diff options
Diffstat (limited to 'drivers/net/netxen/netxen_nic_main.c')
| -rw-r--r-- | drivers/net/netxen/netxen_nic_main.c | 1803 |
1 files changed, 0 insertions, 1803 deletions
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c deleted file mode 100644 index 2919a2d12bf..00000000000 --- a/drivers/net/netxen/netxen_nic_main.c +++ /dev/null @@ -1,1803 +0,0 @@ -/* - * Copyright (C) 2003 - 2009 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 Inc, - * 18922 Forge Drive - * Cupertino, CA 95014-0701 - * - */ - -#include <linux/vmalloc.h> -#include <linux/interrupt.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); - -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, - struct nx_host_tx_ring *tx_ring) -{ - NXWR32(adapter, tx_ring->crb_cmd_producer, tx_ring->producer); - - if (netxen_tx_avail(tx_ring) <= TX_STOP_THRESH) { - netif_stop_queue(adapter->netdev); - smp_mb(); - } -} - -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) -{ - NXWR32(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; - - NXWR32(adapter, sds_ring->crb_intr_mask, 0); -} - -static inline void netxen_nic_enable_int(struct nx_host_sds_ring *sds_ring) -{ - struct netxen_adapter *adapter = sds_ring->adapter; - - NXWR32(adapter, sds_ring->crb_intr_mask, 0x1); - - if (!NETXEN_IS_MSI_FAMILY(adapter)) - adapter->pci_write_immediate(adapter, - adapter->legacy_intr.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); -} - -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 1; - - 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_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]; - napi_disable(&sds_ring->napi); - netxen_nic_disable_int(sds_ring); - synchronize_irq(sds_ring->irq); - } -} - -static int nx_set_dma_mask(struct netxen_adapter *adapter, uint8_t revision_id) -{ - struct pci_dev *pdev = adapter->pdev; - uint64_t mask, cmask; - - adapter->pci_using_dac = 0; - - mask = DMA_BIT_MASK(32); - /* - * 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. - */ - cmask = DMA_BIT_MASK(32); - -#ifndef CONFIG_IA64 - if (revision_id >= NX_P3_B0) - mask = DMA_BIT_MASK(39); - else if (revision_id == NX_P2_C1) - mask = DMA_BIT_MASK(35); -#endif - 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; - 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; - mask = (1ULL<<(32+shift)) - 1; - - err = pci_set_dma_mask(pdev, mask); - if (err) - return pci_set_dma_mask(pdev, old_mask); - } - - return 0; -} - -static void netxen_check_options(struct netxen_adapter *adapter) -{ - if (adapter->ahw.port_type == NETXEN_NIC_XGBE) - adapter->num_rxd = MAX_RCV_DESCRIPTORS_10G; - else if (adapter->ahw.port_type == NETXEN_NIC_GBE) - adapter->num_rxd = MAX_RCV_DESCRIPTORS_1G; - - adapter->msix_supported = 0; - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) { - adapter->msix_supported = !!use_msi_x; - adapter->rss_supported = !!use_msi_x; - } else if (adapter->fw_version >= NETXEN_VERSION_CODE(3, 4, 336)) { - switch (adapter->ahw.board_type) { - case NETXEN_BRDTYPE_P2_SB31_10G: - case NETXEN_BRDTYPE_P2_SB31_10G_CX4: - adapter->msix_supported = !!use_msi_x; - adapter->rss_supported = !!use_msi_x; - break; - default: - break; - } - } - - adapter->num_txd = MAX_CMD_DESCRIPTORS_HOST; - adapter->num_jumbo_rxd = MAX_JUMBO_RCV_DESCRIPTORS; - adapter->num_lro_rxd = MAX_LRO_RCV_DESCRIPTORS; - - return; -} - -static int -netxen_check_hw_init(struct netxen_adapter *adapter, int first_boot) -{ - 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); - 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; - __le64 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); - - /* 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; -} - -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(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 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 -}; - -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->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; - - 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->msi_tgt_status = - 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 *mem_ptr0 = NULL; - void __iomem *mem_ptr1 = NULL; - void __iomem *mem_ptr2 = NULL; - void __iomem *db_ptr = NULL; - - unsigned long mem_base, mem_len, db_base, db_len = 0, pci_len0 = 0; - - struct pci_dev *pdev = adapter->pdev; - int pci_func = adapter->ahw.pci_func; - - 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->curr_window = 255; - 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_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); - } 