From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: Re: [PATCH 00/13] mvneta Buffer Management and enhancements Date: Sun, 22 Nov 2015 21:06:34 +0100 Message-ID: <12984648.7CKVgBs7pu@wuerfel> References: <1448178839-3541-1-git-send-email-mw@semihalf.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: Marcin Wojtas , linux-kernel@vger.kernel.org, netdev@vger.kernel.org, thomas.petazzoni@free-electrons.com, andrew@lunn.ch, linux@arm.linux.org.uk, jason@lakedaemon.net, myair@marvell.com, jaz@semihalf.com, simon.guinot@sequanux.org, xswang@marvell.com, nadavh@marvell.com, alior@marvell.com, tn@semihalf.com, gregory.clement@free-electrons.com, nitroshift@yahoo.com, davem@davemloft.net, sebastian.hesselbarth@gmail.com To: linux-arm-kernel@lists.infradead.org Return-path: In-Reply-To: <1448178839-3541-1-git-send-email-mw@semihalf.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Sunday 22 November 2015 08:53:46 Marcin Wojtas wrote: > > 3. Optimisations - concatenating TX descriptors' flush, basing on > xmit_more support and combined approach for finalizing egress processing. > Thanks to HR timer buffers can be released with small latency, which is > good for low transfer and small queues. Along with the timer, coalescing > irqs are used, whose threshold could be increased back to 15. > > If you are already reworking the TX path, it probably makes sense to support BQL as well, see the Marvell skge and sky2 drivers for examples using netdev_{tx_,}{sent,completed}_queue. Arnd