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_free_vlan_ip_list(struct netxen_adapter *);
95 static void netxen_restore_indev_addr(struct net_device *dev, unsigned long);
96 static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *dev,
97 struct rtnl_link_stats64 *stats);
98 static int netxen_nic_set_mac(struct net_device *netdev, void *p);
100 /* PCI Device ID Table */
101 #define ENTRY(device) \
102 {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \
103 .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0}
105 static DEFINE_PCI_DEVICE_TABLE(netxen_pci_tbl) = {
106 ENTRY(PCI_DEVICE_ID_NX2031_10GXSR),
107 ENTRY(PCI_DEVICE_ID_NX2031_10GCX4),
108 ENTRY(PCI_DEVICE_ID_NX2031_4GCU),
109 ENTRY(PCI_DEVICE_ID_NX2031_IMEZ),
110 ENTRY(PCI_DEVICE_ID_NX2031_HMEZ),
111 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT),
112 ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2),
113 ENTRY(PCI_DEVICE_ID_NX3031),
117 MODULE_DEVICE_TABLE(pci, netxen_pci_tbl);
119 static uint32_t crb_cmd_producer[4] = {
120 CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1,
121 CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3
125 netxen_nic_update_cmd_producer(struct netxen_adapter *adapter,
126 struct nx_host_tx_ring *tx_ring)
128 NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer);
131 static uint32_t crb_cmd_consumer[4] = {
132 CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1,
133 CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3
137 netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter,
138 struct nx_host_tx_ring *tx_ring)
140 NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer);
143 static uint32_t msi_tgt_status[8] = {
144 ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1,
145 ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3,
146 ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5,
147 ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7
150 static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG;
152 static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring)
154 struct netxen_adapter *adapter = sds_ring->adapter;
156 NXWRIO(adapter, sds_ring->crb_intr_mask, 0);
159 static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring)
161 struct netxen_adapter *adapter = sds_ring->adapter;
163 NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1);
165 if (!NETXEN_IS_MSI_FAMILY(adapter))
166 NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff);
170 netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count)
172 int size = sizeof(struct nx_host_sds_ring) * count;
174 recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL);
176 return recv_ctx->sds_rings == NULL;
180 netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
182 if (recv_ctx->sds_rings != NULL)
183 kfree(recv_ctx->sds_rings);
185 recv_ctx->sds_rings = NULL;
189 netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
192 struct nx_host_sds_ring *sds_ring;
193 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
195 if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings))
198 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
199 sds_ring = &recv_ctx->sds_rings[ring];
200 netif_napi_add(netdev, &sds_ring->napi,
201 netxen_nic_poll, NETXEN_NETDEV_WEIGHT);
208 netxen_napi_del(struct netxen_adapter *adapter)
211 struct nx_host_sds_ring *sds_ring;
212 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
214 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
215 sds_ring = &recv_ctx->sds_rings[ring];
216 netif_napi_del(&sds_ring->napi);
219 netxen_free_sds_rings(&adapter->recv_ctx);
223 netxen_napi_enable(struct netxen_adapter *adapter)
226 struct nx_host_sds_ring *sds_ring;
227 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
229 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
230 sds_ring = &recv_ctx->sds_rings[ring];
231 napi_enable(&sds_ring->napi);
232 netxen_nic_enable_int(sds_ring);
237 netxen_napi_disable(struct netxen_adapter *adapter)
240 struct nx_host_sds_ring *sds_ring;
241 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
243 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
244 sds_ring = &recv_ctx->sds_rings[ring];
245 netxen_nic_disable_int(sds_ring);
246 napi_synchronize(&sds_ring->napi);
247 napi_disable(&sds_ring->napi);
251 static int nx_set_dma_mask(struct netxen_adapter *adapter)
253 struct pci_dev *pdev = adapter->pdev;
254 uint64_t mask, cmask;
256 adapter->pci_using_dac = 0;
258 mask = DMA_BIT_MASK(32);
259 cmask = DMA_BIT_MASK(32);
261 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
263 mask = DMA_BIT_MASK(35);
266 mask = DMA_BIT_MASK(39);
270 if (pci_set_dma_mask(pdev, mask) == 0 &&
271 pci_set_consistent_dma_mask(pdev, cmask) == 0) {
272 adapter->pci_using_dac = 1;
279 /* Update addressable range if firmware supports it */
281 nx_update_dma_mask(struct netxen_adapter *adapter)
283 int change, shift, err;
284 uint64_t mask, old_mask, old_cmask;
285 struct pci_dev *pdev = adapter->pdev;
289 shift = NXRD32(adapter, CRB_DMA_SHIFT);
293 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9))
295 else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4))
299 old_mask = pdev->dma_mask;
300 old_cmask = pdev->dev.coherent_dma_mask;
302 mask = DMA_BIT_MASK(32+shift);
304 err = pci_set_dma_mask(pdev, mask);
308 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
310 err = pci_set_consistent_dma_mask(pdev, mask);
314 dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift);
320 pci_set_dma_mask(pdev, old_mask);
321 pci_set_consistent_dma_mask(pdev, old_cmask);
326 netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot)
330 if (first_boot == 0x55555555) {
331 /* This is the first boot after power up */
332 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC);
334 if (!NX_IS_REVISION_P2(adapter->ahw.revision_id))
337 /* PCI bus master workaround */
338 first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4));
339 if (!(first_boot & 0x4)) {
341 NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot);
342 NXRD32(adapter, NETXEN_PCIE_REG(0x4));
345 /* This is the first boot after power up */
346 first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET);
347 if (first_boot != 0x80000f) {
348 /* clear the register for future unloads/loads */
349 NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0);
353 /* Start P2 boot loader */
354 val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE);
355 NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1);
359 val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
361 if (++timeout > 5000)
364 } while (val == NETXEN_BDINFO_MAGIC);
369 static void netxen_set_port_mode(struct netxen_adapter *adapter)
373 val = adapter->ahw.board_type;
374 if ((val == NETXEN_BRDTYPE_P3_HMEZ) ||
375 (val == NETXEN_BRDTYPE_P3_XG_LOM)) {
376 if (port_mode == NETXEN_PORT_MODE_802_3_AP) {
377 data = NETXEN_PORT_MODE_802_3_AP;
378 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
379 } else if (port_mode == NETXEN_PORT_MODE_XG) {
380 data = NETXEN_PORT_MODE_XG;
381 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
382 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) {
383 data = NETXEN_PORT_MODE_AUTO_NEG_1G;
384 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
385 } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) {
386 data = NETXEN_PORT_MODE_AUTO_NEG_XG;
387 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
389 data = NETXEN_PORT_MODE_AUTO_NEG;
390 NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data);
393 if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) &&
394 (wol_port_mode != NETXEN_PORT_MODE_XG) &&
395 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) &&
396 (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) {
397 wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG;
399 NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode);
403 #define PCI_CAP_ID_GEN 0x10
405 static void netxen_pcie_strap_init(struct netxen_adapter *adapter)
412 struct pci_dev *pdev;
414 pdev = adapter->pdev;
416 chicken = NXRD32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3));
417 /* clear chicken3.25:24 */
418 chicken &= 0xFCFFFFFF;
420 * if gen1 and B0, set F1020 - if gen 2, do nothing
421 * if gen2 set to F1000
423 pos = pci_find_capability(pdev, PCI_CAP_ID_GEN);
425 pci_read_config_dword(pdev, pos + 0x10, &control);
426 if ((control & 0x000F0000) != 0x00020000) {
427 /* set chicken3.24 if gen1 */
428 chicken |= 0x01000000;
430 dev_info(&adapter->pdev->dev, "Gen2 strapping detected\n");
433 /* set chicken3.24 if gen1 */
434 chicken |= 0x01000000;
435 dev_info(&adapter->pdev->dev, "Gen1 strapping detected\n");
436 if (adapter->ahw.revision_id == NX_P3_B0)
442 NXWR32(adapter, NETXEN_PCIE_REG(PCIE_CHICKEN3), chicken);
447 pdevfuncsave = pdev->devfn;
448 if (pdevfuncsave & 0x07)
451 for (i = 0; i < 8; i++) {
452 pci_read_config_dword(pdev, pos + 8, &control);
453 pci_read_config_dword(pdev, pos + 8, &control);
454 pci_write_config_dword(pdev, pos + 8, c8c9value);
457 pdev->devfn = pdevfuncsave;
460 static void netxen_set_msix_bit(struct pci_dev *pdev, int enable)
465 pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX);
467 pci_read_config_dword(pdev, pos, &control);
469 control |= PCI_MSIX_FLAGS_ENABLE;
472 pci_write_config_dword(pdev, pos, control);
476 static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count)
480 for (i = 0; i < count; i++)
481 adapter->msix_entries[i].entry = i;
485 netxen_read_mac_addr(struct netxen_adapter *adapter)
490 struct net_device *netdev = adapter->netdev;
491 struct pci_dev *pdev = adapter->pdev;
493 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
494 if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0)
497 if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0)
501 p = (unsigned char *)&mac_addr;
502 for (i = 0; i < 6; i++)
503 netdev->dev_addr[i] = *(p + 5 - i);
505 memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len);
506 memcpy(adapter->mac_addr, netdev->dev_addr, netdev->addr_len);
508 /* set station address */
510 if (!is_valid_ether_addr(netdev->perm_addr))
511 dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr);
516 static int netxen_nic_set_mac(struct net_device *netdev, void *p)
518 struct netxen_adapter *adapter = netdev_priv(netdev);
519 struct sockaddr *addr = p;
521 if (!is_valid_ether_addr(addr->sa_data))
524 if (netif_running(netdev)) {
525 netif_device_detach(netdev);
526 netxen_napi_disable(adapter);
529 memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len);
530 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
531 adapter->macaddr_set(adapter, addr->sa_data);
533 if (netif_running(netdev)) {
534 netif_device_attach(netdev);
535 netxen_napi_enable(adapter);
540 static void netxen_set_multicast_list(struct net_device *dev)
542 struct netxen_adapter *adapter = netdev_priv(dev);
544 adapter->set_multi(dev);
547 static u32 netxen_fix_features(struct net_device *dev, u32 features)
549 if (!(features & NETIF_F_RXCSUM)) {
550 netdev_info(dev, "disabling LRO as RXCSUM is off\n");
552 features &= ~NETIF_F_LRO;
558 static int netxen_set_features(struct net_device *dev, u32 features)
560 struct netxen_adapter *adapter = netdev_priv(dev);
563 if (!((dev->features ^ features) & NETIF_F_LRO))
566 hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED
567 : NETXEN_NIC_LRO_DISABLED;
569 if (netxen_config_hw_lro(adapter, hw_lro))
572 if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter))
578 static const struct net_device_ops netxen_netdev_ops = {
579 .ndo_open = netxen_nic_open,
580 .ndo_stop = netxen_nic_close,
581 .ndo_start_xmit = netxen_nic_xmit_frame,
582 .ndo_get_stats64 = netxen_nic_get_stats,
583 .ndo_validate_addr = eth_validate_addr,
584 .ndo_set_rx_mode = netxen_set_multicast_list,
585 .ndo_set_mac_address = netxen_nic_set_mac,
586 .ndo_change_mtu = netxen_nic_change_mtu,
587 .ndo_tx_timeout = netxen_tx_timeout,
588 .ndo_fix_features = netxen_fix_features,
589 .ndo_set_features = netxen_set_features,
590 #ifdef CONFIG_NET_POLL_CONTROLLER
591 .ndo_poll_controller = netxen_nic_poll_controller,
596 netxen_setup_intr(struct netxen_adapter *adapter)
598 struct netxen_legacy_intr_set *legacy_intrp;
599 struct pci_dev *pdev = adapter->pdev;
602 if (adapter->rss_supported) {
603 num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ?
604 MSIX_ENTRIES_PER_ADAPTER : 2;
608 adapter->max_sds_rings = 1;
610 adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED);
612 if (adapter->ahw.revision_id >= NX_P3_B0)
613 legacy_intrp = &legacy_intr[adapter->ahw.pci_func];
615 legacy_intrp = &legacy_intr[0];
617 adapter->int_vec_bit = legacy_intrp->int_vec_bit;
618 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
619 legacy_intrp->tgt_status_reg);
620 adapter->tgt_mask_reg = netxen_get_ioaddr(adapter,
621 legacy_intrp->tgt_mask_reg);
622 adapter->pci_int_reg = netxen_get_ioaddr(adapter,
623 legacy_intrp->pci_int_reg);
624 adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR);
626 if (adapter->ahw.revision_id >= NX_P3_B1)
627 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
630 adapter->crb_int_state_reg = netxen_get_ioaddr(adapter,
633 netxen_set_msix_bit(pdev, 0);
635 if (adapter->msix_supported) {
637 netxen_init_msix_entries(adapter, num_msix);
638 err = pci_enable_msix(pdev, adapter->msix_entries, num_msix);
640 adapter->flags |= NETXEN_NIC_MSIX_ENABLED;
641 netxen_set_msix_bit(pdev, 1);
643 if (adapter->rss_supported)
644 adapter->max_sds_rings = num_msix;
646 dev_info(&pdev->dev, "using msi-x interrupts\n");
651 pci_disable_msix(pdev);
653 /* fall through for msi */
656 if (use_msi && !pci_enable_msi(pdev)) {
657 adapter->flags |= NETXEN_NIC_MSI_ENABLED;
658 adapter->tgt_status_reg = netxen_get_ioaddr(adapter,
659 msi_tgt_status[adapter->ahw.pci_func]);
660 dev_info(&pdev->dev, "using msi interrupts\n");
661 adapter->msix_entries[0].vector = pdev->irq;
665 dev_info(&pdev->dev, "using legacy interrupts\n");
666 adapter->msix_entries[0].vector = pdev->irq;
670 netxen_teardown_intr(struct netxen_adapter *adapter)
672 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
673 pci_disable_msix(adapter->pdev);
674 if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
675 pci_disable_msi(adapter->pdev);
679 netxen_cleanup_pci_map(struct netxen_adapter *adapter)
681 if (adapter->ahw.db_base != NULL)
682 iounmap(adapter->ahw.db_base);
683 if (adapter->ahw.pci_base0 != NULL)
684 iounmap(adapter->ahw.pci_base0);
685 if (adapter->ahw.pci_base1 != NULL)
686 iounmap(adapter->ahw.pci_base1);
687 if (adapter->ahw.pci_base2 != NULL)
688 iounmap(adapter->ahw.pci_base2);
692 netxen_setup_pci_map(struct netxen_adapter *adapter)
694 void __iomem *db_ptr = NULL;
696 resource_size_t mem_base, db_base;
697 unsigned long mem_len, db_len = 0;
699 struct pci_dev *pdev = adapter->pdev;
700 int pci_func = adapter->ahw.pci_func;
701 struct netxen_hardware_context *ahw = &adapter->ahw;
706 * Set the CRB window to invalid. If any register in window 0 is
707 * accessed it should set the window to 0 and then reset it to 1.
709 adapter->ahw.crb_win = -1;
710 adapter->ahw.ocm_win = -1;
712 /* remap phys address */
713 mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */
714 mem_len = pci_resource_len(pdev, 0);
716 /* 128 Meg of memory */
717 if (mem_len == NETXEN_PCI_128MB_SIZE) {
719 ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE);
720 ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START,
721 SECOND_PAGE_GROUP_SIZE);
722 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START,
723 THIRD_PAGE_GROUP_SIZE);
724 if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL ||
725 ahw->pci_base2 == NULL) {
726 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
731 ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE;
733 } else if (mem_len == NETXEN_PCI_32MB_SIZE) {
735 ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE);
736 ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START -
737 SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE);
738 if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) {
739 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
744 } else if (mem_len == NETXEN_PCI_2MB_SIZE) {
746 ahw->pci_base0 = pci_ioremap_bar(pdev, 0);
747 if (ahw->pci_base0 == NULL) {
748 dev_err(&pdev->dev, "failed to map PCI bar 0\n");
751 ahw->pci_len0 = mem_len;
756 netxen_setup_hwops(adapter);
758 dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20));
760 if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) {
761 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
762 NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func)));
764 } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
765 adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter,
766 NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func)));
769 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
772 db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */
773 db_len = pci_resource_len(pdev, 4);
776 printk(KERN_ERR "%s: doorbell is disabled\n",
777 netxen_nic_driver_name);
782 db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES);
784 printk(KERN_ERR "%s: Failed to allocate doorbell map.",
785 netxen_nic_driver_name);
791 adapter->ahw.db_base = db_ptr;
792 adapter->ahw.db_len = db_len;
796 netxen_cleanup_pci_map(adapter);
801 netxen_check_options(struct netxen_adapter *adapter)
803 u32 fw_major, fw_minor, fw_build;
804 char brd_name[NETXEN_MAX_SHORT_NAME];
808 struct pci_dev *pdev = adapter->pdev;
810 adapter->driver_mismatch = 0;
812 ptr32 = (int *)&serial_num;
813 offset = NX_FW_SERIAL_NUM_OFFSET;
814 for (i = 0; i < 8; i++) {
815 if (netxen_rom_fast_read(adapter, offset, &val) == -1) {
816 dev_err(&pdev->dev, "error reading board info\n");
817 adapter->driver_mismatch = 1;
820 ptr32[i] = cpu_to_le32(val);
821 offset += sizeof(u32);
824 fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR);
825 fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR);
826 fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB);
828 adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build);
830 if (adapter->portnum == 0) {
831 get_brd_name_by_type(adapter->ahw.board_type, brd_name);
833 pr_info("%s: %s Board S/N %s Chip rev 0x%x\n",
834 module_name(THIS_MODULE),
835 brd_name, serial_num, adapter->ahw.revision_id);
838 if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) {
839 adapter->driver_mismatch = 1;
840 dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n",
841 fw_major, fw_minor, fw_build);
845 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
846 i = NXRD32(adapter, NETXEN_SRE_MISC);
847 adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0;
850 dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n",
851 fw_major, fw_minor, fw_build,
852 adapter->ahw.cut_through ? "cut-through" : "legacy");
854 if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222))
855 adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1);
857 if (adapter->ahw.port_type == NETXEN_NIC_XGBE) {
858 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G;
859 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G;
860 } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) {
861 adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G;
862 adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G;
865 adapter->msix_supported = 0;
866 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
867 adapter->msix_supported = !!use_msi_x;
868 adapter->rss_supported = !!use_msi_x;
871 netxen_rom_fast_read(adapter,
872 NX_FW_VERSION_OFFSET, (int *)&flashed_ver);
873 flashed_ver = NETXEN_DECODE_VERSION(flashed_ver);
875 if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) {
876 switch (adapter->ahw.board_type) {
877 case NETXEN_BRDTYPE_P2_SB31_10G:
878 case NETXEN_BRDTYPE_P2_SB31_10G_CX4:
879 adapter->msix_supported = !!use_msi_x;
880 adapter->rss_supported = !!use_msi_x;
888 adapter->num_txd = MAX_CMD_DESCRIPTORS;
890 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
891 adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS;
892 adapter->max_rds_rings = 3;
894 adapter->num_lro_rxd = 0;
895 adapter->max_rds_rings = 2;
900 netxen_start_firmware(struct netxen_adapter *adapter)
902 int val, err, first_boot;
903 struct pci_dev *pdev = adapter->pdev;
905 /* required for NX2031 dummy dma */
906 err = nx_set_dma_mask(adapter);
910 if (!netxen_can_start_firmware(adapter))
913 first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc));
915 err = netxen_check_hw_init(adapter, first_boot);
917 dev_err(&pdev->dev, "error in init HW init sequence\n");
921 netxen_request_firmware(adapter);
923 err = netxen_need_fw_reset(adapter);
927 goto pcie_strap_init;
929 if (first_boot != 0x55555555) {
930 NXWR32(adapter, CRB_CMDPEG_STATE, 0);
931 netxen_pinit_from_rom(adapter);
935 NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555);
936 NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0);
937 NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0);
939 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
940 netxen_set_port_mode(adapter);
942 err = netxen_load_firmware(adapter);
946 netxen_release_firmware(adapter);
948 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
950 /* Initialize multicast addr pool owners */
952 if (adapter->ahw.port_type == NETXEN_NIC_XGBE)
954 NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val);
958 err = netxen_init_dummy_dma(adapter);
963 * Tell the hardware our version number.
