[openib-general] Re: [PATCH] TX/RX_RING_SIZE as loadable parameters

[Michael S. Tsirkin]

Quoting Talpey, Thomas <Thomas.Talpey at netapp.com>:
> All these numbers should be settable per-interface, and should attempt
> to adhere to the principle of least surprise - do what other drivers in
> net/ do.

I guess was just trying to say that we need some nicer way to tune these things
that sticking a module parameter in there and asking the user to learn about
them.

For TX, we could just try resizing if the TX ring gets full.
But unfortunately, in IB we don't get an event if there's a TX RQ underrun.

-- 
Michael S. Tsirkin
Staff Engineer, Mellanox Technologies