2 * Copyright (C) 2003 - 2009 NetXen, Inc.
3 * Copyright (C) 2009 - QLogic Corporation.
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
11 * This program is distributed in the hope that it will be useful, but
12 * WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
21 * The full GNU General Public License is included in this distribution
22 * in the file called "COPYING".
26 #include <linux/slab.h>
27 #include <linux/vmalloc.h>
28 #include <linux/interrupt.h>
29 #include "netxen_nic_hw.h"
31 #include "netxen_nic.h"
33 #include <linux/dma-mapping.h>
34 #include <linux/if_vlan.h>
36 #include <linux/ipv6.h>
37 #include <linux/inetdevice.h>
38 #include <linux/sysfs.h>
39 #include <linux/aer.h>
41 MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Converged Ethernet Driver");
42 MODULE_LICENSE("GPL");
43 MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
44 MODULE_FIRMWARE(NX_P2_MN_ROMIMAGE_NAME);
45 MODULE_FIRMWARE(NX_P3_CT_ROMIMAGE_NAME);
46 MODULE_FIRMWARE(NX_P3_MN_ROMIMAGE_NAME);
47 MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
49 char netxen_nic_driver_name[] = "netxen_nic";
50 static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
51 NETXEN_NIC_LINUX_VERSIONID;
53 static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
55 /* Default to restricted 1G auto-neg mode */
56 static int wol_port_mode = 5;
58 static int use_msi = 1;
60 static int use_msi_x = 1;
62 static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
63 module_param(auto_fw_reset, int, 0644);
64 MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
66 static int __devinit netxen_nic_probe(struct pci_dev *pdev,
67 const struct pci_device_id *ent);
68 static void __devexit netxen_nic_remove(struct pci_dev *pdev);
69 static int netxen_nic_open(struct net_device *netdev);
70 static int netxen_nic_close(struct net_device *netdev);
71 static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
73 static void netxen_tx_timeout(struct net_device *netdev);
74 static void netxen_tx_timeout_task(struct work_struct *work);
75 static void netxen_fw_poll_work(struct work_struct *work);
76 static void netxen_schedule_work(struct netxen_adapter *adapter,
77 work_func_t func, int delay);
78 static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
79 static int netxen_nic_poll(struct napi_struct *napi, int budget);
80 #ifdef CONFIG_NET_POLL_CONTROLLER
81 static void netxen_nic_poll_controller(struct net_device *netdev);
84 static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
85 static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
86 static void netxen_create_diag_entries(struct netxen_adapter *adapter);
87 static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
89 static int nx_dev_request_aer(struct netxen_adapter *adapter);
90 static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
91 static int netxen_can_start_firmware(struct netxen_adapter *adapter);
93 static irqreturn_t netxen_intr(int irq, void *data);
94 static irqreturn_t netxen_msi_intr(int irq, void *data);
95 static irqreturn_t netxen_msix_intr(int irq, void *data);
97 static void netxen_config_indev_addr(struct net_device *dev, unsigned long);
99 /* PCI Device ID Table */
100 #define ENTRY(device) \
101 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
102 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
104 static DEFINE_PCI_DEVICE_TABLE(netxen_pci_tbl) = {
105 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
106 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
107 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
108 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
109 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
110 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
111 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
112 ENTRY(PCI_DEVICE_ID_NX3031),
116 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
118 static uint32_t crb_cmd_producer[4] = {
119 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
120 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
124 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
125 struct nx_host_tx_ring *tx_ring)
127 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
130 static uint32_t crb_cmd_consumer[4] = {
131 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
132 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
136 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
137 struct nx_host_tx_ring *tx_ring)
139 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
142 static uint32_t msi_tgt_status[8] = {
143 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
144 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
145 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
146 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
149 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
151 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
153 struct netxen_adapter *adapter = sds_ring->adapter;
155 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
158 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
160 struct netxen_adapter *adapter = sds_ring->adapter;
162 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
164 if (!NETXEN_IS_MSI_FAMILY(adapter))
165 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
169 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
171 int size = sizeof(struct nx_host_sds_ring) * count;
173 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
175 return recv_ctx->sds_rings == NULL;
179 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
181 if (recv_ctx->sds_rings != NULL)
182 kfree(recv_ctx->sds_rings);
184 recv_ctx->sds_rings = NULL;
188 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
191 struct nx_host_sds_ring *sds_ring;
192 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
194 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
197 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
198 sds_ring = &recv_ctx->sds_rings[ring];
199 netif_napi_add(netdev, &sds_ring->napi,
200 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
207 netxen_napi_del(struct netxen_adapter *adapter)
210 struct nx_host_sds_ring *sds_ring;
211 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
213 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
214 sds_ring = &recv_ctx->sds_rings[ring];
215 netif_napi_del(&sds_ring->napi);
218 netxen_free_sds_rings(&adapter->recv_ctx);
222 netxen_napi_enable(struct netxen_adapter *adapter)
225 struct nx_host_sds_ring *sds_ring;
226 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
228 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
229 sds_ring = &recv_ctx->sds_rings[ring];
230 napi_enable(&sds_ring->napi);
231 netxen_nic_enable_int(sds_ring);
236 netxen_napi_disable(struct netxen_adapter *adapter)
239 struct nx_host_sds_ring *sds_ring;
240 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
242 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
243 sds_ring = &recv_ctx->sds_rings[ring];
244 netxen_nic_disable_int(sds_ring);
245 napi_synchronize(&sds_ring->napi);
246 napi_disable(&sds_ring->napi);
250 static int nx_set_dma_mask(struct netxen_adapter *adapter)
252 struct pci_dev *pdev = adapter->pdev;
253 uint64_t mask, cmask;
255 adapter->pci_using_dac = 0;
257 mask = DMA_BIT_MASK(32);
258 cmask = DMA_BIT_MASK(32);
260 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
262 mask = DMA_BIT_MASK(35);
265 mask = DMA_BIT_MASK(39);
269 if (pci_set_dma_mask(pdev, mask) == 0 &&
270 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
271 adapter->pci_using_dac = 1;
278 /* Update addressable range if firmware supports it */
280 nx_update_dma_mask(struct netxen_adapter *adapter)
282 int change, shift, err;
283 uint64_t mask, old_mask, old_cmask;
284 struct pci_dev *pdev = adapter->pdev;
288 shift = NXRD32(adapter, CRB_DMA_SHIFT);
292 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
294 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
298 old_mask = pdev->dma_mask;
