diff mbox series

[mlx5-next,1/9] RDMA/mlx5: Send events from IB driver about device affiliation state

Message ID a7491c3e483cfd8d962f5f75b9a25f253043384a.1695296682.git.leon@kernel.org (mailing list archive)
State Accepted
Delegated to: Netdev Maintainers
Headers show
Series Support IPsec packet offload in multiport RoCE devices | expand

Checks

Context Check Description
netdev/series_format success Posting correctly formatted
netdev/tree_selection success Guessed tree name to be net-next
netdev/fixes_present success Fixes tag not required for -next series
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 1344 this patch: 1344
netdev/cc_maintainers warning 1 maintainers not CCed: davem@davemloft.net
netdev/build_clang success Errors and warnings before: 1363 this patch: 1363
netdev/verify_signedoff success Signed-off-by tag matches author and committer
netdev/deprecated_api success None detected
netdev/check_selftest success No net selftest shell script
netdev/verify_fixes success No Fixes tag
netdev/build_allmodconfig_warn success Errors and warnings before: 1370 this patch: 1370
netdev/checkpatch warning WARNING: line length of 81 exceeds 80 columns
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/source_inline success Was 0 now: 0

Commit Message

Leon Romanovsky Sept. 21, 2023, 12:10 p.m. UTC 
From: Patrisious Haddad <phaddad@nvidia.com>

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>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
 drivers/infiniband/hw/mlx5/main.c              | 17 +++++++++++++++++
 drivers/net/ethernet/mellanox/mlx5/core/main.c |  6 ++++++
 include/linux/mlx5/device.h                    |  2 ++
 include/linux/mlx5/driver.h                    |  2 ++
 4 files changed, 27 insertions(+)
diff mbox series

Patch

diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index aed5cdea50e6..530d88784e41 100644
--- 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 d17c9c31b165..307ffe6300f8 100644
--- 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 8fbe22de16ef..820bca965fb6 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -367,6 +367,8 @@  enum mlx5_driver_event {
 	MLX5_DRIVER_EVENT_MACSEC_SA_ADDED,
 	MLX5_DRIVER_EVENT_MACSEC_SA_DELETED,
 	MLX5_DRIVER_EVENT_SF_PEER_DEVLINK,
+	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 92434814c855..52e982bc0f50 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -1029,6 +1029,8 @@  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);