mlx5_core: Store MR attributes in mlx5_mr_core during creation and af…

…ter 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>

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);

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);
 

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 {