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net: ixgbe: use skb_csum_is_sctp instead of protocol check
Using skb_csum_is_sctp is a easier way to validate it's a SCTP CRC checksum offload packet, and yet it also makes ixgbe support SCTP CRC checksum offload for UDP and GRE encapped packets, just as it does in igb driver. Signed-off-by: Xin Long <lucien.xin@gmail.com> Reviewed-by: Alexander Duyck <alexanderduyck@fb.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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609d29a9d2
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1 changed files with 1 additions and 13 deletions
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@ -8039,15 +8039,6 @@ static int ixgbe_tso(struct ixgbe_ring *tx_ring,
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return 1;
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}
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static inline bool ixgbe_ipv6_csum_is_sctp(struct sk_buff *skb)
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{
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unsigned int offset = 0;
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ipv6_find_hdr(skb, &offset, IPPROTO_SCTP, NULL, NULL);
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return offset == skb_checksum_start_offset(skb);
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}
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static void ixgbe_tx_csum(struct ixgbe_ring *tx_ring,
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struct ixgbe_tx_buffer *first,
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struct ixgbe_ipsec_tx_data *itd)
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@ -8073,10 +8064,7 @@ static void ixgbe_tx_csum(struct ixgbe_ring *tx_ring,
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break;
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case offsetof(struct sctphdr, checksum):
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/* validate that this is actually an SCTP request */
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if (((first->protocol == htons(ETH_P_IP)) &&
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(ip_hdr(skb)->protocol == IPPROTO_SCTP)) ||
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((first->protocol == htons(ETH_P_IPV6)) &&
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ixgbe_ipv6_csum_is_sctp(skb))) {
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if (skb_csum_is_sctp(skb)) {
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type_tucmd = IXGBE_ADVTXD_TUCMD_L4T_SCTP;
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break;
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}
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