s390/char/tape_34xx.c

39 	unsigned int	block		: 22;
43  * A list of block ID's is used to faster seek blocks.
298 		 * cu detected incorrect block-id sequence on tape.
300 		dev_warn (&device->cdev->dev, "The block ID sequence on the "
458 				"incorrect block ID sequence\n");
663 			/* No locate block was issued. */
726 			 * Maximum block size exceeded. This indicates, that
727 			 * the block to be written is larger than allowed for
730 			dev_warn (&device->cdev->dev, "The maximum block size"
850 		 * A unit exception occurs on skipping over a tapemark block.
897  * Build up the search block ID list. The block ID consists of a logical
898  * block number and a hardware specific part. The hardware specific part
899  * helps the tape drive to speed up searching for a specific block.
909 	 * immediately return if there is no list at all or the block to add
921 	 * If there is a block with a lower number but the same hard-
922 	 * ware position data we just update the block number in the
932 			if (bid.block < sbid->bid.block)
938 		/* Sort in according to logical block number. */
939 		if (bid.block < sbid->bid.block) {
944 	/* List empty or new block bigger than last entry. */
954 			sbid->bid.block
960  * Delete all entries from the search block ID list that belong to tape blocks
977 		if (sbid->bid.block >= from) {
981 				sbid->bid.block
990  * Merge hardware position data into a block id.
1013 		if (sbid->bid.block >= bid->block)
1023 			sbid_to_use->bid.block,
1024 			bid->block
1064  * MTTELL: Tell block. Return the number of block relative to current file.
1080 	return block_id.cbid.block;
1084  * MTSEEK: seek to the specified block.
1105 	bid->block  = mt_count;