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hw/nvme: add support for zoned random write area

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Add support for TP 4076 ("Zoned Random Write Area"), v2021.08.23
("Ratified").

This adds three new namespace parameters: "zoned.numzrwa" (number of
zrwa resources, i.e. number of zones that can have a zrwa),
"zoned.zrwas" (zrwa size in LBAs), "zoned.zrwafg" (granularity in LBAs
for flushes).

Reviewed-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Klaus Jensen <k.jensen@samsung.com>
This commit is contained in:
Klaus Jensen 2021-03-04 08:40:11 +01:00
parent 25872031e1
commit e321b4cdc2
5 changed files with 237 additions and 20 deletions
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10
hw/nvme/nvme.h
View file

@ -114,6 +114,10 @@ typedef struct NvmeNamespaceParams {
uint32_t max_active_zones;
uint32_t max_open_zones;
uint32_t zd_extension_size;
uint32_t numzrwa;
uint64_t zrwas;
uint64_t zrwafg;
} NvmeNamespaceParams;
typedef struct NvmeNamespace {
@ -130,6 +134,12 @@ typedef struct NvmeNamespace {
uint16_t status;
int attached;
struct {
uint16_t zrwas;
uint16_t zrwafg;
uint32_t numzrwa;
} zns;
QTAILQ_ENTRY(NvmeNamespace) entry;
NvmeIdNsZoned *id_ns_zoned;