On Fri, Jan 03, 2020 at 01:57:22PM +0800, Weihang Li wrote: > This patch has no relationship with the userspace one you pointed out. > But I have pushed a userspace patch that support extended atomic on hip08, > maybe you were asking about the following one: > > https://github.com/linux-rdma/rdma-core/pull/638 Right, sorry > The kernel part is not needed by the userspace part, they are independent > of each other. > > We made this patch because we noticed that some other providers has also > support this feature in kernel, maybe there will be some kernel users in > future. I would be grateful if you could give me more suggestions. I think we have no kernel users of extended atomics, it is probably an mistake that other providers implemented this in the kernel. I would advise against making the hns send path more complicated with dead code. Jason