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 LICENSE.
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>
39 MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Converged Ethernet Driver");
40 MODULE_LICENSE("GPL");
41 MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
42 MODULE_FIRMWARE(NX_P2_MN_ROMIMAGE_NAME);
43 MODULE_FIRMWARE(NX_P3_CT_ROMIMAGE_NAME);
44 MODULE_FIRMWARE(NX_P3_MN_ROMIMAGE_NAME);
45 MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
47 char netxen_nic_driver_name[] = "netxen_nic";
48 static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
49 NETXEN_NIC_LINUX_VERSIONID;
51 static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
53 /* Default to restricted 1G auto-neg mode */
54 static int wol_port_mode = 5;
56 static int use_msi = 1;
58 static int use_msi_x = 1;
60 static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
61 module_param(auto_fw_reset, int, 0644);
62 MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
64 static int __devinit netxen_nic_probe(struct pci_dev *pdev,
65 const struct pci_device_id *ent);
66 static void __devexit netxen_nic_remove(struct pci_dev *pdev);
67 static int netxen_nic_open(struct net_device *netdev);
68 static int netxen_nic_close(struct net_device *netdev);
69 static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
71 static void netxen_tx_timeout(struct net_device *netdev);
72 static void netxen_tx_timeout_task(struct work_struct *work);
73 static void netxen_fw_poll_work(struct work_struct *work);
74 static void netxen_schedule_work(struct netxen_adapter *adapter,
75 work_func_t func, int delay);
76 static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
77 static int netxen_nic_poll(struct napi_struct *napi, int budget);
78 #ifdef CONFIG_NET_POLL_CONTROLLER
79 static void netxen_nic_poll_controller(struct net_device *netdev);
82 static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
83 static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
84 static void netxen_create_diag_entries(struct netxen_adapter *adapter);
85 static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
87 static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
88 static int netxen_can_start_firmware(struct netxen_adapter *adapter);
90 static irqreturn_t netxen_intr(int irq, void *data);
91 static irqreturn_t netxen_msi_intr(int irq, void *data);
92 static irqreturn_t netxen_msix_intr(int irq, void *data);
94 static void netxen_config_indev_addr(struct net_device *dev, unsigned long);
96 /* PCI Device ID Table */
97 #define ENTRY(device) \
98 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
99 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
101 static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
102 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
103 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
104 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
105 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
106 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
107 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
108 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
109 ENTRY(PCI_DEVICE_ID_NX3031),
113 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
115 static uint32_t crb_cmd_producer[4] = {
116 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
117 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
121 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
122 struct nx_host_tx_ring *tx_ring)
124 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
126 if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) {
127 netif_stop_queue(adapter->netdev);
132 static uint32_t crb_cmd_consumer[4] = {
133 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
134 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
138 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
139 struct nx_host_tx_ring *tx_ring)
141 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
144 static uint32_t msi_tgt_status[8] = {
145 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
146 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
147 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
148 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
151 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
153 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
155 struct netxen_adapter *adapter = sds_ring->adapter;
157 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
160 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
162 struct netxen_adapter *adapter = sds_ring->adapter;
164 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
166 if (!NETXEN_IS_MSI_FAMILY(adapter))
167 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
171 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
173 int size = sizeof(struct nx_host_sds_ring) * count;
175 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
177 return (recv_ctx->sds_rings == NULL);
181 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
183 if (recv_ctx->sds_rings != NULL)
184 kfree(recv_ctx->sds_rings);
186 recv_ctx->sds_rings = NULL;
190 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
193 struct nx_host_sds_ring *sds_ring;
194 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
196 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
199 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
200 sds_ring = &recv_ctx->sds_rings[ring];
201 netif_napi_add(netdev, &sds_ring->napi,
202 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
209 netxen_napi_del(struct netxen_adapter *adapter)
212 struct nx_host_sds_ring *sds_ring;
213 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
215 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
216 sds_ring = &recv_ctx->sds_rings[ring];
217 netif_napi_del(&sds_ring->napi);
220 netxen_free_sds_rings(&adapter->recv_ctx);
224 netxen_napi_enable(struct netxen_adapter *adapter)
227 struct nx_host_sds_ring *sds_ring;
228 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
230 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
231 sds_ring = &recv_ctx->sds_rings[ring];
232 napi_enable(&sds_ring->napi);
233 netxen_nic_enable_int(sds_ring);
238 netxen_napi_disable(struct netxen_adapter *adapter)
241 struct nx_host_sds_ring *sds_ring;
242 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
244 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
245 sds_ring = &recv_ctx->sds_rings[ring];
246 netxen_nic_disable_int(sds_ring);
247 napi_synchronize(&sds_ring->napi);
248 napi_disable(&sds_ring->napi);
252 static int nx_set_dma_mask(struct netxen_adapter *adapter)
254 struct pci_dev *pdev = adapter->pdev;
255 uint64_t mask, cmask;
257 adapter->pci_using_dac = 0;
259 mask = DMA_BIT_MASK(32);
260 cmask = DMA_BIT_MASK(32);
262 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
264 mask = DMA_BIT_MASK(35);
267 mask = DMA_BIT_MASK(39);
271 if (pci_set_dma_mask(pdev, mask) == 0 &&
272 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
273 adapter->pci_using_dac = 1;
280 /* Update addressable range if firmware supports it */
282 nx_update_dma_mask(struct netxen_adapter *adapter)
284 int change, shift, err;
285 uint64_t mask, old_mask, old_cmask;
286 struct pci_dev *pdev = adapter->pdev;
290 shift = NXRD32(adapter, CRB_DMA_SHIFT);
294 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
296 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
300 old_mask = pdev->dma_mask;
301 old_cmask = pdev->dev.coherent_dma_mask;
303 mask = DMA_BIT_MASK(32+shift);
305 err = pci_set_dma_mask(pdev, mask);
309 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
