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[SCSI] aic79xx: sequencer fixes 

This patch updates the aic79xx sequencer with latest fixes from adaptec.
The sequencer code now corresponds with adaptec version 2.0.15.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Hannes Reinecke 2006-01-24 10:43:26 +01:00 committed by James Bottomley
parent 2628ed2b1a
commit 53467e636b
9 changed files with 834 additions and 553 deletions
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29
drivers/scsi/aic7xxx/aic79xx.reg
View File

@ -1,7 +1,7 @@
/*
* Aic79xx register and scratch ram definitions.
*
* Copyright (c) 1994-2001 Justin T. Gibbs.
* Copyright (c) 1994-2001, 2004 Justin T. Gibbs.
* Copyright (c) 2000-2002 Adaptec Inc.
* All rights reserved.
*
@ -39,7 +39,7 @@
*
* $FreeBSD$
*/
VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic79xx.reg#76 $"
VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic79xx.reg#77 $"
/*
* This file is processed by the aic7xxx_asm utility for use in assembling
@ -3715,8 +3715,9 @@ scratch_ram {
SEQ_FLAGS2 {
size 1
field TARGET_MSG_PENDING 0x02
field SELECTOUT_QFROZEN 0x04
field PENDING_MK_MESSAGE 0x01
field TARGET_MSG_PENDING 0x02
field SELECTOUT_QFROZEN 0x04
}
ALLOCFIFO_SCBPTR {
@ -3777,6 +3778,26 @@ scratch_ram {
CMDSIZE_TABLE {
size 8
}
/*
* When an SCB with the MK_MESSAGE flag is
* queued to the controller, it cannot enter
* the waiting for selection list until the
* selections for any previously queued
* commands to that target complete. During
* the wait, the MK_MESSAGE SCB is queued
* here.
*/
MK_MESSAGE_SCB {
size 2
}
/*
* Saved SCSIID of MK_MESSAGE_SCB to avoid
* an extra SCBPTR operation when deciding
* if the MK_MESSAGE_SCB can be run.
*/
MK_MESSAGE_SCSIID {
size 1
}
}
/************************* Hardware SCB Definition ****************************/

