From mboxrd@z Thu Jan 1 00:00:00 1970 From: vinod.koul@intel.com (Vinod Koul) Date: Wed, 14 Oct 2015 20:21:00 +0530 Subject: [PATCH] dmaengine: xgene-dma: Remove memcpy offload support due to performance drop In-Reply-To: <1444830907-8035-1-git-send-email-rsahu@apm.com> References: <1444830907-8035-1-git-send-email-rsahu@apm.com> Message-ID: <20151014145100.GX27370@localhost> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Wed, Oct 14, 2015 at 07:25:07PM +0530, Rameshwar Prasad Sahu wrote: > The DMA engine supports memory copy, RAID5 XOR, RAID6 PQ, and other > computations. But the bandwidth of the entire DMA engine is shared > among all channels. This patch re-configures operations availability > such that one can achieve maximum performance for XOR and PQ > computation by removing the memory offload operations. Applied, thanks -- ~Vinod