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freebsd-src/sys/i386/scsi/advansys.c
Peter Wemm 6875d25465 Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not 
ready for it yet.
1997-02-22 09:48:43 +00:00

784 lines
20 KiB
C
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/*
* Generic driver for the Advanced Systems Inc. SCSI controllers
* Product specific probe and attach routines can be found in:
*
* i386/isa/adv_isa.c ABP5140, ABP542, ABP5150, ABP842, ABP852
*
* Copyright (c) 1996 Justin T. Gibbs.
* 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 immediately at the beginning of the file, without modification,
* 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 AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id$
*/
/*
* Ported from:
* advansys.c - Linux Host Driver for AdvanSys SCSI Adapters
*
* Copyright (c) 1995-1996 Advanced System Products, Inc.
* All Rights Reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that redistributions of source
* code retain the above copyright notice and this comment without
* modification.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/buf.h>
#include <machine/clock.h>
#include <scsi/scsi_all.h>
#include <scsi/scsi_message.h>
#include <scsi/scsiconf.h>
#include <vm/vm.h>
#include <vm/vm_param.h>
#include <vm/pmap.h>
#include <i386/scsi/advansys.h>
static void adv_scsi_cmd __P((struct scsi_xfer *xs));
static void advminphys __P((struct buf *bp));
static timeout_t
adv_timeout;
static int adv_qdone __P((struct adv_softc *adv));
static void adv_done __P((struct adv_softc *adv,
struct adv_q_done_info *qdonep));
static int adv_poll __P((struct adv_softc *ahc, struct scsi_xfer *xs));
struct adv_softc *advsoftcs[NADV]; /* XXX Config should handle this */
static struct scsi_adapter adv_switch =
{
adv_scsi_cmd,
advminphys,
NULL,
NULL,
"adv"
};
static void
adv_scsi_cmd(xs)
struct scsi_xfer *xs;
{
struct adv_softc *adv;
struct adv_scsi_q scsiq;
struct adv_sg_head sghead;
SC_DEBUG(xs->sc_link, SDEV_DB2, ("adv_scsi_cmd\n"));
adv = (struct adv_softc *)xs->sc_link->scsibus->adpt_link.adpt_softc;
/*
* Build up the request
*/
scsiq.q1.cntl = 0;
scsiq.q1.sg_queue_cnt = 0;
scsiq.q1.status = 0;
scsiq.q1.q_no = 0;
scsiq.q1.target_id = ADV_TID_TO_TARGET_ID(xs->sc_link->target);
scsiq.q1.target_lun = xs->sc_link->lun;
scsiq.q1.sense_addr = (u_int32_t)vtophys(&xs->sense);
scsiq.q1.sense_len = sizeof(xs->sense);
scsiq.q1.data_cnt = 0;
scsiq.q1.data_addr = 0;
scsiq.q1.user_def = 0;
scsiq.q2.xs_ptr = (u_int32_t)xs;
scsiq.q2.target_ix = ADV_TIDLUN_TO_IX(xs->sc_link->target, xs->sc_link->lun);
scsiq.q2.flag = 0;
scsiq.q2.cdb_len = xs->cmdlen;
scsiq.q2.tag_code = xs->tag_type;
scsiq.q2.vm_id = 0;
scsiq.sg_head = NULL;
scsiq.cdbptr = &xs->cmd;
if (xs->datalen) {
/*
* Determin the number of segments needed for this
* transfer. We should only use SG if we need more
* than one.
