diff options
author | Tariq Toukan <tariqt@mellanox.com> | 2020-05-26 13:58:09 +0300 |
---|---|---|
committer | Saeed Mahameed <saeedm@mellanox.com> | 2020-06-27 14:00:20 -0700 |
commit | 7d0d0d86ec6c67d3eb4f49d3bbccc2d8c02799cc (patch) | |
tree | 9371f15a71ef1f251eee425910b07d99c465a32b /drivers | |
parent | 5229a96e59ec32466add5e87b537cc3f244afb06 (diff) |
net/mlx5e: kTLS, Improve TLS feature modularity
Better separate the code into c/h files, so that kTLS internals
are exposed to the corresponding non-accel flow as follows:
- Necessary datapath functions are exposed via ktls_txrx.h.
- Necessary caps and configuration functions are exposed via ktls.h,
which became very small.
In addition, kTLS internal code sharing is done via ktls_utils.h,
which is not exposed to any non-accel file.
Add explicit WQE structures for the TLS static and progress
params, breaking the union of the static with UMR, and the progress
with PSV.
Generalize the API as a preparation for TLS RX offload support.
Move kTLS TX-specific code to the proper file.
Remove the inline tag for function in C files, let the compiler decide.
Use kzalloc/kfree for the priv_tx context.
Signed-off-by: Tariq Toukan <tariqt@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
Reviewed-by: Maxim Mikityanskiy <maximmi@mellanox.com>
Diffstat (limited to 'drivers')
13 files changed, 376 insertions, 288 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/Makefile index 8ffa1325a18f..70ad24fff2e2 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/Makefile +++ b/drivers/net/ethernet/mellanox/mlx5/core/Makefile @@ -74,7 +74,8 @@ mlx5_core-$(CONFIG_MLX5_EN_IPSEC) += en_accel/ipsec.o en_accel/ipsec_rxtx.o \ en_accel/ipsec_stats.o mlx5_core-$(CONFIG_MLX5_EN_TLS) += en_accel/tls.o en_accel/tls_rxtx.o en_accel/tls_stats.o \ - en_accel/ktls.o en_accel/ktls_tx.o en_accel/fs_tcp.o + en_accel/fs_tcp.o en_accel/ktls.o en_accel/ktls_txrx.o \ + en_accel/ktls_tx.o mlx5_core-$(CONFIG_MLX5_SW_STEERING) += steering/dr_domain.o steering/dr_table.o \ steering/dr_matcher.o steering/dr_rule.o \ diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en.h b/drivers/net/ethernet/mellanox/mlx5/core/en.h index 29265ca6050c..ec5bf73f9b07 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en.h @@ -191,13 +191,8 @@ static inline int mlx5e_get_max_num_channels(struct mlx5_core_dev *mdev) struct mlx5e_tx_wqe { struct mlx5_wqe_ctrl_seg ctrl; - union { - struct { - struct mlx5_wqe_eth_seg eth; - struct mlx5_wqe_data_seg data[0]; - }; - u8 tls_progress_params_ctx[0]; - }; + struct mlx5_wqe_eth_seg eth; + struct mlx5_wqe_data_seg data[0]; }; struct mlx5e_rx_wqe_ll { @@ -213,10 +208,7 @@ struct mlx5e_umr_wqe { struct mlx5_wqe_ctrl_seg ctrl; struct mlx5_wqe_umr_ctrl_seg uctrl; struct mlx5_mkey_seg mkc; - union { - struct mlx5_mtt inline_mtts[0]; - u8 tls_static_params_ctx[0]; - }; + struct mlx5_mtt inline_mtts[0]; }; extern const char mlx5e_self_tests[][ETH_GSTRING_LEN]; 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 452fcf59c36b..8970ea68d005 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.c @@ -3,31 +3,7 @@ #include "en.h" #include "en_accel/ktls.h" - -u16 mlx5e_ktls_get_stop_room(struct mlx5e_txqsq *sq) -{ - u16 num_dumps, stop_room = 0; - - num_dumps = mlx5e_ktls_dumps_num_wqes(sq, MAX_SKB_FRAGS, TLS_MAX_PAYLOAD_SIZE); - - stop_room += mlx5e_stop_room_for_wqe(MLX5E_KTLS_STATIC_WQEBBS); - stop_room += mlx5e_stop_room_for_wqe(MLX5E_KTLS_PROGRESS_WQEBBS); - stop_room += num_dumps * mlx5e_stop_room_for_wqe(MLX5E_KTLS_DUMP_WQEBBS); - - return stop_room; -} - -static int mlx5e_ktls_create_tis(struct mlx5_core_dev *mdev, u32 *tisn) -{ - u32 in[MLX5_ST_SZ_DW(create_tis_in)] = {}; - void *tisc; - - tisc = MLX5_ADDR_OF(create_tis_in, in, ctx); - - MLX5_SET(tisc, tisc, tls_en, 1); - - return mlx5e_create_tis(mdev, in, tisn); -} +#include "en_accel/ktls_utils.h" static int mlx5e_ktls_add(struct net_device *netdev, struct sock *sk, enum tls_offload_ctx_dir direction, @@ -35,8 +11,6 @@ static int mlx5e_ktls_add(struct net_device *netdev, struct sock *sk, u32 start_offload_tcp_sn) { struct mlx5e_priv *priv = netdev_priv(netdev); - struct mlx5e_ktls_offload_context_tx *tx_priv; - struct tls_context *tls_ctx = tls_get_ctx(sk); struct mlx5_core_dev *mdev = priv->mdev; int err; @@ -46,31 +20,8 @@ static int mlx5e_ktls_add(struct net_device *netdev, struct sock *sk, if (WARN_ON(!mlx5e_ktls_type_check(mdev, crypto_info))) return -EOPNOTSUPP; - tx_priv = kvzalloc(sizeof(*tx_priv), GFP_KERNEL); - if (!tx_priv) - return -ENOMEM; - - tx_priv->expected_seq = start_offload_tcp_sn; - 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 */ - err = mlx5e_ktls_create_tis(mdev, &tx_priv->tisn); - if (err) - goto create_tis_fail; - - err = mlx5_ktls_create_key(mdev, crypto_info, &tx_priv->key_id); - if (err) - goto encryption_key_create_fail; + err = mlx5e_ktls_add_tx(netdev, sk, crypto_info, start_offload_tcp_sn); - mlx5e_ktls_tx_offload_set_pending(tx_priv); - - return 0; - -encryption_key_create_fail: - mlx5e_destroy_tis(priv->mdev, tx_priv->tisn); -create_tis_fail: - kvfree(tx_priv); return err; } @@ -78,13 +29,10 @@ static void mlx5e_ktls_del(struct net_device *netdev, struct tls_context *tls_ctx, enum tls_offload_ctx_dir direction) { - struct mlx5e_priv *priv = netdev_priv(netdev); - struct mlx5e_ktls_offload_context_tx *tx_priv = - mlx5e_get_ktls_tx_priv_ctx(tls_ctx); + if (direction != TLS_OFFLOAD_CTX_DIR_TX) + return; - mlx5e_destroy_tis(priv->mdev, tx_priv->tisn); - mlx5_ktls_destroy_key(priv->mdev, tx_priv->key_id); - kvfree(tx_priv); + mlx5e_ktls_del_tx(netdev, tls_ctx); } static const struct tlsdev_ops mlx5e_ktls_ops = { 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 806ed185dd4c..69d736954977 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls.h @@ -7,122 +7,15 @@ #include "en.h" #ifdef CONFIG_MLX5_EN_TLS -#include <net/tls.h> -#include "accel/tls.h" -#include "en_accel/tls_rxtx.h" - -#define MLX5E_KTLS_STATIC_UMR_WQE_SZ \ - (offsetof(struct mlx5e_umr_wqe, tls_static_params_ctx) + \ - MLX5_ST_SZ_BYTES(tls_static_params)) -#define MLX5E_KTLS_STATIC_WQEBBS \ - (DIV_ROUND_UP(MLX5E_KTLS_STATIC_UMR_WQE_SZ, MLX5_SEND_WQE_BB)) - -#define MLX5E_KTLS_PROGRESS_WQE_SZ \ - (offsetof(struct mlx5e_tx_wqe, tls_progress_params_ctx) + \ - sizeof(struct mlx5_wqe_tls_progress_params_seg)) -#define MLX5E_KTLS_PROGRESS_WQEBBS \ - (DIV_ROUND_UP(MLX5E_KTLS_PROGRESS_WQE_SZ, MLX5_SEND_WQE_BB)) - -struct mlx5e_dump_wqe { - struct mlx5_wqe_ctrl_seg ctrl; - struct mlx5_wqe_data_seg data; -}; - -#define MLX5E_TLS_FETCH_UMR_WQE(sq, pi) \ - ((struct mlx5e_umr_wqe *)mlx5e_fetch_wqe(&(sq)->wq, pi, MLX5E_KTLS_STATIC_UMR_WQE_SZ)) -#define MLX5E_TLS_FETCH_PROGRESS_WQE(sq, pi) \ - ((struct mlx5e_tx_wqe *)mlx5e_fetch_wqe(&(sq)->wq, pi, MLX5E_KTLS_PROGRESS_WQE_SZ)) -#define MLX5E_TLS_FETCH_DUMP_WQE(sq, pi) \ - ((struct mlx5e_dump_wqe *)mlx5e_fetch_wqe(&(sq)->wq, pi, \ - sizeof(struct mlx5e_dump_wqe))) - -#define MLX5E_KTLS_DUMP_WQEBBS \ - (DIV_ROUND_UP(sizeof(struct mlx5e_dump_wqe), MLX5_SEND_WQE_BB)) - -enum { - MLX5E_TLS_PROGRESS_PARAMS_AUTH_STATE_NO_OFFLOAD = 0, - MLX5E_TLS_PROGRESS_PARAMS_AUTH_STATE_OFFLOAD = 1, - MLX5E_TLS_PROGRESS_PARAMS_AUTH_STATE_AUTHENTICATION = 2, -}; - -enum { - MLX5E_TLS_PROGRESS_PARAMS_RECORD_TRACKER_STATE_START = 0, - MLX5E_TLS_PROGRESS_PARAMS_RECORD_TRACKER_STATE_TRACKING = 1, - MLX5E_TLS_PROGRESS_PARAMS_RECORD_TRACKER_STATE_SEARCHING = 2, -}; - -struct mlx5e_ktls_offload_context_tx { - struct tls_offload_context_tx *tx_ctx; - struct tls12_crypto_info_aes_gcm_128 crypto_info; - u32 expected_seq; - u32 tisn; - u32 key_id; - bool ctx_post_pending; -}; - -struct mlx5e_ktls_offload_context_tx_shadow { - struct tls_offload_context_tx tx_ctx; - struct mlx5e_ktls_offload_context_tx *priv_tx; -}; - -static inline void -mlx5e_set_ktls_tx_priv_ctx(struct tls_context *tls_ctx, - struct mlx5e_ktls_offload_context_tx *priv_tx) -{ - struct tls_offload_context_tx *tx_ctx = tls_offload_ctx_tx(tls_ctx); - struct mlx5e_ktls_offload_context_tx_shadow *shadow; - - BUILD_BUG_ON(sizeof(*shadow) > TLS_OFFLOAD_CONTEXT_SIZE_TX); - - shadow = (struct mlx5e_ktls_offload_context_tx_shadow *)tx_ctx; - - shadow->priv_tx = priv_tx; - priv_tx->tx_ctx = tx_ctx; -} - -static inline struct mlx5e_ktls_offload_context_tx * -mlx5e_get_ktls_tx_priv_ctx(struct tls_context *tls_ctx) -{ - struct tls_offload_context_tx *tx_ctx = tls_offload_ctx_tx(tls_ctx); - struct mlx5e_ktls_offload_context_tx_shadow *shadow; - - BUILD_BUG_ON(sizeof(*shadow) > TLS_OFFLOAD_CONTEXT_SIZE_TX); - - shadow = (struct mlx5e_ktls_offload_context_tx_shadow *)tx_ctx; - - return shadow->priv_tx; -} void mlx5e_ktls_build_netdev(struct mlx5e_priv *priv); -void mlx5e_ktls_tx_offload_set_pending(struct mlx5e_ktls_offload_context_tx *priv_tx); -bool mlx5e_ktls_handle_tx_skb(struct tls_context *tls_ctx, struct mlx5e_txqsq *sq, - struct sk_buff *skb, int datalen, - struct mlx5e_accel_tx_tls_state *state); -void mlx5e_ktls_tx_handle_resync_dump_comp(struct mlx5e_txqsq *sq, - struct mlx5e_tx_wqe_info *wi, - u32 *dma_fifo_cc); -u16 mlx5e_ktls_get_stop_room(struct mlx5e_txqsq *sq); - -static inline u8 -mlx5e_ktls_dumps_num_wqes(struct mlx5e_txqsq *sq, unsigned int nfrags, - unsigned int sync_len) -{ - /* Given the MTU and sync_len, calculates an upper bound for the - * number of DUMP WQEs needed for the TX resync of a record. - */ - return nfrags + DIV_ROUND_UP(sync_len, sq->hw_mtu); -} #else static inline void mlx5e_ktls_build_netdev(struct mlx5e_priv *priv) { } -static inline void -mlx5e_ktls_tx_handle_resync_dump_comp(struct mlx5e_txqsq *sq, - struct mlx5e_tx_wqe_info *wi, - u32 *dma_fifo_cc) {} #endif #endif /* __MLX5E_TLS_H__ */ 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 ad7300f19815..349e29214b92 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_tx.c @@ -1,109 +1,149 @@ // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB // Copyright (c) 2019 Mellanox Technologies. -#include <linux/tls.h> -#include "en.h" -#include "en/txrx.h" -#include "en_accel/ktls.h" +#include "en_accel/ktls_txrx.h" +#include "en_accel/ktls_utils.h" -enum { - MLX5E_STATIC_PARAMS_CONTEXT_TLS_1_2 = 0x2, +struct mlx5e_dump_wqe { + struct mlx5_wqe_ctrl_seg ctrl; + struct mlx5_wqe_data_seg data; }; -enum { - MLX5E_ENCRYPTION_STANDARD_TLS = 0x1, -}; +#define MLX5E_KTLS_DUMP_WQEBBS \ + (DIV_ROUND_UP(sizeof(struct mlx5e_dump_wqe), MLX5_SEND_WQE_BB)) -#define EXTRACT_INFO_FIELDS do { \ - salt = info->salt; \ - rec_seq = info->rec_seq; \ - salt_sz = sizeof(info->salt); \ - rec_seq_sz = sizeof(info->rec_seq); \ -} while (0) +static u8 +mlx5e_ktls_dumps_num_wqes(struct mlx5e_txqsq *sq, unsigned int nfrags, + unsigned int sync_len) +{ + /* Given the MTU and sync_len, calculates an upper bound for the + * number of DUMP WQEs needed for the TX resync of a record. + */ + return nfrags + DIV_ROUND_UP(sync_len, sq->hw_mtu); +} -static void -fill_static_params_ctx(void *ctx, struct mlx5e_ktls_offload_context_tx *priv_tx) +u16 mlx5e_ktls_get_stop_room(struct mlx5e_txqsq *sq) { - 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; + u16 