354 return IRQ_HANDLED;
2355}
2356
2357static irqreturn_t netxen_msi_intr(int irq, void *data)
2358{
2359 struct nx_host_sds_ring *sds_ring = data;
2360 struct netxen_adapter *adapter = sds_ring->adapter;
2361
2362
2363 writel(0xffffffff, adapter->tgt_status_reg);
2364
2365 napi_schedule(&sds_ring->napi);
2366 return IRQ_HANDLED;
2367}
2368
2369static irqreturn_t netxen_msix_intr(int irq, void *data)
2370{
2371 struct nx_host_sds_ring *sds_ring = data;
2372
2373 napi_schedule(&sds_ring->napi);
2374 return IRQ_HANDLED;
2375}
2376
2377static int netxen_nic_poll(struct napi_struct *napi, int budget)
2378{
2379 struct nx_host_sds_ring *sds_ring =
2380 container_of(napi, struct nx_host_sds_ring, napi);
2381
2382 struct netxen_adapter *adapter = sds_ring->adapter;
2383
2384 int tx_complete;
2385 int work_done;
2386
2387 tx_complete = netxen_process_cmd_ring(adapter);
2388
2389 work_done = netxen_process_rcv_ring(sds_ring, budget);
2390
2391 if (!tx_complete)
2392 work_done = budget;
2393
2394 if (work_done < budget) {
2395 napi_complete(&sds_ring->napi);
2396 if (test_bit(__NX_DEV_UP, &adapter->state))
2397 netxen_nic_enable_int(sds_ring);
2398 }
2399
2400 return work_done;
2401}
2402
2403#ifdef CONFIG_NET_POLL_CONTROLLER
2404static void netxen_nic_poll_controller(struct net_device *netdev)
2405{
2406 int ring;
2407 struct nx_host_sds_ring *sds_ring;
2408 struct netxen_adapter *adapter = netdev_priv(netdev);
2409 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2410
2411 disable_irq(adapter->irq);
2412 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2413 sds_ring = &recv_ctx->sds_rings[ring];
2414 netxen_intr(adapter->irq, sds_ring);
2415 }
2416 enable_irq(adapter->irq);
2417}
2418#endif
2419
2420static int
2421nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2422{
2423 int count;
2424 if (netxen_api_lock(adapter))
2425 return -EIO;
2426
2427 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2428
2429 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2430
2431 netxen_api_unlock(adapter);
2432 return count;
2433}
2434
2435static int
2436nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2437{
2438 int count, state;
2439 if (netxen_api_lock(adapter))
2440 return -EIO;
2441
2442 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2443 WARN_ON(count == 0);
2444
2445 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2446 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2447
2448 if (count == 0 && state != NX_DEV_FAILED)
2449 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2450
2451 netxen_api_unlock(adapter);
2452 return count;
2453}
2454
2455static int
2456nx_dev_request_aer(struct netxen_adapter *adapter)
2457{
2458 u32 state;
2459 int ret = -EINVAL;
2460
2461 if (netxen_api_lock(adapter))
2462 return ret;
2463
2464 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2465
2466 if (state == NX_DEV_NEED_AER)
2467 ret = 0;
2468 else if (state == NX_DEV_READY) {
2469 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2470 ret = 0;
2471 }
2472
2473 netxen_api_unlock(adapter);
2474 return ret;
2475}
2476
2477int
2478nx_dev_request_reset(struct netxen_adapter *adapter)
2479{
2480 u32 state;
2481 int ret = -EINVAL;
2482
2483 if (netxen_api_lock(adapter))
2484 return ret;
2485
2486 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2487
2488 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED)
2489 ret = 0;
2490 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
2491 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2492 adapter->flags |= NETXEN_FW_RESET_OWNER;
2493 ret = 0;
2494 }
2495
2496 netxen_api_unlock(adapter);
2497
2498 return ret;
2499}
2500
2501static int
2502netxen_can_start_firmware(struct netxen_adapter *adapter)
2503{
2504 int count;
2505 int can_start = 0;
2506
2507 if (netxen_api_lock(adapter)) {
