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freebsd-skq/sys/dev/arcmsr/arcmsr.c
Matt Jacob 46a7789ea6 Forced commit to note that the previous CVS comment is 
incorrect. The MODULE_DEPENDS lines were put in (by me)
in 1.14 and removed in 1.15. The facts should be correctly
reported.
2007-03-12 05:10:29 +00:00

2315 lines
77 KiB
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/*
*****************************************************************************************
** O.S : FreeBSD
** FILE NAME : arcmsr.c
** BY : Erich Chen
** Description: SCSI RAID Device Driver for
** ARECA (ARC11XX/ARC12XX/ARC13XX/ARC16XX) SATA/SAS RAID HOST Adapter
** ARCMSR RAID Host adapter
** [RAID controller:INTEL 331(PCI-X) 341(PCI-EXPRESS) chip set]
******************************************************************************************
************************************************************************
**
** Copyright (c) 2004-2006 ARECA Co. Ltd.
** Erich Chen, Taipei Taiwan All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES(INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION)HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
**(INCLUDING NEGLIGENCE OR OTHERWISE)ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**************************************************************************
** History
**
** REV# DATE NAME DESCRIPTION
** 1.00.00.00 3/31/2004 Erich Chen First release
** 1.20.00.02 11/29/2004 Erich Chen bug fix with arcmsr_bus_reset when PHY error
** 1.20.00.03 4/19/2005 Erich Chen add SATA 24 Ports adapter type support
** clean unused function
** 1.20.00.12 9/12/2005 Erich Chen bug fix with abort command handling,
** firmware version check
** and firmware update notify for hardware bug fix
** handling if none zero high part physical address
** of srb resource
** 1.20.00.13 8/18/2006 Erich Chen remove pending srb and report busy
** add iop message xfer
** with scsi pass-through command
** add new device id of sas raid adapters
** code fit for SPARC64 & PPC
** 1.20.00.14 02/05/2007 Erich Chen bug fix for incorrect ccb_h.status report
** and cause g_vfs_done() read write error
******************************************************************************************
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/kernel.h>
#include <sys/bus.h>
#include <sys/queue.h>
#include <sys/stat.h>
#include <sys/devicestat.h>
#include <sys/kthread.h>
#include <sys/module.h>
#include <sys/proc.h>
#include <sys/lock.h>
#include <sys/sysctl.h>
#include <sys/poll.h>
#include <sys/ioccom.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/pmap.h>
#include <isa/rtc.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <machine/atomic.h>
#include <sys/conf.h>
#include <sys/rman.h>
#include <cam/cam.h>
#include <cam/cam_ccb.h>
#include <cam/cam_sim.h>
#include <cam/cam_xpt_sim.h>
#include <cam/cam_debug.h>
#include <cam/scsi/scsi_all.h>
#include <cam/scsi/scsi_message.h>
/*
**************************************************************************
**************************************************************************
*/
#if __FreeBSD_version >= 500005
#include <sys/selinfo.h>
#include <sys/mutex.h>
#include <sys/endian.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#define ARCMSR_LOCK_INIT(l, s) mtx_init(l, s, NULL, MTX_DEF|MTX_RECURSE)
#define ARCMSR_LOCK_ACQUIRE(l) mtx_lock(l)
#define ARCMSR_LOCK_RELEASE(l) mtx_unlock(l)
#define ARCMSR_LOCK_TRY(l) mtx_trylock(l)
#define arcmsr_htole32(x) htole32(x)
typedef struct mtx arcmsr_lock_t;
#else
#include <sys/select.h>
#include <pci/pcivar.h>
#include <pci/pcireg.h>
#define ARCMSR_LOCK_INIT(l, s) simple_lock_init(l)
#define ARCMSR_LOCK_ACQUIRE(l) simple_lock(l)
#define ARCMSR_LOCK_RELEASE(l) simple_unlock(l)
#define ARCMSR_LOCK_TRY(l) simple_lock_try(l)
#define arcmsr_htole32(x) (x)
typedef struct simplelock arcmsr_lock_t;
#endif
#include <dev/arcmsr/arcmsr.h>
#define ARCMSR_SRBS_POOL_SIZE ((sizeof(struct CommandControlBlock) * ARCMSR_MAX_FREESRB_NUM)+0x20)
/*
**************************************************************************
**************************************************************************
*/
#define CHIP_REG_READ32(r) bus_space_read_4(acb->btag, acb->bhandle, offsetof(struct MessageUnit,r))
#define CHIP_REG_WRITE32(r,d) bus_space_write_4(acb->btag, acb->bhandle, offsetof(struct MessageUnit,r), d)
/*
**************************************************************************
**************************************************************************
*/
static struct CommandControlBlock * arcmsr_get_freesrb(struct AdapterControlBlock *acb);
static u_int8_t arcmsr_seek_cmd2abort(union ccb * abortccb);
static u_int8_t arcmsr_wait_msgint_ready(struct AdapterControlBlock *acb);
static u_int32_t arcmsr_probe(device_t dev);
static u_int32_t arcmsr_attach(device_t dev);
static u_int32_t arcmsr_detach(device_t dev);
static u_int32_t arcmsr_iop_ioctlcmd(struct AdapterControlBlock *acb, u_int32_t ioctl_cmd, caddr_t arg);
static void arcmsr_iop_parking(struct AdapterControlBlock *acb);
static void arcmsr_shutdown(device_t dev);
static void arcmsr_interrupt(void *arg);
static void arcmsr_polling_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb);
static void arcmsr_free_resource(struct AdapterControlBlock *acb);
static void arcmsr_bus_reset(struct AdapterControlBlock *acb);
static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb);
static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb);
static void arcmsr_iop_init(struct AdapterControlBlock *acb);
static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb);
static void arcmsr_post_Qbuffer(struct AdapterControlBlock *acb);
static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb);
static void arcmsr_srb_complete(struct CommandControlBlock *srb, int stand_flag);
static void arcmsr_iop_reset(struct AdapterControlBlock *acb);
static void arcmsr_report_sense_info(struct CommandControlBlock *srb);
static void arcmsr_build_srb(struct CommandControlBlock *srb, bus_dma_segment_t * dm_segs, u_int32_t nseg);
static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, union ccb * pccb);
static int arcmsr_resume(device_t dev);
static int arcmsr_suspend(device_t dev);
/*
**************************************************************************
**************************************************************************
*/
static void UDELAY(u_int32_t us) { DELAY(us); }
/*
**************************************************************************
**************************************************************************
*/
static bus_dmamap_callback_t arcmsr_map_freesrb;
static bus_dmamap_callback_t arcmsr_executesrb;
/*
**************************************************************************
**************************************************************************
*/
static d_open_t arcmsr_open;
static d_close_t arcmsr_close;
static d_ioctl_t arcmsr_ioctl;
static device_method_t arcmsr_methods[]={
DEVMETHOD(device_probe, arcmsr_probe),
DEVMETHOD(device_attach, arcmsr_attach),
DEVMETHOD(device_detach, arcmsr_detach),
DEVMETHOD(device_shutdown, arcmsr_shutdown),
DEVMETHOD(device_suspend, arcmsr_suspend),
DEVMETHOD(device_resume, arcmsr_resume),
DEVMETHOD(bus_print_child, bus_generic_print_child),
DEVMETHOD(bus_driver_added, bus_generic_driver_added),
{ 0, 0 }
};
static driver_t arcmsr_driver={
"arcmsr", arcmsr_methods, sizeof(struct AdapterControlBlock)
};
static devclass_t arcmsr_devclass;
DRIVER_MODULE(arcmsr, pci, arcmsr_driver, arcmsr_devclass, 0, 0);
MODULE_DEPEND(arcmsr, pci, 1, 1, 1);
MODULE_DEPEND(arcmsr, cam, 1, 1, 1);
#ifndef BUS_DMA_COHERENT
#define BUS_DMA_COHERENT 0x04 /* hint: map memory in a coherent way */
#endif
#if __FreeBSD_version >= 501000
#ifndef D_NEEDGIANT
#define D_NEEDGIANT 0x00400000 /* driver want Giant */
#endif
#ifndef D_VERSION
#define D_VERSION 0x20011966
#endif
static struct cdevsw arcmsr_cdevsw={
#if __FreeBSD_version > 502010
.d_version = D_VERSION,
#endif
.d_flags = D_NEEDGIANT,
.d_open = arcmsr_open, /* open */
.d_close = arcmsr_close, /* close */
.d_ioctl = arcmsr_ioctl, /* ioctl */
.d_name = "arcmsr", /* name */
};
#else
#define ARCMSR_CDEV_MAJOR 180
static struct cdevsw arcmsr_cdevsw = {
arcmsr_open, /* open */
arcmsr_close, /* close */
noread, /* read */
nowrite, /* write */
arcmsr_ioctl, /* ioctl */
nopoll, /* poll */
nommap, /* mmap */
nostrategy, /* strategy */
"arcmsr", /* name */
ARCMSR_CDEV_MAJOR, /* major */
nodump, /* dump */
nopsize, /* psize */
0 /* flags */
};
#endif
#if __FreeBSD_version < 500005
static int arcmsr_open(dev_t dev, int flags, int fmt, struct proc *proc)
#else
#if __FreeBSD_version < 503000
static int arcmsr_open(dev_t dev, int flags, int fmt, struct thread *proc)
#else
static int arcmsr_open(struct cdev *dev, int flags, int fmt, d_thread_t *proc)
#endif
#endif
{
#if __FreeBSD_version < 503000
struct AdapterControlBlock *acb=dev->si_drv1;
#else
int unit = minor(dev);
struct AdapterControlBlock *acb = devclass_get_softc(arcmsr_devclass, unit);
#endif
