862 lines
27 KiB
C
862 lines
27 KiB
C
/*
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* Data structures and definitions for CAM Control Blocks (CCBs).
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*
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* Copyright (c) 1997, 1998 Justin T. Gibbs.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification, immediately at the beginning of the file.
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* 2. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _CAM_CAM_CCB_H
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#define _CAM_CAM_CCB_H 1
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#include <sys/queue.h>
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#include <sys/cdefs.h>
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#include <sys/time.h>
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#ifndef _KERNEL
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#include <sys/callout.h>
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#endif
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#include <cam/cam_debug.h>
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#include <cam/scsi/scsi_all.h>
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/* General allocation length definitions for CCB structures */
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#define IOCDBLEN CAM_MAX_CDBLEN /* Space for CDB bytes/pointer */
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#define VUHBALEN 14 /* Vendor Unique HBA length */
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#define SIM_IDLEN 16 /* ASCII string len for SIM ID */
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#define HBA_IDLEN 16 /* ASCII string len for HBA ID */
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#define DEV_IDLEN 16 /* ASCII string len for device names */
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#define CCB_PERIPH_PRIV_SIZE 2 /* size of peripheral private area */
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#define CCB_SIM_PRIV_SIZE 2 /* size of sim private area */
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/* Struct definitions for CAM control blocks */
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/* Common CCB header */
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/* CAM CCB flags */
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typedef enum {
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CAM_CDB_POINTER = 0x00000001,/* The CDB field is a pointer */
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CAM_QUEUE_ENABLE = 0x00000002,/* SIM queue actions are enabled */
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CAM_CDB_LINKED = 0x00000004,/* CCB contains a linked CDB */
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CAM_SCATTER_VALID = 0x00000010,/* Scatter/gather list is valid */
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CAM_DIS_AUTOSENSE = 0x00000020,/* Disable autosense feature */
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CAM_DIR_RESV = 0x00000000,/* Data direction (00:reserved) */
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CAM_DIR_IN = 0x00000040,/* Data direction (01:DATA IN) */
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CAM_DIR_OUT = 0x00000080,/* Data direction (10:DATA OUT) */
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CAM_DIR_NONE = 0x000000C0,/* Data direction (11:no data) */
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CAM_DIR_MASK = 0x000000C0,/* Data direction Mask */
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CAM_SOFT_RST_OP = 0x00000100,/* Use Soft reset alternative */
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CAM_ENG_SYNC = 0x00000200,/* Flush resid bytes on complete */
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CAM_DEV_QFRZDIS = 0x00000400,/* Disable DEV Q freezing */
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CAM_DEV_QFREEZE = 0x00000800,/* Freeze DEV Q on execution */
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CAM_HIGH_POWER = 0x00001000,/* Command takes a lot of power */
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CAM_SENSE_PTR = 0x00002000,/* Sense data is a pointer */
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CAM_SENSE_PHYS = 0x00004000,/* Sense pointer is physical addr*/
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CAM_TAG_ACTION_VALID = 0x00008000,/* Use the tag action in this ccb*/
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CAM_PASS_ERR_RECOVER = 0x00010000,/* Pass driver does err. recovery*/
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CAM_DIS_DISCONNECT = 0x00020000,/* Disable disconnect */
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CAM_SG_LIST_PHYS = 0x00040000,/* SG list has physical addrs. */
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CAM_MSG_BUF_PHYS = 0x00080000,/* Message buffer ptr is physical*/
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CAM_SNS_BUF_PHYS = 0x00100000,/* Autosense data ptr is physical*/
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CAM_DATA_PHYS = 0x00200000,/* SG/Buffer data ptrs are phys. */
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CAM_CDB_PHYS = 0x00400000,/* CDB poiner is physical */
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CAM_ENG_SGLIST = 0x00800000,/* SG list is for the HBA engine */
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/* Phase cognizant mode flags */
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CAM_DIS_AUTOSRP = 0x01000000,/* Disable autosave/restore ptrs */
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CAM_DIS_AUTODISC = 0x02000000,/* Disable auto disconnect */
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CAM_TGT_CCB_AVAIL = 0x04000000,/* Target CCB available */
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CAM_TGT_PHASE_MODE = 0x08000000,/* The SIM runs in phase mode */
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CAM_MSGB_VALID = 0x10000000,/* Message buffer valid */
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CAM_STATUS_VALID = 0x20000000,/* Status buffer valid */
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CAM_DATAB_VALID = 0x40000000,/* Data buffer valid */
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/* Host target Mode flags */
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CAM_SEND_SENSE = 0x08000000,/* Send sense data with status */
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CAM_TERM_IO = 0x10000000,/* Terminate I/O Message sup. */
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CAM_DISCONNECT = 0x20000000,/* Disconnects are mandatory */
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CAM_SEND_STATUS = 0x40000000 /* Send status after data phase */
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} ccb_flags;
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/* XPT Opcodes for xpt_action */
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typedef enum {
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/* Function code flags are bits greater than 0xff */
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XPT_FC_QUEUED = 0x100,
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/* Non-immediate function code */
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XPT_FC_USER_CCB = 0x200,
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XPT_FC_XPT_ONLY = 0x400,
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/* Only for the transport layer device */
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XPT_FC_DEV_QUEUED = 0x800 | XPT_FC_QUEUED,
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/* Passes through the device queues */
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/* Common function commands: 0x00->0x0F */
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XPT_NOOP = 0x00,
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/* Execute Nothing */
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XPT_SCSI_IO = 0x01 | XPT_FC_DEV_QUEUED,
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/* Execute the requested I/O operation */
