James Bottomley wrote: > This wires in the transport class hard and link reset phy ability. It > does local phy resets via the HBA callback functions, but it also does > expander phy resets vi the SMP PHY_CONTROL messages. James, The ability to disable a phy (on a HBA or on an expander) is also a very useful capability. Does the sas_transport give us that capability? There is a way to effectively disable a phy on a SAS disk as well: use SEND DIAGNOSTIC to send the SAS protocol specific diagnostic page to put the disk phy in CJTPAT (jitter pattern) generation mode. However unless another phy is accessible on that disk to clear that state, a power cycle is needed to re-enable a phy in jitter pattern generation mode. Doug Gilbert - 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