965 val = (_NETXEN_NIC_LINUX_MAJOR << 16)
966 | ((_NETXEN_NIC_LINUX_MINOR << 8))
967 | (_NETXEN_NIC_LINUX_SUBVERSION);
968 NXWR32(adapter, CRB_DRIVER_VERSION, val);
971 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
972 netxen_pcie_strap_init(adapter);
975 /* Handshake with the card before we register the devices. */
976 err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE);
978 netxen_free_dummy_dma(adapter);
982 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY);
984 nx_update_dma_mask(adapter);
986 netxen_check_options(adapter);
988 adapter->need_fw_reset = 0;
990 /* fall through and release firmware */
993 netxen_release_firmware(adapter);
998 netxen_nic_request_irq(struct netxen_adapter *adapter)
1000 irq_handler_t handler;
1001 struct nx_host_sds_ring *sds_ring;
1004 unsigned long flags = 0;
1005 struct net_device *netdev = adapter->netdev;
1006 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1008 if (adapter->flags & NETXEN_NIC_MSIX_ENABLED)
1009 handler = netxen_msix_intr;
1010 else if (adapter->flags & NETXEN_NIC_MSI_ENABLED)
1011 handler = netxen_msi_intr;
1013 flags |= IRQF_SHARED;
1014 handler = netxen_intr;
1016 adapter->irq = netdev->irq;
1018 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1019 sds_ring = &recv_ctx->sds_rings[ring];
1020 sprintf(sds_ring->name, "%s[%d]", netdev->name, ring);
1021 err = request_irq(sds_ring->irq, handler,
1022 flags, sds_ring->name, sds_ring);
1031 netxen_nic_free_irq(struct netxen_adapter *adapter)
1034 struct nx_host_sds_ring *sds_ring;
1036 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
1038 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
1039 sds_ring = &recv_ctx->sds_rings[ring];
1040 free_irq(sds_ring->irq, sds_ring);
1045 netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter)
1047 adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT;
1048 adapter->coal.normal.data.rx_time_us =
1049 NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US;
1050 adapter->coal.normal.data.rx_packets =
1051 NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS;
1052 adapter->coal.normal.data.tx_time_us =
1053 NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US;
1054 adapter->coal.normal.data.tx_packets =
1055 NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS;
1058 /* with rtnl_lock */
1060 __netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1064 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1067 err = adapter->init_port(adapter, adapter->physical_port);
1069 printk(KERN_ERR "%s: Failed to initialize port %d\n",
1070 netxen_nic_driver_name, adapter->portnum);
1073 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
1074 adapter->macaddr_set(adapter, adapter->mac_addr);
1076 adapter->set_multi(netdev);
1077 adapter->set_mtu(adapter, netdev->mtu);
1079 adapter->ahw.linkup = 0;
1081 if (adapter->max_sds_rings > 1)
1082 netxen_config_rss(adapter, 1);
1084 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1085 netxen_config_intr_coalesce(adapter);
1087 if (netdev->features & NETIF_F_LRO)
1088 netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED);
1090 netxen_napi_enable(adapter);
1092 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1093 netxen_linkevent_request(adapter, 1);
1095 netxen_nic_set_link_parameters(adapter);
1097 set_bit(__NX_DEV_UP, &adapter->state);
1101 /* Usage: During resume and firmware recovery module.*/
1104 netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev)
1109 if (netif_running(netdev))
1110 err = __netxen_nic_up(adapter, netdev);
1116 /* with rtnl_lock */
1118 __netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1120 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1123 if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state))
1127 spin_lock(&adapter->tx_clean_lock);
1128 netif_carrier_off(netdev);
1129 netif_tx_disable(netdev);
1131 if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION)
1132 netxen_linkevent_request(adapter, 0);
1134 if (adapter->stop_port)
1135 adapter->stop_port(adapter);
1137 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1138 netxen_p3_free_mac_list(adapter);
1140 adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE);
1142 netxen_napi_disable(adapter);
1144 netxen_release_tx_buffers(adapter);
1145 spin_unlock(&adapter->tx_clean_lock);
1148 /* Usage: During suspend and firmware recovery module */
1151 netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev)
1154 if (netif_running(netdev))
1155 __netxen_nic_down(adapter, netdev);
1161 netxen_nic_attach(struct netxen_adapter *adapter)
1163 struct net_device *netdev = adapter->netdev;
1164 struct pci_dev *pdev = adapter->pdev;
1166 struct nx_host_rds_ring *rds_ring;
1167 struct nx_host_tx_ring *tx_ring;
1169 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC)
1172 err = netxen_init_firmware(adapter);
1176 err = netxen_napi_add(adapter, netdev);
1180 err = netxen_alloc_sw_resources(adapter);
1182 printk(KERN_ERR "%s: Error in setting sw resources\n",
1187 err = netxen_alloc_hw_resources(adapter);
1189 printk(KERN_ERR "%s: Error in setting hw resources\n",
1191 goto err_out_free_sw;
1194 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1195 tx_ring = adapter->tx_ring;
1196 tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
1197 crb_cmd_producer[adapter->portnum]);
1198 tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter,
1199 crb_cmd_consumer[adapter->portnum]);
1201 tx_ring->producer = 0;
1202 tx_ring->sw_consumer = 0;
1204 netxen_nic_update_cmd_producer(adapter, tx_ring);
1205 netxen_nic_update_cmd_consumer(adapter, tx_ring);
1208 for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1209 rds_ring = &adapter->recv_ctx.rds_rings[ring];
1210 netxen_post_rx_buffers(adapter, ring, rds_ring);
1213 err = netxen_nic_request_irq(adapter);
1215 dev_err(&pdev->dev, "%s: failed to setup interrupt\n",
1217 goto err_out_free_rxbuf;
1220 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1221 netxen_nic_init_coalesce_defaults(adapter);
1223 netxen_create_sysfs_entries(adapter);
1225 adapter->is_up = NETXEN_ADAPTER_UP_MAGIC;
1229 netxen_release_rx_buffers(adapter);
1230 netxen_free_hw_resources(adapter);
1232 netxen_free_sw_resources(adapter);
1237 netxen_nic_detach(struct netxen_adapter *adapter)
1239 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
1242 netxen_remove_sysfs_entries(adapter);
1244 netxen_free_hw_resources(adapter);
1245 netxen_release_rx_buffers(adapter);
1246 netxen_nic_free_irq(adapter);
1247 netxen_napi_del(adapter);
1248 netxen_free_sw_resources(adapter);
1254 netxen_nic_reset_context(struct netxen_adapter *adapter)
1257 struct net_device *netdev = adapter->netdev;
1259 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
1262 if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) {
1264 netif_device_detach(netdev);
1266 if (netif_running(netdev))
1267 __netxen_nic_down(adapter, netdev);
1269 netxen_nic_detach(adapter);
1271 if (netif_running(netdev)) {
1272 err = netxen_nic_attach(adapter);
1274 err = __netxen_nic_up(adapter, netdev);
1280 netif_device_attach(netdev);
1284 clear_bit(__NX_RESETTING, &adapter->state);
1289 netxen_setup_netdev(struct netxen_adapter *adapter,
1290 struct net_device *netdev)
1293 struct pci_dev *pdev = adapter->pdev;
1295 adapter->mc_enabled = 0;
1296 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1297 adapter->max_mc_count = 38;
1299 adapter->max_mc_count = 16;
1301 netdev->netdev_ops = &netxen_netdev_ops;
1302 netdev->watchdog_timeo = 5*HZ;
1304 netxen_nic_change_mtu(netdev, netdev->mtu);
1306 SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops);
1308 netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO |
1311 if (NX_IS_REVISION_P3(adapter->ahw.revision_id))
1312 netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6;
1314 netdev->vlan_features |= netdev->hw_features;
1316 if (adapter->pci_using_dac) {
1317 netdev->features |= NETIF_F_HIGHDMA;
1318 netdev->vlan_features |= NETIF_F_HIGHDMA;
1321 if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX)
1322 netdev->hw_features |= NETIF_F_HW_VLAN_TX;
