diff options
Diffstat (limited to 'drivers/net/qlcnic/qlcnic_main.c')
| -rw-r--r-- | drivers/net/qlcnic/qlcnic_main.c | 2725 |
1 files changed, 0 insertions, 2725 deletions
diff --git a/drivers/net/qlcnic/qlcnic_main.c b/drivers/net/qlcnic/qlcnic_main.c deleted file mode 100644 index fc721564e69..00000000000 --- a/drivers/net/qlcnic/qlcnic_main.c +++ /dev/null @@ -1,2725 +0,0 @@ -/* - * 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 "COPYING". - * - */ - -#include <linux/vmalloc.h> -#include <linux/interrupt.h> - -#include "qlcnic.h" - -#include <linux/dma-mapping.h> -#include <linux/if_vlan.h> -#include <net/ip.h> -#include <linux/ipv6.h> -#include <linux/inetdevice.h> -#include <linux/sysfs.h> - -MODULE_DESCRIPTION("QLogic 10 GbE Converged Ethernet Driver"); -MODULE_LICENSE("GPL"); -MODULE_VERSION(QLCNIC_LINUX_VERSIONID); -MODULE_FIRMWARE(QLCNIC_UNIFIED_ROMIMAGE_NAME); - -char qlcnic_driver_name[] = "qlcnic"; -static const char qlcnic_driver_string[] = "QLogic Converged Ethernet Driver v" - QLCNIC_LINUX_VERSIONID; - -static int port_mode = QLCNIC_PORT_MODE_AUTO_NEG; - -/* Default to restricted 1G auto-neg mode */ -static int wol_port_mode = 5; - -static int use_msi = 1; -module_param(use_msi, int, 0644); -MODULE_PARM_DESC(use_msi, "MSI interrupt (0=disabled, 1=enabled"); - -static int use_msi_x = 1; -module_param(use_msi_x, int, 0644); -MODULE_PARM_DESC(use_msi_x, "MSI-X interrupt (0=disabled, 1=enabled"); - -static int auto_fw_reset = AUTO_FW_RESET_ENABLED; -module_param(auto_fw_reset, int, 0644); -MODULE_PARM_DESC(auto_fw_reset, "Auto firmware reset (0=disabled, 1=enabled"); - -static int __devinit qlcnic_probe(struct pci_dev *pdev, - const struct pci_device_id *ent); -static void __devexit qlcnic_remove(struct pci_dev *pdev); -static int qlcnic_open(struct net_device *netdev); -static int qlcnic_close(struct net_device *netdev); -static void qlcnic_tx_timeout(struct net_device *netdev); -static void qlcnic_tx_timeout_task(struct work_struct *work); -static void qlcnic_attach_work(struct work_struct *work); -static void qlcnic_fwinit_work(struct work_struct *work); -static void qlcnic_fw_poll_work(struct work_struct *work); -static void qlcnic_schedule_work(struct qlcnic_adapter *adapter, - work_func_t func, int delay); -static void qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter); -static int qlcnic_poll(struct napi_struct *napi, int budget); -#ifdef CONFIG_NET_POLL_CONTROLLER -static void qlcnic_poll_controller(struct net_device *netdev); -#endif - -static void qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter); -static void qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter); -static void qlcnic_create_diag_entries(struct qlcnic_adapter *adapter); -static void qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter); - -static void qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter); -static int qlcnic_can_start_firmware(struct qlcnic_adapter *adapter); - -static irqreturn_t qlcnic_tmp_intr(int irq, void *data); -static irqreturn_t qlcnic_intr(int irq, void *data); -static irqreturn_t qlcnic_msi_intr(int irq, void *data); -static irqreturn_t qlcnic_msix_intr(int irq, void *data); - -static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev); -static void qlcnic_config_indev_addr(struct net_device *dev, unsigned long); - -/* PCI Device ID Table */ -#define ENTRY(device) \ - {PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, (device)), \ - .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0} - -#define PCI_DEVICE_ID_QLOGIC_QLE824X 0x8020 - -static DEFINE_PCI_DEVICE_TABLE(qlcnic_pci_tbl) = { - ENTRY(PCI_DEVICE_ID_QLOGIC_QLE824X), - {0,} -}; - -MODULE_DEVICE_TABLE(pci, qlcnic_pci_tbl); - - -void -qlcnic_update_cmd_producer(struct qlcnic_adapter *adapter, - struct qlcnic_host_tx_ring *tx_ring) -{ - writel(tx_ring->producer, tx_ring->crb_cmd_producer); - - if (qlcnic_tx_avail(tx_ring) <= TX_STOP_THRESH) { - netif_stop_queue(adapter->netdev); - smp_mb(); - adapter->stats.xmit_off++; - } -} - -static const u32 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 const -struct qlcnic_legacy_intr_set legacy_intr[] = QLCNIC_LEGACY_INTR_CONFIG; - -static inline void qlcnic_disable_int(struct qlcnic_host_sds_ring *sds_ring) -{ - writel(0, sds_ring->crb_intr_mask); -} - -static inline void qlcnic_enable_int(struct qlcnic_host_sds_ring *sds_ring) -{ - struct qlcnic_adapter *adapter = sds_ring->adapter; - - writel(0x1, sds_ring->crb_intr_mask); - - if (!QLCNIC_IS_MSI_FAMILY(adapter)) - writel(0xfbff, adapter->tgt_mask_reg); -} - -static int -qlcnic_alloc_sds_rings(struct qlcnic_recv_context *recv_ctx, int count) -{ - int size = sizeof(struct qlcnic_host_sds_ring) * count; - - recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL); - - return (recv_ctx->sds_rings == NULL); -} - -static void -qlcnic_free_sds_rings(struct qlcnic_recv_context *recv_ctx) -{ - if (recv_ctx->sds_rings != NULL) - kfree(recv_ctx->sds_rings); - - recv_ctx->sds_rings = NULL; -} - -static int -qlcnic_napi_add(struct qlcnic_adapter *adapter, struct net_device *netdev) -{ - int ring; - struct qlcnic_host_sds_ring *sds_ring; - struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; - - if (qlcnic_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, - qlcnic_poll, QLCNIC_NETDEV_WEIGHT); - } - - return 0; -} - -static void -qlcnic_napi_del(struct qlcnic_adapter *adapter) -{ - int ring; - struct qlcnic_host_sds_ring *sds_ring; - struct qlcnic_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); - } - - qlcnic_free_sds_rings(&adapter->recv_ctx); -} - -static void -qlcnic_napi_enable(struct qlcnic_adapter *adapter) -{ - int ring; - struct qlcnic_host_sds_ring *sds_ring; - struct qlcnic_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); - qlcnic_enable_int(sds_ring); - } -} - -static void -qlcnic_napi_disable(struct qlcnic_adapter *adapter) -{ - int ring; - struct qlcnic_host_sds_ring *sds_ring; - struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; - - for (ring = 0; ring < adapter->max_sds_rings; ring++) { - sds_ring = &recv_ctx->sds_rings[ring]; - qlcnic_disable_int(sds_ring); - napi_synchronize(&sds_ring->napi); - napi_disable(&sds_ring->napi); - } -} - -static void qlcnic_clear_stats(struct qlcnic_adapter *adapter) -{ - memset(&adapter->stats, 0, sizeof(adapter->stats)); - return; -} - -static int qlcnic_set_dma_mask(struct qlcnic_adapter *adapter) -{ - struct pci_dev *pdev = adapter->pdev; - u64 mask, cmask; - - adapter->pci_using_dac = 0; - - 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 -qlcnic_update_dma_mask(struct qlcnic_adapter *adapter) -{ - int change, shift, err; - u64 mask, old_mask, old_cmask; - struct pci_dev *pdev = adapter->pdev; - - change = 0; - - shift = QLCRD32(adapter, CRB_DMA_SHIFT); - if (shift > 32) - return 0; - - if (shift > 9) - 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; - - 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 void qlcnic_set_port_mode(struct qlcnic_adapter *adapter) -{ - u32 val, data; - - val = adapter->ahw.board_type; - if ((val == QLCNIC_BRDTYPE_P3_HMEZ) || - (val == QLCNIC_BRDTYPE_P3_XG_LOM)) { - if (port_mode == QLCNIC_PORT_MODE_802_3_AP) { - data = QLCNIC_PORT_MODE_802_3_AP; - QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); - } else if (port_mode == QLCNIC_PORT_MODE_XG) { - data = QLCNIC_PORT_MODE_XG; - QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); - } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_1G) { - data = QLCNIC_PORT_MODE_AUTO_NEG_1G; - QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); - } else if (port_mode == QLCNIC_PORT_MODE_AUTO_NEG_XG) { - data = QLCNIC_PORT_MODE_AUTO_NEG_XG; - QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); - } else { - data = QLCNIC_PORT_MODE_AUTO_NEG; - QLCWR32(adapter, QLCNIC_PORT_MODE_ADDR, data); - } - - if ((wol_port_mode != QLCNIC_PORT_MODE_802_3_AP) && - (wol_port_mode != QLCNIC_PORT_MODE_XG) && - (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_1G) && - (wol_port_mode != QLCNIC_PORT_MODE_AUTO_NEG_XG)) { - wol_port_mode = QLCNIC_PORT_MODE_AUTO_NEG; - } - QLCWR32(adapter, QLCNIC_WOL_PORT_MODE, wol_port_mode); - } -} - -static void qlcnic_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 qlcnic_init_msix_entries(struct qlcnic_adapter *adapter, int count) -{ - int i; - - for (i = 0; i < count; i++) - adapter->msix_entries[i].entry = i; -} - -static int -qlcnic_read_mac_addr(struct qlcnic_adapter *adapter) -{ - int i; - unsigned char *p; - u64 mac_addr; - struct net_device *netdev = adapter->netdev; - struct pci_dev *pdev = adapter->pdev; - - if (qlcnic_get_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); - memcpy(adapter->mac_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; -} - -static int qlcnic_set_mac(struct net_device *netdev, void *p) -{ - struct qlcnic_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); - qlcnic_napi_disable(adapter); - } - - memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len); - memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); - qlcnic_set_multi(adapter->netdev); - - if (netif_running(netdev)) { - netif_device_attach(netdev); - qlcnic_napi_enable(adapter); - } - return 0; -} - -static const struct net_device_ops qlcnic_netdev_ops = { - .ndo_open = qlcnic_open, - .ndo_stop = qlcnic_close, - .ndo_start_xmit = qlcnic_xmit_frame, - .ndo_get_stats = qlcnic_get_stats, - .ndo_validate_addr = eth_validate_addr, - .ndo_set_multicast_list = qlcnic_set_multi, - .ndo_set_mac_address = qlcnic_set_mac, - .ndo_change_mtu = qlcnic_change_mtu, - .ndo_tx_timeout = qlcnic_tx_timeout, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = qlcnic_poll_controller, -#endif -}; - -static void -qlcnic_setup_intr(struct qlcnic_adapter *adapter) -{ - const struct qlcnic_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 &= ~(QLCNIC_MSI_ENABLED | QLCNIC_MSIX_ENABLED); - - legacy_intrp = &legacy_intr[adapter->ahw.pci_func]; - - adapter->int_vec_bit = legacy_intrp->int_vec_bit; - adapter->tgt_status_reg = qlcnic_get_ioaddr(adapter, - legacy_intrp->tgt_status_reg); - adapter->tgt_mask_reg = qlcnic_get_ioaddr(adapter, - legacy_intrp->tgt_mask_reg); - adapter->isr_int_vec = qlcnic_get_ioaddr(adapter, ISR_INT_VECTOR); - - adapter->crb_int_state_reg = qlcnic_get_ioaddr(adapter, - ISR_INT_STATE_REG); - - qlcnic_set_msix_bit(pdev, 0); - - if (adapter->msix_supported) { - - qlcnic_init_msix_entries(adapter, num_msix); - err = pci_enable_msix(pdev, adapter->msix_entries, num_msix); - if (err == 0) { - adapter->flags |= QLCNIC_MSIX_ENABLED; - qlcnic_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 |= QLCNIC_MSI_ENABLED; - adapter->tgt_status_reg = qlcnic_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 -qlcnic_teardown_intr(struct qlcnic_adapter *adapter) -{ - if (adapter->flags & QLCNIC_MSIX_ENABLED) - pci_disable_msix(adapter->pdev); - if (adapter->flags & QLCNIC_MSI_ENABLED) - pci_disable_msi(adapter->pdev); -} - -static void -qlcnic_cleanup_pci_map(struct qlcnic_adapter *adapter) -{ - if (adapter->ahw.pci_base0 != NULL) - iounmap(adapter->ahw.pci_base0); -} - -static int -qlcnic_setup_pci_map(struct qlcnic_adapter *adapter) -{ - void __iomem *mem_ptr0 = NULL; - resource_size_t mem_base; - unsigned long mem_len, pci_len0 = 0; - - struct pci_dev *pdev = adapter->pdev; - int pci_func = adapter->ahw.pci_func; - - /* - * 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); - - if (mem_len == QLCNIC_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; - } - - 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.ocm_win_crb = qlcnic_get_ioaddr(adapter, - QLCNIC_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func))); - - return 0; -} - -static void get_brd_name(struct qlcnic_adapter *adapter, char *name) -{ - struct pci_dev *pdev = adapter->pdev; - int i, found = 0; - - for (i = 0; i < NUM_SUPPORTED_BOARDS; ++i) { - if (qlcnic_boards[i].vendor == pdev->vendor && - qlcnic_boards[i].device == pdev->device && - qlcnic_boards[i].sub_vendor == pdev->subsystem_vendor && - qlcnic_boards[i].sub_device == pdev->subsystem_device) { - strcpy(name, qlcnic_boards[i].short_name); - found = 1; - break; - } - - } - - if (!found) - name = "Unknown"; -} - -static void -qlcnic_check_options(struct qlcnic_adapter *adapter) -{ - u32 fw_major, fw_minor, fw_build; - char brd_name[QLCNIC_MAX_BOARD_NAME_LEN]; - 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 = QLCNIC_FW_SERIAL_NUM_OFFSET; - for (i = 0; i < 8; i++) { - if (qlcnic_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 = QLCRD32(adapter, QLCNIC_FW_VERSION_MAJOR); - fw_minor = QLCRD32(adapter, QLCNIC_FW_VERSION_MINOR); - fw_build = QLCRD32(adapter, QLCNIC_FW_VERSION_SUB); - - adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build); - - if (adapter->portnum == 0) { - get_brd_name(adapter, brd_name); - - pr_info("%s: %s Board Chip rev 0x%x\n", - module_name(THIS_MODULE), - brd_name, adapter->ahw.revision_id); - } - - if (adapter->fw_version < QLCNIC_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; - } - - i = QLCRD32(adapter, QLCNIC_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 >= QLCNIC_VERSION_CODE(4, 0, 222)) - adapter->capabilities = QLCRD32(adapter, CRB_FW_CAPABILITIES_1); - - adapter->flags &= ~QLCNIC_LRO_ENABLED; - - if (adapter->ahw.port_type == QLCNIC_XGBE) { - adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_10G; - adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_10G; - } else