• Divy Le Ray's avatar
    cxgb3: fix dma mapping regression · 10b6d956
    Divy Le Ray authored
    Commit 5e68b772
      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: default avatarDivy Le Ray <divy@chelsio.com>
    Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
    10b6d956
adapter.h 10.6 KB