amr.c revision 65763
151974Smsmith/*- 265245Smsmith * Copyright (c) 1999,2000 Michael Smith 365245Smsmith * Copyright (c) 2000 BSDi 451974Smsmith * All rights reserved. 551974Smsmith * 651974Smsmith * Redistribution and use in source and binary forms, with or without 751974Smsmith * modification, are permitted provided that the following conditions 851974Smsmith * are met: 951974Smsmith * 1. Redistributions of source code must retain the above copyright 1051974Smsmith * notice, this list of conditions and the following disclaimer. 1151974Smsmith * 2. Redistributions in binary form must reproduce the above copyright 1251974Smsmith * notice, this list of conditions and the following disclaimer in the 1351974Smsmith * documentation and/or other materials provided with the distribution. 1451974Smsmith * 1551974Smsmith * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1651974Smsmith * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1751974Smsmith * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1851974Smsmith * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1951974Smsmith * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2051974Smsmith * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2151974Smsmith * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2251974Smsmith * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2351974Smsmith * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2451974Smsmith * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2551974Smsmith * SUCH DAMAGE. 2651974Smsmith * 2751974Smsmith * $FreeBSD: head/sys/dev/amr/amr.c 65763 2000-09-11 23:19:13Z msmith $ 2851974Smsmith */ 2951974Smsmith 3051974Smsmith/* 3165245Smsmith * Driver for the AMI MegaRaid family of controllers. 3251974Smsmith */ 3351974Smsmith 3451974Smsmith#include <sys/param.h> 3551974Smsmith#include <sys/systm.h> 3651974Smsmith#include <sys/malloc.h> 3751974Smsmith#include <sys/kernel.h> 3851974Smsmith 3965245Smsmith#include <dev/amr/amr_compat.h> 4051974Smsmith#include <sys/bus.h> 4151974Smsmith#include <sys/conf.h> 4251974Smsmith#include <sys/devicestat.h> 4351974Smsmith#include <sys/disk.h> 4465245Smsmith#include <sys/stat.h> 4551974Smsmith 4665245Smsmith#include <machine/bus_memio.h> 4765245Smsmith#include <machine/bus_pio.h> 4865245Smsmith#include <machine/bus.h> 4951974Smsmith#include <machine/resource.h> 5051974Smsmith#include <machine/clock.h> 5151974Smsmith#include <sys/rman.h> 5251974Smsmith 5365245Smsmith#include <pci/pcireg.h> 5465245Smsmith#include <pci/pcivar.h> 5565245Smsmith 5651974Smsmith#include <dev/amr/amrio.h> 5751974Smsmith#include <dev/amr/amrreg.h> 5851974Smsmith#include <dev/amr/amrvar.h> 5965245Smsmith#define AMR_DEFINE_TABLES 6065245Smsmith#include <dev/amr/amr_tables.h> 6151974Smsmith 6251974Smsmith#define AMR_CDEV_MAJOR 132 6351974Smsmith 6465245Smsmithstatic d_open_t amr_open; 6565245Smsmithstatic d_close_t amr_close; 6665245Smsmithstatic d_ioctl_t amr_ioctl; 6765245Smsmith 6851974Smsmithstatic struct cdevsw amr_cdevsw = { 6951974Smsmith /* open */ amr_open, 7051974Smsmith /* close */ amr_close, 7151974Smsmith /* read */ noread, 7251974Smsmith /* write */ nowrite, 7351974Smsmith /* ioctl */ amr_ioctl, 7451974Smsmith /* poll */ nopoll, 7551974Smsmith /* mmap */ nommap, 7651974Smsmith /* strategy */ nostrategy, 7751974Smsmith /* name */ "amr", 7851974Smsmith /* maj */ AMR_CDEV_MAJOR, 7951974Smsmith /* dump */ nodump, 8051974Smsmith /* psize */ nopsize, 8151974Smsmith /* flags */ 0, 8251974Smsmith /* bmaj */ 254 /* XXX magic no-bdev */ 8351974Smsmith}; 8451974Smsmith 8565245Smsmith/* 8665245Smsmith * Initialisation, bus interface. 8765245Smsmith */ 8865245Smsmithstatic void amr_startup(void *arg); 8951974Smsmith 9051974Smsmith/* 9151974Smsmith * Command wrappers 9251974Smsmith */ 9365245Smsmithstatic int amr_query_controller(struct amr_softc *sc); 9465245Smsmithstatic void *amr_enquiry(struct amr_softc *sc, size_t bufsize, 9565245Smsmith u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual); 9665245Smsmithstatic void amr_completeio(struct amr_command *ac); 9751974Smsmith 9851974Smsmith/* 9965245Smsmith * Command buffer allocation. 10051974Smsmith */ 10165245Smsmithstatic void amr_alloccmd_cluster(struct amr_softc *sc); 10265245Smsmithstatic void amr_freecmd_cluster(struct amr_command_cluster *acc); 10351974Smsmith 10451974Smsmith/* 10565245Smsmith * Command processing. 10651974Smsmith */ 10765245Smsmithstatic int amr_bio_command(struct amr_softc *sc, struct amr_command **acp); 10865245Smsmithstatic int amr_wait_command(struct amr_command *ac); 10965245Smsmithstatic int amr_poll_command(struct amr_command *ac); 11065245Smsmithstatic int amr_getslot(struct amr_command *ac); 11165245Smsmithstatic void amr_mapcmd(struct amr_command *ac); 11265245Smsmithstatic void amr_unmapcmd(struct amr_command *ac); 11365245Smsmithstatic int amr_start(struct amr_command *ac); 11465245Smsmithstatic void amr_complete(void *context, int pending); 11551974Smsmith 11651974Smsmith/* 11758883Smsmith * Status monitoring 11858883Smsmith */ 11965245Smsmithstatic void amr_periodic(void *data); 12058883Smsmith 12158883Smsmith/* 12251974Smsmith * Interface-specific shims 12351974Smsmith */ 12465245Smsmithstatic int amr_quartz_submit_command(struct amr_softc *sc); 12565245Smsmithstatic int amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave); 12651974Smsmith 12765245Smsmithstatic int amr_std_submit_command(struct amr_softc *sc); 12865245Smsmithstatic int amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave); 12965245Smsmithstatic void amr_std_attach_mailbox(struct amr_softc *sc); 13051974Smsmith 13165245Smsmith#ifdef AMR_BOARD_INIT 13265245Smsmithstatic int amr_quartz_init(struct amr_softc *sc); 13365245Smsmithstatic int amr_std_init(struct amr_softc *sc); 13465245Smsmith#endif 13565245Smsmith 13651974Smsmith/* 13751974Smsmith * Debugging 13851974Smsmith */ 13965245Smsmithstatic void amr_describe_controller(struct amr_softc *sc); 14065245Smsmith#ifdef AMR_DEBUG 14165245Smsmithstatic void amr_printcommand(struct amr_command *ac); 14265245Smsmith#endif 14351974Smsmith 14451974Smsmith/******************************************************************************** 14551974Smsmith ******************************************************************************** 14665245Smsmith Inline Glue 14751974Smsmith ******************************************************************************** 14851974Smsmith ********************************************************************************/ 14951974Smsmith 15051974Smsmith/******************************************************************************** 15165245Smsmith ******************************************************************************** 15265245Smsmith Public Interfaces 15365245Smsmith ******************************************************************************** 15465245Smsmith ********************************************************************************/ 15551974Smsmith 15651974Smsmith/******************************************************************************** 15751974Smsmith * Initialise the controller and softc. 15851974Smsmith */ 15951974Smsmithint 16051974Smsmithamr_attach(struct amr_softc *sc) 16151974Smsmith{ 16251974Smsmith 16365245Smsmith debug_called(1); 16465245Smsmith 16551974Smsmith /* 16651974Smsmith * Initialise per-controller queues. 16751974Smsmith */ 16865245Smsmith TAILQ_INIT(&sc->amr_completed); 16951974Smsmith TAILQ_INIT(&sc->amr_freecmds); 17065245Smsmith TAILQ_INIT(&sc->amr_cmd_clusters); 17165245Smsmith TAILQ_INIT(&sc->amr_ready); 17259249Sphk bioq_init(&sc->amr_bioq); 17351974Smsmith 17465245Smsmith#if __FreeBSD_version >= 500005 17551974Smsmith /* 17665245Smsmith * Initialise command-completion task. 17765245Smsmith */ 17865245Smsmith TASK_INIT(&sc->amr_task_complete, 0, amr_complete, sc); 17965245Smsmith#endif 18065245Smsmith 18165245Smsmith debug(2, "queue init done"); 18265245Smsmith 18365245Smsmith /* 18451974Smsmith * Configure for this controller type. 18551974Smsmith */ 18665245Smsmith if (AMR_IS_QUARTZ(sc)) { 18751974Smsmith sc->amr_submit_command = amr_quartz_submit_command; 18851974Smsmith sc->amr_get_work = amr_quartz_get_work; 18951974Smsmith } else { 19051974Smsmith sc->amr_submit_command = amr_std_submit_command; 19151974Smsmith sc->amr_get_work = amr_std_get_work; 19265245Smsmith amr_std_attach_mailbox(sc);; 19351974Smsmith } 19451974Smsmith 19565245Smsmith#ifdef AMR_BOARD_INIT 19665245Smsmith if ((AMR_IS_QUARTZ(sc) ? amr_quartz_init(sc) : amr_std_init(sc)))) 19765245Smsmith return(ENXIO); 19865245Smsmith#endif 19951974Smsmith 20051974Smsmith /* 20165245Smsmith * Quiz controller for features and limits. 