From: Sasha Neftin <sasha.neftin@intel.com>
Date: Thu, 4 Jun 2020 14:25:16 +0300
Subject: igc: Add LPI counters
Patch-mainline: v5.9-rc1
Git-commit: 900d1e8b346b6f3f33718f5db8d3ee8b192860ba
References: jsc#SLE-13533
Add EEE TX LPI and EEE RX LPI counters. A EEE TX LPI event
occurs when the transmitter enters EEE (IEEE 802.3az) LPI
state. A EEE RX LPI event occurs when the receiver detect
link partner entry into EEE(IEEE 802.3az) LPI state.
Signed-off-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/intel/igc/igc_mac.c | 2 ++
drivers/net/ethernet/intel/igc/igc_regs.h | 2 ++
2 files changed, 4 insertions(+)
--- a/drivers/net/ethernet/intel/igc/igc_mac.c
+++ b/drivers/net/ethernet/intel/igc/igc_mac.c
@@ -307,6 +307,8 @@ void igc_clear_hw_cntrs_base(struct igc_
rd32(IGC_ICRXDMTC);
rd32(IGC_RPTHC);
+ rd32(IGC_TLPIC);
+ rd32(IGC_RLPIC);
rd32(IGC_HGPTC);
rd32(IGC_HGORCL);
rd32(IGC_HGORCH);
--- a/drivers/net/ethernet/intel/igc/igc_regs.h
+++ b/drivers/net/ethernet/intel/igc/igc_regs.h
@@ -188,6 +188,8 @@
#define IGC_ICTXQEC 0x04118 /* Interrupt Cause Tx Queue Empty Count */
#define IGC_ICTXQMTC 0x0411C /* Interrupt Cause Tx Queue Min Thresh Count */
#define IGC_RPTHC 0x04104 /* Rx Packets To Host */
+#define IGC_TLPIC 0x04148 /* EEE Tx LPI Count */
+#define IGC_RLPIC 0x0414C /* EEE Rx LPI Count */
#define IGC_HGPTC 0x04118 /* Host Good Packets Tx Count */
#define IGC_RXDMTC 0x04120 /* Rx Descriptor Minimum Threshold Count */
#define IGC_HGORCL 0x04128 /* Host Good Octets Received Count Low */