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 Intelligent Ethernet Driver");
42 MODULE_LICENSE("GPL");
43 MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID);
44 MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME);
46 char netxen_nic_driver_name[] = "netxen_nic";
47 static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v"
48 NETXEN_NIC_LINUX_VERSIONID;
50 static int port_mode = NETXEN_PORT_MODE_AUTO_NEG;
52 /* Default to restricted 1G auto-neg mode */
53 static int wol_port_mode = 5;
55 static int use_msi = 1;
57 static int use_msi_x = 1;
59 static int auto_fw_reset = AUTO_FW_RESET_ENABLED;
60 module_param(auto_fw_reset, int, 0644);
61 MODULE_PARM_DESC(auto_fw_reset,"Auto firmware reset (0=disabled, 1=enabled");
63 static int __devinit netxen_nic_probe(struct pci_dev *pdev,
64 const struct pci_device_id *ent);
65 static void __devexit netxen_nic_remove(struct pci_dev *pdev);
66 static int netxen_nic_open(struct net_device *netdev);
67 static int netxen_nic_close(struct net_device *netdev);
68 static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *,
70 static void netxen_tx_timeout(struct net_device *netdev);
71 static void netxen_tx_timeout_task(struct work_struct *work);
72 static void netxen_fw_poll_work(struct work_struct *work);
73 static void netxen_schedule_work(struct netxen_adapter *adapter,
74 work_func_t func, int delay);
75 static void netxen_cancel_fw_work(struct netxen_adapter *adapter);
76 static int netxen_nic_poll(struct napi_struct *napi, int budget);
77 #ifdef CONFIG_NET_POLL_CONTROLLER
78 static void netxen_nic_poll_controller(struct net_device *netdev);
81 static void netxen_create_sysfs_entries(struct netxen_adapter *adapter);
82 static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
83 static void netxen_create_diag_entries(struct netxen_adapter *adapter);
84 static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
86 static int nx_dev_request_aer(struct netxen_adapter *adapter);
87 static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
88 static int netxen_can_start_firmware(struct netxen_adapter *adapter);
90 static irqreturn_t netxen_intr(int irq, void *data);
91 static irqreturn_t netxen_msi_intr(int irq, void *data);
92 static irqreturn_t netxen_msix_intr(int irq, void *data);
94 static void netxen_config_indev_addr(struct net_device *dev, unsigned long);
95 static struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev);
96 static int netxen_nic_set_mac(struct net_device *netdev, void *p);
98 /* PCI Device ID Table */
99 #define ENTRY(device) \
100 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
101 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
103 static DEFINE_PCI_DEVICE_TABLE(netxen_pci_tbl) = {
104 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
105 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
106 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
107 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
108 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
109 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
110 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
111 ENTRY(PCI_DEVICE_ID_NX3031),
115 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
117 static uint32_t crb_cmd_producer[4] = {
118 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
119 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
123 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
124 struct nx_host_tx_ring *tx_ring)
126 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
129 static uint32_t crb_cmd_consumer[4] = {
130 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
131 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
135 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
136 struct nx_host_tx_ring *tx_ring)
138 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
141 static uint32_t msi_tgt_status[8] = {
142 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
143 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
144 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
145 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
148 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
150 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
152 struct netxen_adapter *adapter = sds_ring->adapter;
154 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
157 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
159 struct netxen_adapter *adapter = sds_ring->adapter;
161 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
163 if (!NETXEN_IS_MSI_FAMILY(adapter))
164 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
168 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
170 int size = sizeof(struct nx_host_sds_ring) * count;
172 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
174 return recv_ctx->sds_rings == NULL;
178 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
180 if (recv_ctx->sds_rings != NULL)
181 kfree(recv_ctx->sds_rings);
183 recv_ctx->sds_rings = NULL;
187 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
190 struct nx_host_sds_ring *sds_ring;
191 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
193 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
196 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
197 sds_ring = &recv_ctx->sds_rings[ring];
198 netif_napi_add(netdev, &sds_ring->napi,
199 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
206 netxen_napi_del(struct netxen_adapter *adapter)
209 struct nx_host_sds_ring *sds_ring;
210 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
212 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
213 sds_ring = &recv_ctx->sds_rings[ring];
214 netif_napi_del(&sds_ring->napi);
217 netxen_free_sds_rings(&adapter->recv_ctx);
221 netxen_napi_enable(struct netxen_adapter *adapter)
224 struct nx_host_sds_ring *sds_ring;
225 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
227 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
228 sds_ring = &recv_ctx->sds_rings[ring];
229 napi_enable(&sds_ring->napi);
230 netxen_nic_enable_int(sds_ring);
235 netxen_napi_disable(struct netxen_adapter *adapter)
238 struct nx_host_sds_ring *sds_ring;
239 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
241 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
242 sds_ring = &recv_ctx->sds_rings[ring];
243 netxen_nic_disable_int(sds_ring);
244 napi_synchronize(&sds_ring->napi);
245 napi_disable(&sds_ring->napi);
249 static int nx_set_dma_mask(struct netxen_adapter *adapter)
251 struct pci_dev *pdev = adapter->pdev;
252 uint64_t mask, cmask;
254 adapter->pci_using_dac = 0;
256 mask = DMA_BIT_MASK(32);
257 cmask = DMA_BIT_MASK(32);
259 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
261 mask = DMA_BIT_MASK(35);
264 mask = DMA_BIT_MASK(39);
268 if (pci_set_dma_mask(pdev, mask) == 0 &&
269 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
270 adapter->pci_using_dac = 1;
277 /* Update addressable range if firmware supports it */
279 nx_update_dma_mask(struct netxen_adapter *adapter)
281 int change, shift, err;
282 uint64_t mask, old_mask, old_cmask;
283 struct pci_dev *pdev = adapter->pdev;
287 shift = NXRD32(adapter, CRB_DMA_SHIFT);
291 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
293 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
297 old_mask = pdev->dma_mask;
298 old_cmask = pdev->dev.coherent_dma_mask;
300 mask = DMA_BIT_MASK(32+shift);
302 err = pci_set_dma_mask(pdev, mask);
306 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
308 err = pci_set_consistent_dma_mask(pdev, mask);
312 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
318 pci_set_dma_mask(pdev, old_mask);
