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path: root/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
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Diffstat (limited to 'drivers/net/ethernet/amd/xgbe/xgbe-mdio.c')
-rw-r--r--drivers/net/ethernet/amd/xgbe/xgbe-mdio.c167
1 files changed, 80 insertions, 87 deletions
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
index 1b45cd73a258..4b5d625de8f0 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
@@ -126,6 +126,24 @@
#include "xgbe.h"
#include "xgbe-common.h"
+static int xgbe_phy_module_eeprom(struct xgbe_prv_data *pdata,
+ struct ethtool_eeprom *eeprom, u8 *data)
+{
+ if (!pdata->phy_if.phy_impl.module_eeprom)
+ return -ENXIO;
+
+ return pdata->phy_if.phy_impl.module_eeprom(pdata, eeprom, data);
+}
+
+static int xgbe_phy_module_info(struct xgbe_prv_data *pdata,
+ struct ethtool_modinfo *modinfo)
+{
+ if (!pdata->phy_if.phy_impl.module_info)
+ return -ENXIO;
+
+ return pdata->phy_if.phy_impl.module_info(pdata, modinfo);
+}
+
static void xgbe_an37_clear_interrupts(struct xgbe_prv_data *pdata)
{
int reg;
@@ -198,31 +216,8 @@ static void xgbe_an_clear_interrupts_all(struct xgbe_prv_data *pdata)
xgbe_an37_clear_interrupts(pdata);
}
-static void xgbe_an73_enable_kr_training(struct xgbe_prv_data *pdata)
-{
- unsigned int reg;
-
- reg = XMDIO_READ(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL);
-
- reg |= XGBE_KR_TRAINING_ENABLE;
- XMDIO_WRITE(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL, reg);
-}
-
-static void xgbe_an73_disable_kr_training(struct xgbe_prv_data *pdata)
-{
- unsigned int reg;
-
- reg = XMDIO_READ(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL);
-
- reg &= ~XGBE_KR_TRAINING_ENABLE;
- XMDIO_WRITE(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL, reg);
-}
-
static void xgbe_kr_mode(struct xgbe_prv_data *pdata)
{
- /* Enable KR training */
- xgbe_an73_enable_kr_training(pdata);
-
/* Set MAC to 10G speed */
pdata->hw_if.set_speed(pdata, SPEED_10000);
@@ -232,9 +227,6 @@ static void xgbe_kr_mode(struct xgbe_prv_data *pdata)
static void xgbe_kx_2500_mode(struct xgbe_prv_data *pdata)
{
- /* Disable KR training */
- xgbe_an73_disable_kr_training(pdata);
-
/* Set MAC to 2.5G speed */
pdata->hw_if.set_speed(pdata, SPEED_2500);
@@ -244,9 +236,6 @@ static void xgbe_kx_2500_mode(struct xgbe_prv_data *pdata)
static void xgbe_kx_1000_mode(struct xgbe_prv_data *pdata)
{
- /* Disable KR training */
- xgbe_an73_disable_kr_training(pdata);
-
/* Set MAC to 1G speed */
pdata->hw_if.set_speed(pdata, SPEED_1000);
@@ -260,9 +249,6 @@ static void xgbe_sfi_mode(struct xgbe_prv_data *pdata)
if (pdata->kr_redrv)
return xgbe_kr_mode(pdata);
- /* Disable KR training */
- xgbe_an73_disable_kr_training(pdata);
-
/* Set MAC to 10G speed */
pdata->hw_if.set_speed(pdata, SPEED_10000);
@@ -272,9 +258,6 @@ static void xgbe_sfi_mode(struct xgbe_prv_data *pdata)
static void xgbe_x_mode(struct xgbe_prv_data *pdata)
{
- /* Disable KR training */
- xgbe_an73_disable_kr_training(pdata);
-
/* Set MAC to 1G speed */
pdata->hw_if.set_speed(pdata, SPEED_1000);
@@ -284,9 +267,6 @@ static void xgbe_x_mode(struct xgbe_prv_data *pdata)
static void xgbe_sgmii_1000_mode(struct xgbe_prv_data *pdata)
