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|
/* $OpenBSD: aic79xx_openbsd.c,v 1.9 2004/10/10 15:08:10 marco Exp $ */
/*
* Copyright (c) 2004 Milos Urbanek, Kenneth R. Westerback & Marco Peereboom
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS 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 AUTHORS 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.
*
*/
/*
* Bus independent OpenBSD shim for the aic79xx based Adaptec SCSI controllers
*
* Copyright (c) 1994-2002 Justin T. Gibbs.
* Copyright (c) 2001-2002 Adaptec Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU Public License ("GPL").
*
* 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.
*
*/
#include <sys/cdefs.h>
/*
__FBSDID("$FreeBSD: src/sys/dev/aic7xxx/aic79xx_osm.c,v 1.16 2003/12/17 00:02:09 gibbs Exp $");
*/
#include <dev/ic/aic79xx_openbsd.h>
#include <dev/ic/aic79xx_inline.h>
#include <dev/ic/aic79xx.h>
#ifndef AHD_TMODE_ENABLE
#define AHD_TMODE_ENABLE 0
#endif
/* XXX milos add ahd_ioctl */
int ahd_action(struct scsi_xfer *);
int ahd_execute_scb(void *, bus_dma_segment_t *, int);
int ahd_poll(struct ahd_softc *, int);
int ahd_setup_data(struct ahd_softc *, struct scsi_xfer *,
struct scb *);
void ahd_adapter_req_set_xfer_mode(struct ahd_softc *, struct scb *);
void ahd_minphys(struct buf *);
struct cfdriver ahd_cd = {
NULL, "ahd", DV_DULL
};
static struct scsi_adapter ahd_switch =
{
ahd_action,
ahd_minphys,
0,
0,
};
/* the below structure is so we have a default dev struct for our link struct */
static struct scsi_device ahd_dev =
{
NULL, /* Use default error handler */
NULL, /* have a queue, served by this */
NULL, /* have no async handler */
NULL, /* Use default 'done' routine */
};
/*
* Attach all the sub-devices we can find
*/
int
ahd_attach(struct ahd_softc *ahd)
{
char ahd_info[256];
int s;
ahd_controller_info(ahd, ahd_info, sizeof ahd_info);
printf("%s\n", ahd_info);
ahd_lock(ahd, &s);
/*
* fill in the prototype scsi_links.
*/
ahd->sc_channel.adapter_target = ahd->our_id;
if (ahd->features & AHD_WIDE)
ahd->sc_channel.adapter_buswidth = 16;
ahd->sc_channel.adapter_softc = ahd;
ahd->sc_channel.adapter = &ahd_switch;
ahd->sc_channel.openings = 16;
ahd->sc_channel.device = &ahd_dev;
if (bootverbose) {
ahd_controller_info(ahd, ahd_info, sizeof ahd_info);
printf("%s: %s\n", ahd->sc_dev.dv_xname, ahd_info);
}
ahd_intr_enable(ahd, TRUE);
if (ahd->flags & AHD_RESET_BUS_A)
ahd_reset_channel(ahd, 'A', TRUE);
ahd->sc_child = config_found((void *)&ahd->sc_dev,
&ahd->sc_channel, scsiprint);
ahd_unlock(ahd, &s);
return (1);
}
/*
* Catch an interrupt from the adapter
*/
int
ahd_platform_intr(void *arg)
{
struct ahd_softc *ahd;
/* XXX in ahc there is some bus_dmamap_sync(PREREAD|PREWRITE); */
ahd = (struct ahd_softc *)arg;
return ahd_intr(ahd);
}
/*
* We have an scb which has been processed by the
* adaptor, now we look to see how the operation
* went.
*/
void
ahd_done(struct ahd_softc *ahd, struct scb *scb)
{
struct scsi_xfer *xs = scb->xs;
int s;
/* XXX in ahc there is some bus_dmamap_sync(PREREAD|PREWRITE); */
LIST_REMOVE(scb, pending_links);
timeout_del(&xs->stimeout);
if (xs->datalen) {
int op;
if ((xs->flags & SCSI_DATA_IN) != 0)
op = BUS_DMASYNC_POSTREAD;
else
op = BUS_DMASYNC_POSTWRITE;
bus_dmamap_sync(ahd->parent_dmat, scb->dmamap, 0,
scb->dmamap->dm_mapsize, op);
bus_dmamap_unload(ahd->parent_dmat, scb->dmamap);
}
/*
* If the recovery SCB completes, we have to be
* out of our timeout.
