netdev - [PATCH net-next v2 11/13] mlxsw: spectrum_flow: Promote binder-type dispatch to spectrum.c

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Date:   Sat, 11 Jul 2020 00:55:13 +0300
From:   Petr Machata <petrm@...lanox.com>
To:     netdev@...r.kernel.org
Cc:     Pablo Neira Ayuso <pablo@...filter.org>, davem@...emloft.net,
        kuba@...nel.org, jiri@...lanox.com, petrm@...lanox.com,
        mlxsw@...lanox.com, michael.chan@...adcom.com, saeedm@...lanox.com,
        leon@...nel.org, kadlec@...filter.org, fw@...len.de,
        jhs@...atatu.com, xiyou.wangcong@...il.com,
        simon.horman@...ronome.com, Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next v2 11/13] mlxsw: spectrum_flow: Promote binder-type dispatch to spectrum.c

Two RED qevents have been introduced recently. From the point of view of a
driver, qevents are simply blocks with unusual binder types. However they
need to be handled by different logic than ACL-like flows.

Thus rename mlxsw_sp_setup_tc_block() to mlxsw_sp_setup_tc_block_clsact()
and move the binder-type dispatch from there to spectrum.c into a new
function of the original name. The new dispatcher is easier to extend with
new binder types.

Signed-off-by: Petr Machata <petrm@...lanox.com>
Reviewed-by: Jiri Pirko <jiri@...lanox.com>
---
 drivers/net/ethernet/mellanox/mlxsw/spectrum.c     | 13 +++++++++++++
 drivers/net/ethernet/mellanox/mlxsw/spectrum.h     |  5 +++--
 .../net/ethernet/mellanox/mlxsw/spectrum_flow.c    | 14 +++-----------
 3 files changed, 19 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 636dd09cbbbc..2235c4bf330d 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -1329,6 +1329,19 @@ static int mlxsw_sp_port_kill_vid(struct net_device *dev,
 	return 0;
 }
 
+static int mlxsw_sp_setup_tc_block(struct mlxsw_sp_port *mlxsw_sp_port,
+				   struct flow_block_offload *f)
+{
+	switch (f->binder_type) {
+	case FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS:
+		return mlxsw_sp_setup_tc_block_clsact(mlxsw_sp_port, f, true);
+	case FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS:
+		return mlxsw_sp_setup_tc_block_clsact(mlxsw_sp_port, f, false);
+	default:
+		return -EOPNOTSUPP;
+	}
+}
+
 static int mlxsw_sp_setup_tc(struct net_device *dev, enum tc_setup_type type,
 			     void *type_data)
 {
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
index 51047b1aa23a..ee9a19f28b97 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
@@ -767,8 +767,9 @@ mlxsw_sp_flow_block_is_mixed_bound(const struct mlxsw_sp_flow_block *block)
 struct mlxsw_sp_flow_block *mlxsw_sp_flow_block_create(struct mlxsw_sp *mlxsw_sp,
 						       struct net *net);
 void mlxsw_sp_flow_block_destroy(struct mlxsw_sp_flow_block *block);
-int mlxsw_sp_setup_tc_block(struct mlxsw_sp_port *mlxsw_sp_port,
-			    struct flow_block_offload *f);
+int mlxsw_sp_setup_tc_block_clsact(struct mlxsw_sp_port *mlxsw_sp_port,
+				   struct flow_block_offload *f,
+				   bool ingress);
 
 /* spectrum_acl.c */
 struct mlxsw_sp_acl_ruleset;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_flow.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_flow.c
index 421581a85cd6..0456cda33808 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_flow.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_flow.c
@@ -277,18 +277,10 @@ static void mlxsw_sp_setup_tc_block_unbind(struct mlxsw_sp_port *mlxsw_sp_port,
 	}
 }
 
-int mlxsw_sp_setup_tc_block(struct mlxsw_sp_port *mlxsw_sp_port,
-			    struct flow_block_offload *f)
+int mlxsw_sp_setup_tc_block_clsact(struct mlxsw_sp_port *mlxsw_sp_port,
+				   struct flow_block_offload *f,
+				   bool ingress)
 {
-	bool ingress;
-
-	if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_INGRESS)
-		ingress = true;
-	else if (f->binder_type == FLOW_BLOCK_BINDER_TYPE_CLSACT_EGRESS)
-		ingress = false;
-	else
-		return -EOPNOTSUPP;
-
 	f->driver_block_list = &mlxsw_sp_block_cb_list;
 
 	switch (f->command) {
-- 
2.20.1