2508 nx_incr_dev_ref_cnt(adapter);
2509 return -1;
2510 }
2511
2512 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2513
2514 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2515 count = 0;
2516
2517 if (count == 0) {
2518 can_start = 1;
2519 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2520 }
2521
2522 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2523
2524 netxen_api_unlock(adapter);
2525
2526 return can_start;
2527}
2528
2529static void
2530netxen_schedule_work(struct netxen_adapter *adapter,
2531 work_func_t func, int delay)
2532{
2533 INIT_DELAYED_WORK(&adapter->fw_work, func);
2534 schedule_delayed_work(&adapter->fw_work, delay);
2535}
2536
2537static void
2538netxen_cancel_fw_work(struct netxen_adapter *adapter)
2539{
2540 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2541 msleep(10);
2542
2543 cancel_delayed_work_sync(&adapter->fw_work);
2544}
2545
2546static void
2547netxen_attach_work(struct work_struct *work)
2548{
2549 struct netxen_adapter *adapter = container_of(work,
2550 struct netxen_adapter, fw_work.work);
2551 struct net_device *netdev = adapter->netdev;
2552 int err = 0;
2553
2554 if (netif_running(netdev)) {
2555 err = netxen_nic_attach(adapter);
2556 if (err)
2557 goto done;
2558
2559 err = netxen_nic_up(adapter, netdev);
2560 if (err) {
2561 netxen_nic_detach(adapter);
2562 goto done;
2563 }
2564
2565 netxen_restore_indev_addr(netdev, NETDEV_UP);
2566 }
2567
2568 netif_device_attach(netdev);
2569
2570done:
2571 adapter->fw_fail_cnt = 0;
2572 clear_bit(__NX_RESETTING, &adapter->state);
2573 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2574}
2575
2576static void
2577netxen_fwinit_work(struct work_struct *work)
2578{
2579 struct netxen_adapter *adapter = container_of(work,
2580 struct netxen_adapter, fw_work.work);
2581 int dev_state;
2582 int count;
2583 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2584 if (adapter->flags & NETXEN_FW_RESET_OWNER) {
2585 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2586 WARN_ON(count == 0);
2587 if (count == 1) {
2588 if (adapter->mdump.md_enabled) {
2589 rtnl_lock();
2590 netxen_dump_fw(adapter);
2591 rtnl_unlock();
2592 }
2593 adapter->flags &= ~NETXEN_FW_RESET_OWNER;
2594 if (netxen_api_lock(adapter)) {
2595 clear_bit(__NX_RESETTING, &adapter->state);
2596 NXWR32(adapter, NX_CRB_DEV_STATE,
2597 NX_DEV_FAILED);
2598 return;
2599 }
2600 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2601 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2602 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2603 dev_state = NX_DEV_COLD;
2604 netxen_api_unlock(adapter);
2605 }
2606 }
2607
2608 switch (dev_state) {
2609 case NX_DEV_COLD:
2610 case NX_DEV_READY:
2611 if (!netxen_start_firmware(adapter)) {
2612 netxen_schedule_work(adapter, netxen_attach_work, 0);
2613 return;
2614 }
2615 break;
2616
2617 case NX_DEV_NEED_RESET:
2618 case NX_DEV_INITALIZING:
2619 netxen_schedule_work(adapter,
2620 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2621 return;
2622
2623 case NX_DEV_FAILED:
2624 default:
2625 nx_incr_dev_ref_cnt(adapter);
2626 break;
2627 }
2628
2629 if (netxen_api_lock(adapter)) {
2630 clear_bit(__NX_RESETTING, &adapter->state);
2631 return;
2632 }
2633 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_FAILED);
2634 netxen_api_unlock(adapter);
2635 dev_err(&adapter->pdev->dev, "%s: Device initialization Failed\n",
2636 adapter->netdev->name);
2637
2638 clear_bit(__NX_RESETTING, &adapter->state);
2639}
2640
2641static void
2642netxen_detach_work(struct work_struct *work)
2643{
2644 struct netxen_adapter *adapter = container_of(work,
2645 struct netxen_adapter, fw_work.work);
2646 struct net_device *netdev = adapter->netdev;
2647 int ref_cnt = 0, delay;
2648 u32 status;
2649
2650 netif_device_detach(netdev);
2651
2652 netxen_nic_down(adapter, netdev);
2653
