diff options
Diffstat (limited to 'drivers/net/netxen/netxen_nic_main.c')
| -rw-r--r-- | drivers/net/netxen/netxen_nic_main.c | 1640 |
1 files changed, 0 insertions, 1640 deletions
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c deleted file mode 100644 index 13087782ac4..00000000000 --- a/drivers/net/netxen/netxen_nic_main.c +++ /dev/null @@ -1,1640 +0,0 @@ -/* - * Copyright (C) 2003 - 2006 NetXen, Inc. - * All rights reserved. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, - * MA 02111-1307, USA. - * - * The full GNU General Public License is included in this distribution - * in the file called LICENSE. - * - * Contact Information: - * info@netxen.com - * NetXen, - * 3965 Freedom Circle, Fourth floor, - * Santa Clara, CA 95054 - * - * - * Main source file for NetXen NIC Driver on Linux - * - */ - -#include <linux/vmalloc.h> -#include <linux/highmem.h> -#include "netxen_nic_hw.h" - -#include "netxen_nic.h" -#include "netxen_nic_phan_reg.h" - -#include <linux/dma-mapping.h> -#include <linux/if_vlan.h> -#include <net/ip.h> -#include <linux/ipv6.h> - -MODULE_DESCRIPTION("NetXen Multi port (1/10) Gigabit Network Driver"); -MODULE_LICENSE("GPL"); -MODULE_VERSION(NETXEN_NIC_LINUX_VERSIONID); - -char netxen_nic_driver_name[] = "netxen_nic"; -static char netxen_nic_driver_string[] = "NetXen Network Driver version " - NETXEN_NIC_LINUX_VERSIONID; - -static int port_mode = NETXEN_PORT_MODE_AUTO_NEG; - -/* Default to restricted 1G auto-neg mode */ -static int wol_port_mode = 5; - -static int use_msi = 1; - -static int use_msi_x = 1; - -/* Local functions to NetXen NIC driver */ -static int __devinit netxen_nic_probe(struct pci_dev *pdev, - const struct pci_device_id *ent); -static void __devexit netxen_nic_remove(struct pci_dev *pdev); -static int netxen_nic_open(struct net_device *netdev); -static int netxen_nic_close(struct net_device *netdev); -static int netxen_nic_xmit_frame(struct sk_buff *, struct net_device *); -static void netxen_tx_timeout(struct net_device *netdev); -static void netxen_tx_timeout_task(struct work_struct *work); -static void netxen_watchdog(unsigned long); -static 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 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); - -/* PCI Device ID Table */ -#define ENTRY(device) \ - {PCI_DEVICE(PCI_VENDOR_ID_NETXEN, (device)), \ - .class = PCI_CLASS_NETWORK_ETHERNET << 8, .class_mask = ~0} - -static struct pci_device_id netxen_pci_tbl[] __devinitdata = { - ENTRY(PCI_DEVICE_ID_NX2031_10GXSR), - ENTRY(PCI_DEVICE_ID_NX2031_10GCX4), - ENTRY(PCI_DEVICE_ID_NX2031_4GCU), - ENTRY(PCI_DEVICE_ID_NX2031_IMEZ), - ENTRY(PCI_DEVICE_ID_NX2031_HMEZ), - ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT), - ENTRY(PCI_DEVICE_ID_NX2031_XG_MGMT2), - ENTRY(PCI_DEVICE_ID_NX3031), - {0,} -}; - -MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); - -/* - * In netxen_nic_down(), we must wait for any pending callback requests into - * netxen_watchdog_task() to complete; eg otherwise the watchdog_timer could be - * reenabled right after it is deleted in netxen_nic_down(). - * FLUSH_SCHEDULED_WORK() does this synchronization. - * - * Normally, schedule_work()/flush_scheduled_work() could have worked, but - * netxen_nic_close() is invoked with kernel rtnl lock held. netif_carrier_off() - * call in netxen_nic_close() triggers a schedule_work(&linkwatch_work), and a - * subsequent call to flush_scheduled_work() in netxen_nic_down() would cause - * linkwatch_event() to be executed which also attempts to acquire the rtnl - * lock thus causing a deadlock. - */ - -static struct workqueue_struct *netxen_workq; -#define SCHEDULE_WORK(tp) queue_work(netxen_workq, tp) -#define FLUSH_SCHEDULED_WORK() flush_workqueue(netxen_workq) - -static void netxen_watchdog(unsigned long); - -static uint32_t crb_cmd_producer[4] = { - CRB_CMD_PRODUCER_OFFSET, CRB_CMD_PRODUCER_OFFSET_1, - CRB_CMD_PRODUCER_OFFSET_2, CRB_CMD_PRODUCER_OFFSET_3 -}; - -void -netxen_nic_update_cmd_producer(struct netxen_adapter *adapter, - uint32_t crb_producer) -{ - adapter->pci_write_normalize(adapter, - adapter->crb_addr_cmd_producer, crb_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, - u32 crb_consumer) -{ - adapter->pci_write_normalize(adapter, - adapter->crb_addr_cmd_consumer, crb_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 netxen_adapter *adapter) -{ - adapter->pci_write_normalize(adapter, adapter->crb_intr_mask, 0); -} - -static inline void netxen_nic_enable_int(struct netxen_adapter *adapter) -{ - adapter->pci_write_normalize(adapter, adapter->crb_intr_mask, 0x1); - - if (!NETXEN_IS_MSI_FAMILY(adapter)) - adapter->pci_write_immediate(adapter, - adapter->legacy_intr.tgt_mask_reg, 0xfbff); -} - -static int nx_set_dma_mask(struct netxen_adapter *adapter, uint8_t revision_id) -{ - struct pci_dev *pdev = adapter->pdev; - int err; - uint64_t mask; - -#ifdef CONFIG_IA64 - adapter->dma_mask = DMA_32BIT_MASK; -#else - if (revision_id >= NX_P3_B0) { - /* should go to DMA_64BIT_MASK */ - adapter->dma_mask = DMA_39BIT_MASK; - mask = DMA_39BIT_MASK; - } else if (revision_id == NX_P3_A2) { - adapter->dma_mask = DMA_39BIT_MASK; - mask = DMA_39BIT_MASK; - } else if (revision_id == NX_P2_C1) { - adapter->dma_mask = DMA_35BIT_MASK; - mask = DMA_35BIT_MASK; - } else { - adapter->dma_mask = DMA_32BIT_MASK; - mask = DMA_32BIT_MASK; - goto set_32_bit_mask; - } - - /* - * Consistent DMA mask is set to 32 bit because it cannot be set to - * 35 bits. For P3 also leave it at 32 bits for now. Only the rings - * come off this pool. - */ - if (pci_set_dma_mask(pdev, mask) == 0 && - pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK) == 0) { - adapter->pci_using_dac = 1; - return 0; - } -set_32_bit_mask: -#endif /* CONFIG_IA64 */ - - err = pci_set_dma_mask(pdev, DMA_32BIT_MASK); - if (!err) - err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); - if (err) { - DPRINTK(ERR, "No usable DMA configuration, aborting:%d\n", err); - return err; - } - - adapter->pci_using_dac = 0; - return 0; -} - -static void netxen_check_options(struct netxen_adapter *adapter) -{ - switch (adapter->ahw.boardcfg.board_type) { - case NETXEN_BRDTYPE_P3_HMEZ: - case NETXEN_BRDTYPE_P3_XG_LOM: - case NETXEN_BRDTYPE_P3_10G_CX4: - case NETXEN_BRDTYPE_P3_10G_CX4_LP: - case NETXEN_BRDTYPE_P3_IMEZ: - case NETXEN_BRDTYPE_P3_10G_SFP_PLUS: - case NETXEN_BRDTYPE_P3_10G_SFP_QT: - case NETXEN_BRDTYPE_P3_10G_SFP_CT: - case NETXEN_BRDTYPE_P3_10G_XFP: - case NETXEN_BRDTYPE_P3_10000_BASE_T: - adapter->msix_supported = !!use_msi_x; - adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G; - break; - - case NETXEN_BRDTYPE_P2_SB31_10G: - case NETXEN_BRDTYPE_P2_SB31_10G_CX4: - case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: - case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: - adapter->msix_supported = 0; - adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G; - break; - - case NETXEN_BRDTYPE_P3_REF_QG: - case NETXEN_BRDTYPE_P3_4_GB: - case NETXEN_BRDTYPE_P3_4_GB_MM: - adapter->msix_supported = !!use_msi_x; - adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G; - break; - - case NETXEN_BRDTYPE_P2_SB35_4G: - case NETXEN_BRDTYPE_P2_SB31_2G: - adapter->msix_supported = 0; - adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G; - break; - - case NETXEN_BRDTYPE_P3_10G_TP: - adapter->msix_supported = !!use_msi_x; - if (adapter->ahw.board_type == NETXEN_NIC_XGBE) - adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_10G; - else - adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G; - break; - - default: - adapter->msix_supported = 0; - adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G; - - printk(KERN_WARNING "Unknown board type(0x%x)\n", - adapter->ahw.boardcfg.board_type); - break; - } - - adapter->max_tx_desc_count = MAX_CMD_DESCRIPTORS_HOST; - adapter->max_jumbo_rx_desc_count = MAX_JUMBO_RCV_DESCRIPTORS; - adapter->max_lro_rx_desc_count = MAX_LRO_RCV_DESCRIPTORS; - - adapter->max_possible_rss_rings = 1; - return; -} - -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 */ - adapter->pci_write_normalize(adapter, - NETXEN_CAM_RAM(0x1fc), NETXEN_BDINFO_MAGIC); - - if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) - return 0; - - /* PCI bus master workaround */ - adapter->hw_read_wx(adapter, - NETXEN_PCIE_REG(0x4), &first_boot, 4); - if (!(first_boot & 0x4)) { - first_boot |= 0x4; - adapter->hw_write_wx(adapter, - NETXEN_PCIE_REG(0x4), &first_boot, 4); - adapter->hw_read_wx(adapter, - NETXEN_PCIE_REG(0x4), &first_boot, 4); - } - - /* This is the first boot after power up */ - adapter->hw_read_wx(adapter, - NETXEN_ROMUSB_GLB_SW_RESET, &first_boot, 4); - if (first_boot != 0x80000f) { - /* clear the register for future unloads/loads */ - adapter->pci_write_normalize(adapter, - NETXEN_CAM_RAM(0x1fc), 0); - return -EIO; - } - - /* Start P2 boot loader */ - val = adapter->pci_read_normalize(adapter, - NETXEN_ROMUSB_GLB_PEGTUNE_DONE); - adapter->pci_write_normalize(adapter, - NETXEN_ROMUSB_GLB_PEGTUNE_DONE, val | 0x1); - timeout = 0; - do { - msleep(1); - val = adapter->pci_read_normalize(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.boardcfg.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; - adapter->hw_write_wx(adapter, - NETXEN_PORT_MODE_ADDR, &data, 4); - } else if (port_mode == NETXEN_PORT_MODE_XG) { - data = NETXEN_PORT_MODE_XG; - adapter->hw_write_wx(adapter, - NETXEN_PORT_MODE_ADDR, &data, 4); - } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_1G) { - data = NETXEN_PORT_MODE_AUTO_NEG_1G; - adapter->hw_write_wx(adapter, - NETXEN_PORT_MODE_ADDR, &data, 4); - } else if (port_mode == NETXEN_PORT_MODE_AUTO_NEG_XG) { - data = NETXEN_PORT_MODE_AUTO_NEG_XG; - adapter->hw_write_wx(adapter, - NETXEN_PORT_MODE_ADDR, &data, 4); - } else { - data = NETXEN_PORT_MODE_AUTO_NEG; - adapter->hw_write_wx(adapter, - NETXEN_PORT_MODE_ADDR, &data, 4); - } - - 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; - } - adapter->hw_write_wx(adapter, NETXEN_WOL_PORT_MODE, - &wol_port_mode, 4); - } -} - -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 i; - - for (i = 