1227068Sambrisko/*- 2227068Sambrisko * Redistribution and use in source and binary forms, with or without 3227068Sambrisko * modification, are permitted provided that the following conditions 4227068Sambrisko * are met: 5227068Sambrisko * 6227068Sambrisko * Copyright 1994-2009 The FreeBSD Project. 7233711Sambrisko * All rights reserved. 8233711Sambrisko * 9227068Sambrisko * 1. Redistributions of source code must retain the above copyright 10227068Sambrisko * notice, this list of conditions and the following disclaimer. 11227068Sambrisko * 2. Redistributions in binary form must reproduce the above copyright 12227068Sambrisko * notice, this list of conditions and the following disclaimer in the 13227068Sambrisko * documentation and/or other materials provided with the distribution. 14227068Sambrisko * 15227068Sambrisko * THIS SOFTWARE IS PROVIDED BY THE FREEBSD PROJECT``AS IS'' AND 16227068Sambrisko * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 17233711Sambrisko * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 18233711Sambrisko * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FREEBSD PROJECT OR 19233711Sambrisko * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 20233711Sambrisko * EXEMPLARY,OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 21227068Sambrisko * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 22233711Sambrisko * PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY THEORY 23227068Sambrisko * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 24233711Sambrisko * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 25227068Sambrisko * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26227068Sambrisko * 27233711Sambrisko * The views and conclusions contained in the software and documentation 28233711Sambrisko * are those of the authors and should not be interpreted as representing 29233711Sambrisko * official policies,either expressed or implied, of the FreeBSD Project. 30227068Sambrisko */ 31227068Sambrisko 32227068Sambrisko#include <sys/cdefs.h> 33233711Sambrisko__FBSDID("$FreeBSD$"); 34227068Sambrisko 35227068Sambrisko#include "opt_mfi.h" 36227068Sambrisko 37227068Sambrisko#include <sys/param.h> 38227068Sambrisko#include <sys/systm.h> 39227068Sambrisko#include <sys/kernel.h> 40227068Sambrisko#include <sys/selinfo.h> 41227068Sambrisko#include <sys/module.h> 42227068Sambrisko#include <sys/malloc.h> 43233711Sambrisko#include <sys/sysctl.h> 44227068Sambrisko#include <sys/uio.h> 45227068Sambrisko 46227068Sambrisko#include <sys/bio.h> 47227068Sambrisko#include <sys/bus.h> 48227068Sambrisko#include <sys/conf.h> 49227068Sambrisko#include <sys/disk.h> 50227068Sambrisko#include <geom/geom_disk.h> 51227068Sambrisko 52227068Sambrisko#include <vm/vm.h> 53227068Sambrisko#include <vm/pmap.h> 54227068Sambrisko 55227068Sambrisko#include <machine/md_var.h> 56227068Sambrisko#include <machine/bus.h> 57227068Sambrisko#include <sys/rman.h> 58227068Sambrisko 59227068Sambrisko#include <dev/mfi/mfireg.h> 60227068Sambrisko#include <dev/mfi/mfi_ioctl.h> 61227068Sambrisko#include <dev/mfi/mfivar.h> 62227068Sambrisko 63227068Sambriskostatic int mfi_syspd_probe(device_t