aac.c revision 90275
190075Sobrien/*- 290075Sobrien * Copyright (c) 2000 Michael Smith 390075Sobrien * Copyright (c) 2001 Scott Long 490075Sobrien * Copyright (c) 2000 BSDi 590075Sobrien * Copyright (c) 2001 Adaptec, Inc. 690075Sobrien * All rights reserved. 790075Sobrien * 890075Sobrien * Redistribution and use in source and binary forms, with or without 990075Sobrien * modification, are permitted provided that the following conditions 1090075Sobrien * are met: 1190075Sobrien * 1. Redistributions of source code must retain the above copyright 1290075Sobrien * notice, this list of conditions and the following disclaimer. 1390075Sobrien * 2. Redistributions in binary form must reproduce the above copyright 1452284Sobrien * notice, this list of conditions and the following disclaimer in the 1590075Sobrien * documentation and/or other materials provided with the distribution. 1652284Sobrien * 1752284Sobrien * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1852284Sobrien * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1952284Sobrien * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 2052284Sobrien * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 2190075Sobrien * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 2252284Sobrien * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2352284Sobrien * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2452284Sobrien * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2550397Sobrien * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2690075Sobrien * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2790075Sobrien * SUCH DAMAGE. 2890075Sobrien * 2990075Sobrien * $FreeBSD: head/sys/dev/aac/aac.c 90275 2002-02-06 01:34:09Z scottl $ 3090075Sobrien */ 3190075Sobrien 3290075Sobrien/* 3390075Sobrien * Driver for the Adaptec 'FSA' family of PCI/SCSI RAID adapters. 3490075Sobrien */ 3590075Sobrien 3690075Sobrien#include "opt_aac.h" 3790075Sobrien 3890075Sobrien/* #include <stddef.h> */ 3990075Sobrien#include <sys/param.h> 4050397Sobrien#include <sys/systm.h> 4190075Sobrien#include <sys/malloc.h> 4250397Sobrien#include <sys/kernel.h> 4350397Sobrien#include <sys/kthread.h> 4450397Sobrien#include <sys/lock.h> 4550397Sobrien#include <sys/mutex.h> 4690075Sobrien#include <sys/sysctl.h> 4790075Sobrien#include <sys/poll.h> 4890075Sobrien#if __FreeBSD_version >= 500005 4990075Sobrien#include <sys/selinfo.h> 5050397Sobrien#else 5150397Sobrien#include <sys/select.h> 5290075Sobrien#endif 5390075Sobrien 5490075Sobrien#include <dev/aac/aac_compat.h> 5590075Sobrien 5690075Sobrien#include <sys/bus.h> 5790075Sobrien#include <sys/conf.h> 5890075Sobrien#include <sys/devicestat.h> 5990075Sobrien#include <sys/disk.h> 6090075Sobrien#include <sys/file.h> 6190075Sobrien#include <sys/signalvar.h> 6290075Sobrien#include <sys/time.h> 6390075Sobrien#include <sys/eventhandler.h> 6490075Sobrien 6590075Sobrien#include <machine/bus_memio.h> 6690075Sobrien#include <machine/bus.h> 6790075Sobrien#include <machine/resource.h> 6890075Sobrien 6950397Sobrien#include <dev/aac/aacreg.h> 7090075Sobrien#include <dev/aac/aac_ioctl.h> 7190075Sobrien#include <dev/aac/aacvar.h> 7290075Sobrien#include <dev/aac/aac_tables.h> 7390075Sobrien 7490075Sobrienstatic void aac_startup(void *arg); 7590075Sobrienstatic void aac_add_container(struct aac_softc *sc, 7650397Sobrien struct aac_mntinforesponse *mir, int f); 7750397Sobrien 7850397Sobrien/* Command Processing */ 7990075Sobrienstatic void aac_startio(struct aac_softc *sc); 8050397Sobrienstatic void aac_timeout(struct aac_softc *sc); 8150397Sobrienstatic int aac_start(struct aac_command *cm); 8250397Sobrienstatic void aac_complete(void *context, int pending); 8350397Sobrienstatic int aac_bio_command(struct aac_softc *sc, struct aac_command **cmp); 8490075Sobrienstatic void aac_bio_complete(struct aac_command *cm); 8550397Sobrienstatic int aac_wait_command(struct aac_command *cm, int timeout); 8650397Sobrienstatic void aac_host_command(struct aac_softc *sc); 8750397Sobrienstatic void aac_host_response(struct aac_softc *sc); 8850397Sobrien 8950397Sobrien/* Command Buffer Management */ 9090075Sobrienstatic int aac_alloc_command(struct aac_softc *sc, 9150397Sobrien struct aac_command **cmp); 9250397Sobrienstatic void aac_release_command(struct aac_command *cm); 9350397Sobrienstatic void aac_map_command_helper(void *arg, bus_dma_segment_t *segs, 9450397Sobrien int nseg, int error); 9590075Sobrienstatic int aac_alloc_commands(struct aac_softc *sc); 9650397Sobrienstatic void aac_free_commands(struct aac_softc *sc); 9750397Sobrienstatic void aac_map_command(struct aac_command *cm); 9850397Sobrienstatic void aac_unmap_command(struct aac_command *cm); 9950397Sobrien 10090075Sobrien/* Hardware Interface */ 10150397Sobrienstatic void aac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, 10250397Sobrien int error); 10350397Sobrienstatic int aac_check_firmware(struct aac_softc *sc); 10450397Sobrienstatic int aac_init(struct aac_softc *sc); 10550397Sobrienstatic int aac_sync_command(struct aac_softc *sc, u_int32_t command, 10650397Sobrien u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, 10750397Sobrien u_int32_t arg3, u_int32_t *sp); 10850397Sobrienstatic int aac_sync_fib(struct aac_softc *sc, u_int32_t command, 10950397Sobrien u_int32_t xferstate, void *data, 11050397Sobrien u_int16_t datasize, void *result, 11150397Sobrien u_int16_t *resultsize); 11250397Sobrienstatic int aac_enqueue_fib(struct aac_softc *sc, int queue, 11350397Sobrien struct aac_command *cm); 11450397Sobrienstatic int aac_dequeue_fib(struct aac_softc *sc, int queue, 11550397Sobrien u_int32_t *fib_size, struct aac_fib **fib_addr); 11650397Sobrienstatic int aac_enqueue_response(struct aac_softc *sc, int queue, 11750397Sobrien struct aac_fib *fib); 11850397Sobrien 11950397Sobrien/* Falcon/PPC interface */ 12050397Sobrienstatic int aac_fa_get_fwstatus(struct aac_softc *sc); 12150397Sobrienstatic void aac_fa_qnotify(struct aac_softc *sc, int qbit); 12250397Sobrienstatic int aac_fa_get_istatus(struct aac_softc *sc); 12350397Sobrienstatic void aac_fa_clear_istatus(struct aac_softc *sc, int mask); 12450397Sobrienstatic void aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 12550397Sobrien u_int32_t arg0, u_int32_t arg1, 12650397Sobrien u_int32_t arg2, u_int32_t arg3); 12750397Sobrienstatic int aac_fa_get_mailboxstatus(struct aac_softc *sc); 12850397Sobrienstatic void aac_fa_set_interrupts(struct aac_softc *sc, int enable); 12950397Sobrien 13050397Sobrienstruct aac_interface aac_fa_interface = { 13150397Sobrien aac_fa_get_fwstatus, 13290075Sobrien aac_fa_qnotify, 13350397Sobrien aac_fa_get_istatus, 13450397Sobrien aac_fa_clear_istatus, 13550397Sobrien aac_fa_set_mailbox, 13650397Sobrien aac_fa_get_mailboxstatus, 13750397Sobrien aac_fa_set_interrupts 13850397Sobrien}; 13950397Sobrien 14050397Sobrien/* StrongARM interface */ 14150397Sobrienstatic int aac_sa_get_fwstatus(struct aac_softc *sc); 14250397Sobrienstatic void aac_sa_qnotify(struct aac_softc *sc, int qbit); 14350397Sobrienstatic int aac_sa_get_istatus(struct aac_softc *sc); 14450397Sobrienstatic void aac_sa_clear_istatus(struct aac_softc *sc, int mask); 14550397Sobrienstatic void aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 14650397Sobrien u_int32_t arg0, u_int32_t arg1, 14750397Sobrien u_int32_t arg2, u_int32_t arg3); 14850397Sobrienstatic int aac_sa_get_mailboxstatus(struct aac_softc *sc); 14950397Sobrienstatic void aac_sa_set_interrupts(struct aac_softc *sc, int enable); 15050397Sobrien 15150397Sobrienstruct aac_interface aac_sa_interface = { 15250397Sobrien aac_sa_get_fwstatus, 15350397Sobrien aac_sa_qnotify, 15450397Sobrien aac_sa_get_istatus, 15550397Sobrien aac_sa_clear_istatus, 15650397Sobrien aac_sa_set_mailbox, 15750397Sobrien aac_sa_get_mailboxstatus, 15850397Sobrien aac_sa_set_interrupts 15950397Sobrien}; 16050397Sobrien 16150397Sobrien/* i960Rx interface */ 16250397Sobrienstatic int aac_rx_get_fwstatus(struct aac_softc *sc); 16350397Sobrienstatic void aac_rx_qnotify(struct aac_softc *sc, int qbit); 16490075Sobrienstatic int aac_rx_get_istatus(struct aac_softc *sc); 16550397Sobrienstatic void aac_rx_clear_istatus(struct aac_softc *sc, int mask); 16650397Sobrienstatic void aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 16750397Sobrien u_int32_t arg0, u_int32_t arg1, 16850397Sobrien u_int32_t arg2, u_int32_t arg3); 16990075Sobrienstatic int aac_rx_get_mailboxstatus(struct aac_softc *sc); 17050397Sobrienstatic void aac_rx_set_interrupts(struct aac_softc *sc, int enable); 17150397Sobrien 17250397Sobrienstruct aac_interface aac_rx_interface = { 17390075Sobrien aac_rx_get_fwstatus, 17490075Sobrien aac_rx_qnotify, 17590075Sobrien aac_rx_get_istatus, 17690075Sobrien aac_rx_clear_istatus, 17790075Sobrien aac_rx_set_mailbox, 17890075Sobrien aac_rx_get_mailboxstatus, 17990075Sobrien aac_rx_set_interrupts 18090075Sobrien}; 18190075Sobrien 18290075Sobrien/* Debugging and Diagnostics */ 18390075Sobrienstatic void aac_describe_controller(struct aac_softc *sc); 18490075Sobrienstatic char *aac_describe_code(struct aac_code_lookup *table, 18590075Sobrien u_int32_t code); 18690075Sobrien 18790075Sobrien/* Management Interface */ 18890075Sobrienstatic d_open_t aac_open; 18990075Sobrienstatic d_close_t aac_close; 19090075Sobrienstatic d_ioctl_t aac_ioctl; 19190075Sobrienstatic d_poll_t aac_poll; 19290075Sobrienstatic int aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib); 19390075Sobrienstatic void aac_handle_aif(struct aac_softc *sc, 19490075Sobrien struct aac_fib *fib); 19590075Sobrienstatic int aac_rev_check(struct aac_softc *sc, caddr_t udata); 19690075Sobrienstatic int aac_getnext_aif(struct aac_softc *sc, caddr_t arg); 19790075Sobrienstatic int aac_return_aif(struct aac_softc *sc, caddr_t uptr); 19890075Sobrienstatic int aac_query_disk(struct aac_softc *sc, caddr_t uptr); 19990075Sobrien 20090075Sobrien#define AAC_CDEV_MAJOR 150 20190075Sobrien 20290075Sobrienstatic struct cdevsw aac_cdevsw = { 20390075Sobrien aac_open, /* open */ 20490075Sobrien aac_close, /* close */ 20552284Sobrien noread, /* read */ 20652284Sobrien nowrite, /* write */ 20790075Sobrien aac_ioctl, /* ioctl */ 20852284Sobrien aac_poll, /* poll */ 20952284Sobrien nommap, /* mmap */ 21052284Sobrien nostrategy, /* strategy */ 21152284Sobrien "aac", /* name */ 21252284Sobrien AAC_CDEV_MAJOR, /* major */ 21352284Sobrien nodump, /* dump */ 21452284Sobrien nopsize, /* psize */ 21552284Sobrien 0, /* flags */ 21652284Sobrien#if __FreeBSD_version < 500005 21752284Sobrien -1, /* bmaj */ 21852284Sobrien#endif 21952284Sobrien}; 22052284Sobrien 22152284SobrienMALLOC_DEFINE(M_AACBUF, "aacbuf", "Buffers for the AAC driver"); 22290075Sobrien 22352284Sobrien/* sysctl node */ 22452284SobrienSYSCTL_NODE(_hw, OID_AUTO, aac, CTLFLAG_RD, 0, "AAC driver parameters"); 22552284Sobrien 22690075Sobrien/* 22750397Sobrien * Device Interface 22850397Sobrien */ 22950397Sobrien 23050397Sobrien/* 23150397Sobrien * Initialise the controller and softc 23250397Sobrien */ 23350397Sobrienint 23450397Sobrienaac_attach(struct aac_softc *sc) 23550397Sobrien{ 23650397Sobrien int error, unit; 23750397Sobrien 23850397Sobrien debug_called(1); 23950397Sobrien 24050397Sobrien /* 24150397Sobrien * Initialise per-controller queues. 24250397Sobrien */ 24350397Sobrien aac_initq_free(sc); 24450397Sobrien aac_initq_ready(sc); 24550397Sobrien aac_initq_busy(sc); 24650397Sobrien aac_initq_complete(sc); 24750397Sobrien aac_initq_bio(sc); 24850397Sobrien 24950397Sobrien#if __FreeBSD_version >= 500005 25050397Sobrien /* 25150397Sobrien * Initialise command-completion task. 25250397Sobrien */ 25350397Sobrien TASK_INIT(&sc->aac_task_complete, 0, aac_complete, sc); 25450397Sobrien#endif 25550397Sobrien 25650397Sobrien /* disable interrupts before we enable anything */ 25750397Sobrien AAC_MASK_INTERRUPTS(sc); 25850397Sobrien 25950397Sobrien /* mark controller as suspended until we get ourselves organised */ 26050397Sobrien sc->aac_state |= AAC_STATE_SUSPEND; 26150397Sobrien 26250397Sobrien /* 26350397Sobrien * Check that the firmware on the card is supported. 26450397Sobrien */ 26550397Sobrien if ((error = aac_check_firmware(sc)) != 0) 26650397Sobrien return(error); 26750397Sobrien 26850397Sobrien /* 26950397Sobrien * Allocate command structures. 27050397Sobrien */ 27150397Sobrien if ((error = aac_alloc_commands(sc)) != 0) 27250397Sobrien return(error); 27350397Sobrien 27450397Sobrien /* 27550397Sobrien * Initialise the adapter. 27650397Sobrien */ 27750397Sobrien if ((error = aac_init(sc)) != 0) 27850397Sobrien return(error); 27950397Sobrien 28050397Sobrien /* 28150397Sobrien * Print a little information about the controller. 28250397Sobrien */ 28350397Sobrien aac_describe_controller(sc); 28450397Sobrien 28550397Sobrien /* 28650397Sobrien * Register to probe our containers later. 28750397Sobrien */ 28850397Sobrien TAILQ_INIT(&sc->aac_container_tqh); 28952284Sobrien AAC_LOCK_INIT(&sc->aac_container_lock, "AAC container lock"); 29090075Sobrien 29190075Sobrien /* 29290075Sobrien * Lock for the AIF queue 29390075Sobrien */ 29490075Sobrien AAC_LOCK_INIT(&sc->aac_aifq_lock, "AAC AIF lock"); 29590075Sobrien 29690075Sobrien sc->aac_ich.ich_func = aac_startup; 29790075Sobrien sc->aac_ich.ich_arg = sc; 29890075Sobrien if (config_intrhook_establish(&sc->aac_ich) != 0) { 29990075Sobrien device_printf(sc->aac_dev, 30090075Sobrien "can't establish configuration hook\n"); 30190075Sobrien return(ENXIO); 30290075Sobrien } 30390075Sobrien 30490075Sobrien /* 30590075Sobrien * Make the control device. 30690075Sobrien */ 30790075Sobrien unit = device_get_unit(sc->aac_dev); 30890075Sobrien sc->aac_dev_t = make_dev(&aac_cdevsw, unit, UID_ROOT, GID_WHEEL, 0644, 30990075Sobrien "aac%d", unit); 31090075Sobrien#if __FreeBSD_version > 500005 31190075Sobrien (void)make_dev_alias(sc->aac_dev_t, "afa%d", unit); 31290075Sobrien (void)make_dev_alias(sc->aac_dev_t, "hpn%d", unit); 31390075Sobrien#endif 31490075Sobrien sc->aac_dev_t->si_drv1 = sc; 31590075Sobrien 31690075Sobrien /* Create the AIF thread */ 31790075Sobrien#if __FreeBSD_version > 500005 31890075Sobrien if (kthread_create((void(*)(void *))aac_host_command, sc, 31990075Sobrien &sc->aifthread, 0, "aac%daif", unit)) 32090075Sobrien#else 32190075Sobrien if (kthread_create((void(*)(void *))aac_host_command, sc, 32290075Sobrien &sc->aifthread, "aac%daif", unit)) 32390075Sobrien#endif 32490075Sobrien panic("Could not create AIF thread\n"); 32590075Sobrien 32690075Sobrien /* Register the shutdown method to only be called post-dump */ 32790075Sobrien if ((EVENTHANDLER_REGISTER(shutdown_final, aac_shutdown, sc->aac_dev, 32890075Sobrien SHUTDOWN_PRI_DEFAULT)) == NULL) 32990075Sobrien device_printf(sc->aac_dev, "shutdown event registration failed\n"); 33090075Sobrien 33190075Sobrien return(0); 33290075Sobrien} 33390075Sobrien 33490075Sobrien/* 33590075Sobrien * Probe for containers, create disks. 33690075Sobrien */ 33790075Sobrienstatic void 33890075Sobrienaac_startup(void *arg) 33990075Sobrien{ 34090075Sobrien struct aac_softc *sc; 34152284Sobrien struct aac_mntinfo mi; 34252284Sobrien struct aac_mntinforesponse mir; 34352284Sobrien u_int16_t rsize; 34452284Sobrien int i = 0; 34552284Sobrien 34652284Sobrien debug_called(1); 34752284Sobrien 34852284Sobrien sc = (struct aac_softc *)arg; 34952284Sobrien 35052284Sobrien /* disconnect ourselves from the intrhook chain */ 35152284Sobrien config_intrhook_disestablish(&sc->aac_ich); 35252284Sobrien 35352284Sobrien /* loop over possible containers */ 35452284Sobrien mi.Command = VM_NameServe; 35552284Sobrien mi.MntType = FT_FILESYS; 35652284Sobrien do { 35752284Sobrien /* request information on this container */ 35890075Sobrien mi.MntCount = i; 35990075Sobrien rsize = sizeof(mir); 36090075Sobrien if (aac_sync_fib(sc, ContainerCommand, 0, &mi, 36190075Sobrien sizeof(struct aac_mntinfo), &mir, &rsize)) { 36290075Sobrien debug(2, "error probing container %d", i); 36390075Sobrien continue; 36490075Sobrien } 36590075Sobrien /* check response size */ 36690075Sobrien if (rsize != sizeof(mir)) { 36790075Sobrien debug(2, "container info response wrong size " 36890075Sobrien "(%d should be %d)", rsize, sizeof(mir)); 36990075Sobrien continue; 37090075Sobrien } 37190075Sobrien 37290075Sobrien aac_add_container(sc, &mir, 0); 37390075Sobrien i++; 37490075Sobrien } while ((i < mir.MntRespCount) && (i < AAC_MAX_CONTAINERS)); 37590075Sobrien 37690075Sobrien /* poke the bus to actually attach the child devices */ 37790075Sobrien if (bus_generic_attach(sc->aac_dev)) 37890075Sobrien device_printf(sc->aac_dev, "bus_generic_attach failed\n"); 37990075Sobrien 38090075Sobrien /* mark the controller up */ 38190075Sobrien sc->aac_state &= ~AAC_STATE_SUSPEND; 38290075Sobrien 38390075Sobrien /* enable interrupts now */ 38490075Sobrien AAC_UNMASK_INTERRUPTS(sc); 38590075Sobrien 38690075Sobrien /* enable the timeout watchdog */ 38790075Sobrien timeout((timeout_t*)aac_timeout, sc, AAC_PERIODIC_INTERVAL * hz); 38890075Sobrien} 38990075Sobrien 39090075Sobrien/* 39190075Sobrien * Create a device to respresent a new container 39290075Sobrien */ 39390075Sobrienstatic void 39490075Sobrienaac_add_container(struct aac_softc *sc, struct aac_mntinforesponse *mir, int f) 39590075Sobrien{ 39690075Sobrien struct aac_container *co; 39790075Sobrien device_t child; 39890075Sobrien 39990075Sobrien /* 40090075Sobrien * Check container volume type for validity. Note that many of 40190075Sobrien * the possible types may never show up. 40290075Sobrien */ 40390075Sobrien if ((mir->Status == ST_OK) && (mir->MntTable[0].VolType != CT_NONE)) { 40490075Sobrien MALLOC(co, struct aac_container *, sizeof *co, M_AACBUF, 40590075Sobrien M_NOWAIT); 40690075Sobrien if (co == NULL) 40790075Sobrien panic("Out of memory?!\n"); 40890075Sobrien debug(1, "id %x name '%.16s' size %u type %d", 40990075Sobrien mir->MntTable[0].ObjectId, 41090075Sobrien mir->MntTable[0].FileSystemName, 41190075Sobrien mir->MntTable[0].Capacity, mir->MntTable[0].VolType); 41290075Sobrien 41390075Sobrien if ((child = device_add_child(sc->aac_dev, NULL, -1)) == NULL) 41490075Sobrien device_printf(sc->aac_dev, "device_add_child failed\n"); 41590075Sobrien else 41690075Sobrien device_set_ivars(child, co); 41790075Sobrien device_set_desc(child, aac_describe_code(aac_container_types, 41890075Sobrien mir->MntTable[0].VolType)); 41990075Sobrien co->co_disk = child; 42090075Sobrien co->co_found = f; 42190075Sobrien bcopy(&mir->MntTable[0], &co->co_mntobj, 42290075Sobrien sizeof(struct aac_mntobj)); 42390075Sobrien AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 42490075Sobrien TAILQ_INSERT_TAIL(&sc->aac_container_tqh, co, co_link); 42590075Sobrien AAC_LOCK_RELEASE(&sc->aac_container_lock); 42690075Sobrien } 42790075Sobrien} 42890075Sobrien 42990075Sobrien/* 43090075Sobrien * Free all of the resources associated with (sc) 43190075Sobrien * 43290075Sobrien * Should not be called if the controller is active. 43390075Sobrien */ 43490075Sobrienvoid 43590075Sobrienaac_free(struct aac_softc *sc) 43690075Sobrien{ 43790075Sobrien debug_called(1); 43890075Sobrien 43990075Sobrien /* remove the control device */ 44090075Sobrien if (sc->aac_dev_t != NULL) 44190075Sobrien destroy_dev(sc->aac_dev_t); 44290075Sobrien 44390075Sobrien /* throw away any FIB buffers, discard the FIB DMA tag */ 44490075Sobrien if (sc->aac_fibs != NULL) 44590075Sobrien aac_free_commands(sc); 44690075Sobrien if (sc->aac_fib_dmat) 44790075Sobrien bus_dma_tag_destroy(sc->aac_fib_dmat); 44890075Sobrien 44990075Sobrien /* destroy the common area */ 45090075Sobrien if (sc->aac_common) { 45190075Sobrien bus_dmamap_unload(sc->aac_common_dmat, sc->aac_common_dmamap); 45290075Sobrien bus_dmamem_free(sc->aac_common_dmat, sc->aac_common, 45390075Sobrien sc->aac_common_dmamap); 45490075Sobrien } 45590075Sobrien if (sc->aac_common_dmat) 45690075Sobrien bus_dma_tag_destroy(sc->aac_common_dmat); 45790075Sobrien 45890075Sobrien /* disconnect the interrupt handler */ 45990075Sobrien if (sc->aac_intr) 46090075Sobrien bus_teardown_intr(sc->aac_dev, sc->aac_irq, sc->aac_intr); 46190075Sobrien if (sc->aac_irq != NULL) 46290075Sobrien bus_release_resource(sc->aac_dev, SYS_RES_IRQ, sc->aac_irq_rid, 46390075Sobrien sc->aac_irq); 46490075Sobrien 46590075Sobrien /* destroy data-transfer DMA tag */ 46690075Sobrien if (sc->aac_buffer_dmat) 46790075Sobrien bus_dma_tag_destroy(sc->aac_buffer_dmat); 46890075Sobrien 46990075Sobrien /* destroy the parent DMA tag */ 47090075Sobrien if (sc->aac_parent_dmat) 47190075Sobrien bus_dma_tag_destroy(sc->aac_parent_dmat); 47290075Sobrien 47390075Sobrien /* release the register window mapping */ 47490075Sobrien if (sc->aac_regs_resource != NULL) 47590075Sobrien bus_release_resource(sc->aac_dev, SYS_RES_MEMORY, 47690075Sobrien sc->aac_regs_rid, sc->aac_regs_resource); 47790075Sobrien} 47890075Sobrien 47990075Sobrien/* 48090075Sobrien * Disconnect from the controller completely, in preparation for unload. 48190075Sobrien */ 48290075Sobrienint 48390075Sobrienaac_detach(device_t dev) 48490075Sobrien{ 48590075Sobrien struct aac_softc *sc; 48690075Sobrien#if AAC_BROKEN 48790075Sobrien int error; 48890075Sobrien#endif 48990075Sobrien 49090075Sobrien debug_called(1); 49190075Sobrien 49290075Sobrien sc = device_get_softc(dev); 49390075Sobrien 49490075Sobrien if (sc->aac_state & AAC_STATE_OPEN) 49590075Sobrien return(EBUSY); 49690075Sobrien 49790075Sobrien#if AAC_BROKEN 49890075Sobrien if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 49990075Sobrien sc->aifflags |= AAC_AIFFLAGS_EXIT; 50090075Sobrien wakeup(sc->aifthread); 50190075Sobrien tsleep(sc->aac_dev, PUSER | PCATCH, "aacdch", 30 * hz); 50290075Sobrien } 50390075Sobrien 50490075Sobrien if (sc->aifflags & AAC_AIFFLAGS_RUNNING) 50590075Sobrien panic("Cannot shutdown AIF thread\n"); 50690075Sobrien 50790075Sobrien if ((error = aac_shutdown(dev))) 50890075Sobrien return(error); 50990075Sobrien 51090075Sobrien aac_free(sc); 51190075Sobrien 51290075Sobrien return(0); 51390075Sobrien#else 51490075Sobrien return (EBUSY); 51590075Sobrien#endif 51690075Sobrien} 51790075Sobrien 51890075Sobrien/* 51990075Sobrien * Bring the controller down to a dormant state and detach all child devices. 52090075Sobrien * 52190075Sobrien * This function is called before detach or system shutdown. 52290075Sobrien * 52390075Sobrien * Note that we can assume that the bioq on the controller is empty, as we won't 52490075Sobrien * allow shutdown if any device is open. 52590075Sobrien */ 52690075Sobrienint 52790075Sobrienaac_shutdown(device_t dev) 52890075Sobrien{ 52990075Sobrien struct aac_softc *sc; 53090075Sobrien struct aac_close_command cc; 53190075Sobrien int s, i; 53290075Sobrien 53390075Sobrien debug_called(1); 53490075Sobrien 53590075Sobrien sc = device_get_softc(dev); 53690075Sobrien 53790075Sobrien s = splbio(); 53890075Sobrien 53990075Sobrien sc->aac_state |= AAC_STATE_SUSPEND; 54090075Sobrien 54190075Sobrien /* 54290075Sobrien * Send a Container shutdown followed by a HostShutdown FIB to the 54390075Sobrien * controller to convince it that we don't want to talk to it anymore. 54490075Sobrien * We've been closed and all I/O completed already 54590075Sobrien */ 54690075Sobrien device_printf(sc->aac_dev, "shutting down controller..."); 54790075Sobrien 54890075Sobrien cc.Command = VM_CloseAll; 54990075Sobrien cc.ContainerId = 0xffffffff; 55090075Sobrien if (aac_sync_fib(sc, ContainerCommand, 0, &cc, sizeof(cc), NULL, NULL)) 55190075Sobrien printf("FAILED.\n"); 55290075Sobrien else { 55390075Sobrien i = 0; 55490075Sobrien /* 55590075Sobrien * XXX Issuing this command to the controller makes it shut down 55690075Sobrien * but also keeps it from coming back up without a reset of the 55790075Sobrien * PCI bus. This is not desirable if you are just unloading the 55890075Sobrien * driver module with the intent to reload it later. 55990075Sobrien */ 56090075Sobrien if (aac_sync_fib(sc, FsaHostShutdown, AAC_FIBSTATE_SHUTDOWN, &i, 56190075Sobrien sizeof(i), NULL, NULL)) { 56290075Sobrien printf("FAILED.\n"); 56390075Sobrien } else { 56490075Sobrien printf("done.\n"); 56590075Sobrien } 56690075Sobrien } 56790075Sobrien 56890075Sobrien AAC_MASK_INTERRUPTS(sc); 56990075Sobrien 57090075Sobrien splx(s); 57190075Sobrien return(0); 57290075Sobrien} 57390075Sobrien 57490075Sobrien/* 57590075Sobrien * Bring the controller to a quiescent state, ready for system suspend. 57690075Sobrien */ 57790075Sobrienint 57890075Sobrienaac_suspend(device_t dev) 57990075Sobrien{ 58090075Sobrien struct aac_softc *sc; 58190075Sobrien int s; 58290075Sobrien 58390075Sobrien debug_called(1); 58490075Sobrien 58590075Sobrien sc = device_get_softc(dev); 58690075Sobrien 58790075Sobrien s = splbio(); 58890075Sobrien 58990075Sobrien sc->aac_state |= AAC_STATE_SUSPEND; 59090075Sobrien 59190075Sobrien AAC_MASK_INTERRUPTS(sc); 59290075Sobrien splx(s); 59390075Sobrien return(0); 59490075Sobrien} 59590075Sobrien 59690075Sobrien/* 59790075Sobrien * Bring the controller back to a state ready for operation. 59890075Sobrien */ 59990075Sobrienint 60090075Sobrienaac_resume(device_t dev) 60190075Sobrien{ 60290075Sobrien struct aac_softc *sc; 60390075Sobrien 60490075Sobrien debug_called(1); 60590075Sobrien 60690075Sobrien sc = device_get_softc(dev); 60790075Sobrien 60890075Sobrien sc->aac_state &= ~AAC_STATE_SUSPEND; 60990075Sobrien AAC_UNMASK_INTERRUPTS(sc); 61090075Sobrien return(0); 61190075Sobrien} 61290075Sobrien 61390075Sobrien/* 61490075Sobrien * Take an interrupt. 61590075Sobrien */ 61690075Sobrienvoid 61790075Sobrienaac_intr(void *arg) 61890075Sobrien{ 61990075Sobrien struct aac_softc *sc; 62090075Sobrien u_int16_t reason; 62190075Sobrien 62290075Sobrien debug_called(2); 62390075Sobrien 62490075Sobrien sc = (struct aac_softc *)arg; 62590075Sobrien 62690075Sobrien reason = AAC_GET_ISTATUS(sc); 62790075Sobrien 62890075Sobrien /* controller wants to talk to the log */ 62990075Sobrien if (reason & AAC_DB_PRINTF) { 63090075Sobrien AAC_CLEAR_ISTATUS(sc, AAC_DB_PRINTF); 63190075Sobrien aac_print_printf(sc); 63290075Sobrien } 63390075Sobrien 63490075Sobrien /* controller has a message for us? */ 63590075Sobrien if (reason & AAC_DB_COMMAND_READY) { 63690075Sobrien AAC_CLEAR_ISTATUS(sc, AAC_DB_COMMAND_READY); 63790075Sobrien /* XXX What happens if the thread is already awake? */ 63890075Sobrien if (sc->aifflags & AAC_AIFFLAGS_RUNNING) { 63990075Sobrien sc->aifflags |= AAC_AIFFLAGS_PENDING; 64090075Sobrien wakeup(sc->aifthread); 64190075Sobrien } 64290075Sobrien } 64390075Sobrien 64490075Sobrien /* controller has a response for us? */ 64590075Sobrien if (reason & AAC_DB_RESPONSE_READY) { 64690075Sobrien AAC_CLEAR_ISTATUS(sc, AAC_DB_RESPONSE_READY); 64790075Sobrien aac_host_response(sc); 64890075Sobrien } 64990075Sobrien 65090075Sobrien /* 65190075Sobrien * spurious interrupts that we don't use - reset the mask and clear the 65290075Sobrien * interrupts 65390075Sobrien */ 65490075Sobrien if (reason & (AAC_DB_COMMAND_NOT_FULL | AAC_DB_RESPONSE_NOT_FULL)) { 65590075Sobrien AAC_UNMASK_INTERRUPTS(sc); 65690075Sobrien AAC_CLEAR_ISTATUS(sc, AAC_DB_COMMAND_NOT_FULL | 65790075Sobrien AAC_DB_RESPONSE_NOT_FULL); 65890075Sobrien } 65990075Sobrien}; 66090075Sobrien 66190075Sobrien/* 66290075Sobrien * Command Processing 66390075Sobrien */ 66490075Sobrien 66590075Sobrien/* 66690075Sobrien * Start as much queued I/O as possible on the controller 66790075Sobrien */ 66890075Sobrienstatic void 66990075Sobrienaac_startio(struct aac_softc *sc) 67090075Sobrien{ 67190075Sobrien struct aac_command *cm; 67290075Sobrien 67390075Sobrien debug_called(2); 67490075Sobrien 67590075Sobrien for (;;) { 67690075Sobrien /* 67790075Sobrien * Try to get a command that's been put off for lack of 67890075Sobrien * resources 67990075Sobrien */ 68090075Sobrien cm = aac_dequeue_ready(sc); 68190075Sobrien 68290075Sobrien /* 68390075Sobrien * Try to build a command off the bio queue (ignore error 68490075Sobrien * return) 68590075Sobrien */ 68690075Sobrien if (cm == NULL) 68790075Sobrien aac_bio_command(sc, &cm); 68890075Sobrien 68990075Sobrien /* nothing to do? */ 69090075Sobrien if (cm == NULL) 69190075Sobrien break; 69290075Sobrien 69390075Sobrien /* try to give the command to the controller */ 69490075Sobrien if (aac_start(cm) == EBUSY) { 69590075Sobrien /* put it on the ready queue for later */ 69690075Sobrien aac_requeue_ready(cm); 69790075Sobrien break; 69890075Sobrien } 69990075Sobrien } 70090075Sobrien} 70190075Sobrien 70290075Sobrien/* 70390075Sobrien * Deliver a command to the controller; allocate controller resources at the 70490075Sobrien * last moment when possible. 70590075Sobrien */ 70690075Sobrienstatic int 70790075Sobrienaac_start(struct aac_command *cm) 70890075Sobrien{ 70990075Sobrien struct aac_softc *sc; 71090075Sobrien int error; 71190075Sobrien 71290075Sobrien debug_called(2); 71390075Sobrien 71490075Sobrien sc = cm->cm_sc; 71590075Sobrien 71690075Sobrien /* get the command mapped */ 71790075Sobrien aac_map_command(cm); 71890075Sobrien 71990075Sobrien /* fix up the address values in the FIB */ 72090075Sobrien cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib; 72190075Sobrien cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys; 72290075Sobrien 72390075Sobrien /* save a pointer to the command for speedy reverse-lookup */ 72490075Sobrien cm->cm_fib->Header.SenderData = (u_int32_t)cm; /* XXX 64-bit physical 72590075Sobrien * address issue */ 72690075Sobrien 72790075Sobrien /* put the FIB on the outbound queue */ 72890075Sobrien error = aac_enqueue_fib(sc, cm->cm_queue, cm); 72990075Sobrien return(error); 73090075Sobrien} 73190075Sobrien 73290075Sobrien/* 73390075Sobrien * Handle notification of one or more FIBs coming from the controller. 73490075Sobrien */ 73590075Sobrienstatic void 73690075Sobrienaac_host_command(struct aac_softc *sc) 73790075Sobrien{ 73890075Sobrien struct aac_fib *fib; 73990075Sobrien u_int32_t fib_size; 74090075Sobrien int size; 74190075Sobrien 74290075Sobrien debug_called(2); 74390075Sobrien 74490075Sobrien sc->aifflags |= AAC_AIFFLAGS_RUNNING; 74590075Sobrien 74690075Sobrien while (!(sc->aifflags & AAC_AIFFLAGS_EXIT)) { 74790075Sobrien if (!(sc->aifflags & AAC_AIFFLAGS_PENDING)) 74890075Sobrien tsleep(sc->aifthread, PRIBIO, "aifthd", 15 * hz); 74990075Sobrien 75090075Sobrien sc->aifflags &= ~AAC_AIFFLAGS_PENDING; 75190075Sobrien for (;;) { 75290075Sobrien if (aac_dequeue_fib(sc, AAC_HOST_NORM_CMD_QUEUE, 75390075Sobrien &fib_size, &fib)) 75490075Sobrien break; /* nothing to do */ 75590075Sobrien 75690075Sobrien AAC_PRINT_FIB(sc, fib); 75790075Sobrien 75890075Sobrien switch (fib->Header.Command) { 75990075Sobrien case AifRequest: 76090075Sobrien aac_handle_aif(sc, fib); 76190075Sobrien break; 76290075Sobrien default: 76390075Sobrien device_printf(sc->aac_dev, "unknown command " 76490075Sobrien "from controller\n"); 76590075Sobrien break; 76690075Sobrien } 76790075Sobrien 76890075Sobrien /* Return the AIF to the controller. */ 76990075Sobrien if ((fib->Header.XferState == 0) || 77090075Sobrien (fib->Header.StructType != AAC_FIBTYPE_TFIB)) 77190075Sobrien break; 77290075Sobrien 77390075Sobrien if (fib->Header.XferState & AAC_FIBSTATE_FROMADAP) { 77490075Sobrien fib->Header.XferState |= AAC_FIBSTATE_DONEHOST; 77590075Sobrien *(AAC_FSAStatus*)fib->data = ST_OK; 77690075Sobrien 77790075Sobrien /* XXX Compute the Size field? */ 77890075Sobrien size = fib->Header.Size; 77990075Sobrien if (size > sizeof(struct aac_fib)) { 78090075Sobrien size = sizeof(struct aac_fib); 78190075Sobrien fib->Header.Size = size; 78290075Sobrien } 78390075Sobrien /* 78490075Sobrien * Since we did not generate this command, it 78590075Sobrien * cannot go through the normal 78690075Sobrien * enqueue->startio chain. 78790075Sobrien */ 78890075Sobrien aac_enqueue_response(sc, 78990075Sobrien AAC_ADAP_NORM_RESP_QUEUE, 79090075Sobrien fib); 79190075Sobrien } 79290075Sobrien } 79390075Sobrien } 79490075Sobrien sc->aifflags &= ~AAC_AIFFLAGS_RUNNING; 79590075Sobrien wakeup(sc->aac_dev); 79690075Sobrien 79790075Sobrien#if __FreeBSD_version > 500005 79890075Sobrien mtx_lock(&Giant); 79990075Sobrien#endif 80090075Sobrien kthread_exit(0); 80190075Sobrien} 80290075Sobrien 80390075Sobrien/* 80490075Sobrien * Handle notification of one or more FIBs completed by the controller 80590075Sobrien */ 80690075Sobrienstatic void 80790075Sobrienaac_host_response(struct aac_softc *sc) 80890075Sobrien{ 80990075Sobrien struct aac_command *cm; 81090075Sobrien struct aac_fib *fib; 81190075Sobrien u_int32_t fib_size; 81290075Sobrien 81390075Sobrien debug_called(2); 81490075Sobrien 81590075Sobrien for (;;) { 81690075Sobrien /* look for completed FIBs on our queue */ 81790075Sobrien if (aac_dequeue_fib(sc, AAC_HOST_NORM_RESP_QUEUE, &fib_size, 81890075Sobrien &fib)) 81990075Sobrien break; /* nothing to do */ 82090075Sobrien 82190075Sobrien /* get the command, unmap and queue for later processing */ 82290075Sobrien cm = (struct aac_command *)fib->Header.SenderData; 82390075Sobrien if (cm == NULL) { 82490075Sobrien AAC_PRINT_FIB(sc, fib); 82590075Sobrien } else { 82690075Sobrien aac_remove_busy(cm); 82790075Sobrien aac_unmap_command(cm); /* XXX defer? */ 82890075Sobrien aac_enqueue_complete(cm); 82990075Sobrien } 83090075Sobrien } 83190075Sobrien 83290075Sobrien /* handle completion processing */ 83390075Sobrien#if __FreeBSD_version >= 500005 83490075Sobrien taskqueue_enqueue(taskqueue_swi, &sc->aac_task_complete); 83590075Sobrien#else 83690075Sobrien aac_complete(sc, 0); 83790075Sobrien#endif 83890075Sobrien} 83990075Sobrien 84090075Sobrien/* 84190075Sobrien * Process completed commands. 84290075Sobrien */ 84390075Sobrienstatic void 84490075Sobrienaac_complete(void *context, int pending) 84590075Sobrien{ 84690075Sobrien struct aac_softc *sc; 84790075Sobrien struct aac_command *cm; 84890075Sobrien 84990075Sobrien debug_called(2); 85090075Sobrien 85190075Sobrien sc = (struct aac_softc *)context; 85290075Sobrien 85390075Sobrien /* pull completed commands off the queue */ 85490075Sobrien for (;;) { 85590075Sobrien cm = aac_dequeue_complete(sc); 85690075Sobrien if (cm == NULL) 85790075Sobrien break; 85890075Sobrien cm->cm_flags |= AAC_CMD_COMPLETED; 85990075Sobrien 86090075Sobrien /* is there a completion handler? */ 86190075Sobrien if (cm->cm_complete != NULL) { 86290075Sobrien cm->cm_complete(cm); 86390075Sobrien } else { 86490075Sobrien /* assume that someone is sleeping on this command */ 86590075Sobrien wakeup(cm); 86690075Sobrien } 86790075Sobrien } 86890075Sobrien 86990075Sobrien /* see if we can start some more I/O */ 87090075Sobrien aac_startio(sc); 87190075Sobrien} 87290075Sobrien 87390075Sobrien/* 87490075Sobrien * Handle a bio submitted from a disk device. 87590075Sobrien */ 87690075Sobrienvoid 87790075Sobrienaac_submit_bio(struct bio *bp) 87890075Sobrien{ 87990075Sobrien struct aac_disk *ad; 88090075Sobrien struct aac_softc *sc; 88190075Sobrien 88290075Sobrien debug_called(2); 88390075Sobrien 88490075Sobrien ad = (struct aac_disk *)bp->bio_dev->si_drv1; 88590075Sobrien sc = ad->ad_controller; 88690075Sobrien 88790075Sobrien /* queue the BIO and try to get some work done */ 88890075Sobrien aac_enqueue_bio(sc, bp); 88990075Sobrien aac_startio(sc); 89090075Sobrien} 89190075Sobrien 89290075Sobrien/* 89390075Sobrien * Get a bio and build a command to go with it. 89490075Sobrien */ 89590075Sobrienstatic int 89690075Sobrienaac_bio_command(struct aac_softc *sc, struct aac_command **cmp) 89790075Sobrien{ 89890075Sobrien struct aac_command *cm; 89990075Sobrien struct aac_fib *fib; 90090075Sobrien struct aac_blockread *br; 90190075Sobrien struct aac_blockwrite *bw; 90290075Sobrien struct aac_disk *ad; 90390075Sobrien struct bio *bp; 90490075Sobrien 90590075Sobrien debug_called(2); 90690075Sobrien 90790075Sobrien /* get the resources we will need */ 90890075Sobrien cm = NULL; 90990075Sobrien if ((bp = aac_dequeue_bio(sc)) == NULL) 91090075Sobrien goto fail; 91190075Sobrien if (aac_alloc_command(sc, &cm)) /* get a command */ 91290075Sobrien goto fail; 91390075Sobrien 91490075Sobrien /* fill out the command */ 91590075Sobrien cm->cm_data = (void *)bp->bio_data; 91690075Sobrien cm->cm_datalen = bp->bio_bcount; 91790075Sobrien cm->cm_complete = aac_bio_complete; 91890075Sobrien cm->cm_private = bp; 91990075Sobrien cm->cm_timestamp = time_second; 92090075Sobrien cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 92190075Sobrien 92290075Sobrien /* build the FIB */ 92390075Sobrien fib = cm->cm_fib; 92490075Sobrien fib->Header.XferState = 92590075Sobrien AAC_FIBSTATE_HOSTOWNED | 92690075Sobrien AAC_FIBSTATE_INITIALISED | 92790075Sobrien AAC_FIBSTATE_FROMHOST | 92890075Sobrien AAC_FIBSTATE_REXPECTED | 92990075Sobrien AAC_FIBSTATE_NORM; 93090075Sobrien fib->Header.Command = ContainerCommand; 93190075Sobrien fib->Header.Size = sizeof(struct aac_fib_header); 93290075Sobrien 93390075Sobrien /* build the read/write request */ 93490075Sobrien ad = (struct aac_disk *)bp->bio_dev->si_drv1; 93590075Sobrien if (BIO_IS_READ(bp)) { 93690075Sobrien br = (struct aac_blockread *)&fib->data[0]; 93790075Sobrien br->Command = VM_CtBlockRead; 93890075Sobrien br->ContainerId = ad->ad_container->co_mntobj.ObjectId; 93990075Sobrien br->BlockNumber = bp->bio_pblkno; 94090075Sobrien br->ByteCount = bp->bio_bcount; 94190075Sobrien fib->Header.Size += sizeof(struct aac_blockread); 94290075Sobrien cm->cm_sgtable = &br->SgMap; 94390075Sobrien cm->cm_flags |= AAC_CMD_DATAIN; 94490075Sobrien } else { 94590075Sobrien bw = (struct aac_blockwrite *)&fib->data[0]; 94690075Sobrien bw->Command = VM_CtBlockWrite; 94790075Sobrien bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 94890075Sobrien bw->BlockNumber = bp->bio_pblkno; 94990075Sobrien bw->ByteCount = bp->bio_bcount; 95090075Sobrien bw->Stable = CUNSTABLE; /* XXX what's appropriate here? */ 95190075Sobrien fib->Header.Size += sizeof(struct aac_blockwrite); 95290075Sobrien cm->cm_flags |= AAC_CMD_DATAOUT; 95390075Sobrien cm->cm_sgtable = &bw->SgMap; 95490075Sobrien } 95590075Sobrien 95690075Sobrien *cmp = cm; 95790075Sobrien return(0); 95890075Sobrien 95990075Sobrienfail: 96090075Sobrien if (bp != NULL) 96190075Sobrien aac_enqueue_bio(sc, bp); 96290075Sobrien if (cm != NULL) 96390075Sobrien aac_release_command(cm); 96490075Sobrien return(ENOMEM); 96590075Sobrien} 96690075Sobrien 96790075Sobrien/* 96890075Sobrien * Handle a bio-instigated command that has been completed. 