0; i < MSIX_ENTRIES_PER_ADAPTER; i++) - adapter->msix_entries[i].entry = i; -} - -static int -netxen_read_mac_addr(struct netxen_adapter *adapter) -{ - int i; - unsigned char *p; - __le64 mac_addr; - struct net_device *netdev = adapter->netdev; - struct pci_dev *pdev = adapter->pdev; - - if (netxen_is_flash_supported(adapter) != 0) - return -EIO; - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { - if (netxen_p3_get_mac_addr(adapter, &mac_addr) != 0) - return -EIO; - } else { - if (netxen_get_flash_mac_addr(adapter, &mac_addr) != 0) - return -EIO; - } - - p = (unsigned char *)&mac_addr; - for (i = 0; i < 6; i++) - netdev->dev_addr[i] = *(p + 5 - i); - - memcpy(netdev->perm_addr, netdev->dev_addr, netdev->addr_len); - - /* set station address */ - - if (!is_valid_ether_addr(netdev->perm_addr)) - dev_warn(&pdev->dev, "Bad MAC address %pM.\n", netdev->dev_addr); - else - adapter->macaddr_set(adapter, netdev->dev_addr); - - return 0; -} - -static void netxen_set_multicast_list(struct net_device *dev) -{ - struct netxen_adapter *adapter = netdev_priv(dev); - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) - netxen_p3_nic_set_multi(dev); - else - netxen_p2_nic_set_multi(dev); -} - -static const struct net_device_ops netxen_netdev_ops = { - .ndo_open = netxen_nic_open, - .ndo_stop = netxen_nic_close, - .ndo_start_xmit = netxen_nic_xmit_frame, - .ndo_get_stats = netxen_nic_get_stats, - .ndo_validate_addr = eth_validate_addr, - .ndo_set_multicast_list = netxen_set_multicast_list, - .ndo_set_mac_address = netxen_nic_set_mac, - .ndo_change_mtu = netxen_nic_change_mtu, - .ndo_tx_timeout = netxen_tx_timeout, -#ifdef CONFIG_NET_POLL_CONTROLLER - .ndo_poll_controller = netxen_nic_poll_controller, -#endif -}; - -/* - * netxen_nic_probe() - * - * The Linux system will invoke this after identifying the vendor ID and - * device Id in the pci_tbl supported by this module. - * - * A quad port card has one operational PCI config space, (function 0), - * which is used to access all four ports. - * - * This routine will initialize the adapter, and setup the global parameters - * along with the port's specific structure. - */ -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; - void __iomem *mem_ptr0 = NULL; - void __iomem *mem_ptr1 = NULL; - void __iomem *mem_ptr2 = NULL; - unsigned long first_page_group_end; - unsigned long first_page_group_start; - - - u8 __iomem *db_ptr = NULL; - unsigned long mem_base, mem_len, db_base, db_len, pci_len0 = 0; - int i = 0, err; - int first_driver, first_boot; - u32 val; - int pci_func_id = PCI_FUNC(pdev->devfn); - struct netxen_legacy_intr_set *legacy_intrp; - uint8_t revision_id; - - if (pci_func_id == 0) - printk(KERN_INFO "%s\n", netxen_nic_driver_string); - - if (pdev->class != 0x020000) { - printk(KERN_DEBUG "NetXen function %d, class %x will not " - "be enabled.\n",pci_func_id, pdev->class); - return -ENODEV; - } - - if (pdev->revision >= NX_P3_A0 && pdev->revision < NX_P3_B1) { - printk(KERN_WARNING "NetXen chip revisions between 0x%x-0x%x" - "will not be enabled.\n", - NX_P3_A0, NX_P3_B1); - return -ENODEV; - } - - if ((err = pci_enable_device(pdev))) - return err; - - if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) { - err = -ENODEV; - goto err_out_disable_pdev; - } - - if ((err = pci_request_regions(pdev, netxen_nic_driver_name))) - goto err_out_disable_pdev; - - pci_set_master(pdev); - - netdev = alloc_etherdev(sizeof(struct netxen_adapter)); - if(!netdev) { - printk(KERN_ERR"%s: Failed to allocate memory for the " - "device block.Check system memory resource" - " usage.\n", netxen_nic_driver_name); - 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; - - err = nx_set_dma_mask(adapter, revision_id); - if (err) - goto err_out_free_netdev; - - rwlock_init(&adapter->adapter_lock); - adapter->ahw.qdr_sn_window = -1; - adapter->ahw.ddr_mn_window = -1; - - /* remap phys address */ - mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ - mem_len = pci_resource_len(pdev, 0); - pci_len0 = 0; - - adapter->hw_write_wx = netxen_nic_hw_write_wx_128M; - adapter->hw_read_wx = netxen_nic_hw_read_wx_128M; - adapter->pci_read_immediate = netxen_nic_pci_read_immediate_128M; - adapter->pci_write_immediate = netxen_nic_pci_write_immediate_128M; - adapter->pci_read_normalize = netxen_nic_pci_read_normalize_128M; - adapter->pci_write_normalize = netxen_nic_pci_write_normalize_128M; - adapter->pci_set_window = netxen_nic_pci_set_window_128M; - adapter->pci_mem_read = netxen_nic_pci_mem_read_128M; - adapter->pci_mem_write = netxen_nic_pci_mem_write_128M; - - /* 128 Meg of memory */ - if (mem_len == NETXEN_PCI_128MB_SIZE) { - mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); - mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, - SECOND_PAGE_GROUP_SIZE); - mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, - THIRD_PAGE_GROUP_SIZE); - first_page_group_start = FIRST_PAGE_GROUP_START; - first_page_group_end = FIRST_PAGE_GROUP_END; - } else if (mem_len == NETXEN_PCI_32MB_SIZE) { - mem_ptr1 = ioremap(mem_base, SECOND_PAGE_GROUP_SIZE); - mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START - - SECOND_PAGE_GROUP_START, THIRD_PAGE_GROUP_SIZE); - first_page_group_start = 0; - first_page_group_end = 0; - } else if (mem_len == NETXEN_PCI_2MB_SIZE) { - adapter->hw_write_wx = netxen_nic_hw_write_wx_2M; - adapter->hw_read_wx = netxen_nic_hw_read_wx_2M; - adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M; - adapter->pci_write_immediate = - netxen_nic_pci_write_immediate_2M; - adapter->pci_read_normalize = netxen_nic_pci_read_normalize_2M; - adapter->pci_write_normalize = - netxen_nic_pci_write_normalize_2M; - adapter->pci_set_window = netxen_nic_pci_set_window_2M; - adapter->pci_mem_read = netxen_nic_pci_mem_read_2M; - adapter->pci_mem_write = netxen_nic_pci_mem_write_2M; - - mem_ptr0 = pci_ioremap_bar(pdev, 0); - if (mem_ptr0 == NULL) { - dev_err(&pdev->dev, "failed to map PCI bar 0\n"); - return -EIO; - } - - pci_len0 = mem_len; - first_page_group_start = 0; - first_page_group_end = 0; - - adapter->ahw.ddr_mn_window = 0; - adapter->ahw.qdr_sn_window = 0; - - adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW + - (pci_func_id * 0x20); - adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW; - if (pci_func_id < 4) - adapter->ahw.ms_win_crb += (pci_func_id * 0x20); - else - adapter->ahw.ms_win_crb += - 0xA0 + ((pci_func_id - 4) * 0x10); - } else { - err = -EIO; - goto err_out_free_netdev; - } - - dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); - - 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_iounmap; - } - DPRINTK(INFO, "doorbell ioremap from %lx a size of %lx\n", db_base, - db_len); - - 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_iounmap; - } - DPRINTK(INFO, "doorbell ioremaped at %p\n", db_ptr); - - adapter->ahw.pci_base0 = mem_ptr0; - adapter->ahw.pci_len0 = pci_len0; - adapter->ahw.first_page_group_start = first_page_group_start; - adapter->ahw.first_page_group_end = first_page_group_end; - adapter->ahw.pci_base1 = mem_ptr1; - adapter->ahw.pci_base2 = mem_ptr2; - adapter->ahw.db_base = db_ptr; - adapter->ahw.db_len = db_len; - - netif_napi_add(netdev, &adapter->napi, - netxen_nic_poll, NETXEN_NETDEV_WEIGHT); - - if (revision_id >= NX_P3_B0) - legacy_intrp = &legacy_intr[pci_func_id]; - else - legacy_intrp = &legacy_intr[0]; - - adapter->legacy_intr.int_vec_bit = legacy_intrp->int_vec_bit; - adapter->legacy_intr.tgt_status_reg = legacy_intrp->tgt_status_reg; - adapter->legacy_intr.tgt_mask_reg = legacy_intrp->tgt_mask_reg; - adapter->legacy_intr.pci_int_reg = legacy_intrp->pci_int_reg; - - /* this will be read from FW later */ - adapter->intr_scheme = -1; - adapter->msi_mode = -1; - - /* This will be reset for mezz cards */ - adapter->portnum = pci_func_id; - adapter->status &= ~NETXEN_NETDEV_STATUS; - adapter->rx_csum = 1; - adapter->mc_enabled = 0; - if (NX_IS_REVISION_P3(revision_id)) - adapter->max_mc_count = 38; - else - adapter->max_mc_count = 16; - - netdev->netdev_ops = &netxen_netdev_ops; - netdev->watchdog_timeo = 2*HZ; - - netxen_nic_change_mtu(netdev, netdev->mtu); - - SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); - - netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO); - netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO); - - if (NX_IS_REVISION_P3(revision_id)) { - netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6); - netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6); - } - - if (adapter->pci_using_dac) { - netdev->features |= NETIF_F_HIGHDMA; - netdev->vlan_features |= NETIF_F_HIGHDMA; - } - - /* - * 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->curr_window = 255; - - if (netxen_nic_get_board_info(adapter) != 0) { - printk("%s: Error getting board config info.\n", - netxen_nic_driver_name); - err = -EIO; - goto err_out_iounmap; - } - - netxen_initialize_adapter_ops(adapter); - - /* Mezz cards have PCI function 0,2,3 enabled */ - switch (adapter->ahw.boardcfg.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; - } - - /* - * This call will setup various max rx/tx counts. - * It must be done before any buffer/ring allocations. - */ - netxen_check_options(adapter); - - first_driver = 0; - if (NX_IS_REVISION_P3(revision_id)) { - if (adapter->ahw.pci_func == 0) - first_driver = 1; - } else { - if (adapter->portnum == 0) - first_driver = 1; - } - - if (first_driver) { - first_boot = adapter->pci_read_normalize(adapter, - NETXEN_CAM_RAM(0x1fc)); - - err = netxen_check_hw_init(adapter, first_boot); - if (err) { - printk(KERN_ERR "%s: error in init HW init sequence\n", - netxen_nic_driver_name); - goto err_out_iounmap; - } - - if (NX_IS_REVISION_P3(revision_id)) - netxen_set_port_mode(adapter); - - if (first_boot != 0x55555555) { - adapter->pci_write_normalize(adapter, - CRB_CMDPEG_STATE, 0); - netxen_pinit_from_rom(adapter, 0); - msleep(1); - } - netxen_load_firmware(adapter); - - if (NX_IS_REVISION_P2(revision_id)) { - - /* Initialize multicast addr pool owners */ - val = 0x7654; - if (adapter->ahw.board_type == NETXEN_NIC_XGBE) - val |= 0x0f000000; - netxen_crb_writelit_adapter(adapter, - NETXEN_MAC_ADDR_CNTL_REG, val); - - } - - err = netxen_initialize_adapter_offload(adapter); - if (err) - goto err_out_iounmap; - - /* - * Tell the hardware our version number. - */ - i = (_NETXEN_NIC_LINUX_MAJOR << 16) - | ((_NETXEN_NIC_LINUX_MINOR << 8)) - | (_NETXEN_NIC_LINUX_SUBVERSION); - adapter->pci_write_normalize(adapter, CRB_DRIVER_VERSION, i); - - /* Handshake with the card before we register the devices. */ - err = netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); - if (err) - goto err_out_free_offload; - - } /* first_driver */ - - netxen_nic_flash_print(adapter); - - if (NX_IS_REVISION_P3(revision_id)) { - adapter->hw_read_wx(adapter, - NETXEN_MIU_MN_CONTROL, &val, 4); - adapter->ahw.cut_through = (val & 0x4) ? 1 : 0; - dev_info(&pdev->dev, "firmware running in %s mode\n", - adapter->ahw.cut_through ? "cut through" : "legacy"); - } - - /* - * See if the firmware gave us a virtual-physical port mapping. - */ - adapter->physical_port = adapter->portnum; - if (adapter->fw_major < 4) { - i = adapter->pci_read_normalize(adapter, - CRB_V2P(adapter->portnum)); - if (i != 0x55555555) - adapter->physical_port = i; - } - - adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED); - - netxen_set_msix_bit(pdev, 0); - - if (NX_IS_REVISION_P3(revision_id)) { - if ((mem_len != NETXEN_PCI_128MB_SIZE) && - mem_len != NETXEN_PCI_2MB_SIZE) - adapter->msix_supported = 0; - } - - if (adapter->msix_supported) { - - netxen_init_msix_entries(adapter); - - if (pci_enable_msix(pdev, adapter->msix_entries, - MSIX_ENTRIES_PER_ADAPTER)) - goto request_msi; - - adapter->flags |= NETXEN_NIC_MSIX_ENABLED; - netxen_set_msix_bit(pdev, 1); - dev_info(&pdev->dev, "using msi-x interrupts\n"); - - } else { -request_msi: - if (use_msi && !pci_enable_msi(pdev)) { - adapter->flags |= NETXEN_NIC_MSI_ENABLED; - dev_info(&pdev->dev, "using msi interrupts\n"); - } else - dev_info(&pdev->dev, "using legacy interrupts\n"); - } - - if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) - netdev->irq = adapter->msix_entries[0].vector; - else - netdev->irq = pdev->irq; - - err = netxen_receive_peg_ready(adapter); - if (err) - goto err_out_disable_msi; - - init_timer(&adapter->watchdog_timer); - adapter->watchdog_timer.function = &netxen_watchdog; - adapter->watchdog_timer.data = (unsigned long)adapter; - INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task); - INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); - - err = netxen_read_mac_addr(adapter); - if (err) - dev_warn(&pdev->dev, "failed to read mac addr\n"); - - netif_carrier_off(netdev); - netif_stop_queue(netdev); - - if ((err = register_netdev(netdev))) { - printk(KERN_ERR "%s: register_netdev failed port #%d" - " aborting\n", netxen_nic_driver_name, - adapter->portnum); - err = -EIO; - goto err_out_disable_msi; - } - - pci_set_drvdata(pdev, adapter); - - switch (adapter->ahw.board_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; - } - - return 0; - -err_out_disable_msi: - if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) - pci_disable_msix(pdev); - if (adapter->flags & NETXEN_NIC_MSI_ENABLED) - pci_disable_msi(pdev); - -err_out_free_offload: - if (first_driver) - netxen_free_adapter_offload(adapter); - -err_out_iounmap: - if (db_ptr) - iounmap(db_ptr); - - if (mem_ptr0) - iounmap(mem_ptr0); - if (mem_ptr1) - iounmap(mem_ptr1); - if (mem_ptr2) - iounmap(mem_ptr2); - -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; - - unregister_netdev(netdev); - - if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { - netxen_free_hw_resources(adapter); - netxen_release_rx_buffers(adapter); - netxen_free_sw_resources(adapter); - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) - netxen_p3_free_mac_list(adapter); - } - - if (adapter->portnum == 0) - netxen_free_adapter_offload(adapter); - - if (adapter->irq) - free_irq(adapter->irq, adapter); - - if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) - pci_disable_msix(pdev); - if (adapter->flags & NETXEN_NIC_MSI_ENABLED) - pci_disable_msi(pdev); - - iounmap(adapter->ahw.db_base); - 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); - - pci_release_regions(pdev); - pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); - - free_netdev(netdev); -} - -/* - * Called when a network interface is made active - * @returns 0 on success, negative value on failure - */ -static int netxen_nic_open(struct net_device *netdev) -{ - struct netxen_adapter *adapter = netdev_priv(netdev); - int err = 0; - int ctx, ring; - irq_handler_t handler; - unsigned long flags = IRQF_SAMPLE_RANDOM; - - if (adapter->driver_mismatch) - return -EIO; - - if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) { - err = netxen_init_firmware(adapter); - if (err != 0) { - printk(KERN_ERR "Failed to init firmware\n"); - return -EIO; - } - - if (adapter->fw_major < 4) - adapter->max_rds_rings = 3; - else - adapter->max_rds_rings = 2; - - err = netxen_alloc_sw_resources(adapter); - if (err) { - printk(KERN_ERR "%s: Error in