kernel: improve driver support for gen-3 Aquantia Ethernet PHYs

 * correctly set system side interface, the original patch was
   errornous and there is a follow-up fix for it
 * enable phy statistics for AQR112(+R/C) and ARQ412
   (ethtool --phy-statistics ethX)

Tested, including phy-statistics, on
 - IEI Puzzle M901 (AQR112, AQR112C, AQR112R)
 - IEI Puzzle M902 (AQR113, AQR112R)
 - Ubiquiti UniFi 6 LR (AQR112C)

Signed-off-by: Daniel Golle <[email protected]>

target/linux/generic/hack-5.10/721-net-phy-aquantia-enable-AQR112-and-AQR412.patch → target/linux/generic/hack-5.10/722-net-phy-aquantia-enable-AQR112-and-AQR412.patch

@@ -109,30 +109,38 @@ Signed-off-by: Alex Marginean <[email protected]>
  static int aqr_config_intr(struct phy_device *phydev)
  {
  	bool en = phydev->interrupts == PHY_INTERRUPT_ENABLED;
-@@ -738,6 +808,22 @@ static struct phy_driver aqr_driver[] =
+@@ -738,6 +808,30 @@ static struct phy_driver aqr_driver[] =
  	.get_stats	= aqr107_get_stats,
  	.link_change_notify = aqr107_link_change_notify,
  },
 +{
 +	PHY_ID_MATCH_MODEL(PHY_ID_AQR112),
 +	.name		= "Aquantia AQR112",
-+	.config_aneg    = aqr_config_aneg_set_prot,
++	.probe		= aqr107_probe,
++	.config_aneg	= aqr_config_aneg_set_prot,
 +	.config_intr	= aqr_config_intr,
 +	.ack_interrupt	= aqr_ack_interrupt,
 +	.read_status	= aqr107_read_status,
++	.get_sset_count	= aqr107_get_sset_count,
++	.get_strings	= aqr107_get_strings,
++	.get_stats	= aqr107_get_stats,
 +},
 +{
 +	PHY_ID_MATCH_MODEL(PHY_ID_AQR412),
 +	.name		= "Aquantia AQR412",
-+	.config_aneg    = aqr_config_aneg_set_prot,
++	.probe		= aqr107_probe,
++	.config_aneg	= aqr_config_aneg_set_prot,
 +	.config_intr	= aqr_config_intr,
 +	.ack_interrupt	= aqr_ack_interrupt,
 +	.read_status	= aqr107_read_status,
++	.get_sset_count	= aqr107_get_sset_count,
++	.get_strings	= aqr107_get_strings,
++	.get_stats	= aqr107_get_stats,
 +},
  };
  
  module_phy_driver(aqr_driver);
-@@ -748,9 +834,11 @@ static struct mdio_device_id __maybe_unu
+@@ -748,9 +842,11 @@ static struct mdio_device_id __maybe_unu
  	{ PHY_ID_MATCH_MODEL(PHY_ID_AQR105) },
  	{ PHY_ID_MATCH_MODEL(PHY_ID_AQR106) },
  	{ PHY_ID_MATCH_MODEL(PHY_ID_AQR107) },

target/linux/generic/hack-5.10/723-net-phy-aquantia-fix-system-side-protocol-mi.patch

@@ -0,0 +1,34 @@
+From 5f008cb22f60da4e10375f22266c1a4e20b1252e Mon Sep 17 00:00:00 2001
+From: Alex Marginean <[email protected]>
+Date: Fri, 20 Sep 2019 18:22:52 +0300
+Subject: [PATCH] drivers: net: phy: aquantia: fix system side protocol
+ misconfiguration
+
+Do not set up protocols for speeds that are not supported by FW.  Enabling
+these protocols leads to link issues on system side.
+
+Signed-off-by: Alex Marginean <[email protected]>
+---
+ drivers/net/phy/aquantia_main.c | 8 +++++++-
+ 1 file changed, 7 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/phy/aquantia_main.c
++++ b/drivers/net/phy/aquantia_main.c
+@@ -301,10 +301,16 @@ static int aqr_config_aneg_set_prot(stru
+ 	phy_write_mmd(phydev, MDIO_MMD_VEND1, AQUANTIA_VND1_GSTART_RATE,
+ 		      aquantia_syscfg[if_type].start_rate);
+ 
+-	for (i = 0; i <= aquantia_syscfg[if_type].cnt; i++)
++	for (i = 0; i <= aquantia_syscfg[if_type].cnt; i++) {
++		u16 reg = phy_read_mmd(phydev, MDIO_MMD_VEND1,
++				       AQUANTIA_VND1_GSYSCFG_BASE + i);
++		if (!reg)
++			continue;
++
+ 		phy_write_mmd(phydev, MDIO_MMD_VEND1,
+ 			      AQUANTIA_VND1_GSYSCFG_BASE + i,
+ 			      aquantia_syscfg[if_type].syscfg);
++	}
+ 
+ 	/* wake PHY back up */
+ 	phy_write_mmd(phydev, MDIO_MMD_VEND1, AQUANTIA_VND1_GLOBAL_SC, 0);

target/linux/generic/hack-5.10/722-net-phy-aquantia-Add-AQR113-driver-support.patch → target/linux/generic/hack-5.10/724-net-phy-aquantia-Add-AQR113-driver-support.patch

