157 lines
4.7 KiB
C
157 lines
4.7 KiB
C
/* $NetBSD: scsi_base.c,v 1.69 1999/09/30 22:57:53 thorpej Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1998 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the NetBSD
|
|
* Foundation, Inc. and its contributors.
|
|
* 4. Neither the name of The NetBSD Foundation nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* 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/types.h>
|
|
#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(sc_link, flags)
|
|
struct scsipi_link *sc_link;
|
|
int flags;
|
|
{
|
|
struct scsi_changedef scsipi_cmd;
|
|
|
|
bzero(&scsipi_cmd, sizeof(scsipi_cmd));
|
|
scsipi_cmd.opcode = SCSI_CHANGE_DEFINITION;
|
|
scsipi_cmd.how = SC_SCSI_2;
|
|
|
|
return (scsipi_command(sc_link,
|
|
(struct scsipi_generic *) &scsipi_cmd, sizeof(scsipi_cmd),
|
|
0, 0, 2, 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.
|
|
*/
|
|
int
|
|
scsi_scsipi_cmd(sc_link, scsipi_cmd, cmdlen, data_addr, datalen,
|
|
retries, timeout, bp, flags)
|
|
struct scsipi_link *sc_link;
|
|
struct scsipi_generic *scsipi_cmd;
|
|
int cmdlen;
|
|
u_char *data_addr;
|
|
int datalen;
|
|
int retries;
|
|
int timeout;
|
|
struct buf *bp;
|
|
int flags;
|
|
{
|
|
struct scsipi_xfer *xs;
|
|
int error, s;
|
|
|
|
SC_DEBUG(sc_link, SDEV_DB2, ("scsi_scsipi_cmd\n"));
|
|
|
|
#ifdef DIAGNOSTIC
|
|
if (bp != NULL && (flags & XS_CTL_ASYNC) == 0)
|
|
panic("scsi_scsipi_cmd: buffer without async");
|
|
#endif
|
|
|
|
if ((xs = scsipi_make_xs(sc_link, scsipi_cmd, cmdlen, data_addr,
|
|
datalen, retries, timeout, bp, flags)) == NULL) {
|
|
if (bp != NULL) {
|
|
s = splbio();
|
|
bp->b_flags |= B_ERROR;
|
|
bp->b_error = ENOMEM;
|
|
biodone(bp);
|
|
splx(s);
|
|
}
|
|
return (ENOMEM);
|
|
}
|
|
|
|
/*
|
|
* Set the LUN in the CDB if we have an older device. We also
|
|
* set it for more modern SCSI-II devices "just in case".
|
|
*/
|
|
if ((sc_link->scsipi_scsi.scsi_version & SID_ANSII) <= 2)
|
|
xs->cmd->bytes[0] |=
|
|
((sc_link->scsipi_scsi.lun << SCSI_CMD_LUN_SHIFT) &
|
|
SCSI_CMD_LUN_MASK);
|
|
|
|
if ((error = scsipi_execute_xs(xs)) == EJUSTRETURN)
|
|
return (0);
|
|
|
|
/*
|
|
* we have finished with the xfer stuct, free it and
|
|
* check if anyone else needs to be started up.
|
|
*/
|
|
s = splbio();
|
|
scsipi_free_xs(xs, flags);
|
|
splx(s);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Utility routines often used in SCSI stuff
|
|
*/
|
|
|
|
|
|
/*
|
|
* Print out the scsi_link structure's address info.
|
|
*/
|
|
void
|
|
scsi_print_addr(sc_link)
|
|
struct scsipi_link *sc_link;
|
|
{
|
|
|
|
printf("%s(%s:%d:%d): ",
|
|
sc_link->device_softc ?
|
|
((struct device *)sc_link->device_softc)->dv_xname : "probe",
|
|
((struct device *)sc_link->adapter_softc)->dv_xname,
|
|
sc_link->scsipi_scsi.target, sc_link->scsipi_scsi.lun);
|
|
}
|