96990075Sobrien */ 97090075Sobrienstatic void 97190075Sobrienaac_bio_complete(struct aac_command *cm) 97290075Sobrien{ 97390075Sobrien struct aac_blockread_response *brr; 97490075Sobrien struct aac_blockwrite_response *bwr; 97590075Sobrien struct bio *bp; 97690075Sobrien AAC_FSAStatus status; 97790075Sobrien 97890075Sobrien /* fetch relevant status and then release the command */ 97990075Sobrien bp = (struct bio *)cm->cm_private; 98090075Sobrien if (BIO_IS_READ(bp)) { 98190075Sobrien brr = (struct aac_blockread_response *)&cm->cm_fib->data[0]; 98290075Sobrien status = brr->Status; 98390075Sobrien } else { 98490075Sobrien bwr = (struct aac_blockwrite_response *)&cm->cm_fib->data[0]; 98590075Sobrien status = bwr->Status; 98690075Sobrien } 98790075Sobrien aac_release_command(cm); 98890075Sobrien 98990075Sobrien /* fix up the bio based on status */ 99090075Sobrien if (status == ST_OK) { 99190075Sobrien bp->bio_resid = 0; 99290075Sobrien } else { 99390075Sobrien bp->bio_error = EIO; 99490075Sobrien bp->bio_flags |= BIO_ERROR; 99590075Sobrien /* pass an error string out to the disk layer */ 99690075Sobrien bp->bio_driver1 = aac_describe_code(aac_command_status_table, 99790075Sobrien status); 99890075Sobrien } 99990075Sobrien aac_biodone(bp); 100090075Sobrien} 100190075Sobrien 100290075Sobrien/* 100390075Sobrien * Dump a block of data to the controller. If the queue is full, tell the 100490075Sobrien * caller to hold off and wait for the queue to drain. 100590075Sobrien */ 100690075Sobrienint 100790075Sobrienaac_dump_enqueue(struct aac_disk *ad, u_int32_t lba, void *data, int dumppages) 100890075Sobrien{ 100990075Sobrien struct aac_softc *sc; 101090075Sobrien struct aac_command *cm; 101190075Sobrien struct aac_fib *fib; 101290075Sobrien struct aac_blockwrite *bw; 101390075Sobrien 101490075Sobrien sc = ad->ad_controller; 101590075Sobrien cm = NULL; 101690075Sobrien 101790075Sobrien if (aac_alloc_command(sc, &cm)) 101890075Sobrien return (EBUSY); 101990075Sobrien 102090075Sobrien /* fill out the command */ 102190075Sobrien cm->cm_data = data; 102290075Sobrien cm->cm_datalen = dumppages * PAGE_SIZE; 102390075Sobrien cm->cm_complete = NULL; 102490075Sobrien cm->cm_private = NULL; 102590075Sobrien cm->cm_timestamp = time_second; 102690075Sobrien cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 102790075Sobrien 102890075Sobrien /* build the FIB */ 102990075Sobrien fib = cm->cm_fib; 103090075Sobrien fib->Header.XferState = 103190075Sobrien AAC_FIBSTATE_HOSTOWNED | 103290075Sobrien AAC_FIBSTATE_INITIALISED | 103390075Sobrien AAC_FIBSTATE_FROMHOST | 103490075Sobrien AAC_FIBSTATE_REXPECTED | 103590075Sobrien AAC_FIBSTATE_NORM; 103690075Sobrien fib->Header.Command = ContainerCommand; 103790075Sobrien fib->Header.Size = sizeof(struct aac_fib_header); 103890075Sobrien 103990075Sobrien bw = (struct aac_blockwrite *)&fib->data[0]; 104090075Sobrien bw->Command = VM_CtBlockWrite; 104190075Sobrien bw->ContainerId = ad->ad_container->co_mntobj.ObjectId; 104290075Sobrien bw->BlockNumber = lba; 104390075Sobrien bw->ByteCount = dumppages * PAGE_SIZE; 104490075Sobrien bw->Stable = CUNSTABLE; /* XXX what's appropriate here? */ 104590075Sobrien fib->Header.Size += sizeof(struct aac_blockwrite); 104690075Sobrien cm->cm_flags |= AAC_CMD_DATAOUT; 104790075Sobrien cm->cm_sgtable = &bw->SgMap; 104890075Sobrien 104990075Sobrien return (aac_start(cm)); 105090075Sobrien} 105190075Sobrien 105290075Sobrien/* 105390075Sobrien * Wait for the card's queue to drain when dumping. Also check for monitor 105490075Sobrien * printf's 105590075Sobrien */ 105690075Sobrienvoid 105790075Sobrienaac_dump_complete(struct aac_softc *sc) 105890075Sobrien{ 105990075Sobrien struct aac_fib *fib; 106090075Sobrien struct aac_command *cm; 106190075Sobrien u_int16_t reason; 106290075Sobrien u_int32_t pi, ci, fib_size; 106390075Sobrien 106490075Sobrien do { 106590075Sobrien reason = AAC_GET_ISTATUS(sc); 106690075Sobrien if (reason & AAC_DB_RESPONSE_READY) { 106790075Sobrien AAC_CLEAR_ISTATUS(sc, AAC_DB_RESPONSE_READY); 106890075Sobrien for (;;) { 106990075Sobrien if (aac_dequeue_fib(sc, 107090075Sobrien AAC_HOST_NORM_RESP_QUEUE, 107190075Sobrien &fib_size, &fib)) 107290075Sobrien break; 107390075Sobrien cm = (struct aac_command *) 107490075Sobrien fib->Header.SenderData; 107590075Sobrien if (cm == NULL) 107690075Sobrien AAC_PRINT_FIB(sc, fib); 107790075Sobrien else { 107890075Sobrien aac_remove_busy(cm); 107990075Sobrien aac_unmap_command(cm); 108090075Sobrien aac_enqueue_complete(cm); 108190075Sobrien aac_release_command(cm); 108290075Sobrien } 108390075Sobrien } 108490075Sobrien } 108590075Sobrien if (reason & AAC_DB_PRINTF) { 108690075Sobrien AAC_CLEAR_ISTATUS(sc, AAC_DB_PRINTF); 108790075Sobrien aac_print_printf(sc); 108890075Sobrien } 108990075Sobrien pi = sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][ 109090075Sobrien AAC_PRODUCER_INDEX]; 109190075Sobrien ci = sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][ 109290075Sobrien AAC_CONSUMER_INDEX]; 109390075Sobrien } while (ci != pi); 109490075Sobrien 109590075Sobrien return; 109690075Sobrien} 109790075Sobrien 109890075Sobrien/* 109990075Sobrien * Submit a command to the controller, return when it completes. 110090075Sobrien * XXX This is very dangerous! If the card has gone out to lunch, we could 110190075Sobrien * be stuck here forever. At the same time, signals are not caught 110290075Sobrien * because there is a risk that a signal could wakeup the tsleep before 110390075Sobrien * the card has a chance to complete the command. The passed in timeout 110490075Sobrien * is ignored for the same reason. Since there is no way to cancel a 110590075Sobrien * command in progress, we should probably create a 'dead' queue where 110690075Sobrien * commands go that have been interrupted/timed-out/etc, that keeps them 110790075Sobrien * out of the free pool. That way, if the card is just slow, it won't 110890075Sobrien * spam the memory of a command that has been recycled. 110990075Sobrien */ 111090075Sobrienstatic int 111190075Sobrienaac_wait_command(struct aac_command *cm, int timeout) 111290075Sobrien{ 111390075Sobrien int s, error = 0; 111490075Sobrien 111590075Sobrien debug_called(2); 111690075Sobrien 111790075Sobrien /* Put the command on the ready queue and get things going */ 111890075Sobrien cm->cm_queue = AAC_ADAP_NORM_CMD_QUEUE; 111990075Sobrien aac_enqueue_ready(cm); 112090075Sobrien aac_startio(cm->cm_sc); 112190075Sobrien s = splbio(); 112290075Sobrien while (!(cm->cm_flags & AAC_CMD_COMPLETED) && (error != EWOULDBLOCK)) { 112390075Sobrien error = tsleep(cm, PRIBIO, "aacwait", 0); 112490075Sobrien } 112590075Sobrien splx(s); 112690075Sobrien return(error); 112790075Sobrien} 112890075Sobrien 112990075Sobrien/* 113090075Sobrien *Command Buffer Management 113190075Sobrien */ 113290075Sobrien 113390075Sobrien/* 113490075Sobrien * Allocate a command. 113590075Sobrien */ 113690075Sobrienstatic int 113790075Sobrienaac_alloc_command(struct aac_softc *sc, struct aac_command **cmp) 113890075Sobrien{ 113990075Sobrien struct aac_command *cm; 114090075Sobrien 114190075Sobrien debug_called(3); 114290075Sobrien 114390075Sobrien if ((cm = aac_dequeue_free(sc)) == NULL) 114490075Sobrien return(ENOMEM); 114590075Sobrien 114690075Sobrien *cmp = cm; 114790075Sobrien return(0); 114890075Sobrien} 114990075Sobrien 115090075Sobrien/* 115190075Sobrien * Release a command back to the freelist. 115290075Sobrien */ 115390075Sobrienstatic void 115490075Sobrienaac_release_command(struct aac_command *cm) 115590075Sobrien{ 115690075Sobrien debug_called(3); 115790075Sobrien 115890075Sobrien /* (re)initialise the command/FIB */ 115990075Sobrien cm->cm_sgtable = NULL; 116090075Sobrien cm->cm_flags = 0; 116190075Sobrien cm->cm_complete = NULL; 116290075Sobrien cm->cm_private = NULL; 116390075Sobrien cm->cm_fib->Header.XferState = AAC_FIBSTATE_EMPTY; 116490075Sobrien cm->cm_fib->Header.StructType = AAC_FIBTYPE_TFIB; 116590075Sobrien cm->cm_fib->Header.Flags = 0; 116690075Sobrien cm->cm_fib->Header.SenderSize = sizeof(struct aac_fib); 116790075Sobrien 116890075Sobrien /* 116990075Sobrien * These are duplicated in aac_start to cover the case where an 117090075Sobrien * intermediate stage may have destroyed them. They're left 117190075Sobrien * initialised here for debugging purposes only. 117290075Sobrien */ 117390075Sobrien cm->cm_fib->Header.SenderFibAddress = (u_int32_t)cm->cm_fib; 117490075Sobrien cm->cm_fib->Header.ReceiverFibAddress = cm->cm_fibphys; 117590075Sobrien 117690075Sobrien aac_enqueue_free(cm); 117790075Sobrien} 117890075Sobrien 117990075Sobrien/* 118090075Sobrien * Map helper for command/FIB allocation. 118190075Sobrien */ 118290075Sobrienstatic void 118390075Sobrienaac_map_command_helper(void *arg, bus_dma_segment_t *segs, int nseg, int error) 118490075Sobrien{ 118590075Sobrien struct aac_softc *sc; 118690075Sobrien 118790075Sobrien sc = (struct aac_softc *)arg; 118890075Sobrien 118990075Sobrien debug_called(3); 119090075Sobrien 119190075Sobrien sc->aac_fibphys = segs[0].ds_addr; 119290075Sobrien} 119390075Sobrien 119490075Sobrien/* 119590075Sobrien * Allocate and initialise commands/FIBs for this adapter. 119690075Sobrien */ 119790075Sobrienstatic int 119890075Sobrienaac_alloc_commands(struct aac_softc *sc) 119990075Sobrien{ 120090075Sobrien struct aac_command *cm; 120190075Sobrien int i; 120290075Sobrien 120390075Sobrien debug_called(1); 120490075Sobrien 120590075Sobrien /* allocate the FIBs in DMAable memory and load them */ 120690075Sobrien if (bus_dmamem_alloc(sc->aac_fib_dmat, (void **)&sc->aac_fibs, 120790075Sobrien BUS_DMA_NOWAIT, &sc->aac_fibmap)) { 120890075Sobrien return(ENOMEM); 120990075Sobrien } 121090075Sobrien bus_dmamap_load(sc->aac_fib_dmat, sc->aac_fibmap, sc->aac_fibs, 121190075Sobrien AAC_FIB_COUNT * sizeof(struct aac_fib), 121290075Sobrien aac_map_command_helper, sc, 0); 121390075Sobrien 121490075Sobrien /* initialise constant fields in the command structure */ 121590075Sobrien for (i = 0; i < AAC_FIB_COUNT; i++) { 121690075Sobrien cm = &sc->aac_command[i]; 121790075Sobrien cm->cm_sc = sc; 121890075Sobrien cm->cm_fib = sc->aac_fibs + i; 121990075Sobrien cm->cm_fibphys = sc->aac_fibphys + (i * sizeof(struct aac_fib)); 122090075Sobrien 122190075Sobrien if (!bus_dmamap_create(sc->aac_buffer_dmat, 0, &cm->cm_datamap)) 122290075Sobrien aac_release_command(cm); 122390075Sobrien } 122490075Sobrien return(0); 122590075Sobrien} 122690075Sobrien 122790075Sobrien/* 122890075Sobrien * Free FIBs owned by this adapter. 