299 old_cmask = pdev->dev.coherent_dma_mask;
301 mask = DMA_BIT_MASK(32+shift);
303 err = pci_set_dma_mask(pdev, mask);
307 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
309 err = pci_set_consistent_dma_mask(pdev, mask);
313 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
319 pci_set_dma_mask(pdev, old_mask);
320 pci_set_consistent_dma_mask(pdev, old_cmask);
325 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
329 if (first_boot == 0x55555555) {
330 /* This is the first boot after power up */
331 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
333 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
336 /* PCI bus master workaround */
337 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
338 if (!(first_boot & 0x4)) {
340 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
341 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
344 /* This is the first boot after power up */
345 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
346 if (first_boot != 0x80000f) {
347 /* clear the register for future unloads/loads */
348 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
352 /* Start P2 boot loader */
353 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
354 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
358 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
360 if (++timeout > 5000)
363 } while (val == NETXEN_BDINFO_MAGIC);
368 static void netxen_set_port_mode(struct netxen_adapter *adapter)
372 val = adapter->ahw.board_type;
373 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
374 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
375 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
376 data = NETXEN_PORT_MODE_802_3_AP;
377 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
378 } else if (port_mode == NETXEN_PORT_MODE_XG) {
379 data = NETXEN_PORT_MODE_XG;
380 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
381 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
382 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
383 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
384 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
385 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
386 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
388 data = NETXEN_PORT_MODE_AUTO_NEG;
389 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
392 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
393 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
394 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
395 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
396 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
398 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
402 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
407 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
409 pci_read_config_dword(pdev, pos, &control);
411 control |= PCI_MSIX_FLAGS_ENABLE;
414 pci_write_config_dword(pdev, pos, control);
418 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
422 for (i = 0; i < count; i++)
423 adapter->msix_entries[i].entry = i;
427 netxen_read_mac_addr(struct netxen_adapter *adapter)
432 struct net_device *netdev = adapter->netdev;
433 struct pci_dev *pdev = adapter->pdev;
435 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
436 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
439 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
443 p = (unsigned char *)&mac_addr;
444 for (i = 0; i < 6; i++)
445 netdev->dev_addr[i] = *(p + 5 - i);
447 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
448 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
450 /* set station address */
452 if (!is_valid_ether_addr(netdev->perm_addr))
453 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
458 int netxen_nic_set_mac(struct net_device *netdev, void *p)
460 struct netxen_adapter *adapter = netdev_priv(netdev);
461 struct sockaddr *addr = p;
463 if (!is_valid_ether_addr(addr->sa_data))
466 if (netif_running(netdev)) {
467 netif_device_detach(netdev);
468 netxen_napi_disable(adapter);
471 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
472 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
473 adapter->macaddr_set(adapter, addr->sa_data);
475 if (netif_running(netdev)) {
476 netif_device_attach(netdev);
477 netxen_napi_enable(adapter);
482 static void netxen_set_multicast_list(struct net_device *dev)
484 struct netxen_adapter *adapter = netdev_priv(dev);
486 adapter->set_multi(dev);
489 static const struct net_device_ops netxen_netdev_ops = {
490 .ndo_open = netxen_nic_open,
491 .ndo_stop = netxen_nic_close,
492 .ndo_start_xmit = netxen_nic_xmit_frame,
493 .ndo_get_stats = netxen_nic_get_stats,
494 .ndo_validate_addr = eth_validate_addr,
495 .ndo_set_multicast_list = netxen_set_multicast_list,
496 .ndo_set_mac_address = netxen_nic_set_mac,
497 .ndo_change_mtu = netxen_nic_change_mtu,
498 .ndo_tx_timeout = netxen_tx_timeout,
499 #ifdef CONFIG_NET_POLL_CONTROLLER
500 .ndo_poll_controller = netxen_nic_poll_controller,
505 netxen_setup_intr(struct netxen_adapter *adapter)
507 struct netxen_legacy_intr_set *legacy_intrp;
508 struct pci_dev *pdev = adapter->pdev;
511 if (adapter->rss_supported) {
512 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
513 MSIX_ENTRIES_PER_ADAPTER : 2;
517 adapter->max_sds_rings = 1;
519 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
521 if (adapter->ahw.revision_id >= NX_P3_B0)
522 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
524 legacy_intrp = &legacy_intr[0];
526 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
527 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
528 legacy_intrp->tgt_status_reg);
529 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
530 legacy_intrp->tgt_mask_reg);
531 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
532 legacy_intrp->pci_int_reg);
533 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
535 if (adapter->ahw.revision_id >= NX_P3_B1)
536 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
539 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
542 netxen_set_msix_bit(pdev, 0);
544 if (adapter->msix_supported) {
546 netxen_init_msix_entries(adapter, num_msix);
547 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
549 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
550 netxen_set_msix_bit(pdev, 1);
552 if (adapter->rss_supported)
553 adapter->max_sds_rings = num_msix;
555 dev_info(&pdev->dev, "using msi-x interrupts\n");
560 pci_disable_msix(pdev);
562 /* fall through for msi */
565 if (use_msi && !pci_enable_msi(pdev)) {
566 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
567 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
568 msi_tgt_status[adapter->ahw.pci_func]);
569 dev_info(&pdev->dev, "using msi interrupts\n");
570 adapter->msix_entries[0].vector = pdev->irq;
574 dev_info(&pdev->dev, "using legacy interrupts\n");
575 adapter->msix_entries[0].vector = pdev->irq;
579 netxen_teardown_intr(struct netxen_adapter *adapter)
581 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
582 pci_disable_msix(adapter->pdev);
583 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
584 pci_disable_msi(adapter->pdev);
588 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
590 if (adapter->ahw.db_base != NULL)
591 iounmap(adapter->ahw.db_base);
592 if (adapter->ahw.pci_base0 != NULL)
593 iounmap(adapter->ahw.pci_base0);
594 if (adapter->ahw.pci_base1 != NULL)
595 iounmap(adapter->ahw.pci_base1);
596 if (adapter->ahw.pci_base2 != NULL)
597 iounmap(adapter->ahw.pci_base2);
601 netxen_setup_pci_map(struct netxen_adapter *adapter)
603 void __iomem *db_ptr = NULL;
605 resource_size_t mem_base, db_base;
606 unsigned long mem_len, db_len = 0;
608 struct pci_dev *pdev = adapter->pdev;
609 int pci_func = adapter->ahw.pci_func;
610 struct netxen_hardware_context *ahw = &adapter->ahw;
615 * Set the CRB window to invalid. If any register in window 0 is
616 * accessed it should set the window to 0 and then reset it to 1.
