amr.c revision 107756
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 * 27106225Semoore * Copyright (c) 2002 Eric Moore 28106225Semoore * Copyright (c) 2002 LSI Logic Corporation 29106225Semoore * All rights reserved. 30106225Semoore * 31106225Semoore * Redistribution and use in source and binary forms, with or without 32106225Semoore * modification, are permitted provided that the following conditions 33106225Semoore * are met: 34106225Semoore * 1. Redistributions of source code must retain the above copyright 35106225Semoore * notice, this list of conditions and the following disclaimer. 36106225Semoore * 2. Redistributions in binary form must reproduce the above copyright 37106225Semoore * notice, this list of conditions and the following disclaimer in the 38106225Semoore * documentation and/or other materials provided with the distribution. 39105419Semoore * 3. The party using or redistributing the source code and binary forms 40106225Semoore * agrees to the disclaimer below and the terms and conditions set forth 41105419Semoore * herein. 42105419Semoore * 43106225Semoore * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 44106225Semoore * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 45106225Semoore * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 46106225Semoore * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 47106225Semoore * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 48106225Semoore * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 49106225Semoore * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 50106225Semoore * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 51106225Semoore * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 52106225Semoore * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 53106225Semoore * SUCH DAMAGE. 54105419Semoore * 55106225Semoore * 5651974Smsmith * $FreeBSD: head/sys/dev/amr/amr.c 107756 2002-12-11 20:59:46Z emoore $ 5751974Smsmith */ 5851974Smsmith 5951974Smsmith/* 6065245Smsmith * Driver for the AMI MegaRaid family of controllers. 6151974Smsmith */ 6251974Smsmith 6351974Smsmith#include <sys/param.h> 6451974Smsmith#include <sys/systm.h> 6551974Smsmith#include <sys/malloc.h> 6651974Smsmith#include <sys/kernel.h> 6751974Smsmith 6865245Smsmith#include <dev/amr/amr_compat.h> 6951974Smsmith#include <sys/bus.h> 7051974Smsmith#include <sys/conf.h> 7151974Smsmith#include <sys/devicestat.h> 7251974Smsmith#include <sys/disk.h> 7365245Smsmith#include <sys/stat.h> 7451974Smsmith 7565245Smsmith#include <machine/bus_memio.h> 7665245Smsmith#include <machine/bus_pio.h> 7765245Smsmith#include <machine/bus.h> 7851974Smsmith#include <machine/resource.h> 7951974Smsmith#include <sys/rman.h> 8051974Smsmith 8165245Smsmith#include <pci/pcireg.h> 8265245Smsmith#include <pci/pcivar.h> 8365245Smsmith 8451974Smsmith#include <dev/amr/amrio.h> 8551974Smsmith#include <dev/amr/amrreg.h> 8651974Smsmith#include <dev/amr/amrvar.h> 8765245Smsmith#define AMR_DEFINE_TABLES 8865245Smsmith#include <dev/amr/amr_tables.h> 8951974Smsmith 9051974Smsmith#define AMR_CDEV_MAJOR 132 9151974Smsmith 9265245Smsmithstatic d_open_t amr_open; 9365245Smsmithstatic d_close_t amr_close; 9465245Smsmithstatic d_ioctl_t amr_ioctl; 9565245Smsmith 9651974Smsmithstatic struct cdevsw amr_cdevsw = { 9751974Smsmith /* open */ amr_open, 9851974Smsmith /* close */ amr_close, 9951974Smsmith /* read */ noread, 10051974Smsmith /* write */ nowrite, 10151974Smsmith /* ioctl */ amr_ioctl, 10251974Smsmith /* poll */ nopoll, 10351974Smsmith /* mmap */ nommap, 10451974Smsmith /* strategy */ nostrategy, 10551974Smsmith /* name */ "amr", 10651974Smsmith /* maj */ AMR_CDEV_MAJOR, 10751974Smsmith /* dump */ nodump, 10851974Smsmith /* psize */ nopsize, 10951974Smsmith /* flags */ 0, 11051974Smsmith}; 11151974Smsmith 11265245Smsmith/* 11365245Smsmith * Initialisation, bus interface. 11465245Smsmith */ 11565245Smsmithstatic void amr_startup(void *arg); 11651974Smsmith 11751974Smsmith/* 11851974Smsmith * Command wrappers 11951974Smsmith */ 12065245Smsmithstatic int amr_query_controller(struct amr_softc *sc); 12165245Smsmithstatic void *amr_enquiry(struct amr_softc *sc, size_t bufsize, 12265245Smsmith u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual); 12365245Smsmithstatic void amr_completeio(struct amr_command *ac); 124106225Semoorestatic int amr_support_ext_cdb(struct amr_softc *sc); 12551974Smsmith 12651974Smsmith/* 12765245Smsmith * Command buffer allocation. 12851974Smsmith */ 12965245Smsmithstatic void amr_alloccmd_cluster(struct amr_softc *sc); 13065245Smsmithstatic void amr_freecmd_cluster(struct amr_command_cluster *acc); 13151974Smsmith 13251974Smsmith/* 13365245Smsmith * Command processing. 13451974Smsmith */ 13565245Smsmithstatic int amr_bio_command(struct amr_softc *sc, struct amr_command **acp); 13665245Smsmithstatic int amr_wait_command(struct amr_command *ac); 13765245Smsmithstatic int amr_getslot(struct amr_command *ac); 13865245Smsmithstatic void amr_mapcmd(struct amr_command *ac); 13965245Smsmithstatic void amr_unmapcmd(struct amr_command *ac); 14065245Smsmithstatic int amr_start(struct amr_command *ac); 14165245Smsmithstatic void amr_complete(void *context, int pending); 14251974Smsmith 14351974Smsmith/* 14458883Smsmith * Status monitoring 14558883Smsmith */ 14665245Smsmithstatic void amr_periodic(void *data); 14758883Smsmith 14858883Smsmith/* 14951974Smsmith * Interface-specific shims 15051974Smsmith */ 15165245Smsmithstatic int amr_quartz_submit_command(struct amr_softc *sc); 15265245Smsmithstatic int amr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave); 153107756Semoorestatic int amr_quartz_poll_command(struct amr_command *ac); 15451974Smsmith 15565245Smsmithstatic int amr_std_submit_command(struct amr_softc *sc); 15665245Smsmithstatic int amr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave); 157107756Semoorestatic int amr_std_poll_command(struct amr_command *ac); 15865245Smsmithstatic void amr_std_attach_mailbox(struct amr_softc *sc); 15951974Smsmith 16065245Smsmith#ifdef AMR_BOARD_INIT 16165245Smsmithstatic int amr_quartz_init(struct amr_softc *sc); 16265245Smsmithstatic int amr_std_init(struct amr_softc *sc); 16365245Smsmith#endif 16465245Smsmith 16551974Smsmith/* 16651974Smsmith * Debugging 16751974Smsmith */ 16865245Smsmithstatic void amr_describe_controller(struct amr_softc *sc); 16965245Smsmith#ifdef AMR_DEBUG 170107756Semoore#if 0 17165245Smsmithstatic void amr_printcommand(struct amr_command *ac); 17265245Smsmith#endif 173107756Semoore#endif 17451974Smsmith 17551974Smsmith/******************************************************************************** 17651974Smsmith ******************************************************************************** 17765245Smsmith Inline Glue 17851974Smsmith ******************************************************************************** 17951974Smsmith ********************************************************************************/ 18051974Smsmith 18151974Smsmith/******************************************************************************** 18265245Smsmith ******************************************************************************** 18365245Smsmith Public Interfaces 18465245Smsmith ******************************************************************************** 18565245Smsmith ********************************************************************************/ 18651974Smsmith 18751974Smsmith/******************************************************************************** 18851974Smsmith * Initialise the controller and softc. 18951974Smsmith */ 19051974Smsmithint 19151974Smsmithamr_attach(struct amr_softc *sc) 19251974Smsmith{ 19351974Smsmith 19465245Smsmith debug_called(1); 19565245Smsmith 19651974Smsmith /* 19751974Smsmith * Initialise per-controller queues. 19851974Smsmith */ 19965245Smsmith TAILQ_INIT(&sc->amr_completed); 20051974Smsmith TAILQ_INIT(&sc->amr_freecmds); 20165245Smsmith TAILQ_INIT(&sc->amr_cmd_clusters); 20265245Smsmith TAILQ_INIT(&sc->amr_ready); 20359249Sphk bioq_init(&sc->amr_bioq); 20451974Smsmith 20565245Smsmith#if __FreeBSD_version >= 500005 20651974Smsmith /* 20765245Smsmith * Initialise command-completion task. 20865245Smsmith */ 20965245Smsmith TASK_INIT(&sc->amr_task_complete, 0, amr_complete, sc); 21065245Smsmith#endif 21165245Smsmith 21265245Smsmith debug(2, "queue init done"); 21365245Smsmith 21465245Smsmith /* 21551974Smsmith * Configure for this controller type. 21651974Smsmith */ 21765245Smsmith if (AMR_IS_QUARTZ(sc)) { 21851974Smsmith sc->amr_submit_command = amr_quartz_submit_command; 21951974Smsmith sc->amr_get_work = amr_quartz_get_work; 220107756Semoore sc->amr_poll_command = amr_quartz_poll_command; 22151974Smsmith } else { 22251974Smsmith sc->amr_submit_command = amr_std_submit_command; 22351974Smsmith sc->amr_get_work = amr_std_get_work; 224107756Semoore sc->amr_poll_command = amr_std_poll_command; 22565245Smsmith amr_std_attach_mailbox(sc);; 22651974Smsmith } 22751974Smsmith 22865245Smsmith#ifdef AMR_BOARD_INIT 22965245Smsmith if ((AMR_IS_QUARTZ(sc) ? amr_quartz_init(sc) : amr_std_init(sc)))) 23065245Smsmith return(ENXIO); 23165245Smsmith#endif 23251974Smsmith 23351974Smsmith /* 23465245Smsmith * Quiz controller for features and limits. 