6415440 iSCSI target needs persistent reserve support

2 files changed, 403 insertions, 0 deletions

diff --git a/usr/src/uts/common/sys/scsi/generic/commands.h b/usr/src/uts/common/sys/scsi/generic/commands.h
index 6dffa0495b..02732fe83c 100644
--- a/usr/src/uts/common/sys/scsi/generic/commands.h
+++ b/usr/src/uts/common/sys/scsi/generic/commands.h
@@ -332,6 +332,11 @@ extern "C" {
 #define	SCMD_GROUP5		0xA0
 #define	SCMD_REPORT_LUNS	0xA0
 #define	SCMD_REPORT_TARGET_PORT_GROUPS	0xA3
+#define	SCMD_SET_DEVICE		0xA4
+#define		SCMD_SET_DEVICE_IDENTIFIER	0x06
+#define		SCMD_SET_PRIORITY		0x0e
+#define		SCMD_SET_TARGET_PORT_GROUPS	0x0a
+#define		SCMD_SET_TIMESTAMP		0x0f
 #define	SCMD_READ_G5		0xA8
 #define	SCMD_WRITE_G5		0xAA
 #define	SCMD_READ_MEDIA_SERIAL	0xAB
diff --git a/usr/src/uts/common/sys/scsi/generic/persist.h b/usr/src/uts/common/sys/scsi/generic/persist.h
new file mode 100644
index 0000000000..613c91cf12
--- /dev/null
+++ b/usr/src/uts/common/sys/scsi/generic/persist.h
@@ -0,0 +1,398 @@
+/*
+ * 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 2007 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef	_SYS_SCSI_GENERIC_PERSIST_H
+#define	_SYS_SCSI_GENERIC_PERSIST_H
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#ifdef	__cplusplus
+extern "C" {
+#endif
+
+/*
+ * SCSI Persistence Data
+ *
+ * Format of data returned as a result of PERSISTENCE RESERVER { IN | OUT }
+ */
+
+/*
+ * SPC-3 revision 23, Section 6.11.1, Table 102
+ * Persistent Reservations
+ * Persistent Reserve In service actions
+ */
+#define	PR_IN_READ_KEYS		0x0 /* Read all registered reservation keys */
+#define	PR_IN_READ_RESERVATION	0x1 /* Reads th persistent reservations */
+#define	PR_IN_REPORT_CAPABILITIES 0x2 /* Returns capability information */
+#define	PR_IN_READ_FULL_STATUS	0x3 /* Reads complete information about all */
+				    /* registrations and the persistent */
+				    /* reservations, if any */
+/*
+ * SPC-3 revision 23, Section 6.11.3.3, Table 106
+ * Persistent reservation scope codes
+ */
+#define	PR_LU_SCOPE		0x0	/* Persistent reservation applies to */
+					/* full logical unit */
+/*
+ * SPC-3 revision 23, Section 6.11.3.4, Table 107
+ * Persistent Reservations
+ * Persistent reservation type codes
+ */
+#define	PGR_TYPE_WR_EX		0x1	/* Write Exclusive */
+#define	PGR_TYPE_EX_AC		0x3	/* Exclusive Access */
+#define	PGR_TYPE_WR_EX_RO	0x5	/* Write Exclusive, Registrants Only */
+#define	PGR_TYPE_EX_AC_RO	0x6	/* Exclusive Access, Registrants Only */
+#define	PGR_TYPE_WR_EX_AR	0x7	/* Write Exclusive, All Registrants */
+#define	PGR_TYPE_EX_AC_AR	0x8	/* Exclusive Access, All Registrants */
+
+/*
+ * Information obtained from:
+ *	SPC-3, Revision 23
+ *	Section 6.11.5 PERSISTENCE RESERVE IN
+ *	Table 111 - full status descriptor format
