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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
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10
drivers/infiniband/hw/mlx5/qp.c
View File

@@ -1904,7 +1904,7 @@ static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd,
qp->flags |= MLX5_IB_QP_CVLAN_STRIPPING;
}
if (pd && pd->uobject) {
if (udata) {
if (ib_copy_from_udata(&ucmd, udata, sizeof(ucmd))) {
mlx5_ib_dbg(dev, "copy failed\n");
return -EFAULT;
@@ -1986,14 +1986,14 @@ static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd,
qp->has_rq = qp_has_rq(init_attr);
err = set_rq_size(dev, &init_attr->cap, qp->has_rq,
qp, (pd && pd->uobject) ? &ucmd : NULL);
qp, udata ? &ucmd : NULL);
if (err) {
mlx5_ib_dbg(dev, "err %d\n", err);
return err;
}
if (pd) {
if (pd->uobject) {
if (udata) {
__u32 max_wqes =
1 << MLX5_CAP_GEN(mdev, log_max_qp_sz);
mlx5_ib_dbg(dev, "requested sq_wqe_count (%d)\n", ucmd.sq_wqe_count);
@@ -2064,7 +2064,7 @@ static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd,
if (qp->scat_cqe && is_connected(init_attr->qp_type)) {
configure_responder_scat_cqe(init_attr, qpc);
configure_requester_scat_cqe(dev, init_attr,
(pd && pd->uobject) ? &ucmd : NULL,
udata ? &ucmd : NULL,
qpc);
}
@@ -2504,7 +2504,7 @@ struct ib_qp *mlx5_ib_create_qp(struct ib_pd *pd,
dev = to_mdev(pd->device);
if (init_attr->qp_type == IB_QPT_RAW_PACKET) {
if (!pd->uobject) {
if (!udata) {
mlx5_ib_dbg(dev, "Raw Packet QP is not supported for kernel consumers\n");
return ERR_PTR(-EINVAL);
} else if (!to_mucontext(pd->uobject->context)->cqe_version) {

8
drivers/infiniband/hw/mlx5/srq.c
View File

@@ -260,14 +260,14 @@ struct ib_srq *mlx5_ib_create_srq(struct ib_pd *pd,
}
in.type = init_attr->srq_type;
if (pd->uobject)
if (udata)
err = create_srq_user(pd, srq, &in, udata, buf_size);
else
err = create_srq_kernel(dev, srq, &in, buf_size);
if (err) {
mlx5_ib_warn(dev, "create srq %s failed, err %d\n",
pd->uobject ? "user" : "kernel", err);
udata ? "user" : "kernel", err);
goto err_srq;
}
@@ -312,7 +312,7 @@ struct ib_srq *mlx5_ib_create_srq(struct ib_pd *pd,
srq->msrq.event = mlx5_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))) {
mlx5_ib_dbg(dev, "copy to user failed\n");
err = -EFAULT;
@@ -327,7 +327,7 @@ err_core:
mlx5_cmd_destroy_srq(dev, &srq->msrq);
err_usr_kern_srq:
if (pd->uobject)
if (udata)
destroy_srq_user(pd, srq);
else
destroy_srq_kernel(dev, srq);