122990075Sobrien */ 123090075Sobrienstatic void 123190075Sobrienaac_free_commands(struct aac_softc *sc) 123290075Sobrien{ 123390075Sobrien int i; 123490075Sobrien 123590075Sobrien debug_called(1); 123690075Sobrien 123790075Sobrien for (i = 0; i < AAC_FIB_COUNT; i++) 123890075Sobrien bus_dmamap_destroy(sc->aac_buffer_dmat, 123990075Sobrien sc->aac_command[i].cm_datamap); 124090075Sobrien 124190075Sobrien bus_dmamap_unload(sc->aac_fib_dmat, sc->aac_fibmap); 124290075Sobrien bus_dmamem_free(sc->aac_fib_dmat, sc->aac_fibs, sc->aac_fibmap); 124390075Sobrien} 124490075Sobrien 124590075Sobrien/* 124690075Sobrien * Command-mapping helper function - populate this command's s/g table. 124790075Sobrien */ 124890075Sobrienstatic void 124990075Sobrienaac_map_command_sg(void *arg, bus_dma_segment_t *segs, int nseg, int error) 125090075Sobrien{ 125190075Sobrien struct aac_command *cm; 125290075Sobrien struct aac_fib *fib; 125390075Sobrien struct aac_sg_table *sg; 125490075Sobrien int i; 125590075Sobrien 125690075Sobrien debug_called(3); 125790075Sobrien 125890075Sobrien cm = (struct aac_command *)arg; 125990075Sobrien fib = cm->cm_fib; 126090075Sobrien 126190075Sobrien /* find the s/g table */ 126290075Sobrien sg = cm->cm_sgtable; 126390075Sobrien 126490075Sobrien /* copy into the FIB */ 126590075Sobrien if (sg != NULL) { 126690075Sobrien sg->SgCount = nseg; 126790075Sobrien for (i = 0; i < nseg; i++) { 126890075Sobrien sg->SgEntry[i].SgAddress = segs[i].ds_addr; 126990075Sobrien sg->SgEntry[i].SgByteCount = segs[i].ds_len; 127090075Sobrien } 127190075Sobrien /* update the FIB size for the s/g count */ 127290075Sobrien fib->Header.Size += nseg * sizeof(struct aac_sg_entry); 127390075Sobrien } 127490075Sobrien 127590075Sobrien} 127690075Sobrien 127790075Sobrien/* 127890075Sobrien * Map a command into controller-visible space. 127990075Sobrien */ 128090075Sobrienstatic void 128190075Sobrienaac_map_command(struct aac_command *cm) 128290075Sobrien{ 128390075Sobrien struct aac_softc *sc; 128490075Sobrien 128590075Sobrien debug_called(2); 128690075Sobrien 128790075Sobrien sc = cm->cm_sc; 128890075Sobrien 128990075Sobrien /* don't map more than once */ 129090075Sobrien if (cm->cm_flags & AAC_CMD_MAPPED) 129190075Sobrien return; 129290075Sobrien 129390075Sobrien if (cm->cm_datalen != 0) { 129490075Sobrien bus_dmamap_load(sc->aac_buffer_dmat, cm->cm_datamap, 129590075Sobrien cm->cm_data, cm->cm_datalen, 129690075Sobrien aac_map_command_sg, cm, 0); 129790075Sobrien 129890075Sobrien if (cm->cm_flags & AAC_CMD_DATAIN) 129990075Sobrien bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 130090075Sobrien BUS_DMASYNC_PREREAD); 130190075Sobrien if (cm->cm_flags & AAC_CMD_DATAOUT) 130290075Sobrien bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 130390075Sobrien BUS_DMASYNC_PREWRITE); 130490075Sobrien } 130590075Sobrien cm->cm_flags |= AAC_CMD_MAPPED; 130690075Sobrien} 130790075Sobrien 130890075Sobrien/* 130990075Sobrien * Unmap a command from controller-visible space. 131090075Sobrien */ 131152284Sobrienstatic void 131252284Sobrienaac_unmap_command(struct aac_command *cm) 131352284Sobrien{ 131452284Sobrien struct aac_softc *sc; 131590075Sobrien 131690075Sobrien debug_called(2); 131790075Sobrien 131890075Sobrien sc = cm->cm_sc; 131990075Sobrien 132090075Sobrien if (!(cm->cm_flags & AAC_CMD_MAPPED)) 132190075Sobrien return; 132252284Sobrien 132390075Sobrien if (cm->cm_datalen != 0) { 132452284Sobrien if (cm->cm_flags & AAC_CMD_DATAIN) 132590075Sobrien bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 132690075Sobrien BUS_DMASYNC_POSTREAD); 132790075Sobrien if (cm->cm_flags & AAC_CMD_DATAOUT) 132890075Sobrien bus_dmamap_sync(sc->aac_buffer_dmat, cm->cm_datamap, 132990075Sobrien BUS_DMASYNC_POSTWRITE); 133090075Sobrien 133190075Sobrien bus_dmamap_unload(sc->aac_buffer_dmat, cm->cm_datamap); 133290075Sobrien } 133390075Sobrien cm->cm_flags &= ~AAC_CMD_MAPPED; 133490075Sobrien} 133590075Sobrien 133690075Sobrien/* 133790075Sobrien * Hardware Interface 133890075Sobrien */ 133990075Sobrien 134090075Sobrien/* 134190075Sobrien * Initialise the adapter. 134290075Sobrien */ 134390075Sobrienstatic void 134490075Sobrienaac_common_map(void *arg, bus_dma_segment_t *segs, int nseg, int error) 134590075Sobrien{ 134690075Sobrien struct aac_softc *sc; 134790075Sobrien 134890075Sobrien debug_called(1); 134990075Sobrien 135090075Sobrien sc = (struct aac_softc *)arg; 135190075Sobrien 135290075Sobrien sc->aac_common_busaddr = segs[0].ds_addr; 135390075Sobrien} 135452284Sobrien 135552284Sobrien/* 135652284Sobrien * Retrieve the firmware version numbers. Dell PERC2/QC cards with 135752284Sobrien * firmware version 1.x are not compatible with this driver. 135852284Sobrien */ 135952284Sobrienstatic int 136052284Sobrienaac_check_firmware(struct aac_softc *sc) 136152284Sobrien{ 136290075Sobrien u_int32_t major, minor; 136352284Sobrien 136490075Sobrien debug_called(1); 136590075Sobrien 136690075Sobrien if (sc->quirks & AAC_QUIRK_PERC2QC) { 136752284Sobrien if (aac_sync_command(sc, AAC_MONKER_GETKERNVER, 0, 0, 0, 0, 136852284Sobrien NULL)) { 136952284Sobrien device_printf(sc->aac_dev, 137090075Sobrien "Error reading firmware version\n"); 137190075Sobrien return (EIO); 137290075Sobrien } 137352284Sobrien 137452284Sobrien /* These numbers are stored as ASCII! */ 137552284Sobrien major = (AAC_GETREG4(sc, AAC_SA_MAILBOX + 4) & 0xff) - 0x30; 137652284Sobrien minor = (AAC_GETREG4(sc, AAC_SA_MAILBOX + 8) & 0xff) - 0x30; 137752284Sobrien if (major == 1) { 137852284Sobrien device_printf(sc->aac_dev, 137952284Sobrien "Firmware version %d.%d is not supported.\n", 138052284Sobrien major, minor); 138152284Sobrien return (EINVAL); 138252284Sobrien } 138390075Sobrien } 138490075Sobrien 138552284Sobrien return (0); 138652284Sobrien} 138790075Sobrien 138890075Sobrienstatic int 138990075Sobrienaac_init(struct aac_softc *sc) 139090075Sobrien{ 139190075Sobrien struct aac_adapter_init *ip; 139252284Sobrien time_t then; 139390075Sobrien u_int32_t code; 139490075Sobrien u_int8_t *qaddr; 139590075Sobrien 139690075Sobrien debug_called(1); 139790075Sobrien 139890075Sobrien /* 139990075Sobrien * First wait for the adapter to come ready. 140090075Sobrien */ 140190075Sobrien then = time_second; 140252284Sobrien do { 140390075Sobrien code = AAC_GET_FWSTATUS(sc); 140490075Sobrien if (code & AAC_SELF_TEST_FAILED) { 140590075Sobrien device_printf(sc->aac_dev, "FATAL: selftest failed\n"); 140690075Sobrien return(ENXIO); 140790075Sobrien } 140890075Sobrien if (code & AAC_KERNEL_PANIC) { 140990075Sobrien device_printf(sc->aac_dev, 141090075Sobrien "FATAL: controller kernel panic\n"); 141190075Sobrien return(ENXIO); 141290075Sobrien } 141390075Sobrien if (time_second > (then + AAC_BOOT_TIMEOUT)) { 141490075Sobrien device_printf(sc->aac_dev, 141552284Sobrien "FATAL: controller not coming ready, " 141652284Sobrien "status %x\n", code); 141790075Sobrien return(ENXIO); 141890075Sobrien } 141990075Sobrien } while (!(code & AAC_UP_AND_RUNNING)); 142090075Sobrien 142190075Sobrien /* 142290075Sobrien * Create DMA tag for the common structure and allocate it. 142390075Sobrien */ 142490075Sobrien if (bus_dma_tag_create(sc->aac_parent_dmat, /* parent */ 142590075Sobrien 1, 0, /* algnmnt, boundary */ 142652284Sobrien BUS_SPACE_MAXADDR, /* lowaddr */ 142790075Sobrien BUS_SPACE_MAXADDR, /* highaddr */ 142890075Sobrien NULL, NULL, /* filter, filterarg */ 142990075Sobrien sizeof(struct aac_common), /* maxsize */ 143090075Sobrien 1, /* nsegments */ 143190075Sobrien BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 143290075Sobrien 0, /* flags */ 143352284Sobrien &sc->aac_common_dmat)) { 143490075Sobrien device_printf(sc->aac_dev, 143590075Sobrien "can't allocate common structure DMA tag\n"); 143690075Sobrien return(ENOMEM); 143790075Sobrien } 143852284Sobrien if (bus_dmamem_alloc(sc->aac_common_dmat, (void **)&sc->aac_common, 143990075Sobrien BUS_DMA_NOWAIT, &sc->aac_common_dmamap)) { 144090075Sobrien device_printf(sc->aac_dev, "can't allocate common structure\n"); 144190075Sobrien return(ENOMEM); 144290075Sobrien } 144390075Sobrien bus_dmamap_load(sc->aac_common_dmat, sc->aac_common_dmamap, 144490075Sobrien sc->aac_common, sizeof(*sc->aac_common), aac_common_map, 144590075Sobrien sc, 0); 144690075Sobrien bzero(sc->aac_common, sizeof(*sc->aac_common)); 144790075Sobrien 144890075Sobrien /* 144990075Sobrien * Fill in the init structure. This tells the adapter about the 145090075Sobrien * physical location of various important shared data structures. 145190075Sobrien */ 145252284Sobrien ip = &sc->aac_common->ac_init; 145390075Sobrien ip->InitStructRevision = AAC_INIT_STRUCT_REVISION; 145452284Sobrien 145552284Sobrien ip->AdapterFibsPhysicalAddress = sc->aac_common_busaddr + 145652284Sobrien offsetof(struct aac_common, ac_fibs); 145752284Sobrien ip->AdapterFibsVirtualAddress = &sc->aac_common->ac_fibs[0]; 145852284Sobrien ip->AdapterFibsSize = AAC_ADAPTER_FIBS * sizeof(struct aac_fib); 145952284Sobrien ip->AdapterFibAlign = sizeof(struct aac_fib); 146052284Sobrien 146152284Sobrien ip->PrintfBufferAddress = sc->aac_common_busaddr + 146252284Sobrien offsetof(struct aac_common, ac_printf); 146390075Sobrien ip->PrintfBufferSize = AAC_PRINTF_BUFSIZE; 146452284Sobrien 146552284Sobrien ip->HostPhysMemPages = 0; /* not used? */ 146690075Sobrien ip->HostElapsedSeconds = time_second; /* reset later if invalid */ 146752284Sobrien 146890075Sobrien /* 146952284Sobrien * Initialise FIB queues. Note that it appears that the layout of the 147052284Sobrien * indexes and the segmentation of the entries may be mandated by the 147190075Sobrien * adapter, which is only told about the base of the queue index fields. 147290075Sobrien * 147390075Sobrien * The initial values of the indices are assumed to inform the adapter 147452284Sobrien * of the sizes of the respective queues, and theoretically it could 147552284Sobrien * work out the entire layout of the queue structures from this. We 147690075Sobrien * take the easy route and just lay this area out like everyone else 147790075Sobrien * does. 147890075Sobrien * 147990075Sobrien * The Linux driver uses a much more complex scheme whereby several 148090075Sobrien * header records are kept for each queue. We use a couple of generic 148190075Sobrien * list manipulation functions which 'know' the size of each list by 148290075Sobrien * virtue of a table. 