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generic: backport phylink patches for PCS/PHY caps OPs

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Backport phylink patches for PCS/PHY caps OPs. This makes it easier to
align future generic PCS patch and permit supporting special PHY that
needs specific tune if "in-band" mode is enabled (for example Aeonsemi
PHYs)

This is also mainly using the upstream version of the Mediatek patch
739-net-add-negotiation-of-in-band-capabilities.

All affected patch automatically refreshed.

Link: https://github.com/openwrt/openwrt/pull/20461
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
This commit is contained in:
Christian Marangi
2025-10-20 01:36:34 +02:00
parent 0636e89e10
commit 813ecda1f3
74 changed files with 4103 additions and 1304 deletions
Download Patch File Download Diff File Expand all files Collapse all files

41
target/linux/generic/backport-6.12/600-01-v6.13-net-phylink-move-manual-flow-control-setting.patch Normal file
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From 8cc5f4cb94c0b1c7c1ba8013c14fd02ffb1a25f3 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Fri, 8 Nov 2024 16:01:44 +0000
Subject: [PATCH 1/5] net: phylink: move manual flow control setting
Move the handling of manual flow control configuration to a common
location during resolve. We currently evaluate this for all but
fixed links.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1t9RQe-002Feh-T1@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1484,7 +1484,6 @@ static void phylink_resolve(struct work_
switch (pl->cur_link_an_mode) {
case MLO_AN_PHY:
link_state = pl->phy_state;
- phylink_apply_manual_flow(pl, &link_state);
mac_config = link_state.link;
break;
@@ -1545,11 +1544,13 @@ static void phylink_resolve(struct work_
link_state.pause = pl->phy_state.pause;
mac_config = true;
}
- phylink_apply_manual_flow(pl, &link_state);
break;
}
}
+ if (pl->cur_link_an_mode != MLO_AN_FIXED)
+ phylink_apply_manual_flow(pl, &link_state);
+
if (mac_config) {
if (link_state.interface != pl->link_config.interface) {
/* The interface has changed, force the link down and

42
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From 92abfcb4ced482afbe65d18980e6734fe1e62a34 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Fri, 8 Nov 2024 16:01:50 +0000
Subject: [PATCH 2/5] net: phylink: move MLO_AN_FIXED resolve handling to if()
statement
The switch() statement doesn't sit very well with the preceeding if()
statements, and results in excessive indentation that spoils code
readability. Begin cleaning this up by converting the MLO_AN_FIXED case
to an if() statement.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1t9RQk-002Fen-1A@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1480,6 +1480,9 @@ static void phylink_resolve(struct work_
} else if (pl->link_failed) {
link_state.link = false;
retrigger = true;
+ } else if (pl->cur_link_an_mode == MLO_AN_FIXED) {
+ phylink_get_fixed_state(pl, &link_state);
+ mac_config = link_state.link;
} else {
switch (pl->cur_link_an_mode) {
case MLO_AN_PHY:
@@ -1487,11 +1490,6 @@ static void phylink_resolve(struct work_
mac_config = link_state.link;
break;
- case MLO_AN_FIXED:
- phylink_get_fixed_state(pl, &link_state);
- mac_config = link_state.link;
- break;
-
case MLO_AN_INBAND:
phylink_mac_pcs_get_state(pl, &link_state);

37
target/linux/generic/backport-6.12/600-03-v6.13-net-phylink-move-MLO_AN_PHY-resolve-handling-to-if-s.patch Normal file
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From f0f46c2a3d8ea9d1427298c8103a777d9e616c29 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Fri, 8 Nov 2024 16:01:55 +0000
Subject: [PATCH 3/5] net: phylink: move MLO_AN_PHY resolve handling to if()
statement
The switch() statement doesn't sit very well with the preceeding if()
statements, and results in excessive indentation that spoils code
readability. Continue cleaning this up by converting the MLO_AN_PHY
case to use an if() statmeent.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1t9RQp-002Fet-5W@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1483,13 +1483,11 @@ static void phylink_resolve(struct work_
} else if (pl->cur_link_an_mode == MLO_AN_FIXED) {
phylink_get_fixed_state(pl, &link_state);
mac_config = link_state.link;
+ } else if (pl->cur_link_an_mode == MLO_AN_PHY) {
+ link_state = pl->phy_state;
+ mac_config = link_state.link;
} else {
switch (pl->cur_link_an_mode) {
- case MLO_AN_PHY:
- link_state = pl->phy_state;
- mac_config = link_state.link;
- break;
-
case MLO_AN_INBAND:
phylink_mac_pcs_get_state(pl, &link_state);

127
target/linux/generic/backport-6.12/600-04-v6.13-net-phylink-remove-switch-statement-in-resolve-handl.patch Normal file
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From d1a16dbbd84e02d2a6dcfcb8d5c4b8b2c0289f00 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Fri, 8 Nov 2024 16:02:00 +0000
Subject: [PATCH 4/5] net: phylink: remove switch() statement in resolve
handling
The switch() statement doesn't sit very well with the preceeding if()
statements, so let's just convert everything to if()s. As a result of
the two preceding commits, there is now only one case in the switch()
statement. Remove the switch statement and reduce the code indentation.
Code reformatting will be in the following commit.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1t9RQu-002Fez-AA@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 94 +++++++++++++++++++--------------------
1 file changed, 45 insertions(+), 49 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1487,60 +1487,56 @@ static void phylink_resolve(struct work_
link_state = pl->phy_state;
mac_config = link_state.link;
} else {
- switch (pl->cur_link_an_mode) {
- case MLO_AN_INBAND:
- phylink_mac_pcs_get_state(pl, &link_state);
-
- /* The PCS may have a latching link-fail indicator.
- * If the link was up, bring the link down and
- * re-trigger the resolve. Otherwise, re-read the
- * PCS state to get the current status of the link.
+ phylink_mac_pcs_get_state(pl, &link_state);
+
+ /* The PCS may have a latching link-fail indicator.
+ * If the link was up, bring the link down and
+ * re-trigger the resolve. Otherwise, re-read the
+ * PCS state to get the current status of the link.
+ */
+ if (!link_state.link) {
+ if (cur_link_state)
+ retrigger = true;
+ else
+ phylink_mac_pcs_get_state(pl,
+ &link_state);
+ }
+
+ /* If we have a phy, the "up" state is the union of
+ * both the PHY and the MAC
+ */
+ if (pl->phydev)
+ link_state.link &= pl->phy_state.link;
+
+ /* Only update if the PHY link is up */
+ if (pl->phydev && pl->phy_state.link) {
+ /* If the interface has changed, force a
+ * link down event if the link isn't already
+ * down, and re-resolve.
*/
- if (!link_state.link) {
- if (cur_link_state)
- retrigger = true;
- else
- phylink_mac_pcs_get_state(pl,
- &link_state);
+ if (link_state.interface !=
+ pl->phy_state.interface) {
+ retrigger = true;
+ link_state.link = false;
}
+ link_state.interface = pl->phy_state.interface;
- /* If we have a phy, the "up" state is the union of
- * both the PHY and the MAC
+ /* If we are doing rate matching, then the
+ * link speed/duplex comes from the PHY
*/
- if (pl->phydev)
- link_state.link &= pl->phy_state.link;
-
- /* Only update if the PHY link is up */
- if (pl->phydev && pl->phy_state.link) {
- /* If the interface has changed, force a
- * link down event if the link isn't already
- * down, and re-resolve.
- */
- if (link_state.interface !=
- pl->phy_state.interface) {
- retrigger = true;
- link_state.link = false;
- }
- link_state.interface = pl->phy_state.interface;
-
- /* If we are doing rate matching, then the
- * link speed/duplex comes from the PHY
- */
- if (pl->phy_state.rate_matching) {
- link_state.rate_matching =
- pl->phy_state.rate_matching;
- link_state.speed = pl->phy_state.speed;
- link_state.duplex =
- pl->phy_state.duplex;
- }
-
- /* If we have a PHY, we need to update with
- * the PHY flow control bits.
- */
- link_state.pause = pl->phy_state.pause;
- mac_config = true;
+ if (pl->phy_state.rate_matching) {
+ link_state.rate_matching =
+ pl->phy_state.rate_matching;
+ link_state.speed = pl->phy_state.speed;
+ link_state.duplex =
+ pl->phy_state.duplex;
}
- break;
+
+ /* If we have a PHY, we need to update with
+ * the PHY flow control bits.
+ */
+ link_state.pause = pl->phy_state.pause;
+ mac_config = true;
}
}

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target/linux/generic/backport-6.12/600-05-v6.13-net-phylink-clean-up-phylink_resolve.patch Normal file
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@ -0,0 +1,85 @@
From bc08ce37d99a3992e975a0f397503cb23404f25a Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Fri, 8 Nov 2024 16:02:05 +0000
Subject: [PATCH 5/5] net: phylink: clean up phylink_resolve()
Now that we have reduced the indentation level, clean up the code
formatting.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1t9RQz-002Ff5-EA@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 35 ++++++++++++++++-------------------
1 file changed, 16 insertions(+), 19 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1489,51 +1489,48 @@ static void phylink_resolve(struct work_
} else {
phylink_mac_pcs_get_state(pl, &link_state);
- /* The PCS may have a latching link-fail indicator.
- * If the link was up, bring the link down and
- * re-trigger the resolve. Otherwise, re-read the
- * PCS state to get the current status of the link.
+ /* The PCS may have a latching link-fail indicator. If the link
+ * was up, bring the link down and re-trigger the resolve.
+ * Otherwise, re-read the PCS state to get the current status
+ * of the link.
*/
if (!link_state.link) {
if (cur_link_state)
retrigger = true;
else
- phylink_mac_pcs_get_state(pl,
- &link_state);
+ phylink_mac_pcs_get_state(pl, &link_state);
}
- /* If we have a phy, the "up" state is the union of
- * both the PHY and the MAC
+ /* If we have a phy, the "up" state is the union of both the
+ * PHY and the MAC
*/
if (pl->phydev)
link_state.link &= pl->phy_state.link;
/* Only update if the PHY link is up */
if (pl->phydev && pl->phy_state.link) {
- /* If the interface has changed, force a
- * link down event if the link isn't already
- * down, and re-resolve.
+ /* If the interface has changed, force a link down
+ * event if the link isn't already down, and re-resolve.
*/
- if (link_state.interface !=
- pl->phy_state.interface) {
+ if (link_state.interface != pl->phy_state.interface) {
retrigger = true;
link_state.link = false;
}
+
link_state.interface = pl->phy_state.interface;
- /* If we are doing rate matching, then the
- * link speed/duplex comes from the PHY
+ /* If we are doing rate matching, then the link
+ * speed/duplex comes from the PHY
*/
if (pl->phy_state.rate_matching) {
link_state.rate_matching =
pl->phy_state.rate_matching;
link_state.speed = pl->phy_state.speed;
- link_state.duplex =
- pl->phy_state.duplex;
+ link_state.duplex = pl->phy_state.duplex;
}
- /* If we have a PHY, we need to update with
- * the PHY flow control bits.
+ /* If we have a PHY, we need to update with the PHY
+ * flow control bits.
*/
link_state.pause = pl->phy_state.pause;
mac_config = true;

95
target/linux/generic/backport-6.12/601-01-v6.14-net-phylink-pass-phylink-and-pcs-into-phylink_pcs_ne.patch Normal file
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From 17ed1911f9c8d4f9af8e13b2c95103ee06dadc0f Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:30:47 +0000
Subject: [PATCH 01/13] net: phylink: pass phylink and pcs into
phylink_pcs_neg_mode()
Move the call to phylink_pcs_neg_mode() in phylink_major_config() after
we have selected the appropriate PCS to allow the PCS to be passed in.
Add struct phylink and struct phylink_pcs pointers to
phylink_pcs_neg_mode() and pass in the appropriate structures. Set
pl->pcs_neg_mode before returning, and remove the return value.
This will allow the capabilities of the PCS and any PHY to be used when
deciding which pcs_neg_mode should be used.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUrP-006ITh-6u@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 26 +++++++++++++-------------
1 file changed, 13 insertions(+), 13 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1102,7 +1102,8 @@ static void phylink_pcs_an_restart(struc
/**
* phylink_pcs_neg_mode() - helper to determine PCS inband mode
- * @mode: one of %MLO_AN_FIXED, %MLO_AN_PHY, %MLO_AN_INBAND.
+ * @pl: a pointer to a &struct phylink returned from phylink_create()
+ * @pcs: a pointer to &struct phylink_pcs
* @interface: interface mode to be used
* @advertising: adertisement ethtool link mode mask
*
@@ -1119,11 +1120,13 @@ static void phylink_pcs_an_restart(struc
* Note: this is for cases where the PCS itself is involved in negotiation
* (e.g. Clause 37, SGMII and similar) not Clause 73.
*/
-static unsigned int phylink_pcs_neg_mode(unsigned int mode,
- phy_interface_t interface,
- const unsigned long *advertising)
+static void phylink_pcs_neg_mode(struct phylink *pl, struct phylink_pcs *pcs,
+ phy_interface_t interface,
+ const unsigned long *advertising)
{
- unsigned int neg_mode;
+ unsigned int neg_mode, mode;
+
+ mode = pl->cur_link_an_mode;
switch (interface) {
case PHY_INTERFACE_MODE_SGMII:
@@ -1164,7 +1167,7 @@ static unsigned int phylink_pcs_neg_mode
break;
}
- return neg_mode;
+ pl->pcs_neg_mode = neg_mode;
}
static void phylink_major_config(struct phylink *pl, bool restart,
@@ -1178,10 +1181,6 @@ static void phylink_major_config(struct
phylink_dbg(pl, "major config %s\n", phy_modes(state->interface));
- pl->pcs_neg_mode = phylink_pcs_neg_mode(pl->cur_link_an_mode,
- state->interface,
- state->advertising);
-
if (pl->using_mac_select_pcs) {
pcs = pl->mac_ops->mac_select_pcs(pl->config, state->interface);
if (IS_ERR(pcs)) {
@@ -1194,6 +1193,8 @@ static void phylink_major_config(struct
pcs_changed = pcs && pl->pcs != pcs;
}
+ phylink_pcs_neg_mode(pl, pcs, state->interface, state->advertising);
+
phylink_pcs_poll_stop(pl);
if (pl->mac_ops->mac_prepare) {
@@ -1284,9 +1285,8 @@ static int phylink_change_inband_advert(
pl->link_config.pause);
/* Recompute the PCS neg mode */
- pl->pcs_neg_mode = phylink_pcs_neg_mode(pl->cur_link_an_mode,
- pl->link_config.interface,
- pl->link_config.advertising);
+ phylink_pcs_neg_mode(pl, pl->pcs, pl->link_config.interface,
+ pl->link_config.advertising);
neg_mode = pl->cur_link_an_mode;
if (pl->pcs->neg_mode)

290
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From 1f92ead7e15003f632b5f138e8138095e0997d3d Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:30:52 +0000
Subject: [PATCH 02/13] net: phylink: split cur_link_an_mode into requested and
active
There is an interdependence between the current link_an_mode and
pcs_neg_mode that some drivers rely upon to know whether inband or PHY
mode will be used.
In order to support detection of PCS and PHY inband capabilities
resulting in automatic selection of inband or PHY mode, we need to
cater for this, and support changing the MAC link_an_mode. However, we
end up with an inter-dependency between the current link_an_mode and
pcs_neg_mode.
To solve this, split the current link_an_mode into the requested
link_an_mode and active link_an_mode. The requested link_an_mode will
always be passed to phylink_pcs_neg_mode(), and the active link_an_mode
will be used for everything else, and only updated during
phylink_major_config(). This will ensure that phylink_pcs_neg_mode()'s
link_an_mode will not depend on the active link_an_mode that will,
in a future patch, depend on pcs_neg_mode.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUrU-006ITn-Ai@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 60 ++++++++++++++++++++-------------------
1 file changed, 31 insertions(+), 29 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -56,7 +56,8 @@ struct phylink {
struct phy_device *phydev;
phy_interface_t link_interface; /* PHY_INTERFACE_xxx */
u8 cfg_link_an_mode; /* MLO_AN_xxx */
- u8 cur_link_an_mode;
+ u8 req_link_an_mode; /* Requested MLO_AN_xxx mode */
+ u8 act_link_an_mode; /* Active MLO_AN_xxx mode */
u8 link_port; /* The current non-phy ethtool port */
__ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
@@ -1082,13 +1083,13 @@ static void phylink_mac_config(struct ph
phylink_dbg(pl,
"%s: mode=%s/%s/%s adv=%*pb pause=%02x\n",
- __func__, phylink_an_mode_str(pl->cur_link_an_mode),
+ __func__, phylink_an_mode_str(pl->act_link_an_mode),
phy_modes(st.interface),
phy_rate_matching_to_str(st.rate_matching),
__ETHTOOL_LINK_MODE_MASK_NBITS, st.advertising,
st.pause);
- pl->mac_ops->mac_config(pl->config, pl->cur_link_an_mode, &st);
+ pl->mac_ops->mac_config(pl->config, pl->act_link_an_mode, &st);
}
static void phylink_pcs_an_restart(struct phylink *pl)
@@ -1096,7 +1097,7 @@ static void phylink_pcs_an_restart(struc
if (pl->pcs && linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
pl->link_config.advertising) &&
phy_interface_mode_is_8023z(pl->link_config.interface) &&
- phylink_autoneg_inband(pl->cur_link_an_mode))
+ phylink_autoneg_inband(pl->act_link_an_mode))
pl->pcs->ops->pcs_an_restart(pl->pcs);
}
@@ -1126,7 +1127,7 @@ static void phylink_pcs_neg_mode(struct
{
unsigned int neg_mode, mode;
- mode = pl->cur_link_an_mode;
+ mode = pl->req_link_an_mode;
switch (interface) {
case PHY_INTERFACE_MODE_SGMII:
@@ -1168,6 +1169,7 @@ static void phylink_pcs_neg_mode(struct
}
pl->pcs_neg_mode = neg_mode;
+ pl->act_link_an_mode = mode;
}
static void phylink_major_config(struct phylink *pl, bool restart,
@@ -1198,7 +1200,7 @@ static void phylink_major_config(struct
phylink_pcs_poll_stop(pl);
if (pl->mac_ops->mac_prepare) {
- err = pl->mac_ops->mac_prepare(pl->config, pl->cur_link_an_mode,
+ err = pl->mac_ops->mac_prepare(pl->config, pl->act_link_an_mode,
state->interface);
if (err < 0) {
phylink_err(pl, "mac_prepare failed: %pe\n",
@@ -1232,7 +1234,7 @@ static void phylink_major_config(struct
if (pl->pcs_state == PCS_STATE_STARTING || pcs_changed)
phylink_pcs_enable(pl->pcs);
- neg_mode = pl->cur_link_an_mode;
+ neg_mode = pl->act_link_an_mode;
if (pl->pcs && pl->pcs->neg_mode)
neg_mode = pl->pcs_neg_mode;
@@ -1248,7 +1250,7 @@ static void phylink_major_config(struct
phylink_pcs_an_restart(pl);
if (pl->mac_ops->mac_finish) {
- err = pl->mac_ops->mac_finish(pl->config, pl->cur_link_an_mode,
+ err = pl->mac_ops->mac_finish(pl->config, pl->act_link_an_mode,
state->interface);
if (err < 0)
phylink_err(pl, "mac_finish failed: %pe\n",
@@ -1279,7 +1281,7 @@ static int phylink_change_inband_advert(
return 0;
phylink_dbg(pl, "%s: mode=%s/%s adv=%*pb pause=%02x\n", __func__,
- phylink_an_mode_str(pl->cur_link_an_mode),
+ phylink_an_mode_str(pl->req_link_an_mode),
phy_modes(pl->link_config.interface),
__ETHTOOL_LINK_MODE_MASK_NBITS, pl->link_config.advertising,
pl->link_config.pause);
@@ -1288,7 +1290,7 @@ static int phylink_change_inband_advert(
phylink_pcs_neg_mode(pl, pl->pcs, pl->link_config.interface,
pl->link_config.advertising);
- neg_mode = pl->cur_link_an_mode;
+ neg_mode = pl->act_link_an_mode;
if (pl->pcs->neg_mode)
neg_mode = pl->pcs_neg_mode;
@@ -1353,7 +1355,7 @@ static void phylink_mac_initial_config(s
{
struct phylink_link_state link_state;
- switch (pl->cur_link_an_mode) {
+ switch (pl->req_link_an_mode) {
case MLO_AN_PHY:
link_state = pl->phy_state;
break;
@@ -1427,14 +1429,14 @@ static void phylink_link_up(struct phyli
pl->cur_interface = link_state.interface;
- neg_mode = pl->cur_link_an_mode;
+ neg_mode = pl->act_link_an_mode;
if (pl->pcs && pl->pcs->neg_mode)
neg_mode = pl->pcs_neg_mode;
phylink_pcs_link_up(pl->pcs, neg_mode, pl->cur_interface, speed,
duplex);
- pl->mac_ops->mac_link_up(pl->config, pl->phydev, pl->cur_link_an_mode,
+ pl->mac_ops->mac_link_up(pl->config, pl->phydev, pl->act_link_an_mode,
pl->cur_interface, speed, duplex,
!!(link_state.pause & MLO_PAUSE_TX), rx_pause);
@@ -1454,7 +1456,7 @@ static void phylink_link_down(struct phy
if (ndev)
netif_carrier_off(ndev);
- pl->mac_ops->mac_link_down(pl->config, pl->cur_link_an_mode,
+ pl->mac_ops->mac_link_down(pl->config, pl->act_link_an_mode,
pl->cur_interface);
phylink_info(pl, "Link is Down\n");
}
@@ -1480,10 +1482,10 @@ static void phylink_resolve(struct work_
} else if (pl->link_failed) {
link_state.link = false;
retrigger = true;
- } else if (pl->cur_link_an_mode == MLO_AN_FIXED) {
+ } else if (pl->act_link_an_mode == MLO_AN_FIXED) {
phylink_get_fixed_state(pl, &link_state);
mac_config = link_state.link;
- } else if (pl->cur_link_an_mode == MLO_AN_PHY) {
+ } else if (pl->act_link_an_mode == MLO_AN_PHY) {
link_state = pl->phy_state;
mac_config = link_state.link;
} else {
@@ -1537,7 +1539,7 @@ static void phylink_resolve(struct work_
}
}
- if (pl->cur_link_an_mode != MLO_AN_FIXED)
+ if (pl->act_link_an_mode != MLO_AN_FIXED)
phylink_apply_manual_flow(pl, &link_state);
if (mac_config) {
@@ -1661,7 +1663,7 @@ int phylink_set_fixed_link(struct phylin
pl->link_config.an_complete = 1;
pl->cfg_link_an_mode = MLO_AN_FIXED;
- pl->cur_link_an_mode = pl->cfg_link_an_mode;
+ pl->req_link_an_mode = pl->cfg_link_an_mode;
return 0;
}
@@ -1756,7 +1758,7 @@ struct phylink *phylink_create(struct ph
}
}
- pl->cur_link_an_mode = pl->cfg_link_an_mode;
+ pl->req_link_an_mode = pl->cfg_link_an_mode;
ret = phylink_register_sfp(pl, fwnode);
if (ret < 0) {
@@ -2213,7 +2215,7 @@ void phylink_start(struct phylink *pl)
ASSERT_RTNL();
phylink_info(pl, "configuring for %s/%s link mode\n",
- phylink_an_mode_str(pl->cur_link_an_mode),
+ phylink_an_mode_str(pl->req_link_an_mode),
phy_modes(pl->link_config.interface));
/* Always set the carrier off */
@@ -2472,7 +2474,7 @@ int phylink_ethtool_ksettings_get(struct
linkmode_copy(kset->link_modes.supported, pl->supported);
- switch (pl->cur_link_an_mode) {
+ switch (pl->act_link_an_mode) {
case MLO_AN_FIXED:
/* We are using fixed settings. Report these as the
* current link settings - and note that these also
@@ -2564,7 +2566,7 @@ int phylink_ethtool_ksettings_set(struct
/* If we have a fixed link, refuse to change link parameters.
* If the link parameters match, accept them but do nothing.
*/
- if (pl->cur_link_an_mode == MLO_AN_FIXED) {
+ if (pl->req_link_an_mode == MLO_AN_FIXED) {
if (s->speed != pl->link_config.speed ||
s->duplex != pl->link_config.duplex)
return -EINVAL;
@@ -2580,7 +2582,7 @@ int phylink_ethtool_ksettings_set(struct
* is our default case) but do not allow the advertisement to
* be changed. If the advertisement matches, simply return.
*/
- if (pl->cur_link_an_mode == MLO_AN_FIXED) {
+ if (pl->req_link_an_mode == MLO_AN_FIXED) {
if (!linkmode_equal(config.advertising,
pl->link_config.advertising))
return -EINVAL;
@@ -2620,7 +2622,7 @@ int phylink_ethtool_ksettings_set(struct
linkmode_copy(support, pl->supported);
if (phylink_validate(pl, support, &config)) {
phylink_err(pl, "validation of %s/%s with support %*pb failed\n",
- phylink_an_mode_str(pl->cur_link_an_mode),
+ phylink_an_mode_str(pl->req_link_an_mode),
phy_modes(config.interface),
__ETHTOOL_LINK_MODE_MASK_NBITS, support);
return -EINVAL;
@@ -2720,7 +2722,7 @@ int phylink_ethtool_set_pauseparam(struc
ASSERT_RTNL();
- if (pl->cur_link_an_mode == MLO_AN_FIXED)
+ if (pl->req_link_an_mode == MLO_AN_FIXED)
return -EOPNOTSUPP;
if (!phylink_test(pl->supported, Pause) &&
@@ -2984,7 +2986,7 @@ static int phylink_mii_read(struct phyli
struct phylink_link_state state;
int val = 0xffff;
- switch (pl->cur_link_an_mode) {
+ switch (pl->act_link_an_mode) {
case MLO_AN_FIXED:
if (phy_id == 0) {
phylink_get_fixed_state(pl, &state);
@@ -3009,7 +3011,7 @@ static int phylink_mii_read(struct phyli
static int phylink_mii_write(struct phylink *pl, unsigned int phy_id,
unsigned int reg, unsigned int val)
{
- switch (pl->cur_link_an_mode) {
+ switch (pl->act_link_an_mode) {
case MLO_AN_FIXED:
break;
@@ -3199,9 +3201,9 @@ static void phylink_sfp_set_config(struc
changed = true;
}
- if (pl->cur_link_an_mode != mode ||
+ if (pl->req_link_an_mode != mode ||
pl->link_config.interface != state->interface) {
- pl->cur_link_an_mode = mode;
+ pl->req_link_an_mode = mode;
pl->link_config.interface = state->interface;
changed = true;