618 adapter->ahw.crb_win = -1;
619 adapter->ahw.ocm_win = -1;
621 /* remap phys address */
622 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
623 mem_len = pci_resource_len(pdev, 0);
625 /* 128 Meg of memory */
626 if (mem_len == NETXEN_PCI_128MB_SIZE) {
628 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
629 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
630 SECOND_PAGE_GROUP_SIZE);
631 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
632 THIRD_PAGE_GROUP_SIZE);
633 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
634 ahw->pci_base2 == NULL) {
635 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
640 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
642 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
644 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
645 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
646 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
647 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
648 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
653 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
655 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
656 if (ahw->pci_base0 == NULL) {
657 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
660 ahw->pci_len0 = mem_len;
665 netxen_setup_hwops(adapter);
667 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
669 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
670 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
671 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
673 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
674 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
675 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
678 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
681 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
682 db_len = pci_resource_len(pdev, 4);
685 printk(KERN_ERR "%s: doorbell is disabled\n",
686 netxen_nic_driver_name);
691 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
693 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
694 netxen_nic_driver_name);
700 adapter->ahw.db_base = db_ptr;
701 adapter->ahw.db_len = db_len;
705 netxen_cleanup_pci_map(adapter);
710 netxen_check_options(struct netxen_adapter *adapter)
712 u32 fw_major, fw_minor, fw_build;
713 char brd_name[NETXEN_MAX_SHORT_NAME];
717 struct pci_dev *pdev = adapter->pdev;
719 adapter->driver_mismatch = 0;
721 ptr32 = (int *)&serial_num;
722 offset = NX_FW_SERIAL_NUM_OFFSET;
723 for (i = 0; i < 8; i++) {
724 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
725 dev_err(&pdev->dev, "error reading board info\n");
726 adapter->driver_mismatch = 1;
729 ptr32[i] = cpu_to_le32(val);
730 offset += sizeof(u32);
733 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
734 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
735 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
737 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
739 if (adapter->portnum == 0) {
740 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
742 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
743 module_name(THIS_MODULE),
744 brd_name, serial_num, adapter->ahw.revision_id);
747 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
748 adapter->driver_mismatch = 1;
749 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
750 fw_major, fw_minor, fw_build);
754 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
755 i = NXRD32(adapter, NETXEN_SRE_MISC);
756 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
759 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
760 fw_major, fw_minor, fw_build,
761 adapter->ahw.cut_through ? "cut-through" : "legacy");
763 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
764 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
766 adapter->flags &= ~NETXEN_NIC_LRO_ENABLED;
768 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
769 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
770 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
771 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
772 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
773 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
776 adapter->msix_supported = 0;
777 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
778 adapter->msix_supported = !!use_msi_x;
779 adapter->rss_supported = !!use_msi_x;
782 netxen_rom_fast_read(adapter,
783 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
784 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
786 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
787 switch (adapter->ahw.board_type) {
788 case NETXEN_BRDTYPE_P2_SB31_10G:
789 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
790 adapter->msix_supported = !!use_msi_x;
791 adapter->rss_supported = !!use_msi_x;
799 adapter->num_txd = MAX_CMD_DESCRIPTORS;
801 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
802 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
803 adapter->max_rds_rings = 3;
805 adapter->num_lro_rxd = 0;
806 adapter->max_rds_rings = 2;
811 netxen_start_firmware(struct netxen_adapter *adapter)
813 int val, err, first_boot;
814 struct pci_dev *pdev = adapter->pdev;
816 /* required for NX2031 dummy dma */
817 err = nx_set_dma_mask(adapter);
821 if (!netxen_can_start_firmware(adapter))
824 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
826 err = netxen_check_hw_init(adapter, first_boot);
828 dev_err(&pdev->dev, "error in init HW init sequence\n");
832 netxen_request_firmware(adapter);
834 err = netxen_need_fw_reset(adapter);
840 if (first_boot != 0x55555555) {
841 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
842 netxen_pinit_from_rom(adapter);
846 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
847 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
848 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
850 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
851 netxen_set_port_mode(adapter);
853 err = netxen_load_firmware(adapter);
857 netxen_release_firmware(adapter);
859 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
861 /* Initialize multicast addr pool owners */
863 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
865 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
869 err = netxen_init_dummy_dma(adapter);
874 * Tell the hardware our version number.
876 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
877 | ((_NETXEN_NIC_LINUX_MINOR << 8))
878 | (_NETXEN_NIC_LINUX_SUBVERSION);
879 NXWR32(adapter, CRB_DRIVER_VERSION, val);
882 /* Handshake with the card before we register the devices. */
883 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
885 netxen_free_dummy_dma(adapter);
889 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
891 nx_update_dma_mask(adapter);
893 netxen_check_options(adapter);
895 adapter->need_fw_reset = 0;
897 /* fall through and release firmware */
900 netxen_release_firmware(adapter);
905 netxen_nic_request_irq(struct netxen_adapter *adapter)
907 irq_handler_t handler;
908 struct nx_host_sds_ring *sds_ring;
911 unsigned long flags = IRQF_SAMPLE_RANDOM;
912 struct net_device *netdev = adapter->netdev;
913 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
915 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
916 handler = netxen_msix_intr;
917 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
918 handler = netxen_msi_intr;
920 flags |= IRQF_SHARED;
921 handler = netxen_intr;
923 adapter->irq = netdev->irq;
925 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
926 sds_ring = &recv_ctx->sds_rings[ring];
927 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
928 err = request_irq(sds_ring->irq, handler,
929 flags, sds_ring->name, sds_ring);
938 netxen_nic_free_irq(struct netxen_adapter *adapter)
941 struct nx_host_sds_ring *sds_ring;
943 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
945 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
946 sds_ring = &recv_ctx->sds_rings[ring];
947 free_irq(sds_ring->irq, sds_ring);
952 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
954 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
955 adapter->coal.normal.data.rx_time_us =
956 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
957 adapter->coal.normal.data.rx_packets =
958 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
