2 * Copyright (C) 2003 - 2009 NetXen, Inc.
3 * Copyright (C) 2009 - QLogic Corporation.
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
21 * The full GNU General Public License is included in this distribution
22 * in the file called "COPYING".
26 #include <linux/vmalloc.h>
27 #include <linux/interrupt.h>
28 #include "netxen_nic_hw.h"
30 #include "netxen_nic.h"
32 #include <linux/dma-mapping.h>
33 #include <linux/if_vlan.h>
35 #include <linux/ipv6.h>
36 #include <linux/inetdevice.h>
37 #include <linux/sysfs.h>
38 #include <linux/aer.h>
40 MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Converged Ethernet Driver");
41 MODULE_LICENSE("GPL");
42 MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
43 MODULE_FIRMWARE(NX_P2_MN_ROMIMAGE_NAME);
44 MODULE_FIRMWARE(NX_P3_CT_ROMIMAGE_NAME);
45 MODULE_FIRMWARE(NX_P3_MN_ROMIMAGE_NAME);
46 MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
48 char netxen_nic_driver_name[] = "netxen_nic";
49 static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
50 NETXEN_NIC_LINUX_VERSIONID;
52 static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
54 /* Default to restricted 1G auto-neg mode */
55 static int wol_port_mode = 5;
57 static int use_msi = 1;
59 static int use_msi_x = 1;
61 static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
62 module_param(auto_fw_reset, int, 0644);
63 MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
65 static int __devinit netxen_nic_probe(struct pci_dev *pdev,
66 const struct pci_device_id *ent);
67 static void __devexit netxen_nic_remove(struct pci_dev *pdev);
68 static int netxen_nic_open(struct net_device *netdev);
69 static int netxen_nic_close(struct net_device *netdev);
70 static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
72 static void netxen_tx_timeout(struct net_device *netdev);
73 static void netxen_tx_timeout_task(struct work_struct *work);
74 static void netxen_fw_poll_work(struct work_struct *work);
75 static void netxen_schedule_work(struct netxen_adapter *adapter,
76 work_func_t func, int delay);
77 static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
78 static int netxen_nic_poll(struct napi_struct *napi, int budget);
79 #ifdef CONFIG_NET_POLL_CONTROLLER
80 static void netxen_nic_poll_controller(struct net_device *netdev);
83 static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
84 static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
85 static void netxen_create_diag_entries(struct netxen_adapter *adapter);
86 static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
88 static int nx_dev_request_aer(struct netxen_adapter *adapter);
89 static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
90 static int netxen_can_start_firmware(struct netxen_adapter *adapter);
92 static irqreturn_t netxen_intr(int irq, void *data);
93 static irqreturn_t netxen_msi_intr(int irq, void *data);
94 static irqreturn_t netxen_msix_intr(int irq, void *data);
96 static void netxen_config_indev_addr(struct net_device *dev, unsigned long);
98 /* PCI Device ID Table */
99 #define ENTRY(device) \
100 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
101 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
103 static DEFINE_PCI_DEVICE_TABLE(netxen_pci_tbl) = {
104 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
105 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
106 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
107 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
108 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
109 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
110 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
111 ENTRY(PCI_DEVICE_ID_NX3031),
115 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
117 static uint32_t crb_cmd_producer[4] = {
118 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
119 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
123 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
124 struct nx_host_tx_ring *tx_ring)
126 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
128 if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) {
129 netif_stop_queue(adapter->netdev);
134 static uint32_t crb_cmd_consumer[4] = {
135 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
136 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
140 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
141 struct nx_host_tx_ring *tx_ring)
143 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
146 static uint32_t msi_tgt_status[8] = {
147 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
148 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
149 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
150 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
153 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
155 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
157 struct netxen_adapter *adapter = sds_ring->adapter;
159 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
162 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
164 struct netxen_adapter *adapter = sds_ring->adapter;
166 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
168 if (!NETXEN_IS_MSI_FAMILY(adapter))
169 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
173 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
175 int size = sizeof(struct nx_host_sds_ring) * count;
177 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
179 return (recv_ctx->sds_rings == NULL);
183 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
185 if (recv_ctx->sds_rings != NULL)
186 kfree(recv_ctx->sds_rings);
188 recv_ctx->sds_rings = NULL;
192 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
195 struct nx_host_sds_ring *sds_ring;
196 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
198 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
201 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
202 sds_ring = &recv_ctx->sds_rings[ring];
203 netif_napi_add(netdev, &sds_ring->napi,
204 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
211 netxen_napi_del(struct netxen_adapter *adapter)
214 struct nx_host_sds_ring *sds_ring;
215 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
217 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
218 sds_ring = &recv_ctx->sds_rings[ring];
219 netif_napi_del(&sds_ring->napi);
222 netxen_free_sds_rings(&adapter->recv_ctx);
226 netxen_napi_enable(struct netxen_adapter *adapter)
229 struct nx_host_sds_ring *sds_ring;
230 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
232 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
233 sds_ring = &recv_ctx->sds_rings[ring];
234 napi_enable(&sds_ring->napi);
235 netxen_nic_enable_int(sds_ring);
240 netxen_napi_disable(struct netxen_adapter *adapter)
243 struct nx_host_sds_ring *sds_ring;
244 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
246 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
247 sds_ring = &recv_ctx->sds_rings[ring];
248 netxen_nic_disable_int(sds_ring);
249 napi_synchronize(&sds_ring->napi);
250 napi_disable(&sds_ring->napi);
254 static int nx_set_dma_mask(struct netxen_adapter *adapter)
256 struct pci_dev *pdev = adapter->pdev;
257 uint64_t mask, cmask;
259 adapter->pci_using_dac = 0;
261 mask = DMA_BIT_MASK(32);
262 cmask = DMA_BIT_MASK(32);
264 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
266 mask = DMA_BIT_MASK(35);
269 mask = DMA_BIT_MASK(39);
273 if (pci_set_dma_mask(pdev, mask) == 0 &&
274 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
275 adapter->pci_using_dac = 1;
282 /* Update addressable range if firmware supports it */
284 nx_update_dma_mask(struct netxen_adapter *adapter)
286 int change, shift, err;
287 uint64_t mask, old_mask, old_cmask;
288 struct pci_dev *pdev = adapter->pdev;
292 shift = NXRD32(adapter, CRB_DMA_SHIFT);
296 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
298 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
302 old_mask = pdev->dma_mask;
303 old_cmask = pdev->dev.coherent_dma_mask;
305 mask = DMA_BIT_MASK(32+shift);
307 err = pci_set_dma_mask(pdev, mask);
311 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
313 err = pci_set_consistent_dma_mask(pdev, mask);
317 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
323 pci_set_dma_mask(pdev, old_mask);
324 pci_set_consistent_dma_mask(pdev, old_cmask);
329 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
333 if (first_boot == 0x55555555) {
334 /* This is the first boot after power up */
335 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
337 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
340 /* PCI bus master workaround */
341 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
342 if (!(first_boot & 0x4)) {
344 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
345 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
348 /* This is the first boot after power up */
349 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
350 if (first_boot != 0x80000f) {
351 /* clear the register for future unloads/loads */
352 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
356 /* Start P2 boot loader */
357 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
358 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
362 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
364 if (++timeout > 5000)
367 } while (val == NETXEN_BDINFO_MAGIC);
372 static void netxen_set_port_mode(struct netxen_adapter *adapter)
376 val = adapter->ahw.board_type;
377 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
378 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
379 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
380 data = NETXEN_PORT_MODE_802_3_AP;
381 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
382 } else if (port_mode == NETXEN_PORT_MODE_XG) {
383 data = NETXEN_PORT_MODE_XG;
384 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
385 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
386 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
387 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
388 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
389 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
390 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
392 data = NETXEN_PORT_MODE_AUTO_NEG;
393 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
396 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
397 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
398 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
399 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
400 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
402 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
406 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
411 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
413 pci_read_config_dword(pdev, pos, &control);
415 control |= PCI_MSIX_FLAGS_ENABLE;
418 pci_write_config_dword(pdev, pos, control);
422 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
426 for (i = 0; i < count; i++)
427 adapter->msix_entries[i].entry = i;
431 netxen_read_mac_addr(struct netxen_adapter *adapter)
436 struct net_device *netdev = adapter->netdev;
437 struct pci_dev *pdev = adapter->pdev;
439 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
440 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
443 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
447 p = (unsigned char *)&mac_addr;
448 for (i = 0; i < 6; i++)
449 netdev->dev_addr[i] = *(p + 5 - i);
451 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
452 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
454 /* set station address */
456 if (!is_valid_ether_addr(netdev->perm_addr))
457 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
462 int netxen_nic_set_mac(struct net_device *netdev, void *p)
464 struct netxen_adapter *adapter = netdev_priv(netdev);
465 struct sockaddr *addr = p;
467 if (!is_valid_ether_addr(addr->sa_data))
470 if (netif_running(netdev)) {
471 netif_device_detach(netdev);
472 netxen_napi_disable(adapter);
475 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
476 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
477 adapter->macaddr_set(adapter, addr->sa_data);
479 if (netif_running(netdev)) {
480 netif_device_attach(netdev);
481 netxen_napi_enable(adapter);
486 static void netxen_set_multicast_list(struct net_device *dev)
488 struct netxen_adapter *adapter = netdev_priv(dev);
490 adapter->set_multi(dev);
493 static const struct net_device_ops netxen_netdev_ops = {
494 .ndo_open = netxen_nic_open,
495 .ndo_stop = netxen_nic_close,
496 .ndo_start_xmit = netxen_nic_xmit_frame,
497 .ndo_get_stats = netxen_nic_get_stats,
498 .ndo_validate_addr = eth_validate_addr,
499 .ndo_set_multicast_list = netxen_set_multicast_list,
500 .ndo_set_mac_address = netxen_nic_set_mac,
501 .ndo_change_mtu = netxen_nic_change_mtu,
502 .ndo_tx_timeout = netxen_tx_timeout,
503 #ifdef CONFIG_NET_POLL_CONTROLLER
504 .ndo_poll_controller = netxen_nic_poll_controller,
509 netxen_setup_intr(struct netxen_adapter *adapter)
511 struct netxen_legacy_intr_set *legacy_intrp;
512 struct pci_dev *pdev = adapter->pdev;
515 if (adapter->rss_supported) {
516 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
517 MSIX_ENTRIES_PER_ADAPTER : 2;
521 adapter->max_sds_rings = 1;
523 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
525 if (adapter->ahw.revision_id >= NX_P3_B0)
526 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
528 legacy_intrp = &legacy_intr[0];
530 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
531 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
532 legacy_intrp->tgt_status_reg);
533 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
534 legacy_intrp->tgt_mask_reg);
535 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
536 legacy_intrp->pci_int_reg);
537 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
539 if (adapter->ahw.revision_id >= NX_P3_B1)
540 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
543 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
546 netxen_set_msix_bit(pdev, 0);
548 if (adapter->msix_supported) {
550 netxen_init_msix_entries(adapter, num_msix);
551 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
553 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
554 netxen_set_msix_bit(pdev, 1);
556 if (adapter->rss_supported)
557 adapter->max_sds_rings = num_msix;
559 dev_info(&pdev->dev, "using msi-x interrupts\n");
564 pci_disable_msix(pdev);
566 /* fall through for msi */
569 if (use_msi && !pci_enable_msi(pdev)) {
570 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
571 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
572 msi_tgt_status[adapter->ahw.pci_func]);
573 dev_info(&pdev->dev, "using msi interrupts\n");
574 adapter->msix_entries[0].vector = pdev->irq;
578 dev_info(&pdev->dev, "using legacy interrupts\n");
579 adapter->msix_entries[0].vector = pdev->irq;
583 netxen_teardown_intr(struct netxen_adapter *adapter)
585 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
586 pci_disable_msix(adapter->pdev);
587 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
588 pci_disable_msi(adapter->pdev);
592 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
594 if (adapter->ahw.db_base != NULL)
595 iounmap(adapter->ahw.db_base);
596 if (adapter->ahw.pci_base0 != NULL)
597 iounmap(adapter->ahw.pci_base0);
598 if (adapter->ahw.pci_base1 != NULL)
599 iounmap(adapter->ahw.pci_base1);
600 if (adapter->ahw.pci_base2 != NULL)
601 iounmap(adapter->ahw.pci_base2);
605 netxen_setup_pci_map(struct netxen_adapter *adapter)
607 void __iomem *db_ptr = NULL;
609 resource_size_t mem_base, db_base;
610 unsigned long mem_len, db_len = 0;
612 struct pci_dev *pdev = adapter->pdev;
613 int pci_func = adapter->ahw.pci_func;
614 struct netxen_hardware_context *ahw = &adapter->ahw;
619 * Set the CRB window to invalid. If any register in window 0 is
620 * accessed it should set the window to 0 and then reset it to 1.
