xref: /titanic_51/usr/src/lib/libdtrace/common/scsi.d (revision be6802e44a2dc59129ccfb75410526d5c1d023ee)

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma	D depends_on module genunix
#pragma	D depends_on module stmf

/*
 * The scsicmd_t structure should be used by providers
 * to represent a SCSI command block (cdb).
 */
typedef struct scsicmd {
	uint64_t ic_len;	/* CDB length */
	uint8_t  *ic_cdb;	/* CDB data */
} scsicmd_t;

/*
 * Translator for scsicmd_t, translating from a scsi_task_t
 */
#pragma D binding "1.5" translator
translator scsicmd_t < scsi_task_t *T > {
	ic_len = T->task_cdb_length;
	ic_cdb = T->task_cdb;
};

/*
 * The xferinfo_t structure can be used by providers to
 * represent transfer information related to a single
 * buffer. The members describing the remote memory
 * are only valid if the transport layer is an RDMA-
 * capable transport like Infiniband
 */
typedef struct xferinfo {
	uintptr_t xfer_laddr;   /* local buffer address */
	uint32_t xfer_loffset;
	uint32_t xfer_lkey;     /* access control to local memory */
	uintptr_t xfer_raddr;   /* remote virtual address */
	uint32_t xfer_roffset;  /* offset from the remote address */
	uint32_t xfer_rkey;     /* access control to remote virtual address */
	uint32_t xfer_len;      /* transfer length */
	uint32_t xfer_type;     /* Read (0) or Write (1) */
} xferinfo_t;

/*
 * the iscsiinfo_t is used to provide identifying information about
 * the target and the initiator and also some PDU level information
 * such as lun, data length and sequence numbers.
 */
typedef struct iscsiinfo {
	string ii_target;	/* target iqn */
	string ii_initiator;	/* initiator iqn */
	string ii_isid;         /* initiator session identifier */
	string ii_tsih;         /* target session identifying handle */
	string ii_transport;    /* transport type ("iser-ib", "sockets") */

	uint64_t ii_lun;	/* target logical unit number */

	uint32_t ii_itt;	/* initiator task tag */
	uint32_t ii_ttt;	/* target transfer tag */

	uint32_t ii_cmdsn;	/* command sequence number */
	uint32_t ii_statsn;	/* status sequence number */
	uint32_t ii_datasn;	/* data sequence number */

	uint32_t ii_datalen;	/* length of data payload */
	uint32_t ii_flags;	/* probe-specific flags */
} iscsiinfo_t;