diff options
Diffstat (limited to 'drivers/net/netxen/netxen_nic_main.c')
| -rw-r--r-- | drivers/net/netxen/netxen_nic_main.c | 1261 |
1 files changed, 0 insertions, 1261 deletions
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c deleted file mode 100644 index a8fb439a4d0..00000000000 --- a/drivers/net/netxen/netxen_nic_main.c +++ /dev/null @@ -1,1261 +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 <net/ip.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; - -#define NETXEN_NETDEV_WEIGHT 120 -#define NETXEN_ADAPTER_UP_MAGIC 777 -#define NETXEN_NIC_PEG_TUNE 0 - -/* 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); - -int physical_port[] = {0, 1, 2, 3}; - -/* PCI Device ID Table */ -static struct pci_device_id netxen_pci_tbl[] __devinitdata = { - {PCI_DEVICE(0x4040, 0x0001)}, - {PCI_DEVICE(0x4040, 0x0002)}, - {PCI_DEVICE(0x4040, 0x0003)}, - {PCI_DEVICE(0x4040, 0x0004)}, - {PCI_DEVICE(0x4040, 0x0005)}, - {PCI_DEVICE(0x4040, 0x0024)}, - {PCI_DEVICE(0x4040, 0x0025)}, - {0,} -}; - -MODULE_DEVICE_TABLE(pci, netxen_pci_tbl); - -struct workqueue_struct *netxen_workq; -static void netxen_watchdog(unsigned long); - -static void netxen_nic_update_cmd_producer(struct netxen_adapter *adapter, - uint32_t crb_producer) -{ - switch (adapter->portnum) { - case 0: - writel(crb_producer, NETXEN_CRB_NORMALIZE - (adapter, CRB_CMD_PRODUCER_OFFSET)); - return; - case 1: - writel(crb_producer, NETXEN_CRB_NORMALIZE - (adapter, CRB_CMD_PRODUCER_OFFSET_1)); - return; - case 2: - writel(crb_producer, NETXEN_CRB_NORMALIZE - (adapter, CRB_CMD_PRODUCER_OFFSET_2)); - return; - case 3: - writel(crb_producer, NETXEN_CRB_NORMALIZE - (adapter, CRB_CMD_PRODUCER_OFFSET_3)); - return; - default: - printk(KERN_WARNING "We tried to update " - "CRB_CMD_PRODUCER_OFFSET for invalid " - "PCI function id %d\n", - adapter->portnum); - return; - } -} - -static void netxen_nic_update_cmd_consumer(struct netxen_adapter *adapter, - u32 crb_consumer) -{ - switch (adapter->portnum) { - case 0: - writel(crb_consumer, NETXEN_CRB_NORMALIZE - (adapter, CRB_CMD_CONSUMER_OFFSET)); - return; - case 1: - writel(crb_consumer, NETXEN_CRB_NORMALIZE - (adapter, CRB_CMD_CONSUMER_OFFSET_1)); - return; - case 2: - writel(crb_consumer, NETXEN_CRB_NORMALIZE - (adapter, CRB_CMD_CONSUMER_OFFSET_2)); - return; - case 3: - writel(crb_consumer, NETXEN_CRB_NORMALIZE - (adapter, CRB_CMD_CONSUMER_OFFSET_3)); - return; - default: - printk(KERN_WARNING "We tried to update " - "CRB_CMD_PRODUCER_OFFSET for invalid " - "PCI function id %d\n", - adapter->portnum); - return; - } -} - -#define ADAPTER_LIST_SIZE 12 - -static uint32_t msi_tgt_status[4] = { - ISR_INT_TARGET_STATUS, ISR_INT_TARGET_STATUS_F1, - ISR_INT_TARGET_STATUS_F2, ISR_INT_TARGET_STATUS_F3 -}; - -static uint32_t sw_int_mask[4] = { - CRB_SW_INT_MASK_0, CRB_SW_INT_MASK_1, - CRB_SW_INT_MASK_2, CRB_SW_INT_MASK_3 -}; - -static void netxen_nic_disable_int(struct netxen_adapter *adapter) -{ - u32 mask = 0x7ff; - int retries = 32; - int port = adapter->portnum; - int pci_fn = adapter->ahw.pci_func; - - if (adapter->msi_mode != MSI_MODE_MULTIFUNC) - writel(0x0, NETXEN_CRB_NORMALIZE(adapter, sw_int_mask[port])); - - if (adapter->intr_scheme != -1 && - adapter->intr_scheme != INTR_SCHEME_PERPORT) - writel(mask,PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK)); - - if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { - do { - writel(0xffffffff, - PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_TARGET_STATUS)); - mask = readl(pci_base_offset(adapter, ISR_INT_VECTOR)); - if (!