amd-xgbe: Move the PHY support into amd-xgbe
The AMD XGBE device is intended to work with a specific integrated PHY
and that PHY is not meant to be a standalone PHY for use by other
devices. As such this patch removes the phylib driver and implements
the PHY support in the amd-xgbe driver (the majority of the logic from
the phylib driver is moved into the amd-xgbe driver).
Update the driver version to 1.0.1.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/amd/Kconfig b/drivers/net/ethernet/amd/Kconfig
index 4269160..acd5317 100644
--- a/drivers/net/ethernet/amd/Kconfig
+++ b/drivers/net/ethernet/amd/Kconfig
@@ -179,10 +179,8 @@
config AMD_XGBE
tristate "AMD 10GbE Ethernet driver"
- depends on (OF_NET || ACPI) && HAS_IOMEM && HAS_DMA
+ depends on ((OF_NET && OF_ADDRESS) || ACPI) && HAS_IOMEM && HAS_DMA
depends on ARM64 || COMPILE_TEST
- select PHYLIB
- select AMD_XGBE_PHY
select BITREVERSE
select CRC32
select PTP_1588_CLOCK
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-common.h b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
index 34c28aa..b6fa891 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-common.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-common.h
@@ -857,6 +857,48 @@
*/
#define PCS_MMD_SELECT 0xff
+/* SerDes integration register offsets */
+#define SIR0_KR_RT_1 0x002c
+#define SIR0_STATUS 0x0040
+#define SIR1_SPEED 0x0000
+
+/* SerDes integration register entry bit positions and sizes */
+#define SIR0_KR_RT_1_RESET_INDEX 11
+#define SIR0_KR_RT_1_RESET_WIDTH 1
+#define SIR0_STATUS_RX_READY_INDEX 0
+#define SIR0_STATUS_RX_READY_WIDTH 1
+#define SIR0_STATUS_TX_READY_INDEX 8
+#define SIR0_STATUS_TX_READY_WIDTH 1
+#define SIR1_SPEED_CDR_RATE_INDEX 12
+#define SIR1_SPEED_CDR_RATE_WIDTH 4
+#define SIR1_SPEED_DATARATE_INDEX 4
+#define SIR1_SPEED_DATARATE_WIDTH 2
+#define SIR1_SPEED_PLLSEL_INDEX 3
+#define SIR1_SPEED_PLLSEL_WIDTH 1
+#define SIR1_SPEED_RATECHANGE_INDEX 6
+#define SIR1_SPEED_RATECHANGE_WIDTH 1
+#define SIR1_SPEED_TXAMP_INDEX 8
+#define SIR1_SPEED_TXAMP_WIDTH 4
+#define SIR1_SPEED_WORDMODE_INDEX 0
+#define SIR1_SPEED_WORDMODE_WIDTH 3
+
+/* SerDes RxTx register offsets */
+#define RXTX_REG6 0x0018
+#define RXTX_REG20 0x0050
+#define RXTX_REG22 0x0058
+#define RXTX_REG114 0x01c8
+#define RXTX_REG129 0x0204
+
+/* SerDes RxTx register entry bit positions and sizes */
+#define RXTX_REG6_RESETB_RXD_INDEX 8
+#define RXTX_REG6_RESETB_RXD_WIDTH 1
+#define RXTX_REG20_BLWC_ENA_INDEX 2
+#define RXTX_REG20_BLWC_ENA_WIDTH 1
+#define RXTX_REG114_PQ_REG_INDEX 9
+#define RXTX_REG114_PQ_REG_WIDTH 7
+#define RXTX_REG129_RXDFE_CONFIG_INDEX 14
+#define RXTX_REG129_RXDFE_CONFIG_WIDTH 2
+
/* Descriptor/Packet entry bit positions and sizes */
#define RX_PACKET_ERRORS_CRC_INDEX 2
#define RX_PACKET_ERRORS_CRC_WIDTH 1
@@ -973,10 +1015,47 @@
#define TX_NORMAL_DESC2_VLAN_INSERT 0x2
/* MDIO undefined or vendor specific registers */
+#ifndef MDIO_PMA_10GBR_PMD_CTRL
+#define MDIO_PMA_10GBR_PMD_CTRL 0x0096
+#endif
+
+#ifndef MDIO_PMA_10GBR_FECCTRL
+#define MDIO_PMA_10GBR_FECCTRL 0x00ab
+#endif
+
+#ifndef MDIO_AN_XNP
+#define MDIO_AN_XNP 0x0016
+#endif
+
+#ifndef MDIO_AN_LPX
+#define MDIO_AN_LPX 0x0019
+#endif
+
#ifndef MDIO_AN_COMP_STAT
#define MDIO_AN_COMP_STAT 0x0030
#endif
+#ifndef MDIO_AN_INTMASK
+#define MDIO_AN_INTMASK 0x8001
+#endif
+
+#ifndef MDIO_AN_INT
+#define MDIO_AN_INT 0x8002
+#endif
+
+#ifndef MDIO_CTRL1_SPEED1G
+#define MDIO_CTRL1_SPEED1G (MDIO_CTRL1_SPEED10G & ~BMCR_SPEED100)
+#endif
+
+/* MDIO mask values */
+#define XGBE_XNP_MCF_NULL_MESSAGE 0x001
+#define XGBE_XNP_ACK_PROCESSED BIT(12)
+#define XGBE_XNP_MP_FORMATTED BIT(13)
+#define XGBE_XNP_NP_EXCHANGE BIT(15)
+
+#define XGBE_KR_TRAINING_START BIT(0)
+#define XGBE_KR_TRAINING_ENABLE BIT(1)
+
/* Bit setting and getting macros
* The get macro will extract the current bit field value from within
* the variable
@@ -1119,6 +1198,82 @@
ioread32((_pdata)->xpcs_regs + (_off))
/* Macros for building, reading or writing register values or bits
+ * within the register values of SerDes integration registers.
+ */
+#define XSIR_GET_BITS(_var, _prefix, _field) \
+ GET_BITS((_var), \
+ _prefix##_##_field##_INDEX, \
+ _prefix##_##_field##_WIDTH)
+
+#define XSIR_SET_BITS(_var, _prefix, _field, _val) \
+ SET_BITS((_var), \
+ _prefix##_##_field##_INDEX, \
+ _prefix##_##_field##_WIDTH, (_val))
+
+#define XSIR0_IOREAD(_pdata, _reg) \
+ ioread16((_pdata)->sir0_regs + _reg)
+
+#define XSIR0_IOREAD_BITS(_pdata, _reg, _field) \
+ GET_BITS(XSIR0_IOREAD((_pdata), _reg), \
+ _reg##_##_field##_INDEX, \
+ _reg##_##_field##_WIDTH)
+
+#define XSIR0_IOWRITE(_pdata, _reg, _val) \
+ iowrite16((_val), (_pdata)->sir0_regs + _reg)
+
+#define XSIR0_IOWRITE_BITS(_pdata, _reg, _field, _val) \
+do { \
+ u16 reg_val = XSIR0_IOREAD((_pdata), _reg); \
+ SET_BITS(reg_val, \
+ _reg##_##_field##_INDEX, \
+ _reg##_##_field##_WIDTH, (_val)); \
+ XSIR0_IOWRITE((_pdata), _reg, reg_val); \
+} while (0)
+
+#define XSIR1_IOREAD(_pdata, _reg) \
+ ioread16((_pdata)->sir1_regs + _reg)
+
+#define XSIR1_IOREAD_BITS(_pdata, _reg, _field) \
+ GET_BITS(XSIR1_IOREAD((_pdata), _reg), \
+ _reg##_##_field##_INDEX, \
+ _reg##_##_field##_WIDTH)
+
+#define XSIR1_IOWRITE(_pdata, _reg, _val) \
+ iowrite16((_val), (_pdata)->sir1_regs + _reg)
+
+#define XSIR1_IOWRITE_BITS(_pdata, _reg, _field, _val) \
+do { \
+ u16 reg_val = XSIR1_IOREAD((_pdata), _reg); \
+ SET_BITS(reg_val, \
+ _reg##_##_field##_INDEX, \
+ _reg##_##_field##_WIDTH, (_val)); \
+ XSIR1_IOWRITE((_pdata), _reg, reg_val); \
+} while (0)
+
+/* Macros for building, reading or writing register values or bits
+ * within the register values of SerDes RxTx registers.
+ */
+#define XRXTX_IOREAD(_pdata, _reg) \
+ ioread16((_pdata)->rxtx_regs + _reg)
+
+#define XRXTX_IOREAD_BITS(_pdata, _reg, _field) \
+ GET_BITS(XRXTX_IOREAD((_pdata), _reg), \
+ _reg##_##_field##_INDEX, \
+ _reg##_##_field##_WIDTH)
+
+#define XRXTX_IOWRITE(_pdata, _reg, _val) \
+ iowrite16((_val), (_pdata)->rxtx_regs + _reg)
+
+#define XRXTX_IOWRITE_BITS(_pdata, _reg, _field, _val) \
+do { \
+ u16 reg_val = XRXTX_IOREAD((_pdata), _reg); \
+ SET_BITS(reg_val, \
+ _reg##_##_field##_INDEX, \
+ _reg##_##_field##_WIDTH, (_val)); \
+ XRXTX_IOWRITE((_pdata), _reg, reg_val); \
+} while (0)
+
+/* Macros for building, reading or writing register values or bits
* using MDIO. Different from above because of the use of standardized
* Linux include values. No shifting is performed with the bit
* operations, everything works on mask values.
