2021-10-22 12:09:43

by Luo Jie

[permalink] [raw]
Subject: [PATCH v4 0/14] net: phy: Add qca8081 ethernet phy driver

This patch series add the qca8081 ethernet phy driver support, which
improve the wol feature, leverage at803x phy driver and add the fast
retrain, master/slave seed and CDT feature.

Changes in v4:
* handle other interrupts in set_wol.
* add genphy_c45_fast_retrain.

Changes in v3:
* correct a typo "excpet".
* remove the suffix "PHY" from phy name.

Changes in v2:
* add definitions of fast retrain related registers in mdio.h.
* break up the patch into small patches.
* improve the at803x legacy code.

Changes in v1:
* merge qca8081 phy driver into at803x.
* add cdt feature.
* leverage at803x phy driver helpers.

Luo Jie (14):
net: phy: at803x: replace AT803X_DEVICE_ADDR with MDIO_MMD_PCS
net: phy: at803x: use phy_modify()
net: phy: at803x: improve the WOL feature
net: phy: at803x: use GENMASK() for speed status
net: phy: add qca8081 ethernet phy driver
net: phy: add qca8081 read_status
net: phy: add qca8081 get_features
net: phy: add qca8081 config_aneg
net: phy: add constants for fast retrain related register
net: phy: add genphy_c45_fast_retrain
net: phy: add qca8081 config_init
net: phy: add qca8081 soft_reset and enable master/slave seed
net: phy: adjust qca8081 master/slave seed value if link down
net: phy: add qca8081 cdt feature

drivers/net/phy/at803x.c | 580 +++++++++++++++++++++++++++++++++++---
drivers/net/phy/phy-c45.c | 34 +++
include/linux/phy.h | 1 +
include/uapi/linux/mdio.h | 9 +
4 files changed, 577 insertions(+), 47 deletions(-)

--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project


2021-10-22 12:09:44

by Luo Jie

[permalink] [raw]
Subject: [PATCH v4 02/14] net: phy: at803x: use phy_modify()

Convert at803x_set_wol to use phy_modify.

Signed-off-by: Luo Jie <[email protected]>
---
drivers/net/phy/at803x.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index b04fb251bacb..19011c16a1da 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -349,16 +349,12 @@ static int at803x_set_wol(struct phy_device *phydev,
phy_write_mmd(phydev, MDIO_MMD_PCS, offsets[i],
mac[(i * 2) + 1] | (mac[(i * 2)] << 8));

- value = phy_read(phydev, AT803X_INTR_ENABLE);
- value |= AT803X_INTR_ENABLE_WOL;
- ret = phy_write(phydev, AT803X_INTR_ENABLE, value);
+ ret = phy_modify(phydev, AT803X_INTR_ENABLE, 0, AT803X_INTR_ENABLE_WOL);
if (ret)
return ret;
value = phy_read(phydev, AT803X_INTR_STATUS);
} else {
- value = phy_read(phydev, AT803X_INTR_ENABLE);
- value &= (~AT803X_INTR_ENABLE_WOL);
- ret = phy_write(phydev, AT803X_INTR_ENABLE, value);
+ ret = phy_modify(phydev, AT803X_INTR_ENABLE, AT803X_INTR_ENABLE_WOL, 0);
if (ret)
return ret;
value = phy_read(phydev, AT803X_INTR_STATUS);
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

2021-10-22 12:09:49

by Luo Jie

[permalink] [raw]
Subject: [PATCH v4 03/14] net: phy: at803x: improve the WOL feature

The wol feature is controlled by the MMD3.8012 bit5,
need to set this bit when the wol function is enabled.

The reg18 bit0 is for enabling WOL interrupt, when wol
occurs, the wol interrupt status reg19 bit0 is set to 1.

Call phy_trigger_machine if there are any other interrupt
pending in the function set_wol.

Signed-off-by: Luo Jie <[email protected]>
---
drivers/net/phy/at803x.c | 45 +++++++++++++++++++++++++++++++++-------
1 file changed, 38 insertions(+), 7 deletions(-)

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 19011c16a1da..32fecb260379 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -70,6 +70,8 @@
#define AT803X_CDT_STATUS_DELTA_TIME_MASK GENMASK(7, 0)
#define AT803X_LED_CONTROL 0x18

+#define AT803X_PHY_MMD3_WOL_CTRL 0x8012
+#define AT803X_WOL_EN BIT(5)
#define AT803X_LOC_MAC_ADDR_0_15_OFFSET 0x804C
#define AT803X_LOC_MAC_ADDR_16_31_OFFSET 0x804B
#define AT803X_LOC_MAC_ADDR_32_47_OFFSET 0x804A
@@ -327,8 +329,7 @@ static int at803x_set_wol(struct phy_device *phydev,
{
struct net_device *ndev = phydev->attached_dev;
const u8 *mac;
- int ret;
- u32 value;
+ int ret, irq_enabled;
unsigned int i;
const unsigned int offsets[] = {
AT803X_LOC_MAC_ADDR_32_47_OFFSET,
@@ -349,18 +350,45 @@ static int at803x_set_wol(struct phy_device *phydev,
phy_write_mmd(phydev, MDIO_MMD_PCS, offsets[i],
mac[(i * 2) + 1] | (mac[(i * 2)] << 8));

+ /* Enable WOL function */
+ ret = phy_modify_mmd(phydev, MDIO_MMD_PCS, AT803X_PHY_MMD3_WOL_CTRL,
+ 0, AT803X_WOL_EN);
+ if (ret)
+ return ret;
+ /* Enable WOL interrupt */
ret = phy_modify(phydev, AT803X_INTR_ENABLE, 0, AT803X_INTR_ENABLE_WOL);
if (ret)
return ret;
- value = phy_read(phydev, AT803X_INTR_STATUS);
} else {
+ /* Disable WoL function */
+ ret = phy_modify_mmd(phydev, MDIO_MMD_PCS, AT803X_PHY_MMD3_WOL_CTRL,
+ AT803X_WOL_EN, 0);
+ if (ret)
+ return ret;
+ /* Disable WOL interrupt */
ret = phy_modify(phydev, AT803X_INTR_ENABLE, AT803X_INTR_ENABLE_WOL, 0);
if (ret)
return ret;
- value = phy_read(phydev, AT803X_INTR_STATUS);
}

- return ret;
+ /* Clear WOL status */
+ ret = phy_read(phydev, AT803X_INTR_STATUS);
+ if (ret < 0)
+ return ret;
+
+ /* Check if there are other interrupts except for WOL triggered when PHY is
+ * in interrupt mode, only the interrupts enabled by AT803X_INTR_ENABLE can
+ * be passed up to the interrupt PIN.
+ */
+ irq_enabled = phy_read(phydev, AT803X_INTR_ENABLE);
+ if (irq_enabled < 0)
+ return irq_enabled;
+
+ irq_enabled &= ~AT803X_INTR_ENABLE_WOL;
+ if (ret & irq_enabled && !phy_polling_mode(phydev))
+ phy_trigger_machine(phydev);
+
+ return 0;
}

static void at803x_get_wol(struct phy_device *phydev,
@@ -371,8 +399,11 @@ static void at803x_get_wol(struct phy_device *phydev,
wol->supported = WAKE_MAGIC;
wol->wolopts = 0;

