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igc: Add LPI counters

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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>
This commit is contained in:
Sasha Neftin 2020-06-04 14:25:16 +03:00 committed by Jeff Kirsher
parent 1cbedabffd
commit 900d1e8b34
2 changed files with 4 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

2
drivers/net/ethernet/intel/igc/igc_mac.c
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@ -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);

2
drivers/net/ethernet/intel/igc/igc_regs.h
View file

@ -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 */