Loopback mode is also supported on X540 and X550 NICs, according to
their datasheet (section 15.2). The way to set it up is a little
different of the 82599.
Signed-off-by: Julien Meunier <julien.meun...@nokia.com>
---
v2:
- disable / enable autoneg when loopback is requested for X540 / X550
---
drivers/net/ixgbe/base/ixgbe_type.h | 1 +
drivers/net/ixgbe/base/ixgbe_x540.c | 26 ++++++++++++++++
drivers/net/ixgbe/base/ixgbe_x540.h | 2 ++
drivers/net/ixgbe/base/ixgbe_x550.c | 26 ++++++++++++++++
drivers/net/ixgbe/base/ixgbe_x550.h | 1 +
drivers/net/ixgbe/ixgbe_ethdev.h | 5 ++-
drivers/net/ixgbe/ixgbe_rxtx.c | 61 +++++++++++++++++++++++++++++++++++--
7 files changed, 117 insertions(+), 5 deletions(-)
diff --git a/drivers/net/ixgbe/base/ixgbe_type.h
b/drivers/net/ixgbe/base/ixgbe_type.h
index 077b8f0..c4af31e 100644
--- a/drivers/net/ixgbe/base/ixgbe_type.h
+++ b/drivers/net/ixgbe/base/ixgbe_type.h
@@ -1649,6 +1649,7 @@ struct ixgbe_dmac_config {
#define IXGBE_MII_5GBASE_T_ADVERTISE 0x0800
#define IXGBE_MII_100BASE_T_ADVERTISE 0x0100 /* full duplex, bit:8 */
#define IXGBE_MII_100BASE_T_ADVERTISE_HALF 0x0080 /* half duplex, bit:7 */
+#define IXGBE_MII_AUTONEG_ENABLE 0x1000
#define IXGBE_MII_RESTART 0x200
#define IXGBE_MII_AUTONEG_COMPLETE 0x20
#define IXGBE_MII_AUTONEG_LINK_UP 0x04
diff --git a/drivers/net/ixgbe/base/ixgbe_x540.c
b/drivers/net/ixgbe/base/ixgbe_x540.c
index f00f0ea..a241d41 100644
--- a/drivers/net/ixgbe/base/ixgbe_x540.c
+++ b/drivers/net/ixgbe/base/ixgbe_x540.c
@@ -1032,3 +1032,29 @@ s32 ixgbe_blink_led_stop_X540(struct ixgbe_hw *hw, u32
index)
return IXGBE_SUCCESS;
}
+
+/*
+ * ixgbe_setup_phy_link_x540 - Enable/disable the autoneg
+ * @hw: pointer to hardware structure
+ * enable: enable/disable the autoneg
+ **/
+s32 ixgbe_setup_phy_autoneg_x540(struct ixgbe_hw *hw, bool enable)
+{
+ s32 status = IXGBE_SUCCESS;
+ u16 autoneg_reg = IXGBE_MII_AUTONEG_REG;
+
+ DEBUGFUNC("ixgbe_setup_phy_autoneg_x540");
+
+ hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_CONTROL,
+ IXGBE_MDIO_AUTO_NEG_DEV_TYPE, &autoneg_reg);
+
+ if (enable)
+ autoneg_reg |= IXGBE_MII_AUTONEG_ENABLE;
+ else
+ autoneg_reg &= ~IXGBE_MII_AUTONEG_ENABLE;
+
+ hw->phy.ops.write_reg(hw, IXGBE_MDIO_AUTO_NEG_CONTROL,
+ IXGBE_MDIO_AUTO_NEG_DEV_TYPE, autoneg_reg);
+
+ return status;
+}
diff --git a/drivers/net/ixgbe/base/ixgbe_x540.h
b/drivers/net/ixgbe/base/ixgbe_x540.h
index 231dfe5..ef939ce 100644
--- a/drivers/net/ixgbe/base/ixgbe_x540.h
+++ b/drivers/net/ixgbe/base/ixgbe_x540.h
@@ -34,5 +34,7 @@ void ixgbe_init_swfw_sync_X540(struct ixgbe_hw *hw);
s32 ixgbe_blink_led_start_X540(struct ixgbe_hw *hw, u32 index);
s32 ixgbe_blink_led_stop_X540(struct ixgbe_hw *hw, u32 index);
+
+s32 ixgbe_setup_phy_autoneg_x540(struct ixgbe_hw *hw, bool enable);
#endif /* _IXGBE_X540_H_ */
diff --git a/drivers/net/ixgbe/base/ixgbe_x550.c
b/drivers/net/ixgbe/base/ixgbe_x550.c
index a920a14..f4ee188 100644
--- a/drivers/net/ixgbe/base/ixgbe_x550.c
+++ b/drivers/net/ixgbe/base/ixgbe_x550.c
@@ -4652,3 +4652,29 @@ bool ixgbe_fw_recovery_mode_X550(struct ixgbe_hw *hw)
return !!(fwsm & IXGBE_FWSM_FW_NVM_RECOVERY_MODE);
}
+
+/*
+ * ixgbe_setup_phy_link_x550 - Enable/disable the autoneg
+ * @hw: pointer to hardware structure
+ * enable: enable/disable the autoneg
+ **/
+s32 ixgbe_setup_phy_autoneg_x550(struct ixgbe_hw *hw, bool enable)
+{
+ s32 status = IXGBE_SUCCESS;
+ u16 autoneg_reg = IXGBE_MII_AUTONEG_REG;
+
+ DEBUGFUNC("ixgbe_setup_phy_autoneg_x550");
+
+ hw->phy.ops.read_reg(hw, IXGBE_MDIO_AUTO_NEG_CONTROL,
+ IXGBE_MDIO_AUTO_NEG_DEV_TYPE, &autoneg_reg);
+
+ if (enable)
+ autoneg_reg |= IXGBE_MII_AUTONEG_ENABLE;
+ else
+ autoneg_reg &= ~IXGBE_MII_AUTONEG_ENABLE;
+
+ hw->phy.ops.write_reg(hw, IXGBE_MDIO_AUTO_NEG_CONTROL,
+ IXGBE_MDIO_AUTO_NEG_DEV_TYPE, autoneg_reg);
+
+ return status;
+}
diff --git a/drivers/net/ixgbe/base/ixgbe_x550.h
b/drivers/net/ixgbe/base/ixgbe_x550.h
index 3bd98f2..dd4fa18 100644
--- a/drivers/net/ixgbe/base/ixgbe_x550.h
+++ b/drivers/net/ixgbe/base/ixgbe_x550.h
@@ -93,4 +93,5 @@ s32 ixgbe_identify_sfp_module_X550em(struct ixgbe_hw *hw);
s32 ixgbe_led_on_t_X550em(struct ixgbe_hw *hw, u32 led_idx);
s32 ixgbe_led_off_t_X550em(struct ixgbe_hw *hw, u32 led_idx);
bool ixgbe_fw_recovery_mode_X550(struct ixgbe_hw *hw);
+s32 ixgbe_setup_phy_autoneg_x550(struct ixgbe_hw *hw, bool enable);
#endif /* _IXGBE_X550_H_ */
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.h b/drivers/net/ixgbe/ixgbe_ethdev.h
index 565c69c..c60a697 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.h
+++ b/drivers/net/ixgbe/ixgbe_ethdev.h
@@ -65,9 +65,8 @@
#define IXGBE_QUEUE_ITR_INTERVAL_DEFAULT 500 /* 500us */
/* Loopback operation modes */
-/* 82599 specific loopback operation types */
-#define IXGBE_LPBK_82599_NONE 0x0 /* Default value. Loopback is disabled. */
-#define IXGBE_LPBK_82599_TX_RX 0x1 /* Tx->Rx loopback operation is enabled. */
+#define IXGBE_LPBK_NONE 0x0 /* Default value. Loopback is disabled. */
+#define IXGBE_LPBK_TX_RX 0x1 /* Tx->Rx loopback operation is enabled. */
#define IXGBE_MAX_JUMBO_FRAME_SIZE 0x2600 /* Maximum Jumbo frame size. */
diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c
index c9a70a8..1472d13 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx.c
@@ -49,6 +49,8 @@
#include "ixgbe_ethdev.h"
#include "base/ixgbe_dcb.h"
#include "base/ixgbe_common.h"
+#include "base/ixgbe_x540.h"
+#include "base/ixgbe_x550.h"
#include "ixgbe_rxtx.h"
#ifdef RTE_LIBRTE_IEEE1588
@@ -3174,6 +3176,7 @@ ixgbe_dev_clear_queues(struct rte_eth_dev *dev)