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
index dab3a1e..506e832 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-dev.c
@@ -910,23 +910,6 @@
else
mmd_address = (pdata->mdio_mmd << 16) | (mmd_reg & 0xffff);
- /* If the PCS is changing modes, match the MAC speed to it */
- if (((mmd_address >> 16) == MDIO_MMD_PCS) &&
- ((mmd_address & 0xffff) == MDIO_CTRL2)) {
- struct phy_device *phydev = pdata->phydev;
-
- if (mmd_data & MDIO_PCS_CTRL2_TYPE) {
- /* KX mode */
- if (phydev->supported & SUPPORTED_1000baseKX_Full)
- xgbe_set_gmii_speed(pdata);
- else
- xgbe_set_gmii_2500_speed(pdata);
- } else {
- /* KR mode */
- xgbe_set_xgmii_speed(pdata);
- }
- }
-
/* The PCS registers are accessed using mmio. The underlying APB3
* management interface uses indirect addressing to access the MMD
* register sets. This requires accessing of the PCS register in two
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
index f0fbe33..401703f 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c
@@ -437,12 +437,31 @@
DBGPR("<--xgbe_tx_timer\n");
}
-static void xgbe_init_tx_timers(struct xgbe_prv_data *pdata)
+static void xgbe_service(struct work_struct *work)
+{
+ struct xgbe_prv_data *pdata = container_of(work,
+ struct xgbe_prv_data,
+ service_work);
+
+ pdata->phy_if.phy_status(pdata);
+}
+
+static void xgbe_service_timer(unsigned long data)
+{
+ struct xgbe_prv_data *pdata = (struct xgbe_prv_data *)data;
+
+ schedule_work(&pdata->service_work);
+
+ mod_timer(&pdata->service_timer, jiffies + HZ);
+}
+
+static void xgbe_init_timers(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
- DBGPR("-->xgbe_init_tx_timers\n");
+ setup_timer(&pdata->service_timer, xgbe_service_timer,
+ (unsigned long)pdata);
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
@@ -452,16 +471,19 @@
setup_timer(&channel->tx_timer, xgbe_tx_timer,
(unsigned long)channel);
}
-
- DBGPR("<--xgbe_init_tx_timers\n");
}
-static void xgbe_stop_tx_timers(struct xgbe_prv_data *pdata)
+static void xgbe_start_timers(struct xgbe_prv_data *pdata)
+{
+ mod_timer(&pdata->service_timer, jiffies + HZ);
+}
+
+static void xgbe_stop_timers(struct xgbe_prv_data *pdata)
{
struct xgbe_channel *channel;
unsigned int i;
- DBGPR("-->xgbe_stop_tx_timers\n");
+ del_timer_sync(&pdata->service_timer);
channel = pdata->channel;
for (i = 0; i < pdata->channel_count; i++, channel++) {
@@ -470,8 +492,6 @@
del_timer_sync(&channel->tx_timer);
}
-
- DBGPR("<--xgbe_stop_tx_timers\n");
}
void xgbe_get_all_hw_features(struct xgbe_prv_data *pdata)
@@ -758,113 +778,14 @@
DBGPR("<--xgbe_free_rx_data\n");
}
-static void xgbe_adjust_link(struct net_device *netdev)
-{
- struct xgbe_prv_data *pdata = netdev_priv(netdev);
- struct xgbe_hw_if *hw_if = &pdata->hw_if;
- struct phy_device *phydev = pdata->phydev;
- int new_state = 0;
-
- if (!phydev)
- return;
-
- if (phydev->link) {
- /* Flow control support */
- if (pdata->pause_autoneg) {
- if (phydev->pause || phydev->asym_pause) {
- pdata->tx_pause = 1;
- pdata->rx_pause = 1;
- } else {
- pdata->tx_pause = 0;
- pdata->rx_pause = 0;
- }
- }
-
- if (pdata->tx_pause != pdata->phy_tx_pause) {
- hw_if->config_tx_flow_control(pdata);
- pdata->phy_tx_pause = pdata->tx_pause;
- }
-
- if (pdata->rx_pause != pdata->phy_rx_pause) {
- hw_if->config_rx_flow_control(pdata);
- pdata->phy_rx_pause = pdata->rx_pause;
- }
-
- /* Speed support */
- if (phydev->speed != pdata->phy_speed) {
- new_state = 1;
-
- switch (phydev->speed) {
- case SPEED_10000:
- hw_if->set_xgmii_speed(pdata);
- break;
-
- case SPEED_2500:
- hw_if->set_gmii_2500_speed(pdata);
- break;
-
- case SPEED_1000:
- hw_if->set_gmii_speed(pdata);
- break;
- }
- pdata->phy_speed = phydev->speed;
- }
-
- if (phydev->link != pdata->phy_link) {
- new_state = 1;
- pdata->phy_link = 1;
- }
- } else if (pdata->phy_link) {
- new_state = 1;
- pdata->phy_link = 0;
- pdata->phy_speed = SPEED_UNKNOWN;
- }
-
- if (new_state)
- phy_print_status(phydev);
-}
-
static int xgbe_phy_init(struct xgbe_prv_data *pdata)
{
- struct net_device *netdev = pdata->netdev;
- struct phy_device *phydev = pdata->phydev;
- int ret;
-
pdata->phy_link = -1;
pdata->phy_speed = SPEED_UNKNOWN;
pdata->phy_tx_pause = pdata->tx_pause;
pdata->phy_rx_pause = pdata->rx_pause;
- ret = phy_connect_direct(netdev, phydev, &xgbe_adjust_link,
- pdata->phy_mode);
- if (ret) {
- netdev_err(netdev, "phy_connect_direct failed\n");
- return ret;
- }
-
- if (!phydev->drv || (phydev->drv->phy_id == 0)) {
- netdev_err(netdev, "phy_id not valid\n");
- ret = -ENODEV;
- goto err_phy_connect;
- }
- netif_dbg(pdata, ifup, pdata->netdev,
- "phy_connect_direct succeeded for PHY %s\n",
- dev_name(&phydev->dev));
-
- return 0;
-
-err_phy_connect:
- phy_disconnect(phydev);
-
- return ret;
-}
-
-static void xgbe_phy_exit(struct xgbe_prv_data *pdata)
-{
- if (!pdata->phydev)
- return;
-
- phy_disconnect(pdata->phydev);
+ return pdata->phy_if.phy_reset(pdata);
}
int xgbe_powerdown(struct net_device *netdev, unsigned int caller)
@@ -889,13 +810,14 @@
netif_tx_stop_all_queues(netdev);
+ xgbe_stop_timers(pdata);
+ flush_workqueue(pdata->dev_workqueue);
+
hw_if->powerdown_tx(pdata);
hw_if->powerdown_rx(pdata);
xgbe_napi_disable(pdata, 0);
- phy_stop(pdata->phydev);
-
pdata->power_down = 1;
spin_unlock_irqrestore(&pdata->lock, flags);
@@ -924,8 +846,6 @@
pdata->power_down = 0;
- phy_start(pdata->phydev);
-
xgbe_napi_enable(pdata, 0);
hw_if->powerup_tx(pdata);
@@ -936,6 +856,8 @@
netif_tx_start_all_queues(netdev);
+ xgbe_start_timers(pdata);
+
spin_unlock_irqrestore(&pdata->lock, flags);
DBGPR("<--xgbe_powerup\n");
@@ -946,6 +868,7 @@
static int xgbe_start(struct xgbe_prv_data *pdata)
{
struct xgbe_hw_if *hw_if = &pdata->hw_if;
+ struct xgbe_phy_if *phy_if = &pdata->phy_if;
struct net_device *netdev = pdata->netdev;
int ret;
@@ -953,7 +876,9 @@
hw_if->init(pdata);
- phy_start(pdata->phydev);
+ ret = phy_if->phy_start(pdata);
+ if (ret)
+ goto err_phy;
xgbe_napi_enable(pdata, 1);
@@ -964,10 +889,11 @@
hw_if->enable_tx(pdata);
hw_if->enable_rx(pdata);
- xgbe_init_tx_timers(pdata);
-
netif_tx_start_all_queues(netdev);
+ xgbe_start_timers(pdata);
+ schedule_work(&pdata->service_work);
+
DBGPR("<--xgbe_start\n");
return 0;
@@ -975,8 +901,9 @@
err_napi:
xgbe_napi_disable(pdata, 1);
- phy_stop(pdata->phydev);
+ phy_if->phy_stop(pdata);
+err_phy:
hw_if->exit(pdata);
return ret;
@@ -985,6 +912,7 @@
static void xgbe_stop(struct xgbe_prv_data *pdata)
{
struct xgbe_hw_if *hw_if = &pdata->hw_if;
+ struct xgbe_phy_if *phy_if = &pdata->phy_if;
struct xgbe_channel *channel;
struct net_device *netdev = pdata->netdev;
struct netdev_queue *txq;
@@ -994,7 +922,8 @@
netif_tx_stop_all_queues(netdev);
- xgbe_stop_tx_timers(pdata);
+ xgbe_stop_timers(pdata);
+ flush_workqueue(pdata->dev_workqueue);
hw_if->disable_tx(pdata);
hw_if->disable_rx(pdata);
@@ -1003,7 +932,7 @@
xgbe_napi_disable(pdata, 1);
- phy_stop(pdata->phydev);
+ phy_if->phy_stop(pdata);
hw_if->exit(pdata);
@@ -1374,7 +1303,7 @@
ret = clk_prepare_enable(pdata->sysclk);
if (ret) {
netdev_alert(netdev, "dma clk_prepare_enable failed\n");
- goto err_phy_init;
+ return ret;
}
ret = clk_prepare_enable(pdata->ptpclk);
@@ -1399,14 +1328,17 @@
if (ret)
goto err_channels;
- /* Initialize the device restart and Tx timestamp work struct */
+ INIT_WORK(&pdata->service_work, xgbe_service);
INIT_WORK(&pdata->restart_work, xgbe_restart);
INIT_WORK(&pdata->tx_tstamp_work, xgbe_tx_tstamp);
+ xgbe_init_timers(pdata);
ret = xgbe_start(pdata);
if (ret)
goto err_rings;
+ clear_bit(XGBE_DOWN, &pdata->dev_state);
+
DBGPR("<--xgbe_open\n");
return 0;
@@ -1423,9 +1355,6 @@
err_sysclk:
clk_disable_unprepare(pdata->sysclk);
-err_phy_init:
- xgbe_phy_exit(pdata);
-
return ret;
}
@@ -1449,8 +1378,7 @@
clk_disable_unprepare(pdata->ptpclk);
clk_disable_unprepare(pdata->sysclk);
- /* Release the phy */
- xgbe_phy_exit(pdata);
+ set_bit(XGBE_DOWN, &pdata->dev_state);
DBGPR("<--xgbe_close\n");
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c b/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
index 95baa86..b24a78c3 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-ethtool.c
@@ -258,7 +258,6 @@
struct ethtool_pauseparam *pause)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
- struct phy_device *phydev = pdata->phydev;
int ret = 0;
DBGPR("-->xgbe_set_pauseparam\n");
@@ -268,19 +267,19 @@
pdata->pause_autoneg = pause->autoneg;
if (pause->autoneg) {
- phydev->advertising |= ADVERTISED_Pause;
- phydev->advertising |= ADVERTISED_Asym_Pause;
+ pdata->phy.advertising |= ADVERTISED_Pause;
+ pdata->phy.advertising |= ADVERTISED_Asym_Pause;
} else {
- phydev->advertising &= ~ADVERTISED_Pause;
- phydev->advertising &= ~ADVERTISED_Asym_Pause;
+ pdata->phy.advertising &= ~ADVERTISED_Pause;
+ pdata->phy.advertising &= ~ADVERTISED_Asym_Pause;
pdata->tx_pause = pause->tx_pause;
pdata->rx_pause = pause->rx_pause;
}
if (netif_running(netdev))
- ret = phy_start_aneg(phydev);
+ ret = pdata->phy_if.phy_config_aneg(pdata);
DBGPR("<--xgbe_set_pauseparam\n");
@@ -291,36 +290,39 @@
struct ethtool_cmd *cmd)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
- int ret;
DBGPR("-->xgbe_get_settings\n");
- if (!pdata->phydev)
- return -ENODEV;
+ cmd->phy_address = pdata->phy.address;
