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Fix "Get Configuration" on vlan.html

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I noticed that entering some vlan config, clicking "Update/Create", then
clicking "Get Configuration" resulted in Tagged/Untagged/PVID displaying
completely wrong data. It looks like the parisng in fetchVLAN() in
vlan.js was just completely disconnected from the layout of the
registers read by vlan_get() in rtl837x_port.c. Who knows how that
happened.

1. Fix fetchVLAN() member/untag parsing: the old code read bits [9:0]
   as untagged and bits [10:19] as tagged, but the VLAN table register
   layout is members in [9:0] and untag in [19:10]. Now correctly
   derives tagged (member && !untag) and untagged (member && untag).

2. Add PVID to vlan.json response: PVID is stored per-port in separate
   PVID registers (RTL837x_PVID_BASE_REG), not in the VLAN table entry.
   The old code nonsensically tried to read it from bits [20:29] of the
   VLAN table. Add port_pvid_get() and build a pvid bitmask in
   send_vlan() so the JS can parse it correctly.

3. Remove auto-PVID logic from setC(): setC() is called by fetchVLAN()
   while it's loading existing config, and so this logic mangled the
   display of the existing config. Also, it doesn't make sense to
   auto-set the PVID for tagged members (PVID relates to untagged
   ingress.)
This commit is contained in:
Mark H. Spatz
2026-03-07 15:18:06 -05:00
parent e33cd9d0c5
commit 4cef63200f
4 changed files with 29 additions and 8 deletions
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rtl837x_port.h
+1
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@@ -28,6 +28,7 @@ int8_t vlan_get(register uint16_t vlan) __banked;
__xdata uint16_t vlan_name(register uint16_t vlan) __banked;
void vlan_setup(void) __banked;
void port_pvid_set(uint8_t port, __xdata uint16_t pvid) __banked;
uint16_t port_pvid_get(uint8_t port) __banked;
void vlan_create(void) __banked;
void vlan_delete(uint16_t vlan) __banked;
void port_mirror_set(register uint8_t port, __xdata uint16_t rx_pmask, __xdata uint16_t tx_pmask) __banked;