diff options
| author |   Chris Leech <christopher.leech@intel.com> | 2006-05-23 18:05:53 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@sunset.davemloft.net> | 2006-06-17 21:25:56 -0700 |
| commit | 1a2449a87bb7606113b1aa1a9d3c3e78ef189a1c (patch) | |
| tree | 86e833a8694f201de138697646e7e8469e9c8ef6 /net/ipv6/tcp_ipv6.c | |
| parent | [I/OAT]: Add a sysctl for tuning the I/OAT offloaded I/O threshold (diff) | |
| download | linux-dev-1a2449a87bb7606113b1aa1a9d3c3e78ef189a1c.tar.xz linux-dev-1a2449a87bb7606113b1aa1a9d3c3e78ef189a1c.zip | |
[I/OAT]: TCP recv offload to I/OAT
Locks down user pages and sets up for DMA in tcp_recvmsg, then calls
dma_async_try_early_copy in tcp_v4_do_rcv
Signed-off-by: Chris Leech <christopher.leech@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | net/ipv6/tcp_ipv6.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 301eee726b0f..a50eb306e9e2 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -1218,8 +1218,16 @@ process: bh_lock_sock(sk); ret = 0; if (!sock_owned_by_user(sk)) { - if (!tcp_prequeue(sk, skb)) - ret = tcp_v6_do_rcv(sk, skb); +#ifdef CONFIG_NET_DMA + struct tcp_sock *tp = tcp_sk(sk); + if (tp->ucopy.dma_chan) + ret = tcp_v6_do_rcv(sk, skb); + else +#endif + { + if (!tcp_prequeue(sk, skb)) + ret = tcp_v6_do_rcv(sk, skb); + } } else sk_add_backlog(sk, skb); bh_unlock_sock(sk); |