sfc: Expand/correct comments on collector behaviour and function usage
authorBen Hutchings <bhutchings@solarflare.com>
Mon, 6 Dec 2010 22:55:00 +0000 (22:55 +0000)
committerBen Hutchings <bhutchings@solarflare.com>
Mon, 6 Dec 2010 22:55:00 +0000 (22:55 +0000)
Document exactly which registers and functions have special behaviour,
and why races on writes to descriptor pointers are safe.

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

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