Displaying 6 results from an estimated 6 matches for "virtnet_skb_needs_intr".
2014 Oct 11
2
[PATCH net-next RFC 3/3] virtio-net: conditionally enable tx interrupt
...return virtqueue_add_outbuf(sq->vq, sq->sg, num_sg, skb, GFP_ATOMIC);
+ if (urgent)
+ return virtqueue_add_outbuf_urgent(sq->vq, sq->sg, num_sg,
+ skb, GFP_ATOMIC);
+ else
+ return virtqueue_add_outbuf(sq->vq, sq->sg, num_sg, skb,
+ GFP_ATOMIC);
+}
+
+static bool virtnet_skb_needs_intr(struct sk_buff *skb)
+{
+ union {
+ unsigned char *network;
+ struct iphdr *ipv4;
+ struct ipv6hdr *ipv6;
+ } hdr;
+ struct tcphdr *th = tcp_hdr(skb);
+ u16 payload_len;
+
+ hdr.network = skb_network_header(skb);
+
+ /* Only IPv4/IPv6 with TCP is supported */
+ if ((skb->protocol == htons(ETH...
2014 Oct 11
2
[PATCH net-next RFC 3/3] virtio-net: conditionally enable tx interrupt
...return virtqueue_add_outbuf(sq->vq, sq->sg, num_sg, skb, GFP_ATOMIC);
+ if (urgent)
+ return virtqueue_add_outbuf_urgent(sq->vq, sq->sg, num_sg,
+ skb, GFP_ATOMIC);
+ else
+ return virtqueue_add_outbuf(sq->vq, sq->sg, num_sg, skb,
+ GFP_ATOMIC);
+}
+
+static bool virtnet_skb_needs_intr(struct sk_buff *skb)
+{
+ union {
+ unsigned char *network;
+ struct iphdr *ipv4;
+ struct ipv6hdr *ipv6;
+ } hdr;
+ struct tcphdr *th = tcp_hdr(skb);
+ u16 payload_len;
+
+ hdr.network = skb_network_header(skb);
+
+ /* Only IPv4/IPv6 with TCP is supported */
+ if ((skb->protocol == htons(ETH...
2014 Oct 14
0
[PATCH net-next RFC 3/3] virtio-net: conditionally enable tx interrupt
...;sg, num_sg, skb, GFP_ATOMIC);
> + if (urgent)
> + return virtqueue_add_outbuf_urgent(sq->vq, sq->sg, num_sg,
> + skb, GFP_ATOMIC);
> + else
> + return virtqueue_add_outbuf(sq->vq, sq->sg, num_sg, skb,
> + GFP_ATOMIC);
> +}
> +
> +static bool virtnet_skb_needs_intr(struct sk_buff *skb)
> +{
> + union {
> + unsigned char *network;
> + struct iphdr *ipv4;
> + struct ipv6hdr *ipv6;
> + } hdr;
> + struct tcphdr *th = tcp_hdr(skb);
> + u16 payload_len;
> +
> + hdr.network = skb_network_header(skb);
> +
> + /* Only IPv4/IPv6 w...
2014 Oct 11
0
[PATCH net-next RFC 3/3] virtio-net: conditionally enable tx interrupt
...ate skb->len in a totlen var, and perform a single
u64_stats_update_begin(&stats->tx_syncp);
stats->tx_bytes += totlen;
stats->tx_packets += sent;
u64_stats_update_end(&stats->tx_syncp);
after the loop.
> + return sent;
> +}
> +
...
> +
> +static bool virtnet_skb_needs_intr(struct sk_buff *skb)
> +{
> + union {
> + unsigned char *network;
> + struct iphdr *ipv4;
> + struct ipv6hdr *ipv6;
> + } hdr;
> + struct tcphdr *th = tcp_hdr(skb);
> + u16 payload_len;
> +
> + hdr.network = skb_network_header(skb);
> +
> + /* Only IPv4/IPv6 w...
2014 Oct 11
10
[PATCH net-next RFC 0/3] virtio-net: Conditionally enable tx interrupt
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
2014 Oct 11
10
[PATCH net-next RFC 0/3] virtio-net: Conditionally enable tx interrupt
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