diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/netxen/netxen_nic_main.c | 384 |
1 files changed, 203 insertions, 181 deletions
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c index 9d6e68fe0c9..c2b551fd711 100644 --- a/drivers/net/netxen/netxen_nic_main.c +++ b/drivers/net/netxen/netxen_nic_main.c @@ -457,6 +457,202 @@ static const struct net_device_ops netxen_netdev_ops = { #endif }; +static void +netxen_setup_intr(struct netxen_adapter *adapter) +{ + struct netxen_legacy_intr_set *legacy_intrp; + struct pci_dev *pdev = adapter->pdev; + + adapter->flags &= ~(NETXEN_NIC_MSI_ENABLED | NETXEN_NIC_MSIX_ENABLED); + adapter->intr_scheme = -1; + adapter->msi_mode = -1; + + 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); + 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"); + } +} + +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 first_page_group_end; + unsigned long first_page_group_start; + 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_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 * 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.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; + + 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) { @@ -521,20 +717,10 @@ 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 = 0, pci_len0 = 0; int i = 0, err; int first_driver; 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) @@ -589,128 +775,14 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 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; + err = netxen_setup_pci_map(adapter); + if (err) goto err_out_free_netdev; - } - - dev_info(&pdev->dev, "%dMB memory map\n", (int)(mem_len>>20)); - - if (NX_IS_REVISION_P3(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_iounmap; - } - - 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; - } - -skip_doorbell: - 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; @@ -741,12 +813,6 @@ skip_doorbell: 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); @@ -813,32 +879,7 @@ skip_doorbell: 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"); - } + netxen_setup_intr(adapter); if (adapter->flags & NETXEN_NIC_MSIX_ENABLED) netdev->irq = adapter->msix_entries[0].vector; @@ -886,23 +927,13 @@ request_msi: 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); + netxen_teardown_intr(adapter); 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); + netxen_cleanup_pci_map(adapter); err_out_free_netdev: free_netdev(netdev); @@ -944,18 +975,9 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev) 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); + netxen_teardown_intr(adapter); - iounmap(adapter->ahw.pci_base0); - if (adapter->ahw.db_base != NULL) - iounmap(adapter->ahw.db_base); - if (adapter->ahw.pci_base1 != NULL) - iounmap(adapter->ahw.pci_base1); - if (adapter->ahw.pci_base2 != NULL) - iounmap(adapter->ahw.pci_base2); + netxen_cleanup_pci_map(adapter); pci_release_regions(pdev); pci_disable_device(pdev); |