- ret = phy_ethtool_gset(pdata->phydev, cmd);
+ cmd->supported = pdata->phy.supported;
+ cmd->advertising = pdata->phy.advertising;
+ cmd->lp_advertising = pdata->phy.lp_advertising;
+
+ cmd->autoneg = pdata->phy.autoneg;
+ ethtool_cmd_speed_set(cmd, pdata->phy.speed);
+ cmd->duplex = pdata->phy.duplex;
+
+ cmd->port = PORT_NONE;
+ cmd->transceiver = XCVR_INTERNAL;
DBGPR("<--xgbe_get_settings\n");
- return ret;
+ return 0;
}
static int xgbe_set_settings(struct net_device *netdev,
struct ethtool_cmd *cmd)
{
struct xgbe_prv_data *pdata = netdev_priv(netdev);
- struct phy_device *phydev = pdata->phydev;
u32 speed;
int ret;
DBGPR("-->xgbe_set_settings\n");
- if (!pdata->phydev)
- return -ENODEV;
-
speed = ethtool_cmd_speed(cmd);
- if (cmd->phy_address != phydev->addr)
+ if (cmd->phy_address != pdata->phy.address)
return -EINVAL;
if ((cmd->autoneg != AUTONEG_ENABLE) &&
@@ -341,23 +343,23 @@
return -EINVAL;
}
- cmd->advertising &= phydev->supported;
+ cmd->advertising &= pdata->phy.supported;
if ((cmd->autoneg == AUTONEG_ENABLE) && !cmd->advertising)
return -EINVAL;
ret = 0;
- phydev->autoneg = cmd->autoneg;
- phydev->speed = speed;
- phydev->duplex = cmd->duplex;
- phydev->advertising = cmd->advertising;
+ pdata->phy.autoneg = cmd->autoneg;
+ pdata->phy.speed = speed;
+ pdata->phy.duplex = cmd->duplex;
+ pdata->phy.advertising = cmd->advertising;
if (cmd->autoneg == AUTONEG_ENABLE)
- phydev->advertising |= ADVERTISED_Autoneg;
+ pdata->phy.advertising |= ADVERTISED_Autoneg;
else
- phydev->advertising &= ~ADVERTISED_Autoneg;
+ pdata->phy.advertising &= ~ADVERTISED_Autoneg;
if (netif_running(netdev))
- ret = phy_start_aneg(phydev);
+ ret = pdata->phy_if.phy_config_aneg(pdata);
DBGPR("<--xgbe_set_settings\n");
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-main.c b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
index ae869d4..0c219b3 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-main.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-main.c
@@ -124,9 +124,11 @@
#include <linux/of.h>
#include <linux/of_net.h>
#include <linux/of_address.h>
+#include <linux/of_platform.h>
#include <linux/clk.h>
#include <linux/property.h>
#include <linux/acpi.h>
+#include <linux/mdio.h>
#include "xgbe.h"
#include "xgbe-common.h"
@@ -143,6 +145,42 @@
static const u32 default_msg_level = (NETIF_MSG_LINK | NETIF_MSG_IFDOWN |
NETIF_MSG_IFUP);
+static const u32 xgbe_serdes_blwc[] = {
+ XGBE_SPEED_1000_BLWC,
+ XGBE_SPEED_2500_BLWC,
+ XGBE_SPEED_10000_BLWC,
+};
+
+static const u32 xgbe_serdes_cdr_rate[] = {
+ XGBE_SPEED_1000_CDR,
+ XGBE_SPEED_2500_CDR,
+ XGBE_SPEED_10000_CDR,
+};
+
+static const u32 xgbe_serdes_pq_skew[] = {
+ XGBE_SPEED_1000_PQ,
+ XGBE_SPEED_2500_PQ,
+ XGBE_SPEED_10000_PQ,
+};
+
+static const u32 xgbe_serdes_tx_amp[] = {
+ XGBE_SPEED_1000_TXAMP,
+ XGBE_SPEED_2500_TXAMP,
+ XGBE_SPEED_10000_TXAMP,
+};
+
+static const u32 xgbe_serdes_dfe_tap_cfg[] = {
+ XGBE_SPEED_1000_DFE_TAP_CONFIG,
+ XGBE_SPEED_2500_DFE_TAP_CONFIG,
+ XGBE_SPEED_10000_DFE_TAP_CONFIG,
+};
+
+static const u32 xgbe_serdes_dfe_tap_ena[] = {
+ XGBE_SPEED_1000_DFE_TAP_ENABLE,
+ XGBE_SPEED_2500_DFE_TAP_ENABLE,
+ XGBE_SPEED_10000_DFE_TAP_ENABLE,
+};
+
static void xgbe_default_config(struct xgbe_prv_data *pdata)
{
DBGPR("-->xgbe_default_config\n");
@@ -160,8 +198,6 @@
pdata->rx_pause = 1;
pdata->phy_speed = SPEED_UNKNOWN;
pdata->power_down = 0;
- pdata->default_autoneg = AUTONEG_ENABLE;
- pdata->default_speed = SPEED_10000;
DBGPR("<--xgbe_default_config\n");
}
@@ -169,6 +205,7 @@
static void xgbe_init_all_fptrs(struct xgbe_prv_data *pdata)
{
xgbe_init_function_ptrs_dev(&pdata->hw_if);
+ xgbe_init_function_ptrs_phy(&pdata->phy_if);
xgbe_init_function_ptrs_desc(&pdata->desc_if);
}
@@ -255,23 +292,75 @@
return 0;
}
+
+static struct platform_device *xgbe_of_get_phy_pdev(struct xgbe_prv_data *pdata)
+{
+ struct device *dev = pdata->dev;
+ struct device_node *phy_node;
+ struct platform_device *phy_pdev;
+
+ phy_node = of_parse_phandle(dev->of_node, "phy-handle", 0);
+ if (!phy_node) {
+ dev_err(dev, "unable to locate phy device\n");
+ return NULL;
+ }
+
+ phy_pdev = of_find_device_by_node(phy_node);
+ of_node_put(phy_node);
+
+ return phy_pdev;
+}
#else /* CONFIG_OF */
static int xgbe_of_support(struct xgbe_prv_data *pdata)
{
return -EINVAL;
}
-#endif /*CONFIG_OF */
+
+static struct platform_device *xgbe_of_get_phy_pdev(struct xgbe_prv_data *pdata)
+{
+ return NULL;
+}
+#endif /* CONFIG_OF */
+
+static unsigned int xgbe_resource_count(struct platform_device *pdev,
+ unsigned int type)
+{
+ unsigned int count;
+ int i;
+
+ for (i = 0, count = 0; i < pdev->num_resources; i++) {
+ struct resource *res = &pdev->resource[i];
+
+ if (type == resource_type(res))
+ count++;
+ }
+
+ return count;
+}
+
+static struct platform_device *xgbe_get_phy_pdev(struct xgbe_prv_data *pdata)
+{
+ struct platform_device *phy_pdev;
+
+ if (pdata->use_acpi) {
+ get_device(pdata->dev);
+ phy_pdev = pdata->pdev;
+ } else {
+ phy_pdev = xgbe_of_get_phy_pdev(pdata);
+ }
+
+ return phy_pdev;
+}
static int xgbe_probe(struct platform_device *pdev)
{
struct xgbe_prv_data *pdata;
- struct xgbe_hw_if *hw_if;
- struct xgbe_desc_if *desc_if;
struct net_device *netdev;
- struct device *dev = &pdev->dev;
+ struct device *dev = &pdev->dev, *phy_dev;
+ struct platform_device *phy_pdev;
struct resource *res;
const char *phy_mode;
- unsigned int i;
+ unsigned int i, phy_memnum, phy_irqnum;
int ret;
DBGPR("--> xgbe_probe\n");
@@ -298,9 +387,34 @@
pdata->msg_enable = netif_msg_init(debug, default_msg_level);
+ set_bit(XGBE_DOWN, &pdata->dev_state);
+
/* Check if we should use ACPI or DT */
pdata->use_acpi = (!pdata->adev || acpi_disabled) ? 0 : 1;
+ phy_pdev = xgbe_get_phy_pdev(pdata);
+ if (!phy_pdev) {
+ dev_err(dev, "unable to obtain phy device\n");
+ ret = -EINVAL;
+ goto err_phydev;
+ }
+ phy_dev = &phy_pdev->dev;
+
+ if (pdev == phy_pdev) {
+ /* ACPI:
+ * The XGBE and PHY resources are grouped together with
+ * the PHY resources listed last
+ */
+ phy_memnum = xgbe_resource_count(pdev, IORESOURCE_MEM) - 3;
+ phy_irqnum = xgbe_resource_count(pdev, IORESOURCE_IRQ) - 1;
+ } else {
+ /* Device tree:
+ * The XGBE and PHY resources are separate
+ */
+ phy_memnum = 0;
+ phy_irqnum = 0;
+ }
+
/* Set and validate the number of descriptors for a ring */
BUILD_BUG_ON_NOT_POWER_OF_2(XGBE_TX_DESC_CNT);
pdata->tx_desc_count = XGBE_TX_DESC_CNT;
@@ -340,6 +454,36 @@
if (netif_msg_probe(pdata))
dev_dbg(dev, "xpcs_regs = %p\n", pdata->xpcs_regs);
+ res = platform_get_resource(phy_pdev, IORESOURCE_MEM, phy_memnum++);
+ pdata->rxtx_regs = devm_ioremap_resource(dev, res);
+ if (IS_ERR(pdata->rxtx_regs)) {
+ dev_err(dev, "rxtx ioremap failed\n");
+ ret = PTR_ERR(pdata->rxtx_regs);
+ goto err_io;
+ }
+ if (netif_msg_probe(pdata))
+ dev_dbg(dev, "rxtx_regs = %p\n", pdata->rxtx_regs);
+
+ res = platform_get_resource(phy_pdev, IORESOURCE_MEM, phy_memnum++);
+ pdata->sir0_regs = devm_ioremap_resource(dev, res);
+ if (IS_ERR(pdata->sir0_regs)) {
+ dev_err(dev, "sir0 ioremap failed\n");
+ ret = PTR_ERR(pdata->sir0_regs);
+ goto err_io;
+ }
+ if (netif_msg_probe(pdata))
+ dev_dbg(dev, "sir0_regs = %p\n", pdata->sir0_regs);
+
+ res = platform_get_resource(phy_pdev, IORESOURCE_MEM, phy_memnum++);
+ pdata->sir1_regs = devm_ioremap_resource(dev, res);
+ if (IS_ERR(pdata->sir1_regs)) {
+ dev_err(dev, "sir1 ioremap failed\n");
+ ret = PTR_ERR(pdata->sir1_regs);
+ goto err_io;
+ }
+ if (netif_msg_probe(pdata))
+ dev_dbg(dev, "sir1_regs = %p\n", pdata->sir1_regs);
+
/* Retrieve the MAC address */
ret = device_property_read_u8_array(dev, XGBE_MAC_ADDR_PROPERTY,
pdata->mac_addr,
@@ -366,6 +510,115 @@
if (device_property_present(dev, XGBE_DMA_IRQS_PROPERTY))
pdata->per_channel_irq = 1;
+ /* Retrieve the PHY speedset */
+ ret = device_property_read_u32(phy_dev, XGBE_SPEEDSET_PROPERTY,
+ &pdata->speed_set);
+ if (ret) {
+ dev_err(dev, "invalid %s property\n", XGBE_SPEEDSET_PROPERTY);
+ goto err_io;
+ }
+
+ switch (pdata->speed_set) {
+ case XGBE_SPEEDSET_1000_10000:
+ case XGBE_SPEEDSET_2500_10000:
+ break;
+ default:
+ dev_err(dev, "invalid %s property\n", XGBE_SPEEDSET_PROPERTY);
+ ret = -EINVAL;
+ goto err_io;
+ }
+
+ /* Retrieve the PHY configuration properties */
+ if (device_property_present(phy_dev, XGBE_BLWC_PROPERTY)) {
+ ret = device_property_read_u32_array(phy_dev,
+ XGBE_BLWC_PROPERTY,
+ pdata->serdes_blwc,
+ XGBE_SPEEDS);
+ if (ret) {
+ dev_err(dev, "invalid %s property\n",
+ XGBE_BLWC_PROPERTY);
+ goto err_io;
+ }
+ } else {
+ memcpy(pdata->serdes_blwc, xgbe_serdes_blwc,
+ sizeof(pdata->serdes_blwc));
+ }
+
+ if (device_property_present(phy_dev, XGBE_CDR_RATE_PROPERTY)) {
+ ret = device_property_read_u32_array(phy_dev,
+ XGBE_CDR_RATE_PROPERTY,
+ pdata->serdes_cdr_rate,
+ XGBE_SPEEDS);
+ if (ret) {
+ dev_err(dev, "invalid %s property\n",
+ XGBE_CDR_RATE_PROPERTY);
+ goto err_io;
+ }
+ } else {
+ memcpy(pdata->serdes_cdr_rate, xgbe_serdes_cdr_rate,
+ sizeof(pdata->serdes_cdr_rate));
+ }
+
+ if (device_property_present(phy_dev, XGBE_PQ_SKEW_PROPERTY)) {
+ ret = device_property_read_u32_array(phy_dev,
+ XGBE_PQ_SKEW_PROPERTY,
+ pdata->serdes_pq_skew,
+ XGBE_SPEEDS);
+ if (ret) {
+ dev_err(dev, "invalid %s property\n",
+ XGBE_PQ_SKEW_PROPERTY);
+ goto err_io;
+ }
+ } else {
