Re: [PATCH 0/4] net-next: dsa: fix flow dissection
flat view
From: Vivien Didelot <hidden>
Date: 2017-08-09 15:10:34
Also in:
linux-mediatek, lkml
Hi John, John Crispin [off-list ref] writes:
RPS and probably other kernel features are currently broken on some if not all DSA devices. The root cause of this is that skb_hash will call the flow_dissector. At this point the skb still contains the magic switch header and the skb->protocol field is not set up to the correct 802.3 value yet. By the time the tag specific code is called, removing the header and properly setting the protocol an invalid hash is already set. In the case of the mt7530 this will result in all flows always having the same hash. Changes since RFC: * use a callback instead of static values * add cover letter John Crispin (4): net-next: dsa: move struct dsa_device_ops to the global header file net-next: dsa: add flow_dissect callback to struct dsa_device_ops net-next: tag_mtk: add flow_dissect callback to the ops struct net-next: dsa: fix flow dissection
The "net-next" tag goes into the subject-prefix, i.e.
"[PATCH net-next v3 0/4]" (this is the result of git format-patch
--subject-prefix="PATCH net-next" -v3 --cover-letter.)
The commit title prefix represents the most impacted subsystem, here
"net: dsa: xxx" would map the net/dsa/ or drivers/net/dsa directories.
Other than that, the whole patchset LGTM:
Reviewed-by: Vivien Didelot <redacted>
Thanks,
Vivien