unsigned i;
struct ixgbe_adapter *adapter =
(struct ixgbe_adapter *)dev->data->dev_private;
+ struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
PMD_INIT_FUNC_TRACE();
@@ -3194,6 +3197,15 @@ ixgbe_dev_clear_queues(struct rte_eth_dev *dev)
ixgbe_reset_rx_queue(adapter, rxq);
}
}
+ /* If loopback mode was enabled, reconfigure the link accordingly */
+ if (dev->data->dev_conf.lpbk_mode != 0) {
+ if (hw->mac.type == ixgbe_mac_X540)
+ ixgbe_setup_phy_autoneg_x540(hw, true);
+ else if (hw->mac.type == ixgbe_mac_X550 ||
+ hw->mac.type == ixgbe_mac_X550EM_x ||
+ hw->mac.type == ixgbe_mac_X550EM_a)
+ ixgbe_setup_phy_autoneg_x550(hw, true);
+ }
}
void
@@ -5074,8 +5086,12 @@ ixgbe_check_supported_loopback_mode(struct rte_eth_dev
*dev)
{
struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
- if (dev->data->dev_conf.lpbk_mode == IXGBE_LPBK_82599_TX_RX)
- if (hw->mac.type == ixgbe_mac_82599EB)
+ if (dev->data->dev_conf.lpbk_mode == IXGBE_LPBK_TX_RX)
+ if (hw->mac.type == ixgbe_mac_82599EB ||
+ hw->mac.type == ixgbe_mac_X540 ||
+ hw->mac.type == ixgbe_mac_X550 ||
+ hw->mac.type == ixgbe_mac_X550EM_x ||
+ hw->mac.type == ixgbe_mac_X550EM_a)
return 0;
return -ENOTSUP;
@@ -5108,6 +5124,41 @@ ixgbe_setup_loopback_link_82599(struct ixgbe_hw *hw)
msec_delay(50);
}
+/*
+ * Set up link loopback for X540 mode Tx->Rx.
+ */
+static inline void __attribute__((cold))
+ixgbe_setup_loopback_link_x540(struct ixgbe_hw *hw)
+{
+ uint32_t macc;
+ PMD_INIT_FUNC_TRACE();
+
+ /* datasheet 15.2.1: disable AUTONEG (PHY Bit 7.0.C) */
+ ixgbe_setup_phy_autoneg_x540(hw, false);
+
+ /* datasheet 15.2.1: MACC.FLU = 1 (force link up) */
+ macc = IXGBE_READ_REG(hw, IXGBE_MACC);
+ macc |= IXGBE_MACC_FLU;
+ IXGBE_WRITE_REG(hw, IXGBE_MACC, macc);
+}
+
+/*
+ * Set up link loopback for X550 mode Tx->Rx.
+ */
+static inline void __attribute__((cold))
+ixgbe_setup_loopback_link_x550(struct ixgbe_hw *hw)
+{
+ uint32_t macc;
+ PMD_INIT_FUNC_TRACE();
+
+ /* datasheet 15.2.1: disable AUTONEG (PHY Bit 7.0.C) */
+ ixgbe_setup_phy_autoneg_x550(hw, false);
+
+ /* datasheet 15.2.1: MACC.FLU = 1 (force link up) */
+ macc = IXGBE_READ_REG(hw, IXGBE_MACC);
+ macc |= IXGBE_MACC_FLU;
+ IXGBE_WRITE_REG(hw, IXGBE_MACC, macc);
+}
/*
* Start Transmit and Receive Units.
@@ -5172,6 +5223,12 @@ ixgbe_dev_rxtx_start(struct rte_eth_dev *dev)
if (dev->data->dev_conf.lpbk_mode != 0) {
if (hw->mac.type == ixgbe_mac_82599EB)
ixgbe_setup_loopback_link_82599(hw);
+ else if (hw->mac.type == ixgbe_mac_X540)
+ ixgbe_setup_loopback_link_x540(hw);
+ else if (hw->mac.type == ixgbe_mac_X550 ||
+ hw->mac.type == ixgbe_mac_X550EM_x ||
+ hw->mac.type == ixgbe_mac_X550EM_a)
+ ixgbe_setup_loopback_link_x550(hw);
}
#ifdef RTE_LIBRTE_SECURITY
--
2.10.2
