From a549a6c259fc46e49b55d5b7ce5ad1478d9a80b8 Mon Sep 17 00:00:00 2001 From: Alaa Hleihel Date: Sun, 10 May 2020 15:03:56 -0400 Subject: [PATCH 079/312] [netdrv] net/mlx5: E-switch, Prepare code to handle vport enable error Message-id: <20200510150452.10307-32-ahleihel@redhat.com> Patchwork-id: 306655 Patchwork-instance: patchwork O-Subject: [RHEL8.3 BZ 1789380 v2 31/87] net/mlx5: E-switch, Prepare code to handle vport enable error Bugzilla: 1789380 RH-Acked-by: Kamal Heib RH-Acked-by: Jarod Wilson RH-Acked-by: Tony Camuso RH-Acked-by: Jonathan Toppins Bugzilla: http://bugzilla.redhat.com/1789380 Upstream: v5.5-rc1 commit 925a6acc77a70f8b5bfd0df75e36557aa400b0a0 Author: Parav Pandit Date: Mon Oct 28 23:35:15 2019 +0000 net/mlx5: E-switch, Prepare code to handle vport enable error In subsequent patch, esw_enable_vport() could fail and return error. Prepare code to handle such error. Signed-off-by: Parav Pandit Reviewed-by: Vu Pham Signed-off-by: Saeed Mahameed Signed-off-by: Alaa Hleihel Signed-off-by: Frantisek Hrbata --- drivers/net/ethernet/mellanox/mlx5/core/eswitch.c | 62 ++++++++++++++++------ drivers/net/ethernet/mellanox/mlx5/core/eswitch.h | 2 +- .../ethernet/mellanox/mlx5/core/eswitch_offloads.c | 5 +- 3 files changed, 50 insertions(+), 19 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c index 8067667fd59e..2ecb993545f9 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c @@ -443,6 +443,13 @@ static int esw_create_legacy_table(struct mlx5_eswitch *esw) return err; } +static void esw_destroy_legacy_table(struct mlx5_eswitch *esw) +{ + esw_cleanup_vepa_rules(esw); + esw_destroy_legacy_fdb_table(esw); + esw_destroy_legacy_vepa_table(esw); +} + #define MLX5_LEGACY_SRIOV_VPORT_EVENTS (MLX5_VPORT_UC_ADDR_CHANGE | \ MLX5_VPORT_MC_ADDR_CHANGE | \ MLX5_VPORT_PROMISC_CHANGE) @@ -459,15 +466,10 @@ static int esw_legacy_enable(struct mlx5_eswitch *esw) mlx5_esw_for_each_vf_vport(esw, i, vport, esw->esw_funcs.num_vfs) vport->info.link_state = MLX5_VPORT_ADMIN_STATE_AUTO; - mlx5_eswitch_enable_pf_vf_vports(esw, MLX5_LEGACY_SRIOV_VPORT_EVENTS); - return 0; -} - -static void esw_destroy_legacy_table(struct mlx5_eswitch *esw) -{ - esw_cleanup_vepa_rules(esw); - esw_destroy_legacy_fdb_table(esw); - esw_destroy_legacy_vepa_table(esw); + ret = mlx5_eswitch_enable_pf_vf_vports(esw, MLX5_LEGACY_SRIOV_VPORT_EVENTS); + if (ret) + esw_destroy_legacy_table(esw); + return ret; } static void esw_legacy_disable(struct mlx5_eswitch *esw) @@ -1699,8 +1701,8 @@ static void esw_legacy_vport_destroy_drop_counters(struct mlx5_vport *vport) mlx5_fc_destroy(dev, vport->egress.legacy.drop_counter); } -static void esw_enable_vport(struct mlx5_eswitch *esw, struct mlx5_vport *vport, - enum mlx5_eswitch_vport_event enabled_events) +static int esw_enable_vport(struct mlx5_eswitch *esw, struct mlx5_vport *vport, + enum mlx5_eswitch_vport_event enabled_events) { u16 vport_num = vport->vport; @@ -1738,6 +1740,7 @@ static void esw_enable_vport(struct mlx5_eswitch *esw, struct mlx5_vport *vport, esw->enabled_vports++; esw_debug(esw->dev, "Enabled