aca1dae3c4
is called *after* the driver `done' routine. This fixes disk I/O statistics on SCSI devices. Also, calling the `done' routine with a `complete' argument of 0 and actually having it do anything meaningful loses in at least 3 ways, so just nuke the argument altogether and don't call it this way. If the driver needs to do some error handling, that's what `err_handler' is for.
842 lines
21 KiB
C
842 lines
21 KiB
C
/* $NetBSD: scsi_base.c,v 1.43 1997/04/02 02:29:36 mycroft Exp $ */
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/*
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* Copyright (c) 1994, 1995, 1997 Charles M. Hannum. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Charles M. Hannum.
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* 4. 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 ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Originally written by Julian Elischer (julian@dialix.oz.au)
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*/
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/buf.h>
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#include <sys/uio.h>
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#include <sys/malloc.h>
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#include <sys/errno.h>
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#include <sys/device.h>
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#include <sys/proc.h>
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#include <scsi/scsi_all.h>
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#include <scsi/scsi_disk.h>
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#include <scsi/scsiconf.h>
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LIST_HEAD(xs_free_list, scsi_xfer) xs_free_list;
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static __inline struct scsi_xfer *scsi_make_xs __P((struct scsi_link *,
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struct scsi_generic *,
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int cmdlen,
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u_char *data_addr,
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int datalen,
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int retries,
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int timeout,
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struct buf *,
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int flags));
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int sc_err1 __P((struct scsi_xfer *, int));
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int scsi_interpret_sense __P((struct scsi_xfer *));
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/*
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* Get a scsi transfer structure for the caller. Charge the structure
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* to the device that is referenced by the sc_link structure. If the
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* sc_link structure has no 'credits' then the device already has the
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* maximum number or outstanding operations under way. In this stage,
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* wait on the structure so that when one is freed, we are awoken again
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* If the SCSI_NOSLEEP flag is set, then do not wait, but rather, return
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* a NULL pointer, signifying that no slots were available
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* Note in the link structure, that we are waiting on it.
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*/
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struct scsi_xfer *
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scsi_get_xs(sc_link, flags)
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struct scsi_link *sc_link; /* who to charge the xs to */
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int flags; /* if this call can sleep */
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{
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struct scsi_xfer *xs;
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int s;
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SC_DEBUG(sc_link, SDEV_DB3, ("scsi_get_xs\n"));
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s = splbio();
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while (sc_link->openings <= 0) {
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SC_DEBUG(sc_link, SDEV_DB3, ("sleeping\n"));
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if ((flags & SCSI_NOSLEEP) != 0) {
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splx(s);
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return 0;
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}
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sc_link->flags |= SDEV_WAITING;
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(void) tsleep(sc_link, PRIBIO, "getxs", 0);
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}
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sc_link->openings--;
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if ((xs = xs_free_list.lh_first) != NULL) {
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LIST_REMOVE(xs, free_list);
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splx(s);
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} else {
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splx(s);
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SC_DEBUG(sc_link, SDEV_DB3, ("making\n"));
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xs = malloc(sizeof(*xs), M_DEVBUF,
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((flags & SCSI_NOSLEEP) != 0 ? M_NOWAIT : M_WAITOK));
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if (!xs) {
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sc_print_addr(sc_link);
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printf("cannot allocate scsi xs\n");
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return 0;
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}
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}
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SC_DEBUG(sc_link, SDEV_DB3, ("returning\n"));
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xs->flags = INUSE | flags;
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return xs;
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}
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/*
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* Given a scsi_xfer struct, and a device (referenced through sc_link)
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* return the struct to the free pool and credit the device with it
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* If another process is waiting for an xs, do a wakeup, let it proceed
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*/
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void
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scsi_free_xs(xs, flags)
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struct scsi_xfer *xs;
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int flags;
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{
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struct scsi_link *sc_link = xs->sc_link;
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xs->flags &= ~INUSE;
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LIST_INSERT_HEAD(&xs_free_list, xs, free_list);
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SC_DEBUG(sc_link, SDEV_DB3, ("scsi_free_xs\n"));
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/* if was 0 and someone waits, wake them up */
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sc_link->openings++;
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if ((sc_link->flags & SDEV_WAITING) != 0) {
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sc_link->flags &= ~SDEV_WAITING;
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wakeup(sc_link);
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} else {
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if (sc_link->device->start) {
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SC_DEBUG(sc_link, SDEV_DB2, ("calling private start()\n"));
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(*(sc_link->device->start)) (sc_link->device_softc);
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}
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}
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}
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/*
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* Make a scsi_xfer, and return a pointer to it.