+ memcpy(pdata->serdes_pq_skew, xgbe_serdes_pq_skew,
+ sizeof(pdata->serdes_pq_skew));
+ }
+
+ if (device_property_present(phy_dev, XGBE_TX_AMP_PROPERTY)) {
+ ret = device_property_read_u32_array(phy_dev,
+ XGBE_TX_AMP_PROPERTY,
+ pdata->serdes_tx_amp,
+ XGBE_SPEEDS);
+ if (ret) {
+ dev_err(dev, "invalid %s property\n",
+ XGBE_TX_AMP_PROPERTY);
+ goto err_io;
+ }
+ } else {
+ memcpy(pdata->serdes_tx_amp, xgbe_serdes_tx_amp,
+ sizeof(pdata->serdes_tx_amp));
+ }
+
+ if (device_property_present(phy_dev, XGBE_DFE_CFG_PROPERTY)) {
+ ret = device_property_read_u32_array(phy_dev,
+ XGBE_DFE_CFG_PROPERTY,
+ pdata->serdes_dfe_tap_cfg,
+ XGBE_SPEEDS);
+ if (ret) {
+ dev_err(dev, "invalid %s property\n",
+ XGBE_DFE_CFG_PROPERTY);
+ goto err_io;
+ }
+ } else {
+ memcpy(pdata->serdes_dfe_tap_cfg, xgbe_serdes_dfe_tap_cfg,
+ sizeof(pdata->serdes_dfe_tap_cfg));
+ }
+
+ if (device_property_present(phy_dev, XGBE_DFE_ENA_PROPERTY)) {
+ ret = device_property_read_u32_array(phy_dev,
+ XGBE_DFE_ENA_PROPERTY,
+ pdata->serdes_dfe_tap_ena,
+ XGBE_SPEEDS);
+ if (ret) {
+ dev_err(dev, "invalid %s property\n",
+ XGBE_DFE_ENA_PROPERTY);
+ goto err_io;
+ }
+ } else {
+ memcpy(pdata->serdes_dfe_tap_ena, xgbe_serdes_dfe_tap_ena,
+ sizeof(pdata->serdes_dfe_tap_ena));
+ }
+
/* Obtain device settings unique to ACPI/OF */
if (pdata->use_acpi)
ret = xgbe_acpi_support(pdata);
@@ -393,17 +646,23 @@
}
pdata->dev_irq = ret;
+ /* Get the auto-negotiation interrupt */
+ ret = platform_get_irq(phy_pdev, phy_irqnum++);
+ if (ret < 0) {
+ dev_err(dev, "platform_get_irq phy 0 failed\n");
+ goto err_io;
+ }
+ pdata->an_irq = ret;
+
netdev->irq = pdata->dev_irq;
netdev->base_addr = (unsigned long)pdata->xgmac_regs;
memcpy(netdev->dev_addr, pdata->mac_addr, netdev->addr_len);
/* Set all the function pointers */
xgbe_init_all_fptrs(pdata);
- hw_if = &pdata->hw_if;
- desc_if = &pdata->desc_if;
/* Issue software reset to device */
- hw_if->exit(pdata);
+ pdata->hw_if.exit(pdata);
/* Populate the hardware features */
xgbe_get_all_hw_features(pdata);
@@ -458,16 +717,8 @@
XGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, TCP4TE, 1);
XGMAC_SET_BITS(pdata->rss_options, MAC_RSSCR, UDP4TE, 1);
- /* Prepare to regsiter with MDIO */
- pdata->mii_bus_id = kasprintf(GFP_KERNEL, "%s", pdev->name);
- if (!pdata->mii_bus_id) {
- dev_err(dev, "failed to allocate mii bus id\n");
- ret = -ENOMEM;
- goto err_io;
- }
- ret = xgbe_mdio_register(pdata);
- if (ret)
- goto err_bus_id;
+ /* Call MDIO/PHY initialization routine */
+ pdata->phy_if.phy_init(pdata);
/* Set device operations */
netdev->netdev_ops = xgbe_get_netdev_ops();
@@ -512,26 +763,52 @@
ret = register_netdev(netdev);
if (ret) {
dev_err(dev, "net device registration failed\n");
- goto err_reg_netdev;
+ goto err_io;
+ }
+
+ /* Create the PHY/ANEG name based on netdev name */
+ snprintf(pdata->an_name, sizeof(pdata->an_name) - 1, "%s-pcs",
+ netdev_name(netdev));
+
+ /* Create workqueues */
+ pdata->dev_workqueue =
+ create_singlethread_workqueue(netdev_name(netdev));
+ if (!pdata->dev_workqueue) {
+ netdev_err(netdev, "device workqueue creation failed\n");
+ ret = -ENOMEM;
+ goto err_netdev;
+ }
+
+ pdata->an_workqueue =
+ create_singlethread_workqueue(pdata->an_name);
+ if (!pdata->an_workqueue) {
+ netdev_err(netdev, "phy workqueue creation failed\n");
+ ret = -ENOMEM;
+ goto err_wq;
}
xgbe_ptp_register(pdata);
xgbe_debugfs_init(pdata);
+ platform_device_put(phy_pdev);
+
netdev_notice(netdev, "net device enabled\n");
DBGPR("<-- xgbe_probe\n");
return 0;
-err_reg_netdev:
- xgbe_mdio_unregister(pdata);
+err_wq:
+ destroy_workqueue(pdata->dev_workqueue);
-err_bus_id:
- kfree(pdata->mii_bus_id);
+err_netdev:
+ unregister_netdev(netdev);
err_io:
+ platform_device_put(phy_pdev);
+
+err_phydev:
free_netdev(netdev);
err_alloc:
@@ -551,12 +828,14 @@
xgbe_ptp_unregister(pdata);
+ flush_workqueue(pdata->an_workqueue);
+ destroy_workqueue(pdata->an_workqueue);
+
+ flush_workqueue(pdata->dev_workqueue);
+ destroy_workqueue(pdata->dev_workqueue);
+
unregister_netdev(netdev);
- xgbe_mdio_unregister(pdata);
-
- kfree(pdata->mii_bus_id);
-
free_netdev(netdev);
DBGPR("<--xgbe_remove\n");
@@ -568,16 +847,17 @@
static int xgbe_suspend(struct device *dev)
{
struct net_device *netdev = dev_get_drvdata(dev);
- int ret;
+ struct xgbe_prv_data *pdata = netdev_priv(netdev);
+ int ret = 0;
DBGPR("-->xgbe_suspend\n");
- if (!netif_running(netdev)) {
- DBGPR("<--xgbe_dev_suspend\n");
- return -EINVAL;
- }
+ if (netif_running(netdev))
+ ret = xgbe_powerdown(netdev, XGMAC_DRIVER_CONTEXT);
- ret = xgbe_powerdown(netdev, XGMAC_DRIVER_CONTEXT);
+ pdata->lpm_ctrl = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
+ pdata->lpm_ctrl |= MDIO_CTRL1_LPOWER;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, pdata->lpm_ctrl);
DBGPR("<--xgbe_suspend\n");
@@ -587,16 +867,16 @@
static int xgbe_resume(struct device *dev)
{
struct net_device *netdev = dev_get_drvdata(dev);
- int ret;
+ struct xgbe_prv_data *pdata = netdev_priv(netdev);
+ int ret = 0;
DBGPR("-->xgbe_resume\n");
- if (!netif_running(netdev)) {
- DBGPR("<--xgbe_dev_resume\n");
- return -EINVAL;
- }
+ pdata->lpm_ctrl &= ~MDIO_CTRL1_LPOWER;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, pdata->lpm_ctrl);
- ret = xgbe_powerup(netdev, XGMAC_DRIVER_CONTEXT);
+ if (netif_running(netdev))
+ ret = xgbe_powerup(netdev, XGMAC_DRIVER_CONTEXT);
DBGPR("<--xgbe_resume\n");
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
index 532a67f..1ae4bfb 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-mdio.c
@@ -119,48 +119,1036 @@
#include <linux/mdio.h>
#include <linux/phy.h>
#include <linux/of.h>
+#include <linux/bitops.h>
+#include <linux/jiffies.h>
#include "xgbe.h"
#include "xgbe-common.h"
-static int xgbe_mdio_read(struct mii_bus *mii, int prtad, int mmd_reg)
+static void xgbe_an_enable_kr_training(struct xgbe_prv_data *pdata)
{
- struct xgbe_prv_data *pdata = mii->priv;
- struct xgbe_hw_if *hw_if = &pdata->hw_if;
- int mmd_data;
+ unsigned int reg;
- DBGPR_MDIO("-->xgbe_mdio_read: prtad=%#x mmd_reg=%#x\n",
- prtad, mmd_reg);
+ reg = XMDIO_READ(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL);
- mmd_data = hw_if->read_mmd_regs(pdata, prtad, mmd_reg);
-
- DBGPR_MDIO("<--xgbe_mdio_read: mmd_data=%#x\n", mmd_data);
-
- return mmd_data;
+ reg |= XGBE_KR_TRAINING_ENABLE;
+ XMDIO_WRITE(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL, reg);
}
-static int xgbe_mdio_write(struct mii_bus *mii, int prtad, int mmd_reg,
- u16 mmd_val)
+static void xgbe_an_disable_kr_training(struct xgbe_prv_data *pdata)
{
- struct xgbe_prv_data *pdata = mii->priv;
- struct xgbe_hw_if *hw_if = &pdata->hw_if;
- int mmd_data = mmd_val;
+ unsigned int reg;
- DBGPR_MDIO("-->xgbe_mdio_write: prtad=%#x mmd_reg=%#x mmd_data=%#x\n",
- prtad, mmd_reg, mmd_data);
+ reg = XMDIO_READ(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL);
- hw_if->write_mmd_regs(pdata, prtad, mmd_reg, mmd_data);
+ reg &= ~XGBE_KR_TRAINING_ENABLE;
+ XMDIO_WRITE(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL, reg);
+}
- DBGPR_MDIO("<--xgbe_mdio_write\n");
+static void xgbe_pcs_power_cycle(struct xgbe_prv_data *pdata)
+{
+ unsigned int reg;
+
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
+
+ reg |= MDIO_CTRL1_LPOWER;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, reg);
+
+ usleep_range(75, 100);
+
+ reg &= ~MDIO_CTRL1_LPOWER;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, reg);
+}
+
+static void xgbe_serdes_start_ratechange(struct xgbe_prv_data *pdata)
+{
+ /* Assert Rx and Tx ratechange */
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, RATECHANGE, 1);
+}
+
+static void xgbe_serdes_complete_ratechange(struct xgbe_prv_data *pdata)
+{
+ unsigned int wait;
+ u16 status;
+
+ /* Release Rx and Tx ratechange */
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, RATECHANGE, 0);
+
+ /* Wait for Rx and Tx ready */
+ wait = XGBE_RATECHANGE_COUNT;
+ while (wait--) {
+ usleep_range(50, 75);
+
+ status = XSIR0_IOREAD(pdata, SIR0_STATUS);
+ if (XSIR_GET_BITS(status, SIR0_STATUS, RX_READY) &&
+ XSIR_GET_BITS(status, SIR0_STATUS, TX_READY))
+ goto rx_reset;
+ }
+
+ netdev_dbg(pdata->netdev, "SerDes rx/tx not ready (%#hx)\n",
+ status);
+
+rx_reset:
+ /* Perform Rx reset for the DFE changes */
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG6, RESETB_RXD, 0);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG6, RESETB_RXD, 1);
+}
+
+static void xgbe_xgmii_mode(struct xgbe_prv_data *pdata)
+{
+ unsigned int reg;
+
+ /* Enable KR training */
+ xgbe_an_enable_kr_training(pdata);
+
+ /* Set MAC to 10G speed */
+ pdata->hw_if.set_xgmii_speed(pdata);
+
+ /* Set PCS to KR/10G speed */
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL2);
+ reg &= ~MDIO_PCS_CTRL2_TYPE;
+ reg |= MDIO_PCS_CTRL2_10GBR;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL2, reg);
+
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
+ reg &= ~MDIO_CTRL1_SPEEDSEL;
+ reg |= MDIO_CTRL1_SPEED10G;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, reg);
+
+ xgbe_pcs_power_cycle(pdata);
+
+ /* Set SerDes to 10G speed */
+ xgbe_serdes_start_ratechange(pdata);
+
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, DATARATE, XGBE_SPEED_10000_RATE);
