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bdev/nvme: Allow multiple bdevs per namespace

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Some future NVMe namespace types will be able to
create multiple bdevs per one namespace. This
patch makes it possible.

Signed-off-by: Maciej Szwed <maciej.szwed@intel.com>
Change-Id: I47b4c1fc545c59dcc3171ab0960f1835b6aa6d24
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/471620
Community-CI: Broadcom SPDK FC-NVMe CI <spdk-ci.pdl@broadcom.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
This commit is contained in:
Maciej Szwed 2019-10-17 13:33:25 +02:00 committed by Tomasz Zawadzki
parent 77dcf4534b
commit c30609c9ea
3 changed files with 35 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

38
module/bdev/nvme/bdev_nvme.c
View File

@ -258,6 +258,7 @@ bdev_nvme_destruct(void *ctx)
pthread_mutex_lock(&g_bdev_nvme_mutex);
nvme_bdev_ctrlr->ref--;
TAILQ_REMOVE(&nvme_disk->nvme_ns->bdevs, nvme_disk, tailq);
free(nvme_disk->disk.name);
free(nvme_disk);
if (nvme_bdev_ctrlr->ref == 0 && nvme_bdev_ctrlr->destruct) {
@ -801,7 +802,7 @@ nvme_ctrlr_create_bdev(struct nvme_bdev_ctrlr *nvme_bdev_ctrlr, struct nvme_bdev
return rc;
}
nvme_ns->bdev = bdev;
TAILQ_INSERT_TAIL(&nvme_ns->bdevs, bdev, tailq);
return 0;
}
@ -937,7 +938,12 @@ timeout_cb(void *cb_arg, struct spdk_nvme_ctrlr *ctrlr,
static void
nvme_ctrlr_deactivate_namespace(struct nvme_bdev_ns *ns)
{
spdk_bdev_unregister(&ns->bdev->disk, NULL, NULL);
struct nvme_bdev *bdev, *tmp;
TAILQ_FOREACH_SAFE(bdev, &ns->bdevs, tailq, tmp) {
spdk_bdev_unregister(&bdev->disk, NULL, NULL);
}
ns->active = false;
}
@ -958,6 +964,8 @@ nvme_ctrlr_update_ns_bdevs(struct nvme_bdev_ctrlr *nvme_bdev_ctrlr)
ns->id = nsid;
ns->ctrlr = nvme_bdev_ctrlr;
TAILQ_INIT(&ns->bdevs);
rc = nvme_ctrlr_create_bdev(nvme_bdev_ctrlr, ns);
if (rc) {
memset(ns, 0, sizeof(*ns));
@ -1114,6 +1122,7 @@ remove_cb(void *cb_ctx, struct spdk_nvme_ctrlr *ctrlr)
uint32_t i;
struct nvme_bdev_ctrlr *nvme_bdev_ctrlr;
struct nvme_bdev_ns *ns;
struct nvme_bdev *nvme_bdev, *tmp;
pthread_mutex_lock(&g_bdev_nvme_mutex);
TAILQ_FOREACH(nvme_bdev_ctrlr, &g_nvme_bdev_ctrlrs, tailq) {
@ -1131,7 +1140,9 @@ remove_cb(void *cb_ctx, struct spdk_nvme_ctrlr *ctrlr)
if (ns->active) {
assert(ns->id == nsid);
ns->active = false;
spdk_bdev_unregister(&ns->bdev->disk, NULL, NULL);
TAILQ_FOREACH_SAFE(nvme_bdev, &ns->bdevs, tailq, tmp) {
spdk_bdev_unregister(&nvme_bdev->disk, NULL, NULL);
}
}
}
@ -1262,6 +1273,7 @@ bdev_nvme_create_bdevs(struct nvme_async_probe_ctx *ctx, spdk_bdev_create_nvme_f
{
struct nvme_bdev_ctrlr *nvme_bdev_ctrlr;
struct nvme_bdev_ns *ns;
struct nvme_bdev *nvme_bdev, *tmp;
uint32_t i, nsid;
size_t j;
@ -1282,14 +1294,16 @@ bdev_nvme_create_bdevs(struct nvme_async_probe_ctx *ctx, spdk_bdev_create_nvme_f
continue;
}
assert(ns->id == nsid);
if (j < ctx->count) {
ctx->names[j] = ns->bdev->disk.name;
j++;
} else {
SPDK_ERRLOG("Maximum number of namespaces supported per NVMe controller is %du. Unable to return all names of created bdevs\n",
ctx->count);
cb_fn(cb_arg, 0, -ERANGE);
return;
TAILQ_FOREACH_SAFE(nvme_bdev, &ns->bdevs, tailq, tmp) {
if (j < ctx->count) {
ctx->names[j] = nvme_bdev->disk.name;
j++;
} else {
SPDK_ERRLOG("Maximum number of namespaces supported per NVMe controller is %du. Unable to return all names of created bdevs\n",
ctx->count);
cb_fn(cb_arg, 0, -ERANGE);
return;
}
}
}
@ -1691,6 +1705,8 @@ nvme_ctrlr_create_bdevs(struct nvme_bdev_ctrlr *nvme_bdev_ctrlr)
ns->id = nsid;
ns->ctrlr = nvme_bdev_ctrlr;
TAILQ_INIT(&ns->bdevs);
rc = nvme_ctrlr_create_bdev(nvme_bdev_ctrlr, ns);
if (rc == 0) {
ns->active = true;

5
module/bdev/nvme/common.h
View File

@ -49,7 +49,7 @@ struct nvme_bdev_ns {
bool active;
struct spdk_nvme_ns *ns;
struct nvme_bdev_ctrlr *ctrlr;
struct nvme_bdev *bdev;
TAILQ_HEAD(, nvme_bdev) bdevs;
};
struct nvme_bdev_ctrlr {
@ -84,8 +84,9 @@ struct nvme_bdev_ctrlr {
struct nvme_bdev {
struct spdk_bdev disk;
struct nvme_bdev_ctrlr *nvme_bdev_ctrlr;
struct nvme_bdev_ns *nvme_ns;
struct nvme_bdev_ctrlr *nvme_bdev_ctrlr;
TAILQ_ENTRY(nvme_bdev) tailq;
};
typedef void (*spdk_bdev_create_nvme_fn)(void *ctx, size_t bdev_count, int rc);

6
module/bdev/nvme/vbdev_opal.c
View File

@ -347,6 +347,7 @@ spdk_vbdev_opal_create(const char *nvme_ctrlr_name, uint32_t nsid, uint8_t locki
struct spdk_bdev_part *part_bdev;
SPDK_BDEV_PART_TAILQ *part_tailq;
struct spdk_vbdev_opal_config *cfg;
struct nvme_bdev *nvme_bdev;
if (nsid != NSID_SUPPORTED) {
SPDK_ERRLOG("nsid %d not supported", nsid);
@ -389,7 +390,10 @@ spdk_vbdev_opal_create(const char *nvme_ctrlr_name, uint32_t nsid, uint8_t locki
vbdev_opal_free_bdev(opal_bdev);
return -EINVAL;
}
base_bdev_name = nvme_ctrlr->namespaces[nsid - 1]->bdev->disk.name;
nvme_bdev = TAILQ_FIRST(&nvme_ctrlr->namespaces[nsid - 1]->bdevs);
assert(nvme_bdev != NULL);
base_bdev_name = nvme_bdev->disk.name;
/* traverse base list to see if part_base is already create for this base bdev */
TAILQ_FOREACH(opal_part_base, &g_opal_base, tailq) {