On Wednesday 20 Jul 2011 20:32:14 John Julien wrote: > Can this code from a Kernel Module: > rxr->rx_desc_ring[j] = pci_alloc_consistent(bp->pdev, RXBD_RING_SIZE, > &rxr->rx_desc_mapping[j]); > > Be translated into this code in an iPXE driver? > rxr->rx_desc_ring[j] = malloc_dma(RXBD_RING_SIZE, RXBD_RING_SIZE); > rxr->rx_desc_mapping[j] = virt_to_bus(rxr->rx_desc_ring[j]);
>From the kernel code, I don't think you need the memory to be aligned on its own size. It should work, but you would get more efficient use of memory by specifying no particular alignment: rxr->rx_desc_ring[j] = malloc_dma(RXBD_RING_SIZE, 0); rxr->rx_desc_mapping[j] = virt_to_bus(rxr->rx_desc_ring[j]); Michael _______________________________________________ ipxe-devel mailing list [email protected] https://lists.ipxe.org/mailman/listinfo/ipxe-devel