148390075Sobrien */ 148490075Sobrien qaddr = &sc->aac_common->ac_qbuf[0] + AAC_QUEUE_ALIGN; 148590075Sobrien qaddr -= (u_int32_t)qaddr % AAC_QUEUE_ALIGN; 148690075Sobrien sc->aac_queues = (struct aac_queue_table *)qaddr; 148790075Sobrien ip->CommHeaderAddress = sc->aac_common_busaddr + 148890075Sobrien ((u_int32_t)sc->aac_queues - 148990075Sobrien (u_int32_t)sc->aac_common); 149090075Sobrien bzero(sc->aac_queues, sizeof(struct aac_queue_table)); 149152284Sobrien 149252284Sobrien sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 149352284Sobrien AAC_HOST_NORM_CMD_ENTRIES; 149452284Sobrien sc->aac_queues->qt_qindex[AAC_HOST_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 149590075Sobrien AAC_HOST_NORM_CMD_ENTRIES; 149652284Sobrien sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 149752284Sobrien AAC_HOST_HIGH_CMD_ENTRIES; 149852284Sobrien sc->aac_queues->qt_qindex[AAC_HOST_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 149952284Sobrien AAC_HOST_HIGH_CMD_ENTRIES; 150052284Sobrien sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_PRODUCER_INDEX] = 150152284Sobrien AAC_ADAP_NORM_CMD_ENTRIES; 150252284Sobrien sc->aac_queues->qt_qindex[AAC_ADAP_NORM_CMD_QUEUE][AAC_CONSUMER_INDEX] = 150352284Sobrien AAC_ADAP_NORM_CMD_ENTRIES; 150490075Sobrien sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_PRODUCER_INDEX] = 150552284Sobrien AAC_ADAP_HIGH_CMD_ENTRIES; 150652284Sobrien sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_CMD_QUEUE][AAC_CONSUMER_INDEX] = 150752284Sobrien AAC_ADAP_HIGH_CMD_ENTRIES; 150890075Sobrien sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 150990075Sobrien AAC_HOST_NORM_RESP_ENTRIES; 151090075Sobrien sc->aac_queues->qt_qindex[AAC_HOST_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 151190075Sobrien AAC_HOST_NORM_RESP_ENTRIES; 151290075Sobrien sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 151390075Sobrien AAC_HOST_HIGH_RESP_ENTRIES; 151490075Sobrien sc->aac_queues->qt_qindex[AAC_HOST_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 151590075Sobrien AAC_HOST_HIGH_RESP_ENTRIES; 151690075Sobrien sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_PRODUCER_INDEX]= 151790075Sobrien AAC_ADAP_NORM_RESP_ENTRIES; 151890075Sobrien sc->aac_queues->qt_qindex[AAC_ADAP_NORM_RESP_QUEUE][AAC_CONSUMER_INDEX]= 151990075Sobrien AAC_ADAP_NORM_RESP_ENTRIES; 152090075Sobrien sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_PRODUCER_INDEX]= 152190075Sobrien AAC_ADAP_HIGH_RESP_ENTRIES; 152290075Sobrien sc->aac_queues->qt_qindex[AAC_ADAP_HIGH_RESP_QUEUE][AAC_CONSUMER_INDEX]= 152390075Sobrien AAC_ADAP_HIGH_RESP_ENTRIES; 152490075Sobrien sc->aac_qentries[AAC_HOST_NORM_CMD_QUEUE] = 152590075Sobrien &sc->aac_queues->qt_HostNormCmdQueue[0]; 152690075Sobrien sc->aac_qentries[AAC_HOST_HIGH_CMD_QUEUE] = 152790075Sobrien &sc->aac_queues->qt_HostHighCmdQueue[0]; 152890075Sobrien sc->aac_qentries[AAC_ADAP_NORM_CMD_QUEUE] = 152990075Sobrien &sc->aac_queues->qt_AdapNormCmdQueue[0]; 153090075Sobrien sc->aac_qentries[AAC_ADAP_HIGH_CMD_QUEUE] = 153190075Sobrien &sc->aac_queues->qt_AdapHighCmdQueue[0]; 153290075Sobrien sc->aac_qentries[AAC_HOST_NORM_RESP_QUEUE] = 153390075Sobrien &sc->aac_queues->qt_HostNormRespQueue[0]; 153490075Sobrien sc->aac_qentries[AAC_HOST_HIGH_RESP_QUEUE] = 153590075Sobrien &sc->aac_queues->qt_HostHighRespQueue[0]; 153690075Sobrien sc->aac_qentries[AAC_ADAP_NORM_RESP_QUEUE] = 153752284Sobrien &sc->aac_queues->qt_AdapNormRespQueue[0]; 153852284Sobrien sc->aac_qentries[AAC_ADAP_HIGH_RESP_QUEUE] = 153990075Sobrien &sc->aac_queues->qt_AdapHighRespQueue[0]; 154090075Sobrien 154152284Sobrien /* 154290075Sobrien * Do controller-type-specific initialisation 154352284Sobrien */ 154452284Sobrien switch (sc->aac_hwif) { 154590075Sobrien case AAC_HWIF_I960RX: 154690075Sobrien AAC_SETREG4(sc, AAC_RX_ODBR, ~0); 154790075Sobrien break; 154890075Sobrien } 154990075Sobrien 155090075Sobrien /* 155190075Sobrien * Give the init structure to the controller. 155290075Sobrien */ 155390075Sobrien if (aac_sync_command(sc, AAC_MONKER_INITSTRUCT, 155490075Sobrien sc->aac_common_busaddr + 155590075Sobrien offsetof(struct aac_common, ac_init), 0, 0, 0, 155690075Sobrien NULL)) { 155790075Sobrien device_printf(sc->aac_dev, 155890075Sobrien "error establishing init structure\n"); 155990075Sobrien return(EIO); 156090075Sobrien } 156190075Sobrien 156290075Sobrien return(0); 156390075Sobrien} 156490075Sobrien 156590075Sobrien/* 156690075Sobrien * Send a synchronous command to the controller and wait for a result. 156790075Sobrien */ 156890075Sobrienstatic int 156990075Sobrienaac_sync_command(struct aac_softc *sc, u_int32_t command, 157090075Sobrien u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3, 157190075Sobrien u_int32_t *sp) 157290075Sobrien{ 157390075Sobrien time_t then; 157490075Sobrien u_int32_t status; 157552284Sobrien 157690075Sobrien debug_called(3); 157790075Sobrien 157852284Sobrien /* populate the mailbox */ 157990075Sobrien AAC_SET_MAILBOX(sc, command, arg0, arg1, arg2, arg3); 158052284Sobrien 158152284Sobrien /* ensure the sync command doorbell flag is cleared */ 158252284Sobrien AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 158390075Sobrien 158452284Sobrien /* then set it to signal the adapter */ 158552284Sobrien AAC_QNOTIFY(sc, AAC_DB_SYNC_COMMAND); 158652284Sobrien 158790075Sobrien /* spin waiting for the command to complete */ 158890075Sobrien then = time_second; 158990075Sobrien do { 159090075Sobrien if (time_second > (then + AAC_IMMEDIATE_TIMEOUT)) { 159190075Sobrien debug(2, "timed out"); 159290075Sobrien return(EIO); 159390075Sobrien } 159490075Sobrien } while (!(AAC_GET_ISTATUS(sc) & AAC_DB_SYNC_COMMAND)); 159590075Sobrien 159690075Sobrien /* clear the completion flag */ 159790075Sobrien AAC_CLEAR_ISTATUS(sc, AAC_DB_SYNC_COMMAND); 159890075Sobrien 159990075Sobrien /* get the command status */ 160090075Sobrien status = AAC_GET_MAILBOXSTATUS(sc); 160190075Sobrien if (sp != NULL) 160290075Sobrien *sp = status; 160390075Sobrien return(0); 160490075Sobrien} 160590075Sobrien 160690075Sobrien/* 160790075Sobrien * Send a synchronous FIB to the controller and wait for a result. 160890075Sobrien */ 160952284Sobrienstatic int 161052284Sobrienaac_sync_fib(struct aac_softc *sc, u_int32_t command, u_int32_t xferstate, 161190075Sobrien void *data, u_int16_t datasize, 161290075Sobrien void *result, u_int16_t *resultsize) 161352284Sobrien{ 161452284Sobrien struct aac_fib *fib; 161590075Sobrien 161652284Sobrien debug_called(3); 161752284Sobrien 161852284Sobrien fib = &sc->aac_common->ac_sync_fib; 161952284Sobrien 162052284Sobrien if (datasize > AAC_FIB_DATASIZE) 162152284Sobrien return(EINVAL); 162252284Sobrien 162352284Sobrien /* 162490075Sobrien * Set up the sync FIB 162590075Sobrien */ 162690075Sobrien fib->Header.XferState = AAC_FIBSTATE_HOSTOWNED | 162752284Sobrien AAC_FIBSTATE_INITIALISED | 162890075Sobrien AAC_FIBSTATE_EMPTY; 162990075Sobrien fib->Header.XferState |= xferstate; 163090075Sobrien fib->Header.Command = command; 163190075Sobrien fib->Header.StructType = AAC_FIBTYPE_TFIB; 163290075Sobrien fib->Header.Size = sizeof(struct aac_fib) + datasize; 163352284Sobrien fib->Header.SenderSize = sizeof(struct aac_fib); 163490075Sobrien fib->Header.SenderFibAddress = (u_int32_t)fib; 163590075Sobrien fib->Header.ReceiverFibAddress = sc->aac_common_busaddr + 163652284Sobrien offsetof(struct aac_common, 163790075Sobrien ac_sync_fib); 163852284Sobrien 163990075Sobrien /* 164090075Sobrien * Copy in data. 164190075Sobrien */ 164290075Sobrien if (data != NULL) { 164390075Sobrien KASSERT(datasize <= sizeof(fib->data), 164490075Sobrien ("aac_sync_fib: datasize to large")); 164590075Sobrien bcopy(data, fib->data, datasize); 164690075Sobrien fib->Header.XferState |= AAC_FIBSTATE_FROMHOST | 164790075Sobrien AAC_FIBSTATE_NORM; 164890075Sobrien } 164990075Sobrien 165090075Sobrien /* 165190075Sobrien * Give the FIB to the controller, wait for a response. 165290075Sobrien */ 165390075Sobrien if (aac_sync_command(sc, AAC_MONKER_SYNCFIB, 165490075Sobrien fib->Header.ReceiverFibAddress, 0, 0, 0, NULL)) { 165590075Sobrien debug(2, "IO error"); 165690075Sobrien return(EIO); 165790075Sobrien } 165890075Sobrien 165990075Sobrien /* 166090075Sobrien * Copy out the result 166190075Sobrien */ 166290075Sobrien if (result != NULL) { 166390075Sobrien u_int copysize; 166490075Sobrien 166590075Sobrien copysize = fib->Header.Size - sizeof(struct aac_fib_header); 166690075Sobrien if (copysize > *resultsize) 166790075Sobrien copysize = *resultsize; 166890075Sobrien *resultsize = fib->Header.Size - sizeof(struct aac_fib_header); 166990075Sobrien bcopy(fib->data, result, copysize); 167090075Sobrien } 167190075Sobrien return(0); 167290075Sobrien} 167390075Sobrien 167490075Sobrien/* 167552284Sobrien * Adapter-space FIB queue manipulation 167652284Sobrien * 167752284Sobrien * Note that the queue implementation here is a little funky; neither the PI or 167890075Sobrien * CI will ever be zero. This behaviour is a controller feature. 167952284Sobrien */ 168052284Sobrienstatic struct { 168152284Sobrien int size; 168252284Sobrien int notify; 168352284Sobrien} aac_qinfo[] = { 168452284Sobrien {AAC_HOST_NORM_CMD_ENTRIES, AAC_DB_COMMAND_NOT_FULL}, 168552284Sobrien {AAC_HOST_HIGH_CMD_ENTRIES, 0}, 168652284Sobrien {AAC_ADAP_NORM_CMD_ENTRIES, AAC_DB_COMMAND_READY}, 168752284Sobrien {AAC_ADAP_HIGH_CMD_ENTRIES, 0}, 168852284Sobrien {AAC_HOST_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_NOT_FULL}, 168990075Sobrien {AAC_HOST_HIGH_RESP_ENTRIES, 0}, 169090075Sobrien {AAC_ADAP_NORM_RESP_ENTRIES, AAC_DB_RESPONSE_READY}, 169190075Sobrien {AAC_ADAP_HIGH_RESP_ENTRIES, 0} 169252284Sobrien}; 1693 1694/* 1695 * Atomically insert an entry into the nominated queue, returns 0 on success or 1696 * EBUSY if the queue is full. 1697 * 1698 * Note: it would be more efficient to defer notifying the controller in 1699 * the case where we may be inserting several entries in rapid succession, 1700 * but implementing this usefully may be difficult (it would involve a 1701 * separate queue/notify interface). 1702 */ 1703static int 1704aac_enqueue_fib(struct aac_softc *sc, int queue, struct aac_command *cm) 1705{ 1706 u_int32_t pi, ci; 1707 int s, error; 1708 u_int32_t fib_size; 1709 u_int32_t fib_addr; 1710 1711 debug_called(3); 1712 1713 fib_size = cm->cm_fib->Header.Size; 1714 fib_addr = cm->cm_fib->Header.ReceiverFibAddress; 1715 1716 s = splbio(); 1717 1718 /* get the producer/consumer indices */ 1719 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1720 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1721 1722 /* wrap the queue? */ 1723 if (pi >= aac_qinfo[queue].size) 1724 pi = 0; 1725 1726 /* check for queue full */ 1727 if ((pi + 1) == ci) { 1728 error = EBUSY; 1729 goto out; 1730 } 1731 1732 /* populate queue entry */ 1733 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1734 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1735 1736 /* update producer index */ 1737 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1738 1739 /* 1740 * To avoid a race with its completion interrupt, place this command on 1741 * the busy queue prior to advertising it to the controller. 1742 */ 1743 aac_enqueue_busy(cm); 1744 1745 /* notify the adapter if we know how */ 1746 if (aac_qinfo[queue].notify != 0) 1747 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1748 1749 error = 0; 1750 1751out: 1752 splx(s); 1753 return(error); 1754} 1755 1756/* 1757 * Atomically remove one entry from the nominated queue, returns 0 on 1758 * success or ENOENT if the queue is empty. 1759 */ 1760static int 1761aac_dequeue_fib(struct aac_softc *sc, int queue, u_int32_t *fib_size, 1762 struct aac_fib **fib_addr) 1763{ 1764 u_int32_t pi, ci; 1765 int s, error; 1766 int notify; 1767 1768 debug_called(3); 1769 1770 s = splbio(); 1771 1772 /* get the producer/consumer indices */ 1773 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1774 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1775 1776 /* check for queue empty */ 1777 if (ci == pi) { 1778 error = ENOENT; 1779 goto out; 1780 } 1781 1782 notify = 0; 1783 if (ci == pi + 1) 1784 notify++; 1785 1786 /* wrap the queue? */ 1787 if (ci >= aac_qinfo[queue].size) 1788 ci = 0; 1789 1790 /* fetch the entry */ 1791 *fib_size = (sc->aac_qentries[queue] + ci)->aq_fib_size; 1792 *fib_addr = (struct aac_fib *)(sc->aac_qentries[queue] + 1793 ci)->aq_fib_addr; 1794 1795 /* update consumer index */ 1796 sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX] = ci + 1; 1797 1798 /* if we have made the queue un-full, notify the adapter */ 1799 if (notify && (aac_qinfo[queue].notify != 0)) 1800 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1801 error = 0; 1802 1803out: 1804 splx(s); 1805 return(error); 1806} 1807 1808/* 1809 * Put our response to an Adapter Initialed Fib on the response queue 1810 */ 1811static int 1812aac_enqueue_response(struct aac_softc *sc, int queue, struct aac_fib *fib) 1813{ 1814 u_int32_t pi, ci; 1815 int s, error; 1816 u_int32_t fib_size; 1817 u_int32_t fib_addr; 1818 1819 debug_called(1); 1820 1821 /* Tell the adapter where the FIB is */ 1822 fib_size = fib->Header.Size; 1823 fib_addr = fib->Header.SenderFibAddress; 1824 fib->Header.ReceiverFibAddress = fib_addr; 1825 1826 s = splbio(); 1827 1828 /* get the producer/consumer indices */ 1829 pi = sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX]; 1830 ci = sc->aac_queues->qt_qindex[queue][AAC_CONSUMER_INDEX]; 1831 1832 /* wrap the queue? */ 1833 if (pi >= aac_qinfo[queue].size) 1834 pi = 0; 1835 1836 /* check for queue full */ 1837 if ((pi + 1) == ci) { 1838 error = EBUSY; 1839 goto out; 1840 } 1841 1842 /* populate queue entry */ 1843 (sc->aac_qentries[queue] + pi)->aq_fib_size = fib_size; 1844 (sc->aac_qentries[queue] + pi)->aq_fib_addr = fib_addr; 1845 1846 /* update producer index */ 1847 sc->aac_queues->qt_qindex[queue][AAC_PRODUCER_INDEX] = pi + 1; 1848 1849 /* notify the adapter if we know how */ 1850 if (aac_qinfo[queue].notify != 0) 1851 AAC_QNOTIFY(sc, aac_qinfo[queue].notify); 1852 1853 error = 0; 1854 1855out: 1856 splx(s); 1857 return(error); 1858} 1859 1860/* 1861 * Check for commands that have been outstanding for a suspiciously long time, 1862 * and complain about them. 1863 */ 1864static void 1865aac_timeout(struct aac_softc *sc) 1866{ 1867 int s; 1868 struct aac_command *cm; 1869 time_t deadline; 1870 1871#if 0 1872 /* simulate an interrupt to handle possibly-missed interrupts */ 1873 /* 1874 * XXX This was done to work around another bug which has since been 1875 * fixed. It is dangerous anyways because you don't want multiple 1876 * threads in the interrupt handler at the same time! If calling 1877 * is deamed neccesary in the future, proper mutexes must be used. 1878 */ 1879 s = splbio(); 1880 aac_intr(sc); 1881 splx(s); 1882 1883 /* kick the I/O queue to restart it in the case of deadlock */ 1884 aac_startio(sc); 1885#endif 1886 1887 /* 1888 * traverse the busy command list, bitch about late commands once 1889 * only. 1890 */ 1891 deadline = time_second - AAC_CMD_TIMEOUT; 1892 s = splbio(); 1893 TAILQ_FOREACH(cm, &sc->aac_busy, cm_link) { 1894 if ((cm->cm_timestamp < deadline) 1895 /* && !