- value = phy_read(phydev, AT803X_INTR_ENABLE);
- if (value & AT803X_INTR_ENABLE_WOL)
+ value = phy_read_mmd(phydev, MDIO_MMD_PCS, AT803X_PHY_MMD3_WOL_CTRL);
+ if (value < 0)
+ return;
+
+ if (value & AT803X_WOL_EN)
wol->wolopts |= WAKE_MAGIC;
}

--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

2021-10-22 12:09:51

by Luo Jie

[permalink] [raw]
Subject: [PATCH v4 07/14] net: phy: add qca8081 get_features

Reuse the at803x phy driver get_features excepting
adding 2500M capability.

Signed-off-by: Luo Jie <[email protected]>
---
drivers/net/phy/at803x.c | 10 ++++++++++
1 file changed, 10 insertions(+)

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 738f5a84cca6..987497e39e50 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -736,6 +736,15 @@ static int at803x_get_features(struct phy_device *phydev)
if (err)
return err;

+ if (phydev->drv->phy_id == QCA8081_PHY_ID) {
+ err = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_NG_EXTABLE);
+ if (err < 0)
+ return err;
+
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->supported,
+ err & MDIO_PMA_NG_EXTABLE_2_5GBT);
+ }
+
if (phydev->drv->phy_id != ATH8031_PHY_ID)
return 0;

@@ -1542,6 +1551,7 @@ static struct phy_driver at803x_driver[] = {
.set_tunable = at803x_set_tunable,
.set_wol = at803x_set_wol,
.get_wol = at803x_get_wol,
+ .get_features = at803x_get_features,
.suspend = genphy_suspend,
.resume = genphy_resume,
.read_status = qca808x_read_status,
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

2021-10-22 12:10:34

by Luo Jie

[permalink] [raw]
Subject: [PATCH v4 06/14] net: phy: add qca8081 read_status

1. Separate the function at803x_read_specific_status from
the at803x_read_status, since it can be reused by the
read_status of qca8081 phy driver excepting adding the
2500M speed.

2. Add the qca8081 read_status function qca808x_read_status.

Signed-off-by: Luo Jie <[email protected]>
---
drivers/net/phy/at803x.c | 95 ++++++++++++++++++++++++++++++----------
1 file changed, 73 insertions(+), 22 deletions(-)

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 460881320ebb..738f5a84cca6 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -41,6 +41,9 @@
#define AT803X_SS_SPEED_DUPLEX_RESOLVED BIT(11)
#define AT803X_SS_MDIX BIT(6)

+#define QCA808X_SS_SPEED_MASK GENMASK(9, 7)
+#define QCA808X_SS_SPEED_2500 4
+
#define AT803X_INTR_ENABLE 0x12
#define AT803X_INTR_ENABLE_AUTONEG_ERR BIT(15)
#define AT803X_INTR_ENABLE_SPEED_CHANGED BIT(14)
@@ -951,27 +954,9 @@ static void at803x_link_change_notify(struct phy_device *phydev)
}
}

-static int at803x_read_status(struct phy_device *phydev)
+static int at803x_read_specific_status(struct phy_device *phydev)
{
- int ss, err, old_link = phydev->link;
-
- /* Update the link, but return if there was an error */
- err = genphy_update_link(phydev);
- if (err)
- return err;
-
- /* why bother the PHY if nothing can have changed */
- if (phydev->autoneg == AUTONEG_ENABLE && old_link && phydev->link)
- return 0;
-
- phydev->speed = SPEED_UNKNOWN;
- phydev->duplex = DUPLEX_UNKNOWN;
- phydev->pause = 0;
- phydev->asym_pause = 0;
-
- err = genphy_read_lpa(phydev);
- if (err < 0)
- return err;
+ int ss;

/* Read the AT8035 PHY-Specific Status register, which indicates the
* speed and duplex that the PHY is actually using, irrespective of
@@ -982,13 +967,19 @@ static int at803x_read_status(struct phy_device *phydev)
return ss;

if (ss & AT803X_SS_SPEED_DUPLEX_RESOLVED) {
- int sfc;
+ int sfc, speed;

sfc = phy_read(phydev, AT803X_SPECIFIC_FUNCTION_CONTROL);
if (sfc < 0)
return sfc;

- switch (FIELD_GET(AT803X_SS_SPEED_MASK, ss)) {
+ /* qca8081 takes the different bits for speed value from at803x */
+ if (phydev->drv->phy_id == QCA8081_PHY_ID)
+ speed = FIELD_GET(QCA808X_SS_SPEED_MASK, ss);
+ else
+ speed = FIELD_GET(AT803X_SS_SPEED_MASK, ss);
+
+ switch (speed) {
case AT803X_SS_SPEED_10:
phydev->speed = SPEED_10;
break;
@@ -998,6 +989,9 @@ static int at803x_read_status(struct phy_device *phydev)
case AT803X_SS_SPEED_1000:
phydev->speed = SPEED_1000;
break;
+ case QCA808X_SS_SPEED_2500:
+ phydev->speed = SPEED_2500;
+ break;
}
if (ss & AT803X_SS_DUPLEX)
phydev->duplex = DUPLEX_FULL;
@@ -1022,6 +1016,35 @@ static int at803x_read_status(struct phy_device *phydev)
}
}

+ return 0;
+}
+
+static int at803x_read_status(struct phy_device *phydev)
+{
+ int err, old_link = phydev->link;
+
+ /* Update the link, but return if there was an error */
+ err = genphy_update_link(phydev);
+ if (err)
+ return err;
+
+ /* why bother the PHY if nothing can have changed */
+ if (phydev->autoneg == AUTONEG_ENABLE && old_link && phydev->link)
+ return 0;
+
+ phydev->speed = SPEED_UNKNOWN;
+ phydev->duplex = DUPLEX_UNKNOWN;
+ phydev->pause = 0;
+ phydev->asym_pause = 0;
+
+ err = genphy_read_lpa(phydev);
+ if (err < 0)
+ return err;
+
+ err = at803x_read_specific_status(phydev);
+ if (err < 0)
+ return err;
+
if (phydev->autoneg == AUTONEG_ENABLE && phydev->autoneg_complete)
phy_resolve_aneg_pause(phydev);

@@ -1341,6 +1364,33 @@ static int qca83xx_config_init(struct phy_device *phydev)
return 0;
}

