Re: Setting up siw devices

[Jason Gunthorpe <jgg@ziepe.ca>]

On Fri, Aug 23, 2019 at 04:17:50PM +0200, Marcin Mielniczuk wrote:
> While the device is detected by ibv_devices and rping works, I can't get
> ibv_rc_pingpong working
> (and as far as I understand, RC should be supported by the iWARP driver)
> 
> rping works:
> 
>     server$  rping -s -a 10.30.10.211 -v
>     server ping data: rdma-ping-0:
> ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqr
>     server ping data: rdma-ping-1:
> BCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrs
>     server DISCONNECT EVENT...
>     wait for RDMA_READ_ADV state 10
> 
>     client$ rping -c -a 10.30.10.211 -C 2 -v
>     (output omitted)
> 
> 
> But ibv_rc_pingpong doesn't
> 
>     server$ ibv_rc_pingpong -d iwp____
>       local address:  LID 0x0000, QPN 0x000001, PSN 0xb8aafc, GID ::
>     Failed to modify QP to RTS
>     Couldn't connect to remote QP
>     client$ ibv_rc_pingpong  -d iwp____ 10.30.10.211
>       local address:  LID 0x0000, QPN 0x000001, PSN 0x71abc5, GID ::
>     client read/write: Protocol not supported
>     Couldn't read/write remote address

iwarp does not work with the pingpong examples as iwarp requires RDMA
CM and the examples don't use it.

Jason