On Tue, Oct 15, 2013 at 10:01:30PM -0400, Vlad Yasevich wrote:
> From: Fan Du <fan.du@xxxxxxxxxxxxx>
>
> igb/ixgbe have hardware sctp checksum support, when this feature is enabled
> and also IPsec is armed to protect sctp traffic, ugly things happened as
> xfrm_output checks CHECKSUM_PARTIAL to do checksum operation(sum every thing
> up and pack the 16bits result in the checksum field). The result is fail
> establishment of sctp communication.
>
> Cc: Neil Horman <nhorman@xxxxxxxxxxxxx>
> Cc: Steffen Klassert <steffen.klassert@xxxxxxxxxxx>
> Signed-off-by: Fan Du <fan.du@xxxxxxxxxxxxx>
> Signed-off-by: Vlad Yasevich <vyasevich@xxxxxxxxx>
> ---
> net/sctp/output.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/net/sctp/output.c b/net/sctp/output.c
> index 0ac3a65..d35b54c 100644
> --- a/net/sctp/output.c
> +++ b/net/sctp/output.c
> @@ -536,7 +536,8 @@ int sctp_packet_transmit(struct sctp_packet *packet)
> * by CRC32-C as described in <draft-ietf-tsvwg-sctpcsum-02.txt>.
> */
> if (!sctp_checksum_disable) {
> - if (!(dst->dev->features & NETIF_F_SCTP_CSUM)) {
> + if (!(dst->dev->features & NETIF_F_SCTP_CSUM) ||
> + (dst_xfrm(dst) != NULL)) {
> __u32 crc32 = sctp_start_cksum((__u8 *)sh, cksum_buf_len);
>
> /* 3) Put the resultant value into the checksum field in the
> --
> 1.8.3.1
>
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>
Acked-by: Neil Horman <nhorman@xxxxxxxxxxxxx>
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