{
- /* Disable KR training */
- xgbe_an73_disable_kr_training(pdata);
-
/* Set MAC to 1G speed */
pdata->hw_if.set_speed(pdata, SPEED_1000);
@@ -296,9 +276,6 @@ static void xgbe_sgmii_1000_mode(struct xgbe_prv_data *pdata)
static void xgbe_sgmii_100_mode(struct xgbe_prv_data *pdata)
{
- /* Disable KR training */
- xgbe_an73_disable_kr_training(pdata);
-
/* Set MAC to 1G speed */
pdata->hw_if.set_speed(pdata, SPEED_1000);
@@ -354,13 +331,15 @@ static void xgbe_switch_mode(struct xgbe_prv_data *pdata)
xgbe_change_mode(pdata, pdata->phy_if.phy_impl.switch_mode(pdata));
}
-static void xgbe_set_mode(struct xgbe_prv_data *pdata,
+static bool xgbe_set_mode(struct xgbe_prv_data *pdata,
enum xgbe_mode mode)
{
if (mode == xgbe_cur_mode(pdata))
- return;
+ return false;
xgbe_change_mode(pdata, mode);
+
+ return true;
}
static bool xgbe_use_mode(struct xgbe_prv_data *pdata,
@@ -407,6 +386,12 @@ static void xgbe_an73_set(struct xgbe_prv_data *pdata, bool enable,
{
unsigned int reg;
+ /* Disable KR training for now */
+ reg = XMDIO_READ(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL);
+ reg &= ~XGBE_KR_TRAINING_ENABLE;
+ XMDIO_WRITE(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL, reg);
+
+ /* Update AN settings */
reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_CTRL1);
reg &= ~MDIO_AN_CTRL1_ENABLE;
@@ -504,21 +489,19 @@ static enum xgbe_an xgbe_an73_tx_training(struct xgbe_prv_data *pdata,
XMDIO_WRITE(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_FECCTRL, reg);
/* Start KR training */
- reg = XMDIO_READ(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL);
- if (reg & XGBE_KR_TRAINING_ENABLE) {
- if (pdata->phy_if.phy_impl.kr_training_pre)
- pdata->phy_if.phy_impl.kr_training_pre(pdata);
+ if (pdata->phy_if.phy_impl.kr_training_pre)
+ pdata->phy_if.phy_impl.kr_training_pre(pdata);
- reg |= XGBE_KR_TRAINING_START;
- XMDIO_WRITE(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL,
- reg);
+ reg = XMDIO_READ(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL);
+ reg |= XGBE_KR_TRAINING_ENABLE;
+ reg |= XGBE_KR_TRAINING_START;
+ XMDIO_WRITE(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL, reg);
- netif_dbg(pdata, link, pdata->netdev,
- "KR training initiated\n");
+ netif_dbg(pdata, link, pdata->netdev,
+ "KR training initiated\n");
- if (pdata->phy_if.phy_impl.kr_training_post)
- pdata->phy_if.phy_impl.kr_training_post(pdata);
- }
+ if (pdata->phy_if.phy_impl.kr_training_post)
+ pdata->phy_if.phy_impl.kr_training_post(pdata);
return XGBE_AN_PAGE_RECEIVED;
}
@@ -1197,21 +1180,23 @@ static int xgbe_phy_config_fixed(struct xgbe_prv_data *pdata)
return 0;
}
-static int __xgbe_phy_config_aneg(struct xgbe_prv_data *pdata)
+static int __xgbe_phy_config_aneg(struct xgbe_prv_data *pdata, bool set_mode)
{
int ret;
+ mutex_lock(&pdata->an_mutex);
+
set_bit(XGBE_LINK_INIT, &pdata->dev_state);
pdata->link_check = jiffies;
ret = pdata->phy_if.phy_impl.an_config(pdata);
if (ret)
- return ret;
+ goto out;
if (pdata->phy.autoneg != AUTONEG_ENABLE) {
ret = xgbe_phy_config_fixed(pdata);
if (ret || !pdata->kr_redrv)
- return ret;
+ goto out;
netif_dbg(pdata, link, pdata->netdev, "AN redriver support\n");
} else {