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, WORDMODE, XGBE_SPEED_10000_WORD);
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, PLLSEL, XGBE_SPEED_10000_PLL);
+
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, CDR_RATE,
+ pdata->serdes_cdr_rate[XGBE_SPEED_10000]);
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, TXAMP,
+ pdata->serdes_tx_amp[XGBE_SPEED_10000]);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG20, BLWC_ENA,
+ pdata->serdes_blwc[XGBE_SPEED_10000]);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG114, PQ_REG,
+ pdata->serdes_pq_skew[XGBE_SPEED_10000]);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG129, RXDFE_CONFIG,
+ pdata->serdes_dfe_tap_cfg[XGBE_SPEED_10000]);
+ XRXTX_IOWRITE(pdata, RXTX_REG22,
+ pdata->serdes_dfe_tap_ena[XGBE_SPEED_10000]);
+
+ xgbe_serdes_complete_ratechange(pdata);
+}
+
+static void xgbe_gmii_2500_mode(struct xgbe_prv_data *pdata)
+{
+ unsigned int reg;
+
+ /* Disable KR training */
+ xgbe_an_disable_kr_training(pdata);
+
+ /* Set MAC to 2.5G speed */
+ pdata->hw_if.set_gmii_2500_speed(pdata);
+
+ /* Set PCS to KX/1G speed */
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL2);
+ reg &= ~MDIO_PCS_CTRL2_TYPE;
+ reg |= MDIO_PCS_CTRL2_10GBX;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL2, reg);
+
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
+ reg &= ~MDIO_CTRL1_SPEEDSEL;
+ reg |= MDIO_CTRL1_SPEED1G;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, reg);
+
+ xgbe_pcs_power_cycle(pdata);
+
+ /* Set SerDes to 2.5G speed */
+ xgbe_serdes_start_ratechange(pdata);
+
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, DATARATE, XGBE_SPEED_2500_RATE);
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, WORDMODE, XGBE_SPEED_2500_WORD);
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, PLLSEL, XGBE_SPEED_2500_PLL);
+
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, CDR_RATE,
+ pdata->serdes_cdr_rate[XGBE_SPEED_2500]);
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, TXAMP,
+ pdata->serdes_tx_amp[XGBE_SPEED_2500]);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG20, BLWC_ENA,
+ pdata->serdes_blwc[XGBE_SPEED_2500]);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG114, PQ_REG,
+ pdata->serdes_pq_skew[XGBE_SPEED_2500]);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG129, RXDFE_CONFIG,
+ pdata->serdes_dfe_tap_cfg[XGBE_SPEED_2500]);
+ XRXTX_IOWRITE(pdata, RXTX_REG22,
+ pdata->serdes_dfe_tap_ena[XGBE_SPEED_2500]);
+
+ xgbe_serdes_complete_ratechange(pdata);
+}
+
+static void xgbe_gmii_mode(struct xgbe_prv_data *pdata)
+{
+ unsigned int reg;
+
+ /* Disable KR training */
+ xgbe_an_disable_kr_training(pdata);
+
+ /* Set MAC to 1G speed */
+ pdata->hw_if.set_gmii_speed(pdata);
+
+ /* Set PCS to KX/1G speed */
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL2);
+ reg &= ~MDIO_PCS_CTRL2_TYPE;
+ reg |= MDIO_PCS_CTRL2_10GBX;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL2, reg);
+
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
+ reg &= ~MDIO_CTRL1_SPEEDSEL;
+ reg |= MDIO_CTRL1_SPEED1G;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, reg);
+
+ xgbe_pcs_power_cycle(pdata);
+
+ /* Set SerDes to 1G speed */
+ xgbe_serdes_start_ratechange(pdata);
+
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, DATARATE, XGBE_SPEED_1000_RATE);
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, WORDMODE, XGBE_SPEED_1000_WORD);
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, PLLSEL, XGBE_SPEED_1000_PLL);
+
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, CDR_RATE,
+ pdata->serdes_cdr_rate[XGBE_SPEED_1000]);
+ XSIR1_IOWRITE_BITS(pdata, SIR1_SPEED, TXAMP,
+ pdata->serdes_tx_amp[XGBE_SPEED_1000]);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG20, BLWC_ENA,
+ pdata->serdes_blwc[XGBE_SPEED_1000]);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG114, PQ_REG,
+ pdata->serdes_pq_skew[XGBE_SPEED_1000]);
+ XRXTX_IOWRITE_BITS(pdata, RXTX_REG129, RXDFE_CONFIG,
+ pdata->serdes_dfe_tap_cfg[XGBE_SPEED_1000]);
+ XRXTX_IOWRITE(pdata, RXTX_REG22,
+ pdata->serdes_dfe_tap_ena[XGBE_SPEED_1000]);
+
+ xgbe_serdes_complete_ratechange(pdata);
+}
+
+static void xgbe_cur_mode(struct xgbe_prv_data *pdata,
+ enum xgbe_mode *mode)
+{
+ unsigned int reg;
+
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL2);
+ if ((reg & MDIO_PCS_CTRL2_TYPE) == MDIO_PCS_CTRL2_10GBR)
+ *mode = XGBE_MODE_KR;
+ else
+ *mode = XGBE_MODE_KX;
+}
+
+static bool xgbe_in_kr_mode(struct xgbe_prv_data *pdata)
+{
+ enum xgbe_mode mode;
+
+ xgbe_cur_mode(pdata, &mode);
+
+ return (mode == XGBE_MODE_KR);
+}
+
+static void xgbe_switch_mode(struct xgbe_prv_data *pdata)
+{
+ /* If we are in KR switch to KX, and vice-versa */
+ if (xgbe_in_kr_mode(pdata)) {
+ if (pdata->speed_set == XGBE_SPEEDSET_1000_10000)
+ xgbe_gmii_mode(pdata);
+ else
+ xgbe_gmii_2500_mode(pdata);
+ } else {
+ xgbe_xgmii_mode(pdata);
+ }
+}
+
+static void xgbe_set_mode(struct xgbe_prv_data *pdata,
+ enum xgbe_mode mode)
+{
+ enum xgbe_mode cur_mode;
+
+ xgbe_cur_mode(pdata, &cur_mode);
+ if (mode != cur_mode)
+ xgbe_switch_mode(pdata);
+}
+
+static void xgbe_set_an(struct xgbe_prv_data *pdata, bool enable, bool restart)
+{
+ unsigned int reg;
+
+ reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_CTRL1);
+ reg &= ~MDIO_AN_CTRL1_ENABLE;
+
+ if (enable)
+ reg |= MDIO_AN_CTRL1_ENABLE;
+
+ if (restart)
+ reg |= MDIO_AN_CTRL1_RESTART;
+
+ XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_CTRL1, reg);
+}
+
+static void xgbe_restart_an(struct xgbe_prv_data *pdata)
+{
+ xgbe_set_an(pdata, true, true);
+}
+
+static void xgbe_disable_an(struct xgbe_prv_data *pdata)
+{
+ xgbe_set_an(pdata, false, false);
+}
+
+static enum xgbe_an xgbe_an_tx_training(struct xgbe_prv_data *pdata,
+ enum xgbe_rx *state)
+{
+ unsigned int ad_reg, lp_reg, reg;
+
+ *state = XGBE_RX_COMPLETE;
+
+ /* If we're not in KR mode then we're done */
+ if (!xgbe_in_kr_mode(pdata))
+ return XGBE_AN_PAGE_RECEIVED;
+
+ /* Enable/Disable FEC */
+ ad_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE + 2);
+ lp_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_LPA + 2);
+
+ reg = XMDIO_READ(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_FECCTRL);
+ reg &= ~(MDIO_PMA_10GBR_FECABLE_ABLE | MDIO_PMA_10GBR_FECABLE_ERRABLE);
+ if ((ad_reg & 0xc000) && (lp_reg & 0xc000))
+ reg |= pdata->fec_ability;
+
+ 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) {
+ XSIR0_IOWRITE_BITS(pdata, SIR0_KR_RT_1, RESET, 1);
+
+ reg |= XGBE_KR_TRAINING_START;
+ XMDIO_WRITE(pdata, MDIO_MMD_PMAPMD, MDIO_PMA_10GBR_PMD_CTRL,
+ reg);
+
+ XSIR0_IOWRITE_BITS(pdata, SIR0_KR_RT_1, RESET, 0);
+ }
+
+ return XGBE_AN_PAGE_RECEIVED;
+}
+
+static enum xgbe_an xgbe_an_tx_xnp(struct xgbe_prv_data *pdata,
+ enum xgbe_rx *state)
+{
+ u16 msg;
+
+ *state = XGBE_RX_XNP;
+
+ msg = XGBE_XNP_MCF_NULL_MESSAGE;
+ msg |= XGBE_XNP_MP_FORMATTED;
+
+ XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_XNP + 2, 0);
+ XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_XNP + 1, 0);
+ XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_XNP, msg);
+
+ return XGBE_AN_PAGE_RECEIVED;
+}
+
+static enum xgbe_an xgbe_an_rx_bpa(struct xgbe_prv_data *pdata,
+ enum xgbe_rx *state)
+{
+ unsigned int link_support;
+ unsigned int reg, ad_reg, lp_reg;
+
+ /* Read Base Ability register 2 first */
+ reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_LPA + 1);
+
+ /* Check for a supported mode, otherwise restart in a different one */
+ link_support = xgbe_in_kr_mode(pdata) ? 0x80 : 0x20;
+ if (!(reg & link_support))
+ return XGBE_AN_INCOMPAT_LINK;
+
+ /* Check Extended Next Page support */
+ ad_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE);
+ lp_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_LPA);
+
+ return ((ad_reg & XGBE_XNP_NP_EXCHANGE) ||
+ (lp_reg & XGBE_XNP_NP_EXCHANGE))
+ ? xgbe_an_tx_xnp(pdata, state)
+ : xgbe_an_tx_training(pdata, state);
+}
+
+static enum xgbe_an xgbe_an_rx_xnp(struct xgbe_prv_data *pdata,
+ enum xgbe_rx *state)
+{
+ unsigned int ad_reg, lp_reg;
+
+ /* Check Extended Next Page support */
+ ad_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_XNP);
+ lp_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_LPX);
+
+ return ((ad_reg & XGBE_XNP_NP_EXCHANGE) ||
+ (lp_reg & XGBE_XNP_NP_EXCHANGE))
+ ? xgbe_an_tx_xnp(pdata, state)
+ : xgbe_an_tx_training(pdata, state);
+}
+
+static enum xgbe_an xgbe_an_page_received(struct xgbe_prv_data *pdata)
+{
+ enum xgbe_rx *state;
+ unsigned long an_timeout;
+ enum xgbe_an ret;
+
+ if (!pdata->an_start) {
+ pdata->an_start = jiffies;
+ } else {
+ an_timeout = pdata->an_start +
+ msecs_to_jiffies(XGBE_AN_MS_TIMEOUT);
+ if (time_after(jiffies, an_timeout)) {
+ /* Auto-negotiation timed out, reset state */
+ pdata->kr_state = XGBE_RX_BPA;
+ pdata->kx_state = XGBE_RX_BPA;
+
+ pdata->an_start = jiffies;
+ }
+ }
+
+ state = xgbe_in_kr_mode(pdata) ? &pdata->kr_state
+ : &pdata->kx_state;
+
+ switch (*state) {
+ case XGBE_RX_BPA:
+ ret = xgbe_an_rx_bpa(pdata, state);
+ break;
+
+ case XGBE_RX_XNP:
+ ret = xgbe_an_rx_xnp(pdata, state);
+ break;
+
+ default:
+ ret = XGBE_AN_ERROR;
+ }
+
+ return ret;
+}
+
+static enum xgbe_an xgbe_an_incompat_link(struct xgbe_prv_data *pdata)
+{
