Hi Chuck, Just FYI. I have committed few fixes in wireshark trunk for RoCE and IB dissectors which will in general benefit other ULPs as well (primary for statefulness of ULPs) last month. I have few patches pending in my sandbox in area of RoCE and for other ULP that I will push in coming days, likely next week. I am currently actively testing them and have made steady progress so far. I will try to find sometime to review them next week. Regards, Parav Pandit On Wed, Nov 9, 2016 at 9:35 PM, Chuck Lever <chuck.lever@xxxxxxxxxx> wrote: > Hi- > > Thanks to Yan Berman, for a couple of years now we've had a basic > RPC-over-RDMA dissector in wireshark that can be used with ibdump > captures. There have been some bugs noted, but no-one has had the > cycles to dig in and address. > > Recently Tom Haynes helped me set up my own wireshark build so I > could help address some of the known issues. > > http://git.linux-nfs.org/?p=cel/wireshark.git;a=shortlog;h=refs/heads/rpc-rdma-fixes > > Posting here for review before I take the next steps to push these > to the wireshark community. Constructive critique and other > suggestions are welcome. > > The fixes so far focus on dissecting transport headers correctly. > There continue to be significant open issues with the dissector: > • There does not appear to be any support for dissecting > RPC-over-RDMA on iWARP or RoCE > • The NFS dissector does not handle portions of the XDR > stream that were transmitted via RDMA Read/Write > • RPC messages conveyed via RDMA_NOMSG are not recognized > or dissected > • There is no association between RDMA Reads and Writes > and the RPC-over-RDMA message they go with > • A CREQ / CREP pair are needed to identify which QP > numbers are used for RPC-over-RDMA traffic > • With TCP, the dissector fully outdents the RPC and NFS > dissection results; but with RDMA, the dissector places > the results in the tree under the Infiniband header > • Not enough error detection in the dissector > > -- > Chuck Lever > > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-rdma" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
