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5878cbeccf
freebsd-skq/sys/dev/arcmsr/arcmsr.c
Scott Long 5878cbeccf Make the driver fully MPSAFE. This fixes some serious locking problems 
that could cause panics and corruption under moderate load.  Many thanks
to Matt Reimer, Tom McDonald, and the rest of the guys at VPOP.net for
their help in identifying and testing this.

Approved by: re
2007-07-31 20:16:50 +00:00

2335 lines
77 KiB
C
Raw Blame History

/*
*****************************************************************************************
** 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_DESTROY(l) mtx_destroy(l)
#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_DESTROY(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);
}
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;
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_intr_handler(void *arg)
{
struct AdapterControlBlock *acb=(struct AdapterControlBlock *)arg;
ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
arcmsr_interrupt(acb);
ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
}
/*
**********************************************************************
**********************************************************************
*/
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;
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;
}
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) {
pccb->ccb_h.status |= CAM_REQ_TOO_BIG;
}
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;
}
if(acb->srboutstandingcount >= ARCMSR_MAX_OUTSTANDING_CMD) {
xpt_freeze_simq(acb->psim, 1);
pccb->ccb_h.status = CAM_REQUEUE_REQ;
acb->acb_flags |= ACB_F_CAM_DEV_QFRZN;
arcmsr_srb_complete(srb, 0);
return;
}
pccb->ccb_h.status |= CAM_SIM_QUEUED;
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*/ &acb->qbuffer_lock,
&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);
}
ARCMSR_LOCK_INIT(&acb->qbuffer_lock, "arcmsr Q buffer lock");
if(arcmsr_initialize(dev)) {
printf("arcmsr%d: initialize failure!\n", unit);
ARCMSR_LOCK_DESTROY(&acb->qbuffer_lock);
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_intr_handler, acb, &acb->ih)) {
arcmsr_free_resource(acb);
ARCMSR_LOCK_DESTROY(&acb->qbuffer_lock);
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);
ARCMSR_LOCK_DESTROY(&acb->qbuffer_lock);
printf("arcmsr%d: cam_simq_alloc failure!\n", unit);
return ENXIO;
}
acb->psim=cam_sim_alloc(arcmsr_action, arcmsr_poll,
"arcmsr", acb, unit, &acb->qbuffer_lock, 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);
ARCMSR_LOCK_DESTROY(&acb->qbuffer_lock);
printf("arcmsr%d: cam_sim_alloc failure!\n", unit);
return ENXIO;
}
ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
if(xpt_bus_register(acb->psim, dev, 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);
ARCMSR_LOCK_DESTROY(&acb->qbuffer_lock);
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);
ARCMSR_LOCK_DESTROY(&acb->qbuffer_lock);
printf("arcmsr%d: xpt_create_path failure!\n", unit);
return ENXIO;
}
/*
****************************************************
*/
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);
ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
/* 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_LOCK_ACQUIRE(&acb->qbuffer_lock);
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;
ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
return;
}
/*
************************************************************************
************************************************************************
*/
static u_int32_t arcmsr_detach(device_t dev)
{
struct AdapterControlBlock *acb=(struct AdapterControlBlock *)device_get_softc(dev);
bus_teardown_intr(dev, acb->irqres, acb->ih);
arcmsr_shutdown(dev);
arcmsr_free_resource(acb);
bus_release_resource(dev, SYS_RES_MEMORY, PCIR_BAR(0), acb->sys_res_arcmsr);
bus_release_resource(dev, SYS_RES_IRQ, 0, acb->irqres);
ARCMSR_LOCK_ACQUIRE(&acb->qbuffer_lock);
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);
ARCMSR_LOCK_RELEASE(&acb->qbuffer_lock);
ARCMSR_LOCK_DESTROY(&acb->qbuffer_lock);
return (0);
}
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