diff options
Diffstat (limited to '')
-rw-r--r-- | drivers/net/ethernet/wangxun/txgbe/txgbe_main.c | 270 |
1 files changed, 265 insertions, 5 deletions
diff --git a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c index 409103d5ac2b..adfa4e7d0d52 100644 --- a/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c +++ b/drivers/net/ethernet/wangxun/txgbe/txgbe_main.c @@ -8,6 +8,7 @@ #include <linux/string.h> #include <linux/aer.h> #include <linux/etherdevice.h> +#include <net/ip.h> #include "../libwx/wx_type.h" #include "../libwx/wx_hw.h" @@ -72,6 +73,143 @@ static int txgbe_enumerate_functions(struct txgbe_adapter *adapter) return physfns; } +static void txgbe_sync_mac_table(struct txgbe_adapter *adapter) +{ + struct txgbe_hw *hw = &adapter->hw; + struct wx_hw *wxhw = &hw->wxhw; + int i; + + for (i = 0; i < wxhw->mac.num_rar_entries; i++) { + if (adapter->mac_table[i].state & TXGBE_MAC_STATE_MODIFIED) { + if (adapter->mac_table[i].state & TXGBE_MAC_STATE_IN_USE) { + wx_set_rar(wxhw, i, + adapter->mac_table[i].addr, + adapter->mac_table[i].pools, + WX_PSR_MAC_SWC_AD_H_AV); + } else { + wx_clear_rar(wxhw, i); + } + adapter->mac_table[i].state &= ~(TXGBE_MAC_STATE_MODIFIED); + } + } +} + +/* this function destroys the first RAR entry */ +static void txgbe_mac_set_default_filter(struct txgbe_adapter *adapter, + u8 *addr) +{ + struct wx_hw *wxhw = &adapter->hw.wxhw; + + memcpy(&adapter->mac_table[0].addr, addr, ETH_ALEN); + adapter->mac_table[0].pools = 1ULL; + adapter->mac_table[0].state = (TXGBE_MAC_STATE_DEFAULT | + TXGBE_MAC_STATE_IN_USE); + wx_set_rar(wxhw, 0, adapter->mac_table[0].addr, + adapter->mac_table[0].pools, + WX_PSR_MAC_SWC_AD_H_AV); +} + +static void txgbe_flush_sw_mac_table(struct txgbe_adapter *adapter) +{ + struct wx_hw *wxhw = &adapter->hw.wxhw; + u32 i; + + for (i = 0; i < wxhw->mac.num_rar_entries; i++) { + adapter->mac_table[i].state |= TXGBE_MAC_STATE_MODIFIED; + adapter->mac_table[i].state &= ~TXGBE_MAC_STATE_IN_USE; + memset(adapter->mac_table[i].addr, 0, ETH_ALEN); + adapter->mac_table[i].pools = 0; + } + txgbe_sync_mac_table(adapter); +} + +static int txgbe_del_mac_filter(struct txgbe_adapter *adapter, u8 *addr, u16 pool) +{ + struct wx_hw *wxhw = &adapter->hw.wxhw; + u32 i; + + if (is_zero_ether_addr(addr)) + return -EINVAL; + + /* search table for addr, if found, set to 0 and sync */ + for (i = 0; i < wxhw->mac.num_rar_entries; i++) { + if (ether_addr_equal(addr, adapter->mac_table[i].addr)) { + if (adapter->mac_table[i].pools & (1ULL << pool)) { + adapter->mac_table[i].state |= TXGBE_MAC_STATE_MODIFIED; + adapter->mac_table[i].state &= ~TXGBE_MAC_STATE_IN_USE; + adapter->mac_table[i].pools &= ~(1ULL << pool); + txgbe_sync_mac_table(adapter); + } + return 0; + } + + if (adapter->mac_table[i].pools != (1 << pool)) + continue; + if (!ether_addr_equal(addr, adapter->mac_table[i].addr)) + continue; + + adapter->mac_table[i].state |= TXGBE_MAC_STATE_MODIFIED; + adapter->mac_table[i].state &= ~TXGBE_MAC_STATE_IN_USE; + memset(adapter->mac_table[i].addr, 0, ETH_ALEN); + adapter->mac_table[i].pools = 0; + txgbe_sync_mac_table(adapter); + return 0; + } + return -ENOMEM; +} + +static void txgbe_reset(struct txgbe_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + struct txgbe_hw *hw = &adapter->hw; + u8 