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XPT_GDEV_TYPE = 0x02,
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/* Get type information for specified device */
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XPT_GDEVLIST = 0x03,
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/* Get a list of peripheral devices */
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XPT_PATH_INQ = 0x04,
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/* Path routing inquiry */
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XPT_REL_SIMQ = 0x05,
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/* Release a frozen SIM queue */
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XPT_SASYNC_CB = 0x06,
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/* Set Asynchronous Callback Parameters */
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XPT_SDEV_TYPE = 0x07,
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/* Set device type information */
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XPT_SCAN_BUS = 0x08 | XPT_FC_QUEUED | XPT_FC_USER_CCB
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| XPT_FC_XPT_ONLY,
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/* (Re)Scan the SCSI Bus */
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XPT_DEV_MATCH = 0x09 | XPT_FC_XPT_ONLY,
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/* Get EDT entries matching the given pattern */
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XPT_DEBUG = 0x0a,
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/* Turn on debugging for a bus, target or lun */
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XPT_PATH_STATS = 0x0b,
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/* Path statistics (error counts, etc.) */
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XPT_GDEV_STATS = 0x0c,
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/* Device statistics (error counts, etc.) */
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/* SCSI Control Functions: 0x10->0x1F */
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XPT_ABORT = 0x10,
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/* Abort the specified CCB */
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XPT_RESET_BUS = 0x11 | XPT_FC_XPT_ONLY,
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/* Reset the specified SCSI bus */
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XPT_RESET_DEV = 0x12 | XPT_FC_DEV_QUEUED,
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/* Bus Device Reset the specified SCSI device */
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XPT_TERM_IO = 0x13,
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/* Terminate the I/O process */
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XPT_SCAN_LUN = 0x14 | XPT_FC_QUEUED | XPT_FC_USER_CCB
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| XPT_FC_XPT_ONLY,
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/* Scan Logical Unit */
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XPT_GET_TRAN_SETTINGS = 0x15,
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/*
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* Get default/user transfer settings
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* for the target
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*/
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XPT_SET_TRAN_SETTINGS = 0x16,
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/*
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* Set transfer rate/width
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* negotiation settings
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*/
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XPT_CALC_GEOMETRY = 0x17,
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/*
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* Calculate the geometry parameters for
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* a device give the sector size and
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* volume size.
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*/
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/* HBA engine commands 0x20->0x2F */
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XPT_ENG_INQ = 0x20 | XPT_FC_XPT_ONLY,
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/* HBA engine feature inquiry */
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XPT_ENG_EXEC = 0x21 | XPT_FC_DEV_QUEUED | XPT_FC_XPT_ONLY,
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/* HBA execute engine request */
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/* Target mode commands: 0x30->0x3F */
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XPT_EN_LUN = 0x30,
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/* Enable LUN as a target */
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XPT_TARGET_IO = 0x31 | XPT_FC_DEV_QUEUED,
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/* Execute target I/O request */
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XPT_ACCEPT_TARGET_IO = 0x32 | XPT_FC_QUEUED | XPT_FC_USER_CCB,
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/* Accept Host Target Mode CDB */
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XPT_CONT_TARGET_IO = 0x33 | XPT_FC_DEV_QUEUED,
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/* Continue Host Target I/O Connection */
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XPT_IMMED_NOTIFY = 0x34 | XPT_FC_QUEUED | XPT_FC_USER_CCB,
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/* Notify Host Target driver of event */
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XPT_NOTIFY_ACK = 0x35,
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/* Acknowledgement of event */
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/* Vendor Unique codes: 0x80->0x8F */
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XPT_VUNIQUE = 0x80
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} xpt_opcode;
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#define XPT_FC_GROUP_MASK 0xF0
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#define XPT_FC_GROUP(op) ((op) & XPT_FC_GROUP_MASK)
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#define XPT_FC_GROUP_COMMON 0x00
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#define XPT_FC_GROUP_SCSI_CONTROL 0x10
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#define XPT_FC_GROUP_HBA_ENGINE 0x20
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#define XPT_FC_GROUP_TMODE 0x30
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#define XPT_FC_GROUP_VENDOR_UNIQUE 0x80
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#define XPT_FC_IS_DEV_QUEUED(ccb) \
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(((ccb)->ccb_h.func_code & XPT_FC_DEV_QUEUED) == XPT_FC_DEV_QUEUED)
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#define XPT_FC_IS_QUEUED(ccb) \
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(((ccb)->ccb_h.func_code & XPT_FC_QUEUED) != 0)
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typedef union {
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LIST_ENTRY(ccb_hdr) le;
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SLIST_ENTRY(ccb_hdr) sle;
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TAILQ_ENTRY(ccb_hdr) tqe;
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STAILQ_ENTRY(ccb_hdr) stqe;
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} camq_entry;
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typedef union {
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void *ptr;
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u_long field;
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u_int8_t bytes[sizeof(void *) > sizeof(u_long)
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? sizeof(void *) : sizeof(u_long)];
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} ccb_priv_entry;
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typedef union {
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ccb_priv_entry entries[CCB_PERIPH_PRIV_SIZE];