622 adapter->ahw.crb_win = -1;
623 adapter->ahw.ocm_win = -1;
625 /* remap phys address */
626 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
627 mem_len = pci_resource_len(pdev, 0);
629 /* 128 Meg of memory */
630 if (mem_len == NETXEN_PCI_128MB_SIZE) {
632 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
633 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
634 SECOND_PAGE_GROUP_SIZE);
635 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
636 THIRD_PAGE_GROUP_SIZE);
637 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
638 ahw->pci_base2 == NULL) {
639 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
644 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
646 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
648 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
649 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
650 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
651 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
652 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
657 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
659 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
660 if (ahw->pci_base0 == NULL) {
661 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
664 ahw->pci_len0 = mem_len;
669 netxen_setup_hwops(adapter);
671 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
673 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
674 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
675 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
677 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
678 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
679 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
682 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
685 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
686 db_len = pci_resource_len(pdev, 4);
689 printk(KERN_ERR "%s: doorbell is disabled\n",
690 netxen_nic_driver_name);
695 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
697 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
698 netxen_nic_driver_name);
704 adapter->ahw.db_base = db_ptr;
705 adapter->ahw.db_len = db_len;
709 netxen_cleanup_pci_map(adapter);
714 netxen_check_options(struct netxen_adapter *adapter)
716 u32 fw_major, fw_minor, fw_build;
717 char brd_name[NETXEN_MAX_SHORT_NAME];
721 struct pci_dev *pdev = adapter->pdev;
723 adapter->driver_mismatch = 0;
725 ptr32 = (int *)&serial_num;
726 offset = NX_FW_SERIAL_NUM_OFFSET;
727 for (i = 0; i < 8; i++) {
728 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
729 dev_err(&pdev->dev, "error reading board info\n");
730 adapter->driver_mismatch = 1;
733 ptr32[i] = cpu_to_le32(val);
734 offset += sizeof(u32);
737 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
738 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
739 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
741 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
743 if (adapter->portnum == 0) {
744 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
746 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
747 module_name(THIS_MODULE),
748 brd_name, serial_num, adapter->ahw.revision_id);
751 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
752 adapter->driver_mismatch = 1;
753 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
754 fw_major, fw_minor, fw_build);
758 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
759 i = NXRD32(adapter, NETXEN_SRE_MISC);
760 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
763 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
764 fw_major, fw_minor, fw_build,
765 adapter->ahw.cut_through ? "cut-through" : "legacy");
767 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
768 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
770 adapter->flags &= ~NETXEN_NIC_LRO_ENABLED;
772 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
773 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
774 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
775 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
776 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
777 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
780 adapter->msix_supported = 0;
781 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
782 adapter->msix_supported = !!use_msi_x;
783 adapter->rss_supported = !!use_msi_x;
784 } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) {
785 switch (adapter->ahw.board_type) {
786 case NETXEN_BRDTYPE_P2_SB31_10G:
787 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
788 adapter->msix_supported = !!use_msi_x;
789 adapter->rss_supported = !!use_msi_x;
796 adapter->num_txd = MAX_CMD_DESCRIPTORS;
798 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
799 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
800 adapter->max_rds_rings = 3;
802 adapter->num_lro_rxd = 0;
803 adapter->max_rds_rings = 2;
808 netxen_start_firmware(struct netxen_adapter *adapter)
810 int val, err, first_boot;
811 struct pci_dev *pdev = adapter->pdev;
813 /* required for NX2031 dummy dma */
814 err = nx_set_dma_mask(adapter);
818 if (!netxen_can_start_firmware(adapter))
821 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
823 err = netxen_check_hw_init(adapter, first_boot);
825 dev_err(&pdev->dev, "error in init HW init sequence\n");
829 netxen_request_firmware(adapter);
831 err = netxen_need_fw_reset(adapter);
837 if (first_boot != 0x55555555) {
838 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
839 netxen_pinit_from_rom(adapter);
843 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
844 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
845 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
847 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
848 netxen_set_port_mode(adapter);
850 err = netxen_load_firmware(adapter);
854 netxen_release_firmware(adapter);
856 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
858 /* Initialize multicast addr pool owners */
860 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
862 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
866 err = netxen_init_dummy_dma(adapter);
871 * Tell the hardware our version number.
873 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
874 | ((_NETXEN_NIC_LINUX_MINOR << 8))
875 | (_NETXEN_NIC_LINUX_SUBVERSION);
876 NXWR32(adapter, CRB_DRIVER_VERSION, val);
879 /* Handshake with the card before we register the devices. */
880 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
882 netxen_free_dummy_dma(adapter);
886 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
888 nx_update_dma_mask(adapter);
890 netxen_check_options(adapter);
892 adapter->need_fw_reset = 0;
894 /* fall through and release firmware */
897 netxen_release_firmware(adapter);
902 netxen_nic_request_irq(struct netxen_adapter *adapter)
904 irq_handler_t handler;
905 struct nx_host_sds_ring *sds_ring;
908 unsigned long flags = IRQF_SAMPLE_RANDOM;
909 struct net_device *netdev = adapter->netdev;
910 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
912 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
913 handler = netxen_msix_intr;
914 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
915 handler = netxen_msi_intr;
917 flags |= IRQF_SHARED;
918 handler = netxen_intr;
920 adapter->irq = netdev->irq;
922 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
923 sds_ring = &recv_ctx->sds_rings[ring];
924 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
925 err = request_irq(sds_ring->irq, handler,
926 flags, sds_ring->name, sds_ring);
935 netxen_nic_free_irq(struct netxen_adapter *adapter)
938 struct nx_host_sds_ring *sds_ring;
940 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
942 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
943 sds_ring = &recv_ctx->sds_rings[ring];
944 free_irq(sds_ring->irq, sds_ring);
949 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
951 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
952 adapter->coal.normal.data.rx_time_us =
953 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
