From: Paul Greenwalt <paul.greenwalt@intel.com>
Date: Thu, 9 Jul 2020 09:16:10 -0700
Subject: ice: update reporting of autoneg capabilities
Patch-mainline: v5.9-rc1
Git-commit: 5ee30564c85c94b7dc78aa6cce09e9712b2ad70d
References: jsc#SLE-12878

Firmware now reports AN28, AN32, and AN73. Add a helper and check these new
values and report PHY autoneg capability.

Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/intel/ice/ice_adminq_cmd.h |    3 +++
 drivers/net/ethernet/intel/ice/ice_common.c     |   15 +++++++++++++++
 drivers/net/ethernet/intel/ice/ice_common.h     |    1 +
 drivers/net/ethernet/intel/ice/ice_ethtool.c    |    8 ++++----
 drivers/net/ethernet/intel/ice/ice_main.c       |    8 ++++++--
 5 files changed, 29 insertions(+), 6 deletions(-)

--- a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
+++ b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
@@ -963,6 +963,9 @@ struct ice_aqc_get_phy_caps_data {
 #define ICE_AQC_PHY_CAPS_MASK				ICE_M(0xff, 0)
 	u8 low_power_ctrl;
 #define ICE_AQC_PHY_EN_D3COLD_LOW_POWER_AUTONEG		BIT(0)
+#define ICE_AQC_PHY_AN_EN_CLAUSE28			BIT(1)
+#define ICE_AQC_PHY_AN_EN_CLAUSE73			BIT(2)
+#define ICE_AQC_PHY_AN_EN_CLAUSE37			BIT(3)
 	__le16 eee_cap;
 #define ICE_AQC_PHY_EEE_EN_100BASE_TX			BIT(0)
 #define ICE_AQC_PHY_EEE_EN_1000BASE_T			BIT(1)
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -4237,3 +4237,18 @@ ice_get_link_default_override(struct ice
 
 	return status;
 }
+
+/**
+ * ice_is_phy_caps_an_enabled - check if PHY capabilities autoneg is enabled
+ * @caps: get PHY capability data
+ */
+bool ice_is_phy_caps_an_enabled(struct ice_aqc_get_phy_caps_data *caps)
+{
+	if (caps->caps & ICE_AQC_PHY_AN_MODE ||
+	    caps->low_power_ctrl & (ICE_AQC_PHY_AN_EN_CLAUSE28 |
+				    ICE_AQC_PHY_AN_EN_CLAUSE73 |
+				    ICE_AQC_PHY_AN_EN_CLAUSE37))
+		return true;
+
+	return false;
+}
--- a/drivers/net/ethernet/intel/ice/ice_common.h
+++ b/drivers/net/ethernet/intel/ice/ice_common.h
@@ -104,6 +104,7 @@ bool ice_fw_supports_link_override(struc
 enum ice_status
 ice_get_link_default_override(struct ice_link_default_override_tlv *ldo,
 			      struct ice_port_info *pi);
+bool ice_is_phy_caps_an_enabled(struct ice_aqc_get_phy_caps_data *caps);
 
 enum ice_fc_mode ice_caps_to_fc_mode(u8 caps);
 enum ice_fec_mode ice_caps_to_fec_mode(u8 caps, u8 fec_options);
--- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
@@ -2988,8 +2988,8 @@ ice_get_pauseparam(struct net_device *ne
 	if (status)
 		goto out;
 
-	pause->autoneg = ((pcaps->caps & ICE_AQC_PHY_AN_MODE) ?
-			AUTONEG_ENABLE : AUTONEG_DISABLE);
+	pause->autoneg = ice_is_phy_caps_an_enabled(pcaps) ? AUTONEG_ENABLE :
+							     AUTONEG_DISABLE;
 
 	if (dcbx_cfg->pfc.pfcena)
 		/* PFC enabled so report LFC as off */
@@ -3057,8 +3057,8 @@ ice_set_pauseparam(struct net_device *ne
 		return -EIO;
 	}
 
-	is_an = ((pcaps->caps & ICE_AQC_PHY_AN_MODE) ?
-			AUTONEG_ENABLE : AUTONEG_DISABLE);
+	is_an = ice_is_phy_caps_an_enabled(pcaps) ? AUTONEG_ENABLE :
+						    AUTONEG_DISABLE;
 
 	kfree(pcaps);
 
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -620,6 +620,7 @@ static void ice_print_topo_conflict(stru
 void ice_print_link_msg(struct ice_vsi *vsi, bool isup)
 {
 	struct ice_aqc_get_phy_caps_data *caps;
+	const char *an_advertised;
 	enum ice_status status;
 	const char *fec_req;
 	const char *speed;
@@ -718,6 +719,7 @@ void ice_print_link_msg(struct ice_vsi *
 	caps = kzalloc(sizeof(*caps), GFP_KERNEL);
 	if (!caps) {
 		fec_req = "Unknown";
+		an_advertised = "Unknown";
 		goto done;
 	}
 
@@ -726,6 +728,8 @@ void ice_print_link_msg(struct ice_vsi *
 	if (status)
 		netdev_info(vsi->netdev, "Get phy capability failed.\n");
 
+	an_advertised = ice_is_phy_caps_an_enabled(caps) ? "On" : "Off";
+
 	if (caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_528_REQ ||
 	    caps->link_fec_options & ICE_AQC_PHY_FEC_25G_RS_544_REQ)
 		fec_req = "RS-FEC";
@@ -738,8 +742,8 @@ void ice_print_link_msg(struct ice_vsi *
 	kfree(caps);
 
 done:
-	netdev_info(vsi->netdev, "NIC Link is up %sbps Full Duplex, Requested FEC: %s, Negotiated FEC: %s, Autoneg: %s, Flow Control: %s\n",
-		    speed, fec_req, fec, an, fc);
+	netdev_info(vsi->netdev, "NIC Link is up %sbps Full Duplex, Requested FEC: %s, Negotiated FEC: %s, Autoneg Advertised: %s, Autoneg Negotiated: %s, Flow Control: %s\n",
+		    speed, fec_req, fec, an_advertised, an, fc);
 	ice_print_topo_conflict(vsi);
 }