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Date: Sun, 23 Aug 2009 22:18:08 +0300 From: Aviv Greenberg <avivgnet@...il.com> To: Krzysztof Halasa <khc@...waw.pl> Cc: Walt Holman <walt@...mansrus.com>, David Miller <davem@...emloft.net>, linux-kernel@...r.kernel.org, netdev@...r.kernel.org Subject: Re: Strange network timeouts w/ 2.6.30.5 On Thu, Aug 20, 2009 at 03:45:21PM +0200, Krzysztof Halasa wrote: > Signed-off-by: Krzysztof HaĆasa <khc@...waw.pl> > > diff --git a/drivers/net/e100.c b/drivers/net/e100.c > index 014dfb6..b610088 100644 > --- a/drivers/net/e100.c > +++ b/drivers/net/e100.c > @@ -1762,9 +1762,12 @@ static int e100_rx_indicate(struct nic *nic, struct rx *rx, > > if (ioread8(&nic->csr->scb.status) & rus_no_res) > nic->ru_running = RU_SUSPENDED; > +#ifndef CONFIG_X86 > + /* FIXME interferes with swiotlb. */ > pci_dma_sync_single_for_device(nic->pdev, rx->dma_addr, > sizeof(struct rfd), > PCI_DMA_BIDIRECTIONAL); > +#endif > return -ENODATA; > } > > -- 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. > Krzysztof Halasa > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@...r.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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