From mboxrd@z Thu Jan 1 00:00:00 1970 From: Krzysztof Halasa Subject: Re: Strange network timeouts w/ 2.6.30.5 Date: Sun, 23 Aug 2009 22:02:27 +0200 Message-ID: References: <985009134.71250769263099.JavaMail.root@mail.holmansrus.com> <20090823191808.GA29972@linux-gec2.site> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: Walt Holman , David Miller , linux-kernel@vger.kernel.org, netdev@vger.kernel.org To: Aviv Greenberg Return-path: In-Reply-To: <20090823191808.GA29972@linux-gec2.site> (Aviv Greenberg's message of "Sun\, 23 Aug 2009 22\:18\:08 +0300") Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Aviv Greenberg writes: > Why do you use PCI_DMA_BIDIRECTIONAL? From what i get, the device writes and the > cpu reads - so the direction should be PCI_DMA_FROMDEVICE. Maybe just maybe the > bi-directionality bites you in the swiotlb case. Yes, it's just been confirmed that FROMDEVICE at this point happens to work. -- Krzysztof Halasa