net/mlx5e: kTLS, Save a copy of the crypto info

Do not assume the crypto info is accessible during the
connection lifetime. Save a copy of it in the private
TX context.

Fixes: d2ead1f360e8 ("net/mlx5e: Add kTLS TX HW offload support")
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c
index d2ff74d..46725cd 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c
@@ -38,7 +38,7 @@ static int mlx5e_ktls_add(struct net_device *netdev, struct sock *sk,
                return -ENOMEM;
 
        tx_priv->expected_seq = start_offload_tcp_sn;
-       tx_priv->crypto_info  = crypto_info;
+       tx_priv->crypto_info  = *(struct tls12_crypto_info_aes_gcm_128 *)crypto_info;
        mlx5e_set_ktls_tx_priv_ctx(tls_ctx, tx_priv);
 
        /* tc and underlay_qpn values are not in use for tls tis */

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.h b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.h
index 929966e..a3efa29 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.h
@@ -44,7 +44,7 @@ enum {
 
 struct mlx5e_ktls_offload_context_tx {
        struct tls_offload_context_tx *tx_ctx;
-       struct tls_crypto_info *crypto_info;
+       struct tls12_crypto_info_aes_gcm_128 crypto_info;
        u32 expected_seq;
        u32 tisn;
        u32 key_id;

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
index 1bfeb55..badc6fd 100644 (file)
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c
@@ -24,14 +24,12 @@ enum {
 static void
 fill_static_params_ctx(void *ctx, struct mlx5e_ktls_offload_context_tx *priv_tx)
 {
-       struct tls_crypto_info *crypto_info = priv_tx->crypto_info;
-       struct tls12_crypto_info_aes_gcm_128 *info;
+       struct tls12_crypto_info_aes_gcm_128 *info = &priv_tx->crypto_info;
        char *initial_rn, *gcm_iv;
        u16 salt_sz, rec_seq_sz;
        char *salt, *rec_seq;
        u8 tls_version;
 
-       info = (struct tls12_crypto_info_aes_gcm_128 *)crypto_info;
        EXTRACT_INFO_FIELDS;
 
        gcm_iv      = MLX5_ADDR_OF(tls_static_params, ctx, gcm_iv);
@@ -233,14 +231,12 @@ tx_post_resync_params(struct mlx5e_txqsq *sq,
                      struct mlx5e_ktls_offload_context_tx *priv_tx,
                      u64 rcd_sn)
 {
-       struct tls_crypto_info *crypto_info = priv_tx->crypto_info;
-       struct tls12_crypto_info_aes_gcm_128 *info;
+       struct tls12_crypto_info_aes_gcm_128 *info = &priv_tx->crypto_info;
        __be64 rn_be = cpu_to_be64(rcd_sn);
        bool skip_static_post;
        u16 rec_seq_sz;
        char *rec_seq;
 
-       info = (struct tls12_crypto_info_aes_gcm_128 *)crypto_info;
        rec_seq = info->rec_seq;
        rec_seq_sz = sizeof(info->rec_seq);