On 06/27/13 23:22, David Dillow wrote:
On Wed, 2013-06-12 at 15:36 +0200, Bart Van Assche wrote:
From: Vu Pham <[email protected]>
Allow the InfiniBand RC retry count to be configured by the user
as an option in the target login string. The transport layer
timeout in nanoseconds is computed as follows from the retry count:
rc_timeout = rc_retry_count * 4 * 4096 * (1 << qp->timeout)
The default value for tl_retry_count is changed from 7 into 2.
I'm not sure you should change the default, but I've not thought about
it much.
It should probably also have a default set via module parameter similar
to the indirect_command_descriptors, etc. Unless srp_daemon is patched,
this won't be usable without that. I'm not tied to this position, though
-- we should be moving in the direction of more control via the login
string.
Hello Dave,
Are you perhaps aware of any IB networks where it is necessary to set
the RC retry count above 2 ? Anyway, I can prepare an srp_daemon patch
that makes it easy to configure this parameter if you want.
Bart.
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