ixgbe: add ethtool counters for OS2BMC

OS2BMC registers are available for X540.
This patch adds ethtool counters based on those registers.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Evan Swanson <evan.swanson@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

3 files changed, 18 insertions, 1 deletions

diff --git a/drivers/net/ixgbe/ixgbe_ethtool.c b/drivers/net/ixgbe/ixgbe_ethtool.c
index 545b231b2a74..1fdd075afe79 100644
--- a/drivers/net/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ixgbe/ixgbe_ethtool.c
@@ -102,6 +102,10 @@ static struct ixgbe_stats ixgbe_gstrings_stats[] = {
         {"alloc_rx_page_failed", IXGBE_STAT(alloc_rx_page_failed)},
         {"alloc_rx_buff_failed", IXGBE_STAT(alloc_rx_buff_failed)},
         {"rx_no_dma_resources", IXGBE_STAT(hw_rx_no_dma_resources)},
+        {"os2bmc_rx_by_bmc", IXGBE_STAT(stats.o2bgptc)},
+        {"os2bmc_tx_by_bmc", IXGBE_STAT(stats.b2ospc)},
+        {"os2bmc_tx_by_host", IXGBE_STAT(stats.o2bspc)},
+        {"os2bmc_rx_by_host", IXGBE_STAT(stats.b2ogprc)},
 #ifdef IXGBE_FCOE
         {"fcoe_bad_fccrc", IXGBE_STAT(stats.fccrc)},
         {"rx_fcoe_dropped", IXGBE_STAT(stats.fcoerpdc)},
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 56cc9a10c717..a3e384bc50fe 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -5912,8 +5912,13 @@ void ixgbe_update_stats(struct ixgbe_adapter *adapter)
                 hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCH);
                 hwstats->tor += IXGBE_READ_REG(hw, IXGBE_TORH);
                 break;
-        case ixgbe_mac_82599EB:
         case ixgbe_mac_X540:
+                /* OS2BMC stats are X540 only*/
+                hwstats->o2bgptc += IXGBE_READ_REG(hw, IXGBE_O2BGPTC);
+                hwstats->o2bspc += IXGBE_READ_REG(hw, IXGBE_O2BSPC);
+                hwstats->b2ospc += IXGBE_READ_REG(hw, IXGBE_B2OSPC);
+                hwstats->b2ogprc += IXGBE_READ_REG(hw, IXGBE_B2OGPRC);
+        case ixgbe_mac_82599EB:
                 hwstats->gorc += IXGBE_READ_REG(hw, IXGBE_GORCL);
                 IXGBE_READ_REG(hw, IXGBE_GORCH); /* to clear */
                 hwstats->gotc += IXGBE_READ_REG(hw, IXGBE_GOTCL);
diff --git a/drivers/net/ixgbe/ixgbe_type.h b/drivers/net/ixgbe/ixgbe_type.h
index b1d523ca4d81..70e6870be01f 100644
--- a/drivers/net/ixgbe/ixgbe_type.h
+++ b/drivers/net/ixgbe/ixgbe_type.h
@@ -672,6 +672,10 @@
 #define IXGBE_FCOEDWRC  0x0242C /* Number of FCoE DWords Received */
 #define IXGBE_FCOEPTC   0x08784 /* Number of FCoE Packets Transmitted */
 #define IXGBE_FCOEDWTC  0x08788 /* Number of FCoE DWords Transmitted */
+#define IXGBE_O2BGPTC   0x041C4
+#define IXGBE_O2BSPC    0x087B0
+#define IXGBE_B2OSPC    0x041C0
+#define IXGBE_B2OGPRC   0x02F90
 #define IXGBE_PCRC8ECL  0x0E810
 #define IXGBE_PCRC8ECH  0x0E811
 #define IXGBE_PCRC8ECH_MASK     0x1F
@@ -2554,6 +2558,10 @@ struct ixgbe_hw_stats {
         u64 fcoeptc;
         u64 fcoedwrc;
         u64 fcoedwtc;
+        u64 b2ospc;
+        u64 b2ogprc;
+        u64 o2bgptc;
+        u64 o2bspc;
 };
 
 /* forward declaration */