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dsa/mv88e6131: fix unknown multicast/broadcast forwarding on mv88e6085 

The 88e6085 has a few differences from the other devices in the port
control registers, causing unknown multicast/broadcast packets to get
dropped when using the standard port setup.

At the same time update kconfig to clarify that the mv88e6085 is now
supported.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Peter Korsgaard 2011-04-26 01:45:41 +00:00 committed by David S. Miller
parent 68972efa65
commit b3b270054b
2 changed files with 23 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
net/dsa/Kconfig
View File

@ -41,12 +41,12 @@ config NET_DSA_MV88E6XXX_NEED_PPU
default n
config NET_DSA_MV88E6131
bool "Marvell 88E6095/6095F/6131 ethernet switch chip support"
bool "Marvell 88E6085/6095/6095F/6131 ethernet switch chip support"
select NET_DSA_MV88E6XXX
select NET_DSA_MV88E6XXX_NEED_PPU
select NET_DSA_TAG_DSA
---help---
This enables support for the Marvell 88E6095/6095F/6131
This enables support for the Marvell 88E6085/6095/6095F/6131
ethernet switch chips.
config NET_DSA_MV88E6123_61_65

26
net/dsa/mv88e6131.c
View File

@ -207,8 +207,15 @@ static int mv88e6131_setup_port(struct dsa_switch *ds, int p)
* mode, but do not enable forwarding of unknown unicasts.
*/
val = 0x0433;
if (p == dsa_upstream_port(ds))
if (p == dsa_upstream_port(ds)) {
val |= 0x0104;
/*
* On 6085, unknown multicast forward is controlled
* here rather than in Port Control 2 register.
*/
if (ps->id == ID_6085)
val |= 0x0008;
}
if (ds->dsa_port_mask & (1 << p))
val |= 0x0100;
REG_WRITE(addr, 0x04, val);
@ -251,10 +258,19 @@ static int mv88e6131_setup_port(struct dsa_switch *ds, int p)
* If this is the upstream port for this switch, enable
* forwarding of unknown multicast addresses.
*/
val = 0x0080 | dsa_upstream_port(ds);
if (p == dsa_upstream_port(ds))
val |= 0x0040;
REG_WRITE(addr, 0x08, val);
if (ps->id == ID_6085)
/*
* on 6085, bits 3:0 are reserved, bit 6 control ARP
* mirroring, and multicast forward is handled in
* Port Control register.
*/
REG_WRITE(addr, 0x08, 0x0080);
else {
val = 0x0080 | dsa_upstream_port(ds);
if (p == dsa_upstream_port(ds))
val |= 0x0040;
REG_WRITE(addr, 0x08, val);
}
/*
* Rate Control: disable ingress rate limiting.