net/mlx5: E-Switch, Honor eswitch functions changed event cap

Whenever device supports eswitch functions changed event, honor
such device setting. Do not limit it to ECPF.

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

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eq.c b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
index 052bd70..5e9319d 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/eq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eq.c
@@ -533,7 +533,7 @@ static u64 gather_async_events_mask(struct mlx5_core_dev *dev)
        if (MLX5_CAP_GEN(dev, max_num_of_monitor_counters))
                async_event_mask |= (1ull << MLX5_EVENT_TYPE_MONITOR_COUNTER);
 
-       if (mlx5_core_is_ecpf_esw_manager(dev))
+       if (mlx5_eswitch_is_funcs_handler(dev))
                async_event_mask |=
                        (1ull << MLX5_EVENT_TYPE_ESW_FUNCTIONS_CHANGED);
 

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
index 320dd83..b524813 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
@@ -406,6 +406,18 @@ static inline u16 mlx5_eswitch_manager_vport(struct mlx5_core_dev *dev)
                MLX5_VPORT_ECPF : MLX5_VPORT_PF;
 }
 
+static inline bool mlx5_eswitch_is_funcs_handler(struct mlx5_core_dev *dev)
+{
+       /* Ideally device should have the functions changed supported
+        * capability regardless of it being ECPF or PF wherever such
+        * event should be processed such as on eswitch manager device.
+        * However, some ECPF based device might not have this capability
+        * set. Hence OR for ECPF check to cover such device.
+        */
+       return MLX5_CAP_ESW(dev, esw_functions_changed) ||
+              mlx5_core_is_ecpf_esw_manager(dev);
+}
+
 static inline int mlx5_eswitch_uplink_idx(struct mlx5_eswitch *esw)
 {
        /* Uplink always locate at the last element of the array.*/
@@ -500,6 +512,7 @@ static inline void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw) {}
 static inline int  mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs, int mode) { return 0; }
 static inline void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw) {}
 static inline bool mlx5_esw_lag_prereq(struct mlx5_core_dev *dev0, struct mlx5_core_dev *dev1) { return true; }
+static inline bool mlx5_eswitch_is_funcs_handler(struct mlx5_core_dev *dev) { return false; }
 
 #define FDB_MAX_CHAIN 1
 #define FDB_SLOW_PATH_CHAIN (FDB_MAX_CHAIN + 1)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index 8368967..05cb2ff 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -1836,7 +1836,7 @@ static int esw_functions_changed_event(struct notifier_block *nb,
 static void esw_functions_changed_event_init(struct mlx5_eswitch *esw,
                                             u16 vf_nvports)
 {
-       if (!mlx5_core_is_ecpf_esw_manager(esw->dev))
+       if (!mlx5_eswitch_is_funcs_handler(esw->dev))
                return;
 
        MLX5_NB_INIT(&esw->esw_funcs.nb, esw_functions_changed_event,
@@ -1847,7 +1847,7 @@ static void esw_functions_changed_event_init(struct mlx5_eswitch *esw,
 
 static void esw_functions_changed_event_cleanup(struct mlx5_eswitch *esw)
 {
-       if (!mlx5_core_is_ecpf_esw_manager(esw->dev))
+       if (!mlx5_eswitch_is_funcs_handler(esw->dev))
                return;
 
        mlx5_eq_notifier_unregister(esw->dev, &esw->esw_funcs.nb);
@@ -1905,7 +1905,7 @@ void esw_offloads_cleanup(struct mlx5_eswitch *esw)
 
        esw_functions_changed_event_cleanup(esw);
 
-       if (mlx5_core_is_ecpf_esw_manager(esw->dev))
+       if (mlx5_eswitch_is_funcs_handler(esw->dev))
                num_vfs = esw->esw_funcs.num_vfs;
        else
                num_vfs = esw->dev->priv.sriov.num_vfs;

diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 0780242..6513b98 100644 (file)
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -665,7 +665,9 @@ struct mlx5_ifc_e_switch_cap_bits {
        u8         vport_svlan_insert[0x1];
        u8         vport_cvlan_insert_if_not_exist[0x1];
        u8         vport_cvlan_insert_overwrite[0x1];
-       u8         reserved_at_5[0x16];
+       u8         reserved_at_5[0x14];
+       u8         esw_functions_changed[0x1];
+       u8         reserved_at_1a[0x1];
        u8         ecpf_vport_exists[0x1];
        u8         counter_eswitch_affinity[0x1];
        u8         merged_eswitch[0x1];