1 /*- 2 * Copyright (c) 2019 Mellanox Technologies. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 * 25 * $FreeBSD$ 26 */ 27 28 #ifndef _MLX5_TLS_H_ 29 #define _MLX5_TLS_H_ 30 31 #include <sys/queue.h> 32 33 #define MLX5E_TLS_TAG_LOCK(tag) mtx_lock(&(tag)->mtx) 34 #define MLX5E_TLS_TAG_UNLOCK(tag) mtx_unlock(&(tag)->mtx) 35 36 #define MLX5E_TLS_STAT_INC(tag, field, num) \ 37 counter_u64_add((tag)->tls->stats.field, num) 38 39 enum { 40 MLX5E_TLS_LOOP = 0, 41 MLX5E_TLS_FAILURE = 1, 42 MLX5E_TLS_DEFERRED = 2, 43 MLX5E_TLS_CONTINUE = 3, 44 }; 45 46 struct mlx5e_tls_tag { 47 struct m_snd_tag tag; 48 STAILQ_ENTRY(mlx5e_tls_tag) entry; 49 volatile s32 refs; /* number of pending mbufs */ 50 uint32_t tisn; /* HW TIS context number */ 51 uint32_t dek_index; /* HW TLS context number */ 52 struct mlx5e_tls *tls; 53 struct m_snd_tag *rl_tag; 54 struct mtx mtx; 55 uint32_t expected_seq; /* expected TCP sequence number */ 56 uint32_t state; /* see MLX5E_TLS_ST_XXX */ 57 #define MLX5E_TLS_ST_INIT 0 58 #define MLX5E_TLS_ST_SETUP 1 59 #define MLX5E_TLS_ST_TXRDY 2 60 #define MLX5E_TLS_ST_FREED 3 61 struct work_struct work; 62 63 uint32_t dek_index_ok:1; 64 65 /* parameters needed */ 66 uint8_t crypto_params[128] __aligned(4); 67 } __aligned(MLX5E_CACHELINE_SIZE); 68 69 #define MLX5E_TLS_STATS(m) \ 70 m(+1, u64, tx_packets, "tx_packets", "Transmitted packets") \ 71 m(+1, u64, tx_bytes, "tx_bytes", "Transmitted bytes") \ 72 m(+1, u64, tx_packets_ooo, "tx_packets_ooo", "Transmitted packets out of order") \ 73 m(+1, u64, tx_bytes_ooo, "tx_bytes_ooo", "Transmitted bytes out of order") \ 74 m(+1, u64, tx_error, "tx_error", "Transmitted packets with error") 75 76 #define MLX5E_TLS_STATS_NUM (0 MLX5E_TLS_STATS(MLX5E_STATS_COUNT)) 77 78 struct mlx5e_tls_stats { 79 struct sysctl_ctx_list ctx; 80 counter_u64_t arg[0]; 81 MLX5E_TLS_STATS(MLX5E_STATS_COUNTER) 82 }; 83 84 struct mlx5e_tls { 85 struct sysctl_ctx_list ctx; 86 struct mlx5e_tls_stats stats; 87 struct workqueue_struct *wq; 88 uma_zone_t zone; 89 uint32_t max_resources; /* max number of resources */ 90 volatile uint32_t num_resources; /* current number of resources */ 91 int init; /* set when ready */ 92 char zname[32]; 93 }; 94 95 int mlx5e_tls_init(struct mlx5e_priv *); 96 void mlx5e_tls_cleanup(struct mlx5e_priv *); 97 int mlx5e_sq_tls_xmit(struct mlx5e_sq *, struct mlx5e_xmit_args *, struct mbuf **); 98 99 if_snd_tag_alloc_t mlx5e_tls_snd_tag_alloc; 100 101 #endif /* _MLX5_TLS_H_ */ 102