959 adapter->coal.normal.data.tx_time_us =
960 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
961 adapter->coal.normal.data.tx_packets =
962 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
967 __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
971 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
974 err = adapter->init_port(adapter, adapter->physical_port);
976 printk(KERN_ERR "%s: Failed to initialize port %d\n",
977 netxen_nic_driver_name, adapter->portnum);
980 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
981 adapter->macaddr_set(adapter, adapter->mac_addr);
983 adapter->set_multi(netdev);
984 adapter->set_mtu(adapter, netdev->mtu);
986 adapter->ahw.linkup = 0;
988 if (adapter->max_sds_rings > 1)
989 netxen_config_rss(adapter, 1);
991 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
992 netxen_config_intr_coalesce(adapter);
994 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
995 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
997 netxen_napi_enable(adapter);
999 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1000 netxen_linkevent_request(adapter, 1);
1002 netxen_nic_set_link_parameters(adapter);
1004 set_bit(__NX_DEV_UP, &adapter->state);
1008 /* Usage: During resume and firmware recovery module.*/
1011 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1016 if (netif_running(netdev))
1017 err = __netxen_nic_up(adapter, netdev);
1023 /* with rtnl_lock */
1025 __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1027 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1030 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1034 spin_lock(&adapter->tx_clean_lock);
1035 netif_carrier_off(netdev);
1036 netif_tx_disable(netdev);
1038 if (adapter->stop_port)
1039 adapter->stop_port(adapter);
1041 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1042 netxen_p3_free_mac_list(adapter);
1044 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1046 netxen_napi_disable(adapter);
1048 netxen_release_tx_buffers(adapter);
1049 spin_unlock(&adapter->tx_clean_lock);
1052 /* Usage: During suspend and firmware recovery module */
1055 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1058 if (netif_running(netdev))
1059 __netxen_nic_down(adapter, netdev);
1065 netxen_nic_attach(struct netxen_adapter *adapter)
1067 struct net_device *netdev = adapter->netdev;
1068 struct pci_dev *pdev = adapter->pdev;
1070 struct nx_host_rds_ring *rds_ring;
1071 struct nx_host_tx_ring *tx_ring;
1073 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1076 err = netxen_init_firmware(adapter);
1080 err = netxen_napi_add(adapter, netdev);
1084 err = netxen_alloc_sw_resources(adapter);
1086 printk(KERN_ERR "%s: Error in setting sw resources\n",
1091 err = netxen_alloc_hw_resources(adapter);
1093 printk(KERN_ERR "%s: Error in setting hw resources\n",
1095 goto err_out_free_sw;
1098 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1099 tx_ring = adapter->tx_ring;
1100 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1101 crb_cmd_producer[adapter->portnum]);
1102 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1103 crb_cmd_consumer[adapter->portnum]);
1105 tx_ring->producer = 0;
1106 tx_ring->sw_consumer = 0;
1108 netxen_nic_update_cmd_producer(adapter, tx_ring);
1109 netxen_nic_update_cmd_consumer(adapter, tx_ring);
1112 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1113 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1114 netxen_post_rx_buffers(adapter, ring, rds_ring);
1117 err = netxen_nic_request_irq(adapter);
1119 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1121 goto err_out_free_rxbuf;
1124 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1125 netxen_nic_init_coalesce_defaults(adapter);
1127 netxen_create_sysfs_entries(adapter);
1129 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1133 netxen_release_rx_buffers(adapter);
1134 netxen_free_hw_resources(adapter);
1136 netxen_free_sw_resources(adapter);
1141 netxen_nic_detach(struct netxen_adapter *adapter)
1143 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1146 netxen_remove_sysfs_entries(adapter);
1148 netxen_free_hw_resources(adapter);
1149 netxen_release_rx_buffers(adapter);
1150 netxen_nic_free_irq(adapter);
1151 netxen_napi_del(adapter);
1152 netxen_free_sw_resources(adapter);
1158 netxen_nic_reset_context(struct netxen_adapter *adapter)
1161 struct net_device *netdev = adapter->netdev;
1163 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1166 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1168 netif_device_detach(netdev);
1170 if (netif_running(netdev))
1171 __netxen_nic_down(adapter, netdev);
1173 netxen_nic_detach(adapter);
1175 if (netif_running(netdev)) {
1176 err = netxen_nic_attach(adapter);
1178 err = __netxen_nic_up(adapter, netdev);
1184 netif_device_attach(netdev);
1188 clear_bit(__NX_RESETTING, &adapter->state);
1193 netxen_setup_netdev(struct netxen_adapter *adapter,
1194 struct net_device *netdev)
1197 struct pci_dev *pdev = adapter->pdev;
1199 adapter->rx_csum = 1;
1200 adapter->mc_enabled = 0;
1201 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1202 adapter->max_mc_count = 38;
1204 adapter->max_mc_count = 16;
1206 netdev->netdev_ops = &netxen_netdev_ops;
1207 netdev->watchdog_timeo = 5*HZ;
1209 netxen_nic_change_mtu(netdev, netdev->mtu);
1211 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1213 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1214 netdev->features |= (NETIF_F_GRO);
1215 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1217 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1218 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1219 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1222 if (adapter->pci_using_dac) {
1223 netdev->features |= NETIF_F_HIGHDMA;
1224 netdev->vlan_features |= NETIF_F_HIGHDMA;
1227 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1228 netdev->features |= (NETIF_F_HW_VLAN_TX);
1230 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1231 netdev->features |= NETIF_F_LRO;
1233 netdev->irq = adapter->msix_entries[0].vector;
1235 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1237 if (netxen_read_mac_addr(adapter))
1238 dev_warn(&pdev->dev, "failed to read mac addr\n");
1240 netif_carrier_off(netdev);
1241 netif_stop_queue(netdev);
1243 err = register_netdev(netdev);
1245 dev_err(&pdev->dev, "failed to register net device\n");
1252 #ifdef CONFIG_PCIEAER
1253 static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1255 struct pci_dev *pdev = adapter->pdev;
1256 struct pci_dev *root = pdev->bus->self;
1259 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1260 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1263 if (root->pcie_type != PCI_EXP_TYPE_ROOT_PORT)
1266 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1270 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1274 static int __devinit
1275 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1277 struct net_device *netdev = NULL;
1278 struct netxen_adapter *adapter = NULL;
1280 int pci_func_id = PCI_FUNC(pdev->devfn);
1281 uint8_t revision_id;
1283 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1284 pr_warning("%s: chip revisions between 0x%x-0x%x "
1285 "will not be enabled.\n",
1286 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
1290 if ((err = pci_enable_device(pdev)))
1293 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1295 goto err_out_disable_pdev;
1298 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1299 goto err_out_disable_pdev;
1301 if (NX_IS_REVISION_P3(pdev->revision))
1302 pci_enable_pcie_error_reporting(pdev);
1304 pci_set_master(pdev);
1306 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1308 dev_err(&pdev->dev, "failed to allocate net_device\n");
1310 goto err_out_free_res;
1313 SET_NETDEV_DEV(netdev, &pdev->dev);
1315 adapter = netdev_priv(netdev);
1316 adapter->netdev = netdev;
1317 adapter->pdev = pdev;
1318 adapter->ahw.pci_func = pci_func_id;
1320 revision_id = pdev->revision;
1321 adapter->ahw.revision_id = revision_id;
1323 rwlock_init(&adapter->ahw.crb_lock);
1324 spin_lock_init(&adapter->ahw.mem_lock);
1326 spin_lock_init(&adapter->tx_clean_lock);
1327 INIT_LIST_HEAD(&adapter->mac_list);
1329 err = netxen_setup_pci_map(adapter);
1331 goto err_out_free_netdev;