20251974Smsmith */ 20365245Smsmith if (amr_query_controller(sc)) 20465245Smsmith return(ENXIO); 20551974Smsmith 20665245Smsmith debug(2, "controller query complete"); 20751974Smsmith 20865245Smsmith#ifdef AMR_SCSI_PASSTHROUGH 20951974Smsmith /* 21065245Smsmith * Attach our 'real' SCSI channels to CAM. 21151974Smsmith */ 21265245Smsmith if (amr_cam_attach(sc)) 21351974Smsmith return(ENXIO); 21465245Smsmith debug(2, "CAM attach done"); 21565245Smsmith#endif 21651974Smsmith 21751974Smsmith /* 21865245Smsmith * Create the control device. 21951974Smsmith */ 22065245Smsmith sc->amr_dev_t = make_dev(&amr_cdevsw, device_get_unit(sc->amr_dev), UID_ROOT, GID_OPERATOR, 22165245Smsmith S_IRUSR | S_IWUSR, "amr%d", device_get_unit(sc->amr_dev)); 22265245Smsmith sc->amr_dev_t->si_drv1 = sc; 22351974Smsmith 22451974Smsmith /* 22565245Smsmith * Schedule ourselves to bring the controller up once interrupts are 22665245Smsmith * available. 22751974Smsmith */ 22865245Smsmith bzero(&sc->amr_ich, sizeof(struct intr_config_hook)); 22965245Smsmith sc->amr_ich.ich_func = amr_startup; 23065245Smsmith sc->amr_ich.ich_arg = sc; 23165245Smsmith if (config_intrhook_establish(&sc->amr_ich) != 0) { 23265245Smsmith device_printf(sc->amr_dev, "can't establish configuration hook\n"); 23365245Smsmith return(ENOMEM); 23465245Smsmith } 23551974Smsmith 23658883Smsmith /* 23765245Smsmith * Print a little information about the controller. 23858883Smsmith */ 23965245Smsmith amr_describe_controller(sc); 24058883Smsmith 24165245Smsmith debug(2, "attach complete"); 24251974Smsmith return(0); 24351974Smsmith} 24451974Smsmith 24551974Smsmith/******************************************************************************** 24651974Smsmith * Locate disk resources and attach children to them. 24751974Smsmith */ 24865245Smsmithstatic void 24965245Smsmithamr_startup(void *arg) 25051974Smsmith{ 25165245Smsmith struct amr_softc *sc = (struct amr_softc *)arg; 25251974Smsmith struct amr_logdrive *dr; 25351974Smsmith int i, error; 25451974Smsmith 25565245Smsmith debug_called(1); 25651974Smsmith 25765245Smsmith /* pull ourselves off the intrhook chain */ 25865245Smsmith config_intrhook_disestablish(&sc->amr_ich); 25965245Smsmith 26051974Smsmith /* get up-to-date drive information */ 26151974Smsmith if (amr_query_controller(sc)) { 26265245Smsmith device_printf(sc->amr_dev, "can't scan controller for drives\n"); 26351974Smsmith return; 26451974Smsmith } 26551974Smsmith 26651974Smsmith /* iterate over available drives */ 26751974Smsmith for (i = 0, dr = &sc->amr_drive[0]; (i < AMR_MAXLD) && (dr->al_size != 0xffffffff); i++, dr++) { 26851974Smsmith /* are we already attached to this drive? */ 26951974Smsmith if (dr->al_disk == 0) { 27051974Smsmith /* generate geometry information */ 27151974Smsmith if (dr->al_size > 0x200000) { /* extended translation? */ 27251974Smsmith dr->al_heads = 255; 27351974Smsmith dr->al_sectors = 63; 27451974Smsmith } else { 27551974Smsmith dr->al_heads = 64; 27651974Smsmith dr->al_sectors = 32; 27751974Smsmith } 27851974Smsmith dr->al_cylinders = dr->al_size / (dr->al_heads * dr->al_sectors); 27951974Smsmith 28054073Smdodd dr->al_disk = device_add_child(sc->amr_dev, NULL, -1); 28151974Smsmith if (dr->al_disk == 0) 28251974Smsmith device_printf(sc->amr_dev, "device_add_child failed\n"); 28354073Smdodd device_set_ivars(dr->al_disk, dr); 28451974Smsmith } 28551974Smsmith } 28651974Smsmith 28751974Smsmith if ((error = bus_generic_attach(sc->amr_dev)) != 0) 28851974Smsmith device_printf(sc->amr_dev, "bus_generic_attach returned %d\n", error); 28951974Smsmith 29051974Smsmith /* mark controller back up */ 29151974Smsmith sc->amr_state &= ~AMR_STATE_SHUTDOWN; 29251974Smsmith 29351974Smsmith /* interrupts will be enabled before we do anything more */ 29451974Smsmith sc->amr_state |= AMR_STATE_INTEN; 29551974Smsmith 29651974Smsmith /* 29765245Smsmith * Start the timeout routine. 29851974Smsmith */ 29965245Smsmith/* sc->amr_timeout = timeout(amr_periodic, sc, hz);*/ 30051974Smsmith 30165245Smsmith return; 30251974Smsmith} 30351974Smsmith 30465245Smsmith/******************************************************************************* 30565245Smsmith * Free resources associated with a controller instance 30651974Smsmith */ 30765245Smsmithvoid 30865245Smsmithamr_free(struct amr_softc *sc) 30951974Smsmith{ 31065245Smsmith struct amr_command_cluster *acc; 31151974Smsmith 31265245Smsmith#ifdef AMR_SCSI_PASSTHROUGH 31365245Smsmith /* detach from CAM */ 31465245Smsmith amr_cam_detach(sc); 31565245Smsmith#endif 31651974Smsmith 31765245Smsmith /* cancel status timeout */ 31865245Smsmith untimeout(amr_periodic, sc, sc->amr_timeout); 31951974Smsmith 32065245Smsmith /* throw away any command buffers */ 32165245Smsmith while ((acc = TAILQ_FIRST(&sc->amr_cmd_clusters)) != NULL) { 32265245Smsmith TAILQ_REMOVE(&sc->amr_cmd_clusters, acc, acc_link); 32365245Smsmith amr_freecmd_cluster(acc); 32451974Smsmith } 32551974Smsmith} 32651974Smsmith 32751974Smsmith/******************************************************************************* 32865245Smsmith * Receive a bio structure from a child device and queue it on a particular 32951974Smsmith * disk resource, then poke the disk resource to start as much work as it can. 33051974Smsmith */ 33151974Smsmithint 33265245Smsmithamr_submit_bio(struct amr_softc *sc, struct bio *bio) 33351974Smsmith{ 33465245Smsmith debug_called(2); 33552543Smsmith 33665245Smsmith amr_enqueue_bio(sc, bio); 33751974Smsmith amr_startio(sc); 33851974Smsmith return(0); 33951974Smsmith} 34051974Smsmith 34151974Smsmith/******************************************************************************** 34251974Smsmith * Accept an open operation on the control device. 34351974Smsmith */ 34451974Smsmithint 34551974Smsmithamr_open(dev_t dev, int flags, int fmt, struct proc *p) 34651974Smsmith{ 34751974Smsmith int unit = minor(dev); 34851974Smsmith struct amr_softc *sc = devclass_get_softc(amr_devclass, unit); 34951974Smsmith 35065245Smsmith debug_called(1); 35165245Smsmith 35251974Smsmith sc->amr_state |= AMR_STATE_OPEN; 35351974Smsmith return(0); 35451974Smsmith} 35551974Smsmith 35651974Smsmith/******************************************************************************** 35751974Smsmith * Accept the last close on the control device. 35851974Smsmith */ 35951974Smsmithint 36051974Smsmithamr_close(dev_t dev, int flags, int fmt, struct proc *p) 36151974Smsmith{ 36251974Smsmith int unit = minor(dev); 36351974Smsmith struct amr_softc *sc = devclass_get_softc(amr_devclass, unit); 36451974Smsmith 36565245Smsmith debug_called(1); 36665245Smsmith 36751974Smsmith sc->amr_state &= ~AMR_STATE_OPEN; 36851974Smsmith return (0); 36951974Smsmith} 37051974Smsmith 37151974Smsmith/******************************************************************************** 37251974Smsmith * Handle controller-specific control operations. 37351974Smsmith */ 37451974Smsmithint 37551974Smsmithamr_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, struct proc *p) 37651974Smsmith{ 37765245Smsmith struct amr_softc *sc = (struct amr_softc *)dev->si_drv1; 37865245Smsmith int *arg = (int *)addr; 37965245Smsmith struct amr_user_ioctl *au = (struct amr_user_ioctl *)addr; 38065245Smsmith struct amr_command *ac; 38165245Smsmith struct amr_mailbox_ioctl *mbi; 38265245Smsmith struct amr_passthrough *ap; 38365245Smsmith void *dp; 38465245Smsmith int error; 38565245Smsmith 38665245Smsmith debug_called(1); 38765245Smsmith 38865245Smsmith error = 0; 38965245Smsmith dp = NULL; 39065245Smsmith ap = NULL; 39165245Smsmith ac = NULL; 39251974Smsmith switch(cmd) { 39365245Smsmith 39465245Smsmith case AMR_IO_VERSION: 39565245Smsmith debug(1, "AMR_IO_VERSION"); 39665245Smsmith *arg = AMR_IO_VERSION_NUMBER; 39765245Smsmith break; 39865245Smsmith 39965245Smsmith case AMR_IO_COMMAND: 40065245Smsmith debug(1, "AMR_IO_COMMAND"); 40165245Smsmith /* handle inbound data buffer */ 40265245Smsmith if (au->au_length != 0) { 40365245Smsmith if ((dp = malloc(au->au_length, M_DEVBUF, M_WAITOK)) == NULL) { 40465245Smsmith error = ENOMEM; 40565245Smsmith break; 40665245Smsmith } 40765245Smsmith if ((error = copyin(au->au_buffer, dp, au->au_length)) != 0) 40865245Smsmith break; 40965245Smsmith } 41065245Smsmith 41165245Smsmith if ((ac = amr_alloccmd(sc)) == NULL) { 41265245Smsmith error = ENOMEM; 41365245Smsmith break; 41465245Smsmith } 41565245Smsmith 41665245Smsmith /* handle SCSI passthrough command */ 41765245Smsmith if (au->au_cmd[0] == AMR_CMD_PASS) { 41865245Smsmith if ((ap = malloc(sizeof(*ap), M_DEVBUF, M_WAITOK)) == NULL) { 41965245Smsmith error = ENOMEM; 42065245Smsmith break; 42165245Smsmith } 42265245Smsmith bzero(ap, sizeof(*ap)); 42365245Smsmith 42465245Smsmith /* copy cdb */ 42565245Smsmith ap->ap_cdb_length = au->au_cmd[2]; 42665245Smsmith bcopy(&au->au_cmd[3], &ap->ap_cdb[0], ap->ap_cdb_length); 42765245Smsmith 42865245Smsmith /* build passthrough */ 42965245Smsmith ap->ap_timeout = au->au_cmd[ap->ap_cdb_length + 3] & 0x07; 43065245Smsmith ap->ap_ars = (au->au_cmd[ap->ap_cdb_length + 3] & 0x08) ? 