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Date: Tue, 3 Aug 2021 16:19:54 -0700
From: Saeed Mahameed <saeed@...nel.org>
To: Saeed Mahameed <saeedm@...dia.com>,
Leon Romanovsky <leonro@...dia.com>
Cc: netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
Mark Bloch <mbloch@...dia.com>,
Mark Zhang <markzhang@...dia.com>
Subject: [PATCH mlx5-next 09/14] net/mlx5: E-Switch, Add event callback for representors
From: Mark Bloch <mbloch@...dia.com>
This callback will allow to notify representors about relevant events
when in OFFLOADS mode. In downstream patches, this will be used to notify
about PAIR/UNPAIR devcom events.
Signed-off-by: Mark Bloch <mbloch@...dia.com>
Reviewed-by: Mark Zhang <markzhang@...dia.com>
Signed-off-by: Saeed Mahameed <saeedm@...dia.com>
---
.../mellanox/mlx5/core/eswitch_offloads.c | 50 +++++++++++++++++--
include/linux/mlx5/eswitch.h | 9 ++++
2 files changed, 56 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index dd5eadd6047b..b57a5c188832 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -2316,11 +2316,22 @@ void esw_offloads_unload_rep(struct mlx5_eswitch *esw, u16 vport_num)
#define ESW_OFFLOADS_DEVCOM_PAIR (0)
#define ESW_OFFLOADS_DEVCOM_UNPAIR (1)
-static int mlx5_esw_offloads_pair(struct mlx5_eswitch *esw,
- struct mlx5_eswitch *peer_esw)
+static void mlx5_esw_offloads_rep_event_unpair(struct mlx5_eswitch *esw)
{
+ const struct mlx5_eswitch_rep_ops *ops;
+ struct mlx5_eswitch_rep *rep;
+ unsigned long i;
+ u8 rep_type;
- return esw_add_fdb_peer_miss_rules(esw, peer_esw->dev);
+ mlx5_esw_for_each_rep(esw, i, rep) {
+ rep_type = NUM_REP_TYPES;
+ while (rep_type--) {
+ ops = esw->offloads.rep_ops[rep_type];
+ if (atomic_read(&rep->rep_data[rep_type].state) == REP_LOADED &&
+ ops->event)
+ ops->event(esw, rep, MLX5_SWITCHDEV_EVENT_UNPAIR, NULL);
+ }
+ }
}
static void mlx5_esw_offloads_unpair(struct mlx5_eswitch *esw)
@@ -2328,9 +2339,42 @@ static void mlx5_esw_offloads_unpair(struct mlx5_eswitch *esw)
#if IS_ENABLED(CONFIG_MLX5_CLS_ACT)
mlx5e_tc_clean_fdb_peer_flows(esw);
#endif
+ mlx5_esw_offloads_rep_event_unpair(esw);
esw_del_fdb_peer_miss_rules(esw);
}
+static int mlx5_esw_offloads_pair(struct mlx5_eswitch *esw,
+ struct mlx5_eswitch *peer_esw)
+{
+ const struct mlx5_eswitch_rep_ops *ops;
+ struct mlx5_eswitch_rep *rep;
+ unsigned long i;
+ u8 rep_type;
+ int err;
+
+ err = esw_add_fdb_peer_miss_rules(esw, peer_esw->dev);
+ if (err)
+ return err;
+
+ mlx5_esw_for_each_rep(esw, i, rep) {
+ for (rep_type = 0; rep_type < NUM_REP_TYPES; rep_type++) {
+ ops = esw->offloads.rep_ops[rep_type];
+ if (atomic_read(&rep->rep_data[rep_type].state) == REP_LOADED &&
+ ops->event) {
+ err = ops->event(esw, rep, MLX5_SWITCHDEV_EVENT_PAIR, peer_esw);
+ if (err)
+ goto err_out;
+ }
+ }
+ }
+
+ return 0;
+
+err_out:
+ mlx5_esw_offloads_unpair(esw);
+ return err;
+}
+
static int mlx5_esw_offloads_set_ns_peer(struct mlx5_eswitch *esw,
struct mlx5_eswitch *peer_esw,
bool pair)
diff --git a/include/linux/mlx5/eswitch.h b/include/linux/mlx5/eswitch.h
index 0bfcf7b8ecf9..4ab5c1fc1270 100644
--- a/include/linux/mlx5/eswitch.h
+++ b/include/linux/mlx5/eswitch.h
@@ -29,11 +29,20 @@ enum {
REP_LOADED,
};
+enum mlx5_switchdev_event {
+ MLX5_SWITCHDEV_EVENT_PAIR,
+ MLX5_SWITCHDEV_EVENT_UNPAIR,
+};
+
struct mlx5_eswitch_rep;
struct mlx5_eswitch_rep_ops {
int (*load)(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep);
void (*unload)(struct mlx5_eswitch_rep *rep);
void *(*get_proto_dev)(struct mlx5_eswitch_rep *rep);
+ int (*event)(struct mlx5_eswitch *esw,
+ struct mlx5_eswitch_rep *rep,
+ enum mlx5_switchdev_event event,
+ void *data);
};
struct mlx5_eswitch_rep_data {
--
2.31.1
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