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*/
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static __inline struct scsi_xfer *
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scsi_make_xs(sc_link, scsi_cmd, cmdlen, data_addr, datalen,
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retries, timeout, bp, flags)
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struct scsi_link *sc_link;
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struct scsi_generic *scsi_cmd;
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int cmdlen;
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u_char *data_addr;
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int datalen;
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int retries;
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int timeout;
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struct buf *bp;
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int flags;
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{
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struct scsi_xfer *xs;
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if ((xs = scsi_get_xs(sc_link, flags)) == NULL)
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return NULL;
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/*
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* Fill out the scsi_xfer structure. We don't know whose context
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* the cmd is in, so copy it.
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*/
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xs->sc_link = sc_link;
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bcopy(scsi_cmd, &xs->cmdstore, cmdlen);
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xs->cmd = &xs->cmdstore;
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xs->cmdlen = cmdlen;
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xs->data = data_addr;
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xs->datalen = datalen;
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xs->retries = retries;
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xs->timeout = timeout;
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xs->bp = bp;
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/*
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* Set the LUN in the CDB if we have an older device. We also
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* set it for more modern SCSI-II devices "just in case".
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*/
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if ((sc_link->scsi_version & SID_ANSII) <= 2)
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xs->cmd->bytes[0] |=
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((sc_link->lun << SCSI_CMD_LUN_SHIFT) & SCSI_CMD_LUN_MASK);
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return xs;
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}
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/*
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* Find out from the device what its capacity is.
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*/
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u_long
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scsi_size(sc_link, flags)
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struct scsi_link *sc_link;
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int flags;
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{
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struct scsi_read_cap_data rdcap;
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struct scsi_read_capacity scsi_cmd;
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/*
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* make up a scsi command and ask the scsi driver to do
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* it for you.
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*/
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bzero(&scsi_cmd, sizeof(scsi_cmd));
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scsi_cmd.opcode = READ_CAPACITY;
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/*
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* If the command works, interpret the result as a 4 byte
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* number of blocks
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*/
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if (scsi_scsi_cmd(sc_link, (struct scsi_generic *)&scsi_cmd,
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sizeof(scsi_cmd), (u_char *)&rdcap, sizeof(rdcap),
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2, 20000, NULL, flags | SCSI_DATA_IN) != 0) {
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sc_print_addr(sc_link);
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printf("could not get size\n");
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return 0;
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}
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return _4btol(rdcap.addr) + 1;
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}
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/*
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* Get scsi driver to send a "are you ready?" command
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*/
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int
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scsi_test_unit_ready(sc_link, flags)
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struct scsi_link *sc_link;
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int flags;
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{
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struct scsi_test_unit_ready scsi_cmd;
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bzero(&scsi_cmd, sizeof(scsi_cmd));
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scsi_cmd.opcode = TEST_UNIT_READY;
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return scsi_scsi_cmd(sc_link, (struct scsi_generic *) &scsi_cmd,
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sizeof(scsi_cmd), 0, 0, 2, 10000, NULL, flags);
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}
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/*
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* Do a scsi operation, asking a device to run as SCSI-II if it can.
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*/
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int
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scsi_change_def(sc_link, flags)
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struct scsi_link *sc_link;
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int flags;
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{
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struct scsi_changedef scsi_cmd;
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bzero(&scsi_cmd, sizeof(scsi_cmd));
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scsi_cmd.opcode = CHANGE_DEFINITION;
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scsi_cmd.how = SC_SCSI_2;
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return scsi_scsi_cmd(sc_link, (struct scsi_generic *) &scsi_cmd,
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sizeof(scsi_cmd), 0, 0, 2, 100000, NULL, flags);
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}
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/*
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* Do a scsi operation asking a device what it is
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* Use the scsi_cmd routine in the switch table.