311 err = pci_set_consistent_dma_mask(pdev, mask);
315 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
321 pci_set_dma_mask(pdev, old_mask);
322 pci_set_consistent_dma_mask(pdev, old_cmask);
327 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
331 if (first_boot == 0x55555555) {
332 /* This is the first boot after power up */
333 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
335 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
338 /* PCI bus master workaround */
339 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
340 if (!(first_boot & 0x4)) {
342 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
343 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
346 /* This is the first boot after power up */
347 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
348 if (first_boot != 0x80000f) {
349 /* clear the register for future unloads/loads */
350 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
354 /* Start P2 boot loader */
355 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
356 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
360 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
362 if (++timeout > 5000)
365 } while (val == NETXEN_BDINFO_MAGIC);
370 static void netxen_set_port_mode(struct netxen_adapter *adapter)
374 val = adapter->ahw.board_type;
375 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
376 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
377 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
378 data = NETXEN_PORT_MODE_802_3_AP;
379 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
380 } else if (port_mode == NETXEN_PORT_MODE_XG) {
381 data = NETXEN_PORT_MODE_XG;
382 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
383 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
384 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
385 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
386 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
387 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
388 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
390 data = NETXEN_PORT_MODE_AUTO_NEG;
391 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
394 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
395 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
396 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
397 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
398 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
400 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
404 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
409 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
411 pci_read_config_dword(pdev, pos, &control);
413 control |= PCI_MSIX_FLAGS_ENABLE;
416 pci_write_config_dword(pdev, pos, control);
420 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
424 for (i = 0; i < count; i++)
425 adapter->msix_entries[i].entry = i;
429 netxen_read_mac_addr(struct netxen_adapter *adapter)
434 struct net_device *netdev = adapter->netdev;
435 struct pci_dev *pdev = adapter->pdev;
437 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
438 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
441 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
445 p = (unsigned char *)&mac_addr;
446 for (i = 0; i < 6; i++)
447 netdev->dev_addr[i] = *(p + 5 - i);
449 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
450 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
452 /* set station address */
454 if (!is_valid_ether_addr(netdev->perm_addr))
455 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
460 int netxen_nic_set_mac(struct net_device *netdev, void *p)
462 struct netxen_adapter *adapter = netdev_priv(netdev);
463 struct sockaddr *addr = p;
465 if (!is_valid_ether_addr(addr->sa_data))
468 if (netif_running(netdev)) {
469 netif_device_detach(netdev);
470 netxen_napi_disable(adapter);
473 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
474 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
475 adapter->macaddr_set(adapter, addr->sa_data);
477 if (netif_running(netdev)) {
478 netif_device_attach(netdev);
479 netxen_napi_enable(adapter);
484 static void netxen_set_multicast_list(struct net_device *dev)
486 struct netxen_adapter *adapter = netdev_priv(dev);
488 adapter->set_multi(dev);
491 static const struct net_device_ops netxen_netdev_ops = {
492 .ndo_open = netxen_nic_open,
493 .ndo_stop = netxen_nic_close,
494 .ndo_start_xmit = netxen_nic_xmit_frame,
495 .ndo_get_stats = netxen_nic_get_stats,
496 .ndo_validate_addr = eth_validate_addr,
497 .ndo_set_multicast_list = netxen_set_multicast_list,
498 .ndo_set_mac_address = netxen_nic_set_mac,
499 .ndo_change_mtu = netxen_nic_change_mtu,
500 .ndo_tx_timeout = netxen_tx_timeout,
501 #ifdef CONFIG_NET_POLL_CONTROLLER
502 .ndo_poll_controller = netxen_nic_poll_controller,
507 netxen_setup_intr(struct netxen_adapter *adapter)
509 struct netxen_legacy_intr_set *legacy_intrp;
510 struct pci_dev *pdev = adapter->pdev;
513 if (adapter->rss_supported) {
514 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
515 MSIX_ENTRIES_PER_ADAPTER : 2;
519 adapter->max_sds_rings = 1;
521 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
523 if (adapter->ahw.revision_id >= NX_P3_B0)
524 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
526 legacy_intrp = &legacy_intr[0];
528 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
529 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
530 legacy_intrp->tgt_status_reg);
531 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
532 legacy_intrp->tgt_mask_reg);
533 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
534 legacy_intrp->pci_int_reg);
535 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
537 if (adapter->ahw.revision_id >= NX_P3_B1)
538 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
541 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
544 netxen_set_msix_bit(pdev, 0);
546 if (adapter->msix_supported) {
548 netxen_init_msix_entries(adapter, num_msix);
549 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
551 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
552 netxen_set_msix_bit(pdev, 1);
554 if (adapter->rss_supported)
555 adapter->max_sds_rings = num_msix;
557 dev_info(&pdev->dev, "using msi-x interrupts\n");
562 pci_disable_msix(pdev);
564 /* fall through for msi */
567 if (use_msi && !pci_enable_msi(pdev)) {
568 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
569 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
570 msi_tgt_status[adapter->ahw.pci_func]);
571 dev_info(&pdev->dev, "using msi interrupts\n");
572 adapter->msix_entries[0].vector = pdev->irq;
576 dev_info(&pdev->dev, "using legacy interrupts\n");
577 adapter->msix_entries[0].vector = pdev->irq;
581 netxen_teardown_intr(struct netxen_adapter *adapter)
583 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
584 pci_disable_msix(adapter->pdev);
585 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
586 pci_disable_msi(adapter->pdev);
590 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
592 if (adapter->ahw.db_base != NULL)
593 iounmap(adapter->ahw.db_base);
594 if (adapter->ahw.pci_base0 != NULL)
595 iounmap(adapter->ahw.pci_base0);
596 if (adapter->ahw.pci_base1 != NULL)
597 iounmap(adapter->ahw.pci_base1);
598 if (adapter->ahw.pci_base2 != NULL)
599 iounmap(adapter->ahw.pci_base2);
603 netxen_setup_pci_map(struct netxen_adapter *adapter)
605 void __iomem *mem_ptr0 = NULL;
606 void __iomem *mem_ptr1 = NULL;
607 void __iomem *mem_ptr2 = NULL;
608 void __iomem *db_ptr = NULL;
610 resource_size_t mem_base, db_base;
611 unsigned long mem_len, db_len = 0, pci_len0 = 0;