+static int qca808x_read_status(struct phy_device *phydev)
+{
+ int ret;
+
+ ret = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_10GBT_STAT);
+ if (ret < 0)
+ return ret;
+
+ linkmode_mod_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->lp_advertising,
+ ret & MDIO_AN_10GBT_STAT_LP2_5G);
+
+ ret = genphy_read_status(phydev);
+ if (ret)
+ return ret;
+
+ ret = at803x_read_specific_status(phydev);
+ if (ret < 0)
+ return ret;
+
+ if (phydev->link && phydev->speed == SPEED_2500)
+ phydev->interface = PHY_INTERFACE_MODE_2500BASEX;
+ else
+ phydev->interface = PHY_INTERFACE_MODE_SMII;
+
+ return 0;
+}
+
static struct phy_driver at803x_driver[] = {
{
/* Qualcomm Atheros AR8035 */
@@ -1494,6 +1544,7 @@ static struct phy_driver at803x_driver[] = {
.get_wol = at803x_get_wol,
.suspend = genphy_suspend,
.resume = genphy_resume,
+ .read_status = qca808x_read_status,
}, };

module_phy_driver(at803x_driver);
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

2021-10-22 12:10:34

by Luo Jie

[permalink] [raw]
Subject: [PATCH v4 10/14] net: phy: add genphy_c45_fast_retrain

Add generic fast retrain auto-negotiation function for C45 PHYs.

Signed-off-by: Luo Jie <[email protected]>
---
drivers/net/phy/phy-c45.c | 34 ++++++++++++++++++++++++++++++++++
include/linux/phy.h | 1 +
2 files changed, 35 insertions(+)

diff --git a/drivers/net/phy/phy-c45.c b/drivers/net/phy/phy-c45.c
index c617dbcad6ea..b01180e1f578 100644
--- a/drivers/net/phy/phy-c45.c
+++ b/drivers/net/phy/phy-c45.c
@@ -611,6 +611,40 @@ int genphy_c45_loopback(struct phy_device *phydev, bool enable)
}
EXPORT_SYMBOL_GPL(genphy_c45_loopback);

+/**
+ * genphy_c45_fast_retrain - configure fast retrain registers
+ * @phydev: target phy_device struct
+ *
+ * Description: If fast-retrain is enabled, we configure PHY as
+ * advertising fast retrain capable and THP Bypass Request, then
+ * enable fast retrain. If it is not enabled, we configure fast
+ * retrain disabled.
+ */
+int genphy_c45_fast_retrain(struct phy_device *phydev, bool enable)
+{
+ int ret;
+
+ if (!enable)
+ return phy_clear_bits_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_FSRT_CSR,
+ MDIO_PMA_10GBR_FSRT_ENABLE);
+
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->supported)) {
+ ret = phy_set_bits_mmd(phydev, MDIO_MMD_AN, MDIO_AN_10GBT_CTRL,
+ MDIO_AN_10GBT_CTRL_ADVFSRT2_5G);
+ if (ret)
+ return ret;
+
+ ret = phy_set_bits_mmd(phydev, MDIO_MMD_AN, MDIO_AN_CTRL2,
+ MDIO_AN_THP_BP2_5GT);
+ if (ret)
+ return ret;
+ }
+
+ return phy_set_bits_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_FSRT_CSR,
+ MDIO_PMA_10GBR_FSRT_ENABLE);
+}
+EXPORT_SYMBOL_GPL(genphy_c45_fast_retrain);
+
struct phy_driver genphy_c45_driver = {
.phy_id = 0xffffffff,
.phy_id_mask = 0xffffffff,
diff --git a/include/linux/phy.h b/include/linux/phy.h
index 736e1d1a47c4..04e90423fa88 100644
--- a/include/linux/phy.h
+++ b/include/linux/phy.h
@@ -1584,6 +1584,7 @@ int genphy_c45_config_aneg(struct phy_device *phydev);
int genphy_c45_loopback(struct phy_device *phydev, bool enable);
int genphy_c45_pma_resume(struct phy_device *phydev);
int genphy_c45_pma_suspend(struct phy_device *phydev);
+int genphy_c45_fast_retrain(struct phy_device *phydev, bool enable);

/* Generic C45 PHY driver */
extern struct phy_driver genphy_c45_driver;
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

2021-10-22 12:10:48

by Luo Jie

[permalink] [raw]
Subject: [PATCH v4 13/14] net: phy: adjust qca8081 master/slave seed value if link down

1. The master/slave seed needs to be updated when the link can't
be created.

2. The case where two qca8081 PHYs are connected each other and
master/slave seed is generated as the same value also needs
to be considered, so adding this code change into read_status
instead of link_change_notify.

Signed-off-by: Luo Jie <[email protected]>
---
drivers/net/phy/at803x.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index f372f6ab78f6..227b97639987 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -1562,6 +1562,22 @@ static int qca808x_read_status(struct phy_device *phydev)
else
phydev->interface = PHY_INTERFACE_MODE_SMII;

+ /* generate seed as a lower random value to make PHY linked as SLAVE easily,
+ * except for master/slave configuration fault detected.
+ * the reason for not putting this code into the function link_change_notify is
+ * the corner case where the link partner is also the qca8081 PHY and the seed
+ * value is configured as the same value, the link can't be up and no link change
+ * occurs.
+ */
+ if (!phydev->link) {
+ if (phydev->master_slave_state == MASTER_SLAVE_STATE_ERR) {
+ qca808x_phy_ms_seed_enable(phydev, false);
+ } else {
+ qca808x_phy_ms_random_seed_set(phydev);
+ qca808x_phy_ms_seed_enable(phydev, true);
+ }
+ }
+
return 0;
}

--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

2021-10-22 12:10:48

by Luo Jie

[permalink] [raw]
Subject: [PATCH v4 08/14] net: phy: add qca8081 config_aneg

Reuse at803x phy driver config_aneg excepting
adding 2500M auto-negotiation.