if (adapter->ahw.port_type == QLCNIC_GBE) { - adapter->num_rxd = DEFAULT_RCV_DESCRIPTORS_1G; - adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS_1G; - } - - adapter->msix_supported = !!use_msi_x; - adapter->rss_supported = !!use_msi_x; - - adapter->num_txd = MAX_CMD_DESCRIPTORS; - - adapter->num_lro_rxd = 0; - adapter->max_rds_rings = 2; -} - -static int -qlcnic_start_firmware(struct qlcnic_adapter *adapter) -{ - int val, err, first_boot; - - err = qlcnic_set_dma_mask(adapter); - if (err) - return err; - - if (!qlcnic_can_start_firmware(adapter)) - goto wait_init; - - first_boot = QLCRD32(adapter, QLCNIC_CAM_RAM(0x1fc)); - if (first_boot == 0x55555555) - /* This is the first boot after power up */ - QLCWR32(adapter, QLCNIC_CAM_RAM(0x1fc), QLCNIC_BDINFO_MAGIC); - - qlcnic_request_firmware(adapter); - - err = qlcnic_need_fw_reset(adapter); - if (err < 0) - goto err_out; - if (err == 0) - goto wait_init; - - if (first_boot != 0x55555555) { - QLCWR32(adapter, CRB_CMDPEG_STATE, 0); - qlcnic_pinit_from_rom(adapter); - msleep(1); - } - - QLCWR32(adapter, CRB_DMA_SHIFT, 0x55555555); - QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS1, 0); - QLCWR32(adapter, QLCNIC_PEG_HALT_STATUS2, 0); - - qlcnic_set_port_mode(adapter); - - err = qlcnic_load_firmware(adapter); - if (err) - goto err_out; - - qlcnic_release_firmware(adapter); - - val = (_QLCNIC_LINUX_MAJOR << 16) - | ((_QLCNIC_LINUX_MINOR << 8)) - | (_QLCNIC_LINUX_SUBVERSION); - QLCWR32(adapter, CRB_DRIVER_VERSION, val); - -wait_init: - /* Handshake with the card before we register the devices. */ - err = qlcnic_phantom_init(adapter); - if (err) - goto err_out; - - QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_READY); - - qlcnic_update_dma_mask(adapter); - - qlcnic_check_options(adapter); - - adapter->need_fw_reset = 0; - - /* fall through and release firmware */ - -err_out: - qlcnic_release_firmware(adapter); - return err; -} - -static int -qlcnic_request_irq(struct qlcnic_adapter *adapter) -{ - irq_handler_t handler; - struct qlcnic_host_sds_ring *sds_ring; - int err, ring; - - unsigned long flags = 0; - struct net_device *netdev = adapter->netdev; - struct qlcnic_recv_context *recv_ctx = &adapter->recv_ctx; - - if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) { - handler = qlcnic_tmp_intr; - if (!QLCNIC_IS_MSI_FAMILY(adapter)) - flags |= IRQF_SHARED; - - } else { - if (adapter->flags & QLCNIC_MSIX_ENABLED) - handler = qlcnic_msix_intr; - else if (adapter->flags & QLCNIC_MSI_ENABLED) - handler = qlcnic_msi_intr; - else { - flags |= IRQF_SHARED; - handler = qlcnic_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 -qlcnic_free_irq(struct qlcnic_adapter *adapter) -{ - int ring; - struct qlcnic_host_sds_ring *sds_ring; - - struct qlcnic_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 -qlcnic_init_coalesce_defaults(struct qlcnic_adapter *adapter) -{ - adapter->coal.flags = QLCNIC_INTR_DEFAULT; - adapter->coal.normal.data.rx_time_us = - QLCNIC_DEFAULT_INTR_COALESCE_RX_TIME_US; - adapter->coal.normal.data.rx_packets = - QLCNIC_DEFAULT_INTR_COALESCE_RX_PACKETS; - adapter->coal.normal.data.tx_time_us = - QLCNIC_DEFAULT_INTR_COALESCE_TX_TIME_US; - adapter->coal.normal.data.tx_packets = - QLCNIC_DEFAULT_INTR_COALESCE_TX_PACKETS; -} - -static int -__qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev) -{ - if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) - return -EIO; - - qlcnic_set_multi(netdev); - qlcnic_fw_cmd_set_mtu(adapter, netdev->mtu); - - adapter->ahw.linkup = 0; - - if (adapter->max_sds_rings > 1) - qlcnic_config_rss(adapter, 1); - - qlcnic_config_intr_coalesce(adapter); - - if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO) - qlcnic_config_hw_lro(adapter, QLCNIC_LRO_ENABLED); - - qlcnic_napi_enable(adapter); - - qlcnic_linkevent_request(adapter, 1); - - set_bit(__QLCNIC_DEV_UP, &adapter->state); - return 0; -} - -/* Usage: During resume and firmware recovery module.*/ - -static int -qlcnic_up(struct qlcnic_adapter *adapter, struct net_device *netdev) -{ - int err = 0; - - rtnl_lock(); - if (netif_running(netdev)) - err = __qlcnic_up(adapter, netdev); - rtnl_unlock(); - - return err; -} - -static void -__qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev) -{ - if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) - return; - - if (!test_and_clear_bit(__QLCNIC_DEV_UP, &adapter->state)) - return; - - smp_mb(); - spin_lock(&adapter->tx_clean_lock); - netif_carrier_off(netdev); - netif_tx_disable(netdev); - - qlcnic_free_mac_list(adapter); - - qlcnic_nic_set_promisc(adapter, QLCNIC_NIU_NON_PROMISC_MODE); - - qlcnic_napi_disable(adapter); - - qlcnic_release_tx_buffers(adapter); - spin_unlock(&adapter->tx_clean_lock); -} - -/* Usage: During suspend and firmware recovery module */ - -static void -qlcnic_down(struct qlcnic_adapter *adapter, struct net_device *netdev) -{ - rtnl_lock(); - if (netif_running(netdev)) - __qlcnic_down(adapter, netdev); - rtnl_unlock(); - -} - -static int -qlcnic_attach(struct qlcnic_adapter *adapter) -{ - struct net_device *netdev = adapter->netdev; - struct pci_dev *pdev = adapter->pdev; - int err, ring; - struct qlcnic_host_rds_ring *rds_ring; - - if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) - return 0; - - err = qlcnic_init_firmware(adapter); - if (err) - return err; - - err = qlcnic_napi_add(adapter, netdev); - if (err) - return err; - - err = qlcnic_alloc_sw_resources(adapter); - if (err) { - dev_err(&pdev->dev, "Error in setting sw resources\n"); - return err; - } - - err = qlcnic_alloc_hw_resources(adapter); - if (err) { - dev_err(&pdev->dev, "Error in setting hw resources\n"); - goto err_out_free_sw; - } - - - for (ring = 0; ring < adapter->max_rds_rings; ring++) { - rds_ring = &adapter->recv_ctx.rds_rings[ring]; - qlcnic_post_rx_buffers(adapter, ring, rds_ring); - } - - err = qlcnic_request_irq(adapter); - if (err) { - dev_err(&pdev->dev, "failed to setup interrupt\n"); - goto err_out_free_rxbuf; - } - - qlcnic_init_coalesce_defaults(adapter); - - qlcnic_create_sysfs_entries(adapter); - - adapter->is_up = QLCNIC_ADAPTER_UP_MAGIC; - return 0; - -err_out_free_rxbuf: - qlcnic_release_rx_buffers(adapter); - qlcnic_free_hw_resources(adapter); -err_out_free_sw: - qlcnic_free_sw_resources(adapter); - return err; -} - -static void -qlcnic_detach(struct qlcnic_adapter *adapter) -{ - if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) - return; - - qlcnic_remove_sysfs_entries(adapter); - - qlcnic_free_hw_resources(adapter); - qlcnic_release_rx_buffers(adapter); - qlcnic_free_irq(adapter); - qlcnic_napi_del(adapter); - qlcnic_free_sw_resources(adapter); - - adapter->is_up = 0; -} - -void qlcnic_diag_free_res(struct net_device *netdev, int max_sds_rings) -{ - struct qlcnic_adapter *adapter = netdev_priv(netdev); - struct qlcnic_host_sds_ring *sds_ring; - int ring; - - if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) { - for (ring = 0; ring < adapter->max_sds_rings; ring++) { - sds_ring = &adapter->recv_ctx.sds_rings[ring]; - qlcnic_disable_int(sds_ring); - } - } - - qlcnic_detach(adapter); - - adapter->diag_test = 0; - adapter->max_sds_rings = max_sds_rings; - - if (qlcnic_attach(adapter)) - return; - - if (netif_running(netdev)) - __qlcnic_up(adapter, netdev); - - netif_device_attach(netdev); -} - -int qlcnic_diag_alloc_res(struct net_device *netdev, int test) -{ - struct qlcnic_adapter *adapter = netdev_priv(netdev); - struct qlcnic_host_sds_ring *sds_ring; - int ring; - int ret; - - netif_device_detach(netdev); - - if (netif_running(netdev)) - __qlcnic_down(adapter, netdev); - - qlcnic_detach(adapter); - - adapter->max_sds_rings = 1; - adapter->diag_test = test; - - ret = qlcnic_attach(adapter); - if (ret) - return ret; - - if (adapter->diag_test == QLCNIC_INTERRUPT_TEST) { - for (ring = 0; ring < adapter->max_sds_rings; ring++) { - sds_ring = &adapter->recv_ctx.sds_rings[ring]; - qlcnic_enable_int(sds_ring); - } - } - - return 0; -} - -int -qlcnic_reset_context(struct qlcnic_adapter *adapter) -{ - int err = 0; - struct net_device *netdev = adapter->netdev; - - if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) - return -EBUSY; - - if (adapter->is_up == QLCNIC_ADAPTER_UP_MAGIC) { - - netif_device_detach(netdev); - - if (netif_running(netdev)) - __qlcnic_down(adapter, netdev); - - qlcnic_detach(adapter); - - if (netif_running(netdev)) { - err = qlcnic_attach(adapter); - if (!err) - err = __qlcnic_up(adapter, netdev); - - if (err) - goto done; - } - - netif_device_attach(netdev); - } - -done: - clear_bit(__QLCNIC_RESETTING, &adapter->state); - return err; -} - -static int -qlcnic_setup_netdev(struct qlcnic_adapter *adapter, - struct net_device *netdev) -{ - int err; - struct pci_dev *pdev = adapter->pdev; - - adapter->rx_csum = 1; - adapter->mc_enabled = 0; - adapter->max_mc_count = 38; - - netdev->netdev_ops = &qlcnic_netdev_ops; - netdev->watchdog_timeo = 2*HZ; - - qlcnic_change_mtu(netdev, netdev->mtu); - - SET_ETHTOOL_OPS(netdev, &qlcnic_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); - - 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 & QLCNIC_FW_CAPABILITY_FVLANTX) - netdev->features |= (NETIF_F_HW_VLAN_TX); - - if (adapter->capabilities & QLCNIC_FW_CAPABILITY_HW_LRO) - netdev->features |= NETIF_F_LRO; - - netdev->irq = adapter->msix_entries[0].vector; - - INIT_WORK(&adapter->tx_timeout_task, qlcnic_tx_timeout_task); - - if (qlcnic_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 -qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) -{ - struct net_device *netdev = NULL; - struct qlcnic_adapter *adapter = NULL; - int err; - int pci_func_id = PCI_FUNC(pdev->devfn); - uint8_t revision_id; - - err = pci_enable_device(pdev); - if (err) - return err; - - if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { - err = -ENODEV; - goto err_out_disable_pdev; - } - - err = pci_request_regions(pdev, qlcnic_driver_name); - if (err) - goto err_out_disable_pdev; - - pci_set_master(pdev); - - netdev = alloc_etherdev(sizeof(struct qlcnic_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); - mutex_init(&adapter->ahw.mem_lock); - - spin_lock_init(&adapter->tx_clean_lock); - INIT_LIST_HEAD(&adapter->mac_list); - - err = qlcnic_setup_pci_map(adapter); - if (err) - goto err_out_free_netdev; - - /* This will be reset for mezz cards */ - adapter->portnum = pci_func_id; - - err = qlcnic_get_board_info(adapter); - if (err) { - dev_err(&pdev->dev, "Error getting board config info.\n"); - goto err_out_iounmap; - } - - - err = qlcnic_start_firmware(adapter); - if (err) - goto err_out_decr_ref; - - /* - * See if the firmware gave us a virtual-physical port mapping. - */ - adapter->physical_port = adapter->portnum; - - qlcnic_clear_stats(adapter); - - qlcnic_setup_intr(adapter); - - err = qlcnic_setup_netdev(adapter, netdev); - if (err) - goto err_out_disable_msi; - - pci_set_drvdata(pdev, adapter); - - qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); - - switch (adapter->ahw.port_type) { - case QLCNIC_GBE: - dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", - adapter->netdev->name); - break; - case QLCNIC_XGBE: - dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", - adapter->netdev->name); - break; - } - - qlcnic_create_diag_entries(adapter); - - return 0; - -err_out_disable_msi: - qlcnic_teardown_intr(adapter); - -err_out_decr_ref: - qlcnic_clr_all_drv_state(adapter); - -err_out_iounmap: - qlcnic_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 qlcnic_remove(struct pci_dev *pdev) -{ - struct qlcnic_adapter *adapter; - struct net_device *netdev; - - adapter = pci_get_drvdata(pdev); - if (adapter == NULL) - return; - - netdev = adapter->netdev; - - qlcnic_cancel_fw_work(adapter); - - unregister_netdev(netdev); - - cancel_work_sync(&adapter->tx_timeout_task); - - qlcnic_detach(adapter); - - qlcnic_clr_all_drv_state(adapter); - - clear_bit(__QLCNIC_RESETTING, &adapter->state); - - qlcnic_teardown_intr(adapter); - - qlcnic_remove_diag_entries(adapter); - - qlcnic_cleanup_pci_map(adapter); - - qlcnic_release_firmware(adapter); - - pci_release_regions(pdev); - pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); - - free_netdev(netdev); -} -static int __qlcnic_shutdown(struct pci_dev *pdev) -{ - struct qlcnic_adapter *adapter = pci_get_drvdata(pdev); - struct net_device *netdev = adapter->netdev; - int retval; - - netif_device_detach(netdev); - - qlcnic_cancel_fw_work(adapter); - - if (netif_running(netdev)) - qlcnic_down(adapter, netdev); - - cancel_work_sync(&adapter->tx_timeout_task); - - qlcnic_detach(adapter); - - qlcnic_clr_all_drv_state(adapter); - - clear_bit(__QLCNIC_RESETTING, &adapter->state); - - retval = pci_save_state(pdev); - if (retval) - return retval; - - if (qlcnic_wol_supported(adapter)) { - pci_enable_wake(pdev, PCI_D3cold, 1); - pci_enable_wake(pdev, PCI_D3hot, 1); - } - - return 0; -} - -static void qlcnic_shutdown(struct pci_dev *pdev) -{ - if (__qlcnic_shutdown(pdev)) - return; - - pci_disable_device(pdev); -} - -#ifdef CONFIG_PM -static int -qlcnic_suspend(struct pci_dev *pdev, pm_message_t state) -{ - int retval; - - retval = __qlcnic_shutdown(pdev); - if (retval) - return retval; - - pci_set_power_state(pdev, pci_choose_state(pdev, state)); - return 0; -} - -static int -qlcnic_resume(struct pci_dev *pdev) -{ - struct qlcnic_adapter *adapter = pci_get_drvdata(pdev); - struct net_device *netdev = adapter->netdev; - int err; - - err = pci_enable_device(pdev); - if (err) - return err; - - pci_set_power_state(pdev, PCI_D0); - pci_set_master(pdev); - pci_restore_state(pdev); - - adapter->ahw.crb_win = -1; - adapter->ahw.ocm_win = -1; - - err = qlcnic_start_firmware(adapter); - if (err) { - dev_err(&pdev->dev, "failed to start firmware\n"); - return err; - } - - if (netif_running(netdev)) { - err = qlcnic_attach(adapter); - if (err) - goto err_out; - - err = qlcnic_up(adapter, netdev); - if (err) - goto err_out_detach; - - - qlcnic_config_indev_addr(netdev, NETDEV_UP); - } - - netif_device_attach(netdev); - qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); - return 0; - -err_out_detach: - qlcnic_detach(adapter); -err_out: - qlcnic_clr_all_drv_state(adapter); - return err; -} -#endif - -static int qlcnic_open(struct net_device *netdev) -{ - struct qlcnic_adapter *adapter = netdev_priv(netdev); - int err; - - if (adapter->driver_mismatch) - return -EIO; - - err = qlcnic_attach(adapter); - if (err) - return err; - - err = __qlcnic_up(adapter, netdev); - if (err) - goto err_out; - - netif_start_queue(netdev); - - return 0; - -err_out: - qlcnic_detach(adapter); - return err; -} - -/* - * qlcnic_close - Disables a network interface entry point - */ -static int qlcnic_close(struct net_device *netdev) -{ - struct qlcnic_adapter *adapter = netdev_priv(netdev); - - __qlcnic_down(adapter, netdev); - return 0; -} - -static void -qlcnic_tso_check(struct net_device *netdev, - struct qlcnic_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; - struct qlcnic_adapter *adapter = netdev_priv(netdev); - - 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); - qlcnic_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); - qlcnic_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(); - adapter->stats.lso_frames++; -} - -static int -qlcnic_map_tx_skb(struct pci_dev *pdev, - struct sk_buff *skb, struct qlcnic_cmd_buffer *pbuf) -{ - struct qlcnic_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 -qlcnic_clear_cmddesc(u64 *desc) -{ - desc[0] = 0ULL; - desc[2] = 0ULL; -} - -netdev_tx_t -qlcnic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) -{ - struct qlcnic_adapter *adapter = netdev_priv(netdev); - struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring; - struct qlcnic_cmd_buffer *pbuf; - struct qlcnic_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 > qlcnic_tx_avail(tx_ring))) { - netif_stop_queue(netdev); - adapter->stats.xmit_off++; - return NETDEV_TX_BUSY; - } - - producer = tx_ring->producer; - pbuf = &tx_ring->cmd_buf_arr[producer]; - - pdev = adapter->pdev; - - if (qlcnic_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]; - qlcnic_clear_cmddesc((u64 *)hwdesc); - - qlcnic_set_tx_frags_len(first_desc, frag_count, skb->len); - qlcnic_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]; - qlcnic_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); - - qlcnic_tso_check(netdev, tx_ring, first_desc, skb); - - qlcnic_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 qlcnic_check_temp(struct qlcnic_adapter *adapter) -{ - struct net_device *netdev = adapter->netdev; - u32 temp, temp_state, temp_val; - int rv = 0; - - temp = QLCRD32(adapter, CRB_TEMP_STATE); - - temp_state = qlcnic_get_temp_state(temp); - temp_val = qlcnic_get_temp_val(temp); - - if (temp_state == QLCNIC_TEMP_PANIC) { - dev_err(&netdev->dev, - "Device temperature %d degrees C exceeds" - " maximum allowed. Hardware has been shut down.\n", - temp_val); - rv = 1; - } else if (temp_state == QLCNIC_TEMP_WARN) { - if (adapter->temp == QLCNIC_TEMP_NORMAL) { - dev_err(&netdev->dev, - "Device temperature %d degrees C " - "exceeds operating range." - " Immediate action needed.\n", - temp_val); - } - } else { - if (adapter->temp == QLCNIC_TEMP_WARN) { - dev_info(&netdev->dev, - "Device temperature is now %d degrees C" - " in normal range.\n", temp_val); - } - } - adapter->temp = temp_state; - return rv; -} - -void qlcnic_advert_link_change(struct qlcnic_adapter *adapter, int linkup) -{ - struct net_device *netdev = adapter->netdev; - - if (adapter->ahw.linkup && !linkup) { - dev_info(&netdev->dev, "NIC Link is down\n"); - adapter->ahw.linkup = 0; - if (netif_running(netdev)) { - netif_carrier_off(netdev); - netif_stop_queue(netdev); - } - } else if (!adapter->ahw.linkup && linkup) { - dev_info(&netdev->dev, "NIC Link is up\n"); - adapter->ahw.linkup = 1; - if (netif_running(netdev)) { - netif_carrier_on(netdev); - netif_wake_queue(netdev); - } - } -} - -static void qlcnic_tx_timeout(struct net_device *netdev) -{ - struct qlcnic_adapter *adapter = netdev_priv(netdev); - - if (test_bit(__QLCNIC_RESETTING, &adapter->state)) - return; - - dev_err(&netdev->dev, "transmit timeout, resetting.\n"); - schedule_work(&adapter->tx_timeout_task); -} - -static void qlcnic_tx_timeout_task(struct work_struct *work) -{ - struct qlcnic_adapter *adapter = - container_of(work, struct qlcnic_adapter, tx_timeout_task); - - if (!netif_running(adapter->netdev)) - return; - - if (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) - return; - - if (++adapter->tx_timeo_cnt >= QLCNIC_MAX_TX_TIMEOUTS) - goto request_reset; - - clear_bit(__QLCNIC_RESETTING, &adapter->state); - if (!qlcnic_reset_context(adapter)) { - adapter->netdev->trans_start = jiffies; - return; - - /* context reset failed, fall through for fw reset */ - } - -request_reset: - adapter->need_fw_reset = 1; - clear_bit(__QLCNIC_RESETTING, &adapter->state); -} - -static struct net_device_stats *qlcnic_get_stats(struct net_device *netdev) -{ - struct qlcnic_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 qlcnic_clear_legacy_intr(struct qlcnic_adapter *adapter) -{ - u32 status; - - status = readl(adapter->isr_int_vec); - - if (!