netdev - [net-next 03/13] ixgbe: advertise highest capable link speed

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Date:   Tue,  9 Jan 2018 11:02:23 -0800
From:   Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To:     davem@...emloft.net
Cc:     Paul Greenwalt <paul.greenwalt@...el.com>, netdev@...r.kernel.org,
        nhorman@...hat.com, sassmann@...hat.com, jogreene@...hat.com,
        Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next 03/13] ixgbe: advertise highest capable link speed

From: Paul Greenwalt <paul.greenwalt@...el.com>

On module insert advertise highest capable link speed. If module is
capable of 10G, then advertise 10G, else advertise modules capable
link speeds.

Signed-off-by: Paul Greenwalt <paul.greenwalt@...el.com>
Tested-by: Andrew Bowers <andrewx.bowers@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 43ca5b0d5999..07d929bf4b50 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -7656,6 +7656,7 @@ static void ixgbe_sfp_detection_subtask(struct ixgbe_adapter *adapter)
 static void ixgbe_sfp_link_config_subtask(struct ixgbe_adapter *adapter)
 {
 	struct ixgbe_hw *hw = &adapter->hw;
+	u32 cap_speed;
 	u32 speed;
 	bool autoneg = false;
 
@@ -7668,16 +7669,14 @@ static void ixgbe_sfp_link_config_subtask(struct ixgbe_adapter *adapter)
 
 	adapter->flags &= ~IXGBE_FLAG_NEED_LINK_CONFIG;
 
-	speed = hw->phy.autoneg_advertised;
-	if ((!speed) && (hw->mac.ops.get_link_capabilities)) {
-		hw->mac.ops.get_link_capabilities(hw, &speed, &autoneg);
+	hw->mac.ops.get_link_capabilities(hw, &cap_speed, &autoneg);
 
-		/* setup the highest link when no autoneg */
-		if (!autoneg) {
-			if (speed & IXGBE_LINK_SPEED_10GB_FULL)
-				speed = IXGBE_LINK_SPEED_10GB_FULL;
-		}
-	}
+	/* advertise highest capable link speed */
+	if (!autoneg && (cap_speed & IXGBE_LINK_SPEED_10GB_FULL))
+		speed = IXGBE_LINK_SPEED_10GB_FULL;
+	else
+		speed = cap_speed & (IXGBE_LINK_SPEED_10GB_FULL |
+				     IXGBE_LINK_SPEED_1GB_FULL);
 
 	if (hw->mac.ops.setup_link)
 		hw->mac.ops.setup_link(hw, speed, true);
-- 
2.15.1