diff options
| author |   Guy Levi <guyle@mellanox.com> | 2018-09-06 17:27:01 +0300 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2018-09-11 09:28:06 -0600 |
| commit | 70cd20aed00f719f3536154df02596106e431e45 (patch) | |
| tree | 2b5a333239617d3a3c6445c67c637458fcf93c42 /drivers/infiniband/core/uverbs_uapi.c | |
| parent | RDMA/mlx5: Enable attaching packet reformat action to steering flows (diff) | |
| download | linux-dev-70cd20aed00f719f3536154df02596106e431e45.tar.xz linux-dev-70cd20aed00f719f3536154df02596106e431e45.zip | |
IB/uverbs: Add IDRs array attribute type to ioctl() interface
Methods sometimes need to get a flexible set of IDRs and not a strict set
as can be achieved today by the conventional IDR attribute. Add a new
IDRS_ARRAY attribute to the generic uverbs ioctl layer.
IDRS_ARRAY points to array of idrs of the same object type and same access
rights, only write and read are supported.
Signed-off-by: Guy Levi <guyle@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>``
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/core/uverbs_uapi.c')
| -rw-r--r-- | drivers/infiniband/core/uverbs_uapi.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/infiniband/core/uverbs_uapi.c b/drivers/infiniband/core/uverbs_uapi.c index 73ea6f0db88f..cdf5ced2c84f 100644 --- a/drivers/infiniband/core/uverbs_uapi.c +++ b/drivers/infiniband/core/uverbs_uapi.c @@ -73,6 +73,18 @@ static int uapi_merge_method(struct uverbs_api *uapi, if (attr->attr.type == UVERBS_ATTR_TYPE_ENUM_IN) method_elm->driver_method |= is_driver; + /* + * Like other uobject based things we only support a single + * uobject being NEW'd or DESTROY'd + */ + if (attr->attr.type == UVERBS_ATTR_TYPE_IDRS_ARRAY) { + u8 access = attr->attr.u2.objs_arr.access; + + if (WARN_ON(access == UVERBS_ACCESS_NEW || + access == UVERBS_ACCESS_DESTROY)) + return -EINVAL; + } + attr_slot = uapi_add_elm(uapi, method_key | uapi_key_attr(attr->id), sizeof(*attr_slot)); |