| /* |
| * Copyright (C) 2003 - 2009 NetXen, Inc. |
| * Copyright (C) 2009 - QLogic Corporation. |
| * All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
| * MA 02111-1307, USA. |
| * |
| * The full GNU General Public License is included in this distribution |
| * in the file called LICENSE. |
| * |
| */ |
| |
| #include <linux/vmalloc.h> |
| #include <linux/interrupt.h> |
| #include "netxen_nic_hw.h" |
| |
| #include "netxen_nic.h" |
| |
| #include <linux/dma-mapping.h> |
| #include <linux/if_vlan.h> |
| #include <net/ip.h> |
| #include <linux/ipv6.h> |
| #include <linux/inetdevice.h> |
| |
| MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver"); |
| MODULE_LICENSE("GPL"); |
| MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID); |
| |
| char netxen_nic_driver_name[] = "netxen_nic"; |
| static char netxen_nic_driver_string[] = "NetXen Network Driver version " |
| NETXEN_NIC_LINUX_VERSIONID; |
| |
| static int port_mode = NETXEN_PORT_MODE_AUTO_NEG; |
| |
| /* Default to restricted 1G auto-neg mode */ |
| static int wol_port_mode = 5; |
| |
| static int use_msi = 1; |
| |
| static int use_msi_x = 1; |
| |
| /* Local functions to NetXen NIC driver */ |
| static int __devinit netxen_nic_probe(struct pci_dev *pdev, |
| const struct pci_device_id *ent); |
| static void __devexit netxen_nic_remove(struct pci_dev *pdev); |
| static int netxen_nic_open(struct net_device *netdev); |
| static int netxen_nic_close(struct net_device *netdev); |
| static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *, |
| struct net_device *); |
| static void netxen_tx_timeout(struct net_device *netdev); |
| static void netxen_tx_timeout_task(struct work_struct *work); |
| static void netxen_fw_poll_work(struct work_struct *work); |
| static void netxen_schedule_work(struct netxen_adapter *adapter, |
| work_func_t func, int delay); |
| static void netxen_cancel_fw_work(struct netxen_adapter *adapter); |
| static int netxen_nic_poll(struct napi_struct *napi, int budget); |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| static void netxen_nic_poll_controller(struct net_device *netdev); |
| #endif |
| |
| static void netxen_create_sysfs_entries(struct netxen_adapter *adapter); |
| static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter); |
| static void netxen_create_diag_entries(struct netxen_adapter *adapter); |
| static void netxen_remove_diag_entries(struct netxen_adapter *adapter); |
| |
| static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter); |
| static int netxen_can_start_firmware(struct netxen_adapter *adapter); |
| |
| static irqreturn_t netxen_intr(int irq, void *data); |
| static irqreturn_t netxen_msi_intr(int irq, void *data); |
| static irqreturn_t netxen_msix_intr(int irq, void *data); |
| |
| static void netxen_config_indev_addr(struct net_device *dev, unsigned long); |
| |
| /* PCI Device ID Table */ |
| #define ENTRY(device) \ |
| {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \ |
| .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0} |
| |
| static struct pci_device_id netxen_pci_tbl[] __devinitdata = { |
| ENTRY(PCI_DEVICE_ID_NX2031_10GXSR), |
| ENTRY(PCI_DEVICE_ID_NX2031_10GCX4), |
| ENTRY(PCI_DEVICE_ID_NX2031_4GCU), |
| ENTRY(PCI_DEVICE_ID_NX2031_IMEZ), |
| ENTRY(PCI_DEVICE_ID_NX2031_HMEZ), |
| ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT), |
| ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2), |
| ENTRY(PCI_DEVICE_ID_NX3031), |
| {0,} |
| }; |
| |
| MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); |
| |
| static uint32_t crb_cmd_producer[4] = { |
| CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1, |
| CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3 |
| }; |
| |
| void |
| netxen_nic_update_cmd_producer(struct netxen_adapter *adapter, |
| struct nx_host_tx_ring *tx_ring) |
| { |
| NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer); |
| |
| if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) { |
| netif_stop_queue(adapter->netdev); |
| smp_mb(); |
| } |
| } |
| |
| static uint32_t crb_cmd_consumer[4] = { |
| CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1, |
| CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3 |
| }; |
| |
| static inline void |
| netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter, |
| struct nx_host_tx_ring *tx_ring) |
| { |
| NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer); |
| } |
| |
| static uint32_t msi_tgt_status[8] = { |
| ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, |
| ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3, |
| ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5, |
| ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7 |
| }; |
| |
| static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG; |
| |
| static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring) |
| { |
| struct netxen_adapter *adapter = sds_ring->adapter; |
| |
| NXWRIO(adapter, sds_ring->crb_intr_mask, 0); |
| } |
| |
| static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring) |
| { |
| struct netxen_adapter *adapter = sds_ring->adapter; |
| |
| NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1); |
| |
| if (!NETXEN_IS_MSI_FAMILY(adapter)) |
| NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff); |
| } |
| |
| static int |
| netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count) |
| { |
| int size = sizeof(struct nx_host_sds_ring) * count; |
| |
| recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL); |
| |
| return (recv_ctx->sds_rings == NULL); |
| } |
| |
| static void |
| netxen_free_sds_rings(struct netxen_recv_context *recv_ctx) |
| { |
| if (recv_ctx->sds_rings != NULL) |
| kfree(recv_ctx->sds_rings); |
| |
| recv_ctx->sds_rings = NULL; |
| } |
| |
| static int |
| netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev) |
| { |
| int ring; |
| struct nx_host_sds_ring *sds_ring; |
| struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; |
| |
| if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) |
| return -ENOMEM; |
| |
| for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
| sds_ring = &recv_ctx->sds_rings[ring]; |
| netif_napi_add(netdev, &sds_ring->napi, |
| netxen_nic_poll, NETXEN_NETDEV_WEIGHT); |
| } |
| |
| return 0; |
| } |
| |
| static void |
| netxen_napi_del(struct netxen_adapter *adapter) |
| { |
| int ring; |
| struct nx_host_sds_ring *sds_ring; |
| struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; |
| |
| for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
| sds_ring = &recv_ctx->sds_rings[ring]; |
| netif_napi_del(&sds_ring->napi); |
| } |
| |
| netxen_free_sds_rings(&adapter->recv_ctx); |
| } |
| |
| static void |
| netxen_napi_enable(struct netxen_adapter *adapter) |
| { |
| int ring; |
| struct nx_host_sds_ring *sds_ring; |
| struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; |
| |
| for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
| sds_ring = &recv_ctx->sds_rings[ring]; |
| napi_enable(&sds_ring->napi); |
| netxen_nic_enable_int(sds_ring); |
| } |
| } |
| |
| static void |
| netxen_napi_disable(struct netxen_adapter *adapter) |
| { |
| int ring; |
| struct nx_host_sds_ring *sds_ring; |
| struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; |
| |
| for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
| sds_ring = &recv_ctx->sds_rings[ring]; |
| netxen_nic_disable_int(sds_ring); |
| napi_synchronize(&sds_ring->napi); |
| napi_disable(&sds_ring->napi); |
| } |
| } |
| |
| static int nx_set_dma_mask(struct netxen_adapter *adapter) |
| { |
| struct pci_dev *pdev = adapter->pdev; |
| uint64_t mask, cmask; |
| |
| adapter->pci_using_dac = 0; |
| |
| mask = DMA_BIT_MASK(32); |
| cmask = DMA_BIT_MASK(32); |
| |
| if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
| #ifndef CONFIG_IA64 |
| mask = DMA_BIT_MASK(35); |
| #endif |
| } else { |
| mask = DMA_BIT_MASK(39); |
| cmask = mask; |
| } |
| |
| if (pci_set_dma_mask(pdev, mask) == 0 && |
| pci_set_consistent_dma_mask(pdev, cmask) == 0) { |
| adapter->pci_using_dac = 1; |
| return 0; |
| } |
| |
| return -EIO; |
| } |
| |
| /* Update addressable range if firmware supports it */ |
| static int |
| nx_update_dma_mask(struct netxen_adapter *adapter) |
| { |
| int change, shift, err; |
| uint64_t mask, old_mask, old_cmask; |
| struct pci_dev *pdev = adapter->pdev; |
| |
| change = 0; |
| |
| shift = NXRD32(adapter, CRB_DMA_SHIFT); |
| if (shift > 32) |
| return 0; |
| |
| if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9)) |
| change = 1; |
| else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4)) |
| change = 1; |
| |
| if (change) { |
| old_mask = pdev->dma_mask; |
| old_cmask = pdev->dev.coherent_dma_mask; |
| |
| mask = DMA_BIT_MASK(32+shift); |
| |
| err = pci_set_dma_mask(pdev, mask); |
| if (err) |
| goto err_out; |
| |
| if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
| |
| err = pci_set_consistent_dma_mask(pdev, mask); |
| if (err) |
| goto err_out; |
| } |
| dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift); |
| } |
| |
| return 0; |
| |
| err_out: |
| pci_set_dma_mask(pdev, old_mask); |
