search for: netdev_tx_sent_queu

...e skb. * Try to pop one off to free space for it. */ - free_old_xmit_skbs(sq, 1); + free_old_xmit_skbs(txq, sq, 1); /* Try to transmit */ err = xmit_skb(sq, skb); @@ -983,6 +989,12 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev) return NETDEV_TX_OK; } + netdev_tx_sent_queue(txq, bytes); + + /* Kick early so device can process descriptors in parallel with us. */ + if (kick) + virtqueue_kick(sq->vq); + /* Apparently nice girls don't return TX_BUSY; stop the queue * before it gets out of hand. Naturally, this wastes entries. */ if (sq->vq->num_free...

...e skb. * Try to pop one off to free space for it. */ - free_old_xmit_skbs(sq, 1); + free_old_xmit_skbs(txq, sq, 1); /* Try to transmit */ err = xmit_skb(sq, skb); @@ -983,6 +989,12 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev) return NETDEV_TX_OK; } + netdev_tx_sent_queue(txq, bytes); + + /* Kick early so device can process descriptors in parallel with us. */ + if (kick) + virtqueue_kick(sq->vq); + /* Apparently nice girls don't return TX_BUSY; stop the queue * before it gets out of hand. Naturally, this wastes entries. */ if (sq->vq->num_free...

...r; struct netdev_queue *txq = netdev_get_tx_queue(dev, qnum); bool kick = !skb->xmit_more; + unsigned int bytes = skb->len; virtqueue_disable_cb(sq->vq); @@ -976,6 +981,8 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev) return NETDEV_TX_OK; } + netdev_tx_sent_queue(txq, bytes); + /* Apparently nice girls don't return TX_BUSY; stop the queue * before it gets out of hand. Naturally, this wastes entries. */ if (sq->vq->num_free < 2+MAX_SKB_FRAGS) -- MST

...r; struct netdev_queue *txq = netdev_get_tx_queue(dev, qnum); bool kick = !skb->xmit_more; + unsigned int bytes = skb->len; virtqueue_disable_cb(sq->vq); @@ -976,6 +981,8 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev) return NETDEV_TX_OK; } + netdev_tx_sent_queue(txq, bytes); + /* Apparently nice girls don't return TX_BUSY; stop the queue * before it gets out of hand. Naturally, this wastes entries. */ if (sq->vq->num_free < 2+MAX_SKB_FRAGS) -- MST

...gt;xmit_more || netif_xmit_stopped(txq); + unsigned int bytes = skb->len; virtqueue_disable_cb(sq->vq); @@ -967,7 +975,11 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev) dev_kfree_skb_any(skb); return NETDEV_TX_OK; } - virtqueue_kick(sq->vq); + + netdev_tx_sent_queue(txq, bytes); + + if (kick) + virtqueue_kick(sq->vq); /* Apparently nice girls don't return TX_BUSY; stop the queue * before it gets out of hand. Naturally, this wastes entries. */ @@ -975,14 +987,14 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev) ne...

...gt;xmit_more || netif_xmit_stopped(txq); + unsigned int bytes = skb->len; virtqueue_disable_cb(sq->vq); @@ -967,7 +975,11 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev) dev_kfree_skb_any(skb); return NETDEV_TX_OK; } - virtqueue_kick(sq->vq); + + netdev_tx_sent_queue(txq, bytes); + + if (kick) + virtqueue_kick(sq->vq); /* Apparently nice girls don't return TX_BUSY; stop the queue * before it gets out of hand. Naturally, this wastes entries. */ @@ -975,14 +987,14 @@ static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev) ne...

Hello: We used to orphan packets before transmission for virtio-net. This breaks socket accounting and can lead serveral functions won't work, e.g: - Byte Queue Limit depends on tx completion nofication to work. - Packet Generator depends on tx completion nofication for the last transmitted packet to complete. - TCP Small Queue depends on proper accounting of sk_wmem_alloc to work. This

Hello: We used to orphan packets before transmission for virtio-net. This breaks socket accounting and can lead serveral functions won't work, e.g: - Byte Queue Limit depends on tx completion nofication to work. - Packet Generator depends on tx completion nofication for the last transmitted packet to complete. - TCP Small Queue depends on proper accounting of sk_wmem_alloc to work. This

Hello all: We free old transmitted packets in ndo_start_xmit() currently, so any packet must be orphaned also there. This was used to reduce the overhead of tx interrupt to achieve better performance. But this may not work for some protocols such as TCP stream. TCP depends on the value of sk_wmem_alloc to implement various optimization for small packets stream such as TCP small queue and auto

Hello all: We free old transmitted packets in ndo_start_xmit() currently, so any packet must be orphaned also there. This was used to reduce the overhead of tx interrupt to achieve better performance. But this may not work for some protocols such as TCP stream. TCP depends on the value of sk_wmem_alloc to implement various optimization for small packets stream such as TCP small queue and auto