> From: Thomas Monjalon [mailto:thomas.monjalon at 6wind.com] > > 2015-12-21 10:38, Helin Zhang: > > > PCIe feature of 'Extended Tag' is important for 40G performance. > > > It adds its enabling during each port initialization, to ensure the > > > high performance. > > > > If it's so important, why the values are not documented? > > Please start to fill a file doc/guides/nics/i40e.rst to explain how the > > device works. Thanks > > It has already been mentioned in getting started guide for a long time. > Are you suggesting to move into i40e specifically? Thanks!
Yes you're right. I had forgotten that: http://dpdk.org/doc/guides-2.2/linux_gsg/enable_func.html#enabling-extended-tag-and-setting-max-read-request-size Yes, it would be better moved into an i40e doc. And maybe max_read_request_size may be commented to give advices on values. Thanks
