[PATCH net-next 12/18] net/mlx5e: TLS, add innova rx support
From: Boris Pismenny <hidden>
Date: 2018-07-04 13:32:48
Subsystem:
mellanox ethernet driver (mlx5e), mellanox ethernet innova drivers, mellanox mlx5 core vpi driver, networking drivers, the rest · Maintainers:
Saeed Mahameed, Tariq Toukan, Mark Bloch, Leon Romanovsky, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Add the mlx5 implementation of the TLS Rx routines to add/del TLS contexts, also add the tls_dev_resync_rx routine to work with the TLS inline Rx crypto offload infrastructure. Signed-off-by: Boris Pismenny <redacted> Signed-off-by: Ilya Lesokhin <redacted> Reviewed-by: Aviad Yehezkel <redacted> Reviewed-by: Tariq Toukan <redacted> --- .../net/ethernet/mellanox/mlx5/core/en_accel/tls.c | 46 +++++++++++++++------- .../net/ethernet/mellanox/mlx5/core/en_accel/tls.h | 15 +++++++ 2 files changed, 46 insertions(+), 15 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 7fb9c75..68368c9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c@@ -110,9 +110,7 @@ static int mlx5e_tls_add(struct net_device *netdev, struct sock *sk, u32 caps = mlx5_accel_tls_device_caps(mdev); int ret = -ENOMEM; void *flow; - - if (direction != TLS_OFFLOAD_CTX_DIR_TX) - return -EINVAL; + u32 swid; flow = kzalloc(MLX5_ST_SZ_BYTES(tls_flow), GFP_KERNEL); if (!flow)
@@ -122,18 +120,23 @@ static int mlx5e_tls_add(struct net_device *netdev, struct sock *sk, if (ret) goto free_flow; + ret = mlx5_accel_tls_add_flow(mdev, flow, crypto_info, + start_offload_tcp_sn, &swid, + direction == TLS_OFFLOAD_CTX_DIR_TX); + if (ret < 0) + goto free_flow; + if (direction == TLS_OFFLOAD_CTX_DIR_TX) { struct mlx5e_tls_offload_context_tx *tx_ctx = mlx5e_get_tls_tx_context(tls_ctx); - u32 swid; - - ret = mlx5_accel_tls_add_tx_flow(mdev, flow, crypto_info, - start_offload_tcp_sn, &swid); - if (ret < 0) - goto free_flow; tx_ctx->swid = htonl(swid); tx_ctx->expected_seq = start_offload_tcp_sn; + } else { + struct mlx5e_tls_offload_context_rx *rx_ctx = + mlx5e_get_tls_rx_context(tls_ctx); + + rx_ctx->handle = htonl(swid); } return 0;
@@ -147,19 +150,32 @@ static void mlx5e_tls_del(struct net_device *netdev, enum tls_offload_ctx_dir direction) { struct mlx5e_priv *priv = netdev_priv(netdev); + unsigned int handle; - if (direction == TLS_OFFLOAD_CTX_DIR_TX) { - u32 swid = ntohl(mlx5e_get_tls_tx_context(tls_ctx)->swid); + handle = ntohl((direction == TLS_OFFLOAD_CTX_DIR_TX) ? + mlx5e_get_tls_tx_context(tls_ctx)->swid : + mlx5e_get_tls_rx_context(tls_ctx)->handle); - mlx5_accel_tls_del_tx_flow(priv->mdev, swid); - } else { - netdev_err(netdev, "unsupported direction %d\n", direction); - } + mlx5_accel_tls_del_flow(priv->mdev, handle, + direction == TLS_OFFLOAD_CTX_DIR_TX); +} + +static void mlx5e_tls_resync_rx(struct net_device *netdev, struct sock *sk, + u32 seq, u64 rcd_sn) +{ + struct tls_context *tls_ctx = tls_get_ctx(sk); + struct mlx5e_priv *priv = netdev_priv(netdev); + struct mlx5e_tls_offload_context_rx *rx_ctx; + + rx_ctx = mlx5e_get_tls_rx_context(tls_ctx); + + mlx5_accel_tls_resync_rx(priv->mdev, rx_ctx->handle, seq, rcd_sn); } static const struct tlsdev_ops mlx5e_tls_ops = { .tls_dev_add = mlx5e_tls_add, .tls_dev_del = mlx5e_tls_del, + .tls_dev_resync_rx = mlx5e_tls_resync_rx, }; void mlx5e_tls_build_netdev(struct mlx5e_priv *priv)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.h b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.h
index e26222a..2d40ede 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.h@@ -65,6 +65,21 @@ struct mlx5e_tls_offload_context_tx { base); } +struct mlx5e_tls_offload_context_rx { + struct tls_offload_context_rx base; + __be32 handle; +}; + +static inline struct mlx5e_tls_offload_context_rx * +mlx5e_get_tls_rx_context(struct tls_context *tls_ctx) +{ + BUILD_BUG_ON(sizeof(struct mlx5e_tls_offload_context_rx) > + TLS_OFFLOAD_CONTEXT_SIZE_RX); + return container_of(tls_offload_ctx_rx(tls_ctx), + struct mlx5e_tls_offload_context_rx, + base); +} + void mlx5e_tls_build_netdev(struct mlx5e_priv *priv); int mlx5e_tls_init(struct mlx5e_priv *priv); void mlx5e_tls_cleanup(struct mlx5e_priv *priv);
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1.8.3.1