Signed-off-by: Luo Jie <[email protected]>
---
drivers/net/phy/at803x.c | 26 +++++++++++++++++++++++++-
1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 987497e39e50..8d230e4fd1a3 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -1101,7 +1101,30 @@ static int at803x_config_aneg(struct phy_device *phydev)
return ret;
}

- return genphy_config_aneg(phydev);
+ /* Do not restart auto-negotiation by setting ret to 0 defautly,
+ * when calling __genphy_config_aneg later.
+ */
+ ret = 0;
+
+ if (phydev->drv->phy_id == QCA8081_PHY_ID) {
+ int phy_ctrl = 0;
+
+ /* The reg MII_BMCR also needs to be configured for force mode, the
+ * genphy_config_aneg is also needed.
+ */
+ if (phydev->autoneg == AUTONEG_DISABLE)
+ genphy_c45_pma_setup_forced(phydev);
+
+ if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT, phydev->advertising))
+ phy_ctrl = MDIO_AN_10GBT_CTRL_ADV2_5G;
+
+ ret = phy_modify_mmd_changed(phydev, MDIO_MMD_AN, MDIO_AN_10GBT_CTRL,
+ MDIO_AN_10GBT_CTRL_ADV2_5G, phy_ctrl);
+ if (ret < 0)
+ return ret;
+ }
+
+ return __genphy_config_aneg(phydev, ret);
}

static int at803x_get_downshift(struct phy_device *phydev, u8 *d)
@@ -1552,6 +1575,7 @@ static struct phy_driver at803x_driver[] = {
.set_wol = at803x_set_wol,
.get_wol = at803x_get_wol,
.get_features = at803x_get_features,
+ .config_aneg = at803x_config_aneg,
.suspend = genphy_suspend,
.resume = genphy_resume,
.read_status = qca808x_read_status,
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

2021-10-22 12:12:27

by Luo Jie

[permalink] [raw]
Subject: [PATCH v4 12/14] net: phy: add qca8081 soft_reset and enable master/slave seed

qca8081 phy is a single port phy, configure
phy the lower seed value to make it linked as slave
mode easier.

Signed-off-by: Luo Jie <[email protected]>
---
drivers/net/phy/at803x.c | 48 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 48 insertions(+)

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 3096ed51dbae..f372f6ab78f6 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -215,6 +215,12 @@
#define QCA808X_PHY_MMD3_DEBUG_6 0xa011
#define QCA808X_MMD3_DEBUG_6_VALUE 0x5f85

+/* master/slave seed config */
+#define QCA808X_PHY_DEBUG_LOCAL_SEED 9
+#define QCA808X_MASTER_SLAVE_SEED_ENABLE BIT(1)
+#define QCA808X_MASTER_SLAVE_SEED_CFG GENMASK(12, 2)
+#define QCA808X_MASTER_SLAVE_SEED_RANGE 0x32
+
MODULE_DESCRIPTION("Qualcomm Atheros AR803x and QCA808X PHY driver");
MODULE_AUTHOR("Matus Ujhelyi");
MODULE_LICENSE("GPL");
@@ -1476,6 +1482,26 @@ static int qca808x_phy_fast_retrain_config(struct phy_device *phydev)
return 0;
}

+static int qca808x_phy_ms_random_seed_set(struct phy_device *phydev)
+{
+ u16 seed_value = (prandom_u32() % QCA808X_MASTER_SLAVE_SEED_RANGE);
+
+ return at803x_debug_reg_mask(phydev, QCA808X_PHY_DEBUG_LOCAL_SEED,
+ QCA808X_MASTER_SLAVE_SEED_CFG,
+ FIELD_PREP(QCA808X_MASTER_SLAVE_SEED_CFG, seed_value));
+}
+
+static int qca808x_phy_ms_seed_enable(struct phy_device *phydev, bool enable)
+{
+ u16 seed_enable = 0;
+
+ if (enable)
+ seed_enable = QCA808X_MASTER_SLAVE_SEED_ENABLE;
+
+ return at803x_debug_reg_mask(phydev, QCA808X_PHY_DEBUG_LOCAL_SEED,
+ QCA808X_MASTER_SLAVE_SEED_ENABLE, seed_enable);
+}
+
static int qca808x_config_init(struct phy_device *phydev)
{
int ret;
@@ -1497,6 +1523,16 @@ static int qca808x_config_init(struct phy_device *phydev)
if (ret)
return ret;

+ /* Configure lower ramdom seed to make phy linked as slave mode */
+ ret = qca808x_phy_ms_random_seed_set(phydev);
+ if (ret)
+ return ret;
+
+ /* Enable seed */
+ ret = qca808x_phy_ms_seed_enable(phydev, true);
+ if (ret)
+ return ret;
+
/* Configure adc threshold as 100mv for the link 10M */
return at803x_debug_reg_mask(phydev, QCA808X_PHY_DEBUG_ADC_THRESHOLD,
QCA808X_ADC_THRESHOLD_MASK, QCA808X_ADC_THRESHOLD_100MV);
@@ -1529,6 +1565,17 @@ static int qca808x_read_status(struct phy_device *phydev)
return 0;
}

+static int qca808x_soft_reset(struct phy_device *phydev)
+{
+ int ret;
+
+ ret = genphy_soft_reset(phydev);
+ if (ret < 0)
+ return ret;
+
+ return qca808x_phy_ms_seed_enable(phydev, true);
+}
+
static struct phy_driver at803x_driver[] = {
{
/* Qualcomm Atheros AR8035 */
@@ -1686,6 +1733,7 @@ static struct phy_driver at803x_driver[] = {
.resume = genphy_resume,
.read_status = qca808x_read_status,
.config_init = qca808x_config_init,
+ .soft_reset = qca808x_soft_reset,
}, };

module_phy_driver(at803x_driver);
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

2021-10-22 12:12:39

by Luo Jie

[permalink] [raw]
Subject: [PATCH v4 11/14] net: phy: add qca8081 config_init

Add the qca8081 phy driver config_init function, which includes:
1. Enable fast restrain.
2. Add 802.3az configurations.
3. Initialize ADC threshold as 100mv.

Signed-off-by: Luo Jie <[email protected]>
---
drivers/net/phy/at803x.c | 107 +++++++++++++++++++++++++++++++++++++++
1 file changed, 107 insertions(+)

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 8d230e4fd1a3..3096ed51dbae 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -170,6 +170,51 @@
#define AT803X_KEEP_PLL_ENABLED BIT(0)
#define AT803X_DISABLE_SMARTEEE BIT(1)