if(acb==NULL) {
return ENXIO;
}
return 0;
}
/*
**************************************************************************
**************************************************************************
*/
#if __FreeBSD_version < 500005
static int arcmsr_close(dev_t dev, int flags, int fmt, struct proc *proc)
#else
#if __FreeBSD_version < 503000
static int arcmsr_close(dev_t dev, int flags, int fmt, struct thread *proc)
#else
static int arcmsr_close(struct cdev *dev, int flags, int fmt, d_thread_t *proc)
#endif
#endif
{
#if __FreeBSD_version < 503000
struct AdapterControlBlock *acb=dev->si_drv1;
#else
int unit = minor(dev);
struct AdapterControlBlock *acb = devclass_get_softc(arcmsr_devclass, unit);
#endif
if(acb==NULL) {
return ENXIO;
}
return 0;
}
/*
**************************************************************************
**************************************************************************
*/
#if __FreeBSD_version < 500005
static int arcmsr_ioctl(dev_t dev, u_long ioctl_cmd, caddr_t arg, int flags, struct proc *proc)
#else
#if __FreeBSD_version < 503000
static int arcmsr_ioctl(dev_t dev, u_long ioctl_cmd, caddr_t arg, int flags, struct thread *proc)
#else
static int arcmsr_ioctl(struct cdev *dev, u_long ioctl_cmd, caddr_t arg, int flags, d_thread_t *proc)
#endif
#endif
{
#if __FreeBSD_version < 503000
struct AdapterControlBlock *acb=dev->si_drv1;
#else
int unit = minor(dev);
struct AdapterControlBlock *acb = devclass_get_softc(arcmsr_devclass, unit);
#endif
if(acb==NULL) {
return ENXIO;
}
return(arcmsr_iop_ioctlcmd(acb, ioctl_cmd, arg));
}
/*
*******************************************************************************
*******************************************************************************
*/
static int arcmsr_suspend(device_t dev)
{
struct AdapterControlBlock *acb = device_get_softc(dev);
u_int32_t intmask_org;
/* disable all outbound interrupt */
intmask_org=CHIP_REG_READ32(outbound_intmask);
CHIP_REG_WRITE32(outbound_intmask, (intmask_org|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE));
/* flush controller */
arcmsr_iop_parking(acb);
return(0);
}
/*
*******************************************************************************
*******************************************************************************
*/
static int arcmsr_resume(device_t dev)
{
struct AdapterControlBlock *acb = device_get_softc(dev);
arcmsr_iop_init(acb);
return(0);
}
/*
*********************************************************************************
*********************************************************************************
*/
static void arcmsr_async(void *cb_arg, u_int32_t code, struct cam_path *path, void *arg)
{
struct AdapterControlBlock *acb;
u_int8_t target_id, target_lun;
struct cam_sim * sim;
sim=(struct cam_sim *) cb_arg;
acb =(struct AdapterControlBlock *) cam_sim_softc(sim);
switch (code) {
case AC_LOST_DEVICE:
target_id=xpt_path_target_id(path);
target_lun=xpt_path_lun_id(path);
if((target_id > ARCMSR_MAX_TARGETID) || (target_lun > ARCMSR_MAX_TARGETLUN)) {
break;
}
printf("%s:scsi id%d lun%d device lost \n"
, device_get_name(acb->pci_dev), target_id, target_lun);
break;
default:
break;
}
}
/*
************************************************************************
************************************************************************
*/
static void arcmsr_flush_adapter_cache(struct AdapterControlBlock *acb)
{
CHIP_REG_WRITE32(inbound_msgaddr0, ARCMSR_INBOUND_MESG0_FLUSH_CACHE);
if(arcmsr_wait_msgint_ready(acb)) {
printf("arcmsr%d: wait 'flush adapter cache' timeout \n"
, acb->pci_unit);
}
return;
}
/*
**********************************************************************
**********************************************************************
*/
static u_int8_t arcmsr_wait_msgint_ready(struct AdapterControlBlock *acb)
{
u_int32_t Index;
u_int8_t Retries=0x00;
do {
for(Index=0; Index < 100; Index++) {
if(CHIP_REG_READ32(outbound_intstatus) & ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
/*clear interrupt*/
CHIP_REG_WRITE32(outbound_intstatus, ARCMSR_MU_OUTBOUND_MESSAGE0_INT);
return 0x00;
}
/* one us delay */
UDELAY(10000);
}/*max 1 seconds*/
}while(Retries++ < 20);/*max 20 sec*/
return 0xff;
}
/*
**********************************************************************
**********************************************************************
*/
static void arcmsr_srb_complete(struct CommandControlBlock *srb, int stand_flag)
{
struct AdapterControlBlock *acb=srb->acb;
union ccb * pccb=srb->pccb;
if((pccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
bus_dmasync_op_t op;
if((pccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
op = BUS_DMASYNC_POSTREAD;
} else {
op = BUS_DMASYNC_POSTWRITE;
}
bus_dmamap_sync(acb->dm_segs_dmat, srb->dm_segs_dmamap, op);
bus_dmamap_unload(acb->dm_segs_dmat, srb->dm_segs_dmamap);
}
ARCMSR_LOCK_ACQUIRE(&acb->workingQ_done_lock);
if(stand_flag==1) {
atomic_subtract_int(&acb->srboutstandingcount, 1);
if((acb->acb_flags & ACB_F_CAM_DEV_QFRZN) && (
acb->srboutstandingcount < ARCMSR_RELEASE_SIMQ_LEVEL)) {
acb->acb_flags &= ~ACB_F_CAM_DEV_QFRZN;
pccb->ccb_h.status |= CAM_RELEASE_SIMQ;
}
}
srb->startdone=ARCMSR_SRB_DONE;
srb->srb_flags=0;
acb->srbworkingQ[acb->workingsrb_doneindex]=srb;
acb->workingsrb_doneindex++;
acb->workingsrb_doneindex %= ARCMSR_MAX_FREESRB_NUM;
ARCMSR_LOCK_RELEASE(&acb->workingQ_done_lock);
xpt_done(pccb);
return;
}
/*
**********************************************************************
**********************************************************************
*/
static void arcmsr_report_sense_info(struct CommandControlBlock *srb)
{
union ccb * pccb=srb->pccb;
pccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
pccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
if(&pccb->csio.sense_data) {
memset(&pccb->csio.sense_data, 0, sizeof(pccb->csio.sense_data));
memcpy(&pccb->csio.sense_data, srb->arcmsr_cdb.SenseData,
get_min(sizeof(struct SENSE_DATA), sizeof(pccb->csio.sense_data)));
((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70); /* Valid,ErrorCode */
pccb->ccb_h.status |= CAM_AUTOSNS_VALID;
}
return;
}
/*
*********************************************************************
**
*********************************************************************
*/
static void arcmsr_abort_allcmd(struct AdapterControlBlock *acb)
{
CHIP_REG_WRITE32(inbound_msgaddr0, ARCMSR_INBOUND_MESG0_ABORT_CMD);
if(arcmsr_wait_msgint_ready(acb)) {
printf("arcmsr%d: wait 'abort all outstanding command' timeout \n"
, acb->pci_unit);
}
return;
}
/*
****************************************************************************
****************************************************************************
*/
static void arcmsr_iop_reset(struct AdapterControlBlock *acb)
{
struct CommandControlBlock *srb;
u_int32_t intmask_org, mask;
u_int32_t i=0;
if(acb->srboutstandingcount!=0)
{
/* talk to iop 331 outstanding command aborted*/
arcmsr_abort_allcmd(acb);
UDELAY(3000*1000);/*wait for 3 sec for all command aborted*/
/* disable all outbound interrupt */
intmask_org=CHIP_REG_READ32(outbound_intmask);
CHIP_REG_WRITE32(outbound_intmask
, intmask_org|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE);
/*clear all outbound posted Q*/
for(i=0;i<ARCMSR_MAX_OUTSTANDING_CMD;i++) {
CHIP_REG_READ32(outbound_queueport);
}
for(i=0;i<ARCMSR_MAX_FREESRB_NUM;i++) {
srb=acb->psrb_pool[i];
if(srb->startdone==ARCMSR_SRB_START) {
srb->startdone=ARCMSR_SRB_ABORTED;
srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
arcmsr_srb_complete(srb, 1);
}
}
/* enable all outbound interrupt */
mask=~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE
|ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE);
CHIP_REG_WRITE32(outbound_intmask, intmask_org & mask);
/* post abort all outstanding command message to RAID controller */
}
atomic_set_int(&acb->srboutstandingcount, 0);
acb->workingsrb_doneindex=0;
acb->workingsrb_startindex=0;
return;
}
/*
**********************************************************************
**********************************************************************
*/
static void arcmsr_build_srb(struct CommandControlBlock *srb, bus_dma_segment_t *dm_segs, u_int32_t nseg)
{
struct ARCMSR_CDB * arcmsr_cdb= &srb->arcmsr_cdb;
u_int8_t * psge=(u_int8_t *)&arcmsr_cdb->u;
u_int32_t address_lo, address_hi;
union ccb * pccb=srb->pccb;
struct ccb_scsiio * pcsio= &pccb->csio;
u_int32_t arccdbsize=0x30;
memset(arcmsr_cdb, 0, sizeof(struct ARCMSR_CDB));
arcmsr_cdb->Bus=0;
arcmsr_cdb->TargetID=pccb->ccb_h.target_id;
arcmsr_cdb->LUN=pccb->ccb_h.target_lun;
arcmsr_cdb->Function=1;
arcmsr_cdb->CdbLength=(u_int8_t)pcsio->cdb_len;
arcmsr_cdb->Context=(unsigned long)arcmsr_cdb;
bcopy(pcsio->cdb_io.cdb_bytes, arcmsr_cdb->Cdb, pcsio->cdb_len);
if(nseg != 0) {
struct AdapterControlBlock *acb=srb->acb;
bus_dmasync_op_t op;
u_int32_t length, i, cdb_sgcount=0;
if((pccb->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
op=BUS_DMASYNC_PREREAD;
} else {
op=BUS_DMASYNC_PREWRITE;
arcmsr_cdb->Flags|=ARCMSR_CDB_FLAG_WRITE;