(status & adapter->int_vec_bit)) - return IRQ_NONE; - - /* check interrupt state machine, to be sure */ - status = readl(adapter->crb_int_state_reg); - if (!ISR_LEGACY_INT_TRIGGERED(status)) - return IRQ_NONE; - - writel(0xffffffff, adapter->tgt_status_reg); - /* read twice to ensure write is flushed */ - readl(adapter->isr_int_vec); - readl(adapter->isr_int_vec); - - return IRQ_HANDLED; -} - -static irqreturn_t qlcnic_tmp_intr(int irq, void *data) -{ - struct qlcnic_host_sds_ring *sds_ring = data; - struct qlcnic_adapter *adapter = sds_ring->adapter; - - if (adapter->flags & QLCNIC_MSIX_ENABLED) - goto done; - else if (adapter->flags & QLCNIC_MSI_ENABLED) { - writel(0xffffffff, adapter->tgt_status_reg); - goto done; - } - - if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE) - return IRQ_NONE; - -done: - adapter->diag_cnt++; - qlcnic_enable_int(sds_ring); - return IRQ_HANDLED; -} - -static irqreturn_t qlcnic_intr(int irq, void *data) -{ - struct qlcnic_host_sds_ring *sds_ring = data; - struct qlcnic_adapter *adapter = sds_ring->adapter; - - if (qlcnic_clear_legacy_intr(adapter) == IRQ_NONE) - return IRQ_NONE; - - napi_schedule(&sds_ring->napi); - - return IRQ_HANDLED; -} - -static irqreturn_t qlcnic_msi_intr(int irq, void *data) -{ - struct qlcnic_host_sds_ring *sds_ring = data; - struct qlcnic_adapter *adapter = sds_ring->adapter; - - /* clear interrupt */ - writel(0xffffffff, adapter->tgt_status_reg); - - napi_schedule(&sds_ring->napi); - return IRQ_HANDLED; -} - -static irqreturn_t qlcnic_msix_intr(int irq, void *data) -{ - struct qlcnic_host_sds_ring *sds_ring = data; - - napi_schedule(&sds_ring->napi); - return IRQ_HANDLED; -} - -static int qlcnic_process_cmd_ring(struct qlcnic_adapter *adapter) -{ - u32 sw_consumer, hw_consumer; - int count = 0, i; - struct qlcnic_cmd_buffer *buffer; - struct pci_dev *pdev = adapter->pdev; - struct net_device *netdev = adapter->netdev; - struct qlcnic_skb_frag *frag; - int done; - struct qlcnic_host_tx_ring *tx_ring = adapter->tx_ring; - - if (!spin_trylock(&adapter->tx_clean_lock)) - return 1; - - sw_consumer = tx_ring->sw_consumer; - hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); - - while (sw_consumer != hw_consumer) { - buffer = &tx_ring->cmd_buf_arr[sw_consumer]; - if (buffer->skb) { - frag = &buffer->frag_array[0]; - pci_unmap_single(pdev, frag->dma, frag->length, - PCI_DMA_TODEVICE); - frag->dma = 0ULL; - for (i = 1; i < buffer->frag_count; i++) { - frag++; - pci_unmap_page(pdev, frag->dma, frag->length, - PCI_DMA_TODEVICE); - frag->dma = 0ULL; - } - - adapter->stats.xmitfinished++; - dev_kfree_skb_any(buffer->skb); - buffer->skb = NULL; - } - - sw_consumer = get_next_index(sw_consumer, tx_ring->num_desc); - if (++count >= MAX_STATUS_HANDLE) - break; - } - - if (count && netif_running(netdev)) { - tx_ring->sw_consumer = sw_consumer; - - smp_mb(); - - if (netif_queue_stopped(netdev) && netif_carrier_ok(netdev)) { - __netif_tx_lock(tx_ring->txq, smp_processor_id()); - if (qlcnic_tx_avail(tx_ring) > TX_STOP_THRESH) { - netif_wake_queue(netdev); - adapter->tx_timeo_cnt = 0; - adapter->stats.xmit_on++; - } - __netif_tx_unlock(tx_ring->txq); - } - } - /* - * If everything is freed up to consumer then check if the ring is full - * If the ring is full then check if more needs to be freed and - * schedule the call back again. - * - * This happens when there are 2 CPUs. One could be freeing and the - * other filling it. If the ring is full when we get out of here and - * the card has already interrupted the host then the host can miss the - * interrupt. - * - * There is still a possible race condition and the host could miss an - * interrupt. The card has to take care of this. - */ - hw_consumer = le32_to_cpu(*(tx_ring->hw_consumer)); - done = (sw_consumer == hw_consumer); - spin_unlock(&adapter->tx_clean_lock); - - return done; -} - -static int qlcnic_poll(struct napi_struct *napi, int budget) -{ - struct qlcnic_host_sds_ring *sds_ring = - container_of(napi, struct qlcnic_host_sds_ring, napi); - - struct qlcnic_adapter *adapter = sds_ring->adapter; - - int tx_complete; - int work_done; - - tx_complete = qlcnic_process_cmd_ring(adapter); - - work_done = qlcnic_process_rcv_ring(sds_ring, budget); - - if ((work_done < budget) && tx_complete) { - napi_complete(&sds_ring->napi); - if (test_bit(__QLCNIC_DEV_UP, &adapter->state)) - qlcnic_enable_int(sds_ring); - } - - return work_done; -} - -#ifdef CONFIG_NET_POLL_CONTROLLER -static void qlcnic_poll_controller(struct net_device *netdev) -{ - struct qlcnic_adapter *adapter = netdev_priv(netdev); - disable_irq(adapter->irq); - qlcnic_intr(adapter->irq, adapter); - enable_irq(adapter->irq); -} -#endif - -static void -qlcnic_set_drv_state(struct qlcnic_adapter *adapter, int state) -{ - u32 val; - - WARN_ON(state != QLCNIC_DEV_NEED_RESET && - state != QLCNIC_DEV_NEED_QUISCENT); - - if (qlcnic_api_lock(adapter)) - return ; - - val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); - - if (state == QLCNIC_DEV_NEED_RESET) - val |= ((u32)0x1 << (adapter->portnum * 4)); - else if (state == QLCNIC_DEV_NEED_QUISCENT) - val |= ((u32)0x1 << ((adapter->portnum * 4) + 1)); - - QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); - - qlcnic_api_unlock(adapter); -} - -static int -qlcnic_clr_drv_state(struct qlcnic_adapter *adapter) -{ - u32 val; - - if (qlcnic_api_lock(adapter)) - return -EBUSY; - - val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); - val &= ~((u32)0x3 << (adapter->portnum * 4)); - QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); - - qlcnic_api_unlock(adapter); - - return 0; -} - -static void -qlcnic_clr_all_drv_state(struct qlcnic_adapter *adapter) -{ - u32 val; - - if (qlcnic_api_lock(adapter)) - goto err; - - val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT); - val &= ~((u32)0x1 << (adapter->portnum * 4)); - QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val); - - if (!(val & 0x11111111)) - QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_COLD); - - val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); - val &= ~((u32)0x3 << (adapter->portnum * 4)); - QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); - - qlcnic_api_unlock(adapter); -err: - adapter->fw_fail_cnt = 0; - clear_bit(__QLCNIC_START_FW, &adapter->state); - clear_bit(__QLCNIC_RESETTING, &adapter->state); -} - -static int -qlcnic_check_drv_state(struct qlcnic_adapter *adapter) -{ - int act, state; - - state = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); - act = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT); - - if (((state & 0x11111111) == (act & 0x11111111)) || - ((act & 0x11111111) == ((state >> 1) & 0x11111111))) - return 0; - else - return 1; -} - -static int -qlcnic_can_start_firmware(struct qlcnic_adapter *adapter) -{ - u32 val, prev_state; - int cnt = 0; - int portnum = adapter->portnum; - - if (qlcnic_api_lock(adapter)) - return -1; - - val = QLCRD32(adapter, QLCNIC_CRB_DEV_REF_COUNT); - if (!