*/
int seg;
u_int32_t datalen;
vm_offset_t vaddr;
u_int32_t paddr;
u_int32_t nextpaddr;
struct adv_sg_entry *sg;
seg = 0;
datalen = xs->datalen;
vaddr = (vm_offset_t)xs->data;
paddr = vtophys(vaddr);
sg = &sghead.sg_list[0];
while ((datalen > 0) && (seg < ADV_MAX_SG_LIST)) {
/* put in the base address and length */
sg->addr = paddr;
sg->bytes = 0;
/* do it at least once */
nextpaddr = paddr;
while ((datalen > 0) && (paddr == nextpaddr)) {
u_int32_t size;
/*
* This page is contiguous (physically)
* with the the last, just extend the
* length
*/
/* how far to the end of the page */
nextpaddr = (paddr & (~PAGE_MASK)) + PAGE_SIZE;
/*
* Compute the maximum size
*/
size = nextpaddr - paddr;
if (size > datalen)
size = datalen;
sg->bytes += size;
vaddr += size;
datalen -= size;
if (datalen > 0)
paddr = vtophys(vaddr);
}
/*
* next page isn't contiguous, finish the seg
*/
seg++;
sg++;
}
if (seg > 1) {
scsiq.q1.cntl |= QC_SG_HEAD;
scsiq.sg_head = &sghead;
sghead.entry_cnt = sghead.entry_to_copy = seg;
sghead.res = 0;
}
scsiq.q1.data_addr = sghead.sg_list[0].addr;
scsiq.q1.data_cnt = sghead.sg_list[0].bytes;
}
if (adv_execute_scsi_queue(adv, &scsiq) != 0) {
xs->error = XS_QUEUE_RESOURCE_SHORTAGE;
scsi_done(xs);
} else if ((xs->flags & SCSI_POLL) != 0) {
/*
* If we can't use interrupts, poll for completion
*/
int s;
s = splbio();
if (adv_poll(adv, xs)) {
if (!(xs->flags & SCSI_SILENT))
printf("cmd fail\n");
adv_timeout(xs);
}
splx(s);
}
}
static void
advminphys(bp)
struct buf *bp;
{
if (bp->b_bcount > ((ADV_MAX_SG_LIST - 1) * PAGE_SIZE))
bp->b_bcount = ((ADV_MAX_SG_LIST - 1) * PAGE_SIZE);
}
static void
adv_timeout(arg)
void *arg;
{
printf("adv: Ooops. Had a timeout\n");
}
struct adv_softc *
adv_alloc(unit, iobase)
int unit;
u_long iobase;
{
struct adv_softc *adv;
int i;
if (unit >= NADV) {
printf("adv: unit number (%d) too high\n", unit);
return NULL;
}
/*
* Allocate a storage area for us
*/
if (advsoftcs[unit]) {
printf("adv%d: memory already allocated\n", unit);
return NULL;
}
adv = malloc(sizeof(struct adv_softc), M_DEVBUF, M_NOWAIT);
if (!adv) {
printf("adv%d: cannot malloc!\n", unit);
return NULL;
}
bzero(adv, sizeof(struct adv_softc));
advsoftcs[unit] = adv;
adv->unit = unit;
adv->iobase = iobase;
/* Set reasonable defaults incase we can't read the EEPROM */
adv->max_openings = ADV_DEF_MAX_TOTAL_QNG;
adv->start_motor = TARGET_BIT_VECTOR_SET;
adv->disc_enable = TARGET_BIT_VECTOR_SET;
adv->cmd_qng_enabled = TARGET_BIT_VECTOR_SET;
adv->scsi_id = 7;
for (i = 0; i <= ADV_MAX_TID; i++)
adv->sdtr_data[i] = ADV_DEF_SDTR_OFFSET | (ADV_DEF_SDTR_INDEX << 4);
return(adv);
}
void
adv_free(adv)
struct adv_softc *adv;
{
if (adv->sense_buffers != NULL)
free(adv->sense_buffers, M_DEVBUF);
free(adv, M_DEVBUF);
}
int
adv_init(adv)
struct adv_softc *adv;
{
struct adv_eeprom_config eeprom_config;
int checksum, i;
u_int16_t config_lsw;
u_int16_t config_msw;
adv_get_board_type(adv);
/*
* Stop script execution.
*/
adv_write_lram_16(adv, ADV_HALTCODE_W, 0x00FE);
adv_stop_execution(adv);
adv_reset_chip_and_scsi_bus(adv);
/*
* The generic SCSI code does a minimum delay for us
* already.
*/
/* DELAY(3 * 1000 * 1000);*/ /* 3 Second Delay */
if (adv_is_chip_halted(adv) == 0) {
printf("adv%d: Unable to halt adapter. Initialization"
"failed\n", adv->unit);
return (1);
}
ADV_OUTW(adv, ADV_REG_PROG_COUNTER, ADV_MCODE_START_ADDR);
if (ADV_INW(adv, ADV_REG_PROG_COUNTER) != ADV_MCODE_START_ADDR) {
printf("adv%d: Unable to set program counter. Initialization"
"failed\n", adv->unit);
return (1);
}
config_lsw = ADV_INW(adv, ADV_CONFIG_LSW);
config_msw = ADV_INW(adv, ADV_CONFIG_MSW);
#if 0
/* XXX Move to PCI probe code */
if (adv->type & ADV_PCI) {
#if CC_DISABLE_PCI_PARITY_INT
config_msw &= 0xFFC0;
ADV_OUTW(adv, ADV_CONFIG_MSW, config_msw);
#endif
if (asc_dvc->cfg->pci_device_id == ASC_PCI_DEVICE_ID_REV_A) {
asc_dvc->bug_fix_cntl |= ASC_BUG_FIX_ADD_ONE_BYTE;
}
}
#endif
if ((config_msw & ADV_CFG_MSW_CLR_MASK) != 0) {
config_msw &= (~(ADV_CFG_MSW_CLR_MASK));
/*
* XXX The Linux code flags this as an error,
* but what should we report to the user???
