521440b299
real JBOD mode (SYS PD) would fail fairly reliably during I/O. Steal the mfi_disk.c check for this condition (indirectly) when establishing d_maxsize. Reviewed by: ambrisko@ MFC after: 4 weeks Sponsored by: Yahoo! Inc.
285 lines
7.6 KiB
C
285 lines
7.6 KiB
C
/*-
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* Copyright 1994-2009 The FreeBSD Project.
|
|
* All rights reserved.
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE FREEBSD PROJECT``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 FREEBSD PROJECT 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.
|
|
*
|
|
* The views and conclusions contained in the software and documentation
|
|
* are those of the authors and should not be interpreted as representing
|
|
* official policies,either expressed or implied, of the FreeBSD Project.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include "opt_mfi.h"
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/systm.h>
|
|
#include <sys/kernel.h>
|
|
#include <sys/selinfo.h>
|
|
#include <sys/module.h>
|
|
#include <sys/malloc.h>
|
|
#include <sys/sysctl.h>
|
|
#include <sys/uio.h>
|
|
|
|
#include <sys/bio.h>
|
|
#include <sys/bus.h>
|
|
#include <sys/conf.h>
|
|
#include <sys/disk.h>
|
|
#include <geom/geom_disk.h>
|
|
|
|
#include <vm/vm.h>
|
|
#include <vm/pmap.h>
|
|
|
|
#include <machine/md_var.h>
|
|
#include <machine/bus.h>
|
|
#include <sys/rman.h>
|
|
|
|
#include <dev/mfi/mfireg.h>
|
|
#include <dev/mfi/mfi_ioctl.h>
|
|
#include <dev/mfi/mfivar.h>
|
|
|
|
static int mfi_syspd_probe(device_t dev);
|
|
static int mfi_syspd_attach(device_t dev);
|
|
static int mfi_syspd_detach(device_t dev);
|
|
|
|
static disk_open_t mfi_syspd_open;
|
|
static disk_close_t mfi_syspd_close;
|
|
static disk_strategy_t mfi_syspd_strategy;
|
|
static dumper_t mfi_syspd_dump;
|
|
|
|
static devclass_t mfi_syspd_devclass;
|
|
|
|
static device_method_t mfi_syspd_methods[] = {
|
|
DEVMETHOD(device_probe, mfi_syspd_probe),
|
|
DEVMETHOD(device_attach, mfi_syspd_attach),
|
|
DEVMETHOD(device_detach, mfi_syspd_detach),
|
|
{ 0, 0 }
|
|
};
|
|
|
|
static driver_t mfi_syspd_driver = {
|
|
"mfisyspd",
|
|
mfi_syspd_methods,
|
|
sizeof(struct mfi_system_pd)
|
|
};
|
|
|
|
DRIVER_MODULE(mfisyspd, mfi, mfi_syspd_driver, mfi_syspd_devclass, 0, 0);
|
|
|
|
static int
|
|
mfi_syspd_probe(device_t dev)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
mfi_syspd_attach(device_t dev)
|
|
{
|
|
struct mfi_system_pd *sc;
|
|
struct mfi_pd_info *pd_info;
|
|
struct mfi_system_pending *syspd_pend;
|
|
uint64_t sectors;
|
|
uint32_t secsize;
|
|
|
|
sc = device_get_softc(dev);
|
|
pd_info = device_get_ivars(dev);
|
|
sc->pd_dev = dev;
|
|
sc->pd_id = pd_info->ref.v.device_id;
|
|
sc->pd_unit = device_get_unit(dev);
|
|
sc->pd_info = pd_info;
|
|
sc->pd_controller = device_get_softc(device_get_parent(dev));
|
|
sc->pd_flags = 0;
|
|
|
|
sectors = pd_info->raw_size;
|
|
secsize = MFI_SECTOR_LEN;
|
|
mtx_lock(&sc->pd_controller->mfi_io_lock);
|
|
TAILQ_INSERT_TAIL(&sc->pd_controller->mfi_syspd_tqh, sc, pd_link);
|
|
TAILQ_FOREACH(syspd_pend, &sc->pd_controller->mfi_syspd_pend_tqh,
|
|
pd_link) {
|
|
TAILQ_REMOVE(&sc->pd_controller->mfi_syspd_pend_tqh,
|
|
syspd_pend, pd_link);
|
|
free(syspd_pend, M_MFIBUF);
|
|
break;
|
|
}
|
|
mtx_unlock(&sc->pd_controller->mfi_io_lock);
|
|
device_printf(dev, "%juMB (%ju sectors) SYSPD volume (deviceid: %d)\n",
|
|
sectors / (1024 * 1024 / secsize), sectors, sc->pd_id);
|
|
sc->pd_disk = disk_alloc();
|
|
sc->pd_disk->d_drv1 = sc;
|
|
sc->pd_disk->d_maxsize = min(sc->pd_controller->mfi_max_io * secsize,
|
|
(sc->pd_controller->mfi_max_sge - 1) * PAGE_SIZE);
|
|
sc->pd_disk->d_name = "mfisyspd";
|
|
sc->pd_disk->d_open = mfi_syspd_open;
|
|
sc->pd_disk->d_close = mfi_syspd_close;
|
|
sc->pd_disk->d_strategy = mfi_syspd_strategy;
|
|
sc->pd_disk->d_dump = mfi_syspd_dump;
|
|