*/
if ((scb->flags & SCB_RECOVERY_SCB) != 0) {
struct scb *list_scb;
/*
* We were able to complete the command successfully,
* so reinstate the timeouts for all other pending
* commands.
*/
LIST_FOREACH(list_scb, &ahd->pending_scbs, pending_links) {
struct scsi_xfer *txs = list_scb->xs;
if (!(txs->flags & SCSI_POLL))
timeout_add(&list_scb->xs->stimeout,
(list_scb->xs->timeout * hz)/1000);
}
if (ahd_get_transaction_status(scb) != CAM_REQ_INPROG)
ahd_set_transaction_status(scb, CAM_CMD_TIMEOUT);
ahd_print_path(ahd, scb);
printf("%s: no longer in timeout, status = %x\n",
ahd_name(ahd), xs->status);
}
/* Translate the CAM status code to a SCSI error code. */
switch (xs->error) {
case CAM_SCSI_STATUS_ERROR:
case CAM_REQ_INPROG:
case CAM_REQ_CMP:
switch (xs->status) {
case SCSI_TASKSET_FULL:
/* SCSI Layer won't requeue, so we force infinite
* retries until queue space is available. XS_BUSY
* is dangerous because if the NOSLEEP flag is set
* it can cause the I/O to return EIO. XS_BUSY code
* falls through to XS_TIMEOUT anyway.
*/
xs->error = XS_TIMEOUT;
xs->retries++;
break;
case SCSI_BUSY:
xs->error = XS_BUSY;
break;
case SCSI_CHECK:
case SCSI_TERMINATED:
if ((scb->flags & SCB_SENSE) == 0) {
/* CHECK on CHECK? */
xs->error = XS_DRIVER_STUFFUP;
} else
xs->error = XS_NOERROR;
break;
default:
xs->error = XS_NOERROR;
break;
}
break;
case CAM_BUSY:
xs->error = XS_BUSY;
break;
case CAM_CMD_TIMEOUT:
xs->error = XS_TIMEOUT;
break;
case CAM_BDR_SENT:
case CAM_SCSI_BUS_RESET:
xs->error = XS_RESET;
case CAM_REQUEUE_REQ:
xs->error = XS_TIMEOUT;
xs->retries++;
break;
case CAM_SEL_TIMEOUT:
xs->error = XS_SELTIMEOUT;
break;
default:
xs->error = XS_DRIVER_STUFFUP;
break;
}
if (xs->error != XS_NOERROR) {
/* Don't clobber any existing error state */
} else if ((scb->flags & SCB_SENSE) != 0) {
/*
* We performed autosense retrieval.
*
* Zero any sense not transferred by the
* device. The SCSI spec mandates that any
* untransfered data should be assumed to be
* zero. Complete the 'bounce' of sense information
* through buffers accessible via bus-space by
* copying it into the clients csio.
*/
memset(&xs->sense, 0, sizeof(struct scsi_sense_data));
memcpy(&xs->sense, ahd_get_sense_buf(ahd, scb),
sizeof(struct scsi_sense_data));
xs->error = XS_SENSE;
#if 0
} else if ((scb->flags & SCB_PKT_SENSE) != 0) {
struct scsi_status_iu_header *siu;
u_int sense_len;
int i;
/*
* Copy only the sense data into the provided buffer.