@@ -1221,24 +1206,27 @@ static int __xgbe_phy_config_aneg(struct xgbe_prv_data *pdata)
/* Disable auto-negotiation interrupt */
disable_irq(pdata->an_irq);
- /* Start auto-negotiation in a supported mode */
- if (xgbe_use_mode(pdata, XGBE_MODE_KR)) {
- xgbe_set_mode(pdata, XGBE_MODE_KR);
- } else if (xgbe_use_mode(pdata, XGBE_MODE_KX_2500)) {
- xgbe_set_mode(pdata, XGBE_MODE_KX_2500);
- } else if (xgbe_use_mode(pdata, XGBE_MODE_KX_1000)) {
- xgbe_set_mode(pdata, XGBE_MODE_KX_1000);
- } else if (xgbe_use_mode(pdata, XGBE_MODE_SFI)) {
- xgbe_set_mode(pdata, XGBE_MODE_SFI);
- } else if (xgbe_use_mode(pdata, XGBE_MODE_X)) {
- xgbe_set_mode(pdata, XGBE_MODE_X);
- } else if (xgbe_use_mode(pdata, XGBE_MODE_SGMII_1000)) {
- xgbe_set_mode(pdata, XGBE_MODE_SGMII_1000);
- } else if (xgbe_use_mode(pdata, XGBE_MODE_SGMII_100)) {
- xgbe_set_mode(pdata, XGBE_MODE_SGMII_100);
- } else {
- enable_irq(pdata->an_irq);
- return -EINVAL;
+ if (set_mode) {
+ /* Start auto-negotiation in a supported mode */
+ if (xgbe_use_mode(pdata, XGBE_MODE_KR)) {
+ xgbe_set_mode(pdata, XGBE_MODE_KR);
+ } else if (xgbe_use_mode(pdata, XGBE_MODE_KX_2500)) {
+ xgbe_set_mode(pdata, XGBE_MODE_KX_2500);
+ } else if (xgbe_use_mode(pdata, XGBE_MODE_KX_1000)) {
+ xgbe_set_mode(pdata, XGBE_MODE_KX_1000);
+ } else if (xgbe_use_mode(pdata, XGBE_MODE_SFI)) {
+ xgbe_set_mode(pdata, XGBE_MODE_SFI);
+ } else if (xgbe_use_mode(pdata, XGBE_MODE_X)) {
+ xgbe_set_mode(pdata, XGBE_MODE_X);
+ } else if (xgbe_use_mode(pdata, XGBE_MODE_SGMII_1000)) {
+ xgbe_set_mode(pdata, XGBE_MODE_SGMII_1000);
+ } else if (xgbe_use_mode(pdata, XGBE_MODE_SGMII_100)) {
+ xgbe_set_mode(pdata, XGBE_MODE_SGMII_100);
+ } else {
+ enable_irq(pdata->an_irq);
+ ret = -EINVAL;
+ goto out;
+ }
}
/* Disable and stop any in progress auto-negotiation */
@@ -1258,16 +1246,7 @@ static int __xgbe_phy_config_aneg(struct xgbe_prv_data *pdata)
xgbe_an_init(pdata);
xgbe_an_restart(pdata);
- return 0;
-}
-
-static int xgbe_phy_config_aneg(struct xgbe_prv_data *pdata)
-{
- int ret;
-
- mutex_lock(&pdata->an_mutex);
-
- ret = __xgbe_phy_config_aneg(pdata);
+out:
if (ret)
set_bit(XGBE_LINK_ERR, &pdata->dev_state);
else
@@ -1278,6 +1257,16 @@ static int xgbe_phy_config_aneg(struct xgbe_prv_data *pdata)
return ret;
}
+static int xgbe_phy_config_aneg(struct xgbe_prv_data *pdata)
+{
+ return __xgbe_phy_config_aneg(pdata, true);
+}
+
+static int xgbe_phy_reconfig_aneg(struct xgbe_prv_data *pdata)
+{
+ return __xgbe_phy_config_aneg(pdata, false);
+}
+
static bool xgbe_phy_aneg_done(struct xgbe_prv_data *pdata)
{
return (pdata->an_result == XGBE_AN_COMPLETE);
@@ -1334,7 +1323,8 @@ static void xgbe_phy_status_result(struct xgbe_prv_data *pdata)
pdata->phy.duplex = DUPLEX_FULL;
- xgbe_set_mode(pdata, mode);
+ if (xgbe_set_mode(pdata, mode) && pdata->an_again)
+ xgbe_phy_reconfig_aneg(pdata);
}
static void xgbe_phy_status(struct xgbe_prv_data *pdata)
@@ -1639,4 +1629,7 @@ void xgbe_init_function_ptrs_phy(struct xgbe_phy_if *phy_if)
phy_if->phy_valid_speed = xgbe_phy_valid_speed;
phy_if->an_isr = xgbe_an_combined_isr;
+
+ phy_if->module_info = xgbe_phy_module_info;
+ phy_if->module_eeprom = xgbe_phy_module_eeprom;
}
generated by cgit v1.2.3-70-g09d2 (git 2.47.1) at 2024-12-27 12:04:23 +0000