66
target/linux/generic/backport-6.12/601-03-v6.14-net-phylink-add-debug-for-phylink_major_config.patch Normal file
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@ -0,0 +1,66 @@
From 4e7d000286fe8e12f2d88032711ffab3ab658b12 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:30:57 +0000
Subject: [PATCH 03/13] net: phylink: add debug for phylink_major_config()
Now that we have a more complexity in phylink_major_config(), augment
the debugging so we can see what's going on there.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUrZ-006ITt-Fa@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 27 ++++++++++++++++++++++++++-
1 file changed, 26 insertions(+), 1 deletion(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -176,6 +176,24 @@ static const char *phylink_an_mode_str(u
return mode < ARRAY_SIZE(modestr) ? modestr[mode] : "unknown";
}
+static const char *phylink_pcs_mode_str(unsigned int mode)
+{
+ if (!mode)
+ return "none";
+
+ if (mode & PHYLINK_PCS_NEG_OUTBAND)
+ return "outband";
+
+ if (mode & PHYLINK_PCS_NEG_INBAND) {
+ if (mode & PHYLINK_PCS_NEG_ENABLED)
+ return "inband,an-enabled";
+ else
+ return "inband,an-disabled";
+ }
+
+ return "unknown";
+}
+
static unsigned int phylink_interface_signal_rate(phy_interface_t interface)
{
switch (interface) {
@@ -1181,7 +1199,9 @@ static void phylink_major_config(struct
unsigned int neg_mode;
int err;
- phylink_dbg(pl, "major config %s\n", phy_modes(state->interface));
+ phylink_dbg(pl, "major config, requested %s/%s\n",
+ phylink_an_mode_str(pl->req_link_an_mode),
+ phy_modes(state->interface));
if (pl->using_mac_select_pcs) {
pcs = pl->mac_ops->mac_select_pcs(pl->config, state->interface);
@@ -1197,6 +1217,11 @@ static void phylink_major_config(struct
phylink_pcs_neg_mode(pl, pcs, state->interface, state->advertising);
+ phylink_dbg(pl, "major config, active %s/%s/%s\n",
+ phylink_an_mode_str(pl->act_link_an_mode),
+ phylink_pcs_mode_str(pl->pcs_neg_mode),
+ phy_modes(state->interface));
+
phylink_pcs_poll_stop(pl);
if (pl->mac_ops->mac_prepare) {

118
target/linux/generic/backport-6.12/601-04-v6.14-net-phy-add-phy_inband_caps.patch Normal file
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@ -0,0 +1,118 @@
From b4c7698dd95f253c6958d8c6ac219098009bf28a Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:02 +0000
Subject: [PATCH 04/13] net: phy: add phy_inband_caps()
Add a method to query the PHY's in-band capabilities for a PHY
interface mode.
Where the interface mode does not have in-band capability, or the PHY
driver has not been updated to return this information, then
phy_inband_caps() should return zero. Otherwise, PHY drivers will
return a value consisting of the following flags:
LINK_INBAND_DISABLE indicates that the hardware does not support
in-band signalling, or can have in-band signalling configured via
software to be disabled.
LINK_INBAND_ENABLE indicates that the hardware will use in-band
signalling, or can have in-band signalling configured via software
to be enabled.
LINK_INBAND_BYPASS indicates that the hardware has the ability to
bypass in-band signalling when enabled after a timeout if the link
partner does not respond to its in-band signalling.
This reports the PHY capabilities for the particular interface mode,
not the current configuration.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUre-006ITz-KF@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phy.c | 21 +++++++++++++++++++++
include/linux/phy.h | 28 ++++++++++++++++++++++++++++
2 files changed, 49 insertions(+)
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -1049,6 +1049,27 @@ static int phy_check_link_status(struct
}
/**
+ * phy_inband_caps - query which in-band signalling modes are supported
+ * @phydev: a pointer to a &struct phy_device
+ * @interface: the interface mode for the PHY
+ *
+ * Returns zero if it is unknown what in-band signalling is supported by the
+ * PHY (e.g. because the PHY driver doesn't implement the method.) Otherwise,
+ * returns a bit mask of the LINK_INBAND_* values from
+ * &enum link_inband_signalling to describe which inband modes are supported
+ * by the PHY for this interface mode.
+ */
+unsigned int phy_inband_caps(struct phy_device *phydev,
+ phy_interface_t interface)
+{
+ if (phydev->drv && phydev->drv->inband_caps)
+ return phydev->drv->inband_caps(phydev, interface);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(phy_inband_caps);
+
+/**
* _phy_start_aneg - start auto-negotiation for this PHY device
* @phydev: the phy_device struct
*
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -816,6 +816,24 @@ struct phy_tdr_config {
#define PHY_PAIR_ALL -1
/**
+ * enum link_inband_signalling - in-band signalling modes that are supported
+ *
+ * @LINK_INBAND_DISABLE: in-band signalling can be disabled
+ * @LINK_INBAND_ENABLE: in-band signalling can be enabled without bypass
+ * @LINK_INBAND_BYPASS: in-band signalling can be enabled with bypass
+ *
+ * The possible and required bits can only be used if the valid bit is set.
+ * If possible is clear, that means inband signalling can not be used.
+ * Required is only valid when possible is set, and means that inband
+ * signalling must be used.
+ */
+enum link_inband_signalling {
+ LINK_INBAND_DISABLE = BIT(0),
+ LINK_INBAND_ENABLE = BIT(1),
+ LINK_INBAND_BYPASS = BIT(2),
+};
+
+/**
* struct phy_plca_cfg - Configuration of the PLCA (Physical Layer Collision
* Avoidance) Reconciliation Sublayer.
*
@@ -954,6 +972,14 @@ struct phy_driver {
int (*get_features)(struct phy_device *phydev);
/**
+ * @inband_caps: query whether in-band is supported for the given PHY
+ * interface mode. Returns a bitmask of bits defined by enum
+ * link_inband_signalling.
+ */
+ unsigned int (*inband_caps)(struct phy_device *phydev,
+ phy_interface_t interface);
+
+ /**
* @get_rate_matching: Get the supported type of rate matching for a
* particular phy interface. This is used by phy consumers to determine
* whether to advertise lower-speed modes for that interface. It is
@@ -1832,6 +1858,8 @@ int phy_config_aneg(struct phy_device *p
int _phy_start_aneg(struct phy_device *phydev);
int phy_start_aneg(struct phy_device *phydev);
int phy_aneg_done(struct phy_device *phydev);
+unsigned int phy_inband_caps(struct phy_device *phydev,
+ phy_interface_t interface);
int phy_speed_down(struct phy_device *phydev, bool sync);
int phy_speed_up(struct phy_device *phydev);
bool phy_check_valid(int speed, int duplex, unsigned long *features);

41
target/linux/generic/backport-6.12/601-05-v6.14-net-phy-bcm84881-implement-phy_inband_caps-method.patch Normal file
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@ -0,0 +1,41 @@
From c64c7fa0a774d9da72071a8517e359992baac982 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:07 +0000
Subject: [PATCH 05/13] net: phy: bcm84881: implement phy_inband_caps() method
BCM84881 has no support for inband signalling, so this is a trivial
implementation that returns no support for inband.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/E1tIUrj-006IU6-ON@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/bcm84881.c | 10 ++++++++++
1 file changed, 10 insertions(+)
--- a/drivers/net/phy/bcm84881.c
+++ b/drivers/net/phy/bcm84881.c
@@ -235,11 +235,21 @@ static int bcm84881_read_status(struct p
return genphy_c45_read_mdix(phydev);
}
+/* The Broadcom BCM84881 in the Methode DM7052 is unable to provide a SGMII
+ * or 802.3z control word, so inband will not work.
+ */
+static unsigned int bcm84881_inband_caps(struct phy_device *phydev,
+ phy_interface_t interface)
+{
+ return LINK_INBAND_DISABLE;
+}
+
static struct phy_driver bcm84881_drivers[] = {
{
.phy_id = 0xae025150,
.phy_id_mask = 0xfffffff0,
.name = "Broadcom BCM84881",
+ .inband_caps = bcm84881_inband_caps,
.config_init = bcm84881_config_init,
.probe = bcm84881_probe,
.get_features = bcm84881_get_features,

63
target/linux/generic/backport-6.12/601-06-v6.14-net-phy-marvell-implement-phy_inband_caps-method.patch Normal file
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@ -0,0 +1,63 @@
From 1c86828dff88e28b8ade6bddeee0163a023faf91 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:12 +0000
Subject: [PATCH 06/13] net: phy: marvell: implement phy_inband_caps() method
Provide an implementation for phy_inband_caps() for Marvell PHYs used
on SFP modules, so that phylink knows the PHYs capabilities.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUro-006IUC-Rq@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/marvell.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -716,6 +716,20 @@ static int marvell_config_aneg_fiber(str
return genphy_check_and_restart_aneg(phydev, changed);
}
+static unsigned int m88e1111_inband_caps(struct phy_device *phydev,
+ phy_interface_t interface)
+{
+ /* In 1000base-X and SGMII modes, the inband mode can be changed
+ * through the Fibre page BMCR ANENABLE bit.
+ */
+ if (interface == PHY_INTERFACE_MODE_1000BASEX ||
+ interface == PHY_INTERFACE_MODE_SGMII)
+ return LINK_INBAND_DISABLE | LINK_INBAND_ENABLE |
+ LINK_INBAND_BYPASS;
+
+ return 0;
+}
+
static int m88e1111_config_aneg(struct phy_device *phydev)
{
int extsr = phy_read(phydev, MII_M1111_PHY_EXT_SR);
@@ -3667,6 +3681,7 @@ static struct phy_driver marvell_drivers
.name = "Marvell 88E1112",
/* PHY_GBIT_FEATURES */
.probe = marvell_probe,
+ .inband_caps = m88e1111_inband_caps,
.config_init = m88e1112_config_init,
.config_aneg = marvell_config_aneg,
.config_intr = marvell_config_intr,
@@ -3688,6 +3703,7 @@ static struct phy_driver marvell_drivers
/* PHY_GBIT_FEATURES */
.flags = PHY_POLL_CABLE_TEST,
.probe = marvell_probe,
+ .inband_caps = m88e1111_inband_caps,
.config_init = m88e1111gbe_config_init,
.config_aneg = m88e1111_config_aneg,
.read_status = marvell_read_status,
@@ -3711,6 +3727,7 @@ static struct phy_driver marvell_drivers
.name = "Marvell 88E1111 (Finisar)",
/* PHY_GBIT_FEATURES */
.probe = marvell_probe,
+ .inband_caps = m88e1111_inband_caps,
.config_init = m88e1111gbe_config_init,
.config_aneg = m88e1111_config_aneg,
.read_status = marvell_read_status,

79
target/linux/generic/backport-6.12/601-07-v6.14-net-phy-add-phy_config_inband.patch Normal file
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@ -0,0 +1,79 @@
From 5d58a890c02770ba8d790b1f3c6e8c0e20514dc2 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:18 +0000
Subject: [PATCH 07/13] net: phy: add phy_config_inband()
Add a method to configure the PHY's in-band mode.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUru-006IUI-08@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phy.c | 32 ++++++++++++++++++++++++++++++++
include/linux/phy.h | 6 ++++++
2 files changed, 38 insertions(+)
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -1070,6 +1070,38 @@ unsigned int phy_inband_caps(struct phy_
EXPORT_SYMBOL_GPL(phy_inband_caps);
/**
+ * phy_config_inband - configure the desired PHY in-band mode
+ * @phydev: the phy_device struct
+ * @modes: in-band modes to configure
+ *
+ * Description: disables, enables or enables-with-bypass in-band signalling
+ * between the PHY and host system.
+ *
+ * Returns: zero on success, or negative errno value.
+ */
+int phy_config_inband(struct phy_device *phydev, unsigned int modes)
+{
+ int err;
+
+ if (!!(modes & LINK_INBAND_DISABLE) +
+ !!(modes & LINK_INBAND_ENABLE) +
+ !!(modes & LINK_INBAND_BYPASS) != 1)
+ return -EINVAL;
+
+ mutex_lock(&phydev->lock);
+ if (!phydev->drv)
+ err = -EIO;
+ else if (!phydev->drv->config_inband)
+ err = -EOPNOTSUPP;
+ else
+ err = phydev->drv->config_inband(phydev, modes);
+ mutex_unlock(&phydev->lock);
+
+ return err;
+}
+EXPORT_SYMBOL(phy_config_inband);
+
+/**
* _phy_start_aneg - start auto-negotiation for this PHY device
* @phydev: the phy_device struct
*
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -980,6 +980,11 @@ struct phy_driver {
phy_interface_t interface);
/**
+ * @config_inband: configure in-band mode for the PHY
+ */
+ int (*config_inband)(struct phy_device *phydev, unsigned int modes);
+
+ /**
* @get_rate_matching: Get the supported type of rate matching for a
* particular phy interface. This is used by phy consumers to determine
* whether to advertise lower-speed modes for that interface. It is
@@ -1860,6 +1865,7 @@ int phy_start_aneg(struct phy_device *ph
int phy_aneg_done(struct phy_device *phydev);
unsigned int phy_inband_caps(struct phy_device *phydev,
phy_interface_t interface);
+int phy_config_inband(struct phy_device *phydev, unsigned int modes);
int phy_speed_down(struct phy_device *phydev, bool sync);
int phy_speed_up(struct phy_device *phydev);
bool phy_check_valid(int speed, int duplex, unsigned long *features);

77
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@ -0,0 +1,77 @@
From a219912e0fec73c346e64ef47013cb2e152f88fc Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:23 +0000
Subject: [PATCH 08/13] net: phy: marvell: implement config_inband() method
Implement the config_inband() method for Marvell 88E1112, 88E1111,
and Finisar's 88E1111 variant.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUrz-006IUO-3r@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/marvell.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -730,6 +730,34 @@ static unsigned int m88e1111_inband_caps
return 0;
}
+static int m88e1111_config_inband(struct phy_device *phydev, unsigned int modes)
+{
+ u16 extsr, bmcr;
+ int err;
+
+ if (phydev->interface != PHY_INTERFACE_MODE_1000BASEX &&
+ phydev->interface != PHY_INTERFACE_MODE_SGMII)
+ return -EINVAL;
+
+ if (modes == LINK_INBAND_BYPASS)
+ extsr = MII_M1111_HWCFG_SERIAL_AN_BYPASS;
+ else
+ extsr = 0;
+
+ if (modes == LINK_INBAND_DISABLE)
+ bmcr = 0;
+ else
+ bmcr = BMCR_ANENABLE;
+
+ err = phy_modify(phydev, MII_M1111_PHY_EXT_SR,
+ MII_M1111_HWCFG_SERIAL_AN_BYPASS, extsr);
+ if (err < 0)
+ return extsr;
+
+ return phy_modify_paged(phydev, MII_MARVELL_FIBER_PAGE, MII_BMCR,
+ BMCR_ANENABLE, bmcr);
+}
+
static int m88e1111_config_aneg(struct phy_device *phydev)
{
int extsr = phy_read(phydev, MII_M1111_PHY_EXT_SR);
@@ -3682,6 +3710,7 @@ static struct phy_driver marvell_drivers
/* PHY_GBIT_FEATURES */
.probe = marvell_probe,
.inband_caps = m88e1111_inband_caps,
+ .config_inband = m88e1111_config_inband,
.config_init = m88e1112_config_init,
.config_aneg = marvell_config_aneg,
.config_intr = marvell_config_intr,
@@ -3704,6 +3733,7 @@ static struct phy_driver marvell_drivers
.flags = PHY_POLL_CABLE_TEST,
.probe = marvell_probe,
.inband_caps = m88e1111_inband_caps,
+ .config_inband = m88e1111_config_inband,
.config_init = m88e1111gbe_config_init,
.config_aneg = m88e1111_config_aneg,
.read_status = marvell_read_status,
@@ -3728,6 +3758,7 @@ static struct phy_driver marvell_drivers
/* PHY_GBIT_FEATURES */
.probe = marvell_probe,
.inband_caps = m88e1111_inband_caps,
+ .config_inband = m88e1111_config_inband,
.config_init = m88e1111gbe_config_init,
.config_aneg = m88e1111_config_aneg,
.read_status = marvell_read_status,

