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>
38 MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver");
39 MODULE_LICENSE("GPL");
40 MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
42 char netxen_nic_driver_name[] = "netxen_nic";
43 static char netxen_nic_driver_string[] = "NetXen Network Driver version "
44 NETXEN_NIC_LINUX_VERSIONID;
46 static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
48 /* Default to restricted 1G auto-neg mode */
49 static int wol_port_mode = 5;
51 static int use_msi = 1;
53 static int use_msi_x = 1;
55 /* Local functions to NetXen NIC driver */
56 static int __devinit netxen_nic_probe(struct pci_dev *pdev,
57 const struct pci_device_id *ent);
58 static void __devexit netxen_nic_remove(struct pci_dev *pdev);
59 static int netxen_nic_open(struct net_device *netdev);
60 static int netxen_nic_close(struct net_device *netdev);
61 static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
63 static void netxen_tx_timeout(struct net_device *netdev);
64 static void netxen_tx_timeout_task(struct work_struct *work);
65 static void netxen_fw_poll_work(struct work_struct *work);
66 static void netxen_schedule_work(struct netxen_adapter *adapter,
67 work_func_t func, int delay);
68 static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
69 static int netxen_nic_poll(struct napi_struct *napi, int budget);
70 #ifdef CONFIG_NET_POLL_CONTROLLER
71 static void netxen_nic_poll_controller(struct net_device *netdev);
74 static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
75 static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
76 static void netxen_create_diag_entries(struct netxen_adapter *adapter);
77 static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
79 static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
80 static int netxen_can_start_firmware(struct netxen_adapter *adapter);
82 static irqreturn_t netxen_intr(int irq, void *data);
83 static irqreturn_t netxen_msi_intr(int irq, void *data);
84 static irqreturn_t netxen_msix_intr(int irq, void *data);
86 static void netxen_config_indev_addr(struct net_device *dev, unsigned long);
88 /* PCI Device ID Table */
89 #define ENTRY(device) \
90 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
91 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
93 static struct pci_device_id netxen_pci_tbl[] __devinitdata = {
94 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
95 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
96 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
97 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
98 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
99 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
100 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
101 ENTRY(PCI_DEVICE_ID_NX3031),
105 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
107 static uint32_t crb_cmd_producer[4] = {
108 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
109 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
113 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
114 struct nx_host_tx_ring *tx_ring)
116 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
118 if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) {
119 netif_stop_queue(adapter->netdev);
124 static uint32_t crb_cmd_consumer[4] = {
125 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
126 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
130 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
131 struct nx_host_tx_ring *tx_ring)
133 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
136 static uint32_t msi_tgt_status[8] = {
137 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
138 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
139 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
140 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
143 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
145 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
147 struct netxen_adapter *adapter = sds_ring->adapter;
149 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
152 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
154 struct netxen_adapter *adapter = sds_ring->adapter;
156 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
158 if (!NETXEN_IS_MSI_FAMILY(adapter))
159 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
163 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
165 int size = sizeof(struct nx_host_sds_ring) * count;
167 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
169 return (recv_ctx->sds_rings == NULL);
173 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
175 if (recv_ctx->sds_rings != NULL)
176 kfree(recv_ctx->sds_rings);
178 recv_ctx->sds_rings = NULL;
182 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
185 struct nx_host_sds_ring *sds_ring;
186 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
188 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
191 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
192 sds_ring = &recv_ctx->sds_rings[ring];
193 netif_napi_add(netdev, &sds_ring->napi,
194 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
201 netxen_napi_del(struct netxen_adapter *adapter)
204 struct nx_host_sds_ring *sds_ring;
205 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
207 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
208 sds_ring = &recv_ctx->sds_rings[ring];
209 netif_napi_del(&sds_ring->napi);
212 netxen_free_sds_rings(&adapter->recv_ctx);
216 netxen_napi_enable(struct netxen_adapter *adapter)
219 struct nx_host_sds_ring *sds_ring;
220 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
222 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
223 sds_ring = &recv_ctx->sds_rings[ring];
224 napi_enable(&sds_ring->napi);
225 netxen_nic_enable_int(sds_ring);
230 netxen_napi_disable(struct netxen_adapter *adapter)
233 struct nx_host_sds_ring *sds_ring;
234 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
236 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
237 sds_ring = &recv_ctx->sds_rings[ring];
238 netxen_nic_disable_int(sds_ring);
239 napi_synchronize(&sds_ring->napi);
240 napi_disable(&sds_ring->napi);
244 static int nx_set_dma_mask(struct netxen_adapter *adapter)
246 struct pci_dev *pdev = adapter->pdev;
247 uint64_t mask, cmask;
249 adapter->pci_using_dac = 0;
251 mask = DMA_BIT_MASK(32);
252 cmask = DMA_BIT_MASK(32);
254 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
256 mask = DMA_BIT_MASK(35);
259 mask = DMA_BIT_MASK(39);
263 if (pci_set_dma_mask(pdev, mask) == 0 &&
264 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
265 adapter->pci_using_dac = 1;
272 /* Update addressable range if firmware supports it */
274 nx_update_dma_mask(struct netxen_adapter *adapter)
276 int change, shift, err;
277 uint64_t mask, old_mask, old_cmask;
278 struct pci_dev *pdev = adapter->pdev;
282 shift = NXRD32(adapter, CRB_DMA_SHIFT);
286 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
288 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
292 old_mask = pdev->dma_mask;
293 old_cmask = pdev->dev.coherent_dma_mask;
295 mask = DMA_BIT_MASK(32+shift);
297 err = pci_set_dma_mask(pdev, mask);
301 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
303 err = pci_set_consistent_dma_mask(pdev, mask);
307 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
313 pci_set_dma_mask(pdev, old_mask);
314 pci_set_consistent_dma_mask(pdev, old_cmask);
319 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
