Re: RDMA Relaxed Ordering on Linux
From: Klaus Wacker <hidden>
Date: 2012-10-15 10:59:47
Hello, now we opted for a solution without being dependent on RO altogether. Thank you for your help. Kind regards Klaus Wacker IBM Systems &Technology Group, Systems Software Development SW Linux on System z Dev & Service Phone: +49-7031-16-3779 IBM Deutschland E-Mail: kdwacker-tA70FqPdS9Zhl2p70BpVqQ@public.gmane.orgm Schoenaicher Str. 220 71032 Boeblingen Germany IBM Deutschland Research & Development GmbH / Vorsitzende des Aufsichtsrats: Martina Koederitz Geschäftsführung: Dirk Wittkopp Sitz der Gesellschaft: Böblingen / Registergericht: Amtsgericht Stuttgart, HRB 243294 |------------> | From: | |------------> >--------------------------------------------------------------------------------------------------------------------------------------------------| |Roland Dreier [off-list ref] | >--------------------------------------------------------------------------------------------------------------------------------------------------| |------------> | To: | |------------> >--------------------------------------------------------------------------------------------------------------------------------------------------| |Klaus Wacker/Germany/IBM@IBMDE, | >--------------------------------------------------------------------------------------------------------------------------------------------------| |------------> | Date: | |------------> >--------------------------------------------------------------------------------------------------------------------------------------------------| |08/10/2012 18:06 | >--------------------------------------------------------------------------------------------------------------------------------------------------| |------------> | Subject: | |------------> >--------------------------------------------------------------------------------------------------------------------------------------------------| |Re: RDMA Relaxed Ordering on Linux | >--------------------------------------------------------------------------------------------------------------------------------------------------| On Mon, Oct 8, 2012 at 4:52 AM, Klaus Wacker [off-list ref] wrote:
we are doing a Infiniband/RoCE project on Linux/x86_64 based on Mellanox/RoCE cards. Our data exchange is heavily build on RDMA. For some reasons we want to suppress the Relaxed Ordering (RO) of RDMA. This would serialize the RDMA requests on the server in the strict order as issued
on
the client.
Does your x86 system really enable PCI relaxed ordering in the first place? - R. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html