/*- * Copyright (c) 2000 Michael Smith * Copyright (c) 2001 Scott Long * Copyright (c) 2000 BSDi * Copyright (c) 2001 Adaptec, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ */ /* * Driver for the Adaptec 'FSA' family of PCI/SCSI RAID adapters. */ #include "opt_aac.h" /* #include */ #include #include #include #include #include #include #include #include #include #if __FreeBSD_version >= 500005 #include #else #include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include static void aac_startup(void *arg); static void aac_add_container(struct aac_softc *sc, struct aac_mntinforesp *mir, int f); static void aac_get_bus_info(struct aac_softc *sc); /* Command Processing */ static void aac_timeout(struct aac_softc *sc); static int aac_start(struct aac_command *cm); static void aac_complete(void *context, int pending); static int aac_bio_command(struct aac_softc *sc, struct aac_command **cmp); static void aac_bio_complete(struct aac_command *cm); static int aac_wait_command(struct aac_command *cm, int timeout); static void aac_command_thread(struct aac_softc *sc); /* Command Buffer Management */ static void aac_map_command_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error); static int aac_alloc_commands(struct aac_softc *sc); static void aac_free_commands(struct aac_softc *sc); static void aac_map_command(struct aac_command *cm); static void aac_unmap_command(struct aac_command *cm); /* Hardware Interface */ static void aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, int error); static int aac_check_firmware(struct aac_softc *sc); static int aac_init(struct aac_softc *sc); static int aac_sync_command(struct aac_softc *sc, u_int32_t command, u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3, u_int32_t *sp); static int aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm); static int aac_dequeue_fib(struct aac_softc *sc, int queue, u_int32_t *fib_size, struct aac_fib **fib_addr); static int aac_enqueue_response(struct aac_softc *sc, int queue, struct aac_fib *fib); /* Falcon/PPC interface */ static int aac_fa_get_fwstatus(struct aac_softc *sc); static void aac_fa_qnotify(struct aac_softc *sc, int qbit); static int aac_fa_get_istatus(struct aac_softc *sc); static void aac_fa_clear_istatus(struct aac_softc *sc, int mask); static void aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3); static int aac_fa_get_mailboxstatus(struct aac_softc *sc); static void aac_fa_set_interrupts(struct aac_softc *sc, int enable); struct aac_interface aac_fa_interface = { aac_fa_get_fwstatus, aac_fa_qnotify, aac_fa_get_istatus, aac_fa_clear_istatus, aac_fa_set_mailbox, aac_fa_get_mailboxstatus, aac_fa_set_interrupts }; /* StrongARM interface */ static int aac_sa_get_fwstatus(struct aac_softc *sc); static void aac_sa_qnotify(struct aac_softc *sc, int qbit); static int aac_sa_get_istatus(struct aac_softc *sc); static void aac_sa_clear_istatus(struct aac_softc *sc, int mask); static void aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3); static int aac_sa_get_mailboxstatus(struct aac_softc *sc); static void aac_sa_set_interrupts(struct aac_softc *sc, int enable); struct aac_interface aac_sa_interface = { aac_sa_get_fwstatus, aac_sa_qnotify, aac_sa_get_istatus, aac_sa_clear_istatus, aac_sa_set_mailbox, aac_sa_get_mailboxstatus, aac_sa_set_interrupts }; /* i960Rx interface */ static int aac_rx_get_fwstatus(struct aac_softc *sc); static void aac_rx_qnotify(struct aac_softc *sc, int qbit); static int aac_rx_get_istatus(struct aac_softc *sc); static void aac_rx_clear_istatus(struct aac_softc *sc, int mask); static void aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3); static int aac_rx_get_mailboxstatus(struct aac_softc *sc); static void aac_rx_set_interrupts(struct aac_softc *sc, int enable); struct aac_interface aac_rx_interface = { aac_rx_get_fwstatus, aac_rx_qnotify, aac_rx_get_istatus, aac_rx_clear_istatus, aac_rx_set_mailbox, aac_rx_get_mailboxstatus, aac_rx_set_interrupts }; /* Debugging and Diagnostics */ static void aac_describe_controller(struct aac_softc *sc); static char *aac_describe_code(struct aac_code_lookup *table, u_int32_t code); /* Management Interface */ static d_open_t aac_open; static d_close_t aac_close; static d_ioctl_t aac_ioctl; static d_poll_t aac_poll; static int aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib); static void aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib); static int aac_rev_check(struct aac_softc *sc, caddr_t udata); static int aac_getnext_aif(struct aac_softc *sc, caddr_t arg); static int aac_return_aif(struct aac_softc *sc, caddr_t uptr); static int aac_query_disk(struct aac_softc *sc, caddr_t uptr); #define AAC_CDEV_MAJOR 150 static struct cdevsw aac_cdevsw = { aac_open, /* open */ aac_close, /* close */ noread, /* read */ nowrite, /* write */ aac_ioctl, /* ioctl */ aac_poll, /* poll */ nommap, /* mmap */ nostrategy, /* strategy */ "aac", /* name */ AAC_CDEV_MAJOR, /* major */ nodump, /* dump */ nopsize, /* psize */ 0, /* flags */ #if __FreeBSD_version < 500005 -1, /* bmaj */ #endif }; MALLOC_DEFINE(M_AACBUF, "aacbuf", "Buffers for the AAC driver"); /* sysctl node */ SYSCTL_NODE(_hw, OID_AUTO, aac, CTLFLAG_RD, 0, "AAC driver parameters"); /* * Device Interface */ /* * Initialise the controller and softc */ int aac_attach(struct aac_softc *sc) { int error, unit; debug_called(1); /* * Initialise per-controller queues. */ aac_initq_free(sc); aac_initq_ready(sc); aac_initq_busy(sc); aac_initq_bio(sc); #if __FreeBSD_version >= 500005 /* * Initialise command-completion task. */ TASK_INIT(&sc->aac_task_complete, 0, aac_complete, sc); #endif /* disable interrupts before we enable anything */ AAC_MASK_INTERRUPTS(sc); /* mark controller as suspended until we get ourselves organised */ sc->aac_state |= AAC_STATE_SUSPEND; /* * Check that the firmware on the card is supported. */ if ((error = aac_check_firmware(sc)) != 0) return(error); /* Init the sync fib lock */ AAC_LOCK_INIT(&sc->aac_sync_lock, "AAC sync FIB lock"); /* * Initialise the adapter. */ if ((error = aac_init(sc)) != 0) return(error); /* * Print a little information about the controller. */ aac_describe_controller(sc); /* * Register to probe our containers later. */ TAILQ_INIT(&sc->aac_container_tqh); AAC_LOCK_INIT(&sc->aac_container_lock, "AAC container lock"); /* * Lock for the AIF queue */ AAC_LOCK_INIT(&sc->aac_aifq_lock, "AAC AIF lock"); sc->aac_ich.ich_func = aac_startup; sc->aac_ich.ich_arg = sc; if (config_intrhook_establish(&sc->aac_ich) != 0) { device_printf(sc->aac_dev, "can't establish configuration hook\n"); return(ENXIO); } /* * Make the control device. */ unit = device_get_unit(sc->aac_dev); sc->aac_dev_t = make_dev(&aac_cdevsw, unit, UID_ROOT, GID_OPERATOR, 0640, "aac%d", unit); #if __FreeBSD_version > 500005 (void)make_dev_alias(sc->aac_dev_t, "afa%d", unit); (void)make_dev_alias(sc->aac_dev_t, "hpn%d", unit); #endif sc->aac_dev_t->si_drv1 = sc; /* Create the AIF thread */ #if __FreeBSD_version > 500005 if (kthread_create((void(*)(void *))aac_command_thread, sc, &sc->aifthread, 0, 0, "aac%daif", unit)) #else if (kthread_create((void(*)(void *))aac_command_thread, sc, &sc->aifthread, "aac%daif", unit)) #endif panic("Could not create AIF thread\n"); /* Register the shutdown method to only be called post-dump */ if ((sc->eh = EVENTHANDLER_REGISTER(shutdown_final, aac_shutdown, sc->aac_dev, SHUTDOWN_PRI_DEFAULT)) == NULL) device_printf(sc->aac_dev, "shutdown event registration failed\n"); /* Register with CAM for the non-DASD devices */ if (!