dpaa2-eth: configure the cache stashing amount on a queue

Configure the amount of 64 bytes of frame, annotation and context data
that will be cache stashed for a specific frame queue.  Since the frame
context is not used, configure that only 64 bytes of frame data and 64
bytes of annotation will be stashed.
Signed-off-by: NIoana Ciornei <ioana.ciornei@nxp.com>
Acked-by: NDavid S. Miller <davem@davemloft.net>
Signed-off-by: NLi Yang <leoyang.li@nxp.com>

drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c

@@ -2303,9 +2303,14 @@ static int setup_rx_flow(struct dpaa2_eth_priv *priv,
 	queue.destination.type = DPNI_DEST_DPCON;
 	queue.destination.priority = 1;
 	queue.user_context = (u64)(uintptr_t)fq;
+	queue.flc.stash_control = 1;
+	queue.flc.value &= 0xFFFFFFFFFFFFFFC0;
+	/* 01 01 00 - data, annotation, flow context */
+	queue.flc.value |= 0x14;
 	err = dpni_set_queue(priv->mc_io, 0, priv->mc_token,
 			     DPNI_QUEUE_RX, 0, fq->flowid,
-			     DPNI_QUEUE_OPT_USER_CTX | DPNI_QUEUE_OPT_DEST,
+			     DPNI_QUEUE_OPT_USER_CTX | DPNI_QUEUE_OPT_DEST |
+			     DPNI_QUEUE_OPT_FLC,
 			     &queue);
 	if (err) {
 		dev_err(dev, "dpni_set_queue(RX) failed\n");