On 07/01/09 10:05, Peter Memishian wrote:
> Oh, they generally are generic enough in my experience... E.g. LRO,
> receive side scaling, etc. The problem is that Solaris has no APIs to
> support them and the entry bar for a driver developer getting back a new
> API into OpenSolaris is just too high. It's difficult enough to even get
> a driver in... I tried for 6 months and failed.
I'm all for fixing that. (I'd also be interesed to hear the reasons why
an administrator would need to e.g. disable LRO that are not workarounds
for other deficiencies in our stack.)
Think of other tunables that aren't generic though. Such as a tunable
representing the DMA copy threshold, or the ring size. Yes, many sites
can just use the default value. But some sites will have special needs
or desires, and its not fair to simply say "sorry, you can't have device
private tunables in Solaris."
- Garrett
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