319 pci_set_consistent_dma_mask(pdev, old_cmask);
324 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
328 if (first_boot == 0x55555555) {
329 /* This is the first boot after power up */
330 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
332 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
335 /* PCI bus master workaround */
336 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
337 if (!(first_boot & 0x4)) {
339 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
340 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
343 /* This is the first boot after power up */
344 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
345 if (first_boot != 0x80000f) {
346 /* clear the register for future unloads/loads */
347 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
351 /* Start P2 boot loader */
352 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
353 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
357 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
359 if (++timeout > 5000)
362 } while (val == NETXEN_BDINFO_MAGIC);
367 static void netxen_set_port_mode(struct netxen_adapter *adapter)
371 val = adapter->ahw.board_type;
372 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
373 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
374 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
375 data = NETXEN_PORT_MODE_802_3_AP;
376 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
377 } else if (port_mode == NETXEN_PORT_MODE_XG) {
378 data = NETXEN_PORT_MODE_XG;
379 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
380 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
381 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
382 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
383 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
384 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
385 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
387 data = NETXEN_PORT_MODE_AUTO_NEG;
388 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
391 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
392 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
393 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
394 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
395 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
397 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
401 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
406 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
408 pci_read_config_dword(pdev, pos, &control);
410 control |= PCI_MSIX_FLAGS_ENABLE;
413 pci_write_config_dword(pdev, pos, control);
417 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
421 for (i = 0; i < count; i++)
422 adapter->msix_entries[i].entry = i;
426 netxen_read_mac_addr(struct netxen_adapter *adapter)
431 struct net_device *netdev = adapter->netdev;
432 struct pci_dev *pdev = adapter->pdev;
434 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
435 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
438 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
442 p = (unsigned char *)&mac_addr;
443 for (i = 0; i < 6; i++)
444 netdev->dev_addr[i] = *(p + 5 - i);
446 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
447 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
449 /* set station address */
451 if (!is_valid_ether_addr(netdev->perm_addr))
452 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
457 static int netxen_nic_set_mac(struct net_device *netdev, void *p)
459 struct netxen_adapter *adapter = netdev_priv(netdev);
460 struct sockaddr *addr = p;
462 if (!is_valid_ether_addr(addr->sa_data))
465 if (netif_running(netdev)) {
466 netif_device_detach(netdev);
467 netxen_napi_disable(adapter);
470 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
471 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
472 adapter->macaddr_set(adapter, addr->sa_data);
474 if (netif_running(netdev)) {
475 netif_device_attach(netdev);
476 netxen_napi_enable(adapter);
481 static void netxen_set_multicast_list(struct net_device *dev)
483 struct netxen_adapter *adapter = netdev_priv(dev);
485 adapter->set_multi(dev);
488 static const struct net_device_ops netxen_netdev_ops = {
489 .ndo_open = netxen_nic_open,
490 .ndo_stop = netxen_nic_close,
491 .ndo_start_xmit = netxen_nic_xmit_frame,
492 .ndo_get_stats = netxen_nic_get_stats,
493 .ndo_validate_addr = eth_validate_addr,
494 .ndo_set_multicast_list = netxen_set_multicast_list,
495 .ndo_set_mac_address = netxen_nic_set_mac,
496 .ndo_change_mtu = netxen_nic_change_mtu,
497 .ndo_tx_timeout = netxen_tx_timeout,
498 #ifdef CONFIG_NET_POLL_CONTROLLER
499 .ndo_poll_controller = netxen_nic_poll_controller,
504 netxen_setup_intr(struct netxen_adapter *adapter)
506 struct netxen_legacy_intr_set *legacy_intrp;
507 struct pci_dev *pdev = adapter->pdev;
510 if (adapter->rss_supported) {
511 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
512 MSIX_ENTRIES_PER_ADAPTER : 2;
516 adapter->max_sds_rings = 1;
518 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
520 if (adapter->ahw.revision_id >= NX_P3_B0)
521 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
523 legacy_intrp = &legacy_intr[0];
525 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
526 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
527 legacy_intrp->tgt_status_reg);
528 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
529 legacy_intrp->tgt_mask_reg);
530 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
531 legacy_intrp->pci_int_reg);
532 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
534 if (adapter->ahw.revision_id >= NX_P3_B1)
535 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
538 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
541 netxen_set_msix_bit(pdev, 0);
543 if (adapter->msix_supported) {
545 netxen_init_msix_entries(adapter, num_msix);
546 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
548 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
549 netxen_set_msix_bit(pdev, 1);
551 if (adapter->rss_supported)
552 adapter->max_sds_rings = num_msix;
554 dev_info(&pdev->dev, "using msi-x interrupts\n");
559 pci_disable_msix(pdev);
561 /* fall through for msi */
564 if (use_msi && !pci_enable_msi(pdev)) {
565 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
566 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
567 msi_tgt_status[adapter->ahw.pci_func]);
568 dev_info(&pdev->dev, "using msi interrupts\n");
569 adapter->msix_entries[0].vector = pdev->irq;
573 dev_info(&pdev->dev, "using legacy interrupts\n");
574 adapter->msix_entries[0].vector = pdev->irq;
578 netxen_teardown_intr(struct netxen_adapter *adapter)
580 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
581 pci_disable_msix(adapter->pdev);
582 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
583 pci_disable_msi(adapter->pdev);
587 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
589 if (adapter->ahw.db_base != NULL)
590 iounmap(adapter->ahw.db_base);
591 if (adapter->ahw.pci_base0 != NULL)
592 iounmap(adapter->ahw.pci_base0);
593 if (adapter->ahw.pci_base1 != NULL)
594 iounmap(adapter->ahw.pci_base1);
595 if (adapter->ahw.pci_base2 != NULL)
596 iounmap(adapter->ahw.pci_base2);
600 netxen_setup_pci_map(struct netxen_adapter *adapter)
602 void __iomem *db_ptr = NULL;
604 resource_size_t mem_base, db_base;
605 unsigned long mem_len, db_len = 0;
607 struct pci_dev *pdev = adapter->pdev;
608 int pci_func = adapter->ahw.pci_func;
609 struct netxen_hardware_context *ahw = &adapter->ahw;
614 * Set the CRB window to invalid. If any register in window 0 is
615 * accessed it should set the window to 0 and then reset it to 1.
