diff options
| author | Sean Hefty <sean.hefty@intel.com> | 2011-06-02 21:43:26 +0400 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2011-10-13 20:43:46 +0400 |
| commit | 18abd5ea571608a7c726fc56e21d3e31f9febfd0 (patch) | |
| tree | e2694cadf06a995e658ec30f7a3bd22835dcda7a /drivers/infiniband/hw/mlx4/srq.c | |
| parent | 012a8ff577f95211c6ffd3b77a94c34ebae009b6 (diff) | |
| download | linux-18abd5ea571608a7c726fc56e21d3e31f9febfd0.tar.xz | |
IB/mlx4: Add support for XRC SRQs
Allow the user to create XRC SRQs. This patch is based on a patch
from Jack Morgenstrein <jackm@dev.mellanox.co.il>.
Signed-off-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx4/srq.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/srq.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/mlx4/srq.c b/drivers/infiniband/hw/mlx4/srq.c index 4f7f7600d27c..39542f3703b8 100644 --- a/drivers/infiniband/hw/mlx4/srq.c +++ b/drivers/infiniband/hw/mlx4/srq.c @@ -76,14 +76,13 @@ struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd, struct mlx4_ib_srq *srq; struct mlx4_wqe_srq_next_seg *next; struct mlx4_wqe_data_seg *scatter; + u32 cqn; + u16 xrcdn; int desc_size; int buf_size; int err; int i; - if (init_attr->srq_type != IB_SRQT_BASIC) - return ERR_PTR(-ENOSYS); - /* Sanity check SRQ size before proceeding */ if (init_attr->attr.max_wr >= dev->dev->caps.max_srq_wqes || init_attr->attr.max_sge > dev->dev->caps.max_srq_sge) @@ -177,12 +176,18 @@ struct ib_srq *mlx4_ib_create_srq(struct ib_pd *pd, } } - err = mlx4_srq_alloc(dev->dev, to_mpd(pd)->pdn, &srq->mtt, + cqn = (init_attr->srq_type == IB_SRQT_XRC) ? + to_mcq(init_attr->ext.xrc.cq)->mcq.cqn : 0; + xrcdn = (init_attr->srq_type == IB_SRQT_XRC) ? + to_mxrcd(init_attr->ext.xrc.xrcd)->xrcdn : + (u16) dev->dev->caps.reserved_xrcds; + err = mlx4_srq_alloc(dev->dev, to_mpd(pd)->pdn, cqn, xrcdn, &srq->mtt, srq->db.dma, &srq->msrq); if (err) goto err_wrid; srq->msrq.event = mlx4_ib_srq_event; + srq->ibsrq.ext.xrc.srq_num = srq->msrq.srqn; if (pd->uobject) if (ib_copy_to_udata(udata, &srq->msrq.srqn, sizeof (__u32))) { |