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| author | Haggai Eran <haggaie@mellanox.com> | 2014-12-11 17:04:10 +0200 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2014-12-15 18:13:35 -0800 |
| commit | 21af2c3ebfd551660ae0016ecc5bc9afcc24f116 (patch) | |
| tree | 769ad4c07f00df2c4f55d0a330a2d38e001b762c /drivers/infiniband/hw/mlx5/mr.c | |
| parent | 70e71ca0af244f48a5dcf56dc435243792e3a495 (diff) | |
| download | blackbird-op-linux-21af2c3ebfd551660ae0016ecc5bc9afcc24f116.tar.gz blackbird-op-linux-21af2c3ebfd551660ae0016ecc5bc9afcc24f116.zip | |
IB/mlx5: Remove per-MR pas and dma pointers
Since UMR code now uses its own context struct on the stack, the pas
and dma pointers for the UMR operation that remained in the mlx5_ib_mr
struct are not necessary. This patch removes them.
Fixes: a74d24168d2d ("IB/mlx5: Refactor UMR to have its own context struct")
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/mr.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mr.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c index 5a80dd993761..2ab081cdbca0 100644 --- a/drivers/infiniband/hw/mlx5/mr.c +++ b/drivers/infiniband/hw/mlx5/mr.c @@ -743,6 +743,8 @@ static struct mlx5_ib_mr *reg_umr(struct ib_pd *pd, struct ib_umem *umem, struct mlx5_ib_mr *mr; struct ib_sge sg; int size = sizeof(u64) * npages; + __be64 *mr_pas; + dma_addr_t dma; int err = 0; int i; @@ -761,25 +763,26 @@ static struct mlx5_ib_mr *reg_umr(struct ib_pd *pd, struct ib_umem *umem, if (!mr) return ERR_PTR(-EAGAIN); - mr->pas = kmalloc(size + MLX5_UMR_ALIGN - 1, GFP_KERNEL); - if (!mr->pas) { + mr_pas = kmalloc(size + MLX5_UMR_ALIGN - 1, GFP_KERNEL); + if (!mr_pas) { err = -ENOMEM; goto free_mr; } mlx5_ib_populate_pas(dev, umem, page_shift, - mr_align(mr->pas, MLX5_UMR_ALIGN), 1); + mr_align(mr_pas, MLX5_UMR_ALIGN), 1); - mr->dma = dma_map_single(ddev, mr_align(mr->pas, MLX5_UMR_ALIGN), size, - DMA_TO_DEVICE); - if (dma_mapping_error(ddev, mr->dma)) { + dma = dma_map_single(ddev, mr_align(mr_pas, MLX5_UMR_ALIGN), size, + DMA_TO_DEVICE); + if (dma_mapping_error(ddev, dma)) { err = -ENOMEM; goto free_pas; } memset(&wr, 0, sizeof(wr)); wr.wr_id = (u64)(unsigned long)&umr_context; - prep_umr_reg_wqe(pd, &wr, &sg, mr->dma, npages, mr->mmr.key, page_shift, virt_addr, len, access_flags); + prep_umr_reg_wqe(pd, &wr, &sg, dma, npages, mr->mmr.key, page_shift, + virt_addr, len, access_flags); mlx5_ib_init_umr_context(&umr_context); down(&umrc->sem); @@ -801,10 +804,10 @@ static struct mlx5_ib_mr *reg_umr(struct ib_pd *pd, struct ib_umem *umem, unmap_dma: up(&umrc->sem); - dma_unmap_single(ddev, mr->dma, size, DMA_TO_DEVICE); + dma_unmap_single(ddev, dma, size, DMA_TO_DEVICE); free_pas: - kfree(mr->pas); + kfree(mr_pas); free_mr: if (err) { |
