On 16 Mar 2021 at 11:25, Miroslav Lichvar wrote: > > In the Intel's igc driver I saw few SYNCE registers defined, > but no code using them. > Whoa. igc ? oh there's an i225... didn't know about this one, thanks for the pointer, this definitely looks promising :-) Looks like a successor to the i210 generation.
If I read the gossip correctly, the first generation of i225 are in circulation on some gaming motherboards from the first half of 2020, and have a hardware bug, something to do with the inter-packet gap. https://www.techpowerup.com/266335/intel-i225-foxville-2-5gbe-phy-has- a-flaw-affecting-performance-rocket-lake-s-2h-2020-production-confirme d A version 2 of the silicon, supposedly produced since Q4/2020, has this bug fixed. There's no public datasheet, just a data brief and a spec update (a list of SKU's + the erratum for v1 inter-packet gap bug.) https://www.intel.com/content/www/us/en/design/products-and-solutions/ networking-and-io/ethernet-controller-i225/technical-library.html And, I can actually see a stand-alone PCI-e board mentioned at ark.intel.com - the i225-T1 : https://ark.intel.com/content/www/us/en/ark/products/211808/intel-ethe rnet-network-adapter-i225-t1.html I cannot see this in the price lists at disties yet, will keep an eye on that one :-) The board may surface sooner from HP, Lenovo or Dell... There are no photoes yet - I'm curious if it has an SDP pin header, similar to the i210-T1. And this one looks cool too: http://www.commell.com.tw/Product/Peripheral/PCI%20Express%20mini%20ca rd/MPX-225.HTM Frank _______________________________________________ Linuxptp-devel mailing list Linuxptp-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/linuxptp-devel