setting sw resources\n", - netdev->name); - return err; - } - - netxen_nic_clear_stats(adapter); - - err = netxen_alloc_hw_resources(adapter); - if (err) { - printk(KERN_ERR "%s: Error in setting hw resources\n", - netdev->name); - goto err_out_free_sw; - } - - if ((adapter->msi_mode != MSI_MODE_MULTIFUNC) || - (adapter->intr_scheme != INTR_SCHEME_PERPORT)) { - printk(KERN_ERR "%s: Firmware interrupt scheme is " - "incompatible with driver\n", - netdev->name); - adapter->driver_mismatch = 1; - goto err_out_free_hw; - } - - if (adapter->fw_major < 4) { - adapter->crb_addr_cmd_producer = - crb_cmd_producer[adapter->portnum]; - adapter->crb_addr_cmd_consumer = - crb_cmd_consumer[adapter->portnum]; - - netxen_nic_update_cmd_producer(adapter, 0); - netxen_nic_update_cmd_consumer(adapter, 0); - } - - for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { - for (ring = 0; ring < adapter->max_rds_rings; ring++) - netxen_post_rx_buffers(adapter, ctx, ring); - } - 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; - err = request_irq(adapter->irq, handler, - flags, netdev->name, adapter); - if (err) { - printk(KERN_ERR "request_irq failed with: %d\n", err); - goto err_out_free_rxbuf; - } - - adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; - } - - /* Done here again so that even if phantom sw overwrote it, - * we set it */ - 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); - goto err_out_free_irq; - } - adapter->macaddr_set(adapter, netdev->dev_addr); - - netxen_nic_set_link_parameters(adapter); - - netxen_set_multicast_list(netdev); - if (adapter->set_mtu) - adapter->set_mtu(adapter, netdev->mtu); - - adapter->ahw.linkup = 0; - mod_timer(&adapter->watchdog_timer, jiffies); - - napi_enable(&adapter->napi); - netxen_nic_enable_int(adapter); - - netif_start_queue(netdev); - - return 0; - -err_out_free_irq: - free_irq(adapter->irq, adapter); -err_out_free_rxbuf: - netxen_release_rx_buffers(adapter); -err_out_free_hw: - netxen_free_hw_resources(adapter); -err_out_free_sw: - netxen_free_sw_resources(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); - - netif_carrier_off(netdev); - netif_stop_queue(netdev); - napi_disable(&adapter->napi); - - if (adapter->stop_port) - adapter->stop_port(adapter); - - netxen_nic_disable_int(adapter); - - netxen_release_tx_buffers(adapter); - - FLUSH_SCHEDULED_WORK(); - del_timer_sync(&adapter->watchdog_timer); - - return 0; -} - -static bool netxen_tso_check(struct net_device *netdev, - struct cmd_desc_type0 *desc, struct sk_buff *skb) -{ - bool tso = false; - u8 opcode = TX_ETHER_PKT; - __be16 protocol = skb->protocol; - u16 flags = 0; - - if (protocol == __constant_htons(ETH_P_8021Q)) { - struct vlan_ethhdr *vh = (struct vlan_ethhdr *)skb->data; - protocol = vh->h_vlan_encapsulated_proto; - flags = FLAGS_VLAN_TAGGED; - } - - if ((netdev->features & (NETIF_F_TSO | NETIF_F_TSO6)) && - skb_shinfo(skb)->gso_size > 0) { - - desc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); - desc->total_hdr_length = - skb_transport_offset(skb) + tcp_hdrlen(skb); - - opcode = (protocol == __constant_htons(ETH_P_IPV6)) ? - TX_TCP_LSO6 : TX_TCP_LSO; - tso = true; - - } else if (skb->ip_summed == CHECKSUM_PARTIAL) { - u8 l4proto; - - if (protocol == __constant_htons(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 == __constant_htons(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; - } - } - desc->tcp_hdr_offset = skb_transport_offset(skb); - desc->ip_hdr_offset = skb_network_offset(skb); - netxen_set_tx_flags_opcode(desc, flags, opcode); - return tso; -} - -static void -netxen_clean_tx_dma_mapping(struct pci_dev *pdev, - struct netxen_cmd_buffer *pbuf, int last) -{ - int k; - struct netxen_skb_frag *buffrag; - - buffrag = &pbuf->frag_array[0]; - pci_unmap_single(pdev, buffrag->dma, - buffrag->length, PCI_DMA_TODEVICE); - - for (k = 1; k < last; k++) { - buffrag = &pbuf->frag_array[k]; - pci_unmap_page(pdev, buffrag->dma, - buffrag->length, PCI_DMA_TODEVICE); - } -} - -static int netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) -{ - struct netxen_adapter *adapter = netdev_priv(netdev); - struct netxen_hardware_context *hw = &adapter->ahw; - unsigned int first_seg_len = skb->len - skb->data_len; - struct netxen_cmd_buffer *pbuf; - struct netxen_skb_frag *buffrag; - struct cmd_desc_type0 *hwdesc; - struct pci_dev *pdev = adapter->pdev; - dma_addr_t temp_dma; - int i, k; - - u32 producer, consumer; - int frag_count, no_of_desc; - u32 num_txd = adapter->max_tx_desc_count; - bool is_tso = false; - - frag_count = skb_shinfo(skb)->nr_frags + 1; - - /* There 4 fragments per descriptor */ - no_of_desc = (frag_count + 3) >> 2; - - producer = adapter->cmd_producer; - smp_mb(); - consumer = adapter->last_cmd_consumer; - if ((no_of_desc+2) > find_diff_among(producer, consumer, num_txd)) { - netif_stop_queue(netdev); - smp_mb(); - return NETDEV_TX_BUSY; - } - - /* Copy the descriptors into the hardware */ - hwdesc = &hw->cmd_desc_head[producer]; - memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); - /* Take