143
drivers/scsi/aic7xxx/aic79xx.seq
View File

@ -1,7 +1,7 @@
/*
* Adaptec U320 device driver firmware for Linux and FreeBSD.
*
* Copyright (c) 1994-2001 Justin T. Gibbs.
* Copyright (c) 1994-2001, 2004 Justin T. Gibbs.
* Copyright (c) 2000-2002 Adaptec Inc.
* All rights reserved.
*
@ -40,7 +40,7 @@
* $FreeBSD$
*/
VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic79xx.seq#119 $"
VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic79xx.seq#120 $"
PATCH_ARG_LIST = "struct ahd_softc *ahd"
PREFIX = "ahd_"
@ -110,10 +110,8 @@ check_waiting_list:
* one last time.
*/
test SSTAT0, SELDO jnz select_out;
END_CRITICAL;
call start_selection;
idle_loop_checkbus:
BEGIN_CRITICAL;
test SSTAT0, SELDO jnz select_out;
END_CRITICAL;
test SSTAT0, SELDI jnz select_in;
@ -294,7 +292,6 @@ fetch_new_scb_inprog:
test CCSCBCTL, ARRDONE jz return;
fetch_new_scb_done:
and CCSCBCTL, ~(CCARREN|CCSCBEN);
bmov REG0, SCBPTR, 2;
clr A;
add CMDS_PENDING, 1;
adc CMDS_PENDING[1], A;
@ -316,43 +313,117 @@ fetch_new_scb_done:
clr SCB_FIFO_USE_COUNT;
/* Update the next SCB address to download. */
bmov NEXT_QUEUED_SCB_ADDR, SCB_NEXT_SCB_BUSADDR, 4;
/*
* NULL out the SCB links since these fields
* occupy the same location as SCB_NEXT_SCB_BUSADDR.
*/
mvi SCB_NEXT[1], SCB_LIST_NULL;
mvi SCB_NEXT2[1], SCB_LIST_NULL;
/* Increment our position in the QINFIFO. */
mov NONE, SNSCB_QOFF;
/*
* SCBs that want to send messages are always
* queued independently. This ensures that they
* are at the head of the SCB list to select out
* to a target and we will see the MK_MESSAGE flag.
* Save SCBID of this SCB in REG0 since
* SCBPTR will be clobbered during target
* list updates. We also record the SCB's
* flags so that we can refer to them even
* after SCBPTR has been changed.
*/
bmov REG0, SCBPTR, 2;
mov A, SCB_CONTROL;
/*
* Find the tail SCB of the execution queue
* for this target.
*/
test SCB_CONTROL, MK_MESSAGE jnz first_new_target_scb;
shr SINDEX, 3, SCB_SCSIID;
and SINDEX, ~0x1;
mvi SINDEX[1], (WAITING_SCB_TAILS >> 8);
bmov DINDEX, SINDEX, 2;
bmov SCBPTR, SINDIR, 2;
/*
* Update the tail to point to the new SCB.
*/
bmov DINDIR, REG0, 2;
/*
* If the queue was empty, queue this SCB as
* the first for this target.
*/
cmp SCBPTR[1], SCB_LIST_NULL je first_new_target_scb;
/*
* SCBs that want to send messages must always be
* at the head of their per-target queue so that
* ATN can be asserted even if the current
* negotiation agreement is packetized. If the
* target queue is empty, the SCB can be queued
* immediately. If the queue is not empty, we must
* wait for it to empty before entering this SCB
* into the waiting for selection queue. Otherwise
* our batching and round-robin selection scheme
* could allow commands to be queued out of order.
* To simplify the implementation, we stop pulling
* new commands from the host until the MK_MESSAGE
* SCB can be queued to the waiting for selection
* list.
*/
test A, MK_MESSAGE jz batch_scb;
/*
* If the last SCB is also a MK_MESSAGE SCB, then
* order is preserved even if we batch.
*/
test SCB_CONTROL, MK_MESSAGE jz batch_scb;
/*
* Defer this SCB and stop fetching new SCBs until
* it can be queued. Since the SCB_SCSIID of the
* tail SCB must be the same as that of the newly
* queued SCB, there is no need to restore the SCBID
* here.
*/
or SEQ_FLAGS2, PENDING_MK_MESSAGE;
bmov MK_MESSAGE_SCB, REG0, 2;
mov MK_MESSAGE_SCSIID, SCB_SCSIID ret;
batch_scb:
/*
* Otherwise just update the previous tail SCB to
* point to the new tail.
*/
bmov SCB_NEXT, REG0, 2 ret;
first_new_target_scb:
/*
* Append SCB to the tail of the waiting for
* selection list.
*/
cmp WAITING_TID_HEAD[1], SCB_LIST_NULL je first_new_scb;
bmov SCBPTR, WAITING_TID_TAIL, 2;
bmov SCB_NEXT2, REG0, 2;
bmov WAITING_TID_TAIL, REG0, 2 ret;
first_new_scb:
/*
* Whole list is empty, so the head of
* the list must be initialized too.
*/
bmov WAITING_TID_HEAD, REG0, 2;
bmov WAITING_TID_TAIL, REG0, 2 ret;
END_CRITICAL;
scbdma_idle:
/*
* Give precedence to downloading new SCBs to execute
* unless select-outs are currently frozen.
* Don't bother downloading new SCBs to execute
* if select-outs are currently frozen or we have
* a MK_MESSAGE SCB waiting to enter the queue.
*/
test SEQ_FLAGS2, SELECTOUT_QFROZEN jnz . + 2;
test SEQ_FLAGS2, SELECTOUT_QFROZEN|PENDING_MK_MESSAGE
jnz scbdma_no_new_scbs;
BEGIN_CRITICAL;
test QOFF_CTLSTA, NEW_SCB_AVAIL jnz fetch_new_scb;
scbdma_no_new_scbs:
cmp COMPLETE_DMA_SCB_HEAD[1], SCB_LIST_NULL jne dma_complete_scb;
cmp COMPLETE_SCB_HEAD[1], SCB_LIST_NULL je return;
/* FALLTHROUGH */
@ -671,27 +742,41 @@ curscb_ww_done:
}
/*
* Requeue any SCBs not sent, to the tail of the waiting Q.
* The whole list made it. Clear our tail pointer to indicate
* that the per-target selection queue is now empty.
*/
cmp SCB_NEXT[1], SCB_LIST_NULL je select_out_list_done;
cmp SCB_NEXT[1], SCB_LIST_NULL je select_out_clear_tail;
/*
* Requeue any SCBs not sent, to the tail of the waiting Q.
* We know that neither the per-TID list nor the list of
* TIDs is empty. Use this knowledge to our advantage.
* TIDs is empty. Use this knowledge to our advantage and
* queue the remainder to the tail of the global execution
* queue.
*/
bmov REG0, SCB_NEXT, 2;
select_out_queue_remainder:
bmov SCBPTR, WAITING_TID_TAIL, 2;
bmov SCB_NEXT2, REG0, 2;
bmov WAITING_TID_TAIL, REG0, 2;
jmp select_out_inc_tid_q;
select_out_list_done:
select_out_clear_tail:
/*
* The whole list made it. Just clear our TID's tail pointer
* unless we were queued independently due to our need to
* send a message.
* Queue any pending MK_MESSAGE SCB for this target now
* that the queue is empty.
*/
test SEQ_FLAGS2, PENDING_MK_MESSAGE jz select_out_no_mk_message_scb;
mov A, MK_MESSAGE_SCSIID;
cmp SCB_SCSIID, A jne select_out_no_mk_message_scb;
and SEQ_FLAGS2, ~PENDING_MK_MESSAGE;
bmov REG0, MK_MESSAGE_SCB, 2;
jmp select_out_queue_remainder;
select_out_no_mk_message_scb:
/*
* Clear this target's execution tail and increment the queue.
*/
test SCB_CONTROL, MK_MESSAGE jnz select_out_inc_tid_q;
shr DINDEX, 3, SCB_SCSIID;
or DINDEX, 1; /* Want only the second byte */
mvi DINDEX[1], ((WAITING_SCB_TAILS) >> 8);
@ -703,8 +788,8 @@ select_out_inc_tid_q:
mvi WAITING_TID_TAIL[1], SCB_LIST_NULL;
bmov SCBPTR, CURRSCB, 2;
mvi CLRSINT0, CLRSELDO;
test LQOSTAT2, LQOPHACHGOUTPKT jnz unexpected_nonpkt_phase;
test LQOSTAT1, LQOPHACHGINPKT jnz unexpected_nonpkt_phase;
test LQOSTAT2, LQOPHACHGOUTPKT jnz unexpected_nonpkt_mode_cleared;
test LQOSTAT1, LQOPHACHGINPKT jnz unexpected_nonpkt_mode_cleared;
/*
* If this is a packetized connection, return to our
@ -2127,6 +2212,18 @@ SET_DST_MODE M_DFF0;
mvi DFFSXFRCTL, CLRCHN;
unexpected_nonpkt_mode_cleared:
mvi CLRSINT2, CLRNONPACKREQ;
if ((ahd->bugs & AHD_BUSFREEREV_BUG) != 0) {
/*
* Test to ensure that the bus has not
* already gone free prior to clearing
* any stale busfree status. This avoids
* a window whereby a busfree just after
* a selection could be missed.
*/
test SCSISIGI, BSYI jz . + 2;
mvi CLRSINT1,CLRBUSFREE;
or SIMODE1, ENBUSFREE;
}
test SCSIPHASE, ~(MSG_IN_PHASE|MSG_OUT_PHASE) jnz illegal_phase;
SET_SEQINTCODE(ENTERING_NONPACK)
jmp ITloop;

