diff mbox series

[v2,4/6] crypto/mlx5: fix size of UMR WQE

Message ID 20211017094133.18988-5-talshn@nvidia.com (mailing list archive)
State Superseded, archived
Delegated to: akhil goyal
Headers
Series Support MLX5 crypto driver on Windows |

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Tal Shnaiderman Oct. 17, 2021, 9:41 a.m. UTC 
  The size of the UMR WQE allocated object is decided by a sizof
operation on the struct, however since the struct contains
a union of flexible array members this sizeof results can differ
between compilers.

GCC for example treats the union as 0 sized, MSVC adds a padding
of 16Bits.

To resolve the ambiguity the allocation size will be calculated
by the sizes of the members excluding the flexible union.

Fixes: a1978aa23bf4 ("crypto/mlx5: add maximum segments configuration")
Cc: stable@dpdk.org

Signed-off-by: Tal Shnaiderman <talshn@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
---
 drivers/crypto/mlx5/mlx5_crypto.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/crypto/mlx5/mlx5_crypto.c b/drivers/crypto/mlx5/mlx5_crypto.c
index 11cbc78586..7192fa661e 100644
--- a/drivers/crypto/mlx5/mlx5_crypto.c
+++ b/drivers/crypto/mlx5/mlx5_crypto.c
@@ -959,7 +959,9 @@  mlx5_crypto_dev_probe(struct mlx5_common_device *cdev)
 	priv->keytag = rte_cpu_to_be_64(devarg_prms.keytag);
 	priv->max_segs_num = devarg_prms.max_segs_num;
 	priv->umr_wqe_size = sizeof(struct mlx5_wqe_umr_bsf_seg) +
-			     sizeof(struct mlx5_umr_wqe) +
+			     sizeof(struct mlx5_wqe_cseg) +
+			     sizeof(struct mlx5_wqe_umr_cseg) +
+			     sizeof(struct mlx5_wqe_mkey_cseg) +
 			     RTE_ALIGN(priv->max_segs_num, 4) *
 			     sizeof(struct mlx5_wqe_dseg);
 	rdmw_wqe_size = sizeof(struct mlx5_rdma_write_wqe) +