617 adapter->ahw.crb_win = -1;
618 adapter->ahw.ocm_win = -1;
620 /* remap phys address */
621 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
622 mem_len = pci_resource_len(pdev, 0);
624 /* 128 Meg of memory */
625 if (mem_len == NETXEN_PCI_128MB_SIZE) {
627 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
628 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
629 SECOND_PAGE_GROUP_SIZE);
630 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
631 THIRD_PAGE_GROUP_SIZE);
632 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
633 ahw->pci_base2 == NULL) {
634 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
639 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
641 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
643 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
644 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
645 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
646 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
647 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
652 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
654 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
655 if (ahw->pci_base0 == NULL) {
656 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
659 ahw->pci_len0 = mem_len;
664 netxen_setup_hwops(adapter);
666 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
668 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
669 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
670 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
672 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
673 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
674 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
677 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
680 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
681 db_len = pci_resource_len(pdev, 4);
684 printk(KERN_ERR "%s: doorbell is disabled\n",
685 netxen_nic_driver_name);
690 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
692 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
693 netxen_nic_driver_name);
699 adapter->ahw.db_base = db_ptr;
700 adapter->ahw.db_len = db_len;
704 netxen_cleanup_pci_map(adapter);
709 netxen_check_options(struct netxen_adapter *adapter)
711 u32 fw_major, fw_minor, fw_build;
712 char brd_name[NETXEN_MAX_SHORT_NAME];
716 struct pci_dev *pdev = adapter->pdev;
718 adapter->driver_mismatch = 0;
720 ptr32 = (int *)&serial_num;
721 offset = NX_FW_SERIAL_NUM_OFFSET;
722 for (i = 0; i < 8; i++) {
723 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
724 dev_err(&pdev->dev, "error reading board info\n");
725 adapter->driver_mismatch = 1;
728 ptr32[i] = cpu_to_le32(val);
729 offset += sizeof(u32);
732 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
733 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
734 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
736 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
738 if (adapter->portnum == 0) {
739 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
741 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
742 module_name(THIS_MODULE),
743 brd_name, serial_num, adapter->ahw.revision_id);
746 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
747 adapter->driver_mismatch = 1;
748 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
749 fw_major, fw_minor, fw_build);
753 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
754 i = NXRD32(adapter, NETXEN_SRE_MISC);
755 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
758 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
759 fw_major, fw_minor, fw_build,
760 adapter->ahw.cut_through ? "cut-through" : "legacy");
762 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
763 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
765 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
766 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
767 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
768 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
769 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
770 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
773 adapter->msix_supported = 0;
774 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
775 adapter->msix_supported = !!use_msi_x;
776 adapter->rss_supported = !!use_msi_x;
779 netxen_rom_fast_read(adapter,
780 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
781 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
783 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
784 switch (adapter->ahw.board_type) {
785 case NETXEN_BRDTYPE_P2_SB31_10G:
786 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
787 adapter->msix_supported = !!use_msi_x;
788 adapter->rss_supported = !!use_msi_x;
796 adapter->num_txd = MAX_CMD_DESCRIPTORS;
798 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
799 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
800 adapter->max_rds_rings = 3;
802 adapter->num_lro_rxd = 0;
803 adapter->max_rds_rings = 2;
808 netxen_start_firmware(struct netxen_adapter *adapter)
810 int val, err, first_boot;
811 struct pci_dev *pdev = adapter->pdev;
813 /* required for NX2031 dummy dma */
814 err = nx_set_dma_mask(adapter);
818 if (!netxen_can_start_firmware(adapter))
821 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
823 err = netxen_check_hw_init(adapter, first_boot);
825 dev_err(&pdev->dev, "error in init HW init sequence\n");
829 netxen_request_firmware(adapter);
831 err = netxen_need_fw_reset(adapter);
837 if (first_boot != 0x55555555) {
838 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
839 netxen_pinit_from_rom(adapter);
843 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
844 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
845 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
847 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
848 netxen_set_port_mode(adapter);
850 err = netxen_load_firmware(adapter);
854 netxen_release_firmware(adapter);
856 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
858 /* Initialize multicast addr pool owners */
860 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
862 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
866 err = netxen_init_dummy_dma(adapter);
871 * Tell the hardware our version number.
873 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
874 | ((_NETXEN_NIC_LINUX_MINOR << 8))
875 | (_NETXEN_NIC_LINUX_SUBVERSION);
876 NXWR32(adapter, CRB_DRIVER_VERSION, val);
879 /* Handshake with the card before we register the devices. */
880 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
882 netxen_free_dummy_dma(adapter);
886 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
888 nx_update_dma_mask(adapter);
890 netxen_check_options(adapter);
892 adapter->need_fw_reset = 0;
894 /* fall through and release firmware */
897 netxen_release_firmware(adapter);
902 netxen_nic_request_irq(struct netxen_adapter *adapter)
904 irq_handler_t handler;
905 struct nx_host_sds_ring *sds_ring;
908 unsigned long flags = IRQF_SAMPLE_RANDOM;
909 struct net_device *netdev = adapter->netdev;
910 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
912 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
913 handler = netxen_msix_intr;
914 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
915 handler = netxen_msi_intr;
917 flags |= IRQF_SHARED;
918 handler = netxen_intr;
920 adapter->irq = netdev->irq;
922 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
923 sds_ring = &recv_ctx->sds_rings[ring];
924 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
925 err = request_irq(sds_ring->irq, handler,
926 flags, sds_ring->name, sds_ring);
935 netxen_nic_free_irq(struct netxen_adapter *adapter)
938 struct nx_host_sds_ring *sds_ring;
940 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
942 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
943 sds_ring = &recv_ctx->sds_rings[ring];
944 free_irq(sds_ring->irq, sds_ring);
949 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
951 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
952 adapter->coal.normal.data.rx_time_us =
953 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
954 adapter->coal.normal.data.rx_packets =
955 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
956 adapter->coal.normal.data.tx_time_us =
957 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
958 adapter->coal.normal.data.tx_packets =
959 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
964 __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
968 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
971 err = adapter->init_port(adapter, adapter->physical_port);
973 printk(KERN_ERR "%s: Failed to initialize port %d\n",
974 netxen_nic_driver_name, adapter->portnum);
977 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
978 adapter->macaddr_set(adapter, adapter->mac_addr);
980 adapter->set_multi(netdev);
981 adapter->set_mtu(adapter, netdev->mtu);
983 adapter->ahw.linkup = 0;
985 if (adapter->max_sds_rings > 1)
986 netxen_config_rss(adapter, 1);
988 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
989 netxen_config_intr_coalesce(adapter);
991 if (netdev->features & NETIF_F_LRO)
992 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
994 netxen_napi_enable(adapter);
996 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
997 netxen_linkevent_request(adapter, 1);
999 netxen_nic_set_link_parameters(adapter);
1001 set_bit(__NX_DEV_UP, &adapter->state);
1005 /* Usage: During resume and firmware recovery module.*/
1008 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1013 if (netif_running(netdev))
1014 err = __netxen_nic_up(adapter, netdev);
1020 /* with rtnl_lock */
1022 __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1024 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1027 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1031 spin_lock(&adapter->tx_clean_lock);
1032 netif_carrier_off(netdev);
1033 netif_tx_disable(netdev);
1035 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1036 netxen_linkevent_request(adapter, 0);
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);
1242 err = register_netdev(netdev);
1244 dev_err(&pdev->dev, "failed to register net device\n");
1251 #ifdef CONFIG_PCIEAER
1252 static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1254 struct pci_dev *pdev = adapter->pdev;
1255 struct pci_dev *root = pdev->bus->self;
1258 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1259 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1262 if (root->pcie_type != PCI_EXP_TYPE_ROOT_PORT)
1265 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1269 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1273 static int __devinit
1274 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1276 struct net_device *netdev = NULL;
1277 struct netxen_adapter *adapter = NULL;
1279 int pci_func_id = PCI_FUNC(pdev->devfn);
1280 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 if (adapter->portnum == 0) {
1358 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1359 if (val != 0xffffffff && val != 0) {
1360 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1361 adapter->need_fw_reset = 1;
1365 err = netxen_start_firmware(adapter);
1367 goto err_out_decr_ref;
1370 * See if the firmware gave us a virtual-physical port mapping.