* It seems that clearing the config register
* makes this error recoverable.
*/
ADV_OUTW(adv, ADV_CONFIG_MSW, config_msw);
}
/* Suck in the configuration from the EEProm */
checksum = adv_get_eeprom_config(adv, &eeprom_config);
eeprom_config.cfg_msw &= (~(ADV_CFG_MSW_CLR_MASK));
if (ADV_INW(adv, ADV_CHIP_STATUS) & ADV_CSW_AUTO_CONFIG) {
/*
* XXX The Linux code sets a warning level for this
* condition, yet nothing of meaning is printed to
* the user. What does this mean???
*/
if (adv->chip_version == 3) {
if (eeprom_config.cfg_lsw != config_lsw) {
/* XXX Yet another supposed Warning */
eeprom_config.cfg_lsw =
ADV_INW(adv, ADV_CONFIG_LSW);
}
if (eeprom_config.cfg_msw != config_msw) {
/* XXX Yet another supposed Warning */
eeprom_config.cfg_msw =
ADV_INW(adv, ADV_CONFIG_MSW);
}
}
}
eeprom_config.cfg_lsw |= ADV_CFG_LSW_HOST_INT_ON;
if (checksum == eeprom_config.chksum) {
if (adv_test_external_lram(adv) == 0) {
if (adv->type & ADV_PCI) {
eeprom_config.cfg_msw |= 0x0800;
config_msw |= 0x0800;
ADV_OUTW(adv, ADV_CONFIG_MSW, config_msw);
eeprom_config.max_total_qng = ADV_MAX_PCI_INRAM_TOTAL_QNG;
eeprom_config.max_tag_qng = ADV_MAX_INRAM_TAG_QNG;
}
}
/* XXX What about wide bussed cards?? */
for (i = 0; i <= 7; i++)
adv->sdtr_data[i] = eeprom_config.sdtr_data[i];
/* Range/Sanity checking */
if (eeprom_config.max_total_qng < ADV_MIN_TOTAL_QNG) {
eeprom_config.max_total_qng = ADV_MIN_TOTAL_QNG;
}
if (eeprom_config.max_total_qng > ADV_MAX_TOTAL_QNG) {
eeprom_config.max_total_qng = ADV_MAX_TOTAL_QNG;
}
if (eeprom_config.max_tag_qng > eeprom_config.max_total_qng) {
eeprom_config.max_tag_qng = eeprom_config.max_total_qng;
}
if (eeprom_config.max_tag_qng < ADV_MIN_TAG_Q_PER_DVC) {
eeprom_config.max_tag_qng = ADV_MIN_TAG_Q_PER_DVC;
}
adv->max_openings = eeprom_config.max_total_qng;
if ((eeprom_config.use_cmd_qng & eeprom_config.disc_enable) !=
eeprom_config.use_cmd_qng) {
eeprom_config.disc_enable |= eeprom_config.use_cmd_qng;
printf("adv:%d: WARNING! One or more targets with tagged "
"queuing enabled have the disconnection priveledge "
"disabled.\n"
"adv:%d: Overriding disconnection settings to "
"allow tagged queueing devices to disconnect.\n ",
adv->unit, adv->unit);
}
#if 0
/*
* XXX We should range check our target ID
* based on the width of our bus
*/
EEPROM_SET_SCSIID(eeprom_config,
EEPROM_SCSIID(eeprom_config) & ADV_MAX_TID);
#endif
adv->initiate_sdtr = eeprom_config.init_sdtr;
adv->disc_enable = eeprom_config.disc_enable;
adv->cmd_qng_enabled = eeprom_config.use_cmd_qng;
adv->isa_dma_speed = EEPROM_DMA_SPEED(eeprom_config);
adv->scsi_id = EEPROM_SCSIID(eeprom_config);
adv->start_motor = eeprom_config.start_motor;
adv->control = eeprom_config.cntl;
adv->no_scam = eeprom_config.no_scam;
} else {
/*
* Use the defaults that adv was initialized with.