159
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@ -0,0 +1,159 @@
From df874f9e52c340cc6f0a0014a97b778f67d46849 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:28 +0000
Subject: [PATCH 09/13] net: phylink: add pcs_inband_caps() method
Add a pcs_inband_caps() method to query the PCS for its inband link
capabilities, and use this to determine whether link modes used with
optical SFPs can be supported.
When a PCS does not provide a method, we allow inband negotiation to
be either on or off, making this a no-op until the pcs_inband_caps()
method is implemented by a PCS driver.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUs4-006IUU-7K@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 60 +++++++++++++++++++++++++++++++++++++++
include/linux/phylink.h | 17 +++++++++++
2 files changed, 77 insertions(+)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1007,6 +1007,15 @@ static void phylink_resolve_an_pause(str
}
}
+static unsigned int phylink_pcs_inband_caps(struct phylink_pcs *pcs,
+ phy_interface_t interface)
+{
+ if (pcs && pcs->ops->pcs_inband_caps)
+ return pcs->ops->pcs_inband_caps(pcs, interface);
+
+ return 0;
+}
+
static void phylink_pcs_pre_config(struct phylink_pcs *pcs,
phy_interface_t interface)
{
@@ -1060,6 +1069,24 @@ static void phylink_pcs_link_up(struct p
pcs->ops->pcs_link_up(pcs, neg_mode, interface, speed, duplex);
}
+/* Query inband for a specific interface mode, asking the MAC for the
+ * PCS which will be used to handle the interface mode.
+ */
+static unsigned int phylink_inband_caps(struct phylink *pl,
+ phy_interface_t interface)
+{
+ struct phylink_pcs *pcs;
+
+ if (!pl->mac_ops->mac_select_pcs)
+ return 0;
+
+ pcs = pl->mac_ops->mac_select_pcs(pl->config, interface);
+ if (!pcs)
+ return 0;
+
+ return phylink_pcs_inband_caps(pcs, interface);
+}
+
static void phylink_pcs_poll_stop(struct phylink *pl)
{
if (pl->cfg_link_an_mode == MLO_AN_INBAND)
@@ -2530,6 +2557,26 @@ int phylink_ethtool_ksettings_get(struct
}
EXPORT_SYMBOL_GPL(phylink_ethtool_ksettings_get);
+static bool phylink_validate_pcs_inband_autoneg(struct phylink *pl,
+ phy_interface_t interface,
+ unsigned long *adv)
+{
+ unsigned int inband = phylink_inband_caps(pl, interface);
+ unsigned int mask;
+
+ /* If the PCS doesn't implement inband support, be permissive. */
+ if (!inband)
+ return true;
+
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, adv))
+ mask = LINK_INBAND_ENABLE;
+ else
+ mask = LINK_INBAND_DISABLE;
+
+ /* Check whether the PCS implements the required mode */
+ return !!(inband & mask);
+}
+
/**
* phylink_ethtool_ksettings_set() - set the link settings
* @pl: a pointer to a &struct phylink returned from phylink_create()
@@ -2665,6 +2712,13 @@ int phylink_ethtool_ksettings_set(struct
phylink_is_empty_linkmode(config.advertising))
return -EINVAL;
+ /* Validate the autonegotiation state. We don't have a PHY in this
+ * situation, so the PCS is the media-facing entity.
+ */
+ if (!phylink_validate_pcs_inband_autoneg(pl, config.interface,
+ config.advertising))
+ return -EINVAL;
+
mutex_lock(&pl->state_mutex);
pl->link_config.speed = config.speed;
pl->link_config.duplex = config.duplex;
@@ -3349,6 +3403,12 @@ static int phylink_sfp_config_optical(st
phylink_dbg(pl, "optical SFP: chosen %s interface\n",
phy_modes(interface));
+ if (!phylink_validate_pcs_inband_autoneg(pl, interface,
+ config.advertising)) {
+ phylink_err(pl, "autoneg setting not compatible with PCS");
+ return -EINVAL;
+ }
+
config.interface = interface;
/* Ignore errors if we're expecting a PHY to attach later */
--- a/include/linux/phylink.h
+++ b/include/linux/phylink.h
@@ -419,6 +419,7 @@ struct phylink_pcs {
/**
* struct phylink_pcs_ops - MAC PCS operations structure.
* @pcs_validate: validate the link configuration.
+ * @pcs_inband_caps: query inband support for interface mode.
* @pcs_enable: enable the PCS.
* @pcs_disable: disable the PCS.
* @pcs_pre_config: pre-mac_config method (for errata)
@@ -434,6 +435,8 @@ struct phylink_pcs {
struct phylink_pcs_ops {
int (*pcs_validate)(struct phylink_pcs *pcs, unsigned long *supported,
const struct phylink_link_state *state);
+ unsigned int (*pcs_inband_caps)(struct phylink_pcs *pcs,
+ phy_interface_t interface);
int (*pcs_enable)(struct phylink_pcs *pcs);
void (*pcs_disable)(struct phylink_pcs *pcs);
void (*pcs_pre_config)(struct phylink_pcs *pcs,
@@ -471,6 +474,20 @@ int pcs_validate(struct phylink_pcs *pcs
const struct phylink_link_state *state);
/**
+ * pcs_inband_caps - query PCS in-band capabilities for interface mode.
+ * @pcs: a pointer to a &struct phylink_pcs.
+ * @interface: interface mode to be queried
+ *
+ * Returns zero if it is unknown what in-band signalling is supported by the
+ * PHY (e.g. because the PHY driver doesn't implement the method.) Otherwise,
+ * returns a bit mask of the LINK_INBAND_* values from
+ * &enum link_inband_signalling to describe which inband modes are supported
+ * for this interface mode.
+ */
+unsigned int pcs_inband_caps(struct phylink_pcs *pcs,
+ phy_interface_t interface);
+
+/**
* pcs_enable() - enable the PCS.
* @pcs: a pointer to a &struct phylink_pcs.
*/

64
target/linux/generic/backport-6.12/601-10-v6.14-net-mvneta-implement-pcs_inband_caps-method.patch Normal file
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@ -0,0 +1,64 @@
From 513e8fb8fa32035b3325e2e14fb9598f8cb545e9 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:33 +0000
Subject: [PATCH 10/13] net: mvneta: implement pcs_inband_caps() method
Report the PCS in-band capabilities to phylink for Marvell NETA
interfaces.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUs9-006IUb-Au@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/ethernet/marvell/mvneta.c | 27 +++++++++++++++++----------
1 file changed, 17 insertions(+), 10 deletions(-)
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -3960,20 +3960,27 @@ static struct mvneta_port *mvneta_pcs_to
return container_of(pcs, struct mvneta_port, phylink_pcs);
}
-static int mvneta_pcs_validate(struct phylink_pcs *pcs,
- unsigned long *supported,
- const struct phylink_link_state *state)
+static unsigned int mvneta_pcs_inband_caps(struct phylink_pcs *pcs,
+ phy_interface_t interface)
{
- /* We only support QSGMII, SGMII, 802.3z and RGMII modes.
- * When in 802.3z mode, we must have AN enabled:
+ /* When operating in an 802.3z mode, we must have AN enabled:
* "Bit 2 Field InBandAnEn In-band Auto-Negotiation enable. ...
* When <PortType> = 1 (1000BASE-X) this field must be set to 1."
+ * Therefore, inband is "required".
*/
- if (phy_interface_mode_is_8023z(state->interface) &&
- !phylink_test(state->advertising, Autoneg))
- return -EINVAL;
+ if (phy_interface_mode_is_8023z(interface))
+ return LINK_INBAND_ENABLE;
- return 0;
+ /* QSGMII, SGMII and RGMII can be configured to use inband
+ * signalling of the AN result. Indicate these as "possible".
+ */
+ if (interface == PHY_INTERFACE_MODE_SGMII ||
+ interface == PHY_INTERFACE_MODE_QSGMII ||
+ phy_interface_mode_is_rgmii(interface))
+ return LINK_INBAND_DISABLE | LINK_INBAND_ENABLE;
+
+ /* For any other modes, indicate that inband is not supported. */
+ return LINK_INBAND_DISABLE;
}
static void mvneta_pcs_get_state(struct phylink_pcs *pcs,
@@ -4071,7 +4078,7 @@ static void mvneta_pcs_an_restart(struct
}
static const struct phylink_pcs_ops mvneta_phylink_pcs_ops = {
- .pcs_validate = mvneta_pcs_validate,
+ .pcs_inband_caps = mvneta_pcs_inband_caps,
.pcs_get_state = mvneta_pcs_get_state,
.pcs_config = mvneta_pcs_config,
.pcs_an_restart = mvneta_pcs_an_restart,

62
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@ -0,0 +1,62 @@
From d4169f0c7665afb8d8adb5e1b1df3db88517d0ad Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:38 +0000
Subject: [PATCH 11/13] net: mvpp2: implement pcs_inband_caps() method
Report the PCS in-band capabilities to phylink for Marvell PP2
interfaces.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUsE-006IUh-E7@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
.../net/ethernet/marvell/mvpp2/mvpp2_main.c | 25 ++++++++++++-------
1 file changed, 16 insertions(+), 9 deletions(-)
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -6237,19 +6237,26 @@ static const struct phylink_pcs_ops mvpp
.pcs_config = mvpp2_xlg_pcs_config,
};
-static int mvpp2_gmac_pcs_validate(struct phylink_pcs *pcs,
- unsigned long *supported,
- const struct phylink_link_state *state)
+static unsigned int mvpp2_gmac_pcs_inband_caps(struct phylink_pcs *pcs,
+ phy_interface_t interface)
{
- /* When in 802.3z mode, we must have AN enabled:
+ /* When operating in an 802.3z mode, we must have AN enabled:
* Bit 2 Field InBandAnEn In-band Auto-Negotiation enable. ...
* When <PortType> = 1 (1000BASE-X) this field must be set to 1.
+ * Therefore, inband is "required".
*/
- if (phy_interface_mode_is_8023z(state->interface) &&
- !phylink_test(state->advertising, Autoneg))
- return -EINVAL;
+ if (phy_interface_mode_is_8023z(interface))
+ return LINK_INBAND_ENABLE;
- return 0;
+ /* SGMII and RGMII can be configured to use inband signalling of the
+ * AN result. Indicate these as "possible".
+ */
+ if (interface == PHY_INTERFACE_MODE_SGMII ||
+ phy_interface_mode_is_rgmii(interface))
+ return LINK_INBAND_DISABLE | LINK_INBAND_ENABLE;
+
+ /* For any other modes, indicate that inband is not supported. */
+ return LINK_INBAND_DISABLE;
}
static void mvpp2_gmac_pcs_get_state(struct phylink_pcs *pcs,
@@ -6356,7 +6363,7 @@ static void mvpp2_gmac_pcs_an_restart(st
}
static const struct phylink_pcs_ops mvpp2_phylink_gmac_pcs_ops = {
- .pcs_validate = mvpp2_gmac_pcs_validate,
+ .pcs_inband_caps = mvpp2_gmac_pcs_inband_caps,
.pcs_get_state = mvpp2_gmac_pcs_get_state,
.pcs_config = mvpp2_gmac_pcs_config,
.pcs_an_restart = mvpp2_gmac_pcs_an_restart,

228
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@ -0,0 +1,228 @@
From 5fd0f1a02e750e2db4038dee60edea669ce5aab1 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:43 +0000
Subject: [PATCH 12/13] net: phylink: add negotiation of in-band capabilities
Support for in-band signalling with Serdes links is uncertain. Some
PHYs do not support in-band for e.g. SGMII. Some PCS do not support
in-band for 2500Base-X. Some PCS require in-band for Base-X protocols.
Simply using what is in DT is insufficient when we have hot-pluggable
PHYs e.g. in the form of SFP modules, which may not provide the
in-band signalling.
In order to address this, we have introduced phy_inband_caps() and
pcs_inband_caps() functions to allow phylink to retrieve the
capabilities from each end of the PCS/PHY link. This commit adds code
to resolve whether in-band will be used in the various scenarios that
we have: In-band not being used, PHY present using SGMII or Base-X,
PHY not present. We also deal with no capabilties provided.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUsJ-006IUn-H3@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 154 +++++++++++++++++++++++++++++++++++---
1 file changed, 144 insertions(+), 10 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -75,6 +75,7 @@ struct phylink {
struct mutex state_mutex;
struct phylink_link_state phy_state;
+ unsigned int phy_ib_mode;
struct work_struct resolve;
unsigned int pcs_neg_mode;
unsigned int pcs_state;
@@ -1170,10 +1171,18 @@ static void phylink_pcs_neg_mode(struct
phy_interface_t interface,
const unsigned long *advertising)
{
+ unsigned int pcs_ib_caps = 0;
+ unsigned int phy_ib_caps = 0;
unsigned int neg_mode, mode;
+ enum {
+ INBAND_CISCO_SGMII,
+ INBAND_BASEX,
+ } type;
mode = pl->req_link_an_mode;
+ pl->phy_ib_mode = 0;
+
switch (interface) {
case PHY_INTERFACE_MODE_SGMII:
case PHY_INTERFACE_MODE_QSGMII:
@@ -1185,10 +1194,7 @@ static void phylink_pcs_neg_mode(struct
* inband communication. Note: there exist PHYs that run
* with SGMII but do not send the inband data.
*/
- if (!phylink_autoneg_inband(mode))
- neg_mode = PHYLINK_PCS_NEG_OUTBAND;
- else
- neg_mode = PHYLINK_PCS_NEG_INBAND_ENABLED;
+ type = INBAND_CISCO_SGMII;
break;
case PHY_INTERFACE_MODE_1000BASEX:
@@ -1199,18 +1205,139 @@ static void phylink_pcs_neg_mode(struct
* as well, but drivers may not support this, so may
* need to override this.
*/
- if (!phylink_autoneg_inband(mode))
+ type = INBAND_BASEX;
+ break;
+
+ default:
+ pl->pcs_neg_mode = PHYLINK_PCS_NEG_NONE;
+ pl->act_link_an_mode = mode;
+ return;
+ }
+
+ if (pcs)
+ pcs_ib_caps = phylink_pcs_inband_caps(pcs, interface);
+
+ if (pl->phydev)
+ phy_ib_caps = phy_inband_caps(pl->phydev, interface);
+
+ phylink_dbg(pl, "interface %s inband modes: pcs=%02x phy=%02x\n",
+ phy_modes(interface), pcs_ib_caps, phy_ib_caps);
+
+ if (!phylink_autoneg_inband(mode)) {
+ bool pcs_ib_only = false;
+ bool phy_ib_only = false;
+
+ if (pcs_ib_caps && pcs_ib_caps != LINK_INBAND_DISABLE) {
+ /* PCS supports reporting in-band capabilities, and
+ * supports more than disable mode.
+ */
+ if (pcs_ib_caps & LINK_INBAND_DISABLE)
+ neg_mode = PHYLINK_PCS_NEG_OUTBAND;
+ else if (pcs_ib_caps & LINK_INBAND_ENABLE)
+ pcs_ib_only = true;
+ }
+
+ if (phy_ib_caps && phy_ib_caps != LINK_INBAND_DISABLE) {
+ /* PHY supports in-band capabilities, and supports
+ * more than disable mode.
+ */
+ if (phy_ib_caps & LINK_INBAND_DISABLE)
+ pl->phy_ib_mode = LINK_INBAND_DISABLE;
+ else if (phy_ib_caps & LINK_INBAND_BYPASS)
+ pl->phy_ib_mode = LINK_INBAND_BYPASS;
+ else if (phy_ib_caps & LINK_INBAND_ENABLE)
+ phy_ib_only = true;
+ }
+
+ /* If either the PCS or PHY requires inband to be enabled,
+ * this is an invalid configuration. Provide a diagnostic
+ * message for this case, but don't try to force the issue.
+ */
+ if (pcs_ib_only || phy_ib_only)
+ phylink_warn(pl,
+ "firmware wants %s mode, but %s%s%s requires inband\n",
+ phylink_an_mode_str(mode),
+ pcs_ib_only ? "PCS" : "",
+ pcs_ib_only && phy_ib_only ? " and " : "",
+ phy_ib_only ? "PHY" : "");
+
+ neg_mode = PHYLINK_PCS_NEG_OUTBAND;
+ } else if (type == INBAND_CISCO_SGMII || pl->phydev) {
+ /* For SGMII modes which are designed to be used with PHYs, or
+ * Base-X with a PHY, we try to use in-band mode where-ever
+ * possible. However, there are some PHYs e.g. BCM84881 which
+ * do not support in-band.
+ */
+ const unsigned int inband_ok = LINK_INBAND_ENABLE |
+ LINK_INBAND_BYPASS;
+ const unsigned int outband_ok = LINK_INBAND_DISABLE |
+ LINK_INBAND_BYPASS;
+ /* PCS PHY
+ * D E D E
+ * 0 0 0 0 no information inband enabled
+ * 1 0 0 0 pcs doesn't support outband
+ * 0 1 0 0 pcs required inband enabled
+ * 1 1 0 0 pcs optional inband enabled
+ * 0 0 1 0 phy doesn't support outband
+ * 1 0 1 0 pcs+phy doesn't support outband
+ * 0 1 1 0 pcs required, phy doesn't support, invalid
+ * 1 1 1 0 pcs optional, phy doesn't support, outband
+ * 0 0 0 1 phy required inband enabled
+ * 1 0 0 1 pcs doesn't support, phy required, invalid
+ * 0 1 0 1 pcs+phy required inband enabled
+ * 1 1 0 1 pcs optional, phy required inband enabled
+ * 0 0 1 1 phy optional inband enabled
+ * 1 0 1 1 pcs doesn't support, phy optional, outband
+ * 0 1 1 1 pcs required, phy optional inband enabled
+ * 1 1 1 1 pcs+phy optional inband enabled
+ */
+ if ((!pcs_ib_caps || pcs_ib_caps & inband_ok) &&
+ (!phy_ib_caps || phy_ib_caps & inband_ok)) {
+ /* In-band supported or unknown at both ends. Enable
+ * in-band mode with or without bypass at the PHY.
+ */
+ if (phy_ib_caps & LINK_INBAND_ENABLE)
+ pl->phy_ib_mode = LINK_INBAND_ENABLE;
+ else if (phy_ib_caps & LINK_INBAND_BYPASS)
+ pl->phy_ib_mode = LINK_INBAND_BYPASS;
+
+ neg_mode = PHYLINK_PCS_NEG_INBAND_ENABLED;
+ } else if ((!pcs_ib_caps || pcs_ib_caps & outband_ok) &&
+ (!phy_ib_caps || phy_ib_caps & outband_ok)) {
+ /* Either in-band not supported at at least one end.
+ * In-band bypass at the other end is possible.
+ */
+ if (phy_ib_caps & LINK_INBAND_DISABLE)
+ pl->phy_ib_mode = LINK_INBAND_DISABLE;
+ else if (phy_ib_caps & LINK_INBAND_BYPASS)
+ pl->phy_ib_mode = LINK_INBAND_BYPASS;
+
neg_mode = PHYLINK_PCS_NEG_OUTBAND;
+ if (pl->phydev)
+ mode = MLO_AN_PHY;
+ } else {
+ /* invalid */
+ phylink_warn(pl, "%s: incompatible in-band capabilities, trying in-band",
+ phy_modes(interface));
+ neg_mode = PHYLINK_PCS_NEG_INBAND_ENABLED;
+ }
+ } else {
+ /* For Base-X without a PHY */
+ if (pcs_ib_caps == LINK_INBAND_DISABLE)
+ /* If the PCS doesn't support inband, then inband must
+ * be disabled.
+ */
+ neg_mode = PHYLINK_PCS_NEG_INBAND_DISABLED;
+ else if (pcs_ib_caps == LINK_INBAND_ENABLE)
+ /* If the PCS requires inband, then inband must always
+ * be enabled.
+ */
+ neg_mode = PHYLINK_PCS_NEG_INBAND_ENABLED;
else if (linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
advertising))
neg_mode = PHYLINK_PCS_NEG_INBAND_ENABLED;
else
neg_mode = PHYLINK_PCS_NEG_INBAND_DISABLED;
- break;
-
- default:
- neg_mode = PHYLINK_PCS_NEG_NONE;
- break;
}
pl->pcs_neg_mode = neg_mode;
@@ -1309,6 +1436,13 @@ static void phylink_major_config(struct
ERR_PTR(err));
}
+ if (pl->phydev && pl->phy_ib_mode) {
+ err = phy_config_inband(pl->phydev, pl->phy_ib_mode);
+ if (err < 0)
+ phylink_err(pl, "phy_config_inband: %pe\n",
+ ERR_PTR(err));
+ }
+
if (pl->sfp_bus) {
rate_kbd = phylink_interface_signal_rate(state->interface);
if (rate_kbd)

110
target/linux/generic/backport-6.12/601-13-v6.14-net-phylink-remove-phylink_phy_no_inband.patch Normal file
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@ -0,0 +1,110 @@
From 77ac9a8b2536e0eaca6c6f21070068458bf55981 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:48 +0000
Subject: [PATCH 13/13] net: phylink: remove phylink_phy_no_inband()
Remove phylink_phy_no_inband() now that we are handling the lack of
inband negotiation by querying the capabilities of the PHY and PCS,
and the BCM84881 PHY driver provides us the information necessary to
make the decision.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUsO-006IUt-KN@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 27 ++++++---------------------
1 file changed, 6 insertions(+), 21 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -3394,10 +3394,11 @@ static phy_interface_t phylink_choose_sf
return interface;
}
-static void phylink_sfp_set_config(struct phylink *pl, u8 mode,
+static void phylink_sfp_set_config(struct phylink *pl,
unsigned long *supported,
struct phylink_link_state *state)
{
+ u8 mode = MLO_AN_INBAND;
bool changed = false;
phylink_dbg(pl, "requesting link mode %s/%s with support %*pb\n",
@@ -3431,8 +3432,7 @@ static void phylink_sfp_set_config(struc
phylink_mac_initial_config(pl, false);
}
-static int phylink_sfp_config_phy(struct phylink *pl, u8 mode,
- struct phy_device *phy)
+static int phylink_sfp_config_phy(struct phylink *pl, struct phy_device *phy)
{
__ETHTOOL_DECLARE_LINK_MODE_MASK(support1);
__ETHTOOL_DECLARE_LINK_MODE_MASK(support);
@@ -3472,7 +3472,7 @@ static int phylink_sfp_config_phy(struct
if (ret) {
phylink_err(pl,
"validation of %s/%s with support %*pb failed: %pe\n",
- phylink_an_mode_str(mode),
+ phylink_an_mode_str(pl->req_link_an_mode),
phy_modes(config.interface),
__ETHTOOL_LINK_MODE_MASK_NBITS, support,
ERR_PTR(ret));
@@ -3481,7 +3481,7 @@ static int phylink_sfp_config_phy(struct
pl->link_port = pl->sfp_port;
- phylink_sfp_set_config(pl, mode, support, &config);
+ phylink_sfp_set_config(pl, support, &config);
return 0;
}
@@ -3556,7 +3556,7 @@ static int phylink_sfp_config_optical(st
pl->link_port = pl->sfp_port;
- phylink_sfp_set_config(pl, MLO_AN_INBAND, pl->sfp_support, &config);
+ phylink_sfp_set_config(pl, pl->sfp_support, &config);
return 0;
}
@@ -3627,20 +3627,10 @@ static void phylink_sfp_link_up(void *up
phylink_enable_and_run_resolve(pl, PHYLINK_DISABLE_LINK);
}
-/* The Broadcom BCM84881 in the Methode DM7052 is unable to provide a SGMII
- * or 802.3z control word, so inband will not work.
- */
-static bool phylink_phy_no_inband(struct phy_device *phy)
-{
- return phy->is_c45 && phy_id_compare(phy->c45_ids.device_ids[1],
- 0xae025150, 0xfffffff0);
-}
-
static int phylink_sfp_connect_phy(void *upstream, struct phy_device *phy)
{
struct phylink *pl = upstream;
phy_interface_t interface;
- u8 mode;
int ret;
/*
@@ -3652,17 +3642,12 @@ static int phylink_sfp_connect_phy(void
*/
phy_support_asym_pause(phy);
- if (phylink_phy_no_inband(phy))
- mode = MLO_AN_PHY;
- else
- mode = MLO_AN_INBAND;
-
/* Set the PHY's host supported interfaces */
phy_interface_and(phy->host_interfaces, phylink_sfp_interfaces,
pl->config->supported_interfaces);
/* Do the initial configuration */
- ret = phylink_sfp_config_phy(pl, mode, phy);
+ ret = phylink_sfp_config_phy(pl, phy);
if (ret < 0)
return ret;