skb->data itself */ - pbuf = &adapter->cmd_buf_arr[producer]; - - is_tso = netxen_tso_check(netdev, hwdesc, skb); - - pbuf->skb = skb; - pbuf->frag_count = frag_count; - buffrag = &pbuf->frag_array[0]; - temp_dma = pci_map_single(pdev, skb->data, first_seg_len, - PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(pdev, temp_dma)) - goto drop_packet; - - buffrag->dma = temp_dma; - buffrag->length = first_seg_len; - netxen_set_tx_frags_len(hwdesc, frag_count, skb->len); - netxen_set_tx_port(hwdesc, adapter->portnum); - - hwdesc->buffer1_length = cpu_to_le16(first_seg_len); - hwdesc->addr_buffer1 = cpu_to_le64(buffrag->dma); - - for (i = 1, k = 1; i < frag_count; i++, k++) { - struct skb_frag_struct *frag; - int len, temp_len; - unsigned long offset; - - /* move to next desc. if there is a need */ - if ((i & 0x3) == 0) { - k = 0; - producer = get_next_index(producer, num_txd); - hwdesc = &hw->cmd_desc_head[producer]; - memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); - pbuf = &adapter->cmd_buf_arr[producer]; - pbuf->skb = NULL; - } - frag = &skb_shinfo(skb)->frags[i - 1]; - len = frag->size; - offset = frag->page_offset; - - temp_len = len; - temp_dma = pci_map_page(pdev, frag->page, offset, - len, PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(pdev, temp_dma)) { - netxen_clean_tx_dma_mapping(pdev, pbuf, i); - goto drop_packet; - } - - buffrag++; - buffrag->dma = temp_dma; - buffrag->length = temp_len; - - switch (k) { - case 0: - hwdesc->buffer1_length = cpu_to_le16(temp_len); - hwdesc->addr_buffer1 = cpu_to_le64(temp_dma); - break; - case 1: - hwdesc->buffer2_length = cpu_to_le16(temp_len); - hwdesc->addr_buffer2 = cpu_to_le64(temp_dma); - break; - case 2: - hwdesc->buffer3_length = cpu_to_le16(temp_len); - hwdesc->addr_buffer3 = cpu_to_le64(temp_dma); - break; - case 3: - hwdesc->buffer4_length = cpu_to_le16(temp_len); - hwdesc->addr_buffer4 = cpu_to_le64(temp_dma); - break; - } - frag++; - } - producer = get_next_index(producer, num_txd); - - /* For LSO, we need to copy the MAC/IP/TCP headers into - * the descriptor ring - */ - if (is_tso) { - int hdr_len, first_hdr_len, more_hdr; - hdr_len = skb_transport_offset(skb) + tcp_hdrlen(skb); - if (hdr_len > (sizeof(struct cmd_desc_type0) - 2)) { - first_hdr_len = sizeof(struct cmd_desc_type0) - 2; - more_hdr = 1; - } else { - first_hdr_len = hdr_len; - more_hdr = 0; - } - /* copy the MAC/IP/TCP headers to the cmd descriptor list */ - hwdesc = &hw->cmd_desc_head[producer]; - pbuf = &adapter->cmd_buf_arr[producer]; - pbuf->skb = NULL; - - /* copy the first 64 bytes */ - memcpy(((void *)hwdesc) + 2, - (void *)(skb->data), first_hdr_len); - producer = get_next_index(producer, num_txd); - - if (more_hdr) { - hwdesc = &hw->cmd_desc_head[producer]; - pbuf = &adapter->cmd_buf_arr[producer]; - pbuf->skb = NULL; - /* copy the next 64 bytes - should be enough except - * for pathological case - */ - skb_copy_from_linear_data_offset(skb, first_hdr_len, - hwdesc, - (hdr_len - - first_hdr_len)); - producer = get_next_index(producer, num_txd); - } - } - - adapter->cmd_producer = producer; - adapter->stats.txbytes += skb->len; - - netxen_nic_update_cmd_producer(adapter, adapter->cmd_producer); - - adapter->stats.xmitcalled++; - netdev->trans_start = jiffies; - - 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 = adapter->pci_read_normalize(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", - netxen_nic_driver_name, temp_val); - - netif_carrier_off(netdev); - netif_stop_queue(netdev); - 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", - netxen_nic_driver_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", netxen_nic_driver_name, - temp_val); - } - } - adapter->temp = temp_state; - return rv; -} - -static void netxen_nic_handle_phy_intr(struct netxen_adapter *adapter) -{ - struct net_device *netdev = adapter->netdev; - u32 val, port, linkup; - - port = adapter->physical_port; - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { - val = adapter->pci_read_normalize(adapter, CRB_XG_STATE_P3); - val = XG_LINK_STATE_P3(adapter->ahw.pci_func, val); - linkup = (val == XG_LINK_UP_P3); - } else { - val = adapter->pci_read_normalize(adapter, CRB_XG_STATE); - if (adapter->ahw.board_type == NETXEN_NIC_GBE) - linkup = (val >> port) & 1; - else { - val = (val >> port*8) & 0xff; - linkup = (val == XG_LINK_UP); - } - } - - 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); - } - - netxen_nic_set_link_parameters(adapter); - } 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); - } - - netxen_nic_set_link_parameters(adapter); - } -} - -static void netxen_watchdog(unsigned long v) -{ - struct netxen_adapter *adapter = (struct netxen_adapter *)v; - - SCHEDULE_WORK(&adapter->watchdog_task); -} - -void netxen_watchdog_task(struct work_struct *work) -{ - struct netxen_adapter *adapter = - container_of(work, struct netxen_adapter, watchdog_task); - - if ((adapter->portnum == 0) && netxen_nic_check_temp(adapter)) - return; - - netxen_nic_handle_phy_intr(adapter); - - if (netif_running(adapter->netdev)) - mod_timer(&adapter->watchdog_timer, jiffies + 2 * HZ); -} - -static void netxen_tx_timeout(struct net_device *netdev) -{ - struct netxen_adapter *adapter = (struct netxen_adapter *) - netdev_priv(netdev); - 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); - - printk(KERN_ERR "%s %s: transmit timeout, resetting.