From: Florian Fainelli <f.fainelli-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Doug Berger <opendmb-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
mark.rutland-5wv7dgnIgG8@public.gmane.org,
davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org,
rafal-g1n6cQUeyibVItvQsEIGlw@public.gmane.org,
xow-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
joel-U3u1mxZcP9KHXe+LvDLADg@public.gmane.org,
jon.mason-dY08KVG/lbpWk0Htik3J/w@public.gmane.org,
netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
pgynther-hpIqsD4AKlfQT0dZR+AlfA@public.gmane.org,
jaedon.shin-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org
Subject: Re: [PATCH net-next 07/12] net: bcmgenet: clear status to reduce spurious interrupts
Date: Mon, 13 Mar 2017 17:56:56 -0700 [thread overview]
Message-ID: <72c62daf-24f3-de13-e81b-4742993e1de5@gmail.com> (raw)
In-Reply-To: <20170314004142.4746-8-opendmb-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
On 03/13/2017 05:41 PM, Doug Berger wrote:
> Since the DMA interrupt status is latched and the DMA servicing can be
> polled, it is a good idea to clear the latched status of a DMA interrupt
> before performing the service that would be invoked by the interrupt.
>
> This prevents old status from causing spurious interrupts when the
> interrupt is unmasked at a later time.
>
> Signed-off-by: Doug Berger <opendmb-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Reviewed-by: Florian Fainelli <f.fainelli-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
--
Florian
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next prev parent reply other threads:[~2017-03-14 0:56 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-03-14 0:41 [PATCH net-next 00/12] net: bcmgenet: add support for GENETv5 Doug Berger
2017-03-14 0:41 ` [PATCH net-next 01/12] net: phy: bcm-phylib: replace obsolete EEE macro references Doug Berger
[not found] ` <20170314004142.4746-2-opendmb-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-03-14 0:49 ` Florian Fainelli
2017-03-14 0:41 ` [PATCH net-next 02/12] net: phy: bcm7xxx: add support for 28nm EPHY Doug Berger
[not found] ` <20170314004142.4746-3-opendmb-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-03-14 0:50 ` Florian Fainelli
2017-03-14 1:06 ` Andrew Lunn
2017-03-14 2:06 ` Doug Berger
[not found] ` <3e5f7ac9-7e97-60f1-3986-4045522a65f5-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-03-14 2:43 ` Andrew Lunn
[not found] ` <20170314024320.GQ15842-g2DYL2Zd6BY@public.gmane.org>
2017-03-14 17:23 ` Doug Berger
2017-03-14 0:41 ` [PATCH net-next 03/12] net: bcmgenet: simplify circular pointer arithmetic Doug Berger
[not found] ` <20170314004142.4746-4-opendmb-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-03-14 0:54 ` Florian Fainelli
2017-03-14 0:41 ` [PATCH net-next 04/12] net: bcmgenet: remove meaningless lines Doug Berger
[not found] ` <20170314004142.4746-5-opendmb-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-03-14 0:55 ` Florian Fainelli
2017-03-14 0:41 ` [PATCH net-next 05/12] net: bcmgenet: manage dma interrupts in napi code Doug Berger
2017-03-14 0:55 ` Florian Fainelli
2017-03-14 0:41 ` [PATCH net-next 07/12] net: bcmgenet: clear status to reduce spurious interrupts Doug Berger
[not found] ` <20170314004142.4746-8-opendmb-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-03-14 0:56 ` Florian Fainelli [this message]
2017-03-14 0:41 ` [PATCH net-next 08/12] net: bcmgenet: correct return value of __bcmgenet_tx_reclaim Doug Berger
2017-03-14 0:57 ` Florian Fainelli
2017-03-14 0:41 ` [PATCH net-next 09/12] net: bcmgenet: return EOPNOTSUPP for unknown ioctl commands Doug Berger
2017-03-14 0:57 ` Florian Fainelli
2017-03-14 11:04 ` David Laight
2017-03-14 17:31 ` Doug Berger
2017-03-14 0:41 ` [PATCH net-next 10/12] dt-bindings: net: document bcmgenet WoL interrupt Doug Berger
[not found] ` <20170314004142.4746-11-opendmb-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-03-14 0:58 ` Florian Fainelli
2017-03-20 22:09 ` Rob Herring
2017-03-14 0:41 ` [PATCH net-next 11/12] dt-bindings: net: update bcmgenet binding for GENETv5 Doug Berger
2017-03-14 0:58 ` Florian Fainelli
2017-03-14 0:41 ` [PATCH net-next 12/12] net: bcmgenet: add support for the GENETv5 hardware Doug Berger
[not found] ` <20170314004142.4746-13-opendmb-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-03-14 0:59 ` Florian Fainelli
[not found] ` <20170314004142.4746-1-opendmb-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-03-14 0:41 ` [PATCH net-next 06/12] net: bcmgenet: remove handling of wol interrupts from isr0 Doug Berger
[not found] ` <20170314004142.4746-7-opendmb-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2017-03-14 0:56 ` Florian Fainelli
2017-03-14 4:53 ` [PATCH net-next 00/12] net: bcmgenet: add support for GENETv5 David Miller
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