num_dumps, stop_room = 0; - EXTRACT_INFO_FIELDS; + num_dumps = mlx5e_ktls_dumps_num_wqes(sq, MAX_SKB_FRAGS, TLS_MAX_PAYLOAD_SIZE); - gcm_iv = MLX5_ADDR_OF(tls_static_params, ctx, gcm_iv); - initial_rn = MLX5_ADDR_OF(tls_static_params, ctx, initial_record_number); + stop_room += mlx5e_stop_room_for_wqe(MLX5E_TLS_SET_STATIC_PARAMS_WQEBBS); + stop_room += mlx5e_stop_room_for_wqe(MLX5E_TLS_SET_PROGRESS_PARAMS_WQEBBS); + stop_room += num_dumps * mlx5e_stop_room_for_wqe(MLX5E_KTLS_DUMP_WQEBBS); - memcpy(gcm_iv, salt, salt_sz); - memcpy(initial_rn, rec_seq, rec_seq_sz); + return stop_room; +} + +static int mlx5e_ktls_create_tis(struct mlx5_core_dev *mdev, u32 *tisn) +{ + u32 in[MLX5_ST_SZ_DW(create_tis_in)] = {}; + void *tisc; - tls_version = MLX5E_STATIC_PARAMS_CONTEXT_TLS_1_2; + tisc = MLX5_ADDR_OF(create_tis_in, in, ctx); - MLX5_SET(tls_static_params, ctx, tls_version, tls_version); - MLX5_SET(tls_static_params, ctx, const_1, 1); - MLX5_SET(tls_static_params, ctx, const_2, 2); - MLX5_SET(tls_static_params, ctx, encryption_standard, - MLX5E_ENCRYPTION_STANDARD_TLS); - MLX5_SET(tls_static_params, ctx, dek_index, priv_tx->key_id); + MLX5_SET(tisc, tisc, tls_en, 1); + + return mlx5e_create_tis(mdev, in, tisn); } +struct mlx5e_ktls_offload_context_tx { + struct tls_offload_context_tx *tx_ctx; + struct tls12_crypto_info_aes_gcm_128 crypto_info; + u32 expected_seq; + u32 tisn; + u32 key_id; + bool ctx_post_pending; +}; + +struct mlx5e_ktls_offload_context_tx_shadow { + struct tls_offload_context_tx tx_ctx; + struct mlx5e_ktls_offload_context_tx *priv_tx; +}; + static void -build_static_params(struct mlx5e_umr_wqe *wqe, u16 pc, u32 sqn, - struct mlx5e_ktls_offload_context_tx *priv_tx, - bool fence) +mlx5e_set_ktls_tx_priv_ctx(struct tls_context *tls_ctx, + struct mlx5e_ktls_offload_context_tx *priv_tx) { - struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl; - struct mlx5_wqe_umr_ctrl_seg *ucseg = &wqe->uctrl; - -#define STATIC_PARAMS_DS_CNT \ - DIV_ROUND_UP(MLX5E_KTLS_STATIC_UMR_WQE_SZ, MLX5_SEND_WQE_DS) + struct tls_offload_context_tx *tx_ctx = tls_offload_ctx_tx(tls_ctx); + struct mlx5e_ktls_offload_context_tx_shadow *shadow; - cseg->opmod_idx_opcode = cpu_to_be32((pc << 8) | MLX5_OPCODE_UMR | - (MLX5_OPC_MOD_TLS_TIS_STATIC_PARAMS << 24)); - cseg->qpn_ds = cpu_to_be32((sqn << MLX5_WQE_CTRL_QPN_SHIFT) | - STATIC_PARAMS_DS_CNT); - cseg->fm_ce_se = fence ? MLX5_FENCE_MODE_INITIATOR_SMALL : 0; - cseg->tis_tir_num = cpu_to_be32(priv_tx->tisn << 8); + BUILD_BUG_ON(sizeof(*shadow) > TLS_OFFLOAD_CONTEXT_SIZE_TX); - ucseg->flags = MLX5_UMR_INLINE; - ucseg->bsf_octowords = cpu_to_be16(MLX5_ST_SZ_BYTES(tls_static_params) / 16); + shadow = (struct mlx5e_ktls_offload_context_tx_shadow *)tx_ctx; - fill_static_params_ctx(wqe->tls_static_params_ctx, priv_tx); + shadow->priv_tx = priv_tx; + priv_tx->tx_ctx = tx_ctx; } -static void -fill_progress_params_ctx(void *ctx, struct mlx5e_ktls_offload_context_tx *priv_tx) +static struct mlx5e_ktls_offload_context_tx * +mlx5e_get_ktls_tx_priv_ctx(struct tls_context *tls_ctx) { - struct mlx5_wqe_tls_progress_params_seg *params; + struct tls_offload_context_tx *tx_ctx = tls_offload_ctx_tx(tls_ctx); + struct mlx5e_ktls_offload_context_tx_shadow *shadow; + + BUILD_BUG_ON(sizeof(*shadow) > TLS_OFFLOAD_CONTEXT_SIZE_TX); - params = ctx; + shadow = (struct mlx5e_ktls_offload_context_tx_shadow *)tx_ctx; - params->tis_tir_num = cpu_to_be32(priv_tx->tisn); - MLX5_SET(tls_progress_params, params->ctx, record_tracker_state, - MLX5E_TLS_PROGRESS_PARAMS_RECORD_TRACKER_STATE_START); - MLX5_SET(tls_progress_params, params->ctx, auth_state, - MLX5E_TLS_PROGRESS_PARAMS_AUTH_STATE_NO_OFFLOAD); + return shadow->priv_tx; } -static