(val & ((int)0x1 << (portnum * 4)))) { - val |= ((u32)0x1 << (portnum * 4)); - QLCWR32(adapter, QLCNIC_CRB_DEV_REF_COUNT, val); - } else if (test_and_clear_bit(__QLCNIC_START_FW, &adapter->state)) { - goto start_fw; - } - - prev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); - - switch (prev_state) { - case QLCNIC_DEV_COLD: -start_fw: - QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_INITALIZING); - qlcnic_api_unlock(adapter); - return 1; - - case QLCNIC_DEV_READY: - qlcnic_api_unlock(adapter); - return 0; - - case QLCNIC_DEV_NEED_RESET: - val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); - val |= ((u32)0x1 << (portnum * 4)); - QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); - break; - - case QLCNIC_DEV_NEED_QUISCENT: - val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); - val |= ((u32)0x1 << ((portnum * 4) + 1)); - QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); - break; - - case QLCNIC_DEV_FAILED: - qlcnic_api_unlock(adapter); - return -1; - } - - qlcnic_api_unlock(adapter); - msleep(1000); - while ((QLCRD32(adapter, QLCNIC_CRB_DEV_STATE) != QLCNIC_DEV_READY) && - ++cnt < 20) - msleep(1000); - - if (cnt >= 20) - return -1; - - if (qlcnic_api_lock(adapter)) - return -1; - - val = QLCRD32(adapter, QLCNIC_CRB_DRV_STATE); - val &= ~((u32)0x3 << (portnum * 4)); - QLCWR32(adapter, QLCNIC_CRB_DRV_STATE, val); - - qlcnic_api_unlock(adapter); - - return 0; -} - -static void -qlcnic_fwinit_work(struct work_struct *work) -{ - struct qlcnic_adapter *adapter = container_of(work, - struct qlcnic_adapter, fw_work.work); - int dev_state; - - if (++adapter->fw_wait_cnt > FW_POLL_THRESH) - goto err_ret; - - if (test_bit(__QLCNIC_START_FW, &adapter->state)) { - - if (qlcnic_check_drv_state(adapter)) { - qlcnic_schedule_work(adapter, - qlcnic_fwinit_work, FW_POLL_DELAY); - return; - } - - if (!qlcnic_start_firmware(adapter)) { - qlcnic_schedule_work(adapter, qlcnic_attach_work, 0); - return; - } - - goto err_ret; - } - - dev_state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); - switch (dev_state) { - case QLCNIC_DEV_READY: - if (!qlcnic_start_firmware(adapter)) { - qlcnic_schedule_work(adapter, qlcnic_attach_work, 0); - return; - } - case QLCNIC_DEV_FAILED: - break; - - default: - qlcnic_schedule_work(adapter, - qlcnic_fwinit_work, 2 * FW_POLL_DELAY); - return; - } - -err_ret: - qlcnic_clr_all_drv_state(adapter); -} - -static void -qlcnic_detach_work(struct work_struct *work) -{ - struct qlcnic_adapter *adapter = container_of(work, - struct qlcnic_adapter, fw_work.work); - struct net_device *netdev = adapter->netdev; - u32 status; - - netif_device_detach(netdev); - - qlcnic_down(adapter, netdev); - - rtnl_lock(); - qlcnic_detach(adapter); - rtnl_unlock(); - - status = QLCRD32(adapter, QLCNIC_PEG_HALT_STATUS1); - - if (status & QLCNIC_RCODE_FATAL_ERROR) - goto err_ret; - - if (adapter->temp == QLCNIC_TEMP_PANIC) - goto err_ret; - - qlcnic_set_drv_state(adapter, adapter->dev_state); - - adapter->fw_wait_cnt = 0; - - qlcnic_schedule_work(adapter, qlcnic_fwinit_work, FW_POLL_DELAY); - - return; - -err_ret: - qlcnic_clr_all_drv_state(adapter); - -} - -static void -qlcnic_dev_request_reset(struct qlcnic_adapter *adapter) -{ - u32 state; - - if (qlcnic_api_lock(adapter)) - return; - - state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); - - if (state != QLCNIC_DEV_INITALIZING && state != QLCNIC_DEV_NEED_RESET) { - QLCWR32(adapter, QLCNIC_CRB_DEV_STATE, QLCNIC_DEV_NEED_RESET); - set_bit(__QLCNIC_START_FW, &adapter->state); - } - - qlcnic_api_unlock(adapter); -} - -static void -qlcnic_schedule_work(struct qlcnic_adapter *adapter, - work_func_t func, int delay) -{ - INIT_DELAYED_WORK(&adapter->fw_work, func); - schedule_delayed_work(&adapter->fw_work, round_jiffies_relative(delay)); -} - -static void -qlcnic_cancel_fw_work(struct qlcnic_adapter *adapter) -{ - while (test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) - msleep(10); - - cancel_delayed_work_sync(&adapter->fw_work); -} - -static void -qlcnic_attach_work(struct work_struct *work) -{ - struct qlcnic_adapter *adapter = container_of(work, - struct qlcnic_adapter, fw_work.work); - struct net_device *netdev = adapter->netdev; - int err; - - if (netif_running(netdev)) { - err = qlcnic_attach(adapter); - if (err) - goto done; - - err = qlcnic_up(adapter, netdev); - if (err) { - qlcnic_detach(adapter); - goto done; - } - - qlcnic_config_indev_addr(netdev, NETDEV_UP); - } - - netif_device_attach(netdev); - -done: - adapter->fw_fail_cnt = 0; - clear_bit(__QLCNIC_RESETTING, &adapter->state); - - if (!qlcnic_clr_drv_state(adapter)) - qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, - FW_POLL_DELAY); -} - -static int -qlcnic_check_health(struct qlcnic_adapter *adapter) -{ - u32 state = 0, heartbit; - struct net_device *netdev = adapter->netdev; - - if (qlcnic_check_temp(adapter)) - goto detach; - - if (adapter->need_fw_reset) { - qlcnic_dev_request_reset(adapter); - goto detach; - } - - state = QLCRD32(adapter, QLCNIC_CRB_DEV_STATE); - if (state == QLCNIC_DEV_NEED_RESET || state == QLCNIC_DEV_NEED_QUISCENT) - adapter->need_fw_reset = 1; - - heartbit = QLCRD32(adapter, QLCNIC_PEG_ALIVE_COUNTER); - if (heartbit != adapter->heartbit) { - adapter->heartbit = heartbit; - adapter->fw_fail_cnt = 0; - if (adapter->need_fw_reset) - goto detach; - return 0; - } - - if (++adapter->fw_fail_cnt < FW_FAIL_THRESH) - return 0; - - qlcnic_dev_request_reset(adapter); - - clear_bit(__QLCNIC_FW_ATTACHED, &adapter->state); - - dev_info(&netdev->dev, "firmware hang detected\n"); - -detach: - adapter->dev_state = (state == QLCNIC_DEV_NEED_QUISCENT) ? state : - QLCNIC_DEV_NEED_RESET; - - if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) && - !test_and_set_bit(__QLCNIC_RESETTING, &adapter->state)) - qlcnic_schedule_work(adapter, qlcnic_detach_work, 0); - - return 1; -} - -static void -qlcnic_fw_poll_work(struct work_struct *work) -{ - struct qlcnic_adapter *adapter = container_of(work, - struct qlcnic_adapter, fw_work.work); - - if (test_bit(__QLCNIC_RESETTING, &adapter->state)) - goto reschedule; - - - if (qlcnic_check_health(adapter)) - return; - -reschedule: - qlcnic_schedule_work(adapter, qlcnic_fw_poll_work, FW_POLL_DELAY); -} - -static ssize_t -qlcnic_store_bridged_mode(struct device *dev, - struct device_attribute *attr, const char *buf, size_t len) -{ - struct qlcnic_adapter *adapter = dev_get_drvdata(dev); - unsigned long new; - int ret = -EINVAL; - - if (!(adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG)) - goto err_out; - - if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) - goto err_out; - - if (strict_strtoul(buf, 2, &new)) - goto err_out; - - if (!qlcnic_config_bridged_mode(adapter, !!new)) - ret = len; - -err_out: - return ret; -} - -static ssize_t -qlcnic_show_bridged_mode(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct qlcnic_adapter *adapter = dev_get_drvdata(dev); - int bridged_mode = 0; - - if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG) - bridged_mode = !!(adapter->flags & QLCNIC_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 = qlcnic_show_bridged_mode, - .store = qlcnic_store_bridged_mode, -}; - -static ssize_t -qlcnic_store_diag_mode(struct device *dev, - struct device_attribute *attr, const char *buf, size_t len) -{ - struct qlcnic_adapter *adapter = dev_get_drvdata(dev); - unsigned long new; - - if (strict_strtoul(buf, 2, &new)) - return -EINVAL; - - if (!!new != !!