This patch series adds support for frontend-configurable toeplitz hashing in xen-netback (on the guest receive side). This support has been testing against a Windows frontend and has proven to be sufficient to pass the Microsoft HCK NDIS RSS tests.
For convenience my development branch is available at http://xenbits.xen.org/gitweb/?p=people/pauldu/linux.git;a=shortlog;h=refs/heads/rss18. Patch #1 contains a small modification to struct sk_buff to use one more bit's worth of space to enable full hasf information to be stored (as opposed to simply whether a calculated hash is L4 or not). Patch #2 re-imports the canonical netif.h from the Xen master branch at git://xenbits.xen.org/xen.git. To minimize the diff it was post-processed as detailed in the commit message. Patch #3 fixes a short-coming in netback so that it can actually cope with multiple extra_info fragments being passed from the frontend on the guest transmit side. Patch #4 is a trivial patch to reduce log spam from netback. Patch #5 adds support for a new shared ring for control messages between frontend and backend as detailed in the updated netif.h. Patch #6 builds on patch #5 and adds support for messages passed from the frontend to configure a toeplitz hash of packets on the guest receive side. Patch #7 adds code to pass the hash calculated by netback to the frontend Patch #8 adds code to take hashes calculated by the guest on its transmit side and set the approprate values in the constructed socket buffer. _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
