diff options
Diffstat (limited to 'drivers/net/netxen/netxen_nic_main.c')
| -rw-r--r-- | drivers/net/netxen/netxen_nic_main.c | 1462 |
1 files changed, 1072 insertions, 390 deletions
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index 28f270f5ac7..f7bdde111df 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -1,5 +1,6 @@ /* * 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 @@ -20,12 +21,6 @@ * The full GNU General Public License is included in this distribution * in the file called LICENSE. * - * Contact Information: - * info@netxen.com - * NetXen Inc, - * 18922 Forge Drive - * Cupertino, CA 95014-0701 - * */ #include <linux/vmalloc.h> @@ -33,12 +28,12 @@ #include "netxen_nic_hw.h" #include "netxen_nic.h" -#include "netxen_nic_phan_reg.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"); @@ -63,18 +58,31 @@ static int __devinit netxen_nic_probe(struct pci_dev *pdev, 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 int netxen_nic_xmit_frame(struct sk_buff *, struct net_device *); +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_watchdog(unsigned long); +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 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)), \ @@ -94,8 +102,6 @@ static struct pci_device_id netxen_pci_tbl[] __devinitdata = { MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); -static void netxen_watchdog(unsigned long); - 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 @@ -105,7 +111,7 @@ void netxen_nic_update_cmd_producer(struct netxen_adapter *adapter, struct nx_host_tx_ring *tx_ring) { - NXWR32(adapter, tx_ring->crb_cmd_producer, tx_ring->producer); + NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer); if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) { netif_stop_queue(adapter->netdev); @@ -122,7 +128,7 @@ static inline void netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter, struct nx_host_tx_ring *tx_ring) { - NXWR32(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer); + NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer); } static uint32_t msi_tgt_status[8] = { @@ -138,18 +144,17 @@ static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring) { struct netxen_adapter *adapter = sds_ring->adapter; - NXWR32(adapter, sds_ring->crb_intr_mask, 0); + 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; - NXWR32(adapter, sds_ring->crb_intr_mask, 0x1); + NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1); if (!NETXEN_IS_MSI_FAMILY(adapter)) - adapter->pci_write_immediate(adapter, - adapter->legacy_intr.tgt_mask_reg, 0xfbff); + NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff); } static int @@ -179,7 +184,7 @@ netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev) struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) - return 1; + return -ENOMEM; for (ring = 0; ring < adapter->max_sds_rings; ring++) { sds_ring = &recv_ctx->sds_rings[ring]; @@ -308,36 +313,6 @@ err_out: return err; } -static void netxen_check_options(struct netxen_adapter *adapter) -{ - if (adapter->ahw.port_type == NETXEN_NIC_XGBE) - adapter->num_rxd = MAX_RCV_DESCRIPTORS_10G; - else if (adapter->ahw.port_type == NETXEN_NIC_GBE) - adapter->num_rxd = MAX_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_HOST; - adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS; - adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS; - - return; -} - static int netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) { @@ -537,10 +512,22 @@ netxen_setup_intr(struct netxen_adapter *adapter) legacy_intrp = &legacy_intr[adapter->ahw.pci_func]; else legacy_intrp = &legacy_intr[0]; - adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit; - adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg; - adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg; - adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg; + + 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); @@ -567,8 +554,8 @@ netxen_setup_intr(struct netxen_adapter *adapter) if (use_msi && !pci_enable_msi(pdev)) { adapter->flags |= NETXEN_NIC_MSI_ENABLED; - adapter->msi_tgt_status = - msi_tgt_status[adapter->ahw.pci_func]; + 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; @@ -628,14 +615,6 @@ netxen_setup_pci_map(struct netxen_adapter *adapter) mem_len = pci_resource_len(pdev, 0); pci_len0 = 0; - adapter->hw_write_wx = netxen_nic_hw_write_wx_128M; - adapter->hw_read_wx = netxen_nic_hw_read_wx_128M; - adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M; - adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M; - adapter->pci_set_window = netxen_nic_pci_set_window_128M; - adapter->pci_mem_read = netxen_nic_pci_mem_read_128M; - adapter->pci_mem_write = netxen_nic_pci_mem_write_128M; - /* 128 Meg of memory */ if (mem_len == NETXEN_PCI_128MB_SIZE) { mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); @@ -648,14 +627,6 @@ netxen_setup_pci_map(struct netxen_adapter *adapter) 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) { - adapter->hw_write_wx = netxen_nic_hw_write_wx_2M; - adapter->hw_read_wx = netxen_nic_hw_read_wx_2M; - adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M; - adapter->pci_write_immediate = - netxen_nic_pci_write_immediate_2M; - adapter->pci_set_window = netxen_nic_pci_set_window_2M; - adapter->pci_mem_read = netxen_nic_pci_mem_read_2M; - adapter->pci_mem_write = netxen_nic_pci_mem_write_2M; mem_ptr0 = pci_ioremap_bar(pdev, 0); if (mem_ptr0 == NULL) { @@ -667,9 +638,10 @@ netxen_setup_pci_map(struct netxen_adapter *adapter) adapter->ahw.ddr_mn_window = 0; adapter->ahw.qdr_sn_window = 0; - adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW + - (pci_func * 0x20); - adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW; + adapter->ahw.mn_win_crb = NETXEN_PCI_CRBSPACE + + 0x100000 + PCIX_MN_WINDOW + (pci_func * 0x20); + adapter->ahw.ms_win_crb = NETXEN_PCI_CRBSPACE + + 0x100000 + PCIX_SN_WINDOW; if (pci_func < 4) adapter->ahw.ms_win_crb += (pci_func * 0x20); else @@ -679,6 +651,8 @@ netxen_setup_pci_map(struct netxen_adapter *adapter) return -EIO; } + netxen_setup_hwops(adapter); + dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); adapter->ahw.pci_base0 = mem_ptr0; @@ -717,20 +691,111 @@ err_out: 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 request_fw) +netxen_start_firmware(struct netxen_adapter *adapter) { int val, err, first_boot; struct pci_dev *pdev = adapter->pdev; - int first_driver = 0; - - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) - first_driver = (adapter->portnum == 0); - else - first_driver = (adapter->ahw.pci_func == 0); + /* required for NX2031 dummy dma */ + err = nx_set_dma_mask(adapter); + if (err) + return err; - if (!first_driver) + if (!netxen_can_start_firmware(adapter)) goto wait_init; first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); @@ -741,12 +806,13 @@ netxen_start_firmware(struct netxen_adapter *adapter, int request_fw) return err; } - if (request_fw) - netxen_request_firmware(adapter); + netxen_request_firmware(adapter); err = netxen_need_fw_reset(adapter); - if (err <= 0) - return err; + if (err < 0) + goto err_out; + if (err == 0) + goto ready; if (first_boot != 0x55555555) { NXWR32(adapter, CRB_CMDPEG_STATE, 0); @@ -755,10 +821,17 @@ netxen_start_firmware(struct netxen_adapter *adapter, int request_fw) } 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); - netxen_load_firmware(adapter); + err = netxen_load_firmware(adapter); + if (err) + goto err_out; + + netxen_release_firmware(adapter); if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { @@ -770,9 +843,9 @@ netxen_start_firmware(struct netxen_adapter *adapter, int request_fw) } - err = netxen_initialize_adapter_offload(adapter); + err = netxen_init_dummy_dma(adapter); if (err) - return err; + goto err_out; /* * Tell the hardware our version number. @@ -782,15 +855,28 @@ netxen_start_firmware(struct netxen_adapter *adapter, int request_fw) | (_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_adapter_offload(adapter); - return err; + netxen_free_dummy_dma(adapter); + goto err_out; } - return 0; + 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 @@ -840,11 +926,28 @@ netxen_nic_free_irq(struct netxen_adapter *adapter) } } +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", @@ -862,6 +965,12 @@ netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) 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) @@ -869,14 +978,18 @@ netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) else netxen_nic_set_link_parameters(adapter); - mod_timer(&adapter->watchdog_timer, jiffies); - + 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); @@ -887,12 +1000,12 @@ netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) 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); - - del_timer_sync(&adapter->watchdog_timer); } @@ -905,6 +1018,9 @@ netxen_nic_attach(struct netxen_adapter *adapter) 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; @@ -913,11 +1029,6 @@ netxen_nic_attach(struct netxen_adapter *adapter) if (err) return err; - if (adapter->fw_major < 4) - adapter->max_rds_rings = 3; - else - adapter->max_rds_rings = 2; - err = netxen_alloc_sw_resources(adapter); if (err) { printk(KERN_ERR "%s: Error in setting sw resources\n", @@ -925,8 +1036,6 @@ netxen_nic_attach(struct netxen_adapter *adapter) return err; } - netxen_nic_clear_stats(adapter); - err = netxen_alloc_hw_resources(adapter); if (err) { printk(KERN_ERR "%s: Error in setting hw resources\n", @@ -934,10 +1043,12 @@ netxen_nic_attach(struct netxen_adapter *adapter) goto err_out_free_sw; } - if (adapter->fw_major < 4) { + if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { tx_ring = adapter->tx_ring; - tx_ring->crb_cmd_producer = crb_cmd_producer[adapter->portnum]; - tx_ring->crb_cmd_consumer = crb_cmd_consumer[adapter->portnum]; + 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; @@ -958,6 +1069,11 @@ netxen_nic_attach(struct netxen_adapter *adapter) 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; @@ -972,6 +1088,11 @@ err_out_free_sw: 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); @@ -981,6 +1102,101 @@ netxen_nic_detach(struct netxen_adapter *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) { @@ -1018,9 +1234,8 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) netdev = alloc_etherdev(sizeof(struct netxen_adapter)); if(!netdev) { - printk(KERN_ERR"%s: Failed to allocate memory for the " - "device block.Check system memory resource" - " usage.\n", netxen_nic_driver_name); + dev_err(&pdev->dev, "failed to allocate net_device\n"); + err = -ENOMEM; goto err_out_free_res; } @@ -1034,10 +1249,6 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) revision_id = pdev->revision; adapter->ahw.revision_id = revision_id; - err = nx_set_dma_mask(adapter); - if (err) - goto err_out_free_netdev; - rwlock_init(&adapter->adapter_lock); spin_lock_init(&adapter->tx_clean_lock); INIT_LIST_HEAD(&adapter->mac_list); @@ -1048,43 +1259,13 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) /* This will be reset for mezz cards */ adapter->portnum = pci_func_id; - adapter->rx_csum = 1; - adapter->mc_enabled = 0; - if (NX_IS_REVISION_P3(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(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 (netxen_nic_get_board_info(adapter) != 0) { - printk("%s: Error getting board config info.\n", - netxen_nic_driver_name); - err = -EIO; + err = netxen_nic_get_board_info(adapter); + if (err) { + dev_err(&pdev->dev, "Error getting board config info.