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igb: Fix stats output on i210/i211 parts. 

Due to a hardware issue, on i210 and i211 parts, the TNCRS statistic
provides an invalid value.  This patch changes the update stats function
to increment the stat only for non-i210/i211 parts.

Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Carolyn Wyborny 2012-09-12 04:36:24 +00:00 committed by Jeff Kirsher
parent f557147c46
commit 3dbdf96928
1 changed files with 5 additions and 1 deletions
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6
drivers/net/ethernet/intel/igb/igb_main.c
View File

@ -4776,7 +4776,11 @@ void igb_update_stats(struct igb_adapter *adapter,
reg = rd32(E1000_CTRL_EXT);
if (!(reg & E1000_CTRL_EXT_LINK_MODE_MASK)) {
adapter->stats.rxerrc += rd32(E1000_RXERRC);
adapter->stats.tncrs += rd32(E1000_TNCRS);
/* this stat has invalid values on i210/i211 */
if ((hw->mac.type != e1000_i210) &&
(hw->mac.type != e1000_i211))
adapter->stats.tncrs += rd32(E1000_TNCRS);
}
adapter->stats.tsctc += rd32(E1000_TSCTC);