diff options
| author |   Leon Romanovsky <leonro@mellanox.com> | 2015-12-20 12:16:11 +0200 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2015-12-23 23:33:14 -0500 |
| commit | 051f263098a90d208e2d20251bfd4834bc783214 (patch) | |
| tree | 0993c06cb278638d32adb2995812608fa4ca47e8 /drivers/infiniband/hw/mlx5/cq.c | |
| parent | IB/core: Add cross-channel support (diff) | |
| download | linux-dev-051f263098a90d208e2d20251bfd4834bc783214.tar.xz linux-dev-051f263098a90d208e2d20251bfd4834bc783214.zip | |
IB/mlx5: Add driver cross-channel support
Add support of cross-channel functionality to mlx5
driver. This includes ability to ignore overrun for CQ
which intended for cross-channel, export device capability and
configure the QP to be sync master/slave queues.
The cross-channel enabled QP supports combination of
three possible properties:
* WQE processing on the receive queue of this QP
* WQE processing on the send queue of this QP
* WQE are supported on the send queue
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@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 | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c index bc21ad8ebffd..b14316603e44 100644 --- a/drivers/infiniband/hw/mlx5/cq.c +++ b/drivers/infiniband/hw/mlx5/cq.c @@ -778,7 +778,7 @@ struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev, int eqn; int err; - if (attr->flags) + if (check_cq_create_flags(attr->flags)) return ERR_PTR(-EINVAL); if (entries < 0) @@ -800,6 +800,7 @@ struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev, spin_lock_init(&cq->lock); cq->resize_buf = NULL; cq->resize_umem = NULL; + cq->create_flags = attr->flags; if (context) { err = create_cq_user(dev, udata, context, cq, entries, @@ -817,6 +818,10 @@ struct ib_cq *mlx5_ib_create_cq(struct ib_device *ibdev, cq->cqe_size = cqe_size; cqb->ctx.cqe_sz_flags = cqe_sz_to_mlx_sz(cqe_size) << 5; + + if (cq->create_flags & IB_CQ_FLAGS_IGNORE_OVERRUN) + cqb->ctx.cqe_sz_flags |= (1 << 1); + cqb->ctx.log_sz_usr_page = cpu_to_be32((ilog2(entries) << 24) | index); err = mlx5_vector2eqn(dev->mdev, vector, &eqn, &irqn); if (err) |