*/
siu = (struct scsi_status_iu_header *)scb->sense_data;
sense_len = MIN(scsi_4btoul(siu->sense_length),
sizeof(struct scsi_sense_data));
memset(&xs->sense, 0, &xs->sense);
memcpy(&xs->sense,
ahd_get_sense_buf(ahd, scb) + SIU_SENSE_OFFSET(siu),
sense_len);
printf("Copied %d bytes of sense data offset %d:", sense_len,
SIU_SENSE_OFFSET(siu));
for (i = 0; i < sense_len; i++)
printf(" 0x%x", ((uint8_t *)&xs->sense)[i]);
printf("\n");
ahd_set_transaction_status(scb, XS_SENSE);
#endif
}
if (scb->flags & SCB_FREEZE_QUEUE) {
scb->flags &= ~SCB_FREEZE_QUEUE;
}
#if 0 /* MU: no such settings in ahc */
if (scb->flags & SCB_REQUEUE)
ahd_set_transaction_status(scb, XS_REQUEUE);
#endif
ahd_lock(ahd, &s);
ahd_free_scb(ahd, scb);
ahd_unlock(ahd, &s);
xs->flags |= ITSDONE;
scsi_done(xs);
}
void
ahd_minphys(bp)
struct buf *bp;
{
/*
* Even though the card can transfer up to 16megs per command
* we are limited by the number of segments in the dma segment
* list that we can hold. The worst case is that all pages are
* discontinuous physically, hence the "page per segment" limit
* enforced here.
*/
if (bp->b_bcount > ((AHD_NSEG - 1) * PAGE_SIZE)) {
bp->b_bcount = ((AHD_NSEG - 1) * PAGE_SIZE);
}
minphys(bp);
}
int32_t
ahd_action(struct scsi_xfer *xs)
{
struct ahd_softc *ahd;
struct scb *scb;
struct hardware_scb *hscb;
u_int target_id;
u_int our_id;
int s;
int dontqueue = 0;
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
u_int col_idx;
u_int16_t quirks;
SC_DEBUG(xs->sc_link, SDEV_DB3, ("ahd_action\n"));
ahd = (struct ahd_softc *)xs->sc_link->adapter_softc;
/* determine safety of software queueing */
dontqueue = xs->flags & SCSI_POLL;
target_id = xs->sc_link->target;
our_id = SCSI_SCSI_ID(ahd, xs->sc_link);
if ((ahd->flags & AHD_INITIATORROLE) == 0) {
xs->error = XS_DRIVER_STUFFUP;
xs->flags |= ITSDONE;
scsi_done(xs);
return (COMPLETE);
/* return ccb->ccb_h.status = CAM_PROVIDE_FAIL; */
}
/*
* get an scb to use.
*/
ahd_lock(ahd, &s);
tinfo = ahd_fetch_transinfo(ahd, 'A', our_id, target_id, &tstate);
quirks = xs->sc_link->quirks;
if ((quirks & SDEV_NOTAGS) == 0 ||
(tinfo->curr.ppr_options & MSG_EXT_PPR_PROT_IUS) != 0)
col_idx = AHD_NEVER_COL_IDX;
else
col_idx = AHD_BUILD_COL_IDX(target_id, xs->sc_link->lun);
if ((scb = ahd_get_scb(ahd, col_idx)) == NULL) {
ahd->flags |= AHD_RESOURCE_SHORTAGE;
ahd_unlock(ahd, &s);
xs->error = XS_DRIVER_STUFFUP;
return (TRY_AGAIN_LATER);
}
ahd_unlock(ahd, &s);
hscb = scb->hscb;
SC_DEBUG(xs->sc_link, SDEV_DB3, ("start scb(%p)\n", scb));
scb->xs = xs;
/*
* Put all the arguments for the xfer in the scb
*/
hscb->control = 0;
hscb->scsiid = BUILD_SCSIID(ahd, xs->sc_link, target_id, our_id);
hscb->lun = xs->sc_link->lun;
if (xs->xs_control & XS_CTL_RESET) {
hscb->cdb_len = 0;
scb->flags |= SCB_DEVICE_RESET;
hscb->control |= MK_MESSAGE;
hscb->task_management = SIU_TASKMGMT_LUN_RESET;
ahd_execute_scb(scb, NULL, 0);
} else {
hscb->task_management = 0;
}
#if 0
if (ccb->ccb_h.flags & CAM_TAG_ACTION_VALID)
hscb->control |= ccb->csio.tag_action;
#endif
timeout_set(&xs->stimeout, ahd_timeout, scb);
return ahd_setup_data(ahd, xs, scb);
}
int
ahd_execute_scb(void *arg, bus_dma_segment_t *dm_segs, int nsegments)
{
struct scb *scb;
struct scsi_xfer *xs;
struct ahd_softc *ahd;
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
u_int mask;
int s;
scb = (struct scb *)arg;
xs = scb->xs;
xs->error = CAM_REQ_INPROG;
xs->status = 0;
ahd = (struct ahd_softc *)xs->sc_link->adapter_softc;
if (nsegments != 0) {
void *sg;
int op;
u_int i;
ahd_setup_data_scb(ahd, scb);
/* Copy the segments into our SG list */
for (i = nsegments, sg = scb->sg_list; i > 0; i--) {
sg = ahd_sg_setup(ahd, scb, sg, dm_segs->ds_addr,
dm_segs->ds_len,
/*last*/i == 1);
dm_segs++;
}
if ((xs->flags & SCSI_DATA_IN) != 0)
op = BUS_DMASYNC_PREREAD;
else
op = BUS_DMASYNC_PREWRITE;
bus_dmamap_sync(ahd->parent_dmat, scb->dmamap, 0,
scb->dmamap->dm_mapsize, op);
}
ahd_lock(ahd, &s);
/*
* Last time we need to check if this SCB needs to
* be aborted.