954 adapter->coal.normal.data.rx_packets =
955 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
956 adapter->coal.normal.data.tx_time_us =
957 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
958 adapter->coal.normal.data.tx_packets =
959 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
964 __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
968 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
971 err = adapter->init_port(adapter, adapter->physical_port);
973 printk(KERN_ERR "%s: Failed to initialize port %d\n",
974 netxen_nic_driver_name, adapter->portnum);
977 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
978 adapter->macaddr_set(adapter, adapter->mac_addr);
980 adapter->set_multi(netdev);
981 adapter->set_mtu(adapter, netdev->mtu);
983 adapter->ahw.linkup = 0;
985 if (adapter->max_sds_rings > 1)
986 netxen_config_rss(adapter, 1);
988 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
989 netxen_config_intr_coalesce(adapter);
991 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
992 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
994 netxen_napi_enable(adapter);
996 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
997 netxen_linkevent_request(adapter, 1);
999 netxen_nic_set_link_parameters(adapter);
1001 set_bit(__NX_DEV_UP, &adapter->state);
1005 /* Usage: During resume and firmware recovery module.*/
1008 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1013 if (netif_running(netdev))
1014 err = __netxen_nic_up(adapter, netdev);
1020 /* with rtnl_lock */
1022 __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1024 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1027 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1031 spin_lock(&adapter->tx_clean_lock);
1032 netif_carrier_off(netdev);
1033 netif_tx_disable(netdev);
1035 if (adapter->stop_port)
1036 adapter->stop_port(adapter);
1038 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1039 netxen_p3_free_mac_list(adapter);
1041 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1043 netxen_napi_disable(adapter);
1045 netxen_release_tx_buffers(adapter);
1046 spin_unlock(&adapter->tx_clean_lock);
1049 /* Usage: During suspend and firmware recovery module */
1052 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1055 if (netif_running(netdev))
1056 __netxen_nic_down(adapter, netdev);
1062 netxen_nic_attach(struct netxen_adapter *adapter)
1064 struct net_device *netdev = adapter->netdev;
1065 struct pci_dev *pdev = adapter->pdev;
1067 struct nx_host_rds_ring *rds_ring;
1068 struct nx_host_tx_ring *tx_ring;
1070 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1073 err = netxen_init_firmware(adapter);
1077 err = netxen_napi_add(adapter, netdev);
1081 err = netxen_alloc_sw_resources(adapter);
1083 printk(KERN_ERR "%s: Error in setting sw resources\n",
1088 err = netxen_alloc_hw_resources(adapter);
1090 printk(KERN_ERR "%s: Error in setting hw resources\n",
1092 goto err_out_free_sw;
1095 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1096 tx_ring = adapter->tx_ring;
1097 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1098 crb_cmd_producer[adapter->portnum]);
1099 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1100 crb_cmd_consumer[adapter->portnum]);
1102 tx_ring->producer = 0;
1103 tx_ring->sw_consumer = 0;
1105 netxen_nic_update_cmd_producer(adapter, tx_ring);
1106 netxen_nic_update_cmd_consumer(adapter, tx_ring);
1109 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1110 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1111 netxen_post_rx_buffers(adapter, ring, rds_ring);
1114 err = netxen_nic_request_irq(adapter);
1116 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1118 goto err_out_free_rxbuf;
1121 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1122 netxen_nic_init_coalesce_defaults(adapter);
1124 netxen_create_sysfs_entries(adapter);
1126 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1130 netxen_release_rx_buffers(adapter);
1131 netxen_free_hw_resources(adapter);
1133 netxen_free_sw_resources(adapter);
1138 netxen_nic_detach(struct netxen_adapter *adapter)
1140 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1143 netxen_remove_sysfs_entries(adapter);
1145 netxen_free_hw_resources(adapter);
1146 netxen_release_rx_buffers(adapter);
1147 netxen_nic_free_irq(adapter);
1148 netxen_napi_del(adapter);
1149 netxen_free_sw_resources(adapter);
1155 netxen_nic_reset_context(struct netxen_adapter *adapter)
1158 struct net_device *netdev = adapter->netdev;
1160 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1163 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1165 netif_device_detach(netdev);
1167 if (netif_running(netdev))
1168 __netxen_nic_down(adapter, netdev);
1170 netxen_nic_detach(adapter);
1172 if (netif_running(netdev)) {
1173 err = netxen_nic_attach(adapter);
1175 err = __netxen_nic_up(adapter, netdev);
1181 netif_device_attach(netdev);
1185 clear_bit(__NX_RESETTING, &adapter->state);
1190 netxen_setup_netdev(struct netxen_adapter *adapter,
1191 struct net_device *netdev)
1194 struct pci_dev *pdev = adapter->pdev;
1196 adapter->rx_csum = 1;
1197 adapter->mc_enabled = 0;
1198 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1199 adapter->max_mc_count = 38;
1201 adapter->max_mc_count = 16;
1203 netdev->netdev_ops = &netxen_netdev_ops;
1204 netdev->watchdog_timeo = 2*HZ;
1206 netxen_nic_change_mtu(netdev, netdev->mtu);
1208 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1210 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1211 netdev->features |= (NETIF_F_GRO);
1212 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1214 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1215 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1216 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1219 if (adapter->pci_using_dac) {
1220 netdev->features |= NETIF_F_HIGHDMA;
1221 netdev->vlan_features |= NETIF_F_HIGHDMA;
1224 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1225 netdev->features |= (NETIF_F_HW_VLAN_TX);
1227 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1228 netdev->features |= NETIF_F_LRO;
1230 netdev->irq = adapter->msix_entries[0].vector;
1232 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1234 if (netxen_read_mac_addr(adapter))
1235 dev_warn(&pdev->dev, "failed to read mac addr\n");
1237 netif_carrier_off(netdev);
1238 netif_stop_queue(netdev);
1240 err = register_netdev(netdev);
1242 dev_err(&pdev->dev, "failed to register net device\n");
1249 static int __devinit
1250 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1252 struct net_device *netdev = NULL;
1253 struct netxen_adapter *adapter = NULL;
1255 int pci_func_id = PCI_FUNC(pdev->devfn);
1256 uint8_t revision_id;
1258 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1259 pr_warning("%s: chip revisions between 0x%x-0x%x "
1260 "will not be enabled.\n",
1261 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
1265 if ((err = pci_enable_device(pdev)))
1268 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1270 goto err_out_disable_pdev;
1273 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1274 goto err_out_disable_pdev;
1276 if (NX_IS_REVISION_P3(pdev->revision))
1277 pci_enable_pcie_error_reporting(pdev);
1279 pci_set_master(pdev);
1281 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1283 dev_err(&pdev->dev, "failed to allocate net_device\n");
1285 goto err_out_free_res;
1288 SET_NETDEV_DEV(netdev, &pdev->dev);
1290 adapter = netdev_priv(netdev);
1291 adapter->netdev = netdev;
1292 adapter->pdev = pdev;
1293 adapter->ahw.pci_func = pci_func_id;
1295 revision_id = pdev->revision;
1296 adapter->ahw.revision_id = revision_id;
1298 rwlock_init(&adapter->ahw.crb_lock);
1299 spin_lock_init(&adapter->ahw.mem_lock);
1301 spin_lock_init(&adapter->tx_clean_lock);
1302 INIT_LIST_HEAD(&adapter->mac_list);
1304 err = netxen_setup_pci_map(adapter);
1306 goto err_out_free_netdev;
1308 /* This will be reset for mezz cards */
1309 adapter->portnum = pci_func_id;
