diff options
Diffstat (limited to 'drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.h')
| -rw-r--r-- | drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.h b/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.h new file mode 100644 index 000000000000..18b3b1f02415 --- /dev/null +++ b/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.h @@ -0,0 +1,101 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* Copyright (C) 2020 Chelsio Communications. All rights reserved. */ + +#ifndef __CHCR_KTLS_H__ +#define __CHCR_KTLS_H__ + +#include "cxgb4.h" +#include "t4_msg.h" +#include "t4_tcb.h" +#include "l2t.h" +#include "chcr_common.h" +#include "cxgb4_uld.h" +#include "clip_tbl.h" + +#define CHCR_KTLS_DRV_MODULE_NAME "ch_ktls" +#define CHCR_KTLS_DRV_VERSION "1.0.0.0-ko" +#define CHCR_KTLS_DRV_DESC "Chelsio NIC TLS ULD Driver" + +#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)) +#define FALLBACK 35 + +enum ch_ktls_open_state { + CH_KTLS_OPEN_SUCCESS = 0, + CH_KTLS_OPEN_PENDING = 1, + CH_KTLS_OPEN_FAILURE = 2, +}; + +struct chcr_ktls_info { + struct sock *sk; + spinlock_t lock; /* lock for pending_close */ + struct ktls_key_ctx key_ctx; + struct adapter *adap; + struct l2t_entry *l2te; + struct net_device *netdev; + struct completion completion; + 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; + u16 prev_win; + u8 tx_chan; + u8 smt_idx; + u8 port_id; + u8 ip_family; + u8 first_qset; + enum ch_ktls_open_state open_state; + bool pending_close; +}; + +struct chcr_ktls_ofld_ctx_tx { + struct tls_offload_context_tx base; + struct chcr_ktls_info *chcr_info; +}; + +struct chcr_ktls_uld_ctx { + struct list_head entry; + struct cxgb4_lld_info lldi; +}; + +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 chcr_ktls_uld_ctx *u_ctx = adap->uld[CXGB4_ULD_KTLS].handle; + + if (!u_ctx) + return -1; + return u_ctx->lldi.rxq_ids[0]; +} + +typedef int (*chcr_handler_func)(struct adapter *adap, unsigned char *input); +#endif /* __CHCR_KTLS_H__ */ |