(mask & 0x80)) - break; - udelay(10); - } while (--retries); - - if (!retries) { - printk(KERN_NOTICE "%s: Failed to disable interrupt completely\n", - netxen_nic_driver_name); - } - } else { - if (adapter->msi_mode == MSI_MODE_MULTIFUNC) { - writel(0xffffffff, PCI_OFFSET_SECOND_RANGE(adapter, - msi_tgt_status[pci_fn])); - } - } -} - -static void netxen_nic_enable_int(struct netxen_adapter *adapter) -{ - u32 mask; - int port = adapter->portnum; - - DPRINTK(1, INFO, "Entered ISR Enable \n"); - - if (adapter->intr_scheme != -1 && - adapter->intr_scheme != INTR_SCHEME_PERPORT) { - switch (adapter->ahw.board_type) { - case NETXEN_NIC_GBE: - mask = 0x77b; - break; - case NETXEN_NIC_XGBE: - mask = 0x77f; - break; - default: - mask = 0x7ff; - break; - } - - writel(mask, PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_MASK)); - } - - writel(0x1, NETXEN_CRB_NORMALIZE(adapter, sw_int_mask[port])); - - if (!(adapter->flags & NETXEN_NIC_MSI_ENABLED)) { - mask = 0xbff; - if (adapter->intr_scheme != -1 && - adapter->intr_scheme != INTR_SCHEME_PERPORT) { - writel(0X0, NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); - } - writel(mask, - PCI_OFFSET_SECOND_RANGE(adapter, ISR_INT_TARGET_MASK)); - } - - DPRINTK(1, INFO, "Done with enable Int\n"); -} - -/* - * 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; - int pci_using_dac, i = 0, err; - int ring; - struct netxen_recv_context *recv_ctx = NULL; - struct netxen_rcv_desc_ctx *rcv_desc = NULL; - struct netxen_cmd_buffer *cmd_buf_arr = NULL; - __le64 mac_addr[FLASH_NUM_PORTS + 1]; - int valid_mac = 0; - u32 val; - int pci_func_id = PCI_FUNC(pdev->devfn); - DECLARE_MAC_BUF(mac); - - printk(KERN_INFO "%s \n", netxen_nic_driver_string); - - if (pdev->class != 0x020000) { - printk(KERN_ERR"NetXen function %d, class %x will not " - "be enabled.\n",pci_func_id, pdev->class); - 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); - if (pdev->revision == NX_P2_C1 && - (pci_set_dma_mask(pdev, DMA_35BIT_MASK) == 0) && - (pci_set_consistent_dma_mask(pdev, DMA_35BIT_MASK) == 0)) { - pci_using_dac = 1; - } else { - if ((err = pci_set_dma_mask(pdev, DMA_32BIT_MASK)) || - (err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK))) - goto err_out_free_res; - - pci_using_dac = 0; - } - - - 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; - - adapter->ahw.pdev = pdev; - adapter->ahw.pci_func = pci_func_id; - - /* remap phys address */ - mem_base = pci_resource_start(pdev, 0); /* 0 is for BAR 0 */ - mem_len = pci_resource_len(pdev, 0); - - /* 128 Meg of memory */ - if (mem_len == NETXEN_PCI_128MB_SIZE) { - mem_ptr0 = ioremap(mem_base, FIRST_PAGE_GROUP_SIZE); - mem_ptr1 = ioremap(mem_base + SECOND_PAGE_GROUP_START, - SECOND_PAGE_GROUP_SIZE); - mem_ptr2 = ioremap(mem_base + THIRD_PAGE_GROUP_START, - THIRD_PAGE_GROUP_SIZE); - 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 { - err = -EIO; - goto err_out_free_netdev; - } - - if ((!mem_ptr0 && mem_len == NETXEN_PCI_128MB_SIZE) || - !mem_ptr1 || !mem_ptr2) { - DPRINTK(ERR, - "Cannot remap adapter memory aborting.:" - "0 -> %p, 1 -> %p, 2 -> %p\n", - mem_ptr0, mem_ptr1, mem_ptr2); - - err = -EIO; - goto err_out_iounmap; - } - 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.