[openwrt/openwrt] ramips: phy: at803x: Select SFP interface mode that both sides supports.
LEDE Commits
lede-commits at lists.infradead.org
Mon Nov 23 16:53:42 EST 2020
ynezz pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/6e1a4496f58c0eb69280dca7e0ba692bef41fbda
commit 6e1a4496f58c0eb69280dca7e0ba692bef41fbda
Author: René van Dorst <opensource at vdorst.com>
AuthorDate: Fri Nov 13 16:45:54 2020 +0100
ramips: phy: at803x: Select SFP interface mode that both sides supports.
Currently sfp_select_interface() return the fastest interface that
the sfp modules supports even if the phy don't support that mode.
For example an GPON module that support both 2500basex and 1000basex.
Currently sfp_select_interface() picks 2500basex instead of 1000basex.
So limit the interfaces which both sides supports before calling
sfp_select_interface() or return an error if we don't have match.
Reviewed-by: John Thomson <git at johnthomson.fastmail.com.au>
Tested-by: Braihan Cantera <bcanterac at gmail.com> [MikroTik RB760iGS + Nokia G-010S-A 3FE46541AA SFP]
Tested-by: John Thomson <git at johnthomson.fastmail.com.au> [Mikrotik rb760igs + SFP SM/LC, SFP base1000T, SFP+ passive DAC]
Signed-off-by: René van Dorst <opensource at vdorst.com>
---
target/linux/ramips/patches-5.4/991-at803x.patch | 51 ++++++++++++++++--------
1 file changed, 35 insertions(+), 16 deletions(-)
diff --git a/target/linux/ramips/patches-5.4/991-at803x.patch b/target/linux/ramips/patches-5.4/991-at803x.patch
index dd1d2755ed..64bc48fe7a 100644
--- a/target/linux/ramips/patches-5.4/991-at803x.patch
+++ b/target/linux/ramips/patches-5.4/991-at803x.patch
@@ -1,6 +1,6 @@
-From 60ae82b0ea56c279be384b99cd2a42ae5ba7c5c7 Mon Sep 17 00:00:00 2001
+From 924453aa9d2324e5611f8e2b71df746d8f0c79f1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ren=C3=A9=20van=20Dorst?= <opensource at vdorst.com>
-Date: Mon, 4 Nov 2019 22:22:17 +0100
+Date: Fri, 13 Nov 2020 16:11:32 +0100
Subject: [PATCH] net: phy: at803x: add support for SFP module in
RGMII-to-x-base mode
MIME-Version: 1.0
@@ -9,20 +9,23 @@ Content-Transfer-Encoding: 8bit
Signed-off-by: René van Dorst <opensource at vdorst.com>
---
- drivers/net/phy/at803x.c | 74 ++++++++++++++++++++++++++++++++++++++++
- 1 file changed, 74 insertions(+)
+ drivers/net/phy/at803x.c | 91 ++++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 91 insertions(+)
+diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
+index 31cd7d8a5a1b5..134c894ccf800 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
-@@ -14,6 +14,7 @@
+@@ -14,6 +14,8 @@
#include <linux/etherdevice.h>
#include <linux/of_gpio.h>
#include <linux/gpio/consumer.h>
+#include <linux/sfp.h>
++#include <linux/phylink.h>
#define AT803X_SPECIFIC_STATUS 0x11
#define AT803X_SS_SPEED_MASK (3 << 14)
-@@ -53,9 +54,18 @@
+@@ -53,9 +55,18 @@
#define AT803X_MODE_CFG_MASK 0x0F
#define AT803X_MODE_CFG_SGMII 0x01
@@ -41,7 +44,7 @@ Signed-off-by: René van Dorst <opensource at vdorst.com>
#define AT803X_DEBUG_REG_0 0x00
#define AT803X_DEBUG_RX_CLK_DLY_EN BIT(15)
-@@ -243,10 +253,56 @@ static int at803x_resume(struct phy_devi
+@@ -243,10 +254,72 @@ static int at803x_resume(struct phy_device *phydev)
return phy_modify(phydev, MII_BMCR, BMCR_PDOWN | BMCR_ISOLATE, 0);
}
@@ -59,23 +62,39 @@ Signed-off-by: René van Dorst <opensource at vdorst.com>
+
+static int at803x_sfp_insert(void *upstream, const struct sfp_eeprom_id *id)
+{
-+ struct phy_device *phydev = upstream;
++ __ETHTOOL_DECLARE_LINK_MODE_MASK(at803x_support) = { 0, };
+ __ETHTOOL_DECLARE_LINK_MODE_MASK(support) = { 0, };
++ struct phy_device *phydev = upstream;
+ phy_interface_t iface;
+
++ phylink_set(at803x_support, 1000baseX_Full);
++ /* AT803x only support 1000baseX but SGMII works fine when module runs
++ * at 1Gbit.
++ */
++ phylink_set(at803x_support, 1000baseT_Full);
++
+ sfp_parse_support(phydev->sfp_bus, id, support);
++
++ // Limit to interfaces that both sides support
++ linkmode_and(support, support, at803x_support);
++
++ if (linkmode_empty(support))
++ goto unsupported_mode;
++
+ iface = sfp_select_interface(phydev->sfp_bus, support);
+
+ if (iface != PHY_INTERFACE_MODE_SGMII &&
-+ iface != PHY_INTERFACE_MODE_1000BASEX) {
-+ dev_info(&phydev->mdio.dev, "incompatible SFP module inserted;"
-+ "Only SGMII/1000BASEX are supported!\n");
-+ return -EINVAL;
-+ }
++ iface != PHY_INTERFACE_MODE_1000BASEX)
++ goto unsupported_mode;
+
+ dev_info(&phydev->mdio.dev, "SFP interface %s", phy_modes(iface));
+
+ return 0;
++
++unsupported_mode:
++ dev_info(&phydev->mdio.dev, "incompatible SFP module inserted;"
++ "Only SGMII at 1Gbit/1000BASEX are supported!\n");
++ return -EINVAL;
+}
+
+static const struct sfp_upstream_ops at803x_sfp_ops = {
@@ -98,7 +117,7 @@ Signed-off-by: René van Dorst <opensource at vdorst.com>
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
-@@ -394,6 +450,10 @@ static int at803x_read_status(struct phy
+@@ -394,6 +467,10 @@ static int at803x_read_status(struct phy_device *phydev)
{
int ss, err, old_link = phydev->link;
@@ -109,7 +128,7 @@ Signed-off-by: René van Dorst <opensource at vdorst.com>
/* Update the link, but return if there was an error */
err = genphy_update_link(phydev);
if (err)
-@@ -448,6 +508,19 @@ static int at803x_read_status(struct phy
+@@ -448,6 +525,19 @@ static int at803x_read_status(struct phy_device *phydev)
return 0;
}
@@ -129,7 +148,7 @@ Signed-off-by: René van Dorst <opensource at vdorst.com>
static struct phy_driver at803x_driver[] = {
{
/* ATHEROS 8035 */
-@@ -491,6 +564,7 @@ static struct phy_driver at803x_driver[]
+@@ -491,6 +581,7 @@ static struct phy_driver at803x_driver[] = {
.suspend = at803x_suspend,
.resume = at803x_resume,
/* PHY_GBIT_FEATURES */
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