*/
if (xs->flags & ITSDONE) {
if (nsegments != 0)
bus_dmamap_unload(ahd->parent_dmat,
scb->dmamap);
ahd_free_scb(ahd, scb);
ahd_unlock(ahd, &s);
return (COMPLETE);
}
tinfo = ahd_fetch_transinfo(ahd, SCSIID_CHANNEL(ahd, scb->hscb->scsiid),
SCSIID_OUR_ID(scb->hscb->scsiid),
SCSIID_TARGET(ahd, scb->hscb->scsiid),
&tstate);
mask = SCB_GET_TARGET_MASK(ahd, scb);
if ((tstate->discenable & mask) != 0)
scb->hscb->control |= DISCENB;
if ((tstate->tagenable & mask) != 0)
scb->hscb->control |= TAG_ENB;
/* disable tags and disconection to work around overlapped commands
* for non U320 devices
*/
if ((tinfo->curr.ppr_options & MSG_EXT_PPR_PROT_IUS) == 0) {
scb->hscb->control &= ~TAG_ENB;
scb->hscb->control &= ~DISCENB;
}
if ((tinfo->curr.ppr_options & MSG_EXT_PPR_PROT_IUS) != 0) {
scb->flags |= SCB_PACKETIZED;
if (scb->hscb->task_management != 0)
scb->hscb->control &= ~MK_MESSAGE;
}
if ((tstate->auto_negotiate & mask) != 0) {
scb->flags |= SCB_AUTO_NEGOTIATE;
scb->hscb->control |= MK_MESSAGE;
}
/* XXX with ahc there was some bus_dmamap_sync(PREREAD|PREWRITE); */
LIST_INSERT_HEAD(&ahd->pending_scbs, scb, pending_links);
if (!(xs->flags & SCSI_POLL))
timeout_add(&xs->stimeout, (xs->timeout * hz) / 1000);
scb->flags |= SCB_ACTIVE;
if ((scb->flags & SCB_TARGET_IMMEDIATE) != 0) {
/* Define a mapping from our tag to the SCB. */
ahd->scb_data.scbindex[SCB_GET_TAG(scb)] = scb;
ahd_pause(ahd);
ahd_set_scbptr(ahd, SCB_GET_TAG(scb));
ahd_outb(ahd, RETURN_1, CONT_MSG_LOOP_TARG);
ahd_unpause(ahd);
} else {
ahd_queue_scb(ahd, scb);
}
if (!(xs->flags & SCSI_POLL)) {
int target = xs->sc_link->target;
int lun = SCB_GET_LUN(scb);
if (ahd->inited_target[target] == 0) {
struct ahd_devinfo devinfo;
ahd_adapter_req_set_xfer_mode(ahd, scb);
ahd_compile_devinfo(&devinfo, ahd->our_id, target, lun,
'A', /*XXX milos*/ROLE_UNKNOWN);
ahd_scb_devinfo(ahd, &devinfo, scb);
ahd_update_neg_request(ahd, &devinfo, tstate, tinfo,
AHD_NEG_IF_NON_ASYNC);
ahd->inited_target[target] = 1;
}
ahd_unlock(ahd, &s);
return (SUCCESSFULLY_QUEUED);
}
/*
* If we can't use interrupts, poll for completion
*/
SC_DEBUG(xs->sc_link, SDEV_DB3, ("cmd_poll\n"));
do {
if (ahd_poll(ahd, xs->timeout)) {
if (!(xs->flags & SCSI_SILENT))
printf("cmd fail\n");
ahd_timeout(scb);
break;
}
} while (!(xs->flags & ITSDONE));
ahd_unlock(ahd, &s);
return (COMPLETE);
}
int
ahd_poll(struct ahd_softc *ahd, int wait)
{
while (--wait) {
DELAY(1000);
if (ahd_inb(ahd, INTSTAT) & INT_PEND)
break;
}
if (wait == 0) {
printf("%s: board is not responding\n", ahd_name(ahd));
return (EIO);
}
ahd_intr((void *)ahd);
return (0);
}
int
ahd_setup_data(struct ahd_softc *ahd, struct scsi_xfer *xs,
struct scb *scb)
{
struct hardware_scb *hscb;