2654 rtnl_lock();
2655 netxen_nic_detach(adapter);
2656 rtnl_unlock();
2657
2658 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2659
2660 if (status & NX_RCODE_FATAL_ERROR)
2661 goto err_ret;
2662
2663 if (adapter->temp == NX_TEMP_PANIC)
2664 goto err_ret;
2665
2666 if (!(adapter->flags & NETXEN_FW_RESET_OWNER))
2667 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2668
2669 if (ref_cnt == -EIO)
2670 goto err_ret;
2671
2672 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2673
2674 adapter->fw_wait_cnt = 0;
2675 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2676
2677 return;
2678
2679err_ret:
2680 clear_bit(__NX_RESETTING, &adapter->state);
2681}
2682
2683static int
2684netxen_check_health(struct netxen_adapter *adapter)
2685{
2686 u32 state, heartbit;
2687 u32 peg_status;
2688 struct net_device *netdev = adapter->netdev;
2689
2690 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2691 if (state == NX_DEV_NEED_AER)
2692 return 0;
2693
2694 if (netxen_nic_check_temp(adapter))
2695 goto detach;
2696
2697 if (adapter->need_fw_reset) {
2698 if (nx_dev_request_reset(adapter))
2699 return 0;
2700 goto detach;
2701 }
2702
2703
2704
2705
2706
2707
2708 if (state == NX_DEV_NEED_RESET || state == NX_DEV_FAILED) {
2709 adapter->need_fw_reset = 1;
2710 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2711 goto detach;
2712 }
2713
2714 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2715 return 0;
2716
2717 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2718 if (heartbit != adapter->heartbit) {
2719 adapter->heartbit = heartbit;
2720 adapter->fw_fail_cnt = 0;
2721 if (adapter->need_fw_reset)
2722 goto detach;
2723 return 0;
2724 }
2725
2726 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2727 return 0;
2728
2729 if (nx_dev_request_reset(adapter))
2730 return 0;
2731
2732 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2733
2734 dev_err(&netdev->dev, "firmware hang detected\n");
2735 peg_status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2736 dev_err(&adapter->pdev->dev, "Dumping hw/fw registers\n"
2737 "PEG_HALT_STATUS1: 0x%x, PEG_HALT_STATUS2: 0x%x,\n"
2738 "PEG_NET_0_PC: 0x%x, PEG_NET_1_PC: 0x%x,\n"
2739 "PEG_NET_2_PC: 0x%x, PEG_NET_3_PC: 0x%x,\n"
2740 "PEG_NET_4_PC: 0x%x\n",
2741 peg_status,
2742 NXRD32(adapter, NETXEN_PEG_HALT_STATUS2),
2743 NXRD32(adapter, NETXEN_CRB_PEG_NET_0 + 0x3c),
2744 NXRD32(adapter, NETXEN_CRB_PEG_NET_1 + 0x3c),
2745 NXRD32(adapter, NETXEN_CRB_PEG_NET_2 + 0x3c),
2746 NXRD32(adapter, NETXEN_CRB_PEG_NET_3 + 0x3c),
2747 NXRD32(adapter, NETXEN_CRB_PEG_NET_4 + 0x3c));
2748 if (NX_FWERROR_PEGSTAT1(peg_status) == 0x67)
2749 dev_err(&adapter->pdev->dev,
2750 "Firmware aborted with error code 0x00006700. "
2751 "Device is being reset.\n");
2752detach:
2753 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2754 !test_and_set_bit(__NX_RESETTING, &adapter->state))
2755 netxen_schedule_work(adapter, netxen_detach_work, 0);
2756 return 1;
2757}
2758
2759static void
2760netxen_fw_poll_work(struct work_struct *work)
2761{
2762 struct netxen_adapter *adapter = container_of(work,
2763 struct netxen_adapter, fw_work.work);
2764
2765 if (test_bit(__NX_RESETTING, &adapter->state))
2766 goto reschedule;
2767
2768 if (test_bit(__NX_DEV_UP, &adapter->state) &&
2769 !(adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)) {
2770 if (!adapter->has_link_events) {
2771
2772 netxen_nic_handle_phy_intr(adapter);
2773
2774 if (adapter->link_changed)
2775 netxen_nic_set_link_parameters(adapter);
2776 }
2777 }
2778
2779 if (netxen_check_health(adapter))
2780 return;
2781
2782reschedule:
2783 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2784}
2785
2786static ssize_t
2787netxen_store_bridged_mode(struct device *dev,
2788 struct device_attribute *attr, const char *buf, size_t len)
2789{
2790 struct net_device *net = to_net_dev(dev);
