diff options
| author | Artemy Kovalyov | 2017-01-02 11:37:43 +0200 |
|---|---|---|
| committer | David S. Miller | 2017-01-02 15:51:20 -0500 |
| commit | c438fde1c288a754aa5d22e3668f03a1dde18335 (patch) | |
| tree | 50a2a9c5595098f5315068505e1e25312f60d345 /drivers/infiniband | |
| parent | 3161625589c1d7c54e949d462f4d0c327664881a (diff) | |
IB/mlx5: Add support for big MRs
Make use of extended UMR translation offset.
Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mlx5_ib.h | 1 | ||||
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mr.c | 8 | ||||
| -rw-r--r-- | drivers/infiniband/hw/mlx5/odp.c | 5 |
3 files changed, 11 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h index d79580dcf20f..73bff77ab20c 100644 --- a/drivers/infiniband/hw/mlx5/mlx5_ib.h +++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h @@ -634,6 +634,7 @@ struct mlx5_ib_dev { int fill_delay; #ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING struct ib_odp_caps odp_caps; + u64 odp_max_size; /* * Sleepable RCU that prevents destruction of MRs while they are still * being used by a page fault handler. diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c index be8d38d7ca12..4d40fe0556bd 100644 --- a/drivers/infiniband/hw/mlx5/mr.c +++ b/drivers/infiniband/hw/mlx5/mr.c @@ -1121,8 +1121,9 @@ static struct mlx5_ib_mr *reg_create(struct ib_mr *ibmr, struct ib_pd *pd, goto err_1; } pas = (__be64 *)MLX5_ADDR_OF(create_mkey_in, in, klm_pas_mtt); - mlx5_ib_populate_pas(dev, umem, page_shift, pas, - pg_cap ? MLX5_IB_MTT_PRESENT : 0); + if (!(access_flags & IB_ACCESS_ON_DEMAND)) + mlx5_ib_populate_pas(dev, umem, page_shift, pas, + pg_cap ? MLX5_IB_MTT_PRESENT : 0); /* The pg_access bit allows setting the access flags * in the page list submitted with the command. */ @@ -1210,7 +1211,8 @@ struct ib_mr *mlx5_ib_reg_user_mr(struct ib_pd *pd, u64 start, u64 length, mlx5_ib_dbg(dev, "cache empty for order %d", order); mr = NULL; } - } else if (access_flags & IB_ACCESS_ON_DEMAND) { + } else if (access_flags & IB_ACCESS_ON_DEMAND && + !MLX5_CAP_GEN(dev->mdev, umr_extended_translation_offset)) { err = -EINVAL; pr_err("Got MR registration for ODP MR > 512MB, not supported for Connect-IB"); goto error; diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c index 67651eca59c5..1e73c127feb7 100644 --- a/drivers/infiniband/hw/mlx5/odp.c +++ b/drivers/infiniband/hw/mlx5/odp.c @@ -121,6 +121,11 @@ void mlx5_ib_internal_fill_odp_caps(struct mlx5_ib_dev *dev) caps->general_caps = IB_ODP_SUPPORT; + if (MLX5_CAP_GEN(dev->mdev, umr_extended_translation_offset)) + dev->odp_max_size = U64_MAX; + else + dev->odp_max_size = BIT_ULL(MLX5_MAX_UMR_SHIFT + PAGE_SHIFT); + if (MLX5_CAP_ODP(dev->mdev, ud_odp_caps.send)) caps->per_transport_caps.ud_odp_caps |= IB_ODP_SUPPORT_SEND; |