mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-14 04:56:44 +07:00
a3ac249a1a
Current design enables ktls setting from start, which is not efficient. Now the feature will be enabled when user demands TLS offload on any interface. v1->v2: - taking ULD module refcount till any single connection exists. - taking rtnl_lock() before clearing tls_devops. v2->v3: - cxgb4 is now registering to tlsdev_ops. - module refcount inc/dec in chcr. - refcount is only for connections. - removed new code from cxgb_set_feature(). v3->v4: - fixed warning message. Signed-off-by: Rohit Maheshwari <rohitm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
104 lines
2.7 KiB
C
104 lines
2.7 KiB
C
/* 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"
|
|
#include "cxgb4_uld.h"
|
|
|
|
#define CHCR_TCB_STATE_CLOSED 0
|
|
#define CHCR_KTLS_KEY_CTX_LEN 16
|
|
#define CHCR_SET_TCB_FIELD_LEN sizeof(struct cpl_set_tcb_field)
|
|
#define CHCR_PLAIN_TX_DATA_LEN (sizeof(struct fw_ulptx_wr) +\
|
|
sizeof(struct ulp_txpkt) +\
|
|
sizeof(struct ulptx_idata) +\
|
|
sizeof(struct cpl_tx_data))
|
|
|
|
#define CHCR_KTLS_WR_SIZE (CHCR_PLAIN_TX_DATA_LEN +\
|
|
sizeof(struct cpl_tx_sec_pdu))
|
|
|
|
enum chcr_ktls_conn_state {
|
|
KTLS_CONN_CLOSED,
|
|
KTLS_CONN_ACT_OPEN_REQ,
|
|
KTLS_CONN_ACT_OPEN_RPL,
|
|
KTLS_CONN_SET_TCB_REQ,
|
|
KTLS_CONN_SET_TCB_RPL,
|
|
KTLS_CONN_TX_READY,
|
|
};
|
|
|
|
struct chcr_ktls_info {
|
|
struct sock *sk;
|
|
spinlock_t lock; /* state machine lock */
|
|
struct ktls_key_ctx key_ctx;
|
|
struct adapter *adap;
|
|
struct l2t_entry *l2te;
|
|
struct net_device *netdev;
|
|
u64 iv;
|
|
u64 record_no;
|
|
int tid;
|
|
int atid;
|
|
int rx_qid;
|
|
u32 iv_size;
|
|
u32 prev_seq;
|
|
u32 prev_ack;
|
|
u32 salt_size;
|
|
u32 key_ctx_len;
|
|
u32 scmd0_seqno_numivs;
|
|
u32 scmd0_ivgen_hdrlen;
|
|
u32 tcp_start_seq_number;
|
|
u32 scmd0_short_seqno_numivs;
|
|
u32 scmd0_short_ivgen_hdrlen;
|
|
enum chcr_ktls_conn_state connection_state;
|
|
u16 prev_win;
|
|
u8 tx_chan;
|
|
u8 smt_idx;
|
|
u8 port_id;
|
|
u8 ip_family;
|
|
u8 first_qset;
|
|
};
|
|
|
|
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];
|
|
}
|
|
|
|
int chcr_ktls_cpl_act_open_rpl(struct adapter *adap, unsigned char *input);
|
|
int chcr_ktls_cpl_set_tcb_rpl(struct adapter *adap, unsigned char *input);
|
|
int chcr_ktls_xmit(struct sk_buff *skb, struct net_device *dev);
|
|
int chcr_ktls_dev_add(struct net_device *netdev, struct sock *sk,
|
|
enum tls_offload_ctx_dir direction,
|
|
struct tls_crypto_info *crypto_info,
|
|
u32 start_offload_tcp_sn);
|
|
void chcr_ktls_dev_del(struct net_device *netdev,
|
|
struct tls_context *tls_ctx,
|
|
enum tls_offload_ctx_dir direction);
|
|
#endif /* CONFIG_CHELSIO_TLS_DEVICE */
|
|
#endif /* __CHCR_KTLS_H__ */
|