I have an system in which performance critically depends upon the ability for the NIC to separate protocol headers and payload into separate buffers.
This is a proprietary protocol on top of Ethernet, not using TCP/IP.
The payload must be stored in system memory on a page (4K) boundary.
I am attempting to discern whether the ConnectX-3 NIC has the ability to support this behavior.
Our software system is built on top of FreeBSD and we have made suitable driver modifications for a few NICs from another vendor.
If we can do this with the CX3 NIC then it will open some new options for us and our customers in terms of hardware that will be available for use with our software.
I understand we probably need to modify the existing FreeBSD driver to operate the way we want; what I need to know is whether the NIC has the capabilities, and if so, how to program this behavior.