(sc->quirks & AAC_QUIRK_NOCAM)) { TAILQ_INIT(&sc->aac_sim_tqh); aac_get_bus_info(sc); } return(0); } /* * Probe for containers, create disks. */ static void aac_startup(void *arg) { struct aac_softc *sc; struct aac_fib *fib; struct aac_mntinfo *mi; struct aac_mntinforesp *mir = NULL; int i = 0; debug_called(1); sc = (struct aac_softc *)arg; /* disconnect ourselves from the intrhook chain */ config_intrhook_disestablish(&sc->aac_ich); aac_alloc_sync_fib(sc, &fib, 0); mi = (struct aac_mntinfo *)&fib->data[0]; /* loop over possible containers */ do { /* request information on this container */ bzero(mi, sizeof(struct aac_mntinfo)); mi->Command = VM_NameServe; mi->MntType = FT_FILESYS; mi->MntCount = i; if (aac_sync_fib(sc, ContainerCommand, 0, fib, sizeof(struct aac_mntinfo))) { debug(2, "error probing container %d", i); continue; } mir = (struct aac_mntinforesp *)&fib->data[0]; aac_add_container(sc, mir, 0); i++; } while ((i < mir->MntRespCount) && (i < AAC_MAX_CONTAINERS)); aac_release_sync_fib(sc); /* poke the bus to actually attach the child devices */ if (bus_generic_attach(sc->aac_dev)) device_printf(sc->aac_dev, "bus_generic_attach failed\n"); /* mark the controller up */ sc->aac_state &= ~AAC_STATE_SUSPEND; /* enable interrupts now */ AAC_UNMASK_INTERRUPTS(sc); } /* * Create a device to respresent a new container */ static void aac_add_container(struct aac_softc *sc, struct aac_mntinforesp *mir, int f) { struct aac_container *co; device_t child; /* * Check container volume type for validity. Note that many of * the possible types may never show up. */ if ((mir->Status == ST_OK) && (mir->MntTable[0].VolType != CT_NONE)) { co = (struct aac_container *)malloc(sizeof *co, M_AACBUF, M_NOWAIT | M_ZERO); if (co == NULL) panic("Out of memory?!\n"); debug(1, "id %x name '%.16s' size %u type %d", mir->MntTable[0].ObjectId, mir->MntTable[0].FileSystemName, mir->MntTable[0].Capacity, mir->MntTable[0].VolType); if ((child = device_add_child(sc->aac_dev, "aacd", -1)) == NULL) device_printf(sc->aac_dev, "device_add_child failed\n"); else device_set_ivars(child, co); device_set_desc(child, aac_describe_code(aac_container_types, mir->MntTable[0].VolType)); co->co_disk = child; co->co_found = f; bcopy(&mir->MntTable[0], &co->co_mntobj, sizeof(struct aac_mntobj)); AAC_LOCK_ACQUIRE(&sc->aac_container_lock); TAILQ_INSERT_TAIL(&sc->aac_container_tqh, co, co_link); AAC_LOCK_RELEASE(&sc->aac_container_lock); } } /* * Free all of the resources associated with (sc) * * Should not be called if the controller is active. */ void aac_free(struct aac_softc *sc) { debug_called(1); /* remove the control device */ if (sc->aac_dev_t != NULL) destroy_dev(sc->aac_dev_t); /* throw away any FIB buffers, discard the FIB DMA tag */ aac_free_commands(sc); if (sc->aac_fib_dmat) bus_dma_tag_destroy(sc->aac_fib_dmat); free(sc->aac_commands, M_AACBUF); /* destroy the common area */ if (sc->aac_common) { bus_dmamap_unload(sc->aac_common_dmat, sc->aac_common_dmamap); bus_dmamem_free(sc->aac_common_dmat, sc->aac_common, sc->aac_common_dmamap); } if (sc->aac_common_dmat) bus_dma_tag_destroy(sc->aac_common_dmat); /* disconnect the interrupt handler */ if (sc->aac_intr) bus_teardown_intr(sc->aac_dev, sc->aac_irq, sc->aac_intr); if (sc->aac_irq != NULL) bus_release_resource(sc->aac_dev, SYS_RES_IRQ, sc->aac_irq_rid, sc->aac_irq); /* destroy data-transfer DMA tag */ if (sc->aac_buffer_dmat) bus_dma_tag_destroy(sc->aac_buffer_dmat); /* destroy the parent DMA tag */ if (sc->aac_parent_dmat) bus_dma_tag_destroy(sc->aac_parent_dmat); /* release the register window mapping */ if (sc->aac_regs_resource != NULL) bus_release_resource(sc->aac_dev, SYS_RES_MEMORY, sc->aac_regs_rid, sc->aac_regs_resource); } /* * Disconnect from the controller completely, in preparation for unload. */ int aac_detach(device_t dev) { struct aac_softc *sc; struct aac_container *co; struct aac_sim *sim; int error; debug_called(1); sc = device_get_softc(dev); if (sc->aac_state & AAC_STATE_OPEN) return(EBUSY); /* Remove the child containers */ while ((co = TAILQ_FIRST(&sc->aac_container_tqh)) != NULL) { error = device_delete_child(dev, co->co_disk); if (error) return (error); TAILQ_REMOVE(&sc->aac_container_tqh, co, co_link); free(co, M_AACBUF); } /* Remove the CAM SIMs */ while ((sim = TAILQ_FIRST(&sc->aac_sim_tqh)) != NULL) { TAILQ_REMOVE(&sc->aac_sim_tqh, sim, sim_link); error = device_delete_child(dev, sim->sim_dev); if (error) return (error); free(sim, M_AACBUF); } if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { sc->aifflags |= AAC_AIFFLAGS_EXIT; wakeup(sc->aifthread); tsleep(sc->aac_dev, PUSER | PCATCH, "aacdch", 30 * hz); } if (sc->aifflags & AAC_AIFFLAGS_RUNNING) panic("Cannot shutdown AIF thread\n"); if ((error = aac_shutdown(dev))) return(error); EVENTHANDLER_DEREGISTER(shutdown_final, sc->eh); aac_free(sc); return(0); } /* * Bring the controller down to a dormant state and detach all child devices. * * This function is called before detach or system shutdown. * * Note that we can assume that the bioq on the controller is empty, as we won't * allow shutdown if any device is open. */ int aac_shutdown(device_t dev) { struct aac_softc *sc; struct aac_fib *fib; struct aac_close_command *cc; int s; debug_called(1); sc = device_get_softc(dev); s = splbio(); sc->aac_state |= AAC_STATE_SUSPEND; /* * Send a Container shutdown followed by a HostShutdown FIB to the * controller to convince it that we don't want to talk to it anymore. * We've been closed and all I/O completed already */ device_printf(sc->aac_dev, "shutting down controller..."); aac_alloc_sync_fib(sc, &fib, AAC_SYNC_LOCK_FORCE); cc = (struct aac_close_command *)&fib->data[0]; bzero(cc, sizeof(struct aac_close_command)); cc->Command = VM_CloseAll; cc->ContainerId = 0xffffffff; if (aac_sync_fib(sc, ContainerCommand, 0, fib, sizeof(struct aac_close_command))) printf("FAILED.\n"); else printf("done\n"); #if 0 else { fib->data[0] = 0; /* * XXX Issuing this command to the controller makes it shut down * but also keeps it from coming back up without a reset of the * PCI bus. This is not desirable if you are just unloading the * driver module with the intent to reload it later. */ if (aac_sync_fib(sc, FsaHostShutdown, AAC_FIBSTATE_SHUTDOWN, fib, 1)) { printf("FAILED.\n"); } else { printf("done.\n"); } } #endif AAC_MASK_INTERRUPTS(sc); splx(s); return(0); } /* * Bring the controller to a quiescent state, ready for system suspend. */ int aac_suspend(device_t dev) { struct aac_softc *sc; int s; debug_called(1); sc = device_get_softc(dev); s = splbio(); sc->aac_state |= AAC_STATE_SUSPEND; AAC_MASK_INTERRUPTS(sc); splx(s); return(0); } /* * Bring the controller back to a state ready for operation. */ int aac_resume(device_t dev) { struct aac_softc *sc; debug_called(1); sc = device_get_softc(dev); sc->aac_state &= ~AAC_STATE_SUSPEND; AAC_UNMASK_INTERRUPTS(sc); return(0); } /* * Take an interrupt. */ void aac_intr(void *arg) { struct aac_softc *sc; u_int32_t *resp_queue; u_int16_t reason; debug_called(2); sc = (struct aac_softc *)arg; /* * Optimize the common case of adapter response interrupts. * We must read from the card prior to processing the responses * to ensure the clear is flushed prior to accessing the queues. * Reading the queues from local memory might save us a PCI read. */ resp_queue = sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE]; if (resp_queue[AAC_PRODUCER_INDEX] != resp_queue[AAC_CONSUMER_INDEX]) reason = AAC_DB_RESPONSE_READY; else reason = AAC_GET_ISTATUS(sc); AAC_CLEAR_ISTATUS(sc, reason); (void)AAC_GET_ISTATUS(sc); /* It's not ok to return here because of races with the previous step */ if (reason & AAC_DB_RESPONSE_READY) /* handle completion processing */ taskqueue_enqueue(taskqueue_swi_giant, &sc->aac_task_complete); /* controller wants to talk to the log */ if (reason & AAC_DB_PRINTF) { if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { sc->aifflags |= AAC_AIFFLAGS_PRINTF; } else aac_print_printf(sc); } /* controller has a message for us? */ if (reason & AAC_DB_COMMAND_READY) { if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { sc->aifflags |= AAC_AIFFLAGS_AIF; } else { /* * XXX If the kthread is dead and we're at this point, * there are bigger problems than just figuring out * what to do with an AIF. */ } } if ((sc->aifflags & AAC_AIFFLAGS_PENDING) != 0) /* XXX Should this be done with cv_signal? */ wakeup(sc->aifthread); } /* * Command Processing */ /* * Start as much queued I/O as possible on the controller */ void aac_startio(struct aac_softc *sc) { struct aac_command *cm; debug_called(2); for (;;) { /* * Try to get a command that's been put off for lack of * resources */ cm = aac_dequeue_ready(sc); /* * Try to build a command off the bio queue (ignore error * return) */ if (cm == NULL) aac_bio_command(sc, &cm); /* nothing to do? */ if (cm == NULL) break; /* try to give the command to the controller */ if (aac_start(cm) == EBUSY) { /* put it on the ready queue for later */ aac_requeue_ready(cm); break; } } } /* * Deliver a command to the controller; allocate controller resources at the * last moment when possible. */ static int aac_start(struct aac_command *cm) { struct aac_softc *sc; int error; debug_called(2); sc = cm->cm_sc; /* get the command mapped */ aac_map_command(cm); /* fix up the address values in the FIB */ cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib; cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys; /* save a pointer to the command for speedy reverse-lookup */ cm->cm_fib->Header.SenderData = cm->cm_index; /* put the FIB on the outbound queue */ error = aac_enqueue_fib(sc, cm->cm_queue, cm); return(error); } /* * Handle notification of one or more FIBs coming from the controller. */ static void aac_command_thread(struct aac_softc *sc) { struct aac_fib *fib; u_int32_t fib_size; int size; debug_called(2); sc->aifflags |= AAC_AIFFLAGS_RUNNING; while (!(sc->aifflags & AAC_AIFFLAGS_EXIT)) { if ((sc->aifflags & AAC_AIFFLAGS_PENDING) == 0) tsleep(sc->aifthread, PRIBIO, "aifthd", AAC_PERIODIC_INTERVAL * hz); /* While we're here, check to see if any commands are stuck */ if ((sc->aifflags & AAC_AIFFLAGS_PENDING) == 0) aac_timeout(sc); /* Check the hardware printf message buffer */ if ((sc->aifflags & AAC_AIFFLAGS_PRINTF) != 0) { sc->aifflags &= ~AAC_AIFFLAGS_PRINTF; aac_print_printf(sc); } while (sc->aifflags & AAC_AIFFLAGS_AIF) { if (aac_dequeue_fib(sc, AAC_HOST_NORM_CMD_QUEUE, &fib_size, &fib)) { sc->aifflags &= ~AAC_AIFFLAGS_AIF; break; /* nothing to do */ } AAC_PRINT_FIB(sc, fib); switch (fib->Header.Command) { case AifRequest: aac_handle_aif(sc, fib); break; default: device_printf(sc->aac_dev, "unknown command " "from controller\n"); break; } if ((fib->Header.XferState == 0) || (fib->Header.StructType != AAC_FIBTYPE_TFIB)) break; /* Return the AIF to the controller. */ if (fib->Header.XferState & AAC_FIBSTATE_FROMADAP) { fib->Header.XferState |= AAC_FIBSTATE_DONEHOST; *(AAC_FSAStatus*)fib->data = ST_OK; /* XXX Compute the Size field? */ size = fib->Header.Size; if (size > sizeof(struct aac_fib)) { size = sizeof(struct aac_fib); fib->Header.Size = size; } /* * Since we did not generate this command, it * cannot go through the normal * enqueue->startio chain. */ aac_enqueue_response(sc, AAC_ADAP_NORM_RESP_QUEUE, fib); } } } sc->aifflags &= ~AAC_AIFFLAGS_RUNNING; wakeup(sc->aac_dev); #if __FreeBSD_version > 500005 mtx_lock(&Giant); #endif kthread_exit(0); } /* * Process completed commands. */ static void aac_complete(void *context, int pending) { struct aac_softc *sc; struct aac_command *cm; struct aac_fib *fib; u_int32_t fib_size; debug_called(2); sc = (struct aac_softc *)context; /* pull completed commands off the queue */ for (;;) { /* look for completed FIBs on our queue */ if (aac_dequeue_fib(sc, AAC_HOST_NORM_RESP_QUEUE, &fib_size, &fib)) break; /* nothing to do */ /* get the command, unmap and queue for later processing */ cm = sc->aac_commands + fib->Header.SenderData; if (cm == NULL) { AAC_PRINT_FIB(sc, fib); break; } aac_remove_busy(cm); aac_unmap_command(cm); /* XXX defer? */ cm->cm_flags |= AAC_CMD_COMPLETED; /* is there a completion handler? */ if (cm->cm_complete != NULL) { cm->cm_complete(cm); } else { /* assume that someone is sleeping on this command */ wakeup(cm); } } /* see if we can start some more I/O */ aac_startio(sc); } /* * Handle a bio submitted from a disk device. */ void aac_submit_bio(struct bio *bp) { struct aac_disk *ad; struct aac_softc *sc; debug_called(2); ad = (struct aac_disk *)bp->bio_disk->d_drv1; sc = ad->ad_controller; /* queue the BIO and try to get some work done */ aac_enqueue_bio(sc, bp); aac_startio(sc); } /* * Get a bio and build a command to go with it. */ static int aac_bio_command(struct aac_softc *sc, struct aac_command **cmp) { struct aac_command *cm; struct aac_fib *fib; struct aac_blockread *br; struct aac_blockwrite *bw; struct aac_disk *ad; struct bio *bp; debug_called(2); /* get the resources we will need */ cm = NULL; if ((bp = aac_dequeue_bio(sc)) == NULL) goto fail; if (aac_alloc_command(sc, &cm)) /* get a command */ goto fail; /* fill out the command */ cm->cm_data = (void *)bp->bio_data; cm->cm_datalen = bp->bio_bcount; cm->cm_complete = aac_bio_complete; cm->cm_private = bp; cm->cm_timestamp = time_second; cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; /* build the FIB */ fib = cm->cm_fib; fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED | AAC_FIBSTATE_INITIALISED | AAC_FIBSTATE_EMPTY | AAC_FIBSTATE_FROMHOST | AAC_FIBSTATE_REXPECTED | AAC_FIBSTATE_NORM | AAC_FIBSTATE_ASYNC | AAC_FIBSTATE_FAST_RESPONSE; fib->Header.Command = ContainerCommand; fib->Header.Size = sizeof(struct aac_fib_header); /* build the read/write request */ ad = (struct aac_disk *)bp->bio_disk->d_drv1; if (BIO_IS_READ(bp)) { br = (struct aac_blockread *)&fib->data[0]; br->Command = VM_CtBlockRead; br->ContainerId = ad->ad_container->co_mntobj.ObjectId; br->BlockNumber = bp->bio_pblkno; br->ByteCount = bp->bio_bcount; fib->Header.Size += sizeof(struct aac_blockread); cm->cm_sgtable = &br->SgMap; cm->cm_flags |= AAC_CMD_DATAIN; } else { bw = (struct aac_blockwrite *)&fib->data[0]; bw->Command = VM_CtBlockWrite; bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; bw->BlockNumber = bp->bio_pblkno; bw->ByteCount = bp->bio_bcount; bw->Stable = CUNSTABLE; /* XXX what's appropriate here? */ fib->Header.Size += sizeof(struct aac_blockwrite); cm->cm_flags |= AAC_CMD_DATAOUT; cm->cm_sgtable = &bw->SgMap; } *cmp = cm; return(0); fail: if (bp != NULL) aac_enqueue_bio(sc, bp); if (cm != NULL) aac_release_command(cm); return(ENOMEM); } /* * Handle a bio-instigated command that has been completed. */ static void aac_bio_complete(struct aac_command *cm) { struct aac_blockread_response *brr; struct aac_blockwrite_response *bwr; struct bio *bp; AAC_FSAStatus status; /* fetch relevant status and then release the command */ bp = (struct bio *)cm->cm_private; if (BIO_IS_READ(bp)) { brr = (struct aac_blockread_response *)&cm->cm_fib->data[0]; status = brr->Status; } else { bwr = (struct aac_blockwrite_response *)&cm->cm_fib->data[0]; status = bwr->Status; } aac_release_command(cm); /* fix up the bio based on status */ if (status == ST_OK) { bp->bio_resid = 0; } else { bp->bio_error = EIO; bp->bio_flags |= BIO_ERROR; /* pass an error string out to the disk layer */ bp->bio_driver1 = aac_describe_code(aac_command_status_table, status); } aac_biodone(bp); } /* * Submit a command to the controller, return when it completes. * XXX This is very dangerous! If the card has gone out to lunch, we could * be stuck here forever. At the same time, signals are not caught * because there is a risk that a signal could wakeup the tsleep before * the card has a chance to complete the command. The passed in timeout * is ignored for the same reason. Since there is no way to cancel a * command in progress, we should probably create a 'dead' queue where * commands go that have been interrupted/timed-out/etc, that keeps them * out of the free pool. That way, if the card is just slow, it won't * spam the memory of a command that has been recycled. */ static int aac_wait_command(struct aac_command *cm, int timeout) { int s, error = 0; debug_called(2); /* Put the command on the ready queue and get things going */ cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; aac_enqueue_ready(cm); aac_startio(cm->cm_sc); s = splbio(); while (!