35f2c3dc00
This condition can never be true as functions are called from single place and the checks just pollute the code and confuse Clang Static Analyzer.
1656 lines
42 KiB
C
1656 lines
42 KiB
C
/*-
|
|
* Copyright (c) 1997 Justin T. Gibbs.
|
|
* Copyright (c) 1997, 1998, 1999 Kenneth D. Merry.
|
|
* All rights reserved.
|
|
*
|
|
* 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,
|
|
* without modification, immediately at the beginning of the file.
|
|
* 2. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
|
|
*/
|
|
|
|
/*
|
|
* Derived from the NetBSD SCSI changer driver.
|
|
*
|
|
* $NetBSD: ch.c,v 1.32 1998/01/12 09:49:12 thorpej Exp $
|
|
*
|
|
*/
|
|
/*-
|
|
* Copyright (c) 1996, 1997 Jason R. Thorpe <thorpej@and.com>
|
|
* All rights reserved.
|
|
*
|
|
* Partially based on an autochanger driver written by Stefan Grefen
|
|
* and on an autochanger driver written by the Systems Programming Group
|
|
* at the University of Utah Computer Science Department.
|
|
*
|
|
* 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 acknowledgements:
|
|
* This product includes software developed by Jason R. Thorpe
|
|
* for And Communications, http://www.and.com/
|
|
* 4. The name of the author may not be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/queue.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/types.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/fcntl.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/chio.h>
|
|
#include <sys/errno.h>
|
|
#include <sys/devicestat.h>
|
|
|
|
#include <cam/cam.h>
|
|
#include <cam/cam_ccb.h>
|
|
#include <cam/cam_periph.h>
|
|
#include <cam/cam_xpt_periph.h>
|
|
#include <cam/cam_debug.h>
|
|
|
|
#include <cam/scsi/scsi_all.h>
|
|
#include <cam/scsi/scsi_message.h>
|
|
#include <cam/scsi/scsi_ch.h>
|
|
|
|
/*
|
|
* Timeout definitions for various changer related commands. They may
|
|
* be too short for some devices (especially the timeout for INITIALIZE
|
|
* ELEMENT STATUS).
|
|
*/
|
|
|
|
static const u_int32_t CH_TIMEOUT_MODE_SENSE = 6000;
|
|
static const u_int32_t CH_TIMEOUT_MOVE_MEDIUM = 100000;
|
|
static const u_int32_t CH_TIMEOUT_EXCHANGE_MEDIUM = 100000;
|
|
static const u_int32_t CH_TIMEOUT_POSITION_TO_ELEMENT = 100000;
|
|
static const u_int32_t CH_TIMEOUT_READ_ELEMENT_STATUS = 10000;
|
|
static const u_int32_t CH_TIMEOUT_SEND_VOLTAG = 10000;
|
|
static const u_int32_t CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS = 500000;
|
|
|
|
typedef enum {
|
|
CH_FLAG_INVALID = 0x001
|
|
} ch_flags;
|
|
|
|
typedef enum {
|
|
CH_STATE_PROBE,
|
|
CH_STATE_NORMAL
|
|
} ch_state;
|
|
|
|
typedef enum {
|
|
CH_CCB_PROBE,
|
|
CH_CCB_WAITING
|
|
} ch_ccb_types;
|
|
|
|
typedef enum {
|
|
CH_Q_NONE = 0x00,
|
|
CH_Q_NO_DBD = 0x01
|
|
} ch_quirks;
|
|
|
|
#define ccb_state ppriv_field0
|
|
#define ccb_bp ppriv_ptr1
|
|
|
|
struct scsi_mode_sense_data {
|
|
struct scsi_mode_header_6 header;
|
|
struct scsi_mode_blk_desc blk_desc;
|
|
union {
|
|
struct page_element_address_assignment ea;
|
|
struct page_transport_geometry_parameters tg;
|
|
struct page_device_capabilities cap;
|
|
} pages;
|
|
};
|
|
|
|
struct ch_softc {
|
|
ch_flags flags;
|
|
ch_state state;
|
|
ch_quirks quirks;
|
|
union ccb saved_ccb;
|
|
struct devstat *device_stats;
|
|
struct cdev *dev;
|
|
|
|
int sc_picker; /* current picker */
|
|
|
|
/*
|
|
* The following information is obtained from the
|
|
* element address assignment page.
|
|
*/
|
|
int sc_firsts[CHET_MAX + 1]; /* firsts */
|
|
int sc_counts[CHET_MAX + 1]; /* counts */
|
|
|
|
/*
|
|
* The following mask defines the legal combinations
|
|
* of elements for the MOVE MEDIUM command.
|
|
*/
|
|
u_int8_t sc_movemask[CHET_MAX + 1];
|
|
|
|
/*
|
|
* As above, but for EXCHANGE MEDIUM.
|
|
*/
|
|
u_int8_t sc_exchangemask[CHET_MAX + 1];
|
|
|
|
/*
|
|
* Quirks; see below. XXX KDM not implemented yet
|
|
*/
|
|
int sc_settledelay; /* delay for settle */
|
|
};
|
|
|
|
static d_open_t chopen;
|
|
static d_close_t chclose;
|
|
static d_ioctl_t chioctl;
|
|
static periph_init_t chinit;
|
|
static periph_ctor_t chregister;
|
|
static periph_oninv_t choninvalidate;
|
|
static periph_dtor_t chcleanup;
|
|
static periph_start_t chstart;
|
|
static void chasync(void *callback_arg, u_int32_t code,
|
|
struct cam_path *path, void *arg);
|
|
static void chdone(struct cam_periph *periph,
|
|
union ccb *done_ccb);
|
|
static int cherror(union ccb *ccb, u_int32_t cam_flags,
|
|
u_int32_t sense_flags);
|
|
static int chmove(struct cam_periph *periph,
|
|
struct changer_move *cm);
|
|
static int chexchange(struct cam_periph *periph,
|
|
struct changer_exchange *ce);
|
|
static int chposition(struct cam_periph *periph,
|
|
struct changer_position *cp);
|
|
static int chgetelemstatus(struct cam_periph *periph,
|
|
struct changer_element_status_request *csr);
|
|
static int chsetvoltag(struct cam_periph *periph,
|
|
struct changer_set_voltag_request *csvr);
|
|
static int chielem(struct cam_periph *periph,
|
|
unsigned int timeout);
|
|
static int chgetparams(struct cam_periph *periph);
|
|
|
|
static struct periph_driver chdriver =
|
|
{
|
|
chinit, "ch",
|
|
TAILQ_HEAD_INITIALIZER(chdriver.units), /* generation */ 0
|
|
};
|
|
|
|
PERIPHDRIVER_DECLARE(ch, chdriver);
|
|
|
|
static struct cdevsw ch_cdevsw = {
|
|
.d_version = D_VERSION,
|
|
.d_flags = D_TRACKCLOSE,
|
|
.d_open = chopen,
|
|
.d_close = chclose,
|
|
.d_ioctl = chioctl,
|
|
.d_name = "ch",
|
|
};
|
|
|
|
static MALLOC_DEFINE(M_SCSICH, "scsi_ch", "scsi_ch buffers");
|
|
|
|
static void
|
|
chinit(void)
|
|
{
|
|
cam_status status;
|
|
|
|
/*
|
|
* Install a global async callback. This callback will
|
|
* receive async callbacks like "new device found".
|
|
*/
|
|
status = xpt_register_async(AC_FOUND_DEVICE, chasync, NULL, NULL);
|
|
|
|
if (status != CAM_REQ_CMP) {
|
|
printf("ch: Failed to attach master async callback "
|
|
"due to status 0x%x!\n", status);
|
|
}
|
|
}
|
|
|
|
static void
|
|
choninvalidate(struct cam_periph *periph)
|
|
{
|
|
struct ch_softc *softc;
|
|
|
|
softc = (struct ch_softc *)periph->softc;
|
|
|
|
/*
|
|
* De-register any async callbacks.
