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-rw-r--r--drivers/infiniband/hw/mlx5/mr.c11
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 06e33e6cb07f..154241290f5c 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -42,6 +42,10 @@ enum {
DEF_CACHE_SIZE = 10,
};
+enum {
+ MLX5_UMR_ALIGN = 2048
+};
+
static __be64 *mr_align(__be64 *ptr, int align)
{
unsigned long mask = align - 1;
@@ -671,12 +675,12 @@ 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 + 0x3f, GFP_KERNEL);
+ mr->pas = kmalloc(size + MLX5_UMR_ALIGN - 1, GFP_KERNEL);
if (!mr->pas) {
err = -ENOMEM;
goto error;
}
- mr->dma = dma_map_single(ddev, mr_align(mr->pas, 0x40), size,
+ mr->dma = dma_map_single(ddev, mr_align(mr->pas, MLX5_UMR_ALIGN), size,
DMA_TO_DEVICE);
if (dma_mapping_error(ddev, mr->dma)) {
kfree(mr->pas);
@@ -684,7 +688,8 @@ static struct mlx5_ib_mr *reg_umr(struct ib_pd *pd, struct ib_umem *umem,
goto error;
}
- mlx5_ib_populate_pas(dev, umem, page_shift, mr_align(mr->pas, 0x40), 1);
+ mlx5_ib_populate_pas(dev, umem, page_shift,
+ mr_align(mr->pas, MLX5_UMR_ALIGN), 1);
memset(&wr, 0, sizeof(wr));
wr.wr_id = (u64)(unsigned long)mr;