mirror of
https://github.com/freebsd/freebsd-src.git
synced 2024-11-30 04:22:44 +00:00
1058c12197
- discover: Connects to a remote Discovery controller, fetches its Discovery Log Page, and enumerates the remote controllers described in the log page. The -v option can be used to display the Identify Controller data structure for the Discovery controller. This is only really useful for debugging. - connect: Connects to a remote I/O controller and establishes an association of an admin queue and a single I/O queue. The association is handed off to the in-kernel host to create a new nvmeX device. - connect-all: Connects to a Discovery controller and attempts to create an association with each I/O controller enumerated in the Discovery controller's Discovery Log Page. - reconnect: Establishes a new association with a remote I/O controller for an existing nvmeX device. This can be used to restore access to a remote I/O controller after the loss of a prior association due to a transport error, controller reboot, etc. - disconnect: Deletes one or more nvmeX devices after detaching its namespaces and terminating any active associations. The devices to delete can be identified by either a nvmeX device name or the NQN of the remote controller. - disconnect-all: Deletes all active associations with remote controllers. Reviewed by: imp Sponsored by: Chelsio Communications Differential Revision: https://reviews.freebsd.org/D44715
42 lines
1.5 KiB
C
42 lines
1.5 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
* Copyright (c) 2023-2024 Chelsio Communications, Inc.
|
|
* Written by: John Baldwin <jhb@FreeBSD.org>
|
|
*/
|
|
|
|
#ifndef __FABRICS_H__
|
|
#define __FABRICS_H__
|
|
|
|
/*
|
|
* Splits 'in_address' into separate 'address' and 'port' strings. If
|
|
* a separate buffer for the address was allocated, 'tofree' is set to
|
|
* the allocated buffer, otherwise 'tofree' is set to NULL.
|
|
*/
|
|
void nvmf_parse_address(const char *in_address, const char **address,
|
|
const char **port, char **tofree);
|
|
|
|
uint16_t nvmf_parse_cntlid(const char *cntlid);
|
|
|
|
/* Returns true if able to open a connection. */
|
|
bool tcp_qpair_params(struct nvmf_qpair_params *params, int adrfam,
|
|
const char *address, const char *port);
|
|
|
|
/* Connect to a discovery controller and return the Admin qpair. */
|
|
struct nvmf_qpair *connect_discovery_adminq(enum nvmf_trtype trtype,
|
|
const char *address, const char *port, const char *hostnqn);
|
|
|
|
/*
|
|
* Connect to an NVM controller establishing an Admin qpair and one or
|
|
* more I/O qpairs. The controller's controller data is returned in
|
|
* *cdata on success. Returns a non-zero value from <sysexits.h> on
|
|
* failure.
|
|
*/
|
|
int connect_nvm_queues(const struct nvmf_association_params *aparams,
|
|
enum nvmf_trtype trtype, int adrfam, const char *address,
|
|
const char *port, uint16_t cntlid, const char *subnqn, const char *hostnqn,
|
|
uint32_t kato, struct nvmf_qpair **admin, struct nvmf_qpair **io,
|
|
u_int num_io_queues, u_int queue_size, struct nvme_controller_data *cdata);
|
|
|
|
#endif /* !__FABRICS_H__ */
|