| Message ID | 20200923182021.3724-2-dmitry.fomichev@wdc.com |
|---|---|
| State | New |
| Headers | show |
| Series | hw/block/nvme: Support Namespace Types and Zoned Namespace Command Set | expand |
On Sep 24 03:20, Dmitry Fomichev wrote: > Calculate the data shift value to report based on the set value of > logical_block_size device property. > > In the process, use a local variable to calculate the LBA format > index instead of the hardcoded value 0. This makes the code more > readable and it will make it easier to add support for multiple LBA > formats in the future. > > Signed-off-by: Dmitry Fomichev <dmitry.fomichev@wdc.com> Yeah, using the standard approach of the logical_block_size parameter is probably preferable to an 'lbads' parameter as I've been doing. Reviewed-by: Klaus Jensen <k.jensen@samsung.com>
diff --git a/hw/block/nvme.c b/hw/block/nvme.c index 63078f6009..f60e968c4a 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -2203,6 +2203,7 @@ static void nvme_init_namespace(NvmeCtrl *n, NvmeNamespace *ns, Error **errp) { int64_t bs_size; NvmeIdNs *id_ns = &ns->id_ns; + int lba_index; bs_size = blk_getlength(n->conf.blk); if (bs_size < 0) { @@ -2212,7 +2213,8 @@ static void nvme_init_namespace(NvmeCtrl *n, NvmeNamespace *ns, Error **errp) n->ns_size = bs_size; - id_ns->lbaf[0].ds = BDRV_SECTOR_BITS; + lba_index = NVME_ID_NS_FLBAS_INDEX(ns->id_ns.flbas); + id_ns->lbaf[lba_index].ds = 31 - clz32(n->conf.logical_block_size); id_ns->nsze = cpu_to_le64(nvme_ns_nlbas(n, ns)); /* no thin provisioning */
Calculate the data shift value to report based on the set value of logical_block_size device property. In the process, use a local variable to calculate the LBA format index instead of the hardcoded value 0. This makes the code more readable and it will make it easier to add support for multiple LBA formats in the future. Signed-off-by: Dmitry Fomichev <dmitry.fomichev@wdc.com> --- hw/block/nvme.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)