diff options
Diffstat (limited to 'drivers/net/netxen/netxen_nic_main.c')
| -rw-r--r-- | drivers/net/netxen/netxen_nic_main.c | 3100 |
1 files changed, 0 insertions, 3100 deletions
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c deleted file mode 100644 index 8c7fc32d781f..000000000000 --- a/drivers/net/netxen/netxen_nic_main.c +++ /dev/null @@ -1,3100 +0,0 @@ -/* - * Copyright (C) 2003 - 2009 NetXen, Inc. - * Copyright (C) 2009 - QLogic Corporation. - * All rights reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, - * MA 02111-1307, USA. - * - * The full GNU General Public License is included in this distribution - * in the file called "COPYING". - * - */ - -#include <linux/slab.h> -#include <linux/vmalloc.h> -#include <linux/interrupt.h> -#include "netxen_nic_hw.h" - -#include "netxen_nic.h" - -#include <linux/dma-mapping.h> -#include <linux/if_vlan.h> -#include <net/ip.h> -#include <linux/ipv6.h> -#include <linux/inetdevice.h> -#include <linux/sysfs.h> -#include <linux/aer.h> - -MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Intelligent Ethernet Driver"); -MODULE_LICENSE("GPL"); -MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID); -MODULE_FIRMWARE(NX_UNIFIED_ROMIMAGE_NAME); - -char netxen_nic_driver_name[] = "netxen_nic"; -static char netxen_nic_driver_string[] = "QLogic/NetXen Network Driver v" - NETXEN_NIC_LINUX_VERSIONID; - -static int port_mode = NETXEN_PORT_MODE_AUTO_NEG; - -/* Default to restricted 1G auto-neg mode */ -static int wol_port_mode = 5; - -static int use_msi = 1; - -static int use_msi_x = 1; - -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 netxen_nic_probe(struct pci_dev *pdev, - const struct pci_device_id *ent); -static void __devexit netxen_nic_remove(struct pci_dev *pdev); -static int netxen_nic_open(struct net_device *netdev); -static int netxen_nic_close(struct net_device *netdev); -static netdev_tx_t netxen_nic_xmit_frame(struct sk_buff *, - struct net_device *); -static void netxen_tx_timeout(struct net_device *netdev); -static void netxen_tx_timeout_task(struct work_struct *work); -static void netxen_fw_poll_work(struct work_struct *work); -static void netxen_schedule_work(struct netxen_adapter *adapter, - work_func_t func, int delay); -static void netxen_cancel_fw_work(struct netxen_adapter *adapter); -static int netxen_nic_poll(struct napi_struct *napi, int budget); -#ifdef CONFIG_NET_POLL_CONTROLLER -static void netxen_nic_poll_controller(struct net_device *netdev); -#endif - -static void netxen_create_sysfs_entries(struct netxen_adapter *adapter); -static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter); -static void netxen_create_diag_entries(struct netxen_adapter *adapter); -static void netxen_remove_diag_entries(struct netxen_adapter *adapter); - -static int nx_dev_request_aer(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_free_vlan_ip_list(struct netxen_adapter *); -static void netxen_restore_indev_addr(struct net_device *dev, unsigned long); -static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *dev, - struct rtnl_link_stats64 *stats); -static int netxen_nic_set_mac(struct net_device *netdev, void *p); - -/* PCI Device ID Table */ -#define ENTRY(device) \ - {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \ - .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0} - -static DEFINE_PCI_DEVICE_TABLE(netxen_pci_tbl) = { - ENTRY(PCI_DEVICE_ID_NX2031_10GXSR), - ENTRY(PCI_DEVICE_ID_NX2031_10GCX4), - ENTRY(PCI_DEVICE_ID_NX2031_4GCU), - ENTRY(PCI_DEVICE_ID_NX2031_IMEZ), - ENTRY(PCI_DEVICE_ID_NX2031_HMEZ), - ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT), - ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2), - ENTRY(PCI_DEVICE_ID_NX3031), - {0,} -}; - -MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); - -static uint32_t crb_cmd_producer[4] = { - CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1, - CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3 -}; - -void -netxen_nic_update_cmd_producer(struct netxen_adapter *adapter, - struct nx_host_tx_ring *tx_ring) -{ - NXWRIO(adapter, tx_ring->crb_cmd_producer, tx_ring->producer); -} - -static uint32_t crb_cmd_consumer[4] = { - CRB_CMD_CONSUMER_OFFSET, CRB_CMD_CONSUMER_OFFSET_1, - CRB_CMD_CONSUMER_OFFSET_2, CRB_CMD_CONSUMER_OFFSET_3 -}; - -static inline void -netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter, - struct nx_host_tx_ring *tx_ring) -{ - NXWRIO(adapter, tx_ring->crb_cmd_consumer, tx_ring->sw_consumer); -} - -static uint32_t msi_tgt_status[8] = { - ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, - ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3, - ISR_INT_TARGET_STATUS_F4, ISR_INT_TARGET_STATUS_F5, - ISR_INT_TARGET_STATUS_F6, ISR_INT_TARGET_STATUS_F7 -}; - -static struct netxen_legacy_intr_set legacy_intr[] = NX_LEGACY_INTR_CONFIG; - -static inline void netxen_nic_disable_int(struct nx_host_sds_ring *sds_ring) -{ - struct netxen_adapter *adapter = sds_ring->adapter; - - NXWRIO(adapter, sds_ring->crb_intr_mask, 0); -} - -static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring) -{ - struct netxen_adapter *adapter = sds_ring->adapter; - - NXWRIO(adapter, sds_ring->crb_intr_mask, 0x1); - - if (!NETXEN_IS_MSI_FAMILY(adapter)) - NXWRIO(adapter, adapter->tgt_mask_reg, 0xfbff); -} - -static int -netxen_alloc_sds_rings(struct netxen_recv_context *recv_ctx, int count) -{ - int size = sizeof(struct nx_host_sds_ring) * count; - - recv_ctx->sds_rings = kzalloc(size, GFP_KERNEL); - - return recv_ctx->sds_rings == NULL; -} - -static void -netxen_free_sds_rings(struct netxen_recv_context *recv_ctx) -{ - if (recv_ctx->sds_rings != NULL) - kfree(recv_ctx->sds_rings); - - recv_ctx->sds_rings = NULL; -} - -static int -netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev) -{ - int ring; - struct nx_host_sds_ring *sds_ring; - struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; - - if (netxen_alloc_sds_rings(recv_ctx, adapter->max_sds_rings)) - return -ENOMEM; - - for (ring = 0; ring < adapter->max_sds_rings; ring++) { - sds_ring = &recv_ctx->sds_rings[ring]; - netif_napi_add(netdev, &sds_ring->napi, - netxen_nic_poll, NETXEN_NETDEV_WEIGHT); - } - - return 0; -} - -static void -netxen_napi_del(struct netxen_adapter *adapter) -{ - int ring; - struct nx_host_sds_ring *sds_ring; - struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; - - for (ring = 0; ring < adapter->max_sds_rings; ring++) { - sds_ring = &recv_ctx->sds_rings[ring]; - netif_napi_del(&sds_ring->napi); - } - - netxen_free_sds_rings(&adapter->recv_ctx); -} - -static void -netxen_napi_enable(struct netxen_adapter *adapter) -{ - int ring; - struct nx_host_sds_ring *sds_ring; - struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; - - for (ring = 0; ring < adapter->max_sds_rings; ring++) { - sds_ring = &recv_ctx->sds_rings[ring]; - napi_enable(&sds_ring->napi); - netxen_nic_enable_int(sds_ring); - } -} - -static void -netxen_napi_disable(struct netxen_adapter *adapter) -{ - int ring; - struct nx_host_sds_ring *sds_ring; - struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; - - for (ring = 0; ring < adapter->max_sds_rings; ring++) { - sds_ring = &recv_ctx->sds_rings[ring]; - netxen_nic_disable_int(sds_ring); - napi_synchronize(&sds_ring->napi); - napi_disable(&sds_ring->napi); - } -} - -static int nx_set_dma_mask(struct netxen_adapter *adapter) -{ - struct pci_dev *pdev = adapter->pdev; - uint64_t mask, cmask; - - adapter->pci_using_dac = 0; - - mask = DMA_BIT_MASK(32); - cmask = DMA_BIT_MASK(32); - - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { -#ifndef CONFIG_IA64 - mask = DMA_BIT_MASK(35); -#endif - } else { - mask = DMA_BIT_MASK(39); - cmask = mask; - } - - if (pci_set_dma_mask(pdev, mask) == 0 && - pci_set_consistent_dma_mask(pdev, cmask) == 0) { - adapter->pci_using_dac = 1; - return 0; - } - - return -EIO; -} - -/* Update addressable range if firmware supports it */ -static int -nx_update_dma_mask(struct netxen_adapter *adapter) -{ - int change, shift, err; - uint64_t mask, old_mask, old_cmask; - struct pci_dev *pdev = adapter->pdev; - - change = 0; - - shift = NXRD32(adapter, CRB_DMA_SHIFT); - if (shift > 32) - return 0; - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && (shift > 9)) - change = 1; - else if ((adapter->ahw.revision_id == NX_P2_C1) && (shift <= 4)) - change = 1; - - if (change) { - old_mask = pdev->dma_mask; - old_cmask = pdev->dev.coherent_dma_mask; - - mask = DMA_BIT_MASK(32+shift); - - err = pci_set_dma_mask(pdev, mask); - if (err) - goto err_out; - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { - - err = pci_set_consistent_dma_mask(pdev, mask); - if (err) - goto err_out; - } - dev_info(&pdev->dev, "using %d-bit dma mask\n", 32+shift); - } - - return 0; - -err_out: - pci_set_dma_mask(pdev, old_mask); - pci_set_consistent_dma_mask(pdev, old_cmask); - return err; -} - -static int -netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) -{ - u32 val, timeout; - - if (first_boot == 0x55555555) { - /* This is the first boot after power up */ - NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); - - if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) - return 0; - - /* PCI bus master workaround */ - first_boot = NXRD32(adapter, NETXEN_PCIE_REG(0x4)); - if (!