1324 if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO)
1325 netdev->hw_features |= NETIF_F_LRO;
1327 netdev->features |= netdev->hw_features;
1329 netdev->irq = adapter->msix_entries[0].vector;
1331 INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task);
1333 if (netxen_read_mac_addr(adapter))
1334 dev_warn(&pdev->dev, "failed to read mac addr\n");
1336 netif_carrier_off(netdev);
1338 err = register_netdev(netdev);
1340 dev_err(&pdev->dev, "failed to register net device\n");
1347 #ifdef CONFIG_PCIEAER
1348 static void netxen_mask_aer_correctable(struct netxen_adapter *adapter)
1350 struct pci_dev *pdev = adapter->pdev;
1351 struct pci_dev *root = pdev->bus->self;
1358 if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM &&
1359 adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP)
1362 if (root->pcie_type != PCI_EXP_TYPE_ROOT_PORT)
1365 aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR);
1369 pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff);
1373 static int __devinit
1374 netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
1376 struct net_device *netdev = NULL;
1377 struct netxen_adapter *adapter = NULL;
1379 int pci_func_id = PCI_FUNC(pdev->devfn);
1380 uint8_t revision_id;
1383 if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
1384 pr_warning("%s: chip revisions between 0x%x-0x%x "
1385 "will not be enabled.\n",
1386 module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1);
1390 if ((err = pci_enable_device(pdev)))
1393 if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
1395 goto err_out_disable_pdev;
1398 if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
1399 goto err_out_disable_pdev;
1401 if (NX_IS_REVISION_P3(pdev->revision))
1402 pci_enable_pcie_error_reporting(pdev);
1404 pci_set_master(pdev);
1406 netdev = alloc_etherdev(sizeof(struct netxen_adapter));
1408 dev_err(&pdev->dev, "failed to allocate net_device\n");
1410 goto err_out_free_res;
1413 SET_NETDEV_DEV(netdev, &pdev->dev);
1415 adapter = netdev_priv(netdev);
1416 adapter->netdev = netdev;
1417 adapter->pdev = pdev;
1418 adapter->ahw.pci_func = pci_func_id;
1420 revision_id = pdev->revision;
1421 adapter->ahw.revision_id = revision_id;
1423 rwlock_init(&adapter->ahw.crb_lock);
1424 spin_lock_init(&adapter->ahw.mem_lock);
1426 spin_lock_init(&adapter->tx_clean_lock);
1427 INIT_LIST_HEAD(&adapter->mac_list);
1428 INIT_LIST_HEAD(&adapter->vlan_ip_list);
1430 err = netxen_setup_pci_map(adapter);
1432 goto err_out_free_netdev;
1434 /* This will be reset for mezz cards */
1435 adapter->portnum = pci_func_id;
1437 err = netxen_nic_get_board_info(adapter);
1439 dev_err(&pdev->dev, "Error getting board config info.\n");
1440 goto err_out_iounmap;
1443 #ifdef CONFIG_PCIEAER
1444 netxen_mask_aer_correctable(adapter);
1447 /* Mezz cards have PCI function 0,2,3 enabled */
1448 switch (adapter->ahw.board_type) {
1449 case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ:
1450 case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ:
1451 if (pci_func_id >= 2)
1452 adapter->portnum = pci_func_id - 2;
1458 err = netxen_check_flash_fw_compatibility(adapter);
1460 goto err_out_iounmap;
1462 if (adapter->portnum == 0) {
1463 val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
1464 if (val != 0xffffffff && val != 0) {
1465 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
1466 adapter->need_fw_reset = 1;
1470 err = netxen_start_firmware(adapter);
1472 goto err_out_decr_ref;
1475 * See if the firmware gave us a virtual-physical port mapping.
1477 adapter->physical_port = adapter->portnum;
1478 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
1479 i = NXRD32(adapter, CRB_V2P(adapter->portnum));
1480 if (i != 0x55555555)
1481 adapter->physical_port = i;
1484 netxen_nic_clear_stats(adapter);
1486 netxen_setup_intr(adapter);
1488 err = netxen_setup_netdev(adapter, netdev);
1490 goto err_out_disable_msi;
1492 pci_set_drvdata(pdev, adapter);
1494 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1496 switch (adapter->ahw.port_type) {
1497 case NETXEN_NIC_GBE:
1498 dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n",
1499 adapter->netdev->name);
1501 case NETXEN_NIC_XGBE:
1502 dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n",
1503 adapter->netdev->name);
1507 netxen_create_diag_entries(adapter);
1511 err_out_disable_msi:
1512 netxen_teardown_intr(adapter);
1514 netxen_free_dummy_dma(adapter);
1517 nx_decr_dev_ref_cnt(adapter);
1520 netxen_cleanup_pci_map(adapter);
1522 err_out_free_netdev:
1523 free_netdev(netdev);
1526 pci_release_regions(pdev);
1528 err_out_disable_pdev:
1529 pci_set_drvdata(pdev, NULL);
1530 pci_disable_device(pdev);
1534 static void __devexit netxen_nic_remove(struct pci_dev *pdev)
1536 struct netxen_adapter *adapter;
1537 struct net_device *netdev;
1539 adapter = pci_get_drvdata(pdev);
1540 if (adapter == NULL)
1543 netdev = adapter->netdev;
1545 netxen_cancel_fw_work(adapter);
1547 unregister_netdev(netdev);
1549 cancel_work_sync(&adapter->tx_timeout_task);
1551 netxen_free_vlan_ip_list(adapter);
1552 netxen_nic_detach(adapter);
1554 nx_decr_dev_ref_cnt(adapter);
1556 if (adapter->portnum == 0)
1557 netxen_free_dummy_dma(adapter);
1559 clear_bit(__NX_RESETTING, &adapter->state);
1561 netxen_teardown_intr(adapter);
1563 netxen_remove_diag_entries(adapter);
1565 netxen_cleanup_pci_map(adapter);
1567 netxen_release_firmware(adapter);
1569 if (NX_IS_REVISION_P3(pdev->revision))
1570 pci_disable_pcie_error_reporting(pdev);
1572 pci_release_regions(pdev);
1573 pci_disable_device(pdev);
1574 pci_set_drvdata(pdev, NULL);
1576 free_netdev(netdev);
1579 static void netxen_nic_detach_func(struct netxen_adapter *adapter)
1581 struct net_device *netdev = adapter->netdev;
1583 netif_device_detach(netdev);
1585 netxen_cancel_fw_work(adapter);
1587 if (netif_running(netdev))
1588 netxen_nic_down(adapter, netdev);
1590 cancel_work_sync(&adapter->tx_timeout_task);
1592 netxen_nic_detach(adapter);
1594 if (adapter->portnum == 0)
1595 netxen_free_dummy_dma(adapter);
1597 nx_decr_dev_ref_cnt(adapter);
1599 clear_bit(__NX_RESETTING, &adapter->state);
1602 static int netxen_nic_attach_func(struct pci_dev *pdev)
1604 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1605 struct net_device *netdev = adapter->netdev;
1608 err = pci_enable_device(pdev);
1612 pci_set_power_state(pdev, PCI_D0);
1613 pci_set_master(pdev);
1614 pci_restore_state(pdev);
1616 adapter->ahw.crb_win = -1;
1617 adapter->ahw.ocm_win = -1;
1619 err = netxen_start_firmware(adapter);
1621 dev_err(&pdev->dev, "failed to start firmware\n");
1625 if (netif_running(netdev)) {
1626 err = netxen_nic_attach(adapter);
1630 err = netxen_nic_up(adapter, netdev);
1632 goto err_out_detach;
1634 netxen_restore_indev_addr(netdev, NETDEV_UP);
1637 netif_device_attach(netdev);
1638 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
1642 netxen_nic_detach(adapter);
1644 nx_decr_dev_ref_cnt(adapter);
1648 static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
1649 pci_channel_state_t state)
1651 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1653 if (state == pci_channel_io_perm_failure)
1654 return PCI_ERS_RESULT_DISCONNECT;
1656 if (nx_dev_request_aer(adapter))
1657 return PCI_ERS_RESULT_RECOVERED;
1659 netxen_nic_detach_func(adapter);
1661 pci_disable_device(pdev);
1663 return PCI_ERS_RESULT_NEED_RESET;
1666 static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
1670 err = netxen_nic_attach_func(pdev);
1672 return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
1675 static void netxen_io_resume(struct pci_dev *pdev)
1677 pci_cleanup_aer_uncorrect_error_status(pdev);
1680 static void netxen_nic_shutdown(struct pci_dev *pdev)
1682 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1684 netxen_nic_detach_func(adapter);
1686 if (pci_save_state(pdev))
1689 if (netxen_nic_wol_supported(adapter)) {
1690 pci_enable_wake(pdev, PCI_D3cold, 1);
1691 pci_enable_wake(pdev, PCI_D3hot, 1);
1694 pci_disable_device(pdev);
1699 netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
1701 struct netxen_adapter *adapter = pci_get_drvdata(pdev);