613 struct pci_dev *pdev = adapter->pdev;
614 int pci_func = adapter->ahw.pci_func;
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) {
631 mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
632 mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
633 SECOND_PAGE_GROUP_SIZE);
634 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
635 THIRD_PAGE_GROUP_SIZE);
636 pci_len0 = FIRST_PAGE_GROUP_SIZE;
637 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
638 mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
639 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
640 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
641 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
643 mem_ptr0 = pci_ioremap_bar(pdev, 0);
644 if (mem_ptr0 == NULL) {
645 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
653 netxen_setup_hwops(adapter);
655 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
657 adapter->ahw.pci_base0 = mem_ptr0;
658 adapter->ahw.pci_len0 = pci_len0;
659 adapter->ahw.pci_base1 = mem_ptr1;
660 adapter->ahw.pci_base2 = mem_ptr2;
662 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
663 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
664 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
666 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
667 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
668 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
671 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
674 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
675 db_len = pci_resource_len(pdev, 4);
678 printk(KERN_ERR "%s: doorbell is disabled\n",
679 netxen_nic_driver_name);
684 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
686 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
687 netxen_nic_driver_name);
693 adapter->ahw.db_base = db_ptr;
694 adapter->ahw.db_len = db_len;
698 netxen_cleanup_pci_map(adapter);
703 netxen_check_options(struct netxen_adapter *adapter)
705 u32 fw_major, fw_minor, fw_build;
706 char brd_name[NETXEN_MAX_SHORT_NAME];
710 struct pci_dev *pdev = adapter->pdev;
712 adapter->driver_mismatch = 0;
714 ptr32 = (int *)&serial_num;
715 offset = NX_FW_SERIAL_NUM_OFFSET;
716 for (i = 0; i < 8; i++) {
717 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
718 dev_err(&pdev->dev, "error reading board info\n");
719 adapter->driver_mismatch = 1;
722 ptr32[i] = cpu_to_le32(val);
723 offset += sizeof(u32);
726 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
727 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
728 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
730 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
732 if (adapter->portnum == 0) {
733 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
735 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
736 module_name(THIS_MODULE),
737 brd_name, serial_num, adapter->ahw.revision_id);
740 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
741 adapter->driver_mismatch = 1;
742 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
743 fw_major, fw_minor, fw_build);
747 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
748 i = NXRD32(adapter, NETXEN_SRE_MISC);
749 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
752 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
753 fw_major, fw_minor, fw_build,
754 adapter->ahw.cut_through ? "cut-through" : "legacy");
756 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
757 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
759 adapter->flags &= ~NETXEN_NIC_LRO_ENABLED;
761 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
762 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
763 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
764 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
765 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
766 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
769 adapter->msix_supported = 0;
770 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
771 adapter->msix_supported = !!use_msi_x;
772 adapter->rss_supported = !!use_msi_x;
773 } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) {
774 switch (adapter->ahw.board_type) {
775 case NETXEN_BRDTYPE_P2_SB31_10G:
776 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
777 adapter->msix_supported = !!use_msi_x;
778 adapter->rss_supported = !!use_msi_x;
785 adapter->num_txd = MAX_CMD_DESCRIPTORS;
787 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
788 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
789 adapter->max_rds_rings = 3;
791 adapter->num_lro_rxd = 0;
792 adapter->max_rds_rings = 2;
797 netxen_start_firmware(struct netxen_adapter *adapter)
799 int val, err, first_boot;
800 struct pci_dev *pdev = adapter->pdev;
802 /* required for NX2031 dummy dma */
803 err = nx_set_dma_mask(adapter);
807 if (!netxen_can_start_firmware(adapter))
810 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
812 err = netxen_check_hw_init(adapter, first_boot);
814 dev_err(&pdev->dev, "error in init HW init sequence\n");
818 netxen_request_firmware(adapter);
820 err = netxen_need_fw_reset(adapter);
826 if (first_boot != 0x55555555) {
827 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
828 netxen_pinit_from_rom(adapter);
832 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
833 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
834 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
836 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
837 netxen_set_port_mode(adapter);
839 err = netxen_load_firmware(adapter);
843 netxen_release_firmware(adapter);
845 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
847 /* Initialize multicast addr pool owners */
849 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
851 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
855 err = netxen_init_dummy_dma(adapter);
860 * Tell the hardware our version number.
862 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
863 | ((_NETXEN_NIC_LINUX_MINOR << 8))
864 | (_NETXEN_NIC_LINUX_SUBVERSION);
865 NXWR32(adapter, CRB_DRIVER_VERSION, val);
868 /* Handshake with the card before we register the devices. */
869 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
871 netxen_free_dummy_dma(adapter);
875 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
877 nx_update_dma_mask(adapter);
879 netxen_check_options(adapter);
881 adapter->need_fw_reset = 0;
883 /* fall through and release firmware */
886 netxen_release_firmware(adapter);
891 netxen_nic_request_irq(struct netxen_adapter *adapter)
893 irq_handler_t handler;
894 struct nx_host_sds_ring *sds_ring;
897 unsigned long flags = IRQF_SAMPLE_RANDOM;
898 struct net_device *netdev = adapter->netdev;
899 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
901 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
902 handler = netxen_msix_intr;
903 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
904 handler = netxen_msi_intr;
906 flags |= IRQF_SHARED;
907 handler = netxen_intr;
909 adapter->irq = netdev->irq;
911 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
912 sds_ring = &recv_ctx->sds_rings[ring];
913 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
914 err = request_irq(sds_ring->irq, handler,
915 flags, sds_ring->name, sds_ring);
924 netxen_nic_free_irq(struct netxen_adapter *adapter)
927 struct nx_host_sds_ring *sds_ring;
929 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
931 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
932 sds_ring = &recv_ctx->sds_rings[ring];
933 free_irq(sds_ring->irq, sds_ring);
938 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