(first_boot & 0x4)) { - first_boot |= 0x4; - NXWR32(adapter, NETXEN_PCIE_REG(0x4), first_boot); - NXRD32(adapter, NETXEN_PCIE_REG(0x4)); - } - - /* This is the first boot after power up */ - first_boot = NXRD32(adapter, NETXEN_ROMUSB_GLB_SW_RESET); - if (first_boot != 0x80000f) { - /* clear the register for future unloads/loads */ - NXWR32(adapter, NETXEN_CAM_RAM(0x1fc), 0); - return -EIO; - } - - /* Start P2 boot loader */ - val = NXRD32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE); - NXWR32(adapter, NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1); - timeout = 0; - do { - msleep(1); - val = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); - - if (++timeout > 5000) - return -EIO; - - } while (val == NETXEN_BDINFO_MAGIC); - } - return 0; -} - -static void netxen_set_port_mode(struct netxen_adapter *adapter) -{ - u32 val, data; - - val = adapter->ahw.board_type; - if ((val == NETXEN_BRDTYPE_P3_HMEZ) || - (val == NETXEN_BRDTYPE_P3_XG_LOM)) { - if (port_mode == NETXEN_PORT_MODE_802_3_AP) { - data = NETXEN_PORT_MODE_802_3_AP; - NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); - } else if (port_mode == NETXEN_PORT_MODE_XG) { - data = NETXEN_PORT_MODE_XG; - NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); - } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) { - data = NETXEN_PORT_MODE_AUTO_NEG_1G; - NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); - } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) { - data = NETXEN_PORT_MODE_AUTO_NEG_XG; - NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); - } else { - data = NETXEN_PORT_MODE_AUTO_NEG; - NXWR32(adapter, NETXEN_PORT_MODE_ADDR, data); - } - - if ((wol_port_mode != NETXEN_PORT_MODE_802_3_AP) && - (wol_port_mode != NETXEN_PORT_MODE_XG) && - (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_1G) && - (wol_port_mode != NETXEN_PORT_MODE_AUTO_NEG_XG)) { - wol_port_mode = NETXEN_PORT_MODE_AUTO_NEG; - } - NXWR32(adapter, NETXEN_WOL_PORT_MODE, wol_port_mode); - } -} - -static void netxen_set_msix_bit(struct pci_dev *pdev, int enable) -{ - u32 control; - int pos; - - pos = pci_find_capability(pdev, PCI_CAP_ID_MSIX); - if (pos) { - pci_read_config_dword(pdev, pos, &control); - if (enable) - control |= PCI_MSIX_FLAGS_ENABLE; - else - control = 0; - pci_write_config_dword(pdev, pos, control); - } -} - -static void netxen_init_msix_entries(struct netxen_adapter *adapter, int count) -{ - int i; - - for (i = 0; i < count; i++) - adapter->msix_entries[i].entry = i; -} - -static int -netxen_read_mac_addr(struct netxen_adapter *adapter) -{ - int i; - unsigned char *p; - u64 mac_addr; - struct net_device *netdev = adapter->netdev; - struct pci_dev *pdev = adapter->pdev; - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { - if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0) - return -EIO; - } else { - if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0) - return -EIO; - } - - p = (unsigned char *)&mac_addr; - for (i = 0; i < 6; i++) - netdev->dev_addr[i] = *(p + 5 - i); - - memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len); - 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 netxen_nic_set_mac(struct net_device *netdev, void *p) -{ - struct netxen_adapter *adapter = netdev_priv(netdev); - struct sockaddr *addr = p; - - if (!is_valid_ether_addr(addr->sa_data)) - return -EINVAL; - - if (netif_running(netdev)) { - netif_device_detach(netdev); - netxen_napi_disable(adapter); - } - - memcpy(adapter->mac_addr, addr->sa_data, netdev->addr_len); - memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len); - adapter->macaddr_set(adapter, addr->sa_data); - - if (netif_running(netdev)) { - netif_device_attach(netdev); - netxen_napi_enable(adapter); - } - return 0; -} - -static void netxen_set_multicast_list(struct net_device *dev) -{ - struct netxen_adapter *adapter = netdev_priv(dev); - - adapter->set_multi(dev); -} - -static u32 netxen_fix_features(struct net_device *dev, u32 features) -{ - if (!(features & NETIF_F_RXCSUM)) { - netdev_info(dev, "disabling LRO as RXCSUM is off\n"); - - features &= ~NETIF_F_LRO; - } - - return features; -} - -static int netxen_set_features(struct net_device *dev, u32 features) -{ - struct netxen_adapter *adapter = netdev_priv(dev); - int hw_lro; - - if (!((dev->features ^ features) & NETIF_F_LRO)) - return 0; - - hw_lro = (features & NETIF_F_LRO) ? NETXEN_NIC_LRO_ENABLED - : NETXEN_NIC_LRO_DISABLED; - - if (netxen_config_hw_lro(adapter, hw_lro)) - return -EIO; - - if (!(features & NETIF_F_LRO) && netxen_send_lro_cleanup(adapter)) - return -EIO; - - return 0; -} - -static const struct net_device_ops netxen_netdev_ops = { - .ndo_open = netxen_nic_open, - .ndo_stop = netxen_nic_close, - .ndo_start_xmit = netxen_nic_xmit_frame, - .ndo_get_stats64 = netxen_nic_get_stats, - .ndo_validate_addr = eth_validate_addr, - .ndo_set_multicast_list = netxen_set_multicast_list, - .ndo_set_mac_address = netxen_nic_set_mac, - .ndo_change_mtu = netxen_nic_change_mtu, - .ndo_tx_timeout = netxen_tx_timeout, - .ndo_fix_features = netxen_fix_features, - .ndo_set_features = netxen_set_features, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = netxen_nic_poll_controller, -#endif -}; - -static void -netxen_setup_intr(struct netxen_adapter *adapter) -{ - struct netxen_legacy_intr_set *legacy_intrp; - struct pci_dev *pdev = adapter->pdev; - int err, num_msix; - - if (adapter->rss_supported) { - num_msix = (num_online_cpus() >= MSIX_ENTRIES_PER_ADAPTER) ? - MSIX_ENTRIES_PER_ADAPTER : 2; - } else - num_msix = 1; - - adapter->max_sds_rings = 1; - - adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED); - - if (adapter->ahw.revision_id >= NX_P3_B0) - legacy_intrp = &legacy_intr[adapter->ahw.pci_func]; - else - legacy_intrp = &legacy_intr[0]; - - adapter->int_vec_bit = legacy_intrp->int_vec_bit; - adapter->tgt_status_reg = netxen_get_ioaddr(adapter, - legacy_intrp->tgt_status_reg); - adapter->tgt_mask_reg = netxen_get_ioaddr(adapter, - legacy_intrp->tgt_mask_reg); - adapter->pci_int_reg = netxen_get_ioaddr(adapter, - legacy_intrp->pci_int_reg); - adapter->isr_int_vec = netxen_get_ioaddr(adapter, ISR_INT_VECTOR); - - if (adapter->ahw.revision_id >= NX_P3_B1) - adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, - ISR_INT_STATE_REG); - else - adapter->crb_int_state_reg = netxen_get_ioaddr(adapter, - CRB_INT_VECTOR); - - netxen_set_msix_bit(pdev, 0); - - if (adapter->msix_supported) { - - netxen_init_msix_entries(adapter, num_msix); - err = pci_enable_msix(pdev, adapter->msix_entries, num_msix); - if (err == 0) { - adapter->flags |= NETXEN_NIC_MSIX_ENABLED; - netxen_set_msix_bit(pdev, 1); - - if (adapter->rss_supported) - adapter->max_sds_rings = num_msix; - - dev_info(&pdev->dev, "using msi-x interrupts\n"); - return; - } - - if (err > 0) - pci_disable_msix(pdev); - - /* fall through for msi */ - } - - if (use_msi && !pci_enable_msi(pdev)) { - adapter->flags |= NETXEN_NIC_MSI_ENABLED; - adapter->tgt_status_reg = netxen_get_ioaddr(adapter, - msi_tgt_status[adapter->ahw.pci_func]); - dev_info(&pdev->dev, "using msi interrupts\n"); - adapter->msix_entries[0].vector = pdev->irq; - return; - } - - dev_info(&pdev->dev, "using legacy interrupts\n"); - adapter->msix_entries[0].vector = pdev->irq; -} - -static void -netxen_teardown_intr(struct netxen_adapter *adapter) -{ - if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) - pci_disable_msix(adapter->pdev); - if (adapter->flags & NETXEN_NIC_MSI_ENABLED) - pci_disable_msi(adapter->pdev); -} - -static void -netxen_cleanup_pci_map(struct netxen_adapter *adapter) -{ - if (adapter->ahw.db_base != NULL) - iounmap(adapter->ahw.db_base); - if (adapter->ahw.pci_base0 != NULL) - iounmap(adapter->ahw.pci_base0); - if (adapter->ahw.pci_base1 != NULL) - iounmap(adapter->ahw.pci_base1); - if (adapter->ahw.pci_base2 != NULL) - iounmap(adapter->ahw.pci_base2); -} - -static int -netxen_setup_pci_map(struct netxen_adapter *adapter) -{ - void __iomem *db_ptr = NULL; - - resource_size_t mem_base, db_base; - unsigned long mem_len, db_len = 0; - - struct pci_dev *pdev = adapter->pdev; - int pci_func = adapter->ahw.pci_func; - struct netxen_hardware_context *ahw = &adapter->ahw; - - int err = 0; - - /* - * Set the CRB window to invalid. If any register in window 0 is - * accessed