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| author | Bhasker Hariharan <bhaskerh@google.com> | 2020-03-24 15:33:16 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2020-03-24 15:34:43 -0700 |
| commit | c8eeedcc1d6b1ee25532ae630a7efd7aa4656bdc (patch) | |
| tree | 0d7176f046b072222079a84befb48435cb9b933e /pkg/tcpip/transport/tcp/endpoint.go | |
| parent | f97858011fa88b539585ca456943922204d92840 (diff) | |
Add support for setting TCP segment hash.
This allows the link layer endpoints to consistenly hash a TCP
segment to a single underlying queue in case a link layer endpoint
does support multiple underlying queues.
Updates #231
PiperOrigin-RevId: 302760664
Diffstat (limited to 'pkg/tcpip/transport/tcp/endpoint.go')
| -rw-r--r-- | pkg/tcpip/transport/tcp/endpoint.go | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/pkg/tcpip/transport/tcp/endpoint.go b/pkg/tcpip/transport/tcp/endpoint.go index 594efaa11..b6e571361 100644 --- a/pkg/tcpip/transport/tcp/endpoint.go +++ b/pkg/tcpip/transport/tcp/endpoint.go @@ -581,6 +581,10 @@ type endpoint struct { // endpoint and at this point the endpoint is only around // to complete the TCP shutdown. closed bool + + // txHash is the transport layer hash to be set on outbound packets + // emitted by this endpoint. + txHash uint32 } // UniqueID implements stack.TransportEndpoint.UniqueID. @@ -771,6 +775,7 @@ func newEndpoint(s *stack.Stack, netProto tcpip.NetworkProtocolNumber, waiterQue count: 9, }, uniqueID: s.UniqueID(), + txHash: s.Rand().Uint32(), } var ss SendBufferSizeOption |