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Message-Id: <20200617111249.20855-1-aaron.ma@canonical.com>
Date: Wed, 17 Jun 2020 19:12:48 +0800
From: Aaron Ma <aaron.ma@...onical.com>
To: jeffrey.t.kirsher@...el.com, davem@...emloft.net, kuba@...nel.org,
intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org, vitaly.lifshits@...el.com,
kai.heng.feng@...onical.com, sasha.neftin@...el.com
Subject: [v2][PATCH] e1000e: continue to init phy even when failed to disable ULP
After commit: e086ba2fccd ("e1000e: disable s0ix entry and exit flows
for ME systems").
ThinkPad P14s always failed to disable ULP by ME.
commit: 0c80cdbf33 ("e1000e: Warn if disabling ULP failed")
break out of init phy:
error log:
[ 42.364753] e1000e 0000:00:1f.6 enp0s31f6: Failed to disable ULP
[ 42.524626] e1000e 0000:00:1f.6 enp0s31f6: PHY Wakeup cause - Unicast Packet
[ 42.822476] e1000e 0000:00:1f.6 enp0s31f6: Hardware Error
When disable s0ix, E1000_FWSM_ULP_CFG_DONE will never be 1.
If continue to init phy like before, it can work as before.
iperf test result good too.
Fixes: 0c80cdbf33 ("e1000e: Warn if disabling ULP failed")
Signed-off-by: Aaron Ma <aaron.ma@...onical.com>
---
drivers/net/ethernet/intel/e1000e/ich8lan.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/net/ethernet/intel/e1000e/ich8lan.c b/drivers/net/ethernet/intel/e1000e/ich8lan.c
index f999cca37a8a..be7475c5529d 100644
--- a/drivers/net/ethernet/intel/e1000e/ich8lan.c
+++ b/drivers/net/ethernet/intel/e1000e/ich8lan.c
@@ -303,7 +303,6 @@ static s32 e1000_init_phy_workarounds_pchlan(struct e1000_hw *hw)
ret_val = e1000_disable_ulp_lpt_lp(hw, true);
if (ret_val) {
e_warn("Failed to disable ULP\n");
- goto out;
}
ret_val = hw->phy.ops.acquire(hw);
--
2.26.2
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