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| author | David S. Miller <davem@davemloft.net> | 2020-04-15 01:33:26 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-04-15 01:33:26 +0200 |
| commit | 047c7308ea09e69875302bacbba711b5a154b609 (patch) | |
| tree | 6f64bee195b93659e90e5cf2b4e6f8f45473a54c | |
| parent | Merge branch 'ionic-address-automated-build-complaints' (diff) | |
| parent | net: dsa: Down cpu/dsa ports phylink will control (diff) | |
| download | linux-047c7308ea09e69875302bacbba711b5a154b609.tar.xz linux-047c7308ea09e69875302bacbba711b5a154b609.zip | |
Merge branch 'mv88e6xxx-fixed-link-fixes'
Andrew Lunn says:
====================
mv88e6xxx fixed link fixes
Recent changes for how the MAC is configured broke fixed links, as
used by CPU/DSA ports, and for SFPs when phylink cannot be used. The
first fix is unchanged from v1. The second fix takes a different
solution than v1. If a CPU or DSA port is known to have a PHYLINK
instance, configure the port down before instantiating the PHYLINK, so
it is in the down state as expected by PHYLINK.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/dsa/mv88e6xxx/chip.c | 5 | ||||
| -rw-r--r-- | net/dsa/port.c | 7 |
2 files changed, 9 insertions, 3 deletions
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 221593261e8f..dd8a5666a584 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -709,7 +709,8 @@ static void mv88e6xxx_mac_link_down(struct dsa_switch *ds, int port, ops = chip->info->ops; mv88e6xxx_reg_lock(chip); - if (!mv88e6xxx_port_ppu_updates(chip, port) && ops->port_set_link) + if ((!mv88e6xxx_port_ppu_updates(chip, port) || + mode == MLO_AN_FIXED) && ops->port_set_link) err = ops->port_set_link(chip, port, LINK_FORCED_DOWN); mv88e6xxx_reg_unlock(chip); @@ -731,7 +732,7 @@ static void mv88e6xxx_mac_link_up(struct dsa_switch *ds, int port, ops = chip->info->ops; mv88e6xxx_reg_lock(chip); - if (!mv88e6xxx_port_ppu_updates(chip, port)) { + if (!mv88e6xxx_port_ppu_updates(chip, port) || mode == MLO_AN_FIXED) { /* FIXME: for an automedia port, should we force the link * down here - what if the link comes up due to "other" media * while we're bringing the port up, how is the exclusivity diff --git a/net/dsa/port.c b/net/dsa/port.c index 231b2d494f1c..a58fdd362574 100644 --- a/net/dsa/port.c +++ b/net/dsa/port.c @@ -670,11 +670,16 @@ int dsa_port_link_register_of(struct dsa_port *dp) { struct dsa_switch *ds = dp->ds; struct device_node *phy_np; + int port = dp->index; if (!ds->ops->adjust_link) { phy_np = of_parse_phandle(dp->dn, "phy-handle", 0); - if (of_phy_is_fixed_link(dp->dn) || phy_np) + if (of_phy_is_fixed_link(dp->dn) || phy_np) { + if (ds->ops->phylink_mac_link_down) + ds->ops->phylink_mac_link_down(ds, port, + MLO_AN_FIXED, PHY_INTERFACE_MODE_NA); return dsa_port_phylink_register(dp); + } return 0; } |