srb->srb_flags|=SRB_FLAG_WRITE;
}
bus_dmamap_sync(acb->dm_segs_dmat, srb->dm_segs_dmamap, op);
for(i=0;i<nseg;i++) {
/* Get the physical address of the current data pointer */
length=arcmsr_htole32(dm_segs[i].ds_len);
address_lo=arcmsr_htole32(dma_addr_lo32(dm_segs[i].ds_addr));
address_hi=arcmsr_htole32(dma_addr_hi32(dm_segs[i].ds_addr));
if(address_hi==0) {
struct SG32ENTRY * pdma_sg=(struct SG32ENTRY *)psge;
pdma_sg->address=address_lo;
pdma_sg->length=length;
psge += sizeof(struct SG32ENTRY);
arccdbsize += sizeof(struct SG32ENTRY);
} else {
u_int32_t sg64s_size=0, tmplength=length;
while(1) {
u_int64_t span4G, length0;
struct SG64ENTRY * pdma_sg=(struct SG64ENTRY *)psge;
span4G=(u_int64_t)address_lo + tmplength;
pdma_sg->addresshigh=address_hi;
pdma_sg->address=address_lo;
if(span4G > 0x100000000) {
/*see if cross 4G boundary*/
length0=0x100000000-address_lo;
pdma_sg->length=(u_int32_t)length0|IS_SG64_ADDR;
address_hi=address_hi+1;
address_lo=0;
tmplength=tmplength-(u_int32_t)length0;
sg64s_size += sizeof(struct SG64ENTRY);
psge += sizeof(struct SG64ENTRY);
cdb_sgcount++;
} else {
pdma_sg->length=tmplength|IS_SG64_ADDR;
sg64s_size += sizeof(struct SG64ENTRY);
psge += sizeof(struct SG64ENTRY);
break;
}
}
arccdbsize += sg64s_size;
}
cdb_sgcount++;
}
arcmsr_cdb->sgcount=(u_int8_t)cdb_sgcount;
arcmsr_cdb->DataLength=pcsio->dxfer_len;
if( arccdbsize > 256) {
arcmsr_cdb->Flags|=ARCMSR_CDB_FLAG_SGL_BSIZE;
}
}
return;
}
/*
**************************************************************************
**************************************************************************
*/
static void arcmsr_post_srb(struct AdapterControlBlock *acb, struct CommandControlBlock *srb)
{
u_int32_t cdb_shifted_phyaddr=(u_int32_t) srb->cdb_shifted_phyaddr;
struct ARCMSR_CDB * arcmsr_cdb=(struct ARCMSR_CDB *)&srb->arcmsr_cdb;
bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap,
(srb->srb_flags & SRB_FLAG_WRITE) ? BUS_DMASYNC_POSTWRITE:BUS_DMASYNC_POSTREAD);
atomic_add_int(&acb->srboutstandingcount, 1);
srb->startdone=ARCMSR_SRB_START;
if(arcmsr_cdb->Flags & ARCMSR_CDB_FLAG_SGL_BSIZE) {
CHIP_REG_WRITE32(inbound_queueport, cdb_shifted_phyaddr|ARCMSR_SRBPOST_FLAG_SGL_BSIZE);
} else {
CHIP_REG_WRITE32(inbound_queueport, cdb_shifted_phyaddr);
}
return;
}
/*
**********************************************************************
**********************************************************************
*/
static void arcmsr_post_Qbuffer(struct AdapterControlBlock *acb)
{
u_int8_t * pQbuffer;
struct QBUFFER * pwbuffer=(struct QBUFFER *)&acb->pmu->message_wbuffer;
u_int8_t * iop_data=(u_int8_t *)pwbuffer->data;
u_int32_t allxfer_len=0;
if(acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_READED) {
acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED);
while((acb->wqbuf_firstindex!=acb->wqbuf_lastindex) && (allxfer_len<124)) {
pQbuffer= &acb->wqbuffer[acb->wqbuf_firstindex];
memcpy(iop_data, pQbuffer, 1);
acb->wqbuf_firstindex++;
acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
/*if last index number set it to 0 */
iop_data++;
allxfer_len++;
}
pwbuffer->data_len=allxfer_len;
/*
** push inbound doorbell and wait reply at hwinterrupt routine for next Qbuffer post
*/
CHIP_REG_WRITE32(inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK);
}
return;
}
/*
************************************************************************
************************************************************************
*/
static void arcmsr_stop_adapter_bgrb(struct AdapterControlBlock *acb)
{
acb->acb_flags &= ~ACB_F_MSG_START_BGRB;
CHIP_REG_WRITE32(inbound_msgaddr0, ARCMSR_INBOUND_MESG0_STOP_BGRB);
if(arcmsr_wait_msgint_ready(acb)) {
printf("arcmsr%d: wait 'stop adapter rebulid' timeout \n"
, acb->pci_unit);
}
return;
}
/*
************************************************************************
************************************************************************
*/
static void arcmsr_poll(struct cam_sim * psim)
{
arcmsr_interrupt(cam_sim_softc(psim));
return;
}
/*
**********************************************************************
**********************************************************************
*/
static void arcmsr_interrupt(void *arg)
{
struct AdapterControlBlock *acb=(struct AdapterControlBlock *)arg;
struct CommandControlBlock *srb;
u_int32_t flag_srb, outbound_intstatus, outbound_doorbell;
/*
*********************************************
** check outbound intstatus
*********************************************
*/
outbound_intstatus=CHIP_REG_READ32(outbound_intstatus) & acb->outbound_int_enable;
CHIP_REG_WRITE32(outbound_intstatus, outbound_intstatus);/*clear interrupt*/
if(outbound_intstatus & ARCMSR_MU_OUTBOUND_DOORBELL_INT) {
/*
*********************************************
** DOORBELL
*********************************************
*/
outbound_doorbell=CHIP_REG_READ32(outbound_doorbell);
CHIP_REG_WRITE32(outbound_doorbell, outbound_doorbell);/*clear interrupt */
if(outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_WRITE_OK) {
struct QBUFFER * prbuffer=(struct QBUFFER *)&acb->pmu->message_rbuffer;
u_int8_t * iop_data=(u_int8_t *)prbuffer->data;
u_int8_t * pQbuffer;
u_int32_t my_empty_len, iop_len, rqbuf_firstindex, rqbuf_lastindex;
/*check this iop data if overflow my rqbuffer*/
rqbuf_lastindex=acb->rqbuf_lastindex;
rqbuf_firstindex=acb->rqbuf_firstindex;
iop_len=prbuffer->data_len;
my_empty_len=(rqbuf_firstindex-rqbuf_lastindex-1)&(ARCMSR_MAX_QBUFFER-1);
if(my_empty_len>=iop_len) {
while(iop_len > 0) {
pQbuffer= &acb->rqbuffer[acb->rqbuf_lastindex];
memcpy(pQbuffer, iop_data, 1);
acb->rqbuf_lastindex++;
acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
/*if last index number set it to 0 */
iop_data++;
iop_len--;
}
CHIP_REG_WRITE32(inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
/*signature, let IOP331 know data has been readed */
} else {
acb->acb_flags|=ACB_F_IOPDATA_OVERFLOW;
}
}
if(outbound_doorbell & ARCMSR_OUTBOUND_IOP331_DATA_READ_OK) {
acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_READED;
/*
*********************************************
*********************************************
*/
if(acb->wqbuf_firstindex!=acb->wqbuf_lastindex) {
u_int8_t * pQbuffer;
struct QBUFFER * pwbuffer=(struct QBUFFER *)&acb->pmu->message_wbuffer;
u_int8_t * iop_data=(u_int8_t *)pwbuffer->data;
u_int32_t allxfer_len=0;
acb->acb_flags &= (~ACB_F_MESSAGE_WQBUFFER_READED);
while((acb->wqbuf_firstindex!=acb->wqbuf_lastindex) && (allxfer_len<124)) {
pQbuffer= &acb->wqbuffer[acb->wqbuf_firstindex];
memcpy(iop_data, pQbuffer, 1);
acb->wqbuf_firstindex++;
acb->wqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
/*if last index number set it to 0 */
iop_data++;
allxfer_len++;
}
pwbuffer->data_len=allxfer_len;
/*
** push inbound doorbell tell iop driver data write ok
** and wait reply on next hwinterrupt for next Qbuffer post
*/
CHIP_REG_WRITE32(inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_WRITE_OK);
}
if(acb->wqbuf_firstindex==acb->wqbuf_lastindex) {
acb->acb_flags |= ACB_F_MESSAGE_WQBUFFER_CLEARED;
}
}
}
if(outbound_intstatus & ARCMSR_MU_OUTBOUND_POSTQUEUE_INT) {
int target, lun;
/*
*****************************************************************************
** areca cdb command done
*****************************************************************************
*/
bus_dmamap_sync(acb->srb_dmat, acb->srb_dmamap, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE);
while(1) {
if((flag_srb=CHIP_REG_READ32(outbound_queueport)) == 0xFFFFFFFF) {
break;/*chip FIFO no srb for completion already*/
}
/* check if command done with no error*/
srb=(struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb << 5));
/*frame must be 32 bytes aligned*/
if((srb->acb!=acb) || (srb->startdone!=ARCMSR_SRB_START)) {
if(srb->startdone==ARCMSR_SRB_ABORTED) {
printf("arcmsr%d: srb='%p' isr got aborted command \n"
, acb->pci_unit, srb);
srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
arcmsr_srb_complete(srb, 1);
continue;
}
printf("arcmsr%d: isr get an illegal srb command done"
"acb='%p' srb='%p' srbacb='%p' startdone=0x%x"
"srboutstandingcount=%d \n",
acb->pci_unit, acb, srb, srb->acb,
srb->startdone, acb->srboutstandingcount);
continue;
}
target=srb->pccb->ccb_h.target_id;
lun=srb->pccb->ccb_h.target_lun;
if((flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR)==0) {
if(acb->devstate[target][lun]==ARECA_RAID_GONE) {
acb->devstate[target][lun]=ARECA_RAID_GOOD;
}
srb->pccb->ccb_h.status |= CAM_REQ_CMP;
arcmsr_srb_complete(srb, 1);
} else {
switch(srb->arcmsr_cdb.DeviceStatus) {
case ARCMSR_DEV_SELECT_TIMEOUT: {
acb->devstate[target][lun]=ARECA_RAID_GONE;
srb->pccb->ccb_h.status |= CAM_SEL_TIMEOUT;
arcmsr_srb_complete(srb, 1);
}
break;
case ARCMSR_DEV_ABORTED:
case ARCMSR_DEV_INIT_FAIL: {
acb->devstate[target][lun]=ARECA_RAID_GONE;
srb->pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
arcmsr_srb_complete(srb, 1);
}
break;
case SCSISTAT_CHECK_CONDITION: {
acb->devstate[target][lun]=ARECA_RAID_GOOD;
arcmsr_report_sense_info(srb);
arcmsr_srb_complete(srb, 1);