+ */
+/* Table 289 - iSCSI Initiator Device TransportID format */
+
+#define	iSCSI_PROTOCOL_ID	0x5	/* Table 262 - iSCSI Protocol ID  */
+#define	WW_UID_DEVICE_NAME	0x0	/* Table 288 - iSCSI Transport IDs */
+
+
+#if defined(_BIT_FIELDS_LTOH)
+/*
+ * Information obtained from:
+ *	SPC-3, Revision 23
+ *	Section 6.11.1 PERSISTENCE RESERVE IN
+ *	Table 101 - PERSISTENCE RESERVE IN command
+ */
+typedef struct scsi_cdb_prin {
+	uint8_t			cmd;
+	uint8_t			action : 5,
+				resbits : 3;
+	uint8_t			resbytes[5];
+	uint8_t			alloc_len[2];
+	uint8_t			control;
+} scsi_cdb_prin_t;
+
+/*
+ * Information obtained from:
+ *	SPC-3, Revision 23
+ *	Section 6.11.2 PERSISTENCE RESERVE IN
+ *	Table 103/104/105 - parameter data for READS KEYS
+ */
+typedef struct scsi_prin_rsrvdesc {
+	uint8_t			reservation_key[8];
+	uint8_t			obsolete1[4];
+	uint8_t			resbytes;
+	uint8_t			type : 4,
+				scope : 4;
+	uint8_t			obsolete2[2];
+} scsi_prin_rsrvdesc_t;
+typedef struct scsi_prin_readrsrv {
+	uint8_t			PRgeneration[4];
+	uint8_t			add_len[4];
+	scsi_prin_rsrvdesc_t	res_key_list[1];
+} scsi_prin_readrsrv_t;
+
+/*
+ * Information obtained from:
+ *	SPC-3, Revision 23
+ *	Section 6.11.4 PERSISTENCE RESERVE IN
+ * 	Table 108 - parameter data for REPORT CAPABILTIES
+ */
+typedef struct scsi_per_res_type {
+	uint8_t			resbits1 : 1,
+				wr_ex : 1,
+				resbits2 : 1,
+				ex_ac : 1,
+				resbits3 : 1,
+				wr_ex_ro : 1,
+				ex_ac_ro : 1,
+				wr_ex_ar : 1;
+	uint8_t			ex_ac_ar : 1,
+				resbits4 : 7;
+} scsi_per_res_type_t;
+typedef struct scsi_prin_rpt_cap {
+	uint8_t			length[2];
+	uint8_t			ptpl_c : 1,
+				resbits1 : 1,
+				atp_c : 1,
+				sip_c : 1,
+				crh : 1,
+				resbits2 : 3;
+	uint8_t			ptpl_a : 1,
+				resbits3 : 6,
+				tmv : 1;
+	scsi_per_res_type_t	pr_type;
+	uint8_t			resbytes[2];
+} scsi_prin_rpt_cap_t;
+
+/*
+ * Information obtained from:
+ *	SPC-3, Revision 23
+ *	Section 6.11.5 PERSISTENCE RESERVE IN
+ * 	Table 110/111 - parameter data for READ FULL STATUS
+ *	Table 281 - TransportId format
+ */
+typedef struct scsi_transport_id {
+	uint8_t			protocol_id : 4,
+				resbits : 2,
+				format_code : 2;
+	uint8_t			add_len[2];
+	char			iscsi_name[1];
+} scsi_transport_id_t;
+typedef struct scsi_prin_status_t {
+	uint8_t			reservation_key[8];
+	uint8_t			resbytes1[4];
+	uint8_t			r_holder : 1,
+				all_tg_pt : 1,
+				resbits : 6;
+	uint8_t			type : 4,
+				scope : 4;
+	uint8_t			resbytes2[4];
+	uint8_t			rel_tgt_port_id[2];
+	uint8_t			add_len[4];
+	scsi_transport_id_t	trans_id;
+} scsi_prin_status_t;
+typedef struct scsi_prin_full_status {
+	uint8_t			PRgeneration[4];
+	uint8_t			add_len[4];
+	scsi_prin_status_t	full_desc[1];
+} scsi_prin_full_status_t;
+
+/*
+ * Information obtained from:
+ *	SPC-3, Revision 23
