diff options
| author | Prabhanjan Sarnaik <sarnaik@marvell.com> | 2009-06-18 11:35:02 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-07-02 16:50:28 -0700 |
| commit | 5bbc754a8a4857eb09ebcfc5afe9fb6b59b75291 (patch) | |
| tree | 474e768209211b18c756a8cebe95dc83182dcdf1 /drivers | |
| parent | 69f1d553612091ec022a660c0ca58f98fe4e184c (diff) | |
mv643xx_eth: fix unicast filter programming in promiscuous mode
commit 6877f54e6a3326c99aaf84b7bff6a3019da0b847 upstream.
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>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers')
| -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 6bb5af35eda6..305e0d184fb0 100644 --- a/drivers/net/mv643xx_eth.c +++ b/drivers/net/mv643xx_eth.c @@ -1751,12 +1751,12 @@ 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) { @@ -1777,7 +1777,6 @@ 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); } |