}
break;
default:
printf("arcmsr%d: scsi id=%d lun=%d"
"isr get command error done,"
"but got unknow DeviceStatus=0x%x \n"
, acb->pci_unit, target, lun
,srb->arcmsr_cdb.DeviceStatus);
acb->devstate[target][lun]=ARECA_RAID_GONE;
srb->pccb->ccb_h.status |= CAM_UNCOR_PARITY;
/*unknow error or crc error just for retry*/
arcmsr_srb_complete(srb, 1);
break;
}
}
} /*drain reply FIFO*/
}
return;
}
/*
*******************************************************************************
**
*******************************************************************************
*/
static void arcmsr_iop_parking(struct AdapterControlBlock *acb)
{
if(acb!=NULL) {
/* stop adapter background rebuild */
if(acb->acb_flags & ACB_F_MSG_START_BGRB) {
arcmsr_stop_adapter_bgrb(acb);
arcmsr_flush_adapter_cache(acb);
}
}
}
/*
***********************************************************************
**
************************************************************************
*/
u_int32_t arcmsr_iop_ioctlcmd(struct AdapterControlBlock *acb, u_int32_t ioctl_cmd, caddr_t arg)
{
struct CMD_MESSAGE_FIELD * pcmdmessagefld;
u_int32_t retvalue=EINVAL;
pcmdmessagefld=(struct CMD_MESSAGE_FIELD *) arg;
if(memcmp(pcmdmessagefld->cmdmessage.Signature, "ARCMSR", 6)!=0) {
return retvalue;
}
ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
switch(ioctl_cmd) {
case ARCMSR_MESSAGE_READ_RQBUFFER: {
u_int8_t * pQbuffer;
u_int8_t * ptmpQbuffer=pcmdmessagefld->messagedatabuffer;
u_int32_t allxfer_len=0;
while((acb->rqbuf_firstindex!=acb->rqbuf_lastindex) && (allxfer_len<1031)) {
/*copy READ QBUFFER to srb*/
pQbuffer= &acb->rqbuffer[acb->rqbuf_firstindex];
memcpy(ptmpQbuffer, pQbuffer, 1);
acb->rqbuf_firstindex++;
acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
/*if last index number set it to 0 */
ptmpQbuffer++;
allxfer_len++;
}
if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
struct QBUFFER * prbuffer=(struct QBUFFER *)&acb->pmu->message_rbuffer;
u_int8_t * iop_data=(u_int8_t *)prbuffer->data;
u_int32_t iop_len;
acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
iop_len=(u_int32_t)prbuffer->data_len;
/*this iop data does no chance to make me overflow again here, so just do it*/
while(iop_len>0) {
pQbuffer= &acb->rqbuffer[acb->rqbuf_lastindex];
memcpy(pQbuffer, iop_data, 1);
acb->rqbuf_lastindex++;
acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
/*if last index number set it to 0 */
iop_data++;
iop_len--;
}
CHIP_REG_WRITE32(inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
/*signature, let IOP331 know data has been readed */
}
pcmdmessagefld->cmdmessage.Length=allxfer_len;
pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_OK;
retvalue=ARCMSR_MESSAGE_SUCCESS;
}
break;
case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
u_int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
u_int8_t * pQbuffer;
u_int8_t * ptmpuserbuffer=pcmdmessagefld->messagedatabuffer;
user_len=pcmdmessagefld->cmdmessage.Length;
/*check if data xfer length of this request will overflow my array qbuffer */
wqbuf_lastindex=acb->wqbuf_lastindex;
wqbuf_firstindex=acb->wqbuf_firstindex;
if(wqbuf_lastindex!=wqbuf_firstindex) {
arcmsr_post_Qbuffer(acb);
pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_ERROR;
} else {
my_empty_len=(wqbuf_firstindex-wqbuf_lastindex-1)&(ARCMSR_MAX_QBUFFER-1);
if(my_empty_len>=user_len) {
while(user_len>0) {
/*copy srb data to wqbuffer*/
pQbuffer= &acb->wqbuffer[acb->wqbuf_lastindex];
memcpy(pQbuffer, ptmpuserbuffer, 1);
acb->wqbuf_lastindex++;
acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
/*if last index number set it to 0 */
ptmpuserbuffer++;
user_len--;
}
/*post fist Qbuffer*/
if(acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
acb->acb_flags &=~ACB_F_MESSAGE_WQBUFFER_CLEARED;
arcmsr_post_Qbuffer(acb);
}
pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_OK;
} else {
pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_ERROR;
}
}
retvalue=ARCMSR_MESSAGE_SUCCESS;
}
break;
case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
u_int8_t * pQbuffer=acb->rqbuffer;
if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
CHIP_REG_WRITE32(inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
/*signature, let IOP331 know data has been readed */
}
acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
acb->rqbuf_firstindex=0;
acb->rqbuf_lastindex=0;
memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_OK;
retvalue=ARCMSR_MESSAGE_SUCCESS;
}
break;
case ARCMSR_MESSAGE_CLEAR_WQBUFFER:
{
u_int8_t * pQbuffer=acb->wqbuffer;
if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
CHIP_REG_WRITE32(inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
/*signature, let IOP331 know data has been readed */
}
acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED|ACB_F_MESSAGE_WQBUFFER_READED);
acb->wqbuf_firstindex=0;
acb->wqbuf_lastindex=0;
memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_OK;
retvalue=ARCMSR_MESSAGE_SUCCESS;
}
break;
case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
u_int8_t * pQbuffer;
if(acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
CHIP_REG_WRITE32(inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
/*signature, let IOP331 know data has been readed */
}
acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED
|ACB_F_MESSAGE_RQBUFFER_CLEARED
|ACB_F_MESSAGE_WQBUFFER_READED);
acb->rqbuf_firstindex=0;
acb->rqbuf_lastindex=0;
acb->wqbuf_firstindex=0;
acb->wqbuf_lastindex=0;
pQbuffer=acb->rqbuffer;
memset(pQbuffer, 0, sizeof(struct QBUFFER));
pQbuffer=acb->wqbuffer;
memset(pQbuffer, 0, sizeof(struct QBUFFER));
pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_OK;
retvalue=ARCMSR_MESSAGE_SUCCESS;
}
break;
case ARCMSR_MESSAGE_REQUEST_RETURNCODE_3F: {
pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_3F;
retvalue=ARCMSR_MESSAGE_SUCCESS;
}
break;
case ARCMSR_MESSAGE_SAY_HELLO: {
u_int8_t * hello_string="Hello! I am ARCMSR";
u_int8_t * puserbuffer=(u_int8_t *)pcmdmessagefld->messagedatabuffer;
if(memcpy(puserbuffer, hello_string, (int16_t)strlen(hello_string))) {
pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_ERROR;
ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
return ENOIOCTL;
}
pcmdmessagefld->cmdmessage.ReturnCode=ARCMSR_MESSAGE_RETURNCODE_OK;
retvalue=ARCMSR_MESSAGE_SUCCESS;
}
break;
case ARCMSR_MESSAGE_SAY_GOODBYE: {
arcmsr_iop_parking(acb);
retvalue=ARCMSR_MESSAGE_SUCCESS;
}
break;
case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE: {
arcmsr_flush_adapter_cache(acb);
retvalue=ARCMSR_MESSAGE_SUCCESS;
}
break;
}
ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
return retvalue;
}
/*
**************************************************************************
**************************************************************************
*/
struct CommandControlBlock * arcmsr_get_freesrb(struct AdapterControlBlock *acb)
{
struct CommandControlBlock *srb=NULL;
u_int32_t workingsrb_startindex, workingsrb_doneindex;
ARCMSR_LOCK_ACQUIRE(&acb->workingQ_start_lock);
workingsrb_doneindex=acb->workingsrb_doneindex;
workingsrb_startindex=acb->workingsrb_startindex;
srb=acb->srbworkingQ[workingsrb_startindex];
workingsrb_startindex++;
workingsrb_startindex %= ARCMSR_MAX_FREESRB_NUM;
if(workingsrb_doneindex!=workingsrb_startindex) {
acb->workingsrb_startindex=workingsrb_startindex;
} else {
srb=NULL;
}
ARCMSR_LOCK_RELEASE(&acb->workingQ_start_lock);
return(srb);
}
/*
**************************************************************************
**************************************************************************
*/
static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb, union ccb * pccb)
{
struct CMD_MESSAGE_FIELD * pcmdmessagefld;
int retvalue = 0, transfer_len = 0;
char *buffer;
uint32_t controlcode = (uint32_t ) pccb->csio.cdb_io.cdb_bytes[5] << 24 |
(uint32_t ) pccb->csio.cdb_io.cdb_bytes[6] << 16 |
(uint32_t ) pccb->csio.cdb_io.cdb_bytes[7] << 8 |
(uint32_t ) pccb->csio.cdb_io.cdb_bytes[8];
/* 4 bytes: Areca io control code */
if((pccb->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
buffer = pccb->csio.data_ptr;
transfer_len = pccb->csio.dxfer_len;
} else {
retvalue = ARCMSR_MESSAGE_FAIL;
goto message_out;
}
if (transfer_len > sizeof(struct CMD_MESSAGE_FIELD)) {
retvalue = ARCMSR_MESSAGE_FAIL;
goto message_out;
}
pcmdmessagefld = (struct CMD_MESSAGE_FIELD *) buffer;
switch(controlcode) {
case ARCMSR_MESSAGE_READ_RQBUFFER: {
u_int8_t *pQbuffer;
u_int8_t *ptmpQbuffer=pcmdmessagefld->messagedatabuffer;
int32_t allxfer_len = 0;
while ((acb->rqbuf_firstindex != acb->rqbuf_lastindex)
&& (allxfer_len < 1031)) {
pQbuffer = &acb->rqbuffer[acb->rqbuf_firstindex];
memcpy(ptmpQbuffer, pQbuffer, 1);
acb->rqbuf_firstindex++;
acb->rqbuf_firstindex %= ARCMSR_MAX_QBUFFER;
ptmpQbuffer++;
allxfer_len++;
}
if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
struct QBUFFER *prbuffer = (struct QBUFFER *) &acb->pmu->message_rbuffer;
u_int8_t *iop_data = (u_int8_t *)prbuffer->data;
int32_t iop_len;
acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
