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Thu, 13 Mar 2025 16:03:19 GMT (envelope-from git) Date: Thu, 13 Mar 2025 16:03:19 GMT Message-Id: <202503131603.52DG3JSI048692@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Konstantin Belousov Subject: git: efe9a3996ee3 - main - mlx5: recalculate tcp checksum for ipv6 hw lro coalesced packet List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: X-BeenThere: dev-commits-src-all@freebsd.org Sender: owner-dev-commits-src-all@FreeBSD.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: kib X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: efe9a3996ee319358c51681a6d9da8b4bf608b03 Auto-Submitted: auto-generated The branch main has been updated by kib: URL: https://cgit.FreeBSD.org/src/commit/?id=efe9a3996ee319358c51681a6d9da8b4bf608b03 commit efe9a3996ee319358c51681a6d9da8b4bf608b03 Author: Konstantin Belousov AuthorDate: 2025-02-14 11:17:20 +0000 Commit: Konstantin Belousov CommitDate: 2025-03-13 16:00:27 +0000 mlx5: recalculate tcp checksum for ipv6 hw lro coalesced packet Reviewed by: Ariel Ehrenberg , Slava Shwartsman Sponsored by: NVidia networking MFC after: 1 week --- 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 f30cdeae199f..77e6a6b77c58 100644 --- a/sys/dev/mlx5/mlx5_en/mlx5_en_rx.c +++ b/sys/dev/mlx5/mlx5_en/mlx5_en_rx.c @@ -250,6 +250,15 @@ 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; } }