\n"); goto err_out_iounmap; } - netxen_initialize_adapter_ops(adapter); - /* Mezz cards have PCI function 0,2,3 enabled */ switch (adapter->ahw.board_type) { case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: @@ -1096,53 +1277,32 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) break; } - err = netxen_start_firmware(adapter, 1); + err = netxen_start_firmware(adapter); if (err) goto err_out_iounmap; - nx_update_dma_mask(adapter); - - netxen_nic_get_firmware_info(adapter); - /* * See if the firmware gave us a virtual-physical port mapping. */ adapter->physical_port = adapter->portnum; - if (adapter->fw_major < 4) { + if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { i = NXRD32(adapter, CRB_V2P(adapter->portnum)); if (i != 0x55555555) adapter->physical_port = i; } - netxen_check_options(adapter); + netxen_nic_clear_stats(adapter); netxen_setup_intr(adapter); - netdev->irq = adapter->msix_entries[0].vector; - - init_timer(&adapter->watchdog_timer); - adapter->watchdog_timer.function = &netxen_watchdog; - adapter->watchdog_timer.data = (unsigned long)adapter; - INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task); - INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); - - err = netxen_read_mac_addr(adapter); + err = netxen_setup_netdev(adapter, netdev); if (err) - dev_warn(&pdev->dev, "failed to read mac addr\n"); - - netif_carrier_off(netdev); - netif_stop_queue(netdev); - - if ((err = register_netdev(netdev))) { - printk(KERN_ERR "%s: register_netdev failed port #%d" - " aborting\n", netxen_nic_driver_name, - adapter->portnum); - err = -EIO; 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", @@ -1159,7 +1319,9 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) err_out_disable_msi: netxen_teardown_intr(adapter); - netxen_free_adapter_offload(adapter); + netxen_free_dummy_dma(adapter); + + nx_decr_dev_ref_cnt(adapter); err_out_iounmap: netxen_cleanup_pci_map(adapter); @@ -1187,17 +1349,20 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev) netdev = adapter->netdev; + netxen_cancel_fw_work(adapter); + unregister_netdev(netdev); - cancel_work_sync(&adapter->watchdog_task); cancel_work_sync(&adapter->tx_timeout_task); - if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { - netxen_nic_detach(adapter); - } + netxen_nic_detach(adapter); + + nx_decr_dev_ref_cnt(adapter); if (adapter->portnum == 0) - netxen_free_adapter_offload(adapter); + netxen_free_dummy_dma(adapter); + + clear_bit(__NX_RESETTING, &adapter->state); netxen_teardown_intr(adapter); @@ -1211,27 +1376,33 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev) free_netdev(netdev); } - -#ifdef CONFIG_PM -static int -netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state) +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->watchdog_task); cancel_work_sync(&adapter->tx_timeout_task); - if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) - netxen_nic_detach(adapter); + netxen_nic_detach(adapter); + + if (adapter->portnum == 0) + netxen_free_dummy_dma(adapter); + + nx_decr_dev_ref_cnt(adapter); - pci_save_state(pdev); + 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); @@ -1239,10 +1410,27 @@ netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state) } pci_disable_device(pdev); - pci_set_power_state(pdev, pci_choose_state(pdev, state)); 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) @@ -1260,7 +1448,7 @@ netxen_nic_resume(struct pci_dev *pdev) adapter->curr_window = 255; - err = netxen_start_firmware(adapter, 0); + err = netxen_start_firmware(adapter); if (err) { dev_err(&pdev->dev, "failed to start firmware\n"); return err; @@ -1269,16 +1457,24 @@ netxen_nic_resume(struct pci_dev *pdev) if (netif_running(netdev)) { err = netxen_nic_attach(adapter); if (err) - return err; + goto err_out; err = netxen_nic_up(adapter, netdev); if (err) - return err; + goto err_out_detach; netif_device_attach(netdev); + + netxen_config_indev_addr(netdev, NETDEV_UP); } - return 0; + netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); + +err_out_detach: + netxen_nic_detach(adapter); +err_out: + nx_decr_dev_ref_cnt(adapter); + return err; } #endif @@ -1290,11 +1486,9 @@ static int netxen_nic_open(struct net_device *netdev) if (adapter->driver_mismatch) return -EIO; - if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) { - err = netxen_nic_attach(adapter); - if (err) - return err; - } + err = netxen_nic_attach(adapter); + if (err) + return err; err = netxen_nic_up(adapter, netdev); if (err) @@ -1320,30 +1514,52 @@ static int netxen_nic_close(struct net_device *netdev) return 0; } -static bool netxen_tso_check(struct net_device *netdev, - struct cmd_desc_type0 *desc, struct sk_buff *skb) +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) { - bool tso = false; u8 opcode = TX_ETHER_PKT; __be16 protocol = skb->protocol; - u16 flags = 0; + 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)) { - struct vlan_ethhdr *vh = (struct vlan_ethhdr *)skb->data; + + 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) { - desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); - desc->total_hdr_length = - skb_transport_offset(skb) + tcp_hdrlen(skb); + 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 = true; + tso = 1; } else if (skb->ip_summed == CHECKSUM_PARTIAL) { u8 l4proto; @@ -1364,55 +1580,133 @@ static bool netxen_tso_check(struct net_device *netdev, opcode = TX_UDPV6_PKT; } } - desc->tcp_hdr_offset = skb_transport_offset(skb); - desc->ip_hdr_offset = skb_network_offset(skb); - netxen_set_tx_flags_opcode(desc, flags, opcode); - return tso; + + 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 void -netxen_clean_tx_dma_mapping(struct pci_dev *pdev, - struct netxen_cmd_buffer *pbuf, int last) +static int +netxen_map_tx_skb(struct pci_dev *pdev, + struct sk_buff *skb, struct netxen_cmd_buffer *pbuf) { - int k; - struct netxen_skb_frag *buffrag; + 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]; - buffrag = &pbuf->frag_array[0]; - pci_unmap_single(pdev, buffrag->dma, - buffrag->length, PCI_DMA_TODEVICE); + map = pci_map_single(pdev, skb->data, + skb_headlen(skb), PCI_DMA_TODEVICE); + if (pci_dma_mapping_error(pdev, map)) + goto out_err; - for (k = 1; k < last; k++) { - buffrag = &pbuf->frag_array[k]; - pci_unmap_page(pdev, buffrag->dma, - buffrag->length, PCI_DMA_TODEVICE); + 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) { - int i; - for (i = 0; i < 8; i++) - desc[i] = 0ULL; + desc[0] = 0ULL; + desc[2] = 0ULL; } -static int +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; - unsigned int first_seg_len = skb->len - skb->data_len; struct netxen_cmd_buffer *pbuf; struct netxen_skb_frag *buffrag; - struct cmd_desc_type0 *hwdesc; - struct pci_dev *pdev = adapter->pdev; - dma_addr_t temp_dma; + 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; - bool is_tso = false; frag_count = skb_shinfo(skb)->nr_frags + 1; @@ -1425,121 +1719,60 @@ netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) } producer = tx_ring->producer; - - hwdesc = &tx_ring->desc_head[producer]; - netxen_clear_cmddesc((u64 *)hwdesc); pbuf = &tx_ring->cmd_buf_arr[producer]; - is_tso = netxen_tso_check(netdev, hwdesc, skb); + pdev = adapter->pdev; + + if (netxen_map_tx_skb(pdev, skb, pbuf)) + goto drop_packet; pbuf->skb = skb; pbuf->frag_count = frag_count; - buffrag = &pbuf->frag_array[0]; - temp_dma = pci_map_single(pdev, skb->data, first_seg_len, - PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(pdev, temp_dma)) - goto drop_packet; - buffrag->dma = temp_dma; - buffrag->length = first_seg_len; - netxen_set_tx_frags_len(hwdesc, frag_count, skb->len); - netxen_set_tx_port(hwdesc, adapter->portnum); + 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); - hwdesc->buffer_length[0] = cpu_to_le16(first_seg_len); - hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); + for (i = 0; i < frag_count; i++) { - for (i = 1, k = 1; i < frag_count; i++, k++) { - struct skb_frag_struct *frag; - int len, temp_len; - unsigned long offset; + k = i % 4; - /* move to next desc. if there is a need */ - if ((i & 0x3) == 0) { - k = 0; + 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); - pbuf = &tx_ring->cmd_buf_arr[producer]; - pbuf->skb = NULL; - } - frag = &skb_shinfo(skb)->frags[i - 1]; - len = frag->size; - offset = frag->page_offset; - - temp_len = len; - temp_dma = pci_map_page(pdev, frag->page, offset, - len, PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(pdev, temp_dma)) { - netxen_clean_tx_dma_mapping(pdev, pbuf, i); - goto drop_packet; + tx_ring->cmd_buf_arr[producer].skb = NULL; } - buffrag++; - buffrag->dma = temp_dma; - buffrag->length = temp_len; + buffrag = &pbuf->frag_array[i]; - hwdesc->buffer_length[k] = cpu_to_le16(temp_len); + hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length); switch (k) { case 0: - hwdesc->addr_buffer1 = cpu_to_le64(temp_dma); + hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); break; case 1: - hwdesc->addr_buffer2 = cpu_to_le64(temp_dma); + hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma); break; case 2: - hwdesc->addr_buffer3 = cpu_to_le64(temp_dma); + hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma); break; case 3: - hwdesc->addr_buffer4 = cpu_to_le64(temp_dma); + hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma); break; } - frag++; } - producer = get_next_index(producer, num_txd); - /* For LSO, we need to copy the MAC/IP/TCP headers into - * the descriptor ring - */ - if (is_tso) { - int hdr_len, first_hdr_len, more_hdr; - hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); - if (hdr_len > (sizeof(struct cmd_desc_type0) - 2)) { - first_hdr_len = sizeof(struct cmd_desc_type0) - 2; - more_hdr = 1; - } else { - first_hdr_len = hdr_len; - more_hdr = 0; - } - /* copy the MAC/IP/TCP headers to the cmd descriptor list */ - hwdesc = &tx_ring->desc_head[producer]; - pbuf = &tx_ring->cmd_buf_arr[producer]; - pbuf->skb = NULL; - - /* copy the first 64 bytes */ - memcpy(((void *)hwdesc) + 2, - (void *)(skb->data), first_hdr_len); - producer = get_next_index(producer, num_txd); - - if (more_hdr) { - hwdesc = &tx_ring->desc_head[producer]; - pbuf = &tx_ring->cmd_buf_arr[producer]; - pbuf->skb = NULL; - /* copy the next 64 bytes - should be enough except - * for pathological case - */ - skb_copy_from_linear_data_offset(skb, first_hdr_len, - hwdesc, - (hdr_len - - first_hdr_len)); - producer = get_next_index(producer, num_txd); - } - } + tx_ring->producer = get_next_index(producer, num_txd); - tx_ring->producer = producer; - adapter->stats.txbytes += skb->len; + 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; @@ -1635,58 +1868,14 @@ static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) netxen_advert_link_change(adapter, linkup); } -static void netxen_nic_thermal_shutdown(struct netxen_adapter *adapter) -{ - struct net_device *netdev = adapter->netdev; - - netif_device_detach(netdev); - netxen_nic_down(adapter, netdev); - netxen_nic_detach(adapter); -} - -static void netxen_watchdog(unsigned long v) -{ - struct netxen_adapter *adapter = (struct netxen_adapter *)v; - - if (netxen_nic_check_temp(adapter)) - goto do_sched; - - if (!adapter->has_link_events) { - netxen_nic_handle_phy_intr(adapter); - - if (adapter->link_changed) - goto do_sched; - } - - if (netif_running(adapter->netdev)) - mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ); - - return; - -do_sched: - schedule_work(&adapter->watchdog_task); -} - -void netxen_watchdog_task(struct work_struct *work) +static void netxen_tx_timeout(struct net_device *netdev) { - struct netxen_adapter *adapter = - container_of(work, struct netxen_adapter, watchdog_task); + struct netxen_adapter *adapter = netdev_priv(netdev); - if (adapter->temp == NX_TEMP_PANIC) { - netxen_nic_thermal_shutdown(adapter); + if (test_bit(__NX_RESETTING, &adapter->state)) return; - } - - if (adapter->link_changed) - netxen_nic_set_link_parameters(adapter); - - if (netif_running(adapter->netdev)) - mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ); -} -static void netxen_tx_timeout(struct net_device *netdev) -{ - struct netxen_adapter *adapter = netdev_priv(netdev); + dev_err(&netdev->dev, "transmit timeout, resetting.