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From 31d317151ad03b5040aa5ee117208ff4b688095b Mon Sep 17 00:00:00 2001
From: Alaa Hleihel <ahleihel@redhat.com>
Date: Sun, 10 May 2020 15:04:00 -0400
Subject: [PATCH 083/312] [netdrv] net/mlx5: E-switch, Offloads shift ACL
 programming during enable/disable vport

Message-id: <20200510150452.10307-36-ahleihel@redhat.com>
Patchwork-id: 306659
Patchwork-instance: patchwork
O-Subject: [RHEL8.3 BZ 1789380 v2 35/87] net/mlx5: E-switch, Offloads shift ACL programming during enable/disable vport
Bugzilla: 1789380
RH-Acked-by: Kamal Heib <kheib@redhat.com>
RH-Acked-by: Jarod Wilson <jarod@redhat.com>
RH-Acked-by: Tony Camuso <tcamuso@redhat.com>
RH-Acked-by: Jonathan Toppins <jtoppins@redhat.com>

Bugzilla: http://bugzilla.redhat.com/1789380
Upstream: v5.5-rc1
Conflicts:
 - drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
   Context diff due to already backported commit
   1e62e222db2e ("net/mlx5: E-Switch, Use vport metadata matching only when mandatory")
   ---> In function esw_create_uplink_offloads_acl_tables, we now call esw_use_vport_metadata
        instead of esw_check_vport_match_metadata_supported.

commit 748da30b376e034ae54b53e7e38e15cfa2bf4dda
Author: Vu Pham <vuhuong@mellanox.com>
Date:   Mon Oct 28 23:35:22 2019 +0000

    net/mlx5: E-switch, Offloads shift ACL programming during enable/disable vport

    Currently legacy mode enables ACL while enabling vport, while offloads
    mode enable ACL when moving to offloads mode.

    Bring consistency to both modes by enabling/disabling ACL when
    enabling/disabling a vport.

    It also eliminates creating ingress ACL table on unused ECPF vport in
    offloads mode.

    Signed-off-by: Vu Pham <vuhuong@mellanox.com>
    Signed-off-by: Parav Pandit <parav@mellanox.com>
    Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

Signed-off-by: Alaa Hleihel <ahleihel@redhat.com>
Signed-off-by: Frantisek Hrbata <fhrbata@redhat.com>
---
 drivers/net/ethernet/mellanox/mlx5/core/eswitch.c  |  6 ++--
 drivers/net/ethernet/mellanox/mlx5/core/eswitch.h  |  7 ++++
 .../ethernet/mellanox/mlx5/core/eswitch_offloads.c | 42 +++++++---------------
 3 files changed, 24 insertions(+), 31 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index 2d094bb7b8a1..91b5ec6c3e13 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -1717,8 +1717,8 @@ static int esw_vport_setup_acl(struct mlx5_eswitch *esw,
 {
 	if (esw->mode == MLX5_ESWITCH_LEGACY)
 		return esw_vport_create_legacy_acl_tables(esw, vport);
-
-	return 0;
+	else
+		return esw_vport_create_offloads_acl_tables(esw, vport);
 }
 
 static void esw_vport_destroy_legacy_acl_tables(struct mlx5_eswitch *esw,
@@ -1742,6 +1742,8 @@ static void esw_vport_cleanup_acl(struct mlx5_eswitch *esw,
 {
 	if (esw->mode == MLX5_ESWITCH_LEGACY)
 		esw_vport_destroy_legacy_acl_tables(esw, vport);
+	else
+		esw_vport_destroy_offloads_acl_tables(esw, vport);
 }
 
 static int esw_enable_vport(struct mlx5_eswitch *esw, struct mlx5_vport *vport,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
index d29df0c302f2..0927019062d2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
@@ -631,6 +631,13 @@ mlx5_eswitch_enable_pf_vf_vports(struct mlx5_eswitch *esw,
 				 enum mlx5_eswitch_vport_event enabled_events);
 void mlx5_eswitch_disable_pf_vf_vports(struct mlx5_eswitch *esw);
 
