Commit c25e9b24 authored by Changpeng Liu's avatar Changpeng Liu Committed by Jim Harris
Browse files

scsi: add persistent reserve in command with report capabilities support 



Change-Id: I676c385ffd51c0ad2c606f948f21beb031ef4c95
Signed-off-by: default avatarChangpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/436095


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
parent fecac0d8

lib/scsi/scsi_pr.c

+26 −0
Original line number Diff line number Diff line
@@ -618,6 +618,29 @@ spdk_scsi_pr_in_read_reservations(struct spdk_scsi_task *task, 
	return sizeof(param->header);

}



static int

spdk_scsi_pr_in_report_capabilities(struct spdk_scsi_task *task,

				    uint8_t *data, uint16_t data_len)

{

	struct spdk_scsi_pr_in_report_capabilities_data *param;



	SPDK_DEBUGLOG(SPDK_LOG_SCSI, "PR IN REPORT CAPABILITIES\n");

	param = (struct spdk_scsi_pr_in_report_capabilities_data *)data;



	memset(param, 0, sizeof(*param));

	/* TODO: can support more capabilities bits */

	to_be16(&param->length, sizeof(*param));

	param->tmv = 1;

	param->wr_ex = 1;

	param->ex_ac = 1;

	param->wr_ex_ro = 1;

	param->ex_ac_ro = 1;

	param->wr_ex_ar = 1;

	param->ex_ac_ar = 1;



	return sizeof(*param);

}



int

spdk_scsi_pr_in(struct spdk_scsi_task *task,

		uint8_t *cdb, uint8_t *data,
@@ -641,6 +664,9 @@ spdk_scsi_pr_in(struct spdk_scsi_task *task, 
		}

		rc = spdk_scsi_pr_in_read_reservations(task, data, data_len);

		break;

	case SPDK_SCSI_PR_IN_REPORT_CAPABILITIES:

		rc = spdk_scsi_pr_in_report_capabilities(task, data, data_len);

		break;

	default:

		goto invalid;

	}