From: Mark Rustad <mark.d.rus...@intel.com>
Avoid a needless PHY access on copper phys to save the 10ms wait
time for each PHY access. A helper function is introduced to
actually do the register access and process the contents.
Signed-off-by: Mark Rustad <mark.d.rus...@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirs...@intel.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c | 64 ++++++++++++++++++---------
drivers/net/ethernet/intel/ixgbe/ixgbe_type.h | 1 +
2 files changed, 44 insertions(+), 21 deletions(-)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
index 97275dc..597d0b1 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c
@@ -730,39 +730,61 @@ s32 ixgbe_setup_phy_link_speed_generic(struct ixgbe_hw
*hw,
}
/**
- * ixgbe_get_copper_link_capabilities_generic - Determines link capabilities
+ * ixgbe_get_copper_speeds_supported - Get copper link speed from phy
* @hw: pointer to hardware structure
- * @speed: pointer to link speed
- * @autoneg: boolean auto-negotiation value
*
- * Determines the link capabilities by reading the AUTOC register.
+ * Determines the supported link capabilities by reading the PHY auto
+ * negotiation register.
*/
-s32 ixgbe_get_copper_link_capabilities_generic(struct ixgbe_hw *hw,
- ixgbe_link_speed *speed,
- bool *autoneg)
+static s32 ixgbe_get_copper_speeds_supported(struct ixgbe_hw *hw)
{
- s32 status;
u16 speed_ability;
-
- *speed = 0;
- *autoneg = true;
+ s32 status;
status = hw->phy.ops.read_reg(hw, MDIO_SPEED, MDIO_MMD_PMAPMD,
&speed_ability);
+ if (status)
+ return status;
- if (status == 0) {
- if (speed_ability & MDIO_SPEED_10G)
- *speed |= IXGBE_LINK_SPEED_10GB_FULL;
- if (speed_ability & MDIO_PMA_SPEED_1000)
- *speed |= IXGBE_LINK_SPEED_1GB_FULL;
- if (speed_ability & MDIO_PMA_SPEED_100)
- *speed |= IXGBE_LINK_SPEED_100_FULL;
+ if (speed_ability & MDIO_SPEED_10G)
+ hw->phy.speeds_supported |= IXGBE_LINK_SPEED_10GB_FULL;
+ if (speed_ability & MDIO_PMA_SPEED_1000)
+ hw->phy.speeds_supported |= IXGBE_LINK_SPEED_1GB_FULL;
+ if (speed_ability & MDIO_PMA_SPEED_100)
+ hw->phy.speeds_supported |= IXGBE_LINK_SPEED_100_FULL;
+
+ switch (hw->mac.type) {
+ case ixgbe_mac_X550:
+ hw->phy.speeds_supported |= IXGBE_LINK_SPEED_2_5GB_FULL;
+ hw->phy.speeds_supported |= IXGBE_LINK_SPEED_5GB_FULL;
+ break;
+ case ixgbe_mac_X550EM_x:
+ hw->phy.speeds_supported &= ~IXGBE_LINK_SPEED_100_FULL;
+ break;
+ default:
+ break;
}
- /* Internal PHY does not support 100 Mbps */
- if (hw->mac.type == ixgbe_mac_X550EM_x)
- *speed &= ~IXGBE_LINK_SPEED_100_FULL;
+ return 0;
+}
+
+/**
+ * ixgbe_get_copper_link_capabilities_generic - Determines link capabilities
+ * @hw: pointer to hardware structure
+ * @speed: pointer to link speed
+ * @autoneg: boolean auto-negotiation value
+ */
+s32 ixgbe_get_copper_link_capabilities_generic(struct ixgbe_hw *hw,
+ ixgbe_link_speed *speed,
+ bool *autoneg)
+{
+ s32 status = 0;
+
+ *autoneg = true;
+ if (!hw->phy.speeds_supported)
+ status = ixgbe_get_copper_speeds_supported(hw);
+ *speed = hw->phy.speeds_supported;
return status;
}
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
index a3eec19..6368919 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_type.h
@@ -3384,6 +3384,7 @@ struct ixgbe_phy_info {
u32 phy_semaphore_mask;
bool reset_disable;
ixgbe_autoneg_advertised autoneg_advertised;
+ ixgbe_link_speed speeds_supported;
enum ixgbe_smart_speed smart_speed;
bool smart_speed_active;
bool multispeed_fiber;
--
2.4.3
--
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