| db76829b | 10-Oct-2017 |
Sepherosa Ziehau <[email protected]> |
hyperv/hn: Workaround erroneous hash type observed on WS2016.
Background:
- UDP 4-tuple hash type is unconditionally enabled in Hyper-V on WS2016,
which is _not_ affected by NDIS_OBJTYPE_RSS_PARAM
hyperv/hn: Workaround erroneous hash type observed on WS2016.
Background:
- UDP 4-tuple hash type is unconditionally enabled in Hyper-V on WS2016,
which is _not_ affected by NDIS_OBJTYPE_RSS_PARAMS.
- Non-fragment UDP/IPv4 datagrams' hash type is delivered to VM as
TCP_IPV4.
Currently this erroneous behavior only applies to WS2016/Windows10.
Force l3/l4 protocol check, if the RXed packet's hash type is TCP_IPV4,
and the Hyper-V is running on WS2016/Windows10. If the RXed packet is
UDP datagram, adjust mbuf hash type to UDP_IPV4.
MFC after: 3 days
Sponsored by: Microsoft
show more ...
|
| 2be266ca | 27-Sep-2017 |
Sepherosa Ziehau <[email protected]> |
hyperv/hn: Fix UDP checksum offload issue in Azure.
UDP checksum offload does not work in Azure if following conditions are
met:
- sizeof(IP hdr + UDP hdr + payload) > 1420.
- IP_DF is not set in IP
hyperv/hn: Fix UDP checksum offload issue in Azure.
UDP checksum offload does not work in Azure if following conditions are
met:
- sizeof(IP hdr + UDP hdr + payload) > 1420.
- IP_DF is not set in IP hdr
Use software checksum for UDP datagrams falling into this category.
Add two tunables to disable UDP/IPv4 and UDP/IPv6 checksum offload, in
case something unexpected happened.
MFC after: 1 week
Sponsored by: Microsoft
Differential Revision: https://reviews.freebsd.org/D12429
show more ...
|