323 if (first_boot == 0x55555555) {
324 /* This is the first boot after power up */
325 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
327 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
330 /* PCI bus master workaround */
331 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
332 if (!(first_boot & 0x4)) {
334 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
335 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
338 /* This is the first boot after power up */
339 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
340 if (first_boot != 0x80000f) {
341 /* clear the register for future unloads/loads */
342 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
346 /* Start P2 boot loader */
347 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
348 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
352 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
354 if (++timeout > 5000)
357 } while (val == NETXEN_BDINFO_MAGIC);
362 static void netxen_set_port_mode(struct netxen_adapter *adapter)
366 val = adapter->ahw.board_type;
367 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
368 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
369 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
370 data = NETXEN_PORT_MODE_802_3_AP;
371 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
372 } else if (port_mode == NETXEN_PORT_MODE_XG) {
373 data = NETXEN_PORT_MODE_XG;
374 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
375 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
376 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
377 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
378 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
379 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
380 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
382 data = NETXEN_PORT_MODE_AUTO_NEG;
383 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
386 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
387 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
388 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
389 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
390 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
392 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
396 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
401 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
403 pci_read_config_dword(pdev, pos, &control);
405 control |= PCI_MSIX_FLAGS_ENABLE;
408 pci_write_config_dword(pdev, pos, control);
412 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
416 for (i = 0; i < count; i++)
417 adapter->msix_entries[i].entry = i;
421 netxen_read_mac_addr(struct netxen_adapter *adapter)
426 struct net_device *netdev = adapter->netdev;
427 struct pci_dev *pdev = adapter->pdev;
429 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
430 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
433 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
437 p = (unsigned char *)&mac_addr;
438 for (i = 0; i < 6; i++)
439 netdev->dev_addr[i] = *(p + 5 - i);
441 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
443 /* set station address */
445 if (!is_valid_ether_addr(netdev->perm_addr))
446 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
451 int netxen_nic_set_mac(struct net_device *netdev, void *p)
453 struct netxen_adapter *adapter = netdev_priv(netdev);
454 struct sockaddr *addr = p;
456 if (!is_valid_ether_addr(addr->sa_data))
459 if (netif_running(netdev)) {
460 netif_device_detach(netdev);
461 netxen_napi_disable(adapter);
464 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
465 adapter->macaddr_set(adapter, addr->sa_data);
467 if (netif_running(netdev)) {
468 netif_device_attach(netdev);
469 netxen_napi_enable(adapter);
474 static void netxen_set_multicast_list(struct net_device *dev)
476 struct netxen_adapter *adapter = netdev_priv(dev);
478 adapter->set_multi(dev);
481 static const struct net_device_ops netxen_netdev_ops = {
482 .ndo_open = netxen_nic_open,
483 .ndo_stop = netxen_nic_close,
484 .ndo_start_xmit = netxen_nic_xmit_frame,
485 .ndo_get_stats = netxen_nic_get_stats,
486 .ndo_validate_addr = eth_validate_addr,
487 .ndo_set_multicast_list = netxen_set_multicast_list,
488 .ndo_set_mac_address = netxen_nic_set_mac,
489 .ndo_change_mtu = netxen_nic_change_mtu,
490 .ndo_tx_timeout = netxen_tx_timeout,
491 #ifdef CONFIG_NET_POLL_CONTROLLER
492 .ndo_poll_controller = netxen_nic_poll_controller,
497 netxen_setup_intr(struct netxen_adapter *adapter)
499 struct netxen_legacy_intr_set *legacy_intrp;
500 struct pci_dev *pdev = adapter->pdev;
503 if (adapter->rss_supported) {
504 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
505 MSIX_ENTRIES_PER_ADAPTER : 2;
509 adapter->max_sds_rings = 1;
511 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
513 if (adapter->ahw.revision_id >= NX_P3_B0)
514 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
516 legacy_intrp = &legacy_intr[0];
518 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
519 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
520 legacy_intrp->tgt_status_reg);
521 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
522 legacy_intrp->tgt_mask_reg);
523 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
524 legacy_intrp->pci_int_reg);
525 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
527 if (adapter->ahw.revision_id >= NX_P3_B1)
528 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
531 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
534 netxen_set_msix_bit(pdev, 0);
536 if (adapter->msix_supported) {
538 netxen_init_msix_entries(adapter, num_msix);
539 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
541 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
542 netxen_set_msix_bit(pdev, 1);
544 if (adapter->rss_supported)
545 adapter->max_sds_rings = num_msix;
547 dev_info(&pdev->dev, "using msi-x interrupts\n");
552 pci_disable_msix(pdev);
554 /* fall through for msi */
557 if (use_msi && !pci_enable_msi(pdev)) {
558 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
559 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
560 msi_tgt_status[adapter->ahw.pci_func]);
561 dev_info(&pdev->dev, "using msi interrupts\n");
562 adapter->msix_entries[0].vector = pdev->irq;
566 dev_info(&pdev->dev, "using legacy interrupts\n");
567 adapter->msix_entries[0].vector = pdev->irq;
571 netxen_teardown_intr(struct netxen_adapter *adapter)
573 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
574 pci_disable_msix(adapter->pdev);
575 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
576 pci_disable_msi(adapter->pdev);
580 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
582 if (adapter->ahw.db_base != NULL)
583 iounmap(adapter->ahw.db_base);
584 if (adapter->ahw.pci_base0 != NULL)
585 iounmap(adapter->ahw.pci_base0);
586 if (adapter->ahw.pci_base1 != NULL)
587 iounmap(adapter->ahw.pci_base1);
588 if (adapter->ahw.pci_base2 != NULL)
589 iounmap(adapter->ahw.pci_base2);
593 netxen_setup_pci_map(struct netxen_adapter *adapter)
595 void __iomem *mem_ptr0 = NULL;
596 void __iomem *mem_ptr1 = NULL;
597 void __iomem *mem_ptr2 = NULL;
598 void __iomem *db_ptr = NULL;
600 resource_size_t mem_base, db_base;
601 unsigned long mem_len, db_len = 0, pci_len0 = 0;
603 struct pci_dev *pdev = adapter->pdev;
604 int pci_func = adapter->ahw.pci_func;
609 * Set the CRB window to invalid. If any register in window 0 is
610 * accessed it should set the window to 0 and then reset it to 1.