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; - - adapter->netdev = netdev; - adapter->pdev = pdev; - - netif_napi_add(netdev, &adapter->napi, - netxen_nic_poll, NETXEN_NETDEV_WEIGHT); - - /* 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; - - netdev->open = netxen_nic_open; - netdev->stop = netxen_nic_close; - netdev->hard_start_xmit = netxen_nic_xmit_frame; - netdev->get_stats = netxen_nic_get_stats; - netdev->set_multicast_list = netxen_nic_set_multi; - netdev->set_mac_address = netxen_nic_set_mac; - netdev->change_mtu = netxen_nic_change_mtu; - netdev->tx_timeout = netxen_tx_timeout; - netdev->watchdog_timeo = 2*HZ; - - netxen_nic_change_mtu(netdev, netdev->mtu); - - SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); -#ifdef CONFIG_NET_POLL_CONTROLLER - netdev->poll_controller = netxen_nic_poll_controller; -#endif - /* ScatterGather support */ - netdev->features = NETIF_F_SG; - netdev->features |= NETIF_F_IP_CSUM; - netdev->features |= NETIF_F_TSO; - - if (pci_using_dac) - netdev->features |= NETIF_F_HIGHDMA; - - if (pci_enable_msi(pdev)) - adapter->flags &= ~NETXEN_NIC_MSI_ENABLED; - else - adapter->flags |= NETXEN_NIC_MSI_ENABLED; - - netdev->irq = pdev->irq; - INIT_WORK(&adapter->tx_timeout_task, netxen_tx_timeout_task); - - /* - * 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; - - /* initialize the adapter */ - netxen_initialize_adapter_hw(adapter); - - /* - * Adapter in our case is quad port so initialize it before - * initializing the ports - */ - - netxen_initialize_adapter_ops(adapter); - - adapter->max_tx_desc_count = MAX_CMD_DESCRIPTORS_HOST; - if ((adapter->ahw.boardcfg.board_type == NETXEN_BRDTYPE_P2_SB35_4G) || - (adapter->ahw.boardcfg.board_type == - NETXEN_BRDTYPE_P2_SB31_2G)) - adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS_1G; - else - adapter->max_rx_desc_count = MAX_RCV_DESCRIPTORS; - adapter->max_jumbo_rx_desc_count = MAX_JUMBO_RCV_DESCRIPTORS; - adapter->max_lro_rx_desc_count = MAX_LRO_RCV_DESCRIPTORS; - - cmd_buf_arr = (struct netxen_cmd_buffer *)vmalloc(TX_RINGSIZE); - if (cmd_buf_arr == NULL) { - printk(KERN_ERR - "%s: Could not allocate cmd_buf_arr memory:%d\n", - netxen_nic_driver_name, (int)TX_RINGSIZE); - err = -ENOMEM; - goto err_out_free_adapter; - } - memset(cmd_buf_arr, 0, TX_RINGSIZE); - adapter->cmd_buf_arr = cmd_buf_arr; - - for (i = 0; i < MAX_RCV_CTX; ++i) { - recv_ctx = &adapter->recv_ctx[i]; - for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { - rcv_desc = &recv_ctx->rcv_desc[ring]; - switch (RCV_DESC_TYPE(ring)) { - case RCV_DESC_NORMAL: - rcv_desc->max_rx_desc_count = - adapter->max_rx_desc_count; - rcv_desc->flags = RCV_DESC_NORMAL; - rcv_desc->dma_size = RX_DMA_MAP_LEN; - rcv_desc->skb_size = MAX_RX_BUFFER_LENGTH; - break; - - case RCV_DESC_JUMBO: - rcv_desc->max_rx_desc_count = - adapter->max_jumbo_rx_desc_count; - rcv_desc->flags = RCV_DESC_JUMBO; - rcv_desc->dma_size = RX_JUMBO_DMA_MAP_LEN; - rcv_desc->skb_size = MAX_RX_JUMBO_BUFFER_LENGTH; - break; - - case RCV_RING_LRO: - rcv_desc->max_rx_desc_count = - adapter->max_lro_rx_desc_count; - rcv_desc->flags = RCV_DESC_LRO; - rcv_desc->dma_size = RX_LRO_DMA_MAP_LEN; - rcv_desc->skb_size = MAX_RX_LRO_BUFFER_LENGTH; - break; - - } - rcv_desc->rx_buf_arr = (struct netxen_rx_buffer *) - vmalloc(RCV_BUFFSIZE); - - if (rcv_desc->rx_buf_arr == NULL) { - printk(KERN_ERR "%s: Could not allocate " - "rcv_desc->rx_buf_arr memory:%d\n", - netxen_nic_driver_name, - (int)RCV_BUFFSIZE); - err = -ENOMEM; - goto err_out_free_rx_buffer; - } - memset(rcv_desc->rx_buf_arr, 0, RCV_BUFFSIZE); - } - - } - - netxen_initialize_adapter_sw(adapter); /* initialize the buffers in adapter */ - - /* Mezz cards have PCI function 0,2,3 enabled */ - if ((adapter->ahw.boardcfg.board_type == NETXEN_BRDTYPE_P2_SB31_10G_IMEZ) - && (pci_func_id >= 2)) - adapter->portnum = pci_func_id - 2; - -#ifdef CONFIG_IA64 - if(adapter->portnum == 0) { - netxen_pinit_from_rom(adapter, 0); - udelay(500); - netxen_load_firmware(adapter); - } -#endif - - init_timer(&adapter->watchdog_timer); - adapter->ahw.xg_linkup = 0; - adapter->watchdog_timer.function = &netxen_watchdog; - adapter->watchdog_timer.data = (unsigned long)adapter; - INIT_WORK(&adapter->watchdog_task, netxen_watchdog_task); - adapter->ahw.pdev = pdev; - adapter->ahw.revision_id = pdev->revision; - - /* make sure Window == 1 */ - netxen_nic_pci_change_crbwindow(adapter, 1); - - netxen_nic_update_cmd_producer(adapter, 0); - netxen_nic_update_cmd_consumer(adapter, 0); - writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_HOST_CMD_ADDR_LO)); - - if (netxen_is_flash_supported(adapter) == 0 && - netxen_get_flash_mac_addr(adapter, mac_addr) == 0) - valid_mac = 1; - else - valid_mac = 0; - - if (valid_mac) { - unsigned char *p = (unsigned char *)&mac_addr[adapter->portnum]; - netdev->dev_addr[0] = *(p + 5); - netdev->dev_addr[1] = *(p + 4); - netdev->dev_addr[2] = *(p + 3); - netdev->dev_addr[3] = *(p + 2); - netdev->dev_addr[4] = *(p + 1); - netdev->dev_addr[5] = *(p + 0); - - memcpy(netdev->perm_addr, netdev->dev_addr, - netdev->addr_len); - if (!is_valid_ether_addr(netdev->perm_addr)) { - printk(KERN_ERR "%s: Bad MAC address %s.\n", - netxen_nic_driver_name, - print_mac(mac, netdev->dev_addr)); - } else { - if (adapter->macaddr_set) - adapter->macaddr_set(adapter, - netdev->dev_addr); - } - } - - if (adapter->portnum == 0) { - err = netxen_initialize_adapter_offload(adapter); - if (err) - goto err_out_free_rx_buffer; - val = readl(NETXEN_CRB_NORMALIZE(adapter, - NETXEN_CAM_RAM(0x1fc))); - if (val == 0x55555555) { - /* This is the first boot after power up */ - netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(0x4), &val); - if (!(val & 0x4)) { - val |= 0x4; - netxen_nic_write_w0(adapter, NETXEN_PCIE_REG(0x4), val); - netxen_nic_read_w0(adapter, NETXEN_PCIE_REG(0x4), &val); - if (!(val & 0x4)) - printk(KERN_ERR "%s: failed to set MSI bit in PCI-e reg\n", - netxen_nic_driver_name); - } - val = readl(NETXEN_CRB_NORMALIZE(adapter, - NETXEN_ROMUSB_GLB_SW_RESET)); - printk(KERN_INFO"NetXen: read 0x%08x for reset reg.\n",val); - if (val != 0x80000f) { - /* clear the register for future unloads/loads */ - writel(0, NETXEN_CRB_NORMALIZE(adapter, - NETXEN_CAM_RAM(0x1fc))); - printk(KERN_ERR "ERROR in NetXen HW init sequence.\n"); - err = -ENODEV; - goto err_out_free_dev; - } - } - - /* clear the register for future unloads/loads */ - writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_CAM_RAM(0x1fc))); - printk(KERN_INFO "State: 0x%0x\n", - readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE))); - - /* - * Tell the hardware our version number. - */ - i = (_NETXEN_NIC_LINUX_MAJOR << 16) - | ((_NETXEN_NIC_LINUX_MINOR << 8)) - | (_NETXEN_NIC_LINUX_SUBVERSION); - writel(i, NETXEN_CRB_NORMALIZE(adapter, CRB_DRIVER_VERSION)); - - /* Unlock the HW, prompting the boot sequence */ - writel(1, - NETXEN_CRB_NORMALIZE(adapter, - NETXEN_ROMUSB_GLB_PEGTUNE_DONE)); - /* Handshake with the card before we register the devices. */ - netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); - } - - /* - * See if the firmware gave us a virtual-physical port mapping. - */ - i = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_V2P(adapter->portnum))); - if (i != 