net/tls: pass record number as a byte array

TLS offload code casts record number to a u64.  The buffer
should be aligned to 8 bytes, but its actually a __be64, and
the rest of the TLS code treats it as big int.  Make the
offload callbacks take a byte array, drivers can make the
choice to do the ugly cast if they want to.

Prepare for copying the record number onto the stack by
defining a constant for max size of the byte array.

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c
index e88340e196f7..d65150aa8298 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c
@@ -161,11 +161,12 @@ static void mlx5e_tls_del(struct net_device *netdev,
 }
 
 static void mlx5e_tls_resync_rx(struct net_device *netdev, struct sock *sk,
-				u32 seq, u64 rcd_sn)
+				u32 seq, u8 *rcd_sn_data)
 {
 	struct tls_context *tls_ctx = tls_get_ctx(sk);
 	struct mlx5e_priv *priv = netdev_priv(netdev);
 	struct mlx5e_tls_offload_context_rx *rx_ctx;
+	u64 rcd_sn = *(u64 *)rcd_sn_data;
 
 	rx_ctx = mlx5e_get_tls_rx_context(tls_ctx);