target/linux/generic/backport-5.15/705-08-v5.19-net-dsa-mt7530-move-autoneg-handling-to-PCS-validati.patch

   1 From 2b0ee6768f3ac09072e5fd60b36580924e1cfa1c Mon Sep 17 00:00:00 2001
   2 From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
   3 Date: Mon, 11 Apr 2022 10:46:32 +0100
   4 Subject: [PATCH 08/13] net: dsa: mt7530: move autoneg handling to PCS
   5  validation
   6 MIME-Version: 1.0
   7 Content-Type: text/plain; charset=UTF-8
   8 Content-Transfer-Encoding: 8bit
   9
  10 Move the autoneg bit handling to the PCS validation, which allows us to
  11 get rid of mt753x_phylink_validate() and rely on the default
  12 phylink_generic_validate() implementation for the MAC side.
  13
  14 Tested-by: Marek Behún <kabel@kernel.org>
  15 Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
  16 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
  17 ---
  18  drivers/net/dsa/mt7530.c | 28 ++++++++++------------------
  19  1 file changed, 10 insertions(+), 18 deletions(-)
  20
  21 --- a/drivers/net/dsa/mt7530.c
  22 +++ b/drivers/net/dsa/mt7530.c
  23 @@ -2963,25 +2963,16 @@ static void mt753x_phylink_get_caps(stru
  24         priv->info->mac_port_get_caps(ds, port, config);
  25  }
  26
  27 -static void
  28 -mt753x_phylink_validate(struct dsa_switch *ds, int port,
  29 -                       unsigned long *supported,
  30 -                       struct phylink_link_state *state)
  31 -{
  32 -       __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
  33 -       u32 caps;
  34 -
  35 -       caps = dsa_to_port(ds, port)->pl_config.mac_capabilities;
  36 -
  37 -       phylink_set_port_modes(mask);
  38 -       phylink_get_linkmodes(mask, state->interface, caps);
  39 +static int mt753x_pcs_validate(struct phylink_pcs *pcs,
  40 +                              unsigned long *supported,
  41 +                              const struct phylink_link_state *state)
  42 +{
  43 +       /* Autonegotiation is not supported in TRGMII nor 802.3z modes */
  44 +       if (state->interface == PHY_INTERFACE_MODE_TRGMII ||
  45 +           phy_interface_mode_is_8023z(state->interface))
  46 +               phylink_clear(supported, Autoneg);
  47
  48 -       if (state->interface != PHY_INTERFACE_MODE_TRGMII &&
  49 -           !phy_interface_mode_is_8023z(state->interface))
  50 -               phylink_set(mask, Autoneg);
  51 -
  52 -       linkmode_and(supported, supported, mask);
  53 -       linkmode_and(state->advertising, state->advertising, mask);
  54 +       return 0;
  55  }
  56
  57  static void mt7530_pcs_get_state(struct phylink_pcs *pcs,
  58 @@ -3083,12 +3074,14 @@ static void mt7530_pcs_an_restart(struct
  59  }
  60
  61  static const struct phylink_pcs_ops mt7530_pcs_ops = {
  62 +       .pcs_validate = mt753x_pcs_validate,
  63         .pcs_get_state = mt7530_pcs_get_state,
  64         .pcs_config = mt753x_pcs_config,
  65         .pcs_an_restart = mt7530_pcs_an_restart,
  66  };
  67
  68  static const struct phylink_pcs_ops mt7531_pcs_ops = {
  69 +       .pcs_validate = mt753x_pcs_validate,
  70         .pcs_get_state = mt7531_pcs_get_state,
  71         .pcs_config = mt753x_pcs_config,
  72         .pcs_an_restart = mt7531_pcs_an_restart,
  73 @@ -3180,7 +3173,6 @@ static const struct dsa_switch_ops mt753
  74         .port_mirror_add        = mt753x_port_mirror_add,
  75         .port_mirror_del        = mt753x_port_mirror_del,
  76         .phylink_get_caps       = mt753x_phylink_get_caps,
  77 -       .phylink_validate       = mt753x_phylink_validate,
  78         .phylink_mac_select_pcs = mt753x_phylink_mac_select_pcs,
  79         .phylink_mac_config     = mt753x_phylink_mac_config,
  80         .phylink_mac_link_down  = mt753x_phylink_mac_link_down,