Date: Thu, 20 Mar 2025 03:14:07 GMT From: Konstantin Belousov <kib@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 7b64ccdf9605 - stable/14 - mlx5: recalculate tcp checksum for ipv6 hw lro coalesced packet Message-ID: <202503200314.52K3E7YC086331@gitrepo.freebsd.org>
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The branch stable/14 has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=7b64ccdf9605d78b2f7c84cccba50833bb0e5a53 commit 7b64ccdf9605d78b2f7c84cccba50833bb0e5a53 Author: Konstantin Belousov <kib@FreeBSD.org> AuthorDate: 2025-02-14 11:17:20 +0000 Commit: Konstantin Belousov <kib@FreeBSD.org> CommitDate: 2025-03-20 03:13:37 +0000 mlx5: recalculate tcp checksum for ipv6 hw lro coalesced packet (cherry picked from commit efe9a3996ee319358c51681a6d9da8b4bf608b03) --- sys/dev/mlx5/mlx5_en/mlx5_en_rx.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/sys/dev/mlx5/mlx5_en/mlx5_en_rx.c b/sys/dev/mlx5/mlx5_en/mlx5_en_rx.c index 266e8e804259..0a1cd2bc4aee 100644 --- a/sys/dev/mlx5/mlx5_en/mlx5_en_rx.c +++ b/sys/dev/mlx5/mlx5_en/mlx5_en_rx.c @@ -246,6 +246,15 @@ mlx5e_lro_update_hdr(struct mbuf *mb, struct mlx5_cqe64 *cqe) ip6->ip6_hlim = cqe->lro_min_ttl; ip6->ip6_plen = cpu_to_be16(tot_len - sizeof(struct ip6_hdr)); + + /* TCP checksum */ + th->th_sum = 0; + tcp_csum = ~in6_cksum_partial_l2(mb, IPPROTO_TCP, + sizeof(struct ether_header), + sizeof(struct ether_header) + sizeof(struct ip6_hdr), + tot_len - sizeof(struct ip6_hdr), th->th_off * 4) & 0xffff; + tcp_csum = csum_reduce(tcp_csum + cqe->check_sum); + th->th_sum = ~tcp_csum & 0xffff; } }
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