diff options
| author |   Leon Romanovsky <leonro@mellanox.com> | 2020-02-12 09:26:27 +0200 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2020-02-13 11:38:19 -0400 |
| commit | ca750d4a9c426854e221ca404fbefeab9800134e (patch) | |
| tree | 954162d6942c035fa564e443db6e375afc9d0c8c /drivers/infiniband/core/ucma.c | |
| parent | RDMA/siw: Fix setting active_mtu attribute (diff) | |
| download | linux-dev-ca750d4a9c426854e221ca404fbefeab9800134e.tar.xz linux-dev-ca750d4a9c426854e221ca404fbefeab9800134e.zip | |
RDMA/ucma: Mask QPN to be 24 bits according to IBTA
IBTA declares QPN as 24bits, mask input to ensure that kernel
doesn't get higher bits and ensure by adding WANR_ONCE() that
other CM users do the same.
Link: https://lore.kernel.org/r/20200212072635.682689-2-leon@kernel.org
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/core/ucma.c')
| -rw-r--r-- | drivers/infiniband/core/ucma.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/core/ucma.c b/drivers/infiniband/core/ucma.c index 0274e9b704be..57e68491a2fd 100644 --- a/drivers/infiniband/core/ucma.c +++ b/drivers/infiniband/core/ucma.c @@ -1045,7 +1045,7 @@ static void ucma_copy_conn_param(struct rdma_cm_id *id, dst->retry_count = src->retry_count; dst->rnr_retry_count = src->rnr_retry_count; dst->srq = src->srq; - dst->qp_num = src->qp_num; + dst->qp_num = src->qp_num & 0xFFFFFF; dst->qkey = (id->route.addr.src_addr.ss_family == AF_IB) ? src->qkey : 0; } |