1 : 0; 43165245Smsmith ap->ap_islogical = (au->au_cmd[ap->ap_cdb_length + 3] & 0x80) ? 1 : 0; 43265245Smsmith ap->ap_logical_drive_no = au->au_cmd[ap->ap_cdb_length + 4]; 43365245Smsmith ap->ap_channel = au->au_cmd[ap->ap_cdb_length + 5]; 43465245Smsmith ap->ap_scsi_id = au->au_cmd[ap->ap_cdb_length + 6]; 43565245Smsmith ap->ap_request_sense_length = 14; 43665245Smsmith /* XXX what about the request-sense area? does the caller want it? */ 43765245Smsmith 43865245Smsmith /* build command */ 43965245Smsmith ac->ac_data = ap; 44065245Smsmith ac->ac_length = sizeof(*ap); 44165245Smsmith ac->ac_flags |= AMR_CMD_DATAOUT; 44265245Smsmith ac->ac_ccb_data = dp; 44365245Smsmith ac->ac_ccb_length = au->au_length; 44465245Smsmith if (au->au_direction & AMR_IO_READ) 44565245Smsmith ac->ac_flags |= AMR_CMD_CCB_DATAIN; 44665245Smsmith if (au->au_direction & AMR_IO_WRITE) 44765245Smsmith ac->ac_flags |= AMR_CMD_CCB_DATAOUT; 44865245Smsmith 44965245Smsmith ac->ac_mailbox.mb_command = AMR_CMD_PASS; 45065245Smsmith 45165245Smsmith } else { 45265245Smsmith /* direct command to controller */ 45365245Smsmith mbi = (struct amr_mailbox_ioctl *)&ac->ac_mailbox; 45465245Smsmith 45565245Smsmith /* copy pertinent mailbox items */ 45665245Smsmith mbi->mb_command = au->au_cmd[0]; 45765245Smsmith mbi->mb_channel = au->au_cmd[1]; 45865245Smsmith mbi->mb_param = au->au_cmd[2]; 45965245Smsmith mbi->mb_pad[0] = au->au_cmd[3]; 46065245Smsmith mbi->mb_drive = au->au_cmd[4]; 46165245Smsmith 46265245Smsmith /* build the command */ 46365245Smsmith ac->ac_data = dp; 46465245Smsmith ac->ac_length = au->au_length; 46565245Smsmith if (au->au_direction & AMR_IO_READ) 46665245Smsmith ac->ac_flags |= AMR_CMD_DATAIN; 46765245Smsmith if (au->au_direction & AMR_IO_WRITE) 46865245Smsmith ac->ac_flags |= AMR_CMD_DATAOUT; 46965245Smsmith } 47065245Smsmith 47165245Smsmith /* run the command */ 47265245Smsmith if ((error = amr_wait_command(ac)) != 0) 47365245Smsmith break; 47465245Smsmith 47565245Smsmith /* copy out data and set status */ 47665245Smsmith if (au->au_length != 0) 47765245Smsmith error = copyout(dp, au->au_buffer, au->au_length); 47865245Smsmith au->au_status = ac->ac_status; 47965245Smsmith break; 48065245Smsmith 48165245Smsmith default: 48265245Smsmith debug(1, "unknown ioctl 0x%lx", cmd); 48365245Smsmith error = ENOIOCTL; 48465245Smsmith break; 48551974Smsmith } 48651974Smsmith 48765245Smsmith if (dp != NULL) 48865245Smsmith free(dp, M_DEVBUF); 48965245Smsmith if (ap != NULL) 49065245Smsmith free(ap, M_DEVBUF); 49165245Smsmith if (ac != NULL) 49265245Smsmith amr_releasecmd(ac); 49365245Smsmith return(error); 49451974Smsmith} 49551974Smsmith 49651974Smsmith/******************************************************************************** 49751974Smsmith ******************************************************************************** 49858883Smsmith Status Monitoring 49958883Smsmith ******************************************************************************** 50058883Smsmith ********************************************************************************/ 50158883Smsmith 50258883Smsmith/******************************************************************************** 50358883Smsmith * Perform a periodic check of the controller status 50458883Smsmith */ 50558883Smsmithstatic void 50658883Smsmithamr_periodic(void *data) 50758883Smsmith{ 50858883Smsmith struct amr_softc *sc = (struct amr_softc *)data; 50958883Smsmith 51065245Smsmith debug_called(2); 51158883Smsmith 51265245Smsmith /* XXX perform periodic status checks here */ 51358883Smsmith 51465245Smsmith /* compensate for missed interrupts */ 51565245Smsmith amr_done(sc); 51665245Smsmith 51758883Smsmith /* reschedule */ 51858883Smsmith sc->amr_timeout = timeout(amr_periodic, sc, hz); 51958883Smsmith} 52058883Smsmith 52158883Smsmith/******************************************************************************** 52258883Smsmith ******************************************************************************** 52351974Smsmith Command Wrappers 52451974Smsmith ******************************************************************************** 52551974Smsmith ********************************************************************************/ 52651974Smsmith 52751974Smsmith/******************************************************************************** 52851974Smsmith * Interrogate the controller for the operational parameters we require. 52951974Smsmith */ 53051974Smsmithstatic int 53151974Smsmithamr_query_controller(struct amr_softc *sc) 53251974Smsmith{ 53365245Smsmith struct amr_enquiry3 *aex; 53465245Smsmith struct amr_prodinfo *ap; 53565245Smsmith struct amr_enquiry *ae; 53665245Smsmith int ldrv; 53751974Smsmith 53865245Smsmith /* 53965245Smsmith * If we haven't found the real limit yet, let us have a couple of commands in 54065245Smsmith * order to be able to probe. 54165245Smsmith */ 54265245Smsmith if (sc->amr_maxio == 0) 54365245Smsmith sc->amr_maxio = 2; 54451974Smsmith 54565245Smsmith /* 54665245Smsmith * Try to issue an ENQUIRY3 command 54765245Smsmith */ 54865245Smsmith if ((aex = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_ENQ3, 54965245Smsmith AMR_CONFIG_ENQ3_SOLICITED_FULL)) != NULL) { 55051974Smsmith 55165245Smsmith /* 55265245Smsmith * Fetch current state of logical drives. 55365245Smsmith */ 55465245Smsmith for (ldrv = 0; ldrv < aex->ae_numldrives; ldrv++) { 55565245Smsmith sc->amr_drive[ldrv].al_size = aex->ae_drivesize[ldrv]; 55665245Smsmith sc->amr_drive[ldrv].al_state = aex->ae_drivestate[ldrv]; 55765245Smsmith sc->amr_drive[ldrv].al_properties = aex->ae_driveprop[ldrv]; 55865245Smsmith debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size, 55965245Smsmith sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties); 56051974Smsmith } 56165245Smsmith free(aex, M_DEVBUF); 56258883Smsmith 56365245Smsmith /* 56465245Smsmith * Get product info for channel count. 56558883Smsmith */ 56665245Smsmith if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0)) == NULL) { 56765245Smsmith device_printf(sc->amr_dev, "can't obtain product data from controller\n"); 56865245Smsmith return(1); 56965245Smsmith } 57065245Smsmith sc->amr_maxdrives = 40; 57165245Smsmith sc->amr_maxchan = ap->ap_nschan; 57265245Smsmith sc->amr_maxio = ap->ap_maxio; 57365245Smsmith sc->amr_type |= AMR_TYPE_40LD; 57465245Smsmith free(ap, M_DEVBUF); 57558883Smsmith 57665245Smsmith } else { 57765245Smsmith 57865245Smsmith /* failed, try the 8LD ENQUIRY commands */ 57965245Smsmith if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0)) == NULL) { 58065245Smsmith if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0)) == NULL) { 58165245Smsmith device_printf(sc->amr_dev, "can't obtain configuration data from controller\n"); 58265245Smsmith return(1); 58365245Smsmith } 58465245Smsmith ae->ae_signature = 0; 58551974Smsmith } 58665245Smsmith 58758883Smsmith /* 58865245Smsmith * Fetch current state of logical drives. 58958883Smsmith */ 59065245Smsmith for (ldrv = 0; ldrv < ae->ae_ldrv.al_numdrives; ldrv++) { 59165245Smsmith sc->amr_drive[ldrv].al_size = ae->ae_ldrv.al_size[ldrv]; 59265245Smsmith sc->amr_drive[ldrv].al_state = ae->ae_ldrv.al_state[ldrv]; 59365245Smsmith sc->amr_drive[ldrv].al_properties = ae->ae_ldrv.al_properties[ldrv]; 59465245Smsmith debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size, 59565245Smsmith sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties); 59651974Smsmith } 59765245Smsmith 59865245Smsmith sc->amr_maxdrives = 8; 59965245Smsmith sc->amr_maxchan = ae->ae_adapter.aa_channels; 60065245Smsmith sc->amr_maxio = ae->ae_adapter.aa_maxio; 60165245Smsmith free(ae, M_DEVBUF); 60251974Smsmith } 60365245Smsmith 60465245Smsmith /* 60565245Smsmith * Mark remaining drives as unused. 