This patch removes the crc bytes from byte counter statistics.
Signed-off-by: Harry van Haaren <harry.van.haaren at intel.com>
---
drivers/net/e1000/igb_ethdev.c | 19 +++++++++++++++++--
1 file changed, 17 insertions(+), 2 deletions(-)
diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 88995b0..bf4c2a5 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -1480,6 +1480,13 @@ igb_read_stats_registers(struct e1000_hw *hw, struct
e1000_hw_stats *stats)
{
int pause_frames;
+ uint64_t old_gprc = stats->gprc;
+ uint64_t old_gptc = stats->gptc;
+ uint64_t old_tpr = stats->tpr;
+ uint64_t old_tpt = stats->tpt;
+ uint64_t old_rpthc = stats->rpthc;
+ uint64_t old_hgptc = stats->hgptc;
+
if(hw->phy.media_type == e1000_media_type_copper ||
(E1000_READ_REG(hw, E1000_STATUS) & E1000_STATUS_LU)) {
stats->symerrs +=
@@ -1521,10 +1528,13 @@ igb_read_stats_registers(struct e1000_hw *hw, struct
e1000_hw_stats *stats)
/* For the 64-bit byte counters the low dword must be read first. */
/* Both registers clear on the read of the high dword */
+ /* Workaround CRC bytes included in size, take away 4 bytes/packet */
stats->gorc += E1000_READ_REG(hw, E1000_GORCL);
stats->gorc += ((uint64_t)E1000_READ_REG(hw, E1000_GORCH) << 32);
+ stats->gorc -= (stats->gprc - old_gprc) * ETHER_CRC_LEN;
stats->gotc += E1000_READ_REG(hw, E1000_GOTCL);
stats->gotc += ((uint64_t)E1000_READ_REG(hw, E1000_GOTCH) << 32);
+ stats->gotc -= (stats->gptc - old_gptc) * ETHER_CRC_LEN;
stats->rnbc += E1000_READ_REG(hw, E1000_RNBC);
stats->ruc += E1000_READ_REG(hw, E1000_RUC);
@@ -1532,13 +1542,16 @@ igb_read_stats_registers(struct e1000_hw *hw, struct
e1000_hw_stats *stats)
stats->roc += E1000_READ_REG(hw, E1000_ROC);
stats->rjc += E1000_READ_REG(hw, E1000_RJC);
+ stats->tpr += E1000_READ_REG(hw, E1000_TPR);
+ stats->tpt += E1000_READ_REG(hw, E1000_TPT);
+
stats->tor += E1000_READ_REG(hw, E1000_TORL);
stats->tor += ((uint64_t)E1000_READ_REG(hw, E1000_TORH) << 32);
+ stats->tor -= (stats->tpr - old_tpr) * ETHER_CRC_LEN;
stats->tot += E1000_READ_REG(hw, E1000_TOTL);
stats->tot += ((uint64_t)E1000_READ_REG(hw, E1000_TOTH) << 32);
+ stats->tot -= (stats->tpt - old_tpt) * ETHER_CRC_LEN;
- stats->tpr += E1000_READ_REG(hw, E1000_TPR);
- stats->tpt += E1000_READ_REG(hw, E1000_TPT);
stats->ptc64 += E1000_READ_REG(hw, E1000_PTC64);
stats->ptc127 += E1000_READ_REG(hw, E1000_PTC127);
stats->ptc255 += E1000_READ_REG(hw, E1000_PTC255);
@@ -1571,8 +1584,10 @@ igb_read_stats_registers(struct e1000_hw *hw, struct
e1000_hw_stats *stats)
stats->htcbdpc += E1000_READ_REG(hw, E1000_HTCBDPC);
stats->hgorc += E1000_READ_REG(hw, E1000_HGORCL);
stats->hgorc += ((uint64_t)E1000_READ_REG(hw, E1000_HGORCH) << 32);
+ stats->hgorc -= (stats->rpthc - old_rpthc) * ETHER_CRC_LEN;
stats->hgotc += E1000_READ_REG(hw, E1000_HGOTCL);
stats->hgotc += ((uint64_t)E1000_READ_REG(hw, E1000_HGOTCH) << 32);
+ stats->hgotc -= (stats->hgptc - old_hgptc) * ETHER_CRC_LEN;
stats->lenerrs += E1000_READ_REG(hw, E1000_LENERRS);
stats->scvpc += E1000_READ_REG(hw, E1000_SCVPC);
stats->hrmpc += E1000_READ_REG(hw, E1000_HRMPC);
--
1.9.1
