diff options
| author |   Bob Pearson <rpearsonhpe@gmail.com> | 2022-01-27 15:37:33 -0600 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@nvidia.com> | 2022-01-28 14:33:28 -0400 |
| commit | f9f484605779fbdc1dcbb820834ace80d8211cad (patch) | |
| tree | 38d23c59b6e00453b58eb1d94be078168d151871 /drivers/infiniband/sw/rxe/rxe_qp.c | |
| parent | RDMA/rxe: Rename rxe_mc_grp and rxe_mc_elem (diff) | |
| download | linux-dev-f9f484605779fbdc1dcbb820834ace80d8211cad.tar.xz linux-dev-f9f484605779fbdc1dcbb820834ace80d8211cad.zip | |
RDMA/rxe: Enforce IBA o10-2.2.3
Add code to check if a QP is attached to one or more multicast groups
when destroy_qp is called and return an error if so.
Link: https://lore.kernel.org/r/20220127213755.31697-5-rpearsonhpe@gmail.com
Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/sw/rxe/rxe_qp.c')
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_qp.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_qp.c b/drivers/infiniband/sw/rxe/rxe_qp.c index 5018b9387694..3325c2400e2f 100644 --- a/drivers/infiniband/sw/rxe/rxe_qp.c +++ b/drivers/infiniband/sw/rxe/rxe_qp.c @@ -770,6 +770,20 @@ int rxe_qp_to_attr(struct rxe_qp *qp, struct ib_qp_attr *attr, int mask) return 0; } +int rxe_qp_chk_destroy(struct rxe_qp *qp) +{ + /* See IBA o10-2.2.3 + * An attempt to destroy a QP while attached to a mcast group + * will fail immediately. + */ + if (atomic_read(&qp->mcg_num)) { + pr_debug("Attempt to destroy QP while attached to multicast group\n"); + return -EBUSY; + } + + return 0; +} + /* called by the destroy qp verb */ void rxe_qp_destroy(struct rxe_qp *qp) { |