static void
ahd_dump_target_state(struct ahd_softc *ahd, struct info_str *info,
u_int our_id, char channel, u_int target_id)
{
struct scsi_target *starget;
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
int lun;
tinfo = ahd_fetch_transinfo(ahd, channel, our_id,
target_id, &tstate);
copy_info(info, "Target %d Negotiation Settings\n", target_id);
copy_info(info, "\tUser: "******"\tGoal: ");
ahd_format_transinfo(info, &tinfo->goal);
copy_info(info, "\tCurr: ");
ahd_format_transinfo(info, &tinfo->curr);
for (lun = 0; lun < AHD_NUM_LUNS; lun++) {
struct scsi_device *dev;
dev = scsi_device_lookup_by_target(starget, lun);
if (dev == NULL)
continue;
ahd_dump_device_state(info, dev);
}
}
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;
}
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_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;
}
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;
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_msec(&xs->stimeout, xs->timeout);
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;
}
/*
* 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);
}
void
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;
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;
target_id = xs->sc_link->target;
our_id = SCSI_SCSI_ID(ahd, xs->sc_link);
ahd_lock(ahd, &s);
if ((ahd->flags & AHD_INITIATORROLE) == 0) {
xs->error = XS_DRIVER_STUFFUP;
scsi_done(xs);
ahd_unlock(ahd, &s);
return;
}
/*
* get an scb to use.
*/
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;
xs->error = XS_NO_CCB;
scsi_done(xs);
ahd_unlock(ahd, &s);
return;
}
ahd_unlock(ahd, &s);
hscb = scb->hscb;
SC_DEBUG(xs->sc_link, SDEV_DB3, ("start scb(%p)\n", scb));
scb->xs = xs;
timeout_set(&xs->stimeout, ahd_timeout, scb);
/*
* 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;
ahd_setup_data(ahd, xs, scb);
}
}
