On 11/1/2017 8:00 PM, Jason Gunthorpe wrote:
if (attr_mask & ~((1ULL << (IBV_QP_DEST_QPN + 1)) - 1))
The above rdma-core code is correct, look at verbs.h:
IBV_QP_DEST_QPN = 1 << 20,
Okay, then it should be
if (attr_mask & ~(IB_QP_RATE_LIMIT - 1))
Why the library should support values that were never exposed in verbs.h ?
In addition, running over latest few kernel with your suggestion will
fail any way [1] as those bits are marked as RESERVED in IB core and
aren't really supported.
[1]
http://elixir.free-electrons.com/linux/v4.14-rc7/source/drivers/infiniband/core/uverbs_cmd.c#L2041
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