612 adapter->ahw.crb_win = -1;
613 adapter->ahw.ocm_win = -1;
615 /* remap phys address */
616 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
617 mem_len = pci_resource_len(pdev, 0);
619 /* 128 Meg of memory */
620 if (mem_len == NETXEN_PCI_128MB_SIZE) {
621 mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
622 mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
623 SECOND_PAGE_GROUP_SIZE);
624 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
625 THIRD_PAGE_GROUP_SIZE);
626 pci_len0 = FIRST_PAGE_GROUP_SIZE;
627 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
628 mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
629 mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
630 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
631 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
633 mem_ptr0 = pci_ioremap_bar(pdev, 0);
634 if (mem_ptr0 == NULL) {
635 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
643 netxen_setup_hwops(adapter);
645 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
647 adapter->ahw.pci_base0 = mem_ptr0;
648 adapter->ahw.pci_len0 = pci_len0;
649 adapter->ahw.pci_base1 = mem_ptr1;
650 adapter->ahw.pci_base2 = mem_ptr2;
652 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
653 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
654 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
656 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
657 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
658 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
661 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
664 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
665 db_len = pci_resource_len(pdev, 4);
668 printk(KERN_ERR "%s: doorbell is disabled\n",
669 netxen_nic_driver_name);
674 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
676 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
677 netxen_nic_driver_name);
683 adapter->ahw.db_base = db_ptr;
684 adapter->ahw.db_len = db_len;
688 netxen_cleanup_pci_map(adapter);
693 netxen_check_options(struct netxen_adapter *adapter)
695 u32 fw_major, fw_minor, fw_build;
696 char brd_name[NETXEN_MAX_SHORT_NAME];
700 struct pci_dev *pdev = adapter->pdev;
702 adapter->driver_mismatch = 0;
704 ptr32 = (int *)&serial_num;
705 offset = NX_FW_SERIAL_NUM_OFFSET;
706 for (i = 0; i < 8; i++) {
707 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
708 dev_err(&pdev->dev, "error reading board info\n");
709 adapter->driver_mismatch = 1;
712 ptr32[i] = cpu_to_le32(val);
713 offset += sizeof(u32);
716 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
717 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
718 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
720 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
722 if (adapter->portnum == 0) {
723 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
725 printk(KERN_INFO "NetXen %s Board S/N %s Chip rev 0x%x\n",
726 brd_name, serial_num, adapter->ahw.revision_id);
729 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
730 adapter->driver_mismatch = 1;
731 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
732 fw_major, fw_minor, fw_build);
736 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
737 i = NXRD32(adapter, NETXEN_SRE_MISC);
738 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
741 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
742 fw_major, fw_minor, fw_build,
743 adapter->ahw.cut_through ? "cut-through" : "legacy");
745 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
746 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
748 adapter->flags &= ~NETXEN_NIC_LRO_ENABLED;
750 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
751 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
752 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
753 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
754 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
755 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
758 adapter->msix_supported = 0;
759 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
760 adapter->msix_supported = !!use_msi_x;
761 adapter->rss_supported = !!use_msi_x;
762 } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) {
763 switch (adapter->ahw.board_type) {
764 case NETXEN_BRDTYPE_P2_SB31_10G:
765 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
766 adapter->msix_supported = !!use_msi_x;
767 adapter->rss_supported = !!use_msi_x;
774 adapter->num_txd = MAX_CMD_DESCRIPTORS;
776 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
777 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
778 adapter->max_rds_rings = 3;
780 adapter->num_lro_rxd = 0;
781 adapter->max_rds_rings = 2;
786 netxen_start_firmware(struct netxen_adapter *adapter)
788 int val, err, first_boot;
789 struct pci_dev *pdev = adapter->pdev;
791 /* required for NX2031 dummy dma */
792 err = nx_set_dma_mask(adapter);
796 if (!netxen_can_start_firmware(adapter))
799 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
801 err = netxen_check_hw_init(adapter, first_boot);
803 dev_err(&pdev->dev, "error in init HW init sequence\n");
807 netxen_request_firmware(adapter);
809 err = netxen_need_fw_reset(adapter);
815 if (first_boot != 0x55555555) {
816 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
817 netxen_pinit_from_rom(adapter);
821 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
822 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
823 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
825 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
826 netxen_set_port_mode(adapter);
828 err = netxen_load_firmware(adapter);
832 netxen_release_firmware(adapter);
834 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
836 /* Initialize multicast addr pool owners */
838 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
840 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
844 err = netxen_init_dummy_dma(adapter);
849 * Tell the hardware our version number.
851 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
852 | ((_NETXEN_NIC_LINUX_MINOR << 8))
853 | (_NETXEN_NIC_LINUX_SUBVERSION);
854 NXWR32(adapter, CRB_DRIVER_VERSION, val);
857 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
860 /* Handshake with the card before we register the devices. */
861 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
863 netxen_free_dummy_dma(adapter);
867 nx_update_dma_mask(adapter);
869 netxen_check_options(adapter);
871 adapter->need_fw_reset = 0;
873 /* fall through and release firmware */
876 netxen_release_firmware(adapter);
881 netxen_nic_request_irq(struct netxen_adapter *adapter)
883 irq_handler_t handler;
884 struct nx_host_sds_ring *sds_ring;
887 unsigned long flags = IRQF_SAMPLE_RANDOM;
888 struct net_device *netdev = adapter->netdev;
889 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
891 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
892 handler = netxen_msix_intr;
893 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
894 handler = netxen_msi_intr;
896 flags |= IRQF_SHARED;
897 handler = netxen_intr;
899 adapter->irq = netdev->irq;
901 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
902 sds_ring = &recv_ctx->sds_rings[ring];
903 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
904 err = request_irq(sds_ring->irq, handler,
905 flags, sds_ring->name, sds_ring);
914 netxen_nic_free_irq(struct netxen_adapter *adapter)
917 struct nx_host_sds_ring *sds_ring;
919 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
921 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
