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RDMA/core: Fail early if unsupported QP is provided 

When requested QP type is not supported for a {device, port}, return the
error right away before validating all parameters during mad agent
registration time.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Reviewed-by: Daniel Jurgens <danielj@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Parav Pandit 2018-08-28 14:45:28 +03:00 committed by Jason Gunthorpe
parent 2c910cb75e
commit 798bba01b4
1 changed files with 4 additions and 0 deletions
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4
drivers/infiniband/core/mad.c
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@ -220,6 +220,10 @@ struct ib_mad_agent *ib_register_mad_agent(struct ib_device *device,
int ret2, qpn;
u8 mgmt_class, vclass;
if ((qp_type == IB_QPT_SMI && !rdma_cap_ib_smi(device, port_num)) ||
(qp_type == IB_QPT_GSI && !rdma_cap_ib_cm(device, port_num)))
return ERR_PTR(-EPROTONOSUPPORT);
/* Validate parameters */
qpn = get_spl_qp_index(qp_type);
if (qpn == -1) {