| pci_set_consistent_dma_mask(pdev, old_cmask); |
| return err; |
| } |
| |
| static int |
| netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) |
| { |
| u32 val, timeout; |
| |
| if (first_boot == 0x55555555) { |
| /* This is the first boot after power up */ |
| NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); |
| |
| if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) |
| return 0; |
| |
| /* PCI bus master workaround */ |
| first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4)); |
| if (!(first_boot & 0x4)) { |
| first_boot |= 0x4; |
| NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot); |
| first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4)); |
| } |
| |
| /* This is the first boot after power up */ |
| first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET); |
| if (first_boot != 0x80000f) { |
| /* clear the register for future unloads/loads */ |
| NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0); |
| return -EIO; |
| } |
| |
| /* Start P2 boot loader */ |
| val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE); |
| NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1); |
| timeout = 0; |
| do { |
| msleep(1); |
| val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); |
| |
| if (++timeout > 5000) |
| return -EIO; |
| |
| } while (val == NETXEN_BDINFO_MAGIC); |
| } |
| return 0; |
| } |
| |
| static void netxen_set_port_mode(struct netxen_adapter *adapter) |
| { |
| u32 val, data; |
| |
| val = adapter->ahw.board_type; |
| if ((val == NETXEN_BRDTYPE_P3_HMEZ) || |
| (val == NETXEN_BRDTYPE_P3_XG_LOM)) { |
| if (port_mode == NETXEN_PORT_MODE_802_3_AP) { |
| data = NETXEN_PORT_MODE_802_3_AP; |
| NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); |
| } else if (port_mode == NETXEN_PORT_MODE_XG) { |
| data = NETXEN_PORT_MODE_XG; |
| NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); |
| } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) { |
| data = NETXEN_PORT_MODE_AUTO_NEG_1G; |
| NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); |
| } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) { |
| data = NETXEN_PORT_MODE_AUTO_NEG_XG; |
| NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); |
| } else { |
| data = NETXEN_PORT_MODE_AUTO_NEG; |
| NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); |
| } |
| |
| if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) && |
| (wol_port_mode != NETXEN_PORT_MODE_XG) && |
| (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) && |
| (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) { |
| wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG; |
| } |
| NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode); |
| } |
| } |
| |
| static void netxen_set_msix_bit(struct pci_dev *pdev, int enable) |
| { |
| u32 control; |
| int pos; |
| |
| pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); |
| if (pos) { |
| pci_read_config_dword(pdev, pos, &control); |
| if (enable) |
| control |= PCI_MSIX_FLAGS_ENABLE; |
| else |
| control = 0; |
| pci_write_config_dword(pdev, pos, control); |
| } |
| } |
| |
| static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count) |
| { |
| int i; |
| |
| for (i = 0; i < count; i++) |
| adapter->msix_entries[i].entry = i; |
| } |
| |
| static int |
| netxen_read_mac_addr(struct netxen_adapter *adapter) |
| { |
| int i; |
| unsigned char *p; |
| __le64 mac_addr; |
| struct net_device *netdev = adapter->netdev; |
| struct pci_dev *pdev = adapter->pdev; |
| |
| if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
| if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0) |
| return -EIO; |
| } else { |
| if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0) |
| return -EIO; |
| } |
| |
| p = (unsigned char *)&mac_addr; |
| for (i = 0; i < 6; i++) |
| netdev->dev_addr[i] = *(p + 5 - i); |
| |
| memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len); |
| |
| /* set station address */ |
| |
| if (!is_valid_ether_addr(netdev->perm_addr)) |
| dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr); |
| |
| return 0; |
| } |
| |
| int netxen_nic_set_mac(struct net_device *netdev, void *p) |
| { |
| struct netxen_adapter *adapter = netdev_priv(netdev); |
| struct sockaddr *addr = p; |
| |
| if (!is_valid_ether_addr(addr->sa_data)) |
| return -EINVAL; |
| |
| if (netif_running(netdev)) { |
| netif_device_detach(netdev); |
| netxen_napi_disable(adapter); |
| } |
| |
| memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); |
| adapter->macaddr_set(adapter, addr->sa_data); |
| |
| if (netif_running(netdev)) { |
| netif_device_attach(netdev); |
| netxen_napi_enable(adapter); |
| } |
| return 0; |
| } |
| |
| static void netxen_set_multicast_list(struct net_device *dev) |
| { |
| struct netxen_adapter *adapter = netdev_priv(dev); |
| |
| adapter->set_multi(dev); |
| } |
| |
| static const struct net_device_ops netxen_netdev_ops = { |
| .ndo_open = netxen_nic_open, |
| .ndo_stop = netxen_nic_close, |
| .ndo_start_xmit = netxen_nic_xmit_frame, |
| .ndo_get_stats = netxen_nic_get_stats, |
| .ndo_validate_addr = eth_validate_addr, |
| .ndo_set_multicast_list = netxen_set_multicast_list, |
| .ndo_set_mac_address = netxen_nic_set_mac, |
| .ndo_change_mtu = netxen_nic_change_mtu, |
| .ndo_tx_timeout = netxen_tx_timeout, |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| .ndo_poll_controller = netxen_nic_poll_controller, |
| #endif |
| }; |
| |
| static void |
| netxen_setup_intr(struct netxen_adapter *adapter) |
| { |
| struct netxen_legacy_intr_set *legacy_intrp; |
| struct pci_dev *pdev = adapter->pdev; |
| int err, num_msix; |
| |
| if (adapter->rss_supported) { |
| num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ? |
| MSIX_ENTRIES_PER_ADAPTER : 2; |
| } else |
| num_msix = 1; |
| |
| adapter->max_sds_rings = 1; |
| |
| adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED); |
| |
| if (adapter->ahw.revision_id >= NX_P3_B0) |
| legacy_intrp = &legacy_intr[adapter->ahw.pci_func]; |
| else |
| legacy_intrp = &legacy_intr[0]; |
| |
| adapter->int_vec_bit = legacy_intrp->int_vec_bit; |
| adapter->tgt_status_reg = netxen_get_ioaddr(adapter, |
| legacy_intrp->tgt_status_reg); |
| adapter->tgt_mask_reg = netxen_get_ioaddr(adapter, |
| legacy_intrp->tgt_mask_reg); |
| adapter->pci_int_reg = netxen_get_ioaddr(adapter, |
| legacy_intrp->pci_int_reg); |
| adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR); |
| |
| if (adapter->ahw.revision_id >= NX_P3_B1) |
| adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, |
| ISR_INT_STATE_REG); |
| else |
| adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, |
| CRB_INT_VECTOR); |
| |
| netxen_set_msix_bit(pdev, 0); |
| |
| if (adapter->msix_supported) { |
| |
| netxen_init_msix_entries(adapter, num_msix); |
| err = pci_enable_msix(pdev, adapter->msix_entries, num_msix); |
| if (err == 0) { |
| adapter->flags |= NETXEN_NIC_MSIX_ENABLED; |
| netxen_set_msix_bit(pdev, 1); |
| |
| if (adapter->rss_supported) |
| adapter->max_sds_rings = num_msix; |
| |
| dev_info(&pdev->dev, "using msi-x interrupts\n"); |
| return; |
| } |
| |
| if (err > 0) |
| pci_disable_msix(pdev); |
| |
| /* fall through for msi */ |
| } |
| |
| if (use_msi && !pci_enable_msi(pdev)) { |
| adapter->flags |= NETXEN_NIC_MSI_ENABLED; |
| adapter->tgt_status_reg = netxen_get_ioaddr(adapter, |
| msi_tgt_status[adapter->ahw.pci_func]); |
| dev_info(&pdev->dev, "using msi interrupts\n"); |
| adapter->msix_entries[0].vector = pdev->irq; |
| return; |
| } |
| |
| dev_info(&pdev->dev, "using legacy interrupts\n"); |
| adapter->msix_entries[0].vector = pdev->irq; |
| } |
| |
| static void |
| netxen_teardown_intr(struct netxen_adapter *adapter) |
| { |
| if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) |
| pci_disable_msix(adapter->pdev); |
| if (adapter->flags & NETXEN_NIC_MSI_ENABLED) |
| pci_disable_msi(adapter->pdev); |
| } |
| |
| static void |
| netxen_cleanup_pci_map(struct netxen_adapter *adapter) |
| { |
| if (adapter->ahw.db_base != NULL) |
| iounmap(adapter->ahw.db_base); |
| if (adapter->ahw.pci_base0 != NULL) |
| iounmap(adapter->ahw.pci_base0); |
| if (adapter->ahw.pci_base1 != NULL) |
| iounmap(adapter->ahw.pci_base1); |
| if (adapter->ahw.pci_base2 != NULL) |
| iounmap(adapter->ahw.pci_base2); |
| } |
| |
| static int |
| netxen_setup_pci_map(struct netxen_adapter *adapter) |
| { |
| void __iomem *mem_ptr0 = NULL; |
| void __iomem *mem_ptr1 = NULL; |
| void __iomem *mem_ptr2 = NULL; |
| void __iomem *db_ptr = NULL; |
| |
| resource_size_t mem_base, db_base; |
| unsigned long mem_len, db_len = 0, pci_len0 = 0; |
| |
| struct pci_dev *pdev = adapter->pdev; |
| int pci_func = adapter->ahw.pci_func; |
| |
| int err = 0; |
| |
| /* |
| * Set the CRB window to invalid. If any register in window 0 is |
| * accessed it should set the window to 0 and then reset it to 1. |
| */ |
| adapter->ahw.crb_win = -1; |
| adapter->ahw.ocm_win = -1; |
| |
| /* remap phys address */ |
| mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ |
| mem_len = pci_resource_len(pdev, 0); |
| |
| /* 128 Meg of memory */ |
| if (mem_len == NETXEN_PCI_128MB_SIZE) { |
| mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); |
| mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, |
| SECOND_PAGE_GROUP_SIZE); |
| mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, |
| THIRD_PAGE_GROUP_SIZE); |
| pci_len0 = FIRST_PAGE_GROUP_SIZE; |
| } else if (mem_len == NETXEN_PCI_32MB_SIZE) { |
| mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); |
| mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - |
| SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); |
| } else if (mem_len == NETXEN_PCI_2MB_SIZE) { |
| |
| mem_ptr0 = pci_ioremap_bar(pdev, 0); |
| if (mem_ptr0 == NULL) { |
| dev_err(&pdev->dev, "failed to map PCI bar 0\n"); |
| return -EIO; |
| } |
| pci_len0 = mem_len; |
| } else { |
| return -EIO; |
| } |
| |
| netxen_setup_hwops(adapter); |
| |
| dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); |
| |
| adapter->ahw.pci_base0 = mem_ptr0; |
| adapter->ahw.pci_len0 = pci_len0; |
| adapter->ahw.pci_base1 = mem_ptr1; |
| adapter->ahw.pci_base2 = mem_ptr2; |
| |
| if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) { |
| adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, |
| NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func))); |
| |
| } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
| adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, |
| NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func))); |
| } |
| |
| if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
| goto skip_doorbell; |
| |
| db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ |
| db_len = pci_resource_len(pdev, 4); |
| |
| if (db_len == 0) { |
| printk(KERN_ERR "%s: doorbell is disabled\n", |
| netxen_nic_driver_name); |
| err = -EIO; |
| goto err_out; |
| } |
| |
| db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); |
| if (!db_ptr) { |
| printk(KERN_ERR "%s: Failed to allocate doorbell map.", |
| netxen_nic_driver_name); |
| err = -EIO; |
| goto err_out; |
| } |
| |
| skip_doorbell: |
| adapter->ahw.db_base = db_ptr; |
| adapter->ahw.db_len = db_len; |
| return 0; |
| |
| err_out: |
| netxen_cleanup_pci_map(adapter); |
| return err; |
| } |
| |
| static void |
| netxen_check_options(struct netxen_adapter *adapter) |
| { |
| u32 fw_major, fw_minor, fw_build; |
| char brd_name[NETXEN_MAX_SHORT_NAME]; |
| char serial_num[32]; |
| int i, offset, val; |
| int *ptr32; |
| struct pci_dev *pdev = adapter->pdev; |
| |
| adapter->driver_mismatch = 0; |
| |
| ptr32 = (int *)&serial_num; |
| offset = NX_FW_SERIAL_NUM_OFFSET; |
| for (i = 0; i < 8; i++) { |
| if (netxen_rom_fast_read(adapter, offset, &val) == -1) { |
| dev_err(&pdev->dev, "error reading board info\n"); |
| adapter->driver_mismatch = 1; |
| return; |
| } |
| ptr32[i] = cpu_to_le32(val); |
| offset += sizeof(u32); |
| } |
| |
| fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR); |
| fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR); |
| fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB); |
| |
| adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build); |
| |
| if (adapter->portnum == 0) { |
| get_brd_name_by_type(adapter->ahw.board_type, brd_name); |
| |
| printk(KERN_INFO "NetXen %s Board S/N %s Chip rev 0x%x\n", |
| brd_name, serial_num, adapter->ahw.revision_id); |
| } |
| |
| if (adapter->fw_version < NETXEN_VERSION_CODE(3, 4, 216)) { |
| adapter->driver_mismatch = 1; |
| dev_warn(&pdev->dev, "firmware version %d.%d.%d unsupported\n", |
| fw_major, fw_minor, fw_build); |
| return; |
| } |
| |
| if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
| i = NXRD32(adapter, NETXEN_SRE_MISC); |
| adapter->ahw.cut_through = (i & 0x8000) ? 1 : 0; |
| } |
| |
| dev_info(&pdev->dev, "firmware v%d.%d.%d [%s]\n", |
| fw_major, fw_minor, fw_build, |
| adapter->ahw.cut_through ? "cut-through" : "legacy"); |
| |
| if (adapter->fw_version >= NETXEN_VERSION_CODE(4, 0, 222)) |
| adapter->capabilities = NXRD32(adapter, CRB_FW_CAPABILITIES_1); |
| |
| adapter->flags &= ~NETXEN_NIC_LRO_ENABLED; |
| |
| if (adapter->ahw.port_type == NETXEN_NIC_XGBE) { |
| adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G; |
| adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; |
| } else if (adapter->ahw.port_type == NETXEN_NIC_GBE) { |
| adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G; |
| adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; |
| } |
| |
| adapter->msix_supported = 0; |
| if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
| adapter->msix_supported = !!use_msi_x; |
| adapter->rss_supported = !!use_msi_x; |
| } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) { |
| switch (adapter->ahw.board_type) { |
| case NETXEN_BRDTYPE_P2_SB31_10G: |
| case NETXEN_BRDTYPE_P2_SB31_10G_CX4: |
| adapter->msix_supported = !!use_msi_x; |
| adapter->rss_supported = !!use_msi_x; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| adapter->num_txd = MAX_CMD_DESCRIPTORS; |
| |
| if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
| adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS; |
| adapter->max_rds_rings = 3; |
| } else { |
| adapter->num_lro_rxd = 0; |
| adapter->max_rds_rings = 2; |
| } |
| } |
| |
| static int |
| netxen_start_firmware(struct netxen_adapter *adapter) |
| { |
| int val, err, first_boot; |
| struct pci_dev *pdev = adapter->pdev; |
| |
| /* required for NX2031 dummy dma */ |
| err = nx_set_dma_mask(adapter); |
| if (err) |
| return err; |
| |
| if (!netxen_can_start_firmware(adapter)) |
| goto wait_init; |
| |
| first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); |
| |
| err = netxen_check_hw_init(adapter, first_boot); |
| if (err) { |
| dev_err(&pdev->dev, "error in init HW init sequence\n"); |
| return err; |
| } |
| |
| netxen_request_firmware(adapter); |
| |
| err = netxen_need_fw_reset(adapter); |
| if (err < 0) |
| goto err_out; |
| if (err == 0) |
| goto ready; |
| |
| if (first_boot != 0x55555555) { |
| NXWR32(adapter, CRB_CMDPEG_STATE, 0); |
| netxen_pinit_from_rom(adapter); |
| msleep(1); |
| } |
| |
| NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555); |
| NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0); |
| NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0); |
| |
| if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
| netxen_set_port_mode(adapter); |
| |
| err = netxen_load_firmware(adapter); |
| if (err) |
| goto err_out; |
| |
| netxen_release_firmware(adapter); |
| |
| if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
| |
| /* Initialize multicast addr pool owners */ |
| val = 0x7654; |
| if (adapter->ahw.port_type == NETXEN_NIC_XGBE) |
| val |= 0x0f000000; |
| NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val); |
| |
| } |
| |
| err = netxen_init_dummy_dma(adapter); |
| if (err) |
| goto err_out; |
| |
| /* |
| * Tell the hardware our version number. |
| */ |
| val = (_NETXEN_NIC_LINUX_MAJOR << 16) |
| | ((_NETXEN_NIC_LINUX_MINOR << 8)) |
| | (_NETXEN_NIC_LINUX_SUBVERSION); |
| NXWR32(adapter, CRB_DRIVER_VERSION, val); |
| |
| ready: |
| NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY); |
| |
| wait_init: |
| /* Handshake with the card before we register the devices. */ |
| err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); |
| if (err) { |
| netxen_free_dummy_dma(adapter); |
| goto err_out; |
| } |
| |
| nx_update_dma_mask(adapter); |
| |
| netxen_check_options(adapter); |
| |
| adapter->need_fw_reset = 0; |
| |
| /* fall through and release firmware */ |
| |
| err_out: |
| netxen_release_firmware(adapter); |
| return err; |
| } |
| |
| static int |
| netxen_nic_request_irq(struct netxen_adapter *adapter) |
| { |
| irq_handler_t handler; |
| struct nx_host_sds_ring *sds_ring; |
| int err, ring; |
| |
| unsigned long flags = IRQF_SAMPLE_RANDOM; |
| struct net_device *netdev = adapter->netdev; |
| struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; |
| |
| if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) |
| handler = netxen_msix_intr; |
| else if (adapter->flags & NETXEN_NIC_MSI_ENABLED) |
| handler = netxen_msi_intr; |
| else { |
| flags |= IRQF_SHARED; |
| handler = netxen_intr; |
| } |
| adapter->irq = netdev->irq; |
| |
| for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
| sds_ring = &recv_ctx->sds_rings[ring]; |
| sprintf(sds_ring->name, "%s[%d]", netdev->name, ring); |
| err = request_irq(sds_ring->irq, handler, |
| flags, sds_ring->name, sds_ring); |
| if (err) |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static void |
| netxen_nic_free_irq(struct netxen_adapter *adapter) |
| { |
| int ring; |
| struct nx_host_sds_ring *sds_ring; |
| |
| struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; |
| |
| for (ring = 0; ring < adapter->max_sds_rings; ring++) { |
| sds_ring = &recv_ctx->sds_rings[ring]; |
| free_irq(sds_ring->irq, sds_ring); |
| } |
| } |
| |
| static void |
| netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter) |
| { |
| adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT; |
| adapter->coal.normal.data.rx_time_us = |
| NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US; |
| adapter->coal.normal.data.rx_packets = |
| NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS; |
| adapter->coal.normal.data.tx_time_us = |
| NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US; |
| adapter->coal.normal.data.tx_packets = |
| NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS; |
| } |
| |
| static int |
| netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) |
| { |
| int err; |
| |
| if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) |
| return -EIO; |
| |
| err = adapter->init_port(adapter, adapter->physical_port); |
| if (err) { |
| printk(KERN_ERR "%s: Failed to initialize port %d\n", |
| netxen_nic_driver_name, adapter->portnum); |
| return err; |
| } |
| if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) |
| adapter->macaddr_set(adapter, netdev->dev_addr); |
| |
| adapter->set_multi(netdev); |
| adapter->set_mtu(adapter, netdev->mtu); |
| |
| adapter->ahw.linkup = 0; |
| |
| if (adapter->max_sds_rings > 1) |
| netxen_config_rss(adapter, 1); |
| |
| if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
| netxen_config_intr_coalesce(adapter); |
| |
| if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO) |
| netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED); |
| |
| netxen_napi_enable(adapter); |
| |
| if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) |
| netxen_linkevent_request(adapter, 1); |
| else |
| netxen_nic_set_link_parameters(adapter); |
| |
| set_bit(__NX_DEV_UP, &adapter->state); |
| return 0; |
| } |
| |
| static void |
| netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) |
| { |
| if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) |
| return; |
| |
| clear_bit(__NX_DEV_UP, &adapter->state); |
| |
| spin_lock(&adapter->tx_clean_lock); |
| netif_carrier_off(netdev); |
| netif_tx_disable(netdev); |
| |
| if (adapter->stop_port) |
| adapter->stop_port(adapter); |
| |
| if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
| netxen_p3_free_mac_list(adapter); |
| |
| adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE); |
| |
| netxen_napi_disable(adapter); |
| |
| netxen_release_tx_buffers(adapter); |
| spin_unlock(&adapter->tx_clean_lock); |
| } |
| |
| |
| static int |
| netxen_nic_attach(struct netxen_adapter *adapter) |
| { |
| struct net_device *netdev = adapter->netdev; |
| struct pci_dev *pdev = adapter->pdev; |
| int err, ring; |
| struct nx_host_rds_ring *rds_ring; |
| struct nx_host_tx_ring *tx_ring; |
| |
| if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) |
| return 0; |
| |
| err = netxen_init_firmware(adapter); |
| if (err) |
| return err; |
| |
| err = netxen_napi_add(adapter, netdev); |
| if (err) |
| return err; |
| |
| err = netxen_alloc_sw_resources(adapter); |
| if (err) { |
| printk(KERN_ERR "%s: Error in setting sw resources\n", |
| netdev->name); |
| return err; |
| } |
| |
| err = netxen_alloc_hw_resources(adapter); |
| if (err) { |
| printk(KERN_ERR "%s: Error in setting hw resources\n", |
| netdev->name); |
| goto err_out_free_sw; |
| } |
| |
| if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
| tx_ring = adapter->tx_ring; |
| tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter, |
| crb_cmd_producer[adapter->portnum]); |
| tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter, |
| crb_cmd_consumer[adapter->portnum]); |
| |
| tx_ring->producer = 0; |
| tx_ring->sw_consumer = 0; |
| |
| netxen_nic_update_cmd_producer(adapter, tx_ring); |
| netxen_nic_update_cmd_consumer(adapter, tx_ring); |
| } |
| |
| for (ring = 0; ring < adapter->max_rds_rings; ring++) { |
| rds_ring = &adapter->recv_ctx.rds_rings[ring]; |
| netxen_post_rx_buffers(adapter, ring, rds_ring); |
| } |
| |
| err = netxen_nic_request_irq(adapter); |
| if (err) { |
| dev_err(&pdev->dev, "%s: failed to setup interrupt\n", |
| netdev->name); |
| goto err_out_free_rxbuf; |
| } |
| |
| if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
| netxen_nic_init_coalesce_defaults(adapter); |
| |
| netxen_create_sysfs_entries(adapter); |
| |
| adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; |
| return 0; |
| |
| err_out_free_rxbuf: |
| netxen_release_rx_buffers(adapter); |
| netxen_free_hw_resources(adapter); |
| err_out_free_sw: |
| netxen_free_sw_resources(adapter); |
| return err; |
| } |
| |
| static void |
| netxen_nic_detach(struct netxen_adapter *adapter) |
| { |
| if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) |
| return; |
| |
| netxen_remove_sysfs_entries(adapter); |
| |
| netxen_free_hw_resources(adapter); |
| netxen_release_rx_buffers(adapter); |
| netxen_nic_free_irq(adapter); |
| netxen_napi_del(adapter); |
| netxen_free_sw_resources(adapter); |
| |
| adapter->is_up = 0; |
| } |
| |
| int |
| netxen_nic_reset_context(struct netxen_adapter *adapter) |
| { |
| int err = 0; |
| struct net_device *netdev = adapter->netdev; |
| |
| if (test_and_set_bit(__NX_RESETTING, &adapter->state)) |
| return -EBUSY; |
| |
| if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { |
| |
| netif_device_detach(netdev); |
| |
| if (netif_running(netdev)) |
| netxen_nic_down(adapter, netdev); |
| |
| netxen_nic_detach(adapter); |
| |
| if (netif_running(netdev)) { |
| err = netxen_nic_attach(adapter); |
| if (!err) |
| err = netxen_nic_up(adapter, netdev); |
| |
| if (err) |
| goto done; |
| } |
| |
| netif_device_attach(netdev); |
| } |
| |
| done: |
| clear_bit(__NX_RESETTING, &adapter->state); |
| return err; |
| } |
| |
| static int |
| netxen_setup_netdev(struct netxen_adapter *adapter, |
| struct net_device *netdev) |
| { |
| int err = 0; |
| struct pci_dev *pdev = adapter->pdev; |
| |
| adapter->rx_csum = 1; |
| adapter->mc_enabled = 0; |
| if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) |
| adapter->max_mc_count = 38; |
| else |
| adapter->max_mc_count = 16; |
| |
| netdev->netdev_ops = &netxen_netdev_ops; |
| netdev->watchdog_timeo = 2*HZ; |
| |
| netxen_nic_change_mtu(netdev, netdev->mtu); |
| |
| SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); |
| |
| netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO); |
| netdev->features |= (NETIF_F_GRO); |
| netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO); |
| |
| if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
| netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6); |
| netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6); |
| } |
| |
| if (adapter->pci_using_dac) { |
| netdev->features |= NETIF_F_HIGHDMA; |
| netdev->vlan_features |= NETIF_F_HIGHDMA; |
| } |
| |
| if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX) |
| netdev->features |= (NETIF_F_HW_VLAN_TX); |
| |
| if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO) |
| netdev->features |= NETIF_F_LRO; |
| |
| netdev->irq = adapter->msix_entries[0].vector; |
| |
| INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); |
| |
| if (netxen_read_mac_addr(adapter)) |
| dev_warn(&pdev->dev, "failed to read mac addr\n"); |
| |
| netif_carrier_off(netdev); |
| netif_stop_queue(netdev); |
| |
| err = register_netdev(netdev); |
| if (err) { |
| dev_err(&pdev->dev, "failed to register net device\n"); |
| return err; |
| } |
| |
| return 0; |
| } |
| |
| static int __devinit |
| netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) |
| { |
| struct net_device *netdev = NULL; |
| struct netxen_adapter *adapter = NULL; |
| int i = 0, err; |
| int pci_func_id = PCI_FUNC(pdev->devfn); |
| uint8_t revision_id; |
| |
| if (pdev->class != 0x020000) { |
| printk(KERN_DEBUG "NetXen function %d, class %x will not " |
| "be enabled.\n",pci_func_id, pdev->class); |
| return -ENODEV; |
| } |
| |
| if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) { |
| printk(KERN_WARNING "NetXen chip revisions between 0x%x-0x%x" |
| "will not be enabled.\n", |
| NX_P3_A0, NX_P3_B1); |
| return -ENODEV; |
| } |
| |
| if ((err = pci_enable_device(pdev))) |
| return err; |
| |
| if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { |
| err = -ENODEV; |
| goto err_out_disable_pdev; |
| } |
| |
| if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) |
| goto err_out_disable_pdev; |
| |
| pci_set_master(pdev); |
| |
| netdev = alloc_etherdev(sizeof(struct netxen_adapter)); |
| if(!netdev) { |
| dev_err(&pdev->dev, "failed to allocate net_device\n"); |
| err = -ENOMEM; |
| goto err_out_free_res; |
| } |
| |
| SET_NETDEV_DEV(netdev, &pdev->dev); |
| |
| adapter = netdev_priv(netdev); |
| adapter->netdev = netdev; |
| adapter->pdev = pdev; |
| adapter->ahw.pci_func = pci_func_id; |
| |
| revision_id = pdev->revision; |
| adapter->ahw.revision_id = revision_id; |
| |
| rwlock_init(&adapter->ahw.crb_lock); |
| spin_lock_init(&adapter->ahw.mem_lock); |
| |
| spin_lock_init(&adapter->tx_clean_lock); |
| INIT_LIST_HEAD(&adapter->mac_list); |
| |
| err = netxen_setup_pci_map(adapter); |
| if (err) |
| goto err_out_free_netdev; |
| |
| /* This will be reset for mezz cards */ |
| adapter->portnum = pci_func_id; |
| |
| err = netxen_nic_get_board_info(adapter); |
| if (err) { |
| dev_err(&pdev->dev, "Error getting board config info.\n"); |
| goto err_out_iounmap; |
| } |
| |
| /* Mezz cards have PCI function 0,2,3 enabled */ |
