Commit 539fc9cc authored by Jim Harris's avatar Jim Harris Committed by Tomasz Zawadzki
Browse files

nvme: add union spdk_nvme_cmd_cdw13 



Similar to cdw11 and cdw12 structures, this will allow easier use of
cdw13 which contains DSPEC (Directive Specific) values for write commands.

Signed-off-by: default avatarJim Harris <jim.harris@samsung.com>
Change-Id: Icac6df11d4d875c7066167ec6dbcce6c1842fddb
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/22343


Community-CI: Mellanox Build Bot
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarJacek Kalwas <jacek.kalwas@intel.com>
Reviewed-by: default avatarAnkit Kumar <ankit.kumar@samsung.com>
Reviewed-by: default avatarKonrad Sztyber <konrad.sztyber@intel.com>
Reviewed-by: default avatarAleksey Marchuk <alexeymar@nvidia.com>
parent 1ba9e7c6

include/spdk/nvme_spec.h

+19 −2
Original line number Diff line number Diff line
@@ -1364,6 +1364,19 @@ union spdk_nvme_cmd_cdw12 { 
};

SPDK_STATIC_ASSERT(sizeof(union spdk_nvme_cmd_cdw12) == 4, "Incorrect size");



union spdk_nvme_cmd_cdw13 {

	uint32_t raw;



	struct {

		/* Dataset Management */

		uint32_t dsm       : 8;

		uint32_t reserved  : 8;

		/* Directive Specific */

		uint32_t dspec     : 16;

	} write;

};

SPDK_STATIC_ASSERT(sizeof(union spdk_nvme_cmd_cdw13) == 4, "Incorrect size");



struct spdk_nvme_cmd {

	/* dword 0 */

	uint16_t opc	:  8;	/* opcode */
@@ -1407,8 +1420,12 @@ struct spdk_nvme_cmd { 
		uint32_t cdw12;

		union spdk_nvme_cmd_cdw12 cdw12_bits;

	};

	/* dword 13-15 */

	uint32_t cdw13;		/* command-specific */

	/* command-specific */

	union {

		uint32_t cdw13;

		union spdk_nvme_cmd_cdw13 cdw13_bits;

	};

	/* dword 14-15 */

	uint32_t cdw14;		/* command-specific */

	uint32_t cdw15;		/* command-specific */

};