53
target/linux/generic/backport-6.12/602-01-v6.14-net-pcs-pcs-lynx-implement-pcs_inband_caps-method.patch Normal file
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@ -0,0 +1,53 @@
From 6561f0e547be221f411fda5eddfcc5bd8bb058a5 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Thu, 5 Dec 2024 09:42:24 +0000
Subject: [PATCH 1/3] net: pcs: pcs-lynx: implement pcs_inband_caps() method
Report the PCS in-band capabilities to phylink for the Lynx PCS.
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tJ8NM-006L5J-AH@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/pcs/pcs-lynx.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
--- a/drivers/net/pcs/pcs-lynx.c
+++ b/drivers/net/pcs/pcs-lynx.c
@@ -35,6 +35,27 @@ enum sgmii_speed {
#define phylink_pcs_to_lynx(pl_pcs) container_of((pl_pcs), struct lynx_pcs, pcs)
#define lynx_to_phylink_pcs(lynx) (&(lynx)->pcs)
+static unsigned int lynx_pcs_inband_caps(struct phylink_pcs *pcs,
+ phy_interface_t interface)
+{
+ switch (interface) {
+ case PHY_INTERFACE_MODE_1000BASEX:
+ case PHY_INTERFACE_MODE_SGMII:
+ case PHY_INTERFACE_MODE_QSGMII:
+ return LINK_INBAND_DISABLE | LINK_INBAND_ENABLE;
+
+ case PHY_INTERFACE_MODE_10GBASER:
+ case PHY_INTERFACE_MODE_2500BASEX:
+ return LINK_INBAND_DISABLE;
+
+ case PHY_INTERFACE_MODE_USXGMII:
+ return LINK_INBAND_ENABLE;
+
+ default:
+ return 0;
+ }
+}
+
static void lynx_pcs_get_state_usxgmii(struct mdio_device *pcs,
struct phylink_link_state *state)
{
@@ -306,6 +327,7 @@ static void lynx_pcs_link_up(struct phyl
}
static const struct phylink_pcs_ops lynx_pcs_phylink_ops = {
+ .pcs_inband_caps = lynx_pcs_inband_caps,
.pcs_get_state = lynx_pcs_get_state,
.pcs_config = lynx_pcs_config,
.pcs_an_restart = lynx_pcs_an_restart,

47
target/linux/generic/backport-6.12/602-02-v6.14-net-pcs-pcs-mtk-lynxi-implement-pcs_inband_caps-meth.patch Normal file
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@ -0,0 +1,47 @@
From 520d29bdda86915b3caf8c72825a574bff212553 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Thu, 5 Dec 2024 09:42:29 +0000
Subject: [PATCH 2/3] net: pcs: pcs-mtk-lynxi: implement pcs_inband_caps()
method
Report the PCS in-band capabilities to phylink for the LynxI PCS.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tJ8NR-006L5P-E3@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/pcs/pcs-mtk-lynxi.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
--- a/drivers/net/pcs/pcs-mtk-lynxi.c
+++ b/drivers/net/pcs/pcs-mtk-lynxi.c
@@ -88,6 +88,21 @@ static struct mtk_pcs_lynxi *pcs_to_mtk_
return container_of(pcs, struct mtk_pcs_lynxi, pcs);
}
+static unsigned int mtk_pcs_lynxi_inband_caps(struct phylink_pcs *pcs,
+ phy_interface_t interface)
+{
+ switch (interface) {
+ case PHY_INTERFACE_MODE_1000BASEX:
+ case PHY_INTERFACE_MODE_2500BASEX:
+ case PHY_INTERFACE_MODE_SGMII:
+ case PHY_INTERFACE_MODE_QSGMII:
+ return LINK_INBAND_DISABLE | LINK_INBAND_ENABLE;
+
+ default:
+ return 0;
+ }
+}
+
static void mtk_pcs_lynxi_get_state(struct phylink_pcs *pcs,
struct phylink_link_state *state)
{
@@ -241,6 +256,7 @@ static void mtk_pcs_lynxi_disable(struct
}
static const struct phylink_pcs_ops mtk_pcs_lynxi_ops = {
+ .pcs_inband_caps = mtk_pcs_lynxi_inband_caps,
.pcs_get_state = mtk_pcs_lynxi_get_state,
.pcs_config = mtk_pcs_lynxi_config,
.pcs_an_restart = mtk_pcs_lynxi_restart_an,

58
target/linux/generic/backport-6.12/602-03-v6.14-net-pcs-xpcs-implement-pcs_inband_caps-method.patch Normal file
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@ -0,0 +1,58 @@
From 484d0170d6c6bbb5213d037664e9a551f793bacd Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Thu, 5 Dec 2024 09:42:34 +0000
Subject: [PATCH 3/3] net: pcs: xpcs: implement pcs_inband_caps() method
Report the PCS inband capabilities to phylink for XPCS.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tJ8NW-006L5V-I9@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/pcs/pcs-xpcs.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
--- a/drivers/net/pcs/pcs-xpcs.c
+++ b/drivers/net/pcs/pcs-xpcs.c
@@ -608,6 +608,33 @@ static int xpcs_validate(struct phylink_
return 0;
}
+static unsigned int xpcs_inband_caps(struct phylink_pcs *pcs,
+ phy_interface_t interface)
+{
+ struct dw_xpcs *xpcs = phylink_pcs_to_xpcs(pcs);
+ const struct dw_xpcs_compat *compat;
+
+ compat = xpcs_find_compat(xpcs->desc, interface);
+ if (!compat)
+ return 0;
+
+ switch (compat->an_mode) {
+ case DW_AN_C73:
+ return LINK_INBAND_ENABLE;
+
+ case DW_AN_C37_SGMII:
+ case DW_AN_C37_1000BASEX:
+ return LINK_INBAND_DISABLE | LINK_INBAND_ENABLE;
+
+ case DW_10GBASER:
+ case DW_2500BASEX:
+ return LINK_INBAND_DISABLE;
+
+ default:
+ return 0;
+ }
+}
+
void xpcs_get_interfaces(struct dw_xpcs *xpcs, unsigned long *interfaces)
{
int i, j;
@@ -1365,6 +1392,7 @@ static const struct dw_xpcs_desc xpcs_de
static const struct phylink_pcs_ops xpcs_phylink_ops = {
.pcs_validate = xpcs_validate,
+ .pcs_inband_caps = xpcs_inband_caps,
.pcs_config = xpcs_config,
.pcs_get_state = xpcs_get_state,
.pcs_an_restart = xpcs_an_restart,

4
target/linux/generic/backport-6.12/720-09-v6.14-net-phy-Constify-struct-mdio_device_id.patch
View File

@ -194,7 +194,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
{ PHY_ID_BCM72165, 0xfffffff0, },
--- a/drivers/net/phy/bcm84881.c
+++ b/drivers/net/phy/bcm84881.c
@@ -252,7 +252,7 @@ static struct phy_driver bcm84881_driver
@@ -262,7 +262,7 @@ static struct phy_driver bcm84881_driver
module_phy_driver(bcm84881_drivers);
/* FIXME: module auto-loading for Clause 45 PHYs seems non-functional */
@ -403,7 +403,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
};
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -4133,7 +4133,7 @@ static struct phy_driver marvell_drivers
@@ -4181,7 +4181,7 @@ static struct phy_driver marvell_drivers
module_phy_driver(marvell_drivers);

2
target/linux/generic/backport-6.12/730-03-v6.13-net-phy-support-active-high-property-for-PHY-LEDs.patch
View File

@ -39,7 +39,7 @@ Signed-off-by: Paolo Abeni <pabeni@redhat.com>
if (!phydev->drv->led_polarity_set)
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -874,8 +874,9 @@ struct phy_plca_status {
@@ -892,8 +892,9 @@ struct phy_plca_status {
/* Modes for PHY LED configuration */
enum phy_led_modes {

2
target/linux/generic/backport-6.12/782-01-v6.16-net-phy-pass-PHY-driver-to-.match_phy_device-OP.patch
View File

@ -281,7 +281,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
}
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -1004,7 +1004,8 @@ struct phy_driver {
@@ -1035,7 +1035,8 @@ struct phy_driver {
* driver for the given phydev. If NULL, matching is based on
* phy_id and phy_id_mask.
*/

2
target/linux/generic/backport-6.12/782-04-v6.16-net-phy-introduce-genphy_match_phy_device.patch
View File

@ -97,7 +97,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
static ssize_t
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -1906,6 +1906,9 @@ char *phy_attached_info_irq(struct phy_d
@@ -1940,6 +1940,9 @@ char *phy_attached_info_irq(struct phy_d
__malloc;
void phy_attached_info(struct phy_device *phydev);

41
target/linux/generic/backport-6.6/604-01-v6.13-net-phylink-move-manual-flow-control-setting.patch Normal file
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@ -0,0 +1,41 @@
From 8cc5f4cb94c0b1c7c1ba8013c14fd02ffb1a25f3 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Fri, 8 Nov 2024 16:01:44 +0000
Subject: [PATCH 1/5] net: phylink: move manual flow control setting
Move the handling of manual flow control configuration to a common
location during resolve. We currently evaluate this for all but
fixed links.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1t9RQe-002Feh-T1@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1433,7 +1433,6 @@ static void phylink_resolve(struct work_
switch (pl->cur_link_an_mode) {
case MLO_AN_PHY:
link_state = pl->phy_state;
- phylink_apply_manual_flow(pl, &link_state);
mac_config = link_state.link;
break;
@@ -1494,11 +1493,13 @@ static void phylink_resolve(struct work_
link_state.pause = pl->phy_state.pause;
mac_config = true;
}
- phylink_apply_manual_flow(pl, &link_state);
break;
}
}
+ if (pl->cur_link_an_mode != MLO_AN_FIXED)
+ phylink_apply_manual_flow(pl, &link_state);
+
if (mac_config) {
if (link_state.interface != pl->link_config.interface) {
/* The interface has changed, force the link down and

42
target/linux/generic/backport-6.6/604-02-v6.13-net-phylink-move-MLO_AN_FIXED-resolve-handling-to-if.patch Normal file
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@ -0,0 +1,42 @@
From 92abfcb4ced482afbe65d18980e6734fe1e62a34 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Fri, 8 Nov 2024 16:01:50 +0000
Subject: [PATCH 2/5] net: phylink: move MLO_AN_FIXED resolve handling to if()
statement
The switch() statement doesn't sit very well with the preceeding if()
statements, and results in excessive indentation that spoils code
readability. Begin cleaning this up by converting the MLO_AN_FIXED case
to an if() statement.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1t9RQk-002Fen-1A@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1429,6 +1429,9 @@ static void phylink_resolve(struct work_
} else if (pl->mac_link_dropped) {
link_state.link = false;
retrigger = true;
+ } else if (pl->cur_link_an_mode == MLO_AN_FIXED) {
+ phylink_get_fixed_state(pl, &link_state);
+ mac_config = link_state.link;
} else {
switch (pl->cur_link_an_mode) {
case MLO_AN_PHY:
@@ -1436,11 +1439,6 @@ static void phylink_resolve(struct work_
mac_config = link_state.link;
break;
- case MLO_AN_FIXED:
- phylink_get_fixed_state(pl, &link_state);
- mac_config = link_state.link;
- break;
-
case MLO_AN_INBAND:
phylink_mac_pcs_get_state(pl, &link_state);

37
target/linux/generic/backport-6.6/604-03-v6.13-net-phylink-move-MLO_AN_PHY-resolve-handling-to-if-s.patch Normal file
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@ -0,0 +1,37 @@
From f0f46c2a3d8ea9d1427298c8103a777d9e616c29 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Fri, 8 Nov 2024 16:01:55 +0000
Subject: [PATCH 3/5] net: phylink: move MLO_AN_PHY resolve handling to if()
statement
The switch() statement doesn't sit very well with the preceeding if()
statements, and results in excessive indentation that spoils code
readability. Continue cleaning this up by converting the MLO_AN_PHY
case to use an if() statmeent.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1t9RQp-002Fet-5W@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1432,13 +1432,11 @@ static void phylink_resolve(struct work_
} else if (pl->cur_link_an_mode == MLO_AN_FIXED) {
phylink_get_fixed_state(pl, &link_state);
mac_config = link_state.link;
+ } else if (pl->cur_link_an_mode == MLO_AN_PHY) {
+ link_state = pl->phy_state;
+ mac_config = link_state.link;
} else {
switch (pl->cur_link_an_mode) {
- case MLO_AN_PHY:
- link_state = pl->phy_state;
- mac_config = link_state.link;
- break;
-
case MLO_AN_INBAND:
phylink_mac_pcs_get_state(pl, &link_state);

127
target/linux/generic/backport-6.6/604-04-v6.13-net-phylink-remove-switch-statement-in-resolve-handl.patch Normal file
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@ -0,0 +1,127 @@
From d1a16dbbd84e02d2a6dcfcb8d5c4b8b2c0289f00 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Fri, 8 Nov 2024 16:02:00 +0000
Subject: [PATCH 4/5] net: phylink: remove switch() statement in resolve
handling
The switch() statement doesn't sit very well with the preceeding if()
statements, so let's just convert everything to if()s. As a result of
the two preceding commits, there is now only one case in the switch()
statement. Remove the switch statement and reduce the code indentation.
Code reformatting will be in the following commit.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1t9RQu-002Fez-AA@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 94 +++++++++++++++++++--------------------
1 file changed, 45 insertions(+), 49 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1436,60 +1436,56 @@ static void phylink_resolve(struct work_
link_state = pl->phy_state;
mac_config = link_state.link;
} else {
- switch (pl->cur_link_an_mode) {
- case MLO_AN_INBAND:
- phylink_mac_pcs_get_state(pl, &link_state);
-
- /* The PCS may have a latching link-fail indicator.
- * If the link was up, bring the link down and
- * re-trigger the resolve. Otherwise, re-read the
- * PCS state to get the current status of the link.
+ phylink_mac_pcs_get_state(pl, &link_state);
+
+ /* The PCS may have a latching link-fail indicator.
+ * If the link was up, bring the link down and
+ * re-trigger the resolve. Otherwise, re-read the
+ * PCS state to get the current status of the link.
+ */
+ if (!link_state.link) {
+ if (cur_link_state)
+ retrigger = true;
+ else
+ phylink_mac_pcs_get_state(pl,
+ &link_state);
+ }
+
+ /* If we have a phy, the "up" state is the union of
+ * both the PHY and the MAC
+ */
+ if (pl->phydev)
+ link_state.link &= pl->phy_state.link;
+
+ /* Only update if the PHY link is up */
+ if (pl->phydev && pl->phy_state.link) {
+ /* If the interface has changed, force a
+ * link down event if the link isn't already
+ * down, and re-resolve.
*/
- if (!link_state.link) {
- if (cur_link_state)
- retrigger = true;
- else
- phylink_mac_pcs_get_state(pl,
- &link_state);
+ if (link_state.interface !=
+ pl->phy_state.interface) {
+ retrigger = true;
+ link_state.link = false;
}
+ link_state.interface = pl->phy_state.interface;
- /* If we have a phy, the "up" state is the union of
- * both the PHY and the MAC
+ /* If we are doing rate matching, then the
+ * link speed/duplex comes from the PHY
*/
- if (pl->phydev)
- link_state.link &= pl->phy_state.link;
-
- /* Only update if the PHY link is up */
- if (pl->phydev && pl->phy_state.link) {
- /* If the interface has changed, force a
- * link down event if the link isn't already
- * down, and re-resolve.
- */
- if (link_state.interface !=
- pl->phy_state.interface) {
- retrigger = true;
- link_state.link = false;
- }
- link_state.interface = pl->phy_state.interface;
-
- /* If we are doing rate matching, then the
- * link speed/duplex comes from the PHY
- */
- if (pl->phy_state.rate_matching) {
- link_state.rate_matching =
- pl->phy_state.rate_matching;
- link_state.speed = pl->phy_state.speed;
- link_state.duplex =
- pl->phy_state.duplex;
- }
-
- /* If we have a PHY, we need to update with
- * the PHY flow control bits.
- */
- link_state.pause = pl->phy_state.pause;
- mac_config = true;
+ if (pl->phy_state.rate_matching) {
+ link_state.rate_matching =
+ pl->phy_state.rate_matching;
+ link_state.speed = pl->phy_state.speed;
+ link_state.duplex =
+ pl->phy_state.duplex;
}
- break;
+
+ /* If we have a PHY, we need to update with
+ * the PHY flow control bits.
+ */
+ link_state.pause = pl->phy_state.pause;
+ mac_config = true;
}
}

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@ -0,0 +1,85 @@
From bc08ce37d99a3992e975a0f397503cb23404f25a Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Fri, 8 Nov 2024 16:02:05 +0000
Subject: [PATCH 5/5] net: phylink: clean up phylink_resolve()
Now that we have reduced the indentation level, clean up the code
formatting.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1t9RQz-002Ff5-EA@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 35 ++++++++++++++++-------------------
1 file changed, 16 insertions(+), 19 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1438,51 +1438,48 @@ static void phylink_resolve(struct work_
} else {
phylink_mac_pcs_get_state(pl, &link_state);
- /* The PCS may have a latching link-fail indicator.
- * If the link was up, bring the link down and
- * re-trigger the resolve. Otherwise, re-read the
- * PCS state to get the current status of the link.
+ /* The PCS may have a latching link-fail indicator. If the link
+ * was up, bring the link down and re-trigger the resolve.
+ * Otherwise, re-read the PCS state to get the current status
+ * of the link.
*/
if (!link_state.link) {
if (cur_link_state)
retrigger = true;
else
- phylink_mac_pcs_get_state(pl,
- &link_state);
+ phylink_mac_pcs_get_state(pl, &link_state);
}
- /* If we have a phy, the "up" state is the union of
- * both the PHY and the MAC
+ /* If we have a phy, the "up" state is the union of both the
+ * PHY and the MAC
*/
if (pl->phydev)
link_state.link &= pl->phy_state.link;
/* Only update if the PHY link is up */
if (pl->phydev && pl->phy_state.link) {
- /* If the interface has changed, force a
- * link down event if the link isn't already
- * down, and re-resolve.
+ /* If the interface has changed, force a link down
+ * event if the link isn't already down, and re-resolve.
*/
- if (link_state.interface !=
- pl->phy_state.interface) {
+ if (link_state.interface != pl->phy_state.interface) {
retrigger = true;
link_state.link = false;
}
+
link_state.interface = pl->phy_state.interface;
- /* If we are doing rate matching, then the
- * link speed/duplex comes from the PHY
+ /* If we are doing rate matching, then the link
+ * speed/duplex comes from the PHY
*/
if (pl->phy_state.rate_matching) {
link_state.rate_matching =
pl->phy_state.rate_matching;
link_state.speed = pl->phy_state.speed;
- link_state.duplex =
- pl->phy_state.duplex;
+ link_state.duplex = pl->phy_state.duplex;
}
- /* If we have a PHY, we need to update with
- * the PHY flow control bits.
+ /* If we have a PHY, we need to update with the PHY
+ * flow control bits.
*/
link_state.pause = pl->phy_state.pause;
mac_config = true;

166
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@ -0,0 +1,166 @@
From 5e5401d6612ef599ad45785b941eebda7effc90f Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Thu, 4 Jan 2024 09:47:36 +0000
Subject: [PATCH] net: phylink: move phylink_pcs_neg_mode() into phylink.c
Move phylink_pcs_neg_mode() from the header file into the .c file since
nothing should be using it.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/phy/phylink.c | 66 +++++++++++++++++++++++++++++++++++++++
include/linux/phylink.h | 66 ---------------------------------------
2 files changed, 66 insertions(+), 66 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1116,6 +1116,72 @@ static void phylink_pcs_an_restart(struc
pl->pcs->ops->pcs_an_restart(pl->pcs);
}
+/**
+ * phylink_pcs_neg_mode() - helper to determine PCS inband mode
+ * @mode: one of %MLO_AN_FIXED, %MLO_AN_PHY, %MLO_AN_INBAND.
+ * @interface: interface mode to be used
+ * @advertising: adertisement ethtool link mode mask
+ *
+ * Determines the negotiation mode to be used by the PCS, and returns
+ * one of:
+ *
+ * - %PHYLINK_PCS_NEG_NONE: interface mode does not support inband
+ * - %PHYLINK_PCS_NEG_OUTBAND: an out of band mode (e.g. reading the PHY)
+ * will be used.
+ * - %PHYLINK_PCS_NEG_INBAND_DISABLED: inband mode selected but autoneg
+ * disabled
+ * - %PHYLINK_PCS_NEG_INBAND_ENABLED: inband mode selected and autoneg enabled
+ *
+ * Note: this is for cases where the PCS itself is involved in negotiation
+ * (e.g. Clause 37, SGMII and similar) not Clause 73.
+ */
+static unsigned int phylink_pcs_neg_mode(unsigned int mode,
+ phy_interface_t interface,
+ const unsigned long *advertising)
+{
+ unsigned int neg_mode;
+
+ switch (interface) {
+ case PHY_INTERFACE_MODE_SGMII:
+ case PHY_INTERFACE_MODE_QSGMII:
+ case PHY_INTERFACE_MODE_QUSGMII:
+ case PHY_INTERFACE_MODE_USXGMII:
+ /* These protocols are designed for use with a PHY which
+ * communicates its negotiation result back to the MAC via
+ * inband communication. Note: there exist PHYs that run
+ * with SGMII but do not send the inband data.
+ */
+ if (!phylink_autoneg_inband(mode))
+ neg_mode = PHYLINK_PCS_NEG_OUTBAND;
+ else
+ neg_mode = PHYLINK_PCS_NEG_INBAND_ENABLED;
+ break;
+
+ case PHY_INTERFACE_MODE_1000BASEX:
+ case PHY_INTERFACE_MODE_2500BASEX:
+ /* 1000base-X is designed for use media-side for Fibre
+ * connections, and thus the Autoneg bit needs to be
+ * taken into account. We also do this for 2500base-X
+ * as well, but drivers may not support this, so may
+ * need to override this.
+ */
+ if (!phylink_autoneg_inband(mode))
+ neg_mode = PHYLINK_PCS_NEG_OUTBAND;
+ else if (linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
+ advertising))
+ neg_mode = PHYLINK_PCS_NEG_INBAND_ENABLED;
+ else
+ neg_mode = PHYLINK_PCS_NEG_INBAND_DISABLED;
+ break;
+
+ default:
+ neg_mode = PHYLINK_PCS_NEG_NONE;
+ break;
+ }
+
+ return neg_mode;
+}
+
static void phylink_major_config(struct phylink *pl, bool restart,
const struct phylink_link_state *state)
{
--- a/include/linux/phylink.h
+++ b/include/linux/phylink.h
@@ -99,72 +99,6 @@ static inline bool phylink_autoneg_inban
}
/**
- * phylink_pcs_neg_mode() - helper to determine PCS inband mode
- * @mode: one of %MLO_AN_FIXED, %MLO_AN_PHY, %MLO_AN_INBAND.
- * @interface: interface mode to be used
- * @advertising: adertisement ethtool link mode mask
- *
- * Determines the negotiation mode to be used by the PCS, and returns
- * one of:
- *
- * - %PHYLINK_PCS_NEG_NONE: interface mode does not support inband
- * - %PHYLINK_PCS_NEG_OUTBAND: an out of band mode (e.g. reading the PHY)
- * will be used.
- * - %PHYLINK_PCS_NEG_INBAND_DISABLED: inband mode selected but autoneg
- * disabled
- * - %PHYLINK_PCS_NEG_INBAND_ENABLED: inband mode selected and autoneg enabled
- *
- * Note: this is for cases where the PCS itself is involved in negotiation
- * (e.g. Clause 37, SGMII and similar) not Clause 73.
- */
-static inline unsigned int phylink_pcs_neg_mode(unsigned int mode,
- phy_interface_t interface,
- const unsigned long *advertising)
-{
- unsigned int neg_mode;
-
- switch (interface) {
- case PHY_INTERFACE_MODE_SGMII:
- case PHY_INTERFACE_MODE_QSGMII:
- case PHY_INTERFACE_MODE_QUSGMII:
- case PHY_INTERFACE_MODE_USXGMII:
- /* These protocols are designed for use with a PHY which
- * communicates its negotiation result back to the MAC via
- * inband communication. Note: there exist PHYs that run
- * with SGMII but do not send the inband data.
- */
- if (!phylink_autoneg_inband(mode))
- neg_mode = PHYLINK_PCS_NEG_OUTBAND;
- else
- neg_mode = PHYLINK_PCS_NEG_INBAND_ENABLED;
- break;
-
- case PHY_INTERFACE_MODE_1000BASEX:
- case PHY_INTERFACE_MODE_2500BASEX:
- /* 1000base-X is designed for use media-side for Fibre
- * connections, and thus the Autoneg bit needs to be
- * taken into account. We also do this for 2500base-X
- * as well, but drivers may not support this, so may
- * need to override this.
- */
- if (!phylink_autoneg_inband(mode))
- neg_mode = PHYLINK_PCS_NEG_OUTBAND;
- else if (linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
- advertising))
- neg_mode = PHYLINK_PCS_NEG_INBAND_ENABLED;
- else
- neg_mode = PHYLINK_PCS_NEG_INBAND_DISABLED;
- break;
-
- default:
- neg_mode = PHYLINK_PCS_NEG_NONE;
- break;
- }
-
- return neg_mode;
-}
-
-/**
* struct phylink_link_state - link state structure
* @advertising: ethtool bitmask containing advertised link modes
* @lp_advertising: ethtool bitmask containing link partner advertised link