+ /* Be sure we aren't looping trying to negotiate */
+ if (xgbe_in_kr_mode(pdata)) {
+ pdata->kr_state = XGBE_RX_ERROR;
+
+ if (!(pdata->phy.advertising & ADVERTISED_1000baseKX_Full) &&
+ !(pdata->phy.advertising & ADVERTISED_2500baseX_Full))
+ return XGBE_AN_NO_LINK;
+
+ if (pdata->kx_state != XGBE_RX_BPA)
+ return XGBE_AN_NO_LINK;
+ } else {
+ pdata->kx_state = XGBE_RX_ERROR;
+
+ if (!(pdata->phy.advertising & ADVERTISED_10000baseKR_Full))
+ return XGBE_AN_NO_LINK;
+
+ if (pdata->kr_state != XGBE_RX_BPA)
+ return XGBE_AN_NO_LINK;
+ }
+
+ xgbe_disable_an(pdata);
+
+ xgbe_switch_mode(pdata);
+
+ xgbe_restart_an(pdata);
+
+ return XGBE_AN_INCOMPAT_LINK;
+}
+
+static irqreturn_t xgbe_an_isr(int irq, void *data)
+{
+ struct xgbe_prv_data *pdata = (struct xgbe_prv_data *)data;
+
+ /* Interrupt reason must be read and cleared outside of IRQ context */
+ disable_irq_nosync(pdata->an_irq);
+
+ queue_work(pdata->an_workqueue, &pdata->an_irq_work);
+
+ return IRQ_HANDLED;
+}
+
+static void xgbe_an_irq_work(struct work_struct *work)
+{
+ struct xgbe_prv_data *pdata = container_of(work,
+ struct xgbe_prv_data,
+ an_irq_work);
+
+ /* Avoid a race between enabling the IRQ and exiting the work by
+ * waiting for the work to finish and then queueing it
+ */
+ flush_work(&pdata->an_work);
+ queue_work(pdata->an_workqueue, &pdata->an_work);
+}
+
+static void xgbe_an_state_machine(struct work_struct *work)
+{
+ struct xgbe_prv_data *pdata = container_of(work,
+ struct xgbe_prv_data,
+ an_work);
+ enum xgbe_an cur_state = pdata->an_state;
+ unsigned int int_reg, int_mask;
+
+ mutex_lock(&pdata->an_mutex);
+
+ /* Read the interrupt */
+ int_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_INT);
+ if (!int_reg)
+ goto out;
+
+next_int:
+ if (int_reg & XGBE_AN_PG_RCV) {
+ pdata->an_state = XGBE_AN_PAGE_RECEIVED;
+ int_mask = XGBE_AN_PG_RCV;
+ } else if (int_reg & XGBE_AN_INC_LINK) {
+ pdata->an_state = XGBE_AN_INCOMPAT_LINK;
+ int_mask = XGBE_AN_INC_LINK;
+ } else if (int_reg & XGBE_AN_INT_CMPLT) {
+ pdata->an_state = XGBE_AN_COMPLETE;
+ int_mask = XGBE_AN_INT_CMPLT;
+ } else {
+ pdata->an_state = XGBE_AN_ERROR;
+ int_mask = 0;
+ }
+
+ /* Clear the interrupt to be processed */
+ int_reg &= ~int_mask;
+ XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INT, int_reg);
+
+ pdata->an_result = pdata->an_state;
+
+again:
+ cur_state = pdata->an_state;
+
+ switch (pdata->an_state) {
+ case XGBE_AN_READY:
+ pdata->an_supported = 0;
+ break;
+
+ case XGBE_AN_PAGE_RECEIVED:
+ pdata->an_state = xgbe_an_page_received(pdata);
+ pdata->an_supported++;
+ break;
+
+ case XGBE_AN_INCOMPAT_LINK:
+ pdata->an_supported = 0;
+ pdata->parallel_detect = 0;
+ pdata->an_state = xgbe_an_incompat_link(pdata);
+ break;
+
+ case XGBE_AN_COMPLETE:
+ pdata->parallel_detect = pdata->an_supported ? 0 : 1;
+ netdev_dbg(pdata->netdev, "%s successful\n",
+ pdata->an_supported ? "Auto negotiation"
+ : "Parallel detection");
+ break;
+
+ case XGBE_AN_NO_LINK:
+ break;
+
+ default:
+ pdata->an_state = XGBE_AN_ERROR;
+ }
+
+ if (pdata->an_state == XGBE_AN_NO_LINK) {
+ int_reg = 0;
+ XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INT, 0);
+ } else if (pdata->an_state == XGBE_AN_ERROR) {
+ netdev_err(pdata->netdev,
+ "error during auto-negotiation, state=%u\n",
+ cur_state);
+
+ int_reg = 0;
+ XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INT, 0);
+ }
+
+ if (pdata->an_state >= XGBE_AN_COMPLETE) {
+ pdata->an_result = pdata->an_state;
+ pdata->an_state = XGBE_AN_READY;
+ pdata->kr_state = XGBE_RX_BPA;
+ pdata->kx_state = XGBE_RX_BPA;
+ pdata->an_start = 0;
+ }
+
+ if (cur_state != pdata->an_state)
+ goto again;
+
+ if (int_reg)
+ goto next_int;
+
+out:
+ enable_irq(pdata->an_irq);
+
+ mutex_unlock(&pdata->an_mutex);
+}
+
+static void xgbe_an_init(struct xgbe_prv_data *pdata)
+{
+ unsigned int reg;
+
+ /* Set up Advertisement register 3 first */
+ reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE + 2);
+ if (pdata->phy.advertising & ADVERTISED_10000baseR_FEC)
+ reg |= 0xc000;
+ else
+ reg &= ~0xc000;
+
+ XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE + 2, reg);
+
+ /* Set up Advertisement register 2 next */
+ reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE + 1);
+ if (pdata->phy.advertising & ADVERTISED_10000baseKR_Full)
+ reg |= 0x80;
+ else
+ reg &= ~0x80;
+
+ if ((pdata->phy.advertising & ADVERTISED_1000baseKX_Full) ||
+ (pdata->phy.advertising & ADVERTISED_2500baseX_Full))
+ reg |= 0x20;
+ else
+ reg &= ~0x20;
+
+ XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE + 1, reg);
+
+ /* Set up Advertisement register 1 last */
+ reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE);
+ if (pdata->phy.advertising & ADVERTISED_Pause)
+ reg |= 0x400;
+ else
+ reg &= ~0x400;
+
+ if (pdata->phy.advertising & ADVERTISED_Asym_Pause)
+ reg |= 0x800;
+ else
+ reg &= ~0x800;
+
+ /* We don't intend to perform XNP */
+ reg &= ~XGBE_XNP_NP_EXCHANGE;
+
+ XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE, reg);
+}
+
+static const char *xgbe_phy_speed_string(int speed)
+{
+ switch (speed) {
+ case SPEED_1000:
+ return "1Gbps";
+ case SPEED_2500:
+ return "2.5Gbps";
+ case SPEED_10000:
+ return "10Gbps";
+ case SPEED_UNKNOWN:
+ return "Unknown";
+ default:
+ return "Unsupported";
+ }
+}
+
+static void xgbe_phy_print_status(struct xgbe_prv_data *pdata)
+{
+ if (pdata->phy.link)
+ netdev_info(pdata->netdev,
+ "Link is Up - %s/%s - flow control %s\n",
+ xgbe_phy_speed_string(pdata->phy.speed),
+ pdata->phy.duplex == DUPLEX_FULL ? "Full" : "Half",
+ pdata->phy.pause ? "rx/tx" : "off");
+ else
+ netdev_info(pdata->netdev, "Link is Down\n");
+}
+
+static void xgbe_phy_adjust_link(struct xgbe_prv_data *pdata)
+{
+ int new_state = 0;
+
+ if (pdata->phy.link) {
+ /* Flow control support */
+ if (pdata->pause_autoneg) {
+ if (pdata->phy.pause || pdata->phy.asym_pause) {
+ pdata->tx_pause = 1;
+ pdata->rx_pause = 1;
+ } else {
+ pdata->tx_pause = 0;
+ pdata->rx_pause = 0;
+ }
+ }
+
+ if (pdata->tx_pause != pdata->phy_tx_pause) {
+ pdata->hw_if.config_tx_flow_control(pdata);
+ pdata->phy_tx_pause = pdata->tx_pause;
+ }
+
+ if (pdata->rx_pause != pdata->phy_rx_pause) {
+ pdata->hw_if.config_rx_flow_control(pdata);
+ pdata->phy_rx_pause = pdata->rx_pause;
+ }
+
+ /* Speed support */
+ if (pdata->phy_speed != pdata->phy.speed) {
+ new_state = 1;
+ pdata->phy_speed = pdata->phy.speed;
+ }
+
+ if (pdata->phy_link != pdata->phy.link) {
+ new_state = 1;
+ pdata->phy_link = pdata->phy.link;
+ }
+ } else if (pdata->phy_link) {
+ new_state = 1;
+ pdata->phy_link = 0;
+ pdata->phy_speed = SPEED_UNKNOWN;
+ }
+
+ if (new_state && netif_msg_link(pdata))
+ xgbe_phy_print_status(pdata);
+}
+
+static int xgbe_phy_config_fixed(struct xgbe_prv_data *pdata)
+{
+ /* Disable auto-negotiation */
+ xgbe_disable_an(pdata);
+
+ /* Validate/Set specified speed */
+ switch (pdata->phy.speed) {
+ case SPEED_10000:
+ xgbe_set_mode(pdata, XGBE_MODE_KR);
+ break;
+
+ case SPEED_2500:
+ case SPEED_1000:
+ xgbe_set_mode(pdata, XGBE_MODE_KX);
+ break;
+
+ default:
+ return -EINVAL;
+ }
+
+ /* Validate duplex mode */
+ if (pdata->phy.duplex != DUPLEX_FULL)
+ return -EINVAL;
+
+ pdata->phy.pause = 0;
+ pdata->phy.asym_pause = 0;
return 0;
}
-void xgbe_dump_phy_registers(struct xgbe_prv_data *pdata)
+static int __xgbe_phy_config_aneg(struct xgbe_prv_data *pdata)
+{
+ set_bit(XGBE_LINK_INIT, &pdata->dev_state);
+ pdata->link_check = jiffies;
+
+ if (pdata->phy.autoneg != AUTONEG_ENABLE)
+ return xgbe_phy_config_fixed(pdata);
+
+ /* Disable auto-negotiation interrupt */
+ disable_irq(pdata->an_irq);
+
+ /* Start auto-negotiation in a supported mode */
+ if (pdata->phy.advertising & ADVERTISED_10000baseKR_Full) {
+ xgbe_set_mode(pdata, XGBE_MODE_KR);
+ } else if ((pdata->phy.advertising & ADVERTISED_1000baseKX_Full) ||
+ (pdata->phy.advertising & ADVERTISED_2500baseX_Full)) {
+ xgbe_set_mode(pdata, XGBE_MODE_KX);
+ } else {
+ enable_irq(pdata->an_irq);
+ return -EINVAL;
+ }
+
+ /* Disable and stop any in progress auto-negotiation */
+ xgbe_disable_an(pdata);
+
+ /* Clear any auto-negotitation interrupts */
+ XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INT, 0);
+
+ pdata->an_result = XGBE_AN_READY;
+ pdata->an_state = XGBE_AN_READY;
+ pdata->kr_state = XGBE_RX_BPA;
+ pdata->kx_state = XGBE_RX_BPA;
+
+ /* Re-enable auto-negotiation interrupt */
+ enable_irq(pdata->an_irq);
+
+ /* Set up advertisement registers based on current settings */
+ xgbe_an_init(pdata);
+
+ /* Enable and start auto-negotiation */
+ xgbe_restart_an(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);
+ if (ret)
+ set_bit(XGBE_LINK_ERR, &pdata->dev_state);
+ else
+ clear_bit(XGBE_LINK_ERR, &pdata->dev_state);
+
+ mutex_unlock(&pdata->an_mutex);
+
+ return ret;
+}
+
+static bool xgbe_phy_aneg_done(struct xgbe_prv_data *pdata)
+{
+ return (pdata->an_result == XGBE_AN_COMPLETE);
+}
+
+static void xgbe_check_link_timeout(struct xgbe_prv_data *pdata)
+{
+ unsigned long link_timeout;
+
+ link_timeout = pdata->link_check + (XGBE_LINK_TIMEOUT * HZ);
+ if (time_after(jiffies, link_timeout))
+ xgbe_phy_config_aneg(pdata);
+}
+
+static void xgbe_phy_status_force(struct xgbe_prv_data *pdata)
+{
+ if (xgbe_in_kr_mode(pdata)) {
+ pdata->phy.speed = SPEED_10000;
+ } else {
