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);
98 static struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev);
99 static int netxen_nic_set_mac(struct net_device *netdev, void *p);
101 /* PCI Device ID Table */
102 #define ENTRY(device) \
103 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
104 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
106 static DEFINE_PCI_DEVICE_TABLE(netxen_pci_tbl) = {
107 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
108 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
109 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
110 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
111 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
112 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
113 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
114 ENTRY(PCI_DEVICE_ID_NX3031),
118 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
120 static uint32_t crb_cmd_producer[4] = {
121 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
122 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
126 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
127 struct nx_host_tx_ring *tx_ring)
129 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
132 static uint32_t crb_cmd_consumer[4] = {
133 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
134 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
138 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
139 struct nx_host_tx_ring *tx_ring)
141 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
144 static uint32_t msi_tgt_status[8] = {
145 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
146 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
147 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
148 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
151 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
153 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
155 struct netxen_adapter *adapter = sds_ring->adapter;
157 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
160 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
162 struct netxen_adapter *adapter = sds_ring->adapter;
164 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
166 if (!NETXEN_IS_MSI_FAMILY(adapter))
167 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
171 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
173 int size = sizeof(struct nx_host_sds_ring) * count;
175 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
177 return recv_ctx->sds_rings == NULL;
181 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
183 if (recv_ctx->sds_rings != NULL)
184 kfree(recv_ctx->sds_rings);
186 recv_ctx->sds_rings = NULL;
190 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
193 struct nx_host_sds_ring *sds_ring;
194 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
196 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
199 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
200 sds_ring = &recv_ctx->sds_rings[ring];
201 netif_napi_add(netdev, &sds_ring->napi,
202 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
209 netxen_napi_del(struct netxen_adapter *adapter)
212 struct nx_host_sds_ring *sds_ring;
213 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
215 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
216 sds_ring = &recv_ctx->sds_rings[ring];
217 netif_napi_del(&sds_ring->napi);
220 netxen_free_sds_rings(&adapter->recv_ctx);
224 netxen_napi_enable(struct netxen_adapter *adapter)
227 struct nx_host_sds_ring *sds_ring;
228 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
230 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
231 sds_ring = &recv_ctx->sds_rings[ring];
232 napi_enable(&sds_ring->napi);
233 netxen_nic_enable_int(sds_ring);
238 netxen_napi_disable(struct netxen_adapter *adapter)
241 struct nx_host_sds_ring *sds_ring;
242 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
244 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
245 sds_ring = &recv_ctx->sds_rings[ring];
246 netxen_nic_disable_int(sds_ring);
247 napi_synchronize(&sds_ring->napi);
248 napi_disable(&sds_ring->napi);
252 static int nx_set_dma_mask(struct netxen_adapter *adapter)
254 struct pci_dev *pdev = adapter->pdev;
255 uint64_t mask, cmask;
257 adapter->pci_using_dac = 0;
259 mask = DMA_BIT_MASK(32);
260 cmask = DMA_BIT_MASK(32);
262 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
264 mask = DMA_BIT_MASK(35);
267 mask = DMA_BIT_MASK(39);
271 if (pci_set_dma_mask(pdev, mask) == 0 &&
272 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
273 adapter->pci_using_dac = 1;
280 /* Update addressable range if firmware supports it */
282 nx_update_dma_mask(struct netxen_adapter *adapter)
284 int change, shift, err;
285 uint64_t mask, old_mask, old_cmask;
286 struct pci_dev *pdev = adapter->pdev;
290 shift = NXRD32(adapter, CRB_DMA_SHIFT);
294 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
296 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
300 old_mask = pdev->dma_mask;
301 old_cmask = pdev->dev.coherent_dma_mask;
303 mask = DMA_BIT_MASK(32+shift);
305 err = pci_set_dma_mask(pdev, mask);
309 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
311 err = pci_set_consistent_dma_mask(pdev, mask);
315 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
321 pci_set_dma_mask(pdev, old_mask);
322 pci_set_consistent_dma_mask(pdev, old_cmask);
327 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
331 if (first_boot == 0x55555555) {
332 /* This is the first boot after power up */
333 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
335 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
338 /* PCI bus master workaround */
339 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
340 if (!(first_boot & 0x4)) {
342 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
343 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
346 /* This is the first boot after power up */
347 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
348 if (first_boot != 0x80000f) {
349 /* clear the register for future unloads/loads */
350 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
354 /* Start P2 boot loader */
355 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
356 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
360 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
362 if (++timeout > 5000)
365 } while (val == NETXEN_BDINFO_MAGIC);
370 static void netxen_set_port_mode(struct netxen_adapter *adapter)
374 val = adapter->ahw.board_type;
375 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
376 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
377 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
378 data = NETXEN_PORT_MODE_802_3_AP;
379 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
380 } else if (port_mode == NETXEN_PORT_MODE_XG) {
381 data = NETXEN_PORT_MODE_XG;
382 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
383 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
384 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
385 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
386 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
387 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
388 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
390 data = NETXEN_PORT_MODE_AUTO_NEG;
391 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
394 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
395 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
396 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
397 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
398 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
400 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
404 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
409 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
411 pci_read_config_dword(pdev, pos, &control);
413 control |= PCI_MSIX_FLAGS_ENABLE;
416 pci_write_config_dword(pdev, pos, control);
420 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
424 for (i = 0; i < count; i++)
425 adapter->msix_entries[i].entry = i;
429 netxen_read_mac_addr(struct netxen_adapter *adapter)
434 struct net_device *netdev = adapter->netdev;
435 struct pci_dev *pdev = adapter->pdev;
437 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
438 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
441 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
445 p = (unsigned char *)&mac_addr;
446 for (i = 0; i < 6; i++)
447 netdev->dev_addr[i] = *(p + 5 - i);
449 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
450 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
452 /* set station address */
454 if (!is_valid_ether_addr(netdev->perm_addr))
455 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
460 static int netxen_nic_set_mac(struct net_device *netdev, void *p)
462 struct netxen_adapter *adapter = netdev_priv(netdev);
463 struct sockaddr *addr = p;
465 if (!is_valid_ether_addr(addr->sa_data))
468 if (netif_running(netdev)) {
469 netif_device_detach(netdev);
470 netxen_napi_disable(adapter);
473 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
474 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
475 adapter->macaddr_set(adapter, addr->sa_data);
477 if (netif_running(netdev)) {
478 netif_device_attach(netdev);
479 netxen_napi_enable(adapter);
484 static void netxen_set_multicast_list(struct net_device *dev)
486 struct netxen_adapter *adapter = netdev_priv(dev);
488 adapter->set_multi(dev);
491 static const struct net_device_ops netxen_netdev_ops = {
492 .ndo_open = netxen_nic_open,
493 .ndo_stop = netxen_nic_close,
494 .ndo_start_xmit = netxen_nic_xmit_frame,