60665245Smsmith */ 60765245Smsmith for (; ldrv < AMR_MAXLD; ldrv++) 60865245Smsmith sc->amr_drive[ldrv].al_size = 0xffffffff; 60965245Smsmith 61065245Smsmith /* 61165245Smsmith * Cap the maximum number of outstanding I/Os. AMI's Linux driver doesn't trust 61265245Smsmith * the controller's reported value, and lockups have been seen when we do. 61365245Smsmith */ 61465245Smsmith sc->amr_maxio = imin(sc->amr_maxio, AMR_LIMITCMD); 61565245Smsmith 61651974Smsmith return(0); 61751974Smsmith} 61851974Smsmith 61951974Smsmith/******************************************************************************** 62051974Smsmith * Run a generic enquiry-style command. 62151974Smsmith */ 62251974Smsmithstatic void * 62351974Smsmithamr_enquiry(struct amr_softc *sc, size_t bufsize, u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual) 62451974Smsmith{ 62551974Smsmith struct amr_command *ac; 62651974Smsmith void *result; 62751974Smsmith u_int8_t *mbox; 62851974Smsmith int error; 62951974Smsmith 63065245Smsmith debug_called(1); 63151974Smsmith 63251974Smsmith error = 1; 63351974Smsmith result = NULL; 63451974Smsmith 63551974Smsmith /* get ourselves a command buffer */ 63651974Smsmith if ((ac = amr_alloccmd(sc)) == NULL) 63751974Smsmith goto out; 63851974Smsmith /* allocate the response structure */ 63951974Smsmith if ((result = malloc(bufsize, M_DEVBUF, M_NOWAIT)) == NULL) 64051974Smsmith goto out; 64165245Smsmith /* set command flags */ 64251974Smsmith ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT; 64351974Smsmith 64465245Smsmith /* point the command at our data */ 64551974Smsmith ac->ac_data = result; 64651974Smsmith ac->ac_length = bufsize; 64751974Smsmith 64851974Smsmith /* build the command proper */ 64951974Smsmith mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */ 65051974Smsmith mbox[0] = cmd; 65151974Smsmith mbox[2] = cmdsub; 65251974Smsmith mbox[3] = cmdqual; 65351974Smsmith 65458883Smsmith /* can't assume that interrupts are going to work here, so play it safe */ 65558883Smsmith if (amr_poll_command(ac)) 65651974Smsmith goto out; 65751974Smsmith error = ac->ac_status; 65851974Smsmith 65951974Smsmith out: 66051974Smsmith if (ac != NULL) 66151974Smsmith amr_releasecmd(ac); 66251974Smsmith if ((error != 0) && (result != NULL)) { 66351974Smsmith free(result, M_DEVBUF); 66451974Smsmith result = NULL; 66551974Smsmith } 66651974Smsmith return(result); 66751974Smsmith} 66851974Smsmith 66951974Smsmith/******************************************************************************** 67051974Smsmith * Flush the controller's internal cache, return status. 67151974Smsmith */ 67265245Smsmithint 67351974Smsmithamr_flush(struct amr_softc *sc) 67451974Smsmith{ 67551974Smsmith struct amr_command *ac; 67651974Smsmith int error; 67751974Smsmith 67851974Smsmith /* get ourselves a command buffer */ 67951974Smsmith error = 1; 68051974Smsmith if ((ac = amr_alloccmd(sc)) == NULL) 68151974Smsmith goto out; 68265245Smsmith /* set command flags */ 68351974Smsmith ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT; 68451974Smsmith 68551974Smsmith /* build the command proper */ 68651974Smsmith ac->ac_mailbox.mb_command = AMR_CMD_FLUSH; 68751974Smsmith 68858883Smsmith /* we have to poll, as the system may be going down or otherwise damaged */ 68958883Smsmith if (amr_poll_command(ac)) 69051974Smsmith goto out; 69151974Smsmith error = ac->ac_status; 69251974Smsmith 69351974Smsmith out: 69451974Smsmith if (ac != NULL) 69551974Smsmith amr_releasecmd(ac); 69651974Smsmith return(error); 69751974Smsmith} 69851974Smsmith 69951974Smsmith/******************************************************************************** 70065245Smsmith * Try to find I/O work for the controller from one or more of the work queues. 70151974Smsmith * 70265245Smsmith * We make the assumption that if the controller is not ready to take a command 70365245Smsmith * at some given time, it will generate an interrupt at some later time when 70465245Smsmith * it is. 70551974Smsmith */ 70665245Smsmithvoid 70751974Smsmithamr_startio(struct amr_softc *sc) 70851974Smsmith{ 70951974Smsmith struct amr_command *ac; 71051974Smsmith 71151974Smsmith /* spin until something prevents us from doing any work */ 71251974Smsmith for (;;) { 71351974Smsmith 71465245Smsmith /* try to get a ready command */ 71565245Smsmith ac = amr_dequeue_ready(sc); 71651974Smsmith 71765245Smsmith /* if that failed, build a command from a bio */ 71865245Smsmith if (ac == NULL) 71965245Smsmith (void)amr_bio_command(sc, &ac); 72051974Smsmith 72165245Smsmith#ifdef AMR_SCSI_PASSTHROUGH 72265245Smsmith /* if that failed, build a command from a ccb */ 72365245Smsmith if (ac == NULL) 72465245Smsmith (void)amr_cam_command(sc, &ac); 72565245Smsmith#endif 72665245Smsmith 72765245Smsmith /* if we don't have anything to do, give up */ 72865245Smsmith if (ac == NULL) 72965245Smsmith break; 73051974Smsmith 73165245Smsmith /* try to give the command to the controller; if this fails save it for later and give up */ 73265245Smsmith if (amr_start(ac)) { 73365245Smsmith debug(2, "controller busy, command deferred"); 73465245Smsmith amr_requeue_ready(ac); /* XXX schedule retry very soon? */ 73565245Smsmith break; 73651974Smsmith } 73751974Smsmith } 73851974Smsmith} 73951974Smsmith 74051974Smsmith/******************************************************************************** 74151974Smsmith * Handle completion of an I/O command. 74251974Smsmith */ 74351974Smsmithstatic void 74451974Smsmithamr_completeio(struct amr_command *ac) 74551974Smsmith{ 74651974Smsmith struct amr_softc *sc = ac->ac_sc; 74751974Smsmith 74851974Smsmith if (ac->ac_status != AMR_STATUS_SUCCESS) { /* could be more verbose here? */ 74965245Smsmith ac->ac_bio->bio_error = EIO; 75065245Smsmith ac->ac_bio->bio_flags |= BIO_ERROR; 75151974Smsmith 75265245Smsmith device_printf(sc->amr_dev, "I/O error - 0x%x\n", ac->ac_status); 75365245Smsmith/* amr_printcommand(ac);*/ 75451974Smsmith } 75565245Smsmith amrd_intr(ac->ac_bio); 75665245Smsmith amr_releasecmd(ac); 75751974Smsmith} 75851974Smsmith 75951974Smsmith/******************************************************************************** 76051974Smsmith ******************************************************************************** 76151974Smsmith Command Processing 76251974Smsmith ******************************************************************************** 76351974Smsmith ********************************************************************************/ 76451974Smsmith 76551974Smsmith/******************************************************************************** 76665245Smsmith * Convert a bio off the top of the bio queue into a command. 76765245Smsmith */ 76865245Smsmithstatic int 76965245Smsmithamr_bio_command(struct amr_softc *sc, struct amr_command **acp) 77065245Smsmith{ 77165245Smsmith struct amr_command *ac; 77265245Smsmith struct amrd_softc *amrd; 77365245Smsmith struct bio *bio; 77465245Smsmith int error; 77565245Smsmith int blkcount; 77665245Smsmith int driveno; 77765245Smsmith int cmd; 77865245Smsmith 77965245Smsmith ac = NULL; 78065245Smsmith error = 0; 78165245Smsmith 78265245Smsmith /* get a bio to work on */ 78365245Smsmith if ((bio = amr_dequeue_bio(sc)) == NULL) 78465245Smsmith goto out; 78565245Smsmith 78665245Smsmith /* get a command */ 78765245Smsmith if ((ac = amr_alloccmd(sc)) == NULL) { 78865245Smsmith error = ENOMEM; 78965245Smsmith goto out; 79065245Smsmith } 79165245Smsmith 79265245Smsmith /* connect the bio to the command */ 79365245Smsmith ac->ac_complete = amr_completeio; 79465245Smsmith ac->ac_bio = bio; 79565245Smsmith ac->ac_data = bio->bio_data; 79665245Smsmith ac->ac_length = bio->bio_bcount; 79765245Smsmith if (BIO_IS_READ(bio)) { 79865245Smsmith ac->ac_flags |= AMR_CMD_DATAIN; 79965245Smsmith cmd = AMR_CMD_LREAD; 80065245Smsmith } else { 80165245Smsmith ac->ac_flags |= AMR_CMD_DATAOUT; 80265245Smsmith cmd = AMR_CMD_LWRITE; 80365245Smsmith } 80465245Smsmith amrd = (struct amrd_softc *)bio->bio_dev->si_drv1; 80565245Smsmith driveno = amrd->amrd_drive - sc->amr_drive; 80665245Smsmith blkcount = (bio->bio_bcount + AMR_BLKSIZE - 1) / AMR_BLKSIZE; 80765245Smsmith 80865245Smsmith ac->ac_mailbox.mb_command = cmd; 80965245Smsmith ac->ac_mailbox.mb_blkcount = blkcount; 81065245Smsmith ac->ac_mailbox.mb_lba = bio->bio_pblkno; 81165245Smsmith ac->ac_mailbox.mb_drive = driveno; 81265245Smsmith /* we fill in the s/g related data when the command is mapped */ 81365245Smsmith 81465245Smsmith if ((bio->bio_pblkno + blkcount) > sc->amr_drive[driveno].al_size) 81565245Smsmith device_printf(sc->amr_dev, "I/O beyond end of unit (%u,%d > %u)\n", 81665245Smsmith bio->bio_pblkno, blkcount, sc->amr_drive[driveno].al_size); 81765245Smsmith 81865245Smsmithout: 81965245Smsmith if (error != 0) { 82065245Smsmith if (ac != NULL) 82165245Smsmith amr_releasecmd(ac); 82265245Smsmith if (bio != NULL) /* this breaks ordering... */ 82365245Smsmith amr_enqueue_bio(sc, bio); 82465245Smsmith } 82565245Smsmith *acp = ac; 82665245Smsmith return(error); 82765245Smsmith} 82865245Smsmith 82965245Smsmith/******************************************************************************** 83051974Smsmith * Take a command, submit it to the controller and sleep until it completes 83151974Smsmith * or fails. Interrupts must be enabled, returns nonzero on error. 