2791 struct netxen_adapter *adapter = netdev_priv(net);
2792 unsigned long new;
2793 int ret = -EINVAL;
2794
2795 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2796 goto err_out;
2797
2798 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2799 goto err_out;
2800
2801 if (kstrtoul(buf, 2, &new))
2802 goto err_out;
2803
2804 if (!netxen_config_bridged_mode(adapter, !!new))
2805 ret = len;
2806
2807err_out:
2808 return ret;
2809}
2810
2811static ssize_t
2812netxen_show_bridged_mode(struct device *dev,
2813 struct device_attribute *attr, char *buf)
2814{
2815 struct net_device *net = to_net_dev(dev);
2816 struct netxen_adapter *adapter;
2817 int bridged_mode = 0;
2818
2819 adapter = netdev_priv(net);
2820
2821 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2822 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2823
2824 return sprintf(buf, "%d\n", bridged_mode);
2825}
2826
2827static struct device_attribute dev_attr_bridged_mode = {
2828 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2829 .show = netxen_show_bridged_mode,
2830 .store = netxen_store_bridged_mode,
2831};
2832
2833static ssize_t
2834netxen_store_diag_mode(struct device *dev,
2835 struct device_attribute *attr, const char *buf, size_t len)
2836{
2837 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2838 unsigned long new;
2839
2840 if (kstrtoul(buf, 2, &new))
2841 return -EINVAL;
2842
2843 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2844 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2845
2846 return len;
2847}
2848
2849static ssize_t
2850netxen_show_diag_mode(struct device *dev,
2851 struct device_attribute *attr, char *buf)
2852{
2853 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2854
2855 return sprintf(buf, "%d\n",
2856 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2857}
2858
2859static struct device_attribute dev_attr_diag_mode = {
2860 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2861 .show = netxen_show_diag_mode,
2862 .store = netxen_store_diag_mode,
2863};
2864
2865static int
2866netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2867 loff_t offset, size_t size)
2868{
2869 size_t crb_size = 4;
2870
2871 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2872 return -EIO;
2873
2874 if (offset < NETXEN_PCI_CRBSPACE) {
2875 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2876 return -EINVAL;
2877
2878 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2879 NETXEN_PCI_CAMQM_2M_END))
2880 crb_size = 8;
2881 else
2882 return -EINVAL;
2883 }
2884
2885 if ((size != crb_size) || (offset & (crb_size-1)))
2886 return -EINVAL;
2887
2888 return 0;
2889}
2890
2891static ssize_t
2892netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2893 struct bin_attribute *attr,
2894 char *buf, loff_t offset, size_t size)
2895{
2896 struct device *dev = container_of(kobj, struct device, kobj);
2897 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2898 u32 data;
2899 u64 qmdata;
2900 int ret;
2901
2902 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2903 if (ret != 0)
2904 return ret;
2905
2906 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2907 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2908 NETXEN_PCI_CAMQM_2M_END)) {
2909 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2910 memcpy(buf, &qmdata, size);
2911 } else {
2912 data = NXRD32(adapter, offset);
2913 memcpy(buf, &data, size);
2914 }
2915
2916 return size;
2917}
2918
2919static ssize_t
2920netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2921 struct bin_attribute *attr,
2922 char *buf, loff_t offset, size_t size)
2923{
2924 struct device *dev = container_of(kobj, struct device, kobj);
2925 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2926 u32 data;
2927 u64 qmdata;
2928 int ret;
2929