1333 /* This will be reset for mezz cards */
1334 adapter->portnum = pci_func_id;
1336 err = netxen_nic_get_board_info(adapter);
1338 dev_err(&pdev->dev, "Error getting board config info.\n");
1339 goto err_out_iounmap;
1342 #ifdef CONFIG_PCIEAER
1343 netxen_mask_aer_correctable(adapter);
1346 /* Mezz cards have PCI function 0,2,3 enabled */
1347 switch (adapter->ahw.board_type) {
1348 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1349 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1350 if (pci_func_id >= 2)
1351 adapter->portnum = pci_func_id - 2;
1357 err = netxen_start_firmware(adapter);
1359 goto err_out_decr_ref;
1362 * See if the firmware gave us a virtual-physical port mapping.
1364 adapter->physical_port = adapter->portnum;
1365 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1366 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1367 if (i != 0x55555555)
1368 adapter->physical_port = i;
1371 netxen_nic_clear_stats(adapter);
1373 netxen_setup_intr(adapter);
1375 err = netxen_setup_netdev(adapter, netdev);
1377 goto err_out_disable_msi;
1379 pci_set_drvdata(pdev, adapter);
1381 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1383 switch (adapter->ahw.port_type) {
1384 case NETXEN_NIC_GBE:
1385 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1386 adapter->netdev->name);
1388 case NETXEN_NIC_XGBE:
1389 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1390 adapter->netdev->name);
1394 netxen_create_diag_entries(adapter);
1398 err_out_disable_msi:
1399 netxen_teardown_intr(adapter);
1401 netxen_free_dummy_dma(adapter);
1404 nx_decr_dev_ref_cnt(adapter);
1407 netxen_cleanup_pci_map(adapter);
1409 err_out_free_netdev:
1410 free_netdev(netdev);
1413 pci_release_regions(pdev);
1415 err_out_disable_pdev:
1416 pci_set_drvdata(pdev, NULL);
1417 pci_disable_device(pdev);
1421 static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1423 struct netxen_adapter *adapter;
1424 struct net_device *netdev;
1426 adapter = pci_get_drvdata(pdev);
1427 if (adapter == NULL)
1430 netdev = adapter->netdev;
1432 netxen_cancel_fw_work(adapter);
1434 unregister_netdev(netdev);
1436 cancel_work_sync(&adapter->tx_timeout_task);
1438 netxen_nic_detach(adapter);
1440 nx_decr_dev_ref_cnt(adapter);
1442 if (adapter->portnum == 0)
1443 netxen_free_dummy_dma(adapter);
1445 clear_bit(__NX_RESETTING, &adapter->state);
1447 netxen_teardown_intr(adapter);
1449 netxen_remove_diag_entries(adapter);
1451 netxen_cleanup_pci_map(adapter);
1453 netxen_release_firmware(adapter);
1455 if (NX_IS_REVISION_P3(pdev->revision))
1456 pci_disable_pcie_error_reporting(pdev);
1458 pci_release_regions(pdev);
1459 pci_disable_device(pdev);
1460 pci_set_drvdata(pdev, NULL);
1462 free_netdev(netdev);
1465 static void netxen_nic_detach_func(struct netxen_adapter *adapter)
1467 struct net_device *netdev = adapter->netdev;
1469 netif_device_detach(netdev);
1471 netxen_cancel_fw_work(adapter);
1473 if (netif_running(netdev))
1474 netxen_nic_down(adapter, netdev);
1476 cancel_work_sync(&adapter->tx_timeout_task);
1478 netxen_nic_detach(adapter);
1480 if (adapter->portnum == 0)
1481 netxen_free_dummy_dma(adapter);
1483 nx_decr_dev_ref_cnt(adapter);
1485 clear_bit(__NX_RESETTING, &adapter->state);
1488 static int netxen_nic_attach_func(struct pci_dev *pdev)
1490 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1491 struct net_device *netdev = adapter->netdev;
1494 err = pci_enable_device(pdev);
1498 pci_set_power_state(pdev, PCI_D0);
1499 pci_set_master(pdev);
1500 pci_restore_state(pdev);
1502 adapter->ahw.crb_win = -1;
1503 adapter->ahw.ocm_win = -1;
1505 err = netxen_start_firmware(adapter);
1507 dev_err(&pdev->dev, "failed to start firmware\n");
1511 if (netif_running(netdev)) {
1512 err = netxen_nic_attach(adapter);
1516 err = netxen_nic_up(adapter, netdev);
1518 goto err_out_detach;
1520 netxen_config_indev_addr(netdev, NETDEV_UP);
1523 netif_device_attach(netdev);
1524 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1528 netxen_nic_detach(adapter);
1530 nx_decr_dev_ref_cnt(adapter);
1534 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1535 pci_channel_state_t state)
1537 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1539 if (state == pci_channel_io_perm_failure)
1540 return PCI_ERS_RESULT_DISCONNECT;
1542 if (nx_dev_request_aer(adapter))
1543 return PCI_ERS_RESULT_RECOVERED;
1545 netxen_nic_detach_func(adapter);
1547 pci_disable_device(pdev);
1549 return PCI_ERS_RESULT_NEED_RESET;
1552 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1556 err = netxen_nic_attach_func(pdev);
1558 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1561 static void netxen_io_resume(struct pci_dev *pdev)
1563 pci_cleanup_aer_uncorrect_error_status(pdev);
1566 static void netxen_nic_shutdown(struct pci_dev *pdev)
1568 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1570 netxen_nic_detach_func(adapter);
1572 if (pci_save_state(pdev))
1575 if (netxen_nic_wol_supported(adapter)) {
1576 pci_enable_wake(pdev, PCI_D3cold, 1);
1577 pci_enable_wake(pdev, PCI_D3hot, 1);
1580 pci_disable_device(pdev);
1585 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1587 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1590 netxen_nic_detach_func(adapter);
1592 retval = pci_save_state(pdev);
1596 if (netxen_nic_wol_supported(adapter)) {
1597 pci_enable_wake(pdev, PCI_D3cold, 1);
1598 pci_enable_wake(pdev, PCI_D3hot, 1);
1601 pci_disable_device(pdev);
1602 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1608 netxen_nic_resume(struct pci_dev *pdev)
1610 return netxen_nic_attach_func(pdev);
1614 static int netxen_nic_open(struct net_device *netdev)
1616 struct netxen_adapter *adapter = netdev_priv(netdev);
1619 if (adapter->driver_mismatch)
1622 err = netxen_nic_attach(adapter);
1626 err = __netxen_nic_up(adapter, netdev);
1630 netif_start_queue(netdev);
1635 netxen_nic_detach(adapter);
1640 * netxen_nic_close - Disables a network interface entry point
1642 static int netxen_nic_close(struct net_device *netdev)
1644 struct netxen_adapter *adapter = netdev_priv(netdev);
1646 __netxen_nic_down(adapter, netdev);
1651 netxen_tso_check(struct net_device *netdev,
1652 struct nx_host_tx_ring *tx_ring,
1653 struct cmd_desc_type0 *first_desc,
1654 struct sk_buff *skb)
1656 u8 opcode = TX_ETHER_PKT;
1657 __be16 protocol = skb->protocol;
1658 u16 flags = 0, vid = 0;
1660 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1661 struct cmd_desc_type0 *hwdesc;
1662 struct vlan_ethhdr *vh;
1664 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1666 vh = (struct vlan_ethhdr *)skb->data;
1667 protocol = vh->h_vlan_encapsulated_proto;
1668 flags = FLAGS_VLAN_TAGGED;
1670 } else if (vlan_tx_tag_present(skb)) {
1672 flags = FLAGS_VLAN_OOB;
1673 vid = vlan_tx_tag_get(skb);
1674 netxen_set_tx_vlan_tci(first_desc, vid);
1678 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1679 skb_shinfo(skb)->gso_size > 0) {
1681 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1683 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1684 first_desc->total_hdr_length = hdr_len;
1686 first_desc->total_hdr_length += VLAN_HLEN;
1687 first_desc->tcp_hdr_offset = VLAN_HLEN;
1688 first_desc->ip_hdr_offset = VLAN_HLEN;
1689 /* Only in case of TSO on vlan device */
1690 flags |= FLAGS_VLAN_TAGGED;
1693 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1694 TX_TCP_LSO6 : TX_TCP_LSO;
1697 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1700 if (protocol == cpu_to_be16(ETH_P_IP)) {
1701 l4proto = ip_hdr(skb)->protocol;
1703 if (l4proto == IPPROTO_TCP)
1704 opcode = TX_TCP_PKT;
1705 else if(l4proto == IPPROTO_UDP)
1706 opcode = TX_UDP_PKT;
1707 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1708 l4proto = ipv6_hdr(skb)->nexthdr;
1710 if (l4proto == IPPROTO_TCP)
1711 opcode = TX_TCPV6_PKT;
1712 else if(l4proto == IPPROTO_UDP)
1713 opcode = TX_UDPV6_PKT;
1717 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1718 first_desc->ip_hdr_offset += skb_network_offset(skb);
1719 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1724 /* For LSO, we need to copy the MAC/IP/TCP headers into
1725 * the descriptor ring
1727 producer = tx_ring->producer;
1732 /* Create a TSO vlan header template for firmware */
1734 hwdesc = &tx_ring->desc_head[producer];
1735 tx_ring->cmd_buf_arr[producer].skb = NULL;