495 .ndo_get_stats = netxen_nic_get_stats,
496 .ndo_validate_addr = eth_validate_addr,
497 .ndo_set_multicast_list = netxen_set_multicast_list,
498 .ndo_set_mac_address = netxen_nic_set_mac,
499 .ndo_change_mtu = netxen_nic_change_mtu,
500 .ndo_tx_timeout = netxen_tx_timeout,
501 #ifdef CONFIG_NET_POLL_CONTROLLER
502 .ndo_poll_controller = netxen_nic_poll_controller,
507 netxen_setup_intr(struct netxen_adapter *adapter)
509 struct netxen_legacy_intr_set *legacy_intrp;
510 struct pci_dev *pdev = adapter->pdev;
513 if (adapter->rss_supported) {
514 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
515 MSIX_ENTRIES_PER_ADAPTER : 2;
519 adapter->max_sds_rings = 1;
521 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
523 if (adapter->ahw.revision_id >= NX_P3_B0)
524 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
526 legacy_intrp = &legacy_intr[0];
528 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
529 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
530 legacy_intrp->tgt_status_reg);
531 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
532 legacy_intrp->tgt_mask_reg);
533 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
534 legacy_intrp->pci_int_reg);
535 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
537 if (adapter->ahw.revision_id >= NX_P3_B1)
538 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
541 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
544 netxen_set_msix_bit(pdev, 0);
546 if (adapter->msix_supported) {
548 netxen_init_msix_entries(adapter, num_msix);
549 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
551 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
552 netxen_set_msix_bit(pdev, 1);
554 if (adapter->rss_supported)
555 adapter->max_sds_rings = num_msix;
557 dev_info(&pdev->dev, "using msi-x interrupts\n");
562 pci_disable_msix(pdev);
564 /* fall through for msi */
567 if (use_msi && !pci_enable_msi(pdev)) {
568 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
569 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
570 msi_tgt_status[adapter->ahw.pci_func]);
571 dev_info(&pdev->dev, "using msi interrupts\n");
572 adapter->msix_entries[0].vector = pdev->irq;
576 dev_info(&pdev->dev, "using legacy interrupts\n");
577 adapter->msix_entries[0].vector = pdev->irq;
581 netxen_teardown_intr(struct netxen_adapter *adapter)
583 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
584 pci_disable_msix(adapter->pdev);
585 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
586 pci_disable_msi(adapter->pdev);
590 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
592 if (adapter->ahw.db_base != NULL)
593 iounmap(adapter->ahw.db_base);
594 if (adapter->ahw.pci_base0 != NULL)
595 iounmap(adapter->ahw.pci_base0);
596 if (adapter->ahw.pci_base1 != NULL)
597 iounmap(adapter->ahw.pci_base1);
598 if (adapter->ahw.pci_base2 != NULL)
599 iounmap(adapter->ahw.pci_base2);
603 netxen_setup_pci_map(struct netxen_adapter *adapter)
605 void __iomem *db_ptr = NULL;
607 resource_size_t mem_base, db_base;
608 unsigned long mem_len, db_len = 0;
610 struct pci_dev *pdev = adapter->pdev;
611 int pci_func = adapter->ahw.pci_func;
612 struct netxen_hardware_context *ahw = &adapter->ahw;
617 * Set the CRB window to invalid. If any register in window 0 is
618 * accessed it should set the window to 0 and then reset it to 1.
620 adapter->ahw.crb_win = -1;
621 adapter->ahw.ocm_win = -1;
623 /* remap phys address */
624 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
625 mem_len = pci_resource_len(pdev, 0);
627 /* 128 Meg of memory */
628 if (mem_len == NETXEN_PCI_128MB_SIZE) {
630 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
631 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
632 SECOND_PAGE_GROUP_SIZE);
633 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
634 THIRD_PAGE_GROUP_SIZE);
635 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
636 ahw->pci_base2 == NULL) {
637 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
642 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
644 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
646 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
647 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
648 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
649 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
650 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
655 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
657 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
658 if (ahw->pci_base0 == NULL) {
659 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
662 ahw->pci_len0 = mem_len;
667 netxen_setup_hwops(adapter);
669 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
671 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
672 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
673 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
675 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
676 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
677 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
680 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
683 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
684 db_len = pci_resource_len(pdev, 4);
687 printk(KERN_ERR "%s: doorbell is disabled\n",
688 netxen_nic_driver_name);
693 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
695 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
696 netxen_nic_driver_name);
702 adapter->ahw.db_base = db_ptr;
703 adapter->ahw.db_len = db_len;
707 netxen_cleanup_pci_map(adapter);
712 netxen_check_options(struct netxen_adapter *adapter)
714 u32 fw_major, fw_minor, fw_build;
715 char brd_name[NETXEN_MAX_SHORT_NAME];
719 struct pci_dev *pdev = adapter->pdev;
721 adapter->driver_mismatch = 0;
723 ptr32 = (int *)&serial_num;
724 offset = NX_FW_SERIAL_NUM_OFFSET;
725 for (i = 0; i < 8; i++) {
726 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
727 dev_err(&pdev->dev, "error reading board info\n");
728 adapter->driver_mismatch = 1;
731 ptr32[i] = cpu_to_le32(val);
732 offset += sizeof(u32);
735 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
736 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
737 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
739 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
741 if (adapter->portnum == 0) {
742 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
744 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
745 module_name(THIS_MODULE),
746 brd_name, serial_num, adapter->ahw.revision_id);
749 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
750 adapter->driver_mismatch = 1;
751 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
752 fw_major, fw_minor, fw_build);
756 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
757 i = NXRD32(adapter, NETXEN_SRE_MISC);
758 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
761 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
762 fw_major, fw_minor, fw_build,
763 adapter->ahw.cut_through ? "cut-through" : "legacy");
765 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
766 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
768 adapter->flags &= ~NETXEN_NIC_LRO_ENABLED;
770 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
771 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
772 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
773 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
774 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
775 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
778 adapter->msix_supported = 0;
779 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
780 adapter->msix_supported = !!use_msi_x;
781 adapter->rss_supported = !!use_msi_x;
784 netxen_rom_fast_read(adapter,
785 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
786 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
788 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
789 switch (adapter->ahw.board_type) {
790 case NETXEN_BRDTYPE_P2_SB31_10G:
791 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
792 adapter->msix_supported = !!use_msi_x;
793 adapter->rss_supported = !!use_msi_x;
801 adapter->num_txd = MAX_CMD_DESCRIPTORS;
803 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
804 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
805 adapter->max_rds_rings = 3;
807 adapter->num_lro_rxd = 0;
808 adapter->max_rds_rings = 2;
813 netxen_start_firmware(struct netxen_adapter *adapter)
815 int val, err, first_boot;
816 struct pci_dev *pdev = adapter->pdev;
818 /* required for NX2031 dummy dma */
819 err = nx_set_dma_mask(adapter);
823 if (!netxen_can_start_firmware(adapter))
826 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
828 err = netxen_check_hw_init(adapter, first_boot);
830 dev_err(&pdev->dev, "error in init HW init sequence\n");
834 netxen_request_firmware(adapter);
836 err = netxen_need_fw_reset(adapter);
842 if (first_boot != 0x55555555) {
843 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
844 netxen_pinit_from_rom(adapter);
848 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
849 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
850 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
852 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
853 netxen_set_port_mode(adapter);
855 err = netxen_load_firmware(adapter);
859 netxen_release_firmware(adapter);
861 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
863 /* Initialize multicast addr pool owners */
865 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
867 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
871 err = netxen_init_dummy_dma(adapter);
876 * Tell the hardware our version number.