940 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
941 adapter->coal.normal.data.rx_time_us =
942 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
943 adapter->coal.normal.data.rx_packets =
944 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
945 adapter->coal.normal.data.tx_time_us =
946 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
947 adapter->coal.normal.data.tx_packets =
948 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
953 __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
957 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
960 err = adapter->init_port(adapter, adapter->physical_port);
962 printk(KERN_ERR "%s: Failed to initialize port %d\n",
963 netxen_nic_driver_name, adapter->portnum);
966 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
967 adapter->macaddr_set(adapter, adapter->mac_addr);
969 adapter->set_multi(netdev);
970 adapter->set_mtu(adapter, netdev->mtu);
972 adapter->ahw.linkup = 0;
974 if (adapter->max_sds_rings > 1)
975 netxen_config_rss(adapter, 1);
977 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
978 netxen_config_intr_coalesce(adapter);
980 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
981 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
983 netxen_napi_enable(adapter);
985 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
986 netxen_linkevent_request(adapter, 1);
988 netxen_nic_set_link_parameters(adapter);
990 set_bit(__NX_DEV_UP, &adapter->state);
994 /* Usage: During resume and firmware recovery module.*/
997 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1002 if (netif_running(netdev))
1003 err = __netxen_nic_up(adapter, netdev);
1009 /* with rtnl_lock */
1011 __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1013 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1016 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1020 spin_lock(&adapter->tx_clean_lock);
1021 netif_carrier_off(netdev);
1022 netif_tx_disable(netdev);
1024 if (adapter->stop_port)
1025 adapter->stop_port(adapter);
1027 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1028 netxen_p3_free_mac_list(adapter);
1030 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1032 netxen_napi_disable(adapter);
1034 netxen_release_tx_buffers(adapter);
1035 spin_unlock(&adapter->tx_clean_lock);
1038 /* Usage: During suspend and firmware recovery module */
1041 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1044 if (netif_running(netdev))
1045 __netxen_nic_down(adapter, netdev);
1051 netxen_nic_attach(struct netxen_adapter *adapter)
1053 struct net_device *netdev = adapter->netdev;
1054 struct pci_dev *pdev = adapter->pdev;
1056 struct nx_host_rds_ring *rds_ring;
1057 struct nx_host_tx_ring *tx_ring;
1059 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1062 err = netxen_init_firmware(adapter);
1066 err = netxen_napi_add(adapter, netdev);
1070 err = netxen_alloc_sw_resources(adapter);
1072 printk(KERN_ERR "%s: Error in setting sw resources\n",
1077 err = netxen_alloc_hw_resources(adapter);
1079 printk(KERN_ERR "%s: Error in setting hw resources\n",
1081 goto err_out_free_sw;
1084 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1085 tx_ring = adapter->tx_ring;
1086 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1087 crb_cmd_producer[adapter->portnum]);
1088 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1089 crb_cmd_consumer[adapter->portnum]);
1091 tx_ring->producer = 0;
1092 tx_ring->sw_consumer = 0;
1094 netxen_nic_update_cmd_producer(adapter, tx_ring);
1095 netxen_nic_update_cmd_consumer(adapter, tx_ring);
1098 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1099 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1100 netxen_post_rx_buffers(adapter, ring, rds_ring);
1103 err = netxen_nic_request_irq(adapter);
1105 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1107 goto err_out_free_rxbuf;
1110 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1111 netxen_nic_init_coalesce_defaults(adapter);
1113 netxen_create_sysfs_entries(adapter);
1115 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1119 netxen_release_rx_buffers(adapter);
1120 netxen_free_hw_resources(adapter);
1122 netxen_free_sw_resources(adapter);
1127 netxen_nic_detach(struct netxen_adapter *adapter)
1129 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1132 netxen_remove_sysfs_entries(adapter);
1134 netxen_free_hw_resources(adapter);
1135 netxen_release_rx_buffers(adapter);
1136 netxen_nic_free_irq(adapter);
1137 netxen_napi_del(adapter);
1138 netxen_free_sw_resources(adapter);
1144 netxen_nic_reset_context(struct netxen_adapter *adapter)
1147 struct net_device *netdev = adapter->netdev;
1149 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1152 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1154 netif_device_detach(netdev);
1156 if (netif_running(netdev))
1157 __netxen_nic_down(adapter, netdev);
1159 netxen_nic_detach(adapter);
1161 if (netif_running(netdev)) {
1162 err = netxen_nic_attach(adapter);
1164 err = __netxen_nic_up(adapter, netdev);
1170 netif_device_attach(netdev);
1174 clear_bit(__NX_RESETTING, &adapter->state);
1179 netxen_setup_netdev(struct netxen_adapter *adapter,
1180 struct net_device *netdev)
1183 struct pci_dev *pdev = adapter->pdev;
1185 adapter->rx_csum = 1;
1186 adapter->mc_enabled = 0;
1187 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1188 adapter->max_mc_count = 38;
1190 adapter->max_mc_count = 16;
1192 netdev->netdev_ops = &netxen_netdev_ops;
1193 netdev->watchdog_timeo = 2*HZ;
1195 netxen_nic_change_mtu(netdev, netdev->mtu);
1197 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1199 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1200 netdev->features |= (NETIF_F_GRO);
1201 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1203 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1204 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1205 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1208 if (adapter->pci_using_dac) {
1209 netdev->features |= NETIF_F_HIGHDMA;
1210 netdev->vlan_features |= NETIF_F_HIGHDMA;
1213 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1214 netdev->features |= (NETIF_F_HW_VLAN_TX);
1216 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1217 netdev->features |= NETIF_F_LRO;
1219 netdev->irq = adapter->msix_entries[0].vector;
1221 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1223 if (netxen_read_mac_addr(adapter))
1224 dev_warn(&pdev->dev, "failed to read mac addr\n");
1226 netif_carrier_off(netdev);
1227 netif_stop_queue(netdev);
1229 err = register_netdev(netdev);
1231 dev_err(&pdev->dev, "failed to register net device\n");
1238 static int __devinit
1239 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1241 struct net_device *netdev = NULL;
1242 struct netxen_adapter *adapter = NULL;
1244 int pci_func_id = PCI_FUNC(pdev->devfn);
1245 uint8_t revision_id;
1247 if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) {
1248 pr_warning("%s: chip revisions between 0x%x-0x%x"
1249 "will not be enabled.\n",
1250 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
1254 if ((err = pci_enable_device(pdev)))
1257 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1259 goto err_out_disable_pdev;
1262 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1263 goto err_out_disable_pdev;
1265 pci_set_master(pdev);
1267 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1269 dev_err(&pdev->dev, "failed to allocate net_device\n");
1271 goto err_out_free_res;
1274 SET_NETDEV_DEV(netdev, &pdev->dev);
1276 adapter = netdev_priv(netdev);
1277 adapter->netdev = netdev;
1278 adapter->pdev = pdev;