it should set the window to 0 and then reset it to 1. - */ - adapter->ahw.crb_win = -1; - adapter->ahw.ocm_win = -1; - - /* remap phys address */ - mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ - mem_len = pci_resource_len(pdev, 0); - - /* 128 Meg of memory */ - if (mem_len == NETXEN_PCI_128MB_SIZE) { - - ahw->pci_base0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); - ahw->pci_base1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, - SECOND_PAGE_GROUP_SIZE); - ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, - THIRD_PAGE_GROUP_SIZE); - if (ahw->pci_base0 == NULL || ahw->pci_base1 == NULL || - ahw->pci_base2 == NULL) { - dev_err(&pdev->dev, "failed to map PCI bar 0\n"); - err = -EIO; - goto err_out; - } - - ahw->pci_len0 = FIRST_PAGE_GROUP_SIZE; - - } else if (mem_len == NETXEN_PCI_32MB_SIZE) { - - ahw->pci_base1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); - ahw->pci_base2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - - SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); - if (ahw->pci_base1 == NULL || ahw->pci_base2 == NULL) { - dev_err(&pdev->dev, "failed to map PCI bar 0\n"); - err = -EIO; - goto err_out; - } - - } else if (mem_len == NETXEN_PCI_2MB_SIZE) { - - ahw->pci_base0 = pci_ioremap_bar(pdev, 0); - if (ahw->pci_base0 == NULL) { - dev_err(&pdev->dev, "failed to map PCI bar 0\n"); - return -EIO; - } - ahw->pci_len0 = mem_len; - } else { - return -EIO; - } - - netxen_setup_hwops(adapter); - - dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); - - if (NX_IS_REVISION_P3P(adapter->ahw.revision_id)) { - adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, - NETXEN_PCIX_PS_REG(PCIX_OCM_WINDOW_REG(pci_func))); - - } else if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { - adapter->ahw.ocm_win_crb = netxen_get_ioaddr(adapter, - NETXEN_PCIX_PS_REG(PCIE_MN_WINDOW_REG(pci_func))); - } - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) - goto skip_doorbell; - - db_base = pci_resource_start(pdev, 4); /* doorbell is on bar 4 */ - db_len = pci_resource_len(pdev, 4); - - if (db_len == 0) { - printk(KERN_ERR "%s: doorbell is disabled\n", - netxen_nic_driver_name); - err = -EIO; - goto err_out; - } - - db_ptr = ioremap(db_base, NETXEN_DB_MAPSIZE_BYTES); - if (!db_ptr) { - printk(KERN_ERR "%s: Failed to allocate doorbell map.", - netxen_nic_driver_name); - err = -EIO; - goto err_out; - } - -skip_doorbell: - adapter->ahw.db_base = db_ptr; - adapter->ahw.db_len = db_len; - return 0; - -err_out: - netxen_cleanup_pci_map(adapter); - return err; -} - -static void -netxen_check_options(struct netxen_adapter *adapter) -{ - u32 fw_major, fw_minor, fw_build; - char brd_name[NETXEN_MAX_SHORT_NAME]; - char serial_num[32]; - int i, offset, val; - int *ptr32; - struct pci_dev *pdev = adapter->pdev; - - adapter->driver_mismatch = 0; - - ptr32 = (int *)&serial_num; - offset = NX_FW_SERIAL_NUM_OFFSET; - for (i = 0; i < 8; i++) { - if (netxen_rom_fast_read(adapter, offset, &val) == -1) { - dev_err(&pdev->dev, "error reading board info\n"); - adapter->driver_mismatch = 1; - return; - } - ptr32[i] = cpu_to_le32(val); - offset += sizeof(u32); - } - - fw_major = NXRD32(adapter, NETXEN_FW_VERSION_MAJOR); - fw_minor = NXRD32(adapter, NETXEN_FW_VERSION_MINOR); - fw_build = NXRD32(adapter, NETXEN_FW_VERSION_SUB); - - adapter->fw_version = NETXEN_VERSION_CODE(fw_major, fw_minor, fw_build); - - if (adapter->portnum == 0) { - get_brd_name_by_type(adapter->ahw.board_type, brd_name); - - pr_info("%s: %s Board S/N %s Chip rev 0x%x\n", - module_name(THIS_MODULE), - 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); - - 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 { - u32 flashed_ver = 0; - netxen_rom_fast_read(adapter, - NX_FW_VERSION_OFFSET, (int *)&flashed_ver); - flashed_ver = NETXEN_DECODE_VERSION(flashed_ver); - - if (flashed_ver >= NETXEN_VERSION_CODE(3, 4, 336)) { - switch (adapter->ahw.board_type) { - case NETXEN_BRDTYPE_P2_SB31_10G: - case NETXEN_BRDTYPE_P2_SB31_10G_CX4: - adapter->msix_supported = !!use_msi_x; - adapter->rss_supported = !!use_msi_x; - break; - default: - break; - } - } - } - - adapter->num_txd = MAX_CMD_DESCRIPTORS; - - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { - adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS; - adapter->max_rds_rings = 3; - } else { - adapter->num_lro_rxd = 0; - adapter->max_rds_rings = 2; - } -} - -static int -netxen_start_firmware(struct netxen_adapter *adapter) -{ - int val, err, first_boot; - struct pci_dev *pdev = adapter->pdev; - - /* required for NX2031 dummy dma */ - err = nx_set_dma_mask(adapter); - if (err) - return err; - - if (!netxen_can_start_firmware(adapter)) - goto wait_init; - - first_boot = NXRD32(adapter, NETXEN_CAM_RAM(0x1fc)); - - err = netxen_check_hw_init(adapter, first_boot); - if (err) { - dev_err(&pdev->dev, "error in init HW init sequence\n"); - return err; - } - - netxen_request_firmware(adapter); - - err = netxen_need_fw_reset(adapter); - if (err < 0) - goto err_out; - if (err == 0) - goto wait_init; - - if (first_boot != 0x55555555) { - NXWR32(adapter, CRB_CMDPEG_STATE, 0); - netxen_pinit_from_rom(adapter); - msleep(1); - } - - NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555); - NXWR32(adapter, NETXEN_PEG_HALT_STATUS1, 0); - NXWR32(adapter, NETXEN_PEG_HALT_STATUS2, 0); - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) - netxen_set_port_mode(adapter); - - err = netxen_load_firmware(adapter); - if (err) - goto err_out; - - netxen_release_firmware(adapter); - - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { - - /* Initialize multicast addr pool owners */ - val = 0x7654; - if (adapter->ahw.port_type == NETXEN_NIC_XGBE) - val |= 0x0f000000; - NXWR32(adapter, NETXEN_MAC_ADDR_CNTL_REG, val); - - } - - err = netxen_init_dummy_dma(adapter); - if (err) - goto err_out; - - /* - * Tell the hardware our version number. - */ - val = (_NETXEN_NIC_LINUX_MAJOR << 16) - | ((_NETXEN_NIC_LINUX_MINOR << 8)) - | (_NETXEN_NIC_LINUX_SUBVERSION); - NXWR32(adapter, CRB_DRIVER_VERSION, val); - -wait_init: - /* Handshake with the card before we register the devices. */ - err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); - if (err) { - netxen_free_dummy_dma(adapter); - goto err_out; - } - - NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_READY); - - nx_update_dma_mask(adapter); - - netxen_check_options(adapter); - - adapter->need_fw_reset = 0; - - /* fall through and release firmware */ - -err_out: - netxen_release_firmware(adapter); - return err; -} - -static int -netxen_nic_request_irq(struct netxen_adapter *adapter) -{ - irq_handler_t handler; - struct nx_host_sds_ring *sds_ring; - int err, ring; - - unsigned long flags = 0; - struct net_device *netdev = adapter->netdev; - struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; - - if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) - handler = netxen_msix_intr; - else if (adapter->flags & NETXEN_NIC_MSI_ENABLED) - handler = netxen_msi_intr; - else { - flags |= IRQF_SHARED; - handler = netxen_intr; - } - adapter->irq = netdev->irq; - - for (ring = 0; ring < adapter->max_sds_rings; ring++) { - sds_ring = &recv_ctx->sds_rings[ring]; - sprintf(sds_ring->name, "%s[%d]", netdev->name, ring); - err = request_irq(sds_ring->irq, handler, - flags, sds_ring->name, sds_ring); - if (err) - return err; - } - - return 0; -} - -static void -netxen_nic_free_irq(struct netxen_adapter *adapter) -{ - int ring; - struct nx_host_sds_ring *sds_ring; - - struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; - - for (ring = 0; ring < adapter->max_sds_rings; ring++) { - sds_ring = &recv_ctx->sds_rings[ring]; - free_irq(sds_ring->irq, sds_ring); - } -} - -static void -netxen_nic_init_coalesce_defaults(struct netxen_adapter *adapter) -{ - adapter->coal.flags = NETXEN_NIC_INTR_DEFAULT; - adapter->coal.normal.data.rx_time_us = - NETXEN_DEFAULT_INTR_COALESCE_RX_TIME_US; - adapter->coal.normal.data.rx_packets = - NETXEN_DEFAULT_INTR_COALESCE_RX_PACKETS; - adapter->coal.normal.data.tx_time_us = - NETXEN_DEFAULT_INTR_COALESCE_TX_TIME_US; - adapter->coal.normal.data.tx_packets = - NETXEN_DEFAULT_INTR_COALESCE_TX_PACKETS; -} - -/* with rtnl_lock */ -static int -__netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) -{ - int err; - - if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) - return -EIO; - - err = adapter->init_port(adapter, adapter->physical_port); - if (err) { - printk(KERN_ERR "%s: Failed to initialize port %d\n", - netxen_nic_driver_name, adapter->portnum); - return err; - } - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) - adapter->macaddr_set(adapter, adapter->mac_addr); - - adapter->set_multi(netdev); - adapter->set_mtu(adapter, netdev->mtu); - - adapter->ahw.linkup = 0; - - if (adapter->max_sds_rings > 1) - netxen_config_rss(adapter, 1); - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) - netxen_config_intr_coalesce(adapter); - - if (netdev->features & NETIF_F_LRO) - netxen_config_hw_lro(adapter, NETXEN_NIC_LRO_ENABLED); - - netxen_napi_enable(adapter); - - if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) - netxen_linkevent_request(adapter, 1); - else - netxen_nic_set_link_parameters(adapter); - - set_bit(__NX_DEV_UP, &adapter->state); - return 0; -} - -/* Usage: During resume and firmware recovery module.