922 sds_ring = &recv_ctx->sds_rings[ring];
923 free_irq(sds_ring->irq, sds_ring);
928 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
930 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
931 adapter->coal.normal.data.rx_time_us =
932 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
933 adapter->coal.normal.data.rx_packets =
934 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
935 adapter->coal.normal.data.tx_time_us =
936 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
937 adapter->coal.normal.data.tx_packets =
938 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
942 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
946 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
949 err = adapter->init_port(adapter, adapter->physical_port);
951 printk(KERN_ERR "%s: Failed to initialize port %d\n",
952 netxen_nic_driver_name, adapter->portnum);
955 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
956 adapter->macaddr_set(adapter, netdev->dev_addr);
958 adapter->set_multi(netdev);
959 adapter->set_mtu(adapter, netdev->mtu);
961 adapter->ahw.linkup = 0;
963 if (adapter->max_sds_rings > 1)
964 netxen_config_rss(adapter, 1);
966 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
967 netxen_config_intr_coalesce(adapter);
969 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
970 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
972 netxen_napi_enable(adapter);
974 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
975 netxen_linkevent_request(adapter, 1);
977 netxen_nic_set_link_parameters(adapter);
979 set_bit(__NX_DEV_UP, &adapter->state);
984 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
986 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
989 clear_bit(__NX_DEV_UP, &adapter->state);
991 spin_lock(&adapter->tx_clean_lock);
992 netif_carrier_off(netdev);
993 netif_tx_disable(netdev);
995 if (adapter->stop_port)
996 adapter->stop_port(adapter);
998 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
999 netxen_p3_free_mac_list(adapter);
1001 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1003 netxen_napi_disable(adapter);
1005 netxen_release_tx_buffers(adapter);
1006 spin_unlock(&adapter->tx_clean_lock);
1011 netxen_nic_attach(struct netxen_adapter *adapter)
1013 struct net_device *netdev = adapter->netdev;
1014 struct pci_dev *pdev = adapter->pdev;
1016 struct nx_host_rds_ring *rds_ring;
1017 struct nx_host_tx_ring *tx_ring;
1019 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1022 err = netxen_init_firmware(adapter);
1026 err = netxen_napi_add(adapter, netdev);
1030 err = netxen_alloc_sw_resources(adapter);
1032 printk(KERN_ERR "%s: Error in setting sw resources\n",
1037 err = netxen_alloc_hw_resources(adapter);
1039 printk(KERN_ERR "%s: Error in setting hw resources\n",
1041 goto err_out_free_sw;
1044 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1045 tx_ring = adapter->tx_ring;
1046 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1047 crb_cmd_producer[adapter->portnum]);
1048 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1049 crb_cmd_consumer[adapter->portnum]);
1051 tx_ring->producer = 0;
1052 tx_ring->sw_consumer = 0;
1054 netxen_nic_update_cmd_producer(adapter, tx_ring);
1055 netxen_nic_update_cmd_consumer(adapter, tx_ring);
1058 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1059 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1060 netxen_post_rx_buffers(adapter, ring, rds_ring);
1063 err = netxen_nic_request_irq(adapter);
1065 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1067 goto err_out_free_rxbuf;
1070 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1071 netxen_nic_init_coalesce_defaults(adapter);
1073 netxen_create_sysfs_entries(adapter);
1075 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1079 netxen_release_rx_buffers(adapter);
1080 netxen_free_hw_resources(adapter);
1082 netxen_free_sw_resources(adapter);
1087 netxen_nic_detach(struct netxen_adapter *adapter)
1089 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1092 netxen_remove_sysfs_entries(adapter);
1094 netxen_free_hw_resources(adapter);
1095 netxen_release_rx_buffers(adapter);
1096 netxen_nic_free_irq(adapter);
1097 netxen_napi_del(adapter);
1098 netxen_free_sw_resources(adapter);
1104 netxen_nic_reset_context(struct netxen_adapter *adapter)
1107 struct net_device *netdev = adapter->netdev;
1109 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1112 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1114 netif_device_detach(netdev);
1116 if (netif_running(netdev))
1117 netxen_nic_down(adapter, netdev);
1119 netxen_nic_detach(adapter);
1121 if (netif_running(netdev)) {
1122 err = netxen_nic_attach(adapter);
1124 err = netxen_nic_up(adapter, netdev);
1130 netif_device_attach(netdev);
1134 clear_bit(__NX_RESETTING, &adapter->state);
1139 netxen_setup_netdev(struct netxen_adapter *adapter,
1140 struct net_device *netdev)
1143 struct pci_dev *pdev = adapter->pdev;
1145 adapter->rx_csum = 1;
1146 adapter->mc_enabled = 0;
1147 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1148 adapter->max_mc_count = 38;
1150 adapter->max_mc_count = 16;
1152 netdev->netdev_ops = &netxen_netdev_ops;
1153 netdev->watchdog_timeo = 2*HZ;
1155 netxen_nic_change_mtu(netdev, netdev->mtu);
1157 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1159 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1160 netdev->features |= (NETIF_F_GRO);
1161 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1163 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1164 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1165 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1168 if (adapter->pci_using_dac) {
1169 netdev->features |= NETIF_F_HIGHDMA;
1170 netdev->vlan_features |= NETIF_F_HIGHDMA;
1173 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1174 netdev->features |= (NETIF_F_HW_VLAN_TX);
1176 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1177 netdev->features |= NETIF_F_LRO;
1179 netdev->irq = adapter->msix_entries[0].vector;
1181 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1183 if (netxen_read_mac_addr(adapter))
1184 dev_warn(&pdev->dev, "failed to read mac addr\n");
1186 netif_carrier_off(netdev);
1187 netif_stop_queue(netdev);
1189 err = register_netdev(netdev);
1191 dev_err(&pdev->dev, "failed to register net device\n");
1198 static int __devinit
1199 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1201 struct net_device *netdev = NULL;
1202 struct netxen_adapter *adapter = NULL;
1204 int pci_func_id = PCI_FUNC(pdev->devfn);
1205 uint8_t revision_id;
1207 if (pdev->class != 0x020000) {
1208 printk(KERN_DEBUG "NetXen function %d, class %x will not "
1209 "be enabled.\n",pci_func_id, pdev->class);
1213 if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) {
1214 printk(KERN_WARNING "NetXen chip revisions between 0x%x-0x%x"
1215 "will not be enabled.\n",
1216 NX_P3_A0, NX_P3_B1);
1220 if ((err = pci_enable_device(pdev)))
1223 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1225 goto err_out_disable_pdev;
1228 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1229 goto err_out_disable_pdev;
1231 pci_set_master(pdev);
1233 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1235 dev_err(&pdev->dev, "failed to allocate net_device\n");
1237 goto err_out_free_res;
1240 SET_NETDEV_DEV(netdev, &pdev->dev);
1242 adapter = netdev_priv(netdev);
1243 adapter->netdev = netdev;
1244 adapter->pdev = pdev;
1245 adapter->ahw.pci_func = pci_func_id;
1247 revision_id = pdev->revision;
1248 adapter->ahw.revision_id = revision_id;