878 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
879 | ((_NETXEN_NIC_LINUX_MINOR << 8))
880 | (_NETXEN_NIC_LINUX_SUBVERSION);
881 NXWR32(adapter, CRB_DRIVER_VERSION, val);
884 /* Handshake with the card before we register the devices. */
885 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
887 netxen_free_dummy_dma(adapter);
891 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
893 nx_update_dma_mask(adapter);
895 netxen_check_options(adapter);
897 adapter->need_fw_reset = 0;
899 /* fall through and release firmware */
902 netxen_release_firmware(adapter);
907 netxen_nic_request_irq(struct netxen_adapter *adapter)
909 irq_handler_t handler;
910 struct nx_host_sds_ring *sds_ring;
913 unsigned long flags = IRQF_SAMPLE_RANDOM;
914 struct net_device *netdev = adapter->netdev;
915 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
917 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
918 handler = netxen_msix_intr;
919 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
920 handler = netxen_msi_intr;
922 flags |= IRQF_SHARED;
923 handler = netxen_intr;
925 adapter->irq = netdev->irq;
927 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
928 sds_ring = &recv_ctx->sds_rings[ring];
929 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
930 err = request_irq(sds_ring->irq, handler,
931 flags, sds_ring->name, sds_ring);
940 netxen_nic_free_irq(struct netxen_adapter *adapter)
943 struct nx_host_sds_ring *sds_ring;
945 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
947 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
948 sds_ring = &recv_ctx->sds_rings[ring];
949 free_irq(sds_ring->irq, sds_ring);
954 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
956 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
957 adapter->coal.normal.data.rx_time_us =
958 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
959 adapter->coal.normal.data.rx_packets =
960 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
961 adapter->coal.normal.data.tx_time_us =
962 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
963 adapter->coal.normal.data.tx_packets =
964 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
969 __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
973 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
976 err = adapter->init_port(adapter, adapter->physical_port);
978 printk(KERN_ERR "%s: Failed to initialize port %d\n",
979 netxen_nic_driver_name, adapter->portnum);
982 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
983 adapter->macaddr_set(adapter, adapter->mac_addr);
985 adapter->set_multi(netdev);
986 adapter->set_mtu(adapter, netdev->mtu);
988 adapter->ahw.linkup = 0;
990 if (adapter->max_sds_rings > 1)
991 netxen_config_rss(adapter, 1);
993 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
994 netxen_config_intr_coalesce(adapter);
996 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
997 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
999 netxen_napi_enable(adapter);
1001 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1002 netxen_linkevent_request(adapter, 1);
1004 netxen_nic_set_link_parameters(adapter);
1006 set_bit(__NX_DEV_UP, &adapter->state);
1010 /* Usage: During resume and firmware recovery module.*/
1013 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1018 if (netif_running(netdev))
1019 err = __netxen_nic_up(adapter, netdev);
1025 /* with rtnl_lock */
1027 __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1029 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1032 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1036 spin_lock(&adapter->tx_clean_lock);
1037 netif_carrier_off(netdev);
1038 netif_tx_disable(netdev);
1040 if (adapter->stop_port)
1041 adapter->stop_port(adapter);
1043 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1044 netxen_p3_free_mac_list(adapter);
1046 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1048 netxen_napi_disable(adapter);
1050 netxen_release_tx_buffers(adapter);
1051 spin_unlock(&adapter->tx_clean_lock);
1054 /* Usage: During suspend and firmware recovery module */
1057 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1060 if (netif_running(netdev))
1061 __netxen_nic_down(adapter, netdev);
1067 netxen_nic_attach(struct netxen_adapter *adapter)
1069 struct net_device *netdev = adapter->netdev;
1070 struct pci_dev *pdev = adapter->pdev;
1072 struct nx_host_rds_ring *rds_ring;
1073 struct nx_host_tx_ring *tx_ring;
1075 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1078 err = netxen_init_firmware(adapter);
1082 err = netxen_napi_add(adapter, netdev);
1086 err = netxen_alloc_sw_resources(adapter);
1088 printk(KERN_ERR "%s: Error in setting sw resources\n",
1093 err = netxen_alloc_hw_resources(adapter);
1095 printk(KERN_ERR "%s: Error in setting hw resources\n",
1097 goto err_out_free_sw;
1100 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1101 tx_ring = adapter->tx_ring;
1102 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1103 crb_cmd_producer[adapter->portnum]);
1104 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1105 crb_cmd_consumer[adapter->portnum]);
1107 tx_ring->producer = 0;
1108 tx_ring->sw_consumer = 0;
1110 netxen_nic_update_cmd_producer(adapter, tx_ring);
1111 netxen_nic_update_cmd_consumer(adapter, tx_ring);
1114 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1115 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1116 netxen_post_rx_buffers(adapter, ring, rds_ring);
1119 err = netxen_nic_request_irq(adapter);
1121 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1123 goto err_out_free_rxbuf;
1126 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1127 netxen_nic_init_coalesce_defaults(adapter);
1129 netxen_create_sysfs_entries(adapter);
1131 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1135 netxen_release_rx_buffers(adapter);
1136 netxen_free_hw_resources(adapter);
1138 netxen_free_sw_resources(adapter);
1143 netxen_nic_detach(struct netxen_adapter *adapter)
1145 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1148 netxen_remove_sysfs_entries(adapter);
1150 netxen_free_hw_resources(adapter);
1151 netxen_release_rx_buffers(adapter);
1152 netxen_nic_free_irq(adapter);
1153 netxen_napi_del(adapter);
1154 netxen_free_sw_resources(adapter);
1160 netxen_nic_reset_context(struct netxen_adapter *adapter)
1163 struct net_device *netdev = adapter->netdev;
1165 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1168 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1170 netif_device_detach(netdev);
1172 if (netif_running(netdev))
1173 __netxen_nic_down(adapter, netdev);
1175 netxen_nic_detach(adapter);
1177 if (netif_running(netdev)) {
1178 err = netxen_nic_attach(adapter);
1180 err = __netxen_nic_up(adapter, netdev);
1186 netif_device_attach(netdev);
1190 clear_bit(__NX_RESETTING, &adapter->state);
1195 netxen_setup_netdev(struct netxen_adapter *adapter,
1196 struct net_device *netdev)
1199 struct pci_dev *pdev = adapter->pdev;
1201 adapter->rx_csum = 1;
1202 adapter->mc_enabled = 0;
1203 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1204 adapter->max_mc_count = 38;
1206 adapter->max_mc_count = 16;
1208 netdev->netdev_ops = &netxen_netdev_ops;
1209 netdev->watchdog_timeo = 5*HZ;
1211 netxen_nic_change_mtu(netdev, netdev->mtu);
