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| author | Artemy Kovalyov <artemyko@mellanox.com> | 2017-01-02 11:37:44 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-01-02 15:51:20 -0500 |
| commit | 7d0cc6edcc7011133c45f62a7796a98b8cb5da0f (patch) | |
| tree | 1f6f71e23526b24f45f53aabcc32d91f192b6986 /drivers/infiniband/hw/mlx5/odp.c | |
| parent | c438fde1c288a754aa5d22e3668f03a1dde18335 (diff) | |
| download | op-kernel-dev-7d0cc6edcc7011133c45f62a7796a98b8cb5da0f.zip op-kernel-dev-7d0cc6edcc7011133c45f62a7796a98b8cb5da0f.tar.gz | |
IB/mlx5: Add MR cache for large UMR regions
In this change we turn mlx5_ib_update_mtt() into generic
mlx5_ib_update_xlt() to perfrom HCA translation table modifiactions
supporting both atomic and process contexts and not limited by number
of modified entries.
Using this function we increase preallocated MRs up to 16GB.
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/hw/mlx5/odp.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/odp.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c index 1e73c12..cfd7ee5 100644 --- a/drivers/infiniband/hw/mlx5/odp.c +++ b/drivers/infiniband/hw/mlx5/odp.c @@ -91,16 +91,21 @@ void mlx5_ib_invalidate_range(struct ib_umem *umem, unsigned long start, u64 umr_offset = idx & umr_block_mask; if (in_block && umr_offset == 0) { - mlx5_ib_update_mtt(mr, blk_start_idx, - idx - blk_start_idx, 1); + mlx5_ib_update_xlt(mr, blk_start_idx, + idx - blk_start_idx, + PAGE_SHIFT, + MLX5_IB_UPD_XLT_ZAP | + MLX5_IB_UPD_XLT_ATOMIC); in_block = 0; } } } if (in_block) - mlx5_ib_update_mtt(mr, blk_start_idx, idx - blk_start_idx + 1, - 1); - + mlx5_ib_update_xlt(mr, blk_start_idx, + idx - blk_start_idx + 1, + PAGE_SHIFT, + MLX5_IB_UPD_XLT_ZAP | + MLX5_IB_UPD_XLT_ATOMIC); /* * We are now sure that the device will not access the * memory. We can safely unmap it, and mark it as dirty if @@ -257,7 +262,9 @@ static int pagefault_single_data_segment(struct mlx5_ib_qp *qp, * this MR, since ib_umem_odp_map_dma_pages already * checks this. */ - ret = mlx5_ib_update_mtt(mr, start_idx, npages, 0); + ret = mlx5_ib_update_xlt(mr, start_idx, npages, + PAGE_SHIFT, + MLX5_IB_UPD_XLT_ATOMIC); } else { ret = -EAGAIN; } |