iop_len =(u_int32_t)prbuffer->data_len;
while (iop_len > 0) {
pQbuffer= &acb->rqbuffer[acb->rqbuf_lastindex];
memcpy(pQbuffer, iop_data, 1);
acb->rqbuf_lastindex++;
acb->rqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
iop_data++;
iop_len--;
}
CHIP_REG_WRITE32(inbound_doorbell,
ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
}
pcmdmessagefld->cmdmessage.Length = allxfer_len;
pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
retvalue=ARCMSR_MESSAGE_SUCCESS;
}
break;
case ARCMSR_MESSAGE_WRITE_WQBUFFER: {
int32_t my_empty_len, user_len, wqbuf_firstindex, wqbuf_lastindex;
u_int8_t *pQbuffer;
u_int8_t *ptmpuserbuffer=pcmdmessagefld->messagedatabuffer;
user_len = pcmdmessagefld->cmdmessage.Length;
wqbuf_lastindex = acb->wqbuf_lastindex;
wqbuf_firstindex = acb->wqbuf_firstindex;
if (wqbuf_lastindex != wqbuf_firstindex) {
arcmsr_post_Qbuffer(acb);
/* has error report sensedata */
if(&pccb->csio.sense_data) {
((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70);
/* Valid,ErrorCode */
((u_int8_t *)&pccb->csio.sense_data)[2] = 0x05;
/* FileMark,EndOfMedia,IncorrectLength,Reserved,SenseKey */
((u_int8_t *)&pccb->csio.sense_data)[7] = 0x0A;
/* AdditionalSenseLength */
((u_int8_t *)&pccb->csio.sense_data)[12] = 0x20;
/* AdditionalSenseCode */
}
retvalue = ARCMSR_MESSAGE_FAIL;
} else {
my_empty_len = (wqbuf_firstindex-wqbuf_lastindex - 1)
&(ARCMSR_MAX_QBUFFER - 1);
if (my_empty_len >= user_len) {
while (user_len > 0) {
pQbuffer = &acb->wqbuffer[acb->wqbuf_lastindex];
memcpy(pQbuffer, ptmpuserbuffer, 1);
acb->wqbuf_lastindex++;
acb->wqbuf_lastindex %= ARCMSR_MAX_QBUFFER;
ptmpuserbuffer++;
user_len--;
}
if (acb->acb_flags & ACB_F_MESSAGE_WQBUFFER_CLEARED) {
acb->acb_flags &=
~ACB_F_MESSAGE_WQBUFFER_CLEARED;
arcmsr_post_Qbuffer(acb);
}
} else {
/* has error report sensedata */
if(&pccb->csio.sense_data) {
((u_int8_t *)&pccb->csio.sense_data)[0] = (0x1 << 7 | 0x70);
/* Valid,ErrorCode */
((u_int8_t *)&pccb->csio.sense_data)[2] = 0x05;
/* FileMark,EndOfMedia,IncorrectLength,Reserved,SenseKey */
((u_int8_t *)&pccb->csio.sense_data)[7] = 0x0A;
/* AdditionalSenseLength */
((u_int8_t *)&pccb->csio.sense_data)[12] = 0x20;
/* AdditionalSenseCode */
}
retvalue = ARCMSR_MESSAGE_FAIL;
}
}
}
break;
case ARCMSR_MESSAGE_CLEAR_RQBUFFER: {
u_int8_t *pQbuffer = acb->rqbuffer;
if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
CHIP_REG_WRITE32(inbound_doorbell
, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
}
acb->acb_flags |= ACB_F_MESSAGE_RQBUFFER_CLEARED;
acb->rqbuf_firstindex = 0;
acb->rqbuf_lastindex = 0;
memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
}
break;
case ARCMSR_MESSAGE_CLEAR_WQBUFFER: {
u_int8_t *pQbuffer = acb->wqbuffer;
if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
CHIP_REG_WRITE32(inbound_doorbell
, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
}
acb->acb_flags |=
(ACB_F_MESSAGE_WQBUFFER_CLEARED |
ACB_F_MESSAGE_WQBUFFER_READED);
acb->wqbuf_firstindex = 0;
acb->wqbuf_lastindex = 0;
memset(pQbuffer, 0, ARCMSR_MAX_QBUFFER);
pcmdmessagefld->cmdmessage.ReturnCode =
ARCMSR_MESSAGE_RETURNCODE_OK;
}
break;
case ARCMSR_MESSAGE_CLEAR_ALLQBUFFER: {
u_int8_t *pQbuffer;
if (acb->acb_flags & ACB_F_IOPDATA_OVERFLOW) {
acb->acb_flags &= ~ACB_F_IOPDATA_OVERFLOW;
CHIP_REG_WRITE32(inbound_doorbell
, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
}
acb->acb_flags |=
(ACB_F_MESSAGE_WQBUFFER_CLEARED
| ACB_F_MESSAGE_RQBUFFER_CLEARED
| ACB_F_MESSAGE_WQBUFFER_READED);
acb->rqbuf_firstindex = 0;
acb->rqbuf_lastindex = 0;
acb->wqbuf_firstindex = 0;
acb->wqbuf_lastindex = 0;
pQbuffer = acb->rqbuffer;
memset(pQbuffer, 0, sizeof (struct QBUFFER));
pQbuffer = acb->wqbuffer;
memset(pQbuffer, 0, sizeof (struct QBUFFER));
pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
}
break;
case ARCMSR_MESSAGE_REQUEST_RETURNCODE_3F: {
pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_3F;
}
break;
case ARCMSR_MESSAGE_SAY_HELLO: {
int8_t * hello_string = "Hello! I am ARCMSR";
memcpy(pcmdmessagefld->messagedatabuffer, hello_string
, (int16_t)strlen(hello_string));
pcmdmessagefld->cmdmessage.ReturnCode = ARCMSR_MESSAGE_RETURNCODE_OK;
}
break;
case ARCMSR_MESSAGE_SAY_GOODBYE:
arcmsr_iop_parking(acb);
break;
case ARCMSR_MESSAGE_FLUSH_ADAPTER_CACHE:
arcmsr_flush_adapter_cache(acb);
break;
default:
retvalue = ARCMSR_MESSAGE_FAIL;
}
message_out:
return retvalue;
}
/*
*********************************************************************
*********************************************************************
*/
static void arcmsr_executesrb(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
{
struct CommandControlBlock *srb=(struct CommandControlBlock *)arg;
struct AdapterControlBlock *acb=(struct AdapterControlBlock *)srb->acb;
union ccb * pccb;
int target, lun;
pccb=srb->pccb;
target=pccb->ccb_h.target_id;
lun=pccb->ccb_h.target_lun;
if(error != 0) {
if(error != EFBIG) {
printf("arcmsr%d: unexpected error %x returned from 'bus_dmamap_load' \n"
, acb->pci_unit, error);
}
if((pccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INPROG) {
xpt_freeze_devq(pccb->ccb_h.path, /*count*/1);
pccb->ccb_h.status |= (CAM_REQ_TOO_BIG|CAM_DEV_QFRZN);
}
arcmsr_srb_complete(srb, 0);
return;
}
if(nseg > ARCMSR_MAX_SG_ENTRIES) {
pccb->ccb_h.status |= CAM_REQ_TOO_BIG;
arcmsr_srb_complete(srb, 0);
return;
}
if(acb->acb_flags & ACB_F_BUS_RESET) {
printf("arcmsr%d: bus reset and return busy \n", acb->pci_unit);
pccb->ccb_h.status |= CAM_SCSI_BUS_RESET;
arcmsr_srb_complete(srb, 0);
return;
}
if(acb->devstate[target][lun]==ARECA_RAID_GONE) {
u_int8_t block_cmd;
block_cmd=pccb->csio.cdb_io.cdb_bytes[0] & 0x0f;
if(block_cmd==0x08 || block_cmd==0x0a) {
printf("arcmsr%d:block 'read/write' command"
"with gone raid volume Cmd=%2x, TargetId=%d, Lun=%d \n"
, acb->pci_unit, block_cmd, target, lun);
pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
arcmsr_srb_complete(srb, 0);
return;
}
}
if((pccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_INPROG) {
if(nseg != 0) {
bus_dmamap_unload(acb->dm_segs_dmat, srb->dm_segs_dmamap);
}
arcmsr_srb_complete(srb, 0);
return;
}
pccb->ccb_h.status |= CAM_SIM_QUEUED;
if(acb->srboutstandingcount >= ARCMSR_MAX_OUTSTANDING_CMD) {
pccb->ccb_h.status &= ~CAM_STATUS_MASK;
pccb->ccb_h.status |= (CAM_REQUEUE_REQ|CAM_DEV_QFRZN);
acb->acb_flags |= ACB_F_CAM_DEV_QFRZN;
arcmsr_srb_complete(srb, 0);
return;
}
arcmsr_build_srb(srb, dm_segs, nseg);
arcmsr_post_srb(acb, srb);
return;
}
/*
*****************************************************************************************
*****************************************************************************************
*/
static u_int8_t arcmsr_seek_cmd2abort(union ccb * abortccb)
{
struct CommandControlBlock *srb;
struct AdapterControlBlock *acb=(struct AdapterControlBlock *) abortccb->ccb_h.arcmsr_ccbacb_ptr;
u_int32_t intmask_org, mask;
int i=0;
acb->num_aborts++;
/*
***************************************************************************
** It is the upper layer do abort command this lock just prior to calling us.
** First determine if we currently own this command.
** Start by searching the device queue. If not found
** at all, and the system wanted us to just abort the
** command return success.
***************************************************************************
*/
if(acb->srboutstandingcount!=0) {
for(i=0;i<ARCMSR_MAX_FREESRB_NUM;i++) {
srb=acb->psrb_pool[i];
if(srb->startdone==ARCMSR_SRB_START) {
if(srb->pccb==abortccb) {
srb->startdone=ARCMSR_SRB_ABORTED;
printf("arcmsr%d:scsi id=%d lun=%d abort srb '%p'"
"outstanding command \n"
, acb->pci_unit, abortccb->ccb_h.target_id
, abortccb->ccb_h.target_lun, srb);
goto abort_outstanding_cmd;
}
}
}
}
return(FALSE);
abort_outstanding_cmd:
/* do not talk to iop 331 abort command */
UDELAY(3000*1000);/*wait for 3 sec for all command done*/
/* disable all outbound interrupt */
intmask_org=CHIP_REG_READ32(outbound_intmask);
CHIP_REG_WRITE32(outbound_intmask, intmask_org|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE);
arcmsr_polling_srbdone(acb, srb);
/* enable all outbound interrupt */
mask=~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE|ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE);
CHIP_REG_WRITE32(outbound_intmask, intmask_org & mask);
return (TRUE);
}
/*
****************************************************************************
****************************************************************************
*/
static void arcmsr_bus_reset(struct AdapterControlBlock *acb)
{
int retry=0;
acb->num_resets++;
acb->acb_flags |=ACB_F_BUS_RESET;
while(acb->srboutstandingcount!=0 && retry < 400) {
arcmsr_interrupt((void *)acb);
UDELAY(25000);
retry++;
}
arcmsr_iop_reset(acb);
acb->acb_flags &= ~ACB_F_BUS_RESET;
return;
}
/*
**************************************************************************
**************************************************************************
*/
static void arcmsr_handle_virtual_command(struct AdapterControlBlock *acb,
union ccb * pccb)
{
pccb->ccb_h.status |= CAM_REQ_CMP;