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*/
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int
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scsi_inquire(sc_link, inqbuf, flags)
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struct scsi_link *sc_link;
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struct scsi_inquiry_data *inqbuf;
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int flags;
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{
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struct scsi_inquiry scsi_cmd;
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bzero(&scsi_cmd, sizeof(scsi_cmd));
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scsi_cmd.opcode = INQUIRY;
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scsi_cmd.length = sizeof(struct scsi_inquiry_data);
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return scsi_scsi_cmd(sc_link, (struct scsi_generic *) &scsi_cmd,
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sizeof(scsi_cmd), (u_char *) inqbuf,
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sizeof(struct scsi_inquiry_data), 2, 10000, NULL,
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SCSI_DATA_IN | flags);
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}
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/*
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* Prevent or allow the user to remove the media
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*/
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int
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scsi_prevent(sc_link, type, flags)
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struct scsi_link *sc_link;
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int type, flags;
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{
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struct scsi_prevent scsi_cmd;
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bzero(&scsi_cmd, sizeof(scsi_cmd));
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scsi_cmd.opcode = PREVENT_ALLOW;
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scsi_cmd.how = type;
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return scsi_scsi_cmd(sc_link, (struct scsi_generic *) &scsi_cmd,
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sizeof(scsi_cmd), 0, 0, 2, 5000, NULL, flags);
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}
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/*
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* Get scsi driver to send a "start up" command
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*/
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int
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scsi_start(sc_link, type, flags)
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struct scsi_link *sc_link;
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int type, flags;
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{
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struct scsi_start_stop scsi_cmd;
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bzero(&scsi_cmd, sizeof(scsi_cmd));
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scsi_cmd.opcode = START_STOP;
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scsi_cmd.byte2 = 0x00;
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scsi_cmd.how = type;
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return scsi_scsi_cmd(sc_link, (struct scsi_generic *) &scsi_cmd,
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sizeof(scsi_cmd), 0, 0, 2,
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type == SSS_START ? 30000 : 10000, NULL, flags);
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}
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/*
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* This routine is called by the scsi interrupt when the transfer is complete.
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*/
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void
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scsi_done(xs)
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struct scsi_xfer *xs;
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{
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struct scsi_link *sc_link = xs->sc_link;
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struct buf *bp;
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int error;
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SC_DEBUG(sc_link, SDEV_DB2, ("scsi_done\n"));
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#ifdef SCSIDEBUG
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if ((sc_link->flags & SDEV_DB1) != 0)
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show_scsi_cmd(xs);
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#endif /* SCSIDEBUG */
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/*
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* If it's a user level request, bypass all usual completion processing,
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* let the user work it out.. We take reponsibility for freeing the
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* xs when the user returns. (and restarting the device's queue).
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*/
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if ((xs->flags & SCSI_USER) != 0) {
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SC_DEBUG(sc_link, SDEV_DB3, ("calling user done()\n"));
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scsi_user_done(xs); /* to take a copy of the sense etc. */
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SC_DEBUG(sc_link, SDEV_DB3, ("returned from user done()\n "));
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scsi_free_xs(xs, SCSI_NOSLEEP); /* restarts queue too */
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SC_DEBUG(sc_link, SDEV_DB3, ("returning to adapter\n"));
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return;
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}
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if (!((xs->flags & (SCSI_NOSLEEP | SCSI_POLL)) == SCSI_NOSLEEP)) {
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/*
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* if it's a normal upper level request, then ask
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* the upper level code to handle error checking
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* rather than doing it here at interrupt time
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*/
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wakeup(xs);
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return;
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}
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/*
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* Go and handle errors now.
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* If it returns ERESTART then we should RETRY
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*/
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retry:
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error = sc_err1(xs, 1);
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if (error == ERESTART) {
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switch ((*(sc_link->adapter->scsi_cmd)) (xs)) {
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case SUCCESSFULLY_QUEUED:
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return;
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case TRY_AGAIN_LATER:
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xs->error = XS_BUSY;
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case COMPLETE:
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goto retry;
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}
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}
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bp = xs->bp;
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if (bp) {
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if (error) {
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bp->b_error = error;
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bp->b_flags |= B_ERROR;
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bp->b_resid = bp->b_bcount;
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} else {
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bp->b_error = 0;
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bp->b_resid = xs->resid;
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}
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}
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if (sc_link->device->done) {
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/*
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* Tell the device the operation is actually complete.