1704 netxen_nic_detach_func(adapter);
1706 retval = pci_save_state(pdev);
1710 if (netxen_nic_wol_supported(adapter)) {
1711 pci_enable_wake(pdev, PCI_D3cold, 1);
1712 pci_enable_wake(pdev, PCI_D3hot, 1);
1715 pci_disable_device(pdev);
1716 pci_set_power_state(pdev, pci_choose_state(pdev, state));
1722 netxen_nic_resume(struct pci_dev *pdev)
1724 return netxen_nic_attach_func(pdev);
1728 static int netxen_nic_open(struct net_device *netdev)
1730 struct netxen_adapter *adapter = netdev_priv(netdev);
1733 if (adapter->driver_mismatch)
1736 err = netxen_nic_attach(adapter);
1740 err = __netxen_nic_up(adapter, netdev);
1744 netif_start_queue(netdev);
1749 netxen_nic_detach(adapter);
1754 * netxen_nic_close - Disables a network interface entry point
1756 static int netxen_nic_close(struct net_device *netdev)
1758 struct netxen_adapter *adapter = netdev_priv(netdev);
1760 __netxen_nic_down(adapter, netdev);
1765 netxen_tso_check(struct net_device *netdev,
1766 struct nx_host_tx_ring *tx_ring,
1767 struct cmd_desc_type0 *first_desc,
1768 struct sk_buff *skb)
1770 u8 opcode = TX_ETHER_PKT;
1771 __be16 protocol = skb->protocol;
1772 u16 flags = 0, vid = 0;
1774 int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0;
1775 struct cmd_desc_type0 *hwdesc;
1776 struct vlan_ethhdr *vh;
1778 if (protocol == cpu_to_be16(ETH_P_8021Q)) {
1780 vh = (struct vlan_ethhdr *)skb->data;
1781 protocol = vh->h_vlan_encapsulated_proto;
1782 flags = FLAGS_VLAN_TAGGED;
1784 } else if (vlan_tx_tag_present(skb)) {
1786 flags = FLAGS_VLAN_OOB;
1787 vid = vlan_tx_tag_get(skb);
1788 netxen_set_tx_vlan_tci(first_desc, vid);
1792 if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) &&
1793 skb_shinfo(skb)->gso_size > 0) {
1795 hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb);
1797 first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size);
1798 first_desc->total_hdr_length = hdr_len;
1800 first_desc->total_hdr_length += VLAN_HLEN;
1801 first_desc->tcp_hdr_offset = VLAN_HLEN;
1802 first_desc->ip_hdr_offset = VLAN_HLEN;
1803 /* Only in case of TSO on vlan device */
1804 flags |= FLAGS_VLAN_TAGGED;
1807 opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ?
1808 TX_TCP_LSO6 : TX_TCP_LSO;
1811 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
1814 if (protocol == cpu_to_be16(ETH_P_IP)) {
1815 l4proto = ip_hdr(skb)->protocol;
1817 if (l4proto == IPPROTO_TCP)
1818 opcode = TX_TCP_PKT;
1819 else if(l4proto == IPPROTO_UDP)
1820 opcode = TX_UDP_PKT;
1821 } else if (protocol == cpu_to_be16(ETH_P_IPV6)) {
1822 l4proto = ipv6_hdr(skb)->nexthdr;
1824 if (l4proto == IPPROTO_TCP)
1825 opcode = TX_TCPV6_PKT;
1826 else if(l4proto == IPPROTO_UDP)
1827 opcode = TX_UDPV6_PKT;
1831 first_desc->tcp_hdr_offset += skb_transport_offset(skb);
1832 first_desc->ip_hdr_offset += skb_network_offset(skb);
1833 netxen_set_tx_flags_opcode(first_desc, flags, opcode);
1838 /* For LSO, we need to copy the MAC/IP/TCP headers into
1839 * the descriptor ring
1841 producer = tx_ring->producer;
1846 /* Create a TSO vlan header template for firmware */
1848 hwdesc = &tx_ring->desc_head[producer];
1849 tx_ring->cmd_buf_arr[producer].skb = NULL;
1851 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1852 hdr_len + VLAN_HLEN);
1854 vh = (struct vlan_ethhdr *)((char *)hwdesc + 2);
1855 skb_copy_from_linear_data(skb, vh, 12);
1856 vh->h_vlan_proto = htons(ETH_P_8021Q);
1857 vh->h_vlan_TCI = htons(vid);
1858 skb_copy_from_linear_data_offset(skb, 12,
1859 (char *)vh + 16, copy_len - 16);
1861 copied = copy_len - VLAN_HLEN;
1864 producer = get_next_index(producer, tx_ring->num_desc);
1867 while (copied < hdr_len) {
1869 copy_len = min((int)sizeof(struct cmd_desc_type0) - offset,
1870 (hdr_len - copied));
1872 hwdesc = &tx_ring->desc_head[producer];
1873 tx_ring->cmd_buf_arr[producer].skb = NULL;
1875 skb_copy_from_linear_data_offset(skb, copied,
1876 (char *)hwdesc + offset, copy_len);
1881 producer = get_next_index(producer, tx_ring->num_desc);
1884 tx_ring->producer = producer;
1889 netxen_map_tx_skb(struct pci_dev *pdev,
1890 struct sk_buff *skb, struct netxen_cmd_buffer *pbuf)
1892 struct netxen_skb_frag *nf;
1893 struct skb_frag_struct *frag;
1897 nr_frags = skb_shinfo(skb)->nr_frags;
1898 nf = &pbuf->frag_array[0];
1900 map = pci_map_single(pdev, skb->data,
1901 skb_headlen(skb), PCI_DMA_TODEVICE);
1902 if (pci_dma_mapping_error(pdev, map))
1906 nf->length = skb_headlen(skb);
1908 for (i = 0; i < nr_frags; i++) {
1909 frag = &skb_shinfo(skb)->frags[i];
1910 nf = &pbuf->frag_array[i+1];
1912 map = skb_frag_dma_map(&pdev->dev, frag, 0, skb_frag_size(frag),
1914 if (dma_mapping_error(&pdev->dev, map))
1918 nf->length = skb_frag_size(frag);
1925 nf = &pbuf->frag_array[i+1];
1926 pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE);
1930 nf = &pbuf->frag_array[0];
1931 pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE);
1939 netxen_clear_cmddesc(u64 *desc)
1946 netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
1948 struct netxen_adapter *adapter = netdev_priv(netdev);
1949 struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
1950 struct netxen_cmd_buffer *pbuf;
1951 struct netxen_skb_frag *buffrag;
1952 struct cmd_desc_type0 *hwdesc, *first_desc;
1953 struct pci_dev *pdev;
1956 struct skb_frag_struct *frag;
1959 int frag_count, no_of_desc;
1960 u32 num_txd = tx_ring->num_desc;
1962 frag_count = skb_shinfo(skb)->nr_frags + 1;
1964 /* 14 frags supported for normal packet and
1965 * 32 frags supported for TSO packet
1967 if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) {
1969 for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) {
1970 frag = &skb_shinfo(skb)->frags[i];
1971 delta += skb_frag_size(frag);
1974 if (!__pskb_pull_tail(skb, delta))
1977 frag_count = 1 + skb_shinfo(skb)->nr_frags;
1979 /* 4 fragments per cmd des */
1980 no_of_desc = (frag_count + 3) >> 2;
1982 if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) {
1983 netif_stop_queue(netdev);
1985 if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH)
1986 netif_start_queue(netdev);
1988 return NETDEV_TX_BUSY;
1991 producer = tx_ring->producer;
1992 pbuf = &tx_ring->cmd_buf_arr[producer];
1994 pdev = adapter->pdev;
1996 if (netxen_map_tx_skb(pdev, skb, pbuf))
2000 pbuf->frag_count = frag_count;
2002 first_desc = hwdesc = &tx_ring->desc_head[producer];
2003 netxen_clear_cmddesc((u64 *)hwdesc);
2005 netxen_set_tx_frags_len(first_desc, frag_count, skb->len);
2006 netxen_set_tx_port(first_desc, adapter->portnum);
2008 for (i = 0; i < frag_count; i++) {
2012 if ((k == 0) && (i > 0)) {
2013 /* move to next desc.*/
2014 producer = get_next_index(producer, num_txd);
2015 hwdesc = &tx_ring->desc_head[producer];
2016 netxen_clear_cmddesc((u64 *)hwdesc);
2017 tx_ring->cmd_buf_arr[producer].skb = NULL;
2020 buffrag = &pbuf->frag_array[i];
2022 hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length);
2025 hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma);
2028 hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma);
2031 hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma);
2034 hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma);
2039 tx_ring->producer = get_next_index(producer, num_txd);
2041 netxen_tso_check(netdev, tx_ring, first_desc, skb);
2043 adapter->stats.txbytes += skb->len;
2044 adapter->stats.xmitcalled++;
2046 netxen_nic_update_cmd_producer(adapter, tx_ring);
2048 return NETDEV_TX_OK;
2051 adapter->stats.txdropped++;
2052 dev_kfree_skb_any(skb);
2053 return NETDEV_TX_OK;
2056 static int netxen_nic_check_temp(struct netxen_adapter *adapter)
2058 struct net_device *netdev = adapter->netdev;
2059 uint32_t temp, temp_state, temp_val;
2062 temp = NXRD32(adapter, CRB_TEMP_STATE);
2064 temp_state = nx_get_temp_state(temp);
2065 temp_val = nx_get_temp_val(temp);
2067 if (temp_state == NX_TEMP_PANIC) {
2069 "%s: Device temperature %d degrees C exceeds"
2070 " maximum allowed. Hardware has been shut down.\n",
2071 netdev->name, temp_val);
2073 } else if (temp_state == NX_TEMP_WARN) {
2074 if (adapter->temp == NX_TEMP_NORMAL) {
2076 "%s: Device temperature %d degrees C "
2077 "exceeds operating range."