*/ - -static inline int -netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) -{ - int err = 0; - - rtnl_lock(); - if (netif_running(netdev)) - err = __netxen_nic_up(adapter, netdev); - rtnl_unlock(); - - return err; -} - -/* with rtnl_lock */ -static void -__netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) -{ - if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) - return; - - if (!test_and_clear_bit(__NX_DEV_UP, &adapter->state)) - return; - - smp_mb(); - spin_lock(&adapter->tx_clean_lock); - netif_carrier_off(netdev); - netif_tx_disable(netdev); - - if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) - netxen_linkevent_request(adapter, 0); - - if (adapter->stop_port) - adapter->stop_port(adapter); - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) - netxen_p3_free_mac_list(adapter); - - adapter->set_promisc(adapter, NETXEN_NIU_NON_PROMISC_MODE); - - netxen_napi_disable(adapter); - - netxen_release_tx_buffers(adapter); - spin_unlock(&adapter->tx_clean_lock); -} - -/* Usage: During suspend and firmware recovery module */ - -static inline void -netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) -{ - rtnl_lock(); - if (netif_running(netdev)) - __netxen_nic_down(adapter, netdev); - rtnl_unlock(); - -} - -static int -netxen_nic_attach(struct netxen_adapter *adapter) -{ - struct net_device *netdev = adapter->netdev; - struct pci_dev *pdev = adapter->pdev; - int err, ring; - struct nx_host_rds_ring *rds_ring; - struct nx_host_tx_ring *tx_ring; - - if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) - return 0; - - err = netxen_init_firmware(adapter); - if (err) - return err; - - err = netxen_napi_add(adapter, netdev); - if (err) - return err; - - err = netxen_alloc_sw_resources(adapter); - if (err) { - printk(KERN_ERR "%s: Error in setting sw resources\n", - netdev->name); - return err; - } - - err = netxen_alloc_hw_resources(adapter); - if (err) { - printk(KERN_ERR "%s: Error in setting hw resources\n", - netdev->name); - goto err_out_free_sw; - } - - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { - tx_ring = adapter->tx_ring; - tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter, - crb_cmd_producer[adapter->portnum]); - tx_ring->crb_cmd_consumer = netxen_get_ioaddr(adapter, - crb_cmd_consumer[adapter->portnum]); - - tx_ring->producer = 0; - tx_ring->sw_consumer = 0; - - netxen_nic_update_cmd_producer(adapter, tx_ring); - netxen_nic_update_cmd_consumer(adapter, tx_ring); - } - - for (ring = 0; ring < adapter->max_rds_rings; ring++) { - rds_ring = &adapter->recv_ctx.rds_rings[ring]; - netxen_post_rx_buffers(adapter, ring, rds_ring); - } - - err = netxen_nic_request_irq(adapter); - if (err) { - dev_err(&pdev->dev, "%s: failed to setup interrupt\n", - netdev->name); - goto err_out_free_rxbuf; - } - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) - netxen_nic_init_coalesce_defaults(adapter); - - netxen_create_sysfs_entries(adapter); - - adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; - return 0; - -err_out_free_rxbuf: - netxen_release_rx_buffers(adapter); - netxen_free_hw_resources(adapter); -err_out_free_sw: - netxen_free_sw_resources(adapter); - return err; -} - -static void -netxen_nic_detach(struct netxen_adapter *adapter) -{ - if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) - return; - - netxen_remove_sysfs_entries(adapter); - - netxen_free_hw_resources(adapter); - netxen_release_rx_buffers(adapter); - netxen_nic_free_irq(adapter); - netxen_napi_del(adapter); - netxen_free_sw_resources(adapter); - - adapter->is_up = 0; -} - -int -netxen_nic_reset_context(struct netxen_adapter *adapter) -{ - int err = 0; - struct net_device *netdev = adapter->netdev; - - if (test_and_set_bit(__NX_RESETTING, &adapter->state)) - return -EBUSY; - - if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { - - netif_device_detach(netdev); - - if (netif_running(netdev)) - __netxen_nic_down(adapter, netdev); - - netxen_nic_detach(adapter); - - if (netif_running(netdev)) { - err = netxen_nic_attach(adapter); - if (!err) - err = __netxen_nic_up(adapter, netdev); - - if (err) - goto done; - } - - netif_device_attach(netdev); - } - -done: - clear_bit(__NX_RESETTING, &adapter->state); - return err; -} - -static int -netxen_setup_netdev(struct netxen_adapter *adapter, - struct net_device *netdev) -{ - int err = 0; - struct pci_dev *pdev = adapter->pdev; - - adapter->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 = 5*HZ; - - netxen_nic_change_mtu(netdev, netdev->mtu); - - SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); - - netdev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO | - NETIF_F_RXCSUM; - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) - netdev->hw_features |= NETIF_F_IPV6_CSUM | NETIF_F_TSO6; - - netdev->vlan_features |= netdev->hw_features; - - if (adapter->pci_using_dac) { - netdev->features |= NETIF_F_HIGHDMA; - netdev->vlan_features |= NETIF_F_HIGHDMA; - } - - if (adapter->capabilities & NX_FW_CAPABILITY_FVLANTX) - netdev->hw_features |= NETIF_F_HW_VLAN_TX; - - if (adapter->capabilities & NX_FW_CAPABILITY_HW_LRO) - netdev->hw_features |= NETIF_F_LRO; - - netdev->features |= netdev->hw_features; - - 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); - - err = register_netdev(netdev); - if (err) { - dev_err(&pdev->dev, "failed to register net device\n"); - return err; - } - - return 0; -} - -#ifdef CONFIG_PCIEAER -static void netxen_mask_aer_correctable(struct netxen_adapter *adapter) -{ - struct pci_dev *pdev = adapter->pdev; - struct pci_dev *root = pdev->bus->self; - u32 aer_pos; - - if (adapter->ahw.board_type != NETXEN_BRDTYPE_P3_4_GB_MM && - adapter->ahw.board_type != NETXEN_BRDTYPE_P3_10G_TP) - return; - - if (root->pcie_type != PCI_EXP_TYPE_ROOT_PORT) - return; - - aer_pos = pci_find_ext_capability(root, PCI_EXT_CAP_ID_ERR); - if (!aer_pos) - return; - - pci_write_config_dword(root, aer_pos + PCI_ERR_COR_MASK, 0xffff); -} -#endif - -static int __devinit -netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) -{ - struct net_device *netdev = NULL; - struct netxen_adapter *adapter = NULL; - int i = 0, err; - int pci_func_id = PCI_FUNC(pdev->devfn); - uint8_t revision_id; - u32 val; - - if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) { - pr_warning("%s: chip revisions between 0x%x-0x%x " - "will not be enabled.\n", - module_name(THIS_MODULE), NX_P3_A0, NX_P3_B1); - return -ENODEV; - } - - if ((err = pci_enable_device(pdev))) - return err; - - if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { - err = -ENODEV; - goto err_out_disable_pdev; - } - - if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) - goto err_out_disable_pdev; - - if (NX_IS_REVISION_P3(pdev->revision)) - pci_enable_pcie_error_reporting(pdev); - - pci_set_master(pdev); - - netdev = alloc_etherdev(sizeof(struct netxen_adapter)); - if(!netdev) { - dev_err(&pdev->dev, "failed to allocate net_device\n"); - err = -ENOMEM; - goto err_out_free_res; - } - - SET_NETDEV_DEV(netdev, &pdev->dev); - - adapter = netdev_priv(netdev); - adapter->netdev = netdev; - adapter->pdev = pdev; - adapter->ahw.pci_func = pci_func_id; - - revision_id = pdev->revision; - adapter->ahw.revision_id = revision_id; - - rwlock_init(&adapter->ahw.crb_lock); - spin_lock_init(&adapter->ahw.mem_lock); - - spin_lock_init(&adapter->tx_clean_lock); - INIT_LIST_HEAD(&adapter->mac_list); - INIT_LIST_HEAD(&adapter->vlan_ip_list); - - err = netxen_setup_pci_map(adapter); - if (err) - goto err_out_free_netdev; - - /* This will be reset for mezz cards */ - adapter->portnum = pci_func_id; - - err = netxen_nic_get_board_info(adapter); - if (err) { - dev_err(&pdev->dev, "Error getting board config info.