SCSI_MAX_SG_CHAIN_SEGMENTS   28 include/scsi/scsi.h #define SCSI_MAX_SG_CHAIN_SEGMENTS	2048
SCSI_MAX_SG_CHAIN_SEGMENTS   30 include/scsi/scsi.h #define SCSI_MAX_SG_CHAIN_SEGMENTS	SCSI_MAX_SG_SEGMENTS