sfc: By default refill RX rings as soon as space for a batch
authorDavid Riddoch <driddoch@solarflare.com>
Wed, 11 Apr 2012 12:12:41 +0000 (13:12 +0100)
committerBen Hutchings <bhutchings@solarflare.com>
Thu, 10 May 2012 01:22:17 +0000 (02:22 +0100)
Previously we refilled with much larger batches, which caused large latency
spikes.  We now have many more much much smaller spikes!

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>

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