+/* ADC threshold */
+#define QCA808X_PHY_DEBUG_ADC_THRESHOLD 0x2c80
+#define QCA808X_ADC_THRESHOLD_MASK GENMASK(7, 0)
+#define QCA808X_ADC_THRESHOLD_80MV 0
+#define QCA808X_ADC_THRESHOLD_100MV 0xf0
+#define QCA808X_ADC_THRESHOLD_200MV 0x0f
+#define QCA808X_ADC_THRESHOLD_300MV 0xff
+
+/* CLD control */
+#define QCA808X_PHY_MMD3_ADDR_CLD_CTRL7 0x8007
+#define QCA808X_8023AZ_AFE_CTRL_MASK GENMASK(8, 4)
+#define QCA808X_8023AZ_AFE_EN 0x90
+
+/* AZ control */
+#define QCA808X_PHY_MMD3_AZ_TRAINING_CTRL 0x8008
+#define QCA808X_MMD3_AZ_TRAINING_VAL 0x1c32
+
+#define QCA808X_PHY_MMD1_MSE_THRESHOLD_20DB 0x8014
+#define QCA808X_MSE_THRESHOLD_20DB_VALUE 0x529
+
+#define QCA808X_PHY_MMD1_MSE_THRESHOLD_17DB 0x800E
+#define QCA808X_MSE_THRESHOLD_17DB_VALUE 0x341
+
+#define QCA808X_PHY_MMD1_MSE_THRESHOLD_27DB 0x801E
+#define QCA808X_MSE_THRESHOLD_27DB_VALUE 0x419
+
+#define QCA808X_PHY_MMD1_MSE_THRESHOLD_28DB 0x8020
+#define QCA808X_MSE_THRESHOLD_28DB_VALUE 0x341
+
+#define QCA808X_PHY_MMD7_TOP_OPTION1 0x901c
+#define QCA808X_TOP_OPTION1_DATA 0x0
+
+#define QCA808X_PHY_MMD3_DEBUG_1 0xa100
+#define QCA808X_MMD3_DEBUG_1_VALUE 0x9203
+#define QCA808X_PHY_MMD3_DEBUG_2 0xa101
+#define QCA808X_MMD3_DEBUG_2_VALUE 0x48ad
+#define QCA808X_PHY_MMD3_DEBUG_3 0xa103
+#define QCA808X_MMD3_DEBUG_3_VALUE 0x1698
+#define QCA808X_PHY_MMD3_DEBUG_4 0xa105
+#define QCA808X_MMD3_DEBUG_4_VALUE 0x8001
+#define QCA808X_PHY_MMD3_DEBUG_5 0xa106
+#define QCA808X_MMD3_DEBUG_5_VALUE 0x1111
+#define QCA808X_PHY_MMD3_DEBUG_6 0xa011
+#define QCA808X_MMD3_DEBUG_6_VALUE 0x5f85
+
MODULE_DESCRIPTION("Qualcomm Atheros AR803x and QCA808X PHY driver");
MODULE_AUTHOR("Matus Ujhelyi");
MODULE_LICENSE("GPL");
@@ -1396,6 +1441,67 @@ static int qca83xx_config_init(struct phy_device *phydev)
return 0;
}

+static int qca808x_phy_fast_retrain_config(struct phy_device *phydev)
+{
+ int ret;
+
+ /* Enable fast retrain */
+ ret = genphy_c45_fast_retrain(phydev, true);
+ if (ret)
+ return ret;
+
+ phy_write_mmd(phydev, MDIO_MMD_AN, QCA808X_PHY_MMD7_TOP_OPTION1,
+ QCA808X_TOP_OPTION1_DATA);
+ phy_write_mmd(phydev, MDIO_MMD_PMAPMD, QCA808X_PHY_MMD1_MSE_THRESHOLD_20DB,
+ QCA808X_MSE_THRESHOLD_20DB_VALUE);
+ phy_write_mmd(phydev, MDIO_MMD_PMAPMD, QCA808X_PHY_MMD1_MSE_THRESHOLD_17DB,
+ QCA808X_MSE_THRESHOLD_17DB_VALUE);
+ phy_write_mmd(phydev, MDIO_MMD_PMAPMD, QCA808X_PHY_MMD1_MSE_THRESHOLD_27DB,
+ QCA808X_MSE_THRESHOLD_27DB_VALUE);
+ phy_write_mmd(phydev, MDIO_MMD_PMAPMD, QCA808X_PHY_MMD1_MSE_THRESHOLD_28DB,
+ QCA808X_MSE_THRESHOLD_28DB_VALUE);
+ phy_write_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_DEBUG_1,
+ QCA808X_MMD3_DEBUG_1_VALUE);
+ phy_write_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_DEBUG_4,
+ QCA808X_MMD3_DEBUG_4_VALUE);
+ phy_write_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_DEBUG_5,
+ QCA808X_MMD3_DEBUG_5_VALUE);
+ phy_write_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_DEBUG_3,
+ QCA808X_MMD3_DEBUG_3_VALUE);
+ phy_write_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_DEBUG_6,
+ QCA808X_MMD3_DEBUG_6_VALUE);
+ phy_write_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_DEBUG_2,
+ QCA808X_MMD3_DEBUG_2_VALUE);
+
+ return 0;
+}
+
+static int qca808x_config_init(struct phy_device *phydev)
+{
+ int ret;
+
+ /* Active adc&vga on 802.3az for the link 1000M and 100M */
+ ret = phy_modify_mmd(phydev, MDIO_MMD_PCS, QCA808X_PHY_MMD3_ADDR_CLD_CTRL7,
+ QCA808X_8023AZ_AFE_CTRL_MASK, QCA808X_8023AZ_AFE_EN);
+ if (ret)
+ return ret;
+
+ /* Adjust the threshold on 802.3az for the link 1000M */
+ ret = phy_write_mmd(phydev, MDIO_MMD_PCS,
+ QCA808X_PHY_MMD3_AZ_TRAINING_CTRL, QCA808X_MMD3_AZ_TRAINING_VAL);
+ if (ret)
+ return ret;
+
+ /* Config the fast retrain for the link 2500M */
+ ret = qca808x_phy_fast_retrain_config(phydev);
+ if (ret)
+ return ret;
+
+ /* Configure adc threshold as 100mv for the link 10M */
+ return at803x_debug_reg_mask(phydev, QCA808X_PHY_DEBUG_ADC_THRESHOLD,
+ QCA808X_ADC_THRESHOLD_MASK, QCA808X_ADC_THRESHOLD_100MV);
+}
+
static int qca808x_read_status(struct phy_device *phydev)
{
int ret;
@@ -1579,6 +1685,7 @@ static struct phy_driver at803x_driver[] = {
.suspend = genphy_suspend,
.resume = genphy_resume,
.read_status = qca808x_read_status,
+ .config_init = qca808x_config_init,
}, };

module_phy_driver(at803x_driver);
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

2021-10-22 12:13:20

by Luo Jie

[permalink] [raw]
Subject: [PATCH v4 05/14] net: phy: add qca8081 ethernet phy driver

qca8081 is a single port ethernet phy chip that supports
10/100/1000/2500 Mbps mode.

Add the basic phy driver features, and reuse the at803x
phy driver functions.

