]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commit
net: ethernet: stmmac: Disable hardware multicast filter
authorJonathan McDowell <noodles@earth.li>
Wed, 12 Aug 2020 19:37:23 +0000 (20:37 +0100)
committerDavid S. Miller <davem@davemloft.net>
Wed, 12 Aug 2020 20:12:52 +0000 (13:12 -0700)
commitdf43dd526e6609769ae513a81443c7aa727c8ca3
tree492677f3dc81e398cd8581497a0bba1e62c48129
parent592d751c1e174df5ff219946908b005eb48934b3
net: ethernet: stmmac: Disable hardware multicast filter

The IPQ806x does not appear to have a functional multicast ethernet
address filter. This was observed as a failure to correctly receive IPv6
packets on a LAN to the all stations address. Checking the vendor driver
shows that it does not attempt to enable the multicast filter and
instead falls back to receiving all multicast packets, internally
setting ALLMULTI.

Use the new fallback support in the dwmac1000 driver to correctly
achieve the same with the mainline IPQ806x driver. Confirmed to fix IPv6
functionality on an RB3011 router.

Cc: stable@vger.kernel.org
Signed-off-by: Jonathan McDowell <noodles@earth.li>
Signed-off-by: David S. Miller <davem@davemloft.net>
drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c