static int32_t scsi_unit_attention(SCSIRequest *req, uint8_t *buf)
{
if (req->dev && req->dev->unit_attention.key == UNIT_ATTENTION) {
scsi_req_build_sense(req, req->dev->unit_attention);
} else if (req->bus->unit_attention.key == UNIT_ATTENTION) {
scsi_req_build_sense(req, req->bus->unit_attention);
}
scsi_req_complete(req, CHECK_CONDITION);
return 0;
}
/* Helper function for command completion. */
static void scsi_command_complete(void *opaque, int ret)
{
int status;
SCSIGenericReq *r = (SCSIGenericReq *)opaque;
r->req.aiocb = NULL;
if (r->req.io_canceled) {
scsi_req_cancel_complete(&r->req);
goto done;
}
if (r->io_header.driver_status & SG_ERR_DRIVER_SENSE) {
r->req.sense_len = r->io_header.sb_len_wr;
}
if (ret != 0) {
switch (ret) {
case -EDOM:
status = TASK_SET_FULL;
break;
case -ENOMEM:
status = CHECK_CONDITION;
scsi_req_build_sense(&r->req, SENSE_CODE(TARGET_FAILURE));
break;
default:
status = CHECK_CONDITION;
scsi_req_build_sense(&r->req, SENSE_CODE(IO_ERROR));
break;
}
} else {
if (r->io_header.host_status == SG_ERR_DID_NO_CONNECT ||
r->io_header.host_status == SG_ERR_DID_BUS_BUSY ||
r->io_header.host_status == SG_ERR_DID_TIME_OUT ||
(r->io_header.driver_status & SG_ERR_DRIVER_TIMEOUT)) {
status = BUSY;
BADF("Driver Timeout\n");
} else if (r->io_header.host_status) {
status = CHECK_CONDITION;
scsi_req_build_sense(&r->req, SENSE_CODE(I_T_NEXUS_LOSS));
} else if (r->io_header.status) {
status = r->io_header.status;
} else if (r->io_header.driver_status & SG_ERR_DRIVER_SENSE) {
status = CHECK_CONDITION;
} else {
status = GOOD;
}
}
DPRINTF("Command complete 0x%p tag=0x%x status=%d\n",
r, r->req.tag, status);
scsi_req_complete(&r->req, status);
done:
scsi_req_unref(&r->req);
}
/* Helper function for command completion. */
static void scsi_command_complete_noio(SCSIGenericReq *r, int ret)
{
int status;
SCSISense sense;
assert(r->req.aiocb == NULL);
if (r->req.io_canceled) {
scsi_req_cancel_complete(&r->req);
goto done;
}
status = sg_io_sense_from_errno(-ret, &r->io_header, &sense);
if (status == CHECK_CONDITION) {
if (r->io_header.driver_status & SG_ERR_DRIVER_SENSE) {
r->req.sense_len = r->io_header.sb_len_wr;
} else {
scsi_req_build_sense(&r->req, sense);
}
}
DPRINTF("Command complete 0x%p tag=0x%x status=%d\n",
r, r->req.tag, status);
scsi_req_complete(&r->req, status);
done:
scsi_req_unref(&r->req);
}
static int32_t scsi_invalid_command(SCSIRequest *req, uint8_t *buf)
{
scsi_req_build_sense(req, SENSE_CODE(INVALID_OPCODE));
scsi_req_complete(req, CHECK_CONDITION);
return 0;
}