drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.h

Source file repositories/reference/linux-study-clean/drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.h

File Facts

System
Linux kernel
Corpus path
drivers/net/ethernet/chelsio/inline_crypto/ch_ktls/chcr_ktls.h
Extension
.h
Size
3023 bytes
Lines
122
Domain
Driver Families
Bucket
drivers/net
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

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_ctx_tx {
	struct chcr_ktls_info *chcr_info;
};

struct chcr_ktls_uld_ctx {
	struct list_head entry;
	struct cxgb4_lld_info lldi;
	struct xarray tid_list;
	bool detach;
};

static inline struct chcr_ktls_info *
__chcr_get_ktls_tx_info(struct tls_offload_context_tx *octx)
{
	struct chcr_ktls_ctx_tx *priv_ctx;

	BUILD_BUG_ON(sizeof(struct chcr_ktls_ctx_tx) > TLS_DRIVER_STATE_SIZE_TX);
	priv_ctx = (struct chcr_ktls_ctx_tx *)octx->driver_state;
	return priv_ctx->chcr_info;
}

static inline struct chcr_ktls_info *
chcr_get_ktls_tx_info(struct tls_context *tls_ctx)
{
	struct chcr_ktls_ctx_tx *priv_ctx;

	BUILD_BUG_ON(sizeof(struct chcr_ktls_ctx_tx) > TLS_DRIVER_STATE_SIZE_TX);
	priv_ctx = (struct chcr_ktls_ctx_tx *)__tls_driver_ctx(tls_ctx, TLS_OFFLOAD_CTX_DIR_TX);
	return priv_ctx->chcr_info;
}

static inline void
chcr_set_ktls_tx_info(struct tls_context *tls_ctx, struct chcr_ktls_info *chcr_info)
{
	struct chcr_ktls_ctx_tx *priv_ctx;

	priv_ctx = __tls_driver_ctx(tls_ctx, TLS_OFFLOAD_CTX_DIR_TX);
	priv_ctx->chcr_info = chcr_info;
}

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__ */

Annotation

Implementation Notes