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Date: Mon, 26 Nov 2018 14:39:07 -0800
From: Saeed Mahameed <saeedm@...lanox.com>
To: Leon Romanovsky <leonro@...lanox.com>, saeedm@...lanox.com
Cc: netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
Jason Gunthorpe <jgg@...lanox.com>
Subject: [PATCH mlx5-next 12/13] net/mlx5: Forward SRQ resource events
Allow forwarding of SRQ events to mlx5_core interfaces, e.g. mlx5_ib.
Use mlx5_notifier_register/unregister in srq.c in order to allow seamless
transition of srq.c to infiniband subsystem.
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
.../net/ethernet/mellanox/mlx5/core/events.c | 3 ++
drivers/net/ethernet/mellanox/mlx5/core/srq.c | 38 +++++--------------
include/linux/mlx5/driver.h | 3 +-
3 files changed, 14 insertions(+), 30 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/events.c b/drivers/net/ethernet/mellanox/mlx5/core/events.c
index 201c5f6091ea..9e6e216faac3 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/events.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/events.c
@@ -44,6 +44,9 @@ static struct mlx5_nb events_nbs_ref[] = {
{.nb.notifier_call = forward_event, .event_type = MLX5_EVENT_TYPE_PATH_MIG_FAILED },
{.nb.notifier_call = forward_event, .event_type = MLX5_EVENT_TYPE_WQ_INVAL_REQ_ERROR },
{.nb.notifier_call = forward_event, .event_type = MLX5_EVENT_TYPE_WQ_ACCESS_ERROR },
+ /* SRQ events */
+ {.nb.notifier_call = forward_event, .event_type = MLX5_EVENT_TYPE_SRQ_CATAS_ERROR },
+ {.nb.notifier_call = forward_event, .event_type = MLX5_EVENT_TYPE_SRQ_RQ_LIMIT },
};
struct mlx5_events {
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/srq.c b/drivers/net/ethernet/mellanox/mlx5/core/srq.c
index 0563866c13f2..79c5f0d57956 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/srq.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/srq.c
@@ -40,15 +40,21 @@
#include "mlx5_core.h"
#include "lib/eq.h"
-static int srq_event_notifier(struct mlx5_srq_table *table,
+static int srq_event_notifier(struct notifier_block *nb,
unsigned long type, void *data)
{
+ struct mlx5_srq_table *table;
struct mlx5_core_dev *dev;
struct mlx5_core_srq *srq;
struct mlx5_priv *priv;
struct mlx5_eqe *eqe;
u32 srqn;
+ if (type != MLX5_EVENT_TYPE_SRQ_CATAS_ERROR &&
+ type != MLX5_EVENT_TYPE_SRQ_RQ_LIMIT)
+ return NOTIFY_DONE;
+
+ table = container_of(nb, struct mlx5_srq_table, nb);
priv = container_of(table, struct mlx5_priv, srq_table);
dev = container_of(priv, struct mlx5_core_dev, priv);
@@ -77,26 +83,6 @@ static int srq_event_notifier(struct mlx5_srq_table *table,
return NOTIFY_OK;
}
-static int catas_err_notifier(struct notifier_block *nb,
- unsigned long type, void *data)
-{
- struct mlx5_srq_table *table;
-
- table = mlx5_nb_cof(nb, struct mlx5_srq_table, catas_err_nb);
- /* type == MLX5_EVENT_TYPE_SRQ_CATAS_ERROR */
- return srq_event_notifier(table, type, data);
-}
-
-static int rq_limit_notifier(struct notifier_block *nb,
- unsigned long type, void *data)
-{
- struct mlx5_srq_table *table;
-
- table = mlx5_nb_cof(nb, struct mlx5_srq_table, rq_limit_nb);
- /* type == MLX5_EVENT_TYPE_SRQ_RQ_LIMIT */
- return srq_event_notifier(table, type, data);
-}
-
static int get_pas_size(struct mlx5_srq_attr *in)
{
u32 log_page_size = in->log_page_size + 12;
@@ -743,17 +729,13 @@ void mlx5_init_srq_table(struct mlx5_core_dev *dev)
spin_lock_init(&table->lock);
INIT_RADIX_TREE(&table->tree, GFP_ATOMIC);
- MLX5_NB_INIT(&table->catas_err_nb, catas_err_notifier, SRQ_CATAS_ERROR);
- mlx5_eq_notifier_register(dev, &table->catas_err_nb);
-
- MLX5_NB_INIT(&table->rq_limit_nb, rq_limit_notifier, SRQ_RQ_LIMIT);
- mlx5_eq_notifier_register(dev, &table->rq_limit_nb);
+ table->nb.notifier_call = srq_event_notifier;
+ mlx5_notifier_register(dev, &table->nb);
}
void mlx5_cleanup_srq_table(struct mlx5_core_dev *dev)
{
struct mlx5_srq_table *table = &dev->priv.srq_table;
- mlx5_eq_notifier_unregister(dev, &table->rq_limit_nb);
- mlx5_eq_notifier_unregister(dev, &table->catas_err_nb);
+ mlx5_notifier_unregister(dev, &table->nb);
}
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 4f078b7f6620..27a481b159ed 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -465,8 +465,7 @@ struct mlx5_qp_table {
};
struct mlx5_srq_table {
- struct mlx5_nb catas_err_nb;
- struct mlx5_nb rq_limit_nb;
+ struct notifier_block nb;
/* protect radix tree
*/
spinlock_t lock;
--
2.19.1
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