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IB/rdmavt: Add support for rvt_query_device function 

With this commit, the drivers using rdmavt need not define query_device
function. But they should fill in the IB device attributes structure
rvt_dev_info.dparms.props

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Harish Chegondi 2016-01-22 12:50:36 -08:00 committed by Doug Ledford
parent fef2efd6b4
commit feaeb6e26f
2 changed files with 11 additions and 3 deletions
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9
drivers/infiniband/sw/rdmavt/vt.c
View File

@ -68,10 +68,15 @@ static int rvt_query_device(struct ib_device *ibdev,
struct ib_device_attr *props,
struct ib_udata *uhw)
{
struct rvt_dev_info *rdi = ib_to_rvt(ibdev);
if (uhw->inlen || uhw->outlen)
return -EINVAL;
/*
* Return rvt_dev_info.props contents
* Return rvt_dev_info.dparms.props contents
*/
return -EOPNOTSUPP;
*props = rdi->dparms.props;
return 0;
}
static int rvt_modify_device(struct ib_device *device,

5
include/rdma/rdma_vt.h
View File

@ -245,7 +245,10 @@ struct rvt_dev_info {
* allocating space for this structure.
*
* The driver will also be responsible for filling in certain members of
* dparms.props
* dparms.props. The driver needs to fill in dparms exactly as it would
* want values reported to a ULP. This will be returned to the caller
* in rdmavt's device. The driver should also therefore refrain from
* modifying this directly after registration with rdmavt.
*/
/* Driver specific properties */