1279 adapter->ahw.pci_func = pci_func_id;
1281 revision_id = pdev->revision;
1282 adapter->ahw.revision_id = revision_id;
1284 rwlock_init(&adapter->ahw.crb_lock);
1285 spin_lock_init(&adapter->ahw.mem_lock);
1287 spin_lock_init(&adapter->tx_clean_lock);
1288 INIT_LIST_HEAD(&adapter->mac_list);
1290 err = netxen_setup_pci_map(adapter);
1292 goto err_out_free_netdev;
1294 /* This will be reset for mezz cards */
1295 adapter->portnum = pci_func_id;
1297 err = netxen_nic_get_board_info(adapter);
1299 dev_err(&pdev->dev, "Error getting board config info.\n");
1300 goto err_out_iounmap;
1303 /* Mezz cards have PCI function 0,2,3 enabled */
1304 switch (adapter->ahw.board_type) {
1305 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1306 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1307 if (pci_func_id >= 2)
1308 adapter->portnum = pci_func_id - 2;
1314 err = netxen_start_firmware(adapter);
1316 goto err_out_decr_ref;
1319 * See if the firmware gave us a virtual-physical port mapping.
1321 adapter->physical_port = adapter->portnum;
1322 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1323 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1324 if (i != 0x55555555)
1325 adapter->physical_port = i;
1328 netxen_nic_clear_stats(adapter);
1330 netxen_setup_intr(adapter);
1332 err = netxen_setup_netdev(adapter, netdev);
1334 goto err_out_disable_msi;
1336 pci_set_drvdata(pdev, adapter);
1338 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1340 switch (adapter->ahw.port_type) {
1341 case NETXEN_NIC_GBE:
1342 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1343 adapter->netdev->name);
1345 case NETXEN_NIC_XGBE:
1346 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1347 adapter->netdev->name);
1351 netxen_create_diag_entries(adapter);
1355 err_out_disable_msi:
1356 netxen_teardown_intr(adapter);
1358 netxen_free_dummy_dma(adapter);
1361 nx_decr_dev_ref_cnt(adapter);
1364 netxen_cleanup_pci_map(adapter);
1366 err_out_free_netdev:
1367 free_netdev(netdev);
1370 pci_release_regions(pdev);
1372 err_out_disable_pdev:
1373 pci_set_drvdata(pdev, NULL);
1374 pci_disable_device(pdev);
1378 static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1380 struct netxen_adapter *adapter;
1381 struct net_device *netdev;
1383 adapter = pci_get_drvdata(pdev);
1384 if (adapter == NULL)
1387 netdev = adapter->netdev;
1389 netxen_cancel_fw_work(adapter);
1391 unregister_netdev(netdev);
1393 cancel_work_sync(&adapter->tx_timeout_task);
1395 netxen_nic_detach(adapter);
1397 nx_decr_dev_ref_cnt(adapter);
1399 if (adapter->portnum == 0)
1400 netxen_free_dummy_dma(adapter);
1402 clear_bit(__NX_RESETTING, &adapter->state);
1404 netxen_teardown_intr(adapter);
1406 netxen_remove_diag_entries(adapter);
1408 netxen_cleanup_pci_map(adapter);
1410 netxen_release_firmware(adapter);
1412 pci_release_regions(pdev);
1413 pci_disable_device(pdev);
1414 pci_set_drvdata(pdev, NULL);
1416 free_netdev(netdev);
1418 static int __netxen_nic_shutdown(struct pci_dev *pdev)
1420 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1421 struct net_device *netdev = adapter->netdev;
1424 netif_device_detach(netdev);
1426 netxen_cancel_fw_work(adapter);
1428 if (netif_running(netdev))
1429 netxen_nic_down(adapter, netdev);
1431 cancel_work_sync(&adapter->tx_timeout_task);
1433 netxen_nic_detach(adapter);
1435 if (adapter->portnum == 0)
1436 netxen_free_dummy_dma(adapter);
1438 nx_decr_dev_ref_cnt(adapter);
1440 clear_bit(__NX_RESETTING, &adapter->state);
1442 retval = pci_save_state(pdev);
1446 if (netxen_nic_wol_supported(adapter)) {
1447 pci_enable_wake(pdev, PCI_D3cold, 1);
1448 pci_enable_wake(pdev, PCI_D3hot, 1);
1451 pci_disable_device(pdev);
1455 static void netxen_nic_shutdown(struct pci_dev *pdev)
1457 if (__netxen_nic_shutdown(pdev))
1462 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1466 retval = __netxen_nic_shutdown(pdev);
1470 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1475 netxen_nic_resume(struct pci_dev *pdev)
1477 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1478 struct net_device *netdev = adapter->netdev;
1481 pci_set_power_state(pdev, PCI_D0);
1482 pci_restore_state(pdev);
1484 err = pci_enable_device(pdev);
1488 adapter->ahw.crb_win = -1;
1489 adapter->ahw.ocm_win = -1;
1491 err = netxen_start_firmware(adapter);
1493 dev_err(&pdev->dev, "failed to start firmware\n");
1497 if (netif_running(netdev)) {
1498 err = netxen_nic_attach(adapter);
1502 err = netxen_nic_up(adapter, netdev);
1504 goto err_out_detach;
1506 netif_device_attach(netdev);
1508 netxen_config_indev_addr(netdev, NETDEV_UP);
1511 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1515 netxen_nic_detach(adapter);
1517 nx_decr_dev_ref_cnt(adapter);
1522 static int netxen_nic_open(struct net_device *netdev)
1524 struct netxen_adapter *adapter = netdev_priv(netdev);
1527 if (adapter->driver_mismatch)
1530 err = netxen_nic_attach(adapter);
1534 err = __netxen_nic_up(adapter, netdev);
1538 netif_start_queue(netdev);
1543 netxen_nic_detach(adapter);
1548 * netxen_nic_close - Disables a network interface entry point
1550 static int netxen_nic_close(struct net_device *netdev)
1552 struct netxen_adapter *adapter = netdev_priv(netdev);
1554 __netxen_nic_down(adapter, netdev);
1559 netxen_tso_check(struct net_device *netdev,
1560 struct nx_host_tx_ring *tx_ring,
1561 struct cmd_desc_type0 *first_desc,
1562 struct sk_buff *skb)
1564 u8 opcode = TX_ETHER_PKT;
1565 __be16 protocol = skb->protocol;
1566 u16 flags = 0, vid = 0;
1568 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1569 struct cmd_desc_type0 *hwdesc;
1570 struct vlan_ethhdr *vh;
1572 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1574 vh = (struct vlan_ethhdr *)skb->data;
1575 protocol = vh->h_vlan_encapsulated_proto;
1576 flags = FLAGS_VLAN_TAGGED;
1578 } else if (vlan_tx_tag_present(skb)) {
1580 flags = FLAGS_VLAN_OOB;
1581 vid = vlan_tx_tag_get(skb);
1582 netxen_set_tx_vlan_tci(first_desc, vid);
1586 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1587 skb_shinfo(skb)->gso_size > 0) {
1589 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1591 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1592 first_desc->total_hdr_length = hdr_len;
1594 first_desc->total_hdr_length += VLAN_HLEN;
1595 first_desc->tcp_hdr_offset = VLAN_HLEN;
1596 first_desc->ip_hdr_offset = VLAN_HLEN;
1597 /* Only in case of TSO on vlan device */
1598 flags |= FLAGS_VLAN_TAGGED;
1601 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1602 TX_TCP_LSO6 : TX_TCP_LSO;
1605 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1608 if (protocol == cpu_to_be16(ETH_P_IP)) {
1609 l4proto = ip_hdr(skb)->protocol;
1611 if (l4proto == IPPROTO_TCP)
1612 opcode = TX_TCP_PKT;
1613 else if(l4proto == IPPROTO_UDP)
1614 opcode = TX_UDP_PKT;
1615 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1616 l4proto = ipv6_hdr(skb)->nexthdr;
1618 if (l4proto == IPPROTO_TCP)
1619 opcode = TX_TCPV6_PKT;
1620 else if(l4proto == IPPROTO_UDP)
1621 opcode = TX_UDPV6_PKT;
1625 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1626 first_desc->ip_hdr_offset += skb_network_offset(skb);
1627 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1632 /* For LSO, we need to copy the MAC/IP/TCP headers into
1633 * the descriptor ring
1635 producer = tx_ring->producer;
1640 /* Create a TSO vlan header template for firmware */
1642 hwdesc = &tx_ring->desc_head[producer];
1643 tx_ring->cmd_buf_arr[producer].skb = NULL;
1645 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1646 hdr_len + VLAN_HLEN);
1648 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1649 skb_copy_from_linear_data(skb, vh, 12);
