Messages in this thread | | | Date | Fri, 29 May 2009 01:56:47 -0700 (PDT) | Subject | Re: [PATCH 2.6.30 1/2] cxgb3: fix dma mapping regression | From | David Miller <> |
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From: Divy Le Ray <divy@chelsio.com> Date: Thu, 28 May 2009 14:23:02 -0700
> From: Divy Le Ray <divy@chelsio.com> > > Commit 5e68b772e6efd189d6aca76f6872fb75d51ace60 > cxgb3: map entire Rx page, feed map+offset to Rx ring. > > introduced a regression on platforms defining DECLARE_PCI_UNMAP_ADDR() > and related macros as no-ops. > > Rx descriptors are fed with the a page buffer bus address + page chunk offset. > The page buffer bus address is set and retrieved through > pci_unamp_addr_set(), pci_unmap_addr(). > These functions being meaningless on x86 (if CONFIG_DMA_API_DEBUG is not set). > The HW ends up with a bogus bus address. > > This patch saves the page buffer bus address for all plaftorms. > > Signed-off-by: Divy Le Ray <divy@chelsio.com>
Applied.
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