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| author |   Yuval Shaia <yuval.shaia@oracle.com> | 2018-12-11 10:36:47 +0200 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2018-12-18 14:24:34 -0700 |
| commit | 350b4c8ac1b4c07909ab7f8ad4303fff2505ab7c (patch) | |
| tree | e639558f7af77c1bd6ec892b703754acb1ff94b5 | |
| parent | RDMA/hns: Fix an error code in hns_roce_create_srq() (diff) | |
| download | linux-dev-350b4c8ac1b4c07909ab7f8ad4303fff2505ab7c.tar.xz linux-dev-350b4c8ac1b4c07909ab7f8ad4303fff2505ab7c.zip | |
IB/mlx4: Utilize macro to calculate SQ spare size
The macro MLX4_IB_SQ_HEADROOM calculates the spare room needed to be
left. Use it instead of hard-coding the HW prefetch size.
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
| -rw-r--r-- | drivers/infiniband/hw/mlx4/qp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c index 74ef7a0ec0b7..651d8594dc3f 100644 --- a/drivers/infiniband/hw/mlx4/qp.c +++ b/drivers/infiniband/hw/mlx4/qp.c @@ -401,7 +401,7 @@ static int set_kernel_sq_size(struct mlx4_ib_dev *dev, struct ib_qp_cap *cap, * We need to leave 2 KB + 1 WR of headroom in the SQ to * allow HW to prefetch. */ - qp->sq_spare_wqes = (2048 >> qp->sq.wqe_shift) + 1; + qp->sq_spare_wqes = MLX4_IB_SQ_HEADROOM(qp->sq.wqe_shift); qp->sq.wqe_cnt = roundup_pow_of_two(cap->max_send_wr + qp->sq_spare_wqes); |