From ccbf734639cd027100b31af9a3b8579d19ccb0e2 Mon Sep 17 00:00:00 2001 From: Leon Romanovsky Date: Wed, 28 Nov 2018 20:53:39 +0200 Subject: [PATCH] RDMA/mlx5: Use stages for callback to setup and release DEVX Reuse existing infrastructure to initialize and release DEVX uid. The DevX interface is intended for user space access, so it is supposed to be initialized before ib_register_device(). Also it isn't supported in switchdev mode and don't need to initialize it in that mode. Fixes: cd773f67345d ("IB/mlx5: Manage device uid for DEVX white list commands") Reviewed-by: Mark Bloch Signed-off-by: Leon Romanovsky --- drivers/infiniband/hw/mlx5/main.c | 26 +++++++++++++++++++------- drivers/infiniband/hw/mlx5/mlx5_ib.h | 1 + 2 files changed, 20 insertions(+), 7 deletions(-) diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 7e6af18e7d82f..56472fa3e18bf 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -6237,6 +6237,22 @@ static void mlx5_ib_stage_dev_notifier_cleanup(struct mlx5_ib_dev *dev) mlx5_notifier_unregister(dev->mdev, &dev->mdev_events); } +static int mlx5_ib_stage_devx_init(struct mlx5_ib_dev *dev) +{ + int uid; + + uid = mlx5_ib_devx_create(dev); + if (uid > 0) + dev->devx_whitelist_uid = uid; + + return 0; +} +static void mlx5_ib_stage_devx_cleanup(struct mlx5_ib_dev *dev) +{ + if (dev->devx_whitelist_uid) + mlx5_ib_devx_destroy(dev, dev->devx_whitelist_uid); +} + void __mlx5_ib_remove(struct mlx5_ib_dev *dev, const struct mlx5_ib_profile *profile, int stage) @@ -6248,8 +6264,6 @@ void __mlx5_ib_remove(struct mlx5_ib_dev *dev, profile->stage[stage].cleanup(dev); } - if (dev->devx_whitelist_uid) - mlx5_ib_devx_destroy(dev, dev->devx_whitelist_uid); ib_dealloc_device((struct ib_device *)dev); } @@ -6258,7 +6272,6 @@ void *__mlx5_ib_add(struct mlx5_ib_dev *dev, { int err; int i; - int uid; for (i = 0; i < MLX5_IB_STAGE_MAX; i++) { if (profile->stage[i].init) { @@ -6268,10 +6281,6 @@ void *__mlx5_ib_add(struct mlx5_ib_dev *dev, } } - uid = mlx5_ib_devx_create(dev); - if (uid > 0) - dev->devx_whitelist_uid = uid; - dev->profile = profile; dev->ib_active = true; @@ -6326,6 +6335,9 @@ static const struct mlx5_ib_profile pf_profile = { STAGE_CREATE(MLX5_IB_STAGE_SPECS, mlx5_ib_stage_populate_specs, NULL), + STAGE_CREATE(MLX5_IB_STAGE_WHITELIST_UID, + mlx5_ib_stage_devx_init, + mlx5_ib_stage_devx_cleanup), STAGE_CREATE(MLX5_IB_STAGE_IB_REG, mlx5_ib_stage_ib_reg_init, mlx5_ib_stage_ib_reg_cleanup), diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index 7326fb8710e06..332d5c4d8ab3f 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -783,6 +783,7 @@ enum mlx5_ib_stages { MLX5_IB_STAGE_BFREG, MLX5_IB_STAGE_PRE_IB_REG_UMR, MLX5_IB_STAGE_SPECS, + MLX5_IB_STAGE_WHITELIST_UID, MLX5_IB_STAGE_IB_REG, MLX5_IB_STAGE_POST_IB_REG_UMR, MLX5_IB_STAGE_DELAY_DROP, -- 2.39.5