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Commit 2e88efd3 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Nicholas Bellinger
Browse files

tcm_loop: bump max_sectors 



There is not reason to artifically limit max_sectors in tcm_loop, set
it to UINT_MAX to allow stressing the large I/O handling in the target
core using the loopback driver.  Also remove various superflous defines
hiding the values set in the host template.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
parent 0877eafd

drivers/target/loopback/tcm_loop.c

+4 −4
Original line number Diff line number Diff line
@@ -416,11 +416,11 @@ static struct scsi_host_template tcm_loop_driver_template = { 
	.queuecommand		= tcm_loop_queuecommand,

	.change_queue_depth	= tcm_loop_change_queue_depth,

	.eh_device_reset_handler = tcm_loop_device_reset,

	.can_queue		= TL_SCSI_CAN_QUEUE,

	.can_queue		= 1024,

	.this_id		= -1,

	.sg_tablesize		= TL_SCSI_SG_TABLESIZE,

	.cmd_per_lun		= TL_SCSI_CMD_PER_LUN,

	.max_sectors		= TL_SCSI_MAX_SECTORS,

	.sg_tablesize		= 256,

	.cmd_per_lun		= 1024,

	.max_sectors		= 0xFFFF,

	.use_clustering		= DISABLE_CLUSTERING,

	.slave_alloc		= tcm_loop_slave_alloc,

	.slave_configure	= tcm_loop_slave_configure,

drivers/target/loopback/tcm_loop.h

+1 −10
Original line number Diff line number Diff line 
#define TCM_LOOP_VERSION		"v2.1-rc1"

#define TL_WWN_ADDR_LEN			256

#define TL_TPGS_PER_HBA			32

/*

 * Defaults for struct scsi_host_template tcm_loop_driver_template

 *

 * We use large can_queue and cmd_per_lun here and let TCM enforce

 * the underlying se_device_t->queue_depth.

 */

#define TL_SCSI_CAN_QUEUE		1024

#define TL_SCSI_CMD_PER_LUN		1024

#define TL_SCSI_MAX_SECTORS		1024

#define TL_SCSI_SG_TABLESIZE		256



/*

 * Used in tcm_loop_driver_probe() for struct Scsi_Host->max_cmd_len

 */