Commit 390f86df authored Mar 14, 2014 by Eric W. Biederman Committed by David S. Miller Mar 14, 2014

i40e: 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: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent b3529744

drivers/net/ethernet/intel/i40e/i40e_txrx.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -1302,6 +1302,9 @@ static int i40e_clean_rx_irq(struct i40e_ring *rx_ring, int budget)
		u8 rx_ptype;
		u64 qword;

		if (budget <= 0)
		return 0;

		rx_desc = I40E_RX_DESC(rx_ring, i);
		qword = le64_to_cpu(rx_desc->wb.qword1.status_error_len);
		rx_status = (qword & I40E_RXD_QW1_STATUS_MASK) >>