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net: dsa: b53: Turn off Broadcom tags for more switches

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Models such as BCM5395/97/98 and BCM53125/24/53115 and compatible require that
we turn on managed mode to actually act on Broadcom tags, otherwise they just
pass them through on ingress (host -> switch) and don't insert them in egress
(switch -> host). Turning on managed mode is simple, but requires us to
properly support ARL misses on multicast addresses which is a much more
involved set of changes not suitable for a bug fix for this release.

Reported-by: Jochen Friedrich <jochen@scram.de>
Fixes: 7edc58d614 ("net: dsa: b53: Turn on Broadcom tags")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli 2018-01-03 22:02:29 -08:00 committed by David S. Miller
parent 820d1d5eba
commit 54e98b5d66
1 changed files with 6 additions and 3 deletions
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9
drivers/net/dsa/b53/b53_common.c
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@ -1500,10 +1500,13 @@ static enum dsa_tag_protocol b53_get_tag_protocol(struct dsa_switch *ds,
{
struct b53_device *dev = ds->priv;
/* Older models support a different tag format that we do not
* support in net/dsa/tag_brcm.c yet.
/* Older models (5325, 5365) support a different tag format that we do
* not support in net/dsa/tag_brcm.c yet. 539x and 531x5 require managed
* mode to be turned on which means we need to specifically manage ARL
* misses on multicast addresses (TBD).
*/
if (is5325(dev) || is5365(dev) || !b53_can_enable_brcm_tags(ds, port))
if (is5325(dev) || is5365(dev) || is539x(dev) || is531x5(dev) ||
!b53_can_enable_brcm_tags(ds, port))
return DSA_TAG_PROTO_NONE;
/* Broadcom BCM58xx chips have a flow accelerator on Port 8