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nbd: add JSON config dump

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Change-Id: Ib3c97c6d9152a3f61a56d640c875151bdab40278
Signed-off-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-on: https://review.gerrithub.io/408320
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This commit is contained in:
Pawel Wodkowski 2018-04-19 17:48:48 +02:00 committed by Daniel Verkamp
parent a77cd3f75c
commit 5b424282c1
3 changed files with 33 additions and 0 deletions
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10
include/spdk/nbd.h
View File

@ -44,6 +44,8 @@ extern "C" {
struct spdk_bdev;
struct spdk_nbd_disk;
struct spdk_json_write_ctx;
struct spdk_event;
/**
* Initialize the network block device layer.
@ -75,6 +77,14 @@ struct spdk_nbd_disk *spdk_nbd_start(const char *bdev_name, const char *nbd_path
*/
void spdk_nbd_stop(struct spdk_nbd_disk *nbd);
/**
* Write NBD subsystem configuration into provided JSON context.
*
* \param w JSON write context
* \param done_ev call this event when done.
*/
void spdk_nbd_write_config_json(struct spdk_json_write_ctx *w, struct spdk_event *done_ev);
#ifdef __cplusplus
}
#endif

1
lib/event/subsystems/nbd/nbd.c
View File

@ -59,6 +59,7 @@ static struct spdk_subsystem g_spdk_subsystem_nbd = {
.init = spdk_nbd_subsystem_init,
.fini = spdk_nbd_subsystem_fini,
.config = NULL,
.write_config_json = spdk_nbd_write_config_json,
};
SPDK_SUBSYSTEM_REGISTER(g_spdk_subsystem_nbd);

22
lib/nbd/nbd.c
View File

@ -44,6 +44,7 @@
#include "spdk/log.h"
#include "spdk/util.h"
#include "spdk/io_channel.h"
#include "spdk/event.h"
#include "spdk_internal/log.h"
#include "spdk/queue.h"
@ -211,6 +212,27 @@ spdk_nbd_disk_get_bdev_name(struct spdk_nbd_disk *nbd)
return spdk_bdev_get_name(nbd->bdev);
}
void
spdk_nbd_write_config_json(struct spdk_json_write_ctx *w, struct spdk_event *done_ev)
{
struct spdk_nbd_disk *nbd;
TAILQ_FOREACH(nbd, &g_spdk_nbd.disk_head, tailq) {
spdk_json_write_object_begin(w);
spdk_json_write_named_string(w, "method", "start_nbd_disk");
spdk_json_write_named_object_begin(w, "params");
spdk_json_write_named_string(w, "nbd_device", spdk_nbd_disk_get_nbd_path(nbd));
spdk_json_write_named_string(w, "bdev_name", spdk_nbd_disk_get_bdev_name(nbd));
spdk_json_write_object_end(w);
spdk_json_write_object_end(w);
}
spdk_event_call(done_ev);
}
void
nbd_disconnect(struct spdk_nbd_disk *nbd)
{