target/linux/generic/backport-5.10/790-v5.13-0001-net-dsa-b53-Add-debug-prints-in-b53_vlan_enable.patch

   1 From ee47ed08d75e8f16b3cf882061ee19c2ea19dd6c Mon Sep 17 00:00:00 2001
   2 From: Florian Fainelli <f.fainelli@gmail.com>
   3 Date: Wed, 10 Mar 2021 10:52:26 -0800
   4 Subject: [PATCH] net: dsa: b53: Add debug prints in b53_vlan_enable()
   5
   6 Having dynamic debug prints in b53_vlan_enable() has been helpful to
   7 uncover a recent but update the function to indicate the port being
   8 configured (or -1 for initial setup) and include the global VLAN enabled
   9 and VLAN filtering enable status.
  10
  11 Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
  12 Reviewed-by: Andrew Lunn <andrew@lunn.ch>
  13 Signed-off-by: David S. Miller <davem@davemloft.net>
  14 ---
  15  drivers/net/dsa/b53/b53_common.c | 11 +++++++----
  16  1 file changed, 7 insertions(+), 4 deletions(-)
  17
  18 --- a/drivers/net/dsa/b53/b53_common.c
  19 +++ b/drivers/net/dsa/b53/b53_common.c
  20 @@ -349,7 +349,7 @@ static void b53_set_forwarding(struct b5
  21         b53_write8(dev, B53_CTRL_PAGE, B53_IP_MULTICAST_CTRL, mgmt);
  22  }
  23
  24 -static void b53_enable_vlan(struct b53_device *dev, bool enable,
  25 +static void b53_enable_vlan(struct b53_device *dev, int port, bool enable,
  26                             bool enable_filtering)
  27  {
  28         u8 mgmt, vc0, vc1, vc4 = 0, vc5;
  29 @@ -431,6 +431,9 @@ static void b53_enable_vlan(struct b53_d
  30         b53_write8(dev, B53_CTRL_PAGE, B53_SWITCH_MODE, mgmt);
  31
  32         dev->vlan_enabled = enable;
  33 +
  34 +       dev_dbg(dev->dev, "Port %d VLAN enabled: %d, filtering: %d\n",
  35 +               port, enable, enable_filtering);
  36  }
  37
  38  static int b53_set_jumbo(struct b53_device *dev, bool enable, bool allow_10_100)
  39 @@ -708,7 +711,7 @@ int b53_configure_vlan(struct dsa_switch
  40                 b53_do_vlan_op(dev, VTA_CMD_CLEAR);
  41         }
  42
  43 -       b53_enable_vlan(dev, dev->vlan_enabled, ds->vlan_filtering);
  44 +       b53_enable_vlan(dev, -1, dev->vlan_enabled, ds->vlan_filtering);
  45
  46         b53_for_each_port(dev, i)
  47                 b53_write16(dev, B53_VLAN_PAGE,
  48 @@ -1390,7 +1393,7 @@ int b53_vlan_filtering(struct dsa_switch
  49         if (switchdev_trans_ph_prepare(trans))
  50                 return 0;
  51
  52 -       b53_enable_vlan(dev, dev->vlan_enabled, vlan_filtering);
  53 +       b53_enable_vlan(dev, port, dev->vlan_enabled, vlan_filtering);
  54
  55         return 0;
  56  }
  57 @@ -1415,7 +1418,7 @@ int b53_vlan_prepare(struct dsa_switch *
  58         if (vlan->vid_end >= dev->num_vlans)
  59                 return -ERANGE;
  60
  61 -       b53_enable_vlan(dev, true, ds->vlan_filtering);
  62 +       b53_enable_vlan(dev, port, true, ds->vlan_filtering);
  63
  64         return 0;
  65  }