1650 vh->h_vlan_proto = htons(ETH_P_8021Q);
1651 vh->h_vlan_TCI = htons(vid);
1652 skb_copy_from_linear_data_offset(skb, 12,
1653 (char *)vh + 16, copy_len - 16);
1655 copied = copy_len - VLAN_HLEN;
1658 producer = get_next_index(producer, tx_ring->num_desc);
1661 while (copied < hdr_len) {
1663 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1664 (hdr_len - copied));
1666 hwdesc = &tx_ring->desc_head[producer];
1667 tx_ring->cmd_buf_arr[producer].skb = NULL;
1669 skb_copy_from_linear_data_offset(skb, copied,
1670 (char *)hwdesc + offset, copy_len);
1675 producer = get_next_index(producer, tx_ring->num_desc);
1678 tx_ring->producer = producer;
1683 netxen_map_tx_skb(struct pci_dev *pdev,
1684 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1686 struct netxen_skb_frag *nf;
1687 struct skb_frag_struct *frag;
1691 nr_frags = skb_shinfo(skb)->nr_frags;
1692 nf = &pbuf->frag_array[0];
1694 map = pci_map_single(pdev, skb->data,
1695 skb_headlen(skb), PCI_DMA_TODEVICE);
1696 if (pci_dma_mapping_error(pdev, map))
1700 nf->length = skb_headlen(skb);
1702 for (i = 0; i < nr_frags; i++) {
1703 frag = &skb_shinfo(skb)->frags[i];
1704 nf = &pbuf->frag_array[i+1];
1706 map = pci_map_page(pdev, frag->page, frag->page_offset,
1707 frag->size, PCI_DMA_TODEVICE);
1708 if (pci_dma_mapping_error(pdev, map))
1712 nf->length = frag->size;
1719 nf = &pbuf->frag_array[i+1];
1720 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1723 nf = &pbuf->frag_array[0];
1724 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1731 netxen_clear_cmddesc(u64 *desc)
1738 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1740 struct netxen_adapter *adapter = netdev_priv(netdev);
1741 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1742 struct netxen_cmd_buffer *pbuf;
1743 struct netxen_skb_frag *buffrag;
1744 struct cmd_desc_type0 *hwdesc, *first_desc;
1745 struct pci_dev *pdev;
1749 int frag_count, no_of_desc;
1750 u32 num_txd = tx_ring->num_desc;
1752 frag_count = skb_shinfo(skb)->nr_frags + 1;
1754 /* 4 fragments per cmd des */
1755 no_of_desc = (frag_count + 3) >> 2;
1757 if (unlikely(no_of_desc + 2 > netxen_tx_avail(tx_ring))) {
1758 netif_stop_queue(netdev);
1759 return NETDEV_TX_BUSY;
1762 producer = tx_ring->producer;
1763 pbuf = &tx_ring->cmd_buf_arr[producer];
1765 pdev = adapter->pdev;
1767 if (netxen_map_tx_skb(pdev, skb, pbuf))
1771 pbuf->frag_count = frag_count;
1773 first_desc = hwdesc = &tx_ring->desc_head[producer];
1774 netxen_clear_cmddesc((u64 *)hwdesc);
1776 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1777 netxen_set_tx_port(first_desc, adapter->portnum);
1779 for (i = 0; i < frag_count; i++) {
1783 if ((k == 0) && (i > 0)) {
1784 /* move to next desc.*/
1785 producer = get_next_index(producer, num_txd);
1786 hwdesc = &tx_ring->desc_head[producer];
1787 netxen_clear_cmddesc((u64 *)hwdesc);
1788 tx_ring->cmd_buf_arr[producer].skb = NULL;
1791 buffrag = &pbuf->frag_array[i];
1793 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
1796 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1799 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
1802 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
1805 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
1810 tx_ring->producer = get_next_index(producer, num_txd);
1812 netxen_tso_check(netdev, tx_ring, first_desc, skb);
1814 netxen_nic_update_cmd_producer(adapter, tx_ring);
1816 adapter->stats.txbytes += skb->len;
1817 adapter->stats.xmitcalled++;
1819 return NETDEV_TX_OK;
1822 adapter->stats.txdropped++;
1823 dev_kfree_skb_any(skb);
1824 return NETDEV_TX_OK;
1827 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1829 struct net_device *netdev = adapter->netdev;
1830 uint32_t temp, temp_state, temp_val;
1833 temp = NXRD32(adapter, CRB_TEMP_STATE);
1835 temp_state = nx_get_temp_state(temp);
1836 temp_val = nx_get_temp_val(temp);
1838 if (temp_state == NX_TEMP_PANIC) {
1840 "%s: Device temperature %d degrees C exceeds"
1841 " maximum allowed. Hardware has been shut down.\n",
1842 netdev->name, temp_val);
1844 } else if (temp_state == NX_TEMP_WARN) {
1845 if (adapter->temp == NX_TEMP_NORMAL) {
1847 "%s: Device temperature %d degrees C "
1848 "exceeds operating range."
1849 " Immediate action needed.\n",
1850 netdev->name, temp_val);
1853 if (adapter->temp == NX_TEMP_WARN) {
1855 "%s: Device temperature is now %d degrees C"
1856 " in normal range.\n", netdev->name,
1860 adapter->temp = temp_state;
1864 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
1866 struct net_device *netdev = adapter->netdev;
1868 if (adapter->ahw.linkup && !linkup) {
1869 printk(KERN_INFO "%s: %s NIC Link is down\n",
1870 netxen_nic_driver_name, netdev->name);
1871 adapter->ahw.linkup = 0;
1872 if (netif_running(netdev)) {
1873 netif_carrier_off(netdev);
1874 netif_stop_queue(netdev);
1876 adapter->link_changed = !adapter->has_link_events;
1877 } else if (!adapter->ahw.linkup && linkup) {
1878 printk(KERN_INFO "%s: %s NIC Link is up\n",
1879 netxen_nic_driver_name, netdev->name);
1880 adapter->ahw.linkup = 1;
1881 if (netif_running(netdev)) {
1882 netif_carrier_on(netdev);
1883 netif_wake_queue(netdev);
1885 adapter->link_changed = !adapter->has_link_events;
1889 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1891 u32 val, port, linkup;
1893 port = adapter->physical_port;
1895 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1896 val = NXRD32(adapter, CRB_XG_STATE_P3);
1897 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1898 linkup = (val == XG_LINK_UP_P3);
1900 val = NXRD32(adapter, CRB_XG_STATE);
1901 if (adapter->ahw.port_type == NETXEN_NIC_GBE)
1902 linkup = (val >> port) & 1;
1904 val = (val >> port*8) & 0xff;
1905 linkup = (val == XG_LINK_UP);
1909 netxen_advert_link_change(adapter, linkup);
1912 static void netxen_tx_timeout(struct net_device *netdev)
1914 struct netxen_adapter *adapter = netdev_priv(netdev);
1916 if (test_bit(__NX_RESETTING, &adapter->state))
1919 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
1920 schedule_work(&adapter->tx_timeout_task);
1923 static void netxen_tx_timeout_task(struct work_struct *work)
1925 struct netxen_adapter *adapter =
1926 container_of(work, struct netxen_adapter, tx_timeout_task);
1928 if (!netif_running(adapter->netdev))
1931 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1934 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
1937 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1938 /* try to scrub interrupt */
1939 netxen_napi_disable(adapter);
1941 adapter->netdev->trans_start = jiffies;
1943 netxen_napi_enable(adapter);
1945 netif_wake_queue(adapter->netdev);
1947 clear_bit(__NX_RESETTING, &adapter->state);
1950 clear_bit(__NX_RESETTING, &adapter->state);
1951 if (!netxen_nic_reset_context(adapter)) {
1952 adapter->netdev->trans_start = jiffies;
1956 /* context reset failed, fall through for fw reset */
1960 adapter->need_fw_reset = 1;
1961 clear_bit(__NX_RESETTING, &adapter->state);
1964 struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
1966 struct netxen_adapter *adapter = netdev_priv(netdev);
1967 struct net_device_stats *stats = &netdev->stats;
1969 memset(stats, 0, sizeof(*stats));
1971 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
1972 stats->tx_packets = adapter->stats.xmitfinished;
1973 stats->rx_bytes = adapter->stats.rxbytes;
1974 stats->tx_bytes = adapter->stats.txbytes;
1975 stats->rx_dropped = adapter->stats.rxdropped;
1976 stats->tx_dropped = adapter->stats.txdropped;
1981 static irqreturn_t netxen_intr(int irq, void *data)
1983 struct nx_host_sds_ring *sds_ring = data;
1984 struct netxen_adapter *adapter = sds_ring->adapter;
