e2e050c8ef
This allows replacing "sys/eventfilter.h" includes with "sys/_eventfilter.h"
in other header files (e.g., sys/{bus,conf,cpu}.h) and reduces header
pollution substantially.
EVENTHANDLER_DECLARE and EVENTHANDLER_LIST_DECLAREs were moved out of .c
files into appropriate headers (e.g., sys/proc.h, powernv/opal.h).
As a side effect of reduced header pollution, many .c files and headers no
longer contain needed definitions. The remainder of the patch addresses
adding appropriate includes to fix those files.
LOCK_DEBUG and LOCK_FILE_LINE_ARG are moved to sys/_lock.h, as required by
sys/mutex.h since r326106 (but silently protected by header pollution prior
to this change).
No functional change (intended). Of course, any out of tree modules that
relied on header pollution for sys/eventhandler.h, sys/lock.h, or
sys/mutex.h inclusion need to be fixed. __FreeBSD_version has been bumped.
290 lines
7.7 KiB
C
290 lines
7.7 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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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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*
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* Copyright 1994-2009 The FreeBSD Project.
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* All rights reserved.
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*
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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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*
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* THIS SOFTWARE IS PROVIDED BY THE FREEBSD PROJECT``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FREEBSD PROJECT OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY,OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and documentation
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* are those of the authors and should not be interpreted as representing
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* official policies,either expressed or implied, of the FreeBSD Project.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_mfi.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/lock.h>
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#include <sys/module.h>
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#include <sys/malloc.h>
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#include <sys/mutex.h>
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#include <sys/selinfo.h>
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#include <sys/sysctl.h>
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#include <sys/uio.h>
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#include <sys/bio.h>
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#include <sys/bus.h>
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#include <sys/conf.h>
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#include <sys/disk.h>
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#include <geom/geom_disk.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#include <machine/md_var.h>
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#include <machine/bus.h>
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#include <sys/rman.h>
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#include <dev/mfi/mfireg.h>
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#include <dev/mfi/mfi_ioctl.h>
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#include <dev/mfi/mfivar.h>
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static int mfi_syspd_probe(device_t dev);
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static int mfi_syspd_attach(device_t dev);
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static int mfi_syspd_detach(device_t dev);
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static disk_open_t mfi_syspd_open;
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static disk_close_t mfi_syspd_close;
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static disk_strategy_t mfi_syspd_strategy;
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static dumper_t mfi_syspd_dump;
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static devclass_t mfi_syspd_devclass;
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static device_method_t mfi_syspd_methods[] = {
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DEVMETHOD(device_probe, mfi_syspd_probe),
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DEVMETHOD(device_attach, mfi_syspd_attach),
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DEVMETHOD(device_detach, mfi_syspd_detach),
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{ 0, 0 }
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};
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static driver_t mfi_syspd_driver = {
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"mfisyspd",
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mfi_syspd_methods,
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sizeof(struct mfi_system_pd)
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};
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DRIVER_MODULE(mfisyspd, mfi, mfi_syspd_driver, mfi_syspd_devclass, 0, 0);
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static int
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mfi_syspd_probe(device_t dev)
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{
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return (0);
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}
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static int
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mfi_syspd_attach(device_t dev)
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{
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struct mfi_system_pd *sc;
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struct mfi_pd_info *pd_info;
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struct mfi_system_pending *syspd_pend;
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uint64_t sectors;
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uint32_t secsize;
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sc = device_get_softc(dev);
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pd_info = device_get_ivars(dev);
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sc->pd_dev = dev;
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sc->pd_id = pd_info->ref.v.device_id;
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sc->pd_unit = device_get_unit(dev);
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sc->pd_info = pd_info;
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sc->pd_controller = device_get_softc(device_get_parent(dev));
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sc->pd_flags = 0;
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sectors = pd_info->raw_size;
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secsize = MFI_SECTOR_LEN;
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mtx_lock(&sc->pd_controller->mfi_io_lock);
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TAILQ_INSERT_TAIL(&sc->pd_controller->mfi_syspd_tqh, sc, pd_link);
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TAILQ_FOREACH(syspd_pend, &sc->pd_controller->mfi_syspd_pend_tqh,
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pd_link) {
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TAILQ_REMOVE(&sc->pd_controller->mfi_syspd_pend_tqh,
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syspd_pend, pd_link);
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free(syspd_pend, M_MFIBUF);
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break;
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}
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mtx_unlock(&sc->pd_controller->mfi_io_lock);
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device_printf(dev, "%juMB (%ju sectors) SYSPD volume (deviceid: %d)\n",
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sectors / (1024 * 1024 / secsize), sectors, sc->pd_id);
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sc->pd_disk = disk_alloc();
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sc->pd_disk->d_drv1 = sc;
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sc->pd_disk->d_maxsize = min(sc->pd_controller->mfi_max_io * secsize,
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(sc->pd_controller->mfi_max_sge - 1) * PAGE_SIZE);
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sc->pd_disk->d_name = "mfisyspd";
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sc->pd_disk->d_open = mfi_syspd_open;
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sc->pd_disk->d_close = mfi_syspd_close;
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sc->pd_disk->d_strategy = mfi_syspd_strategy;
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sc->pd_disk->d_dump = mfi_syspd_dump;
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sc->pd_disk->d_unit = sc->pd_unit;
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sc->pd_disk->d_sectorsize = secsize;
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sc->pd_disk->d_mediasize = sectors * secsize;
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if (sc->pd_disk->d_mediasize >= (1 * 1024 * 1024)) {
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sc->pd_disk->d_fwheads = 255;
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sc->pd_disk->d_fwsectors = 63;
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} else {
