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Message-ID: <20230214134137.225999-3-gavinl@nvidia.com>
Date: Tue, 14 Feb 2023 15:41:36 +0200
From: Gavin Li <gavinl@...dia.com>
To: <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
<pabeni@...hat.com>, <roopa@...dia.com>, <nikolay@...dia.com>,
<eng.alaamohamedsoliman.am@...il.com>, <bigeasy@...utronix.de>
CC: <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
Roi Dayan <roid@...dia.com>, Maor Dickman <maord@...dia.com>,
Saeed Mahameed <saeedm@...dia.com>
Subject: [PATCH net-next v1 2/3] net/mlx5e: Add helper for encap_info_equal for tunnels with options
For tunnels with options, eg, geneve and vxlan with gbp, they share the
same way to compare the headers and options. Extract the code as a common
function for them
Change-Id: I3ea697293c8d5d66c0c20080dbde88f60bcbd62f
Signed-off-by: Gavin Li <gavinl@...dia.com>
Reviewed-by: Roi Dayan <roid@...dia.com>
Reviewed-by: Maor Dickman <maord@...dia.com>
Acked-by: Saeed Mahameed <saeedm@...dia.com>
---
.../ethernet/mellanox/mlx5/core/en/tc_tun.h | 3 ++
.../mellanox/mlx5/core/en/tc_tun_encap.c | 29 +++++++++++++++++++
.../mellanox/mlx5/core/en/tc_tun_geneve.c | 24 +--------------
3 files changed, 33 insertions(+), 23 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.h b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.h
index b38f693bbb52..92065568bb19 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun.h
@@ -115,6 +115,9 @@ int mlx5e_tc_tun_parse_udp_ports(struct mlx5e_priv *priv,
bool mlx5e_tc_tun_encap_info_equal_generic(struct mlx5e_encap_key *a,
struct mlx5e_encap_key *b);
+bool mlx5e_tc_tun_encap_info_equal_options(struct mlx5e_encap_key *a,
+ struct mlx5e_encap_key *b,
+ __be16 tun_flags);
#endif /* CONFIG_MLX5_ESWITCH */
#endif //__MLX5_EN_TC_TUNNEL_H__
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_encap.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_encap.c
index 780224fd67a1..4df9d27a63ad 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_encap.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_encap.c
@@ -571,6 +571,35 @@ bool mlx5e_tc_tun_encap_info_equal_generic(struct mlx5e_encap_key *a,
a->tc_tunnel->tunnel_type == b->tc_tunnel->tunnel_type;
}
+bool mlx5e_tc_tun_encap_info_equal_options(struct mlx5e_encap_key *a,
+ struct mlx5e_encap_key *b,
+ __be16 tun_flags)
+{
+ struct ip_tunnel_info *a_info;
+ struct ip_tunnel_info *b_info;
+ bool a_has_opts, b_has_opts;
+
+ if (!mlx5e_tc_tun_encap_info_equal_generic(a, b))
+ return false;
+
+ a_has_opts = !!(a->ip_tun_key->tun_flags & tun_flags);
+ b_has_opts = !!(b->ip_tun_key->tun_flags & tun_flags);
+
+ /* keys are equal when both don't have any options attached */
+ if (!a_has_opts && !b_has_opts)
+ return true;
+
+ if (a_has_opts != b_has_opts)
+ return false;
+
+ /* options stored in memory next to ip_tunnel_info struct */
+ a_info = container_of(a->ip_tun_key, struct ip_tunnel_info, key);
+ b_info = container_of(b->ip_tun_key, struct ip_tunnel_info, key);
+
+ return a_info->options_len == b_info->options_len &&
+ memcmp(a_info + 1, b_info + 1, a_info->options_len) == 0;
+}
+
static int cmp_decap_info(struct mlx5e_decap_key *a,
struct mlx5e_decap_key *b)
{
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_geneve.c b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_geneve.c
index 054d80c4e65c..2bcd10b6d653 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_geneve.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en/tc_tun_geneve.c
@@ -337,29 +337,7 @@ static int mlx5e_tc_tun_parse_geneve(struct mlx5e_priv *priv,
static bool mlx5e_tc_tun_encap_info_equal_geneve(struct mlx5e_encap_key *a,
struct mlx5e_encap_key *b)
{
- struct ip_tunnel_info *a_info;
- struct ip_tunnel_info *b_info;
- bool a_has_opts, b_has_opts;
-
- if (!mlx5e_tc_tun_encap_info_equal_generic(a, b))
- return false;
-
- a_has_opts = !!(a->ip_tun_key->tun_flags & TUNNEL_GENEVE_OPT);
- b_has_opts = !!(b->ip_tun_key->tun_flags & TUNNEL_GENEVE_OPT);
-
- /* keys are equal when both don't have any options attached */
- if (!a_has_opts && !b_has_opts)
- return true;
-
- if (a_has_opts != b_has_opts)
- return false;
-
- /* geneve options stored in memory next to ip_tunnel_info struct */
- a_info = container_of(a->ip_tun_key, struct ip_tunnel_info, key);
- b_info = container_of(b->ip_tun_key, struct ip_tunnel_info, key);
-
- return a_info->options_len == b_info->options_len &&
- memcmp(a_info + 1, b_info + 1, a_info->options_len) == 0;
+ return mlx5e_tc_tun_encap_info_equal_options(a, b, TUNNEL_GENEVE_OPT);
}
struct mlx5e_tc_tunnel geneve_tunnel = {
--
2.31.1
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