protocol_engine 2201 drivers/scsi/isci/host.c writel(i, &ptsg->protocol_engine[i]); protocol_engine 2229 drivers/scsi/isci/host.c iport->port_pe_configuration_register = &ihost->scu_registers->peg0.ptsg.protocol_engine[0]; protocol_engine 1533 drivers/scsi/isci/registers.h u32 protocol_engine[4];