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hw/block/nvme: report actual LBA data shift in LBAF

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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>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
This commit is contained in:
Dmitry Fomichev 2020-09-28 11:35:15 +09:00 committed by Klaus Jensen
parent dcd1496132
commit b865cabf73
1 changed files with 2 additions and 1 deletions
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3
hw/block/nvme-ns.c
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@ -31,12 +31,13 @@
static void nvme_ns_init(NvmeNamespace *ns)
{
NvmeIdNs *id_ns = &ns->id_ns;
int lba_index = NVME_ID_NS_FLBAS_INDEX(ns->id_ns.flbas);
if (blk_get_flags(ns->blkconf.blk) & BDRV_O_UNMAP) {
ns->id_ns.dlfeat = 0x9;
}
id_ns->lbaf[0].ds = BDRV_SECTOR_BITS;
id_ns->lbaf[lba_index].ds = 31 - clz32(ns->blkconf.logical_block_size);
id_ns->nsze = cpu_to_le64(nvme_ns_nlbas(ns));