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nvme.h: add Write Zeroes definitions 

Add the command structure, optional command set support (ONCS) bit and
a new error code for the Write Zeroes command.

Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@hgst.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Chaitanya Kulkarni 2016-11-30 12:29:00 -08:00 committed by Jens Axboe
parent a6f0788ec2
commit 3b7c33b28a
1 changed files with 20 additions and 0 deletions
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20
include/linux/nvme.h
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@ -237,6 +237,7 @@ enum {
NVME_CTRL_ONCS_COMPARE = 1 << 0,
NVME_CTRL_ONCS_WRITE_UNCORRECTABLE = 1 << 1,
NVME_CTRL_ONCS_DSM = 1 << 2,
NVME_CTRL_ONCS_WRITE_ZEROES = 1 << 3,
NVME_CTRL_VWC_PRESENT = 1 << 0,
};
@ -543,6 +544,23 @@ struct nvme_dsm_range {
__le64 slba;
};
struct nvme_write_zeroes_cmd {
__u8 opcode;
__u8 flags;
__u16 command_id;
__le32 nsid;
__u64 rsvd2;
__le64 metadata;
union nvme_data_ptr dptr;
__le64 slba;
__le16 length;
__le16 control;
__le32 dsmgmt;
__le32 reftag;
__le16 apptag;
__le16 appmask;
};
/* Admin commands */
enum nvme_admin_opcode {
@ -839,6 +857,7 @@ struct nvme_command {
struct nvme_download_firmware dlfw;
struct nvme_format_cmd format;
struct nvme_dsm_cmd dsm;
struct nvme_write_zeroes_cmd write_zeroes;
struct nvme_abort_cmd abort;
struct nvme_get_log_page_command get_log_page;
struct nvmf_common_command fabrics;
@ -918,6 +937,7 @@ enum {
NVME_SC_BAD_ATTRIBUTES = 0x180,
NVME_SC_INVALID_PI = 0x181,
NVME_SC_READ_ONLY = 0x182,
NVME_SC_ONCS_NOT_SUPPORTED = 0x183,
/*
* I/O Command Set Specific - Fabrics commands: