[PATCH net-next 6/6] net: ixgbevf: use skb_csum_is_sctp instead of protocol check
From: Xin Long <lucien.xin@gmail.com>
Date: 2021-01-16 06:15:29
Also in:
intel-wired-lan, linux-sctp
Subsystem:
intel ethernet drivers, networking drivers, the rest · Maintainers:
Tony Nguyen, Przemek Kitszel, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Using skb_csum_is_sctp is a easier way to validate it's a SCTP CRC checksum offload packet, and yet it also makes ixgbevf 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> --- drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 4061cd7..cd9d79f 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c@@ -3844,15 +3844,6 @@ static int ixgbevf_tso(struct ixgbevf_ring *tx_ring, return 1; } -static inline bool ixgbevf_ipv6_csum_is_sctp(struct sk_buff *skb) -{ - unsigned int offset = 0; - - ipv6_find_hdr(skb, &offset, IPPROTO_SCTP, NULL, NULL); - - return offset == skb_checksum_start_offset(skb); -} - static void ixgbevf_tx_csum(struct ixgbevf_ring *tx_ring, struct ixgbevf_tx_buffer *first, struct ixgbevf_ipsec_tx_data *itd)
@@ -3873,10 +3864,7 @@ static void ixgbevf_tx_csum(struct ixgbevf_ring *tx_ring, break; case offsetof(struct sctphdr, checksum): /* validate that this is actually an SCTP request */ - if (((first->protocol == htons(ETH_P_IP)) && - (ip_hdr(skb)->protocol == IPPROTO_SCTP)) || - ((first->protocol == htons(ETH_P_IPV6)) && - ixgbevf_ipv6_csum_is_sctp(skb))) { + if (skb_csum_is_sctp(skb)) { type_tucmd = IXGBE_ADVTXD_TUCMD_L4T_SCTP; break; }
--
2.1.0