(cm->cm_flags & AAC_CMD_COMPLETED) && (error != EWOULDBLOCK)) { error = tsleep(cm, PRIBIO, "aacwait", 0); } splx(s); return(error); } /* *Command Buffer Management */ /* * Allocate a command. */ int aac_alloc_command(struct aac_softc *sc, struct aac_command **cmp) { struct aac_command *cm; debug_called(3); if ((cm = aac_dequeue_free(sc)) == NULL) { if ((aac_alloc_commands(sc) != 0) || (cm = aac_dequeue_free(sc)) == NULL) return (ENOMEM); } *cmp = cm; return(0); } /* * Release a command back to the freelist. */ void aac_release_command(struct aac_command *cm) { debug_called(3); /* (re)initialise the command/FIB */ cm->cm_sgtable = NULL; cm->cm_flags = 0; cm->cm_complete = NULL; cm->cm_private = NULL; cm->cm_fib->Header.XferState = AAC_FIBSTATE_EMPTY; cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB; cm->cm_fib->Header.Flags = 0; cm->cm_fib->Header.SenderSize = sizeof(struct aac_fib); /* * These are duplicated in aac_start to cover the case where an * intermediate stage may have destroyed them. They're left * initialised here for debugging purposes only. */ cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib; cm->cm_fib->Header.ReceiverFibAddress = (u_int32_t)cm->cm_fibphys; cm->cm_fib->Header.SenderData = 0; aac_enqueue_free(cm); } /* * Map helper for command/FIB allocation. */ static void aac_map_command_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) { uint32_t *fibphys; fibphys = (uint32_t *)arg; debug_called(3); *fibphys = segs[0].ds_addr; } /* * Allocate and initialise commands/FIBs for this adapter. */ static int aac_alloc_commands(struct aac_softc *sc) { struct aac_command *cm; struct aac_fibmap *fm; uint32_t fibphys; int i, error; debug_called(1); if (sc->total_fibs + AAC_FIB_COUNT > AAC_MAX_FIBS) return (ENOMEM); fm = malloc(sizeof(struct aac_fibmap), M_AACBUF, M_NOWAIT|M_ZERO); /* allocate the FIBs in DMAable memory and load them */ if (bus_dmamem_alloc(sc->aac_fib_dmat, (void **)&fm->aac_fibs, BUS_DMA_NOWAIT, &fm->aac_fibmap)) { device_printf(sc->aac_dev, "Not enough contiguous memory available.\n"); free(fm, M_AACBUF); return (ENOMEM); } bus_dmamap_load(sc->aac_fib_dmat, fm->aac_fibmap, fm->aac_fibs, AAC_FIB_COUNT * sizeof(struct aac_fib), aac_map_command_helper, &fibphys, 0); /* initialise constant fields in the command structure */ bzero(fm->aac_fibs, AAC_FIB_COUNT * sizeof(struct aac_fib)); for (i = 0; i < AAC_FIB_COUNT; i++) { cm = sc->aac_commands + sc->total_fibs; fm->aac_commands = cm; cm->cm_sc = sc; cm->cm_fib = fm->aac_fibs + i; cm->cm_fibphys = fibphys + (i * sizeof(struct aac_fib)); cm->cm_index = sc->total_fibs; if ((error = bus_dmamap_create(sc->aac_buffer_dmat, 0, &cm->cm_datamap)) == 0) aac_release_command(cm); else break; sc->total_fibs++; } if (i > 0) { TAILQ_INSERT_TAIL(&sc->aac_fibmap_tqh, fm, fm_link); return (0); } bus_dmamap_unload(sc->aac_fib_dmat, fm->aac_fibmap); bus_dmamem_free(sc->aac_fib_dmat, fm->aac_fibs, fm->aac_fibmap); free(fm, M_AACBUF); return (ENOMEM); } /* * Free FIBs owned by this adapter. */ static void aac_free_commands(struct aac_softc *sc) { struct aac_fibmap *fm; struct aac_command *cm; int i; debug_called(1); while ((fm = TAILQ_FIRST(&sc->aac_fibmap_tqh)) != NULL) { TAILQ_REMOVE(&sc->aac_fibmap_tqh, fm, fm_link); /* * We check against total_fibs to handle partially * allocated blocks. */ for (i = 0; i < AAC_FIB_COUNT && sc->total_fibs--; i++) { cm = fm->aac_commands + i; bus_dmamap_destroy(sc->aac_buffer_dmat, cm->cm_datamap); } bus_dmamap_unload(sc->aac_fib_dmat, fm->aac_fibmap); bus_dmamem_free(sc->aac_fib_dmat, fm->aac_fibs, fm->aac_fibmap); free(fm, M_AACBUF); } } /* * Command-mapping helper function - populate this command's s/g table. */ static void aac_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error) { struct aac_command *cm; struct aac_fib *fib; struct aac_sg_table *sg; int i; debug_called(3); cm = (struct aac_command *)arg; fib = cm->cm_fib; /* find the s/g table */ sg = cm->cm_sgtable; /* copy into the FIB */ if (sg != NULL) { sg->SgCount = nseg; for (i = 0; i < nseg; i++) { sg->SgEntry[i].SgAddress = segs[i].ds_addr; sg->SgEntry[i].SgByteCount = segs[i].ds_len; } /* update the FIB size for the s/g count */ fib->Header.Size += nseg * sizeof(struct aac_sg_entry); } } /* * Map a command into controller-visible space. */ static void aac_map_command(struct aac_command *cm) { struct aac_softc *sc; debug_called(2); sc = cm->cm_sc; /* don't map more than once */ if (cm->cm_flags & AAC_CMD_MAPPED) return; if (cm->cm_datalen != 0) { bus_dmamap_load(sc->aac_buffer_dmat, cm->cm_datamap, cm->cm_data, cm->cm_datalen, aac_map_command_sg, cm, 0); if (cm->cm_flags & AAC_CMD_DATAIN) bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, BUS_DMASYNC_PREREAD); if (cm->cm_flags & AAC_CMD_DATAOUT) bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, BUS_DMASYNC_PREWRITE); } cm->cm_flags |= AAC_CMD_MAPPED; } /* * Unmap a command from controller-visible space. */ static void aac_unmap_command(struct aac_command *cm) { struct aac_softc *sc; debug_called(2); sc = cm->cm_sc; if (!(cm->cm_flags & AAC_CMD_MAPPED)) return; if (cm->cm_datalen != 0) { if (cm->cm_flags & AAC_CMD_DATAIN) bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, BUS_DMASYNC_POSTREAD); if (cm->cm_flags & AAC_CMD_DATAOUT) bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, BUS_DMASYNC_POSTWRITE); bus_dmamap_unload(sc->aac_buffer_dmat, cm->cm_datamap); } cm->cm_flags &= ~AAC_CMD_MAPPED; } /* * Hardware Interface */ /* * Initialise the adapter. */ static void aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, int error) { struct aac_softc *sc; debug_called(1); sc = (struct aac_softc *)arg; sc->aac_common_busaddr = segs[0].ds_addr; } /* * Retrieve the firmware version numbers. Dell PERC2/QC cards with * firmware version 1.x are not compatible with this driver. */ static int aac_check_firmware(struct aac_softc *sc) { u_int32_t major, minor; debug_called(1); if (sc->quirks & AAC_QUIRK_PERC2QC) { if (aac_sync_command(sc, AAC_MONKER_GETKERNVER, 0, 0, 0, 0, NULL)) { device_printf(sc->aac_dev, "Error reading firmware version\n"); return (EIO); } /* These numbers are stored as ASCII! */ major = (AAC_GETREG4(sc, AAC_SA_MAILBOX + 4) & 0xff) - 0x30; minor = (AAC_GETREG4(sc, AAC_SA_MAILBOX + 8) & 0xff) - 0x30; if (major == 1) { device_printf(sc->aac_dev, "Firmware version %d.%d is not supported.\n", major, minor); return (EINVAL); } } return (0); } static int aac_init(struct aac_softc *sc) { struct aac_adapter_init *ip; time_t then; u_int32_t code; u_int8_t *qaddr; debug_called(1); /* * First wait for the adapter to come ready. */ then = time_second; do { code = AAC_GET_FWSTATUS(sc); if (code & AAC_SELF_TEST_FAILED) { device_printf(sc->aac_dev, "FATAL: selftest failed\n"); return(ENXIO); } if (code & AAC_KERNEL_PANIC) { device_printf(sc->aac_dev, "FATAL: controller kernel panic\n"); return(ENXIO); } if (time_second > (then + AAC_BOOT_TIMEOUT)) { device_printf(sc->aac_dev, "FATAL: controller not coming ready, " "status %x\n", code); return(ENXIO); } } while (!