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u_int8_t bytes[CCB_PERIPH_PRIV_SIZE * sizeof(ccb_priv_entry)];
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} ccb_ppriv_area;
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typedef union {
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ccb_priv_entry entries[CCB_SIM_PRIV_SIZE];
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u_int8_t bytes[CCB_SIM_PRIV_SIZE * sizeof(ccb_priv_entry)];
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} ccb_spriv_area;
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struct ccb_hdr {
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cam_pinfo pinfo; /* Info for priority scheduling */
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camq_entry xpt_links; /* For chaining in the XPT layer */
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camq_entry sim_links; /* For chaining in the SIM layer */
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camq_entry periph_links;/* For chaining in the type driver */
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u_int32_t retry_count;
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/* Callback on completion function */
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void (*cbfcnp)(struct cam_periph *, union ccb *);
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xpt_opcode func_code; /* XPT function code */
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u_int32_t status; /* Status returned by CAM subsystem */
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/* Compiled path for this ccb */
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struct cam_path *path;
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path_id_t path_id; /* Path ID for the request */
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target_id_t target_id; /* Target device ID */
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lun_id_t target_lun; /* Target LUN number */
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u_int32_t flags;
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ccb_ppriv_area periph_priv;
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ccb_spriv_area sim_priv;
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u_int32_t timeout; /* Timeout value */
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/* Callout handle used for timeouts */
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struct callout_handle timeout_ch;
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};
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/* Get Device Information CCB */
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struct ccb_getdev {
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struct ccb_hdr ccb_h;
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struct scsi_inquiry_data inq_data;
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u_int8_t serial_num[252];
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u_int8_t inq_len;
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u_int8_t serial_num_len;
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};
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/* Device Statistics CCB */
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struct ccb_getdevstats {
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struct ccb_hdr ccb_h;
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int dev_openings; /* Space left for more work on device*/
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int dev_active; /* Transactions running on the device */
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int devq_openings; /* Space left for more queued work */
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int devq_queued; /* Transactions queued to be sent */
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int held; /*
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* CCBs held by peripheral drivers
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* for this device
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*/
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int maxtags; /*
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* Boundary conditions for number of
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* tagged operations
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*/
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int mintags;
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struct timeval last_reset; /* Time of last bus reset/loop init */
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};
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typedef enum {
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CAM_GDEVLIST_LAST_DEVICE,
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CAM_GDEVLIST_LIST_CHANGED,
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CAM_GDEVLIST_MORE_DEVS,
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CAM_GDEVLIST_ERROR
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} ccb_getdevlist_status_e;
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struct ccb_getdevlist {
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struct ccb_hdr ccb_h;
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char periph_name[DEV_IDLEN];
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u_int32_t unit_number;
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unsigned int generation;
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u_int32_t index;
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ccb_getdevlist_status_e status;
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};
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typedef enum {
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PERIPH_MATCH_NONE = 0x000,
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PERIPH_MATCH_PATH = 0x001,
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PERIPH_MATCH_TARGET = 0x002,
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PERIPH_MATCH_LUN = 0x004,
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PERIPH_MATCH_NAME = 0x008,
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PERIPH_MATCH_UNIT = 0x010,
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PERIPH_MATCH_ANY = 0x01f
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} periph_pattern_flags;
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struct periph_match_pattern {
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char periph_name[DEV_IDLEN];
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u_int32_t unit_number;
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path_id_t path_id;
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target_id_t target_id;
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lun_id_t target_lun;
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periph_pattern_flags flags;
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};
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typedef enum {
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DEV_MATCH_NONE = 0x000,
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DEV_MATCH_PATH = 0x001,
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DEV_MATCH_TARGET = 0x002,
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DEV_MATCH_LUN = 0x004,
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DEV_MATCH_INQUIRY = 0x008,
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DEV_MATCH_ANY = 0x00f
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} dev_pattern_flags;
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struct device_match_pattern {
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path_id_t path_id;
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target_id_t target_id;
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lun_id_t target_lun;
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struct scsi_static_inquiry_pattern inq_pat;
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dev_pattern_flags flags;
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};
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typedef enum {
