ixgbevf: Prevent RX/TX statistics getting reset to zero

The commit 4197aa7bb81877ebb06e4f2cc1b5fea2da23a7bd implements 64 bit
per ring statistics. But the driver resets the 'total_bytes' and
'total_packets' from RX and TX rings in the RX and TX interrupt
handlers to zero. This results in statistics being lost and user space
reporting RX and TX statistics as zero. This patch addresses the
issue by preventing the resetting of RX and TX ring statistics to
zero.

Signed-off-by: Narendra K <narendra_k@dell.com>
Tested-by: Sibai Li <sibai.li@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index f69ec4288b104e6c175b54b17fe4ceecc363fba1..8b304a43a22d8c0d6453b9298e17f517f2fb0702 100644 (file)
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -969,8 +969,6 @@ static irqreturn_t ixgbevf_msix_clean_tx(int irq, void *data)
        r_idx = find_first_bit(q_vector->txr_idx, adapter->num_tx_queues);
        for (i = 0; i < q_vector->txr_count; i++) {
                tx_ring = &(adapter->tx_ring[r_idx]);
-               tx_ring->total_bytes = 0;
-               tx_ring->total_packets = 0;
                ixgbevf_clean_tx_irq(adapter, tx_ring);
                r_idx = find_next_bit(q_vector->txr_idx, adapter->num_tx_queues,
                                      r_idx + 1);
@@ -994,16 +992,6 @@ static irqreturn_t ixgbevf_msix_clean_rx(int irq, void *data)
        struct ixgbe_hw *hw = &adapter->hw;
        struct ixgbevf_ring  *rx_ring;
        int r_idx;
-       int i;
-
-       r_idx = find_first_bit(q_vector->rxr_idx, adapter->num_rx_queues);
-       for (i = 0; i < q_vector->rxr_count; i++) {
-               rx_ring = &(adapter->rx_ring[r_idx]);
-               rx_ring->total_bytes = 0;
-               rx_ring->total_packets = 0;
-               r_idx = find_next_bit(q_vector->rxr_idx, adapter->num_rx_queues,
-                                     r_idx + 1);
-       }
 
        if (!q_vector->rxr_count)
                return IRQ_HANDLED;