+int
+esw_vport_create_offloads_acl_tables(struct mlx5_eswitch *esw,
+				     struct mlx5_vport *vport);
+void
+esw_vport_destroy_offloads_acl_tables(struct mlx5_eswitch *esw,
+				      struct mlx5_vport *vport);
+
 #else  /* CONFIG_MLX5_ESWITCH */
 /* eswitch API stubs */
 static inline int  mlx5_eswitch_init(struct mlx5_core_dev *dev) { return 0; }
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index 756031dcf056..2485c2a7ad9d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -1964,7 +1964,7 @@ static bool esw_use_vport_metadata(const struct mlx5_eswitch *esw)
 	       esw_check_vport_match_metadata_supported(esw);
 }
 
-static int
+int
 esw_vport_create_offloads_acl_tables(struct mlx5_eswitch *esw,
 				     struct mlx5_vport *vport)
 {
@@ -1982,7 +1982,7 @@ esw_vport_create_offloads_acl_tables(struct mlx5_eswitch *esw,
 	return err;
 }
 
-static void
+void
 esw_vport_destroy_offloads_acl_tables(struct mlx5_eswitch *esw,
 				      struct mlx5_vport *vport)
 {
@@ -1990,43 +1990,27 @@ esw_vport_destroy_offloads_acl_tables(struct mlx5_eswitch *esw,
 	esw_vport_disable_ingress_acl(esw, vport);
 }
 
-static int esw_create_offloads_acl_tables(struct mlx5_eswitch *esw)
+static int esw_create_uplink_offloads_acl_tables(struct mlx5_eswitch *esw)
 {
 	struct mlx5_vport *vport;
-	int i, j;
 	int err;
 
 	if (esw_use_vport_metadata(esw))
 		esw->flags |= MLX5_ESWITCH_VPORT_MATCH_METADATA;
 
-	mlx5_esw_for_all_vports(esw, i, vport) {
-		err = esw_vport_create_offloads_acl_tables(esw, vport);
-		if (err)
-			goto err_acl_table;
-	}
-
-	if (mlx5_eswitch_vport_match_metadata_enabled(esw))
-		esw_info(esw->dev, "Use metadata reg_c as source vport to match\n");
-
-	return 0;
-
-err_acl_table:
-	for (j = MLX5_VPORT_PF; j < i; j++) {
-		vport = &esw->vports[j];
-		esw_vport_destroy_offloads_acl_tables(esw, vport);
-	}
-
+	vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_UPLINK);
+	err = esw_vport_create_offloads_acl_tables(esw, vport);
+	if (err)
+		esw->flags &= ~MLX5_ESWITCH_VPORT_MATCH_METADATA;
 	return err;
 }
 
-static void esw_destroy_offloads_acl_tables(struct mlx5_eswitch *esw)
+static void esw_destroy_uplink_offloads_acl_tables(struct mlx5_eswitch *esw)
 {
 	struct mlx5_vport *vport;
-	int i;
-
-	mlx5_esw_for_all_vports(esw, i, vport)
-		esw_vport_destroy_offloads_acl_tables(esw, vport);
 
+	vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_UPLINK);
+	esw_vport_destroy_offloads_acl_tables(esw, vport);
 	esw->flags &= ~MLX5_ESWITCH_VPORT_MATCH_METADATA;
 }
 
@@ -2044,7 +2028,7 @@ static int esw_offloads_steering_init(struct mlx5_eswitch *esw)
 	memset(&esw->fdb_table.offloads, 0, sizeof(struct offloads_fdb));
 	mutex_init(&esw->fdb_table.offloads.fdb_prio_lock);
 
-	err = esw_create_offloads_acl_tables(esw);
+	err = esw_create_uplink_offloads_acl_tables(esw);
 	if (err)
 		return err;
 
@@ -2069,7 +2053,7 @@ static int esw_offloads_steering_init(struct mlx5_eswitch *esw)
 	esw_destroy_offloads_fdb_tables(esw);
 
 create_fdb_err:
-	esw_destroy_offloads_acl_tables(esw);
+	esw_destroy_uplink_offloads_acl_tables(esw);
 
 	return err;
 }
@@ -2079,7 +2063,7 @@ static void esw_offloads_steering_cleanup(struct mlx5_eswitch *esw)
 	esw_destroy_vport_rx_group(esw);
 	esw_destroy_offloads_table(esw);
 	esw_destroy_offloads_fdb_tables(esw);
-	esw_destroy_offloads_acl_tables(esw);
+	esw_destroy_uplink_offloads_acl_tables(esw);
 }
 
 static void
-- 
2.13.6