hscb = scb->hscb;
xs->resid = xs->status = 0;
xs->error = CAM_REQ_INPROG;
hscb->cdb_len = xs->cmdlen;
if (hscb->cdb_len > MAX_CDB_LEN) {
int s;
ahd_set_transaction_status(scb, CAM_REQ_INVALID);
ahd_lock(ahd, &s);
ahd_free_scb(ahd, scb);
ahd_unlock(ahd, &s);
xs->flags |= ITSDONE;
scsi_done(xs);
return (COMPLETE);
}
memcpy(hscb->shared_data.idata.cdb, xs->cmd, hscb->cdb_len);
/* Only use S/G if there is a transfer */
if (xs->datalen) {
int error;
error = bus_dmamap_load(ahd->parent_dmat,
scb->dmamap, xs->data,
xs->datalen, NULL,
((xs->flags & SCSI_NOSLEEP) ?
BUS_DMA_NOWAIT : BUS_DMA_WAITOK) |
BUS_DMA_STREAMING |
((xs->flags & XS_CTL_DATA_IN) ?
BUS_DMA_READ : BUS_DMA_WRITE));
if (error) {
#ifdef AHD_DEBUG
printf("%s: in ahd_setup_data(): bus_dmamap_load() "
"= %d\n",
ahd_name(ahd), error);
#endif
xs->error = XS_BUSY;
xs->flags |= ITSDONE;
scsi_done(xs);
return (TRY_AGAIN_LATER); /* XXX fvdl */
}
error = ahd_execute_scb(scb,
scb->dmamap->dm_segs,
scb->dmamap->dm_nsegs);
return error;
} else {
return ahd_execute_scb(scb, NULL, 0);
}
}
void
ahd_platform_set_tags(struct ahd_softc *ahd,
struct ahd_devinfo *devinfo, ahd_queue_alg alg)
{
struct ahd_tmode_tstate *tstate;
ahd_fetch_transinfo(ahd, devinfo->channel, devinfo->our_scsiid,
devinfo->target, &tstate);
if (alg != AHD_QUEUE_NONE)
tstate->tagenable |= devinfo->target_mask;
else
tstate->tagenable &= ~devinfo->target_mask;
}
int
ahd_platform_alloc(struct ahd_softc *ahd, void *platform_arg)
{
ahd->platform_data = malloc(sizeof(struct ahd_platform_data), M_DEVBUF,
M_NOWAIT /*| M_ZERO*/);
if (ahd->platform_data == NULL)
return (ENOMEM);
memset(ahd->platform_data, 0, sizeof(struct ahd_platform_data));
return (0);
}
void
ahd_platform_free(struct ahd_softc *ahd)
{
free(ahd->platform_data, M_DEVBUF);
}
int
ahd_softc_comp(struct ahd_softc *lahd, struct ahd_softc *rahd)
{
/* We don't sort softcs under OpenBSD so report equal always */
return (0);
}
int
ahd_detach(struct device *self, int flags)
{
int rv = 0;
struct ahd_softc *ahd = (struct ahd_softc*)self;
if (ahd->sc_child != NULL)
rv = config_detach((void *)ahd->sc_child, flags);
shutdownhook_disestablish(ahd->shutdown_hook);
ahd_free(ahd);
return rv;
}
void
ahd_adapter_req_set_xfer_mode(struct ahd_softc *ahd, struct scb *scb)
{
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
int target_id, our_id;
struct ahd_devinfo devinfo;
u_int16_t quirks;
u_int width, ppr_options, period, offset;
int s;
target_id = scb->xs->sc_link->target;
our_id = SCSI_SCSI_ID(ahd, scb->xs->sc_link);
s = splbio();
quirks = scb->xs->sc_link->quirks;
tinfo = ahd_fetch_transinfo(ahd, 'A', our_id, target_id, &tstate);
ahd_compile_devinfo(&devinfo, our_id, target_id, 0, 'A',
