Re: [PATCH v4 net-next 1/4] net: implement support for low latency socket polling

Ben Hutchings
2013-05-21T17:27:51Z

On Tue, 2013-05-21 at 17:26 +0300, Eliezer Tamir wrote:
> Adds a new ndo_ll_poll method and the code that supports and uses it.
> This method can be used by low latency applications to busy poll ethernet
> device queues directly from the socket code. The ip_low_latency_poll sysctl
> entry controls how many cycles to poll. Set to zero to disable.
[...]

One more general point: why is this treated as an IPv4 option (in
Kconfig and sysctls)? I don't have any particular expectation that it
will be used with network protocols other than IPv4 and v6 any time
soon, but logically it's not dependent on them.

Ben.

--
Ben Hutchings, Staff Engineer, Solarflare
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