2930 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2931 if (ret != 0)
2932 return ret;
2933
2934 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2935 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2936 NETXEN_PCI_CAMQM_2M_END)) {
2937 memcpy(&qmdata, buf, size);
2938 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2939 } else {
2940 memcpy(&data, buf, size);
2941 NXWR32(adapter, offset, data);
2942 }
2943
2944 return size;
2945}
2946
2947static int
2948netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2949 loff_t offset, size_t size)
2950{
2951 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2952 return -EIO;
2953
2954 if ((size != 8) || (offset & 0x7))
2955 return -EIO;
2956
2957 return 0;
2958}
2959
2960static ssize_t
2961netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2962 struct bin_attribute *attr,
2963 char *buf, loff_t offset, size_t size)
2964{
2965 struct device *dev = container_of(kobj, struct device, kobj);
2966 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2967 u64 data;
2968 int ret;
2969
2970 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2971 if (ret != 0)
2972 return ret;
2973
2974 if (adapter->pci_mem_read(adapter, offset, &data))
2975 return -EIO;
2976
2977 memcpy(buf, &data, size);
2978
2979 return size;
2980}
2981
2982static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
2983 struct bin_attribute *attr, char *buf,
2984 loff_t offset, size_t size)
2985{
2986 struct device *dev = container_of(kobj, struct device, kobj);
2987 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2988 u64 data;
2989 int ret;
2990
2991 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2992 if (ret != 0)
2993 return ret;
2994
2995 memcpy(&data, buf, size);
2996
2997 if (adapter->pci_mem_write(adapter, offset, data))
2998 return -EIO;
2999
3000 return size;
3001}
3002
3003
3004static struct bin_attribute bin_attr_crb = {
3005 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
3006 .size = 0,
3007 .read = netxen_sysfs_read_crb,
3008 .write = netxen_sysfs_write_crb,
3009};
3010
3011static struct bin_attribute bin_attr_mem = {
3012 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
3013 .size = 0,
3014 .read = netxen_sysfs_read_mem,
3015 .write = netxen_sysfs_write_mem,
3016};
3017
3018static ssize_t
3019netxen_sysfs_read_dimm(struct file *filp, struct kobject *kobj,
3020 struct bin_attribute *attr,
3021 char *buf, loff_t offset, size_t size)
3022{
3023 struct device *dev = container_of(kobj, struct device, kobj);
3024 struct netxen_adapter *adapter = dev_get_drvdata(dev);
3025 struct net_device *netdev = adapter->netdev;
3026 struct netxen_dimm_cfg dimm;
3027 u8 dw, rows, cols, banks, ranks;
3028 u32 val;
3029
3030 if (size != sizeof(struct netxen_dimm_cfg)) {
3031 netdev_err(netdev, "Invalid size\n");
3032 return -1;
3033 }
3034
3035 memset(&dimm, 0, sizeof(struct netxen_dimm_cfg));
3036 val = NXRD32(adapter, NETXEN_DIMM_CAPABILITY);
3037
3038
3039 if (val & NETXEN_DIMM_VALID_FLAG) {
3040 netdev_err(netdev, "Invalid DIMM flag\n");
3041 dimm.presence = 0xff;
3042 goto out;
3043 }
3044
3045 rows = NETXEN_DIMM_NUMROWS(val);
3046 cols = NETXEN_DIMM_NUMCOLS(val);
3047 ranks = NETXEN_DIMM_NUMRANKS(val);
3048 banks = NETXEN_DIMM_NUMBANKS(val);
3049 dw = NETXEN_DIMM_DATAWIDTH(val);
3050
3051 dimm.presence = (val & NETXEN_DIMM_PRESENT);
3052
3053
3054 if (!dimm.presence) {
3055 netdev_err(netdev, "DIMM not present\n");
3056 goto out;
3057 }
3058
3059 dimm.dimm_type = NETXEN_DIMM_TYPE(val);
3060
3061 switch (dimm.dimm_type) {
3062 case NETXEN_DIMM_TYPE_RDIMM:
3063 case NETXEN_DIMM_TYPE_UDIMM:
3064 case NETXEN_DIMM_TYPE_SO_DIMM:
3065 case NETXEN_DIMM_TYPE_Micro_DIMM:
3066 case NETXEN_DIMM_TYPE_Mini_RDIMM:
3067 case NETXEN_DIMM_TYPE_Mini_UDIMM:
3068 break;
3069 default:
3070 netdev_err(netdev, "Invalid DIMM type %x\n", dimm.dimm_type);
3071 goto out;