| switch (adapter->ahw.board_type) { |
| case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: |
| case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: |
| if (pci_func_id >= 2) |
| adapter->portnum = pci_func_id - 2; |
| break; |
| default: |
| break; |
| } |
| |
| err = netxen_start_firmware(adapter); |
| if (err) |
| goto err_out_iounmap; |
| |
| /* |
| * See if the firmware gave us a virtual-physical port mapping. |
| */ |
| adapter->physical_port = adapter->portnum; |
| if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
| i = NXRD32(adapter, CRB_V2P(adapter->portnum)); |
| if (i != 0x55555555) |
| adapter->physical_port = i; |
| } |
| |
| netxen_nic_clear_stats(adapter); |
| |
| netxen_setup_intr(adapter); |
| |
| err = netxen_setup_netdev(adapter, netdev); |
| if (err) |
| goto err_out_disable_msi; |
| |
| pci_set_drvdata(pdev, adapter); |
| |
| netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); |
| |
| switch (adapter->ahw.port_type) { |
| case NETXEN_NIC_GBE: |
| dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", |
| adapter->netdev->name); |
| break; |
| case NETXEN_NIC_XGBE: |
| dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", |
| adapter->netdev->name); |
| break; |
| } |
| |
| netxen_create_diag_entries(adapter); |
| |
| return 0; |
| |
| err_out_disable_msi: |
| netxen_teardown_intr(adapter); |
| |
| netxen_free_dummy_dma(adapter); |
| |
| nx_decr_dev_ref_cnt(adapter); |
| |
| err_out_iounmap: |
| netxen_cleanup_pci_map(adapter); |
| |
| err_out_free_netdev: |
| free_netdev(netdev); |
| |
| err_out_free_res: |
| pci_release_regions(pdev); |
| |
| err_out_disable_pdev: |
| pci_set_drvdata(pdev, NULL); |
| pci_disable_device(pdev); |
| return err; |
| } |
| |
| static void __devexit netxen_nic_remove(struct pci_dev *pdev) |
| { |
| struct netxen_adapter *adapter; |
| struct net_device *netdev; |
| |
| adapter = pci_get_drvdata(pdev); |
| if (adapter == NULL) |
| return; |
| |
| netdev = adapter->netdev; |
| |
| netxen_cancel_fw_work(adapter); |
| |
| unregister_netdev(netdev); |
| |
| cancel_work_sync(&adapter->tx_timeout_task); |
| |
| netxen_nic_detach(adapter); |
| |
| nx_decr_dev_ref_cnt(adapter); |
| |
| if (adapter->portnum == 0) |
| netxen_free_dummy_dma(adapter); |
| |
| clear_bit(__NX_RESETTING, &adapter->state); |
| |
| netxen_teardown_intr(adapter); |
| |
| netxen_remove_diag_entries(adapter); |
| |
| netxen_cleanup_pci_map(adapter); |
| |
| netxen_release_firmware(adapter); |
| |
| pci_release_regions(pdev); |
| pci_disable_device(pdev); |
| pci_set_drvdata(pdev, NULL); |
| |
| free_netdev(netdev); |
| } |
| static int __netxen_nic_shutdown(struct pci_dev *pdev) |
| { |
| struct netxen_adapter *adapter = pci_get_drvdata(pdev); |
| struct net_device *netdev = adapter->netdev; |
| int retval; |
| |
| netif_device_detach(netdev); |
| |
| netxen_cancel_fw_work(adapter); |
| |
| if (netif_running(netdev)) |
| netxen_nic_down(adapter, netdev); |
| |
| cancel_work_sync(&adapter->tx_timeout_task); |
| |
| netxen_nic_detach(adapter); |
| |
| if (adapter->portnum == 0) |
| netxen_free_dummy_dma(adapter); |
| |
| nx_decr_dev_ref_cnt(adapter); |
| |
| clear_bit(__NX_RESETTING, &adapter->state); |
| |
| retval = pci_save_state(pdev); |
| if (retval) |
| return retval; |
| |
| if (netxen_nic_wol_supported(adapter)) { |
| pci_enable_wake(pdev, PCI_D3cold, 1); |
| pci_enable_wake(pdev, PCI_D3hot, 1); |
| } |
| |
| pci_disable_device(pdev); |
| |
| return 0; |
| } |
| static void netxen_nic_shutdown(struct pci_dev *pdev) |
| { |
| if (__netxen_nic_shutdown(pdev)) |
| return; |
| } |
| #ifdef CONFIG_PM |
| static int |
| netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state) |
| { |
| int retval; |
| |
| retval = __netxen_nic_shutdown(pdev); |
| if (retval) |
| return retval; |
| |
| pci_set_power_state(pdev, pci_choose_state(pdev, state)); |
| return 0; |
| } |
| |
| static int |
| netxen_nic_resume(struct pci_dev *pdev) |
| { |
| struct netxen_adapter *adapter = pci_get_drvdata(pdev); |
| struct net_device *netdev = adapter->netdev; |
| int err; |
| |
| pci_set_power_state(pdev, PCI_D0); |
| pci_restore_state(pdev); |
| |
| err = pci_enable_device(pdev); |
| if (err) |
| return err; |
| |
| adapter->ahw.crb_win = -1; |
| adapter->ahw.ocm_win = -1; |
| |
| err = netxen_start_firmware(adapter); |
| if (err) { |
| dev_err(&pdev->dev, "failed to start firmware\n"); |
| return err; |
| } |
| |
| if (netif_running(netdev)) { |
| err = netxen_nic_attach(adapter); |
| if (err) |
| goto err_out; |
| |
| err = netxen_nic_up(adapter, netdev); |
| if (err) |
| goto err_out_detach; |
| |
| netif_device_attach(netdev); |
| |
| netxen_config_indev_addr(netdev, NETDEV_UP); |
| } |
| |
| netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); |
| return 0; |
| |
| err_out_detach: |
| netxen_nic_detach(adapter); |
| err_out: |
| nx_decr_dev_ref_cnt(adapter); |
| return err; |
| } |
| #endif |
| |
| static int netxen_nic_open(struct net_device *netdev) |
| { |
| struct netxen_adapter *adapter = netdev_priv(netdev); |
| int err = 0; |
| |
| if (adapter->driver_mismatch) |
| return -EIO; |
| |
| err = netxen_nic_attach(adapter); |
| if (err) |
| return err; |
| |
| err = netxen_nic_up(adapter, netdev); |
| if (err) |
| goto err_out; |
| |
| netif_start_queue(netdev); |
| |
| return 0; |
| |
| err_out: |
| netxen_nic_detach(adapter); |
| return err; |
| } |
| |
| /* |
| * netxen_nic_close - Disables a network interface entry point |
| */ |
| static int netxen_nic_close(struct net_device *netdev) |
| { |
| struct netxen_adapter *adapter = netdev_priv(netdev); |
| |
| netxen_nic_down(adapter, netdev); |
| return 0; |
| } |
| |
| static void |
| netxen_tso_check(struct net_device *netdev, |
| struct nx_host_tx_ring *tx_ring, |
| struct cmd_desc_type0 *first_desc, |
| struct sk_buff *skb) |
| { |
| u8 opcode = TX_ETHER_PKT; |
| __be16 protocol = skb->protocol; |
| u16 flags = 0, vid = 0; |
| u32 producer; |
| int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0; |
| struct cmd_desc_type0 *hwdesc; |
| struct vlan_ethhdr *vh; |
| |
| if (protocol == cpu_to_be16(ETH_P_8021Q)) { |
| |
| vh = (struct vlan_ethhdr *)skb->data; |
| protocol = vh->h_vlan_encapsulated_proto; |
| flags = FLAGS_VLAN_TAGGED; |
| |
| } else if (vlan_tx_tag_present(skb)) { |
| |
| flags = FLAGS_VLAN_OOB; |
| vid = vlan_tx_tag_get(skb); |
| netxen_set_tx_vlan_tci(first_desc, vid); |
| vlan_oob = 1; |
| } |
| |
| if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && |
| skb_shinfo(skb)->gso_size > 0) { |
| |
| hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); |
| |
| first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); |
| first_desc->total_hdr_length = hdr_len; |
| if (vlan_oob) { |
| first_desc->total_hdr_length += VLAN_HLEN; |
| first_desc->tcp_hdr_offset = VLAN_HLEN; |
| first_desc->ip_hdr_offset = VLAN_HLEN; |
| /* Only in case of TSO on vlan device */ |
| flags |= FLAGS_VLAN_TAGGED; |
| } |
| |
| opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ? |
| TX_TCP_LSO6 : TX_TCP_LSO; |
| tso = 1; |
| |
| } else if (skb->ip_summed == CHECKSUM_PARTIAL) { |
| u8 l4proto; |
| |
| if (protocol == cpu_to_be16(ETH_P_IP)) { |
| l4proto = ip_hdr(skb)->protocol; |
| |
| if (l4proto == IPPROTO_TCP) |
| opcode = TX_TCP_PKT; |
| else if(l4proto == IPPROTO_UDP) |
| opcode = TX_UDP_PKT; |
| } else if (protocol == cpu_to_be16(ETH_P_IPV6)) { |
| l4proto = ipv6_hdr(skb)->nexthdr; |
| |
| if (l4proto == IPPROTO_TCP) |
| opcode = TX_TCPV6_PKT; |
| else if(l4proto == IPPROTO_UDP) |
| opcode = TX_UDPV6_PKT; |
| } |
| } |
| |
| first_desc->tcp_hdr_offset += skb_transport_offset(skb); |
| first_desc->ip_hdr_offset += skb_network_offset(skb); |
| netxen_set_tx_flags_opcode(first_desc, flags, opcode); |
| |
| if (!tso) |
| return; |
| |
| /* For LSO, we need to copy the MAC/IP/TCP headers into |
| * the descriptor ring |
| */ |
| producer = tx_ring->producer; |
| copied = 0; |
| offset = 2; |
| |
| if (vlan_oob) { |
| /* Create a TSO vlan header template for firmware */ |
| |
| hwdesc = &tx_ring->desc_head[producer]; |
| tx_ring->cmd_buf_arr[producer].skb = NULL; |
| |
| copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, |
| hdr_len + VLAN_HLEN); |
| |
| vh = (struct vlan_ethhdr *)((char *)hwdesc + 2); |
| skb_copy_from_linear_data(skb, vh, 12); |
| vh->h_vlan_proto = htons(ETH_P_8021Q); |
| vh->h_vlan_TCI = htons(vid); |
| skb_copy_from_linear_data_offset(skb, 12, |
| (char *)vh + 16, copy_len - 16); |
| |
| copied = copy_len - VLAN_HLEN; |
| offset = 0; |
| |
| producer = get_next_index(producer, tx_ring->num_desc); |
| } |
| |
| while (copied < hdr_len) { |
| |
| copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, |
| (hdr_len - copied)); |
| |
| hwdesc = &tx_ring->desc_head[producer]; |
| tx_ring->cmd_buf_arr[producer].skb = NULL; |
| |
| skb_copy_from_linear_data_offset(skb, copied, |
| (char *)hwdesc + offset, copy_len); |
| |
| copied += copy_len; |
| offset = 0; |
| |
| producer = get_next_index(producer, tx_ring->num_desc); |
| } |
| |
| tx_ring->producer = producer; |
| barrier(); |
| } |
| |
| static int |
| netxen_map_tx_skb(struct pci_dev *pdev, |