23551974Smsmith */ 23665245Smsmith if (amr_query_controller(sc)) 23765245Smsmith return(ENXIO); 23851974Smsmith 23965245Smsmith debug(2, "controller query complete"); 24051974Smsmith 24151974Smsmith /* 24265245Smsmith * Attach our 'real' SCSI channels to CAM. 24351974Smsmith */ 24465245Smsmith if (amr_cam_attach(sc)) 24551974Smsmith return(ENXIO); 24665245Smsmith debug(2, "CAM attach done"); 24751974Smsmith 24851974Smsmith /* 24965245Smsmith * Create the control device. 25051974Smsmith */ 25165245Smsmith sc->amr_dev_t = make_dev(&amr_cdevsw, device_get_unit(sc->amr_dev), UID_ROOT, GID_OPERATOR, 25265245Smsmith S_IRUSR | S_IWUSR, "amr%d", device_get_unit(sc->amr_dev)); 25365245Smsmith sc->amr_dev_t->si_drv1 = sc; 25451974Smsmith 25551974Smsmith /* 25665245Smsmith * Schedule ourselves to bring the controller up once interrupts are 25765245Smsmith * available. 25851974Smsmith */ 25965245Smsmith bzero(&sc->amr_ich, sizeof(struct intr_config_hook)); 26065245Smsmith sc->amr_ich.ich_func = amr_startup; 26165245Smsmith sc->amr_ich.ich_arg = sc; 26265245Smsmith if (config_intrhook_establish(&sc->amr_ich) != 0) { 26365245Smsmith device_printf(sc->amr_dev, "can't establish configuration hook\n"); 26465245Smsmith return(ENOMEM); 26565245Smsmith } 26651974Smsmith 26758883Smsmith /* 26865245Smsmith * Print a little information about the controller. 26958883Smsmith */ 27065245Smsmith amr_describe_controller(sc); 27158883Smsmith 27265245Smsmith debug(2, "attach complete"); 27351974Smsmith return(0); 27451974Smsmith} 27551974Smsmith 27651974Smsmith/******************************************************************************** 27751974Smsmith * Locate disk resources and attach children to them. 27851974Smsmith */ 27965245Smsmithstatic void 28065245Smsmithamr_startup(void *arg) 28151974Smsmith{ 28265245Smsmith struct amr_softc *sc = (struct amr_softc *)arg; 28351974Smsmith struct amr_logdrive *dr; 28451974Smsmith int i, error; 28551974Smsmith 28665245Smsmith debug_called(1); 28751974Smsmith 28865245Smsmith /* pull ourselves off the intrhook chain */ 28965245Smsmith config_intrhook_disestablish(&sc->amr_ich); 29065245Smsmith 29151974Smsmith /* get up-to-date drive information */ 29251974Smsmith if (amr_query_controller(sc)) { 29365245Smsmith device_printf(sc->amr_dev, "can't scan controller for drives\n"); 29451974Smsmith return; 29551974Smsmith } 29651974Smsmith 29751974Smsmith /* iterate over available drives */ 29851974Smsmith for (i = 0, dr = &sc->amr_drive[0]; (i < AMR_MAXLD) && (dr->al_size != 0xffffffff); i++, dr++) { 29951974Smsmith /* are we already attached to this drive? */ 30051974Smsmith if (dr->al_disk == 0) { 30151974Smsmith /* generate geometry information */ 30251974Smsmith if (dr->al_size > 0x200000) { /* extended translation? */ 30351974Smsmith dr->al_heads = 255; 30451974Smsmith dr->al_sectors = 63; 30551974Smsmith } else { 30651974Smsmith dr->al_heads = 64; 30751974Smsmith dr->al_sectors = 32; 30851974Smsmith } 30951974Smsmith dr->al_cylinders = dr->al_size / (dr->al_heads * dr->al_sectors); 31051974Smsmith 31154073Smdodd dr->al_disk = device_add_child(sc->amr_dev, NULL, -1); 31251974Smsmith if (dr->al_disk == 0) 31351974Smsmith device_printf(sc->amr_dev, "device_add_child failed\n"); 31454073Smdodd device_set_ivars(dr->al_disk, dr); 31551974Smsmith } 31651974Smsmith } 31751974Smsmith 31851974Smsmith if ((error = bus_generic_attach(sc->amr_dev)) != 0) 31951974Smsmith device_printf(sc->amr_dev, "bus_generic_attach returned %d\n", error); 32051974Smsmith 32151974Smsmith /* mark controller back up */ 32251974Smsmith sc->amr_state &= ~AMR_STATE_SHUTDOWN; 32351974Smsmith 32451974Smsmith /* interrupts will be enabled before we do anything more */ 32551974Smsmith sc->amr_state |= AMR_STATE_INTEN; 32651974Smsmith 32751974Smsmith /* 32865245Smsmith * Start the timeout routine. 32951974Smsmith */ 33065245Smsmith/* sc->amr_timeout = timeout(amr_periodic, sc, hz);*/ 33151974Smsmith 33265245Smsmith return; 33351974Smsmith} 33451974Smsmith 33565245Smsmith/******************************************************************************* 33665245Smsmith * Free resources associated with a controller instance 33751974Smsmith */ 33865245Smsmithvoid 33965245Smsmithamr_free(struct amr_softc *sc) 34051974Smsmith{ 34165245Smsmith struct amr_command_cluster *acc; 34251974Smsmith 34365245Smsmith /* detach from CAM */ 344107756Semoore amr_cam_detach(sc); 34551974Smsmith 34665245Smsmith /* cancel status timeout */ 34765245Smsmith untimeout(amr_periodic, sc, sc->amr_timeout); 34851974Smsmith 34965245Smsmith /* throw away any command buffers */ 35065245Smsmith while ((acc = TAILQ_FIRST(&sc->amr_cmd_clusters)) != NULL) { 35165245Smsmith TAILQ_REMOVE(&sc->amr_cmd_clusters, acc, acc_link); 35265245Smsmith amr_freecmd_cluster(acc); 35351974Smsmith } 354107756Semoore 355107756Semoore /* destroy control device */ 356107756Semoore if( sc->amr_dev_t != (dev_t)NULL) 357107756Semoore destroy_dev(sc->amr_dev_t); 35851974Smsmith} 35951974Smsmith 36051974Smsmith/******************************************************************************* 36165245Smsmith * Receive a bio structure from a child device and queue it on a particular 36251974Smsmith * disk resource, then poke the disk resource to start as much work as it can. 36351974Smsmith */ 36451974Smsmithint 36565245Smsmithamr_submit_bio(struct amr_softc *sc, struct bio *bio) 36651974Smsmith{ 36765245Smsmith debug_called(2); 36852543Smsmith 36965245Smsmith amr_enqueue_bio(sc, bio); 37051974Smsmith amr_startio(sc); 37151974Smsmith return(0); 37251974Smsmith} 37351974Smsmith 37451974Smsmith/******************************************************************************** 37551974Smsmith * Accept an open operation on the control device. 37651974Smsmith */ 377104094Sphkstatic int 378105419Semooreamr_open(dev_t dev, int flags, int fmt, d_thread_t *td) 37951974Smsmith{ 38051974Smsmith int unit = minor(dev); 38189055Smsmith struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit); 38251974Smsmith 38365245Smsmith debug_called(1); 38465245Smsmith 38551974Smsmith sc->amr_state |= AMR_STATE_OPEN; 38651974Smsmith return(0); 38751974Smsmith} 38851974Smsmith 38951974Smsmith/******************************************************************************** 39051974Smsmith * Accept the last close on the control device. 39151974Smsmith */ 392104094Sphkstatic int 393105419Semooreamr_close(dev_t dev, int flags, int fmt, d_thread_t *td) 39451974Smsmith{ 39551974Smsmith int unit = minor(dev); 39689055Smsmith struct amr_softc *sc = devclass_get_softc(devclass_find("amr"), unit); 39751974Smsmith 39865245Smsmith debug_called(1); 39965245Smsmith 40051974Smsmith sc->amr_state &= ~AMR_STATE_OPEN; 40151974Smsmith return (0); 40251974Smsmith} 40351974Smsmith 40451974Smsmith/******************************************************************************** 40551974Smsmith * Handle controller-specific control operations. 40651974Smsmith */ 407104094Sphkstatic int 408105419Semooreamr_ioctl(dev_t dev, u_long cmd, caddr_t addr, int32_t flag, d_thread_t *td) 40951974Smsmith{ 41065245Smsmith struct amr_softc *sc = (struct amr_softc *)dev->si_drv1; 41165245Smsmith int *arg = (int *)addr; 41265245Smsmith struct amr_user_ioctl *au = (struct amr_user_ioctl *)addr; 41365245Smsmith struct amr_command *ac; 41465245Smsmith struct amr_mailbox_ioctl *mbi; 41565245Smsmith struct amr_passthrough *ap; 41665245Smsmith void *dp; 41765245Smsmith int error; 41865245Smsmith 41965245Smsmith debug_called(1); 42065245Smsmith 42165245Smsmith error = 0; 42265245Smsmith dp = NULL; 42365245Smsmith ap = NULL; 42465245Smsmith ac = NULL; 42551974Smsmith switch(cmd) { 42665245Smsmith 42765245Smsmith case AMR_IO_VERSION: 42865245Smsmith debug(1, "AMR_IO_VERSION"); 42965245Smsmith *arg = AMR_IO_VERSION_NUMBER; 43065245Smsmith break; 43165245Smsmith 43265245Smsmith case AMR_IO_COMMAND: 43369319Smsmith debug(1, "AMR_IO_COMMAND 0x%x", au->au_cmd[0]); 43465245Smsmith /* handle inbound data buffer */ 43565245Smsmith if (au->au_length != 0) { 43665245Smsmith if ((dp = malloc(au->au_length, M_DEVBUF, M_WAITOK)) == NULL) { 43765245Smsmith error = ENOMEM; 43865245Smsmith break; 43965245Smsmith } 44065245Smsmith if ((error = copyin(au->au_buffer, dp, au->au_length)) != 0) 44165245Smsmith break; 44269319Smsmith debug(2, "copyin %ld bytes from %p -> %p", au->au_length, au->au_buffer, dp); 44365245Smsmith } 44465245Smsmith 44565245Smsmith if ((ac = amr_alloccmd(sc)) == NULL) { 44665245Smsmith error = ENOMEM; 44765245Smsmith break; 44865245Smsmith } 44965245Smsmith 45065245Smsmith /* handle SCSI passthrough command */ 45165245Smsmith if (au->au_cmd[0] == AMR_CMD_PASS) { 45268877Sdwmalone if ((ap = malloc(sizeof(*ap), M_DEVBUF, M_WAITOK | M_ZERO)) == NULL) { 45365245Smsmith error = ENOMEM; 45465245Smsmith break; 45565245Smsmith } 45665245Smsmith 45765245Smsmith /* copy cdb */ 45865245Smsmith ap->ap_cdb_length = au->au_cmd[2]; 45965245Smsmith bcopy(&au->au_cmd[3], &ap->ap_cdb[0], ap->ap_cdb_length); 46065245Smsmith 46165245Smsmith /* build passthrough */ 46265245Smsmith ap->ap_timeout = au->au_cmd[ap->ap_cdb_length + 3] & 0x07; 46365245Smsmith ap->ap_ars = (au->au_cmd[ap->ap_cdb_length + 3] & 0x08) ? 1 : 0; 46465245Smsmith ap->ap_islogical = (au->au_cmd[ap->ap_cdb_length + 3] & 0x80) ? 