56fb710f1b
Both cxgbe(4) and mlx5(4) wrapped the existing send tag header with their own identical headers that stored the type that the type-specific tag structures inherited from, so in practice it seems drivers need this in the tag anyway. This permits removing these extra header indirections (struct cxgbe_snd_tag and struct mlx5e_snd_tag). In addition, this permits driver-independent code to query the type of a tag, e.g. to know what type of tag is being queried via if_snd_query. Reviewed by: gallatin, hselasky, np, kib Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D26689
105 lines
3.6 KiB
C
105 lines
3.6 KiB
C
/*-
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* Copyright (c) 2019 Mellanox Technologies. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MLX5_TLS_H_
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#define _MLX5_TLS_H_
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#include <sys/queue.h>
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#define MLX5E_TLS_TAG_LOCK(tag) mtx_lock(&(tag)->mtx)
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#define MLX5E_TLS_TAG_UNLOCK(tag) mtx_unlock(&(tag)->mtx)
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#define MLX5E_TLS_STAT_INC(tag, field, num) \
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counter_u64_add((tag)->tls->stats.field, num)
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enum {
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MLX5E_TLS_LOOP = 0,
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MLX5E_TLS_FAILURE = 1,
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MLX5E_TLS_DEFERRED = 2,
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MLX5E_TLS_CONTINUE = 3,
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};
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struct mlx5e_tls_tag {
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struct m_snd_tag tag;
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STAILQ_ENTRY(mlx5e_tls_tag) entry;
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volatile s32 refs; /* number of pending mbufs */
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uint32_t tisn; /* HW TIS context number */
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uint32_t dek_index; /* HW TLS context number */
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struct mlx5e_tls *tls;
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struct m_snd_tag *rl_tag;
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struct mtx mtx;
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uint32_t expected_seq; /* expected TCP sequence number */
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uint32_t state; /* see MLX5E_TLS_ST_XXX */
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#define MLX5E_TLS_ST_INIT 0
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#define MLX5E_TLS_ST_SETUP 1
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#define MLX5E_TLS_ST_TXRDY 2
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#define MLX5E_TLS_ST_FREED 3
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struct work_struct work;
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uint32_t dek_index_ok:1;
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/* parameters needed */
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uint8_t crypto_params[128] __aligned(4);
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} __aligned(MLX5E_CACHELINE_SIZE);
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#define MLX5E_TLS_STATS(m) \
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m(+1, u64, tx_packets, "tx_packets", "Transmitted packets") \
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m(+1, u64, tx_bytes, "tx_bytes", "Transmitted bytes") \
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m(+1, u64, tx_packets_ooo, "tx_packets_ooo", "Transmitted packets out of order") \
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m(+1, u64, tx_bytes_ooo, "tx_bytes_ooo", "Transmitted bytes out of order") \
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m(+1, u64, tx_error, "tx_error", "Transmitted packets with error")
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#define MLX5E_TLS_STATS_NUM (0 MLX5E_TLS_STATS(MLX5E_STATS_COUNT))
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struct mlx5e_tls_stats {
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struct sysctl_ctx_list ctx;
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counter_u64_t arg[0];
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MLX5E_TLS_STATS(MLX5E_STATS_COUNTER)
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};
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struct mlx5e_tls {
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struct sysctl_ctx_list ctx;
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struct mlx5e_tls_stats stats;
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struct workqueue_struct *wq;
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uma_zone_t zone;
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uint32_t max_resources; /* max number of resources */
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volatile uint32_t num_resources; /* current number of resources */
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int init; /* set when ready */
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char zname[32];
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};
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int mlx5e_tls_init(struct mlx5e_priv *);
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void mlx5e_tls_cleanup(struct mlx5e_priv *);
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int mlx5e_sq_tls_xmit(struct mlx5e_sq *, struct mlx5e_xmit_args *, struct mbuf **);
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if_snd_tag_alloc_t mlx5e_tls_snd_tag_alloc;
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if_snd_tag_modify_t mlx5e_tls_snd_tag_modify;
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if_snd_tag_query_t mlx5e_tls_snd_tag_query;
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if_snd_tag_free_t mlx5e_tls_snd_tag_free;
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#endif /* _MLX5_TLS_H_ */
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