s390/char/tape_34xx.c

54  * Medium sense for 34xx tapes. There is no 'real' medium sense call.
55  * So we just do a normal sense.
60 	unsigned char *sense;
63 		sense = request->cpdata;
71 		if (sense[0] & SENSE_INTERVENTION_REQUIRED)
76 		if (sense[1] & SENSE_WRITE_PROTECT)
81 		DBF_EVENT(4, "tape_34xx: medium sense failed with rc=%d\n",
98 	tape_ccw_end(request->cpaddr, SENSE, 32, request->cpdata);
115 	tape_ccw_end(request->cpaddr, SENSE, 32, request->cpdata);
313  * This function analyses the tape's sense-data in case of a unit-check.
322 	__u8* sense;
325 	sense = irb->ecw;
328 		sense[0] & SENSE_COMMAND_REJECT &&
329 		sense[1] & SENSE_WRITE_PROTECT
348 	 *        sense[0] == SENSE_EQUIPMENT_CHECK &&
349 	 *        sense[1] == SENSE_DRIVE_ONLINE    &&
350 	 *        sense[3] == 0x47 (Volume Fenced)
356 		sense[0] == SENSE_DATA_CHECK      ||
357 		sense[0] == SENSE_EQUIPMENT_CHECK ||
358 		sense[0] == (SENSE_EQUIPMENT_CHECK | SENSE_DEFERRED_UNIT_CHECK)
360 		sense[1] == SENSE_DRIVE_ONLINE ||
361 		sense[1] == (SENSE_BEGINNING_OF_TAPE | SENSE_WRITE_MODE)
365 		 * sense[0] == SENSE_DATA_CHECK   &&
366 		 * sense[1] == SENSE_DRIVE_ONLINE
367 		 * sense[3] == 0x36 (End Of Data)
379 		 * sense[0] == SENSE_DATA_CHECK   &&
380 		 * sense[1] == SENSE_DRIVE_ONLINE &&
381 		 * sense[3] == 0x36 (End Of Data)
393 		 * sense[0] == SENSE_EQUIPMENT_CHECK &&
394 		 * sense[1] == SENSE_DRIVE_ONLINE    &&
395 		 * sense[3] == 0x38 (Physical End Of Volume)
406 	if (sense[0] & SENSE_BUS_OUT_CHECK)
409 	if (sense[0] & SENSE_DATA_CHECK) {
414 		switch (sense[3]) {
417 			if ((sense[2] & SENSE_TAPE_SYNC_MODE) ||
431 			if ((sense[2] & SENSE_TAPE_SYNC_MODE) ||
471 	if (sense[0] & SENSE_OVERRUN)
474 	if (sense[1] & SENSE_RECORD_SEQUENCE_ERR)
478 	switch (sense[3]) {
536 		return tape_34xx_erp_bug(device, request, irb, sense[3]);
548 		return tape_34xx_erp_bug(device, request, irb, sense[3]);
586 		return tape_34xx_erp_bug(device, request, irb, sense[3]);
603 		return tape_34xx_erp_bug(device, request, irb, sense[3]);
648 		if (sense[1] & SENSE_DRIVE_ONLINE) {
666 						 irb, sense[3]);
688 		/* Log sense data and retry request. */
723 		return tape_34xx_erp_bug(device, request, irb, sense[3]);
736 		return tape_34xx_erp_bug(device, request, irb, sense[3]);
760 		return tape_34xx_erp_bug(device, request, irb, sense[3]);
793 		if (sense[1] & SENSE_BEGINNING_OF_TAPE)
825 		return tape_34xx_erp_bug(device, request, irb, sense[3]);
1039 			DBF_LH(3, "34xx medium sense returned %d\n", rc);