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/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright (C) 2020 Chelsio Communications. All rights reserved. */
#ifndef __CHCR_KTLS_H__
#define __CHCR_KTLS_H__
#ifdef CONFIG_CHELSIO_TLS_DEVICE
#include <net/tls.h>
#include "cxgb4.h"
#include "t4_msg.h"
#include "t4_tcb.h"
#include "l2t.h"
#include "chcr_common.h"
#define CHCR_TCB_STATE_CLOSED 0
enum chcr_ktls_conn_state {
KTLS_CONN_CLOSED,
};
struct chcr_ktls_info {
struct sock *sk;
spinlock_t lock; /* state machine lock */
struct adapter *adap;
struct l2t_entry *l2te;
struct net_device *netdev;
int tid;
int atid;
int rx_qid;
u32 prev_seq;
u32 tcp_start_seq_number;
enum chcr_ktls_conn_state connection_state;
u8 tx_chan;
u8 smt_idx;
u8 port_id;
u8 ip_family;
};
struct chcr_ktls_ofld_ctx_tx {
struct tls_offload_context_tx base;
struct chcr_ktls_info *chcr_info;
};
static inline struct chcr_ktls_ofld_ctx_tx *
chcr_get_ktls_tx_context(struct tls_context *tls_ctx)
{
BUILD_BUG_ON(sizeof(struct chcr_ktls_ofld_ctx_tx) >
TLS_OFFLOAD_CONTEXT_SIZE_TX);
return container_of(tls_offload_ctx_tx(tls_ctx),
struct chcr_ktls_ofld_ctx_tx,
base);
}
static inline int chcr_get_first_rx_qid(struct adapter *adap)
{
/* u_ctx is saved in adap, fetch it */
struct uld_ctx *u_ctx = adap->uld[CXGB4_ULD_CRYPTO].handle;
if (!u_ctx)
return -1;
return u_ctx->lldi.rxq_ids[0];
}
void chcr_enable_ktls(struct adapter *adap);
void chcr_disable_ktls(struct adapter *adap);
#endif /* CONFIG_CHELSIO_TLS_DEVICE */
#endif /* __CHCR_KTLS_H__ */
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