1 : 0; 46565245Smsmith ap->ap_logical_drive_no = au->au_cmd[ap->ap_cdb_length + 4]; 46665245Smsmith ap->ap_channel = au->au_cmd[ap->ap_cdb_length + 5]; 46765245Smsmith ap->ap_scsi_id = au->au_cmd[ap->ap_cdb_length + 6]; 46865245Smsmith ap->ap_request_sense_length = 14; 469105419Semoore ap->ap_data_transfer_length = au->au_length; 47065245Smsmith /* XXX what about the request-sense area? does the caller want it? */ 47165245Smsmith 47265245Smsmith /* build command */ 47365245Smsmith ac->ac_data = ap; 47465245Smsmith ac->ac_length = sizeof(*ap); 47565245Smsmith ac->ac_flags |= AMR_CMD_DATAOUT; 47665245Smsmith ac->ac_ccb_data = dp; 47765245Smsmith ac->ac_ccb_length = au->au_length; 47865245Smsmith if (au->au_direction & AMR_IO_READ) 47965245Smsmith ac->ac_flags |= AMR_CMD_CCB_DATAIN; 48065245Smsmith if (au->au_direction & AMR_IO_WRITE) 48165245Smsmith ac->ac_flags |= AMR_CMD_CCB_DATAOUT; 48265245Smsmith 48365245Smsmith ac->ac_mailbox.mb_command = AMR_CMD_PASS; 48465245Smsmith 48565245Smsmith } else { 48665245Smsmith /* direct command to controller */ 48765245Smsmith mbi = (struct amr_mailbox_ioctl *)&ac->ac_mailbox; 48865245Smsmith 48965245Smsmith /* copy pertinent mailbox items */ 49065245Smsmith mbi->mb_command = au->au_cmd[0]; 49165245Smsmith mbi->mb_channel = au->au_cmd[1]; 49265245Smsmith mbi->mb_param = au->au_cmd[2]; 49365245Smsmith mbi->mb_pad[0] = au->au_cmd[3]; 49465245Smsmith mbi->mb_drive = au->au_cmd[4]; 49565245Smsmith 49665245Smsmith /* build the command */ 49765245Smsmith ac->ac_data = dp; 49865245Smsmith ac->ac_length = au->au_length; 49965245Smsmith if (au->au_direction & AMR_IO_READ) 50065245Smsmith ac->ac_flags |= AMR_CMD_DATAIN; 50165245Smsmith if (au->au_direction & AMR_IO_WRITE) 50265245Smsmith ac->ac_flags |= AMR_CMD_DATAOUT; 50365245Smsmith } 50465245Smsmith 50565245Smsmith /* run the command */ 50665245Smsmith if ((error = amr_wait_command(ac)) != 0) 50765245Smsmith break; 50865245Smsmith 50965245Smsmith /* copy out data and set status */ 51065245Smsmith if (au->au_length != 0) 51165245Smsmith error = copyout(dp, au->au_buffer, au->au_length); 51269319Smsmith debug(2, "copyout %ld bytes from %p -> %p", au->au_length, dp, au->au_buffer); 51369319Smsmith if (dp != NULL) 514107756Semoore debug(2, "%16d", (int)dp); 51565245Smsmith au->au_status = ac->ac_status; 51665245Smsmith break; 517105419Semoore 51865245Smsmith default: 51965245Smsmith debug(1, "unknown ioctl 0x%lx", cmd); 52065245Smsmith error = ENOIOCTL; 52165245Smsmith break; 52251974Smsmith } 52351974Smsmith 52465245Smsmith if (dp != NULL) 52565245Smsmith free(dp, M_DEVBUF); 52665245Smsmith if (ap != NULL) 52765245Smsmith free(ap, M_DEVBUF); 52865245Smsmith if (ac != NULL) 52965245Smsmith amr_releasecmd(ac); 53065245Smsmith return(error); 53151974Smsmith} 53251974Smsmith 53351974Smsmith/******************************************************************************** 53451974Smsmith ******************************************************************************** 53558883Smsmith Status Monitoring 53658883Smsmith ******************************************************************************** 53758883Smsmith ********************************************************************************/ 53858883Smsmith 53958883Smsmith/******************************************************************************** 54058883Smsmith * Perform a periodic check of the controller status 54158883Smsmith */ 54258883Smsmithstatic void 54358883Smsmithamr_periodic(void *data) 54458883Smsmith{ 54558883Smsmith struct amr_softc *sc = (struct amr_softc *)data; 54658883Smsmith 54765245Smsmith debug_called(2); 54858883Smsmith 54965245Smsmith /* XXX perform periodic status checks here */ 55058883Smsmith 55165245Smsmith /* compensate for missed interrupts */ 55265245Smsmith amr_done(sc); 55365245Smsmith 55458883Smsmith /* reschedule */ 55558883Smsmith sc->amr_timeout = timeout(amr_periodic, sc, hz); 55658883Smsmith} 55758883Smsmith 55858883Smsmith/******************************************************************************** 55958883Smsmith ******************************************************************************** 56051974Smsmith Command Wrappers 56151974Smsmith ******************************************************************************** 56251974Smsmith ********************************************************************************/ 56351974Smsmith 56451974Smsmith/******************************************************************************** 56551974Smsmith * Interrogate the controller for the operational parameters we require. 56651974Smsmith */ 56751974Smsmithstatic int 56851974Smsmithamr_query_controller(struct amr_softc *sc) 56951974Smsmith{ 57065245Smsmith struct amr_enquiry3 *aex; 57165245Smsmith struct amr_prodinfo *ap; 57265245Smsmith struct amr_enquiry *ae; 57365245Smsmith int ldrv; 57451974Smsmith 57565245Smsmith /* 57665245Smsmith * If we haven't found the real limit yet, let us have a couple of commands in 57765245Smsmith * order to be able to probe. 57865245Smsmith */ 57965245Smsmith if (sc->amr_maxio == 0) 58065245Smsmith sc->amr_maxio = 2; 58151974Smsmith 582106225Semoore /* 583106225Semoore * Greater than 10 byte cdb support 584106225Semoore */ 585106225Semoore sc->support_ext_cdb = amr_support_ext_cdb(sc); 586106225Semoore 587106225Semoore if(sc->support_ext_cdb) { 588106225Semoore debug(2,"supports extended CDBs."); 589106225Semoore } 590106225Semoore 59165245Smsmith /* 59265245Smsmith * Try to issue an ENQUIRY3 command 59365245Smsmith */ 59465245Smsmith if ((aex = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_ENQ3, 59565245Smsmith AMR_CONFIG_ENQ3_SOLICITED_FULL)) != NULL) { 59651974Smsmith 59765245Smsmith /* 59865245Smsmith * Fetch current state of logical drives. 59965245Smsmith */ 60065245Smsmith for (ldrv = 0; ldrv < aex->ae_numldrives; ldrv++) { 60165245Smsmith sc->amr_drive[ldrv].al_size = aex->ae_drivesize[ldrv]; 60265245Smsmith sc->amr_drive[ldrv].al_state = aex->ae_drivestate[ldrv]; 60365245Smsmith sc->amr_drive[ldrv].al_properties = aex->ae_driveprop[ldrv]; 60465245Smsmith debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size, 60565245Smsmith sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties); 60651974Smsmith } 60765245Smsmith free(aex, M_DEVBUF); 60858883Smsmith 60965245Smsmith /* 61065245Smsmith * Get product info for channel count. 61158883Smsmith */ 61265245Smsmith if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0)) == NULL) { 61365245Smsmith device_printf(sc->amr_dev, "can't obtain product data from controller\n"); 61465245Smsmith return(1); 61565245Smsmith } 61665245Smsmith sc->amr_maxdrives = 40; 61765245Smsmith sc->amr_maxchan = ap->ap_nschan; 61865245Smsmith sc->amr_maxio = ap->ap_maxio; 61965245Smsmith sc->amr_type |= AMR_TYPE_40LD; 62065245Smsmith free(ap, M_DEVBUF); 62158883Smsmith 62265245Smsmith } else { 62365245Smsmith 62465245Smsmith /* failed, try the 8LD ENQUIRY commands */ 62565245Smsmith if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0)) == NULL) { 62665245Smsmith if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0)) == NULL) { 62765245Smsmith device_printf(sc->amr_dev, "can't obtain configuration data from controller\n"); 62865245Smsmith return(1); 62965245Smsmith } 63065245Smsmith ae->ae_signature = 0; 63151974Smsmith } 63265245Smsmith 63358883Smsmith /* 63465245Smsmith * Fetch current state of logical drives. 63558883Smsmith */ 63665245Smsmith for (ldrv = 0; ldrv < ae->ae_ldrv.al_numdrives; ldrv++) { 63765245Smsmith sc->amr_drive[ldrv].al_size = ae->ae_ldrv.al_size[ldrv]; 63865245Smsmith sc->amr_drive[ldrv].al_state = ae->ae_ldrv.al_state[ldrv]; 63965245Smsmith sc->amr_drive[ldrv].al_properties = ae->ae_ldrv.al_properties[ldrv]; 64065245Smsmith debug(2, " drive %d: %d state %x properties %x\n", ldrv, sc->amr_drive[ldrv].al_size, 64165245Smsmith sc->amr_drive[ldrv].al_state, sc->amr_drive[ldrv].al_properties); 64251974Smsmith } 64365245Smsmith 64465245Smsmith sc->amr_maxdrives = 8; 64565245Smsmith sc->amr_maxchan = ae->ae_adapter.aa_channels; 64665245Smsmith sc->amr_maxio = ae->ae_adapter.aa_maxio; 64765245Smsmith free(ae, M_DEVBUF); 64851974Smsmith } 64965245Smsmith 65065245Smsmith /* 65165245Smsmith * Mark remaining drives as unused. 65265245Smsmith */ 65365245Smsmith for (; ldrv < AMR_MAXLD; ldrv++) 65465245Smsmith sc->amr_drive[ldrv].al_size = 0xffffffff; 65565245Smsmith 65665245Smsmith /* 65765245Smsmith * Cap the maximum number of outstanding I/Os. AMI's Linux driver doesn't trust 65865245Smsmith * the controller's reported value, and lockups have been seen when we do. 65965245Smsmith */ 66065245Smsmith sc->amr_maxio = imin(sc->amr_maxio, AMR_LIMITCMD); 66165245Smsmith 66251974Smsmith return(0); 66351974Smsmith} 66451974Smsmith 66551974Smsmith/******************************************************************************** 66651974Smsmith * Run a generic enquiry-style command. 66751974Smsmith */ 66851974Smsmithstatic void * 66951974Smsmithamr_enquiry(struct amr_softc *sc, size_t bufsize, u_int8_t cmd, u_int8_t cmdsub, u_int8_t cmdqual) 67051974Smsmith{ 67151974Smsmith struct amr_command *ac; 67251974Smsmith void *result; 67351974Smsmith u_int8_t *mbox; 67451974Smsmith int error; 67551974Smsmith 67665245Smsmith debug_called(1); 67751974Smsmith 67851974Smsmith error = 1; 67951974Smsmith result = NULL; 68051974Smsmith 68151974Smsmith /* get ourselves a command buffer */ 68251974Smsmith if ((ac = amr_alloccmd(sc)) == NULL) 68351974Smsmith goto out; 68451974Smsmith /* allocate the response structure */ 68551974Smsmith if ((result = malloc(bufsize, M_DEVBUF, M_NOWAIT)) == NULL) 68651974Smsmith goto out; 68765245Smsmith /* set command flags */ 68851974Smsmith ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT; 68951974Smsmith 69065245Smsmith /* point the command at our data */ 69151974Smsmith ac->ac_data = result; 69251974Smsmith ac->ac_length = bufsize; 69351974Smsmith 69451974Smsmith /* build the command proper */ 69551974Smsmith mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */ 69651974Smsmith mbox[0] = cmd; 69751974Smsmith mbox[2] = cmdsub; 69851974Smsmith mbox[3] = cmdqual; 69951974Smsmith 70058883Smsmith /* can't assume that interrupts are going to work here, so play it safe */ 701107756Semoore if (sc->amr_poll_command(ac)) 70251974Smsmith goto out; 70351974Smsmith error = ac->ac_status; 70451974Smsmith 70551974Smsmith out: 70651974Smsmith if (ac != NULL) 70751974Smsmith amr_releasecmd(ac); 70851974Smsmith if ((error != 0) && (result != NULL)) { 70951974Smsmith free(result, M_DEVBUF); 71051974Smsmith result = NULL; 71151974Smsmith } 71251974Smsmith return(result); 71351974Smsmith} 71451974Smsmith 71551974Smsmith/******************************************************************************** 71651974Smsmith * Flush the controller's internal cache, return status. 