diff options
| author | Prabhanjan Sarnaik <sarnaik@marvell.com> | 2009-06-18 11:35:02 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-06-19 01:12:52 -0700 |
| commit | 6877f54e6a3326c99aaf84b7bff6a3019da0b847 (patch) | |
| tree | f8ff9050739f64627b4a3a352047576dc1a8e76d /drivers/net/mv643xx_eth.c | |
| parent | 40c27eeac42600b21d483087ff3885b31e6857c9 (diff) | |
mv643xx_eth: fix unicast filter programming in promiscuous mode
The Unicast Promiscious Mode (UPM) bit in the mv643xx_eth port
configuration register doesn't do exactly what its name would suggest:
setting this bit merely enables reception of all unicast frames with a
destination address that differs from our local MAC address in bits
[47:4]. In particular, it doesn't have any effect on unicast frames
with a destination address that matches our MAC address in bits [47:4]
-- these will still be tested against the 16-entry unicast address
filter table.
Therefore, if the interface is set to promiscuous mode, just setting
the unicast promiscuous bit isn't enough -- we need to set all filter
bits in the unicast filter table to 1 as well.
Reported-by: Sachin Sanap <ssanap@marvell.com>
Signed-off-by: Prabhanjan Sarnaik <sarnaik@marvell.com>
Tested-by: Siddarth Gore <gores@marvell.com>
Tested-by: Mahavir Jain <mjain@marvell.com>
Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Cc: stable@kernel.org
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/mv643xx_eth.c')
| -rw-r--r-- | drivers/net/mv643xx_eth.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c index 745ae8b4a2e8..0f32db3e92ad 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -1750,12 +1750,12 @@ static void mv643xx_eth_program_unicast_filter(struct net_device *dev) uc_addr_set(mp, dev->dev_addr); - port_config = rdlp(mp, PORT_CONFIG); + port_config = rdlp(mp, PORT_CONFIG) & ~UNICAST_PROMISCUOUS_MODE; + nibbles = uc_addr_filter_mask(dev); if (!nibbles) { port_config |= UNICAST_PROMISCUOUS_MODE; - wrlp(mp, PORT_CONFIG, port_config); - return; + nibbles = 0xffff; } for (i = 0; i < 16; i += 4) { @@ -1776,7 +1776,6 @@ static void mv643xx_eth_program_unicast_filter(struct net_device *dev) wrl(mp, off, v); } - port_config &= ~UNICAST_PROMISCUOUS_MODE; wrlp(mp, PORT_CONFIG, port_config); } |