1737 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1738 hdr_len + VLAN_HLEN);
1740 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1741 skb_copy_from_linear_data(skb, vh, 12);
1742 vh->h_vlan_proto = htons(ETH_P_8021Q);
1743 vh->h_vlan_TCI = htons(vid);
1744 skb_copy_from_linear_data_offset(skb, 12,
1745 (char *)vh + 16, copy_len - 16);
1747 copied = copy_len - VLAN_HLEN;
1750 producer = get_next_index(producer, tx_ring->num_desc);
1753 while (copied < hdr_len) {
1755 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1756 (hdr_len - copied));
1758 hwdesc = &tx_ring->desc_head[producer];
1759 tx_ring->cmd_buf_arr[producer].skb = NULL;
1761 skb_copy_from_linear_data_offset(skb, copied,
1762 (char *)hwdesc + offset, copy_len);
1767 producer = get_next_index(producer, tx_ring->num_desc);
1770 tx_ring->producer = producer;
1775 netxen_map_tx_skb(struct pci_dev *pdev,
1776 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1778 struct netxen_skb_frag *nf;
1779 struct skb_frag_struct *frag;
1783 nr_frags = skb_shinfo(skb)->nr_frags;
1784 nf = &pbuf->frag_array[0];
1786 map = pci_map_single(pdev, skb->data,
1787 skb_headlen(skb), PCI_DMA_TODEVICE);
1788 if (pci_dma_mapping_error(pdev, map))
1792 nf->length = skb_headlen(skb);
1794 for (i = 0; i < nr_frags; i++) {
1795 frag = &skb_shinfo(skb)->frags[i];
1796 nf = &pbuf->frag_array[i+1];
1798 map = pci_map_page(pdev, frag->page, frag->page_offset,
1799 frag->size, PCI_DMA_TODEVICE);
1800 if (pci_dma_mapping_error(pdev, map))
1804 nf->length = frag->size;
1811 nf = &pbuf->frag_array[i+1];
1812 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1815 nf = &pbuf->frag_array[0];
1816 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1823 netxen_clear_cmddesc(u64 *desc)
1830 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1832 struct netxen_adapter *adapter = netdev_priv(netdev);
1833 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1834 struct netxen_cmd_buffer *pbuf;
1835 struct netxen_skb_frag *buffrag;
1836 struct cmd_desc_type0 *hwdesc, *first_desc;
1837 struct pci_dev *pdev;
1841 int frag_count, no_of_desc;
1842 u32 num_txd = tx_ring->num_desc;
1844 frag_count = skb_shinfo(skb)->nr_frags + 1;
1846 /* 4 fragments per cmd des */
1847 no_of_desc = (frag_count + 3) >> 2;
1849 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
1850 netif_stop_queue(netdev);
1852 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
1853 netif_start_queue(netdev);
1855 return NETDEV_TX_BUSY;
1858 producer = tx_ring->producer;
1859 pbuf = &tx_ring->cmd_buf_arr[producer];
1861 pdev = adapter->pdev;
1863 if (netxen_map_tx_skb(pdev, skb, pbuf))
1867 pbuf->frag_count = frag_count;
1869 first_desc = hwdesc = &tx_ring->desc_head[producer];
1870 netxen_clear_cmddesc((u64 *)hwdesc);
1872 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1873 netxen_set_tx_port(first_desc, adapter->portnum);
1875 for (i = 0; i < frag_count; i++) {
1879 if ((k == 0) && (i > 0)) {
1880 /* move to next desc.*/
1881 producer = get_next_index(producer, num_txd);
1882 hwdesc = &tx_ring->desc_head[producer];
1883 netxen_clear_cmddesc((u64 *)hwdesc);
1884 tx_ring->cmd_buf_arr[producer].skb = NULL;
1887 buffrag = &pbuf->frag_array[i];
1889 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
1892 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1895 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
1898 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
1901 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
1906 tx_ring->producer = get_next_index(producer, num_txd);
1908 netxen_tso_check(netdev, tx_ring, first_desc, skb);
1910 netxen_nic_update_cmd_producer(adapter, tx_ring);
1912 adapter->stats.txbytes += skb->len;
1913 adapter->stats.xmitcalled++;
1915 return NETDEV_TX_OK;
1918 adapter->stats.txdropped++;
1919 dev_kfree_skb_any(skb);
1920 return NETDEV_TX_OK;
1923 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1925 struct net_device *netdev = adapter->netdev;
1926 uint32_t temp, temp_state, temp_val;
1929 temp = NXRD32(adapter, CRB_TEMP_STATE);
1931 temp_state = nx_get_temp_state(temp);
1932 temp_val = nx_get_temp_val(temp);
1934 if (temp_state == NX_TEMP_PANIC) {
1936 "%s: Device temperature %d degrees C exceeds"
1937 " maximum allowed. Hardware has been shut down.\n",
1938 netdev->name, temp_val);
1940 } else if (temp_state == NX_TEMP_WARN) {
1941 if (adapter->temp == NX_TEMP_NORMAL) {
1943 "%s: Device temperature %d degrees C "
1944 "exceeds operating range."
1945 " Immediate action needed.\n",
1946 netdev->name, temp_val);
1949 if (adapter->temp == NX_TEMP_WARN) {
1951 "%s: Device temperature is now %d degrees C"
1952 " in normal range.\n", netdev->name,
1956 adapter->temp = temp_state;
1960 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
1962 struct net_device *netdev = adapter->netdev;
1964 if (adapter->ahw.linkup && !linkup) {
1965 printk(KERN_INFO "%s: %s NIC Link is down\n",
1966 netxen_nic_driver_name, netdev->name);
1967 adapter->ahw.linkup = 0;
1968 if (netif_running(netdev)) {
1969 netif_carrier_off(netdev);
1970 netif_stop_queue(netdev);
1972 adapter->link_changed = !adapter->has_link_events;
1973 } else if (!adapter->ahw.linkup && linkup) {
1974 printk(KERN_INFO "%s: %s NIC Link is up\n",
1975 netxen_nic_driver_name, netdev->name);
1976 adapter->ahw.linkup = 1;
1977 if (netif_running(netdev)) {
1978 netif_carrier_on(netdev);
1979 netif_wake_queue(netdev);
1981 adapter->link_changed = !adapter->has_link_events;
1985 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1987 u32 val, port, linkup;
1989 port = adapter->physical_port;
1991 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1992 val = NXRD32(adapter, CRB_XG_STATE_P3);
1993 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
1994 linkup = (val == XG_LINK_UP_P3);
1996 val = NXRD32(adapter, CRB_XG_STATE);
1997 val = (val >> port*8) & 0xff;
1998 linkup = (val == XG_LINK_UP);
2001 netxen_advert_link_change(adapter, linkup);
2004 static void netxen_tx_timeout(struct net_device *netdev)
2006 struct netxen_adapter *adapter = netdev_priv(netdev);
2008 if (test_bit(__NX_RESETTING, &adapter->state))
2011 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2012 schedule_work(&adapter->tx_timeout_task);
2015 static void netxen_tx_timeout_task(struct work_struct *work)
2017 struct netxen_adapter *adapter =
2018 container_of(work, struct netxen_adapter, tx_timeout_task);
2020 if (!netif_running(adapter->netdev))
2023 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
2026 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2030 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2031 /* try to scrub interrupt */
2032 netxen_napi_disable(adapter);
2034 netxen_napi_enable(adapter);
2036 netif_wake_queue(adapter->netdev);
2038 clear_bit(__NX_RESETTING, &adapter->state);
2040 clear_bit(__NX_RESETTING, &adapter->state);
2041 if (netxen_nic_reset_context(adapter)) {
2046 adapter->netdev->trans_start = jiffies;
2051 adapter->need_fw_reset = 1;
2052 clear_bit(__NX_RESETTING, &adapter->state);
2055 struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
2057 struct netxen_adapter *adapter = netdev_priv(netdev);
2058 struct net_device_stats *stats = &netdev->stats;
2060 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2061 stats->tx_packets = adapter->stats.xmitfinished;
2062 stats->rx_bytes = adapter->stats.rxbytes;
2063 stats->tx_bytes = adapter->stats.txbytes;
2064 stats->rx_dropped = adapter->stats.rxdropped;
2065 stats->tx_dropped = adapter->stats.txdropped;
2070 static irqreturn_t netxen_intr(int irq, void *data)
2072 struct nx_host_sds_ring *sds_ring = data;
2073 struct netxen_adapter *adapter = sds_ring->adapter;
2076 status = readl(adapter->isr_int_vec);
2078 if (!(status & adapter->int_vec_bit))
2081 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2082 /* check interrupt state machine, to be sure */
2083 status = readl(adapter->crb_int_state_reg);
2084 if (!ISR_LEGACY_INT_TRIGGERED(status))
2088 unsigned long our_int = 0;
2090 our_int = readl(adapter->crb_int_state_reg);
2092 /* not our interrupt */
2093 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2096 /* claim interrupt */
2097 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2099 /* clear interrupt */
2100 netxen_nic_disable_int(sds_ring);
2103 writel(0xffffffff, adapter->tgt_status_reg);
