Messages in this thread | | | Date | Tue, 19 Mar 2013 12:33:59 -0400 (EDT) | Subject | Re: [PATCH] ixp4xx_eth: set the device dma_coherent_mask | From | David Miller <> |
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From: Christophe Aeschlimann <aeschlimann@gmail.com> Date: Tue, 19 Mar 2013 16:59:25 +0100
> Without the mask it is impossible to take the network interface up > since it returns the following error: > >> net eth1: coherent DMA mask is unset >> ifconfig: SIOCSIFFLAGS: Cannot allocate memory > > Tested on an out-of-tree ixp425 based board. > > Signed-off-by: Christophe Aeschlimann <c.aeschlimann@acn-group.ch> ... > @@ -1398,6 +1398,7 @@ static int eth_init_one(struct platform_device *pdev) > return -ENOMEM; > > SET_NETDEV_DEV(dev, &pdev->dev); > + dev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
Hmmm, shouldn't this be the default value, set by the bus layer or similar?
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