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hw/block/nvme: pull lba format initialization 

Pull lba format initialization code into separate function in
preparation for Format NVM support.

Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
Reviewed-by: Minwoo Im <minwoo.im.dev@gmail.com>
This commit is contained in:
Klaus Jensen 2021-03-08 09:25:26 +01:00
parent 397fbb5b32
commit 516990f4df
1 changed files with 41 additions and 33 deletions
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74
hw/block/nvme-ns.c
View File

@ -32,17 +32,55 @@
#define MIN_DISCARD_GRANULARITY (4 * KiB)
static void nvme_ns_init_format(NvmeNamespace *ns)
{
NvmeIdNs *id_ns = &ns->id_ns;
BlockDriverInfo bdi;
int npdg, nlbas, ret;
nlbas = nvme_ns_nlbas(ns);
id_ns->nsze = cpu_to_le64(nlbas);
/* no thin provisioning */
id_ns->ncap = id_ns->nsze;
id_ns->nuse = id_ns->ncap;
ns->mdata_offset = nvme_l2b(ns, nlbas);
npdg = ns->blkconf.discard_granularity / nvme_lsize(ns);
ret = bdrv_get_info(blk_bs(ns->blkconf.blk), &bdi);
if (ret >= 0 && bdi.cluster_size > ns->blkconf.discard_granularity) {
npdg = bdi.cluster_size / nvme_lsize(ns);
}
id_ns->npda = id_ns->npdg = npdg - 1;
}
static int nvme_ns_init(NvmeNamespace *ns, Error **errp)
{
BlockDriverInfo bdi;
NvmeIdNs *id_ns = &ns->id_ns;
int npdg, nlbas;
uint8_t ds;
uint16_t ms;
int i;
ns->csi = NVME_CSI_NVM;
ns->id_ns.dlfeat = 0x1;
/* support DULBE and I/O optimization fields */
id_ns->nsfeat |= (0x4 | 0x10);
if (nvme_ns_shared(ns)) {
id_ns->nmic |= NVME_NMIC_NS_SHARED;
}
/* simple copy */
id_ns->mssrl = cpu_to_le16(ns->params.mssrl);
id_ns->mcl = cpu_to_le32(ns->params.mcl);
id_ns->msrc = ns->params.msrc;
ds = 31 - clz32(ns->blkconf.logical_block_size);
ms = ns->params.ms;
@ -96,37 +134,7 @@ static int nvme_ns_init(NvmeNamespace *ns, Error **errp)
id_ns->flbas |= id_ns->nlbaf;
lbaf_found:
nlbas = nvme_ns_nlbas(ns);
id_ns->nsze = cpu_to_le64(nlbas);
ns->mdata_offset = nvme_l2b(ns, nlbas);
ns->csi = NVME_CSI_NVM;
/* no thin provisioning */
id_ns->ncap = id_ns->nsze;
id_ns->nuse = id_ns->ncap;
/* support DULBE and I/O optimization fields */
id_ns->nsfeat |= (0x4 | 0x10);
npdg = ns->blkconf.discard_granularity / nvme_lsize(ns);
if (bdrv_get_info(blk_bs(ns->blkconf.blk), &bdi) >= 0 &&
bdi.cluster_size > ns->blkconf.discard_granularity) {
npdg = bdi.cluster_size / nvme_lsize(ns);
}
id_ns->npda = id_ns->npdg = npdg - 1;
if (nvme_ns_shared(ns)) {
id_ns->nmic |= NVME_NMIC_NS_SHARED;
}
/* simple copy */
id_ns->mssrl = cpu_to_le16(ns->params.mssrl);
id_ns->mcl = cpu_to_le32(ns->params.mcl);
id_ns->msrc = ns->params.msrc;
nvme_ns_init_format(ns);
return 0;
}