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| author |   Jonas Gorski <jonas.gorski@gmail.com> | 2025-04-14 22:04:34 +0200 |
|---|---|---|
| committer |   Jakub Kicinski <kuba@kernel.org> | 2025-04-16 18:10:53 -0700 |
| commit | 36355ddfe8955f226a88a543ed354b9f6b84cd70 (patch) | |
| tree | 43e1a1f3431a7b0b262f3d91e57fdff46790459c /drivers/net/dsa/b53/b53_common.c | |
| parent | Merge branch 'ynl-avoid-leaks-in-attr-override-and-spec-fixes-for-c' (diff) | |
| download | wireguard-linux-36355ddfe8955f226a88a543ed354b9f6b84cd70.tar.xz wireguard-linux-36355ddfe8955f226a88a543ed354b9f6b84cd70.zip | |
net: b53: enable BPDU reception for management port
For STP to work, receiving BPDUs is essential, but the appropriate bit
was never set. Without GC_RX_BPDU_EN, the switch chip will filter all
BPDUs, even if an appropriate PVID VLAN was setup.
Fixes: ff39c2d68679 ("net: dsa: b53: Add bridge support")
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Link: https://patch.msgid.link/20250414200434.194422-1-jonas.gorski@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/dsa/b53/b53_common.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/dsa/b53/b53_common.c b/drivers/net/dsa/b53/b53_common.c index 61d164ffb3ae..e5ba71897906 100644 --- a/drivers/net/dsa/b53/b53_common.c +++ b/drivers/net/dsa/b53/b53_common.c @@ -737,6 +737,15 @@ static void b53_enable_mib(struct b53_device *dev) b53_write8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc); } +static void b53_enable_stp(struct b53_device *dev) +{ + u8 gc; + + b53_read8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, &gc); + gc |= GC_RX_BPDU_EN; + b53_write8(dev, B53_MGMT_PAGE, B53_GLOBAL_CONFIG, gc); +} + static u16 b53_default_pvid(struct b53_device *dev) { if (is5325(dev) || is5365(dev)) @@ -876,6 +885,7 @@ static int b53_switch_reset(struct b53_device *dev) } b53_enable_mib(dev); + b53_enable_stp(dev); return b53_flush_arl(dev, FAST_AGE_STATIC); } |