1213 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1215 netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1216 netdev->features |= (NETIF_F_GRO);
1217 netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO);
1219 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
1220 netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1221 netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6);
1224 if (adapter->pci_using_dac) {
1225 netdev->features |= NETIF_F_HIGHDMA;
1226 netdev->vlan_features |= NETIF_F_HIGHDMA;
1229 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1230 netdev->features |= (NETIF_F_HW_VLAN_TX);
1232 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1233 netdev->features |= NETIF_F_LRO;
1235 netdev->irq = adapter->msix_entries[0].vector;
1237 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1239 if (netxen_read_mac_addr(adapter))
1240 dev_warn(&pdev->dev, "failed to read mac addr\n");
1242 netif_carrier_off(netdev);
1243 netif_stop_queue(netdev);
1245 err = register_netdev(netdev);
1247 dev_err(&pdev->dev, "failed to register net device\n");
1254 #ifdef CONFIG_PCIEAER
1255 static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1257 struct pci_dev *pdev = adapter->pdev;
1258 struct pci_dev *root = pdev->bus->self;
1261 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1262 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1265 if (root->pcie_type != PCI_EXP_TYPE_ROOT_PORT)
1268 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1272 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1276 static int __devinit
1277 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1279 struct net_device *netdev = NULL;
1280 struct netxen_adapter *adapter = NULL;
1282 int pci_func_id = PCI_FUNC(pdev->devfn);
1283 uint8_t revision_id;
1285 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1286 pr_warning("%s: chip revisions between 0x%x-0x%x "
1287 "will not be enabled.\n",
1288 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
1292 if ((err = pci_enable_device(pdev)))
1295 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1297 goto err_out_disable_pdev;
1300 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1301 goto err_out_disable_pdev;
1303 if (NX_IS_REVISION_P3(pdev->revision))
1304 pci_enable_pcie_error_reporting(pdev);
1306 pci_set_master(pdev);
1308 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1310 dev_err(&pdev->dev, "failed to allocate net_device\n");
1312 goto err_out_free_res;
1315 SET_NETDEV_DEV(netdev, &pdev->dev);
1317 adapter = netdev_priv(netdev);
1318 adapter->netdev = netdev;
1319 adapter->pdev = pdev;
1320 adapter->ahw.pci_func = pci_func_id;
1322 revision_id = pdev->revision;
1323 adapter->ahw.revision_id = revision_id;
1325 rwlock_init(&adapter->ahw.crb_lock);
1326 spin_lock_init(&adapter->ahw.mem_lock);
1328 spin_lock_init(&adapter->tx_clean_lock);
1329 INIT_LIST_HEAD(&adapter->mac_list);
1331 err = netxen_setup_pci_map(adapter);
1333 goto err_out_free_netdev;
1335 /* This will be reset for mezz cards */
1336 adapter->portnum = pci_func_id;
1338 err = netxen_nic_get_board_info(adapter);
1340 dev_err(&pdev->dev, "Error getting board config info.\n");
1341 goto err_out_iounmap;
1344 #ifdef CONFIG_PCIEAER
1345 netxen_mask_aer_correctable(adapter);
1348 /* Mezz cards have PCI function 0,2,3 enabled */
1349 switch (adapter->ahw.board_type) {
1350 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1351 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1352 if (pci_func_id >= 2)
1353 adapter->portnum = pci_func_id - 2;
1359 if (reset_devices) {
1360 if (adapter->portnum == 0) {
1361 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1362 adapter->need_fw_reset = 1;
1366 err = netxen_start_firmware(adapter);
1368 goto err_out_decr_ref;
1371 * See if the firmware gave us a virtual-physical port mapping.
1373 adapter->physical_port = adapter->portnum;
1374 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1375 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1376 if (i != 0x55555555)
1377 adapter->physical_port = i;
1380 netxen_nic_clear_stats(adapter);
1382 netxen_setup_intr(adapter);
1384 err = netxen_setup_netdev(adapter, netdev);
1386 goto err_out_disable_msi;
1388 pci_set_drvdata(pdev, adapter);
1390 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1392 switch (adapter->ahw.port_type) {
1393 case NETXEN_NIC_GBE:
1394 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1395 adapter->netdev->name);
1397 case NETXEN_NIC_XGBE:
1398 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1399 adapter->netdev->name);
1403 netxen_create_diag_entries(adapter);
1407 err_out_disable_msi:
1408 netxen_teardown_intr(adapter);
1410 netxen_free_dummy_dma(adapter);
1413 nx_decr_dev_ref_cnt(adapter);
1416 netxen_cleanup_pci_map(adapter);
1418 err_out_free_netdev:
1419 free_netdev(netdev);
1422 pci_release_regions(pdev);
1424 err_out_disable_pdev:
1425 pci_set_drvdata(pdev, NULL);
1426 pci_disable_device(pdev);
1430 static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1432 struct netxen_adapter *adapter;
1433 struct net_device *netdev;
1435 adapter = pci_get_drvdata(pdev);
1436 if (adapter == NULL)
1439 netdev = adapter->netdev;
1441 netxen_cancel_fw_work(adapter);
1443 unregister_netdev(netdev);
1445 cancel_work_sync(&adapter->tx_timeout_task);
1447 netxen_nic_detach(adapter);
1449 nx_decr_dev_ref_cnt(adapter);
1451 if (adapter->portnum == 0)
1452 netxen_free_dummy_dma(adapter);
1454 clear_bit(__NX_RESETTING, &adapter->state);
1456 netxen_teardown_intr(adapter);
1458 netxen_remove_diag_entries(adapter);
1460 netxen_cleanup_pci_map(adapter);
1462 netxen_release_firmware(adapter);
1464 if (NX_IS_REVISION_P3(pdev->revision))
1465 pci_disable_pcie_error_reporting(pdev);
1467 pci_release_regions(pdev);
1468 pci_disable_device(pdev);
1469 pci_set_drvdata(pdev, NULL);
1471 free_netdev(netdev);
1474 static void netxen_nic_detach_func(struct netxen_adapter *adapter)
1476 struct net_device *netdev = adapter->netdev;
1478 netif_device_detach(netdev);
1480 netxen_cancel_fw_work(adapter);
1482 if (netif_running(netdev))
1483 netxen_nic_down(adapter, netdev);
1485 cancel_work_sync(&adapter->tx_timeout_task);
1487 netxen_nic_detach(adapter);
1489 if (adapter->portnum == 0)
1490 netxen_free_dummy_dma(adapter);
1492 nx_decr_dev_ref_cnt(adapter);
1494 clear_bit(__NX_RESETTING, &adapter->state);
1497 static int netxen_nic_attach_func(struct pci_dev *pdev)
1499 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1500 struct net_device *netdev = adapter->netdev;
1503 err = pci_enable_device(pdev);
1507 pci_set_power_state(pdev, PCI_D0);
1508 pci_set_master(pdev);
1509 pci_restore_state(pdev);
1511 adapter->ahw.crb_win = -1;
1512 adapter->ahw.ocm_win = -1;
1514 err = netxen_start_firmware(adapter);
1516 dev_err(&pdev->dev, "failed to start firmware\n");
1520 if (netif_running(netdev)) {
1521 err = netxen_nic_attach(adapter);
1525 err = netxen_nic_up(adapter, netdev);
1527 goto err_out_detach;
1529 netxen_config_indev_addr(netdev, NETDEV_UP);
1532 netif_device_attach(netdev);
1533 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1537 netxen_nic_detach(adapter);
1539 nx_decr_dev_ref_cnt(adapter);
1543 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1544 pci_channel_state_t state)