260
drivers/scsi/aic7xxx/aic79xx_core.c
View File

@ -37,7 +37,7 @@
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* $Id: //depot/aic7xxx/aic7xxx/aic79xx.c#247 $
* $Id: //depot/aic7xxx/aic7xxx/aic79xx.c#250 $
*/
#ifdef __linux__
@ -197,7 +197,8 @@ static int ahd_search_scb_list(struct ahd_softc *ahd, int target,
char channel, int lun, u_int tag,
role_t role, uint32_t status,
ahd_search_action action,
u_int *list_head, u_int tid);
u_int *list_head, u_int *list_tail,
u_int tid);
static void ahd_stitch_tid_list(struct ahd_softc *ahd,
u_int tid_prev, u_int tid_cur,
u_int tid_next);
@ -1660,7 +1661,8 @@ ahd_handle_scsiint(struct ahd_softc *ahd, u_int intstat)
* so just clear the error.
*/
ahd_outb(ahd, CLRLQIINT1, CLRLQICRCI_NLQ);
} else if ((status & BUSFREE) != 0) {
} else if ((status & BUSFREE) != 0
|| (lqistat1 & LQOBUSFREE) != 0) {
u_int lqostat1;
int restart;
int clear_fifo;
@ -2025,10 +2027,6 @@ ahd_handle_pkt_busfree(struct ahd_softc *ahd, u_int busfreetime)
u_int waiting_t;
u_int next;
if ((busfreetime & BUSFREE_LQO) == 0)
printf("%s: Warning, BUSFREE time is 0x%x. "
"Expected BUSFREE_LQO.\n",
ahd_name(ahd), busfreetime);
/*
* The LQO manager detected an unexpected busfree
* either:
@ -2251,8 +2249,14 @@ ahd_handle_nonpkt_busfree(struct ahd_softc *ahd)
struct ahd_tmode_tstate *tstate;
/*
* PPR Rejected. Try non-ppr negotiation
* and retry command.
* PPR Rejected.
*
* If the previous negotiation was packetized,
* this could be because the device has been
* reset without our knowledge. Force our
* current negotiation to async and retry the
* negotiation. Otherwise retry the command
* with non-ppr negotiation.
*/
#ifdef AHD_DEBUG
if ((ahd_debug & AHD_SHOW_MESSAGES) != 0)
@ -2261,11 +2265,34 @@ ahd_handle_nonpkt_busfree(struct ahd_softc *ahd)
tinfo = ahd_fetch_transinfo(ahd, devinfo.channel,
devinfo.our_scsiid,
devinfo.target, &tstate);
tinfo->curr.transport_version = 2;
tinfo->goal.transport_version = 2;
tinfo->goal.ppr_options = 0;
ahd_qinfifo_requeue_tail(ahd, scb);
printerror = 0;
if ((tinfo->curr.ppr_options & MSG_EXT_PPR_IU_REQ)!=0) {
ahd_set_width(ahd, &devinfo,
MSG_EXT_WDTR_BUS_8_BIT,
AHD_TRANS_CUR,
/*paused*/TRUE);
ahd_set_syncrate(ahd, &devinfo,
/*period*/0, /*offset*/0,
/*ppr_options*/0,
AHD_TRANS_CUR,
/*paused*/TRUE);
/*
* The expect PPR busfree handler below
* will effect the retry and necessary
* abort.
*/
} else {
tinfo->curr.transport_version = 2;
tinfo->goal.transport_version = 2;
tinfo->goal.ppr_options = 0;
/*
* Remove any SCBs in the waiting for selection
* queue that may also be for this target so
* that command ordering is preserved.
*/
ahd_freeze_devq(ahd, scb);
ahd_qinfifo_requeue_tail(ahd, scb);
printerror = 0;
}
} else if (ahd_sent_msg(ahd, AHDMSG_EXT, MSG_EXT_WDTR, FALSE)
&& ppr_busfree == 0) {
/*
@ -2280,6 +2307,12 @@ ahd_handle_nonpkt_busfree(struct ahd_softc *ahd)
MSG_EXT_WDTR_BUS_8_BIT,
AHD_TRANS_CUR|AHD_TRANS_GOAL,
/*paused*/TRUE);
/*
* Remove any SCBs in the waiting for selection
* queue that may also be for this target so that
* command ordering is preserved.
*/
ahd_freeze_devq(ahd, scb);
ahd_qinfifo_requeue_tail(ahd, scb);
printerror = 0;
} else if (ahd_sent_msg(ahd, AHDMSG_EXT, MSG_EXT_SDTR, FALSE)
@ -2297,6 +2330,12 @@ ahd_handle_nonpkt_busfree(struct ahd_softc *ahd)
/*ppr_options*/0,
AHD_TRANS_CUR|AHD_TRANS_GOAL,
/*paused*/TRUE);
/*
* Remove any SCBs in the waiting for selection
* queue that may also be for this target so that
* command ordering is preserved.
*/
ahd_freeze_devq(ahd, scb);
ahd_qinfifo_requeue_tail(ahd, scb);
printerror = 0;
} else if ((ahd->msg_flags & MSG_FLAG_EXPECT_IDE_BUSFREE) != 0
@ -2369,14 +2408,14 @@ ahd_handle_nonpkt_busfree(struct ahd_softc *ahd)
*/
printf("%s: ", ahd_name(ahd));
}
if (lastphase != P_BUSFREE)
ahd_force_renegotiation(ahd, &devinfo);
printf("Unexpected busfree %s, %d SCBs aborted, "
"PRGMCNT == 0x%x\n",
ahd_lookup_phase_entry(lastphase)->phasemsg,
aborted,
ahd_inw(ahd, PRGMCNT));
ahd_dump_card_state(ahd);