Signed-off-by: Luo Jie <[email protected]>
---
drivers/net/phy/at803x.c | 17 ++++++++++++++++-
1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index ef21a84a3a55..460881320ebb 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -156,6 +156,8 @@
#define QCA8337_PHY_ID 0x004dd036
#define QCA8K_PHY_ID_MASK 0xffffffff

+#define QCA8081_PHY_ID 0x004dd101
+
#define QCA8K_DEVFLAGS_REVISION_MASK GENMASK(2, 0)

#define AT803X_PAGE_FIBER 0
@@ -165,7 +167,7 @@
#define AT803X_KEEP_PLL_ENABLED BIT(0)
#define AT803X_DISABLE_SMARTEEE BIT(1)

-MODULE_DESCRIPTION("Qualcomm Atheros AR803x PHY driver");
+MODULE_DESCRIPTION("Qualcomm Atheros AR803x and QCA808X PHY driver");
MODULE_AUTHOR("Matus Ujhelyi");
MODULE_LICENSE("GPL");

@@ -1480,6 +1482,18 @@ static struct phy_driver at803x_driver[] = {
.get_stats = at803x_get_stats,
.suspend = genphy_suspend,
.resume = genphy_resume,
+}, {
+ /* Qualcomm QCA8081 */
+ PHY_ID_MATCH_EXACT(QCA8081_PHY_ID),
+ .name = "Qualcomm QCA8081",
+ .config_intr = at803x_config_intr,
+ .handle_interrupt = at803x_handle_interrupt,
+ .get_tunable = at803x_get_tunable,
+ .set_tunable = at803x_set_tunable,
+ .set_wol = at803x_set_wol,
+ .get_wol = at803x_get_wol,
+ .suspend = genphy_suspend,
+ .resume = genphy_resume,
}, };

module_phy_driver(at803x_driver);
@@ -1493,6 +1507,7 @@ static struct mdio_device_id __maybe_unused atheros_tbl[] = {
{ PHY_ID_MATCH_EXACT(QCA8337_PHY_ID) },
{ PHY_ID_MATCH_EXACT(QCA8327_A_PHY_ID) },
{ PHY_ID_MATCH_EXACT(QCA8327_B_PHY_ID) },
+ { PHY_ID_MATCH_EXACT(QCA8081_PHY_ID) },
{ }
};

--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

2021-10-22 12:13:25

by Luo Jie

[permalink] [raw]
Subject: [PATCH v4 14/14] net: phy: add qca8081 cdt feature

To perform CDT of qca8081 phy:
1. disable hibernation.
2. force phy working in MDI mode.
3. force phy working in 1000BASE-T mode.
4. configure the related thresholds.

Signed-off-by: Luo Jie <[email protected]>
---
drivers/net/phy/at803x.c | 194 ++++++++++++++++++++++++++++++++++++++-
1 file changed, 191 insertions(+), 3 deletions(-)

diff --git a/drivers/net/phy/at803x.c b/drivers/net/phy/at803x.c
index 227b97639987..822ca7846046 100644
--- a/drivers/net/phy/at803x.c
+++ b/drivers/net/phy/at803x.c
@@ -221,6 +221,32 @@
#define QCA808X_MASTER_SLAVE_SEED_CFG GENMASK(12, 2)
#define QCA808X_MASTER_SLAVE_SEED_RANGE 0x32

+/* Hibernation yields lower power consumpiton in contrast with normal operation mode.
+ * when the copper cable is unplugged, the PHY enters into hibernation mode in about 10s.
+ */
+#define QCA808X_DBG_AN_TEST 0xb
+#define QCA808X_HIBERNATION_EN BIT(15)
+
+#define QCA808X_CDT_ENABLE_TEST BIT(15)
+#define QCA808X_CDT_INTER_CHECK_DIS BIT(13)
+#define QCA808X_CDT_LENGTH_UNIT BIT(10)
+
+#define QCA808X_MMD3_CDT_STATUS 0x8064
+#define QCA808X_MMD3_CDT_DIAG_PAIR_A 0x8065
+#define QCA808X_MMD3_CDT_DIAG_PAIR_B 0x8066
+#define QCA808X_MMD3_CDT_DIAG_PAIR_C 0x8067
+#define QCA808X_MMD3_CDT_DIAG_PAIR_D 0x8068
+#define QCA808X_CDT_DIAG_LENGTH GENMASK(7, 0)
+
+#define QCA808X_CDT_CODE_PAIR_A GENMASK(15, 12)
+#define QCA808X_CDT_CODE_PAIR_B GENMASK(11, 8)
+#define QCA808X_CDT_CODE_PAIR_C GENMASK(7, 4)
+#define QCA808X_CDT_CODE_PAIR_D GENMASK(3, 0)
+#define QCA808X_CDT_STATUS_STAT_FAIL 0
+#define QCA808X_CDT_STATUS_STAT_NORMAL 1
+#define QCA808X_CDT_STATUS_STAT_OPEN 2
+#define QCA808X_CDT_STATUS_STAT_SHORT 3
+
MODULE_DESCRIPTION("Qualcomm Atheros AR803x and QCA808X PHY driver");
MODULE_AUTHOR("Matus Ujhelyi");
MODULE_LICENSE("GPL");
@@ -1311,8 +1337,14 @@ static int at803x_cdt_start(struct phy_device *phydev, int pair)
{
u16 cdt;

- cdt = FIELD_PREP(AT803X_CDT_MDI_PAIR_MASK, pair) |
- AT803X_CDT_ENABLE_TEST;
+ /* qca8081 takes the different bit 15 to enable CDT test */
+ if (phydev->drv->phy_id == QCA8081_PHY_ID)
+ cdt = QCA808X_CDT_ENABLE_TEST |
+ QCA808X_CDT_LENGTH_UNIT |
+ QCA808X_CDT_INTER_CHECK_DIS;
+ else
+ cdt = FIELD_PREP(AT803X_CDT_MDI_PAIR_MASK, pair) |
+ AT803X_CDT_ENABLE_TEST;

return phy_write(phydev, AT803X_CDT, cdt);
}
@@ -1320,10 +1352,16 @@ static int at803x_cdt_start(struct phy_device *phydev, int pair)
static int at803x_cdt_wait_for_completion(struct phy_device *phydev)
{
int val, ret;
+ u16 cdt_en;
+
+ if (phydev->drv->phy_id == QCA8081_PHY_ID)
+ cdt_en = QCA808X_CDT_ENABLE_TEST;
+ else
+ cdt_en = AT803X_CDT_ENABLE_TEST;

/* One test run takes about 25ms */
ret = phy_read_poll_timeout(phydev, AT803X_CDT, val,
- !(val & AT803X_CDT_ENABLE_TEST),
+ !(val & cdt_en),
30000, 100000, true);

return ret < 0 ? ret : 0;
@@ -1592,6 +1630,153 @@ static int qca808x_soft_reset(struct phy_device *phydev)
return qca808x_phy_ms_seed_enable(phydev, true);
}

