netdev - Re: [PATCH net-next] net: sched: run ingress qdisc without locks

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Message-ID: <5543B8AB.8000303@plumgrid.com>
Date:	Fri, 01 May 2015 10:32:27 -0700
From:	Alexei Starovoitov <ast@...mgrid.com>
To:	John Fastabend <john.r.fastabend@...el.com>,
	Jamal Hadi Salim <jhs@...atatu.com>,
	"David S. Miller" <davem@...emloft.net>
CC:	Daniel Borkmann <daniel@...earbox.net>, netdev@...r.kernel.org
Subject: Re: [PATCH net-next] net: sched: run ingress qdisc without locks

On 5/1/15 7:04 AM, John Fastabend wrote:
>
> Well there is still the TX side, although not as obvious because
> of mq and mqprio. Hopefully by say next LPC we can remove the
> qdisc lock there in many scenarios. Also the netif_tx_lock is
> there as well but many (most?) of the 10G/40G/etc devices can
> create per core descriptor rings. I'll start prodding away on that
> side shortly I suppose.

that will be massive! 'per core descriptor ring' sounds like new
driver API. Looking forward to your work :)

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