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); - } else if (mem_len == NETXEN_PCI_2MB_SIZE) { - adapter->hw_write_wx = netxen_nic_hw_write_wx_2M; - adapter->hw_read_wx = netxen_nic_hw_read_wx_2M; - adapter->pci_read_immediate = netxen_nic_pci_read_immediate_2M; - adapter->pci_write_immediate = - netxen_nic_pci_write_immediate_2M; - adapter->pci_set_window = netxen_nic_pci_set_window_2M; - adapter->pci_mem_read = netxen_nic_pci_mem_read_2M; - adapter->pci_mem_write = netxen_nic_pci_mem_write_2M; - - mem_ptr0 = pci_ioremap_bar(pdev, 0); - if (mem_ptr0 == NULL) { - dev_err(&pdev->dev, "failed to map PCI bar 0\n"); - return -EIO; - } - pci_len0 = mem_len; - - adapter->ahw.ddr_mn_window = 0; - adapter->ahw.qdr_sn_window = 0; - - adapter->ahw.mn_win_crb = 0x100000 + PCIX_MN_WINDOW + - (pci_func * 0x20); - adapter->ahw.ms_win_crb = 0x100000 + PCIX_SN_WINDOW; - if (pci_func < 4) - adapter->ahw.ms_win_crb += (pci_func * 0x20); - else - adapter->ahw.ms_win_crb += - 0xA0 + ((pci_func - 4) * 0x10); - } else { - return -EIO; - } - - dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); - - adapter->ahw.pci_base0 = mem_ptr0; - adapter->ahw.pci_len0 = pci_len0; - adapter->ahw.pci_base1 = mem_ptr1; - adapter->ahw.pci_base2 = mem_ptr2; - - 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 int -netxen_start_firmware(struct netxen_adapter *adapter, int request_fw) -{ - int val, err, first_boot; - struct pci_dev *pdev = adapter->pdev; - - int first_driver = 0; - - if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) - first_driver = (adapter->portnum == 0); - else - first_driver = (adapter->ahw.pci_func == 0); - - if (!first_driver) - 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; - } - - if (request_fw) - netxen_request_firmware(adapter); - - if (first_boot != 0x55555555) { - NXWR32(adapter, CRB_CMDPEG_STATE, 0); - netxen_pinit_from_rom(adapter, 0); - msleep(1); - } - - NXWR32(adapter, CRB_DMA_SHIFT, 0x55555555); - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) - netxen_set_port_mode(adapter); - - netxen_load_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_initialize_adapter_offload(adapter); - if (err) - return err; - - /* - * 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_adapter_offload(adapter); - return err; - } - - return 0; -} - -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 = IRQF_SAMPLE_RANDOM; - 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 int -netxen_nic_up(struct netxen_adapter *adapter, struct net_device *netdev) -{ - int err; - - 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, netdev->dev_addr); - - adapter->set_multi(netdev); - adapter->set_mtu(adapter, netdev->mtu); - - adapter->ahw.linkup = 0; - - netxen_napi_enable(adapter); - - if (adapter->max_sds_rings > 1) - netxen_config_rss(adapter, 1); - - if (adapter->capabilities & NX_FW_CAPABILITY_LINK_NOTIFICATION) - netxen_linkevent_request(adapter, 1); - else - netxen_nic_set_link_parameters(adapter); - - mod_timer(&adapter->watchdog_timer, jiffies); - - return 0; -} - -static void -netxen_nic_down(struct netxen_adapter *adapter, struct net_device *netdev) -{ - netif_carrier_off(netdev); - netif_stop_queue(netdev); - - if (adapter->stop_port) - adapter->stop_port(adapter); - - if (NX_IS_REVISION_P3(adapter->ahw.revision_id)) - netxen_p3_free_mac_list(adapter); - - netxen_napi_disable(adapter); - - netxen_release_tx_buffers(adapter); - - FLUSH_SCHEDULED_WORK(); - del_timer_sync(&adapter->watchdog_timer); -} - - -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; - - 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->fw_major < 4) { - tx_ring = adapter->tx_ring; - tx_ring->crb_cmd_producer = crb_cmd_producer[adapter->portnum]; - tx_ring->crb_cmd_consumer = crb_cmd_consumer[adapter->portnum]; - - tx_ring->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; - } - - 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) -{ - netxen_release_rx_buffers(adapter); - netxen_free_hw_resources(adapter); - netxen_nic_free_irq(adapter); - netxen_free_sw_resources(adapter); - - adapter->is_up = 0; -} - -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; - - 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); - spin_lock_init(&adapter->tx_clean_lock); - INIT_LIST_HEAD(&adapter->mac_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; - adapter->rx_csum = 1; - adapter->mc_enabled = 0; - if (NX_IS_REVISION_P3(revision_id)) - adapter->max_mc_count = 38; - else - adapter->max_mc_count = 