*/
/*
* XXX Fixup EEPROM with default values???
*/
printf("adv%d: Warning EEPROM Checksum mismatch. "
"Using default device parameters\n", adv->unit);
}
#if 0
/* XXX Do this in the PCI probe */
if ((adv->btype & ADV_PCI) &&
!(asc_dvc->dvc_cntl & ASC_CNTL_NO_PCI_FIX_ASYN_XFER)) {
if ((asc_dvc->cfg->pci_device_id == ASC_PCI_DEVICE_ID_REV_A) ||
(asc_dvc->cfg->pci_device_id == ASC_PCI_DEVICE_ID_REV_B)) {
asc_dvc->pci_fix_asyn_xfer = ASC_ALL_DEVICE_BIT_SET;
}
}
#endif
if (adv_set_eeprom_config(adv, &eeprom_config) != 0)
printf("adv:%d: WARNING! Failure writing to EEPROM.\n");
/* Allocate space for our sense buffers */
/* XXX this should really be done by the generic SCSI layer by ensuring
* that all scsi_xfer structs are allocated below 16M if any controller
* needs to bounce.
*/
if (adv->type & ADV_ISA) {
adv->sense_buffers = (struct scsi_sense_data *)contigmalloc(sizeof(struct scsi_sense_data) * adv->max_openings,
M_DEVBUF, M_NOWAIT, 0ul, 0xfffffful, 1ul,
0x10000ul);
if (adv->sense_buffers == NULL) {
printf("adv%d: Unable to allocate sense buffer space.\n");
return (1);
}
}
if (adv_init_lram_and_mcode(adv))
return (1);
return (0);
}
void
adv_intr(arg)
void *arg;
{
struct adv_softc *adv;
u_int16_t chipstat;
u_int16_t saved_ram_addr;
u_int8_t ctrl_reg;
u_int8_t saved_ctrl_reg;
int status;
u_int8_t host_flag;
adv = (struct adv_softc *)arg;
ctrl_reg = ADV_INB(adv, ADV_CHIP_CTRL);
saved_ctrl_reg = ctrl_reg & (~(ADV_CC_SCSI_RESET | ADV_CC_CHIP_RESET |
ADV_CC_SINGLE_STEP | ADV_CC_DIAG | ADV_CC_TEST));
if ((chipstat = ADV_INW(adv, ADV_CHIP_STATUS)) & ADV_CSW_INT_PENDING) {
adv_ack_interrupt(adv);
host_flag = adv_read_lram_8(adv, ADVV_HOST_FLAG_B);
adv_write_lram_8(adv, ADVV_HOST_FLAG_B,
host_flag | ADV_HOST_FLAG_IN_ISR);
saved_ram_addr = ADV_INW(adv, ADV_LRAM_ADDR);
if ((chipstat & ADV_CSW_HALTED)
&& (ctrl_reg & ADV_CC_SINGLE_STEP)) {
adv_isr_chip_halted(adv);
saved_ctrl_reg &= ~ADV_CC_HALT;
} else {
if ((adv->control & ADV_CNTL_INT_MULTI_Q) != 0) {
while (((status = adv_qdone(adv)) & 0x01) != 0)
;
} else {
do {
status = adv_qdone(adv);
} while (status == 0x11);
}
}
ADV_OUTW(adv, ADV_LRAM_ADDR, saved_ram_addr);
#ifdef DIAGNOSTIC
if (ADV_INW(adv, ADV_LRAM_ADDR) != saved_ram_addr)
panic("adv_intr: Unable to set LRAM addr");
#endif
adv_write_lram_8(adv, ADVV_HOST_FLAG_B, host_flag);
}
ADV_OUTB(adv, ADV_CHIP_CTRL, saved_ctrl_reg);
}
int
adv_qdone(adv)
struct adv_softc *adv;
{
u_int8_t next_qp;
u_int8_t i;
u_int8_t n_q_used;
u_int8_t sg_list_qp;
u_int8_t sg_queue_cnt;
u_int8_t done_q_tail;
u_int8_t tid_no;
target_bit_vector target_id;
u_int16_t q_addr;
u_int16_t sg_q_addr;
struct adv_q_done_info scsiq_buf;
struct adv_q_done_info *scsiq;
int false_overrun;
u_int8_t tag_code;
n_q_used = 1;
