The sas transport current implementation is mapping the channel number for each sas/sata device equal to the phy number. The problem with that is it will be difficult to reserve a channel for RAID volumes when hot swap support is eventually implemented in the sas transport layer. Thus my suggested change is to map the channel to the port identifier, which effectively maps each channel number to its own unique sas domain. Thus we can map the RAID volumes to a reserved channel that is one larger than the anticapated number of ports on the direct attached host adapter. Signed-off-by: Eric Moore <Eric.Moore@xxxxxxxx>
Attachment:
scsi_transport_sas.patch
Description: scsi_transport_sas.patch
