>>>>> "Doug" == Douglas Gilbert <dgilbert@xxxxxxxxxxxx> writes: Doug> While testing the midlevel q_at_head and q_at_tail patch for sg Doug> and the block SG_IO ioctl I found it useful to reduce the queuing Doug> within the scsi_debug driver. The reason is that the midlevel Doug> queue only comes into play when the corresponding LLD queue is Doug> full. Doug> It is also useful when testing to be confident that your program Doug> is the only thing issuing commands to the (virtual) scsi_debug Doug> device. The no_uld=1 parameter will stop a scsi_debug virtual disk Doug> appearing as /dev/sd* . Doug> Changelog: Doug> - add max_queue parameter to reduce the number Doug> of queued commands the driver will accept. This parameter can Doug> be changed after the driver is loaded. Doug> - add no_uld parameter that restricts scsi_debug's Doug> virtual devices to the sg and bsg drivers Doug> - correct stale url Acked-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx> -- Martin K. Petersen Oracle Linux Engineering -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
