119 lines
3.6 KiB
C
119 lines
3.6 KiB
C
/* $NetBSD: scsi_base.c,v 1.89 2008/04/28 20:23:57 martin Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1998, 2004 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Charles M. Hannum.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
|
|
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
|
|
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
|
|
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__KERNEL_RCSID(0, "$NetBSD: scsi_base.c,v 1.89 2008/04/28 20:23:57 martin Exp $");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/buf.h>
|
|
#include <sys/uio.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/errno.h>
|
|
#include <sys/device.h>
|
|
#include <sys/proc.h>
|
|
|
|
#include <dev/scsipi/scsipi_all.h>
|
|
#include <dev/scsipi/scsi_all.h>
|
|
#include <dev/scsipi/scsi_disk.h>
|
|
#include <dev/scsipi/scsiconf.h>
|
|
#include <dev/scsipi/scsipi_base.h>
|
|
|
|
/*
|
|
* Do a scsi operation, asking a device to run as SCSI-II if it can.
|
|
*/
|
|
int
|
|
scsi_change_def(struct scsipi_periph *periph, int flags)
|
|
{
|
|
struct scsi_changedef cmd;
|
|
|
|
memset(&cmd, 0, sizeof(cmd));
|
|
cmd.opcode = SCSI_CHANGE_DEFINITION;
|
|
cmd.how = SC_SCSI_2;
|
|
|
|
return (scsipi_command(periph, (void *)&cmd, sizeof(cmd), 0, 0,
|
|
SCSIPIRETRIES, 100000, NULL, flags));
|
|
}
|
|
|
|
/*
|
|
* ask the scsi driver to perform a command for us.
|
|
* tell it where to read/write the data, and how
|
|
* long the data is supposed to be. If we have a buf
|
|
* to associate with the transfer, we need that too.
|
|
*/
|
|
void
|
|
scsi_scsipi_cmd(struct scsipi_xfer *xs)
|
|
{
|
|
struct scsipi_periph *periph = xs->xs_periph;
|
|
|
|
SC_DEBUG(periph, SCSIPI_DB2, ("scsi_scsipi_cmd\n"));
|
|
|
|
/*
|
|
* Set the LUN in the CDB if we have an older device. We also
|
|
* set it for more modern SCSI-2 devices "just in case".
|
|
*/
|
|
if (periph->periph_version <= 2)
|
|
xs->cmd->bytes[0] |=
|
|
((periph->periph_lun << SCSI_CMD_LUN_SHIFT) &
|
|
SCSI_CMD_LUN_MASK);
|
|
}
|
|
|
|
/*
|
|
* Utility routines often used in SCSI stuff
|
|
*/
|
|
|
|
/*
|
|
* Print out the periph's address info.
|
|
*/
|
|
void
|
|
scsi_print_addr(struct scsipi_periph *periph)
|
|
{
|
|
struct scsipi_channel *chan = periph->periph_channel;
|
|
struct scsipi_adapter *adapt = chan->chan_adapter;
|
|
|
|
printf("%s(%s:%d:%d:%d): ", periph->periph_dev != NULL ?
|
|
device_xname(periph->periph_dev) : "probe",
|
|
device_xname(adapt->adapt_dev),
|
|
chan->chan_channel, periph->periph_target,
|
|
periph->periph_lun);
|
|
}
|
|
|
|
/*
|
|
* Kill off all pending xfers for a periph.
|
|
*
|
|
* Must be called at splbio().
|
|
*/
|
|
void
|
|
scsi_kill_pending(struct scsipi_periph *periph)
|
|
{
|
|
}
|