if (lastphase != P_BUSFREE)
ahd_force_renegotiation(ahd, &devinfo);
}
/* Always restart the sequencer. */
return (1);
@ -3315,7 +3354,6 @@ ahd_update_pending_scbs(struct ahd_softc *ahd)
{
struct scb *pending_scb;
int pending_scb_count;
u_int scb_tag;
int paused;
u_int saved_scbptr;
ahd_mode_state saved_modes;
@ -3333,7 +3371,6 @@ ahd_update_pending_scbs(struct ahd_softc *ahd)
pending_scb_count = 0;
LIST_FOREACH(pending_scb, &ahd->pending_scbs, pending_links) {
struct ahd_devinfo devinfo;
struct hardware_scb *pending_hscb;
struct ahd_initiator_tinfo *tinfo;
struct ahd_tmode_tstate *tstate;
@ -3341,11 +3378,10 @@ ahd_update_pending_scbs(struct ahd_softc *ahd)
tinfo = ahd_fetch_transinfo(ahd, devinfo.channel,
devinfo.our_scsiid,
devinfo.target, &tstate);
pending_hscb = pending_scb->hscb;
if ((tstate->auto_negotiate & devinfo.target_mask) == 0
&& (pending_scb->flags & SCB_AUTO_NEGOTIATE) != 0) {
pending_scb->flags &= ~SCB_AUTO_NEGOTIATE;
pending_hscb->control &= ~MK_MESSAGE;
pending_scb->hscb->control &= ~MK_MESSAGE;
}
ahd_sync_scb(ahd, pending_scb,
BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
@ -3377,18 +3413,15 @@ ahd_update_pending_scbs(struct ahd_softc *ahd)
ahd_outb(ahd, SCSISEQ0, ahd_inb(ahd, SCSISEQ0) & ~ENSELO);
saved_scbptr = ahd_get_scbptr(ahd);
/* Ensure that the hscbs down on the card match the new information */
for (scb_tag = 0; scb_tag < ahd->scb_data.maxhscbs; scb_tag++) {
struct hardware_scb *pending_hscb;
LIST_FOREACH(pending_scb, &ahd->pending_scbs, pending_links) {
u_int scb_tag;
u_int control;
pending_scb = ahd_lookup_scb(ahd, scb_tag);
if (pending_scb == NULL)
continue;
scb_tag = SCB_GET_TAG(pending_scb);
ahd_set_scbptr(ahd, scb_tag);
pending_hscb = pending_scb->hscb;
control = ahd_inb_scbram(ahd, SCB_CONTROL);
control &= ~MK_MESSAGE;
control |= pending_hscb->control & MK_MESSAGE;
control |= pending_scb->hscb->control & MK_MESSAGE;
ahd_outb(ahd, SCB_CONTROL, control);
}
ahd_set_scbptr(ahd, saved_scbptr);
@ -6500,13 +6533,14 @@ ahd_chip_init(struct ahd_softc *ahd)
| ENLQIOVERI_LQ|ENLQIOVERI_NLQ);
ahd_outb(ahd, LQOMODE0, ENLQOATNLQ|ENLQOATNPKT|ENLQOTCRC);
/*
* An interrupt from LQOBUSFREE is made redundant by the
* BUSFREE interrupt. We choose to have the sequencer catch
* LQOPHCHGINPKT errors manually for the command phase at the
* start of a packetized selection case.
ahd_outb(ahd, LQOMODE1, ENLQOBUSFREE|ENLQOPHACHGINPKT);
* We choose to have the sequencer catch LQOPHCHGINPKT errors
* manually for the command phase at the start of a packetized
* selection case. ENLQOBUSFREE should be made redundant by
* the BUSFREE interrupt, but it seems that some LQOBUSFREE
* events fail to assert the BUSFREE interrupt so we must
* also enable LQOBUSFREE interrupts.
*/
ahd_outb(ahd, LQOMODE1, 0);
ahd_outb(ahd, LQOMODE1, ENLQOBUSFREE);
/*
* Setup sequencer interrupt handlers.
@ -6617,6 +6651,8 @@ ahd_chip_init(struct ahd_softc *ahd)
/* We don't have any waiting selections */
ahd_outw(ahd, WAITING_TID_HEAD, SCB_LIST_NULL);
ahd_outw(ahd, WAITING_TID_TAIL, SCB_LIST_NULL);
ahd_outw(ahd, MK_MESSAGE_SCB, SCB_LIST_NULL);
ahd_outw(ahd, MK_MESSAGE_SCSIID, 0xFF);
for (i = 0; i < AHD_NUM_TARGETS; i++)
ahd_outw(ahd, WAITING_SCB_TAILS + (2 * i), SCB_LIST_NULL);
@ -7260,12 +7296,28 @@ ahd_reset_cmds_pending(struct ahd_softc *ahd)
ahd->flags &= ~AHD_UPDATE_PEND_CMDS;
}
void
ahd_done_with_status(struct ahd_softc *ahd, struct scb *scb, uint32_t status)
{
cam_status ostat;
cam_status cstat;
ostat = ahd_get_transaction_status(scb);
if (ostat == CAM_REQ_INPROG)
ahd_set_transaction_status(scb, status);
cstat = ahd_get_transaction_status(scb);
if (cstat != CAM_REQ_CMP)
ahd_freeze_scb(scb);
ahd_done(ahd, scb);
}
int
ahd_search_qinfifo(struct ahd_softc *ahd, int target, char channel,
int lun, u_int tag, role_t role, uint32_t status,
ahd_search_action action)
{
struct scb *scb;
struct scb *mk_msg_scb;
struct scb *prev_scb;
ahd_mode_state saved_modes;
u_int qinstart;