83251974Smsmith */ 83351974Smsmithstatic int 83451974Smsmithamr_wait_command(struct amr_command *ac) 83551974Smsmith{ 83651974Smsmith struct amr_softc *sc = ac->ac_sc; 83751974Smsmith int error, count; 83851974Smsmith 83965245Smsmith debug_called(1); 84051974Smsmith 84151974Smsmith ac->ac_complete = NULL; 84265245Smsmith ac->ac_flags |= AMR_CMD_SLEEP; 84351974Smsmith if ((error = amr_start(ac)) != 0) 84451974Smsmith return(error); 84551974Smsmith 84651974Smsmith count = 0; 84751974Smsmith /* XXX better timeout? */ 84865245Smsmith while ((ac->ac_flags & AMR_CMD_BUSY) && (count < 30)) { 84965245Smsmith tsleep(ac, PRIBIO | PCATCH, "amrwcmd", hz); 85051974Smsmith } 85151974Smsmith 85251974Smsmith if (ac->ac_status != 0) { 85365245Smsmith device_printf(sc->amr_dev, "I/O error - 0x%x\n", ac->ac_status); 85451974Smsmith return(EIO); 85551974Smsmith } 85651974Smsmith return(0); 85751974Smsmith} 85851974Smsmith 85951974Smsmith/******************************************************************************** 86051974Smsmith * Take a command, submit it to the controller and busy-wait for it to return. 86151974Smsmith * Returns nonzero on error. Can be safely called with interrupts enabled. 86251974Smsmith */ 86351974Smsmithstatic int 86451974Smsmithamr_poll_command(struct amr_command *ac) 86551974Smsmith{ 86651974Smsmith struct amr_softc *sc = ac->ac_sc; 86765245Smsmith int error, count; 86851974Smsmith 86965245Smsmith debug_called(2); 87051974Smsmith 87151974Smsmith ac->ac_complete = NULL; 87251974Smsmith if ((error = amr_start(ac)) != 0) 87351974Smsmith return(error); 87451974Smsmith 87551974Smsmith count = 0; 87651974Smsmith do { 87751974Smsmith /* 87851974Smsmith * Poll for completion, although the interrupt handler may beat us to it. 87951974Smsmith * Note that the timeout here is somewhat arbitrary. 88051974Smsmith */ 88151974Smsmith amr_done(sc); 88265245Smsmith DELAY(1000); 88365245Smsmith } while ((ac->ac_flags & AMR_CMD_BUSY) && (count++ < 1000)); 88465245Smsmith if (!(ac->ac_flags & AMR_CMD_BUSY)) { 88551974Smsmith error = 0; 88651974Smsmith } else { 88765245Smsmith /* XXX the slot is now marked permanently busy */ 88851974Smsmith error = EIO; 88965245Smsmith device_printf(sc->amr_dev, "polled command timeout\n"); 89051974Smsmith } 89151974Smsmith return(error); 89251974Smsmith} 89351974Smsmith 89451974Smsmith/******************************************************************************** 89565245Smsmith * Get a free command slot for a command if it doesn't already have one. 89665245Smsmith * 89765245Smsmith * May be safely called multiple times for a given command. 89851974Smsmith */ 89951974Smsmithstatic int 90051974Smsmithamr_getslot(struct amr_command *ac) 90151974Smsmith{ 90251974Smsmith struct amr_softc *sc = ac->ac_sc; 90365245Smsmith int s, slot, limit, error; 90451974Smsmith 90565245Smsmith debug_called(3); 90665245Smsmith 90765245Smsmith /* if the command already has a slot, don't try to give it another one */ 90865245Smsmith if (ac->ac_slot != 0) 90965245Smsmith return(0); 91065245Smsmith 91151974Smsmith /* enforce slot usage limit */ 91251974Smsmith limit = (ac->ac_flags & AMR_CMD_PRIORITY) ? sc->amr_maxio : sc->amr_maxio - 4; 91365245Smsmith if (sc->amr_busyslots > limit) 91451974Smsmith return(EBUSY); 91551974Smsmith 91651974Smsmith /* 91765245Smsmith * Allocate a slot. XXX linear scan is slow 91851974Smsmith */ 91965245Smsmith error = EBUSY; 92051974Smsmith s = splbio(); 92151974Smsmith for (slot = 0; slot < sc->amr_maxio; slot++) { 92265245Smsmith if (sc->amr_busycmd[slot] == NULL) { 92365245Smsmith sc->amr_busycmd[slot] = ac; 92465245Smsmith sc->amr_busyslots++; 92565245Smsmith ac->ac_slot = slot; 92665245Smsmith error = 0; 92751974Smsmith break; 92865245Smsmith } 92951974Smsmith } 93051974Smsmith splx(s); 93151974Smsmith 93265245Smsmith return(error); 93351974Smsmith} 93451974Smsmith 93551974Smsmith/******************************************************************************** 93665245Smsmith * Map/unmap (ac)'s data in the controller's addressable space as required. 93765245Smsmith * 93865245Smsmith * These functions may be safely called multiple times on a given command. 93951974Smsmith */ 94051974Smsmithstatic void 94151974Smsmithamr_setup_dmamap(void *arg, bus_dma_segment_t *segs, int nsegments, int error) 94251974Smsmith{ 94351974Smsmith struct amr_command *ac = (struct amr_command *)arg; 94451974Smsmith struct amr_softc *sc = ac->ac_sc; 94551974Smsmith struct amr_sgentry *sg; 94651974Smsmith int i; 94751974Smsmith 94865245Smsmith debug_called(3); 94951974Smsmith 95051974Smsmith /* get base address of s/g table */ 95151974Smsmith sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG); 95251974Smsmith 95365245Smsmith /* save data physical address */ 95451974Smsmith ac->ac_dataphys = segs[0].ds_addr; 95551974Smsmith 95665245Smsmith /* decide whether we need to populate the s/g table */ 95765245Smsmith if (nsegments < 2) { 95865245Smsmith ac->ac_mailbox.mb_nsgelem = 0; 95965245Smsmith ac->ac_mailbox.mb_physaddr = ac->ac_dataphys; 96065245Smsmith } else { 96165245Smsmith ac->ac_mailbox.mb_nsgelem = nsegments; 96265245Smsmith ac->ac_mailbox.mb_physaddr = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry)); 96365245Smsmith for (i = 0; i < nsegments; i++, sg++) { 96465245Smsmith sg->sg_addr = segs[i].ds_addr; 96565245Smsmith sg->sg_count = segs[i].ds_len; 96665245Smsmith } 96765245Smsmith } 96865245Smsmith} 96965245Smsmith 97065245Smsmithstatic void 97165245Smsmithamr_setup_ccbmap(void *arg, bus_dma_segment_t *segs, int nsegments, int error) 97265245Smsmith{ 97365245Smsmith struct amr_command *ac = (struct amr_command *)arg; 97465245Smsmith struct amr_softc *sc = ac->ac_sc; 97565245Smsmith struct amr_sgentry *sg; 97665245Smsmith struct amr_passthrough *ap = (struct amr_passthrough *)ac->ac_data; 97765245Smsmith int i; 97865245Smsmith 97965245Smsmith /* get base address of s/g table */ 98065245Smsmith sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG); 98165245Smsmith 98265245Smsmith /* save s/g table information in passthrough */ 98365245Smsmith ap->ap_no_sg_elements = nsegments; 98465245Smsmith ap->ap_data_transfer_address = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry)); 98565245Smsmith 98665245Smsmith /* save pointer to passthrough in command XXX is this already done above? */ 98765245Smsmith ac->ac_mailbox.mb_physaddr = ac->ac_dataphys; 98865245Smsmith 98965245Smsmith debug(2, "slot %d %d segments at 0x%x, passthrough at 0x%x", ac->ac_slot, 99065245Smsmith ap->ap_no_sg_elements, ap->ap_data_transfer_address, ac->ac_dataphys); 99165245Smsmith 99265245Smsmith /* populate s/g table (overwrites previous call which mapped the passthrough) */ 99351974Smsmith for (i = 0; i < nsegments; i++, sg++) { 99451974Smsmith sg->sg_addr = segs[i].ds_addr; 99551974Smsmith sg->sg_count = segs[i].ds_len; 99665245Smsmith debug(2, " %d: 0x%x/%d", i, sg->sg_addr, sg->sg_count); 99751974Smsmith } 99851974Smsmith} 99951974Smsmith 100051974Smsmithstatic void 100151974Smsmithamr_mapcmd(struct amr_command *ac) 100251974Smsmith{ 100351974Smsmith struct amr_softc *sc = ac->ac_sc; 100451974Smsmith 100565245Smsmith debug_called(2); 100651974Smsmith 100765245Smsmith /* if the command involves data at all, and hasn't been mapped */ 100865245Smsmith if (!