Release 4.18 net/smc/smc_llc.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 *  Shared Memory Communications over RDMA (SMC-R) and RoCE
 *
 *  Definitions for LLC (link layer control) message handling
 *
 *  Copyright IBM Corp. 2016
 *
 *  Author(s):  Klaus Wacker <Klaus.Wacker@de.ibm.com>
 *              Ursula Braun <ubraun@linux.vnet.ibm.com>
 */

#ifndef SMC_LLC_H

#define SMC_LLC_H

#include "smc_wr.h"


#define SMC_LLC_FLAG_RESP		0x80


#define SMC_LLC_WAIT_FIRST_TIME		(5 * HZ)

#define SMC_LLC_WAIT_TIME		(2 * HZ)


enum smc_llc_reqresp {
	
SMC_LLC_REQ,
	
SMC_LLC_RESP
};


enum smc_llc_msg_type {
	
SMC_LLC_CONFIRM_LINK		= 0x01,
	
SMC_LLC_ADD_LINK		= 0x02,
	
SMC_LLC_DELETE_LINK		= 0x04,
	
SMC_LLC_CONFIRM_RKEY		= 0x06,
	
SMC_LLC_TEST_LINK		= 0x07,
	
SMC_LLC_CONFIRM_RKEY_CONT	= 0x08,
	
SMC_LLC_DELETE_RKEY		= 0x09,
};

/* transmit */
int smc_llc_send_confirm_link(struct smc_link *lnk, u8 mac[], union ib_gid *gid,
			      enum smc_llc_reqresp reqresp);
int smc_llc_send_add_link(struct smc_link *link, u8 mac[], union ib_gid *gid,
			  enum smc_llc_reqresp reqresp);
int smc_llc_send_delete_link(struct smc_link *link,
			     enum smc_llc_reqresp reqresp);
int smc_llc_link_init(struct smc_link *link);
void smc_llc_link_active(struct smc_link *link, int testlink_time);
void smc_llc_link_inactive(struct smc_link *link);
void smc_llc_link_clear(struct smc_link *link);
int smc_llc_do_confirm_rkey(struct smc_link *link,
			    struct smc_buf_desc *rmb_desc);
int smc_llc_init(void) __init;

#endif /* SMC_LLC_H */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
Karsten Graul
116
63.04%
7
77.78%
Ursula Braun
67
36.41%
1
11.11%
Greg Kroah-Hartman
1
0.54%
1
11.11%
Total
184
100.00%
9
100.00%
Directory: net/smc

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