void -build_progress_params(struct mlx5e_tx_wqe *wqe, u16 pc, u32 sqn, - struct mlx5e_ktls_offload_context_tx *priv_tx, - bool fence) +int mlx5e_ktls_add_tx(struct net_device *netdev, struct sock *sk, + struct tls_crypto_info *crypto_info, u32 start_offload_tcp_sn) { - struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl; + struct mlx5e_ktls_offload_context_tx *priv_tx; + struct tls_context *tls_ctx; + struct mlx5_core_dev *mdev; + struct mlx5e_priv *priv; + int err; -#define PROGRESS_PARAMS_DS_CNT \ - DIV_ROUND_UP(MLX5E_KTLS_PROGRESS_WQE_SZ, MLX5_SEND_WQE_DS) + tls_ctx = tls_get_ctx(sk); + priv = netdev_priv(netdev); + mdev = priv->mdev; - cseg->opmod_idx_opcode = - cpu_to_be32((pc << 8) | MLX5_OPCODE_SET_PSV | - (MLX5_OPC_MOD_TLS_TIS_PROGRESS_PARAMS << 24)); - cseg->qpn_ds = cpu_to_be32((sqn << MLX5_WQE_CTRL_QPN_SHIFT) | - PROGRESS_PARAMS_DS_CNT); - cseg->fm_ce_se = fence ? MLX5_FENCE_MODE_INITIATOR_SMALL : 0; + priv_tx = kzalloc(sizeof(*priv_tx), GFP_KERNEL); + if (!priv_tx) + return -ENOMEM; + + err = mlx5_ktls_create_key(mdev, crypto_info, &priv_tx->key_id); + if (err) + goto err_create_key; + + priv_tx->expected_seq = start_offload_tcp_sn; + priv_tx->crypto_info = + *(struct tls12_crypto_info_aes_gcm_128 *)crypto_info; + + mlx5e_set_ktls_tx_priv_ctx(tls_ctx, priv_tx); + + err = mlx5e_ktls_create_tis(mdev, &priv_tx->tisn); + if (err) + goto err_create_tis; + + priv_tx->ctx_post_pending = true; + + return 0; + +err_create_tis: + mlx5_ktls_destroy_key(mdev, priv_tx->key_id); +err_create_key: + kfree(priv_tx); + return err; +} + +void mlx5e_ktls_del_tx(struct net_device *netdev, struct tls_context *tls_ctx) +{ + struct mlx5e_ktls_offload_context_tx *priv_tx; + struct mlx5_core_dev *mdev; + struct mlx5e_priv *priv; + + priv_tx = mlx5e_get_ktls_tx_priv_ctx(tls_ctx); + priv = netdev_priv(netdev); + mdev = priv->mdev; - fill_progress_params_ctx(wqe->tls_progress_params_ctx, priv_tx); + mlx5e_destroy_tis(mdev, priv_tx->tisn); + mlx5_ktls_destroy_key(mdev, priv_tx->key_id); + kfree(priv_tx); } static void tx_fill_wi(struct mlx5e_txqsq *sq, @@ -119,11 +159,6 @@ static void tx_fill_wi(struct mlx5e_txqsq *sq, }; } -void mlx5e_ktls_tx_offload_set_pending(struct mlx5e_ktls_offload_context_tx *priv_tx) -{ - priv_tx->ctx_post_pending = true; -} - static bool mlx5e_ktls_tx_offload_test_and_clear_pending(struct mlx5e_ktls_offload_context_tx *priv_tx) { @@ -139,12 +174,15 @@ post_static_params(struct mlx5e_txqsq *sq, struct mlx5e_ktls_offload_context_tx *priv_tx, bool fence) { - u16 pi, num_wqebbs = MLX5E_KTLS_STATIC_WQEBBS; - struct mlx5e_umr_wqe *umr_wqe; + struct mlx5e_set_tls_static_params_wqe *wqe; + u16 pi, num_wqebbs; + num_wqebbs = MLX5E_TLS_SET_STATIC_PARAMS_WQEBBS; pi = mlx5e_txqsq_get_next_pi(sq, num_wqebbs); - umr_wqe = MLX5E_TLS_FETCH_UMR_WQE(sq, pi); - build_static_params(umr_wqe, sq->pc, sq->sqn, priv_tx, fence); + wqe = MLX5E_TLS_FETCH_SET_STATIC_PARAMS_WQE(sq, pi); + mlx5e_ktls_build_static_params(wqe, sq->pc, sq->sqn, &priv_tx->crypto_info, + priv_tx->tisn, priv_tx->key_id, fence, + TLS_OFFLOAD_CTX_DIR_TX); tx_fill_wi(sq, pi, num_wqebbs, 0, NULL); sq->pc += num_wqebbs; } @@ -154,12 +192,14 @@ post_progress_params(struct mlx5e_txqsq *sq, struct mlx5e_ktls_offload_context_tx *priv_tx, bool fence) { - u16 pi, num_wqebbs = MLX5E_KTLS_PROGRESS_WQEBBS; - struct mlx5e_tx_wqe *wqe; + struct mlx5e_set_tls_progress_params_wqe *wqe; + u16 pi, num_wqebbs; + num_wqebbs = MLX5E_TLS_SET_PROGRESS_PARAMS_WQEBBS; pi = mlx5e_txqsq_get_next_pi(sq, num_wqebbs); - wqe = MLX5E_TLS_FETCH_PROGRESS_WQE(sq, pi); - build_progress_params(wqe, sq->pc, sq->sqn, priv_tx, fence); + wqe = MLX5E_TLS_FETCH_SET_PROGRESS_PARAMS_WQE(sq, pi); + mlx5e_ktls_build_progress_params(wqe, sq->pc, sq->sqn, priv_tx->tisn, fence, + TLS_OFFLOAD_CTX_DIR_TX); tx_fill_wi(sq, pi, num_wqebbs, 0, NULL); sq->pc += num_wqebbs; } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_txrx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_txrx.c new file mode 100644 index 000000000000..edf404eaa275 --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_txrx.c @@ -0,0 +1,110 @@ +// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB +/* Copyright (c) 2020, Mellanox Technologies inc. All rights reserved. */ + +#include "en_accel/ktls_txrx.h" +#include "en_accel/ktls_utils.h" + +enum { + MLX5E_STATIC_PARAMS_CONTEXT_TLS_1_2 = 0x2, +}; + +enum { + MLX5E_ENCRYPTION_STANDARD_TLS = 0x1, +}; + +#define EXTRACT_INFO_FIELDS do { \ + salt = info->salt; \ + rec_seq = info->rec_seq; \ + salt_sz = sizeof(info->salt); \ + rec_seq_sz = sizeof(info->rec_seq); \ +} while (0) + +static void +fill_static_params(struct mlx5_wqe_tls_static_params_seg *params, + struct tls12_crypto_info_aes_gcm_128 *info, + u32 key_id) +{ + char *initial_rn, *gcm_iv; + u16 salt_sz, rec_seq_sz; + char *salt, *rec_seq; + u8 tls_version; + u8 *ctx; + + ctx = params->ctx; + + EXTRACT_INFO_FIELDS; + + gcm_iv = MLX5_ADDR_OF(tls_static_params, ctx, gcm_iv); + initial_rn = MLX5_ADDR_OF(tls_static_params, ctx, initial_record_number); + + memcpy(gcm_iv, salt, salt_sz); + memcpy(initial_rn, rec_seq, rec_seq_sz); + + tls_version = MLX5E_STATIC_PARAMS_CONTEXT_TLS_1_2; + + MLX5_SET(tls_static_params, ctx, tls_version, tls_version); + MLX5_SET(tls_static_params, ctx, const_1, 1); + MLX5_SET(tls_static_params, ctx, const_2, 2); + MLX5_SET(tls_static_params, ctx, encryption_standard, + MLX5E_ENCRYPTION_STANDARD_TLS); + MLX5_SET(tls_static_params, ctx, dek_index, key_id); +} + +void +mlx5e_ktls_build_static_params(struct mlx5e_set_tls_static_params_wqe *wqe, + u16 pc, u32 sqn, + struct tls12_crypto_info_aes_gcm_128 *info, + u32 tis_tir_num, u32 key_id, + bool fence, enum tls_offload_ctx_dir direction) +{ + struct mlx5_wqe_umr_ctrl_seg *ucseg = &wqe->uctrl; + struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl; + +#define STATIC_PARAMS_DS_CNT DIV_ROUND_UP(sizeof(*wqe), MLX5_SEND_WQE_DS) + + cseg->opmod_idx_opcode = cpu_to_be32((pc << 8) | MLX5_OPCODE_UMR | + (MLX5_OPC_MOD_TLS_TIS_STATIC_PARAMS << 24)); + cseg->qpn_ds = cpu_to_be32((sqn << MLX5_WQE_CTRL_QPN_SHIFT) | + STATIC_PARAMS_DS_CNT); + cseg->fm_ce_se = fence ? MLX5_FENCE_MODE_INITIATOR_SMALL : 0; + cseg->tis_tir_num = cpu_to_be32(tis_tir_num << 8); + + ucseg->flags = MLX5_UMR_INLINE; + ucseg->bsf_octowords = cpu_to_be16(MLX5_ST_SZ_BYTES(tls_static_params) / 16); + + fill_static_params(&wqe->params, info, key_id); +} + +static void +fill_progress_params(struct mlx5_wqe_tls_progress_params_seg *params, u32 tis_tir_num) +{ + u8 *ctx = params->ctx; + + params->tis_tir_num = cpu_to_be32(tis_tir_num); + + MLX5_SET(tls_progress_params, ctx, record_tracker_state, + MLX5E_TLS_PROGRESS_PARAMS_RECORD_TRACKER_STATE_START); + MLX5_SET(tls_progress_params, ctx, auth_state, + MLX5E_TLS_PROGRESS_PARAMS_AUTH_STATE_NO_OFFLOAD); +} + +void +mlx5e_ktls_build_progress_params(struct mlx5e_set_tls_progress_params_wqe *wqe, + u16 pc, u32 sqn, + u32 tis_tir_num, bool fence, + enum tls_offload_ctx_dir direction) +{ + struct mlx5_wqe_ctrl_seg *cseg = &wqe->ctrl; + +#define PROGRESS_PARAMS_DS_CNT DIV_ROUND_UP(sizeof(*wqe), MLX5_SEND_WQE_DS) + + cseg->opmod_idx_opcode = + cpu_to_be32((pc << 8) | MLX5_OPCODE_SET_PSV | + (MLX5_OPC_MOD_TLS_TIS_PROGRESS_PARAMS << 24)); + cseg->qpn_ds = cpu_to_be32((sqn << MLX5_WQE_CTRL_QPN_SHIFT) | + PROGRESS_PARAMS_DS_CNT); + cseg->fm_ce_se = fence ? MLX5_FENCE_MODE_INITIATOR_SMALL : 0; + + fill_progress_params(&wqe->params, tis_tir_num); +} + diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_txrx.h b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_txrx.h new file mode 100644 index 000000000000..7ce6b1c41d9b --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_txrx.