Presently, HW is programmed only to receive packets from LPB pool.
Making all packets received from LPB pool.
But, CNXK HW supports two pools,
- SPB -> packets with smaller size (less than 4K)
- LPB -> packets with bigger size (greater than 4K)
Patch enables multiple mempool capability, pool is selected based
on the packet's length. So, basically, PMD programs HW for receiving
packets from both SPB and LPB pools based on the packet's length.
This is achieved by enabling rx multiple mempool offload,
RTE_ETH_RX_OFFLOAD_MUL_MEMPOOL. This allows the application to send
more than one pool(in our case two) to the driver, with different
segment(packet) lengths, which helps the driver to configure both
pools based on segment lengths.
This is often useful for saving the memory where the application
can create a different pool to steer the specific size of the
packet, thus enabling effective use of memory.
Signed-off-by: Hanumanth Pothula <hpothula@marvell.com>
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