tree 2e4bfac82b2123320f1722797932c07257c716d5
parent 569375fb5732b7d7bb5be126c6243acf658697e4
author Ioana Ciocoi Radulescu <ruxandra.radulescu@nxp.com> 1543249651 +0000
committer David S. Miller <davem@davemloft.net> 1543431465 -0800

dpaa2-eth: Release buffers back to pool on XDP_DROP

Instead of freeing the RX buffers, release them back into the pool.
We wait for the maximum number of buffers supported by a single
release command to accumulate before issuing the command.

Also, don't unmap the Rx buffers at the beginning of the Rx routine
anymore, since that would require remapping them before release.
Instead, just do a DMA sync at first and only unmap if the frame is
meant for the stack.

Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>