RDMA/mlx5: Send events from IB driver about device affiliation state

[ Upstream commit 0d293714ac32650bfb669ceadf7cc2fad8161401 ]

Send blocking events from IB driver whenever the device is done being
affiliated or if it is removed from an affiliation.

This is useful since now the EN driver can register to those event and
know when a device is affiliated or not.

Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Link: https://lore.kernel.org/r/a7491c3e483cfd8d962f5f75b9a25f253043384a.1695296682.git.leon@kernel.org
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Stable-dep-of: 762a55a54eec ("net/mlx5e: Disable IPsec offload support if not FW steering")
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 5d963ab..4c4233b 100644 (file)
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -24,6 +24,7 @@
 #include <linux/mlx5/vport.h>
 #include <linux/mlx5/fs.h>
 #include <linux/mlx5/eswitch.h>
+#include <linux/mlx5/driver.h>
 #include <linux/list.h>
 #include <rdma/ib_smi.h>
 #include <rdma/ib_umem_odp.h>
@@ -3175,6 +3176,13 @@ static void mlx5_ib_unbind_slave_port(struct mlx5_ib_dev *ibdev,
 
        lockdep_assert_held(&mlx5_ib_multiport_mutex);
 
+       mlx5_core_mp_event_replay(ibdev->mdev,
+                                 MLX5_DRIVER_EVENT_AFFILIATION_REMOVED,
+                                 NULL);
+       mlx5_core_mp_event_replay(mpi->mdev,
+                                 MLX5_DRIVER_EVENT_AFFILIATION_REMOVED,
+                                 NULL);
+
        mlx5_ib_cleanup_cong_debugfs(ibdev, port_num);
 
        spin_lock(&port->mp.mpi_lock);
@@ -3226,6 +3234,7 @@ static bool mlx5_ib_bind_slave_port(struct mlx5_ib_dev *ibdev,
                                    struct mlx5_ib_multiport_info *mpi)
 {
        u32 port_num = mlx5_core_native_port_num(mpi->mdev) - 1;
+       u64 key;
        int err;
 
        lockdep_assert_held(&mlx5_ib_multiport_mutex);
@@ -3254,6 +3263,14 @@ static bool mlx5_ib_bind_slave_port(struct mlx5_ib_dev *ibdev,
 
        mlx5_ib_init_cong_debugfs(ibdev, port_num);
 
+       key = ibdev->ib_dev.index;
+       mlx5_core_mp_event_replay(mpi->mdev,
+                                 MLX5_DRIVER_EVENT_AFFILIATION_DONE,
+                                 &key);
+       mlx5_core_mp_event_replay(ibdev->mdev,
+                                 MLX5_DRIVER_EVENT_AFFILIATION_DONE,
+                                 &key);
+
        return true;
 
 unbind:

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index 1556196..6ca91c0 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -361,6 +361,12 @@ void mlx5_core_uplink_netdev_event_replay(struct mlx5_core_dev *dev)
 }
 EXPORT_SYMBOL(mlx5_core_uplink_netdev_event_replay);
 
+void mlx5_core_mp_event_replay(struct mlx5_core_dev *dev, u32 event, void *data)
+{
+       mlx5_blocking_notifier_call_chain(dev, event, data);
+}
+EXPORT_SYMBOL(mlx5_core_mp_event_replay);
+
 int mlx5_core_get_caps_mode(struct mlx5_core_dev *dev, enum mlx5_cap_type cap_type,
                            enum mlx5_cap_mode cap_mode)
 {

diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index 4d5be37..26333d6 100644 (file)
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -366,6 +366,8 @@ enum mlx5_driver_event {
        MLX5_DRIVER_EVENT_UPLINK_NETDEV,
        MLX5_DRIVER_EVENT_MACSEC_SA_ADDED,
        MLX5_DRIVER_EVENT_MACSEC_SA_DELETED,
+       MLX5_DRIVER_EVENT_AFFILIATION_DONE,
+       MLX5_DRIVER_EVENT_AFFILIATION_REMOVED,
 };
 
 enum {

diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 3033bba..5ca4e08 100644 (file)
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -1027,6 +1027,8 @@ bool mlx5_cmd_is_down(struct mlx5_core_dev *dev);
 void mlx5_core_uplink_netdev_set(struct mlx5_core_dev *mdev, struct net_device *netdev);
 void mlx5_core_uplink_netdev_event_replay(struct mlx5_core_dev *mdev);
 
+void mlx5_core_mp_event_replay(struct mlx5_core_dev *dev, u32 event, void *data);
+
 void mlx5_health_cleanup(struct mlx5_core_dev *dev);
 int mlx5_health_init(struct mlx5_core_dev *dev);
 void mlx5_start_health_poll(struct mlx5_core_dev *dev);