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Message-ID: <ZCJXefIhSrd7Hm2Z@gondor.apana.org.au> Date: Tue, 28 Mar 2023 10:56:57 +0800 From: Herbert Xu <herbert@...dor.apana.org.au> To: netdev@...r.kernel.org Subject: [PATCH 0/2] macvlan: Allow some packets to bypass broadcast queue This patch series allows some packets to bypass the broadcast queue on receive. Currently all multicast packets are queued on receive and then processed in a work queue. This is to avoid an unbounded amount of work occurring in the receive path, as one broadcast packet could easily translate into 4,000 packets. However, for multicast packets with just one receiver (possible for IPv6 ND), this introduces unnecessary latency as the packet will go to exactly one device. This series allows such multicast packets to be processed inline. It also adds a toggle which lets the admin control what threshold to set between queueing and not queueing. A follow-up patch for iproute will be posted. Cheers, -- Email: Herbert Xu <herbert@...dor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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