\n"); schedule_work(&adapter->tx_timeout_task); } @@ -1698,15 +1887,37 @@ static void netxen_tx_timeout_task(struct work_struct *work) if (!netif_running(adapter->netdev)) return; - printk(KERN_ERR "%s %s: transmit timeout, resetting.\n", - netxen_nic_driver_name, adapter->netdev->name); + if (test_and_set_bit(__NX_RESETTING, &adapter->state)) + return; - netxen_napi_disable(adapter); + if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS) + goto request_reset; - adapter->netdev->trans_start = jiffies; + if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { + /* try to scrub interrupt */ + netxen_napi_disable(adapter); - netxen_napi_enable(adapter); - netif_wake_queue(adapter->netdev); + adapter->netdev->trans_start = jiffies; + + netxen_napi_enable(adapter); + + netif_wake_queue(adapter->netdev); + + goto done; + + } else { + if (!netxen_nic_reset_context(adapter)) { + adapter->netdev->trans_start = jiffies; + goto done; + } + + /* context reset failed, fall through for fw reset */ + } + +request_reset: + adapter->need_fw_reset = 1; +done: + clear_bit(__NX_RESETTING, &adapter->state); } struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev) @@ -1716,7 +1927,7 @@ struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev) memset(stats, 0, sizeof(*stats)); - stats->rx_packets = adapter->stats.no_rcv; + 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; @@ -1732,41 +1943,37 @@ static irqreturn_t netxen_intr(int irq, void *data) struct netxen_adapter *adapter = sds_ring->adapter; u32 status = 0; - status = adapter->pci_read_immediate(adapter, ISR_INT_VECTOR); + status = readl(adapter->isr_int_vec); - if (!(status & adapter->legacy_intr.int_vec_bit)) + if (!(status & adapter->int_vec_bit)) return IRQ_NONE; - if (adapter->ahw.revision_id >= NX_P3_B1) { + if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { /* check interrupt state machine, to be sure */ - status = adapter->pci_read_immediate(adapter, - ISR_INT_STATE_REG); + status = readl(adapter->crb_int_state_reg); if (!ISR_LEGACY_INT_TRIGGERED(status)) return IRQ_NONE; } else { unsigned long our_int = 0; - our_int = NXRD32(adapter, CRB_INT_VECTOR); + 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 */ - NXWR32(adapter, CRB_INT_VECTOR, (our_int & 0xffffffff)); - } + writel((our_int & 0xffffffff), adapter->crb_int_state_reg); - /* clear interrupt */ - if (adapter->fw_major < 4) + /* clear interrupt */ netxen_nic_disable_int(sds_ring); + } - adapter->pci_write_immediate(adapter, - adapter->legacy_intr.tgt_status_reg, - 0xffffffff); + writel(0xffffffff, adapter->tgt_status_reg); /* read twice to ensure write is flushed */ - adapter->pci_read_immediate(adapter, ISR_INT_VECTOR); - adapter->pci_read_immediate(adapter, ISR_INT_VECTOR); + readl(adapter->isr_int_vec); + readl(adapter->isr_int_vec); napi_schedule(&sds_ring->napi); @@ -1779,8 +1986,7 @@ static irqreturn_t netxen_msi_intr(int irq, void *data) struct netxen_adapter *adapter = sds_ring->adapter; /* clear interrupt */ - adapter->pci_write_immediate(adapter, - adapter->msi_tgt_status, 0xffffffff); + writel(0xffffffff, adapter->tgt_status_reg); napi_schedule(&sds_ring->napi); return IRQ_HANDLED; @@ -1827,6 +2033,473 @@ static void netxen_nic_poll_controller(struct net_device *netdev) } #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 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); +} + +#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, @@ -1834,16 +2507,20 @@ static struct pci_driver netxen_driver = { .remove = __devexit_p(netxen_nic_remove), #ifdef CONFIG_PM .suspend = netxen_nic_suspend, - .resume = netxen_nic_resume + .resume = netxen_nic_resume, #endif + .shutdown = netxen_nic_shutdown }; -/* Driver Registration on NetXen card */ - 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); } @@ -1852,6 +2529,11 @@ 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); |