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nvmf: add functions for iterating over transports

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Part of a larger series aimed at exposing NVMe-oF transports though rpc
and spdkcli. This is in line with the goal of initializing all NVMe-oF
options on a per-transport basis.

Change-Id: I4f07d58d49b925cf51df3980d2e2161c50169cee
Signed-off-by: Seth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/430622
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This commit is contained in:
Seth Howell 2018-10-23 14:37:22 -07:00 committed by Ben Walker
parent 91420344f4
commit 433a1e7b67
3 changed files with 64 additions and 0 deletions
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3
include/spdk/nvme.h
View File

@ -192,6 +192,9 @@ enum spdk_nvme_transport_type {
SPDK_NVME_TRANSPORT_FC = SPDK_NVMF_TRTYPE_FC,
};
/* typedef added for coding style reasons */
typedef enum spdk_nvme_transport_type spdk_nvme_transport_type_t;
/**
* NVMe transport identifier.
*

37
include/spdk/nvmf.h
View File

@ -747,6 +747,43 @@ int spdk_nvmf_transport_destroy(struct spdk_nvmf_transport *transport);
struct spdk_nvmf_transport *spdk_nvmf_tgt_get_transport(struct spdk_nvmf_tgt *tgt,
enum spdk_nvme_transport_type type);
/**
* Get the first transport registered with the given target
*
* \param tgt The NVMe-oF target
*
* \return The first transport registered on the target
*/
struct spdk_nvmf_transport *spdk_nvmf_transport_get_first(struct spdk_nvmf_tgt *tgt);
/**
* Get the next transport in a target's list.
*
* \param transport A handle to a transport object
*
* \return The next transport associated with the NVMe-oF target
*/
struct spdk_nvmf_transport *spdk_nvmf_transport_get_next(struct spdk_nvmf_transport *transport);
/**
* Get the opts for a given transport.
*
* \param transport The transport to query
*
* \return The opts associated with the given transport
*/
const struct spdk_nvmf_transport_opts *spdk_nvmf_get_transport_opts(struct spdk_nvmf_transport
*transport);
/**
* Get the transport type for a given transport.
*
* \param transport The transport to query
*
* \return the transport type for the given transport
*/
spdk_nvme_transport_type_t spdk_nvmf_get_transport_type(struct spdk_nvmf_transport *transport);
/**
* Function to be called once transport add is complete
*

24
lib/nvmf/transport.c
View File

@ -62,6 +62,18 @@ spdk_nvmf_get_transport_ops(enum spdk_nvme_transport_type type)
return NULL;
}
const struct spdk_nvmf_transport_opts *
spdk_nvmf_get_transport_opts(struct spdk_nvmf_transport *transport)
{
return &transport->opts;
}
spdk_nvme_transport_type_t
spdk_nvmf_get_transport_type(struct spdk_nvmf_transport *transport)
{
return transport->ops->type;
}
struct spdk_nvmf_transport *
spdk_nvmf_transport_create(enum spdk_nvme_transport_type type,
struct spdk_nvmf_transport_opts *opts)
@ -100,6 +112,18 @@ spdk_nvmf_transport_create(enum spdk_nvme_transport_type type,
return transport;
}
struct spdk_nvmf_transport *
spdk_nvmf_transport_get_first(struct spdk_nvmf_tgt *tgt)
{
return TAILQ_FIRST(&tgt->transports);
}
struct spdk_nvmf_transport *
spdk_nvmf_transport_get_next(struct spdk_nvmf_transport *transport)
{
return TAILQ_NEXT(transport, link);
}
int
spdk_nvmf_transport_destroy(struct spdk_nvmf_transport *transport)
{