diff options
| -rw-r--r-- | drivers/net/ethernet/intel/fm10k/fm10k.h | 4 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/fm10k/fm10k_netdev.c | 68 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/fm10k/fm10k_pci.c | 45 |
3 files changed, 117 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k.h b/drivers/net/ethernet/intel/fm10k/fm10k.h index 1172cba59192..bd47f28f5b05 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k.h +++ b/drivers/net/ethernet/intel/fm10k/fm10k.h @@ -130,9 +130,13 @@ extern const char fm10k_driver_version[]; /* PCI */ int fm10k_register_pci_driver(void); void fm10k_unregister_pci_driver(void); +void fm10k_up(struct fm10k_intfc *interface); +void fm10k_down(struct fm10k_intfc *interface); /* Netdev */ struct net_device *fm10k_alloc_netdev(void); void fm10k_restore_rx_state(struct fm10k_intfc *); void fm10k_reset_rx_state(struct fm10k_intfc *); +int fm10k_open(struct net_device *netdev); +int fm10k_close(struct net_device *netdev); #endif /* _FM10K_H_ */ diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c index cf7b4f32a996..ca84898c208e 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_netdev.c @@ -20,6 +20,72 @@ #include "fm10k.h" +/** + * fm10k_request_glort_range - Request GLORTs for use in configuring rules + * @interface: board private structure + * + * This function allocates a range of glorts for this inteface to use. + **/ +static void fm10k_request_glort_range(struct fm10k_intfc *interface) +{ + struct fm10k_hw *hw = &interface->hw; + u16 mask = (~hw->mac.dglort_map) >> FM10K_DGLORTMAP_MASK_SHIFT; + + /* establish GLORT base */ + interface->glort = hw->mac.dglort_map & FM10K_DGLORTMAP_NONE; + interface->glort_count = 0; + + /* nothing we can do until mask is allocated */ + if (hw->mac.dglort_map == FM10K_DGLORTMAP_NONE) + return; + + interface->glort_count = mask + 1; +} + +/** + * fm10k_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). At this point all resources needed + * for transmit and receive operations are allocated, the interrupt + * handler is registered with the OS, the watchdog timer is started, + * and the stack is notified that the interface is ready. + **/ +int fm10k_open(struct net_device *netdev) +{ + struct fm10k_intfc *interface = netdev_priv(netdev); + + /* setup GLORT assignment for this port */ + fm10k_request_glort_range(interface); + + fm10k_up(interface); + + return 0; +} + +/** + * fm10k_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. + **/ +int fm10k_close(struct net_device *netdev) +{ + struct fm10k_intfc *interface = netdev_priv(netdev); + + fm10k_down(interface); + + return 0; +} + static netdev_tx_t fm10k_xmit_frame(struct sk_buff *skb, struct net_device *dev) { dev_kfree_skb_any(skb); @@ -398,6 +464,8 @@ void fm10k_reset_rx_state(struct fm10k_intfc *interface) } static const struct net_device_ops fm10k_netdev_ops = { + .ndo_open = fm10k_open, + .ndo_stop = fm10k_close, .ndo_validate_addr = eth_validate_addr, .ndo_start_xmit = fm10k_xmit_frame, .ndo_set_mac_address = fm10k_set_mac, diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c index 5fcbd1d621b7..b6d5e722bc5e 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_pci.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_pci.c @@ -87,6 +87,51 @@ static int fm10k_hw_ready(struct fm10k_intfc *interface) return FM10K_REMOVED(hw->hw_addr) ? -ENODEV : 0; } +void fm10k_up(struct fm10k_intfc *interface) +{ + struct fm10k_hw *hw = &interface->hw; + + /* Enable Tx/Rx DMA */ + hw->mac.ops.start_hw(hw); + + /* configure interrupts */ + hw->mac.ops.update_int_moderator(hw); + + /* clear down bit to indicate we are ready to go */ + clear_bit(__FM10K_DOWN, &interface->state); + + /* re-establish Rx filters */ + fm10k_restore_rx_state(interface); + + /* enable transmits */ + netif_tx_start_all_queues(interface->netdev); +} + +void fm10k_down(struct fm10k_intfc *interface) +{ + struct net_device *netdev = interface->netdev; + struct fm10k_hw *hw = &interface->hw; + + /* signal that we are down to the interrupt handler and service task */ + set_bit(__FM10K_DOWN, &interface->state); + + /* call carrier off first to avoid false dev_watchdog timeouts */ + netif_carrier_off(netdev); + + /* disable transmits */ + netif_tx_stop_all_queues(netdev); + netif_tx_disable(netdev); + + /* reset Rx filters */ + fm10k_reset_rx_state(interface); + + /* allow 10ms for device to quiesce */ + usleep_range(10000, 20000); + + /* Disable DMA engine for Tx/Rx */ + hw->mac.ops.stop_hw(hw); +} + /** * fm10k_sw_init - Initialize general software structures * @interface: host interface private structure to initialize |