\n"); - goto err_out_iounmap; - } - -#ifdef CONFIG_PCIEAER - netxen_mask_aer_correctable(adapter); -#endif - - /* Mezz cards have PCI function 0,2,3 enabled */ - switch (adapter->ahw.board_type) { - case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: - case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: - if (pci_func_id >= 2) - adapter->portnum = pci_func_id - 2; - break; - default: - break; - } - - err = netxen_check_flash_fw_compatibility(adapter); - if (err) - goto err_out_iounmap; - - if (adapter->portnum == 0) { - val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); - if (val != 0xffffffff && val != 0) { - NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0); - adapter->need_fw_reset = 1; - } - } - - err = netxen_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; - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) { - i = NXRD32(adapter, CRB_V2P(adapter->portnum)); - if (i != 0x55555555) - adapter->physical_port = i; - } - - netxen_nic_clear_stats(adapter); - - netxen_setup_intr(adapter); - - err = netxen_setup_netdev(adapter, netdev); - if (err) - goto err_out_disable_msi; - - pci_set_drvdata(pdev, adapter); - - netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); - - switch (adapter->ahw.port_type) { - case NETXEN_NIC_GBE: - dev_info(&adapter->pdev->dev, "%s: GbE port initialized\n", - adapter->netdev->name); - break; - case NETXEN_NIC_XGBE: - dev_info(&adapter->pdev->dev, "%s: XGbE port initialized\n", - adapter->netdev->name); - break; - } - - netxen_create_diag_entries(adapter); - - return 0; - -err_out_disable_msi: - netxen_teardown_intr(adapter); - - netxen_free_dummy_dma(adapter); - -err_out_decr_ref: - nx_decr_dev_ref_cnt(adapter); - -err_out_iounmap: - netxen_cleanup_pci_map(adapter); - -err_out_free_netdev: - free_netdev(netdev); - -err_out_free_res: - pci_release_regions(pdev); - -err_out_disable_pdev: - pci_set_drvdata(pdev, NULL); - pci_disable_device(pdev); - return err; -} - -static void __devexit netxen_nic_remove(struct pci_dev *pdev) -{ - struct netxen_adapter *adapter; - struct net_device *netdev; - - adapter = pci_get_drvdata(pdev); - if (adapter == NULL) - return; - - netdev = adapter->netdev; - - netxen_cancel_fw_work(adapter); - - unregister_netdev(netdev); - - cancel_work_sync(&adapter->tx_timeout_task); - - netxen_free_vlan_ip_list(adapter); - netxen_nic_detach(adapter); - - nx_decr_dev_ref_cnt(adapter); - - if (adapter->portnum == 0) - netxen_free_dummy_dma(adapter); - - clear_bit(__NX_RESETTING, &adapter->state); - - netxen_teardown_intr(adapter); - - netxen_remove_diag_entries(adapter); - - netxen_cleanup_pci_map(adapter); - - netxen_release_firmware(adapter); - - if (NX_IS_REVISION_P3(pdev->revision)) - pci_disable_pcie_error_reporting(pdev); - - pci_release_regions(pdev); - pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); - - free_netdev(netdev); -} - -static void netxen_nic_detach_func(struct netxen_adapter *adapter) -{ - struct net_device *netdev = adapter->netdev; - - netif_device_detach(netdev); - - netxen_cancel_fw_work(adapter); - - if (netif_running(netdev)) - netxen_nic_down(adapter, netdev); - - cancel_work_sync(&adapter->tx_timeout_task); - - netxen_nic_detach(adapter); - - if (adapter->portnum == 0) - netxen_free_dummy_dma(adapter); - - nx_decr_dev_ref_cnt(adapter); - - clear_bit(__NX_RESETTING, &adapter->state); -} - -static int netxen_nic_attach_func(struct pci_dev *pdev) -{ - struct netxen_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 = netxen_start_firmware(adapter); - if (err) { - dev_err(&pdev->dev, "failed to start firmware\n"); - return err; - } - - if (netif_running(netdev)) { - err = netxen_nic_attach(adapter); - if (err) - goto err_out; - - err = netxen_nic_up(adapter, netdev); - if (err) - goto err_out_detach; - - netxen_restore_indev_addr(netdev, NETDEV_UP); - } - - netif_device_attach(netdev); - netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); - return 0; - -err_out_detach: - netxen_nic_detach(adapter); -err_out: - nx_decr_dev_ref_cnt(adapter); - return err; -} - -static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev, - pci_channel_state_t state) -{ - struct netxen_adapter *adapter = pci_get_drvdata(pdev); - - if (state == pci_channel_io_perm_failure) - return PCI_ERS_RESULT_DISCONNECT; - - if (nx_dev_request_aer(adapter)) - return PCI_ERS_RESULT_RECOVERED; - - netxen_nic_detach_func(adapter); - - pci_disable_device(pdev); - - return PCI_ERS_RESULT_NEED_RESET; -} - -static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev) -{ - int err = 0; - - err = netxen_nic_attach_func(pdev); - - return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED; -} - -static void netxen_io_resume(struct pci_dev *pdev) -{ - pci_cleanup_aer_uncorrect_error_status(pdev); -} - -static void netxen_nic_shutdown(struct pci_dev *pdev) -{ - struct netxen_adapter *adapter = pci_get_drvdata(pdev); - - netxen_nic_detach_func(adapter); - - if (pci_save_state(pdev)) - return; - - if (netxen_nic_wol_supported(adapter)) { - pci_enable_wake(pdev, PCI_D3cold, 1); - pci_enable_wake(pdev, PCI_D3hot, 1); - } - - pci_disable_device(pdev); -} - -#ifdef CONFIG_PM -static int -netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state) -{ - struct netxen_adapter *adapter = pci_get_drvdata(pdev); - int retval; - - netxen_nic_detach_func(adapter); - - retval = pci_save_state(pdev); - if (retval) - return retval; - - if (netxen_nic_wol_supported(adapter)) { - pci_enable_wake(pdev, PCI_D3cold, 1); - pci_enable_wake(pdev, PCI_D3hot, 1); - } - - pci_disable_device(pdev); - pci_set_power_state(pdev, pci_choose_state(pdev, state)); - - return 0; -} - -static int -netxen_nic_resume(struct pci_dev *pdev) -{ - return netxen_nic_attach_func(pdev); -} -#endif - -static int netxen_nic_open(struct net_device *netdev) -{ - struct netxen_adapter *adapter = netdev_priv(netdev); - int err = 0; - - if (adapter->driver_mismatch) - return -EIO; - - err = netxen_nic_attach(adapter); - if (err) - return err; - - err = __netxen_nic_up(adapter, netdev); - if (err) - goto err_out; - - netif_start_queue(netdev); - - return 0; - -err_out: - netxen_nic_detach(adapter); - return err; -} - -/* - * netxen_nic_close - Disables a network interface entry point - */ -static int netxen_nic_close(struct net_device *netdev) -{ - struct netxen_adapter *adapter = netdev_priv(netdev); - - __netxen_nic_down(adapter, netdev); - return 0; -} - -static void -netxen_tso_check(struct net_device *netdev, - struct nx_host_tx_ring *tx_ring, - struct cmd_desc_type0 *first_desc, - struct sk_buff *skb) -{ - u8 opcode = TX_ETHER_PKT; - __be16 protocol = skb->protocol; - u16 flags = 0, vid = 0; - u32 producer; - int copied, offset, copy_len, hdr_len = 0, tso = 0, vlan_oob = 0; - struct cmd_desc_type0 *hwdesc; - struct vlan_ethhdr *vh; - - if (protocol == cpu_to_be16(ETH_P_8021Q)) { - - vh = (struct vlan_ethhdr *)skb->data; - protocol = vh->h_vlan_encapsulated_proto; - flags = FLAGS_VLAN_TAGGED; - - } else if (vlan_tx_tag_present(skb)) { - - flags = FLAGS_VLAN_OOB; - vid = vlan_tx_tag_get(skb); - netxen_set_tx_vlan_tci(first_desc, vid); - vlan_oob = 1; - } - - if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && - skb_shinfo(skb)->gso_size > 0) { - - hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); - - first_desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); - first_desc->total_hdr_length = hdr_len; - if (vlan_oob) { - first_desc->total_hdr_length += VLAN_HLEN; - first_desc->tcp_hdr_offset = VLAN_HLEN; - first_desc->ip_hdr_offset = VLAN_HLEN; - /* Only in case of TSO on vlan device */ - flags |= FLAGS_VLAN_TAGGED; - } - - opcode = (protocol == cpu_to_be16(ETH_P_IPV6)) ? - TX_TCP_LSO6 : TX_TCP_LSO; - tso = 1; - - } else if (skb->ip_summed == CHECKSUM_PARTIAL) { - u8 l4proto; - - if (protocol == cpu_to_be16(ETH_P_IP)) { - l4proto = ip_hdr(skb)->protocol; - - if (l4proto == IPPROTO_TCP) - opcode = TX_TCP_PKT; - else if(l4proto == IPPROTO_UDP) - opcode = TX_UDP_PKT; - } else if (protocol == cpu_to_be16(ETH_P_IPV6)) { - l4proto = ipv6_hdr(skb)->nexthdr; - - if (l4proto == IPPROTO_TCP) - opcode = TX_TCPV6_PKT; - else if(l4proto == IPPROTO_UDP) - opcode = TX_UDPV6_PKT; - } - } - - first_desc->tcp_hdr_offset += skb_transport_offset(skb); - first_desc->ip_hdr_offset += skb_network_offset(skb); - netxen_set_tx_flags_opcode(first_desc, flags, opcode); - - if (!tso) - return; - - /* For LSO, we need to copy the MAC/IP/TCP headers into - * the descriptor ring - */ - producer = tx_ring->producer; - copied = 0; - offset = 2; - - if (vlan_oob) { - /* Create a TSO vlan header template for firmware */ - - hwdesc = &tx_ring->desc_head[producer]; - tx_ring->cmd_buf_arr[producer].skb = NULL; - - copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, - hdr_len + VLAN_HLEN); - - vh = (struct vlan_ethhdr *)((char *)hwdesc + 2); - skb_copy_from_linear_data(skb, vh, 12); - vh->h_vlan_proto = htons(ETH_P_8021Q); - vh->h_vlan_TCI = htons(vid); - skb_copy_from_linear_data_offset(skb, 12, - (char *)vh + 16, copy_len - 16); - - copied = copy_len - VLAN_HLEN; - offset = 0; - - producer = get_next_index(producer, tx_ring->num_desc); - } - - while (copied < hdr_len) { - - copy_len = min((int)sizeof(struct cmd_desc_type0) - offset, - (hdr_len - copied)); - - hwdesc = &tx_ring->desc_head[producer]; - tx_ring->cmd_buf_arr[producer].skb = NULL; - - skb_copy_from_linear_data_offset(skb, copied, - (char *)hwdesc + offset, copy_len); - - copied += copy_len; - offset = 0; - - producer = get_next_index(producer, tx_ring->num_desc); - } - - tx_ring->producer = producer; - barrier(); -} - -static int -netxen_map_tx_skb(struct pci_dev *pdev, - struct sk_buff *skb, struct netxen_cmd_buffer *pbuf) -{ - struct netxen_skb_frag *nf; - struct skb_frag_struct *frag; - int i, nr_frags; - dma_addr_t map; - - nr_frags = skb_shinfo(skb)->nr_frags; - nf = &pbuf->frag_array[0]; - - map = pci_map_single(pdev, skb->data, - skb_headlen(skb), PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(pdev, map)) - goto out_err; - - nf->dma = map; - nf->length = skb_headlen(skb); - - for (i = 0; i < nr_frags; i++) { - frag = &skb_shinfo(skb)->frags[i]; - nf = &pbuf->frag_array[i+1]; - - map = pci_map_page(pdev, frag->page, frag->page_offset, - frag->size, PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(pdev, map)) - goto unwind; - - nf->dma = map; - nf->length = frag->size; - } - - return 0; - -unwind: - while (--i >= 0) { - nf = &pbuf->frag_array[i+1]; - pci_unmap_page(pdev, nf->dma, nf->length, PCI_DMA_TODEVICE); - } - - nf = &pbuf->frag_array[0]; - pci_unmap_single(pdev, nf->dma, skb_headlen(skb), PCI_DMA_TODEVICE); - -out_err: - return -ENOMEM; -} - -static inline void -netxen_clear_cmddesc(u64 *desc) -{ - desc[0] = 0ULL; - desc[2] = 0ULL; -} - -static netdev_tx_t -netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) -{ - struct netxen_adapter *adapter = netdev_priv(netdev); - struct nx_host_tx_ring *tx_ring = adapter->tx_ring; - struct netxen_cmd_buffer *pbuf; - struct netxen_skb_frag *buffrag; - struct cmd_desc_type0 *hwdesc, *first_desc; - struct pci_dev *pdev; - int i, k; - int delta = 0; - struct skb_frag_struct *frag; - - u32 producer; - int frag_count, no_of_desc; - u32 num_txd = tx_ring->num_desc; - - frag_count = skb_shinfo(skb)->nr_frags + 1; - - /* 14 frags supported for normal packet and - * 32 frags supported for TSO packet - */ - if (!skb_is_gso(skb) && frag_count > NETXEN_MAX_FRAGS_PER_TX) { - - for (i = 0; i < (frag_count - NETXEN_MAX_FRAGS_PER_TX); i++) { - frag = &skb_shinfo(skb)->frags[i]; - delta += frag->size; - } - - if (!__pskb_pull_tail(skb, delta)) - goto drop_packet; - - frag_count = 1 + skb_shinfo(skb)->nr_frags; - } - /* 4 fragments per cmd des */ - no_of_desc = (frag_count + 3) >> 2; - - if (unlikely(netxen_tx_avail(tx_ring) <= TX_STOP_THRESH)) { - netif_stop_queue(netdev); - smp_mb(); - if (netxen_tx_avail(tx_ring) > TX_STOP_THRESH) - netif_start_queue(netdev); - else - return NETDEV_TX_BUSY; - } - - producer = tx_ring->producer; - pbuf = &tx_ring->cmd_buf_arr[producer]; - - pdev = adapter->pdev; - - if (netxen_map_tx_skb(pdev, skb, pbuf)) - goto drop_packet; - - pbuf->skb = skb; - pbuf->frag_count = frag_count; - - first_desc = hwdesc = &tx_ring->desc_head[producer]; - netxen_clear_cmddesc((u64 *)hwdesc); - - netxen_set_tx_frags_len(first_desc, frag_count, skb->len); - netxen_set_tx_port(first_desc, adapter->portnum); - - for (i = 0; i < frag_count; i++) { - - k = i % 4; - - if ((k == 0) && (i > 0)) { - /* move to next desc.*/ - producer = get_next_index(producer, num_txd); - hwdesc = &tx_ring->desc_head[producer]; - netxen_clear_cmddesc((u64 *)hwdesc); - tx_ring->cmd_buf_arr[producer].skb = NULL; - } - - buffrag = &pbuf->frag_array[i]; - - hwdesc->buffer_length[k] = cpu_to_le16(buffrag->length); - switch (k) { - case 0: - hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); - break; - case 1: - hwdesc->addr_buffer2 = cpu_to_le64(buffrag->dma); - break; - case 2: - hwdesc->addr_buffer3 = cpu_to_le64(buffrag->dma); - break; - case 3: - hwdesc->addr_buffer4 = cpu_to_le64(buffrag->dma); - break; - } - } - - tx_ring->producer = get_next_index(producer, num_txd); - - netxen_tso_check(netdev, tx_ring, first_desc, skb); - - adapter->stats.txbytes += skb->len; - adapter->stats.xmitcalled++; - - netxen_nic_update_cmd_producer(adapter, tx_ring); - - return NETDEV_TX_OK; - -drop_packet: - adapter->stats.txdropped++; - dev_kfree_skb_any(skb); - return NETDEV_TX_OK; -} - -static int netxen_nic_check_temp(struct netxen_adapter *adapter) -{ - struct net_device *netdev = adapter->netdev; - uint32_t temp, temp_state, temp_val; - int rv = 0; - - temp = NXRD32(adapter, CRB_TEMP_STATE); - - temp_state = nx_get_temp_state(temp); - temp_val = nx_get_temp_val(temp); - - if (temp_state == NX_TEMP_PANIC) { - printk(KERN_ALERT - "%s: Device temperature %d degrees C exceeds" - " maximum allowed. Hardware has been shut down.\n", - netdev->name, temp_val); - rv = 1; - } else if (temp_state == NX_TEMP_WARN) { - if (adapter->temp == NX_TEMP_NORMAL) { - printk(KERN_ALERT - "%s: Device temperature %d degrees C " - "exceeds operating range." - " Immediate action needed.\n", - netdev->name, temp_val); - } - } else { - if (adapter->temp == NX_TEMP_WARN) { - printk(KERN_INFO - "%s: Device temperature is now %d degrees C" - " in normal range.\n", netdev->name, - temp_val); - } - } - adapter->temp = temp_state; - return rv; -} - -void netxen_advert_link_change(struct netxen_adapter *adapter, int linkup) -{ - struct net_device *netdev = adapter->netdev; - - if (adapter->ahw.linkup && !linkup) { - printk(KERN_INFO "%s: %s NIC Link is down\n", - netxen_nic_driver_name, netdev->name); - adapter->ahw.linkup = 0; - if (netif_running(netdev)) { - netif_carrier_off(netdev); - netif_stop_queue(netdev); - } - adapter->link_changed = !adapter->has_link_events; - } else if (!adapter->ahw.linkup && linkup) { - printk(KERN_INFO "%s: %s NIC Link is up\n", - netxen_nic_driver_name, netdev->name); - adapter->ahw.linkup = 1; - if (netif_running(netdev)) { - netif_carrier_on(netdev); - netif_wake_queue(netdev); - } - adapter->link_changed = !adapter->has_link_events; - } -} - -static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) -{ - u32 val, port, linkup; - - port = adapter->physical_port; - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { - val = NXRD32(adapter, CRB_XG_STATE_P3); - val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); - linkup = (val == XG_LINK_UP_P3); - } else { - val = NXRD32(adapter, CRB_XG_STATE); - val = (val >> port*8) & 0xff; - linkup = (val == XG_LINK_UP); - } - - netxen_advert_link_change(adapter, linkup); -} - -static void netxen_tx_timeout(struct net_device *netdev) -{ - struct netxen_adapter *adapter = netdev_priv(netdev); - - if (test_bit(__NX_RESETTING, &adapter->state)) - return; - - dev_err(&netdev->dev, "transmit timeout, resetting.\n"); - schedule_work(&adapter->tx_timeout_task); -} - -static void netxen_tx_timeout_task(struct work_struct *work) -{ - struct netxen_adapter *adapter = - container_of(work, struct netxen_adapter, tx_timeout_task); - - if (!netif_running(adapter->netdev)) - return; - - if (test_and_set_bit(__NX_RESETTING, &adapter->state)) - return; - - if (++adapter->tx_timeo_cnt >= NX_MAX_TX_TIMEOUTS) - goto request_reset; - - rtnl_lock(); - 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); - - clear_bit(__NX_RESETTING, &adapter->state); - } else { - clear_bit(__NX_RESETTING, &adapter->state); - if (netxen_nic_reset_context(adapter)) { - rtnl_unlock(); - goto request_reset; - } - } - adapter->netdev->trans_start = jiffies; - rtnl_unlock(); - return; - -request_reset: - adapter->need_fw_reset = 1; - clear_bit(__NX_RESETTING, &adapter->state); -} - -static struct rtnl_link_stats64 *netxen_nic_get_stats(struct net_device *netdev, - struct rtnl_link_stats64 *stats) -{ - struct netxen_adapter *adapter = netdev_priv(netdev); - - stats->rx_packets = adapter->stats.rx_pkts + adapter->stats.lro_pkts; - stats->tx_packets = adapter->stats.xmitfinished; - stats->rx_bytes = adapter->stats.rxbytes; - stats->tx_bytes = adapter->stats.txbytes; - stats->rx_dropped = adapter->stats.rxdropped; - stats->tx_dropped = adapter->stats.txdropped; - - return stats; -} - -static irqreturn_t netxen_intr(int irq, void *data) -{ - struct nx_host_sds_ring *sds_ring = data; - struct netxen_adapter *adapter = sds_ring->adapter; - u32 status = 0; - - status = readl(adapter->isr_int_vec); - - if (!