\n", - netxen_nic_driver_name, adapter->netdev->name); - - netxen_nic_disable_int(adapter); - napi_disable(&adapter->napi); - - adapter->netdev->trans_start = jiffies; - - napi_enable(&adapter->napi); - netxen_nic_enable_int(adapter); - netif_wake_queue(adapter->netdev); -} - -/* - * netxen_nic_get_stats - Get System Network Statistics - * @netdev: network interface device structure - */ -struct net_device_stats *netxen_nic_get_stats(struct net_device *netdev) -{ - struct netxen_adapter *adapter = netdev_priv(netdev); - struct net_device_stats *stats = &adapter->net_stats; - - memset(stats, 0, sizeof(*stats)); - - /* total packets received */ - stats->rx_packets = adapter->stats.no_rcv; - /* total packets transmitted */ - stats->tx_packets = adapter->stats.xmitedframes + - adapter->stats.xmitfinished; - /* total bytes received */ - stats->rx_bytes = adapter->stats.rxbytes; - /* total bytes transmitted */ - stats->tx_bytes = adapter->stats.txbytes; - /* bad packets received */ - stats->rx_errors = adapter->stats.rcvdbadskb; - /* packet transmit problems */ - stats->tx_errors = adapter->stats.nocmddescriptor; - /* no space in linux buffers */ - stats->rx_dropped = adapter->stats.rxdropped; - /* no space available in linux */ - stats->tx_dropped = adapter->stats.txdropped; - - return stats; -} - -static irqreturn_t netxen_intr(int irq, void *data) -{ - struct netxen_adapter *adapter = data; - u32 status = 0; - - status = adapter->pci_read_immediate(adapter, ISR_INT_VECTOR); - - if (!(status & adapter->legacy_intr.int_vec_bit)) - return IRQ_NONE; - - if (adapter->ahw.revision_id >= NX_P3_B1) { - /* check interrupt state machine, to be sure */ - status = adapter->pci_read_immediate(adapter, - ISR_INT_STATE_REG); - if (!ISR_LEGACY_INT_TRIGGERED(status)) - return IRQ_NONE; - - } else { - unsigned long our_int = 0; - - our_int = adapter->pci_read_normalize(adapter, CRB_INT_VECTOR); - - /* not our interrupt */ - if (!test_and_clear_bit((7 + adapter->portnum), &our_int)) - return IRQ_NONE; - - /* claim interrupt */ - adapter->pci_write_normalize(adapter, - CRB_INT_VECTOR, (our_int & 0xffffffff)); - } - - /* clear interrupt */ - if (adapter->fw_major < 4) - netxen_nic_disable_int(adapter); - - adapter->pci_write_immediate(adapter, - adapter->legacy_intr.tgt_status_reg, - 0xffffffff); - /* read twice to ensure write is flushed */ - adapter->pci_read_immediate(adapter, ISR_INT_VECTOR); - adapter->pci_read_immediate(adapter, ISR_INT_VECTOR); - - napi_schedule(&adapter->napi); - - return IRQ_HANDLED; -} - -static irqreturn_t netxen_msi_intr(int irq, void *data) -{ - struct netxen_adapter *adapter = data; - - /* clear interrupt */ - adapter->pci_write_immediate(adapter, - msi_tgt_status[adapter->ahw.pci_func], 0xffffffff); - - napi_schedule(&adapter->napi); - return IRQ_HANDLED; -} - -static irqreturn_t netxen_msix_intr(int irq, void *data) -{ - struct netxen_adapter *adapter = data; - - napi_schedule(&adapter->napi); - return IRQ_HANDLED; -} - -static int netxen_nic_poll(struct napi_struct *napi, int budget) -{ - struct netxen_adapter *adapter = container_of(napi, struct netxen_adapter, napi); - int tx_complete; - int ctx; - int work_done; - - tx_complete = netxen_process_cmd_ring(adapter); - - work_done = 0; - for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { - /* - * Fairness issue. This will give undue weight to the - * receive context 0. - */ - - /* - * To avoid starvation, we give each of our receivers, - * a fraction of the quota. Sometimes, it might happen that we - * have enough quota to process every packet, but since all the - * packets are on one context, it gets only half of the quota, - * and ends up not processing it. - */ - work_done += netxen_process_rcv_ring(adapter, ctx, - budget / MAX_RCV_CTX); - } - - if ((work_done < budget) && tx_complete) { - netif_rx_complete(&adapter->napi); - netxen_nic_enable_int(adapter); - } - - return work_done; -} - -#ifdef CONFIG_NET_POLL_CONTROLLER -static void netxen_nic_poll_controller(struct net_device *netdev) -{ - struct netxen_adapter *adapter = netdev_priv(netdev); - disable_irq(adapter->irq); - netxen_intr(adapter->irq, adapter); - enable_irq(adapter->irq); -} -#endif - -static 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) -}; - -/* Driver Registration on NetXen card */ - -static int __init netxen_init_module(void) -{ - if ((netxen_workq = create_singlethread_workqueue("netxen")) == NULL) - return -ENOMEM; - - return pci_register_driver(&netxen_driver); -} - -module_init(netxen_init_module); - -static void __exit netxen_exit_module(void) -{ - pci_unregister_driver(&netxen_driver); - destroy_workqueue(netxen_workq); -} - -module_exit(netxen_exit_module); |