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From: Saeed Mahameed <saeed@kernel.org>
To: "David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Eric Dumazet <edumazet@google.com>
Cc: Saeed Mahameed <saeedm@nvidia.com>,
	netdev@vger.kernel.org, Tariq Toukan <tariqt@nvidia.com>,
	Chris Mi <cmi@nvidia.com>, Roi Dayan <roid@nvidia.com>
Subject: [V3 net 03/10] net/mlx5: E-switch, Set to legacy mode if failed to change switchdev mode
Date: Wed,  9 Nov 2022 10:40:43 -0800	[thread overview]
Message-ID: <20221109184050.108379-4-saeed@kernel.org> (raw)
In-Reply-To: <20221109184050.108379-1-saeed@kernel.org>

From: Chris Mi <cmi@nvidia.com>

No need to rollback to the other mode because probably will fail
again. Just set to legacy mode and clear fdb table created flag.
So that fdb table will not be cleared again.

Fixes: f019679ea5f2 ("net/mlx5: E-switch, Remove dependency between sriov and eswitch mode")
Signed-off-by: Chris Mi <cmi@nvidia.com>
Reviewed-by: Roi Dayan <roid@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
 .../net/ethernet/mellanox/mlx5/core/eswitch.c  | 14 ++++++++------
 .../mellanox/mlx5/core/eswitch_offloads.c      | 18 +++---------------
 2 files changed, 11 insertions(+), 21 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index c59107fa9e6d..2169486c4bfb 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -1387,12 +1387,14 @@ void mlx5_eswitch_disable_locked(struct mlx5_eswitch *esw)
 		 esw->mode == MLX5_ESWITCH_LEGACY ? "LEGACY" : "OFFLOADS",
 		 esw->esw_funcs.num_vfs, esw->enabled_vports);
 
-	esw->fdb_table.flags &= ~MLX5_ESW_FDB_CREATED;
-	if (esw->mode == MLX5_ESWITCH_OFFLOADS)
-		esw_offloads_disable(esw);
-	else if (esw->mode == MLX5_ESWITCH_LEGACY)
-		esw_legacy_disable(esw);
-	mlx5_esw_acls_ns_cleanup(esw);
+	if (esw->fdb_table.flags & MLX5_ESW_FDB_CREATED) {
+		esw->fdb_table.flags &= ~MLX5_ESW_FDB_CREATED;
+		if (esw->mode == MLX5_ESWITCH_OFFLOADS)
+			esw_offloads_disable(esw);
+		else if (esw->mode == MLX5_ESWITCH_LEGACY)
+			esw_legacy_disable(esw);
+		mlx5_esw_acls_ns_cleanup(esw);
+	}
 
 	if (esw->mode == MLX5_ESWITCH_OFFLOADS)
 		devl_rate_nodes_destroy(devlink);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index 4e50df3139c6..728ca9f2bb9d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -2310,7 +2310,7 @@ static int esw_create_restore_table(struct mlx5_eswitch *esw)
 static int esw_offloads_start(struct mlx5_eswitch *esw,
 			      struct netlink_ext_ack *extack)
 {
-	int err, err1;
+	int err;
 
 	esw->mode = MLX5_ESWITCH_OFFLOADS;
 	err = mlx5_eswitch_enable_locked(esw, esw->dev->priv.sriov.num_vfs);
@@ -2318,11 +2318,6 @@ static int esw_offloads_start(struct mlx5_eswitch *esw,
 		NL_SET_ERR_MSG_MOD(extack,
 				   "Failed setting eswitch to offloads");
 		esw->mode = MLX5_ESWITCH_LEGACY;
-		err1 = mlx5_eswitch_enable_locked(esw, MLX5_ESWITCH_IGNORE_NUM_VFS);
-		if (err1) {
-			NL_SET_ERR_MSG_MOD(extack,
-					   "Failed setting eswitch back to legacy");
-		}
 		mlx5_rescan_drivers(esw->dev);
 	}
 	if (esw->offloads.inline_mode == MLX5_INLINE_MODE_NONE) {
@@ -3389,19 +3384,12 @@ int esw_offloads_enable(struct mlx5_eswitch *esw)
 static int esw_offloads_stop(struct mlx5_eswitch *esw,
 			     struct netlink_ext_ack *extack)
 {
-	int err, err1;
+	int err;
 
 	esw->mode = MLX5_ESWITCH_LEGACY;
 	err = mlx5_eswitch_enable_locked(esw, MLX5_ESWITCH_IGNORE_NUM_VFS);
-	if (err) {
+	if (err)
 		NL_SET_ERR_MSG_MOD(extack, "Failed setting eswitch to legacy");
-		esw->mode = MLX5_ESWITCH_OFFLOADS;
-		err1 = mlx5_eswitch_enable_locked(esw, MLX5_ESWITCH_IGNORE_NUM_VFS);
-		if (err1) {
-			NL_SET_ERR_MSG_MOD(extack,
-					   "Failed setting eswitch back to offloads");
-		}
-	}
 
 	return err;
 }
-- 
2.38.1


  parent reply	other threads:[~2022-11-09 18:41 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-09 18:40 [pull request][V3 net 00/10] mlx5 fixes 2022-11-02 Saeed Mahameed
2022-11-09 18:40 ` [V3 net 01/10] net/mlx5: Bridge, verify LAG state when adding bond to bridge Saeed Mahameed
2022-11-11  0:40   ` patchwork-bot+netdevbpf
2022-11-09 18:40 ` [V3 net 02/10] net/mlx5: Allow async trigger completion execution on single CPU systems Saeed Mahameed
2022-11-09 18:40 ` Saeed Mahameed [this message]
2022-11-09 18:40 ` [V3 net 04/10] net/mlx5: fw_reset: Don't try to load device in case PCI isn't working Saeed Mahameed
2022-11-09 18:40 ` [V3 net 05/10] net/mlx5e: Add missing sanity checks for max TX WQE size Saeed Mahameed
2022-11-09 18:40 ` [V3 net 06/10] net/mlx5e: Fix usage of DMA sync API Saeed Mahameed
2022-11-09 18:40 ` [V3 net 07/10] net/mlx5e: Fix tc acts array not to be dependent on enum order Saeed Mahameed
2022-11-09 18:40 ` [V3 net 08/10] net/mlx5e: TC, Fix wrong rejection of packet-per-second policing Saeed Mahameed
2022-11-09 18:40 ` [V3 net 09/10] net/mlx5e: E-Switch, Fix comparing termination table instance Saeed Mahameed
2022-11-09 18:40 ` [V3 net 10/10] net/mlx5e: TC, Fix slab-out-of-bounds in parse_tc_actions Saeed Mahameed

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