3072 }
3073
3074 if (val & NETXEN_DIMM_MEMTYPE_DDR2_SDRAM)
3075 dimm.mem_type = NETXEN_DIMM_MEM_DDR2_SDRAM;
3076 else
3077 dimm.mem_type = NETXEN_DIMM_MEMTYPE(val);
3078
3079 if (val & NETXEN_DIMM_SIZE) {
3080 dimm.size = NETXEN_DIMM_STD_MEM_SIZE;
3081 goto out;
3082 }
3083
3084 if (!rows) {
3085 netdev_err(netdev, "Invalid no of rows %x\n", rows);
3086 goto out;
3087 }
3088
3089 if (!cols) {
3090 netdev_err(netdev, "Invalid no of columns %x\n", cols);
3091 goto out;
3092 }
3093
3094 if (!banks) {
3095 netdev_err(netdev, "Invalid no of banks %x\n", banks);
3096 goto out;
3097 }
3098
3099 ranks += 1;
3100
3101 switch (dw) {
3102 case 0x0:
3103 dw = 32;
3104 break;
3105 case 0x1:
3106 dw = 33;
3107 break;
3108 case 0x2:
3109 dw = 36;
3110 break;
3111 case 0x3:
3112 dw = 64;
3113 break;
3114 case 0x4:
3115 dw = 72;
3116 break;
3117 case 0x5:
3118 dw = 80;
3119 break;
3120 case 0x6:
3121 dw = 128;
3122 break;
3123 case 0x7:
3124 dw = 144;
3125 break;
3126 default:
3127 netdev_err(netdev, "Invalid data-width %x\n", dw);
3128 goto out;
3129 }
3130
3131 dimm.size = ((1 << rows) * (1 << cols) * dw * banks * ranks) / 8;
3132
3133 dimm.size = (dimm.size) / 0x100000;
3134out:
3135 memcpy(buf, &dimm, sizeof(struct netxen_dimm_cfg));
3136 return sizeof(struct netxen_dimm_cfg);
3137
3138}
3139
3140static struct bin_attribute bin_attr_dimm = {
3141 .attr = { .name = "dimm", .mode = (S_IRUGO | S_IWUSR) },
3142 .size = 0,
3143 .read = netxen_sysfs_read_dimm,
3144};
3145
3146
3147static void
3148netxen_create_sysfs_entries(struct netxen_adapter *adapter)
3149{
3150 struct device *dev = &adapter->pdev->dev;
3151
3152 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
3153
3154 if (device_create_file(dev, &dev_attr_bridged_mode)) {
3155 dev_warn(dev,
3156 "failed to create bridged_mode sysfs entry\n");
3157 }
3158 }
3159}
3160
3161static void
3162netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
3163{
3164 struct device *dev = &adapter->pdev->dev;
3165
3166 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
3167 device_remove_file(dev, &dev_attr_bridged_mode);
3168}
3169
3170static void
3171netxen_create_diag_entries(struct netxen_adapter *adapter)
3172{
3173 struct pci_dev *pdev = adapter->pdev;
3174 struct device *dev;
3175
3176 dev = &pdev->dev;
3177 if (device_create_file(dev, &dev_attr_diag_mode))
3178 dev_info(dev, "failed to create diag_mode sysfs entry\n");
3179 if (device_create_bin_file(dev, &bin_attr_crb))
3180 dev_info(dev, "failed to create crb sysfs entry\n");
3181 if (device_create_bin_file(dev, &bin_attr_mem))
3182 dev_info(dev, "failed to create mem sysfs entry\n");
3183 if (device_create_bin_file(dev, &bin_attr_dimm))
3184 dev_info(dev, "failed to create dimm sysfs entry\n");
3185}
3186
3187
3188static void
3189netxen_remove_diag_entries(struct netxen_adapter *adapter)
3190{
3191 struct pci_dev *pdev = adapter->pdev;
3192 struct device *dev = &pdev->dev;
3193
3194 device_remove_file(dev, &dev_attr_diag_mode);
3195 device_remove_bin_file(dev, &bin_attr_crb);
3196 device_remove_bin_file(dev, &bin_attr_mem);
3197 device_remove_bin_file(dev, &bin_attr_dimm);
3198}
3199
3200#ifdef CONFIG_INET
3201
3202#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
3203
3204static int
3205netxen_destip_supported(struct netxen_adapter *adapter)
3206{
3207 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
3208 return 0;
3209
3210 if (adapter->ahw.cut_through)
3211 return 0;
3212
3213 return 1;
3214}
3215
3216static void
3217netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
3218{
3219 struct nx_ip_list *cur, *tmp_cur;
3220
3221 list_for_each_entry_safe(cur, tmp_cur, &adapter->ip_list, list) {
3222 if (master) {
3223 if (cur->master) {
3224 netxen_config_ipaddr(adapter, cur->ip_addr,
3225 NX_IP_DOWN);
3226 list_del(&cur->list);
3227 kfree(cur);
3228 }
