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net/mlx5e: don't set CHECKSUM_COMPLETE on SCTP packets

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[ Upstream commit fe1dc069990c1f290ef6b99adb46332c03258f38 ]

CHECKSUM_COMPLETE is not applicable to SCTP protocol.
Setting it for SCTP packets leads to CRC32c validation failure.

Fixes: bbceefce9adf ("net/mlx5e: Support RX CHECKSUM_COMPLETE")
Signed-off-by: Alaa Hleihel <alaa@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Alaa Hleihel 2019-09-23 12:40:06 +00:00 committed by Greg Kroah-Hartman
parent 6debda9741
commit 44da02576b
1 changed files with 11 additions and 0 deletions
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11
drivers/net/ethernet/mellanox/mlx5/core/en_rx.c
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@ -725,6 +725,14 @@ static u32 mlx5e_get_fcs(const struct sk_buff *skb)
return __get_unaligned_cpu32(fcs_bytes);
}
static u8 get_ip_proto(struct sk_buff *skb, __be16 proto)
{
void *ip_p = skb->data + sizeof(struct ethhdr);
return (proto == htons(ETH_P_IP)) ? ((struct iphdr *)ip_p)->protocol :
((struct ipv6hdr *)ip_p)->nexthdr;
}
#define short_frame(size) ((size) <= ETH_ZLEN + ETH_FCS_LEN)
static inline void mlx5e_handle_csum(struct net_device *netdev,
@ -758,6 +766,9 @@ static inline void mlx5e_handle_csum(struct net_device *netdev,
goto csum_unnecessary;
if (likely(is_last_ethertype_ip(skb, &network_depth, &proto))) {
if (unlikely(get_ip_proto(skb, proto) == IPPROTO_SCTP))
goto csum_unnecessary;
skb->ip_summed = CHECKSUM_COMPLETE;
skb->csum = csum_unfold((__force __sum16)cqe->check_sum);
if (network_depth > ETH_HLEN)