@ -7274,6 +7326,7 @@ ahd_search_qinfifo(struct ahd_softc *ahd, int target, char channel,
u_int tid_next;
u_int tid_prev;
u_int scbid;
u_int seq_flags2;
u_int savedscbptr;
uint32_t busaddr;
int found;
@ -7329,23 +7382,10 @@ ahd_search_qinfifo(struct ahd_softc *ahd, int target, char channel,
found++;
switch (action) {
case SEARCH_COMPLETE:
{
cam_status ostat;
cam_status cstat;
ostat = ahd_get_transaction_status(scb);
if (ostat == CAM_REQ_INPROG)
ahd_set_transaction_status(scb,
status);
cstat = ahd_get_transaction_status(scb);
if (cstat != CAM_REQ_CMP)
ahd_freeze_scb(scb);
if ((scb->flags & SCB_ACTIVE) == 0)
printf("Inactive SCB in qinfifo\n");
ahd_done(ahd, scb);
ahd_done_with_status(ahd, scb, status);
/* FALLTHROUGH */
}
case SEARCH_REMOVE:
break;
case SEARCH_PRINT:
@ -7375,21 +7415,24 @@ ahd_search_qinfifo(struct ahd_softc *ahd, int target, char channel,
* looking for matches.
*/
ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
seq_flags2 = ahd_inb(ahd, SEQ_FLAGS2);
if ((seq_flags2 & PENDING_MK_MESSAGE) != 0) {
scbid = ahd_inw(ahd, MK_MESSAGE_SCB);
mk_msg_scb = ahd_lookup_scb(ahd, scbid);
} else
mk_msg_scb = NULL;
savedscbptr = ahd_get_scbptr(ahd);
tid_next = ahd_inw(ahd, WAITING_TID_HEAD);
tid_prev = SCB_LIST_NULL;
targets = 0;
for (scbid = tid_next; !SCBID_IS_NULL(scbid); scbid = tid_next) {
u_int tid_head;
u_int tid_tail;
/*
* We limit based on the number of SCBs since
* MK_MESSAGE SCBs are not in the per-tid lists.
*/
targets++;
if (targets > AHD_SCB_MAX) {
if (targets > AHD_NUM_TARGETS)
panic("TID LIST LOOP");
}
if (scbid >= ahd->scb_data.numscbs) {
printf("%s: Waiting TID List inconsistency. "
"SCB index == 0x%x, yet numscbs == 0x%x.",
@ -7419,8 +7462,71 @@ ahd_search_qinfifo(struct ahd_softc *ahd, int target, char channel,
tid_head = scbid;
found += ahd_search_scb_list(ahd, target, channel,
lun, tag, role, status,
action, &tid_head,
action, &tid_head, &tid_tail,
SCB_GET_TARGET(ahd, scb));
/*
* Check any MK_MESSAGE SCB that is still waiting to
* enter this target's waiting for selection queue.
*/
if (mk_msg_scb != NULL
&& ahd_match_scb(ahd, mk_msg_scb, target, channel,
lun, tag, role)) {
/*
* We found an scb that needs to be acted on.
*/
found++;
switch (action) {
case SEARCH_COMPLETE:
if ((mk_msg_scb->flags & SCB_ACTIVE) == 0)
printf("Inactive SCB pending MK_MSG\n");
ahd_done_with_status(ahd, mk_msg_scb, status);
/* FALLTHROUGH */
case SEARCH_REMOVE:
{
u_int tail_offset;
printf("Removing MK_MSG scb\n");
/*
* Reset our tail to the tail of the
* main per-target list.
*/
tail_offset = WAITING_SCB_TAILS
+ (2 * SCB_GET_TARGET(ahd, mk_msg_scb));
ahd_outw(ahd, tail_offset, tid_tail);
seq_flags2 &= ~PENDING_MK_MESSAGE;
ahd_outb(ahd, SEQ_FLAGS2, seq_flags2);
ahd_outw(ahd, CMDS_PENDING,
ahd_inw(ahd, CMDS_PENDING)-1);
mk_msg_scb = NULL;
break;
}
case SEARCH_PRINT:
printf(" 0x%x", SCB_GET_TAG(scb));
/* FALLTHROUGH */
case SEARCH_COUNT:
break;
}
}
if (mk_msg_scb != NULL
&& SCBID_IS_NULL(tid_head)
&& ahd_match_scb(ahd, scb, target, channel, CAM_LUN_WILDCARD,
SCB_LIST_NULL, ROLE_UNKNOWN)) {
/*
* When removing the last SCB for a target
* queue with a pending MK_MESSAGE scb, we
* must queue the MK_MESSAGE scb.
*/
printf("Queueing mk_msg_scb\n");
tid_head = ahd_inw(ahd, MK_MESSAGE_SCB);
seq_flags2 &= ~PENDING_MK_MESSAGE;
ahd_outb(ahd, SEQ_FLAGS2, seq_flags2);
mk_msg_scb = NULL;
}
if (tid_head != scbid)
ahd_stitch_tid_list(ahd, tid_prev, tid_head, tid_next);
if (!SCBID_IS_NULL(tid_head))
@ -7428,6 +7534,8 @@ ahd_search_qinfifo(struct ahd_softc *ahd, int target, char channel,
if (action == SEARCH_PRINT)
printf(")\n");
}
/* Restore saved state. */
ahd_set_scbptr(ahd, savedscbptr);
ahd_restore_modes(ahd, saved_modes);
return (found);
@ -7436,7 +7544,8 @@ ahd_search_qinfifo(struct ahd_softc *ahd, int target, char channel,
static int
ahd_search_scb_list(struct ahd_softc *ahd, int target, char channel,
int lun, u_int tag, role_t role, uint32_t status,
ahd_search_action action, u_int *list_head, u_int tid)
ahd_search_action action, u_int *list_head,