1311 err = netxen_nic_get_board_info(adapter);
1313 dev_err(&pdev->dev, "Error getting board config info.\n");
1314 goto err_out_iounmap;
1317 /* Mezz cards have PCI function 0,2,3 enabled */
1318 switch (adapter->ahw.board_type) {
1319 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1320 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1321 if (pci_func_id >= 2)
1322 adapter->portnum = pci_func_id - 2;
1328 err = netxen_start_firmware(adapter);
1330 goto err_out_decr_ref;
1333 * See if the firmware gave us a virtual-physical port mapping.
1335 adapter->physical_port = adapter->portnum;
1336 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1337 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1338 if (i != 0x55555555)
1339 adapter->physical_port = i;
1342 netxen_nic_clear_stats(adapter);
1344 netxen_setup_intr(adapter);
1346 err = netxen_setup_netdev(adapter, netdev);
1348 goto err_out_disable_msi;
1350 pci_set_drvdata(pdev, adapter);
1352 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1354 switch (adapter->ahw.port_type) {
1355 case NETXEN_NIC_GBE:
1356 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1357 adapter->netdev->name);
1359 case NETXEN_NIC_XGBE:
1360 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1361 adapter->netdev->name);
1365 netxen_create_diag_entries(adapter);
1369 err_out_disable_msi:
1370 netxen_teardown_intr(adapter);
1372 netxen_free_dummy_dma(adapter);
1375 nx_decr_dev_ref_cnt(adapter);
1378 netxen_cleanup_pci_map(adapter);
1380 err_out_free_netdev:
1381 free_netdev(netdev);
1384 pci_release_regions(pdev);
1386 err_out_disable_pdev:
1387 pci_set_drvdata(pdev, NULL);
1388 pci_disable_device(pdev);
1392 static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1394 struct netxen_adapter *adapter;
1395 struct net_device *netdev;
1397 adapter = pci_get_drvdata(pdev);
1398 if (adapter == NULL)
1401 netdev = adapter->netdev;
1403 netxen_cancel_fw_work(adapter);
1405 unregister_netdev(netdev);
1407 cancel_work_sync(&adapter->tx_timeout_task);
1409 netxen_nic_detach(adapter);
1411 nx_decr_dev_ref_cnt(adapter);
1413 if (adapter->portnum == 0)
1414 netxen_free_dummy_dma(adapter);
1416 clear_bit(__NX_RESETTING, &adapter->state);
1418 netxen_teardown_intr(adapter);
1420 netxen_remove_diag_entries(adapter);
1422 netxen_cleanup_pci_map(adapter);
1424 netxen_release_firmware(adapter);
1426 if (NX_IS_REVISION_P3(pdev->revision))
1427 pci_disable_pcie_error_reporting(pdev);
1429 pci_release_regions(pdev);
1430 pci_disable_device(pdev);
1431 pci_set_drvdata(pdev, NULL);
1433 free_netdev(netdev);
1436 static void netxen_nic_detach_func(struct netxen_adapter *adapter)
1438 struct net_device *netdev = adapter->netdev;
1440 netif_device_detach(netdev);
1442 netxen_cancel_fw_work(adapter);
1444 if (netif_running(netdev))
1445 netxen_nic_down(adapter, netdev);
1447 cancel_work_sync(&adapter->tx_timeout_task);
1449 netxen_nic_detach(adapter);
1451 if (adapter->portnum == 0)
1452 netxen_free_dummy_dma(adapter);
1454 nx_decr_dev_ref_cnt(adapter);
1456 clear_bit(__NX_RESETTING, &adapter->state);
1459 static int netxen_nic_attach_func(struct pci_dev *pdev)
1461 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1462 struct net_device *netdev = adapter->netdev;
1465 err = pci_enable_device(pdev);
1469 pci_set_power_state(pdev, PCI_D0);
1470 pci_set_master(pdev);
1471 pci_restore_state(pdev);
1473 adapter->ahw.crb_win = -1;
1474 adapter->ahw.ocm_win = -1;
1476 err = netxen_start_firmware(adapter);
1478 dev_err(&pdev->dev, "failed to start firmware\n");
1482 if (netif_running(netdev)) {
1483 err = netxen_nic_attach(adapter);
1487 err = netxen_nic_up(adapter, netdev);
1489 goto err_out_detach;
1491 netxen_config_indev_addr(netdev, NETDEV_UP);
1494 netif_device_attach(netdev);
1495 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1499 netxen_nic_detach(adapter);
1501 nx_decr_dev_ref_cnt(adapter);
1505 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1506 pci_channel_state_t state)
1508 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1510 if (state == pci_channel_io_perm_failure)
1511 return PCI_ERS_RESULT_DISCONNECT;
1513 if (nx_dev_request_aer(adapter))
1514 return PCI_ERS_RESULT_RECOVERED;
1516 netxen_nic_detach_func(adapter);
1518 pci_disable_device(pdev);
1520 return PCI_ERS_RESULT_NEED_RESET;
1523 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1527 err = netxen_nic_attach_func(pdev);
1529 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1532 static void netxen_io_resume(struct pci_dev *pdev)
1534 pci_cleanup_aer_uncorrect_error_status(pdev);
1537 static void netxen_nic_shutdown(struct pci_dev *pdev)
1539 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1541 netxen_nic_detach_func(adapter);
1543 if (pci_save_state(pdev))
1546 if (netxen_nic_wol_supported(adapter)) {
1547 pci_enable_wake(pdev, PCI_D3cold, 1);
1548 pci_enable_wake(pdev, PCI_D3hot, 1);
1551 pci_disable_device(pdev);
1556 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1558 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1561 netxen_nic_detach_func(adapter);
1563 retval = pci_save_state(pdev);
1567 if (netxen_nic_wol_supported(adapter)) {
1568 pci_enable_wake(pdev, PCI_D3cold, 1);
1569 pci_enable_wake(pdev, PCI_D3hot, 1);
1572 pci_disable_device(pdev);
1573 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1579 netxen_nic_resume(struct pci_dev *pdev)
1581 return netxen_nic_attach_func(pdev);
1585 static int netxen_nic_open(struct net_device *netdev)
1587 struct netxen_adapter *adapter = netdev_priv(netdev);
1590 if (adapter->driver_mismatch)
1593 err = netxen_nic_attach(adapter);
1597 err = __netxen_nic_up(adapter, netdev);
1601 netif_start_queue(netdev);
1606 netxen_nic_detach(adapter);
1611 * netxen_nic_close - Disables a network interface entry point
1613 static int netxen_nic_close(struct net_device *netdev)
1615 struct netxen_adapter *adapter = netdev_priv(netdev);
1617 __netxen_nic_down(adapter, netdev);
1622 netxen_tso_check(struct net_device *netdev,
1623 struct nx_host_tx_ring *tx_ring,
1624 struct cmd_desc_type0 *first_desc,
1625 struct sk_buff *skb)
1627 u8 opcode = TX_ETHER_PKT;
1628 __be16 protocol = skb->protocol;
1629 u16 flags = 0, vid = 0;
1631 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1632 struct cmd_desc_type0 *hwdesc;
1633 struct vlan_ethhdr *vh;
1635 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1637 vh = (struct vlan_ethhdr *)skb->data;
1638 protocol = vh->h_vlan_encapsulated_proto;
1639 flags = FLAGS_VLAN_TAGGED;
1641 } else if (vlan_tx_tag_present(skb)) {
1643 flags = FLAGS_VLAN_OOB;
1644 vid = vlan_tx_tag_get(skb);
1645 netxen_set_tx_vlan_tci(first_desc, vid);
1649 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1650 skb_shinfo(skb)->gso_size > 0) {
1652 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1654 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1655 first_desc->total_hdr_length = hdr_len;
1657 first_desc->total_hdr_length += VLAN_HLEN;
1658 first_desc->tcp_hdr_offset = VLAN_HLEN;
1659 first_desc->ip_hdr_offset = VLAN_HLEN;
1660 /* Only in case of TSO on vlan device */
1661 flags |= FLAGS_VLAN_TAGGED;
1664 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1665 TX_TCP_LSO6 : TX_TCP_LSO;
1668 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1671 if (protocol == cpu_to_be16(ETH_P_IP)) {
1672 l4proto = ip_hdr(skb)->protocol;
1674 if (l4proto == IPPROTO_TCP)
1675 opcode = TX_TCP_PKT;
1676 else if(l4proto == IPPROTO_UDP)
1677 opcode = TX_UDP_PKT;
1678 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1679 l4proto = ipv6_hdr(skb)->nexthdr;
1681 if (l4proto == IPPROTO_TCP)
1682 opcode = TX_TCPV6_PKT;
1683 else if(l4proto == IPPROTO_UDP)
1684 opcode = TX_UDPV6_PKT;
1688 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1689 first_desc->ip_hdr_offset += skb_network_offset(skb);
1690 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1695 /* For LSO, we need to copy the MAC/IP/TCP headers into
1696 * the descriptor ring
1698 producer = tx_ring->producer;
1703 /* Create a TSO vlan header template for firmware */