(ac->ac_flags & AMR_CMD_MAPPED)) { 100965245Smsmith 101065245Smsmith if (ac->ac_data != NULL) { 101165245Smsmith /* map the data buffers into bus space and build the s/g list */ 101265245Smsmith bus_dmamap_load(sc->amr_buffer_dmat, ac->ac_dmamap, ac->ac_data, ac->ac_length, 101365245Smsmith amr_setup_dmamap, ac, 0); 101465245Smsmith if (ac->ac_flags & AMR_CMD_DATAIN) 101565245Smsmith bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_PREREAD); 101665245Smsmith if (ac->ac_flags & AMR_CMD_DATAOUT) 101765245Smsmith bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_PREWRITE); 101865245Smsmith } 101965245Smsmith 102065245Smsmith if (ac->ac_ccb_data != NULL) { 102165245Smsmith bus_dmamap_load(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, ac->ac_ccb_data, ac->ac_ccb_length, 102265245Smsmith amr_setup_ccbmap, ac, 0); 102365245Smsmith if (ac->ac_flags & AMR_CMD_CCB_DATAIN) 102465245Smsmith bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_PREREAD); 102565245Smsmith if (ac->ac_flags & AMR_CMD_CCB_DATAOUT) 102665245Smsmith bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_PREWRITE); 102765245Smsmith } 102865245Smsmith ac->ac_flags |= AMR_CMD_MAPPED; 102951974Smsmith } 103051974Smsmith} 103151974Smsmith 103251974Smsmithstatic void 103351974Smsmithamr_unmapcmd(struct amr_command *ac) 103451974Smsmith{ 103551974Smsmith struct amr_softc *sc = ac->ac_sc; 103651974Smsmith 103765245Smsmith debug_called(2); 103851974Smsmith 103965245Smsmith /* if the command involved data at all and was mapped */ 104065245Smsmith if (ac->ac_flags & AMR_CMD_MAPPED) { 104151974Smsmith 104265245Smsmith if (ac->ac_data != NULL) { 104365245Smsmith if (ac->ac_flags & AMR_CMD_DATAIN) 104465245Smsmith bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_POSTREAD); 104565245Smsmith if (ac->ac_flags & AMR_CMD_DATAOUT) 104665245Smsmith bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_POSTWRITE); 104765245Smsmith bus_dmamap_unload(sc->amr_buffer_dmat, ac->ac_dmamap); 104865245Smsmith } 104965245Smsmith 105065245Smsmith if (ac->ac_ccb_data != NULL) { 105165245Smsmith if (ac->ac_flags & AMR_CMD_CCB_DATAIN) 105265245Smsmith bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_POSTREAD); 105365245Smsmith if (ac->ac_flags & AMR_CMD_CCB_DATAOUT) 105465245Smsmith bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_POSTWRITE); 105565245Smsmith bus_dmamap_unload(sc->amr_buffer_dmat, ac->ac_ccb_dmamap); 105665245Smsmith } 105765245Smsmith ac->ac_flags &= ~AMR_CMD_MAPPED; 105851974Smsmith } 105951974Smsmith} 106051974Smsmith 106151974Smsmith/******************************************************************************** 106265245Smsmith * Take a command and give it to the controller, returns 0 if successful, or 106365245Smsmith * EBUSY if the command should be retried later. 106451974Smsmith */ 106551974Smsmithstatic int 106651974Smsmithamr_start(struct amr_command *ac) 106751974Smsmith{ 106851974Smsmith struct amr_softc *sc = ac->ac_sc; 106958883Smsmith int done, s, i; 107051974Smsmith 107165245Smsmith debug_called(2); 107251974Smsmith 107365245Smsmith /* mark command as busy so that polling consumer can tell */ 107465245Smsmith ac->ac_flags |= AMR_CMD_BUSY; 107565245Smsmith 107665245Smsmith /* get a command slot (freed in amr_done) */ 107765245Smsmith if (amr_getslot(ac)) 107865245Smsmith return(EBUSY); 107965245Smsmith 108065245Smsmith /* now we have a slot, we can map the command (unmapped in amr_complete) */ 108165245Smsmith amr_mapcmd(ac); 108265245Smsmith 108365245Smsmith /* mark the new mailbox we are going to copy in as busy */ 108465245Smsmith ac->ac_mailbox.mb_busy = 1; 108565245Smsmith 108665245Smsmith /* clear the poll/ack fields in the mailbox */ 108765245Smsmith sc->amr_mailbox->mb_poll = 0; 108865245Smsmith sc->amr_mailbox->mb_ack = 0; 108965245Smsmith 109051974Smsmith /* 109151974Smsmith * Save the slot number so that we can locate this command when complete. 109251974Smsmith * Note that ident = 0 seems to be special, so we don't use it. 109351974Smsmith */ 109451974Smsmith ac->ac_mailbox.mb_ident = ac->ac_slot + 1; 109551974Smsmith 109658883Smsmith /* 109765245Smsmith * Spin waiting for the mailbox, give up after ~1 second. We expect the 109865245Smsmith * controller to be able to handle our I/O. 109965245Smsmith * 110065245Smsmith * XXX perhaps we should wait for less time, and count on the deferred command 110165245Smsmith * handling to deal with retries? 110258883Smsmith */ 110365245Smsmith debug(2, "wait for mailbox"); 110458883Smsmith for (i = 10000, done = 0; (i > 0) && !done; i--) { 110551974Smsmith s = splbio(); 110651974Smsmith 110751974Smsmith /* is the mailbox free? */ 110851974Smsmith if (sc->amr_mailbox->mb_busy == 0) { 110965245Smsmith debug(2, "got mailbox"); 111051974Smsmith sc->amr_mailbox64->mb64_segment = 0; 111165245Smsmith bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE); 111251974Smsmith done = 1; 111351974Smsmith 111465245Smsmith /* not free, spin waiting */ 111551974Smsmith } else { 111665245Smsmith debug(3, "busy flag %x\n", sc->amr_mailbox->mb_busy); 111758883Smsmith /* this is somewhat ugly */ 111858883Smsmith DELAY(100); 111951974Smsmith } 112058883Smsmith splx(s); /* drop spl to allow completion interrupts */ 112151974Smsmith } 112265245Smsmith 112365245Smsmith /* 112465245Smsmith * Now give the command to the controller 112565245Smsmith */ 112651974Smsmith if (done) { 112765245Smsmith if (sc->amr_submit_command(sc)) { 112865245Smsmith /* the controller wasn't ready to take the command, forget that we tried to post it */ 112965245Smsmith sc->amr_mailbox->mb_busy = 0; 113065245Smsmith return(EBUSY); 113165245Smsmith } 113265245Smsmith debug(2, "posted command"); 113351974Smsmith return(0); 113451974Smsmith } 113551974Smsmith 113651974Smsmith /* 113765245Smsmith * The controller wouldn't take the command. Return the command as busy 113865245Smsmith * so that it is retried later. 113951974Smsmith */ 114065245Smsmith return(EBUSY); 114151974Smsmith} 114251974Smsmith 114351974Smsmith/******************************************************************************** 114451974Smsmith * Extract one or more completed commands from the controller (sc) 114551974Smsmith * 114652543Smsmith * Returns nonzero if any commands on the work queue were marked as completed. 114751974Smsmith */ 114865245Smsmithint 114951974Smsmithamr_done(struct amr_softc *sc) 115051974Smsmith{ 115151974Smsmith struct amr_command *ac; 115251974Smsmith struct amr_mailbox mbox; 115365245Smsmith int i, idx, result; 115451974Smsmith 115565245Smsmith debug_called(2); 115651974Smsmith 115751974Smsmith /* See if there's anything for us to do */ 115851974Smsmith result = 0; 115951974Smsmith 116058883Smsmith /* loop collecting completed commands */ 116158883Smsmith for (;;) { 116258883Smsmith /* poll for a completed command's identifier and status */ 116358883Smsmith if (sc->amr_get_work(sc, &mbox)) { 116458883Smsmith result = 1; 116558883Smsmith 116658883Smsmith /* iterate over completed commands in this result */ 116758883Smsmith for (i = 0; i < mbox.mb_nstatus; i++) { 116858883Smsmith /* get pointer to busy command */ 116958883Smsmith idx = mbox.mb_completed[i] - 1; 117058883Smsmith ac = sc->amr_busycmd[idx]; 117151974Smsmith 117258883Smsmith /* really a busy command? */ 117358883Smsmith if (ac != NULL) { 117458883Smsmith 117558883Smsmith /* pull the command from the busy index */ 117658883Smsmith sc->amr_busycmd[idx] = NULL; 117765245Smsmith sc->amr_busyslots--; 117851974Smsmith 117965245Smsmith /* save status for later use */ 118065245Smsmith ac->ac_status = mbox.mb_status; 118165245Smsmith amr_enqueue_completed(ac); 118265245Smsmith debug(3, "completed command with status %x", mbox.mb_status); 118365245Smsmith } else { 118465245Smsmith device_printf(sc->amr_dev, "bad slot %d completed\n", idx); 118551974Smsmith } 118651974Smsmith } 118758883Smsmith } else { 118865245Smsmith break; /* no work */ 118951974Smsmith } 119051974Smsmith } 119158883Smsmith 119258883Smsmith /* if we've completed any commands, try posting some more */ 119358883Smsmith if (result) 119458883Smsmith amr_startio(sc); 119558883Smsmith 119658883Smsmith /* handle completion and timeouts */ 119765245Smsmith#if __FreeBSD_version >= 500005 119865245Smsmith if (sc->amr_state & AMR_STATE_INTEN) 119965245Smsmith taskqueue_enqueue(taskqueue_swi, &sc->amr_task_complete); 120065245Smsmith else 120165245Smsmith#endif 120265245Smsmith amr_complete(sc, 0); 120358883Smsmith 120451974Smsmith return(result); 120551974Smsmith} 120651974Smsmith 120751974Smsmith/******************************************************************************** 120851974Smsmith * Do completion processing on done commands on (sc) 120951974Smsmith */ 121051974Smsmithstatic void 121165245Smsmithamr_complete(void *context, int pending) 121251974Smsmith{ 121365245Smsmith struct amr_softc *sc = (struct amr_softc *)context; 121465245Smsmith struct amr_command *ac; 121551974Smsmith 121665245Smsmith debug_called(2); 121751974Smsmith 121865245Smsmith /* pull completed commands off the queue */ 121965245Smsmith for (;;) { 122065245Smsmith ac = amr_dequeue_completed(sc); 122165245Smsmith if (ac == NULL) 122265245Smsmith break; 122358883Smsmith 122465245Smsmith /* unmap the command's data buffer */ 122565245Smsmith amr_unmapcmd(ac); 122651974Smsmith 122765245Smsmith /* unbusy the command */ 122865245Smsmith ac->ac_flags &= ~AMR_CMD_BUSY; 122951974Smsmith 123065245Smsmith /* 123165245Smsmith * Is there a completion handler? 