1250 rwlock_init(&adapter->ahw.crb_lock);
1251 spin_lock_init(&adapter->ahw.mem_lock);
1253 spin_lock_init(&adapter->tx_clean_lock);
1254 INIT_LIST_HEAD(&adapter->mac_list);
1256 err = netxen_setup_pci_map(adapter);
1258 goto err_out_free_netdev;
1260 /* This will be reset for mezz cards */
1261 adapter->portnum = pci_func_id;
1263 err = netxen_nic_get_board_info(adapter);
1265 dev_err(&pdev->dev, "Error getting board config info.\n");
1266 goto err_out_iounmap;
1269 /* Mezz cards have PCI function 0,2,3 enabled */
1270 switch (adapter->ahw.board_type) {
1271 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1272 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1273 if (pci_func_id >= 2)
1274 adapter->portnum = pci_func_id - 2;
1280 err = netxen_start_firmware(adapter);
1282 goto err_out_iounmap;
1285 * See if the firmware gave us a virtual-physical port mapping.
1287 adapter->physical_port = adapter->portnum;
1288 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1289 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1290 if (i != 0x55555555)
1291 adapter->physical_port = i;
1294 netxen_nic_clear_stats(adapter);
1296 netxen_setup_intr(adapter);
1298 err = netxen_setup_netdev(adapter, netdev);
1300 goto err_out_disable_msi;
1302 pci_set_drvdata(pdev, adapter);
1304 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1306 switch (adapter->ahw.port_type) {
1307 case NETXEN_NIC_GBE:
1308 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1309 adapter->netdev->name);
1311 case NETXEN_NIC_XGBE:
1312 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1313 adapter->netdev->name);
1317 netxen_create_diag_entries(adapter);
1321 err_out_disable_msi:
1322 netxen_teardown_intr(adapter);
1324 netxen_free_dummy_dma(adapter);
1326 nx_decr_dev_ref_cnt(adapter);
1329 netxen_cleanup_pci_map(adapter);
1331 err_out_free_netdev:
1332 free_netdev(netdev);
1335 pci_release_regions(pdev);
1337 err_out_disable_pdev:
1338 pci_set_drvdata(pdev, NULL);
1339 pci_disable_device(pdev);
1343 static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1345 struct netxen_adapter *adapter;
1346 struct net_device *netdev;
1348 adapter = pci_get_drvdata(pdev);
1349 if (adapter == NULL)
1352 netdev = adapter->netdev;
1354 netxen_cancel_fw_work(adapter);
1356 unregister_netdev(netdev);
1358 cancel_work_sync(&adapter->tx_timeout_task);
1360 netxen_nic_detach(adapter);
1362 nx_decr_dev_ref_cnt(adapter);
1364 if (adapter->portnum == 0)
1365 netxen_free_dummy_dma(adapter);
1367 clear_bit(__NX_RESETTING, &adapter->state);
1369 netxen_teardown_intr(adapter);
1371 netxen_remove_diag_entries(adapter);
1373 netxen_cleanup_pci_map(adapter);
1375 netxen_release_firmware(adapter);
1377 pci_release_regions(pdev);
1378 pci_disable_device(pdev);
1379 pci_set_drvdata(pdev, NULL);
1381 free_netdev(netdev);
1383 static int __netxen_nic_shutdown(struct pci_dev *pdev)
1385 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1386 struct net_device *netdev = adapter->netdev;
1389 netif_device_detach(netdev);
1391 netxen_cancel_fw_work(adapter);
1393 if (netif_running(netdev))
1394 netxen_nic_down(adapter, netdev);
1396 cancel_work_sync(&adapter->tx_timeout_task);
1398 netxen_nic_detach(adapter);
1400 if (adapter->portnum == 0)
1401 netxen_free_dummy_dma(adapter);
1403 nx_decr_dev_ref_cnt(adapter);
1405 clear_bit(__NX_RESETTING, &adapter->state);
1407 retval = pci_save_state(pdev);
1411 if (netxen_nic_wol_supported(adapter)) {
1412 pci_enable_wake(pdev, PCI_D3cold, 1);
1413 pci_enable_wake(pdev, PCI_D3hot, 1);
1416 pci_disable_device(pdev);
1420 static void netxen_nic_shutdown(struct pci_dev *pdev)
1422 if (__netxen_nic_shutdown(pdev))
1427 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1431 retval = __netxen_nic_shutdown(pdev);
1435 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1440 netxen_nic_resume(struct pci_dev *pdev)
1442 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1443 struct net_device *netdev = adapter->netdev;
1446 pci_set_power_state(pdev, PCI_D0);
1447 pci_restore_state(pdev);
1449 err = pci_enable_device(pdev);
1453 adapter->ahw.crb_win = -1;
1454 adapter->ahw.ocm_win = -1;
1456 err = netxen_start_firmware(adapter);
1458 dev_err(&pdev->dev, "failed to start firmware\n");
1462 if (netif_running(netdev)) {
1463 err = netxen_nic_attach(adapter);
1467 err = netxen_nic_up(adapter, netdev);
1469 goto err_out_detach;
1471 netif_device_attach(netdev);
1473 netxen_config_indev_addr(netdev, NETDEV_UP);
1476 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1480 netxen_nic_detach(adapter);
1482 nx_decr_dev_ref_cnt(adapter);
1487 static int netxen_nic_open(struct net_device *netdev)
1489 struct netxen_adapter *adapter = netdev_priv(netdev);
1492 if (adapter->driver_mismatch)
1495 err = netxen_nic_attach(adapter);
1499 err = netxen_nic_up(adapter, netdev);
1503 netif_start_queue(netdev);
1508 netxen_nic_detach(adapter);
1513 * netxen_nic_close - Disables a network interface entry point
1515 static int netxen_nic_close(struct net_device *netdev)
1517 struct netxen_adapter *adapter = netdev_priv(netdev);
1519 netxen_nic_down(adapter, netdev);
1524 netxen_tso_check(struct net_device *netdev,
1525 struct nx_host_tx_ring *tx_ring,
1526 struct cmd_desc_type0 *first_desc,
1527 struct sk_buff *skb)
1529 u8 opcode = TX_ETHER_PKT;
1530 __be16 protocol = skb->protocol;
1531 u16 flags = 0, vid = 0;
1533 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1534 struct cmd_desc_type0 *hwdesc;
1535 struct vlan_ethhdr *vh;
1537 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1539 vh = (struct vlan_ethhdr *)skb->data;
1540 protocol = vh->h_vlan_encapsulated_proto;
1541 flags = FLAGS_VLAN_TAGGED;
1543 } else if (vlan_tx_tag_present(skb)) {
1545 flags = FLAGS_VLAN_OOB;
1546 vid = vlan_tx_tag_get(skb);
1547 netxen_set_tx_vlan_tci(first_desc, vid);
1551 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1552 skb_shinfo(skb)->gso_size > 0) {
1554 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1556 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1557 first_desc->total_hdr_length = hdr_len;
1559 first_desc->total_hdr_length += VLAN_HLEN;
1560 first_desc->tcp_hdr_offset = VLAN_HLEN;
1561 first_desc->ip_hdr_offset = VLAN_HLEN;
1562 /* Only in case of TSO on vlan device */
1563 flags |= FLAGS_VLAN_TAGGED;
1566 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1567 TX_TCP_LSO6 : TX_TCP_LSO;
1570 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1573 if (protocol == cpu_to_be16(ETH_P_IP)) {
1574 l4proto = ip_hdr(skb)->protocol;
1576 if (l4proto == IPPROTO_TCP)
1577 opcode = TX_TCP_PKT;
1578 else if(l4proto == IPPROTO_UDP)
1579 opcode = TX_UDP_PKT;
1580 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1581 l4proto = ipv6_hdr(skb)->nexthdr;
1583 if (l4proto == IPPROTO_TCP)
1584 opcode = TX_TCPV6_PKT;
1585 else if(l4proto == IPPROTO_UDP)
1586 opcode = TX_UDPV6_PKT;
1590 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1591 first_desc->ip_hdr_offset += skb_network_offset(skb);
1592 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1597 /* For LSO, we need to copy the MAC/IP/TCP headers into
1598 * the descriptor ring
1600 producer = tx_ring->producer;
1605 /* Create a TSO vlan header template for firmware */
1607 hwdesc = &tx_ring->desc_head[producer];
1608 tx_ring->cmd_buf_arr[producer].skb = NULL;
1610 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1611 hdr_len + VLAN_HLEN);
1613 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1614 skb_copy_from_linear_data(skb, vh, 12);
1615 vh->h_vlan_proto = htons(ETH_P_8021Q);
1616 vh->h_vlan_TCI = htons(vid);
