diff options
| author | Sagi Grimberg <sagig@mellanox.com> | 2015-09-02 22:23:04 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2015-09-03 21:50:06 +0300 |
| commit | b636401f0ec9bbf7931774e00f3adf7ee9214cce (patch) | |
| tree | 06050c24138d3d58f86eec78a4f807be1bd2a20f /drivers/infiniband/hw/mlx5/cq.c | |
| parent | 11d748045c6dadb279d1acdb6d2ea8f3f2ede85b (diff) | |
| download | linux-b636401f0ec9bbf7931774e00f3adf7ee9214cce.tar.xz | |
mlx5: Fix incorrect wc pkey_index assignment for GSI messages
Since patch series "Demux IB CM requests in the rdma_cm module" the
P_Key index is taken from the work completion rather than the message
itself.
The HCA provides us with the message P_Key. In order to provide the
P_Key index, we need to look it up. Given that this is relevant only
for GSI messages (session establishments) which is less performance critical,
micro-optimize against the GSI (is_qp1) branch.
Fixes: 4c21b5bcef73 ("IB/cma: Add net_dev and private data checks to
RDMA CM")
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/cq.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/cq.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c index 5c9eeea62805..2d0dbbf38ceb 100644 --- a/drivers/infiniband/hw/mlx5/cq.c +++ b/drivers/infiniband/hw/mlx5/cq.c @@ -33,6 +33,7 @@ #include <linux/kref.h> #include <rdma/ib_umem.h> #include <rdma/ib_user_verbs.h> +#include <rdma/ib_cache.h> #include "mlx5_ib.h" #include "user.h" @@ -227,7 +228,14 @@ static void handle_responder(struct ib_wc *wc, struct mlx5_cqe64 *cqe, wc->dlid_path_bits = cqe->ml_path; g = (be32_to_cpu(cqe->flags_rqpn) >> 28) & 3; wc->wc_flags |= g ? IB_WC_GRH : 0; - wc->pkey_index = be32_to_cpu(cqe->imm_inval_pkey) & 0xffff; + if (unlikely(is_qp1(qp->ibqp.qp_type))) { + u16 pkey = be32_to_cpu(cqe->imm_inval_pkey) & 0xffff; + + ib_find_cached_pkey(&dev->ib_dev, qp->port, pkey, + &wc->pkey_index); + } else { + wc->pkey_index = 0; + } } static void dump_cqe(struct mlx5_ib_dev *dev, struct mlx5_err_cqe *cqe) |