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sc->pd_disk->d_fwheads = 64;
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sc->pd_disk->d_fwsectors = 32;
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}
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sc->pd_disk->d_flags = DISKFLAG_UNMAPPED_BIO;
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disk_create(sc->pd_disk, DISK_VERSION);
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device_printf(dev, " SYSPD volume attached\n");
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return (0);
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}
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static int
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mfi_syspd_detach(device_t dev)
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{
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struct mfi_system_pd *sc;
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sc = device_get_softc(dev);
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device_printf(dev, "Detaching syspd\n");
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mtx_lock(&sc->pd_controller->mfi_io_lock);
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if (((sc->pd_disk->d_flags & DISKFLAG_OPEN) ||
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(sc->pd_flags & MFI_DISK_FLAGS_OPEN)) &&
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(sc->pd_controller->mfi_keep_deleted_volumes ||
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sc->pd_controller->mfi_detaching)) {
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mtx_unlock(&sc->pd_controller->mfi_io_lock);
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device_printf(dev, "Cant detach syspd\n");
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return (EBUSY);
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}
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mtx_unlock(&sc->pd_controller->mfi_io_lock);
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disk_destroy(sc->pd_disk);
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mtx_lock(&sc->pd_controller->mfi_io_lock);
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TAILQ_REMOVE(&sc->pd_controller->mfi_syspd_tqh, sc, pd_link);
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mtx_unlock(&sc->pd_controller->mfi_io_lock);
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free(sc->pd_info, M_MFIBUF);
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return (0);
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}
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static int
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mfi_syspd_open(struct disk *dp)
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{
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struct mfi_system_pd *sc;
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int error;
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sc = dp->d_drv1;
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mtx_lock(&sc->pd_controller->mfi_io_lock);
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if (sc->pd_flags & MFI_DISK_FLAGS_DISABLED)
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error = ENXIO;
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else {
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sc->pd_flags |= MFI_DISK_FLAGS_OPEN;
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error = 0;
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}
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mtx_unlock(&sc->pd_controller->mfi_io_lock);
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return (error);
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}
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static int
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mfi_syspd_close(struct disk *dp)
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{
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struct mfi_system_pd *sc;
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sc = dp->d_drv1;
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mtx_lock(&sc->pd_controller->mfi_io_lock);
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sc->pd_flags &= ~MFI_DISK_FLAGS_OPEN;
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mtx_unlock(&sc->pd_controller->mfi_io_lock);
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return (0);
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}
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int
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mfi_syspd_disable(struct mfi_system_pd *sc)
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{
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device_printf(sc->pd_dev, "syspd disable \n");
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mtx_assert(&sc->pd_controller->mfi_io_lock, MA_OWNED);
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if (sc->pd_flags & MFI_DISK_FLAGS_OPEN) {
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if (sc->pd_controller->mfi_delete_busy_volumes)
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return (0);
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device_printf(sc->pd_dev,
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"Unable to delete busy syspd device\n");
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return (EBUSY);
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}
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sc->pd_flags |= MFI_DISK_FLAGS_DISABLED;
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return (0);
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}
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void
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mfi_syspd_enable(struct mfi_system_pd *sc)
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{
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device_printf(sc->pd_dev, "syspd enable \n");
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mtx_assert(&sc->pd_controller->mfi_io_lock, MA_OWNED);
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sc->pd_flags &= ~MFI_DISK_FLAGS_DISABLED;
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}
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static void
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mfi_syspd_strategy(struct bio *bio)
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{
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struct mfi_system_pd *sc;
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struct mfi_softc *controller;
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sc = bio->bio_disk->d_drv1;
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if (sc == NULL) {
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bio->bio_error = EINVAL;
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bio->bio_flags |= BIO_ERROR;
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bio->bio_resid = bio->bio_bcount;
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biodone(bio);
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return;
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}
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controller = sc->pd_controller;
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bio->bio_driver1 = (void *)(uintptr_t)sc->pd_id;
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/* Mark it as system PD IO */
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bio->bio_driver2 = (void *)MFI_SYS_PD_IO;
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mtx_lock(&controller->mfi_io_lock);
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mfi_enqueue_bio(controller, bio);
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mfi_startio(controller);
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mtx_unlock(&controller->mfi_io_lock);
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return;
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}
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static int
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mfi_syspd_dump(void *arg, void *virt, vm_offset_t phys, off_t offset,
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size_t len)
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{
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struct mfi_system_pd *sc;
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struct mfi_softc *parent_sc;
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struct disk *dp;
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int error;
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dp = arg;
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sc = dp->d_drv1;
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parent_sc = sc->pd_controller;
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if (len > 0) {
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if ((error = mfi_dump_syspd_blocks(parent_sc,
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sc->pd_id, offset / MFI_SECTOR_LEN, virt, len)) != 0)
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return (error);
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} else {
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/* mfi_sync_cache(parent_sc, sc->ld_id); */
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}
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return (0);
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}
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