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Subject[PATCH-RFC] drivers: net: ethernet: intel: e1000e: fix ethtool autoneg off for fiber
Date
From: Steve Shih <sshih@cisco.com>

This patch fixes the issues for disabling auto-negotiation and forcing
speed and duplex settings for the fiber media.

For fiber media, e1000_get_settings should return ETH_TP_MDI_INVALID for
eth_tp_mdix_ctrl instead of ETH_TP_MDI_AUTO so subsequent e1000_set_settings
call would not fail with -EOPNOTSUPP.

e1000_set_spd_dplx should not automatically turn autoneg back on for forced
1000 Mbps full duplex settings.

Cc: danielwa@fifo99.com
Cc: xe-kernel@external.cisco.com
Signed-off-by: Steve Shih <sshih@cisco.com>
---
drivers/net/ethernet/intel/e1000e/ethtool.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/e1000e/ethtool.c b/drivers/net/ethernet/intel/e1000e/ethtool.c
index 6cab1f3..cd03dcd 100644
--- a/drivers/net/ethernet/intel/e1000e/ethtool.c
+++ b/drivers/net/ethernet/intel/e1000e/ethtool.c
@@ -201,6 +201,9 @@ static int e1000_get_settings(struct net_device *netdev,
else
ecmd->eth_tp_mdix_ctrl = hw->phy.mdix;

+ if (hw->phy.media_type != e1000_media_type_copper)
+ ecmd->eth_tp_mdix_ctrl = ETH_TP_MDI_INVALID;
+
return 0;
}

@@ -236,8 +239,7 @@ static int e1000_set_spd_dplx(struct e1000_adapter *adapter, u32 spd, u8 dplx)
mac->forced_speed_duplex = ADVERTISE_100_FULL;
break;
case SPEED_1000 + DUPLEX_FULL:
- mac->autoneg = 1;
- adapter->hw.phy.autoneg_advertised = ADVERTISE_1000_FULL;
+ mac->forced_speed_duplex = ADVERTISE_1000_FULL;
break;
case SPEED_1000 + DUPLEX_HALF: /* not supported */
default:
--
2.5.0
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