(adapter->flags & QLCNIC_DIAG_ENABLED)) - adapter->flags ^= QLCNIC_DIAG_ENABLED; - - return len; -} - -static ssize_t -qlcnic_show_diag_mode(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct qlcnic_adapter *adapter = dev_get_drvdata(dev); - - return sprintf(buf, "%d\n", - !!(adapter->flags & QLCNIC_DIAG_ENABLED)); -} - -static struct device_attribute dev_attr_diag_mode = { - .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)}, - .show = qlcnic_show_diag_mode, - .store = qlcnic_store_diag_mode, -}; - -static int -qlcnic_sysfs_validate_crb(struct qlcnic_adapter *adapter, - loff_t offset, size_t size) -{ - if (!(adapter->flags & QLCNIC_DIAG_ENABLED)) - return -EIO; - - if ((size != 4) || (offset & 0x3)) - return -EINVAL; - - if (offset < QLCNIC_PCI_CRBSPACE) - return -EINVAL; - - return 0; -} - -static ssize_t -qlcnic_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 qlcnic_adapter *adapter = dev_get_drvdata(dev); - u32 data; - int ret; - - ret = qlcnic_sysfs_validate_crb(adapter, offset, size); - if (ret != 0) - return ret; - - data = QLCRD32(adapter, offset); - memcpy(buf, &data, size); - return size; -} - -static ssize_t -qlcnic_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 qlcnic_adapter *adapter = dev_get_drvdata(dev); - u32 data; - int ret; - - ret = qlcnic_sysfs_validate_crb(adapter, offset, size); - if (ret != 0) - return ret; - - memcpy(&data, buf, size); - QLCWR32(adapter, offset, data); - return size; -} - -static int -qlcnic_sysfs_validate_mem(struct qlcnic_adapter *adapter, - loff_t offset, size_t size) -{ - if (!(adapter->flags & QLCNIC_DIAG_ENABLED)) - return -EIO; - - if ((size != 8) || (offset & 0x7)) - return -EIO; - - return 0; -} - -static ssize_t -qlcnic_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 qlcnic_adapter *adapter = dev_get_drvdata(dev); - u64 data; - int ret; - - ret = qlcnic_sysfs_validate_mem(adapter, offset, size); - if (ret != 0) - return ret; - - if (qlcnic_pci_mem_read_2M(adapter, offset, &data)) - return -EIO; - - memcpy(buf, &data, size); - - return size; -} - -static ssize_t -qlcnic_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 qlcnic_adapter *adapter = dev_get_drvdata(dev); - u64 data; - int ret; - - ret = qlcnic_sysfs_validate_mem(adapter, offset, size); - if (ret != 0) - return ret; - - memcpy(&data, buf, size); - - if (qlcnic_pci_mem_write_2M(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 = qlcnic_sysfs_read_crb, - .write = qlcnic_sysfs_write_crb, -}; - -static struct bin_attribute bin_attr_mem = { - .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)}, - .size = 0, - .read = qlcnic_sysfs_read_mem, - .write = qlcnic_sysfs_write_mem, -}; - -static void -qlcnic_create_sysfs_entries(struct qlcnic_adapter *adapter) -{ - struct device *dev = &adapter->pdev->dev; - - if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG) - if (device_create_file(dev, &dev_attr_bridged_mode)) - dev_warn(dev, - "failed to create bridged_mode sysfs entry\n"); -} - -static void -qlcnic_remove_sysfs_entries(struct qlcnic_adapter *adapter) -{ - struct device *dev = &adapter->pdev->dev; - - if (adapter->capabilities & QLCNIC_FW_CAPABILITY_BDG) - device_remove_file(dev, &dev_attr_bridged_mode); -} - -static void -qlcnic_create_diag_entries(struct qlcnic_adapter *adapter) -{ - struct device *dev = &adapter->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 -qlcnic_remove_diag_entries(struct qlcnic_adapter *adapter) -{ - struct device *dev = &adapter->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_qlcnic_netdev(dev) (dev->netdev_ops == &qlcnic_netdev_ops) - -static int -qlcnic_destip_supported(struct qlcnic_adapter *adapter) -{ - if (adapter->ahw.cut_through) - return 0; - - return 1; -} - -static void -qlcnic_config_indev_addr(struct net_device *dev, unsigned long event) -{ - struct in_device *indev; - struct qlcnic_adapter *adapter = netdev_priv(dev); - - if (!qlcnic_destip_supported(adapter)) - return; - - indev = in_dev_get(dev); - if (!indev) - return; - - for_ifa(indev) { - switch (event) { - case NETDEV_UP: - qlcnic_config_ipaddr(adapter, - ifa->ifa_address, QLCNIC_IP_UP); - break; - case NETDEV_DOWN: - qlcnic_config_ipaddr(adapter, - ifa->ifa_address, QLCNIC_IP_DOWN); - break; - default: - break; - } - } endfor_ifa(indev); - - in_dev_put(indev); - return; -} - -static int qlcnic_netdev_event(struct notifier_block *this, - unsigned long event, void *ptr) -{ - struct qlcnic_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_qlcnic_netdev(dev)) - goto done; - - adapter = netdev_priv(dev); - - if (!adapter) - goto done; - - if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) - goto done; - - qlcnic_config_indev_addr(dev, event); -done: - return NOTIFY_DONE; -} - -static int -qlcnic_inetaddr_event(struct notifier_block *this, - unsigned long event, void *ptr) -{ - struct qlcnic_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_qlcnic_netdev(dev)) - goto done; - - adapter = netdev_priv(dev); - - if (!adapter || !qlcnic_destip_supported(adapter)) - goto done; - - if (adapter->is_up != QLCNIC_ADAPTER_UP_MAGIC) - goto done; - - switch (event) { - case NETDEV_UP: - qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_UP); - break; - case NETDEV_DOWN: - qlcnic_config_ipaddr(adapter, ifa->ifa_address, QLCNIC_IP_DOWN); - break; - default: - break; - } - -done: - return NOTIFY_DONE; -} - -static struct notifier_block qlcnic_netdev_cb = { - .notifier_call = qlcnic_netdev_event, -}; - -static struct notifier_block qlcnic_inetaddr_cb = { - .notifier_call = qlcnic_inetaddr_event, -}; -#else -static void -qlcnic_config_indev_addr(struct net_device *dev, unsigned long event) -{ } -#endif - -static struct pci_driver qlcnic_driver = { - .name = qlcnic_driver_name, - .id_table = qlcnic_pci_tbl, - .probe = qlcnic_probe, - .remove = __devexit_p(qlcnic_remove), -#ifdef CONFIG_PM - .suspend = qlcnic_suspend, - .resume = qlcnic_resume, -#endif - .shutdown = qlcnic_shutdown -}; - -static int __init qlcnic_init_module(void) -{ - - printk(KERN_INFO "%s\n", qlcnic_driver_string); - -#ifdef CONFIG_INET - register_netdevice_notifier(&qlcnic_netdev_cb); - register_inetaddr_notifier(&qlcnic_inetaddr_cb); -#endif - - - return pci_register_driver(&qlcnic_driver); -} - -module_init(qlcnic_init_module); - -static void __exit qlcnic_exit_module(void) -{ - - pci_unregister_driver(&qlcnic_driver); - -#ifdef CONFIG_INET - unregister_inetaddr_notifier(&qlcnic_inetaddr_cb); - unregister_netdevice_notifier(&qlcnic_netdev_cb); -#endif -} - -module_exit(qlcnic_exit_module); |