Re: using same IP subnet on multiple interfaces (was: dual HCAs with upstream kernel)

2010-08-15 Thread Or Gerlitz
Hefty, Sean wrote: Does anyone have a system with multiple HCAs that's running a recent upstream kernel? Oracle has reported a bug connecting between two HCAs in the same system using the rdma_cm Sean, With 2.6.35, I was hitting the reported failure (address error event, status

Re: using same IP subnet on multiple interfaces (was: dual HCAs with upstream kernel)

2010-08-15 Thread Jason Gunthorpe
On Sun, Aug 15, 2010 at 10:50:17AM +0300, Or Gerlitz wrote: the echo requests go on the wire, the replies not, probably (...) internally, Patrick? What all these settings do is let a socket that is bound to a device resolve the local host's address through ARP. The socket that is bound to a

RDMA tutorial feedback

2010-08-15 Thread Tarick Bedeir
Hello, When I started working on an IB-aware app last year, I couldn't find much in the way of an RDMA/verbs/IB tutorial on the web. This doesn't seem to have changed, so I put together a few posts on my blog that I hope will be of use to the next guy who's got to start from scratch: