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/*
* 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 (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2013 by Delphix. All rights reserved.
* Copyright 2015 Nexenta Systems, Inc. All rights reserved.
*/
#ifndef _LPIF_H
#define _LPIF_H
/*
* Definitions for stmf LUs and lu providers.
*/
#include <sys/stmf_defines.h>
#include <sys/stmf.h>
#ifdef __cplusplus
extern "C" {
#endif
#define LPIF_REV_1 0x00010000
#define LPIF_REV_2 0x00020000
typedef struct stmf_lu {
void *lu_stmf_private;
void *lu_provider_private;
struct scsi_devid_desc *lu_id;
char *lu_alias; /* optional */
struct stmf_lu_provider *lu_lp;
uint32_t lu_abort_timeout; /* In seconds */
/* SAM Device Server Class */
stmf_status_t (*lu_task_alloc)(struct scsi_task *task);
void (*lu_new_task)(struct scsi_task *task,
struct stmf_data_buf *initial_dbuf);
void (*lu_dbuf_xfer_done)(struct scsi_task *task,
struct stmf_data_buf *dbuf);
/*
* If completion confirmation is not requested, status xfer done
* is called after the transport has confirmed that status has been
* sent. If completion confirmation is requested then the HBA will
* request a completion confirmation from the host and upon receiving
* the same, this entry point will be called.
*/
void (*lu_send_status_done)(struct scsi_task *task);
void (*lu_task_free)(struct scsi_task *task);
stmf_status_t (*lu_abort)(struct stmf_lu *lu,
int abort_cmd, void *arg, uint32_t flags);
void (*lu_task_poll)(struct scsi_task *task);
void (*lu_ctl)(struct stmf_lu *lu, int cmd,
void *arg);
stmf_status_t (*lu_info)(uint32_t cmd, struct stmf_lu *lu,
void *arg, uint8_t *buf, uint32_t *bufsizep);
void (*lu_event_handler)(struct stmf_lu *lu,
int eventid, void *arg, uint32_t flags);
void *lu_proxy_reg_arg;
uint32_t lu_proxy_reg_arg_len;
void (*lu_dbuf_free)(struct scsi_task *task,
struct stmf_data_buf *dbuf);
void (*lu_task_done)(struct scsi_task *task);
} stmf_lu_t;
/*
* Abort cmd
*/
#define STMF_LU_ABORT_TASK 1
#define STMF_LU_RESET_STATE 2
#define STMF_LU_ITL_HANDLE_REMOVED 3
#define STMF_LU_SET_ABORT 4
/*
* Asymmetric access state
*/
#define STMF_LU_ACTIVE 0
#define STMF_LU_STANDBY 1
/*
* proxy register msg types
*/
#define STMF_MSG_LU_REGISTER 0
#define STMF_MSG_LU_ACTIVE 1
#define STMF_MSG_LU_DEREGISTER 2
#define STMF_PROXY_READ 1
#define STMF_PROXY_WRITE 2
/*
* Reasons for itl handle removal. Passed in flags.
*/
#define STMF_ITL_REASON_MASK 0x0f
#define STMF_ITL_REASON_UNKNOWN 0x0
#define STMF_ITL_REASON_DEREG_REQUEST 0x1
#define STMF_ITL_REASON_USER_REQUEST 0x2
#define STMF_ITL_REASON_IT_NEXUS_LOSS 0x3
typedef struct stmf_lu_provider {
void *lp_stmf_private;
void *lp_private;
uint32_t lp_lpif_rev; /* Currently LPIF_REV_2 */
int lp_instance;
char *lp_name;
void (*lp_cb)(struct stmf_lu_provider *lp,
int cmd, void *arg, uint32_t flags);
uint8_t lp_alua_support;
stmf_status_t (*lp_proxy_msg)(uint8_t *luid,
void *proxy_reg_arg, uint32_t proxy_reg_arg_len, uint32_t type);
} stmf_lu_provider_t;
stmf_status_t stmf_deregister_lu_provider(stmf_lu_provider_t *lp);
stmf_status_t stmf_register_lu_provider(stmf_lu_provider_t *lp);
stmf_status_t stmf_register_lu(stmf_lu_t *lup);
stmf_status_t stmf_deregister_lu(stmf_lu_t *lup);
stmf_status_t stmf_set_lu_access(stmf_lu_t *lup, uint8_t access_state);
stmf_status_t stmf_proxy_scsi_cmd(scsi_task_t *, stmf_data_buf_t *dbuf);
int stmf_is_standby_port(scsi_task_t *);
void stmf_lu_xfer_done(struct scsi_task *task, boolean_t read,
hrtime_t elapsed_time);
boolean_t stmf_is_pgr_aptpl_always();
#ifdef __cplusplus
}
#endif
#endif /* _LPIF_H */
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