1372 adapter->physical_port = adapter->portnum;
1373 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1374 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1375 if (i != 0x55555555)
1376 adapter->physical_port = i;
1379 netxen_nic_clear_stats(adapter);
1381 netxen_setup_intr(adapter);
1383 err = netxen_setup_netdev(adapter, netdev);
1385 goto err_out_disable_msi;
1387 pci_set_drvdata(pdev, adapter);
1389 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1391 switch (adapter->ahw.port_type) {
1392 case NETXEN_NIC_GBE:
1393 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1394 adapter->netdev->name);
1396 case NETXEN_NIC_XGBE:
1397 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1398 adapter->netdev->name);
1402 netxen_create_diag_entries(adapter);
1406 err_out_disable_msi:
1407 netxen_teardown_intr(adapter);
1409 netxen_free_dummy_dma(adapter);
1412 nx_decr_dev_ref_cnt(adapter);
1415 netxen_cleanup_pci_map(adapter);
1417 err_out_free_netdev:
1418 free_netdev(netdev);
1421 pci_release_regions(pdev);
1423 err_out_disable_pdev:
1424 pci_set_drvdata(pdev, NULL);
1425 pci_disable_device(pdev);
1429 static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1431 struct netxen_adapter *adapter;
1432 struct net_device *netdev;
1434 adapter = pci_get_drvdata(pdev);
1435 if (adapter == NULL)
1438 netdev = adapter->netdev;
1440 netxen_cancel_fw_work(adapter);
1442 unregister_netdev(netdev);
1444 cancel_work_sync(&adapter->tx_timeout_task);
1446 netxen_nic_detach(adapter);
1448 nx_decr_dev_ref_cnt(adapter);
1450 if (adapter->portnum == 0)
1451 netxen_free_dummy_dma(adapter);
1453 clear_bit(__NX_RESETTING, &adapter->state);
1455 netxen_teardown_intr(adapter);
1457 netxen_remove_diag_entries(adapter);
1459 netxen_cleanup_pci_map(adapter);
1461 netxen_release_firmware(adapter);
1463 if (NX_IS_REVISION_P3(pdev->revision))
1464 pci_disable_pcie_error_reporting(pdev);
1466 pci_release_regions(pdev);
1467 pci_disable_device(pdev);
1468 pci_set_drvdata(pdev, NULL);
1470 free_netdev(netdev);
1473 static void netxen_nic_detach_func(struct netxen_adapter *adapter)
1475 struct net_device *netdev = adapter->netdev;
1477 netif_device_detach(netdev);
1479 netxen_cancel_fw_work(adapter);
1481 if (netif_running(netdev))
1482 netxen_nic_down(adapter, netdev);
1484 cancel_work_sync(&adapter->tx_timeout_task);
1486 netxen_nic_detach(adapter);
1488 if (adapter->portnum == 0)
1489 netxen_free_dummy_dma(adapter);
1491 nx_decr_dev_ref_cnt(adapter);
1493 clear_bit(__NX_RESETTING, &adapter->state);
1496 static int netxen_nic_attach_func(struct pci_dev *pdev)
1498 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1499 struct net_device *netdev = adapter->netdev;
1502 err = pci_enable_device(pdev);
1506 pci_set_power_state(pdev, PCI_D0);
1507 pci_set_master(pdev);
1508 pci_restore_state(pdev);
1510 adapter->ahw.crb_win = -1;
1511 adapter->ahw.ocm_win = -1;
1513 err = netxen_start_firmware(adapter);
1515 dev_err(&pdev->dev, "failed to start firmware\n");
1519 if (netif_running(netdev)) {
1520 err = netxen_nic_attach(adapter);
1524 err = netxen_nic_up(adapter, netdev);
1526 goto err_out_detach;
1528 netxen_config_indev_addr(netdev, NETDEV_UP);
1531 netif_device_attach(netdev);
1532 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1536 netxen_nic_detach(adapter);
1538 nx_decr_dev_ref_cnt(adapter);
1542 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1543 pci_channel_state_t state)
1545 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1547 if (state == pci_channel_io_perm_failure)
1548 return PCI_ERS_RESULT_DISCONNECT;
1550 if (nx_dev_request_aer(adapter))
1551 return PCI_ERS_RESULT_RECOVERED;
1553 netxen_nic_detach_func(adapter);
1555 pci_disable_device(pdev);
1557 return PCI_ERS_RESULT_NEED_RESET;
1560 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1564 err = netxen_nic_attach_func(pdev);
1566 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1569 static void netxen_io_resume(struct pci_dev *pdev)
1571 pci_cleanup_aer_uncorrect_error_status(pdev);
1574 static void netxen_nic_shutdown(struct pci_dev *pdev)
1576 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1578 netxen_nic_detach_func(adapter);
1580 if (pci_save_state(pdev))
1583 if (netxen_nic_wol_supported(adapter)) {
1584 pci_enable_wake(pdev, PCI_D3cold, 1);
1585 pci_enable_wake(pdev, PCI_D3hot, 1);
1588 pci_disable_device(pdev);
1593 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1595 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1598 netxen_nic_detach_func(adapter);
1600 retval = pci_save_state(pdev);
1604 if (netxen_nic_wol_supported(adapter)) {
1605 pci_enable_wake(pdev, PCI_D3cold, 1);
1606 pci_enable_wake(pdev, PCI_D3hot, 1);
1609 pci_disable_device(pdev);
1610 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1616 netxen_nic_resume(struct pci_dev *pdev)
1618 return netxen_nic_attach_func(pdev);
1622 static int netxen_nic_open(struct net_device *netdev)
1624 struct netxen_adapter *adapter = netdev_priv(netdev);
1627 if (adapter->driver_mismatch)
1630 err = netxen_nic_attach(adapter);
1634 err = __netxen_nic_up(adapter, netdev);
1638 netif_start_queue(netdev);
1643 netxen_nic_detach(adapter);
1648 * netxen_nic_close - Disables a network interface entry point
1650 static int netxen_nic_close(struct net_device *netdev)
1652 struct netxen_adapter *adapter = netdev_priv(netdev);
1654 __netxen_nic_down(adapter, netdev);
1659 netxen_tso_check(struct net_device *netdev,
1660 struct nx_host_tx_ring *tx_ring,
1661 struct cmd_desc_type0 *first_desc,
1662 struct sk_buff *skb)
1664 u8 opcode = TX_ETHER_PKT;
1665 __be16 protocol = skb->protocol;
1666 u16 flags = 0, vid = 0;
1668 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1669 struct cmd_desc_type0 *hwdesc;
1670 struct vlan_ethhdr *vh;
1672 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1674 vh = (struct vlan_ethhdr *)skb->data;
1675 protocol = vh->h_vlan_encapsulated_proto;
1676 flags = FLAGS_VLAN_TAGGED;
1678 } else if (vlan_tx_tag_present(skb)) {
1680 flags = FLAGS_VLAN_OOB;
1681 vid = vlan_tx_tag_get(skb);
1682 netxen_set_tx_vlan_tci(first_desc, vid);
1686 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1687 skb_shinfo(skb)->gso_size > 0) {
1689 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1691 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1692 first_desc->total_hdr_length = hdr_len;
1694 first_desc->total_hdr_length += VLAN_HLEN;
1695 first_desc->tcp_hdr_offset = VLAN_HLEN;
1696 first_desc->ip_hdr_offset = VLAN_HLEN;
1697 /* Only in case of TSO on vlan device */
1698 flags |= FLAGS_VLAN_TAGGED;
1701 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1702 TX_TCP_LSO6 : TX_TCP_LSO;
1705 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1708 if (protocol == cpu_to_be16(ETH_P_IP)) {
1709 l4proto = ip_hdr(skb)->protocol;
1711 if (l4proto == IPPROTO_TCP)
1712 opcode = TX_TCP_PKT;
1713 else if(l4proto == IPPROTO_UDP)
1714 opcode = TX_UDP_PKT;
1715 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1716 l4proto = ipv6_hdr(skb)->nexthdr;
1718 if (l4proto == IPPROTO_TCP)
1719 opcode = TX_TCPV6_PKT;
1720 else if(l4proto == IPPROTO_UDP)
1721 opcode = TX_UDPV6_PKT;
1725 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1726 first_desc->ip_hdr_offset += skb_network_offset(skb);
1727 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1732 /* For LSO, we need to copy the MAC/IP/TCP headers into
1733 * the descriptor ring
1735 producer = tx_ring->producer;
1740 /* Create a TSO vlan header template for firmware */
1742 hwdesc = &tx_ring->desc_head[producer];
1743 tx_ring->cmd_buf_arr[producer].skb = NULL;
1745 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1746 hdr_len + VLAN_HLEN);
1748 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1749 skb_copy_from_linear_data(skb, vh, 12);
1750 vh->h_vlan_proto = htons(ETH_P_8021Q);
1751 vh->h_vlan_TCI = htons(vid);
1752 skb_copy_from_linear_data_offset(skb, 12,
1753 (char *)vh + 16, copy_len - 16);
1755 copied = copy_len - VLAN_HLEN;
1758 producer = get_next_index(producer, tx_ring->num_desc);
1761 while (copied < hdr_len) {
1763 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1764 (hdr_len - copied));
1766 hwdesc = &tx_ring->desc_head[producer];
1767 tx_ring->cmd_buf_arr[producer].skb = NULL;
1769 skb_copy_from_linear_data_offset(skb, copied,
1770 (char *)hwdesc + offset, copy_len);
1775 producer = get_next_index(producer, tx_ring->num_desc);
1778 tx_ring->producer = producer;
1783 netxen_map_tx_skb(struct pci_dev *pdev,
1784 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1786 struct netxen_skb_frag *nf;
1787 struct skb_frag_struct *frag;
1791 nr_frags = skb_shinfo(skb)->nr_frags;
1792 nf = &pbuf->frag_array[0];
1794 map = pci_map_single(pdev, skb->data,
1795 skb_headlen(skb), PCI_DMA_TODEVICE);
1796 if (pci_dma_mapping_error(pdev, map))
1800 nf->length = skb_headlen(skb);
1802 for (i = 0; i < nr_frags; i++) {
1803 frag = &skb_shinfo(skb)->frags[i];
1804 nf = &pbuf->frag_array[i+1];
1806 map = pci_map_page(pdev, frag->page, frag->page_offset,
1807 frag->size, PCI_DMA_TODEVICE);
1808 if (pci_dma_mapping_error(pdev, map))
1812 nf->length = frag->size;
1819 nf = &pbuf->frag_array[i+1];
1820 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1823 nf = &pbuf->frag_array[0];
1824 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1831 netxen_clear_cmddesc(u64 *desc)
1838 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1840 struct netxen_adapter *adapter = netdev_priv(netdev);
1841 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1842 struct netxen_cmd_buffer *pbuf;
1843 struct netxen_skb_frag *buffrag;
1844 struct cmd_desc_type0 *hwdesc, *first_desc;
1845 struct pci_dev *pdev;
1848 struct skb_frag_struct *frag;
1851 int frag_count, no_of_desc;
1852 u32 num_txd = tx_ring->num_desc;
1854 frag_count = skb_shinfo(skb)->nr_frags + 1;
1856 /* 14 frags supported for normal packet and
1857 * 32 frags supported for TSO packet
1859 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
1861 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
1862 frag = &skb_shinfo(skb)->frags[i];
1863 delta += frag->size;
1866 if (!__pskb_pull_tail(skb, delta))
1869 frag_count = 1 + skb_shinfo(skb)->nr_frags;
1871 /* 4 fragments per cmd des */
1872 no_of_desc = (frag_count + 3) >> 2;
1874 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
1875 netif_stop_queue(netdev);
1877 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
1878 netif_start_queue(netdev);
1880 return NETDEV_TX_BUSY;
1883 producer = tx_ring->producer;
1884 pbuf = &tx_ring->cmd_buf_arr[producer];
1886 pdev = adapter->pdev;
1888 if (netxen_map_tx_skb(pdev, skb, pbuf))
1892 pbuf->frag_count = frag_count;
1894 first_desc = hwdesc = &tx_ring->desc_head[producer];
1895 netxen_clear_cmddesc((u64 *)hwdesc);
1897 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
1898 netxen_set_tx_port(first_desc, adapter->portnum);
1900 for (i = 0; i < frag_count; i++) {
1904 if ((k == 0) && (i > 0)) {
1905 /* move to next desc.*/
1906 producer = get_next_index(producer, num_txd);
1907 hwdesc = &tx_ring->desc_head[producer];
1908 netxen_clear_cmddesc((u64 *)hwdesc);
1909 tx_ring->cmd_buf_arr[producer].skb = NULL;
1912 buffrag = &pbuf->frag_array[i];
1914 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
1917 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
1920 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
1923 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
1926 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
1931 tx_ring->producer = get_next_index(producer, num_txd);
1933 netxen_tso_check(netdev, tx_ring, first_desc, skb);
1935 netxen_nic_update_cmd_producer(adapter, tx_ring);
1937 adapter->stats.txbytes += skb->len;
1938 adapter->stats.xmitcalled++;
1940 return NETDEV_TX_OK;
1943 adapter->stats.txdropped++;
1944 dev_kfree_skb_any(skb);
1945 return NETDEV_TX_OK;
1948 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
1950 struct net_device *netdev = adapter->netdev;
1951 uint32_t temp, temp_state, temp_val;
1954 temp = NXRD32(adapter, CRB_TEMP_STATE);
1956 temp_state = nx_get_temp_state(temp);
1957 temp_val = nx_get_temp_val(temp);
1959 if (temp_state == NX_TEMP_PANIC) {
1961 "%s: Device temperature %d degrees C exceeds"
1962 " maximum allowed. Hardware has been shut down.\n",
1963 netdev->name, temp_val);
1965 } else if (temp_state == NX_TEMP_WARN) {
1966 if (adapter->temp == NX_TEMP_NORMAL) {
1968 "%s: Device temperature %d degrees C "
1969 "exceeds operating range."
1970 " Immediate action needed.\n",
1971 netdev->name, temp_val);
1974 if (adapter->temp == NX_TEMP_WARN) {
1976 "%s: Device temperature is now %d degrees C"
1977 " in normal range.\n", netdev->name,
1981 adapter->temp = temp_state;
1985 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
1987 struct net_device *netdev = adapter->netdev;
1989 if (adapter->ahw.linkup && !linkup) {
1990 printk(KERN_INFO "%s: %s NIC Link is down\n",
1991 netxen_nic_driver_name, netdev->name);
1992 adapter->ahw.linkup = 0;
1993 if (netif_running(netdev)) {
1994 netif_carrier_off(netdev);
1995 netif_stop_queue(netdev);
1997 adapter->link_changed = !adapter->has_link_events;
1998 } else if (!adapter->ahw.linkup && linkup) {
1999 printk(KERN_INFO "%s: %s NIC Link is up\n",
2000 netxen_nic_driver_name, netdev->name);
2001 adapter->ahw.linkup = 1;
2002 if (netif_running(netdev)) {
2003 netif_carrier_on(netdev);
2004 netif_wake_queue(netdev);
2006 adapter->link_changed = !adapter->has_link_events;
2010 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2012 u32 val, port, linkup;
2014 port = adapter->physical_port;
2016 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2017 val = NXRD32(adapter, CRB_XG_STATE_P3);
2018 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2019 linkup = (val == XG_LINK_UP_P3);
2021 val = NXRD32(adapter, CRB_XG_STATE);
2022 val = (val >> port*8) & 0xff;
2023 linkup = (val == XG_LINK_UP);
2026 netxen_advert_link_change(adapter, linkup);
2029 static void netxen_tx_timeout(struct net_device *netdev)
2031 struct netxen_adapter *adapter = netdev_priv(netdev);
2033 if (test_bit(__NX_RESETTING, &adapter->state))
2036 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2037 schedule_work(&adapter->tx_timeout_task);
2040 static void netxen_tx_timeout_task(struct work_struct *work)
2042 struct netxen_adapter *adapter =
2043 container_of(work, struct netxen_adapter, tx_timeout_task);
2045 if (!netif_running(adapter->netdev))
2048 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
2051 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2055 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2056 /* try to scrub interrupt */
2057 netxen_napi_disable(adapter);
2059 netxen_napi_enable(adapter);
2061 netif_wake_queue(adapter->netdev);
2063 clear_bit(__NX_RESETTING, &adapter->state);
2065 clear_bit(__NX_RESETTING, &adapter->state);
2066 if (netxen_nic_reset_context(adapter)) {
2071 adapter->netdev->trans_start = jiffies;
2076 adapter->need_fw_reset = 1;
2077 clear_bit(__NX_RESETTING, &adapter->state);
2080 static struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev)
2082 struct netxen_adapter *adapter = netdev_priv(netdev);
2083 struct net_device_stats *stats = &netdev->stats;
2085 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2086 stats->tx_packets = adapter->stats.xmitfinished;
2087 stats->rx_bytes = adapter->stats.rxbytes;
2088 stats->tx_bytes = adapter->stats.txbytes;
2089 stats->rx_dropped = adapter->stats.rxdropped;
2090 stats->tx_dropped = adapter->stats.txdropped;
2095 static irqreturn_t netxen_intr(int irq, void *data)
2097 struct nx_host_sds_ring *sds_ring = data;
2098 struct netxen_adapter *adapter = sds_ring->adapter;
2101 status = readl(adapter->isr_int_vec);
2103 if (!(status & adapter->int_vec_bit))
2106 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2107 /* check interrupt state machine, to be sure */
2108 status = readl(adapter->crb_int_state_reg);
2109 if (!ISR_LEGACY_INT_TRIGGERED(status))
2113 unsigned long our_int = 0;
2115 our_int = readl(adapter->crb_int_state_reg);
2117 /* not our interrupt */
2118 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2121 /* claim interrupt */
2122 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2124 /* clear interrupt */
2125 netxen_nic_disable_int(sds_ring);
2128 writel(0xffffffff, adapter->tgt_status_reg);
2129 /* read twice to ensure write is flushed */
2130 readl(adapter->isr_int_vec);
2131 readl(adapter->isr_int_vec);
2133 napi_schedule(&sds_ring->napi);
2138 static irqreturn_t netxen_msi_intr(int irq, void *data)
2140 struct nx_host_sds_ring *sds_ring = data;
2141 struct netxen_adapter *adapter = sds_ring->adapter;
2143 /* clear interrupt */
2144 writel(0xffffffff, adapter->tgt_status_reg);
2146 napi_schedule(&sds_ring->napi);
2150 static irqreturn_t netxen_msix_intr(int irq, void *data)
2152 struct nx_host_sds_ring *sds_ring = data;
2154 napi_schedule(&sds_ring->napi);
2158 static int netxen_nic_poll(struct napi_struct *napi, int budget)
2160 struct nx_host_sds_ring *sds_ring =
2161 container_of(napi, struct nx_host_sds_ring, napi);
2163 struct netxen_adapter *adapter = sds_ring->adapter;
2168 tx_complete = netxen_process_cmd_ring(adapter);
2170 work_done = netxen_process_rcv_ring(sds_ring, budget);
2172 if ((work_done < budget) && tx_complete) {
2173 napi_complete(&sds_ring->napi);
2174 if (test_bit(__NX_DEV_UP, &adapter->state))
2175 netxen_nic_enable_int(sds_ring);
2181 #ifdef CONFIG_NET_POLL_CONTROLLER
2182 static void netxen_nic_poll_controller(struct net_device *netdev)
2185 struct nx_host_sds_ring *sds_ring;
2186 struct netxen_adapter *adapter = netdev_priv(netdev);
2187 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2189 disable_irq(adapter->irq);
2190 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2191 sds_ring = &recv_ctx->sds_rings[ring];
2192 netxen_intr(adapter->irq, sds_ring);
2194 enable_irq(adapter->irq);
2199 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2202 if (netxen_api_lock(adapter))
2205 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2207 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2209 netxen_api_unlock(adapter);
2214 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2217 if (netxen_api_lock(adapter))
2220 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2221 WARN_ON(count == 0);
2223 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2226 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2228 netxen_api_unlock(adapter);
2233 nx_dev_request_aer(struct netxen_adapter *adapter)
2238 if (netxen_api_lock(adapter))
2241 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2243 if (state == NX_DEV_NEED_AER)
2245 else if (state == NX_DEV_READY) {
2246 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2250 netxen_api_unlock(adapter);
2255 nx_dev_request_reset(struct netxen_adapter *adapter)
2260 if (netxen_api_lock(adapter))
2263 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2265 if (state == NX_DEV_NEED_RESET)
2267 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
2268 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2272 netxen_api_unlock(adapter);
2278 netxen_can_start_firmware(struct netxen_adapter *adapter)
2283 if (netxen_api_lock(adapter))