2078 " Immediate action needed.\n",
2079 netdev->name, temp_val);
2082 if (adapter->temp == NX_TEMP_WARN) {
2084 "%s: Device temperature is now %d degrees C"
2085 " in normal range.\n", netdev->name,
2089 adapter->temp = temp_state;
2093 void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup)
2095 struct net_device *netdev = adapter->netdev;
2097 if (adapter->ahw.linkup && !linkup) {
2098 printk(KERN_INFO "%s: %s NIC Link is down\n",
2099 netxen_nic_driver_name, netdev->name);
2100 adapter->ahw.linkup = 0;
2101 if (netif_running(netdev)) {
2102 netif_carrier_off(netdev);
2103 netif_stop_queue(netdev);
2105 adapter->link_changed = !adapter->has_link_events;
2106 } else if (!adapter->ahw.linkup && linkup) {
2107 printk(KERN_INFO "%s: %s NIC Link is up\n",
2108 netxen_nic_driver_name, netdev->name);
2109 adapter->ahw.linkup = 1;
2110 if (netif_running(netdev)) {
2111 netif_carrier_on(netdev);
2112 netif_wake_queue(netdev);
2114 adapter->link_changed = !adapter->has_link_events;
2118 static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter)
2120 u32 val, port, linkup;
2122 port = adapter->physical_port;
2124 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2125 val = NXRD32(adapter, CRB_XG_STATE_P3);
2126 val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val);
2127 linkup = (val == XG_LINK_UP_P3);
2129 val = NXRD32(adapter, CRB_XG_STATE);
2130 val = (val >> port*8) & 0xff;
2131 linkup = (val == XG_LINK_UP);
2134 netxen_advert_link_change(adapter, linkup);
2137 static void netxen_tx_timeout(struct net_device *netdev)
2139 struct netxen_adapter *adapter = netdev_priv(netdev);
2141 if (test_bit(__NX_RESETTING, &adapter->state))
2144 dev_err(&netdev->dev, "transmit timeout, resetting.\n");
2145 schedule_work(&adapter->tx_timeout_task);
2148 static void netxen_tx_timeout_task(struct work_struct *work)
2150 struct netxen_adapter *adapter =
2151 container_of(work, struct netxen_adapter, tx_timeout_task);
2153 if (!netif_running(adapter->netdev))
2156 if (test_and_set_bit(__NX_RESETTING, &adapter->state))
2159 if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS)
2163 if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
2164 /* try to scrub interrupt */
2165 netxen_napi_disable(adapter);
2167 netxen_napi_enable(adapter);
2169 netif_wake_queue(adapter->netdev);
2171 clear_bit(__NX_RESETTING, &adapter->state);
2173 clear_bit(__NX_RESETTING, &adapter->state);
2174 if (netxen_nic_reset_context(adapter)) {
2179 adapter->netdev->trans_start = jiffies;
2184 adapter->need_fw_reset = 1;
2185 clear_bit(__NX_RESETTING, &adapter->state);
2188 static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev,
2189 struct rtnl_link_stats64 *stats)
2191 struct netxen_adapter *adapter = netdev_priv(netdev);
2193 stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts;
2194 stats->tx_packets = adapter->stats.xmitfinished;
2195 stats->rx_bytes = adapter->stats.rxbytes;
2196 stats->tx_bytes = adapter->stats.txbytes;
2197 stats->rx_dropped = adapter->stats.rxdropped;
2198 stats->tx_dropped = adapter->stats.txdropped;
2203 static irqreturn_t netxen_intr(int irq, void *data)
2205 struct nx_host_sds_ring *sds_ring = data;
2206 struct netxen_adapter *adapter = sds_ring->adapter;
2209 status = readl(adapter->isr_int_vec);
2211 if (!(status & adapter->int_vec_bit))
2214 if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) {
2215 /* check interrupt state machine, to be sure */
2216 status = readl(adapter->crb_int_state_reg);
2217 if (!ISR_LEGACY_INT_TRIGGERED(status))
2221 unsigned long our_int = 0;
2223 our_int = readl(adapter->crb_int_state_reg);
2225 /* not our interrupt */
2226 if (!test_and_clear_bit((7 + adapter->portnum), &our_int))
2229 /* claim interrupt */
2230 writel((our_int & 0xffffffff), adapter->crb_int_state_reg);
2232 /* clear interrupt */
2233 netxen_nic_disable_int(sds_ring);
2236 writel(0xffffffff, adapter->tgt_status_reg);
2237 /* read twice to ensure write is flushed */
2238 readl(adapter->isr_int_vec);
2239 readl(adapter->isr_int_vec);
2241 napi_schedule(&sds_ring->napi);
2246 static irqreturn_t netxen_msi_intr(int irq, void *data)
2248 struct nx_host_sds_ring *sds_ring = data;
2249 struct netxen_adapter *adapter = sds_ring->adapter;
2251 /* clear interrupt */
2252 writel(0xffffffff, adapter->tgt_status_reg);
2254 napi_schedule(&sds_ring->napi);
2258 static irqreturn_t netxen_msix_intr(int irq, void *data)
2260 struct nx_host_sds_ring *sds_ring = data;
2262 napi_schedule(&sds_ring->napi);
2266 static int netxen_nic_poll(struct napi_struct *napi, int budget)
2268 struct nx_host_sds_ring *sds_ring =
2269 container_of(napi, struct nx_host_sds_ring, napi);
2271 struct netxen_adapter *adapter = sds_ring->adapter;
2276 tx_complete = netxen_process_cmd_ring(adapter);
2278 work_done = netxen_process_rcv_ring(sds_ring, budget);
2280 if ((work_done < budget) && tx_complete) {
2281 napi_complete(&sds_ring->napi);
2282 if (test_bit(__NX_DEV_UP, &adapter->state))
2283 netxen_nic_enable_int(sds_ring);
2289 #ifdef CONFIG_NET_POLL_CONTROLLER
2290 static void netxen_nic_poll_controller(struct net_device *netdev)
2293 struct nx_host_sds_ring *sds_ring;
2294 struct netxen_adapter *adapter = netdev_priv(netdev);
2295 struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
2297 disable_irq(adapter->irq);
2298 for (ring = 0; ring < adapter->max_sds_rings; ring++) {
2299 sds_ring = &recv_ctx->sds_rings[ring];
2300 netxen_intr(adapter->irq, sds_ring);
2302 enable_irq(adapter->irq);
2307 nx_incr_dev_ref_cnt(struct netxen_adapter *adapter)
2310 if (netxen_api_lock(adapter))
2313 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2315 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2317 netxen_api_unlock(adapter);
2322 nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
2325 if (netxen_api_lock(adapter))
2328 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2329 WARN_ON(count == 0);
2331 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count);
2334 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD);
2336 netxen_api_unlock(adapter);
2341 nx_dev_request_aer(struct netxen_adapter *adapter)
2346 if (netxen_api_lock(adapter))
2349 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2351 if (state == NX_DEV_NEED_AER)
2353 else if (state == NX_DEV_READY) {
2354 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
2358 netxen_api_unlock(adapter);
2363 nx_dev_request_reset(struct netxen_adapter *adapter)
2368 if (netxen_api_lock(adapter))
2371 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2373 if (state == NX_DEV_NEED_RESET)
2375 else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
2376 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
2380 netxen_api_unlock(adapter);
2386 netxen_can_start_firmware(struct netxen_adapter *adapter)
2391 if (netxen_api_lock(adapter))
2394 count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
2396 if ((count < 0) || (count >= NX_MAX_PCI_FUNC))
2401 NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING);
2404 NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count);
2406 netxen_api_unlock(adapter);
2412 netxen_schedule_work(struct netxen_adapter *adapter,
2413 work_func_t func, int delay)
2415 INIT_DELAYED_WORK(&adapter->fw_work, func);
2416 schedule_delayed_work(&adapter->fw_work, delay);
2420 netxen_cancel_fw_work(struct netxen_adapter *adapter)
2422 while (test_and_set_bit(__NX_RESETTING, &adapter->state))
2425 cancel_delayed_work_sync(&adapter->fw_work);
2429 netxen_attach_work(struct work_struct *work)