0x55555555) - physical_port[adapter->portnum] = i; - - 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_free_dev; - } - - pci_set_drvdata(pdev, adapter); - - switch (adapter->ahw.board_type) { - case NETXEN_NIC_GBE: - printk(KERN_INFO "%s: QUAD GbE board initialized\n", - netxen_nic_driver_name); - break; - - case NETXEN_NIC_XGBE: - printk(KERN_INFO "%s: XGbE board initialized\n", - netxen_nic_driver_name); - break; - } - - adapter->driver_mismatch = 0; - - return 0; - -err_out_free_dev: - if (adapter->portnum == 0) - netxen_free_adapter_offload(adapter); - -err_out_free_rx_buffer: - for (i = 0; i < MAX_RCV_CTX; ++i) { - recv_ctx = &adapter->recv_ctx[i]; - for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { - rcv_desc = &recv_ctx->rcv_desc[ring]; - if (rcv_desc->rx_buf_arr != NULL) { - vfree(rcv_desc->rx_buf_arr); - rcv_desc->rx_buf_arr = NULL; - } - } - } - vfree(cmd_buf_arr); - -err_out_free_adapter: - if (adapter->flags & NETXEN_NIC_MSI_ENABLED) - pci_disable_msi(pdev); - - pci_set_drvdata(pdev, NULL); - - if (db_ptr) - iounmap(db_ptr); - -err_out_iounmap: - 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_disable_device(pdev); - return err; -} - -static void __devexit netxen_nic_remove(struct pci_dev *pdev) -{ - struct netxen_adapter *adapter; - struct net_device *netdev; - struct netxen_rx_buffer *buffer; - struct netxen_recv_context *recv_ctx; - struct netxen_rcv_desc_ctx *rcv_desc; - int i, ctxid, ring; - static int init_firmware_done = 0; - - adapter = pci_get_drvdata(pdev); - if (adapter == NULL) - return; - - netdev = adapter->netdev; - - unregister_netdev(netdev); - - if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { - init_firmware_done++; - netxen_free_hw_resources(adapter); - } - - for (ctxid = 0; ctxid < MAX_RCV_CTX; ++ctxid) { - recv_ctx = &adapter->recv_ctx[ctxid]; - for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) { - rcv_desc = &recv_ctx->rcv_desc[ring]; - for (i = 0; i < rcv_desc->max_rx_desc_count; ++i) { - buffer = &(rcv_desc->rx_buf_arr[i]); - if (buffer->state == NETXEN_BUFFER_FREE) - continue; - pci_unmap_single(pdev, buffer->dma, - rcv_desc->dma_size, - PCI_DMA_FROMDEVICE); - if (buffer->skb != NULL) - dev_kfree_skb_any(buffer->skb); - } - vfree(rcv_desc->rx_buf_arr); - } - } - - vfree(adapter->cmd_buf_arr); - - if (adapter->portnum == 0) { - if (init_firmware_done) { - i = 100; - do { - if (dma_watchdog_shutdown_request(adapter) == 1) - break; - msleep(100); - if (dma_watchdog_shutdown_poll_result(adapter) == 1) - break; - } while (--i); - - if (i == 0) - printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n", - netdev->name); - - /* clear the register for future unloads/loads */ - writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_CAM_RAM(0x1fc))); - printk(KERN_INFO "State: 0x%0x\n", - readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE))); - - /* leave the hw in the same state as reboot */ - writel(0, NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE)); - netxen_pinit_from_rom(adapter, 0); - msleep(1); - netxen_load_firmware(adapter); - netxen_phantom_init(adapter, NETXEN_NIC_PEG_TUNE); - } - - /* clear the register for future unloads/loads */ - writel(0, NETXEN_CRB_NORMALIZE(adapter, NETXEN_CAM_RAM(0x1fc))); - printk(KERN_INFO "State: 0x%0x\n", - readl(NETXEN_CRB_NORMALIZE(adapter, CRB_CMDPEG_STATE))); - - i = 100; - do { - if (dma_watchdog_shutdown_request(adapter) == 1) - break; - msleep(100); - if (dma_watchdog_shutdown_poll_result(adapter) == 1) - break; - } while (--i); - - if (i) { - netxen_free_adapter_offload(adapter); - } else { - printk(KERN_ERR "%s: dma_watchdog_shutdown failed\n", - netdev->name); - } - } - - if (adapter->irq) - free_irq(adapter->irq, adapter); - - if (adapter->flags & NETXEN_NIC_MSI_ENABLED) - pci_disable_msi(pdev); - - iounmap(adapter->ahw.db_base); - iounmap(adapter->ahw.pci_base0); - iounmap(adapter->ahw.pci_base1); - 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 = (struct netxen_adapter *)netdev->priv; - int err = 0; - int ctx, ring; - irq_handler_t handler; - unsigned long flags = IRQF_SAMPLE_RANDOM; - - 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; - } - netxen_nic_flash_print(adapter); - - /* setup all the resources for the Phantom... */ - /* this include the descriptors for rcv, tx, and status */ - netxen_nic_clear_stats(adapter); - err = netxen_nic_hw_resources(adapter); - if (err) { - printk(KERN_ERR "Error in setting hw resources:%d\n", - err); - return err; - } - for (ctx = 0; ctx < MAX_RCV_CTX; ++ctx) { - for (ring = 0; ring < NUM_RCV_DESC_RINGS; ring++) - netxen_post_rx_buffers(adapter, ctx, ring); - } - adapter->irq = adapter->ahw.pdev->irq; - if (adapter->flags & NETXEN_NIC_MSI_ENABLED) - handler = netxen_msi_intr; - else { - flags |= IRQF_SHARED; - handler = netxen_intr; - } - err = request_irq(adapter->irq, handler, - flags, netdev->name, adapter); - if (err) { - printk(KERN_ERR "request_irq failed with: %d\n", err); - netxen_free_hw_resources(adapter); - return err; - } - - adapter->is_up = NETXEN_ADAPTER_UP_MAGIC; - } - /* Done here again so that even if phantom sw overwrote it, - * we set it */ - if (adapter->init_port - && adapter->init_port(adapter, adapter->portnum) != 0) { - printk(KERN_ERR "%s: Failed to initialize port %d\n", - netxen_nic_driver_name, adapter->portnum); - return -EIO; - } - if (adapter->macaddr_set) - adapter->macaddr_set(adapter, netdev->dev_addr); - - netxen_nic_set_link_parameters(adapter); - - netxen_nic_set_multi(netdev); - if (adapter->set_mtu) - adapter->set_mtu(adapter, netdev->mtu); - - if (!adapter->driver_mismatch) - mod_timer(&adapter->watchdog_timer, jiffies); - - napi_enable(&adapter->napi); - netxen_nic_enable_int(adapter); - - if (!adapter->driver_mismatch) - netif_start_queue(netdev); - - return 0; -} - -/* - * 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); - int i, j; - struct netxen_cmd_buffer *cmd_buff; - struct netxen_skb_frag *buffrag; - - 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); - - cmd_buff = adapter->cmd_buf_arr; - for (i = 0; i < adapter->max_tx_desc_count; i++) { - buffrag = cmd_buff->frag_array; - if (buffrag->dma) { - pci_unmap_single(adapter->pdev, buffrag->dma, - buffrag->length, PCI_DMA_TODEVICE); - buffrag->dma = 0ULL; - } - for (j = 0; j < cmd_buff->frag_count; j++) { - buffrag++; - if (buffrag->dma) { - pci_unmap_page(adapter->pdev, buffrag->dma, - buffrag->length, - PCI_DMA_TODEVICE); - buffrag->dma = 0ULL; - } - } - /* Free the skb we received in netxen_nic_xmit_frame */ - if (cmd_buff->skb) { - dev_kfree_skb_any(cmd_buff->skb); - cmd_buff->skb = NULL; - } - cmd_buff++; - } - if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { - FLUSH_SCHEDULED_WORK(); - del_timer_sync(&adapter->watchdog_timer); - } - - return 0; -} - -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_skb_frag *buffrag; - unsigned int i; - - u32 producer, consumer; - u32 saved_producer = 0; - struct cmd_desc_type0 *hwdesc; - int k; - struct netxen_cmd_buffer *pbuf = NULL; - int frag_count; - int