From d0c45c8556e57342d44c9548763609ffcc4e3866 Mon Sep 17 00:00:00 2001 From: Leon Romanovsky Date: Mon, 7 Sep 2020 15:09:19 +0300 Subject: [PATCH] RDMA: Change XRCD destroy return value Update XRCD destroy flow to allow command failure. Fixes: 28ad5f65c314 ("RDMA: Move XRCD to be under ib_core responsibility") Link: https://lore.kernel.org/r/20200907120921.476363-8-leon@kernel.org Signed-off-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- drivers/infiniband/core/verbs.c | 8 ++++++-- drivers/infiniband/hw/mlx4/main.c | 3 ++- drivers/infiniband/hw/mlx5/mlx5_ib.h | 2 +- drivers/infiniband/hw/mlx5/qp.c | 4 ++-- include/rdma/ib_verbs.h | 2 +- 5 files changed, 12 insertions(+), 7 deletions(-) diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index 93503f10bcbb..117265616cd0 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -2345,13 +2345,17 @@ EXPORT_SYMBOL(ib_alloc_xrcd_user); */ int ib_dealloc_xrcd_user(struct ib_xrcd *xrcd, struct ib_udata *udata) { + int ret; + if (atomic_read(&xrcd->usecnt)) return -EBUSY; WARN_ON(!xa_empty(&xrcd->tgt_qps)); - xrcd->device->ops.dealloc_xrcd(xrcd, udata); + ret = xrcd->device->ops.dealloc_xrcd(xrcd, udata); + if (ret) + return ret; kfree(xrcd); - return 0; + return ret; } EXPORT_SYMBOL(ib_dealloc_xrcd_user); diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index 1be0108db992..8e1e3b8a5a0d 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -1256,11 +1256,12 @@ static int mlx4_ib_alloc_xrcd(struct ib_xrcd *ibxrcd, struct ib_udata *udata) return err; } -static void mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata) +static int mlx4_ib_dealloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata) { ib_destroy_cq(to_mxrcd(xrcd)->cq); ib_dealloc_pd(to_mxrcd(xrcd)->pd); mlx4_xrcd_free(to_mdev(xrcd->device)->dev, to_mxrcd(xrcd)->xrcdn); + return 0; } static int add_gid_entry(struct ib_qp *ibqp, union ib_gid *gid) diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index 0a65f7ba40c4..041f9d1d696b 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -1196,7 +1196,7 @@ int mlx5_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, const struct ib_mad *in, struct ib_mad *out, size_t *out_mad_size, u16 *out_mad_pkey_index); int mlx5_ib_alloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata); -void mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata); +int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata); int mlx5_ib_get_buf_offset(u64 addr, int page_shift, u32 *offset); int mlx5_query_ext_port_caps(struct mlx5_ib_dev *dev, u8 port); int mlx5_query_mad_ifc_smp_attr_node_info(struct ib_device *ibdev, diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index ee7265fc9237..e0b61156fb52 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -4745,12 +4745,12 @@ int mlx5_ib_alloc_xrcd(struct ib_xrcd *ibxrcd, struct ib_udata *udata) return mlx5_cmd_xrcd_alloc(dev->mdev, &xrcd->xrcdn, 0); } -void mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata) +int mlx5_ib_dealloc_xrcd(struct ib_xrcd *xrcd, struct ib_udata *udata) { struct mlx5_ib_dev *dev = to_mdev(xrcd->device); u32 xrcdn = to_mxrcd(xrcd)->xrcdn; - mlx5_cmd_xrcd_dealloc(dev->mdev, xrcdn, 0); + return mlx5_cmd_xrcd_dealloc(dev->mdev, xrcdn, 0); } static void mlx5_ib_wq_event(struct mlx5_core_qp *core_qp, int type) diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index bec05baaeaed..e25e25ad8d2c 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -2452,7 +2452,7 @@ struct ib_device_ops { int (*attach_mcast)(struct ib_qp *qp, union ib_gid *gid, u16 lid); int (*detach_mcast)(struct ib_qp *qp, union ib_gid *gid, u16 lid); int (*alloc_xrcd)(struct ib_xrcd *xrcd, struct ib_udata *udata); - void (*dealloc_xrcd)(struct ib_xrcd *xrcd, struct ib_udata *udata); + int (*dealloc_xrcd)(struct ib_xrcd *xrcd, struct ib_udata *udata); struct ib_flow *(*create_flow)(struct ib_qp *qp, struct ib_flow_attr *flow_attr, struct ib_udata *udata);