Commit 0ac50506 authored by Seth Howell's avatar Seth Howell Committed by Jim Harris
Browse files

lib/nvmf: add a global list of targets 



As part of moving the nvmf rpc code to the library, we will need to make
it more inclusive of use cases outside of the example spdk nvmf_tgt
application. That application only supports a single nvmf target
structure. As such, many of the RPCs have this assumption built into
them.
In order to enable the multi-target use case, we need to configure a way
to translate between user supplied RPCs and actual target objects in the
library.

Change-Id: I5d3745afe9c2ca1c33f6e1a1bcc2b8bb3196ccd6
Signed-off-by: default avatarSeth Howell <seth.howell@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/465329


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: default avatarBen Walker <benjamin.walker@intel.com>
Reviewed-by: default avatarPaul Luse <paul.e.luse@intel.com>
parent 4ce77af6

lib/nvmf/nvmf.c

+6 −0
Original line number Diff line number Diff line
@@ -51,6 +51,8 @@ SPDK_LOG_REGISTER_COMPONENT("nvmf", SPDK_LOG_NVMF) 


#define SPDK_NVMF_DEFAULT_MAX_SUBSYSTEMS 1024



static TAILQ_HEAD(, spdk_nvmf_tgt) g_nvmf_tgts = TAILQ_HEAD_INITIALIZER(g_nvmf_tgts);



typedef void (*nvmf_qpair_disconnect_cpl)(void *ctx, int status);

static void spdk_nvmf_tgt_destroy_poll_group(void *io_device, void *ctx_buf);
@@ -243,6 +245,8 @@ spdk_nvmf_tgt_create(uint32_t max_subsystems) 
		return NULL;

	}



	TAILQ_INSERT_HEAD(&g_nvmf_tgts, tgt, link);



	spdk_io_device_register(tgt,

				spdk_nvmf_tgt_create_poll_group,

				spdk_nvmf_tgt_destroy_poll_group,
@@ -297,6 +301,8 @@ spdk_nvmf_tgt_destroy(struct spdk_nvmf_tgt *tgt, 
	tgt->destroy_cb_fn = cb_fn;

	tgt->destroy_cb_arg = cb_arg;



	TAILQ_REMOVE(&g_nvmf_tgts, tgt, link);



	spdk_io_device_unregister(tgt, spdk_nvmf_tgt_destroy_cb);

}

lib/nvmf/nvmf_internal.h

+2 −0
Original line number Diff line number Diff line
@@ -87,6 +87,8 @@ struct spdk_nvmf_tgt { 


	spdk_nvmf_tgt_destroy_done_fn		*destroy_cb_fn;

	void					*destroy_cb_arg;



	TAILQ_ENTRY(spdk_nvmf_tgt)		link;

};



struct spdk_nvmf_host {