71751974Smsmith */ 71865245Smsmithint 71951974Smsmithamr_flush(struct amr_softc *sc) 72051974Smsmith{ 72151974Smsmith struct amr_command *ac; 72251974Smsmith int error; 72351974Smsmith 72451974Smsmith /* get ourselves a command buffer */ 72551974Smsmith error = 1; 72651974Smsmith if ((ac = amr_alloccmd(sc)) == NULL) 72751974Smsmith goto out; 72865245Smsmith /* set command flags */ 72951974Smsmith ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT; 73051974Smsmith 73151974Smsmith /* build the command proper */ 73251974Smsmith ac->ac_mailbox.mb_command = AMR_CMD_FLUSH; 73351974Smsmith 73458883Smsmith /* we have to poll, as the system may be going down or otherwise damaged */ 735107756Semoore if (sc->amr_poll_command(ac)) 73651974Smsmith goto out; 73751974Smsmith error = ac->ac_status; 73851974Smsmith 73951974Smsmith out: 74051974Smsmith if (ac != NULL) 74151974Smsmith amr_releasecmd(ac); 74251974Smsmith return(error); 74351974Smsmith} 74451974Smsmith 74551974Smsmith/******************************************************************************** 746106225Semoore * Detect extented cdb >> greater than 10 byte cdb support 747106225Semoore * returns '1' means this support exist 748106225Semoore * returns '0' means this support doesn't exist 749106225Semoore */ 750106225Semoorestatic int 751106225Semooreamr_support_ext_cdb(struct amr_softc *sc) 752106225Semoore{ 753106225Semoore struct amr_command *ac; 754106225Semoore u_int8_t *mbox; 755106225Semoore int error; 756106225Semoore 757106225Semoore /* get ourselves a command buffer */ 758106225Semoore error = 0; 759106225Semoore if ((ac = amr_alloccmd(sc)) == NULL) 760106225Semoore goto out; 761106225Semoore /* set command flags */ 762106225Semoore ac->ac_flags |= AMR_CMD_PRIORITY | AMR_CMD_DATAOUT; 763106225Semoore 764106225Semoore /* build the command proper */ 765106225Semoore mbox = (u_int8_t *)&ac->ac_mailbox; /* XXX want a real structure for this? */ 766106225Semoore mbox[0] = 0xA4; 767106225Semoore mbox[2] = 0x16; 768106225Semoore 769106225Semoore 770106225Semoore /* we have to poll, as the system may be going down or otherwise damaged */ 771107756Semoore if (sc->amr_poll_command(ac)) 772106225Semoore goto out; 773106225Semoore if( ac->ac_status == AMR_STATUS_SUCCESS ) { 774106225Semoore error = 1; 775106225Semoore } 776106225Semoore 777106225Semooreout: 778106225Semoore if (ac != NULL) 779106225Semoore amr_releasecmd(ac); 780106225Semoore return(error); 781106225Semoore} 782106225Semoore 783106225Semoore/******************************************************************************** 78465245Smsmith * Try to find I/O work for the controller from one or more of the work queues. 78551974Smsmith * 78665245Smsmith * We make the assumption that if the controller is not ready to take a command 78765245Smsmith * at some given time, it will generate an interrupt at some later time when 78865245Smsmith * it is. 78951974Smsmith */ 79065245Smsmithvoid 79151974Smsmithamr_startio(struct amr_softc *sc) 79251974Smsmith{ 79351974Smsmith struct amr_command *ac; 79451974Smsmith 79551974Smsmith /* spin until something prevents us from doing any work */ 79651974Smsmith for (;;) { 79751974Smsmith 79865245Smsmith /* try to get a ready command */ 79965245Smsmith ac = amr_dequeue_ready(sc); 80051974Smsmith 80165245Smsmith /* if that failed, build a command from a bio */ 80265245Smsmith if (ac == NULL) 80365245Smsmith (void)amr_bio_command(sc, &ac); 80451974Smsmith 80565245Smsmith /* if that failed, build a command from a ccb */ 80665245Smsmith if (ac == NULL) 80765245Smsmith (void)amr_cam_command(sc, &ac); 808105419Semoore 80965245Smsmith /* if we don't have anything to do, give up */ 81065245Smsmith if (ac == NULL) 81165245Smsmith break; 81251974Smsmith 81365245Smsmith /* try to give the command to the controller; if this fails save it for later and give up */ 81465245Smsmith if (amr_start(ac)) { 81565245Smsmith debug(2, "controller busy, command deferred"); 81665245Smsmith amr_requeue_ready(ac); /* XXX schedule retry very soon? */ 81765245Smsmith break; 81851974Smsmith } 81951974Smsmith } 82051974Smsmith} 82151974Smsmith 82251974Smsmith/******************************************************************************** 82351974Smsmith * Handle completion of an I/O command. 82451974Smsmith */ 82551974Smsmithstatic void 82651974Smsmithamr_completeio(struct amr_command *ac) 82751974Smsmith{ 82851974Smsmith struct amr_softc *sc = ac->ac_sc; 82951974Smsmith 83051974Smsmith if (ac->ac_status != AMR_STATUS_SUCCESS) { /* could be more verbose here? */ 83165245Smsmith ac->ac_bio->bio_error = EIO; 83265245Smsmith ac->ac_bio->bio_flags |= BIO_ERROR; 83351974Smsmith 83465245Smsmith device_printf(sc->amr_dev, "I/O error - 0x%x\n", ac->ac_status); 83565245Smsmith/* amr_printcommand(ac);*/ 83651974Smsmith } 83765245Smsmith amrd_intr(ac->ac_bio); 83865245Smsmith amr_releasecmd(ac); 83951974Smsmith} 84051974Smsmith 84151974Smsmith/******************************************************************************** 84251974Smsmith ******************************************************************************** 84351974Smsmith Command Processing 84451974Smsmith ******************************************************************************** 84551974Smsmith ********************************************************************************/ 84651974Smsmith 84751974Smsmith/******************************************************************************** 84865245Smsmith * Convert a bio off the top of the bio queue into a command. 84965245Smsmith */ 85065245Smsmithstatic int 85165245Smsmithamr_bio_command(struct amr_softc *sc, struct amr_command **acp) 85265245Smsmith{ 85365245Smsmith struct amr_command *ac; 85465245Smsmith struct amrd_softc *amrd; 85565245Smsmith struct bio *bio; 85665245Smsmith int error; 85765245Smsmith int blkcount; 85865245Smsmith int driveno; 85965245Smsmith int cmd; 86065245Smsmith 86165245Smsmith ac = NULL; 86265245Smsmith error = 0; 86365245Smsmith 86465245Smsmith /* get a bio to work on */ 86565245Smsmith if ((bio = amr_dequeue_bio(sc)) == NULL) 86665245Smsmith goto out; 86765245Smsmith 86865245Smsmith /* get a command */ 86965245Smsmith if ((ac = amr_alloccmd(sc)) == NULL) { 87065245Smsmith error = ENOMEM; 87165245Smsmith goto out; 87265245Smsmith } 87365245Smsmith 87465245Smsmith /* connect the bio to the command */ 87565245Smsmith ac->ac_complete = amr_completeio; 87665245Smsmith ac->ac_bio = bio; 87765245Smsmith ac->ac_data = bio->bio_data; 87865245Smsmith ac->ac_length = bio->bio_bcount; 87965245Smsmith if (BIO_IS_READ(bio)) { 88065245Smsmith ac->ac_flags |= AMR_CMD_DATAIN; 88165245Smsmith cmd = AMR_CMD_LREAD; 88265245Smsmith } else { 88365245Smsmith ac->ac_flags |= AMR_CMD_DATAOUT; 88465245Smsmith cmd = AMR_CMD_LWRITE; 88565245Smsmith } 88665245Smsmith amrd = (struct amrd_softc *)bio->bio_dev->si_drv1; 88765245Smsmith driveno = amrd->amrd_drive - sc->amr_drive; 88865245Smsmith blkcount = (bio->bio_bcount + AMR_BLKSIZE - 1) / AMR_BLKSIZE; 88965245Smsmith 89065245Smsmith ac->ac_mailbox.mb_command = cmd; 89165245Smsmith ac->ac_mailbox.mb_blkcount = blkcount; 89265245Smsmith ac->ac_mailbox.mb_lba = bio->bio_pblkno; 89365245Smsmith ac->ac_mailbox.mb_drive = driveno; 89465245Smsmith /* we fill in the s/g related data when the command is mapped */ 89565245Smsmith 89665245Smsmith if ((bio->bio_pblkno + blkcount) > sc->amr_drive[driveno].al_size) 89792610Sbde device_printf(sc->amr_dev, "I/O beyond end of unit (%lld,%d > %lu)\n", 89892610Sbde (long long)bio->bio_pblkno, blkcount, 89992610Sbde (u_long)sc->amr_drive[driveno].al_size); 90065245Smsmith 90165245Smsmithout: 90265245Smsmith if (error != 0) { 90365245Smsmith if (ac != NULL) 90465245Smsmith amr_releasecmd(ac); 90565245Smsmith if (bio != NULL) /* this breaks ordering... */ 90665245Smsmith amr_enqueue_bio(sc, bio); 90765245Smsmith } 90865245Smsmith *acp = ac; 90965245Smsmith return(error); 91065245Smsmith} 91165245Smsmith 91265245Smsmith/******************************************************************************** 91351974Smsmith * Take a command, submit it to the controller and sleep until it completes 91451974Smsmith * or fails. Interrupts must be enabled, returns nonzero on error. 