Commit 065fd83e authored Mar 16, 2020 by Jisheng Zhang Committed by David S. Miller Mar 16, 2020

net: mvneta: Fix the case where the last poll did not process all rx



For the case where the last mvneta_poll did not process all
RX packets, we need to xor the pp->cause_rx_tx or port->cause_rx_tx
before claculating the rx_queue.

Fixes: 2dcf75e2 ("net: mvneta: Associate RX queues with each CPU")
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent b317538c

drivers/net/ethernet/marvell/mvneta.c

+1 −2

Original line number	Diff line number	Diff line
		@@ -3036,11 +3036,10 @@ static int mvneta_poll(struct napi_struct *napi, int budget)
		/* For the case where the last mvneta_poll did not process all
		* RX packets
		*/
		rx_queue = fls(((cause_rx_tx >> 8) & 0xff));

		cause_rx_tx \|= pp->neta_armada3700 ? pp->cause_rx_tx :
		port->cause_rx_tx;

		rx_queue = fls(((cause_rx_tx >> 8) & 0xff));
		if (rx_queue) {
		rx_queue = rx_queue - 1;
		if (pp->bm_priv)

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