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igc: Expose LPI counters

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Completion to commit 900d1e8b346b ("igc: Add LPI counters")
LPI counters exposed by statistics update method.
A EEE TX LPI counter reflect the transmitter entries EEE (IEEE 802.3az)
into the LPI state. A EEE RX LPI counter reflect the receiver link
partner entries 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: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Sasha Neftin 2020-08-13 18:18:15 +03:00 committed by Tony Nguyen
parent ef8a17a2a4
commit 40edc73469
3 changed files with 7 additions and 0 deletions
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3
drivers/net/ethernet/intel/igc/igc_ethtool.c
View File

@ -321,6 +321,9 @@ static void igc_ethtool_get_regs(struct net_device *netdev,
for (i = 0; i < 8; i++)
regs_buff[205 + i] = rd32(IGC_ETQF(i));
regs_buff[213] = adapter->stats.tlpic;
regs_buff[214] = adapter->stats.rlpic;
}
static void igc_ethtool_get_wol(struct net_device *netdev,

2
drivers/net/ethernet/intel/igc/igc_hw.h
View File

@ -244,6 +244,8 @@ struct igc_hw_stats {
u64 prc511;
u64 prc1023;
u64 prc1522;
u64 tlpic;
u64 rlpic;
u64 gprc;
u64 bprc;
u64 mprc;

2
drivers/net/ethernet/intel/igc/igc_main.c
View File

@ -3683,6 +3683,8 @@ void igc_update_stats(struct igc_adapter *adapter)
adapter->stats.prc511 += rd32(IGC_PRC511);
adapter->stats.prc1023 += rd32(IGC_PRC1023);
adapter->stats.prc1522 += rd32(IGC_PRC1522);
adapter->stats.tlpic += rd32(IGC_TLPIC);
adapter->stats.rlpic += rd32(IGC_RLPIC);
mpc = rd32(IGC_MPC);
adapter->stats.mpc += mpc;