Onload 8.1 introduces a new mechanism for enabling users to reserve a hardware receive queue for a given singular application. This mechanism is currently only supported on X3522 network adapters.
This is via a new filter flag (EF_FILTER_FLAG_EXCLUSIVE_RXQ) that is applied via
ef_filter_spec_init(). With this change, users can ensure the
following properties for their application.
- Other applications will be unable to snoop on traffic filtered to this application.
- This application can guarantee that it will not receive any packets for which it did not explicitly add a filter.
In addition, this version of Onload introduces a new
function, ef_filter_spec_set_dest(). This API enables the user to
specify which hardware receive queue an application can listen on.
- EF_VI_EFCT_UNIQUEUE
- EF_VI_RX_EXCLUSIVE
Further details of specific exclusivity conditions can be found under the EF_FILTER_FLAG_EXCLUSIVE_RXQ documentation in the ef_vi User Guide (SF-114063-CD).