(code & AAC_UP_AND_RUNNING)); /* * Create DMA tag for the common structure and allocate it. */ if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 1, 0, /* algnmnt, boundary */ BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ BUS_SPACE_MAXADDR, /* highaddr */ NULL, NULL, /* filter, filterarg */ 8192 + sizeof(struct aac_common), /* maxsize */ 1, /* nsegments */ BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 0, /* flags */ &sc->aac_common_dmat)) { device_printf(sc->aac_dev, "can't allocate common structure DMA tag\n"); return(ENOMEM); } if (bus_dmamem_alloc(sc->aac_common_dmat, (void **)&sc->aac_common, BUS_DMA_NOWAIT, &sc->aac_common_dmamap)) { device_printf(sc->aac_dev, "can't allocate common structure\n"); return(ENOMEM); } /* * Work around a bug in the 2120 and 2200 that cannot DMA commands * below address 8192 in physical memory. * XXX If the padding is not needed, can it be put to use instead * of ignored? */ bus_dmamap_load(sc->aac_common_dmat, sc->aac_common_dmamap, sc->aac_common, 8192 + sizeof(*sc->aac_common), aac_common_map, sc, 0); if (sc->aac_common_busaddr < 8192) { (uint8_t *)sc->aac_common += 8192; sc->aac_common_busaddr += 8192; } bzero(sc->aac_common, sizeof(*sc->aac_common)); /* Allocate some FIBs and associated command structs */ TAILQ_INIT(&sc->aac_fibmap_tqh); sc->aac_commands = malloc(AAC_MAX_FIBS * sizeof(struct aac_command), M_AACBUF, M_WAITOK|M_ZERO); while (sc->total_fibs < AAC_PREALLOCATE_FIBS) { if (aac_alloc_commands(sc) != 0) break; } if (sc->total_fibs == 0) return (ENOMEM); /* * Fill in the init structure. This tells the adapter about the * physical location of various important shared data structures. */ ip = &sc->aac_common->ac_init; ip->InitStructRevision = AAC_INIT_STRUCT_REVISION; ip->MiniPortRevision = AAC_INIT_STRUCT_MINIPORT_REVISION; ip->AdapterFibsPhysicalAddress = sc->aac_common_busaddr + offsetof(struct aac_common, ac_fibs); ip->AdapterFibsVirtualAddress = (u_int32_t)&sc->aac_common->ac_fibs[0]; ip->AdapterFibsSize = AAC_ADAPTER_FIBS * sizeof(struct aac_fib); ip->AdapterFibAlign = sizeof(struct aac_fib); ip->PrintfBufferAddress = sc->aac_common_busaddr + offsetof(struct aac_common, ac_printf); ip->PrintfBufferSize = AAC_PRINTF_BUFSIZE; /* The adapter assumes that pages are 4K in size */ ip->HostPhysMemPages = ctob(physmem) / AAC_PAGE_SIZE; ip->HostElapsedSeconds = time_second; /* reset later if invalid */ /* * Initialise FIB queues. Note that it appears that the layout of the * indexes and the segmentation of the entries may be mandated by the * adapter, which is only told about the base of the queue index fields. * * The initial values of the indices are assumed to inform the adapter * of the sizes of the respective queues, and theoretically it could * work out the entire layout of the queue structures from this. We * take the easy route and just lay this area out like everyone else * does. * * The Linux driver uses a much more complex scheme whereby several * header records are kept for each queue. We use a couple of generic * list manipulation functions which 'know' the size of each list by * virtue of a table. */ qaddr = &sc->aac_common->ac_qbuf[0] + AAC_QUEUE_ALIGN; qaddr -= (u_int32_t)qaddr % AAC_QUEUE_ALIGN; sc->aac_queues = (struct aac_queue_table *)qaddr; ip->CommHeaderAddress = sc->aac_common_busaddr + ((u_int32_t)sc->aac_queues - (u_int32_t)sc->aac_common); sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = AAC_HOST_NORM_CMD_ENTRIES; sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = AAC_HOST_NORM_CMD_ENTRIES; sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = AAC_HOST_HIGH_CMD_ENTRIES; sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = AAC_HOST_HIGH_CMD_ENTRIES; sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = AAC_ADAP_NORM_CMD_ENTRIES; sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = AAC_ADAP_NORM_CMD_ENTRIES; sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = AAC_ADAP_HIGH_CMD_ENTRIES; sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = AAC_ADAP_HIGH_CMD_ENTRIES; sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= AAC_HOST_NORM_RESP_ENTRIES; sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= AAC_HOST_NORM_RESP_ENTRIES; sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= AAC_HOST_HIGH_RESP_ENTRIES; sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= AAC_HOST_HIGH_RESP_ENTRIES; sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= AAC_ADAP_NORM_RESP_ENTRIES; sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= AAC_ADAP_NORM_RESP_ENTRIES; sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= AAC_ADAP_HIGH_RESP_ENTRIES; sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= AAC_ADAP_HIGH_RESP_ENTRIES; sc->aac_qentries[AAC_HOST_NORM_CMD_QUEUE] = &sc->aac_queues->qt_HostNormCmdQueue[0]; sc->aac_qentries[AAC_HOST_HIGH_CMD_QUEUE] = &sc->aac_queues->qt_HostHighCmdQueue[0]; sc->aac_qentries[AAC_ADAP_NORM_CMD_QUEUE] = &sc->aac_queues->qt_AdapNormCmdQueue[0]; sc->aac_qentries[AAC_ADAP_HIGH_CMD_QUEUE] = &sc->aac_queues->qt_AdapHighCmdQueue[0]; sc->aac_qentries[AAC_HOST_NORM_RESP_QUEUE] = &sc->aac_queues->qt_HostNormRespQueue[0]; sc->aac_qentries[AAC_HOST_HIGH_RESP_QUEUE] = &sc->aac_queues->qt_HostHighRespQueue[0]; sc->aac_qentries[AAC_ADAP_NORM_RESP_QUEUE] = &sc->aac_queues->qt_AdapNormRespQueue[0]; sc->aac_qentries[AAC_ADAP_HIGH_RESP_QUEUE] = &sc->aac_queues->qt_AdapHighRespQueue[0]; /* * Do controller-type-specific initialisation */ switch (sc->aac_hwif) { case AAC_HWIF_I960RX: AAC_SETREG4(sc, AAC_RX_ODBR, ~0); break; } /* * Give the init structure to the controller. */ if (aac_sync_command(sc, AAC_MONKER_INITSTRUCT, sc->aac_common_busaddr + offsetof(struct aac_common, ac_init), 0, 0, 0, NULL)) { device_printf(sc->aac_dev, "error establishing init structure\n"); return(EIO); } return(0); } /* * Send a synchronous command to the controller and wait for a result. */ static int aac_sync_command(struct aac_softc *sc, u_int32_t command, u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3, u_int32_t *sp) { time_t then; u_int32_t status; debug_called(3); /* populate the mailbox */ AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3); /* ensure the sync command doorbell flag is cleared */ AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); /* then set it to signal the adapter */ AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND); /* spin waiting for the command to complete */ then = time_second; do { if (time_second > (then + AAC_IMMEDIATE_TIMEOUT)) { debug(2, "timed out"); return(EIO); } } while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND)); /* clear the completion flag */ AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); /* get the command status */ status = AAC_GET_MAILBOXSTATUS(sc); if (sp != NULL) *sp = status; return(0); } /* * Grab the sync fib area. */ int aac_alloc_sync_fib(struct aac_softc *sc, struct aac_fib **fib, int flags) { /* * If the force flag is set, the system is shutting down, or in * trouble. Ignore the mutex. */ if (!(flags & AAC_SYNC_LOCK_FORCE)) AAC_LOCK_ACQUIRE(&sc->aac_sync_lock); *fib = &sc->aac_common->ac_sync_fib; return (1); } /* * Release the sync fib area. */ void aac_release_sync_fib(struct aac_softc *sc) { AAC_LOCK_RELEASE(&sc->aac_sync_lock); } /* * Send a synchronous FIB to the controller and wait for a result. */ int aac_sync_fib(struct aac_softc *sc, u_int32_t command, u_int32_t xferstate, struct aac_fib *fib, u_int16_t datasize) { debug_called(3); if (datasize > AAC_FIB_DATASIZE) return(EINVAL); /* * Set up the sync FIB */ fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED | AAC_FIBSTATE_INITIALISED | AAC_FIBSTATE_EMPTY; fib->Header.XferState |= xferstate; fib->Header.Command = command; fib->Header.StructType = AAC_FIBTYPE_TFIB; fib->Header.Size = sizeof(struct aac_fib) + datasize; fib->Header.SenderSize = sizeof(struct aac_fib); fib->Header.SenderFibAddress = (u_int32_t)fib; fib->Header.ReceiverFibAddress = sc->aac_common_busaddr + offsetof(struct aac_common, ac_sync_fib); /* * Give the FIB to the controller, wait for a response. */ if (aac_sync_command(sc, AAC_MONKER_SYNCFIB, fib->Header.ReceiverFibAddress, 0, 0, 0, NULL)) { debug(2, "IO error"); return(EIO); } return (0); } /* * Adapter-space FIB queue manipulation * * Note that the queue implementation here is a little funky; neither the PI or * CI will ever be zero. This behaviour is a controller feature. */ static struct { int size; int notify; } aac_qinfo[] = { {AAC_HOST_NORM_CMD_ENTRIES, AAC_DB_COMMAND_NOT_FULL}, {AAC_HOST_HIGH_CMD_ENTRIES, 0}, {AAC_ADAP_NORM_CMD_ENTRIES, AAC_DB_COMMAND_READY}, {AAC_ADAP_HIGH_CMD_ENTRIES, 0}, {AAC_HOST_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_NOT_FULL}, {AAC_HOST_HIGH_RESP_ENTRIES, 0}, {AAC_ADAP_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_READY}, {AAC_ADAP_HIGH_RESP_ENTRIES, 