On Sun, 2011-12-18 at 00:03 +0200, Or Gerlitz wrote: > Bart Van Assche <bvanass...@acm.org> wrote: > > > The default block layer timeout is 30 seconds. > > Could you provider a pointer to where this is defined? > > > Typical values for the QP local ack > > timeout and retry count are 19 and 7 respectively, which means > > that it can take up to 60.1 seconds before a HCA submits an error > > completion. > > isn't timeout(R,X) = R * ~4us * 2^X ==> timeout(7,19) = 7 * ~2seconds > = ~14 seconds
C9-141 says we could take up to 4 times longer than 4us * 2^X to detect the ACK loss. -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