2431 struct netxen_adapter *adapter = container_of(work,
2432 struct netxen_adapter, fw_work.work);
2433 struct net_device *netdev = adapter->netdev;
2436 if (netif_running(netdev)) {
2437 err = netxen_nic_attach(adapter);
2441 err = netxen_nic_up(adapter, netdev);
2443 netxen_nic_detach(adapter);
2447 netxen_restore_indev_addr(netdev, NETDEV_UP);
2450 netif_device_attach(netdev);
2453 adapter->fw_fail_cnt = 0;
2454 clear_bit(__NX_RESETTING, &adapter->state);
2455 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2459 netxen_fwinit_work(struct work_struct *work)
2461 struct netxen_adapter *adapter = container_of(work,
2462 struct netxen_adapter, fw_work.work);
2465 dev_state = NXRD32(adapter, NX_CRB_DEV_STATE);
2467 switch (dev_state) {
2470 if (!netxen_start_firmware(adapter)) {
2471 netxen_schedule_work(adapter, netxen_attach_work, 0);
2476 case NX_DEV_NEED_RESET:
2477 case NX_DEV_INITALIZING:
2478 if (++adapter->fw_wait_cnt < FW_POLL_THRESH) {
2479 netxen_schedule_work(adapter,
2480 netxen_fwinit_work, 2 * FW_POLL_DELAY);
2486 nx_incr_dev_ref_cnt(adapter);
2490 clear_bit(__NX_RESETTING, &adapter->state);
2494 netxen_detach_work(struct work_struct *work)
2496 struct netxen_adapter *adapter = container_of(work,
2497 struct netxen_adapter, fw_work.work);
2498 struct net_device *netdev = adapter->netdev;
2502 netif_device_detach(netdev);
2504 netxen_nic_down(adapter, netdev);
2507 netxen_nic_detach(adapter);
2510 status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1);
2512 if (status & NX_RCODE_FATAL_ERROR)
2515 if (adapter->temp == NX_TEMP_PANIC)
2518 ref_cnt = nx_decr_dev_ref_cnt(adapter);
2520 if (ref_cnt == -EIO)
2523 delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY);
2525 adapter->fw_wait_cnt = 0;
2526 netxen_schedule_work(adapter, netxen_fwinit_work, delay);
2531 clear_bit(__NX_RESETTING, &adapter->state);
2535 netxen_check_health(struct netxen_adapter *adapter)
2537 u32 state, heartbit;
2538 struct net_device *netdev = adapter->netdev;
2540 state = NXRD32(adapter, NX_CRB_DEV_STATE);
2541 if (state == NX_DEV_NEED_AER)
2544 if (netxen_nic_check_temp(adapter))
2547 if (adapter->need_fw_reset) {
2548 if (nx_dev_request_reset(adapter))
2553 /* NX_DEV_NEED_RESET, this state can be marked in two cases
2554 * 1. Tx timeout 2. Fw hang
2555 * Send request to destroy context in case of tx timeout only
2556 * and doesn't required in case of Fw hang
2558 if (state == NX_DEV_NEED_RESET) {
2559 adapter->need_fw_reset = 1;
2560 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2564 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2567 heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER);
2568 if (heartbit != adapter->heartbit) {
2569 adapter->heartbit = heartbit;
2570 adapter->fw_fail_cnt = 0;
2571 if (adapter->need_fw_reset)
2576 if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
2579 if (nx_dev_request_reset(adapter))
2582 clear_bit(__NX_FW_ATTACHED, &adapter->state);
2584 dev_info(&netdev->dev, "firmware hang detected\n");
2587 if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) &&
2588 !test_and_set_bit(__NX_RESETTING, &adapter->state))
2589 netxen_schedule_work(adapter, netxen_detach_work, 0);
2594 netxen_fw_poll_work(struct work_struct *work)
2596 struct netxen_adapter *adapter = container_of(work,
2597 struct netxen_adapter, fw_work.work);
2599 if (test_bit(__NX_RESETTING, &adapter->state))
2602 if (test_bit(__NX_DEV_UP, &adapter->state)) {
2603 if (!adapter->has_link_events) {
2605 netxen_nic_handle_phy_intr(adapter);
2607 if (adapter->link_changed)
2608 netxen_nic_set_link_parameters(adapter);
2612 if (netxen_check_health(adapter))
2616 netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY);
2620 netxen_store_bridged_mode(struct device *dev,
2621 struct device_attribute *attr, const char *buf, size_t len)
2623 struct net_device *net = to_net_dev(dev);
2624 struct netxen_adapter *adapter = netdev_priv(net);
2628 if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG))
2631 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
2634 if (strict_strtoul(buf, 2, &new))
2637 if (!netxen_config_bridged_mode(adapter, !!new))
2645 netxen_show_bridged_mode(struct device *dev,
2646 struct device_attribute *attr, char *buf)
2648 struct net_device *net = to_net_dev(dev);
2649 struct netxen_adapter *adapter;
2650 int bridged_mode = 0;
2652 adapter = netdev_priv(net);
2654 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2655 bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED);
2657 return sprintf(buf, "%d\n", bridged_mode);
2660 static struct device_attribute dev_attr_bridged_mode = {
2661 .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)},
2662 .show = netxen_show_bridged_mode,
2663 .store = netxen_store_bridged_mode,
2667 netxen_store_diag_mode(struct device *dev,
2668 struct device_attribute *attr, const char *buf, size_t len)
2670 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2673 if (strict_strtoul(buf, 2, &new))
2676 if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2677 adapter->flags ^= NETXEN_NIC_DIAG_ENABLED;
2683 netxen_show_diag_mode(struct device *dev,
2684 struct device_attribute *attr, char *buf)
2686 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2688 return sprintf(buf, "%d\n",
2689 !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED));
2692 static struct device_attribute dev_attr_diag_mode = {
2693 .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)},
2694 .show = netxen_show_diag_mode,
2695 .store = netxen_store_diag_mode,
2699 netxen_sysfs_validate_crb(struct netxen_adapter *adapter,
2700 loff_t offset, size_t size)
2702 size_t crb_size = 4;
2704 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2707 if (offset < NETXEN_PCI_CRBSPACE) {
2708 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2711 if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2712 NETXEN_PCI_CAMQM_2M_END))
2718 if ((size != crb_size) || (offset & (crb_size-1)))
2725 netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj,
2726 struct bin_attribute *attr,
2727 char *buf, loff_t offset, size_t size)
2729 struct device *dev = container_of(kobj, struct device, kobj);
2730 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2735 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2739 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2740 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2741 NETXEN_PCI_CAMQM_2M_END)) {
2742 netxen_pci_camqm_read_2M(adapter, offset, &qmdata);
2743 memcpy(buf, &qmdata, size);
2745 data = NXRD32(adapter, offset);
2746 memcpy(buf, &data, size);
2753 netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj,
2754 struct bin_attribute *attr,
2755 char *buf, loff_t offset, size_t size)
2757 struct device *dev = container_of(kobj, struct device, kobj);
2758 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2763 ret = netxen_sysfs_validate_crb(adapter, offset, size);
2767 if (NX_IS_REVISION_P3(adapter->ahw.revision_id) &&
2768 ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM,
2769 NETXEN_PCI_CAMQM_2M_END)) {
2770 memcpy(&qmdata, buf, size);
2771 netxen_pci_camqm_write_2M(adapter, offset, qmdata);
2773 memcpy(&data, buf, size);
2774 NXWR32(adapter, offset, data);
2781 netxen_sysfs_validate_mem(struct netxen_adapter *adapter,
2782 loff_t offset, size_t size)
2784 if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED))
2787 if ((size != 8) || (offset & 0x7))
2794 netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj,
2795 struct bin_attribute *attr,
2796 char *buf, loff_t offset, size_t size)