1546 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1548 if (state == pci_channel_io_perm_failure)
1549 return PCI_ERS_RESULT_DISCONNECT;
1551 if (nx_dev_request_aer(adapter))
1552 return PCI_ERS_RESULT_RECOVERED;
1554 netxen_nic_detach_func(adapter);
1556 pci_disable_device(pdev);
1558 return PCI_ERS_RESULT_NEED_RESET;
1561 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1565 err = netxen_nic_attach_func(pdev);
1567 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1570 static void netxen_io_resume(struct pci_dev *pdev)
1572 pci_cleanup_aer_uncorrect_error_status(pdev);
1575 static void netxen_nic_shutdown(struct pci_dev *pdev)
1577 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1579 netxen_nic_detach_func(adapter);
1581 if (pci_save_state(pdev))
1584 if (netxen_nic_wol_supported(adapter)) {
1585 pci_enable_wake(pdev, PCI_D3cold, 1);
1586 pci_enable_wake(pdev, PCI_D3hot, 1);
1589 pci_disable_device(pdev);
1594 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1596 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1599 netxen_nic_detach_func(adapter);
1601 retval = pci_save_state(pdev);
1605 if (netxen_nic_wol_supported(adapter)) {
1606 pci_enable_wake(pdev, PCI_D3cold, 1);
1607 pci_enable_wake(pdev, PCI_D3hot, 1);
1610 pci_disable_device(pdev);
1611 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1617 netxen_nic_resume(struct pci_dev *pdev)
1619 return netxen_nic_attach_func(pdev);
1623 static int netxen_nic_open(struct net_device *netdev)
1625 struct netxen_adapter *adapter = netdev_priv(netdev);
1628 if (adapter->driver_mismatch)
1631 err = netxen_nic_attach(adapter);
1635 err = __netxen_nic_up(adapter, netdev);
1639 netif_start_queue(netdev);
1644 netxen_nic_detach(adapter);
1649 * netxen_nic_close - Disables a network interface entry point
1651 static int netxen_nic_close(struct net_device *netdev)
1653 struct netxen_adapter *adapter = netdev_priv(netdev);
1655 __netxen_nic_down(adapter, netdev);
1660 netxen_tso_check(struct net_device *netdev,
1661 struct nx_host_tx_ring *tx_ring,
1662 struct cmd_desc_type0 *first_desc,
1663 struct sk_buff *skb)
1665 u8 opcode = TX_ETHER_PKT;
1666 __be16 protocol = skb->protocol;
1667 u16 flags = 0, vid = 0;
1669 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1670 struct cmd_desc_type0 *hwdesc;
1671 struct vlan_ethhdr *vh;
1673 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1675 vh = (struct vlan_ethhdr *)skb->data;
1676 protocol = vh->h_vlan_encapsulated_proto;
1677 flags = FLAGS_VLAN_TAGGED;
1679 } else if (vlan_tx_tag_present(skb)) {
1681 flags = FLAGS_VLAN_OOB;
1682 vid = vlan_tx_tag_get(skb);
1683 netxen_set_tx_vlan_tci(first_desc, vid);
1687 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1688 skb_shinfo(skb)->gso_size > 0) {
1690 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1692 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1693 first_desc->total_hdr_length = hdr_len;
1695 first_desc->total_hdr_length += VLAN_HLEN;
1696 first_desc->tcp_hdr_offset = VLAN_HLEN;
1697 first_desc->ip_hdr_offset = VLAN_HLEN;
1698 /* Only in case of TSO on vlan device */
1699 flags |= FLAGS_VLAN_TAGGED;
1702 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1703 TX_TCP_LSO6 : TX_TCP_LSO;
1706 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1709 if (protocol == cpu_to_be16(ETH_P_IP)) {
1710 l4proto = ip_hdr(skb)->protocol;
1712 if (l4proto == IPPROTO_TCP)
1713 opcode = TX_TCP_PKT;
1714 else if(l4proto == IPPROTO_UDP)
1715 opcode = TX_UDP_PKT;
1716 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1717 l4proto = ipv6_hdr(skb)->nexthdr;
1719 if (l4proto == IPPROTO_TCP)
1720 opcode = TX_TCPV6_PKT;
1721 else if(l4proto == IPPROTO_UDP)
1722 opcode = TX_UDPV6_PKT;
1726 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1727 first_desc->ip_hdr_offset += skb_network_offset(skb);
1728 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1733 /* For LSO, we need to copy the MAC/IP/TCP headers into
1734 * the descriptor ring
1736 producer = tx_ring->producer;
1741 /* Create a TSO vlan header template for firmware */
1743 hwdesc = &tx_ring->desc_head[producer];
1744 tx_ring->cmd_buf_arr[producer].skb = NULL;
1746 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1747 hdr_len + VLAN_HLEN);
1749 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1750 skb_copy_from_linear_data(skb, vh, 12);
1751 vh->h_vlan_proto = htons(ETH_P_8021Q);
1752 vh->h_vlan_TCI = htons(vid);
1753 skb_copy_from_linear_data_offset(skb, 12,
1754 (char *)vh + 16, copy_len - 16);
1756 copied = copy_len - VLAN_HLEN;
1759 producer = get_next_index(producer, tx_ring->num_desc);
1762 while (copied < hdr_len) {
1764 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1765 (hdr_len - copied));
1767 hwdesc = &tx_ring->desc_head[producer];
1768 tx_ring->cmd_buf_arr[producer].skb = NULL;
1770 skb_copy_from_linear_data_offset(skb, copied,
1771 (char *)hwdesc + offset, copy_len);
1776 producer = get_next_index(producer, tx_ring->num_desc);
1779 tx_ring->producer = producer;
1784 netxen_map_tx_skb(struct pci_dev *pdev,
1785 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1787 struct netxen_skb_frag *nf;
1788 struct skb_frag_struct *frag;
1792 nr_frags = skb_shinfo(skb)->nr_frags;
1793 nf = &pbuf->frag_array[0];
1795 map = pci_map_single(pdev, skb->data,
1796 skb_headlen(skb), PCI_DMA_TODEVICE);
1797 if (pci_dma_mapping_error(pdev, map))
1801 nf->length = skb_headlen(skb);
1803 for (i = 0; i < nr_frags; i++) {
1804 frag = &skb_shinfo(skb)->frags[i];
1805 nf = &pbuf->frag_array[i+1];
1807 map = pci_map_page(pdev, frag->page, frag->page_offset,
1808 frag->size, PCI_DMA_TODEVICE);
1809 if (pci_dma_mapping_error(pdev, map))
1813 nf->length = frag->size;
1820 nf = &pbuf->frag_array[i+1];
1821 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1824 nf = &pbuf->frag_array[0];
1825 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1832 netxen_clear_cmddesc(u64 *desc)
1839 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1841 struct netxen_adapter *adapter = netdev_priv(netdev);
1842 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1843 struct netxen_cmd_buffer *pbuf;
1844 struct netxen_skb_frag *buffrag;
1845 struct cmd_desc_type0 *hwdesc, *first_desc;
1846 struct pci_dev *pdev;
1850 int frag_count, no_of_desc;
1851 u32 num_txd = tx_ring->num_desc;
1853 frag_count = skb_shinfo(skb)->nr_frags + 1;
1855 /* 4 fragments per cmd des */
1856 no_of_desc = (frag_count + 3) >> 2;
1858 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
1859 netif_stop_queue(netdev);
1861 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
1862 netif_start_queue(netdev);
1864 return NETDEV_TX_BUSY;
1867 producer = tx_ring->producer;
1868 pbuf = &tx_ring->cmd_buf_arr[producer];
1870 pdev = adapter->pdev;
1872 if (netxen_map_tx_skb(pdev, skb, pbuf))
1876 pbuf->frag_count = frag_count;
1878 first_desc = hwdesc = &tx_ring->desc_head[producer];
1879 netxen_clear_cmddesc((u64 *)hwdesc);
1881 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1882 netxen_set_tx_port(first_desc, adapter->portnum);
1884 for (i = 0; i < frag_count; i++) {
1888 if ((k == 0) && (i > 0)) {
1889 /* move to next desc.*/
1890 producer = get_next_index(producer, num_txd);
1891 hwdesc = &tx_ring->desc_head[producer];