old_addr[ETH_ALEN]; + int err; + + err = txgbe_reset_hw(hw); + if (err != 0) + dev_err(&adapter->pdev->dev, "Hardware Error: %d\n", err); + + /* do not flush user set addresses */ + memcpy(old_addr, &adapter->mac_table[0].addr, netdev->addr_len); + txgbe_flush_sw_mac_table(adapter); + txgbe_mac_set_default_filter(adapter, old_addr); +} + +static void txgbe_disable_device(struct txgbe_adapter *adapter) +{ + struct net_device *netdev = adapter->netdev; + struct wx_hw *wxhw = &adapter->hw.wxhw; + + wx_disable_pcie_master(wxhw); + /* disable receives */ + wx_disable_rx(wxhw); + + netif_carrier_off(netdev); + netif_tx_disable(netdev); + + if (wxhw->bus.func < 2) + wr32m(wxhw, TXGBE_MIS_PRB_CTL, TXGBE_MIS_PRB_CTL_LAN_UP(wxhw->bus.func), 0); + else + dev_err(&adapter->pdev->dev, + "%s: invalid bus lan id %d\n", + __func__, wxhw->bus.func); + + if (!(((wxhw->subsystem_device_id & WX_NCSI_MASK) == WX_NCSI_SUP) || + ((wxhw->subsystem_device_id & WX_WOL_MASK) == WX_WOL_SUP))) { + /* disable mac transmiter */ + wr32m(wxhw, WX_MAC_TX_CFG, WX_MAC_TX_CFG_TE, 0); + } + + /* Disable the Tx DMA engine */ + wr32m(wxhw, WX_TDM_CTL, WX_TDM_CTL_TE, 0); +} + +static void txgbe_down(struct txgbe_adapter *adapter) +{ + txgbe_disable_device(adapter); + txgbe_reset(adapter); +} + /** * txgbe_sw_init - Initialize general software structures (struct txgbe_adapter) * @adapter: board private structure to initialize @@ -104,8 +242,65 @@ static int txgbe_sw_init(struct txgbe_adapter *adapter) break; } + wxhw->mac.num_rar_entries = TXGBE_SP_RAR_ENTRIES; wxhw->mac.max_tx_queues = TXGBE_SP_MAX_TX_QUEUES; wxhw->mac.max_rx_queues = TXGBE_SP_MAX_RX_QUEUES; + wxhw->mac.mcft_size = TXGBE_SP_MC_TBL_SIZE; + + adapter->mac_table = kcalloc(wxhw->mac.num_rar_entries, + sizeof(struct txgbe_mac_addr), + GFP_KERNEL); + if (!adapter->mac_table) { + netif_err(adapter, probe, adapter->netdev, + "mac_table allocation failed\n"); + return -ENOMEM; + } + + return 0; +} + +/** + * txgbe_open - Called when a network interface is made active + * @netdev: network interface device structure + * + * Returns 0 on success, negative value on failure + * + * The open entry point is called when a network interface is made + * active by the system (IFF_UP). + **/ +static int txgbe_open(struct net_device *netdev) +{ + return 0; +} + +/** + * txgbe_close_suspend - actions necessary to both suspend and close flows + * @adapter: the private adapter struct + * + * This function should contain the necessary work common to both suspending + * and closing of the device. + */ +static void txgbe_close_suspend(struct txgbe_adapter *adapter) +{ + txgbe_disable_device(adapter); +} + +/** + * txgbe_close - Disables a network interface + * @netdev: network interface device structure + * + * Returns 0, this is not allowed to fail + * + * The close entry point is called when an interface is de-activated + * by the OS. The hardware is still under the drivers control, but + * needs to be disabled. A global MAC reset is issued to stop the + * hardware, and all transmit and receive resources are freed. + **/ +static int txgbe_close(struct net_device *netdev) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + + txgbe_down(adapter); return 0; } @@ -117,6 +312,11 @@ static void txgbe_dev_shutdown(struct pci_dev *pdev, bool *enable_wake) netif_device_detach(netdev); + rtnl_lock(); + if (netif_running(netdev)) + txgbe_close_suspend(adapter); + rtnl_unlock(); + pci_disable_device(pdev); } @@ -132,6 +332,47 @@ static void txgbe_shutdown(struct pci_dev *pdev) } } +static netdev_tx_t txgbe_xmit_frame(struct sk_buff *skb, + struct net_device *netdev) +{ + return NETDEV_TX_OK; +} + +/** + * txgbe_set_mac - Change the Ethernet Address of the NIC + * @netdev: network interface device structure + * @p: pointer to an address structure + * + * Returns 0 on success, negative on failure + **/ +static int txgbe_set_mac(struct net_device *netdev, void *p) +{ + struct txgbe_adapter *adapter = netdev_priv(netdev); + struct wx_hw *wxhw = &adapter->hw.wxhw; + struct sockaddr *addr = p; + int retval; + + retval = eth_prepare_mac_addr_change(netdev, addr); + if (retval) + return retval; + + txgbe_del_mac_filter(adapter, wxhw->mac.addr, 0); + eth_hw_addr_set(netdev, addr->sa_data); + memcpy(wxhw->mac.addr, addr->sa_data, netdev->addr_len); + + txgbe_mac_set_default_filter(adapter, wxhw->mac.addr); + + return 0; +} + +static const struct net_device_ops txgbe_netdev_ops = { + .ndo_open = txgbe_open, + .ndo_stop = txgbe_close, + .ndo_start_xmit = txgbe_xmit_frame, + .ndo_validate_addr = eth_validate_addr, + .ndo_set_mac_address = txgbe_set_mac, +}; + /** * txgbe_probe - Device Initialization Routine * @pdev: PCI device information struct @@ -201,29 +442,36 @@ static int txgbe_probe(struct pci_dev *pdev, goto err_pci_release_regions; } - strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1); + netdev->netdev_ops = &txgbe_netdev_ops; /* setup the private structure */ err = txgbe_sw_init(adapter); if (err) - goto err_pci_release_regions; + goto err_free_mac_table; /* check if flash load is done after hw power up */ err = wx_check_flash_load(wxhw, TXGBE_SPI_ILDR_STATUS_PERST); if (err) - goto err_pci_release_regions; + goto err_free_mac_table; err = wx_check_flash_load(wxhw, TXGBE_SPI_ILDR_STATUS_PWRRST); if (err) - goto err_pci_release_regions; + goto err_free_mac_table; err = txgbe_reset_hw(hw); if (err) { dev_err(&pdev->dev, "HW Init failed: %d\n", err); - goto err_pci_release_regions; + goto err_free_mac_table; } netdev->features |= NETIF_F_HIGHDMA; + eth_hw_addr_set(netdev, wxhw->mac.perm_addr); + txgbe_mac_set_default_filter(adapter, wxhw->mac.perm_addr); + + err = register_netdev(netdev); + if (err) + goto err_free_mac_table; + pci_set_drvdata(pdev, adapter); /* calculate the expected PCIe bandwidth required for optimal @@ -240,8 +488,12 @@ static int txgbe_probe(struct pci_dev *pdev, else dev_warn(&pdev->dev, "Failed to enumerate PF devices.\n"); + netif_info(adapter, probe, netdev, "%pM\n", netdev->dev_addr); + return 0; +err_free_mac_table: + kfree(adapter->mac_table); err_pci_release_regions: pci_disable_pcie_error_reporting(pdev); pci_release_selected_regions(pdev, @@ -262,9 +514,17 @@ err_pci_disable_dev: **/ static void txgbe_remove(struct pci_dev *pdev) { + struct txgbe_adapter *adapter = pci_get_drvdata(pdev); + struct net_device *netdev; + + netdev = adapter->netdev; + unregister_netdev(netdev); + pci_release_selected_regions(pdev, pci_select_bars(pdev, IORESOURCE_MEM)); + kfree(adapter->mac_table); + pci_disable_pcie_error_reporting(pdev); pci_disable_device(pdev); |