From: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Date: Fri, 11 Dec 2015 14:05:14 +0000 (+0300)
Subject: ixgbe: on recv increment rx.ring->stats.yields
X-Git-Tag: v4.7-rc1~154^2~355^2~13
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=75b6462e965dc76d16254b5fcb3f41ca97f6fef0;p=karo-tx-linux.git

ixgbe: on recv increment rx.ring->stats.yields

It seem to be non intentionally changed to Tx in
commit adc810900a70 ("ixgbe: Refactor busy poll socket code to address
multiple issues")

Lock is taken from ixgbe_low_latency_recv, and there under this
lock we use ixgbe_clean_rx_irq so it looks wrong for me to increment
Tx counter.

Yield stats can be shown through ethtool:
ethtool -S enp129s0 | grep yield

Signed-off-by: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
index e4949af7dd6b..9f64354c9c9e 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h
@@ -456,7 +456,7 @@ static inline bool ixgbe_qv_lock_poll(struct ixgbe_q_vector *q_vector)
 				IXGBE_QV_STATE_POLL);
 #ifdef BP_EXTENDED_STATS
 	if (rc != IXGBE_QV_STATE_IDLE)
-		q_vector->tx.ring->stats.yields++;
+		q_vector->rx.ring->stats.yields++;
 #endif
 	return rc == IXGBE_QV_STATE_IDLE;
 }