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| author | David S. Miller <davem@davemloft.net> | 2014-08-23 04:24:49 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-08-25 10:02:45 +0400 |
| commit | c1ebf46c1f72fe542853fc00f059a7d15259379d (patch) | |
| tree | cb9e753c7234a1566c3f3742be3793c00cadbcc2 | |
| parent | 4798248e4e023170e937a65a1d30fcc52496dd42 (diff) | |
| download | linux-c1ebf46c1f72fe542853fc00f059a7d15259379d.tar.xz | |
igb: Support netdev_ops->ndo_xmit_flush()
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb_main.c | 35 |
1 files changed, 24 insertions, 11 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index cb14bbdfb056..b9c020a05fb8 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -136,6 +136,7 @@ static void igb_update_phy_info(unsigned long); static void igb_watchdog(unsigned long); static void igb_watchdog_task(struct work_struct *); static netdev_tx_t igb_xmit_frame(struct sk_buff *skb, struct net_device *); +static void igb_xmit_flush(struct net_device *netdev, u16 queue); static struct rtnl_link_stats64 *igb_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats); static int igb_change_mtu(struct net_device *, int); @@ -2075,6 +2076,7 @@ static const struct net_device_ops igb_netdev_ops = { .ndo_open = igb_open, .ndo_stop = igb_close, .ndo_start_xmit = igb_xmit_frame, + .ndo_xmit_flush = igb_xmit_flush, .ndo_get_stats64 = igb_get_stats64, .ndo_set_rx_mode = igb_set_rx_mode, .ndo_set_mac_address = igb_set_mac, @@ -4915,13 +4917,6 @@ static void igb_tx_map(struct igb_ring *tx_ring, tx_ring->next_to_use = i; - writel(i, tx_ring->tail); - - /* we need this if more than one processor can write to our tail - * at a time, it synchronizes IO on IA64/Altix systems - */ - mmiowb(); - return; dma_error: @@ -5057,17 +5052,20 @@ out_drop: return NETDEV_TX_OK; } -static inline struct igb_ring *igb_tx_queue_mapping(struct igb_adapter *adapter, - struct sk_buff *skb) +static struct igb_ring *__igb_tx_queue_mapping(struct igb_adapter *adapter, unsigned int r_idx) { - unsigned int r_idx = skb->queue_mapping; - if (r_idx >= adapter->num_tx_queues) r_idx = r_idx % adapter->num_tx_queues; return adapter->tx_ring[r_idx]; } +static inline struct igb_ring *igb_tx_queue_mapping(struct igb_adapter *adapter, + struct sk_buff *skb) +{ + return __igb_tx_queue_mapping(adapter, skb->queue_mapping); +} + static netdev_tx_t igb_xmit_frame(struct sk_buff *skb, struct net_device *netdev) { @@ -5096,6 +5094,21 @@ static netdev_tx_t igb_xmit_frame(struct sk_buff *skb, return igb_xmit_frame_ring(skb, igb_tx_queue_mapping(adapter, skb)); } +static void igb_xmit_flush(struct net_device *netdev, u16 queue) +{ + struct igb_adapter *adapter = netdev_priv(netdev); + struct igb_ring *tx_ring; + + tx_ring = __igb_tx_queue_mapping(adapter, queue); + + writel(tx_ring->next_to_use, tx_ring->tail); + + /* we need this if more than one processor can write to our tail + * at a time, it synchronizes IO on IA64/Altix systems + */ + mmiowb(); +} + /** * igb_tx_timeout - Respond to a Tx Hang * @netdev: network interface device structure |