+ switch (pdata->speed_set) {
+ case XGBE_SPEEDSET_1000_10000:
+ pdata->phy.speed = SPEED_1000;
+ break;
+
+ case XGBE_SPEEDSET_2500_10000:
+ pdata->phy.speed = SPEED_2500;
+ break;
+ }
+ }
+ pdata->phy.duplex = DUPLEX_FULL;
+ pdata->phy.pause = 0;
+ pdata->phy.asym_pause = 0;
+}
+
+static void xgbe_phy_status_aneg(struct xgbe_prv_data *pdata)
+{
+ unsigned int ad_reg, lp_reg;
+
+ pdata->phy.lp_advertising = 0;
+
+ if ((pdata->phy.autoneg != AUTONEG_ENABLE) || pdata->parallel_detect)
+ return xgbe_phy_status_force(pdata);
+
+ pdata->phy.lp_advertising |= ADVERTISED_Autoneg;
+ pdata->phy.lp_advertising |= ADVERTISED_Backplane;
+
+ /* Compare Advertisement and Link Partner register 1 */
+ ad_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE);
+ lp_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_LPA);
+ if (lp_reg & 0x400)
+ pdata->phy.lp_advertising |= ADVERTISED_Pause;
+ if (lp_reg & 0x800)
+ pdata->phy.lp_advertising |= ADVERTISED_Asym_Pause;
+
+ ad_reg &= lp_reg;
+ pdata->phy.pause = (ad_reg & 0x400) ? 1 : 0;
+ pdata->phy.asym_pause = (ad_reg & 0x800) ? 1 : 0;
+
+ /* Compare Advertisement and Link Partner register 2 */
+ ad_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE + 1);
+ lp_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_LPA + 1);
+ if (lp_reg & 0x80)
+ pdata->phy.lp_advertising |= ADVERTISED_10000baseKR_Full;
+ if (lp_reg & 0x20) {
+ switch (pdata->speed_set) {
+ case XGBE_SPEEDSET_1000_10000:
+ pdata->phy.lp_advertising |= ADVERTISED_1000baseKX_Full;
+ break;
+ case XGBE_SPEEDSET_2500_10000:
+ pdata->phy.lp_advertising |= ADVERTISED_2500baseX_Full;
+ break;
+ }
+ }
+
+ ad_reg &= lp_reg;
+ if (ad_reg & 0x80) {
+ pdata->phy.speed = SPEED_10000;
+ xgbe_set_mode(pdata, XGBE_MODE_KR);
+ } else if (ad_reg & 0x20) {
+ switch (pdata->speed_set) {
+ case XGBE_SPEEDSET_1000_10000:
+ pdata->phy.speed = SPEED_1000;
+ break;
+
+ case XGBE_SPEEDSET_2500_10000:
+ pdata->phy.speed = SPEED_2500;
+ break;
+ }
+
+ xgbe_set_mode(pdata, XGBE_MODE_KX);
+ } else {
+ pdata->phy.speed = SPEED_UNKNOWN;
+ }
+
+ /* Compare Advertisement and Link Partner register 3 */
+ ad_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_ADVERTISE + 2);
+ lp_reg = XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_LPA + 2);
+ if (lp_reg & 0xc000)
+ pdata->phy.lp_advertising |= ADVERTISED_10000baseR_FEC;
+
+ pdata->phy.duplex = DUPLEX_FULL;
+}
+
+static void xgbe_phy_status(struct xgbe_prv_data *pdata)
+{
+ unsigned int reg, link_aneg;
+
+ if (test_bit(XGBE_LINK_ERR, &pdata->dev_state)) {
+ if (test_and_clear_bit(XGBE_LINK, &pdata->dev_state))
+ netif_carrier_off(pdata->netdev);
+
+ pdata->phy.link = 0;
+ goto adjust_link;
+ }
+
+ link_aneg = (pdata->phy.autoneg == AUTONEG_ENABLE);
+
+ /* Get the link status. Link status is latched low, so read
+ * once to clear and then read again to get current state
+ */
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_STAT1);
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_STAT1);
+ pdata->phy.link = (reg & MDIO_STAT1_LSTATUS) ? 1 : 0;
+
+ if (pdata->phy.link) {
+ if (link_aneg && !xgbe_phy_aneg_done(pdata)) {
+ xgbe_check_link_timeout(pdata);
+ return;
+ }
+
+ xgbe_phy_status_aneg(pdata);
+
+ if (test_bit(XGBE_LINK_INIT, &pdata->dev_state))
+ clear_bit(XGBE_LINK_INIT, &pdata->dev_state);
+
+ if (!test_bit(XGBE_LINK, &pdata->dev_state)) {
+ set_bit(XGBE_LINK, &pdata->dev_state);
+ netif_carrier_on(pdata->netdev);
+ }
+ } else {
+ if (test_bit(XGBE_LINK_INIT, &pdata->dev_state)) {
+ xgbe_check_link_timeout(pdata);
+
+ if (link_aneg)
+ return;
+ }
+
+ xgbe_phy_status_aneg(pdata);
+
+ if (test_bit(XGBE_LINK, &pdata->dev_state)) {
+ clear_bit(XGBE_LINK, &pdata->dev_state);
+ netif_carrier_off(pdata->netdev);
+ }
+ }
+
+adjust_link:
+ xgbe_phy_adjust_link(pdata);
+}
+
+static void xgbe_phy_stop(struct xgbe_prv_data *pdata)
+{
+ /* Disable auto-negotiation */
+ xgbe_disable_an(pdata);
+
+ /* Disable auto-negotiation interrupts */
+ XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INTMASK, 0);
+
+ devm_free_irq(pdata->dev, pdata->an_irq, pdata);
+
+ pdata->phy.link = 0;
+ if (test_and_clear_bit(XGBE_LINK, &pdata->dev_state))
+ netif_carrier_off(pdata->netdev);
+
+ xgbe_phy_adjust_link(pdata);
+}
+
+static int xgbe_phy_start(struct xgbe_prv_data *pdata)
+{
+ struct net_device *netdev = pdata->netdev;
+ int ret;
+
+ ret = devm_request_irq(pdata->dev, pdata->an_irq,
+ xgbe_an_isr, 0, pdata->an_name,
+ pdata);
+ if (ret) {
+ netdev_err(netdev, "phy irq request failed\n");
+ return ret;
+ }
+
+ /* Set initial mode - call the mode setting routines
+ * directly to insure we are properly configured
+ */
+ if (pdata->phy.advertising & ADVERTISED_10000baseKR_Full) {
+ xgbe_xgmii_mode(pdata);
+ } else if (pdata->phy.advertising & ADVERTISED_1000baseKX_Full) {
+ xgbe_gmii_mode(pdata);
+ } else if (pdata->phy.advertising & ADVERTISED_2500baseX_Full) {
+ xgbe_gmii_2500_mode(pdata);
+ } else {
+ ret = -EINVAL;
+ goto err_irq;
+ }
+
+ /* Set up advertisement registers based on current settings */
+ xgbe_an_init(pdata);
+
+ /* Enable auto-negotiation interrupts */
+ XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INTMASK, 0x07);
+
+ return xgbe_phy_config_aneg(pdata);
+
+err_irq:
+ devm_free_irq(pdata->dev, pdata->an_irq, pdata);
+
+ return ret;
+}
+
+static int xgbe_phy_reset(struct xgbe_prv_data *pdata)
+{
+ unsigned int count, reg;
+
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
+ reg |= MDIO_CTRL1_RESET;
+ XMDIO_WRITE(pdata, MDIO_MMD_PCS, MDIO_CTRL1, reg);
+
+ count = 50;
+ do {
+ msleep(20);
+ reg = XMDIO_READ(pdata, MDIO_MMD_PCS, MDIO_CTRL1);
+ } while ((reg & MDIO_CTRL1_RESET) && --count);
+
+ if (reg & MDIO_CTRL1_RESET)
+ return -ETIMEDOUT;
+
+ /* Disable auto-negotiation for now */
+ xgbe_disable_an(pdata);
+
+ /* Clear auto-negotiation interrupts */
+ XMDIO_WRITE(pdata, MDIO_MMD_AN, MDIO_AN_INT, 0);
+
+ return 0;
+}
+
+static void xgbe_dump_phy_registers(struct xgbe_prv_data *pdata)
{
struct device *dev = pdata->dev;
- struct phy_device *phydev = pdata->phydev;
- int i;
dev_dbg(dev, "\n************* PHY Reg dump **********************\n");
@@ -194,122 +1182,59 @@
MDIO_AN_COMP_STAT,
XMDIO_READ(pdata, MDIO_MMD_AN, MDIO_AN_COMP_STAT));
- dev_dbg(dev, "MMD Device Mask = %#x\n",
- phydev->c45_ids.devices_in_package);
- for (i = 0; i < ARRAY_SIZE(phydev->c45_ids.device_ids); i++)
- dev_dbg(dev, " MMD %d: ID = %#08x\n", i,
- phydev->c45_ids.device_ids[i]);
-
dev_dbg(dev, "\n*************************************************\n");
}
-int xgbe_mdio_register(struct xgbe_prv_data *pdata)
+static void xgbe_phy_init(struct xgbe_prv_data *pdata)
{
- struct mii_bus *mii;
- struct phy_device *phydev;
- int ret = 0;
-
- DBGPR("-->xgbe_mdio_register\n");
-
- mii = mdiobus_alloc();
- if (!mii) {
- dev_err(pdata->dev, "mdiobus_alloc failed\n");
- return -ENOMEM;
- }
-
- /* Register on the MDIO bus (don't probe any PHYs) */
- mii->name = XGBE_PHY_NAME;
- mii->read = xgbe_mdio_read;
- mii->write = xgbe_mdio_write;
- snprintf(mii->id, sizeof(mii->id), "%s", pdata->mii_bus_id);
- mii->priv = pdata;
- mii->phy_mask = ~0;
- mii->parent = pdata->dev;
- ret = mdiobus_register(mii);
- if (ret) {
- dev_err(pdata->dev, "mdiobus_register failed\n");
- goto err_mdiobus_alloc;
- }
- if (netif_msg_drv(pdata))
- dev_dbg(pdata->dev, "mdiobus_register succeeded for %s\n",
- pdata->mii_bus_id);
-
- /* Probe the PCS using Clause 45 */
- phydev = get_phy_device(mii, XGBE_PRTAD, true);
- if (IS_ERR(phydev) || !phydev ||
- !phydev->c45_ids.device_ids[MDIO_MMD_PCS]) {
- dev_err(pdata->dev, "get_phy_device failed\n");
- ret = phydev ? PTR_ERR(phydev) : -ENOLINK;
- goto err_mdiobus_register;
- }
- request_module(MDIO_MODULE_PREFIX MDIO_ID_FMT,
- MDIO_ID_ARGS(phydev->c45_ids.device_ids[MDIO_MMD_PCS]));
-
- ret = phy_device_register(phydev);
- if (ret) {
- dev_err(pdata->dev, "phy_device_register failed\n");
- goto err_phy_device;
- }
- if (!phydev->dev.driver) {
- dev_err(pdata->dev, "phy driver probe failed\n");
- ret = -EIO;
- goto err_phy_device;
- }
-
- /* Add a reference to the PHY driver so it can't be unloaded */
- pdata->phy_module = phydev->dev.driver->owner;
- if (!try_module_get(pdata->phy_module)) {
- dev_err(pdata->dev, "try_module_get failed\n");
- ret = -EIO;
- goto err_phy_device;
- }
-
- pdata->mii = mii;
+ mutex_init(&pdata->an_mutex);
+ INIT_WORK(&pdata->an_irq_work, xgbe_an_irq_work);
+ INIT_WORK(&pdata->an_work, xgbe_an_state_machine);
pdata->mdio_mmd = MDIO_MMD_PCS;
- phydev->autoneg = pdata->default_autoneg;
- if (phydev->autoneg == AUTONEG_DISABLE) {
- phydev->speed = pdata->default_speed;
- phydev->duplex = DUPLEX_FULL;
-
- phydev->advertising &= ~ADVERTISED_Autoneg;
+ /* Initialize supported features */
+ pdata->phy.supported = SUPPORTED_Autoneg;
+ pdata->phy.supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
+ pdata->phy.supported |= SUPPORTED_Backplane;
+ pdata->phy.supported |= SUPPORTED_10000baseKR_Full;
+ switch (pdata->speed_set) {
+ case XGBE_SPEEDSET_1000_10000:
+ pdata->phy.supported |= SUPPORTED_1000baseKX_Full;
+ break;
+ case XGBE_SPEEDSET_2500_10000:
+ pdata->phy.supported |= SUPPORTED_2500baseX_Full;
+ break;
}
- pdata->phydev = phydev;
+ pdata->fec_ability = XMDIO_READ(pdata, MDIO_MMD_PMAPMD,
