/*- * Written by: David Jeffery * Copyright (c) 2002 Adaptec Inc. * 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. * 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 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. * * $FreeBSD: src/sys/dev/ips/ips_disk.c,v 1.4 2003/09/22 04:59:07 njl Exp $ * $DragonFly: src/sys/dev/raid/ips/ips_disk.c,v 1.5 2004/10/06 02:12:31 y0netan1 Exp $ */ #include #include #include #include static int ipsd_probe(device_t dev); static int ipsd_attach(device_t dev); static int ipsd_detach(device_t dev); static disk_open_t ipsd_open; static disk_close_t ipsd_close; static disk_strategy_t ipsd_strategy; static struct cdevsw ipsd_cdevsw = { .d_name = "ipsd", .d_maj = IPSD_CDEV_MAJOR, .d_flags = D_DISK, .d_port = NULL, .d_clone = NULL, .old_open = ipsd_open, .old_close = ipsd_close, .old_strategy = ipsd_strategy, .old_read = physread, .old_write = physwrite, }; static device_method_t ipsd_methods[] = { DEVMETHOD(device_probe, ipsd_probe), DEVMETHOD(device_attach, ipsd_attach), DEVMETHOD(device_detach, ipsd_detach), { 0, 0 } }; static driver_t ipsd_driver = { "ipsd", ipsd_methods, sizeof(ipsdisk_softc_t) }; static devclass_t ipsd_devclass; DRIVER_MODULE(ipsd, ips, ipsd_driver, ipsd_devclass, 0, 0); /* * handle opening of disk device. It must set up all information about * the geometry and size of the disk */ static int ipsd_open(dev_t dev, int oflags, int devtype, d_thread_t *td) { ipsdisk_softc_t *dsc = dev->si_drv1; if (dsc == NULL) return (ENXIO); dsc->state |= IPS_DEV_OPEN; DEVICE_PRINTF(2, dsc->dev, "I'm open\n"); return 0; } static int ipsd_close(dev_t dev, int oflags, int devtype, d_thread_t *td) { ipsdisk_softc_t *dsc = dev->si_drv1; dsc->state &= ~IPS_DEV_OPEN; DEVICE_PRINTF(2, dsc->dev, "I'm closed for the day\n"); return 0; } /* ipsd_finish is called to clean up and return a completed IO request */ void ipsd_finish(struct bio *iobuf) { ipsdisk_softc_t *dsc; dsc = iobuf->bio_disk->d_drv1; if (iobuf->bio_flags & BIO_ERROR) { device_printf(dsc->dev, "iobuf error %d\n", iobuf->bio_error); } else iobuf->bio_resid = 0; devstat_end_transaction_buf(&dsc->stats, iobuf); biodone(iobuf); } static void ipsd_strategy(struct bio *iobuf) { ipsdisk_softc_t *dsc; dsc = iobuf->bio_disk->d_drv1; DEVICE_PRINTF(8, dsc->dev, "in strategy\n"); iobuf->bio_driver1 = (void *)(uintptr_t)dsc->sc->drives[dsc->disk_number].drivenum; devstat_start_transaction(&dsc->stats); ips_start_io_request(dsc->sc, iobuf); } static int ipsd_probe(device_t dev) { DEVICE_PRINTF(2, dev, "in probe\n"); device_set_desc(dev, "Logical Drive"); return 0; } static int ipsd_attach(device_t dev) { device_t adapter; ipsdisk_softc_t *dsc; struct disklabel *label; u_int totalsectors; u_int nheads, nsectors; DEVICE_PRINTF(2, dev, "in attach\n"); dsc = (ipsdisk_softc_t *)device_get_softc(dev); bzero(dsc, sizeof(ipsdisk_softc_t)); adapter = device_get_parent(dev); dsc->dev = dev; dsc->sc = device_get_softc(adapter); dsc->unit = device_get_unit(dev); dsc->disk_number = (uintptr_t) device_get_ivars(dev); totalsectors = dsc->sc->drives[dsc->disk_number].sector_count; if ((totalsectors > 0x400000) && ((dsc->sc->adapter_info.miscflags & 0x8) == 0)) { nheads = IPS_NORM_HEADS; nsectors = IPS_NORM_SECTORS; } else { nheads = IPS_COMP_HEADS; nsectors = IPS_COMP_SECTORS; } devstat_add_entry(&dsc->stats, "ipsd", dsc->unit, DEV_BSIZE, DEVSTAT_NO_ORDERED_TAGS, DEVSTAT_TYPE_DIRECT | DEVSTAT_TYPE_IF_SCSI, DEVSTAT_PRIORITY_DISK); dsc->ipsd_dev_t = disk_create(dsc->unit, &dsc->ipsd_disk, 0, &ipsd_cdevsw); dsc->ipsd_dev_t->si_drv1 = dsc; dsc->ipsd_dev_t->si_iosize_max = IPS_MAX_IO_SIZE; label = &dsc->ipsd_disk.d_label; bzero(label, sizeof(*label)); label->d_ntracks = nheads; label->d_nsectors = nsectors; label->d_type = DTYPE_ESDI; label->d_secsize = IPS_BLKSIZE; label->d_ncylinders = totalsectors / nheads / nsectors; label->d_secpercyl = nsectors / nheads; label->d_secperunit = totalsectors; device_printf(dev, "Logical Drive (%dMB)\n", dsc->sc->drives[dsc->disk_number].sector_count >> 11); return 0; } static int ipsd_detach(device_t dev) { ipsdisk_softc_t *dsc; DEVICE_PRINTF(2, dev, "in detach\n"); dsc = (ipsdisk_softc_t *)device_get_softc(dev); if (dsc->state & IPS_DEV_OPEN) return (EBUSY); devstat_remove_entry(&dsc->stats); disk_destroy(&dsc->ipsd_disk); return 0; }