95
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@ -0,0 +1,95 @@
From 17ed1911f9c8d4f9af8e13b2c95103ee06dadc0f Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:30:47 +0000
Subject: [PATCH 01/13] net: phylink: pass phylink and pcs into
phylink_pcs_neg_mode()
Move the call to phylink_pcs_neg_mode() in phylink_major_config() after
we have selected the appropriate PCS to allow the PCS to be passed in.
Add struct phylink and struct phylink_pcs pointers to
phylink_pcs_neg_mode() and pass in the appropriate structures. Set
pl->pcs_neg_mode before returning, and remove the return value.
This will allow the capabilities of the PCS and any PHY to be used when
deciding which pcs_neg_mode should be used.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUrP-006ITh-6u@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 26 +++++++++++++-------------
1 file changed, 13 insertions(+), 13 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1118,7 +1118,8 @@ static void phylink_pcs_an_restart(struc
/**
* phylink_pcs_neg_mode() - helper to determine PCS inband mode
- * @mode: one of %MLO_AN_FIXED, %MLO_AN_PHY, %MLO_AN_INBAND.
+ * @pl: a pointer to a &struct phylink returned from phylink_create()
+ * @pcs: a pointer to &struct phylink_pcs
* @interface: interface mode to be used
* @advertising: adertisement ethtool link mode mask
*
@@ -1135,11 +1136,13 @@ static void phylink_pcs_an_restart(struc
* Note: this is for cases where the PCS itself is involved in negotiation
* (e.g. Clause 37, SGMII and similar) not Clause 73.
*/
-static unsigned int phylink_pcs_neg_mode(unsigned int mode,
- phy_interface_t interface,
- const unsigned long *advertising)
+static void phylink_pcs_neg_mode(struct phylink *pl, struct phylink_pcs *pcs,
+ phy_interface_t interface,
+ const unsigned long *advertising)
{
- unsigned int neg_mode;
+ unsigned int neg_mode, mode;
+
+ mode = pl->cur_link_an_mode;
switch (interface) {
case PHY_INTERFACE_MODE_SGMII:
@@ -1179,7 +1182,7 @@ static unsigned int phylink_pcs_neg_mode
break;
}
- return neg_mode;
+ pl->pcs_neg_mode = neg_mode;
}
static void phylink_major_config(struct phylink *pl, bool restart,
@@ -1193,10 +1196,6 @@ static void phylink_major_config(struct
phylink_dbg(pl, "major config %s\n", phy_modes(state->interface));
- pl->pcs_neg_mode = phylink_pcs_neg_mode(pl->cur_link_an_mode,
- state->interface,
- state->advertising);
-
if (pl->using_mac_select_pcs) {
pcs = pl->mac_ops->mac_select_pcs(pl->config, state->interface);
if (IS_ERR(pcs)) {
@@ -1209,6 +1208,8 @@ static void phylink_major_config(struct
pcs_changed = pcs && pl->pcs != pcs;
}
+ phylink_pcs_neg_mode(pl, pcs, state->interface, state->advertising);
+
phylink_pcs_poll_stop(pl);
if (pl->mac_ops->mac_prepare) {
@@ -1299,9 +1300,8 @@ static int phylink_change_inband_advert(
pl->link_config.pause);
/* Recompute the PCS neg mode */
- pl->pcs_neg_mode = phylink_pcs_neg_mode(pl->cur_link_an_mode,
- pl->link_config.interface,
- pl->link_config.advertising);
+ phylink_pcs_neg_mode(pl, pl->pcs, pl->link_config.interface,
+ pl->link_config.advertising);
neg_mode = pl->cur_link_an_mode;
if (pl->pcs->neg_mode)

281
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@ -0,0 +1,281 @@
From 1f92ead7e15003f632b5f138e8138095e0997d3d Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:30:52 +0000
Subject: [PATCH 02/13] net: phylink: split cur_link_an_mode into requested and
active
There is an interdependence between the current link_an_mode and
pcs_neg_mode that some drivers rely upon to know whether inband or PHY
mode will be used.
In order to support detection of PCS and PHY inband capabilities
resulting in automatic selection of inband or PHY mode, we need to
cater for this, and support changing the MAC link_an_mode. However, we
end up with an inter-dependency between the current link_an_mode and
pcs_neg_mode.
To solve this, split the current link_an_mode into the requested
link_an_mode and active link_an_mode. The requested link_an_mode will
always be passed to phylink_pcs_neg_mode(), and the active link_an_mode
will be used for everything else, and only updated during
phylink_major_config(). This will ensure that phylink_pcs_neg_mode()'s
link_an_mode will not depend on the active link_an_mode that will,
in a future patch, depend on pcs_neg_mode.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUrU-006ITn-Ai@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 60 ++++++++++++++++++++-------------------
1 file changed, 31 insertions(+), 29 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -56,7 +56,8 @@ struct phylink {
struct phy_device *phydev;
phy_interface_t link_interface; /* PHY_INTERFACE_xxx */
u8 cfg_link_an_mode; /* MLO_AN_xxx */
- u8 cur_link_an_mode;
+ u8 req_link_an_mode; /* Requested MLO_AN_xxx mode */
+ u8 act_link_an_mode; /* Active MLO_AN_xxx mode */
u8 link_port; /* The current non-phy ethtool port */
__ETHTOOL_DECLARE_LINK_MODE_MASK(supported);
@@ -1098,13 +1099,13 @@ static void phylink_mac_config(struct ph
phylink_dbg(pl,
"%s: mode=%s/%s/%s adv=%*pb pause=%02x\n",
- __func__, phylink_an_mode_str(pl->cur_link_an_mode),
+ __func__, phylink_an_mode_str(pl->act_link_an_mode),
phy_modes(st.interface),
phy_rate_matching_to_str(st.rate_matching),
__ETHTOOL_LINK_MODE_MASK_NBITS, st.advertising,
st.pause);
- pl->mac_ops->mac_config(pl->config, pl->cur_link_an_mode, &st);
+ pl->mac_ops->mac_config(pl->config, pl->act_link_an_mode, &st);
}
static void phylink_pcs_an_restart(struct phylink *pl)
@@ -1112,7 +1113,7 @@ static void phylink_pcs_an_restart(struc
if (pl->pcs && linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
pl->link_config.advertising) &&
phy_interface_mode_is_8023z(pl->link_config.interface) &&
- phylink_autoneg_inband(pl->cur_link_an_mode))
+ phylink_autoneg_inband(pl->act_link_an_mode))
pl->pcs->ops->pcs_an_restart(pl->pcs);
}
@@ -1142,7 +1143,7 @@ static void phylink_pcs_neg_mode(struct
{
unsigned int neg_mode, mode;
- mode = pl->cur_link_an_mode;
+ mode = pl->req_link_an_mode;
switch (interface) {
case PHY_INTERFACE_MODE_SGMII:
@@ -1183,6 +1184,7 @@ static void phylink_pcs_neg_mode(struct
}
pl->pcs_neg_mode = neg_mode;
+ pl->act_link_an_mode = mode;
}
static void phylink_major_config(struct phylink *pl, bool restart,
@@ -1213,7 +1215,7 @@ static void phylink_major_config(struct
phylink_pcs_poll_stop(pl);
if (pl->mac_ops->mac_prepare) {
- err = pl->mac_ops->mac_prepare(pl->config, pl->cur_link_an_mode,
+ err = pl->mac_ops->mac_prepare(pl->config, pl->act_link_an_mode,
state->interface);
if (err < 0) {
phylink_err(pl, "mac_prepare failed: %pe\n",
@@ -1247,7 +1249,7 @@ static void phylink_major_config(struct
if (pl->pcs_state == PCS_STATE_STARTING || pcs_changed)
phylink_pcs_enable(pl->pcs);
- neg_mode = pl->cur_link_an_mode;
+ neg_mode = pl->act_link_an_mode;
if (pl->pcs && pl->pcs->neg_mode)
neg_mode = pl->pcs_neg_mode;
@@ -1263,7 +1265,7 @@ static void phylink_major_config(struct
phylink_pcs_an_restart(pl);
if (pl->mac_ops->mac_finish) {
- err = pl->mac_ops->mac_finish(pl->config, pl->cur_link_an_mode,
+ err = pl->mac_ops->mac_finish(pl->config, pl->act_link_an_mode,
state->interface);
if (err < 0)
phylink_err(pl, "mac_finish failed: %pe\n",
@@ -1294,7 +1296,7 @@ static int phylink_change_inband_advert(
return 0;
phylink_dbg(pl, "%s: mode=%s/%s adv=%*pb pause=%02x\n", __func__,
- phylink_an_mode_str(pl->cur_link_an_mode),
+ phylink_an_mode_str(pl->req_link_an_mode),
phy_modes(pl->link_config.interface),
__ETHTOOL_LINK_MODE_MASK_NBITS, pl->link_config.advertising,
pl->link_config.pause);
@@ -1303,7 +1305,7 @@ static int phylink_change_inband_advert(
phylink_pcs_neg_mode(pl, pl->pcs, pl->link_config.interface,
pl->link_config.advertising);
- neg_mode = pl->cur_link_an_mode;
+ neg_mode = pl->act_link_an_mode;
if (pl->pcs->neg_mode)
neg_mode = pl->pcs_neg_mode;
@@ -1368,7 +1370,7 @@ static void phylink_mac_initial_config(s
{
struct phylink_link_state link_state;
- switch (pl->cur_link_an_mode) {
+ switch (pl->req_link_an_mode) {
case MLO_AN_PHY:
link_state = pl->phy_state;
break;
@@ -1442,14 +1444,14 @@ static void phylink_link_up(struct phyli
pl->cur_interface = link_state.interface;
- neg_mode = pl->cur_link_an_mode;
+ neg_mode = pl->act_link_an_mode;
if (pl->pcs && pl->pcs->neg_mode)
neg_mode = pl->pcs_neg_mode;
phylink_pcs_link_up(pl->pcs, neg_mode, pl->cur_interface, speed,
duplex);
- pl->mac_ops->mac_link_up(pl->config, pl->phydev, pl->cur_link_an_mode,
+ pl->mac_ops->mac_link_up(pl->config, pl->phydev, pl->act_link_an_mode,
pl->cur_interface, speed, duplex,
!!(link_state.pause & MLO_PAUSE_TX), rx_pause);
@@ -1469,7 +1471,7 @@ static void phylink_link_down(struct phy
if (ndev)
netif_carrier_off(ndev);
- pl->mac_ops->mac_link_down(pl->config, pl->cur_link_an_mode,
+ pl->mac_ops->mac_link_down(pl->config, pl->act_link_an_mode,
pl->cur_interface);
phylink_info(pl, "Link is Down\n");
}
@@ -1495,10 +1497,10 @@ static void phylink_resolve(struct work_
} else if (pl->mac_link_dropped) {
link_state.link = false;
retrigger = true;
- } else if (pl->cur_link_an_mode == MLO_AN_FIXED) {
+ } else if (pl->act_link_an_mode == MLO_AN_FIXED) {
phylink_get_fixed_state(pl, &link_state);
mac_config = link_state.link;
- } else if (pl->cur_link_an_mode == MLO_AN_PHY) {
+ } else if (pl->act_link_an_mode == MLO_AN_PHY) {
link_state = pl->phy_state;
mac_config = link_state.link;
} else {
@@ -1552,7 +1554,7 @@ static void phylink_resolve(struct work_
}
}
- if (pl->cur_link_an_mode != MLO_AN_FIXED)
+ if (pl->act_link_an_mode != MLO_AN_FIXED)
phylink_apply_manual_flow(pl, &link_state);
if (mac_config) {
@@ -1729,7 +1731,7 @@ struct phylink *phylink_create(struct ph
}
}
- pl->cur_link_an_mode = pl->cfg_link_an_mode;
+ pl->req_link_an_mode = pl->cfg_link_an_mode;
ret = phylink_register_sfp(pl, fwnode);
if (ret < 0) {
@@ -2126,7 +2128,7 @@ void phylink_start(struct phylink *pl)
ASSERT_RTNL();
phylink_info(pl, "configuring for %s/%s link mode\n",
- phylink_an_mode_str(pl->cur_link_an_mode),
+ phylink_an_mode_str(pl->req_link_an_mode),
phy_modes(pl->link_config.interface));
/* Always set the carrier off */
@@ -2385,7 +2387,7 @@ int phylink_ethtool_ksettings_get(struct
linkmode_copy(kset->link_modes.supported, pl->supported);
- switch (pl->cur_link_an_mode) {
+ switch (pl->act_link_an_mode) {
case MLO_AN_FIXED:
/* We are using fixed settings. Report these as the
* current link settings - and note that these also
@@ -2477,7 +2479,7 @@ int phylink_ethtool_ksettings_set(struct
/* If we have a fixed link, refuse to change link parameters.
* If the link parameters match, accept them but do nothing.
*/
- if (pl->cur_link_an_mode == MLO_AN_FIXED) {
+ if (pl->req_link_an_mode == MLO_AN_FIXED) {
if (s->speed != pl->link_config.speed ||
s->duplex != pl->link_config.duplex)
return -EINVAL;
@@ -2493,7 +2495,7 @@ int phylink_ethtool_ksettings_set(struct
* is our default case) but do not allow the advertisement to
* be changed. If the advertisement matches, simply return.
*/
- if (pl->cur_link_an_mode == MLO_AN_FIXED) {
+ if (pl->req_link_an_mode == MLO_AN_FIXED) {
if (!linkmode_equal(config.advertising,
pl->link_config.advertising))
return -EINVAL;
@@ -2533,7 +2535,7 @@ int phylink_ethtool_ksettings_set(struct
linkmode_copy(support, pl->supported);
if (phylink_validate(pl, support, &config)) {
phylink_err(pl, "validation of %s/%s with support %*pb failed\n",
- phylink_an_mode_str(pl->cur_link_an_mode),
+ phylink_an_mode_str(pl->req_link_an_mode),
phy_modes(config.interface),
__ETHTOOL_LINK_MODE_MASK_NBITS, support);
return -EINVAL;
@@ -2633,7 +2635,7 @@ int phylink_ethtool_set_pauseparam(struc
ASSERT_RTNL();
- if (pl->cur_link_an_mode == MLO_AN_FIXED)
+ if (pl->req_link_an_mode == MLO_AN_FIXED)
return -EOPNOTSUPP;
if (!phylink_test(pl->supported, Pause) &&
@@ -2897,7 +2899,7 @@ static int phylink_mii_read(struct phyli
struct phylink_link_state state;
int val = 0xffff;
- switch (pl->cur_link_an_mode) {
+ switch (pl->act_link_an_mode) {
case MLO_AN_FIXED:
if (phy_id == 0) {
phylink_get_fixed_state(pl, &state);
@@ -2922,7 +2924,7 @@ static int phylink_mii_read(struct phyli
static int phylink_mii_write(struct phylink *pl, unsigned int phy_id,
unsigned int reg, unsigned int val)
{
- switch (pl->cur_link_an_mode) {
+ switch (pl->act_link_an_mode) {
case MLO_AN_FIXED:
break;
@@ -3125,9 +3127,9 @@ static void phylink_sfp_set_config(struc
changed = true;
}
- if (pl->cur_link_an_mode != mode ||
+ if (pl->req_link_an_mode != mode ||
pl->link_config.interface != state->interface) {
- pl->cur_link_an_mode = mode;
+ pl->req_link_an_mode = mode;
pl->link_config.interface = state->interface;
changed = true;

66
target/linux/generic/backport-6.6/606-03-v6.14-net-phylink-add-debug-for-phylink_major_config.patch Normal file
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@ -0,0 +1,66 @@
From 4e7d000286fe8e12f2d88032711ffab3ab658b12 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:30:57 +0000
Subject: [PATCH 03/13] net: phylink: add debug for phylink_major_config()
Now that we have a more complexity in phylink_major_config(), augment
the debugging so we can see what's going on there.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUrZ-006ITt-Fa@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 27 ++++++++++++++++++++++++++-
1 file changed, 26 insertions(+), 1 deletion(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -163,6 +163,24 @@ static const char *phylink_an_mode_str(u
return mode < ARRAY_SIZE(modestr) ? modestr[mode] : "unknown";
}
+static const char *phylink_pcs_mode_str(unsigned int mode)
+{
+ if (!mode)
+ return "none";
+
+ if (mode & PHYLINK_PCS_NEG_OUTBAND)
+ return "outband";
+
+ if (mode & PHYLINK_PCS_NEG_INBAND) {
+ if (mode & PHYLINK_PCS_NEG_ENABLED)
+ return "inband,an-enabled";
+ else
+ return "inband,an-disabled";
+ }
+
+ return "unknown";
+}
+
static unsigned int phylink_interface_signal_rate(phy_interface_t interface)
{
switch (interface) {
@@ -1196,7 +1214,9 @@ static void phylink_major_config(struct
unsigned int neg_mode;
int err;
- phylink_dbg(pl, "major config %s\n", phy_modes(state->interface));
+ phylink_dbg(pl, "major config, requested %s/%s\n",
+ phylink_an_mode_str(pl->req_link_an_mode),
+ phy_modes(state->interface));
if (pl->using_mac_select_pcs) {
pcs = pl->mac_ops->mac_select_pcs(pl->config, state->interface);
@@ -1212,6 +1232,11 @@ static void phylink_major_config(struct
phylink_pcs_neg_mode(pl, pcs, state->interface, state->advertising);
+ phylink_dbg(pl, "major config, active %s/%s/%s\n",
+ phylink_an_mode_str(pl->act_link_an_mode),
+ phylink_pcs_mode_str(pl->pcs_neg_mode),
+ phy_modes(state->interface));
+
phylink_pcs_poll_stop(pl);
if (pl->mac_ops->mac_prepare) {

118
target/linux/generic/backport-6.6/606-04-v6.14-net-phy-add-phy_inband_caps.patch Normal file
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@ -0,0 +1,118 @@
From b4c7698dd95f253c6958d8c6ac219098009bf28a Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:02 +0000
Subject: [PATCH 04/13] net: phy: add phy_inband_caps()
Add a method to query the PHY's in-band capabilities for a PHY
interface mode.
Where the interface mode does not have in-band capability, or the PHY
driver has not been updated to return this information, then
phy_inband_caps() should return zero. Otherwise, PHY drivers will
return a value consisting of the following flags:
LINK_INBAND_DISABLE indicates that the hardware does not support
in-band signalling, or can have in-band signalling configured via
software to be disabled.
LINK_INBAND_ENABLE indicates that the hardware will use in-band
signalling, or can have in-band signalling configured via software
to be enabled.
LINK_INBAND_BYPASS indicates that the hardware has the ability to
bypass in-band signalling when enabled after a timeout if the link
partner does not respond to its in-band signalling.
This reports the PHY capabilities for the particular interface mode,
not the current configuration.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUre-006ITz-KF@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phy.c | 21 +++++++++++++++++++++
include/linux/phy.h | 28 ++++++++++++++++++++++++++++
2 files changed, 49 insertions(+)
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -973,6 +973,27 @@ static int phy_check_link_status(struct
}
/**
+ * phy_inband_caps - query which in-band signalling modes are supported
+ * @phydev: a pointer to a &struct phy_device
+ * @interface: the interface mode for the PHY
+ *
+ * Returns zero if it is unknown what in-band signalling is supported by the
+ * PHY (e.g. because the PHY driver doesn't implement the method.) Otherwise,
+ * returns a bit mask of the LINK_INBAND_* values from
+ * &enum link_inband_signalling to describe which inband modes are supported
+ * by the PHY for this interface mode.
+ */
+unsigned int phy_inband_caps(struct phy_device *phydev,
+ phy_interface_t interface)
+{
+ if (phydev->drv && phydev->drv->inband_caps)
+ return phydev->drv->inband_caps(phydev, interface);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(phy_inband_caps);
+
+/**
* _phy_start_aneg - start auto-negotiation for this PHY device
* @phydev: the phy_device struct
*
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -790,6 +790,24 @@ struct phy_tdr_config {
#define PHY_PAIR_ALL -1
/**
+ * enum link_inband_signalling - in-band signalling modes that are supported
+ *
+ * @LINK_INBAND_DISABLE: in-band signalling can be disabled
+ * @LINK_INBAND_ENABLE: in-band signalling can be enabled without bypass
+ * @LINK_INBAND_BYPASS: in-band signalling can be enabled with bypass
+ *
+ * The possible and required bits can only be used if the valid bit is set.
+ * If possible is clear, that means inband signalling can not be used.
+ * Required is only valid when possible is set, and means that inband
+ * signalling must be used.
+ */
+enum link_inband_signalling {
+ LINK_INBAND_DISABLE = BIT(0),
+ LINK_INBAND_ENABLE = BIT(1),
+ LINK_INBAND_BYPASS = BIT(2),
+};
+
+/**
* struct phy_plca_cfg - Configuration of the PLCA (Physical Layer Collision
* Avoidance) Reconciliation Sublayer.
*
@@ -919,6 +937,14 @@ struct phy_driver {
int (*get_features)(struct phy_device *phydev);
/**
+ * @inband_caps: query whether in-band is supported for the given PHY
+ * interface mode. Returns a bitmask of bits defined by enum
+ * link_inband_signalling.
+ */
+ unsigned int (*inband_caps)(struct phy_device *phydev,
+ phy_interface_t interface);
+
+ /**
* @get_rate_matching: Get the supported type of rate matching for a
* particular phy interface. This is used by phy consumers to determine
* whether to advertise lower-speed modes for that interface. It is
@@ -1735,6 +1761,8 @@ void phy_stop(struct phy_device *phydev)
int phy_config_aneg(struct phy_device *phydev);
int phy_start_aneg(struct phy_device *phydev);
int phy_aneg_done(struct phy_device *phydev);
+unsigned int phy_inband_caps(struct phy_device *phydev,
+ phy_interface_t interface);
int phy_speed_down(struct phy_device *phydev, bool sync);
int phy_speed_up(struct phy_device *phydev);
bool phy_check_valid(int speed, int duplex, unsigned long *features);