scsiq = &scsiq_buf;
done_q_tail = adv_read_lram_16(adv, ADVV_DONE_Q_TAIL_W) & 0xFF;
q_addr = ADV_QNO_TO_QADDR(done_q_tail);
next_qp = adv_read_lram_8(adv, q_addr + ADV_SCSIQ_B_FWD);
if (next_qp != ADV_QLINK_END) {
adv_write_lram_16(adv, ADVV_DONE_Q_TAIL_W, next_qp);
q_addr = ADV_QNO_TO_QADDR(next_qp);
sg_queue_cnt = adv_copy_lram_doneq(adv, q_addr, scsiq, adv->max_dma_count);
adv_write_lram_8(adv, q_addr + ADV_SCSIQ_B_STATUS,
scsiq->q_status & ~(QS_READY | QS_ABORTED));
tid_no = ADV_TIX_TO_TID(scsiq->d2.target_ix);
target_id = ADV_TIX_TO_TARGET_ID(scsiq->d2.target_ix);
if ((scsiq->cntl & QC_SG_HEAD) != 0) {
sg_q_addr = q_addr;
sg_list_qp = next_qp;
for (i = 0; i < sg_queue_cnt; i++) {
sg_list_qp = adv_read_lram_8(adv,
sg_q_addr + ADV_SCSIQ_B_FWD);
sg_q_addr = ADV_QNO_TO_QADDR(sg_list_qp);
#ifdef DIAGNOSTIC
if (sg_list_qp == ASC_QLINK_END) {
panic("adv_qdone: Corrupted SG list encountered");
}
#endif
adv_write_lram_8(adv, sg_q_addr + ADV_SCSIQ_B_STATUS,
QS_FREE);
}
n_q_used = sg_queue_cnt + 1;
adv_write_lram_16(adv, ADVV_DONE_Q_TAIL_W, sg_list_qp);
}
#if 0
/* XXX Fix later */
if (adv->queue_full_or_busy & target_id) {
cur_target_qng = adv_read_lram_8(adv,
ADV_QADR_BEG + scsiq->d2.target_ix);
if (cur_target_qng < adv->max_dvc_qng[tid_no]) {
scsi_busy = adv_read_lram_8(adv, ADVV_SCSIBUSY_B);
scsi_busy &= ~target_id;
adv_write_lram_8(adv, ADVV_SCSIBUSY_B, scsi_busy);
adv->queue_full_or_busy &= ~target_id;
}
}
#endif
#ifdef DIAGNOSTIC
if (adv->cur_total_qng < n_q_used)
panic("adv_qdone: Attempting to free more queues than are active");
#endif
adv->cur_active -= n_q_used;
if ((scsiq->d2.xs_ptr == 0) ||
((scsiq->q_status & QS_ABORTED) != 0))
return (0x11);
else if (scsiq->q_status == QS_DONE) {
false_overrun = FALSE;
if (adv->bug_fix_control & ADV_BUG_FIX_ADD_ONE_BYTE) {
tag_code = adv_read_lram_8(adv, q_addr + ADV_SCSIQ_B_TAG_CODE);
if (tag_code & ADV_TAG_FLAG_ADD_ONE_BYTE) {
if (scsiq->remain_bytes != 0) {
scsiq->remain_bytes--;
if (scsiq->remain_bytes == 0)
false_overrun = TRUE;
}
}
}
if ((scsiq->d3.done_stat == QD_WITH_ERROR) &&
(scsiq->d3.host_stat == QHSTA_M_DATA_OVER_RUN)) {
if ((scsiq->cntl & (QC_DATA_IN | QC_DATA_OUT)) == 0) {
scsiq->d3.done_stat = QD_NO_ERROR;
scsiq->d3.host_stat = QHSTA_NO_ERROR;
} else if (false_overrun) {
scsiq->d3.done_stat = QD_NO_ERROR;
scsiq->d3.host_stat = QHSTA_NO_ERROR;
}
}
if ((scsiq->cntl & QC_NO_CALLBACK) == 0)
adv_done(adv, scsiq);
else {
if ((adv_read_lram_8(adv, q_addr + ADV_SCSIQ_CDB_BEG) ==
START_STOP)) {
adv->unit_not_ready &= ~target_id;
if (scsiq->d3.done_stat != QD_NO_ERROR)
adv->start_motor &= ~target_id;
}
}
return (1);
} else {
panic("adv_qdone: completed scsiq with unknown status");
#if 0
/*
* XXX Doesn't this simply indicate a software bug?
