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mv643xx_eth: fix unicast address filter corruption on mtu change 

When mv643xx_eth_open() is called to up an interface, port_start()
will first re-program the unicast address filter, and then
re-initialise the PORT_CONFIG register, but that will disable unicast
promiscuous mode if it was enabled by the unicast address filter setup.

This isn't a problem on ifconfig up, as ->set_rx_mode() will be called
shortly afterwards which will program the filters again, but it does
trigger when changing the MTU, which calls mv643xx_eth_stop() and then
mv643xx_eth_open() by hand to repopulate the receive rings with skbuffs
of the new size.

Swap the initialisation of the PORT_START register and the call to
the unicast filter setup function to fix this.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Lennert Buytenhek 2009-03-13 15:48:02 -07:00 committed by David S. Miller
parent 08ec9af1c0
commit 5a89392225
1 changed files with 5 additions and 5 deletions
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10
drivers/net/mv643xx_eth.c
View File

@ -2029,11 +2029,6 @@ static void port_start(struct mv643xx_eth_private *mp)
txq_set_fixed_prio_mode(txq);
}
/*
* Add configured unicast address to address filter table.
*/
mv643xx_eth_program_unicast_filter(mp->dev);
/*
* Receive all unmatched unicast, TCP, UDP, BPDU and broadcast
* frames to RX queue #0, and include the pseudo-header when
@ -2046,6 +2041,11 @@ static void port_start(struct mv643xx_eth_private *mp)
*/
wrlp(mp, PORT_CONFIG_EXT, 0x00000000);
/*
* Add configured unicast addresses to address filter table.
*/
mv643xx_eth_program_unicast_filter(mp->dev);
/*
* Enable the receive queues.
*/