On Wed, Dec 13, 2006 at 03:06:59PM -0600, Linas Vepstas wrote: > > The current driver code performs 512 DMA mappings of a bunch of > 32-byte ring descriptor structures. This is silly, as they are > all in contiguous memory. This patch changes the code to > dma_map_coherent() each rx/tx ring as a whole.
It's acutally dma_alloc_coherent now that you updated the patch :) > + chain->ring = dma_alloc_coherent(&card->pdev->dev, alloc_size, > + &chain->dma_addr, GFP_KERNEL); > > + if (!chain->ring) > + return -ENOMEM; > > + descr = chain->ring; > + memset(descr, 0, alloc_size); dma_alloc_coherent is defined to zero the allocated memory, so you won't need this memset. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
