linux-kernel - [PATCH v2 net 3/4] mlx5: do not use RT

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Date:   Tue, 2 Aug 2022 14:09:34 +0200
From:   Matthias May <matthias.may@...termo.com>
To:     <netdev@...r.kernel.org>
CC:     <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>, <roopa@...dia.com>,
        <eng.alaamohamedsoliman.am@...il.com>, <bigeasy@...utronix.de>,
        <saeedm@...dia.com>, <leon@...nel.org>, <roid@...dia.com>,
        <maord@...dia.com>, <lariel@...dia.com>, <vladbu@...dia.com>,
        <cmi@...dia.com>, <gnault@...hat.com>, <yoshfuji@...ux-ipv6.org>,
        <dsahern@...nel.org>, <linux-kernel@...r.kernel.org>,
        <bpf@...r.kernel.org>, <linux-rdma@...r.kernel.org>,
        <nicolas.dichtel@...nd.com>, <eyal.birger@...il.com>,
        <jesse@...ira.com>, <linville@...driver.com>,
        <daniel@...earbox.net>, <hadarh@...lanox.com>,
        <ogerlitz@...lanox.com>, <willemb@...gle.com>,
        <martin.varghese@...ia.com>,
        Matthias May <matthias.may@...termo.com>
Subject: [PATCH v2 net 3/4] mlx5: do not use RT_TOS for IPv6 flowlabel

According to Guillaume Nault RT_TOS should never be used for IPv6.

Fixes: ce99f6b97fcd ("net/mlx5e: Support SRIOV TC encapsulation offloads for IPv6 tunnels")
Signed-off-by: Matthias May <matthias.may@...termo.com>
---
v1 -> v2:
 - Fix spacing of "Fixes" tag.
 - Add missing CCs
---
 drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c
index d87bbb0be7c8..e6f64d890fb3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.c
@@ -506,7 +506,7 @@ int mlx5e_tc_tun_create_header_ipv6(struct mlx5e_priv *priv,
 	int err;
 
 	attr.ttl = tun_key->ttl;
-	attr.fl.fl6.flowlabel = ip6_make_flowinfo(RT_TOS(tun_key->tos), tun_key->label);
+	attr.fl.fl6.flowlabel = ip6_make_flowinfo(tun_key->tos, tun_key->label);
 	attr.fl.fl6.daddr = tun_key->u.ipv6.dst;
 	attr.fl.fl6.saddr = tun_key->u.ipv6.src;
 
@@ -620,7 +620,7 @@ int mlx5e_tc_tun_update_header_ipv6(struct mlx5e_priv *priv,
 
 	attr.ttl = tun_key->ttl;
 
-	attr.fl.fl6.flowlabel = ip6_make_flowinfo(RT_TOS(tun_key->tos), tun_key->label);
+	attr.fl.fl6.flowlabel = ip6_make_flowinfo(tun_key->tos, tun_key->label);
 	attr.fl.fl6.daddr = tun_key->u.ipv6.dst;
 	attr.fl.fl6.saddr = tun_key->u.ipv6.src;
 
-- 
2.35.1