diff options
| author | Dave Jiang <dave.jiang@intel.com> | 2012-04-04 16:10:46 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2012-04-05 15:27:12 -0700 |
| commit | a2bd1140a264b561e38d99e656cd843c2d840e86 (patch) | |
| tree | 9c9f19dde5c0213a52de0e77c16059062cc6c8a1 /net/ipv4/tcp.c | |
| parent | f26df1a1a9452573af7b6cea9a4723593e838568 (diff) | |
| download | lwn-a2bd1140a264b561e38d99e656cd843c2d840e86.tar.gz lwn-a2bd1140a264b561e38d99e656cd843c2d840e86.zip | |
netdma: adding alignment check for NETDMA ops
This is the fallout from adding memcpy alignment workaround for certain
IOATDMA hardware. NetDMA will only use DMA engine that can handle byte align
ops.
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'net/ipv4/tcp.c')
| -rw-r--r-- | net/ipv4/tcp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 22ef5f9fd2ff..8712c5d4f91d 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -1450,7 +1450,7 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg, if ((available < target) && (len > sysctl_tcp_dma_copybreak) && !(flags & MSG_PEEK) && !sysctl_tcp_low_latency && - dma_find_channel(DMA_MEMCPY)) { + net_dma_find_channel()) { preempt_enable_no_resched(); tp->ucopy.pinned_list = dma_pin_iovec_pages(msg->msg_iov, len); @@ -1665,7 +1665,7 @@ do_prequeue: if (!(flags & MSG_TRUNC)) { #ifdef CONFIG_NET_DMA if (!tp->ucopy.dma_chan && tp->ucopy.pinned_list) - tp->ucopy.dma_chan = dma_find_channel(DMA_MEMCPY); + tp->ucopy.dma_chan = net_dma_find_channel(); if (tp->ucopy.dma_chan) { tp->ucopy.dma_cookie = dma_skb_copy_datagram_iovec( |