/*
* 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.
*
*
* $FreeBSD$
*/
-VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic79xx.reg#70 $"
+VERSION = "$Id: //depot/aic7xxx/aic7xxx/aic79xx.reg#77 $"
/*
* This file is processed by the aic7xxx_asm utility for use in assembling
mvi MODE_PTR, MK_MODE(src, dst); \
}
-#define TOGGLE_DFF_MODE \
- if ((ahd->bugs & AHD_SET_MODE_BUG) != 0) { \
- call toggle_dff_mode_work_around; \
- } else { \
- xor MODE_PTR, MK_MODE(M_DFF1, M_DFF1); \
- }
-
#define RESTORE_MODE(mode) \
if ((ahd->bugs & AHD_SET_MODE_BUG) != 0) { \
mov mode call set_mode_work_around; \
/*
* LQ Packet In
- * The last LQ Packet received
+ * The last LQ Packet recieved
*/
register LQIN {
address 0x020
COMPLETE_DMA_SCB_HEAD {
size 2
}
- /* Counting semaphore to prevent new select-outs */
+ /*
+ * tail of list of SCBs that have
+ * completed but need to be uploaded
+ * to the host prior to being completed.
+ */
+ COMPLETE_DMA_SCB_TAIL {
+ size 2
+ }
+ /*
+ * head of list of SCBs that have
+ * been uploaded to the host, but cannot
+ * be completed until the QFREEZE is in
+ * full effect (i.e. no selections pending).
+ */
+ COMPLETE_ON_QFREEZE_HEAD {
+ size 2
+ }
+ /*
+ * Counting semaphore to prevent new select-outs
+ * The queue is frozen so long as the sequencer
+ * and kernel freeze counts differ.
+ */
QFREEZE_COUNT {
size 2
}
+ KERNEL_QFREEZE_COUNT {
+ size 2
+ }
/*
* Mode to restore on legacy idle loop exit.
*/
QOUTFIFO_ENTRY_VALID_TAG {
size 1
}
+ /*
+ * Kernel and sequencer offsets into the queue of
+ * incoming target mode command descriptors. The
+ * queue is full when the KERNEL_TQINPOS == TQINPOS.
+ */
+ KERNEL_TQINPOS {
+ size 1
+ }
+ TQINPOS {
+ size 1
+ }
/*
* Base address of our shared data with the kernel driver in host
* memory. This includes the qoutfifo and target mode
QOUTFIFO_NEXT_ADDR {
size 4
}
- /*
- * Kernel and sequencer offsets into the queue of
- * incoming target mode command descriptors. The
- * queue is full when the KERNEL_TQINPOS == TQINPOS.
- */
- KERNEL_TQINPOS {
- size 1
- }
- TQINPOS {
- size 1
- }
ARG_1 {
size 1
mask SEND_MSG 0x80
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 {
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 ****************************/
const SG_SIZEOF download
const PKT_OVERRUN_BUFOFFSET download
const SCB_TRANSFER_SIZE download
+const CACHELINE_MASK download
/*
* BIOS SCB offsets