|
|
*/
|
|
xpt_register_async(0, chasync, periph, periph->path);
|
|
|
|
softc->flags |= CH_FLAG_INVALID;
|
|
|
|
xpt_print(periph->path, "lost device\n");
|
|
|
|
}
|
|
|
|
static void
|
|
chcleanup(struct cam_periph *periph)
|
|
{
|
|
struct ch_softc *softc;
|
|
|
|
softc = (struct ch_softc *)periph->softc;
|
|
|
|
xpt_print(periph->path, "removing device entry\n");
|
|
devstat_remove_entry(softc->device_stats);
|
|
cam_periph_unlock(periph);
|
|
destroy_dev(softc->dev);
|
|
cam_periph_lock(periph);
|
|
free(softc, M_DEVBUF);
|
|
}
|
|
|
|
static void
|
|
chasync(void *callback_arg, u_int32_t code, struct cam_path *path, void *arg)
|
|
{
|
|
struct cam_periph *periph;
|
|
|
|
periph = (struct cam_periph *)callback_arg;
|
|
|
|
switch(code) {
|
|
case AC_FOUND_DEVICE:
|
|
{
|
|
struct ccb_getdev *cgd;
|
|
cam_status status;
|
|
|
|
cgd = (struct ccb_getdev *)arg;
|
|
if (cgd == NULL)
|
|
break;
|
|
|
|
if (cgd->protocol != PROTO_SCSI)
|
|
break;
|
|
|
|
if (SID_TYPE(&cgd->inq_data)!= T_CHANGER)
|
|
break;
|
|
|
|
/*
|
|
* Allocate a peripheral instance for
|
|
* this device and start the probe
|
|
* process.
|
|
*/
|
|
status = cam_periph_alloc(chregister, choninvalidate,
|
|
chcleanup, chstart, "ch",
|
|
CAM_PERIPH_BIO, cgd->ccb_h.path,
|
|
chasync, AC_FOUND_DEVICE, cgd);
|
|
|
|
if (status != CAM_REQ_CMP
|
|
&& status != CAM_REQ_INPROG)
|
|
printf("chasync: Unable to probe new device "
|
|
"due to status 0x%x\n", status);
|
|
|
|
break;
|
|
|
|
}
|
|
default:
|
|
cam_periph_async(periph, code, path, arg);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static cam_status
|
|
chregister(struct cam_periph *periph, void *arg)
|
|
{
|
|
struct ch_softc *softc;
|
|
struct ccb_getdev *cgd;
|
|
struct ccb_pathinq cpi;
|
|
|
|
cgd = (struct ccb_getdev *)arg;
|
|
if (cgd == NULL) {
|
|
printf("chregister: no getdev CCB, can't register device\n");
|
|
return(CAM_REQ_CMP_ERR);
|
|
}
|
|
|
|
softc = (struct ch_softc *)malloc(sizeof(*softc),M_DEVBUF,M_NOWAIT);
|
|
|
|
if (softc == NULL) {
|
|
printf("chregister: Unable to probe new device. "
|
|
"Unable to allocate softc\n");
|
|
return(CAM_REQ_CMP_ERR);
|
|
}
|
|
|
|
bzero(softc, sizeof(*softc));
|
|
softc->state = CH_STATE_PROBE;
|
|
periph->softc = softc;
|
|
softc->quirks = CH_Q_NONE;
|
|
|
|
bzero(&cpi, sizeof(cpi));
|
|
xpt_setup_ccb(&cpi.ccb_h, periph->path, CAM_PRIORITY_NORMAL);
|
|
cpi.ccb_h.func_code = XPT_PATH_INQ;
|
|
xpt_action((union ccb *)&cpi);
|
|
|
|
/*
|
|
* Changers don't have a blocksize, and obviously don't support
|
|
* tagged queueing.
|
|
*/
|
|
cam_periph_unlock(periph);
|
|
softc->device_stats = devstat_new_entry("ch",
|
|
periph->unit_number, 0,
|
|
DEVSTAT_NO_BLOCKSIZE | DEVSTAT_NO_ORDERED_TAGS,
|
|
SID_TYPE(&cgd->inq_data) |
|
|
XPORT_DEVSTAT_TYPE(cpi.transport),
|
|
DEVSTAT_PRIORITY_OTHER);
|
|
|
|
/* Register the device */
|
|
softc->dev = make_dev(&ch_cdevsw, periph->unit_number, UID_ROOT,
|
|
GID_OPERATOR, 0600, "%s%d", periph->periph_name,
|
|
periph->unit_number);
|
|
cam_periph_lock(periph);
|
|
softc->dev->si_drv1 = periph;
|
|
|
|
/*
|
|
* Add an async callback so that we get
|
|
* notified if this device goes away.
|
|
*/
|
|
xpt_register_async(AC_LOST_DEVICE, chasync, periph, periph->path);
|
|
|
|
/*
|
|
* Lock this periph until we are setup.
|
|
* This first call can't block
|
|
*/
|
|
(void)cam_periph_hold(periph, PRIBIO);
|
|
xpt_schedule(periph, CAM_PRIORITY_DEV);
|
|
|
|
return(CAM_REQ_CMP);
|
|
}
|
|
|
|
static int
|
|
chopen(struct cdev *dev, int flags, int fmt, struct thread *td)
|
|
{
|
|
struct cam_periph *periph;
|
|
struct ch_softc *softc;
|
|
int error;
|
|
|
|
periph = (struct cam_periph *)dev->si_drv1;
|
|
if (cam_periph_acquire(periph) != CAM_REQ_CMP)
|
|
return (ENXIO);
|
|
|
|
softc = (struct ch_softc *)periph->softc;
|
|
|
|
cam_periph_lock(periph);
|
|
|
|
if (softc->flags & CH_FLAG_INVALID) {
|
|
cam_periph_release_locked(periph);
|
|
cam_periph_unlock(periph);
|
|
return(ENXIO);
|
|
}
|
|
|
|
if ((error = cam_periph_hold(periph, PRIBIO | PCATCH)) != 0) {
|
|
cam_periph_unlock(periph);
|
|
cam_periph_release(periph);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Load information about this changer device into the softc.
|
|
*/
|
|
if ((error = chgetparams(periph)) != 0) {
|
|
cam_periph_release_locked(periph);
|
|
cam_periph_unlock(periph);
|
|
return(error);
|
|
}
|
|
|
|
cam_periph_unhold(periph);
|
|
cam_periph_unlock(periph);
|
|
|
|
return(error);
|
|
}
|
|
|
|
static int
|
|
chclose(struct cdev *dev, int flag, int fmt, struct thread *td)
|
|
{
|
|
struct cam_periph *periph;
|
|
|
|
periph = (struct cam_periph *)dev->si_drv1;
|
|
if (periph == NULL)
|
|
return(ENXIO);
|
|
|
|
cam_periph_release(periph);
|
|
|
|
return(0);
|
|
}
|
|
|
|
static void
|
|
chstart(struct cam_periph *periph, union ccb *start_ccb)
|
|
{
|
|
struct ch_softc *softc;
|
|
|
|
softc = (struct ch_softc *)periph->softc;
|
|
|
|
switch (softc->state) {
|
|
case CH_STATE_NORMAL:
|
|
{
|
|
if (periph->immediate_priority <= periph->pinfo.priority){
|
|
start_ccb->ccb_h.ccb_state = CH_CCB_WAITING;
|
|
|
|
SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
|
|
periph_links.sle);
|
|
periph->immediate_priority = CAM_PRIORITY_NONE;
|
|
wakeup(&periph->ccb_list);
|
|
}
|
|
break;
|
|
}
|
|
case CH_STATE_PROBE:
|
|
{
|
|
int mode_buffer_len;
|
|
void *mode_buffer;
|
|
|
|
/*
|
|
* Include the block descriptor when calculating the mode
|
|
* buffer length,
|
|
*/
|
|
mode_buffer_len = sizeof(struct scsi_mode_header_6) +
|
|
sizeof(struct scsi_mode_blk_desc) +
|
|
sizeof(struct page_element_address_assignment);
|
|
|
|
mode_buffer = malloc(mode_buffer_len, M_SCSICH, M_NOWAIT);
|
|
|
|
if (mode_buffer == NULL) {
|
|
printf("chstart: couldn't malloc mode sense data\n");
|
|
break;
|
|
}
|
|
bzero(mode_buffer, mode_buffer_len);
|
|
|
|
/*
|
|
* Get the element address assignment page.