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BUS_MATCH_NONE = 0x000,
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BUS_MATCH_PATH = 0x001,
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BUS_MATCH_NAME = 0x002,
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BUS_MATCH_UNIT = 0x004,
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BUS_MATCH_BUS_ID = 0x008,
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BUS_MATCH_ANY = 0x00f
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} bus_pattern_flags;
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struct bus_match_pattern {
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path_id_t path_id;
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char dev_name[DEV_IDLEN];
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u_int32_t unit_number;
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u_int32_t bus_id;
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bus_pattern_flags flags;
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};
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union match_pattern {
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struct periph_match_pattern periph_pattern;
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struct device_match_pattern device_pattern;
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struct bus_match_pattern bus_pattern;
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};
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typedef enum {
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DEV_MATCH_PERIPH,
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DEV_MATCH_DEVICE,
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DEV_MATCH_BUS
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} dev_match_type;
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struct dev_match_pattern {
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dev_match_type type;
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union match_pattern pattern;
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};
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struct periph_match_result {
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char periph_name[DEV_IDLEN];
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u_int32_t unit_number;
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path_id_t path_id;
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target_id_t target_id;
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lun_id_t target_lun;
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};
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typedef enum {
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DEV_RESULT_NOFLAG = 0x00,
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DEV_RESULT_UNCONFIGURED = 0x01
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} dev_result_flags;
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struct device_match_result {
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path_id_t path_id;
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target_id_t target_id;
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lun_id_t target_lun;
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struct scsi_inquiry_data inq_data;
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dev_result_flags flags;
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};
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struct bus_match_result {
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path_id_t path_id;
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char dev_name[DEV_IDLEN];
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u_int32_t unit_number;
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u_int32_t bus_id;
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};
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union match_result {
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struct periph_match_result periph_result;
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struct device_match_result device_result;
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struct bus_match_result bus_result;
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};
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struct dev_match_result {
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dev_match_type type;
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union match_result result;
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};
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typedef enum {
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CAM_DEV_MATCH_LAST,
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CAM_DEV_MATCH_MORE,
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CAM_DEV_MATCH_LIST_CHANGED,
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CAM_DEV_MATCH_SIZE_ERROR,
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CAM_DEV_MATCH_ERROR
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} ccb_dev_match_status;
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typedef enum {
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CAM_DEV_POS_NONE = 0x000,
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CAM_DEV_POS_BUS = 0x001,
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CAM_DEV_POS_TARGET = 0x002,
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CAM_DEV_POS_DEVICE = 0x004,
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CAM_DEV_POS_PERIPH = 0x008,
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CAM_DEV_POS_PDPTR = 0x010,
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CAM_DEV_POS_TYPEMASK = 0xf00,
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CAM_DEV_POS_EDT = 0x100,
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CAM_DEV_POS_PDRV = 0x200
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} dev_pos_type;
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struct ccb_dm_cookie {
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void *bus;
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void *target;
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void *device;
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void *periph;
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void *pdrv;
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};
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struct ccb_dev_position {
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u_int generations[4];
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#define CAM_BUS_GENERATION 0x00
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#define CAM_TARGET_GENERATION 0x01
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#define CAM_DEV_GENERATION 0x02
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#define CAM_PERIPH_GENERATION 0x03
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dev_pos_type position_type;
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struct ccb_dm_cookie cookie;
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};
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struct ccb_dev_match {
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struct ccb_hdr ccb_h;
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ccb_dev_match_status status;
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u_int32_t num_patterns;
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u_int32_t pattern_buf_len;
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struct dev_match_pattern *patterns;
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u_int32_t num_matches;
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u_int32_t match_buf_len;
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struct dev_match_result *matches;
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struct ccb_dev_position pos;
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};
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/*
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* Definitions for the path inquiry CCB fields.