1892 netxen_clear_cmddesc((u64 *)hwdesc);
1893 tx_ring->cmd_buf_arr[producer].skb = NULL;
1896 buffrag = &pbuf->frag_array[i];
1898 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
1901 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1904 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
1907 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
1910 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
1915 tx_ring->producer = get_next_index(producer, num_txd);
1917 netxen_tso_check(netdev, tx_ring, first_desc, skb);
1919 netxen_nic_update_cmd_producer(adapter, tx_ring);
1921 adapter->stats.txbytes += skb->len;
1922 adapter->stats.xmitcalled++;
1924 return NETDEV_TX_OK;
1927 adapter->stats.txdropped++;
1928 dev_kfree_skb_any(skb);
1929 return NETDEV_TX_OK;
1932 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1934 struct net_device *netdev = adapter->netdev;
1935 uint32_t temp, temp_state, temp_val;
1938 temp = NXRD32(adapter, CRB_TEMP_STATE);
1940 temp_state = nx_get_temp_state(temp);
1941 temp_val = nx_get_temp_val(temp);
1943 if (temp_state == NX_TEMP_PANIC) {
1945 "%s: Device temperature %d degrees C exceeds"
1946 " maximum allowed. Hardware has been shut down.\n",
1947 netdev->name, temp_val);
1949 } else if (temp_state == NX_TEMP_WARN) {
1950 if (adapter->temp == NX_TEMP_NORMAL) {
1952 "%s: Device temperature %d degrees C "
1953 "exceeds operating range."
1954 " Immediate action needed.\n",
1955 netdev->name, temp_val);
1958 if (adapter->temp == NX_TEMP_WARN) {
1960 "%s: Device temperature is now %d degrees C"
1961 " in normal range.\n", netdev->name,
1965 adapter->temp = temp_state;
1969 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
1971 struct net_device *netdev = adapter->netdev;
1973 if (adapter->ahw.linkup && !linkup) {
1974 printk(KERN_INFO "%s: %s NIC Link is down\n",
1975 netxen_nic_driver_name, netdev->name);
1976 adapter->ahw.linkup = 0;
1977 if (netif_running(netdev)) {
1978 netif_carrier_off(netdev);
1979 netif_stop_queue(netdev);
1981 adapter->link_changed = !adapter->has_link_events;
1982 } else if (!adapter->ahw.linkup && linkup) {
1983 printk(KERN_INFO "%s: %s NIC Link is up\n",
1984 netxen_nic_driver_name, netdev->name);
1985 adapter->ahw.linkup = 1;
1986 if (netif_running(netdev)) {
1987 netif_carrier_on(netdev);
1988 netif_wake_queue(netdev);
1990 adapter->link_changed = !adapter->has_link_events;
1994 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
1996 u32 val, port, linkup;
1998 port = adapter->physical_port;
2000 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2001 val = NXRD32(adapter, CRB_XG_STATE_P3);
2002 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2003 linkup = (val == XG_LINK_UP_P3);
2005 val = NXRD32(adapter, CRB_XG_STATE);
2006 val = (val >> port*8) & 0xff;
2007 linkup = (val == XG_LINK_UP);
2010 netxen_advert_link_change(adapter, linkup);
2013 static void netxen_tx_timeout(struct net_device *netdev)
2015 struct netxen_adapter *adapter = netdev_priv(netdev);
2017 if (test_bit(__NX_RESETTING, &adapter->state))
2020 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2021 schedule_work(&adapter->tx_timeout_task);
2024 static void netxen_tx_timeout_task(struct work_struct *work)
2026 struct netxen_adapter *adapter =
2027 container_of(work, struct netxen_adapter, tx_timeout_task);
2029 if (!netif_running(adapter->netdev))
2032 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
2035 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2039 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2040 /* try to scrub interrupt */
2041 netxen_napi_disable(adapter);
2043 netxen_napi_enable(adapter);
2045 netif_wake_queue(adapter->netdev);
2047 clear_bit(__NX_RESETTING, &adapter->state);
2049 clear_bit(__NX_RESETTING, &adapter->state);
2050 if (netxen_nic_reset_context(adapter)) {
2055 adapter->netdev->trans_start = jiffies;
2060 adapter->need_fw_reset = 1;
2061 clear_bit(__NX_RESETTING, &adapter->state);
2064 static struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
2066 struct netxen_adapter *adapter = netdev_priv(netdev);
2067 struct net_device_stats *stats = &netdev->stats;
2069 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2070 stats->tx_packets = adapter->stats.xmitfinished;
2071 stats->rx_bytes = adapter->stats.rxbytes;
2072 stats->tx_bytes = adapter->stats.txbytes;
2073 stats->rx_dropped = adapter->stats.rxdropped;
2074 stats->tx_dropped = adapter->stats.txdropped;
2079 static irqreturn_t netxen_intr(int irq, void *data)
2081 struct nx_host_sds_ring *sds_ring = data;
2082 struct netxen_adapter *adapter = sds_ring->adapter;
2085 status = readl(adapter->isr_int_vec);
2087 if (!(status & adapter->int_vec_bit))
2090 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2091 /* check interrupt state machine, to be sure */
2092 status = readl(adapter->crb_int_state_reg);
2093 if (!ISR_LEGACY_INT_TRIGGERED(status))
2097 unsigned long our_int = 0;
2099 our_int = readl(adapter->crb_int_state_reg);
2101 /* not our interrupt */
2102 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2105 /* claim interrupt */
2106 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2108 /* clear interrupt */
2109 netxen_nic_disable_int(sds_ring);
2112 writel(0xffffffff, adapter->tgt_status_reg);
2113 /* read twice to ensure write is flushed */
2114 readl(adapter->isr_int_vec);
2115 readl(adapter->isr_int_vec);
2117 napi_schedule(&sds_ring->napi);
2122 static irqreturn_t netxen_msi_intr(int irq, void *data)
2124 struct nx_host_sds_ring *sds_ring = data;
2125 struct netxen_adapter *adapter = sds_ring->adapter;
2127 /* clear interrupt */
2128 writel(0xffffffff, adapter->tgt_status_reg);
2130 napi_schedule(&sds_ring->napi);
2134 static irqreturn_t netxen_msix_intr(int irq, void *data)
2136 struct nx_host_sds_ring *sds_ring = data;
2138 napi_schedule(&sds_ring->napi);
2142 static int netxen_nic_poll(struct napi_struct *napi, int budget)
2144 struct nx_host_sds_ring *sds_ring =
2145 container_of(napi, struct nx_host_sds_ring, napi);
2147 struct netxen_adapter *adapter = sds_ring->adapter;
2152 tx_complete = netxen_process_cmd_ring(adapter);
2154 work_done = netxen_process_rcv_ring(sds_ring, budget);
2156 if ((work_done < budget) && tx_complete) {
2157 napi_complete(&sds_ring->napi);
2158 if (test_bit(__NX_DEV_UP, &adapter->state))
2159 netxen_nic_enable_int(sds_ring);
2165 #ifdef CONFIG_NET_POLL_CONTROLLER
2166 static void netxen_nic_poll_controller(struct net_device *netdev)
2169 struct nx_host_sds_ring *sds_ring;
2170 struct netxen_adapter *adapter = netdev_priv(netdev);
2171 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2173 disable_irq(adapter->irq);
2174 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2175 sds_ring = &recv_ctx->sds_rings[ring];
2176 netxen_intr(adapter->irq, sds_ring);
2178 enable_irq(adapter->irq);
2183 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2186 if (netxen_api_lock(adapter))
2189 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2191 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2193 netxen_api_unlock(adapter);
2198 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2201 if (netxen_api_lock(adapter))
2204 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2205 WARN_ON(count == 0);