dev); 64227068Sambriskostatic int mfi_syspd_attach(device_t dev); 65227068Sambriskostatic int mfi_syspd_detach(device_t dev); 66227068Sambrisko 67227068Sambriskostatic disk_open_t mfi_syspd_open; 68227068Sambriskostatic disk_close_t mfi_syspd_close; 69227068Sambriskostatic disk_strategy_t mfi_syspd_strategy; 70227068Sambriskostatic dumper_t mfi_syspd_dump; 71227068Sambrisko 72227068Sambriskostatic devclass_t mfi_syspd_devclass; 73227068Sambrisko 74227068Sambriskostatic device_method_t mfi_syspd_methods[] = { 75227068Sambrisko DEVMETHOD(device_probe, mfi_syspd_probe), 76227068Sambrisko DEVMETHOD(device_attach, mfi_syspd_attach), 77227068Sambrisko DEVMETHOD(device_detach, mfi_syspd_detach), 78227068Sambrisko { 0, 0 } 79227068Sambrisko}; 80227068Sambrisko 81227068Sambriskostatic driver_t mfi_syspd_driver = { 82227068Sambrisko "mfisyspd", 83227068Sambrisko mfi_syspd_methods, 84227068Sambrisko sizeof(struct mfi_system_pd) 85227068Sambrisko}; 86227068Sambrisko 87227068SambriskoDRIVER_MODULE(mfisyspd, mfi, mfi_syspd_driver, mfi_syspd_devclass, 0, 0); 88227068Sambrisko 89227068Sambriskostatic int 90227068Sambriskomfi_syspd_probe(device_t dev) 91227068Sambrisko{ 92227068Sambrisko return (0); 93227068Sambrisko} 94227068Sambrisko 95227068Sambriskostatic int 96227068Sambriskomfi_syspd_attach(device_t dev) 97227068Sambrisko{ 98227068Sambrisko struct mfi_system_pd *sc; 99227068Sambrisko struct mfi_pd_info *pd_info; 100242681Sambrisko struct mfi_system_pending *syspd_pend; 101227068Sambrisko uint64_t sectors; 102227068Sambrisko uint32_t secsize; 103227068Sambrisko 104227068Sambrisko sc = device_get_softc(dev); 105227068Sambrisko pd_info = device_get_ivars(dev); 106227068Sambrisko sc->pd_dev = dev; 107227068Sambrisko sc->pd_id = pd_info->ref.v.device_id; 108227068Sambrisko sc->pd_unit = device_get_unit(dev); 109227068Sambrisko sc->pd_info = pd_info; 110227068Sambrisko sc->pd_controller = device_get_softc(device_get_parent(dev)); 111227068Sambrisko sc->pd_flags = 0; 112227068Sambrisko 113227068Sambrisko sectors = pd_info->raw_size; 114227068Sambrisko secsize = MFI_SECTOR_LEN; 115227068Sambrisko mtx_lock(&sc->pd_controller->mfi_io_lock); 116227068Sambrisko TAILQ_INSERT_TAIL(&sc->pd_controller->mfi_syspd_tqh, sc, pd_link); 117242681Sambrisko TAILQ_FOREACH(syspd_pend, &sc->pd_controller->mfi_syspd_pend_tqh, 118242681Sambrisko pd_link) { 119242681Sambrisko TAILQ_REMOVE(&sc->pd_controller->mfi_syspd_pend_tqh, 120242681Sambrisko syspd_pend, pd_link); 121242681Sambrisko free(syspd_pend, M_MFIBUF); 122242681Sambrisko break; 123242681Sambrisko } 124227068Sambrisko mtx_unlock(&sc->pd_controller->mfi_io_lock); 125243078Seadler device_printf(dev, "%juMB (%ju sectors) SYSPD volume (deviceid: %d)\n", 126243078Seadler sectors / (1024 * 1024 / secsize), sectors, sc->pd_id); 127227068Sambrisko sc->pd_disk = disk_alloc(); 128227068Sambrisko sc->pd_disk->d_drv1 = sc; 129254330Ssbruno sc->pd_disk->d_maxsize = min(sc->pd_controller->mfi_max_io * secsize, 130254330Ssbruno (sc->pd_controller->mfi_max_sge - 1) * PAGE_SIZE); 131227068Sambrisko sc->pd_disk->d_name = "mfisyspd"; 132227068Sambrisko sc->pd_disk->d_open = mfi_syspd_open; 