s390/block/dasd_eckd.c

700  * Returns 1 if the block is one of the special blocks that needs
834 	cqr->block = NULL;
1522 	cqr->block = NULL;
1622 	cqr->block = NULL;
1729 	if (cqr->block)
1730 		data->base = cqr->block->base;
1806 	cqr->block = NULL;
1902 	cqr->block = NULL;
2018 	struct dasd_block *block;
2026 		block = dasd_alloc_block();
2027 		if (IS_ERR(block)) {
2029 					"could not allocate dasd block structure");
2030 			return PTR_ERR(block);
2032 		device->block = block;
2033 		block->base = device;
2129 	/* check if block device is needed and allocate in case */
2194 	dasd_free_block(device->block);
2195 	device->block = NULL;
2269 	cqr->block = NULL;
2316 static int dasd_eckd_start_analysis(struct dasd_block *block)
2320 	init_cqr = dasd_eckd_analysis_ccw(block->base);
2335 static int dasd_eckd_end_analysis(struct dasd_block *block)
2337 	struct dasd_device *device = block->base;
2355 		block->bp_block = DASD_RAW_BLOCKSIZE;
2357 		block->s2b_shift = 3;
2408 			block->bp_block = count_area->dl;
2410 	if (block->bp_block == 0) {
2415 	block->s2b_shift = 0;	/* bits to shift 512 to get a block */
2416 	for (sb = 512; sb < block->bp_block; sb = sb << 1)
2417 		block->s2b_shift++;
2419 	blk_per_trk = recs_per_track(&private->rdc_data, 0, block->bp_block);
2422 	block->blocks = ((unsigned long) private->real_cyl *
2427 		 "DASD with %u KB/block, %lu KB total size, %u KB/track, "
2428 		 "%s\n", (block->bp_block >> 10),
2431 		   blk_per_trk * (block->bp_block >> 9)) >> 1),
2432 		 ((blk_per_trk * block->bp_block) >> 10),
2439 static int dasd_eckd_do_analysis(struct dasd_block *block)
2441 	struct dasd_eckd_private *private = block->base->private;
2444 		return dasd_eckd_start_analysis(block);
2446 		return dasd_eckd_end_analysis(block);
2470 dasd_eckd_fill_geometry(struct dasd_block *block, struct hd_geometry *geo)
2472 	struct dasd_eckd_private *private = block->base->private;
2474 	if (dasd_check_blocksize(block->bp_block) == 0) {
2476 					      0, block->bp_block);
2806 			      base->block->bp_block);
2970 			 "The DASD cannot be formatted with block size %u\n",
3114 	struct dasd_block *block = cqr->block;
3119 	spin_lock_irqsave(&block->format_lock, flags);
3120 	if (cqr->trkcount != atomic_read(&block->trkcount)) {
3130 	list_for_each_entry(format, &block->format_list, list) {
3136 	list_add_tail(&to_format->list, &block->format_list);
3139 	spin_unlock_irqrestore(&block->format_lock, flags);
3144 			      struct dasd_block *block)
3148 	spin_lock_irqsave(&block->format_lock, flags);
3149 	atomic_inc(&block->trkcount);
3151 	spin_unlock_irqrestore(&block->format_lock, flags);
3163 	clear_format_track(format, cqr->basedev->block);
3178 	struct dasd_block *block;
3187 	block = cqr->block;
3188 	base = block->base;
3190 	blksize = block->bp_block;
3194 	first_trk = blk_rq_pos(req) >> block->s2b_shift;
3197 		(blk_rq_pos(req) + blk_rq_sectors(req) - 1) >> block->s2b_shift;
3261 	struct dasd_block *block;
3272 	base = cqr->block->base;
3273 	blksize = base->block->bp_block;
3274 	block =  cqr->block;
3280 	first_trk = first_blk = blk_rq_pos(req) >> block->s2b_shift;
