target/linux/generic/backport-6.1/790-51-v6.10-net-dsa-mt7530-fix-port-mirroring-for-MT7988-SoC-swi.patch

   1 From 019a17a5e76940ea86114838d1d638d4dc8d3750 Mon Sep 17 00:00:00 2001
   2 From: =?UTF-8?q?Ar=C4=B1n=C3=A7=20=C3=9CNAL?= <arinc.unal@arinc9.com>
   3 Date: Sat, 13 Apr 2024 16:01:40 +0300
   4 Subject: [PATCH 3/5] net: dsa: mt7530: fix port mirroring for MT7988 SoC
   5  switch
   6 MIME-Version: 1.0
   7 Content-Type: text/plain; charset=UTF-8
   8 Content-Transfer-Encoding: 8bit
   9
  10 The "MT7988A Wi-Fi 7 Generation Router Platform: Datasheet (Open Version)
  11 v0.1" document shows bits 16 to 18 as the MIRROR_PORT field of the CPU
  12 forward control register. Currently, the MT7530 DSA subdriver configures
  13 bits 0 to 2 of the CPU forward control register which breaks the port
  14 mirroring feature for the MT7988 SoC switch.
  15
  16 Fix this by using the MT7531_MIRROR_PORT_GET() and MT7531_MIRROR_PORT_SET()
  17 macros which utilise the correct bits.
  18
  19 Fixes: 110c18bfed41 ("net: dsa: mt7530: introduce driver for MT7988 built-in switch")
  20 Signed-off-by: Arınç ÜNAL <arinc.unal@arinc9.com>
  21 Acked-by: Daniel Golle <daniel@makrotopia.org>
  22 Signed-off-by: David S. Miller <davem@davemloft.net>
  23 ---
  24  drivers/net/dsa/mt7530.c | 10 ++++++----
  25  1 file changed, 6 insertions(+), 4 deletions(-)
  26
  27 --- a/drivers/net/dsa/mt7530.c
  28 +++ b/drivers/net/dsa/mt7530.c
  29 @@ -1890,14 +1890,16 @@ mt7530_port_vlan_del(struct dsa_switch *
  30
  31  static int mt753x_mirror_port_get(unsigned int id, u32 val)
  32  {
  33 -       return (id == ID_MT7531) ? MT7531_MIRROR_PORT_GET(val) :
  34 -                                  MIRROR_PORT(val);
  35 +       return (id == ID_MT7531 || id == ID_MT7988) ?
  36 +                      MT7531_MIRROR_PORT_GET(val) :
  37 +                      MIRROR_PORT(val);
  38  }
  39
  40  static int mt753x_mirror_port_set(unsigned int id, u32 val)
  41  {
  42 -       return (id == ID_MT7531) ? MT7531_MIRROR_PORT_SET(val) :
  43 -                                  MIRROR_PORT(val);
  44 +       return (id == ID_MT7531 || id == ID_MT7988) ?
  45 +                      MT7531_MIRROR_PORT_SET(val) :
  46 +                      MIRROR_PORT(val);
  47  }
  48
  49  static int mt753x_port_mirror_add(struct dsa_switch *ds, int port,