123265245Smsmith */ 123365245Smsmith if (ac->ac_complete != NULL) { 123465245Smsmith ac->ac_complete(ac); 123565245Smsmith 123651974Smsmith /* 123765245Smsmith * Is someone sleeping on this one? 123851974Smsmith */ 123965245Smsmith } else if (ac->ac_flags & AMR_CMD_SLEEP) { 124065245Smsmith wakeup(ac); 124151974Smsmith } 124251974Smsmith } 124351974Smsmith} 124451974Smsmith 124551974Smsmith/******************************************************************************** 124651974Smsmith ******************************************************************************** 124751974Smsmith Command Buffer Management 124851974Smsmith ******************************************************************************** 124951974Smsmith ********************************************************************************/ 125051974Smsmith 125151974Smsmith/******************************************************************************** 125251974Smsmith * Get a new command buffer. 125351974Smsmith * 125451974Smsmith * This may return NULL in low-memory cases. 125551974Smsmith * 125651974Smsmith * If possible, we recycle a command buffer that's been used before. 125751974Smsmith */ 125865245Smsmithstruct amr_command * 125951974Smsmithamr_alloccmd(struct amr_softc *sc) 126051974Smsmith{ 126151974Smsmith struct amr_command *ac; 126251974Smsmith 126365245Smsmith debug_called(3); 126451974Smsmith 126565245Smsmith ac = amr_dequeue_free(sc); 126651974Smsmith if (ac == NULL) { 126765245Smsmith amr_alloccmd_cluster(sc); 126865245Smsmith ac = amr_dequeue_free(sc); 126951974Smsmith } 127065245Smsmith if (ac == NULL) 127165245Smsmith return(NULL); 127265245Smsmith 127365245Smsmith /* clear out significant fields */ 127465245Smsmith ac->ac_slot = 0; 127565245Smsmith ac->ac_status = 0; 127651974Smsmith bzero(&ac->ac_mailbox, sizeof(struct amr_mailbox)); 127765245Smsmith ac->ac_flags = 0; 127865245Smsmith ac->ac_bio = NULL; 127965245Smsmith ac->ac_data = NULL; 128065245Smsmith ac->ac_ccb_data = NULL; 128165245Smsmith ac->ac_complete = NULL; 128251974Smsmith return(ac); 128351974Smsmith} 128451974Smsmith 128551974Smsmith/******************************************************************************** 128651974Smsmith * Release a command buffer for recycling. 128751974Smsmith */ 128865245Smsmithvoid 128951974Smsmithamr_releasecmd(struct amr_command *ac) 129051974Smsmith{ 129165245Smsmith debug_called(3); 129251974Smsmith 129365245Smsmith amr_enqueue_free(ac); 129451974Smsmith} 129551974Smsmith 129651974Smsmith/******************************************************************************** 129765245Smsmith * Allocate a new command cluster and initialise it. 129851974Smsmith */ 129965245Smsmithvoid 130065245Smsmithamr_alloccmd_cluster(struct amr_softc *sc) 130151974Smsmith{ 130265245Smsmith struct amr_command_cluster *acc; 130365245Smsmith struct amr_command *ac; 130465245Smsmith int s, i; 130551974Smsmith 130665245Smsmith acc = malloc(AMR_CMD_CLUSTERSIZE, M_DEVBUF, M_NOWAIT); 130765245Smsmith if (acc != NULL) { 130865245Smsmith s = splbio(); 130965245Smsmith TAILQ_INSERT_TAIL(&sc->amr_cmd_clusters, acc, acc_link); 131065245Smsmith splx(s); 131165245Smsmith for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++) { 131265245Smsmith ac = &acc->acc_command[i]; 131365245Smsmith bzero(ac, sizeof(*ac)); 131465245Smsmith ac->ac_sc = sc; 131565245Smsmith if (!bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_dmamap) && 131665245Smsmith !bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_ccb_dmamap)) 131765245Smsmith amr_releasecmd(ac); 131865245Smsmith } 131965245Smsmith } 132051974Smsmith} 132151974Smsmith 132251974Smsmith/******************************************************************************** 132365245Smsmith * Free a command cluster 132465245Smsmith */ 132565245Smsmithvoid 132665245Smsmithamr_freecmd_cluster(struct amr_command_cluster *acc) 132765245Smsmith{ 132865245Smsmith struct amr_softc *sc = acc->acc_command[0].ac_sc; 132965245Smsmith int i; 133065245Smsmith 133165245Smsmith for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++) 133265245Smsmith bus_dmamap_destroy(sc->amr_buffer_dmat, acc->acc_command[i].ac_dmamap); 133365245Smsmith free(acc, M_DEVBUF); 133465245Smsmith} 133565245Smsmith 133665245Smsmith/******************************************************************************** 133751974Smsmith ******************************************************************************** 133851974Smsmith Interface-specific Shims 133951974Smsmith ******************************************************************************** 134051974Smsmith ********************************************************************************/ 134151974Smsmith 134251974Smsmith/******************************************************************************** 134351974Smsmith * Tell the controller that the mailbox contains a valid command 134451974Smsmith */ 134565245Smsmithstatic int 134651974Smsmithamr_quartz_submit_command(struct amr_softc *sc) 134751974Smsmith{ 134865245Smsmith debug_called(3); 134951974Smsmith 135065245Smsmith if (AMR_QGET_IDB(sc) & AMR_QIDB_SUBMIT) 135165245Smsmith return(EBUSY); 135251974Smsmith AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT); 135365245Smsmith return(0); 135451974Smsmith} 135551974Smsmith 135665245Smsmithstatic int 135751974Smsmithamr_std_submit_command(struct amr_softc *sc) 135851974Smsmith{ 135965245Smsmith debug_called(3); 136051974Smsmith 136165245Smsmith if (AMR_SGET_MBSTAT(sc) & AMR_SMBOX_BUSYFLAG) 136265245Smsmith return(EBUSY); 136351974Smsmith AMR_SPOST_COMMAND(sc); 136465245Smsmith return(0); 136551974Smsmith} 136651974Smsmith 136751974Smsmith/******************************************************************************** 136851974Smsmith * Claim any work that the controller has completed; acknowledge completion, 136951974Smsmith * save details of the completion in (mbsave) 137051974Smsmith */ 137151974Smsmithstatic int 137251974Smsmithamr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave) 137351974Smsmith{ 137451974Smsmith int s, worked; 137551974Smsmith u_int32_t outd; 137651974Smsmith 137765245Smsmith debug_called(3); 137865245Smsmith 137951974Smsmith worked = 0; 138051974Smsmith s = splbio(); 138151974Smsmith 138251974Smsmith /* work waiting for us? */ 138351974Smsmith if ((outd = AMR_QGET_ODB(sc)) == AMR_QODB_READY) { 138451974Smsmith 138551974Smsmith /* save mailbox, which contains a list of completed commands */ 138665245Smsmith bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave)); 138751974Smsmith 138865245Smsmith /* acknowledge interrupt */ 138965245Smsmith AMR_QPUT_ODB(sc, AMR_QODB_READY); 139065245Smsmith 139151974Smsmith /* acknowledge that we have the commands */ 139251974Smsmith AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK); 139365245Smsmith 139465763Smsmith#ifndef AMR_QUARTZ_GOFASTER 139565245Smsmith /* 139665245Smsmith * This waits for the controller to notice that we've taken the 139765245Smsmith * command from it. It's very inefficient, and we shouldn't do it, 139865245Smsmith * but if we remove this code, we stop completing commands under 139965245Smsmith * load. 140065245Smsmith * 140165245Smsmith * Peter J says we shouldn't do this. The documentation says we 140265245Smsmith * should. Who is right? 