diff options
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/cq.c | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx5/cq.c b/drivers/infiniband/hw/mlx5/cq.c index b7262742974..b4c122eab48 100644 --- a/drivers/infiniband/hw/mlx5/cq.c +++ b/drivers/infiniband/hw/mlx5/cq.c @@ -818,7 +818,31 @@ void mlx5_ib_cq_clean(struct mlx5_ib_cq *cq, u32 qpn, struct mlx5_ib_srq *srq) int mlx5_ib_modify_cq(struct ib_cq *cq, u16 cq_count, u16 cq_period) { - return -ENOSYS; + struct mlx5_modify_cq_mbox_in *in; + struct mlx5_ib_dev *dev = to_mdev(cq->device); + struct mlx5_ib_cq *mcq = to_mcq(cq); + int err; + u32 fsel; + + if (!(dev->mdev.caps.flags & MLX5_DEV_CAP_FLAG_CQ_MODER)) + return -ENOSYS; + + in = kzalloc(sizeof(*in), GFP_KERNEL); + if (!in) + return -ENOMEM; + + in->cqn = cpu_to_be32(mcq->mcq.cqn); + fsel = (MLX5_CQ_MODIFY_PERIOD | MLX5_CQ_MODIFY_COUNT); + in->ctx.cq_period = cpu_to_be16(cq_period); + in->ctx.cq_max_count = cpu_to_be16(cq_count); + in->field_select = cpu_to_be32(fsel); + err = mlx5_core_modify_cq(&dev->mdev, &mcq->mcq, in); + kfree(in); + + if (err) + mlx5_ib_warn(dev, "modify cq 0x%x failed\n", mcq->mcq.cqn); + + return err; } int mlx5_ib_resize_cq(struct ib_cq *ibcq, int entries, struct ib_udata *udata) |