xref: /freebsd/sbin/nvmecontrol/fabrics.h (revision 1058c121)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2023-2024 Chelsio Communications, Inc.
5  * Written by: John Baldwin <jhb@FreeBSD.org>
6  */
7 
8 #ifndef __FABRICS_H__
9 #define	__FABRICS_H__
10 
11 /*
12  * Splits 'in_address' into separate 'address' and 'port' strings.  If
13  * a separate buffer for the address was allocated, 'tofree' is set to
14  * the allocated buffer, otherwise 'tofree' is set to NULL.
15  */
16 void	nvmf_parse_address(const char *in_address, const char **address,
17     const char **port, char **tofree);
18 
19 uint16_t nvmf_parse_cntlid(const char *cntlid);
20 
21 /* Returns true if able to open a connection. */
22 bool	tcp_qpair_params(struct nvmf_qpair_params *params, int adrfam,
23     const char *address, const char *port);
24 
25 /* Connect to a discovery controller and return the Admin qpair. */
26 struct nvmf_qpair *connect_discovery_adminq(enum nvmf_trtype trtype,
27     const char *address, const char *port, const char *hostnqn);
28 
29 /*
30  * Connect to an NVM controller establishing an Admin qpair and one or
31  * more I/O qpairs.  The controller's controller data is returned in
32  * *cdata on success.  Returns a non-zero value from <sysexits.h> on
33  * failure.
34  */
35 int	connect_nvm_queues(const struct nvmf_association_params *aparams,
36     enum nvmf_trtype trtype, int adrfam, const char *address,
37     const char *port, uint16_t cntlid, const char *subnqn, const char *hostnqn,
38     uint32_t kato, struct nvmf_qpair **admin, struct nvmf_qpair **io,
39     u_int num_io_queues, u_int queue_size, struct nvme_controller_data *cdata);
40 
41 #endif /* !__FABRICS_H__ */
42