Messages in this thread | | | Date | Sun, 18 Nov 2007 16:17:27 -0800 | From | Arjan van de Ven <> | Subject | Re: Regression in 2.6.24-rc3 - 64-bit DMA fails for BCM94311MCG rev 02 |
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On Sun, 18 Nov 2007 18:04:51 -0600 Larry Finger <Larry.Finger@lwfinger.net> wrote:
> I get a failure of 64-bit DMA on a BCM94311MCG rev 02 wireless > interface running on x86_64 using an AMD Turion 64 X2 processor on an > HP Pavilion dv2125nr laptop. The error code indicates that the > interface is getting a descriptor read error, even though the > descriptor ring and all the DMA buffers have been checked when > allocated. This particular card version is newly supported; however, > it was working correctly on 2.6.24-rc2. >
worth adding a pci_set_dma_mask(pdev, DMA_32BIT_MASK); in the driver, just after pci_enable_device(); (also check if there's other pci_set_dma_mask functions, to make sure it doesn't get set back to 64 bit)
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