ROLE_INITIATOR);
tstate->discenable |= (ahd->user_discenable & devinfo.target_mask);
if (quirks & SDEV_NOTAGS)
tstate->tagenable &= ~devinfo.target_mask;
else if (ahd->user_tagenable & devinfo.target_mask)
tstate->tagenable |= devinfo.target_mask;
if (quirks & SDEV_NOWIDE)
width = MSG_EXT_WDTR_BUS_8_BIT;
else
width = MSG_EXT_WDTR_BUS_16_BIT;
ahd_validate_width(ahd, NULL, &width, ROLE_UNKNOWN);
if (width > tinfo->user.width)
width = tinfo->user.width;
ahd_set_width(ahd, &devinfo, width, AHD_TRANS_GOAL, FALSE);
if (quirks & SDEV_NOSYNC) {
period = 0;
offset = 0;
} else {
period = tinfo->user.period;
offset = tinfo->user.offset;
}
/* XXX Look at saved INQUIRY flags for PPR capabilities XXX */
ppr_options = tinfo->user.ppr_options;
/* XXX Other reasons to avoid ppr? XXX */
if (width < MSG_EXT_WDTR_BUS_16_BIT)
ppr_options = 0;
if ((tstate->discenable & devinfo.target_mask) == 0 ||
(tstate->tagenable & devinfo.target_mask) == 0)
ppr_options &= ~MSG_EXT_PPR_PROT_IUS;
ahd_find_syncrate(ahd, &period, &ppr_options, AHD_SYNCRATE_MAX);
ahd_validate_offset(ahd, NULL, period, &offset, width, ROLE_UNKNOWN);
if (offset == 0) {
period = 0;
ppr_options = 0;
}
if (ppr_options != 0 && tinfo->user.transport_version >= 3) {
tinfo->goal.transport_version = tinfo->user.transport_version;
tinfo->curr.transport_version = tinfo->user.transport_version;
}
ahd_set_syncrate(ahd, &devinfo, period, offset, ppr_options,
AHD_TRANS_GOAL, FALSE);
splx(s);
}
void
ahd_timer_reset(ahd_timer_t *timer, u_int usec, ahd_callback_t *func, void *arg)
{
callout_reset(timer, (usec * hz)/1000000, func, arg);
}
void
ahd_scb_timer_reset(struct scb *scb, u_int usec)
{
if (!(scb->xs->xs_control & XS_CTL_POLL)) {
callout_reset(&scb->xs->xs_callout,
(usec * hz)/1000000, ahd_timeout, scb);
}
}
void
ahd_flush_device_writes(struct ahd_softc *ahd)
{
/* XXX Is this sufficient for all architectures??? */
ahd_inb(ahd, INTSTAT);
}
void
ahd_lockinit(struct ahd_softc *ahd)
{
}
void
ahd_lock(struct ahd_softc *ahd, int *flags)
{
*flags = splbio();
}
void
ahd_unlock(struct ahd_softc *ahd, int *flags)
{
splx(*flags);
}
/* Lock held during command compeletion to the upper layer */
void
ahd_done_lockinit(struct ahd_softc *ahd)
{
}
void
ahd_done_lock(struct ahd_softc *ahd, int *flags)
{
}
void
ahd_done_unlock(struct ahd_softc *ahd, int *flags)
{
}
/* Lock held during ahd_list manipulation and ahd softc frees */
void
ahd_list_lockinit(void)
{
}
void
ahd_list_lock(int *flags)
{
}
void
ahd_list_unlock(int *flags)
{
}
void ahd_set_transaction_status(struct scb *scb, uint32_t status)
{
scb->xs->error = status;
}
void ahd_set_scsi_status(struct scb *scb, uint32_t status)
{
scb->xs->xs_status = status;
}
