On Sep 13, 2017 6:43 AM, "David Horn" <dhorn2...@gmail.com> wrote:
I was under the impression that these Mellanox 40G->4x10G breakout cables were for the Mellanox switch side (not Mellanox NIC) to provide more flexible utilization options for the switch. I have never heard of doing this from the 40G NIC (on any OS). Please reply if you have seen this working on *any* OS from the Mellanox 40G NIC, as I am curious as well and have a both ConnectX-3 and -4 HW. -Dave On Wed, Sep 13, 2017 at 7:00 AM, Andrey V. Elsukov <bu7c...@yandex.ru> wrote: > Hi All, > > we are wondering, is it possible to use such configuration under > FreeBSD? I.e. split one mce interface 40G => 4x10G or 100G => 4x25G? > > -- > WBR, Andrey V. Elsukov > > I was also under the impression that they were exclusively used on the switch for Mellanox. Mellanox's documentation seems to back this up: "Important: The 40GbE split options is supported only on Mellanox switches and not supported on Mellanox adapters (e.g. ConnectX-3) when equipped with 40GbE ports. In case you wish to limit the 40GbE port on the adapter to 10GbE you can use QSA or similar 40GbE-10GbE cables (Refer to Mellanox.com - here)" [1] That doesn't mention their newer NICs, however, though I don't see a mention of the feature on their product sheets. Matt [1] https://community.mellanox.com/docs/DOC-1450 _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