2207 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2210 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2212 netxen_api_unlock(adapter);
2217 nx_dev_request_aer(struct netxen_adapter *adapter)
2222 if (netxen_api_lock(adapter))
2225 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2227 if (state == NX_DEV_NEED_AER)
2229 else if (state == NX_DEV_READY) {
2230 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2234 netxen_api_unlock(adapter);
2239 nx_dev_request_reset(struct netxen_adapter *adapter)
2244 if (netxen_api_lock(adapter))
2247 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2249 if (state == NX_DEV_NEED_RESET)
2251 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
2252 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2256 netxen_api_unlock(adapter);
2262 netxen_can_start_firmware(struct netxen_adapter *adapter)
2267 if (netxen_api_lock(adapter))
2270 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2272 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2277 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2280 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2282 netxen_api_unlock(adapter);
2288 netxen_schedule_work(struct netxen_adapter *adapter,
2289 work_func_t func, int delay)
2291 INIT_DELAYED_WORK(&adapter->fw_work, func);
2292 schedule_delayed_work(&adapter->fw_work, delay);
2296 netxen_cancel_fw_work(struct netxen_adapter *adapter)
2298 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2301 cancel_delayed_work_sync(&adapter->fw_work);
2305 netxen_attach_work(struct work_struct *work)
2307 struct netxen_adapter *adapter = container_of(work,
2308 struct netxen_adapter, fw_work.work);
2309 struct net_device *netdev = adapter->netdev;
2312 if (netif_running(netdev)) {
2313 err = netxen_nic_attach(adapter);
2317 err = netxen_nic_up(adapter, netdev);
2319 netxen_nic_detach(adapter);
2323 netxen_config_indev_addr(netdev, NETDEV_UP);
2326 netif_device_attach(netdev);
2329 adapter->fw_fail_cnt = 0;
2330 clear_bit(__NX_RESETTING, &adapter->state);
2331 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2335 netxen_fwinit_work(struct work_struct *work)
2337 struct netxen_adapter *adapter = container_of(work,
2338 struct netxen_adapter, fw_work.work);
2341 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2343 switch (dev_state) {
2346 if (!netxen_start_firmware(adapter)) {
2347 netxen_schedule_work(adapter, netxen_attach_work, 0);
2352 case NX_DEV_NEED_RESET:
2353 case NX_DEV_INITALIZING:
2354 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2355 netxen_schedule_work(adapter,
2356 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2362 nx_incr_dev_ref_cnt(adapter);
2366 clear_bit(__NX_RESETTING, &adapter->state);
2370 netxen_detach_work(struct work_struct *work)
2372 struct netxen_adapter *adapter = container_of(work,
2373 struct netxen_adapter, fw_work.work);
2374 struct net_device *netdev = adapter->netdev;
2378 netif_device_detach(netdev);
2380 netxen_nic_down(adapter, netdev);
2383 netxen_nic_detach(adapter);
2386 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2388 if (status & NX_RCODE_FATAL_ERROR)
2391 if (adapter->temp == NX_TEMP_PANIC)
2394 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2396 if (ref_cnt == -EIO)
2399 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2401 adapter->fw_wait_cnt = 0;
2402 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2407 clear_bit(__NX_RESETTING, &adapter->state);
2411 netxen_check_health(struct netxen_adapter *adapter)
2413 u32 state, heartbit;
2414 struct net_device *netdev = adapter->netdev;
2416 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2417 if (state == NX_DEV_NEED_AER)
2420 if (netxen_nic_check_temp(adapter))
2423 if (adapter->need_fw_reset) {
2424 if (nx_dev_request_reset(adapter))
2429 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2430 * 1. Tx timeout 2. Fw hang
2431 * Send request to destroy context in case of tx timeout only
2432 * and doesn't required in case of Fw hang
2434 if (state == NX_DEV_NEED_RESET) {
2435 adapter->need_fw_reset = 1;
2436 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2440 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2443 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2444 if (heartbit != adapter->heartbit) {
2445 adapter->heartbit = heartbit;
2446 adapter->fw_fail_cnt = 0;
2447 if (adapter->need_fw_reset)
2452 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2455 if (nx_dev_request_reset(adapter))
2458 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2460 dev_info(&netdev->dev, "firmware hang detected\n");
2463 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2464 !test_and_set_bit(__NX_RESETTING, &adapter->state))
2465 netxen_schedule_work(adapter, netxen_detach_work, 0);
2470 netxen_fw_poll_work(struct work_struct *work)
2472 struct netxen_adapter *adapter = container_of(work,
2473 struct netxen_adapter, fw_work.work);
2475 if (test_bit(__NX_RESETTING, &adapter->state))
2478 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2479 if (!adapter->has_link_events) {
2481 netxen_nic_handle_phy_intr(adapter);
2483 if (adapter->link_changed)
2484 netxen_nic_set_link_parameters(adapter);
2488 if (netxen_check_health(adapter))
2492 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2496 netxen_store_bridged_mode(struct device *dev,
2497 struct device_attribute *attr, const char *buf, size_t len)
2499 struct net_device *net = to_net_dev(dev);
2500 struct netxen_adapter *adapter = netdev_priv(net);
2504 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2507 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2510 if (strict_strtoul(buf, 2, &new))
2513 if (!netxen_config_bridged_mode(adapter, !!new))
2521 netxen_show_bridged_mode(struct device *dev,
2522 struct device_attribute *attr, char *buf)
2524 struct net_device *net = to_net_dev(dev);
2525 struct netxen_adapter *adapter;
2526 int bridged_mode = 0;
2528 adapter = netdev_priv(net);
2530 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2531 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2533 return sprintf(buf, "%d\n", bridged_mode);
2536 static struct device_attribute dev_attr_bridged_mode = {
2537 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2538 .show = netxen_show_bridged_mode,
2539 .store = netxen_store_bridged_mode,
2543 netxen_store_diag_mode(struct device *dev,
2544 struct device_attribute *attr, const char *buf, size_t len)
2546 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2549 if (strict_strtoul(buf, 2, &new))
2552 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2553 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2559 netxen_show_diag_mode(struct device *dev,
2560 struct device_attribute *attr, char *buf)
2562 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2564 return sprintf(buf, "%d\n",
2565 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2568 static struct device_attribute dev_attr_diag_mode = {
2569 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2570 .show = netxen_show_diag_mode,
2571 .store = netxen_store_diag_mode,
2575 netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2576 loff_t offset, size_t size)
2578 size_t crb_size = 4;
2580 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2583 if (offset < NETXEN_PCI_CRBSPACE) {
