diff options
| author | Ron Livne <ronli@voltaire.com> | 2008-07-14 23:48:48 -0700 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-07-14 23:48:48 -0700 |
| commit | 521e575b9a7324a0bca762622139f69582a042bf (patch) | |
| tree | 5962695835c6d11b424d76c64421ebd436b52a34 /drivers/infiniband/hw/mlx4/qp.c | |
| parent | 47ee1b9f2e7bf73950602efe0b74fa1a8481f222 (diff) | |
IB/mlx4: Add support for blocking multicast loopback packets
Add support for handling the IB_QP_CREATE_MULTICAST_BLOCK_LOOPBACK
flag by using the per-multicast group loopback blocking feature of
mlx4 hardware.
Signed-off-by: Ron Livne <ronli@voltaire.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx4/qp.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/qp.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 44bbd6c2e315..91590e7fba0c 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -511,6 +511,9 @@ static int create_qp_common(struct mlx4_ib_dev *dev, struct ib_pd *pd, } else { qp->sq_no_prefetch = 0; + if (init_attr->create_flags & IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK) + qp->flags |= MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK; + if (init_attr->create_flags & IB_QP_CREATE_IPOIB_UD_LSO) qp->flags |= MLX4_IB_QP_LSO; @@ -684,10 +687,15 @@ struct ib_qp *mlx4_ib_create_qp(struct ib_pd *pd, struct mlx4_ib_qp *qp; int err; - /* We only support LSO, and only for kernel UD QPs. */ - if (init_attr->create_flags & ~IB_QP_CREATE_IPOIB_UD_LSO) + /* + * We only support LSO and multicast loopback blocking, and + * only for kernel UD QPs. + */ + if (init_attr->create_flags & ~(IB_QP_CREATE_IPOIB_UD_LSO | + IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK)) return ERR_PTR(-EINVAL); - if (init_attr->create_flags & IB_QP_CREATE_IPOIB_UD_LSO && + + if (init_attr->create_flags && (pd->uobject || init_attr->qp_type != IB_QPT_UD)) return ERR_PTR(-EINVAL); @@ -1844,6 +1852,13 @@ done: qp_init_attr->cap = qp_attr->cap; + qp_init_attr->create_flags = 0; + if (qp->flags & MLX4_IB_QP_BLOCK_MULTICAST_LOOPBACK) + qp_init_attr->create_flags |= IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK; + + if (qp->flags & MLX4_IB_QP_LSO) + qp_init_attr->create_flags |= IB_QP_CREATE_IPOIB_UD_LSO; + out: mutex_unlock(&qp->mutex); return err; |