@@ -18,8 +18,8 @@ Add a new entry for AQR113 PHY_ID
  #define PHY_ID_AQR113C	0x31c31c12
  #define PHY_ID_AQCS109	0x03a1b5c2
  #define PHY_ID_AQR405	0x03a1b4b0
-@@ -817,6 +818,14 @@ static struct phy_driver aqr_driver[] =
- 	.read_status	= aqr107_read_status,
+@@ -827,6 +828,14 @@ static struct phy_driver aqr_driver[] =
+ 	.get_stats	= aqr107_get_stats,
  },
  {
 +	PHY_ID_MATCH_MODEL(PHY_ID_AQR113),
@@ -32,8 +32,8 @@ Add a new entry for AQR113 PHY_ID
 +{
  	PHY_ID_MATCH_MODEL(PHY_ID_AQR412),
  	.name		= "Aquantia AQR412",
- 	.config_aneg    = aqr_config_aneg_set_prot,
-@@ -835,6 +844,7 @@ static struct mdio_device_id __maybe_unu
+ 	.probe		= aqr107_probe,
+@@ -849,6 +858,7 @@ static struct mdio_device_id __maybe_unu
  	{ PHY_ID_MATCH_MODEL(PHY_ID_AQR106) },
  	{ PHY_ID_MATCH_MODEL(PHY_ID_AQR107) },
  	{ PHY_ID_MATCH_MODEL(PHY_ID_AQR112) },

target/linux/generic/hack-5.10/723-net-phy-aquantia-add-PHY_IDs-for-AQR112-variants.patch → target/linux/generic/hack-5.10/725-net-phy-aquantia-add-PHY_IDs-for-AQR112-variants.patch

@@ -21,30 +21,38 @@ Signed-off-by: Daniel Golle <[email protected]>
  #define PHY_ID_AQR113	0x31c31c40
  #define PHY_ID_AQR113C	0x31c31c12
  #define PHY_ID_AQCS109	0x03a1b5c2
-@@ -818,6 +820,22 @@ static struct phy_driver aqr_driver[] =
- 	.read_status	= aqr107_read_status,
+@@ -828,6 +830,30 @@ static struct phy_driver aqr_driver[] =
+ 	.get_stats	= aqr107_get_stats,
  },
  {
 +	PHY_ID_MATCH_MODEL(PHY_ID_AQR112C),
 +	.name		= "Aquantia AQR112C",
++	.probe		= aqr107_probe,
 +	.config_aneg	= aqr_config_aneg_set_prot,
 +	.config_intr	= aqr_config_intr,
 +	.ack_interrupt	= aqr_ack_interrupt,
 +	.read_status	= aqr107_read_status,
++	.get_sset_count	= aqr107_get_sset_count,
++	.get_strings	= aqr107_get_strings,
++	.get_stats	= aqr107_get_stats,
 +},
 +{
 +	PHY_ID_MATCH_MODEL(PHY_ID_AQR112R),
 +	.name		= "Aquantia AQR112R",
++	.probe		= aqr107_probe,
 +	.config_aneg	= aqr_config_aneg_set_prot,
 +	.config_intr	= aqr_config_intr,
 +	.ack_interrupt	= aqr_ack_interrupt,
 +	.read_status	= aqr107_read_status,
++	.get_sset_count	= aqr107_get_sset_count,
++	.get_strings	= aqr107_get_strings,
++	.get_stats	= aqr107_get_stats,
 +},
 +{
  	PHY_ID_MATCH_MODEL(PHY_ID_AQR113),
  	.name		= "Aquantia AQR113",
  	.config_aneg	= aqr_config_aneg,
-@@ -844,6 +862,8 @@ static struct mdio_device_id __maybe_unu
+@@ -858,6 +884,8 @@ static struct mdio_device_id __maybe_unu
  	{ PHY_ID_MATCH_MODEL(PHY_ID_AQR106) },
  	{ PHY_ID_MATCH_MODEL(PHY_ID_AQR107) },
  	{ PHY_ID_MATCH_MODEL(PHY_ID_AQR112) },