0} }; /* * Atomically insert an entry into the nominated queue, returns 0 on success or * EBUSY if the queue is full. * * Note: it would be more efficient to defer notifying the controller in * the case where we may be inserting several entries in rapid succession, * but implementing this usefully may be difficult (it would involve a * separate queue/notify interface). */ static int aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm) { u_int32_t pi, ci; int s, error; u_int32_t fib_size; u_int32_t fib_addr; debug_called(3); fib_size = cm->cm_fib->Header.Size; fib_addr = cm->cm_fib->Header.ReceiverFibAddress; s = splbio(); /* get the producer/consumer indices */ pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; /* wrap the queue? */ if (pi >= aac_qinfo[queue].size) pi = 0; /* check for queue full */ if ((pi + 1) == ci) { error = EBUSY; goto out; } /* populate queue entry */ (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; /* update producer index */ sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; /* * To avoid a race with its completion interrupt, place this command on * the busy queue prior to advertising it to the controller. */ aac_enqueue_busy(cm); /* notify the adapter if we know how */ if (aac_qinfo[queue].notify != 0) AAC_QNOTIFY(sc, aac_qinfo[queue].notify); error = 0; out: splx(s); return(error); } /* * Atomically remove one entry from the nominated queue, returns 0 on * success or ENOENT if the queue is empty. */ static int aac_dequeue_fib(struct aac_softc *sc, int queue, u_int32_t *fib_size, struct aac_fib **fib_addr) { u_int32_t pi, ci; int s, error; int notify; debug_called(3); s = splbio(); /* get the producer/consumer indices */ pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; /* check for queue empty */ if (ci == pi) { error = ENOENT; goto out; } notify = 0; if (ci == pi + 1) notify++; /* wrap the queue? */ if (ci >= aac_qinfo[queue].size) ci = 0; /* fetch the entry */ *fib_size = (sc->aac_qentries[queue] + ci)->aq_fib_size; *fib_addr = (struct aac_fib *)(sc->aac_qentries[queue] + ci)->aq_fib_addr; /* * Is this a fast response? If it is, update the fib fields in * local memory so the whole fib doesn't have to be DMA'd back up. */ if (*(uintptr_t *)fib_addr & 0x01) { *(uintptr_t *)fib_addr &= ~0x01; (*fib_addr)->Header.XferState |= AAC_FIBSTATE_DONEADAP; *((u_int32_t*)((*fib_addr)->data)) = AAC_ERROR_NORMAL; } /* update consumer index */ sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX] = ci + 1; /* if we have made the queue un-full, notify the adapter */ if (notify && (aac_qinfo[queue].notify != 0)) AAC_QNOTIFY(sc, aac_qinfo[queue].notify); error = 0; out: splx(s); return(error); } /* * Put our response to an Adapter Initialed Fib on the response queue */ static int aac_enqueue_response(struct aac_softc *sc, int queue, struct aac_fib *fib) { u_int32_t pi, ci; int s, error; u_int32_t fib_size; u_int32_t fib_addr; debug_called(1); /* Tell the adapter where the FIB is */ fib_size = fib->Header.Size; fib_addr = fib->Header.SenderFibAddress; fib->Header.ReceiverFibAddress = fib_addr; s = splbio(); /* get the producer/consumer indices */ pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; /* wrap the queue? */ if (pi >= aac_qinfo[queue].size) pi = 0; /* check for queue full */ if ((pi + 1) == ci) { error = EBUSY; goto out; } /* populate queue entry */ (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; /* update producer index */ sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; /* notify the adapter if we know how */ if (aac_qinfo[queue].notify != 0) AAC_QNOTIFY(sc, aac_qinfo[queue].notify); error = 0; out: splx(s); return(error); } /* * Check for commands that have been outstanding for a suspiciously long time, * and complain about them. */ static void aac_timeout(struct aac_softc *sc) { int s; struct aac_command *cm; time_t deadline; /* * Traverse the busy command list, bitch about late commands once * only. */ deadline = time_second - AAC_CMD_TIMEOUT; s = splbio(); TAILQ_FOREACH(cm, &sc->aac_busy, cm_link) { if ((cm->cm_timestamp < deadline) /* && !(cm->cm_flags & AAC_CMD_TIMEDOUT) */) { cm->cm_flags |= AAC_CMD_TIMEDOUT; device_printf(sc->aac_dev, "COMMAND %p TIMEOUT AFTER %d SECONDS\n", cm, (int)(time_second-cm->cm_timestamp)); AAC_PRINT_FIB(sc, cm->cm_fib); } } splx(s); return; } /* * Interface Function Vectors */ /* * Read the current firmware status word. */ static int aac_sa_get_fwstatus(struct aac_softc *sc) { debug_called(3); return(AAC_GETREG4(sc, AAC_SA_FWSTATUS)); } static int aac_rx_get_fwstatus(struct aac_softc *sc) { debug_called(3); return(AAC_GETREG4(sc, AAC_RX_FWSTATUS)); } static int aac_fa_get_fwstatus(struct aac_softc *sc) { int val; debug_called(3); val = AAC_GETREG4(sc, AAC_FA_FWSTATUS); return (val); } /* * Notify the controller of a change in a given queue */ static void aac_sa_qnotify(struct aac_softc *sc, int qbit) { debug_called(3); AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit); } static void aac_rx_qnotify(struct aac_softc *sc, int qbit) { debug_called(3); AAC_SETREG4(sc, AAC_RX_IDBR, qbit); } static void aac_fa_qnotify(struct aac_softc *sc, int qbit) { debug_called(3); AAC_SETREG2(sc, AAC_FA_DOORBELL1, qbit); AAC_FA_HACK(sc); } /* * Get the interrupt reason bits */ static int aac_sa_get_istatus(struct aac_softc *sc) { debug_called(3); return(AAC_GETREG2(sc, AAC_SA_DOORBELL0)); } static int aac_rx_get_istatus(struct aac_softc *sc) { debug_called(3); return(AAC_GETREG4(sc, AAC_RX_ODBR)); } static int aac_fa_get_istatus(struct aac_softc *sc) { int val; debug_called(3); val = AAC_GETREG2(sc, AAC_FA_DOORBELL0); return (val); } /* * Clear some interrupt reason bits */ static void aac_sa_clear_istatus(struct aac_softc *sc, int mask) { debug_called(3); AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask); } static void aac_rx_clear_istatus(struct aac_softc *sc, int mask) { debug_called(3); AAC_SETREG4(sc, AAC_RX_ODBR, mask); } static void aac_fa_clear_istatus(struct aac_softc *sc, int mask) { debug_called(3); AAC_SETREG2(sc, AAC_FA_DOORBELL0_CLEAR, mask); AAC_FA_HACK(sc); } /* * Populate the mailbox and set the command word */ static void aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) { debug_called(4); AAC_SETREG4(sc, AAC_SA_MAILBOX, command); AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0); AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1); AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2); AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3); } static void aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) { debug_called(4); AAC_SETREG4(sc, AAC_RX_MAILBOX, command); AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0); AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1); AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2); AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3); } static void aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) { debug_called(4); AAC_SETREG4(sc, AAC_FA_MAILBOX, command); AAC_FA_HACK(sc); AAC_SETREG4(sc, AAC_FA_MAILBOX + 4, arg0); AAC_FA_HACK(sc); AAC_SETREG4(sc, AAC_FA_MAILBOX + 8, arg1); AAC_FA_HACK(sc); AAC_SETREG4(sc, AAC_FA_MAILBOX + 12, arg2); AAC_FA_HACK(sc); AAC_SETREG4(sc, AAC_FA_MAILBOX + 16, arg3); AAC_FA_HACK(sc); } /* * Fetch the immediate command status word */ static int aac_sa_get_mailboxstatus(struct aac_softc *sc) { debug_called(4); return(AAC_GETREG4(sc, AAC_SA_MAILBOX)); } static int aac_rx_get_mailboxstatus(struct aac_softc *sc) { debug_called(4); return(AAC_GETREG4(sc, AAC_RX_MAILBOX)); } static int aac_fa_get_mailboxstatus(struct aac_softc *sc) { int val; debug_called(4); val = AAC_GETREG4(sc, AAC_FA_MAILBOX); return (val); } /* * Set/clear interrupt masks */ static void aac_sa_set_interrupts(struct aac_softc *sc, int enable) { debug(2, "%sable interrupts", enable ? "en" : "dis"); if (enable) { AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS); } else { AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0); } } static void aac_rx_set_interrupts(struct aac_softc *sc, int enable) { debug(2, "%sable interrupts", enable ? "en" : "dis"); if (enable) { AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS); } else { AAC_SETREG4(sc, AAC_RX_OIMR, ~0); } } static void aac_fa_set_interrupts(struct aac_softc *sc, int enable) { debug(2, "%sable interrupts", enable ? "en" : "dis"); if (enable) { AAC_SETREG2((sc), AAC_FA_MASK0_CLEAR, AAC_DB_INTERRUPTS); AAC_FA_HACK(sc); } else { AAC_SETREG2((sc), AAC_FA_MASK0, ~0); AAC_FA_HACK(sc); } } /* * Debugging and Diagnostics */ /* * Print some information about the controller. */ static void aac_describe_controller(struct aac_softc *sc) { struct aac_fib *fib; struct aac_adapter_info *info; debug_called(2); aac_alloc_sync_fib(sc, &fib, 0); fib->data[0] = 0; if (aac_sync_fib(sc, RequestAdapterInfo, 0, fib, 1)) { device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); aac_release_sync_fib(sc); return; } info = (struct aac_adapter_info *)&fib->data[0]; device_printf(sc->aac_dev, "%s %dMHz, %dMB cache memory, %s\n", aac_describe_code(aac_cpu_variant, info->CpuVariant), info->ClockSpeed, info->BufferMem / (1024 * 1024), aac_describe_code(aac_battery_platform, info->batteryPlatform)); /* save the kernel revision structure for later use */ sc->aac_revision = info->KernelRevision; device_printf(sc->aac_dev, "Kernel %d.%d-%d, Build %d, S/N %6X\n", info->KernelRevision.external.comp.major, info->KernelRevision.external.comp.minor, info->KernelRevision.external.comp.dash, info->KernelRevision.buildNumber, (u_int32_t)(info->SerialNumber & 0xffffff)); aac_release_sync_fib(sc); } /* * Look up a text description of a numeric error code and return a pointer to * same. */ static char * aac_describe_code(struct aac_code_lookup *table, u_int32_t code) { int i; for (i = 0; table[i].string != NULL; i++) if (table[i].code == code) return(table[i].string); return(table[i + 1].string); } /* * Management Interface */ static int aac_open(dev_t dev, int flags, int fmt, d_thread_t *td) { struct aac_softc *sc; debug_called(2); sc = dev->si_drv1; /* Check to make sure the device isn't already open */ if (sc->aac_state & AAC_STATE_OPEN) { return EBUSY; } sc->aac_state |= AAC_STATE_OPEN; return 0; } static int aac_close(dev_t dev, int flags, int fmt, d_thread_t *td) { struct aac_softc *sc; debug_called(2); sc = dev->si_drv1; /* Mark this unit as no longer open */ sc->aac_state &= ~AAC_STATE_OPEN; return 0; } static int aac_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td) { union aac_statrequest *as; struct aac_softc *sc; int error = 0; int i; debug_called(2); as = (union aac_statrequest *)arg; sc = dev->si_drv1; switch (cmd) { case AACIO_STATS: switch (as->as_item) { case AACQ_FREE: case AACQ_BIO: case AACQ_READY: case AACQ_BUSY: case AACQ_COMPLETE: bcopy(&sc->aac_qstat[as->as_item], &as->as_qstat, sizeof(struct aac_qstat)); break; default: error = ENOENT; break; } break; case FSACTL_SENDFIB: arg = *(caddr_t*)arg; case FSACTL_LNX_SENDFIB: debug(1, "FSACTL_SENDFIB"); error = aac_ioctl_sendfib(sc, arg); break; case FSACTL_AIF_THREAD: case FSACTL_LNX_AIF_THREAD: debug(1, "FSACTL_AIF_THREAD"); error = EINVAL; break; case FSACTL_OPEN_GET_ADAPTER_FIB: arg = *(caddr_t*)arg; case FSACTL_LNX_OPEN_GET_ADAPTER_FIB: debug(1, "FSACTL_OPEN_GET_ADAPTER_FIB"); /* * Pass the caller out an AdapterFibContext. * * Note that because we only support one opener, we * basically ignore this. Set the caller's context to a magic * number just in case. * * The Linux code hands the driver a pointer into kernel space, * and then trusts it when the caller hands it back. Aiee! * Here, we give it the proc pointer of the per-adapter aif * thread. It's only used as a sanity check in other calls. */ i = (int)sc->aifthread; error = copyout(&i, arg, sizeof(i)); break; case FSACTL_GET_NEXT_ADAPTER_FIB: arg = *(caddr_t*)arg; case FSACTL_LNX_GET_NEXT_ADAPTER_FIB: debug(1, "FSACTL_GET_NEXT_ADAPTER_FIB"); error = aac_getnext_aif(sc, arg); break; case FSACTL_CLOSE_GET_ADAPTER_FIB: case FSACTL_LNX_CLOSE_GET_ADAPTER_FIB: debug(1, "FSACTL_CLOSE_GET_ADAPTER_FIB"); /* don't do anything here */ break; case FSACTL_MINIPORT_REV_CHECK: arg = *(caddr_t*)arg; case FSACTL_LNX_MINIPORT_REV_CHECK: debug(1, "FSACTL_MINIPORT_REV_CHECK"); error = aac_rev_check(sc, arg); break; case FSACTL_QUERY_DISK: arg = *(caddr_t*)arg; case FSACTL_LNX_QUERY_DISK: debug(1, "FSACTL_QUERY_DISK"); error = aac_query_disk(sc, arg); break; case FSACTL_DELETE_DISK: case FSACTL_LNX_DELETE_DISK: /* * We don't trust the underland to tell us when to delete a * container, rather we rely on an AIF coming from the * controller */ error = 0; break; default: debug(1, "unsupported cmd 0x%lx\n", cmd); error = EINVAL; break; } return(error); } static int aac_poll(dev_t dev, int poll_events, d_thread_t *td) { struct aac_softc *sc; int revents; sc = dev->si_drv1; revents = 0; AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); if ((poll_events & (POLLRDNORM | POLLIN)) != 0) { if (sc->aac_aifq_tail != sc->aac_aifq_head) revents |= poll_events & (POLLIN | POLLRDNORM); } AAC_LOCK_RELEASE(&sc->aac_aifq_lock); if (revents == 0) { if (poll_events & (POLLIN | POLLRDNORM)) selrecord(td, &sc->rcv_select); } return (revents); } /* * Send a FIB supplied from userspace */ static int aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib) { struct aac_command *cm; int size, error; debug_called(2); cm = NULL; /* * Get a command */ if (aac_alloc_command(sc, &cm)) { error = EBUSY; goto out; } /* * Fetch the FIB header, then re-copy to get data as well. */ if ((error = copyin(ufib, cm->cm_fib, sizeof(struct aac_fib_header))) != 0) goto out; size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header); if (size > sizeof(struct aac_fib)) { device_printf(sc->aac_dev, "incoming FIB oversized (%d > %d)\n", size, sizeof(struct aac_fib)); size = sizeof(struct aac_fib); } if ((error = copyin(ufib, cm->cm_fib, size)) != 0) goto out; cm->cm_fib->Header.Size = size; cm->cm_timestamp = time_second; /* * Pass the FIB to the controller, wait for it to complete. */ if ((error = aac_wait_command(cm, 30)) != 0) { /* XXX user timeout? */ device_printf(sc->aac_dev, "aac_wait_command return %d\n", error); goto out; } /* * Copy the FIB and data back out to the caller. */ size = cm->cm_fib->Header.Size; if (size > sizeof(struct aac_fib)) { device_printf(sc->aac_dev, "outbound FIB oversized (%d > %d)\n", size, sizeof(struct aac_fib)); size = sizeof(struct aac_fib); } error = copyout(cm->cm_fib, ufib, size); out: if (cm != NULL) { aac_release_command(cm); } return(error); } /* * Handle an AIF sent to us by the controller; queue it for later reference. * If the queue fills up, then drop the older entries. */ static void aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib) { struct aac_aif_command *aif; struct aac_container *co, *co_next; struct aac_mntinfo *mi; struct aac_mntinforesp *mir = NULL; u_int16_t rsize; int next, found; int added = 0, i = 0; debug_called(2); aif = (struct aac_aif_command*)&fib->data[0]; aac_print_aif(sc, aif); /* Is it an event that we should care about? */ switch (aif->command) { case AifCmdEventNotify: switch (aif->data.EN.type) { case AifEnAddContainer: case AifEnDeleteContainer: /* * A container was added or deleted, but the message * doesn't tell us anything else! Re-enumerate the * containers and sort things out. */ aac_alloc_sync_fib(sc, &fib, 0); mi = (struct aac_mntinfo *)&fib->data[0]; do { /* * Ask the controller for its containers one at * a time. * XXX What if the controller's list changes * midway through this enumaration? * XXX This should be done async. */ bzero(mi, sizeof(struct aac_mntinfo)); mi->Command = VM_NameServe; mi->MntType = FT_FILESYS; mi->MntCount = i; rsize = sizeof(mir); if (aac_sync_fib(sc, ContainerCommand, 0, fib, sizeof(struct aac_mntinfo))) { debug(2, "Error probing container %d\n", i); continue; } mir = (struct