+static bool qca808x_cdt_fault_length_valid(int cdt_code)
+{
+ switch (cdt_code) {
+ case QCA808X_CDT_STATUS_STAT_SHORT:
+ case QCA808X_CDT_STATUS_STAT_OPEN:
+ return true;
+ default:
+ return false;
+ }
+}
+
+static int qca808x_cable_test_result_trans(int cdt_code)
+{
+ switch (cdt_code) {
+ case QCA808X_CDT_STATUS_STAT_NORMAL:
+ return ETHTOOL_A_CABLE_RESULT_CODE_OK;
+ case QCA808X_CDT_STATUS_STAT_SHORT:
+ return ETHTOOL_A_CABLE_RESULT_CODE_SAME_SHORT;
+ case QCA808X_CDT_STATUS_STAT_OPEN:
+ return ETHTOOL_A_CABLE_RESULT_CODE_OPEN;
+ case QCA808X_CDT_STATUS_STAT_FAIL:
+ default:
+ return ETHTOOL_A_CABLE_RESULT_CODE_UNSPEC;
+ }
+}
+
+static int qca808x_cdt_fault_length(struct phy_device *phydev, int pair)
+{
+ int val;
+ u32 cdt_length_reg = 0;
+
+ switch (pair) {
+ case ETHTOOL_A_CABLE_PAIR_A:
+ cdt_length_reg = QCA808X_MMD3_CDT_DIAG_PAIR_A;
+ break;
+ case ETHTOOL_A_CABLE_PAIR_B:
+ cdt_length_reg = QCA808X_MMD3_CDT_DIAG_PAIR_B;
+ break;
+ case ETHTOOL_A_CABLE_PAIR_C:
+ cdt_length_reg = QCA808X_MMD3_CDT_DIAG_PAIR_C;
+ break;
+ case ETHTOOL_A_CABLE_PAIR_D:
+ cdt_length_reg = QCA808X_MMD3_CDT_DIAG_PAIR_D;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ val = phy_read_mmd(phydev, MDIO_MMD_PCS, cdt_length_reg);
+ if (val < 0)
+ return val;
+
+ return (FIELD_GET(QCA808X_CDT_DIAG_LENGTH, val) * 824) / 10;
+}
+
+static int qca808x_cable_test_start(struct phy_device *phydev)
+{
+ int ret;
+
+ /* perform CDT with the following configs:
+ * 1. disable hibernation.
+ * 2. force PHY working in MDI mode.
+ * 3. for PHY working in 1000BaseT.
+ * 4. configure the threshold.
+ */
+
+ ret = at803x_debug_reg_mask(phydev, QCA808X_DBG_AN_TEST, QCA808X_HIBERNATION_EN, 0);
+ if (ret < 0)
+ return ret;
+
+ ret = at803x_config_mdix(phydev, ETH_TP_MDI);
+ if (ret < 0)
+ return ret;
+
+ /* Force 1000base-T needs to configure PMA/PMD and MII_BMCR */
+ phydev->duplex = DUPLEX_FULL;
+ phydev->speed = SPEED_1000;
+ ret = genphy_c45_pma_setup_forced(phydev);
+ if (ret < 0)
+ return ret;
+
+ ret = genphy_setup_forced(phydev);
+ if (ret < 0)
+ return ret;
+
+ /* configure the thresholds for open, short, pair ok test */
+ phy_write_mmd(phydev, MDIO_MMD_PCS, 0x8074, 0xc040);
+ phy_write_mmd(phydev, MDIO_MMD_PCS, 0x8076, 0xc040);
+ phy_write_mmd(phydev, MDIO_MMD_PCS, 0x8077, 0xa060);
+ phy_write_mmd(phydev, MDIO_MMD_PCS, 0x8078, 0xc050);
+ phy_write_mmd(phydev, MDIO_MMD_PCS, 0x807a, 0xc060);
+ phy_write_mmd(phydev, MDIO_MMD_PCS, 0x807e, 0xb060);
+
+ return 0;
+}
+
+static int qca808x_cable_test_get_status(struct phy_device *phydev, bool *finished)
+{
+ int ret, val;
+ int pair_a, pair_b, pair_c, pair_d;
+
+ *finished = false;
+
+ ret = at803x_cdt_start(phydev, 0);
+ if (ret)
+ return ret;
+
+ ret = at803x_cdt_wait_for_completion(phydev);
+ if (ret)
+ return ret;
+
+ val = phy_read_mmd(phydev, MDIO_MMD_PCS, QCA808X_MMD3_CDT_STATUS);
+ if (val < 0)
+ return val;
+
+ pair_a = FIELD_GET(QCA808X_CDT_CODE_PAIR_A, val);
+ pair_b = FIELD_GET(QCA808X_CDT_CODE_PAIR_B, val);
+ pair_c = FIELD_GET(QCA808X_CDT_CODE_PAIR_C, val);
+ pair_d = FIELD_GET(QCA808X_CDT_CODE_PAIR_D, val);
+
+ ethnl_cable_test_result(phydev, ETHTOOL_A_CABLE_PAIR_A,
+ qca808x_cable_test_result_trans(pair_a));
+ ethnl_cable_test_result(phydev, ETHTOOL_A_CABLE_PAIR_B,
+ qca808x_cable_test_result_trans(pair_b));
+ ethnl_cable_test_result(phydev, ETHTOOL_A_CABLE_PAIR_C,
+ qca808x_cable_test_result_trans(pair_c));
+ ethnl_cable_test_result(phydev, ETHTOOL_A_CABLE_PAIR_D,
+ qca808x_cable_test_result_trans(pair_d));
+
+ if (qca808x_cdt_fault_length_valid(pair_a))
+ ethnl_cable_test_fault_length(phydev, ETHTOOL_A_CABLE_PAIR_A,
+ qca808x_cdt_fault_length(phydev, ETHTOOL_A_CABLE_PAIR_A));
+ if (qca808x_cdt_fault_length_valid(pair_b))
+ ethnl_cable_test_fault_length(phydev, ETHTOOL_A_CABLE_PAIR_B,
+ qca808x_cdt_fault_length(phydev, ETHTOOL_A_CABLE_PAIR_B));
+ if (qca808x_cdt_fault_length_valid(pair_c))
+ ethnl_cable_test_fault_length(phydev, ETHTOOL_A_CABLE_PAIR_C,
+ qca808x_cdt_fault_length(phydev, ETHTOOL_A_CABLE_PAIR_C));
+ if (qca808x_cdt_fault_length_valid(pair_d))
+ ethnl_cable_test_fault_length(phydev, ETHTOOL_A_CABLE_PAIR_D,
+ qca808x_cdt_fault_length(phydev, ETHTOOL_A_CABLE_PAIR_D));
+
+ *finished = true;
+
+ return 0;
+}
+
static struct phy_driver at803x_driver[] = {
{
/* Qualcomm Atheros AR8035 */
@@ -1737,6 +1922,7 @@ static struct phy_driver at803x_driver[] = {
/* Qualcomm QCA8081 */
PHY_ID_MATCH_EXACT(QCA8081_PHY_ID),
.name = "Qualcomm QCA8081",
+ .flags = PHY_POLL_CABLE_TEST,
.config_intr = at803x_config_intr,
.handle_interrupt = at803x_handle_interrupt,
.get_tunable = at803x_get_tunable,
@@ -1750,6 +1936,8 @@ static struct phy_driver at803x_driver[] = {
.read_status = qca808x_read_status,
.config_init = qca808x_config_init,
.soft_reset = qca808x_soft_reset,
+ .cable_test_start = qca808x_cable_test_start,
+ .cable_test_get_status = qca808x_cable_test_get_status,
}, };

module_phy_driver(at803x_driver);
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

2021-10-22 12:13:45

by Luo Jie

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Subject: [PATCH v4 09/14] net: phy: add constants for fast retrain related register

Add the constants for 2.5G fast retrain capability
in 10G AN control register, fast retrain status and
control register and THP bypass register into mdio.h.