2104 /* read twice to ensure write is flushed */
2105 readl(adapter->isr_int_vec);
2106 readl(adapter->isr_int_vec);
2108 napi_schedule(&sds_ring->napi);
2113 static irqreturn_t netxen_msi_intr(int irq, void *data)
2115 struct nx_host_sds_ring *sds_ring = data;
2116 struct netxen_adapter *adapter = sds_ring->adapter;
2118 /* clear interrupt */
2119 writel(0xffffffff, adapter->tgt_status_reg);
2121 napi_schedule(&sds_ring->napi);
2125 static irqreturn_t netxen_msix_intr(int irq, void *data)
2127 struct nx_host_sds_ring *sds_ring = data;
2129 napi_schedule(&sds_ring->napi);
2133 static int netxen_nic_poll(struct napi_struct *napi, int budget)
2135 struct nx_host_sds_ring *sds_ring =
2136 container_of(napi, struct nx_host_sds_ring, napi);
2138 struct netxen_adapter *adapter = sds_ring->adapter;
2143 tx_complete = netxen_process_cmd_ring(adapter);
2145 work_done = netxen_process_rcv_ring(sds_ring, budget);
2147 if ((work_done < budget) && tx_complete) {
2148 napi_complete(&sds_ring->napi);
2149 if (test_bit(__NX_DEV_UP, &adapter->state))
2150 netxen_nic_enable_int(sds_ring);
2156 #ifdef CONFIG_NET_POLL_CONTROLLER
2157 static void netxen_nic_poll_controller(struct net_device *netdev)
2160 struct nx_host_sds_ring *sds_ring;
2161 struct netxen_adapter *adapter = netdev_priv(netdev);
2162 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2164 disable_irq(adapter->irq);
2165 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2166 sds_ring = &recv_ctx->sds_rings[ring];
2167 netxen_intr(adapter->irq, sds_ring);
2169 enable_irq(adapter->irq);
2174 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2177 if (netxen_api_lock(adapter))
2180 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2182 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2184 netxen_api_unlock(adapter);
2189 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2192 if (netxen_api_lock(adapter))
2195 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2196 WARN_ON(count == 0);
2198 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2201 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2203 netxen_api_unlock(adapter);
2208 nx_dev_request_aer(struct netxen_adapter *adapter)
2213 if (netxen_api_lock(adapter))
2216 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2218 if (state == NX_DEV_NEED_AER)
2220 else if (state == NX_DEV_READY) {
2221 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2225 netxen_api_unlock(adapter);
2230 nx_dev_request_reset(struct netxen_adapter *adapter)
2235 if (netxen_api_lock(adapter))
2238 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2240 if (state == NX_DEV_NEED_RESET)
2242 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
2243 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2247 netxen_api_unlock(adapter);
2253 netxen_can_start_firmware(struct netxen_adapter *adapter)
2258 if (netxen_api_lock(adapter))
2261 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2263 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2268 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2271 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2273 netxen_api_unlock(adapter);
2279 netxen_schedule_work(struct netxen_adapter *adapter,
2280 work_func_t func, int delay)
2282 INIT_DELAYED_WORK(&adapter->fw_work, func);
2283 schedule_delayed_work(&adapter->fw_work, delay);
2287 netxen_cancel_fw_work(struct netxen_adapter *adapter)
2289 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2292 cancel_delayed_work_sync(&adapter->fw_work);
2296 netxen_attach_work(struct work_struct *work)
2298 struct netxen_adapter *adapter = container_of(work,
2299 struct netxen_adapter, fw_work.work);
2300 struct net_device *netdev = adapter->netdev;
2303 if (netif_running(netdev)) {
2304 err = netxen_nic_attach(adapter);
2308 err = netxen_nic_up(adapter, netdev);
2310 netxen_nic_detach(adapter);
2314 netxen_config_indev_addr(netdev, NETDEV_UP);
2317 netif_device_attach(netdev);
2320 adapter->fw_fail_cnt = 0;
2321 clear_bit(__NX_RESETTING, &adapter->state);
2322 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2326 netxen_fwinit_work(struct work_struct *work)
2328 struct netxen_adapter *adapter = container_of(work,
2329 struct netxen_adapter, fw_work.work);
2332 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2334 switch (dev_state) {
2337 if (!netxen_start_firmware(adapter)) {
2338 netxen_schedule_work(adapter, netxen_attach_work, 0);
2343 case NX_DEV_NEED_RESET:
2344 case NX_DEV_INITALIZING:
2345 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2346 netxen_schedule_work(adapter,
2347 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2353 nx_incr_dev_ref_cnt(adapter);
2357 clear_bit(__NX_RESETTING, &adapter->state);
2361 netxen_detach_work(struct work_struct *work)
2363 struct netxen_adapter *adapter = container_of(work,
2364 struct netxen_adapter, fw_work.work);
2365 struct net_device *netdev = adapter->netdev;
2369 netif_device_detach(netdev);
2371 netxen_nic_down(adapter, netdev);
2374 netxen_nic_detach(adapter);
2377 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2379 if (status & NX_RCODE_FATAL_ERROR)
2382 if (adapter->temp == NX_TEMP_PANIC)
2385 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2387 if (ref_cnt == -EIO)
2390 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2392 adapter->fw_wait_cnt = 0;
2393 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2398 clear_bit(__NX_RESETTING, &adapter->state);
2402 netxen_check_health(struct netxen_adapter *adapter)
2404 u32 state, heartbit;
2405 struct net_device *netdev = adapter->netdev;
2407 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2408 if (state == NX_DEV_NEED_AER)
2411 if (netxen_nic_check_temp(adapter))
2414 if (adapter->need_fw_reset) {
2415 if (nx_dev_request_reset(adapter))
2420 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2421 * 1. Tx timeout 2. Fw hang
2422 * Send request to destroy context in case of tx timeout only
2423 * and doesn't required in case of Fw hang
2425 if (state == NX_DEV_NEED_RESET) {
2426 adapter->need_fw_reset = 1;
2427 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2431 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2434 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2435 if (heartbit != adapter->heartbit) {
2436 adapter->heartbit = heartbit;
2437 adapter->fw_fail_cnt = 0;
2438 if (adapter->need_fw_reset)
2443 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2446 if (nx_dev_request_reset(adapter))
2449 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2451 dev_info(&netdev->dev, "firmware hang detected\n");
2454 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2455 !test_and_set_bit(__NX_RESETTING, &adapter->state))
2456 netxen_schedule_work(adapter, netxen_detach_work, 0);
2461 netxen_fw_poll_work(struct work_struct *work)
2463 struct netxen_adapter *adapter = container_of(work,
2464 struct netxen_adapter, fw_work.work);
2466 if (test_bit(__NX_RESETTING, &adapter->state))
2469 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2470 if (!adapter->has_link_events) {
2472 netxen_nic_handle_phy_intr(adapter);
2474 if (adapter->link_changed)
2475 netxen_nic_set_link_parameters(adapter);
2479 if (netxen_check_health(adapter))
2483 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2487 netxen_store_bridged_mode(struct device *dev,
2488 struct device_attribute *attr, const char *buf, size_t len)
2490 struct net_device *net = to_net_dev(dev);
2491 struct netxen_adapter *adapter = netdev_priv(net);
2495 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2498 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2501 if (strict_strtoul(buf, 2, &new))
2504 if (!netxen_config_bridged_mode(adapter, !!new))
2512 netxen_show_bridged_mode(struct device *dev,
2513 struct device_attribute *attr, char *buf)
2515 struct net_device *net = to_net_dev(dev);
2516 struct netxen_adapter *adapter;
2517 int bridged_mode = 0;
2519 adapter = netdev_priv(net);
2521 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2522 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2524 return sprintf(buf, "%d\n", bridged_mode);
2527 static struct device_attribute dev_attr_bridged_mode = {
2528 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2529 .show = netxen_show_bridged_mode,
2530 .store = netxen_store_bridged_mode,