aac_mntinforesp *)&fib->data[0]; /* * Check the container against our list. * co->co_found was already set to 0 in a * previous run. */ if ((mir->Status == ST_OK) && (mir->MntTable[0].VolType != CT_NONE)) { found = 0; TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) { if (co->co_mntobj.ObjectId == mir->MntTable[0].ObjectId) { co->co_found = 1; found = 1; break; } } /* * If the container matched, continue * in the list. */ if (found) { i++; continue; } /* * This is a new container. Do all the * appropriate things to set it up. */ aac_add_container(sc, mir, 1); added = 1; } i++; } while ((i < mir->MntRespCount) && (i < AAC_MAX_CONTAINERS)); aac_release_sync_fib(sc); /* * Go through our list of containers and see which ones * were not marked 'found'. Since the controller didn't * list them they must have been deleted. Do the * appropriate steps to destroy the device. Also reset * the co->co_found field. */ co = TAILQ_FIRST(&sc->aac_container_tqh); while (co != NULL) { if (co->co_found == 0) { device_delete_child(sc->aac_dev, co->co_disk); co_next = TAILQ_NEXT(co, co_link); AAC_LOCK_ACQUIRE(&sc-> aac_container_lock); TAILQ_REMOVE(&sc->aac_container_tqh, co, co_link); AAC_LOCK_RELEASE(&sc-> aac_container_lock); FREE(co, M_AACBUF); co = co_next; } else { co->co_found = 0; co = TAILQ_NEXT(co, co_link); } } /* Attach the newly created containers */ if (added) bus_generic_attach(sc->aac_dev); break; default: break; } default: break; } /* Copy the AIF data to the AIF queue for ioctl retrieval */ AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); next = (sc->aac_aifq_head + 1) % AAC_AIFQ_LENGTH; if (next != sc->aac_aifq_tail) { bcopy(aif, &sc->aac_aifq[next], sizeof(struct aac_aif_command)); sc->aac_aifq_head = next; /* On the off chance that someone is sleeping for an aif... */ if (sc->aac_state & AAC_STATE_AIF_SLEEPER) wakeup(sc->aac_aifq); /* Wakeup any poll()ers */ selwakeup(&sc->rcv_select); } AAC_LOCK_RELEASE(&sc->aac_aifq_lock); return; } /* * Return the Revision of the driver to userspace and check to see if the * userspace app is possibly compatible. This is extremely bogus since * our driver doesn't follow Adaptec's versioning system. Cheat by just * returning what the card reported. */ static int aac_rev_check(struct aac_softc *sc, caddr_t udata) { struct aac_rev_check rev_check; struct aac_rev_check_resp rev_check_resp; int error = 0; debug_called(2); /* * Copyin the revision struct from userspace */ if ((error = copyin(udata, (caddr_t)&rev_check, sizeof(struct aac_rev_check))) != 0) { return error; } debug(2, "Userland revision= %d\n", rev_check.callingRevision.buildNumber); /* * Doctor up the response struct. */ rev_check_resp.possiblyCompatible = 1; rev_check_resp.adapterSWRevision.external.ul = sc->aac_revision.external.ul; rev_check_resp.adapterSWRevision.buildNumber = sc->aac_revision.buildNumber; return(copyout((caddr_t)&rev_check_resp, udata, sizeof(struct aac_rev_check_resp))); } /* * Pass the caller the next AIF in their queue */ static int aac_getnext_aif(struct aac_softc *sc, caddr_t arg) { struct get_adapter_fib_ioctl agf; int error, s; debug_called(2); if ((error = copyin(arg, &agf, sizeof(agf))) == 0) { /* * Check the magic number that we gave the caller. */ if (agf.AdapterFibContext != (int)sc->aifthread) { error = EFAULT; } else { s = splbio(); error = aac_return_aif(sc, agf.AifFib); if ((error == EAGAIN) && (agf.Wait)) { sc->aac_state |= AAC_STATE_AIF_SLEEPER; while (error == EAGAIN) { error = tsleep(sc->aac_aifq, PRIBIO | PCATCH, "aacaif", 0); if (error == 0) error = aac_return_aif(sc, agf.AifFib); } sc->aac_state &= ~AAC_STATE_AIF_SLEEPER; } splx(s); } } return(error); } /* * Hand the next AIF off the top of the queue out to userspace. */ static int aac_return_aif(struct aac_softc *sc, caddr_t uptr) { int error; debug_called(2); AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); if (sc->aac_aifq_tail == sc->aac_aifq_head) { error = EAGAIN; } else { error = copyout(&sc->aac_aifq[sc->aac_aifq_tail], uptr, sizeof(struct aac_aif_command)); if (error) device_printf(sc->aac_dev, "aac_return_aif: copyout returned %d\n", error); if (!error) sc->aac_aifq_tail = (sc->aac_aifq_tail + 1) % AAC_AIFQ_LENGTH; } AAC_LOCK_RELEASE(&sc->aac_aifq_lock); return(error); } /* * Give the userland some information about the container. The AAC arch * expects the driver to be a SCSI passthrough type driver, so it expects * the containers to have b:t:l numbers. Fake it. */ static int aac_query_disk(struct aac_softc *sc, caddr_t uptr) { struct aac_query_disk query_disk; struct aac_container *co; struct aac_disk *disk; int error, id; debug_called(2); disk = NULL; error = copyin(uptr, (caddr_t)&query_disk, sizeof(struct aac_query_disk)); if (error) return (error); id = query_disk.ContainerNumber; if (id == -1) return (EINVAL); AAC_LOCK_ACQUIRE(&sc->aac_container_lock); TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) { if (co->co_mntobj.ObjectId == id) break; } if (co == NULL) { query_disk.Valid = 0; query_disk.Locked = 0; query_disk.Deleted = 1; /* XXX is this right? */ } else { disk = device_get_softc(co->co_disk); query_disk.Valid = 1; query_disk.Locked = (disk->ad_flags & AAC_DISK_OPEN) ? 1 : 0; query_disk.Deleted = 0; query_disk.Bus = device_get_unit(sc->aac_dev); query_disk.Target = disk->unit; query_disk.Lun = 0; query_disk.UnMapped = 0; sprintf(&query_disk.diskDeviceName[0], "%s%d", disk->ad_disk.d_name, disk->ad_disk.d_unit); } AAC_LOCK_RELEASE(&sc->aac_container_lock); error = copyout((caddr_t)&query_disk, uptr, sizeof(struct aac_query_disk)); return (error); } static void aac_get_bus_info(struct aac_softc *sc) { struct aac_fib *fib; struct aac_ctcfg *c_cmd; struct aac_ctcfg_resp *c_resp; struct aac_vmioctl *vmi; struct aac_vmi_businf_resp *vmi_resp; struct aac_getbusinf businfo; struct aac_sim *caminf; device_t child; int i, found, error; aac_alloc_sync_fib(sc, &fib, 0); c_cmd = (struct aac_ctcfg *)&fib->data[0]; bzero(c_cmd, sizeof(struct aac_ctcfg)); c_cmd->Command = VM_ContainerConfig; c_cmd->cmd = CT_GET_SCSI_METHOD; c_cmd->param = 0; error = aac_sync_fib(sc, ContainerCommand, 0, fib, sizeof(struct aac_ctcfg)); if (error) { device_printf(sc->aac_dev, "Error %d sending " "VM_ContainerConfig command\n", error); aac_release_sync_fib(sc); return; } c_resp = (struct aac_ctcfg_resp *)&fib->data[0]; if (c_resp->Status != ST_OK) { device_printf(sc->aac_dev, "VM_ContainerConfig returned 0x%x\n", c_resp->Status); aac_release_sync_fib(sc); return; } sc->scsi_method_id = c_resp->param; vmi = (struct aac_vmioctl *)&fib->data[0]; bzero(vmi, sizeof(struct aac_vmioctl)); vmi->Command = VM_Ioctl; vmi->ObjType = FT_DRIVE; vmi->MethId = sc->scsi_method_id; vmi->ObjId = 0; vmi->IoctlCmd = GetBusInfo; error = aac_sync_fib(sc, ContainerCommand, 0, fib, sizeof(struct aac_vmioctl)); if (error) { device_printf(sc->aac_dev, "Error %d sending VMIoctl command\n", error); aac_release_sync_fib(sc); return; } vmi_resp = (struct aac_vmi_businf_resp *)&fib->data[0]; if (vmi_resp->Status != ST_OK) { device_printf(sc->aac_dev, "VM_Ioctl returned %d\n", vmi_resp->Status); aac_release_sync_fib(sc); return; } bcopy(&vmi_resp->BusInf, &businfo, sizeof(struct aac_getbusinf)); aac_release_sync_fib(sc); found = 0; for (i = 0; i < businfo.BusCount; i++) { if (businfo.BusValid[i] != AAC_BUS_VALID) continue; caminf = (struct aac_sim *)malloc( sizeof(struct aac_sim), M_AACBUF, M_NOWAIT | M_ZERO); if (caminf == NULL) continue; child = device_add_child(sc->aac_dev, "aacp", -1); if (child == NULL) { device_printf(sc->aac_dev, "device_add_child failed\n"); continue; } caminf->TargetsPerBus = businfo.TargetsPerBus; caminf->BusNumber = i; caminf->InitiatorBusId = businfo.InitiatorBusId[i]; caminf->aac_sc = sc; caminf->sim_dev = child; device_set_ivars(child, caminf); device_set_desc(child, "SCSI Passthrough Bus"); TAILQ_INSERT_TAIL(&sc->aac_sim_tqh, caminf, sim_link); found = 1; } if (found) bus_generic_attach(sc->aac_dev); return; }