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Off by one error in -MSG-START+0 was just Justin being tired -- revert to

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old value.

Remove unnecessary check for active messages in setup SCB.  This same test
would also jump to p_mesgin_done which would "ACK" an extra time possibly
confusing the target.

Tell the kernel driver whenever we send an ABORT_TAG message.
This commit is contained in:
Justin T. Gibbs 1995-04-01 19:51:40 +00:00
parent ef230bdf24
commit cc865dd008
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=7562
2 changed files with 10 additions and 12 deletions
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11
sys/dev/aic7xxx/aic7xxx.seq
View File

@ -22,7 +22,7 @@
# optimizations provided by Justin T. Gibbs (gibbs@FreeBSD.org)
#
VERSION AIC7XXX_SEQ_VER "$Id: aic7xxx.seq,v 1.10 1995/03/17 23:54:17 gibbs Exp $"
VERSION AIC7XXX_SEQ_VER "$Id: aic7xxx.seq,v 1.11 1995/03/31 14:06:02 gibbs Exp $"
SCBMASK = 0x1f
@ -130,6 +130,7 @@ MSG_WDTR = 0x51 # WDTR message recieved
MSG_REJECT = 0x61 # Reject message recieved
BAD_STATUS = 0x71 # Bad status from target
RESIDUAL = 0x81 # Residual byte count != 0
ABORT_TAG = 0x91 # Sent an ABORT_TAG message
# The host adapter card (at least the BIOS) uses 20-2f for SCSI
# device information, 32-33 and 5a-5f as well. As it turns out, the
@ -172,7 +173,7 @@ MSG_START+2 = 0x37
MSG_START+3 = 0x38
MSG_START+4 = 0x39
MSG_START+5 = 0x3a
-MSG_START+0 = 0xcc # 2's complement of MSG_START+0
-MSG_START+0 = 0xcb # 2's complement of MSG_START+0
ARG_1 = 0x4a # sdtr conversion args & return
BUS_16_BIT = 0x01
@ -770,8 +771,6 @@ use_findSCB:
# untoward has happened and we should just leave it alone.
#
setup_SCB:
test FLAGS,ACTIVE_MSG jnz p_mesgin_done
and SCBARRAY+0,0xfb # clear disconnect bit in SCB
or FLAGS,0xc0 # make note of IDENTIFY
@ -786,7 +785,7 @@ get_tag:
mov A,SAVED_TCL
cmp SCBARRAY+1,A jne abort_tag
test SCBARRAY+0,TAG_ENB jz abort_tag
call inb_last
call inb_last # ACK
jmp setup_SCB
# Message reject? Let the kernel driver handle this. If we have an
@ -825,7 +824,7 @@ p_mesgin_done:
abort_tag:
or SINDEX,0x10,SIGSTATE # turn on ATNO
call scsisig
# mvi INTSTAT,ABORT_TAG # let driver know
mvi INTSTAT,ABORT_TAG # let driver know
mvi 0xd call mk_mesg # ABORT TAG message
jmp p_mesgin_done

11
sys/gnu/misc/aic7xxx/aic7xxx.seq
View File

@ -22,7 +22,7 @@
# optimizations provided by Justin T. Gibbs (gibbs@FreeBSD.org)
#
VERSION AIC7XXX_SEQ_VER "$Id: aic7xxx.seq,v 1.10 1995/03/17 23:54:17 gibbs Exp $"
VERSION AIC7XXX_SEQ_VER "$Id: aic7xxx.seq,v 1.11 1995/03/31 14:06:02 gibbs Exp $"
SCBMASK = 0x1f
@ -130,6 +130,7 @@ MSG_WDTR = 0x51 # WDTR message recieved
MSG_REJECT = 0x61 # Reject message recieved
BAD_STATUS = 0x71 # Bad status from target
RESIDUAL = 0x81 # Residual byte count != 0
ABORT_TAG = 0x91 # Sent an ABORT_TAG message
# The host adapter card (at least the BIOS) uses 20-2f for SCSI
# device information, 32-33 and 5a-5f as well. As it turns out, the
@ -172,7 +173,7 @@ MSG_START+2 = 0x37
MSG_START+3 = 0x38
MSG_START+4 = 0x39
MSG_START+5 = 0x3a
-MSG_START+0 = 0xcc # 2's complement of MSG_START+0
-MSG_START+0 = 0xcb # 2's complement of MSG_START+0
ARG_1 = 0x4a # sdtr conversion args & return
BUS_16_BIT = 0x01
@ -770,8 +771,6 @@ use_findSCB:
# untoward has happened and we should just leave it alone.
#
setup_SCB:
test FLAGS,ACTIVE_MSG jnz p_mesgin_done
and SCBARRAY+0,0xfb # clear disconnect bit in SCB
or FLAGS,0xc0 # make note of IDENTIFY
@ -786,7 +785,7 @@ get_tag:
mov A,SAVED_TCL
cmp SCBARRAY+1,A jne abort_tag
test SCBARRAY+0,TAG_ENB jz abort_tag
call inb_last
call inb_last # ACK
jmp setup_SCB
# Message reject? Let the kernel driver handle this. If we have an
@ -825,7 +824,7 @@ p_mesgin_done:
abort_tag:
or SINDEX,0x10,SIGSTATE # turn on ATNO
call scsisig
# mvi INTSTAT,ABORT_TAG # let driver know
mvi INTSTAT,ABORT_TAG # let driver know
mvi 0xd call mk_mesg # ABORT TAG message
jmp p_mesgin_done