(cm->cm_flags & AAC_CMD_TIMEDOUT) */) { 1896 cm->cm_flags |= AAC_CMD_TIMEDOUT; 1897 device_printf(sc->aac_dev, 1898 "COMMAND %p TIMEOUT AFTER %d SECONDS\n", 1899 cm, (int)(time_second-cm->cm_timestamp)); 1900 AAC_PRINT_FIB(sc, cm->cm_fib); 1901 } 1902 } 1903 splx(s); 1904 1905 /* reset the timer for next time */ 1906 timeout((timeout_t*)aac_timeout, sc, AAC_PERIODIC_INTERVAL * hz); 1907 return; 1908} 1909 1910/* 1911 * Interface Function Vectors 1912 */ 1913 1914/* 1915 * Read the current firmware status word. 1916 */ 1917static int 1918aac_sa_get_fwstatus(struct aac_softc *sc) 1919{ 1920 debug_called(3); 1921 1922 return(AAC_GETREG4(sc, AAC_SA_FWSTATUS)); 1923} 1924 1925static int 1926aac_rx_get_fwstatus(struct aac_softc *sc) 1927{ 1928 debug_called(3); 1929 1930 return(AAC_GETREG4(sc, AAC_RX_FWSTATUS)); 1931} 1932 1933static int 1934aac_fa_get_fwstatus(struct aac_softc *sc) 1935{ 1936 int val; 1937 1938 debug_called(3); 1939 1940 val = AAC_GETREG4(sc, AAC_FA_FWSTATUS); 1941 return (val); 1942} 1943 1944/* 1945 * Notify the controller of a change in a given queue 1946 */ 1947 1948static void 1949aac_sa_qnotify(struct aac_softc *sc, int qbit) 1950{ 1951 debug_called(3); 1952 1953 AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit); 1954} 1955 1956static void 1957aac_rx_qnotify(struct aac_softc *sc, int qbit) 1958{ 1959 debug_called(3); 1960 1961 AAC_SETREG4(sc, AAC_RX_IDBR, qbit); 1962} 1963 1964static void 1965aac_fa_qnotify(struct aac_softc *sc, int qbit) 1966{ 1967 debug_called(3); 1968 1969 AAC_SETREG2(sc, AAC_FA_DOORBELL1, qbit); 1970 AAC_FA_HACK(sc); 1971} 1972 1973/* 1974 * Get the interrupt reason bits 1975 */ 1976static int 1977aac_sa_get_istatus(struct aac_softc *sc) 1978{ 1979 debug_called(3); 1980 1981 return(AAC_GETREG2(sc, AAC_SA_DOORBELL0)); 1982} 1983 1984static int 1985aac_rx_get_istatus(struct aac_softc *sc) 1986{ 1987 debug_called(3); 1988 1989 return(AAC_GETREG4(sc, AAC_RX_ODBR)); 1990} 1991 1992static int 1993aac_fa_get_istatus(struct aac_softc *sc) 1994{ 1995 int val; 1996 1997 debug_called(3); 1998 1999 val = AAC_GETREG2(sc, AAC_FA_DOORBELL0); 2000 return (val); 2001} 2002 2003/* 2004 * Clear some interrupt reason bits 2005 */ 2006static void 2007aac_sa_clear_istatus(struct aac_softc *sc, int mask) 2008{ 2009 debug_called(3); 2010 2011 AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask); 2012} 2013 2014static void 2015aac_rx_clear_istatus(struct aac_softc *sc, int mask) 2016{ 2017 debug_called(3); 2018 2019 AAC_SETREG4(sc, AAC_RX_ODBR, mask); 2020} 2021 2022static void 2023aac_fa_clear_istatus(struct aac_softc *sc, int mask) 2024{ 2025 debug_called(3); 2026 2027 AAC_SETREG2(sc, AAC_FA_DOORBELL0_CLEAR, mask); 2028 AAC_FA_HACK(sc); 2029} 2030 2031/* 2032 * Populate the mailbox and set the command word 2033 */ 2034static void 2035aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2036 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2037{ 2038 debug_called(4); 2039 2040 AAC_SETREG4(sc, AAC_SA_MAILBOX, command); 2041 AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0); 2042 AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1); 2043 AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2); 2044 AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3); 2045} 2046 2047static void 2048aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command, 2049 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2050{ 2051 debug_called(4); 2052 2053 AAC_SETREG4(sc, AAC_RX_MAILBOX, command); 2054 AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0); 2055 AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1); 2056 AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2); 2057 AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3); 2058} 2059 2060static void 2061aac_fa_set_mailbox(struct aac_softc *sc, u_int32_t command, 2062 u_int32_t arg0, u_int32_t arg1, u_int32_t arg2, u_int32_t arg3) 2063{ 2064 debug_called(4); 2065 2066 AAC_SETREG4(sc, AAC_FA_MAILBOX, command); 2067 AAC_FA_HACK(sc); 2068 AAC_SETREG4(sc, AAC_FA_MAILBOX + 4, arg0); 2069 AAC_FA_HACK(sc); 2070 AAC_SETREG4(sc, AAC_FA_MAILBOX + 8, arg1); 2071 AAC_FA_HACK(sc); 2072 AAC_SETREG4(sc, AAC_FA_MAILBOX + 12, arg2); 2073 AAC_FA_HACK(sc); 2074 AAC_SETREG4(sc, AAC_FA_MAILBOX + 16, arg3); 2075 AAC_FA_HACK(sc); 2076} 2077 2078/* 2079 * Fetch the immediate command status word 2080 */ 2081static int 2082aac_sa_get_mailboxstatus(struct aac_softc *sc) 2083{ 2084 debug_called(4); 2085 2086 return(AAC_GETREG4(sc, AAC_SA_MAILBOX)); 2087} 2088 2089static int 2090aac_rx_get_mailboxstatus(struct aac_softc *sc) 2091{ 2092 debug_called(4); 2093 2094 return(AAC_GETREG4(sc, AAC_RX_MAILBOX)); 2095} 2096 2097static int 2098aac_fa_get_mailboxstatus(struct aac_softc *sc) 2099{ 2100 int val; 2101 2102 debug_called(4); 2103 2104 val = AAC_GETREG4(sc, AAC_FA_MAILBOX); 2105 return (val); 2106} 2107 2108/* 2109 * Set/clear interrupt masks 2110 */ 2111static void 2112aac_sa_set_interrupts(struct aac_softc *sc, int enable) 2113{ 2114 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2115 2116 if (enable) { 2117 AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2118 } else { 2119 AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0); 2120 } 2121} 2122 2123static void 2124aac_rx_set_interrupts(struct aac_softc *sc, int enable) 2125{ 2126 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2127 2128 if (enable) { 2129 AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS); 2130 } else { 2131 AAC_SETREG4(sc, AAC_RX_OIMR, ~0); 2132 } 2133} 2134 2135static void 2136aac_fa_set_interrupts(struct aac_softc *sc, int enable) 2137{ 2138 debug(2, "%sable interrupts", enable ? "en" : "dis"); 2139 2140 if (enable) { 2141 AAC_SETREG2((sc), AAC_FA_MASK0_CLEAR, AAC_DB_INTERRUPTS); 2142 AAC_FA_HACK(sc); 2143 } else { 2144 AAC_SETREG2((sc), AAC_FA_MASK0, ~0); 2145 AAC_FA_HACK(sc); 2146 } 2147} 2148 2149/* 2150 * Debugging and Diagnostics 2151 */ 2152 2153/* 2154 * Print some information about the controller. 2155 */ 2156static void 2157aac_describe_controller(struct aac_softc *sc) 2158{ 2159 u_int8_t buf[AAC_FIB_DATASIZE]; /* XXX really a bit big 2160 * for the stack */ 2161 u_int16_t bufsize; 2162 struct aac_adapter_info *info; 2163 u_int8_t arg; 2164 2165 debug_called(2); 2166 2167 arg = 0; 2168 bufsize = sizeof(buf); 2169 if (aac_sync_fib(sc, RequestAdapterInfo, 0, &arg, sizeof(arg), &buf, 2170 &bufsize)) { 2171 device_printf(sc->aac_dev, "RequestAdapterInfo failed\n"); 2172 return; 2173 } 2174 if (bufsize != sizeof(*info)) { 2175 device_printf(sc->aac_dev, 2176 "RequestAdapterInfo returned wrong data size " 2177 "(%d != %d)\n", bufsize, sizeof(*info)); 2178 /*return;*/ 2179 } 2180 info = (struct aac_adapter_info *)&buf[0]; 2181 2182 device_printf(sc->aac_dev, "%s %dMHz, %dMB cache memory, %s\n", 2183 aac_describe_code(aac_cpu_variant, info->CpuVariant), 2184 info->ClockSpeed, info->BufferMem / (1024 * 1024), 2185 aac_describe_code(aac_battery_platform, 2186 info->batteryPlatform)); 2187 2188 /* save the kernel revision structure for later use */ 2189 sc->aac_revision = info->KernelRevision; 2190 device_printf(sc->aac_dev, "Kernel %d.%d-%d, Build %d, S/N %6X\n", 2191 info->KernelRevision.external.comp.major, 2192 info->KernelRevision.external.comp.minor, 2193 info->KernelRevision.external.comp.dash, 2194 info->KernelRevision.buildNumber, 2195 (u_int32_t)(info->SerialNumber & 0xffffff)); 2196} 2197 2198/* 2199 * Look up a text description of a numeric error code and return a pointer to 2200 * same. 2201 */ 2202static char * 2203aac_describe_code(struct aac_code_lookup *table, u_int32_t code) 2204{ 2205 int i; 2206 2207 for (i = 0; table[i].string != NULL; i++) 2208 if (table[i].code == code) 2209 return(table[i].string); 2210 return(table[i + 1].string); 2211} 2212 2213/* 2214 * Management Interface 2215 */ 2216 2217static int 2218aac_open(dev_t dev, int flags, int fmt, d_thread_t *td) 2219{ 2220 struct aac_softc *sc; 2221 2222 debug_called(2); 2223 2224 sc = dev->si_drv1; 2225 2226 /* Check to make sure the device isn't already open */ 2227 if (sc->aac_state & AAC_STATE_OPEN) { 2228 return EBUSY; 2229 } 2230 sc->aac_state |= AAC_STATE_OPEN; 2231 2232 return 0; 2233} 2234 2235static int 2236aac_close(dev_t dev, int flags, int fmt, d_thread_t *td) 2237{ 2238 struct aac_softc *sc; 2239 2240 debug_called(2); 2241 2242 sc = dev->si_drv1; 2243 2244 /* Mark this unit as no longer open */ 2245 sc->aac_state &= ~AAC_STATE_OPEN; 2246 2247 return 0; 2248} 2249 2250static int 2251aac_ioctl(dev_t dev, u_long cmd, caddr_t arg, int flag, d_thread_t *td) 2252{ 2253 union aac_statrequest *as; 2254 struct aac_softc *sc; 2255 int error = 0; 2256 int i; 2257 2258 debug_called(2); 2259 2260 as = (union aac_statrequest *)arg; 2261 sc = dev->si_drv1; 2262 2263 switch (cmd) { 2264 case AACIO_STATS: 2265 switch (as->as_item) { 2266 case AACQ_FREE: 2267 case AACQ_BIO: 2268 case AACQ_READY: 2269 case AACQ_BUSY: 2270 case AACQ_COMPLETE: 2271 bcopy(&sc->aac_qstat[as->as_item], &as->as_qstat, 2272 sizeof(struct aac_qstat)); 2273 break; 2274 default: 2275 error = ENOENT; 2276 break; 2277 } 2278 break; 2279 2280 case FSACTL_SENDFIB: 2281 arg = *(caddr_t*)arg; 2282 case FSACTL_LNX_SENDFIB: 2283 debug(1, "FSACTL_SENDFIB"); 2284 error = aac_ioctl_sendfib(sc, arg); 2285 break; 2286 case FSACTL_AIF_THREAD: 2287 case FSACTL_LNX_AIF_THREAD: 2288 debug(1, "FSACTL_AIF_THREAD"); 2289 error = EINVAL; 2290 break; 2291 case FSACTL_OPEN_GET_ADAPTER_FIB: 2292 arg = *(caddr_t*)arg; 2293 case FSACTL_LNX_OPEN_GET_ADAPTER_FIB: 2294 debug(1, "FSACTL_OPEN_GET_ADAPTER_FIB"); 2295 /* 2296 * Pass the caller out an AdapterFibContext. 2297 * 2298 * Note that because we only support one opener, we 2299 * basically ignore this. Set the caller's context to a magic 2300 * number just in case. 2301 * 2302 * The Linux code hands the driver a pointer into kernel space, 2303 * and then trusts it when the caller hands it back. Aiee! 2304 * Here, we give it the proc pointer of the per-adapter aif 2305 * thread. It's only used as a sanity check in other calls. 