2534 netxen_store_diag_mode(struct device *dev,
2535 struct device_attribute *attr, const char *buf, size_t len)
2537 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2540 if (strict_strtoul(buf, 2, &new))
2543 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2544 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2550 netxen_show_diag_mode(struct device *dev,
2551 struct device_attribute *attr, char *buf)
2553 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2555 return sprintf(buf, "%d\n",
2556 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2559 static struct device_attribute dev_attr_diag_mode = {
2560 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2561 .show = netxen_show_diag_mode,
2562 .store = netxen_store_diag_mode,
2566 netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2567 loff_t offset, size_t size)
2569 size_t crb_size = 4;
2571 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2574 if (offset < NETXEN_PCI_CRBSPACE) {
2575 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2578 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2579 NETXEN_PCI_CAMQM_2M_END))
2585 if ((size != crb_size) || (offset & (crb_size-1)))
2592 netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2593 struct bin_attribute *attr,
2594 char *buf, loff_t offset, size_t size)
2596 struct device *dev = container_of(kobj, struct device, kobj);
2597 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2602 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2606 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2607 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2608 NETXEN_PCI_CAMQM_2M_END)) {
2609 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2610 memcpy(buf, &qmdata, size);
2612 data = NXRD32(adapter, offset);
2613 memcpy(buf, &data, size);
2620 netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2621 struct bin_attribute *attr,
2622 char *buf, loff_t offset, size_t size)
2624 struct device *dev = container_of(kobj, struct device, kobj);
2625 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2630 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2634 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2635 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2636 NETXEN_PCI_CAMQM_2M_END)) {
2637 memcpy(&qmdata, buf, size);
2638 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2640 memcpy(&data, buf, size);
2641 NXWR32(adapter, offset, data);
2648 netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2649 loff_t offset, size_t size)
2651 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2654 if ((size != 8) || (offset & 0x7))
2661 netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2662 struct bin_attribute *attr,
2663 char *buf, loff_t offset, size_t size)
2665 struct device *dev = container_of(kobj, struct device, kobj);
2666 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2670 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2674 if (adapter->pci_mem_read(adapter, offset, &data))
2677 memcpy(buf, &data, size);
2682 static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
2683 struct bin_attribute *attr, char *buf,
2684 loff_t offset, size_t size)
2686 struct device *dev = container_of(kobj, struct device, kobj);
2687 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2691 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2695 memcpy(&data, buf, size);
2697 if (adapter->pci_mem_write(adapter, offset, data))
2704 static struct bin_attribute bin_attr_crb = {
2705 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2707 .read = netxen_sysfs_read_crb,
2708 .write = netxen_sysfs_write_crb,
2711 static struct bin_attribute bin_attr_mem = {
2712 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2714 .read = netxen_sysfs_read_mem,
2715 .write = netxen_sysfs_write_mem,
2720 netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2722 struct net_device *netdev = adapter->netdev;
2723 struct device *dev = &netdev->dev;
2725 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2726 /* bridged_mode control */
2727 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2728 dev_warn(&netdev->dev,
2729 "failed to create bridged_mode sysfs entry\n");
2735 netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2737 struct net_device *netdev = adapter->netdev;
2738 struct device *dev = &netdev->dev;
2740 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2741 device_remove_file(dev, &dev_attr_bridged_mode);
2745 netxen_create_diag_entries(struct netxen_adapter *adapter)
2747 struct pci_dev *pdev = adapter->pdev;
2751 if (device_create_file(dev, &dev_attr_diag_mode))
2752 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2753 if (device_create_bin_file(dev, &bin_attr_crb))
2754 dev_info(dev, "failed to create crb sysfs entry\n");
2755 if (device_create_bin_file(dev, &bin_attr_mem))
2756 dev_info(dev, "failed to create mem sysfs entry\n");
2761 netxen_remove_diag_entries(struct netxen_adapter *adapter)
2763 struct pci_dev *pdev = adapter->pdev;
2764 struct device *dev = &pdev->dev;
2766 device_remove_file(dev, &dev_attr_diag_mode);
2767 device_remove_bin_file(dev, &bin_attr_crb);
2768 device_remove_bin_file(dev, &bin_attr_mem);
2773 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2776 netxen_destip_supported(struct netxen_adapter *adapter)
2778 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2781 if (adapter->ahw.cut_through)
2788 netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2790 struct in_device *indev;
2791 struct netxen_adapter *adapter = netdev_priv(dev);
2793 if (!netxen_destip_supported(adapter))
2796 indev = in_dev_get(dev);
2803 netxen_config_ipaddr(adapter,
2804 ifa->ifa_address, NX_IP_UP);
2807 netxen_config_ipaddr(adapter,
2808 ifa->ifa_address, NX_IP_DOWN);
2813 } endfor_ifa(indev);
2818 static int netxen_netdev_event(struct notifier_block *this,
2819 unsigned long event, void *ptr)
2821 struct netxen_adapter *adapter;
2822 struct net_device *dev = (struct net_device *)ptr;
2828 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2829 dev = vlan_dev_real_dev(dev);
2833 if (!is_netxen_netdev(dev))
2836 adapter = netdev_priv(dev);
2841 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2844 netxen_config_indev_addr(dev, event);
2850 netxen_inetaddr_event(struct notifier_block *this,
2851 unsigned long event, void *ptr)
2853 struct netxen_adapter *adapter;
2854 struct net_device *dev;
2856 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2858 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2861 if (dev == NULL || !netif_running(dev))
2864 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2865 dev = vlan_dev_real_dev(dev);
2869 if (!is_netxen_netdev(dev))
2872 adapter = netdev_priv(dev);
2874 if (!adapter || !netxen_destip_supported(adapter))
2877 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2882 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2885 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2895 static struct notifier_block netxen_netdev_cb = {
2896 .notifier_call = netxen_netdev_event,
2899 static struct notifier_block netxen_inetaddr_cb = {
2900 .notifier_call = netxen_inetaddr_event,
2904 netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2908 static struct pci_error_handlers netxen_err_handler = {
2909 .error_detected = netxen_io_error_detected,
2910 .slot_reset = netxen_io_slot_reset,
2911 .resume = netxen_io_resume,
2914 static struct pci_driver netxen_driver = {
2915 .name = netxen_nic_driver_name,
2916 .id_table = netxen_pci_tbl,
2917 .probe = netxen_nic_probe,
2918 .remove = __devexit_p(netxen_nic_remove),
2920 .suspend = netxen_nic_suspend,
2921 .resume = netxen_nic_resume,
2923 .shutdown = netxen_nic_shutdown,
2924 .err_handler = &netxen_err_handler
2927 static int __init netxen_init_module(void)
2929 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2932 register_netdevice_notifier(&netxen_netdev_cb);
2933 register_inetaddr_notifier(&netxen_inetaddr_cb);
2935 return pci_register_driver(&netxen_driver);
2938 module_init(netxen_init_module);
2940 static void __exit netxen_exit_module(void)
2942 pci_unregister_driver(&netxen_driver);
2945 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2946 unregister_netdevice_notifier(&netxen_netdev_cb);
2950 module_exit(netxen_exit_module);