133227068Sambrisko sc->pd_disk->d_close = mfi_syspd_close; 134227068Sambrisko sc->pd_disk->d_strategy = mfi_syspd_strategy; 135227068Sambrisko sc->pd_disk->d_dump = mfi_syspd_dump; 136227068Sambrisko sc->pd_disk->d_unit = sc->pd_unit; 137227068Sambrisko sc->pd_disk->d_sectorsize = secsize; 138227068Sambrisko sc->pd_disk->d_mediasize = sectors * secsize; 139227068Sambrisko if (sc->pd_disk->d_mediasize >= (1 * 1024 * 1024)) { 140227068Sambrisko sc->pd_disk->d_fwheads = 255; 141227068Sambrisko sc->pd_disk->d_fwsectors = 63; 142227068Sambrisko } else { 143227068Sambrisko sc->pd_disk->d_fwheads = 64; 144227068Sambrisko sc->pd_disk->d_fwsectors = 32; 145227068Sambrisko } 146267084Skib sc->pd_disk->d_flags = DISKFLAG_UNMAPPED_BIO; 147227068Sambrisko disk_create(sc->pd_disk, DISK_VERSION); 148227068Sambrisko 149227068Sambrisko device_printf(dev, " SYSPD volume attached\n"); 150242681Sambrisko 151227068Sambrisko return (0); 152227068Sambrisko} 153227068Sambrisko 154227068Sambriskostatic int 155227068Sambriskomfi_syspd_detach(device_t dev) 156227068Sambrisko{ 157227068Sambrisko struct mfi_system_pd *sc; 158227068Sambrisko 159227068Sambrisko sc = device_get_softc(dev); 160227068Sambrisko device_printf(dev, "Detaching syspd\n"); 161227068Sambrisko mtx_lock(&sc->pd_controller->mfi_io_lock); 162227068Sambrisko if (((sc->pd_disk->d_flags & DISKFLAG_OPEN) || 163227068Sambrisko (sc->pd_flags & MFI_DISK_FLAGS_OPEN)) && 164227068Sambrisko (sc->pd_controller->mfi_keep_deleted_volumes || 165227068Sambrisko sc->pd_controller->mfi_detaching)) { 166227068Sambrisko mtx_unlock(&sc->pd_controller->mfi_io_lock); 167233711Sambrisko device_printf(dev, "Cant detach syspd\n"); 168227068Sambrisko return (EBUSY); 169227068Sambrisko } 170227068Sambrisko mtx_unlock(&sc->pd_controller->mfi_io_lock); 171227068Sambrisko 172227068Sambrisko disk_destroy(sc->pd_disk); 173227068Sambrisko mtx_lock(&sc->pd_controller->mfi_io_lock); 174227068Sambrisko TAILQ_REMOVE(&sc->pd_controller->mfi_syspd_tqh, sc, pd_link); 175227068Sambrisko mtx_unlock(&sc->pd_controller->mfi_io_lock); 176227068Sambrisko free(sc->pd_info, M_MFIBUF); 177227068Sambrisko return (0); 178227068Sambrisko} 179227068Sambrisko 180227068Sambriskostatic int 181227068Sambriskomfi_syspd_open(struct disk *dp) 182227068Sambrisko{ 183227068Sambrisko struct mfi_system_pd *sc; 184227068Sambrisko int error; 185227068Sambrisko 186227068Sambrisko sc = dp->d_drv1; 187227068Sambrisko mtx_lock(&sc->pd_controller->mfi_io_lock); 188227068Sambrisko if (sc->pd_flags & MFI_DISK_FLAGS_DISABLED) 189227068Sambrisko error = ENXIO; 190227068Sambrisko else { 191227068Sambrisko sc->pd_flags |= MFI_DISK_FLAGS_OPEN; 192227068Sambrisko error = 0; 193227068Sambrisko } 194227068Sambrisko mtx_unlock(&sc->pd_controller->mfi_io_lock); 195227068Sambrisko return (error); 196227068Sambrisko} 197227068Sambrisko 198227068Sambriskostatic int 199227068Sambriskomfi_syspd_close(struct disk *dp) 200227068Sambrisko{ 201227068Sambrisko struct mfi_system_pd *sc; 202227068Sambrisko 203227068Sambrisko sc = dp->d_drv1; 204227068Sambrisko mtx_lock(&sc->pd_controller->mfi_io_lock); 205227068Sambrisko sc->pd_flags &= ~MFI_DISK_FLAGS_OPEN; 