[PATCH v9 1/4] PCI: Add new PCIe Fabric End Node flag, PCI_DEV_FLAGS_NO_RELAXED_ORDERING

On Wed, Aug 09, 2017 at 04:46:07PM +0000, Casey Leedom wrote:

| From: Raj, Ashok [off-list ref]
| Sent: Wednesday, August 9, 2017 8:58 AM
| ...
| As Casey pointed out in an earlier thread, we choose the heavy hammer
| approach because there are some that can lead to data-corruption as opposed
| to perf degradation.

Careful.  As far as I'm aware, there is no Data Corruption problem
whatsoever with Intel Root Ports and processing of Transaction Layer Packets
with and without the Relaxed Ordering Attribute set.

That's right.. no data-corruption on Intel parts :-).. It was with
other vendor. Only performance issue with intel root-ports in the parts
identified by the optimization guide. 

Cheers,
AShok