1705 hwdesc = &tx_ring->desc_head[producer];
1706 tx_ring->cmd_buf_arr[producer].skb = NULL;
1708 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1709 hdr_len + VLAN_HLEN);
1711 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1712 skb_copy_from_linear_data(skb, vh, 12);
1713 vh->h_vlan_proto = htons(ETH_P_8021Q);
1714 vh->h_vlan_TCI = htons(vid);
1715 skb_copy_from_linear_data_offset(skb, 12,
1716 (char *)vh + 16, copy_len - 16);
1718 copied = copy_len - VLAN_HLEN;
1721 producer = get_next_index(producer, tx_ring->num_desc);
1724 while (copied < hdr_len) {
1726 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1727 (hdr_len - copied));
1729 hwdesc = &tx_ring->desc_head[producer];
1730 tx_ring->cmd_buf_arr[producer].skb = NULL;
1732 skb_copy_from_linear_data_offset(skb, copied,
1733 (char *)hwdesc + offset, copy_len);
1738 producer = get_next_index(producer, tx_ring->num_desc);
1741 tx_ring->producer = producer;
1746 netxen_map_tx_skb(struct pci_dev *pdev,
1747 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1749 struct netxen_skb_frag *nf;
1750 struct skb_frag_struct *frag;
1754 nr_frags = skb_shinfo(skb)->nr_frags;
1755 nf = &pbuf->frag_array[0];
1757 map = pci_map_single(pdev, skb->data,
1758 skb_headlen(skb), PCI_DMA_TODEVICE);
1759 if (pci_dma_mapping_error(pdev, map))
1763 nf->length = skb_headlen(skb);
1765 for (i = 0; i < nr_frags; i++) {
1766 frag = &skb_shinfo(skb)->frags[i];
1767 nf = &pbuf->frag_array[i+1];
1769 map = pci_map_page(pdev, frag->page, frag->page_offset,
1770 frag->size, PCI_DMA_TODEVICE);
1771 if (pci_dma_mapping_error(pdev, map))
1775 nf->length = frag->size;
1782 nf = &pbuf->frag_array[i+1];
1783 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1786 nf = &pbuf->frag_array[0];
1787 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1794 netxen_clear_cmddesc(u64 *desc)
1801 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1803 struct netxen_adapter *adapter = netdev_priv(netdev);
1804 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1805 struct netxen_cmd_buffer *pbuf;
1806 struct netxen_skb_frag *buffrag;
1807 struct cmd_desc_type0 *hwdesc, *first_desc;
1808 struct pci_dev *pdev;
1812 int frag_count, no_of_desc;
1813 u32 num_txd = tx_ring->num_desc;
1815 frag_count = skb_shinfo(skb)->nr_frags + 1;
1817 /* 4 fragments per cmd des */
1818 no_of_desc = (frag_count + 3) >> 2;
1820 if (unlikely(no_of_desc + 2 > netxen_tx_avail(tx_ring))) {
1821 netif_stop_queue(netdev);
1822 return NETDEV_TX_BUSY;
1825 producer = tx_ring->producer;
1826 pbuf = &tx_ring->cmd_buf_arr[producer];
1828 pdev = adapter->pdev;
1830 if (netxen_map_tx_skb(pdev, skb, pbuf))
1834 pbuf->frag_count = frag_count;
1836 first_desc = hwdesc = &tx_ring->desc_head[producer];
1837 netxen_clear_cmddesc((u64 *)hwdesc);
1839 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1840 netxen_set_tx_port(first_desc, adapter->portnum);
1842 for (i = 0; i < frag_count; i++) {
1846 if ((k == 0) && (i > 0)) {
1847 /* move to next desc.*/
1848 producer = get_next_index(producer, num_txd);
1849 hwdesc = &tx_ring->desc_head[producer];
1850 netxen_clear_cmddesc((u64 *)hwdesc);
1851 tx_ring->cmd_buf_arr[producer].skb = NULL;
1854 buffrag = &pbuf->frag_array[i];
1856 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
1859 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1862 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
1865 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
1868 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
1873 tx_ring->producer = get_next_index(producer, num_txd);
1875 netxen_tso_check(netdev, tx_ring, first_desc, skb);
1877 netxen_nic_update_cmd_producer(adapter, tx_ring);
1879 adapter->stats.txbytes += skb->len;
1880 adapter->stats.xmitcalled++;
1882 return NETDEV_TX_OK;
1885 adapter->stats.txdropped++;
1886 dev_kfree_skb_any(skb);
1887 return NETDEV_TX_OK;
1890 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1892 struct net_device *netdev = adapter->netdev;
1893 uint32_t temp, temp_state, temp_val;
1896 temp = NXRD32(adapter, CRB_TEMP_STATE);
1898 temp_state = nx_get_temp_state(temp);
1899 temp_val = nx_get_temp_val(temp);
1901 if (temp_state == NX_TEMP_PANIC) {
1903 "%s: Device temperature %d degrees C exceeds"
1904 " maximum allowed. Hardware has been shut down.\n",
1905 netdev->name, temp_val);
1907 } else if (temp_state == NX_TEMP_WARN) {
1908 if (adapter->temp == NX_TEMP_NORMAL) {
1910 "%s: Device temperature %d degrees C "
1911 "exceeds operating range."
1912 " Immediate action needed.\n",
1913 netdev->name, temp_val);
1916 if (adapter->temp == NX_TEMP_WARN) {
1918 "%s: Device temperature is now %d degrees C"
1919 " in normal range.\n", netdev->name,
1923 adapter->temp = temp_state;
1927 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
1929 struct net_device *netdev = adapter->netdev;
1931 if (adapter->ahw.linkup && !linkup) {
1932 printk(KERN_INFO "%s: %s NIC Link is down\n",
1933 netxen_nic_driver_name, netdev->name);
1934 adapter->ahw.linkup = 0;
1935 if (netif_running(netdev)) {
1936 netif_carrier_off(netdev);
1937 netif_stop_queue(netdev);
1939 adapter->link_changed = !adapter->has_link_events;
1940 } else if (!adapter->ahw.linkup && linkup) {
1941 printk(KERN_INFO "%s: %s NIC Link is up\n",
1942 netxen_nic_driver_name, netdev->name);
1943 adapter->ahw.linkup = 1;
1944 if (netif_running(netdev)) {
1945 netif_carrier_on(netdev);
1946 netif_wake_queue(netdev);
1948 adapter->link_changed = !adapter->has_link_events;
1952 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1954 u32 val, port, linkup;
1956 port = adapter->physical_port;
1958 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1959 val = NXRD32(adapter, CRB_XG_STATE_P3);
1960 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1961 linkup = (val == XG_LINK_UP_P3);
1963 val = NXRD32(adapter, CRB_XG_STATE);
1964 val = (val >> port*8) & 0xff;
1965 linkup = (val == XG_LINK_UP);
1968 netxen_advert_link_change(adapter, linkup);
1971 static void netxen_tx_timeout(struct net_device *netdev)
1973 struct netxen_adapter *adapter = netdev_priv(netdev);
1975 if (test_bit(__NX_RESETTING, &adapter->state))
1978 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
1979 schedule_work(&adapter->tx_timeout_task);
1982 static void netxen_tx_timeout_task(struct work_struct *work)
1984 struct netxen_adapter *adapter =
1985 container_of(work, struct netxen_adapter, tx_timeout_task);
1987 if (!netif_running(adapter->netdev))
1990 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1993 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
1996 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1997 /* try to scrub interrupt */
1998 netxen_napi_disable(adapter);
2000 adapter->netdev->trans_start = jiffies;
2002 netxen_napi_enable(adapter);
2004 netif_wake_queue(adapter->netdev);
2006 clear_bit(__NX_RESETTING, &adapter->state);
2009 clear_bit(__NX_RESETTING, &adapter->state);
2010 if (!netxen_nic_reset_context(adapter)) {
2011 adapter->netdev->trans_start = jiffies;
2015 /* context reset failed, fall through for fw reset */
2019 adapter->need_fw_reset = 1;
2020 clear_bit(__NX_RESETTING, &adapter->state);
2023 struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
2025 struct netxen_adapter *adapter = netdev_priv(netdev);
2026 struct net_device_stats *stats = &netdev->stats;
2028 memset(stats, 0, sizeof(*stats));
2030 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2031 stats->tx_packets = adapter->stats.xmitfinished;
2032 stats->rx_bytes = adapter->stats.rxbytes;
2033 stats->tx_bytes = adapter->stats.txbytes;
2034 stats->rx_dropped = adapter->stats.rxdropped;
2035 stats->tx_dropped = adapter->stats.txdropped;
2040 static irqreturn_t netxen_intr(int irq, void *data)
2042 struct nx_host_sds_ring *sds_ring = data;
2043 struct netxen_adapter *adapter = sds_ring->adapter;
2046 status = readl(adapter->isr_int_vec);
2048 if (!(status & adapter->int_vec_bit))
2051 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2052 /* check interrupt state machine, to be sure */
2053 status = readl(adapter->crb_int_state_reg);
2054 if (!ISR_LEGACY_INT_TRIGGERED(status))
2058 unsigned long our_int = 0;
2060 our_int = readl(adapter->crb_int_state_reg);
2062 /* not our interrupt */
2063 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2066 /* claim interrupt */
2067 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2069 /* clear interrupt */
2070 netxen_nic_disable_int(sds_ring);
2073 writel(0xffffffff, adapter->tgt_status_reg);
2074 /* read twice to ensure write is flushed */
2075 readl(adapter->isr_int_vec);
2076 readl(adapter->isr_int_vec);
2078 napi_schedule(&sds_ring->napi);
2083 static irqreturn_t netxen_msi_intr(int irq, void *data)
2085 struct nx_host_sds_ring *sds_ring = data;
2086 struct netxen_adapter *adapter = sds_ring->adapter;
2088 /* clear interrupt */
2089 writel(0xffffffff, adapter->tgt_status_reg);
2091 napi_schedule(&sds_ring->napi);
2095 static irqreturn_t netxen_msix_intr(int irq, void *data)
2097 struct nx_host_sds_ring *sds_ring = data;
2099 napi_schedule(&sds_ring->napi);
2103 static int netxen_nic_poll(struct napi_struct *napi, int budget)
2105 struct nx_host_sds_ring *sds_ring =
2106 container_of(napi, struct nx_host_sds_ring, napi);
2108 struct netxen_adapter *adapter = sds_ring->adapter;
2113 tx_complete = netxen_process_cmd_ring(adapter);
2115 work_done = netxen_process_rcv_ring(sds_ring, budget);
2117 if ((work_done < budget) && tx_complete) {
2118 napi_complete(&sds_ring->napi);
2119 if (test_bit(__NX_DEV_UP, &adapter->state))
2120 netxen_nic_enable_int(sds_ring);
2126 #ifdef CONFIG_NET_POLL_CONTROLLER
2127 static void netxen_nic_poll_controller(struct net_device *netdev)
2129 struct netxen_adapter *adapter = netdev_priv(netdev);
2130 disable_irq(adapter->irq);
2131 netxen_intr(adapter->irq, adapter);
2132 enable_irq(adapter->irq);
2137 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2140 if (netxen_api_lock(adapter))
2143 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2145 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2147 netxen_api_unlock(adapter);
2152 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2155 if (netxen_api_lock(adapter))
2158 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2159 WARN_ON(count == 0);
2161 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2164 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2166 netxen_api_unlock(adapter);
2171 nx_dev_request_aer(struct netxen_adapter *adapter)
2176 if (netxen_api_lock(adapter))
2179 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2181 if (state == NX_DEV_NEED_AER)
2183 else if (state == NX_DEV_READY) {
2184 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2188 netxen_api_unlock(adapter);
2193 nx_dev_request_reset(struct netxen_adapter *adapter)
2198 if (netxen_api_lock(adapter))
2201 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2203 if (state == NX_DEV_NEED_RESET)
2205 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
2206 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2210 netxen_api_unlock(adapter);
2216 netxen_can_start_firmware(struct netxen_adapter *adapter)
2221 if (netxen_api_lock(adapter))
2224 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2226 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2231 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2234 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2236 netxen_api_unlock(adapter);
2242 netxen_schedule_work(struct netxen_adapter *adapter,
2243 work_func_t func, int delay)
2245 INIT_DELAYED_WORK(&adapter->fw_work, func);
2246 schedule_delayed_work(&adapter->fw_work, delay);
2250 netxen_cancel_fw_work(struct netxen_adapter *adapter)
2252 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2255 cancel_delayed_work_sync(&adapter->fw_work);
2259 netxen_attach_work(struct work_struct *work)
2261 struct netxen_adapter *adapter = container_of(work,
2262 struct netxen_adapter, fw_work.work);
2263 struct net_device *netdev = adapter->netdev;
2266 if (netif_running(netdev)) {
2267 err = netxen_nic_attach(adapter);
2271 err = netxen_nic_up(adapter, netdev);
2273 netxen_nic_detach(adapter);
2277 netxen_config_indev_addr(netdev, NETDEV_UP);
2280 netif_device_attach(netdev);
2283 adapter->fw_fail_cnt = 0;
2284 clear_bit(__NX_RESETTING, &adapter->state);
2285 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2289 netxen_fwinit_work(struct work_struct *work)
2291 struct netxen_adapter *adapter = container_of(work,
2292 struct netxen_adapter, fw_work.work);
2295 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2297 switch (dev_state) {
2300 if (!netxen_start_firmware(adapter)) {
2301 netxen_schedule_work(adapter, netxen_attach_work, 0);
2306 case NX_DEV_INITALIZING:
2307 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2308 netxen_schedule_work(adapter,
2309 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2315 nx_incr_dev_ref_cnt(adapter);
2319 clear_bit(__NX_RESETTING, &adapter->state);
2323 netxen_detach_work(struct work_struct *work)
2325 struct netxen_adapter *adapter = container_of(work,
2326 struct netxen_adapter, fw_work.work);
2327 struct net_device *netdev = adapter->netdev;
2331 netif_device_detach(netdev);
2333 netxen_nic_down(adapter, netdev);
2336 netxen_nic_detach(adapter);
2339 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2341 if (status & NX_RCODE_FATAL_ERROR)
2344 if (adapter->temp == NX_TEMP_PANIC)
2347 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2349 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2351 adapter->fw_wait_cnt = 0;
2352 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2357 clear_bit(__NX_RESETTING, &adapter->state);
2361 netxen_check_health(struct netxen_adapter *adapter)
2363 u32 state, heartbit;
2364 struct net_device *netdev = adapter->netdev;
2366 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2367 if (state == NX_DEV_NEED_AER)
2370 if (netxen_nic_check_temp(adapter))
2373 if (adapter->need_fw_reset) {
2374 if (nx_dev_request_reset(adapter))
2379 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2380 * 1. Tx timeout 2. Fw hang
2381 * Send request to destroy context in case of tx timeout only
2382 * and doesn't required in case of Fw hang
2384 if (state == NX_DEV_NEED_RESET) {
2385 adapter->need_fw_reset = 1;
2386 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2390 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2393 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2394 if (heartbit != adapter->heartbit) {
2395 adapter->heartbit = heartbit;
2396 adapter->fw_fail_cnt = 0;
2397 if (adapter->need_fw_reset)
2402 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2405 if (nx_dev_request_reset(adapter))
2408 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2410 dev_info(&netdev->dev, "firmware hang detected\n");
2413 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2414 !test_and_set_bit(__NX_RESETTING, &adapter->state))
2415 netxen_schedule_work(adapter, netxen_detach_work, 0);
2420 netxen_fw_poll_work(struct work_struct *work)
2422 struct netxen_adapter *adapter = container_of(work,
2423 struct netxen_adapter, fw_work.work);
2425 if (test_bit(__NX_RESETTING, &adapter->state))
2428 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2429 if (!adapter->has_link_events) {
2431 netxen_nic_handle_phy_intr(adapter);
2433 if (adapter->link_changed)
2434 netxen_nic_set_link_parameters(adapter);
2438 if (netxen_check_health(adapter))
2442 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2446 netxen_store_bridged_mode(struct device *dev,
2447 struct device_attribute *attr, const char *buf, size_t len)
2449 struct net_device *net = to_net_dev(dev);
2450 struct netxen_adapter *adapter = netdev_priv(net);
2454 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2457 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2460 if (strict_strtoul(buf, 2, &new))
2463 if (!netxen_config_bridged_mode(adapter, !!new))
2471 netxen_show_bridged_mode(struct device *dev,
2472 struct device_attribute *attr, char *buf)
2474 struct net_device *net = to_net_dev(dev);