|
|
*/
|
|
scsi_mode_sense(&start_ccb->csio,
|
|
/* retries */ 1,
|
|
/* cbfcnp */ chdone,
|
|
/* tag_action */ MSG_SIMPLE_Q_TAG,
|
|
/* dbd */ (softc->quirks & CH_Q_NO_DBD) ?
|
|
FALSE : TRUE,
|
|
/* page_code */ SMS_PAGE_CTRL_CURRENT,
|
|
/* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE,
|
|
/* param_buf */ (u_int8_t *)mode_buffer,
|
|
/* param_len */ mode_buffer_len,
|
|
/* sense_len */ SSD_FULL_SIZE,
|
|
/* timeout */ CH_TIMEOUT_MODE_SENSE);
|
|
|
|
start_ccb->ccb_h.ccb_bp = NULL;
|
|
start_ccb->ccb_h.ccb_state = CH_CCB_PROBE;
|
|
xpt_action(start_ccb);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
chdone(struct cam_periph *periph, union ccb *done_ccb)
|
|
{
|
|
struct ch_softc *softc;
|
|
struct ccb_scsiio *csio;
|
|
|
|
softc = (struct ch_softc *)periph->softc;
|
|
csio = &done_ccb->csio;
|
|
|
|
switch(done_ccb->ccb_h.ccb_state) {
|
|
case CH_CCB_PROBE:
|
|
{
|
|
struct scsi_mode_header_6 *mode_header;
|
|
struct page_element_address_assignment *ea;
|
|
char announce_buf[80];
|
|
|
|
|
|
mode_header = (struct scsi_mode_header_6 *)csio->data_ptr;
|
|
|
|
ea = (struct page_element_address_assignment *)
|
|
find_mode_page_6(mode_header);
|
|
|
|
if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP){
|
|
|
|
softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea);
|
|
softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte);
|
|
softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea);
|
|
softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse);
|
|
softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea);
|
|
softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee);
|
|
softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea);
|
|
softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte);
|
|
softc->sc_picker = softc->sc_firsts[CHET_MT];
|
|
|
|
#define PLURAL(c) (c) == 1 ? "" : "s"
|
|
snprintf(announce_buf, sizeof(announce_buf),
|
|
"%d slot%s, %d drive%s, "
|
|
"%d picker%s, %d portal%s",
|
|
softc->sc_counts[CHET_ST],
|
|
PLURAL(softc->sc_counts[CHET_ST]),
|
|
softc->sc_counts[CHET_DT],
|
|
PLURAL(softc->sc_counts[CHET_DT]),
|
|
softc->sc_counts[CHET_MT],
|
|
PLURAL(softc->sc_counts[CHET_MT]),
|
|
softc->sc_counts[CHET_IE],
|
|
PLURAL(softc->sc_counts[CHET_IE]));
|
|
#undef PLURAL
|
|
} else {
|
|
int error;
|
|
|
|
error = cherror(done_ccb, CAM_RETRY_SELTO,
|
|
SF_RETRY_UA | SF_NO_PRINT);
|
|
/*
|
|
* Retry any UNIT ATTENTION type errors. They
|
|
* are expected at boot.
|
|
*/
|
|
if (error == ERESTART) {
|
|
/*
|
|
* A retry was scheuled, so
|
|
* just return.
|
|
*/
|
|
return;
|
|
} else if (error != 0) {
|
|
int retry_scheduled;
|
|
struct scsi_mode_sense_6 *sms;
|
|
|
|
sms = (struct scsi_mode_sense_6 *)
|
|
done_ccb->csio.cdb_io.cdb_bytes;
|
|
|
|
/*
|
|
* Check to see if block descriptors were
|
|
* disabled. Some devices don't like that.
|
|
* We're taking advantage of the fact that
|
|
* the first few bytes of the 6 and 10 byte
|
|
* mode sense commands are the same. If
|
|
* block descriptors were disabled, enable
|
|
* them and re-send the command.
|
|
*/
|
|
if (sms->byte2 & SMS_DBD) {
|
|
sms->byte2 &= ~SMS_DBD;
|
|
xpt_action(done_ccb);
|
|
softc->quirks |= CH_Q_NO_DBD;
|
|
retry_scheduled = 1;
|
|
} else
|
|
retry_scheduled = 0;
|
|
|
|
/* Don't wedge this device's queue */
|
|
if ((done_ccb->ccb_h.status & CAM_DEV_QFRZN) != 0)
|
|
cam_release_devq(done_ccb->ccb_h.path,
|
|
/*relsim_flags*/0,
|
|
/*reduction*/0,
|
|
/*timeout*/0,
|
|
/*getcount_only*/0);
|
|
|
|
if (retry_scheduled)
|
|
return;
|
|
|
|
if ((done_ccb->ccb_h.status & CAM_STATUS_MASK)
|
|
== CAM_SCSI_STATUS_ERROR)
|
|
scsi_sense_print(&done_ccb->csio);
|
|
else {
|
|
xpt_print(periph->path,
|
|
"got CAM status %#x\n",
|
|
done_ccb->ccb_h.status);
|
|
}
|
|
xpt_print(periph->path, "fatal error, failed "
|
|
"to attach to device\n");
|
|
|
|
cam_periph_invalidate(periph);
|
|
|
|
announce_buf[0] = '\0';
|
|
}
|
|
}
|
|
if (announce_buf[0] != '\0')
|
|
xpt_announce_periph(periph, announce_buf);
|
|
softc->state = CH_STATE_NORMAL;
|
|
free(mode_header, M_SCSICH);
|
|
/*
|
|
* Since our peripheral may be invalidated by an error
|
|
* above or an external event, we must release our CCB
|
|
* before releasing the probe lock on the peripheral.
|
|
* The peripheral will only go away once the last lock
|
|
* is removed, and we need it around for the CCB release
|
|
* operation.
|
|
*/
|
|
xpt_release_ccb(done_ccb);
|
|
cam_periph_unhold(periph);
|
|
return;
|
|
}
|
|
case CH_CCB_WAITING:
|
|
{
|
|
/* Caller will release the CCB */
|
|
wakeup(&done_ccb->ccb_h.cbfcnp);
|
|
return;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
xpt_release_ccb(done_ccb);
|
|
}
|
|
|
|
static int
|
|
cherror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
|
|
{
|
|
struct ch_softc *softc;
|
|
struct cam_periph *periph;
|
|
|
|
periph = xpt_path_periph(ccb->ccb_h.path);
|
|
softc = (struct ch_softc *)periph->softc;
|
|
|
|
return (cam_periph_error(ccb, cam_flags, sense_flags,
|
|
&softc->saved_ccb));
|
|
}
|
|
|
|
static int
|
|
chioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
|
|
{
|
|
struct cam_periph *periph;
|
|
struct ch_softc *softc;
|
|
int error;
|
|
|
|
periph = (struct cam_periph *)dev->si_drv1;
|
|
if (periph == NULL)
|
|
return(ENXIO);
|
|
|
|
cam_periph_lock(periph);
|
|
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering chioctl\n"));
|
|
|
|
softc = (struct ch_softc *)periph->softc;
|
|
|
|
error = 0;
|
|
|
|
CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
|
|
("trying to do ioctl %#lx\n", cmd));
|
|
|
|
/*
|
|
* If this command can change the device's state, we must
|
|
* have the device open for writing.