41
target/linux/generic/backport-6.6/606-05-v6.14-net-phy-bcm84881-implement-phy_inband_caps-method.patch Normal file
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@ -0,0 +1,41 @@
From c64c7fa0a774d9da72071a8517e359992baac982 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:07 +0000
Subject: [PATCH 05/13] net: phy: bcm84881: implement phy_inband_caps() method
BCM84881 has no support for inband signalling, so this is a trivial
implementation that returns no support for inband.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Acked-by: Florian Fainelli <florian.fainelli@broadcom.com>
Link: https://patch.msgid.link/E1tIUrj-006IU6-ON@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/bcm84881.c | 10 ++++++++++
1 file changed, 10 insertions(+)
--- a/drivers/net/phy/bcm84881.c
+++ b/drivers/net/phy/bcm84881.c
@@ -223,11 +223,21 @@ static int bcm84881_read_status(struct p
return genphy_c45_read_mdix(phydev);
}
+/* The Broadcom BCM84881 in the Methode DM7052 is unable to provide a SGMII
+ * or 802.3z control word, so inband will not work.
+ */
+static unsigned int bcm84881_inband_caps(struct phy_device *phydev,
+ phy_interface_t interface)
+{
+ return LINK_INBAND_DISABLE;
+}
+
static struct phy_driver bcm84881_drivers[] = {
{
.phy_id = 0xae025150,
.phy_id_mask = 0xfffffff0,
.name = "Broadcom BCM84881",
+ .inband_caps = bcm84881_inband_caps,
.config_init = bcm84881_config_init,
.probe = bcm84881_probe,
.get_features = bcm84881_get_features,

63
target/linux/generic/backport-6.6/606-06-v6.14-net-phy-marvell-implement-phy_inband_caps-method.patch Normal file
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@ -0,0 +1,63 @@
From 1c86828dff88e28b8ade6bddeee0163a023faf91 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:12 +0000
Subject: [PATCH 06/13] net: phy: marvell: implement phy_inband_caps() method
Provide an implementation for phy_inband_caps() for Marvell PHYs used
on SFP modules, so that phylink knows the PHYs capabilities.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUro-006IUC-Rq@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/marvell.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -673,6 +673,20 @@ static int marvell_config_aneg_fiber(str
return genphy_check_and_restart_aneg(phydev, changed);
}
+static unsigned int m88e1111_inband_caps(struct phy_device *phydev,
+ phy_interface_t interface)
+{
+ /* In 1000base-X and SGMII modes, the inband mode can be changed
+ * through the Fibre page BMCR ANENABLE bit.
+ */
+ if (interface == PHY_INTERFACE_MODE_1000BASEX ||
+ interface == PHY_INTERFACE_MODE_SGMII)
+ return LINK_INBAND_DISABLE | LINK_INBAND_ENABLE |
+ LINK_INBAND_BYPASS;
+
+ return 0;
+}
+
static int m88e1111_config_aneg(struct phy_device *phydev)
{
int extsr = phy_read(phydev, MII_M1111_PHY_EXT_SR);
@@ -3292,6 +3306,7 @@ static struct phy_driver marvell_drivers
.name = "Marvell 88E1112",
/* PHY_GBIT_FEATURES */
.probe = marvell_probe,
+ .inband_caps = m88e1111_inband_caps,
.config_init = m88e1112_config_init,
.config_aneg = marvell_config_aneg,
.config_intr = marvell_config_intr,
@@ -3312,6 +3327,7 @@ static struct phy_driver marvell_drivers
.name = "Marvell 88E1111",
/* PHY_GBIT_FEATURES */
.probe = marvell_probe,
+ .inband_caps = m88e1111_inband_caps,
.config_init = m88e1111gbe_config_init,
.config_aneg = m88e1111_config_aneg,
.read_status = marvell_read_status,
@@ -3333,6 +3349,7 @@ static struct phy_driver marvell_drivers
.name = "Marvell 88E1111 (Finisar)",
/* PHY_GBIT_FEATURES */
.probe = marvell_probe,
+ .inband_caps = m88e1111_inband_caps,
.config_init = m88e1111gbe_config_init,
.config_aneg = m88e1111_config_aneg,
.read_status = marvell_read_status,

79
target/linux/generic/backport-6.6/606-07-v6.14-net-phy-add-phy_config_inband.patch Normal file
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@ -0,0 +1,79 @@
From 5d58a890c02770ba8d790b1f3c6e8c0e20514dc2 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:18 +0000
Subject: [PATCH 07/13] net: phy: add phy_config_inband()
Add a method to configure the PHY's in-band mode.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUru-006IUI-08@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phy.c | 32 ++++++++++++++++++++++++++++++++
include/linux/phy.h | 6 ++++++
2 files changed, 38 insertions(+)
--- a/drivers/net/phy/phy.c
+++ b/drivers/net/phy/phy.c
@@ -994,6 +994,38 @@ unsigned int phy_inband_caps(struct phy_
EXPORT_SYMBOL_GPL(phy_inband_caps);
/**
+ * phy_config_inband - configure the desired PHY in-band mode
+ * @phydev: the phy_device struct
+ * @modes: in-band modes to configure
+ *
+ * Description: disables, enables or enables-with-bypass in-band signalling
+ * between the PHY and host system.
+ *
+ * Returns: zero on success, or negative errno value.
+ */
+int phy_config_inband(struct phy_device *phydev, unsigned int modes)
+{
+ int err;
+
+ if (!!(modes & LINK_INBAND_DISABLE) +
+ !!(modes & LINK_INBAND_ENABLE) +
+ !!(modes & LINK_INBAND_BYPASS) != 1)
+ return -EINVAL;
+
+ mutex_lock(&phydev->lock);
+ if (!phydev->drv)
+ err = -EIO;
+ else if (!phydev->drv->config_inband)
+ err = -EOPNOTSUPP;
+ else
+ err = phydev->drv->config_inband(phydev, modes);
+ mutex_unlock(&phydev->lock);
+
+ return err;
+}
+EXPORT_SYMBOL(phy_config_inband);
+
+/**
* _phy_start_aneg - start auto-negotiation for this PHY device
* @phydev: the phy_device struct
*
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -945,6 +945,11 @@ struct phy_driver {
phy_interface_t interface);
/**
+ * @config_inband: configure in-band mode for the PHY
+ */
+ int (*config_inband)(struct phy_device *phydev, unsigned int modes);
+
+ /**
* @get_rate_matching: Get the supported type of rate matching for a
* particular phy interface. This is used by phy consumers to determine
* whether to advertise lower-speed modes for that interface. It is
@@ -1763,6 +1768,7 @@ int phy_start_aneg(struct phy_device *ph
int phy_aneg_done(struct phy_device *phydev);
unsigned int phy_inband_caps(struct phy_device *phydev,
phy_interface_t interface);
+int phy_config_inband(struct phy_device *phydev, unsigned int modes);
int phy_speed_down(struct phy_device *phydev, bool sync);
int phy_speed_up(struct phy_device *phydev);
bool phy_check_valid(int speed, int duplex, unsigned long *features);

77
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@ -0,0 +1,77 @@
From a219912e0fec73c346e64ef47013cb2e152f88fc Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:23 +0000
Subject: [PATCH 08/13] net: phy: marvell: implement config_inband() method
Implement the config_inband() method for Marvell 88E1112, 88E1111,
and Finisar's 88E1111 variant.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUrz-006IUO-3r@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/marvell.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
--- a/drivers/net/phy/marvell.c
+++ b/drivers/net/phy/marvell.c
@@ -687,6 +687,34 @@ static unsigned int m88e1111_inband_caps
return 0;
}
+static int m88e1111_config_inband(struct phy_device *phydev, unsigned int modes)
+{
+ u16 extsr, bmcr;
+ int err;
+
+ if (phydev->interface != PHY_INTERFACE_MODE_1000BASEX &&
+ phydev->interface != PHY_INTERFACE_MODE_SGMII)
+ return -EINVAL;
+
+ if (modes == LINK_INBAND_BYPASS)
+ extsr = MII_M1111_HWCFG_SERIAL_AN_BYPASS;
+ else
+ extsr = 0;
+
+ if (modes == LINK_INBAND_DISABLE)
+ bmcr = 0;
+ else
+ bmcr = BMCR_ANENABLE;
+
+ err = phy_modify(phydev, MII_M1111_PHY_EXT_SR,
+ MII_M1111_HWCFG_SERIAL_AN_BYPASS, extsr);
+ if (err < 0)
+ return extsr;
+
+ return phy_modify_paged(phydev, MII_MARVELL_FIBER_PAGE, MII_BMCR,
+ BMCR_ANENABLE, bmcr);
+}
+
static int m88e1111_config_aneg(struct phy_device *phydev)
{
int extsr = phy_read(phydev, MII_M1111_PHY_EXT_SR);
@@ -3307,6 +3335,7 @@ static struct phy_driver marvell_drivers
/* PHY_GBIT_FEATURES */
.probe = marvell_probe,
.inband_caps = m88e1111_inband_caps,
+ .config_inband = m88e1111_config_inband,
.config_init = m88e1112_config_init,
.config_aneg = marvell_config_aneg,
.config_intr = marvell_config_intr,
@@ -3328,6 +3357,7 @@ static struct phy_driver marvell_drivers
/* PHY_GBIT_FEATURES */
.probe = marvell_probe,
.inband_caps = m88e1111_inband_caps,
+ .config_inband = m88e1111_config_inband,
.config_init = m88e1111gbe_config_init,
.config_aneg = m88e1111_config_aneg,
.read_status = marvell_read_status,
@@ -3350,6 +3380,7 @@ static struct phy_driver marvell_drivers
/* PHY_GBIT_FEATURES */
.probe = marvell_probe,
.inband_caps = m88e1111_inband_caps,
+ .config_inband = m88e1111_config_inband,
.config_init = m88e1111gbe_config_init,
.config_aneg = m88e1111_config_aneg,
.read_status = marvell_read_status,

159
target/linux/generic/backport-6.6/606-09-v6.14-net-phylink-add-pcs_inband_caps-method.patch Normal file
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@ -0,0 +1,159 @@
From df874f9e52c340cc6f0a0014a97b778f67d46849 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:28 +0000
Subject: [PATCH 09/13] net: phylink: add pcs_inband_caps() method
Add a pcs_inband_caps() method to query the PCS for its inband link
capabilities, and use this to determine whether link modes used with
optical SFPs can be supported.
When a PCS does not provide a method, we allow inband negotiation to
be either on or off, making this a no-op until the pcs_inband_caps()
method is implemented by a PCS driver.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUs4-006IUU-7K@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 60 +++++++++++++++++++++++++++++++++++++++
include/linux/phylink.h | 17 +++++++++++
2 files changed, 77 insertions(+)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1038,6 +1038,15 @@ static void phylink_resolve_an_pause(str
}
}
+static unsigned int phylink_pcs_inband_caps(struct phylink_pcs *pcs,
+ phy_interface_t interface)
+{
+ if (pcs && pcs->ops->pcs_inband_caps)
+ return pcs->ops->pcs_inband_caps(pcs, interface);
+
+ return 0;
+}
+
static void phylink_pcs_pre_config(struct phylink_pcs *pcs,
phy_interface_t interface)
{
@@ -1091,6 +1100,24 @@ static void phylink_pcs_link_up(struct p
pcs->ops->pcs_link_up(pcs, neg_mode, interface, speed, duplex);
}
+/* Query inband for a specific interface mode, asking the MAC for the
+ * PCS which will be used to handle the interface mode.
+ */
+static unsigned int phylink_inband_caps(struct phylink *pl,
+ phy_interface_t interface)
+{
+ struct phylink_pcs *pcs;
+
+ if (!pl->mac_ops->mac_select_pcs)
+ return 0;
+
+ pcs = pl->mac_ops->mac_select_pcs(pl->config, interface);
+ if (!pcs)
+ return 0;
+
+ return phylink_pcs_inband_caps(pcs, interface);
+}
+
static void phylink_pcs_poll_stop(struct phylink *pl)
{
if (pl->cfg_link_an_mode == MLO_AN_INBAND)
@@ -2443,6 +2470,26 @@ int phylink_ethtool_ksettings_get(struct
}
EXPORT_SYMBOL_GPL(phylink_ethtool_ksettings_get);
+static bool phylink_validate_pcs_inband_autoneg(struct phylink *pl,
+ phy_interface_t interface,
+ unsigned long *adv)
+{
+ unsigned int inband = phylink_inband_caps(pl, interface);
+ unsigned int mask;
+
+ /* If the PCS doesn't implement inband support, be permissive. */
+ if (!inband)
+ return true;
+
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT, adv))
+ mask = LINK_INBAND_ENABLE;
+ else
+ mask = LINK_INBAND_DISABLE;
+
+ /* Check whether the PCS implements the required mode */
+ return !!(inband & mask);
+}
+
/**
* phylink_ethtool_ksettings_set() - set the link settings
* @pl: a pointer to a &struct phylink returned from phylink_create()
@@ -2578,6 +2625,13 @@ int phylink_ethtool_ksettings_set(struct
phylink_is_empty_linkmode(config.advertising))
return -EINVAL;
+ /* Validate the autonegotiation state. We don't have a PHY in this
+ * situation, so the PCS is the media-facing entity.
+ */
+ if (!phylink_validate_pcs_inband_autoneg(pl, config.interface,
+ config.advertising))
+ return -EINVAL;
+
mutex_lock(&pl->state_mutex);
pl->link_config.speed = config.speed;
pl->link_config.duplex = config.duplex;
@@ -3274,6 +3328,12 @@ static int phylink_sfp_config_optical(st
phylink_dbg(pl, "optical SFP: chosen %s interface\n",
phy_modes(interface));
+ if (!phylink_validate_pcs_inband_autoneg(pl, interface,
+ config.advertising)) {
+ phylink_err(pl, "autoneg setting not compatible with PCS");
+ return -EINVAL;
+ }
+
config.interface = interface;
/* Ignore errors if we're expecting a PHY to attach later */
--- a/include/linux/phylink.h
+++ b/include/linux/phylink.h
@@ -432,6 +432,7 @@ struct phylink_pcs {
/**
* struct phylink_pcs_ops - MAC PCS operations structure.
* @pcs_validate: validate the link configuration.
+ * @pcs_inband_caps: query inband support for interface mode.
* @pcs_enable: enable the PCS.
* @pcs_disable: disable the PCS.
* @pcs_pre_config: pre-mac_config method (for errata)
@@ -445,6 +446,8 @@ struct phylink_pcs {
struct phylink_pcs_ops {
int (*pcs_validate)(struct phylink_pcs *pcs, unsigned long *supported,
const struct phylink_link_state *state);
+ unsigned int (*pcs_inband_caps)(struct phylink_pcs *pcs,
+ phy_interface_t interface);
int (*pcs_enable)(struct phylink_pcs *pcs);
void (*pcs_disable)(struct phylink_pcs *pcs);
void (*pcs_pre_config)(struct phylink_pcs *pcs,
@@ -481,6 +484,20 @@ int pcs_validate(struct phylink_pcs *pcs
const struct phylink_link_state *state);
/**
+ * pcs_inband_caps - query PCS in-band capabilities for interface mode.
+ * @pcs: a pointer to a &struct phylink_pcs.
+ * @interface: interface mode to be queried
+ *
+ * Returns zero if it is unknown what in-band signalling is supported by the
+ * PHY (e.g. because the PHY driver doesn't implement the method.) Otherwise,
+ * returns a bit mask of the LINK_INBAND_* values from
+ * &enum link_inband_signalling to describe which inband modes are supported
+ * for this interface mode.
+ */
+unsigned int pcs_inband_caps(struct phylink_pcs *pcs,
+ phy_interface_t interface);
+
+/**
* pcs_enable() - enable the PCS.
* @pcs: a pointer to a &struct phylink_pcs.
*/

64
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@ -0,0 +1,64 @@
From 513e8fb8fa32035b3325e2e14fb9598f8cb545e9 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:33 +0000
Subject: [PATCH 10/13] net: mvneta: implement pcs_inband_caps() method
Report the PCS in-band capabilities to phylink for Marvell NETA
interfaces.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUs9-006IUb-Au@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/ethernet/marvell/mvneta.c | 27 +++++++++++++++++----------
1 file changed, 17 insertions(+), 10 deletions(-)
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -3959,20 +3959,27 @@ static struct mvneta_port *mvneta_pcs_to
return container_of(pcs, struct mvneta_port, phylink_pcs);
}
-static int mvneta_pcs_validate(struct phylink_pcs *pcs,
- unsigned long *supported,
- const struct phylink_link_state *state)
+static unsigned int mvneta_pcs_inband_caps(struct phylink_pcs *pcs,
+ phy_interface_t interface)
{
- /* We only support QSGMII, SGMII, 802.3z and RGMII modes.
- * When in 802.3z mode, we must have AN enabled:
+ /* When operating in an 802.3z mode, we must have AN enabled:
* "Bit 2 Field InBandAnEn In-band Auto-Negotiation enable. ...
* When <PortType> = 1 (1000BASE-X) this field must be set to 1."
+ * Therefore, inband is "required".
*/
- if (phy_interface_mode_is_8023z(state->interface) &&
- !phylink_test(state->advertising, Autoneg))
- return -EINVAL;
+ if (phy_interface_mode_is_8023z(interface))
+ return LINK_INBAND_ENABLE;
- return 0;
+ /* QSGMII, SGMII and RGMII can be configured to use inband
+ * signalling of the AN result. Indicate these as "possible".
+ */
+ if (interface == PHY_INTERFACE_MODE_SGMII ||
+ interface == PHY_INTERFACE_MODE_QSGMII ||
+ phy_interface_mode_is_rgmii(interface))
+ return LINK_INBAND_DISABLE | LINK_INBAND_ENABLE;
+
+ /* For any other modes, indicate that inband is not supported. */
+ return LINK_INBAND_DISABLE;
}
static void mvneta_pcs_get_state(struct phylink_pcs *pcs,
@@ -4070,7 +4077,7 @@ static void mvneta_pcs_an_restart(struct
}
static const struct phylink_pcs_ops mvneta_phylink_pcs_ops = {
- .pcs_validate = mvneta_pcs_validate,
+ .pcs_inband_caps = mvneta_pcs_inband_caps,
.pcs_get_state = mvneta_pcs_get_state,
.pcs_config = mvneta_pcs_config,
.pcs_an_restart = mvneta_pcs_an_restart,

62
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@ -0,0 +1,62 @@
From d4169f0c7665afb8d8adb5e1b1df3db88517d0ad Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:38 +0000
Subject: [PATCH 11/13] net: mvpp2: implement pcs_inband_caps() method
Report the PCS in-band capabilities to phylink for Marvell PP2
interfaces.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUsE-006IUh-E7@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
.../net/ethernet/marvell/mvpp2/mvpp2_main.c | 25 ++++++++++++-------
1 file changed, 16 insertions(+), 9 deletions(-)
--- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
+++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
@@ -6214,19 +6214,26 @@ static const struct phylink_pcs_ops mvpp
.pcs_config = mvpp2_xlg_pcs_config,
};
-static int mvpp2_gmac_pcs_validate(struct phylink_pcs *pcs,
- unsigned long *supported,
- const struct phylink_link_state *state)
+static unsigned int mvpp2_gmac_pcs_inband_caps(struct phylink_pcs *pcs,
+ phy_interface_t interface)
{
- /* When in 802.3z mode, we must have AN enabled:
+ /* When operating in an 802.3z mode, we must have AN enabled:
* Bit 2 Field InBandAnEn In-band Auto-Negotiation enable. ...
* When <PortType> = 1 (1000BASE-X) this field must be set to 1.
+ * Therefore, inband is "required".
*/
- if (phy_interface_mode_is_8023z(state->interface) &&
- !phylink_test(state->advertising, Autoneg))
- return -EINVAL;
+ if (phy_interface_mode_is_8023z(interface))
+ return LINK_INBAND_ENABLE;
- return 0;
+ /* SGMII and RGMII can be configured to use inband signalling of the
+ * AN result. Indicate these as "possible".
+ */
+ if (interface == PHY_INTERFACE_MODE_SGMII ||
+ phy_interface_mode_is_rgmii(interface))
+ return LINK_INBAND_DISABLE | LINK_INBAND_ENABLE;
+
+ /* For any other modes, indicate that inband is not supported. */
+ return LINK_INBAND_DISABLE;
}
static void mvpp2_gmac_pcs_get_state(struct phylink_pcs *pcs,
@@ -6333,7 +6340,7 @@ static void mvpp2_gmac_pcs_an_restart(st
}
static const struct phylink_pcs_ops mvpp2_phylink_gmac_pcs_ops = {
- .pcs_validate = mvpp2_gmac_pcs_validate,
+ .pcs_inband_caps = mvpp2_gmac_pcs_inband_caps,
.pcs_get_state = mvpp2_gmac_pcs_get_state,
.pcs_config = mvpp2_gmac_pcs_config,
.pcs_an_restart = mvpp2_gmac_pcs_an_restart,