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* No more will happen with this xfer. This for
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* notification of the upper-level driver only; they
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* won't be returning any meaningful information to us.
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*/
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(*sc_link->device->done)(xs);
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}
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scsi_free_xs(xs, SCSI_NOSLEEP);
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if (bp)
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biodone(bp);
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}
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int
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scsi_execute_xs(xs)
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struct scsi_xfer *xs;
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{
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int error;
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int s;
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xs->flags &= ~ITSDONE;
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xs->error = XS_NOERROR;
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xs->resid = xs->datalen;
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retry:
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/*
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* Do the transfer. If we are polling we will return:
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* COMPLETE, Was poll, and scsi_done has been called
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* TRY_AGAIN_LATER, Adapter short resources, try again
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*
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* if under full steam (interrupts) it will return:
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* SUCCESSFULLY_QUEUED, will do a wakeup when complete
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* TRY_AGAIN_LATER, (as for polling)
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* After the wakeup, we must still check if it succeeded
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*
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* If we have a SCSI_NOSLEEP (typically because we have a buf)
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* we just return. All the error proccessing and the buffer
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* code both expect us to return straight to them, so as soon
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* as the command is queued, return.
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*/
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switch ((*(xs->sc_link->adapter->scsi_cmd)) (xs)) {
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case SUCCESSFULLY_QUEUED:
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if ((xs->flags & (SCSI_NOSLEEP | SCSI_POLL)) == SCSI_NOSLEEP)
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return EJUSTRETURN;
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#ifdef DIAGNOSTIC
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if (xs->flags & SCSI_NOSLEEP)
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panic("scsi_execute_xs: NOSLEEP and POLL");
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#endif
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s = splbio();
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while ((xs->flags & ITSDONE) == 0)
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tsleep(xs, PRIBIO + 1, "scsi_scsi_cmd", 0);
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splx(s);
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case COMPLETE: /* Polling command completed ok */
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if (xs->bp)
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return EJUSTRETURN;
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doit:
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SC_DEBUG(xs->sc_link, SDEV_DB3, ("back in cmd()\n"));
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if ((error = sc_err1(xs, 0)) != ERESTART)
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return error;
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goto retry;
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case TRY_AGAIN_LATER: /* adapter resource shortage */
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xs->error = XS_BUSY;
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goto doit;
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default:
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panic("scsi_execute_xs: invalid return code");
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}
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#ifdef DIAGNOSTIC
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panic("scsi_execute_xs: impossible");
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#endif
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return EINVAL;
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}
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/*
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* ask the scsi driver to perform a command for us.
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* tell it where to read/write the data, and how
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* long the data is supposed to be. If we have a buf
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* to associate with the transfer, we need that too.
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*/
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int
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scsi_scsi_cmd(sc_link, scsi_cmd, cmdlen, data_addr, datalen,
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retries, timeout, bp, flags)
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struct scsi_link *sc_link;
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struct scsi_generic *scsi_cmd;
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int cmdlen;
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u_char *data_addr;
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int datalen;
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int retries;
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int timeout;
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struct buf *bp;
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int flags;
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{
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struct scsi_xfer *xs;
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int error;
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SC_DEBUG(sc_link, SDEV_DB2, ("scsi_cmd\n"));
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#ifdef DIAGNOSTIC
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if (bp != 0 && (flags & SCSI_NOSLEEP) == 0)
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panic("scsi_scsi_cmd: buffer without nosleep");
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#endif
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if ((xs = scsi_make_xs(sc_link, scsi_cmd, cmdlen, data_addr, datalen,
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retries, timeout, bp, flags)) == NULL)
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return ENOMEM;
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|
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if ((error = scsi_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.