140365245Smsmith */ 140451974Smsmith while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK) 140551974Smsmith ; /* XXX aiee! what if it dies? */ 140665245Smsmith#endif 140765245Smsmith 140851974Smsmith worked = 1; /* got some work */ 140951974Smsmith } 141051974Smsmith 141151974Smsmith splx(s); 141251974Smsmith return(worked); 141351974Smsmith} 141451974Smsmith 141551974Smsmithstatic int 141651974Smsmithamr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave) 141751974Smsmith{ 141851974Smsmith int s, worked; 141951974Smsmith u_int8_t istat; 142051974Smsmith 142165245Smsmith debug_called(3); 142251974Smsmith 142351974Smsmith worked = 0; 142451974Smsmith s = splbio(); 142551974Smsmith 142651974Smsmith /* check for valid interrupt status */ 142751974Smsmith istat = AMR_SGET_ISTAT(sc); 142851974Smsmith if ((istat & AMR_SINTR_VALID) != 0) { 142951974Smsmith AMR_SPUT_ISTAT(sc, istat); /* ack interrupt status */ 143051974Smsmith 143151974Smsmith /* save mailbox, which contains a list of completed commands */ 143265245Smsmith bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave)); 143351974Smsmith 143451974Smsmith AMR_SACK_INTERRUPT(sc); /* acknowledge we have the mailbox */ 143551974Smsmith worked = 1; 143651974Smsmith } 143751974Smsmith 143851974Smsmith splx(s); 143951974Smsmith return(worked); 144051974Smsmith} 144151974Smsmith 144251974Smsmith/******************************************************************************** 144351974Smsmith * Notify the controller of the mailbox location. 144451974Smsmith */ 144551974Smsmithstatic void 144651974Smsmithamr_std_attach_mailbox(struct amr_softc *sc) 144751974Smsmith{ 144851974Smsmith 144951974Smsmith /* program the mailbox physical address */ 145051974Smsmith AMR_SBYTE_SET(sc, AMR_SMBOX_0, sc->amr_mailboxphys & 0xff); 145151974Smsmith AMR_SBYTE_SET(sc, AMR_SMBOX_1, (sc->amr_mailboxphys >> 8) & 0xff); 145251974Smsmith AMR_SBYTE_SET(sc, AMR_SMBOX_2, (sc->amr_mailboxphys >> 16) & 0xff); 145351974Smsmith AMR_SBYTE_SET(sc, AMR_SMBOX_3, (sc->amr_mailboxphys >> 24) & 0xff); 145451974Smsmith AMR_SBYTE_SET(sc, AMR_SMBOX_ENABLE, AMR_SMBOX_ADDR); 145551974Smsmith 145651974Smsmith /* clear any outstanding interrupt and enable interrupts proper */ 145751974Smsmith AMR_SACK_INTERRUPT(sc); 145851974Smsmith AMR_SENABLE_INTR(sc); 145951974Smsmith} 146051974Smsmith 146165245Smsmith#ifdef AMR_BOARD_INIT 146251974Smsmith/******************************************************************************** 146365245Smsmith * Initialise the controller 146465245Smsmith */ 146565245Smsmithstatic int 146665245Smsmithamr_quartz_init(struct amr_softc *sc) 146765245Smsmith{ 146865245Smsmith int status, ostatus; 146965245Smsmith 147065245Smsmith device_printf(sc->amr_dev, "initial init status %x\n", AMR_QGET_INITSTATUS(sc)); 147165245Smsmith 147265245Smsmith AMR_QRESET(sc); 147365245Smsmith 147465245Smsmith ostatus = 0xff; 147565245Smsmith while ((status = AMR_QGET_INITSTATUS(sc)) != AMR_QINIT_DONE) { 147665245Smsmith if (status != ostatus) { 147765245Smsmith device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_qinit, status)); 147865245Smsmith ostatus = status; 147965245Smsmith } 148065245Smsmith switch (status) { 148165245Smsmith case AMR_QINIT_NOMEM: 148265245Smsmith return(ENOMEM); 148365245Smsmith 148465245Smsmith case AMR_QINIT_SCAN: 148565245Smsmith /* XXX we could print channel/target here */ 148665245Smsmith break; 148765245Smsmith } 148865245Smsmith } 148965245Smsmith return(0); 149065245Smsmith} 149165245Smsmith 149265245Smsmithstatic int 149365245Smsmithamr_std_init(struct amr_softc *sc) 149465245Smsmith{ 149565245Smsmith int status, ostatus; 149665245Smsmith 149765245Smsmith device_printf(sc->amr_dev, "initial init status %x\n", AMR_SGET_INITSTATUS(sc)); 149865245Smsmith 149965245Smsmith AMR_SRESET(sc); 150065245Smsmith 150165245Smsmith ostatus = 0xff; 150265245Smsmith while ((status = AMR_SGET_INITSTATUS(sc)) != AMR_SINIT_DONE) { 150365245Smsmith if (status != ostatus) { 150465245Smsmith device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_sinit, status)); 150565245Smsmith ostatus = status; 150665245Smsmith } 150765245Smsmith switch (status) { 150865245Smsmith case AMR_SINIT_NOMEM: 150965245Smsmith return(ENOMEM); 151065245Smsmith 151165245Smsmith case AMR_SINIT_INPROG: 151265245Smsmith /* XXX we could print channel/target here? */ 151365245Smsmith break; 151465245Smsmith } 151565245Smsmith } 151665245Smsmith return(0); 151765245Smsmith} 151865245Smsmith#endif 151965245Smsmith 152065245Smsmith/******************************************************************************** 152151974Smsmith ******************************************************************************** 152251974Smsmith Debugging 152351974Smsmith ******************************************************************************** 152451974Smsmith ********************************************************************************/ 152551974Smsmith 152651974Smsmith/******************************************************************************** 152765245Smsmith * Identify the controller and print some information about it. 152865245Smsmith */ 152965245Smsmithstatic void 153065245Smsmithamr_describe_controller(struct amr_softc *sc) 153165245Smsmith{ 153265245Smsmith struct amr_prodinfo *ap; 153365245Smsmith struct amr_enquiry *ae; 153465245Smsmith char *prod; 153565245Smsmith 153665245Smsmith /* 153765245Smsmith * Try to get 40LD product info, which tells us what the card is labelled as. 153865245Smsmith */ 153965245Smsmith if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0)) != NULL) { 154065245Smsmith device_printf(sc->amr_dev, "<%.80s> Firmware %.16s, BIOS %.16s, %dMB RAM\n", 154165245Smsmith ap->ap_product, ap->ap_firmware, ap->ap_bios, 154265245Smsmith ap->ap_memsize); 154365245Smsmith 154465245Smsmith free(ap, M_DEVBUF); 154565245Smsmith return; 154665245Smsmith } 154765245Smsmith 154865245Smsmith /* 154965245Smsmith * Try 8LD extended ENQUIRY to get controller signature, and use lookup table. 155065245Smsmith */ 155165245Smsmith if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0)) != NULL) { 155265245Smsmith prod = amr_describe_code(amr_table_adaptertype, ae->ae_signature); 155365245Smsmith 155465245Smsmith } else if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0)) != NULL) { 155565245Smsmith 155665245Smsmith /* 155765245Smsmith * Try to work it out based on the PCI signatures. 155865245Smsmith */ 155965245Smsmith switch (pci_get_device(sc->amr_dev)) { 156065245Smsmith case 0x9010: 156165245Smsmith prod = "Series 428"; 156265245Smsmith break; 156365245Smsmith case 0x9060: 156465245Smsmith prod = "Series 434"; 156565245Smsmith break; 156665245Smsmith default: 156765245Smsmith prod = "unknown controller"; 156865245Smsmith break; 156965245Smsmith } 157065245Smsmith } else { 157165245Smsmith prod = "unsupported controller"; 157265245Smsmith } 157365245Smsmith device_printf(sc->amr_dev, "<%s> Firmware %.4s, BIOS %.4s, %dMB RAM\n", 157465245Smsmith prod, ae->ae_adapter.aa_firmware, ae->ae_adapter.aa_bios, 157565245Smsmith ae->ae_adapter.aa_memorysize); 157665245Smsmith free(ae, M_DEVBUF); 157765245Smsmith} 157865245Smsmith 157965245Smsmith#ifdef AMR_DEBUG 158065245Smsmith/******************************************************************************** 158151974Smsmith * Print the command (ac) in human-readable format 158251974Smsmith */ 158351974Smsmithstatic void 158451974Smsmithamr_printcommand(struct amr_command *ac) 158551974Smsmith{ 158651974Smsmith struct amr_softc *sc = ac->ac_sc; 158751974Smsmith struct amr_sgentry *sg; 158851974Smsmith int i; 158951974Smsmith 159051974Smsmith device_printf(sc->amr_dev, "cmd %x ident %d drive %d\n", 159151974Smsmith ac->ac_mailbox.mb_command, ac->ac_mailbox.mb_ident, ac->ac_mailbox.mb_drive); 159251974Smsmith device_printf(sc->amr_dev, "blkcount %d lba %d\n", 159351974Smsmith ac->ac_mailbox.mb_blkcount, ac->ac_mailbox.mb_lba); 159454512Speter device_printf(sc->amr_dev, "virtaddr %p length %lu\n", ac->ac_data, (unsigned long)ac->ac_length); 159558883Smsmith device_printf(sc->amr_dev, "sg physaddr %08x nsg %d\n", 159651974Smsmith ac->ac_mailbox.mb_physaddr, ac->ac_mailbox.mb_nsgelem); 159765245Smsmith device_printf(sc->amr_dev, "ccb %p bio %p\n", ac->ac_ccb_data, ac->ac_bio); 159851974Smsmith 159951974Smsmith /* get base address of s/g table */ 160051974Smsmith sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG); 160151974Smsmith for (i = 0; i < ac->ac_mailbox.mb_nsgelem; i++, sg++) 160251974Smsmith device_printf(sc->amr_dev, " %x/%d\n", sg->sg_addr, sg->sg_count); 160351974Smsmith} 160465245Smsmith#endif 1605