RE: [RFC PATCH net-next 0/3] sctp: add GSO support
From: David Laight <hidden>
Date: 2016-01-28 13:54:05
Also in:
linux-sctp
From: David Laight <hidden>
Date: 2016-01-28 13:54:05
Also in:
linux-sctp
From: Marcelo Ricardo Leitner
Sent: 27 January 2016 17:07 This patchset is merely a RFC for the moment. There are some controversial points that I'd like to discuss before actually proposing the patches.
You also need to look at how a 'user' can actually get SCTP to merge data chunks in the first place. With Nagle disabled (and it probably has to be since the data flow is unlikely to be 'command-response' or 'unidirectional bulk') it is currently almost impossible to get more than one chunk into an ethernet frame. Support for MSG_MORE would help. Given the current implementation you can get almost the required behaviour by turning nagle off and on repeatedly. I did wonder whether the queued data could actually be picked up be a Heartbeat chunk that is probing a different remote address (which would be bad news). David