151973Smsmith/*- 251973Smsmith * Copyright (c) 1999 Jonathan Lemon 351973Smsmith * Copyright (c) 1999 Michael Smith 451973Smsmith * All rights reserved. 551973Smsmith * 651973Smsmith * Redistribution and use in source and binary forms, with or without 751973Smsmith * modification, are permitted provided that the following conditions 851973Smsmith * are met: 951973Smsmith * 1. Redistributions of source code must retain the above copyright 1051973Smsmith * notice, this list of conditions and the following disclaimer. 1151973Smsmith * 2. Redistributions in binary form must reproduce the above copyright 1251973Smsmith * notice, this list of conditions and the following disclaimer in the 1351973Smsmith * documentation and/or other materials provided with the distribution. 1451973Smsmith * 1551973Smsmith * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1651973Smsmith * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1751973Smsmith * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1851973Smsmith * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1951973Smsmith * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2051973Smsmith * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2151973Smsmith * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2251973Smsmith * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2351973Smsmith * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2451973Smsmith * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2551973Smsmith * SUCH DAMAGE. 2651973Smsmith * 2751973Smsmith */ 2851973Smsmith 29119418Sobrien#include <sys/cdefs.h> 30119418Sobrien__FBSDID("$FreeBSD: releng/10.2/sys/dev/mlx/mlx_disk.c 240963 2012-09-26 14:17:14Z jhb $"); 31119418Sobrien 3251973Smsmith/* 3351973Smsmith * Disk driver for Mylex DAC960 RAID adapters. 3451973Smsmith */ 3551973Smsmith 3651973Smsmith#include <sys/param.h> 3751973Smsmith#include <sys/systm.h> 38240963Sjhb#include <sys/bio.h> 3951973Smsmith#include <sys/kernel.h> 40240608Sjhb#include <sys/lock.h> 41129879Sphk#include <sys/module.h> 42240608Sjhb#include <sys/sx.h> 4351973Smsmith 4451973Smsmith#include <sys/bus.h> 4551973Smsmith#include <sys/conf.h> 4651973Smsmith 4751973Smsmith#include <machine/bus.h> 4851973Smsmith#include <sys/rman.h> 4951973Smsmith 50112946Sphk#include <geom/geom_disk.h> 51112946Sphk 5251973Smsmith#include <dev/mlx/mlxio.h> 5351973Smsmith#include <dev/mlx/mlxvar.h> 5452544Smsmith#include <dev/mlx/mlxreg.h> 5551973Smsmith 5651973Smsmith/* prototypes */ 5751973Smsmithstatic int mlxd_probe(device_t dev); 5851973Smsmithstatic int mlxd_attach(device_t dev); 5951973Smsmithstatic int mlxd_detach(device_t dev); 6051973Smsmith 6159136Smsmithdevclass_t mlxd_devclass; 6251973Smsmith 6351973Smsmithstatic device_method_t mlxd_methods[] = { 6451973Smsmith DEVMETHOD(device_probe, mlxd_probe), 6551973Smsmith DEVMETHOD(device_attach, mlxd_attach), 6651973Smsmith DEVMETHOD(device_detach, mlxd_detach), 6751973Smsmith { 0, 0 } 6851973Smsmith}; 6951973Smsmith 7051973Smsmithstatic driver_t mlxd_driver = { 7151973Smsmith "mlxd", 7251973Smsmith mlxd_methods, 7351973Smsmith sizeof(struct mlxd_softc) 7451973Smsmith}; 7551973Smsmith 7651973SmsmithDRIVER_MODULE(mlxd, mlx, mlxd_driver, mlxd_devclass, 0, 0); 7751973Smsmith 7851973Smsmithstatic int 79111469Sphkmlxd_open(struct disk *dp) 8051973Smsmith{ 81111469Sphk struct mlxd_softc *sc = (struct mlxd_softc *)dp->d_drv1; 8251973Smsmith 8358188Smsmith debug_called(1); 8451973Smsmith 8551973Smsmith if (sc == NULL) 8651973Smsmith return (ENXIO); 8751973Smsmith 8851973Smsmith /* controller not active? */ 89240608Sjhb MLX_CONFIG_LOCK(sc->mlxd_controller); 90240608Sjhb MLX_IO_LOCK(sc->mlxd_controller); 91240608Sjhb if (sc->mlxd_controller->mlx_state & MLX_STATE_SHUTDOWN) { 92240608Sjhb MLX_IO_UNLOCK(sc->mlxd_controller); 93240608Sjhb MLX_CONFIG_UNLOCK(sc->mlxd_controller); 9451973Smsmith return(ENXIO); 95240608Sjhb } 9651973Smsmith 9751973Smsmith sc->mlxd_flags |= MLXD_OPEN; 98240608Sjhb MLX_IO_UNLOCK(sc->mlxd_controller); 99240608Sjhb MLX_CONFIG_UNLOCK(sc->mlxd_controller); 10051973Smsmith return (0); 10151973Smsmith} 10251973Smsmith 10351973Smsmithstatic int 104111469Sphkmlxd_close(struct disk *dp) 10551973Smsmith{ 106111469Sphk struct mlxd_softc *sc = (struct mlxd_softc *)dp->d_drv1; 10751973Smsmith 10858188Smsmith debug_called(1); 109240608Sjhb 11051973Smsmith if (sc == NULL) 11151973Smsmith return (ENXIO); 112240608Sjhb MLX_CONFIG_LOCK(sc->mlxd_controller); 113240608Sjhb MLX_IO_LOCK(sc->mlxd_controller); 11451973Smsmith sc->mlxd_flags &= ~MLXD_OPEN; 115240608Sjhb MLX_IO_UNLOCK(sc->mlxd_controller); 116240608Sjhb MLX_CONFIG_UNLOCK(sc->mlxd_controller); 11751973Smsmith return (0); 11851973Smsmith} 11951973Smsmith 12051973Smsmithstatic int 121111469Sphkmlxd_ioctl(struct disk *dp, u_long cmd, void *addr, int flag, struct thread *td) 12251973Smsmith{ 123111469Sphk struct mlxd_softc *sc = (struct mlxd_softc *)dp->d_drv1; 12451973Smsmith int error; 12551973Smsmith 12658188Smsmith debug_called(1); 12751973Smsmith 12851973Smsmith if (sc == NULL) 12951973Smsmith return (ENXIO); 13051973Smsmith 13183366Sjulian if ((error = mlx_submit_ioctl(sc->mlxd_controller, sc->mlxd_drive, cmd, addr, flag, td)) != ENOIOCTL) { 13258188Smsmith debug(0, "mlx_submit_ioctl returned %d\n", error); 13351973Smsmith return(error); 13451973Smsmith } 13551973Smsmith return (ENOTTY); 13651973Smsmith} 13751973Smsmith 13851973Smsmith/* 13951973Smsmith * Read/write routine for a buffer. Finds the proper unit, range checks 14051973Smsmith * arguments, and schedules the transfer. Does not wait for the transfer 14151973Smsmith * to complete. Multi-page transfers are supported. All I/O requests must 14251973Smsmith * be a multiple of a sector in length. 14351973Smsmith */ 14451973Smsmithstatic void 145240963Sjhbmlxd_strategy(struct bio *bp) 14651973Smsmith{ 147240963Sjhb struct mlxd_softc *sc = bp->bio_disk->d_drv1; 14851973Smsmith 14958188Smsmith debug_called(1); 15051973Smsmith 15151973Smsmith /* bogus disk? */ 15251973Smsmith if (sc == NULL) { 153240963Sjhb bp->bio_error = EINVAL; 154240963Sjhb bp->bio_flags |= BIO_ERROR; 15551973Smsmith goto bad; 15651973Smsmith } 15751973Smsmith 15851973Smsmith /* XXX may only be temporarily offline - sleep? */ 159240608Sjhb MLX_IO_LOCK(sc->mlxd_controller); 16051973Smsmith if (sc->mlxd_drive->ms_state == MLX_SYSD_OFFLINE) { 161240608Sjhb MLX_IO_UNLOCK(sc->mlxd_controller); 162240963Sjhb bp->bio_error = ENXIO; 163240963Sjhb bp->bio_flags |= BIO_ERROR; 16451973Smsmith goto bad; 16551973Smsmith } 16651973Smsmith 16751973Smsmith mlx_submit_buf(sc->mlxd_controller, bp); 168240608Sjhb MLX_IO_UNLOCK(sc->mlxd_controller); 16951973Smsmith return; 17051973Smsmith 17151973Smsmith bad: 17251973Smsmith /* 17378752Smsmith * Correctly set the bio to indicate a failed tranfer. 