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bdev/nvme: factor out NS bdev creation function

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Change-Id: I3504aa0251c35f641b40b5b3b1d64b2bb7337981
Signed-off-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/415116
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
This commit is contained in:
Changpeng Liu 2018-06-13 01:06:40 -04:00 committed by Jim Harris
parent e0b1704ae0
commit bad7601c8e
1 changed files with 66 additions and 52 deletions
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118
lib/bdev/nvme/bdev_nvme.c
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@ -126,6 +126,7 @@ static int bdev_nvme_io_passthru(struct nvme_bdev *nbdev, struct spdk_io_channel
static int bdev_nvme_io_passthru_md(struct nvme_bdev *nbdev, struct spdk_io_channel *ch,
struct nvme_bdev_io *bio,
struct spdk_nvme_cmd *cmd, void *buf, size_t nbytes, void *md_buf, size_t md_len);
static int nvme_ctrlr_create_bdev(struct nvme_ctrlr *nvme_ctrlr, uint32_t nsid);
static int
bdev_nvme_get_ctx_size(void)
@ -685,6 +686,66 @@ static const struct spdk_bdev_fn_table nvmelib_fn_table = {
.get_spin_time = bdev_nvme_get_spin_time,
};
static int
nvme_ctrlr_create_bdev(struct nvme_ctrlr *nvme_ctrlr, uint32_t nsid)
{
struct spdk_nvme_ctrlr *ctrlr = nvme_ctrlr->ctrlr;
struct nvme_bdev *bdev;
struct spdk_nvme_ns *ns;
const struct spdk_uuid *uuid;
const struct spdk_nvme_ctrlr_data *cdata;
int rc;
cdata = spdk_nvme_ctrlr_get_data(ctrlr);
ns = spdk_nvme_ctrlr_get_ns(ctrlr, nsid);
if (!ns) {
SPDK_DEBUGLOG(SPDK_LOG_BDEV_NVME, "Invalid NS %d\n", nsid);
return -EINVAL;
}
bdev = &nvme_ctrlr->bdevs[nsid - 1];
bdev->id = nsid;
bdev->nvme_ctrlr = nvme_ctrlr;
bdev->ns = ns;
nvme_ctrlr->ref++;
bdev->disk.name = spdk_sprintf_alloc("%sn%d", nvme_ctrlr->name, spdk_nvme_ns_get_id(ns));
if (!bdev->disk.name) {
return -ENOMEM;
}
bdev->disk.product_name = "NVMe disk";
bdev->disk.write_cache = 0;
if (cdata->vwc.present) {
/* Enable if the Volatile Write Cache exists */
bdev->disk.write_cache = 1;
}
bdev->disk.blocklen = spdk_nvme_ns_get_sector_size(ns);
bdev->disk.blockcnt = spdk_nvme_ns_get_num_sectors(ns);
bdev->disk.optimal_io_boundary = spdk_nvme_ns_get_optimal_io_boundary(ns);
uuid = spdk_nvme_ns_get_uuid(ns);
if (uuid != NULL) {
bdev->disk.uuid = *uuid;
}
bdev->disk.ctxt = bdev;
bdev->disk.fn_table = &nvmelib_fn_table;
bdev->disk.module = &nvme_if;
rc = spdk_bdev_register(&bdev->disk);
if (rc) {
free(bdev->disk.name);
memset(bdev, 0, sizeof(*bdev));
return rc;
}
bdev->active = true;
return 0;
}
static bool
hotplug_probe_cb(void *cb_ctx, const struct spdk_nvme_transport_id *trid,
struct spdk_nvme_ctrlr_opts *opts)
@ -1119,64 +1180,17 @@ bdev_nvme_library_fini(void)
static int
nvme_ctrlr_create_bdevs(struct nvme_ctrlr *nvme_ctrlr)
{
struct nvme_bdev *bdev;
struct spdk_nvme_ctrlr *ctrlr = nvme_ctrlr->ctrlr;
struct spdk_nvme_ns *ns;
const struct spdk_nvme_ctrlr_data *cdata;
const struct spdk_uuid *uuid;
int rc;
int bdev_created = 0;
uint32_t nsid;
cdata = spdk_nvme_ctrlr_get_data(ctrlr);
for (nsid = spdk_nvme_ctrlr_get_first_active_ns(ctrlr);
nsid != 0; nsid = spdk_nvme_ctrlr_get_next_active_ns(ctrlr, nsid)) {
ns = spdk_nvme_ctrlr_get_ns(ctrlr, nsid);
if (!ns) {
SPDK_DEBUGLOG(SPDK_LOG_BDEV_NVME, "Skipping invalid NS %d\n", nsid);
continue;
}
bdev = &nvme_ctrlr->bdevs[nsid - 1];
bdev->id = nsid;
bdev->nvme_ctrlr = nvme_ctrlr;
bdev->ns = ns;
nvme_ctrlr->ref++;
bdev->disk.name = spdk_sprintf_alloc("%sn%d", nvme_ctrlr->name, spdk_nvme_ns_get_id(ns));
if (!bdev->disk.name) {
break;
}
bdev->disk.product_name = "NVMe disk";
bdev->disk.write_cache = 0;
if (cdata->vwc.present) {
/* Enable if the Volatile Write Cache exists */
bdev->disk.write_cache = 1;
}
bdev->disk.blocklen = spdk_nvme_ns_get_sector_size(ns);
bdev->disk.blockcnt = spdk_nvme_ns_get_num_sectors(ns);
bdev->disk.optimal_io_boundary = spdk_nvme_ns_get_optimal_io_boundary(ns);
uuid = spdk_nvme_ns_get_uuid(ns);
if (uuid != NULL) {
bdev->disk.uuid = *uuid;
}
bdev->disk.ctxt = bdev;
bdev->disk.fn_table = &nvmelib_fn_table;
bdev->disk.module = &nvme_if;
rc = spdk_bdev_register(&bdev->disk);
if (rc) {
free(bdev->disk.name);
break;
}
bdev->active = true;
for (nsid = spdk_nvme_ctrlr_get_first_active_ns(nvme_ctrlr->ctrlr);
nsid != 0; nsid = spdk_nvme_ctrlr_get_next_active_ns(nvme_ctrlr->ctrlr, nsid)) {
rc = nvme_ctrlr_create_bdev(nvme_ctrlr, nsid);
if (rc == 0) {
bdev_created++;
}
}
return (bdev_created > 0) ? 0 : -1;
}