07-090r0 SAS-2 Transmit IDENTIFY three times.fm

This should not confuse a SAS-1.1 receiver, which is supposed to only honor the first SOAF it sees. As noted by Jeff Gauvin (LSI), the SL_IR state machine in SAS-1.1 (which handles IDENTIFY address frames) differs from the SL_RA state machine (which handles OPEN address frames) in its handling of unexpected address frames and SOAFs before EOAFs. SL_IR only honors the first SOAF it sees, while SL_CC restarts on any SOAF. It is likely that some SL_IR implementations don’t make that distinction and restart on each SOAF, to share logic with SL_RA. If they do make the distinction, then SAS-2 to SAS-1.1 just falls back to the SAS-1.1 case of rerunning the link reset sequence if an error occurs.