On Wed, May 16, 2012 at 11:31:38AM +0800, YIMIN CHEN wrote:
> I am looking at a way to perform a flow match based on src mac, but
> only part of it, say the first 4 bytes of the mac address. Can I do
> similar things like nw_src_mask/nw_dst_mask?
>
> /* Information on wildcards for a flow, as a supplement to flow_t. */
> struct flow_wildcards {
> uint32_t wildcards; /* enum ofp_flow_wildcards (in host order). */
> uint32_t nw_src_mask; /* 1-bit in each significant nw_src bit. */
> uint32_t nw_dst_mask; /* 1-bit in each significant nw_dst bit. */
> };
>
> Can I add a new src mac mask to the flow_wildcards and change
> corresponding lookup functions to handle it similar to IP mask?
You could.
Joe Stringer posted patches to do this to ovs-dev just today. I haven't
reviewed them yet.
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