1617 skb_copy_from_linear_data_offset(skb, 12,
1618 (char *)vh + 16, copy_len - 16);
1620 copied = copy_len - VLAN_HLEN;
1623 producer = get_next_index(producer, tx_ring->num_desc);
1626 while (copied < hdr_len) {
1628 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1629 (hdr_len - copied));
1631 hwdesc = &tx_ring->desc_head[producer];
1632 tx_ring->cmd_buf_arr[producer].skb = NULL;
1634 skb_copy_from_linear_data_offset(skb, copied,
1635 (char *)hwdesc + offset, copy_len);
1640 producer = get_next_index(producer, tx_ring->num_desc);
1643 tx_ring->producer = producer;
1648 netxen_map_tx_skb(struct pci_dev *pdev,
1649 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1651 struct netxen_skb_frag *nf;
1652 struct skb_frag_struct *frag;
1656 nr_frags = skb_shinfo(skb)->nr_frags;
1657 nf = &pbuf->frag_array[0];
1659 map = pci_map_single(pdev, skb->data,
1660 skb_headlen(skb), PCI_DMA_TODEVICE);
1661 if (pci_dma_mapping_error(pdev, map))
1665 nf->length = skb_headlen(skb);
1667 for (i = 0; i < nr_frags; i++) {
1668 frag = &skb_shinfo(skb)->frags[i];
1669 nf = &pbuf->frag_array[i+1];
1671 map = pci_map_page(pdev, frag->page, frag->page_offset,
1672 frag->size, PCI_DMA_TODEVICE);
1673 if (pci_dma_mapping_error(pdev, map))
1677 nf->length = frag->size;
1684 nf = &pbuf->frag_array[i+1];
1685 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1688 nf = &pbuf->frag_array[0];
1689 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1696 netxen_clear_cmddesc(u64 *desc)
1703 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1705 struct netxen_adapter *adapter = netdev_priv(netdev);
1706 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1707 struct netxen_cmd_buffer *pbuf;
1708 struct netxen_skb_frag *buffrag;
1709 struct cmd_desc_type0 *hwdesc, *first_desc;
1710 struct pci_dev *pdev;
1714 int frag_count, no_of_desc;
1715 u32 num_txd = tx_ring->num_desc;
1717 frag_count = skb_shinfo(skb)->nr_frags + 1;
1719 /* 4 fragments per cmd des */
1720 no_of_desc = (frag_count + 3) >> 2;
1722 if (unlikely(no_of_desc + 2 > netxen_tx_avail(tx_ring))) {
1723 netif_stop_queue(netdev);
1724 return NETDEV_TX_BUSY;
1727 producer = tx_ring->producer;
1728 pbuf = &tx_ring->cmd_buf_arr[producer];
1730 pdev = adapter->pdev;
1732 if (netxen_map_tx_skb(pdev, skb, pbuf))
1736 pbuf->frag_count = frag_count;
1738 first_desc = hwdesc = &tx_ring->desc_head[producer];
1739 netxen_clear_cmddesc((u64 *)hwdesc);
1741 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1742 netxen_set_tx_port(first_desc, adapter->portnum);
1744 for (i = 0; i < frag_count; i++) {
1748 if ((k == 0) && (i > 0)) {
1749 /* move to next desc.*/
1750 producer = get_next_index(producer, num_txd);
1751 hwdesc = &tx_ring->desc_head[producer];
1752 netxen_clear_cmddesc((u64 *)hwdesc);
1753 tx_ring->cmd_buf_arr[producer].skb = NULL;
1756 buffrag = &pbuf->frag_array[i];
1758 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
1761 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1764 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
1767 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
1770 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
1775 tx_ring->producer = get_next_index(producer, num_txd);
1777 netxen_tso_check(netdev, tx_ring, first_desc, skb);
1779 netxen_nic_update_cmd_producer(adapter, tx_ring);
1781 adapter->stats.txbytes += skb->len;
1782 adapter->stats.xmitcalled++;
1784 return NETDEV_TX_OK;
1787 adapter->stats.txdropped++;
1788 dev_kfree_skb_any(skb);
1789 return NETDEV_TX_OK;
1792 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1794 struct net_device *netdev = adapter->netdev;
1795 uint32_t temp, temp_state, temp_val;
1798 temp = NXRD32(adapter, CRB_TEMP_STATE);
1800 temp_state = nx_get_temp_state(temp);
1801 temp_val = nx_get_temp_val(temp);
1803 if (temp_state == NX_TEMP_PANIC) {
1805 "%s: Device temperature %d degrees C exceeds"
1806 " maximum allowed. Hardware has been shut down.\n",
1807 netdev->name, temp_val);
1809 } else if (temp_state == NX_TEMP_WARN) {
1810 if (adapter->temp == NX_TEMP_NORMAL) {
1812 "%s: Device temperature %d degrees C "
1813 "exceeds operating range."
1814 " Immediate action needed.\n",
1815 netdev->name, temp_val);
1818 if (adapter->temp == NX_TEMP_WARN) {
1820 "%s: Device temperature is now %d degrees C"
1821 " in normal range.\n", netdev->name,
1825 adapter->temp = temp_state;
1829 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
1831 struct net_device *netdev = adapter->netdev;
1833 if (adapter->ahw.linkup && !linkup) {
1834 printk(KERN_INFO "%s: %s NIC Link is down\n",
1835 netxen_nic_driver_name, netdev->name);
1836 adapter->ahw.linkup = 0;
1837 if (netif_running(netdev)) {
1838 netif_carrier_off(netdev);
1839 netif_stop_queue(netdev);
1841 adapter->link_changed = !adapter->has_link_events;
1842 } else if (!adapter->ahw.linkup && linkup) {
1843 printk(KERN_INFO "%s: %s NIC Link is up\n",
1844 netxen_nic_driver_name, netdev->name);
1845 adapter->ahw.linkup = 1;
1846 if (netif_running(netdev)) {
1847 netif_carrier_on(netdev);
1848 netif_wake_queue(netdev);
1850 adapter->link_changed = !adapter->has_link_events;
1854 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1856 u32 val, port, linkup;
1858 port = adapter->physical_port;
1860 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1861 val = NXRD32(adapter, CRB_XG_STATE_P3);
1862 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1863 linkup = (val == XG_LINK_UP_P3);
1865 val = NXRD32(adapter, CRB_XG_STATE);
1866 if (adapter->ahw.port_type == NETXEN_NIC_GBE)
1867 linkup = (val >> port) & 1;
1869 val = (val >> port*8) & 0xff;
1870 linkup = (val == XG_LINK_UP);
1874 netxen_advert_link_change(adapter, linkup);
1877 static void netxen_tx_timeout(struct net_device *netdev)
1879 struct netxen_adapter *adapter = netdev_priv(netdev);
1881 if (test_bit(__NX_RESETTING, &adapter->state))
1884 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
1885 schedule_work(&adapter->tx_timeout_task);
1888 static void netxen_tx_timeout_task(struct work_struct *work)
1890 struct netxen_adapter *adapter =
1891 container_of(work, struct netxen_adapter, tx_timeout_task);
1893 if (!netif_running(adapter->netdev))
1896 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1899 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
1902 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1903 /* try to scrub interrupt */
1904 netxen_napi_disable(adapter);
1906 adapter->netdev->trans_start = jiffies;
1908 netxen_napi_enable(adapter);
1910 netif_wake_queue(adapter->netdev);
1912 clear_bit(__NX_RESETTING, &adapter->state);
1915 clear_bit(__NX_RESETTING, &adapter->state);
1916 if (!netxen_nic_reset_context(adapter)) {
1917 adapter->netdev->trans_start = jiffies;
1921 /* context reset failed, fall through for fw reset */
1925 adapter->need_fw_reset = 1;
1928 struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
1930 struct netxen_adapter *adapter = netdev_priv(netdev);
1931 struct net_device_stats *stats = &netdev->stats;
1933 memset(stats, 0, sizeof(*stats));
1935 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
1936 stats->tx_packets = adapter->stats.xmitfinished;
1937 stats->rx_bytes = adapter->stats.rxbytes;
1938 stats->tx_bytes = adapter->stats.txbytes;
1939 stats->rx_dropped = adapter->stats.rxdropped;
1940 stats->tx_dropped = adapter->stats.txdropped;
1945 static irqreturn_t netxen_intr(int irq, void *data)
1947 struct nx_host_sds_ring *sds_ring = data;
1948 struct netxen_adapter *adapter = sds_ring->adapter;
1951 status = readl(adapter->isr_int_vec);