u_int *list_tail, u_int tid)
{
struct scb *scb;
u_int scbid;
@ -7448,6 +7557,7 @@ ahd_search_scb_list(struct ahd_softc *ahd, int target, char channel,
found = 0;
prev = SCB_LIST_NULL;
next = *list_head;
*list_tail = SCB_LIST_NULL;
for (scbid = next; !SCBID_IS_NULL(scbid); scbid = next) {
if (scbid >= ahd->scb_data.numscbs) {
printf("%s:SCB List inconsistency. "
@ -7463,6 +7573,7 @@ ahd_search_scb_list(struct ahd_softc *ahd, int target, char channel,
panic("Waiting List traversal\n");
}
ahd_set_scbptr(ahd, scbid);
*list_tail = scbid;
next = ahd_inw_scbram(ahd, SCB_NEXT);
if (ahd_match_scb(ahd, scb, target, channel,
lun, SCB_LIST_NULL, role) == 0) {
@ -7472,24 +7583,14 @@ ahd_search_scb_list(struct ahd_softc *ahd, int target, char channel,
found++;
switch (action) {
case SEARCH_COMPLETE:
{
cam_status ostat;
cam_status cstat;
ostat = ahd_get_transaction_status(scb);
if (ostat == CAM_REQ_INPROG)
ahd_set_transaction_status(scb, status);
cstat = ahd_get_transaction_status(scb);
if (cstat != CAM_REQ_CMP)
ahd_freeze_scb(scb);
if ((scb->flags & SCB_ACTIVE) == 0)
printf("Inactive SCB in Waiting List\n");
ahd_done(ahd, scb);
ahd_done_with_status(ahd, scb, status);
/* FALLTHROUGH */
}
case SEARCH_REMOVE:
ahd_rem_wscb(ahd, scbid, prev, next, tid);
if (prev == SCB_LIST_NULL)
*list_tail = prev;
if (SCBID_IS_NULL(prev))
*list_head = next;
break;
case SEARCH_PRINT:
@ -7558,14 +7659,17 @@ ahd_rem_wscb(struct ahd_softc *ahd, u_int scbid,
}
/*
* SCBs that had MK_MESSAGE set in them will not
* be queued to the per-target lists, so don't
* blindly clear the tail pointer.
* SCBs that have MK_MESSAGE set in them may
* cause the tail pointer to be updated without
* setting the next pointer of the previous tail.
* Only clear the tail if the removed SCB was
* the tail.
*/
tail_offset = WAITING_SCB_TAILS + (2 * tid);
if (SCBID_IS_NULL(next)
&& ahd_inw(ahd, tail_offset) == scbid)
ahd_outw(ahd, tail_offset, prev);
ahd_add_scb_to_free_list(ahd, scbid);
return (next);
}
@ -8793,6 +8897,9 @@ ahd_dump_card_state(struct ahd_softc *ahd)
* Mode independent registers.
*/
cur_col = 0;
ahd_intstat_print(ahd_inb(ahd, INTSTAT), &cur_col, 50);
ahd_seloid_print(ahd_inb(ahd, SELOID), &cur_col, 50);
ahd_selid_print(ahd_inb(ahd, SELID), &cur_col, 50);
ahd_hs_mailbox_print(ahd_inb(ahd, LOCAL_HS_MAILBOX), &cur_col, 50);
ahd_intctl_print(ahd_inb(ahd, INTCTL), &cur_col, 50);
ahd_seqintstat_print(ahd_inb(ahd, SEQINTSTAT), &cur_col, 50);
@ -8808,6 +8915,12 @@ ahd_dump_card_state(struct ahd_softc *ahd)
ahd_seqintctl_print(ahd_inb(ahd, SEQINTCTL), &cur_col, 50);
ahd_seq_flags_print(ahd_inb(ahd, SEQ_FLAGS), &cur_col, 50);
ahd_seq_flags2_print(ahd_inb(ahd, SEQ_FLAGS2), &cur_col, 50);
ahd_qfreeze_count_print(ahd_inw(ahd, QFREEZE_COUNT), &cur_col, 50);
ahd_kernel_qfreeze_count_print(ahd_inw(ahd, KERNEL_QFREEZE_COUNT),
&cur_col, 50);
ahd_mk_message_scb_print(ahd_inw(ahd, MK_MESSAGE_SCB), &cur_col, 50);
ahd_mk_message_scsiid_print(ahd_inb(ahd, MK_MESSAGE_SCSIID),
&cur_col, 50);
ahd_sstat0_print(ahd_inb(ahd, SSTAT0), &cur_col, 50);
ahd_sstat1_print(ahd_inb(ahd, SSTAT1), &cur_col, 50);
ahd_sstat2_print(ahd_inb(ahd, SSTAT2), &cur_col, 50);
@ -8915,7 +9028,7 @@ ahd_dump_card_state(struct ahd_softc *ahd)
ahd_set_modes(ahd, AHD_MODE_DFF0 + i, AHD_MODE_DFF0 + i);
fifo_scbptr = ahd_get_scbptr(ahd);
printf("\n%s: FIFO%d %s, LONGJMP == 0x%x, SCB 0x%x\n",
printf("\n\n%s: FIFO%d %s, LONGJMP == 0x%x, SCB 0x%x\n",
ahd_name(ahd), i,
(dffstat & (FIFO0FREE << i)) ? "Free" : "Active",
ahd_inw(ahd, LONGJMP_ADDR), fifo_scbptr);
@ -8970,6 +9083,9 @@ ahd_dump_card_state(struct ahd_softc *ahd)
printf("%s: OS_SPACE_CNT = 0x%x MAXCMDCNT = 0x%x\n",
ahd_name(ahd), ahd_inb(ahd, OS_SPACE_CNT),
ahd_inb(ahd, MAXCMDCNT));
printf("%s: SAVED_SCSIID = 0x%x SAVED_LUN = 0x%x\n",
ahd_name(ahd), ahd_inb(ahd, SAVED_SCSIID),
ahd_inb(ahd, SAVED_LUN));
ahd_simode0_print(ahd_inb(ahd, SIMODE0), &cur_col, 50);
printf("\n");
ahd_set_modes(ahd, AHD_MODE_CCHAN, AHD_MODE_CCHAN);

