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IB/mlx5: Report and handle ODP support properly 

ODP depends on the several device capabilities, among them is the ability
to send UMR WQEs with that modify atomic and entity size of the MR.
Therefore, only if all conditions to send such a UMR WQE are met then
driver can report that ODP is supported. Use this check of conditions
in all places where driver needs to know about ODP support.

Also, implicit ODP support depends on ability of driver to send UMR WQEs
for an indirect mkey. Therefore, verify that all conditions to do so are
met when reporting support.

Fixes: c8d75a980f ("IB/mlx5: Respect new UMR capabilities")
Signed-off-by: Moni Shoua <monis@mellanox.com>
Reviewed-by: Guy Levi <guyle@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Link: https://lore.kernel.org/r/20190815083834.9245-7-leon@kernel.org
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Moni Shoua 2019-08-15 11:38:32 +03:00 committed by Doug Ledford
parent 0e6613b41e
commit 008157528a
2 changed files with 12 additions and 11 deletions
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6
drivers/infiniband/hw/mlx5/main.c
View File

@ -1023,7 +1023,7 @@ static int mlx5_ib_query_device(struct ib_device *ibdev,
props->timestamp_mask = 0x7FFFFFFFFFFFFFFFULL;
if (IS_ENABLED(CONFIG_INFINIBAND_ON_DEMAND_PAGING)) {
if (MLX5_CAP_GEN(mdev, pg))
if (dev->odp_caps.general_caps & IB_ODP_SUPPORT)
props->device_cap_flags |= IB_DEVICE_ON_DEMAND_PAGING;
props->odp_caps = dev->odp_caps;
}
@ -6139,6 +6139,8 @@ static int mlx5_ib_stage_init_init(struct mlx5_ib_dev *dev)
dev->port[i].roce.last_port_state = IB_PORT_DOWN;
}
mlx5_ib_internal_fill_odp_caps(dev);
err = mlx5_ib_init_multiport_master(dev);
if (err)
return err;
@ -6563,8 +6565,6 @@ static void mlx5_ib_stage_dev_res_cleanup(struct mlx5_ib_dev *dev)
static int mlx5_ib_stage_odp_init(struct mlx5_ib_dev *dev)
{
mlx5_ib_internal_fill_odp_caps(dev);
return mlx5_ib_odp_init_one(dev);
}

17
drivers/infiniband/hw/mlx5/odp.c
View File

@ -301,7 +301,8 @@ void mlx5_ib_internal_fill_odp_caps(struct mlx5_ib_dev *dev)
memset(caps, 0, sizeof(*caps));
if (!MLX5_CAP_GEN(dev->mdev, pg))
if (!MLX5_CAP_GEN(dev->mdev, pg) ||
!mlx5_ib_can_use_umr(dev, true))
return;
caps->general_caps = IB_ODP_SUPPORT;
@ -355,7 +356,8 @@ void mlx5_ib_internal_fill_odp_caps(struct mlx5_ib_dev *dev)
if (MLX5_CAP_GEN(dev->mdev, fixed_buffer_size) &&
MLX5_CAP_GEN(dev->mdev, null_mkey) &&
MLX5_CAP_GEN(dev->mdev, umr_extended_translation_offset))
MLX5_CAP_GEN(dev->mdev, umr_extended_translation_offset) &&
!MLX5_CAP_GEN(dev->mdev, umr_indirect_mkey_disabled))
caps->general_caps |= IB_ODP_SUPPORT_IMPLICIT;
return;
@ -1622,8 +1624,10 @@ int mlx5_ib_odp_init_one(struct mlx5_ib_dev *dev)
{
int ret = 0;
if (dev->odp_caps.general_caps & IB_ODP_SUPPORT)
ib_set_device_ops(&dev->ib_dev, &mlx5_ib_dev_odp_ops);
if (!(dev->odp_caps.general_caps & IB_ODP_SUPPORT))
return ret;
ib_set_device_ops(&dev->ib_dev, &mlx5_ib_dev_odp_ops);
if (dev->odp_caps.general_caps & IB_ODP_SUPPORT_IMPLICIT) {
ret = mlx5_cmd_null_mkey(dev->mdev, &dev->null_mkey);
@ -1633,9 +1637,6 @@ int mlx5_ib_odp_init_one(struct mlx5_ib_dev *dev)
}
}
if (!MLX5_CAP_GEN(dev->mdev, pg))
return ret;
ret = mlx5_ib_create_pf_eq(dev, &dev->odp_pf_eq);
return ret;
@ -1643,7 +1644,7 @@ int mlx5_ib_odp_init_one(struct mlx5_ib_dev *dev)
void mlx5_ib_odp_cleanup_one(struct mlx5_ib_dev *dev)
{
if (!MLX5_CAP_GEN(dev->mdev, pg))
if (!(dev->odp_caps.general_caps & IB_ODP_SUPPORT))
return;
mlx5_ib_destroy_pf_eq(dev, &dev->odp_pf_eq);