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*/
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#define CAM_VERSION 0x14 /* Hex value for current version */
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typedef enum {
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PI_MDP_ABLE = 0x80, /* Supports MDP message */
|
|
PI_WIDE_32 = 0x40, /* Supports 32 bit wide SCSI */
|
|
PI_WIDE_16 = 0x20, /* Supports 16 bit wide SCSI */
|
|
PI_SDTR_ABLE = 0x10, /* Supports SDTR message */
|
|
PI_LINKED_CDB = 0x08, /* Supports linked CDBs */
|
|
PI_TAG_ABLE = 0x02, /* Supports tag queue messages */
|
|
PI_SOFT_RST = 0x01 /* Supports soft reset alternative */
|
|
} pi_inqflag;
|
|
|
|
typedef enum {
|
|
PIT_PROCESSOR = 0x80, /* Target mode processor mode */
|
|
PIT_PHASE = 0x40, /* Target mode phase cog. mode */
|
|
PIT_DISCONNECT = 0x20, /* Disconnects supported in target mode */
|
|
PIT_TERM_IO = 0x10, /* Terminate I/O message supported in TM */
|
|
PIT_GRP_6 = 0x08, /* Group 6 commands supported */
|
|
PIT_GRP_7 = 0x04 /* Group 7 commands supported */
|
|
} pi_tmflag;
|
|
|
|
typedef enum {
|
|
PIM_SCANHILO = 0x80, /* Bus scans from high ID to low ID */
|
|
PIM_NOREMOVE = 0x40, /* Removeable devices not included in scan */
|
|
PIM_NOINITIATOR = 0x20, /* Initiator role not supported. */
|
|
PIM_NOBUSRESET = 0x10 /* User has disabled initial BUS RESET */
|
|
} pi_miscflag;
|
|
|
|
/* Path Inquiry CCB */
|
|
struct ccb_pathinq {
|
|
struct ccb_hdr ccb_h;
|
|
u_int8_t version_num; /* Version number for the SIM/HBA */
|
|
u_int8_t hba_inquiry; /* Mimic of INQ byte 7 for the HBA */
|
|
u_int8_t target_sprt; /* Flags for target mode support */
|
|
u_int8_t hba_misc; /* Misc HBA features */
|
|
u_int16_t hba_eng_cnt; /* HBA engine count */
|
|
/* Vendor Unique capabilities */
|
|
u_int8_t vuhba_flags[VUHBALEN];
|
|
u_int32_t max_target; /* Maximum supported Target */
|
|
u_int32_t max_lun; /* Maximum supported Lun */
|
|
u_int32_t async_flags; /* Installed Async handlers */
|
|
path_id_t hpath_id; /* Highest Path ID in the subsystem */
|
|
target_id_t initiator_id; /* ID of the HBA on the SCSI bus */
|
|
char sim_vid[SIM_IDLEN]; /* Vendor ID of the SIM */
|
|
char hba_vid[HBA_IDLEN]; /* Vendor ID of the HBA */
|
|
char dev_name[DEV_IDLEN];/* Device name for SIM */
|
|
u_int32_t unit_number; /* Unit number for SIM */
|
|
u_int32_t bus_id; /* Bus ID for SIM */
|
|
u_int32_t base_transfer_speed;/* Base bus speed in KB/sec */
|
|
};
|
|
|
|
/* Path Statistics CCB */
|
|
struct ccb_pathstats {
|
|
struct ccb_hdr ccb_h;
|
|
struct timeval last_reset; /* Time of last bus reset/loop init */
|
|
};
|
|
|
|
typedef union {
|
|
u_int8_t *sense_ptr; /*
|
|
* Pointer to storage
|
|
* for sense information
|
|
*/
|
|
/* Storage Area for sense information */
|
|
struct scsi_sense_data sense_buf;
|
|
} sense_t;
|
|
|
|
typedef union {
|
|
u_int8_t *cdb_ptr; /* Pointer to the CDB bytes to send */
|
|
/* Area for the CDB send */
|
|
u_int8_t cdb_bytes[IOCDBLEN];
|
|
} cdb_t;
|
|
|
|
/*
|
|
* SCSI I/O Request CCB used for the XPT_SCSI_IO and XPT_CONT_TARGET_IO
|
|
* function codes.
|
|
*/
|
|
struct ccb_scsiio {
|
|
struct ccb_hdr ccb_h;
|
|
union ccb *next_ccb; /* Ptr for next CCB for action */
|
|
u_int8_t *req_map; /* Ptr to mapping info */
|
|
u_int8_t *data_ptr; /* Ptr to the data buf/SG list */
|
|
u_int32_t dxfer_len; /* Data transfer length */
|
|
/* Autosense storage */
|
|
struct scsi_sense_data sense_data;
|
|
u_int8_t sense_len; /* Number of bytes to autosense */
|
|
u_int8_t cdb_len; /* Number of bytes for the CDB */
|
|
u_int16_t sglist_cnt; /* Number of SG list entries */
|
|
u_int8_t scsi_status; /* Returned SCSI status */
|
|
u_int8_t sense_resid; /* Autosense resid length: 2's comp */
|
|
u_int32_t resid; /* Transfer residual length: 2's comp */
|
|
cdb_t cdb_io; /* Union for CDB bytes/pointer */
|
|
u_int8_t *msg_ptr; /* Pointer to the message buffer */
|
|
u_int16_t msg_len; /* Number of bytes for the Message */
|
|
u_int8_t tag_action; /* What to do for tag queueing */
|
|
/*
|
|
* The tag action should be either the define below (to send a
|
|
* non-tagged transaction) or one of the defined scsi tag messages
|
|
* from scsi_message.h.