uint32_t ahd_get_transaction_status(struct scb *scb)
{
if (scb->xs->flags & ITSDONE)
return CAM_REQ_CMP;
else
return scb->xs->error;
}
uint32_t ahd_get_scsi_status(struct scb *scb)
{
return (scb->xs->status);
}
void ahd_set_transaction_tag(struct scb *scb, int enabled, u_int type)
{
}
u_long ahd_get_transfer_length(struct scb *scb)
{
return (scb->xs->datalen);
}
int ahd_get_transfer_dir(struct scb *scb)
{
return (scb->xs->flags & (SCSI_DATA_IN | SCSI_DATA_OUT));
}
void ahd_set_residual(struct scb *scb, u_long resid)
{
scb->xs->resid = resid;
}
void ahd_set_sense_residual(struct scb *scb, u_long resid)
{
scb->xs->resid = resid;
}
u_long ahd_get_residual(struct scb *scb)
{
return (scb->xs->resid);
}
int ahd_perform_autosense(struct scb *scb)
{
/* Return true for OpenBSD */
return (1);
}
uint32_t
ahd_get_sense_bufsize(struct ahd_softc *ahd, struct scb *scb)
{
return (sizeof(struct scsi_sense_data));
}
void
ahd_freeze_simq(struct ahd_softc *ahd)
{
/* do nothing for now */
}
void
ahd_release_simq(struct ahd_softc *ahd)
{
/* do nothing for now */
}
void
ahd_freeze_scb(struct scb *scb)
{
struct scsi_xfer *xs = scb->xs;
int target;
target = xs->sc_link->target;
if (!(scb->flags & SCB_FREEZE_QUEUE)) {
scb->flags |= SCB_FREEZE_QUEUE;
}
}
void
ahd_platform_freeze_devq(struct ahd_softc *ahd, struct scb *scb)
{
}
int
ahd_platform_abort_scbs(struct ahd_softc *ahd, int target,
char channel, int lun, u_int tag,
role_t role, uint32_t status)
{
return (0);
}
void
ahd_platform_scb_free(struct ahd_softc *ahd, struct scb *scb)
{
int s;
ahd_lock(ahd, &s);
if ((ahd->flags & AHD_RESOURCE_SHORTAGE) != 0 ||
(scb->flags & SCB_RECOVERY_SCB) != 0) {
ahd->flags &= ~AHD_RESOURCE_SHORTAGE;
}
if (!cold) {
/* we are no longer in autoconf */
timeout_del(&scb->xs->stimeout);
}
ahd_unlock(ahd, &s);
}
uint32_t
ahd_pci_read_config(ahd_dev_softc_t pci, int reg, int width)
{
return (pci_conf_read(pci->pa_pc, pci->pa_tag, reg));
}
void
ahd_pci_write_config(ahd_dev_softc_t pci, int reg, uint32_t value, int width)
{
pci_conf_write(pci->pa_pc, pci->pa_tag, reg, value);
}
int
ahd_get_pci_function(ahd_dev_softc_t pci)
{
return (pci->pa_function);
}
int
ahd_get_pci_slot(ahd_dev_softc_t pci)
{
return (pci->pa_device);
}
int
ahd_get_pci_bus(ahd_dev_softc_t pci)
{
return (pci->pa_bus);
}
void
ahd_print_path(struct ahd_softc *ahd, struct scb *scb)
{
sc_print_addr(scb->xs->sc_link);
}
void
ahd_platform_dump_card_state(struct ahd_softc *ahd)
{
/* Nothing to do here for OpenBSD */
printf("FEATURES = 0x%x, FLAGS = 0x%x, CHIP = 0x%x BUGS =0x%x\n",
ahd->features, ahd->flags, ahd->chip, ahd->bugs);
}
void
ahd_platform_flushwork(struct ahd_softc *ahd)
{
}
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