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ +/* Copyright (c) 2020, Mellanox Technologies inc. All rights reserved. */ + +#ifndef __MLX5E_KTLS_TXRX_H__ +#define __MLX5E_KTLS_TXRX_H__ + +#ifdef CONFIG_MLX5_EN_TLS + +#include <net/tls.h> +#include "en.h" +#include "en/txrx.h" + +struct mlx5e_accel_tx_tls_state { + u32 tls_tisn; +}; + +u16 mlx5e_ktls_get_stop_room(struct mlx5e_txqsq *sq); + +bool mlx5e_ktls_handle_tx_skb(struct tls_context *tls_ctx, struct mlx5e_txqsq *sq, + struct sk_buff *skb, int datalen, + struct mlx5e_accel_tx_tls_state *state); + +void mlx5e_ktls_tx_handle_resync_dump_comp(struct mlx5e_txqsq *sq, + struct mlx5e_tx_wqe_info *wi, + u32 *dma_fifo_cc); +#else +static inline void +mlx5e_ktls_tx_handle_resync_dump_comp(struct mlx5e_txqsq *sq, + struct mlx5e_tx_wqe_info *wi, + u32 *dma_fifo_cc) +{ +} + +#endif /* CONFIG_MLX5_EN_TLS */ + +#endif /* __MLX5E_TLS_TXRX_H__ */ diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_utils.h b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_utils.h new file mode 100644 index 000000000000..d1d747cb2dcb --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ktls_utils.h @@ -0,0 +1,69 @@ +/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ +/* Copyright (c) 2020, Mellanox Technologies inc. All rights reserved. */ + +#ifndef __MLX5E_KTLS_UTILS_H__ +#define __MLX5E_KTLS_UTILS_H__ + +#include <net/tls.h> +#include "en.h" +#include "accel/tls.h" + +enum { + MLX5E_TLS_PROGRESS_PARAMS_AUTH_STATE_NO_OFFLOAD = 0, + MLX5E_TLS_PROGRESS_PARAMS_AUTH_STATE_OFFLOAD = 1, + MLX5E_TLS_PROGRESS_PARAMS_AUTH_STATE_AUTHENTICATION = 2, +}; + +enum { + MLX5E_TLS_PROGRESS_PARAMS_RECORD_TRACKER_STATE_START = 0, + MLX5E_TLS_PROGRESS_PARAMS_RECORD_TRACKER_STATE_TRACKING = 1, + MLX5E_TLS_PROGRESS_PARAMS_RECORD_TRACKER_STATE_SEARCHING = 2, +}; + +int mlx5e_ktls_add_tx(struct net_device *netdev, struct sock *sk, + struct tls_crypto_info *crypto_info, u32 start_offload_tcp_sn); +void mlx5e_ktls_del_tx(struct net_device *netdev, struct tls_context *tls_ctx); + +struct mlx5e_set_tls_static_params_wqe { + struct mlx5_wqe_ctrl_seg ctrl; + struct mlx5_wqe_umr_ctrl_seg uctrl; + struct mlx5_mkey_seg mkc; + struct mlx5_wqe_tls_static_params_seg params; +}; + +struct mlx5e_set_tls_progress_params_wqe { + struct mlx5_wqe_ctrl_seg ctrl; + struct mlx5_wqe_tls_progress_params_seg params; +}; + +#define MLX5E_TLS_SET_STATIC_PARAMS_WQEBBS \ + (DIV_ROUND_UP(sizeof(struct mlx5e_set_tls_static_params_wqe), MLX5_SEND_WQE_BB)) + +#define MLX5E_TLS_SET_PROGRESS_PARAMS_WQEBBS \ + (DIV_ROUND_UP(sizeof(struct mlx5e_set_tls_progress_params_wqe), MLX5_SEND_WQE_BB)) + +#define MLX5E_TLS_FETCH_SET_STATIC_PARAMS_WQE(sq, pi) \ + ((struct mlx5e_set_tls_static_params_wqe *)\ + mlx5e_fetch_wqe(&(sq)->wq, pi, sizeof(struct mlx5e_set_tls_static_params_wqe))) + +#define MLX5E_TLS_FETCH_SET_PROGRESS_PARAMS_WQE(sq, pi) \ + ((struct mlx5e_set_tls_progress_params_wqe *)\ + mlx5e_fetch_wqe(&(sq)->wq, pi, sizeof(struct mlx5e_set_tls_progress_params_wqe))) + +#define MLX5E_TLS_FETCH_DUMP_WQE(sq, pi) \ + ((struct mlx5e_dump_wqe *)\ + mlx5e_fetch_wqe(&(sq)->wq, pi, sizeof(struct mlx5e_dump_wqe))) + +void +mlx5e_ktls_build_static_params(struct mlx5e_set_tls_static_params_wqe *wqe, + u16 pc, u32 sqn, + struct tls12_crypto_info_aes_gcm_128 *info, + u32 tis_tir_num, u32 key_id, + bool fence, enum tls_offload_ctx_dir direction); +void +mlx5e_ktls_build_progress_params(struct mlx5e_set_tls_progress_params_wqe *wqe, + u16 pc, u32 sqn, + u32 tis_tir_num, bool fence, + enum tls_offload_ctx_dir direction); + +#endif /* __MLX5E_TLS_UTILS_H__ */ 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 1fbb5a90cb38..c01c17a5c6de 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.c @@ -240,17 +240,3 @@ void mlx5e_tls_cleanup(struct mlx5e_priv *priv) kfree(tls); priv->tls = NULL; } - -u16 mlx5e_tls_get_stop_room(struct mlx5e_txqsq *sq) -{ - struct mlx5_core_dev *mdev = sq->channel->mdev; - - if (!mlx5_accel_is_tls_device(mdev)) - return 0; - - if (MLX5_CAP_GEN(mdev, tls_tx)) - return mlx5e_ktls_get_stop_room(sq); - - /* Resync SKB. */ - return mlx5e_stop_room_for_wqe(MLX5_SEND_WQE_MAX_WQEBBS); -} 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 9219bdb2786e..9015f3f7792d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls.h @@ -94,8 +94,6 @@ int mlx5e_tls_get_count(struct mlx5e_priv *priv); int mlx5e_tls_get_strings(struct mlx5e_priv *priv, uint8_t *data); int mlx5e_tls_get_stats(struct mlx5e_priv *priv, u64 *data); -u16 mlx5e_tls_get_stop_room(struct mlx5e_txqsq *sq); - #else static inline void mlx5e_tls_build_netdev(struct mlx5e_priv *priv) @@ -110,11 +108,6 @@ static inline int mlx5e_tls_get_count(struct mlx5e_priv *priv) { return 0; } static inline int mlx5e_tls_get_strings(struct mlx5e_priv *priv, uint8_t *data) { return 0; } static inline int mlx5e_tls_get_stats(struct mlx5e_priv *priv, u64 *data) { return 0; } -static inline u16 mlx5e_tls_get_stop_room(struct mlx5e_txqsq *sq) -{ - return 0; -} - #endif #endif /* __MLX5E_TLS_H__ */ diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls_rxtx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls_rxtx.c index 72d26fbc8d5b..4d796fea906d 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls_rxtx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls_rxtx.c @@ -387,3 +387,17 @@ void mlx5e_tls_handle_rx_skb(struct net_device *netdev, struct sk_buff *skb, remove_metadata_hdr(skb); *cqe_bcnt -= MLX5E_METADATA_ETHER_LEN; } + +u16 mlx5e_tls_get_stop_room(struct mlx5e_txqsq *sq) +{ + struct mlx5_core_dev *mdev = sq->channel->mdev; + + if (!mlx5_accel_is_tls_device(mdev)) + return 0; + + if (MLX5_CAP_GEN(mdev, tls_tx)) + return mlx5e_ktls_get_stop_room(sq); + + /* Resync SKB. */ + return mlx5e_stop_room_for_wqe(MLX5_SEND_WQE_MAX_WQEBBS); +} diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls_rxtx.h b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls_rxtx.h index a50d0394df0a..2a7b98531539 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls_rxtx.h +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/tls_rxtx.h @@ -34,15 +34,15 @@ #ifndef __MLX5E_TLS_RXTX_H__ #define __MLX5E_TLS_RXTX_H__ +#include "en_accel/ktls_txrx.h" + #ifdef CONFIG_MLX5_EN_TLS #include <linux/skbuff.h> #include "en.h" #include "en/txrx.h" -struct mlx5e_accel_tx_tls_state { - u32 tls_tisn; -}; +u16 mlx5e_tls_get_stop_room(struct mlx5e_txqsq *sq); bool mlx5e_tls_handle_tx_skb(struct net_device *netdev, struct mlx5e_txqsq *sq, struct sk_buff *skb, struct mlx5e_accel_tx_tls_state *state); @@ -52,6 +52,13 @@ void mlx5e_tls_handle_tx_wqe(struct mlx5e_txqsq *sq, struct mlx5_wqe_ctrl_seg *c void mlx5e_tls_handle_rx_skb(struct net_device *netdev, struct sk_buff *skb, u32 *cqe_bcnt); +#else + +static inline u16 mlx5e_tls_get_stop_room(struct mlx5e_txqsq *sq) +{ + return 0; +} + #endif /* CONFIG_MLX5_EN_TLS */ #endif /* __MLX5E_TLS_RXTX_H__ */ diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c index 6d406063aca4..da596de3abba 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tx.c @@ -38,7 +38,6 @@ #include "en/txrx.h" |