|
|
*/
|
|
switch (cmd) {
|
|
case CHIOGPICKER:
|
|
case CHIOGPARAMS:
|
|
case CHIOGSTATUS:
|
|
break;
|
|
|
|
default:
|
|
if ((flag & FWRITE) == 0) {
|
|
cam_periph_unlock(periph);
|
|
return (EBADF);
|
|
}
|
|
}
|
|
|
|
switch (cmd) {
|
|
case CHIOMOVE:
|
|
error = chmove(periph, (struct changer_move *)addr);
|
|
break;
|
|
|
|
case CHIOEXCHANGE:
|
|
error = chexchange(periph, (struct changer_exchange *)addr);
|
|
break;
|
|
|
|
case CHIOPOSITION:
|
|
error = chposition(periph, (struct changer_position *)addr);
|
|
break;
|
|
|
|
case CHIOGPICKER:
|
|
*(int *)addr = softc->sc_picker - softc->sc_firsts[CHET_MT];
|
|
break;
|
|
|
|
case CHIOSPICKER:
|
|
{
|
|
int new_picker = *(int *)addr;
|
|
|
|
if (new_picker > (softc->sc_counts[CHET_MT] - 1)) {
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
softc->sc_picker = softc->sc_firsts[CHET_MT] + new_picker;
|
|
break;
|
|
}
|
|
case CHIOGPARAMS:
|
|
{
|
|
struct changer_params *cp = (struct changer_params *)addr;
|
|
|
|
cp->cp_npickers = softc->sc_counts[CHET_MT];
|
|
cp->cp_nslots = softc->sc_counts[CHET_ST];
|
|
cp->cp_nportals = softc->sc_counts[CHET_IE];
|
|
cp->cp_ndrives = softc->sc_counts[CHET_DT];
|
|
break;
|
|
}
|
|
case CHIOIELEM:
|
|
error = chielem(periph, *(unsigned int *)addr);
|
|
break;
|
|
|
|
case CHIOGSTATUS:
|
|
{
|
|
error = chgetelemstatus(periph,
|
|
(struct changer_element_status_request *) addr);
|
|
break;
|
|
}
|
|
|
|
case CHIOSETVOLTAG:
|
|
{
|
|
error = chsetvoltag(periph,
|
|
(struct changer_set_voltag_request *) addr);
|
|
break;
|
|
}
|
|
|
|
/* Implement prevent/allow? */
|
|
|
|
default:
|
|
error = cam_periph_ioctl(periph, cmd, addr, cherror);
|
|
break;
|
|
}
|
|
|
|
cam_periph_unlock(periph);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
chmove(struct cam_periph *periph, struct changer_move *cm)
|
|
{
|
|
struct ch_softc *softc;
|
|
u_int16_t fromelem, toelem;
|
|
union ccb *ccb;
|
|
int error;
|
|
|
|
error = 0;
|
|
softc = (struct ch_softc *)periph->softc;
|
|
|
|
/*
|
|
* Check arguments.
|
|
*/
|
|
if ((cm->cm_fromtype > CHET_DT) || (cm->cm_totype > CHET_DT))
|
|
return (EINVAL);
|
|
if ((cm->cm_fromunit > (softc->sc_counts[cm->cm_fromtype] - 1)) ||
|
|
(cm->cm_tounit > (softc->sc_counts[cm->cm_totype] - 1)))
|
|
return (ENODEV);
|
|
|
|
/*
|
|
* Check the request against the changer's capabilities.
|
|
*/
|
|
if ((softc->sc_movemask[cm->cm_fromtype] & (1 << cm->cm_totype)) == 0)
|
|
return (ENODEV);
|
|
|
|
/*
|
|
* Calculate the source and destination elements.
|
|
*/
|
|
fromelem = softc->sc_firsts[cm->cm_fromtype] + cm->cm_fromunit;
|
|
toelem = softc->sc_firsts[cm->cm_totype] + cm->cm_tounit;
|
|
|
|
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
|
|
|
|
scsi_move_medium(&ccb->csio,
|
|
/* retries */ 1,
|
|
/* cbfcnp */ chdone,
|
|
/* tag_action */ MSG_SIMPLE_Q_TAG,
|
|
/* tea */ softc->sc_picker,
|
|
/* src */ fromelem,
|
|
/* dst */ toelem,
|
|
/* invert */ (cm->cm_flags & CM_INVERT) ? TRUE : FALSE,
|
|
/* sense_len */ SSD_FULL_SIZE,
|
|
/* timeout */ CH_TIMEOUT_MOVE_MEDIUM);
|
|
|
|
error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO,
|
|
/*sense_flags*/ SF_RETRY_UA,
|
|
softc->device_stats);
|
|
|
|
xpt_release_ccb(ccb);
|
|
|
|
return(error);
|
|
}
|
|
|
|
static int
|
|
chexchange(struct cam_periph *periph, struct changer_exchange *ce)
|
|
{
|
|
struct ch_softc *softc;
|
|
u_int16_t src, dst1, dst2;
|
|
union ccb *ccb;
|
|
int error;
|
|
|
|
error = 0;
|
|
softc = (struct ch_softc *)periph->softc;
|
|
/*
|
|
* Check arguments.
|
|
*/
|
|
if ((ce->ce_srctype > CHET_DT) || (ce->ce_fdsttype > CHET_DT) ||
|
|
(ce->ce_sdsttype > CHET_DT))
|
|
return (EINVAL);
|
|
if ((ce->ce_srcunit > (softc->sc_counts[ce->ce_srctype] - 1)) ||
|
|
(ce->ce_fdstunit > (softc->sc_counts[ce->ce_fdsttype] - 1)) ||
|
|
(ce->ce_sdstunit > (softc->sc_counts[ce->ce_sdsttype] - 1)))
|
|
return (ENODEV);
|
|
|
|
/*
|
|
* Check the request against the changer's capabilities.
|
|
*/
|
|
if (((softc->sc_exchangemask[ce->ce_srctype] &
|
|
(1 << ce->ce_fdsttype)) == 0) ||
|
|
((softc->sc_exchangemask[ce->ce_fdsttype] &
|
|
(1 << ce->ce_sdsttype)) == 0))
|
|
return (ENODEV);
|
|
|
|
/*
|
|
* Calculate the source and destination elements.
|
|
*/
|
|
src = softc->sc_firsts[ce->ce_srctype] + ce->ce_srcunit;
|
|
dst1 = softc->sc_firsts[ce->ce_fdsttype] + ce->ce_fdstunit;
|
|
dst2 = softc->sc_firsts[ce->ce_sdsttype] + ce->ce_sdstunit;
|
|
|
|
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
|
|
|
|
scsi_exchange_medium(&ccb->csio,
|
|
/* retries */ 1,
|
|
/* cbfcnp */ chdone,
|
|
/* tag_action */ MSG_SIMPLE_Q_TAG,
|
|
/* tea */ softc->sc_picker,
|
|
/* src */ src,
|
|
/* dst1 */ dst1,
|
|
/* dst2 */ dst2,
|
|
/* invert1 */ (ce->ce_flags & CE_INVERT1) ?
|
|
TRUE : FALSE,
|
|
/* invert2 */ (ce->ce_flags & CE_INVERT2) ?
|
|
TRUE : FALSE,
|
|
/* sense_len */ SSD_FULL_SIZE,
|
|
/* timeout */ CH_TIMEOUT_EXCHANGE_MEDIUM);
|
|
|
|
error = cam_periph_runccb(ccb, cherror, /*cam_flags*/CAM_RETRY_SELTO,
|
|
/*sense_flags*/ SF_RETRY_UA,
|
|
softc->device_stats);
|
|
|
|
xpt_release_ccb(ccb);
|
|
|
|
return(error);
|
|
}
|
|
|
|
static int
|
|
chposition(struct cam_periph *periph, struct changer_position *cp)
|
|
{
|
|
struct ch_softc *softc;
|
|
u_int16_t dst;
|
|
union ccb *ccb;
|
|
int error;
|
|
|
|
error = 0;
|
|
softc = (struct ch_softc *)periph->softc;
|
|
|
|
/*
|
|
* Check arguments.
