Re: [PATCH] Allow skb headroom to be overridden

From: Anton Blanchard [EMAIL PROTECTED] Date: Sat, 25 Mar 2006 23:19:29 +1100 Previously we added NET_IP_ALIGN so an architecture can override the padding done to align headers. The next step is to allow the skb headroom to be overridden. We currently always reserve 16 bytes to grow into,

[PATCH] Allow skb headroom to be overridden

Previously we added NET_IP_ALIGN so an architecture can override the padding done to align headers. The next step is to allow the skb headroom to be overridden. We currently always reserve 16 bytes to grow into, meaning all DMAs start 16 bytes into a cacheline. On ppc64 we really want DMA writes