Completion timestamp support for UD

Are completion timestamps supported for UD traffic on RoCE? Page 101 of the manual below says that RoCE timestamps won’t work on ConnectX-3 with UD or VLAN traffic. Is there any way to get timestamps for UD (for example, in an application that does not require the wc fields invalidated by the timestamp)?

Does the situation for UD timestamps get better with ConnectX-4 RoCE cards?

Do any InfiniBand NICs provide completion timestamps?

Manual: http://www.mellanox.com/related-docs/prod_software/Mellanox_OFED_Linux_User_Manual_v4.0.pdf http://www.mellanox.com/related-docs/prod_software/Mellanox_OFED_Linux_User_Manual_v4.0.pdf

Hi Anuj,

For this inquiry please open a ticket at support@mellanox.com mailto:support@mellanox.com so we can retrieve further information.

Thank you,

Karen.