+ *	Section 6.12.1 PERSISTENCE RESERVE OUT
+ *	Table 112 - PERSISTENCE RESERVE OUT command
+ */
+typedef struct scsi_cdb_prout {
+	uint8_t			cmd;
+	uint8_t			action : 5,
+				resbits : 3;
+	uint8_t			type : 4,
+				scope : 4;
+	uint8_t			resbytes[2];
+	uint8_t			param_len[4];
+	uint8_t			control;
+} scsi_cdb_prout_t;
+
+/*
+ * Information obtained from:
+ *	SPC-3, Revision 23
+ *	Section 6.12.3 PERSISTENCE RESERVE OUT
+ *	Table 114 - PERSISTENCE RESERVE OUT parameter list
+ */
+typedef struct scsi_prout_plist {
+	uint8_t			reservation_key[8];
+	uint8_t			service_key[8];
+	uint8_t			obsolete1[4];
+	uint8_t			aptpl : 1,
+				resbits1 : 1,
+				all_tg_pt : 1,
+				spec_i_pt : 1,
+				resbits2 : 4;
+	uint8_t			resbytes1;
+	uint8_t			obsolete2[2];
+	uint8_t			apd[1];
+} scsi_prout_plist_t;
+
+#elif defined(_BIT_FIELDS_HTOL)
+/*
+ * Information obtained from:
+ *	SPC-3, Revision 23
+ *	Section 6.11.1 PERSISTENCE RESERVE IN
+ *	Table 101 - PERSISTENCE RESERVE IN command
+ */
+typedef struct scsi_cdb_prin {
+	uint8_t			cmd;
+	uint8_t			resbits : 3,
+				action : 5;
+	uint8_t			resbytes[5];
+	uint8_t			alloc_len[2];
+	uint8_t			control;
+} scsi_cdb_prin_t;
+
+/*
+ * Information obtained from:
+ *	SPC-3, Revision 23
+ *	Section 6.11.2 PERSISTENCE RESERVE IN
+ *	Table 103/104/105 - parameter data for READS KEYS
+ */
+typedef struct scsi_prin_rsrvdesc {
+	uint8_t			reservation_key[8];
+	uint8_t			obsolete1[4];
+	uint8_t			resbytes;
+	uint8_t			scope : 4,
+				type : 4;
+	uint8_t			obsolete2[8];
+} scsi_prin_rsrvdesc_t;
+typedef struct scsi_prin_readrsrv {
+	uint8_t			PRgeneration[4];
+	uint8_t			add_len[4];
+	scsi_prin_rsrvdesc_t	res_key_list[1];
+} scsi_prin_readrsrv_t;
+
+/*
+ * Information obtained from:
+ *	SPC-3, Revision 23
+ *	Section 6.11.4 PERSISTENCE RESERVE IN
+ * 	Table 108 - parameter data for REPORT CAPABILTIES
+ */
+typedef struct scsi_per_res_type {
+	uint8_t			wr_ex_ar : 1,
+				ex_ac_ro : 1,
+				wr_ex_ro : 1,
+				resbits3 : 1,
+				ex_ac : 1,
+				resbits2 : 1,
+				wr_ex : 1,
+				resbits1 : 1;
+	uint8_t			resbits4 : 7,
+				ex_ac_ar : 1;
+} scsi_per_res_type_t;
+typedef struct scsi_prin_rpt_cap {
+	uint8_t			length[2];
+	uint8_t			resbits2 : 3,
+				crh : 1,
+				sip_c : 1,
+				atp_c : 1,
+				resbits1 : 1,
+				ptpl_c : 1;
+	uint8_t			tmv : 1,
+				resbits3 : 6,
+				ptpl_a : 1;
+	scsi_per_res_type_t	pr_type;
+	uint8_t			resbytes[2];
+} scsi_prin_rpt_cap_t;
+
+/*
+ * Information obtained from:
+ *	SPC-3, Revision 23
+ *	Section 6.11.5 PERSISTENCE RESERVE IN
+ * 	Table 110/111 - parameter data for READ FULL STATUS
+ *	Table 281 - TransportId format
+ */
+typedef struct scsi_transport_id {
+	uint8_t			format_code : 2,
+				resbits : 2,
+				protocol_id : 4;
+	uint8_t			add_len[2];
+	char			iscsi_name[1];