|
|
*/
|
|
#define CAM_TAG_ACTION_NONE 0x00
|
|
u_int tag_id; /* tag id from initator (target mode) */
|
|
u_int init_id; /* initiator id of who selected */
|
|
};
|
|
|
|
struct ccb_accept_tio {
|
|
struct ccb_hdr ccb_h;
|
|
cdb_t cdb_io; /* Union for CDB bytes/pointer */
|
|
u_int8_t cdb_len; /* Number of bytes for the CDB */
|
|
u_int8_t tag_action; /* What to do for tag queueing */
|
|
u_int8_t sense_len; /* Number of bytes of Sense Data */
|
|
u_int tag_id; /* tag id from initator (target mode) */
|
|
u_int init_id; /* initiator id of who selected */
|
|
struct scsi_sense_data sense_data;
|
|
};
|
|
|
|
/* Release SIM Queue */
|
|
struct ccb_relsim {
|
|
struct ccb_hdr ccb_h;
|
|
u_int32_t release_flags;
|
|
#define RELSIM_ADJUST_OPENINGS 0x01
|
|
#define RELSIM_RELEASE_AFTER_TIMEOUT 0x02
|
|
#define RELSIM_RELEASE_AFTER_CMDCMPLT 0x04
|
|
#define RELSIM_RELEASE_AFTER_QEMPTY 0x08
|
|
u_int32_t openings;
|
|
u_int32_t release_timeout;
|
|
u_int32_t qfrozen_cnt;
|
|
};
|
|
|
|
/*
|
|
* Definitions for the asynchronous callback CCB fields.
|
|
*/
|
|
typedef enum {
|
|
AC_GETDEV_CHANGED = 0x800,/* Getdev info might have changed */
|
|
AC_INQ_CHANGED = 0x400,/* Inquiry info might have changed */
|
|
AC_TRANSFER_NEG = 0x200,/* New transfer settings in effect */
|
|
AC_LOST_DEVICE = 0x100,/* A device went away */
|
|
AC_FOUND_DEVICE = 0x080,/* A new device was found */
|
|
AC_PATH_DEREGISTERED = 0x040,/* A path has de-registered */
|
|
AC_PATH_REGISTERED = 0x020,/* A new path has been registered */
|
|
AC_SENT_BDR = 0x010,/* A BDR message was sent to target */
|
|
AC_SCSI_AEN = 0x008,/* A SCSI AEN has been received */
|
|
AC_UNSOL_RESEL = 0x002,/* Unsolicited reselection occurred */
|
|
AC_BUS_RESET = 0x001 /* A SCSI bus reset occurred */
|
|
} ac_code;
|
|
|
|
typedef void ac_callback_t (void *softc, u_int32_t code,
|
|
struct cam_path *path, void *args);
|
|
|
|
/* Set Asynchronous Callback CCB */
|
|
struct ccb_setasync {
|
|
struct ccb_hdr ccb_h;
|
|
u_int32_t event_enable; /* Async Event enables */
|
|
ac_callback_t *callback;
|
|
void *callback_arg;
|
|
};
|
|
|
|
/* Set Device Type CCB */
|
|
struct ccb_setdev {
|
|
struct ccb_hdr ccb_h;
|
|
u_int8_t dev_type; /* Value for dev type field in EDT */
|
|
};
|
|
|
|
/* SCSI Control Functions */
|
|
|
|
/* Abort XPT request CCB */
|
|
struct ccb_abort {
|
|
struct ccb_hdr ccb_h;
|
|
union ccb *abort_ccb; /* Pointer to CCB to abort */
|
|
};
|
|
|
|
/* Reset SCSI Bus CCB */
|
|
struct ccb_resetbus {
|
|
struct ccb_hdr ccb_h;
|
|
};
|
|
|
|
/* Reset SCSI Device CCB */
|
|
struct ccb_resetdev {
|
|
struct ccb_hdr ccb_h;
|
|
};
|
|
|
|
/* Terminate I/O Process Request CCB */
|
|
struct ccb_termio {
|
|
struct ccb_hdr ccb_h;
|
|
union ccb *termio_ccb; /* Pointer to CCB to terminate */
|
|
};
|
|
|
|
/* Get/Set transfer rate/width/disconnection/tag queueing settings */
|
|
struct ccb_trans_settings {
|
|
struct ccb_hdr ccb_h;
|
|
u_int valid; /* Which fields to honor */
|
|
#define CCB_TRANS_SYNC_RATE_VALID 0x01
|
|
#define CCB_TRANS_SYNC_OFFSET_VALID 0x02
|
|
#define CCB_TRANS_BUS_WIDTH_VALID 0x04
|
|
#define CCB_TRANS_DISC_VALID 0x08
|
|
#define CCB_TRANS_TQ_VALID 0x10
|
|
u_int flags;
|
|
#define CCB_TRANS_CURRENT_SETTINGS 0x01
|
|
#define CCB_TRANS_USER_SETTINGS 0x02
|
|
#define CCB_TRANS_DISC_ENB 0x04
|
|
#define CCB_TRANS_TAG_ENB 0x08
|
|
u_int sync_period;
|
|
u_int sync_offset;
|
|
u_int bus_width;
|
|
};
|
|
|
|
/*
|
|
* Calculate the geometry parameters for a device
|
|
* give the block size and volume size in blocks.
