[net-next,09/13] igc: Add LPI counters

Message ID 20200627015431.3579234-10-jeffrey.t.kirsher@intel.com
State New
Headers show
Series
  • 1GbE Intel Wired LAN Driver Updates 2020-06-26
Related show

Commit Message

Jeff Kirsher June 27, 2020, 1:54 a.m.
From: Sasha Neftin <sasha.neftin@intel.com>

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>
---
 drivers/net/ethernet/intel/igc/igc_mac.c  | 2 ++
 drivers/net/ethernet/intel/igc/igc_regs.h | 2 ++
 2 files changed, 4 insertions(+)

Patch

diff --git a/drivers/net/ethernet/intel/igc/igc_mac.c b/drivers/net/ethernet/intel/igc/igc_mac.c
index bc077f230f17..f3f7717b6233 100644
--- 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_hw *hw)
 	rd32(IGC_ICRXDMTC);
 
 	rd32(IGC_RPTHC);
+	rd32(IGC_TLPIC);
+	rd32(IGC_RLPIC);
 	rd32(IGC_HGPTC);
 	rd32(IGC_HGORCL);
 	rd32(IGC_HGORCH);
diff --git a/drivers/net/ethernet/intel/igc/igc_regs.h b/drivers/net/ethernet/intel/igc/igc_regs.h
index d53f49833db5..eb3e8e70501d 100644
--- 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 */