17451973Smsmith */ 175240963Sjhb bp->bio_resid = bp->bio_bcount; 176240963Sjhb biodone(bp); 17751973Smsmith return; 17851973Smsmith} 17951973Smsmith 18051973Smsmithvoid 181240963Sjhbmlxd_intr(struct bio *bp) 18251973Smsmith{ 18351973Smsmith 18458188Smsmith debug_called(1); 18551973Smsmith 186240963Sjhb if (bp->bio_flags & BIO_ERROR) 187240963Sjhb bp->bio_error = EIO; 18851973Smsmith else 189240963Sjhb bp->bio_resid = 0; 19051973Smsmith 191240963Sjhb biodone(bp); 19251973Smsmith} 19351973Smsmith 19451973Smsmithstatic int 19551973Smsmithmlxd_probe(device_t dev) 19651973Smsmith{ 19751973Smsmith 19858188Smsmith debug_called(1); 19951973Smsmith 20051973Smsmith device_set_desc(dev, "Mylex System Drive"); 20151973Smsmith return (0); 20251973Smsmith} 20351973Smsmith 20451973Smsmithstatic int 20551973Smsmithmlxd_attach(device_t dev) 20651973Smsmith{ 20751973Smsmith struct mlxd_softc *sc = (struct mlxd_softc *)device_get_softc(dev); 20851973Smsmith device_t parent; 20951973Smsmith char *state; 21060074Smsmith int s1, s2; 21151973Smsmith 21258188Smsmith debug_called(1); 21351973Smsmith 21451973Smsmith parent = device_get_parent(dev); 21551973Smsmith sc->mlxd_controller = (struct mlx_softc *)device_get_softc(parent); 21651973Smsmith sc->mlxd_unit = device_get_unit(dev); 21751973Smsmith sc->mlxd_drive = device_get_ivars(dev); 21852273Smsmith sc->mlxd_dev = dev; 21951973Smsmith 22051973Smsmith switch(sc->mlxd_drive->ms_state) { 22151973Smsmith case MLX_SYSD_ONLINE: 22251973Smsmith state = "online"; 22351973Smsmith break; 22451973Smsmith case MLX_SYSD_CRITICAL: 22551973Smsmith state = "critical"; 22651973Smsmith break; 22751973Smsmith case MLX_SYSD_OFFLINE: 22851973Smsmith state = "offline"; 22951973Smsmith break; 23051973Smsmith default: 23151973Smsmith state = "unknown state"; 23251973Smsmith } 23351973Smsmith 23452785Smsmith device_printf(dev, "%uMB (%u sectors) RAID %d (%s)\n", 23551973Smsmith sc->mlxd_drive->ms_size / ((1024 * 1024) / MLX_BLKSIZE), 23651973Smsmith sc->mlxd_drive->ms_size, sc->mlxd_drive->ms_raidlevel, state); 23751973Smsmith 238125975Sphk sc->mlxd_disk = disk_alloc(); 239125975Sphk sc->mlxd_disk->d_open = mlxd_open; 240125975Sphk sc->mlxd_disk->d_close = mlxd_close; 241125975Sphk sc->mlxd_disk->d_ioctl = mlxd_ioctl; 242125975Sphk sc->mlxd_disk->d_strategy = mlxd_strategy; 243125975Sphk sc->mlxd_disk->d_name = "mlxd"; 244125975Sphk sc->mlxd_disk->d_unit = sc->mlxd_unit; 245125975Sphk sc->mlxd_disk->d_drv1 = sc; 246125975Sphk sc->mlxd_disk->d_sectorsize = MLX_BLKSIZE; 247125975Sphk sc->mlxd_disk->d_mediasize = MLX_BLKSIZE * (off_t)sc->mlxd_drive->ms_size; 248125975Sphk sc->mlxd_disk->d_fwsectors = sc->mlxd_drive->ms_sectors; 249125975Sphk sc->mlxd_disk->d_fwheads = sc->mlxd_drive->ms_heads; 25051973Smsmith 25160074Smsmith /* 25260074Smsmith * Set maximum I/O size to the lesser of the recommended maximum and the practical 253111499Sjhb * maximum except on v2 cards where the maximum is set to 8 pages. 25460074Smsmith */ 255111499Sjhb if (sc->mlxd_controller->mlx_iftype == MLX_IFTYPE_2) 256138090Sscottl sc->mlxd_disk->d_maxsize = 8 * MLX_PAGE_SIZE; 257111499Sjhb else { 258111499Sjhb s1 = sc->mlxd_controller->mlx_enq2->me_maxblk * MLX_BLKSIZE; 259138090Sscottl s2 = (sc->mlxd_controller->mlx_enq2->me_max_sg - 1) * MLX_PAGE_SIZE; 260125975Sphk sc->mlxd_disk->d_maxsize = imin(s1, s2); 261111499Sjhb } 26252225Smsmith 263125975Sphk disk_create(sc->mlxd_disk, DISK_VERSION); 264111469Sphk 26551973Smsmith return (0); 26651973Smsmith} 26751973Smsmith 26851973Smsmithstatic int 26951973Smsmithmlxd_detach(device_t dev) 27051973Smsmith{ 27151973Smsmith struct mlxd_softc *sc = (struct mlxd_softc *)device_get_softc(dev); 27251973Smsmith 27358188Smsmith debug_called(1); 27451973Smsmith 275125975Sphk disk_destroy(sc->mlxd_disk); 27651973Smsmith 27751973Smsmith return(0); 27851973Smsmith} 27951973Smsmith 280