228
target/linux/generic/backport-6.6/606-12-v6.14-net-phylink-add-negotiation-of-in-band-capabilities.patch Normal file
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@ -0,0 +1,228 @@
From 5fd0f1a02e750e2db4038dee60edea669ce5aab1 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:43 +0000
Subject: [PATCH 12/13] net: phylink: add negotiation of in-band capabilities
Support for in-band signalling with Serdes links is uncertain. Some
PHYs do not support in-band for e.g. SGMII. Some PCS do not support
in-band for 2500Base-X. Some PCS require in-band for Base-X protocols.
Simply using what is in DT is insufficient when we have hot-pluggable
PHYs e.g. in the form of SFP modules, which may not provide the
in-band signalling.
In order to address this, we have introduced phy_inband_caps() and
pcs_inband_caps() functions to allow phylink to retrieve the
capabilities from each end of the PCS/PHY link. This commit adds code
to resolve whether in-band will be used in the various scenarios that
we have: In-band not being used, PHY present using SGMII or Base-X,
PHY not present. We also deal with no capabilties provided.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUsJ-006IUn-H3@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 154 +++++++++++++++++++++++++++++++++++---
1 file changed, 144 insertions(+), 10 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -75,6 +75,7 @@ struct phylink {
struct mutex state_mutex;
struct phylink_link_state phy_state;
+ unsigned int phy_ib_mode;
struct work_struct resolve;
unsigned int pcs_neg_mode;
unsigned int pcs_state;
@@ -1186,10 +1187,18 @@ static void phylink_pcs_neg_mode(struct
phy_interface_t interface,
const unsigned long *advertising)
{
+ unsigned int pcs_ib_caps = 0;
+ unsigned int phy_ib_caps = 0;
unsigned int neg_mode, mode;
+ enum {
+ INBAND_CISCO_SGMII,
+ INBAND_BASEX,
+ } type;
mode = pl->req_link_an_mode;
+ pl->phy_ib_mode = 0;
+
switch (interface) {
case PHY_INTERFACE_MODE_SGMII:
case PHY_INTERFACE_MODE_QSGMII:
@@ -1200,10 +1209,7 @@ static void phylink_pcs_neg_mode(struct
* inband communication. Note: there exist PHYs that run
* with SGMII but do not send the inband data.
*/
- if (!phylink_autoneg_inband(mode))
- neg_mode = PHYLINK_PCS_NEG_OUTBAND;
- else
- neg_mode = PHYLINK_PCS_NEG_INBAND_ENABLED;
+ type = INBAND_CISCO_SGMII;
break;
case PHY_INTERFACE_MODE_1000BASEX:
@@ -1214,18 +1220,139 @@ static void phylink_pcs_neg_mode(struct
* as well, but drivers may not support this, so may
* need to override this.
*/
- if (!phylink_autoneg_inband(mode))
+ type = INBAND_BASEX;
+ break;
+
+ default:
+ pl->pcs_neg_mode = PHYLINK_PCS_NEG_NONE;
+ pl->act_link_an_mode = mode;
+ return;
+ }
+
+ if (pcs)
+ pcs_ib_caps = phylink_pcs_inband_caps(pcs, interface);
+
+ if (pl->phydev)
+ phy_ib_caps = phy_inband_caps(pl->phydev, interface);
+
+ phylink_dbg(pl, "interface %s inband modes: pcs=%02x phy=%02x\n",
+ phy_modes(interface), pcs_ib_caps, phy_ib_caps);
+
+ if (!phylink_autoneg_inband(mode)) {
+ bool pcs_ib_only = false;
+ bool phy_ib_only = false;
+
+ if (pcs_ib_caps && pcs_ib_caps != LINK_INBAND_DISABLE) {
+ /* PCS supports reporting in-band capabilities, and
+ * supports more than disable mode.
+ */
+ if (pcs_ib_caps & LINK_INBAND_DISABLE)
+ neg_mode = PHYLINK_PCS_NEG_OUTBAND;
+ else if (pcs_ib_caps & LINK_INBAND_ENABLE)
+ pcs_ib_only = true;
+ }
+
+ if (phy_ib_caps && phy_ib_caps != LINK_INBAND_DISABLE) {
+ /* PHY supports in-band capabilities, and supports
+ * more than disable mode.
+ */
+ if (phy_ib_caps & LINK_INBAND_DISABLE)
+ pl->phy_ib_mode = LINK_INBAND_DISABLE;
+ else if (phy_ib_caps & LINK_INBAND_BYPASS)
+ pl->phy_ib_mode = LINK_INBAND_BYPASS;
+ else if (phy_ib_caps & LINK_INBAND_ENABLE)
+ phy_ib_only = true;
+ }
+
+ /* If either the PCS or PHY requires inband to be enabled,
+ * this is an invalid configuration. Provide a diagnostic
+ * message for this case, but don't try to force the issue.
+ */
+ if (pcs_ib_only || phy_ib_only)
+ phylink_warn(pl,
+ "firmware wants %s mode, but %s%s%s requires inband\n",
+ phylink_an_mode_str(mode),
+ pcs_ib_only ? "PCS" : "",
+ pcs_ib_only && phy_ib_only ? " and " : "",
+ phy_ib_only ? "PHY" : "");
+
+ neg_mode = PHYLINK_PCS_NEG_OUTBAND;
+ } else if (type == INBAND_CISCO_SGMII || pl->phydev) {
+ /* For SGMII modes which are designed to be used with PHYs, or
+ * Base-X with a PHY, we try to use in-band mode where-ever
+ * possible. However, there are some PHYs e.g. BCM84881 which
+ * do not support in-band.
+ */
+ const unsigned int inband_ok = LINK_INBAND_ENABLE |
+ LINK_INBAND_BYPASS;
+ const unsigned int outband_ok = LINK_INBAND_DISABLE |
+ LINK_INBAND_BYPASS;
+ /* PCS PHY
+ * D E D E
+ * 0 0 0 0 no information inband enabled
+ * 1 0 0 0 pcs doesn't support outband
+ * 0 1 0 0 pcs required inband enabled
+ * 1 1 0 0 pcs optional inband enabled
+ * 0 0 1 0 phy doesn't support outband
+ * 1 0 1 0 pcs+phy doesn't support outband
+ * 0 1 1 0 pcs required, phy doesn't support, invalid
+ * 1 1 1 0 pcs optional, phy doesn't support, outband
+ * 0 0 0 1 phy required inband enabled
+ * 1 0 0 1 pcs doesn't support, phy required, invalid
+ * 0 1 0 1 pcs+phy required inband enabled
+ * 1 1 0 1 pcs optional, phy required inband enabled
+ * 0 0 1 1 phy optional inband enabled
+ * 1 0 1 1 pcs doesn't support, phy optional, outband
+ * 0 1 1 1 pcs required, phy optional inband enabled
+ * 1 1 1 1 pcs+phy optional inband enabled
+ */
+ if ((!pcs_ib_caps || pcs_ib_caps & inband_ok) &&
+ (!phy_ib_caps || phy_ib_caps & inband_ok)) {
+ /* In-band supported or unknown at both ends. Enable
+ * in-band mode with or without bypass at the PHY.
+ */
+ if (phy_ib_caps & LINK_INBAND_ENABLE)
+ pl->phy_ib_mode = LINK_INBAND_ENABLE;
+ else if (phy_ib_caps & LINK_INBAND_BYPASS)
+ pl->phy_ib_mode = LINK_INBAND_BYPASS;
+
+ neg_mode = PHYLINK_PCS_NEG_INBAND_ENABLED;
+ } else if ((!pcs_ib_caps || pcs_ib_caps & outband_ok) &&
+ (!phy_ib_caps || phy_ib_caps & outband_ok)) {
+ /* Either in-band not supported at at least one end.
+ * In-band bypass at the other end is possible.
+ */
+ if (phy_ib_caps & LINK_INBAND_DISABLE)
+ pl->phy_ib_mode = LINK_INBAND_DISABLE;
+ else if (phy_ib_caps & LINK_INBAND_BYPASS)
+ pl->phy_ib_mode = LINK_INBAND_BYPASS;
+
neg_mode = PHYLINK_PCS_NEG_OUTBAND;
+ if (pl->phydev)
+ mode = MLO_AN_PHY;
+ } else {
+ /* invalid */
+ phylink_warn(pl, "%s: incompatible in-band capabilities, trying in-band",
+ phy_modes(interface));
+ neg_mode = PHYLINK_PCS_NEG_INBAND_ENABLED;
+ }
+ } else {
+ /* For Base-X without a PHY */
+ if (pcs_ib_caps == LINK_INBAND_DISABLE)
+ /* If the PCS doesn't support inband, then inband must
+ * be disabled.
+ */
+ neg_mode = PHYLINK_PCS_NEG_INBAND_DISABLED;
+ else if (pcs_ib_caps == LINK_INBAND_ENABLE)
+ /* If the PCS requires inband, then inband must always
+ * be enabled.
+ */
+ neg_mode = PHYLINK_PCS_NEG_INBAND_ENABLED;
else if (linkmode_test_bit(ETHTOOL_LINK_MODE_Autoneg_BIT,
advertising))
neg_mode = PHYLINK_PCS_NEG_INBAND_ENABLED;
else
neg_mode = PHYLINK_PCS_NEG_INBAND_DISABLED;
- break;
-
- default:
- neg_mode = PHYLINK_PCS_NEG_NONE;
- break;
}
pl->pcs_neg_mode = neg_mode;
@@ -1324,6 +1451,13 @@ static void phylink_major_config(struct
ERR_PTR(err));
}
+ if (pl->phydev && pl->phy_ib_mode) {
+ err = phy_config_inband(pl->phydev, pl->phy_ib_mode);
+ if (err < 0)
+ phylink_err(pl, "phy_config_inband: %pe\n",
+ ERR_PTR(err));
+ }
+
if (pl->sfp_bus) {
rate_kbd = phylink_interface_signal_rate(state->interface);
if (rate_kbd)

110
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@ -0,0 +1,110 @@
From 77ac9a8b2536e0eaca6c6f21070068458bf55981 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Tue, 3 Dec 2024 15:31:48 +0000
Subject: [PATCH 13/13] net: phylink: remove phylink_phy_no_inband()
Remove phylink_phy_no_inband() now that we are handling the lack of
inband negotiation by querying the capabilities of the PHY and PCS,
and the BCM84881 PHY driver provides us the information necessary to
make the decision.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tIUsO-006IUt-KN@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/phy/phylink.c | 27 ++++++---------------------
1 file changed, 6 insertions(+), 21 deletions(-)
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -3320,10 +3320,11 @@ static phy_interface_t phylink_choose_sf
return interface;
}
-static void phylink_sfp_set_config(struct phylink *pl, u8 mode,
+static void phylink_sfp_set_config(struct phylink *pl,
unsigned long *supported,
struct phylink_link_state *state)
{
+ u8 mode = MLO_AN_INBAND;
bool changed = false;
phylink_dbg(pl, "requesting link mode %s/%s with support %*pb\n",
@@ -3357,8 +3358,7 @@ static void phylink_sfp_set_config(struc
phylink_mac_initial_config(pl, false);
}
-static int phylink_sfp_config_phy(struct phylink *pl, u8 mode,
- struct phy_device *phy)
+static int phylink_sfp_config_phy(struct phylink *pl, struct phy_device *phy)
{
__ETHTOOL_DECLARE_LINK_MODE_MASK(support1);
__ETHTOOL_DECLARE_LINK_MODE_MASK(support);
@@ -3398,7 +3398,7 @@ static int phylink_sfp_config_phy(struct
if (ret) {
phylink_err(pl,
"validation of %s/%s with support %*pb failed: %pe\n",
- phylink_an_mode_str(mode),
+ phylink_an_mode_str(pl->req_link_an_mode),
phy_modes(config.interface),
__ETHTOOL_LINK_MODE_MASK_NBITS, support,
ERR_PTR(ret));
@@ -3407,7 +3407,7 @@ static int phylink_sfp_config_phy(struct
pl->link_port = pl->sfp_port;
- phylink_sfp_set_config(pl, mode, support, &config);
+ phylink_sfp_set_config(pl, support, &config);
return 0;
}
@@ -3481,7 +3481,7 @@ static int phylink_sfp_config_optical(st
pl->link_port = pl->sfp_port;
- phylink_sfp_set_config(pl, MLO_AN_INBAND, pl->sfp_support, &config);
+ phylink_sfp_set_config(pl, pl->sfp_support, &config);
return 0;
}
@@ -3552,20 +3552,10 @@ static void phylink_sfp_link_up(void *up
phylink_enable_and_run_resolve(pl, PHYLINK_DISABLE_LINK);
}
-/* The Broadcom BCM84881 in the Methode DM7052 is unable to provide a SGMII
- * or 802.3z control word, so inband will not work.
- */
-static bool phylink_phy_no_inband(struct phy_device *phy)
-{
- return phy->is_c45 && phy_id_compare(phy->c45_ids.device_ids[1],
- 0xae025150, 0xfffffff0);
-}
-
static int phylink_sfp_connect_phy(void *upstream, struct phy_device *phy)
{
struct phylink *pl = upstream;
phy_interface_t interface;
- u8 mode;
int ret;
/*
@@ -3577,17 +3567,12 @@ static int phylink_sfp_connect_phy(void
*/
phy_support_asym_pause(phy);
- if (phylink_phy_no_inband(phy))
- mode = MLO_AN_PHY;
- else
- mode = MLO_AN_INBAND;
-
/* Set the PHY's host supported interfaces */
phy_interface_and(phy->host_interfaces, phylink_sfp_interfaces,
pl->config->supported_interfaces);
/* Do the initial configuration */
- ret = phylink_sfp_config_phy(pl, mode, phy);
+ ret = phylink_sfp_config_phy(pl, phy);
if (ret < 0)
return ret;

53
target/linux/generic/backport-6.6/607-01-v6.14-net-pcs-pcs-lynx-implement-pcs_inband_caps-method.patch Normal file
View File

@ -0,0 +1,53 @@
From 6561f0e547be221f411fda5eddfcc5bd8bb058a5 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Thu, 5 Dec 2024 09:42:24 +0000
Subject: [PATCH 1/3] net: pcs: pcs-lynx: implement pcs_inband_caps() method
Report the PCS in-band capabilities to phylink for the Lynx PCS.
Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tJ8NM-006L5J-AH@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/pcs/pcs-lynx.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
--- a/drivers/net/pcs/pcs-lynx.c
+++ b/drivers/net/pcs/pcs-lynx.c
@@ -35,6 +35,27 @@ enum sgmii_speed {
#define phylink_pcs_to_lynx(pl_pcs) container_of((pl_pcs), struct lynx_pcs, pcs)
#define lynx_to_phylink_pcs(lynx) (&(lynx)->pcs)
+static unsigned int lynx_pcs_inband_caps(struct phylink_pcs *pcs,
+ phy_interface_t interface)
+{
+ switch (interface) {
+ case PHY_INTERFACE_MODE_1000BASEX:
+ case PHY_INTERFACE_MODE_SGMII:
+ case PHY_INTERFACE_MODE_QSGMII:
+ return LINK_INBAND_DISABLE | LINK_INBAND_ENABLE;
+
+ case PHY_INTERFACE_MODE_10GBASER:
+ case PHY_INTERFACE_MODE_2500BASEX:
+ return LINK_INBAND_DISABLE;
+
+ case PHY_INTERFACE_MODE_USXGMII:
+ return LINK_INBAND_ENABLE;
+
+ default:
+ return 0;
+ }
+}
+
static void lynx_pcs_get_state_usxgmii(struct mdio_device *pcs,
struct phylink_link_state *state)
{
@@ -307,6 +328,7 @@ static void lynx_pcs_link_up(struct phyl
}
static const struct phylink_pcs_ops lynx_pcs_phylink_ops = {
+ .pcs_inband_caps = lynx_pcs_inband_caps,
.pcs_get_state = lynx_pcs_get_state,
.pcs_config = lynx_pcs_config,
.pcs_an_restart = lynx_pcs_an_restart,

47
target/linux/generic/backport-6.6/607-02-v6.14-net-pcs-pcs-mtk-lynxi-implement-pcs_inband_caps-meth.patch Normal file
View File

@ -0,0 +1,47 @@
From 520d29bdda86915b3caf8c72825a574bff212553 Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Thu, 5 Dec 2024 09:42:29 +0000
Subject: [PATCH 2/3] net: pcs: pcs-mtk-lynxi: implement pcs_inband_caps()
method
Report the PCS in-band capabilities to phylink for the LynxI PCS.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tJ8NR-006L5P-E3@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/pcs/pcs-mtk-lynxi.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
--- a/drivers/net/pcs/pcs-mtk-lynxi.c
+++ b/drivers/net/pcs/pcs-mtk-lynxi.c
@@ -88,6 +88,21 @@ static struct mtk_pcs_lynxi *pcs_to_mtk_
return container_of(pcs, struct mtk_pcs_lynxi, pcs);
}
+static unsigned int mtk_pcs_lynxi_inband_caps(struct phylink_pcs *pcs,
+ phy_interface_t interface)
+{
+ switch (interface) {
+ case PHY_INTERFACE_MODE_1000BASEX:
+ case PHY_INTERFACE_MODE_2500BASEX:
+ case PHY_INTERFACE_MODE_SGMII:
+ case PHY_INTERFACE_MODE_QSGMII:
+ return LINK_INBAND_DISABLE | LINK_INBAND_ENABLE;
+
+ default:
+ return 0;
+ }
+}
+
static void mtk_pcs_lynxi_get_state(struct phylink_pcs *pcs,
struct phylink_link_state *state)
{
@@ -241,6 +256,7 @@ static void mtk_pcs_lynxi_disable(struct
}
static const struct phylink_pcs_ops mtk_pcs_lynxi_ops = {
+ .pcs_inband_caps = mtk_pcs_lynxi_inband_caps,
.pcs_get_state = mtk_pcs_lynxi_get_state,
.pcs_config = mtk_pcs_lynxi_config,
.pcs_an_restart = mtk_pcs_lynxi_restart_an,

58
target/linux/generic/backport-6.6/607-03-v6.14-net-pcs-xpcs-implement-pcs_inband_caps-method.patch Normal file
View File

@ -0,0 +1,58 @@
From 484d0170d6c6bbb5213d037664e9a551f793bacd Mon Sep 17 00:00:00 2001
From: "Russell King (Oracle)" <rmk+kernel@armlinux.org.uk>
Date: Thu, 5 Dec 2024 09:42:34 +0000
Subject: [PATCH 3/3] net: pcs: xpcs: implement pcs_inband_caps() method
Report the PCS inband capabilities to phylink for XPCS.
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1tJ8NW-006L5V-I9@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
drivers/net/pcs/pcs-xpcs.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
--- a/drivers/net/pcs/pcs-xpcs.c
+++ b/drivers/net/pcs/pcs-xpcs.c
@@ -628,6 +628,33 @@ static int xpcs_validate(struct phylink_
return 0;
}
+static unsigned int xpcs_inband_caps(struct phylink_pcs *pcs,
+ phy_interface_t interface)
+{
+ struct dw_xpcs *xpcs = phylink_pcs_to_xpcs(pcs);
+ const struct xpcs_compat *compat;
+
+ compat = xpcs_find_compat(xpcs->id, interface);
+ if (!compat)
+ return 0;
+
+ switch (compat->an_mode) {
+ case DW_AN_C73:
+ return LINK_INBAND_ENABLE;
+
+ case DW_AN_C37_SGMII:
+ case DW_AN_C37_1000BASEX:
+ return LINK_INBAND_DISABLE | LINK_INBAND_ENABLE;
+
+ case DW_10GBASER:
+ case DW_2500BASEX:
+ return LINK_INBAND_DISABLE;
+
+ default:
+ return 0;
+ }
+}
+
void xpcs_get_interfaces(struct dw_xpcs *xpcs, unsigned long *interfaces)
{
int i, j;
@@ -1331,6 +1358,7 @@ static const struct xpcs_id xpcs_id_list
static const struct phylink_pcs_ops xpcs_phylink_ops = {
.pcs_validate = xpcs_validate,
+ .pcs_inband_caps = xpcs_inband_caps,
.pcs_config = xpcs_config,
.pcs_get_state = xpcs_get_state,
.pcs_an_restart = xpcs_an_restart,

4
target/linux/generic/backport-6.6/714-v6.8-02-net-phy-extend-PHY-package-API-to-support-multiple-g.patch
View File

@ -242,7 +242,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
refcount_t refcnt;
unsigned long flags;
size_t priv_size;
@@ -1966,10 +1967,10 @@ int phy_ethtool_get_link_ksettings(struc
@@ -2000,10 +2001,10 @@ int phy_ethtool_get_link_ksettings(struc
int phy_ethtool_set_link_ksettings(struct net_device *ndev,
const struct ethtool_link_ksettings *cmd);
int phy_ethtool_nway_reset(struct net_device *ndev);
@ -255,7 +255,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
int __init mdio_bus_init(void);
void mdio_bus_exit(void);
@@ -1992,46 +1993,65 @@ int __phy_hwtstamp_set(struct phy_device
@@ -2026,46 +2027,65 @@ int __phy_hwtstamp_set(struct phy_device
struct kernel_hwtstamp_config *config,
struct netlink_ext_ack *extack);

2
target/linux/generic/backport-6.6/714-v6.8-04-net-phy-add-support-for-PHY-package-MMD-read-write.patch
View File

@ -171,7 +171,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
* @regnum: register number to modify
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -2054,6 +2054,22 @@ static inline int __phy_package_write(st
@@ -2088,6 +2088,22 @@ static inline int __phy_package_write(st
return __mdiobus_write(phydev->mdio.bus, addr, regnum, val);
}

2
target/linux/generic/backport-6.6/716-v6.9-03-net-phy-add-devm-of_phy_package_join-helper.patch
View File

@ -170,7 +170,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
refcount_t refcnt;
unsigned long flags;
size_t priv_size;
@@ -1968,9 +1971,12 @@ int phy_ethtool_set_link_ksettings(struc
@@ -2002,9 +2005,12 @@ int phy_ethtool_set_link_ksettings(struc
const struct ethtool_link_ksettings *cmd);
int phy_ethtool_nway_reset(struct net_device *ndev);
int phy_package_join(struct phy_device *phydev, int base_addr, size_t priv_size);

2
target/linux/generic/backport-6.6/716-v6.9-06-net-phy-provide-whether-link-has-changed-in-c37_read.patch
View File

@ -89,7 +89,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
}
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -1846,7 +1846,7 @@ int genphy_write_mmd_unsupported(struct
@@ -1880,7 +1880,7 @@ int genphy_write_mmd_unsupported(struct
/* Clause 37 */
int genphy_c37_config_aneg(struct phy_device *phydev);

2
target/linux/generic/backport-6.6/782-01-v6.16-net-phy-pass-PHY-driver-to-.match_phy_device-OP.patch
View File

@ -261,7 +261,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
}
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -972,7 +972,8 @@ struct phy_driver {
@@ -1003,7 +1003,8 @@ struct phy_driver {
* driver for the given phydev. If NULL, matching is based on
* phy_id and phy_id_mask.
*/