(status & adapter->int_vec_bit)) - return IRQ_NONE; - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { - /* check interrupt state machine, to be sure */ - status = readl(adapter->crb_int_state_reg); - if (!ISR_LEGACY_INT_TRIGGERED(status)) - return IRQ_NONE; - - } else { - unsigned long our_int = 0; - - our_int = readl(adapter->crb_int_state_reg); - - /* not our interrupt */ - if (!test_and_clear_bit((7 + adapter->portnum), &our_int)) - return IRQ_NONE; - - /* claim interrupt */ - writel((our_int & 0xffffffff), adapter->crb_int_state_reg); - - /* clear interrupt */ - netxen_nic_disable_int(sds_ring); - } - - writel(0xffffffff, adapter->tgt_status_reg); - /* read twice to ensure write is flushed */ - readl(adapter->isr_int_vec); - readl(adapter->isr_int_vec); - - napi_schedule(&sds_ring->napi); - - return IRQ_HANDLED; -} - -static irqreturn_t netxen_msi_intr(int irq, void *data) -{ - struct nx_host_sds_ring *sds_ring = data; - struct netxen_adapter *adapter = sds_ring->adapter; - - /* clear interrupt */ - writel(0xffffffff, adapter->tgt_status_reg); - - napi_schedule(&sds_ring->napi); - return IRQ_HANDLED; -} - -static irqreturn_t netxen_msix_intr(int irq, void *data) -{ - struct nx_host_sds_ring *sds_ring = data; - - napi_schedule(&sds_ring->napi); - return IRQ_HANDLED; -} - -static int netxen_nic_poll(struct napi_struct *napi, int budget) -{ - struct nx_host_sds_ring *sds_ring = - container_of(napi, struct nx_host_sds_ring, napi); - - struct netxen_adapter *adapter = sds_ring->adapter; - - int tx_complete; - int work_done; - - tx_complete = netxen_process_cmd_ring(adapter); - - work_done = netxen_process_rcv_ring(sds_ring, budget); - - if ((work_done < budget) && tx_complete) { - napi_complete(&sds_ring->napi); - if (test_bit(__NX_DEV_UP, &adapter->state)) - netxen_nic_enable_int(sds_ring); - } - - return work_done; -} - -#ifdef CONFIG_NET_POLL_CONTROLLER -static void netxen_nic_poll_controller(struct net_device *netdev) -{ - int ring; - struct nx_host_sds_ring *sds_ring; - struct netxen_adapter *adapter = netdev_priv(netdev); - struct netxen_recv_context *recv_ctx = &adapter->recv_ctx; - - disable_irq(adapter->irq); - for (ring = 0; ring < adapter->max_sds_rings; ring++) { - sds_ring = &recv_ctx->sds_rings[ring]; - netxen_intr(adapter->irq, sds_ring); - } - enable_irq(adapter->irq); -} -#endif - -static int -nx_incr_dev_ref_cnt(struct netxen_adapter *adapter) -{ - int count; - if (netxen_api_lock(adapter)) - return -EIO; - - count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); - - NXWR32(adapter, NX_CRB_DEV_REF_COUNT, ++count); - - netxen_api_unlock(adapter); - return count; -} - -static int -nx_decr_dev_ref_cnt(struct netxen_adapter *adapter) -{ - int count; - if (netxen_api_lock(adapter)) - return -EIO; - - count = NXRD32(adapter, NX_CRB_DEV_REF_COUNT); - WARN_ON(count == 0); - - NXWR32(adapter, NX_CRB_DEV_REF_COUNT, --count); - - if (count == 0) - NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_COLD); - - netxen_api_unlock(adapter); - return count; -} - -static int -nx_dev_request_aer(struct netxen_adapter *adapter) -{ - u32 state; - int ret = -EINVAL; - - if (netxen_api_lock(adapter)) - return ret; - - state = NXRD32(adapter, NX_CRB_DEV_STATE); - - if (state == NX_DEV_NEED_AER) - ret = 0; - else if (state == NX_DEV_READY) { - NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER); - ret = 0; - } - - netxen_api_unlock(adapter); - return ret; -} - -static int -nx_dev_request_reset(struct netxen_adapter *adapter) -{ - u32 state; - int ret = -EINVAL; - - if (netxen_api_lock(adapter)) - return ret; - - state = NXRD32(adapter, NX_CRB_DEV_STATE); - - if (state == NX_DEV_NEED_RESET) - ret = 0; - else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) { - NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET); - ret = 0; - } - - netxen_api_unlock(adapter); - - return ret; -} - -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_restore_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_NEED_RESET: - case NX_DEV_INITALIZING: - if (++adapter->fw_wait_cnt < FW_POLL_THRESH) { - netxen_schedule_work(adapter, - netxen_fwinit_work, 2 * FW_POLL_DELAY); - return; - } - - case NX_DEV_FAILED: - default: - nx_incr_dev_ref_cnt(adapter); - break; - } - - 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); - - netxen_nic_down(adapter, netdev); - - rtnl_lock(); - netxen_nic_detach(adapter); - rtnl_unlock(); - - status = NXRD32(adapter, NETXEN_PEG_HALT_STATUS1); - - if (status & NX_RCODE_FATAL_ERROR) - goto err_ret; - - if (adapter->temp == NX_TEMP_PANIC) - goto err_ret; - - ref_cnt = nx_decr_dev_ref_cnt(adapter); - - if (ref_cnt == -EIO) - goto err_ret; - - delay = (ref_cnt == 0) ? 0 : (2 * FW_POLL_DELAY); - - adapter->fw_wait_cnt = 0; - netxen_schedule_work(adapter, netxen_fwinit_work, delay); - - return; - -err_ret: - clear_bit(__NX_RESETTING, &adapter->state); -} - -static int -netxen_check_health(struct netxen_adapter *adapter) -{ - u32 state, heartbit; - struct net_device *netdev = adapter->netdev; - - state = NXRD32(adapter, NX_CRB_DEV_STATE); - if (state == NX_DEV_NEED_AER) - return 0; - - if (netxen_nic_check_temp(adapter)) - goto detach; - - if (adapter->need_fw_reset) { - if (nx_dev_request_reset(adapter)) - return 0; - goto detach; - } - - /* NX_DEV_NEED_RESET, this state can be marked in two cases - * 1. Tx timeout 2. Fw hang - * Send request to destroy context in case of tx timeout only - * and doesn't required in case of Fw hang - */ - if (state == NX_DEV_NEED_RESET) { - adapter->need_fw_reset = 1; - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) - 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; - if (adapter->need_fw_reset) - goto detach; - return 0; - } - - if (++adapter->fw_fail_cnt < FW_FAIL_THRESH) - return 0; - - if (nx_dev_request_reset(adapter)) - return 0; - - clear_bit(__NX_FW_ATTACHED, &adapter->state); - - dev_info(&netdev->dev, "firmware hang detected\n"); - -detach: - if ((auto_fw_reset == AUTO_FW_RESET_ENABLED) && - !test_and_set_bit(__NX_RESETTING, &adapter->state)) - netxen_schedule_work(adapter, netxen_detach_work, 0); - return 1; -} - -static void -netxen_fw_poll_work(struct work_struct *work) -{ - struct netxen_adapter *adapter = container_of(work, - struct netxen_adapter, fw_work.work); - - if (test_bit(__NX_RESETTING, &adapter->state)) - goto reschedule; - - if (test_bit(__NX_DEV_UP, &adapter->state)) { - if (!adapter->has_link_events) { - - netxen_nic_handle_phy_intr(adapter); - - if (adapter->link_changed) - netxen_nic_set_link_parameters(adapter); - } - } - - if (netxen_check_health(adapter)) - return; - -reschedule: - netxen_schedule_work(adapter, netxen_fw_poll_work, FW_POLL_DELAY); -} - -static ssize_t -netxen_store_bridged_mode(struct device *dev, - struct device_attribute *attr, const char *buf, size_t len) -{ - struct net_device *net = to_net_dev(dev); - struct netxen_adapter *adapter = netdev_priv(net); - unsigned long new; - int ret = -EINVAL; - - if (!(adapter->capabilities & NX_FW_CAPABILITY_BDG)) - goto err_out; - - if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) - goto err_out; - - if (strict_strtoul(buf, 2, &new)) - goto err_out; - - if (!netxen_config_bridged_mode(adapter, !!new)) - ret = len; - -err_out: - return ret; -} - -static ssize_t -netxen_show_bridged_mode(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct net_device *net = to_net_dev(dev); - struct netxen_adapter *adapter; - int bridged_mode = 0; - - adapter = netdev_priv(net); - - if (adapter->capabilities & NX_FW_CAPABILITY_BDG) - bridged_mode = !!(adapter->flags & NETXEN_NIC_BRIDGE_ENABLED); - - return sprintf(buf, "%d\n", bridged_mode); -} - -static struct device_attribute dev_attr_bridged_mode = { - .attr = {.name = "bridged_mode", .mode = (S_IRUGO | S_IWUSR)}, - .show = netxen_show_bridged_mode, - .store = netxen_store_bridged_mode, -}; - -static ssize_t -netxen_store_diag_mode(struct device *dev, - struct device_attribute *attr, const char *buf, size_t len) -{ - struct netxen_adapter *adapter = dev_get_drvdata(dev); - unsigned long new; - - if (strict_strtoul(buf, 2, &new)) - return -EINVAL; - - if (!!new != !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) - adapter->flags ^= NETXEN_NIC_DIAG_ENABLED; - - return len; -} - -static ssize_t -netxen_show_diag_mode(struct device *dev, - struct device_attribute *attr, char *buf) -{ - struct netxen_adapter *adapter = dev_get_drvdata(dev); - - return sprintf(buf, "%d\n", - !!