switch (pccb->csio.cdb_io.cdb_bytes[0]) {
case INQUIRY: {
unsigned char inqdata[36];
char *buffer=pccb->csio.data_ptr;;
if (pccb->ccb_h.target_lun) {
pccb->ccb_h.status |= CAM_SEL_TIMEOUT;
xpt_done(pccb);
return;
}
inqdata[0] = T_PROCESSOR;
/* Periph Qualifier & Periph Dev Type */
inqdata[1] = 0;
/* rem media bit & Dev Type Modifier */
inqdata[2] = 0;
/* ISO, ECMA, & ANSI versions */
inqdata[4] = 31;
/* length of additional data */
strncpy(&inqdata[8], "Areca ", 8);
/* Vendor Identification */
strncpy(&inqdata[16], "RAID controller ", 16);
/* Product Identification */
strncpy(&inqdata[32], "R001", 4); /* Product Revision */
memcpy(buffer, inqdata, sizeof(inqdata));
xpt_done(pccb);
}
break;
case WRITE_BUFFER:
case READ_BUFFER: {
if (arcmsr_iop_message_xfer(acb, pccb)) {
pccb->ccb_h.status |= CAM_SCSI_STATUS_ERROR;
pccb->csio.scsi_status = SCSI_STATUS_CHECK_COND;
}
xpt_done(pccb);
}
break;
default:
xpt_done(pccb);
}
}
/*
*********************************************************************
*********************************************************************
*/
static void arcmsr_action(struct cam_sim * psim, union ccb * pccb)
{
struct AdapterControlBlock * acb;
acb=(struct AdapterControlBlock *) cam_sim_softc(psim);
if(acb==NULL) {
pccb->ccb_h.status |= CAM_REQ_INVALID;
xpt_done(pccb);
return;
}
switch (pccb->ccb_h.func_code) {
case XPT_SCSI_IO: {
struct CommandControlBlock *srb;
int target=pccb->ccb_h.target_id;
if(target == 16) {
/* virtual device for iop message transfer */
arcmsr_handle_virtual_command(acb, pccb);
return;
}
if((srb=arcmsr_get_freesrb(acb)) == NULL) {
pccb->ccb_h.status |= CAM_RESRC_UNAVAIL;
xpt_done(pccb);
return;
}
pccb->ccb_h.arcmsr_ccbsrb_ptr=srb;
pccb->ccb_h.arcmsr_ccbacb_ptr=acb;
srb->pccb=pccb;
if((pccb->ccb_h.flags & CAM_DIR_MASK) != CAM_DIR_NONE) {
if(!(pccb->ccb_h.flags & CAM_SCATTER_VALID)) {
/* Single buffer */
if(!(pccb->ccb_h.flags & CAM_DATA_PHYS)) {
/* Buffer is virtual */
u_int32_t error, s;
s=splsoftvm();
error = bus_dmamap_load(acb->dm_segs_dmat
, srb->dm_segs_dmamap
, pccb->csio.data_ptr
, pccb->csio.dxfer_len
, arcmsr_executesrb, srb, /*flags*/0);
if(error == EINPROGRESS) {
xpt_freeze_simq(acb->psim, 1);
pccb->ccb_h.status |= CAM_RELEASE_SIMQ;
}
splx(s);
} else {
/* Buffer is physical */
panic("arcmsr: CAM_DATA_PHYS not supported");
}
} else {
/* Scatter/gather list */
struct bus_dma_segment *segs;
if((pccb->ccb_h.flags & CAM_SG_LIST_PHYS) == 0
|| (pccb->ccb_h.flags & CAM_DATA_PHYS) != 0) {
pccb->ccb_h.status |= CAM_PROVIDE_FAIL;
xpt_done(pccb);
free(srb, M_DEVBUF);
return;
}
segs=(struct bus_dma_segment *)pccb->csio.data_ptr;
arcmsr_executesrb(srb, segs, pccb->csio.sglist_cnt, 0);
}
} else {
arcmsr_executesrb(srb, NULL, 0, 0);
}
break;
}
case XPT_TARGET_IO: {
/* target mode not yet support vendor specific commands. */
pccb->ccb_h.status |= CAM_REQ_CMP;
xpt_done(pccb);
break;
}
case XPT_PATH_INQ: {
struct ccb_pathinq *cpi= &pccb->cpi;
cpi->version_num=1;
cpi->hba_inquiry=PI_SDTR_ABLE | PI_TAG_ABLE;
cpi->target_sprt=0;
cpi->hba_misc=0;
cpi->hba_eng_cnt=0;
cpi->max_target=ARCMSR_MAX_TARGETID; /* 0-16 */
cpi->max_lun=ARCMSR_MAX_TARGETLUN; /* 0-7 */
cpi->initiator_id=ARCMSR_SCSI_INITIATOR_ID; /* 255 */
cpi->bus_id=cam_sim_bus(psim);
strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN);
strncpy(cpi->hba_vid, "ARCMSR", HBA_IDLEN);
strncpy(cpi->dev_name, cam_sim_name(psim), DEV_IDLEN);
cpi->unit_number=cam_sim_unit(psim);
cpi->transport = XPORT_SPI;
cpi->transport_version = 2;
cpi->protocol = PROTO_SCSI;
cpi->protocol_version = SCSI_REV_2;
cpi->ccb_h.status |= CAM_REQ_CMP;
xpt_done(pccb);
break;
}
case XPT_ABORT: {
union ccb *pabort_ccb;
pabort_ccb=pccb->cab.abort_ccb;
switch (pabort_ccb->ccb_h.func_code) {
case XPT_ACCEPT_TARGET_IO:
case XPT_IMMED_NOTIFY:
case XPT_CONT_TARGET_IO:
if(arcmsr_seek_cmd2abort(pabort_ccb)==TRUE) {
pabort_ccb->ccb_h.status |= CAM_REQ_ABORTED;
xpt_done(pabort_ccb);
pccb->ccb_h.status |= CAM_REQ_CMP;
} else {
xpt_print_path(pabort_ccb->ccb_h.path);
printf("Not found\n");
pccb->ccb_h.status |= CAM_PATH_INVALID;
}
break;
case XPT_SCSI_IO:
pccb->ccb_h.status |= CAM_UA_ABORT;
break;
default:
pccb->ccb_h.status |= CAM_REQ_INVALID;
break;
}
xpt_done(pccb);
break;
}
case XPT_RESET_BUS:
case XPT_RESET_DEV: {
u_int32_t i;
arcmsr_bus_reset(acb);
for (i=0; i < 500; i++) {
DELAY(1000);
}
pccb->ccb_h.status |= CAM_REQ_CMP;
xpt_done(pccb);
break;
}
case XPT_TERM_IO: {
pccb->ccb_h.status |= CAM_REQ_INVALID;
xpt_done(pccb);
break;
}
case XPT_GET_TRAN_SETTINGS: {
struct ccb_trans_settings *cts;
struct ccb_trans_settings_scsi *scsi;
struct ccb_trans_settings_spi *spi;
if(pccb->ccb_h.target_id == 16) {
pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
xpt_done(pccb);
break;
}
cts= &pccb->cts;
scsi = &cts->proto_specific.scsi;
spi = &cts->xport_specific.spi;
cts->protocol = PROTO_SCSI;
cts->protocol_version = SCSI_REV_2;
cts->transport = XPORT_SPI;
cts->transport_version = 2;
spi->flags = CTS_SPI_FLAGS_DISC_ENB;
spi->sync_period=3;
spi->sync_offset=32;
spi->bus_width=MSG_EXT_WDTR_BUS_16_BIT;
scsi->flags = CTS_SCSI_FLAGS_TAG_ENB;
spi->valid = CTS_SPI_VALID_SYNC_RATE
| CTS_SPI_VALID_SYNC_OFFSET
| CTS_SPI_VALID_BUS_WIDTH;
scsi->valid = CTS_SCSI_VALID_TQ;
pccb->ccb_h.status |= CAM_REQ_CMP;
xpt_done(pccb);
break;
}
case XPT_SET_TRAN_SETTINGS: {
pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
xpt_done(pccb);
break;
}
case XPT_CALC_GEOMETRY: {
struct ccb_calc_geometry *ccg;
u_int32_t size_mb;
u_int32_t secs_per_cylinder;
if(pccb->ccb_h.target_id == 16) {
pccb->ccb_h.status |= CAM_FUNC_NOTAVAIL;
xpt_done(pccb);
break;
}
ccg= &pccb->ccg;
if (ccg->block_size == 0) {
pccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(pccb);
break;
}
if(((1024L * 1024L)/ccg->block_size) < 0) {
pccb->ccb_h.status = CAM_REQ_INVALID;
xpt_done(pccb);
break;
}
size_mb=ccg->volume_size/((1024L * 1024L)/ccg->block_size);
if(size_mb > 1024 ) {
ccg->heads=255;
ccg->secs_per_track=63;
} else {
ccg->heads=64;
ccg->secs_per_track=32;
}
secs_per_cylinder=ccg->heads * ccg->secs_per_track;
ccg->cylinders=ccg->volume_size / secs_per_cylinder;
pccb->ccb_h.status |= CAM_REQ_CMP;
xpt_done(pccb);
break;
}
default:
pccb->ccb_h.status |= CAM_REQ_INVALID;
xpt_done(pccb);
break;
}
return;
}
/*
**********************************************************************
**********************************************************************
*/
static void arcmsr_start_adapter_bgrb(struct AdapterControlBlock *acb)
{
acb->acb_flags |= ACB_F_MSG_START_BGRB;
CHIP_REG_WRITE32(inbound_msgaddr0, ARCMSR_INBOUND_MESG0_START_BGRB);
if(arcmsr_wait_msgint_ready(acb)) {
printf("arcmsr%d: wait 'start adapter background rebulid' timeout \n", acb->pci_unit);
}
return;
}
/*
**********************************************************************
**********************************************************************
*/
static void arcmsr_polling_srbdone(struct AdapterControlBlock *acb, struct CommandControlBlock *poll_srb)
{
struct CommandControlBlock *srb;
uint32_t flag_srb, outbound_intstatus, poll_srb_done=0, poll_count=0;
int id, lun;
polling_srb_retry:
poll_count++;
outbound_intstatus=CHIP_REG_READ32(outbound_intstatus) & acb->outbound_int_enable;
CHIP_REG_WRITE32(outbound_intstatus, outbound_intstatus);/*clear interrupt*/
while(1) {
if((flag_srb=CHIP_REG_READ32(outbound_queueport))==0xFFFFFFFF) {
if(poll_srb_done) {
break;/*chip FIFO no ccb for completion already*/
} else {
UDELAY(25000);
if(poll_count > 100) {
break;
}
goto polling_srb_retry;
}
}
/* check ifcommand done with no error*/
srb=(struct CommandControlBlock *)(acb->vir2phy_offset+(flag_srb << 5));
/*frame must be 32 bytes aligned*/
if((srb->acb!=acb) || (srb->startdone!=ARCMSR_SRB_START)) {
if((srb->startdone==ARCMSR_SRB_ABORTED) && (srb==poll_srb)) {
printf("arcmsr%d: scsi id=%d lun=%d srb='%p'"
"poll command abort successfully \n"
, acb->pci_unit
, srb->pccb->ccb_h.target_id
, srb->pccb->ccb_h.target_lun, srb);
srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
arcmsr_srb_complete(srb, 1);
poll_srb_done=1;
continue;
}
printf("arcmsr%d: polling get an illegal srb command done srb='%p'"
"srboutstandingcount=%d \n"
, acb->pci_unit
, srb, acb->srboutstandingcount);
continue;
}
id=srb->pccb->ccb_h.target_id;
lun=srb->pccb->ccb_h.target_lun;
if((flag_srb & ARCMSR_SRBREPLY_FLAG_ERROR)==0) {
if(acb->devstate[id][lun]==ARECA_RAID_GONE) {
acb->devstate[id][lun]=ARECA_RAID_GOOD;
}
srb->pccb->ccb_h.status |= CAM_REQ_CMP;
arcmsr_srb_complete(srb, 1);
} else {
switch(srb->arcmsr_cdb.DeviceStatus) {
case ARCMSR_DEV_SELECT_TIMEOUT: {
acb->devstate[id][lun]=ARECA_RAID_GONE;
srb->pccb->ccb_h.status |= CAM_SEL_TIMEOUT;
arcmsr_srb_complete(srb, 1);
}
break;
case ARCMSR_DEV_ABORTED:
case ARCMSR_DEV_INIT_FAIL: {
acb->devstate[id][lun]=ARECA_RAID_GONE;
srb->pccb->ccb_h.status |= CAM_DEV_NOT_THERE;
arcmsr_srb_complete(srb, 1);
}
break;
case SCSISTAT_CHECK_CONDITION: {
acb->devstate[id][lun]=ARECA_RAID_GOOD;
arcmsr_report_sense_info(srb);
arcmsr_srb_complete(srb, 1);
}
break;
default:
printf("arcmsr%d: scsi id=%d lun=%d"
