net/smc/smc.h

1 /* SPDX-License-Identifier: GPL-2.0 */
3  *  Shared Memory Communications over RDMA (SMC-R) and RoCE
116 /* in host byte order */
117 union smc_host_cursor {	/* SMC cursor - an offset in an RMBE */
130 /* in host byte order, except for flag bitfields in network byte order */
160 	struct smc_link		*lnk;		/* assigned SMC-R link */
177 	struct smc_host_cdc_msg	local_tx_ctrl;	/* host byte order staging
183 						/* prod crsr - confirmed by peer
185 	union smc_host_cursor	tx_curs_prep;	/* tx - prepared data
188 	union smc_host_cursor	tx_curs_sent;	/* tx - sent data
191 	union smc_host_cursor	tx_curs_fin;	/* tx - confirmed by peer
192 						 * snd-wnd-begin ?
196 	u16			tx_cdc_seq_fin;	/* sequence # - tx completed */
199 						 * - inc when post wqe,
200 						 * - dec on polled tx cqe
213 	union smc_host_cursor	urg_curs;	/* points at urgent byte */
221 	char			urg_rx_byte;	/* urgent byte */
237 	struct tasklet_struct	rx_tsklet;	/* Receiver tasklet for SMC-D */
239 						 * 0 for SMC-R, 32 for SMC-D
241 	u64			peer_token;	/* SMC-D token of peer */
260 	struct work_struct	connect_work;	/* handle non-blocking connect*/
283 						/* non-blocking connect in
296 	smc->clcsk_state_change	= NULL;  in smc_init_saved_callbacks()
297 	smc->clcsk_data_ready	= NULL;  in smc_init_saved_callbacks()
298 	smc->clcsk_write_space	= NULL;  in smc_init_saved_callbacks()
299 	smc->clcsk_error_report	= NULL;  in smc_init_saved_callbacks()
305 	       ((uintptr_t)clcsk->sk_user_data & ~SK_USER_DATA_NOCOPY);  in smc_clcsock_user_data()
339 /* convert an u32 value into network byte order, store it into a 3 byte field */
348 /* convert a received 3 byte field into host byte order*/
360 	return (smc->clcsock->sk->sk_policy[0] ||  in using_ipsec()
361 		smc->clcsock->sk->sk_policy[1]) ? true : false;  in using_ipsec()
385 	set_bit(flag, &sk->sk_flags);  in smc_sock_set_flag()