[dpdk-dev] [PATCH 13/16] e1000/base: ability to force K1-off disabled
Wenzhuo Lu
wenzhuo.lu at intel.com
Wed Nov 23 18:22:57 CET 2016
MAC-PHY desync may occur causing misdetection of link up
event. Disabling K1-off feature can work around the problem.
Signed-off-by: Wenzhuo Lu <wenzhuo.lu at intel.com>
---
drivers/net/e1000/base/e1000_hw.h | 1 +
drivers/net/e1000/base/e1000_ich8lan.c | 3 +++
2 files changed, 4 insertions(+)
diff --git a/drivers/net/e1000/base/e1000_hw.h b/drivers/net/e1000/base/e1000_hw.h
index 14e2e87..39a2a41 100644
--- a/drivers/net/e1000/base/e1000_hw.h
+++ b/drivers/net/e1000/base/e1000_hw.h
@@ -960,6 +960,7 @@ struct e1000_dev_spec_ich8lan {
E1000_MUTEX nvm_mutex;
E1000_MUTEX swflag_mutex;
bool nvm_k1_enabled;
+ bool disable_k1_off;
bool eee_disable;
u16 eee_lp_ability;
#ifdef ULP_SUPPORT
diff --git a/drivers/net/e1000/base/e1000_ich8lan.c b/drivers/net/e1000/base/e1000_ich8lan.c
index 89265d2..92d92c8 100644
--- a/drivers/net/e1000/base/e1000_ich8lan.c
+++ b/drivers/net/e1000/base/e1000_ich8lan.c
@@ -1688,6 +1688,9 @@ STATIC s32 e1000_check_for_copper_link_ich8lan(struct e1000_hw *hw)
fextnvm6 &= ~E1000_FEXTNVM6_K1_OFF_ENABLE;
}
+ if (hw->dev_spec.ich8lan.disable_k1_off == true)
+ fextnvm6 &= ~E1000_FEXTNVM6_K1_OFF_ENABLE;
+
E1000_WRITE_REG(hw, E1000_FEXTNVM6, fextnvm6);
}
--
1.9.3
More information about the dev
mailing list