> On 31 Mar 2021, at 01:12, Jason Gunthorpe <jgg@xxxxxxxxxx> wrote:
>
> On Thu, Mar 25, 2021 at 02:05:47PM +0100, Håkon Bugge wrote:
>> Introduce the ability for both user-space and kernel ULPs to adjust
>> the minimum RNR Retry timer. The INIT -> RTR transition executed by
>> RDMA CM will be used for this adjustment. This avoids an additional
>> ib_modify_qp() call.
>
> Can't userspace override the ibv_modify_qp() call the librdmacm wants
> to make to do this?
Not sure I understand. The point is, that user-land which intends to set said timer, can do so without an additional ibv_modify_qp() call. May be I should have added:
Shamelessly-inspired-by: 2c1619edef61 ("IB/cma: Define option to set ack timeout and pack tos_set")
> You'll need to make the rdma-core patches before this can go ahead
Ooh, I thought it was the other way around. Will do.
I also intend to send an RDS patch, so there will be at least two users of this.
Thxs, Håkon