|
|
*/
|
|
if (cp->cp_type > CHET_DT)
|
|
return (EINVAL);
|
|
if (cp->cp_unit > (softc->sc_counts[cp->cp_type] - 1))
|
|
return (ENODEV);
|
|
|
|
/*
|
|
* Calculate the destination element.
|
|
*/
|
|
dst = softc->sc_firsts[cp->cp_type] + cp->cp_unit;
|
|
|
|
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
|
|
|
|
scsi_position_to_element(&ccb->csio,
|
|
/* retries */ 1,
|
|
/* cbfcnp */ chdone,
|
|
/* tag_action */ MSG_SIMPLE_Q_TAG,
|
|
/* tea */ softc->sc_picker,
|
|
/* dst */ dst,
|
|
/* invert */ (cp->cp_flags & CP_INVERT) ?
|
|
TRUE : FALSE,
|
|
/* sense_len */ SSD_FULL_SIZE,
|
|
/* timeout */ CH_TIMEOUT_POSITION_TO_ELEMENT);
|
|
|
|
error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
|
|
/*sense_flags*/ SF_RETRY_UA,
|
|
softc->device_stats);
|
|
|
|
xpt_release_ccb(ccb);
|
|
|
|
return(error);
|
|
}
|
|
|
|
/*
|
|
* Copy a volume tag to a volume_tag struct, converting SCSI byte order
|
|
* to host native byte order in the volume serial number. The volume
|
|
* label as returned by the changer is transferred to user mode as
|
|
* nul-terminated string. Volume labels are truncated at the first
|
|
* space, as suggested by SCSI-2.
|
|
*/
|
|
static void
|
|
copy_voltag(struct changer_voltag *uvoltag, struct volume_tag *voltag)
|
|
{
|
|
int i;
|
|
for (i=0; i<CH_VOLTAG_MAXLEN; i++) {
|
|
char c = voltag->vif[i];
|
|
if (c && c != ' ')
|
|
uvoltag->cv_volid[i] = c;
|
|
else
|
|
break;
|
|
}
|
|
uvoltag->cv_serial = scsi_2btoul(voltag->vsn);
|
|
}
|
|
|
|
/*
|
|
* Copy an an element status descriptor to a user-mode
|
|
* changer_element_status structure.
|
|
*/
|
|
|
|
static void
|
|
copy_element_status(struct ch_softc *softc,
|
|
u_int16_t flags,
|
|
struct read_element_status_descriptor *desc,
|
|
struct changer_element_status *ces)
|
|
{
|
|
u_int16_t eaddr = scsi_2btoul(desc->eaddr);
|
|
u_int16_t et;
|
|
|
|
ces->ces_int_addr = eaddr;
|
|
/* set up logical address in element status */
|
|
for (et = CHET_MT; et <= CHET_DT; et++) {
|
|
if ((softc->sc_firsts[et] <= eaddr)
|
|
&& ((softc->sc_firsts[et] + softc->sc_counts[et])
|
|
> eaddr)) {
|
|
ces->ces_addr = eaddr - softc->sc_firsts[et];
|
|
ces->ces_type = et;
|
|
break;
|
|
}
|
|
}
|
|
|
|
ces->ces_flags = desc->flags1;
|
|
|
|
ces->ces_sensecode = desc->sense_code;
|
|
ces->ces_sensequal = desc->sense_qual;
|
|
|
|
if (desc->flags2 & READ_ELEMENT_STATUS_INVERT)
|
|
ces->ces_flags |= CES_INVERT;
|
|
|
|
if (desc->flags2 & READ_ELEMENT_STATUS_SVALID) {
|
|
|
|
eaddr = scsi_2btoul(desc->ssea);
|
|
|
|
/* convert source address to logical format */
|
|
for (et = CHET_MT; et <= CHET_DT; et++) {
|
|
if ((softc->sc_firsts[et] <= eaddr)
|
|
&& ((softc->sc_firsts[et] + softc->sc_counts[et])
|
|
> eaddr)) {
|
|
ces->ces_source_addr =
|
|
eaddr - softc->sc_firsts[et];
|
|
ces->ces_source_type = et;
|
|
ces->ces_flags |= CES_SOURCE_VALID;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!(ces->ces_flags & CES_SOURCE_VALID))
|
|
printf("ch: warning: could not map element source "
|
|
"address %ud to a valid element type\n",
|
|
eaddr);
|
|
}
|
|
|
|
|
|
if (flags & READ_ELEMENT_STATUS_PVOLTAG)
|
|
copy_voltag(&(ces->ces_pvoltag), &(desc->pvoltag));
|
|
if (flags & READ_ELEMENT_STATUS_AVOLTAG)
|
|
copy_voltag(&(ces->ces_avoltag), &(desc->avoltag));
|
|
|
|
if (desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_IDVALID) {
|
|
ces->ces_flags |= CES_SCSIID_VALID;
|
|
ces->ces_scsi_id = desc->dt_scsi_addr;
|
|
}
|
|
|
|
if (desc->dt_scsi_addr & READ_ELEMENT_STATUS_DT_LUVALID) {
|
|
ces->ces_flags |= CES_LUN_VALID;
|
|
ces->ces_scsi_lun =
|
|
desc->dt_scsi_flags & READ_ELEMENT_STATUS_DT_LUNMASK;
|
|
}
|
|
}
|
|
|
|
static int
|
|
chgetelemstatus(struct cam_periph *periph,
|
|
struct changer_element_status_request *cesr)
|
|
{
|
|
struct read_element_status_header *st_hdr;
|
|
struct read_element_status_page_header *pg_hdr;
|
|
struct read_element_status_descriptor *desc;
|
|
caddr_t data = NULL;
|
|
size_t size, desclen;
|
|
int avail, i, error = 0;
|
|
struct changer_element_status *user_data = NULL;
|
|
struct ch_softc *softc;
|
|
union ccb *ccb;
|
|
int chet = cesr->cesr_element_type;
|
|
int want_voltags = (cesr->cesr_flags & CESR_VOLTAGS) ? 1 : 0;
|
|
|
|
softc = (struct ch_softc *)periph->softc;
|
|
|
|
/* perform argument checking */
|
|
|
|
/*
|
|
* Perform a range check on the cesr_element_{base,count}
|
|
* request argument fields.
|
|
*/
|
|
if ((softc->sc_counts[chet] - cesr->cesr_element_base) <= 0
|
|
|| (cesr->cesr_element_base + cesr->cesr_element_count)
|
|
> softc->sc_counts[chet])
|
|
return (EINVAL);
|
|
|
|
/*
|
|
* Request one descriptor for the given element type. This
|
|
* is used to determine the size of the descriptor so that
|
|
* we can allocate enough storage for all of them. We assume
|
|
* that the first one can fit into 1k.
|
|
*/
|
|
cam_periph_unlock(periph);
|
|
data = (caddr_t)malloc(1024, M_DEVBUF, M_WAITOK);
|
|
|
|
cam_periph_lock(periph);
|
|
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
|
|
|
|
scsi_read_element_status(&ccb->csio,
|
|
/* retries */ 1,
|
|
/* cbfcnp */ chdone,
|
|
/* tag_action */ MSG_SIMPLE_Q_TAG,
|
|
/* voltag */ want_voltags,
|
|
/* sea */ softc->sc_firsts[chet],
|
|
/* count */ 1,
|
|
/* data_ptr */ data,
|
|
/* dxfer_len */ 1024,
|
|
/* sense_len */ SSD_FULL_SIZE,
|
|
/* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS);
|
|
|
|
error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
|
|
/*sense_flags*/ SF_RETRY_UA,
|
|
softc->device_stats);
|
|
|
|
if (error)
|
|
goto done;
|
|
cam_periph_unlock(periph);
|
|
|
|
st_hdr = (struct read_element_status_header *)data;
|
|
pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr +
|
|
sizeof(struct read_element_status_header));
|
|
desclen = scsi_2btoul(pg_hdr->edl);
|
|
|
|
size = sizeof(struct read_element_status_header) +
|
|
sizeof(struct read_element_status_page_header) +
|
|
(desclen * cesr->cesr_element_count);
|
|
|
|
/*
|
|
* Reallocate storage for descriptors and get them from the
|
|
* device.