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)); -} - -static struct device_attribute dev_attr_diag_mode = { - .attr = {.name = "diag_mode", .mode = (S_IRUGO | S_IWUSR)}, - .show = netxen_show_diag_mode, - .store = netxen_store_diag_mode, -}; - -static int -netxen_sysfs_validate_crb(struct netxen_adapter *adapter, - loff_t offset, size_t size) -{ - size_t crb_size = 4; - - if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) - return -EIO; - - if (offset < NETXEN_PCI_CRBSPACE) { - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) - return -EINVAL; - - if (ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, - NETXEN_PCI_CAMQM_2M_END)) - crb_size = 8; - else - return -EINVAL; - } - - if ((size != crb_size) || (offset & (crb_size-1))) - return -EINVAL; - - return 0; -} - -static ssize_t -netxen_sysfs_read_crb(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, - char *buf, loff_t offset, size_t size) -{ - struct device *dev = container_of(kobj, struct device, kobj); - struct netxen_adapter *adapter = dev_get_drvdata(dev); - u32 data; - u64 qmdata; - int ret; - - ret = netxen_sysfs_validate_crb(adapter, offset, size); - if (ret != 0) - return ret; - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && - ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, - NETXEN_PCI_CAMQM_2M_END)) { - netxen_pci_camqm_read_2M(adapter, offset, &qmdata); - memcpy(buf, &qmdata, size); - } else { - data = NXRD32(adapter, offset); - memcpy(buf, &data, size); - } - - return size; -} - -static ssize_t -netxen_sysfs_write_crb(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, - char *buf, loff_t offset, size_t size) -{ - struct device *dev = container_of(kobj, struct device, kobj); - struct netxen_adapter *adapter = dev_get_drvdata(dev); - u32 data; - u64 qmdata; - int ret; - - ret = netxen_sysfs_validate_crb(adapter, offset, size); - if (ret != 0) - return ret; - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id) && - ADDR_IN_RANGE(offset, NETXEN_PCI_CAMQM, - NETXEN_PCI_CAMQM_2M_END)) { - memcpy(&qmdata, buf, size); - netxen_pci_camqm_write_2M(adapter, offset, qmdata); - } else { - memcpy(&data, buf, size); - NXWR32(adapter, offset, data); - } - - return size; -} - -static int -netxen_sysfs_validate_mem(struct netxen_adapter *adapter, - loff_t offset, size_t size) -{ - if (!(adapter->flags & NETXEN_NIC_DIAG_ENABLED)) - return -EIO; - - if ((size != 8) || (offset & 0x7)) - return -EIO; - - return 0; -} - -static ssize_t -netxen_sysfs_read_mem(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, - char *buf, loff_t offset, size_t size) -{ - struct device *dev = container_of(kobj, struct device, kobj); - struct netxen_adapter *adapter = dev_get_drvdata(dev); - u64 data; - int ret; - - ret = netxen_sysfs_validate_mem(adapter, offset, size); - if (ret != 0) - return ret; - - if (adapter->pci_mem_read(adapter, offset, &data)) - return -EIO; - - memcpy(buf, &data, size); - - return size; -} - -static ssize_t netxen_sysfs_write_mem(struct file *filp, struct kobject *kobj, - struct bin_attribute *attr, char *buf, - loff_t offset, size_t size) -{ - struct device *dev = container_of(kobj, struct device, kobj); - struct netxen_adapter *adapter = dev_get_drvdata(dev); - u64 data; - int ret; - - ret = netxen_sysfs_validate_mem(adapter, offset, size); - if (ret != 0) - return ret; - - memcpy(&data, buf, size); - - if (adapter->pci_mem_write(adapter, offset, data)) - return -EIO; - - return size; -} - - -static struct bin_attribute bin_attr_crb = { - .attr = {.name = "crb", .mode = (S_IRUGO | S_IWUSR)}, - .size = 0, - .read = netxen_sysfs_read_crb, - .write = netxen_sysfs_write_crb, -}; - -static struct bin_attribute bin_attr_mem = { - .attr = {.name = "mem", .mode = (S_IRUGO | S_IWUSR)}, - .size = 0, - .read = netxen_sysfs_read_mem, - .write = netxen_sysfs_write_mem, -}; - - -static void -netxen_create_sysfs_entries(struct netxen_adapter *adapter) -{ - struct net_device *netdev = adapter->netdev; - struct device *dev = &netdev->dev; - - if (adapter->capabilities & NX_FW_CAPABILITY_BDG) { - /* bridged_mode control */ - if (device_create_file(dev, &dev_attr_bridged_mode)) { - dev_warn(&netdev->dev, - "failed to create bridged_mode sysfs entry\n"); - } - } -} - -static void -netxen_remove_sysfs_entries(struct netxen_adapter *adapter) -{ - struct net_device *netdev = adapter->netdev; - struct device *dev = &netdev->dev; - - if (adapter->capabilities & NX_FW_CAPABILITY_BDG) - device_remove_file(dev, &dev_attr_bridged_mode); -} - -static void -netxen_create_diag_entries(struct netxen_adapter *adapter) -{ - struct pci_dev *pdev = adapter->pdev; - struct device *dev; - - dev = &pdev->dev; - if (device_create_file(dev, &dev_attr_diag_mode)) - dev_info(dev, "failed to create diag_mode sysfs entry\n"); - if (device_create_bin_file(dev, &bin_attr_crb)) - dev_info(dev, "failed to create crb sysfs entry\n"); - if (device_create_bin_file(dev, &bin_attr_mem)) - dev_info(dev, "failed to create mem sysfs entry\n"); -} - - -static void -netxen_remove_diag_entries(struct netxen_adapter *adapter) -{ - struct pci_dev *pdev = adapter->pdev; - struct device *dev = &pdev->dev; - - device_remove_file(dev, &dev_attr_diag_mode); - device_remove_bin_file(dev, &bin_attr_crb); - device_remove_bin_file(dev, &bin_attr_mem); -} - -#ifdef CONFIG_INET - -#define is_netxen_netdev(dev) (dev->netdev_ops == &netxen_netdev_ops) - -static int -netxen_destip_supported(struct netxen_adapter *adapter) -{ - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) - return 0; - - if (adapter->ahw.cut_through) - return 0; - - return 1; -} - -static void -netxen_free_vlan_ip_list(struct netxen_adapter *adapter) -{ - struct nx_vlan_ip_list *cur; - struct list_head *head = &adapter->vlan_ip_list; - - while (!list_empty(head)) { - cur = list_entry(head->next, struct nx_vlan_ip_list, list); - netxen_config_ipaddr(adapter, cur->ip_addr, NX_IP_DOWN); - list_del(&cur->list); - kfree(cur); - } - -} -static void -netxen_list_config_vlan_ip(struct netxen_adapter *adapter, - struct in_ifaddr *ifa, unsigned long event) -{ - struct net_device *dev; - struct nx_vlan_ip_list *cur, *tmp_cur; - struct list_head *head; - - dev = ifa->ifa_dev ? ifa->ifa_dev->dev : NULL; - - if (dev == NULL) - return; - - if (!is_vlan_dev(dev)) - return; - - switch (event) { - case NX_IP_UP: - list_for_each(head, &adapter->vlan_ip_list) { - cur = list_entry(head, struct nx_vlan_ip_list, list); - - if (cur->ip_addr == ifa->ifa_address) - return; - } - - cur = kzalloc(sizeof(struct nx_vlan_ip_list), GFP_ATOMIC); - if (cur == NULL) { - printk(KERN_ERR "%s: failed to add vlan ip to list\n", - adapter->netdev->name); - return; - } - - cur->ip_addr = ifa->ifa_address; - list_add_tail(&cur->list, &adapter->vlan_ip_list); - break; - case NX_IP_DOWN: - list_for_each_entry_safe(cur, tmp_cur, - &adapter->vlan_ip_list, list) { - if (cur->ip_addr == ifa->ifa_address) { - list_del(&cur->list); - kfree(cur); - break; - } - } - } -} -static void -netxen_config_indev_addr(struct netxen_adapter *adapter, - struct net_device *dev, unsigned long event) -{ - struct in_device *indev; - - 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); - netxen_list_config_vlan_ip(adapter, ifa, NX_IP_UP); - break; - case NETDEV_DOWN: - netxen_config_ipaddr(adapter, - ifa->ifa_address, NX_IP_DOWN); - netxen_list_config_vlan_ip(adapter, ifa, NX_IP_DOWN); - break; - default: - break; - } - } endfor_ifa(indev); - - in_dev_put(indev); -} - -static void -netxen_restore_indev_addr(struct net_device *netdev, unsigned long event) - -{ - struct netxen_adapter *adapter = netdev_priv(netdev); - struct nx_vlan_ip_list *pos, *tmp_pos; - unsigned long ip_event; - - ip_event = (event == NETDEV_UP) ? NX_IP_UP : NX_IP_DOWN; - netxen_config_indev_addr(adapter, netdev, event); - - list_for_each_entry_safe(pos, tmp_pos, &adapter->vlan_ip_list, list) { - netxen_config_ipaddr(adapter, pos->ip_addr, ip_event); - } -} - -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; - struct net_device *orig_dev = dev; - -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(adapter, orig_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) - 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); - netxen_list_config_vlan_ip(adapter, ifa, NX_IP_UP); - break; - case NETDEV_DOWN: - netxen_config_ipaddr(adapter, ifa->ifa_address, NX_IP_DOWN); - netxen_list_config_vlan_ip(adapter, ifa, 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_restore_indev_addr(struct net_device *dev, unsigned long event) -{ } -static void -netxen_free_vlan_ip_list(struct netxen_adapter *adapter) -{ } -#endif - -static struct pci_error_handlers netxen_err_handler = { - .error_detected = netxen_io_error_detected, - .slot_reset = netxen_io_slot_reset, - .resume = netxen_io_resume, -}; - -static struct pci_driver netxen_driver = { - .name = netxen_nic_driver_name, - .id_table = netxen_pci_tbl, - .probe = netxen_nic_probe, - .remove = __devexit_p(netxen_nic_remove), -#ifdef CONFIG_PM - .suspend = netxen_nic_suspend, - .resume = netxen_nic_resume, -#endif - .shutdown = netxen_nic_shutdown, - .err_handler = &netxen_err_handler -}; - -static int __init netxen_init_module(void) -{ - printk(KERN_INFO "%s\n", netxen_nic_driver_string); - -#ifdef CONFIG_INET - register_netdevice_notifier(&netxen_netdev_cb); - register_inetaddr_notifier(&netxen_inetaddr_cb); -#endif - return pci_register_driver(&netxen_driver); -} - -module_init(netxen_init_module); - -static void __exit netxen_exit_module(void) -{ - pci_unregister_driver(&netxen_driver); - -#ifdef CONFIG_INET - unregister_inetaddr_notifier(&netxen_inetaddr_cb); - unregister_netdevice_notifier(&netxen_netdev_cb); -#endif -} - -module_exit(netxen_exit_module); |