91551974Smsmith */ 91651974Smsmithstatic int 91751974Smsmithamr_wait_command(struct amr_command *ac) 91851974Smsmith{ 91951974Smsmith int error, count; 92051974Smsmith 92165245Smsmith debug_called(1); 92251974Smsmith 92351974Smsmith ac->ac_complete = NULL; 92465245Smsmith ac->ac_flags |= AMR_CMD_SLEEP; 92551974Smsmith if ((error = amr_start(ac)) != 0) 92651974Smsmith return(error); 92751974Smsmith 92851974Smsmith count = 0; 92951974Smsmith /* XXX better timeout? */ 93065245Smsmith while ((ac->ac_flags & AMR_CMD_BUSY) && (count < 30)) { 93165245Smsmith tsleep(ac, PRIBIO | PCATCH, "amrwcmd", hz); 93251974Smsmith } 93351974Smsmith return(0); 93451974Smsmith} 93551974Smsmith 93651974Smsmith/******************************************************************************** 93751974Smsmith * Take a command, submit it to the controller and busy-wait for it to return. 93851974Smsmith * Returns nonzero on error. Can be safely called with interrupts enabled. 93951974Smsmith */ 94051974Smsmithstatic int 941107756Semooreamr_std_poll_command(struct amr_command *ac) 94251974Smsmith{ 94351974Smsmith struct amr_softc *sc = ac->ac_sc; 94465245Smsmith int error, count; 94551974Smsmith 94665245Smsmith debug_called(2); 94751974Smsmith 94851974Smsmith ac->ac_complete = NULL; 94951974Smsmith if ((error = amr_start(ac)) != 0) 95051974Smsmith return(error); 95151974Smsmith 95251974Smsmith count = 0; 95351974Smsmith do { 95451974Smsmith /* 95551974Smsmith * Poll for completion, although the interrupt handler may beat us to it. 95651974Smsmith * Note that the timeout here is somewhat arbitrary. 95751974Smsmith */ 95851974Smsmith amr_done(sc); 95965245Smsmith DELAY(1000); 96065245Smsmith } while ((ac->ac_flags & AMR_CMD_BUSY) && (count++ < 1000)); 96165245Smsmith if (!(ac->ac_flags & AMR_CMD_BUSY)) { 96251974Smsmith error = 0; 96351974Smsmith } else { 96465245Smsmith /* XXX the slot is now marked permanently busy */ 96551974Smsmith error = EIO; 96665245Smsmith device_printf(sc->amr_dev, "polled command timeout\n"); 96751974Smsmith } 96851974Smsmith return(error); 96951974Smsmith} 97051974Smsmith 97151974Smsmith/******************************************************************************** 972107756Semoore * Take a command, submit it to the controller and busy-wait for it to return. 973107756Semoore * Returns nonzero on error. Can be safely called with interrupts enabled. 974107756Semoore */ 975107756Semoorestatic int 976107756Semooreamr_quartz_poll_command(struct amr_command *ac) 977107756Semoore{ 978107756Semoore struct amr_softc *sc = ac->ac_sc; 979107756Semoore int s; 980107756Semoore 981107756Semoore debug_called(2); 982107756Semoore 983107756Semoore /* now we have a slot, we can map the command (unmapped in amr_complete) */ 984107756Semoore amr_mapcmd(ac); 985107756Semoore 986107756Semoore s = splbio(); 987107756Semoore 988107756Semoore if(sc->amr_busyslots) { 989107756Semoore device_printf(sc->amr_dev, "adapter is busy"); 990107756Semoore splx(s); 991107756Semoore amr_unmapcmd(ac); 992107756Semoore ac->ac_status=0; 993107756Semoore return(1); 994107756Semoore } 995107756Semoore 996107756Semoore bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE); 997107756Semoore 998107756Semoore /* clear the poll/ack fields in the mailbox */ 999107756Semoore sc->amr_mailbox->mb_ident = 0xFE; 1000107756Semoore sc->amr_mailbox->mb_nstatus = 0xFF; 1001107756Semoore sc->amr_mailbox->mb_status = 0xFF; 1002107756Semoore sc->amr_mailbox->mb_poll = 0; 1003107756Semoore sc->amr_mailbox->mb_ack = 0; 1004107756Semoore 1005107756Semoore AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT); 1006107756Semoore 1007107756Semoore while(sc->amr_mailbox->mb_nstatus == 0xFF); 1008107756Semoore while(sc->amr_mailbox->mb_status == 0xFF); 1009107756Semoore while(sc->amr_mailbox->mb_poll != 0x77); 1010107756Semoore sc->amr_mailbox->mb_poll = 0; 1011107756Semoore sc->amr_mailbox->mb_ack = 0x77; 1012107756Semoore 1013107756Semoore /* acknowledge that we have the commands */ 1014107756Semoore AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK); 1015107756Semoore 1016107756Semoore splx(s); 1017107756Semoore 1018107756Semoore /* unmap the command's data buffer */ 1019107756Semoore amr_unmapcmd(ac); 1020107756Semoore 1021107756Semoore ac->ac_status=0; 1022107756Semoore return(0); 1023107756Semoore} 1024107756Semoore 1025107756Semoore/******************************************************************************** 102665245Smsmith * Get a free command slot for a command if it doesn't already have one. 102765245Smsmith * 102865245Smsmith * May be safely called multiple times for a given command. 102951974Smsmith */ 103051974Smsmithstatic int 103151974Smsmithamr_getslot(struct amr_command *ac) 103251974Smsmith{ 103351974Smsmith struct amr_softc *sc = ac->ac_sc; 103465245Smsmith int s, slot, limit, error; 103551974Smsmith 103665245Smsmith debug_called(3); 103765245Smsmith 103865245Smsmith /* if the command already has a slot, don't try to give it another one */ 103965245Smsmith if (ac->ac_slot != 0) 104065245Smsmith return(0); 104165245Smsmith 104251974Smsmith /* enforce slot usage limit */ 104351974Smsmith limit = (ac->ac_flags & AMR_CMD_PRIORITY) ? sc->amr_maxio : sc->amr_maxio - 4; 104465245Smsmith if (sc->amr_busyslots > limit) 104551974Smsmith return(EBUSY); 104651974Smsmith 104751974Smsmith /* 104865245Smsmith * Allocate a slot. XXX linear scan is slow 104951974Smsmith */ 105065245Smsmith error = EBUSY; 105151974Smsmith s = splbio(); 105251974Smsmith for (slot = 0; slot < sc->amr_maxio; slot++) { 105365245Smsmith if (sc->amr_busycmd[slot] == NULL) { 105465245Smsmith sc->amr_busycmd[slot] = ac; 105565245Smsmith sc->amr_busyslots++; 105665245Smsmith ac->ac_slot = slot; 105765245Smsmith error = 0; 105851974Smsmith break; 105965245Smsmith } 106051974Smsmith } 106151974Smsmith splx(s); 106251974Smsmith 106365245Smsmith return(error); 106451974Smsmith} 106551974Smsmith 106651974Smsmith/******************************************************************************** 106765245Smsmith * Map/unmap (ac)'s data in the controller's addressable space as required. 106865245Smsmith * 106965245Smsmith * These functions may be safely called multiple times on a given command. 107051974Smsmith */ 107151974Smsmithstatic void 107251974Smsmithamr_setup_dmamap(void *arg, bus_dma_segment_t *segs, int nsegments, int error) 107351974Smsmith{ 107451974Smsmith struct amr_command *ac = (struct amr_command *)arg; 107551974Smsmith struct amr_softc *sc = ac->ac_sc; 107651974Smsmith struct amr_sgentry *sg; 107751974Smsmith int i; 107869319Smsmith u_int8_t *sgc; 107951974Smsmith 108065245Smsmith debug_called(3); 108151974Smsmith 108251974Smsmith /* get base address of s/g table */ 108351974Smsmith sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG); 108451974Smsmith 108565245Smsmith /* save data physical address */ 108651974Smsmith ac->ac_dataphys = segs[0].ds_addr; 108751974Smsmith 108869319Smsmith /* for AMR_CMD_CONFIG the s/g count goes elsewhere */ 108969319Smsmith if (ac->ac_mailbox.mb_command == AMR_CMD_CONFIG) { 109069319Smsmith sgc = &(((struct amr_mailbox_ioctl *)&ac->ac_mailbox)->mb_param); 109169319Smsmith } else { 109269319Smsmith sgc = &ac->ac_mailbox.mb_nsgelem; 109369319Smsmith } 109469319Smsmith 109565245Smsmith /* decide whether we need to populate the s/g table */ 109665245Smsmith if (nsegments < 2) { 109769319Smsmith *sgc = 0; 1098105419Semoore ac->ac_mailbox.mb_nsgelem = 0; 109965245Smsmith ac->ac_mailbox.mb_physaddr = ac->ac_dataphys; 110065245Smsmith } else { 1101105419Semoore ac->ac_mailbox.mb_nsgelem = nsegments; 110269319Smsmith *sgc = nsegments; 110365245Smsmith ac->ac_mailbox.mb_physaddr = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry)); 110465245Smsmith for (i = 0; i < nsegments; i++, sg++) { 110565245Smsmith sg->sg_addr = segs[i].ds_addr; 110665245Smsmith sg->sg_count = segs[i].ds_len; 110765245Smsmith } 110865245Smsmith } 110965245Smsmith} 111065245Smsmith 111165245Smsmithstatic void 111265245Smsmithamr_setup_ccbmap(void *arg, bus_dma_segment_t *segs, int nsegments, int error) 111365245Smsmith{ 1114105419Semoore struct amr_command *ac = (struct amr_command *)arg; 1115105419Semoore struct amr_softc *sc = ac->ac_sc; 1116105419Semoore struct amr_sgentry *sg; 1117105419Semoore struct amr_passthrough *ap = (struct amr_passthrough *)ac->ac_data; 1118106252Semoore struct amr_ext_passthrough *aep = (struct amr_ext_passthrough *)ac->ac_data; 1119105419Semoore int i; 112065245Smsmith 112165245Smsmith /* get base address of s/g table */ 112265245Smsmith sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG); 112365245Smsmith 1124105419Semoore /* decide whether we need to populate the s/g table */ 1125106225Semoore if( ac->ac_mailbox.mb_command == AMR_CMD_EXTPASS ) { 1126106225Semoore if (nsegments < 2) { 1127106225Semoore aep->ap_no_sg_elements = 0; 1128106225Semoore aep->ap_data_transfer_address = segs[0].ds_addr; 1129106225Semoore } else { 1130106225Semoore /* save s/g table information in passthrough */ 1131106225Semoore aep->ap_no_sg_elements = nsegments; 1132106225Semoore aep->ap_data_transfer_address = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry)); 1133106225Semoore /* populate s/g table (overwrites previous call which mapped the passthrough) */ 1134106225Semoore for (i = 0; i < nsegments; i++, sg++) { 1135106225Semoore sg->sg_addr = segs[i].ds_addr; 1136106225Semoore sg->sg_count = segs[i].ds_len; 1137106225Semoore debug(3, " %d: 0x%x/%d", i, sg->sg_addr, sg->sg_count); 1138106225Semoore } 1139106225Semoore } 1140106225Semoore debug(3, "slot %d %d segments at 0x%x, passthrough at 0x%x", ac->ac_slot, 1141106225Semoore aep->ap_no_sg_elements, aep->ap_data_transfer_address, ac->ac_dataphys); 1142105419Semoore } else { 1143106225Semoore if (nsegments < 2) { 1144106225Semoore ap->ap_no_sg_elements = 0; 1145106225Semoore ap->ap_data_transfer_address = segs[0].ds_addr; 1146106225Semoore } else { 1147106225Semoore /* save s/g table information in passthrough */ 1148106225Semoore ap->ap_no_sg_elements = nsegments; 1149106225Semoore ap->ap_data_transfer_address = sc->amr_sgbusaddr + (ac->ac_slot * AMR_NSEG * sizeof(struct amr_sgentry)); 1150106225Semoore /* populate s/g table (overwrites previous call which mapped the passthrough) */ 1151106225Semoore for (i = 0; i < nsegments; i++, sg++) { 1152105419Semoore sg->sg_addr = segs[i].ds_addr; 1153105419Semoore sg->sg_count = segs[i].ds_len; 1154105419Semoore debug(3, " %d: 0x%x/%d", i, sg->sg_addr, sg->sg_count); 1155106225Semoore } 1156105419Semoore } 1157106225Semoore debug(3, "slot %d %d segments at 0x%x, passthrough at 0x%x", ac->ac_slot, 1158106225Semoore ap->ap_no_sg_elements, ap->ap_data_transfer_address, ac->ac_dataphys); 1159105419Semoore } 116051974Smsmith} 116151974Smsmith 116251974Smsmithstatic void 116351974Smsmithamr_mapcmd(struct amr_command *ac) 116451974Smsmith{ 116551974Smsmith struct amr_softc *sc = ac->ac_sc; 116651974Smsmith 116769319Smsmith debug_called(3); 116851974Smsmith 116965245Smsmith /* if the command involves data at all, and hasn't been mapped */ 117065245Smsmith if (!