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Commit b635e069 authored by David Daney's avatar David Daney Committed by David S. Miller
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netdev: octeon_mgmt: Free TX skbufs in a timely manner. 



We also reduce the high water mark to 1 so skbufs are not stranded for
long periods of time.  Since we are cleaning after each packet, no
need to do it in the transmit path.

Signed-off-by: default avatarDavid Daney <ddaney@caviumnetworks.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent a0cfa850

drivers/net/octeon/octeon_mgmt.c

+2 −3
Original line number Diff line number Diff line
@@ -832,9 +832,9 @@ static int octeon_mgmt_open(struct net_device *netdev) 
	mix_irhwm.s.irhwm = 0;

	cvmx_write_csr(CVMX_MIXX_IRHWM(port), mix_irhwm.u64);



	/* Interrupt when we have 5 or more packets to clean.  */

	/* Interrupt when we have 1 or more packets to clean.  */

	mix_orhwm.u64 = 0;

	mix_orhwm.s.orhwm = 5;

	mix_orhwm.s.orhwm = 1;

	cvmx_write_csr(CVMX_MIXX_ORHWM(port), mix_orhwm.u64);



	/* Enable receive and transmit interrupts */
@@ -995,7 +995,6 @@ static int octeon_mgmt_xmit(struct sk_buff *skb, struct net_device *netdev) 
	cvmx_write_csr(CVMX_MIXX_ORING2(port), 1);



	netdev->trans_start = jiffies;

	octeon_mgmt_clean_tx_buffers(p);

	octeon_mgmt_update_tx_stats(netdev);

	return NETDEV_TX_OK;

}