|
|
*/
|
|
scsi_free_xs(xs, flags);
|
|
return error;
|
|
}
|
|
|
|
int
|
|
sc_err1(xs, async)
|
|
struct scsi_xfer *xs;
|
|
int async;
|
|
{
|
|
int error;
|
|
|
|
SC_DEBUG(xs->sc_link, SDEV_DB3, ("sc_err1,err = 0x%x \n", xs->error));
|
|
|
|
/*
|
|
* If it has a buf, we might be working with
|
|
* a request from the buffer cache or some other
|
|
* piece of code that requires us to process
|
|
* errors at inetrrupt time. We have probably
|
|
* been called by scsi_done()
|
|
*/
|
|
switch (xs->error) {
|
|
case XS_NOERROR: /* nearly always hit this one */
|
|
error = 0;
|
|
break;
|
|
|
|
case XS_SENSE:
|
|
if ((error = scsi_interpret_sense(xs)) == ERESTART)
|
|
goto retry;
|
|
SC_DEBUG(xs->sc_link, SDEV_DB3,
|
|
("scsi_interpret_sense returned %d\n", error));
|
|
break;
|
|
|
|
case XS_BUSY:
|
|
if (xs->retries) {
|
|
if ((xs->flags & SCSI_POLL) != 0)
|
|
delay(1000000);
|
|
else if ((xs->flags & SCSI_NOSLEEP) == 0)
|
|
tsleep(&lbolt, PRIBIO, "scbusy", 0);
|
|
else
|
|
#if 0
|
|
timeout(scsi_requeue, xs, hz);
|
|
#else
|
|
goto lose;
|
|
#endif
|
|
}
|
|
case XS_TIMEOUT:
|
|
retry:
|
|
if (xs->retries--) {
|
|
xs->error = XS_NOERROR;
|
|
xs->flags &= ~ITSDONE;
|
|
return ERESTART;
|
|
}
|
|
case XS_DRIVER_STUFFUP:
|
|
lose:
|
|
error = EIO;
|
|
break;
|
|
|
|
case XS_SELTIMEOUT:
|
|
/* XXX Disable device? */
|
|
error = EIO;
|
|
break;
|
|
|
|
default:
|
|
sc_print_addr(xs->sc_link);
|
|
printf("unknown error category from scsi driver\n");
|
|
error = EIO;
|
|
break;
|
|
}
|
|
|
|
return error;
|
|
}
|
|
|
|
/*
|
|
* Look at the returned sense and act on the error, determining
|
|
* the unix error number to pass back. (0 = report no error)
|
|
*
|
|
* THIS IS THE DEFAULT ERROR HANDLER
|
|
*/
|
|
int
|
|
scsi_interpret_sense(xs)
|
|
struct scsi_xfer *xs;
|
|
{
|
|
struct scsi_sense_data *sense;
|
|
struct scsi_link *sc_link = xs->sc_link;
|
|
u_int8_t key;
|
|
u_int32_t info;
|
|
int error;
|
|
|
|
static char *error_mes[] = {
|
|
"soft error (corrected)",
|
|
"not ready", "medium error",
|
|
"non-media hardware failure", "illegal request",
|
|
"unit attention", "readonly device",
|
|
"no data found", "vendor unique",
|
|
"copy aborted", "command aborted",
|
|
"search returned equal", "volume overflow",
|
|
"verify miscompare", "unknown error key"
|
|
};
|
|
|
|
sense = &xs->sense;
|
|
#ifdef SCSIDEBUG
|
|
if ((sc_link->flags & SDEV_DB1) != 0) {
|
|
int count;
|
|
printf("code%x valid%x ",
|
|
sense->error_code & SSD_ERRCODE,
|
|
sense->error_code & SSD_ERRCODE_VALID ? 1 : 0);
|
|
printf("seg%x key%x ili%x eom%x fmark%x\n",
|
|
sense->segment,
|
|
sense->flags & SSD_KEY,
|
|
sense->flags & SSD_ILI ? 1 : 0,
|
|
sense->flags & SSD_EOM ? 1 : 0,
|
|
sense->flags & SSD_FILEMARK ? 1 : 0);
|
|
printf("info: %x %x %x %x followed by %d extra bytes\n",
|
|
sense->info[0],
|
|
sense->info[1],
|
|
sense->info[2],
|
|
sense->info[3],
|
|
sense->extra_len);
|
|
printf("extra: ");
|
|
for (count = 0; count < sense->extra_len; count++)
|
|
printf("%x ", sense->extra_bytes[count]);
|
|
printf("\n");
|
|
}
|
|
#endif /*SCSIDEBUG */
|
|
/*
|
|
* If the device has it's own error handler, call it first.