| struct sk_buff *skb, struct netxen_cmd_buffer *pbuf) |
| { |
| struct netxen_skb_frag *nf; |
| struct skb_frag_struct *frag; |
| int i, nr_frags; |
| dma_addr_t map; |
| |
| nr_frags = skb_shinfo(skb)->nr_frags; |
| nf = &pbuf->frag_array[0]; |
| |
| map = pci_map_single(pdev, skb->data, |
| skb_headlen(skb), PCI_DMA_TODEVICE); |
| if (pci_dma_mapping_error(pdev, map)) |
| goto out_err; |
| |
| nf->dma = map; |
| nf->length = skb_headlen(skb); |
| |
| for (i = 0; i < nr_frags; i++) { |
| frag = &skb_shinfo(skb)->frags[i]; |
| nf = &pbuf->frag_array[i+1]; |
| |
| map = pci_map_page(pdev, frag->page, frag->page_offset, |
| frag->size, PCI_DMA_TODEVICE); |
| if (pci_dma_mapping_error(pdev, map)) |
| goto unwind; |
| |
| nf->dma = map; |
| nf->length = frag->size; |
| } |
| |
| return 0; |
| |
| unwind: |
| while (--i >= 0) { |
| nf = &pbuf->frag_array[i+1]; |
| pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); |
| } |
| |
| nf = &pbuf->frag_array[0]; |
| pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); |
| |
| out_err: |
| return -ENOMEM; |
| } |
| |
| static inline void |
| netxen_clear_cmddesc(u64 *desc) |
| { |
| desc[0] = 0ULL; |
| desc[2] = 0ULL; |
| } |
| |
| static netdev_tx_t |
| netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) |
| { |
| struct netxen_adapter *adapter = netdev_priv(netdev); |
| struct nx_host_tx_ring *tx_ring = adapter->tx_ring; |
| struct netxen_cmd_buffer *pbuf; |
| struct netxen_skb_frag *buffrag; |
| struct cmd_desc_type0 *hwdesc, *first_desc; |
| struct pci_dev *pdev; |
| int i, k; |
| |
| u32 producer; |
| int frag_count, no_of_desc; |
| u32 num_txd = tx_ring->num_desc; |
| |
| frag_count = skb_shinfo(skb)->nr_frags + 1; |
| |
| /* 4 fragments per cmd des */ |
| no_of_desc = (frag_count + 3) >> 2; |
| |
| if (unlikely(no_of_desc + 2 > netxen_tx_avail(tx_ring))) { |
| netif_stop_queue(netdev); |
| return NETDEV_TX_BUSY; |
| } |
| |
| producer = tx_ring->producer; |
| pbuf = &tx_ring->cmd_buf_arr[producer]; |
| |
| pdev = adapter->pdev; |
| |
| if (netxen_map_tx_skb(pdev, skb, pbuf)) |
| goto drop_packet; |
| |
| pbuf->skb = skb; |
| pbuf->frag_count = frag_count; |
| |
| first_desc = hwdesc = &tx_ring->desc_head[producer]; |
| netxen_clear_cmddesc((u64 *)hwdesc); |
| |
| netxen_set_tx_frags_len(first_desc, frag_count, skb->len); |
| netxen_set_tx_port(first_desc, adapter->portnum); |
| |
| for (i = 0; i < frag_count; i++) { |
| |
| k = i % 4; |
| |
| if ((k == 0) && (i > 0)) { |
| /* move to next desc.*/ |
| producer = get_next_index(producer, num_txd); |
| hwdesc = &tx_ring->desc_head[producer]; |
| netxen_clear_cmddesc((u64 *)hwdesc); |
| tx_ring->cmd_buf_arr[producer].skb = NULL; |
| } |
| |
| buffrag = &pbuf->frag_array[i]; |
| |
| hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length); |
| switch (k) { |
| case 0: |
| hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); |
| break; |
| case 1: |
| hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma); |
| break; |
| case 2: |
| hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma); |
| break; |
| case 3: |
| hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma); |
| break; |
| } |
| } |
| |
| tx_ring->producer = get_next_index(producer, num_txd); |
| |
| netxen_tso_check(netdev, tx_ring, first_desc, skb); |
| |
| netxen_nic_update_cmd_producer(adapter, tx_ring); |
| |
| adapter->stats.txbytes += skb->len; |
| adapter->stats.xmitcalled++; |
| |
| return NETDEV_TX_OK; |
| |
| drop_packet: |
| adapter->stats.txdropped++; |
| dev_kfree_skb_any(skb); |
| return NETDEV_TX_OK; |
| } |
| |
| static int netxen_nic_check_temp(struct netxen_adapter *adapter) |
| { |
| struct net_device *netdev = adapter->netdev; |
| uint32_t temp, temp_state, temp_val; |
| int rv = 0; |
| |
| temp = NXRD32(adapter, CRB_TEMP_STATE); |
| |
| temp_state = nx_get_temp_state(temp); |
| temp_val = nx_get_temp_val(temp); |
| |
| if (temp_state == NX_TEMP_PANIC) { |
| printk(KERN_ALERT |
| "%s: Device temperature %d degrees C exceeds" |
| " maximum allowed. Hardware has been shut down.\n", |
| netdev->name, temp_val); |
| rv = 1; |
| } else if (temp_state == NX_TEMP_WARN) { |
| if (adapter->temp == NX_TEMP_NORMAL) { |
| printk(KERN_ALERT |
| "%s: Device temperature %d degrees C " |
| "exceeds operating range." |
| " Immediate action needed.\n", |
| netdev->name, temp_val); |
| } |
| } else { |
| if (adapter->temp == NX_TEMP_WARN) { |
| printk(KERN_INFO |
| "%s: Device temperature is now %d degrees C" |
| " in normal range.\n", netdev->name, |
| temp_val); |
| } |
| } |
| adapter->temp = temp_state; |
| return rv; |
| } |
| |
| void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup) |
| { |
| struct net_device *netdev = adapter->netdev; |
| |
| if (adapter->ahw.linkup && !linkup) { |
| printk(KERN_INFO "%s: %s NIC Link is down\n", |
| netxen_nic_driver_name, netdev->name); |
| adapter->ahw.linkup = 0; |
| if (netif_running(netdev)) { |
| netif_carrier_off(netdev); |
| netif_stop_queue(netdev); |
| } |
| adapter->link_changed = !adapter->has_link_events; |
| } else if (!adapter->ahw.linkup && linkup) { |
| printk(KERN_INFO "%s: %s NIC Link is up\n", |
| netxen_nic_driver_name, netdev->name); |
| adapter->ahw.linkup = 1; |
| if (netif_running(netdev)) { |
| netif_carrier_on(netdev); |
| netif_wake_queue(netdev); |
| } |
| adapter->link_changed = !adapter->has_link_events; |
| } |
| } |
| |
| static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) |
| { |
| u32 val, port, linkup; |
| |
| port = adapter->physical_port; |
| |
| if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
| val = NXRD32(adapter, CRB_XG_STATE_P3); |
| val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); |
| linkup = (val == XG_LINK_UP_P3); |
| } else { |
| val = NXRD32(adapter, CRB_XG_STATE); |
| if (adapter->ahw.port_type == NETXEN_NIC_GBE) |
| linkup = (val >> port) & 1; |
| else { |
| val = (val >> port*8) & 0xff; |
| linkup = (val == XG_LINK_UP); |
| } |
| } |
| |
| netxen_advert_link_change(adapter, linkup); |
| } |
| |
| static void netxen_tx_timeout(struct net_device *netdev) |
| { |
| struct netxen_adapter *adapter = netdev_priv(netdev); |
| |
| if (test_bit(__NX_RESETTING, &adapter->state)) |
| return; |
| |
| dev_err(&netdev->dev, "transmit timeout, resetting.\n"); |
| schedule_work(&adapter->tx_timeout_task); |
| } |
| |
| static void netxen_tx_timeout_task(struct work_struct *work) |
| { |
| struct netxen_adapter *adapter = |
| container_of(work, struct netxen_adapter, tx_timeout_task); |
| |
| if (!netif_running(adapter->netdev)) |
| return; |
| |
| if (test_and_set_bit(__NX_RESETTING, &adapter->state)) |
| return; |
| |
| if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS) |
| goto request_reset; |
| |
| if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { |
| /* try to scrub interrupt */ |
| netxen_napi_disable(adapter); |
| |
| adapter->netdev->trans_start = jiffies; |
| |
| netxen_napi_enable(adapter); |
| |
| netif_wake_queue(adapter->netdev); |
| |
| clear_bit(__NX_RESETTING, &adapter->state); |
| |
| } else { |
| clear_bit(__NX_RESETTING, &adapter->state); |
| if (!netxen_nic_reset_context(adapter)) { |
| adapter->netdev->trans_start = jiffies; |
| return; |
| } |
| |
| /* context reset failed, fall through for fw reset */ |
| } |
| |
| request_reset: |
| adapter->need_fw_reset = 1; |
| } |
| |
| struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev) |
| { |
| struct netxen_adapter *adapter = netdev_priv(netdev); |
| struct net_device_stats *stats = &netdev->stats; |
| |
| memset(stats, 0, sizeof(*stats)); |
| |
| stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts; |
| stats->tx_packets = adapter->stats.xmitfinished; |
| stats->rx_bytes = adapter->stats.rxbytes; |
| stats->tx_bytes = adapter->stats.txbytes; |
| stats->rx_dropped = adapter->stats.rxdropped; |
| stats->tx_dropped = adapter->stats.txdropped; |
| |
| return stats; |
| } |
| |
| static irqreturn_t netxen_intr(int irq, void *data) |
| { |
| struct nx_host_sds_ring *sds_ring = data; |
| struct netxen_adapter *adapter = sds_ring->adapter; |
| u32 status = 0; |
| |
| status = readl(adapter->isr_int_vec); |
| |
| if (!(status & adapter->int_vec_bit)) |
| return IRQ_NONE; |
| |
| if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { |
| /* check interrupt state machine, to be sure */ |
| status = readl(adapter->crb_int_state_reg); |
| if (!ISR_LEGACY_INT_TRIGGERED(status)) |
| return IRQ_NONE; |
| |
| } else { |
| unsigned long our_int = 0; |
| |
| our_int = readl(adapter->crb_int_state_reg); |
| |
| /* not our interrupt */ |
| if (!test_and_clear_bit((7 + adapter->portnum), &our_int)) |
| return IRQ_NONE; |
| |
| /* claim interrupt */ |
| writel((our_int & 0xffffffff), adapter->crb_int_state_reg); |
| |
| /* clear interrupt */ |
| netxen_nic_disable_int(sds_ring); |
| } |
| |
| writel(0xffffffff, adapter->tgt_status_reg); |
| /* read twice to ensure write is flushed */ |
| readl(adapter->isr_int_vec); |
| readl(adapter->isr_int_vec); |
| |
| napi_schedule(&sds_ring->napi); |
| |
| return IRQ_HANDLED; |
| } |
| |
| static irqreturn_t netxen_msi_intr(int irq, void *data) |