"polling and getting command error done"
", but got unknow DeviceStatus=0x%x \n"
, acb->pci_unit, id, lun, srb->arcmsr_cdb.DeviceStatus);
acb->devstate[id][lun]=ARECA_RAID_GONE;
srb->pccb->ccb_h.status |= CAM_UNCOR_PARITY;
/*unknow error or crc error just for retry*/
arcmsr_srb_complete(srb, 1);
break;
}
}
} /*drain reply FIFO*/
return;
}
/*
**********************************************************************
** get firmware miscellaneous data
**********************************************************************
*/
static void arcmsr_get_firmware_spec(struct AdapterControlBlock *acb)
{
char *acb_firm_model=acb->firm_model;
char *acb_firm_version=acb->firm_version;
size_t iop_firm_model=offsetof(struct MessageUnit,message_rwbuffer[15]); /*firm_model,15,60-67*/
size_t iop_firm_version=offsetof(struct MessageUnit,message_rwbuffer[17]); /*firm_version,17,68-83*/
int i;
CHIP_REG_WRITE32(inbound_msgaddr0, ARCMSR_INBOUND_MESG0_GET_CONFIG);
if(arcmsr_wait_msgint_ready(acb)) {
printf("arcmsr%d: wait 'get adapter firmware miscellaneous data' timeout \n"
, acb->pci_unit);
}
i=0;
while(i<8) {
*acb_firm_model=bus_space_read_1(acb->btag, acb->bhandle, iop_firm_model+i);
/* 8 bytes firm_model, 15, 60-67*/
acb_firm_model++;
i++;
}
i=0;
while(i<16) {
*acb_firm_version=bus_space_read_1(acb->btag, acb->bhandle, iop_firm_version+i);
/* 16 bytes firm_version, 17, 68-83*/
acb_firm_version++;
i++;
}
printf("ARECA RAID ADAPTER%d: %s \n", acb->pci_unit, ARCMSR_DRIVER_VERSION);
printf("ARECA RAID ADAPTER%d: FIRMWARE VERSION %s \n", acb->pci_unit, acb->firm_version);
acb->firm_request_len=CHIP_REG_READ32(message_rwbuffer[1]); /*firm_request_len, 1, 04-07*/
acb->firm_numbers_queue=CHIP_REG_READ32(message_rwbuffer[2]); /*firm_numbers_queue, 2, 08-11*/
acb->firm_sdram_size=CHIP_REG_READ32(message_rwbuffer[3]); /*firm_sdram_size, 3, 12-15*/
acb->firm_ide_channels=CHIP_REG_READ32(message_rwbuffer[4]); /*firm_ide_channels, 4, 16-19*/
return;
}
/*
**********************************************************************
** start background rebulid
**********************************************************************
*/
static void arcmsr_iop_init(struct AdapterControlBlock *acb)
{
u_int32_t intmask_org, mask, outbound_doorbell, firmware_state=0;
do {
firmware_state=CHIP_REG_READ32(outbound_msgaddr1);
} while((firmware_state & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK)==0);
intmask_org=CHIP_REG_READ32(outbound_intmask)|ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE;
CHIP_REG_WRITE32(outbound_intmask, intmask_org);
intmask_org=CHIP_REG_READ32(outbound_intmask)|ARCMSR_MU_OUTBOUND_MESSAGE0_INTMASKENABLE;
arcmsr_get_firmware_spec(acb);
arcmsr_start_adapter_bgrb(acb);
/* clear Qbuffer if door bell ringed */
outbound_doorbell=CHIP_REG_READ32(outbound_doorbell);
CHIP_REG_WRITE32(outbound_doorbell, outbound_doorbell);/*clear interrupt */
CHIP_REG_WRITE32(inbound_doorbell, ARCMSR_INBOUND_DRIVER_DATA_READ_OK);
/* enable outbound Post Queue, outbound message0, outbell doorbell Interrupt */
mask=~(ARCMSR_MU_OUTBOUND_POSTQUEUE_INTMASKENABLE|ARCMSR_MU_OUTBOUND_DOORBELL_INTMASKENABLE);
CHIP_REG_WRITE32(outbound_intmask, intmask_org & mask);
acb->outbound_int_enable = ~(intmask_org & mask) & 0x000000ff;
acb->acb_flags |=ACB_F_IOP_INITED;
return;
}
/*
**********************************************************************
**********************************************************************
*/
static void arcmsr_map_freesrb(void *arg, bus_dma_segment_t *segs, int nseg, int error)
{
struct AdapterControlBlock *acb=arg;
struct CommandControlBlock *srb_tmp;
u_int8_t * dma_memptr;
u_int32_t i, srb_phyaddr_hi32;
unsigned long srb_phyaddr=(unsigned long)segs->ds_addr;
dma_memptr=acb->uncacheptr;
srb_phyaddr=segs->ds_addr; /* We suppose bus_addr_t high part always 0 here*/
if(((unsigned long)dma_memptr & 0x1F)!=0) {
dma_memptr=dma_memptr+(0x20-((unsigned long)dma_memptr & 0x1F));
srb_phyaddr=srb_phyaddr+(0x20-((unsigned long)srb_phyaddr & 0x1F));
}
srb_tmp=(struct CommandControlBlock *)dma_memptr;
for(i=0;i<ARCMSR_MAX_FREESRB_NUM;i++) {
/*srb address must 32 (0x20) boundary*/
if(((unsigned long)srb_tmp & 0x1F)==0) {
if(bus_dmamap_create(acb->dm_segs_dmat, /*flags*/0, &srb_tmp->dm_segs_dmamap)!=0) {
acb->acb_flags |= ACB_F_MAPFREESRB_FAILD;
printf("arcmsr%d: srb dmamap bus_dmamap_create error\n", acb->pci_unit);
return;
}
srb_tmp->cdb_shifted_phyaddr=srb_phyaddr >> 5;
srb_tmp->acb=acb;
acb->srbworkingQ[i]=acb->psrb_pool[i]=srb_tmp;
srb_phyaddr=srb_phyaddr+sizeof(struct CommandControlBlock);
} else {
acb->acb_flags |= ACB_F_MAPFREESRB_FAILD;
printf("arcmsr%d: dma_memptr=%p i=%d"
"this srb cross 32 bytes boundary ignored srb_tmp=%p \n"
, acb->pci_unit, dma_memptr, i, srb_tmp);
return;
}
srb_tmp++;
}
acb->vir2phy_offset=(unsigned long)srb_tmp-(unsigned long)srb_phyaddr;
/*
********************************************************************
** here we need to tell iop 331 our freesrb.HighPart
** if freesrb.HighPart is not zero
********************************************************************
*/
srb_phyaddr_hi32=(uint32_t) ((srb_phyaddr>>16)>>16);
if(srb_phyaddr_hi32!=0) {
CHIP_REG_WRITE32(message_rwbuffer[0], ARCMSR_SIGNATURE_SET_CONFIG);
CHIP_REG_WRITE32(message_rwbuffer[1], srb_phyaddr_hi32);
CHIP_REG_WRITE32(inbound_msgaddr0, ARCMSR_INBOUND_MESG0_SET_CONFIG);
if(arcmsr_wait_msgint_ready(acb)) {
printf("arcmsr%d: 'set srb high part physical address' timeout \n", acb->pci_unit);
}
}
return;
}
/*
************************************************************************
**
**
************************************************************************
*/
static void arcmsr_free_resource(struct AdapterControlBlock *acb)
{
/* remove the control device */
if(acb->ioctl_dev != NULL) {
destroy_dev(acb->ioctl_dev);
}
bus_dmamap_unload(acb->srb_dmat, acb->srb_dmamap);
bus_dmamap_destroy(acb->srb_dmat, acb->srb_dmamap);
bus_dma_tag_destroy(acb->srb_dmat);
bus_dma_tag_destroy(acb->dm_segs_dmat);
bus_dma_tag_destroy(acb->parent_dmat);
return;
}
/*
************************************************************************
************************************************************************
*/
static u_int32_t arcmsr_initialize(device_t dev)
{
struct AdapterControlBlock *acb=device_get_softc(dev);
u_int32_t intmask_org, rid=PCIR_BAR(0);
vm_offset_t mem_base;
u_int16_t pci_command;
int i, j;
#if __FreeBSD_version >= 502010
if(bus_dma_tag_create( /*parent*/ NULL,
/*alignemnt*/ 1,
/*boundary*/ 0,
/*lowaddr*/ BUS_SPACE_MAXADDR,
/*highaddr*/ BUS_SPACE_MAXADDR,
/*filter*/ NULL,
/*filterarg*/ NULL,
/*maxsize*/ BUS_SPACE_MAXSIZE_32BIT,
/*nsegments*/ BUS_SPACE_UNRESTRICTED,
/*maxsegsz*/ BUS_SPACE_MAXSIZE_32BIT,
/*flags*/ 0,
/*lockfunc*/ NULL,
/*lockarg*/ NULL,
&acb->parent_dmat) != 0)
#else
if(bus_dma_tag_create( /*parent*/ NULL,
/*alignemnt*/ 1,
/*boundary*/ 0,
/*lowaddr*/ BUS_SPACE_MAXADDR,
/*highaddr*/ BUS_SPACE_MAXADDR,
/*filter*/ NULL,
/*filterarg*/ NULL,
/*maxsize*/ BUS_SPACE_MAXSIZE_32BIT,
/*nsegments*/ BUS_SPACE_UNRESTRICTED,
/*maxsegsz*/ BUS_SPACE_MAXSIZE_32BIT,
/*flags*/ 0,
&acb->parent_dmat) != 0)
#endif
{
printf("arcmsr%d: parent_dmat bus_dma_tag_create failure!\n", acb->pci_unit);
return ENOMEM;
}
/* Create a single tag describing a region large enough to hold all of the s/g lists we will need. */
#if __FreeBSD_version >= 502010
if(bus_dma_tag_create( /*parent_dmat*/ acb->parent_dmat,
/*alignment*/ 1,
/*boundary*/ 0,
/*lowaddr*/ BUS_SPACE_MAXADDR,
/*highaddr*/ BUS_SPACE_MAXADDR,
/*filter*/ NULL,
/*filterarg*/ NULL,
/*maxsize*/ MAXBSIZE,
/*nsegments*/ ARCMSR_MAX_SG_ENTRIES,
/*maxsegsz*/ BUS_SPACE_MAXSIZE_32BIT,
/*flags*/ 0,
/*lockfunc*/ busdma_lock_mutex,
/*lockarg*/ &Giant,
&acb->dm_segs_dmat) != 0)
#else
if(bus_dma_tag_create( /*parent_dmat*/ acb->parent_dmat,
/*alignment*/ 1,
/*boundary*/ 0,
/*lowaddr*/ BUS_SPACE_MAXADDR,
/*highaddr*/ BUS_SPACE_MAXADDR,
/*filter*/ NULL,
/*filterarg*/ NULL,
/*maxsize*/ MAXBSIZE,
/*nsegments*/ ARCMSR_MAX_SG_ENTRIES,
/*maxsegsz*/ BUS_SPACE_MAXSIZE_32BIT,
/*flags*/ 0,
&acb->dm_segs_dmat) != 0)
#endif
{
bus_dma_tag_destroy(acb->parent_dmat);
printf("arcmsr%d: dm_segs_dmat bus_dma_tag_create failure!\n", acb->pci_unit);
return ENOMEM;
}
/* DMA tag for our srb structures.... Allocate the freesrb memory */
#if __FreeBSD_version >= 502010
if(bus_dma_tag_create( /*parent_dmat*/ acb->parent_dmat,
/*alignment*/ 1,
/*boundary*/ 0,
/*lowaddr*/ BUS_SPACE_MAXADDR_32BIT,
/*highaddr*/ BUS_SPACE_MAXADDR,
/*filter*/ NULL,
/*filterarg*/ NULL,
/*maxsize*/ ARCMSR_SRBS_POOL_SIZE,
/*nsegments*/ 1,
/*maxsegsz*/ BUS_SPACE_MAXSIZE_32BIT,
/*flags*/ 0,
/*lockfunc*/ NULL,
/*lockarg*/ NULL,
&acb->srb_dmat) != 0)
#else
if(bus_dma_tag_create( /*parent_dmat*/ acb->parent_dmat,
/*alignment*/ 1,
/*boundary*/ 0,
/*lowaddr*/ BUS_SPACE_MAXADDR_32BIT,
/*highaddr*/ BUS_SPACE_MAXADDR,
/*filter*/ NULL,
/*filterarg*/ NULL,
/*maxsize*/ ARCMSR_SRBS_POOL_SIZE,
/*nsegments*/ 1,
/*maxsegsz*/ BUS_SPACE_MAXSIZE_32BIT,
/*flags*/ 0,
&acb->srb_dmat) != 0)
#endif
{
bus_dma_tag_destroy(acb->dm_segs_dmat);
