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Commit fdabfc8a authored by Eric W. Biederman's avatar Eric W. Biederman Committed by David S. Miller
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ixgbe: Don't receive packets when the napi budget == 0 



Processing any incoming packets with a with a napi budget of 0
is incorrect driver behavior.

This matters as netpoll will shortly call drivers with a budget of 0
to avoid receive packet processing happening in hard irq context.

Signed-off-by: default avatar"Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 57ba34c9

drivers/net/ethernet/intel/ixgbe/ixgbe_main.c

+2 −2
Original line number Diff line number Diff line
@@ -2076,7 +2076,7 @@ static int ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector, 
#endif /* IXGBE_FCOE */

	u16 cleaned_count = ixgbe_desc_unused(rx_ring);



	do {

	while (likely(total_rx_packets < budget)) {

		union ixgbe_adv_rx_desc *rx_desc;

		struct sk_buff *skb;
@@ -2151,7 +2151,7 @@ static int ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector, 


		/* update budget accounting */

		total_rx_packets++;

	} while (likely(total_rx_packets < budget));

	}



	u64_stats_update_begin(&rx_ring->syncp);

	rx_ring->stats.packets += total_rx_packets;