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Commit 3b7c33b2 authored by Chaitanya Kulkarni's avatar Chaitanya Kulkarni Committed by Jens Axboe
Browse files

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: default avatarChaitanya Kulkarni <chaitanya.kulkarni@hgst.com>
Reviewed-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarJens Axboe <axboe@fb.com>
parent a6f0788e

include/linux/nvme.h

+20 −0
Original line number Original line Diff line number Diff line
@@ -237,6 +237,7 @@ enum { 
	NVME_CTRL_ONCS_COMPARE			= 1 << 0,

	NVME_CTRL_ONCS_COMPARE			= 1 << 0,

	NVME_CTRL_ONCS_WRITE_UNCORRECTABLE	= 1 << 1,

	NVME_CTRL_ONCS_WRITE_UNCORRECTABLE	= 1 << 1,

	NVME_CTRL_ONCS_DSM			= 1 << 2,

	NVME_CTRL_ONCS_DSM			= 1 << 2,

	NVME_CTRL_ONCS_WRITE_ZEROES		= 1 << 3,

	NVME_CTRL_VWC_PRESENT			= 1 << 0,

	NVME_CTRL_VWC_PRESENT			= 1 << 0,

};

};
@@ -543,6 +544,23 @@ struct nvme_dsm_range { 
	__le64			slba;

	__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 */

/* Admin commands */





enum nvme_admin_opcode {

enum nvme_admin_opcode {
@@ -839,6 +857,7 @@ struct nvme_command { 
		struct nvme_download_firmware dlfw;

		struct nvme_download_firmware dlfw;

		struct nvme_format_cmd format;

		struct nvme_format_cmd format;

		struct nvme_dsm_cmd dsm;

		struct nvme_dsm_cmd dsm;

		struct nvme_write_zeroes_cmd write_zeroes;

		struct nvme_abort_cmd abort;

		struct nvme_abort_cmd abort;

		struct nvme_get_log_page_command get_log_page;

		struct nvme_get_log_page_command get_log_page;

		struct nvmf_common_command fabrics;

		struct nvmf_common_command fabrics;
@@ -918,6 +937,7 @@ enum { 
	NVME_SC_BAD_ATTRIBUTES		= 0x180,

	NVME_SC_BAD_ATTRIBUTES		= 0x180,

	NVME_SC_INVALID_PI		= 0x181,

	NVME_SC_INVALID_PI		= 0x181,

	NVME_SC_READ_ONLY		= 0x182,

	NVME_SC_READ_ONLY		= 0x182,

	NVME_SC_ONCS_NOT_SUPPORTED	= 0x183,





	/*

	/*

	 * I/O Command Set Specific - Fabrics commands:

	 * I/O Command Set Specific - Fabrics commands: