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RDMA: Cleanup undesired pd->uobject usage

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Drivers should be using udata to determine if a method is invoked from
user space or kernel space. A pd does not necessarily say a different
objects is kernel or user.

Transforming the tests to use udata eliminates a large number of uobject
references from the drivers.

Signed-off-by: Shamir Rabinovitch <shamir.rabinovitch@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Shamir Rabinovitch
2018-12-17 17:15:18 +02:00
committed by Jason Gunthorpe
parent af8d70375d
commit e00b64f7c5
24 changed files with 122 additions and 110 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
drivers/infiniband/hw/mlx4/qp.c
View File

@@ -323,7 +323,7 @@ static int send_wqe_overhead(enum mlx4_ib_qp_type type, u32 flags)
}
static int set_rq_size(struct mlx4_ib_dev *dev, struct ib_qp_cap *cap,
int is_user, int has_rq, struct mlx4_ib_qp *qp,
bool is_user, int has_rq, struct mlx4_ib_qp *qp,
u32 inl_recv_sz)
{
/* Sanity check RQ size before proceeding */
@@ -942,7 +942,7 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
qp->sq_signal_bits = cpu_to_be32(MLX4_WQE_CTRL_CQ_UPDATE);
if (pd->uobject) {
if (udata) {
union {
struct mlx4_ib_create_qp qp;
struct mlx4_ib_create_wq wq;
@@ -991,7 +991,7 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
qp->flags |= MLX4_IB_QP_SCATTER_FCS;
}
err = set_rq_size(dev, &init_attr->cap, !!pd->uobject,
err = set_rq_size(dev, &init_attr->cap, udata,
qp_has_rq(init_attr), qp, qp->inl_recv_sz);
if (err)
goto err;
@@ -1043,7 +1043,7 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd,
}
qp->mqp.usage = MLX4_RES_USAGE_USER_VERBS;
} else {
err = set_rq_size(dev, &init_attr->cap, !!pd->uobject,
err = set_rq_size(dev, &init_attr->cap, udata,
qp_has_rq(init_attr), qp, 0);
if (err)
goto err;
@@ -1189,7 +1189,7 @@ err_proxy:
if (qp->mlx4_ib_qp_type == MLX4_IB_QPT_PROXY_GSI)
free_proxy_bufs(pd->device, qp);
err_wrid:
if (pd->uobject) {
if (udata) {
if (qp_has_rq(init_attr))
mlx4_ib_db_unmap_user(to_mucontext(pd->uobject->context), &qp->db);
} else {
@@ -1201,13 +1201,13 @@ err_mtt:
mlx4_mtt_cleanup(dev->dev, &qp->mtt);
err_buf:
if (pd->uobject)
if (qp->umem)
ib_umem_release(qp->umem);
else
mlx4_buf_free(dev->dev, qp->buf_size, &qp->buf);
err_db:
if (!pd->uobject && qp_has_rq(init_attr))
if (!udata && qp_has_rq(init_attr))
mlx4_db_free(dev->dev, &qp->db);
err:
@@ -1332,7 +1332,7 @@ static void destroy_qp_rss(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp)
}
static void destroy_qp_common(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp,
enum mlx4_ib_source_type src, int is_user)
enum mlx4_ib_source_type src, bool is_user)
{
struct mlx4_ib_cq *send_cq, *recv_cq;
unsigned long flags;
@@ -1612,7 +1612,7 @@ static int _mlx4_ib_destroy_qp(struct ib_qp *qp)
struct mlx4_ib_pd *pd;
pd = get_pd(mqp);
destroy_qp_common(dev, mqp, MLX4_IB_QP_SRC, !!pd->ibpd.uobject);
destroy_qp_common(dev, mqp, MLX4_IB_QP_SRC, qp->uobject);
}
if (is_sqp(dev, mqp))
@@ -4044,7 +4044,7 @@ struct ib_wq *mlx4_ib_create_wq(struct ib_pd *pd,
struct mlx4_ib_create_wq ucmd;
int err, required_cmd_sz;
if (!(udata && pd->uobject))
if (!udata)
return ERR_PTR(-EINVAL);
required_cmd_sz = offsetof(typeof(ucmd), comp_mask) +

10
drivers/infiniband/hw/mlx4/srq.c
View File

@@ -105,7 +105,7 @@ struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
buf_size = srq->msrq.max * desc_size;
if (pd->uobject) {
if (udata) {
struct mlx4_ib_create_srq ucmd;
if (ib_copy_from_udata(&ucmd, udata, sizeof ucmd)) {
@@ -191,7 +191,7 @@ struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
srq->msrq.event = mlx4_ib_srq_event;
srq->ibsrq.ext.xrc.srq_num = srq->msrq.srqn;
if (pd->uobject)
if (udata)
if (ib_copy_to_udata(udata, &srq->msrq.srqn, sizeof (__u32))) {
err = -EFAULT;
goto err_wrid;
@@ -202,7 +202,7 @@ struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd,
return &srq->ibsrq;
err_wrid:
if (pd->uobject)
if (udata)
mlx4_ib_db_unmap_user(to_mucontext(pd->uobject->context), &srq->db);
else
kvfree(srq->wrid);
@@ -211,13 +211,13 @@ err_mtt:
mlx4_mtt_cleanup(dev->dev, &srq->mtt);
err_buf:
if (pd->uobject)
if (srq->umem)
ib_umem_release(srq->umem);
else
mlx4_buf_free(dev->dev, buf_size, &srq->buf);
err_db:
if (!pd->uobject)
if (!udata)
mlx4_db_free(dev->dev, &srq->db);
err_srq: