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netdev: octeon_mgmt: Free TX skbufs in a timely manner.

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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: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Daney 2010-05-05 13:03:11 +00:00 committed by David S. Miller
parent a0cfa850ac
commit b635e06993
1 changed files with 2 additions and 3 deletions
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5
drivers/net/octeon/octeon_mgmt.c
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@ -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;
}