2798 struct device *dev = container_of(kobj, struct device, kobj);
2799 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2803 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2807 if (adapter->pci_mem_read(adapter, offset, &data))
2810 memcpy(buf, &data, size);
2815 static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj,
2816 struct bin_attribute *attr, char *buf,
2817 loff_t offset, size_t size)
2819 struct device *dev = container_of(kobj, struct device, kobj);
2820 struct netxen_adapter *adapter = dev_get_drvdata(dev);
2824 ret = netxen_sysfs_validate_mem(adapter, offset, size);
2828 memcpy(&data, buf, size);
2830 if (adapter->pci_mem_write(adapter, offset, data))
2837 static struct bin_attribute bin_attr_crb = {
2838 .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)},
2840 .read = netxen_sysfs_read_crb,
2841 .write = netxen_sysfs_write_crb,
2844 static struct bin_attribute bin_attr_mem = {
2845 .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)},
2847 .read = netxen_sysfs_read_mem,
2848 .write = netxen_sysfs_write_mem,
2853 netxen_create_sysfs_entries(struct netxen_adapter *adapter)
2855 struct net_device *netdev = adapter->netdev;
2856 struct device *dev = &netdev->dev;
2858 if (adapter->capabilities & NX_FW_CAPABILITY_BDG) {
2859 /* bridged_mode control */
2860 if (device_create_file(dev, &dev_attr_bridged_mode)) {
2861 dev_warn(&netdev->dev,
2862 "failed to create bridged_mode sysfs entry\n");
2868 netxen_remove_sysfs_entries(struct netxen_adapter *adapter)
2870 struct net_device *netdev = adapter->netdev;
2871 struct device *dev = &netdev->dev;
2873 if (adapter->capabilities & NX_FW_CAPABILITY_BDG)
2874 device_remove_file(dev, &dev_attr_bridged_mode);
2878 netxen_create_diag_entries(struct netxen_adapter *adapter)
2880 struct pci_dev *pdev = adapter->pdev;
2884 if (device_create_file(dev, &dev_attr_diag_mode))
2885 dev_info(dev, "failed to create diag_mode sysfs entry\n");
2886 if (device_create_bin_file(dev, &bin_attr_crb))
2887 dev_info(dev, "failed to create crb sysfs entry\n");
2888 if (device_create_bin_file(dev, &bin_attr_mem))
2889 dev_info(dev, "failed to create mem sysfs entry\n");
2894 netxen_remove_diag_entries(struct netxen_adapter *adapter)
2896 struct pci_dev *pdev = adapter->pdev;
2897 struct device *dev = &pdev->dev;
2899 device_remove_file(dev, &dev_attr_diag_mode);
2900 device_remove_bin_file(dev, &bin_attr_crb);
2901 device_remove_bin_file(dev, &bin_attr_mem);
2906 #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops)
2909 netxen_destip_supported(struct netxen_adapter *adapter)
2911 if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
2914 if (adapter->ahw.cut_through)
2921 netxen_free_vlan_ip_list(struct netxen_adapter *adapter)
2923 struct nx_vlan_ip_list *cur;
2924 struct list_head *head = &adapter->vlan_ip_list;
2926 while (!list_empty(head)) {
2927 cur = list_entry(head->next, struct nx_vlan_ip_list, list);
2928 netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN);
2929 list_del(&cur->list);
2935 netxen_list_config_vlan_ip(struct netxen_adapter *adapter,
2936 struct in_ifaddr *ifa, unsigned long event)
2938 struct net_device *dev;
2939 struct nx_vlan_ip_list *cur, *tmp_cur;
2940 struct list_head *head;
2942 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
2947 if (!is_vlan_dev(dev))
2952 list_for_each(head, &adapter->vlan_ip_list) {
2953 cur = list_entry(head, struct nx_vlan_ip_list, list);
2955 if (cur->ip_addr == ifa->ifa_address)
2959 cur = kzalloc(sizeof(struct nx_vlan_ip_list), GFP_ATOMIC);
2961 printk(KERN_ERR "%s: failed to add vlan ip to list\n",
2962 adapter->netdev->name);
2966 cur->ip_addr = ifa->ifa_address;
2967 list_add_tail(&cur->list, &adapter->vlan_ip_list);
2970 list_for_each_entry_safe(cur, tmp_cur,
2971 &adapter->vlan_ip_list, list) {
2972 if (cur->ip_addr == ifa->ifa_address) {
2973 list_del(&cur->list);
2981 netxen_config_indev_addr(struct netxen_adapter *adapter,
2982 struct net_device *dev, unsigned long event)
2984 struct in_device *indev;
2986 if (!netxen_destip_supported(adapter))
2989 indev = in_dev_get(dev);
2996 netxen_config_ipaddr(adapter,
2997 ifa->ifa_address, NX_IP_UP);
2998 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_UP);
3001 netxen_config_ipaddr(adapter,
3002 ifa->ifa_address, NX_IP_DOWN);
3003 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_DOWN);
3008 } endfor_ifa(indev);
3014 netxen_restore_indev_addr(struct net_device *netdev, unsigned long event)
3017 struct netxen_adapter *adapter = netdev_priv(netdev);
3018 struct nx_vlan_ip_list *pos, *tmp_pos;
3019 unsigned long ip_event;
3021 ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN;
3022 netxen_config_indev_addr(adapter, netdev, event);
3024 list_for_each_entry_safe(pos, tmp_pos, &adapter->vlan_ip_list, list) {
3025 netxen_config_ipaddr(adapter, pos->ip_addr, ip_event);
3029 static int netxen_netdev_event(struct notifier_block *this,
3030 unsigned long event, void *ptr)
3032 struct netxen_adapter *adapter;
3033 struct net_device *dev = (struct net_device *)ptr;
3034 struct net_device *orig_dev = dev;
3040 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3041 dev = vlan_dev_real_dev(dev);
3045 if (!is_netxen_netdev(dev))
3048 adapter = netdev_priv(dev);
3053 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3056 netxen_config_indev_addr(adapter, orig_dev, event);
3062 netxen_inetaddr_event(struct notifier_block *this,
3063 unsigned long event, void *ptr)
3065 struct netxen_adapter *adapter;
3066 struct net_device *dev;
3068 struct in_ifaddr *ifa = (struct in_ifaddr *)ptr;
3070 dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL;
3076 if (dev->priv_flags & IFF_802_1Q_VLAN) {
3077 dev = vlan_dev_real_dev(dev);
3081 if (!is_netxen_netdev(dev))
3084 adapter = netdev_priv(dev);
3086 if (!adapter || !netxen_destip_supported(adapter))
3089 if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC)
3094 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP);
3095 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_UP);
3098 netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN);
3099 netxen_list_config_vlan_ip(adapter, ifa, NX_IP_DOWN);
3109 static struct notifier_block netxen_netdev_cb = {
3110 .notifier_call = netxen_netdev_event,
3113 static struct notifier_block netxen_inetaddr_cb = {
3114 .notifier_call = netxen_inetaddr_event,
3118 netxen_restore_indev_addr(struct net_device *dev, unsigned long event)
3121 netxen_free_vlan_ip_list(struct netxen_adapter *adapter)
3125 static struct pci_error_handlers netxen_err_handler = {
3126 .error_detected = netxen_io_error_detected,
3127 .slot_reset = netxen_io_slot_reset,
3128 .resume = netxen_io_resume,
3131 static struct pci_driver netxen_driver = {
3132 .name = netxen_nic_driver_name,
3133 .id_table = netxen_pci_tbl,
3134 .probe = netxen_nic_probe,
3135 .remove = __devexit_p(netxen_nic_remove),
3137 .suspend = netxen_nic_suspend,
3138 .resume = netxen_nic_resume,
3140 .shutdown = netxen_nic_shutdown,
3141 .err_handler = &netxen_err_handler
3144 static int __init netxen_init_module(void)
3146 printk(KERN_INFO "%s\n", netxen_nic_driver_string);
3149 register_netdevice_notifier(&netxen_netdev_cb);
3150 register_inetaddr_notifier(&netxen_inetaddr_cb);
3152 return pci_register_driver(&netxen_driver);
3155 module_init(netxen_init_module);
3157 static void __exit netxen_exit_module(void)
3159 pci_unregister_driver(&netxen_driver);
3162 unregister_inetaddr_notifier(&netxen_inetaddr_cb);
3163 unregister_netdevice_notifier(&netxen_netdev_cb);
3167 module_exit(netxen_exit_module);