|
|
*/
|
|
free(data, M_DEVBUF);
|
|
data = (caddr_t)malloc(size, M_DEVBUF, M_WAITOK);
|
|
|
|
cam_periph_lock(periph);
|
|
scsi_read_element_status(&ccb->csio,
|
|
/* retries */ 1,
|
|
/* cbfcnp */ chdone,
|
|
/* tag_action */ MSG_SIMPLE_Q_TAG,
|
|
/* voltag */ want_voltags,
|
|
/* sea */ softc->sc_firsts[chet]
|
|
+ cesr->cesr_element_base,
|
|
/* count */ cesr->cesr_element_count,
|
|
/* data_ptr */ data,
|
|
/* dxfer_len */ size,
|
|
/* sense_len */ SSD_FULL_SIZE,
|
|
/* timeout */ CH_TIMEOUT_READ_ELEMENT_STATUS);
|
|
|
|
error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
|
|
/*sense_flags*/ SF_RETRY_UA,
|
|
softc->device_stats);
|
|
|
|
if (error)
|
|
goto done;
|
|
cam_periph_unlock(periph);
|
|
|
|
/*
|
|
* Fill in the user status array.
|
|
*/
|
|
st_hdr = (struct read_element_status_header *)data;
|
|
pg_hdr = (struct read_element_status_page_header *)((uintptr_t)st_hdr +
|
|
sizeof(struct read_element_status_header));
|
|
avail = scsi_2btoul(st_hdr->count);
|
|
|
|
if (avail != cesr->cesr_element_count) {
|
|
xpt_print(periph->path,
|
|
"warning, READ ELEMENT STATUS avail != count\n");
|
|
}
|
|
|
|
user_data = (struct changer_element_status *)
|
|
malloc(avail * sizeof(struct changer_element_status),
|
|
M_DEVBUF, M_WAITOK | M_ZERO);
|
|
|
|
desc = (struct read_element_status_descriptor *)((uintptr_t)data +
|
|
sizeof(struct read_element_status_header) +
|
|
sizeof(struct read_element_status_page_header));
|
|
/*
|
|
* Set up the individual element status structures
|
|
*/
|
|
for (i = 0; i < avail; ++i) {
|
|
struct changer_element_status *ces = &(user_data[i]);
|
|
|
|
copy_element_status(softc, pg_hdr->flags, desc, ces);
|
|
|
|
desc = (struct read_element_status_descriptor *)
|
|
((uintptr_t)desc + desclen);
|
|
}
|
|
|
|
/* Copy element status structures out to userspace. */
|
|
error = copyout(user_data,
|
|
cesr->cesr_element_status,
|
|
avail * sizeof(struct changer_element_status));
|
|
cam_periph_lock(periph);
|
|
|
|
done:
|
|
xpt_release_ccb(ccb);
|
|
|
|
if (data != NULL)
|
|
free(data, M_DEVBUF);
|
|
if (user_data != NULL)
|
|
free(user_data, M_DEVBUF);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
chielem(struct cam_periph *periph,
|
|
unsigned int timeout)
|
|
{
|
|
union ccb *ccb;
|
|
struct ch_softc *softc;
|
|
int error;
|
|
|
|
if (!timeout) {
|
|
timeout = CH_TIMEOUT_INITIALIZE_ELEMENT_STATUS;
|
|
} else {
|
|
timeout *= 1000;
|
|
}
|
|
|
|
error = 0;
|
|
softc = (struct ch_softc *)periph->softc;
|
|
|
|
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
|
|
|
|
scsi_initialize_element_status(&ccb->csio,
|
|
/* retries */ 1,
|
|
/* cbfcnp */ chdone,
|
|
/* tag_action */ MSG_SIMPLE_Q_TAG,
|
|
/* sense_len */ SSD_FULL_SIZE,
|
|
/* timeout */ timeout);
|
|
|
|
error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
|
|
/*sense_flags*/ SF_RETRY_UA,
|
|
softc->device_stats);
|
|
|
|
xpt_release_ccb(ccb);
|
|
|
|
return(error);
|
|
}
|
|
|
|
static int
|
|
chsetvoltag(struct cam_periph *periph,
|
|
struct changer_set_voltag_request *csvr)
|
|
{
|
|
union ccb *ccb;
|
|
struct ch_softc *softc;
|
|
u_int16_t ea;
|
|
u_int8_t sac;
|
|
struct scsi_send_volume_tag_parameters ssvtp;
|
|
int error;
|
|
int i;
|
|
|
|
error = 0;
|
|
softc = (struct ch_softc *)periph->softc;
|
|
|
|
bzero(&ssvtp, sizeof(ssvtp));
|
|
for (i=0; i<sizeof(ssvtp.vitf); i++) {
|
|
ssvtp.vitf[i] = ' ';
|
|
}
|
|
|
|
/*
|
|
* Check arguments.
|
|
*/
|
|
if (csvr->csvr_type > CHET_DT)
|
|
return EINVAL;
|
|
if (csvr->csvr_addr > (softc->sc_counts[csvr->csvr_type] - 1))
|
|
return ENODEV;
|
|
|
|
ea = softc->sc_firsts[csvr->csvr_type] + csvr->csvr_addr;
|
|
|
|
if (csvr->csvr_flags & CSVR_ALTERNATE) {
|
|
switch (csvr->csvr_flags & CSVR_MODE_MASK) {
|
|
case CSVR_MODE_SET:
|
|
sac = SEND_VOLUME_TAG_ASSERT_ALTERNATE;
|
|
break;
|
|
case CSVR_MODE_REPLACE:
|
|
sac = SEND_VOLUME_TAG_REPLACE_ALTERNATE;
|
|
break;
|
|
case CSVR_MODE_CLEAR:
|
|
sac = SEND_VOLUME_TAG_UNDEFINED_ALTERNATE;
|
|
break;
|
|
default:
|
|
error = EINVAL;
|
|
goto out;
|
|
}
|
|
} else {
|
|
switch (csvr->csvr_flags & CSVR_MODE_MASK) {
|
|
case CSVR_MODE_SET:
|
|
sac = SEND_VOLUME_TAG_ASSERT_PRIMARY;
|
|
break;
|
|
case CSVR_MODE_REPLACE:
|
|
sac = SEND_VOLUME_TAG_REPLACE_PRIMARY;
|
|
break;
|
|
case CSVR_MODE_CLEAR:
|
|
sac = SEND_VOLUME_TAG_UNDEFINED_PRIMARY;
|
|
break;
|
|
default:
|
|
error = EINVAL;
|
|
goto out;
|
|
}
|
|
}
|
|
|
|
memcpy(ssvtp.vitf, csvr->csvr_voltag.cv_volid,
|
|
min(strlen(csvr->csvr_voltag.cv_volid), sizeof(ssvtp.vitf)));
|
|
scsi_ulto2b(csvr->csvr_voltag.cv_serial, ssvtp.minvsn);
|
|
|
|
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
|
|
|
|
scsi_send_volume_tag(&ccb->csio,
|
|
/* retries */ 1,
|
|
/* cbfcnp */ chdone,
|
|
/* tag_action */ MSG_SIMPLE_Q_TAG,
|
|
/* element_address */ ea,
|
|
/* send_action_code */ sac,
|
|
/* parameters */ &ssvtp,
|
|
/* sense_len */ SSD_FULL_SIZE,
|
|
/* timeout */ CH_TIMEOUT_SEND_VOLTAG);
|
|
|
|
error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
|
|
/*sense_flags*/ SF_RETRY_UA,
|
|
softc->device_stats);
|
|
|
|
xpt_release_ccb(ccb);
|
|
|
|
out:
|
|
return error;
|
|
}
|
|
|
|
static int
|
|
chgetparams(struct cam_periph *periph)
|
|
{
|
|
union ccb *ccb;
|
|
struct ch_softc *softc;
|
|
void *mode_buffer;
|
|
int mode_buffer_len;
|
|
struct page_element_address_assignment *ea;
|
|
struct page_device_capabilities *cap;
|
|
int error, from, dbd;
|
|
u_int8_t *moves, *exchanges;
|
|
|
|
error = 0;
|
|
|
|
softc = (struct ch_softc *)periph->softc;
|
|
|
|
ccb = cam_periph_getccb(periph, CAM_PRIORITY_NORMAL);
|
|
|
|
/*
|
|
* The scsi_mode_sense_data structure is just a convenience
|
|
* structure that allows us to easily calculate the worst-case
|
|
* storage size of the mode sense buffer.