7
drivers/scsi/aic7xxx/aic79xx_inline.h
View File

@ -37,7 +37,7 @@
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* $Id: //depot/aic7xxx/aic7xxx/aic79xx_inline.h#58 $
* $Id: //depot/aic7xxx/aic7xxx/aic79xx_inline.h#59 $
*
* $FreeBSD$
*/
@ -804,9 +804,10 @@ ahd_queue_scb(struct ahd_softc *ahd, struct scb *scb)
uint64_t host_dataptr;
host_dataptr = ahd_le64toh(scb->hscb->dataptr);
printf("%s: Queueing SCB 0x%x bus addr 0x%x - 0x%x%x/0x%x\n",
printf("%s: Queueing SCB %d:0x%x bus addr 0x%x - 0x%x%x/0x%x\n",
ahd_name(ahd),
SCB_GET_TAG(scb), ahd_le32toh(scb->hscb->hscb_busaddr),
SCB_GET_TAG(scb), scb->hscb->scsiid,
ahd_le32toh(scb->hscb->hscb_busaddr),
(u_int)((host_dataptr >> 32) & 0xFFFFFFFF),
(u_int)(host_dataptr & 0xFFFFFFFF),
ahd_le32toh(scb->hscb->datacnt));

2
drivers/scsi/aic7xxx/aic79xx_osm.h
View File

@ -36,7 +36,7 @@
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_osm.h#137 $
* $Id: //depot/aic7xxx/linux/drivers/scsi/aic7xxx/aic79xx_osm.h#166 $
*
*/
#ifndef _AIC79XX_LINUX_H_

17
drivers/scsi/aic7xxx/aic79xx_osm_pci.c
View File

@ -220,10 +220,10 @@ ahd_linux_pci_reserve_io_regions(struct ahd_softc *ahd, u_long *base,
*base2 = pci_resource_start(ahd->dev_softc, 3);
if (*base == 0 || *base2 == 0)
return (ENOMEM);
if (request_region(*base, 256, "aic79xx") == 0)
if (!request_region(*base, 256, "aic79xx"))
return (ENOMEM);
if (request_region(*base2, 256, "aic79xx") == 0) {
release_region(*base2, 256);
if (!request_region(*base2, 256, "aic79xx")) {
release_region(*base, 256);
return (ENOMEM);
}
return (0);
@ -237,7 +237,7 @@ ahd_linux_pci_reserve_mem_region(struct ahd_softc *ahd,
u_long start;
u_long base_page;
u_long base_offset;
int error;
int error = 0;
if (aic79xx_allow_memio == 0)
return (ENOMEM);
@ -245,16 +245,15 @@ ahd_linux_pci_reserve_mem_region(struct ahd_softc *ahd,
if ((ahd->bugs & AHD_PCIX_MMAPIO_BUG) != 0)
return (ENOMEM);
error = 0;
start = pci_resource_start(ahd->dev_softc, 1);
base_page = start & PAGE_MASK;
base_offset = start - base_page;
if (start != 0) {
*bus_addr = start;
if (request_mem_region(start, 0x1000, "aic79xx") == 0)
if (!request_mem_region(start, 0x1000, "aic79xx"))
error = ENOMEM;
if (error == 0) {
*maddr = ioremap_nocache(base_page, base_offset + 256);
if (!error) {
*maddr = ioremap_nocache(base_page, base_offset + 512);
if (*maddr == NULL) {
error = ENOMEM;
release_mem_region(start, 0x1000);
@ -344,7 +343,7 @@ ahd_pci_map_int(struct ahd_softc *ahd)
error = request_irq(ahd->dev_softc->irq, ahd_linux_isr,
SA_SHIRQ, "aic79xx", ahd);
if (error == 0)
if (!error)
ahd->platform_data->irq = ahd->dev_softc->irq;
return (-error);