|
|
*/
|
|
struct ccb_calc_geometry {
|
|
struct ccb_hdr ccb_h;
|
|
u_int32_t block_size;
|
|
u_int32_t volume_size;
|
|
u_int16_t cylinders;
|
|
u_int8_t heads;
|
|
u_int8_t secs_per_track;
|
|
};
|
|
|
|
/*
|
|
* Rescan the given bus, or bus/target/lun
|
|
*/
|
|
struct ccb_rescan {
|
|
struct ccb_hdr ccb_h;
|
|
cam_flags flags;
|
|
};
|
|
|
|
/*
|
|
* Turn on debugging for the given bus, bus/target, or bus/target/lun.
|
|
*/
|
|
struct ccb_debug {
|
|
struct ccb_hdr ccb_h;
|
|
cam_debug_flags flags;
|
|
};
|
|
|
|
/* Target mode structures. */
|
|
|
|
struct ccb_en_lun {
|
|
struct ccb_hdr ccb_h;
|
|
u_int16_t grp6_len; /* Group 6 VU CDB length */
|
|
u_int16_t grp7_len; /* Group 7 VU CDB length */
|
|
u_int8_t enable;
|
|
};
|
|
|
|
struct ccb_immed_notify {
|
|
struct ccb_hdr ccb_h;
|
|
struct scsi_sense_data sense_data;
|
|
u_int8_t sense_len; /* Number of bytes in sense buffer */
|
|
u_int8_t initiator_id; /* Id of initiator that selected */
|
|
u_int8_t message_args[7]; /* Message Arguments */
|
|
};
|
|
|
|
struct ccb_notify_ack {
|
|
struct ccb_hdr ccb_h;
|
|
u_int16_t seq_id; /* Sequence identifier */
|
|
u_int8_t event; /* Event flags */
|
|
};
|
|
|
|
/* HBA engine structures. */
|
|
|
|
typedef enum {
|
|
EIT_BUFFER, /* Engine type: buffer memory */
|
|
EIT_LOSSLESS, /* Engine type: lossless compression */
|
|
EIT_LOSSY, /* Engine type: lossy compression */
|
|
EIT_ENCRYPT /* Engine type: encryption */
|
|
} ei_type;
|
|
|
|
typedef enum {
|
|
EAD_VUNIQUE, /* Engine algorithm ID: vendor unique */
|
|
EAD_LZ1V1, /* Engine algorithm ID: LZ1 var.1 */
|
|
EAD_LZ2V1, /* Engine algorithm ID: LZ2 var.1 */
|
|
EAD_LZ2V2 /* Engine algorithm ID: LZ2 var.2 */
|
|
} ei_algo;
|
|
|
|
struct ccb_eng_inq {
|
|
struct ccb_hdr ccb_h;
|
|
u_int16_t eng_num; /* The engine number for this inquiry */
|
|
ei_type eng_type; /* Returned engine type */
|
|
ei_algo eng_algo; /* Returned engine algorithm type */
|
|
u_int32_t eng_memeory; /* Returned engine memory size */
|
|
};
|
|
|
|
struct ccb_eng_exec { /* This structure must match SCSIIO size */
|
|
struct ccb_hdr ccb_h;
|
|
u_int8_t *pdrv_ptr; /* Ptr used by the peripheral driver */
|
|
u_int8_t *req_map; /* Ptr for mapping info on the req. */
|
|
u_int8_t *data_ptr; /* Pointer to the data buf/SG list */
|
|
u_int32_t dxfer_len; /* Data transfer length */
|
|
u_int8_t *engdata_ptr; /* Pointer to the engine buffer data */
|
|
u_int16_t sglist_cnt; /* Num of scatter gather list entries */
|
|
u_int32_t dmax_len; /* Destination data maximum length */
|
|
u_int32_t dest_len; /* Destination data length */
|
|
int32_t src_resid; /* Source residual length: 2's comp */
|
|
u_int32_t timeout; /* Timeout value */
|
|
u_int16_t eng_num; /* Engine number for this request */
|
|
u_int16_t vu_flags; /* Vendor Unique flags */
|
|
};
|
|
|
|
/*
|
|
* Definitions for the timeout field in the SCSI I/O CCB.
