| Message ID | 1457005071-4900-1-git-send-email-sagig@mellanox.com (mailing list archive) |
|---|---|
| State | Accepted |
| Headers | show |
On 03/03/2016 06:37 AM, Sagi Grimberg wrote: > While documentation indicates that the number of translation > entries per memory key is unlimited, in practice, we can > only fit a finite amount of translation entries in a single > registration wqe (which is log_max_klm_list_size). > > Signed-off-by: Sagi Grimberg <sagig@mellanox.com> > --- > drivers/infiniband/hw/mlx5/main.c | 3 ++- > 1 files changed, 2 insertions(+), 1 deletions(-) > > diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c > index 90c5e24..136ed67 100644 > --- a/drivers/infiniband/hw/mlx5/main.c > +++ b/drivers/infiniband/hw/mlx5/main.c > @@ -536,7 +536,8 @@ static int mlx5_ib_query_device(struct ib_device *ibdev, > props->local_ca_ack_delay = MLX5_CAP_GEN(mdev, local_ca_ack_delay); > props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; > props->max_srq_sge = max_rq_sg - 1; > - props->max_fast_reg_page_list_len = (unsigned int)-1; > + props->max_fast_reg_page_list_len = > + 1 << MLX5_CAP_GEN(mdev, log_max_klm_list_size); > get_atomic_caps(dev, props); > props->masked_atomic_cap = IB_ATOMIC_NONE; > props->max_mcast_grp = 1 << MLX5_CAP_GEN(mdev, log_max_mcg); > Thanks, applied.
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index 90c5e24..136ed67 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -536,7 +536,8 @@ static int mlx5_ib_query_device(struct ib_device *ibdev, props->local_ca_ack_delay = MLX5_CAP_GEN(mdev, local_ca_ack_delay); props->max_res_rd_atom = props->max_qp_rd_atom * props->max_qp; props->max_srq_sge = max_rq_sg - 1; - props->max_fast_reg_page_list_len = (unsigned int)-1; + props->max_fast_reg_page_list_len = + 1 << MLX5_CAP_GEN(mdev, log_max_klm_list_size); get_atomic_caps(dev, props); props->masked_atomic_cap = IB_ATOMIC_NONE; props->max_mcast_grp = 1 << MLX5_CAP_GEN(mdev, log_max_mcg);
While documentation indicates that the number of translation entries per memory key is unlimited, in practice, we can only fit a finite amount of translation entries in a single registration wqe (which is log_max_klm_list_size). Signed-off-by: Sagi Grimberg <sagig@mellanox.com> --- drivers/infiniband/hw/mlx5/main.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)