1953 if (!(status & adapter->int_vec_bit))
1956 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1957 /* check interrupt state machine, to be sure */
1958 status = readl(adapter->crb_int_state_reg);
1959 if (!ISR_LEGACY_INT_TRIGGERED(status))
1963 unsigned long our_int = 0;
1965 our_int = readl(adapter->crb_int_state_reg);
1967 /* not our interrupt */
1968 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
1971 /* claim interrupt */
1972 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
1974 /* clear interrupt */
1975 netxen_nic_disable_int(sds_ring);
1978 writel(0xffffffff, adapter->tgt_status_reg);
1979 /* read twice to ensure write is flushed */
1980 readl(adapter->isr_int_vec);
1981 readl(adapter->isr_int_vec);
1983 napi_schedule(&sds_ring->napi);
1988 static irqreturn_t netxen_msi_intr(int irq, void *data)
1990 struct nx_host_sds_ring *sds_ring = data;
1991 struct netxen_adapter *adapter = sds_ring->adapter;
1993 /* clear interrupt */
1994 writel(0xffffffff, adapter->tgt_status_reg);
1996 napi_schedule(&sds_ring->napi);
2000 static irqreturn_t netxen_msix_intr(int irq, void *data)
2002 struct nx_host_sds_ring *sds_ring = data;
2004 napi_schedule(&sds_ring->napi);
2008 static int netxen_nic_poll(struct napi_struct *napi, int budget)
2010 struct nx_host_sds_ring *sds_ring =
2011 container_of(napi, struct nx_host_sds_ring, napi);
2013 struct netxen_adapter *adapter = sds_ring->adapter;
2018 tx_complete = netxen_process_cmd_ring(adapter);
2020 work_done = netxen_process_rcv_ring(sds_ring, budget);
2022 if ((work_done < budget) && tx_complete) {
2023 napi_complete(&sds_ring->napi);
2024 if (netif_running(adapter->netdev))
2025 netxen_nic_enable_int(sds_ring);
2031 #ifdef CONFIG_NET_POLL_CONTROLLER
2032 static void netxen_nic_poll_controller(struct net_device *netdev)
2034 struct netxen_adapter *adapter = netdev_priv(netdev);
2035 disable_irq(adapter->irq);
2036 netxen_intr(adapter->irq, adapter);
2037 enable_irq(adapter->irq);
2042 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2045 if (netxen_api_lock(adapter))
2048 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2050 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2052 netxen_api_unlock(adapter);
2057 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2060 if (netxen_api_lock(adapter))
2063 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2064 WARN_ON(count == 0);
2066 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2069 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2071 netxen_api_unlock(adapter);
2076 nx_dev_request_reset(struct netxen_adapter *adapter)
2080 if (netxen_api_lock(adapter))
2083 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2085 if (state != NX_DEV_INITALIZING)
2086 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2088 netxen_api_unlock(adapter);
2092 netxen_can_start_firmware(struct netxen_adapter *adapter)
2097 if (netxen_api_lock(adapter))
2100 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2102 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2107 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2110 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2112 netxen_api_unlock(adapter);
2118 netxen_schedule_work(struct netxen_adapter *adapter,
2119 work_func_t func, int delay)
2121 INIT_DELAYED_WORK(&adapter->fw_work, func);
2122 schedule_delayed_work(&adapter->fw_work, delay);
2126 netxen_cancel_fw_work(struct netxen_adapter *adapter)
2128 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2131 cancel_delayed_work_sync(&adapter->fw_work);
2135 netxen_attach_work(struct work_struct *work)
2137 struct netxen_adapter *adapter = container_of(work,
2138 struct netxen_adapter, fw_work.work);
2139 struct net_device *netdev = adapter->netdev;
2142 if (netif_running(netdev)) {
2143 err = netxen_nic_attach(adapter);
2147 err = netxen_nic_up(adapter, netdev);
2149 netxen_nic_detach(adapter);
2153 netxen_config_indev_addr(netdev, NETDEV_UP);
2156 netif_device_attach(netdev);
2159 adapter->fw_fail_cnt = 0;
2160 clear_bit(__NX_RESETTING, &adapter->state);
2161 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2165 netxen_fwinit_work(struct work_struct *work)
2167 struct netxen_adapter *adapter = container_of(work,
2168 struct netxen_adapter, fw_work.work);
2171 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2173 switch (dev_state) {
2176 if (!netxen_start_firmware(adapter)) {
2177 netxen_schedule_work(adapter, netxen_attach_work, 0);
2182 case NX_DEV_INITALIZING:
2183 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2184 netxen_schedule_work(adapter,
2185 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2195 nx_incr_dev_ref_cnt(adapter);
2196 clear_bit(__NX_RESETTING, &adapter->state);
2200 netxen_detach_work(struct work_struct *work)
2202 struct netxen_adapter *adapter = container_of(work,
2203 struct netxen_adapter, fw_work.work);
2204 struct net_device *netdev = adapter->netdev;
2208 netif_device_detach(netdev);
2210 if (netif_running(netdev))
2211 netxen_nic_down(adapter, netdev);
2213 netxen_nic_detach(adapter);
2215 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2217 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2219 if (status & NX_RCODE_FATAL_ERROR)
2222 if (adapter->temp == NX_TEMP_PANIC)
2225 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2227 adapter->fw_wait_cnt = 0;
2228 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2232 netxen_check_health(struct netxen_adapter *adapter)
2234 u32 state, heartbit;
2235 struct net_device *netdev = adapter->netdev;
2237 if (netxen_nic_check_temp(adapter))
2240 if (adapter->need_fw_reset) {
2241 nx_dev_request_reset(adapter);
2245 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2246 if (state == NX_DEV_NEED_RESET)
2249 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2252 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2253 if (heartbit != adapter->heartbit) {
2254 adapter->heartbit = heartbit;
2255 adapter->fw_fail_cnt = 0;
2259 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2262 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2264 dev_info(&netdev->dev, "firmware hang detected\n");
2267 if (!test_and_set_bit(__NX_RESETTING, &adapter->state))
2268 netxen_schedule_work(adapter, netxen_detach_work, 0);
2273 netxen_fw_poll_work(struct work_struct *work)
2275 struct netxen_adapter *adapter = container_of(work,
2276 struct netxen_adapter, fw_work.work);
2278 if (test_bit(__NX_RESETTING, &adapter->state))
2281 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2282 if (!adapter->has_link_events) {
2284 netxen_nic_handle_phy_intr(adapter);
2286 if (adapter->link_changed)
2287 netxen_nic_set_link_parameters(adapter);
2291 if (netxen_check_health(adapter))
2295 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2299 netxen_store_bridged_mode(struct device *dev,
2300 struct device_attribute *attr, const char *buf, size_t len)
2302 struct net_device *net = to_net_dev(dev);
2303 struct netxen_adapter *adapter = netdev_priv(net);
2307 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2310 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2313 if (strict_strtoul(buf, 2, &new))
2316 if (!netxen_config_bridged_mode(adapter, !!new))
2324 netxen_show_bridged_mode(struct device *dev,
2325 struct device_attribute *attr, char *buf)
2327 struct net_device *net = to_net_dev(dev);
2328 struct netxen_adapter *adapter;
2329 int bridged_mode = 0;
2331 adapter = netdev_priv(net);
2333 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2334 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2336 return sprintf(buf, "%d\n", bridged_mode);