VPORT(%d)\n", vport_num); mutex_unlock(&esw->state_lock); + return 0; } static void esw_disable_vport(struct mlx5_eswitch *esw, @@ -1862,26 +1865,51 @@ static void mlx5_eswitch_clear_vf_vports_info(struct mlx5_eswitch *esw) /* mlx5_eswitch_enable_pf_vf_vports() enables vports of PF, ECPF and VFs * whichever are present on the eswitch. */ -void +int mlx5_eswitch_enable_pf_vf_vports(struct mlx5_eswitch *esw, enum mlx5_eswitch_vport_event enabled_events) { struct mlx5_vport *vport; + int num_vfs; + int ret; int i; /* Enable PF vport */ vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_PF); - esw_enable_vport(esw, vport, enabled_events); + ret = esw_enable_vport(esw, vport, enabled_events); + if (ret) + return ret; - /* Enable ECPF vports */ + /* Enable ECPF vport */ if (mlx5_ecpf_vport_exists(esw->dev)) { vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_ECPF); - esw_enable_vport(esw, vport, enabled_events); + ret = esw_enable_vport(esw, vport, enabled_events); + if (ret) + goto ecpf_err; } /* Enable VF vports */ - mlx5_esw_for_each_vf_vport(esw, i, vport, esw->esw_funcs.num_vfs) - esw_enable_vport(esw, vport, enabled_events); + mlx5_esw_for_each_vf_vport(esw, i, vport, esw->esw_funcs.num_vfs) { + ret = esw_enable_vport(esw, vport, enabled_events); + if (ret) + goto vf_err; + } + return 0; + +vf_err: + num_vfs = i - 1; + mlx5_esw_for_each_vf_vport_reverse(esw, i, vport, num_vfs) + esw_disable_vport(esw, vport); + + if (mlx5_ecpf_vport_exists(esw->dev)) { + vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_ECPF); + esw_disable_vport(esw, vport); + } + +ecpf_err: + vport = mlx5_eswitch_get_vport(esw, MLX5_VPORT_PF); + esw_disable_vport(esw, vport); + return ret; } /* mlx5_eswitch_disable_pf_vf_vports() disables vports of PF, ECPF and VFs diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h index f12d446e2c87..d29df0c302f2 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h @@ -626,7 +626,7 @@ bool mlx5_eswitch_is_vf_vport(const struct mlx5_eswitch *esw, u16 vport_num); void mlx5_eswitch_update_num_of_vfs(struct mlx5_eswitch *esw, const int num_vfs); int mlx5_esw_funcs_changed_handler(struct notifier_block *nb, unsigned long type, void *data); -void +int 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); diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c index 00d126fa6e02..b33543c5f68f 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c @@ -2158,7 +2158,9 @@ int esw_offloads_enable(struct mlx5_eswitch *esw) mlx5_esw_for_each_vf_vport(esw, i, vport, esw->esw_funcs.num_vfs) vport->info.link_state = MLX5_VPORT_ADMIN_STATE_DOWN; - mlx5_eswitch_enable_pf_vf_vports(esw, MLX5_VPORT_UC_ADDR_CHANGE); + err = mlx5_eswitch_enable_pf_vf_vports(esw, MLX5_VPORT_UC_ADDR_CHANGE); + if (err) + goto err_vports; err = esw_offloads_load_all_reps(esw); if (err) @@ -2171,6 +2173,7 @@ int esw_offloads_enable(struct mlx5_eswitch *esw) err_reps: mlx5_eswitch_disable_pf_vf_vports(esw); +err_vports: esw_set_passing_vport_metadata(esw, false); err_vport_metadata: esw_offloads_steering_cleanup(esw); -- 2.13.6