16; - - netdev->netdev_ops = &netxen_netdev_ops; - netdev->watchdog_timeo = 2*HZ; - - netxen_nic_change_mtu(netdev, netdev->mtu); - - SET_ETHTOOL_OPS(netdev, &netxen_nic_ethtool_ops); - - netdev->features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO); - netdev->features |= (NETIF_F_GRO); - netdev->vlan_features |= (NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_TSO); - - if (NX_IS_REVISION_P3(revision_id)) { - netdev->features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6); - netdev->vlan_features |= (NETIF_F_IPV6_CSUM | NETIF_F_TSO6); - } - - if (adapter->pci_using_dac) { - netdev->features |= NETIF_F_HIGHDMA; - netdev->vlan_features |= NETIF_F_HIGHDMA; - } - - if (netxen_nic_get_board_info(adapter) != 0) { - printk("%s: Error getting board config info.\n", - netxen_nic_driver_name); - err = -EIO; - goto err_out_iounmap; - } - - netxen_initialize_adapter_ops(adapter); - - /* Mezz cards have PCI function 0,2,3 enabled */ - switch (adapter->ahw.board_type) { - case NETXEN_BRDTYPE_P2_SB31_10G_IMEZ: - case NETXEN_BRDTYPE_P2_SB31_10G_HMEZ: - if (pci_func_id >= 2) - adapter->portnum = pci_func_id - 2; - break; - default: - break; - } - - err = netxen_start_firmware(adapter, 1); - if (err) - goto err_out_iounmap; - - nx_update_dma_mask(adapter); - - netxen_nic_get_firmware_info(adapter); - - /* - * See if the firmware gave us a virtual-physical port mapping. - */ - adapter->physical_port = adapter->portnum; - if (adapter->fw_major < 4) { - i = NXRD32(adapter, CRB_V2P(adapter->portnum)); - if (i != 0x55555555) - adapter->physical_port = i; - } - - netxen_check_options(adapter); - - netxen_setup_intr(adapter); - - netdev->irq = adapter->msix_entries[0].vector; - - if (netxen_napi_add(adapter, netdev)) - 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.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; - } - - return 0; - -err_out_disable_msi: - netxen_teardown_intr(adapter); - - netxen_free_adapter_offload(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; - - unregister_netdev(netdev); - - if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) { - netxen_nic_detach(adapter); - } - - if (adapter->portnum == 0) - netxen_free_adapter_offload(adapter); - - netxen_teardown_intr(adapter); - netxen_free_sds_rings(&adapter->recv_ctx); - - netxen_cleanup_pci_map(adapter); - - netxen_release_firmware(adapter); - - pci_release_regions(pdev); - pci_disable_device(pdev); - pci_set_drvdata(pdev, NULL); - - free_netdev(netdev); -} - -#ifdef CONFIG_PM -static int -netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state) -{ - - struct netxen_adapter *adapter = pci_get_drvdata(pdev); - struct net_device *netdev = adapter->netdev; - - netif_device_detach(netdev); - - if (netif_running(netdev)) - netxen_nic_down(adapter, netdev); - - if (adapter->is_up == NETXEN_ADAPTER_UP_MAGIC) - netxen_nic_detach(adapter); - - pci_save_state(pdev); - - 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) -{ - struct netxen_adapter *adapter = pci_get_drvdata(pdev); - struct net_device *netdev = adapter->netdev; - int err; - - pci_set_power_state(pdev, PCI_D0); - pci_restore_state(pdev); - - err = pci_enable_device(pdev); - if (err) - return err; - - adapter->curr_window = 255; - - err = netxen_start_firmware(adapter, 0); - if (err) { - dev_err(&pdev->dev, "failed to start firmware\n"); - return err; - } - - if (netif_running(netdev)) { - err = netxen_nic_attach(adapter); - if (err) - return err; - - err = netxen_nic_up(adapter, netdev); - if (err) - return err; - - netif_device_attach(netdev); - } - - return 0; -} -#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; - - if (adapter->is_up != NETXEN_ADAPTER_UP_MAGIC) { - 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 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 == cpu_to_be16(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 == cpu_to_be16(ETH_P_IPV6)) ? - TX_TCP_LSO6 : TX_TCP_LSO; - tso = true; - - } 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; - } - } - 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 inline void -netxen_clear_cmddesc(u64 *desc) -{ - int i; - for (i = 0; i < 8; i++) - desc[i] = 0ULL; -} - -static int -netxen_nic_xmit_frame(struct sk_buff *skb, struct net_device *netdev) -{ - struct netxen_adapter *adapter = netdev_priv(netdev); - struct nx_host_tx_ring *tx_ring = adapter->tx_ring; - unsigned int first_seg_len = skb->len - skb->data_len; - struct netxen_cmd_buffer *pbuf; - struct netxen_skb_frag *buffrag; - struct cmd_desc_type0 *hwdesc; - struct pci_dev *pdev = adapter->pdev; - dma_addr_t temp_dma; - int i, k; - - u32 producer; - int frag_count, no_of_desc; - u32 num_txd = tx_ring->num_desc; - bool is_tso = false; - - frag_count = skb_shinfo(skb)->nr_frags + 1; - - /* 4 fragments per cmd des */ - no_of_desc = (frag_count + 3) >> 2; - - if (unlikely(no_of_desc + 2) > netxen_tx_avail(tx_ring)) { - netif_stop_queue(netdev); - return NETDEV_TX_BUSY; - } - - producer = tx_ring->producer; - - hwdesc = &tx_ring->desc_head[producer]; - netxen_clear_cmddesc((u64 *)hwdesc); - pbuf = &tx_ring->cmd_buf_arr[producer]; - - is_tso = netxen_tso_check(netdev, hwdesc, skb); - - 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->buffer_length[0] = 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 = &tx_ring->desc_head[producer]; - netxen_clear_cmddesc((u64 *)hwdesc); - pbuf = &tx_ring->cmd_buf_arr[producer]; - pbuf->skb = NULL; - } - frag = &skb_shinfo(skb)->frags[i - 1]; - len = frag->size; - offset = frag->page_offset; - - temp_len = len; - temp_dma = pci_map_page(pdev, frag->page, offset, - len, PCI_DMA_TODEVICE); - if (pci_dma_mapping_error(pdev, temp_dma)) { - netxen_clean_tx_dma_mapping(pdev, pbuf, i); - goto drop_packet; - } - - buffrag++; - buffrag->dma = temp_dma; - buffrag->length = temp_len; - - hwdesc->buffer_length[k] = cpu_to_le16(temp_len); - switch (k) { - case 0: - hwdesc->addr_buffer1 = cpu_to_le64(temp_dma); - break; - case 1: - hwdesc->addr_buffer2 = cpu_to_le64(temp_dma); - break; - case 2: - hwdesc->addr_buffer3 = cpu_to_le64(temp_dma); - break; - case 3: - 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 = &tx_ring->desc_head[producer]; - pbuf = &tx_ring->cmd_buf_arr[producer]; - pbuf->skb = NULL; - - /* copy the first 64 bytes */ - memcpy(((void *)hwdesc) + 2, - (void *)(skb->data), first_hdr_len); - producer = get_next_index(producer, num_txd); - - if (more_hdr) { - hwdesc = &tx_ring->desc_head[producer]; - pbuf = &tx_ring->cmd_buf_arr[producer]; - pbuf->skb = NULL; - /* copy the next 64 bytes - should be enough except - * for pathological case - */ - skb_copy_from_linear_data_offset(skb, first_hdr_len, - hwdesc, - (hdr_len - - first_hdr_len)); - producer = get_next_index(producer, num_txd); - } - } - - tx_ring->producer = producer; - adapter->stats.txbytes += skb->len; - - netxen_nic_update_cmd_producer(adapter, tx_ring); - - adapter->stats.xmitcalled++; - - 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", - 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; -} - -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); - } - - if (!adapter->has_link_events) - 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); - } - - if (!adapter->has_link_events) - netxen_nic_set_link_parameters(adapter); - } -} - -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); - if (adapter->ahw.port_type == NETXEN_NIC_GBE) - linkup = (val >> port) & 1; - else { - val = (val >> port*8) & 0xff; - linkup = (val == XG_LINK_UP); - } - } - - netxen_advert_link_change(adapter, linkup); -} - -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; - - if (!adapter->has_link_events) - 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_napi_disable(adapter); - - adapter->netdev->trans_start = jiffies; - - netxen_napi_enable(adapter); - netif_wake_queue(adapter->netdev); -} - -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)); - - stats->rx_packets = adapter->stats.no_rcv; - 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 = 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 = NXRD32(adapter, CRB_INT_VECTOR); - - /* not our interrupt */ - if (!test_and_clear_bit((7 + adapter->portnum), &our_int)) - return IRQ_NONE; - - /* claim interrupt */ - NXWR32(adapter, CRB_INT_VECTOR, (our_int & 0xffffffff)); - } - - /* clear interrupt */ - if (adapter->fw_major < 4) - netxen_nic_disable_int(sds_ring); - - 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(&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 */ - adapter->pci_write_immediate(adapter, - adapter->msi_tgt_status, 0xffffffff); - - 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); - netxen_nic_enable_int(sds_ring); - } - - 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), -#ifdef CONFIG_PM - .suspend = netxen_nic_suspend, - .resume = netxen_nic_resume -#endif -}; - -/* Driver Registration on NetXen card */ - -static int __init netxen_init_module(void) -{ - printk(KERN_INFO "%s\n", netxen_nic_driver_string); - - 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); |