2339 static struct device_attribute dev_attr_bridged_mode = {
2340 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2341 .show = netxen_show_bridged_mode,
2342 .store = netxen_store_bridged_mode,
2346 netxen_store_diag_mode(struct device *dev,
2347 struct device_attribute *attr, const char *buf, size_t len)
2349 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2352 if (strict_strtoul(buf, 2, &new))
2355 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2356 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2362 netxen_show_diag_mode(struct device *dev,
2363 struct device_attribute *attr, char *buf)
2365 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2367 return sprintf(buf, "%d\n",
2368 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2371 static struct device_attribute dev_attr_diag_mode = {
2372 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2373 .show = netxen_show_diag_mode,
2374 .store = netxen_store_diag_mode,
2378 netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2379 loff_t offset, size_t size)
2381 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2384 if ((size != 4) || (offset & 0x3))
2387 if (offset < NETXEN_PCI_CRBSPACE)
2394 netxen_sysfs_read_crb(struct kobject *kobj, struct bin_attribute *attr,
2395 char *buf, loff_t offset, size_t size)
2397 struct device *dev = container_of(kobj, struct device, kobj);
2398 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2402 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2406 data = NXRD32(adapter, offset);
2407 memcpy(buf, &data, size);
2412 netxen_sysfs_write_crb(struct kobject *kobj, struct bin_attribute *attr,
2413 char *buf, loff_t offset, size_t size)
2415 struct device *dev = container_of(kobj, struct device, kobj);
2416 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2420 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2424 memcpy(&data, buf, size);
2425 NXWR32(adapter, offset, data);
2430 netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2431 loff_t offset, size_t size)
2433 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2436 if ((size != 8) || (offset & 0x7))
2443 netxen_sysfs_read_mem(struct kobject *kobj, struct bin_attribute *attr,
2444 char *buf, loff_t offset, size_t size)
2446 struct device *dev = container_of(kobj, struct device, kobj);
2447 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2451 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2455 if (adapter->pci_mem_read(adapter, offset, &data))
2458 memcpy(buf, &data, size);
2463 ssize_t netxen_sysfs_write_mem(struct kobject *kobj,
2464 struct bin_attribute *attr, char *buf,
2465 loff_t offset, size_t size)
2467 struct device *dev = container_of(kobj, struct device, kobj);
2468 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2472 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2476 memcpy(&data, buf, size);
2478 if (adapter->pci_mem_write(adapter, offset, data))
2485 static struct bin_attribute bin_attr_crb = {
2486 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2488 .read = netxen_sysfs_read_crb,
2489 .write = netxen_sysfs_write_crb,
2492 static struct bin_attribute bin_attr_mem = {
2493 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2495 .read = netxen_sysfs_read_mem,
2496 .write = netxen_sysfs_write_mem,
2500 netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2502 struct net_device *netdev = adapter->netdev;
2503 struct device *dev = &netdev->dev;
2505 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2506 /* bridged_mode control */
2507 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2508 dev_warn(&netdev->dev,
2509 "failed to create bridged_mode sysfs entry\n");
2515 netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2517 struct net_device *netdev = adapter->netdev;
2518 struct device *dev = &netdev->dev;
2520 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2521 device_remove_file(dev, &dev_attr_bridged_mode);
2525 netxen_create_diag_entries(struct netxen_adapter *adapter)
2527 struct pci_dev *pdev = adapter->pdev;
2531 if (device_create_file(dev, &dev_attr_diag_mode))
2532 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2533 if (device_create_bin_file(dev, &bin_attr_crb))
2534 dev_info(dev, "failed to create crb sysfs entry\n");
2535 if (device_create_bin_file(dev, &bin_attr_mem))
2536 dev_info(dev, "failed to create mem sysfs entry\n");
2541 netxen_remove_diag_entries(struct netxen_adapter *adapter)
2543 struct pci_dev *pdev = adapter->pdev;
2544 struct device *dev = &pdev->dev;
2546 device_remove_file(dev, &dev_attr_diag_mode);
2547 device_remove_bin_file(dev, &bin_attr_crb);
2548 device_remove_bin_file(dev, &bin_attr_mem);
2553 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2556 netxen_destip_supported(struct netxen_adapter *adapter)
2558 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2561 if (adapter->ahw.cut_through)
2568 netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2570 struct in_device *indev;
2571 struct netxen_adapter *adapter = netdev_priv(dev);
2573 if (!netxen_destip_supported(adapter))
2576 indev = in_dev_get(dev);
2583 netxen_config_ipaddr(adapter,
2584 ifa->ifa_address, NX_IP_UP);
2587 netxen_config_ipaddr(adapter,
2588 ifa->ifa_address, NX_IP_DOWN);
2593 } endfor_ifa(indev);
2599 static int netxen_netdev_event(struct notifier_block *this,
2600 unsigned long event, void *ptr)
2602 struct netxen_adapter *adapter;
2603 struct net_device *dev = (struct net_device *)ptr;
2609 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2610 dev = vlan_dev_real_dev(dev);
2614 if (!is_netxen_netdev(dev))
2617 adapter = netdev_priv(dev);
2622 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2625 netxen_config_indev_addr(dev, event);
2631 netxen_inetaddr_event(struct notifier_block *this,
2632 unsigned long event, void *ptr)
2634 struct netxen_adapter *adapter;
2635 struct net_device *dev;
2637 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2639 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2642 if (dev == NULL || !netif_running(dev))
2645 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2646 dev = vlan_dev_real_dev(dev);
2650 if (!is_netxen_netdev(dev))
2653 adapter = netdev_priv(dev);
2655 if (!adapter || !netxen_destip_supported(adapter))
2658 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2663 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2666 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2676 static struct notifier_block netxen_netdev_cb = {
2677 .notifier_call = netxen_netdev_event,
2680 static struct notifier_block netxen_inetaddr_cb = {
2681 .notifier_call = netxen_inetaddr_event,
2685 netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2689 static struct pci_driver netxen_driver = {
2690 .name = netxen_nic_driver_name,
2691 .id_table = netxen_pci_tbl,
2692 .probe = netxen_nic_probe,
2693 .remove = __devexit_p(netxen_nic_remove),
2695 .suspend = netxen_nic_suspend,
2696 .resume = netxen_nic_resume,
2698 .shutdown = netxen_nic_shutdown
2701 static int __init netxen_init_module(void)
2703 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2706 register_netdevice_notifier(&netxen_netdev_cb);
2707 register_inetaddr_notifier(&netxen_inetaddr_cb);
2710 return pci_register_driver(&netxen_driver);
2713 module_init(netxen_init_module);
2715 static void __exit netxen_exit_module(void)
2717 pci_unregister_driver(&netxen_driver);
2720 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2721 unregister_netdevice_notifier(&netxen_netdev_cb);
2725 module_exit(netxen_exit_module);