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From 471c40bde606ec0b1ce8c616f7998739c7a783a6 Mon Sep 17 00:00:00 2001
From: Ivan Bornyakov <i.bornyakov@metrotek.ru>
Date: Fri, 10 Feb 2023 18:46:27 +0300
Subject: [PATCH 10/21] net: phylink: support validated pause and autoneg in
fixed-link
In fixed-link setup phylink_parse_fixedlink() unconditionally sets
Pause, Asym_Pause and Autoneg bits to "supported" bitmap, while MAC may
not support these.
This leads to ethtool reporting:
> Supported pause frame use: Symmetric Receive-only
> Supports auto-negotiation: Yes
regardless of what is actually supported.
Instead of unconditionally set Pause, Asym_Pause and Autoneg it is
sensible to set them according to validated "supported" bitmap, i.e. the
result of phylink_validate().
Signed-off-by: Ivan Bornyakov <i.bornyakov@metrotek.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/phy/phylink.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -709,6 +709,7 @@ static int phylink_parse_fixedlink(struc
struct fwnode_handle *fwnode)
{
struct fwnode_handle *fixed_node;
+ bool pause, asym_pause, autoneg;
const struct phy_setting *s;
struct gpio_desc *desc;
u32 speed;
@@ -781,13 +782,23 @@ static int phylink_parse_fixedlink(struc
linkmode_copy(pl->link_config.advertising, pl->supported);
phylink_validate(pl, pl->supported, &pl->link_config);
+ pause = phylink_test(pl->supported, Pause);
+ asym_pause = phylink_test(pl->supported, Asym_Pause);
+ autoneg = phylink_test(pl->supported, Autoneg);
s = phy_lookup_setting(pl->link_config.speed, pl->link_config.duplex,
pl->supported, true);
linkmode_zero(pl->supported);
phylink_set(pl->supported, MII);
- phylink_set(pl->supported, Pause);
- phylink_set(pl->supported, Asym_Pause);
- phylink_set(pl->supported, Autoneg);
+
+ if (pause)
+ phylink_set(pl->supported, Pause);
+
+ if (asym_pause)
+ phylink_set(pl->supported, Asym_Pause);
+
+ if (autoneg)
+ phylink_set(pl->supported, Autoneg);
+
if (s) {
__set_bit(s->bit, pl->supported);
__set_bit(s->bit, pl->link_config.lp_advertising);
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