(ac->ac_flags & AMR_CMD_MAPPED)) { 117165245Smsmith 117265245Smsmith if (ac->ac_data != NULL) { 117365245Smsmith /* map the data buffers into bus space and build the s/g list */ 1174105419Semoore bus_dmamap_load(sc->amr_buffer_dmat, ac->ac_dmamap, ac->ac_data, ac->ac_length, 117565245Smsmith amr_setup_dmamap, ac, 0); 117665245Smsmith if (ac->ac_flags & AMR_CMD_DATAIN) 117765245Smsmith bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_PREREAD); 117865245Smsmith if (ac->ac_flags & AMR_CMD_DATAOUT) 117965245Smsmith bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_PREWRITE); 118065245Smsmith } 118165245Smsmith 118265245Smsmith if (ac->ac_ccb_data != NULL) { 1183105419Semoore bus_dmamap_load(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, ac->ac_ccb_data, ac->ac_ccb_length, 118465245Smsmith amr_setup_ccbmap, ac, 0); 118565245Smsmith if (ac->ac_flags & AMR_CMD_CCB_DATAIN) 118665245Smsmith bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_PREREAD); 118765245Smsmith if (ac->ac_flags & AMR_CMD_CCB_DATAOUT) 118865245Smsmith bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_PREWRITE); 118965245Smsmith } 119065245Smsmith ac->ac_flags |= AMR_CMD_MAPPED; 119151974Smsmith } 119251974Smsmith} 119351974Smsmith 119451974Smsmithstatic void 119551974Smsmithamr_unmapcmd(struct amr_command *ac) 119651974Smsmith{ 119751974Smsmith struct amr_softc *sc = ac->ac_sc; 119851974Smsmith 119969319Smsmith debug_called(3); 120051974Smsmith 120165245Smsmith /* if the command involved data at all and was mapped */ 120265245Smsmith if (ac->ac_flags & AMR_CMD_MAPPED) { 120351974Smsmith 120465245Smsmith if (ac->ac_data != NULL) { 120565245Smsmith if (ac->ac_flags & AMR_CMD_DATAIN) 120665245Smsmith bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_POSTREAD); 120765245Smsmith if (ac->ac_flags & AMR_CMD_DATAOUT) 120865245Smsmith bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_dmamap, BUS_DMASYNC_POSTWRITE); 120965245Smsmith bus_dmamap_unload(sc->amr_buffer_dmat, ac->ac_dmamap); 121065245Smsmith } 121165245Smsmith 121265245Smsmith if (ac->ac_ccb_data != NULL) { 121365245Smsmith if (ac->ac_flags & AMR_CMD_CCB_DATAIN) 121465245Smsmith bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_POSTREAD); 121565245Smsmith if (ac->ac_flags & AMR_CMD_CCB_DATAOUT) 121665245Smsmith bus_dmamap_sync(sc->amr_buffer_dmat, ac->ac_ccb_dmamap, BUS_DMASYNC_POSTWRITE); 121765245Smsmith bus_dmamap_unload(sc->amr_buffer_dmat, ac->ac_ccb_dmamap); 121865245Smsmith } 121965245Smsmith ac->ac_flags &= ~AMR_CMD_MAPPED; 122051974Smsmith } 122151974Smsmith} 122251974Smsmith 122351974Smsmith/******************************************************************************** 122465245Smsmith * Take a command and give it to the controller, returns 0 if successful, or 122565245Smsmith * EBUSY if the command should be retried later. 122651974Smsmith */ 122751974Smsmithstatic int 122851974Smsmithamr_start(struct amr_command *ac) 122951974Smsmith{ 123051974Smsmith struct amr_softc *sc = ac->ac_sc; 123158883Smsmith int done, s, i; 1232105419Semoore 123369319Smsmith debug_called(3); 123451974Smsmith 123565245Smsmith /* mark command as busy so that polling consumer can tell */ 123665245Smsmith ac->ac_flags |= AMR_CMD_BUSY; 123765245Smsmith 123865245Smsmith /* get a command slot (freed in amr_done) */ 123965245Smsmith if (amr_getslot(ac)) 124065245Smsmith return(EBUSY); 124165245Smsmith 124265245Smsmith /* now we have a slot, we can map the command (unmapped in amr_complete) */ 124365245Smsmith amr_mapcmd(ac); 124465245Smsmith 124565245Smsmith /* mark the new mailbox we are going to copy in as busy */ 124665245Smsmith ac->ac_mailbox.mb_busy = 1; 124765245Smsmith 124865245Smsmith /* clear the poll/ack fields in the mailbox */ 124965245Smsmith sc->amr_mailbox->mb_poll = 0; 125065245Smsmith sc->amr_mailbox->mb_ack = 0; 125165245Smsmith 125251974Smsmith /* 125351974Smsmith * Save the slot number so that we can locate this command when complete. 125451974Smsmith * Note that ident = 0 seems to be special, so we don't use it. 125551974Smsmith */ 125651974Smsmith ac->ac_mailbox.mb_ident = ac->ac_slot + 1; 125751974Smsmith 125858883Smsmith /* 125965245Smsmith * Spin waiting for the mailbox, give up after ~1 second. We expect the 126065245Smsmith * controller to be able to handle our I/O. 126165245Smsmith * 126265245Smsmith * XXX perhaps we should wait for less time, and count on the deferred command 126365245Smsmith * handling to deal with retries? 126458883Smsmith */ 126569319Smsmith debug(4, "wait for mailbox"); 126658883Smsmith for (i = 10000, done = 0; (i > 0) && !done; i--) { 126751974Smsmith s = splbio(); 126851974Smsmith 126951974Smsmith /* is the mailbox free? */ 127051974Smsmith if (sc->amr_mailbox->mb_busy == 0) { 127169319Smsmith debug(4, "got mailbox"); 127251974Smsmith sc->amr_mailbox64->mb64_segment = 0; 127365245Smsmith bcopy(&ac->ac_mailbox, (void *)(uintptr_t)(volatile void *)sc->amr_mailbox, AMR_MBOX_CMDSIZE); 127451974Smsmith done = 1; 127551974Smsmith 127665245Smsmith /* not free, spin waiting */ 127751974Smsmith } else { 127869319Smsmith debug(4, "busy flag %x\n", sc->amr_mailbox->mb_busy); 127958883Smsmith /* this is somewhat ugly */ 128058883Smsmith DELAY(100); 128151974Smsmith } 128258883Smsmith splx(s); /* drop spl to allow completion interrupts */ 128351974Smsmith } 128465245Smsmith 128565245Smsmith /* 128665245Smsmith * Now give the command to the controller 128765245Smsmith */ 128851974Smsmith if (done) { 128965245Smsmith if (sc->amr_submit_command(sc)) { 129065245Smsmith /* the controller wasn't ready to take the command, forget that we tried to post it */ 129165245Smsmith sc->amr_mailbox->mb_busy = 0; 129265245Smsmith return(EBUSY); 129365245Smsmith } 129469319Smsmith debug(3, "posted command"); 129551974Smsmith return(0); 129651974Smsmith } 129751974Smsmith 129851974Smsmith /* 129965245Smsmith * The controller wouldn't take the command. Return the command as busy 130065245Smsmith * so that it is retried later. 130151974Smsmith */ 130265245Smsmith return(EBUSY); 130351974Smsmith} 130451974Smsmith 130551974Smsmith/******************************************************************************** 130651974Smsmith * Extract one or more completed commands from the controller (sc) 130751974Smsmith * 130852543Smsmith * Returns nonzero if any commands on the work queue were marked as completed. 130951974Smsmith */ 131065245Smsmithint 131151974Smsmithamr_done(struct amr_softc *sc) 131251974Smsmith{ 131351974Smsmith struct amr_command *ac; 131451974Smsmith struct amr_mailbox mbox; 131565245Smsmith int i, idx, result; 131651974Smsmith 131769319Smsmith debug_called(3); 131851974Smsmith 131951974Smsmith /* See if there's anything for us to do */ 132051974Smsmith result = 0; 132151974Smsmith 132258883Smsmith /* loop collecting completed commands */ 132358883Smsmith for (;;) { 132458883Smsmith /* poll for a completed command's identifier and status */ 132558883Smsmith if (sc->amr_get_work(sc, &mbox)) { 132658883Smsmith result = 1; 132758883Smsmith 132858883Smsmith /* iterate over completed commands in this result */ 132958883Smsmith for (i = 0; i < mbox.mb_nstatus; i++) { 133058883Smsmith /* get pointer to busy command */ 133158883Smsmith idx = mbox.mb_completed[i] - 1; 133258883Smsmith ac = sc->amr_busycmd[idx]; 133351974Smsmith 133458883Smsmith /* really a busy command? */ 133558883Smsmith if (ac != NULL) { 133658883Smsmith 133758883Smsmith /* pull the command from the busy index */ 133858883Smsmith sc->amr_busycmd[idx] = NULL; 133965245Smsmith sc->amr_busyslots--; 134051974Smsmith 134165245Smsmith /* save status for later use */ 134265245Smsmith ac->ac_status = mbox.mb_status; 134365245Smsmith amr_enqueue_completed(ac); 134465245Smsmith debug(3, "completed command with status %x", mbox.mb_status); 134565245Smsmith } else { 134665245Smsmith device_printf(sc->amr_dev, "bad slot %d completed\n", idx); 134751974Smsmith } 134851974Smsmith } 134958883Smsmith } else { 135065245Smsmith break; /* no work */ 135151974Smsmith } 135251974Smsmith } 135358883Smsmith 135458883Smsmith /* if we've completed any commands, try posting some more */ 