Small nit for the benefit of hn(4)
Derive SIOCGIFRSSHASH's TCP and UDP selections from the same boot-time
hash configuration used by mlx5e_build_tir_ctx(). The query previously
advertised all six IPv4/IPv6 hash types even when the transport-specific
TIRs selected only the IP addresses. In particular, the default RSS
configuration disables UDP four-tuple hashing.
Continue reporting IPv4 and IPv6 two-tuple hashing unconditionally,
matching the driver's IP-only TIRs. Do not report IPv6 extension-header
variants which the query did not previously claim. Leave key selection,
TIR programming, and the receive datapath unchanged. This lets consumers
such as hn match the VF's hash inputs instead of enabling incompatible
UDP four-tuple hashes on their own receive path.
Fixes: a00718e1dfcd ("Implement SIOCGIFRSSKEY and SIOCGIFRSSHASH and mlx5en(4).")
MFC after: 2 weeks
Sponsored by: BBOX.io