sc->pd_disk->d_unit = sc->pd_unit;
|
|
sc->pd_disk->d_sectorsize = secsize;
|
|
sc->pd_disk->d_mediasize = sectors * secsize;
|
|
if (sc->pd_disk->d_mediasize >= (1 * 1024 * 1024)) {
|
|
sc->pd_disk->d_fwheads = 255;
|
|
sc->pd_disk->d_fwsectors = 63;
|
|
} else {
|
|
sc->pd_disk->d_fwheads = 64;
|
|
sc->pd_disk->d_fwsectors = 32;
|
|
}
|
|
disk_create(sc->pd_disk, DISK_VERSION);
|
|
|
|
device_printf(dev, " SYSPD volume attached\n");
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
mfi_syspd_detach(device_t dev)
|
|
{
|
|
struct mfi_system_pd *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
device_printf(dev, "Detaching syspd\n");
|
|
mtx_lock(&sc->pd_controller->mfi_io_lock);
|
|
if (((sc->pd_disk->d_flags & DISKFLAG_OPEN) ||
|
|
(sc->pd_flags & MFI_DISK_FLAGS_OPEN)) &&
|
|
(sc->pd_controller->mfi_keep_deleted_volumes ||
|
|
sc->pd_controller->mfi_detaching)) {
|
|
mtx_unlock(&sc->pd_controller->mfi_io_lock);
|
|
device_printf(dev, "Cant detach syspd\n");
|
|
return (EBUSY);
|
|
}
|
|
mtx_unlock(&sc->pd_controller->mfi_io_lock);
|
|
|
|
disk_destroy(sc->pd_disk);
|
|
mtx_lock(&sc->pd_controller->mfi_io_lock);
|
|
TAILQ_REMOVE(&sc->pd_controller->mfi_syspd_tqh, sc, pd_link);
|
|
mtx_unlock(&sc->pd_controller->mfi_io_lock);
|
|
free(sc->pd_info, M_MFIBUF);
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
mfi_syspd_open(struct disk *dp)
|
|
{
|
|
struct mfi_system_pd *sc;
|
|
int error;
|
|
|
|
sc = dp->d_drv1;
|
|
mtx_lock(&sc->pd_controller->mfi_io_lock);
|
|
if (sc->pd_flags & MFI_DISK_FLAGS_DISABLED)
|
|
error = ENXIO;
|
|
else {
|
|
sc->pd_flags |= MFI_DISK_FLAGS_OPEN;
|
|
error = 0;
|
|
}
|
|
mtx_unlock(&sc->pd_controller->mfi_io_lock);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
mfi_syspd_close(struct disk *dp)
|
|
{
|
|
struct mfi_system_pd *sc;
|
|
|
|
sc = dp->d_drv1;
|
|
mtx_lock(&sc->pd_controller->mfi_io_lock);
|
|
sc->pd_flags &= ~MFI_DISK_FLAGS_OPEN;
|
|
mtx_unlock(&sc->pd_controller->mfi_io_lock);
|
|
|
|
return (0);
|
|
}
|
|
|
|
int
|
|
mfi_syspd_disable(struct mfi_system_pd *sc)
|
|
{
|
|
|
|
device_printf(sc->pd_dev, "syspd disable \n");
|
|
mtx_assert(&sc->pd_controller->mfi_io_lock, MA_OWNED);
|
|
if (sc->pd_flags & MFI_DISK_FLAGS_OPEN) {
|
|
if (sc->pd_controller->mfi_delete_busy_volumes)
|
|
return (0);
|
|
device_printf(sc->pd_dev,
|
|
"Unable to delete busy syspd device\n");
|
|
return (EBUSY);
|
|
}
|
|
sc->pd_flags |= MFI_DISK_FLAGS_DISABLED;
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
mfi_syspd_enable(struct mfi_system_pd *sc)
|
|
{
|
|
|
|
device_printf(sc->pd_dev, "syspd enable \n");
|
|
mtx_assert(&sc->pd_controller->mfi_io_lock, MA_OWNED);
|
|
sc->pd_flags &= ~MFI_DISK_FLAGS_DISABLED;
|
|
}
|
|
|
|
static void
|
|
mfi_syspd_strategy(struct bio *bio)
|
|
{
|
|
struct mfi_system_pd *sc;
|
|
struct mfi_softc *controller;
|
|
|
|
sc = bio->bio_disk->d_drv1;
|
|
|
|
if (sc == NULL) {
|
|
bio->bio_error = EINVAL;
|
|
bio->bio_flags |= BIO_ERROR;
|
|
bio->bio_resid = bio->bio_bcount;
|
|
biodone(bio);
|
|
return;
|
|
}
|
|
|
|
controller = sc->pd_controller;
|
|
bio->bio_driver1 = (void *)(uintptr_t)sc->pd_id;
|
|
/* Mark it as system PD IO */
|
|
bio->bio_driver2 = (void *)MFI_SYS_PD_IO;
|
|
mtx_lock(&controller->mfi_io_lock);
|
|
mfi_enqueue_bio(controller, bio);
|
|
mfi_startio(controller);
|
|
mtx_unlock(&controller->mfi_io_lock);
|
|
return;
|
|
}
|
|
|
|
static int
|
|
mfi_syspd_dump(void *arg, void *virt, vm_offset_t phys, off_t offset,
|
|
size_t len)
|
|
{
|
|
struct mfi_system_pd *sc;
|
|
struct mfi_softc *parent_sc;
|
|
struct disk *dp;
|
|
int error;
|
|
|
|
dp = arg;
|
|
sc = dp->d_drv1;
|
|
parent_sc = sc->pd_controller;
|
|
|
|
if (len > 0) {
|
|
if ((error = mfi_dump_syspd_blocks(parent_sc,
|
|
sc->pd_id, offset / MFI_SECTOR_LEN, virt, len)) != 0)
|
|
return (error);
|
|
} else {
|
|
/* mfi_sync_cache(parent_sc, sc->ld_id); */
|
|
}
|
|
return (0);
|
|
}
|