Signed-off-by: Luo Jie <[email protected]>
---
include/uapi/linux/mdio.h | 9 +++++++++
1 file changed, 9 insertions(+)

diff --git a/include/uapi/linux/mdio.h b/include/uapi/linux/mdio.h
index bdf77dffa5a4..c54e6eae5366 100644
--- a/include/uapi/linux/mdio.h
+++ b/include/uapi/linux/mdio.h
@@ -53,12 +53,14 @@
#define MDIO_AN_EEE_LPABLE 61 /* EEE link partner ability */
#define MDIO_AN_EEE_ADV2 62 /* EEE advertisement 2 */
#define MDIO_AN_EEE_LPABLE2 63 /* EEE link partner ability 2 */
+#define MDIO_AN_CTRL2 64 /* AN THP bypass request control */

/* Media-dependent registers. */
#define MDIO_PMA_10GBT_SWAPPOL 130 /* 10GBASE-T pair swap & polarity */
#define MDIO_PMA_10GBT_TXPWR 131 /* 10GBASE-T TX power control */
#define MDIO_PMA_10GBT_SNR 133 /* 10GBASE-T SNR margin, lane A.
* Lanes B-D are numbered 134-136. */
+#define MDIO_PMA_10GBR_FSRT_CSR 147 /* 10GBASE-R fast retrain status and control */
#define MDIO_PMA_10GBR_FECABLE 170 /* 10GBASE-R FEC ability */
#define MDIO_PCS_10GBX_STAT1 24 /* 10GBASE-X PCS status 1 */
#define MDIO_PCS_10GBRT_STAT1 32 /* 10GBASE-R/-T PCS status 1 */
@@ -239,6 +241,9 @@
#define MDIO_PMA_10GBR_FECABLE_ABLE 0x0001 /* FEC ability */
#define MDIO_PMA_10GBR_FECABLE_ERRABLE 0x0002 /* FEC error indic. ability */

+/* PMA 10GBASE-R Fast Retrain status and control register. */
+#define MDIO_PMA_10GBR_FSRT_ENABLE 0x0001 /* Fast retrain enable */
+
/* PCS 10GBASE-R/-T status register 1. */
#define MDIO_PCS_10GBRT_STAT1_BLKLK 0x0001 /* Block lock attained */

@@ -247,6 +252,7 @@
#define MDIO_PCS_10GBRT_STAT2_BER 0x3f00

/* AN 10GBASE-T control register. */
+#define MDIO_AN_10GBT_CTRL_ADVFSRT2_5G 0x0020 /* Advertise 2.5GBASE-T fast retrain */
#define MDIO_AN_10GBT_CTRL_ADV2_5G 0x0080 /* Advertise 2.5GBASE-T */
#define MDIO_AN_10GBT_CTRL_ADV5G 0x0100 /* Advertise 5GBASE-T */
#define MDIO_AN_10GBT_CTRL_ADV10G 0x1000 /* Advertise 10GBASE-T */
@@ -289,6 +295,9 @@
#define MDIO_EEE_2_5GT 0x0001 /* 2.5GT EEE cap */
#define MDIO_EEE_5GT 0x0002 /* 5GT EEE cap */

+/* AN MultiGBASE-T AN control 2 */
+#define MDIO_AN_THP_BP2_5GT 0x0008 /* 2.5GT THP bypass request */
+
/* 2.5G/5G Extended abilities register. */
#define MDIO_PMA_NG_EXTABLE_2_5GBT 0x0001 /* 2.5GBASET ability */
#define MDIO_PMA_NG_EXTABLE_5GBT 0x0002 /* 5GBASET ability */
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

2021-10-22 12:18:15

by Russell King (Oracle)

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Subject: Re: [PATCH v4 02/14] net: phy: at803x: use phy_modify()

On Fri, Oct 22, 2021 at 08:06:12PM +0800, Luo Jie wrote:
> Convert at803x_set_wol to use phy_modify.
>
> Signed-off-by: Luo Jie <[email protected]>

On v3, Andrew gave you a reviewed-by. You need to carry that forward
especially if nothing has changed.

Reviewed-by: Russell King (Oracle) <[email protected]>

--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!

2021-10-22 16:05:41

by Jakub Kicinski

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Subject: Re: [PATCH v4 05/14] net: phy: add qca8081 ethernet phy driver

On Fri, 22 Oct 2021 20:06:15 +0800 Luo Jie wrote:
> qca8081 is a single port ethernet phy chip that supports
> 10/100/1000/2500 Mbps mode.
>
> Add the basic phy driver features, and reuse the at803x
> phy driver functions.
>
> Signed-off-by: Luo Jie <[email protected]>

Does not apply cleanly to net-next/master. Please rebase and repost.

2021-10-23 01:56:40

by Luo Jie

[permalink] [raw]
Subject: Re: [PATCH v4 02/14] net: phy: at803x: use phy_modify()


On 10/22/2021 8:15 PM, Russell King (Oracle) wrote:
> On Fri, Oct 22, 2021 at 08:06:12PM +0800, Luo Jie wrote:
>> Convert at803x_set_wol to use phy_modify.
>>
>> Signed-off-by: Luo Jie <[email protected]>
> On v3, Andrew gave you a reviewed-by. You need to carry that forward
> especially if nothing has changed.
>
> Reviewed-by: Russell King (Oracle) <[email protected]>
Thanks Russell for this comments, will follow it.

2021-10-23 01:56:56

by Luo Jie

[permalink] [raw]
Subject: Re: [PATCH v4 05/14] net: phy: add qca8081 ethernet phy driver


On 10/23/2021 12:03 AM, Jakub Kicinski wrote:
> On Fri, 22 Oct 2021 20:06:15 +0800 Luo Jie wrote:
>> qca8081 is a single port ethernet phy chip that supports
>> 10/100/1000/2500 Mbps mode.
>>
>> Add the basic phy driver features, and reuse the at803x
>> phy driver functions.
>>
>> Signed-off-by: Luo Jie <[email protected]>
> Does not apply cleanly to net-next/master. Please rebase and repost.
Thanks Jakub for the comments, will update the tree and repost it.