+ MDIO_PMA_10GBR_FECABLE);
+ pdata->fec_ability &= (MDIO_PMA_10GBR_FECABLE_ABLE |
+ MDIO_PMA_10GBR_FECABLE_ERRABLE);
+ if (pdata->fec_ability & MDIO_PMA_10GBR_FECABLE_ABLE)
+ pdata->phy.supported |= SUPPORTED_10000baseR_FEC;
+
+ pdata->phy.advertising = pdata->phy.supported;
+
+ pdata->phy.address = 0;
+
+ pdata->phy.autoneg = AUTONEG_ENABLE;
+ pdata->phy.speed = SPEED_UNKNOWN;
+ pdata->phy.duplex = DUPLEX_UNKNOWN;
+
+ pdata->phy.link = 0;
if (netif_msg_drv(pdata))
xgbe_dump_phy_registers(pdata);
-
- DBGPR("<--xgbe_mdio_register\n");
-
- return 0;
-
-err_phy_device:
- phy_device_free(phydev);
-
-err_mdiobus_register:
- mdiobus_unregister(mii);
-
-err_mdiobus_alloc:
- mdiobus_free(mii);
-
- return ret;
}
-void xgbe_mdio_unregister(struct xgbe_prv_data *pdata)
+void xgbe_init_function_ptrs_phy(struct xgbe_phy_if *phy_if)
{
- DBGPR("-->xgbe_mdio_unregister\n");
+ phy_if->phy_init = xgbe_phy_init;
- pdata->phydev = NULL;
+ phy_if->phy_reset = xgbe_phy_reset;
+ phy_if->phy_start = xgbe_phy_start;
+ phy_if->phy_stop = xgbe_phy_stop;
- module_put(pdata->phy_module);
- pdata->phy_module = NULL;
-
- mdiobus_unregister(pdata->mii);
- pdata->mii->priv = NULL;
-
- mdiobus_free(pdata->mii);
- pdata->mii = NULL;
-
- DBGPR("<--xgbe_mdio_unregister\n");
+ phy_if->phy_status = xgbe_phy_status;
+ phy_if->phy_config_aneg = xgbe_phy_config_aneg;
}
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h
index e182b25..b6aecc9 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe.h
@@ -129,7 +129,7 @@
#include <net/dcbnl.h>
#define XGBE_DRV_NAME "amd-xgbe"
-#define XGBE_DRV_VERSION "1.0.0-a"
+#define XGBE_DRV_VERSION "1.0.1"
#define XGBE_DRV_DESC "AMD 10 Gigabit Ethernet Driver"
/* Descriptor related defines */
@@ -178,14 +178,17 @@
#define XGMAC_JUMBO_PACKET_MTU 9000
#define XGMAC_MAX_JUMBO_PACKET 9018
-/* MDIO bus phy name */
-#define XGBE_PHY_NAME "amd_xgbe_phy"
-#define XGBE_PRTAD 0
-
/* Common property names */
#define XGBE_MAC_ADDR_PROPERTY "mac-address"
#define XGBE_PHY_MODE_PROPERTY "phy-mode"
#define XGBE_DMA_IRQS_PROPERTY "amd,per-channel-interrupt"
+#define XGBE_SPEEDSET_PROPERTY "amd,speed-set"
+#define XGBE_BLWC_PROPERTY "amd,serdes-blwc"
+#define XGBE_CDR_RATE_PROPERTY "amd,serdes-cdr-rate"
+#define XGBE_PQ_SKEW_PROPERTY "amd,serdes-pq-skew"
+#define XGBE_TX_AMP_PROPERTY "amd,serdes-tx-amp"
+#define XGBE_DFE_CFG_PROPERTY "amd,serdes-dfe-tap-config"
+#define XGBE_DFE_ENA_PROPERTY "amd,serdes-dfe-tap-enable"
/* Device-tree clock names */
#define XGBE_DMA_CLOCK "dma_clk"
@@ -241,6 +244,49 @@
#define XGBE_RSS_LOOKUP_TABLE_TYPE 0
#define XGBE_RSS_HASH_KEY_TYPE 1
+/* Auto-negotiation */
+#define XGBE_AN_MS_TIMEOUT 500
+#define XGBE_LINK_TIMEOUT 10
+
+#define XGBE_AN_INT_CMPLT 0x01
+#define XGBE_AN_INC_LINK 0x02
+#define XGBE_AN_PG_RCV 0x04
+#define XGBE_AN_INT_MASK 0x07
+
+/* Rate-change complete wait/retry count */
+#define XGBE_RATECHANGE_COUNT 500
+
+/* Default SerDes settings */
+#define XGBE_SPEED_10000_BLWC 0
+#define XGBE_SPEED_10000_CDR 0x7
+#define XGBE_SPEED_10000_PLL 0x1
+#define XGBE_SPEED_10000_PQ 0x12
+#define XGBE_SPEED_10000_RATE 0x0
+#define XGBE_SPEED_10000_TXAMP 0xa
+#define XGBE_SPEED_10000_WORD 0x7
+#define XGBE_SPEED_10000_DFE_TAP_CONFIG 0x1
+#define XGBE_SPEED_10000_DFE_TAP_ENABLE 0x7f
+
+#define XGBE_SPEED_2500_BLWC 1
+#define XGBE_SPEED_2500_CDR 0x2
+#define XGBE_SPEED_2500_PLL 0x0
+#define XGBE_SPEED_2500_PQ 0xa
+#define XGBE_SPEED_2500_RATE 0x1
+#define XGBE_SPEED_2500_TXAMP 0xf
+#define XGBE_SPEED_2500_WORD 0x1
+#define XGBE_SPEED_2500_DFE_TAP_CONFIG 0x3
+#define XGBE_SPEED_2500_DFE_TAP_ENABLE 0x0
+
+#define XGBE_SPEED_1000_BLWC 1
+#define XGBE_SPEED_1000_CDR 0x2
+#define XGBE_SPEED_1000_PLL 0x0
+#define XGBE_SPEED_1000_PQ 0xa
+#define XGBE_SPEED_1000_RATE 0x3
+#define XGBE_SPEED_1000_TXAMP 0xf
+#define XGBE_SPEED_1000_WORD 0x1
+#define XGBE_SPEED_1000_DFE_TAP_CONFIG 0x3
+#define XGBE_SPEED_1000_DFE_TAP_ENABLE 0x0
+
struct xgbe_prv_data;
struct xgbe_packet_data {
@@ -412,6 +458,13 @@
struct xgbe_ring *rx_ring;
} ____cacheline_aligned;
+enum xgbe_state {
+ XGBE_DOWN,
+ XGBE_LINK,
+ XGBE_LINK_INIT,
+ XGBE_LINK_ERR,
+};
+
enum xgbe_int {
XGMAC_INT_DMA_CH_SR_TI,
XGMAC_INT_DMA_CH_SR_TPS,
@@ -443,6 +496,55 @@
XGMAC_MTL_FIFO_SIZE_256K = 0x3ff,
};
+enum xgbe_speed {
+ XGBE_SPEED_1000 = 0,
+ XGBE_SPEED_2500,
+ XGBE_SPEED_10000,
+ XGBE_SPEEDS,
+};
+
+enum xgbe_an {
+ XGBE_AN_READY = 0,
+ XGBE_AN_PAGE_RECEIVED,
+ XGBE_AN_INCOMPAT_LINK,
+ XGBE_AN_COMPLETE,
+ XGBE_AN_NO_LINK,
+ XGBE_AN_ERROR,
+};
+
+enum xgbe_rx {
+ XGBE_RX_BPA = 0,
+ XGBE_RX_XNP,
+ XGBE_RX_COMPLETE,
+ XGBE_RX_ERROR,
+};
+
+enum xgbe_mode {
+ XGBE_MODE_KR = 0,
+ XGBE_MODE_KX,
+};
+
+enum xgbe_speedset {
+ XGBE_SPEEDSET_1000_10000 = 0,
+ XGBE_SPEEDSET_2500_10000,
+};
+
+struct xgbe_phy {
+ u32 supported;
+ u32 advertising;
+ u32 lp_advertising;
+
+ int address;
+
+ int autoneg;
+ int speed;
+ int duplex;
+ int pause;
+ int asym_pause;
+
+ int link;
+};
+
struct xgbe_mmc_stats {
/* Tx Stats */
u64 txoctetcount_gb;
@@ -594,6 +696,20 @@
int (*set_rss_lookup_table)(struct xgbe_prv_data *, const u32 *);
};
+struct xgbe_phy_if {
+ /* For initial PHY setup */
+ void (*phy_init)(struct xgbe_prv_data *);
+
+ /* For PHY support when setting device up/down */
+ int (*phy_reset)(struct xgbe_prv_data *);
+ int (*phy_start)(struct xgbe_prv_data *);
+ void (*phy_stop)(struct xgbe_prv_data *);
+
+ /* For PHY support while device is up */
+ void (*phy_status)(struct xgbe_prv_data *);
+ int (*phy_config_aneg)(struct xgbe_prv_data *);
+};
+
struct xgbe_desc_if {
int (*alloc_ring_resources)(struct xgbe_prv_data *);
void (*free_ring_resources)(struct xgbe_prv_data *);
@@ -663,6 +779,9 @@
/* XGMAC/XPCS related mmio registers */
void __iomem *xgmac_regs; /* XGMAC CSRs */
void __iomem *xpcs_regs; /* XPCS MMD registers */
+ void __iomem *rxtx_regs; /* SerDes Rx/Tx CSRs */
+ void __iomem *sir0_regs; /* SerDes integration registers (1/2) */
+ void __iomem *sir1_regs; /* SerDes integration registers (2/2) */
/* Overall device lock */
spinlock_t lock;
@@ -673,10 +792,14 @@
/* RSS addressing mutex */
struct mutex rss_mutex;
+ /* Flags representing xgbe_state */
+ unsigned long dev_state;
+
int dev_irq;
unsigned int per_channel_irq;
struct xgbe_hw_if hw_if;
+ struct xgbe_phy_if phy_if;
struct xgbe_desc_if desc_if;
/* AXI DMA settings */
@@ -685,6 +808,11 @@
unsigned int arcache;
unsigned int awcache;
+ /* Service routine support */
+ struct workqueue_struct *dev_workqueue;
+ struct work_struct service_work;
+ struct timer_list service_timer;
+
/* Rings for Tx/Rx on a DMA channel */
struct xgbe_channel *channel;
unsigned int channel_count;
@@ -732,22 +860,6 @@
u32 rss_table[XGBE_RSS_MAX_TABLE_SIZE];
u32 rss_options;
- /* MDIO settings */
- struct module *phy_module;
- char *mii_bus_id;
- struct mii_bus *mii;
- int mdio_mmd;
- struct phy_device *phydev;
- int default_autoneg;
- int default_speed;
-
- /* Current PHY settings */
- phy_interface_t phy_mode;
- int phy_link;
- int phy_speed;
- unsigned int phy_tx_pause;
- unsigned int phy_rx_pause;
-
/* Netdev related settings */
unsigned char mac_addr[ETH_ALEN];
netdev_features_t netdev_features;
@@ -794,6 +906,53 @@
/* Network interface message level setting */
u32 msg_enable;
+ /* Current PHY settings */
+ phy_interface_t phy_mode;
+ int phy_link;
+ int phy_speed;
+ unsigned int phy_tx_pause;
+ unsigned int phy_rx_pause;
+
+ /* MDIO/PHY related settings */
+ struct xgbe_phy phy;
+ int mdio_mmd;
+ unsigned long link_check;
+
+ char an_name[IFNAMSIZ + 32];
+ struct workqueue_struct *an_workqueue;
+
+ int an_irq;
+ struct work_struct an_irq_work;
+
+ unsigned int speed_set;
+
+ /* SerDes UEFI configurable settings.
+ * Switching between modes/speeds requires new values for some
+ * SerDes settings. The values can be supplied as device
+ * properties in array format. The first array entry is for
+ * 1GbE, second for 2.5GbE and third for 10GbE
+ */
+ u32 serdes_blwc[XGBE_SPEEDS];
+ u32 serdes_cdr_rate[XGBE_SPEEDS];
+ u32 serdes_pq_skew[XGBE_SPEEDS];
+ u32 serdes_tx_amp[XGBE_SPEEDS];
+ u32 serdes_dfe_tap_cfg[XGBE_SPEEDS];
+ u32 serdes_dfe_tap_ena[XGBE_SPEEDS];
+
+ /* Auto-negotiation state machine support */
+ struct mutex an_mutex;
+ enum xgbe_an an_result;
+ enum xgbe_an an_state;
+ enum xgbe_rx kr_state;
+ enum xgbe_rx kx_state;
+ struct work_struct an_work;
+ unsigned int an_supported;
+ unsigned int parallel_detect;
+ unsigned int fec_ability;
+ unsigned long an_start;
+
+ unsigned int lpm_ctrl; /* CTRL1 for resume */
+
#ifdef CONFIG_DEBUG_FS
struct dentry *xgbe_debugfs;
@@ -807,6 +966,7 @@
/* Function prototypes*/
void xgbe_init_function_ptrs_dev(struct xgbe_hw_if *);
+void xgbe_init_function_ptrs_phy(struct xgbe_phy_if *);
void xgbe_init_function_ptrs_desc(struct xgbe_desc_if *);
struct net_device_ops *xgbe_get_netdev_ops(void);
struct ethtool_ops *xgbe_get_ethtool_ops(void);
@@ -814,9 +974,6 @@
const struct dcbnl_rtnl_ops *xgbe_get_dcbnl_ops(void);
#endif
-int xgbe_mdio_register(struct xgbe_prv_data *);
-void xgbe_mdio_unregister(struct xgbe_prv_data *);
-void xgbe_dump_phy_registers(struct xgbe_prv_data *);
void xgbe_ptp_register(struct xgbe_prv_data *);
void xgbe_ptp_unregister(struct xgbe_prv_data *);
void xgbe_dump_tx_desc(struct xgbe_prv_data *, struct xgbe_ring *,