[openib-general] Re: MMIO reads for IPoIB w/MSI-X

[Michael S. Tsirkin]

Quoting r. Grant Grundler <iod00d at hp.com>:
> Subject: MMIO reads for IPoIB w/MSI-X
> 
> Hi all,
> In trying to understand why netperf TCP_STREAM sucks on the ia64 platform
> I'm slowly collecting more data. I didn't really have any time this
> week to poke at this issue.
> 
> The follow data confirms in MSI-X mode mthca is essentially doing
> no MMIO reads.
> 

An additional advantage of MSI-X is that interrupts are not shared.
But how is this related to ia64?

-- 
I dont speak for Mellanox.