2286 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2288 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2293 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2296 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2298 netxen_api_unlock(adapter);
2304 netxen_schedule_work(struct netxen_adapter *adapter,
2305 work_func_t func, int delay)
2307 INIT_DELAYED_WORK(&adapter->fw_work, func);
2308 schedule_delayed_work(&adapter->fw_work, delay);
2312 netxen_cancel_fw_work(struct netxen_adapter *adapter)
2314 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2317 cancel_delayed_work_sync(&adapter->fw_work);
2321 netxen_attach_work(struct work_struct *work)
2323 struct netxen_adapter *adapter = container_of(work,
2324 struct netxen_adapter, fw_work.work);
2325 struct net_device *netdev = adapter->netdev;
2328 if (netif_running(netdev)) {
2329 err = netxen_nic_attach(adapter);
2333 err = netxen_nic_up(adapter, netdev);
2335 netxen_nic_detach(adapter);
2339 netxen_config_indev_addr(netdev, NETDEV_UP);
2342 netif_device_attach(netdev);
2345 adapter->fw_fail_cnt = 0;
2346 clear_bit(__NX_RESETTING, &adapter->state);
2347 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2351 netxen_fwinit_work(struct work_struct *work)
2353 struct netxen_adapter *adapter = container_of(work,
2354 struct netxen_adapter, fw_work.work);
2357 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2359 switch (dev_state) {
2362 if (!netxen_start_firmware(adapter)) {
2363 netxen_schedule_work(adapter, netxen_attach_work, 0);
2368 case NX_DEV_NEED_RESET:
2369 case NX_DEV_INITALIZING:
2370 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2371 netxen_schedule_work(adapter,
2372 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2378 nx_incr_dev_ref_cnt(adapter);
2382 clear_bit(__NX_RESETTING, &adapter->state);
2386 netxen_detach_work(struct work_struct *work)
2388 struct netxen_adapter *adapter = container_of(work,
2389 struct netxen_adapter, fw_work.work);
2390 struct net_device *netdev = adapter->netdev;
2394 netif_device_detach(netdev);
2396 netxen_nic_down(adapter, netdev);
2399 netxen_nic_detach(adapter);
2402 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2404 if (status & NX_RCODE_FATAL_ERROR)
2407 if (adapter->temp == NX_TEMP_PANIC)
2410 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2412 if (ref_cnt == -EIO)
2415 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2417 adapter->fw_wait_cnt = 0;
2418 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2423 clear_bit(__NX_RESETTING, &adapter->state);
2427 netxen_check_health(struct netxen_adapter *adapter)
2429 u32 state, heartbit;
2430 struct net_device *netdev = adapter->netdev;
2432 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2433 if (state == NX_DEV_NEED_AER)
2436 if (netxen_nic_check_temp(adapter))
2439 if (adapter->need_fw_reset) {
2440 if (nx_dev_request_reset(adapter))
2445 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2446 * 1. Tx timeout 2. Fw hang
2447 * Send request to destroy context in case of tx timeout only
2448 * and doesn't required in case of Fw hang
2450 if (state == NX_DEV_NEED_RESET) {
2451 adapter->need_fw_reset = 1;
2452 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2456 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2459 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2460 if (heartbit != adapter->heartbit) {
2461 adapter->heartbit = heartbit;
2462 adapter->fw_fail_cnt = 0;
2463 if (adapter->need_fw_reset)
2468 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2471 if (nx_dev_request_reset(adapter))
2474 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2476 dev_info(&netdev->dev, "firmware hang detected\n");
2479 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2480 !test_and_set_bit(__NX_RESETTING, &adapter->state))
2481 netxen_schedule_work(adapter, netxen_detach_work, 0);
2486 netxen_fw_poll_work(struct work_struct *work)
2488 struct netxen_adapter *adapter = container_of(work,
2489 struct netxen_adapter, fw_work.work);
2491 if (test_bit(__NX_RESETTING, &adapter->state))
2494 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2495 if (!adapter->has_link_events) {
2497 netxen_nic_handle_phy_intr(adapter);
2499 if (adapter->link_changed)
2500 netxen_nic_set_link_parameters(adapter);
2504 if (netxen_check_health(adapter))
2508 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2512 netxen_store_bridged_mode(struct device *dev,
2513 struct device_attribute *attr, const char *buf, size_t len)
2515 struct net_device *net = to_net_dev(dev);
2516 struct netxen_adapter *adapter = netdev_priv(net);
2520 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2523 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2526 if (strict_strtoul(buf, 2, &new))
2529 if (!netxen_config_bridged_mode(adapter, !!new))
2537 netxen_show_bridged_mode(struct device *dev,
2538 struct device_attribute *attr, char *buf)
2540 struct net_device *net = to_net_dev(dev);
2541 struct netxen_adapter *adapter;
2542 int bridged_mode = 0;
2544 adapter = netdev_priv(net);
2546 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2547 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2549 return sprintf(buf, "%d\n", bridged_mode);
2552 static struct device_attribute dev_attr_bridged_mode = {
2553 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2554 .show = netxen_show_bridged_mode,
2555 .store = netxen_store_bridged_mode,
2559 netxen_store_diag_mode(struct device *dev,
2560 struct device_attribute *attr, const char *buf, size_t len)
2562 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2565 if (strict_strtoul(buf, 2, &new))
2568 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2569 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2575 netxen_show_diag_mode(struct device *dev,
2576 struct device_attribute *attr, char *buf)
2578 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2580 return sprintf(buf, "%d\n",
2581 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2584 static struct device_attribute dev_attr_diag_mode = {
2585 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2586 .show = netxen_show_diag_mode,
2587 .store = netxen_store_diag_mode,
2591 netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2592 loff_t offset, size_t size)
2594 size_t crb_size = 4;
2596 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2599 if (offset < NETXEN_PCI_CRBSPACE) {
2600 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2603 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2604 NETXEN_PCI_CAMQM_2M_END))
2610 if ((size != crb_size) || (offset & (crb_size-1)))
2617 netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2618 struct bin_attribute *attr,
2619 char *buf, loff_t offset, size_t size)
2621 struct device *dev = container_of(kobj, struct device, kobj);