2306 */ 2307 i = (int)sc->aifthread; 2308 error = copyout(&i, arg, sizeof(i)); 2309 break; 2310 case FSACTL_GET_NEXT_ADAPTER_FIB: 2311 arg = *(caddr_t*)arg; 2312 case FSACTL_LNX_GET_NEXT_ADAPTER_FIB: 2313 debug(1, "FSACTL_GET_NEXT_ADAPTER_FIB"); 2314 error = aac_getnext_aif(sc, arg); 2315 break; 2316 case FSACTL_CLOSE_GET_ADAPTER_FIB: 2317 case FSACTL_LNX_CLOSE_GET_ADAPTER_FIB: 2318 debug(1, "FSACTL_CLOSE_GET_ADAPTER_FIB"); 2319 /* don't do anything here */ 2320 break; 2321 case FSACTL_MINIPORT_REV_CHECK: 2322 arg = *(caddr_t*)arg; 2323 case FSACTL_LNX_MINIPORT_REV_CHECK: 2324 debug(1, "FSACTL_MINIPORT_REV_CHECK"); 2325 error = aac_rev_check(sc, arg); 2326 break; 2327 case FSACTL_QUERY_DISK: 2328 arg = *(caddr_t*)arg; 2329 case FSACTL_LNX_QUERY_DISK: 2330 debug(1, "FSACTL_QUERY_DISK"); 2331 error = aac_query_disk(sc, arg); 2332 break; 2333 case FSACTL_DELETE_DISK: 2334 case FSACTL_LNX_DELETE_DISK: 2335 /* 2336 * We don't trust the underland to tell us when to delete a 2337 * container, rather we rely on an AIF coming from the 2338 * controller 2339 */ 2340 error = 0; 2341 break; 2342 default: 2343 debug(1, "unsupported cmd 0x%lx\n", cmd); 2344 error = EINVAL; 2345 break; 2346 } 2347 return(error); 2348} 2349 2350static int 2351aac_poll(dev_t dev, int poll_events, d_thread_t *td) 2352{ 2353 struct aac_softc *sc; 2354 int revents; 2355 2356 sc = dev->si_drv1; 2357 revents = 0; 2358 2359 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2360 if ((poll_events & (POLLRDNORM | POLLIN)) != 0) { 2361 if (sc->aac_aifq_tail != sc->aac_aifq_head) 2362 revents |= poll_events & (POLLIN | POLLRDNORM); 2363 } 2364 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2365 2366 if (revents == 0) { 2367 if (poll_events & (POLLIN | POLLRDNORM)) 2368 selrecord(td, &sc->rcv_select); 2369 } 2370 2371 return (revents); 2372} 2373 2374/* 2375 * Send a FIB supplied from userspace 2376 */ 2377static int 2378aac_ioctl_sendfib(struct aac_softc *sc, caddr_t ufib) 2379{ 2380 struct aac_command *cm; 2381 int size, error; 2382 2383 debug_called(2); 2384 2385 cm = NULL; 2386 2387 /* 2388 * Get a command 2389 */ 2390 if (aac_alloc_command(sc, &cm)) { 2391 error = EBUSY; 2392 goto out; 2393 } 2394 2395 /* 2396 * Fetch the FIB header, then re-copy to get data as well. 2397 */ 2398 if ((error = copyin(ufib, cm->cm_fib, 2399 sizeof(struct aac_fib_header))) != 0) 2400 goto out; 2401 size = cm->cm_fib->Header.Size + sizeof(struct aac_fib_header); 2402 if (size > sizeof(struct aac_fib)) { 2403 device_printf(sc->aac_dev, "incoming FIB oversized (%d > %d)\n", 2404 size, sizeof(struct aac_fib)); 2405 size = sizeof(struct aac_fib); 2406 } 2407 if ((error = copyin(ufib, cm->cm_fib, size)) != 0) 2408 goto out; 2409 cm->cm_fib->Header.Size = size; 2410 cm->cm_timestamp = time_second; 2411 2412 /* 2413 * Pass the FIB to the controller, wait for it to complete. 2414 */ 2415 if ((error = aac_wait_command(cm, 30)) != 0) { /* XXX user timeout? */ 2416 printf("aac_wait_command return %d\n", error); 2417 goto out; 2418 } 2419 2420 /* 2421 * Copy the FIB and data back out to the caller. 2422 */ 2423 size = cm->cm_fib->Header.Size; 2424 if (size > sizeof(struct aac_fib)) { 2425 device_printf(sc->aac_dev, "outbound FIB oversized (%d > %d)\n", 2426 size, sizeof(struct aac_fib)); 2427 size = sizeof(struct aac_fib); 2428 } 2429 error = copyout(cm->cm_fib, ufib, size); 2430 2431out: 2432 if (cm != NULL) { 2433 aac_release_command(cm); 2434 } 2435 return(error); 2436} 2437 2438/* 2439 * Handle an AIF sent to us by the controller; queue it for later reference. 2440 * If the queue fills up, then drop the older entries. 2441 */ 2442static void 2443aac_handle_aif(struct aac_softc *sc, struct aac_fib *fib) 2444{ 2445 struct aac_aif_command *aif; 2446 struct aac_container *co, *co_next; 2447 struct aac_mntinfo mi; 2448 struct aac_mntinforesponse mir; 2449 u_int16_t rsize; 2450 int next, found; 2451 int added = 0, i = 0; 2452 2453 debug_called(2); 2454 2455 aif = (struct aac_aif_command*)&fib->data[0]; 2456 aac_print_aif(sc, aif); 2457 2458 /* Is it an event that we should care about? */ 2459 switch (aif->command) { 2460 case AifCmdEventNotify: 2461 switch (aif->data.EN.type) { 2462 case AifEnAddContainer: 2463 case AifEnDeleteContainer: 2464 /* 2465 * A container was added or deleted, but the message 2466 * doesn't tell us anything else! Re-enumerate the 2467 * containers and sort things out. 2468 */ 2469 mi.Command = VM_NameServe; 2470 mi.MntType = FT_FILESYS; 2471 do { 2472 /* 2473 * Ask the controller for its containers one at 2474 * a time. 2475 * XXX What if the controller's list changes 2476 * midway through this enumaration? 2477 * XXX This should be done async. 2478 */ 2479 mi.MntCount = i; 2480 rsize = sizeof(mir); 2481 if (aac_sync_fib(sc, ContainerCommand, 0, &mi, 2482 sizeof(mi), &mir, &rsize)) { 2483 debug(2, "Error probing container %d\n", 2484 i); 2485 continue; 2486 } 2487 if (rsize != sizeof(mir)) { 2488 debug(2, "Container response size too " 2489 "large\n"); 2490 continue; 2491 } 2492 /* 2493 * Check the container against our list. 2494 * co->co_found was already set to 0 in a 2495 * previous run. 2496 */ 2497 if ((mir.Status == ST_OK) && 2498 (mir.MntTable[0].VolType != CT_NONE)) { 2499 found = 0; 2500 TAILQ_FOREACH(co, 2501 &sc->aac_container_tqh, 2502 co_link) { 2503 if (co->co_mntobj.ObjectId == 2504 mir.MntTable[0].ObjectId) { 2505 co->co_found = 1; 2506 found = 1; 2507 break; 2508 } 2509 } 2510 /* 2511 * If the container matched, continue 2512 * in the list. 2513 */ 2514 if (found) { 2515 i++; 2516 continue; 2517 } 2518 2519 /* 2520 * This is a new container. Do all the 2521 * appropriate things to set it up. */ 2522 aac_add_container(sc, &mir, 1); 2523 added = 1; 2524 } 2525 i++; 2526 } while ((i < mir.MntRespCount) && 2527 (i < AAC_MAX_CONTAINERS)); 2528 2529 /* 2530 * Go through our list of containers and see which ones 2531 * were not marked 'found'. Since the controller didn't 2532 * list them they must have been deleted. Do the 2533 * appropriate steps to destroy the device. Also reset 2534 * the co->co_found field. 2535 */ 2536 co = TAILQ_FIRST(&sc->aac_container_tqh); 2537 while (co != NULL) { 2538 if (co->co_found == 0) { 2539 device_delete_child(sc->aac_dev, 2540 co->co_disk); 2541 co_next = TAILQ_NEXT(co, co_link); 2542 AAC_LOCK_ACQUIRE(&sc-> 2543 aac_container_lock); 2544 TAILQ_REMOVE(&sc->aac_container_tqh, co, 2545 co_link); 2546 AAC_LOCK_RELEASE(&sc-> 2547 aac_container_lock); 2548 FREE(co, M_AACBUF); 2549 co = co_next; 2550 } else { 2551 co->co_found = 0; 2552 co = TAILQ_NEXT(co, co_link); 2553 } 2554 } 2555 2556 /* Attach the newly created containers */ 2557 if (added) 2558 bus_generic_attach(sc->aac_dev); 2559 2560 break; 2561 2562 default: 2563 break; 2564 } 2565 2566 default: 2567 break; 2568 } 2569 2570 /* Copy the AIF data to the AIF queue for ioctl retrieval */ 2571 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2572 next = (sc->aac_aifq_head + 1) % AAC_AIFQ_LENGTH; 2573 if (next != sc->aac_aifq_tail) { 2574 bcopy(aif, &sc->aac_aifq[next], sizeof(struct aac_aif_command)); 2575 sc->aac_aifq_head = next; 2576 2577 /* On the off chance that someone is sleeping for an aif... */ 2578 if (sc->aac_state & AAC_STATE_AIF_SLEEPER) 2579 wakeup(sc->aac_aifq); 2580 /* Wakeup any poll()ers */ 2581 selwakeup(&sc->rcv_select); 2582 } 2583 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2584 2585 return; 2586} 2587 2588/* 2589 * Linux Management Interface 2590 * This is soon to be removed! 2591 */ 2592 2593#ifdef AAC_COMPAT_LINUX 2594 2595#include <sys/proc.h> 2596#include <machine/../linux/linux.h> 2597#include <machine/../linux/linux_proto.h> 2598#include <compat/linux/linux_ioctl.h> 2599 2600/* There are multiple ioctl number ranges that need to be handled */ 2601#define AAC_LINUX_IOCTL_MIN 0x0000 2602#define AAC_LINUX_IOCTL_MAX 0x21ff 2603 2604static linux_ioctl_function_t aac_linux_ioctl; 2605static struct linux_ioctl_handler aac_handler = {aac_linux_ioctl, 2606 AAC_LINUX_IOCTL_MIN, 2607 AAC_LINUX_IOCTL_MAX}; 2608 2609SYSINIT (aac_register, SI_SUB_KLD, SI_ORDER_MIDDLE, 2610 linux_ioctl_register_handler, &aac_handler); 2611SYSUNINIT(aac_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE, 2612 linux_ioctl_unregister_handler, &aac_handler); 2613 2614MODULE_DEPEND(aac, linux, 1, 1, 1); 2615 2616static int 2617aac_linux_ioctl(struct thread *td, struct linux_ioctl_args *args) 2618{ 2619 struct file *fp; 2620 u_long cmd; 2621 int error; 2622 2623 debug_called(2); 2624 2625 if ((error = fget(td, args->fd, &fp)) != 0) 2626 return (error); 2627 cmd = args->cmd; 2628 2629 /* 2630 * Pass the ioctl off to our standard handler. 2631 */ 2632 error = (fo_ioctl(fp, cmd, (caddr_t)args->arg, td)); 2633 fdrop(fp, td); 2634 return (error); 2635} 2636 2637#endif 2638 2639/* 2640 * Return the Revision of the driver to userspace and check to see if the 2641 * userspace app is possibly compatible. This is extremely bogus since 2642 * our driver doesn't follow Adaptec's versioning system. Cheat by just 2643 * returning what the card reported. 2644 */ 2645static int 2646aac_rev_check(struct aac_softc *sc, caddr_t udata) 2647{ 2648 struct aac_rev_check rev_check; 2649 struct aac_rev_check_resp rev_check_resp; 2650 int error = 0; 2651 2652 debug_called(2); 2653 2654 /* 2655 * Copyin the revision struct from userspace 2656 */ 2657 if ((error = copyin(udata, (caddr_t)&rev_check, 2658 sizeof(struct aac_rev_check))) != 0) { 2659 return error; 2660 } 2661 2662 debug(2, "Userland revision= %d\n", 2663 rev_check.callingRevision.buildNumber); 2664 2665 /* 2666 * Doctor up the response struct. 2667 */ 2668 rev_check_resp.possiblyCompatible = 1; 2669 rev_check_resp.adapterSWRevision.external.ul = 2670 sc->aac_revision.external.ul; 2671 rev_check_resp.adapterSWRevision.buildNumber = 2672 sc->aac_revision.buildNumber; 2673 2674 return(copyout((caddr_t)&rev_check_resp, udata, 2675 sizeof(struct aac_rev_check_resp))); 2676} 2677 2678/* 2679 * Pass the caller the next AIF in their queue 2680 */ 2681static int 2682aac_getnext_aif(struct aac_softc *sc, caddr_t arg) 2683{ 2684 struct get_adapter_fib_ioctl agf; 2685 int error, s; 2686 2687 debug_called(2); 2688 2689 if ((error = copyin(arg, &agf, sizeof(agf))) == 0) { 2690 2691 /* 2692 * Check the magic number that we gave the caller. 2693 */ 2694 if (agf.AdapterFibContext != (int)sc->aifthread) { 2695 error = EFAULT; 2696 } else { 2697 2698 s = splbio(); 2699 error = aac_return_aif(sc, agf.AifFib); 2700 2701 if ((error == EAGAIN) && (agf.Wait)) { 2702 sc->aac_state |= AAC_STATE_AIF_SLEEPER; 2703 while (error == EAGAIN) { 2704 error = tsleep(sc->aac_aifq, PRIBIO | 2705 PCATCH, "aacaif", 0); 2706 if (error == 0) 2707 error = aac_return_aif(sc, 2708 agf.AifFib); 2709 } 2710 sc->aac_state &= ~AAC_STATE_AIF_SLEEPER; 2711 } 2712 splx(s); 2713 } 2714 } 2715 return(error); 2716} 2717 2718/* 2719 * Hand the next AIF off the top of the queue out to userspace. 2720 */ 2721static int 2722aac_return_aif(struct aac_softc *sc, caddr_t uptr) 2723{ 2724 int error; 2725 2726 debug_called(2); 2727 2728 AAC_LOCK_ACQUIRE(&sc->aac_aifq_lock); 2729 if (sc->aac_aifq_tail == sc->aac_aifq_head) { 2730 error = EAGAIN; 2731 } else { 2732 error = copyout(&sc->aac_aifq[sc->aac_aifq_tail], uptr, 2733 sizeof(struct aac_aif_command)); 2734 if (error) 2735 printf("aac_return_aif: copyout returned %d\n", error); 2736 if (!error) 2737 sc->aac_aifq_tail = (sc->aac_aifq_tail + 1) % 2738 AAC_AIFQ_LENGTH; 2739 } 2740 AAC_LOCK_RELEASE(&sc->aac_aifq_lock); 2741 return(error); 2742} 2743 2744/* 2745 * Give the userland some information about the container. The AAC arch 2746 * expects the driver to be a SCSI passthrough type driver, so it expects 2747 * the containers to have b:t:l numbers. Fake it. 2748 */ 2749static int 2750aac_query_disk(struct aac_softc *sc, caddr_t uptr) 2751{ 2752 struct aac_query_disk query_disk; 2753 struct aac_container *co; 2754 struct aac_disk *disk; 2755 int error, id; 2756 2757 debug_called(2); 2758 2759 disk = NULL; 2760 2761 error = copyin(uptr, (caddr_t)&query_disk, 2762 sizeof(struct aac_query_disk)); 2763 if (error) 2764 return (error); 2765 2766 id = query_disk.ContainerNumber; 2767 if (id == -1) 2768 return (EINVAL); 2769 2770 AAC_LOCK_ACQUIRE(&sc->aac_container_lock); 2771 TAILQ_FOREACH(co, &sc->aac_container_tqh, co_link) { 2772 if (co->co_mntobj.ObjectId == id) 2773 break; 2774 } 2775 2776 if (co == NULL) { 2777 query_disk.Valid = 0; 2778 query_disk.Locked = 0; 2779 query_disk.Deleted = 1; /* XXX is this right? */ 2780 } else { 2781 disk = device_get_softc(co->co_disk); 2782 query_disk.Valid = 1; 2783 query_disk.Locked = 2784 (disk->ad_flags & AAC_DISK_OPEN) ? 1 : 0; 2785 query_disk.Deleted = 0; 2786 query_disk.Bus = device_get_unit(sc->aac_dev); 2787 query_disk.Target = disk->unit; 2788 query_disk.Lun = 0; 2789 query_disk.UnMapped = 0; 2790 bcopy(disk->ad_dev_t->si_name, 2791 &query_disk.diskDeviceName[0], 10); 2792 } 2793 AAC_LOCK_RELEASE(&sc->aac_container_lock); 2794 2795 error = copyout((caddr_t)&query_disk, uptr, 2796 sizeof(struct aac_query_disk)); 2797 2798 return (error); 2799} 2800 2801