|
|
* If it returns a legit error value, return that, otherwise
|
|
* it wants us to continue with normal error processing.
|
|
*/
|
|
if (sc_link->device->err_handler) {
|
|
SC_DEBUG(sc_link, SDEV_DB2, ("calling private err_handler()\n"));
|
|
error = (*sc_link->device->err_handler) (xs);
|
|
if (error != -1)
|
|
return error; /* error >= 0 better ? */
|
|
}
|
|
/* otherwise use the default */
|
|
switch (sense->error_code & SSD_ERRCODE) {
|
|
/*
|
|
* If it's code 70, use the extended stuff and interpret the key
|
|
*/
|
|
case 0x71: /* delayed error */
|
|
sc_print_addr(sc_link);
|
|
key = sense->flags & SSD_KEY;
|
|
printf(" DELAYED ERROR, key = 0x%x\n", key);
|
|
case 0x70:
|
|
if ((sense->error_code & SSD_ERRCODE_VALID) != 0)
|
|
info = _4btol(sense->info);
|
|
else
|
|
info = 0;
|
|
key = sense->flags & SSD_KEY;
|
|
|
|
switch (key) {
|
|
case 0x0: /* NO SENSE */
|
|
case 0x1: /* RECOVERED ERROR */
|
|
if (xs->resid == xs->datalen)
|
|
xs->resid = 0; /* not short read */
|
|
case 0xc: /* EQUAL */
|
|
error = 0;
|
|
break;
|
|
case 0x2: /* NOT READY */
|
|
if ((sc_link->flags & SDEV_REMOVABLE) != 0)
|
|
sc_link->flags &= ~SDEV_MEDIA_LOADED;
|
|
if ((xs->flags & SCSI_IGNORE_NOT_READY) != 0)
|
|
return 0;
|
|
if ((xs->flags & SCSI_SILENT) != 0)
|
|
return EIO;
|
|
error = EIO;
|
|
break;
|
|
case 0x5: /* ILLEGAL REQUEST */
|
|
if ((xs->flags & SCSI_IGNORE_ILLEGAL_REQUEST) != 0)
|
|
return 0;
|
|
if ((xs->flags & SCSI_SILENT) != 0)
|
|
return EIO;
|
|
error = EINVAL;
|
|
break;
|
|
case 0x6: /* UNIT ATTENTION */
|
|
if ((sc_link->flags & SDEV_REMOVABLE) != 0)
|
|
sc_link->flags &= ~SDEV_MEDIA_LOADED;
|
|
if ((xs->flags & SCSI_IGNORE_MEDIA_CHANGE) != 0 ||
|
|
/* XXX Should reupload any transient state. */
|
|
(sc_link->flags & SDEV_REMOVABLE) == 0)
|
|
return ERESTART;
|
|
if ((xs->flags & SCSI_SILENT) != 0)
|
|
return EIO;
|
|
error = EIO;
|
|
break;
|
|
case 0x7: /* DATA PROTECT */
|
|
error = EACCES;
|
|
break;
|
|
case 0x8: /* BLANK CHECK */
|
|
error = 0;
|
|
break;
|
|
case 0xb: /* COMMAND ABORTED */
|
|
error = ERESTART;
|
|
break;
|
|
case 0xd: /* VOLUME OVERFLOW */
|
|
error = ENOSPC;
|
|
break;
|
|
default:
|
|
error = EIO;
|
|
break;
|
|
}
|
|
|
|
if (key) {
|
|
sc_print_addr(sc_link);
|
|
printf("%s", error_mes[key - 1]);
|
|
if ((sense->error_code & SSD_ERRCODE_VALID) != 0) {
|
|
switch (key) {
|
|
case 0x2: /* NOT READY */
|
|
case 0x5: /* ILLEGAL REQUEST */
|
|
case 0x6: /* UNIT ATTENTION */
|
|
case 0x7: /* DATA PROTECT */
|
|
break;
|
|
case 0x8: /* BLANK CHECK */
|
|
printf(", requested size: %d (decimal)",
|
|
info);