1987 status = readl(adapter->isr_int_vec);
1989 if (!(status & adapter->int_vec_bit))
1992 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1993 /* check interrupt state machine, to be sure */
1994 status = readl(adapter->crb_int_state_reg);
1995 if (!ISR_LEGACY_INT_TRIGGERED(status))
1999 unsigned long our_int = 0;
2001 our_int = readl(adapter->crb_int_state_reg);
2003 /* not our interrupt */
2004 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2007 /* claim interrupt */
2008 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2010 /* clear interrupt */
2011 netxen_nic_disable_int(sds_ring);
2014 writel(0xffffffff, adapter->tgt_status_reg);
2015 /* read twice to ensure write is flushed */
2016 readl(adapter->isr_int_vec);
2017 readl(adapter->isr_int_vec);
2019 napi_schedule(&sds_ring->napi);
2024 static irqreturn_t netxen_msi_intr(int irq, void *data)
2026 struct nx_host_sds_ring *sds_ring = data;
2027 struct netxen_adapter *adapter = sds_ring->adapter;
2029 /* clear interrupt */
2030 writel(0xffffffff, adapter->tgt_status_reg);
2032 napi_schedule(&sds_ring->napi);
2036 static irqreturn_t netxen_msix_intr(int irq, void *data)
2038 struct nx_host_sds_ring *sds_ring = data;
2040 napi_schedule(&sds_ring->napi);
2044 static int netxen_nic_poll(struct napi_struct *napi, int budget)
2046 struct nx_host_sds_ring *sds_ring =
2047 container_of(napi, struct nx_host_sds_ring, napi);
2049 struct netxen_adapter *adapter = sds_ring->adapter;
2054 tx_complete = netxen_process_cmd_ring(adapter);
2056 work_done = netxen_process_rcv_ring(sds_ring, budget);
2058 if ((work_done < budget) && tx_complete) {
2059 napi_complete(&sds_ring->napi);
2060 if (test_bit(__NX_DEV_UP, &adapter->state))
2061 netxen_nic_enable_int(sds_ring);
2067 #ifdef CONFIG_NET_POLL_CONTROLLER
2068 static void netxen_nic_poll_controller(struct net_device *netdev)
2070 struct netxen_adapter *adapter = netdev_priv(netdev);
2071 disable_irq(adapter->irq);
2072 netxen_intr(adapter->irq, adapter);
2073 enable_irq(adapter->irq);
2078 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2081 if (netxen_api_lock(adapter))
2084 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2086 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2088 netxen_api_unlock(adapter);
2093 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2096 if (netxen_api_lock(adapter))
2099 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2100 WARN_ON(count == 0);
2102 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2105 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2107 netxen_api_unlock(adapter);
2112 nx_dev_request_reset(struct netxen_adapter *adapter)
2116 if (netxen_api_lock(adapter))
2119 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2121 if (state != NX_DEV_INITALIZING)
2122 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2124 netxen_api_unlock(adapter);
2128 netxen_can_start_firmware(struct netxen_adapter *adapter)
2133 if (netxen_api_lock(adapter))
2136 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2138 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2143 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2146 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2148 netxen_api_unlock(adapter);
2154 netxen_schedule_work(struct netxen_adapter *adapter,
2155 work_func_t func, int delay)
2157 INIT_DELAYED_WORK(&adapter->fw_work, func);
2158 schedule_delayed_work(&adapter->fw_work, delay);
2162 netxen_cancel_fw_work(struct netxen_adapter *adapter)
2164 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2167 cancel_delayed_work_sync(&adapter->fw_work);
2171 netxen_attach_work(struct work_struct *work)
2173 struct netxen_adapter *adapter = container_of(work,
2174 struct netxen_adapter, fw_work.work);
2175 struct net_device *netdev = adapter->netdev;
2178 if (netif_running(netdev)) {
2179 err = netxen_nic_attach(adapter);
2183 err = netxen_nic_up(adapter, netdev);
2185 netxen_nic_detach(adapter);
2189 netxen_config_indev_addr(netdev, NETDEV_UP);
2192 netif_device_attach(netdev);
2195 adapter->fw_fail_cnt = 0;
2196 clear_bit(__NX_RESETTING, &adapter->state);
2197 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2201 netxen_fwinit_work(struct work_struct *work)
2203 struct netxen_adapter *adapter = container_of(work,
2204 struct netxen_adapter, fw_work.work);
2207 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2209 switch (dev_state) {
2212 if (!netxen_start_firmware(adapter)) {
2213 netxen_schedule_work(adapter, netxen_attach_work, 0);
2218 case NX_DEV_INITALIZING:
2219 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2220 netxen_schedule_work(adapter,
2221 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2227 nx_incr_dev_ref_cnt(adapter);
2231 clear_bit(__NX_RESETTING, &adapter->state);
2235 netxen_detach_work(struct work_struct *work)
2237 struct netxen_adapter *adapter = container_of(work,
2238 struct netxen_adapter, fw_work.work);
2239 struct net_device *netdev = adapter->netdev;
2243 netif_device_detach(netdev);
2245 netxen_nic_down(adapter, netdev);
2247 netxen_nic_detach(adapter);
2249 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2251 if (status & NX_RCODE_FATAL_ERROR)
2254 if (adapter->temp == NX_TEMP_PANIC)
2257 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2259 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2261 adapter->fw_wait_cnt = 0;
2262 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2267 clear_bit(__NX_RESETTING, &adapter->state);
2271 netxen_check_health(struct netxen_adapter *adapter)
2273 u32 state, heartbit;
2274 struct net_device *netdev = adapter->netdev;
2276 if (netxen_nic_check_temp(adapter))
2279 if (adapter->need_fw_reset) {
2280 nx_dev_request_reset(adapter);
2284 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2285 if (state == NX_DEV_NEED_RESET)
2288 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2291 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2292 if (heartbit != adapter->heartbit) {
2293 adapter->heartbit = heartbit;
2294 adapter->fw_fail_cnt = 0;
2298 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2301 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2303 dev_info(&netdev->dev, "firmware hang detected\n");
2306 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2307 !test_and_set_bit(__NX_RESETTING, &adapter->state))
2308 netxen_schedule_work(adapter, netxen_detach_work, 0);
2313 netxen_fw_poll_work(struct work_struct *work)
2315 struct netxen_adapter *adapter = container_of(work,
2316 struct netxen_adapter, fw_work.work);
2318 if (test_bit(__NX_RESETTING, &adapter->state))
2321 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2322 if (!adapter->has_link_events) {
2324 netxen_nic_handle_phy_intr(adapter);
2326 if (adapter->link_changed)
2327 netxen_nic_set_link_parameters(adapter);
2331 if (netxen_check_health(adapter))
2335 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2339 netxen_store_bridged_mode(struct device *dev,
2340 struct device_attribute *attr, const char *buf, size_t len)
2342 struct net_device *net = to_net_dev(dev);
2343 struct netxen_adapter *adapter = netdev_priv(net);
2347 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2350 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2353 if (strict_strtoul(buf, 2, &new))
2356 if (!netxen_config_bridged_mode(adapter, !!new))
2364 netxen_show_bridged_mode(struct device *dev,
2365 struct device_attribute *attr, char *buf)
2367 struct net_device *net = to_net_dev(dev);
2368 struct netxen_adapter *adapter;
2369 int bridged_mode = 0;
2371 adapter = netdev_priv(net);
