Re: [PATCH] net: eth: altera: Resolve false errors from MSGDMA to TSE

From: David Miller
Date: Sat Apr 25 2015 - 14:44:10 EST

From: Vince Bridgers <vbridger@xxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 24 Apr 2015 02:32:07 -0500

> From: Chee Nouk Phoon <cnphoon@xxxxxxxxxx>
> This patch resolves false errors from MSGDMA in TX mSGDMA MM to ST
> mode, and is a continuation of the patch recently submitted by Andrea
> Oetken. The MSGDMA had a logic bug that masked detection of this issue
> prior to Quartus 14.1/Build 164. When the MSGDMA logic bug was addressed
> in Quartus 14.1/Build 164, the driver problem was exposed.
> The problem is corrected by making sure MSGDMA_DESC_CTL_TR_ERR_IRQ is not
> set for any of the transmit DMA descriptors, and only used for receive
> descriptors.
> Fixes: 71cd26e altera tse: Error-Bit on tx-avalon-stream always set.
> Signed-off-by: Chee Nouk Phoon <cnphoon@xxxxxxxxxx>
> Signed-off-by: Vince Bridgers <vbridger@xxxxxxxxxxxxxxxxxxxxx>a
> Cc: Andreas Oetken <ennoerlangen@xxxxxxxxx>

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