bnx2x: Statistics

Statistics
- Making sure that each drop is accounted for in the driver statistics
- Clearing the FW statistics when driver is loaded to prevent
  inconsistency with HW statistics
- Once error is detected (bnx2x_panic_dump), stop the statistics
  before other actions (currently it is stopped last and can corrupt
  the data) - Adding HW checksum error counter to the statistics
- Removing unused variable stats_ticks
- Using macros instead of magic numbers to indicate which statistics are
  shared per port and which are per function

Signed-off-by: Yitchak Gertner <gertner@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 4 deletions

diff --git a/drivers/net/bnx2x.h b/drivers/net/bnx2x.h
index dc54602494fb..9cbf0e82ef38 100644
--- a/drivers/net/bnx2x.h
+++ b/drivers/net/bnx2x.h
@@ -258,8 +258,7 @@ struct bnx2x_fastpath {
 
         unsigned long           tx_pkt,
                                 rx_pkt,
-                                rx_calls,
-                                rx_alloc_failed;
+                                rx_calls;
         /* TPA related */
         struct sw_rx_bd         tpa_pool[ETH_MAX_AGGREGATION_QUEUES_E1H];
         u8                      tpa_state[ETH_MAX_AGGREGATION_QUEUES_E1H];
@@ -655,6 +654,8 @@ struct bnx2x_eth_stats {
 
         u32 brb_drop_hi;
         u32 brb_drop_lo;
+        u32 brb_truncate_hi;
+        u32 brb_truncate_lo;
 
         u32 jabber_packets_received;
 
@@ -671,6 +672,9 @@ struct bnx2x_eth_stats {
         u32 mac_discard;
 
         u32 driver_xoff;
+        u32 rx_err_discard_pkt;
+        u32 rx_skb_alloc_failed;
+        u32 hw_csum_err;
 };
 
 #define STATS_OFFSET32(stat_name) \
@@ -844,7 +848,6 @@ struct bnx2x {
         u16                     rx_ticks_int;
         u16                     rx_ticks;
 
-        u32                     stats_ticks;
         u32                     lin_cnt;
 
         int                     state;
@@ -984,7 +987,7 @@ static inline u32 reg_poll(struct bnx2x *bp, u32 reg, u32 expected, int ms,
 #define PCICFG_LINK_SPEED_SHIFT         16
 
 
-#define BNX2X_NUM_STATS                 39
+#define BNX2X_NUM_STATS                 42
 #define BNX2X_NUM_TESTS                 8
 
 #define BNX2X_MAC_LOOPBACK              0