2373 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2374 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2376 return sprintf(buf, "%d\n", bridged_mode);
2379 static struct device_attribute dev_attr_bridged_mode = {
2380 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2381 .show = netxen_show_bridged_mode,
2382 .store = netxen_store_bridged_mode,
2386 netxen_store_diag_mode(struct device *dev,
2387 struct device_attribute *attr, const char *buf, size_t len)
2389 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2392 if (strict_strtoul(buf, 2, &new))
2395 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2396 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2402 netxen_show_diag_mode(struct device *dev,
2403 struct device_attribute *attr, char *buf)
2405 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2407 return sprintf(buf, "%d\n",
2408 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2411 static struct device_attribute dev_attr_diag_mode = {
2412 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2413 .show = netxen_show_diag_mode,
2414 .store = netxen_store_diag_mode,
2418 netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2419 loff_t offset, size_t size)
2421 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2424 if ((size != 4) || (offset & 0x3))
2427 if (offset < NETXEN_PCI_CRBSPACE)
2434 netxen_sysfs_read_crb(struct kobject *kobj, struct bin_attribute *attr,
2435 char *buf, loff_t offset, size_t size)
2437 struct device *dev = container_of(kobj, struct device, kobj);
2438 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2442 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2446 data = NXRD32(adapter, offset);
2447 memcpy(buf, &data, size);
2452 netxen_sysfs_write_crb(struct kobject *kobj, struct bin_attribute *attr,
2453 char *buf, loff_t offset, size_t size)
2455 struct device *dev = container_of(kobj, struct device, kobj);
2456 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2460 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2464 memcpy(&data, buf, size);
2465 NXWR32(adapter, offset, data);
2470 netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2471 loff_t offset, size_t size)
2473 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2476 if ((size != 8) || (offset & 0x7))
2483 netxen_sysfs_read_mem(struct kobject *kobj, struct bin_attribute *attr,
2484 char *buf, loff_t offset, size_t size)
2486 struct device *dev = container_of(kobj, struct device, kobj);
2487 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2491 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2495 if (adapter->pci_mem_read(adapter, offset, &data))
2498 memcpy(buf, &data, size);
2503 ssize_t netxen_sysfs_write_mem(struct kobject *kobj,
2504 struct bin_attribute *attr, char *buf,
2505 loff_t offset, size_t size)
2507 struct device *dev = container_of(kobj, struct device, kobj);
2508 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2512 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2516 memcpy(&data, buf, size);
2518 if (adapter->pci_mem_write(adapter, offset, data))
2525 static struct bin_attribute bin_attr_crb = {
2526 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2528 .read = netxen_sysfs_read_crb,
2529 .write = netxen_sysfs_write_crb,
2532 static struct bin_attribute bin_attr_mem = {
2533 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2535 .read = netxen_sysfs_read_mem,
2536 .write = netxen_sysfs_write_mem,
2541 netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2543 struct net_device *netdev = adapter->netdev;
2544 struct device *dev = &netdev->dev;
2546 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2547 /* bridged_mode control */
2548 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2549 dev_warn(&netdev->dev,
2550 "failed to create bridged_mode sysfs entry\n");
2556 netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2558 struct net_device *netdev = adapter->netdev;
2559 struct device *dev = &netdev->dev;
2561 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2562 device_remove_file(dev, &dev_attr_bridged_mode);
2566 netxen_create_diag_entries(struct netxen_adapter *adapter)
2568 struct pci_dev *pdev = adapter->pdev;
2572 if (device_create_file(dev, &dev_attr_diag_mode))
2573 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2574 if (device_create_bin_file(dev, &bin_attr_crb))
2575 dev_info(dev, "failed to create crb sysfs entry\n");
2576 if (device_create_bin_file(dev, &bin_attr_mem))
2577 dev_info(dev, "failed to create mem sysfs entry\n");
2582 netxen_remove_diag_entries(struct netxen_adapter *adapter)
2584 struct pci_dev *pdev = adapter->pdev;
2585 struct device *dev = &pdev->dev;
2587 device_remove_file(dev, &dev_attr_diag_mode);
2588 device_remove_bin_file(dev, &bin_attr_crb);
2589 device_remove_bin_file(dev, &bin_attr_mem);
2594 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2597 netxen_destip_supported(struct netxen_adapter *adapter)
2599 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2602 if (adapter->ahw.cut_through)
2609 netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2611 struct in_device *indev;
2612 struct netxen_adapter *adapter = netdev_priv(dev);
2614 if (!netxen_destip_supported(adapter))
2617 indev = in_dev_get(dev);
2624 netxen_config_ipaddr(adapter,
2625 ifa->ifa_address, NX_IP_UP);
2628 netxen_config_ipaddr(adapter,
2629 ifa->ifa_address, NX_IP_DOWN);
2634 } endfor_ifa(indev);
2640 static int netxen_netdev_event(struct notifier_block *this,
2641 unsigned long event, void *ptr)
2643 struct netxen_adapter *adapter;
2644 struct net_device *dev = (struct net_device *)ptr;
2650 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2651 dev = vlan_dev_real_dev(dev);
2655 if (!is_netxen_netdev(dev))
2658 adapter = netdev_priv(dev);
2663 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2666 netxen_config_indev_addr(dev, event);
2672 netxen_inetaddr_event(struct notifier_block *this,
2673 unsigned long event, void *ptr)
2675 struct netxen_adapter *adapter;
2676 struct net_device *dev;
2678 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2680 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2683 if (dev == NULL || !netif_running(dev))
2686 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2687 dev = vlan_dev_real_dev(dev);
2691 if (!is_netxen_netdev(dev))
2694 adapter = netdev_priv(dev);
2696 if (!adapter || !netxen_destip_supported(adapter))
2699 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2704 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2707 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2717 static struct notifier_block netxen_netdev_cb = {
2718 .notifier_call = netxen_netdev_event,
2721 static struct notifier_block netxen_inetaddr_cb = {
2722 .notifier_call = netxen_inetaddr_event,
2726 netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2730 static struct pci_driver netxen_driver = {
2731 .name = netxen_nic_driver_name,
2732 .id_table = netxen_pci_tbl,
2733 .probe = netxen_nic_probe,
2734 .remove = __devexit_p(netxen_nic_remove),
2736 .suspend = netxen_nic_suspend,
2737 .resume = netxen_nic_resume,
2739 .shutdown = netxen_nic_shutdown
2742 static int __init netxen_init_module(void)
2744 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2747 register_netdevice_notifier(&netxen_netdev_cb);
2748 register_inetaddr_notifier(&netxen_inetaddr_cb);
2750 return pci_register_driver(&netxen_driver);
2753 module_init(netxen_init_module);
2755 static void __exit netxen_exit_module(void)
2757 pci_unregister_driver(&netxen_driver);
2760 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2761 unregister_netdevice_notifier(&netxen_netdev_cb);
2765 module_exit(netxen_exit_module);