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| author |   Bob Pearson <rpearsonhpe@gmail.com> | 2022-04-20 20:40:40 -0500 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@nvidia.com> | 2022-05-09 09:03:45 -0300 |
| commit | 4703b4f0d94a5f887297713a2f6c2916a1ef08fd (patch) | |
| tree | 1f616e7e7d7ef783fec2638b878fdf9a83a351f1 /drivers/infiniband/sw/rxe/rxe_verbs.c | |
| parent | RDMA/rxe: Move mw cleanup code to rxe_mw_cleanup() (diff) | |
| download | linux-dev-4703b4f0d94a5f887297713a2f6c2916a1ef08fd.tar.xz linux-dev-4703b4f0d94a5f887297713a2f6c2916a1ef08fd.zip | |
RDMA/rxe: Enforce IBA C11-17
Add a counter to keep track of the number of WQs connected to a CQ and
return an error if destroy_cq() is called while the counter is non zero.
Link: https://lore.kernel.org/r/20220421014042.26985-8-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_verbs.c')
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_verbs.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_verbs.c b/drivers/infiniband/sw/rxe/rxe_verbs.c index 198afb055b06..9d995854a174 100644 --- a/drivers/infiniband/sw/rxe/rxe_verbs.c +++ b/drivers/infiniband/sw/rxe/rxe_verbs.c @@ -795,6 +795,12 @@ static int rxe_destroy_cq(struct ib_cq *ibcq, struct ib_udata *udata) { struct rxe_cq *cq = to_rcq(ibcq); + /* See IBA C11-17: The CI shall return an error if this Verb is + * invoked while a Work Queue is still associated with the CQ. + */ + if (atomic_read(&cq->num_wq)) + return -EINVAL; + rxe_cq_disable(cq); rxe_put(cq); |