no_of_desc; - u32 num_txd = adapter->max_tx_desc_count; - - frag_count = skb_shinfo(skb)->nr_frags + 1; - - /* There 4 fragments per descriptor */ - no_of_desc = (frag_count + 3) >> 2; - if (netdev->features & NETIF_F_TSO) { - if (skb_shinfo(skb)->gso_size > 0) { - - no_of_desc++; - if ((ip_hdrlen(skb) + tcp_hdrlen(skb) + - sizeof(struct ethhdr)) > - (sizeof(struct cmd_desc_type0) - 2)) { - no_of_desc++; - } - } - } - - 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 */ - saved_producer = producer; - hwdesc = &hw->cmd_desc_head[producer]; - memset(hwdesc, 0, sizeof(struct cmd_desc_type0)); - /* Take skb->data itself */ - pbuf = &adapter->cmd_buf_arr[producer]; - if ((netdev->features & NETIF_F_TSO) && skb_shinfo(skb)->gso_size > 0) { - pbuf->mss = skb_shinfo(skb)->gso_size; - hwdesc->mss = cpu_to_le16(skb_shinfo(skb)->gso_size); - } else { - pbuf->mss = 0; - hwdesc->mss = 0; - } - pbuf->total_length = skb->len; - pbuf->skb = skb; - pbuf->cmd = TX_ETHER_PKT; - pbuf->frag_count = frag_count; - pbuf->port = adapter->portnum; - buffrag = &pbuf->frag_array[0]; - buffrag->dma = pci_map_single(adapter->pdev, skb->data, first_seg_len, - PCI_DMA_TODEVICE); - buffrag->length = first_seg_len; - netxen_set_cmd_desc_totallength(hwdesc, skb->len); - netxen_set_cmd_desc_num_of_buff(hwdesc, frag_count); - netxen_set_cmd_desc_opcode(hwdesc, TX_ETHER_PKT); - - netxen_set_cmd_desc_port(hwdesc, adapter->portnum); - netxen_set_cmd_desc_ctxid(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; - dma_addr_t temp_dma; - - /* 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(adapter->pdev, frag->page, offset, - len, PCI_DMA_TODEVICE); - - 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); - - /* might change opcode to TX_TCP_LSO */ - netxen_tso_check(adapter, &hw->cmd_desc_head[saved_producer], skb); - - /* For LSO, we need to copy the MAC/IP/TCP headers into - * the descriptor ring - */ - if (netxen_get_cmd_desc_opcode(&hw->cmd_desc_head[saved_producer]) - == TX_TCP_LSO) { - int hdr_len, first_hdr_len, more_hdr; - hdr_len = hw->cmd_desc_head[saved_producer].total_hdr_length; - 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; -} - -static void netxen_watchdog(unsigned long v) -{ - struct netxen_adapter *adapter = (struct netxen_adapter *)v; - - SCHEDULE_WORK(&adapter->watchdog_task); -} - -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); -} - -static inline void -netxen_handle_int(struct netxen_adapter *adapter) -{ - netxen_nic_disable_int(adapter); - napi_schedule(&adapter->napi); -} - -irqreturn_t netxen_intr(int irq, void *data) -{ - struct netxen_adapter *adapter = data; - u32 our_int = 0; - - our_int = readl(NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); - /* not our interrupt */ - if ((our_int & (0x80 << adapter->portnum)) == 0) - return IRQ_NONE; - - if (adapter->intr_scheme == INTR_SCHEME_PERPORT) { - /* claim interrupt */ - writel(our_int & ~((u32)(0x80 << adapter->portnum)), - NETXEN_CRB_NORMALIZE(adapter, CRB_INT_VECTOR)); - } - - netxen_handle_int(adapter); - - return IRQ_HANDLED; -} - -irqreturn_t netxen_msi_intr(int irq, void *data) -{ - struct netxen_adapter *adapter = data; - - netxen_handle_int(adapter); - 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->netdev, &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) -{ - /* - * Wait for some time to allow the dma to drain, if any. - */ - msleep(100); - pci_unregister_driver(&netxen_driver); - destroy_workqueue(netxen_workq); -} - -module_exit(netxen_exit_module); |