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e1000: fix total byte statistics

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This patch fixes a bug in reading the 64 bit register reading
which was causing the total octets counters to show zero.
Now the code reads both the lower and higher 32 bits.
Tested in testpmd, byte values are correct.

Fixes: 805803445a ("e1000: support EM devices (also known as e1000/e1000e)")

Signed-off-by: Harry van Haaren <harry.van.haaren@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
This commit is contained in:
Harry van Haaren 2015-10-22 16:18:04 +01:00 committed by Thomas Monjalon
parent f11596cb94
commit 67b38d93c9
1 changed files with 4 additions and 2 deletions
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6
drivers/net/e1000/igb_ethdev.c
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@ -1316,8 +1316,10 @@ eth_igb_stats_get(struct rte_eth_dev *dev, struct rte_eth_stats *rte_stats)
stats->roc += E1000_READ_REG(hw, E1000_ROC);
stats->rjc += E1000_READ_REG(hw, E1000_RJC);
stats->tor += E1000_READ_REG(hw, E1000_TORH);
stats->tot += E1000_READ_REG(hw, E1000_TOTH);
stats->tor += E1000_READ_REG(hw, E1000_TORL);
stats->tor += ((uint64_t)E1000_READ_REG(hw, E1000_TORH) << 32);
stats->tot += E1000_READ_REG(hw, E1000_TOTL);
stats->tot += ((uint64_t)E1000_READ_REG(hw, E1000_TOTH) << 32);
stats->tpr += E1000_READ_REG(hw, E1000_TPR);
stats->tpt += E1000_READ_REG(hw, E1000_TPT);