|
|
*/
|
|
mode_buffer_len = sizeof(struct scsi_mode_sense_data);
|
|
|
|
mode_buffer = malloc(mode_buffer_len, M_SCSICH, M_NOWAIT);
|
|
|
|
if (mode_buffer == NULL) {
|
|
printf("chgetparams: couldn't malloc mode sense data\n");
|
|
return(ENOSPC);
|
|
}
|
|
|
|
bzero(mode_buffer, mode_buffer_len);
|
|
|
|
if (softc->quirks & CH_Q_NO_DBD)
|
|
dbd = FALSE;
|
|
else
|
|
dbd = TRUE;
|
|
|
|
/*
|
|
* Get the element address assignment page.
|
|
*/
|
|
scsi_mode_sense(&ccb->csio,
|
|
/* retries */ 1,
|
|
/* cbfcnp */ chdone,
|
|
/* tag_action */ MSG_SIMPLE_Q_TAG,
|
|
/* dbd */ dbd,
|
|
/* page_code */ SMS_PAGE_CTRL_CURRENT,
|
|
/* page */ CH_ELEMENT_ADDR_ASSIGN_PAGE,
|
|
/* param_buf */ (u_int8_t *)mode_buffer,
|
|
/* param_len */ mode_buffer_len,
|
|
/* sense_len */ SSD_FULL_SIZE,
|
|
/* timeout */ CH_TIMEOUT_MODE_SENSE);
|
|
|
|
error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
|
|
/* sense_flags */ SF_RETRY_UA|SF_NO_PRINT,
|
|
softc->device_stats);
|
|
|
|
if (error) {
|
|
if (dbd) {
|
|
struct scsi_mode_sense_6 *sms;
|
|
|
|
sms = (struct scsi_mode_sense_6 *)
|
|
ccb->csio.cdb_io.cdb_bytes;
|
|
|
|
sms->byte2 &= ~SMS_DBD;
|
|
error = cam_periph_runccb(ccb, cherror,
|
|
/*cam_flags*/ CAM_RETRY_SELTO,
|
|
/*sense_flags*/ SF_RETRY_UA,
|
|
softc->device_stats);
|
|
} else {
|
|
/*
|
|
* Since we disabled sense printing above, print
|
|
* out the sense here since we got an error.
|
|
*/
|
|
scsi_sense_print(&ccb->csio);
|
|
}
|
|
|
|
if (error) {
|
|
xpt_print(periph->path,
|
|
"chgetparams: error getting element "
|
|
"address page\n");
|
|
xpt_release_ccb(ccb);
|
|
free(mode_buffer, M_SCSICH);
|
|
return(error);
|
|
}
|
|
}
|
|
|
|
ea = (struct page_element_address_assignment *)
|
|
find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer);
|
|
|
|
softc->sc_firsts[CHET_MT] = scsi_2btoul(ea->mtea);
|
|
softc->sc_counts[CHET_MT] = scsi_2btoul(ea->nmte);
|
|
softc->sc_firsts[CHET_ST] = scsi_2btoul(ea->fsea);
|
|
softc->sc_counts[CHET_ST] = scsi_2btoul(ea->nse);
|
|
softc->sc_firsts[CHET_IE] = scsi_2btoul(ea->fieea);
|
|
softc->sc_counts[CHET_IE] = scsi_2btoul(ea->niee);
|
|
softc->sc_firsts[CHET_DT] = scsi_2btoul(ea->fdtea);
|
|
softc->sc_counts[CHET_DT] = scsi_2btoul(ea->ndte);
|
|
|
|
bzero(mode_buffer, mode_buffer_len);
|
|
|
|
/*
|
|
* Now get the device capabilities page.
|
|
*/
|
|
scsi_mode_sense(&ccb->csio,
|
|
/* retries */ 1,
|
|
/* cbfcnp */ chdone,
|
|
/* tag_action */ MSG_SIMPLE_Q_TAG,
|
|
/* dbd */ dbd,
|
|
/* page_code */ SMS_PAGE_CTRL_CURRENT,
|
|
/* page */ CH_DEVICE_CAP_PAGE,
|
|
/* param_buf */ (u_int8_t *)mode_buffer,
|
|
/* param_len */ mode_buffer_len,
|
|
/* sense_len */ SSD_FULL_SIZE,
|
|
/* timeout */ CH_TIMEOUT_MODE_SENSE);
|
|
|
|
error = cam_periph_runccb(ccb, cherror, /*cam_flags*/ CAM_RETRY_SELTO,
|
|
/* sense_flags */ SF_RETRY_UA | SF_NO_PRINT,
|
|
softc->device_stats);
|
|
|
|
if (error) {
|
|
if (dbd) {
|
|
struct scsi_mode_sense_6 *sms;
|
|
|
|
sms = (struct scsi_mode_sense_6 *)
|
|
ccb->csio.cdb_io.cdb_bytes;
|
|
|
|
sms->byte2 &= ~SMS_DBD;
|
|
error = cam_periph_runccb(ccb, cherror,
|
|
/*cam_flags*/ CAM_RETRY_SELTO,
|
|
/*sense_flags*/ SF_RETRY_UA,
|
|
softc->device_stats);
|
|
} else {
|
|
/*
|
|
* Since we disabled sense printing above, print
|
|
* out the sense here since we got an error.