2584 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2587 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2588 NETXEN_PCI_CAMQM_2M_END))
2594 if ((size != crb_size) || (offset & (crb_size-1)))
2601 netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2602 struct bin_attribute *attr,
2603 char *buf, loff_t offset, size_t size)
2605 struct device *dev = container_of(kobj, struct device, kobj);
2606 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2611 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2615 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2616 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2617 NETXEN_PCI_CAMQM_2M_END)) {
2618 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2619 memcpy(buf, &qmdata, size);
2621 data = NXRD32(adapter, offset);
2622 memcpy(buf, &data, size);
2629 netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2630 struct bin_attribute *attr,
2631 char *buf, loff_t offset, size_t size)
2633 struct device *dev = container_of(kobj, struct device, kobj);
2634 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2639 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2643 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2644 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2645 NETXEN_PCI_CAMQM_2M_END)) {
2646 memcpy(&qmdata, buf, size);
2647 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2649 memcpy(&data, buf, size);
2650 NXWR32(adapter, offset, data);
2657 netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2658 loff_t offset, size_t size)
2660 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2663 if ((size != 8) || (offset & 0x7))
2670 netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2671 struct bin_attribute *attr,
2672 char *buf, loff_t offset, size_t size)
2674 struct device *dev = container_of(kobj, struct device, kobj);
2675 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2679 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2683 if (adapter->pci_mem_read(adapter, offset, &data))
2686 memcpy(buf, &data, size);
2691 static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
2692 struct bin_attribute *attr, char *buf,
2693 loff_t offset, size_t size)
2695 struct device *dev = container_of(kobj, struct device, kobj);
2696 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2700 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2704 memcpy(&data, buf, size);
2706 if (adapter->pci_mem_write(adapter, offset, data))
2713 static struct bin_attribute bin_attr_crb = {
2714 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2716 .read = netxen_sysfs_read_crb,
2717 .write = netxen_sysfs_write_crb,
2720 static struct bin_attribute bin_attr_mem = {
2721 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2723 .read = netxen_sysfs_read_mem,
2724 .write = netxen_sysfs_write_mem,
2729 netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2731 struct net_device *netdev = adapter->netdev;
2732 struct device *dev = &netdev->dev;
2734 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2735 /* bridged_mode control */
2736 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2737 dev_warn(&netdev->dev,
2738 "failed to create bridged_mode sysfs entry\n");
2744 netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2746 struct net_device *netdev = adapter->netdev;
2747 struct device *dev = &netdev->dev;
2749 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2750 device_remove_file(dev, &dev_attr_bridged_mode);
2754 netxen_create_diag_entries(struct netxen_adapter *adapter)
2756 struct pci_dev *pdev = adapter->pdev;
2760 if (device_create_file(dev, &dev_attr_diag_mode))
2761 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2762 if (device_create_bin_file(dev, &bin_attr_crb))
2763 dev_info(dev, "failed to create crb sysfs entry\n");
2764 if (device_create_bin_file(dev, &bin_attr_mem))
2765 dev_info(dev, "failed to create mem sysfs entry\n");
2770 netxen_remove_diag_entries(struct netxen_adapter *adapter)
2772 struct pci_dev *pdev = adapter->pdev;
2773 struct device *dev = &pdev->dev;
2775 device_remove_file(dev, &dev_attr_diag_mode);
2776 device_remove_bin_file(dev, &bin_attr_crb);
2777 device_remove_bin_file(dev, &bin_attr_mem);
2782 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2785 netxen_destip_supported(struct netxen_adapter *adapter)
2787 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2790 if (adapter->ahw.cut_through)
2797 netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2799 struct in_device *indev;
2800 struct netxen_adapter *adapter = netdev_priv(dev);
2802 if (!netxen_destip_supported(adapter))
2805 indev = in_dev_get(dev);
2812 netxen_config_ipaddr(adapter,
2813 ifa->ifa_address, NX_IP_UP);
2816 netxen_config_ipaddr(adapter,
2817 ifa->ifa_address, NX_IP_DOWN);
2822 } endfor_ifa(indev);
2827 static int netxen_netdev_event(struct notifier_block *this,
2828 unsigned long event, void *ptr)
2830 struct netxen_adapter *adapter;
2831 struct net_device *dev = (struct net_device *)ptr;
2837 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2838 dev = vlan_dev_real_dev(dev);
2842 if (!is_netxen_netdev(dev))
2845 adapter = netdev_priv(dev);
2850 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2853 netxen_config_indev_addr(dev, event);
2859 netxen_inetaddr_event(struct notifier_block *this,
2860 unsigned long event, void *ptr)
2862 struct netxen_adapter *adapter;
2863 struct net_device *dev;
2865 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2867 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2870 if (dev == NULL || !netif_running(dev))
2873 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2874 dev = vlan_dev_real_dev(dev);
2878 if (!is_netxen_netdev(dev))
2881 adapter = netdev_priv(dev);
2883 if (!adapter || !netxen_destip_supported(adapter))
2886 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2891 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2894 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2904 static struct notifier_block netxen_netdev_cb = {
2905 .notifier_call = netxen_netdev_event,
2908 static struct notifier_block netxen_inetaddr_cb = {
2909 .notifier_call = netxen_inetaddr_event,
2913 netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2917 static struct pci_error_handlers netxen_err_handler = {
2918 .error_detected = netxen_io_error_detected,
2919 .slot_reset = netxen_io_slot_reset,
2920 .resume = netxen_io_resume,
2923 static struct pci_driver netxen_driver = {
2924 .name = netxen_nic_driver_name,
2925 .id_table = netxen_pci_tbl,
2926 .probe = netxen_nic_probe,
2927 .remove = __devexit_p(netxen_nic_remove),
2929 .suspend = netxen_nic_suspend,
2930 .resume = netxen_nic_resume,
2932 .shutdown = netxen_nic_shutdown,
2933 .err_handler = &netxen_err_handler
2936 static int __init netxen_init_module(void)
2938 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2941 register_netdevice_notifier(&netxen_netdev_cb);
2942 register_inetaddr_notifier(&netxen_inetaddr_cb);
2944 return pci_register_driver(&netxen_driver);
2947 module_init(netxen_init_module);
2949 static void __exit netxen_exit_module(void)
2951 pci_unregister_driver(&netxen_driver);
2954 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2955 unregister_netdevice_notifier(&netxen_netdev_cb);
2959 module_exit(netxen_exit_module);