| { |
| struct nx_host_sds_ring *sds_ring = data; |
| struct netxen_adapter *adapter = sds_ring->adapter; |
| |
| /* clear interrupt */ |
| writel(0xffffffff, adapter->tgt_status_reg); |
| |
| napi_schedule(&sds_ring->napi); |
| return IRQ_HANDLED; |
| } |
| |
| static irqreturn_t netxen_msix_intr(int irq, void *data) |
| { |
| struct nx_host_sds_ring *sds_ring = data; |
| |
| napi_schedule(&sds_ring->napi); |
| return IRQ_HANDLED; |
| } |
| |
| static int netxen_nic_poll(struct napi_struct *napi, int budget) |
| { |
| struct nx_host_sds_ring *sds_ring = |
| container_of(napi, struct nx_host_sds_ring, napi); |
| |
| struct netxen_adapter *adapter = sds_ring->adapter; |
| |
| int tx_complete; |
| int work_done; |
| |
| tx_complete = netxen_process_cmd_ring(adapter); |
| |
| work_done = netxen_process_rcv_ring(sds_ring, budget); |
| |
| if ((work_done < budget) && tx_complete) { |
| napi_complete(&sds_ring->napi); |
| if (netif_running(adapter->netdev)) |
| netxen_nic_enable_int(sds_ring); |
| } |
| |
| return work_done; |
| } |
| |
| #ifdef CONFIG_NET_POLL_CONTROLLER |
| static void netxen_nic_poll_controller(struct net_device *netdev) |
| { |
| struct netxen_adapter *adapter = netdev_priv(netdev); |
| disable_irq(adapter->irq); |
| netxen_intr(adapter->irq, adapter); |
| enable_irq(adapter->irq); |
| } |
| #endif |
| |
| static int |
| nx_incr_dev_ref_cnt(struct netxen_adapter *adapter) |
| { |
| int count; |
| if (netxen_api_lock(adapter)) |
| return -EIO; |
| |
| count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); |
| |
| NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); |
| |
| netxen_api_unlock(adapter); |
| return count; |
| } |
| |
| static int |
| nx_decr_dev_ref_cnt(struct netxen_adapter *adapter) |
| { |
| int count; |
| if (netxen_api_lock(adapter)) |
| return -EIO; |
| |
| count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); |
| WARN_ON(count == 0); |
| |
| NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); |
| |
| if (count == 0) |
| NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); |
| |
| netxen_api_unlock(adapter); |
| return count; |
| } |
| |
| static void |
| nx_dev_request_reset(struct netxen_adapter *adapter) |
| { |
| u32 state; |
| |
| if (netxen_api_lock(adapter)) |
| return; |
| |
| state = NXRD32(adapter, NX_CRB_DEV_STATE); |
| |
| if (state != NX_DEV_INITALIZING) |
| NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET); |
| |
| netxen_api_unlock(adapter); |
| } |
| |
| static int |
| netxen_can_start_firmware(struct netxen_adapter *adapter) |
| { |
| int count; |
| int can_start = 0; |
| |
| if (netxen_api_lock(adapter)) |
| return 0; |
| |
| count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); |
| |
| if ((count < 0) || (count >= NX_MAX_PCI_FUNC)) |
| count = 0; |
| |
| if (count == 0) { |
| can_start = 1; |
| NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_INITALIZING); |
| } |
| |
| NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); |
| |
| netxen_api_unlock(adapter); |
| |
| return can_start; |
| } |
| |
| static void |
| netxen_schedule_work(struct netxen_adapter *adapter, |
| work_func_t func, int delay) |
| { |
| INIT_DELAYED_WORK(&adapter->fw_work, func); |
| schedule_delayed_work(&adapter->fw_work, delay); |
| } |
| |
| static void |
| netxen_cancel_fw_work(struct netxen_adapter *adapter) |
| { |
| while (test_and_set_bit(__NX_RESETTING, &adapter->state)) |
| msleep(10); |
| |
| cancel_delayed_work_sync(&adapter->fw_work); |
| } |
| |
| static void |
| netxen_attach_work(struct work_struct *work) |
| { |
| struct netxen_adapter *adapter = container_of(work, |
| struct netxen_adapter, fw_work.work); |
| struct net_device *netdev = adapter->netdev; |
| int err = 0; |
| |
| if (netif_running(netdev)) { |
| err = netxen_nic_attach(adapter); |
| if (err) |
| goto done; |
| |
| err = netxen_nic_up(adapter, netdev); |
| if (err) { |
| netxen_nic_detach(adapter); |
| goto done; |
| } |
| |
| netxen_config_indev_addr(netdev, NETDEV_UP); |
| } |
| |
| netif_device_attach(netdev); |
| |
| done: |
| adapter->fw_fail_cnt = 0; |
| clear_bit(__NX_RESETTING, &adapter->state); |
| netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); |
| } |
| |
| static void |
| netxen_fwinit_work(struct work_struct *work) |
| { |
| struct netxen_adapter *adapter = container_of(work, |
| struct netxen_adapter, fw_work.work); |
| int dev_state; |
| |
| dev_state = NXRD32(adapter, NX_CRB_DEV_STATE); |
| |
| switch (dev_state) { |
| case NX_DEV_COLD: |
| case NX_DEV_READY: |
| if (!netxen_start_firmware(adapter)) { |
| netxen_schedule_work(adapter, netxen_attach_work, 0); |
| return; |
| } |
| break; |
| |
| case NX_DEV_INITALIZING: |
| if (++adapter->fw_wait_cnt < FW_POLL_THRESH) { |
| netxen_schedule_work(adapter, |
| netxen_fwinit_work, 2 * FW_POLL_DELAY); |
| return; |
| } |
| break; |
| |
| case NX_DEV_FAILED: |
| default: |
| break; |
| } |
| |
| nx_incr_dev_ref_cnt(adapter); |
| clear_bit(__NX_RESETTING, &adapter->state); |
| } |
| |
| static void |
| netxen_detach_work(struct work_struct *work) |
| { |
| struct netxen_adapter *adapter = container_of(work, |
| struct netxen_adapter, fw_work.work); |
| struct net_device *netdev = adapter->netdev; |
| int ref_cnt, delay; |
| u32 status; |
| |
| netif_device_detach(netdev); |
| |
| if (netif_running(netdev)) |
| netxen_nic_down(adapter, netdev); |
| |
| netxen_nic_detach(adapter); |
| |
| status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); |
| |
| ref_cnt = nx_decr_dev_ref_cnt(adapter); |
| |
| if (status & NX_RCODE_FATAL_ERROR) |
| return; |
| |
| if (adapter->temp == NX_TEMP_PANIC) |
| return; |
| |
| delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY); |
| |
| adapter->fw_wait_cnt = 0; |
| netxen_schedule_work(adapter, netxen_fwinit_work, delay); |
| } |
| |
| static int |
| netxen_check_health(struct netxen_adapter *adapter) |
| { |
| u32 state, heartbit; |
| struct net_device *netdev = adapter->netdev; |
| |
| if (netxen_nic_check_temp(adapter)) |
| goto detach; |
| |
| if (adapter->need_fw_reset) { |
| nx_dev_request_reset(adapter); |
| goto detach; |
| } |
| |
| state = NXRD32(adapter, NX_CRB_DEV_STATE); |
| if (state == NX_DEV_NEED_RESET) |
| goto detach; |
| |
| if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) |
| return 0; |
| |
| heartbit = NXRD32(adapter, NETXEN_PEG_ALIVE_COUNTER); |
| if (heartbit != adapter->heartbit) { |
| adapter->heartbit = heartbit; |
| adapter->fw_fail_cnt = 0; |
| return 0; |
| } |
| |
| if (++adapter->fw_fail_cnt < FW_FAIL_THRESH) |
| return 0; |
| |
| clear_bit(__NX_FW_ATTACHED, &adapter->state); |
| |
| dev_info(&netdev->dev, "firmware hang detected\n"); |
| |
| detach: |
| if (!test_and_set_bit(__NX_RESETTING, &adapter->state)) |
| netxen_schedule_work(adapter, netxen_detach_work, 0); |
| return 1; |
| } |
| |
| static void |
| netxen_fw_poll_work(struct work_struct *work) |
| { |
| struct netxen_adapter *adapter = container_of(work, |
| struct netxen_adapter, fw_work.work); |
| |
| if (test_bit(__NX_RESETTING, &adapter->state)) |
| goto reschedule; |
| |
| if (test_bit(__NX_DEV_UP, &adapter->state)) { |
| if (!adapter->has_link_events) { |
| |
| netxen_nic_handle_phy_intr(adapter); |
| |
| if (adapter->link_changed) |
| netxen_nic_set_link_parameters(adapter); |
| } |
| } |
| |
| if (netxen_check_health(adapter)) |
| return; |
| |
| reschedule: |
| netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); |
| } |
| |
| static ssize_t |
| netxen_store_bridged_mode(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t len) |
| { |
| struct net_device *net = to_net_dev(dev); |
| struct netxen_adapter *adapter = netdev_priv(net); |
| unsigned long new; |
| int ret = -EINVAL; |
| |
| if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG)) |
| goto err_out; |
| |
| if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) |
| goto err_out; |
| |
| if (strict_strtoul(buf, 2, &new)) |
| goto err_out; |
| |
| if (!netxen_config_bridged_mode(adapter, !!new)) |
| ret = len; |
| |
| err_out: |
| return ret; |
| } |
| |
| static ssize_t |
| netxen_show_bridged_mode(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct net_device *net = to_net_dev(dev); |
| struct netxen_adapter *adapter; |
| int bridged_mode = 0; |
| |
| adapter = netdev_priv(net); |
| |
| if (adapter->capabilities & NX_FW_CAPABILITY_BDG) |
| bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED); |
| |
| return sprintf(buf, "%d\n", bridged_mode); |
| } |
| |
| static struct device_attribute dev_attr_bridged_mode = { |
| .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)}, |
| .show = netxen_show_bridged_mode, |
| .store = netxen_store_bridged_mode, |
| }; |
| |
| static ssize_t |
| netxen_store_diag_mode(struct device *dev, |
| struct device_attribute *attr, const char *buf, size_t len) |
| { |
| struct netxen_adapter *adapter = dev_get_drvdata(dev); |
| unsigned long new; |
| |
| if (strict_strtoul(buf, 2, &new)) |
| return -EINVAL; |
| |
| if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) |
| adapter->flags ^= NETXEN_NIC_DIAG_ENABLED; |
| |
| return len; |
| } |
| |
