gianfar: Fix stats support

This patch updates the per rx/tx queue stats.
To update the per rx queue stats a new structure has been
introduced rx_q_stats.
The per tx queue stats are updated via the netdev_queue
structure itself.

Note that we update only the tx_packtes, tx_bytes, rx_packets,
rx_bytes and rx_dropped stats on a per queue basis.

Signed-off-by: Sandeep Gopalpet <Sandeep.Kumar@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h
index 68d16dc6e7c8..4943cbe642ab 100644
--- a/drivers/net/gianfar.h
+++ b/drivers/net/gianfar.h
@@ -940,6 +940,15 @@ struct gfar_priv_tx_q {
         unsigned short txtime;
 };
 
+/*
+ * Per RX queue stats
+ */
+struct rx_q_stats {
+        unsigned long rx_packets;
+        unsigned long rx_bytes;
+        unsigned long rx_dropped;
+};
+
 /**
  *      struct gfar_priv_rx_q - per rx queue structure
  *      @rxlock: per queue rx spin lock
@@ -962,6 +971,7 @@ struct gfar_priv_rx_q {
         struct  rxbd8 *cur_rx;
         struct  net_device *dev;
         struct gfar_priv_grp *grp;
+        struct rx_q_stats stats;
         u16     skb_currx;
         u16     qindex;
         unsigned int    rx_ring_size;