|
|
break;
|
|
case 0xb:
|
|
if (xs->retries)
|
|
printf(", retrying");
|
|
printf(", cmd 0x%x, info 0x%x",
|
|
xs->cmd->opcode, info);
|
|
break;
|
|
default:
|
|
printf(", info = %d (decimal)", info);
|
|
}
|
|
}
|
|
if (sense->extra_len != 0) {
|
|
int n;
|
|
printf(", data =");
|
|
for (n = 0; n < sense->extra_len; n++)
|
|
printf(" %02x", sense->extra_bytes[n]);
|
|
}
|
|
printf("\n");
|
|
}
|
|
return error;
|
|
|
|
/*
|
|
* Not code 70, just report it
|
|
*/
|
|
default:
|
|
sc_print_addr(sc_link);
|
|
printf("error code %d",
|
|
sense->error_code & SSD_ERRCODE);
|
|
if ((sense->error_code & SSD_ERRCODE_VALID) != 0) {
|
|
struct scsi_sense_data_unextended *usense =
|
|
(struct scsi_sense_data_unextended *)sense;
|
|
printf(" at block no. %d (decimal)",
|
|
_3btol(usense->block));
|
|
}
|
|
printf("\n");
|
|
return EIO;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Utility routines often used in SCSI stuff
|
|
*/
|
|
|
|
|
|
/*
|
|
* Print out the scsi_link structure's address info.
|
|
*/
|
|
void
|
|
sc_print_addr(sc_link)
|
|
struct scsi_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->target, sc_link->lun);
|
|
}
|
|
|
|
#ifdef SCSIDEBUG
|
|
/*
|
|
* Given a scsi_xfer, dump the request, in all it's glory
|
|
*/
|
|
void
|
|
show_scsi_xs(xs)
|
|
struct scsi_xfer *xs;
|
|
{
|
|
printf("xs(%p): ", xs);
|
|
printf("flg(0x%x)", xs->flags);
|
|
printf("sc_link(%p)", xs->sc_link);
|
|
printf("retr(0x%x)", xs->retries);
|
|
printf("timo(0x%x)", xs->timeout);
|
|
printf("cmd(%p)", xs->cmd);
|
|
printf("len(0x%x)", xs->cmdlen);
|
|
printf("data(%p)", xs->data);
|
|
printf("len(0x%x)", xs->datalen);
|
|
printf("res(0x%x)", xs->resid);
|
|
printf("err(0x%x)", xs->error);
|
|
printf("bp(%p)", xs->bp);
|
|
show_scsi_cmd(xs);
|
|
}
|
|
|
|
void
|
|
show_scsi_cmd(xs)
|
|
struct scsi_xfer *xs;
|
|
{
|
|
u_char *b = (u_char *) xs->cmd;
|
|
int i = 0;
|
|
|
|
sc_print_addr(xs->sc_link);
|
|
printf("command: ");
|
|
|
|
if ((xs->flags & SCSI_RESET) == 0) {
|
|
while (i < xs->cmdlen) {
|
|
if (i)
|
|
printf(",");
|
|
printf("%x", b[i++]);
|
|
}
|
|
printf("-[%d bytes]\n", xs->datalen);
|
|
if (xs->datalen)
|
|
show_mem(xs->data, min(64, xs->datalen));
|
|
} else
|
|
printf("-RESET-\n");
|
|
}
|
|
|
|
void
|
|
show_mem(address, num)
|
|
u_char *address;
|
|
int num;
|
|
{
|
|
int x;
|
|
|
|
printf("------------------------------");
|
|
for (x = 0; x < num; x++) {
|
|
if ((x % 16) == 0)
|
|
printf("\n%03d: ", x);
|
|
printf("%02x ", *address++);
|
|
}
|
|
printf("\n------------------------------\n");
|
|
}
|
|
#endif /*SCSIDEBUG */
|