27
drivers/scsi/aic7xxx/aic79xx_reg.h_shipped
View File

@ -2,8 +2,8 @@
* DO NOT EDIT - This file is automatically generated
* from the following source files:
*
* $Id: //depot/aic7xxx/aic7xxx/aic79xx.seq#119 $
* $Id: //depot/aic7xxx/aic7xxx/aic79xx.reg#76 $
* $Id: //depot/aic7xxx/aic7xxx/aic79xx.seq#120 $
* $Id: //depot/aic7xxx/aic7xxx/aic79xx.reg#77 $
*/
typedef int (ahd_reg_print_t)(u_int, u_int *, u_int);
typedef struct ahd_reg_parse_entry {
@ -2203,6 +2203,20 @@ ahd_reg_print_t ahd_cmdsize_table_print;
ahd_print_register(NULL, 0, "CMDSIZE_TABLE", 0x158, regvalue, cur_col, wrap)
#endif
#if AIC_DEBUG_REGISTERS
ahd_reg_print_t ahd_mk_message_scb_print;
#else
#define ahd_mk_message_scb_print(regvalue, cur_col, wrap) \
ahd_print_register(NULL, 0, "MK_MESSAGE_SCB", 0x160, regvalue, cur_col, wrap)
#endif
#if AIC_DEBUG_REGISTERS
ahd_reg_print_t ahd_mk_message_scsiid_print;
#else
#define ahd_mk_message_scsiid_print(regvalue, cur_col, wrap) \
ahd_print_register(NULL, 0, "MK_MESSAGE_SCSIID", 0x162, regvalue, cur_col, wrap)
#endif
#if AIC_DEBUG_REGISTERS
ahd_reg_print_t ahd_scb_base_print;
#else
@ -3638,6 +3652,7 @@ ahd_reg_print_t ahd_scb_disconnected_lists_print;
#define SEQ_FLAGS2 0x14d
#define SELECTOUT_QFROZEN 0x04
#define TARGET_MSG_PENDING 0x02
#define PENDING_MK_MESSAGE 0x01
#define ALLOCFIFO_SCBPTR 0x14e
@ -3655,6 +3670,10 @@ ahd_reg_print_t ahd_scb_disconnected_lists_print;
#define CMDSIZE_TABLE 0x158
#define MK_MESSAGE_SCB 0x160
#define MK_MESSAGE_SCSIID 0x162
#define SCB_BASE 0x180
#define SCB_RESIDUAL_DATACNT 0x180
@ -3800,5 +3819,5 @@ ahd_reg_print_t ahd_scb_disconnected_lists_print;
/* Exported Labels */
#define LABEL_seq_isr 0x285
#define LABEL_timer_isr 0x281
#define LABEL_seq_isr 0x28f
#define LABEL_timer_isr 0x28b

21
drivers/scsi/aic7xxx/aic79xx_reg_print.c_shipped
View File

@ -2,8 +2,8 @@
* DO NOT EDIT - This file is automatically generated
* from the following source files:
*
* $Id: //depot/aic7xxx/aic7xxx/aic79xx.seq#118 $
* $Id: //depot/aic7xxx/aic7xxx/aic79xx.reg#75 $
* $Id: //depot/aic7xxx/aic7xxx/aic79xx.seq#120 $
* $Id: //depot/aic7xxx/aic7xxx/aic79xx.reg#77 $
*/
#include "aic79xx_osm.h"
@ -3382,6 +3382,7 @@ ahd_initiator_tag_print(u_int regvalue, u_int *cur_col, u_int wrap)
}
static ahd_reg_parse_entry_t SEQ_FLAGS2_parse_table[] = {
{ "PENDING_MK_MESSAGE", 0x01, 0x01 },
{ "TARGET_MSG_PENDING", 0x02, 0x02 },
{ "SELECTOUT_QFROZEN", 0x04, 0x04 }
};
@ -3389,7 +3390,7 @@ static ahd_reg_parse_entry_t SEQ_FLAGS2_parse_table[] = {
int
ahd_seq_flags2_print(u_int regvalue, u_int *cur_col, u_int wrap)
{
return (ahd_print_register(SEQ_FLAGS2_parse_table, 2, "SEQ_FLAGS2",
return (ahd_print_register(SEQ_FLAGS2_parse_table, 3, "SEQ_FLAGS2",
0x14d, regvalue, cur_col, wrap));
}
@ -3449,6 +3450,20 @@ ahd_cmdsize_table_print(u_int regvalue, u_int *cur_col, u_int wrap)
0x158, regvalue, cur_col, wrap));
}
int
ahd_mk_message_scb_print(u_int regvalue, u_int *cur_col, u_int wrap)
{
return (ahd_print_register(NULL, 0, "MK_MESSAGE_SCB",
0x160, regvalue, cur_col, wrap));
}
int
ahd_mk_message_scsiid_print(u_int regvalue, u_int *cur_col, u_int wrap)
{
return (ahd_print_register(NULL, 0, "MK_MESSAGE_SCSIID",
0x162, regvalue, cur_col, wrap));
}
int
ahd_scb_base_print(u_int regvalue, u_int *cur_col, u_int wrap)
{

881
drivers/scsi/aic7xxx/aic79xx_seq.h_shipped
View File

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