diff options
| author | Guinan Sun <guinanx.sun@intel.com> | 2020-07-06 08:12:09 +0000 |
|---|---|---|
| committer | Kevin Bowling <kbowling@FreeBSD.org> | 2021-09-17 21:23:07 +0000 |
| commit | e8e3171d992f3255cc8e5a0f59912d07679cc94c (patch) | |
| tree | 2c4b949bee2dc875c4a4be05fd6303c0efd65204 | |
| parent | 09888d4bc1a2c45d121046f79be5c01e4889a67e (diff) | |
e1000: increase timeout for ME ULP exit
Due timing issues in WHL and since recovery by host is
not always supported, increased timeout for Manageability Engine(ME)
to finish Ultra Low Power(ULP) exit flow for Nahum before timer expiration.
Signed-off-by: Nir Efrati <nir.efrati@intel.com>
Signed-off-by: Guinan Sun <guinanx.sun@intel.com>
Reviewed-by: Wei Zhao <wei.zhao1@intel.com>
Approved by: imp
Obtained from: DPDK (cf1f3ca45d33e793ca581200b4000c39a798113e)
MFC after: 1 week
| -rw-r--r-- | sys/dev/e1000/e1000_ich8lan.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/sys/dev/e1000/e1000_ich8lan.c b/sys/dev/e1000/e1000_ich8lan.c index 1d15881f047d..8ca0fb392805 100644 --- a/sys/dev/e1000/e1000_ich8lan.c +++ b/sys/dev/e1000/e1000_ich8lan.c @@ -1413,6 +1413,7 @@ out: s32 e1000_disable_ulp_lpt_lp(struct e1000_hw *hw, bool force) { s32 ret_val = E1000_SUCCESS; + u8 ulp_exit_timeout = 30; u32 mac_reg; u16 phy_reg; int i = 0; @@ -1434,10 +1435,12 @@ s32 e1000_disable_ulp_lpt_lp(struct e1000_hw *hw, bool force) E1000_WRITE_REG(hw, E1000_H2ME, mac_reg); } - /* Poll up to 300msec for ME to clear ULP_CFG_DONE. */ + if (hw->mac.type == e1000_pch_cnp) + ulp_exit_timeout = 100; + while (E1000_READ_REG(hw, E1000_FWSM) & E1000_FWSM_ULP_CFG_DONE) { - if (i++ == 30) { + if (i++ == ulp_exit_timeout) { ret_val = -E1000_ERR_PHY; goto out; } |