* What does setting the lram error code do for
* you. Would we even recover?
*/
AscSetLibErrorCode(asc_dvc, ASCQ_ERR_Q_STATUS);
FATAL_ERR_QDONE:
if ((scsiq->cntl & QC_NO_CALLBACK) == 0) {
(*asc_isr_callback) (asc_dvc, scsiq);
}
return (0x80);
#endif
}
}
return (0);
}
void
adv_done(adv, qdonep)
struct adv_softc *adv;
struct adv_q_done_info *qdonep;
{
struct scsi_xfer *xs;
xs = (struct scsi_xfer *)qdonep->d2.xs_ptr;
xs->status = qdonep->d3.scsi_stat;
/*
* 'qdonep' contains the command's ending status.
*/
switch (qdonep->d3.done_stat) {
case QD_NO_ERROR:
switch (qdonep->d3.host_stat) {
case QHSTA_NO_ERROR:
break;
case QHSTA_M_SEL_TIMEOUT:
xs->error = XS_SELTIMEOUT;
break;
default:
/* QHSTA error occurred */
#if 0
/* XXX Can I get more explicit information here? */
xs->error = XS_DRIVER_STUFFUP;
#endif
break;
}
break;
case QD_WITH_ERROR:
switch (qdonep->d3.host_stat) {
case QHSTA_NO_ERROR:
if ((qdonep->d3.scsi_stat == STATUS_CHECK_CONDITION)
|| (qdonep->d3.scsi_stat == STATUS_COMMAND_TERMINATED)) {
/* We have valid sense information to return */
xs->error = XS_SENSE;
if (adv->sense_buffers != NULL)
/* Structure copy */
xs->sense = adv->sense_buffers[qdonep->q_no];
}
break;
case QHSTA_M_SEL_TIMEOUT:
xs->error = XS_SELTIMEOUT;
break;
default:
#if 0
/* XXX Can I get more explicit information here? */
xs->error = XS_DRIVER_STUFFUP;
#endif
break;
}
break;
case QD_ABORTED_BY_HOST:
/* XXX Should have an explicit ABORTED error code */
xs->error = XS_ABORTED;
break;
default:
#if 0
printf("adv_done: Unknown done status 0x%x\n",
qdonep->d3.done_stat);
xs->error = XS_DRIVER_STUFFUP;
#endif
break;
}
xs->flags |= SCSI_ITSDONE;
scsi_done(xs);
return;
}
/*
* Function to poll for command completion when
* interrupts are disabled (crash dumps)
*/
static int
adv_poll(adv, xs)
struct adv_softc *adv;
struct scsi_xfer *xs;
{
int wait;
wait = xs->timeout;
do {
DELAY(1000);
adv_intr((void *)adv);
} while (--wait && ((xs->flags & SCSI_ITSDONE) == 0));
if (wait == 0) {
printf("adv%d: board is not responding\n", adv->unit);
return (EIO);
}
return (0);
}
/*
* Attach all the sub-devices we can find
*/
int
adv_attach(adv)
struct adv_softc *adv;
{
struct scsi_bus *scbus;
struct scsi_queue *scsiq;
scsiq = scsi_alloc_queue(adv->max_openings);
if (scsiq == NULL)
return 0;
/*
* Prepare the scsi_bus area for the upperlevel scsi code.
*/
scbus = scsi_alloc_bus(&adv_switch, adv, adv->unit, scsiq);
if (scbus == NULL) {
scsi_free_queue(scsiq);
return 0;
}
/* Override defaults */
if ((adv->type & ADV_ISA) != 0)
scbus->adpt_link.adpt_flags |= SADPT_BOUNCE;
scbus->adpt_link.adpt_target = adv->scsi_id;
scbus->adpt_link.adpt_openings = 2; /* XXX Is this correct for these cards? */
scbus->adpt_link.adpt_tagged_openings = adv->max_openings;
/*
* ask the adapter what subunits are present
*/
if(bootverbose)
printf("adv%d: Probing SCSI bus\n", adv->unit);
scsi_attachdevs(scbus);
return 1;
}
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