3229 } else {
3230 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
3231 list_del(&cur->list);
3232 kfree(cur);
3233 }
3234 }
3235}
3236
3237static bool
3238netxen_list_config_ip(struct netxen_adapter *adapter,
3239 struct in_ifaddr *ifa, unsigned long event)
3240{
3241 struct net_device *dev;
3242 struct nx_ip_list *cur, *tmp_cur;
3243 struct list_head *head;
3244 bool ret = false;
3245
3246 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3247
3248 if (dev == NULL)
3249 goto out;
3250
3251 switch (event) {
3252 case NX_IP_UP:
3253 list_for_each(head, &adapter->ip_list) {
3254 cur = list_entry(head, struct nx_ip_list, list);
3255
3256 if (cur->ip_addr == ifa->ifa_address)
3257 goto out;
3258 }
3259
3260 cur = kzalloc(sizeof(struct nx_ip_list), GFP_ATOMIC);
3261 if (cur == NULL)
3262 goto out;
3263 if (dev->priv_flags & IFF_802_1Q_VLAN)
3264 dev = vlan_dev_real_dev(dev);
3265 cur->master = !!netif_is_bond_master(dev);
3266 cur->ip_addr = ifa->ifa_address;
3267 list_add_tail(&cur->list, &adapter->ip_list);
3268 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
3269 ret = true;
3270 break;
3271 case NX_IP_DOWN:
3272 list_for_each_entry_safe(cur, tmp_cur,
3273 &adapter->ip_list, list) {
3274 if (cur->ip_addr == ifa->ifa_address) {
3275 list_del(&cur->list);
3276 kfree(cur);
3277 netxen_config_ipaddr(adapter, ifa->ifa_address,
3278 NX_IP_DOWN);
3279 ret = true;
3280 break;
3281 }
3282 }
3283 }
3284out:
3285 return ret;
3286}
3287
3288static void
3289netxen_config_indev_addr(struct netxen_adapter *adapter,
3290 struct net_device *dev, unsigned long event)
3291{
3292 struct in_device *indev;
3293
3294 if (!netxen_destip_supported(adapter))
3295 return;
3296
3297 indev = in_dev_get(dev);
3298 if (!indev)
3299 return;
3300
3301 for_ifa(indev) {
3302 switch (event) {
3303 case NETDEV_UP:
3304 netxen_list_config_ip(adapter, ifa, NX_IP_UP);
3305 break;
3306 case NETDEV_DOWN:
3307 netxen_list_config_ip(adapter, ifa, NX_IP_DOWN);
3308 break;
3309 default:
3310 break;
3311 }
3312 } endfor_ifa(indev);
3313
3314 in_dev_put(indev);
3315}
3316
3317static void
3318netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)
3319
3320{
3321 struct netxen_adapter *adapter = netdev_priv(netdev);
3322 struct nx_ip_list *pos, *tmp_pos;
3323 unsigned long ip_event;
3324
3325 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3326 netxen_config_indev_addr(adapter, netdev, event);
3327
3328 list_for_each_entry_safe(pos, tmp_pos, &adapter->ip_list, list) {
3329 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
3330 }
3331}
3332
3333static inline bool
3334netxen_config_checkdev(struct net_device *dev)
3335{
3336 struct netxen_adapter *adapter;
3337
3338 if (!is_netxen_netdev(dev))
3339 return false;
3340 adapter = netdev_priv(dev);
3341 if (!adapter)
3342 return false;
3343 if (!netxen_destip_supported(adapter))
3344 return false;
3345 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3346 return false;
3347
3348 return true;
3349}
3350
3351
3352
3353
3354
3355
3356static void netxen_config_master(struct net_device *dev, unsigned long event)
3357{
3358 struct net_device *master, *slave;
3359 struct netxen_adapter *adapter = netdev_priv(dev);
3360
3361 rcu_read_lock();
3362 master = netdev_master_upper_dev_get_rcu(dev);
3363
3364
3365
3366
3367
3368
3369 if (master && netif_is_bond_master(master) &&
3370 !netif_is_bond_slave(dev)) {
3371 netxen_config_indev_addr(adapter, master, event);
3372 for_each_netdev_rcu(&init_net, slave)
3373 if (slave->priv_flags & IFF_802_1Q_VLAN &&
3374 vlan_dev_real_dev(slave) == master)
3375 netxen_config_indev_addr(adapter, slave, event);
3376 }
3377 rcu_read_unlock();
3378
3379
3380
3381
3382
3383 if (!master && dev->priv_flags & IFF_BONDING)
3384 netxen_free_ip_list(adapter, true);
3385}
3386
3387static int netxen_netdev_event(struct notifier_block *this,