2622 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2627 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2631 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2632 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2633 NETXEN_PCI_CAMQM_2M_END)) {
2634 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2635 memcpy(buf, &qmdata, size);
2637 data = NXRD32(adapter, offset);
2638 memcpy(buf, &data, size);
2645 netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2646 struct bin_attribute *attr,
2647 char *buf, loff_t offset, size_t size)
2649 struct device *dev = container_of(kobj, struct device, kobj);
2650 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2655 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2659 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2660 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2661 NETXEN_PCI_CAMQM_2M_END)) {
2662 memcpy(&qmdata, buf, size);
2663 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2665 memcpy(&data, buf, size);
2666 NXWR32(adapter, offset, data);
2673 netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2674 loff_t offset, size_t size)
2676 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2679 if ((size != 8) || (offset & 0x7))
2686 netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2687 struct bin_attribute *attr,
2688 char *buf, loff_t offset, size_t size)
2690 struct device *dev = container_of(kobj, struct device, kobj);
2691 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2695 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2699 if (adapter->pci_mem_read(adapter, offset, &data))
2702 memcpy(buf, &data, size);
2707 static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
2708 struct bin_attribute *attr, char *buf,
2709 loff_t offset, size_t size)
2711 struct device *dev = container_of(kobj, struct device, kobj);
2712 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2716 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2720 memcpy(&data, buf, size);
2722 if (adapter->pci_mem_write(adapter, offset, data))
2729 static struct bin_attribute bin_attr_crb = {
2730 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2732 .read = netxen_sysfs_read_crb,
2733 .write = netxen_sysfs_write_crb,
2736 static struct bin_attribute bin_attr_mem = {
2737 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2739 .read = netxen_sysfs_read_mem,
2740 .write = netxen_sysfs_write_mem,
2745 netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2747 struct net_device *netdev = adapter->netdev;
2748 struct device *dev = &netdev->dev;
2750 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2751 /* bridged_mode control */
2752 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2753 dev_warn(&netdev->dev,
2754 "failed to create bridged_mode sysfs entry\n");
2760 netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2762 struct net_device *netdev = adapter->netdev;
2763 struct device *dev = &netdev->dev;
2765 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2766 device_remove_file(dev, &dev_attr_bridged_mode);
2770 netxen_create_diag_entries(struct netxen_adapter *adapter)
2772 struct pci_dev *pdev = adapter->pdev;
2776 if (device_create_file(dev, &dev_attr_diag_mode))
2777 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2778 if (device_create_bin_file(dev, &bin_attr_crb))
2779 dev_info(dev, "failed to create crb sysfs entry\n");
2780 if (device_create_bin_file(dev, &bin_attr_mem))
2781 dev_info(dev, "failed to create mem sysfs entry\n");
2786 netxen_remove_diag_entries(struct netxen_adapter *adapter)
2788 struct pci_dev *pdev = adapter->pdev;
2789 struct device *dev = &pdev->dev;
2791 device_remove_file(dev, &dev_attr_diag_mode);
2792 device_remove_bin_file(dev, &bin_attr_crb);
2793 device_remove_bin_file(dev, &bin_attr_mem);
2798 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2801 netxen_destip_supported(struct netxen_adapter *adapter)
2803 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2806 if (adapter->ahw.cut_through)
2813 netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2815 struct in_device *indev;
2816 struct netxen_adapter *adapter = netdev_priv(dev);
2818 if (!netxen_destip_supported(adapter))
2821 indev = in_dev_get(dev);
2828 netxen_config_ipaddr(adapter,
2829 ifa->ifa_address, NX_IP_UP);
2832 netxen_config_ipaddr(adapter,
2833 ifa->ifa_address, NX_IP_DOWN);
2838 } endfor_ifa(indev);
2843 static int netxen_netdev_event(struct notifier_block *this,
2844 unsigned long event, void *ptr)
2846 struct netxen_adapter *adapter;
2847 struct net_device *dev = (struct net_device *)ptr;
2853 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2854 dev = vlan_dev_real_dev(dev);
2858 if (!is_netxen_netdev(dev))
2861 adapter = netdev_priv(dev);
2866 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2869 netxen_config_indev_addr(dev, event);
2875 netxen_inetaddr_event(struct notifier_block *this,
2876 unsigned long event, void *ptr)
2878 struct netxen_adapter *adapter;
2879 struct net_device *dev;
2881 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
2883 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2886 if (dev == NULL || !netif_running(dev))
2889 if (dev->priv_flags & IFF_802_1Q_VLAN) {
2890 dev = vlan_dev_real_dev(dev);
2894 if (!is_netxen_netdev(dev))
2897 adapter = netdev_priv(dev);
2899 if (!adapter || !netxen_destip_supported(adapter))
2902 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2907 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
2910 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
2920 static struct notifier_block netxen_netdev_cb = {
2921 .notifier_call = netxen_netdev_event,
2924 static struct notifier_block netxen_inetaddr_cb = {
2925 .notifier_call = netxen_inetaddr_event,
2929 netxen_config_indev_addr(struct net_device *dev, unsigned long event)
2933 static struct pci_error_handlers netxen_err_handler = {
2934 .error_detected = netxen_io_error_detected,
2935 .slot_reset = netxen_io_slot_reset,
2936 .resume = netxen_io_resume,
2939 static struct pci_driver netxen_driver = {
2940 .name = netxen_nic_driver_name,
2941 .id_table = netxen_pci_tbl,
2942 .probe = netxen_nic_probe,
2943 .remove = __devexit_p(netxen_nic_remove),
2945 .suspend = netxen_nic_suspend,
2946 .resume = netxen_nic_resume,
2948 .shutdown = netxen_nic_shutdown,
2949 .err_handler = &netxen_err_handler
2952 static int __init netxen_init_module(void)
2954 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
2957 register_netdevice_notifier(&netxen_netdev_cb);
2958 register_inetaddr_notifier(&netxen_inetaddr_cb);
2960 return pci_register_driver(&netxen_driver);
2963 module_init(netxen_init_module);
2965 static void __exit netxen_exit_module(void)
2967 pci_unregister_driver(&netxen_driver);
2970 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
2971 unregister_netdevice_notifier(&netxen_netdev_cb);
2975 module_exit(netxen_exit_module);