xref: /titanic_41/usr/src/lib/libdtrace/common/scsi.d (revision be6802e44a2dc59129ccfb75410526d5c1d023ee)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 
22 /*
23  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma	D depends_on module genunix
28 #pragma	D depends_on module stmf
29 
30 /*
31  * The scsicmd_t structure should be used by providers
32  * to represent a SCSI command block (cdb).
33  */
34 typedef struct scsicmd {
35 	uint64_t ic_len;	/* CDB length */
36 	uint8_t  *ic_cdb;	/* CDB data */
37 } scsicmd_t;
38 
39 /*
40  * Translator for scsicmd_t, translating from a scsi_task_t
41  */
42 #pragma D binding "1.5" translator
43 translator scsicmd_t < scsi_task_t *T > {
44 	ic_len = T->task_cdb_length;
45 	ic_cdb = T->task_cdb;
46 };
47 
48 /*
49  * The xferinfo_t structure can be used by providers to
50  * represent transfer information related to a single
51  * buffer. The members describing the remote memory
52  * are only valid if the transport layer is an RDMA-
53  * capable transport like Infiniband
54  */
55 typedef struct xferinfo {
56 	uintptr_t xfer_laddr;   /* local buffer address */
57 	uint32_t xfer_loffset;
58 	uint32_t xfer_lkey;     /* access control to local memory */
59 	uintptr_t xfer_raddr;   /* remote virtual address */
60 	uint32_t xfer_roffset;  /* offset from the remote address */
61 	uint32_t xfer_rkey;     /* access control to remote virtual address */
62 	uint32_t xfer_len;      /* transfer length */
63 	uint32_t xfer_type;     /* Read (0) or Write (1) */
64 } xferinfo_t;
65 
66 /*
67  * the iscsiinfo_t is used to provide identifying information about
68  * the target and the initiator and also some PDU level information
69  * such as lun, data length and sequence numbers.
70  */
71 typedef struct iscsiinfo {
72 	string ii_target;	/* target iqn */
73 	string ii_initiator;	/* initiator iqn */
74 	string ii_isid;         /* initiator session identifier */
75 	string ii_tsih;         /* target session identifying handle */
76 	string ii_transport;    /* transport type ("iser-ib", "sockets") */
77 
78 	uint64_t ii_lun;	/* target logical unit number */
79 
80 	uint32_t ii_itt;	/* initiator task tag */
81 	uint32_t ii_ttt;	/* target transfer tag */
82 
83 	uint32_t ii_cmdsn;	/* command sequence number */
84 	uint32_t ii_statsn;	/* status sequence number */
85 	uint32_t ii_datasn;	/* data sequence number */
86 
87 	uint32_t ii_datalen;	/* length of data payload */
88 	uint32_t ii_flags;	/* probe-specific flags */
89 } iscsiinfo_t;
90