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| author | Maxim Levitsky | 2019-09-13 15:36:26 +0200 |
|---|---|---|
| committer | Max Reitz | 2019-10-28 11:34:30 +0100 |
| commit | e0dd95e3738c5868ddea932aa0f1998900eeaf58 (patch) | |
| tree | 864daac9d63c94a7a6d422d31c411d95a6995df5 /include | |
| parent | block/block-copy: increase buffered copy request (diff) | |
| download | qemu-e0dd95e3738c5868ddea932aa0f1998900eeaf58.tar.gz qemu-e0dd95e3738c5868ddea932aa0f1998900eeaf58.tar.xz qemu-e0dd95e3738c5868ddea932aa0f1998900eeaf58.zip | |
block/nvme: add support for write zeros
Signed-off-by: Maxim Levitsky <mlevitsk@redhat.com>
Message-id: 20190913133627.28450-2-mlevitsk@redhat.com
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/block/nvme.h | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/include/block/nvme.h b/include/block/nvme.h index 3ec8efcc43..ab5943b90a 100644 --- a/include/block/nvme.h +++ b/include/block/nvme.h @@ -653,12 +653,29 @@ typedef struct NvmeIdNs { uint8_t mc; uint8_t dpc; uint8_t dps; - uint8_t res30[98]; + + uint8_t nmic; + uint8_t rescap; + uint8_t fpi; + uint8_t dlfeat; + + uint8_t res34[94]; NvmeLBAF lbaf[16]; uint8_t res192[192]; uint8_t vs[3712]; } NvmeIdNs; + +/*Deallocate Logical Block Features*/ +#define NVME_ID_NS_DLFEAT_GUARD_CRC(dlfeat) ((dlfeat) & 0x10) +#define NVME_ID_NS_DLFEAT_WRITE_ZEROES(dlfeat) ((dlfeat) & 0x08) + +#define NVME_ID_NS_DLFEAT_READ_BEHAVIOR(dlfeat) ((dlfeat) & 0x7) +#define NVME_ID_NS_DLFEAT_READ_BEHAVIOR_UNDEFINED 0 +#define NVME_ID_NS_DLFEAT_READ_BEHAVIOR_ZEROES 1 +#define NVME_ID_NS_DLFEAT_READ_BEHAVIOR_ONES 2 + + #define NVME_ID_NS_NSFEAT_THIN(nsfeat) ((nsfeat & 0x1)) #define NVME_ID_NS_FLBAS_EXTENDED(flbas) ((flbas >> 4) & 0x1) #define NVME_ID_NS_FLBAS_INDEX(flbas) ((flbas & 0xf)) |