3388 unsigned long event, void *ptr)
3389{
3390 struct netxen_adapter *adapter;
3391 struct net_device *dev = netdev_notifier_info_to_dev(ptr);
3392 struct net_device *orig_dev = dev;
3393 struct net_device *slave;
3394
3395recheck:
3396 if (dev == NULL)
3397 goto done;
3398
3399 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3400 dev = vlan_dev_real_dev(dev);
3401 goto recheck;
3402 }
3403 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3404
3405 if (netif_is_bond_master(dev)) {
3406 rcu_read_lock();
3407 for_each_netdev_in_bond_rcu(dev, slave) {
3408 if (!netxen_config_checkdev(slave))
3409 continue;
3410 adapter = netdev_priv(slave);
3411 netxen_config_indev_addr(adapter,
3412 orig_dev, event);
3413 }
3414 rcu_read_unlock();
3415 } else {
3416 if (!netxen_config_checkdev(dev))
3417 goto done;
3418 adapter = netdev_priv(dev);
3419
3420 if (orig_dev == dev)
3421 netxen_config_master(dev, event);
3422 netxen_config_indev_addr(adapter, orig_dev, event);
3423 }
3424 }
3425done:
3426 return NOTIFY_DONE;
3427}
3428
3429static int
3430netxen_inetaddr_event(struct notifier_block *this,
3431 unsigned long event, void *ptr)
3432{
3433 struct netxen_adapter *adapter;
3434 struct net_device *dev, *slave;
3435 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3436 unsigned long ip_event;
3437
3438 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3439 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3440recheck:
3441 if (dev == NULL)
3442 goto done;
3443
3444 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3445 dev = vlan_dev_real_dev(dev);
3446 goto recheck;
3447 }
3448 if (event == NETDEV_UP || event == NETDEV_DOWN) {
3449
3450 if (netif_is_bond_master(dev)) {
3451 rcu_read_lock();
3452 for_each_netdev_in_bond_rcu(dev, slave) {
3453 if (!netxen_config_checkdev(slave))
3454 continue;
3455 adapter = netdev_priv(slave);
3456 netxen_list_config_ip(adapter, ifa, ip_event);
3457 }
3458 rcu_read_unlock();
3459 } else {
3460 if (!netxen_config_checkdev(dev))
3461 goto done;
3462 adapter = netdev_priv(dev);
3463 netxen_list_config_ip(adapter, ifa, ip_event);
3464 }
3465 }
3466done:
3467 return NOTIFY_DONE;
3468}
3469
3470static struct notifier_block netxen_netdev_cb = {
3471 .notifier_call = netxen_netdev_event,
3472};
3473
3474static struct notifier_block netxen_inetaddr_cb = {
3475 .notifier_call = netxen_inetaddr_event,
3476};
3477#else
3478static void
3479netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
3480{ }
3481static void
3482netxen_free_ip_list(struct netxen_adapter *adapter, bool master)
3483{ }
3484#endif
3485
3486static const struct pci_error_handlers netxen_err_handler = {
3487 .error_detected = netxen_io_error_detected,
3488 .slot_reset = netxen_io_slot_reset,
3489 .resume = netxen_io_resume,
3490};
3491
3492static struct pci_driver netxen_driver = {
3493 .name = netxen_nic_driver_name,
3494 .id_table = netxen_pci_tbl,
3495 .probe = netxen_nic_probe,
3496 .remove = netxen_nic_remove,
3497#ifdef CONFIG_PM
3498 .suspend = netxen_nic_suspend,
3499 .resume = netxen_nic_resume,
3500#endif
3501 .shutdown = netxen_nic_shutdown,
3502 .err_handler = &netxen_err_handler
3503};
3504
3505static int __init netxen_init_module(void)
3506{
3507 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
3508
3509#ifdef CONFIG_INET
3510 register_netdevice_notifier(&netxen_netdev_cb);
3511 register_inetaddr_notifier(&netxen_inetaddr_cb);
3512#endif
3513 return pci_register_driver(&netxen_driver);
3514}
3515
3516module_init(netxen_init_module);
3517
3518static void __exit netxen_exit_module(void)
3519{
3520 pci_unregister_driver(&netxen_driver);
3521
3522#ifdef CONFIG_INET
3523 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
3524 unregister_netdevice_notifier(&netxen_netdev_cb);
3525#endif
3526}
3527
3528module_exit(netxen_exit_module);
3529
