target/linux/generic/pending-5.4/749-net-phylink-split-phylink_sfp_module_insert.patch

   1 From 36569971241ae6b81376da4937d2c8760122d10b Mon Sep 17 00:00:00 2001
   2 From: Russell King <rmk+kernel@armlinux.org.uk>
   3 Date: Thu, 21 Nov 2019 17:58:58 +0000
   4 Subject: [PATCH 652/660] net: phylink: split phylink_sfp_module_insert()
   5
   6 Split out the configuration step from phylink_sfp_module_insert() so
   7 we can re-use this later.
   8
   9 Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
  10 ---
  11  drivers/net/phy/phylink.c | 47 +++++++++++++++++++++++----------------
  12  1 file changed, 28 insertions(+), 19 deletions(-)
  13
  14 --- a/drivers/net/phy/phylink.c
  15 +++ b/drivers/net/phy/phylink.c
  16 @@ -1688,25 +1688,21 @@ static void phylink_sfp_detach(void *ups
  17         pl->netdev->sfp_bus = NULL;
  18  }
  19
  20 -static int phylink_sfp_module_insert(void *upstream,
  21 -                                    const struct sfp_eeprom_id *id)
  22 +static int phylink_sfp_config(struct phylink *pl, u8 mode, u8 port,
  23 +                             const unsigned long *supported,
  24 +                             const unsigned long *advertising)
  25  {
  26 -       struct phylink *pl = upstream;
  27 -       __ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, };
  28         __ETHTOOL_DECLARE_LINK_MODE_MASK(support1);
  29 +       __ETHTOOL_DECLARE_LINK_MODE_MASK(support);
  30         struct phylink_link_state config;
  31         phy_interface_t iface;
  32 -       int ret = 0;
  33         bool changed;
  34 -       u8 port;
  35 +       int ret;
  36
  37 -       ASSERT_RTNL();
  38 -
  39 -       sfp_parse_support(pl->sfp_bus, id, support);
  40 -       port = sfp_parse_port(pl->sfp_bus, id, support);
  41 +       linkmode_copy(support, supported);
  42
  43         memset(&config, 0, sizeof(config));
  44 -       linkmode_copy(config.advertising, support);
  45 +       linkmode_copy(config.advertising, advertising);
  46         config.interface = PHY_INTERFACE_MODE_NA;
  47         config.speed = SPEED_UNKNOWN;
  48         config.duplex = DUPLEX_UNKNOWN;
  49 @@ -1721,8 +1717,6 @@ static int phylink_sfp_module_insert(voi
  50                 return ret;
  51         }
  52
  53 -       linkmode_copy(support1, support);
  54 -
  55         iface = sfp_select_interface(pl->sfp_bus, config.advertising);
  56         if (iface == PHY_INTERFACE_MODE_NA) {
  57                 phylink_err(pl,
  58 @@ -1732,18 +1726,18 @@ static int phylink_sfp_module_insert(voi
  59         }
  60
  61         config.interface = iface;
  62 +       linkmode_copy(support1, support);
  63         ret = phylink_validate(pl, support1, &config);
  64         if (ret) {
  65                 phylink_err(pl, "validation of %s/%s with support %*pb failed: %d\n",
  66 -                           phylink_an_mode_str(MLO_AN_INBAND),
  67 +                           phylink_an_mode_str(mode),
  68                             phy_modes(config.interface),
  69                             __ETHTOOL_LINK_MODE_MASK_NBITS, support, ret);
  70                 return ret;
  71         }
  72
  73         phylink_dbg(pl, "requesting link mode %s/%s with support %*pb\n",
  74 -                   phylink_an_mode_str(MLO_AN_INBAND),
  75 -                   phy_modes(config.interface),
  76 +                   phylink_an_mode_str(mode), phy_modes(config.interface),
  77                     __ETHTOOL_LINK_MODE_MASK_NBITS, support);
  78
  79         if (phy_interface_mode_is_8023z(iface) && pl->phydev)
  80 @@ -1756,15 +1750,15 @@ static int phylink_sfp_module_insert(voi
  81                 linkmode_copy(pl->link_config.advertising, config.advertising);
  82         }
  83
  84 -       if (pl->cur_link_an_mode != MLO_AN_INBAND ||
  85 +       if (pl->cur_link_an_mode != mode ||
  86             pl->link_config.interface != config.interface) {
  87                 pl->link_config.interface = config.interface;
  88 -               pl->cur_link_an_mode = MLO_AN_INBAND;
  89 +               pl->cur_link_an_mode = mode;
  90
  91                 changed = true;
  92
  93                 phylink_info(pl, "switched to %s/%s link mode\n",
  94 -                            phylink_an_mode_str(MLO_AN_INBAND),
  95 +                            phylink_an_mode_str(mode),
  96                              phy_modes(config.interface));
  97         }
  98
  99 @@ -1777,6 +1771,21 @@ static int phylink_sfp_module_insert(voi
 100         return ret;
 101  }
 102
 103 +static int phylink_sfp_module_insert(void *upstream,
 104 +                                    const struct sfp_eeprom_id *id)
 105 +{
 106 +       struct phylink *pl = upstream;
 107 +       __ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, };
 108 +       u8 port;
 109 +
 110 +       ASSERT_RTNL();
 111 +
 112 +       sfp_parse_support(pl->sfp_bus, id, support);
 113 +       port = sfp_parse_port(pl->sfp_bus, id, support);
 114 +
 115 +       return phylink_sfp_config(pl, MLO_AN_INBAND, port, support, support);
 116 +}
 117 +
 118  static int phylink_sfp_module_start(void *upstream)
 119  {
 120         struct phylink *pl = upstream;