From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH net-next 00/12] net: mvpp2: improve the interrupt usage Date: Wed, 19 Sep 2018 21:13:45 -0700 (PDT) Message-ID: <20180919.211345.499002396520654228.davem@davemloft.net> References: <20180919092711.22296-1-antoine.tenart@bootlin.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, thomas.petazzoni@bootlin.com, maxime.chevallier@bootlin.com, gregory.clement@bootlin.com, miquel.raynal@bootlin.com, nadavh@marvell.com, stefanc@marvell.com, ymarkman@marvell.com, mw@semihalf.com To: antoine.tenart@bootlin.com Return-path: In-Reply-To: <20180919092711.22296-1-antoine.tenart@bootlin.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Antoine Tenart Date: Wed, 19 Sep 2018 11:26:59 +0200 > This series aims to improve the interrupts descriptions and usage in the > Marvell PPv2 driver. > > - Before the series interrupts were named after their s/w usage, > which in fact can be configured. The series rename all those > interrupts and add a description of the ones left over. > > - In PPv2 the interrupts are mapped to vectors. Those vectors were > directly mapped to a given CPU, and per-cpu accesses were done. While > this worked on our cases, the registers accesses mapped to the vectors > are not actually linked to a given CPU. They instead are linked to > what is called a "s/w thread". The series modify this so that the s/w > threads are used instead of the CPU numbers, by adding an indirection. > This means we now can have systems with more CPUs than s/w threads. > > This is based on today's net-next, and was tested on various boards > using both versions of the PPv2 engine. > > Two more patches will be coming, to update the device trees describing a > PPv2 engine. The patches are ready, but will go through a different > tree. I'll send them once this series will be accepted. This is not an > issue as the PPv2 driver keeps the dt bindings backward compatibility. Series applied, thanks Antoine.