|
|
*/
|
|
scsi_sense_print(&ccb->csio);
|
|
}
|
|
|
|
if (error) {
|
|
xpt_print(periph->path,
|
|
"chgetparams: error getting device "
|
|
"capabilities page\n");
|
|
xpt_release_ccb(ccb);
|
|
free(mode_buffer, M_SCSICH);
|
|
return(error);
|
|
}
|
|
}
|
|
|
|
xpt_release_ccb(ccb);
|
|
|
|
cap = (struct page_device_capabilities *)
|
|
find_mode_page_6((struct scsi_mode_header_6 *)mode_buffer);
|
|
|
|
bzero(softc->sc_movemask, sizeof(softc->sc_movemask));
|
|
bzero(softc->sc_exchangemask, sizeof(softc->sc_exchangemask));
|
|
moves = cap->move_from;
|
|
exchanges = cap->exchange_with;
|
|
for (from = CHET_MT; from <= CHET_MAX; ++from) {
|
|
softc->sc_movemask[from] = moves[from];
|
|
softc->sc_exchangemask[from] = exchanges[from];
|
|
}
|
|
|
|
free(mode_buffer, M_SCSICH);
|
|
|
|
return(error);
|
|
}
|
|
|
|
void
|
|
scsi_move_medium(struct ccb_scsiio *csio, u_int32_t retries,
|
|
void (*cbfcnp)(struct cam_periph *, union ccb *),
|
|
u_int8_t tag_action, u_int32_t tea, u_int32_t src,
|
|
u_int32_t dst, int invert, u_int8_t sense_len,
|
|
u_int32_t timeout)
|
|
{
|
|
struct scsi_move_medium *scsi_cmd;
|
|
|
|
scsi_cmd = (struct scsi_move_medium *)&csio->cdb_io.cdb_bytes;
|
|
bzero(scsi_cmd, sizeof(*scsi_cmd));
|
|
|
|
scsi_cmd->opcode = MOVE_MEDIUM;
|
|
|
|
scsi_ulto2b(tea, scsi_cmd->tea);
|
|
scsi_ulto2b(src, scsi_cmd->src);
|
|
scsi_ulto2b(dst, scsi_cmd->dst);
|
|
|
|
if (invert)
|
|
scsi_cmd->invert |= MOVE_MEDIUM_INVERT;
|
|
|
|
cam_fill_csio(csio,
|
|
retries,
|
|
cbfcnp,
|
|
/*flags*/ CAM_DIR_NONE,
|
|
tag_action,
|
|
/*data_ptr*/ NULL,
|
|
/*dxfer_len*/ 0,
|
|
sense_len,
|
|
sizeof(*scsi_cmd),
|
|
timeout);
|
|
}
|
|
|
|
void
|
|
scsi_exchange_medium(struct ccb_scsiio *csio, u_int32_t retries,
|
|
void (*cbfcnp)(struct cam_periph *, union ccb *),
|
|
u_int8_t tag_action, u_int32_t tea, u_int32_t src,
|
|
u_int32_t dst1, u_int32_t dst2, int invert1,
|
|
int invert2, u_int8_t sense_len, u_int32_t timeout)
|
|
{
|
|
struct scsi_exchange_medium *scsi_cmd;
|
|
|
|
scsi_cmd = (struct scsi_exchange_medium *)&csio->cdb_io.cdb_bytes;
|
|
bzero(scsi_cmd, sizeof(*scsi_cmd));
|
|
|
|
scsi_cmd->opcode = EXCHANGE_MEDIUM;
|
|
|
|
scsi_ulto2b(tea, scsi_cmd->tea);
|
|
scsi_ulto2b(src, scsi_cmd->src);
|
|
scsi_ulto2b(dst1, scsi_cmd->fdst);
|
|
scsi_ulto2b(dst2, scsi_cmd->sdst);
|
|
|
|
if (invert1)
|
|
scsi_cmd->invert |= EXCHANGE_MEDIUM_INV1;
|
|
|
|
if (invert2)
|
|
scsi_cmd->invert |= EXCHANGE_MEDIUM_INV2;
|
|
|
|
cam_fill_csio(csio,
|
|
retries,
|
|
cbfcnp,
|
|
/*flags*/ CAM_DIR_NONE,
|
|
tag_action,
|
|
/*data_ptr*/ NULL,
|
|
/*dxfer_len*/ 0,
|
|
sense_len,
|
|
sizeof(*scsi_cmd),
|
|
timeout);
|
|
}
|
|
|
|
void
|
|
scsi_position_to_element(struct ccb_scsiio *csio, u_int32_t retries,
|
|
void (*cbfcnp)(struct cam_periph *, union ccb *),
|
|
u_int8_t tag_action, u_int32_t tea, u_int32_t dst,
|
|
int invert, u_int8_t sense_len, u_int32_t timeout)
|
|
{
|
|
struct scsi_position_to_element *scsi_cmd;
|
|
|
|
scsi_cmd = (struct scsi_position_to_element *)&csio->cdb_io.cdb_bytes;
|
|
bzero(scsi_cmd, sizeof(*scsi_cmd));
|
|
|
|
scsi_cmd->opcode = POSITION_TO_ELEMENT;
|
|
|
|
scsi_ulto2b(tea, scsi_cmd->tea);
|
|
scsi_ulto2b(dst, scsi_cmd->dst);
|
|
|
|
if (invert)
|
|
scsi_cmd->invert |= POSITION_TO_ELEMENT_INVERT;
|
|
|
|
cam_fill_csio(csio,
|
|
retries,
|
|
cbfcnp,
|
|
/*flags*/ CAM_DIR_NONE,
|
|
tag_action,
|
|
/*data_ptr*/ NULL,
|
|
/*dxfer_len*/ 0,
|
|
sense_len,
|
|
sizeof(*scsi_cmd),
|
|
timeout);
|
|
}
|
|
|
|
void
|
|
scsi_read_element_status(struct ccb_scsiio *csio, u_int32_t retries,
|
|
void (*cbfcnp)(struct cam_periph *, union ccb *),
|
|
u_int8_t tag_action, int voltag, u_int32_t sea,
|
|
u_int32_t count, u_int8_t *data_ptr,
|
|
u_int32_t dxfer_len, u_int8_t sense_len,
|
|
u_int32_t timeout)
|
|
{
|
|
struct scsi_read_element_status *scsi_cmd;
|
|
|
|
scsi_cmd = (struct scsi_read_element_status *)&csio->cdb_io.cdb_bytes;
|
|
bzero(scsi_cmd, sizeof(*scsi_cmd));
|
|
|
|
scsi_cmd->opcode = READ_ELEMENT_STATUS;
|
|
|
|
scsi_ulto2b(sea, scsi_cmd->sea);
|
|
scsi_ulto2b(count, scsi_cmd->count);
|
|
scsi_ulto3b(dxfer_len, scsi_cmd->len);
|
|
|
|
if (voltag)
|
|
scsi_cmd->byte2 |= READ_ELEMENT_STATUS_VOLTAG;
|
|
|
|
cam_fill_csio(csio,
|
|
retries,
|
|
cbfcnp,
|
|
/*flags*/ CAM_DIR_IN,
|
|
tag_action,
|
|
data_ptr,
|
|
dxfer_len,
|
|
sense_len,
|
|
sizeof(*scsi_cmd),
|
|
timeout);
|
|
}
|
|
|
|
void
|
|
scsi_initialize_element_status(struct ccb_scsiio *csio, u_int32_t retries,
|
|
void (*cbfcnp)(struct cam_periph *, union ccb *),
|
|
u_int8_t tag_action, u_int8_t sense_len,
|
|
u_int32_t timeout)
|
|
{
|
|
struct scsi_initialize_element_status *scsi_cmd;
|
|
|
|
scsi_cmd = (struct scsi_initialize_element_status *)
|
|
&csio->cdb_io.cdb_bytes;
|
|
bzero(scsi_cmd, sizeof(*scsi_cmd));
|
|
|
|
scsi_cmd->opcode = INITIALIZE_ELEMENT_STATUS;
|
|
|
|
cam_fill_csio(csio,
|
|
retries,
|
|
cbfcnp,
|
|
/*flags*/ CAM_DIR_NONE,
|
|
tag_action,
|
|
/* data_ptr */ NULL,
|
|
/* dxfer_len */ 0,
|
|
sense_len,
|
|
sizeof(*scsi_cmd),
|
|
timeout);
|
|
}
|
|
|
|
void
|
|
scsi_send_volume_tag(struct ccb_scsiio *csio, u_int32_t retries,
|
|
void (*cbfcnp)(struct cam_periph *, union ccb *),
|
|
u_int8_t tag_action,
|
|
u_int16_t element_address,
|
|
u_int8_t send_action_code,
|
|
struct scsi_send_volume_tag_parameters *parameters,
|
|
u_int8_t sense_len, u_int32_t timeout)
|
|
{
|
|
struct scsi_send_volume_tag *scsi_cmd;
|
|
|
|
scsi_cmd = (struct scsi_send_volume_tag *) &csio->cdb_io.cdb_bytes;
|
|
bzero(scsi_cmd, sizeof(*scsi_cmd));
|
|
|
|
scsi_cmd->opcode = SEND_VOLUME_TAG;
|
|
scsi_ulto2b(element_address, scsi_cmd->ea);
|
|
scsi_cmd->sac = send_action_code;
|
|
scsi_ulto2b(sizeof(*parameters), scsi_cmd->pll);
|
|
|
|
cam_fill_csio(csio,
|
|
retries,
|
|
cbfcnp,
|
|
/*flags*/ CAM_DIR_OUT,
|
|
tag_action,
|
|
/* data_ptr */ (u_int8_t *) parameters,
|
|
sizeof(*parameters),
|
|
sense_len,
|
|
sizeof(*scsi_cmd),
|
|
timeout);
|
|
}
|