2475 struct netxen_adapter *adapter;
2476 int bridged_mode = 0;
2478 adapter = netdev_priv(net);
2480 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2481 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2483 return sprintf(buf, "%d\n", bridged_mode);
2486 static struct device_attribute dev_attr_bridged_mode = {
2487 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2488 .show = netxen_show_bridged_mode,
2489 .store = netxen_store_bridged_mode,
2493 netxen_store_diag_mode(struct device *dev,
2494 struct device_attribute *attr, const char *buf, size_t len)
2496 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2499 if (strict_strtoul(buf, 2, &new))
2502 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2503 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2509 netxen_show_diag_mode(struct device *dev,
2510 struct device_attribute *attr, char *buf)
2512 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2514 return sprintf(buf, "%d\n",
2515 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2518 static struct device_attribute dev_attr_diag_mode = {
2519 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2520 .show = netxen_show_diag_mode,
2521 .store = netxen_store_diag_mode,
2525 netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2526 loff_t offset, size_t size)
2528 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2531 if ((size != 4) || (offset & 0x3))
2534 if (offset < NETXEN_PCI_CRBSPACE)
2541 netxen_sysfs_read_crb(struct kobject *kobj, struct bin_attribute *attr,
2542 char *buf, loff_t offset, size_t size)
2544 struct device *dev = container_of(kobj, struct device, kobj);
2545 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2549 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2553 data = NXRD32(adapter, offset);
2554 memcpy(buf, &data, size);
2559 netxen_sysfs_write_crb(struct kobject *kobj, struct bin_attribute *attr,
2560 char *buf, loff_t offset, size_t size)
2562 struct device *dev = container_of(kobj, struct device, kobj);
2563 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2567 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2571 memcpy(&data, buf, size);
2572 NXWR32(adapter, offset, data);
2577 netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2578 loff_t offset, size_t size)
2580 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2583 if ((size != 8) || (offset & 0x7))
2590 netxen_sysfs_read_mem(struct kobject *kobj, struct bin_attribute *attr,
2591 char *buf, loff_t offset, size_t size)
2593 struct device *dev = container_of(kobj, struct device, kobj);
2594 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2598 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2602 if (adapter->pci_mem_read(adapter, offset, &data))
2605 memcpy(buf, &data, size);
2610 static ssize_t netxen_sysfs_write_mem(struct kobject *kobj,
2611 struct bin_attribute *attr, char *buf,
2612 loff_t offset, size_t size)
2614 struct device *dev = container_of(kobj, struct device, kobj);
2615 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2619 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2623 memcpy(&data, buf, size);
2625 if (adapter->pci_mem_write(adapter, offset, data))
2632 static struct bin_attribute bin_attr_crb = {
2633 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2635 .read = netxen_sysfs_read_crb,
2636 .write = netxen_sysfs_write_crb,
2639 static struct bin_attribute bin_attr_mem = {
2640 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2642 .read = netxen_sysfs_read_mem,
2643 .write = netxen_sysfs_write_mem,
2648 netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2650 struct net_device *netdev = adapter->netdev;
2651 struct device *dev = &netdev->dev;
2653 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2654 /* bridged_mode control */
2655 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2656 dev_warn(&netdev->dev,
2657 "failed to create bridged_mode sysfs entry\n");
2663 netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2665 struct net_device *netdev = adapter->netdev;
2666 struct device *dev = &netdev->dev;
2668 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2669 device_remove_file(dev, &dev_attr_bridged_mode);
2673 netxen_create_diag_entries(struct netxen_adapter *adapter)
2675 struct pci_dev *pdev = adapter->pdev;
2679 if (device_create_file(dev, &dev_attr_diag_mode))
2680 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2681 if (device_create_bin_file(dev, &bin_attr_crb))
2682 dev_info(dev, "failed to create crb sysfs entry\n");
2683 if (device_create_bin_file(dev, &bin_attr_mem))
2684 dev_info(dev, "failed to create mem sysfs entry\n");
2689 netxen_remove_diag_entries(struct netxen_adapter *adapter)
2691 struct pci_dev *pdev = adapter->pdev;
2692 struct device *dev = &pdev->dev;
2694 device_remove_file(dev, &dev_attr_diag_mode);
2695 device_remove_bin_file(dev, &bin_attr_crb);
2696 device_remove_bin_file(dev, &bin_attr_mem);
2701 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2704 netxen_destip_supported(struct netxen_adapter *adapter)
2706 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2709 if (adapter->ahw.cut_through)
2716 netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2718 struct in_device *indev;
2719 struct netxen_adapter *adapter = netdev_priv(dev);
2721 if (!netxen_destip_supported(adapter))
2724 indev = in_dev_get(dev);
2731 netxen_config_ipaddr(adapter,
2732 ifa->ifa_address, NX_IP_UP);
2735 netxen_config_ipaddr(adapter,
2736 ifa->ifa_address, NX_IP_DOWN);
2741 } endfor_ifa(indev);
2747 static int netxen_netdev_event(struct notifier_block *this,
2748 unsigned long event, void *ptr)
2750 struct netxen_adapter *adapter;
2751 struct net_device *dev = (struct net_device *)ptr;
2757 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2758 dev = vlan_dev_real_dev(dev);
2762 if (!is_netxen_netdev(dev))
2765 adapter = netdev_priv(dev);
2770 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2773 netxen_config_indev_addr(dev, event);
2779 netxen_inetaddr_event(struct notifier_block *this,
2780 unsigned long event, void *ptr)
2782 struct netxen_adapter *adapter;
2783 struct net_device *dev;
2785 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2787 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2790 if (dev == NULL || !netif_running(dev))
2793 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2794 dev = vlan_dev_real_dev(dev);
2798 if (!is_netxen_netdev(dev))
2801 adapter = netdev_priv(dev);
2803 if (!adapter || !netxen_destip_supported(adapter))
2806 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2811 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2814 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2824 static struct notifier_block netxen_netdev_cb = {
2825 .notifier_call = netxen_netdev_event,
2828 static struct notifier_block netxen_inetaddr_cb = {
2829 .notifier_call = netxen_inetaddr_event,
2833 netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2837 static struct pci_error_handlers netxen_err_handler = {
2838 .error_detected = netxen_io_error_detected,
2839 .slot_reset = netxen_io_slot_reset,
2840 .resume = netxen_io_resume,
2843 static struct pci_driver netxen_driver = {
2844 .name = netxen_nic_driver_name,
2845 .id_table = netxen_pci_tbl,
2846 .probe = netxen_nic_probe,
2847 .remove = __devexit_p(netxen_nic_remove),
2849 .suspend = netxen_nic_suspend,
2850 .resume = netxen_nic_resume,
2852 .shutdown = netxen_nic_shutdown,
2853 .err_handler = &netxen_err_handler
2856 static int __init netxen_init_module(void)
2858 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2861 register_netdevice_notifier(&netxen_netdev_cb);
2862 register_inetaddr_notifier(&netxen_inetaddr_cb);
2864 return pci_register_driver(&netxen_driver);
2867 module_init(netxen_init_module);
2869 static void __exit netxen_exit_module(void)
2871 pci_unregister_driver(&netxen_driver);
2874 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2875 unregister_netdevice_notifier(&netxen_netdev_cb);
2879 module_exit(netxen_exit_module);