be2net: Fix to use 32-bit stats to report rx_drops_no_fragment

Only BE devices provide 16-bit counter for rx_drops_no_fragment.
All other devices provide a 32-bit counter for this stat.
Use the 32-bit value where available.

Signed-off-by: Ajit Khaparde <ajit.khaparde@emulex.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 4babc8a..e60e7f7 100644 (file)
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -471,11 +471,26 @@ static void accumulate_16bit_val(u32 *acc, u16 val)
        ACCESS_ONCE(*acc) = newacc;
 }
 
+void populate_erx_stats(struct be_adapter *adapter,
+                       struct be_rx_obj *rxo,
+                       u32 erx_stat)
+{
+       if (!BEx_chip(adapter))
+               rx_stats(rxo)->rx_drops_no_frags = erx_stat;
+       else
+               /* below erx HW counter can actually wrap around after
+                * 65535. Driver accumulates a 32-bit value
+                */
+               accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags,
+                                    (u16)erx_stat);
+}
+
 void be_parse_stats(struct be_adapter *adapter)
 {
        struct be_erx_stats_v1 *erx = be_erx_stats_from_cmd(adapter);
        struct be_rx_obj *rxo;
        int i;
+       u32 erx_stat;
 
        if (lancer_chip(adapter)) {
                populate_lancer_stats(adapter);
@@ -488,12 +503,8 @@ void be_parse_stats(struct be_adapter *adapter)
 
                /* as erx_v1 is longer than v0, ok to use v1 for v0 access */
                for_all_rx_queues(adapter, rxo, i) {
-                       /* below erx HW counter can actually wrap around after
-                        * 65535. Driver accumulates a 32-bit value
-                        */
-                       accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags,
-                                            (u16)erx->rx_drops_no_fragments \
-                                            [rxo->q.id]);
+                       erx_stat = erx->rx_drops_no_fragments[rxo->q.id];
+                       populate_erx_stats(adapter, rxo, erx_stat);
                }
        }
 }