135558883Smsmith if (result) 135658883Smsmith amr_startio(sc); 135758883Smsmith 135858883Smsmith /* handle completion and timeouts */ 135965245Smsmith#if __FreeBSD_version >= 500005 136065245Smsmith if (sc->amr_state & AMR_STATE_INTEN) 136165245Smsmith taskqueue_enqueue(taskqueue_swi, &sc->amr_task_complete); 136265245Smsmith else 136365245Smsmith#endif 136465245Smsmith amr_complete(sc, 0); 136558883Smsmith 136651974Smsmith return(result); 136751974Smsmith} 136851974Smsmith 136951974Smsmith/******************************************************************************** 137051974Smsmith * Do completion processing on done commands on (sc) 137151974Smsmith */ 137251974Smsmithstatic void 137365245Smsmithamr_complete(void *context, int pending) 137451974Smsmith{ 137565245Smsmith struct amr_softc *sc = (struct amr_softc *)context; 137665245Smsmith struct amr_command *ac; 137751974Smsmith 137869319Smsmith debug_called(3); 137951974Smsmith 138065245Smsmith /* pull completed commands off the queue */ 138165245Smsmith for (;;) { 138265245Smsmith ac = amr_dequeue_completed(sc); 138365245Smsmith if (ac == NULL) 138465245Smsmith break; 138558883Smsmith 138665245Smsmith /* unmap the command's data buffer */ 138765245Smsmith amr_unmapcmd(ac); 138851974Smsmith 138965245Smsmith /* unbusy the command */ 139065245Smsmith ac->ac_flags &= ~AMR_CMD_BUSY; 139151974Smsmith 139265245Smsmith /* 139365245Smsmith * Is there a completion handler? 139465245Smsmith */ 139565245Smsmith if (ac->ac_complete != NULL) { 139665245Smsmith ac->ac_complete(ac); 139765245Smsmith 139851974Smsmith /* 139965245Smsmith * Is someone sleeping on this one? 140051974Smsmith */ 140165245Smsmith } else if (ac->ac_flags & AMR_CMD_SLEEP) { 140265245Smsmith wakeup(ac); 140351974Smsmith } 140451974Smsmith } 140551974Smsmith} 140651974Smsmith 140751974Smsmith/******************************************************************************** 140851974Smsmith ******************************************************************************** 140951974Smsmith Command Buffer Management 141051974Smsmith ******************************************************************************** 141151974Smsmith ********************************************************************************/ 141251974Smsmith 141351974Smsmith/******************************************************************************** 141451974Smsmith * Get a new command buffer. 141551974Smsmith * 141651974Smsmith * This may return NULL in low-memory cases. 141751974Smsmith * 141851974Smsmith * If possible, we recycle a command buffer that's been used before. 141951974Smsmith */ 142065245Smsmithstruct amr_command * 142151974Smsmithamr_alloccmd(struct amr_softc *sc) 142251974Smsmith{ 142351974Smsmith struct amr_command *ac; 142451974Smsmith 142565245Smsmith debug_called(3); 142651974Smsmith 142765245Smsmith ac = amr_dequeue_free(sc); 142851974Smsmith if (ac == NULL) { 142965245Smsmith amr_alloccmd_cluster(sc); 143065245Smsmith ac = amr_dequeue_free(sc); 143151974Smsmith } 143265245Smsmith if (ac == NULL) 143365245Smsmith return(NULL); 143465245Smsmith 143565245Smsmith /* clear out significant fields */ 143665245Smsmith ac->ac_slot = 0; 143765245Smsmith ac->ac_status = 0; 143851974Smsmith bzero(&ac->ac_mailbox, sizeof(struct amr_mailbox)); 143965245Smsmith ac->ac_flags = 0; 144065245Smsmith ac->ac_bio = NULL; 144165245Smsmith ac->ac_data = NULL; 144265245Smsmith ac->ac_ccb_data = NULL; 144365245Smsmith ac->ac_complete = NULL; 144451974Smsmith return(ac); 144551974Smsmith} 144651974Smsmith 144751974Smsmith/******************************************************************************** 144851974Smsmith * Release a command buffer for recycling. 144951974Smsmith */ 145065245Smsmithvoid 145151974Smsmithamr_releasecmd(struct amr_command *ac) 145251974Smsmith{ 145365245Smsmith debug_called(3); 145451974Smsmith 145565245Smsmith amr_enqueue_free(ac); 145651974Smsmith} 145751974Smsmith 145851974Smsmith/******************************************************************************** 145965245Smsmith * Allocate a new command cluster and initialise it. 146051974Smsmith */ 1461104094Sphkstatic void 146265245Smsmithamr_alloccmd_cluster(struct amr_softc *sc) 146351974Smsmith{ 146465245Smsmith struct amr_command_cluster *acc; 146565245Smsmith struct amr_command *ac; 146665245Smsmith int s, i; 146751974Smsmith 146865245Smsmith acc = malloc(AMR_CMD_CLUSTERSIZE, M_DEVBUF, M_NOWAIT); 146965245Smsmith if (acc != NULL) { 147065245Smsmith s = splbio(); 147165245Smsmith TAILQ_INSERT_TAIL(&sc->amr_cmd_clusters, acc, acc_link); 147265245Smsmith splx(s); 147365245Smsmith for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++) { 147465245Smsmith ac = &acc->acc_command[i]; 147565245Smsmith bzero(ac, sizeof(*ac)); 147665245Smsmith ac->ac_sc = sc; 147765245Smsmith if (!bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_dmamap) && 147865245Smsmith !bus_dmamap_create(sc->amr_buffer_dmat, 0, &ac->ac_ccb_dmamap)) 147965245Smsmith amr_releasecmd(ac); 148065245Smsmith } 148165245Smsmith } 148251974Smsmith} 148351974Smsmith 148451974Smsmith/******************************************************************************** 148565245Smsmith * Free a command cluster 148665245Smsmith */ 1487104094Sphkstatic void 148865245Smsmithamr_freecmd_cluster(struct amr_command_cluster *acc) 148965245Smsmith{ 149065245Smsmith struct amr_softc *sc = acc->acc_command[0].ac_sc; 149165245Smsmith int i; 149265245Smsmith 149365245Smsmith for (i = 0; i < AMR_CMD_CLUSTERCOUNT; i++) 149465245Smsmith bus_dmamap_destroy(sc->amr_buffer_dmat, acc->acc_command[i].ac_dmamap); 149565245Smsmith free(acc, M_DEVBUF); 149665245Smsmith} 149765245Smsmith 149865245Smsmith/******************************************************************************** 149951974Smsmith ******************************************************************************** 150051974Smsmith Interface-specific Shims 150151974Smsmith ******************************************************************************** 150251974Smsmith ********************************************************************************/ 150351974Smsmith 150451974Smsmith/******************************************************************************** 150551974Smsmith * Tell the controller that the mailbox contains a valid command 150651974Smsmith */ 150765245Smsmithstatic int 150851974Smsmithamr_quartz_submit_command(struct amr_softc *sc) 150951974Smsmith{ 151065245Smsmith debug_called(3); 151151974Smsmith 151265245Smsmith if (AMR_QGET_IDB(sc) & AMR_QIDB_SUBMIT) 151365245Smsmith return(EBUSY); 151451974Smsmith AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_SUBMIT); 151565245Smsmith return(0); 151651974Smsmith} 151751974Smsmith 151865245Smsmithstatic int 151951974Smsmithamr_std_submit_command(struct amr_softc *sc) 152051974Smsmith{ 152165245Smsmith debug_called(3); 152251974Smsmith 152365245Smsmith if (AMR_SGET_MBSTAT(sc) & AMR_SMBOX_BUSYFLAG) 152465245Smsmith return(EBUSY); 152551974Smsmith AMR_SPOST_COMMAND(sc); 152665245Smsmith return(0); 152751974Smsmith} 152851974Smsmith 152951974Smsmith/******************************************************************************** 153051974Smsmith * Claim any work that the controller has completed; acknowledge completion, 153151974Smsmith * save details of the completion in (mbsave) 153251974Smsmith */ 153351974Smsmithstatic int 153451974Smsmithamr_quartz_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave) 153551974Smsmith{ 153651974Smsmith int s, worked; 153751974Smsmith u_int32_t outd; 153851974Smsmith 153965245Smsmith debug_called(3); 154065245Smsmith 154151974Smsmith worked = 0; 154251974Smsmith s = splbio(); 154351974Smsmith 154451974Smsmith /* work waiting for us? */ 154551974Smsmith if ((outd = AMR_QGET_ODB(sc)) == AMR_QODB_READY) { 154651974Smsmith 154751974Smsmith /* save mailbox, which contains a list of completed commands */ 154865245Smsmith bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave)); 154951974Smsmith 155065245Smsmith /* acknowledge interrupt */ 155165245Smsmith AMR_QPUT_ODB(sc, AMR_QODB_READY); 155265245Smsmith 155351974Smsmith /* acknowledge that we have the commands */ 155451974Smsmith AMR_QPUT_IDB(sc, sc->amr_mailboxphys | AMR_QIDB_ACK); 155565245Smsmith 155665763Smsmith#ifndef AMR_QUARTZ_GOFASTER 155765245Smsmith /* 155865245Smsmith * This waits for the controller to notice that we've taken the 155965245Smsmith * command from it. It's very inefficient, and we shouldn't do it, 156065245Smsmith * but if we remove this code, we stop completing commands under 156165245Smsmith * load. 156265245Smsmith * 156365245Smsmith * Peter J says we shouldn't do this. The documentation says we 156465245Smsmith * should. Who is right? 