3283 		(blk_rq_pos(req) + blk_rq_sectors(req) - 1) >> block->s2b_shift;
3549 	if (cqr->block && (cqr->startdev != cqr->block->base)) {
3551 		cqr->startdev = cqr->block->base;
3552 		cqr->lpm = dasd_path_get_opm(cqr->block->base);
3596 		if (!device->block && private->lcu &&
3648 	if (device->block && (sense[27] & DASD_SENSE_BIT_0) &&
3747 dasd_eckd_dso_ras(struct dasd_device *device, struct dasd_block *block,
3845 	cqr->block = block;
3874 	struct dasd_block *block = device->block;
3913 			spin_lock_irq(&block->queue_lock);
3915 			spin_unlock_irq(&block->queue_lock);
3926 			spin_lock_irq(&block->queue_lock);
3928 			spin_unlock_irq(&block->queue_lock);
3952 					       struct dasd_block *block,
3978 	basedev = block->base;
3994 		count += bv.bv_len >> (block->s2b_shift + 9);
3996 			cidaw += bv.bv_len >> (block->s2b_shift + 9);
4078 			/* Locate record for cdl special block ? */
4119 	    block->base->features & DASD_FEATURE_FAILFAST)
4123 	cqr->block = block;
4142 					       struct dasd_block *block,
4170 	basedev = block->base;
4298 	    block->base->features & DASD_FEATURE_FAILFAST)
4302 	cqr->block = block;
4474 					       struct dasd_block *block,
4505 	basedev = block->base;
4564 	 * We can let the block layer handle this by setting
4621 	    block->base->features & DASD_FEATURE_FAILFAST)
4626 	cqr->block = block;
4647 					       struct dasd_block *block,
4663 	basedev = block->base;
4667 	blksize = block->bp_block;
4671 	/* Calculate record id of first and last block. */
4672 	first_rec = first_trk = blk_rq_pos(req) >> block->s2b_shift;
4675 		(blk_rq_pos(req) + blk_rq_sectors(req) - 1) >> block->s2b_shift;
4697 		cqr = dasd_eckd_build_cp_tpm_track(startdev, block, req,
4708 		cqr = dasd_eckd_build_cp_cmd_track(startdev, block, req,
4718 		cqr = dasd_eckd_build_cp_cmd_single(startdev, block, req,
4727 						   struct dasd_block *block,
4758 	basedev = block->base;
4863 	    block->base->features & DASD_FEATURE_FAILFAST)
4867 	cqr->block = block;
4892 	private = cqr->block->base->private;
4893 	blksize = cqr->block->bp_block;
4895 	recid = blk_rq_pos(req) >> cqr->block->s2b_shift;
4965 						     struct dasd_block *block,
4983 		cqr = dasd_eckd_build_cp_raw(startdev, block, req);
4985 		cqr = dasd_eckd_build_cp(startdev, block, req);
5484 dasd_eckd_ioctl(struct dasd_block *block, unsigned int cmd, void __user *argp)
5486 	struct dasd_device *device = block->base;
5886 	cqr->block = NULL;
5955 	if (!device->block && private->lcu->pav == HYPER_PAV)
5979 	cqr->block = NULL;
6149  * IO is paused on the block queue before swap and may be resumed afterwards.
6156 	struct dasd_block *block;
6181 	/* swap DASD internal device <> block assignment */
6182 	block = primary->block;
6183 	primary->block = NULL;
6184 	secondary->block = block;
6185 	block->base = secondary;
6190 	gdp = block->gdp;
6223 	cqr->block = NULL;
6283 	cqr->block = NULL;
6347 	cqr->block = NULL;
6827 static unsigned int dasd_eckd_max_sectors(struct dasd_block *block)
6829 	if (block->base->features & DASD_FEATURE_USERAW) {
6837 		return DASD_ECKD_MAX_BLOCKS_RAW << block->s2b_shift;
6840 	return DASD_ECKD_MAX_BLOCKS << block->s2b_shift;