diff options
Diffstat (limited to 'hw')
| -rw-r--r-- | hw/lsi53c895a.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/hw/lsi53c895a.c b/hw/lsi53c895a.c index 84a4992..e4b51a8 100644 --- a/hw/lsi53c895a.c +++ b/hw/lsi53c895a.c @@ -853,6 +853,18 @@ static void lsi_do_msgout(LSIState *s) { uint8_t msg; int len; + uint32_t current_tag; + SCSIDevice *current_dev; + lsi_request *p, *p_next; + int id; + + if (s->current) { + current_tag = s->current->tag; + } else { + current_tag = s->select_tag; + } + id = (current_tag >> 8) & 0xf; + current_dev = s->bus.devs[id]; DPRINTF("MSG out len=%d\n", s->dbc); while (s->dbc) { @@ -898,6 +910,51 @@ static void lsi_do_msgout(LSIState *s) BADF("ORDERED queue not implemented\n"); s->select_tag |= lsi_get_msgbyte(s) | LSI_TAG_VALID; break; + case 0x0d: + /* The ABORT TAG message clears the current I/O process only. */ + DPRINTF("MSG: ABORT TAG tag=0x%x\n", current_tag); + current_dev->info->cancel_io(current_dev, current_tag); + lsi_disconnect(s); + break; + case 0x06: + case 0x0e: + case 0x0c: + /* The ABORT message clears all I/O processes for the selecting + initiator on the specified logical unit of the target. */ + if (msg == 0x06) { + DPRINTF("MSG: ABORT tag=0x%x\n", current_tag); + } + /* The CLEAR QUEUE message clears all I/O processes for all + initiators on the specified logical unit of the target. */ + if (msg == 0x0e) { + DPRINTF("MSG: CLEAR QUEUE tag=0x%x\n", current_tag); + } + /* The BUS DEVICE RESET message clears all I/O processes for all + initiators on all logical units of the target. */ + if (msg == 0x0c) { + DPRINTF("MSG: BUS DEVICE RESET tag=0x%x\n", current_tag); + } + + /* clear the current I/O process */ + current_dev->info->cancel_io(current_dev, current_tag); + + /* As the current implemented devices scsi_disk and scsi_generic + only support one LUN, we don't need to keep track of LUNs. + Clearing I/O processes for other initiators could be possible + for scsi_generic by sending a SG_SCSI_RESET to the /dev/sgX + device, but this is currently not implemented (and seems not + to be really necessary). So let's simply clear all queued + commands for the current device: */ + id = current_tag & 0x0000ff00; + QTAILQ_FOREACH_SAFE(p, &s->queue, next, p_next) { + if ((p->tag & 0x0000ff00) == id) { + current_dev->info->cancel_io(current_dev, p->tag); + QTAILQ_REMOVE(&s->queue, p, next); + } + } + + lsi_disconnect(s); + break; default: if ((msg & 0x80) == 0) { goto bad; |