mlx5_core: Store MR attributes in mlx5_mr_core during creation and after UMR

The patch stores iova, pd and size during mr creation and after UMRs
that modify them.  It removes the unused access flags field.

Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

3 files changed, 8 insertions, 1 deletions

diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 9d932a2aa9f4..f472ab246d94 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -794,6 +794,10 @@ static struct mlx5_ib_mr *reg_umr(struct ib_pd *pd, struct ib_umem *umem,
                 err = -EFAULT;
         }
 
+        mr->mmr.iova = virt_addr;
+        mr->mmr.size = len;
+        mr->mmr.pd = to_mpd(pd)->pdn;
+
 unmap_dma:
         up(&umrc->sem);
         dma_unmap_single(ddev, mr->dma, size, DMA_TO_DEVICE);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/mr.c b/drivers/net/ethernet/mellanox/mlx5/core/mr.c
index 4cc927649404..ac52a0fe2d3a 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/mr.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/mr.c
@@ -82,7 +82,11 @@ int mlx5_core_create_mkey(struct mlx5_core_dev *dev, struct mlx5_core_mr *mr,
                 return mlx5_cmd_status_to_err(&lout.hdr);
         }
 
+        mr->iova = be64_to_cpu(in->seg.start_addr);
+        mr->size = be64_to_cpu(in->seg.len);
         mr->key = mlx5_idx_to_mkey(be32_to_cpu(lout.mkey) & 0xffffff) | key;
+        mr->pd = be32_to_cpu(in->seg.flags_pd) & 0xffffff;
+
         mlx5_core_dbg(dev, "out 0x%x, key 0x%x, mkey 0x%x\n",
                       be32_to_cpu(lout.mkey), key, mr->key);
 
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 93cef6313e72..2bce4aad2570 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -427,7 +427,6 @@ struct mlx5_core_mr {
         u64                     size;
         u32                     key;
         u32                     pd;
-        u32                     access;
 };
 
 struct mlx5_core_srq {