156565245Smsmith */ 156651974Smsmith while(AMR_QGET_IDB(sc) & AMR_QIDB_ACK) 156751974Smsmith ; /* XXX aiee! what if it dies? */ 156865245Smsmith#endif 156965245Smsmith 157051974Smsmith worked = 1; /* got some work */ 157151974Smsmith } 157251974Smsmith 157351974Smsmith splx(s); 157451974Smsmith return(worked); 157551974Smsmith} 157651974Smsmith 157751974Smsmithstatic int 157851974Smsmithamr_std_get_work(struct amr_softc *sc, struct amr_mailbox *mbsave) 157951974Smsmith{ 158051974Smsmith int s, worked; 158151974Smsmith u_int8_t istat; 158251974Smsmith 158365245Smsmith debug_called(3); 158451974Smsmith 158551974Smsmith worked = 0; 158651974Smsmith s = splbio(); 158751974Smsmith 158851974Smsmith /* check for valid interrupt status */ 158951974Smsmith istat = AMR_SGET_ISTAT(sc); 159051974Smsmith if ((istat & AMR_SINTR_VALID) != 0) { 159151974Smsmith AMR_SPUT_ISTAT(sc, istat); /* ack interrupt status */ 159251974Smsmith 159351974Smsmith /* save mailbox, which contains a list of completed commands */ 159465245Smsmith bcopy((void *)(uintptr_t)(volatile void *)sc->amr_mailbox, mbsave, sizeof(*mbsave)); 159551974Smsmith 159651974Smsmith AMR_SACK_INTERRUPT(sc); /* acknowledge we have the mailbox */ 159751974Smsmith worked = 1; 159851974Smsmith } 159951974Smsmith 160051974Smsmith splx(s); 160151974Smsmith return(worked); 160251974Smsmith} 160351974Smsmith 160451974Smsmith/******************************************************************************** 160551974Smsmith * Notify the controller of the mailbox location. 160651974Smsmith */ 160751974Smsmithstatic void 160851974Smsmithamr_std_attach_mailbox(struct amr_softc *sc) 160951974Smsmith{ 161051974Smsmith 161151974Smsmith /* program the mailbox physical address */ 161251974Smsmith AMR_SBYTE_SET(sc, AMR_SMBOX_0, sc->amr_mailboxphys & 0xff); 161351974Smsmith AMR_SBYTE_SET(sc, AMR_SMBOX_1, (sc->amr_mailboxphys >> 8) & 0xff); 161451974Smsmith AMR_SBYTE_SET(sc, AMR_SMBOX_2, (sc->amr_mailboxphys >> 16) & 0xff); 161551974Smsmith AMR_SBYTE_SET(sc, AMR_SMBOX_3, (sc->amr_mailboxphys >> 24) & 0xff); 161651974Smsmith AMR_SBYTE_SET(sc, AMR_SMBOX_ENABLE, AMR_SMBOX_ADDR); 161751974Smsmith 161851974Smsmith /* clear any outstanding interrupt and enable interrupts proper */ 161951974Smsmith AMR_SACK_INTERRUPT(sc); 162051974Smsmith AMR_SENABLE_INTR(sc); 162151974Smsmith} 162251974Smsmith 162365245Smsmith#ifdef AMR_BOARD_INIT 162451974Smsmith/******************************************************************************** 162565245Smsmith * Initialise the controller 162665245Smsmith */ 162765245Smsmithstatic int 162865245Smsmithamr_quartz_init(struct amr_softc *sc) 162965245Smsmith{ 163065245Smsmith int status, ostatus; 163165245Smsmith 163265245Smsmith device_printf(sc->amr_dev, "initial init status %x\n", AMR_QGET_INITSTATUS(sc)); 163365245Smsmith 163465245Smsmith AMR_QRESET(sc); 163565245Smsmith 163665245Smsmith ostatus = 0xff; 163765245Smsmith while ((status = AMR_QGET_INITSTATUS(sc)) != AMR_QINIT_DONE) { 163865245Smsmith if (status != ostatus) { 163965245Smsmith device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_qinit, status)); 164065245Smsmith ostatus = status; 164165245Smsmith } 164265245Smsmith switch (status) { 164365245Smsmith case AMR_QINIT_NOMEM: 164465245Smsmith return(ENOMEM); 164565245Smsmith 164665245Smsmith case AMR_QINIT_SCAN: 164765245Smsmith /* XXX we could print channel/target here */ 164865245Smsmith break; 164965245Smsmith } 165065245Smsmith } 165165245Smsmith return(0); 165265245Smsmith} 165365245Smsmith 165465245Smsmithstatic int 165565245Smsmithamr_std_init(struct amr_softc *sc) 165665245Smsmith{ 165765245Smsmith int status, ostatus; 165865245Smsmith 165965245Smsmith device_printf(sc->amr_dev, "initial init status %x\n", AMR_SGET_INITSTATUS(sc)); 166065245Smsmith 166165245Smsmith AMR_SRESET(sc); 166265245Smsmith 166365245Smsmith ostatus = 0xff; 166465245Smsmith while ((status = AMR_SGET_INITSTATUS(sc)) != AMR_SINIT_DONE) { 166565245Smsmith if (status != ostatus) { 166665245Smsmith device_printf(sc->amr_dev, "(%x) %s\n", status, amr_describe_code(amr_table_sinit, status)); 166765245Smsmith ostatus = status; 166865245Smsmith } 166965245Smsmith switch (status) { 167065245Smsmith case AMR_SINIT_NOMEM: 167165245Smsmith return(ENOMEM); 167265245Smsmith 167365245Smsmith case AMR_SINIT_INPROG: 167465245Smsmith /* XXX we could print channel/target here? */ 167565245Smsmith break; 167665245Smsmith } 167765245Smsmith } 167865245Smsmith return(0); 167965245Smsmith} 168065245Smsmith#endif 168165245Smsmith 168265245Smsmith/******************************************************************************** 168351974Smsmith ******************************************************************************** 168451974Smsmith Debugging 168551974Smsmith ******************************************************************************** 168651974Smsmith ********************************************************************************/ 168751974Smsmith 168851974Smsmith/******************************************************************************** 168965245Smsmith * Identify the controller and print some information about it. 169065245Smsmith */ 169165245Smsmithstatic void 169265245Smsmithamr_describe_controller(struct amr_softc *sc) 169365245Smsmith{ 169465245Smsmith struct amr_prodinfo *ap; 169565245Smsmith struct amr_enquiry *ae; 169665245Smsmith char *prod; 169765245Smsmith 169865245Smsmith /* 169965245Smsmith * Try to get 40LD product info, which tells us what the card is labelled as. 170065245Smsmith */ 170165245Smsmith if ((ap = amr_enquiry(sc, 2048, AMR_CMD_CONFIG, AMR_CONFIG_PRODUCT_INFO, 0)) != NULL) { 1702105419Semoore device_printf(sc->amr_dev, "<LSILogic %.80s> Firmware %.16s, BIOS %.16s, %dMB RAM\n", 170365245Smsmith ap->ap_product, ap->ap_firmware, ap->ap_bios, 170465245Smsmith ap->ap_memsize); 170565245Smsmith 170665245Smsmith free(ap, M_DEVBUF); 170765245Smsmith return; 170865245Smsmith } 170965245Smsmith 171065245Smsmith /* 171165245Smsmith * Try 8LD extended ENQUIRY to get controller signature, and use lookup table. 171265245Smsmith */ 171365245Smsmith if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_EXT_ENQUIRY2, 0, 0)) != NULL) { 171465245Smsmith prod = amr_describe_code(amr_table_adaptertype, ae->ae_signature); 171565245Smsmith 171665245Smsmith } else if ((ae = (struct amr_enquiry *)amr_enquiry(sc, 2048, AMR_CMD_ENQUIRY, 0, 0)) != NULL) { 171765245Smsmith 171865245Smsmith /* 171965245Smsmith * Try to work it out based on the PCI signatures. 172065245Smsmith */ 172165245Smsmith switch (pci_get_device(sc->amr_dev)) { 172265245Smsmith case 0x9010: 172365245Smsmith prod = "Series 428"; 172465245Smsmith break; 172565245Smsmith case 0x9060: 172665245Smsmith prod = "Series 434"; 172765245Smsmith break; 172865245Smsmith default: 172965245Smsmith prod = "unknown controller"; 173065245Smsmith break; 173165245Smsmith } 173265245Smsmith } else { 173365245Smsmith prod = "unsupported controller"; 173465245Smsmith } 173574936Shm 173674936Shm /* 173774936Shm * HP NetRaid controllers have a special encoding of the firmware and 173874936Shm * BIOS versions. The AMI version seems to have it as strings whereas 173974936Shm * the HP version does it with a leading uppercase character and two 174074936Shm * binary numbers. 174174936Shm */ 174274936Shm 174374936Shm if(ae->ae_adapter.aa_firmware[2] >= 'A' && 174474936Shm ae->ae_adapter.aa_firmware[2] <= 'Z' && 174574936Shm ae->ae_adapter.aa_firmware[1] < ' ' && 174674936Shm ae->ae_adapter.aa_firmware[0] < ' ' && 174774936Shm ae->ae_adapter.aa_bios[2] >= 'A' && 174874936Shm ae->ae_adapter.aa_bios[2] <= 'Z' && 174974936Shm ae->ae_adapter.aa_bios[1] < ' ' && 175074936Shm ae->ae_adapter.aa_bios[0] < ' ') { 175174936Shm 175274936Shm /* this looks like we have an HP NetRaid version of the MegaRaid */ 175374936Shm 175474936Shm if(ae->ae_signature == AMR_SIG_438) { 175574936Shm /* the AMI 438 is an NetRaid 3si in HP-land */ 175674936Shm prod = "HP NetRaid 3si"; 175774936Shm } 175874936Shm 175974936Shm device_printf(sc->amr_dev, "<%s> Firmware %c.%02d.%02d, BIOS %c.%02d.%02d, %dMB RAM\n", 176074936Shm prod, ae->ae_adapter.aa_firmware[2], 176174936Shm ae->ae_adapter.aa_firmware[1], 176274936Shm ae->ae_adapter.aa_firmware[0], 176374936Shm ae->ae_adapter.aa_bios[2], 176474936Shm ae->ae_adapter.aa_bios[1], 176574936Shm ae->ae_adapter.aa_bios[0], 176674936Shm ae->ae_adapter.aa_memorysize); 176774936Shm } else { 176874936Shm device_printf(sc->amr_dev, "<%s> Firmware %.4s, BIOS %.4s, %dMB RAM\n", 176974936Shm prod, ae->ae_adapter.aa_firmware, ae->ae_adapter.aa_bios, 177074936Shm ae->ae_adapter.aa_memorysize); 177174936Shm } 177265245Smsmith free(ae, M_DEVBUF); 177365245Smsmith} 177465245Smsmith 177565245Smsmith#ifdef AMR_DEBUG 177665245Smsmith/******************************************************************************** 177751974Smsmith * Print the command (ac) in human-readable format 177851974Smsmith */ 1779107756Semoore#if 0 178051974Smsmithstatic void 178151974Smsmithamr_printcommand(struct amr_command *ac) 178251974Smsmith{ 178351974Smsmith struct amr_softc *sc = ac->ac_sc; 178451974Smsmith struct amr_sgentry *sg; 178551974Smsmith int i; 178651974Smsmith 178751974Smsmith device_printf(sc->amr_dev, "cmd %x ident %d drive %d\n", 178851974Smsmith ac->ac_mailbox.mb_command, ac->ac_mailbox.mb_ident, ac->ac_mailbox.mb_drive); 178951974Smsmith device_printf(sc->amr_dev, "blkcount %d lba %d\n", 179051974Smsmith ac->ac_mailbox.mb_blkcount, ac->ac_mailbox.mb_lba); 179154512Speter device_printf(sc->amr_dev, "virtaddr %p length %lu\n", ac->ac_data, (unsigned long)ac->ac_length); 179258883Smsmith device_printf(sc->amr_dev, "sg physaddr %08x nsg %d\n", 179351974Smsmith ac->ac_mailbox.mb_physaddr, ac->ac_mailbox.mb_nsgelem); 179465245Smsmith device_printf(sc->amr_dev, "ccb %p bio %p\n", ac->ac_ccb_data, ac->ac_bio); 179551974Smsmith 179651974Smsmith /* get base address of s/g table */ 179751974Smsmith sg = sc->amr_sgtable + (ac->ac_slot * AMR_NSEG); 179851974Smsmith for (i = 0; i < ac->ac_mailbox.mb_nsgelem; i++, sg++) 179951974Smsmith device_printf(sc->amr_dev, " %x/%d\n", sg->sg_addr, sg->sg_count); 180051974Smsmith} 180165245Smsmith#endif 1802107756Semoore#endif 1803