[net-next 01/16] i40e/i40evf: Add EEE LPI stats

Jeff Kirsher
2014-03-21T12:10:12Z

From: Anjali Singhai Jain <anjali.singhai@intel.com>

Add 4 new stats to keep track of EEE LPI (Low Power Idle) state.

Change-ID: Id6316619bb0559789770288b694a54d17f8fac5c
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Acked-by: Shannon Nelson <shannon.nelson@intel.com>
Signed-off-by: Kevin Scott <kevin.c.scott@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 5 +++++
drivers/net/ethernet/intel/i40e/i40e_main.c | 15 +++++++++++++++
drivers/net/ethernet/intel/i40e/i40e_type.h | 5 +++++
drivers/net/ethernet/intel/i40evf/i40e_type.h | 5 +++++
4 files changed, 30 insertions(+)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
index 6049e63..28da412 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_ethtool.c
@@ -114,6 +114,11 @@ static struct i40e_stats i40e_gstrings_stats[] = {
I40E_PF_STAT("VF_admin_queue_requests", vf_aq_requests),
I40E_PF_STAT("tx_hwtstamp_timeouts", tx_hwtstamp_timeouts),
I40E_PF_STAT("rx_hwtstamp_cleared", rx_hwtstamp_cleared),
+ /* LPI stats */
+ I40E_PF_STAT("tx_lpi_status", stats.tx_lpi_status),
+ I40E_PF_STAT("rx_lpi_status", stats.rx_lpi_status),
+ I40E_PF_STAT("tx_lpi_count", stats.tx_lpi_count),
+ I40E_PF_STAT("rx_lpi_count", stats.rx_lpi_count),
};

#define I40E_QUEUE_STATS_LEN(n) \
diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 1133542..a1f3369 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -740,6 +740,7 @@ void i40e_update_stats(struct i40e_vsi *vsi)
u32 rx_page, rx_buf;
u64 rx_p, rx_b;
u64 tx_p, tx_b;
+ u32 val;
int i;
u16 q;

@@ -972,6 +973,20 @@ void i40e_update_stats(struct i40e_vsi *vsi)
i40e_stat_update32(hw, I40E_GLPRT_RJC(hw->port),
pf->stat_offsets_loaded,
&osd->rx_jabber, &nsd->rx_jabber);
+
+ val = rd32(hw, I40E_PRTPM_EEE_STAT);
+ nsd->tx_lpi_status =
+ (val & I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_MASK) >>
+ I40E_PRTPM_EEE_STAT_TX_LPI_STATUS_SHIFT;
+ nsd->rx_lpi_status =
+ (val & I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_MASK) >>
+ I40E_PRTPM_EEE_STAT_RX_LPI_STATUS_SHIFT;
+ i40e_stat_update32(hw, I40E_PRTPM_TLPIC,
+ pf->stat_offsets_loaded,
+ &osd->tx_lpi_count, &nsd->tx_lpi_count);
+ i40e_stat_update32(hw, I40E_PRTPM_RLPIC,
+ pf->stat_offsets_loaded,
+ &osd->rx_lpi_count, &nsd->rx_lpi_count);
}

pf->stat_offsets_loaded = true;
diff --git a/drivers/net/ethernet/intel/i40e/i40e_type.h b/drivers/net/ethernet/intel/i40e/i40e_type.h
index 5c902f4..d2f0b95 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_type.h
@@ -1014,6 +1014,11 @@ struct i40e_hw_port_stats {
u64 tx_size_big; /* ptc9522 */
u64 mac_short_packet_dropped; /* mspdc */
u64 checksum_error; /* xec */
+ /* EEE LPI */
+ bool tx_lpi_status;
+ bool rx_lpi_status;
+ u64 tx_lpi_count; /* etlpic */
+ u64 rx_lpi_count; /* erlpic */
};

/* Checksum and Shadow RAM pointers */
diff --git a/drivers/net/ethernet/intel/i40evf/i40e_type.h b/drivers/net/ethernet/intel/i40evf/i40e_type.h
index 7189d6f..efe73ad 100644
--- a/drivers/net/ethernet/intel/i40evf/i40e_type.h
+++ b/drivers/net/ethernet/intel/i40evf/i40e_type.h
@@ -1020,6 +1020,11 @@ struct i40e_hw_port_stats {
u64 tx_size_big; /* ptc9522 */
u64 mac_short_packet_dropped; /* mspdc */
u64 checksum_error; /* xec */
+ /* EEE LPI */
+ bool tx_lpi_status;
+ bool rx_lpi_status;
+ u64 tx_lpi_count; /* etlpic */
+ u64 rx_lpi_count; /* erlpic */
};

/* Checksum and Shadow RAM pointers */
--
1.8.3.1