2
target/linux/generic/backport-6.6/782-04-v6.16-net-phy-introduce-genphy_match_phy_device.patch
View File

@ -97,7 +97,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
static ssize_t
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -1812,6 +1812,9 @@ char *phy_attached_info_irq(struct phy_d
@@ -1846,6 +1846,9 @@ char *phy_attached_info_irq(struct phy_d
__malloc;
void phy_attached_info(struct phy_device *phydev);

4
target/linux/generic/backport-6.6/835-v6.9-net-phy-add-support-for-PHY-LEDs-polarity-modes.patch
View File

@ -60,7 +60,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
cdev->brightness_set_blocking = phy_led_set_brightness;
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -867,6 +867,15 @@ struct phy_led {
@@ -885,6 +885,15 @@ struct phy_led {
#define to_phy_led(d) container_of(d, struct phy_led, led_cdev)
@ -76,7 +76,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
/**
* struct phy_driver - Driver structure for a particular PHY type
*
@@ -1144,6 +1153,19 @@ struct phy_driver {
@@ -1175,6 +1184,19 @@ struct phy_driver {
int (*led_hw_control_get)(struct phy_device *dev, u8 index,
unsigned long *rules);

2
target/linux/generic/backport-6.6/841-v6.13-net-phy-support-active-high-property-for-PHY-LEDs.patch
View File

@ -39,7 +39,7 @@ Signed-off-by: Paolo Abeni <pabeni@redhat.com>
if (!phydev->drv->led_polarity_set)
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -869,8 +869,9 @@ struct phy_led {
@@ -887,8 +887,9 @@ struct phy_led {
/* Modes for PHY LED configuration */
enum phy_led_modes {

2
target/linux/generic/backport-6.6/895-02-v6.8-net-phylink-use-for_each_set_bit.patch
View File

@ -17,7 +17,7 @@ Signed-off-by: Paolo Abeni <pabeni@redhat.com>
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -712,18 +712,16 @@ static int phylink_validate_mask(struct
@@ -732,18 +732,16 @@ static int phylink_validate_mask(struct
__ETHTOOL_DECLARE_LINK_MODE_MASK(all_s) = { 0, };
__ETHTOOL_DECLARE_LINK_MODE_MASK(s);
struct phylink_link_state t;

2
target/linux/generic/backport-6.6/895-03-v6.8-net-phylink-split-out-per-interface-validation.patch
View File

@ -17,7 +17,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -704,26 +704,44 @@ static int phylink_validate_mac_and_pcs(
@@ -724,26 +724,44 @@ static int phylink_validate_mac_and_pcs(
return phylink_is_empty_linkmode(supported) ? -EINVAL : 0;
}

6
target/linux/generic/backport-6.6/895-04-v6.8-net-phylink-pass-PHY-into-phylink_validate_one.patch
View File

@ -17,7 +17,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -704,7 +704,7 @@ static int phylink_validate_mac_and_pcs(
@@ -724,7 +724,7 @@ static int phylink_validate_mac_and_pcs(
return phylink_is_empty_linkmode(supported) ? -EINVAL : 0;
}
@ -26,7 +26,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
const unsigned long *supported,
const struct phylink_link_state *state,
phy_interface_t interface,
@@ -719,6 +719,9 @@ static void phylink_validate_one(struct
@@ -739,6 +739,9 @@ static void phylink_validate_one(struct
tmp_state = *state;
tmp_state.interface = interface;
@ -36,7 +36,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
if (!phylink_validate_mac_and_pcs(pl, tmp_supported, &tmp_state)) {
phylink_dbg(pl, " interface %u (%s) rate match %s supports %*pbl\n",
interface, phy_modes(interface),
@@ -740,7 +743,7 @@ static int phylink_validate_mask(struct
@@ -760,7 +763,7 @@ static int phylink_validate_mask(struct
int interface;
for_each_set_bit(interface, interfaces, PHY_INTERFACE_MODE_MAX)

8
target/linux/generic/backport-6.6/895-05-v6.8-net-phylink-pass-PHY-into-phylink_validate_mask.patch
View File

@ -17,7 +17,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -734,7 +734,8 @@ static void phylink_validate_one(struct
@@ -754,7 +754,8 @@ static void phylink_validate_one(struct
}
}
@ -27,7 +27,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
struct phylink_link_state *state,
const unsigned long *interfaces)
{
@@ -743,7 +744,7 @@ static int phylink_validate_mask(struct
@@ -763,7 +764,7 @@ static int phylink_validate_mask(struct
int interface;
for_each_set_bit(interface, interfaces, PHY_INTERFACE_MODE_MAX)
@ -36,7 +36,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
all_s, all_adv);
linkmode_copy(supported, all_s);
@@ -758,7 +759,8 @@ static int phylink_validate(struct phyli
@@ -778,7 +779,8 @@ static int phylink_validate(struct phyli
const unsigned long *interfaces = pl->config->supported_interfaces;
if (state->interface == PHY_INTERFACE_MODE_NA)
@ -46,7 +46,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
if (!test_bit(state->interface, interfaces))
return -EINVAL;
@@ -3194,7 +3196,8 @@ static int phylink_sfp_config_optical(st
@@ -3465,7 +3467,8 @@ static int phylink_sfp_config_optical(st
/* For all the interfaces that are supported, reduce the sfp_support
* mask to only those link modes that can be supported.
*/

4
target/linux/generic/backport-6.6/895-06-v6.8-net-phylink-split-out-PHY-validation-from-phylink_br.patch
View File

@ -22,7 +22,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -1775,6 +1775,35 @@ static void phylink_phy_change(struct ph
@@ -2019,6 +2019,35 @@ static void phylink_phy_change(struct ph
phylink_pause_to_str(pl->phy_state.pause));
}
@ -58,7 +58,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
static int phylink_bringup_phy(struct phylink *pl, struct phy_device *phy,
phy_interface_t interface)
{
@@ -1795,32 +1824,9 @@ static int phylink_bringup_phy(struct ph
@@ -2039,32 +2068,9 @@ static int phylink_bringup_phy(struct ph
memset(&config, 0, sizeof(config));
linkmode_copy(supported, phy->supported);
linkmode_copy(config.advertising, phy->advertising);

6
target/linux/generic/backport-6.6/895-07-v6.8-net-phylink-use-the-PHY-s-possible_interfaces-if-pop.patch
View File

@ -40,7 +40,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -121,6 +121,19 @@ do { \
@@ -123,6 +123,19 @@ do { \
})
#endif
@ -60,7 +60,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
/**
* phylink_set_port_modes() - set the port type modes in the ethtool mask
* @mask: ethtool link mode mask
@@ -1779,6 +1792,47 @@ static int phylink_validate_phy(struct p
@@ -2023,6 +2036,47 @@ static int phylink_validate_phy(struct p
unsigned long *supported,
struct phylink_link_state *state)
{
@ -108,7 +108,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
/* Check whether we would use rate matching for the proposed interface
* mode.
*/
@@ -3047,19 +3101,6 @@ static void phylink_sfp_detach(void *ups
@@ -3318,19 +3372,6 @@ static void phylink_sfp_detach(void *ups
pl->netdev->sfp_bus = NULL;
}

6
target/linux/generic/hack-6.12/750-net-pcs-mtk-lynxi-workaround-2500BaseX-no-an.patch
View File

@ -13,7 +13,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
--- a/drivers/net/pcs/pcs-mtk-lynxi.c
+++ b/drivers/net/pcs/pcs-mtk-lynxi.c
@@ -114,14 +114,23 @@ static void mtk_pcs_lynxi_get_state(stru
@@ -129,14 +129,23 @@ static void mtk_pcs_lynxi_get_state(stru
struct phylink_link_state *state)
{
struct mtk_pcs_lynxi *mpcs = pcs_to_mtk_pcs_lynxi(pcs);
@ -41,7 +41,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
}
static void mtk_sgmii_reset(struct mtk_pcs_lynxi *mpcs)
@@ -142,7 +151,7 @@ static int mtk_pcs_lynxi_config(struct p
@@ -157,7 +166,7 @@ static int mtk_pcs_lynxi_config(struct p
{
struct mtk_pcs_lynxi *mpcs = pcs_to_mtk_pcs_lynxi(pcs);
bool mode_changed = false, changed;
@ -50,7 +50,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
int advertise, link_timer;
advertise = phylink_mii_c22_pcs_encode_advertisement(interface,
@@ -165,9 +174,8 @@ static int mtk_pcs_lynxi_config(struct p
@@ -180,9 +189,8 @@ static int mtk_pcs_lynxi_config(struct p
if (neg_mode == PHYLINK_PCS_NEG_INBAND_ENABLED) {
if (interface == PHY_INTERFACE_MODE_SGMII)
sgm_mode |= SGMII_SPEED_DUPLEX_AN;

6
target/linux/generic/hack-6.6/750-net-pcs-mtk-lynxi-workaround-2500BaseX-no-an.patch
View File

@ -13,7 +13,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
--- a/drivers/net/pcs/pcs-mtk-lynxi.c
+++ b/drivers/net/pcs/pcs-mtk-lynxi.c
@@ -114,14 +114,23 @@ static void mtk_pcs_lynxi_get_state(stru
@@ -129,14 +129,23 @@ static void mtk_pcs_lynxi_get_state(stru
struct phylink_link_state *state)
{
struct mtk_pcs_lynxi *mpcs = pcs_to_mtk_pcs_lynxi(pcs);
@ -41,7 +41,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
}
static void mtk_sgmii_reset(struct mtk_pcs_lynxi *mpcs)
@@ -142,7 +151,7 @@ static int mtk_pcs_lynxi_config(struct p
@@ -157,7 +166,7 @@ static int mtk_pcs_lynxi_config(struct p
{
struct mtk_pcs_lynxi *mpcs = pcs_to_mtk_pcs_lynxi(pcs);
bool mode_changed = false, changed;
@ -50,7 +50,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
int advertise, link_timer;
advertise = phylink_mii_c22_pcs_encode_advertisement(interface,
@@ -165,9 +174,8 @@ static int mtk_pcs_lynxi_config(struct p
@@ -180,9 +189,8 @@ static int mtk_pcs_lynxi_config(struct p
if (neg_mode == PHYLINK_PCS_NEG_INBAND_ENABLED) {
if (interface == PHY_INTERFACE_MODE_SGMII)
sgm_mode |= SGMII_SPEED_DUPLEX_AN;

2
target/linux/generic/pending-6.12/703-phy-add-detach-callback-to-struct-phy_driver.patch
View File

@ -23,7 +23,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
sysfs_remove_link(&dev->dev.kobj, "phydev");
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -996,6 +996,12 @@ struct phy_driver {
@@ -1027,6 +1027,12 @@ struct phy_driver {
/** @handle_interrupt: Override default interrupt handling */
irqreturn_t (*handle_interrupt)(struct phy_device *phydev);

4
target/linux/generic/pending-6.12/706-net-phy-populate-host_interfaces-when-attaching-PHY.patch
View File

@ -20,7 +20,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -2086,7 +2086,7 @@ int phylink_fwnode_phy_connect(struct ph
@@ -2264,7 +2264,7 @@ int phylink_fwnode_phy_connect(struct ph
{
struct fwnode_handle *phy_fwnode;
struct phy_device *phy_dev;
@ -29,7 +29,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
/* Fixed links and 802.3z are handled without needing a PHY */
if (pl->cfg_link_an_mode == MLO_AN_FIXED ||
@@ -2116,6 +2116,25 @@ int phylink_fwnode_phy_connect(struct ph
@@ -2294,6 +2294,25 @@ int phylink_fwnode_phy_connect(struct ph
if (pl->config->mac_requires_rxc)
flags |= PHY_F_RXC_ALWAYS_ON;

14
target/linux/generic/pending-6.12/739-03-net-pcs-pcs-mtk-lynxi-add-platform-driver-for-MT7988.patch
View File

@ -79,7 +79,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
static struct mtk_pcs_lynxi *pcs_to_mtk_pcs_lynxi(struct phylink_pcs *pcs)
{
return container_of(pcs, struct mtk_pcs_lynxi, pcs);
@@ -102,6 +124,17 @@ static void mtk_pcs_lynxi_get_state(stru
@@ -117,6 +139,17 @@ static void mtk_pcs_lynxi_get_state(stru
FIELD_GET(SGMII_LPA, adv));
}
@ -97,7 +97,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
static int mtk_pcs_lynxi_config(struct phylink_pcs *pcs, unsigned int neg_mode,
phy_interface_t interface,
const unsigned long *advertising,
@@ -147,6 +180,7 @@ static int mtk_pcs_lynxi_config(struct p
@@ -162,6 +195,7 @@ static int mtk_pcs_lynxi_config(struct p
SGMII_PHYA_PWD);
/* Reset SGMII PCS state */
@ -105,7 +105,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
regmap_set_bits(mpcs->regmap, SGMSYS_RESERVED_0,
SGMII_SW_RESET);
@@ -233,10 +267,29 @@ static void mtk_pcs_lynxi_link_up(struct
@@ -248,10 +282,29 @@ static void mtk_pcs_lynxi_link_up(struct
}
}
@ -135,7 +135,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
mpcs->interface = PHY_INTERFACE_MODE_NA;
}
@@ -246,11 +299,12 @@ static const struct phylink_pcs_ops mtk_
@@ -262,11 +315,12 @@ static const struct phylink_pcs_ops mtk_
.pcs_an_restart = mtk_pcs_lynxi_restart_an,
.pcs_link_up = mtk_pcs_lynxi_link_up,
.pcs_disable = mtk_pcs_lynxi_disable,
@ -151,7 +151,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
{
struct mtk_pcs_lynxi *mpcs;
u32 id, ver;
@@ -258,29 +312,33 @@ struct phylink_pcs *mtk_pcs_lynxi_create
@@ -274,29 +328,33 @@ struct phylink_pcs *mtk_pcs_lynxi_create
ret = regmap_read(regmap, SGMSYS_PCS_DEVICE_ID, &id);
if (ret < 0)
@ -192,7 +192,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
mpcs->ana_rgc3 = ana_rgc3;
mpcs->regmap = regmap;
@@ -291,6 +349,13 @@ struct phylink_pcs *mtk_pcs_lynxi_create
@@ -307,6 +365,13 @@ struct phylink_pcs *mtk_pcs_lynxi_create
mpcs->interface = PHY_INTERFACE_MODE_NA;
return &mpcs->pcs;
@ -206,7 +206,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
}
EXPORT_SYMBOL(mtk_pcs_lynxi_create);
@@ -303,5 +368,142 @@ void mtk_pcs_lynxi_destroy(struct phylin
@@ -319,5 +384,142 @@ void mtk_pcs_lynxi_destroy(struct phylin
}
EXPORT_SYMBOL(mtk_pcs_lynxi_destroy);

2
target/linux/generic/pending-6.6/703-phy-add-detach-callback-to-struct-phy_driver.patch
View File

@ -23,7 +23,7 @@ Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
sysfs_remove_link(&dev->dev.kobj, "phydev");
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -977,6 +977,12 @@ struct phy_driver {
@@ -1008,6 +1008,12 @@ struct phy_driver {
/** @handle_interrupt: Override default interrupt handling */
irqreturn_t (*handle_interrupt)(struct phy_device *phydev);

4
target/linux/generic/pending-6.6/706-net-phy-populate-host_interfaces-when-attaching-PHY.patch
View File

@ -20,7 +20,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -2017,7 +2017,7 @@ int phylink_fwnode_phy_connect(struct ph
@@ -2261,7 +2261,7 @@ int phylink_fwnode_phy_connect(struct ph
{
struct fwnode_handle *phy_fwnode;
struct phy_device *phy_dev;
@ -29,7 +29,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
/* Fixed links and 802.3z are handled without needing a PHY */
if (pl->cfg_link_an_mode == MLO_AN_FIXED ||
@@ -2044,6 +2044,25 @@ int phylink_fwnode_phy_connect(struct ph
@@ -2288,6 +2288,25 @@ int phylink_fwnode_phy_connect(struct ph
pl->link_config.interface = pl->link_interface;
}

14
target/linux/generic/pending-6.6/739-03-net-pcs-pcs-mtk-lynxi-add-platform-driver-for-MT7988.patch
View File

@ -79,7 +79,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
static struct mtk_pcs_lynxi *pcs_to_mtk_pcs_lynxi(struct phylink_pcs *pcs)
{
return container_of(pcs, struct mtk_pcs_lynxi, pcs);
@@ -102,6 +124,17 @@ static void mtk_pcs_lynxi_get_state(stru
@@ -117,6 +139,17 @@ static void mtk_pcs_lynxi_get_state(stru
FIELD_GET(SGMII_LPA, adv));
}
@ -97,7 +97,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
static int mtk_pcs_lynxi_config(struct phylink_pcs *pcs, unsigned int neg_mode,
phy_interface_t interface,
const unsigned long *advertising,
@@ -147,6 +180,7 @@ static int mtk_pcs_lynxi_config(struct p
@@ -162,6 +195,7 @@ static int mtk_pcs_lynxi_config(struct p
SGMII_PHYA_PWD);
/* Reset SGMII PCS state */
@ -105,7 +105,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
regmap_set_bits(mpcs->regmap, SGMSYS_RESERVED_0,
SGMII_SW_RESET);
@@ -233,10 +267,29 @@ static void mtk_pcs_lynxi_link_up(struct
@@ -248,10 +282,29 @@ static void mtk_pcs_lynxi_link_up(struct
}
}
@ -135,7 +135,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
mpcs->interface = PHY_INTERFACE_MODE_NA;
}
@@ -246,11 +299,12 @@ static const struct phylink_pcs_ops mtk_
@@ -262,11 +315,12 @@ static const struct phylink_pcs_ops mtk_
.pcs_an_restart = mtk_pcs_lynxi_restart_an,
.pcs_link_up = mtk_pcs_lynxi_link_up,
.pcs_disable = mtk_pcs_lynxi_disable,
@ -151,7 +151,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
{
struct mtk_pcs_lynxi *mpcs;
u32 id, ver;
@@ -258,29 +312,33 @@ struct phylink_pcs *mtk_pcs_lynxi_create
@@ -274,29 +328,33 @@ struct phylink_pcs *mtk_pcs_lynxi_create
ret = regmap_read(regmap, SGMSYS_PCS_DEVICE_ID, &id);
if (ret < 0)
@ -192,7 +192,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
mpcs->ana_rgc3 = ana_rgc3;
mpcs->regmap = regmap;
@@ -291,6 +349,13 @@ struct phylink_pcs *mtk_pcs_lynxi_create
@@ -307,6 +365,13 @@ struct phylink_pcs *mtk_pcs_lynxi_create
mpcs->interface = PHY_INTERFACE_MODE_NA;
return &mpcs->pcs;
@ -206,7 +206,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
}
EXPORT_SYMBOL(mtk_pcs_lynxi_create);
@@ -303,4 +368,142 @@ void mtk_pcs_lynxi_destroy(struct phylin
@@ -319,4 +384,142 @@ void mtk_pcs_lynxi_destroy(struct phylin
}
EXPORT_SYMBOL(mtk_pcs_lynxi_destroy);

4
target/linux/layerscape/patches-6.12/702-phy-Add-2.5G-SGMII-interface-mode.patch
View File

@ -36,7 +36,7 @@ Signed-off-by: Bhaskar Upadhaya <Bhaskar.Upadhaya@nxp.com>
case PHY_INTERFACE_MODE_QUSGMII:
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -230,6 +230,7 @@ static int phylink_interface_max_speed(p
@@ -250,6 +250,7 @@ static int phylink_interface_max_speed(p
case PHY_INTERFACE_MODE_GMII:
return SPEED_1000;
@ -44,7 +44,7 @@ Signed-off-by: Bhaskar Upadhaya <Bhaskar.Upadhaya@nxp.com>
case PHY_INTERFACE_MODE_2500BASEX:
case PHY_INTERFACE_MODE_10G_QXGMII:
return SPEED_2500;
@@ -544,6 +545,7 @@ static unsigned long phylink_get_capabil
@@ -564,6 +565,7 @@ static unsigned long phylink_get_capabil
break;
case PHY_INTERFACE_MODE_2500BASEX:

4
target/linux/layerscape/patches-6.6/702-phy-Add-2.5G-SGMII-interface-mode.patch
View File

@ -25,7 +25,7 @@ Signed-off-by: Bhaskar Upadhaya <Bhaskar.Upadhaya@nxp.com>
case PHY_INTERFACE_MODE_QUSGMII:
--- a/drivers/net/phy/phylink.c
+++ b/drivers/net/phy/phylink.c
@@ -231,6 +231,7 @@ static int phylink_interface_max_speed(p
@@ -251,6 +251,7 @@ static int phylink_interface_max_speed(p
return SPEED_1000;
case PHY_INTERFACE_MODE_2500BASEX:
@ -33,7 +33,7 @@ Signed-off-by: Bhaskar Upadhaya <Bhaskar.Upadhaya@nxp.com>
return SPEED_2500;
case PHY_INTERFACE_MODE_5GBASER:
@@ -539,6 +540,7 @@ unsigned long phylink_get_capabilities(p
@@ -559,6 +560,7 @@ unsigned long phylink_get_capabilities(p
break;
case PHY_INTERFACE_MODE_2500BASEX:

1242
target/linux/mediatek/patches-6.12/739-net-add-negotiation-of-in-band-capabilities.patch
View File

File diff suppressed because it is too large Load Diff

4
target/linux/mvebu/patches-6.12/700-mvneta-tx-queue-workaround.patch
View File

@ -14,7 +14,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -5296,6 +5296,16 @@ static int mvneta_setup_tc(struct net_de
@@ -5303,6 +5303,16 @@ static int mvneta_setup_tc(struct net_de
}
}
@ -31,7 +31,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
static const struct net_device_ops mvneta_netdev_ops = {
.ndo_open = mvneta_open,
.ndo_stop = mvneta_stop,
@@ -5306,6 +5316,9 @@ static const struct net_device_ops mvnet
@@ -5313,6 +5323,9 @@ static const struct net_device_ops mvnet
.ndo_fix_features = mvneta_fix_features,
.ndo_get_stats64 = mvneta_get_stats64,
.ndo_eth_ioctl = mvneta_ioctl,

2
target/linux/siflower/patches-6.6/001-net-phy-c45-add-genphy_c45_pma_read_ext_abilities-fu.patch
View File

@ -170,7 +170,7 @@ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
/* This is optional functionality. If not supported, we may get an error
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -1897,6 +1897,7 @@ int genphy_c45_an_config_aneg(struct phy
@@ -1931,6 +1931,7 @@ int genphy_c45_an_config_aneg(struct phy
int genphy_c45_an_disable_aneg(struct phy_device *phydev);
int genphy_c45_read_mdix(struct phy_device *phydev);
int genphy_c45_pma_read_abilities(struct phy_device *phydev);