bus_dma_tag_destroy(acb->parent_dmat);
printf("arcmsr%d: srb_dmat bus_dma_tag_create failure!\n", acb->pci_unit);
return ENXIO;
}
/* Allocation for our srbs */
if(bus_dmamem_alloc(acb->srb_dmat, (void **)&acb->uncacheptr
, BUS_DMA_WAITOK | BUS_DMA_COHERENT, &acb->srb_dmamap) != 0) {
bus_dma_tag_destroy(acb->srb_dmat);
bus_dma_tag_destroy(acb->dm_segs_dmat);
bus_dma_tag_destroy(acb->parent_dmat);
printf("arcmsr%d: srb_dmat bus_dmamem_alloc failure!\n", acb->pci_unit);
return ENXIO;
}
/* And permanently map them */
if(bus_dmamap_load(acb->srb_dmat, acb->srb_dmamap, acb->uncacheptr
, ARCMSR_SRBS_POOL_SIZE, arcmsr_map_freesrb, acb, /*flags*/0)) {
bus_dma_tag_destroy(acb->srb_dmat);
bus_dma_tag_destroy(acb->dm_segs_dmat);
bus_dma_tag_destroy(acb->parent_dmat);
printf("arcmsr%d: srb_dmat bus_dmamap_load failure!\n", acb->pci_unit);
return ENXIO;
}
pci_command=pci_read_config(dev, PCIR_COMMAND, 2);
pci_command |= PCIM_CMD_BUSMASTEREN;
pci_command |= PCIM_CMD_PERRESPEN;
pci_command |= PCIM_CMD_MWRICEN;
/* Enable Busmaster/Mem */
pci_command |= PCIM_CMD_MEMEN;
pci_write_config(dev, PCIR_COMMAND, pci_command, 2);
acb->sys_res_arcmsr=bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 0ul, ~0ul, 0x1000, RF_ACTIVE);
if(acb->sys_res_arcmsr == NULL) {
arcmsr_free_resource(acb);
printf("arcmsr%d: bus_alloc_resource failure!\n", acb->pci_unit);
return ENOMEM;
}
if(rman_get_start(acb->sys_res_arcmsr) <= 0) {
arcmsr_free_resource(acb);
printf("arcmsr%d: rman_get_start failure!\n", acb->pci_unit);
return ENXIO;
}
mem_base=(vm_offset_t) rman_get_virtual(acb->sys_res_arcmsr);
if(mem_base==0) {
arcmsr_free_resource(acb);
printf("arcmsr%d: rman_get_virtual failure!\n", acb->pci_unit);
return ENXIO;
}
if(acb->acb_flags & ACB_F_MAPFREESRB_FAILD) {
arcmsr_free_resource(acb);
printf("arcmsr%d: map free srb failure!\n", acb->pci_unit);
return ENXIO;
}
acb->btag=rman_get_bustag(acb->sys_res_arcmsr);
acb->bhandle=rman_get_bushandle(acb->sys_res_arcmsr);
acb->pmu=(struct MessageUnit *)mem_base;
acb->acb_flags |= (ACB_F_MESSAGE_WQBUFFER_CLEARED
|ACB_F_MESSAGE_RQBUFFER_CLEARED
|ACB_F_MESSAGE_WQBUFFER_READED);
acb->acb_flags &= ~ACB_F_SCSISTOPADAPTER;
/*
********************************************************************
** init raid volume state
********************************************************************
*/
for(i=0;i<ARCMSR_MAX_TARGETID;i++) {
for(j=0;j<ARCMSR_MAX_TARGETLUN;j++) {
acb->devstate[i][j]=ARECA_RAID_GOOD;
}
}
/* disable iop all outbound interrupt */
intmask_org=CHIP_REG_READ32(outbound_intmask);
CHIP_REG_WRITE32(outbound_intmask, intmask_org|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE);
arcmsr_iop_init(acb);
return(0);
}
/*
************************************************************************
************************************************************************
*/
static u_int32_t arcmsr_attach(device_t dev)
{
struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
u_int32_t unit=device_get_unit(dev);
struct ccb_setasync csa;
struct cam_devq *devq; /* Device Queue to use for this SIM */
struct resource *irqres;
int rid;
if(acb == NULL) {
printf("arcmsr%d: cannot allocate softc\n", unit);
return (ENOMEM);
}
bzero(acb, sizeof(struct AdapterControlBlock));
if(arcmsr_initialize(dev)) {
printf("arcmsr%d: initialize failure!\n", unit);
return ENXIO;
}
/* After setting up the adapter, map our interrupt */
rid=0;
irqres=bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0ul, ~0ul, 1, RF_SHAREABLE | RF_ACTIVE);
if(irqres == NULL ||
bus_setup_intr(dev, irqres, INTR_TYPE_CAM|INTR_ENTROPY|INTR_MPSAFE
, NULL, arcmsr_interrupt, acb, &acb->ih)) {
arcmsr_free_resource(acb);
printf("arcmsr%d: unable to register interrupt handler!\n", unit);
return ENXIO;
}
acb->irqres=irqres;
acb->pci_dev=dev;
acb->pci_unit=unit;
/*
* Now let the CAM generic SCSI layer find the SCSI devices on
* the bus * start queue to reset to the idle loop. *
* Create device queue of SIM(s) * (MAX_START_JOB - 1) :
* max_sim_transactions
*/
devq=cam_simq_alloc(ARCMSR_MAX_START_JOB);
if(devq == NULL) {
arcmsr_free_resource(acb);
bus_release_resource(dev, SYS_RES_IRQ, 0, acb->irqres);
printf("arcmsr%d: cam_simq_alloc failure!\n", unit);
return ENXIO;
}
acb->psim=cam_sim_alloc(arcmsr_action, arcmsr_poll
, "arcmsr", acb, unit, 1, ARCMSR_MAX_OUTSTANDING_CMD, devq);
if(acb->psim == NULL) {
arcmsr_free_resource(acb);
bus_release_resource(dev, SYS_RES_IRQ, 0, acb->irqres);
cam_simq_free(devq);
printf("arcmsr%d: cam_sim_alloc failure!\n", unit);
return ENXIO;
}
if(xpt_bus_register(acb->psim, 0) != CAM_SUCCESS) {
arcmsr_free_resource(acb);
bus_release_resource(dev, SYS_RES_IRQ, 0, acb->irqres);
cam_sim_free(acb->psim, /*free_devq*/TRUE);
printf("arcmsr%d: xpt_bus_register failure!\n", unit);
return ENXIO;
}
if(xpt_create_path(&acb->ppath, /* periph */ NULL
, cam_sim_path(acb->psim)
, CAM_TARGET_WILDCARD
, CAM_LUN_WILDCARD) != CAM_REQ_CMP) {
arcmsr_free_resource(acb);
bus_release_resource(dev, SYS_RES_IRQ, 0, acb->irqres);
xpt_bus_deregister(cam_sim_path(acb->psim));
cam_sim_free(acb->psim, /* free_simq */ TRUE);
printf("arcmsr%d: xpt_create_path failure!\n", unit);
return ENXIO;
}
ARCMSR_LOCK_INIT(&acb->workingQ_done_lock, "arcmsr done working Q lock");
ARCMSR_LOCK_INIT(&acb->workingQ_start_lock, "arcmsr start working Q lock");
ARCMSR_LOCK_INIT(&acb->qbuffer_lock, "arcmsr Q buffer lock");
/*
****************************************************
*/
xpt_setup_ccb(&csa.ccb_h, acb->ppath, /*priority*/5);
csa.ccb_h.func_code=XPT_SASYNC_CB;
csa.event_enable=AC_FOUND_DEVICE|AC_LOST_DEVICE;
csa.callback=arcmsr_async;
csa.callback_arg=acb->psim;
xpt_action((union ccb *)&csa);
/* Create the control device. */
acb->ioctl_dev=make_dev(&arcmsr_cdevsw
, unit
, UID_ROOT
, GID_WHEEL /* GID_OPERATOR */
, S_IRUSR | S_IWUSR
, "arcmsr%d", unit);
#if __FreeBSD_version < 503000
acb->ioctl_dev->si_drv1=acb;
#endif
#if __FreeBSD_version > 500005
(void)make_dev_alias(acb->ioctl_dev, "arc%d", unit);
#endif
return 0;
}
/*
************************************************************************
************************************************************************
*/
static u_int32_t arcmsr_probe(device_t dev)
{
u_int32_t id;
static char buf[256];
char *type;
int raid6 = 1;
if (pci_get_vendor(dev) != PCI_VENDOR_ID_ARECA) {
return (ENXIO);
}
switch(id=pci_get_devid(dev)) {
case PCIDevVenIDARC1110:
case PCIDevVenIDARC1210:
raid6 = 0;
/*FALLTHRU*/
case PCIDevVenIDARC1120:
case PCIDevVenIDARC1130:
case PCIDevVenIDARC1160:
case PCIDevVenIDARC1170:
case PCIDevVenIDARC1220:
case PCIDevVenIDARC1230:
case PCIDevVenIDARC1260:
case PCIDevVenIDARC1270:
case PCIDevVenIDARC1280:
type = "SATA";
break;
case PCIDevVenIDARC1380:
case PCIDevVenIDARC1381:
case PCIDevVenIDARC1680:
case PCIDevVenIDARC1681:
type = "SAS";
break;
default:
type = "X-TYPE";
break;
}
sprintf(buf, "Areca %s Host Adapter RAID Controller %s\n", type, raid6 ? "(RAID6 capable)" : "");
device_set_desc_copy(dev, buf);
return 0;
}
/*
************************************************************************
************************************************************************
*/
static void arcmsr_shutdown(device_t dev)
{
u_int32_t i, poll_count=0;
u_int32_t intmask_org;
struct CommandControlBlock *srb;
struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
/* stop adapter background rebuild */
arcmsr_stop_adapter_bgrb(acb);
arcmsr_flush_adapter_cache(acb);
/* disable all outbound interrupt */
intmask_org=CHIP_REG_READ32(outbound_intmask);
CHIP_REG_WRITE32(outbound_intmask, (intmask_org|ARCMSR_MU_OUTBOUND_ALL_INTMASKENABLE));
/* abort all outstanding command */
acb->acb_flags |= ACB_F_SCSISTOPADAPTER;
acb->acb_flags &= ~ACB_F_IOP_INITED;
if(acb->srboutstandingcount!=0) {
while((acb->srboutstandingcount!=0) && (poll_count < 256)) {
arcmsr_interrupt((void *)acb);
UDELAY(25000);
poll_count++;
}
if(acb->srboutstandingcount!=0) {
arcmsr_abort_allcmd(acb);
/*clear all outbound posted Q*/
for(i=0;i<ARCMSR_MAX_OUTSTANDING_CMD;i++) {
CHIP_REG_READ32(outbound_queueport);
}
for(i=0;i<ARCMSR_MAX_FREESRB_NUM;i++) {
srb=acb->psrb_pool[i];
if(srb->startdone==ARCMSR_SRB_START) {
srb->startdone=ARCMSR_SRB_ABORTED;
srb->pccb->ccb_h.status |= CAM_REQ_ABORTED;
arcmsr_srb_complete(srb, 1);
}
}
}
}
atomic_set_int(&acb->srboutstandingcount, 0);
acb->workingsrb_doneindex=0;
acb->workingsrb_startindex=0;
return;
}
/*
************************************************************************
************************************************************************
*/
static u_int32_t arcmsr_detach(device_t dev)
{
struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
arcmsr_shutdown(dev);
arcmsr_free_resource(acb);
bus_release_resource(dev, SYS_RES_MEMORY, PCIR_BAR(0), acb->sys_res_arcmsr);
bus_teardown_intr(dev, acb->irqres, acb->ih);
bus_release_resource(dev, SYS_RES_IRQ, 0, acb->irqres);
xpt_async(AC_LOST_DEVICE, acb->ppath, NULL);
xpt_free_path(acb->ppath);
xpt_bus_deregister(cam_sim_path(acb->psim));
cam_sim_free(acb->psim, TRUE);
return (0);
}
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