• Ben Hutchings's avatar
    sfc: Add support for MCDI v2 · df2cd8af
    Ben Hutchings authored
    MCDI v2 adds a second header dword with wider command and length
    fields.  It also defines extra error codes.
    
    Change the fallback error number for unknown MCDI error codes from EIO
    to EPROTO.  EIO is treated as indicating the MCDI transport has failed
    and we need to reset the function, which is rather drastic.
    
    v2 error codes and lengths don't fit into completion events, so for a
    v2-capable transport, always read the response header rather then
    using the event fields.
    Signed-off-by: default avatarBen Hutchings <bhutchings@solarflare.com>
    df2cd8af
siena.c 21.8 KB