From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7253C1C5D46; Mon, 23 Jun 2025 21:33:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750714382; cv=none; b=KVTVbSSE78ELTfOgO8x4SABf0LPtNPhl5dDRs64gvI/UtwGiE/P1ITXY4CANw9dRVrruXereuRTEc4f/gyjZQWUVmdRtpvYe/M5VmRY9HS6khp5F/rgdGFHFwEFVKFB9d9oyHt1yiOXrNXV+w1j8P+cwb2PdSb+VHw5H59piLTs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750714382; c=relaxed/simple; bh=4ZVryBueCgyqIErQP+8hTO29/IA7aO9OHUFyB6WGwmE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=I2aeSlpjwc8iuU05hxGE7+vcOsWXWuzLLfVC3c8+vIKWx07mqQJbSbmZl9tZ8judC59DjzuQZQgl4oB7DHdU97u2IePOgaSdMyO2+eNvQRdZkzHwU0FrGULFMqp6/y1G44nAMw66ylQjeAeCrVU2/v6p6ZpudnSqpU0ZtSUpUno= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=yEGev9V6; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="yEGev9V6" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 09646C4CEEA; Mon, 23 Jun 2025 21:33:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1750714382; bh=4ZVryBueCgyqIErQP+8hTO29/IA7aO9OHUFyB6WGwmE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=yEGev9V6GMUNzQHEME6I5m1TQPy0U6Xcifc0E4eKY/TlS4bHVFYqQgoN8+LSVLIGn W50j+r60pTr7fwEsiwUf9QNiDW5en/VbQp3Jc5zLUJAsbkpnbUJJS9/2jBWnQ11jiV Q8P64bZHrxK78zfVnVbK/ehZhSDHtUr+mPnlyapU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Vlad Dogaru , Yevgeny Kliteynik , Mark Bloch , Jakub Kicinski , Sasha Levin Subject: [PATCH 6.15 387/592] net/mlx5: HWS, Fix IP version decision Date: Mon, 23 Jun 2025 15:05:45 +0200 Message-ID: <20250623130709.646898390@linuxfoundation.org> X-Mailer: git-send-email 2.50.0 In-Reply-To: <20250623130700.210182694@linuxfoundation.org> References: <20250623130700.210182694@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Vlad Dogaru [ Upstream commit 5f2f8d8b6800e4fc760c2eccec9b2bd2cacf80cf ] Unify the check for IP version when creating a definer. A given matcher is deemed to match on IPv6 if any of the higher order (>31) bits of source or destination address mask are set. A single packet cannot mix IP versions between source and destination addresses, so it makes no sense that they would be decided on independently. Signed-off-by: Vlad Dogaru Reviewed-by: Yevgeny Kliteynik Signed-off-by: Mark Bloch Link: https://patch.msgid.link/20250422092540.182091-2-mbloch@nvidia.com Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- .../mellanox/mlx5/core/steering/hws/definer.c | 38 ++++++++----------- 1 file changed, 16 insertions(+), 22 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/definer.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/definer.c index 293459458cc5f..7dc6d8cd744e1 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/definer.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/hws/definer.c @@ -509,9 +509,9 @@ static int hws_definer_conv_outer(struct mlx5hws_definer_conv_data *cd, u32 *match_param) { - bool is_s_ipv6, is_d_ipv6, smac_set, dmac_set; struct mlx5hws_definer_fc *fc = cd->fc; struct mlx5hws_definer_fc *curr_fc; + bool is_ipv6, smac_set, dmac_set; u32 *s_ipv6, *d_ipv6; if (HWS_IS_FLD_SET_SZ(match_param, outer_headers.l4_type, 0x2) || @@ -573,10 +573,10 @@ hws_definer_conv_outer(struct mlx5hws_definer_conv_data *cd, outer_headers.dst_ipv4_dst_ipv6.ipv6_layout); /* Assume IPv6 is used if ipv6 bits are set */ - is_s_ipv6 = s_ipv6[0] || s_ipv6[1] || s_ipv6[2]; - is_d_ipv6 = d_ipv6[0] || d_ipv6[1] || d_ipv6[2]; + is_ipv6 = s_ipv6[0] || s_ipv6[1] || s_ipv6[2] || + d_ipv6[0] || d_ipv6[1] || d_ipv6[2]; - if (is_s_ipv6) { + if (is_ipv6) { /* Handle IPv6 source address */ HWS_SET_HDR(fc, match_param, IPV6_SRC_127_96_O, outer_headers.src_ipv4_src_ipv6.ipv6_simple_layout.ipv6_127_96, @@ -590,13 +590,6 @@ hws_definer_conv_outer(struct mlx5hws_definer_conv_data *cd, HWS_SET_HDR(fc, match_param, IPV6_SRC_31_0_O, outer_headers.src_ipv4_src_ipv6.ipv6_simple_layout.ipv6_31_0, ipv6_src_outer.ipv6_address_31_0); - } else { - /* Handle IPv4 source address */ - HWS_SET_HDR(fc, match_param, IPV4_SRC_O, - outer_headers.src_ipv4_src_ipv6.ipv6_simple_layout.ipv6_31_0, - ipv4_src_dest_outer.source_address); - } - if (is_d_ipv6) { /* Handle IPv6 destination address */ HWS_SET_HDR(fc, match_param, IPV6_DST_127_96_O, outer_headers.dst_ipv4_dst_ipv6.ipv6_simple_layout.ipv6_127_96, @@ -611,6 +604,10 @@ hws_definer_conv_outer(struct mlx5hws_definer_conv_data *cd, outer_headers.dst_ipv4_dst_ipv6.ipv6_simple_layout.ipv6_31_0, ipv6_dst_outer.ipv6_address_31_0); } else { + /* Handle IPv4 source address */ + HWS_SET_HDR(fc, match_param, IPV4_SRC_O, + outer_headers.src_ipv4_src_ipv6.ipv6_simple_layout.ipv6_31_0, + ipv4_src_dest_outer.source_address); /* Handle IPv4 destination address */ HWS_SET_HDR(fc, match_param, IPV4_DST_O, outer_headers.dst_ipv4_dst_ipv6.ipv6_simple_layout.ipv6_31_0, @@ -668,9 +665,9 @@ static int hws_definer_conv_inner(struct mlx5hws_definer_conv_data *cd, u32 *match_param) { - bool is_s_ipv6, is_d_ipv6, smac_set, dmac_set; struct mlx5hws_definer_fc *fc = cd->fc; struct mlx5hws_definer_fc *curr_fc; + bool is_ipv6, smac_set, dmac_set; u32 *s_ipv6, *d_ipv6; if (HWS_IS_FLD_SET_SZ(match_param, inner_headers.l4_type, 0x2) || @@ -731,10 +728,10 @@ hws_definer_conv_inner(struct mlx5hws_definer_conv_data *cd, inner_headers.dst_ipv4_dst_ipv6.ipv6_layout); /* Assume IPv6 is used if ipv6 bits are set */ - is_s_ipv6 = s_ipv6[0] || s_ipv6[1] || s_ipv6[2]; - is_d_ipv6 = d_ipv6[0] || d_ipv6[1] || d_ipv6[2]; + is_ipv6 = s_ipv6[0] || s_ipv6[1] || s_ipv6[2] || + d_ipv6[0] || d_ipv6[1] || d_ipv6[2]; - if (is_s_ipv6) { + if (is_ipv6) { /* Handle IPv6 source address */ HWS_SET_HDR(fc, match_param, IPV6_SRC_127_96_I, inner_headers.src_ipv4_src_ipv6.ipv6_simple_layout.ipv6_127_96, @@ -748,13 +745,6 @@ hws_definer_conv_inner(struct mlx5hws_definer_conv_data *cd, HWS_SET_HDR(fc, match_param, IPV6_SRC_31_0_I, inner_headers.src_ipv4_src_ipv6.ipv6_simple_layout.ipv6_31_0, ipv6_src_inner.ipv6_address_31_0); - } else { - /* Handle IPv4 source address */ - HWS_SET_HDR(fc, match_param, IPV4_SRC_I, - inner_headers.src_ipv4_src_ipv6.ipv6_simple_layout.ipv6_31_0, - ipv4_src_dest_inner.source_address); - } - if (is_d_ipv6) { /* Handle IPv6 destination address */ HWS_SET_HDR(fc, match_param, IPV6_DST_127_96_I, inner_headers.dst_ipv4_dst_ipv6.ipv6_simple_layout.ipv6_127_96, @@ -769,6 +759,10 @@ hws_definer_conv_inner(struct mlx5hws_definer_conv_data *cd, inner_headers.dst_ipv4_dst_ipv6.ipv6_simple_layout.ipv6_31_0, ipv6_dst_inner.ipv6_address_31_0); } else { + /* Handle IPv4 source address */ + HWS_SET_HDR(fc, match_param, IPV4_SRC_I, + inner_headers.src_ipv4_src_ipv6.ipv6_simple_layout.ipv6_31_0, + ipv4_src_dest_inner.source_address); /* Handle IPv4 destination address */ HWS_SET_HDR(fc, match_param, IPV4_DST_I, inner_headers.dst_ipv4_dst_ipv6.ipv6_simple_layout.ipv6_31_0, -- 2.39.5