+} scsi_transport_id_t;
+typedef struct scsi_prin_status_t {
+	uint8_t			reservation_key[8];
+	uint8_t			resbytes1[4];
+	uint8_t			resbits : 6,
+				all_tg_pt : 1,
+				r_holder : 1;
+	uint8_t			scope : 4,
+				type : 4;
+	uint8_t			resbytes2[4];
+	uint8_t			rel_tgt_port_id[2];
+	uint8_t			add_len[4];
+	scsi_transport_id_t	trans_id;
+} scsi_prin_status_t;
+typedef struct scsi_prin_full_status {
+	uint8_t			PRgeneration[4];
+	uint8_t			add_len[4];
+	scsi_prin_status_t	full_desc[1];
+} scsi_prin_full_status_t;
+
+/*
+ * Information obtained from:
+ *	SPC-3, Revision 23
+ *	Section 6.12.1 PERSISTENCE RESERVE OUT
+ *	Table 112 - PERSISTENCE RESERVE OUT command
+ */
+typedef struct scsi_cdb_prout {
+	uint8_t			cmd;
+	uint8_t			resbits : 3,
+				action : 5;
+	uint8_t			scope : 4,
+				type : 4;
+	uint8_t			resbytes[2];
+	uint8_t			param_len[4];
+	uint8_t			control;
+} scsi_cdb_prout_t;
+
+/*
+ * Information obtained from:
+ *	SPC-3, Revision 23
+ *	Section 6.12.3 PERSISTENCE RESERVE OUT
+ *	Table 114 - PERSISTENCE RESERVE OUT parameter list
+ */
+typedef struct scsi_prout_plist {
+	uint8_t			reservation_key[8];
+	uint8_t			service_key[8];
+	uint8_t			obsolete1[4];
+	uint8_t			resbits1 : 4,
+				spec_i_pt : 1,
+				all_tg_pt : 1,
+				resbits2 : 1,
+				aptpl : 1;
+	uint8_t			resbytes1;
+	uint8_t			obsolete2[2];
+	uint8_t			apd[1];
+} scsi_prout_plist_t;
+
+#else
+#error	One of _BIT_FIELDS_LTOH or _BIT_FIELDS_HTOL must be defined
+#endif	/* _BIT_FIELDS_LTOH */
+
+
+/*
+ * SPC-3 revision 23, Section 6.12.2, Table 113
+ * Persistent Reservations
+ * Persistent Reserve Out service action codes
+ */
+#define	PR_OUT_REGISTER		0x0	/* Register/unregister a reservation */
+					/* key with the device server */
+#define	PR_OUT_RESERVE		0x1	/* Create a persistent reservation */
+					/* having a specified SCOPE & TYPE */
+#define	PR_OUT_RELEASE		0x2	/* Release the selected persistent */
+					/* reservation */
+#define	PR_OUT_CLEAR		0x3	/* Clears all reservation keys and */
+					/* all persistent reservations */
+#define	PR_OUT_PREEMPT		0x4	/* Preempts persistent reservations */
+					/* and/or removes reservations */
+#define	PR_OUT_PREEMPT_ABORT	0x5	/* Preempts persistent reservations */
+					/* and/or removes reservations, and */
+					/* aborts all tasks for all preempted */
+					/* I_T nexuses */
+#define	PR_OUT_REGISTER_AND_IGNORE_EXISTING_KEY	0x06
+					/* Register a reservation key with */
+					/* the device server, or unregister a */
+					/* reservation key */
+#define	PR_OUT_REGISTER_MOVE	0x7	/* Register a reservation key for */
+					/* another I_T nexus with the device */
+					/* server and move a persistent */
+					/* reservation to the I_T nexus */
+
+
+#ifdef	__cplusplus
+}
+#endif
+
+#endif	/* _SYS_SCSI_GENERIC_PERSIST_H */