206227068Sambrisko mtx_unlock(&sc->pd_controller->mfi_io_lock); 207227068Sambrisko 208227068Sambrisko return (0); 209227068Sambrisko} 210227068Sambrisko 211227068Sambriskoint 212227068Sambriskomfi_syspd_disable(struct mfi_system_pd *sc) 213227068Sambrisko{ 214227068Sambrisko 215233711Sambrisko device_printf(sc->pd_dev, "syspd disable \n"); 216227068Sambrisko mtx_assert(&sc->pd_controller->mfi_io_lock, MA_OWNED); 217227068Sambrisko if (sc->pd_flags & MFI_DISK_FLAGS_OPEN) { 218227068Sambrisko if (sc->pd_controller->mfi_delete_busy_volumes) 219227068Sambrisko return (0); 220233711Sambrisko device_printf(sc->pd_dev, 221233711Sambrisko "Unable to delete busy syspd device\n"); 222227068Sambrisko return (EBUSY); 223227068Sambrisko } 224227068Sambrisko sc->pd_flags |= MFI_DISK_FLAGS_DISABLED; 225227068Sambrisko return (0); 226227068Sambrisko} 227227068Sambrisko 228227068Sambriskovoid 229227068Sambriskomfi_syspd_enable(struct mfi_system_pd *sc) 230227068Sambrisko{ 231227068Sambrisko 232233711Sambrisko device_printf(sc->pd_dev, "syspd enable \n"); 233227068Sambrisko mtx_assert(&sc->pd_controller->mfi_io_lock, MA_OWNED); 234227068Sambrisko sc->pd_flags &= ~MFI_DISK_FLAGS_DISABLED; 235227068Sambrisko} 236227068Sambrisko 237227068Sambriskostatic void 238227068Sambriskomfi_syspd_strategy(struct bio *bio) 239227068Sambrisko{ 240227068Sambrisko struct mfi_system_pd *sc; 241227068Sambrisko struct mfi_softc *controller; 242227068Sambrisko 243227068Sambrisko sc = bio->bio_disk->d_drv1; 244227068Sambrisko 245227068Sambrisko if (sc == NULL) { 246227068Sambrisko bio->bio_error = EINVAL; 247227068Sambrisko bio->bio_flags |= BIO_ERROR; 248227068Sambrisko bio->bio_resid = bio->bio_bcount; 249227068Sambrisko biodone(bio); 250227068Sambrisko return; 251227068Sambrisko } 252227068Sambrisko 253227068Sambrisko controller = sc->pd_controller; 254227068Sambrisko bio->bio_driver1 = (void *)(uintptr_t)sc->pd_id; 255227068Sambrisko /* Mark it as system PD IO */ 256227068Sambrisko bio->bio_driver2 = (void *)MFI_SYS_PD_IO; 257227068Sambrisko mtx_lock(&controller->mfi_io_lock); 258227068Sambrisko mfi_enqueue_bio(controller, bio); 259227068Sambrisko mfi_startio(controller); 260227068Sambrisko mtx_unlock(&controller->mfi_io_lock); 261227068Sambrisko return; 262227068Sambrisko} 263227068Sambrisko 264227068Sambriskostatic int 265233711Sambriskomfi_syspd_dump(void *arg, void *virt, vm_offset_t phys, off_t offset, 266233711Sambrisko size_t len) 267227068Sambrisko{ 268227068Sambrisko struct mfi_system_pd *sc; 269227068Sambrisko struct mfi_softc *parent_sc; 270227068Sambrisko struct disk *dp; 271227068Sambrisko int error; 272227068Sambrisko 273227068Sambrisko dp = arg; 274227068Sambrisko sc = dp->d_drv1; 275227068Sambrisko parent_sc = sc->pd_controller; 276227068Sambrisko 277227068Sambrisko if (len > 0) { 278233711Sambrisko if ((error = mfi_dump_syspd_blocks(parent_sc, 279233711Sambrisko sc->pd_id, offset / MFI_SECTOR_LEN, virt, len)) != 0) 280227068Sambrisko return (error); 281227068Sambrisko } else { 282227068Sambrisko /* mfi_sync_cache(parent_sc, sc->ld_id); */ 283227068Sambrisko } 284227068Sambrisko return (0); 285227068Sambrisko} 286