|
|
*/
|
|
#define CAM_TIME_DEFAULT 0x00000000 /* Use SIM default value */
|
|
#define CAM_TIME_INFINITY 0xFFFFFFFF /* Infinite timeout */
|
|
|
|
#define CAM_SUCCESS 0 /* For signaling general success */
|
|
#define CAM_FAILURE 1 /* For signaling general failure */
|
|
|
|
#define CAM_FALSE 0
|
|
#define CAM_TRUE 1
|
|
|
|
#define XPT_CCB_INVALID -1 /* for signaling a bad CCB to free */
|
|
|
|
/*
|
|
* Union of all CCB types for kernel space allocation. This union should
|
|
* never be used for manipulating CCBs - its only use is for the allocation
|
|
* and deallocation of raw CCB space and is the return type of xpt_ccb_alloc
|
|
* and the argument to xpt_ccb_free.
|
|
*/
|
|
union ccb {
|
|
struct ccb_hdr ccb_h; /* For convenience */
|
|
struct ccb_scsiio csio;
|
|
struct ccb_getdev cgd;
|
|
struct ccb_getdevlist cgdl;
|
|
struct ccb_pathinq cpi;
|
|
struct ccb_relsim crs;
|
|
struct ccb_setasync csa;
|
|
struct ccb_setdev csd;
|
|
struct ccb_pathstats cpis;
|
|
struct ccb_getdevstats cgds;
|
|
struct ccb_dev_match cdm;
|
|
struct ccb_trans_settings cts;
|
|
struct ccb_calc_geometry ccg;
|
|
struct ccb_abort cab;
|
|
struct ccb_resetbus crb;
|
|
struct ccb_resetdev crd;
|
|
struct ccb_termio tio;
|
|
struct ccb_accept_tio atio;
|
|
struct ccb_scsiio ctio;
|
|
struct ccb_en_lun cel;
|
|
struct ccb_immed_notify cin;
|
|
struct ccb_notify_ack cna;
|
|
struct ccb_eng_inq cei;
|
|
struct ccb_eng_exec cee;
|
|
struct ccb_rescan crcn;
|
|
struct ccb_debug cdbg;
|
|
};
|
|
|
|
__BEGIN_DECLS
|
|
static __inline void
|
|
cam_fill_csio(struct ccb_scsiio *csio, u_int32_t retries,
|
|
void (*cbfcnp)(struct cam_periph *, union ccb *),
|
|
u_int32_t flags, u_int8_t tag_action,
|
|
u_int8_t *data_ptr, u_int32_t dxfer_len,
|
|
u_int8_t sense_len, u_int8_t cdb_len,
|
|
u_int32_t timeout);
|
|
|
|
static __inline void
|
|
cam_fill_ctio(struct ccb_scsiio *csio, u_int32_t retries,
|
|
void (*cbfcnp)(struct cam_periph *, union ccb *),
|
|
u_int32_t flags, u_int tag_action, u_int tag_id,
|
|
u_int init_id, u_int scsi_status, u_int8_t *data_ptr,
|
|
u_int32_t dxfer_len, u_int32_t timeout);
|
|
|
|
static __inline void
|
|
cam_fill_csio(struct ccb_scsiio *csio, u_int32_t retries,
|
|
void (*cbfcnp)(struct cam_periph *, union ccb *),
|
|
u_int32_t flags, u_int8_t tag_action,
|
|
u_int8_t *data_ptr, u_int32_t dxfer_len,
|
|
u_int8_t sense_len, u_int8_t cdb_len,
|
|
u_int32_t timeout)
|
|
{
|
|
csio->ccb_h.func_code = XPT_SCSI_IO;
|
|
csio->ccb_h.flags = flags;
|
|
csio->ccb_h.retry_count = retries;
|
|
csio->ccb_h.cbfcnp = cbfcnp;
|
|
csio->ccb_h.timeout = timeout;
|
|
csio->data_ptr = data_ptr;
|
|
csio->dxfer_len = dxfer_len;
|
|
csio->sense_len = sense_len;
|
|
csio->cdb_len = cdb_len;
|
|
csio->tag_action = tag_action;
|
|
}
|
|
|
|
static __inline void
|
|
cam_fill_ctio(struct ccb_scsiio *csio, u_int32_t retries,
|
|
void (*cbfcnp)(struct cam_periph *, union ccb *),
|
|
u_int32_t flags, u_int tag_action, u_int tag_id,
|
|
u_int init_id, u_int scsi_status, u_int8_t *data_ptr,
|
|
u_int32_t dxfer_len, u_int32_t timeout)
|
|
{
|
|
csio->ccb_h.func_code = XPT_CONT_TARGET_IO;
|
|
csio->ccb_h.flags = flags;
|
|
csio->ccb_h.retry_count = retries;
|
|
csio->ccb_h.cbfcnp = cbfcnp;
|
|
csio->ccb_h.timeout = timeout;
|
|
csio->data_ptr = data_ptr;
|
|
csio->dxfer_len = dxfer_len;
|
|
csio->scsi_status = scsi_status;
|
|
csio->tag_action = tag_action;
|
|
csio->tag_id = tag_id;
|
|
csio->init_id = init_id;
|
|
}
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* _CAM_CAM_CCB_H */
|