| static ssize_t |
| netxen_show_diag_mode(struct device *dev, |
| struct device_attribute *attr, char *buf) |
| { |
| struct netxen_adapter *adapter = dev_get_drvdata(dev); |
| |
| return sprintf(buf, "%d\n", |
| !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)); |
| } |
| |
| static struct device_attribute dev_attr_diag_mode = { |
| .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)}, |
| .show = netxen_show_diag_mode, |
| .store = netxen_store_diag_mode, |
| }; |
| |
| static int |
| netxen_sysfs_validate_crb(struct netxen_adapter *adapter, |
| loff_t offset, size_t size) |
| { |
| if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) |
| return -EIO; |
| |
| if ((size != 4) || (offset & 0x3)) |
| return -EINVAL; |
| |
| if (offset < NETXEN_PCI_CRBSPACE) |
| return -EINVAL; |
| |
| return 0; |
| } |
| |
| static ssize_t |
| netxen_sysfs_read_crb(struct kobject *kobj, struct bin_attribute *attr, |
| char *buf, loff_t offset, size_t size) |
| { |
| struct device *dev = container_of(kobj, struct device, kobj); |
| struct netxen_adapter *adapter = dev_get_drvdata(dev); |
| u32 data; |
| int ret; |
| |
| ret = netxen_sysfs_validate_crb(adapter, offset, size); |
| if (ret != 0) |
| return ret; |
| |
| data = NXRD32(adapter, offset); |
| memcpy(buf, &data, size); |
| return size; |
| } |
| |
| static ssize_t |
| netxen_sysfs_write_crb(struct kobject *kobj, struct bin_attribute *attr, |
| char *buf, loff_t offset, size_t size) |
| { |
| struct device *dev = container_of(kobj, struct device, kobj); |
| struct netxen_adapter *adapter = dev_get_drvdata(dev); |
| u32 data; |
| int ret; |
| |
| ret = netxen_sysfs_validate_crb(adapter, offset, size); |
| if (ret != 0) |
| return ret; |
| |
| memcpy(&data, buf, size); |
| NXWR32(adapter, offset, data); |
| return size; |
| } |
| |
| static int |
| netxen_sysfs_validate_mem(struct netxen_adapter *adapter, |
| loff_t offset, size_t size) |
| { |
| if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) |
| return -EIO; |
| |
| if ((size != 8) || (offset & 0x7)) |
| return -EIO; |
| |
| return 0; |
| } |
| |
| static ssize_t |
| netxen_sysfs_read_mem(struct kobject *kobj, struct bin_attribute *attr, |
| char *buf, loff_t offset, size_t size) |
| { |
| struct device *dev = container_of(kobj, struct device, kobj); |
| struct netxen_adapter *adapter = dev_get_drvdata(dev); |
| u64 data; |
| int ret; |
| |
| ret = netxen_sysfs_validate_mem(adapter, offset, size); |
| if (ret != 0) |
| return ret; |
| |
| if (adapter->pci_mem_read(adapter, offset, &data)) |
| return -EIO; |
| |
| memcpy(buf, &data, size); |
| |
| return size; |
| } |
| |
| ssize_t netxen_sysfs_write_mem(struct kobject *kobj, |
| struct bin_attribute *attr, char *buf, |
| loff_t offset, size_t size) |
| { |
| struct device *dev = container_of(kobj, struct device, kobj); |
| struct netxen_adapter *adapter = dev_get_drvdata(dev); |
| u64 data; |
| int ret; |
| |
| ret = netxen_sysfs_validate_mem(adapter, offset, size); |
| if (ret != 0) |
| return ret; |
| |
| memcpy(&data, buf, size); |
| |
| if (adapter->pci_mem_write(adapter, offset, data)) |
| return -EIO; |
| |
| return size; |
| } |
| |
| |
| static struct bin_attribute bin_attr_crb = { |
| .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)}, |
| .size = 0, |
| .read = netxen_sysfs_read_crb, |
| .write = netxen_sysfs_write_crb, |
| }; |
| |
| static struct bin_attribute bin_attr_mem = { |
| .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)}, |
| .size = 0, |
| .read = netxen_sysfs_read_mem, |
| .write = netxen_sysfs_write_mem, |
| }; |
| |
| static void |
| netxen_create_sysfs_entries(struct netxen_adapter *adapter) |
| { |
| struct net_device *netdev = adapter->netdev; |
| struct device *dev = &netdev->dev; |
| |
| if (adapter->capabilities & NX_FW_CAPABILITY_BDG) { |
| /* bridged_mode control */ |
| if (device_create_file(dev, &dev_attr_bridged_mode)) { |
| dev_warn(&netdev->dev, |
| "failed to create bridged_mode sysfs entry\n"); |
| } |
| } |
| } |
| |
| static void |
| netxen_remove_sysfs_entries(struct netxen_adapter *adapter) |
| { |
| struct net_device *netdev = adapter->netdev; |
| struct device *dev = &netdev->dev; |
| |
| if (adapter->capabilities & NX_FW_CAPABILITY_BDG) |
| device_remove_file(dev, &dev_attr_bridged_mode); |
| } |
| |
| static void |
| netxen_create_diag_entries(struct netxen_adapter *adapter) |
| { |
| struct pci_dev *pdev = adapter->pdev; |
| struct device *dev; |
| |
| dev = &pdev->dev; |
| if (device_create_file(dev, &dev_attr_diag_mode)) |
| dev_info(dev, "failed to create diag_mode sysfs entry\n"); |
| if (device_create_bin_file(dev, &bin_attr_crb)) |
| dev_info(dev, "failed to create crb sysfs entry\n"); |
| if (device_create_bin_file(dev, &bin_attr_mem)) |
| dev_info(dev, "failed to create mem sysfs entry\n"); |
| } |
| |
| |
| static void |
| netxen_remove_diag_entries(struct netxen_adapter *adapter) |
| { |
| struct pci_dev *pdev = adapter->pdev; |
| struct device *dev = &pdev->dev; |
| |
| device_remove_file(dev, &dev_attr_diag_mode); |
| device_remove_bin_file(dev, &bin_attr_crb); |
| device_remove_bin_file(dev, &bin_attr_mem); |
| } |
| |
| #ifdef CONFIG_INET |
| |
| #define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops) |
| |
| static int |
| netxen_destip_supported(struct netxen_adapter *adapter) |
| { |
| if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) |
| return 0; |
| |
| if (adapter->ahw.cut_through) |
| return 0; |
| |
| return 1; |
| } |
| |
| static void |
| netxen_config_indev_addr(struct net_device *dev, unsigned long event) |
| { |
| struct in_device *indev; |
| struct netxen_adapter *adapter = netdev_priv(dev); |
| |
| if (!netxen_destip_supported(adapter)) |
| return; |
| |
| indev = in_dev_get(dev); |
| if (!indev) |
| return; |
| |
| for_ifa(indev) { |
| switch (event) { |
| case NETDEV_UP: |
| netxen_config_ipaddr(adapter, |
| ifa->ifa_address, NX_IP_UP); |
| break; |
| case NETDEV_DOWN: |
| netxen_config_ipaddr(adapter, |
| ifa->ifa_address, NX_IP_DOWN); |
| break; |
| default: |
| break; |
| } |
| } endfor_ifa(indev); |
| |
| in_dev_put(indev); |
| return; |
| } |
| |
| static int netxen_netdev_event(struct notifier_block *this, |
| unsigned long event, void *ptr) |
| { |
| struct netxen_adapter *adapter; |
| struct net_device *dev = (struct net_device *)ptr; |
| |
| recheck: |
| if (dev == NULL) |
| goto done; |
| |
| if (dev->priv_flags & IFF_802_1Q_VLAN) { |
| dev = vlan_dev_real_dev(dev); |
| goto recheck; |
| } |
| |
| if (!is_netxen_netdev(dev)) |
| goto done; |
| |
| adapter = netdev_priv(dev); |
| |
| if (!adapter) |
| goto done; |
| |
| if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) |
| goto done; |
| |
| netxen_config_indev_addr(dev, event); |
| done: |
| return NOTIFY_DONE; |
| } |
| |
| static int |
| netxen_inetaddr_event(struct notifier_block *this, |
| unsigned long event, void *ptr) |
| { |
| struct netxen_adapter *adapter; |
| struct net_device *dev; |
| |
| struct in_ifaddr *ifa = (struct in_ifaddr *)ptr; |
| |
| dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; |
| |
| recheck: |
| if (dev == NULL || !netif_running(dev)) |
| goto done; |
| |
| if (dev->priv_flags & IFF_802_1Q_VLAN) { |
| dev = vlan_dev_real_dev(dev); |
| goto recheck; |
| } |
| |
| if (!is_netxen_netdev(dev)) |
| goto done; |
| |
| adapter = netdev_priv(dev); |
| |
| if (!adapter || !netxen_destip_supported(adapter)) |
| goto done; |
| |
| if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) |
| goto done; |
| |
| switch (event) { |
| case NETDEV_UP: |
| netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_UP); |
| break; |
| case NETDEV_DOWN: |
| netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN); |
| break; |
| default: |
| break; |
| } |
| |
| done: |
| return NOTIFY_DONE; |
| } |
| |
| static struct notifier_block netxen_netdev_cb = { |
| .notifier_call = netxen_netdev_event, |
| }; |
| |
| static struct notifier_block netxen_inetaddr_cb = { |
| .notifier_call = netxen_inetaddr_event, |
| }; |
| #else |
| static void |
| netxen_config_indev_addr(struct net_device *dev, unsigned long event) |
| { } |
| #endif |
| |
| static struct pci_driver netxen_driver = { |
| .name = netxen_nic_driver_name, |
| .id_table = netxen_pci_tbl, |
| .probe = netxen_nic_probe, |
| .remove = __devexit_p(netxen_nic_remove), |
| #ifdef CONFIG_PM |
| .suspend = netxen_nic_suspend, |
| .resume = netxen_nic_resume, |
| #endif |
| .shutdown = netxen_nic_shutdown |
| }; |
| |
| static int __init netxen_init_module(void) |
| { |
| printk(KERN_INFO "%s\n", netxen_nic_driver_string); |
| |
| #ifdef CONFIG_INET |
| register_netdevice_notifier(&netxen_netdev_cb); |
| register_inetaddr_notifier(&netxen_inetaddr_cb); |
| #endif |
| |
| return pci_register_driver(&netxen_driver); |
| } |
| |
| module_init(netxen_init_module); |
| |
| static void __exit netxen_exit_module(void) |
| { |
| pci_unregister_driver(&netxen_driver); |
| |
| #ifdef CONFIG_INET |
| unregister_inetaddr_notifier(&netxen_inetaddr_cb); |
| unregister_netdevice_notifier(&netxen_netdev_cb); |
| #endif |
| } |
| |
| module_exit(netxen_exit_module); |