On Sat, 2017-04-08 at 14:50 -0400, Stephen Hemminger wrote: > Since 3.12 it has been possible to configure the default queuing discipline > via sysctl. This patch adds ability to configure the default queue discipline > in kernel configuration. This is useful for environments where configuring > the value from userspace is difficult to manage. > > The default is still the same as before (pfifo_fast) and it is possible > to change after kernel init with sysctl. This is analagous to how > TCP congestion control is configured. > > Signed-off-by: Stephen Hemminger <sthem...@microsoft.com> > --- > net/sched/Kconfig | 31 +++++++++++++++++++++++++++++++ > net/sched/sch_api.c | 7 +++++++ > 2 files changed, 38 insertions(+) > > diff --git a/net/sched/Kconfig b/net/sched/Kconfig > index 403790cce7d2..8fb45655e59b 100644 > --- a/net/sched/Kconfig > +++ b/net/sched/Kconfig > @@ -820,6 +820,37 @@ config NET_CLS_IND > classification based on the incoming device. This option is > likely to disappear in favour of the metadata ematch. > > +choice > + prompt "Default queuing discipline" > + default DEFAULT_PFIFO > + help > + Select the queueing discipline that will be used by default > + for all network devices. > + > + config DEFAULT_FQ > + bool "Fair Queue" if NET_SCH_FQ > + > + config DEFAULT_FQ_CODEL > + bool "Fair Queue Controlled Delay (FQ_CODEL)" if > NET_SCH_FQ_CODEL > + > + config DEFAULT_CODEL > + bool "Controlled Delay (CODEL)" if NET_SCH_CODEL > + > + config DEFAULT_SFQ > + bool "Stochastic Fair Queue (SFQ)" if NET_SCH_SFQ > + > + config DEFAULT_PFIFO > + bool "Priority FIFO" > +endchoice > + > +config DEFAULT_NET_SCH > + string > + default "pfifo" if DEFAULT_PFIFO > + default "fq" if DEFAULT_FQ > + default "fq_codel" if DEFAULT_FQ_CODEL > + default "sfq" if DEFAULT_SFQ > + default "pfifo" > + > endif # NET_SCHED
Note that pfifo != pfifo_fast We probably still want pfifo_fast being the default ?
